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revision 1.8 by adcroft, Wed Jul 1 22:49:29 1998 UTC revision 1.983 by mlosch, Mon Apr 28 14:25:30 2008 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/obcs: change default to OBCSfixTopo = .true.,
8      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
9      - replace "debugMode" with "debugLevel .GE. debLevB"
10    o implementation of TAF directives for gchem,cfc,dic
11    o remove "exp5" (replaced by tutorial_deep_convection).
12    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
13      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
14      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
15      --> changes results in exp4, seaice_obcs
16    o tutorial_deep_convection :
17      update the set-up and increase resolution and domain size ; start
18      from pseudo initial conditions = output at t=120mn in order to see
19      something happening when running testreport.
20    o pkg/seaice: add os7mp as an advection scheme
21                  add check for advection schemes
22                  add a flag for restoring T and S underneath sea ice
23    o pkg/my82: add netcdf-support and diagnostics
24    o thsice pkg:
25      - Now hsMax limits snow height by turning it into ice following
26        flooding scheme (and now conserving energy)
27      - Slight rewriting of the formula in thsice_calc_thick.F
28      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
29      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
30    
31    checkpoint59p
32    o gchem / dic / cfc :
33      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
34      - add new parameter files: "data.dic" & "data.cfc" ;
35      - various re-arrangement in initialisation & header file ;
36      - fix tutorial_global_oce_biogeo for multi-threaded test.
37    o pkg/dic: test for "pickup_dic" file when restarting ;
38      if no pickup-file, can restart with a re-initialised pH (same as it did
39      before) providing pickupStrictlyMatch is set to False.
40    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
41      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
42    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
43      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
44    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
45     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
46       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
47    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
48       scheme to use for vorticty-term ;
49     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
50       (with default selectVortScheme, return to original discretisation)
51     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
52    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
53    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
54      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
55      also fix diagnostics VISCAHW & VISCA4W.
56    
57    checkpoint59o
58    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
59    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
60      move a few statemens out the main loop into separate loops
61    o pkg/shelfice:
62      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
63        (kg/m^2/s), does not break tests, because in verification/isomip,
64        rhoConstFresh=rhoConst (by accident)
65      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
66      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
67        new file model/src/seawater.F, so that they are available for all pkgs.
68      - convert potential temperature into in-situ temperature. This changes the
69        isomip tests => update tests
70    o add a flag writePickupAtEnd (default=true) to be able to suppress
71      writing a pickup at the last timestep
72    o tools/mpack-1.6 :
73      - disable automake (not working) and autoconf (not needed).
74      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
75        also cleaner with much less compilation warnings.
76    o pkg/profiles:
77      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
78      (for "less than 32 characters name" compiler requirement)
79    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
80      conditions that have a different sampling frequency than S/T/U/V obcs
81    o pkg/diagnostics (stats-diags):
82      - fix global Min/Max in case 1 processor get only empty tiles
83    o genmake2: replace (4 times)
84         make genmake_tc_1.o >> genmake_warnings 2>&1
85      with
86         COMM="$CC $CFLAGS -c genmake_tc_1.c"
87         echo $COMM >> genmake_warnings
88         $COMM >> genmake_warnings 2>&1
89      to make genmake2 always see the value of CC as specified in the optfile.
90    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
91      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
92      - modify verification advect_cs test to test SOM-advection on CS-grid.
93    o pkg/ctrl:
94      - Rewrite of ctrl_map_ini_ecco.F,
95        introducing a generic routine (ctrl_map_ini_gen.F).
96      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
97    
98    checkpoint59n
99    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
100      number in dedicate array "hdiag":
101      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
102        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
103      - many small changes (integer format) for large number of diagnostics
104      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
105        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
106    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
107      usingSphericalGrid, this allows to define the rotated grid coordinates
108      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
109      geographical coordinates according to the inverse of the rotation defined
110      by the Euler angles, so that Coriolis parameter and online-interpolation by
111      exf works with the geographical coordinates on XC/YC/XG/YG.
112      Naturally, this feature does not work with all packages, so some
113      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
114      profiles), because there the coordinates are assumed to be regular
115      spherical grid coordinates.
116    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
117      - introduce isopycnal diffusion coefficient control.
118    o tools/adjoint_options:
119      - additional control vector components.
120    o pkg/mnc: have mnc create marginally meaning full coordinate variables
121      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
122    o pkg/mypackage:
123      - add example of read/write pickup for state-var ;
124      - add entry points to the main code for state-vars diags & write-pickup.
125    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
126      transitions for useExfYearlyFields
127      - add new subroutine that determines the file to read from for
128        use*YearlyFields = .TRUE. and .FALSE.
129      - add a verification experiment to global_with_exf that tests
130        useExfYearlyFields with USE_EXF_INTERPOLATION defined
131    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
132      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
133      subroutines (which could be generated from a template, because they are
134      almost identical), for now they are included in obcs_prescribe_read.F for
135      simplicity
136    o pkg/exf:
137      - add a little more diagnostic to exf_interp_read (in analogy to
138        mds_read_field, can be turned off with debugLevel < debugLevA=1)
139      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
140        ugly but fast by unrolling short inner loops, inserting a unroll=8
141        directive in routine lagran, and splitting a loop and making do while the
142        outermost loop (the latter requires the intoduction of index arrays)
143    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
144    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
145      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
146    o verification/seaice_obcs: updated for restart test and latest options
147    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
148      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
149      for now this is only available for the C-grid code and also within
150      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
151    
152    checkpoint59m
153    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
154      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
155    o gad_som : fix flux output (& diagnostics) to have same units as other  
156      advection scheme fluxes (was previously multiplied by deltaT).  
157    o added verification/seaice_obcs both to test seaice open boundaries
158      and to provide an example matlab scrpt for generating them
159    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
160    o pkg/salt_plume: clean up salt_plume_frac.F to
161      remove redundancy in PlumeMethod 1 and 4
162    o pkg/kpp: added saltplume diagnostics
163    o pkg/obcs and pkg/seaice:
164      - do not set uice and vice to zero when OB*icefile are unspecified
165      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
166      - moved seaice tracer obcs after call to seaice_growth
167    o pkg/salt_plume: added various options for salt plume depth
168      criterion and for vertical distribution of the salt
169    
170    checkpoint59l
171    o pkg/ptracers: new version of ptracers pickup:
172      read meta file and write only fields which are needed to restart.
173      ( same logic as main pickup file ; also using pickupStrictlyMatch )
174    o pkg/seaice:
175      - add timescale for melting due to warm mixed layer as a means of
176        setting SEAICE_availHeatFrac more conveniently
177      - add a CPP-flag/runtime parameter check for flooding algorithm
178      - reformulated availHeat in seaice_growth.F to be independent of AREA
179    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
180      unit changes
181    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
182    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
183      SX vector computer.
184    o pkg/seaice:
185      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
186        seaice forcing fields can now be read only through pkg/exf
187      - removed some unused halos
188    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
189    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
190      or U/VICE from U/VWIND before computing U/VSTRESS
191    
192    checkpoint59k
193    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
194      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
195    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
196      all experiments pass when compile with un-initialised var. checking option.
197    o added pkg/salt_plume
198    o script to test restart (for now, in MITgcm_contrib/jmc_script)
199    o pkg/seaice: new read/write pickup version.
200      read meta file and write only fields which are needed to restart.
201      ( same logic as main pickup file ; also using pickupStrictlyMatch )
202    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
203    o lab_sea.hb87: modify the domain & update output.hb87.txt :
204      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
205      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
206      process. Fixed here by closing the domain at the Northern boundary.
207    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
208    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
209      a set of consecutive levels in/from a 3-D array.
210    o pkg/ptracers:
211      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
212      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
213    
214    checkpoint59j
215    o in pkgs: dic, obcs, offline, rbcs:
216      standard way to compute coeff. for time interpolation between 2 time reccords
217      which retains full precision (& make results less dependent on compiler).
218      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
219    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
220      packages instead of reading ice cover and wind speed separately
221    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
222     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
223      to allow to compile customized code before the update)
224    o cleaning-up:
225      - fix CPP instruction syntax in pkg/obcs
226      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
227        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
228      - fix some threads issue in IO parts.
229    o pkg/dic:
230      - add tons of "_d 0" (--> much better testreports !)
231       and then update outputs of tutorial_global_oce_biogeo
232    o pkg/mom_fluxform:
233      add a special version of momentum advection intended to conserve momentum
234      next to a bathymetry step or a coastline edge. (default = off = #undef)
235    o new read/write pickup version:
236      - for now, only implemented for main (mdsio) pickup file.
237      - write out only what is needed to restart; merge pickup_nh , pickup_ph
238        and main pickup together.
239      - read meta file; read only what is needed to restart; stop if a field
240        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
241        if it make sense (even if the restart is not perfect).
242      - if no meta file, assume that pickup to read corresponds exactly to
243        a pickup that would currently be written.
244      - read pickup written in the old format (until checkpoint59i) if it
245        recognizes an old meta file (no field-list).
246      - add a meta file in exp. which starts from a pickup: 2 cases:
247        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
248         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
249        b) a meta file describing the content of the associated pickup file
250         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
251    o pkg/mdsio & pkg/rw:
252      - new routine to read a meta file ; new set of routine to read
253        Multiple-fields file (with meta file).
254    o added open boundary conditions capability for seaice
255        HSNOW, HSALT, UICE, and VICE
256    
257    checkpoint59i
258    o adjoint:
259      * fix multiDimAdvection adjoint
260        (partial recomputation problem by TAF for fVerT(:,:,kDown)
261        and comlev1 size definition (maxpass vs. max. number of tracers)
262      * verification/global_ocean.90x45x15 adjoint now tests
263        NLFS and multiDimAdvection using DST3 (=30)
264      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
265    o pkg/kpp: add "_d 0" to real constant (if missing);
266      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
267      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
268    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
269      for internal parameters related to restart process (formerly from PARAMS.h)
270      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
271    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
272      as argument. (only atm2d & obcs write_pickup have not yet been updated)
273    o pkg/monitor:
274      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
275      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
276      - account for deep Atmosphere factor and density factor (anelastic)
277    o added open boundary conditions capability for seaice HEFF and AREA
278    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
279      thermodynamics
280      - requires a little reorganization, which affects the testreport results
281        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
282        so that now the conservative form is tested
283      - add a few comments
284    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
285    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
286    o add new diagnostics to seaice: advective, diffusive fluxes (only for
287      multidim-advection, for scheme 2 they are not filled) and transports,
288      thermodynamic growth rates
289    o change units of EmPmR (inside the code, + within coupling interface)
290      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
291      Affects results @ truncation level (cg2d match) and update output of
292       experiments: lab_sea(6), global_ocean.90x40x15(10),
293      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
294      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
295      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
296      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
297    
298    checkpoint59h
299    o pkg/exf:
300      - improve vectorization by moving if-statement out of loops in
301        exf_mapfields, exf_radiation
302      - exf_bulkformulae.F: introduce 2D fields and vectorize code
303    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
304    o testreport:
305      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
306        monitor & update offline_exf_seaice exp. output.
307      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
308    o pkg/seaice:
309      - bug fix in the evp solver: boundary conditions were affected be
310        masking of zMax/zMin (changes results)
311      - minor bug fix in boundary conditions in seaice_calc_strainrates
312        (changes results for no_slip)
313      - seaice_lsr.F: make interpolation of eta dependent on boundaries
314      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
315      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
316        stress formulation and no-slip boundary conditions
317    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
318      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
319    o pkg/seaice: a first HSALT time stepping equation has been checked in
320    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
321      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
322      without requiring DO-IF statements
323    o pkg/thsice:
324      use continuous power-law function for partition of energy between lateral
325      melting/freezing and thinning/thickening ; old code using step function
326      still available with #undef THSICE_FRACEN_POWERLAW
327      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
328    o testreport: change AD testing : check against results/output_adm.txt
329      using same scripts as for forward test.
330    
331    checkpoint59g
332    o adjoint testing: in preparation for changing testreport:
333      - output format: cost and grad written on separated lines
334      - ad output results in directory "results" (instead of "results_ad")
335    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
336    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
337    o pkg/ecco: allow user defined cost function contributions
338    o testreport:
339      Allow to choose (per experiment) the list of tested output variables
340       and the main variable (used to issue a pass/FAIL ) ;
341      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
342      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
343      Also modify printing of summary:
344       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
345       b) echo the list of tested variables in the individual summary.txt of
346          each experiment.
347    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
348      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
349      (but still depend on the tile decompostion of the domain).
350    o pkg/seaice: change a discretization detail to make the B-grid code
351      "more symmetric". This change is likely to remove all "ridges/leads" that
352      where quasi-aligned with the grid in B-grid solutions. It may also be
353      the solution to the stress coupling issues with the B-grid.
354    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
355      remove .cvsignore from input dir. (since testreport no longer run here).
356    o pkg/thsice:
357     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
358     - fix reshaping of sea-ice just after advection:
359       melt all the ice only if ice-volume is too small.
360     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
361       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
362     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
363    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
364      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
365    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
366      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
367      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
368      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
369      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
370      -> update output.txt
371    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
372     this affects truncation error: -> update output.txt of exp:
373      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
374      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
375    
376    checkpoint59f
377    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
378    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
379      a bounded range (in forward mode)
380    o pkg/ecco, ctrl, autodiff and mom_common:
381     internal parameter controls, completements of implementations
382    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
383    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
384      (not seem any difference in testing results).
385    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
386       at face corners.
387    o pkg/generic_advdiff:
388     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
389      loop range indices for computing vertical advection tendency
390      and do the calculation in the interior only (no overlap) ;
391      for now, only implemented for SOM advection (to save CPU time).
392     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
393    o exch2 adjoint
394      First set of changes:
395      - add exch2 hand-written adjoint templates
396      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
397        This will require cleanup in pkg/autodiff/*.F
398        (changed routines currently kept separate in verif. code/)
399      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
400        that used to hide exch2 or cubed-sphere specific code
401        (commented via 'cph-exch2')
402    o pkg/seaice
403      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
404    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
405       output of global_ocean.cs32x15.thsice .
406    
407    checkpoint59e
408    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
409      for B-grid vector (not yet tested) and C-grid vector (<- only used
410      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
411    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
412      (#ifdef ALLOW_SALT_PLUME)
413    o gather_2d/scatter_2d: removed halo regions
414    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
415      scheme and the corresponding test case (under front_relax dir). For now,
416      only available with Skew-flux form and not yet tested in realistic set-up.
417      adjoint: store directives updated, but gradient checks deteriorated,
418      so maybe GM/Redi adjoint is now broken.
419    o seaice adjoint
420      * add AREA, HEFF, HSNOW as control variable
421        (should not change lab_sea results)
422      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
423    o pkg/seaice:
424      * added computation of saltFlux in seaice_growth;
425        For time being, sea ice salinity is assumed constant
426        contribution of snow flooding to freshening of sea ice is neglected.
427        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
428        defaults to 0.0 in order to maintain backward compatibility.
429        Typical values for SEAICE_salinity are 4 to 10 g/kg.
430      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
431      * added SEAICE_availHeatFrac, which specifies fraction of surface level
432        heat content used to melt or grow ice
433      * commented out cap of HICE: it helps keep ice thinner
434      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
435      * applied OBCS T/S mask to HEFFM sea ice mask
436    
437    checkpoint59d
438    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
439     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
440     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
441    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
442     and change default value of parameter "GM_Small_Number";
443     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
444       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
445       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
446    o pkg/ecco: cost function when applying pkg/smooth to controls
447    o pkg/ctrl: add forcingPrecond run time parameter
448    o pkg/seaice:
449     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
450     - fix bug in metric terms of u-equation in LSR solver (implicit part),
451       changes verification/lab_sea
452     - rearrange implicit part of u-equation in LSR solver to make it easier to
453       read, understand, and debug. This causes changes at the truncation level.
454     - fix (serious) bug in the boundary conditions (sign error in the implicit
455       part) of the LSR solver. Changes all LSR results.
456     - fixed problem with HSNOW initialization to avoid thick snow when AREA
457       is initilized with small values - does not change lab_sea results.
458     - added HsnowFile initialization capability
459    o pkg/smooth: addition to model/src and pkg/ctrl so allow
460     initialization of pkg/smooth and application to control vector
461    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
462    o dependencies: pkg/profiles requires pkg/cal
463    o pkg/profiles:
464     - added option ALLOW_PROFILES_GENERICGRID
465         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
466         that interpolation information (grid points and coefficients) is provided
467         within the netcdf input files.
468         -> sample matlab scripts can be found in MITgcm_contrib/gael
469         that allow you to prepare netcdf input files.
470     - also modified: cleaner include statements, cleaner error print statements,
471       cleaner stops when error, and more tests of the netcdf input files consistency.
472    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
473    o pkg/seaice:
474     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
475       requires a new routine: seaice_diagnostics_fill.F
476     - make sure that seaice does not move if not forced (pressure replacement
477       method, Hibler and Ip, 1995), changes results
478     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
479     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
480       It is turned off by default (=-1.), because it changes the results.
481     - make it possible to read AREA from a file, too.
482    
483    checkpoint59c
484    o add S/R and diagnostics for oceanic mixed-layer depth
485    o move GMRedi call after all vertical mixing schemes (including KPP)
486    o pkg/thsice:
487     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
488      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
489    o pkg/obcs:
490     - bug fix for balance code
491    o pkg/seaice:
492      - allow values of SEAICE_elasticParm > 1
493      - add new parameter SEAICE_evpTauRelax as an alternative
494        to SEAICE_elasticParm
495      - make lsr boundary conditions free slip (by default), changes result
496      - add code for no slip boundary conditions for lsr
497      - set minimum of zeta to zero (and not 4e8) (changes results)
498      - add a cap on AREA after advecting AREA if seaice_growth is not called
499    o change calculation of Visbeck K:
500      - no longer depend on tapering scheme; instead, compute slope (limited
501        by GM_maxSlope). this is equivalent to what was comuted before with
502        clipping or linear tappering.
503      - fix vertical averaging (wrong by 1/2 level)
504      - leave the old version (but will not be maintained) within
505        #ifdef OLD_VISBECK_CALC / #endif
506      - update output of exp. ideal_2D_oce
507    o change error catch in calc_r_star to improve vectorization
508    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
509      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
510    o adjoint:
511      Re-organized adjoint checkpointing according to Matt Mazloff
512      (but with modifs/completions/cleanups)
513      Storing is now bundled into large arrays to optimized I/O
514      (and second step in cleanup of the_main_loop)
515    
516    checkpoint59b
517    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
518      - export/import (between ocean & coupler) fields needed for ocean DIC.
519    o pkg/seaice:
520      - get rid of three more exchanges seaice_calc_viscosities (required
521        different loop boundaries in seaice_lsr and seaice_ocean_stress)
522      - bug fix in seaice_ocean_stress (update of lab_sea required)
523      - reduce loop boundaries to necessary minimum also in seaice_evp
524      - go back to the old way of computing deltaC/Z as the adjoint likes that
525        better
526    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
527      passive tracer to an Age Tracer) + update output.txt
528    o pkg/exf:
529      - implement A-grid / C-grid selection for wind-stress input files.
530      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
531      for now, in exf_bulk_largeyeager04.F only :
532      - change implementation for case where windspeed + 2. components wind-stress
533        are read-in. AND use rhoConstFresh to convert evap.
534    o pkg/seaice:
535      - use correct EXCH_UV for wind-forcing (on A-grid).
536      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
537        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
538    o pkg/exf:
539      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
540      EXF_INTERPOLATION:
541      - merge global_with_exf/code version of exf_interp_read.F
542        to the main code ;
543      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
544        reading the file ; Important: This options needs to be defined to recover
545        previous code.
546        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
547      - no longer loose real*8 precision along the way when using exf_iprec=64.
548    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
549      - change discretisation of evp-solver in order to avoid another exchange
550        (changes lab_sea) and clean up a little
551      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
552        help the adjoint (this also changes the results slightly)
553      - add a few "_d 0" where they had been missing in seaice_evp.F
554      - cleaning up: remove unused seaice_calc_rhs.F
555    o pkg/exf: some cleaning-up:
556      - change various "constants" into runtime parameters
557      - cleaned-up Large&Yeager04 routine which should eventually
558        replace exf_bulkformulae.F (changed names of S/R and CPP)
559        and merged various ALLOW_ATM_WIND options
560     only used with thsice pkg (in thsice_get_exf.F):
561      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
562        which are used when useStabilityFct_overIce=TRUE (= the default)
563      - change default values of ice & snow emissivity and scale downward LW
564        by ice & snow emissivity.
565    o pkg/thsice:
566     fix few little problems, in thsice_calc_thickn.F:
567      - growth vertically (and not laterally) if iceFrac == iceMaskMax
568      - melt only laterally if hIce < hThinIce (as the comments say)
569      and in thsice_extend.F:
570      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
571      - start to form ice as soon as the minimum ice-volume is reachable.
572     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
573      and cpl_aim+ocn
574    o pkg/kpp
575     - move computation of surface related input fields to KPP into a new
576       subroutine kpp_forcing_surf.F
577     - remove wrong (within bi,bj loops) EXCH calls.
578     - little cleaning (add argument myThid in last position, cvs header ...)
579     - for now, fix conservation problem by exchanging KPPviscAz (may not
580       be the best fix)
581    o pkg/seaice
582     - check for inconsistent evp parameter/cpp-flag combination
583     - remove leftover errIO flat for obsolete name list error handling
584    o OpenAD
585     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
586    
587    checkpoint59a
588    o pkg/seaice: some parameter clarifications and a little bit of clean up
589    o pkg/thsice: rename run-time parameters:
590       himin       -> hIceMin
591       himin0      -> hThinIce
592       hihig       -> hThickIce
593       i0          -> i0swFrac
594       transCoef   -> bMeltCoef
595       frac_energy -> fracMelting
596      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
597       with default values (for now) that do not change the results.
598      remove old version of thsice vars advection in pkg/seaice.
599    o in FFIELDS.h:
600      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
601      - make pLoad & sIceLoad always available (but still only used if
602         ATMOSPHERIC_LOADING is #define).
603    o pkg/kpp: replaced _KPP_RL with _RL
604    o bug fixes for vertical diffusivity computations when both KPP and
605        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
606        are no longer updating the vertical diffusivity array
607        (passed as argument) but are (re-) setting those arrays.
608    o pkg/seaice: fix bug in evp solver, while doing that
609      - change (improve?) discretization of stress computations for both
610        cgrid-lsr and evp solver
611      - add a new routine to compute strain rates
612      - the above changes lab_sea results
613      - add no slip conditions for evp solver (off by default), lsr-version
614        may follow
615      - fix exchange for shear at Z-points (does not change lab_sea)
616      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
617        (to force the user to pick a time step since there is not "safe" way
618        of choosing it)
619      - add principal stress diagnostics
620      - rearrange fields for evp a little to avoid having to call a: too many
621        exchanges and b: exchanges for stress trensor components which we do
622        not have.
623      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
624        of evp, complete rewrite for lsr case (latter is does not yet work
625        in all cases)
626    o pkg/kpp: add code to have mixing in shelf ice caverns
627      - add myThid to all kpp routines (long overdue)
628    
629    checkpoint59
630    o pkg/exf:
631      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
632        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
633      - move exf header files from lower_case.h to UPPER_CASE.h ;
634        add missing cvs Header & Name
635      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
636      - add namelist param. selectStressGridPosition, exf_monFreq
637      - retire many _CLIM routines, and remove data.exf_clim
638        + params moved to data.exf
639        + climsst, climsss now handled by exf_set_gen, i.e.
640          climss?period=0 refers to constant field,
641          climss?period=-12 to monthly forcing
642      - split up namelists in data.exf
643    o pkg/seaice:
644      - remove seaice_exch and seaice_exch_uv
645      - remove superfluous exchange of theta
646      - add myThid to seaice_budget_ocean/ice
647      - add new interface for atmospheric wind forcing (C-grid only)
648        + new routine
649        + two new field (taux, tauy for stress over ice)
650        + removed one global field (DAIRN) for C-grid case only
651    o pkg/thsise
652      - 2nd set of modifs for thsice adjoint in conjunction with exf
653    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
654    
655    checkpoint58y_post
656    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
657      vertical diffusivity, similar to that in MOM4; turned on using
658      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
659      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
660    o Added capability for 3D specification of background vertical diffusion
661      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
662      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
663      "data" file that contains the 3D vertical diffusivity coefficients.
664    o ice dynamics (pkg/seaice) with thsice thermodynamics:
665      - add code within pkg thsice to advect & diffuse sea-ice fields
666      similar to (and will replace) what has been added in  seaice_advdiff.F,
667      but: - conserving Mass, Heat & Salt.
668           - better when using non-linear advection scheme (not yet fully tested)
669           - can also be used in atmospheric set-up (for now, only the diffusion).
670    
671    checkpoint58x_post
672    o IO option for global-file compact format:
673      - add options when generating topology (utils/exch2/matlab-topology-generator)
674      - add I/O capability (pkg/mdsio).
675      - adapt utils/matlab/rdmds.m to read this format.
676      for now long-line format not yet supported by pkg/mdsio (& exch2).
677    o shelfice: add a few diagnostics
678    
679    checkpoint58w_post
680    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
681      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
682      (and replace horiVertRatio in NH code).
683      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
684                         and tutorial_plume_on_slope (sensitive to truncation)
685    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
686      directly to drive seaice model (C-grid only)
687    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
688     - reintroduce computation of wind from stress,
689     - compute tau (in exf_bulkformulae.F) from windstress averaged to
690       mass points to avoid tau = 0
691     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
692    o rdmnc.m: make it work with "global" files created with gluemnc
693    o rdmnc.m : some improvements in dealing with singleton dimension
694      (tested on all testreport mnc output files).
695    o genmake2: disable pkg/profiles if netcdf test fails.
696    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
697    o move call to cal_readparms up to make calendar parameters/variable available
698      to all packages
699    
700    checkpoint58v_post
701    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
702      useDynP_inEos_Zc tested.
703    o pkg/exf: changes to properly interpolate/mask/scale initial fields
704    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
705      and portions thereof.  See read_cs.txt for description and examples.
706    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
707      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
708      following the great-circle arc between those 2 points.
709    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
710      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
711    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
712     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
713     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
714     - still needs work (not working with some options ; efficiency to improve)
715       and serious testing.
716     - use this scheme for temperature & salinity in 2 advection test exp.:
717       advect_xy & advect_xz, respectively.
718    
719    checkpoint58u_post
720    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
721    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
722    o testreport: add option "-skipdir" to skip some test.
723    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
724      momentum calculation.
725    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
726    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
727      remove checkpoint.F and the_correction_step.F (no longer used);
728      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
729    o add option (linFSConserveTr) to correct for tracer source/sink due to
730      Linear Free surface
731    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
732    o pkg/thsice: fix reading mnc-pickups
733    
734    checkpoint58t_post
735    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
736    o pkg/mdsio:
737     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
738       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
739       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
740     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
741     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
742       either MDS_READ_FIELD or MDS_WRITE_FIELD )
743     - new S/R (to replace MDSWRITEMETA), which allows to write more
744       informations (variable names, time ...) to meta files.
745     - modify rdmds.m to give back the meta file content.
746    o pkg/diagnostics: change vertical interpolation to be safer, and more
747       flexible (define p-levels to interpolate to in data.diagnostics);
748      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
749       diagnostic pointer.
750    o pkg/seaice: more cleaning up of seaice_growth, added many comments
751    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
752    o fix multi-category seaice:
753     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
754       SEAICE_MULTICATEGORY
755     - fix short wave heat flux
756    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
757       and allow to use EVP solver. Change forward lab_sea: test both EVP
758       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
759    o Initial check-in of lab_sea adjoint
760      (very similar to natl_box_adjoint/code_seaice)
761      * used C-grid and EVP solver
762      * used KPP, GM/Redi
763      * uses inAdExact=.TRUE.
764      * gradient checks fail for both ADM and TLM
765        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
766        f.d. gradients actually seem more problematic than ADM, TLM gradients;
767        issue is related to forward mismatch between g77 an ifort
768    o pkg/seaice: overhaul of thermodynamics
769     - growth.F and groatb.F are replaced by new routine seaice_growth.F
770     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
771     - move a few global fields out of SEAICE.h into seaice_growth.F and
772       make them 2D (FICE/QNETO/ ...)
773     - remove FO (it is the same as QNETO)
774     - introduce a few local fields to avoid modifying external fields such
775       as atemp, etc.
776    
777    checkpoint58s_post
778    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
779      changed exf_set_gen.F so that
780        genperiod=0 means input file is one time-constant field and
781        genperiod=-12 means input file contains 12 monthly means
782    o CG2D: use pre-computed solver main-diagonal (stored in common block);
783      this affects truncation error ; generate new output file for exp. which
784      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
785        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
786        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
787        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
788        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
789        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
790    o start implementation of deep-atmosphere and anelastic formulation
791    o verification: remove 2nd copy of input files and use script "prepare_run"
792      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
793    o mom_common/vecinv/fluxform: fix a few initialisation isssues
794    o profiles: fix for multithreaded case
795    
796    o diagnostics: rename few diags:
797      s/'PRESSURE'/'RCENTER '/g
798      s/'TICE    '/'oceFreez'/g
799      s/'TAUX    '/'oceTAUX '/g
800      s/'TAUY    '/'oceTAUY '/g
801      s/'SWFLUX  '/'oceQsw  '/g
802      s/DIFx/DFxE/g
803      s/DIFy/DFyE/g
804      and add few ocean-forcing diagnostics:
805      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
806    o modifications to pkg/seaice/growth.F and budget.F, which change results of
807      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
808      as actual snow thickness.  It now refers everywhere to effective snow
809      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
810    
811    checkpoint58r_post
812    o modifications to pkg/seaice/growth.F, which change results of
813      lab_sea experiment: fixes pertain to melting snow over open water, to
814      masking EVAP under sea ice, and to using the correct AREA variable for
815      computations of EVAP, PRECIP, HSNOW, and GHEFF
816    o add ability to read bathy, salt, and theta using MNC (off by def)
817    o add flooding algorithm and advection of HSNOW for pkg/seaice;
818      both are turned off by default and do no change any results
819    o seaice advection with pkg/thsice: a step toward the use of non-linear
820      advection scheme, but #ifdef or commented out for now (requires more EXCH).
821    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
822      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
823      in natl_box (affects results @ truncation level: update output.txt)
824    o multi-threading and IO:
825      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
826      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
827        (needed to work with SingleCpuIO): tested in all verif. exp.
828    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
829      affects the results (but none of the verification test uses this scheme).
830    o Adding some pkg/diagnostics capability to pkg/seaice
831      (will certainly be subject to changes)
832    o ctrl: adding new control variables:
833      lwflux, lwdown, evap, snowprecip, apressure, runoff
834    
835    checkpoint58q_post
836    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
837      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
838      high_res_cube configuration by 4% on Columbia.
839    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
840      add (in global_with_exf/code) a version of EXF_INTERP_READ without
841      dynamical allocation (seems to work in multi-threaded).
842    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
843      single CPU io) so that TAF does not have to see EESUPPORT.h
844    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
845    
846    checkpoint58p_post
847    o obcs: stop if obcs is used with useCDscheme = .true.
848    o shelfice:
849     - fix a sign error so that no slip at shelfice interface works
850     - remove stop for combination non-hydrostatic code and shelfice. That does
851       not mean, that the results are correct, but at least they are numerically
852       stable
853    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
854    o added adjoint exch routined for all exch*3d* routines
855      and updated flow directives
856    
857    checkpoint58o_post
858    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
859      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
860    o change controling S/R for writing pickup file (new S/R do_write_pickup)
861      and clean-up reading/writing of pickup files.
862    o fix local version of read/write pickup (NH part) in rotating_tank/code
863    o simplify EXCH interface:
864     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
865     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
866    o added the regrid package
867    o shelfice:
868     - add a simple boundary layer scheme to reduce noise
869     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
870    
871    checkpoint58n_post
872    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
873       local variable (not in common block).
874    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
875      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
876      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
877        to work with SingleCpuIO.
878    o add "_d 0" to real constant of pkg/cfc subroutines ;
879       update exp. cfc_exemple & tutorial_cfc_offline output files.
880    o multi-threading and IO:
881      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
882        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
883      - barrier before and after reading.
884      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
885      - avoid using MDS_WRITELOCAL for LAND pkg output.
886      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
887        common-block variables ; Allows multi-threading with master-thread IO.
888    o change default MAX_NO_THREADS from 32 to 4 ;
889      and stop cleanly when MAX_NO_THREADS is too small.
890    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
891    
892    checkpoint58m_post
893    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
894       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
895    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
896       keep global_ocean.90x40x15 (for AD testing) with former secondary test
897       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
898    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
899        add MITgcm_tutorials (= code + all the tutorials)
900    o ecco, option to compute cost for total ssh (mean+anom)
901    o consistent with addition of ptracer and ssh in pkg/profiles
902    o profiles: adding ptracer and ssh
903    o testreport: change multi-test output-file name
904      (from output.txt.{name} to output.{name}.txt)
905    o profiles: now ok for mutli-tiles case
906    o seaice: add 4 parameters for different advection schemes for area,
907      (effective) seaice thickness, enthalphy, and snow height. Their default
908      is the standard parameter SEAICEadvScheme
909    o calc_gw:
910     - add cosFacU in zonal viscous flux (harmonic.visc.).
911     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
912       of tutorial_plume_on_slope.
913    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
914    o calc_gw: true flux-form, account for horizontal grid spacing.
915      update rotating_tank results, but not plume_on_slope (affected at
916      truncation level, 11 digits).
917    
918    checkpoint58l_post
919    o calc_gw:
920     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
921     - remove side-drag for now (need to fix it); update plume_on_slope results.
922     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
923    o commit code to make SST/SSS weights spatially variable
924      (based on either variable in-situ or variable initial T/S weights)
925    o pkg/ecco:
926      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
927        now based on horizontally varying weights wthetaLev, wsaltLev
928      * cost_averagesflags now returns year indices in addition to day, month
929      * sflux balance is performed on annual basis
930        (sflxumm, sfluxmm2, bal_sfluxmm)
931      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
932        including separate counting and multipliers
933    o pkg/rbcs
934      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
935    
936    checkpoint58k_post
937    o testreport:
938     - always build in dir. "build" (if not there, mkdir build instead of building
939       & running in input)
940     - run in dir run (if it exists), in build otherwise.
941     - call prepare_run (if input/prepare_run exists)
942     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
943    o pkg/exf modifications to interpolation and rotation routines for more
944       reasonable treatment of North Pole singularity: for tracers North Pole
945       value is set to northernmost zonal-mean value, for zonal velocity it is
946       set to zero, and for meridional velocity it is set to northernmost value.
947    o pkg/exf/exf_check_range.F
948     - add tile index to diagnostics and move stop statement to the very
949       end of the routine.
950    o pkg/diagnostics: (diagnostics_main_init.F)
951      define title of isomorphic variables according to the current config.
952    o pkg/thsice with pkg/seaice dynamics:
953    - fix domain of computation (interior only, required for exf) and do exchanges
954    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
955    o towards a standard way of dealing with multi-threading in MONITOR
956      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
957    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
958       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
959    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
960    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
961    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
962       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
963    o tracer advection:
964     - clean-up and simplify calc_common_factors.F
965     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
966       advection subroutine (but still not used within DST advection S/R)
967    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
968    
969    checkpoint58j_post
970    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
971      from file (collects calls previously in FORWARD_STEP)
972    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
973    o adjoint store dir. adjusted accordingly
974    o genmake2
975      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
976    
977    checkpoint58i_post
978    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
979      on wind stress (SEAICEstressFactor defaults to 1.)
980    o Total number of Timers is finite (<=40): comment out 2 non-essential one
981      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
982    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
983      on CS-grid: no longer loosing mass.
984    o exf & curvilinear-grid: no longer modify longitude xC & xG.
985    o pkg/ggl90: fix sloppy output and fix a bug
986    o pkg/seaice: added SEAICEuseEVPpickup parameter
987      - Set to false in order to start EVP solver with
988        non-EVP pickup files when using SEAICEuseEVP
989      - fix sign error in diffusion in seaice_calc_rhs
990    
991    checkpoint58h_post
992    * Modifications for bottom topography control
993      o replace hFacC by _hFacC at various places
994      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
995      o add non-self-adjoint cg2d_nsa
996      o update autodiff support routines
997      o re-initialise hfac after ctrl_depth_ini
998      o works for 5x5 box, doesnt work for global_ocean.90x40x15
999    * Adding verification for 5x5 box (4-layer) bottom topography control
1000    
1001    checkpoint58g_post
1002    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1003       used for mean seasonal cycle, mean diurnal cycle); add an example
1004       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1005    o pkg/ggl90:
1006      - add parameter (minimum surface kinetic energy)
1007      - fix bug (avoiding division by zero)
1008    o couple pkg/thsice to pkg/seaice:
1009      - modify advection in seaice to accomodate new scalar fields to be advected
1010      - only muliDimAdection scheme work with seaice/thsice
1011      - mapping of thsice-variables to seaice-variables, back and forth
1012      - does not break the verification experiments, but does not give the
1013        desired results either
1014    o pkg/seaice
1015      - make (default) second order advection a bit less confusing?
1016    
1017    checkpoint58f_post
1018    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1019      to pkg/seaice):
1020      - new routines thsice_map_exf and thsice_get_exf provide the interface
1021      - add an additional formal parameter to thsice_solve4temp
1022    o pkg/exf:
1023      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1024      - correct Stefan-Boltzmann constant
1025      - new parameter for longwave surface emittance
1026      - separate some stuff from exf_bulkformulae into new routines  
1027        exf_radiation, exf_wind
1028      - add new parameters and constants: longwave emissivity for ocean, ice
1029        and snow, evaporation parameters over ice
1030      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1031        either wind from stress or stress from wind
1032    o pkg/thSIce:
1033    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1034    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1035       and THSICE_CALC_THICKN
1036    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1037    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1038      to make debugging easier.
1039    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1040    o pkg/bulk_force:
1041      - clean-up comments and parameters ;
1042      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1043    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1044      generate new output for test-experiment: aim.5l_cs.thSI
1045    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1046      testreport accordingly
1047    
1048    checkpoint58e_post
1049    o SEAICE_CGRID adjoint done
1050    o R_STAR adjoint implemented.
1051      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1052      * need to sort out init. of h0facc, etc.
1053    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1054      to be able to use it in pure forward.
1055    
1056    checkpoint58d_post
1057    o upgrade simple test-experiment to tutorial example:
1058     step.1: duplicate the experiment and (step.2) will remove the old copy.
1059      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1060      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1061      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1062      tutorial_global_oce_biogeo    <- copy of dic_example
1063      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1064      tutorial_plume_on_slope       <- copy of plume_on_slope
1065      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1066      tutorial_global_oce_optim     <- empty for now (David ?)
1067      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1068     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1069    o correct a sign problem in cost_scat.F
1070    o obcs and ptracers: fix boundary conditions for advections schemes
1071      with larger stencil
1072    o thsice adjoint: start
1073    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1074      completeness
1075    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1076      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1077    o ptracers adjoint:
1078      * avoid extensive recomputatations
1079      * fix missing re-init. of gptr (missed by TAF)
1080    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1081      me to turn off the excessive output to STDOUT that this package produces
1082    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1083      and add those terms in Vector-Invariant formulation.
1084    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1085      if the control period (xx_hfluxperiod etc) is 0
1086    o in profiles pkg, clean routines and fix details
1087    o in ecco pkg, reading ssh data:
1088      fix problem in case the model does not start at iter0=0
1089    o fix mnc-pickup/restart for ptracers
1090    o new package prifiles:
1091      code to compute profile-based cost by Gael Forget
1092      (modifs in ecco, ctrl, autodiff)
1093    o Benign bug fix in initialization (spotted by M. Mazloff) of
1094      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1095    
1096    checkpoint58c_post
1097    o adjoint: finish NLFS adjoint and provide reference output in
1098      verification/global_ocean.90x40x15/results_ad_nlfs
1099    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1100      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1101      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1102      with SEAICE_CGRID defined.
1103    o move calendarDumps from "data" to "data.cal" and clean-up the code
1104      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1105    o add useEXF & useCAL flags (for now, set in hard-coded way)
1106    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1107      (were missing in NH mode, and wrong in quasihydrostatic mode).
1108      waiting for Chris updated version of calc_gw to add those CALLs.
1109    o fix bug in quasihydrostatic S/R ;
1110      add a test for this option: global_ocean.90x40x15.qshyd
1111    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1112      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1113    o add on/off flag useOffLine for package OFFLINE
1114    o seaice:
1115      - modify advection so that it works also on the C-grid
1116      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1117        problem in multi-tile runs with C-grid
1118      - add flags for clipping ice velocities and/or masking solver forcing
1119      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1120        C-grid solver
1121      - added a few comments to seaice_diffusion.F
1122      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1123        are now exclusive)
1124      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1125        required re-ordering the code a little:
1126       + make DAIRN global variable (defined in SEAICE)
1127       + move computation of the viscosities eta and zeta into a new separate
1128         routine (because I need to recompute them in seaice_ocean_stress.F)
1129    
1130    checkpoint58b_post
1131    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1132      update output.txt of exp. aim.5l_cs.thSI
1133    o various mnc cleanups and improvements:
1134      + shrink lookup tables by factor of ~4
1135      + better error reporting when running out of lookup space
1136      + able to handle longer path/file names (up to 500 chars)
1137    o adjoint:
1138      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1139      - TBD: "hidden" mom_vecinv recomp. in dynamics
1140    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1141     (allow to differentiate between forcing components using new integer flags:
1142      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1143     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1144    o ecco
1145      - enable trend removal from SSH anomaly obs.
1146    o adjoint
1147      - a fix for PmEpR when #undef EXACT_CONSERV
1148      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1149      - try to fix "hidden" recomp. in forward_step for NLFS
1150        (NLFS seems broken sometimes after I checked it in)
1151    o seaice:
1152     - add c-grid version of the dynamic solver:
1153       + three new routines that are the c-grid substitute lsr, dynsolver
1154         and ostres
1155       + put a few fields that were local to dynsolver into global common
1156         blocks, so that I can move the computation of stresses etc into
1157         seaice_lsr (saves coding but may break the adjoint).
1158     - replace more hardwired parameters by runtime parameters
1159     - add ice masks that mask the rhs of the implicit solvers where there
1160       is no ice (commented out in seaice_dynsolver, because i am not sure
1161       if this works properly), eventually this should replace the clipping
1162       of ice velocities in seaice_dynsolver to +/-40cm/s.
1163    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1164      include it only where its needed
1165    o move balancing of fluxes before the call of external_forcing_surf
1166    o seaice:
1167      - correct units of turning angles (now they are really in degrees)
1168      - move computation of GWATX/Y out of main routine into dynsolver
1169      - initialize GWATX/Y in seaice_init
1170    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1171      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1172    o seaice: add runtime flags for turning angles (default to zero)
1173    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1174      and trend from exf forcing and ctrl control adjustments
1175    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1176      (since checkpoint57x_post)
1177    o change the default rotation period to 86164.s = the Earth rotation
1178    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1179      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1180    o seaice advection: add code for choosing between the default (2nd order
1181      central differences) and multiDim advection schemes provided by
1182      pkg/generic_advdiff
1183    o seaice:
1184      - removed all references to SEAICE_GRID.h fields from
1185        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1186        (cubed-sphere configuration will change a little)
1187      - grid computations in seaice_init are obsolete now.
1188      - cleaned up code a little so that is easier to read (hopefully).
1189      - added new (better?) discretizations of default advection and diffusion
1190        (turn on with SEAICEuseFluxForm)
1191      - replace 1 in 3d global fields by kSurface in growth.F
1192      
1193    checkpoint58a_post
1194    o seaice:
1195      - bug fix in advect.F
1196    o shelfice:
1197      - separate shelfice load anomaly from pload (breaks with time
1198        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1199        Its default is 0., but it may be computed more cleverly from (unknown)
1200        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1201        done offline. A good approximation of the pressure load anomaly is
1202        necessary to avoid large initial adjustment processes underneath
1203        deep-reaching shelfice.
1204      - small fix in ISOMIP shelfice_thermodynamics
1205      - add more sophisticated thermodynamics of Hellmer (1989), this is
1206        now the default
1207      - give a few constants more intuitive names
1208    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1209      if bulk formulae are used in long integration (especially EmPmR). Turn
1210      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1211      if balancePrintMean, the imbalance that is substracted is printed to
1212      STDOUT.
1213    o fix bug (typo) in obcs_apply_eta.F
1214    o add a new package shelfice which enables us to model the circulation
1215      underneath shelf-ice with draughts of hundreds of meters.
1216     - works
1217     - to do: + include improved thermodynamics
1218              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1219                instead of new field kTopC
1220              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1221                instead of new field R_shelfIce and new code in ini_depth.F
1222                and ini_mask_etc.F?
1223              + adjust vertical mixing schemes?
1224    o seaice pkg:
1225     - add a cpp-flag to include a simple formula for a salinity dependent
1226       freezing point of sea water at the surface
1227     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1228       meridional stresses are now different (and hopefully correct)
1229    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1230       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1231       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1232    o pkg/diagnostics: add options and parameters for regional-statistics
1233       diagnostics ; define regions by reading a region-mask from a file
1234       (might add other options later)
1235    o pkg/bulk_force:
1236     - add option and parameters to use AIM surface-flux formulae.
1237     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1238       others forcing fields (defined in PARM05, parameter file "data") are loaded
1239       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1240     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1241     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1242     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1243       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1244     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1245    
1246    checkpoint58
1247    o add "--embed-source" option to genmake2 which, when the supporting
1248      tools can be compiled (as determined by genmake2) will turn on the
1249      embed_files package which then embeds the entire MITgcm source code
1250      (*.[fFhc] + Makefile) used for the build within the executable
1251      - requested by CNH but off by default
1252      - adds a paltry <9MB to the mitgcmuv executable in most cases
1253      - only writes the output when useEMBEDSRC in eedata is true
1254    o clean up 3-dim. relaxation codes:
1255      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1256      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1257      * Thanks to Tom Haine for testing!
1258    
1259    checkpoint57z_post
1260    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1261      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1262    o fix the pickup behavior for obcs in combination with ptracers
1263    o fix a bug in ptracers_external_fields_load
1264    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1265      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1266    o transfered surface NH pressure to eta field (if exactConserv).
1267    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1268         and update lab_sea output.txt file.
1269    o completing 3-dim. relaxation code: additional term
1270         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1271      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1272      * At compile time, in "EXF_OPTIONS.h" set
1273          #define  ALLOW_CLIMTEMP_RELAXATION
1274          #define  ALLOW_CLIMSALT_RELAXATION
1275      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1276          tauThetaClimRelax3Dim = 15552000.0,
1277          tauSaltClimRelax3Dim  = 15552000.0,
1278      * 3 cases:
1279          1) Use a constant-in-time 3-dim. field
1280          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1281          3) Real-time relax. to time-evolving prescribed field
1282    o Adding Laplacian-type smoothness constraint on
1283      initial and boundary (forcing) controls (ic, bc)
1284      * enable at compile-time via
1285        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1286      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1287      * Absolute scale somewhat unclear so far
1288      * no area weighting was included since no other cost term does so far
1289    
1290    checkpoint57y_post
1291    First step for a NLFS adjoint
1292    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1293    o new init. routines for calc_r_star, calc_surf_dr
1294    o still need to deal with ini_masks_etc
1295    o testreport seemed happy
1296    checkpoint57y_pre
1297    
1298    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1299    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1300    o add new offset feature to offline pkg (plus minor cleanup)
1301    o cfc fixes for final year of integration
1302    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1303      be in GCHEM_OPTIONS).
1304    
1305    checkpoint57x_post
1306    o fix testreport Pb in multiple test experiment.
1307    o cleanup our namelist syntax in verification:
1308      - make it more F95 standards compliant (some work still needed)
1309      - allows the vast majority of our tests to work with gfortran
1310    o Non-Hydrostatic:
1311     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1312     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1313    o Allow to apply AB on T,S rather than on AB(gT,gS):
1314     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1315     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1316       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1317     - need a "clever" read_pickup to restart from the other AB formulation
1318    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1319    o remove some unused variables (reduces number of compiler warnings)
1320    o adjoint
1321      * Disable useVariableViscosity for adjoint for time being
1322        (there are a number of extensive recomputations)
1323      * Initialize certain variables needed for adjoint
1324    
1325    checkpoint57w_post
1326    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1327                 fix the singleCpuIO RS version of MDSWRITEFIELD
1328       and add a WARNING if using globalFiles=T with multi-processors.
1329    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1330      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1331    o tracer advection scheme:
1332      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1333       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1334       was not very convenient).
1335      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1336       (further tests needed for the implicit DST & Flux-Limiter schemes).
1337    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1338      and sRef for convenience, handy, when you want to initialize
1339      ptracers in a large domain with a constant non-zero value. Also,
1340      untangle ptracers_init.F a little.
1341    
1342    checkpoint57v_post
1343    o change dome exp. to use variable viscosity in side-drag terms.
1344    o remove all the files from the cfc_offline test since they are now
1345      incorporated into tutorial_cfc_offline which has been producing
1346      identical results for a few days of testing
1347    o add new parameter: sideDragFactor to enable half-slip-side BC
1348      and change side-drag S/R to use viscosity from mom_calc_visc
1349      (can switch back by setting sideDragFactor=0.); affects results at
1350      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1351       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1352    o vorticity & strain are now computed without masking, to account for
1353      no-slip-side BC in variable viscosity calculation ; mask is applied
1354      anyway later on, before computing advection/coriolis terms.
1355    o modify exp4 to test new obcs support for reading from external files
1356      and for passive tracers
1357    o fix behavior of ptracers_monitor when monitor output is written to a
1358      netcdf-file; still not independent of monitor.F (writes in the same
1359      file).
1360    o change default value of tRef (put a uniform, meaningful value for ocean
1361      & atmos) and initialize sRef (was missing, as Martin mentioned).
1362    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1363      to be proportional to enstrophy dissipation length.  Thus,
1364       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1365      This is now consistent with Smagorinsky and with the manual.
1366    
1367    checkpoint57u_post
1368    o OBCS and PTRACERS: add open boundary support for passive tracers
1369      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1370        OB-values from file; this is not different from the way theta and salinity
1371        are treated
1372      - however, Orlanski-radiation conditions are not supported, and the model
1373        will stop if you use pTracers and Orlanski at the same time.
1374      - beefed up the rountine obcs_external_fields_load: now only those open
1375        boundary values are overwritten with values from files for which there
1376        are really files, otherwise the OB-fields remain untouched. This makes
1377        it possible to use different OBs at different ends of the domain (as
1378        with EXF)
1379    o reduce number of exch calls in shap_filt (s2).
1380    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1381      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1382    
1383    checkpoint57t_post
1384    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1385    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1386      same truncation, independent of the face number: affects affects several
1387      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1388    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1389      note that biharmonic viscosity + no-slip was not tested in any experiment.
1390    o fix bug in non-linear free-surf side-drag ; generate new output for
1391      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1392    o make mnc honor the writeBinaryPrec flag for most kinds of output
1393    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1394    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1395      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1396    o add brackets in multi-terms sum to get same truncation, independent of
1397      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1398      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1399    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1400      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1401      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1402      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1403      Suggested values of viscosity parameters found in mom_calc_visc.
1404      Many new viscosity diagnostics available.
1405    
1406    checkpoint57s_post
1407    o Add clearing-house for viscosity calculations, mom_calc_visc and
1408      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1409      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1410      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1411      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1412      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1413      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1414      ViscAhStrain and viscAhTension are now retired.
1415    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1416    o In response to JMC's bug report, genmake2 now ignores any soft-links
1417      that it finds in the *current* directory when searching for files.
1418      Soft-links found in any other source directories will still work as
1419      they did before.
1420    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1421      a C routine to unlimit the stack size
1422    o mnc-ify pkg/aim snapshot vars
1423    o mnc-ify pkg/land as requested by Daniel
1424    o various changes to mnc including:
1425      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1426      - output can now be grouped so that all files within a group
1427          change the ITER portion of their names in lock-step together
1428      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1429          and works with both EXCH1 and EXCH2 (but needs more testing)
1430      - writing works for all verification test cases w/ g77 on Linux
1431    
1432    checkpoint57r_post
1433    o make MNC variable initialization happen earlier
1434    o add diagnostics for (almost) each term of the momentum Eq.
1435    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1436    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1437    o remove MINIMAL_TAVE_OUTPUT option ;
1438      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1439    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1440      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1441    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1442    o add time-dependent SST, SSS control
1443    o cost terms in ecco/ modularized (new cost_generic.F)
1444    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1445    o new infrastructure for seaice model vs. obs misfits in seaice/
1446      * driver from the_main_loop.F is seaice_cost_driver.F
1447      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1448      * gradient check in Exp. 6a of natl_box_adjoint/
1449    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1450      (see README file)
1451    
1452    checkpoint57q_post
1453    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1454    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1455      - bug was reported by Jean-Michel and Ian Fenty
1456    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1457      update exp. cpl_aim+ocn output.
1458    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1459      Needed for high-res. runs with large global files
1460      to be able to limit tapelev size
1461    o Changed some tests for adjoint:
1462      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1463      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1464      * global_ocean.90x40x15/ back to default 3-level checkpointing
1465    o Modifications to enable scripted COMMON to MODULE conversion
1466      * verification/OpenAD/code/ has necessary scripts and description;
1467      * converts, compiles and runs successfully;
1468    
1469    checkpoint57p_post
1470    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1471    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1472      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1473    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1474    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1475      (was already the case for dissipation with mom_vecinv,
1476       and also the case for grad.PhiHyd when staggered-timeStep)
1477      This will allow to put dissipation out-off the AB time-stepping.
1478     Unfortunately, affects truncation error. Update output of exp. that "fails"
1479      (cg2d matching number) and leave the others for later: front_relax(10),
1480      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1481      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1482    
1483    checkpoint57o_post
1484    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1485      (2) its ready to be documented during the 20050801 DocFest
1486    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1487      for ideal_2D_oce and lab_sea on linux_ia32_g77
1488    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1489      in global1x1_tot/code_seaice_adj to access indices 32, 33
1490      (worth another tag)
1491    
1492    checkpoint57n_post
1493    o adding precip control xx_precip 32
1494    o adding swflux control xx_swflux 33
1495    o Replacing 10 forcing penalty cost routines by 1 generic.
1496    o Implementing partitioning in time-mean and variable adjustment
1497      for atmos. state.
1498    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1499    o in natl_box_adjoint:
1500      * updated exp 1 to 10
1501        (but does not have time-mean vs. variable split results yet)
1502    o updated global1x1/*_seaice_adj/
1503      to incorporate latest changes
1504    o enable useSingleCpuIO for mdsio vector routines
1505      (applies in particular to tapelev I/O)
1506    o removed inefficient K-loop in all active_file*control*.F
1507    
1508    checkpoint57m_post
1509    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1510      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1511    o pkg/exch2: filling of face-corner halo regions is optional
1512      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1513    
1514    checkpoint57l_post
1515     tag before updating tutorials (pre-release-2)
1516    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1517       for output and interpolation of input fields onto model grid)
1518    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1519       Affects results of exp. rotating_tank ; update output.txt.
1520    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1521          and taking the square quantity and/or using a fraction-weight field.
1522    o fix aim_diagnostics_init.F mate numbers.
1523    o add mnc output capability to diagnostics/diagstat and update
1524      our cvsignore files for the ACSII output generated
1525    
1526    checkpoint57k_post
1527    o lab_sea now uses diagnostics package and provides a suite of
1528      new EXF diagnostics output.
1529    
1530    checkpoint57j_post
1531    o exf
1532      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1533        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1534        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1535      * extended diagnostics output
1536        - now includes all EXF variables
1537        - hs, hl moved to common block
1538        - separate S/R for diagnostics, called after ctrl vector is added
1539        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1540        - EXFqnet contains true Qnet (i.e. includes qsw)
1541      * updated verif. lab_sea, global_with_exf
1542      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1543        to ensure that diagnostics sees a true EXFqnet
1544    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1545    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1546      several times with different frequencies.
1547    o mnc-ify the thsice package as requested by Daniel Enderton
1548      - the monitor--MNC output needs work
1549      - many attributes need to be added (most are currently blank)
1550    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1551      - many attributes need to be added (most are currently blank)
1552    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1553    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1554    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1555      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1556         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1557    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1558     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1559    
1560    checkpoint57i_post
1561    o Diagnostics package was changed: diagnostic allocation is now deactivated
1562      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1563    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1564      add 1rst Order upwind vertical Shear.
1565    o add a quick fix for A/B checkpointing in OFFLINE mode
1566    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1567      end-run around the C/Fortran linking horror in eesup/src/timers.F
1568    o added pkg/runclock: allows user to terminate run based on wall clock
1569    o added non-hydrostatic scaling parameter: nh_am2
1570    o pkg/my82: futile attempt to make results compiler-independent by adding
1571      some "_d 0", etc. no effect.
1572    o for mnc output, fill the 'T' coordinate var with myTime and create a
1573      separate 'iter' variable for iteration count
1574    o pkg/diagnostics:
1575      add new capability: output of Global/Regional & per-level statistics ;
1576      tested against monitor output (including land & thSIce) on various exp.
1577    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1578    
1579    checkpoint57h_done
1580      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1581      data.diagnostics, data.gchem, data.ptracers) is done.
1582    
1583    o pkg/diagnostics: prepare for Global/Regional statistics.
1584      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1585    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1586      and rename it: DIFFERENT_MULTIPLE
1587    
1588    checkpoint57h_post
1589    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1590    o pkg/diagnostics: change output frequency, now in seconds (instead
1591      of Nb of iterations). This requires to change data.diagnostics.
1592    checkpoint57h_pre
1593    
1594    o in mnc, let the user create the output dir if both mnc_outdir_date
1595      and mnc_outdir_num are false
1596    o add fflags() to pkg/diagnostics which allows one to specify, on a
1597      per-file basis, the file precision [default behavior is unchanged]
1598    o added diagnostics to pkg/kpp, including computation of mixed layer
1599      depth based on a temperature/density criterion
1600    o updated verification/natl_box to test the new pkg/kpp diagnostics
1601    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1602    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1603    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1604      not mnc -- this mistake was found by JMC and is now corrected
1605    
1606    checkpoint57g_post
1607    o add Adams-Bashforth 3rd Order time stepping:
1608      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1609      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1610    checkpoint57g_pre
1611    
1612    o make lambda[Theta,Salt]ClimRelax spatially varying
1613      (default remains spatially uniform constant based on tau)
1614    o added new control variables
1615      * init. uVel, vVel, etanN
1616      * lambda[Theta,Salt]ClimRelax
1617    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1618      (suggested by G. Forget)
1619    
1620    checkpoint57f_post
1621    o add parameter "baseTime" = model base time = time at iteration zero
1622      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1623      account for baseTime shift
1624    o move Coriolis arrays from PARAMS.h to GRID.h
1625    checkpoint57f_pre
1626    
1627    o mnc-ifying the seaice package
1628    o introduced an alternative length scale calculation for use in the limiting
1629      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1630    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1631    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1632      as well as grad(vort3).  Made it compatible with both approximate form
1633      for the cubed sphere and full form of these gradients.  Added flag
1634      useFullLeith to select between approximate and full form.  
1635    o add "d0" in getcon.F to reduce differences between compilers/platforms
1636      update output.txt of exp. fizhi-gridalt-hs
1637    o change port_rand funtion to allow to set the seed.
1638    o fix obscure MNC bug involving conversion between reals and integers
1639      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1640        new version is now more standards-compliant
1641    o adjoint-related modifications
1642      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1643      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1644      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1645    
1646    checkpoint57e_post
1647    o Adding eddy stress controls a la Ferreira et al.
1648    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1649    
1650    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1651      update output.txt of exp. fizhi-gridalt-hs
1652    o add more "Z" dimensions and associated coordinate vars to MNC
1653    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1654    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1655      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1656      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1657      months and years.  Requires pkg/cal.
1658    o diagnostics: add pickup functionality
1659      - off by default for backwards compatibility
1660      - current version only uses MDSIO -- MNC will be added
1661    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1662    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1663    
1664    checkpoint57d_post
1665    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1666    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1667      output from the diagnostics package
1668    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1669    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1670      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1671    o add coordinate variables to the MNC output from the diagnostics package
1672    o change MNC-flags default value: true when useMNC=TRUE
1673    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1674      the ability (off by default) to read the grid information using MNC
1675    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1676    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1677    o do snap-shot diagnostics at the middle of the time-interval (instead of
1678      at the end).
1679    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1680      new test for AIM with thSIce + slab-ocean
1681    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1682    o move state variable diagnostics to the beginning of the time step ;
1683      (note: still needs some work specially for snap-shot diagnostics)
1684      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1685    
1686    checkpoint57c_post
1687    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1688    o generate new output.txt files on faulks with g77 & the new -ieee option
1689    checkpoint57c_pre
1690    
1691    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1692      update output.txt of exp. global_ocean.90x40x15
1693    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1694      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1695    o add saltFlux(+File) forcing capability with periodicExternalForcing
1696    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1697    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1698    o improvements for the MNC output from DIAGNOSTICS:
1699      - correct handling of the unlimitied dimension
1700      - all dims now have associated coordinate variables
1701      - variables located at U, V, and Corner ("Z") points are now written
1702        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1703        *all* data points are output
1704    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1705    o added pkg/seaice/seaice_monitor.F
1706    o mdsio_readfield.F can now read files visible only to master MPI process.
1707    o pkg/seaice: some test code for ice-modified ocean stress
1708    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1709      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1710      spurious negative numbers for precipitation and humidity.  Will cause
1711      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1712    o pkg/ctrl/
1713      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1714        May be enabled via doPackDiag
1715      *  introduce z-scaling of
1716         + gradient (doZscalePack) and
1717         + control (doZscaleUnpack)
1718    o pkg/mdsio/
1719      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1720      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1721    
1722    checkpoint57b_post
1723    o simplify options in diagnostics_fill arguments (remove weird combinations)
1724    o fix MNC coordinate variables so that they now contain per-face index
1725      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1726      general, EXCH2 grids are only aligned to a "local" coordinate system
1727    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1728    o Implement instantaneous output within pkg diagnostics:
1729      setting a negative frequency in data.diagnostics produces
1730     "snap-shot" output (as opposed to time-average if freq > 0)
1731    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1732      NOTE: change ptracer diagnostics name: use 2 characters to work with
1733            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1734    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1735      becomes the coordinate variable for the 'T' dimension
1736    o add CF-style coordinate variables to MNC
1737      - just a first cut:  numbers are meaningless on the cubesphere and
1738        missing along the T axis but otherwise it works!
1739    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1740    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1741    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1742      this is based directly on what the model compute, so that the content of
1743      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1744    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1745    o clean up build options files for SunOS, in particular
1746      - remove -traditional from xmakedepend
1747      - change -xarch=v9 to -xarch=native for f77
1748      - restore use of make (not gmake)
1749      - add CC=gcc if using g77
1750    o changes per discussion of AM, JMC, & EH3 today:
1751      - move redundant "grid" variables out of "state" -- in preparation of
1752        creating proper CF-style coordinate variables and in recognition
1753        that any/all grid variables can be easily copied (eg. w/NCO) from
1754        the grid files into any of the other NetCDF files
1755      - *always* output grid variables with MDSIO (this will eventually be
1756        changed)
1757      - output MNC grid file if useMNC is true
1758    o every instance of _END_MASTER() has been found and replaced with
1759      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1760      preprocessors
1761    o re-arrange diagnostics pkg initialisation:
1762     - allow each package to extend the available diagnostics list
1763     - add some checking and fix small problems (multi-threaded, ...)
1764     - new S/R diagnostics_fill (replace fill_diagnostics):
1765       look through the short list of active diag. (instead of the long list)
1766       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1767    
1768    checkpoint57a_post
1769    o this set of changes restores TAMC compatibility
1770      tested for global_ocean.90x40x15 adjoint on trough
1771      (what a pain)
1772    
1773    checkpoint57a_pre
1774    o some modifs in tools/build_options for sunos
1775    o call ctrl_pack for ctrl at end for optimcycle=0
1776    
1777    checkpoint57
1778    o add horizontal bi-harmonic viscosity for vertical velocity
1779      - new parameter viscA4W (defaults to viscA4)
1780      - affects only non-hydrostatic code
1781      - to be done: no-slip lateral boundary conditions
1782    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1783    o implement Implicit Vertical advection for pTracers
1784    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1785      (implemented also for implicit vertical diffusion & advection)
1786    o OBCS: extend application of tracer open boundary conditions
1787      to a strip beyond the boundary of width Olx/Oly
1788    o add call monitor to TAF set of required calls (flow directives)
1789      and include in natl_box_adjoint
1790    o untangle a few ifdefs related to cost, ctrl, autodiff
1791      untangel a few ALLOW_ECCO_OPTIMIZATION
1792    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1793      (theta2, salt2 in ecco_cost_weights)
1794    
1795    checkpoint56c_post
1796    o OBCS as control variables
1797      - update ctrl_ad_diff.list, obcs_ad_diff.list
1798      - remove balance of obcs controls from default
1799      - fix index bug nobcs in ctrl_init
1800      - fix dummy fields filen in ctrl_pack
1801      - add dummy weights for obcs
1802    o lsopt: comment out fort.94 output
1803    o optim:
1804      - remove unnecessary header files
1805      - adjusted namelists
1806      - add xerbla.F to Makefile
1807    o exf:
1808      - multiple modifications of exf_check_range
1809      - unit change in exf_init_runoff from [m/year] to [m/s]
1810    o mdsio:
1811      - i/o-vector change debugLevel from debLevA to debLevB
1812    
1813    checkpoint56b_post
1814    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1815      is called from DO_THE_MODEL_IO
1816      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1817      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1818      - clean up PTRACERS_WRITE_TIMEAVE a little
1819    o add another verification experiment that tests both the cfc-pkg and
1820      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1821      reactive tendencies treated inline with regular timestepping
1822    o testreport previously did a lousy job of comparing small numbers, so
1823      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1824      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1825      testreport.
1826    o ptracers_monitor: bug fix for MPI
1827    
1828    checkpoint56a_post
1829    o GCHEM: finish reorganizating the package
1830      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1831        (introduces another 3D-array for each passive tracer, but only if
1832        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1833        gchemTendency is not needed because the timestep is done separately)
1834      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1835      - GCHEM is now---more or less cleanly---separate from PTRACERS
1836      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1837        so clear to me how that should be done in a general way.
1838    o CFC: improve formatting of output in CFC_ATMOS
1839    o PTRACERS:
1840      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1841        that ALL experiments with ptracers enable can be checked. This makes
1842        GCHEM_MONITOR obsolete.
1843      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1844        monitorFreq
1845      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1846    o add PTRACERS (PTR0[1-5]) to testreport output
1847    o exf_check_range:
1848      * default changed to .TRUE.
1849      * will check values for niter0 if debLevA, every timestep if debLevB
1850      * STOP in exf_check_range if 'out of range'
1851      * range chosen generous to allow for potential extema
1852      TBD: a version with stricter range
1853           permitted range would be runtime parameters
1854    o GMredi:
1855      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1856      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1857      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1858    o GCHEM:
1859      - move call to GCHEM_FORCING_SEP, so that it is now called before
1860        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1861      - introduced a useGCHEM runtime flag and applied it everywhere.
1862      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1863        this flag is now only visible within GCHEM-pkg routines.
1864      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1865        be replaced by a 3D array that is computed before thermodynamics; for
1866        this, the tracer ID iTracer had to be included into the parameter list
1867        of ptracers_forcing
1868      - set up forward_step to call gchem_forcing, that will replace
1869        gchem_forcing_int in ptracers_forcing
1870      - cleaning up
1871    o small cleaning of exch2: remove files that are also in eesupp/src
1872    
1873    checkpoint56
1874    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1875    o mnc: cleanup "full" files--fixes out-of-memory problem
1876    o ECCO-GODAE
1877      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1878      * fully merged and updated from SIO code
1879        windstress sign change affects
1880        - exf_inscal_[u/v]stress
1881        - sign of xx_tau[u/v] adjustments
1882        - signs in cost_scat
1883      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1884      * natl_box_adjoint updated and compressed
1885      * 2-level checkpoint switch added
1886        (tested in EXP. 1 of natl_box_adjoint)
1887      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1888    o SVD
1889      * first complete, non-hacked version for SVD calculations
1890      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1891        performed via direct access files admtlm_vector.it????
1892        (via ctrl_[un]pack)
1893      * optimcycle is used for ARPACK iteration counter
1894        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1895      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1896        and add linear transforms where necessary
1897      * controls are initial/final SST, SSS (can be extended; need to check
1898        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1899    o mdsio: filename info to both stderr, stdout
1900    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1901      from sign change
1902    
1903    checkpoint55j_post
1904    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1905      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1906    o add consistent build directories and .cvsignore files to verification
1907    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1908    o make all subroutines 30 or less characters in length for certain older
1909      compilers to work (a thorough search only turns up two routines in
1910      pkg/ptracers)
1911    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1912      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1913    
1914    checkpoint55i_post
1915    o change arrays for total vertical diffusivity (2.D if explicit,
1916      3.D if implicit) ; each ptracer uses its own background value.
1917    o added mnc/NetCDF output capability to ocn_compon_interf
1918      - added bits to verification/cpl_aim+ocn so that it can run on
1919        ITRDA and other clusters without the mpirun "-wd" option
1920    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1921      configuration
1922    o give MNC the ability to create additional files rather than
1923      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1924      - the default is just less than 2GB which is a practical limit
1925        on many systems
1926    o Compute the non-local term using either KPP vertical diffusivity (=default)
1927       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1928    
1929    checkpoint55h_post
1930    o add verification test "vermix"
1931    o remove all the *_ioinc flags and replace with the single global
1932      outputTypesInclusive flag
1933    o allow to set a vertical profile of vertical diffusivity for T & S
1934    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1935    o useMNC moved from data.mnc to data.pkg
1936    
1937    checkpoint55g_post
1938    o Renaming carbon AD experiments to comply with testreport conventions
1939    o Updating adjoint of Held-Suarez hs94.1x64x5
1940    o Fixing directives for non-ECCO forward_step, after ECCO directives
1941      have been fixed to avoid recomp. of do_oceanic_phys
1942      Works well for global_ocean.90x40x15,
1943      but recomp. issue remains for carbon
1944    o Updating adjoint output for natl_box_adjoint after
1945      pkg/ecco has been modified (see taga c55d_post)
1946    
1947    checkpoint55f_post
1948    o rename to timeave_init_fixed
1949    
1950    checkpoint55e_post
1951    o some delicate re-shuffle of store directives to avoid one
1952      extra call of do_oceanic_physics
1953      affects ecco_the_main_loop.F, do_oceanic_physics.F
1954      checkpoint_lev1_directives.h
1955    o NB: this may break global_ocean adjoint temporarily,
1956      but it is clear how to fix it. Will do later, need this now.
1957    
1958    checkpoint55d_post
1959    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1960    o ecco_cost_weights is modified to 1x1 runs
1961    o modifs to allow observations to be read in as
1962      single file or yearly files
1963    o enable to read exf forcing fields as either
1964      single file or yearly files (flag useExfYearlyFields)
1965    checkpoint55d_pre
1966    
1967    o switch between 2-level and 3-level checkpointing
1968    o add ability of MNC to write local and "partial" (eg. 2D slices where
1969      the full 3D field is never actually stored) arrays to NetCDF files
1970      with the correct (that is, the complete multi-dimensional) set of
1971      array indicies
1972      - used in mom_vecinv() to write the diagFreq output
1973      - tested (demonstrated) in verification/aim.5l_cs
1974    o further mnc-ification
1975      - add verification/lab_sea to the list with mnc setups
1976      - fix undefined mnc v-names in cd_code
1977      - add kpp to mnc output (both snapshot and timeave)
1978    o non-hydrostatic code
1979      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1980        in calc_gw.F
1981      - defaults to viscAh
1982      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1983        friction or Leith) in non-hydrostatic mode, as long as there is
1984        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1985    o pkg/cost
1986      extend simple cost functions to treat time mean quantities
1987      (T,U,V) via cost_accumulate_state from cost_tile
1988    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1989        be 2 times larger than the minimum size the advection scheme requires.
1990        now get a perfect conservation of salt in advect_cs test-exp (updated)
1991    o GGL90 (Gaspar's TKE mixed layer)
1992      - add horizontal diffusion of TKE, requires exchanges in
1993        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1994        default. In OPA there is no horizontal diffusion of TKE but the
1995        mixing coefficients are computed from a horizontal average of TKE of
1996        6 points or so. I think that diffusion has a little more physical
1997        justification.
1998      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1999        was in vain)
2000      - mask tke-variable in ggl90_init
2001    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2002    o fix biharmonic diffusion on CS-grid.
2003    o more obcs stuff
2004      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2005        for reading boundary values. This routine is called from
2006        obcs_prescribe_read
2007      - updated obcs_check
2008      - changed sponge layer relaxation parameter units for days to seconds
2009      - turned off sponge layer by default
2010      - changed argument list of OBCS_CALC to myTime+deltaTclock
2011      - fixed about 35 bugs in obcs_external_fields_load
2012    
2013    checkpoint55c_post
2014    o obcs stuff
2015      - new runtime flags useOBCSprescribe, useOBCSbalance
2016      - re-arranged obcs_calc
2017      - moved exf_getobcs to obcs_prescibe_read
2018        obcs_prescibe_read is called after ORLANSKI stuff
2019        and independent of it (executable can contain all).
2020      - updated obcs_check
2021      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2022        These may be necessary only if tangential velocities are
2023        prescribed at OB, not sure, needs testing.
2024    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2025      which simplifies the calls and passes the ifc check-bounds test
2026    
2027    checkpoint55b_post
2028    o add a 2D scalar, Z location, exchange_2 routine.
2029    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2030      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2031      affects advect_cs results (for the wrong reason): update output.txt
2032    o use a more standard discretization for biharmonic viscosity ;
2033     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2034      affects results of dome set-up: update output.txt
2035    o fix gad_advection.F (CubedSphere part), back to version 1.23
2036    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2037    
2038    checkpoint55a_post
2039    o merged code to
2040      * prescribe/read time-dependent open boundaries
2041        (works in conjunction with exf, cal)
2042      * sponge layer code for open boundaries
2043      * each boundary N/S/E/W now has its own CPP option
2044        (healthy for the adjoint)
2045    
2046    checkpoint55
2047    o up-to-date adjoint of previous breaks
2048      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2049      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2050      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2051      - carbon: * remove tr1-related adjoint verification
2052                * add ptracer as control variable
2053    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2054      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2055    
2056    checkpoint54f_post
2057    o in verification/carbin/ remove experiment related to
2058      ALLOW_PASSIVE_TRACER (array tr1 etc)
2059      code_ad/ input_ad/ results_ad
2060    
2061    o add two new packages
2062      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2063        + subject to optimization (memory)
2064      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2065        + subject to reordering (many GOTOs in the original code)
2066        + so far opps is called for every (i,j) point, and then operates in
2067          the vertical; one may want to reorder the scheme in order operate in
2068          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2069          fields)
2070    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2071      - all verification tests compile and run with linux_ia32_g77
2072      - defaults are compatible with current input files--nothing
2073        should change if you were not previously using MNC
2074      - MNC output has been added in numerous places (eg. timeave)
2075        but there are still a few writes not yet do-able with MNC
2076        (this is in progress)
2077      - flags now allow for either/or/both use of MDSIO and MNC and
2078        documentation will soon follow
2079      - numerous small formatting cleanups for ProTeX
2080    o add version info (via BUILD_INFO.h) to MNC and stdout
2081    
2082    checkpoint54e_post
2083    o add two new packages
2084      - pp81 (Packanowski and Philander, 1981), Richardson number and
2085        stratification dependent mixing
2086      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2087      - these scheme operate in a similar manner as KPP (without ghat, of
2088        course), however there is only one diffusivity that is used for both
2089        temperature and salinity (and passive tracers)ç
2090    o add offline package
2091    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2092      provided by Stephanie Dutkiewicz
2093    o genmake2: add ability to search for C compilers and cleanup test output
2094      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2095    
2096    checkpoint54d_post
2097    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2098    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2099      leading to additional shift by 5 days each year of integration
2100       (i.e. leading to considerable offset over the years)
2101    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2102    o start with no AB and no initial filtering (staggerTimeStep):
2103      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2104    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2105      (external loading & cpl import/export stay in forward_step.F)
2106    o update coupling interface to work with new staggerTimeStep
2107    o change MDSIO ptracers_pickup.
2108    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2109    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2110    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2111    
2112    checkpoint54c_post
2113    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2114      this affects (truncation error) output.txt of test-exp:
2115       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2116    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2117    o change Qnet to always be the net heat flux, (+upward).
2118      affects (truncation error) output of natl_box exp.: updated
2119    o define the max number of passive tracers in PTRACERS_SIZE.h
2120    o start to test mnc routinely in exp0
2121    o add sea-ice loading (sIceLoad) as a new forcing field.
2122    
2123    checkpoint54b_post
2124    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2125       impressive on Altix and Opteron systems)
2126    o diagnostics can now write NetCDF files through the mnc package
2127    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2128    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2129    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2130      affects (truncation error) output of lab_sea & natl_box exp.: updated
2131    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2132    
2133    checkpoint54a_post
2134    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2135    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2136    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2137    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2138      + internal_wave (shift in writing cg2d_ini_res)
2139    checkpoint54a_pre
2140    
2141    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2142      - modified verification/lab_sea and natl_box_adjoint accordingly
2143    
2144    checkpoint54
2145    checkpoint53g_post
2146    o prepare splitting of thermodynamics: store convect.counter in common block
2147    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2148      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2149    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2150    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2151    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2152    o restore adjointability
2153    
2154    checkpoint53f_post
2155    o modifications that affect AIM experiment results (update output.txt):
2156      - no advection of S at top interface Nr (pkg/generic_advdiff)
2157      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2158    o AIM pkg:
2159      - include stability function into surf.Flux derivative relative to Tsurf
2160      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2161    
2162    checkpoint53e_post
2163    o merged cylindrical coord configuration
2164    o added rotating_tank experiment
2165    checkpoint53e_pre
2166    
2167    checkpoint53d_post
2168    o faulks upgraded: re-generate output.txt that have changed:
2169       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2170    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2171    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2172    o added Sadourny discretization of Coriolis
2173      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2174      - re-enabled use of omega3 (useAbsVorticity)
2175    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2176      vector-invariant equations
2177      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2178    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2179      hopefully without new bugs
2180      - still to do: biharmonic friction for non-hydrostatic w
2181    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2182    o regenerated output for global_ocean_ebm (using -ieee)
2183    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2184      of mom_common/
2185      - simple re-arrangement of instructions within computing loop
2186    checkpoint53d_pre
2187    
2188    checkpoint53c_post
2189    o new version of coupler for AIM+thSIce and Ocean models
2190     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2191     - land: change Evaporation of snow
2192     - aim with thSIce: fix bug in snow-precip.
2193    o changes to calc_gw.F
2194     - bug fix for w^2 term near the bottom boundary
2195     - (hopefully) improve the lateral slip boundary condtions for use with
2196        partial/looped cells
2197      - because the bug fix changes two verification experiments anyway (exp5
2198        and plume on slope), change the lateral boundary condition from half slip
2199        to the value of no_slip_sides
2200    o ebm package wasnt quite up to the parallel task. Fixed that.
2201    o Adjoint of EBM package + verification
2202      * TLM OK
2203      * ADM not sufficient accuracy yet (needs further testing)
2204    
2205    checkpoint53b_post
2206    o Commiting new energy balance model to repository
2207      * package is pkg/ebm
2208      * verif. is verification/global_ocean_ebm
2209      * references are in ebm_driver.F
2210    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2211    C        Global thermohaline circulation. Part I:
2212    C        Sensitivity to atmospheric moisture transport.
2213    C        J. Climate 12(1), 71-82
2214    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2215    C        Global thermohaline circulation. Part II:
2216    C        Sensitivity with interactive transport.
2217    C        J. Climate 12(1), 83-91
2218    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2219    C        Destabilization of the thermohaline circulation
2220    C        by atmospheric eddy transports.
2221    C        J. Climate 7(12), 1870-1882
2222    o Will need long integration testing.
2223    checkpoint53b_pre
2224    
2225    o created pkg/mom_common in preparation for variable viscosity code
2226    o renamed and split ini_mnc_io
2227    o pkg/land: only liquid water can diffuse or run-off
2228    o AIM using land: soil wetness availability account for snow
2229    o added printMapIncludesZeros to EEPARMS namelist
2230    
2231    checkpoint53a_post
2232    o restore TAMC compatiility for exf_constants.h
2233      (no usage of _d in .h)
2234    o Additional storing in KPP in an attempt to fix
2235      TAMC problem with adjoint of KPP code.
2236      (no success...)
2237      Identical code works fine with TAF.
2238    o Fixed verification/natl_box_adjoint experiments.
2239      Initial conditions for Experiments 4 and 5 are now
2240      set to "SEAICE_initialHEFF=0", which is more reasonable,
2241      and hence gives results closer to that of Experiment 2.
2242      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2243    
2244    checkpoint53
2245    o stable checkpoint with up to date adjoint
2246      TLM tests only run for 1st grdchk at the moment. Its unclear if
2247      this is a code problem or a problem with resetting code for g_
2248      variables that is being autogenerated wrong.
2249      Otherwise:
2250       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2251       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2252         are both still in chaos following their security messes.
2253    
2254    checkpoint52n_post
2255    o various build (mostly genmake2) changes including:
2256      - ability to build/run more easily within Cygwin and MacOS X
2257      - more complicated Makefiles with a stronger dependence on Gnu Make
2258    o pkg/seaice modifications
2259      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2260        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2261        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2262      - changed proxy for geostrophic velocity and updated
2263        verification/lab_sea/results/* accordingly
2264      - removed ADI dynamic solver from pkg/seaice
2265      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2266        they caused a segmentation fault under certain circumstances
2267      - removed unused field WATR
2268    o bug fix in exf-package:
2269      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2270         now reflect that.
2271    o small fixes in the cal-package:
2272      - set reference date to first of January for the 'model'-calendar
2273      - failing of cal_CheckDate in cal_FullDate now actually results in a
2274        warning
2275    o small modifications in exf-package to increase flexibility:
2276      - change climtempfreeze from a constant to a runtime parameter that
2277        is specified in data.exf_clim (default = -1.9)
2278      - introduce runtime parameter windstressmax (default = 2.0) that is
2279        specified in data.exf
2280    o fix in pkg/thsice:
2281      - update Evap (Tsf changes) to be consistent with Latent heat flux
2282      - maintain snow precipitation unchanged (even if Tsf >=0).
2283     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2284    
2285    checkpoint52m_post
2286    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2287      this does not change any of the results, because myIter=0 in swfrac always
2288      lead to jwtype=2 (the default anyway), but the call makes little sense
2289      as a default
2290    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2291    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2292      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2293    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2294    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2295    o extending useSingleCpuIO option to work with new exch2 I/O format
2296      - old-style, missing-tile I/O is still accessible by defining CPP
2297        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2298    o monitor package can write to NetCDF files and/or STDOUT
2299    o fix re-definition bug in MNC_GRID_INIT_ALL()
2300    o doc/api_reference added
2301      - a framework for building an API Reference Manual using all
2302        the "protex" comments embedded in the code
2303      - see pkg/generic_advdiff, pkg/mnc for examples
2304    o MNC:
2305      - make myThid the last argument for all subroutines
2306      - new default for the grid files: NO halos
2307      - add useMNC and other run-time flags
2308      - separate per-file-group handling of the unlimited dimension
2309      - early initialization of MNC w/ flags read at the eeboot stage
2310        and lookup tables set in initialize_fixed
2311      - write all MNC output to a freshly-created directory
2312    o thermodynamics sea-ice (thsice) is now tested with testreport.
2313    o test exp. advect_cs: use the standard cs32 grid ; update output.
2314    o Added functionality to grdchk:
2315      pick global i,j,k position (or nearest wet) where to perform check.
2316    
2317    checkpoint52l_post
2318    o new land formulation:
2319      a) use ground enthalpy as prognostic variable to ensure exact
2320         energy conservation.
2321      b) account for water temperature and for latent heat of freezing
2322         in all processes (rain, run-off, ground storage)
2323      c) compute surface and ground temperature implicitly.
2324    o aim_v23 modification for new land model:
2325      a) Treat separately land / ocean / sea-ice surface fluxes
2326         to allow implicit computation of land & sea-ice surface temp.
2327      b) add snow precipitation.
2328    checkpoint52l_pre
2329    
2330    o fix problem (when 1 tile is empty) in min/max monitor.
2331    o fix bug in timeAve (u,vZetatave in common block)
2332    o no restoring terms under ice for pkg/seaice
2333    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2334    o bug fix for pkg/seaice pickups
2335    o change MNC call locations and add coordinate attributes
2336    o mask vorticity at the corner ; affects global_ocean.cs output
2337    o fix ini_curvilinear_grid ; test CS experiments with mpi
2338    o aim.5l_cs: modify sea-ice fraction input file ; update output
2339    o exf: Adding simple range check routine for exf fields after read
2340    
2341    checkpoint52k_post
2342    o removed top-level directory "diags"
2343      - we migrated these functions to pkg/timeave a long time ago
2344    o fixed bug introduced in pkg/monitor
2345    o accuracy ctrlprec = 32 insuffient for gradient checks using
2346      averaged fields (I/O via cost_averages)
2347      -> use ctrl.h in active_file*.F to control I/O precision.
2348    o paramter list of CALL ADTHE_MAIN_LOOP
2349    o added initial do_the_model_io to ecco
2350    o set all ...Freq to zero after cost_final
2351      taveFreq, dumpFreq, pChkptFreq
2352    o MAIN and ECCO differentiability restored
2353    
2354    checkpoint52j_post
2355    o fix nchklev in tamc.h for global_ocean...
2356    o Bringing flow and store directives up-to-date
2357    o Really weird thing!
2358      call do_the_model_io from the_main_loop with parameters
2359      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2360      TAF places a faulty re-call of initialise_varia
2361      after cost_final call which should not be there!
2362    checkpoint52j_pre
2363    
2364    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2365      error messages
2366    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2367    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2368      debug output
2369    o modfied mdsio_writefield.F to handle non-global files under exch2
2370    o update AIM Cubed-Sphere exp (aim.5l_cs):
2371      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2372    o update AIM Equatorial Channel exp:
2373      use standard aim_v23 pkg and change the SST fields to be more realistic.
2374    o globalFile now works with exch2
2375    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2376      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2377    o limit timeave output for hi-res integrations
2378    
2379    checkpoint52i_post
2380    o removed CPP_EEOPTIONS.h from verification/*/code
2381    o updated the tiling for global_ocean_pressure
2382    checkpoint52i_pre
2383    
2384    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2385      the old pkg/aim).
2386    
2387    checkpoint52h_pre
2388    o shortened offending lines in exch2_send_rx?.template
2389    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2390    o genmake2: add build & execute test for NetCDF code
2391    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2392      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2393    o added useSingleCPUIO flag to monitor.F and mon_out.F
2394    o added temporary hack for sea-ice dynamics on the cube:
2395      metric terms are ignored and it is assumed that
2396      there is no sea-ice on cube faces 1, 2, 4, and 5.
2397    
2398    checkpoint52f_post
2399    o added exch2 cube routines to pkg/exch2
2400    o modified hs94.cs-32x32x5 to use it
2401    o added new grid files to hs94.cs-32x32x5
2402    checkpoint52f_pre
2403    
2404    checkpoint52e_post
2405    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2406      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2407    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2408      to work with implicit vertical advection and AB ;
2409    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2410    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2411     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2412    checkpoint52e_pre
2413    
2414    o fix bug in impldiff when Nr=1 or Nr=2.
2415    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2416    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2417    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2418      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2419    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2420    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2421    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2422    
2423    checkpoint52d_post
2424    o re-tiled many expts to allow comparison in multi-processor mode
2425      - updated output accordingly
2426      - changed hs94.128x64x5 to use intial T from file rather than use the
2427        random number generator
2428    o add infrastructure in model routines for fizhi and gridalt packages
2429    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2430    o changes to permit hi-res, cubed-sphere, configuration
2431      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2432      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2433      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2434        of surface winds for the cube
2435      (A verification experiment, based on global_ocean.cs32x15, but with
2436       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2437       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2438       complete with example surface forcing files and matlab scripts to look
2439       at the output and compare it with that of global_ocean.cs32x15.)
2440    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2441       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2442       to conform to the common rule.
2443    o check-in the first version of the coupler + interfaces for multi-components
2444       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2445       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2446       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2447       - ocean and atmos. share the same horizontal grid (no interpolation).
2448       - exchanges between component and coupler is done in forward_step
2449    o new verification experiment, cpl_aim+ocn:
2450       coupled ocean - AIM atmosphere on cs32 grid.
2451    
2452    checkpoint52d_pre
2453    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2454    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2455    
2456    checkpoint52c_post
2457    o Fixing OPTIONS files for use of exf:
2458      - ALLOW_ECCO not needed
2459      - ECCO_CPPOPTIONS.h should not be included from
2460        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2461        as has been the case in the past
2462      - All cal/exf related options are currently set in
2463        single header file. Should remain so until we
2464        agree on a consistent new policy.
2465    o Removed all CPP options for cal package.
2466      cal has no more CPP options.
2467    o modified STOREs in GAD_ADVECTION
2468    o corrected key comp. for passkey
2469    
2470    checkpoint52b_post
2471    o new version: "thsice" of thermodynamic sea-ice pkg:
2472     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2473     - modify fluxes but do not change theta directly;
2474     - light cleaning of bulk_force pkg (still needed with thsice).
2475     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2476       + output_thsice.txt to test thsice & bulk_force pkgs.
2477    o put back grid & coriolis monitor output.
2478    checkpoint52b_pre
2479    
2480    o call "do_the_model_io" at the beginning (=> dump initial state)
2481    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2482    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2483      (need info on NUMBER_OF_PTRACERS)
2484    o missing PTRACERS headers in some routines
2485    o default tamc.h in pkg/autodiff supposed to crash
2486      to ensure proper customization
2487    
2488    checkpoint52a_post
2489    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2490      - moved surfaceTendencyTice from pkg/seaice to main code
2491      - subroutine FREEZE_SURFACE now limits only surface temperature
2492        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2493        => new output.txt for global_ocean.cs32x15 & global_with_exf
2494      - keep the old version of FREEZE for backward compatibility;
2495        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2496      - corresponding modifs for TAF directives
2497    o added surface flux output variables to TIMEAVE_STATVARS
2498    o time-averaged output for pkg/ptracers
2499    o fix problem with ECCO-related divided adjoint
2500      snapshot file was missing some ad-variables,
2501      but no warning issued by TAF
2502    
2503    checkpoint52a_pre
2504    o some bug fixes for #undef REAL4_IS_SLOW
2505    
2506    checkpoint52 = ecco_c52_e35
2507    o after testing adjoints of checkpoint51u_post
2508    
2509    checkpoint51u_post
2510    o this is the post-merge tag of the ecco-branch
2511      (needs another clean checkout and re-testing)
2512    o various natl_box_adjoint configs and results
2513      but no input fields
2514    o obcs adjoint not yet merged!
2515    o adding ECCO global 1x1 and 2x2 degree configs
2516    o updated/extended some store directives for seaice
2517    o pkg/ecco now containes ecco-specific part of cost function
2518    o top level routines the_main_loop, forward_step
2519      supersede those in model/src/
2520      previous input data.cost now in data.ecco
2521      (new namelist ecco_cost_nml)
2522    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2523    
2524    checkpoint51t_post
2525    o this is the pre-merge tag of the ecco-branch
2526    
2527    checkpoint51s_post
2528    o cleanup: removed various obsolete #define-s
2529    o pkg/grdchk
2530      - renamed 'ph-grd 3' to 'grad-res'
2531      - merged from ecco-branch
2532        (remaining bug fixes for obcs gradient checks)
2533      - additional high-precision output for testreport
2534        (grep for 'precision_grdchk_result')
2535    
2536    checkpoint51r_post
2537    o cleaned up or removed CPP_OPTIONS.h files
2538    o updated results for some of the tests to reflect the new
2539      optfiles (-ieee: -O0 instead of -O3)
2540    
2541    checkpoint51q_post
2542    o cd_code:
2543      - moved cd_scheme.F -> cd_code_scheme.F
2544      - separate read_checkpoint from cd_code_ini_vars.F
2545      - separated cd_code part from write_checkpoint
2546      - updated AD_SOURCE, generated .flow
2547      - added CD_CODE_VARS.h to the_main_loop
2548      - Moving cd_code specific store dir.s to pkg/cd_code
2549    o ctrl package totally restructured
2550      - pack/unpack now optional and decoupled from
2551        xx_/adxx_ I/O
2552      - ctrl_pack/unpack cleaned
2553        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2554      - confined inclusion of AD_CONFIG.h to where necessary.
2555    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2556    
2557    checkpoint51p_post
2558    o create initial cd_code package
2559      - WARNING: the initialization of fields within packages
2560        is broken because INI_FIELDS (where READ_CHECKPOINT is
2561        called) is called *before* PACKAGES_INIT_VARIABLES.
2562        This seems to be backwards since
2563        1) its important to initially zero the entire field including
2564           the "halo" region
2565        2) zeroing needs to be done *before* reading pickup info
2566           and the pickup call might or might not happen in any
2567           particular run
2568      - this needs an overhaul for R2
2569    o cleanup verification/*/code/GMREDI_OPTIONS.h
2570    o cleanup testreport
2571    
2572    checkpoint51o_post
2573    o bringing AD-related verif's up to date with genmake2
2574      - carbon/
2575      - global_ocean.90x40x15/
2576      - hs.94.1x64x5/
2577      - (front_relax/ )
2578    o (more) consistent directory structure for AD-related verif.'s
2579    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2580    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2581    o bug fix in find_alpha.F for MDJWF:
2582      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2583        change rho -> rho-rhoConst
2584      - replace call find_rho to find_rhonum
2585    o initialisation of rFlx extended to full array (required by TAF)
2586      and shifted to thermodynamics
2587    o removed PTRACERS.h in ptracers routine
2588    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2589    o Correcting initialisations for fVerU, fVerV.
2590    o helping TAF to recognize dependency on kUp for
2591      fVerU, fVerV
2592    o Replacing delZ by delR in pkg/ctrl/
2593    checkpoint51o_pre
2594    
2595    o undid all of cp51 pending some cleanups and discussion
2596    o added the [#include "AD_CONFIG.h"] statement to all files that need
2597       it for adjoint/tl #defines
2598     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2599     o removed tools/genmake since it no longer works
2600    
2601    checkpoint51n_post
2602    o modifications to make FREEZE flux visible to pkg/kpp
2603      - moved surfaceTendencyTice from pkg/seaice to main code
2604      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2605      - subroutine FREEZE now limits only surface temperature
2606        (this means new output.txt for global_ocean.90x40x15,
2607         global_ocean.cs32x15, and global_with_exf)
2608    o added surface flux output variables to TIMEAVE_STATVARS
2609    
2610    checkpoint51n_pre
2611    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2612    o added [#include "AD_CONFIG.h"] to all files that use the following
2613      defines:
2614      - ALLOW_ADJOINT_RUN
2615      - ALLOW_TANGENTLINEAR_RUN
2616      - ALLOW_ECCO_OPTIMIZATION
2617    
2618    checkpoint51m_post
2619    o incorporating changes to get TAMC/TAF working in genmake2
2620      - added new TAMC/TAF targets to the Makefile
2621      - various cleanups related to package handling
2622      - these changes should have no impact on the forward model
2623    
2624    checkpoint51l_post
2625    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2626     - faster algorithm for cal_addtime.F
2627     - higher precision arithmetic, where needed
2628     - pkg/exf *startdate variables changed from calendar date to
2629       model integration time
2630    
2631    checkpoint51l_pre
2632    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2633    o enable to apply restoring on S & T only in a latitude band.
2634    o update output (external_forcing_surf modif. change truncation errors)
2635       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2636    
2637    checkpoint51k_post
2638    o change default to: useNHMTerms=.FALSE.
2639     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2640       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2641     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2642        exp1, ideal_2D_oce
2643     - change data file of oceanic exp (leave the results unchanged for now)
2644       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2645    o set gravitySign automatically according to the vertical coordinate used
2646      (and change sign: back to "logical" value: +1 when R increases downward)
2647    o added an include barrier to the default CPP_OPTIONS.h and
2648      removed the #include "PACKAGES_CONFIG.h" from it
2649    o fix a bug in mom_fluxform (from chk51j_post)
2650    
2651    checkpoint51j_post
2652    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2653    o adjusted some flow directives (dynamics, thermodynamics)
2654    o added cubed-sphere case to test cost function
2655    o heckpoint_lev?_directives.h now include
2656      pkg-specific directives, whenever those are enabled.
2657    o Moving pkg-specific flow directives to corresponding pkg
2658      Moving pkg-specific differentiation list to corresponding pkg
2659      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2660      ---> conventions are
2661           - pkg_ad.flow
2662           - pkg_ad_diff.list
2663           - pkg_ad_check_lev?_dir.h
2664    
2665    checkpoint51i_post
2666    o merge of the branch-genmake2
2667      - knowingly breaks the older genmake
2668      - automatic generation of all ALLOW_${PKG_NAME} defines
2669      - new testreport supersedes older testscript
2670    o large number of package inclusion and header cleanups
2671    checkpoint51i_pre
2672    
2673    o new output for adjoin of global ocean vector invariant
2674    o fix for checkpoint of thermodynamic seaice and bulk_force
2675    o Steph gchem various cleanups
2676    
2677    checkpoint 51h_pre
2678    o fixed some single quotes
2679    o modify gchem pkg to be more versatile
2680    o modifications to clean up dic pkg
2681    o add pkg/cfc
2682    
2683    checkpoint51g_post
2684    o provide links for ARPACK and ADM*TLM
2685    o start removing verification/vero/
2686    o update AD-related stuff
2687      (in particular some IF-statements in model/src/ routines)
2688    o adding to verification/global_ocean.90x40x15/ adjoint of
2689      vector invariant setup
2690    
2691    checkpoint51f_post
2692    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2693    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2694      of tracer Green's fucntions for ocean inversion project.
2695    
2696    checkpoint51f_pre
2697    o Added on-the-fly spatial interpolation capability
2698        "USE_EXF_INTERPOLATION" to pkg/exf.
2699      - This is a temporary Cartesian-grid hack until
2700        the super-duper ESMF coupler becomes available.
2701      - See verification/global_with_exf/README for usage example.
2702      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2703        flags and modified pkg/seaice accordingly.
2704    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2705        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2706        non-local transport term.
2707    
2708    checkpoint51e_post
2709    o pkg/mom_vecinv:
2710      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2711      - add time-ave diagnostic of vorticity advection.
2712    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2713    o atmospheric geopotential: - include water vapor effect;
2714                                - use p^kappa in p* scaling.
2715    o land pkg: read initial state from files.
2716    o AIM : add stratospheric drag in the upper level
2717    
2718    checkpoint51d_post
2719    o change function ILNBLNK (=> last non-blank char.) to return zero
2720      (instead of the string length) when the string. char is empty
2721    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2722    o modif's to restore TAMC compatibility
2723      - avoid "_d" constructs in PARAMETER declarations
2724      - avoid interrupting lines by comment lines
2725    o Use cluster local disks for purely local I/O
2726      vs. globally visible disks needed for ctrl stuff
2727      (merged from ecco-branch)
2728      - new active_file_loc... and mdsio_..._loc routines
2729      - affected packages: autodiff, ctrl, grdchk, mdsio
2730    
2731    checkpoint51c_post
2732    o introducing integer flag debugLevel
2733      - debLevZero: suppress all output
2734      - debLevA: standard
2735      - debLevB: equivalent to current debugMode=.TRUE.
2736    o introducing pathname variable mdsioLocalDir for mdsio
2737      that can be specified at runtime
2738      (relevant for cluster I/O to local disk)
2739    `
2740    >>>checkpoint51b_post
2741    adjoint of ptracers
2742    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2743    o extended state in checkpoint_lev?, etc.
2744    o alternative ctrl/cost with tr1 or ptracer
2745    o new comlev1_bibj_ptracers
2746    o new ptracers.flow
2747    o made ptracers_forcing same as external_forcing_s
2748    o added verification for adjoint with ptracers
2749      - adm. grdchk fail so far
2750      - tlm. grdchk OK
2751      - checked tapelev/comlev recomputations: OK
2752    <<<checkpoint51b_pre
2753    
2754    checkpoint51a_post
2755    o added code for biogeochemistry package
2756      - new pkgs: dic, gchem
2757      - new subroutine in ptracers
2758    o modify code for biogeo packages
2759      - in model/src and pkg/ptracers
2760    
2761    checkpoint51
2762    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2763      - autodiff, ctrl, exf, grdchk, seaice
2764      kept separate packages
2765      - cost, ecco, obcs
2766    o updating verification/internal_wave, verification/lab_sea
2767      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2768    
2769    checkpoint50i_post
2770    o Preparing next differentiable checkpoint and sync
2771      of MAIN vs. ecco-branch
2772      - 1st step: this one is differentiable
2773      - 2nd step: next(! not this) checkpoint will have updated packages
2774                  from ecco-branch)
2775    
2776    checkpoint50h_post
2777    o new package "land": provide surface BC for AIM.
2778    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2779    o AIM: use true log-P extrapolation for near surface temp (= as in
2780        F.Molteni paper) ; update aim.5l_cs output.
2781    o New variable in PARM03 for more flexible pickups
2782    o somewhat cleaned package initialisation sequence for
2783      ctrl/ cost/ ecco/ in packages_... routines
2784    
2785    checkpoint50g_post
2786    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2787      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2788      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2789        made the default because of faster convergence than ADI
2790    
2791    checkpoint50f_post
2792    o exf totally restructured
2793      - replaced all exf_set_ routines by one generic exf_set_gen.F
2794        and made sure it's still differentiable
2795      - split exf_getffields.F into new exf_bulkformulae.F
2796      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2797      - updated adjoint/makefile and relevant verif. accordingly
2798    
2799    checkpoint50f_pre
2800     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2801          + change Evap over land. (update aim.5l_cs output)
2802     o added missing .cvsignores and made uniform across expts
2803     o changed configuration of tidal_basin_2d expt
2804     o added pkg/debug functions for tracing code in fatal crashes
2805     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2806     o new fn in pkg/monitor to stop model if solution grows too big
2807     o removed lots of single quotes from comments
2808    
2809    checkpoint50e_post
2810    o make KPP work with PTRACERS
2811     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2812       nearly a copy of kpp_transport_s
2813     - there is no analogue to SurfaceTendencyS, so I have to use
2814       gPtr(of the surface layer) instead
2815    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2816    checkpoint50e_pre
2817    
2818    checkpoint50d_post
2819    o change kpp output from multiple-record state files to single-record state
2820      files analogous to write_state.F
2821    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2822      analogous to the cg2d-related output.
2823    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2824      so that writing to internal file fn (with length 512) fails.
2825    checkpoint50d_pre
2826    
2827    checkpoint50c_post
2828    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2829    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2830    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2831    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2832    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2833    
2834    checkpoint50c_pre
2835    Merging from release1_p13:
2836    o bug fix for pkg/seaice dynamic solver
2837    o Added SEAICE_initialHEFF to pkg/seaice
2838    
2839    checkpoint50b_post
2840    o store u*,v* in gU,V instead of in guNm1,gvNm1
2841    o in order to put the momForcing out of the Adams-Bashforth:
2842      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2843      to timestep.F
2844    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2845    o re-generate output for highly sensitive test-exp:
2846       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2847    
2848    checkpoint50b_pre
2849    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2850    o corrected CPP option mismatch in exf_Bulk... functions for case
2851      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2852    
2853    checkpoint50a_post
2854    o Bug fix for merging between c50 and KPP.
2855      ikey was passed from thermodynamics to kpp_calc via
2856      common block rather than being recomputed in kpp_calc,
2857      in contradiction with new key itdkey.
2858      New key ikppkey created, and tamc.h headers updated.
2859    
2860    checkpoint50
2861    - 2nd step of merge with ecco-branch:
2862      merge changes in ecco-branch back into main trunk
2863    - bug fix in find_alpha
2864    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2865    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2866    - merged some sliced AD support routines
2867    
2868    checkpoint49
2869    merged from ecco-branch:
2870    o exf:
2871      - Enable initialisation of forcing fields to constant
2872        (runtime) values.
2873      - in exf_getffields.F
2874        Reduce i-/j-loop to interior domain, discarding overlaps.
2875        That also fixes wrong TAF-key computations for key_1, key_2
2876        with bulf formulae.
2877      - exf_init.F modify #ifdef for exf_init_evap
2878      - exf_getffieldrec.F, ctrl_getrec.F
2879        The following INT-usages are not safe:
2880          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2881          fldcount = int(fldsecs/fldperiod) + 1
2882        and were modified.
2883    o autodiff: checkpoint_lev...
2884      - updated storing for bulk formulae (some arrays were missing)
2885      - added state for seaice package
2886      - synchronized with main branch
2887    o DIVA:
2888      Modif.s in
2889      - the_main_loop.F
2890      - the_model_main.F
2891      and added cost_final_restore.F cost_final_store.F
2892      o With these changes, it is possible to fully separate
2893        the first forward run to compute the cost function (mdthe_main_loop)
2894        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2895        into separate model executions.
2896        This enables better tuning of DIVA to given queue sizes.
2897      o Loss of cost function value in consecutive DIVA runs is
2898        fixed by storing to 'costfinal' file.
2899      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2900        beginning/end of adjoint integration is accounted for.
2901      The current changes apply to TAF-1.4.26.
2902      TAF has one remaining bug, requiring one manual change
2903      (see MITgcm manual).
2904    o cal: synchronized between MAIN and ecco-branch
2905    
2906    checkpoint48i_post
2907    o Changes to restore differentiability of code w.r.t. previous tag
2908      (mostly adding new routines to make list and replacing
2909      pressure by totPhiHyd).
2910    o Updated and merged grdchk package
2911      - has both ADM and TLM checks
2912      - works for single- and multi-proc.
2913      - output cleaned
2914      - worked successfully for parallel DIVA
2915    o genmake:
2916      - Adding -platform=SP4
2917      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2918    o Modif. for DIVA:
2919      ctrl_unpack should not be called in intermediate DIVA interval.
2920      (similar thing would apply for active files such as
2921      tbar, sbar, psbar, which should not be reinitialised;
2922      only relevant for ecco-branch)
2923    
2924    checkpoint48h_post
2925    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2926    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2927    o Added SEAICE_initialHEFF to pkg/seaice
2928    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2929    
2930    checkpoint48g_post
2931    --- EOS:
2932    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2933      store total Potential in totPhyHyd for diagnostics & EOS.
2934    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2935    --- Pressure/geopotential gradient:
2936    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2937    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2938      ( changes results of global_ocean_pressure )
2939    o NLFS + z-coord.: add eta*Rho' contribution.
2940    o accurate phiHyd when using interface-W at the middle between 2 centers
2941     ( changes results of ideal_2D_oce )
2942    o includes r* 2nd term in potential gradient.
2943    
2944    checkpoint48f_post
2945    Merging from release1_p12:
2946    o Modifications for using pkg/exf with pkg/seaice
2947      - improved description of the various forcing configurations
2948      - added basic radiation bulk formulae to pkg/exf
2949      - units/sign fix for evap computation in exf_getffields.F
2950      - updated verification/global_with_exf/results/output.txt
2951    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2952      (SBO) core products, including oceanic mass, center-of-mass,
2953      angular, and bottom pressure (see pkg/sbo/README.sbo).
2954    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2955      to avoid negative values in shallow regions.
2956      - updated verification/natl_box/results/output.txt
2957      - updated verification/lab_sea/results/output.txt
2958    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2959    o Added useSingleCpuIO option (see PARAMS.h).
2960    o Updated useSingleCpuIO option in mdsio_writefield.F to
2961      work with multi-field files, e.g., for single-file pickup.
2962    o pkg/seaice:
2963      - bug fix in growth.F: QNET for no shortwave case
2964      - added HeffFile for specifying initial sea-ice thickness
2965      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2966    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2967      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2968    o pkg/seaice:
2969      - adjoint-friendly modifications
2970      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2971    
2972    checkpoint48e_post
2973    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2974    o dynamics: change definition of computational domain & adapt mom_fluxform
2975      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2976    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2977        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2978        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2979        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2980        inverted_barometer solid-body.cs-32x32x1
2981      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2982    
2983    checkpoint48d_post
2984    o in preparation for r*:
2985     a) use pre-computed gradient of hydrostatic potential:
2986        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2987     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2988        => affects results of glob_oce_pressure (different truncation error)  
2989      update output.txt of ideal_2D_oce & global_ocean_pressure
2990    
2991    checkpoint48d_pre
2992    o in preparation for r*:
2993      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2994      pass the 2 comp. of the grad. as arguments to momentum S/R.
2995      but for the moment, only used if it does not change the results.
2996    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2997    
2998    checkpoint48c_post
2999    Modifications in treatment of initial flux forcing controls
3000    to avoid extra storing of flux fields.
3001    
3002    checkpoint48c_pre
3003    o Added tidal_basin_2d experiment (currently 1D!)
3004    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
3005    
3006    checkpoint48b_post
3007    o r* coordinate added in #ifdef NONLIN_FRSURF block.
3008     (modification to pressure gradient not yet implemented)
3009    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
3010      (for U & V) that are used for vertical advection of momentum.
3011    
3012    checkpoint48a_post
3013    o In preparation for r*, use temp. array to compute vertical transport
3014       in flux-form momentum pkg. => change results of few test-exp.
3015      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
3016                        lab_sea, natl_box & plume_on_slope
3017    
3018    checkpoint48
3019    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
3020    
3021    checkpoint47j_post
3022    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
3023    o moved adexch from forward_step to addummy_in_stepping
3024    o added exch in ctrl_map_...
3025    o aveFreq.=0. at end of cost_final to avoid overwrite in
3026      reverse checkpointing loop
3027    o Yet more changes in gmredi:
3028      * adgmredi_calc_tensor
3029        avoiding all recomputation of gmredi_slope_limit
3030      * adgmredi_x/y/rtransport
3031        added flag for excessive storing to avoid recomp. of
3032        u/v/rtans, dTdx/y/z
3033        -> this is not really necessary and very memory-consuming
3034      * adgmredi_slope_psi:
3035        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
3036      * gmredi_slope_limit
3037        re-activated full calculation of taperfct for case 'ac02'
3038    o updating verification/ adjoints of carbon, global_ocean.90x40x15
3039    
3040    checkpoint47i_post
3041    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
3042    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
3043      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
3044    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
3045    o gmredi: fix few bugs.
3046    
3047    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
3048    This will be a good checkpoint to plug into the ecco-branch.
3049    o few modif.'s to get latest version adjointed
3050      (mainly kick out code in ini_linear_phisurf)
3051    o modif's to run adjoint with exactConserv
3052    o case GM_BOLUS_ADVEC should be cleaned
3053      S/R gmredi_slope_psi should be cleaned
3054    o verification/carbon now has exactConserv=.TRUE.
3055    
3056    checkpoint47g_post
3057    o time-average AIM output: becomes independent from statvars time-average
3058      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
3059    o After TAF bug fix:
3060      Tested adjoint of gmredi package.
3061      Tests were done with checkpoint47 rather than with latest
3062      checkpoint47f_post since the latter is broken for the adjoint
3063      verification/carbon/ contains both ADM and TLM gradient checks.
3064    Here they are, before they get changed/lost/stolen.
3065    Mostly modif.'s to fix numerical sensitivities.
3066    Gradient checks OK for
3067    - GM_taper_scheme:
3068      * clipping
3069      * ac02
3070      * linear
3071      * glw91
3072      * dm95
3073      * ldd97
3074    - GMREDI_OPTIONS:
3075      * GM_VISBECK_VARIABLE_K
3076      * GM_NON_UNITY_DIAGONAL
3077      * GM_EXTRA_DIAGONAL
3078      * GM_BOLUS_ADVEC
3079    in conjunction with data.gmredi parameters to be checked in
3080    in a few minutes under verification/carbon/code/
3081    
3082    checkpoint47f_post
3083    Merging from release1_p10:
3084    o modifications for using pkg/exf with pkg/seaice
3085      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
3086        and SEAICE_EXTERNAL_FLUXES
3087      - pkg/exf CPP options EXF_READ_EVAP and
3088        EXF_NO_BULK_COMPUTATIONS
3089      - usage examples are Experiments 8 and 9 in
3090        verification/lab_sea/README
3091      - verification/lab_sea default experiment now uses
3092        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
3093    
3094    checkpoint47e_post
3095    o created a tag prior to creating a branch
3096    
3097    checkpoint47d_post
3098    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
3099      at the bottom boundary had an erroneous half slip boundary condition
3100    o added bottom drag and no slip boundary condition capabilities to
3101      oceanic pressure coordinates code
3102    o added new verification experiment global_ocean_pressure, this experiment is
3103      also described in the tutorial section of the manual
3104    checkpoint47d_pre
3105    
3106    checkpoint47c_post
3107    o Added a verification experiment for a global cubed-sphere ocean run
3108      -  verification/global_ocean.cubed32x32x30
3109      -  uses pkg/therm_seaice and pkg/bulk_forcing
3110    
3111    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
3112    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
3113      when using P-coordinate; only implemented for atmospheric config.
3114    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
3115      NOTES: requires option NONLIN_FRSURF to be "#define".
3116    o update advect_xz/results/output.txt (left from checkpoint44g_post)
3117    
3118    checkpoint47b_post
3119    Merging from release1_p9:
3120    o pkg/seaice
3121      - removed GOTO's and added taf directives
3122      - double precision constants to reduce the g77 (Linux)
3123        to F77 (SGI) differences reported in release1_p8
3124    o tools/genmake
3125      - added SGI options
3126    o verification/testscript
3127      - updated to that of checkpoint47a_post
3128    o verification/global_ocean.90x40x15/input/eedata
3129      - modified for SGI f77 compatibility
3130    o verification/lab_sea
3131      - added description of sea-ice model
3132      - added missing matlab routines
3133      - added test of thermodynamics parallelization
3134    
3135    checkpoint47a_post
3136    o new pkg: aim_v23
3137     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
3138       for now, keep the same surface forcing as before.
3139     - Part-Cell implemented into AIM; check that Heat & Water are conserved
3140     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
3141     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
3142    o add diagnostic of surface correction term in monitor output
3143    
3144    o bulk_force and therm_seaice
3145    - Two packages:  bulk_force (Bulk forcing)
3146      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
3147    - Earlier integration from Stephaine Dutkiewicz
3148      and Patrick Heimbach.
3149    - Two ifdef statements for compile time,
3150       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
3151    
3152    checkpoint47
3153    differentiable version of checkpoint46n_post
3154    o bug fix in quasihydrostaticterms
3155    o * "clean" adjoint code (in terms of extensive recomputations)
3156        can now be obtained for all GMREDI options (i.e. for
3157        - GM_VISBECK_VARIABLE_K
3158        - GM_NON_UNITY_DIAGONAL
3159        - GM_EXTRA_DIAGONAL
3160        - GM_BOLUS_ADVEC )
3161      * However, wrong gradient check problem remains unsolved.
3162      * New CPP options have been introduced for different
3163        tapering schemes
3164    o external_fields_load now part of differentiation list
3165    o pressure needs multiple storing;
3166      would be nice to have store_pressure at beginning or
3167      end of forward_step, e.g. by having phiHyd global (5-dim.)
3168      (NB: pressure is needed for certain cases in find_rho,
3169      which is also invoked through convective_adjustment).
3170    o recomputations in find_rho for cases
3171     'JMD95'/'UNESCO' or 'MDJWF' are OK.
3172    o #define ATMOSPHERIC_LOADING should be differentiable
3173    o ini_forcing shifted to begining of initialise_varia
3174    o Incorporating QNVS line search routines into MITgcm
3175      (this is separate code, and therefore not under pkg)
3176      lsopt/, optim/
3177    o Updated verification/carbon/
3178      - #define GM_VISBECK_VARIABLE_K
3179      - GM_taper_scheme    = 'ldd97'    
3180    
3181    checkpoint46n_post
3182    Merging from release1_p8:
3183    o verification/natl_box:
3184      updating new external_fields_load routine
3185    o New package: pkg/seaice
3186      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
3187      The sea-ice code is based on Hibler (1979-1980).
3188      Two sea-ice dynamic solvers, ADI and LSR, are included.
3189      In addition to computing prognostic sea-ice variables and diagnosing
3190      the forcing/external data fields that drive the ocean model,
3191      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
3192      The implied surface heat flux is then stored in variable
3193      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
3194      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
3195      non-local transport term.  Because this call precedes model
3196      thermodynamics, temperature under sea-ice may not be "exactly" at
3197      the freezing point by the time theta is dumped or time-averaged.
3198      N.B.: fairly large differences in accuracy occur across
3199            different platforms/compilers; comparison between
3200            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
3201            generated output gives:
3202       T           S           U           V
3203      C D M    c        m  s        m  s        m  s        m  s
3204      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
3205      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
3206      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
3207    
3208      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
3209    o GAD:
3210      - generated new common blocks to account for call of
3211        same gad routines with differing traceridentities
3212        (needed to modify tracerIdentity indices in GAD.h)
3213      - generated separate common blocks for case useCubedSphereExchange
3214        (Department of Futurology)
3215      - parameter lists to gmredi_?transport: added tracerIdentity
3216      - added new key indices to tamc.h
3217    o external_fields_load:
3218      - added this routine to TAF list
3219      - needed to make some common blocks global and additional storing
3220        along the same lines as exf package (checkpoint_lev?_directives.h)
3221    o exf:
3222      updated external forcing package
3223      - bug fixes carried over from ecco-branch
3224        (missing OBCS_OPTIONS.h in two routines)
3225      - enable easy to use "no forcing".
3226      - added exf I/O for atmospheric loading
3227      - added exf I/O for runoff data
3228      - transfered scaling between exf <-> MITgcm to exf namelist
3229    o Adding new verification experiment global_with_exf.
3230      This verification experiment is almost identical to the
3231      global_ocean.90x40x15 experiment, except that it uses
3232      the exf (and cal) package instead of the
3233      external_fields_load routine (cf README file).
3234    
3235    checkpoint46m_post
3236    o modified testscript to return -- when there are no lines of "%MON" output
3237    o added new flag "quasiHydrostatic" for QH mode
3238      and new routine quasihydrostaticterms()
3239    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
3240      New routine: mom_u_coriolis_nh()
3241    o fixed sign of non-hydrostatic metric terms in u and v equations.
3242      Depend on correct sign of gravitySign.
3243    o added work.pc* to .cvsignore in aim directories using ifc
3244    o introduced flag for controllin non-hydrostatic metric terms
3245    o removed gravitySign from PARM04
3246    o switched to g77/ifc from pgf77 in aim experiments
3247    
3248    checkpoint46l_post
3249    o made convective adjustment work with pressure coordinates:
3250     - changed the direction of k-loop in convective_adjustment.F for the
3251       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
3252     - adjusted the reference pressure k-index in convective_adjustment.F
3253     - adjusted the convection condition in convect.F (in analogy to
3254       calc_ivdc.F)
3255     - convective_adjustment no longer computes anything on the halos
3256     - removed the warnings about negative salinity from find_rho.F and
3257       find_alpha.F; instead the new routine look_for_neg_salinity, called
3258       at the beginning of find_rho, find_alpha, and find_beta, does a
3259       check of the entire slice, if CPP-option
3260       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
3261    checkpoint46l_pre
3262    
3263    checkpoint46k_post
3264    o fixed the verification/global_ocean.90x40x15 experiment:
3265     - new bathymetry (the world according to A., JMC, and M.)
3266     - new initial fields and forcing fields (*.bin files)
3267     - new POLY3.COEFFS (for the next release one should switch to a full
3268       equation of state: JMD95P or MDJWF)
3269     - fixed several errors and redundancies in the data file
3270     - experiment uses looped cells
3271     - added matlab directory with diagnostic scripts for plotting of output
3272    
3273    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
3274     - read AIM physics parameters from a file (data.aimphys)
3275     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
3276    
3277    checkpoint46j_post
3278    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
3279    o move wVel computation at the end of the time step, in S/R integr_continuity
3280    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
3281    o update timeave pkg for wVel diagnostic.
3282    checkpoint46j_pre
3283    
3284    checkpoint46i_post
3285    o Clean up AIM package (and keep the results unchanged):
3286      include CPP_OPTION and use IMPLICT NONE in all routines ;
3287      declare all the variables _RL ; use _d 0 for all numerical constants.
3288      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
3289    
3290    checkpoint46h_post
3291    o cleaned up the use of rhoNil and rhoConst.
3292      - rhoNil should only appear in the LINEAR equation of state, everywhere
3293        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
3294        and the dynamical equations are all divided by rhoConst
3295    o introduced new parameter rhoConstFresh, a reference density of fresh
3296      water, to remove the fresh water flux's dependence on rhoNil. The default
3297      value is 999.8 kg/m^3
3298    o cleanup up external_forcing.F and external_forcing_surf.F
3299      - can now be used by both OCEANIC and OCEANICP
3300    checkpoint46h_pre
3301    
3302     Added code to convert surface volume flux (fresh water) into
3303     a mass flux when using P coordinates in the ocean (OCEANICP).
3304     Note: It assumes you have set rho0=rhoConst=density of fresh water.
3305    
3306    checkpoint46g_post
3307    o Include a new diagnostic variable phiHydLow for the ocean model
3308      - in z-coordinates, it is the bottom pressure anomaly
3309      - in p-coordinates, it is the sea surface elevation
3310      - in both cases, these variable have global drift, reflecting the mass
3311        drift in z-coordinates and the volume drift in p-coordinates
3312      - included time averaging for phiHydLow, be aware of the drift!
3313    o depth-dependent computation of Bo_surf for pressure coordinates
3314      in the ocean (buoyancyRelation='OCEANICP')
3315      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
3316        Theta, Salinity, and Pressure in the parameter list. This routine is
3317        presently contained in find_rho.F. This routine does not give the
3318        correct density for 'POLY3', which would be a z-dependent reference
3319        density.
3320    o cleaned up find_rho
3321      - removed obsolete 'eqn' from the parameter list.
3322    o added two new verification experiments: gop and goz
3323      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
3324    checkpoint46g_pre
3325    
3326    checkpoint46f_post
3327    o Enable tangent linear (forward mode) gradient checks:
3328      - extended active file handling to g_... files
3329      - added TANGENT_SIMULATION to theSimulationMode
3330      - extended grdchk package accordingly
3331    o added tangent linear setup in verification/carbon/code_ftl
3332    o added adjoint setup in verification/front_relax/code_ad
3333    
3334    checkpoint46e_post
3335    o Added new equation of state -> MDJWF
3336      - EOS of McDougall et al., 2002, JAOT, submitted
3337      - caveat: the equation of state is only valid for a smaller (more
3338        realistic?) range of values than JMD95P/Z and UNESCO
3339      - added masks to the calculation of pressure in store_pressure
3340      - added more check values for density in check_eos (ini_eos.F), some of
3341        the old check values are out of the range of the MDJWF-eos, so don't
3342        expect perfect matches for those
3343    checkpoint46e_pre
3344    
3345    checkpoint46d_post
3346    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
3347      'OCEANICP', also initialised field pressure correctly in ini_eos in the
3348      case of pressure coordinates. eosType='JMD95Z' in
3349      combination with buoyancyRelation='OCEANICP' now causes an error.
3350    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3351      in find_alpha/beta.
3352    checkpoint46d_pre
3353    
3354    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3355      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
3356    
3357    checkpoint46c_post
3358    o Changes necessary for ocean in p-coordinates
3359     -  Added new buoyancy relation = 'OCEANICP'
3360     -  Added new parameters = gravitySign (this used to be contained inside
3361        the factor dRdZ which I added when we first switched to R coordinates).
3362     X GM/Redi is not compatible (yet)
3363     X bottom drag and no-slip need to be debugged.
3364    checkpoint46c_pre
3365    
3366    checkpoint46b_post
3367    o Added new equation of state -> JMD95Z and JMD95P
3368      - EOS of Jackett and McDougall, 1995, JAOT
3369      - moved all EOS parameters into EOS.h
3370      - new routines ini_eos.F, store_pressure.F
3371    o Added UNESCO EOS, but not recommended because it requires
3372      in-situ temperature (see JMD95)
3373    o Modified formatting for knudsen2.f in utils/knudsen2 and added
3374      unesco.f to be used with POLY3
3375    checkpoint46b_pre
3376    
3377    checkpoint46a_post
3378    o Added (atmospheric) pressure loading
3379      - new field in FFIELDS.h, etc...
3380      - new cpp flag ATMOSPHERIC_LOADING
3381    o Changed hFacC to _hFacC in calc_phi_hyd.F
3382    o Added SHORTWAVE_HEATING to some files for consistency
3383    checkpoint46a_pre
3384    
3385    checkpoint46
3386    further merges from release1_p5
3387    o new ctrl package
3388      - adopted from ECCO environment to enable optimization
3389      - added Eliassen Palm fluxes to controls
3390    o added Eliassen Palm flux controls to gradient check package
3391    o cost package
3392      - Compatible with new ctrl package
3393      - added Eliassen Palm cost hooks
3394      - modif's of existing cost functions
3395    o Adjoint-related bug fixes in kpp:
3396      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
3397      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
3398    o autodiff package
3399      - flow directives:
3400        + new for S/R do_the_model_io
3401        + enhanced for S/R checkpoint
3402        + new gmredi.flow
3403      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
3404        disable adcommon.h/g_common.h by default.
3405      - fixed problem for adjoint of global_max
3406    o modified verification/carbon/
3407    o New setup for adjoint of global_ocean
3408    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
3409    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
3410    o incorporated hooks for sponge layer code (external_forcing.F)
3411    
3412    checkpoint45d_post
3413    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
3414    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
3415      (affects plume_on_slope "cg2d" output)
3416    o add new parameter deltaTfreesurf for free-surface time stepping
3417    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
3418    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
3419    o change phiMin in exp1 (to agree with documentation)
3420    o add new flags:
3421     - T,S forcing inside/outside Adams-Bashforth
3422     - turn off temp,salt advection and/or forcing
3423     - for each tracer, define internal flag for multiDimAdvection & A-B
3424    o monitor: change definition of KE to check conservation of Energy
3425    
3426    checkpoint45c_post
3427    o Removed f90 comments ("!")
3428    o Modified initialisations to enable exf package for MITgcm
3429      (without invoking ECCO_PACKAGE).
3430    o modifications to gradient check package (Martin Losch)
3431      - enable centered differences
3432      - modified format of standard output
3433    
3434    checkpoint45b_post
3435    o cleaned exchange calls in cg2d
3436    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
3437    o included CPP option SINGLE_LAYER_MODE in thermodynamics
3438      to configure barotropic setup (Martin Losch)
3439    o moved some initialisations within bi,bj loop in dynamics
3440      (TAF flow dependency)
3441    o in initialise_varia, moved call packages_init_variables
3442      before convective_adjustment_init
3443      (corresponding adjustment of TAF tape initialisation).
3444    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
3445    
3446    checkpoint45a_post
3447    o compute Rho over the whole domain (extend iMin,jMin indices)
3448    o specific exchange for X-slice domain (case Ny=1)
3449    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
3450    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
3451    
3452    checkpoint44h_post = checkpoint45
3453    o Fix to restore differentiability:
3454      place at which packages_init_variables is called in
3455      initialise_varia is crucial for reverse control flow.
3456    o modifications in GMRedi to enable stable adjoint
3457      (corresponding modif's in thermodynamics, dynamics)
3458    o added missing hook for sponge layer code in external_forcing
3459    o modified test cost functions
3460    o storing in gad_advection (plus removal of write(0,*)!
3461    o missing headers TR1.h added in convective_adjustment routines
3462    o errorMessageUnit set non-equal zero in eeboot
3463      (conflict on some platforms, e.g. IBM SP3)
3464    o modified carbon verif.
3465    
3466    checkpoint44h_pre
3467    o vertical grid option: allow to put the Interface at the middle between
3468      2 cell-centers ; replace delZ in pkg/kpp by drF.
3469    o GM Advective form: Tracers are advected using the residual transport (=
3470      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
3471    
3472    checkpoint44g_post
3473    o fix surface correction term in multiDimAdvection (affects plume_on_slope
3474      results) ; ifdef missing in thermodynamics.F
3475    
3476    checkpoint44f_pre,checkpoint44f_post
3477    o added PTRACERS package
3478      This allows an arbitrary number of passive tracers to be integrated
3479      forward simultaneously with the dynamicaly model.
3480      + Implemented so far:
3481        - basic forward algorithm (time-stepping, advection, diffusion, convection)
3482        - I/O and checkpointing
3483        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
3484      + Not implemented so far:
3485        - KPP
3486        - OBCS
3487      + No specific example supplied (yet) but global_ocean.90x40x15 has the
3488        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
3489        line in data.pkg.
3490      + This package is disabled by default since it increases storage.
3491    
3492    
3493    o testscript: added -cleanup option
3494    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
3495                 b) enable to filter 2D fields.
3496    
3497    checkpoint44e_pre,post
3498    o re-wrote convective adjustment to use pre-calculated weights
3499      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
3500      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
3501      Original calls to convect() still in place.
3502    
3503    chkpt44d_pre,post
3504    o added missing EXCLUDE_MONITOR flags
3505    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
3506      (incompatible typ in MIN/MAX expressions caused problems
3507      on IBM SP3)
3508    o in genmake added variable MAKEDEPEND
3509      plus resetting for case SunOS
3510    o added timer_stats.c routine for IBM SP3
3511    o removed variables in dynamics
3512    !!! I forgot to create tag chkpt44d_pre !!!
3513    !!! But chkpt44d_pre = chkpt44c_post    !!!
3514    
3515    o real fresh water flux implemented with non-linear free-surface.
3516    
3517    chkpt44c_pre,post
3518    o few fix (mask in shap_s2, EmPmR in external_field_load,
3519      USE_NATURAL_BCS in solve_for_P);
3520    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
3521    
3522    checkpoint44b_pre/_post
3523    o merge of relevant stuff from the ecco-branch:
3524      - genmake: removed $S64 overwrite for case SunOS
3525      - pkg/exf: update and corrections for field swapping and obcs
3526      - pkg/ecco: parameter lists for the_model_main, the_main_loop
3527                  harmonized between ECCO and MITgcm
3528      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
3529                      updated checkpointing_lev... lists for obcs
3530      - model/src: minor changes in forward_step, plot_field
3531                   added directive for divided adjoint in the_main_loop
3532      - pkg/mdsio: added mdsio_gl_slice
3533    
3534    o check parameters & config (chkpt44a_pre,post)
3535    o OBC and NonLin_FrSurf.
3536    
3537    checkpoint44
3538    o fix bug in mom_vi_del2uv
3539    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
3540    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
3541    o update AIM experiments (NCEP input files)
3542    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
3543    o added some stuff for AD
3544    
3545    checkpoint43
3546    o added two new advection tests
3547    o added global 4x4 degree ocean test
3548    o added test of H&S94 with free surface on cube
3549    o some final mods for gradient check, adjoint,...
3550    
3551    checkpoint42
3552      Fixed AD-related problems:
3553    o Store directives up-to-date with re-arranged Adams-Bashforth
3554      (mainly thermodynamics.F)
3555    o New store directives for multi-dim. advection schemes
3556      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
3557      * new common block and key passkey
3558      (mainly gad_advection.F)
3559    o Modified store directives for split of dynamics/thermodynamics
3560      for the case ALLOW_KPP
3561    o Cleaned argument list for timestep_tracer.F
3562    
3563    checkpoint41
3564    o re-formatted/added comments in prologues of key subroutines
3565      to work with protex
3566    
3567    checkpoint40
3568    o moved calc_gs, calc_gt and calc_tr1 back to model/src
3569    o added FLT (floats) package from Arne along with demo. experiment
3570    o re-arranged Adams-Bashforth scheme for tracers to allow easier
3571      implementation of forward-in-time forcing terms
3572    o more mods for non-linear free-surface including new variable
3573    o modified multi-dim method to work on cube
3574    o bug fix in KPP (from DM)
3575    
3576    checkpoint40pre9
3577    o added DST advection schemes
3578    o fix MPI bug on SGI's
3579    o modifications for non-linear free-surface
3580    o fixed conditionals for fixed flow/passive tracer only mode
3581    o added tension/strain form of stress tensor
3582    o changes to commenting of arguments for TAF/TAMC
3583    o added/updated many matlab scripts
3584    o added multi-dimensional advection method for tracers
3585      
3586    checkpoint40pre8
3587    o new package rw/
3588      Added method for dumping intermediate local arrays:
3589      mdsio_writetile - same as mdsio_writefield except works from inside
3590                        bi,bj loop
3591      mdsio_writelocal - same as mdsio_writetile except works for local
3592                         arrays
3593      write_local_r? - higher-level wrapper for mdsio_writelocal
3594      Controlled by diagFreq. Defaults to zero (ie. no dumps)
3595      Example given at end of mom_vecinv.F that dumps some local arrays.
3596    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
3597      control flux-form versus vector invariant code.
3598      Switch is runtime flag vectorInvariantMomentum (defaults to false)
3599      or genmake -DISABLE ...
3600    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
3601      (additional storing is now needed for case vecinv;
3602      currently nothing implemented to switch this storing off
3603      in case fluxform is used since no CPP flag available).
3604    
3605    checkpoint40pre7
3606    o bug fix in dynamics.F
3607      calc_viscosity called before k=1,Nr loop.
3608    o added some #ifdef's ALLOW_PASSIVE_TRACER
3609    o cleaned initialisations in ctrl_map_ini
3610      related to TAF
3611    
3612    checkpoint40pre6
3613    o split dynamics into thermodynamics & dynamics
3614    o corresponding split of calc_diffusivity into
3615      calc_diffusivity, calc_viscosity
3616      (kpp_calc_diff, kpp_calc_visc).
3617    o Added diffkr, kapgm to control variables
3618    o bug fix in gmredi_slope_limit for ldd97
3619    
3620    checkpoint40pre5
3621    o proper initialization of Adams-Bashforth time stepping
3622      + uses forward step for very first step of model (iter=0)
3623    o re-generated *all* output since almost all output is modified by this
3624      change (sorry but we've been putting this one off for about 2 years)
3625      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
3626        *not* regenerated since they are already out of date and I don't
3627        want to create the impression that they are suddenly working.
3628    o removed KAP stuff for DEC's
3629    o modified/added many .cvsignore files in */code and */input
3630    o added new expt "solid-body.cs-32x32x1"
3631      + this uses an alternative form of ini_curvilinear_grid.F which
3632        is not necessarily any better than the current one...
3633    
3634    checkpoint40pre4
3635    o added re-initialisations of utrans,vtrans,rtrans in
3636      calc_common_factors which are crucial for TAF.
3637    o extended iMin,jMin range for calc_common_factors,
3638      calc_diffusivity
3639    o added option ALLOW_PASSIVE_TRACER
3640    o a few minor updates and fixes
3641    
3642    checkpoint40pre3
3643    o created calc_gtr1.F for gad package
3644    o split the_main_loop and re-introduced forward_step
3645    o some recomputations of nIter0 for TAMC
3646    
3647    checkpoint40pre2
3648    o Updated to latest branch of AJA, JMC
3649    o Added gradient check package
3650    o Added routines for passive tracer handling
3651    o Added carbon sequestration sensitivity experiment
3652    
3653    checkpoint39
3654     o Modifications and fixes to support TAMC
3655       (mainly missing or wrong directives)
3656     o Corrected common blocks when fooling TAMC to produce adjoint I/O
3657       in addummy_in_stepping
3658     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
3659     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
3660     o Included following packages:
3661       cal: calendar
3662       exf: external forcing
3663       ecco: essential routines to control use of cal, exf
3664             (NB: this is not the full ECCO environment)
3665     o disabled some packages by default in genmake
3666    
3667    checkpoint38
3668     o see notes_c37_adj.txt
3669     o corrected wrong layer index in external_forcing_t
3670     o replaced the_main_loop/forward_step by the_main_loop
3671     o removed forceoutput from write_state
3672       (replaced criteria for initial/final state)
3673     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
3674    
3675    checkpoint37
3676     o mdsio.F routine split and packaged in pkg/mdsio
3677       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
3678        used unless genmake -disable=mdsio)
3679     o allow a more precise surface-geopotential gradient for the atmosphere
3680       taking into account the change in space of Alpha (=1/rho) at the surface.
3681     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
3682       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
3683     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
3684       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
3685       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
3686     o Time-Average diagnostics defined as a pseudo package "timeave".
3687     o pickup files : old pickup (before c35) did not work with new code (c35
3688       and after) unless activating 2 commented lines in initialise-varia.
3689     o Non-Hydrostatic pickup file Pb fixed.
3690     o bug with Rigid-lid version (since c35) fixed.  
3691    
3692    checkpoint36
3693     o implement Crank-Nickelson barotropic time-stepping
3694     o recover Time-Average diagnostics
3695     o fix Pb in checkpoint (PR#19)
3696     o AIM become a standard package ; clean unused CPP_kees
3697    
3698    checkpoint35
3699     o subtantial rewrite of dynamics.f
3700     o allows staggered time-stepping
3701     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
3702     o added bottom drag (linear + quadratic)
3703    
3704    checkpoint34
3705     o Modified exchange routines for correct reverse simulation.
3706     o Added verification output to comply with bug fix in impldiff.F
3707       as of c33 (exp2, natl_box).
3708     o Corrected store directives in dynamics.F
3709     o Corrected array boundaries in impldiff.F
3710     o Corrected array dimensions in gmredi.
3711       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
3712     o Added routine GLOBAL_SUM_INT to global_sum.F
3713     o Added mdsio_gl.F for ECCO purposes.
3714    
3715    checkpoint33
3716     o Fixed bug in lower BC in impldiff.F
3717     o Fixed confusion about units of forcing arrays in FFIELDS.h
3718       namely Fu,Fv,Qnet,Qsw,EmPmR:
3719       - Removed verification/natl_box/code/external_fields_scale.F
3720         (did not differ from that in model/src)
3721       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
3722         (see FFIELDS.h for description)
3723       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
3724         kpp_calc.F and kpp_transport_t.F
3725       - Removed model/src/external_fields_scale.F and calls to it
3726       - verification/natl_box uses flux data with "atmospheric" sign so
3727         a special version of external_fields_load.F is used to
3728         change the data as it's read in. This way, the arrays
3729         have the right units and signs at all times tha a user could
3730         possibly use them.
3731     o Corrected genmake to delete a temporary file during configuration
3732    
3733    checkpoint32
3734     o Scaling of forcing fields moved from external_forcing.F to
3735       external_fields_scale.F, called directly after loading fields.
3736     o Surface relaxation terms added to surface tendency fields in
3737       extra subroutine.
3738     o impldiff.F changed to avoid storing by TAMC of huge intermediate
3739       fields.
3740     o Changes in GMRedi to comply with packaging structure.
3741     o Modifications and bug fixes in KPP package.
3742     o Verification experiment for KPP added (verification/nat_box/)
3743    
3744    checkpoint31
3745     o Packages interface brought in line with defined standard
3746       -> new routines packages_...F
3747       -> changes in initialise_fixed.F, initialise_varia.F
3748       -> enables initialisation interface for ECCO package
3749     o Rescaling of external forcing fields immediately after read
3750       (removed from external_forcing.F)
3751       -> new: surface_fields_scale.F
3752       -> affects ini_foorcing.F, external_fields_load.F
3753     o Computation of surface tendencies before tendency updates.
3754       -> new: external_forcing_surf.F
3755     o Change of variable names useGMRedi, useKPP, useECCO
3756     o Further changes in dynamics.F, impldiff.F for TAMC
3757     o Tested for experiments 0, 2, 4.
3758       - not yet tested for GMRedi.
3759       - not yet tested for KPP.
3760    
3761    checkpoint30
3762     o Updates for OBCs
3763     o New experiment for test OBCs (internal_wave)
3764     o New output.txt in verification/exp4/results/
3765     o Updates for KPP: calculation of viscosity corrected, new variables
3766       kpp_dumpFreq and kpp_taveFreq
3767     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
3768       and entry for T90 in genmake
3769    
3770    checkpoint29
3771     o packaged KPP and GM/Redi
3772    
3773    checkpoint28
3774     o Corrected initialization of hFacMin for difference vertical coordinates
3775     o Modified calculation of partial cell thickness to more robust algorithm
3776     o config_summary.F: replaced write_1D_... by write_0D_...
3777       read_write.F: added subroutines write_0D_...
3778     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
3779       included some initialisations required for TAMC.
3780     o routine calc_isoslopes: modified sqrt computation to make it
3781       differentiable for zero argument.
3782     o routines dynamics, impldiff:
3783       included store directives and tape key computations required for TAMC.
3784     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
3785    
3786    checkpoint27
3787     o fixed calc_isoslopes() to so that cancellation of terms in tensor
3788       formulation works properly with variable resolution.
3789     o restructured the calling tree between the_model_main() and dynamics()
3790     o split initialise() into initialise_fixed() and initialise_varia()
3791     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
3792       in new routine ini_psurf()
3793    
3794    checkpoint26
3795     o moved some #ifdef in optional routines to encompass everything
3796       except the argument declarations. This was using up some memory.
3797     o fixed macros like _ADT to work with both versions of Linux cpp
3798     o cleaned up some unused and uninitialized variables
3799       (helps when debugging with strict compile options)
3800     o split up CPP_EEOPTIONS.h into options and macros
3801       (macros are now in eesupp/inc/CPP_EEMACROS.h)
3802     o patch for 2 processor JAM mode
3803    
3804    checkpoint25
3805     o updates for OBCs and NH
3806     o dramatically reduced memory usage
3807     o added "JAM" routines for use on Artic network
3808     o parameterization of convection by implicit vertical diffusion
3809     o added a diagnostic of convective index
3810     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
3811       (this is was partly for OBCs and NH but also in anticipation of
3812        an explicit free-surface option)
3813     o initial state input files for U and V
3814    
3815    checkpoint24
3816     o Removed some spurious "REAL"s
3817     o Updated KPP to latest version from JPL
3818     o Added a COS(latitude) in horizontal viscosity
3819    
3820    checkpoint23
3821     o Added del^4 diffusion for salt and temperature
3822     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
3823    
3824    checkpoint22
3825     o Made many small changes: implicit none, format(i5), etc...
3826     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
3827    
3828    checkpoint21
3829     o Introduced new I/O package that supports direct-access records (mdsio.F)
3830     o Split-up mid-level I/O routines
3831     o Updated input data for experiments 0,1,2,4 and 5
3832     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
3833    
3834    checkpoint20
3835     o Tidied up open-boundaries some more
3836     o Added non-hydrostatic code
3837     o Fixed some input data
3838     o Modified MPI start-up to work in "coupled" context.
3839    
3840    checkpoint19
3841     o Tidied up directory structure for verification experiments.
3842     o Added new code for open boundaries.
3843     o Corrected advective terms near boundaries.
3844     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
3845     o Implemented free-slip/no-slip BCs and del^4 dissipation.
3846     o Split default parameters out of ini_parms.F into set_defaults.F.
3847    
3848    checkpoint18
3849     o Further changes for optional code generation with
3850       CPP - ugh!
3851    
3852    checkpoint17
3853     o Beginning to incorporating modularity
3854       for supporting atmos. and ocean configs.
3855     o Small changes for TAMC complinace
3856     o New ultra simple test case. Barotropic box
3857       configuration "exp0".
3858    
3859    checkpoint16
3860     o Minor changes to exchange routines to support
3861       accumulation in reverse mode. Adjoint of an
3862       assignment is an addition.
3863     o Changes to support compilation by TAMC (LR(1)
3864       syntax) and by g77 under Linux ( 72 character
3865       limit ).
3866    
3867    checkpoint15
3868     Rewrote exchange routines to allow
3869     o General tile <-> tile connectivity.
3870     o TAMC reverse mode flag ( is this really needed? )
3871     o Variable width overlap and exchange region widths.
3872     o Hooks for sharing data via DMA, Arctic, Memory Channel,
3873       shmput/shmget, VIA, SYSV shmem and every other cool
3874       communication method.
3875    
3876    checkpoint14
3877     Consistent isomorphism chages made. These allow dynamical core
3878     to support both pressure and meters as a vertical coordinate.
3879    
3880    checkpoint13
3881     Release which corrects global_max problem and a couple
3882     of KGM time-averaging diagnostic errors. Also contains
3883     a double-gyre experiment setup as well as the baseline
3884     4 degree global template. The double gyre template is
3885     organised to allow it to be applied automatically to
3886     the baseline configuration.
3887    
3888    branch-point-rdot
3889     A few tidy-ups have been made bt the real point of this
3890     check-point (excuse the pun) is to allow a branch to be
3891     made for the purposes of adding the rDot alterations.
3892     I don't want to commit the rDot to the main-trunk until
3893     we've actually tested it...
3894    
3895    checkpoint12
3896     Tidy up and added generic genmake script (formerly
3897     configure script).
3898     Released to testers.
3899    
3900    checkpoint11
3901     Re-arranged initialise() and introduced ini_vertical_grid()
3902     and ini_masks_etc().
3903    
3904  checkpoint10  checkpoint10
3905   Introduced the configure script.   Introduced the configure script.
3906   Separated out the diags package.   Separated out the diags package.

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