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revision 1.17 by cnh, Mon Nov 30 16:46:45 1998 UTC revision 1.975 by mlosch, Mon Apr 14 09:45:35 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/my82: add netcdf-support and diagnostics
8    o thsice pkg:
9      - Now hsMax limits snow heitght by turning it into ice following
10        flooding scheme (and now conserving energy)
11      - Slight rewriting of the formula in thsice_calc_thick.F
12      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
13        --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
14    
15    checkpoint59p
16    o gchem / dic / cfc :
17      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
18      - add new parameter files: "data.dic" & "data.cfc" ;
19      - various re-arrangement in initialisation & header file ;
20      - fix tutorial_global_oce_biogeo for multi-threaded test.
21    o pkg/dic: test for "pickup_dic" file when restarting ;
22      if no pickup-file, can restart with a re-initialised pH (same as it did
23      before) providing pickupStrictlyMatch is set to False.
24    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
25      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
26    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
27      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
28    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
29     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
30       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
31    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
32       scheme to use for vorticty-term ;
33     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
34       (with default selectVortScheme, return to original discretisation)
35     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
36    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
37    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
38      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
39      also fix diagnostics VISCAHW & VISCA4W.
40    
41    checkpoint59o
42    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
43    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
44      move a few statemens out the main loop into separate loops
45    o pkg/shelfice:
46      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
47        (kg/m^2/s), does not break tests, because in verification/isomip,
48        rhoConstFresh=rhoConst (by accident)
49      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
50      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
51        new file model/src/seawater.F, so that they are available for all pkgs.
52      - convert potential temperature into in-situ temperature. This changes the
53        isomip tests => update tests
54    o add a flag writePickupAtEnd (default=true) to be able to suppress
55      writing a pickup at the last timestep
56    o tools/mpack-1.6 :
57      - disable automake (not working) and autoconf (not needed).
58      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
59        also cleaner with much less compilation warnings.
60    o pkg/profiles:
61      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
62      (for "less than 32 characters name" compiler requirement)
63    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
64      conditions that have a different sampling frequency than S/T/U/V obcs
65    o pkg/diagnostics (stats-diags):
66      - fix global Min/Max in case 1 processor get only empty tiles
67    o genmake2: replace (4 times)
68         make genmake_tc_1.o >> genmake_warnings 2>&1
69      with
70         COMM="$CC $CFLAGS -c genmake_tc_1.c"
71         echo $COMM >> genmake_warnings
72         $COMM >> genmake_warnings 2>&1
73      to make genmake2 always see the value of CC as specified in the optfile.
74    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
75      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
76      - modify verification advect_cs test to test SOM-advection on CS-grid.
77    o pkg/ctrl:
78      - Rewrite of ctrl_map_ini_ecco.F,
79        introducing a generic routine (ctrl_map_ini_gen.F).
80      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
81    
82    checkpoint59n
83    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
84      number in dedicate array "hdiag":
85      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
86        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
87      - many small changes (integer format) for large number of diagnostics
88      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
89        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
90    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
91      usingSphericalGrid, this allows to define the rotated grid coordinates
92      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
93      geographical coordinates according to the inverse of the rotation defined
94      by the Euler angles, so that Coriolis parameter and online-interpolation by
95      exf works with the geographical coordinates on XC/YC/XG/YG.
96      Naturally, this feature does not work with all packages, so some
97      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
98      profiles), because there the coordinates are assumed to be regular
99      spherical grid coordinates.
100    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
101      - introduce isopycnal diffusion coefficient control.
102    o tools/adjoint_options:
103      - additional control vector components.
104    o pkg/mnc: have mnc create marginally meaning full coordinate variables
105      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
106    o pkg/mypackage:
107      - add example of read/write pickup for state-var ;
108      - add entry points to the main code for state-vars diags & write-pickup.
109    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
110      transitions for useExfYearlyFields
111      - add new subroutine that determines the file to read from for
112        use*YearlyFields = .TRUE. and .FALSE.
113      - add a verification experiment to global_with_exf that tests
114        useExfYearlyFields with USE_EXF_INTERPOLATION defined
115    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
116      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
117      subroutines (which could be generated from a template, because they are
118      almost identical), for now they are included in obcs_prescribe_read.F for
119      simplicity
120    o pkg/exf:
121      - add a little more diagnostic to exf_interp_read (in analogy to
122        mds_read_field, can be turned off with debugLevel < debugLevA=1)
123      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
124        ugly but fast by unrolling short inner loops, inserting a unroll=8
125        directive in routine lagran, and splitting a loop and making do while the
126        outermost loop (the latter requires the intoduction of index arrays)
127    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
128    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
129      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
130    o verification/seaice_obcs: updated for restart test and latest options
131    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
132      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
133      for now this is only available for the C-grid code and also within
134      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
135    
136    checkpoint59m
137    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
138      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
139    o gad_som : fix flux output (& diagnostics) to have same units as other  
140      advection scheme fluxes (was previously multiplied by deltaT).  
141    o added verification/seaice_obcs both to test seaice open boundaries
142      and to provide an example matlab scrpt for generating them
143    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
144    o pkg/salt_plume: clean up salt_plume_frac.F to
145      remove redundancy in PlumeMethod 1 and 4
146    o pkg/kpp: added saltplume diagnostics
147    o pkg/obcs and pkg/seaice:
148      - do not set uice and vice to zero when OB*icefile are unspecified
149      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
150      - moved seaice tracer obcs after call to seaice_growth
151    o pkg/salt_plume: added various options for salt plume depth
152      criterion and for vertical distribution of the salt
153    
154    checkpoint59l
155    o pkg/ptracers: new version of ptracers pickup:
156      read meta file and write only fields which are needed to restart.
157      ( same logic as main pickup file ; also using pickupStrictlyMatch )
158    o pkg/seaice:
159      - add timescale for melting due to warm mixed layer as a means of
160        setting SEAICE_availHeatFrac more conveniently
161      - add a CPP-flag/runtime parameter check for flooding algorithm
162      - reformulated availHeat in seaice_growth.F to be independent of AREA
163    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
164      unit changes
165    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
166    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
167      SX vector computer.
168    o pkg/seaice:
169      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
170        seaice forcing fields can now be read only through pkg/exf
171      - removed some unused halos
172    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
173    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
174      or U/VICE from U/VWIND before computing U/VSTRESS
175    
176    checkpoint59k
177    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
178      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
179    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
180      all experiments pass when compile with un-initialised var. checking option.
181    o added pkg/salt_plume
182    o script to test restart (for now, in MITgcm_contrib/jmc_script)
183    o pkg/seaice: new read/write pickup version.
184      read meta file and write only fields which are needed to restart.
185      ( same logic as main pickup file ; also using pickupStrictlyMatch )
186    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
187    o lab_sea.hb87: modify the domain & update output.hb87.txt :
188      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
189      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
190      process. Fixed here by closing the domain at the Northern boundary.
191    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
192    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
193      a set of consecutive levels in/from a 3-D array.
194    o pkg/ptracers:
195      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
196      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
197    
198    checkpoint59j
199    o in pkgs: dic, obcs, offline, rbcs:
200      standard way to compute coeff. for time interpolation between 2 time reccords
201      which retains full precision (& make results less dependent on compiler).
202      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
203    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
204      packages instead of reading ice cover and wind speed separately
205    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
206     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
207      to allow to compile customized code before the update)
208    o cleaning-up:
209      - fix CPP instruction syntax in pkg/obcs
210      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
211        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
212      - fix some threads issue in IO parts.
213    o pkg/dic:
214      - add tons of "_d 0" (--> much better testreports !)
215       and then update outputs of tutorial_global_oce_biogeo
216    o pkg/mom_fluxform:
217      add a special version of momentum advection intended to conserve momentum
218      next to a bathymetry step or a coastline edge. (default = off = #undef)
219    o new read/write pickup version:
220      - for now, only implemented for main (mdsio) pickup file.
221      - write out only what is needed to restart; merge pickup_nh , pickup_ph
222        and main pickup together.
223      - read meta file; read only what is needed to restart; stop if a field
224        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
225        if it make sense (even if the restart is not perfect).
226      - if no meta file, assume that pickup to read corresponds exactly to
227        a pickup that would currently be written.
228      - read pickup written in the old format (until checkpoint59i) if it
229        recognizes an old meta file (no field-list).
230      - add a meta file in exp. which starts from a pickup: 2 cases:
231        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
232         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
233        b) a meta file describing the content of the associated pickup file
234         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
235    o pkg/mdsio & pkg/rw:
236      - new routine to read a meta file ; new set of routine to read
237        Multiple-fields file (with meta file).
238    o added open boundary conditions capability for seaice
239        HSNOW, HSALT, UICE, and VICE
240    
241    checkpoint59i
242    o adjoint:
243      * fix multiDimAdvection adjoint
244        (partial recomputation problem by TAF for fVerT(:,:,kDown)
245        and comlev1 size definition (maxpass vs. max. number of tracers)
246      * verification/global_ocean.90x45x15 adjoint now tests
247        NLFS and multiDimAdvection using DST3 (=30)
248      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
249    o pkg/kpp: add "_d 0" to real constant (if missing);
250      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
251      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
252    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
253      for internal parameters related to restart process (formerly from PARAMS.h)
254      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
255    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
256      as argument. (only atm2d & obcs write_pickup have not yet been updated)
257    o pkg/monitor:
258      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
259      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
260      - account for deep Atmosphere factor and density factor (anelastic)
261    o added open boundary conditions capability for seaice HEFF and AREA
262    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
263      thermodynamics
264      - requires a little reorganization, which affects the testreport results
265        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
266        so that now the conservative form is tested
267      - add a few comments
268    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
269    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
270    o add new diagnostics to seaice: advective, diffusive fluxes (only for
271      multidim-advection, for scheme 2 they are not filled) and transports,
272      thermodynamic growth rates
273    o change units of EmPmR (inside the code, + within coupling interface)
274      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
275      Affects results @ truncation level (cg2d match) and update output of
276       experiments: lab_sea(6), global_ocean.90x40x15(10),
277      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
278      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
279      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
280      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
281    
282    checkpoint59h
283    o pkg/exf:
284      - improve vectorization by moving if-statement out of loops in
285        exf_mapfields, exf_radiation
286      - exf_bulkformulae.F: introduce 2D fields and vectorize code
287    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
288    o testreport:
289      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
290        monitor & update offline_exf_seaice exp. output.
291      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
292    o pkg/seaice:
293      - bug fix in the evp solver: boundary conditions were affected be
294        masking of zMax/zMin (changes results)
295      - minor bug fix in boundary conditions in seaice_calc_strainrates
296        (changes results for no_slip)
297      - seaice_lsr.F: make interpolation of eta dependent on boundaries
298      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
299      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
300        stress formulation and no-slip boundary conditions
301    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
302      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
303    o pkg/seaice: a first HSALT time stepping equation has been checked in
304    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
305      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
306      without requiring DO-IF statements
307    o pkg/thsice:
308      use continuous power-law function for partition of energy between lateral
309      melting/freezing and thinning/thickening ; old code using step function
310      still available with #undef THSICE_FRACEN_POWERLAW
311      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
312    o testreport: change AD testing : check against results/output_adm.txt
313      using same scripts as for forward test.
314    
315    checkpoint59g
316    o adjoint testing: in preparation for changing testreport:
317      - output format: cost and grad written on separated lines
318      - ad output results in directory "results" (instead of "results_ad")
319    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
320    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
321    o pkg/ecco: allow user defined cost function contributions
322    o testreport:
323      Allow to choose (per experiment) the list of tested output variables
324       and the main variable (used to issue a pass/FAIL ) ;
325      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
326      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
327      Also modify printing of summary:
328       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
329       b) echo the list of tested variables in the individual summary.txt of
330          each experiment.
331    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
332      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
333      (but still depend on the tile decompostion of the domain).
334    o pkg/seaice: change a discretization detail to make the B-grid code
335      "more symmetric". This change is likely to remove all "ridges/leads" that
336      where quasi-aligned with the grid in B-grid solutions. It may also be
337      the solution to the stress coupling issues with the B-grid.
338    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
339      remove .cvsignore from input dir. (since testreport no longer run here).
340    o pkg/thsice:
341     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
342     - fix reshaping of sea-ice just after advection:
343       melt all the ice only if ice-volume is too small.
344     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
345       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
346     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
347    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
348      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
349    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
350      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
351      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
352      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
353      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
354      -> update output.txt
355    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
356     this affects truncation error: -> update output.txt of exp:
357      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
358      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
359    
360    checkpoint59f
361    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
362    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
363      a bounded range (in forward mode)
364    o pkg/ecco, ctrl, autodiff and mom_common:
365     internal parameter controls, completements of implementations
366    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
367    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
368      (not seem any difference in testing results).
369    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
370       at face corners.
371    o pkg/generic_advdiff:
372     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
373      loop range indices for computing vertical advection tendency
374      and do the calculation in the interior only (no overlap) ;
375      for now, only implemented for SOM advection (to save CPU time).
376     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
377    o exch2 adjoint
378      First set of changes:
379      - add exch2 hand-written adjoint templates
380      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
381        This will require cleanup in pkg/autodiff/*.F
382        (changed routines currently kept separate in verif. code/)
383      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
384        that used to hide exch2 or cubed-sphere specific code
385        (commented via 'cph-exch2')
386    o pkg/seaice
387      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
388    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
389       output of global_ocean.cs32x15.thsice .
390    
391    checkpoint59e
392    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
393      for B-grid vector (not yet tested) and C-grid vector (<- only used
394      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
395    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
396      (#ifdef ALLOW_SALT_PLUME)
397    o gather_2d/scatter_2d: removed halo regions
398    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
399      scheme and the corresponding test case (under front_relax dir). For now,
400      only available with Skew-flux form and not yet tested in realistic set-up.
401      adjoint: store directives updated, but gradient checks deteriorated,
402      so maybe GM/Redi adjoint is now broken.
403    o seaice adjoint
404      * add AREA, HEFF, HSNOW as control variable
405        (should not change lab_sea results)
406      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
407    o pkg/seaice:
408      * added computation of saltFlux in seaice_growth;
409        For time being, sea ice salinity is assumed constant
410        contribution of snow flooding to freshening of sea ice is neglected.
411        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
412        defaults to 0.0 in order to maintain backward compatibility.
413        Typical values for SEAICE_salinity are 4 to 10 g/kg.
414      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
415      * added SEAICE_availHeatFrac, which specifies fraction of surface level
416        heat content used to melt or grow ice
417      * commented out cap of HICE: it helps keep ice thinner
418      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
419      * applied OBCS T/S mask to HEFFM sea ice mask
420    
421    checkpoint59d
422    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
423     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
424     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
425    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
426     and change default value of parameter "GM_Small_Number";
427     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
428       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
429       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
430    o pkg/ecco: cost function when applying pkg/smooth to controls
431    o pkg/ctrl: add forcingPrecond run time parameter
432    o pkg/seaice:
433     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
434     - fix bug in metric terms of u-equation in LSR solver (implicit part),
435       changes verification/lab_sea
436     - rearrange implicit part of u-equation in LSR solver to make it easier to
437       read, understand, and debug. This causes changes at the truncation level.
438     - fix (serious) bug in the boundary conditions (sign error in the implicit
439       part) of the LSR solver. Changes all LSR results.
440     - fixed problem with HSNOW initialization to avoid thick snow when AREA
441       is initilized with small values - does not change lab_sea results.
442     - added HsnowFile initialization capability
443    o pkg/smooth: addition to model/src and pkg/ctrl so allow
444     initialization of pkg/smooth and application to control vector
445    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
446    o dependencies: pkg/profiles requires pkg/cal
447    o pkg/profiles:
448     - added option ALLOW_PROFILES_GENERICGRID
449         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
450         that interpolation information (grid points and coefficients) is provided
451         within the netcdf input files.
452         -> sample matlab scripts can be found in MITgcm_contrib/gael
453         that allow you to prepare netcdf input files.
454     - also modified: cleaner include statements, cleaner error print statements,
455       cleaner stops when error, and more tests of the netcdf input files consistency.
456    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
457    o pkg/seaice:
458     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
459       requires a new routine: seaice_diagnostics_fill.F
460     - make sure that seaice does not move if not forced (pressure replacement
461       method, Hibler and Ip, 1995), changes results
462     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
463     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
464       It is turned off by default (=-1.), because it changes the results.
465     - make it possible to read AREA from a file, too.
466    
467    checkpoint59c
468    o add S/R and diagnostics for oceanic mixed-layer depth
469    o move GMRedi call after all vertical mixing schemes (including KPP)
470    o pkg/thsice:
471     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
472      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
473    o pkg/obcs:
474     - bug fix for balance code
475    o pkg/seaice:
476      - allow values of SEAICE_elasticParm > 1
477      - add new parameter SEAICE_evpTauRelax as an alternative
478        to SEAICE_elasticParm
479      - make lsr boundary conditions free slip (by default), changes result
480      - add code for no slip boundary conditions for lsr
481      - set minimum of zeta to zero (and not 4e8) (changes results)
482      - add a cap on AREA after advecting AREA if seaice_growth is not called
483    o change calculation of Visbeck K:
484      - no longer depend on tapering scheme; instead, compute slope (limited
485        by GM_maxSlope). this is equivalent to what was comuted before with
486        clipping or linear tappering.
487      - fix vertical averaging (wrong by 1/2 level)
488      - leave the old version (but will not be maintained) within
489        #ifdef OLD_VISBECK_CALC / #endif
490      - update output of exp. ideal_2D_oce
491    o change error catch in calc_r_star to improve vectorization
492    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
493      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
494    o adjoint:
495      Re-organized adjoint checkpointing according to Matt Mazloff
496      (but with modifs/completions/cleanups)
497      Storing is now bundled into large arrays to optimized I/O
498      (and second step in cleanup of the_main_loop)
499    
500    checkpoint59b
501    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
502      - export/import (between ocean & coupler) fields needed for ocean DIC.
503    o pkg/seaice:
504      - get rid of three more exchanges seaice_calc_viscosities (required
505        different loop boundaries in seaice_lsr and seaice_ocean_stress)
506      - bug fix in seaice_ocean_stress (update of lab_sea required)
507      - reduce loop boundaries to necessary minimum also in seaice_evp
508      - go back to the old way of computing deltaC/Z as the adjoint likes that
509        better
510    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
511      passive tracer to an Age Tracer) + update output.txt
512    o pkg/exf:
513      - implement A-grid / C-grid selection for wind-stress input files.
514      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
515      for now, in exf_bulk_largeyeager04.F only :
516      - change implementation for case where windspeed + 2. components wind-stress
517        are read-in. AND use rhoConstFresh to convert evap.
518    o pkg/seaice:
519      - use correct EXCH_UV for wind-forcing (on A-grid).
520      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
521        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
522    o pkg/exf:
523      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
524      EXF_INTERPOLATION:
525      - merge global_with_exf/code version of exf_interp_read.F
526        to the main code ;
527      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
528        reading the file ; Important: This options needs to be defined to recover
529        previous code.
530        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
531      - no longer loose real*8 precision along the way when using exf_iprec=64.
532    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
533      - change discretisation of evp-solver in order to avoid another exchange
534        (changes lab_sea) and clean up a little
535      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
536        help the adjoint (this also changes the results slightly)
537      - add a few "_d 0" where they had been missing in seaice_evp.F
538      - cleaning up: remove unused seaice_calc_rhs.F
539    o pkg/exf: some cleaning-up:
540      - change various "constants" into runtime parameters
541      - cleaned-up Large&Yeager04 routine which should eventually
542        replace exf_bulkformulae.F (changed names of S/R and CPP)
543        and merged various ALLOW_ATM_WIND options
544     only used with thsice pkg (in thsice_get_exf.F):
545      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
546        which are used when useStabilityFct_overIce=TRUE (= the default)
547      - change default values of ice & snow emissivity and scale downward LW
548        by ice & snow emissivity.
549    o pkg/thsice:
550     fix few little problems, in thsice_calc_thickn.F:
551      - growth vertically (and not laterally) if iceFrac == iceMaskMax
552      - melt only laterally if hIce < hThinIce (as the comments say)
553      and in thsice_extend.F:
554      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
555      - start to form ice as soon as the minimum ice-volume is reachable.
556     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
557      and cpl_aim+ocn
558    o pkg/kpp
559     - move computation of surface related input fields to KPP into a new
560       subroutine kpp_forcing_surf.F
561     - remove wrong (within bi,bj loops) EXCH calls.
562     - little cleaning (add argument myThid in last position, cvs header ...)
563     - for now, fix conservation problem by exchanging KPPviscAz (may not
564       be the best fix)
565    o pkg/seaice
566     - check for inconsistent evp parameter/cpp-flag combination
567     - remove leftover errIO flat for obsolete name list error handling
568    o OpenAD
569     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
570    
571    checkpoint59a
572    o pkg/seaice: some parameter clarifications and a little bit of clean up
573    o pkg/thsice: rename run-time parameters:
574       himin       -> hIceMin
575       himin0      -> hThinIce
576       hihig       -> hThickIce
577       i0          -> i0swFrac
578       transCoef   -> bMeltCoef
579       frac_energy -> fracMelting
580      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
581       with default values (for now) that do not change the results.
582      remove old version of thsice vars advection in pkg/seaice.
583    o in FFIELDS.h:
584      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
585      - make pLoad & sIceLoad always available (but still only used if
586         ATMOSPHERIC_LOADING is #define).
587    o pkg/kpp: replaced _KPP_RL with _RL
588    o bug fixes for vertical diffusivity computations when both KPP and
589        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
590        are no longer updating the vertical diffusivity array
591        (passed as argument) but are (re-) setting those arrays.
592    o pkg/seaice: fix bug in evp solver, while doing that
593      - change (improve?) discretization of stress computations for both
594        cgrid-lsr and evp solver
595      - add a new routine to compute strain rates
596      - the above changes lab_sea results
597      - add no slip conditions for evp solver (off by default), lsr-version
598        may follow
599      - fix exchange for shear at Z-points (does not change lab_sea)
600      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
601        (to force the user to pick a time step since there is not "safe" way
602        of choosing it)
603      - add principal stress diagnostics
604      - rearrange fields for evp a little to avoid having to call a: too many
605        exchanges and b: exchanges for stress trensor components which we do
606        not have.
607      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
608        of evp, complete rewrite for lsr case (latter is does not yet work
609        in all cases)
610    o pkg/kpp: add code to have mixing in shelf ice caverns
611      - add myThid to all kpp routines (long overdue)
612    
613    checkpoint59
614    o pkg/exf:
615      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
616        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
617      - move exf header files from lower_case.h to UPPER_CASE.h ;
618        add missing cvs Header & Name
619      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
620      - add namelist param. selectStressGridPosition, exf_monFreq
621      - retire many _CLIM routines, and remove data.exf_clim
622        + params moved to data.exf
623        + climsst, climsss now handled by exf_set_gen, i.e.
624          climss?period=0 refers to constant field,
625          climss?period=-12 to monthly forcing
626      - split up namelists in data.exf
627    o pkg/seaice:
628      - remove seaice_exch and seaice_exch_uv
629      - remove superfluous exchange of theta
630      - add myThid to seaice_budget_ocean/ice
631      - add new interface for atmospheric wind forcing (C-grid only)
632        + new routine
633        + two new field (taux, tauy for stress over ice)
634        + removed one global field (DAIRN) for C-grid case only
635    o pkg/thsise
636      - 2nd set of modifs for thsice adjoint in conjunction with exf
637    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
638    
639    checkpoint58y_post
640    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
641      vertical diffusivity, similar to that in MOM4; turned on using
642      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
643      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
644    o Added capability for 3D specification of background vertical diffusion
645      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
646      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
647      "data" file that contains the 3D vertical diffusivity coefficients.
648    o ice dynamics (pkg/seaice) with thsice thermodynamics:
649      - add code within pkg thsice to advect & diffuse sea-ice fields
650      similar to (and will replace) what has been added in  seaice_advdiff.F,
651      but: - conserving Mass, Heat & Salt.
652           - better when using non-linear advection scheme (not yet fully tested)
653           - can also be used in atmospheric set-up (for now, only the diffusion).
654    
655    checkpoint58x_post
656    o IO option for global-file compact format:
657      - add options when generating topology (utils/exch2/matlab-topology-generator)
658      - add I/O capability (pkg/mdsio).
659      - adapt utils/matlab/rdmds.m to read this format.
660      for now long-line format not yet supported by pkg/mdsio (& exch2).
661    o shelfice: add a few diagnostics
662    
663    checkpoint58w_post
664    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
665      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
666      (and replace horiVertRatio in NH code).
667      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
668                         and tutorial_plume_on_slope (sensitive to truncation)
669    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
670      directly to drive seaice model (C-grid only)
671    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
672     - reintroduce computation of wind from stress,
673     - compute tau (in exf_bulkformulae.F) from windstress averaged to
674       mass points to avoid tau = 0
675     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
676    o rdmnc.m: make it work with "global" files created with gluemnc
677    o rdmnc.m : some improvements in dealing with singleton dimension
678      (tested on all testreport mnc output files).
679    o genmake2: disable pkg/profiles if netcdf test fails.
680    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
681    o move call to cal_readparms up to make calendar parameters/variable available
682      to all packages
683    
684    checkpoint58v_post
685    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
686      useDynP_inEos_Zc tested.
687    o pkg/exf: changes to properly interpolate/mask/scale initial fields
688    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
689      and portions thereof.  See read_cs.txt for description and examples.
690    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
691      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
692      following the great-circle arc between those 2 points.
693    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
694      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
695    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
696     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
697     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
698     - still needs work (not working with some options ; efficiency to improve)
699       and serious testing.
700     - use this scheme for temperature & salinity in 2 advection test exp.:
701       advect_xy & advect_xz, respectively.
702    
703    checkpoint58u_post
704    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
705    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
706    o testreport: add option "-skipdir" to skip some test.
707    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
708      momentum calculation.
709    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
710    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
711      remove checkpoint.F and the_correction_step.F (no longer used);
712      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
713    o add option (linFSConserveTr) to correct for tracer source/sink due to
714      Linear Free surface
715    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
716    o pkg/thsice: fix reading mnc-pickups
717    
718    checkpoint58t_post
719    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
720    o pkg/mdsio:
721     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
722       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
723       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
724     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
725     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
726       either MDS_READ_FIELD or MDS_WRITE_FIELD )
727     - new S/R (to replace MDSWRITEMETA), which allows to write more
728       informations (variable names, time ...) to meta files.
729     - modify rdmds.m to give back the meta file content.
730    o pkg/diagnostics: change vertical interpolation to be safer, and more
731       flexible (define p-levels to interpolate to in data.diagnostics);
732      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
733       diagnostic pointer.
734    o pkg/seaice: more cleaning up of seaice_growth, added many comments
735    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
736    o fix multi-category seaice:
737     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
738       SEAICE_MULTICATEGORY
739     - fix short wave heat flux
740    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
741       and allow to use EVP solver. Change forward lab_sea: test both EVP
742       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
743    o Initial check-in of lab_sea adjoint
744      (very similar to natl_box_adjoint/code_seaice)
745      * used C-grid and EVP solver
746      * used KPP, GM/Redi
747      * uses inAdExact=.TRUE.
748      * gradient checks fail for both ADM and TLM
749        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
750        f.d. gradients actually seem more problematic than ADM, TLM gradients;
751        issue is related to forward mismatch between g77 an ifort
752    o pkg/seaice: overhaul of thermodynamics
753     - growth.F and groatb.F are replaced by new routine seaice_growth.F
754     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
755     - move a few global fields out of SEAICE.h into seaice_growth.F and
756       make them 2D (FICE/QNETO/ ...)
757     - remove FO (it is the same as QNETO)
758     - introduce a few local fields to avoid modifying external fields such
759       as atemp, etc.
760    
761    checkpoint58s_post
762    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
763      changed exf_set_gen.F so that
764        genperiod=0 means input file is one time-constant field and
765        genperiod=-12 means input file contains 12 monthly means
766    o CG2D: use pre-computed solver main-diagonal (stored in common block);
767      this affects truncation error ; generate new output file for exp. which
768      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
769        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
770        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
771        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
772        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
773        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
774    o start implementation of deep-atmosphere and anelastic formulation
775    o verification: remove 2nd copy of input files and use script "prepare_run"
776      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
777    o mom_common/vecinv/fluxform: fix a few initialisation isssues
778    o profiles: fix for multithreaded case
779    
780    o diagnostics: rename few diags:
781      s/'PRESSURE'/'RCENTER '/g
782      s/'TICE    '/'oceFreez'/g
783      s/'TAUX    '/'oceTAUX '/g
784      s/'TAUY    '/'oceTAUY '/g
785      s/'SWFLUX  '/'oceQsw  '/g
786      s/DIFx/DFxE/g
787      s/DIFy/DFyE/g
788      and add few ocean-forcing diagnostics:
789      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
790    o modifications to pkg/seaice/growth.F and budget.F, which change results of
791      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
792      as actual snow thickness.  It now refers everywhere to effective snow
793      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
794    
795    checkpoint58r_post
796    o modifications to pkg/seaice/growth.F, which change results of
797      lab_sea experiment: fixes pertain to melting snow over open water, to
798      masking EVAP under sea ice, and to using the correct AREA variable for
799      computations of EVAP, PRECIP, HSNOW, and GHEFF
800    o add ability to read bathy, salt, and theta using MNC (off by def)
801    o add flooding algorithm and advection of HSNOW for pkg/seaice;
802      both are turned off by default and do no change any results
803    o seaice advection with pkg/thsice: a step toward the use of non-linear
804      advection scheme, but #ifdef or commented out for now (requires more EXCH).
805    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
806      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
807      in natl_box (affects results @ truncation level: update output.txt)
808    o multi-threading and IO:
809      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
810      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
811        (needed to work with SingleCpuIO): tested in all verif. exp.
812    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
813      affects the results (but none of the verification test uses this scheme).
814    o Adding some pkg/diagnostics capability to pkg/seaice
815      (will certainly be subject to changes)
816    o ctrl: adding new control variables:
817      lwflux, lwdown, evap, snowprecip, apressure, runoff
818    
819    checkpoint58q_post
820    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
821      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
822      high_res_cube configuration by 4% on Columbia.
823    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
824      add (in global_with_exf/code) a version of EXF_INTERP_READ without
825      dynamical allocation (seems to work in multi-threaded).
826    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
827      single CPU io) so that TAF does not have to see EESUPPORT.h
828    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
829    
830    checkpoint58p_post
831    o obcs: stop if obcs is used with useCDscheme = .true.
832    o shelfice:
833     - fix a sign error so that no slip at shelfice interface works
834     - remove stop for combination non-hydrostatic code and shelfice. That does
835       not mean, that the results are correct, but at least they are numerically
836       stable
837    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
838    o added adjoint exch routined for all exch*3d* routines
839      and updated flow directives
840    
841    checkpoint58o_post
842    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
843      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
844    o change controling S/R for writing pickup file (new S/R do_write_pickup)
845      and clean-up reading/writing of pickup files.
846    o fix local version of read/write pickup (NH part) in rotating_tank/code
847    o simplify EXCH interface:
848     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
849     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
850    o added the regrid package
851    o shelfice:
852     - add a simple boundary layer scheme to reduce noise
853     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
854    
855    checkpoint58n_post
856    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
857       local variable (not in common block).
858    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
859      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
860      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
861        to work with SingleCpuIO.
862    o add "_d 0" to real constant of pkg/cfc subroutines ;
863       update exp. cfc_exemple & tutorial_cfc_offline output files.
864    o multi-threading and IO:
865      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
866        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
867      - barrier before and after reading.
868      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
869      - avoid using MDS_WRITELOCAL for LAND pkg output.
870      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
871        common-block variables ; Allows multi-threading with master-thread IO.
872    o change default MAX_NO_THREADS from 32 to 4 ;
873      and stop cleanly when MAX_NO_THREADS is too small.
874    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
875    
876    checkpoint58m_post
877    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
878       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
879    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
880       keep global_ocean.90x40x15 (for AD testing) with former secondary test
881       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
882    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
883        add MITgcm_tutorials (= code + all the tutorials)
884    o ecco, option to compute cost for total ssh (mean+anom)
885    o consistent with addition of ptracer and ssh in pkg/profiles
886    o profiles: adding ptracer and ssh
887    o testreport: change multi-test output-file name
888      (from output.txt.{name} to output.{name}.txt)
889    o profiles: now ok for mutli-tiles case
890    o seaice: add 4 parameters for different advection schemes for area,
891      (effective) seaice thickness, enthalphy, and snow height. Their default
892      is the standard parameter SEAICEadvScheme
893    o calc_gw:
894     - add cosFacU in zonal viscous flux (harmonic.visc.).
895     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
896       of tutorial_plume_on_slope.
897    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
898    o calc_gw: true flux-form, account for horizontal grid spacing.
899      update rotating_tank results, but not plume_on_slope (affected at
900      truncation level, 11 digits).
901    
902    checkpoint58l_post
903    o calc_gw:
904     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
905     - remove side-drag for now (need to fix it); update plume_on_slope results.
906     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
907    o commit code to make SST/SSS weights spatially variable
908      (based on either variable in-situ or variable initial T/S weights)
909    o pkg/ecco:
910      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
911        now based on horizontally varying weights wthetaLev, wsaltLev
912      * cost_averagesflags now returns year indices in addition to day, month
913      * sflux balance is performed on annual basis
914        (sflxumm, sfluxmm2, bal_sfluxmm)
915      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
916        including separate counting and multipliers
917    o pkg/rbcs
918      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
919    
920    checkpoint58k_post
921    o testreport:
922     - always build in dir. "build" (if not there, mkdir build instead of building
923       & running in input)
924     - run in dir run (if it exists), in build otherwise.
925     - call prepare_run (if input/prepare_run exists)
926     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
927    o pkg/exf modifications to interpolation and rotation routines for more
928       reasonable treatment of North Pole singularity: for tracers North Pole
929       value is set to northernmost zonal-mean value, for zonal velocity it is
930       set to zero, and for meridional velocity it is set to northernmost value.
931    o pkg/exf/exf_check_range.F
932     - add tile index to diagnostics and move stop statement to the very
933       end of the routine.
934    o pkg/diagnostics: (diagnostics_main_init.F)
935      define title of isomorphic variables according to the current config.
936    o pkg/thsice with pkg/seaice dynamics:
937    - fix domain of computation (interior only, required for exf) and do exchanges
938    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
939    o towards a standard way of dealing with multi-threading in MONITOR
940      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
941    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
942       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
943    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
944    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
945    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
946       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
947    o tracer advection:
948     - clean-up and simplify calc_common_factors.F
949     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
950       advection subroutine (but still not used within DST advection S/R)
951    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
952    
953    checkpoint58j_post
954    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
955      from file (collects calls previously in FORWARD_STEP)
956    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
957    o adjoint store dir. adjusted accordingly
958    o genmake2
959      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
960    
961    checkpoint58i_post
962    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
963      on wind stress (SEAICEstressFactor defaults to 1.)
964    o Total number of Timers is finite (<=40): comment out 2 non-essential one
965      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
966    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
967      on CS-grid: no longer loosing mass.
968    o exf & curvilinear-grid: no longer modify longitude xC & xG.
969    o pkg/ggl90: fix sloppy output and fix a bug
970    o pkg/seaice: added SEAICEuseEVPpickup parameter
971      - Set to false in order to start EVP solver with
972        non-EVP pickup files when using SEAICEuseEVP
973      - fix sign error in diffusion in seaice_calc_rhs
974    
975    checkpoint58h_post
976    * Modifications for bottom topography control
977      o replace hFacC by _hFacC at various places
978      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
979      o add non-self-adjoint cg2d_nsa
980      o update autodiff support routines
981      o re-initialise hfac after ctrl_depth_ini
982      o works for 5x5 box, doesnt work for global_ocean.90x40x15
983    * Adding verification for 5x5 box (4-layer) bottom topography control
984    
985    checkpoint58g_post
986    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
987       used for mean seasonal cycle, mean diurnal cycle); add an example
988       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
989    o pkg/ggl90:
990      - add parameter (minimum surface kinetic energy)
991      - fix bug (avoiding division by zero)
992    o couple pkg/thsice to pkg/seaice:
993      - modify advection in seaice to accomodate new scalar fields to be advected
994      - only muliDimAdection scheme work with seaice/thsice
995      - mapping of thsice-variables to seaice-variables, back and forth
996      - does not break the verification experiments, but does not give the
997        desired results either
998    o pkg/seaice
999      - make (default) second order advection a bit less confusing?
1000    
1001    checkpoint58f_post
1002    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1003      to pkg/seaice):
1004      - new routines thsice_map_exf and thsice_get_exf provide the interface
1005      - add an additional formal parameter to thsice_solve4temp
1006    o pkg/exf:
1007      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1008      - correct Stefan-Boltzmann constant
1009      - new parameter for longwave surface emittance
1010      - separate some stuff from exf_bulkformulae into new routines  
1011        exf_radiation, exf_wind
1012      - add new parameters and constants: longwave emissivity for ocean, ice
1013        and snow, evaporation parameters over ice
1014      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1015        either wind from stress or stress from wind
1016    o pkg/thSIce:
1017    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1018    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1019       and THSICE_CALC_THICKN
1020    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1021    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1022      to make debugging easier.
1023    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1024    o pkg/bulk_force:
1025      - clean-up comments and parameters ;
1026      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1027    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1028      generate new output for test-experiment: aim.5l_cs.thSI
1029    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1030      testreport accordingly
1031    
1032    checkpoint58e_post
1033    o SEAICE_CGRID adjoint done
1034    o R_STAR adjoint implemented.
1035      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1036      * need to sort out init. of h0facc, etc.
1037    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1038      to be able to use it in pure forward.
1039    
1040    checkpoint58d_post
1041    o upgrade simple test-experiment to tutorial example:
1042     step.1: duplicate the experiment and (step.2) will remove the old copy.
1043      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1044      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1045      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1046      tutorial_global_oce_biogeo    <- copy of dic_example
1047      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1048      tutorial_plume_on_slope       <- copy of plume_on_slope
1049      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1050      tutorial_global_oce_optim     <- empty for now (David ?)
1051      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1052     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1053    o correct a sign problem in cost_scat.F
1054    o obcs and ptracers: fix boundary conditions for advections schemes
1055      with larger stencil
1056    o thsice adjoint: start
1057    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1058      completeness
1059    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1060      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1061    o ptracers adjoint:
1062      * avoid extensive recomputatations
1063      * fix missing re-init. of gptr (missed by TAF)
1064    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1065      me to turn off the excessive output to STDOUT that this package produces
1066    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1067      and add those terms in Vector-Invariant formulation.
1068    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1069      if the control period (xx_hfluxperiod etc) is 0
1070    o in profiles pkg, clean routines and fix details
1071    o in ecco pkg, reading ssh data:
1072      fix problem in case the model does not start at iter0=0
1073    o fix mnc-pickup/restart for ptracers
1074    o new package prifiles:
1075      code to compute profile-based cost by Gael Forget
1076      (modifs in ecco, ctrl, autodiff)
1077    o Benign bug fix in initialization (spotted by M. Mazloff) of
1078      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1079    
1080    checkpoint58c_post
1081    o adjoint: finish NLFS adjoint and provide reference output in
1082      verification/global_ocean.90x40x15/results_ad_nlfs
1083    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1084      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1085      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1086      with SEAICE_CGRID defined.
1087    o move calendarDumps from "data" to "data.cal" and clean-up the code
1088      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1089    o add useEXF & useCAL flags (for now, set in hard-coded way)
1090    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1091      (were missing in NH mode, and wrong in quasihydrostatic mode).
1092      waiting for Chris updated version of calc_gw to add those CALLs.
1093    o fix bug in quasihydrostatic S/R ;
1094      add a test for this option: global_ocean.90x40x15.qshyd
1095    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1096      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1097    o add on/off flag useOffLine for package OFFLINE
1098    o seaice:
1099      - modify advection so that it works also on the C-grid
1100      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1101        problem in multi-tile runs with C-grid
1102      - add flags for clipping ice velocities and/or masking solver forcing
1103      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1104        C-grid solver
1105      - added a few comments to seaice_diffusion.F
1106      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1107        are now exclusive)
1108      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1109        required re-ordering the code a little:
1110       + make DAIRN global variable (defined in SEAICE)
1111       + move computation of the viscosities eta and zeta into a new separate
1112         routine (because I need to recompute them in seaice_ocean_stress.F)
1113    
1114    checkpoint58b_post
1115    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1116      update output.txt of exp. aim.5l_cs.thSI
1117    o various mnc cleanups and improvements:
1118      + shrink lookup tables by factor of ~4
1119      + better error reporting when running out of lookup space
1120      + able to handle longer path/file names (up to 500 chars)
1121    o adjoint:
1122      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1123      - TBD: "hidden" mom_vecinv recomp. in dynamics
1124    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1125     (allow to differentiate between forcing components using new integer flags:
1126      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1127     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1128    o ecco
1129      - enable trend removal from SSH anomaly obs.
1130    o adjoint
1131      - a fix for PmEpR when #undef EXACT_CONSERV
1132      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1133      - try to fix "hidden" recomp. in forward_step for NLFS
1134        (NLFS seems broken sometimes after I checked it in)
1135    o seaice:
1136     - add c-grid version of the dynamic solver:
1137       + three new routines that are the c-grid substitute lsr, dynsolver
1138         and ostres
1139       + put a few fields that were local to dynsolver into global common
1140         blocks, so that I can move the computation of stresses etc into
1141         seaice_lsr (saves coding but may break the adjoint).
1142     - replace more hardwired parameters by runtime parameters
1143     - add ice masks that mask the rhs of the implicit solvers where there
1144       is no ice (commented out in seaice_dynsolver, because i am not sure
1145       if this works properly), eventually this should replace the clipping
1146       of ice velocities in seaice_dynsolver to +/-40cm/s.
1147    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1148      include it only where its needed
1149    o move balancing of fluxes before the call of external_forcing_surf
1150    o seaice:
1151      - correct units of turning angles (now they are really in degrees)
1152      - move computation of GWATX/Y out of main routine into dynsolver
1153      - initialize GWATX/Y in seaice_init
1154    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1155      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1156    o seaice: add runtime flags for turning angles (default to zero)
1157    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1158      and trend from exf forcing and ctrl control adjustments
1159    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1160      (since checkpoint57x_post)
1161    o change the default rotation period to 86164.s = the Earth rotation
1162    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1163      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1164    o seaice advection: add code for choosing between the default (2nd order
1165      central differences) and multiDim advection schemes provided by
1166      pkg/generic_advdiff
1167    o seaice:
1168      - removed all references to SEAICE_GRID.h fields from
1169        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1170        (cubed-sphere configuration will change a little)
1171      - grid computations in seaice_init are obsolete now.
1172      - cleaned up code a little so that is easier to read (hopefully).
1173      - added new (better?) discretizations of default advection and diffusion
1174        (turn on with SEAICEuseFluxForm)
1175      - replace 1 in 3d global fields by kSurface in growth.F
1176      
1177    checkpoint58a_post
1178    o seaice:
1179      - bug fix in advect.F
1180    o shelfice:
1181      - separate shelfice load anomaly from pload (breaks with time
1182        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1183        Its default is 0., but it may be computed more cleverly from (unknown)
1184        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1185        done offline. A good approximation of the pressure load anomaly is
1186        necessary to avoid large initial adjustment processes underneath
1187        deep-reaching shelfice.
1188      - small fix in ISOMIP shelfice_thermodynamics
1189      - add more sophisticated thermodynamics of Hellmer (1989), this is
1190        now the default
1191      - give a few constants more intuitive names
1192    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1193      if bulk formulae are used in long integration (especially EmPmR). Turn
1194      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1195      if balancePrintMean, the imbalance that is substracted is printed to
1196      STDOUT.
1197    o fix bug (typo) in obcs_apply_eta.F
1198    o add a new package shelfice which enables us to model the circulation
1199      underneath shelf-ice with draughts of hundreds of meters.
1200     - works
1201     - to do: + include improved thermodynamics
1202              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1203                instead of new field kTopC
1204              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1205                instead of new field R_shelfIce and new code in ini_depth.F
1206                and ini_mask_etc.F?
1207              + adjust vertical mixing schemes?
1208    o seaice pkg:
1209     - add a cpp-flag to include a simple formula for a salinity dependent
1210       freezing point of sea water at the surface
1211     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1212       meridional stresses are now different (and hopefully correct)
1213    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1214       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1215       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1216    o pkg/diagnostics: add options and parameters for regional-statistics
1217       diagnostics ; define regions by reading a region-mask from a file
1218       (might add other options later)
1219    o pkg/bulk_force:
1220     - add option and parameters to use AIM surface-flux formulae.
1221     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1222       others forcing fields (defined in PARM05, parameter file "data") are loaded
1223       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1224     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1225     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1226     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1227       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1228     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1229    
1230    checkpoint58
1231    o add "--embed-source" option to genmake2 which, when the supporting
1232      tools can be compiled (as determined by genmake2) will turn on the
1233      embed_files package which then embeds the entire MITgcm source code
1234      (*.[fFhc] + Makefile) used for the build within the executable
1235      - requested by CNH but off by default
1236      - adds a paltry <9MB to the mitgcmuv executable in most cases
1237      - only writes the output when useEMBEDSRC in eedata is true
1238    o clean up 3-dim. relaxation codes:
1239      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1240      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1241      * Thanks to Tom Haine for testing!
1242    
1243    checkpoint57z_post
1244    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1245      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1246    o fix the pickup behavior for obcs in combination with ptracers
1247    o fix a bug in ptracers_external_fields_load
1248    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1249      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1250    o transfered surface NH pressure to eta field (if exactConserv).
1251    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1252         and update lab_sea output.txt file.
1253    o completing 3-dim. relaxation code: additional term
1254         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1255      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1256      * At compile time, in "EXF_OPTIONS.h" set
1257          #define  ALLOW_CLIMTEMP_RELAXATION
1258          #define  ALLOW_CLIMSALT_RELAXATION
1259      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1260          tauThetaClimRelax3Dim = 15552000.0,
1261          tauSaltClimRelax3Dim  = 15552000.0,
1262      * 3 cases:
1263          1) Use a constant-in-time 3-dim. field
1264          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1265          3) Real-time relax. to time-evolving prescribed field
1266    o Adding Laplacian-type smoothness constraint on
1267      initial and boundary (forcing) controls (ic, bc)
1268      * enable at compile-time via
1269        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1270      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1271      * Absolute scale somewhat unclear so far
1272      * no area weighting was included since no other cost term does so far
1273    
1274    checkpoint57y_post
1275    First step for a NLFS adjoint
1276    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1277    o new init. routines for calc_r_star, calc_surf_dr
1278    o still need to deal with ini_masks_etc
1279    o testreport seemed happy
1280    checkpoint57y_pre
1281    
1282    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1283    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1284    o add new offset feature to offline pkg (plus minor cleanup)
1285    o cfc fixes for final year of integration
1286    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1287      be in GCHEM_OPTIONS).
1288    
1289    checkpoint57x_post
1290    o fix testreport Pb in multiple test experiment.
1291    o cleanup our namelist syntax in verification:
1292      - make it more F95 standards compliant (some work still needed)
1293      - allows the vast majority of our tests to work with gfortran
1294    o Non-Hydrostatic:
1295     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1296     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1297    o Allow to apply AB on T,S rather than on AB(gT,gS):
1298     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1299     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1300       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1301     - need a "clever" read_pickup to restart from the other AB formulation
1302    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1303    o remove some unused variables (reduces number of compiler warnings)
1304    o adjoint
1305      * Disable useVariableViscosity for adjoint for time being
1306        (there are a number of extensive recomputations)
1307      * Initialize certain variables needed for adjoint
1308    
1309    checkpoint57w_post
1310    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1311                 fix the singleCpuIO RS version of MDSWRITEFIELD
1312       and add a WARNING if using globalFiles=T with multi-processors.
1313    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1314      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1315    o tracer advection scheme:
1316      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1317       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1318       was not very convenient).
1319      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1320       (further tests needed for the implicit DST & Flux-Limiter schemes).
1321    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1322      and sRef for convenience, handy, when you want to initialize
1323      ptracers in a large domain with a constant non-zero value. Also,
1324      untangle ptracers_init.F a little.
1325    
1326    checkpoint57v_post
1327    o change dome exp. to use variable viscosity in side-drag terms.
1328    o remove all the files from the cfc_offline test since they are now
1329      incorporated into tutorial_cfc_offline which has been producing
1330      identical results for a few days of testing
1331    o add new parameter: sideDragFactor to enable half-slip-side BC
1332      and change side-drag S/R to use viscosity from mom_calc_visc
1333      (can switch back by setting sideDragFactor=0.); affects results at
1334      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1335       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1336    o vorticity & strain are now computed without masking, to account for
1337      no-slip-side BC in variable viscosity calculation ; mask is applied
1338      anyway later on, before computing advection/coriolis terms.
1339    o modify exp4 to test new obcs support for reading from external files
1340      and for passive tracers
1341    o fix behavior of ptracers_monitor when monitor output is written to a
1342      netcdf-file; still not independent of monitor.F (writes in the same
1343      file).
1344    o change default value of tRef (put a uniform, meaningful value for ocean
1345      & atmos) and initialize sRef (was missing, as Martin mentioned).
1346    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1347      to be proportional to enstrophy dissipation length.  Thus,
1348       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1349      This is now consistent with Smagorinsky and with the manual.
1350    
1351    checkpoint57u_post
1352    o OBCS and PTRACERS: add open boundary support for passive tracers
1353      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1354        OB-values from file; this is not different from the way theta and salinity
1355        are treated
1356      - however, Orlanski-radiation conditions are not supported, and the model
1357        will stop if you use pTracers and Orlanski at the same time.
1358      - beefed up the rountine obcs_external_fields_load: now only those open
1359        boundary values are overwritten with values from files for which there
1360        are really files, otherwise the OB-fields remain untouched. This makes
1361        it possible to use different OBs at different ends of the domain (as
1362        with EXF)
1363    o reduce number of exch calls in shap_filt (s2).
1364    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1365      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1366    
1367    checkpoint57t_post
1368    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1369    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1370      same truncation, independent of the face number: affects affects several
1371      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1372    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1373      note that biharmonic viscosity + no-slip was not tested in any experiment.
1374    o fix bug in non-linear free-surf side-drag ; generate new output for
1375      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1376    o make mnc honor the writeBinaryPrec flag for most kinds of output
1377    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1378    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1379      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1380    o add brackets in multi-terms sum to get same truncation, independent of
1381      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1382      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1383    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1384      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1385      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1386      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1387      Suggested values of viscosity parameters found in mom_calc_visc.
1388      Many new viscosity diagnostics available.
1389    
1390    checkpoint57s_post
1391    o Add clearing-house for viscosity calculations, mom_calc_visc and
1392      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1393      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1394      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1395      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1396      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1397      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1398      ViscAhStrain and viscAhTension are now retired.
1399    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1400    o In response to JMC's bug report, genmake2 now ignores any soft-links
1401      that it finds in the *current* directory when searching for files.
1402      Soft-links found in any other source directories will still work as
1403      they did before.
1404    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1405      a C routine to unlimit the stack size
1406    o mnc-ify pkg/aim snapshot vars
1407    o mnc-ify pkg/land as requested by Daniel
1408    o various changes to mnc including:
1409      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1410      - output can now be grouped so that all files within a group
1411          change the ITER portion of their names in lock-step together
1412      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1413          and works with both EXCH1 and EXCH2 (but needs more testing)
1414      - writing works for all verification test cases w/ g77 on Linux
1415    
1416    checkpoint57r_post
1417    o make MNC variable initialization happen earlier
1418    o add diagnostics for (almost) each term of the momentum Eq.
1419    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1420    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1421    o remove MINIMAL_TAVE_OUTPUT option ;
1422      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1423    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1424      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1425    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1426    o add time-dependent SST, SSS control
1427    o cost terms in ecco/ modularized (new cost_generic.F)
1428    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1429    o new infrastructure for seaice model vs. obs misfits in seaice/
1430      * driver from the_main_loop.F is seaice_cost_driver.F
1431      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1432      * gradient check in Exp. 6a of natl_box_adjoint/
1433    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1434      (see README file)
1435    
1436    checkpoint57q_post
1437    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1438    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1439      - bug was reported by Jean-Michel and Ian Fenty
1440    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1441      update exp. cpl_aim+ocn output.
1442    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1443      Needed for high-res. runs with large global files
1444      to be able to limit tapelev size
1445    o Changed some tests for adjoint:
1446      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1447      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1448      * global_ocean.90x40x15/ back to default 3-level checkpointing
1449    o Modifications to enable scripted COMMON to MODULE conversion
1450      * verification/OpenAD/code/ has necessary scripts and description;
1451      * converts, compiles and runs successfully;
1452    
1453    checkpoint57p_post
1454    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1455    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1456      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1457    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1458    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1459      (was already the case for dissipation with mom_vecinv,
1460       and also the case for grad.PhiHyd when staggered-timeStep)
1461      This will allow to put dissipation out-off the AB time-stepping.
1462     Unfortunately, affects truncation error. Update output of exp. that "fails"
1463      (cg2d matching number) and leave the others for later: front_relax(10),
1464      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1465      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1466    
1467    checkpoint57o_post
1468    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1469      (2) its ready to be documented during the 20050801 DocFest
1470    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1471      for ideal_2D_oce and lab_sea on linux_ia32_g77
1472    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1473      in global1x1_tot/code_seaice_adj to access indices 32, 33
1474      (worth another tag)
1475    
1476    checkpoint57n_post
1477    o adding precip control xx_precip 32
1478    o adding swflux control xx_swflux 33
1479    o Replacing 10 forcing penalty cost routines by 1 generic.
1480    o Implementing partitioning in time-mean and variable adjustment
1481      for atmos. state.
1482    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1483    o in natl_box_adjoint:
1484      * updated exp 1 to 10
1485        (but does not have time-mean vs. variable split results yet)
1486    o updated global1x1/*_seaice_adj/
1487      to incorporate latest changes
1488    o enable useSingleCpuIO for mdsio vector routines
1489      (applies in particular to tapelev I/O)
1490    o removed inefficient K-loop in all active_file*control*.F
1491    
1492    checkpoint57m_post
1493    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1494      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1495    o pkg/exch2: filling of face-corner halo regions is optional
1496      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1497    
1498    checkpoint57l_post
1499     tag before updating tutorials (pre-release-2)
1500    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1501       for output and interpolation of input fields onto model grid)
1502    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1503       Affects results of exp. rotating_tank ; update output.txt.
1504    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1505          and taking the square quantity and/or using a fraction-weight field.
1506    o fix aim_diagnostics_init.F mate numbers.
1507    o add mnc output capability to diagnostics/diagstat and update
1508      our cvsignore files for the ACSII output generated
1509    
1510    checkpoint57k_post
1511    o lab_sea now uses diagnostics package and provides a suite of
1512      new EXF diagnostics output.
1513    
1514    checkpoint57j_post
1515    o exf
1516      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1517        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1518        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1519      * extended diagnostics output
1520        - now includes all EXF variables
1521        - hs, hl moved to common block
1522        - separate S/R for diagnostics, called after ctrl vector is added
1523        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1524        - EXFqnet contains true Qnet (i.e. includes qsw)
1525      * updated verif. lab_sea, global_with_exf
1526      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1527        to ensure that diagnostics sees a true EXFqnet
1528    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1529    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1530      several times with different frequencies.
1531    o mnc-ify the thsice package as requested by Daniel Enderton
1532      - the monitor--MNC output needs work
1533      - many attributes need to be added (most are currently blank)
1534    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1535      - many attributes need to be added (most are currently blank)
1536    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1537    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1538    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1539      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1540         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1541    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1542     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1543    
1544    checkpoint57i_post
1545    o Diagnostics package was changed: diagnostic allocation is now deactivated
1546      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1547    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1548      add 1rst Order upwind vertical Shear.
1549    o add a quick fix for A/B checkpointing in OFFLINE mode
1550    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1551      end-run around the C/Fortran linking horror in eesup/src/timers.F
1552    o added pkg/runclock: allows user to terminate run based on wall clock
1553    o added non-hydrostatic scaling parameter: nh_am2
1554    o pkg/my82: futile attempt to make results compiler-independent by adding
1555      some "_d 0", etc. no effect.
1556    o for mnc output, fill the 'T' coordinate var with myTime and create a
1557      separate 'iter' variable for iteration count
1558    o pkg/diagnostics:
1559      add new capability: output of Global/Regional & per-level statistics ;
1560      tested against monitor output (including land & thSIce) on various exp.
1561    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1562    
1563    checkpoint57h_done
1564      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1565      data.diagnostics, data.gchem, data.ptracers) is done.
1566    
1567    o pkg/diagnostics: prepare for Global/Regional statistics.
1568      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1569    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1570      and rename it: DIFFERENT_MULTIPLE
1571    
1572    checkpoint57h_post
1573    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1574    o pkg/diagnostics: change output frequency, now in seconds (instead
1575      of Nb of iterations). This requires to change data.diagnostics.
1576    checkpoint57h_pre
1577    
1578    o in mnc, let the user create the output dir if both mnc_outdir_date
1579      and mnc_outdir_num are false
1580    o add fflags() to pkg/diagnostics which allows one to specify, on a
1581      per-file basis, the file precision [default behavior is unchanged]
1582    o added diagnostics to pkg/kpp, including computation of mixed layer
1583      depth based on a temperature/density criterion
1584    o updated verification/natl_box to test the new pkg/kpp diagnostics
1585    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1586    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1587    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1588      not mnc -- this mistake was found by JMC and is now corrected
1589    
1590    checkpoint57g_post
1591    o add Adams-Bashforth 3rd Order time stepping:
1592      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1593      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1594    checkpoint57g_pre
1595    
1596    o make lambda[Theta,Salt]ClimRelax spatially varying
1597      (default remains spatially uniform constant based on tau)
1598    o added new control variables
1599      * init. uVel, vVel, etanN
1600      * lambda[Theta,Salt]ClimRelax
1601    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1602      (suggested by G. Forget)
1603    
1604    checkpoint57f_post
1605    o add parameter "baseTime" = model base time = time at iteration zero
1606      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1607      account for baseTime shift
1608    o move Coriolis arrays from PARAMS.h to GRID.h
1609    checkpoint57f_pre
1610    
1611    o mnc-ifying the seaice package
1612    o introduced an alternative length scale calculation for use in the limiting
1613      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1614    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1615    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1616      as well as grad(vort3).  Made it compatible with both approximate form
1617      for the cubed sphere and full form of these gradients.  Added flag
1618      useFullLeith to select between approximate and full form.  
1619    o add "d0" in getcon.F to reduce differences between compilers/platforms
1620      update output.txt of exp. fizhi-gridalt-hs
1621    o change port_rand funtion to allow to set the seed.
1622    o fix obscure MNC bug involving conversion between reals and integers
1623      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1624        new version is now more standards-compliant
1625    o adjoint-related modifications
1626      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1627      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1628      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1629    
1630    checkpoint57e_post
1631    o Adding eddy stress controls a la Ferreira et al.
1632    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1633    
1634    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1635      update output.txt of exp. fizhi-gridalt-hs
1636    o add more "Z" dimensions and associated coordinate vars to MNC
1637    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1638    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1639      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1640      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1641      months and years.  Requires pkg/cal.
1642    o diagnostics: add pickup functionality
1643      - off by default for backwards compatibility
1644      - current version only uses MDSIO -- MNC will be added
1645    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1646    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1647    
1648    checkpoint57d_post
1649    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1650    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1651      output from the diagnostics package
1652    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1653    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1654      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1655    o add coordinate variables to the MNC output from the diagnostics package
1656    o change MNC-flags default value: true when useMNC=TRUE
1657    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1658      the ability (off by default) to read the grid information using MNC
1659    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1660    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1661    o do snap-shot diagnostics at the middle of the time-interval (instead of
1662      at the end).
1663    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1664      new test for AIM with thSIce + slab-ocean
1665    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1666    o move state variable diagnostics to the beginning of the time step ;
1667      (note: still needs some work specially for snap-shot diagnostics)
1668      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1669    
1670    checkpoint57c_post
1671    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1672    o generate new output.txt files on faulks with g77 & the new -ieee option
1673    checkpoint57c_pre
1674    
1675    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1676      update output.txt of exp. global_ocean.90x40x15
1677    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1678      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1679    o add saltFlux(+File) forcing capability with periodicExternalForcing
1680    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1681    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1682    o improvements for the MNC output from DIAGNOSTICS:
1683      - correct handling of the unlimitied dimension
1684      - all dims now have associated coordinate variables
1685      - variables located at U, V, and Corner ("Z") points are now written
1686        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1687        *all* data points are output
1688    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1689    o added pkg/seaice/seaice_monitor.F
1690    o mdsio_readfield.F can now read files visible only to master MPI process.
1691    o pkg/seaice: some test code for ice-modified ocean stress
1692    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1693      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1694      spurious negative numbers for precipitation and humidity.  Will cause
1695      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1696    o pkg/ctrl/
1697      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1698        May be enabled via doPackDiag
1699      *  introduce z-scaling of
1700         + gradient (doZscalePack) and
1701         + control (doZscaleUnpack)
1702    o pkg/mdsio/
1703      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1704      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1705    
1706    checkpoint57b_post
1707    o simplify options in diagnostics_fill arguments (remove weird combinations)
1708    o fix MNC coordinate variables so that they now contain per-face index
1709      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1710      general, EXCH2 grids are only aligned to a "local" coordinate system
1711    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1712    o Implement instantaneous output within pkg diagnostics:
1713      setting a negative frequency in data.diagnostics produces
1714     "snap-shot" output (as opposed to time-average if freq > 0)
1715    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1716      NOTE: change ptracer diagnostics name: use 2 characters to work with
1717            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1718    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1719      becomes the coordinate variable for the 'T' dimension
1720    o add CF-style coordinate variables to MNC
1721      - just a first cut:  numbers are meaningless on the cubesphere and
1722        missing along the T axis but otherwise it works!
1723    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1724    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1725    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1726      this is based directly on what the model compute, so that the content of
1727      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1728    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1729    o clean up build options files for SunOS, in particular
1730      - remove -traditional from xmakedepend
1731      - change -xarch=v9 to -xarch=native for f77
1732      - restore use of make (not gmake)
1733      - add CC=gcc if using g77
1734    o changes per discussion of AM, JMC, & EH3 today:
1735      - move redundant "grid" variables out of "state" -- in preparation of
1736        creating proper CF-style coordinate variables and in recognition
1737        that any/all grid variables can be easily copied (eg. w/NCO) from
1738        the grid files into any of the other NetCDF files
1739      - *always* output grid variables with MDSIO (this will eventually be
1740        changed)
1741      - output MNC grid file if useMNC is true
1742    o every instance of _END_MASTER() has been found and replaced with
1743      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1744      preprocessors
1745    o re-arrange diagnostics pkg initialisation:
1746     - allow each package to extend the available diagnostics list
1747     - add some checking and fix small problems (multi-threaded, ...)
1748     - new S/R diagnostics_fill (replace fill_diagnostics):
1749       look through the short list of active diag. (instead of the long list)
1750       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1751    
1752    checkpoint57a_post
1753    o this set of changes restores TAMC compatibility
1754      tested for global_ocean.90x40x15 adjoint on trough
1755      (what a pain)
1756    
1757    checkpoint57a_pre
1758    o some modifs in tools/build_options for sunos
1759    o call ctrl_pack for ctrl at end for optimcycle=0
1760    
1761    checkpoint57
1762    o add horizontal bi-harmonic viscosity for vertical velocity
1763      - new parameter viscA4W (defaults to viscA4)
1764      - affects only non-hydrostatic code
1765      - to be done: no-slip lateral boundary conditions
1766    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1767    o implement Implicit Vertical advection for pTracers
1768    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1769      (implemented also for implicit vertical diffusion & advection)
1770    o OBCS: extend application of tracer open boundary conditions
1771      to a strip beyond the boundary of width Olx/Oly
1772    o add call monitor to TAF set of required calls (flow directives)
1773      and include in natl_box_adjoint
1774    o untangle a few ifdefs related to cost, ctrl, autodiff
1775      untangel a few ALLOW_ECCO_OPTIMIZATION
1776    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1777      (theta2, salt2 in ecco_cost_weights)
1778    
1779    checkpoint56c_post
1780    o OBCS as control variables
1781      - update ctrl_ad_diff.list, obcs_ad_diff.list
1782      - remove balance of obcs controls from default
1783      - fix index bug nobcs in ctrl_init
1784      - fix dummy fields filen in ctrl_pack
1785      - add dummy weights for obcs
1786    o lsopt: comment out fort.94 output
1787    o optim:
1788      - remove unnecessary header files
1789      - adjusted namelists
1790      - add xerbla.F to Makefile
1791    o exf:
1792      - multiple modifications of exf_check_range
1793      - unit change in exf_init_runoff from [m/year] to [m/s]
1794    o mdsio:
1795      - i/o-vector change debugLevel from debLevA to debLevB
1796    
1797    checkpoint56b_post
1798    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1799      is called from DO_THE_MODEL_IO
1800      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1801      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1802      - clean up PTRACERS_WRITE_TIMEAVE a little
1803    o add another verification experiment that tests both the cfc-pkg and
1804      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1805      reactive tendencies treated inline with regular timestepping
1806    o testreport previously did a lousy job of comparing small numbers, so
1807      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1808      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1809      testreport.
1810    o ptracers_monitor: bug fix for MPI
1811    
1812    checkpoint56a_post
1813    o GCHEM: finish reorganizating the package
1814      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1815        (introduces another 3D-array for each passive tracer, but only if
1816        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1817        gchemTendency is not needed because the timestep is done separately)
1818      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1819      - GCHEM is now---more or less cleanly---separate from PTRACERS
1820      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1821        so clear to me how that should be done in a general way.
1822    o CFC: improve formatting of output in CFC_ATMOS
1823    o PTRACERS:
1824      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1825        that ALL experiments with ptracers enable can be checked. This makes
1826        GCHEM_MONITOR obsolete.
1827      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1828        monitorFreq
1829      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1830    o add PTRACERS (PTR0[1-5]) to testreport output
1831    o exf_check_range:
1832      * default changed to .TRUE.
1833      * will check values for niter0 if debLevA, every timestep if debLevB
1834      * STOP in exf_check_range if 'out of range'
1835      * range chosen generous to allow for potential extema
1836      TBD: a version with stricter range
1837           permitted range would be runtime parameters
1838    o GMredi:
1839      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1840      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1841      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1842    o GCHEM:
1843      - move call to GCHEM_FORCING_SEP, so that it is now called before
1844        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1845      - introduced a useGCHEM runtime flag and applied it everywhere.
1846      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1847        this flag is now only visible within GCHEM-pkg routines.
1848      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1849        be replaced by a 3D array that is computed before thermodynamics; for
1850        this, the tracer ID iTracer had to be included into the parameter list
1851        of ptracers_forcing
1852      - set up forward_step to call gchem_forcing, that will replace
1853        gchem_forcing_int in ptracers_forcing
1854      - cleaning up
1855    o small cleaning of exch2: remove files that are also in eesupp/src
1856    
1857    checkpoint56
1858    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1859    o mnc: cleanup "full" files--fixes out-of-memory problem
1860    o ECCO-GODAE
1861      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1862      * fully merged and updated from SIO code
1863        windstress sign change affects
1864        - exf_inscal_[u/v]stress
1865        - sign of xx_tau[u/v] adjustments
1866        - signs in cost_scat
1867      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1868      * natl_box_adjoint updated and compressed
1869      * 2-level checkpoint switch added
1870        (tested in EXP. 1 of natl_box_adjoint)
1871      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1872    o SVD
1873      * first complete, non-hacked version for SVD calculations
1874      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1875        performed via direct access files admtlm_vector.it????
1876        (via ctrl_[un]pack)
1877      * optimcycle is used for ARPACK iteration counter
1878        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1879      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1880        and add linear transforms where necessary
1881      * controls are initial/final SST, SSS (can be extended; need to check
1882        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1883    o mdsio: filename info to both stderr, stdout
1884    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1885      from sign change
1886    
1887    checkpoint55j_post
1888    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1889      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1890    o add consistent build directories and .cvsignore files to verification
1891    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1892    o make all subroutines 30 or less characters in length for certain older
1893      compilers to work (a thorough search only turns up two routines in
1894      pkg/ptracers)
1895    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1896      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1897    
1898    checkpoint55i_post
1899    o change arrays for total vertical diffusivity (2.D if explicit,
1900      3.D if implicit) ; each ptracer uses its own background value.
1901    o added mnc/NetCDF output capability to ocn_compon_interf
1902      - added bits to verification/cpl_aim+ocn so that it can run on
1903        ITRDA and other clusters without the mpirun "-wd" option
1904    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1905      configuration
1906    o give MNC the ability to create additional files rather than
1907      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1908      - the default is just less than 2GB which is a practical limit
1909        on many systems
1910    o Compute the non-local term using either KPP vertical diffusivity (=default)
1911       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1912    
1913    checkpoint55h_post
1914    o add verification test "vermix"
1915    o remove all the *_ioinc flags and replace with the single global
1916      outputTypesInclusive flag
1917    o allow to set a vertical profile of vertical diffusivity for T & S
1918    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1919    o useMNC moved from data.mnc to data.pkg
1920    
1921    checkpoint55g_post
1922    o Renaming carbon AD experiments to comply with testreport conventions
1923    o Updating adjoint of Held-Suarez hs94.1x64x5
1924    o Fixing directives for non-ECCO forward_step, after ECCO directives
1925      have been fixed to avoid recomp. of do_oceanic_phys
1926      Works well for global_ocean.90x40x15,
1927      but recomp. issue remains for carbon
1928    o Updating adjoint output for natl_box_adjoint after
1929      pkg/ecco has been modified (see taga c55d_post)
1930    
1931    checkpoint55f_post
1932    o rename to timeave_init_fixed
1933    
1934    checkpoint55e_post
1935    o some delicate re-shuffle of store directives to avoid one
1936      extra call of do_oceanic_physics
1937      affects ecco_the_main_loop.F, do_oceanic_physics.F
1938      checkpoint_lev1_directives.h
1939    o NB: this may break global_ocean adjoint temporarily,
1940      but it is clear how to fix it. Will do later, need this now.
1941    
1942    checkpoint55d_post
1943    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1944    o ecco_cost_weights is modified to 1x1 runs
1945    o modifs to allow observations to be read in as
1946      single file or yearly files
1947    o enable to read exf forcing fields as either
1948      single file or yearly files (flag useExfYearlyFields)
1949    checkpoint55d_pre
1950    
1951    o switch between 2-level and 3-level checkpointing
1952    o add ability of MNC to write local and "partial" (eg. 2D slices where
1953      the full 3D field is never actually stored) arrays to NetCDF files
1954      with the correct (that is, the complete multi-dimensional) set of
1955      array indicies
1956      - used in mom_vecinv() to write the diagFreq output
1957      - tested (demonstrated) in verification/aim.5l_cs
1958    o further mnc-ification
1959      - add verification/lab_sea to the list with mnc setups
1960      - fix undefined mnc v-names in cd_code
1961      - add kpp to mnc output (both snapshot and timeave)
1962    o non-hydrostatic code
1963      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1964        in calc_gw.F
1965      - defaults to viscAh
1966      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1967        friction or Leith) in non-hydrostatic mode, as long as there is
1968        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1969    o pkg/cost
1970      extend simple cost functions to treat time mean quantities
1971      (T,U,V) via cost_accumulate_state from cost_tile
1972    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1973        be 2 times larger than the minimum size the advection scheme requires.
1974        now get a perfect conservation of salt in advect_cs test-exp (updated)
1975    o GGL90 (Gaspar's TKE mixed layer)
1976      - add horizontal diffusion of TKE, requires exchanges in
1977        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1978        default. In OPA there is no horizontal diffusion of TKE but the
1979        mixing coefficients are computed from a horizontal average of TKE of
1980        6 points or so. I think that diffusion has a little more physical
1981        justification.
1982      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1983        was in vain)
1984      - mask tke-variable in ggl90_init
1985    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1986    o fix biharmonic diffusion on CS-grid.
1987    o more obcs stuff
1988      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1989        for reading boundary values. This routine is called from
1990        obcs_prescribe_read
1991      - updated obcs_check
1992      - changed sponge layer relaxation parameter units for days to seconds
1993      - turned off sponge layer by default
1994      - changed argument list of OBCS_CALC to myTime+deltaTclock
1995      - fixed about 35 bugs in obcs_external_fields_load
1996    
1997    checkpoint55c_post
1998    o obcs stuff
1999      - new runtime flags useOBCSprescribe, useOBCSbalance
2000      - re-arranged obcs_calc
2001      - moved exf_getobcs to obcs_prescibe_read
2002        obcs_prescibe_read is called after ORLANSKI stuff
2003        and independent of it (executable can contain all).
2004      - updated obcs_check
2005      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2006        These may be necessary only if tangential velocities are
2007        prescribed at OB, not sure, needs testing.
2008    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2009      which simplifies the calls and passes the ifc check-bounds test
2010    
2011    checkpoint55b_post
2012    o add a 2D scalar, Z location, exchange_2 routine.
2013    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2014      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2015      affects advect_cs results (for the wrong reason): update output.txt
2016    o use a more standard discretization for biharmonic viscosity ;
2017     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2018      affects results of dome set-up: update output.txt
2019    o fix gad_advection.F (CubedSphere part), back to version 1.23
2020    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2021    
2022    checkpoint55a_post
2023    o merged code to
2024      * prescribe/read time-dependent open boundaries
2025        (works in conjunction with exf, cal)
2026      * sponge layer code for open boundaries
2027      * each boundary N/S/E/W now has its own CPP option
2028        (healthy for the adjoint)
2029    
2030    checkpoint55
2031    o up-to-date adjoint of previous breaks
2032      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2033      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2034      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2035      - carbon: * remove tr1-related adjoint verification
2036                * add ptracer as control variable
2037    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2038      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2039    
2040    checkpoint54f_post
2041    o in verification/carbin/ remove experiment related to
2042      ALLOW_PASSIVE_TRACER (array tr1 etc)
2043      code_ad/ input_ad/ results_ad
2044    
2045    o add two new packages
2046      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2047        + subject to optimization (memory)
2048      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2049        + subject to reordering (many GOTOs in the original code)
2050        + so far opps is called for every (i,j) point, and then operates in
2051          the vertical; one may want to reorder the scheme in order operate in
2052          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2053          fields)
2054    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2055      - all verification tests compile and run with linux_ia32_g77
2056      - defaults are compatible with current input files--nothing
2057        should change if you were not previously using MNC
2058      - MNC output has been added in numerous places (eg. timeave)
2059        but there are still a few writes not yet do-able with MNC
2060        (this is in progress)
2061      - flags now allow for either/or/both use of MDSIO and MNC and
2062        documentation will soon follow
2063      - numerous small formatting cleanups for ProTeX
2064    o add version info (via BUILD_INFO.h) to MNC and stdout
2065    
2066    checkpoint54e_post
2067    o add two new packages
2068      - pp81 (Packanowski and Philander, 1981), Richardson number and
2069        stratification dependent mixing
2070      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2071      - these scheme operate in a similar manner as KPP (without ghat, of
2072        course), however there is only one diffusivity that is used for both
2073        temperature and salinity (and passive tracers)ç
2074    o add offline package
2075    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2076      provided by Stephanie Dutkiewicz
2077    o genmake2: add ability to search for C compilers and cleanup test output
2078      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2079    
2080    checkpoint54d_post
2081    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2082    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2083      leading to additional shift by 5 days each year of integration
2084       (i.e. leading to considerable offset over the years)
2085    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2086    o start with no AB and no initial filtering (staggerTimeStep):
2087      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2088    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2089      (external loading & cpl import/export stay in forward_step.F)
2090    o update coupling interface to work with new staggerTimeStep
2091    o change MDSIO ptracers_pickup.
2092    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2093    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2094    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2095    
2096    checkpoint54c_post
2097    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2098      this affects (truncation error) output.txt of test-exp:
2099       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2100    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2101    o change Qnet to always be the net heat flux, (+upward).
2102      affects (truncation error) output of natl_box exp.: updated
2103    o define the max number of passive tracers in PTRACERS_SIZE.h
2104    o start to test mnc routinely in exp0
2105    o add sea-ice loading (sIceLoad) as a new forcing field.
2106    
2107    checkpoint54b_post
2108    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2109       impressive on Altix and Opteron systems)
2110    o diagnostics can now write NetCDF files through the mnc package
2111    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2112    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2113    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2114      affects (truncation error) output of lab_sea & natl_box exp.: updated
2115    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2116    
2117    checkpoint54a_post
2118    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2119    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2120    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2121    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2122      + internal_wave (shift in writing cg2d_ini_res)
2123    checkpoint54a_pre
2124    
2125    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2126      - modified verification/lab_sea and natl_box_adjoint accordingly
2127    
2128    checkpoint54
2129    checkpoint53g_post
2130    o prepare splitting of thermodynamics: store convect.counter in common block
2131    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2132      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2133    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2134    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2135    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2136    o restore adjointability
2137    
2138    checkpoint53f_post
2139    o modifications that affect AIM experiment results (update output.txt):
2140      - no advection of S at top interface Nr (pkg/generic_advdiff)
2141      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2142    o AIM pkg:
2143      - include stability function into surf.Flux derivative relative to Tsurf
2144      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2145    
2146    checkpoint53e_post
2147    o merged cylindrical coord configuration
2148    o added rotating_tank experiment
2149    checkpoint53e_pre
2150    
2151    checkpoint53d_post
2152    o faulks upgraded: re-generate output.txt that have changed:
2153       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2154    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2155    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2156    o added Sadourny discretization of Coriolis
2157      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2158      - re-enabled use of omega3 (useAbsVorticity)
2159    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2160      vector-invariant equations
2161      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2162    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2163      hopefully without new bugs
2164      - still to do: biharmonic friction for non-hydrostatic w
2165    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2166    o regenerated output for global_ocean_ebm (using -ieee)
2167    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2168      of mom_common/
2169      - simple re-arrangement of instructions within computing loop
2170    checkpoint53d_pre
2171    
2172    checkpoint53c_post
2173    o new version of coupler for AIM+thSIce and Ocean models
2174     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2175     - land: change Evaporation of snow
2176     - aim with thSIce: fix bug in snow-precip.
2177    o changes to calc_gw.F
2178     - bug fix for w^2 term near the bottom boundary
2179     - (hopefully) improve the lateral slip boundary condtions for use with
2180        partial/looped cells
2181      - because the bug fix changes two verification experiments anyway (exp5
2182        and plume on slope), change the lateral boundary condition from half slip
2183        to the value of no_slip_sides
2184    o ebm package wasnt quite up to the parallel task. Fixed that.
2185    o Adjoint of EBM package + verification
2186      * TLM OK
2187      * ADM not sufficient accuracy yet (needs further testing)
2188    
2189    checkpoint53b_post
2190    o Commiting new energy balance model to repository
2191      * package is pkg/ebm
2192      * verif. is verification/global_ocean_ebm
2193      * references are in ebm_driver.F
2194    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2195    C        Global thermohaline circulation. Part I:
2196    C        Sensitivity to atmospheric moisture transport.
2197    C        J. Climate 12(1), 71-82
2198    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2199    C        Global thermohaline circulation. Part II:
2200    C        Sensitivity with interactive transport.
2201    C        J. Climate 12(1), 83-91
2202    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2203    C        Destabilization of the thermohaline circulation
2204    C        by atmospheric eddy transports.
2205    C        J. Climate 7(12), 1870-1882
2206    o Will need long integration testing.
2207    checkpoint53b_pre
2208    
2209    o created pkg/mom_common in preparation for variable viscosity code
2210    o renamed and split ini_mnc_io
2211    o pkg/land: only liquid water can diffuse or run-off
2212    o AIM using land: soil wetness availability account for snow
2213    o added printMapIncludesZeros to EEPARMS namelist
2214    
2215    checkpoint53a_post
2216    o restore TAMC compatiility for exf_constants.h
2217      (no usage of _d in .h)
2218    o Additional storing in KPP in an attempt to fix
2219      TAMC problem with adjoint of KPP code.
2220      (no success...)
2221      Identical code works fine with TAF.
2222    o Fixed verification/natl_box_adjoint experiments.
2223      Initial conditions for Experiments 4 and 5 are now
2224      set to "SEAICE_initialHEFF=0", which is more reasonable,
2225      and hence gives results closer to that of Experiment 2.
2226      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2227    
2228    checkpoint53
2229    o stable checkpoint with up to date adjoint
2230      TLM tests only run for 1st grdchk at the moment. Its unclear if
2231      this is a code problem or a problem with resetting code for g_
2232      variables that is being autogenerated wrong.
2233      Otherwise:
2234       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2235       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2236         are both still in chaos following their security messes.
2237    
2238    checkpoint52n_post
2239    o various build (mostly genmake2) changes including:
2240      - ability to build/run more easily within Cygwin and MacOS X
2241      - more complicated Makefiles with a stronger dependence on Gnu Make
2242    o pkg/seaice modifications
2243      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2244        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2245        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2246      - changed proxy for geostrophic velocity and updated
2247        verification/lab_sea/results/* accordingly
2248      - removed ADI dynamic solver from pkg/seaice
2249      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2250        they caused a segmentation fault under certain circumstances
2251      - removed unused field WATR
2252    o bug fix in exf-package:
2253      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2254         now reflect that.
2255    o small fixes in the cal-package:
2256      - set reference date to first of January for the 'model'-calendar
2257      - failing of cal_CheckDate in cal_FullDate now actually results in a
2258        warning
2259    o small modifications in exf-package to increase flexibility:
2260      - change climtempfreeze from a constant to a runtime parameter that
2261        is specified in data.exf_clim (default = -1.9)
2262      - introduce runtime parameter windstressmax (default = 2.0) that is
2263        specified in data.exf
2264    o fix in pkg/thsice:
2265      - update Evap (Tsf changes) to be consistent with Latent heat flux
2266      - maintain snow precipitation unchanged (even if Tsf >=0).
2267     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2268    
2269    checkpoint52m_post
2270    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2271      this does not change any of the results, because myIter=0 in swfrac always
2272      lead to jwtype=2 (the default anyway), but the call makes little sense
2273      as a default
2274    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2275    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2276      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2277    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2278    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2279    o extending useSingleCpuIO option to work with new exch2 I/O format
2280      - old-style, missing-tile I/O is still accessible by defining CPP
2281        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2282    o monitor package can write to NetCDF files and/or STDOUT
2283    o fix re-definition bug in MNC_GRID_INIT_ALL()
2284    o doc/api_reference added
2285      - a framework for building an API Reference Manual using all
2286        the "protex" comments embedded in the code
2287      - see pkg/generic_advdiff, pkg/mnc for examples
2288    o MNC:
2289      - make myThid the last argument for all subroutines
2290      - new default for the grid files: NO halos
2291      - add useMNC and other run-time flags
2292      - separate per-file-group handling of the unlimited dimension
2293      - early initialization of MNC w/ flags read at the eeboot stage
2294        and lookup tables set in initialize_fixed
2295      - write all MNC output to a freshly-created directory
2296    o thermodynamics sea-ice (thsice) is now tested with testreport.
2297    o test exp. advect_cs: use the standard cs32 grid ; update output.
2298    o Added functionality to grdchk:
2299      pick global i,j,k position (or nearest wet) where to perform check.
2300    
2301    checkpoint52l_post
2302    o new land formulation:
2303      a) use ground enthalpy as prognostic variable to ensure exact
2304         energy conservation.
2305      b) account for water temperature and for latent heat of freezing
2306         in all processes (rain, run-off, ground storage)
2307      c) compute surface and ground temperature implicitly.
2308    o aim_v23 modification for new land model:
2309      a) Treat separately land / ocean / sea-ice surface fluxes
2310         to allow implicit computation of land & sea-ice surface temp.
2311      b) add snow precipitation.
2312    checkpoint52l_pre
2313    
2314    o fix problem (when 1 tile is empty) in min/max monitor.
2315    o fix bug in timeAve (u,vZetatave in common block)
2316    o no restoring terms under ice for pkg/seaice
2317    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2318    o bug fix for pkg/seaice pickups
2319    o change MNC call locations and add coordinate attributes
2320    o mask vorticity at the corner ; affects global_ocean.cs output
2321    o fix ini_curvilinear_grid ; test CS experiments with mpi
2322    o aim.5l_cs: modify sea-ice fraction input file ; update output
2323    o exf: Adding simple range check routine for exf fields after read
2324    
2325    checkpoint52k_post
2326    o removed top-level directory "diags"
2327      - we migrated these functions to pkg/timeave a long time ago
2328    o fixed bug introduced in pkg/monitor
2329    o accuracy ctrlprec = 32 insuffient for gradient checks using
2330      averaged fields (I/O via cost_averages)
2331      -> use ctrl.h in active_file*.F to control I/O precision.
2332    o paramter list of CALL ADTHE_MAIN_LOOP
2333    o added initial do_the_model_io to ecco
2334    o set all ...Freq to zero after cost_final
2335      taveFreq, dumpFreq, pChkptFreq
2336    o MAIN and ECCO differentiability restored
2337    
2338    checkpoint52j_post
2339    o fix nchklev in tamc.h for global_ocean...
2340    o Bringing flow and store directives up-to-date
2341    o Really weird thing!
2342      call do_the_model_io from the_main_loop with parameters
2343      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2344      TAF places a faulty re-call of initialise_varia
2345      after cost_final call which should not be there!
2346    checkpoint52j_pre
2347    
2348    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2349      error messages
2350    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2351    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2352      debug output
2353    o modfied mdsio_writefield.F to handle non-global files under exch2
2354    o update AIM Cubed-Sphere exp (aim.5l_cs):
2355      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2356    o update AIM Equatorial Channel exp:
2357      use standard aim_v23 pkg and change the SST fields to be more realistic.
2358    o globalFile now works with exch2
2359    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2360      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2361    o limit timeave output for hi-res integrations
2362    
2363    checkpoint52i_post
2364    o removed CPP_EEOPTIONS.h from verification/*/code
2365    o updated the tiling for global_ocean_pressure
2366    checkpoint52i_pre
2367    
2368    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2369      the old pkg/aim).
2370    
2371    checkpoint52h_pre
2372    o shortened offending lines in exch2_send_rx?.template
2373    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2374    o genmake2: add build & execute test for NetCDF code
2375    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2376      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2377    o added useSingleCPUIO flag to monitor.F and mon_out.F
2378    o added temporary hack for sea-ice dynamics on the cube:
2379      metric terms are ignored and it is assumed that
2380      there is no sea-ice on cube faces 1, 2, 4, and 5.
2381    
2382    checkpoint52f_post
2383    o added exch2 cube routines to pkg/exch2
2384    o modified hs94.cs-32x32x5 to use it
2385    o added new grid files to hs94.cs-32x32x5
2386    checkpoint52f_pre
2387    
2388    checkpoint52e_post
2389    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2390      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2391    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2392      to work with implicit vertical advection and AB ;
2393    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2394    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2395     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2396    checkpoint52e_pre
2397    
2398    o fix bug in impldiff when Nr=1 or Nr=2.
2399    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2400    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2401    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2402      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2403    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2404    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2405    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2406    
2407    checkpoint52d_post
2408    o re-tiled many expts to allow comparison in multi-processor mode
2409      - updated output accordingly
2410      - changed hs94.128x64x5 to use intial T from file rather than use the
2411        random number generator
2412    o add infrastructure in model routines for fizhi and gridalt packages
2413    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2414    o changes to permit hi-res, cubed-sphere, configuration
2415      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2416      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2417      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2418        of surface winds for the cube
2419      (A verification experiment, based on global_ocean.cs32x15, but with
2420       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2421       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2422       complete with example surface forcing files and matlab scripts to look
2423       at the output and compare it with that of global_ocean.cs32x15.)
2424    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2425       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2426       to conform to the common rule.
2427    o check-in the first version of the coupler + interfaces for multi-components
2428       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2429       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2430       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2431       - ocean and atmos. share the same horizontal grid (no interpolation).
2432       - exchanges between component and coupler is done in forward_step
2433    o new verification experiment, cpl_aim+ocn:
2434       coupled ocean - AIM atmosphere on cs32 grid.
2435    
2436    checkpoint52d_pre
2437    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2438    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2439    
2440    checkpoint52c_post
2441    o Fixing OPTIONS files for use of exf:
2442      - ALLOW_ECCO not needed
2443      - ECCO_CPPOPTIONS.h should not be included from
2444        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2445        as has been the case in the past
2446      - All cal/exf related options are currently set in
2447        single header file. Should remain so until we
2448        agree on a consistent new policy.
2449    o Removed all CPP options for cal package.
2450      cal has no more CPP options.
2451    o modified STOREs in GAD_ADVECTION
2452    o corrected key comp. for passkey
2453    
2454    checkpoint52b_post
2455    o new version: "thsice" of thermodynamic sea-ice pkg:
2456     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2457     - modify fluxes but do not change theta directly;
2458     - light cleaning of bulk_force pkg (still needed with thsice).
2459     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2460       + output_thsice.txt to test thsice & bulk_force pkgs.
2461    o put back grid & coriolis monitor output.
2462    checkpoint52b_pre
2463    
2464    o call "do_the_model_io" at the beginning (=> dump initial state)
2465    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2466    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2467      (need info on NUMBER_OF_PTRACERS)
2468    o missing PTRACERS headers in some routines
2469    o default tamc.h in pkg/autodiff supposed to crash
2470      to ensure proper customization
2471    
2472    checkpoint52a_post
2473    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2474      - moved surfaceTendencyTice from pkg/seaice to main code
2475      - subroutine FREEZE_SURFACE now limits only surface temperature
2476        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2477        => new output.txt for global_ocean.cs32x15 & global_with_exf
2478      - keep the old version of FREEZE for backward compatibility;
2479        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2480      - corresponding modifs for TAF directives
2481    o added surface flux output variables to TIMEAVE_STATVARS
2482    o time-averaged output for pkg/ptracers
2483    o fix problem with ECCO-related divided adjoint
2484      snapshot file was missing some ad-variables,
2485      but no warning issued by TAF
2486    
2487    checkpoint52a_pre
2488    o some bug fixes for #undef REAL4_IS_SLOW
2489    
2490    checkpoint52 = ecco_c52_e35
2491    o after testing adjoints of checkpoint51u_post
2492    
2493    checkpoint51u_post
2494    o this is the post-merge tag of the ecco-branch
2495      (needs another clean checkout and re-testing)
2496    o various natl_box_adjoint configs and results
2497      but no input fields
2498    o obcs adjoint not yet merged!
2499    o adding ECCO global 1x1 and 2x2 degree configs
2500    o updated/extended some store directives for seaice
2501    o pkg/ecco now containes ecco-specific part of cost function
2502    o top level routines the_main_loop, forward_step
2503      supersede those in model/src/
2504      previous input data.cost now in data.ecco
2505      (new namelist ecco_cost_nml)
2506    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2507    
2508    checkpoint51t_post
2509    o this is the pre-merge tag of the ecco-branch
2510    
2511    checkpoint51s_post
2512    o cleanup: removed various obsolete #define-s
2513    o pkg/grdchk
2514      - renamed 'ph-grd 3' to 'grad-res'
2515      - merged from ecco-branch
2516        (remaining bug fixes for obcs gradient checks)
2517      - additional high-precision output for testreport
2518        (grep for 'precision_grdchk_result')
2519    
2520    checkpoint51r_post
2521    o cleaned up or removed CPP_OPTIONS.h files
2522    o updated results for some of the tests to reflect the new
2523      optfiles (-ieee: -O0 instead of -O3)
2524    
2525    checkpoint51q_post
2526    o cd_code:
2527      - moved cd_scheme.F -> cd_code_scheme.F
2528      - separate read_checkpoint from cd_code_ini_vars.F
2529      - separated cd_code part from write_checkpoint
2530      - updated AD_SOURCE, generated .flow
2531      - added CD_CODE_VARS.h to the_main_loop
2532      - Moving cd_code specific store dir.s to pkg/cd_code
2533    o ctrl package totally restructured
2534      - pack/unpack now optional and decoupled from
2535        xx_/adxx_ I/O
2536      - ctrl_pack/unpack cleaned
2537        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2538      - confined inclusion of AD_CONFIG.h to where necessary.
2539    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2540    
2541    checkpoint51p_post
2542    o create initial cd_code package
2543      - WARNING: the initialization of fields within packages
2544        is broken because INI_FIELDS (where READ_CHECKPOINT is
2545        called) is called *before* PACKAGES_INIT_VARIABLES.
2546        This seems to be backwards since
2547        1) its important to initially zero the entire field including
2548           the "halo" region
2549        2) zeroing needs to be done *before* reading pickup info
2550           and the pickup call might or might not happen in any
2551           particular run
2552      - this needs an overhaul for R2
2553    o cleanup verification/*/code/GMREDI_OPTIONS.h
2554    o cleanup testreport
2555    
2556    checkpoint51o_post
2557    o bringing AD-related verif's up to date with genmake2
2558      - carbon/
2559      - global_ocean.90x40x15/
2560      - hs.94.1x64x5/
2561      - (front_relax/ )
2562    o (more) consistent directory structure for AD-related verif.'s
2563    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2564    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2565    o bug fix in find_alpha.F for MDJWF:
2566      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2567        change rho -> rho-rhoConst
2568      - replace call find_rho to find_rhonum
2569    o initialisation of rFlx extended to full array (required by TAF)
2570      and shifted to thermodynamics
2571    o removed PTRACERS.h in ptracers routine
2572    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2573    o Correcting initialisations for fVerU, fVerV.
2574    o helping TAF to recognize dependency on kUp for
2575      fVerU, fVerV
2576    o Replacing delZ by delR in pkg/ctrl/
2577    checkpoint51o_pre
2578    
2579    o undid all of cp51 pending some cleanups and discussion
2580    o added the [#include "AD_CONFIG.h"] statement to all files that need
2581       it for adjoint/tl #defines
2582     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2583     o removed tools/genmake since it no longer works
2584    
2585    checkpoint51n_post
2586    o modifications to make FREEZE flux visible to pkg/kpp
2587      - moved surfaceTendencyTice from pkg/seaice to main code
2588      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2589      - subroutine FREEZE now limits only surface temperature
2590        (this means new output.txt for global_ocean.90x40x15,
2591         global_ocean.cs32x15, and global_with_exf)
2592    o added surface flux output variables to TIMEAVE_STATVARS
2593    
2594    checkpoint51n_pre
2595    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2596    o added [#include "AD_CONFIG.h"] to all files that use the following
2597      defines:
2598      - ALLOW_ADJOINT_RUN
2599      - ALLOW_TANGENTLINEAR_RUN
2600      - ALLOW_ECCO_OPTIMIZATION
2601    
2602    checkpoint51m_post
2603    o incorporating changes to get TAMC/TAF working in genmake2
2604      - added new TAMC/TAF targets to the Makefile
2605      - various cleanups related to package handling
2606      - these changes should have no impact on the forward model
2607    
2608    checkpoint51l_post
2609    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2610     - faster algorithm for cal_addtime.F
2611     - higher precision arithmetic, where needed
2612     - pkg/exf *startdate variables changed from calendar date to
2613       model integration time
2614    
2615    checkpoint51l_pre
2616    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2617    o enable to apply restoring on S & T only in a latitude band.
2618    o update output (external_forcing_surf modif. change truncation errors)
2619       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2620    
2621    checkpoint51k_post
2622    o change default to: useNHMTerms=.FALSE.
2623     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2624       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2625     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2626        exp1, ideal_2D_oce
2627     - change data file of oceanic exp (leave the results unchanged for now)
2628       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2629    o set gravitySign automatically according to the vertical coordinate used
2630      (and change sign: back to "logical" value: +1 when R increases downward)
2631    o added an include barrier to the default CPP_OPTIONS.h and
2632      removed the #include "PACKAGES_CONFIG.h" from it
2633    o fix a bug in mom_fluxform (from chk51j_post)
2634    
2635    checkpoint51j_post
2636    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2637    o adjusted some flow directives (dynamics, thermodynamics)
2638    o added cubed-sphere case to test cost function
2639    o heckpoint_lev?_directives.h now include
2640      pkg-specific directives, whenever those are enabled.
2641    o Moving pkg-specific flow directives to corresponding pkg
2642      Moving pkg-specific differentiation list to corresponding pkg
2643      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2644      ---> conventions are
2645           - pkg_ad.flow
2646           - pkg_ad_diff.list
2647           - pkg_ad_check_lev?_dir.h
2648    
2649    checkpoint51i_post
2650    o merge of the branch-genmake2
2651      - knowingly breaks the older genmake
2652      - automatic generation of all ALLOW_${PKG_NAME} defines
2653      - new testreport supersedes older testscript
2654    o large number of package inclusion and header cleanups
2655    checkpoint51i_pre
2656    
2657    o new output for adjoin of global ocean vector invariant
2658    o fix for checkpoint of thermodynamic seaice and bulk_force
2659    o Steph gchem various cleanups
2660    
2661    checkpoint 51h_pre
2662    o fixed some single quotes
2663    o modify gchem pkg to be more versatile
2664    o modifications to clean up dic pkg
2665    o add pkg/cfc
2666    
2667    checkpoint51g_post
2668    o provide links for ARPACK and ADM*TLM
2669    o start removing verification/vero/
2670    o update AD-related stuff
2671      (in particular some IF-statements in model/src/ routines)
2672    o adding to verification/global_ocean.90x40x15/ adjoint of
2673      vector invariant setup
2674    
2675    checkpoint51f_post
2676    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2677    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2678      of tracer Green's fucntions for ocean inversion project.
2679    
2680    checkpoint51f_pre
2681    o Added on-the-fly spatial interpolation capability
2682        "USE_EXF_INTERPOLATION" to pkg/exf.
2683      - This is a temporary Cartesian-grid hack until
2684        the super-duper ESMF coupler becomes available.
2685      - See verification/global_with_exf/README for usage example.
2686      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2687        flags and modified pkg/seaice accordingly.
2688    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2689        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2690        non-local transport term.
2691    
2692    checkpoint51e_post
2693    o pkg/mom_vecinv:
2694      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2695      - add time-ave diagnostic of vorticity advection.
2696    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2697    o atmospheric geopotential: - include water vapor effect;
2698                                - use p^kappa in p* scaling.
2699    o land pkg: read initial state from files.
2700    o AIM : add stratospheric drag in the upper level
2701    
2702    checkpoint51d_post
2703    o change function ILNBLNK (=> last non-blank char.) to return zero
2704      (instead of the string length) when the string. char is empty
2705    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2706    o modif's to restore TAMC compatibility
2707      - avoid "_d" constructs in PARAMETER declarations
2708      - avoid interrupting lines by comment lines
2709    o Use cluster local disks for purely local I/O
2710      vs. globally visible disks needed for ctrl stuff
2711      (merged from ecco-branch)
2712      - new active_file_loc... and mdsio_..._loc routines
2713      - affected packages: autodiff, ctrl, grdchk, mdsio
2714    
2715    checkpoint51c_post
2716    o introducing integer flag debugLevel
2717      - debLevZero: suppress all output
2718      - debLevA: standard
2719      - debLevB: equivalent to current debugMode=.TRUE.
2720    o introducing pathname variable mdsioLocalDir for mdsio
2721      that can be specified at runtime
2722      (relevant for cluster I/O to local disk)
2723    `
2724    >>>checkpoint51b_post
2725    adjoint of ptracers
2726    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2727    o extended state in checkpoint_lev?, etc.
2728    o alternative ctrl/cost with tr1 or ptracer
2729    o new comlev1_bibj_ptracers
2730    o new ptracers.flow
2731    o made ptracers_forcing same as external_forcing_s
2732    o added verification for adjoint with ptracers
2733      - adm. grdchk fail so far
2734      - tlm. grdchk OK
2735      - checked tapelev/comlev recomputations: OK
2736    <<<checkpoint51b_pre
2737    
2738    checkpoint51a_post
2739    o added code for biogeochemistry package
2740      - new pkgs: dic, gchem
2741      - new subroutine in ptracers
2742    o modify code for biogeo packages
2743      - in model/src and pkg/ptracers
2744    
2745    checkpoint51
2746    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2747      - autodiff, ctrl, exf, grdchk, seaice
2748      kept separate packages
2749      - cost, ecco, obcs
2750    o updating verification/internal_wave, verification/lab_sea
2751      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2752    
2753    checkpoint50i_post
2754    o Preparing next differentiable checkpoint and sync
2755      of MAIN vs. ecco-branch
2756      - 1st step: this one is differentiable
2757      - 2nd step: next(! not this) checkpoint will have updated packages
2758                  from ecco-branch)
2759    
2760    checkpoint50h_post
2761    o new package "land": provide surface BC for AIM.
2762    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2763    o AIM: use true log-P extrapolation for near surface temp (= as in
2764        F.Molteni paper) ; update aim.5l_cs output.
2765    o New variable in PARM03 for more flexible pickups
2766    o somewhat cleaned package initialisation sequence for
2767      ctrl/ cost/ ecco/ in packages_... routines
2768    
2769    checkpoint50g_post
2770    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2771      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2772      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2773        made the default because of faster convergence than ADI
2774    
2775    checkpoint50f_post
2776    o exf totally restructured
2777      - replaced all exf_set_ routines by one generic exf_set_gen.F
2778        and made sure it's still differentiable
2779      - split exf_getffields.F into new exf_bulkformulae.F
2780      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2781      - updated adjoint/makefile and relevant verif. accordingly
2782    
2783    checkpoint50f_pre
2784     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2785          + change Evap over land. (update aim.5l_cs output)
2786     o added missing .cvsignores and made uniform across expts
2787     o changed configuration of tidal_basin_2d expt
2788     o added pkg/debug functions for tracing code in fatal crashes
2789     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2790     o new fn in pkg/monitor to stop model if solution grows too big
2791     o removed lots of single quotes from comments
2792    
2793    checkpoint50e_post
2794    o make KPP work with PTRACERS
2795     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2796       nearly a copy of kpp_transport_s
2797     - there is no analogue to SurfaceTendencyS, so I have to use
2798       gPtr(of the surface layer) instead
2799    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2800    checkpoint50e_pre
2801    
2802    checkpoint50d_post
2803    o change kpp output from multiple-record state files to single-record state
2804      files analogous to write_state.F
2805    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2806      analogous to the cg2d-related output.
2807    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2808      so that writing to internal file fn (with length 512) fails.
2809    checkpoint50d_pre
2810    
2811    checkpoint50c_post
2812    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2813    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2814    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2815    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2816    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2817    
2818    checkpoint50c_pre
2819    Merging from release1_p13:
2820    o bug fix for pkg/seaice dynamic solver
2821    o Added SEAICE_initialHEFF to pkg/seaice
2822    
2823    checkpoint50b_post
2824    o store u*,v* in gU,V instead of in guNm1,gvNm1
2825    o in order to put the momForcing out of the Adams-Bashforth:
2826      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2827      to timestep.F
2828    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2829    o re-generate output for highly sensitive test-exp:
2830       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2831    
2832    checkpoint50b_pre
2833    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2834    o corrected CPP option mismatch in exf_Bulk... functions for case
2835      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2836    
2837    checkpoint50a_post
2838    o Bug fix for merging between c50 and KPP.
2839      ikey was passed from thermodynamics to kpp_calc via
2840      common block rather than being recomputed in kpp_calc,
2841      in contradiction with new key itdkey.
2842      New key ikppkey created, and tamc.h headers updated.
2843    
2844    checkpoint50
2845    - 2nd step of merge with ecco-branch:
2846      merge changes in ecco-branch back into main trunk
2847    - bug fix in find_alpha
2848    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2849    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2850    - merged some sliced AD support routines
2851    
2852    checkpoint49
2853    merged from ecco-branch:
2854    o exf:
2855      - Enable initialisation of forcing fields to constant
2856        (runtime) values.
2857      - in exf_getffields.F
2858        Reduce i-/j-loop to interior domain, discarding overlaps.
2859        That also fixes wrong TAF-key computations for key_1, key_2
2860        with bulf formulae.
2861      - exf_init.F modify #ifdef for exf_init_evap
2862      - exf_getffieldrec.F, ctrl_getrec.F
2863        The following INT-usages are not safe:
2864          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2865          fldcount = int(fldsecs/fldperiod) + 1
2866        and were modified.
2867    o autodiff: checkpoint_lev...
2868      - updated storing for bulk formulae (some arrays were missing)
2869      - added state for seaice package
2870      - synchronized with main branch
2871    o DIVA:
2872      Modif.s in
2873      - the_main_loop.F
2874      - the_model_main.F
2875      and added cost_final_restore.F cost_final_store.F
2876      o With these changes, it is possible to fully separate
2877        the first forward run to compute the cost function (mdthe_main_loop)
2878        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2879        into separate model executions.
2880        This enables better tuning of DIVA to given queue sizes.
2881      o Loss of cost function value in consecutive DIVA runs is
2882        fixed by storing to 'costfinal' file.
2883      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2884        beginning/end of adjoint integration is accounted for.
2885      The current changes apply to TAF-1.4.26.
2886      TAF has one remaining bug, requiring one manual change
2887      (see MITgcm manual).
2888    o cal: synchronized between MAIN and ecco-branch
2889    
2890    checkpoint48i_post
2891    o Changes to restore differentiability of code w.r.t. previous tag
2892      (mostly adding new routines to make list and replacing
2893      pressure by totPhiHyd).
2894    o Updated and merged grdchk package
2895      - has both ADM and TLM checks
2896      - works for single- and multi-proc.
2897      - output cleaned
2898      - worked successfully for parallel DIVA
2899    o genmake:
2900      - Adding -platform=SP4
2901      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2902    o Modif. for DIVA:
2903      ctrl_unpack should not be called in intermediate DIVA interval.
2904      (similar thing would apply for active files such as
2905      tbar, sbar, psbar, which should not be reinitialised;
2906      only relevant for ecco-branch)
2907    
2908    checkpoint48h_post
2909    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2910    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2911    o Added SEAICE_initialHEFF to pkg/seaice
2912    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2913    
2914    checkpoint48g_post
2915    --- EOS:
2916    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2917      store total Potential in totPhyHyd for diagnostics & EOS.
2918    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2919    --- Pressure/geopotential gradient:
2920    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2921    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2922      ( changes results of global_ocean_pressure )
2923    o NLFS + z-coord.: add eta*Rho' contribution.
2924    o accurate phiHyd when using interface-W at the middle between 2 centers
2925     ( changes results of ideal_2D_oce )
2926    o includes r* 2nd term in potential gradient.
2927    
2928    checkpoint48f_post
2929    Merging from release1_p12:
2930    o Modifications for using pkg/exf with pkg/seaice
2931      - improved description of the various forcing configurations
2932      - added basic radiation bulk formulae to pkg/exf
2933      - units/sign fix for evap computation in exf_getffields.F
2934      - updated verification/global_with_exf/results/output.txt
2935    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2936      (SBO) core products, including oceanic mass, center-of-mass,
2937      angular, and bottom pressure (see pkg/sbo/README.sbo).
2938    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2939      to avoid negative values in shallow regions.
2940      - updated verification/natl_box/results/output.txt
2941      - updated verification/lab_sea/results/output.txt
2942    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2943    o Added useSingleCpuIO option (see PARAMS.h).
2944    o Updated useSingleCpuIO option in mdsio_writefield.F to
2945      work with multi-field files, e.g., for single-file pickup.
2946    o pkg/seaice:
2947      - bug fix in growth.F: QNET for no shortwave case
2948      - added HeffFile for specifying initial sea-ice thickness
2949      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2950    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2951      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2952    o pkg/seaice:
2953      - adjoint-friendly modifications
2954      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2955    
2956    checkpoint48e_post
2957    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2958    o dynamics: change definition of computational domain & adapt mom_fluxform
2959      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2960    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2961        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2962        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2963        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2964        inverted_barometer solid-body.cs-32x32x1
2965      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2966    
2967    checkpoint48d_post
2968    o in preparation for r*:
2969     a) use pre-computed gradient of hydrostatic potential:
2970        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2971     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2972        => affects results of glob_oce_pressure (different truncation error)  
2973      update output.txt of ideal_2D_oce & global_ocean_pressure
2974    
2975    checkpoint48d_pre
2976    o in preparation for r*:
2977      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2978      pass the 2 comp. of the grad. as arguments to momentum S/R.
2979      but for the moment, only used if it does not change the results.
2980    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2981    
2982    checkpoint48c_post
2983    Modifications in treatment of initial flux forcing controls
2984    to avoid extra storing of flux fields.
2985    
2986    checkpoint48c_pre
2987    o Added tidal_basin_2d experiment (currently 1D!)
2988    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2989    
2990    checkpoint48b_post
2991    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2992     (modification to pressure gradient not yet implemented)
2993    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2994      (for U & V) that are used for vertical advection of momentum.
2995    
2996    checkpoint48a_post
2997    o In preparation for r*, use temp. array to compute vertical transport
2998       in flux-form momentum pkg. => change results of few test-exp.
2999      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
3000                        lab_sea, natl_box & plume_on_slope
3001    
3002    checkpoint48
3003    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
3004    
3005    checkpoint47j_post
3006    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
3007    o moved adexch from forward_step to addummy_in_stepping
3008    o added exch in ctrl_map_...
3009    o aveFreq.=0. at end of cost_final to avoid overwrite in
3010      reverse checkpointing loop
3011    o Yet more changes in gmredi:
3012      * adgmredi_calc_tensor
3013        avoiding all recomputation of gmredi_slope_limit
3014      * adgmredi_x/y/rtransport
3015        added flag for excessive storing to avoid recomp. of
3016        u/v/rtans, dTdx/y/z
3017        -> this is not really necessary and very memory-consuming
3018      * adgmredi_slope_psi:
3019        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
3020      * gmredi_slope_limit
3021        re-activated full calculation of taperfct for case 'ac02'
3022    o updating verification/ adjoints of carbon, global_ocean.90x40x15
3023    
3024    checkpoint47i_post
3025    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
3026    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
3027      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
3028    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
3029    o gmredi: fix few bugs.
3030    
3031    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
3032    This will be a good checkpoint to plug into the ecco-branch.
3033    o few modif.'s to get latest version adjointed
3034      (mainly kick out code in ini_linear_phisurf)
3035    o modif's to run adjoint with exactConserv
3036    o case GM_BOLUS_ADVEC should be cleaned
3037      S/R gmredi_slope_psi should be cleaned
3038    o verification/carbon now has exactConserv=.TRUE.
3039    
3040    checkpoint47g_post
3041    o time-average AIM output: becomes independent from statvars time-average
3042      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
3043    o After TAF bug fix:
3044      Tested adjoint of gmredi package.
3045      Tests were done with checkpoint47 rather than with latest
3046      checkpoint47f_post since the latter is broken for the adjoint
3047      verification/carbon/ contains both ADM and TLM gradient checks.
3048    Here they are, before they get changed/lost/stolen.
3049    Mostly modif.'s to fix numerical sensitivities.
3050    Gradient checks OK for
3051    - GM_taper_scheme:
3052      * clipping
3053      * ac02
3054      * linear
3055      * glw91
3056      * dm95
3057      * ldd97
3058    - GMREDI_OPTIONS:
3059      * GM_VISBECK_VARIABLE_K
3060      * GM_NON_UNITY_DIAGONAL
3061      * GM_EXTRA_DIAGONAL
3062      * GM_BOLUS_ADVEC
3063    in conjunction with data.gmredi parameters to be checked in
3064    in a few minutes under verification/carbon/code/
3065    
3066    checkpoint47f_post
3067    Merging from release1_p10:
3068    o modifications for using pkg/exf with pkg/seaice
3069      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
3070        and SEAICE_EXTERNAL_FLUXES
3071      - pkg/exf CPP options EXF_READ_EVAP and
3072        EXF_NO_BULK_COMPUTATIONS
3073      - usage examples are Experiments 8 and 9 in
3074        verification/lab_sea/README
3075      - verification/lab_sea default experiment now uses
3076        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
3077    
3078    checkpoint47e_post
3079    o created a tag prior to creating a branch
3080    
3081    checkpoint47d_post
3082    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
3083      at the bottom boundary had an erroneous half slip boundary condition
3084    o added bottom drag and no slip boundary condition capabilities to
3085      oceanic pressure coordinates code
3086    o added new verification experiment global_ocean_pressure, this experiment is
3087      also described in the tutorial section of the manual
3088    checkpoint47d_pre
3089    
3090    checkpoint47c_post
3091    o Added a verification experiment for a global cubed-sphere ocean run
3092      -  verification/global_ocean.cubed32x32x30
3093      -  uses pkg/therm_seaice and pkg/bulk_forcing
3094    
3095    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
3096    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
3097      when using P-coordinate; only implemented for atmospheric config.
3098    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
3099      NOTES: requires option NONLIN_FRSURF to be "#define".
3100    o update advect_xz/results/output.txt (left from checkpoint44g_post)
3101    
3102    checkpoint47b_post
3103    Merging from release1_p9:
3104    o pkg/seaice
3105      - removed GOTO's and added taf directives
3106      - double precision constants to reduce the g77 (Linux)
3107        to F77 (SGI) differences reported in release1_p8
3108    o tools/genmake
3109      - added SGI options
3110    o verification/testscript
3111      - updated to that of checkpoint47a_post
3112    o verification/global_ocean.90x40x15/input/eedata
3113      - modified for SGI f77 compatibility
3114    o verification/lab_sea
3115      - added description of sea-ice model
3116      - added missing matlab routines
3117      - added test of thermodynamics parallelization
3118    
3119    checkpoint47a_post
3120    o new pkg: aim_v23
3121     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
3122       for now, keep the same surface forcing as before.
3123     - Part-Cell implemented into AIM; check that Heat & Water are conserved
3124     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
3125     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
3126    o add diagnostic of surface correction term in monitor output
3127    
3128    o bulk_force and therm_seaice
3129    - Two packages:  bulk_force (Bulk forcing)
3130      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
3131    - Earlier integration from Stephaine Dutkiewicz
3132      and Patrick Heimbach.
3133    - Two ifdef statements for compile time,
3134       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
3135    
3136    checkpoint47
3137    differentiable version of checkpoint46n_post
3138    o bug fix in quasihydrostaticterms
3139    o * "clean" adjoint code (in terms of extensive recomputations)
3140        can now be obtained for all GMREDI options (i.e. for
3141        - GM_VISBECK_VARIABLE_K
3142        - GM_NON_UNITY_DIAGONAL
3143        - GM_EXTRA_DIAGONAL
3144        - GM_BOLUS_ADVEC )
3145      * However, wrong gradient check problem remains unsolved.
3146      * New CPP options have been introduced for different
3147        tapering schemes
3148    o external_fields_load now part of differentiation list
3149    o pressure needs multiple storing;
3150      would be nice to have store_pressure at beginning or
3151      end of forward_step, e.g. by having phiHyd global (5-dim.)
3152      (NB: pressure is needed for certain cases in find_rho,
3153      which is also invoked through convective_adjustment).
3154    o recomputations in find_rho for cases
3155     'JMD95'/'UNESCO' or 'MDJWF' are OK.
3156    o #define ATMOSPHERIC_LOADING should be differentiable
3157    o ini_forcing shifted to begining of initialise_varia
3158    o Incorporating QNVS line search routines into MITgcm
3159      (this is separate code, and therefore not under pkg)
3160      lsopt/, optim/
3161    o Updated verification/carbon/
3162      - #define GM_VISBECK_VARIABLE_K
3163      - GM_taper_scheme    = 'ldd97'    
3164    
3165    checkpoint46n_post
3166    Merging from release1_p8:
3167    o verification/natl_box:
3168      updating new external_fields_load routine
3169    o New package: pkg/seaice
3170      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
3171      The sea-ice code is based on Hibler (1979-1980).
3172      Two sea-ice dynamic solvers, ADI and LSR, are included.
3173      In addition to computing prognostic sea-ice variables and diagnosing
3174      the forcing/external data fields that drive the ocean model,
3175      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
3176      The implied surface heat flux is then stored in variable
3177      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
3178      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
3179      non-local transport term.  Because this call precedes model
3180      thermodynamics, temperature under sea-ice may not be "exactly" at
3181      the freezing point by the time theta is dumped or time-averaged.
3182      N.B.: fairly large differences in accuracy occur across
3183            different platforms/compilers; comparison between
3184            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
3185            generated output gives:
3186       T           S           U           V
3187      C D M    c        m  s        m  s        m  s        m  s
3188      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
3189      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
3190      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
3191    
3192      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
3193    o GAD:
3194      - generated new common blocks to account for call of
3195        same gad routines with differing traceridentities
3196        (needed to modify tracerIdentity indices in GAD.h)
3197      - generated separate common blocks for case useCubedSphereExchange
3198        (Department of Futurology)
3199      - parameter lists to gmredi_?transport: added tracerIdentity
3200      - added new key indices to tamc.h
3201    o external_fields_load:
3202      - added this routine to TAF list
3203      - needed to make some common blocks global and additional storing
3204        along the same lines as exf package (checkpoint_lev?_directives.h)
3205    o exf:
3206      updated external forcing package
3207      - bug fixes carried over from ecco-branch
3208        (missing OBCS_OPTIONS.h in two routines)
3209      - enable easy to use "no forcing".
3210      - added exf I/O for atmospheric loading
3211      - added exf I/O for runoff data
3212      - transfered scaling between exf <-> MITgcm to exf namelist
3213    o Adding new verification experiment global_with_exf.
3214      This verification experiment is almost identical to the
3215      global_ocean.90x40x15 experiment, except that it uses
3216      the exf (and cal) package instead of the
3217      external_fields_load routine (cf README file).
3218    
3219    checkpoint46m_post
3220    o modified testscript to return -- when there are no lines of "%MON" output
3221    o added new flag "quasiHydrostatic" for QH mode
3222      and new routine quasihydrostaticterms()
3223    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
3224      New routine: mom_u_coriolis_nh()
3225    o fixed sign of non-hydrostatic metric terms in u and v equations.
3226      Depend on correct sign of gravitySign.
3227    o added work.pc* to .cvsignore in aim directories using ifc
3228    o introduced flag for controllin non-hydrostatic metric terms
3229    o removed gravitySign from PARM04
3230    o switched to g77/ifc from pgf77 in aim experiments
3231    
3232    checkpoint46l_post
3233    o made convective adjustment work with pressure coordinates:
3234     - changed the direction of k-loop in convective_adjustment.F for the
3235       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
3236     - adjusted the reference pressure k-index in convective_adjustment.F
3237     - adjusted the convection condition in convect.F (in analogy to
3238       calc_ivdc.F)
3239     - convective_adjustment no longer computes anything on the halos
3240     - removed the warnings about negative salinity from find_rho.F and
3241       find_alpha.F; instead the new routine look_for_neg_salinity, called
3242       at the beginning of find_rho, find_alpha, and find_beta, does a
3243       check of the entire slice, if CPP-option
3244       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
3245    checkpoint46l_pre
3246    
3247    checkpoint46k_post
3248    o fixed the verification/global_ocean.90x40x15 experiment:
3249     - new bathymetry (the world according to A., JMC, and M.)
3250     - new initial fields and forcing fields (*.bin files)
3251     - new POLY3.COEFFS (for the next release one should switch to a full
3252       equation of state: JMD95P or MDJWF)
3253     - fixed several errors and redundancies in the data file
3254     - experiment uses looped cells
3255     - added matlab directory with diagnostic scripts for plotting of output
3256    
3257    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
3258     - read AIM physics parameters from a file (data.aimphys)
3259     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
3260    
3261    checkpoint46j_post
3262    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
3263    o move wVel computation at the end of the time step, in S/R integr_continuity
3264    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
3265    o update timeave pkg for wVel diagnostic.
3266    checkpoint46j_pre
3267    
3268    checkpoint46i_post
3269    o Clean up AIM package (and keep the results unchanged):
3270      include CPP_OPTION and use IMPLICT NONE in all routines ;
3271      declare all the variables _RL ; use _d 0 for all numerical constants.
3272      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
3273    
3274    checkpoint46h_post
3275    o cleaned up the use of rhoNil and rhoConst.
3276      - rhoNil should only appear in the LINEAR equation of state, everywhere
3277        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
3278        and the dynamical equations are all divided by rhoConst
3279    o introduced new parameter rhoConstFresh, a reference density of fresh
3280      water, to remove the fresh water flux's dependence on rhoNil. The default
3281      value is 999.8 kg/m^3
3282    o cleanup up external_forcing.F and external_forcing_surf.F
3283      - can now be used by both OCEANIC and OCEANICP
3284    checkpoint46h_pre
3285    
3286     Added code to convert surface volume flux (fresh water) into
3287     a mass flux when using P coordinates in the ocean (OCEANICP).
3288     Note: It assumes you have set rho0=rhoConst=density of fresh water.
3289    
3290    checkpoint46g_post
3291    o Include a new diagnostic variable phiHydLow for the ocean model
3292      - in z-coordinates, it is the bottom pressure anomaly
3293      - in p-coordinates, it is the sea surface elevation
3294      - in both cases, these variable have global drift, reflecting the mass
3295        drift in z-coordinates and the volume drift in p-coordinates
3296      - included time averaging for phiHydLow, be aware of the drift!
3297    o depth-dependent computation of Bo_surf for pressure coordinates
3298      in the ocean (buoyancyRelation='OCEANICP')
3299      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
3300        Theta, Salinity, and Pressure in the parameter list. This routine is
3301        presently contained in find_rho.F. This routine does not give the
3302        correct density for 'POLY3', which would be a z-dependent reference
3303        density.
3304    o cleaned up find_rho
3305      - removed obsolete 'eqn' from the parameter list.
3306    o added two new verification experiments: gop and goz
3307      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
3308    checkpoint46g_pre
3309    
3310    checkpoint46f_post
3311    o Enable tangent linear (forward mode) gradient checks:
3312      - extended active file handling to g_... files
3313      - added TANGENT_SIMULATION to theSimulationMode
3314      - extended grdchk package accordingly
3315    o added tangent linear setup in verification/carbon/code_ftl
3316    o added adjoint setup in verification/front_relax/code_ad
3317    
3318    checkpoint46e_post
3319    o Added new equation of state -> MDJWF
3320      - EOS of McDougall et al., 2002, JAOT, submitted
3321      - caveat: the equation of state is only valid for a smaller (more
3322        realistic?) range of values than JMD95P/Z and UNESCO
3323      - added masks to the calculation of pressure in store_pressure
3324      - added more check values for density in check_eos (ini_eos.F), some of
3325        the old check values are out of the range of the MDJWF-eos, so don't
3326        expect perfect matches for those
3327    checkpoint46e_pre
3328    
3329    checkpoint46d_post
3330    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
3331      'OCEANICP', also initialised field pressure correctly in ini_eos in the
3332      case of pressure coordinates. eosType='JMD95Z' in
3333      combination with buoyancyRelation='OCEANICP' now causes an error.
3334    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3335      in find_alpha/beta.
3336    checkpoint46d_pre
3337    
3338    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3339      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
3340    
3341    checkpoint46c_post
3342    o Changes necessary for ocean in p-coordinates
3343     -  Added new buoyancy relation = 'OCEANICP'
3344     -  Added new parameters = gravitySign (this used to be contained inside
3345        the factor dRdZ which I added when we first switched to R coordinates).
3346     X GM/Redi is not compatible (yet)
3347     X bottom drag and no-slip need to be debugged.
3348    checkpoint46c_pre
3349    
3350    checkpoint46b_post
3351    o Added new equation of state -> JMD95Z and JMD95P
3352      - EOS of Jackett and McDougall, 1995, JAOT
3353      - moved all EOS parameters into EOS.h
3354      - new routines ini_eos.F, store_pressure.F
3355    o Added UNESCO EOS, but not recommended because it requires
3356      in-situ temperature (see JMD95)
3357    o Modified formatting for knudsen2.f in utils/knudsen2 and added
3358      unesco.f to be used with POLY3
3359    checkpoint46b_pre
3360    
3361    checkpoint46a_post
3362    o Added (atmospheric) pressure loading
3363      - new field in FFIELDS.h, etc...
3364      - new cpp flag ATMOSPHERIC_LOADING
3365    o Changed hFacC to _hFacC in calc_phi_hyd.F
3366    o Added SHORTWAVE_HEATING to some files for consistency
3367    checkpoint46a_pre
3368    
3369    checkpoint46
3370    further merges from release1_p5
3371    o new ctrl package
3372      - adopted from ECCO environment to enable optimization
3373      - added Eliassen Palm fluxes to controls
3374    o added Eliassen Palm flux controls to gradient check package
3375    o cost package
3376      - Compatible with new ctrl package
3377      - added Eliassen Palm cost hooks
3378      - modif's of existing cost functions
3379    o Adjoint-related bug fixes in kpp:
3380      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
3381      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
3382    o autodiff package
3383      - flow directives:
3384        + new for S/R do_the_model_io
3385        + enhanced for S/R checkpoint
3386        + new gmredi.flow
3387      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
3388        disable adcommon.h/g_common.h by default.
3389      - fixed problem for adjoint of global_max
3390    o modified verification/carbon/
3391    o New setup for adjoint of global_ocean
3392    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
3393    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
3394    o incorporated hooks for sponge layer code (external_forcing.F)
3395    
3396    checkpoint45d_post
3397    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
3398    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
3399      (affects plume_on_slope "cg2d" output)
3400    o add new parameter deltaTfreesurf for free-surface time stepping
3401    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
3402    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
3403    o change phiMin in exp1 (to agree with documentation)
3404    o add new flags:
3405     - T,S forcing inside/outside Adams-Bashforth
3406     - turn off temp,salt advection and/or forcing
3407     - for each tracer, define internal flag for multiDimAdvection & A-B
3408    o monitor: change definition of KE to check conservation of Energy
3409    
3410    checkpoint45c_post
3411    o Removed f90 comments ("!")
3412    o Modified initialisations to enable exf package for MITgcm
3413      (without invoking ECCO_PACKAGE).
3414    o modifications to gradient check package (Martin Losch)
3415      - enable centered differences
3416      - modified format of standard output
3417    
3418    checkpoint45b_post
3419    o cleaned exchange calls in cg2d
3420    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
3421    o included CPP option SINGLE_LAYER_MODE in thermodynamics
3422      to configure barotropic setup (Martin Losch)
3423    o moved some initialisations within bi,bj loop in dynamics
3424      (TAF flow dependency)
3425    o in initialise_varia, moved call packages_init_variables
3426      before convective_adjustment_init
3427      (corresponding adjustment of TAF tape initialisation).
3428    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
3429    
3430    checkpoint45a_post
3431    o compute Rho over the whole domain (extend iMin,jMin indices)
3432    o specific exchange for X-slice domain (case Ny=1)
3433    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
3434    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
3435    
3436    checkpoint44h_post = checkpoint45
3437    o Fix to restore differentiability:
3438      place at which packages_init_variables is called in
3439      initialise_varia is crucial for reverse control flow.
3440    o modifications in GMRedi to enable stable adjoint
3441      (corresponding modif's in thermodynamics, dynamics)
3442    o added missing hook for sponge layer code in external_forcing
3443    o modified test cost functions
3444    o storing in gad_advection (plus removal of write(0,*)!
3445    o missing headers TR1.h added in convective_adjustment routines
3446    o errorMessageUnit set non-equal zero in eeboot
3447      (conflict on some platforms, e.g. IBM SP3)
3448    o modified carbon verif.
3449    
3450    checkpoint44h_pre
3451    o vertical grid option: allow to put the Interface at the middle between
3452      2 cell-centers ; replace delZ in pkg/kpp by drF.
3453    o GM Advective form: Tracers are advected using the residual transport (=
3454      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
3455    
3456    checkpoint44g_post
3457    o fix surface correction term in multiDimAdvection (affects plume_on_slope
3458      results) ; ifdef missing in thermodynamics.F
3459    
3460    checkpoint44f_pre,checkpoint44f_post
3461    o added PTRACERS package
3462      This allows an arbitrary number of passive tracers to be integrated
3463      forward simultaneously with the dynamicaly model.
3464      + Implemented so far:
3465        - basic forward algorithm (time-stepping, advection, diffusion, convection)
3466        - I/O and checkpointing
3467        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
3468      + Not implemented so far:
3469        - KPP
3470        - OBCS
3471      + No specific example supplied (yet) but global_ocean.90x40x15 has the
3472        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
3473        line in data.pkg.
3474      + This package is disabled by default since it increases storage.
3475    
3476    
3477    o testscript: added -cleanup option
3478    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
3479                 b) enable to filter 2D fields.
3480    
3481    checkpoint44e_pre,post
3482    o re-wrote convective adjustment to use pre-calculated weights
3483      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
3484      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
3485      Original calls to convect() still in place.
3486    
3487    chkpt44d_pre,post
3488    o added missing EXCLUDE_MONITOR flags
3489    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
3490      (incompatible typ in MIN/MAX expressions caused problems
3491      on IBM SP3)
3492    o in genmake added variable MAKEDEPEND
3493      plus resetting for case SunOS
3494    o added timer_stats.c routine for IBM SP3
3495    o removed variables in dynamics
3496    !!! I forgot to create tag chkpt44d_pre !!!
3497    !!! But chkpt44d_pre = chkpt44c_post    !!!
3498    
3499    o real fresh water flux implemented with non-linear free-surface.
3500    
3501    chkpt44c_pre,post
3502    o few fix (mask in shap_s2, EmPmR in external_field_load,
3503      USE_NATURAL_BCS in solve_for_P);
3504    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
3505    
3506    checkpoint44b_pre/_post
3507    o merge of relevant stuff from the ecco-branch:
3508      - genmake: removed $S64 overwrite for case SunOS
3509      - pkg/exf: update and corrections for field swapping and obcs
3510      - pkg/ecco: parameter lists for the_model_main, the_main_loop
3511                  harmonized between ECCO and MITgcm
3512      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
3513                      updated checkpointing_lev... lists for obcs
3514      - model/src: minor changes in forward_step, plot_field
3515                   added directive for divided adjoint in the_main_loop
3516      - pkg/mdsio: added mdsio_gl_slice
3517    
3518    o check parameters & config (chkpt44a_pre,post)
3519    o OBC and NonLin_FrSurf.
3520    
3521    checkpoint44
3522    o fix bug in mom_vi_del2uv
3523    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
3524    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
3525    o update AIM experiments (NCEP input files)
3526    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
3527    o added some stuff for AD
3528    
3529    checkpoint43
3530    o added two new advection tests
3531    o added global 4x4 degree ocean test
3532    o added test of H&S94 with free surface on cube
3533    o some final mods for gradient check, adjoint,...
3534    
3535    checkpoint42
3536      Fixed AD-related problems:
3537    o Store directives up-to-date with re-arranged Adams-Bashforth
3538      (mainly thermodynamics.F)
3539    o New store directives for multi-dim. advection schemes
3540      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
3541      * new common block and key passkey
3542      (mainly gad_advection.F)
3543    o Modified store directives for split of dynamics/thermodynamics
3544      for the case ALLOW_KPP
3545    o Cleaned argument list for timestep_tracer.F
3546    
3547    checkpoint41
3548    o re-formatted/added comments in prologues of key subroutines
3549      to work with protex
3550    
3551    checkpoint40
3552    o moved calc_gs, calc_gt and calc_tr1 back to model/src
3553    o added FLT (floats) package from Arne along with demo. experiment
3554    o re-arranged Adams-Bashforth scheme for tracers to allow easier
3555      implementation of forward-in-time forcing terms
3556    o more mods for non-linear free-surface including new variable
3557    o modified multi-dim method to work on cube
3558    o bug fix in KPP (from DM)
3559    
3560    checkpoint40pre9
3561    o added DST advection schemes
3562    o fix MPI bug on SGI's
3563    o modifications for non-linear free-surface
3564    o fixed conditionals for fixed flow/passive tracer only mode
3565    o added tension/strain form of stress tensor
3566    o changes to commenting of arguments for TAF/TAMC
3567    o added/updated many matlab scripts
3568    o added multi-dimensional advection method for tracers
3569      
3570    checkpoint40pre8
3571    o new package rw/
3572      Added method for dumping intermediate local arrays:
3573      mdsio_writetile - same as mdsio_writefield except works from inside
3574                        bi,bj loop
3575      mdsio_writelocal - same as mdsio_writetile except works for local
3576                         arrays
3577      write_local_r? - higher-level wrapper for mdsio_writelocal
3578      Controlled by diagFreq. Defaults to zero (ie. no dumps)
3579      Example given at end of mom_vecinv.F that dumps some local arrays.
3580    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
3581      control flux-form versus vector invariant code.
3582      Switch is runtime flag vectorInvariantMomentum (defaults to false)
3583      or genmake -DISABLE ...
3584    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
3585      (additional storing is now needed for case vecinv;
3586      currently nothing implemented to switch this storing off
3587      in case fluxform is used since no CPP flag available).
3588    
3589    checkpoint40pre7
3590    o bug fix in dynamics.F
3591      calc_viscosity called before k=1,Nr loop.
3592    o added some #ifdef's ALLOW_PASSIVE_TRACER
3593    o cleaned initialisations in ctrl_map_ini
3594      related to TAF
3595    
3596    checkpoint40pre6
3597    o split dynamics into thermodynamics & dynamics
3598    o corresponding split of calc_diffusivity into
3599      calc_diffusivity, calc_viscosity
3600      (kpp_calc_diff, kpp_calc_visc).
3601    o Added diffkr, kapgm to control variables
3602    o bug fix in gmredi_slope_limit for ldd97
3603    
3604    checkpoint40pre5
3605    o proper initialization of Adams-Bashforth time stepping
3606      + uses forward step for very first step of model (iter=0)
3607    o re-generated *all* output since almost all output is modified by this
3608      change (sorry but we've been putting this one off for about 2 years)
3609      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
3610        *not* regenerated since they are already out of date and I don't
3611        want to create the impression that they are suddenly working.
3612    o removed KAP stuff for DEC's
3613    o modified/added many .cvsignore files in */code and */input
3614    o added new expt "solid-body.cs-32x32x1"
3615      + this uses an alternative form of ini_curvilinear_grid.F which
3616        is not necessarily any better than the current one...
3617    
3618    checkpoint40pre4
3619    o added re-initialisations of utrans,vtrans,rtrans in
3620      calc_common_factors which are crucial for TAF.
3621    o extended iMin,jMin range for calc_common_factors,
3622      calc_diffusivity
3623    o added option ALLOW_PASSIVE_TRACER
3624    o a few minor updates and fixes
3625    
3626    checkpoint40pre3
3627    o created calc_gtr1.F for gad package
3628    o split the_main_loop and re-introduced forward_step
3629    o some recomputations of nIter0 for TAMC
3630    
3631    checkpoint40pre2
3632    o Updated to latest branch of AJA, JMC
3633    o Added gradient check package
3634    o Added routines for passive tracer handling
3635    o Added carbon sequestration sensitivity experiment
3636    
3637    checkpoint39
3638     o Modifications and fixes to support TAMC
3639       (mainly missing or wrong directives)
3640     o Corrected common blocks when fooling TAMC to produce adjoint I/O
3641       in addummy_in_stepping
3642     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
3643     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
3644     o Included following packages:
3645       cal: calendar
3646       exf: external forcing
3647       ecco: essential routines to control use of cal, exf
3648             (NB: this is not the full ECCO environment)
3649     o disabled some packages by default in genmake
3650    
3651    checkpoint38
3652     o see notes_c37_adj.txt
3653     o corrected wrong layer index in external_forcing_t
3654     o replaced the_main_loop/forward_step by the_main_loop
3655     o removed forceoutput from write_state
3656       (replaced criteria for initial/final state)
3657     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
3658    
3659    checkpoint37
3660     o mdsio.F routine split and packaged in pkg/mdsio
3661       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
3662        used unless genmake -disable=mdsio)
3663     o allow a more precise surface-geopotential gradient for the atmosphere
3664       taking into account the change in space of Alpha (=1/rho) at the surface.
3665     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
3666       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
3667     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
3668       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
3669       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
3670     o Time-Average diagnostics defined as a pseudo package "timeave".
3671     o pickup files : old pickup (before c35) did not work with new code (c35
3672       and after) unless activating 2 commented lines in initialise-varia.
3673     o Non-Hydrostatic pickup file Pb fixed.
3674     o bug with Rigid-lid version (since c35) fixed.  
3675    
3676    checkpoint36
3677     o implement Crank-Nickelson barotropic time-stepping
3678     o recover Time-Average diagnostics
3679     o fix Pb in checkpoint (PR#19)
3680     o AIM become a standard package ; clean unused CPP_kees
3681    
3682    checkpoint35
3683     o subtantial rewrite of dynamics.f
3684     o allows staggered time-stepping
3685     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
3686     o added bottom drag (linear + quadratic)
3687    
3688    checkpoint34
3689     o Modified exchange routines for correct reverse simulation.
3690     o Added verification output to comply with bug fix in impldiff.F
3691       as of c33 (exp2, natl_box).
3692     o Corrected store directives in dynamics.F
3693     o Corrected array boundaries in impldiff.F
3694     o Corrected array dimensions in gmredi.
3695       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
3696     o Added routine GLOBAL_SUM_INT to global_sum.F
3697     o Added mdsio_gl.F for ECCO purposes.
3698    
3699    checkpoint33
3700     o Fixed bug in lower BC in impldiff.F
3701     o Fixed confusion about units of forcing arrays in FFIELDS.h
3702       namely Fu,Fv,Qnet,Qsw,EmPmR:
3703       - Removed verification/natl_box/code/external_fields_scale.F
3704         (did not differ from that in model/src)
3705       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
3706         (see FFIELDS.h for description)
3707       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
3708         kpp_calc.F and kpp_transport_t.F
3709       - Removed model/src/external_fields_scale.F and calls to it
3710       - verification/natl_box uses flux data with "atmospheric" sign so
3711         a special version of external_fields_load.F is used to
3712         change the data as it's read in. This way, the arrays
3713         have the right units and signs at all times tha a user could
3714         possibly use them.
3715     o Corrected genmake to delete a temporary file during configuration
3716    
3717    checkpoint32
3718     o Scaling of forcing fields moved from external_forcing.F to
3719       external_fields_scale.F, called directly after loading fields.
3720     o Surface relaxation terms added to surface tendency fields in
3721       extra subroutine.
3722     o impldiff.F changed to avoid storing by TAMC of huge intermediate
3723       fields.
3724     o Changes in GMRedi to comply with packaging structure.
3725     o Modifications and bug fixes in KPP package.
3726     o Verification experiment for KPP added (verification/nat_box/)
3727    
3728    checkpoint31
3729     o Packages interface brought in line with defined standard
3730       -> new routines packages_...F
3731       -> changes in initialise_fixed.F, initialise_varia.F
3732       -> enables initialisation interface for ECCO package
3733     o Rescaling of external forcing fields immediately after read
3734       (removed from external_forcing.F)
3735       -> new: surface_fields_scale.F
3736       -> affects ini_foorcing.F, external_fields_load.F
3737     o Computation of surface tendencies before tendency updates.
3738       -> new: external_forcing_surf.F
3739     o Change of variable names useGMRedi, useKPP, useECCO
3740     o Further changes in dynamics.F, impldiff.F for TAMC
3741     o Tested for experiments 0, 2, 4.
3742       - not yet tested for GMRedi.
3743       - not yet tested for KPP.
3744    
3745    checkpoint30
3746     o Updates for OBCs
3747     o New experiment for test OBCs (internal_wave)
3748     o New output.txt in verification/exp4/results/
3749     o Updates for KPP: calculation of viscosity corrected, new variables
3750       kpp_dumpFreq and kpp_taveFreq
3751     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
3752       and entry for T90 in genmake
3753    
3754    checkpoint29
3755     o packaged KPP and GM/Redi
3756    
3757    checkpoint28
3758     o Corrected initialization of hFacMin for difference vertical coordinates
3759     o Modified calculation of partial cell thickness to more robust algorithm
3760     o config_summary.F: replaced write_1D_... by write_0D_...
3761       read_write.F: added subroutines write_0D_...
3762     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
3763       included some initialisations required for TAMC.
3764     o routine calc_isoslopes: modified sqrt computation to make it
3765       differentiable for zero argument.
3766     o routines dynamics, impldiff:
3767       included store directives and tape key computations required for TAMC.
3768     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
3769    
3770    checkpoint27
3771     o fixed calc_isoslopes() to so that cancellation of terms in tensor
3772       formulation works properly with variable resolution.
3773     o restructured the calling tree between the_model_main() and dynamics()
3774     o split initialise() into initialise_fixed() and initialise_varia()
3775     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
3776       in new routine ini_psurf()
3777    
3778    checkpoint26
3779     o moved some #ifdef in optional routines to encompass everything
3780       except the argument declarations. This was using up some memory.
3781     o fixed macros like _ADT to work with both versions of Linux cpp
3782     o cleaned up some unused and uninitialized variables
3783       (helps when debugging with strict compile options)
3784     o split up CPP_EEOPTIONS.h into options and macros
3785       (macros are now in eesupp/inc/CPP_EEMACROS.h)
3786     o patch for 2 processor JAM mode
3787    
3788    checkpoint25
3789     o updates for OBCs and NH
3790     o dramatically reduced memory usage
3791     o added "JAM" routines for use on Artic network
3792     o parameterization of convection by implicit vertical diffusion
3793     o added a diagnostic of convective index
3794     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
3795       (this is was partly for OBCs and NH but also in anticipation of
3796        an explicit free-surface option)
3797     o initial state input files for U and V
3798    
3799    checkpoint24
3800     o Removed some spurious "REAL"s
3801     o Updated KPP to latest version from JPL
3802     o Added a COS(latitude) in horizontal viscosity
3803    
3804    checkpoint23
3805     o Added del^4 diffusion for salt and temperature
3806     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
3807    
3808    checkpoint22
3809     o Made many small changes: implicit none, format(i5), etc...
3810     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
3811    
3812    checkpoint21
3813     o Introduced new I/O package that supports direct-access records (mdsio.F)
3814     o Split-up mid-level I/O routines
3815     o Updated input data for experiments 0,1,2,4 and 5
3816     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
3817    
3818    checkpoint20
3819     o Tidied up open-boundaries some more
3820     o Added non-hydrostatic code
3821     o Fixed some input data
3822     o Modified MPI start-up to work in "coupled" context.
3823    
3824    checkpoint19
3825     o Tidied up directory structure for verification experiments.
3826     o Added new code for open boundaries.
3827     o Corrected advective terms near boundaries.
3828     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
3829     o Implemented free-slip/no-slip BCs and del^4 dissipation.
3830     o Split default parameters out of ini_parms.F into set_defaults.F.
3831    
3832  checkpoint18  checkpoint18
3833   o Further changes for optional code generation with   o Further changes for optional code generation with
3834     CPP - ugh!     CPP - ugh!

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