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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.980 by jmc, Thu Apr 24 19:39:28 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 remove "exp5" (replaced by tutorial_deep_convection).
8    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
9      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
10      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
11      --> changes results in dome, exp4, internal_wave, seaice_obcs, and
12      tutorial_plume_on_slope.
13    o tutorial_deep_convection :
14      update the set-up and increase resolution and domain size ; start
15      from pseudo initial conditions = output at t=120mn in order to see
16      something happening when running testreport.
17    o pkg/seaice: add os7mp as an advection scheme
18                  add check for advection schemes
19                  add a flag for restoring T and S underneath sea ice
20    o pkg/my82: add netcdf-support and diagnostics
21    o thsice pkg:
22      - Now hsMax limits snow height by turning it into ice following
23        flooding scheme (and now conserving energy)
24      - Slight rewriting of the formula in thsice_calc_thick.F
25      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
26      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
27    
28    checkpoint59p
29    o gchem / dic / cfc :
30      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
31      - add new parameter files: "data.dic" & "data.cfc" ;
32      - various re-arrangement in initialisation & header file ;
33      - fix tutorial_global_oce_biogeo for multi-threaded test.
34    o pkg/dic: test for "pickup_dic" file when restarting ;
35      if no pickup-file, can restart with a re-initialised pH (same as it did
36      before) providing pickupStrictlyMatch is set to False.
37    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
38      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
39    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
40      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
41    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
42     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
43       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
44    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
45       scheme to use for vorticty-term ;
46     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
47       (with default selectVortScheme, return to original discretisation)
48     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
49    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
50    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
51      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
52      also fix diagnostics VISCAHW & VISCA4W.
53    
54    checkpoint59o
55    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
56    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
57      move a few statemens out the main loop into separate loops
58    o pkg/shelfice:
59      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
60        (kg/m^2/s), does not break tests, because in verification/isomip,
61        rhoConstFresh=rhoConst (by accident)
62      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
63      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
64        new file model/src/seawater.F, so that they are available for all pkgs.
65      - convert potential temperature into in-situ temperature. This changes the
66        isomip tests => update tests
67    o add a flag writePickupAtEnd (default=true) to be able to suppress
68      writing a pickup at the last timestep
69    o tools/mpack-1.6 :
70      - disable automake (not working) and autoconf (not needed).
71      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
72        also cleaner with much less compilation warnings.
73    o pkg/profiles:
74      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
75      (for "less than 32 characters name" compiler requirement)
76    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
77      conditions that have a different sampling frequency than S/T/U/V obcs
78    o pkg/diagnostics (stats-diags):
79      - fix global Min/Max in case 1 processor get only empty tiles
80    o genmake2: replace (4 times)
81         make genmake_tc_1.o >> genmake_warnings 2>&1
82      with
83         COMM="$CC $CFLAGS -c genmake_tc_1.c"
84         echo $COMM >> genmake_warnings
85         $COMM >> genmake_warnings 2>&1
86      to make genmake2 always see the value of CC as specified in the optfile.
87    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
88      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
89      - modify verification advect_cs test to test SOM-advection on CS-grid.
90    o pkg/ctrl:
91      - Rewrite of ctrl_map_ini_ecco.F,
92        introducing a generic routine (ctrl_map_ini_gen.F).
93      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
94    
95    checkpoint59n
96    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
97      number in dedicate array "hdiag":
98      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
99        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
100      - many small changes (integer format) for large number of diagnostics
101      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
102        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
103    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
104      usingSphericalGrid, this allows to define the rotated grid coordinates
105      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
106      geographical coordinates according to the inverse of the rotation defined
107      by the Euler angles, so that Coriolis parameter and online-interpolation by
108      exf works with the geographical coordinates on XC/YC/XG/YG.
109      Naturally, this feature does not work with all packages, so some
110      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
111      profiles), because there the coordinates are assumed to be regular
112      spherical grid coordinates.
113    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
114      - introduce isopycnal diffusion coefficient control.
115    o tools/adjoint_options:
116      - additional control vector components.
117    o pkg/mnc: have mnc create marginally meaning full coordinate variables
118      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
119    o pkg/mypackage:
120      - add example of read/write pickup for state-var ;
121      - add entry points to the main code for state-vars diags & write-pickup.
122    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
123      transitions for useExfYearlyFields
124      - add new subroutine that determines the file to read from for
125        use*YearlyFields = .TRUE. and .FALSE.
126      - add a verification experiment to global_with_exf that tests
127        useExfYearlyFields with USE_EXF_INTERPOLATION defined
128    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
129      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
130      subroutines (which could be generated from a template, because they are
131      almost identical), for now they are included in obcs_prescribe_read.F for
132      simplicity
133    o pkg/exf:
134      - add a little more diagnostic to exf_interp_read (in analogy to
135        mds_read_field, can be turned off with debugLevel < debugLevA=1)
136      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
137        ugly but fast by unrolling short inner loops, inserting a unroll=8
138        directive in routine lagran, and splitting a loop and making do while the
139        outermost loop (the latter requires the intoduction of index arrays)
140    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
141    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
142      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
143    o verification/seaice_obcs: updated for restart test and latest options
144    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
145      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
146      for now this is only available for the C-grid code and also within
147      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
148    
149    checkpoint59m
150    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
151      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
152    o gad_som : fix flux output (& diagnostics) to have same units as other  
153      advection scheme fluxes (was previously multiplied by deltaT).  
154    o added verification/seaice_obcs both to test seaice open boundaries
155      and to provide an example matlab scrpt for generating them
156    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
157    o pkg/salt_plume: clean up salt_plume_frac.F to
158      remove redundancy in PlumeMethod 1 and 4
159    o pkg/kpp: added saltplume diagnostics
160    o pkg/obcs and pkg/seaice:
161      - do not set uice and vice to zero when OB*icefile are unspecified
162      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
163      - moved seaice tracer obcs after call to seaice_growth
164    o pkg/salt_plume: added various options for salt plume depth
165      criterion and for vertical distribution of the salt
166    
167    checkpoint59l
168    o pkg/ptracers: new version of ptracers pickup:
169      read meta file and write only fields which are needed to restart.
170      ( same logic as main pickup file ; also using pickupStrictlyMatch )
171    o pkg/seaice:
172      - add timescale for melting due to warm mixed layer as a means of
173        setting SEAICE_availHeatFrac more conveniently
174      - add a CPP-flag/runtime parameter check for flooding algorithm
175      - reformulated availHeat in seaice_growth.F to be independent of AREA
176    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
177      unit changes
178    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
179    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
180      SX vector computer.
181    o pkg/seaice:
182      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
183        seaice forcing fields can now be read only through pkg/exf
184      - removed some unused halos
185    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
186    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
187      or U/VICE from U/VWIND before computing U/VSTRESS
188    
189    checkpoint59k
190    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
191      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
192    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
193      all experiments pass when compile with un-initialised var. checking option.
194    o added pkg/salt_plume
195    o script to test restart (for now, in MITgcm_contrib/jmc_script)
196    o pkg/seaice: new read/write pickup version.
197      read meta file and write only fields which are needed to restart.
198      ( same logic as main pickup file ; also using pickupStrictlyMatch )
199    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
200    o lab_sea.hb87: modify the domain & update output.hb87.txt :
201      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
202      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
203      process. Fixed here by closing the domain at the Northern boundary.
204    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
205    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
206      a set of consecutive levels in/from a 3-D array.
207    o pkg/ptracers:
208      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
209      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
210    
211    checkpoint59j
212    o in pkgs: dic, obcs, offline, rbcs:
213      standard way to compute coeff. for time interpolation between 2 time reccords
214      which retains full precision (& make results less dependent on compiler).
215      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
216    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
217      packages instead of reading ice cover and wind speed separately
218    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
219     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
220      to allow to compile customized code before the update)
221    o cleaning-up:
222      - fix CPP instruction syntax in pkg/obcs
223      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
224        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
225      - fix some threads issue in IO parts.
226    o pkg/dic:
227      - add tons of "_d 0" (--> much better testreports !)
228       and then update outputs of tutorial_global_oce_biogeo
229    o pkg/mom_fluxform:
230      add a special version of momentum advection intended to conserve momentum
231      next to a bathymetry step or a coastline edge. (default = off = #undef)
232    o new read/write pickup version:
233      - for now, only implemented for main (mdsio) pickup file.
234      - write out only what is needed to restart; merge pickup_nh , pickup_ph
235        and main pickup together.
236      - read meta file; read only what is needed to restart; stop if a field
237        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
238        if it make sense (even if the restart is not perfect).
239      - if no meta file, assume that pickup to read corresponds exactly to
240        a pickup that would currently be written.
241      - read pickup written in the old format (until checkpoint59i) if it
242        recognizes an old meta file (no field-list).
243      - add a meta file in exp. which starts from a pickup: 2 cases:
244        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
245         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
246        b) a meta file describing the content of the associated pickup file
247         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
248    o pkg/mdsio & pkg/rw:
249      - new routine to read a meta file ; new set of routine to read
250        Multiple-fields file (with meta file).
251    o added open boundary conditions capability for seaice
252        HSNOW, HSALT, UICE, and VICE
253    
254    checkpoint59i
255    o adjoint:
256      * fix multiDimAdvection adjoint
257        (partial recomputation problem by TAF for fVerT(:,:,kDown)
258        and comlev1 size definition (maxpass vs. max. number of tracers)
259      * verification/global_ocean.90x45x15 adjoint now tests
260        NLFS and multiDimAdvection using DST3 (=30)
261      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
262    o pkg/kpp: add "_d 0" to real constant (if missing);
263      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
264      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
265    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
266      for internal parameters related to restart process (formerly from PARAMS.h)
267      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
268    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
269      as argument. (only atm2d & obcs write_pickup have not yet been updated)
270    o pkg/monitor:
271      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
272      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
273      - account for deep Atmosphere factor and density factor (anelastic)
274    o added open boundary conditions capability for seaice HEFF and AREA
275    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
276      thermodynamics
277      - requires a little reorganization, which affects the testreport results
278        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
279        so that now the conservative form is tested
280      - add a few comments
281    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
282    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
283    o add new diagnostics to seaice: advective, diffusive fluxes (only for
284      multidim-advection, for scheme 2 they are not filled) and transports,
285      thermodynamic growth rates
286    o change units of EmPmR (inside the code, + within coupling interface)
287      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
288      Affects results @ truncation level (cg2d match) and update output of
289       experiments: lab_sea(6), global_ocean.90x40x15(10),
290      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
291      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
292      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
293      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
294    
295    checkpoint59h
296    o pkg/exf:
297      - improve vectorization by moving if-statement out of loops in
298        exf_mapfields, exf_radiation
299      - exf_bulkformulae.F: introduce 2D fields and vectorize code
300    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
301    o testreport:
302      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
303        monitor & update offline_exf_seaice exp. output.
304      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
305    o pkg/seaice:
306      - bug fix in the evp solver: boundary conditions were affected be
307        masking of zMax/zMin (changes results)
308      - minor bug fix in boundary conditions in seaice_calc_strainrates
309        (changes results for no_slip)
310      - seaice_lsr.F: make interpolation of eta dependent on boundaries
311      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
312      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
313        stress formulation and no-slip boundary conditions
314    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
315      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
316    o pkg/seaice: a first HSALT time stepping equation has been checked in
317    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
318      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
319      without requiring DO-IF statements
320    o pkg/thsice:
321      use continuous power-law function for partition of energy between lateral
322      melting/freezing and thinning/thickening ; old code using step function
323      still available with #undef THSICE_FRACEN_POWERLAW
324      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
325    o testreport: change AD testing : check against results/output_adm.txt
326      using same scripts as for forward test.
327    
328    checkpoint59g
329    o adjoint testing: in preparation for changing testreport:
330      - output format: cost and grad written on separated lines
331      - ad output results in directory "results" (instead of "results_ad")
332    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
333    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
334    o pkg/ecco: allow user defined cost function contributions
335    o testreport:
336      Allow to choose (per experiment) the list of tested output variables
337       and the main variable (used to issue a pass/FAIL ) ;
338      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
339      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
340      Also modify printing of summary:
341       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
342       b) echo the list of tested variables in the individual summary.txt of
343          each experiment.
344    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
345      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
346      (but still depend on the tile decompostion of the domain).
347    o pkg/seaice: change a discretization detail to make the B-grid code
348      "more symmetric". This change is likely to remove all "ridges/leads" that
349      where quasi-aligned with the grid in B-grid solutions. It may also be
350      the solution to the stress coupling issues with the B-grid.
351    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
352      remove .cvsignore from input dir. (since testreport no longer run here).
353    o pkg/thsice:
354     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
355     - fix reshaping of sea-ice just after advection:
356       melt all the ice only if ice-volume is too small.
357     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
358       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
359     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
360    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
361      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
362    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
363      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
364      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
365      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
366      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
367      -> update output.txt
368    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
369     this affects truncation error: -> update output.txt of exp:
370      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
371      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
372    
373    checkpoint59f
374    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
375    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
376      a bounded range (in forward mode)
377    o pkg/ecco, ctrl, autodiff and mom_common:
378     internal parameter controls, completements of implementations
379    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
380    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
381      (not seem any difference in testing results).
382    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
383       at face corners.
384    o pkg/generic_advdiff:
385     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
386      loop range indices for computing vertical advection tendency
387      and do the calculation in the interior only (no overlap) ;
388      for now, only implemented for SOM advection (to save CPU time).
389     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
390    o exch2 adjoint
391      First set of changes:
392      - add exch2 hand-written adjoint templates
393      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
394        This will require cleanup in pkg/autodiff/*.F
395        (changed routines currently kept separate in verif. code/)
396      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
397        that used to hide exch2 or cubed-sphere specific code
398        (commented via 'cph-exch2')
399    o pkg/seaice
400      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
401    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
402       output of global_ocean.cs32x15.thsice .
403    
404    checkpoint59e
405    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
406      for B-grid vector (not yet tested) and C-grid vector (<- only used
407      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
408    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
409      (#ifdef ALLOW_SALT_PLUME)
410    o gather_2d/scatter_2d: removed halo regions
411    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
412      scheme and the corresponding test case (under front_relax dir). For now,
413      only available with Skew-flux form and not yet tested in realistic set-up.
414      adjoint: store directives updated, but gradient checks deteriorated,
415      so maybe GM/Redi adjoint is now broken.
416    o seaice adjoint
417      * add AREA, HEFF, HSNOW as control variable
418        (should not change lab_sea results)
419      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
420    o pkg/seaice:
421      * added computation of saltFlux in seaice_growth;
422        For time being, sea ice salinity is assumed constant
423        contribution of snow flooding to freshening of sea ice is neglected.
424        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
425        defaults to 0.0 in order to maintain backward compatibility.
426        Typical values for SEAICE_salinity are 4 to 10 g/kg.
427      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
428      * added SEAICE_availHeatFrac, which specifies fraction of surface level
429        heat content used to melt or grow ice
430      * commented out cap of HICE: it helps keep ice thinner
431      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
432      * applied OBCS T/S mask to HEFFM sea ice mask
433    
434    checkpoint59d
435    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
436     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
437     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
438    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
439     and change default value of parameter "GM_Small_Number";
440     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
441       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
442       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
443    o pkg/ecco: cost function when applying pkg/smooth to controls
444    o pkg/ctrl: add forcingPrecond run time parameter
445    o pkg/seaice:
446     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
447     - fix bug in metric terms of u-equation in LSR solver (implicit part),
448       changes verification/lab_sea
449     - rearrange implicit part of u-equation in LSR solver to make it easier to
450       read, understand, and debug. This causes changes at the truncation level.
451     - fix (serious) bug in the boundary conditions (sign error in the implicit
452       part) of the LSR solver. Changes all LSR results.
453     - fixed problem with HSNOW initialization to avoid thick snow when AREA
454       is initilized with small values - does not change lab_sea results.
455     - added HsnowFile initialization capability
456    o pkg/smooth: addition to model/src and pkg/ctrl so allow
457     initialization of pkg/smooth and application to control vector
458    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
459    o dependencies: pkg/profiles requires pkg/cal
460    o pkg/profiles:
461     - added option ALLOW_PROFILES_GENERICGRID
462         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
463         that interpolation information (grid points and coefficients) is provided
464         within the netcdf input files.
465         -> sample matlab scripts can be found in MITgcm_contrib/gael
466         that allow you to prepare netcdf input files.
467     - also modified: cleaner include statements, cleaner error print statements,
468       cleaner stops when error, and more tests of the netcdf input files consistency.
469    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
470    o pkg/seaice:
471     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
472       requires a new routine: seaice_diagnostics_fill.F
473     - make sure that seaice does not move if not forced (pressure replacement
474       method, Hibler and Ip, 1995), changes results
475     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
476     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
477       It is turned off by default (=-1.), because it changes the results.
478     - make it possible to read AREA from a file, too.
479    
480    checkpoint59c
481    o add S/R and diagnostics for oceanic mixed-layer depth
482    o move GMRedi call after all vertical mixing schemes (including KPP)
483    o pkg/thsice:
484     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
485      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
486    o pkg/obcs:
487     - bug fix for balance code
488    o pkg/seaice:
489      - allow values of SEAICE_elasticParm > 1
490      - add new parameter SEAICE_evpTauRelax as an alternative
491        to SEAICE_elasticParm
492      - make lsr boundary conditions free slip (by default), changes result
493      - add code for no slip boundary conditions for lsr
494      - set minimum of zeta to zero (and not 4e8) (changes results)
495      - add a cap on AREA after advecting AREA if seaice_growth is not called
496    o change calculation of Visbeck K:
497      - no longer depend on tapering scheme; instead, compute slope (limited
498        by GM_maxSlope). this is equivalent to what was comuted before with
499        clipping or linear tappering.
500      - fix vertical averaging (wrong by 1/2 level)
501      - leave the old version (but will not be maintained) within
502        #ifdef OLD_VISBECK_CALC / #endif
503      - update output of exp. ideal_2D_oce
504    o change error catch in calc_r_star to improve vectorization
505    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
506      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
507    o adjoint:
508      Re-organized adjoint checkpointing according to Matt Mazloff
509      (but with modifs/completions/cleanups)
510      Storing is now bundled into large arrays to optimized I/O
511      (and second step in cleanup of the_main_loop)
512    
513    checkpoint59b
514    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
515      - export/import (between ocean & coupler) fields needed for ocean DIC.
516    o pkg/seaice:
517      - get rid of three more exchanges seaice_calc_viscosities (required
518        different loop boundaries in seaice_lsr and seaice_ocean_stress)
519      - bug fix in seaice_ocean_stress (update of lab_sea required)
520      - reduce loop boundaries to necessary minimum also in seaice_evp
521      - go back to the old way of computing deltaC/Z as the adjoint likes that
522        better
523    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
524      passive tracer to an Age Tracer) + update output.txt
525    o pkg/exf:
526      - implement A-grid / C-grid selection for wind-stress input files.
527      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
528      for now, in exf_bulk_largeyeager04.F only :
529      - change implementation for case where windspeed + 2. components wind-stress
530        are read-in. AND use rhoConstFresh to convert evap.
531    o pkg/seaice:
532      - use correct EXCH_UV for wind-forcing (on A-grid).
533      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
534        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
535    o pkg/exf:
536      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
537      EXF_INTERPOLATION:
538      - merge global_with_exf/code version of exf_interp_read.F
539        to the main code ;
540      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
541        reading the file ; Important: This options needs to be defined to recover
542        previous code.
543        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
544      - no longer loose real*8 precision along the way when using exf_iprec=64.
545    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
546      - change discretisation of evp-solver in order to avoid another exchange
547        (changes lab_sea) and clean up a little
548      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
549        help the adjoint (this also changes the results slightly)
550      - add a few "_d 0" where they had been missing in seaice_evp.F
551      - cleaning up: remove unused seaice_calc_rhs.F
552    o pkg/exf: some cleaning-up:
553      - change various "constants" into runtime parameters
554      - cleaned-up Large&Yeager04 routine which should eventually
555        replace exf_bulkformulae.F (changed names of S/R and CPP)
556        and merged various ALLOW_ATM_WIND options
557     only used with thsice pkg (in thsice_get_exf.F):
558      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
559        which are used when useStabilityFct_overIce=TRUE (= the default)
560      - change default values of ice & snow emissivity and scale downward LW
561        by ice & snow emissivity.
562    o pkg/thsice:
563     fix few little problems, in thsice_calc_thickn.F:
564      - growth vertically (and not laterally) if iceFrac == iceMaskMax
565      - melt only laterally if hIce < hThinIce (as the comments say)
566      and in thsice_extend.F:
567      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
568      - start to form ice as soon as the minimum ice-volume is reachable.
569     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
570      and cpl_aim+ocn
571    o pkg/kpp
572     - move computation of surface related input fields to KPP into a new
573       subroutine kpp_forcing_surf.F
574     - remove wrong (within bi,bj loops) EXCH calls.
575     - little cleaning (add argument myThid in last position, cvs header ...)
576     - for now, fix conservation problem by exchanging KPPviscAz (may not
577       be the best fix)
578    o pkg/seaice
579     - check for inconsistent evp parameter/cpp-flag combination
580     - remove leftover errIO flat for obsolete name list error handling
581    o OpenAD
582     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
583    
584    checkpoint59a
585    o pkg/seaice: some parameter clarifications and a little bit of clean up
586    o pkg/thsice: rename run-time parameters:
587       himin       -> hIceMin
588       himin0      -> hThinIce
589       hihig       -> hThickIce
590       i0          -> i0swFrac
591       transCoef   -> bMeltCoef
592       frac_energy -> fracMelting
593      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
594       with default values (for now) that do not change the results.
595      remove old version of thsice vars advection in pkg/seaice.
596    o in FFIELDS.h:
597      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
598      - make pLoad & sIceLoad always available (but still only used if
599         ATMOSPHERIC_LOADING is #define).
600    o pkg/kpp: replaced _KPP_RL with _RL
601    o bug fixes for vertical diffusivity computations when both KPP and
602        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
603        are no longer updating the vertical diffusivity array
604        (passed as argument) but are (re-) setting those arrays.
605    o pkg/seaice: fix bug in evp solver, while doing that
606      - change (improve?) discretization of stress computations for both
607        cgrid-lsr and evp solver
608      - add a new routine to compute strain rates
609      - the above changes lab_sea results
610      - add no slip conditions for evp solver (off by default), lsr-version
611        may follow
612      - fix exchange for shear at Z-points (does not change lab_sea)
613      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
614        (to force the user to pick a time step since there is not "safe" way
615        of choosing it)
616      - add principal stress diagnostics
617      - rearrange fields for evp a little to avoid having to call a: too many
618        exchanges and b: exchanges for stress trensor components which we do
619        not have.
620      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
621        of evp, complete rewrite for lsr case (latter is does not yet work
622        in all cases)
623    o pkg/kpp: add code to have mixing in shelf ice caverns
624      - add myThid to all kpp routines (long overdue)
625    
626    checkpoint59
627    o pkg/exf:
628      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
629        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
630      - move exf header files from lower_case.h to UPPER_CASE.h ;
631        add missing cvs Header & Name
632      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
633      - add namelist param. selectStressGridPosition, exf_monFreq
634      - retire many _CLIM routines, and remove data.exf_clim
635        + params moved to data.exf
636        + climsst, climsss now handled by exf_set_gen, i.e.
637          climss?period=0 refers to constant field,
638          climss?period=-12 to monthly forcing
639      - split up namelists in data.exf
640    o pkg/seaice:
641      - remove seaice_exch and seaice_exch_uv
642      - remove superfluous exchange of theta
643      - add myThid to seaice_budget_ocean/ice
644      - add new interface for atmospheric wind forcing (C-grid only)
645        + new routine
646        + two new field (taux, tauy for stress over ice)
647        + removed one global field (DAIRN) for C-grid case only
648    o pkg/thsise
649      - 2nd set of modifs for thsice adjoint in conjunction with exf
650    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
651    
652    checkpoint58y_post
653    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
654      vertical diffusivity, similar to that in MOM4; turned on using
655      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
656      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
657    o Added capability for 3D specification of background vertical diffusion
658      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
659      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
660      "data" file that contains the 3D vertical diffusivity coefficients.
661    o ice dynamics (pkg/seaice) with thsice thermodynamics:
662      - add code within pkg thsice to advect & diffuse sea-ice fields
663      similar to (and will replace) what has been added in  seaice_advdiff.F,
664      but: - conserving Mass, Heat & Salt.
665           - better when using non-linear advection scheme (not yet fully tested)
666           - can also be used in atmospheric set-up (for now, only the diffusion).
667    
668    checkpoint58x_post
669    o IO option for global-file compact format:
670      - add options when generating topology (utils/exch2/matlab-topology-generator)
671      - add I/O capability (pkg/mdsio).
672      - adapt utils/matlab/rdmds.m to read this format.
673      for now long-line format not yet supported by pkg/mdsio (& exch2).
674    o shelfice: add a few diagnostics
675    
676    checkpoint58w_post
677    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
678      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
679      (and replace horiVertRatio in NH code).
680      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
681                         and tutorial_plume_on_slope (sensitive to truncation)
682    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
683      directly to drive seaice model (C-grid only)
684    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
685     - reintroduce computation of wind from stress,
686     - compute tau (in exf_bulkformulae.F) from windstress averaged to
687       mass points to avoid tau = 0
688     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
689    o rdmnc.m: make it work with "global" files created with gluemnc
690    o rdmnc.m : some improvements in dealing with singleton dimension
691      (tested on all testreport mnc output files).
692    o genmake2: disable pkg/profiles if netcdf test fails.
693    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
694    o move call to cal_readparms up to make calendar parameters/variable available
695      to all packages
696    
697    checkpoint58v_post
698    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
699      useDynP_inEos_Zc tested.
700    o pkg/exf: changes to properly interpolate/mask/scale initial fields
701    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
702      and portions thereof.  See read_cs.txt for description and examples.
703    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
704      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
705      following the great-circle arc between those 2 points.
706    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
707      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
708    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
709     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
710     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
711     - still needs work (not working with some options ; efficiency to improve)
712       and serious testing.
713     - use this scheme for temperature & salinity in 2 advection test exp.:
714       advect_xy & advect_xz, respectively.
715    
716    checkpoint58u_post
717    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
718    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
719    o testreport: add option "-skipdir" to skip some test.
720    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
721      momentum calculation.
722    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
723    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
724      remove checkpoint.F and the_correction_step.F (no longer used);
725      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
726    o add option (linFSConserveTr) to correct for tracer source/sink due to
727      Linear Free surface
728    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
729    o pkg/thsice: fix reading mnc-pickups
730    
731    checkpoint58t_post
732    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
733    o pkg/mdsio:
734     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
735       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
736       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
737     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
738     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
739       either MDS_READ_FIELD or MDS_WRITE_FIELD )
740     - new S/R (to replace MDSWRITEMETA), which allows to write more
741       informations (variable names, time ...) to meta files.
742     - modify rdmds.m to give back the meta file content.
743    o pkg/diagnostics: change vertical interpolation to be safer, and more
744       flexible (define p-levels to interpolate to in data.diagnostics);
745      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
746       diagnostic pointer.
747    o pkg/seaice: more cleaning up of seaice_growth, added many comments
748    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
749    o fix multi-category seaice:
750     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
751       SEAICE_MULTICATEGORY
752     - fix short wave heat flux
753    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
754       and allow to use EVP solver. Change forward lab_sea: test both EVP
755       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
756    o Initial check-in of lab_sea adjoint
757      (very similar to natl_box_adjoint/code_seaice)
758      * used C-grid and EVP solver
759      * used KPP, GM/Redi
760      * uses inAdExact=.TRUE.
761      * gradient checks fail for both ADM and TLM
762        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
763        f.d. gradients actually seem more problematic than ADM, TLM gradients;
764        issue is related to forward mismatch between g77 an ifort
765    o pkg/seaice: overhaul of thermodynamics
766     - growth.F and groatb.F are replaced by new routine seaice_growth.F
767     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
768     - move a few global fields out of SEAICE.h into seaice_growth.F and
769       make them 2D (FICE/QNETO/ ...)
770     - remove FO (it is the same as QNETO)
771     - introduce a few local fields to avoid modifying external fields such
772       as atemp, etc.
773    
774    checkpoint58s_post
775    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
776      changed exf_set_gen.F so that
777        genperiod=0 means input file is one time-constant field and
778        genperiod=-12 means input file contains 12 monthly means
779    o CG2D: use pre-computed solver main-diagonal (stored in common block);
780      this affects truncation error ; generate new output file for exp. which
781      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
782        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
783        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
784        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
785        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
786        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
787    o start implementation of deep-atmosphere and anelastic formulation
788    o verification: remove 2nd copy of input files and use script "prepare_run"
789      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
790    o mom_common/vecinv/fluxform: fix a few initialisation isssues
791    o profiles: fix for multithreaded case
792    
793    o diagnostics: rename few diags:
794      s/'PRESSURE'/'RCENTER '/g
795      s/'TICE    '/'oceFreez'/g
796      s/'TAUX    '/'oceTAUX '/g
797      s/'TAUY    '/'oceTAUY '/g
798      s/'SWFLUX  '/'oceQsw  '/g
799      s/DIFx/DFxE/g
800      s/DIFy/DFyE/g
801      and add few ocean-forcing diagnostics:
802      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
803    o modifications to pkg/seaice/growth.F and budget.F, which change results of
804      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
805      as actual snow thickness.  It now refers everywhere to effective snow
806      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
807    
808    checkpoint58r_post
809    o modifications to pkg/seaice/growth.F, which change results of
810      lab_sea experiment: fixes pertain to melting snow over open water, to
811      masking EVAP under sea ice, and to using the correct AREA variable for
812      computations of EVAP, PRECIP, HSNOW, and GHEFF
813    o add ability to read bathy, salt, and theta using MNC (off by def)
814    o add flooding algorithm and advection of HSNOW for pkg/seaice;
815      both are turned off by default and do no change any results
816    o seaice advection with pkg/thsice: a step toward the use of non-linear
817      advection scheme, but #ifdef or commented out for now (requires more EXCH).
818    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
819      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
820      in natl_box (affects results @ truncation level: update output.txt)
821    o multi-threading and IO:
822      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
823      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
824        (needed to work with SingleCpuIO): tested in all verif. exp.
825    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
826      affects the results (but none of the verification test uses this scheme).
827    o Adding some pkg/diagnostics capability to pkg/seaice
828      (will certainly be subject to changes)
829    o ctrl: adding new control variables:
830      lwflux, lwdown, evap, snowprecip, apressure, runoff
831    
832    checkpoint58q_post
833    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
834      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
835      high_res_cube configuration by 4% on Columbia.
836    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
837      add (in global_with_exf/code) a version of EXF_INTERP_READ without
838      dynamical allocation (seems to work in multi-threaded).
839    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
840      single CPU io) so that TAF does not have to see EESUPPORT.h
841    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
842    
843    checkpoint58p_post
844    o obcs: stop if obcs is used with useCDscheme = .true.
845    o shelfice:
846     - fix a sign error so that no slip at shelfice interface works
847     - remove stop for combination non-hydrostatic code and shelfice. That does
848       not mean, that the results are correct, but at least they are numerically
849       stable
850    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
851    o added adjoint exch routined for all exch*3d* routines
852      and updated flow directives
853    
854    checkpoint58o_post
855    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
856      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
857    o change controling S/R for writing pickup file (new S/R do_write_pickup)
858      and clean-up reading/writing of pickup files.
859    o fix local version of read/write pickup (NH part) in rotating_tank/code
860    o simplify EXCH interface:
861     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
862     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
863    o added the regrid package
864    o shelfice:
865     - add a simple boundary layer scheme to reduce noise
866     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
867    
868    checkpoint58n_post
869    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
870       local variable (not in common block).
871    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
872      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
873      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
874        to work with SingleCpuIO.
875    o add "_d 0" to real constant of pkg/cfc subroutines ;
876       update exp. cfc_exemple & tutorial_cfc_offline output files.
877    o multi-threading and IO:
878      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
879        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
880      - barrier before and after reading.
881      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
882      - avoid using MDS_WRITELOCAL for LAND pkg output.
883      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
884        common-block variables ; Allows multi-threading with master-thread IO.
885    o change default MAX_NO_THREADS from 32 to 4 ;
886      and stop cleanly when MAX_NO_THREADS is too small.
887    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
888    
889    checkpoint58m_post
890    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
891       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
892    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
893       keep global_ocean.90x40x15 (for AD testing) with former secondary test
894       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
895    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
896        add MITgcm_tutorials (= code + all the tutorials)
897    o ecco, option to compute cost for total ssh (mean+anom)
898    o consistent with addition of ptracer and ssh in pkg/profiles
899    o profiles: adding ptracer and ssh
900    o testreport: change multi-test output-file name
901      (from output.txt.{name} to output.{name}.txt)
902    o profiles: now ok for mutli-tiles case
903    o seaice: add 4 parameters for different advection schemes for area,
904      (effective) seaice thickness, enthalphy, and snow height. Their default
905      is the standard parameter SEAICEadvScheme
906    o calc_gw:
907     - add cosFacU in zonal viscous flux (harmonic.visc.).
908     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
909       of tutorial_plume_on_slope.
910    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
911    o calc_gw: true flux-form, account for horizontal grid spacing.
912      update rotating_tank results, but not plume_on_slope (affected at
913      truncation level, 11 digits).
914    
915    checkpoint58l_post
916    o calc_gw:
917     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
918     - remove side-drag for now (need to fix it); update plume_on_slope results.
919     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
920    o commit code to make SST/SSS weights spatially variable
921      (based on either variable in-situ or variable initial T/S weights)
922    o pkg/ecco:
923      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
924        now based on horizontally varying weights wthetaLev, wsaltLev
925      * cost_averagesflags now returns year indices in addition to day, month
926      * sflux balance is performed on annual basis
927        (sflxumm, sfluxmm2, bal_sfluxmm)
928      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
929        including separate counting and multipliers
930    o pkg/rbcs
931      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
932    
933    checkpoint58k_post
934    o testreport:
935     - always build in dir. "build" (if not there, mkdir build instead of building
936       & running in input)
937     - run in dir run (if it exists), in build otherwise.
938     - call prepare_run (if input/prepare_run exists)
939     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
940    o pkg/exf modifications to interpolation and rotation routines for more
941       reasonable treatment of North Pole singularity: for tracers North Pole
942       value is set to northernmost zonal-mean value, for zonal velocity it is
943       set to zero, and for meridional velocity it is set to northernmost value.
944    o pkg/exf/exf_check_range.F
945     - add tile index to diagnostics and move stop statement to the very
946       end of the routine.
947    o pkg/diagnostics: (diagnostics_main_init.F)
948      define title of isomorphic variables according to the current config.
949    o pkg/thsice with pkg/seaice dynamics:
950    - fix domain of computation (interior only, required for exf) and do exchanges
951    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
952    o towards a standard way of dealing with multi-threading in MONITOR
953      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
954    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
955       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
956    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
957    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
958    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
959       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
960    o tracer advection:
961     - clean-up and simplify calc_common_factors.F
962     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
963       advection subroutine (but still not used within DST advection S/R)
964    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
965    
966    checkpoint58j_post
967    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
968      from file (collects calls previously in FORWARD_STEP)
969    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
970    o adjoint store dir. adjusted accordingly
971    o genmake2
972      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
973    
974    checkpoint58i_post
975    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
976      on wind stress (SEAICEstressFactor defaults to 1.)
977    o Total number of Timers is finite (<=40): comment out 2 non-essential one
978      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
979    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
980      on CS-grid: no longer loosing mass.
981    o exf & curvilinear-grid: no longer modify longitude xC & xG.
982    o pkg/ggl90: fix sloppy output and fix a bug
983    o pkg/seaice: added SEAICEuseEVPpickup parameter
984      - Set to false in order to start EVP solver with
985        non-EVP pickup files when using SEAICEuseEVP
986      - fix sign error in diffusion in seaice_calc_rhs
987    
988    checkpoint58h_post
989    * Modifications for bottom topography control
990      o replace hFacC by _hFacC at various places
991      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
992      o add non-self-adjoint cg2d_nsa
993      o update autodiff support routines
994      o re-initialise hfac after ctrl_depth_ini
995      o works for 5x5 box, doesnt work for global_ocean.90x40x15
996    * Adding verification for 5x5 box (4-layer) bottom topography control
997    
998    checkpoint58g_post
999    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1000       used for mean seasonal cycle, mean diurnal cycle); add an example
1001       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1002    o pkg/ggl90:
1003      - add parameter (minimum surface kinetic energy)
1004      - fix bug (avoiding division by zero)
1005    o couple pkg/thsice to pkg/seaice:
1006      - modify advection in seaice to accomodate new scalar fields to be advected
1007      - only muliDimAdection scheme work with seaice/thsice
1008      - mapping of thsice-variables to seaice-variables, back and forth
1009      - does not break the verification experiments, but does not give the
1010        desired results either
1011    o pkg/seaice
1012      - make (default) second order advection a bit less confusing?
1013    
1014    checkpoint58f_post
1015    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1016      to pkg/seaice):
1017      - new routines thsice_map_exf and thsice_get_exf provide the interface
1018      - add an additional formal parameter to thsice_solve4temp
1019    o pkg/exf:
1020      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1021      - correct Stefan-Boltzmann constant
1022      - new parameter for longwave surface emittance
1023      - separate some stuff from exf_bulkformulae into new routines  
1024        exf_radiation, exf_wind
1025      - add new parameters and constants: longwave emissivity for ocean, ice
1026        and snow, evaporation parameters over ice
1027      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1028        either wind from stress or stress from wind
1029    o pkg/thSIce:
1030    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1031    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1032       and THSICE_CALC_THICKN
1033    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1034    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1035      to make debugging easier.
1036    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1037    o pkg/bulk_force:
1038      - clean-up comments and parameters ;
1039      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1040    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1041      generate new output for test-experiment: aim.5l_cs.thSI
1042    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1043      testreport accordingly
1044    
1045    checkpoint58e_post
1046    o SEAICE_CGRID adjoint done
1047    o R_STAR adjoint implemented.
1048      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1049      * need to sort out init. of h0facc, etc.
1050    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1051      to be able to use it in pure forward.
1052    
1053    checkpoint58d_post
1054    o upgrade simple test-experiment to tutorial example:
1055     step.1: duplicate the experiment and (step.2) will remove the old copy.
1056      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1057      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1058      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1059      tutorial_global_oce_biogeo    <- copy of dic_example
1060      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1061      tutorial_plume_on_slope       <- copy of plume_on_slope
1062      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1063      tutorial_global_oce_optim     <- empty for now (David ?)
1064      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1065     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1066    o correct a sign problem in cost_scat.F
1067    o obcs and ptracers: fix boundary conditions for advections schemes
1068      with larger stencil
1069    o thsice adjoint: start
1070    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1071      completeness
1072    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1073      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1074    o ptracers adjoint:
1075      * avoid extensive recomputatations
1076      * fix missing re-init. of gptr (missed by TAF)
1077    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1078      me to turn off the excessive output to STDOUT that this package produces
1079    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1080      and add those terms in Vector-Invariant formulation.
1081    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1082      if the control period (xx_hfluxperiod etc) is 0
1083    o in profiles pkg, clean routines and fix details
1084    o in ecco pkg, reading ssh data:
1085      fix problem in case the model does not start at iter0=0
1086    o fix mnc-pickup/restart for ptracers
1087    o new package prifiles:
1088      code to compute profile-based cost by Gael Forget
1089      (modifs in ecco, ctrl, autodiff)
1090    o Benign bug fix in initialization (spotted by M. Mazloff) of
1091      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1092    
1093    checkpoint58c_post
1094    o adjoint: finish NLFS adjoint and provide reference output in
1095      verification/global_ocean.90x40x15/results_ad_nlfs
1096    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1097      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1098      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1099      with SEAICE_CGRID defined.
1100    o move calendarDumps from "data" to "data.cal" and clean-up the code
1101      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1102    o add useEXF & useCAL flags (for now, set in hard-coded way)
1103    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1104      (were missing in NH mode, and wrong in quasihydrostatic mode).
1105      waiting for Chris updated version of calc_gw to add those CALLs.
1106    o fix bug in quasihydrostatic S/R ;
1107      add a test for this option: global_ocean.90x40x15.qshyd
1108    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1109      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1110    o add on/off flag useOffLine for package OFFLINE
1111    o seaice:
1112      - modify advection so that it works also on the C-grid
1113      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1114        problem in multi-tile runs with C-grid
1115      - add flags for clipping ice velocities and/or masking solver forcing
1116      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1117        C-grid solver
1118      - added a few comments to seaice_diffusion.F
1119      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1120        are now exclusive)
1121      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1122        required re-ordering the code a little:
1123       + make DAIRN global variable (defined in SEAICE)
1124       + move computation of the viscosities eta and zeta into a new separate
1125         routine (because I need to recompute them in seaice_ocean_stress.F)
1126    
1127    checkpoint58b_post
1128    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1129      update output.txt of exp. aim.5l_cs.thSI
1130    o various mnc cleanups and improvements:
1131      + shrink lookup tables by factor of ~4
1132      + better error reporting when running out of lookup space
1133      + able to handle longer path/file names (up to 500 chars)
1134    o adjoint:
1135      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1136      - TBD: "hidden" mom_vecinv recomp. in dynamics
1137    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1138     (allow to differentiate between forcing components using new integer flags:
1139      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1140     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1141    o ecco
1142      - enable trend removal from SSH anomaly obs.
1143    o adjoint
1144      - a fix for PmEpR when #undef EXACT_CONSERV
1145      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1146      - try to fix "hidden" recomp. in forward_step for NLFS
1147        (NLFS seems broken sometimes after I checked it in)
1148    o seaice:
1149     - add c-grid version of the dynamic solver:
1150       + three new routines that are the c-grid substitute lsr, dynsolver
1151         and ostres
1152       + put a few fields that were local to dynsolver into global common
1153         blocks, so that I can move the computation of stresses etc into
1154         seaice_lsr (saves coding but may break the adjoint).
1155     - replace more hardwired parameters by runtime parameters
1156     - add ice masks that mask the rhs of the implicit solvers where there
1157       is no ice (commented out in seaice_dynsolver, because i am not sure
1158       if this works properly), eventually this should replace the clipping
1159       of ice velocities in seaice_dynsolver to +/-40cm/s.
1160    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1161      include it only where its needed
1162    o move balancing of fluxes before the call of external_forcing_surf
1163    o seaice:
1164      - correct units of turning angles (now they are really in degrees)
1165      - move computation of GWATX/Y out of main routine into dynsolver
1166      - initialize GWATX/Y in seaice_init
1167    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1168      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1169    o seaice: add runtime flags for turning angles (default to zero)
1170    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1171      and trend from exf forcing and ctrl control adjustments
1172    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1173      (since checkpoint57x_post)
1174    o change the default rotation period to 86164.s = the Earth rotation
1175    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1176      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1177    o seaice advection: add code for choosing between the default (2nd order
1178      central differences) and multiDim advection schemes provided by
1179      pkg/generic_advdiff
1180    o seaice:
1181      - removed all references to SEAICE_GRID.h fields from
1182        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1183        (cubed-sphere configuration will change a little)
1184      - grid computations in seaice_init are obsolete now.
1185      - cleaned up code a little so that is easier to read (hopefully).
1186      - added new (better?) discretizations of default advection and diffusion
1187        (turn on with SEAICEuseFluxForm)
1188      - replace 1 in 3d global fields by kSurface in growth.F
1189      
1190    checkpoint58a_post
1191    o seaice:
1192      - bug fix in advect.F
1193    o shelfice:
1194      - separate shelfice load anomaly from pload (breaks with time
1195        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1196        Its default is 0., but it may be computed more cleverly from (unknown)
1197        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1198        done offline. A good approximation of the pressure load anomaly is
1199        necessary to avoid large initial adjustment processes underneath
1200        deep-reaching shelfice.
1201      - small fix in ISOMIP shelfice_thermodynamics
1202      - add more sophisticated thermodynamics of Hellmer (1989), this is
1203        now the default
1204      - give a few constants more intuitive names
1205    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1206      if bulk formulae are used in long integration (especially EmPmR). Turn
1207      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1208      if balancePrintMean, the imbalance that is substracted is printed to
1209      STDOUT.
1210    o fix bug (typo) in obcs_apply_eta.F
1211    o add a new package shelfice which enables us to model the circulation
1212      underneath shelf-ice with draughts of hundreds of meters.
1213     - works
1214     - to do: + include improved thermodynamics
1215              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1216                instead of new field kTopC
1217              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1218                instead of new field R_shelfIce and new code in ini_depth.F
1219                and ini_mask_etc.F?
1220              + adjust vertical mixing schemes?
1221    o seaice pkg:
1222     - add a cpp-flag to include a simple formula for a salinity dependent
1223       freezing point of sea water at the surface
1224     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1225       meridional stresses are now different (and hopefully correct)
1226    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1227       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1228       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1229    o pkg/diagnostics: add options and parameters for regional-statistics
1230       diagnostics ; define regions by reading a region-mask from a file
1231       (might add other options later)
1232    o pkg/bulk_force:
1233     - add option and parameters to use AIM surface-flux formulae.
1234     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1235       others forcing fields (defined in PARM05, parameter file "data") are loaded
1236       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1237     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1238     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1239     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1240       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1241     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1242    
1243    checkpoint58
1244    o add "--embed-source" option to genmake2 which, when the supporting
1245      tools can be compiled (as determined by genmake2) will turn on the
1246      embed_files package which then embeds the entire MITgcm source code
1247      (*.[fFhc] + Makefile) used for the build within the executable
1248      - requested by CNH but off by default
1249      - adds a paltry <9MB to the mitgcmuv executable in most cases
1250      - only writes the output when useEMBEDSRC in eedata is true
1251    o clean up 3-dim. relaxation codes:
1252      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1253      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1254      * Thanks to Tom Haine for testing!
1255    
1256    checkpoint57z_post
1257    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1258      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1259    o fix the pickup behavior for obcs in combination with ptracers
1260    o fix a bug in ptracers_external_fields_load
1261    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1262      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1263    o transfered surface NH pressure to eta field (if exactConserv).
1264    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1265         and update lab_sea output.txt file.
1266    o completing 3-dim. relaxation code: additional term
1267         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1268      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1269      * At compile time, in "EXF_OPTIONS.h" set
1270          #define  ALLOW_CLIMTEMP_RELAXATION
1271          #define  ALLOW_CLIMSALT_RELAXATION
1272      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1273          tauThetaClimRelax3Dim = 15552000.0,
1274          tauSaltClimRelax3Dim  = 15552000.0,
1275      * 3 cases:
1276          1) Use a constant-in-time 3-dim. field
1277          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1278          3) Real-time relax. to time-evolving prescribed field
1279    o Adding Laplacian-type smoothness constraint on
1280      initial and boundary (forcing) controls (ic, bc)
1281      * enable at compile-time via
1282        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1283      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1284      * Absolute scale somewhat unclear so far
1285      * no area weighting was included since no other cost term does so far
1286    
1287    checkpoint57y_post
1288    First step for a NLFS adjoint
1289    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1290    o new init. routines for calc_r_star, calc_surf_dr
1291    o still need to deal with ini_masks_etc
1292    o testreport seemed happy
1293    checkpoint57y_pre
1294    
1295    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1296    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1297    o add new offset feature to offline pkg (plus minor cleanup)
1298    o cfc fixes for final year of integration
1299    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1300      be in GCHEM_OPTIONS).
1301    
1302    checkpoint57x_post
1303    o fix testreport Pb in multiple test experiment.
1304    o cleanup our namelist syntax in verification:
1305      - make it more F95 standards compliant (some work still needed)
1306      - allows the vast majority of our tests to work with gfortran
1307    o Non-Hydrostatic:
1308     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1309     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1310    o Allow to apply AB on T,S rather than on AB(gT,gS):
1311     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1312     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1313       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1314     - need a "clever" read_pickup to restart from the other AB formulation
1315    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1316    o remove some unused variables (reduces number of compiler warnings)
1317    o adjoint
1318      * Disable useVariableViscosity for adjoint for time being
1319        (there are a number of extensive recomputations)
1320      * Initialize certain variables needed for adjoint
1321    
1322    checkpoint57w_post
1323    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1324                 fix the singleCpuIO RS version of MDSWRITEFIELD
1325       and add a WARNING if using globalFiles=T with multi-processors.
1326    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1327      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1328    o tracer advection scheme:
1329      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1330       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1331       was not very convenient).
1332      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1333       (further tests needed for the implicit DST & Flux-Limiter schemes).
1334    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1335      and sRef for convenience, handy, when you want to initialize
1336      ptracers in a large domain with a constant non-zero value. Also,
1337      untangle ptracers_init.F a little.
1338    
1339    checkpoint57v_post
1340    o change dome exp. to use variable viscosity in side-drag terms.
1341    o remove all the files from the cfc_offline test since they are now
1342      incorporated into tutorial_cfc_offline which has been producing
1343      identical results for a few days of testing
1344    o add new parameter: sideDragFactor to enable half-slip-side BC
1345      and change side-drag S/R to use viscosity from mom_calc_visc
1346      (can switch back by setting sideDragFactor=0.); affects results at
1347      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1348       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1349    o vorticity & strain are now computed without masking, to account for
1350      no-slip-side BC in variable viscosity calculation ; mask is applied
1351      anyway later on, before computing advection/coriolis terms.
1352    o modify exp4 to test new obcs support for reading from external files
1353      and for passive tracers
1354    o fix behavior of ptracers_monitor when monitor output is written to a
1355      netcdf-file; still not independent of monitor.F (writes in the same
1356      file).
1357    o change default value of tRef (put a uniform, meaningful value for ocean
1358      & atmos) and initialize sRef (was missing, as Martin mentioned).
1359    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1360      to be proportional to enstrophy dissipation length.  Thus,
1361       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1362      This is now consistent with Smagorinsky and with the manual.
1363    
1364    checkpoint57u_post
1365    o OBCS and PTRACERS: add open boundary support for passive tracers
1366      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1367        OB-values from file; this is not different from the way theta and salinity
1368        are treated
1369      - however, Orlanski-radiation conditions are not supported, and the model
1370        will stop if you use pTracers and Orlanski at the same time.
1371      - beefed up the rountine obcs_external_fields_load: now only those open
1372        boundary values are overwritten with values from files for which there
1373        are really files, otherwise the OB-fields remain untouched. This makes
1374        it possible to use different OBs at different ends of the domain (as
1375        with EXF)
1376    o reduce number of exch calls in shap_filt (s2).
1377    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1378      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1379    
1380    checkpoint57t_post
1381    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1382    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1383      same truncation, independent of the face number: affects affects several
1384      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1385    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1386      note that biharmonic viscosity + no-slip was not tested in any experiment.
1387    o fix bug in non-linear free-surf side-drag ; generate new output for
1388      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1389    o make mnc honor the writeBinaryPrec flag for most kinds of output
1390    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1391    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1392      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1393    o add brackets in multi-terms sum to get same truncation, independent of
1394      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1395      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1396    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1397      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1398      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1399      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1400      Suggested values of viscosity parameters found in mom_calc_visc.
1401      Many new viscosity diagnostics available.
1402    
1403    checkpoint57s_post
1404    o Add clearing-house for viscosity calculations, mom_calc_visc and
1405      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1406      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1407      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1408      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1409      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1410      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1411      ViscAhStrain and viscAhTension are now retired.
1412    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1413    o In response to JMC's bug report, genmake2 now ignores any soft-links
1414      that it finds in the *current* directory when searching for files.
1415      Soft-links found in any other source directories will still work as
1416      they did before.
1417    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1418      a C routine to unlimit the stack size
1419    o mnc-ify pkg/aim snapshot vars
1420    o mnc-ify pkg/land as requested by Daniel
1421    o various changes to mnc including:
1422      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1423      - output can now be grouped so that all files within a group
1424          change the ITER portion of their names in lock-step together
1425      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1426          and works with both EXCH1 and EXCH2 (but needs more testing)
1427      - writing works for all verification test cases w/ g77 on Linux
1428    
1429    checkpoint57r_post
1430    o make MNC variable initialization happen earlier
1431    o add diagnostics for (almost) each term of the momentum Eq.
1432    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1433    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1434    o remove MINIMAL_TAVE_OUTPUT option ;
1435      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1436    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1437      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1438    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1439    o add time-dependent SST, SSS control
1440    o cost terms in ecco/ modularized (new cost_generic.F)
1441    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1442    o new infrastructure for seaice model vs. obs misfits in seaice/
1443      * driver from the_main_loop.F is seaice_cost_driver.F
1444      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1445      * gradient check in Exp. 6a of natl_box_adjoint/
1446    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1447      (see README file)
1448    
1449    checkpoint57q_post
1450    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1451    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1452      - bug was reported by Jean-Michel and Ian Fenty
1453    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1454      update exp. cpl_aim+ocn output.
1455    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1456      Needed for high-res. runs with large global files
1457      to be able to limit tapelev size
1458    o Changed some tests for adjoint:
1459      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1460      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1461      * global_ocean.90x40x15/ back to default 3-level checkpointing
1462    o Modifications to enable scripted COMMON to MODULE conversion
1463      * verification/OpenAD/code/ has necessary scripts and description;
1464      * converts, compiles and runs successfully;
1465    
1466    checkpoint57p_post
1467    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1468    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1469      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1470    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1471    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1472      (was already the case for dissipation with mom_vecinv,
1473       and also the case for grad.PhiHyd when staggered-timeStep)
1474      This will allow to put dissipation out-off the AB time-stepping.
1475     Unfortunately, affects truncation error. Update output of exp. that "fails"
1476      (cg2d matching number) and leave the others for later: front_relax(10),
1477      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1478      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1479    
1480    checkpoint57o_post
1481    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1482      (2) its ready to be documented during the 20050801 DocFest
1483    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1484      for ideal_2D_oce and lab_sea on linux_ia32_g77
1485    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1486      in global1x1_tot/code_seaice_adj to access indices 32, 33
1487      (worth another tag)
1488    
1489    checkpoint57n_post
1490    o adding precip control xx_precip 32
1491    o adding swflux control xx_swflux 33
1492    o Replacing 10 forcing penalty cost routines by 1 generic.
1493    o Implementing partitioning in time-mean and variable adjustment
1494      for atmos. state.
1495    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1496    o in natl_box_adjoint:
1497      * updated exp 1 to 10
1498        (but does not have time-mean vs. variable split results yet)
1499    o updated global1x1/*_seaice_adj/
1500      to incorporate latest changes
1501    o enable useSingleCpuIO for mdsio vector routines
1502      (applies in particular to tapelev I/O)
1503    o removed inefficient K-loop in all active_file*control*.F
1504    
1505    checkpoint57m_post
1506    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1507      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1508    o pkg/exch2: filling of face-corner halo regions is optional
1509      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1510    
1511    checkpoint57l_post
1512     tag before updating tutorials (pre-release-2)
1513    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1514       for output and interpolation of input fields onto model grid)
1515    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1516       Affects results of exp. rotating_tank ; update output.txt.
1517    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1518          and taking the square quantity and/or using a fraction-weight field.
1519    o fix aim_diagnostics_init.F mate numbers.
1520    o add mnc output capability to diagnostics/diagstat and update
1521      our cvsignore files for the ACSII output generated
1522    
1523    checkpoint57k_post
1524    o lab_sea now uses diagnostics package and provides a suite of
1525      new EXF diagnostics output.
1526    
1527    checkpoint57j_post
1528    o exf
1529      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1530        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1531        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1532      * extended diagnostics output
1533        - now includes all EXF variables
1534        - hs, hl moved to common block
1535        - separate S/R for diagnostics, called after ctrl vector is added
1536        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1537        - EXFqnet contains true Qnet (i.e. includes qsw)
1538      * updated verif. lab_sea, global_with_exf
1539      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1540        to ensure that diagnostics sees a true EXFqnet
1541    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1542    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1543      several times with different frequencies.
1544    o mnc-ify the thsice package as requested by Daniel Enderton
1545      - the monitor--MNC output needs work
1546      - many attributes need to be added (most are currently blank)
1547    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1548      - many attributes need to be added (most are currently blank)
1549    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1550    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1551    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1552      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1553         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1554    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1555     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1556    
1557    checkpoint57i_post
1558    o Diagnostics package was changed: diagnostic allocation is now deactivated
1559      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1560    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1561      add 1rst Order upwind vertical Shear.
1562    o add a quick fix for A/B checkpointing in OFFLINE mode
1563    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1564      end-run around the C/Fortran linking horror in eesup/src/timers.F
1565    o added pkg/runclock: allows user to terminate run based on wall clock
1566    o added non-hydrostatic scaling parameter: nh_am2
1567    o pkg/my82: futile attempt to make results compiler-independent by adding
1568      some "_d 0", etc. no effect.
1569    o for mnc output, fill the 'T' coordinate var with myTime and create a
1570      separate 'iter' variable for iteration count
1571    o pkg/diagnostics:
1572      add new capability: output of Global/Regional & per-level statistics ;
1573      tested against monitor output (including land & thSIce) on various exp.
1574    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1575    
1576    checkpoint57h_done
1577      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1578      data.diagnostics, data.gchem, data.ptracers) is done.
1579    
1580    o pkg/diagnostics: prepare for Global/Regional statistics.
1581      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1582    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1583      and rename it: DIFFERENT_MULTIPLE
1584    
1585    checkpoint57h_post
1586    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1587    o pkg/diagnostics: change output frequency, now in seconds (instead
1588      of Nb of iterations). This requires to change data.diagnostics.
1589    checkpoint57h_pre
1590    
1591    o in mnc, let the user create the output dir if both mnc_outdir_date
1592      and mnc_outdir_num are false
1593    o add fflags() to pkg/diagnostics which allows one to specify, on a
1594      per-file basis, the file precision [default behavior is unchanged]
1595    o added diagnostics to pkg/kpp, including computation of mixed layer
1596      depth based on a temperature/density criterion
1597    o updated verification/natl_box to test the new pkg/kpp diagnostics
1598    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1599    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1600    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1601      not mnc -- this mistake was found by JMC and is now corrected
1602    
1603    checkpoint57g_post
1604    o add Adams-Bashforth 3rd Order time stepping:
1605      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1606      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1607    checkpoint57g_pre
1608    
1609    o make lambda[Theta,Salt]ClimRelax spatially varying
1610      (default remains spatially uniform constant based on tau)
1611    o added new control variables
1612      * init. uVel, vVel, etanN
1613      * lambda[Theta,Salt]ClimRelax
1614    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1615      (suggested by G. Forget)
1616    
1617    checkpoint57f_post
1618    o add parameter "baseTime" = model base time = time at iteration zero
1619      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1620      account for baseTime shift
1621    o move Coriolis arrays from PARAMS.h to GRID.h
1622    checkpoint57f_pre
1623    
1624    o mnc-ifying the seaice package
1625    o introduced an alternative length scale calculation for use in the limiting
1626      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1627    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1628    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1629      as well as grad(vort3).  Made it compatible with both approximate form
1630      for the cubed sphere and full form of these gradients.  Added flag
1631      useFullLeith to select between approximate and full form.  
1632    o add "d0" in getcon.F to reduce differences between compilers/platforms
1633      update output.txt of exp. fizhi-gridalt-hs
1634    o change port_rand funtion to allow to set the seed.
1635    o fix obscure MNC bug involving conversion between reals and integers
1636      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1637        new version is now more standards-compliant
1638    o adjoint-related modifications
1639      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1640      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1641      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1642    
1643    checkpoint57e_post
1644    o Adding eddy stress controls a la Ferreira et al.
1645    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1646    
1647    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1648      update output.txt of exp. fizhi-gridalt-hs
1649    o add more "Z" dimensions and associated coordinate vars to MNC
1650    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1651    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1652      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1653      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1654      months and years.  Requires pkg/cal.
1655    o diagnostics: add pickup functionality
1656      - off by default for backwards compatibility
1657      - current version only uses MDSIO -- MNC will be added
1658    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1659    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1660    
1661    checkpoint57d_post
1662    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1663    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1664      output from the diagnostics package
1665    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1666    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1667      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1668    o add coordinate variables to the MNC output from the diagnostics package
1669    o change MNC-flags default value: true when useMNC=TRUE
1670    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1671      the ability (off by default) to read the grid information using MNC
1672    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1673    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1674    o do snap-shot diagnostics at the middle of the time-interval (instead of
1675      at the end).
1676    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1677      new test for AIM with thSIce + slab-ocean
1678    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1679    o move state variable diagnostics to the beginning of the time step ;
1680      (note: still needs some work specially for snap-shot diagnostics)
1681      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1682    
1683    checkpoint57c_post
1684    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1685    o generate new output.txt files on faulks with g77 & the new -ieee option
1686    checkpoint57c_pre
1687    
1688    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1689      update output.txt of exp. global_ocean.90x40x15
1690    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1691      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1692    o add saltFlux(+File) forcing capability with periodicExternalForcing
1693    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1694    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1695    o improvements for the MNC output from DIAGNOSTICS:
1696      - correct handling of the unlimitied dimension
1697      - all dims now have associated coordinate variables
1698      - variables located at U, V, and Corner ("Z") points are now written
1699        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1700        *all* data points are output
1701    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1702    o added pkg/seaice/seaice_monitor.F
1703    o mdsio_readfield.F can now read files visible only to master MPI process.
1704    o pkg/seaice: some test code for ice-modified ocean stress
1705    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1706      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1707      spurious negative numbers for precipitation and humidity.  Will cause
1708      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1709    o pkg/ctrl/
1710      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1711        May be enabled via doPackDiag
1712      *  introduce z-scaling of
1713         + gradient (doZscalePack) and
1714         + control (doZscaleUnpack)
1715    o pkg/mdsio/
1716      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1717      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1718    
1719    checkpoint57b_post
1720    o simplify options in diagnostics_fill arguments (remove weird combinations)
1721    o fix MNC coordinate variables so that they now contain per-face index
1722      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1723      general, EXCH2 grids are only aligned to a "local" coordinate system
1724    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1725    o Implement instantaneous output within pkg diagnostics:
1726      setting a negative frequency in data.diagnostics produces
1727     "snap-shot" output (as opposed to time-average if freq > 0)
1728    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1729      NOTE: change ptracer diagnostics name: use 2 characters to work with
1730            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1731    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1732      becomes the coordinate variable for the 'T' dimension
1733    o add CF-style coordinate variables to MNC
1734      - just a first cut:  numbers are meaningless on the cubesphere and
1735        missing along the T axis but otherwise it works!
1736    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1737    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1738    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1739      this is based directly on what the model compute, so that the content of
1740      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1741    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1742    o clean up build options files for SunOS, in particular
1743      - remove -traditional from xmakedepend
1744      - change -xarch=v9 to -xarch=native for f77
1745      - restore use of make (not gmake)
1746      - add CC=gcc if using g77
1747    o changes per discussion of AM, JMC, & EH3 today:
1748      - move redundant "grid" variables out of "state" -- in preparation of
1749        creating proper CF-style coordinate variables and in recognition
1750        that any/all grid variables can be easily copied (eg. w/NCO) from
1751        the grid files into any of the other NetCDF files
1752      - *always* output grid variables with MDSIO (this will eventually be
1753        changed)
1754      - output MNC grid file if useMNC is true
1755    o every instance of _END_MASTER() has been found and replaced with
1756      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1757      preprocessors
1758    o re-arrange diagnostics pkg initialisation:
1759     - allow each package to extend the available diagnostics list
1760     - add some checking and fix small problems (multi-threaded, ...)
1761     - new S/R diagnostics_fill (replace fill_diagnostics):
1762       look through the short list of active diag. (instead of the long list)
1763       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1764    
1765    checkpoint57a_post
1766    o this set of changes restores TAMC compatibility
1767      tested for global_ocean.90x40x15 adjoint on trough
1768      (what a pain)
1769    
1770    checkpoint57a_pre
1771    o some modifs in tools/build_options for sunos
1772    o call ctrl_pack for ctrl at end for optimcycle=0
1773    
1774    checkpoint57
1775    o add horizontal bi-harmonic viscosity for vertical velocity
1776      - new parameter viscA4W (defaults to viscA4)
1777      - affects only non-hydrostatic code
1778      - to be done: no-slip lateral boundary conditions
1779    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1780    o implement Implicit Vertical advection for pTracers
1781    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1782      (implemented also for implicit vertical diffusion & advection)
1783    o OBCS: extend application of tracer open boundary conditions
1784      to a strip beyond the boundary of width Olx/Oly
1785    o add call monitor to TAF set of required calls (flow directives)
1786      and include in natl_box_adjoint
1787    o untangle a few ifdefs related to cost, ctrl, autodiff
1788      untangel a few ALLOW_ECCO_OPTIMIZATION
1789    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1790      (theta2, salt2 in ecco_cost_weights)
1791    
1792    checkpoint56c_post
1793    o OBCS as control variables
1794      - update ctrl_ad_diff.list, obcs_ad_diff.list
1795      - remove balance of obcs controls from default
1796      - fix index bug nobcs in ctrl_init
1797      - fix dummy fields filen in ctrl_pack
1798      - add dummy weights for obcs
1799    o lsopt: comment out fort.94 output
1800    o optim:
1801      - remove unnecessary header files
1802      - adjusted namelists
1803      - add xerbla.F to Makefile
1804    o exf:
1805      - multiple modifications of exf_check_range
1806      - unit change in exf_init_runoff from [m/year] to [m/s]
1807    o mdsio:
1808      - i/o-vector change debugLevel from debLevA to debLevB
1809    
1810    checkpoint56b_post
1811    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1812      is called from DO_THE_MODEL_IO
1813      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1814      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1815      - clean up PTRACERS_WRITE_TIMEAVE a little
1816    o add another verification experiment that tests both the cfc-pkg and
1817      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1818      reactive tendencies treated inline with regular timestepping
1819    o testreport previously did a lousy job of comparing small numbers, so
1820      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1821      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1822      testreport.
1823    o ptracers_monitor: bug fix for MPI
1824    
1825    checkpoint56a_post
1826    o GCHEM: finish reorganizating the package
1827      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1828        (introduces another 3D-array for each passive tracer, but only if
1829        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1830        gchemTendency is not needed because the timestep is done separately)
1831      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1832      - GCHEM is now---more or less cleanly---separate from PTRACERS
1833      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1834        so clear to me how that should be done in a general way.
1835    o CFC: improve formatting of output in CFC_ATMOS
1836    o PTRACERS:
1837      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1838        that ALL experiments with ptracers enable can be checked. This makes
1839        GCHEM_MONITOR obsolete.
1840      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1841        monitorFreq
1842      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1843    o add PTRACERS (PTR0[1-5]) to testreport output
1844    o exf_check_range:
1845      * default changed to .TRUE.
1846      * will check values for niter0 if debLevA, every timestep if debLevB
1847      * STOP in exf_check_range if 'out of range'
1848      * range chosen generous to allow for potential extema
1849      TBD: a version with stricter range
1850           permitted range would be runtime parameters
1851  o GMredi:  o GMredi:
1852    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1853    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 1856  o GCHEM:
1856    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
1857      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1858    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1859      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1860        this flag is now only visible within GCHEM-pkg routines.
1861      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1862        be replaced by a 3D array that is computed before thermodynamics; for
1863        this, the tracer ID iTracer had to be included into the parameter list
1864        of ptracers_forcing
1865      - set up forward_step to call gchem_forcing, that will replace
1866        gchem_forcing_int in ptracers_forcing
1867      - cleaning up
1868  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
1869    
1870  checkpoint56  checkpoint56

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