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revision 1.757 by mlosch, Wed Dec 20 12:27:02 2006 UTC revision 1.987 by jmc, Tue May 6 19:02:20 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint59q
8    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
9       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
10    o Refresh tutorial_global_oce_biogeo, notably:
11      - change bathymetry (put back seamounts in ACC, use hFacs)
12      - change EOS (POLY3 --> JMD95Z)
13      - use Bryan-Lewis vertical diffusivity
14      - use multidimensional advection
15      - remove old virtual virtual in dic pkg, now done through ptracer pkg
16      - change a couple of parameters in dic pkg
17    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
18    o pkg/obcs: change default to OBCSfixTopo = .true.,
19      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
20      - replace "debugMode" with "debugLevel .GE. debLevB"
21    o implementation of TAF directives for gchem,cfc,dic
22    o remove "exp5" (replaced by tutorial_deep_convection).
23    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
24      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
25      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
26      --> changes results in exp4, seaice_obcs
27    o tutorial_deep_convection :
28      update the set-up and increase resolution and domain size ; start
29      from pseudo initial conditions = output at t=120mn in order to see
30      something happening when running testreport.
31    o pkg/seaice: add os7mp as an advection scheme
32                  add check for advection schemes
33                  add a flag for restoring T and S underneath sea ice
34    o pkg/my82: add netcdf-support and diagnostics
35    o thsice pkg:
36      - Now hsMax limits snow height by turning it into ice following
37        flooding scheme (and now conserving energy)
38      - Slight rewriting of the formula in thsice_calc_thick.F
39      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
40      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
41    
42    checkpoint59p
43    o gchem / dic / cfc :
44      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
45      - add new parameter files: "data.dic" & "data.cfc" ;
46      - various re-arrangement in initialisation & header file ;
47      - fix tutorial_global_oce_biogeo for multi-threaded test.
48    o pkg/dic: test for "pickup_dic" file when restarting ;
49      if no pickup-file, can restart with a re-initialised pH (same as it did
50      before) providing pickupStrictlyMatch is set to False.
51    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
52      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
53    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
54      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
55    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
56     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
57       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
58    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
59       scheme to use for vorticty-term ;
60     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
61       (with default selectVortScheme, return to original discretisation)
62     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
63    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
64    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
65      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
66      also fix diagnostics VISCAHW & VISCA4W.
67    
68    checkpoint59o
69    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
70    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
71      move a few statemens out the main loop into separate loops
72    o pkg/shelfice:
73      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
74        (kg/m^2/s), does not break tests, because in verification/isomip,
75        rhoConstFresh=rhoConst (by accident)
76      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
77      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
78        new file model/src/seawater.F, so that they are available for all pkgs.
79      - convert potential temperature into in-situ temperature. This changes the
80        isomip tests => update tests
81    o add a flag writePickupAtEnd (default=true) to be able to suppress
82      writing a pickup at the last timestep
83    o tools/mpack-1.6 :
84      - disable automake (not working) and autoconf (not needed).
85      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
86        also cleaner with much less compilation warnings.
87    o pkg/profiles:
88      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
89      (for "less than 32 characters name" compiler requirement)
90    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
91      conditions that have a different sampling frequency than S/T/U/V obcs
92    o pkg/diagnostics (stats-diags):
93      - fix global Min/Max in case 1 processor get only empty tiles
94    o genmake2: replace (4 times)
95         make genmake_tc_1.o >> genmake_warnings 2>&1
96      with
97         COMM="$CC $CFLAGS -c genmake_tc_1.c"
98         echo $COMM >> genmake_warnings
99         $COMM >> genmake_warnings 2>&1
100      to make genmake2 always see the value of CC as specified in the optfile.
101    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
102      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
103      - modify verification advect_cs test to test SOM-advection on CS-grid.
104    o pkg/ctrl:
105      - Rewrite of ctrl_map_ini_ecco.F,
106        introducing a generic routine (ctrl_map_ini_gen.F).
107      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
108    
109    checkpoint59n
110    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
111      number in dedicate array "hdiag":
112      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
113        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
114      - many small changes (integer format) for large number of diagnostics
115      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
116        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
117    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
118      usingSphericalGrid, this allows to define the rotated grid coordinates
119      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
120      geographical coordinates according to the inverse of the rotation defined
121      by the Euler angles, so that Coriolis parameter and online-interpolation by
122      exf works with the geographical coordinates on XC/YC/XG/YG.
123      Naturally, this feature does not work with all packages, so some
124      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
125      profiles), because there the coordinates are assumed to be regular
126      spherical grid coordinates.
127    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
128      - introduce isopycnal diffusion coefficient control.
129    o tools/adjoint_options:
130      - additional control vector components.
131    o pkg/mnc: have mnc create marginally meaning full coordinate variables
132      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
133    o pkg/mypackage:
134      - add example of read/write pickup for state-var ;
135      - add entry points to the main code for state-vars diags & write-pickup.
136    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
137      transitions for useExfYearlyFields
138      - add new subroutine that determines the file to read from for
139        use*YearlyFields = .TRUE. and .FALSE.
140      - add a verification experiment to global_with_exf that tests
141        useExfYearlyFields with USE_EXF_INTERPOLATION defined
142    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
143      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
144      subroutines (which could be generated from a template, because they are
145      almost identical), for now they are included in obcs_prescribe_read.F for
146      simplicity
147    o pkg/exf:
148      - add a little more diagnostic to exf_interp_read (in analogy to
149        mds_read_field, can be turned off with debugLevel < debugLevA=1)
150      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
151        ugly but fast by unrolling short inner loops, inserting a unroll=8
152        directive in routine lagran, and splitting a loop and making do while the
153        outermost loop (the latter requires the intoduction of index arrays)
154    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
155    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
156      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
157    o verification/seaice_obcs: updated for restart test and latest options
158    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
159      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
160      for now this is only available for the C-grid code and also within
161      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
162    
163    checkpoint59m
164    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
165      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
166    o gad_som : fix flux output (& diagnostics) to have same units as other  
167      advection scheme fluxes (was previously multiplied by deltaT).  
168    o added verification/seaice_obcs both to test seaice open boundaries
169      and to provide an example matlab scrpt for generating them
170    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
171    o pkg/salt_plume: clean up salt_plume_frac.F to
172      remove redundancy in PlumeMethod 1 and 4
173    o pkg/kpp: added saltplume diagnostics
174    o pkg/obcs and pkg/seaice:
175      - do not set uice and vice to zero when OB*icefile are unspecified
176      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
177      - moved seaice tracer obcs after call to seaice_growth
178    o pkg/salt_plume: added various options for salt plume depth
179      criterion and for vertical distribution of the salt
180    
181    checkpoint59l
182    o pkg/ptracers: new version of ptracers pickup:
183      read meta file and write only fields which are needed to restart.
184      ( same logic as main pickup file ; also using pickupStrictlyMatch )
185    o pkg/seaice:
186      - add timescale for melting due to warm mixed layer as a means of
187        setting SEAICE_availHeatFrac more conveniently
188      - add a CPP-flag/runtime parameter check for flooding algorithm
189      - reformulated availHeat in seaice_growth.F to be independent of AREA
190    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
191      unit changes
192    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
193    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
194      SX vector computer.
195    o pkg/seaice:
196      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
197        seaice forcing fields can now be read only through pkg/exf
198      - removed some unused halos
199    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
200    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
201      or U/VICE from U/VWIND before computing U/VSTRESS
202    
203    checkpoint59k
204    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
205      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
206    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
207      all experiments pass when compile with un-initialised var. checking option.
208    o added pkg/salt_plume
209    o script to test restart (for now, in MITgcm_contrib/jmc_script)
210    o pkg/seaice: new read/write pickup version.
211      read meta file and write only fields which are needed to restart.
212      ( same logic as main pickup file ; also using pickupStrictlyMatch )
213    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
214    o lab_sea.hb87: modify the domain & update output.hb87.txt :
215      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
216      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
217      process. Fixed here by closing the domain at the Northern boundary.
218    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
219    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
220      a set of consecutive levels in/from a 3-D array.
221    o pkg/ptracers:
222      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
223      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
224    
225    checkpoint59j
226    o in pkgs: dic, obcs, offline, rbcs:
227      standard way to compute coeff. for time interpolation between 2 time reccords
228      which retains full precision (& make results less dependent on compiler).
229      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
230    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
231      packages instead of reading ice cover and wind speed separately
232    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
233     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
234      to allow to compile customized code before the update)
235    o cleaning-up:
236      - fix CPP instruction syntax in pkg/obcs
237      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
238        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
239      - fix some threads issue in IO parts.
240    o pkg/dic:
241      - add tons of "_d 0" (--> much better testreports !)
242       and then update outputs of tutorial_global_oce_biogeo
243    o pkg/mom_fluxform:
244      add a special version of momentum advection intended to conserve momentum
245      next to a bathymetry step or a coastline edge. (default = off = #undef)
246    o new read/write pickup version:
247      - for now, only implemented for main (mdsio) pickup file.
248      - write out only what is needed to restart; merge pickup_nh , pickup_ph
249        and main pickup together.
250      - read meta file; read only what is needed to restart; stop if a field
251        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
252        if it make sense (even if the restart is not perfect).
253      - if no meta file, assume that pickup to read corresponds exactly to
254        a pickup that would currently be written.
255      - read pickup written in the old format (until checkpoint59i) if it
256        recognizes an old meta file (no field-list).
257      - add a meta file in exp. which starts from a pickup: 2 cases:
258        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
259         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
260        b) a meta file describing the content of the associated pickup file
261         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
262    o pkg/mdsio & pkg/rw:
263      - new routine to read a meta file ; new set of routine to read
264        Multiple-fields file (with meta file).
265    o added open boundary conditions capability for seaice
266        HSNOW, HSALT, UICE, and VICE
267    
268    checkpoint59i
269    o adjoint:
270      * fix multiDimAdvection adjoint
271        (partial recomputation problem by TAF for fVerT(:,:,kDown)
272        and comlev1 size definition (maxpass vs. max. number of tracers)
273      * verification/global_ocean.90x45x15 adjoint now tests
274        NLFS and multiDimAdvection using DST3 (=30)
275      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
276    o pkg/kpp: add "_d 0" to real constant (if missing);
277      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
278      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
279    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
280      for internal parameters related to restart process (formerly from PARAMS.h)
281      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
282    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
283      as argument. (only atm2d & obcs write_pickup have not yet been updated)
284    o pkg/monitor:
285      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
286      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
287      - account for deep Atmosphere factor and density factor (anelastic)
288    o added open boundary conditions capability for seaice HEFF and AREA
289    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
290      thermodynamics
291      - requires a little reorganization, which affects the testreport results
292        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
293        so that now the conservative form is tested
294      - add a few comments
295    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
296    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
297    o add new diagnostics to seaice: advective, diffusive fluxes (only for
298      multidim-advection, for scheme 2 they are not filled) and transports,
299      thermodynamic growth rates
300    o change units of EmPmR (inside the code, + within coupling interface)
301      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
302      Affects results @ truncation level (cg2d match) and update output of
303       experiments: lab_sea(6), global_ocean.90x40x15(10),
304      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
305      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
306      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
307      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
308    
309    checkpoint59h
310    o pkg/exf:
311      - improve vectorization by moving if-statement out of loops in
312        exf_mapfields, exf_radiation
313      - exf_bulkformulae.F: introduce 2D fields and vectorize code
314    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
315    o testreport:
316      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
317        monitor & update offline_exf_seaice exp. output.
318      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
319    o pkg/seaice:
320      - bug fix in the evp solver: boundary conditions were affected be
321        masking of zMax/zMin (changes results)
322      - minor bug fix in boundary conditions in seaice_calc_strainrates
323        (changes results for no_slip)
324      - seaice_lsr.F: make interpolation of eta dependent on boundaries
325      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
326      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
327        stress formulation and no-slip boundary conditions
328    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
329      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
330    o pkg/seaice: a first HSALT time stepping equation has been checked in
331    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
332      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
333      without requiring DO-IF statements
334    o pkg/thsice:
335      use continuous power-law function for partition of energy between lateral
336      melting/freezing and thinning/thickening ; old code using step function
337      still available with #undef THSICE_FRACEN_POWERLAW
338      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
339    o testreport: change AD testing : check against results/output_adm.txt
340      using same scripts as for forward test.
341    
342    checkpoint59g
343    o adjoint testing: in preparation for changing testreport:
344      - output format: cost and grad written on separated lines
345      - ad output results in directory "results" (instead of "results_ad")
346    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
347    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
348    o pkg/ecco: allow user defined cost function contributions
349    o testreport:
350      Allow to choose (per experiment) the list of tested output variables
351       and the main variable (used to issue a pass/FAIL ) ;
352      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
353      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
354      Also modify printing of summary:
355       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
356       b) echo the list of tested variables in the individual summary.txt of
357          each experiment.
358    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
359      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
360      (but still depend on the tile decompostion of the domain).
361    o pkg/seaice: change a discretization detail to make the B-grid code
362      "more symmetric". This change is likely to remove all "ridges/leads" that
363      where quasi-aligned with the grid in B-grid solutions. It may also be
364      the solution to the stress coupling issues with the B-grid.
365    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
366      remove .cvsignore from input dir. (since testreport no longer run here).
367    o pkg/thsice:
368     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
369     - fix reshaping of sea-ice just after advection:
370       melt all the ice only if ice-volume is too small.
371     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
372       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
373     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
374    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
375      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
376    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
377      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
378      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
379      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
380      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
381      -> update output.txt
382    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
383     this affects truncation error: -> update output.txt of exp:
384      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
385      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
386    
387    checkpoint59f
388    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
389    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
390      a bounded range (in forward mode)
391    o pkg/ecco, ctrl, autodiff and mom_common:
392     internal parameter controls, completements of implementations
393    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
394    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
395      (not seem any difference in testing results).
396    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
397       at face corners.
398    o pkg/generic_advdiff:
399     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
400      loop range indices for computing vertical advection tendency
401      and do the calculation in the interior only (no overlap) ;
402      for now, only implemented for SOM advection (to save CPU time).
403     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
404    o exch2 adjoint
405      First set of changes:
406      - add exch2 hand-written adjoint templates
407      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
408        This will require cleanup in pkg/autodiff/*.F
409        (changed routines currently kept separate in verif. code/)
410      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
411        that used to hide exch2 or cubed-sphere specific code
412        (commented via 'cph-exch2')
413    o pkg/seaice
414      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
415    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
416       output of global_ocean.cs32x15.thsice .
417    
418    checkpoint59e
419    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
420      for B-grid vector (not yet tested) and C-grid vector (<- only used
421      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
422    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
423      (#ifdef ALLOW_SALT_PLUME)
424    o gather_2d/scatter_2d: removed halo regions
425    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
426      scheme and the corresponding test case (under front_relax dir). For now,
427      only available with Skew-flux form and not yet tested in realistic set-up.
428      adjoint: store directives updated, but gradient checks deteriorated,
429      so maybe GM/Redi adjoint is now broken.
430    o seaice adjoint
431      * add AREA, HEFF, HSNOW as control variable
432        (should not change lab_sea results)
433      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
434    o pkg/seaice:
435      * added computation of saltFlux in seaice_growth;
436        For time being, sea ice salinity is assumed constant
437        contribution of snow flooding to freshening of sea ice is neglected.
438        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
439        defaults to 0.0 in order to maintain backward compatibility.
440        Typical values for SEAICE_salinity are 4 to 10 g/kg.
441      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
442      * added SEAICE_availHeatFrac, which specifies fraction of surface level
443        heat content used to melt or grow ice
444      * commented out cap of HICE: it helps keep ice thinner
445      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
446      * applied OBCS T/S mask to HEFFM sea ice mask
447    
448    checkpoint59d
449    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
450     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
451     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
452    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
453     and change default value of parameter "GM_Small_Number";
454     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
455       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
456       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
457    o pkg/ecco: cost function when applying pkg/smooth to controls
458    o pkg/ctrl: add forcingPrecond run time parameter
459    o pkg/seaice:
460     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
461     - fix bug in metric terms of u-equation in LSR solver (implicit part),
462       changes verification/lab_sea
463     - rearrange implicit part of u-equation in LSR solver to make it easier to
464       read, understand, and debug. This causes changes at the truncation level.
465     - fix (serious) bug in the boundary conditions (sign error in the implicit
466       part) of the LSR solver. Changes all LSR results.
467     - fixed problem with HSNOW initialization to avoid thick snow when AREA
468       is initilized with small values - does not change lab_sea results.
469     - added HsnowFile initialization capability
470    o pkg/smooth: addition to model/src and pkg/ctrl so allow
471     initialization of pkg/smooth and application to control vector
472    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
473    o dependencies: pkg/profiles requires pkg/cal
474    o pkg/profiles:
475     - added option ALLOW_PROFILES_GENERICGRID
476         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
477         that interpolation information (grid points and coefficients) is provided
478         within the netcdf input files.
479         -> sample matlab scripts can be found in MITgcm_contrib/gael
480         that allow you to prepare netcdf input files.
481     - also modified: cleaner include statements, cleaner error print statements,
482       cleaner stops when error, and more tests of the netcdf input files consistency.
483    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
484    o pkg/seaice:
485     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
486       requires a new routine: seaice_diagnostics_fill.F
487     - make sure that seaice does not move if not forced (pressure replacement
488       method, Hibler and Ip, 1995), changes results
489     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
490     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
491       It is turned off by default (=-1.), because it changes the results.
492     - make it possible to read AREA from a file, too.
493    
494    checkpoint59c
495    o add S/R and diagnostics for oceanic mixed-layer depth
496    o move GMRedi call after all vertical mixing schemes (including KPP)
497    o pkg/thsice:
498     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
499      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
500    o pkg/obcs:
501     - bug fix for balance code
502    o pkg/seaice:
503      - allow values of SEAICE_elasticParm > 1
504      - add new parameter SEAICE_evpTauRelax as an alternative
505        to SEAICE_elasticParm
506      - make lsr boundary conditions free slip (by default), changes result
507      - add code for no slip boundary conditions for lsr
508      - set minimum of zeta to zero (and not 4e8) (changes results)
509      - add a cap on AREA after advecting AREA if seaice_growth is not called
510    o change calculation of Visbeck K:
511      - no longer depend on tapering scheme; instead, compute slope (limited
512        by GM_maxSlope). this is equivalent to what was comuted before with
513        clipping or linear tappering.
514      - fix vertical averaging (wrong by 1/2 level)
515      - leave the old version (but will not be maintained) within
516        #ifdef OLD_VISBECK_CALC / #endif
517      - update output of exp. ideal_2D_oce
518    o change error catch in calc_r_star to improve vectorization
519    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
520      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
521    o adjoint:
522      Re-organized adjoint checkpointing according to Matt Mazloff
523      (but with modifs/completions/cleanups)
524      Storing is now bundled into large arrays to optimized I/O
525      (and second step in cleanup of the_main_loop)
526    
527    checkpoint59b
528    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
529      - export/import (between ocean & coupler) fields needed for ocean DIC.
530    o pkg/seaice:
531      - get rid of three more exchanges seaice_calc_viscosities (required
532        different loop boundaries in seaice_lsr and seaice_ocean_stress)
533      - bug fix in seaice_ocean_stress (update of lab_sea required)
534      - reduce loop boundaries to necessary minimum also in seaice_evp
535      - go back to the old way of computing deltaC/Z as the adjoint likes that
536        better
537    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
538      passive tracer to an Age Tracer) + update output.txt
539    o pkg/exf:
540      - implement A-grid / C-grid selection for wind-stress input files.
541      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
542      for now, in exf_bulk_largeyeager04.F only :
543      - change implementation for case where windspeed + 2. components wind-stress
544        are read-in. AND use rhoConstFresh to convert evap.
545    o pkg/seaice:
546      - use correct EXCH_UV for wind-forcing (on A-grid).
547      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
548        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
549    o pkg/exf:
550      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
551      EXF_INTERPOLATION:
552      - merge global_with_exf/code version of exf_interp_read.F
553        to the main code ;
554      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
555        reading the file ; Important: This options needs to be defined to recover
556        previous code.
557        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
558      - no longer loose real*8 precision along the way when using exf_iprec=64.
559    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
560      - change discretisation of evp-solver in order to avoid another exchange
561        (changes lab_sea) and clean up a little
562      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
563        help the adjoint (this also changes the results slightly)
564      - add a few "_d 0" where they had been missing in seaice_evp.F
565      - cleaning up: remove unused seaice_calc_rhs.F
566    o pkg/exf: some cleaning-up:
567      - change various "constants" into runtime parameters
568      - cleaned-up Large&Yeager04 routine which should eventually
569        replace exf_bulkformulae.F (changed names of S/R and CPP)
570        and merged various ALLOW_ATM_WIND options
571     only used with thsice pkg (in thsice_get_exf.F):
572      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
573        which are used when useStabilityFct_overIce=TRUE (= the default)
574      - change default values of ice & snow emissivity and scale downward LW
575        by ice & snow emissivity.
576    o pkg/thsice:
577     fix few little problems, in thsice_calc_thickn.F:
578      - growth vertically (and not laterally) if iceFrac == iceMaskMax
579      - melt only laterally if hIce < hThinIce (as the comments say)
580      and in thsice_extend.F:
581      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
582      - start to form ice as soon as the minimum ice-volume is reachable.
583     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
584      and cpl_aim+ocn
585    o pkg/kpp
586     - move computation of surface related input fields to KPP into a new
587       subroutine kpp_forcing_surf.F
588     - remove wrong (within bi,bj loops) EXCH calls.
589     - little cleaning (add argument myThid in last position, cvs header ...)
590     - for now, fix conservation problem by exchanging KPPviscAz (may not
591       be the best fix)
592    o pkg/seaice
593     - check for inconsistent evp parameter/cpp-flag combination
594     - remove leftover errIO flat for obsolete name list error handling
595    o OpenAD
596     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
597    
598    checkpoint59a
599    o pkg/seaice: some parameter clarifications and a little bit of clean up
600    o pkg/thsice: rename run-time parameters:
601       himin       -> hIceMin
602       himin0      -> hThinIce
603       hihig       -> hThickIce
604       i0          -> i0swFrac
605       transCoef   -> bMeltCoef
606       frac_energy -> fracMelting
607      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
608       with default values (for now) that do not change the results.
609      remove old version of thsice vars advection in pkg/seaice.
610    o in FFIELDS.h:
611      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
612      - make pLoad & sIceLoad always available (but still only used if
613         ATMOSPHERIC_LOADING is #define).
614    o pkg/kpp: replaced _KPP_RL with _RL
615    o bug fixes for vertical diffusivity computations when both KPP and
616        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
617        are no longer updating the vertical diffusivity array
618        (passed as argument) but are (re-) setting those arrays.
619    o pkg/seaice: fix bug in evp solver, while doing that
620      - change (improve?) discretization of stress computations for both
621        cgrid-lsr and evp solver
622      - add a new routine to compute strain rates
623      - the above changes lab_sea results
624      - add no slip conditions for evp solver (off by default), lsr-version
625        may follow
626      - fix exchange for shear at Z-points (does not change lab_sea)
627      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
628        (to force the user to pick a time step since there is not "safe" way
629        of choosing it)
630      - add principal stress diagnostics
631      - rearrange fields for evp a little to avoid having to call a: too many
632        exchanges and b: exchanges for stress trensor components which we do
633        not have.
634      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
635        of evp, complete rewrite for lsr case (latter is does not yet work
636        in all cases)
637    o pkg/kpp: add code to have mixing in shelf ice caverns
638      - add myThid to all kpp routines (long overdue)
639    
640    checkpoint59
641    o pkg/exf:
642      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
643        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
644      - move exf header files from lower_case.h to UPPER_CASE.h ;
645        add missing cvs Header & Name
646      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
647      - add namelist param. selectStressGridPosition, exf_monFreq
648      - retire many _CLIM routines, and remove data.exf_clim
649        + params moved to data.exf
650        + climsst, climsss now handled by exf_set_gen, i.e.
651          climss?period=0 refers to constant field,
652          climss?period=-12 to monthly forcing
653      - split up namelists in data.exf
654    o pkg/seaice:
655      - remove seaice_exch and seaice_exch_uv
656      - remove superfluous exchange of theta
657      - add myThid to seaice_budget_ocean/ice
658      - add new interface for atmospheric wind forcing (C-grid only)
659        + new routine
660        + two new field (taux, tauy for stress over ice)
661        + removed one global field (DAIRN) for C-grid case only
662    o pkg/thsise
663      - 2nd set of modifs for thsice adjoint in conjunction with exf
664    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
665    
666    checkpoint58y_post
667    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
668      vertical diffusivity, similar to that in MOM4; turned on using
669      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
670      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
671    o Added capability for 3D specification of background vertical diffusion
672      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
673      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
674      "data" file that contains the 3D vertical diffusivity coefficients.
675    o ice dynamics (pkg/seaice) with thsice thermodynamics:
676      - add code within pkg thsice to advect & diffuse sea-ice fields
677      similar to (and will replace) what has been added in  seaice_advdiff.F,
678      but: - conserving Mass, Heat & Salt.
679           - better when using non-linear advection scheme (not yet fully tested)
680           - can also be used in atmospheric set-up (for now, only the diffusion).
681    
682    checkpoint58x_post
683    o IO option for global-file compact format:
684      - add options when generating topology (utils/exch2/matlab-topology-generator)
685      - add I/O capability (pkg/mdsio).
686      - adapt utils/matlab/rdmds.m to read this format.
687      for now long-line format not yet supported by pkg/mdsio (& exch2).
688    o shelfice: add a few diagnostics
689    
690    checkpoint58w_post
691    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
692      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
693      (and replace horiVertRatio in NH code).
694      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
695                         and tutorial_plume_on_slope (sensitive to truncation)
696    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
697      directly to drive seaice model (C-grid only)
698    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
699     - reintroduce computation of wind from stress,
700     - compute tau (in exf_bulkformulae.F) from windstress averaged to
701       mass points to avoid tau = 0
702     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
703    o rdmnc.m: make it work with "global" files created with gluemnc
704    o rdmnc.m : some improvements in dealing with singleton dimension
705      (tested on all testreport mnc output files).
706    o genmake2: disable pkg/profiles if netcdf test fails.
707    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
708    o move call to cal_readparms up to make calendar parameters/variable available
709      to all packages
710    
711    checkpoint58v_post
712    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
713      useDynP_inEos_Zc tested.
714    o pkg/exf: changes to properly interpolate/mask/scale initial fields
715    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
716      and portions thereof.  See read_cs.txt for description and examples.
717    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
718      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
719      following the great-circle arc between those 2 points.
720    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
721      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
722    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
723     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
724     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
725     - still needs work (not working with some options ; efficiency to improve)
726       and serious testing.
727     - use this scheme for temperature & salinity in 2 advection test exp.:
728       advect_xy & advect_xz, respectively.
729    
730    checkpoint58u_post
731    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
732    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
733    o testreport: add option "-skipdir" to skip some test.
734    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
735      momentum calculation.
736    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
737    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
738      remove checkpoint.F and the_correction_step.F (no longer used);
739      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
740    o add option (linFSConserveTr) to correct for tracer source/sink due to
741      Linear Free surface
742    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
743    o pkg/thsice: fix reading mnc-pickups
744    
745    checkpoint58t_post
746    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
747    o pkg/mdsio:
748     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
749       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
750       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
751     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
752     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
753       either MDS_READ_FIELD or MDS_WRITE_FIELD )
754     - new S/R (to replace MDSWRITEMETA), which allows to write more
755       informations (variable names, time ...) to meta files.
756     - modify rdmds.m to give back the meta file content.
757    o pkg/diagnostics: change vertical interpolation to be safer, and more
758       flexible (define p-levels to interpolate to in data.diagnostics);
759      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
760       diagnostic pointer.
761    o pkg/seaice: more cleaning up of seaice_growth, added many comments
762    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
763  o fix multi-category seaice:  o fix multi-category seaice:
764   - change cpp flag SEAICE_MULTILEVEL to more meaningful name:   - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
765     SEAICE_MULTICATEGORY     SEAICE_MULTICATEGORY
766   - fix short wave heat flux   - fix short wave heat flux
767    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
768       and allow to use EVP solver. Change forward lab_sea: test both EVP
769       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
770  o Initial check-in of lab_sea adjoint  o Initial check-in of lab_sea adjoint
771    (very similar to natl_box_adjoint/code_seaice)    (very similar to natl_box_adjoint/code_seaice)
772    * used C-grid and EVP solver    * used C-grid and EVP solver

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