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revision 1.770 by jmc, Thu Feb 8 00:12:37 2007 UTC revision 1.978 by jmc, Thu Apr 24 03:25:11 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o tutorial_deep_convection :
8      update the set-up and increase resolution and domain size ; start
9      from pseudo initial conditions = output at t=120mn in order to see
10      something happening when running testreport.
11    o pkg/seaice: add os7mp as an advection scheme
12                  add check for advection schemes
13                  add a flag for restoring T and S underneath sea ice
14    o pkg/my82: add netcdf-support and diagnostics
15    o thsice pkg:
16      - Now hsMax limits snow heitght by turning it into ice following
17        flooding scheme (and now conserving energy)
18      - Slight rewriting of the formula in thsice_calc_thick.F
19      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
20        --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
21    
22    checkpoint59p
23    o gchem / dic / cfc :
24      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
25      - add new parameter files: "data.dic" & "data.cfc" ;
26      - various re-arrangement in initialisation & header file ;
27      - fix tutorial_global_oce_biogeo for multi-threaded test.
28    o pkg/dic: test for "pickup_dic" file when restarting ;
29      if no pickup-file, can restart with a re-initialised pH (same as it did
30      before) providing pickupStrictlyMatch is set to False.
31    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
32      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
33    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
34      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
35    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
36     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
37       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
38    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
39       scheme to use for vorticty-term ;
40     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
41       (with default selectVortScheme, return to original discretisation)
42     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
43    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
44    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
45      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
46      also fix diagnostics VISCAHW & VISCA4W.
47    
48    checkpoint59o
49    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
50    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
51      move a few statemens out the main loop into separate loops
52    o pkg/shelfice:
53      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
54        (kg/m^2/s), does not break tests, because in verification/isomip,
55        rhoConstFresh=rhoConst (by accident)
56      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
57      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
58        new file model/src/seawater.F, so that they are available for all pkgs.
59      - convert potential temperature into in-situ temperature. This changes the
60        isomip tests => update tests
61    o add a flag writePickupAtEnd (default=true) to be able to suppress
62      writing a pickup at the last timestep
63    o tools/mpack-1.6 :
64      - disable automake (not working) and autoconf (not needed).
65      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
66        also cleaner with much less compilation warnings.
67    o pkg/profiles:
68      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
69      (for "less than 32 characters name" compiler requirement)
70    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
71      conditions that have a different sampling frequency than S/T/U/V obcs
72    o pkg/diagnostics (stats-diags):
73      - fix global Min/Max in case 1 processor get only empty tiles
74    o genmake2: replace (4 times)
75         make genmake_tc_1.o >> genmake_warnings 2>&1
76      with
77         COMM="$CC $CFLAGS -c genmake_tc_1.c"
78         echo $COMM >> genmake_warnings
79         $COMM >> genmake_warnings 2>&1
80      to make genmake2 always see the value of CC as specified in the optfile.
81    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
82      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
83      - modify verification advect_cs test to test SOM-advection on CS-grid.
84    o pkg/ctrl:
85      - Rewrite of ctrl_map_ini_ecco.F,
86        introducing a generic routine (ctrl_map_ini_gen.F).
87      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
88    
89    checkpoint59n
90    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
91      number in dedicate array "hdiag":
92      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
93        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
94      - many small changes (integer format) for large number of diagnostics
95      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
96        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
97    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
98      usingSphericalGrid, this allows to define the rotated grid coordinates
99      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
100      geographical coordinates according to the inverse of the rotation defined
101      by the Euler angles, so that Coriolis parameter and online-interpolation by
102      exf works with the geographical coordinates on XC/YC/XG/YG.
103      Naturally, this feature does not work with all packages, so some
104      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
105      profiles), because there the coordinates are assumed to be regular
106      spherical grid coordinates.
107    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
108      - introduce isopycnal diffusion coefficient control.
109    o tools/adjoint_options:
110      - additional control vector components.
111    o pkg/mnc: have mnc create marginally meaning full coordinate variables
112      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
113    o pkg/mypackage:
114      - add example of read/write pickup for state-var ;
115      - add entry points to the main code for state-vars diags & write-pickup.
116    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
117      transitions for useExfYearlyFields
118      - add new subroutine that determines the file to read from for
119        use*YearlyFields = .TRUE. and .FALSE.
120      - add a verification experiment to global_with_exf that tests
121        useExfYearlyFields with USE_EXF_INTERPOLATION defined
122    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
123      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
124      subroutines (which could be generated from a template, because they are
125      almost identical), for now they are included in obcs_prescribe_read.F for
126      simplicity
127    o pkg/exf:
128      - add a little more diagnostic to exf_interp_read (in analogy to
129        mds_read_field, can be turned off with debugLevel < debugLevA=1)
130      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
131        ugly but fast by unrolling short inner loops, inserting a unroll=8
132        directive in routine lagran, and splitting a loop and making do while the
133        outermost loop (the latter requires the intoduction of index arrays)
134    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
135    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
136      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
137    o verification/seaice_obcs: updated for restart test and latest options
138    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
139      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
140      for now this is only available for the C-grid code and also within
141      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
142    
143    checkpoint59m
144    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
145      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
146    o gad_som : fix flux output (& diagnostics) to have same units as other  
147      advection scheme fluxes (was previously multiplied by deltaT).  
148    o added verification/seaice_obcs both to test seaice open boundaries
149      and to provide an example matlab scrpt for generating them
150    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
151    o pkg/salt_plume: clean up salt_plume_frac.F to
152      remove redundancy in PlumeMethod 1 and 4
153    o pkg/kpp: added saltplume diagnostics
154    o pkg/obcs and pkg/seaice:
155      - do not set uice and vice to zero when OB*icefile are unspecified
156      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
157      - moved seaice tracer obcs after call to seaice_growth
158    o pkg/salt_plume: added various options for salt plume depth
159      criterion and for vertical distribution of the salt
160    
161    checkpoint59l
162    o pkg/ptracers: new version of ptracers pickup:
163      read meta file and write only fields which are needed to restart.
164      ( same logic as main pickup file ; also using pickupStrictlyMatch )
165    o pkg/seaice:
166      - add timescale for melting due to warm mixed layer as a means of
167        setting SEAICE_availHeatFrac more conveniently
168      - add a CPP-flag/runtime parameter check for flooding algorithm
169      - reformulated availHeat in seaice_growth.F to be independent of AREA
170    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
171      unit changes
172    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
173    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
174      SX vector computer.
175    o pkg/seaice:
176      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
177        seaice forcing fields can now be read only through pkg/exf
178      - removed some unused halos
179    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
180    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
181      or U/VICE from U/VWIND before computing U/VSTRESS
182    
183    checkpoint59k
184    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
185      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
186    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
187      all experiments pass when compile with un-initialised var. checking option.
188    o added pkg/salt_plume
189    o script to test restart (for now, in MITgcm_contrib/jmc_script)
190    o pkg/seaice: new read/write pickup version.
191      read meta file and write only fields which are needed to restart.
192      ( same logic as main pickup file ; also using pickupStrictlyMatch )
193    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
194    o lab_sea.hb87: modify the domain & update output.hb87.txt :
195      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
196      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
197      process. Fixed here by closing the domain at the Northern boundary.
198    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
199    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
200      a set of consecutive levels in/from a 3-D array.
201    o pkg/ptracers:
202      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
203      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
204    
205    checkpoint59j
206    o in pkgs: dic, obcs, offline, rbcs:
207      standard way to compute coeff. for time interpolation between 2 time reccords
208      which retains full precision (& make results less dependent on compiler).
209      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
210    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
211      packages instead of reading ice cover and wind speed separately
212    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
213     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
214      to allow to compile customized code before the update)
215    o cleaning-up:
216      - fix CPP instruction syntax in pkg/obcs
217      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
218        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
219      - fix some threads issue in IO parts.
220    o pkg/dic:
221      - add tons of "_d 0" (--> much better testreports !)
222       and then update outputs of tutorial_global_oce_biogeo
223    o pkg/mom_fluxform:
224      add a special version of momentum advection intended to conserve momentum
225      next to a bathymetry step or a coastline edge. (default = off = #undef)
226    o new read/write pickup version:
227      - for now, only implemented for main (mdsio) pickup file.
228      - write out only what is needed to restart; merge pickup_nh , pickup_ph
229        and main pickup together.
230      - read meta file; read only what is needed to restart; stop if a field
231        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
232        if it make sense (even if the restart is not perfect).
233      - if no meta file, assume that pickup to read corresponds exactly to
234        a pickup that would currently be written.
235      - read pickup written in the old format (until checkpoint59i) if it
236        recognizes an old meta file (no field-list).
237      - add a meta file in exp. which starts from a pickup: 2 cases:
238        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
239         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
240        b) a meta file describing the content of the associated pickup file
241         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
242    o pkg/mdsio & pkg/rw:
243      - new routine to read a meta file ; new set of routine to read
244        Multiple-fields file (with meta file).
245    o added open boundary conditions capability for seaice
246        HSNOW, HSALT, UICE, and VICE
247    
248    checkpoint59i
249    o adjoint:
250      * fix multiDimAdvection adjoint
251        (partial recomputation problem by TAF for fVerT(:,:,kDown)
252        and comlev1 size definition (maxpass vs. max. number of tracers)
253      * verification/global_ocean.90x45x15 adjoint now tests
254        NLFS and multiDimAdvection using DST3 (=30)
255      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
256    o pkg/kpp: add "_d 0" to real constant (if missing);
257      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
258      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
259    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
260      for internal parameters related to restart process (formerly from PARAMS.h)
261      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
262    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
263      as argument. (only atm2d & obcs write_pickup have not yet been updated)
264    o pkg/monitor:
265      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
266      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
267      - account for deep Atmosphere factor and density factor (anelastic)
268    o added open boundary conditions capability for seaice HEFF and AREA
269    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
270      thermodynamics
271      - requires a little reorganization, which affects the testreport results
272        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
273        so that now the conservative form is tested
274      - add a few comments
275    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
276    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
277    o add new diagnostics to seaice: advective, diffusive fluxes (only for
278      multidim-advection, for scheme 2 they are not filled) and transports,
279      thermodynamic growth rates
280    o change units of EmPmR (inside the code, + within coupling interface)
281      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
282      Affects results @ truncation level (cg2d match) and update output of
283       experiments: lab_sea(6), global_ocean.90x40x15(10),
284      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
285      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
286      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
287      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
288    
289    checkpoint59h
290    o pkg/exf:
291      - improve vectorization by moving if-statement out of loops in
292        exf_mapfields, exf_radiation
293      - exf_bulkformulae.F: introduce 2D fields and vectorize code
294    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
295    o testreport:
296      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
297        monitor & update offline_exf_seaice exp. output.
298      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
299    o pkg/seaice:
300      - bug fix in the evp solver: boundary conditions were affected be
301        masking of zMax/zMin (changes results)
302      - minor bug fix in boundary conditions in seaice_calc_strainrates
303        (changes results for no_slip)
304      - seaice_lsr.F: make interpolation of eta dependent on boundaries
305      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
306      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
307        stress formulation and no-slip boundary conditions
308    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
309      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
310    o pkg/seaice: a first HSALT time stepping equation has been checked in
311    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
312      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
313      without requiring DO-IF statements
314    o pkg/thsice:
315      use continuous power-law function for partition of energy between lateral
316      melting/freezing and thinning/thickening ; old code using step function
317      still available with #undef THSICE_FRACEN_POWERLAW
318      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
319    o testreport: change AD testing : check against results/output_adm.txt
320      using same scripts as for forward test.
321    
322    checkpoint59g
323    o adjoint testing: in preparation for changing testreport:
324      - output format: cost and grad written on separated lines
325      - ad output results in directory "results" (instead of "results_ad")
326    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
327    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
328    o pkg/ecco: allow user defined cost function contributions
329    o testreport:
330      Allow to choose (per experiment) the list of tested output variables
331       and the main variable (used to issue a pass/FAIL ) ;
332      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
333      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
334      Also modify printing of summary:
335       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
336       b) echo the list of tested variables in the individual summary.txt of
337          each experiment.
338    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
339      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
340      (but still depend on the tile decompostion of the domain).
341    o pkg/seaice: change a discretization detail to make the B-grid code
342      "more symmetric". This change is likely to remove all "ridges/leads" that
343      where quasi-aligned with the grid in B-grid solutions. It may also be
344      the solution to the stress coupling issues with the B-grid.
345    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
346      remove .cvsignore from input dir. (since testreport no longer run here).
347    o pkg/thsice:
348     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
349     - fix reshaping of sea-ice just after advection:
350       melt all the ice only if ice-volume is too small.
351     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
352       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
353     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
354    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
355      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
356    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
357      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
358      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
359      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
360      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
361      -> update output.txt
362    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
363     this affects truncation error: -> update output.txt of exp:
364      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
365      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
366    
367    checkpoint59f
368    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
369    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
370      a bounded range (in forward mode)
371    o pkg/ecco, ctrl, autodiff and mom_common:
372     internal parameter controls, completements of implementations
373    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
374    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
375      (not seem any difference in testing results).
376    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
377       at face corners.
378    o pkg/generic_advdiff:
379     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
380      loop range indices for computing vertical advection tendency
381      and do the calculation in the interior only (no overlap) ;
382      for now, only implemented for SOM advection (to save CPU time).
383     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
384    o exch2 adjoint
385      First set of changes:
386      - add exch2 hand-written adjoint templates
387      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
388        This will require cleanup in pkg/autodiff/*.F
389        (changed routines currently kept separate in verif. code/)
390      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
391        that used to hide exch2 or cubed-sphere specific code
392        (commented via 'cph-exch2')
393    o pkg/seaice
394      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
395    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
396       output of global_ocean.cs32x15.thsice .
397    
398    checkpoint59e
399    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
400      for B-grid vector (not yet tested) and C-grid vector (<- only used
401      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
402    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
403      (#ifdef ALLOW_SALT_PLUME)
404    o gather_2d/scatter_2d: removed halo regions
405    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
406      scheme and the corresponding test case (under front_relax dir). For now,
407      only available with Skew-flux form and not yet tested in realistic set-up.
408      adjoint: store directives updated, but gradient checks deteriorated,
409      so maybe GM/Redi adjoint is now broken.
410    o seaice adjoint
411      * add AREA, HEFF, HSNOW as control variable
412        (should not change lab_sea results)
413      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
414    o pkg/seaice:
415      * added computation of saltFlux in seaice_growth;
416        For time being, sea ice salinity is assumed constant
417        contribution of snow flooding to freshening of sea ice is neglected.
418        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
419        defaults to 0.0 in order to maintain backward compatibility.
420        Typical values for SEAICE_salinity are 4 to 10 g/kg.
421      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
422      * added SEAICE_availHeatFrac, which specifies fraction of surface level
423        heat content used to melt or grow ice
424      * commented out cap of HICE: it helps keep ice thinner
425      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
426      * applied OBCS T/S mask to HEFFM sea ice mask
427    
428    checkpoint59d
429    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
430     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
431     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
432    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
433     and change default value of parameter "GM_Small_Number";
434     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
435       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
436       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
437    o pkg/ecco: cost function when applying pkg/smooth to controls
438    o pkg/ctrl: add forcingPrecond run time parameter
439    o pkg/seaice:
440     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
441     - fix bug in metric terms of u-equation in LSR solver (implicit part),
442       changes verification/lab_sea
443     - rearrange implicit part of u-equation in LSR solver to make it easier to
444       read, understand, and debug. This causes changes at the truncation level.
445     - fix (serious) bug in the boundary conditions (sign error in the implicit
446       part) of the LSR solver. Changes all LSR results.
447     - fixed problem with HSNOW initialization to avoid thick snow when AREA
448       is initilized with small values - does not change lab_sea results.
449     - added HsnowFile initialization capability
450    o pkg/smooth: addition to model/src and pkg/ctrl so allow
451     initialization of pkg/smooth and application to control vector
452    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
453    o dependencies: pkg/profiles requires pkg/cal
454    o pkg/profiles:
455     - added option ALLOW_PROFILES_GENERICGRID
456         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
457         that interpolation information (grid points and coefficients) is provided
458         within the netcdf input files.
459         -> sample matlab scripts can be found in MITgcm_contrib/gael
460         that allow you to prepare netcdf input files.
461     - also modified: cleaner include statements, cleaner error print statements,
462       cleaner stops when error, and more tests of the netcdf input files consistency.
463    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
464    o pkg/seaice:
465     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
466       requires a new routine: seaice_diagnostics_fill.F
467     - make sure that seaice does not move if not forced (pressure replacement
468       method, Hibler and Ip, 1995), changes results
469     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
470     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
471       It is turned off by default (=-1.), because it changes the results.
472     - make it possible to read AREA from a file, too.
473    
474    checkpoint59c
475    o add S/R and diagnostics for oceanic mixed-layer depth
476    o move GMRedi call after all vertical mixing schemes (including KPP)
477    o pkg/thsice:
478     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
479      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
480    o pkg/obcs:
481     - bug fix for balance code
482    o pkg/seaice:
483      - allow values of SEAICE_elasticParm > 1
484      - add new parameter SEAICE_evpTauRelax as an alternative
485        to SEAICE_elasticParm
486      - make lsr boundary conditions free slip (by default), changes result
487      - add code for no slip boundary conditions for lsr
488      - set minimum of zeta to zero (and not 4e8) (changes results)
489      - add a cap on AREA after advecting AREA if seaice_growth is not called
490    o change calculation of Visbeck K:
491      - no longer depend on tapering scheme; instead, compute slope (limited
492        by GM_maxSlope). this is equivalent to what was comuted before with
493        clipping or linear tappering.
494      - fix vertical averaging (wrong by 1/2 level)
495      - leave the old version (but will not be maintained) within
496        #ifdef OLD_VISBECK_CALC / #endif
497      - update output of exp. ideal_2D_oce
498    o change error catch in calc_r_star to improve vectorization
499    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
500      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
501    o adjoint:
502      Re-organized adjoint checkpointing according to Matt Mazloff
503      (but with modifs/completions/cleanups)
504      Storing is now bundled into large arrays to optimized I/O
505      (and second step in cleanup of the_main_loop)
506    
507    checkpoint59b
508    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
509      - export/import (between ocean & coupler) fields needed for ocean DIC.
510    o pkg/seaice:
511      - get rid of three more exchanges seaice_calc_viscosities (required
512        different loop boundaries in seaice_lsr and seaice_ocean_stress)
513      - bug fix in seaice_ocean_stress (update of lab_sea required)
514      - reduce loop boundaries to necessary minimum also in seaice_evp
515      - go back to the old way of computing deltaC/Z as the adjoint likes that
516        better
517    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
518      passive tracer to an Age Tracer) + update output.txt
519    o pkg/exf:
520      - implement A-grid / C-grid selection for wind-stress input files.
521      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
522      for now, in exf_bulk_largeyeager04.F only :
523      - change implementation for case where windspeed + 2. components wind-stress
524        are read-in. AND use rhoConstFresh to convert evap.
525    o pkg/seaice:
526      - use correct EXCH_UV for wind-forcing (on A-grid).
527      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
528        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
529    o pkg/exf:
530      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
531      EXF_INTERPOLATION:
532      - merge global_with_exf/code version of exf_interp_read.F
533        to the main code ;
534      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
535        reading the file ; Important: This options needs to be defined to recover
536        previous code.
537        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
538      - no longer loose real*8 precision along the way when using exf_iprec=64.
539    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
540      - change discretisation of evp-solver in order to avoid another exchange
541        (changes lab_sea) and clean up a little
542      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
543        help the adjoint (this also changes the results slightly)
544      - add a few "_d 0" where they had been missing in seaice_evp.F
545      - cleaning up: remove unused seaice_calc_rhs.F
546    o pkg/exf: some cleaning-up:
547      - change various "constants" into runtime parameters
548      - cleaned-up Large&Yeager04 routine which should eventually
549        replace exf_bulkformulae.F (changed names of S/R and CPP)
550        and merged various ALLOW_ATM_WIND options
551     only used with thsice pkg (in thsice_get_exf.F):
552      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
553        which are used when useStabilityFct_overIce=TRUE (= the default)
554      - change default values of ice & snow emissivity and scale downward LW
555        by ice & snow emissivity.
556    o pkg/thsice:
557     fix few little problems, in thsice_calc_thickn.F:
558      - growth vertically (and not laterally) if iceFrac == iceMaskMax
559      - melt only laterally if hIce < hThinIce (as the comments say)
560      and in thsice_extend.F:
561      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
562      - start to form ice as soon as the minimum ice-volume is reachable.
563     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
564      and cpl_aim+ocn
565    o pkg/kpp
566     - move computation of surface related input fields to KPP into a new
567       subroutine kpp_forcing_surf.F
568     - remove wrong (within bi,bj loops) EXCH calls.
569     - little cleaning (add argument myThid in last position, cvs header ...)
570     - for now, fix conservation problem by exchanging KPPviscAz (may not
571       be the best fix)
572    o pkg/seaice
573     - check for inconsistent evp parameter/cpp-flag combination
574     - remove leftover errIO flat for obsolete name list error handling
575    o OpenAD
576     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
577    
578    checkpoint59a
579    o pkg/seaice: some parameter clarifications and a little bit of clean up
580    o pkg/thsice: rename run-time parameters:
581       himin       -> hIceMin
582       himin0      -> hThinIce
583       hihig       -> hThickIce
584       i0          -> i0swFrac
585       transCoef   -> bMeltCoef
586       frac_energy -> fracMelting
587      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
588       with default values (for now) that do not change the results.
589      remove old version of thsice vars advection in pkg/seaice.
590    o in FFIELDS.h:
591      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
592      - make pLoad & sIceLoad always available (but still only used if
593         ATMOSPHERIC_LOADING is #define).
594    o pkg/kpp: replaced _KPP_RL with _RL
595    o bug fixes for vertical diffusivity computations when both KPP and
596        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
597        are no longer updating the vertical diffusivity array
598        (passed as argument) but are (re-) setting those arrays.
599    o pkg/seaice: fix bug in evp solver, while doing that
600      - change (improve?) discretization of stress computations for both
601        cgrid-lsr and evp solver
602      - add a new routine to compute strain rates
603      - the above changes lab_sea results
604      - add no slip conditions for evp solver (off by default), lsr-version
605        may follow
606      - fix exchange for shear at Z-points (does not change lab_sea)
607      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
608        (to force the user to pick a time step since there is not "safe" way
609        of choosing it)
610      - add principal stress diagnostics
611      - rearrange fields for evp a little to avoid having to call a: too many
612        exchanges and b: exchanges for stress trensor components which we do
613        not have.
614      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
615        of evp, complete rewrite for lsr case (latter is does not yet work
616        in all cases)
617    o pkg/kpp: add code to have mixing in shelf ice caverns
618      - add myThid to all kpp routines (long overdue)
619    
620    checkpoint59
621    o pkg/exf:
622      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
623        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
624      - move exf header files from lower_case.h to UPPER_CASE.h ;
625        add missing cvs Header & Name
626      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
627      - add namelist param. selectStressGridPosition, exf_monFreq
628      - retire many _CLIM routines, and remove data.exf_clim
629        + params moved to data.exf
630        + climsst, climsss now handled by exf_set_gen, i.e.
631          climss?period=0 refers to constant field,
632          climss?period=-12 to monthly forcing
633      - split up namelists in data.exf
634    o pkg/seaice:
635      - remove seaice_exch and seaice_exch_uv
636      - remove superfluous exchange of theta
637      - add myThid to seaice_budget_ocean/ice
638      - add new interface for atmospheric wind forcing (C-grid only)
639        + new routine
640        + two new field (taux, tauy for stress over ice)
641        + removed one global field (DAIRN) for C-grid case only
642    o pkg/thsise
643      - 2nd set of modifs for thsice adjoint in conjunction with exf
644    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
645    
646    checkpoint58y_post
647    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
648      vertical diffusivity, similar to that in MOM4; turned on using
649      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
650      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
651    o Added capability for 3D specification of background vertical diffusion
652      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
653      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
654      "data" file that contains the 3D vertical diffusivity coefficients.
655    o ice dynamics (pkg/seaice) with thsice thermodynamics:
656      - add code within pkg thsice to advect & diffuse sea-ice fields
657      similar to (and will replace) what has been added in  seaice_advdiff.F,
658      but: - conserving Mass, Heat & Salt.
659           - better when using non-linear advection scheme (not yet fully tested)
660           - can also be used in atmospheric set-up (for now, only the diffusion).
661    
662    checkpoint58x_post
663    o IO option for global-file compact format:
664      - add options when generating topology (utils/exch2/matlab-topology-generator)
665      - add I/O capability (pkg/mdsio).
666      - adapt utils/matlab/rdmds.m to read this format.
667      for now long-line format not yet supported by pkg/mdsio (& exch2).
668    o shelfice: add a few diagnostics
669    
670    checkpoint58w_post
671    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
672      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
673      (and replace horiVertRatio in NH code).
674      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
675                         and tutorial_plume_on_slope (sensitive to truncation)
676    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
677      directly to drive seaice model (C-grid only)
678    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
679     - reintroduce computation of wind from stress,
680     - compute tau (in exf_bulkformulae.F) from windstress averaged to
681       mass points to avoid tau = 0
682     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
683    o rdmnc.m: make it work with "global" files created with gluemnc
684    o rdmnc.m : some improvements in dealing with singleton dimension
685      (tested on all testreport mnc output files).
686    o genmake2: disable pkg/profiles if netcdf test fails.
687    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
688    o move call to cal_readparms up to make calendar parameters/variable available
689      to all packages
690    
691  checkpoint58v_post  checkpoint58v_post
692  o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get  o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
693    useDynP_inEos_Zc tested.    useDynP_inEos_Zc tested.

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