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revision 1.794 by mlosch, Thu Apr 19 15:49:24 2007 UTC revision 1.984 by gforget, Tue Apr 29 21:43:54 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 pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
8    o pkg/obcs: change default to OBCSfixTopo = .true.,
9      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
10      - replace "debugMode" with "debugLevel .GE. debLevB"
11    o implementation of TAF directives for gchem,cfc,dic
12    o remove "exp5" (replaced by tutorial_deep_convection).
13    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
14      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
15      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
16      --> changes results in exp4, seaice_obcs
17    o tutorial_deep_convection :
18      update the set-up and increase resolution and domain size ; start
19      from pseudo initial conditions = output at t=120mn in order to see
20      something happening when running testreport.
21    o pkg/seaice: add os7mp as an advection scheme
22                  add check for advection schemes
23                  add a flag for restoring T and S underneath sea ice
24    o pkg/my82: add netcdf-support and diagnostics
25    o thsice pkg:
26      - Now hsMax limits snow height by turning it into ice following
27        flooding scheme (and now conserving energy)
28      - Slight rewriting of the formula in thsice_calc_thick.F
29      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
30      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
31    
32    checkpoint59p
33    o gchem / dic / cfc :
34      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
35      - add new parameter files: "data.dic" & "data.cfc" ;
36      - various re-arrangement in initialisation & header file ;
37      - fix tutorial_global_oce_biogeo for multi-threaded test.
38    o pkg/dic: test for "pickup_dic" file when restarting ;
39      if no pickup-file, can restart with a re-initialised pH (same as it did
40      before) providing pickupStrictlyMatch is set to False.
41    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
42      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
43    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
44      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
45    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
46     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
47       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
48    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
49       scheme to use for vorticty-term ;
50     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
51       (with default selectVortScheme, return to original discretisation)
52     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
53    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
54    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
55      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
56      also fix diagnostics VISCAHW & VISCA4W.
57    
58    checkpoint59o
59    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
60    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
61      move a few statemens out the main loop into separate loops
62    o pkg/shelfice:
63      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
64        (kg/m^2/s), does not break tests, because in verification/isomip,
65        rhoConstFresh=rhoConst (by accident)
66      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
67      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
68        new file model/src/seawater.F, so that they are available for all pkgs.
69      - convert potential temperature into in-situ temperature. This changes the
70        isomip tests => update tests
71    o add a flag writePickupAtEnd (default=true) to be able to suppress
72      writing a pickup at the last timestep
73    o tools/mpack-1.6 :
74      - disable automake (not working) and autoconf (not needed).
75      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
76        also cleaner with much less compilation warnings.
77    o pkg/profiles:
78      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
79      (for "less than 32 characters name" compiler requirement)
80    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
81      conditions that have a different sampling frequency than S/T/U/V obcs
82    o pkg/diagnostics (stats-diags):
83      - fix global Min/Max in case 1 processor get only empty tiles
84    o genmake2: replace (4 times)
85         make genmake_tc_1.o >> genmake_warnings 2>&1
86      with
87         COMM="$CC $CFLAGS -c genmake_tc_1.c"
88         echo $COMM >> genmake_warnings
89         $COMM >> genmake_warnings 2>&1
90      to make genmake2 always see the value of CC as specified in the optfile.
91    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
92      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
93      - modify verification advect_cs test to test SOM-advection on CS-grid.
94    o pkg/ctrl:
95      - Rewrite of ctrl_map_ini_ecco.F,
96        introducing a generic routine (ctrl_map_ini_gen.F).
97      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
98    
99    checkpoint59n
100    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
101      number in dedicate array "hdiag":
102      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
103        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
104      - many small changes (integer format) for large number of diagnostics
105      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
106        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
107    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
108      usingSphericalGrid, this allows to define the rotated grid coordinates
109      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
110      geographical coordinates according to the inverse of the rotation defined
111      by the Euler angles, so that Coriolis parameter and online-interpolation by
112      exf works with the geographical coordinates on XC/YC/XG/YG.
113      Naturally, this feature does not work with all packages, so some
114      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
115      profiles), because there the coordinates are assumed to be regular
116      spherical grid coordinates.
117    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
118      - introduce isopycnal diffusion coefficient control.
119    o tools/adjoint_options:
120      - additional control vector components.
121    o pkg/mnc: have mnc create marginally meaning full coordinate variables
122      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
123    o pkg/mypackage:
124      - add example of read/write pickup for state-var ;
125      - add entry points to the main code for state-vars diags & write-pickup.
126    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
127      transitions for useExfYearlyFields
128      - add new subroutine that determines the file to read from for
129        use*YearlyFields = .TRUE. and .FALSE.
130      - add a verification experiment to global_with_exf that tests
131        useExfYearlyFields with USE_EXF_INTERPOLATION defined
132    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
133      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
134      subroutines (which could be generated from a template, because they are
135      almost identical), for now they are included in obcs_prescribe_read.F for
136      simplicity
137    o pkg/exf:
138      - add a little more diagnostic to exf_interp_read (in analogy to
139        mds_read_field, can be turned off with debugLevel < debugLevA=1)
140      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
141        ugly but fast by unrolling short inner loops, inserting a unroll=8
142        directive in routine lagran, and splitting a loop and making do while the
143        outermost loop (the latter requires the intoduction of index arrays)
144    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
145    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
146      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
147    o verification/seaice_obcs: updated for restart test and latest options
148    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
149      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
150      for now this is only available for the C-grid code and also within
151      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
152    
153    checkpoint59m
154    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
155      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
156    o gad_som : fix flux output (& diagnostics) to have same units as other  
157      advection scheme fluxes (was previously multiplied by deltaT).  
158    o added verification/seaice_obcs both to test seaice open boundaries
159      and to provide an example matlab scrpt for generating them
160    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
161    o pkg/salt_plume: clean up salt_plume_frac.F to
162      remove redundancy in PlumeMethod 1 and 4
163    o pkg/kpp: added saltplume diagnostics
164    o pkg/obcs and pkg/seaice:
165      - do not set uice and vice to zero when OB*icefile are unspecified
166      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
167      - moved seaice tracer obcs after call to seaice_growth
168    o pkg/salt_plume: added various options for salt plume depth
169      criterion and for vertical distribution of the salt
170    
171    checkpoint59l
172    o pkg/ptracers: new version of ptracers pickup:
173      read meta file and write only fields which are needed to restart.
174      ( same logic as main pickup file ; also using pickupStrictlyMatch )
175    o pkg/seaice:
176      - add timescale for melting due to warm mixed layer as a means of
177        setting SEAICE_availHeatFrac more conveniently
178      - add a CPP-flag/runtime parameter check for flooding algorithm
179      - reformulated availHeat in seaice_growth.F to be independent of AREA
180    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
181      unit changes
182    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
183    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
184      SX vector computer.
185    o pkg/seaice:
186      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
187        seaice forcing fields can now be read only through pkg/exf
188      - removed some unused halos
189    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
190    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
191      or U/VICE from U/VWIND before computing U/VSTRESS
192    
193    checkpoint59k
194    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
195      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
196    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
197      all experiments pass when compile with un-initialised var. checking option.
198    o added pkg/salt_plume
199    o script to test restart (for now, in MITgcm_contrib/jmc_script)
200    o pkg/seaice: new read/write pickup version.
201      read meta file and write only fields which are needed to restart.
202      ( same logic as main pickup file ; also using pickupStrictlyMatch )
203    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
204    o lab_sea.hb87: modify the domain & update output.hb87.txt :
205      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
206      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
207      process. Fixed here by closing the domain at the Northern boundary.
208    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
209    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
210      a set of consecutive levels in/from a 3-D array.
211    o pkg/ptracers:
212      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
213      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
214    
215    checkpoint59j
216    o in pkgs: dic, obcs, offline, rbcs:
217      standard way to compute coeff. for time interpolation between 2 time reccords
218      which retains full precision (& make results less dependent on compiler).
219      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
220    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
221      packages instead of reading ice cover and wind speed separately
222    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
223     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
224      to allow to compile customized code before the update)
225    o cleaning-up:
226      - fix CPP instruction syntax in pkg/obcs
227      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
228        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
229      - fix some threads issue in IO parts.
230    o pkg/dic:
231      - add tons of "_d 0" (--> much better testreports !)
232       and then update outputs of tutorial_global_oce_biogeo
233    o pkg/mom_fluxform:
234      add a special version of momentum advection intended to conserve momentum
235      next to a bathymetry step or a coastline edge. (default = off = #undef)
236    o new read/write pickup version:
237      - for now, only implemented for main (mdsio) pickup file.
238      - write out only what is needed to restart; merge pickup_nh , pickup_ph
239        and main pickup together.
240      - read meta file; read only what is needed to restart; stop if a field
241        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
242        if it make sense (even if the restart is not perfect).
243      - if no meta file, assume that pickup to read corresponds exactly to
244        a pickup that would currently be written.
245      - read pickup written in the old format (until checkpoint59i) if it
246        recognizes an old meta file (no field-list).
247      - add a meta file in exp. which starts from a pickup: 2 cases:
248        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
249         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
250        b) a meta file describing the content of the associated pickup file
251         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
252    o pkg/mdsio & pkg/rw:
253      - new routine to read a meta file ; new set of routine to read
254        Multiple-fields file (with meta file).
255    o added open boundary conditions capability for seaice
256        HSNOW, HSALT, UICE, and VICE
257    
258    checkpoint59i
259    o adjoint:
260      * fix multiDimAdvection adjoint
261        (partial recomputation problem by TAF for fVerT(:,:,kDown)
262        and comlev1 size definition (maxpass vs. max. number of tracers)
263      * verification/global_ocean.90x45x15 adjoint now tests
264        NLFS and multiDimAdvection using DST3 (=30)
265      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
266    o pkg/kpp: add "_d 0" to real constant (if missing);
267      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
268      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
269    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
270      for internal parameters related to restart process (formerly from PARAMS.h)
271      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
272    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
273      as argument. (only atm2d & obcs write_pickup have not yet been updated)
274    o pkg/monitor:
275      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
276      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
277      - account for deep Atmosphere factor and density factor (anelastic)
278    o added open boundary conditions capability for seaice HEFF and AREA
279    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
280      thermodynamics
281      - requires a little reorganization, which affects the testreport results
282        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
283        so that now the conservative form is tested
284      - add a few comments
285    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
286    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
287    o add new diagnostics to seaice: advective, diffusive fluxes (only for
288      multidim-advection, for scheme 2 they are not filled) and transports,
289      thermodynamic growth rates
290    o change units of EmPmR (inside the code, + within coupling interface)
291      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
292      Affects results @ truncation level (cg2d match) and update output of
293       experiments: lab_sea(6), global_ocean.90x40x15(10),
294      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
295      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
296      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
297      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
298    
299    checkpoint59h
300    o pkg/exf:
301      - improve vectorization by moving if-statement out of loops in
302        exf_mapfields, exf_radiation
303      - exf_bulkformulae.F: introduce 2D fields and vectorize code
304    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
305    o testreport:
306      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
307        monitor & update offline_exf_seaice exp. output.
308      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
309    o pkg/seaice:
310      - bug fix in the evp solver: boundary conditions were affected be
311        masking of zMax/zMin (changes results)
312      - minor bug fix in boundary conditions in seaice_calc_strainrates
313        (changes results for no_slip)
314      - seaice_lsr.F: make interpolation of eta dependent on boundaries
315      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
316      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
317        stress formulation and no-slip boundary conditions
318    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
319      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
320    o pkg/seaice: a first HSALT time stepping equation has been checked in
321    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
322      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
323      without requiring DO-IF statements
324    o pkg/thsice:
325      use continuous power-law function for partition of energy between lateral
326      melting/freezing and thinning/thickening ; old code using step function
327      still available with #undef THSICE_FRACEN_POWERLAW
328      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
329    o testreport: change AD testing : check against results/output_adm.txt
330      using same scripts as for forward test.
331    
332    checkpoint59g
333    o adjoint testing: in preparation for changing testreport:
334      - output format: cost and grad written on separated lines
335      - ad output results in directory "results" (instead of "results_ad")
336    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
337    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
338    o pkg/ecco: allow user defined cost function contributions
339    o testreport:
340      Allow to choose (per experiment) the list of tested output variables
341       and the main variable (used to issue a pass/FAIL ) ;
342      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
343      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
344      Also modify printing of summary:
345       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
346       b) echo the list of tested variables in the individual summary.txt of
347          each experiment.
348    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
349      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
350      (but still depend on the tile decompostion of the domain).
351    o pkg/seaice: change a discretization detail to make the B-grid code
352      "more symmetric". This change is likely to remove all "ridges/leads" that
353      where quasi-aligned with the grid in B-grid solutions. It may also be
354      the solution to the stress coupling issues with the B-grid.
355    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
356      remove .cvsignore from input dir. (since testreport no longer run here).
357    o pkg/thsice:
358     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
359     - fix reshaping of sea-ice just after advection:
360       melt all the ice only if ice-volume is too small.
361     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
362       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
363     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
364    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
365      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
366    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
367      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
368      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
369      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
370      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
371      -> update output.txt
372    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
373     this affects truncation error: -> update output.txt of exp:
374      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
375      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
376    
377    checkpoint59f
378    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
379    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
380      a bounded range (in forward mode)
381    o pkg/ecco, ctrl, autodiff and mom_common:
382     internal parameter controls, completements of implementations
383    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
384    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
385      (not seem any difference in testing results).
386    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
387       at face corners.
388    o pkg/generic_advdiff:
389     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
390      loop range indices for computing vertical advection tendency
391      and do the calculation in the interior only (no overlap) ;
392      for now, only implemented for SOM advection (to save CPU time).
393     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
394    o exch2 adjoint
395      First set of changes:
396      - add exch2 hand-written adjoint templates
397      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
398        This will require cleanup in pkg/autodiff/*.F
399        (changed routines currently kept separate in verif. code/)
400      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
401        that used to hide exch2 or cubed-sphere specific code
402        (commented via 'cph-exch2')
403    o pkg/seaice
404      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
405    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
406       output of global_ocean.cs32x15.thsice .
407    
408    checkpoint59e
409    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
410      for B-grid vector (not yet tested) and C-grid vector (<- only used
411      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
412    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
413      (#ifdef ALLOW_SALT_PLUME)
414    o gather_2d/scatter_2d: removed halo regions
415    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
416      scheme and the corresponding test case (under front_relax dir). For now,
417      only available with Skew-flux form and not yet tested in realistic set-up.
418      adjoint: store directives updated, but gradient checks deteriorated,
419      so maybe GM/Redi adjoint is now broken.
420    o seaice adjoint
421      * add AREA, HEFF, HSNOW as control variable
422        (should not change lab_sea results)
423      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
424    o pkg/seaice:
425      * added computation of saltFlux in seaice_growth;
426        For time being, sea ice salinity is assumed constant
427        contribution of snow flooding to freshening of sea ice is neglected.
428        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
429        defaults to 0.0 in order to maintain backward compatibility.
430        Typical values for SEAICE_salinity are 4 to 10 g/kg.
431      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
432      * added SEAICE_availHeatFrac, which specifies fraction of surface level
433        heat content used to melt or grow ice
434      * commented out cap of HICE: it helps keep ice thinner
435      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
436      * applied OBCS T/S mask to HEFFM sea ice mask
437    
438    checkpoint59d
439    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
440     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
441     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
442    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
443     and change default value of parameter "GM_Small_Number";
444     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
445       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
446       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
447    o pkg/ecco: cost function when applying pkg/smooth to controls
448    o pkg/ctrl: add forcingPrecond run time parameter
449    o pkg/seaice:
450     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
451     - fix bug in metric terms of u-equation in LSR solver (implicit part),
452       changes verification/lab_sea
453     - rearrange implicit part of u-equation in LSR solver to make it easier to
454       read, understand, and debug. This causes changes at the truncation level.
455     - fix (serious) bug in the boundary conditions (sign error in the implicit
456       part) of the LSR solver. Changes all LSR results.
457     - fixed problem with HSNOW initialization to avoid thick snow when AREA
458       is initilized with small values - does not change lab_sea results.
459     - added HsnowFile initialization capability
460    o pkg/smooth: addition to model/src and pkg/ctrl so allow
461     initialization of pkg/smooth and application to control vector
462    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
463    o dependencies: pkg/profiles requires pkg/cal
464    o pkg/profiles:
465     - added option ALLOW_PROFILES_GENERICGRID
466         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
467         that interpolation information (grid points and coefficients) is provided
468         within the netcdf input files.
469         -> sample matlab scripts can be found in MITgcm_contrib/gael
470         that allow you to prepare netcdf input files.
471     - also modified: cleaner include statements, cleaner error print statements,
472       cleaner stops when error, and more tests of the netcdf input files consistency.
473    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
474    o pkg/seaice:
475     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
476       requires a new routine: seaice_diagnostics_fill.F
477     - make sure that seaice does not move if not forced (pressure replacement
478       method, Hibler and Ip, 1995), changes results
479     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
480     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
481       It is turned off by default (=-1.), because it changes the results.
482     - make it possible to read AREA from a file, too.
483    
484    checkpoint59c
485    o add S/R and diagnostics for oceanic mixed-layer depth
486    o move GMRedi call after all vertical mixing schemes (including KPP)
487    o pkg/thsice:
488     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
489      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
490    o pkg/obcs:
491     - bug fix for balance code
492    o pkg/seaice:
493      - allow values of SEAICE_elasticParm > 1
494      - add new parameter SEAICE_evpTauRelax as an alternative
495        to SEAICE_elasticParm
496      - make lsr boundary conditions free slip (by default), changes result
497      - add code for no slip boundary conditions for lsr
498      - set minimum of zeta to zero (and not 4e8) (changes results)
499      - add a cap on AREA after advecting AREA if seaice_growth is not called
500    o change calculation of Visbeck K:
501      - no longer depend on tapering scheme; instead, compute slope (limited
502        by GM_maxSlope). this is equivalent to what was comuted before with
503        clipping or linear tappering.
504      - fix vertical averaging (wrong by 1/2 level)
505      - leave the old version (but will not be maintained) within
506        #ifdef OLD_VISBECK_CALC / #endif
507      - update output of exp. ideal_2D_oce
508    o change error catch in calc_r_star to improve vectorization
509    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
510      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
511    o adjoint:
512      Re-organized adjoint checkpointing according to Matt Mazloff
513      (but with modifs/completions/cleanups)
514      Storing is now bundled into large arrays to optimized I/O
515      (and second step in cleanup of the_main_loop)
516    
517    checkpoint59b
518    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
519      - export/import (between ocean & coupler) fields needed for ocean DIC.
520    o pkg/seaice:
521      - get rid of three more exchanges seaice_calc_viscosities (required
522        different loop boundaries in seaice_lsr and seaice_ocean_stress)
523      - bug fix in seaice_ocean_stress (update of lab_sea required)
524      - reduce loop boundaries to necessary minimum also in seaice_evp
525      - go back to the old way of computing deltaC/Z as the adjoint likes that
526        better
527    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
528      passive tracer to an Age Tracer) + update output.txt
529    o pkg/exf:
530      - implement A-grid / C-grid selection for wind-stress input files.
531      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
532      for now, in exf_bulk_largeyeager04.F only :
533      - change implementation for case where windspeed + 2. components wind-stress
534        are read-in. AND use rhoConstFresh to convert evap.
535    o pkg/seaice:
536      - use correct EXCH_UV for wind-forcing (on A-grid).
537      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
538        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
539    o pkg/exf:
540      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
541      EXF_INTERPOLATION:
542      - merge global_with_exf/code version of exf_interp_read.F
543        to the main code ;
544      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
545        reading the file ; Important: This options needs to be defined to recover
546        previous code.
547        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
548      - no longer loose real*8 precision along the way when using exf_iprec=64.
549    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
550      - change discretisation of evp-solver in order to avoid another exchange
551        (changes lab_sea) and clean up a little
552      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
553        help the adjoint (this also changes the results slightly)
554      - add a few "_d 0" where they had been missing in seaice_evp.F
555      - cleaning up: remove unused seaice_calc_rhs.F
556    o pkg/exf: some cleaning-up:
557      - change various "constants" into runtime parameters
558      - cleaned-up Large&Yeager04 routine which should eventually
559        replace exf_bulkformulae.F (changed names of S/R and CPP)
560        and merged various ALLOW_ATM_WIND options
561     only used with thsice pkg (in thsice_get_exf.F):
562      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
563        which are used when useStabilityFct_overIce=TRUE (= the default)
564      - change default values of ice & snow emissivity and scale downward LW
565        by ice & snow emissivity.
566    o pkg/thsice:
567     fix few little problems, in thsice_calc_thickn.F:
568      - growth vertically (and not laterally) if iceFrac == iceMaskMax
569      - melt only laterally if hIce < hThinIce (as the comments say)
570      and in thsice_extend.F:
571      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
572      - start to form ice as soon as the minimum ice-volume is reachable.
573     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
574      and cpl_aim+ocn
575    o pkg/kpp
576     - move computation of surface related input fields to KPP into a new
577       subroutine kpp_forcing_surf.F
578     - remove wrong (within bi,bj loops) EXCH calls.
579     - little cleaning (add argument myThid in last position, cvs header ...)
580     - for now, fix conservation problem by exchanging KPPviscAz (may not
581       be the best fix)
582    o pkg/seaice
583     - check for inconsistent evp parameter/cpp-flag combination
584     - remove leftover errIO flat for obsolete name list error handling
585    o OpenAD
586     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
587    
588    checkpoint59a
589    o pkg/seaice: some parameter clarifications and a little bit of clean up
590    o pkg/thsice: rename run-time parameters:
591       himin       -> hIceMin
592       himin0      -> hThinIce
593       hihig       -> hThickIce
594       i0          -> i0swFrac
595       transCoef   -> bMeltCoef
596       frac_energy -> fracMelting
597      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
598       with default values (for now) that do not change the results.
599      remove old version of thsice vars advection in pkg/seaice.
600    o in FFIELDS.h:
601      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
602      - make pLoad & sIceLoad always available (but still only used if
603         ATMOSPHERIC_LOADING is #define).
604    o pkg/kpp: replaced _KPP_RL with _RL
605    o bug fixes for vertical diffusivity computations when both KPP and
606        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
607        are no longer updating the vertical diffusivity array
608        (passed as argument) but are (re-) setting those arrays.
609    o pkg/seaice: fix bug in evp solver, while doing that
610      - change (improve?) discretization of stress computations for both
611        cgrid-lsr and evp solver
612      - add a new routine to compute strain rates
613      - the above changes lab_sea results
614      - add no slip conditions for evp solver (off by default), lsr-version
615        may follow
616      - fix exchange for shear at Z-points (does not change lab_sea)
617      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
618        (to force the user to pick a time step since there is not "safe" way
619        of choosing it)
620      - add principal stress diagnostics
621      - rearrange fields for evp a little to avoid having to call a: too many
622        exchanges and b: exchanges for stress trensor components which we do
623        not have.
624      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
625        of evp, complete rewrite for lsr case (latter is does not yet work
626        in all cases)
627  o pkg/kpp: add code to have mixing in shelf ice caverns  o pkg/kpp: add code to have mixing in shelf ice caverns
628      - add myThid to all kpp routines (long overdue)
629    
630  checkpoint59  checkpoint59
631  o pkg/exf:  o pkg/exf:

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