/[MITgcm]/MITgcm/doc/tag-index
ViewVC logotype

Diff of /MITgcm/doc/tag-index

Parent Directory Parent Directory | Revision Log Revision Log | View Revision Graph Revision Graph | View Patch Patch

revision 1.463 by jmc, Tue Mar 1 16:54:32 2005 UTC revision 1.949 by mlosch, Thu Jan 31 09:58:41 2008 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/mypackage:
8      - add example of read/write pickup for state-var ;
9      - add entry points to the main code for state-vars diags & write-pickup.
10    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
11      transitions for useExfYearlyFields
12      - add new subroutine that determines the file to read from for
13        use*YearlyFields = .TRUE. and .FALSE.
14      - add a verification experiment to global_with_exf that tests
15        useExfYearlyFields with USE_EXF_INTERPOLATION defined
16    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
17      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
18      subroutines (which could be generated from a template, because they are
19      almost identical), for now they are included in obcs_prescribe_read.F for
20      simplicity
21    o pkg/exf:
22      - add a little more diagnostic to exf_interp_read (in analogy to
23        mds_read_field, can be turned off with debugLevel < debugLevA=1)
24      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
25        ugly but fast by unrolling short inner loops, inserting a unroll=8
26        directive in routine lagran, and splitting a loop and making do while the
27        outermost loop (the latter requires the intoduction of index arrays)
28    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
29    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
30      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
31    o verification/seaice_obcs: updated for restart test and latest options
32    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
33      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
34      for now this is only available for the C-grid code and also within
35      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
36    
37    checkpoint59m
38    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
39      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
40    o gad_som : fix flux output (& diagnostics) to have same units as other  
41      advection scheme fluxes (was previously multiplied by deltaT).  
42    o added verification/seaice_obcs both to test seaice open boundaries
43      and to provide an example matlab scrpt for generating them
44    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
45    o pkg/salt_plume: clean up salt_plume_frac.F to
46      remove redundancy in PlumeMethod 1 and 4
47    o pkg/kpp: added saltplume diagnostics
48    o pkg/obcs and pkg/seaice:
49      - do not set uice and vice to zero when OB*icefile are unspecified
50      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
51      - moved seaice tracer obcs after call to seaice_growth
52    o pkg/salt_plume: added various options for salt plume depth
53      criterion and for vertical distribution of the salt
54    
55    checkpoint59l
56    o pkg/ptracers: new version of ptracers pickup:
57      read meta file and write only fields which are needed to restart.
58      ( same logic as main pickup file ; also using pickupStrictlyMatch )
59    o pkg/seaice:
60      - add timescale for melting due to warm mixed layer as a means of
61        setting SEAICE_availHeatFrac more conveniently
62      - add a CPP-flag/runtime parameter check for flooding algorithm
63      - reformulated availHeat in seaice_growth.F to be independent of AREA
64    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
65      unit changes
66    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
67    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
68      SX vector computer.
69    o pkg/seaice:
70      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
71        seaice forcing fields can now be read only through pkg/exf
72      - removed some unused halos
73    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
74    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
75      or U/VICE from U/VWIND before computing U/VSTRESS
76    
77    checkpoint59k
78    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
79      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
80    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
81      all experiments pass when compile with un-initialised var. checking option.
82    o added pkg/salt_plume
83    o script to test restart (for now, in MITgcm_contrib/jmc_script)
84    o pkg/seaice: new read/write pickup version.
85      read meta file and write only fields which are needed to restart.
86      ( same logic as main pickup file ; also using pickupStrictlyMatch )
87    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
88    o lab_sea.hb87: modify the domain & update output.hb87.txt :
89      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
90      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
91      process. Fixed here by closing the domain at the Northern boundary.
92    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
93    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
94      a set of consecutive levels in/from a 3-D array.
95    o pkg/ptracers:
96      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
97      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
98    
99    checkpoint59j
100    o in pkgs: dic, obcs, offline, rbcs:
101      standard way to compute coeff. for time interpolation between 2 time reccords
102      which retains full precision (& make results less dependent on compiler).
103      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
104    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
105      packages instead of reading ice cover and wind speed separately
106    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
107     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
108      to allow to compile customized code before the update)
109    o cleaning-up:
110      - fix CPP instruction syntax in pkg/obcs
111      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
112        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
113      - fix some threads issue in IO parts.
114    o pkg/dic:
115      - add tons of "_d 0" (--> much better testreports !)
116       and then update outputs of tutorial_global_oce_biogeo
117    o pkg/mom_fluxform:
118      add a special version of momentum advection intended to conserve momentum
119      next to a bathymetry step or a coastline edge. (default = off = #undef)
120    o new read/write pickup version:
121      - for now, only implemented for main (mdsio) pickup file.
122      - write out only what is needed to restart; merge pickup_nh , pickup_ph
123        and main pickup together.
124      - read meta file; read only what is needed to restart; stop if a field
125        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
126        if it make sense (even if the restart is not perfect).
127      - if no meta file, assume that pickup to read corresponds exactly to
128        a pickup that would currently be written.
129      - read pickup written in the old format (until checkpoint59i) if it
130        recognizes an old meta file (no field-list).
131      - add a meta file in exp. which starts from a pickup: 2 cases:
132        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
133         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
134        b) a meta file describing the content of the associated pickup file
135         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
136    o pkg/mdsio & pkg/rw:
137      - new routine to read a meta file ; new set of routine to read
138        Multiple-fields file (with meta file).
139    o added open boundary conditions capability for seaice
140        HSNOW, HSALT, UICE, and VICE
141    
142    checkpoint59i
143    o adjoint:
144      * fix multiDimAdvection adjoint
145        (partial recomputation problem by TAF for fVerT(:,:,kDown)
146        and comlev1 size definition (maxpass vs. max. number of tracers)
147      * verification/global_ocean.90x45x15 adjoint now tests
148        NLFS and multiDimAdvection using DST3 (=30)
149      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
150    o pkg/kpp: add "_d 0" to real constant (if missing);
151      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
152      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
153    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
154      for internal parameters related to restart process (formerly from PARAMS.h)
155      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
156    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
157      as argument. (only atm2d & obcs write_pickup have not yet been updated)
158    o pkg/monitor:
159      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
160      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
161      - account for deep Atmosphere factor and density factor (anelastic)
162    o added open boundary conditions capability for seaice HEFF and AREA
163    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
164      thermodynamics
165      - requires a little reorganization, which affects the testreport results
166        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
167        so that now the conservative form is tested
168      - add a few comments
169    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
170    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
171    o add new diagnostics to seaice: advective, diffusive fluxes (only for
172      multidim-advection, for scheme 2 they are not filled) and transports,
173      thermodynamic growth rates
174    o change units of EmPmR (inside the code, + within coupling interface)
175      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
176      Affects results @ truncation level (cg2d match) and update output of
177       experiments: lab_sea(6), global_ocean.90x40x15(10),
178      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
179      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
180      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
181      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
182    
183    checkpoint59h
184    o pkg/exf:
185      - improve vectorization by moving if-statement out of loops in
186        exf_mapfields, exf_radiation
187      - exf_bulkformulae.F: introduce 2D fields and vectorize code
188    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
189    o testreport:
190      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
191        monitor & update offline_exf_seaice exp. output.
192      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
193    o pkg/seaice:
194      - bug fix in the evp solver: boundary conditions were affected be
195        masking of zMax/zMin (changes results)
196      - minor bug fix in boundary conditions in seaice_calc_strainrates
197        (changes results for no_slip)
198      - seaice_lsr.F: make interpolation of eta dependent on boundaries
199      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
200      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
201        stress formulation and no-slip boundary conditions
202    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
203      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
204    o pkg/seaice: a first HSALT time stepping equation has been checked in
205    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
206      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
207      without requiring DO-IF statements
208    o pkg/thsice:
209      use continuous power-law function for partition of energy between lateral
210      melting/freezing and thinning/thickening ; old code using step function
211      still available with #undef THSICE_FRACEN_POWERLAW
212      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
213    o testreport: change AD testing : check against results/output_adm.txt
214      using same scripts as for forward test.
215    
216    checkpoint59g
217    o adjoint testing: in preparation for changing testreport:
218      - output format: cost and grad written on separated lines
219      - ad output results in directory "results" (instead of "results_ad")
220    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
221    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
222    o pkg/ecco: allow user defined cost function contributions
223    o testreport:
224      Allow to choose (per experiment) the list of tested output variables
225       and the main variable (used to issue a pass/FAIL ) ;
226      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
227      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
228      Also modify printing of summary:
229       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
230       b) echo the list of tested variables in the individual summary.txt of
231          each experiment.
232    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
233      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
234      (but still depend on the tile decompostion of the domain).
235    o pkg/seaice: change a discretization detail to make the B-grid code
236      "more symmetric". This change is likely to remove all "ridges/leads" that
237      where quasi-aligned with the grid in B-grid solutions. It may also be
238      the solution to the stress coupling issues with the B-grid.
239    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
240      remove .cvsignore from input dir. (since testreport no longer run here).
241    o pkg/thsice:
242     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
243     - fix reshaping of sea-ice just after advection:
244       melt all the ice only if ice-volume is too small.
245     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
246       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
247     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
248    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
249      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
250    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
251      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
252      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
253      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
254      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
255      -> update output.txt
256    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
257     this affects truncation error: -> update output.txt of exp:
258      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
259      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
260    
261    checkpoint59f
262    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
263    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
264      a bounded range (in forward mode)
265    o pkg/ecco, ctrl, autodiff and mom_common:
266     internal parameter controls, completements of implementations
267    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
268    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
269      (not seem any difference in testing results).
270    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
271       at face corners.
272    o pkg/generic_advdiff:
273     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
274      loop range indices for computing vertical advection tendency
275      and do the calculation in the interior only (no overlap) ;
276      for now, only implemented for SOM advection (to save CPU time).
277     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
278    o exch2 adjoint
279      First set of changes:
280      - add exch2 hand-written adjoint templates
281      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
282        This will require cleanup in pkg/autodiff/*.F
283        (changed routines currently kept separate in verif. code/)
284      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
285        that used to hide exch2 or cubed-sphere specific code
286        (commented via 'cph-exch2')
287    o pkg/seaice
288      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
289    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
290       output of global_ocean.cs32x15.thsice .
291    
292    checkpoint59e
293    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
294      for B-grid vector (not yet tested) and C-grid vector (<- only used
295      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
296    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
297      (#ifdef ALLOW_SALT_PLUME)
298    o gather_2d/scatter_2d: removed halo regions
299    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
300      scheme and the corresponding test case (under front_relax dir). For now,
301      only available with Skew-flux form and not yet tested in realistic set-up.
302      adjoint: store directives updated, but gradient checks deteriorated,
303      so maybe GM/Redi adjoint is now broken.
304    o seaice adjoint
305      * add AREA, HEFF, HSNOW as control variable
306        (should not change lab_sea results)
307      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
308    o pkg/seaice:
309      * added computation of saltFlux in seaice_growth;
310        For time being, sea ice salinity is assumed constant
311        contribution of snow flooding to freshening of sea ice is neglected.
312        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
313        defaults to 0.0 in order to maintain backward compatibility.
314        Typical values for SEAICE_salinity are 4 to 10 g/kg.
315      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
316      * added SEAICE_availHeatFrac, which specifies fraction of surface level
317        heat content used to melt or grow ice
318      * commented out cap of HICE: it helps keep ice thinner
319      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
320      * applied OBCS T/S mask to HEFFM sea ice mask
321    
322    checkpoint59d
323    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
324     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
325     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
326    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
327     and change default value of parameter "GM_Small_Number";
328     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
329       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
330       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
331    o pkg/ecco: cost function when applying pkg/smooth to controls
332    o pkg/ctrl: add forcingPrecond run time parameter
333    o pkg/seaice:
334     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
335     - fix bug in metric terms of u-equation in LSR solver (implicit part),
336       changes verification/lab_sea
337     - rearrange implicit part of u-equation in LSR solver to make it easier to
338       read, understand, and debug. This causes changes at the truncation level.
339     - fix (serious) bug in the boundary conditions (sign error in the implicit
340       part) of the LSR solver. Changes all LSR results.
341     - fixed problem with HSNOW initialization to avoid thick snow when AREA
342       is initilized with small values - does not change lab_sea results.
343     - added HsnowFile initialization capability
344    o pkg/smooth: addition to model/src and pkg/ctrl so allow
345     initialization of pkg/smooth and application to control vector
346    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
347    o dependencies: pkg/profiles requires pkg/cal
348    o pkg/profiles:
349     - added option ALLOW_PROFILES_GENERICGRID
350         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
351         that interpolation information (grid points and coefficients) is provided
352         within the netcdf input files.
353         -> sample matlab scripts can be found in MITgcm_contrib/gael
354         that allow you to prepare netcdf input files.
355     - also modified: cleaner include statements, cleaner error print statements,
356       cleaner stops when error, and more tests of the netcdf input files consistency.
357    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
358    o pkg/seaice:
359     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
360       requires a new routine: seaice_diagnostics_fill.F
361     - make sure that seaice does not move if not forced (pressure replacement
362       method, Hibler and Ip, 1995), changes results
363     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
364     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
365       It is turned off by default (=-1.), because it changes the results.
366     - make it possible to read AREA from a file, too.
367    
368    checkpoint59c
369    o add S/R and diagnostics for oceanic mixed-layer depth
370    o move GMRedi call after all vertical mixing schemes (including KPP)
371    o pkg/thsice:
372     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
373      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
374    o pkg/obcs:
375     - bug fix for balance code
376    o pkg/seaice:
377      - allow values of SEAICE_elasticParm > 1
378      - add new parameter SEAICE_evpTauRelax as an alternative
379        to SEAICE_elasticParm
380      - make lsr boundary conditions free slip (by default), changes result
381      - add code for no slip boundary conditions for lsr
382      - set minimum of zeta to zero (and not 4e8) (changes results)
383      - add a cap on AREA after advecting AREA if seaice_growth is not called
384    o change calculation of Visbeck K:
385      - no longer depend on tapering scheme; instead, compute slope (limited
386        by GM_maxSlope). this is equivalent to what was comuted before with
387        clipping or linear tappering.
388      - fix vertical averaging (wrong by 1/2 level)
389      - leave the old version (but will not be maintained) within
390        #ifdef OLD_VISBECK_CALC / #endif
391      - update output of exp. ideal_2D_oce
392    o change error catch in calc_r_star to improve vectorization
393    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
394      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
395    o adjoint:
396      Re-organized adjoint checkpointing according to Matt Mazloff
397      (but with modifs/completions/cleanups)
398      Storing is now bundled into large arrays to optimized I/O
399      (and second step in cleanup of the_main_loop)
400    
401    checkpoint59b
402    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
403      - export/import (between ocean & coupler) fields needed for ocean DIC.
404    o pkg/seaice:
405      - get rid of three more exchanges seaice_calc_viscosities (required
406        different loop boundaries in seaice_lsr and seaice_ocean_stress)
407      - bug fix in seaice_ocean_stress (update of lab_sea required)
408      - reduce loop boundaries to necessary minimum also in seaice_evp
409      - go back to the old way of computing deltaC/Z as the adjoint likes that
410        better
411    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
412      passive tracer to an Age Tracer) + update output.txt
413    o pkg/exf:
414      - implement A-grid / C-grid selection for wind-stress input files.
415      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
416      for now, in exf_bulk_largeyeager04.F only :
417      - change implementation for case where windspeed + 2. components wind-stress
418        are read-in. AND use rhoConstFresh to convert evap.
419    o pkg/seaice:
420      - use correct EXCH_UV for wind-forcing (on A-grid).
421      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
422        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
423    o pkg/exf:
424      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
425      EXF_INTERPOLATION:
426      - merge global_with_exf/code version of exf_interp_read.F
427        to the main code ;
428      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
429        reading the file ; Important: This options needs to be defined to recover
430        previous code.
431        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
432      - no longer loose real*8 precision along the way when using exf_iprec=64.
433    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
434      - change discretisation of evp-solver in order to avoid another exchange
435        (changes lab_sea) and clean up a little
436      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
437        help the adjoint (this also changes the results slightly)
438      - add a few "_d 0" where they had been missing in seaice_evp.F
439      - cleaning up: remove unused seaice_calc_rhs.F
440    o pkg/exf: some cleaning-up:
441      - change various "constants" into runtime parameters
442      - cleaned-up Large&Yeager04 routine which should eventually
443        replace exf_bulkformulae.F (changed names of S/R and CPP)
444        and merged various ALLOW_ATM_WIND options
445     only used with thsice pkg (in thsice_get_exf.F):
446      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
447        which are used when useStabilityFct_overIce=TRUE (= the default)
448      - change default values of ice & snow emissivity and scale downward LW
449        by ice & snow emissivity.
450    o pkg/thsice:
451     fix few little problems, in thsice_calc_thickn.F:
452      - growth vertically (and not laterally) if iceFrac == iceMaskMax
453      - melt only laterally if hIce < hThinIce (as the comments say)
454      and in thsice_extend.F:
455      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
456      - start to form ice as soon as the minimum ice-volume is reachable.
457     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
458      and cpl_aim+ocn
459    o pkg/kpp
460     - move computation of surface related input fields to KPP into a new
461       subroutine kpp_forcing_surf.F
462     - remove wrong (within bi,bj loops) EXCH calls.
463     - little cleaning (add argument myThid in last position, cvs header ...)
464     - for now, fix conservation problem by exchanging KPPviscAz (may not
465       be the best fix)
466    o pkg/seaice
467     - check for inconsistent evp parameter/cpp-flag combination
468     - remove leftover errIO flat for obsolete name list error handling
469    o OpenAD
470     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
471    
472    checkpoint59a
473    o pkg/seaice: some parameter clarifications and a little bit of clean up
474    o pkg/thsice: rename run-time parameters:
475       himin       -> hIceMin
476       himin0      -> hThinIce
477       hihig       -> hThickIce
478       i0          -> i0swFrac
479       transCoef   -> bMeltCoef
480       frac_energy -> fracMelting
481      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
482       with default values (for now) that do not change the results.
483      remove old version of thsice vars advection in pkg/seaice.
484    o in FFIELDS.h:
485      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
486      - make pLoad & sIceLoad always available (but still only used if
487         ATMOSPHERIC_LOADING is #define).
488    o pkg/kpp: replaced _KPP_RL with _RL
489    o bug fixes for vertical diffusivity computations when both KPP and
490        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
491        are no longer updating the vertical diffusivity array
492        (passed as argument) but are (re-) setting those arrays.
493    o pkg/seaice: fix bug in evp solver, while doing that
494      - change (improve?) discretization of stress computations for both
495        cgrid-lsr and evp solver
496      - add a new routine to compute strain rates
497      - the above changes lab_sea results
498      - add no slip conditions for evp solver (off by default), lsr-version
499        may follow
500      - fix exchange for shear at Z-points (does not change lab_sea)
501      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
502        (to force the user to pick a time step since there is not "safe" way
503        of choosing it)
504      - add principal stress diagnostics
505      - rearrange fields for evp a little to avoid having to call a: too many
506        exchanges and b: exchanges for stress trensor components which we do
507        not have.
508      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
509        of evp, complete rewrite for lsr case (latter is does not yet work
510        in all cases)
511    o pkg/kpp: add code to have mixing in shelf ice caverns
512      - add myThid to all kpp routines (long overdue)
513    
514    checkpoint59
515    o pkg/exf:
516      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
517        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
518      - move exf header files from lower_case.h to UPPER_CASE.h ;
519        add missing cvs Header & Name
520      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
521      - add namelist param. selectStressGridPosition, exf_monFreq
522      - retire many _CLIM routines, and remove data.exf_clim
523        + params moved to data.exf
524        + climsst, climsss now handled by exf_set_gen, i.e.
525          climss?period=0 refers to constant field,
526          climss?period=-12 to monthly forcing
527      - split up namelists in data.exf
528    o pkg/seaice:
529      - remove seaice_exch and seaice_exch_uv
530      - remove superfluous exchange of theta
531      - add myThid to seaice_budget_ocean/ice
532      - add new interface for atmospheric wind forcing (C-grid only)
533        + new routine
534        + two new field (taux, tauy for stress over ice)
535        + removed one global field (DAIRN) for C-grid case only
536    o pkg/thsise
537      - 2nd set of modifs for thsice adjoint in conjunction with exf
538    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
539    
540    checkpoint58y_post
541    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
542      vertical diffusivity, similar to that in MOM4; turned on using
543      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
544      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
545    o Added capability for 3D specification of background vertical diffusion
546      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
547      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
548      "data" file that contains the 3D vertical diffusivity coefficients.
549    o ice dynamics (pkg/seaice) with thsice thermodynamics:
550      - add code within pkg thsice to advect & diffuse sea-ice fields
551      similar to (and will replace) what has been added in  seaice_advdiff.F,
552      but: - conserving Mass, Heat & Salt.
553           - better when using non-linear advection scheme (not yet fully tested)
554           - can also be used in atmospheric set-up (for now, only the diffusion).
555    
556    checkpoint58x_post
557    o IO option for global-file compact format:
558      - add options when generating topology (utils/exch2/matlab-topology-generator)
559      - add I/O capability (pkg/mdsio).
560      - adapt utils/matlab/rdmds.m to read this format.
561      for now long-line format not yet supported by pkg/mdsio (& exch2).
562    o shelfice: add a few diagnostics
563    
564    checkpoint58w_post
565    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
566      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
567      (and replace horiVertRatio in NH code).
568      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
569                         and tutorial_plume_on_slope (sensitive to truncation)
570    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
571      directly to drive seaice model (C-grid only)
572    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
573     - reintroduce computation of wind from stress,
574     - compute tau (in exf_bulkformulae.F) from windstress averaged to
575       mass points to avoid tau = 0
576     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
577    o rdmnc.m: make it work with "global" files created with gluemnc
578    o rdmnc.m : some improvements in dealing with singleton dimension
579      (tested on all testreport mnc output files).
580    o genmake2: disable pkg/profiles if netcdf test fails.
581    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
582    o move call to cal_readparms up to make calendar parameters/variable available
583      to all packages
584    
585    checkpoint58v_post
586    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
587      useDynP_inEos_Zc tested.
588    o pkg/exf: changes to properly interpolate/mask/scale initial fields
589    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
590      and portions thereof.  See read_cs.txt for description and examples.
591    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
592      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
593      following the great-circle arc between those 2 points.
594    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
595      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
596    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
597     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
598     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
599     - still needs work (not working with some options ; efficiency to improve)
600       and serious testing.
601     - use this scheme for temperature & salinity in 2 advection test exp.:
602       advect_xy & advect_xz, respectively.
603    
604    checkpoint58u_post
605    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
606    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
607    o testreport: add option "-skipdir" to skip some test.
608    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
609      momentum calculation.
610    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
611    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
612      remove checkpoint.F and the_correction_step.F (no longer used);
613      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
614    o add option (linFSConserveTr) to correct for tracer source/sink due to
615      Linear Free surface
616    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
617    o pkg/thsice: fix reading mnc-pickups
618    
619    checkpoint58t_post
620    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
621    o pkg/mdsio:
622     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
623       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
624       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
625     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
626     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
627       either MDS_READ_FIELD or MDS_WRITE_FIELD )
628     - new S/R (to replace MDSWRITEMETA), which allows to write more
629       informations (variable names, time ...) to meta files.
630     - modify rdmds.m to give back the meta file content.
631    o pkg/diagnostics: change vertical interpolation to be safer, and more
632       flexible (define p-levels to interpolate to in data.diagnostics);
633      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
634       diagnostic pointer.
635    o pkg/seaice: more cleaning up of seaice_growth, added many comments
636    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
637    o fix multi-category seaice:
638     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
639       SEAICE_MULTICATEGORY
640     - fix short wave heat flux
641    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
642       and allow to use EVP solver. Change forward lab_sea: test both EVP
643       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
644    o Initial check-in of lab_sea adjoint
645      (very similar to natl_box_adjoint/code_seaice)
646      * used C-grid and EVP solver
647      * used KPP, GM/Redi
648      * uses inAdExact=.TRUE.
649      * gradient checks fail for both ADM and TLM
650        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
651        f.d. gradients actually seem more problematic than ADM, TLM gradients;
652        issue is related to forward mismatch between g77 an ifort
653    o pkg/seaice: overhaul of thermodynamics
654     - growth.F and groatb.F are replaced by new routine seaice_growth.F
655     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
656     - move a few global fields out of SEAICE.h into seaice_growth.F and
657       make them 2D (FICE/QNETO/ ...)
658     - remove FO (it is the same as QNETO)
659     - introduce a few local fields to avoid modifying external fields such
660       as atemp, etc.
661    
662    checkpoint58s_post
663    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
664      changed exf_set_gen.F so that
665        genperiod=0 means input file is one time-constant field and
666        genperiod=-12 means input file contains 12 monthly means
667    o CG2D: use pre-computed solver main-diagonal (stored in common block);
668      this affects truncation error ; generate new output file for exp. which
669      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
670        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
671        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
672        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
673        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
674        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
675    o start implementation of deep-atmosphere and anelastic formulation
676    o verification: remove 2nd copy of input files and use script "prepare_run"
677      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
678    o mom_common/vecinv/fluxform: fix a few initialisation isssues
679    o profiles: fix for multithreaded case
680    
681    o diagnostics: rename few diags:
682      s/'PRESSURE'/'RCENTER '/g
683      s/'TICE    '/'oceFreez'/g
684      s/'TAUX    '/'oceTAUX '/g
685      s/'TAUY    '/'oceTAUY '/g
686      s/'SWFLUX  '/'oceQsw  '/g
687      s/DIFx/DFxE/g
688      s/DIFy/DFyE/g
689      and add few ocean-forcing diagnostics:
690      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
691    o modifications to pkg/seaice/growth.F and budget.F, which change results of
692      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
693      as actual snow thickness.  It now refers everywhere to effective snow
694      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
695    
696    checkpoint58r_post
697    o modifications to pkg/seaice/growth.F, which change results of
698      lab_sea experiment: fixes pertain to melting snow over open water, to
699      masking EVAP under sea ice, and to using the correct AREA variable for
700      computations of EVAP, PRECIP, HSNOW, and GHEFF
701    o add ability to read bathy, salt, and theta using MNC (off by def)
702    o add flooding algorithm and advection of HSNOW for pkg/seaice;
703      both are turned off by default and do no change any results
704    o seaice advection with pkg/thsice: a step toward the use of non-linear
705      advection scheme, but #ifdef or commented out for now (requires more EXCH).
706    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
707      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
708      in natl_box (affects results @ truncation level: update output.txt)
709    o multi-threading and IO:
710      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
711      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
712        (needed to work with SingleCpuIO): tested in all verif. exp.
713    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
714      affects the results (but none of the verification test uses this scheme).
715    o Adding some pkg/diagnostics capability to pkg/seaice
716      (will certainly be subject to changes)
717    o ctrl: adding new control variables:
718      lwflux, lwdown, evap, snowprecip, apressure, runoff
719    
720    checkpoint58q_post
721    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
722      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
723      high_res_cube configuration by 4% on Columbia.
724    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
725      add (in global_with_exf/code) a version of EXF_INTERP_READ without
726      dynamical allocation (seems to work in multi-threaded).
727    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
728      single CPU io) so that TAF does not have to see EESUPPORT.h
729    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
730    
731    checkpoint58p_post
732    o obcs: stop if obcs is used with useCDscheme = .true.
733    o shelfice:
734     - fix a sign error so that no slip at shelfice interface works
735     - remove stop for combination non-hydrostatic code and shelfice. That does
736       not mean, that the results are correct, but at least they are numerically
737       stable
738    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
739    o added adjoint exch routined for all exch*3d* routines
740      and updated flow directives
741    
742    checkpoint58o_post
743    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
744      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
745    o change controling S/R for writing pickup file (new S/R do_write_pickup)
746      and clean-up reading/writing of pickup files.
747    o fix local version of read/write pickup (NH part) in rotating_tank/code
748    o simplify EXCH interface:
749     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
750     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
751    o added the regrid package
752    o shelfice:
753     - add a simple boundary layer scheme to reduce noise
754     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
755    
756    checkpoint58n_post
757    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
758       local variable (not in common block).
759    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
760      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
761      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
762        to work with SingleCpuIO.
763    o add "_d 0" to real constant of pkg/cfc subroutines ;
764       update exp. cfc_exemple & tutorial_cfc_offline output files.
765    o multi-threading and IO:
766      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
767        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
768      - barrier before and after reading.
769      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
770      - avoid using MDS_WRITELOCAL for LAND pkg output.
771      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
772        common-block variables ; Allows multi-threading with master-thread IO.
773    o change default MAX_NO_THREADS from 32 to 4 ;
774      and stop cleanly when MAX_NO_THREADS is too small.
775    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
776    
777    checkpoint58m_post
778    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
779       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
780    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
781       keep global_ocean.90x40x15 (for AD testing) with former secondary test
782       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
783    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
784        add MITgcm_tutorials (= code + all the tutorials)
785    o ecco, option to compute cost for total ssh (mean+anom)
786    o consistent with addition of ptracer and ssh in pkg/profiles
787    o profiles: adding ptracer and ssh
788    o testreport: change multi-test output-file name
789      (from output.txt.{name} to output.{name}.txt)
790    o profiles: now ok for mutli-tiles case
791    o seaice: add 4 parameters for different advection schemes for area,
792      (effective) seaice thickness, enthalphy, and snow height. Their default
793      is the standard parameter SEAICEadvScheme
794    o calc_gw:
795     - add cosFacU in zonal viscous flux (harmonic.visc.).
796     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
797       of tutorial_plume_on_slope.
798    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
799    o calc_gw: true flux-form, account for horizontal grid spacing.
800      update rotating_tank results, but not plume_on_slope (affected at
801      truncation level, 11 digits).
802    
803    checkpoint58l_post
804    o calc_gw:
805     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
806     - remove side-drag for now (need to fix it); update plume_on_slope results.
807     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
808    o commit code to make SST/SSS weights spatially variable
809      (based on either variable in-situ or variable initial T/S weights)
810    o pkg/ecco:
811      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
812        now based on horizontally varying weights wthetaLev, wsaltLev
813      * cost_averagesflags now returns year indices in addition to day, month
814      * sflux balance is performed on annual basis
815        (sflxumm, sfluxmm2, bal_sfluxmm)
816      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
817        including separate counting and multipliers
818    o pkg/rbcs
819      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
820    
821    checkpoint58k_post
822    o testreport:
823     - always build in dir. "build" (if not there, mkdir build instead of building
824       & running in input)
825     - run in dir run (if it exists), in build otherwise.
826     - call prepare_run (if input/prepare_run exists)
827     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
828    o pkg/exf modifications to interpolation and rotation routines for more
829       reasonable treatment of North Pole singularity: for tracers North Pole
830       value is set to northernmost zonal-mean value, for zonal velocity it is
831       set to zero, and for meridional velocity it is set to northernmost value.
832    o pkg/exf/exf_check_range.F
833     - add tile index to diagnostics and move stop statement to the very
834       end of the routine.
835    o pkg/diagnostics: (diagnostics_main_init.F)
836      define title of isomorphic variables according to the current config.
837    o pkg/thsice with pkg/seaice dynamics:
838    - fix domain of computation (interior only, required for exf) and do exchanges
839    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
840    o towards a standard way of dealing with multi-threading in MONITOR
841      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
842    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
843       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
844    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
845    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
846    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
847       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
848    o tracer advection:
849     - clean-up and simplify calc_common_factors.F
850     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
851       advection subroutine (but still not used within DST advection S/R)
852    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
853    
854    checkpoint58j_post
855    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
856      from file (collects calls previously in FORWARD_STEP)
857    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
858    o adjoint store dir. adjusted accordingly
859    o genmake2
860      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
861    
862    checkpoint58i_post
863    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
864      on wind stress (SEAICEstressFactor defaults to 1.)
865    o Total number of Timers is finite (<=40): comment out 2 non-essential one
866      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
867    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
868      on CS-grid: no longer loosing mass.
869    o exf & curvilinear-grid: no longer modify longitude xC & xG.
870    o pkg/ggl90: fix sloppy output and fix a bug
871    o pkg/seaice: added SEAICEuseEVPpickup parameter
872      - Set to false in order to start EVP solver with
873        non-EVP pickup files when using SEAICEuseEVP
874      - fix sign error in diffusion in seaice_calc_rhs
875    
876    checkpoint58h_post
877    * Modifications for bottom topography control
878      o replace hFacC by _hFacC at various places
879      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
880      o add non-self-adjoint cg2d_nsa
881      o update autodiff support routines
882      o re-initialise hfac after ctrl_depth_ini
883      o works for 5x5 box, doesnt work for global_ocean.90x40x15
884    * Adding verification for 5x5 box (4-layer) bottom topography control
885    
886    checkpoint58g_post
887    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
888       used for mean seasonal cycle, mean diurnal cycle); add an example
889       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
890    o pkg/ggl90:
891      - add parameter (minimum surface kinetic energy)
892      - fix bug (avoiding division by zero)
893    o couple pkg/thsice to pkg/seaice:
894      - modify advection in seaice to accomodate new scalar fields to be advected
895      - only muliDimAdection scheme work with seaice/thsice
896      - mapping of thsice-variables to seaice-variables, back and forth
897      - does not break the verification experiments, but does not give the
898        desired results either
899    o pkg/seaice
900      - make (default) second order advection a bit less confusing?
901    
902    checkpoint58f_post
903    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
904      to pkg/seaice):
905      - new routines thsice_map_exf and thsice_get_exf provide the interface
906      - add an additional formal parameter to thsice_solve4temp
907    o pkg/exf:
908      - add new fields wspeed, snowprecip (to be able to couple to thsice)
909      - correct Stefan-Boltzmann constant
910      - new parameter for longwave surface emittance
911      - separate some stuff from exf_bulkformulae into new routines  
912        exf_radiation, exf_wind
913      - add new parameters and constants: longwave emissivity for ocean, ice
914        and snow, evaporation parameters over ice
915      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
916        either wind from stress or stress from wind
917    o pkg/thSIce:
918    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
919    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
920       and THSICE_CALC_THICKN
921    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
922    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
923      to make debugging easier.
924    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
925    o pkg/bulk_force:
926      - clean-up comments and parameters ;
927      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
928    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
929      generate new output for test-experiment: aim.5l_cs.thSI
930    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
931      testreport accordingly
932    
933    checkpoint58e_post
934    o SEAICE_CGRID adjoint done
935    o R_STAR adjoint implemented.
936      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
937      * need to sort out init. of h0facc, etc.
938    o Make pkg/profile fully independent of ecco,cost, etc. stuff
939      to be able to use it in pure forward.
940    
941    checkpoint58d_post
942    o upgrade simple test-experiment to tutorial example:
943     step.1: duplicate the experiment and (step.2) will remove the old copy.
944      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
945      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
946      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
947      tutorial_global_oce_biogeo    <- copy of dic_example
948      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
949      tutorial_plume_on_slope       <- copy of plume_on_slope
950      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
951      tutorial_global_oce_optim     <- empty for now (David ?)
952      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
953     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
954    o correct a sign problem in cost_scat.F
955    o obcs and ptracers: fix boundary conditions for advections schemes
956      with larger stencil
957    o thsice adjoint: start
958    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
959      completeness
960    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
961      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
962    o ptracers adjoint:
963      * avoid extensive recomputatations
964      * fix missing re-init. of gptr (missed by TAF)
965    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
966      me to turn off the excessive output to STDOUT that this package produces
967    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
968      and add those terms in Vector-Invariant formulation.
969    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
970      if the control period (xx_hfluxperiod etc) is 0
971    o in profiles pkg, clean routines and fix details
972    o in ecco pkg, reading ssh data:
973      fix problem in case the model does not start at iter0=0
974    o fix mnc-pickup/restart for ptracers
975    o new package prifiles:
976      code to compute profile-based cost by Gael Forget
977      (modifs in ecco, ctrl, autodiff)
978    o Benign bug fix in initialization (spotted by M. Mazloff) of
979      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
980    
981    checkpoint58c_post
982    o adjoint: finish NLFS adjoint and provide reference output in
983      verification/global_ocean.90x40x15/results_ad_nlfs
984    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
985      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
986      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
987      with SEAICE_CGRID defined.
988    o move calendarDumps from "data" to "data.cal" and clean-up the code
989      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
990    o add useEXF & useCAL flags (for now, set in hard-coded way)
991    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
992      (were missing in NH mode, and wrong in quasihydrostatic mode).
993      waiting for Chris updated version of calc_gw to add those CALLs.
994    o fix bug in quasihydrostatic S/R ;
995      add a test for this option: global_ocean.90x40x15.qshyd
996    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
997      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
998    o add on/off flag useOffLine for package OFFLINE
999    o seaice:
1000      - modify advection so that it works also on the C-grid
1001      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1002        problem in multi-tile runs with C-grid
1003      - add flags for clipping ice velocities and/or masking solver forcing
1004      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1005        C-grid solver
1006      - added a few comments to seaice_diffusion.F
1007      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1008        are now exclusive)
1009      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1010        required re-ordering the code a little:
1011       + make DAIRN global variable (defined in SEAICE)
1012       + move computation of the viscosities eta and zeta into a new separate
1013         routine (because I need to recompute them in seaice_ocean_stress.F)
1014    
1015    checkpoint58b_post
1016    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1017      update output.txt of exp. aim.5l_cs.thSI
1018    o various mnc cleanups and improvements:
1019      + shrink lookup tables by factor of ~4
1020      + better error reporting when running out of lookup space
1021      + able to handle longer path/file names (up to 500 chars)
1022    o adjoint:
1023      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1024      - TBD: "hidden" mom_vecinv recomp. in dynamics
1025    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1026     (allow to differentiate between forcing components using new integer flags:
1027      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1028     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1029    o ecco
1030      - enable trend removal from SSH anomaly obs.
1031    o adjoint
1032      - a fix for PmEpR when #undef EXACT_CONSERV
1033      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1034      - try to fix "hidden" recomp. in forward_step for NLFS
1035        (NLFS seems broken sometimes after I checked it in)
1036    o seaice:
1037     - add c-grid version of the dynamic solver:
1038       + three new routines that are the c-grid substitute lsr, dynsolver
1039         and ostres
1040       + put a few fields that were local to dynsolver into global common
1041         blocks, so that I can move the computation of stresses etc into
1042         seaice_lsr (saves coding but may break the adjoint).
1043     - replace more hardwired parameters by runtime parameters
1044     - add ice masks that mask the rhs of the implicit solvers where there
1045       is no ice (commented out in seaice_dynsolver, because i am not sure
1046       if this works properly), eventually this should replace the clipping
1047       of ice velocities in seaice_dynsolver to +/-40cm/s.
1048    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1049      include it only where its needed
1050    o move balancing of fluxes before the call of external_forcing_surf
1051    o seaice:
1052      - correct units of turning angles (now they are really in degrees)
1053      - move computation of GWATX/Y out of main routine into dynsolver
1054      - initialize GWATX/Y in seaice_init
1055    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1056      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1057    o seaice: add runtime flags for turning angles (default to zero)
1058    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1059      and trend from exf forcing and ctrl control adjustments
1060    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1061      (since checkpoint57x_post)
1062    o change the default rotation period to 86164.s = the Earth rotation
1063    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1064      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1065    o seaice advection: add code for choosing between the default (2nd order
1066      central differences) and multiDim advection schemes provided by
1067      pkg/generic_advdiff
1068    o seaice:
1069      - removed all references to SEAICE_GRID.h fields from
1070        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1071        (cubed-sphere configuration will change a little)
1072      - grid computations in seaice_init are obsolete now.
1073      - cleaned up code a little so that is easier to read (hopefully).
1074      - added new (better?) discretizations of default advection and diffusion
1075        (turn on with SEAICEuseFluxForm)
1076      - replace 1 in 3d global fields by kSurface in growth.F
1077      
1078    checkpoint58a_post
1079    o seaice:
1080      - bug fix in advect.F
1081    o shelfice:
1082      - separate shelfice load anomaly from pload (breaks with time
1083        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1084        Its default is 0., but it may be computed more cleverly from (unknown)
1085        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1086        done offline. A good approximation of the pressure load anomaly is
1087        necessary to avoid large initial adjustment processes underneath
1088        deep-reaching shelfice.
1089      - small fix in ISOMIP shelfice_thermodynamics
1090      - add more sophisticated thermodynamics of Hellmer (1989), this is
1091        now the default
1092      - give a few constants more intuitive names
1093    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1094      if bulk formulae are used in long integration (especially EmPmR). Turn
1095      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1096      if balancePrintMean, the imbalance that is substracted is printed to
1097      STDOUT.
1098    o fix bug (typo) in obcs_apply_eta.F
1099    o add a new package shelfice which enables us to model the circulation
1100      underneath shelf-ice with draughts of hundreds of meters.
1101     - works
1102     - to do: + include improved thermodynamics
1103              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1104                instead of new field kTopC
1105              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1106                instead of new field R_shelfIce and new code in ini_depth.F
1107                and ini_mask_etc.F?
1108              + adjust vertical mixing schemes?
1109    o seaice pkg:
1110     - add a cpp-flag to include a simple formula for a salinity dependent
1111       freezing point of sea water at the surface
1112     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1113       meridional stresses are now different (and hopefully correct)
1114    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1115       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1116       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1117    o pkg/diagnostics: add options and parameters for regional-statistics
1118       diagnostics ; define regions by reading a region-mask from a file
1119       (might add other options later)
1120    o pkg/bulk_force:
1121     - add option and parameters to use AIM surface-flux formulae.
1122     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1123       others forcing fields (defined in PARM05, parameter file "data") are loaded
1124       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1125     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1126     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1127     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1128       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1129     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1130    
1131    checkpoint58
1132    o add "--embed-source" option to genmake2 which, when the supporting
1133      tools can be compiled (as determined by genmake2) will turn on the
1134      embed_files package which then embeds the entire MITgcm source code
1135      (*.[fFhc] + Makefile) used for the build within the executable
1136      - requested by CNH but off by default
1137      - adds a paltry <9MB to the mitgcmuv executable in most cases
1138      - only writes the output when useEMBEDSRC in eedata is true
1139    o clean up 3-dim. relaxation codes:
1140      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1141      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1142      * Thanks to Tom Haine for testing!
1143    
1144    checkpoint57z_post
1145    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1146      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1147    o fix the pickup behavior for obcs in combination with ptracers
1148    o fix a bug in ptracers_external_fields_load
1149    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1150      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1151    o transfered surface NH pressure to eta field (if exactConserv).
1152    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1153         and update lab_sea output.txt file.
1154    o completing 3-dim. relaxation code: additional term
1155         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1156      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1157      * At compile time, in "EXF_OPTIONS.h" set
1158          #define  ALLOW_CLIMTEMP_RELAXATION
1159          #define  ALLOW_CLIMSALT_RELAXATION
1160      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1161          tauThetaClimRelax3Dim = 15552000.0,
1162          tauSaltClimRelax3Dim  = 15552000.0,
1163      * 3 cases:
1164          1) Use a constant-in-time 3-dim. field
1165          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1166          3) Real-time relax. to time-evolving prescribed field
1167    o Adding Laplacian-type smoothness constraint on
1168      initial and boundary (forcing) controls (ic, bc)
1169      * enable at compile-time via
1170        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1171      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1172      * Absolute scale somewhat unclear so far
1173      * no area weighting was included since no other cost term does so far
1174    
1175    checkpoint57y_post
1176    First step for a NLFS adjoint
1177    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1178    o new init. routines for calc_r_star, calc_surf_dr
1179    o still need to deal with ini_masks_etc
1180    o testreport seemed happy
1181    checkpoint57y_pre
1182    
1183    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1184    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1185    o add new offset feature to offline pkg (plus minor cleanup)
1186    o cfc fixes for final year of integration
1187    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1188      be in GCHEM_OPTIONS).
1189    
1190    checkpoint57x_post
1191    o fix testreport Pb in multiple test experiment.
1192    o cleanup our namelist syntax in verification:
1193      - make it more F95 standards compliant (some work still needed)
1194      - allows the vast majority of our tests to work with gfortran
1195    o Non-Hydrostatic:
1196     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1197     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1198    o Allow to apply AB on T,S rather than on AB(gT,gS):
1199     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1200     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1201       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1202     - need a "clever" read_pickup to restart from the other AB formulation
1203    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1204    o remove some unused variables (reduces number of compiler warnings)
1205    o adjoint
1206      * Disable useVariableViscosity for adjoint for time being
1207        (there are a number of extensive recomputations)
1208      * Initialize certain variables needed for adjoint
1209    
1210    checkpoint57w_post
1211    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1212                 fix the singleCpuIO RS version of MDSWRITEFIELD
1213       and add a WARNING if using globalFiles=T with multi-processors.
1214    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1215      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1216    o tracer advection scheme:
1217      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1218       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1219       was not very convenient).
1220      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1221       (further tests needed for the implicit DST & Flux-Limiter schemes).
1222    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1223      and sRef for convenience, handy, when you want to initialize
1224      ptracers in a large domain with a constant non-zero value. Also,
1225      untangle ptracers_init.F a little.
1226    
1227    checkpoint57v_post
1228    o change dome exp. to use variable viscosity in side-drag terms.
1229    o remove all the files from the cfc_offline test since they are now
1230      incorporated into tutorial_cfc_offline which has been producing
1231      identical results for a few days of testing
1232    o add new parameter: sideDragFactor to enable half-slip-side BC
1233      and change side-drag S/R to use viscosity from mom_calc_visc
1234      (can switch back by setting sideDragFactor=0.); affects results at
1235      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1236       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1237    o vorticity & strain are now computed without masking, to account for
1238      no-slip-side BC in variable viscosity calculation ; mask is applied
1239      anyway later on, before computing advection/coriolis terms.
1240    o modify exp4 to test new obcs support for reading from external files
1241      and for passive tracers
1242    o fix behavior of ptracers_monitor when monitor output is written to a
1243      netcdf-file; still not independent of monitor.F (writes in the same
1244      file).
1245    o change default value of tRef (put a uniform, meaningful value for ocean
1246      & atmos) and initialize sRef (was missing, as Martin mentioned).
1247    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1248      to be proportional to enstrophy dissipation length.  Thus,
1249       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1250      This is now consistent with Smagorinsky and with the manual.
1251    
1252    checkpoint57u_post
1253    o OBCS and PTRACERS: add open boundary support for passive tracers
1254      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1255        OB-values from file; this is not different from the way theta and salinity
1256        are treated
1257      - however, Orlanski-radiation conditions are not supported, and the model
1258        will stop if you use pTracers and Orlanski at the same time.
1259      - beefed up the rountine obcs_external_fields_load: now only those open
1260        boundary values are overwritten with values from files for which there
1261        are really files, otherwise the OB-fields remain untouched. This makes
1262        it possible to use different OBs at different ends of the domain (as
1263        with EXF)
1264    o reduce number of exch calls in shap_filt (s2).
1265    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1266      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1267    
1268    checkpoint57t_post
1269    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1270    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1271      same truncation, independent of the face number: affects affects several
1272      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1273    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1274      note that biharmonic viscosity + no-slip was not tested in any experiment.
1275    o fix bug in non-linear free-surf side-drag ; generate new output for
1276      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1277    o make mnc honor the writeBinaryPrec flag for most kinds of output
1278    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1279    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1280      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1281    o add brackets in multi-terms sum to get same truncation, independent of
1282      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1283      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1284    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1285      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1286      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1287      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1288      Suggested values of viscosity parameters found in mom_calc_visc.
1289      Many new viscosity diagnostics available.
1290    
1291    checkpoint57s_post
1292    o Add clearing-house for viscosity calculations, mom_calc_visc and
1293      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1294      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1295      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1296      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1297      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1298      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1299      ViscAhStrain and viscAhTension are now retired.
1300    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1301    o In response to JMC's bug report, genmake2 now ignores any soft-links
1302      that it finds in the *current* directory when searching for files.
1303      Soft-links found in any other source directories will still work as
1304      they did before.
1305    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1306      a C routine to unlimit the stack size
1307    o mnc-ify pkg/aim snapshot vars
1308    o mnc-ify pkg/land as requested by Daniel
1309    o various changes to mnc including:
1310      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1311      - output can now be grouped so that all files within a group
1312          change the ITER portion of their names in lock-step together
1313      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1314          and works with both EXCH1 and EXCH2 (but needs more testing)
1315      - writing works for all verification test cases w/ g77 on Linux
1316    
1317    checkpoint57r_post
1318    o make MNC variable initialization happen earlier
1319    o add diagnostics for (almost) each term of the momentum Eq.
1320    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1321    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1322    o remove MINIMAL_TAVE_OUTPUT option ;
1323      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1324    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1325      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1326    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1327    o add time-dependent SST, SSS control
1328    o cost terms in ecco/ modularized (new cost_generic.F)
1329    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1330    o new infrastructure for seaice model vs. obs misfits in seaice/
1331      * driver from the_main_loop.F is seaice_cost_driver.F
1332      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1333      * gradient check in Exp. 6a of natl_box_adjoint/
1334    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1335      (see README file)
1336    
1337    checkpoint57q_post
1338    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1339    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1340      - bug was reported by Jean-Michel and Ian Fenty
1341    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1342      update exp. cpl_aim+ocn output.
1343    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1344      Needed for high-res. runs with large global files
1345      to be able to limit tapelev size
1346    o Changed some tests for adjoint:
1347      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1348      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1349      * global_ocean.90x40x15/ back to default 3-level checkpointing
1350    o Modifications to enable scripted COMMON to MODULE conversion
1351      * verification/OpenAD/code/ has necessary scripts and description;
1352      * converts, compiles and runs successfully;
1353    
1354    checkpoint57p_post
1355    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1356    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1357      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1358    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1359    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1360      (was already the case for dissipation with mom_vecinv,
1361       and also the case for grad.PhiHyd when staggered-timeStep)
1362      This will allow to put dissipation out-off the AB time-stepping.
1363     Unfortunately, affects truncation error. Update output of exp. that "fails"
1364      (cg2d matching number) and leave the others for later: front_relax(10),
1365      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1366      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1367    
1368    checkpoint57o_post
1369    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1370      (2) its ready to be documented during the 20050801 DocFest
1371    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1372      for ideal_2D_oce and lab_sea on linux_ia32_g77
1373    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1374      in global1x1_tot/code_seaice_adj to access indices 32, 33
1375      (worth another tag)
1376    
1377    checkpoint57n_post
1378    o adding precip control xx_precip 32
1379    o adding swflux control xx_swflux 33
1380    o Replacing 10 forcing penalty cost routines by 1 generic.
1381    o Implementing partitioning in time-mean and variable adjustment
1382      for atmos. state.
1383    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1384    o in natl_box_adjoint:
1385      * updated exp 1 to 10
1386        (but does not have time-mean vs. variable split results yet)
1387    o updated global1x1/*_seaice_adj/
1388      to incorporate latest changes
1389    o enable useSingleCpuIO for mdsio vector routines
1390      (applies in particular to tapelev I/O)
1391    o removed inefficient K-loop in all active_file*control*.F
1392    
1393    checkpoint57m_post
1394    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1395      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1396    o pkg/exch2: filling of face-corner halo regions is optional
1397      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1398    
1399    checkpoint57l_post
1400     tag before updating tutorials (pre-release-2)
1401    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1402       for output and interpolation of input fields onto model grid)
1403    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1404       Affects results of exp. rotating_tank ; update output.txt.
1405    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1406          and taking the square quantity and/or using a fraction-weight field.
1407    o fix aim_diagnostics_init.F mate numbers.
1408    o add mnc output capability to diagnostics/diagstat and update
1409      our cvsignore files for the ACSII output generated
1410    
1411    checkpoint57k_post
1412    o lab_sea now uses diagnostics package and provides a suite of
1413      new EXF diagnostics output.
1414    
1415    checkpoint57j_post
1416    o exf
1417      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1418        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1419        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1420      * extended diagnostics output
1421        - now includes all EXF variables
1422        - hs, hl moved to common block
1423        - separate S/R for diagnostics, called after ctrl vector is added
1424        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1425        - EXFqnet contains true Qnet (i.e. includes qsw)
1426      * updated verif. lab_sea, global_with_exf
1427      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1428        to ensure that diagnostics sees a true EXFqnet
1429    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1430    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1431      several times with different frequencies.
1432    o mnc-ify the thsice package as requested by Daniel Enderton
1433      - the monitor--MNC output needs work
1434      - many attributes need to be added (most are currently blank)
1435    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1436      - many attributes need to be added (most are currently blank)
1437    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1438    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1439    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1440      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1441         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1442    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1443     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1444    
1445    checkpoint57i_post
1446    o Diagnostics package was changed: diagnostic allocation is now deactivated
1447      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1448    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1449      add 1rst Order upwind vertical Shear.
1450    o add a quick fix for A/B checkpointing in OFFLINE mode
1451    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1452      end-run around the C/Fortran linking horror in eesup/src/timers.F
1453    o added pkg/runclock: allows user to terminate run based on wall clock
1454    o added non-hydrostatic scaling parameter: nh_am2
1455    o pkg/my82: futile attempt to make results compiler-independent by adding
1456      some "_d 0", etc. no effect.
1457    o for mnc output, fill the 'T' coordinate var with myTime and create a
1458      separate 'iter' variable for iteration count
1459    o pkg/diagnostics:
1460      add new capability: output of Global/Regional & per-level statistics ;
1461      tested against monitor output (including land & thSIce) on various exp.
1462    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1463    
1464    checkpoint57h_done
1465      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1466      data.diagnostics, data.gchem, data.ptracers) is done.
1467    
1468    o pkg/diagnostics: prepare for Global/Regional statistics.
1469      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1470    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1471      and rename it: DIFFERENT_MULTIPLE
1472    
1473    checkpoint57h_post
1474    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1475    o pkg/diagnostics: change output frequency, now in seconds (instead
1476      of Nb of iterations). This requires to change data.diagnostics.
1477    checkpoint57h_pre
1478    
1479    o in mnc, let the user create the output dir if both mnc_outdir_date
1480      and mnc_outdir_num are false
1481    o add fflags() to pkg/diagnostics which allows one to specify, on a
1482      per-file basis, the file precision [default behavior is unchanged]
1483    o added diagnostics to pkg/kpp, including computation of mixed layer
1484      depth based on a temperature/density criterion
1485    o updated verification/natl_box to test the new pkg/kpp diagnostics
1486    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1487    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1488    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1489      not mnc -- this mistake was found by JMC and is now corrected
1490    
1491    checkpoint57g_post
1492    o add Adams-Bashforth 3rd Order time stepping:
1493      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1494      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1495    checkpoint57g_pre
1496    
1497    o make lambda[Theta,Salt]ClimRelax spatially varying
1498      (default remains spatially uniform constant based on tau)
1499    o added new control variables
1500      * init. uVel, vVel, etanN
1501      * lambda[Theta,Salt]ClimRelax
1502    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1503      (suggested by G. Forget)
1504    
1505    checkpoint57f_post
1506    o add parameter "baseTime" = model base time = time at iteration zero
1507      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1508      account for baseTime shift
1509    o move Coriolis arrays from PARAMS.h to GRID.h
1510    checkpoint57f_pre
1511    
1512    o mnc-ifying the seaice package
1513    o introduced an alternative length scale calculation for use in the limiting
1514      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1515    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1516    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1517      as well as grad(vort3).  Made it compatible with both approximate form
1518      for the cubed sphere and full form of these gradients.  Added flag
1519      useFullLeith to select between approximate and full form.  
1520    o add "d0" in getcon.F to reduce differences between compilers/platforms
1521      update output.txt of exp. fizhi-gridalt-hs
1522  o change port_rand funtion to allow to set the seed.  o change port_rand funtion to allow to set the seed.
1523  o fix obscure MNC bug involving conversion between reals and integers  o fix obscure MNC bug involving conversion between reals and integers
1524    - it caused no problems with certain (eg. gcc, ifc) compilers but the    - it caused no problems with certain (eg. gcc, ifc) compilers but the
1525      new version is now more standards-compliant      new version is now more standards-compliant
1526    o adjoint-related modifications
1527      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1528      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1529      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1530    
1531  checkpoint57e_post  checkpoint57e_post
1532  o Adding eddy stress controls a la Ferreira et al.  o Adding eddy stress controls a la Ferreira et al.
1533  checkpoint57e_pre  checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1534    
1535  o fizhi pkg: fix AtoC and CtoA when called with same input & output array  o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1536    update output.txt of exp. fizhi-gridalt-hs    update output.txt of exp. fizhi-gridalt-hs

Legend:
Removed from v.1.463  
changed lines
  Added in v.1.949

  ViewVC Help
Powered by ViewVC 1.1.22