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revision 1.747 by dimitri, Mon Nov 20 20:06:43 2006 UTC revision 1.942 by dimitri, Fri Jan 18 01:38:33 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
8    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
9      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
10    o verification/seaice_obcs: updated for restart test and latest options
11    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
12      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
13      for now this is only available for the C-grid code and also within
14      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
15    
16    checkpoint59m
17    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
18      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
19    o gad_som : fix flux output (& diagnostics) to have same units as other  
20      advection scheme fluxes (was previously multiplied by deltaT).  
21    o added verification/seaice_obcs both to test seaice open boundaries
22      and to provide an example matlab scrpt for generating them
23    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
24    o pkg/salt_plume: clean up salt_plume_frac.F to
25      remove redundancy in PlumeMethod 1 and 4
26    o pkg/kpp: added saltplume diagnostics
27    o pkg/obcs and pkg/seaice:
28      - do not set uice and vice to zero when OB*icefile are unspecified
29      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
30      - moved seaice tracer obcs after call to seaice_growth
31    o pkg/salt_plume: added various options for salt plume depth
32      criterion and for vertical distribution of the salt
33    
34    checkpoint59l
35    o pkg/ptracers: new version of ptracers pickup:
36      read meta file and write only fields which are needed to restart.
37      ( same logic as main pickup file ; also using pickupStrictlyMatch )
38    o pkg/seaice:
39      - add timescale for melting due to warm mixed layer as a means of
40        setting SEAICE_availHeatFrac more conveniently
41      - add a CPP-flag/runtime parameter check for flooding algorithm
42      - reformulated availHeat in seaice_growth.F to be independent of AREA
43    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
44      unit changes
45    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
46    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
47      SX vector computer.
48    o pkg/seaice:
49      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
50        seaice forcing fields can now be read only through pkg/exf
51      - removed some unused halos
52    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
53    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
54      or U/VICE from U/VWIND before computing U/VSTRESS
55    
56    checkpoint59k
57    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
58      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
59    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
60      all experiments pass when compile with un-initialised var. checking option.
61    o added pkg/salt_plume
62    o script to test restart (for now, in MITgcm_contrib/jmc_script)
63    o pkg/seaice: new read/write pickup version.
64      read meta file and write only fields which are needed to restart.
65      ( same logic as main pickup file ; also using pickupStrictlyMatch )
66    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
67    o lab_sea.hb87: modify the domain & update output.hb87.txt :
68      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
69      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
70      process. Fixed here by closing the domain at the Northern boundary.
71    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
72    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
73      a set of consecutive levels in/from a 3-D array.
74    o pkg/ptracers:
75      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
76      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
77    
78    checkpoint59j
79    o in pkgs: dic, obcs, offline, rbcs:
80      standard way to compute coeff. for time interpolation between 2 time reccords
81      which retains full precision (& make results less dependent on compiler).
82      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
83    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
84      packages instead of reading ice cover and wind speed separately
85    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
86     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
87      to allow to compile customized code before the update)
88    o cleaning-up:
89      - fix CPP instruction syntax in pkg/obcs
90      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
91        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
92      - fix some threads issue in IO parts.
93    o pkg/dic:
94      - add tons of "_d 0" (--> much better testreports !)
95       and then update outputs of tutorial_global_oce_biogeo
96    o pkg/mom_fluxform:
97      add a special version of momentum advection intended to conserve momentum
98      next to a bathymetry step or a coastline edge. (default = off = #undef)
99    o new read/write pickup version:
100      - for now, only implemented for main (mdsio) pickup file.
101      - write out only what is needed to restart; merge pickup_nh , pickup_ph
102        and main pickup together.
103      - read meta file; read only what is needed to restart; stop if a field
104        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
105        if it make sense (even if the restart is not perfect).
106      - if no meta file, assume that pickup to read corresponds exactly to
107        a pickup that would currently be written.
108      - read pickup written in the old format (until checkpoint59i) if it
109        recognizes an old meta file (no field-list).
110      - add a meta file in exp. which starts from a pickup: 2 cases:
111        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
112         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
113        b) a meta file describing the content of the associated pickup file
114         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
115    o pkg/mdsio & pkg/rw:
116      - new routine to read a meta file ; new set of routine to read
117        Multiple-fields file (with meta file).
118    o added open boundary conditions capability for seaice
119        HSNOW, HSALT, UICE, and VICE
120    
121    checkpoint59i
122    o adjoint:
123      * fix multiDimAdvection adjoint
124        (partial recomputation problem by TAF for fVerT(:,:,kDown)
125        and comlev1 size definition (maxpass vs. max. number of tracers)
126      * verification/global_ocean.90x45x15 adjoint now tests
127        NLFS and multiDimAdvection using DST3 (=30)
128      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
129    o pkg/kpp: add "_d 0" to real constant (if missing);
130      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
131      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
132    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
133      for internal parameters related to restart process (formerly from PARAMS.h)
134      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
135    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
136      as argument. (only atm2d & obcs write_pickup have not yet been updated)
137    o pkg/monitor:
138      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
139      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
140      - account for deep Atmosphere factor and density factor (anelastic)
141    o added open boundary conditions capability for seaice HEFF and AREA
142    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
143      thermodynamics
144      - requires a little reorganization, which affects the testreport results
145        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
146        so that now the conservative form is tested
147      - add a few comments
148    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
149    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
150    o add new diagnostics to seaice: advective, diffusive fluxes (only for
151      multidim-advection, for scheme 2 they are not filled) and transports,
152      thermodynamic growth rates
153    o change units of EmPmR (inside the code, + within coupling interface)
154      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
155      Affects results @ truncation level (cg2d match) and update output of
156       experiments: lab_sea(6), global_ocean.90x40x15(10),
157      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
158      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
159      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
160      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
161    
162    checkpoint59h
163    o pkg/exf:
164      - improve vectorization by moving if-statement out of loops in
165        exf_mapfields, exf_radiation
166      - exf_bulkformulae.F: introduce 2D fields and vectorize code
167    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
168    o testreport:
169      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
170        monitor & update offline_exf_seaice exp. output.
171      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
172    o pkg/seaice:
173      - bug fix in the evp solver: boundary conditions were affected be
174        masking of zMax/zMin (changes results)
175      - minor bug fix in boundary conditions in seaice_calc_strainrates
176        (changes results for no_slip)
177      - seaice_lsr.F: make interpolation of eta dependent on boundaries
178      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
179      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
180        stress formulation and no-slip boundary conditions
181    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
182      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
183    o pkg/seaice: a first HSALT time stepping equation has been checked in
184    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
185      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
186      without requiring DO-IF statements
187    o pkg/thsice:
188      use continuous power-law function for partition of energy between lateral
189      melting/freezing and thinning/thickening ; old code using step function
190      still available with #undef THSICE_FRACEN_POWERLAW
191      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
192    o testreport: change AD testing : check against results/output_adm.txt
193      using same scripts as for forward test.
194    
195    checkpoint59g
196    o adjoint testing: in preparation for changing testreport:
197      - output format: cost and grad written on separated lines
198      - ad output results in directory "results" (instead of "results_ad")
199    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
200    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
201    o pkg/ecco: allow user defined cost function contributions
202    o testreport:
203      Allow to choose (per experiment) the list of tested output variables
204       and the main variable (used to issue a pass/FAIL ) ;
205      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
206      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
207      Also modify printing of summary:
208       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
209       b) echo the list of tested variables in the individual summary.txt of
210          each experiment.
211    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
212      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
213      (but still depend on the tile decompostion of the domain).
214    o pkg/seaice: change a discretization detail to make the B-grid code
215      "more symmetric". This change is likely to remove all "ridges/leads" that
216      where quasi-aligned with the grid in B-grid solutions. It may also be
217      the solution to the stress coupling issues with the B-grid.
218    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
219      remove .cvsignore from input dir. (since testreport no longer run here).
220    o pkg/thsice:
221     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
222     - fix reshaping of sea-ice just after advection:
223       melt all the ice only if ice-volume is too small.
224     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
225       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
226     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
227    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
228      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
229    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
230      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
231      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
232      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
233      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
234      -> update output.txt
235    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
236     this affects truncation error: -> update output.txt of exp:
237      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
238      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
239    
240    checkpoint59f
241    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
242    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
243      a bounded range (in forward mode)
244    o pkg/ecco, ctrl, autodiff and mom_common:
245     internal parameter controls, completements of implementations
246    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
247    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
248      (not seem any difference in testing results).
249    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
250       at face corners.
251    o pkg/generic_advdiff:
252     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
253      loop range indices for computing vertical advection tendency
254      and do the calculation in the interior only (no overlap) ;
255      for now, only implemented for SOM advection (to save CPU time).
256     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
257    o exch2 adjoint
258      First set of changes:
259      - add exch2 hand-written adjoint templates
260      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
261        This will require cleanup in pkg/autodiff/*.F
262        (changed routines currently kept separate in verif. code/)
263      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
264        that used to hide exch2 or cubed-sphere specific code
265        (commented via 'cph-exch2')
266    o pkg/seaice
267      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
268    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
269       output of global_ocean.cs32x15.thsice .
270    
271    checkpoint59e
272    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
273      for B-grid vector (not yet tested) and C-grid vector (<- only used
274      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
275    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
276      (#ifdef ALLOW_SALT_PLUME)
277    o gather_2d/scatter_2d: removed halo regions
278    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
279      scheme and the corresponding test case (under front_relax dir). For now,
280      only available with Skew-flux form and not yet tested in realistic set-up.
281      adjoint: store directives updated, but gradient checks deteriorated,
282      so maybe GM/Redi adjoint is now broken.
283    o seaice adjoint
284      * add AREA, HEFF, HSNOW as control variable
285        (should not change lab_sea results)
286      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
287    o pkg/seaice:
288      * added computation of saltFlux in seaice_growth;
289        For time being, sea ice salinity is assumed constant
290        contribution of snow flooding to freshening of sea ice is neglected.
291        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
292        defaults to 0.0 in order to maintain backward compatibility.
293        Typical values for SEAICE_salinity are 4 to 10 g/kg.
294      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
295      * added SEAICE_availHeatFrac, which specifies fraction of surface level
296        heat content used to melt or grow ice
297      * commented out cap of HICE: it helps keep ice thinner
298      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
299      * applied OBCS T/S mask to HEFFM sea ice mask
300    
301    checkpoint59d
302    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
303     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
304     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
305    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
306     and change default value of parameter "GM_Small_Number";
307     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
308       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
309       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
310    o pkg/ecco: cost function when applying pkg/smooth to controls
311    o pkg/ctrl: add forcingPrecond run time parameter
312    o pkg/seaice:
313     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
314     - fix bug in metric terms of u-equation in LSR solver (implicit part),
315       changes verification/lab_sea
316     - rearrange implicit part of u-equation in LSR solver to make it easier to
317       read, understand, and debug. This causes changes at the truncation level.
318     - fix (serious) bug in the boundary conditions (sign error in the implicit
319       part) of the LSR solver. Changes all LSR results.
320     - fixed problem with HSNOW initialization to avoid thick snow when AREA
321       is initilized with small values - does not change lab_sea results.
322     - added HsnowFile initialization capability
323    o pkg/smooth: addition to model/src and pkg/ctrl so allow
324     initialization of pkg/smooth and application to control vector
325    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
326    o dependencies: pkg/profiles requires pkg/cal
327    o pkg/profiles:
328     - added option ALLOW_PROFILES_GENERICGRID
329         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
330         that interpolation information (grid points and coefficients) is provided
331         within the netcdf input files.
332         -> sample matlab scripts can be found in MITgcm_contrib/gael
333         that allow you to prepare netcdf input files.
334     - also modified: cleaner include statements, cleaner error print statements,
335       cleaner stops when error, and more tests of the netcdf input files consistency.
336    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
337    o pkg/seaice:
338     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
339       requires a new routine: seaice_diagnostics_fill.F
340     - make sure that seaice does not move if not forced (pressure replacement
341       method, Hibler and Ip, 1995), changes results
342     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
343     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
344       It is turned off by default (=-1.), because it changes the results.
345     - make it possible to read AREA from a file, too.
346    
347    checkpoint59c
348    o add S/R and diagnostics for oceanic mixed-layer depth
349    o move GMRedi call after all vertical mixing schemes (including KPP)
350    o pkg/thsice:
351     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
352      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
353    o pkg/obcs:
354     - bug fix for balance code
355    o pkg/seaice:
356      - allow values of SEAICE_elasticParm > 1
357      - add new parameter SEAICE_evpTauRelax as an alternative
358        to SEAICE_elasticParm
359      - make lsr boundary conditions free slip (by default), changes result
360      - add code for no slip boundary conditions for lsr
361      - set minimum of zeta to zero (and not 4e8) (changes results)
362      - add a cap on AREA after advecting AREA if seaice_growth is not called
363    o change calculation of Visbeck K:
364      - no longer depend on tapering scheme; instead, compute slope (limited
365        by GM_maxSlope). this is equivalent to what was comuted before with
366        clipping or linear tappering.
367      - fix vertical averaging (wrong by 1/2 level)
368      - leave the old version (but will not be maintained) within
369        #ifdef OLD_VISBECK_CALC / #endif
370      - update output of exp. ideal_2D_oce
371    o change error catch in calc_r_star to improve vectorization
372    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
373      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
374    o adjoint:
375      Re-organized adjoint checkpointing according to Matt Mazloff
376      (but with modifs/completions/cleanups)
377      Storing is now bundled into large arrays to optimized I/O
378      (and second step in cleanup of the_main_loop)
379    
380    checkpoint59b
381    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
382      - export/import (between ocean & coupler) fields needed for ocean DIC.
383    o pkg/seaice:
384      - get rid of three more exchanges seaice_calc_viscosities (required
385        different loop boundaries in seaice_lsr and seaice_ocean_stress)
386      - bug fix in seaice_ocean_stress (update of lab_sea required)
387      - reduce loop boundaries to necessary minimum also in seaice_evp
388      - go back to the old way of computing deltaC/Z as the adjoint likes that
389        better
390    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
391      passive tracer to an Age Tracer) + update output.txt
392    o pkg/exf:
393      - implement A-grid / C-grid selection for wind-stress input files.
394      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
395      for now, in exf_bulk_largeyeager04.F only :
396      - change implementation for case where windspeed + 2. components wind-stress
397        are read-in. AND use rhoConstFresh to convert evap.
398    o pkg/seaice:
399      - use correct EXCH_UV for wind-forcing (on A-grid).
400      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
401        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
402    o pkg/exf:
403      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
404      EXF_INTERPOLATION:
405      - merge global_with_exf/code version of exf_interp_read.F
406        to the main code ;
407      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
408        reading the file ; Important: This options needs to be defined to recover
409        previous code.
410        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
411      - no longer loose real*8 precision along the way when using exf_iprec=64.
412    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
413      - change discretisation of evp-solver in order to avoid another exchange
414        (changes lab_sea) and clean up a little
415      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
416        help the adjoint (this also changes the results slightly)
417      - add a few "_d 0" where they had been missing in seaice_evp.F
418      - cleaning up: remove unused seaice_calc_rhs.F
419    o pkg/exf: some cleaning-up:
420      - change various "constants" into runtime parameters
421      - cleaned-up Large&Yeager04 routine which should eventually
422        replace exf_bulkformulae.F (changed names of S/R and CPP)
423        and merged various ALLOW_ATM_WIND options
424     only used with thsice pkg (in thsice_get_exf.F):
425      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
426        which are used when useStabilityFct_overIce=TRUE (= the default)
427      - change default values of ice & snow emissivity and scale downward LW
428        by ice & snow emissivity.
429    o pkg/thsice:
430     fix few little problems, in thsice_calc_thickn.F:
431      - growth vertically (and not laterally) if iceFrac == iceMaskMax
432      - melt only laterally if hIce < hThinIce (as the comments say)
433      and in thsice_extend.F:
434      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
435      - start to form ice as soon as the minimum ice-volume is reachable.
436     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
437      and cpl_aim+ocn
438    o pkg/kpp
439     - move computation of surface related input fields to KPP into a new
440       subroutine kpp_forcing_surf.F
441     - remove wrong (within bi,bj loops) EXCH calls.
442     - little cleaning (add argument myThid in last position, cvs header ...)
443     - for now, fix conservation problem by exchanging KPPviscAz (may not
444       be the best fix)
445    o pkg/seaice
446     - check for inconsistent evp parameter/cpp-flag combination
447     - remove leftover errIO flat for obsolete name list error handling
448    o OpenAD
449     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
450    
451    checkpoint59a
452    o pkg/seaice: some parameter clarifications and a little bit of clean up
453    o pkg/thsice: rename run-time parameters:
454       himin       -> hIceMin
455       himin0      -> hThinIce
456       hihig       -> hThickIce
457       i0          -> i0swFrac
458       transCoef   -> bMeltCoef
459       frac_energy -> fracMelting
460      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
461       with default values (for now) that do not change the results.
462      remove old version of thsice vars advection in pkg/seaice.
463    o in FFIELDS.h:
464      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
465      - make pLoad & sIceLoad always available (but still only used if
466         ATMOSPHERIC_LOADING is #define).
467    o pkg/kpp: replaced _KPP_RL with _RL
468    o bug fixes for vertical diffusivity computations when both KPP and
469        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
470        are no longer updating the vertical diffusivity array
471        (passed as argument) but are (re-) setting those arrays.
472    o pkg/seaice: fix bug in evp solver, while doing that
473      - change (improve?) discretization of stress computations for both
474        cgrid-lsr and evp solver
475      - add a new routine to compute strain rates
476      - the above changes lab_sea results
477      - add no slip conditions for evp solver (off by default), lsr-version
478        may follow
479      - fix exchange for shear at Z-points (does not change lab_sea)
480      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
481        (to force the user to pick a time step since there is not "safe" way
482        of choosing it)
483      - add principal stress diagnostics
484      - rearrange fields for evp a little to avoid having to call a: too many
485        exchanges and b: exchanges for stress trensor components which we do
486        not have.
487      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
488        of evp, complete rewrite for lsr case (latter is does not yet work
489        in all cases)
490    o pkg/kpp: add code to have mixing in shelf ice caverns
491      - add myThid to all kpp routines (long overdue)
492    
493    checkpoint59
494    o pkg/exf:
495      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
496        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
497      - move exf header files from lower_case.h to UPPER_CASE.h ;
498        add missing cvs Header & Name
499      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
500      - add namelist param. selectStressGridPosition, exf_monFreq
501      - retire many _CLIM routines, and remove data.exf_clim
502        + params moved to data.exf
503        + climsst, climsss now handled by exf_set_gen, i.e.
504          climss?period=0 refers to constant field,
505          climss?period=-12 to monthly forcing
506      - split up namelists in data.exf
507    o pkg/seaice:
508      - remove seaice_exch and seaice_exch_uv
509      - remove superfluous exchange of theta
510      - add myThid to seaice_budget_ocean/ice
511      - add new interface for atmospheric wind forcing (C-grid only)
512        + new routine
513        + two new field (taux, tauy for stress over ice)
514        + removed one global field (DAIRN) for C-grid case only
515    o pkg/thsise
516      - 2nd set of modifs for thsice adjoint in conjunction with exf
517    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
518    
519    checkpoint58y_post
520    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
521      vertical diffusivity, similar to that in MOM4; turned on using
522      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
523      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
524    o Added capability for 3D specification of background vertical diffusion
525      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
526      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
527      "data" file that contains the 3D vertical diffusivity coefficients.
528    o ice dynamics (pkg/seaice) with thsice thermodynamics:
529      - add code within pkg thsice to advect & diffuse sea-ice fields
530      similar to (and will replace) what has been added in  seaice_advdiff.F,
531      but: - conserving Mass, Heat & Salt.
532           - better when using non-linear advection scheme (not yet fully tested)
533           - can also be used in atmospheric set-up (for now, only the diffusion).
534    
535    checkpoint58x_post
536    o IO option for global-file compact format:
537      - add options when generating topology (utils/exch2/matlab-topology-generator)
538      - add I/O capability (pkg/mdsio).
539      - adapt utils/matlab/rdmds.m to read this format.
540      for now long-line format not yet supported by pkg/mdsio (& exch2).
541    o shelfice: add a few diagnostics
542    
543    checkpoint58w_post
544    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
545      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
546      (and replace horiVertRatio in NH code).
547      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
548                         and tutorial_plume_on_slope (sensitive to truncation)
549    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
550      directly to drive seaice model (C-grid only)
551    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
552     - reintroduce computation of wind from stress,
553     - compute tau (in exf_bulkformulae.F) from windstress averaged to
554       mass points to avoid tau = 0
555     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
556    o rdmnc.m: make it work with "global" files created with gluemnc
557    o rdmnc.m : some improvements in dealing with singleton dimension
558      (tested on all testreport mnc output files).
559    o genmake2: disable pkg/profiles if netcdf test fails.
560    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
561    o move call to cal_readparms up to make calendar parameters/variable available
562      to all packages
563    
564    checkpoint58v_post
565    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
566      useDynP_inEos_Zc tested.
567    o pkg/exf: changes to properly interpolate/mask/scale initial fields
568    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
569      and portions thereof.  See read_cs.txt for description and examples.
570    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
571      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
572      following the great-circle arc between those 2 points.
573    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
574      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
575    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
576     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
577     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
578     - still needs work (not working with some options ; efficiency to improve)
579       and serious testing.
580     - use this scheme for temperature & salinity in 2 advection test exp.:
581       advect_xy & advect_xz, respectively.
582    
583    checkpoint58u_post
584    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
585    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
586    o testreport: add option "-skipdir" to skip some test.
587    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
588      momentum calculation.
589    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
590    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
591      remove checkpoint.F and the_correction_step.F (no longer used);
592      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
593    o add option (linFSConserveTr) to correct for tracer source/sink due to
594      Linear Free surface
595    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
596    o pkg/thsice: fix reading mnc-pickups
597    
598    checkpoint58t_post
599    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
600    o pkg/mdsio:
601     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
602       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
603       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
604     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
605     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
606       either MDS_READ_FIELD or MDS_WRITE_FIELD )
607     - new S/R (to replace MDSWRITEMETA), which allows to write more
608       informations (variable names, time ...) to meta files.
609     - modify rdmds.m to give back the meta file content.
610    o pkg/diagnostics: change vertical interpolation to be safer, and more
611       flexible (define p-levels to interpolate to in data.diagnostics);
612      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
613       diagnostic pointer.
614    o pkg/seaice: more cleaning up of seaice_growth, added many comments
615    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
616    o fix multi-category seaice:
617     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
618       SEAICE_MULTICATEGORY
619     - fix short wave heat flux
620    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
621       and allow to use EVP solver. Change forward lab_sea: test both EVP
622       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
623    o Initial check-in of lab_sea adjoint
624      (very similar to natl_box_adjoint/code_seaice)
625      * used C-grid and EVP solver
626      * used KPP, GM/Redi
627      * uses inAdExact=.TRUE.
628      * gradient checks fail for both ADM and TLM
629        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
630        f.d. gradients actually seem more problematic than ADM, TLM gradients;
631        issue is related to forward mismatch between g77 an ifort
632    o pkg/seaice: overhaul of thermodynamics
633     - growth.F and groatb.F are replaced by new routine seaice_growth.F
634     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
635     - move a few global fields out of SEAICE.h into seaice_growth.F and
636       make them 2D (FICE/QNETO/ ...)
637     - remove FO (it is the same as QNETO)
638     - introduce a few local fields to avoid modifying external fields such
639       as atemp, etc.
640    
641    checkpoint58s_post
642    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
643      changed exf_set_gen.F so that
644        genperiod=0 means input file is one time-constant field and
645        genperiod=-12 means input file contains 12 monthly means
646    o CG2D: use pre-computed solver main-diagonal (stored in common block);
647      this affects truncation error ; generate new output file for exp. which
648      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
649        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
650        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
651        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
652        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
653        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
654    o start implementation of deep-atmosphere and anelastic formulation
655    o verification: remove 2nd copy of input files and use script "prepare_run"
656      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
657    o mom_common/vecinv/fluxform: fix a few initialisation isssues
658    o profiles: fix for multithreaded case
659    
660  o diagnostics: rename few diags:  o diagnostics: rename few diags:
661    s/'PRESSURE'/'RCENTER '/g    s/'PRESSURE'/'RCENTER '/g
662    s/'TICE    '/'oceFreez'/g    s/'TICE    '/'oceFreez'/g

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