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revision 1.715 by mlosch, Mon Aug 14 16:53:08 2006 UTC revision 1.921 by dimitri, Wed Dec 5 16:56:14 2007 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  o shelfice: add a simple boundary layer scheme to reduce noise  o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
8    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
9      SX vector computer.
10    o pkg/seaice:
11      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
12        seaice forcing fields can now be read only through pkg/exf
13      - removed some unused halos
14    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
15    o pkg/exf: added CPP option EXF_SUBTRACT_UVVEL_FROM_UVWIND for subtracting
16      UVEL and VVEL from UWIND and VWIND prior to applying bulk formulae.
17    
18    checkpoint59k
19    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
20      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
21    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
22      all experiments pass when compile with un-initilised var. checking option.
23    o added pkg/salt_plume
24    o script to test restart (for now, in MITgcm_contrib/jmc_script)
25    o pkg/seaice: new read/write pickup version.
26      read meta file and write only fields which are needed to restart.
27      ( same logic as main pickup file ; also using pickupStrictlyMatch )
28    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
29    o lab_sea.hb87: modify the domain & update output.hb87.txt :
30      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
31      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
32      process. Fixed here by closing the domain at the Northern boundary.
33    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
34    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
35      a set of consecutive levels in/from a 3-D array.
36    o pkg/ptracers:
37      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
38      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
39    
40    checkpoint59j
41    o in pkgs: dic, obcs, offline, rbcs:
42      standard way to compute coeff. for time interpolation between 2 time reccords
43      which retains full precision (& make results less dependent on compiler).
44      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
45    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
46      packages instead of reading ice cover and wind speed separately
47    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
48     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
49      to allow to compile customized code before the update)
50    o cleaning-up:
51      - fix CPP instruction syntax in pkg/obcs
52      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
53        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
54      - fix some threads issue in IO parts.
55    o pkg/dic:
56      - add tons of "_d 0" (--> much better testreports !)
57       and then update outputs of tutorial_global_oce_biogeo
58    o pkg/mom_fluxform:
59      add a special version of momentum advection intended to conserve momentum
60      next to a bathymetry step or a coastline edge. (default = off = #undef)
61    o new read/write pickup version:
62      - for now, only implemented for main (mdsio) pickup file.
63      - write out only what is needed to restart; merge pickup_nh , pickup_ph
64        and main pickup together.
65      - read meta file; read only what is needed to restart; stop if a field
66        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
67        if it make sense (even if the restart is not perfect).
68      - if no meta file, assume that pickup to read corresponds exactly to
69        a pickup that would currently be written.
70      - read pickup written in the old format (until checkpoint59i) if it
71        recognizes an old meta file (no field-list).
72      - add a meta file in exp. which starts from a pickup: 2 cases:
73        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
74         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
75        b) a meta file describing the content of the associated pickup file
76         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
77    o pkg/mdsio & pkg/rw:
78      - new routine to read a meta file ; new set of routine to read
79        Multiple-fields file (with meta file).
80    o added open boundary conditions capability for seaice
81        HSNOW, HSALT, UICE, and VICE
82    
83    checkpoint59i
84    o adjoint:
85      * fix multiDimAdvection adjoint
86        (partial recomputation problem by TAF for fVerT(:,:,kDown)
87        and comlev1 size definition (maxpass vs. max. number of tracers)
88      * verification/global_ocean.90x45x15 adjoint now tests
89        NLFS and multiDimAdvection using DST3 (=30)
90      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
91    o pkg/kpp: add "_d 0" to real constant (if missing);
92      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
93      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
94    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
95      for internal parameters related to restart process (formerly from PARAMS.h)
96      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
97    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
98      as argument. (only atm2d & obcs write_pickup have not yet been updated)
99    o pkg/monitor:
100      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
101      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
102      - account for deep Atmosphere factor and density factor (anelastic)
103    o added open boundary conditions capability for seaice HEFF and AREA
104    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
105      thermodynamics
106      - requires a little reorganization, which affects the testreport results
107        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
108        so that now the conservative form is tested
109      - add a few comments
110    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
111    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
112    o add new diagnostics to seaice: advective, diffusive fluxes (only for
113      multidim-advection, for scheme 2 they are not filled) and transports,
114      thermodynamic growth rates
115    o change units of EmPmR (inside the code, + within coupling interface)
116      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
117      Affects results @ truncation level (cg2d match) and update output of
118       experiments: lab_sea(6), global_ocean.90x40x15(10),
119      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
120      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
121      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
122      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
123    
124    checkpoint59h
125    o pkg/exf:
126      - improve vectorization by moving if-statement out of loops in
127        exf_mapfields, exf_radiation
128      - exf_bulkformulae.F: introduce 2D fields and vectorize code
129    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
130    o testreport:
131      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
132        monitor & update offline_exf_seaice exp. output.
133      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
134    o pkg/seaice:
135      - bug fix in the evp solver: boundary conditions were affected be
136        masking of zMax/zMin (changes results)
137      - minor bug fix in boundary conditions in seaice_calc_strainrates
138        (changes results for no_slip)
139      - seaice_lsr.F: make interpolation of eta dependent on boundaries
140      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
141      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
142        stress formulation and no-slip boundary conditions
143    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
144      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
145    o pkg/seaice: a first HSALT time stepping equation has been checked in
146    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
147      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
148      without requiring DO-IF statements
149    o pkg/thsice:
150      use continuous power-law function for partition of energy between lateral
151      melting/freezing and thinning/thickening ; old code using step function
152      still available with #undef THSICE_FRACEN_POWERLAW
153      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
154    o testreport: change AD testing : check against results/output_adm.txt
155      using same scripts as for forward test.
156    
157    checkpoint59g
158    o adjoint testing: in preparation for changing testreport:
159      - output format: cost and grad written on separated lines
160      - ad output results in directory "results" (instead of "results_ad")
161    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
162    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
163    o pkg/ecco: allow user defined cost function contributions
164    o testreport:
165      Allow to choose (per experiment) the list of tested output variables
166       and the main variable (used to issue a pass/FAIL ) ;
167      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
168      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
169      Also modify printing of summary:
170       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
171       b) echo the list of tested variables in the individual summary.txt of
172          each experiment.
173    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
174      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
175      (but still depend on the tile decompostion of the domain).
176    o pkg/seaice: change a discretization detail to make the B-grid code
177      "more symmetric". This change is likely to remove all "ridges/leads" that
178      where quasi-aligned with the grid in B-grid solutions. It may also be
179      the solution to the stress coupling issues with the B-grid.
180    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
181      remove .cvsignore from input dir. (since testreport no longer run here).
182    o pkg/thsice:
183     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
184     - fix reshaping of sea-ice just after advection:
185       melt all the ice only if ice-volume is too small.
186     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
187       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
188     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
189    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
190      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
191    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
192      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
193      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
194      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
195      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
196      -> update output.txt
197    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
198     this affects truncation error: -> update output.txt of exp:
199      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
200      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
201    
202    checkpoint59f
203    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
204    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
205      a bounded range (in forward mode)
206    o pkg/ecco, ctrl, autodiff and mom_common:
207     internal parameter controls, completements of implementations
208    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
209    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
210      (not seem any difference in testing results).
211    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
212       at face corners.
213    o pkg/generic_advdiff:
214     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
215      loop range indices for computing vertical advection tendency
216      and do the calculation in the interior only (no overlap) ;
217      for now, only implemented for SOM advection (to save CPU time).
218     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
219    o exch2 adjoint
220      First set of changes:
221      - add exch2 hand-written adjoint templates
222      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
223        This will require cleanup in pkg/autodiff/*.F
224        (changed routines currently kept separate in verif. code/)
225      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
226        that used to hide exch2 or cubed-sphere specific code
227        (commented via 'cph-exch2')
228    o pkg/seaice
229      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
230    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
231       output of global_ocean.cs32x15.thsice .
232    
233    checkpoint59e
234    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
235      for B-grid vector (not yet tested) and C-grid vector (<- only used
236      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
237    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
238      (#ifdef ALLOW_SALT_PLUME)
239    o gather_2d/scatter_2d: removed halo regions
240    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
241      scheme and the corresponding test case (under front_relax dir). For now,
242      only available with Skew-flux form and not yet tested in realistic set-up.
243      adjoint: store directives updated, but gradient checks deteriorated,
244      so maybe GM/Redi adjoint is now broken.
245    o seaice adjoint
246      * add AREA, HEFF, HSNOW as control variable
247        (should not change lab_sea results)
248      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
249    o pkg/seaice:
250      * added computation of saltFlux in seaice_growth;
251        For time being, sea ice salinity is assumed constant
252        contribution of snow flooding to freshening of sea ice is neglected.
253        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
254        defaults to 0.0 in order to maintain backward compatibility.
255        Typical values for SEAICE_salinity are 4 to 10 g/kg.
256      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
257      * added SEAICE_availHeatFrac, which specifies fraction of surface level
258        heat content used to melt or grow ice
259      * commented out cap of HICE: it helps keep ice thinner
260      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
261      * applied OBCS T/S mask to HEFFM sea ice mask
262    
263    checkpoint59d
264    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
265     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
266     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
267    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
268     and change default value of parameter "GM_Small_Number";
269     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
270       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
271       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
272    o pkg/ecco: cost function when applying pkg/smooth to controls
273    o pkg/ctrl: add forcingPrecond run time parameter
274    o pkg/seaice:
275     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
276     - fix bug in metric terms of u-equation in LSR solver (implicit part),
277       changes verification/lab_sea
278     - rearrange implicit part of u-equation in LSR solver to make it easier to
279       read, understand, and debug. This causes changes at the truncation level.
280     - fix (serious) bug in the boundary conditions (sign error in the implicit
281       part) of the LSR solver. Changes all LSR results.
282     - fixed problem with HSNOW initialization to avoid thick snow when AREA
283       is initilized with small values - does not change lab_sea results.
284     - added HsnowFile initialization capability
285    o pkg/smooth: addition to model/src and pkg/ctrl so allow
286     initialization of pkg/smooth and application to control vector
287    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
288    o dependencies: pkg/profiles requires pkg/cal
289    o pkg/profiles:
290     - added option ALLOW_PROFILES_GENERICGRID
291         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
292         that interpolation information (grid points and coefficients) is provided
293         within the netcdf input files.
294         -> sample matlab scripts can be found in MITgcm_contrib/gael
295         that allow you to prepare netcdf input files.
296     - also modified: cleaner include statements, cleaner error print statements,
297       cleaner stops when error, and more tests of the netcdf input files consistency.
298    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
299    o pkg/seaice:
300     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
301       requires a new routine: seaice_diagnostics_fill.F
302     - make sure that seaice does not move if not forced (pressure replacement
303       method, Hibler and Ip, 1995), changes results
304     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
305     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
306       It is turned off by default (=-1.), because it changes the results.
307     - make it possible to read AREA from a file, too.
308    
309    checkpoint59c
310    o add S/R and diagnostics for oceanic mixed-layer depth
311    o move GMRedi call after all vertical mixing schemes (including KPP)
312    o pkg/thsice:
313     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
314      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
315    o pkg/obcs:
316     - bug fix for balance code
317    o pkg/seaice:
318      - allow values of SEAICE_elasticParm > 1
319      - add new parameter SEAICE_evpTauRelax as an alternative
320        to SEAICE_elasticParm
321      - make lsr boundary conditions free slip (by default), changes result
322      - add code for no slip boundary conditions for lsr
323      - set minimum of zeta to zero (and not 4e8) (changes results)
324      - add a cap on AREA after advecting AREA if seaice_growth is not called
325    o change calculation of Visbeck K:
326      - no longer depend on tapering scheme; instead, compute slope (limited
327        by GM_maxSlope). this is equivalent to what was comuted before with
328        clipping or linear tappering.
329      - fix vertical averaging (wrong by 1/2 level)
330      - leave the old version (but will not be maintained) within
331        #ifdef OLD_VISBECK_CALC / #endif
332      - update output of exp. ideal_2D_oce
333    o change error catch in calc_r_star to improve vectorization
334    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
335      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
336    o adjoint:
337      Re-organized adjoint checkpointing according to Matt Mazloff
338      (but with modifs/completions/cleanups)
339      Storing is now bundled into large arrays to optimized I/O
340      (and second step in cleanup of the_main_loop)
341    
342    checkpoint59b
343    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
344      - export/import (between ocean & coupler) fields needed for ocean DIC.
345    o pkg/seaice:
346      - get rid of three more exchanges seaice_calc_viscosities (required
347        different loop boundaries in seaice_lsr and seaice_ocean_stress)
348      - bug fix in seaice_ocean_stress (update of lab_sea required)
349      - reduce loop boundaries to necessary minimum also in seaice_evp
350      - go back to the old way of computing deltaC/Z as the adjoint likes that
351        better
352    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
353      passive tracer to an Age Tracer) + update output.txt
354    o pkg/exf:
355      - implement A-grid / C-grid selection for wind-stress input files.
356      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
357      for now, in exf_bulk_largeyeager04.F only :
358      - change implementation for case where windspeed + 2. components wind-stress
359        are read-in. AND use rhoConstFresh to convert evap.
360    o pkg/seaice:
361      - use correct EXCH_UV for wind-forcing (on A-grid).
362      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
363        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
364    o pkg/exf:
365      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
366      EXF_INTERPOLATION:
367      - merge global_with_exf/code version of exf_interp_read.F
368        to the main code ;
369      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
370        reading the file ; Important: This options needs to be defined to recover
371        previous code.
372        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
373      - no longer loose real*8 precision along the way when using exf_iprec=64.
374    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
375      - change discretisation of evp-solver in order to avoid another exchange
376        (changes lab_sea) and clean up a little
377      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
378        help the adjoint (this also changes the results slightly)
379      - add a few "_d 0" where they had been missing in seaice_evp.F
380      - cleaning up: remove unused seaice_calc_rhs.F
381    o pkg/exf: some cleaning-up:
382      - change various "constants" into runtime parameters
383      - cleaned-up Large&Yeager04 routine which should eventually
384        replace exf_bulkformulae.F (changed names of S/R and CPP)
385        and merged various ALLOW_ATM_WIND options
386     only used with thsice pkg (in thsice_get_exf.F):
387      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
388        which are used when useStabilityFct_overIce=TRUE (= the default)
389      - change default values of ice & snow emissivity and scale downward LW
390        by ice & snow emissivity.
391    o pkg/thsice:
392     fix few little problems, in thsice_calc_thickn.F:
393      - growth vertically (and not laterally) if iceFrac == iceMaskMax
394      - melt only laterally if hIce < hThinIce (as the comments say)
395      and in thsice_extend.F:
396      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
397      - start to form ice as soon as the minimum ice-volume is reachable.
398     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
399      and cpl_aim+ocn
400    o pkg/kpp
401     - move computation of surface related input fields to KPP into a new
402       subroutine kpp_forcing_surf.F
403     - remove wrong (within bi,bj loops) EXCH calls.
404     - little cleaning (add argument myThid in last position, cvs header ...)
405     - for now, fix conservation problem by exchanging KPPviscAz (may not
406       be the best fix)
407    o pkg/seaice
408     - check for inconsistent evp parameter/cpp-flag combination
409     - remove leftover errIO flat for obsolete name list error handling
410    o OpenAD
411     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
412    
413    checkpoint59a
414    o pkg/seaice: some parameter clarifications and a little bit of clean up
415    o pkg/thsice: rename run-time parameters:
416       himin       -> hIceMin
417       himin0      -> hThinIce
418       hihig       -> hThickIce
419       i0          -> i0swFrac
420       transCoef   -> bMeltCoef
421       frac_energy -> fracMelting
422      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
423       with default values (for now) that do not change the results.
424      remove old version of thsice vars advection in pkg/seaice.
425    o in FFIELDS.h:
426      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
427      - make pLoad & sIceLoad always available (but still only used if
428         ATMOSPHERIC_LOADING is #define).
429    o pkg/kpp: replaced _KPP_RL with _RL
430    o bug fixes for vertical diffusivity computations when both KPP and
431        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
432        are no longer updating the vertical diffusivity array
433        (passed as argument) but are (re-) setting those arrays.
434    o pkg/seaice: fix bug in evp solver, while doing that
435      - change (improve?) discretization of stress computations for both
436        cgrid-lsr and evp solver
437      - add a new routine to compute strain rates
438      - the above changes lab_sea results
439      - add no slip conditions for evp solver (off by default), lsr-version
440        may follow
441      - fix exchange for shear at Z-points (does not change lab_sea)
442      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
443        (to force the user to pick a time step since there is not "safe" way
444        of choosing it)
445      - add principal stress diagnostics
446      - rearrange fields for evp a little to avoid having to call a: too many
447        exchanges and b: exchanges for stress trensor components which we do
448        not have.
449      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
450        of evp, complete rewrite for lsr case (latter is does not yet work
451        in all cases)
452    o pkg/kpp: add code to have mixing in shelf ice caverns
453      - add myThid to all kpp routines (long overdue)
454    
455    checkpoint59
456    o pkg/exf:
457      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
458        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
459      - move exf header files from lower_case.h to UPPER_CASE.h ;
460        add missing cvs Header & Name
461      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
462      - add namelist param. selectStressGridPosition, exf_monFreq
463      - retire many _CLIM routines, and remove data.exf_clim
464        + params moved to data.exf
465        + climsst, climsss now handled by exf_set_gen, i.e.
466          climss?period=0 refers to constant field,
467          climss?period=-12 to monthly forcing
468      - split up namelists in data.exf
469    o pkg/seaice:
470      - remove seaice_exch and seaice_exch_uv
471      - remove superfluous exchange of theta
472      - add myThid to seaice_budget_ocean/ice
473      - add new interface for atmospheric wind forcing (C-grid only)
474        + new routine
475        + two new field (taux, tauy for stress over ice)
476        + removed one global field (DAIRN) for C-grid case only
477    o pkg/thsise
478      - 2nd set of modifs for thsice adjoint in conjunction with exf
479    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
480    
481    checkpoint58y_post
482    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
483      vertical diffusivity, similar to that in MOM4; turned on using
484      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
485      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
486    o Added capability for 3D specification of background vertical diffusion
487      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
488      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
489      "data" file that contains the 3D vertical diffusivity coefficients.
490    o ice dynamics (pkg/seaice) with thsice thermodynamics:
491      - add code within pkg thsice to advect & diffuse sea-ice fields
492      similar to (and will replace) what has been added in  seaice_advdiff.F,
493      but: - conserving Mass, Heat & Salt.
494           - better when using non-linear advection scheme (not yet fully tested)
495           - can also be used in atmospheric set-up (for now, only the diffusion).
496    
497    checkpoint58x_post
498    o IO option for global-file compact format:
499      - add options when generating topology (utils/exch2/matlab-topology-generator)
500      - add I/O capability (pkg/mdsio).
501      - adapt utils/matlab/rdmds.m to read this format.
502      for now long-line format not yet supported by pkg/mdsio (& exch2).
503    o shelfice: add a few diagnostics
504    
505    checkpoint58w_post
506    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
507      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
508      (and replace horiVertRatio in NH code).
509      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
510                         and tutorial_plume_on_slope (sensitive to truncation)
511    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
512      directly to drive seaice model (C-grid only)
513    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
514     - reintroduce computation of wind from stress,
515     - compute tau (in exf_bulkformulae.F) from windstress averaged to
516       mass points to avoid tau = 0
517     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
518    o rdmnc.m: make it work with "global" files created with gluemnc
519    o rdmnc.m : some improvements in dealing with singleton dimension
520      (tested on all testreport mnc output files).
521    o genmake2: disable pkg/profiles if netcdf test fails.
522    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
523    o move call to cal_readparms up to make calendar parameters/variable available
524      to all packages
525    
526    checkpoint58v_post
527    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
528      useDynP_inEos_Zc tested.
529    o pkg/exf: changes to properly interpolate/mask/scale initial fields
530    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
531      and portions thereof.  See read_cs.txt for description and examples.
532    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
533      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
534      following the great-circle arc between those 2 points.
535    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
536      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
537    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
538     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
539     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
540     - still needs work (not working with some options ; efficiency to improve)
541       and serious testing.
542     - use this scheme for temperature & salinity in 2 advection test exp.:
543       advect_xy & advect_xz, respectively.
544    
545    checkpoint58u_post
546    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
547    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
548    o testreport: add option "-skipdir" to skip some test.
549    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
550      momentum calculation.
551    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
552    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
553      remove checkpoint.F and the_correction_step.F (no longer used);
554      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
555    o add option (linFSConserveTr) to correct for tracer source/sink due to
556      Linear Free surface
557    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
558    o pkg/thsice: fix reading mnc-pickups
559    
560    checkpoint58t_post
561    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
562    o pkg/mdsio:
563     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
564       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
565       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
566     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
567     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
568       either MDS_READ_FIELD or MDS_WRITE_FIELD )
569     - new S/R (to replace MDSWRITEMETA), which allows to write more
570       informations (variable names, time ...) to meta files.
571     - modify rdmds.m to give back the meta file content.
572    o pkg/diagnostics: change vertical interpolation to be safer, and more
573       flexible (define p-levels to interpolate to in data.diagnostics);
574      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
575       diagnostic pointer.
576    o pkg/seaice: more cleaning up of seaice_growth, added many comments
577    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
578    o fix multi-category seaice:
579     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
580       SEAICE_MULTICATEGORY
581     - fix short wave heat flux
582    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
583       and allow to use EVP solver. Change forward lab_sea: test both EVP
584       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
585    o Initial check-in of lab_sea adjoint
586      (very similar to natl_box_adjoint/code_seaice)
587      * used C-grid and EVP solver
588      * used KPP, GM/Redi
589      * uses inAdExact=.TRUE.
590      * gradient checks fail for both ADM and TLM
591        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
592        f.d. gradients actually seem more problematic than ADM, TLM gradients;
593        issue is related to forward mismatch between g77 an ifort
594    o pkg/seaice: overhaul of thermodynamics
595     - growth.F and groatb.F are replaced by new routine seaice_growth.F
596     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
597     - move a few global fields out of SEAICE.h into seaice_growth.F and
598       make them 2D (FICE/QNETO/ ...)
599     - remove FO (it is the same as QNETO)
600     - introduce a few local fields to avoid modifying external fields such
601       as atemp, etc.
602    
603    checkpoint58s_post
604    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
605      changed exf_set_gen.F so that
606        genperiod=0 means input file is one time-constant field and
607        genperiod=-12 means input file contains 12 monthly means
608    o CG2D: use pre-computed solver main-diagonal (stored in common block);
609      this affects truncation error ; generate new output file for exp. which
610      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
611        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
612        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
613        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
614        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
615        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
616    o start implementation of deep-atmosphere and anelastic formulation
617    o verification: remove 2nd copy of input files and use script "prepare_run"
618      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
619    o mom_common/vecinv/fluxform: fix a few initialisation isssues
620    o profiles: fix for multithreaded case
621    
622    o diagnostics: rename few diags:
623      s/'PRESSURE'/'RCENTER '/g
624      s/'TICE    '/'oceFreez'/g
625      s/'TAUX    '/'oceTAUX '/g
626      s/'TAUY    '/'oceTAUY '/g
627      s/'SWFLUX  '/'oceQsw  '/g
628      s/DIFx/DFxE/g
629      s/DIFy/DFyE/g
630      and add few ocean-forcing diagnostics:
631      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
632    o modifications to pkg/seaice/growth.F and budget.F, which change results of
633      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
634      as actual snow thickness.  It now refers everywhere to effective snow
635      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
636    
637    checkpoint58r_post
638    o modifications to pkg/seaice/growth.F, which change results of
639      lab_sea experiment: fixes pertain to melting snow over open water, to
640      masking EVAP under sea ice, and to using the correct AREA variable for
641      computations of EVAP, PRECIP, HSNOW, and GHEFF
642    o add ability to read bathy, salt, and theta using MNC (off by def)
643    o add flooding algorithm and advection of HSNOW for pkg/seaice;
644      both are turned off by default and do no change any results
645    o seaice advection with pkg/thsice: a step toward the use of non-linear
646      advection scheme, but #ifdef or commented out for now (requires more EXCH).
647    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
648      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
649      in natl_box (affects results @ truncation level: update output.txt)
650    o multi-threading and IO:
651      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
652      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
653        (needed to work with SingleCpuIO): tested in all verif. exp.
654    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
655      affects the results (but none of the verification test uses this scheme).
656    o Adding some pkg/diagnostics capability to pkg/seaice
657      (will certainly be subject to changes)
658    o ctrl: adding new control variables:
659      lwflux, lwdown, evap, snowprecip, apressure, runoff
660    
661    checkpoint58q_post
662    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
663      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
664      high_res_cube configuration by 4% on Columbia.
665    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
666      add (in global_with_exf/code) a version of EXF_INTERP_READ without
667      dynamical allocation (seems to work in multi-threaded).
668    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
669      single CPU io) so that TAF does not have to see EESUPPORT.h
670    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
671    
672    checkpoint58p_post
673    o obcs: stop if obcs is used with useCDscheme = .true.
674    o shelfice:
675     - fix a sign error so that no slip at shelfice interface works
676     - remove stop for combination non-hydrostatic code and shelfice. That does
677       not mean, that the results are correct, but at least they are numerically
678       stable
679    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
680    o added adjoint exch routined for all exch*3d* routines
681      and updated flow directives
682    
683    checkpoint58o_post
684    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
685      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
686    o change controling S/R for writing pickup file (new S/R do_write_pickup)
687      and clean-up reading/writing of pickup files.
688    o fix local version of read/write pickup (NH part) in rotating_tank/code
689    o simplify EXCH interface:
690     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
691     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
692    o added the regrid package
693    o shelfice:
694     - add a simple boundary layer scheme to reduce noise
695     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
696    
697  checkpoint58n_post  checkpoint58n_post
698  o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to  o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to

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