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revision 1.715 by mlosch, Mon Aug 14 16:53:08 2006 UTC revision 1.928 by jmc, Tue Dec 18 16:19:53 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/salt_plume: added various options for salt plume depth
8      criterion and for vertical distribution of the salt
9    
10    checkpoint59l
11    o pkg/ptracers: new version of ptracers pickup:
12      read meta file and write only fields which are needed to restart.
13      ( same logic as main pickup file ; also using pickupStrictlyMatch )
14    o pkg/seaice:
15      - add timescale for melting due to warm mixed layer as a means of
16        setting SEAICE_availHeatFrac more conveniently
17      - add a CPP-flag/runtime parameter check for flooding algorithm
18      - reformulated availHeat in seaice_growth.F to be independent of AREA
19    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
20      unit changes
21    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
22    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
23      SX vector computer.
24    o pkg/seaice:
25      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
26        seaice forcing fields can now be read only through pkg/exf
27      - removed some unused halos
28    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
29    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
30      or U/VICE from U/VWIND before computing U/VSTRESS
31    
32    checkpoint59k
33    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
34      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
35    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
36      all experiments pass when compile with un-initialised var. checking option.
37    o added pkg/salt_plume
38    o script to test restart (for now, in MITgcm_contrib/jmc_script)
39    o pkg/seaice: new read/write pickup version.
40      read meta file and write only fields which are needed to restart.
41      ( same logic as main pickup file ; also using pickupStrictlyMatch )
42    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
43    o lab_sea.hb87: modify the domain & update output.hb87.txt :
44      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
45      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
46      process. Fixed here by closing the domain at the Northern boundary.
47    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
48    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
49      a set of consecutive levels in/from a 3-D array.
50    o pkg/ptracers:
51      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
52      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
53    
54    checkpoint59j
55    o in pkgs: dic, obcs, offline, rbcs:
56      standard way to compute coeff. for time interpolation between 2 time reccords
57      which retains full precision (& make results less dependent on compiler).
58      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
59    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
60      packages instead of reading ice cover and wind speed separately
61    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
62     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
63      to allow to compile customized code before the update)
64    o cleaning-up:
65      - fix CPP instruction syntax in pkg/obcs
66      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
67        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
68      - fix some threads issue in IO parts.
69    o pkg/dic:
70      - add tons of "_d 0" (--> much better testreports !)
71       and then update outputs of tutorial_global_oce_biogeo
72    o pkg/mom_fluxform:
73      add a special version of momentum advection intended to conserve momentum
74      next to a bathymetry step or a coastline edge. (default = off = #undef)
75    o new read/write pickup version:
76      - for now, only implemented for main (mdsio) pickup file.
77      - write out only what is needed to restart; merge pickup_nh , pickup_ph
78        and main pickup together.
79      - read meta file; read only what is needed to restart; stop if a field
80        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
81        if it make sense (even if the restart is not perfect).
82      - if no meta file, assume that pickup to read corresponds exactly to
83        a pickup that would currently be written.
84      - read pickup written in the old format (until checkpoint59i) if it
85        recognizes an old meta file (no field-list).
86      - add a meta file in exp. which starts from a pickup: 2 cases:
87        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
88         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
89        b) a meta file describing the content of the associated pickup file
90         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
91    o pkg/mdsio & pkg/rw:
92      - new routine to read a meta file ; new set of routine to read
93        Multiple-fields file (with meta file).
94    o added open boundary conditions capability for seaice
95        HSNOW, HSALT, UICE, and VICE
96    
97    checkpoint59i
98    o adjoint:
99      * fix multiDimAdvection adjoint
100        (partial recomputation problem by TAF for fVerT(:,:,kDown)
101        and comlev1 size definition (maxpass vs. max. number of tracers)
102      * verification/global_ocean.90x45x15 adjoint now tests
103        NLFS and multiDimAdvection using DST3 (=30)
104      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
105    o pkg/kpp: add "_d 0" to real constant (if missing);
106      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
107      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
108    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
109      for internal parameters related to restart process (formerly from PARAMS.h)
110      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
111    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
112      as argument. (only atm2d & obcs write_pickup have not yet been updated)
113    o pkg/monitor:
114      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
115      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
116      - account for deep Atmosphere factor and density factor (anelastic)
117    o added open boundary conditions capability for seaice HEFF and AREA
118    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
119      thermodynamics
120      - requires a little reorganization, which affects the testreport results
121        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
122        so that now the conservative form is tested
123      - add a few comments
124    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
125    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
126    o add new diagnostics to seaice: advective, diffusive fluxes (only for
127      multidim-advection, for scheme 2 they are not filled) and transports,
128      thermodynamic growth rates
129    o change units of EmPmR (inside the code, + within coupling interface)
130      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
131      Affects results @ truncation level (cg2d match) and update output of
132       experiments: lab_sea(6), global_ocean.90x40x15(10),
133      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
134      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
135      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
136      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
137    
138    checkpoint59h
139    o pkg/exf:
140      - improve vectorization by moving if-statement out of loops in
141        exf_mapfields, exf_radiation
142      - exf_bulkformulae.F: introduce 2D fields and vectorize code
143    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
144    o testreport:
145      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
146        monitor & update offline_exf_seaice exp. output.
147      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
148    o pkg/seaice:
149      - bug fix in the evp solver: boundary conditions were affected be
150        masking of zMax/zMin (changes results)
151      - minor bug fix in boundary conditions in seaice_calc_strainrates
152        (changes results for no_slip)
153      - seaice_lsr.F: make interpolation of eta dependent on boundaries
154      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
155      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
156        stress formulation and no-slip boundary conditions
157    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
158      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
159    o pkg/seaice: a first HSALT time stepping equation has been checked in
160    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
161      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
162      without requiring DO-IF statements
163    o pkg/thsice:
164      use continuous power-law function for partition of energy between lateral
165      melting/freezing and thinning/thickening ; old code using step function
166      still available with #undef THSICE_FRACEN_POWERLAW
167      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
168    o testreport: change AD testing : check against results/output_adm.txt
169      using same scripts as for forward test.
170    
171    checkpoint59g
172    o adjoint testing: in preparation for changing testreport:
173      - output format: cost and grad written on separated lines
174      - ad output results in directory "results" (instead of "results_ad")
175    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
176    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
177    o pkg/ecco: allow user defined cost function contributions
178    o testreport:
179      Allow to choose (per experiment) the list of tested output variables
180       and the main variable (used to issue a pass/FAIL ) ;
181      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
182      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
183      Also modify printing of summary:
184       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
185       b) echo the list of tested variables in the individual summary.txt of
186          each experiment.
187    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
188      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
189      (but still depend on the tile decompostion of the domain).
190    o pkg/seaice: change a discretization detail to make the B-grid code
191      "more symmetric". This change is likely to remove all "ridges/leads" that
192      where quasi-aligned with the grid in B-grid solutions. It may also be
193      the solution to the stress coupling issues with the B-grid.
194    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
195      remove .cvsignore from input dir. (since testreport no longer run here).
196    o pkg/thsice:
197     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
198     - fix reshaping of sea-ice just after advection:
199       melt all the ice only if ice-volume is too small.
200     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
201       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
202     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
203    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
204      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
205    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
206      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
207      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
208      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
209      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
210      -> update output.txt
211    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
212     this affects truncation error: -> update output.txt of exp:
213      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
214      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
215    
216    checkpoint59f
217    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
218    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
219      a bounded range (in forward mode)
220    o pkg/ecco, ctrl, autodiff and mom_common:
221     internal parameter controls, completements of implementations
222    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
223    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
224      (not seem any difference in testing results).
225    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
226       at face corners.
227    o pkg/generic_advdiff:
228     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
229      loop range indices for computing vertical advection tendency
230      and do the calculation in the interior only (no overlap) ;
231      for now, only implemented for SOM advection (to save CPU time).
232     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
233    o exch2 adjoint
234      First set of changes:
235      - add exch2 hand-written adjoint templates
236      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
237        This will require cleanup in pkg/autodiff/*.F
238        (changed routines currently kept separate in verif. code/)
239      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
240        that used to hide exch2 or cubed-sphere specific code
241        (commented via 'cph-exch2')
242    o pkg/seaice
243      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
244    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
245       output of global_ocean.cs32x15.thsice .
246    
247    checkpoint59e
248    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
249      for B-grid vector (not yet tested) and C-grid vector (<- only used
250      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
251    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
252      (#ifdef ALLOW_SALT_PLUME)
253    o gather_2d/scatter_2d: removed halo regions
254    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
255      scheme and the corresponding test case (under front_relax dir). For now,
256      only available with Skew-flux form and not yet tested in realistic set-up.
257      adjoint: store directives updated, but gradient checks deteriorated,
258      so maybe GM/Redi adjoint is now broken.
259    o seaice adjoint
260      * add AREA, HEFF, HSNOW as control variable
261        (should not change lab_sea results)
262      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
263    o pkg/seaice:
264      * added computation of saltFlux in seaice_growth;
265        For time being, sea ice salinity is assumed constant
266        contribution of snow flooding to freshening of sea ice is neglected.
267        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
268        defaults to 0.0 in order to maintain backward compatibility.
269        Typical values for SEAICE_salinity are 4 to 10 g/kg.
270      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
271      * added SEAICE_availHeatFrac, which specifies fraction of surface level
272        heat content used to melt or grow ice
273      * commented out cap of HICE: it helps keep ice thinner
274      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
275      * applied OBCS T/S mask to HEFFM sea ice mask
276    
277    checkpoint59d
278    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
279     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
280     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
281    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
282     and change default value of parameter "GM_Small_Number";
283     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
284       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
285       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
286    o pkg/ecco: cost function when applying pkg/smooth to controls
287    o pkg/ctrl: add forcingPrecond run time parameter
288    o pkg/seaice:
289     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
290     - fix bug in metric terms of u-equation in LSR solver (implicit part),
291       changes verification/lab_sea
292     - rearrange implicit part of u-equation in LSR solver to make it easier to
293       read, understand, and debug. This causes changes at the truncation level.
294     - fix (serious) bug in the boundary conditions (sign error in the implicit
295       part) of the LSR solver. Changes all LSR results.
296     - fixed problem with HSNOW initialization to avoid thick snow when AREA
297       is initilized with small values - does not change lab_sea results.
298     - added HsnowFile initialization capability
299    o pkg/smooth: addition to model/src and pkg/ctrl so allow
300     initialization of pkg/smooth and application to control vector
301    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
302    o dependencies: pkg/profiles requires pkg/cal
303    o pkg/profiles:
304     - added option ALLOW_PROFILES_GENERICGRID
305         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
306         that interpolation information (grid points and coefficients) is provided
307         within the netcdf input files.
308         -> sample matlab scripts can be found in MITgcm_contrib/gael
309         that allow you to prepare netcdf input files.
310     - also modified: cleaner include statements, cleaner error print statements,
311       cleaner stops when error, and more tests of the netcdf input files consistency.
312    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
313    o pkg/seaice:
314     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
315       requires a new routine: seaice_diagnostics_fill.F
316     - make sure that seaice does not move if not forced (pressure replacement
317       method, Hibler and Ip, 1995), changes results
318     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
319     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
320       It is turned off by default (=-1.), because it changes the results.
321     - make it possible to read AREA from a file, too.
322    
323    checkpoint59c
324    o add S/R and diagnostics for oceanic mixed-layer depth
325    o move GMRedi call after all vertical mixing schemes (including KPP)
326    o pkg/thsice:
327     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
328      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
329    o pkg/obcs:
330     - bug fix for balance code
331    o pkg/seaice:
332      - allow values of SEAICE_elasticParm > 1
333      - add new parameter SEAICE_evpTauRelax as an alternative
334        to SEAICE_elasticParm
335      - make lsr boundary conditions free slip (by default), changes result
336      - add code for no slip boundary conditions for lsr
337      - set minimum of zeta to zero (and not 4e8) (changes results)
338      - add a cap on AREA after advecting AREA if seaice_growth is not called
339    o change calculation of Visbeck K:
340      - no longer depend on tapering scheme; instead, compute slope (limited
341        by GM_maxSlope). this is equivalent to what was comuted before with
342        clipping or linear tappering.
343      - fix vertical averaging (wrong by 1/2 level)
344      - leave the old version (but will not be maintained) within
345        #ifdef OLD_VISBECK_CALC / #endif
346      - update output of exp. ideal_2D_oce
347    o change error catch in calc_r_star to improve vectorization
348    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
349      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
350    o adjoint:
351      Re-organized adjoint checkpointing according to Matt Mazloff
352      (but with modifs/completions/cleanups)
353      Storing is now bundled into large arrays to optimized I/O
354      (and second step in cleanup of the_main_loop)
355    
356    checkpoint59b
357    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
358      - export/import (between ocean & coupler) fields needed for ocean DIC.
359    o pkg/seaice:
360      - get rid of three more exchanges seaice_calc_viscosities (required
361        different loop boundaries in seaice_lsr and seaice_ocean_stress)
362      - bug fix in seaice_ocean_stress (update of lab_sea required)
363      - reduce loop boundaries to necessary minimum also in seaice_evp
364      - go back to the old way of computing deltaC/Z as the adjoint likes that
365        better
366    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
367      passive tracer to an Age Tracer) + update output.txt
368    o pkg/exf:
369      - implement A-grid / C-grid selection for wind-stress input files.
370      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
371      for now, in exf_bulk_largeyeager04.F only :
372      - change implementation for case where windspeed + 2. components wind-stress
373        are read-in. AND use rhoConstFresh to convert evap.
374    o pkg/seaice:
375      - use correct EXCH_UV for wind-forcing (on A-grid).
376      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
377        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
378    o pkg/exf:
379      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
380      EXF_INTERPOLATION:
381      - merge global_with_exf/code version of exf_interp_read.F
382        to the main code ;
383      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
384        reading the file ; Important: This options needs to be defined to recover
385        previous code.
386        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
387      - no longer loose real*8 precision along the way when using exf_iprec=64.
388    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
389      - change discretisation of evp-solver in order to avoid another exchange
390        (changes lab_sea) and clean up a little
391      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
392        help the adjoint (this also changes the results slightly)
393      - add a few "_d 0" where they had been missing in seaice_evp.F
394      - cleaning up: remove unused seaice_calc_rhs.F
395    o pkg/exf: some cleaning-up:
396      - change various "constants" into runtime parameters
397      - cleaned-up Large&Yeager04 routine which should eventually
398        replace exf_bulkformulae.F (changed names of S/R and CPP)
399        and merged various ALLOW_ATM_WIND options
400     only used with thsice pkg (in thsice_get_exf.F):
401      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
402        which are used when useStabilityFct_overIce=TRUE (= the default)
403      - change default values of ice & snow emissivity and scale downward LW
404        by ice & snow emissivity.
405    o pkg/thsice:
406     fix few little problems, in thsice_calc_thickn.F:
407      - growth vertically (and not laterally) if iceFrac == iceMaskMax
408      - melt only laterally if hIce < hThinIce (as the comments say)
409      and in thsice_extend.F:
410      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
411      - start to form ice as soon as the minimum ice-volume is reachable.
412     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
413      and cpl_aim+ocn
414    o pkg/kpp
415     - move computation of surface related input fields to KPP into a new
416       subroutine kpp_forcing_surf.F
417     - remove wrong (within bi,bj loops) EXCH calls.
418     - little cleaning (add argument myThid in last position, cvs header ...)
419     - for now, fix conservation problem by exchanging KPPviscAz (may not
420       be the best fix)
421    o pkg/seaice
422     - check for inconsistent evp parameter/cpp-flag combination
423     - remove leftover errIO flat for obsolete name list error handling
424    o OpenAD
425     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
426    
427    checkpoint59a
428    o pkg/seaice: some parameter clarifications and a little bit of clean up
429    o pkg/thsice: rename run-time parameters:
430       himin       -> hIceMin
431       himin0      -> hThinIce
432       hihig       -> hThickIce
433       i0          -> i0swFrac
434       transCoef   -> bMeltCoef
435       frac_energy -> fracMelting
436      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
437       with default values (for now) that do not change the results.
438      remove old version of thsice vars advection in pkg/seaice.
439    o in FFIELDS.h:
440      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
441      - make pLoad & sIceLoad always available (but still only used if
442         ATMOSPHERIC_LOADING is #define).
443    o pkg/kpp: replaced _KPP_RL with _RL
444    o bug fixes for vertical diffusivity computations when both KPP and
445        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
446        are no longer updating the vertical diffusivity array
447        (passed as argument) but are (re-) setting those arrays.
448    o pkg/seaice: fix bug in evp solver, while doing that
449      - change (improve?) discretization of stress computations for both
450        cgrid-lsr and evp solver
451      - add a new routine to compute strain rates
452      - the above changes lab_sea results
453      - add no slip conditions for evp solver (off by default), lsr-version
454        may follow
455      - fix exchange for shear at Z-points (does not change lab_sea)
456      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
457        (to force the user to pick a time step since there is not "safe" way
458        of choosing it)
459      - add principal stress diagnostics
460      - rearrange fields for evp a little to avoid having to call a: too many
461        exchanges and b: exchanges for stress trensor components which we do
462        not have.
463      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
464        of evp, complete rewrite for lsr case (latter is does not yet work
465        in all cases)
466    o pkg/kpp: add code to have mixing in shelf ice caverns
467      - add myThid to all kpp routines (long overdue)
468    
469    checkpoint59
470    o pkg/exf:
471      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
472        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
473      - move exf header files from lower_case.h to UPPER_CASE.h ;
474        add missing cvs Header & Name
475      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
476      - add namelist param. selectStressGridPosition, exf_monFreq
477      - retire many _CLIM routines, and remove data.exf_clim
478        + params moved to data.exf
479        + climsst, climsss now handled by exf_set_gen, i.e.
480          climss?period=0 refers to constant field,
481          climss?period=-12 to monthly forcing
482      - split up namelists in data.exf
483    o pkg/seaice:
484      - remove seaice_exch and seaice_exch_uv
485      - remove superfluous exchange of theta
486      - add myThid to seaice_budget_ocean/ice
487      - add new interface for atmospheric wind forcing (C-grid only)
488        + new routine
489        + two new field (taux, tauy for stress over ice)
490        + removed one global field (DAIRN) for C-grid case only
491    o pkg/thsise
492      - 2nd set of modifs for thsice adjoint in conjunction with exf
493    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
494    
495    checkpoint58y_post
496    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
497      vertical diffusivity, similar to that in MOM4; turned on using
498      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
499      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
500    o Added capability for 3D specification of background vertical diffusion
501      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
502      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
503      "data" file that contains the 3D vertical diffusivity coefficients.
504    o ice dynamics (pkg/seaice) with thsice thermodynamics:
505      - add code within pkg thsice to advect & diffuse sea-ice fields
506      similar to (and will replace) what has been added in  seaice_advdiff.F,
507      but: - conserving Mass, Heat & Salt.
508           - better when using non-linear advection scheme (not yet fully tested)
509           - can also be used in atmospheric set-up (for now, only the diffusion).
510    
511    checkpoint58x_post
512    o IO option for global-file compact format:
513      - add options when generating topology (utils/exch2/matlab-topology-generator)
514      - add I/O capability (pkg/mdsio).
515      - adapt utils/matlab/rdmds.m to read this format.
516      for now long-line format not yet supported by pkg/mdsio (& exch2).
517    o shelfice: add a few diagnostics
518    
519    checkpoint58w_post
520    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
521      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
522      (and replace horiVertRatio in NH code).
523      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
524                         and tutorial_plume_on_slope (sensitive to truncation)
525    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
526      directly to drive seaice model (C-grid only)
527    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
528     - reintroduce computation of wind from stress,
529     - compute tau (in exf_bulkformulae.F) from windstress averaged to
530       mass points to avoid tau = 0
531     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
532    o rdmnc.m: make it work with "global" files created with gluemnc
533    o rdmnc.m : some improvements in dealing with singleton dimension
534      (tested on all testreport mnc output files).
535    o genmake2: disable pkg/profiles if netcdf test fails.
536    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
537    o move call to cal_readparms up to make calendar parameters/variable available
538      to all packages
539    
540    checkpoint58v_post
541    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
542      useDynP_inEos_Zc tested.
543    o pkg/exf: changes to properly interpolate/mask/scale initial fields
544    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
545      and portions thereof.  See read_cs.txt for description and examples.
546    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
547      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
548      following the great-circle arc between those 2 points.
549    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
550      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
551    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
552     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
553     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
554     - still needs work (not working with some options ; efficiency to improve)
555       and serious testing.
556     - use this scheme for temperature & salinity in 2 advection test exp.:
557       advect_xy & advect_xz, respectively.
558    
559    checkpoint58u_post
560    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
561    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
562    o testreport: add option "-skipdir" to skip some test.
563    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
564      momentum calculation.
565    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
566    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
567      remove checkpoint.F and the_correction_step.F (no longer used);
568      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
569    o add option (linFSConserveTr) to correct for tracer source/sink due to
570      Linear Free surface
571    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
572    o pkg/thsice: fix reading mnc-pickups
573    
574    checkpoint58t_post
575    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
576    o pkg/mdsio:
577     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
578       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
579       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
580     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
581     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
582       either MDS_READ_FIELD or MDS_WRITE_FIELD )
583     - new S/R (to replace MDSWRITEMETA), which allows to write more
584       informations (variable names, time ...) to meta files.
585     - modify rdmds.m to give back the meta file content.
586    o pkg/diagnostics: change vertical interpolation to be safer, and more
587       flexible (define p-levels to interpolate to in data.diagnostics);
588      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
589       diagnostic pointer.
590    o pkg/seaice: more cleaning up of seaice_growth, added many comments
591    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
592    o fix multi-category seaice:
593     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
594       SEAICE_MULTICATEGORY
595     - fix short wave heat flux
596    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
597       and allow to use EVP solver. Change forward lab_sea: test both EVP
598       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
599    o Initial check-in of lab_sea adjoint
600      (very similar to natl_box_adjoint/code_seaice)
601      * used C-grid and EVP solver
602      * used KPP, GM/Redi
603      * uses inAdExact=.TRUE.
604      * gradient checks fail for both ADM and TLM
605        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
606        f.d. gradients actually seem more problematic than ADM, TLM gradients;
607        issue is related to forward mismatch between g77 an ifort
608    o pkg/seaice: overhaul of thermodynamics
609     - growth.F and groatb.F are replaced by new routine seaice_growth.F
610     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
611     - move a few global fields out of SEAICE.h into seaice_growth.F and
612       make them 2D (FICE/QNETO/ ...)
613     - remove FO (it is the same as QNETO)
614     - introduce a few local fields to avoid modifying external fields such
615       as atemp, etc.
616    
617    checkpoint58s_post
618    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
619      changed exf_set_gen.F so that
620        genperiod=0 means input file is one time-constant field and
621        genperiod=-12 means input file contains 12 monthly means
622    o CG2D: use pre-computed solver main-diagonal (stored in common block);
623      this affects truncation error ; generate new output file for exp. which
624      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
625        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
626        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
627        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
628        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
629        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
630    o start implementation of deep-atmosphere and anelastic formulation
631    o verification: remove 2nd copy of input files and use script "prepare_run"
632      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
633    o mom_common/vecinv/fluxform: fix a few initialisation isssues
634    o profiles: fix for multithreaded case
635    
636    o diagnostics: rename few diags:
637      s/'PRESSURE'/'RCENTER '/g
638      s/'TICE    '/'oceFreez'/g
639      s/'TAUX    '/'oceTAUX '/g
640      s/'TAUY    '/'oceTAUY '/g
641      s/'SWFLUX  '/'oceQsw  '/g
642      s/DIFx/DFxE/g
643      s/DIFy/DFyE/g
644      and add few ocean-forcing diagnostics:
645      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
646    o modifications to pkg/seaice/growth.F and budget.F, which change results of
647      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
648      as actual snow thickness.  It now refers everywhere to effective snow
649      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
650    
651    checkpoint58r_post
652    o modifications to pkg/seaice/growth.F, which change results of
653      lab_sea experiment: fixes pertain to melting snow over open water, to
654      masking EVAP under sea ice, and to using the correct AREA variable for
655      computations of EVAP, PRECIP, HSNOW, and GHEFF
656    o add ability to read bathy, salt, and theta using MNC (off by def)
657    o add flooding algorithm and advection of HSNOW for pkg/seaice;
658      both are turned off by default and do no change any results
659    o seaice advection with pkg/thsice: a step toward the use of non-linear
660      advection scheme, but #ifdef or commented out for now (requires more EXCH).
661    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
662      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
663      in natl_box (affects results @ truncation level: update output.txt)
664    o multi-threading and IO:
665      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
666      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
667        (needed to work with SingleCpuIO): tested in all verif. exp.
668    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
669      affects the results (but none of the verification test uses this scheme).
670    o Adding some pkg/diagnostics capability to pkg/seaice
671      (will certainly be subject to changes)
672    o ctrl: adding new control variables:
673      lwflux, lwdown, evap, snowprecip, apressure, runoff
674    
675    checkpoint58q_post
676    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
677      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
678      high_res_cube configuration by 4% on Columbia.
679    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
680      add (in global_with_exf/code) a version of EXF_INTERP_READ without
681      dynamical allocation (seems to work in multi-threaded).
682    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
683      single CPU io) so that TAF does not have to see EESUPPORT.h
684    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
685    
686    checkpoint58p_post
687    o obcs: stop if obcs is used with useCDscheme = .true.
688    o shelfice:
689     - fix a sign error so that no slip at shelfice interface works
690     - remove stop for combination non-hydrostatic code and shelfice. That does
691       not mean, that the results are correct, but at least they are numerically
692       stable
693    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
694    o added adjoint exch routined for all exch*3d* routines
695      and updated flow directives
696    
697    checkpoint58o_post
698    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
699      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
700    o change controling S/R for writing pickup file (new S/R do_write_pickup)
701      and clean-up reading/writing of pickup files.
702    o fix local version of read/write pickup (NH part) in rotating_tank/code
703    o simplify EXCH interface:
704     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
705     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
706    o added the regrid package
707    o shelfice:
708     - add a simple boundary layer scheme to reduce noise
709     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
710    
711  checkpoint58n_post  checkpoint58n_post
712  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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