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revision 1.529 by jmc, Mon Aug 1 13:31:57 2005 UTC revision 1.913 by jmc, Wed Nov 28 16:52:16 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 fix un-initialised variable problem (in mom_vecinv & shap_filt):
8      all experiments pass when compile with un-initilised var. checking option.
9    o added pkg/salt_plume
10    o script to test restart (for now, in MITgcm_contrib/jmc_script)
11    o pkg/seaice: new read/write pickup version.
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: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
15    o lab_sea.hb87: modify the domain & update output.hb87.txt :
16      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
17      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
18      process. Fixed here by closing the domain at the Northern boundary.
19    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
20    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
21      a set of consecutive levels in/from a 3-D array.
22    o pkg/ptracers:
23      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
24      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
25    
26    checkpoint59j
27    o in pkgs: dic, obcs, offline, rbcs:
28      standard way to compute coeff. for time interpolation between 2 time reccords
29      which retains full precision (& make results less dependent on compiler).
30      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
31    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
32      packages instead of reading ice cover and wind speed separately
33    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
34     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
35      to allow to compile customized code before the update)
36    o cleaning-up:
37      - fix CPP instruction syntax in pkg/obcs
38      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
39        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
40      - fix some threads issue in IO parts.
41    o pkg/dic:
42      - add tons of "_d 0" (--> much better testreports !)
43       and then update outputs of tutorial_global_oce_biogeo
44    o pkg/mom_fluxform:
45      add a special version of momentum advection intended to conserve momentum
46      next to a bathymetry step or a coastline edge. (default = off = #undef)
47    o new read/write pickup version:
48      - for now, only implemented for main (mdsio) pickup file.
49      - write out only what is needed to restart; merge pickup_nh , pickup_ph
50        and main pickup together.
51      - read meta file; read only what is needed to restart; stop if a field
52        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
53        if it make sense (even if the restart is not perfect).
54      - if no meta file, assume that pickup to read corresponds exactly to
55        a pickup that would currently be written.
56      - read pickup written in the old format (until checkpoint59i) if it
57        recognizes an old meta file (no field-list).
58      - add a meta file in exp. which starts from a pickup: 2 cases:
59        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
60         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
61        b) a meta file describing the content of the associated pickup file
62         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
63    o pkg/mdsio & pkg/rw:
64      - new routine to read a meta file ; new set of routine to read
65        Multiple-fields file (with meta file).
66    o added open boundary conditions capability for seaice
67        HSNOW, HSALT, UICE, and VICE
68    
69    checkpoint59i
70    o adjoint:
71      * fix multiDimAdvection adjoint
72        (partial recomputation problem by TAF for fVerT(:,:,kDown)
73        and comlev1 size definition (maxpass vs. max. number of tracers)
74      * verification/global_ocean.90x45x15 adjoint now tests
75        NLFS and multiDimAdvection using DST3 (=30)
76      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
77    o pkg/kpp: add "_d 0" to real constant (if missing);
78      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
79      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
80    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
81      for internal parameters related to restart process (formerly from PARAMS.h)
82      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
83    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
84      as argument. (only atm2d & obcs write_pickup have not yet been updated)
85    o pkg/monitor:
86      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
87      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
88      - account for deep Atmosphere factor and density factor (anelastic)
89    o added open boundary conditions capability for seaice HEFF and AREA
90    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
91      thermodynamics
92      - requires a little reorganization, which affects the testreport results
93        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
94        so that now the conservative form is tested
95      - add a few comments
96    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
97    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
98    o add new diagnostics to seaice: advective, diffusive fluxes (only for
99      multidim-advection, for scheme 2 they are not filled) and transports,
100      thermodynamic growth rates
101    o change units of EmPmR (inside the code, + within coupling interface)
102      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
103      Affects results @ truncation level (cg2d match) and update output of
104       experiments: lab_sea(6), global_ocean.90x40x15(10),
105      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
106      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
107      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
108      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
109    
110    checkpoint59h
111    o pkg/exf:
112      - improve vectorization by moving if-statement out of loops in
113        exf_mapfields, exf_radiation
114      - exf_bulkformulae.F: introduce 2D fields and vectorize code
115    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
116    o testreport:
117      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
118        monitor & update offline_exf_seaice exp. output.
119      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
120    o pkg/seaice:
121      - bug fix in the evp solver: boundary conditions were affected be
122        masking of zMax/zMin (changes results)
123      - minor bug fix in boundary conditions in seaice_calc_strainrates
124        (changes results for no_slip)
125      - seaice_lsr.F: make interpolation of eta dependent on boundaries
126      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
127      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
128        stress formulation and no-slip boundary conditions
129    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
130      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
131    o pkg/seaice: a first HSALT time stepping equation has been checked in
132    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
133      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
134      without requiring DO-IF statements
135    o pkg/thsice:
136      use continuous power-law function for partition of energy between lateral
137      melting/freezing and thinning/thickening ; old code using step function
138      still available with #undef THSICE_FRACEN_POWERLAW
139      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
140    o testreport: change AD testing : check against results/output_adm.txt
141      using same scripts as for forward test.
142    
143    checkpoint59g
144    o adjoint testing: in preparation for changing testreport:
145      - output format: cost and grad written on separated lines
146      - ad output results in directory "results" (instead of "results_ad")
147    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
148    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
149    o pkg/ecco: allow user defined cost function contributions
150    o testreport:
151      Allow to choose (per experiment) the list of tested output variables
152       and the main variable (used to issue a pass/FAIL ) ;
153      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
154      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
155      Also modify printing of summary:
156       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
157       b) echo the list of tested variables in the individual summary.txt of
158          each experiment.
159    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
160      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
161      (but still depend on the tile decompostion of the domain).
162    o pkg/seaice: change a discretization detail to make the B-grid code
163      "more symmetric". This change is likely to remove all "ridges/leads" that
164      where quasi-aligned with the grid in B-grid solutions. It may also be
165      the solution to the stress coupling issues with the B-grid.
166    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
167      remove .cvsignore from input dir. (since testreport no longer run here).
168    o pkg/thsice:
169     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
170     - fix reshaping of sea-ice just after advection:
171       melt all the ice only if ice-volume is too small.
172     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
173       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
174     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
175    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
176      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
177    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
178      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
179      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
180      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
181      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
182      -> update output.txt
183    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
184     this affects truncation error: -> update output.txt of exp:
185      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
186      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
187    
188    checkpoint59f
189    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
190    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
191      a bounded range (in forward mode)
192    o pkg/ecco, ctrl, autodiff and mom_common:
193     internal parameter controls, completements of implementations
194    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
195    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
196      (not seem any difference in testing results).
197    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
198       at face corners.
199    o pkg/generic_advdiff:
200     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
201      loop range indices for computing vertical advection tendency
202      and do the calculation in the interior only (no overlap) ;
203      for now, only implemented for SOM advection (to save CPU time).
204     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
205    o exch2 adjoint
206      First set of changes:
207      - add exch2 hand-written adjoint templates
208      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
209        This will require cleanup in pkg/autodiff/*.F
210        (changed routines currently kept separate in verif. code/)
211      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
212        that used to hide exch2 or cubed-sphere specific code
213        (commented via 'cph-exch2')
214    o pkg/seaice
215      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
216    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
217       output of global_ocean.cs32x15.thsice .
218    
219    checkpoint59e
220    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
221      for B-grid vector (not yet tested) and C-grid vector (<- only used
222      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
223    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
224      (#ifdef ALLOW_SALT_PLUME)
225    o gather_2d/scatter_2d: removed halo regions
226    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
227      scheme and the corresponding test case (under front_relax dir). For now,
228      only available with Skew-flux form and not yet tested in realistic set-up.
229      adjoint: store directives updated, but gradient checks deteriorated,
230      so maybe GM/Redi adjoint is now broken.
231    o seaice adjoint
232      * add AREA, HEFF, HSNOW as control variable
233        (should not change lab_sea results)
234      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
235    o pkg/seaice:
236      * added computation of saltFlux in seaice_growth;
237        For time being, sea ice salinity is assumed constant
238        contribution of snow flooding to freshening of sea ice is neglected.
239        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
240        defaults to 0.0 in order to maintain backward compatibility.
241        Typical values for SEAICE_salinity are 4 to 10 g/kg.
242      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
243      * added SEAICE_availHeatFrac, which specifies fraction of surface level
244        heat content used to melt or grow ice
245      * commented out cap of HICE: it helps keep ice thinner
246      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
247      * applied OBCS T/S mask to HEFFM sea ice mask
248    
249    checkpoint59d
250    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
251     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
252     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
253    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
254     and change default value of parameter "GM_Small_Number";
255     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
256       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
257       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
258    o pkg/ecco: cost function when applying pkg/smooth to controls
259    o pkg/ctrl: add forcingPrecond run time parameter
260    o pkg/seaice:
261     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
262     - fix bug in metric terms of u-equation in LSR solver (implicit part),
263       changes verification/lab_sea
264     - rearrange implicit part of u-equation in LSR solver to make it easier to
265       read, understand, and debug. This causes changes at the truncation level.
266     - fix (serious) bug in the boundary conditions (sign error in the implicit
267       part) of the LSR solver. Changes all LSR results.
268     - fixed problem with HSNOW initialization to avoid thick snow when AREA
269       is initilized with small values - does not change lab_sea results.
270     - added HsnowFile initialization capability
271    o pkg/smooth: addition to model/src and pkg/ctrl so allow
272     initialization of pkg/smooth and application to control vector
273    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
274    o dependencies: pkg/profiles requires pkg/cal
275    o pkg/profiles:
276     - added option ALLOW_PROFILES_GENERICGRID
277         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
278         that interpolation information (grid points and coefficients) is provided
279         within the netcdf input files.
280         -> sample matlab scripts can be found in MITgcm_contrib/gael
281         that allow you to prepare netcdf input files.
282     - also modified: cleaner include statements, cleaner error print statements,
283       cleaner stops when error, and more tests of the netcdf input files consistency.
284    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
285    o pkg/seaice:
286     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
287       requires a new routine: seaice_diagnostics_fill.F
288     - make sure that seaice does not move if not forced (pressure replacement
289       method, Hibler and Ip, 1995), changes results
290     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
291     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
292       It is turned off by default (=-1.), because it changes the results.
293     - make it possible to read AREA from a file, too.
294    
295    checkpoint59c
296    o add S/R and diagnostics for oceanic mixed-layer depth
297    o move GMRedi call after all vertical mixing schemes (including KPP)
298    o pkg/thsice:
299     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
300      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
301    o pkg/obcs:
302     - bug fix for balance code
303    o pkg/seaice:
304      - allow values of SEAICE_elasticParm > 1
305      - add new parameter SEAICE_evpTauRelax as an alternative
306        to SEAICE_elasticParm
307      - make lsr boundary conditions free slip (by default), changes result
308      - add code for no slip boundary conditions for lsr
309      - set minimum of zeta to zero (and not 4e8) (changes results)
310      - add a cap on AREA after advecting AREA if seaice_growth is not called
311    o change calculation of Visbeck K:
312      - no longer depend on tapering scheme; instead, compute slope (limited
313        by GM_maxSlope). this is equivalent to what was comuted before with
314        clipping or linear tappering.
315      - fix vertical averaging (wrong by 1/2 level)
316      - leave the old version (but will not be maintained) within
317        #ifdef OLD_VISBECK_CALC / #endif
318      - update output of exp. ideal_2D_oce
319    o change error catch in calc_r_star to improve vectorization
320    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
321      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
322    o adjoint:
323      Re-organized adjoint checkpointing according to Matt Mazloff
324      (but with modifs/completions/cleanups)
325      Storing is now bundled into large arrays to optimized I/O
326      (and second step in cleanup of the_main_loop)
327    
328    checkpoint59b
329    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
330      - export/import (between ocean & coupler) fields needed for ocean DIC.
331    o pkg/seaice:
332      - get rid of three more exchanges seaice_calc_viscosities (required
333        different loop boundaries in seaice_lsr and seaice_ocean_stress)
334      - bug fix in seaice_ocean_stress (update of lab_sea required)
335      - reduce loop boundaries to necessary minimum also in seaice_evp
336      - go back to the old way of computing deltaC/Z as the adjoint likes that
337        better
338    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
339      passive tracer to an Age Tracer) + update output.txt
340    o pkg/exf:
341      - implement A-grid / C-grid selection for wind-stress input files.
342      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
343      for now, in exf_bulk_largeyeager04.F only :
344      - change implementation for case where windspeed + 2. components wind-stress
345        are read-in. AND use rhoConstFresh to convert evap.
346    o pkg/seaice:
347      - use correct EXCH_UV for wind-forcing (on A-grid).
348      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
349        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
350    o pkg/exf:
351      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
352      EXF_INTERPOLATION:
353      - merge global_with_exf/code version of exf_interp_read.F
354        to the main code ;
355      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
356        reading the file ; Important: This options needs to be defined to recover
357        previous code.
358        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
359      - no longer loose real*8 precision along the way when using exf_iprec=64.
360    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
361      - change discretisation of evp-solver in order to avoid another exchange
362        (changes lab_sea) and clean up a little
363      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
364        help the adjoint (this also changes the results slightly)
365      - add a few "_d 0" where they had been missing in seaice_evp.F
366      - cleaning up: remove unused seaice_calc_rhs.F
367    o pkg/exf: some cleaning-up:
368      - change various "constants" into runtime parameters
369      - cleaned-up Large&Yeager04 routine which should eventually
370        replace exf_bulkformulae.F (changed names of S/R and CPP)
371        and merged various ALLOW_ATM_WIND options
372     only used with thsice pkg (in thsice_get_exf.F):
373      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
374        which are used when useStabilityFct_overIce=TRUE (= the default)
375      - change default values of ice & snow emissivity and scale downward LW
376        by ice & snow emissivity.
377    o pkg/thsice:
378     fix few little problems, in thsice_calc_thickn.F:
379      - growth vertically (and not laterally) if iceFrac == iceMaskMax
380      - melt only laterally if hIce < hThinIce (as the comments say)
381      and in thsice_extend.F:
382      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
383      - start to form ice as soon as the minimum ice-volume is reachable.
384     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
385      and cpl_aim+ocn
386    o pkg/kpp
387     - move computation of surface related input fields to KPP into a new
388       subroutine kpp_forcing_surf.F
389     - remove wrong (within bi,bj loops) EXCH calls.
390     - little cleaning (add argument myThid in last position, cvs header ...)
391     - for now, fix conservation problem by exchanging KPPviscAz (may not
392       be the best fix)
393    o pkg/seaice
394     - check for inconsistent evp parameter/cpp-flag combination
395     - remove leftover errIO flat for obsolete name list error handling
396    o OpenAD
397     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
398    
399    checkpoint59a
400    o pkg/seaice: some parameter clarifications and a little bit of clean up
401    o pkg/thsice: rename run-time parameters:
402       himin       -> hIceMin
403       himin0      -> hThinIce
404       hihig       -> hThickIce
405       i0          -> i0swFrac
406       transCoef   -> bMeltCoef
407       frac_energy -> fracMelting
408      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
409       with default values (for now) that do not change the results.
410      remove old version of thsice vars advection in pkg/seaice.
411    o in FFIELDS.h:
412      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
413      - make pLoad & sIceLoad always available (but still only used if
414         ATMOSPHERIC_LOADING is #define).
415    o pkg/kpp: replaced _KPP_RL with _RL
416    o bug fixes for vertical diffusivity computations when both KPP and
417        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
418        are no longer updating the vertical diffusivity array
419        (passed as argument) but are (re-) setting those arrays.
420    o pkg/seaice: fix bug in evp solver, while doing that
421      - change (improve?) discretization of stress computations for both
422        cgrid-lsr and evp solver
423      - add a new routine to compute strain rates
424      - the above changes lab_sea results
425      - add no slip conditions for evp solver (off by default), lsr-version
426        may follow
427      - fix exchange for shear at Z-points (does not change lab_sea)
428      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
429        (to force the user to pick a time step since there is not "safe" way
430        of choosing it)
431      - add principal stress diagnostics
432      - rearrange fields for evp a little to avoid having to call a: too many
433        exchanges and b: exchanges for stress trensor components which we do
434        not have.
435      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
436        of evp, complete rewrite for lsr case (latter is does not yet work
437        in all cases)
438    o pkg/kpp: add code to have mixing in shelf ice caverns
439      - add myThid to all kpp routines (long overdue)
440    
441    checkpoint59
442    o pkg/exf:
443      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
444        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
445      - move exf header files from lower_case.h to UPPER_CASE.h ;
446        add missing cvs Header & Name
447      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
448      - add namelist param. selectStressGridPosition, exf_monFreq
449      - retire many _CLIM routines, and remove data.exf_clim
450        + params moved to data.exf
451        + climsst, climsss now handled by exf_set_gen, i.e.
452          climss?period=0 refers to constant field,
453          climss?period=-12 to monthly forcing
454      - split up namelists in data.exf
455    o pkg/seaice:
456      - remove seaice_exch and seaice_exch_uv
457      - remove superfluous exchange of theta
458      - add myThid to seaice_budget_ocean/ice
459      - add new interface for atmospheric wind forcing (C-grid only)
460        + new routine
461        + two new field (taux, tauy for stress over ice)
462        + removed one global field (DAIRN) for C-grid case only
463    o pkg/thsise
464      - 2nd set of modifs for thsice adjoint in conjunction with exf
465    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
466    
467    checkpoint58y_post
468    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
469      vertical diffusivity, similar to that in MOM4; turned on using
470      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
471      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
472    o Added capability for 3D specification of background vertical diffusion
473      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
474      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
475      "data" file that contains the 3D vertical diffusivity coefficients.
476    o ice dynamics (pkg/seaice) with thsice thermodynamics:
477      - add code within pkg thsice to advect & diffuse sea-ice fields
478      similar to (and will replace) what has been added in  seaice_advdiff.F,
479      but: - conserving Mass, Heat & Salt.
480           - better when using non-linear advection scheme (not yet fully tested)
481           - can also be used in atmospheric set-up (for now, only the diffusion).
482    
483    checkpoint58x_post
484    o IO option for global-file compact format:
485      - add options when generating topology (utils/exch2/matlab-topology-generator)
486      - add I/O capability (pkg/mdsio).
487      - adapt utils/matlab/rdmds.m to read this format.
488      for now long-line format not yet supported by pkg/mdsio (& exch2).
489    o shelfice: add a few diagnostics
490    
491    checkpoint58w_post
492    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
493      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
494      (and replace horiVertRatio in NH code).
495      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
496                         and tutorial_plume_on_slope (sensitive to truncation)
497    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
498      directly to drive seaice model (C-grid only)
499    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
500     - reintroduce computation of wind from stress,
501     - compute tau (in exf_bulkformulae.F) from windstress averaged to
502       mass points to avoid tau = 0
503     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
504    o rdmnc.m: make it work with "global" files created with gluemnc
505    o rdmnc.m : some improvements in dealing with singleton dimension
506      (tested on all testreport mnc output files).
507    o genmake2: disable pkg/profiles if netcdf test fails.
508    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
509    o move call to cal_readparms up to make calendar parameters/variable available
510      to all packages
511    
512    checkpoint58v_post
513    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
514      useDynP_inEos_Zc tested.
515    o pkg/exf: changes to properly interpolate/mask/scale initial fields
516    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
517      and portions thereof.  See read_cs.txt for description and examples.
518    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
519      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
520      following the great-circle arc between those 2 points.
521    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
522      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
523    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
524     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
525     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
526     - still needs work (not working with some options ; efficiency to improve)
527       and serious testing.
528     - use this scheme for temperature & salinity in 2 advection test exp.:
529       advect_xy & advect_xz, respectively.
530    
531    checkpoint58u_post
532    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
533    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
534    o testreport: add option "-skipdir" to skip some test.
535    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
536      momentum calculation.
537    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
538    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
539      remove checkpoint.F and the_correction_step.F (no longer used);
540      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
541    o add option (linFSConserveTr) to correct for tracer source/sink due to
542      Linear Free surface
543    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
544    o pkg/thsice: fix reading mnc-pickups
545    
546    checkpoint58t_post
547    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
548    o pkg/mdsio:
549     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
550       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
551       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
552     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
553     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
554       either MDS_READ_FIELD or MDS_WRITE_FIELD )
555     - new S/R (to replace MDSWRITEMETA), which allows to write more
556       informations (variable names, time ...) to meta files.
557     - modify rdmds.m to give back the meta file content.
558    o pkg/diagnostics: change vertical interpolation to be safer, and more
559       flexible (define p-levels to interpolate to in data.diagnostics);
560      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
561       diagnostic pointer.
562    o pkg/seaice: more cleaning up of seaice_growth, added many comments
563    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
564    o fix multi-category seaice:
565     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
566       SEAICE_MULTICATEGORY
567     - fix short wave heat flux
568    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
569       and allow to use EVP solver. Change forward lab_sea: test both EVP
570       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
571    o Initial check-in of lab_sea adjoint
572      (very similar to natl_box_adjoint/code_seaice)
573      * used C-grid and EVP solver
574      * used KPP, GM/Redi
575      * uses inAdExact=.TRUE.
576      * gradient checks fail for both ADM and TLM
577        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
578        f.d. gradients actually seem more problematic than ADM, TLM gradients;
579        issue is related to forward mismatch between g77 an ifort
580    o pkg/seaice: overhaul of thermodynamics
581     - growth.F and groatb.F are replaced by new routine seaice_growth.F
582     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
583     - move a few global fields out of SEAICE.h into seaice_growth.F and
584       make them 2D (FICE/QNETO/ ...)
585     - remove FO (it is the same as QNETO)
586     - introduce a few local fields to avoid modifying external fields such
587       as atemp, etc.
588    
589    checkpoint58s_post
590    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
591      changed exf_set_gen.F so that
592        genperiod=0 means input file is one time-constant field and
593        genperiod=-12 means input file contains 12 monthly means
594    o CG2D: use pre-computed solver main-diagonal (stored in common block);
595      this affects truncation error ; generate new output file for exp. which
596      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
597        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
598        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
599        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
600        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
601        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
602    o start implementation of deep-atmosphere and anelastic formulation
603    o verification: remove 2nd copy of input files and use script "prepare_run"
604      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
605    o mom_common/vecinv/fluxform: fix a few initialisation isssues
606    o profiles: fix for multithreaded case
607    
608    o diagnostics: rename few diags:
609      s/'PRESSURE'/'RCENTER '/g
610      s/'TICE    '/'oceFreez'/g
611      s/'TAUX    '/'oceTAUX '/g
612      s/'TAUY    '/'oceTAUY '/g
613      s/'SWFLUX  '/'oceQsw  '/g
614      s/DIFx/DFxE/g
615      s/DIFy/DFyE/g
616      and add few ocean-forcing diagnostics:
617      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
618    o modifications to pkg/seaice/growth.F and budget.F, which change results of
619      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
620      as actual snow thickness.  It now refers everywhere to effective snow
621      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
622    
623    checkpoint58r_post
624    o modifications to pkg/seaice/growth.F, which change results of
625      lab_sea experiment: fixes pertain to melting snow over open water, to
626      masking EVAP under sea ice, and to using the correct AREA variable for
627      computations of EVAP, PRECIP, HSNOW, and GHEFF
628    o add ability to read bathy, salt, and theta using MNC (off by def)
629    o add flooding algorithm and advection of HSNOW for pkg/seaice;
630      both are turned off by default and do no change any results
631    o seaice advection with pkg/thsice: a step toward the use of non-linear
632      advection scheme, but #ifdef or commented out for now (requires more EXCH).
633    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
634      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
635      in natl_box (affects results @ truncation level: update output.txt)
636    o multi-threading and IO:
637      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
638      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
639        (needed to work with SingleCpuIO): tested in all verif. exp.
640    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
641      affects the results (but none of the verification test uses this scheme).
642    o Adding some pkg/diagnostics capability to pkg/seaice
643      (will certainly be subject to changes)
644    o ctrl: adding new control variables:
645      lwflux, lwdown, evap, snowprecip, apressure, runoff
646    
647    checkpoint58q_post
648    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
649      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
650      high_res_cube configuration by 4% on Columbia.
651    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
652      add (in global_with_exf/code) a version of EXF_INTERP_READ without
653      dynamical allocation (seems to work in multi-threaded).
654    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
655      single CPU io) so that TAF does not have to see EESUPPORT.h
656    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
657    
658    checkpoint58p_post
659    o obcs: stop if obcs is used with useCDscheme = .true.
660    o shelfice:
661     - fix a sign error so that no slip at shelfice interface works
662     - remove stop for combination non-hydrostatic code and shelfice. That does
663       not mean, that the results are correct, but at least they are numerically
664       stable
665    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
666    o added adjoint exch routined for all exch*3d* routines
667      and updated flow directives
668    
669    checkpoint58o_post
670    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
671      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
672    o change controling S/R for writing pickup file (new S/R do_write_pickup)
673      and clean-up reading/writing of pickup files.
674    o fix local version of read/write pickup (NH part) in rotating_tank/code
675    o simplify EXCH interface:
676     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
677     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
678    o added the regrid package
679    o shelfice:
680     - add a simple boundary layer scheme to reduce noise
681     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
682    
683    checkpoint58n_post
684    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
685       local variable (not in common block).
686    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
687      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
688      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
689        to work with SingleCpuIO.
690    o add "_d 0" to real constant of pkg/cfc subroutines ;
691       update exp. cfc_exemple & tutorial_cfc_offline output files.
692    o multi-threading and IO:
693      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
694        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
695      - barrier before and after reading.
696      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
697      - avoid using MDS_WRITELOCAL for LAND pkg output.
698      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
699        common-block variables ; Allows multi-threading with master-thread IO.
700    o change default MAX_NO_THREADS from 32 to 4 ;
701      and stop cleanly when MAX_NO_THREADS is too small.
702    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
703    
704    checkpoint58m_post
705    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
706       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
707    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
708       keep global_ocean.90x40x15 (for AD testing) with former secondary test
709       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
710    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
711        add MITgcm_tutorials (= code + all the tutorials)
712    o ecco, option to compute cost for total ssh (mean+anom)
713    o consistent with addition of ptracer and ssh in pkg/profiles
714    o profiles: adding ptracer and ssh
715    o testreport: change multi-test output-file name
716      (from output.txt.{name} to output.{name}.txt)
717    o profiles: now ok for mutli-tiles case
718    o seaice: add 4 parameters for different advection schemes for area,
719      (effective) seaice thickness, enthalphy, and snow height. Their default
720      is the standard parameter SEAICEadvScheme
721    o calc_gw:
722     - add cosFacU in zonal viscous flux (harmonic.visc.).
723     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
724       of tutorial_plume_on_slope.
725    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
726    o calc_gw: true flux-form, account for horizontal grid spacing.
727      update rotating_tank results, but not plume_on_slope (affected at
728      truncation level, 11 digits).
729    
730    checkpoint58l_post
731    o calc_gw:
732     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
733     - remove side-drag for now (need to fix it); update plume_on_slope results.
734     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
735    o commit code to make SST/SSS weights spatially variable
736      (based on either variable in-situ or variable initial T/S weights)
737    o pkg/ecco:
738      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
739        now based on horizontally varying weights wthetaLev, wsaltLev
740      * cost_averagesflags now returns year indices in addition to day, month
741      * sflux balance is performed on annual basis
742        (sflxumm, sfluxmm2, bal_sfluxmm)
743      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
744        including separate counting and multipliers
745    o pkg/rbcs
746      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
747    
748    checkpoint58k_post
749    o testreport:
750     - always build in dir. "build" (if not there, mkdir build instead of building
751       & running in input)
752     - run in dir run (if it exists), in build otherwise.
753     - call prepare_run (if input/prepare_run exists)
754     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
755    o pkg/exf modifications to interpolation and rotation routines for more
756       reasonable treatment of North Pole singularity: for tracers North Pole
757       value is set to northernmost zonal-mean value, for zonal velocity it is
758       set to zero, and for meridional velocity it is set to northernmost value.
759    o pkg/exf/exf_check_range.F
760     - add tile index to diagnostics and move stop statement to the very
761       end of the routine.
762    o pkg/diagnostics: (diagnostics_main_init.F)
763      define title of isomorphic variables according to the current config.
764    o pkg/thsice with pkg/seaice dynamics:
765    - fix domain of computation (interior only, required for exf) and do exchanges
766    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
767    o towards a standard way of dealing with multi-threading in MONITOR
768      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
769    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
770       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
771    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
772    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
773    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
774       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
775    o tracer advection:
776     - clean-up and simplify calc_common_factors.F
777     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
778       advection subroutine (but still not used within DST advection S/R)
779    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
780    
781    checkpoint58j_post
782    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
783      from file (collects calls previously in FORWARD_STEP)
784    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
785    o adjoint store dir. adjusted accordingly
786    o genmake2
787      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
788    
789    checkpoint58i_post
790    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
791      on wind stress (SEAICEstressFactor defaults to 1.)
792    o Total number of Timers is finite (<=40): comment out 2 non-essential one
793      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
794    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
795      on CS-grid: no longer loosing mass.
796    o exf & curvilinear-grid: no longer modify longitude xC & xG.
797    o pkg/ggl90: fix sloppy output and fix a bug
798    o pkg/seaice: added SEAICEuseEVPpickup parameter
799      - Set to false in order to start EVP solver with
800        non-EVP pickup files when using SEAICEuseEVP
801      - fix sign error in diffusion in seaice_calc_rhs
802    
803    checkpoint58h_post
804    * Modifications for bottom topography control
805      o replace hFacC by _hFacC at various places
806      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
807      o add non-self-adjoint cg2d_nsa
808      o update autodiff support routines
809      o re-initialise hfac after ctrl_depth_ini
810      o works for 5x5 box, doesnt work for global_ocean.90x40x15
811    * Adding verification for 5x5 box (4-layer) bottom topography control
812    
813    checkpoint58g_post
814    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
815       used for mean seasonal cycle, mean diurnal cycle); add an example
816       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
817    o pkg/ggl90:
818      - add parameter (minimum surface kinetic energy)
819      - fix bug (avoiding division by zero)
820    o couple pkg/thsice to pkg/seaice:
821      - modify advection in seaice to accomodate new scalar fields to be advected
822      - only muliDimAdection scheme work with seaice/thsice
823      - mapping of thsice-variables to seaice-variables, back and forth
824      - does not break the verification experiments, but does not give the
825        desired results either
826    o pkg/seaice
827      - make (default) second order advection a bit less confusing?
828    
829    checkpoint58f_post
830    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
831      to pkg/seaice):
832      - new routines thsice_map_exf and thsice_get_exf provide the interface
833      - add an additional formal parameter to thsice_solve4temp
834    o pkg/exf:
835      - add new fields wspeed, snowprecip (to be able to couple to thsice)
836      - correct Stefan-Boltzmann constant
837      - new parameter for longwave surface emittance
838      - separate some stuff from exf_bulkformulae into new routines  
839        exf_radiation, exf_wind
840      - add new parameters and constants: longwave emissivity for ocean, ice
841        and snow, evaporation parameters over ice
842      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
843        either wind from stress or stress from wind
844    o pkg/thSIce:
845    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
846    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
847       and THSICE_CALC_THICKN
848    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
849    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
850      to make debugging easier.
851    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
852    o pkg/bulk_force:
853      - clean-up comments and parameters ;
854      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
855    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
856      generate new output for test-experiment: aim.5l_cs.thSI
857    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
858      testreport accordingly
859    
860    checkpoint58e_post
861    o SEAICE_CGRID adjoint done
862    o R_STAR adjoint implemented.
863      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
864      * need to sort out init. of h0facc, etc.
865    o Make pkg/profile fully independent of ecco,cost, etc. stuff
866      to be able to use it in pure forward.
867    
868    checkpoint58d_post
869    o upgrade simple test-experiment to tutorial example:
870     step.1: duplicate the experiment and (step.2) will remove the old copy.
871      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
872      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
873      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
874      tutorial_global_oce_biogeo    <- copy of dic_example
875      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
876      tutorial_plume_on_slope       <- copy of plume_on_slope
877      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
878      tutorial_global_oce_optim     <- empty for now (David ?)
879      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
880     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
881    o correct a sign problem in cost_scat.F
882    o obcs and ptracers: fix boundary conditions for advections schemes
883      with larger stencil
884    o thsice adjoint: start
885    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
886      completeness
887    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
888      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
889    o ptracers adjoint:
890      * avoid extensive recomputatations
891      * fix missing re-init. of gptr (missed by TAF)
892    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
893      me to turn off the excessive output to STDOUT that this package produces
894    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
895      and add those terms in Vector-Invariant formulation.
896    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
897      if the control period (xx_hfluxperiod etc) is 0
898    o in profiles pkg, clean routines and fix details
899    o in ecco pkg, reading ssh data:
900      fix problem in case the model does not start at iter0=0
901    o fix mnc-pickup/restart for ptracers
902    o new package prifiles:
903      code to compute profile-based cost by Gael Forget
904      (modifs in ecco, ctrl, autodiff)
905    o Benign bug fix in initialization (spotted by M. Mazloff) of
906      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
907    
908    checkpoint58c_post
909    o adjoint: finish NLFS adjoint and provide reference output in
910      verification/global_ocean.90x40x15/results_ad_nlfs
911    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
912      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
913      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
914      with SEAICE_CGRID defined.
915    o move calendarDumps from "data" to "data.cal" and clean-up the code
916      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
917    o add useEXF & useCAL flags (for now, set in hard-coded way)
918    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
919      (were missing in NH mode, and wrong in quasihydrostatic mode).
920      waiting for Chris updated version of calc_gw to add those CALLs.
921    o fix bug in quasihydrostatic S/R ;
922      add a test for this option: global_ocean.90x40x15.qshyd
923    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
924      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
925    o add on/off flag useOffLine for package OFFLINE
926    o seaice:
927      - modify advection so that it works also on the C-grid
928      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
929        problem in multi-tile runs with C-grid
930      - add flags for clipping ice velocities and/or masking solver forcing
931      - fix drag (ocean on ice) formulation and a bug that caused noise in the
932        C-grid solver
933      - added a few comments to seaice_diffusion.F
934      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
935        are now exclusive)
936      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
937        required re-ordering the code a little:
938       + make DAIRN global variable (defined in SEAICE)
939       + move computation of the viscosities eta and zeta into a new separate
940         routine (because I need to recompute them in seaice_ocean_stress.F)
941    
942    checkpoint58b_post
943    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
944      update output.txt of exp. aim.5l_cs.thSI
945    o various mnc cleanups and improvements:
946      + shrink lookup tables by factor of ~4
947      + better error reporting when running out of lookup space
948      + able to handle longer path/file names (up to 500 chars)
949    o adjoint:
950      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
951      - TBD: "hidden" mom_vecinv recomp. in dynamics
952    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
953     (allow to differentiate between forcing components using new integer flags:
954      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
955     and add new flag to put Dissipation tendency out of Adams-Bashforth.
956    o ecco
957      - enable trend removal from SSH anomaly obs.
958    o adjoint
959      - a fix for PmEpR when #undef EXACT_CONSERV
960      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
961      - try to fix "hidden" recomp. in forward_step for NLFS
962        (NLFS seems broken sometimes after I checked it in)
963    o seaice:
964     - add c-grid version of the dynamic solver:
965       + three new routines that are the c-grid substitute lsr, dynsolver
966         and ostres
967       + put a few fields that were local to dynsolver into global common
968         blocks, so that I can move the computation of stresses etc into
969         seaice_lsr (saves coding but may break the adjoint).
970     - replace more hardwired parameters by runtime parameters
971     - add ice masks that mask the rhs of the implicit solvers where there
972       is no ice (commented out in seaice_dynsolver, because i am not sure
973       if this works properly), eventually this should replace the clipping
974       of ice velocities in seaice_dynsolver to +/-40cm/s.
975    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
976      include it only where its needed
977    o move balancing of fluxes before the call of external_forcing_surf
978    o seaice:
979      - correct units of turning angles (now they are really in degrees)
980      - move computation of GWATX/Y out of main routine into dynsolver
981      - initialize GWATX/Y in seaice_init
982    o Apply mask on Fresh-Water flux (needed for SSH forcing).
983      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
984    o seaice: add runtime flags for turning angles (default to zero)
985    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
986      and trend from exf forcing and ctrl control adjustments
987    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
988      (since checkpoint57x_post)
989    o change the default rotation period to 86164.s = the Earth rotation
990    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
991      and based on a reference stratification. Tested within hs94.cs-32x32x5.
992    o seaice advection: add code for choosing between the default (2nd order
993      central differences) and multiDim advection schemes provided by
994      pkg/generic_advdiff
995    o seaice:
996      - removed all references to SEAICE_GRID.h fields from
997        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
998        (cubed-sphere configuration will change a little)
999      - grid computations in seaice_init are obsolete now.
1000      - cleaned up code a little so that is easier to read (hopefully).
1001      - added new (better?) discretizations of default advection and diffusion
1002        (turn on with SEAICEuseFluxForm)
1003      - replace 1 in 3d global fields by kSurface in growth.F
1004      
1005    checkpoint58a_post
1006    o seaice:
1007      - bug fix in advect.F
1008    o shelfice:
1009      - separate shelfice load anomaly from pload (breaks with time
1010        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1011        Its default is 0., but it may be computed more cleverly from (unknown)
1012        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1013        done offline. A good approximation of the pressure load anomaly is
1014        necessary to avoid large initial adjustment processes underneath
1015        deep-reaching shelfice.
1016      - small fix in ISOMIP shelfice_thermodynamics
1017      - add more sophisticated thermodynamics of Hellmer (1989), this is
1018        now the default
1019      - give a few constants more intuitive names
1020    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1021      if bulk formulae are used in long integration (especially EmPmR). Turn
1022      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1023      if balancePrintMean, the imbalance that is substracted is printed to
1024      STDOUT.
1025    o fix bug (typo) in obcs_apply_eta.F
1026    o add a new package shelfice which enables us to model the circulation
1027      underneath shelf-ice with draughts of hundreds of meters.
1028     - works
1029     - to do: + include improved thermodynamics
1030              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1031                instead of new field kTopC
1032              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1033                instead of new field R_shelfIce and new code in ini_depth.F
1034                and ini_mask_etc.F?
1035              + adjust vertical mixing schemes?
1036    o seaice pkg:
1037     - add a cpp-flag to include a simple formula for a salinity dependent
1038       freezing point of sea water at the surface
1039     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1040       meridional stresses are now different (and hopefully correct)
1041    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1042       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1043       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1044    o pkg/diagnostics: add options and parameters for regional-statistics
1045       diagnostics ; define regions by reading a region-mask from a file
1046       (might add other options later)
1047    o pkg/bulk_force:
1048     - add option and parameters to use AIM surface-flux formulae.
1049     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1050       others forcing fields (defined in PARM05, parameter file "data") are loaded
1051       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1052     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1053     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1054     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1055       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1056     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1057    
1058    checkpoint58
1059    o add "--embed-source" option to genmake2 which, when the supporting
1060      tools can be compiled (as determined by genmake2) will turn on the
1061      embed_files package which then embeds the entire MITgcm source code
1062      (*.[fFhc] + Makefile) used for the build within the executable
1063      - requested by CNH but off by default
1064      - adds a paltry <9MB to the mitgcmuv executable in most cases
1065      - only writes the output when useEMBEDSRC in eedata is true
1066    o clean up 3-dim. relaxation codes:
1067      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1068      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1069      * Thanks to Tom Haine for testing!
1070    
1071    checkpoint57z_post
1072    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1073      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1074    o fix the pickup behavior for obcs in combination with ptracers
1075    o fix a bug in ptracers_external_fields_load
1076    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1077      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1078    o transfered surface NH pressure to eta field (if exactConserv).
1079    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1080         and update lab_sea output.txt file.
1081    o completing 3-dim. relaxation code: additional term
1082         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1083      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1084      * At compile time, in "EXF_OPTIONS.h" set
1085          #define  ALLOW_CLIMTEMP_RELAXATION
1086          #define  ALLOW_CLIMSALT_RELAXATION
1087      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1088          tauThetaClimRelax3Dim = 15552000.0,
1089          tauSaltClimRelax3Dim  = 15552000.0,
1090      * 3 cases:
1091          1) Use a constant-in-time 3-dim. field
1092          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1093          3) Real-time relax. to time-evolving prescribed field
1094    o Adding Laplacian-type smoothness constraint on
1095      initial and boundary (forcing) controls (ic, bc)
1096      * enable at compile-time via
1097        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1098      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1099      * Absolute scale somewhat unclear so far
1100      * no area weighting was included since no other cost term does so far
1101    
1102    checkpoint57y_post
1103    First step for a NLFS adjoint
1104    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1105    o new init. routines for calc_r_star, calc_surf_dr
1106    o still need to deal with ini_masks_etc
1107    o testreport seemed happy
1108    checkpoint57y_pre
1109    
1110    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1111    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1112    o add new offset feature to offline pkg (plus minor cleanup)
1113    o cfc fixes for final year of integration
1114    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1115      be in GCHEM_OPTIONS).
1116    
1117    checkpoint57x_post
1118    o fix testreport Pb in multiple test experiment.
1119    o cleanup our namelist syntax in verification:
1120      - make it more F95 standards compliant (some work still needed)
1121      - allows the vast majority of our tests to work with gfortran
1122    o Non-Hydrostatic:
1123     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1124     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1125    o Allow to apply AB on T,S rather than on AB(gT,gS):
1126     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1127     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1128       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1129     - need a "clever" read_pickup to restart from the other AB formulation
1130    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1131    o remove some unused variables (reduces number of compiler warnings)
1132    o adjoint
1133      * Disable useVariableViscosity for adjoint for time being
1134        (there are a number of extensive recomputations)
1135      * Initialize certain variables needed for adjoint
1136    
1137    checkpoint57w_post
1138    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1139                 fix the singleCpuIO RS version of MDSWRITEFIELD
1140       and add a WARNING if using globalFiles=T with multi-processors.
1141    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1142      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1143    o tracer advection scheme:
1144      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1145       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1146       was not very convenient).
1147      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1148       (further tests needed for the implicit DST & Flux-Limiter schemes).
1149    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1150      and sRef for convenience, handy, when you want to initialize
1151      ptracers in a large domain with a constant non-zero value. Also,
1152      untangle ptracers_init.F a little.
1153    
1154    checkpoint57v_post
1155    o change dome exp. to use variable viscosity in side-drag terms.
1156    o remove all the files from the cfc_offline test since they are now
1157      incorporated into tutorial_cfc_offline which has been producing
1158      identical results for a few days of testing
1159    o add new parameter: sideDragFactor to enable half-slip-side BC
1160      and change side-drag S/R to use viscosity from mom_calc_visc
1161      (can switch back by setting sideDragFactor=0.); affects results at
1162      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1163       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1164    o vorticity & strain are now computed without masking, to account for
1165      no-slip-side BC in variable viscosity calculation ; mask is applied
1166      anyway later on, before computing advection/coriolis terms.
1167    o modify exp4 to test new obcs support for reading from external files
1168      and for passive tracers
1169    o fix behavior of ptracers_monitor when monitor output is written to a
1170      netcdf-file; still not independent of monitor.F (writes in the same
1171      file).
1172    o change default value of tRef (put a uniform, meaningful value for ocean
1173      & atmos) and initialize sRef (was missing, as Martin mentioned).
1174    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1175      to be proportional to enstrophy dissipation length.  Thus,
1176       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1177      This is now consistent with Smagorinsky and with the manual.
1178    
1179    checkpoint57u_post
1180    o OBCS and PTRACERS: add open boundary support for passive tracers
1181      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1182        OB-values from file; this is not different from the way theta and salinity
1183        are treated
1184      - however, Orlanski-radiation conditions are not supported, and the model
1185        will stop if you use pTracers and Orlanski at the same time.
1186      - beefed up the rountine obcs_external_fields_load: now only those open
1187        boundary values are overwritten with values from files for which there
1188        are really files, otherwise the OB-fields remain untouched. This makes
1189        it possible to use different OBs at different ends of the domain (as
1190        with EXF)
1191    o reduce number of exch calls in shap_filt (s2).
1192    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1193      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1194    
1195    checkpoint57t_post
1196    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1197    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1198      same truncation, independent of the face number: affects affects several
1199      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1200    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1201      note that biharmonic viscosity + no-slip was not tested in any experiment.
1202    o fix bug in non-linear free-surf side-drag ; generate new output for
1203      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1204    o make mnc honor the writeBinaryPrec flag for most kinds of output
1205    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1206    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1207      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1208    o add brackets in multi-terms sum to get same truncation, independent of
1209      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1210      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1211    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1212      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1213      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1214      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1215      Suggested values of viscosity parameters found in mom_calc_visc.
1216      Many new viscosity diagnostics available.
1217    
1218    checkpoint57s_post
1219    o Add clearing-house for viscosity calculations, mom_calc_visc and
1220      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1221      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1222      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1223      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1224      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1225      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1226      ViscAhStrain and viscAhTension are now retired.
1227    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1228    o In response to JMC's bug report, genmake2 now ignores any soft-links
1229      that it finds in the *current* directory when searching for files.
1230      Soft-links found in any other source directories will still work as
1231      they did before.
1232    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1233      a C routine to unlimit the stack size
1234    o mnc-ify pkg/aim snapshot vars
1235    o mnc-ify pkg/land as requested by Daniel
1236    o various changes to mnc including:
1237      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1238      - output can now be grouped so that all files within a group
1239          change the ITER portion of their names in lock-step together
1240      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1241          and works with both EXCH1 and EXCH2 (but needs more testing)
1242      - writing works for all verification test cases w/ g77 on Linux
1243    
1244    checkpoint57r_post
1245    o make MNC variable initialization happen earlier
1246    o add diagnostics for (almost) each term of the momentum Eq.
1247    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1248    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1249    o remove MINIMAL_TAVE_OUTPUT option ;
1250      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1251    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1252      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1253    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1254    o add time-dependent SST, SSS control
1255    o cost terms in ecco/ modularized (new cost_generic.F)
1256    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1257    o new infrastructure for seaice model vs. obs misfits in seaice/
1258      * driver from the_main_loop.F is seaice_cost_driver.F
1259      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1260      * gradient check in Exp. 6a of natl_box_adjoint/
1261    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1262      (see README file)
1263    
1264    checkpoint57q_post
1265    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1266    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1267      - bug was reported by Jean-Michel and Ian Fenty
1268    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1269      update exp. cpl_aim+ocn output.
1270    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1271      Needed for high-res. runs with large global files
1272      to be able to limit tapelev size
1273    o Changed some tests for adjoint:
1274      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1275      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1276      * global_ocean.90x40x15/ back to default 3-level checkpointing
1277    o Modifications to enable scripted COMMON to MODULE conversion
1278      * verification/OpenAD/code/ has necessary scripts and description;
1279      * converts, compiles and runs successfully;
1280    
1281  checkpoint57p_post  checkpoint57p_post
1282  o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F  o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1283  o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED  o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED

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