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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.912 by dimitri, Wed Nov 28 00:18:16 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 adding precip control xx_precip  o added pkg/salt_plume
8  o moved ptracer ctrl index 17 -> 32  o script to test restart (for now, in MITgcm_contrib/jmc_script)
9    o pkg/seaice: new read/write pickup version.
10      read meta file and write only fields which are needed to restart.
11      ( same logic as main pickup file ; also using pickupStrictlyMatch )
12    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
13    o lab_sea.hb87: modify the domain & update output.hb87.txt :
14      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
15      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
16      process. Fixed here by closing the domain at the Northern boundary.
17    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
18    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
19      a set of consecutive levels in/from a 3-D array.
20    o pkg/ptracers:
21      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
22      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
23    
24    checkpoint59j
25    o in pkgs: dic, obcs, offline, rbcs:
26      standard way to compute coeff. for time interpolation between 2 time reccords
27      which retains full precision (& make results less dependent on compiler).
28      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
29    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
30      packages instead of reading ice cover and wind speed separately
31    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
32     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
33      to allow to compile customized code before the update)
34    o cleaning-up:
35      - fix CPP instruction syntax in pkg/obcs
36      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
37        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
38      - fix some threads issue in IO parts.
39    o pkg/dic:
40      - add tons of "_d 0" (--> much better testreports !)
41       and then update outputs of tutorial_global_oce_biogeo
42    o pkg/mom_fluxform:
43      add a special version of momentum advection intended to conserve momentum
44      next to a bathymetry step or a coastline edge. (default = off = #undef)
45    o new read/write pickup version:
46      - for now, only implemented for main (mdsio) pickup file.
47      - write out only what is needed to restart; merge pickup_nh , pickup_ph
48        and main pickup together.
49      - read meta file; read only what is needed to restart; stop if a field
50        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
51        if it make sense (even if the restart is not perfect).
52      - if no meta file, assume that pickup to read corresponds exactly to
53        a pickup that would currently be written.
54      - read pickup written in the old format (until checkpoint59i) if it
55        recognizes an old meta file (no field-list).
56      - add a meta file in exp. which starts from a pickup: 2 cases:
57        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
58         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
59        b) a meta file describing the content of the associated pickup file
60         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
61    o pkg/mdsio & pkg/rw:
62      - new routine to read a meta file ; new set of routine to read
63        Multiple-fields file (with meta file).
64    o added open boundary conditions capability for seaice
65        HSNOW, HSALT, UICE, and VICE
66    
67    checkpoint59i
68    o adjoint:
69      * fix multiDimAdvection adjoint
70        (partial recomputation problem by TAF for fVerT(:,:,kDown)
71        and comlev1 size definition (maxpass vs. max. number of tracers)
72      * verification/global_ocean.90x45x15 adjoint now tests
73        NLFS and multiDimAdvection using DST3 (=30)
74      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
75    o pkg/kpp: add "_d 0" to real constant (if missing);
76      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
77      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
78    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
79      for internal parameters related to restart process (formerly from PARAMS.h)
80      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
81    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
82      as argument. (only atm2d & obcs write_pickup have not yet been updated)
83    o pkg/monitor:
84      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
85      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
86      - account for deep Atmosphere factor and density factor (anelastic)
87    o added open boundary conditions capability for seaice HEFF and AREA
88    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
89      thermodynamics
90      - requires a little reorganization, which affects the testreport results
91        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
92        so that now the conservative form is tested
93      - add a few comments
94    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
95    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
96    o add new diagnostics to seaice: advective, diffusive fluxes (only for
97      multidim-advection, for scheme 2 they are not filled) and transports,
98      thermodynamic growth rates
99    o change units of EmPmR (inside the code, + within coupling interface)
100      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
101      Affects results @ truncation level (cg2d match) and update output of
102       experiments: lab_sea(6), global_ocean.90x40x15(10),
103      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
104      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
105      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
106      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
107    
108    checkpoint59h
109    o pkg/exf:
110      - improve vectorization by moving if-statement out of loops in
111        exf_mapfields, exf_radiation
112      - exf_bulkformulae.F: introduce 2D fields and vectorize code
113    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
114    o testreport:
115      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
116        monitor & update offline_exf_seaice exp. output.
117      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
118    o pkg/seaice:
119      - bug fix in the evp solver: boundary conditions were affected be
120        masking of zMax/zMin (changes results)
121      - minor bug fix in boundary conditions in seaice_calc_strainrates
122        (changes results for no_slip)
123      - seaice_lsr.F: make interpolation of eta dependent on boundaries
124      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
125      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
126        stress formulation and no-slip boundary conditions
127    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
128      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
129    o pkg/seaice: a first HSALT time stepping equation has been checked in
130    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
131      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
132      without requiring DO-IF statements
133    o pkg/thsice:
134      use continuous power-law function for partition of energy between lateral
135      melting/freezing and thinning/thickening ; old code using step function
136      still available with #undef THSICE_FRACEN_POWERLAW
137      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
138    o testreport: change AD testing : check against results/output_adm.txt
139      using same scripts as for forward test.
140    
141    checkpoint59g
142    o adjoint testing: in preparation for changing testreport:
143      - output format: cost and grad written on separated lines
144      - ad output results in directory "results" (instead of "results_ad")
145    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
146    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
147    o pkg/ecco: allow user defined cost function contributions
148    o testreport:
149      Allow to choose (per experiment) the list of tested output variables
150       and the main variable (used to issue a pass/FAIL ) ;
151      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
152      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
153      Also modify printing of summary:
154       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
155       b) echo the list of tested variables in the individual summary.txt of
156          each experiment.
157    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
158      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
159      (but still depend on the tile decompostion of the domain).
160    o pkg/seaice: change a discretization detail to make the B-grid code
161      "more symmetric". This change is likely to remove all "ridges/leads" that
162      where quasi-aligned with the grid in B-grid solutions. It may also be
163      the solution to the stress coupling issues with the B-grid.
164    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
165      remove .cvsignore from input dir. (since testreport no longer run here).
166    o pkg/thsice:
167     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
168     - fix reshaping of sea-ice just after advection:
169       melt all the ice only if ice-volume is too small.
170     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
171       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
172     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
173    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
174      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
175    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
176      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
177      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
178      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
179      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
180      -> update output.txt
181    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
182     this affects truncation error: -> update output.txt of exp:
183      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
184      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
185    
186    checkpoint59f
187    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
188    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
189      a bounded range (in forward mode)
190    o pkg/ecco, ctrl, autodiff and mom_common:
191     internal parameter controls, completements of implementations
192    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
193    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
194      (not seem any difference in testing results).
195    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
196       at face corners.
197    o pkg/generic_advdiff:
198     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
199      loop range indices for computing vertical advection tendency
200      and do the calculation in the interior only (no overlap) ;
201      for now, only implemented for SOM advection (to save CPU time).
202     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
203    o exch2 adjoint
204      First set of changes:
205      - add exch2 hand-written adjoint templates
206      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
207        This will require cleanup in pkg/autodiff/*.F
208        (changed routines currently kept separate in verif. code/)
209      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
210        that used to hide exch2 or cubed-sphere specific code
211        (commented via 'cph-exch2')
212    o pkg/seaice
213      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
214    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
215       output of global_ocean.cs32x15.thsice .
216    
217    checkpoint59e
218    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
219      for B-grid vector (not yet tested) and C-grid vector (<- only used
220      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
221    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
222      (#ifdef ALLOW_SALT_PLUME)
223    o gather_2d/scatter_2d: removed halo regions
224    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
225      scheme and the corresponding test case (under front_relax dir). For now,
226      only available with Skew-flux form and not yet tested in realistic set-up.
227      adjoint: store directives updated, but gradient checks deteriorated,
228      so maybe GM/Redi adjoint is now broken.
229    o seaice adjoint
230      * add AREA, HEFF, HSNOW as control variable
231        (should not change lab_sea results)
232      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
233    o pkg/seaice:
234      * added computation of saltFlux in seaice_growth;
235        For time being, sea ice salinity is assumed constant
236        contribution of snow flooding to freshening of sea ice is neglected.
237        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
238        defaults to 0.0 in order to maintain backward compatibility.
239        Typical values for SEAICE_salinity are 4 to 10 g/kg.
240      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
241      * added SEAICE_availHeatFrac, which specifies fraction of surface level
242        heat content used to melt or grow ice
243      * commented out cap of HICE: it helps keep ice thinner
244      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
245      * applied OBCS T/S mask to HEFFM sea ice mask
246    
247    checkpoint59d
248    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
249     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
250     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
251    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
252     and change default value of parameter "GM_Small_Number";
253     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
254       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
255       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
256    o pkg/ecco: cost function when applying pkg/smooth to controls
257    o pkg/ctrl: add forcingPrecond run time parameter
258    o pkg/seaice:
259     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
260     - fix bug in metric terms of u-equation in LSR solver (implicit part),
261       changes verification/lab_sea
262     - rearrange implicit part of u-equation in LSR solver to make it easier to
263       read, understand, and debug. This causes changes at the truncation level.
264     - fix (serious) bug in the boundary conditions (sign error in the implicit
265       part) of the LSR solver. Changes all LSR results.
266     - fixed problem with HSNOW initialization to avoid thick snow when AREA
267       is initilized with small values - does not change lab_sea results.
268     - added HsnowFile initialization capability
269    o pkg/smooth: addition to model/src and pkg/ctrl so allow
270     initialization of pkg/smooth and application to control vector
271    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
272    o dependencies: pkg/profiles requires pkg/cal
273    o pkg/profiles:
274     - added option ALLOW_PROFILES_GENERICGRID
275         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
276         that interpolation information (grid points and coefficients) is provided
277         within the netcdf input files.
278         -> sample matlab scripts can be found in MITgcm_contrib/gael
279         that allow you to prepare netcdf input files.
280     - also modified: cleaner include statements, cleaner error print statements,
281       cleaner stops when error, and more tests of the netcdf input files consistency.
282    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
283    o pkg/seaice:
284     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
285       requires a new routine: seaice_diagnostics_fill.F
286     - make sure that seaice does not move if not forced (pressure replacement
287       method, Hibler and Ip, 1995), changes results
288     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
289     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
290       It is turned off by default (=-1.), because it changes the results.
291     - make it possible to read AREA from a file, too.
292    
293    checkpoint59c
294    o add S/R and diagnostics for oceanic mixed-layer depth
295    o move GMRedi call after all vertical mixing schemes (including KPP)
296    o pkg/thsice:
297     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
298      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
299    o pkg/obcs:
300     - bug fix for balance code
301    o pkg/seaice:
302      - allow values of SEAICE_elasticParm > 1
303      - add new parameter SEAICE_evpTauRelax as an alternative
304        to SEAICE_elasticParm
305      - make lsr boundary conditions free slip (by default), changes result
306      - add code for no slip boundary conditions for lsr
307      - set minimum of zeta to zero (and not 4e8) (changes results)
308      - add a cap on AREA after advecting AREA if seaice_growth is not called
309    o change calculation of Visbeck K:
310      - no longer depend on tapering scheme; instead, compute slope (limited
311        by GM_maxSlope). this is equivalent to what was comuted before with
312        clipping or linear tappering.
313      - fix vertical averaging (wrong by 1/2 level)
314      - leave the old version (but will not be maintained) within
315        #ifdef OLD_VISBECK_CALC / #endif
316      - update output of exp. ideal_2D_oce
317    o change error catch in calc_r_star to improve vectorization
318    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
319      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
320    o adjoint:
321      Re-organized adjoint checkpointing according to Matt Mazloff
322      (but with modifs/completions/cleanups)
323      Storing is now bundled into large arrays to optimized I/O
324      (and second step in cleanup of the_main_loop)
325    
326    checkpoint59b
327    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
328      - export/import (between ocean & coupler) fields needed for ocean DIC.
329    o pkg/seaice:
330      - get rid of three more exchanges seaice_calc_viscosities (required
331        different loop boundaries in seaice_lsr and seaice_ocean_stress)
332      - bug fix in seaice_ocean_stress (update of lab_sea required)
333      - reduce loop boundaries to necessary minimum also in seaice_evp
334      - go back to the old way of computing deltaC/Z as the adjoint likes that
335        better
336    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
337      passive tracer to an Age Tracer) + update output.txt
338    o pkg/exf:
339      - implement A-grid / C-grid selection for wind-stress input files.
340      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
341      for now, in exf_bulk_largeyeager04.F only :
342      - change implementation for case where windspeed + 2. components wind-stress
343        are read-in. AND use rhoConstFresh to convert evap.
344    o pkg/seaice:
345      - use correct EXCH_UV for wind-forcing (on A-grid).
346      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
347        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
348    o pkg/exf:
349      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
350      EXF_INTERPOLATION:
351      - merge global_with_exf/code version of exf_interp_read.F
352        to the main code ;
353      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
354        reading the file ; Important: This options needs to be defined to recover
355        previous code.
356        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
357      - no longer loose real*8 precision along the way when using exf_iprec=64.
358    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
359      - change discretisation of evp-solver in order to avoid another exchange
360        (changes lab_sea) and clean up a little
361      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
362        help the adjoint (this also changes the results slightly)
363      - add a few "_d 0" where they had been missing in seaice_evp.F
364      - cleaning up: remove unused seaice_calc_rhs.F
365    o pkg/exf: some cleaning-up:
366      - change various "constants" into runtime parameters
367      - cleaned-up Large&Yeager04 routine which should eventually
368        replace exf_bulkformulae.F (changed names of S/R and CPP)
369        and merged various ALLOW_ATM_WIND options
370     only used with thsice pkg (in thsice_get_exf.F):
371      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
372        which are used when useStabilityFct_overIce=TRUE (= the default)
373      - change default values of ice & snow emissivity and scale downward LW
374        by ice & snow emissivity.
375    o pkg/thsice:
376     fix few little problems, in thsice_calc_thickn.F:
377      - growth vertically (and not laterally) if iceFrac == iceMaskMax
378      - melt only laterally if hIce < hThinIce (as the comments say)
379      and in thsice_extend.F:
380      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
381      - start to form ice as soon as the minimum ice-volume is reachable.
382     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
383      and cpl_aim+ocn
384    o pkg/kpp
385     - move computation of surface related input fields to KPP into a new
386       subroutine kpp_forcing_surf.F
387     - remove wrong (within bi,bj loops) EXCH calls.
388     - little cleaning (add argument myThid in last position, cvs header ...)
389     - for now, fix conservation problem by exchanging KPPviscAz (may not
390       be the best fix)
391    o pkg/seaice
392     - check for inconsistent evp parameter/cpp-flag combination
393     - remove leftover errIO flat for obsolete name list error handling
394    o OpenAD
395     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
396    
397    checkpoint59a
398    o pkg/seaice: some parameter clarifications and a little bit of clean up
399    o pkg/thsice: rename run-time parameters:
400       himin       -> hIceMin
401       himin0      -> hThinIce
402       hihig       -> hThickIce
403       i0          -> i0swFrac
404       transCoef   -> bMeltCoef
405       frac_energy -> fracMelting
406      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
407       with default values (for now) that do not change the results.
408      remove old version of thsice vars advection in pkg/seaice.
409    o in FFIELDS.h:
410      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
411      - make pLoad & sIceLoad always available (but still only used if
412         ATMOSPHERIC_LOADING is #define).
413    o pkg/kpp: replaced _KPP_RL with _RL
414    o bug fixes for vertical diffusivity computations when both KPP and
415        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
416        are no longer updating the vertical diffusivity array
417        (passed as argument) but are (re-) setting those arrays.
418    o pkg/seaice: fix bug in evp solver, while doing that
419      - change (improve?) discretization of stress computations for both
420        cgrid-lsr and evp solver
421      - add a new routine to compute strain rates
422      - the above changes lab_sea results
423      - add no slip conditions for evp solver (off by default), lsr-version
424        may follow
425      - fix exchange for shear at Z-points (does not change lab_sea)
426      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
427        (to force the user to pick a time step since there is not "safe" way
428        of choosing it)
429      - add principal stress diagnostics
430      - rearrange fields for evp a little to avoid having to call a: too many
431        exchanges and b: exchanges for stress trensor components which we do
432        not have.
433      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
434        of evp, complete rewrite for lsr case (latter is does not yet work
435        in all cases)
436    o pkg/kpp: add code to have mixing in shelf ice caverns
437      - add myThid to all kpp routines (long overdue)
438    
439    checkpoint59
440    o pkg/exf:
441      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
442        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
443      - move exf header files from lower_case.h to UPPER_CASE.h ;
444        add missing cvs Header & Name
445      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
446      - add namelist param. selectStressGridPosition, exf_monFreq
447      - retire many _CLIM routines, and remove data.exf_clim
448        + params moved to data.exf
449        + climsst, climsss now handled by exf_set_gen, i.e.
450          climss?period=0 refers to constant field,
451          climss?period=-12 to monthly forcing
452      - split up namelists in data.exf
453    o pkg/seaice:
454      - remove seaice_exch and seaice_exch_uv
455      - remove superfluous exchange of theta
456      - add myThid to seaice_budget_ocean/ice
457      - add new interface for atmospheric wind forcing (C-grid only)
458        + new routine
459        + two new field (taux, tauy for stress over ice)
460        + removed one global field (DAIRN) for C-grid case only
461    o pkg/thsise
462      - 2nd set of modifs for thsice adjoint in conjunction with exf
463    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
464    
465    checkpoint58y_post
466    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
467      vertical diffusivity, similar to that in MOM4; turned on using
468      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
469      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
470    o Added capability for 3D specification of background vertical diffusion
471      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
472      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
473      "data" file that contains the 3D vertical diffusivity coefficients.
474    o ice dynamics (pkg/seaice) with thsice thermodynamics:
475      - add code within pkg thsice to advect & diffuse sea-ice fields
476      similar to (and will replace) what has been added in  seaice_advdiff.F,
477      but: - conserving Mass, Heat & Salt.
478           - better when using non-linear advection scheme (not yet fully tested)
479           - can also be used in atmospheric set-up (for now, only the diffusion).
480    
481    checkpoint58x_post
482    o IO option for global-file compact format:
483      - add options when generating topology (utils/exch2/matlab-topology-generator)
484      - add I/O capability (pkg/mdsio).
485      - adapt utils/matlab/rdmds.m to read this format.
486      for now long-line format not yet supported by pkg/mdsio (& exch2).
487    o shelfice: add a few diagnostics
488    
489    checkpoint58w_post
490    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
491      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
492      (and replace horiVertRatio in NH code).
493      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
494                         and tutorial_plume_on_slope (sensitive to truncation)
495    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
496      directly to drive seaice model (C-grid only)
497    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
498     - reintroduce computation of wind from stress,
499     - compute tau (in exf_bulkformulae.F) from windstress averaged to
500       mass points to avoid tau = 0
501     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
502    o rdmnc.m: make it work with "global" files created with gluemnc
503    o rdmnc.m : some improvements in dealing with singleton dimension
504      (tested on all testreport mnc output files).
505    o genmake2: disable pkg/profiles if netcdf test fails.
506    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
507    o move call to cal_readparms up to make calendar parameters/variable available
508      to all packages
509    
510    checkpoint58v_post
511    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
512      useDynP_inEos_Zc tested.
513    o pkg/exf: changes to properly interpolate/mask/scale initial fields
514    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
515      and portions thereof.  See read_cs.txt for description and examples.
516    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
517      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
518      following the great-circle arc between those 2 points.
519    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
520      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
521    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
522     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
523     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
524     - still needs work (not working with some options ; efficiency to improve)
525       and serious testing.
526     - use this scheme for temperature & salinity in 2 advection test exp.:
527       advect_xy & advect_xz, respectively.
528    
529    checkpoint58u_post
530    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
531    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
532    o testreport: add option "-skipdir" to skip some test.
533    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
534      momentum calculation.
535    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
536    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
537      remove checkpoint.F and the_correction_step.F (no longer used);
538      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
539    o add option (linFSConserveTr) to correct for tracer source/sink due to
540      Linear Free surface
541    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
542    o pkg/thsice: fix reading mnc-pickups
543    
544    checkpoint58t_post
545    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
546    o pkg/mdsio:
547     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
548       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
549       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
550     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
551     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
552       either MDS_READ_FIELD or MDS_WRITE_FIELD )
553     - new S/R (to replace MDSWRITEMETA), which allows to write more
554       informations (variable names, time ...) to meta files.
555     - modify rdmds.m to give back the meta file content.
556    o pkg/diagnostics: change vertical interpolation to be safer, and more
557       flexible (define p-levels to interpolate to in data.diagnostics);
558      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
559       diagnostic pointer.
560    o pkg/seaice: more cleaning up of seaice_growth, added many comments
561    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
562    o fix multi-category seaice:
563     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
564       SEAICE_MULTICATEGORY
565     - fix short wave heat flux
566    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
567       and allow to use EVP solver. Change forward lab_sea: test both EVP
568       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
569    o Initial check-in of lab_sea adjoint
570      (very similar to natl_box_adjoint/code_seaice)
571      * used C-grid and EVP solver
572      * used KPP, GM/Redi
573      * uses inAdExact=.TRUE.
574      * gradient checks fail for both ADM and TLM
575        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
576        f.d. gradients actually seem more problematic than ADM, TLM gradients;
577        issue is related to forward mismatch between g77 an ifort
578    o pkg/seaice: overhaul of thermodynamics
579     - growth.F and groatb.F are replaced by new routine seaice_growth.F
580     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
581     - move a few global fields out of SEAICE.h into seaice_growth.F and
582       make them 2D (FICE/QNETO/ ...)
583     - remove FO (it is the same as QNETO)
584     - introduce a few local fields to avoid modifying external fields such
585       as atemp, etc.
586    
587    checkpoint58s_post
588    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
589      changed exf_set_gen.F so that
590        genperiod=0 means input file is one time-constant field and
591        genperiod=-12 means input file contains 12 monthly means
592    o CG2D: use pre-computed solver main-diagonal (stored in common block);
593      this affects truncation error ; generate new output file for exp. which
594      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
595        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
596        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
597        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
598        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
599        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
600    o start implementation of deep-atmosphere and anelastic formulation
601    o verification: remove 2nd copy of input files and use script "prepare_run"
602      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
603    o mom_common/vecinv/fluxform: fix a few initialisation isssues
604    o profiles: fix for multithreaded case
605    
606    o diagnostics: rename few diags:
607      s/'PRESSURE'/'RCENTER '/g
608      s/'TICE    '/'oceFreez'/g
609      s/'TAUX    '/'oceTAUX '/g
610      s/'TAUY    '/'oceTAUY '/g
611      s/'SWFLUX  '/'oceQsw  '/g
612      s/DIFx/DFxE/g
613      s/DIFy/DFyE/g
614      and add few ocean-forcing diagnostics:
615      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
616    o modifications to pkg/seaice/growth.F and budget.F, which change results of
617      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
618      as actual snow thickness.  It now refers everywhere to effective snow
619      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
620    
621    checkpoint58r_post
622    o modifications to pkg/seaice/growth.F, which change results of
623      lab_sea experiment: fixes pertain to melting snow over open water, to
624      masking EVAP under sea ice, and to using the correct AREA variable for
625      computations of EVAP, PRECIP, HSNOW, and GHEFF
626    o add ability to read bathy, salt, and theta using MNC (off by def)
627    o add flooding algorithm and advection of HSNOW for pkg/seaice;
628      both are turned off by default and do no change any results
629    o seaice advection with pkg/thsice: a step toward the use of non-linear
630      advection scheme, but #ifdef or commented out for now (requires more EXCH).
631    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
632      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
633      in natl_box (affects results @ truncation level: update output.txt)
634    o multi-threading and IO:
635      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
636      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
637        (needed to work with SingleCpuIO): tested in all verif. exp.
638    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
639      affects the results (but none of the verification test uses this scheme).
640    o Adding some pkg/diagnostics capability to pkg/seaice
641      (will certainly be subject to changes)
642    o ctrl: adding new control variables:
643      lwflux, lwdown, evap, snowprecip, apressure, runoff
644    
645    checkpoint58q_post
646    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
647      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
648      high_res_cube configuration by 4% on Columbia.
649    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
650      add (in global_with_exf/code) a version of EXF_INTERP_READ without
651      dynamical allocation (seems to work in multi-threaded).
652    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
653      single CPU io) so that TAF does not have to see EESUPPORT.h
654    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
655    
656    checkpoint58p_post
657    o obcs: stop if obcs is used with useCDscheme = .true.
658    o shelfice:
659     - fix a sign error so that no slip at shelfice interface works
660     - remove stop for combination non-hydrostatic code and shelfice. That does
661       not mean, that the results are correct, but at least they are numerically
662       stable
663    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
664    o added adjoint exch routined for all exch*3d* routines
665      and updated flow directives
666    
667    checkpoint58o_post
668    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
669      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
670    o change controling S/R for writing pickup file (new S/R do_write_pickup)
671      and clean-up reading/writing of pickup files.
672    o fix local version of read/write pickup (NH part) in rotating_tank/code
673    o simplify EXCH interface:
674     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
675     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
676    o added the regrid package
677    o shelfice:
678     - add a simple boundary layer scheme to reduce noise
679     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
680    
681    checkpoint58n_post
682    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
683       local variable (not in common block).
684    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
685      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
686      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
687        to work with SingleCpuIO.
688    o add "_d 0" to real constant of pkg/cfc subroutines ;
689       update exp. cfc_exemple & tutorial_cfc_offline output files.
690    o multi-threading and IO:
691      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
692        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
693      - barrier before and after reading.
694      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
695      - avoid using MDS_WRITELOCAL for LAND pkg output.
696      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
697        common-block variables ; Allows multi-threading with master-thread IO.
698    o change default MAX_NO_THREADS from 32 to 4 ;
699      and stop cleanly when MAX_NO_THREADS is too small.
700    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
701    
702    checkpoint58m_post
703    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
704       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
705    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
706       keep global_ocean.90x40x15 (for AD testing) with former secondary test
707       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
708    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
709        add MITgcm_tutorials (= code + all the tutorials)
710    o ecco, option to compute cost for total ssh (mean+anom)
711    o consistent with addition of ptracer and ssh in pkg/profiles
712    o profiles: adding ptracer and ssh
713    o testreport: change multi-test output-file name
714      (from output.txt.{name} to output.{name}.txt)
715    o profiles: now ok for mutli-tiles case
716    o seaice: add 4 parameters for different advection schemes for area,
717      (effective) seaice thickness, enthalphy, and snow height. Their default
718      is the standard parameter SEAICEadvScheme
719    o calc_gw:
720     - add cosFacU in zonal viscous flux (harmonic.visc.).
721     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
722       of tutorial_plume_on_slope.
723    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
724    o calc_gw: true flux-form, account for horizontal grid spacing.
725      update rotating_tank results, but not plume_on_slope (affected at
726      truncation level, 11 digits).
727    
728    checkpoint58l_post
729    o calc_gw:
730     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
731     - remove side-drag for now (need to fix it); update plume_on_slope results.
732     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
733    o commit code to make SST/SSS weights spatially variable
734      (based on either variable in-situ or variable initial T/S weights)
735    o pkg/ecco:
736      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
737        now based on horizontally varying weights wthetaLev, wsaltLev
738      * cost_averagesflags now returns year indices in addition to day, month
739      * sflux balance is performed on annual basis
740        (sflxumm, sfluxmm2, bal_sfluxmm)
741      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
742        including separate counting and multipliers
743    o pkg/rbcs
744      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
745    
746    checkpoint58k_post
747    o testreport:
748     - always build in dir. "build" (if not there, mkdir build instead of building
749       & running in input)
750     - run in dir run (if it exists), in build otherwise.
751     - call prepare_run (if input/prepare_run exists)
752     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
753    o pkg/exf modifications to interpolation and rotation routines for more
754       reasonable treatment of North Pole singularity: for tracers North Pole
755       value is set to northernmost zonal-mean value, for zonal velocity it is
756       set to zero, and for meridional velocity it is set to northernmost value.
757    o pkg/exf/exf_check_range.F
758     - add tile index to diagnostics and move stop statement to the very
759       end of the routine.
760    o pkg/diagnostics: (diagnostics_main_init.F)
761      define title of isomorphic variables according to the current config.
762    o pkg/thsice with pkg/seaice dynamics:
763    - fix domain of computation (interior only, required for exf) and do exchanges
764    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
765    o towards a standard way of dealing with multi-threading in MONITOR
766      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
767    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
768       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
769    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
770    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
771    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
772       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
773    o tracer advection:
774     - clean-up and simplify calc_common_factors.F
775     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
776       advection subroutine (but still not used within DST advection S/R)
777    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
778    
779    checkpoint58j_post
780    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
781      from file (collects calls previously in FORWARD_STEP)
782    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
783    o adjoint store dir. adjusted accordingly
784    o genmake2
785      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
786    
787    checkpoint58i_post
788    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
789      on wind stress (SEAICEstressFactor defaults to 1.)
790    o Total number of Timers is finite (<=40): comment out 2 non-essential one
791      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
792    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
793      on CS-grid: no longer loosing mass.
794    o exf & curvilinear-grid: no longer modify longitude xC & xG.
795    o pkg/ggl90: fix sloppy output and fix a bug
796    o pkg/seaice: added SEAICEuseEVPpickup parameter
797      - Set to false in order to start EVP solver with
798        non-EVP pickup files when using SEAICEuseEVP
799      - fix sign error in diffusion in seaice_calc_rhs
800    
801    checkpoint58h_post
802    * Modifications for bottom topography control
803      o replace hFacC by _hFacC at various places
804      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
805      o add non-self-adjoint cg2d_nsa
806      o update autodiff support routines
807      o re-initialise hfac after ctrl_depth_ini
808      o works for 5x5 box, doesnt work for global_ocean.90x40x15
809    * Adding verification for 5x5 box (4-layer) bottom topography control
810    
811    checkpoint58g_post
812    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
813       used for mean seasonal cycle, mean diurnal cycle); add an example
814       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
815    o pkg/ggl90:
816      - add parameter (minimum surface kinetic energy)
817      - fix bug (avoiding division by zero)
818    o couple pkg/thsice to pkg/seaice:
819      - modify advection in seaice to accomodate new scalar fields to be advected
820      - only muliDimAdection scheme work with seaice/thsice
821      - mapping of thsice-variables to seaice-variables, back and forth
822      - does not break the verification experiments, but does not give the
823        desired results either
824    o pkg/seaice
825      - make (default) second order advection a bit less confusing?
826    
827    checkpoint58f_post
828    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
829      to pkg/seaice):
830      - new routines thsice_map_exf and thsice_get_exf provide the interface
831      - add an additional formal parameter to thsice_solve4temp
832    o pkg/exf:
833      - add new fields wspeed, snowprecip (to be able to couple to thsice)
834      - correct Stefan-Boltzmann constant
835      - new parameter for longwave surface emittance
836      - separate some stuff from exf_bulkformulae into new routines  
837        exf_radiation, exf_wind
838      - add new parameters and constants: longwave emissivity for ocean, ice
839        and snow, evaporation parameters over ice
840      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
841        either wind from stress or stress from wind
842    o pkg/thSIce:
843    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
844    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
845       and THSICE_CALC_THICKN
846    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
847    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
848      to make debugging easier.
849    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
850    o pkg/bulk_force:
851      - clean-up comments and parameters ;
852      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
853    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
854      generate new output for test-experiment: aim.5l_cs.thSI
855    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
856      testreport accordingly
857    
858    checkpoint58e_post
859    o SEAICE_CGRID adjoint done
860    o R_STAR adjoint implemented.
861      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
862      * need to sort out init. of h0facc, etc.
863    o Make pkg/profile fully independent of ecco,cost, etc. stuff
864      to be able to use it in pure forward.
865    
866    checkpoint58d_post
867    o upgrade simple test-experiment to tutorial example:
868     step.1: duplicate the experiment and (step.2) will remove the old copy.
869      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
870      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
871      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
872      tutorial_global_oce_biogeo    <- copy of dic_example
873      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
874      tutorial_plume_on_slope       <- copy of plume_on_slope
875      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
876      tutorial_global_oce_optim     <- empty for now (David ?)
877      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
878     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
879    o correct a sign problem in cost_scat.F
880    o obcs and ptracers: fix boundary conditions for advections schemes
881      with larger stencil
882    o thsice adjoint: start
883    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
884      completeness
885    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
886      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
887    o ptracers adjoint:
888      * avoid extensive recomputatations
889      * fix missing re-init. of gptr (missed by TAF)
890    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
891      me to turn off the excessive output to STDOUT that this package produces
892    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
893      and add those terms in Vector-Invariant formulation.
894    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
895      if the control period (xx_hfluxperiod etc) is 0
896    o in profiles pkg, clean routines and fix details
897    o in ecco pkg, reading ssh data:
898      fix problem in case the model does not start at iter0=0
899    o fix mnc-pickup/restart for ptracers
900    o new package prifiles:
901      code to compute profile-based cost by Gael Forget
902      (modifs in ecco, ctrl, autodiff)
903    o Benign bug fix in initialization (spotted by M. Mazloff) of
904      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
905    
906    checkpoint58c_post
907    o adjoint: finish NLFS adjoint and provide reference output in
908      verification/global_ocean.90x40x15/results_ad_nlfs
909    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
910      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
911      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
912      with SEAICE_CGRID defined.
913    o move calendarDumps from "data" to "data.cal" and clean-up the code
914      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
915    o add useEXF & useCAL flags (for now, set in hard-coded way)
916    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
917      (were missing in NH mode, and wrong in quasihydrostatic mode).
918      waiting for Chris updated version of calc_gw to add those CALLs.
919    o fix bug in quasihydrostatic S/R ;
920      add a test for this option: global_ocean.90x40x15.qshyd
921    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
922      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
923    o add on/off flag useOffLine for package OFFLINE
924    o seaice:
925      - modify advection so that it works also on the C-grid
926      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
927        problem in multi-tile runs with C-grid
928      - add flags for clipping ice velocities and/or masking solver forcing
929      - fix drag (ocean on ice) formulation and a bug that caused noise in the
930        C-grid solver
931      - added a few comments to seaice_diffusion.F
932      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
933        are now exclusive)
934      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
935        required re-ordering the code a little:
936       + make DAIRN global variable (defined in SEAICE)
937       + move computation of the viscosities eta and zeta into a new separate
938         routine (because I need to recompute them in seaice_ocean_stress.F)
939    
940    checkpoint58b_post
941    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
942      update output.txt of exp. aim.5l_cs.thSI
943    o various mnc cleanups and improvements:
944      + shrink lookup tables by factor of ~4
945      + better error reporting when running out of lookup space
946      + able to handle longer path/file names (up to 500 chars)
947    o adjoint:
948      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
949      - TBD: "hidden" mom_vecinv recomp. in dynamics
950    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
951     (allow to differentiate between forcing components using new integer flags:
952      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
953     and add new flag to put Dissipation tendency out of Adams-Bashforth.
954    o ecco
955      - enable trend removal from SSH anomaly obs.
956    o adjoint
957      - a fix for PmEpR when #undef EXACT_CONSERV
958      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
959      - try to fix "hidden" recomp. in forward_step for NLFS
960        (NLFS seems broken sometimes after I checked it in)
961    o seaice:
962     - add c-grid version of the dynamic solver:
963       + three new routines that are the c-grid substitute lsr, dynsolver
964         and ostres
965       + put a few fields that were local to dynsolver into global common
966         blocks, so that I can move the computation of stresses etc into
967         seaice_lsr (saves coding but may break the adjoint).
968     - replace more hardwired parameters by runtime parameters
969     - add ice masks that mask the rhs of the implicit solvers where there
970       is no ice (commented out in seaice_dynsolver, because i am not sure
971       if this works properly), eventually this should replace the clipping
972       of ice velocities in seaice_dynsolver to +/-40cm/s.
973    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
974      include it only where its needed
975    o move balancing of fluxes before the call of external_forcing_surf
976    o seaice:
977      - correct units of turning angles (now they are really in degrees)
978      - move computation of GWATX/Y out of main routine into dynsolver
979      - initialize GWATX/Y in seaice_init
980    o Apply mask on Fresh-Water flux (needed for SSH forcing).
981      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
982    o seaice: add runtime flags for turning angles (default to zero)
983    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
984      and trend from exf forcing and ctrl control adjustments
985    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
986      (since checkpoint57x_post)
987    o change the default rotation period to 86164.s = the Earth rotation
988    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
989      and based on a reference stratification. Tested within hs94.cs-32x32x5.
990    o seaice advection: add code for choosing between the default (2nd order
991      central differences) and multiDim advection schemes provided by
992      pkg/generic_advdiff
993    o seaice:
994      - removed all references to SEAICE_GRID.h fields from
995        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
996        (cubed-sphere configuration will change a little)
997      - grid computations in seaice_init are obsolete now.
998      - cleaned up code a little so that is easier to read (hopefully).
999      - added new (better?) discretizations of default advection and diffusion
1000        (turn on with SEAICEuseFluxForm)
1001      - replace 1 in 3d global fields by kSurface in growth.F
1002      
1003    checkpoint58a_post
1004    o seaice:
1005      - bug fix in advect.F
1006    o shelfice:
1007      - separate shelfice load anomaly from pload (breaks with time
1008        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1009        Its default is 0., but it may be computed more cleverly from (unknown)
1010        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1011        done offline. A good approximation of the pressure load anomaly is
1012        necessary to avoid large initial adjustment processes underneath
1013        deep-reaching shelfice.
1014      - small fix in ISOMIP shelfice_thermodynamics
1015      - add more sophisticated thermodynamics of Hellmer (1989), this is
1016        now the default
1017      - give a few constants more intuitive names
1018    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1019      if bulk formulae are used in long integration (especially EmPmR). Turn
1020      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1021      if balancePrintMean, the imbalance that is substracted is printed to
1022      STDOUT.
1023    o fix bug (typo) in obcs_apply_eta.F
1024    o add a new package shelfice which enables us to model the circulation
1025      underneath shelf-ice with draughts of hundreds of meters.
1026     - works
1027     - to do: + include improved thermodynamics
1028              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1029                instead of new field kTopC
1030              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1031                instead of new field R_shelfIce and new code in ini_depth.F
1032                and ini_mask_etc.F?
1033              + adjust vertical mixing schemes?
1034    o seaice pkg:
1035     - add a cpp-flag to include a simple formula for a salinity dependent
1036       freezing point of sea water at the surface
1037     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1038       meridional stresses are now different (and hopefully correct)
1039    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1040       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1041       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1042    o pkg/diagnostics: add options and parameters for regional-statistics
1043       diagnostics ; define regions by reading a region-mask from a file
1044       (might add other options later)
1045    o pkg/bulk_force:
1046     - add option and parameters to use AIM surface-flux formulae.
1047     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1048       others forcing fields (defined in PARM05, parameter file "data") are loaded
1049       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1050     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1051     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1052     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1053       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1054     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1055    
1056    checkpoint58
1057    o add "--embed-source" option to genmake2 which, when the supporting
1058      tools can be compiled (as determined by genmake2) will turn on the
1059      embed_files package which then embeds the entire MITgcm source code
1060      (*.[fFhc] + Makefile) used for the build within the executable
1061      - requested by CNH but off by default
1062      - adds a paltry <9MB to the mitgcmuv executable in most cases
1063      - only writes the output when useEMBEDSRC in eedata is true
1064    o clean up 3-dim. relaxation codes:
1065      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1066      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1067      * Thanks to Tom Haine for testing!
1068    
1069    checkpoint57z_post
1070    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1071      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1072    o fix the pickup behavior for obcs in combination with ptracers
1073    o fix a bug in ptracers_external_fields_load
1074    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1075      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1076    o transfered surface NH pressure to eta field (if exactConserv).
1077    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1078         and update lab_sea output.txt file.
1079    o completing 3-dim. relaxation code: additional term
1080         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1081      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1082      * At compile time, in "EXF_OPTIONS.h" set
1083          #define  ALLOW_CLIMTEMP_RELAXATION
1084          #define  ALLOW_CLIMSALT_RELAXATION
1085      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1086          tauThetaClimRelax3Dim = 15552000.0,
1087          tauSaltClimRelax3Dim  = 15552000.0,
1088      * 3 cases:
1089          1) Use a constant-in-time 3-dim. field
1090          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1091          3) Real-time relax. to time-evolving prescribed field
1092    o Adding Laplacian-type smoothness constraint on
1093      initial and boundary (forcing) controls (ic, bc)
1094      * enable at compile-time via
1095        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1096      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1097      * Absolute scale somewhat unclear so far
1098      * no area weighting was included since no other cost term does so far
1099    
1100    checkpoint57y_post
1101    First step for a NLFS adjoint
1102    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1103    o new init. routines for calc_r_star, calc_surf_dr
1104    o still need to deal with ini_masks_etc
1105    o testreport seemed happy
1106    checkpoint57y_pre
1107    
1108    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1109    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1110    o add new offset feature to offline pkg (plus minor cleanup)
1111    o cfc fixes for final year of integration
1112    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1113      be in GCHEM_OPTIONS).
1114    
1115    checkpoint57x_post
1116    o fix testreport Pb in multiple test experiment.
1117    o cleanup our namelist syntax in verification:
1118      - make it more F95 standards compliant (some work still needed)
1119      - allows the vast majority of our tests to work with gfortran
1120    o Non-Hydrostatic:
1121     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1122     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1123    o Allow to apply AB on T,S rather than on AB(gT,gS):
1124     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1125     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1126       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1127     - need a "clever" read_pickup to restart from the other AB formulation
1128    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1129    o remove some unused variables (reduces number of compiler warnings)
1130    o adjoint
1131      * Disable useVariableViscosity for adjoint for time being
1132        (there are a number of extensive recomputations)
1133      * Initialize certain variables needed for adjoint
1134    
1135    checkpoint57w_post
1136    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1137                 fix the singleCpuIO RS version of MDSWRITEFIELD
1138       and add a WARNING if using globalFiles=T with multi-processors.
1139    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1140      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1141    o tracer advection scheme:
1142      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1143       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1144       was not very convenient).
1145      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1146       (further tests needed for the implicit DST & Flux-Limiter schemes).
1147    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1148      and sRef for convenience, handy, when you want to initialize
1149      ptracers in a large domain with a constant non-zero value. Also,
1150      untangle ptracers_init.F a little.
1151    
1152    checkpoint57v_post
1153    o change dome exp. to use variable viscosity in side-drag terms.
1154    o remove all the files from the cfc_offline test since they are now
1155      incorporated into tutorial_cfc_offline which has been producing
1156      identical results for a few days of testing
1157    o add new parameter: sideDragFactor to enable half-slip-side BC
1158      and change side-drag S/R to use viscosity from mom_calc_visc
1159      (can switch back by setting sideDragFactor=0.); affects results at
1160      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1161       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1162    o vorticity & strain are now computed without masking, to account for
1163      no-slip-side BC in variable viscosity calculation ; mask is applied
1164      anyway later on, before computing advection/coriolis terms.
1165    o modify exp4 to test new obcs support for reading from external files
1166      and for passive tracers
1167    o fix behavior of ptracers_monitor when monitor output is written to a
1168      netcdf-file; still not independent of monitor.F (writes in the same
1169      file).
1170    o change default value of tRef (put a uniform, meaningful value for ocean
1171      & atmos) and initialize sRef (was missing, as Martin mentioned).
1172    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1173      to be proportional to enstrophy dissipation length.  Thus,
1174       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1175      This is now consistent with Smagorinsky and with the manual.
1176    
1177    checkpoint57u_post
1178    o OBCS and PTRACERS: add open boundary support for passive tracers
1179      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1180        OB-values from file; this is not different from the way theta and salinity
1181        are treated
1182      - however, Orlanski-radiation conditions are not supported, and the model
1183        will stop if you use pTracers and Orlanski at the same time.
1184      - beefed up the rountine obcs_external_fields_load: now only those open
1185        boundary values are overwritten with values from files for which there
1186        are really files, otherwise the OB-fields remain untouched. This makes
1187        it possible to use different OBs at different ends of the domain (as
1188        with EXF)
1189    o reduce number of exch calls in shap_filt (s2).
1190    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1191      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1192    
1193    checkpoint57t_post
1194    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1195    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1196      same truncation, independent of the face number: affects affects several
1197      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1198    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1199      note that biharmonic viscosity + no-slip was not tested in any experiment.
1200    o fix bug in non-linear free-surf side-drag ; generate new output for
1201      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1202    o make mnc honor the writeBinaryPrec flag for most kinds of output
1203    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1204    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1205      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1206    o add brackets in multi-terms sum to get same truncation, independent of
1207      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1208      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1209    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1210      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1211      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1212      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1213      Suggested values of viscosity parameters found in mom_calc_visc.
1214      Many new viscosity diagnostics available.
1215    
1216    checkpoint57s_post
1217    o Add clearing-house for viscosity calculations, mom_calc_visc and
1218      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1219      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1220      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1221      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1222      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1223      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1224      ViscAhStrain and viscAhTension are now retired.
1225    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1226    o In response to JMC's bug report, genmake2 now ignores any soft-links
1227      that it finds in the *current* directory when searching for files.
1228      Soft-links found in any other source directories will still work as
1229      they did before.
1230    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1231      a C routine to unlimit the stack size
1232    o mnc-ify pkg/aim snapshot vars
1233    o mnc-ify pkg/land as requested by Daniel
1234    o various changes to mnc including:
1235      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1236      - output can now be grouped so that all files within a group
1237          change the ITER portion of their names in lock-step together
1238      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1239          and works with both EXCH1 and EXCH2 (but needs more testing)
1240      - writing works for all verification test cases w/ g77 on Linux
1241    
1242    checkpoint57r_post
1243    o make MNC variable initialization happen earlier
1244    o add diagnostics for (almost) each term of the momentum Eq.
1245    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1246    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1247    o remove MINIMAL_TAVE_OUTPUT option ;
1248      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1249    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1250      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1251    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1252    o add time-dependent SST, SSS control
1253    o cost terms in ecco/ modularized (new cost_generic.F)
1254    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1255    o new infrastructure for seaice model vs. obs misfits in seaice/
1256      * driver from the_main_loop.F is seaice_cost_driver.F
1257      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1258      * gradient check in Exp. 6a of natl_box_adjoint/
1259    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1260      (see README file)
1261    
1262    checkpoint57q_post
1263    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1264    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1265      - bug was reported by Jean-Michel and Ian Fenty
1266    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1267      update exp. cpl_aim+ocn output.
1268    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1269      Needed for high-res. runs with large global files
1270      to be able to limit tapelev size
1271    o Changed some tests for adjoint:
1272      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1273      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1274      * global_ocean.90x40x15/ back to default 3-level checkpointing
1275    o Modifications to enable scripted COMMON to MODULE conversion
1276      * verification/OpenAD/code/ has necessary scripts and description;
1277      * converts, compiles and runs successfully;
1278    
1279    checkpoint57p_post
1280    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1281    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1282      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1283    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1284    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1285      (was already the case for dissipation with mom_vecinv,
1286       and also the case for grad.PhiHyd when staggered-timeStep)
1287      This will allow to put dissipation out-off the AB time-stepping.
1288     Unfortunately, affects truncation error. Update output of exp. that "fails"
1289      (cg2d matching number) and leave the others for later: front_relax(10),
1290      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1291      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1292    
1293    checkpoint57o_post
1294    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1295      (2) its ready to be documented during the 20050801 DocFest
1296    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1297      for ideal_2D_oce and lab_sea on linux_ia32_g77
1298    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1299      in global1x1_tot/code_seaice_adj to access indices 32, 33
1300      (worth another tag)
1301    
1302    checkpoint57n_post
1303    o adding precip control xx_precip 32
1304    o adding swflux control xx_swflux 33
1305    o Replacing 10 forcing penalty cost routines by 1 generic.
1306    o Implementing partitioning in time-mean and variable adjustment
1307      for atmos. state.
1308    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1309  o in natl_box_adjoint:  o in natl_box_adjoint:
1310    * updated: results_bulk/    * updated exp 1 to 10
1311    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
1312    o updated global1x1/*_seaice_adj/
1313      to incorporate latest changes
1314    o enable useSingleCpuIO for mdsio vector routines
1315      (applies in particular to tapelev I/O)
1316    o removed inefficient K-loop in all active_file*control*.F
1317    
1318  checkpoint57m_post  checkpoint57m_post
1319  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)

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