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revision 1.95 by adcroft, Tue Nov 5 19:14:26 2002 UTC revision 1.912 by dimitri, Wed Nov 28 00:18:16 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o added pkg/salt_plume
8    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:
1310      * updated exp 1 to 10
1311        (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
1319    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1320      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1321    o pkg/exch2: filling of face-corner halo regions is optional
1322      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1323    
1324    checkpoint57l_post
1325     tag before updating tutorials (pre-release-2)
1326    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1327       for output and interpolation of input fields onto model grid)
1328    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1329       Affects results of exp. rotating_tank ; update output.txt.
1330    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1331          and taking the square quantity and/or using a fraction-weight field.
1332    o fix aim_diagnostics_init.F mate numbers.
1333    o add mnc output capability to diagnostics/diagstat and update
1334      our cvsignore files for the ACSII output generated
1335    
1336    checkpoint57k_post
1337    o lab_sea now uses diagnostics package and provides a suite of
1338      new EXF diagnostics output.
1339    
1340    checkpoint57j_post
1341    o exf
1342      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1343        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1344        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1345      * extended diagnostics output
1346        - now includes all EXF variables
1347        - hs, hl moved to common block
1348        - separate S/R for diagnostics, called after ctrl vector is added
1349        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1350        - EXFqnet contains true Qnet (i.e. includes qsw)
1351      * updated verif. lab_sea, global_with_exf
1352      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1353        to ensure that diagnostics sees a true EXFqnet
1354    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1355    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1356      several times with different frequencies.
1357    o mnc-ify the thsice package as requested by Daniel Enderton
1358      - the monitor--MNC output needs work
1359      - many attributes need to be added (most are currently blank)
1360    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1361      - many attributes need to be added (most are currently blank)
1362    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1363    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1364    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1365      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1366         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1367    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1368     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1369    
1370    checkpoint57i_post
1371    o Diagnostics package was changed: diagnostic allocation is now deactivated
1372      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1373    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1374      add 1rst Order upwind vertical Shear.
1375    o add a quick fix for A/B checkpointing in OFFLINE mode
1376    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1377      end-run around the C/Fortran linking horror in eesup/src/timers.F
1378    o added pkg/runclock: allows user to terminate run based on wall clock
1379    o added non-hydrostatic scaling parameter: nh_am2
1380    o pkg/my82: futile attempt to make results compiler-independent by adding
1381      some "_d 0", etc. no effect.
1382    o for mnc output, fill the 'T' coordinate var with myTime and create a
1383      separate 'iter' variable for iteration count
1384    o pkg/diagnostics:
1385      add new capability: output of Global/Regional & per-level statistics ;
1386      tested against monitor output (including land & thSIce) on various exp.
1387    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1388    
1389    checkpoint57h_done
1390      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1391      data.diagnostics, data.gchem, data.ptracers) is done.
1392    
1393    o pkg/diagnostics: prepare for Global/Regional statistics.
1394      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1395    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1396      and rename it: DIFFERENT_MULTIPLE
1397    
1398    checkpoint57h_post
1399    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1400    o pkg/diagnostics: change output frequency, now in seconds (instead
1401      of Nb of iterations). This requires to change data.diagnostics.
1402    checkpoint57h_pre
1403    
1404    o in mnc, let the user create the output dir if both mnc_outdir_date
1405      and mnc_outdir_num are false
1406    o add fflags() to pkg/diagnostics which allows one to specify, on a
1407      per-file basis, the file precision [default behavior is unchanged]
1408    o added diagnostics to pkg/kpp, including computation of mixed layer
1409      depth based on a temperature/density criterion
1410    o updated verification/natl_box to test the new pkg/kpp diagnostics
1411    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1412    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1413    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1414      not mnc -- this mistake was found by JMC and is now corrected
1415    
1416    checkpoint57g_post
1417    o add Adams-Bashforth 3rd Order time stepping:
1418      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1419      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1420    checkpoint57g_pre
1421    
1422    o make lambda[Theta,Salt]ClimRelax spatially varying
1423      (default remains spatially uniform constant based on tau)
1424    o added new control variables
1425      * init. uVel, vVel, etanN
1426      * lambda[Theta,Salt]ClimRelax
1427    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1428      (suggested by G. Forget)
1429    
1430    checkpoint57f_post
1431    o add parameter "baseTime" = model base time = time at iteration zero
1432      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1433      account for baseTime shift
1434    o move Coriolis arrays from PARAMS.h to GRID.h
1435    checkpoint57f_pre
1436    
1437    o mnc-ifying the seaice package
1438    o introduced an alternative length scale calculation for use in the limiting
1439      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1440    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1441    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1442      as well as grad(vort3).  Made it compatible with both approximate form
1443      for the cubed sphere and full form of these gradients.  Added flag
1444      useFullLeith to select between approximate and full form.  
1445    o add "d0" in getcon.F to reduce differences between compilers/platforms
1446      update output.txt of exp. fizhi-gridalt-hs
1447    o change port_rand funtion to allow to set the seed.
1448    o fix obscure MNC bug involving conversion between reals and integers
1449      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1450        new version is now more standards-compliant
1451    o adjoint-related modifications
1452      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1453      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1454      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1455    
1456    checkpoint57e_post
1457    o Adding eddy stress controls a la Ferreira et al.
1458    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1459    
1460    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1461      update output.txt of exp. fizhi-gridalt-hs
1462    o add more "Z" dimensions and associated coordinate vars to MNC
1463    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1464    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1465      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1466      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1467      months and years.  Requires pkg/cal.
1468    o diagnostics: add pickup functionality
1469      - off by default for backwards compatibility
1470      - current version only uses MDSIO -- MNC will be added
1471    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1472    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1473    
1474    checkpoint57d_post
1475    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1476    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1477      output from the diagnostics package
1478    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1479    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1480      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1481    o add coordinate variables to the MNC output from the diagnostics package
1482    o change MNC-flags default value: true when useMNC=TRUE
1483    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1484      the ability (off by default) to read the grid information using MNC
1485    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1486    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1487    o do snap-shot diagnostics at the middle of the time-interval (instead of
1488      at the end).
1489    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1490      new test for AIM with thSIce + slab-ocean
1491    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1492    o move state variable diagnostics to the beginning of the time step ;
1493      (note: still needs some work specially for snap-shot diagnostics)
1494      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1495    
1496    checkpoint57c_post
1497    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1498    o generate new output.txt files on faulks with g77 & the new -ieee option
1499    checkpoint57c_pre
1500    
1501    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1502      update output.txt of exp. global_ocean.90x40x15
1503    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1504      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1505    o add saltFlux(+File) forcing capability with periodicExternalForcing
1506    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1507    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1508    o improvements for the MNC output from DIAGNOSTICS:
1509      - correct handling of the unlimitied dimension
1510      - all dims now have associated coordinate variables
1511      - variables located at U, V, and Corner ("Z") points are now written
1512        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1513        *all* data points are output
1514    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1515    o added pkg/seaice/seaice_monitor.F
1516    o mdsio_readfield.F can now read files visible only to master MPI process.
1517    o pkg/seaice: some test code for ice-modified ocean stress
1518    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1519      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1520      spurious negative numbers for precipitation and humidity.  Will cause
1521      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1522    o pkg/ctrl/
1523      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1524        May be enabled via doPackDiag
1525      *  introduce z-scaling of
1526         + gradient (doZscalePack) and
1527         + control (doZscaleUnpack)
1528    o pkg/mdsio/
1529      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1530      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1531    
1532    checkpoint57b_post
1533    o simplify options in diagnostics_fill arguments (remove weird combinations)
1534    o fix MNC coordinate variables so that they now contain per-face index
1535      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1536      general, EXCH2 grids are only aligned to a "local" coordinate system
1537    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1538    o Implement instantaneous output within pkg diagnostics:
1539      setting a negative frequency in data.diagnostics produces
1540     "snap-shot" output (as opposed to time-average if freq > 0)
1541    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1542      NOTE: change ptracer diagnostics name: use 2 characters to work with
1543            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1544    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1545      becomes the coordinate variable for the 'T' dimension
1546    o add CF-style coordinate variables to MNC
1547      - just a first cut:  numbers are meaningless on the cubesphere and
1548        missing along the T axis but otherwise it works!
1549    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1550    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1551    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1552      this is based directly on what the model compute, so that the content of
1553      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1554    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1555    o clean up build options files for SunOS, in particular
1556      - remove -traditional from xmakedepend
1557      - change -xarch=v9 to -xarch=native for f77
1558      - restore use of make (not gmake)
1559      - add CC=gcc if using g77
1560    o changes per discussion of AM, JMC, & EH3 today:
1561      - move redundant "grid" variables out of "state" -- in preparation of
1562        creating proper CF-style coordinate variables and in recognition
1563        that any/all grid variables can be easily copied (eg. w/NCO) from
1564        the grid files into any of the other NetCDF files
1565      - *always* output grid variables with MDSIO (this will eventually be
1566        changed)
1567      - output MNC grid file if useMNC is true
1568    o every instance of _END_MASTER() has been found and replaced with
1569      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1570      preprocessors
1571    o re-arrange diagnostics pkg initialisation:
1572     - allow each package to extend the available diagnostics list
1573     - add some checking and fix small problems (multi-threaded, ...)
1574     - new S/R diagnostics_fill (replace fill_diagnostics):
1575       look through the short list of active diag. (instead of the long list)
1576       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1577    
1578    checkpoint57a_post
1579    o this set of changes restores TAMC compatibility
1580      tested for global_ocean.90x40x15 adjoint on trough
1581      (what a pain)
1582    
1583    checkpoint57a_pre
1584    o some modifs in tools/build_options for sunos
1585    o call ctrl_pack for ctrl at end for optimcycle=0
1586    
1587    checkpoint57
1588    o add horizontal bi-harmonic viscosity for vertical velocity
1589      - new parameter viscA4W (defaults to viscA4)
1590      - affects only non-hydrostatic code
1591      - to be done: no-slip lateral boundary conditions
1592    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1593    o implement Implicit Vertical advection for pTracers
1594    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1595      (implemented also for implicit vertical diffusion & advection)
1596    o OBCS: extend application of tracer open boundary conditions
1597      to a strip beyond the boundary of width Olx/Oly
1598    o add call monitor to TAF set of required calls (flow directives)
1599      and include in natl_box_adjoint
1600    o untangle a few ifdefs related to cost, ctrl, autodiff
1601      untangel a few ALLOW_ECCO_OPTIMIZATION
1602    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1603      (theta2, salt2 in ecco_cost_weights)
1604    
1605    checkpoint56c_post
1606    o OBCS as control variables
1607      - update ctrl_ad_diff.list, obcs_ad_diff.list
1608      - remove balance of obcs controls from default
1609      - fix index bug nobcs in ctrl_init
1610      - fix dummy fields filen in ctrl_pack
1611      - add dummy weights for obcs
1612    o lsopt: comment out fort.94 output
1613    o optim:
1614      - remove unnecessary header files
1615      - adjusted namelists
1616      - add xerbla.F to Makefile
1617    o exf:
1618      - multiple modifications of exf_check_range
1619      - unit change in exf_init_runoff from [m/year] to [m/s]
1620    o mdsio:
1621      - i/o-vector change debugLevel from debLevA to debLevB
1622    
1623    checkpoint56b_post
1624    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1625      is called from DO_THE_MODEL_IO
1626      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1627      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1628      - clean up PTRACERS_WRITE_TIMEAVE a little
1629    o add another verification experiment that tests both the cfc-pkg and
1630      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1631      reactive tendencies treated inline with regular timestepping
1632    o testreport previously did a lousy job of comparing small numbers, so
1633      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1634      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1635      testreport.
1636    o ptracers_monitor: bug fix for MPI
1637    
1638    checkpoint56a_post
1639    o GCHEM: finish reorganizating the package
1640      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1641        (introduces another 3D-array for each passive tracer, but only if
1642        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1643        gchemTendency is not needed because the timestep is done separately)
1644      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1645      - GCHEM is now---more or less cleanly---separate from PTRACERS
1646      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1647        so clear to me how that should be done in a general way.
1648    o CFC: improve formatting of output in CFC_ATMOS
1649    o PTRACERS:
1650      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1651        that ALL experiments with ptracers enable can be checked. This makes
1652        GCHEM_MONITOR obsolete.
1653      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1654        monitorFreq
1655      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1656    o add PTRACERS (PTR0[1-5]) to testreport output
1657    o exf_check_range:
1658      * default changed to .TRUE.
1659      * will check values for niter0 if debLevA, every timestep if debLevB
1660      * STOP in exf_check_range if 'out of range'
1661      * range chosen generous to allow for potential extema
1662      TBD: a version with stricter range
1663           permitted range would be runtime parameters
1664    o GMredi:
1665      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1666      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1667      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1668    o GCHEM:
1669      - move call to GCHEM_FORCING_SEP, so that it is now called before
1670        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1671      - introduced a useGCHEM runtime flag and applied it everywhere.
1672      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1673        this flag is now only visible within GCHEM-pkg routines.
1674      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1675        be replaced by a 3D array that is computed before thermodynamics; for
1676        this, the tracer ID iTracer had to be included into the parameter list
1677        of ptracers_forcing
1678      - set up forward_step to call gchem_forcing, that will replace
1679        gchem_forcing_int in ptracers_forcing
1680      - cleaning up
1681    o small cleaning of exch2: remove files that are also in eesupp/src
1682    
1683    checkpoint56
1684    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1685    o mnc: cleanup "full" files--fixes out-of-memory problem
1686    o ECCO-GODAE
1687      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1688      * fully merged and updated from SIO code
1689        windstress sign change affects
1690        - exf_inscal_[u/v]stress
1691        - sign of xx_tau[u/v] adjustments
1692        - signs in cost_scat
1693      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1694      * natl_box_adjoint updated and compressed
1695      * 2-level checkpoint switch added
1696        (tested in EXP. 1 of natl_box_adjoint)
1697      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1698    o SVD
1699      * first complete, non-hacked version for SVD calculations
1700      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1701        performed via direct access files admtlm_vector.it????
1702        (via ctrl_[un]pack)
1703      * optimcycle is used for ARPACK iteration counter
1704        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1705      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1706        and add linear transforms where necessary
1707      * controls are initial/final SST, SSS (can be extended; need to check
1708        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1709    o mdsio: filename info to both stderr, stdout
1710    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1711      from sign change
1712    
1713    checkpoint55j_post
1714    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1715      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1716    o add consistent build directories and .cvsignore files to verification
1717    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1718    o make all subroutines 30 or less characters in length for certain older
1719      compilers to work (a thorough search only turns up two routines in
1720      pkg/ptracers)
1721    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1722      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1723    
1724    checkpoint55i_post
1725    o change arrays for total vertical diffusivity (2.D if explicit,
1726      3.D if implicit) ; each ptracer uses its own background value.
1727    o added mnc/NetCDF output capability to ocn_compon_interf
1728      - added bits to verification/cpl_aim+ocn so that it can run on
1729        ITRDA and other clusters without the mpirun "-wd" option
1730    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1731      configuration
1732    o give MNC the ability to create additional files rather than
1733      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1734      - the default is just less than 2GB which is a practical limit
1735        on many systems
1736    o Compute the non-local term using either KPP vertical diffusivity (=default)
1737       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1738    
1739    checkpoint55h_post
1740    o add verification test "vermix"
1741    o remove all the *_ioinc flags and replace with the single global
1742      outputTypesInclusive flag
1743    o allow to set a vertical profile of vertical diffusivity for T & S
1744    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1745    o useMNC moved from data.mnc to data.pkg
1746    
1747    checkpoint55g_post
1748    o Renaming carbon AD experiments to comply with testreport conventions
1749    o Updating adjoint of Held-Suarez hs94.1x64x5
1750    o Fixing directives for non-ECCO forward_step, after ECCO directives
1751      have been fixed to avoid recomp. of do_oceanic_phys
1752      Works well for global_ocean.90x40x15,
1753      but recomp. issue remains for carbon
1754    o Updating adjoint output for natl_box_adjoint after
1755      pkg/ecco has been modified (see taga c55d_post)
1756    
1757    checkpoint55f_post
1758    o rename to timeave_init_fixed
1759    
1760    checkpoint55e_post
1761    o some delicate re-shuffle of store directives to avoid one
1762      extra call of do_oceanic_physics
1763      affects ecco_the_main_loop.F, do_oceanic_physics.F
1764      checkpoint_lev1_directives.h
1765    o NB: this may break global_ocean adjoint temporarily,
1766      but it is clear how to fix it. Will do later, need this now.
1767    
1768    checkpoint55d_post
1769    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1770    o ecco_cost_weights is modified to 1x1 runs
1771    o modifs to allow observations to be read in as
1772      single file or yearly files
1773    o enable to read exf forcing fields as either
1774      single file or yearly files (flag useExfYearlyFields)
1775    checkpoint55d_pre
1776    
1777    o switch between 2-level and 3-level checkpointing
1778    o add ability of MNC to write local and "partial" (eg. 2D slices where
1779      the full 3D field is never actually stored) arrays to NetCDF files
1780      with the correct (that is, the complete multi-dimensional) set of
1781      array indicies
1782      - used in mom_vecinv() to write the diagFreq output
1783      - tested (demonstrated) in verification/aim.5l_cs
1784    o further mnc-ification
1785      - add verification/lab_sea to the list with mnc setups
1786      - fix undefined mnc v-names in cd_code
1787      - add kpp to mnc output (both snapshot and timeave)
1788    o non-hydrostatic code
1789      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1790        in calc_gw.F
1791      - defaults to viscAh
1792      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1793        friction or Leith) in non-hydrostatic mode, as long as there is
1794        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1795    o pkg/cost
1796      extend simple cost functions to treat time mean quantities
1797      (T,U,V) via cost_accumulate_state from cost_tile
1798    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1799        be 2 times larger than the minimum size the advection scheme requires.
1800        now get a perfect conservation of salt in advect_cs test-exp (updated)
1801    o GGL90 (Gaspar's TKE mixed layer)
1802      - add horizontal diffusion of TKE, requires exchanges in
1803        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1804        default. In OPA there is no horizontal diffusion of TKE but the
1805        mixing coefficients are computed from a horizontal average of TKE of
1806        6 points or so. I think that diffusion has a little more physical
1807        justification.
1808      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1809        was in vain)
1810      - mask tke-variable in ggl90_init
1811    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1812    o fix biharmonic diffusion on CS-grid.
1813    o more obcs stuff
1814      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1815        for reading boundary values. This routine is called from
1816        obcs_prescribe_read
1817      - updated obcs_check
1818      - changed sponge layer relaxation parameter units for days to seconds
1819      - turned off sponge layer by default
1820      - changed argument list of OBCS_CALC to myTime+deltaTclock
1821      - fixed about 35 bugs in obcs_external_fields_load
1822    
1823    checkpoint55c_post
1824    o obcs stuff
1825      - new runtime flags useOBCSprescribe, useOBCSbalance
1826      - re-arranged obcs_calc
1827      - moved exf_getobcs to obcs_prescibe_read
1828        obcs_prescibe_read is called after ORLANSKI stuff
1829        and independent of it (executable can contain all).
1830      - updated obcs_check
1831      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1832        These may be necessary only if tangential velocities are
1833        prescribed at OB, not sure, needs testing.
1834    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1835      which simplifies the calls and passes the ifc check-bounds test
1836    
1837    checkpoint55b_post
1838    o add a 2D scalar, Z location, exchange_2 routine.
1839    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1840      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1841      affects advect_cs results (for the wrong reason): update output.txt
1842    o use a more standard discretization for biharmonic viscosity ;
1843     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1844      affects results of dome set-up: update output.txt
1845    o fix gad_advection.F (CubedSphere part), back to version 1.23
1846    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1847    
1848    checkpoint55a_post
1849    o merged code to
1850      * prescribe/read time-dependent open boundaries
1851        (works in conjunction with exf, cal)
1852      * sponge layer code for open boundaries
1853      * each boundary N/S/E/W now has its own CPP option
1854        (healthy for the adjoint)
1855    
1856    checkpoint55
1857    o up-to-date adjoint of previous breaks
1858      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1859      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1860      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1861      - carbon: * remove tr1-related adjoint verification
1862                * add ptracer as control variable
1863    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1864      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1865    
1866    checkpoint54f_post
1867    o in verification/carbin/ remove experiment related to
1868      ALLOW_PASSIVE_TRACER (array tr1 etc)
1869      code_ad/ input_ad/ results_ad
1870    
1871    o add two new packages
1872      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1873        + subject to optimization (memory)
1874      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1875        + subject to reordering (many GOTOs in the original code)
1876        + so far opps is called for every (i,j) point, and then operates in
1877          the vertical; one may want to reorder the scheme in order operate in
1878          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1879          fields)
1880    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1881      - all verification tests compile and run with linux_ia32_g77
1882      - defaults are compatible with current input files--nothing
1883        should change if you were not previously using MNC
1884      - MNC output has been added in numerous places (eg. timeave)
1885        but there are still a few writes not yet do-able with MNC
1886        (this is in progress)
1887      - flags now allow for either/or/both use of MDSIO and MNC and
1888        documentation will soon follow
1889      - numerous small formatting cleanups for ProTeX
1890    o add version info (via BUILD_INFO.h) to MNC and stdout
1891    
1892    checkpoint54e_post
1893    o add two new packages
1894      - pp81 (Packanowski and Philander, 1981), Richardson number and
1895        stratification dependent mixing
1896      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1897      - these scheme operate in a similar manner as KPP (without ghat, of
1898        course), however there is only one diffusivity that is used for both
1899        temperature and salinity (and passive tracers)ç
1900    o add offline package
1901    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1902      provided by Stephanie Dutkiewicz
1903    o genmake2: add ability to search for C compilers and cleanup test output
1904      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1905    
1906    checkpoint54d_post
1907    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1908    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1909      leading to additional shift by 5 days each year of integration
1910       (i.e. leading to considerable offset over the years)
1911    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1912    o start with no AB and no initial filtering (staggerTimeStep):
1913      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1914    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1915      (external loading & cpl import/export stay in forward_step.F)
1916    o update coupling interface to work with new staggerTimeStep
1917    o change MDSIO ptracers_pickup.
1918    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1919    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1920    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1921    
1922    checkpoint54c_post
1923    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1924      this affects (truncation error) output.txt of test-exp:
1925       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1926    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1927    o change Qnet to always be the net heat flux, (+upward).
1928      affects (truncation error) output of natl_box exp.: updated
1929    o define the max number of passive tracers in PTRACERS_SIZE.h
1930    o start to test mnc routinely in exp0
1931    o add sea-ice loading (sIceLoad) as a new forcing field.
1932    
1933    checkpoint54b_post
1934    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1935       impressive on Altix and Opteron systems)
1936    o diagnostics can now write NetCDF files through the mnc package
1937    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1938    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1939    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1940      affects (truncation error) output of lab_sea & natl_box exp.: updated
1941    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1942    
1943    checkpoint54a_post
1944    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1945    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1946    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1947    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1948      + internal_wave (shift in writing cg2d_ini_res)
1949    checkpoint54a_pre
1950    
1951    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1952      - modified verification/lab_sea and natl_box_adjoint accordingly
1953    
1954    checkpoint54
1955    checkpoint53g_post
1956    o prepare splitting of thermodynamics: store convect.counter in common block
1957    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1958      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1959    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1960    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1961    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1962    o restore adjointability
1963    
1964    checkpoint53f_post
1965    o modifications that affect AIM experiment results (update output.txt):
1966      - no advection of S at top interface Nr (pkg/generic_advdiff)
1967      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1968    o AIM pkg:
1969      - include stability function into surf.Flux derivative relative to Tsurf
1970      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1971    
1972    checkpoint53e_post
1973    o merged cylindrical coord configuration
1974    o added rotating_tank experiment
1975    checkpoint53e_pre
1976    
1977    checkpoint53d_post
1978    o faulks upgraded: re-generate output.txt that have changed:
1979       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1980    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1981    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1982    o added Sadourny discretization of Coriolis
1983      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1984      - re-enabled use of omega3 (useAbsVorticity)
1985    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1986      vector-invariant equations
1987      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1988    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1989      hopefully without new bugs
1990      - still to do: biharmonic friction for non-hydrostatic w
1991    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1992    o regenerated output for global_ocean_ebm (using -ieee)
1993    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1994      of mom_common/
1995      - simple re-arrangement of instructions within computing loop
1996    checkpoint53d_pre
1997    
1998    checkpoint53c_post
1999    o new version of coupler for AIM+thSIce and Ocean models
2000     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2001     - land: change Evaporation of snow
2002     - aim with thSIce: fix bug in snow-precip.
2003    o changes to calc_gw.F
2004     - bug fix for w^2 term near the bottom boundary
2005     - (hopefully) improve the lateral slip boundary condtions for use with
2006        partial/looped cells
2007      - because the bug fix changes two verification experiments anyway (exp5
2008        and plume on slope), change the lateral boundary condition from half slip
2009        to the value of no_slip_sides
2010    o ebm package wasnt quite up to the parallel task. Fixed that.
2011    o Adjoint of EBM package + verification
2012      * TLM OK
2013      * ADM not sufficient accuracy yet (needs further testing)
2014    
2015    checkpoint53b_post
2016    o Commiting new energy balance model to repository
2017      * package is pkg/ebm
2018      * verif. is verification/global_ocean_ebm
2019      * references are in ebm_driver.F
2020    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2021    C        Global thermohaline circulation. Part I:
2022    C        Sensitivity to atmospheric moisture transport.
2023    C        J. Climate 12(1), 71-82
2024    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2025    C        Global thermohaline circulation. Part II:
2026    C        Sensitivity with interactive transport.
2027    C        J. Climate 12(1), 83-91
2028    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2029    C        Destabilization of the thermohaline circulation
2030    C        by atmospheric eddy transports.
2031    C        J. Climate 7(12), 1870-1882
2032    o Will need long integration testing.
2033    checkpoint53b_pre
2034    
2035    o created pkg/mom_common in preparation for variable viscosity code
2036    o renamed and split ini_mnc_io
2037    o pkg/land: only liquid water can diffuse or run-off
2038    o AIM using land: soil wetness availability account for snow
2039    o added printMapIncludesZeros to EEPARMS namelist
2040    
2041    checkpoint53a_post
2042    o restore TAMC compatiility for exf_constants.h
2043      (no usage of _d in .h)
2044    o Additional storing in KPP in an attempt to fix
2045      TAMC problem with adjoint of KPP code.
2046      (no success...)
2047      Identical code works fine with TAF.
2048    o Fixed verification/natl_box_adjoint experiments.
2049      Initial conditions for Experiments 4 and 5 are now
2050      set to "SEAICE_initialHEFF=0", which is more reasonable,
2051      and hence gives results closer to that of Experiment 2.
2052      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2053    
2054    checkpoint53
2055    o stable checkpoint with up to date adjoint
2056      TLM tests only run for 1st grdchk at the moment. Its unclear if
2057      this is a code problem or a problem with resetting code for g_
2058      variables that is being autogenerated wrong.
2059      Otherwise:
2060       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2061       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2062         are both still in chaos following their security messes.
2063    
2064    checkpoint52n_post
2065    o various build (mostly genmake2) changes including:
2066      - ability to build/run more easily within Cygwin and MacOS X
2067      - more complicated Makefiles with a stronger dependence on Gnu Make
2068    o pkg/seaice modifications
2069      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2070        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2071        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2072      - changed proxy for geostrophic velocity and updated
2073        verification/lab_sea/results/* accordingly
2074      - removed ADI dynamic solver from pkg/seaice
2075      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2076        they caused a segmentation fault under certain circumstances
2077      - removed unused field WATR
2078    o bug fix in exf-package:
2079      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2080         now reflect that.
2081    o small fixes in the cal-package:
2082      - set reference date to first of January for the 'model'-calendar
2083      - failing of cal_CheckDate in cal_FullDate now actually results in a
2084        warning
2085    o small modifications in exf-package to increase flexibility:
2086      - change climtempfreeze from a constant to a runtime parameter that
2087        is specified in data.exf_clim (default = -1.9)
2088      - introduce runtime parameter windstressmax (default = 2.0) that is
2089        specified in data.exf
2090    o fix in pkg/thsice:
2091      - update Evap (Tsf changes) to be consistent with Latent heat flux
2092      - maintain snow precipitation unchanged (even if Tsf >=0).
2093     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2094    
2095    checkpoint52m_post
2096    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2097      this does not change any of the results, because myIter=0 in swfrac always
2098      lead to jwtype=2 (the default anyway), but the call makes little sense
2099      as a default
2100    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2101    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2102      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2103    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2104    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2105    o extending useSingleCpuIO option to work with new exch2 I/O format
2106      - old-style, missing-tile I/O is still accessible by defining CPP
2107        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2108    o monitor package can write to NetCDF files and/or STDOUT
2109    o fix re-definition bug in MNC_GRID_INIT_ALL()
2110    o doc/api_reference added
2111      - a framework for building an API Reference Manual using all
2112        the "protex" comments embedded in the code
2113      - see pkg/generic_advdiff, pkg/mnc for examples
2114    o MNC:
2115      - make myThid the last argument for all subroutines
2116      - new default for the grid files: NO halos
2117      - add useMNC and other run-time flags
2118      - separate per-file-group handling of the unlimited dimension
2119      - early initialization of MNC w/ flags read at the eeboot stage
2120        and lookup tables set in initialize_fixed
2121      - write all MNC output to a freshly-created directory
2122    o thermodynamics sea-ice (thsice) is now tested with testreport.
2123    o test exp. advect_cs: use the standard cs32 grid ; update output.
2124    o Added functionality to grdchk:
2125      pick global i,j,k position (or nearest wet) where to perform check.
2126    
2127    checkpoint52l_post
2128    o new land formulation:
2129      a) use ground enthalpy as prognostic variable to ensure exact
2130         energy conservation.
2131      b) account for water temperature and for latent heat of freezing
2132         in all processes (rain, run-off, ground storage)
2133      c) compute surface and ground temperature implicitly.
2134    o aim_v23 modification for new land model:
2135      a) Treat separately land / ocean / sea-ice surface fluxes
2136         to allow implicit computation of land & sea-ice surface temp.
2137      b) add snow precipitation.
2138    checkpoint52l_pre
2139    
2140    o fix problem (when 1 tile is empty) in min/max monitor.
2141    o fix bug in timeAve (u,vZetatave in common block)
2142    o no restoring terms under ice for pkg/seaice
2143    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2144    o bug fix for pkg/seaice pickups
2145    o change MNC call locations and add coordinate attributes
2146    o mask vorticity at the corner ; affects global_ocean.cs output
2147    o fix ini_curvilinear_grid ; test CS experiments with mpi
2148    o aim.5l_cs: modify sea-ice fraction input file ; update output
2149    o exf: Adding simple range check routine for exf fields after read
2150    
2151    checkpoint52k_post
2152    o removed top-level directory "diags"
2153      - we migrated these functions to pkg/timeave a long time ago
2154    o fixed bug introduced in pkg/monitor
2155    o accuracy ctrlprec = 32 insuffient for gradient checks using
2156      averaged fields (I/O via cost_averages)
2157      -> use ctrl.h in active_file*.F to control I/O precision.
2158    o paramter list of CALL ADTHE_MAIN_LOOP
2159    o added initial do_the_model_io to ecco
2160    o set all ...Freq to zero after cost_final
2161      taveFreq, dumpFreq, pChkptFreq
2162    o MAIN and ECCO differentiability restored
2163    
2164    checkpoint52j_post
2165    o fix nchklev in tamc.h for global_ocean...
2166    o Bringing flow and store directives up-to-date
2167    o Really weird thing!
2168      call do_the_model_io from the_main_loop with parameters
2169      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2170      TAF places a faulty re-call of initialise_varia
2171      after cost_final call which should not be there!
2172    checkpoint52j_pre
2173    
2174    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2175      error messages
2176    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2177    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2178      debug output
2179    o modfied mdsio_writefield.F to handle non-global files under exch2
2180    o update AIM Cubed-Sphere exp (aim.5l_cs):
2181      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2182    o update AIM Equatorial Channel exp:
2183      use standard aim_v23 pkg and change the SST fields to be more realistic.
2184    o globalFile now works with exch2
2185    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2186      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2187    o limit timeave output for hi-res integrations
2188    
2189    checkpoint52i_post
2190    o removed CPP_EEOPTIONS.h from verification/*/code
2191    o updated the tiling for global_ocean_pressure
2192    checkpoint52i_pre
2193    
2194    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2195      the old pkg/aim).
2196    
2197    checkpoint52h_pre
2198    o shortened offending lines in exch2_send_rx?.template
2199    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2200    o genmake2: add build & execute test for NetCDF code
2201    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2202      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2203    o added useSingleCPUIO flag to monitor.F and mon_out.F
2204    o added temporary hack for sea-ice dynamics on the cube:
2205      metric terms are ignored and it is assumed that
2206      there is no sea-ice on cube faces 1, 2, 4, and 5.
2207    
2208    checkpoint52f_post
2209    o added exch2 cube routines to pkg/exch2
2210    o modified hs94.cs-32x32x5 to use it
2211    o added new grid files to hs94.cs-32x32x5
2212    checkpoint52f_pre
2213    
2214    checkpoint52e_post
2215    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2216      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2217    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2218      to work with implicit vertical advection and AB ;
2219    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2220    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2221     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2222    checkpoint52e_pre
2223    
2224    o fix bug in impldiff when Nr=1 or Nr=2.
2225    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2226    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2227    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2228      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2229    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2230    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2231    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2232    
2233    checkpoint52d_post
2234    o re-tiled many expts to allow comparison in multi-processor mode
2235      - updated output accordingly
2236      - changed hs94.128x64x5 to use intial T from file rather than use the
2237        random number generator
2238    o add infrastructure in model routines for fizhi and gridalt packages
2239    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2240    o changes to permit hi-res, cubed-sphere, configuration
2241      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2242      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2243      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2244        of surface winds for the cube
2245      (A verification experiment, based on global_ocean.cs32x15, but with
2246       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2247       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2248       complete with example surface forcing files and matlab scripts to look
2249       at the output and compare it with that of global_ocean.cs32x15.)
2250    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2251       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2252       to conform to the common rule.
2253    o check-in the first version of the coupler + interfaces for multi-components
2254       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2255       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2256       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2257       - ocean and atmos. share the same horizontal grid (no interpolation).
2258       - exchanges between component and coupler is done in forward_step
2259    o new verification experiment, cpl_aim+ocn:
2260       coupled ocean - AIM atmosphere on cs32 grid.
2261    
2262    checkpoint52d_pre
2263    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2264    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2265    
2266    checkpoint52c_post
2267    o Fixing OPTIONS files for use of exf:
2268      - ALLOW_ECCO not needed
2269      - ECCO_CPPOPTIONS.h should not be included from
2270        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2271        as has been the case in the past
2272      - All cal/exf related options are currently set in
2273        single header file. Should remain so until we
2274        agree on a consistent new policy.
2275    o Removed all CPP options for cal package.
2276      cal has no more CPP options.
2277    o modified STOREs in GAD_ADVECTION
2278    o corrected key comp. for passkey
2279    
2280    checkpoint52b_post
2281    o new version: "thsice" of thermodynamic sea-ice pkg:
2282     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2283     - modify fluxes but do not change theta directly;
2284     - light cleaning of bulk_force pkg (still needed with thsice).
2285     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2286       + output_thsice.txt to test thsice & bulk_force pkgs.
2287    o put back grid & coriolis monitor output.
2288    checkpoint52b_pre
2289    
2290    o call "do_the_model_io" at the beginning (=> dump initial state)
2291    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2292    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2293      (need info on NUMBER_OF_PTRACERS)
2294    o missing PTRACERS headers in some routines
2295    o default tamc.h in pkg/autodiff supposed to crash
2296      to ensure proper customization
2297    
2298    checkpoint52a_post
2299    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2300      - moved surfaceTendencyTice from pkg/seaice to main code
2301      - subroutine FREEZE_SURFACE now limits only surface temperature
2302        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2303        => new output.txt for global_ocean.cs32x15 & global_with_exf
2304      - keep the old version of FREEZE for backward compatibility;
2305        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2306      - corresponding modifs for TAF directives
2307    o added surface flux output variables to TIMEAVE_STATVARS
2308    o time-averaged output for pkg/ptracers
2309    o fix problem with ECCO-related divided adjoint
2310      snapshot file was missing some ad-variables,
2311      but no warning issued by TAF
2312    
2313    checkpoint52a_pre
2314    o some bug fixes for #undef REAL4_IS_SLOW
2315    
2316    checkpoint52 = ecco_c52_e35
2317    o after testing adjoints of checkpoint51u_post
2318    
2319    checkpoint51u_post
2320    o this is the post-merge tag of the ecco-branch
2321      (needs another clean checkout and re-testing)
2322    o various natl_box_adjoint configs and results
2323      but no input fields
2324    o obcs adjoint not yet merged!
2325    o adding ECCO global 1x1 and 2x2 degree configs
2326    o updated/extended some store directives for seaice
2327    o pkg/ecco now containes ecco-specific part of cost function
2328    o top level routines the_main_loop, forward_step
2329      supersede those in model/src/
2330      previous input data.cost now in data.ecco
2331      (new namelist ecco_cost_nml)
2332    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2333    
2334    checkpoint51t_post
2335    o this is the pre-merge tag of the ecco-branch
2336    
2337    checkpoint51s_post
2338    o cleanup: removed various obsolete #define-s
2339    o pkg/grdchk
2340      - renamed 'ph-grd 3' to 'grad-res'
2341      - merged from ecco-branch
2342        (remaining bug fixes for obcs gradient checks)
2343      - additional high-precision output for testreport
2344        (grep for 'precision_grdchk_result')
2345    
2346    checkpoint51r_post
2347    o cleaned up or removed CPP_OPTIONS.h files
2348    o updated results for some of the tests to reflect the new
2349      optfiles (-ieee: -O0 instead of -O3)
2350    
2351    checkpoint51q_post
2352    o cd_code:
2353      - moved cd_scheme.F -> cd_code_scheme.F
2354      - separate read_checkpoint from cd_code_ini_vars.F
2355      - separated cd_code part from write_checkpoint
2356      - updated AD_SOURCE, generated .flow
2357      - added CD_CODE_VARS.h to the_main_loop
2358      - Moving cd_code specific store dir.s to pkg/cd_code
2359    o ctrl package totally restructured
2360      - pack/unpack now optional and decoupled from
2361        xx_/adxx_ I/O
2362      - ctrl_pack/unpack cleaned
2363        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2364      - confined inclusion of AD_CONFIG.h to where necessary.
2365    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2366    
2367    checkpoint51p_post
2368    o create initial cd_code package
2369      - WARNING: the initialization of fields within packages
2370        is broken because INI_FIELDS (where READ_CHECKPOINT is
2371        called) is called *before* PACKAGES_INIT_VARIABLES.
2372        This seems to be backwards since
2373        1) its important to initially zero the entire field including
2374           the "halo" region
2375        2) zeroing needs to be done *before* reading pickup info
2376           and the pickup call might or might not happen in any
2377           particular run
2378      - this needs an overhaul for R2
2379    o cleanup verification/*/code/GMREDI_OPTIONS.h
2380    o cleanup testreport
2381    
2382    checkpoint51o_post
2383    o bringing AD-related verif's up to date with genmake2
2384      - carbon/
2385      - global_ocean.90x40x15/
2386      - hs.94.1x64x5/
2387      - (front_relax/ )
2388    o (more) consistent directory structure for AD-related verif.'s
2389    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2390    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2391    o bug fix in find_alpha.F for MDJWF:
2392      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2393        change rho -> rho-rhoConst
2394      - replace call find_rho to find_rhonum
2395    o initialisation of rFlx extended to full array (required by TAF)
2396      and shifted to thermodynamics
2397    o removed PTRACERS.h in ptracers routine
2398    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2399    o Correcting initialisations for fVerU, fVerV.
2400    o helping TAF to recognize dependency on kUp for
2401      fVerU, fVerV
2402    o Replacing delZ by delR in pkg/ctrl/
2403    checkpoint51o_pre
2404    
2405    o undid all of cp51 pending some cleanups and discussion
2406    o added the [#include "AD_CONFIG.h"] statement to all files that need
2407       it for adjoint/tl #defines
2408     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2409     o removed tools/genmake since it no longer works
2410    
2411    checkpoint51n_post
2412    o modifications to make FREEZE flux visible to pkg/kpp
2413      - moved surfaceTendencyTice from pkg/seaice to main code
2414      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2415      - subroutine FREEZE now limits only surface temperature
2416        (this means new output.txt for global_ocean.90x40x15,
2417         global_ocean.cs32x15, and global_with_exf)
2418    o added surface flux output variables to TIMEAVE_STATVARS
2419    
2420    checkpoint51n_pre
2421    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2422    o added [#include "AD_CONFIG.h"] to all files that use the following
2423      defines:
2424      - ALLOW_ADJOINT_RUN
2425      - ALLOW_TANGENTLINEAR_RUN
2426      - ALLOW_ECCO_OPTIMIZATION
2427    
2428    checkpoint51m_post
2429    o incorporating changes to get TAMC/TAF working in genmake2
2430      - added new TAMC/TAF targets to the Makefile
2431      - various cleanups related to package handling
2432      - these changes should have no impact on the forward model
2433    
2434    checkpoint51l_post
2435    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2436     - faster algorithm for cal_addtime.F
2437     - higher precision arithmetic, where needed
2438     - pkg/exf *startdate variables changed from calendar date to
2439       model integration time
2440    
2441    checkpoint51l_pre
2442    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2443    o enable to apply restoring on S & T only in a latitude band.
2444    o update output (external_forcing_surf modif. change truncation errors)
2445       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2446    
2447    checkpoint51k_post
2448    o change default to: useNHMTerms=.FALSE.
2449     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2450       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2451     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2452        exp1, ideal_2D_oce
2453     - change data file of oceanic exp (leave the results unchanged for now)
2454       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2455    o set gravitySign automatically according to the vertical coordinate used
2456      (and change sign: back to "logical" value: +1 when R increases downward)
2457    o added an include barrier to the default CPP_OPTIONS.h and
2458      removed the #include "PACKAGES_CONFIG.h" from it
2459    o fix a bug in mom_fluxform (from chk51j_post)
2460    
2461    checkpoint51j_post
2462    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2463    o adjusted some flow directives (dynamics, thermodynamics)
2464    o added cubed-sphere case to test cost function
2465    o heckpoint_lev?_directives.h now include
2466      pkg-specific directives, whenever those are enabled.
2467    o Moving pkg-specific flow directives to corresponding pkg
2468      Moving pkg-specific differentiation list to corresponding pkg
2469      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2470      ---> conventions are
2471           - pkg_ad.flow
2472           - pkg_ad_diff.list
2473           - pkg_ad_check_lev?_dir.h
2474    
2475    checkpoint51i_post
2476    o merge of the branch-genmake2
2477      - knowingly breaks the older genmake
2478      - automatic generation of all ALLOW_${PKG_NAME} defines
2479      - new testreport supersedes older testscript
2480    o large number of package inclusion and header cleanups
2481    checkpoint51i_pre
2482    
2483    o new output for adjoin of global ocean vector invariant
2484    o fix for checkpoint of thermodynamic seaice and bulk_force
2485    o Steph gchem various cleanups
2486    
2487    checkpoint 51h_pre
2488    o fixed some single quotes
2489    o modify gchem pkg to be more versatile
2490    o modifications to clean up dic pkg
2491    o add pkg/cfc
2492    
2493    checkpoint51g_post
2494    o provide links for ARPACK and ADM*TLM
2495    o start removing verification/vero/
2496    o update AD-related stuff
2497      (in particular some IF-statements in model/src/ routines)
2498    o adding to verification/global_ocean.90x40x15/ adjoint of
2499      vector invariant setup
2500    
2501    checkpoint51f_post
2502    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2503    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2504      of tracer Green's fucntions for ocean inversion project.
2505    
2506    checkpoint51f_pre
2507    o Added on-the-fly spatial interpolation capability
2508        "USE_EXF_INTERPOLATION" to pkg/exf.
2509      - This is a temporary Cartesian-grid hack until
2510        the super-duper ESMF coupler becomes available.
2511      - See verification/global_with_exf/README for usage example.
2512      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2513        flags and modified pkg/seaice accordingly.
2514    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2515        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2516        non-local transport term.
2517    
2518    checkpoint51e_post
2519    o pkg/mom_vecinv:
2520      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2521      - add time-ave diagnostic of vorticity advection.
2522    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2523    o atmospheric geopotential: - include water vapor effect;
2524                                - use p^kappa in p* scaling.
2525    o land pkg: read initial state from files.
2526    o AIM : add stratospheric drag in the upper level
2527    
2528    checkpoint51d_post
2529    o change function ILNBLNK (=> last non-blank char.) to return zero
2530      (instead of the string length) when the string. char is empty
2531    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2532    o modif's to restore TAMC compatibility
2533      - avoid "_d" constructs in PARAMETER declarations
2534      - avoid interrupting lines by comment lines
2535    o Use cluster local disks for purely local I/O
2536      vs. globally visible disks needed for ctrl stuff
2537      (merged from ecco-branch)
2538      - new active_file_loc... and mdsio_..._loc routines
2539      - affected packages: autodiff, ctrl, grdchk, mdsio
2540    
2541    checkpoint51c_post
2542    o introducing integer flag debugLevel
2543      - debLevZero: suppress all output
2544      - debLevA: standard
2545      - debLevB: equivalent to current debugMode=.TRUE.
2546    o introducing pathname variable mdsioLocalDir for mdsio
2547      that can be specified at runtime
2548      (relevant for cluster I/O to local disk)
2549    `
2550    >>>checkpoint51b_post
2551    adjoint of ptracers
2552    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2553    o extended state in checkpoint_lev?, etc.
2554    o alternative ctrl/cost with tr1 or ptracer
2555    o new comlev1_bibj_ptracers
2556    o new ptracers.flow
2557    o made ptracers_forcing same as external_forcing_s
2558    o added verification for adjoint with ptracers
2559      - adm. grdchk fail so far
2560      - tlm. grdchk OK
2561      - checked tapelev/comlev recomputations: OK
2562    <<<checkpoint51b_pre
2563    
2564    checkpoint51a_post
2565    o added code for biogeochemistry package
2566      - new pkgs: dic, gchem
2567      - new subroutine in ptracers
2568    o modify code for biogeo packages
2569      - in model/src and pkg/ptracers
2570    
2571    checkpoint51
2572    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2573      - autodiff, ctrl, exf, grdchk, seaice
2574      kept separate packages
2575      - cost, ecco, obcs
2576    o updating verification/internal_wave, verification/lab_sea
2577      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2578    
2579    checkpoint50i_post
2580    o Preparing next differentiable checkpoint and sync
2581      of MAIN vs. ecco-branch
2582      - 1st step: this one is differentiable
2583      - 2nd step: next(! not this) checkpoint will have updated packages
2584                  from ecco-branch)
2585    
2586    checkpoint50h_post
2587    o new package "land": provide surface BC for AIM.
2588    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2589    o AIM: use true log-P extrapolation for near surface temp (= as in
2590        F.Molteni paper) ; update aim.5l_cs output.
2591    o New variable in PARM03 for more flexible pickups
2592    o somewhat cleaned package initialisation sequence for
2593      ctrl/ cost/ ecco/ in packages_... routines
2594    
2595    checkpoint50g_post
2596    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2597      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2598      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2599        made the default because of faster convergence than ADI
2600    
2601    checkpoint50f_post
2602    o exf totally restructured
2603      - replaced all exf_set_ routines by one generic exf_set_gen.F
2604        and made sure it's still differentiable
2605      - split exf_getffields.F into new exf_bulkformulae.F
2606      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2607      - updated adjoint/makefile and relevant verif. accordingly
2608    
2609    checkpoint50f_pre
2610     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2611          + change Evap over land. (update aim.5l_cs output)
2612     o added missing .cvsignores and made uniform across expts
2613     o changed configuration of tidal_basin_2d expt
2614     o added pkg/debug functions for tracing code in fatal crashes
2615     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2616     o new fn in pkg/monitor to stop model if solution grows too big
2617     o removed lots of single quotes from comments
2618    
2619    checkpoint50e_post
2620    o make KPP work with PTRACERS
2621     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2622       nearly a copy of kpp_transport_s
2623     - there is no analogue to SurfaceTendencyS, so I have to use
2624       gPtr(of the surface layer) instead
2625    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2626    checkpoint50e_pre
2627    
2628    checkpoint50d_post
2629    o change kpp output from multiple-record state files to single-record state
2630      files analogous to write_state.F
2631    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2632      analogous to the cg2d-related output.
2633    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2634      so that writing to internal file fn (with length 512) fails.
2635    checkpoint50d_pre
2636    
2637    checkpoint50c_post
2638    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2639    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2640    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2641    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2642    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2643    
2644    checkpoint50c_pre
2645    Merging from release1_p13:
2646    o bug fix for pkg/seaice dynamic solver
2647    o Added SEAICE_initialHEFF to pkg/seaice
2648    
2649    checkpoint50b_post
2650    o store u*,v* in gU,V instead of in guNm1,gvNm1
2651    o in order to put the momForcing out of the Adams-Bashforth:
2652      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2653      to timestep.F
2654    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2655    o re-generate output for highly sensitive test-exp:
2656       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2657    
2658    checkpoint50b_pre
2659    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2660    o corrected CPP option mismatch in exf_Bulk... functions for case
2661      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2662    
2663    checkpoint50a_post
2664    o Bug fix for merging between c50 and KPP.
2665      ikey was passed from thermodynamics to kpp_calc via
2666      common block rather than being recomputed in kpp_calc,
2667      in contradiction with new key itdkey.
2668      New key ikppkey created, and tamc.h headers updated.
2669    
2670    checkpoint50
2671    - 2nd step of merge with ecco-branch:
2672      merge changes in ecco-branch back into main trunk
2673    - bug fix in find_alpha
2674    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2675    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2676    - merged some sliced AD support routines
2677    
2678    checkpoint49
2679    merged from ecco-branch:
2680    o exf:
2681      - Enable initialisation of forcing fields to constant
2682        (runtime) values.
2683      - in exf_getffields.F
2684        Reduce i-/j-loop to interior domain, discarding overlaps.
2685        That also fixes wrong TAF-key computations for key_1, key_2
2686        with bulf formulae.
2687      - exf_init.F modify #ifdef for exf_init_evap
2688      - exf_getffieldrec.F, ctrl_getrec.F
2689        The following INT-usages are not safe:
2690          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2691          fldcount = int(fldsecs/fldperiod) + 1
2692        and were modified.
2693    o autodiff: checkpoint_lev...
2694      - updated storing for bulk formulae (some arrays were missing)
2695      - added state for seaice package
2696      - synchronized with main branch
2697    o DIVA:
2698      Modif.s in
2699      - the_main_loop.F
2700      - the_model_main.F
2701      and added cost_final_restore.F cost_final_store.F
2702      o With these changes, it is possible to fully separate
2703        the first forward run to compute the cost function (mdthe_main_loop)
2704        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2705        into separate model executions.
2706        This enables better tuning of DIVA to given queue sizes.
2707      o Loss of cost function value in consecutive DIVA runs is
2708        fixed by storing to 'costfinal' file.
2709      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2710        beginning/end of adjoint integration is accounted for.
2711      The current changes apply to TAF-1.4.26.
2712      TAF has one remaining bug, requiring one manual change
2713      (see MITgcm manual).
2714    o cal: synchronized between MAIN and ecco-branch
2715    
2716    checkpoint48i_post
2717    o Changes to restore differentiability of code w.r.t. previous tag
2718      (mostly adding new routines to make list and replacing
2719      pressure by totPhiHyd).
2720    o Updated and merged grdchk package
2721      - has both ADM and TLM checks
2722      - works for single- and multi-proc.
2723      - output cleaned
2724      - worked successfully for parallel DIVA
2725    o genmake:
2726      - Adding -platform=SP4
2727      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2728    o Modif. for DIVA:
2729      ctrl_unpack should not be called in intermediate DIVA interval.
2730      (similar thing would apply for active files such as
2731      tbar, sbar, psbar, which should not be reinitialised;
2732      only relevant for ecco-branch)
2733    
2734    checkpoint48h_post
2735    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2736    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2737    o Added SEAICE_initialHEFF to pkg/seaice
2738    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2739    
2740    checkpoint48g_post
2741    --- EOS:
2742    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2743      store total Potential in totPhyHyd for diagnostics & EOS.
2744    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2745    --- Pressure/geopotential gradient:
2746    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2747    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2748      ( changes results of global_ocean_pressure )
2749    o NLFS + z-coord.: add eta*Rho' contribution.
2750    o accurate phiHyd when using interface-W at the middle between 2 centers
2751     ( changes results of ideal_2D_oce )
2752    o includes r* 2nd term in potential gradient.
2753    
2754    checkpoint48f_post
2755    Merging from release1_p12:
2756    o Modifications for using pkg/exf with pkg/seaice
2757      - improved description of the various forcing configurations
2758      - added basic radiation bulk formulae to pkg/exf
2759      - units/sign fix for evap computation in exf_getffields.F
2760      - updated verification/global_with_exf/results/output.txt
2761    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2762      (SBO) core products, including oceanic mass, center-of-mass,
2763      angular, and bottom pressure (see pkg/sbo/README.sbo).
2764    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2765      to avoid negative values in shallow regions.
2766      - updated verification/natl_box/results/output.txt
2767      - updated verification/lab_sea/results/output.txt
2768    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2769    o Added useSingleCpuIO option (see PARAMS.h).
2770    o Updated useSingleCpuIO option in mdsio_writefield.F to
2771      work with multi-field files, e.g., for single-file pickup.
2772    o pkg/seaice:
2773      - bug fix in growth.F: QNET for no shortwave case
2774      - added HeffFile for specifying initial sea-ice thickness
2775      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2776    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2777      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2778    o pkg/seaice:
2779      - adjoint-friendly modifications
2780      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2781    
2782    checkpoint48e_post
2783    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2784    o dynamics: change definition of computational domain & adapt mom_fluxform
2785      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2786    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2787        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2788        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2789        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2790        inverted_barometer solid-body.cs-32x32x1
2791      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2792    
2793    checkpoint48d_post
2794    o in preparation for r*:
2795     a) use pre-computed gradient of hydrostatic potential:
2796        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2797     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2798        => affects results of glob_oce_pressure (different truncation error)  
2799      update output.txt of ideal_2D_oce & global_ocean_pressure
2800    
2801    checkpoint48d_pre
2802    o in preparation for r*:
2803      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2804      pass the 2 comp. of the grad. as arguments to momentum S/R.
2805      but for the moment, only used if it does not change the results.
2806    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2807    
2808    checkpoint48c_post
2809    Modifications in treatment of initial flux forcing controls
2810    to avoid extra storing of flux fields.
2811    
2812    checkpoint48c_pre
2813    o Added tidal_basin_2d experiment (currently 1D!)
2814    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2815    
2816    checkpoint48b_post
2817    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2818     (modification to pressure gradient not yet implemented)
2819    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2820      (for U & V) that are used for vertical advection of momentum.
2821    
2822    checkpoint48a_post
2823    o In preparation for r*, use temp. array to compute vertical transport
2824       in flux-form momentum pkg. => change results of few test-exp.
2825      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2826                        lab_sea, natl_box & plume_on_slope
2827    
2828    checkpoint48
2829    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2830    
2831    checkpoint47j_post
2832    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2833    o moved adexch from forward_step to addummy_in_stepping
2834    o added exch in ctrl_map_...
2835    o aveFreq.=0. at end of cost_final to avoid overwrite in
2836      reverse checkpointing loop
2837    o Yet more changes in gmredi:
2838      * adgmredi_calc_tensor
2839        avoiding all recomputation of gmredi_slope_limit
2840      * adgmredi_x/y/rtransport
2841        added flag for excessive storing to avoid recomp. of
2842        u/v/rtans, dTdx/y/z
2843        -> this is not really necessary and very memory-consuming
2844      * adgmredi_slope_psi:
2845        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2846      * gmredi_slope_limit
2847        re-activated full calculation of taperfct for case 'ac02'
2848    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2849    
2850    checkpoint47i_post
2851    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2852    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2853      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2854    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2855    o gmredi: fix few bugs.
2856    
2857    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2858    This will be a good checkpoint to plug into the ecco-branch.
2859    o few modif.'s to get latest version adjointed
2860      (mainly kick out code in ini_linear_phisurf)
2861    o modif's to run adjoint with exactConserv
2862    o case GM_BOLUS_ADVEC should be cleaned
2863      S/R gmredi_slope_psi should be cleaned
2864    o verification/carbon now has exactConserv=.TRUE.
2865    
2866    checkpoint47g_post
2867    o time-average AIM output: becomes independent from statvars time-average
2868      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2869    o After TAF bug fix:
2870      Tested adjoint of gmredi package.
2871      Tests were done with checkpoint47 rather than with latest
2872      checkpoint47f_post since the latter is broken for the adjoint
2873      verification/carbon/ contains both ADM and TLM gradient checks.
2874    Here they are, before they get changed/lost/stolen.
2875    Mostly modif.'s to fix numerical sensitivities.
2876    Gradient checks OK for
2877    - GM_taper_scheme:
2878      * clipping
2879      * ac02
2880      * linear
2881      * glw91
2882      * dm95
2883      * ldd97
2884    - GMREDI_OPTIONS:
2885      * GM_VISBECK_VARIABLE_K
2886      * GM_NON_UNITY_DIAGONAL
2887      * GM_EXTRA_DIAGONAL
2888      * GM_BOLUS_ADVEC
2889    in conjunction with data.gmredi parameters to be checked in
2890    in a few minutes under verification/carbon/code/
2891    
2892    checkpoint47f_post
2893    Merging from release1_p10:
2894    o modifications for using pkg/exf with pkg/seaice
2895      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2896        and SEAICE_EXTERNAL_FLUXES
2897      - pkg/exf CPP options EXF_READ_EVAP and
2898        EXF_NO_BULK_COMPUTATIONS
2899      - usage examples are Experiments 8 and 9 in
2900        verification/lab_sea/README
2901      - verification/lab_sea default experiment now uses
2902        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2903    
2904    checkpoint47e_post
2905    o created a tag prior to creating a branch
2906    
2907    checkpoint47d_post
2908    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2909      at the bottom boundary had an erroneous half slip boundary condition
2910    o added bottom drag and no slip boundary condition capabilities to
2911      oceanic pressure coordinates code
2912    o added new verification experiment global_ocean_pressure, this experiment is
2913      also described in the tutorial section of the manual
2914    checkpoint47d_pre
2915    
2916    checkpoint47c_post
2917    o Added a verification experiment for a global cubed-sphere ocean run
2918      -  verification/global_ocean.cubed32x32x30
2919      -  uses pkg/therm_seaice and pkg/bulk_forcing
2920    
2921    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2922    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2923      when using P-coordinate; only implemented for atmospheric config.
2924    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2925      NOTES: requires option NONLIN_FRSURF to be "#define".
2926    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2927    
2928    checkpoint47b_post
2929    Merging from release1_p9:
2930    o pkg/seaice
2931      - removed GOTO's and added taf directives
2932      - double precision constants to reduce the g77 (Linux)
2933        to F77 (SGI) differences reported in release1_p8
2934    o tools/genmake
2935      - added SGI options
2936    o verification/testscript
2937      - updated to that of checkpoint47a_post
2938    o verification/global_ocean.90x40x15/input/eedata
2939      - modified for SGI f77 compatibility
2940    o verification/lab_sea
2941      - added description of sea-ice model
2942      - added missing matlab routines
2943      - added test of thermodynamics parallelization
2944    
2945    checkpoint47a_post
2946    o new pkg: aim_v23
2947     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2948       for now, keep the same surface forcing as before.
2949     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2950     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2951     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2952    o add diagnostic of surface correction term in monitor output
2953    
2954    o bulk_force and therm_seaice
2955    - Two packages:  bulk_force (Bulk forcing)
2956      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2957    - Earlier integration from Stephaine Dutkiewicz
2958      and Patrick Heimbach.
2959    - Two ifdef statements for compile time,
2960       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2961    
2962    checkpoint47
2963    differentiable version of checkpoint46n_post
2964    o bug fix in quasihydrostaticterms
2965    o * "clean" adjoint code (in terms of extensive recomputations)
2966        can now be obtained for all GMREDI options (i.e. for
2967        - GM_VISBECK_VARIABLE_K
2968        - GM_NON_UNITY_DIAGONAL
2969        - GM_EXTRA_DIAGONAL
2970        - GM_BOLUS_ADVEC )
2971      * However, wrong gradient check problem remains unsolved.
2972      * New CPP options have been introduced for different
2973        tapering schemes
2974    o external_fields_load now part of differentiation list
2975    o pressure needs multiple storing;
2976      would be nice to have store_pressure at beginning or
2977      end of forward_step, e.g. by having phiHyd global (5-dim.)
2978      (NB: pressure is needed for certain cases in find_rho,
2979      which is also invoked through convective_adjustment).
2980    o recomputations in find_rho for cases
2981     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2982    o #define ATMOSPHERIC_LOADING should be differentiable
2983    o ini_forcing shifted to begining of initialise_varia
2984    o Incorporating QNVS line search routines into MITgcm
2985      (this is separate code, and therefore not under pkg)
2986      lsopt/, optim/
2987    o Updated verification/carbon/
2988      - #define GM_VISBECK_VARIABLE_K
2989      - GM_taper_scheme    = 'ldd97'    
2990    
2991    checkpoint46n_post
2992    Merging from release1_p8:
2993    o verification/natl_box:
2994      updating new external_fields_load routine
2995    o New package: pkg/seaice
2996      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2997      The sea-ice code is based on Hibler (1979-1980).
2998      Two sea-ice dynamic solvers, ADI and LSR, are included.
2999      In addition to computing prognostic sea-ice variables and diagnosing
3000      the forcing/external data fields that drive the ocean model,
3001      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
3002      The implied surface heat flux is then stored in variable
3003      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
3004      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
3005      non-local transport term.  Because this call precedes model
3006      thermodynamics, temperature under sea-ice may not be "exactly" at
3007      the freezing point by the time theta is dumped or time-averaged.
3008      N.B.: fairly large differences in accuracy occur across
3009            different platforms/compilers; comparison between
3010            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
3011            generated output gives:
3012       T           S           U           V
3013      C D M    c        m  s        m  s        m  s        m  s
3014      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
3015      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
3016      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
3017    
3018      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
3019    o GAD:
3020      - generated new common blocks to account for call of
3021        same gad routines with differing traceridentities
3022        (needed to modify tracerIdentity indices in GAD.h)
3023      - generated separate common blocks for case useCubedSphereExchange
3024        (Department of Futurology)
3025      - parameter lists to gmredi_?transport: added tracerIdentity
3026      - added new key indices to tamc.h
3027    o external_fields_load:
3028      - added this routine to TAF list
3029      - needed to make some common blocks global and additional storing
3030        along the same lines as exf package (checkpoint_lev?_directives.h)
3031    o exf:
3032      updated external forcing package
3033      - bug fixes carried over from ecco-branch
3034        (missing OBCS_OPTIONS.h in two routines)
3035      - enable easy to use "no forcing".
3036      - added exf I/O for atmospheric loading
3037      - added exf I/O for runoff data
3038      - transfered scaling between exf <-> MITgcm to exf namelist
3039    o Adding new verification experiment global_with_exf.
3040      This verification experiment is almost identical to the
3041      global_ocean.90x40x15 experiment, except that it uses
3042      the exf (and cal) package instead of the
3043      external_fields_load routine (cf README file).
3044    
3045    checkpoint46m_post
3046    o modified testscript to return -- when there are no lines of "%MON" output
3047    o added new flag "quasiHydrostatic" for QH mode
3048      and new routine quasihydrostaticterms()
3049    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
3050      New routine: mom_u_coriolis_nh()
3051    o fixed sign of non-hydrostatic metric terms in u and v equations.
3052      Depend on correct sign of gravitySign.
3053    o added work.pc* to .cvsignore in aim directories using ifc
3054    o introduced flag for controllin non-hydrostatic metric terms
3055  o removed gravitySign from PARM04  o removed gravitySign from PARM04
3056  o switched to g77/ifc from pgf77 in aim experiments  o switched to g77/ifc from pgf77 in aim experiments
3057    

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