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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.895 by heimbach, Fri Oct 19 21:03:09 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 adjoint:
8      * fix multiDimAdvection adjoint
9        (partial recomputation problem by TAF for fVerT(:,:,kDown)
10        and comlev1 size definition (maxpass vs. max. number of tracers)
11      * verification/global_ocean.90x45x15 adjoint now tests
12        NLFS and multiDimAdvection using DST3 (=30)
13      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
14    o pkg/kpp: add "_d 0" to real constant (if missing);
15      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
16      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
17    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
18      for internal parameters related to restart process (formerly from PARAMS.h)
19      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
20    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
21      as argument. (only atm2d & obcs write_pickup have not yet been updated)
22    o pkg/monitor:
23      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
24      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
25      - account for deep Atmosphere factor and density factor (anelastic)
26    o added open boundary conditions capability for seaice HEFF and AREA
27    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
28      thermodynamics
29      - requires a little reorganization, which affects the testreport results
30        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
31        so that now the conservative form is tested
32      - add a few comments
33    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
34    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
35    o add new diagnostics to seaice: advective, diffusive fluxes (only for
36      multidim-advection, for scheme 2 they are not filled) and transports,
37      thermodynamic growth rates
38    o change units of EmPmR (inside the code) from m/s to kg/m2/s (mass flux) but
39      leave input file unchanged. Affects results @ truncation level (cg2d match)
40      and update output of experiments: lab_sea(6), global_ocean.90x40x15(10),
41      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
42      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
43      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
44    
45    checkpoint59h
46    o pkg/exf:
47      - improve vectorization by moving if-statement out of loops in
48        exf_mapfields, exf_radiation
49      - exf_bulkformulae.F: introduce 2D fields and vectorize code
50    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
51    o testreport:
52      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
53        monitor & update offline_exf_seaice exp. output.
54      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
55    o pkg/seaice:
56      - bug fix in the evp solver: boundary conditions were affected be
57        masking of zMax/zMin (changes results)
58      - minor bug fix in boundary conditions in seaice_calc_strainrates
59        (changes results for no_slip)
60      - seaice_lsr.F: make interpolation of eta dependent on boundaries
61      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
62      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
63        stress formulation and no-slip boundary conditions
64    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
65      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
66    o pkg/seaice: a first HSALT time stepping equation has been checked in
67    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
68      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
69      without requiring DO-IF statements
70    o pkg/thsice:
71      use continuous power-law function for partition of energy between lateral
72      melting/freezing and thinning/thickening ; old code using step function
73      still available with #undef THSICE_FRACEN_POWERLAW
74      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
75    o testreport: change AD testing : check against results/output_adm.txt
76      using same scripts as for forward test.
77    
78    checkpoint59g
79    o adjoint testing: in preparation for changing testreport:
80      - output format: cost and grad written on separated lines
81      - ad output results in directory "results" (instead of "results_ad")
82    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
83    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
84    o pkg/ecco: allow user defined cost function contributions
85    o testreport:
86      Allow to choose (per experiment) the list of tested output variables
87       and the main variable (used to issue a pass/FAIL ) ;
88      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
89      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
90      Also modify printing of summary:
91       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
92       b) echo the list of tested variables in the individual summary.txt of
93          each experiment.
94    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
95      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
96      (but still depend on the tile decompostion of the domain).
97    o pkg/seaice: change a discretization detail to make the B-grid code
98      "more symmetric". This change is likely to remove all "ridges/leads" that
99      where quasi-aligned with the grid in B-grid solutions. It may also be
100      the solution to the stress coupling issues with the B-grid.
101    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
102      remove .cvsignore from input dir. (since testreport no longer run here).
103    o pkg/thsice:
104     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
105     - fix reshaping of sea-ice just after advection:
106       melt all the ice only if ice-volume is too small.
107     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
108       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
109     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
110    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
111      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
112    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
113      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
114      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
115      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
116      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
117      -> update output.txt
118    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
119     this affects truncation error: -> update output.txt of exp:
120      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
121      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
122    
123    checkpoint59f
124    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
125    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
126      a bounded range (in forward mode)
127    o pkg/ecco, ctrl, autodiff and mom_common:
128     internal parameter controls, completements of implementations
129    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
130    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
131      (not seem any difference in testing results).
132    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
133       at face corners.
134    o pkg/generic_advdiff:
135     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
136      loop range indices for computing vertical advection tendency
137      and do the calculation in the interior only (no overlap) ;
138      for now, only implemented for SOM advection (to save CPU time).
139     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
140    o exch2 adjoint
141      First set of changes:
142      - add exch2 hand-written adjoint templates
143      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
144        This will require cleanup in pkg/autodiff/*.F
145        (changed routines currently kept separate in verif. code/)
146      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
147        that used to hide exch2 or cubed-sphere specific code
148        (commented via 'cph-exch2')
149    o pkg/seaice
150      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
151    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
152       output of global_ocean.cs32x15.thsice .
153    
154    checkpoint59e
155    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
156      for B-grid vector (not yet tested) and C-grid vector (<- only used
157      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
158    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
159      (#ifdef ALLOW_SALT_PLUME)
160    o gather_2d/scatter_2d: removed halo regions
161    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
162      scheme and the corresponding test case (under front_relax dir). For now,
163      only available with Skew-flux form and not yet tested in realistic set-up.
164      adjoint: store directives updated, but gradient checks deteriorated,
165      so maybe GM/Redi adjoint is now broken.
166    o seaice adjoint
167      * add AREA, HEFF, HSNOW as control variable
168        (should not change lab_sea results)
169      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
170    o pkg/seaice:
171      * added computation of saltFlux in seaice_growth;
172        For time being, sea ice salinity is assumed constant
173        contribution of snow flooding to freshening of sea ice is neglected.
174        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
175        defaults to 0.0 in order to maintain backward compatibility.
176        Typical values for SEAICE_salinity are 4 to 10 g/kg.
177      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
178      * added SEAICE_availHeatFrac, which specifies fraction of surface level
179        heat content used to melt or grow ice
180      * commented out cap of HICE: it helps keep ice thinner
181      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
182      * applied OBCS T/S mask to HEFFM sea ice mask
183    
184    checkpoint59d
185    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
186     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
187     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
188    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
189     and change default value of parameter "GM_Small_Number";
190     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
191       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
192       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
193    o pkg/ecco: cost function when applying pkg/smooth to controls
194    o pkg/ctrl: add forcingPrecond run time parameter
195    o pkg/seaice:
196     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
197     - fix bug in metric terms of u-equation in LSR solver (implicit part),
198       changes verification/lab_sea
199     - rearrange implicit part of u-equation in LSR solver to make it easier to
200       read, understand, and debug. This causes changes at the truncation level.
201     - fix (serious) bug in the boundary conditions (sign error in the implicit
202       part) of the LSR solver. Changes all LSR results.
203     - fixed problem with HSNOW initialization to avoid thick snow when AREA
204       is initilized with small values - does not change lab_sea results.
205     - added HsnowFile initialization capability
206    o pkg/smooth: addition to model/src and pkg/ctrl so allow
207     initialization of pkg/smooth and application to control vector
208    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
209    o dependencies: pkg/profiles requires pkg/cal
210    o pkg/profiles:
211     - added option ALLOW_PROFILES_GENERICGRID
212         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
213         that interpolation information (grid points and coefficients) is provided
214         within the netcdf input files.
215         -> sample matlab scripts can be found in MITgcm_contrib/gael
216         that allow you to prepare netcdf input files.
217     - also modified: cleaner include statements, cleaner error print statements,
218       cleaner stops when error, and more tests of the netcdf input files consistency.
219    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
220    o pkg/seaice:
221     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
222       requires a new routine: seaice_diagnostics_fill.F
223     - make sure that seaice does not move if not forced (pressure replacement
224       method, Hibler and Ip, 1995), changes results
225     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
226     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
227       It is turned off by default (=-1.), because it changes the results.
228     - make it possible to read AREA from a file, too.
229    
230    checkpoint59c
231    o add S/R and diagnostics for oceanic mixed-layer depth
232    o move GMRedi call after all vertical mixing schemes (including KPP)
233    o pkg/thsice:
234     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
235      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
236    o pkg/obcs:
237     - bug fix for balance code
238    o pkg/seaice:
239      - allow values of SEAICE_elasticParm > 1
240      - add new parameter SEAICE_evpTauRelax as an alternative
241        to SEAICE_elasticParm
242      - make lsr boundary conditions free slip (by default), changes result
243      - add code for no slip boundary conditions for lsr
244      - set minimum of zeta to zero (and not 4e8) (changes results)
245      - add a cap on AREA after advecting AREA if seaice_growth is not called
246    o change calculation of Visbeck K:
247      - no longer depend on tapering scheme; instead, compute slope (limited
248        by GM_maxSlope). this is equivalent to what was comuted before with
249        clipping or linear tappering.
250      - fix vertical averaging (wrong by 1/2 level)
251      - leave the old version (but will not be maintained) within
252        #ifdef OLD_VISBECK_CALC / #endif
253      - update output of exp. ideal_2D_oce
254    o change error catch in calc_r_star to improve vectorization
255    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
256      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
257    o adjoint:
258      Re-organized adjoint checkpointing according to Matt Mazloff
259      (but with modifs/completions/cleanups)
260      Storing is now bundled into large arrays to optimized I/O
261      (and second step in cleanup of the_main_loop)
262    
263    checkpoint59b
264    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
265      - export/import (between ocean & coupler) fields needed for ocean DIC.
266    o pkg/seaice:
267      - get rid of three more exchanges seaice_calc_viscosities (required
268        different loop boundaries in seaice_lsr and seaice_ocean_stress)
269      - bug fix in seaice_ocean_stress (update of lab_sea required)
270      - reduce loop boundaries to necessary minimum also in seaice_evp
271      - go back to the old way of computing deltaC/Z as the adjoint likes that
272        better
273    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
274      passive tracer to an Age Tracer) + update output.txt
275    o pkg/exf:
276      - implement A-grid / C-grid selection for wind-stress input files.
277      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
278      for now, in exf_bulk_largeyeager04.F only :
279      - change implementation for case where windspeed + 2. components wind-stress
280        are read-in. AND use rhoConstFresh to convert evap.
281    o pkg/seaice:
282      - use correct EXCH_UV for wind-forcing (on A-grid).
283      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
284        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
285    o pkg/exf:
286      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
287      EXF_INTERPOLATION:
288      - merge global_with_exf/code version of exf_interp_read.F
289        to the main code ;
290      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
291        reading the file ; Important: This options needs to be defined to recover
292        previous code.
293        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
294      - no longer loose real*8 precision along the way when using exf_iprec=64.
295    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
296      - change discretisation of evp-solver in order to avoid another exchange
297        (changes lab_sea) and clean up a little
298      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
299        help the adjoint (this also changes the results slightly)
300      - add a few "_d 0" where they had been missing in seaice_evp.F
301      - cleaning up: remove unused seaice_calc_rhs.F
302    o pkg/exf: some cleaning-up:
303      - change various "constants" into runtime parameters
304      - cleaned-up Large&Yeager04 routine which should eventually
305        replace exf_bulkformulae.F (changed names of S/R and CPP)
306        and merged various ALLOW_ATM_WIND options
307     only used with thsice pkg (in thsice_get_exf.F):
308      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
309        which are used when useStabilityFct_overIce=TRUE (= the default)
310      - change default values of ice & snow emissivity and scale downward LW
311        by ice & snow emissivity.
312    o pkg/thsice:
313     fix few little problems, in thsice_calc_thickn.F:
314      - growth vertically (and not laterally) if iceFrac == iceMaskMax
315      - melt only laterally if hIce < hThinIce (as the comments say)
316      and in thsice_extend.F:
317      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
318      - start to form ice as soon as the minimum ice-volume is reachable.
319     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
320      and cpl_aim+ocn
321    o pkg/kpp
322     - move computation of surface related input fields to KPP into a new
323       subroutine kpp_forcing_surf.F
324     - remove wrong (within bi,bj loops) EXCH calls.
325     - little cleaning (add argument myThid in last position, cvs header ...)
326     - for now, fix conservation problem by exchanging KPPviscAz (may not
327       be the best fix)
328    o pkg/seaice
329     - check for inconsistent evp parameter/cpp-flag combination
330     - remove leftover errIO flat for obsolete name list error handling
331    o OpenAD
332     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
333    
334    checkpoint59a
335    o pkg/seaice: some parameter clarifications and a little bit of clean up
336    o pkg/thsice: rename run-time parameters:
337       himin       -> hIceMin
338       himin0      -> hThinIce
339       hihig       -> hThickIce
340       i0          -> i0swFrac
341       transCoef   -> bMeltCoef
342       frac_energy -> fracMelting
343      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
344       with default values (for now) that do not change the results.
345      remove old version of thsice vars advection in pkg/seaice.
346    o in FFIELDS.h:
347      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
348      - make pLoad & sIceLoad always available (but still only used if
349         ATMOSPHERIC_LOADING is #define).
350    o pkg/kpp: replaced _KPP_RL with _RL
351    o bug fixes for vertical diffusivity computations when both KPP and
352        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
353        are no longer updating the vertical diffusivity array
354        (passed as argument) but are (re-) setting those arrays.
355    o pkg/seaice: fix bug in evp solver, while doing that
356      - change (improve?) discretization of stress computations for both
357        cgrid-lsr and evp solver
358      - add a new routine to compute strain rates
359      - the above changes lab_sea results
360      - add no slip conditions for evp solver (off by default), lsr-version
361        may follow
362      - fix exchange for shear at Z-points (does not change lab_sea)
363      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
364        (to force the user to pick a time step since there is not "safe" way
365        of choosing it)
366      - add principal stress diagnostics
367      - rearrange fields for evp a little to avoid having to call a: too many
368        exchanges and b: exchanges for stress trensor components which we do
369        not have.
370      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
371        of evp, complete rewrite for lsr case (latter is does not yet work
372        in all cases)
373    o pkg/kpp: add code to have mixing in shelf ice caverns
374      - add myThid to all kpp routines (long overdue)
375    
376    checkpoint59
377    o pkg/exf:
378      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
379        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
380      - move exf header files from lower_case.h to UPPER_CASE.h ;
381        add missing cvs Header & Name
382      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
383      - add namelist param. selectStressGridPosition, exf_monFreq
384      - retire many _CLIM routines, and remove data.exf_clim
385        + params moved to data.exf
386        + climsst, climsss now handled by exf_set_gen, i.e.
387          climss?period=0 refers to constant field,
388          climss?period=-12 to monthly forcing
389      - split up namelists in data.exf
390    o pkg/seaice:
391      - remove seaice_exch and seaice_exch_uv
392      - remove superfluous exchange of theta
393      - add myThid to seaice_budget_ocean/ice
394      - add new interface for atmospheric wind forcing (C-grid only)
395        + new routine
396        + two new field (taux, tauy for stress over ice)
397        + removed one global field (DAIRN) for C-grid case only
398    o pkg/thsise
399      - 2nd set of modifs for thsice adjoint in conjunction with exf
400    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
401    
402    checkpoint58y_post
403    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
404      vertical diffusivity, similar to that in MOM4; turned on using
405      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
406      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
407    o Added capability for 3D specification of background vertical diffusion
408      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
409      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
410      "data" file that contains the 3D vertical diffusivity coefficients.
411    o ice dynamics (pkg/seaice) with thsice thermodynamics:
412      - add code within pkg thsice to advect & diffuse sea-ice fields
413      similar to (and will replace) what has been added in  seaice_advdiff.F,
414      but: - conserving Mass, Heat & Salt.
415           - better when using non-linear advection scheme (not yet fully tested)
416           - can also be used in atmospheric set-up (for now, only the diffusion).
417    
418    checkpoint58x_post
419    o IO option for global-file compact format:
420      - add options when generating topology (utils/exch2/matlab-topology-generator)
421      - add I/O capability (pkg/mdsio).
422      - adapt utils/matlab/rdmds.m to read this format.
423      for now long-line format not yet supported by pkg/mdsio (& exch2).
424    o shelfice: add a few diagnostics
425    
426    checkpoint58w_post
427    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
428      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
429      (and replace horiVertRatio in NH code).
430      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
431                         and tutorial_plume_on_slope (sensitive to truncation)
432    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
433      directly to drive seaice model (C-grid only)
434    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
435     - reintroduce computation of wind from stress,
436     - compute tau (in exf_bulkformulae.F) from windstress averaged to
437       mass points to avoid tau = 0
438     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
439    o rdmnc.m: make it work with "global" files created with gluemnc
440    o rdmnc.m : some improvements in dealing with singleton dimension
441      (tested on all testreport mnc output files).
442    o genmake2: disable pkg/profiles if netcdf test fails.
443    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
444    o move call to cal_readparms up to make calendar parameters/variable available
445      to all packages
446    
447    checkpoint58v_post
448    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
449      useDynP_inEos_Zc tested.
450    o pkg/exf: changes to properly interpolate/mask/scale initial fields
451    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
452      and portions thereof.  See read_cs.txt for description and examples.
453    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
454      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
455      following the great-circle arc between those 2 points.
456    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
457      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
458    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
459     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
460     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
461     - still needs work (not working with some options ; efficiency to improve)
462       and serious testing.
463     - use this scheme for temperature & salinity in 2 advection test exp.:
464       advect_xy & advect_xz, respectively.
465    
466    checkpoint58u_post
467    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
468    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
469    o testreport: add option "-skipdir" to skip some test.
470    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
471      momentum calculation.
472    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
473    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
474      remove checkpoint.F and the_correction_step.F (no longer used);
475      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
476    o add option (linFSConserveTr) to correct for tracer source/sink due to
477      Linear Free surface
478    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
479    o pkg/thsice: fix reading mnc-pickups
480    
481    checkpoint58t_post
482    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
483    o pkg/mdsio:
484     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
485       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
486       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
487     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
488     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
489       either MDS_READ_FIELD or MDS_WRITE_FIELD )
490     - new S/R (to replace MDSWRITEMETA), which allows to write more
491       informations (variable names, time ...) to meta files.
492     - modify rdmds.m to give back the meta file content.
493    o pkg/diagnostics: change vertical interpolation to be safer, and more
494       flexible (define p-levels to interpolate to in data.diagnostics);
495      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
496       diagnostic pointer.
497    o pkg/seaice: more cleaning up of seaice_growth, added many comments
498    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
499    o fix multi-category seaice:
500     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
501       SEAICE_MULTICATEGORY
502     - fix short wave heat flux
503    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
504       and allow to use EVP solver. Change forward lab_sea: test both EVP
505       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
506    o Initial check-in of lab_sea adjoint
507      (very similar to natl_box_adjoint/code_seaice)
508      * used C-grid and EVP solver
509      * used KPP, GM/Redi
510      * uses inAdExact=.TRUE.
511      * gradient checks fail for both ADM and TLM
512        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
513        f.d. gradients actually seem more problematic than ADM, TLM gradients;
514        issue is related to forward mismatch between g77 an ifort
515    o pkg/seaice: overhaul of thermodynamics
516     - growth.F and groatb.F are replaced by new routine seaice_growth.F
517     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
518     - move a few global fields out of SEAICE.h into seaice_growth.F and
519       make them 2D (FICE/QNETO/ ...)
520     - remove FO (it is the same as QNETO)
521     - introduce a few local fields to avoid modifying external fields such
522       as atemp, etc.
523    
524    checkpoint58s_post
525    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
526      changed exf_set_gen.F so that
527        genperiod=0 means input file is one time-constant field and
528        genperiod=-12 means input file contains 12 monthly means
529    o CG2D: use pre-computed solver main-diagonal (stored in common block);
530      this affects truncation error ; generate new output file for exp. which
531      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
532        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
533        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
534        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
535        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
536        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
537    o start implementation of deep-atmosphere and anelastic formulation
538    o verification: remove 2nd copy of input files and use script "prepare_run"
539      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
540    o mom_common/vecinv/fluxform: fix a few initialisation isssues
541    o profiles: fix for multithreaded case
542    
543    o diagnostics: rename few diags:
544      s/'PRESSURE'/'RCENTER '/g
545      s/'TICE    '/'oceFreez'/g
546      s/'TAUX    '/'oceTAUX '/g
547      s/'TAUY    '/'oceTAUY '/g
548      s/'SWFLUX  '/'oceQsw  '/g
549      s/DIFx/DFxE/g
550      s/DIFy/DFyE/g
551      and add few ocean-forcing diagnostics:
552      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
553    o modifications to pkg/seaice/growth.F and budget.F, which change results of
554      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
555      as actual snow thickness.  It now refers everywhere to effective snow
556      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
557    
558    checkpoint58r_post
559    o modifications to pkg/seaice/growth.F, which change results of
560      lab_sea experiment: fixes pertain to melting snow over open water, to
561      masking EVAP under sea ice, and to using the correct AREA variable for
562      computations of EVAP, PRECIP, HSNOW, and GHEFF
563    o add ability to read bathy, salt, and theta using MNC (off by def)
564    o add flooding algorithm and advection of HSNOW for pkg/seaice;
565      both are turned off by default and do no change any results
566    o seaice advection with pkg/thsice: a step toward the use of non-linear
567      advection scheme, but #ifdef or commented out for now (requires more EXCH).
568    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
569      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
570      in natl_box (affects results @ truncation level: update output.txt)
571    o multi-threading and IO:
572      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
573      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
574        (needed to work with SingleCpuIO): tested in all verif. exp.
575    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
576      affects the results (but none of the verification test uses this scheme).
577    o Adding some pkg/diagnostics capability to pkg/seaice
578      (will certainly be subject to changes)
579    o ctrl: adding new control variables:
580      lwflux, lwdown, evap, snowprecip, apressure, runoff
581    
582    checkpoint58q_post
583    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
584      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
585      high_res_cube configuration by 4% on Columbia.
586    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
587      add (in global_with_exf/code) a version of EXF_INTERP_READ without
588      dynamical allocation (seems to work in multi-threaded).
589    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
590      single CPU io) so that TAF does not have to see EESUPPORT.h
591    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
592    
593    checkpoint58p_post
594    o obcs: stop if obcs is used with useCDscheme = .true.
595    o shelfice:
596     - fix a sign error so that no slip at shelfice interface works
597     - remove stop for combination non-hydrostatic code and shelfice. That does
598       not mean, that the results are correct, but at least they are numerically
599       stable
600    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
601    o added adjoint exch routined for all exch*3d* routines
602      and updated flow directives
603    
604    checkpoint58o_post
605    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
606      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
607    o change controling S/R for writing pickup file (new S/R do_write_pickup)
608      and clean-up reading/writing of pickup files.
609    o fix local version of read/write pickup (NH part) in rotating_tank/code
610    o simplify EXCH interface:
611     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
612     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
613    o added the regrid package
614    o shelfice:
615     - add a simple boundary layer scheme to reduce noise
616     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
617    
618    checkpoint58n_post
619    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
620       local variable (not in common block).
621    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
622      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
623      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
624        to work with SingleCpuIO.
625    o add "_d 0" to real constant of pkg/cfc subroutines ;
626       update exp. cfc_exemple & tutorial_cfc_offline output files.
627    o multi-threading and IO:
628      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
629        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
630      - barrier before and after reading.
631      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
632      - avoid using MDS_WRITELOCAL for LAND pkg output.
633      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
634        common-block variables ; Allows multi-threading with master-thread IO.
635    o change default MAX_NO_THREADS from 32 to 4 ;
636      and stop cleanly when MAX_NO_THREADS is too small.
637    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
638    
639    checkpoint58m_post
640    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
641       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
642    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
643       keep global_ocean.90x40x15 (for AD testing) with former secondary test
644       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
645    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
646        add MITgcm_tutorials (= code + all the tutorials)
647    o ecco, option to compute cost for total ssh (mean+anom)
648    o consistent with addition of ptracer and ssh in pkg/profiles
649    o profiles: adding ptracer and ssh
650    o testreport: change multi-test output-file name
651      (from output.txt.{name} to output.{name}.txt)
652    o profiles: now ok for mutli-tiles case
653    o seaice: add 4 parameters for different advection schemes for area,
654      (effective) seaice thickness, enthalphy, and snow height. Their default
655      is the standard parameter SEAICEadvScheme
656    o calc_gw:
657     - add cosFacU in zonal viscous flux (harmonic.visc.).
658     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
659       of tutorial_plume_on_slope.
660    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
661    o calc_gw: true flux-form, account for horizontal grid spacing.
662      update rotating_tank results, but not plume_on_slope (affected at
663      truncation level, 11 digits).
664    
665    checkpoint58l_post
666    o calc_gw:
667     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
668     - remove side-drag for now (need to fix it); update plume_on_slope results.
669     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
670    o commit code to make SST/SSS weights spatially variable
671      (based on either variable in-situ or variable initial T/S weights)
672    o pkg/ecco:
673      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
674        now based on horizontally varying weights wthetaLev, wsaltLev
675      * cost_averagesflags now returns year indices in addition to day, month
676      * sflux balance is performed on annual basis
677        (sflxumm, sfluxmm2, bal_sfluxmm)
678      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
679        including separate counting and multipliers
680    o pkg/rbcs
681      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
682    
683    checkpoint58k_post
684    o testreport:
685     - always build in dir. "build" (if not there, mkdir build instead of building
686       & running in input)
687     - run in dir run (if it exists), in build otherwise.
688     - call prepare_run (if input/prepare_run exists)
689     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
690    o pkg/exf modifications to interpolation and rotation routines for more
691       reasonable treatment of North Pole singularity: for tracers North Pole
692       value is set to northernmost zonal-mean value, for zonal velocity it is
693       set to zero, and for meridional velocity it is set to northernmost value.
694    o pkg/exf/exf_check_range.F
695     - add tile index to diagnostics and move stop statement to the very
696       end of the routine.
697    o pkg/diagnostics: (diagnostics_main_init.F)
698      define title of isomorphic variables according to the current config.
699    o pkg/thsice with pkg/seaice dynamics:
700    - fix domain of computation (interior only, required for exf) and do exchanges
701    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
702    o towards a standard way of dealing with multi-threading in MONITOR
703      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
704    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
705       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
706    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
707    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
708    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
709       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
710    o tracer advection:
711     - clean-up and simplify calc_common_factors.F
712     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
713       advection subroutine (but still not used within DST advection S/R)
714    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
715    
716    checkpoint58j_post
717    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
718      from file (collects calls previously in FORWARD_STEP)
719    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
720    o adjoint store dir. adjusted accordingly
721    o genmake2
722      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
723    
724    checkpoint58i_post
725    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
726      on wind stress (SEAICEstressFactor defaults to 1.)
727    o Total number of Timers is finite (<=40): comment out 2 non-essential one
728      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
729    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
730      on CS-grid: no longer loosing mass.
731    o exf & curvilinear-grid: no longer modify longitude xC & xG.
732    o pkg/ggl90: fix sloppy output and fix a bug
733    o pkg/seaice: added SEAICEuseEVPpickup parameter
734      - Set to false in order to start EVP solver with
735        non-EVP pickup files when using SEAICEuseEVP
736      - fix sign error in diffusion in seaice_calc_rhs
737    
738    checkpoint58h_post
739    * Modifications for bottom topography control
740      o replace hFacC by _hFacC at various places
741      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
742      o add non-self-adjoint cg2d_nsa
743      o update autodiff support routines
744      o re-initialise hfac after ctrl_depth_ini
745      o works for 5x5 box, doesnt work for global_ocean.90x40x15
746    * Adding verification for 5x5 box (4-layer) bottom topography control
747    
748    checkpoint58g_post
749    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
750       used for mean seasonal cycle, mean diurnal cycle); add an example
751       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
752    o pkg/ggl90:
753      - add parameter (minimum surface kinetic energy)
754      - fix bug (avoiding division by zero)
755    o couple pkg/thsice to pkg/seaice:
756      - modify advection in seaice to accomodate new scalar fields to be advected
757      - only muliDimAdection scheme work with seaice/thsice
758      - mapping of thsice-variables to seaice-variables, back and forth
759      - does not break the verification experiments, but does not give the
760        desired results either
761    o pkg/seaice
762      - make (default) second order advection a bit less confusing?
763    
764    checkpoint58f_post
765    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
766      to pkg/seaice):
767      - new routines thsice_map_exf and thsice_get_exf provide the interface
768      - add an additional formal parameter to thsice_solve4temp
769    o pkg/exf:
770      - add new fields wspeed, snowprecip (to be able to couple to thsice)
771      - correct Stefan-Boltzmann constant
772      - new parameter for longwave surface emittance
773      - separate some stuff from exf_bulkformulae into new routines  
774        exf_radiation, exf_wind
775      - add new parameters and constants: longwave emissivity for ocean, ice
776        and snow, evaporation parameters over ice
777      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
778        either wind from stress or stress from wind
779    o pkg/thSIce:
780    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
781    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
782       and THSICE_CALC_THICKN
783    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
784    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
785      to make debugging easier.
786    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
787    o pkg/bulk_force:
788      - clean-up comments and parameters ;
789      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
790    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
791      generate new output for test-experiment: aim.5l_cs.thSI
792    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
793      testreport accordingly
794    
795    checkpoint58e_post
796    o SEAICE_CGRID adjoint done
797    o R_STAR adjoint implemented.
798      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
799      * need to sort out init. of h0facc, etc.
800    o Make pkg/profile fully independent of ecco,cost, etc. stuff
801      to be able to use it in pure forward.
802    
803    checkpoint58d_post
804    o upgrade simple test-experiment to tutorial example:
805     step.1: duplicate the experiment and (step.2) will remove the old copy.
806      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
807      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
808      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
809      tutorial_global_oce_biogeo    <- copy of dic_example
810      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
811      tutorial_plume_on_slope       <- copy of plume_on_slope
812      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
813      tutorial_global_oce_optim     <- empty for now (David ?)
814      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
815     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
816    o correct a sign problem in cost_scat.F
817    o obcs and ptracers: fix boundary conditions for advections schemes
818      with larger stencil
819    o thsice adjoint: start
820    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
821      completeness
822    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
823      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
824    o ptracers adjoint:
825      * avoid extensive recomputatations
826      * fix missing re-init. of gptr (missed by TAF)
827    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
828      me to turn off the excessive output to STDOUT that this package produces
829    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
830      and add those terms in Vector-Invariant formulation.
831    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
832      if the control period (xx_hfluxperiod etc) is 0
833    o in profiles pkg, clean routines and fix details
834    o in ecco pkg, reading ssh data:
835      fix problem in case the model does not start at iter0=0
836    o fix mnc-pickup/restart for ptracers
837    o new package prifiles:
838      code to compute profile-based cost by Gael Forget
839      (modifs in ecco, ctrl, autodiff)
840    o Benign bug fix in initialization (spotted by M. Mazloff) of
841      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
842    
843    checkpoint58c_post
844    o adjoint: finish NLFS adjoint and provide reference output in
845      verification/global_ocean.90x40x15/results_ad_nlfs
846    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
847      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
848      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
849      with SEAICE_CGRID defined.
850    o move calendarDumps from "data" to "data.cal" and clean-up the code
851      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
852    o add useEXF & useCAL flags (for now, set in hard-coded way)
853    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
854      (were missing in NH mode, and wrong in quasihydrostatic mode).
855      waiting for Chris updated version of calc_gw to add those CALLs.
856    o fix bug in quasihydrostatic S/R ;
857      add a test for this option: global_ocean.90x40x15.qshyd
858    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
859      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
860    o add on/off flag useOffLine for package OFFLINE
861    o seaice:
862      - modify advection so that it works also on the C-grid
863      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
864        problem in multi-tile runs with C-grid
865      - add flags for clipping ice velocities and/or masking solver forcing
866      - fix drag (ocean on ice) formulation and a bug that caused noise in the
867        C-grid solver
868      - added a few comments to seaice_diffusion.F
869      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
870        are now exclusive)
871      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
872        required re-ordering the code a little:
873       + make DAIRN global variable (defined in SEAICE)
874       + move computation of the viscosities eta and zeta into a new separate
875         routine (because I need to recompute them in seaice_ocean_stress.F)
876    
877    checkpoint58b_post
878    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
879      update output.txt of exp. aim.5l_cs.thSI
880    o various mnc cleanups and improvements:
881      + shrink lookup tables by factor of ~4
882      + better error reporting when running out of lookup space
883      + able to handle longer path/file names (up to 500 chars)
884    o adjoint:
885      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
886      - TBD: "hidden" mom_vecinv recomp. in dynamics
887    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
888     (allow to differentiate between forcing components using new integer flags:
889      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
890     and add new flag to put Dissipation tendency out of Adams-Bashforth.
891    o ecco
892      - enable trend removal from SSH anomaly obs.
893    o adjoint
894      - a fix for PmEpR when #undef EXACT_CONSERV
895      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
896      - try to fix "hidden" recomp. in forward_step for NLFS
897        (NLFS seems broken sometimes after I checked it in)
898    o seaice:
899     - add c-grid version of the dynamic solver:
900       + three new routines that are the c-grid substitute lsr, dynsolver
901         and ostres
902       + put a few fields that were local to dynsolver into global common
903         blocks, so that I can move the computation of stresses etc into
904         seaice_lsr (saves coding but may break the adjoint).
905     - replace more hardwired parameters by runtime parameters
906     - add ice masks that mask the rhs of the implicit solvers where there
907       is no ice (commented out in seaice_dynsolver, because i am not sure
908       if this works properly), eventually this should replace the clipping
909       of ice velocities in seaice_dynsolver to +/-40cm/s.
910    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
911      include it only where its needed
912    o move balancing of fluxes before the call of external_forcing_surf
913    o seaice:
914      - correct units of turning angles (now they are really in degrees)
915      - move computation of GWATX/Y out of main routine into dynsolver
916      - initialize GWATX/Y in seaice_init
917    o Apply mask on Fresh-Water flux (needed for SSH forcing).
918      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
919    o seaice: add runtime flags for turning angles (default to zero)
920    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
921      and trend from exf forcing and ctrl control adjustments
922    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
923      (since checkpoint57x_post)
924    o change the default rotation period to 86164.s = the Earth rotation
925    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
926      and based on a reference stratification. Tested within hs94.cs-32x32x5.
927    o seaice advection: add code for choosing between the default (2nd order
928      central differences) and multiDim advection schemes provided by
929      pkg/generic_advdiff
930    o seaice:
931      - removed all references to SEAICE_GRID.h fields from
932        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
933        (cubed-sphere configuration will change a little)
934      - grid computations in seaice_init are obsolete now.
935      - cleaned up code a little so that is easier to read (hopefully).
936      - added new (better?) discretizations of default advection and diffusion
937        (turn on with SEAICEuseFluxForm)
938      - replace 1 in 3d global fields by kSurface in growth.F
939      
940    checkpoint58a_post
941    o seaice:
942      - bug fix in advect.F
943    o shelfice:
944      - separate shelfice load anomaly from pload (breaks with time
945        dependent forcing), => introduce constant field shelficeLoadAnomaly.
946        Its default is 0., but it may be computed more cleverly from (unknown)
947        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
948        done offline. A good approximation of the pressure load anomaly is
949        necessary to avoid large initial adjustment processes underneath
950        deep-reaching shelfice.
951      - small fix in ISOMIP shelfice_thermodynamics
952      - add more sophisticated thermodynamics of Hellmer (1989), this is
953        now the default
954      - give a few constants more intuitive names
955    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
956      if bulk formulae are used in long integration (especially EmPmR). Turn
957      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
958      if balancePrintMean, the imbalance that is substracted is printed to
959      STDOUT.
960    o fix bug (typo) in obcs_apply_eta.F
961    o add a new package shelfice which enables us to model the circulation
962      underneath shelf-ice with draughts of hundreds of meters.
963     - works
964     - to do: + include improved thermodynamics
965              + check whether kSurfC (from model/inc/SURFACE.h) can be used
966                instead of new field kTopC
967              + can we use topoFile, Ro_surf and existing code in ini_depth.F
968                instead of new field R_shelfIce and new code in ini_depth.F
969                and ini_mask_etc.F?
970              + adjust vertical mixing schemes?
971    o seaice pkg:
972     - add a cpp-flag to include a simple formula for a salinity dependent
973       freezing point of sea water at the surface
974     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
975       meridional stresses are now different (and hopefully correct)
976    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
977       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
978       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
979    o pkg/diagnostics: add options and parameters for regional-statistics
980       diagnostics ; define regions by reading a region-mask from a file
981       (might add other options later)
982    o pkg/bulk_force:
983     - add option and parameters to use AIM surface-flux formulae.
984     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
985       others forcing fields (defined in PARM05, parameter file "data") are loaded
986       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
987     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
988     - use the right EXCH call for uwind,vwind (to work on CS-grid).
989     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
990       and parameters (note: calcWindStress replaces .NOT.readwindstress).
991     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
992    
993    checkpoint58
994    o add "--embed-source" option to genmake2 which, when the supporting
995      tools can be compiled (as determined by genmake2) will turn on the
996      embed_files package which then embeds the entire MITgcm source code
997      (*.[fFhc] + Makefile) used for the build within the executable
998      - requested by CNH but off by default
999      - adds a paltry <9MB to the mitgcmuv executable in most cases
1000      - only writes the output when useEMBEDSRC in eedata is true
1001    o clean up 3-dim. relaxation codes:
1002      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1003      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1004      * Thanks to Tom Haine for testing!
1005    
1006    checkpoint57z_post
1007    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1008      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1009    o fix the pickup behavior for obcs in combination with ptracers
1010    o fix a bug in ptracers_external_fields_load
1011    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1012      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1013    o transfered surface NH pressure to eta field (if exactConserv).
1014    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1015         and update lab_sea output.txt file.
1016    o completing 3-dim. relaxation code: additional term
1017         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1018      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1019      * At compile time, in "EXF_OPTIONS.h" set
1020          #define  ALLOW_CLIMTEMP_RELAXATION
1021          #define  ALLOW_CLIMSALT_RELAXATION
1022      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1023          tauThetaClimRelax3Dim = 15552000.0,
1024          tauSaltClimRelax3Dim  = 15552000.0,
1025      * 3 cases:
1026          1) Use a constant-in-time 3-dim. field
1027          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1028          3) Real-time relax. to time-evolving prescribed field
1029    o Adding Laplacian-type smoothness constraint on
1030      initial and boundary (forcing) controls (ic, bc)
1031      * enable at compile-time via
1032        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1033      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1034      * Absolute scale somewhat unclear so far
1035      * no area weighting was included since no other cost term does so far
1036    
1037    checkpoint57y_post
1038    First step for a NLFS adjoint
1039    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1040    o new init. routines for calc_r_star, calc_surf_dr
1041    o still need to deal with ini_masks_etc
1042    o testreport seemed happy
1043    checkpoint57y_pre
1044    
1045    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1046    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1047    o add new offset feature to offline pkg (plus minor cleanup)
1048    o cfc fixes for final year of integration
1049    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1050      be in GCHEM_OPTIONS).
1051    
1052    checkpoint57x_post
1053    o fix testreport Pb in multiple test experiment.
1054    o cleanup our namelist syntax in verification:
1055      - make it more F95 standards compliant (some work still needed)
1056      - allows the vast majority of our tests to work with gfortran
1057    o Non-Hydrostatic:
1058     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1059     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1060    o Allow to apply AB on T,S rather than on AB(gT,gS):
1061     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1062     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1063       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1064     - need a "clever" read_pickup to restart from the other AB formulation
1065    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1066    o remove some unused variables (reduces number of compiler warnings)
1067    o adjoint
1068      * Disable useVariableViscosity for adjoint for time being
1069        (there are a number of extensive recomputations)
1070      * Initialize certain variables needed for adjoint
1071    
1072    checkpoint57w_post
1073    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1074                 fix the singleCpuIO RS version of MDSWRITEFIELD
1075       and add a WARNING if using globalFiles=T with multi-processors.
1076    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1077      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1078    o tracer advection scheme:
1079      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1080       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1081       was not very convenient).
1082      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1083       (further tests needed for the implicit DST & Flux-Limiter schemes).
1084    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1085      and sRef for convenience, handy, when you want to initialize
1086      ptracers in a large domain with a constant non-zero value. Also,
1087      untangle ptracers_init.F a little.
1088    
1089    checkpoint57v_post
1090    o change dome exp. to use variable viscosity in side-drag terms.
1091    o remove all the files from the cfc_offline test since they are now
1092      incorporated into tutorial_cfc_offline which has been producing
1093      identical results for a few days of testing
1094    o add new parameter: sideDragFactor to enable half-slip-side BC
1095      and change side-drag S/R to use viscosity from mom_calc_visc
1096      (can switch back by setting sideDragFactor=0.); affects results at
1097      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1098       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1099    o vorticity & strain are now computed without masking, to account for
1100      no-slip-side BC in variable viscosity calculation ; mask is applied
1101      anyway later on, before computing advection/coriolis terms.
1102    o modify exp4 to test new obcs support for reading from external files
1103      and for passive tracers
1104    o fix behavior of ptracers_monitor when monitor output is written to a
1105      netcdf-file; still not independent of monitor.F (writes in the same
1106      file).
1107    o change default value of tRef (put a uniform, meaningful value for ocean
1108      & atmos) and initialize sRef (was missing, as Martin mentioned).
1109    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1110      to be proportional to enstrophy dissipation length.  Thus,
1111       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1112      This is now consistent with Smagorinsky and with the manual.
1113    
1114    checkpoint57u_post
1115    o OBCS and PTRACERS: add open boundary support for passive tracers
1116      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1117        OB-values from file; this is not different from the way theta and salinity
1118        are treated
1119      - however, Orlanski-radiation conditions are not supported, and the model
1120        will stop if you use pTracers and Orlanski at the same time.
1121      - beefed up the rountine obcs_external_fields_load: now only those open
1122        boundary values are overwritten with values from files for which there
1123        are really files, otherwise the OB-fields remain untouched. This makes
1124        it possible to use different OBs at different ends of the domain (as
1125        with EXF)
1126    o reduce number of exch calls in shap_filt (s2).
1127    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1128      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1129    
1130    checkpoint57t_post
1131    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1132    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1133      same truncation, independent of the face number: affects affects several
1134      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1135    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1136      note that biharmonic viscosity + no-slip was not tested in any experiment.
1137    o fix bug in non-linear free-surf side-drag ; generate new output for
1138      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1139    o make mnc honor the writeBinaryPrec flag for most kinds of output
1140    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1141    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1142      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1143    o add brackets in multi-terms sum to get same truncation, independent of
1144      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1145      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1146    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1147      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1148      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1149      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1150      Suggested values of viscosity parameters found in mom_calc_visc.
1151      Many new viscosity diagnostics available.
1152    
1153    checkpoint57s_post
1154    o Add clearing-house for viscosity calculations, mom_calc_visc and
1155      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1156      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1157      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1158      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1159      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1160      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1161      ViscAhStrain and viscAhTension are now retired.
1162    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1163    o In response to JMC's bug report, genmake2 now ignores any soft-links
1164      that it finds in the *current* directory when searching for files.
1165      Soft-links found in any other source directories will still work as
1166      they did before.
1167    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1168      a C routine to unlimit the stack size
1169    o mnc-ify pkg/aim snapshot vars
1170    o mnc-ify pkg/land as requested by Daniel
1171    o various changes to mnc including:
1172      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1173      - output can now be grouped so that all files within a group
1174          change the ITER portion of their names in lock-step together
1175      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1176          and works with both EXCH1 and EXCH2 (but needs more testing)
1177      - writing works for all verification test cases w/ g77 on Linux
1178    
1179    checkpoint57r_post
1180    o make MNC variable initialization happen earlier
1181    o add diagnostics for (almost) each term of the momentum Eq.
1182    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1183    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1184    o remove MINIMAL_TAVE_OUTPUT option ;
1185      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1186    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1187      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1188    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1189    o add time-dependent SST, SSS control
1190    o cost terms in ecco/ modularized (new cost_generic.F)
1191    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1192    o new infrastructure for seaice model vs. obs misfits in seaice/
1193      * driver from the_main_loop.F is seaice_cost_driver.F
1194      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1195      * gradient check in Exp. 6a of natl_box_adjoint/
1196    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1197      (see README file)
1198    
1199    checkpoint57q_post
1200    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1201    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1202      - bug was reported by Jean-Michel and Ian Fenty
1203    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1204      update exp. cpl_aim+ocn output.
1205    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1206      Needed for high-res. runs with large global files
1207      to be able to limit tapelev size
1208    o Changed some tests for adjoint:
1209      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1210      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1211      * global_ocean.90x40x15/ back to default 3-level checkpointing
1212    o Modifications to enable scripted COMMON to MODULE conversion
1213      * verification/OpenAD/code/ has necessary scripts and description;
1214      * converts, compiles and runs successfully;
1215    
1216    checkpoint57p_post
1217    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1218    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1219      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1220    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1221    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1222      (was already the case for dissipation with mom_vecinv,
1223       and also the case for grad.PhiHyd when staggered-timeStep)
1224      This will allow to put dissipation out-off the AB time-stepping.
1225     Unfortunately, affects truncation error. Update output of exp. that "fails"
1226      (cg2d matching number) and leave the others for later: front_relax(10),
1227      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1228      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1229    
1230    checkpoint57o_post
1231    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1232      (2) its ready to be documented during the 20050801 DocFest
1233    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1234      for ideal_2D_oce and lab_sea on linux_ia32_g77
1235    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1236      in global1x1_tot/code_seaice_adj to access indices 32, 33
1237      (worth another tag)
1238    
1239    checkpoint57n_post
1240    o adding precip control xx_precip 32
1241    o adding swflux control xx_swflux 33
1242    o Replacing 10 forcing penalty cost routines by 1 generic.
1243    o Implementing partitioning in time-mean and variable adjustment
1244      for atmos. state.
1245    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1246    o in natl_box_adjoint:
1247      * updated exp 1 to 10
1248        (but does not have time-mean vs. variable split results yet)
1249    o updated global1x1/*_seaice_adj/
1250      to incorporate latest changes
1251    o enable useSingleCpuIO for mdsio vector routines
1252      (applies in particular to tapelev I/O)
1253    o removed inefficient K-loop in all active_file*control*.F
1254    
1255    checkpoint57m_post
1256    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1257      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1258    o pkg/exch2: filling of face-corner halo regions is optional
1259      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1260    
1261    checkpoint57l_post
1262     tag before updating tutorials (pre-release-2)
1263    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1264       for output and interpolation of input fields onto model grid)
1265    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1266       Affects results of exp. rotating_tank ; update output.txt.
1267    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1268          and taking the square quantity and/or using a fraction-weight field.
1269    o fix aim_diagnostics_init.F mate numbers.
1270    o add mnc output capability to diagnostics/diagstat and update
1271      our cvsignore files for the ACSII output generated
1272    
1273    checkpoint57k_post
1274    o lab_sea now uses diagnostics package and provides a suite of
1275      new EXF diagnostics output.
1276    
1277    checkpoint57j_post
1278    o exf
1279      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1280        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1281        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1282      * extended diagnostics output
1283        - now includes all EXF variables
1284        - hs, hl moved to common block
1285        - separate S/R for diagnostics, called after ctrl vector is added
1286        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1287        - EXFqnet contains true Qnet (i.e. includes qsw)
1288      * updated verif. lab_sea, global_with_exf
1289      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1290        to ensure that diagnostics sees a true EXFqnet
1291    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1292    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1293      several times with different frequencies.
1294    o mnc-ify the thsice package as requested by Daniel Enderton
1295      - the monitor--MNC output needs work
1296      - many attributes need to be added (most are currently blank)
1297    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1298      - many attributes need to be added (most are currently blank)
1299    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1300    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1301    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1302      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1303         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1304    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1305     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1306    
1307    checkpoint57i_post
1308    o Diagnostics package was changed: diagnostic allocation is now deactivated
1309      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1310    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1311      add 1rst Order upwind vertical Shear.
1312    o add a quick fix for A/B checkpointing in OFFLINE mode
1313    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1314      end-run around the C/Fortran linking horror in eesup/src/timers.F
1315    o added pkg/runclock: allows user to terminate run based on wall clock
1316    o added non-hydrostatic scaling parameter: nh_am2
1317    o pkg/my82: futile attempt to make results compiler-independent by adding
1318      some "_d 0", etc. no effect.
1319    o for mnc output, fill the 'T' coordinate var with myTime and create a
1320      separate 'iter' variable for iteration count
1321    o pkg/diagnostics:
1322      add new capability: output of Global/Regional & per-level statistics ;
1323      tested against monitor output (including land & thSIce) on various exp.
1324    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1325    
1326    checkpoint57h_done
1327      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1328      data.diagnostics, data.gchem, data.ptracers) is done.
1329    
1330    o pkg/diagnostics: prepare for Global/Regional statistics.
1331      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1332    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1333      and rename it: DIFFERENT_MULTIPLE
1334    
1335    checkpoint57h_post
1336    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1337    o pkg/diagnostics: change output frequency, now in seconds (instead
1338      of Nb of iterations). This requires to change data.diagnostics.
1339    checkpoint57h_pre
1340    
1341    o in mnc, let the user create the output dir if both mnc_outdir_date
1342      and mnc_outdir_num are false
1343    o add fflags() to pkg/diagnostics which allows one to specify, on a
1344      per-file basis, the file precision [default behavior is unchanged]
1345    o added diagnostics to pkg/kpp, including computation of mixed layer
1346      depth based on a temperature/density criterion
1347    o updated verification/natl_box to test the new pkg/kpp diagnostics
1348    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1349    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1350    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1351      not mnc -- this mistake was found by JMC and is now corrected
1352    
1353    checkpoint57g_post
1354    o add Adams-Bashforth 3rd Order time stepping:
1355      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1356      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1357    checkpoint57g_pre
1358    
1359    o make lambda[Theta,Salt]ClimRelax spatially varying
1360      (default remains spatially uniform constant based on tau)
1361    o added new control variables
1362      * init. uVel, vVel, etanN
1363      * lambda[Theta,Salt]ClimRelax
1364    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1365      (suggested by G. Forget)
1366    
1367    checkpoint57f_post
1368    o add parameter "baseTime" = model base time = time at iteration zero
1369      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1370      account for baseTime shift
1371    o move Coriolis arrays from PARAMS.h to GRID.h
1372    checkpoint57f_pre
1373    
1374    o mnc-ifying the seaice package
1375    o introduced an alternative length scale calculation for use in the limiting
1376      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1377    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1378    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1379      as well as grad(vort3).  Made it compatible with both approximate form
1380      for the cubed sphere and full form of these gradients.  Added flag
1381      useFullLeith to select between approximate and full form.  
1382    o add "d0" in getcon.F to reduce differences between compilers/platforms
1383      update output.txt of exp. fizhi-gridalt-hs
1384    o change port_rand funtion to allow to set the seed.
1385    o fix obscure MNC bug involving conversion between reals and integers
1386      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1387        new version is now more standards-compliant
1388    o adjoint-related modifications
1389      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1390      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1391      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1392    
1393    checkpoint57e_post
1394    o Adding eddy stress controls a la Ferreira et al.
1395    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1396    
1397    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1398      update output.txt of exp. fizhi-gridalt-hs
1399    o add more "Z" dimensions and associated coordinate vars to MNC
1400    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1401    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1402      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1403      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1404      months and years.  Requires pkg/cal.
1405    o diagnostics: add pickup functionality
1406      - off by default for backwards compatibility
1407      - current version only uses MDSIO -- MNC will be added
1408    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1409    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1410    
1411    checkpoint57d_post
1412    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1413    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1414      output from the diagnostics package
1415    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1416    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1417      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1418    o add coordinate variables to the MNC output from the diagnostics package
1419    o change MNC-flags default value: true when useMNC=TRUE
1420    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1421      the ability (off by default) to read the grid information using MNC
1422    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1423    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1424    o do snap-shot diagnostics at the middle of the time-interval (instead of
1425      at the end).
1426    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1427      new test for AIM with thSIce + slab-ocean
1428    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1429    o move state variable diagnostics to the beginning of the time step ;
1430      (note: still needs some work specially for snap-shot diagnostics)
1431      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1432    
1433    checkpoint57c_post
1434    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1435    o generate new output.txt files on faulks with g77 & the new -ieee option
1436    checkpoint57c_pre
1437    
1438    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1439      update output.txt of exp. global_ocean.90x40x15
1440    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1441      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1442    o add saltFlux(+File) forcing capability with periodicExternalForcing
1443    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1444    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1445    o improvements for the MNC output from DIAGNOSTICS:
1446      - correct handling of the unlimitied dimension
1447      - all dims now have associated coordinate variables
1448      - variables located at U, V, and Corner ("Z") points are now written
1449        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1450        *all* data points are output
1451    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1452    o added pkg/seaice/seaice_monitor.F
1453    o mdsio_readfield.F can now read files visible only to master MPI process.
1454    o pkg/seaice: some test code for ice-modified ocean stress
1455    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1456      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1457      spurious negative numbers for precipitation and humidity.  Will cause
1458      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1459    o pkg/ctrl/
1460      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1461        May be enabled via doPackDiag
1462      *  introduce z-scaling of
1463         + gradient (doZscalePack) and
1464         + control (doZscaleUnpack)
1465    o pkg/mdsio/
1466      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1467      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1468    
1469    checkpoint57b_post
1470    o simplify options in diagnostics_fill arguments (remove weird combinations)
1471    o fix MNC coordinate variables so that they now contain per-face index
1472      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1473      general, EXCH2 grids are only aligned to a "local" coordinate system
1474    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1475    o Implement instantaneous output within pkg diagnostics:
1476      setting a negative frequency in data.diagnostics produces
1477     "snap-shot" output (as opposed to time-average if freq > 0)
1478    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1479      NOTE: change ptracer diagnostics name: use 2 characters to work with
1480            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1481    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1482      becomes the coordinate variable for the 'T' dimension
1483    o add CF-style coordinate variables to MNC
1484      - just a first cut:  numbers are meaningless on the cubesphere and
1485        missing along the T axis but otherwise it works!
1486    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1487    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1488    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1489      this is based directly on what the model compute, so that the content of
1490      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1491    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1492    o clean up build options files for SunOS, in particular
1493      - remove -traditional from xmakedepend
1494      - change -xarch=v9 to -xarch=native for f77
1495      - restore use of make (not gmake)
1496      - add CC=gcc if using g77
1497    o changes per discussion of AM, JMC, & EH3 today:
1498      - move redundant "grid" variables out of "state" -- in preparation of
1499        creating proper CF-style coordinate variables and in recognition
1500        that any/all grid variables can be easily copied (eg. w/NCO) from
1501        the grid files into any of the other NetCDF files
1502      - *always* output grid variables with MDSIO (this will eventually be
1503        changed)
1504      - output MNC grid file if useMNC is true
1505    o every instance of _END_MASTER() has been found and replaced with
1506      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1507      preprocessors
1508    o re-arrange diagnostics pkg initialisation:
1509     - allow each package to extend the available diagnostics list
1510     - add some checking and fix small problems (multi-threaded, ...)
1511     - new S/R diagnostics_fill (replace fill_diagnostics):
1512       look through the short list of active diag. (instead of the long list)
1513       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1514    
1515    checkpoint57a_post
1516    o this set of changes restores TAMC compatibility
1517      tested for global_ocean.90x40x15 adjoint on trough
1518      (what a pain)
1519    
1520    checkpoint57a_pre
1521    o some modifs in tools/build_options for sunos
1522    o call ctrl_pack for ctrl at end for optimcycle=0
1523    
1524    checkpoint57
1525    o add horizontal bi-harmonic viscosity for vertical velocity
1526      - new parameter viscA4W (defaults to viscA4)
1527      - affects only non-hydrostatic code
1528      - to be done: no-slip lateral boundary conditions
1529    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1530    o implement Implicit Vertical advection for pTracers
1531    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1532      (implemented also for implicit vertical diffusion & advection)
1533    o OBCS: extend application of tracer open boundary conditions
1534      to a strip beyond the boundary of width Olx/Oly
1535    o add call monitor to TAF set of required calls (flow directives)
1536      and include in natl_box_adjoint
1537    o untangle a few ifdefs related to cost, ctrl, autodiff
1538      untangel a few ALLOW_ECCO_OPTIMIZATION
1539    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1540      (theta2, salt2 in ecco_cost_weights)
1541    
1542    checkpoint56c_post
1543    o OBCS as control variables
1544      - update ctrl_ad_diff.list, obcs_ad_diff.list
1545      - remove balance of obcs controls from default
1546      - fix index bug nobcs in ctrl_init
1547      - fix dummy fields filen in ctrl_pack
1548      - add dummy weights for obcs
1549    o lsopt: comment out fort.94 output
1550    o optim:
1551      - remove unnecessary header files
1552      - adjusted namelists
1553      - add xerbla.F to Makefile
1554    o exf:
1555      - multiple modifications of exf_check_range
1556      - unit change in exf_init_runoff from [m/year] to [m/s]
1557    o mdsio:
1558      - i/o-vector change debugLevel from debLevA to debLevB
1559    
1560    checkpoint56b_post
1561    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1562      is called from DO_THE_MODEL_IO
1563      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1564      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1565      - clean up PTRACERS_WRITE_TIMEAVE a little
1566    o add another verification experiment that tests both the cfc-pkg and
1567      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1568      reactive tendencies treated inline with regular timestepping
1569    o testreport previously did a lousy job of comparing small numbers, so
1570      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1571      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1572      testreport.
1573    o ptracers_monitor: bug fix for MPI
1574    
1575    checkpoint56a_post
1576    o GCHEM: finish reorganizating the package
1577      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1578        (introduces another 3D-array for each passive tracer, but only if
1579        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1580        gchemTendency is not needed because the timestep is done separately)
1581      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1582      - GCHEM is now---more or less cleanly---separate from PTRACERS
1583      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1584        so clear to me how that should be done in a general way.
1585    o CFC: improve formatting of output in CFC_ATMOS
1586    o PTRACERS:
1587      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1588        that ALL experiments with ptracers enable can be checked. This makes
1589        GCHEM_MONITOR obsolete.
1590      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1591        monitorFreq
1592      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1593    o add PTRACERS (PTR0[1-5]) to testreport output
1594    o exf_check_range:
1595      * default changed to .TRUE.
1596      * will check values for niter0 if debLevA, every timestep if debLevB
1597      * STOP in exf_check_range if 'out of range'
1598      * range chosen generous to allow for potential extema
1599      TBD: a version with stricter range
1600           permitted range would be runtime parameters
1601  o GMredi:  o GMredi:
1602    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1603    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 1606  o GCHEM:
1606    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
1607      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1608    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1609      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1610        this flag is now only visible within GCHEM-pkg routines.
1611      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1612        be replaced by a 3D array that is computed before thermodynamics; for
1613        this, the tracer ID iTracer had to be included into the parameter list
1614        of ptracers_forcing
1615      - set up forward_step to call gchem_forcing, that will replace
1616        gchem_forcing_int in ptracers_forcing
1617      - cleaning up
1618  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
1619    
1620  checkpoint56  checkpoint56

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