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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.953 by jmc, Tue Feb 5 15:49:01 2008 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 pkg/diagnostics: for large number of diagnostics, store diagnostic mate
8      number in dedicate array "hdiag":
9      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
10        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
11      - many small changes (integer format) for large number of diagnostics
12      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
13        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
14    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
15      usingSphericalGrid, this allows to define the rotated grid coordinates
16      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
17      geographical coordinates according to the inverse of the rotation defined
18      by the Euler angles, so that Coriolis parameter and online-interpolation by
19      exf works with the geographical coordinates on XC/YC/XG/YG.
20      Naturally, this feature does not work with all packages, so some
21      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
22      profiles), because there the coordinates are assumed to be regular
23      spherical grid coordinates.
24    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
25      - introduce isopycnal diffusion coefficient control.
26    o tools/adjoint_options:
27      - additional control vector components.
28    o pkg/mnc: have mnc create marginally meaning full coordinate variables
29      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
30    o pkg/mypackage:
31      - add example of read/write pickup for state-var ;
32      - add entry points to the main code for state-vars diags & write-pickup.
33    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
34      transitions for useExfYearlyFields
35      - add new subroutine that determines the file to read from for
36        use*YearlyFields = .TRUE. and .FALSE.
37      - add a verification experiment to global_with_exf that tests
38        useExfYearlyFields with USE_EXF_INTERPOLATION defined
39    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
40      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
41      subroutines (which could be generated from a template, because they are
42      almost identical), for now they are included in obcs_prescribe_read.F for
43      simplicity
44    o pkg/exf:
45      - add a little more diagnostic to exf_interp_read (in analogy to
46        mds_read_field, can be turned off with debugLevel < debugLevA=1)
47      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
48        ugly but fast by unrolling short inner loops, inserting a unroll=8
49        directive in routine lagran, and splitting a loop and making do while the
50        outermost loop (the latter requires the intoduction of index arrays)
51    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
52    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
53      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
54    o verification/seaice_obcs: updated for restart test and latest options
55    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
56      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
57      for now this is only available for the C-grid code and also within
58      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
59    
60    checkpoint59m
61    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
62      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
63    o gad_som : fix flux output (& diagnostics) to have same units as other  
64      advection scheme fluxes (was previously multiplied by deltaT).  
65    o added verification/seaice_obcs both to test seaice open boundaries
66      and to provide an example matlab scrpt for generating them
67    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
68    o pkg/salt_plume: clean up salt_plume_frac.F to
69      remove redundancy in PlumeMethod 1 and 4
70    o pkg/kpp: added saltplume diagnostics
71    o pkg/obcs and pkg/seaice:
72      - do not set uice and vice to zero when OB*icefile are unspecified
73      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
74      - moved seaice tracer obcs after call to seaice_growth
75    o pkg/salt_plume: added various options for salt plume depth
76      criterion and for vertical distribution of the salt
77    
78    checkpoint59l
79    o pkg/ptracers: new version of ptracers pickup:
80      read meta file and write only fields which are needed to restart.
81      ( same logic as main pickup file ; also using pickupStrictlyMatch )
82    o pkg/seaice:
83      - add timescale for melting due to warm mixed layer as a means of
84        setting SEAICE_availHeatFrac more conveniently
85      - add a CPP-flag/runtime parameter check for flooding algorithm
86      - reformulated availHeat in seaice_growth.F to be independent of AREA
87    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
88      unit changes
89    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
90    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
91      SX vector computer.
92    o pkg/seaice:
93      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
94        seaice forcing fields can now be read only through pkg/exf
95      - removed some unused halos
96    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
97    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
98      or U/VICE from U/VWIND before computing U/VSTRESS
99    
100    checkpoint59k
101    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
102      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
103    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
104      all experiments pass when compile with un-initialised var. checking option.
105    o added pkg/salt_plume
106    o script to test restart (for now, in MITgcm_contrib/jmc_script)
107    o pkg/seaice: new read/write pickup version.
108      read meta file and write only fields which are needed to restart.
109      ( same logic as main pickup file ; also using pickupStrictlyMatch )
110    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
111    o lab_sea.hb87: modify the domain & update output.hb87.txt :
112      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
113      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
114      process. Fixed here by closing the domain at the Northern boundary.
115    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
116    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
117      a set of consecutive levels in/from a 3-D array.
118    o pkg/ptracers:
119      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
120      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
121    
122    checkpoint59j
123    o in pkgs: dic, obcs, offline, rbcs:
124      standard way to compute coeff. for time interpolation between 2 time reccords
125      which retains full precision (& make results less dependent on compiler).
126      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
127    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
128      packages instead of reading ice cover and wind speed separately
129    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
130     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
131      to allow to compile customized code before the update)
132    o cleaning-up:
133      - fix CPP instruction syntax in pkg/obcs
134      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
135        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
136      - fix some threads issue in IO parts.
137    o pkg/dic:
138      - add tons of "_d 0" (--> much better testreports !)
139       and then update outputs of tutorial_global_oce_biogeo
140    o pkg/mom_fluxform:
141      add a special version of momentum advection intended to conserve momentum
142      next to a bathymetry step or a coastline edge. (default = off = #undef)
143    o new read/write pickup version:
144      - for now, only implemented for main (mdsio) pickup file.
145      - write out only what is needed to restart; merge pickup_nh , pickup_ph
146        and main pickup together.
147      - read meta file; read only what is needed to restart; stop if a field
148        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
149        if it make sense (even if the restart is not perfect).
150      - if no meta file, assume that pickup to read corresponds exactly to
151        a pickup that would currently be written.
152      - read pickup written in the old format (until checkpoint59i) if it
153        recognizes an old meta file (no field-list).
154      - add a meta file in exp. which starts from a pickup: 2 cases:
155        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
156         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
157        b) a meta file describing the content of the associated pickup file
158         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
159    o pkg/mdsio & pkg/rw:
160      - new routine to read a meta file ; new set of routine to read
161        Multiple-fields file (with meta file).
162    o added open boundary conditions capability for seaice
163        HSNOW, HSALT, UICE, and VICE
164    
165    checkpoint59i
166    o adjoint:
167      * fix multiDimAdvection adjoint
168        (partial recomputation problem by TAF for fVerT(:,:,kDown)
169        and comlev1 size definition (maxpass vs. max. number of tracers)
170      * verification/global_ocean.90x45x15 adjoint now tests
171        NLFS and multiDimAdvection using DST3 (=30)
172      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
173    o pkg/kpp: add "_d 0" to real constant (if missing);
174      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
175      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
176    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
177      for internal parameters related to restart process (formerly from PARAMS.h)
178      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
179    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
180      as argument. (only atm2d & obcs write_pickup have not yet been updated)
181    o pkg/monitor:
182      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
183      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
184      - account for deep Atmosphere factor and density factor (anelastic)
185    o added open boundary conditions capability for seaice HEFF and AREA
186    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
187      thermodynamics
188      - requires a little reorganization, which affects the testreport results
189        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
190        so that now the conservative form is tested
191      - add a few comments
192    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
193    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
194    o add new diagnostics to seaice: advective, diffusive fluxes (only for
195      multidim-advection, for scheme 2 they are not filled) and transports,
196      thermodynamic growth rates
197    o change units of EmPmR (inside the code, + within coupling interface)
198      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
199      Affects results @ truncation level (cg2d match) and update output of
200       experiments: lab_sea(6), global_ocean.90x40x15(10),
201      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
202      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
203      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
204      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
205    
206    checkpoint59h
207    o pkg/exf:
208      - improve vectorization by moving if-statement out of loops in
209        exf_mapfields, exf_radiation
210      - exf_bulkformulae.F: introduce 2D fields and vectorize code
211    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
212    o testreport:
213      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
214        monitor & update offline_exf_seaice exp. output.
215      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
216    o pkg/seaice:
217      - bug fix in the evp solver: boundary conditions were affected be
218        masking of zMax/zMin (changes results)
219      - minor bug fix in boundary conditions in seaice_calc_strainrates
220        (changes results for no_slip)
221      - seaice_lsr.F: make interpolation of eta dependent on boundaries
222      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
223      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
224        stress formulation and no-slip boundary conditions
225    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
226      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
227    o pkg/seaice: a first HSALT time stepping equation has been checked in
228    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
229      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
230      without requiring DO-IF statements
231    o pkg/thsice:
232      use continuous power-law function for partition of energy between lateral
233      melting/freezing and thinning/thickening ; old code using step function
234      still available with #undef THSICE_FRACEN_POWERLAW
235      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
236    o testreport: change AD testing : check against results/output_adm.txt
237      using same scripts as for forward test.
238    
239    checkpoint59g
240    o adjoint testing: in preparation for changing testreport:
241      - output format: cost and grad written on separated lines
242      - ad output results in directory "results" (instead of "results_ad")
243    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
244    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
245    o pkg/ecco: allow user defined cost function contributions
246    o testreport:
247      Allow to choose (per experiment) the list of tested output variables
248       and the main variable (used to issue a pass/FAIL ) ;
249      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
250      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
251      Also modify printing of summary:
252       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
253       b) echo the list of tested variables in the individual summary.txt of
254          each experiment.
255    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
256      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
257      (but still depend on the tile decompostion of the domain).
258    o pkg/seaice: change a discretization detail to make the B-grid code
259      "more symmetric". This change is likely to remove all "ridges/leads" that
260      where quasi-aligned with the grid in B-grid solutions. It may also be
261      the solution to the stress coupling issues with the B-grid.
262    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
263      remove .cvsignore from input dir. (since testreport no longer run here).
264    o pkg/thsice:
265     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
266     - fix reshaping of sea-ice just after advection:
267       melt all the ice only if ice-volume is too small.
268     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
269       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
270     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
271    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
272      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
273    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
274      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
275      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
276      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
277      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
278      -> update output.txt
279    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
280     this affects truncation error: -> update output.txt of exp:
281      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
282      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
283    
284    checkpoint59f
285    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
286    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
287      a bounded range (in forward mode)
288    o pkg/ecco, ctrl, autodiff and mom_common:
289     internal parameter controls, completements of implementations
290    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
291    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
292      (not seem any difference in testing results).
293    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
294       at face corners.
295    o pkg/generic_advdiff:
296     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
297      loop range indices for computing vertical advection tendency
298      and do the calculation in the interior only (no overlap) ;
299      for now, only implemented for SOM advection (to save CPU time).
300     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
301    o exch2 adjoint
302      First set of changes:
303      - add exch2 hand-written adjoint templates
304      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
305        This will require cleanup in pkg/autodiff/*.F
306        (changed routines currently kept separate in verif. code/)
307      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
308        that used to hide exch2 or cubed-sphere specific code
309        (commented via 'cph-exch2')
310    o pkg/seaice
311      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
312    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
313       output of global_ocean.cs32x15.thsice .
314    
315    checkpoint59e
316    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
317      for B-grid vector (not yet tested) and C-grid vector (<- only used
318      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
319    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
320      (#ifdef ALLOW_SALT_PLUME)
321    o gather_2d/scatter_2d: removed halo regions
322    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
323      scheme and the corresponding test case (under front_relax dir). For now,
324      only available with Skew-flux form and not yet tested in realistic set-up.
325      adjoint: store directives updated, but gradient checks deteriorated,
326      so maybe GM/Redi adjoint is now broken.
327    o seaice adjoint
328      * add AREA, HEFF, HSNOW as control variable
329        (should not change lab_sea results)
330      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
331    o pkg/seaice:
332      * added computation of saltFlux in seaice_growth;
333        For time being, sea ice salinity is assumed constant
334        contribution of snow flooding to freshening of sea ice is neglected.
335        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
336        defaults to 0.0 in order to maintain backward compatibility.
337        Typical values for SEAICE_salinity are 4 to 10 g/kg.
338      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
339      * added SEAICE_availHeatFrac, which specifies fraction of surface level
340        heat content used to melt or grow ice
341      * commented out cap of HICE: it helps keep ice thinner
342      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
343      * applied OBCS T/S mask to HEFFM sea ice mask
344    
345    checkpoint59d
346    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
347     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
348     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
349    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
350     and change default value of parameter "GM_Small_Number";
351     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
352       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
353       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
354    o pkg/ecco: cost function when applying pkg/smooth to controls
355    o pkg/ctrl: add forcingPrecond run time parameter
356    o pkg/seaice:
357     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
358     - fix bug in metric terms of u-equation in LSR solver (implicit part),
359       changes verification/lab_sea
360     - rearrange implicit part of u-equation in LSR solver to make it easier to
361       read, understand, and debug. This causes changes at the truncation level.
362     - fix (serious) bug in the boundary conditions (sign error in the implicit
363       part) of the LSR solver. Changes all LSR results.
364     - fixed problem with HSNOW initialization to avoid thick snow when AREA
365       is initilized with small values - does not change lab_sea results.
366     - added HsnowFile initialization capability
367    o pkg/smooth: addition to model/src and pkg/ctrl so allow
368     initialization of pkg/smooth and application to control vector
369    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
370    o dependencies: pkg/profiles requires pkg/cal
371    o pkg/profiles:
372     - added option ALLOW_PROFILES_GENERICGRID
373         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
374         that interpolation information (grid points and coefficients) is provided
375         within the netcdf input files.
376         -> sample matlab scripts can be found in MITgcm_contrib/gael
377         that allow you to prepare netcdf input files.
378     - also modified: cleaner include statements, cleaner error print statements,
379       cleaner stops when error, and more tests of the netcdf input files consistency.
380    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
381    o pkg/seaice:
382     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
383       requires a new routine: seaice_diagnostics_fill.F
384     - make sure that seaice does not move if not forced (pressure replacement
385       method, Hibler and Ip, 1995), changes results
386     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
387     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
388       It is turned off by default (=-1.), because it changes the results.
389     - make it possible to read AREA from a file, too.
390    
391    checkpoint59c
392    o add S/R and diagnostics for oceanic mixed-layer depth
393    o move GMRedi call after all vertical mixing schemes (including KPP)
394    o pkg/thsice:
395     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
396      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
397    o pkg/obcs:
398     - bug fix for balance code
399    o pkg/seaice:
400      - allow values of SEAICE_elasticParm > 1
401      - add new parameter SEAICE_evpTauRelax as an alternative
402        to SEAICE_elasticParm
403      - make lsr boundary conditions free slip (by default), changes result
404      - add code for no slip boundary conditions for lsr
405      - set minimum of zeta to zero (and not 4e8) (changes results)
406      - add a cap on AREA after advecting AREA if seaice_growth is not called
407    o change calculation of Visbeck K:
408      - no longer depend on tapering scheme; instead, compute slope (limited
409        by GM_maxSlope). this is equivalent to what was comuted before with
410        clipping or linear tappering.
411      - fix vertical averaging (wrong by 1/2 level)
412      - leave the old version (but will not be maintained) within
413        #ifdef OLD_VISBECK_CALC / #endif
414      - update output of exp. ideal_2D_oce
415    o change error catch in calc_r_star to improve vectorization
416    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
417      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
418    o adjoint:
419      Re-organized adjoint checkpointing according to Matt Mazloff
420      (but with modifs/completions/cleanups)
421      Storing is now bundled into large arrays to optimized I/O
422      (and second step in cleanup of the_main_loop)
423    
424    checkpoint59b
425    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
426      - export/import (between ocean & coupler) fields needed for ocean DIC.
427    o pkg/seaice:
428      - get rid of three more exchanges seaice_calc_viscosities (required
429        different loop boundaries in seaice_lsr and seaice_ocean_stress)
430      - bug fix in seaice_ocean_stress (update of lab_sea required)
431      - reduce loop boundaries to necessary minimum also in seaice_evp
432      - go back to the old way of computing deltaC/Z as the adjoint likes that
433        better
434    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
435      passive tracer to an Age Tracer) + update output.txt
436    o pkg/exf:
437      - implement A-grid / C-grid selection for wind-stress input files.
438      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
439      for now, in exf_bulk_largeyeager04.F only :
440      - change implementation for case where windspeed + 2. components wind-stress
441        are read-in. AND use rhoConstFresh to convert evap.
442    o pkg/seaice:
443      - use correct EXCH_UV for wind-forcing (on A-grid).
444      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
445        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
446    o pkg/exf:
447      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
448      EXF_INTERPOLATION:
449      - merge global_with_exf/code version of exf_interp_read.F
450        to the main code ;
451      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
452        reading the file ; Important: This options needs to be defined to recover
453        previous code.
454        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
455      - no longer loose real*8 precision along the way when using exf_iprec=64.
456    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
457      - change discretisation of evp-solver in order to avoid another exchange
458        (changes lab_sea) and clean up a little
459      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
460        help the adjoint (this also changes the results slightly)
461      - add a few "_d 0" where they had been missing in seaice_evp.F
462      - cleaning up: remove unused seaice_calc_rhs.F
463    o pkg/exf: some cleaning-up:
464      - change various "constants" into runtime parameters
465      - cleaned-up Large&Yeager04 routine which should eventually
466        replace exf_bulkformulae.F (changed names of S/R and CPP)
467        and merged various ALLOW_ATM_WIND options
468     only used with thsice pkg (in thsice_get_exf.F):
469      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
470        which are used when useStabilityFct_overIce=TRUE (= the default)
471      - change default values of ice & snow emissivity and scale downward LW
472        by ice & snow emissivity.
473    o pkg/thsice:
474     fix few little problems, in thsice_calc_thickn.F:
475      - growth vertically (and not laterally) if iceFrac == iceMaskMax
476      - melt only laterally if hIce < hThinIce (as the comments say)
477      and in thsice_extend.F:
478      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
479      - start to form ice as soon as the minimum ice-volume is reachable.
480     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
481      and cpl_aim+ocn
482    o pkg/kpp
483     - move computation of surface related input fields to KPP into a new
484       subroutine kpp_forcing_surf.F
485     - remove wrong (within bi,bj loops) EXCH calls.
486     - little cleaning (add argument myThid in last position, cvs header ...)
487     - for now, fix conservation problem by exchanging KPPviscAz (may not
488       be the best fix)
489    o pkg/seaice
490     - check for inconsistent evp parameter/cpp-flag combination
491     - remove leftover errIO flat for obsolete name list error handling
492    o OpenAD
493     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
494    
495    checkpoint59a
496    o pkg/seaice: some parameter clarifications and a little bit of clean up
497    o pkg/thsice: rename run-time parameters:
498       himin       -> hIceMin
499       himin0      -> hThinIce
500       hihig       -> hThickIce
501       i0          -> i0swFrac
502       transCoef   -> bMeltCoef
503       frac_energy -> fracMelting
504      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
505       with default values (for now) that do not change the results.
506      remove old version of thsice vars advection in pkg/seaice.
507    o in FFIELDS.h:
508      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
509      - make pLoad & sIceLoad always available (but still only used if
510         ATMOSPHERIC_LOADING is #define).
511    o pkg/kpp: replaced _KPP_RL with _RL
512    o bug fixes for vertical diffusivity computations when both KPP and
513        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
514        are no longer updating the vertical diffusivity array
515        (passed as argument) but are (re-) setting those arrays.
516    o pkg/seaice: fix bug in evp solver, while doing that
517      - change (improve?) discretization of stress computations for both
518        cgrid-lsr and evp solver
519      - add a new routine to compute strain rates
520      - the above changes lab_sea results
521      - add no slip conditions for evp solver (off by default), lsr-version
522        may follow
523      - fix exchange for shear at Z-points (does not change lab_sea)
524      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
525        (to force the user to pick a time step since there is not "safe" way
526        of choosing it)
527      - add principal stress diagnostics
528      - rearrange fields for evp a little to avoid having to call a: too many
529        exchanges and b: exchanges for stress trensor components which we do
530        not have.
531      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
532        of evp, complete rewrite for lsr case (latter is does not yet work
533        in all cases)
534    o pkg/kpp: add code to have mixing in shelf ice caverns
535      - add myThid to all kpp routines (long overdue)
536    
537    checkpoint59
538    o pkg/exf:
539      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
540        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
541      - move exf header files from lower_case.h to UPPER_CASE.h ;
542        add missing cvs Header & Name
543      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
544      - add namelist param. selectStressGridPosition, exf_monFreq
545      - retire many _CLIM routines, and remove data.exf_clim
546        + params moved to data.exf
547        + climsst, climsss now handled by exf_set_gen, i.e.
548          climss?period=0 refers to constant field,
549          climss?period=-12 to monthly forcing
550      - split up namelists in data.exf
551    o pkg/seaice:
552      - remove seaice_exch and seaice_exch_uv
553      - remove superfluous exchange of theta
554      - add myThid to seaice_budget_ocean/ice
555      - add new interface for atmospheric wind forcing (C-grid only)
556        + new routine
557        + two new field (taux, tauy for stress over ice)
558        + removed one global field (DAIRN) for C-grid case only
559    o pkg/thsise
560      - 2nd set of modifs for thsice adjoint in conjunction with exf
561    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
562    
563    checkpoint58y_post
564    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
565      vertical diffusivity, similar to that in MOM4; turned on using
566      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
567      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
568    o Added capability for 3D specification of background vertical diffusion
569      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
570      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
571      "data" file that contains the 3D vertical diffusivity coefficients.
572    o ice dynamics (pkg/seaice) with thsice thermodynamics:
573      - add code within pkg thsice to advect & diffuse sea-ice fields
574      similar to (and will replace) what has been added in  seaice_advdiff.F,
575      but: - conserving Mass, Heat & Salt.
576           - better when using non-linear advection scheme (not yet fully tested)
577           - can also be used in atmospheric set-up (for now, only the diffusion).
578    
579    checkpoint58x_post
580    o IO option for global-file compact format:
581      - add options when generating topology (utils/exch2/matlab-topology-generator)
582      - add I/O capability (pkg/mdsio).
583      - adapt utils/matlab/rdmds.m to read this format.
584      for now long-line format not yet supported by pkg/mdsio (& exch2).
585    o shelfice: add a few diagnostics
586    
587    checkpoint58w_post
588    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
589      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
590      (and replace horiVertRatio in NH code).
591      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
592                         and tutorial_plume_on_slope (sensitive to truncation)
593    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
594      directly to drive seaice model (C-grid only)
595    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
596     - reintroduce computation of wind from stress,
597     - compute tau (in exf_bulkformulae.F) from windstress averaged to
598       mass points to avoid tau = 0
599     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
600    o rdmnc.m: make it work with "global" files created with gluemnc
601    o rdmnc.m : some improvements in dealing with singleton dimension
602      (tested on all testreport mnc output files).
603    o genmake2: disable pkg/profiles if netcdf test fails.
604    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
605    o move call to cal_readparms up to make calendar parameters/variable available
606      to all packages
607    
608    checkpoint58v_post
609    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
610      useDynP_inEos_Zc tested.
611    o pkg/exf: changes to properly interpolate/mask/scale initial fields
612    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
613      and portions thereof.  See read_cs.txt for description and examples.
614    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
615      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
616      following the great-circle arc between those 2 points.
617    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
618      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
619    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
620     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
621     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
622     - still needs work (not working with some options ; efficiency to improve)
623       and serious testing.
624     - use this scheme for temperature & salinity in 2 advection test exp.:
625       advect_xy & advect_xz, respectively.
626    
627    checkpoint58u_post
628    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
629    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
630    o testreport: add option "-skipdir" to skip some test.
631    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
632      momentum calculation.
633    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
634    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
635      remove checkpoint.F and the_correction_step.F (no longer used);
636      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
637    o add option (linFSConserveTr) to correct for tracer source/sink due to
638      Linear Free surface
639    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
640    o pkg/thsice: fix reading mnc-pickups
641    
642    checkpoint58t_post
643    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
644    o pkg/mdsio:
645     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
646       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
647       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
648     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
649     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
650       either MDS_READ_FIELD or MDS_WRITE_FIELD )
651     - new S/R (to replace MDSWRITEMETA), which allows to write more
652       informations (variable names, time ...) to meta files.
653     - modify rdmds.m to give back the meta file content.
654    o pkg/diagnostics: change vertical interpolation to be safer, and more
655       flexible (define p-levels to interpolate to in data.diagnostics);
656      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
657       diagnostic pointer.
658    o pkg/seaice: more cleaning up of seaice_growth, added many comments
659    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
660    o fix multi-category seaice:
661     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
662       SEAICE_MULTICATEGORY
663     - fix short wave heat flux
664    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
665       and allow to use EVP solver. Change forward lab_sea: test both EVP
666       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
667    o Initial check-in of lab_sea adjoint
668      (very similar to natl_box_adjoint/code_seaice)
669      * used C-grid and EVP solver
670      * used KPP, GM/Redi
671      * uses inAdExact=.TRUE.
672      * gradient checks fail for both ADM and TLM
673        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
674        f.d. gradients actually seem more problematic than ADM, TLM gradients;
675        issue is related to forward mismatch between g77 an ifort
676    o pkg/seaice: overhaul of thermodynamics
677     - growth.F and groatb.F are replaced by new routine seaice_growth.F
678     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
679     - move a few global fields out of SEAICE.h into seaice_growth.F and
680       make them 2D (FICE/QNETO/ ...)
681     - remove FO (it is the same as QNETO)
682     - introduce a few local fields to avoid modifying external fields such
683       as atemp, etc.
684    
685    checkpoint58s_post
686    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
687      changed exf_set_gen.F so that
688        genperiod=0 means input file is one time-constant field and
689        genperiod=-12 means input file contains 12 monthly means
690    o CG2D: use pre-computed solver main-diagonal (stored in common block);
691      this affects truncation error ; generate new output file for exp. which
692      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
693        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
694        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
695        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
696        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
697        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
698    o start implementation of deep-atmosphere and anelastic formulation
699    o verification: remove 2nd copy of input files and use script "prepare_run"
700      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
701    o mom_common/vecinv/fluxform: fix a few initialisation isssues
702    o profiles: fix for multithreaded case
703    
704    o diagnostics: rename few diags:
705      s/'PRESSURE'/'RCENTER '/g
706      s/'TICE    '/'oceFreez'/g
707      s/'TAUX    '/'oceTAUX '/g
708      s/'TAUY    '/'oceTAUY '/g
709      s/'SWFLUX  '/'oceQsw  '/g
710      s/DIFx/DFxE/g
711      s/DIFy/DFyE/g
712      and add few ocean-forcing diagnostics:
713      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
714    o modifications to pkg/seaice/growth.F and budget.F, which change results of
715      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
716      as actual snow thickness.  It now refers everywhere to effective snow
717      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
718    
719    checkpoint58r_post
720    o modifications to pkg/seaice/growth.F, which change results of
721      lab_sea experiment: fixes pertain to melting snow over open water, to
722      masking EVAP under sea ice, and to using the correct AREA variable for
723      computations of EVAP, PRECIP, HSNOW, and GHEFF
724    o add ability to read bathy, salt, and theta using MNC (off by def)
725    o add flooding algorithm and advection of HSNOW for pkg/seaice;
726      both are turned off by default and do no change any results
727    o seaice advection with pkg/thsice: a step toward the use of non-linear
728      advection scheme, but #ifdef or commented out for now (requires more EXCH).
729    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
730      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
731      in natl_box (affects results @ truncation level: update output.txt)
732    o multi-threading and IO:
733      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
734      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
735        (needed to work with SingleCpuIO): tested in all verif. exp.
736    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
737      affects the results (but none of the verification test uses this scheme).
738    o Adding some pkg/diagnostics capability to pkg/seaice
739      (will certainly be subject to changes)
740    o ctrl: adding new control variables:
741      lwflux, lwdown, evap, snowprecip, apressure, runoff
742    
743    checkpoint58q_post
744    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
745      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
746      high_res_cube configuration by 4% on Columbia.
747    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
748      add (in global_with_exf/code) a version of EXF_INTERP_READ without
749      dynamical allocation (seems to work in multi-threaded).
750    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
751      single CPU io) so that TAF does not have to see EESUPPORT.h
752    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
753    
754    checkpoint58p_post
755    o obcs: stop if obcs is used with useCDscheme = .true.
756    o shelfice:
757     - fix a sign error so that no slip at shelfice interface works
758     - remove stop for combination non-hydrostatic code and shelfice. That does
759       not mean, that the results are correct, but at least they are numerically
760       stable
761    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
762    o added adjoint exch routined for all exch*3d* routines
763      and updated flow directives
764    
765    checkpoint58o_post
766    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
767      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
768    o change controling S/R for writing pickup file (new S/R do_write_pickup)
769      and clean-up reading/writing of pickup files.
770    o fix local version of read/write pickup (NH part) in rotating_tank/code
771    o simplify EXCH interface:
772     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
773     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
774    o added the regrid package
775    o shelfice:
776     - add a simple boundary layer scheme to reduce noise
777     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
778    
779    checkpoint58n_post
780    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
781       local variable (not in common block).
782    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
783      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
784      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
785        to work with SingleCpuIO.
786    o add "_d 0" to real constant of pkg/cfc subroutines ;
787       update exp. cfc_exemple & tutorial_cfc_offline output files.
788    o multi-threading and IO:
789      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
790        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
791      - barrier before and after reading.
792      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
793      - avoid using MDS_WRITELOCAL for LAND pkg output.
794      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
795        common-block variables ; Allows multi-threading with master-thread IO.
796    o change default MAX_NO_THREADS from 32 to 4 ;
797      and stop cleanly when MAX_NO_THREADS is too small.
798    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
799    
800    checkpoint58m_post
801    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
802       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
803    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
804       keep global_ocean.90x40x15 (for AD testing) with former secondary test
805       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
806    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
807        add MITgcm_tutorials (= code + all the tutorials)
808    o ecco, option to compute cost for total ssh (mean+anom)
809    o consistent with addition of ptracer and ssh in pkg/profiles
810    o profiles: adding ptracer and ssh
811    o testreport: change multi-test output-file name
812      (from output.txt.{name} to output.{name}.txt)
813    o profiles: now ok for mutli-tiles case
814    o seaice: add 4 parameters for different advection schemes for area,
815      (effective) seaice thickness, enthalphy, and snow height. Their default
816      is the standard parameter SEAICEadvScheme
817    o calc_gw:
818     - add cosFacU in zonal viscous flux (harmonic.visc.).
819     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
820       of tutorial_plume_on_slope.
821    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
822    o calc_gw: true flux-form, account for horizontal grid spacing.
823      update rotating_tank results, but not plume_on_slope (affected at
824      truncation level, 11 digits).
825    
826    checkpoint58l_post
827    o calc_gw:
828     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
829     - remove side-drag for now (need to fix it); update plume_on_slope results.
830     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
831    o commit code to make SST/SSS weights spatially variable
832      (based on either variable in-situ or variable initial T/S weights)
833    o pkg/ecco:
834      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
835        now based on horizontally varying weights wthetaLev, wsaltLev
836      * cost_averagesflags now returns year indices in addition to day, month
837      * sflux balance is performed on annual basis
838        (sflxumm, sfluxmm2, bal_sfluxmm)
839      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
840        including separate counting and multipliers
841    o pkg/rbcs
842      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
843    
844    checkpoint58k_post
845    o testreport:
846     - always build in dir. "build" (if not there, mkdir build instead of building
847       & running in input)
848     - run in dir run (if it exists), in build otherwise.
849     - call prepare_run (if input/prepare_run exists)
850     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
851    o pkg/exf modifications to interpolation and rotation routines for more
852       reasonable treatment of North Pole singularity: for tracers North Pole
853       value is set to northernmost zonal-mean value, for zonal velocity it is
854       set to zero, and for meridional velocity it is set to northernmost value.
855    o pkg/exf/exf_check_range.F
856     - add tile index to diagnostics and move stop statement to the very
857       end of the routine.
858    o pkg/diagnostics: (diagnostics_main_init.F)
859      define title of isomorphic variables according to the current config.
860    o pkg/thsice with pkg/seaice dynamics:
861    - fix domain of computation (interior only, required for exf) and do exchanges
862    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
863    o towards a standard way of dealing with multi-threading in MONITOR
864      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
865    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
866       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
867    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
868    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
869    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
870       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
871    o tracer advection:
872     - clean-up and simplify calc_common_factors.F
873     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
874       advection subroutine (but still not used within DST advection S/R)
875    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
876    
877    checkpoint58j_post
878    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
879      from file (collects calls previously in FORWARD_STEP)
880    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
881    o adjoint store dir. adjusted accordingly
882    o genmake2
883      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
884    
885    checkpoint58i_post
886    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
887      on wind stress (SEAICEstressFactor defaults to 1.)
888    o Total number of Timers is finite (<=40): comment out 2 non-essential one
889      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
890    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
891      on CS-grid: no longer loosing mass.
892    o exf & curvilinear-grid: no longer modify longitude xC & xG.
893    o pkg/ggl90: fix sloppy output and fix a bug
894    o pkg/seaice: added SEAICEuseEVPpickup parameter
895      - Set to false in order to start EVP solver with
896        non-EVP pickup files when using SEAICEuseEVP
897      - fix sign error in diffusion in seaice_calc_rhs
898    
899    checkpoint58h_post
900    * Modifications for bottom topography control
901      o replace hFacC by _hFacC at various places
902      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
903      o add non-self-adjoint cg2d_nsa
904      o update autodiff support routines
905      o re-initialise hfac after ctrl_depth_ini
906      o works for 5x5 box, doesnt work for global_ocean.90x40x15
907    * Adding verification for 5x5 box (4-layer) bottom topography control
908    
909    checkpoint58g_post
910    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
911       used for mean seasonal cycle, mean diurnal cycle); add an example
912       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
913    o pkg/ggl90:
914      - add parameter (minimum surface kinetic energy)
915      - fix bug (avoiding division by zero)
916    o couple pkg/thsice to pkg/seaice:
917      - modify advection in seaice to accomodate new scalar fields to be advected
918      - only muliDimAdection scheme work with seaice/thsice
919      - mapping of thsice-variables to seaice-variables, back and forth
920      - does not break the verification experiments, but does not give the
921        desired results either
922    o pkg/seaice
923      - make (default) second order advection a bit less confusing?
924    
925    checkpoint58f_post
926    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
927      to pkg/seaice):
928      - new routines thsice_map_exf and thsice_get_exf provide the interface
929      - add an additional formal parameter to thsice_solve4temp
930    o pkg/exf:
931      - add new fields wspeed, snowprecip (to be able to couple to thsice)
932      - correct Stefan-Boltzmann constant
933      - new parameter for longwave surface emittance
934      - separate some stuff from exf_bulkformulae into new routines  
935        exf_radiation, exf_wind
936      - add new parameters and constants: longwave emissivity for ocean, ice
937        and snow, evaporation parameters over ice
938      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
939        either wind from stress or stress from wind
940    o pkg/thSIce:
941    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
942    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
943       and THSICE_CALC_THICKN
944    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
945    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
946      to make debugging easier.
947    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
948    o pkg/bulk_force:
949      - clean-up comments and parameters ;
950      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
951    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
952      generate new output for test-experiment: aim.5l_cs.thSI
953    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
954      testreport accordingly
955    
956    checkpoint58e_post
957    o SEAICE_CGRID adjoint done
958    o R_STAR adjoint implemented.
959      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
960      * need to sort out init. of h0facc, etc.
961    o Make pkg/profile fully independent of ecco,cost, etc. stuff
962      to be able to use it in pure forward.
963    
964    checkpoint58d_post
965    o upgrade simple test-experiment to tutorial example:
966     step.1: duplicate the experiment and (step.2) will remove the old copy.
967      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
968      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
969      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
970      tutorial_global_oce_biogeo    <- copy of dic_example
971      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
972      tutorial_plume_on_slope       <- copy of plume_on_slope
973      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
974      tutorial_global_oce_optim     <- empty for now (David ?)
975      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
976     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
977    o correct a sign problem in cost_scat.F
978    o obcs and ptracers: fix boundary conditions for advections schemes
979      with larger stencil
980    o thsice adjoint: start
981    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
982      completeness
983    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
984      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
985    o ptracers adjoint:
986      * avoid extensive recomputatations
987      * fix missing re-init. of gptr (missed by TAF)
988    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
989      me to turn off the excessive output to STDOUT that this package produces
990    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
991      and add those terms in Vector-Invariant formulation.
992    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
993      if the control period (xx_hfluxperiod etc) is 0
994    o in profiles pkg, clean routines and fix details
995    o in ecco pkg, reading ssh data:
996      fix problem in case the model does not start at iter0=0
997    o fix mnc-pickup/restart for ptracers
998    o new package prifiles:
999      code to compute profile-based cost by Gael Forget
1000      (modifs in ecco, ctrl, autodiff)
1001    o Benign bug fix in initialization (spotted by M. Mazloff) of
1002      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1003    
1004    checkpoint58c_post
1005    o adjoint: finish NLFS adjoint and provide reference output in
1006      verification/global_ocean.90x40x15/results_ad_nlfs
1007    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1008      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1009      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1010      with SEAICE_CGRID defined.
1011    o move calendarDumps from "data" to "data.cal" and clean-up the code
1012      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1013    o add useEXF & useCAL flags (for now, set in hard-coded way)
1014    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1015      (were missing in NH mode, and wrong in quasihydrostatic mode).
1016      waiting for Chris updated version of calc_gw to add those CALLs.
1017    o fix bug in quasihydrostatic S/R ;
1018      add a test for this option: global_ocean.90x40x15.qshyd
1019    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1020      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1021    o add on/off flag useOffLine for package OFFLINE
1022    o seaice:
1023      - modify advection so that it works also on the C-grid
1024      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1025        problem in multi-tile runs with C-grid
1026      - add flags for clipping ice velocities and/or masking solver forcing
1027      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1028        C-grid solver
1029      - added a few comments to seaice_diffusion.F
1030      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1031        are now exclusive)
1032      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1033        required re-ordering the code a little:
1034       + make DAIRN global variable (defined in SEAICE)
1035       + move computation of the viscosities eta and zeta into a new separate
1036         routine (because I need to recompute them in seaice_ocean_stress.F)
1037    
1038    checkpoint58b_post
1039    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1040      update output.txt of exp. aim.5l_cs.thSI
1041    o various mnc cleanups and improvements:
1042      + shrink lookup tables by factor of ~4
1043      + better error reporting when running out of lookup space
1044      + able to handle longer path/file names (up to 500 chars)
1045    o adjoint:
1046      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1047      - TBD: "hidden" mom_vecinv recomp. in dynamics
1048    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1049     (allow to differentiate between forcing components using new integer flags:
1050      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1051     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1052    o ecco
1053      - enable trend removal from SSH anomaly obs.
1054    o adjoint
1055      - a fix for PmEpR when #undef EXACT_CONSERV
1056      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1057      - try to fix "hidden" recomp. in forward_step for NLFS
1058        (NLFS seems broken sometimes after I checked it in)
1059    o seaice:
1060     - add c-grid version of the dynamic solver:
1061       + three new routines that are the c-grid substitute lsr, dynsolver
1062         and ostres
1063       + put a few fields that were local to dynsolver into global common
1064         blocks, so that I can move the computation of stresses etc into
1065         seaice_lsr (saves coding but may break the adjoint).
1066     - replace more hardwired parameters by runtime parameters
1067     - add ice masks that mask the rhs of the implicit solvers where there
1068       is no ice (commented out in seaice_dynsolver, because i am not sure
1069       if this works properly), eventually this should replace the clipping
1070       of ice velocities in seaice_dynsolver to +/-40cm/s.
1071    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1072      include it only where its needed
1073    o move balancing of fluxes before the call of external_forcing_surf
1074    o seaice:
1075      - correct units of turning angles (now they are really in degrees)
1076      - move computation of GWATX/Y out of main routine into dynsolver
1077      - initialize GWATX/Y in seaice_init
1078    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1079      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1080    o seaice: add runtime flags for turning angles (default to zero)
1081    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1082      and trend from exf forcing and ctrl control adjustments
1083    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1084      (since checkpoint57x_post)
1085    o change the default rotation period to 86164.s = the Earth rotation
1086    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1087      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1088    o seaice advection: add code for choosing between the default (2nd order
1089      central differences) and multiDim advection schemes provided by
1090      pkg/generic_advdiff
1091    o seaice:
1092      - removed all references to SEAICE_GRID.h fields from
1093        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1094        (cubed-sphere configuration will change a little)
1095      - grid computations in seaice_init are obsolete now.
1096      - cleaned up code a little so that is easier to read (hopefully).
1097      - added new (better?) discretizations of default advection and diffusion
1098        (turn on with SEAICEuseFluxForm)
1099      - replace 1 in 3d global fields by kSurface in growth.F
1100      
1101    checkpoint58a_post
1102    o seaice:
1103      - bug fix in advect.F
1104    o shelfice:
1105      - separate shelfice load anomaly from pload (breaks with time
1106        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1107        Its default is 0., but it may be computed more cleverly from (unknown)
1108        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1109        done offline. A good approximation of the pressure load anomaly is
1110        necessary to avoid large initial adjustment processes underneath
1111        deep-reaching shelfice.
1112      - small fix in ISOMIP shelfice_thermodynamics
1113      - add more sophisticated thermodynamics of Hellmer (1989), this is
1114        now the default
1115      - give a few constants more intuitive names
1116    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1117      if bulk formulae are used in long integration (especially EmPmR). Turn
1118      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1119      if balancePrintMean, the imbalance that is substracted is printed to
1120      STDOUT.
1121    o fix bug (typo) in obcs_apply_eta.F
1122    o add a new package shelfice which enables us to model the circulation
1123      underneath shelf-ice with draughts of hundreds of meters.
1124     - works
1125     - to do: + include improved thermodynamics
1126              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1127                instead of new field kTopC
1128              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1129                instead of new field R_shelfIce and new code in ini_depth.F
1130                and ini_mask_etc.F?
1131              + adjust vertical mixing schemes?
1132    o seaice pkg:
1133     - add a cpp-flag to include a simple formula for a salinity dependent
1134       freezing point of sea water at the surface
1135     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1136       meridional stresses are now different (and hopefully correct)
1137    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1138       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1139       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1140    o pkg/diagnostics: add options and parameters for regional-statistics
1141       diagnostics ; define regions by reading a region-mask from a file
1142       (might add other options later)
1143    o pkg/bulk_force:
1144     - add option and parameters to use AIM surface-flux formulae.
1145     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1146       others forcing fields (defined in PARM05, parameter file "data") are loaded
1147       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1148     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1149     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1150     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1151       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1152     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1153    
1154    checkpoint58
1155    o add "--embed-source" option to genmake2 which, when the supporting
1156      tools can be compiled (as determined by genmake2) will turn on the
1157      embed_files package which then embeds the entire MITgcm source code
1158      (*.[fFhc] + Makefile) used for the build within the executable
1159      - requested by CNH but off by default
1160      - adds a paltry <9MB to the mitgcmuv executable in most cases
1161      - only writes the output when useEMBEDSRC in eedata is true
1162    o clean up 3-dim. relaxation codes:
1163      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1164      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1165      * Thanks to Tom Haine for testing!
1166    
1167    checkpoint57z_post
1168    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1169      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1170    o fix the pickup behavior for obcs in combination with ptracers
1171    o fix a bug in ptracers_external_fields_load
1172    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1173      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1174    o transfered surface NH pressure to eta field (if exactConserv).
1175    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1176         and update lab_sea output.txt file.
1177    o completing 3-dim. relaxation code: additional term
1178         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1179      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1180      * At compile time, in "EXF_OPTIONS.h" set
1181          #define  ALLOW_CLIMTEMP_RELAXATION
1182          #define  ALLOW_CLIMSALT_RELAXATION
1183      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1184          tauThetaClimRelax3Dim = 15552000.0,
1185          tauSaltClimRelax3Dim  = 15552000.0,
1186      * 3 cases:
1187          1) Use a constant-in-time 3-dim. field
1188          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1189          3) Real-time relax. to time-evolving prescribed field
1190    o Adding Laplacian-type smoothness constraint on
1191      initial and boundary (forcing) controls (ic, bc)
1192      * enable at compile-time via
1193        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1194      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1195      * Absolute scale somewhat unclear so far
1196      * no area weighting was included since no other cost term does so far
1197    
1198    checkpoint57y_post
1199    First step for a NLFS adjoint
1200    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1201    o new init. routines for calc_r_star, calc_surf_dr
1202    o still need to deal with ini_masks_etc
1203    o testreport seemed happy
1204    checkpoint57y_pre
1205    
1206    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1207    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1208    o add new offset feature to offline pkg (plus minor cleanup)
1209    o cfc fixes for final year of integration
1210    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1211      be in GCHEM_OPTIONS).
1212    
1213    checkpoint57x_post
1214    o fix testreport Pb in multiple test experiment.
1215    o cleanup our namelist syntax in verification:
1216      - make it more F95 standards compliant (some work still needed)
1217      - allows the vast majority of our tests to work with gfortran
1218    o Non-Hydrostatic:
1219     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1220     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1221    o Allow to apply AB on T,S rather than on AB(gT,gS):
1222     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1223     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1224       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1225     - need a "clever" read_pickup to restart from the other AB formulation
1226    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1227    o remove some unused variables (reduces number of compiler warnings)
1228    o adjoint
1229      * Disable useVariableViscosity for adjoint for time being
1230        (there are a number of extensive recomputations)
1231      * Initialize certain variables needed for adjoint
1232    
1233    checkpoint57w_post
1234    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1235                 fix the singleCpuIO RS version of MDSWRITEFIELD
1236       and add a WARNING if using globalFiles=T with multi-processors.
1237    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1238      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1239    o tracer advection scheme:
1240      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1241       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1242       was not very convenient).
1243      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1244       (further tests needed for the implicit DST & Flux-Limiter schemes).
1245    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1246      and sRef for convenience, handy, when you want to initialize
1247      ptracers in a large domain with a constant non-zero value. Also,
1248      untangle ptracers_init.F a little.
1249    
1250    checkpoint57v_post
1251    o change dome exp. to use variable viscosity in side-drag terms.
1252    o remove all the files from the cfc_offline test since they are now
1253      incorporated into tutorial_cfc_offline which has been producing
1254      identical results for a few days of testing
1255    o add new parameter: sideDragFactor to enable half-slip-side BC
1256      and change side-drag S/R to use viscosity from mom_calc_visc
1257      (can switch back by setting sideDragFactor=0.); affects results at
1258      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1259       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1260    o vorticity & strain are now computed without masking, to account for
1261      no-slip-side BC in variable viscosity calculation ; mask is applied
1262      anyway later on, before computing advection/coriolis terms.
1263    o modify exp4 to test new obcs support for reading from external files
1264      and for passive tracers
1265    o fix behavior of ptracers_monitor when monitor output is written to a
1266      netcdf-file; still not independent of monitor.F (writes in the same
1267      file).
1268    o change default value of tRef (put a uniform, meaningful value for ocean
1269      & atmos) and initialize sRef (was missing, as Martin mentioned).
1270    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1271      to be proportional to enstrophy dissipation length.  Thus,
1272       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1273      This is now consistent with Smagorinsky and with the manual.
1274    
1275    checkpoint57u_post
1276    o OBCS and PTRACERS: add open boundary support for passive tracers
1277      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1278        OB-values from file; this is not different from the way theta and salinity
1279        are treated
1280      - however, Orlanski-radiation conditions are not supported, and the model
1281        will stop if you use pTracers and Orlanski at the same time.
1282      - beefed up the rountine obcs_external_fields_load: now only those open
1283        boundary values are overwritten with values from files for which there
1284        are really files, otherwise the OB-fields remain untouched. This makes
1285        it possible to use different OBs at different ends of the domain (as
1286        with EXF)
1287    o reduce number of exch calls in shap_filt (s2).
1288    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1289      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1290    
1291    checkpoint57t_post
1292    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1293    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1294      same truncation, independent of the face number: affects affects several
1295      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1296    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1297      note that biharmonic viscosity + no-slip was not tested in any experiment.
1298    o fix bug in non-linear free-surf side-drag ; generate new output for
1299      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1300    o make mnc honor the writeBinaryPrec flag for most kinds of output
1301    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1302    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1303      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1304    o add brackets in multi-terms sum to get same truncation, independent of
1305      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1306      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1307    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1308      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1309      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1310      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1311      Suggested values of viscosity parameters found in mom_calc_visc.
1312      Many new viscosity diagnostics available.
1313    
1314    checkpoint57s_post
1315    o Add clearing-house for viscosity calculations, mom_calc_visc and
1316      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1317      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1318      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1319      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1320      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1321      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1322      ViscAhStrain and viscAhTension are now retired.
1323    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1324    o In response to JMC's bug report, genmake2 now ignores any soft-links
1325      that it finds in the *current* directory when searching for files.
1326      Soft-links found in any other source directories will still work as
1327      they did before.
1328    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1329      a C routine to unlimit the stack size
1330    o mnc-ify pkg/aim snapshot vars
1331    o mnc-ify pkg/land as requested by Daniel
1332    o various changes to mnc including:
1333      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1334      - output can now be grouped so that all files within a group
1335          change the ITER portion of their names in lock-step together
1336      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1337          and works with both EXCH1 and EXCH2 (but needs more testing)
1338      - writing works for all verification test cases w/ g77 on Linux
1339    
1340    checkpoint57r_post
1341    o make MNC variable initialization happen earlier
1342    o add diagnostics for (almost) each term of the momentum Eq.
1343    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1344    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1345    o remove MINIMAL_TAVE_OUTPUT option ;
1346      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1347    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1348      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1349    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1350    o add time-dependent SST, SSS control
1351    o cost terms in ecco/ modularized (new cost_generic.F)
1352    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1353    o new infrastructure for seaice model vs. obs misfits in seaice/
1354      * driver from the_main_loop.F is seaice_cost_driver.F
1355      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1356      * gradient check in Exp. 6a of natl_box_adjoint/
1357    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1358      (see README file)
1359    
1360    checkpoint57q_post
1361    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1362    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1363      - bug was reported by Jean-Michel and Ian Fenty
1364    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1365      update exp. cpl_aim+ocn output.
1366    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1367      Needed for high-res. runs with large global files
1368      to be able to limit tapelev size
1369    o Changed some tests for adjoint:
1370      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1371      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1372      * global_ocean.90x40x15/ back to default 3-level checkpointing
1373    o Modifications to enable scripted COMMON to MODULE conversion
1374      * verification/OpenAD/code/ has necessary scripts and description;
1375      * converts, compiles and runs successfully;
1376    
1377    checkpoint57p_post
1378    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1379    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1380      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1381    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1382    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1383      (was already the case for dissipation with mom_vecinv,
1384       and also the case for grad.PhiHyd when staggered-timeStep)
1385      This will allow to put dissipation out-off the AB time-stepping.
1386     Unfortunately, affects truncation error. Update output of exp. that "fails"
1387      (cg2d matching number) and leave the others for later: front_relax(10),
1388      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1389      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1390    
1391    checkpoint57o_post
1392    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1393      (2) its ready to be documented during the 20050801 DocFest
1394    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1395      for ideal_2D_oce and lab_sea on linux_ia32_g77
1396    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1397      in global1x1_tot/code_seaice_adj to access indices 32, 33
1398      (worth another tag)
1399    
1400    checkpoint57n_post
1401    o adding precip control xx_precip 32
1402    o adding swflux control xx_swflux 33
1403    o Replacing 10 forcing penalty cost routines by 1 generic.
1404    o Implementing partitioning in time-mean and variable adjustment
1405      for atmos. state.
1406    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1407    o in natl_box_adjoint:
1408      * updated exp 1 to 10
1409        (but does not have time-mean vs. variable split results yet)
1410    o updated global1x1/*_seaice_adj/
1411      to incorporate latest changes
1412    o enable useSingleCpuIO for mdsio vector routines
1413      (applies in particular to tapelev I/O)
1414    o removed inefficient K-loop in all active_file*control*.F
1415    
1416    checkpoint57m_post
1417    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1418      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1419    o pkg/exch2: filling of face-corner halo regions is optional
1420      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1421    
1422    checkpoint57l_post
1423     tag before updating tutorials (pre-release-2)
1424    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1425       for output and interpolation of input fields onto model grid)
1426    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1427       Affects results of exp. rotating_tank ; update output.txt.
1428    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1429          and taking the square quantity and/or using a fraction-weight field.
1430    o fix aim_diagnostics_init.F mate numbers.
1431    o add mnc output capability to diagnostics/diagstat and update
1432      our cvsignore files for the ACSII output generated
1433    
1434    checkpoint57k_post
1435    o lab_sea now uses diagnostics package and provides a suite of
1436      new EXF diagnostics output.
1437    
1438    checkpoint57j_post
1439    o exf
1440      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1441        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1442        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1443      * extended diagnostics output
1444        - now includes all EXF variables
1445        - hs, hl moved to common block
1446        - separate S/R for diagnostics, called after ctrl vector is added
1447        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1448        - EXFqnet contains true Qnet (i.e. includes qsw)
1449      * updated verif. lab_sea, global_with_exf
1450      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1451        to ensure that diagnostics sees a true EXFqnet
1452    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1453    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1454      several times with different frequencies.
1455    o mnc-ify the thsice package as requested by Daniel Enderton
1456      - the monitor--MNC output needs work
1457      - many attributes need to be added (most are currently blank)
1458    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1459      - many attributes need to be added (most are currently blank)
1460    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1461    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1462    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1463      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1464         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1465    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1466     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1467    
1468    checkpoint57i_post
1469    o Diagnostics package was changed: diagnostic allocation is now deactivated
1470      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1471    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1472      add 1rst Order upwind vertical Shear.
1473    o add a quick fix for A/B checkpointing in OFFLINE mode
1474    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1475      end-run around the C/Fortran linking horror in eesup/src/timers.F
1476    o added pkg/runclock: allows user to terminate run based on wall clock
1477    o added non-hydrostatic scaling parameter: nh_am2
1478    o pkg/my82: futile attempt to make results compiler-independent by adding
1479      some "_d 0", etc. no effect.
1480    o for mnc output, fill the 'T' coordinate var with myTime and create a
1481      separate 'iter' variable for iteration count
1482    o pkg/diagnostics:
1483      add new capability: output of Global/Regional & per-level statistics ;
1484      tested against monitor output (including land & thSIce) on various exp.
1485    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1486    
1487    checkpoint57h_done
1488      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1489      data.diagnostics, data.gchem, data.ptracers) is done.
1490    
1491    o pkg/diagnostics: prepare for Global/Regional statistics.
1492      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1493    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1494      and rename it: DIFFERENT_MULTIPLE
1495    
1496    checkpoint57h_post
1497    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1498    o pkg/diagnostics: change output frequency, now in seconds (instead
1499      of Nb of iterations). This requires to change data.diagnostics.
1500    checkpoint57h_pre
1501    
1502    o in mnc, let the user create the output dir if both mnc_outdir_date
1503      and mnc_outdir_num are false
1504    o add fflags() to pkg/diagnostics which allows one to specify, on a
1505      per-file basis, the file precision [default behavior is unchanged]
1506    o added diagnostics to pkg/kpp, including computation of mixed layer
1507      depth based on a temperature/density criterion
1508    o updated verification/natl_box to test the new pkg/kpp diagnostics
1509    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1510    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1511    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1512      not mnc -- this mistake was found by JMC and is now corrected
1513    
1514    checkpoint57g_post
1515    o add Adams-Bashforth 3rd Order time stepping:
1516      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1517      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1518    checkpoint57g_pre
1519    
1520    o make lambda[Theta,Salt]ClimRelax spatially varying
1521      (default remains spatially uniform constant based on tau)
1522    o added new control variables
1523      * init. uVel, vVel, etanN
1524      * lambda[Theta,Salt]ClimRelax
1525    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1526      (suggested by G. Forget)
1527    
1528    checkpoint57f_post
1529    o add parameter "baseTime" = model base time = time at iteration zero
1530      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1531      account for baseTime shift
1532    o move Coriolis arrays from PARAMS.h to GRID.h
1533    checkpoint57f_pre
1534    
1535    o mnc-ifying the seaice package
1536    o introduced an alternative length scale calculation for use in the limiting
1537      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1538    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1539    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1540      as well as grad(vort3).  Made it compatible with both approximate form
1541      for the cubed sphere and full form of these gradients.  Added flag
1542      useFullLeith to select between approximate and full form.  
1543    o add "d0" in getcon.F to reduce differences between compilers/platforms
1544      update output.txt of exp. fizhi-gridalt-hs
1545    o change port_rand funtion to allow to set the seed.
1546    o fix obscure MNC bug involving conversion between reals and integers
1547      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1548        new version is now more standards-compliant
1549    o adjoint-related modifications
1550      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1551      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1552      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1553    
1554    checkpoint57e_post
1555    o Adding eddy stress controls a la Ferreira et al.
1556    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1557    
1558    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1559      update output.txt of exp. fizhi-gridalt-hs
1560    o add more "Z" dimensions and associated coordinate vars to MNC
1561    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1562    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1563      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1564      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1565      months and years.  Requires pkg/cal.
1566    o diagnostics: add pickup functionality
1567      - off by default for backwards compatibility
1568      - current version only uses MDSIO -- MNC will be added
1569    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1570    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1571    
1572    checkpoint57d_post
1573    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1574    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1575      output from the diagnostics package
1576    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1577    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1578      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1579    o add coordinate variables to the MNC output from the diagnostics package
1580    o change MNC-flags default value: true when useMNC=TRUE
1581    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1582      the ability (off by default) to read the grid information using MNC
1583    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1584    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1585    o do snap-shot diagnostics at the middle of the time-interval (instead of
1586      at the end).
1587    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1588      new test for AIM with thSIce + slab-ocean
1589    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1590    o move state variable diagnostics to the beginning of the time step ;
1591      (note: still needs some work specially for snap-shot diagnostics)
1592      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1593    
1594    checkpoint57c_post
1595    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1596    o generate new output.txt files on faulks with g77 & the new -ieee option
1597    checkpoint57c_pre
1598    
1599    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1600      update output.txt of exp. global_ocean.90x40x15
1601    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1602      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1603    o add saltFlux(+File) forcing capability with periodicExternalForcing
1604    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1605    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1606    o improvements for the MNC output from DIAGNOSTICS:
1607      - correct handling of the unlimitied dimension
1608      - all dims now have associated coordinate variables
1609      - variables located at U, V, and Corner ("Z") points are now written
1610        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1611        *all* data points are output
1612    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1613    o added pkg/seaice/seaice_monitor.F
1614    o mdsio_readfield.F can now read files visible only to master MPI process.
1615    o pkg/seaice: some test code for ice-modified ocean stress
1616    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1617      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1618      spurious negative numbers for precipitation and humidity.  Will cause
1619      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1620    o pkg/ctrl/
1621      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1622        May be enabled via doPackDiag
1623      *  introduce z-scaling of
1624         + gradient (doZscalePack) and
1625         + control (doZscaleUnpack)
1626    o pkg/mdsio/
1627      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1628      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1629    
1630    checkpoint57b_post
1631    o simplify options in diagnostics_fill arguments (remove weird combinations)
1632    o fix MNC coordinate variables so that they now contain per-face index
1633      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1634      general, EXCH2 grids are only aligned to a "local" coordinate system
1635    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1636    o Implement instantaneous output within pkg diagnostics:
1637      setting a negative frequency in data.diagnostics produces
1638     "snap-shot" output (as opposed to time-average if freq > 0)
1639    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1640      NOTE: change ptracer diagnostics name: use 2 characters to work with
1641            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1642    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1643      becomes the coordinate variable for the 'T' dimension
1644    o add CF-style coordinate variables to MNC
1645      - just a first cut:  numbers are meaningless on the cubesphere and
1646        missing along the T axis but otherwise it works!
1647    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1648    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1649    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1650      this is based directly on what the model compute, so that the content of
1651      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1652    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1653    o clean up build options files for SunOS, in particular
1654      - remove -traditional from xmakedepend
1655      - change -xarch=v9 to -xarch=native for f77
1656      - restore use of make (not gmake)
1657      - add CC=gcc if using g77
1658    o changes per discussion of AM, JMC, & EH3 today:
1659      - move redundant "grid" variables out of "state" -- in preparation of
1660        creating proper CF-style coordinate variables and in recognition
1661        that any/all grid variables can be easily copied (eg. w/NCO) from
1662        the grid files into any of the other NetCDF files
1663      - *always* output grid variables with MDSIO (this will eventually be
1664        changed)
1665      - output MNC grid file if useMNC is true
1666    o every instance of _END_MASTER() has been found and replaced with
1667      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1668      preprocessors
1669    o re-arrange diagnostics pkg initialisation:
1670     - allow each package to extend the available diagnostics list
1671     - add some checking and fix small problems (multi-threaded, ...)
1672     - new S/R diagnostics_fill (replace fill_diagnostics):
1673       look through the short list of active diag. (instead of the long list)
1674       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1675    
1676    checkpoint57a_post
1677    o this set of changes restores TAMC compatibility
1678      tested for global_ocean.90x40x15 adjoint on trough
1679      (what a pain)
1680    
1681    checkpoint57a_pre
1682    o some modifs in tools/build_options for sunos
1683    o call ctrl_pack for ctrl at end for optimcycle=0
1684    
1685    checkpoint57
1686    o add horizontal bi-harmonic viscosity for vertical velocity
1687      - new parameter viscA4W (defaults to viscA4)
1688      - affects only non-hydrostatic code
1689      - to be done: no-slip lateral boundary conditions
1690    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1691    o implement Implicit Vertical advection for pTracers
1692    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1693      (implemented also for implicit vertical diffusion & advection)
1694    o OBCS: extend application of tracer open boundary conditions
1695      to a strip beyond the boundary of width Olx/Oly
1696    o add call monitor to TAF set of required calls (flow directives)
1697      and include in natl_box_adjoint
1698    o untangle a few ifdefs related to cost, ctrl, autodiff
1699      untangel a few ALLOW_ECCO_OPTIMIZATION
1700    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1701      (theta2, salt2 in ecco_cost_weights)
1702    
1703    checkpoint56c_post
1704    o OBCS as control variables
1705      - update ctrl_ad_diff.list, obcs_ad_diff.list
1706      - remove balance of obcs controls from default
1707      - fix index bug nobcs in ctrl_init
1708      - fix dummy fields filen in ctrl_pack
1709      - add dummy weights for obcs
1710    o lsopt: comment out fort.94 output
1711    o optim:
1712      - remove unnecessary header files
1713      - adjusted namelists
1714      - add xerbla.F to Makefile
1715    o exf:
1716      - multiple modifications of exf_check_range
1717      - unit change in exf_init_runoff from [m/year] to [m/s]
1718    o mdsio:
1719      - i/o-vector change debugLevel from debLevA to debLevB
1720    
1721    checkpoint56b_post
1722    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1723      is called from DO_THE_MODEL_IO
1724      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1725      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1726      - clean up PTRACERS_WRITE_TIMEAVE a little
1727    o add another verification experiment that tests both the cfc-pkg and
1728      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1729      reactive tendencies treated inline with regular timestepping
1730    o testreport previously did a lousy job of comparing small numbers, so
1731      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1732      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1733      testreport.
1734    o ptracers_monitor: bug fix for MPI
1735    
1736    checkpoint56a_post
1737    o GCHEM: finish reorganizating the package
1738      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1739        (introduces another 3D-array for each passive tracer, but only if
1740        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1741        gchemTendency is not needed because the timestep is done separately)
1742      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1743      - GCHEM is now---more or less cleanly---separate from PTRACERS
1744      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1745        so clear to me how that should be done in a general way.
1746    o CFC: improve formatting of output in CFC_ATMOS
1747    o PTRACERS:
1748      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1749        that ALL experiments with ptracers enable can be checked. This makes
1750        GCHEM_MONITOR obsolete.
1751      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1752        monitorFreq
1753      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1754    o add PTRACERS (PTR0[1-5]) to testreport output
1755    o exf_check_range:
1756      * default changed to .TRUE.
1757      * will check values for niter0 if debLevA, every timestep if debLevB
1758      * STOP in exf_check_range if 'out of range'
1759      * range chosen generous to allow for potential extema
1760      TBD: a version with stricter range
1761           permitted range would be runtime parameters
1762  o GMredi:  o GMredi:
1763    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1764    - 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 1767  o GCHEM:
1767    - 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
1768      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1769    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1770      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1771        this flag is now only visible within GCHEM-pkg routines.
1772      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1773        be replaced by a 3D array that is computed before thermodynamics; for
1774        this, the tracer ID iTracer had to be included into the parameter list
1775        of ptracers_forcing
1776      - set up forward_step to call gchem_forcing, that will replace
1777        gchem_forcing_int in ptracers_forcing
1778      - cleaning up
1779  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
1780    
1781  checkpoint56  checkpoint56

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