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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.948 by jmc, Sun Jan 27 22:55:34 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/mypackage:
8      - add example of read/write pickup for state-var ;
9      - add entry points to the main code for state-vars diags & write-pickup.
10    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
11      transitions for useExfYearlyFields
12      - add new subroutine that determines the file to read from for
13        use*YearlyFields = .TRUE. and .FALSE.
14    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
15      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
16      subroutines (which could be generated from a template, because they are
17      almost identical), for now they are included in obcs_prescribe_read.F for
18      simplicity
19    o pkg/exf:
20      - add a little more diagnostic to exf_interp_read (in analogy to
21        mds_read_field, can be turned off with debugLevel < debugLevA=1)
22      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
23        ugly but fast by unrolling short inner loops, inserting a unroll=8
24        directive in routine lagran, and splitting a loop and making do while the
25        outermost loop (the latter requires the intoduction of index arrays)
26    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
27    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
28      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
29    o verification/seaice_obcs: updated for restart test and latest options
30    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
31      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
32      for now this is only available for the C-grid code and also within
33      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
34    
35    checkpoint59m
36    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
37      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
38    o gad_som : fix flux output (& diagnostics) to have same units as other  
39      advection scheme fluxes (was previously multiplied by deltaT).  
40    o added verification/seaice_obcs both to test seaice open boundaries
41      and to provide an example matlab scrpt for generating them
42    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
43    o pkg/salt_plume: clean up salt_plume_frac.F to
44      remove redundancy in PlumeMethod 1 and 4
45    o pkg/kpp: added saltplume diagnostics
46    o pkg/obcs and pkg/seaice:
47      - do not set uice and vice to zero when OB*icefile are unspecified
48      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
49      - moved seaice tracer obcs after call to seaice_growth
50    o pkg/salt_plume: added various options for salt plume depth
51      criterion and for vertical distribution of the salt
52    
53    checkpoint59l
54    o pkg/ptracers: new version of ptracers pickup:
55      read meta file and write only fields which are needed to restart.
56      ( same logic as main pickup file ; also using pickupStrictlyMatch )
57    o pkg/seaice:
58      - add timescale for melting due to warm mixed layer as a means of
59        setting SEAICE_availHeatFrac more conveniently
60      - add a CPP-flag/runtime parameter check for flooding algorithm
61      - reformulated availHeat in seaice_growth.F to be independent of AREA
62    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
63      unit changes
64    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
65    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
66      SX vector computer.
67    o pkg/seaice:
68      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
69        seaice forcing fields can now be read only through pkg/exf
70      - removed some unused halos
71    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
72    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
73      or U/VICE from U/VWIND before computing U/VSTRESS
74    
75    checkpoint59k
76    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
77      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
78    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
79      all experiments pass when compile with un-initialised var. checking option.
80    o added pkg/salt_plume
81    o script to test restart (for now, in MITgcm_contrib/jmc_script)
82    o pkg/seaice: new read/write pickup version.
83      read meta file and write only fields which are needed to restart.
84      ( same logic as main pickup file ; also using pickupStrictlyMatch )
85    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
86    o lab_sea.hb87: modify the domain & update output.hb87.txt :
87      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
88      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
89      process. Fixed here by closing the domain at the Northern boundary.
90    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
91    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
92      a set of consecutive levels in/from a 3-D array.
93    o pkg/ptracers:
94      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
95      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
96    
97    checkpoint59j
98    o in pkgs: dic, obcs, offline, rbcs:
99      standard way to compute coeff. for time interpolation between 2 time reccords
100      which retains full precision (& make results less dependent on compiler).
101      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
102    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
103      packages instead of reading ice cover and wind speed separately
104    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
105     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
106      to allow to compile customized code before the update)
107    o cleaning-up:
108      - fix CPP instruction syntax in pkg/obcs
109      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
110        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
111      - fix some threads issue in IO parts.
112    o pkg/dic:
113      - add tons of "_d 0" (--> much better testreports !)
114       and then update outputs of tutorial_global_oce_biogeo
115    o pkg/mom_fluxform:
116      add a special version of momentum advection intended to conserve momentum
117      next to a bathymetry step or a coastline edge. (default = off = #undef)
118    o new read/write pickup version:
119      - for now, only implemented for main (mdsio) pickup file.
120      - write out only what is needed to restart; merge pickup_nh , pickup_ph
121        and main pickup together.
122      - read meta file; read only what is needed to restart; stop if a field
123        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
124        if it make sense (even if the restart is not perfect).
125      - if no meta file, assume that pickup to read corresponds exactly to
126        a pickup that would currently be written.
127      - read pickup written in the old format (until checkpoint59i) if it
128        recognizes an old meta file (no field-list).
129      - add a meta file in exp. which starts from a pickup: 2 cases:
130        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
131         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
132        b) a meta file describing the content of the associated pickup file
133         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
134    o pkg/mdsio & pkg/rw:
135      - new routine to read a meta file ; new set of routine to read
136        Multiple-fields file (with meta file).
137    o added open boundary conditions capability for seaice
138        HSNOW, HSALT, UICE, and VICE
139    
140    checkpoint59i
141    o adjoint:
142      * fix multiDimAdvection adjoint
143        (partial recomputation problem by TAF for fVerT(:,:,kDown)
144        and comlev1 size definition (maxpass vs. max. number of tracers)
145      * verification/global_ocean.90x45x15 adjoint now tests
146        NLFS and multiDimAdvection using DST3 (=30)
147      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
148    o pkg/kpp: add "_d 0" to real constant (if missing);
149      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
150      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
151    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
152      for internal parameters related to restart process (formerly from PARAMS.h)
153      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
154    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
155      as argument. (only atm2d & obcs write_pickup have not yet been updated)
156    o pkg/monitor:
157      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
158      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
159      - account for deep Atmosphere factor and density factor (anelastic)
160    o added open boundary conditions capability for seaice HEFF and AREA
161    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
162      thermodynamics
163      - requires a little reorganization, which affects the testreport results
164        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
165        so that now the conservative form is tested
166      - add a few comments
167    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
168    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
169    o add new diagnostics to seaice: advective, diffusive fluxes (only for
170      multidim-advection, for scheme 2 they are not filled) and transports,
171      thermodynamic growth rates
172    o change units of EmPmR (inside the code, + within coupling interface)
173      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
174      Affects results @ truncation level (cg2d match) and update output of
175       experiments: lab_sea(6), global_ocean.90x40x15(10),
176      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
177      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
178      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
179      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
180    
181    checkpoint59h
182    o pkg/exf:
183      - improve vectorization by moving if-statement out of loops in
184        exf_mapfields, exf_radiation
185      - exf_bulkformulae.F: introduce 2D fields and vectorize code
186    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
187    o testreport:
188      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
189        monitor & update offline_exf_seaice exp. output.
190      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
191    o pkg/seaice:
192      - bug fix in the evp solver: boundary conditions were affected be
193        masking of zMax/zMin (changes results)
194      - minor bug fix in boundary conditions in seaice_calc_strainrates
195        (changes results for no_slip)
196      - seaice_lsr.F: make interpolation of eta dependent on boundaries
197      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
198      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
199        stress formulation and no-slip boundary conditions
200    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
201      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
202    o pkg/seaice: a first HSALT time stepping equation has been checked in
203    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
204      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
205      without requiring DO-IF statements
206    o pkg/thsice:
207      use continuous power-law function for partition of energy between lateral
208      melting/freezing and thinning/thickening ; old code using step function
209      still available with #undef THSICE_FRACEN_POWERLAW
210      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
211    o testreport: change AD testing : check against results/output_adm.txt
212      using same scripts as for forward test.
213    
214    checkpoint59g
215    o adjoint testing: in preparation for changing testreport:
216      - output format: cost and grad written on separated lines
217      - ad output results in directory "results" (instead of "results_ad")
218    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
219    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
220    o pkg/ecco: allow user defined cost function contributions
221    o testreport:
222      Allow to choose (per experiment) the list of tested output variables
223       and the main variable (used to issue a pass/FAIL ) ;
224      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
225      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
226      Also modify printing of summary:
227       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
228       b) echo the list of tested variables in the individual summary.txt of
229          each experiment.
230    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
231      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
232      (but still depend on the tile decompostion of the domain).
233    o pkg/seaice: change a discretization detail to make the B-grid code
234      "more symmetric". This change is likely to remove all "ridges/leads" that
235      where quasi-aligned with the grid in B-grid solutions. It may also be
236      the solution to the stress coupling issues with the B-grid.
237    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
238      remove .cvsignore from input dir. (since testreport no longer run here).
239    o pkg/thsice:
240     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
241     - fix reshaping of sea-ice just after advection:
242       melt all the ice only if ice-volume is too small.
243     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
244       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
245     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
246    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
247      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
248    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
249      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
250      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
251      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
252      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
253      -> update output.txt
254    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
255     this affects truncation error: -> update output.txt of exp:
256      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
257      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
258    
259    checkpoint59f
260    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
261    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
262      a bounded range (in forward mode)
263    o pkg/ecco, ctrl, autodiff and mom_common:
264     internal parameter controls, completements of implementations
265    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
266    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
267      (not seem any difference in testing results).
268    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
269       at face corners.
270    o pkg/generic_advdiff:
271     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
272      loop range indices for computing vertical advection tendency
273      and do the calculation in the interior only (no overlap) ;
274      for now, only implemented for SOM advection (to save CPU time).
275     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
276    o exch2 adjoint
277      First set of changes:
278      - add exch2 hand-written adjoint templates
279      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
280        This will require cleanup in pkg/autodiff/*.F
281        (changed routines currently kept separate in verif. code/)
282      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
283        that used to hide exch2 or cubed-sphere specific code
284        (commented via 'cph-exch2')
285    o pkg/seaice
286      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
287    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
288       output of global_ocean.cs32x15.thsice .
289    
290    checkpoint59e
291    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
292      for B-grid vector (not yet tested) and C-grid vector (<- only used
293      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
294    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
295      (#ifdef ALLOW_SALT_PLUME)
296    o gather_2d/scatter_2d: removed halo regions
297    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
298      scheme and the corresponding test case (under front_relax dir). For now,
299      only available with Skew-flux form and not yet tested in realistic set-up.
300      adjoint: store directives updated, but gradient checks deteriorated,
301      so maybe GM/Redi adjoint is now broken.
302    o seaice adjoint
303      * add AREA, HEFF, HSNOW as control variable
304        (should not change lab_sea results)
305      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
306    o pkg/seaice:
307      * added computation of saltFlux in seaice_growth;
308        For time being, sea ice salinity is assumed constant
309        contribution of snow flooding to freshening of sea ice is neglected.
310        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
311        defaults to 0.0 in order to maintain backward compatibility.
312        Typical values for SEAICE_salinity are 4 to 10 g/kg.
313      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
314      * added SEAICE_availHeatFrac, which specifies fraction of surface level
315        heat content used to melt or grow ice
316      * commented out cap of HICE: it helps keep ice thinner
317      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
318      * applied OBCS T/S mask to HEFFM sea ice mask
319    
320    checkpoint59d
321    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
322     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
323     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
324    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
325     and change default value of parameter "GM_Small_Number";
326     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
327       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
328       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
329    o pkg/ecco: cost function when applying pkg/smooth to controls
330    o pkg/ctrl: add forcingPrecond run time parameter
331    o pkg/seaice:
332     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
333     - fix bug in metric terms of u-equation in LSR solver (implicit part),
334       changes verification/lab_sea
335     - rearrange implicit part of u-equation in LSR solver to make it easier to
336       read, understand, and debug. This causes changes at the truncation level.
337     - fix (serious) bug in the boundary conditions (sign error in the implicit
338       part) of the LSR solver. Changes all LSR results.
339     - fixed problem with HSNOW initialization to avoid thick snow when AREA
340       is initilized with small values - does not change lab_sea results.
341     - added HsnowFile initialization capability
342    o pkg/smooth: addition to model/src and pkg/ctrl so allow
343     initialization of pkg/smooth and application to control vector
344    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
345    o dependencies: pkg/profiles requires pkg/cal
346    o pkg/profiles:
347     - added option ALLOW_PROFILES_GENERICGRID
348         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
349         that interpolation information (grid points and coefficients) is provided
350         within the netcdf input files.
351         -> sample matlab scripts can be found in MITgcm_contrib/gael
352         that allow you to prepare netcdf input files.
353     - also modified: cleaner include statements, cleaner error print statements,
354       cleaner stops when error, and more tests of the netcdf input files consistency.
355    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
356    o pkg/seaice:
357     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
358       requires a new routine: seaice_diagnostics_fill.F
359     - make sure that seaice does not move if not forced (pressure replacement
360       method, Hibler and Ip, 1995), changes results
361     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
362     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
363       It is turned off by default (=-1.), because it changes the results.
364     - make it possible to read AREA from a file, too.
365    
366    checkpoint59c
367    o add S/R and diagnostics for oceanic mixed-layer depth
368    o move GMRedi call after all vertical mixing schemes (including KPP)
369    o pkg/thsice:
370     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
371      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
372    o pkg/obcs:
373     - bug fix for balance code
374    o pkg/seaice:
375      - allow values of SEAICE_elasticParm > 1
376      - add new parameter SEAICE_evpTauRelax as an alternative
377        to SEAICE_elasticParm
378      - make lsr boundary conditions free slip (by default), changes result
379      - add code for no slip boundary conditions for lsr
380      - set minimum of zeta to zero (and not 4e8) (changes results)
381      - add a cap on AREA after advecting AREA if seaice_growth is not called
382    o change calculation of Visbeck K:
383      - no longer depend on tapering scheme; instead, compute slope (limited
384        by GM_maxSlope). this is equivalent to what was comuted before with
385        clipping or linear tappering.
386      - fix vertical averaging (wrong by 1/2 level)
387      - leave the old version (but will not be maintained) within
388        #ifdef OLD_VISBECK_CALC / #endif
389      - update output of exp. ideal_2D_oce
390    o change error catch in calc_r_star to improve vectorization
391    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
392      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
393    o adjoint:
394      Re-organized adjoint checkpointing according to Matt Mazloff
395      (but with modifs/completions/cleanups)
396      Storing is now bundled into large arrays to optimized I/O
397      (and second step in cleanup of the_main_loop)
398    
399    checkpoint59b
400    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
401      - export/import (between ocean & coupler) fields needed for ocean DIC.
402    o pkg/seaice:
403      - get rid of three more exchanges seaice_calc_viscosities (required
404        different loop boundaries in seaice_lsr and seaice_ocean_stress)
405      - bug fix in seaice_ocean_stress (update of lab_sea required)
406      - reduce loop boundaries to necessary minimum also in seaice_evp
407      - go back to the old way of computing deltaC/Z as the adjoint likes that
408        better
409    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
410      passive tracer to an Age Tracer) + update output.txt
411    o pkg/exf:
412      - implement A-grid / C-grid selection for wind-stress input files.
413      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
414      for now, in exf_bulk_largeyeager04.F only :
415      - change implementation for case where windspeed + 2. components wind-stress
416        are read-in. AND use rhoConstFresh to convert evap.
417    o pkg/seaice:
418      - use correct EXCH_UV for wind-forcing (on A-grid).
419      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
420        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
421    o pkg/exf:
422      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
423      EXF_INTERPOLATION:
424      - merge global_with_exf/code version of exf_interp_read.F
425        to the main code ;
426      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
427        reading the file ; Important: This options needs to be defined to recover
428        previous code.
429        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
430      - no longer loose real*8 precision along the way when using exf_iprec=64.
431    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
432      - change discretisation of evp-solver in order to avoid another exchange
433        (changes lab_sea) and clean up a little
434      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
435        help the adjoint (this also changes the results slightly)
436      - add a few "_d 0" where they had been missing in seaice_evp.F
437      - cleaning up: remove unused seaice_calc_rhs.F
438    o pkg/exf: some cleaning-up:
439      - change various "constants" into runtime parameters
440      - cleaned-up Large&Yeager04 routine which should eventually
441        replace exf_bulkformulae.F (changed names of S/R and CPP)
442        and merged various ALLOW_ATM_WIND options
443     only used with thsice pkg (in thsice_get_exf.F):
444      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
445        which are used when useStabilityFct_overIce=TRUE (= the default)
446      - change default values of ice & snow emissivity and scale downward LW
447        by ice & snow emissivity.
448    o pkg/thsice:
449     fix few little problems, in thsice_calc_thickn.F:
450      - growth vertically (and not laterally) if iceFrac == iceMaskMax
451      - melt only laterally if hIce < hThinIce (as the comments say)
452      and in thsice_extend.F:
453      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
454      - start to form ice as soon as the minimum ice-volume is reachable.
455     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
456      and cpl_aim+ocn
457    o pkg/kpp
458     - move computation of surface related input fields to KPP into a new
459       subroutine kpp_forcing_surf.F
460     - remove wrong (within bi,bj loops) EXCH calls.
461     - little cleaning (add argument myThid in last position, cvs header ...)
462     - for now, fix conservation problem by exchanging KPPviscAz (may not
463       be the best fix)
464    o pkg/seaice
465     - check for inconsistent evp parameter/cpp-flag combination
466     - remove leftover errIO flat for obsolete name list error handling
467    o OpenAD
468     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
469    
470    checkpoint59a
471    o pkg/seaice: some parameter clarifications and a little bit of clean up
472    o pkg/thsice: rename run-time parameters:
473       himin       -> hIceMin
474       himin0      -> hThinIce
475       hihig       -> hThickIce
476       i0          -> i0swFrac
477       transCoef   -> bMeltCoef
478       frac_energy -> fracMelting
479      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
480       with default values (for now) that do not change the results.
481      remove old version of thsice vars advection in pkg/seaice.
482    o in FFIELDS.h:
483      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
484      - make pLoad & sIceLoad always available (but still only used if
485         ATMOSPHERIC_LOADING is #define).
486    o pkg/kpp: replaced _KPP_RL with _RL
487    o bug fixes for vertical diffusivity computations when both KPP and
488        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
489        are no longer updating the vertical diffusivity array
490        (passed as argument) but are (re-) setting those arrays.
491    o pkg/seaice: fix bug in evp solver, while doing that
492      - change (improve?) discretization of stress computations for both
493        cgrid-lsr and evp solver
494      - add a new routine to compute strain rates
495      - the above changes lab_sea results
496      - add no slip conditions for evp solver (off by default), lsr-version
497        may follow
498      - fix exchange for shear at Z-points (does not change lab_sea)
499      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
500        (to force the user to pick a time step since there is not "safe" way
501        of choosing it)
502      - add principal stress diagnostics
503      - rearrange fields for evp a little to avoid having to call a: too many
504        exchanges and b: exchanges for stress trensor components which we do
505        not have.
506      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
507        of evp, complete rewrite for lsr case (latter is does not yet work
508        in all cases)
509    o pkg/kpp: add code to have mixing in shelf ice caverns
510      - add myThid to all kpp routines (long overdue)
511    
512    checkpoint59
513    o pkg/exf:
514      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
515        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
516      - move exf header files from lower_case.h to UPPER_CASE.h ;
517        add missing cvs Header & Name
518      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
519      - add namelist param. selectStressGridPosition, exf_monFreq
520      - retire many _CLIM routines, and remove data.exf_clim
521        + params moved to data.exf
522        + climsst, climsss now handled by exf_set_gen, i.e.
523          climss?period=0 refers to constant field,
524          climss?period=-12 to monthly forcing
525      - split up namelists in data.exf
526    o pkg/seaice:
527      - remove seaice_exch and seaice_exch_uv
528      - remove superfluous exchange of theta
529      - add myThid to seaice_budget_ocean/ice
530      - add new interface for atmospheric wind forcing (C-grid only)
531        + new routine
532        + two new field (taux, tauy for stress over ice)
533        + removed one global field (DAIRN) for C-grid case only
534    o pkg/thsise
535      - 2nd set of modifs for thsice adjoint in conjunction with exf
536    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
537    
538    checkpoint58y_post
539    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
540      vertical diffusivity, similar to that in MOM4; turned on using
541      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
542      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
543    o Added capability for 3D specification of background vertical diffusion
544      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
545      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
546      "data" file that contains the 3D vertical diffusivity coefficients.
547    o ice dynamics (pkg/seaice) with thsice thermodynamics:
548      - add code within pkg thsice to advect & diffuse sea-ice fields
549      similar to (and will replace) what has been added in  seaice_advdiff.F,
550      but: - conserving Mass, Heat & Salt.
551           - better when using non-linear advection scheme (not yet fully tested)
552           - can also be used in atmospheric set-up (for now, only the diffusion).
553    
554    checkpoint58x_post
555    o IO option for global-file compact format:
556      - add options when generating topology (utils/exch2/matlab-topology-generator)
557      - add I/O capability (pkg/mdsio).
558      - adapt utils/matlab/rdmds.m to read this format.
559      for now long-line format not yet supported by pkg/mdsio (& exch2).
560    o shelfice: add a few diagnostics
561    
562    checkpoint58w_post
563    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
564      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
565      (and replace horiVertRatio in NH code).
566      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
567                         and tutorial_plume_on_slope (sensitive to truncation)
568    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
569      directly to drive seaice model (C-grid only)
570    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
571     - reintroduce computation of wind from stress,
572     - compute tau (in exf_bulkformulae.F) from windstress averaged to
573       mass points to avoid tau = 0
574     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
575    o rdmnc.m: make it work with "global" files created with gluemnc
576    o rdmnc.m : some improvements in dealing with singleton dimension
577      (tested on all testreport mnc output files).
578    o genmake2: disable pkg/profiles if netcdf test fails.
579    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
580    o move call to cal_readparms up to make calendar parameters/variable available
581      to all packages
582    
583    checkpoint58v_post
584    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
585      useDynP_inEos_Zc tested.
586    o pkg/exf: changes to properly interpolate/mask/scale initial fields
587    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
588      and portions thereof.  See read_cs.txt for description and examples.
589    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
590      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
591      following the great-circle arc between those 2 points.
592    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
593      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
594    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
595     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
596     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
597     - still needs work (not working with some options ; efficiency to improve)
598       and serious testing.
599     - use this scheme for temperature & salinity in 2 advection test exp.:
600       advect_xy & advect_xz, respectively.
601    
602    checkpoint58u_post
603    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
604    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
605    o testreport: add option "-skipdir" to skip some test.
606    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
607      momentum calculation.
608    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
609    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
610      remove checkpoint.F and the_correction_step.F (no longer used);
611      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
612    o add option (linFSConserveTr) to correct for tracer source/sink due to
613      Linear Free surface
614    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
615    o pkg/thsice: fix reading mnc-pickups
616    
617    checkpoint58t_post
618    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
619    o pkg/mdsio:
620     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
621       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
622       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
623     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
624     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
625       either MDS_READ_FIELD or MDS_WRITE_FIELD )
626     - new S/R (to replace MDSWRITEMETA), which allows to write more
627       informations (variable names, time ...) to meta files.
628     - modify rdmds.m to give back the meta file content.
629    o pkg/diagnostics: change vertical interpolation to be safer, and more
630       flexible (define p-levels to interpolate to in data.diagnostics);
631      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
632       diagnostic pointer.
633    o pkg/seaice: more cleaning up of seaice_growth, added many comments
634    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
635    o fix multi-category seaice:
636     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
637       SEAICE_MULTICATEGORY
638     - fix short wave heat flux
639    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
640       and allow to use EVP solver. Change forward lab_sea: test both EVP
641       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
642    o Initial check-in of lab_sea adjoint
643      (very similar to natl_box_adjoint/code_seaice)
644      * used C-grid and EVP solver
645      * used KPP, GM/Redi
646      * uses inAdExact=.TRUE.
647      * gradient checks fail for both ADM and TLM
648        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
649        f.d. gradients actually seem more problematic than ADM, TLM gradients;
650        issue is related to forward mismatch between g77 an ifort
651    o pkg/seaice: overhaul of thermodynamics
652     - growth.F and groatb.F are replaced by new routine seaice_growth.F
653     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
654     - move a few global fields out of SEAICE.h into seaice_growth.F and
655       make them 2D (FICE/QNETO/ ...)
656     - remove FO (it is the same as QNETO)
657     - introduce a few local fields to avoid modifying external fields such
658       as atemp, etc.
659    
660    checkpoint58s_post
661    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
662      changed exf_set_gen.F so that
663        genperiod=0 means input file is one time-constant field and
664        genperiod=-12 means input file contains 12 monthly means
665    o CG2D: use pre-computed solver main-diagonal (stored in common block);
666      this affects truncation error ; generate new output file for exp. which
667      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
668        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
669        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
670        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
671        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
672        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
673    o start implementation of deep-atmosphere and anelastic formulation
674    o verification: remove 2nd copy of input files and use script "prepare_run"
675      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
676    o mom_common/vecinv/fluxform: fix a few initialisation isssues
677    o profiles: fix for multithreaded case
678    
679    o diagnostics: rename few diags:
680      s/'PRESSURE'/'RCENTER '/g
681      s/'TICE    '/'oceFreez'/g
682      s/'TAUX    '/'oceTAUX '/g
683      s/'TAUY    '/'oceTAUY '/g
684      s/'SWFLUX  '/'oceQsw  '/g
685      s/DIFx/DFxE/g
686      s/DIFy/DFyE/g
687      and add few ocean-forcing diagnostics:
688      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
689    o modifications to pkg/seaice/growth.F and budget.F, which change results of
690      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
691      as actual snow thickness.  It now refers everywhere to effective snow
692      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
693    
694    checkpoint58r_post
695    o modifications to pkg/seaice/growth.F, which change results of
696      lab_sea experiment: fixes pertain to melting snow over open water, to
697      masking EVAP under sea ice, and to using the correct AREA variable for
698      computations of EVAP, PRECIP, HSNOW, and GHEFF
699    o add ability to read bathy, salt, and theta using MNC (off by def)
700    o add flooding algorithm and advection of HSNOW for pkg/seaice;
701      both are turned off by default and do no change any results
702    o seaice advection with pkg/thsice: a step toward the use of non-linear
703      advection scheme, but #ifdef or commented out for now (requires more EXCH).
704    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
705      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
706      in natl_box (affects results @ truncation level: update output.txt)
707    o multi-threading and IO:
708      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
709      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
710        (needed to work with SingleCpuIO): tested in all verif. exp.
711    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
712      affects the results (but none of the verification test uses this scheme).
713    o Adding some pkg/diagnostics capability to pkg/seaice
714      (will certainly be subject to changes)
715    o ctrl: adding new control variables:
716      lwflux, lwdown, evap, snowprecip, apressure, runoff
717    
718    checkpoint58q_post
719    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
720      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
721      high_res_cube configuration by 4% on Columbia.
722    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
723      add (in global_with_exf/code) a version of EXF_INTERP_READ without
724      dynamical allocation (seems to work in multi-threaded).
725    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
726      single CPU io) so that TAF does not have to see EESUPPORT.h
727    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
728    
729    checkpoint58p_post
730    o obcs: stop if obcs is used with useCDscheme = .true.
731    o shelfice:
732     - fix a sign error so that no slip at shelfice interface works
733     - remove stop for combination non-hydrostatic code and shelfice. That does
734       not mean, that the results are correct, but at least they are numerically
735       stable
736    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
737    o added adjoint exch routined for all exch*3d* routines
738      and updated flow directives
739    
740    checkpoint58o_post
741    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
742      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
743    o change controling S/R for writing pickup file (new S/R do_write_pickup)
744      and clean-up reading/writing of pickup files.
745    o fix local version of read/write pickup (NH part) in rotating_tank/code
746    o simplify EXCH interface:
747     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
748     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
749    o added the regrid package
750    o shelfice:
751     - add a simple boundary layer scheme to reduce noise
752     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
753    
754    checkpoint58n_post
755    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
756       local variable (not in common block).
757    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
758      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
759      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
760        to work with SingleCpuIO.
761    o add "_d 0" to real constant of pkg/cfc subroutines ;
762       update exp. cfc_exemple & tutorial_cfc_offline output files.
763    o multi-threading and IO:
764      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
765        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
766      - barrier before and after reading.
767      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
768      - avoid using MDS_WRITELOCAL for LAND pkg output.
769      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
770        common-block variables ; Allows multi-threading with master-thread IO.
771    o change default MAX_NO_THREADS from 32 to 4 ;
772      and stop cleanly when MAX_NO_THREADS is too small.
773    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
774    
775    checkpoint58m_post
776    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
777       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
778    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
779       keep global_ocean.90x40x15 (for AD testing) with former secondary test
780       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
781    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
782        add MITgcm_tutorials (= code + all the tutorials)
783    o ecco, option to compute cost for total ssh (mean+anom)
784    o consistent with addition of ptracer and ssh in pkg/profiles
785    o profiles: adding ptracer and ssh
786    o testreport: change multi-test output-file name
787      (from output.txt.{name} to output.{name}.txt)
788    o profiles: now ok for mutli-tiles case
789    o seaice: add 4 parameters for different advection schemes for area,
790      (effective) seaice thickness, enthalphy, and snow height. Their default
791      is the standard parameter SEAICEadvScheme
792    o calc_gw:
793     - add cosFacU in zonal viscous flux (harmonic.visc.).
794     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
795       of tutorial_plume_on_slope.
796    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
797    o calc_gw: true flux-form, account for horizontal grid spacing.
798      update rotating_tank results, but not plume_on_slope (affected at
799      truncation level, 11 digits).
800    
801    checkpoint58l_post
802    o calc_gw:
803     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
804     - remove side-drag for now (need to fix it); update plume_on_slope results.
805     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
806    o commit code to make SST/SSS weights spatially variable
807      (based on either variable in-situ or variable initial T/S weights)
808    o pkg/ecco:
809      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
810        now based on horizontally varying weights wthetaLev, wsaltLev
811      * cost_averagesflags now returns year indices in addition to day, month
812      * sflux balance is performed on annual basis
813        (sflxumm, sfluxmm2, bal_sfluxmm)
814      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
815        including separate counting and multipliers
816    o pkg/rbcs
817      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
818    
819    checkpoint58k_post
820    o testreport:
821     - always build in dir. "build" (if not there, mkdir build instead of building
822       & running in input)
823     - run in dir run (if it exists), in build otherwise.
824     - call prepare_run (if input/prepare_run exists)
825     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
826    o pkg/exf modifications to interpolation and rotation routines for more
827       reasonable treatment of North Pole singularity: for tracers North Pole
828       value is set to northernmost zonal-mean value, for zonal velocity it is
829       set to zero, and for meridional velocity it is set to northernmost value.
830    o pkg/exf/exf_check_range.F
831     - add tile index to diagnostics and move stop statement to the very
832       end of the routine.
833    o pkg/diagnostics: (diagnostics_main_init.F)
834      define title of isomorphic variables according to the current config.
835    o pkg/thsice with pkg/seaice dynamics:
836    - fix domain of computation (interior only, required for exf) and do exchanges
837    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
838    o towards a standard way of dealing with multi-threading in MONITOR
839      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
840    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
841       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
842    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
843    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
844    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
845       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
846    o tracer advection:
847     - clean-up and simplify calc_common_factors.F
848     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
849       advection subroutine (but still not used within DST advection S/R)
850    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
851    
852    checkpoint58j_post
853    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
854      from file (collects calls previously in FORWARD_STEP)
855    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
856    o adjoint store dir. adjusted accordingly
857    o genmake2
858      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
859    
860    checkpoint58i_post
861    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
862      on wind stress (SEAICEstressFactor defaults to 1.)
863    o Total number of Timers is finite (<=40): comment out 2 non-essential one
864      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
865    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
866      on CS-grid: no longer loosing mass.
867    o exf & curvilinear-grid: no longer modify longitude xC & xG.
868    o pkg/ggl90: fix sloppy output and fix a bug
869    o pkg/seaice: added SEAICEuseEVPpickup parameter
870      - Set to false in order to start EVP solver with
871        non-EVP pickup files when using SEAICEuseEVP
872      - fix sign error in diffusion in seaice_calc_rhs
873    
874    checkpoint58h_post
875    * Modifications for bottom topography control
876      o replace hFacC by _hFacC at various places
877      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
878      o add non-self-adjoint cg2d_nsa
879      o update autodiff support routines
880      o re-initialise hfac after ctrl_depth_ini
881      o works for 5x5 box, doesnt work for global_ocean.90x40x15
882    * Adding verification for 5x5 box (4-layer) bottom topography control
883    
884    checkpoint58g_post
885    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
886       used for mean seasonal cycle, mean diurnal cycle); add an example
887       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
888    o pkg/ggl90:
889      - add parameter (minimum surface kinetic energy)
890      - fix bug (avoiding division by zero)
891    o couple pkg/thsice to pkg/seaice:
892      - modify advection in seaice to accomodate new scalar fields to be advected
893      - only muliDimAdection scheme work with seaice/thsice
894      - mapping of thsice-variables to seaice-variables, back and forth
895      - does not break the verification experiments, but does not give the
896        desired results either
897    o pkg/seaice
898      - make (default) second order advection a bit less confusing?
899    
900    checkpoint58f_post
901    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
902      to pkg/seaice):
903      - new routines thsice_map_exf and thsice_get_exf provide the interface
904      - add an additional formal parameter to thsice_solve4temp
905    o pkg/exf:
906      - add new fields wspeed, snowprecip (to be able to couple to thsice)
907      - correct Stefan-Boltzmann constant
908      - new parameter for longwave surface emittance
909      - separate some stuff from exf_bulkformulae into new routines  
910        exf_radiation, exf_wind
911      - add new parameters and constants: longwave emissivity for ocean, ice
912        and snow, evaporation parameters over ice
913      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
914        either wind from stress or stress from wind
915    o pkg/thSIce:
916    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
917    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
918       and THSICE_CALC_THICKN
919    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
920    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
921      to make debugging easier.
922    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
923    o pkg/bulk_force:
924      - clean-up comments and parameters ;
925      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
926    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
927      generate new output for test-experiment: aim.5l_cs.thSI
928    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
929      testreport accordingly
930    
931    checkpoint58e_post
932    o SEAICE_CGRID adjoint done
933    o R_STAR adjoint implemented.
934      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
935      * need to sort out init. of h0facc, etc.
936    o Make pkg/profile fully independent of ecco,cost, etc. stuff
937      to be able to use it in pure forward.
938    
939    checkpoint58d_post
940    o upgrade simple test-experiment to tutorial example:
941     step.1: duplicate the experiment and (step.2) will remove the old copy.
942      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
943      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
944      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
945      tutorial_global_oce_biogeo    <- copy of dic_example
946      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
947      tutorial_plume_on_slope       <- copy of plume_on_slope
948      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
949      tutorial_global_oce_optim     <- empty for now (David ?)
950      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
951     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
952    o correct a sign problem in cost_scat.F
953    o obcs and ptracers: fix boundary conditions for advections schemes
954      with larger stencil
955    o thsice adjoint: start
956    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
957      completeness
958    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
959      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
960    o ptracers adjoint:
961      * avoid extensive recomputatations
962      * fix missing re-init. of gptr (missed by TAF)
963    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
964      me to turn off the excessive output to STDOUT that this package produces
965    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
966      and add those terms in Vector-Invariant formulation.
967    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
968      if the control period (xx_hfluxperiod etc) is 0
969    o in profiles pkg, clean routines and fix details
970    o in ecco pkg, reading ssh data:
971      fix problem in case the model does not start at iter0=0
972    o fix mnc-pickup/restart for ptracers
973    o new package prifiles:
974      code to compute profile-based cost by Gael Forget
975      (modifs in ecco, ctrl, autodiff)
976    o Benign bug fix in initialization (spotted by M. Mazloff) of
977      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
978    
979    checkpoint58c_post
980    o adjoint: finish NLFS adjoint and provide reference output in
981      verification/global_ocean.90x40x15/results_ad_nlfs
982    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
983      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
984      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
985      with SEAICE_CGRID defined.
986    o move calendarDumps from "data" to "data.cal" and clean-up the code
987      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
988    o add useEXF & useCAL flags (for now, set in hard-coded way)
989    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
990      (were missing in NH mode, and wrong in quasihydrostatic mode).
991      waiting for Chris updated version of calc_gw to add those CALLs.
992    o fix bug in quasihydrostatic S/R ;
993      add a test for this option: global_ocean.90x40x15.qshyd
994    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
995      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
996    o add on/off flag useOffLine for package OFFLINE
997    o seaice:
998      - modify advection so that it works also on the C-grid
999      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1000        problem in multi-tile runs with C-grid
1001      - add flags for clipping ice velocities and/or masking solver forcing
1002      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1003        C-grid solver
1004      - added a few comments to seaice_diffusion.F
1005      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1006        are now exclusive)
1007      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1008        required re-ordering the code a little:
1009       + make DAIRN global variable (defined in SEAICE)
1010       + move computation of the viscosities eta and zeta into a new separate
1011         routine (because I need to recompute them in seaice_ocean_stress.F)
1012    
1013    checkpoint58b_post
1014    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1015      update output.txt of exp. aim.5l_cs.thSI
1016    o various mnc cleanups and improvements:
1017      + shrink lookup tables by factor of ~4
1018      + better error reporting when running out of lookup space
1019      + able to handle longer path/file names (up to 500 chars)
1020    o adjoint:
1021      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1022      - TBD: "hidden" mom_vecinv recomp. in dynamics
1023    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1024     (allow to differentiate between forcing components using new integer flags:
1025      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1026     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1027    o ecco
1028      - enable trend removal from SSH anomaly obs.
1029    o adjoint
1030      - a fix for PmEpR when #undef EXACT_CONSERV
1031      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1032      - try to fix "hidden" recomp. in forward_step for NLFS
1033        (NLFS seems broken sometimes after I checked it in)
1034    o seaice:
1035     - add c-grid version of the dynamic solver:
1036       + three new routines that are the c-grid substitute lsr, dynsolver
1037         and ostres
1038       + put a few fields that were local to dynsolver into global common
1039         blocks, so that I can move the computation of stresses etc into
1040         seaice_lsr (saves coding but may break the adjoint).
1041     - replace more hardwired parameters by runtime parameters
1042     - add ice masks that mask the rhs of the implicit solvers where there
1043       is no ice (commented out in seaice_dynsolver, because i am not sure
1044       if this works properly), eventually this should replace the clipping
1045       of ice velocities in seaice_dynsolver to +/-40cm/s.
1046    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1047      include it only where its needed
1048    o move balancing of fluxes before the call of external_forcing_surf
1049    o seaice:
1050      - correct units of turning angles (now they are really in degrees)
1051      - move computation of GWATX/Y out of main routine into dynsolver
1052      - initialize GWATX/Y in seaice_init
1053    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1054      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1055    o seaice: add runtime flags for turning angles (default to zero)
1056    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1057      and trend from exf forcing and ctrl control adjustments
1058    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1059      (since checkpoint57x_post)
1060    o change the default rotation period to 86164.s = the Earth rotation
1061    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1062      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1063    o seaice advection: add code for choosing between the default (2nd order
1064      central differences) and multiDim advection schemes provided by
1065      pkg/generic_advdiff
1066    o seaice:
1067      - removed all references to SEAICE_GRID.h fields from
1068        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1069        (cubed-sphere configuration will change a little)
1070      - grid computations in seaice_init are obsolete now.
1071      - cleaned up code a little so that is easier to read (hopefully).
1072      - added new (better?) discretizations of default advection and diffusion
1073        (turn on with SEAICEuseFluxForm)
1074      - replace 1 in 3d global fields by kSurface in growth.F
1075      
1076    checkpoint58a_post
1077    o seaice:
1078      - bug fix in advect.F
1079    o shelfice:
1080      - separate shelfice load anomaly from pload (breaks with time
1081        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1082        Its default is 0., but it may be computed more cleverly from (unknown)
1083        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1084        done offline. A good approximation of the pressure load anomaly is
1085        necessary to avoid large initial adjustment processes underneath
1086        deep-reaching shelfice.
1087      - small fix in ISOMIP shelfice_thermodynamics
1088      - add more sophisticated thermodynamics of Hellmer (1989), this is
1089        now the default
1090      - give a few constants more intuitive names
1091    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1092      if bulk formulae are used in long integration (especially EmPmR). Turn
1093      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1094      if balancePrintMean, the imbalance that is substracted is printed to
1095      STDOUT.
1096    o fix bug (typo) in obcs_apply_eta.F
1097    o add a new package shelfice which enables us to model the circulation
1098      underneath shelf-ice with draughts of hundreds of meters.
1099     - works
1100     - to do: + include improved thermodynamics
1101              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1102                instead of new field kTopC
1103              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1104                instead of new field R_shelfIce and new code in ini_depth.F
1105                and ini_mask_etc.F?
1106              + adjust vertical mixing schemes?
1107    o seaice pkg:
1108     - add a cpp-flag to include a simple formula for a salinity dependent
1109       freezing point of sea water at the surface
1110     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1111       meridional stresses are now different (and hopefully correct)
1112    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1113       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1114       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1115    o pkg/diagnostics: add options and parameters for regional-statistics
1116       diagnostics ; define regions by reading a region-mask from a file
1117       (might add other options later)
1118    o pkg/bulk_force:
1119     - add option and parameters to use AIM surface-flux formulae.
1120     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1121       others forcing fields (defined in PARM05, parameter file "data") are loaded
1122       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1123     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1124     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1125     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1126       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1127     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1128    
1129    checkpoint58
1130    o add "--embed-source" option to genmake2 which, when the supporting
1131      tools can be compiled (as determined by genmake2) will turn on the
1132      embed_files package which then embeds the entire MITgcm source code
1133      (*.[fFhc] + Makefile) used for the build within the executable
1134      - requested by CNH but off by default
1135      - adds a paltry <9MB to the mitgcmuv executable in most cases
1136      - only writes the output when useEMBEDSRC in eedata is true
1137    o clean up 3-dim. relaxation codes:
1138      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1139      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1140      * Thanks to Tom Haine for testing!
1141    
1142    checkpoint57z_post
1143    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1144      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1145    o fix the pickup behavior for obcs in combination with ptracers
1146    o fix a bug in ptracers_external_fields_load
1147    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1148      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1149    o transfered surface NH pressure to eta field (if exactConserv).
1150    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1151         and update lab_sea output.txt file.
1152    o completing 3-dim. relaxation code: additional term
1153         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1154      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1155      * At compile time, in "EXF_OPTIONS.h" set
1156          #define  ALLOW_CLIMTEMP_RELAXATION
1157          #define  ALLOW_CLIMSALT_RELAXATION
1158      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1159          tauThetaClimRelax3Dim = 15552000.0,
1160          tauSaltClimRelax3Dim  = 15552000.0,
1161      * 3 cases:
1162          1) Use a constant-in-time 3-dim. field
1163          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1164          3) Real-time relax. to time-evolving prescribed field
1165    o Adding Laplacian-type smoothness constraint on
1166      initial and boundary (forcing) controls (ic, bc)
1167      * enable at compile-time via
1168        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1169      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1170      * Absolute scale somewhat unclear so far
1171      * no area weighting was included since no other cost term does so far
1172    
1173    checkpoint57y_post
1174    First step for a NLFS adjoint
1175    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1176    o new init. routines for calc_r_star, calc_surf_dr
1177    o still need to deal with ini_masks_etc
1178    o testreport seemed happy
1179    checkpoint57y_pre
1180    
1181    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1182    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1183    o add new offset feature to offline pkg (plus minor cleanup)
1184    o cfc fixes for final year of integration
1185    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1186      be in GCHEM_OPTIONS).
1187    
1188    checkpoint57x_post
1189    o fix testreport Pb in multiple test experiment.
1190    o cleanup our namelist syntax in verification:
1191      - make it more F95 standards compliant (some work still needed)
1192      - allows the vast majority of our tests to work with gfortran
1193    o Non-Hydrostatic:
1194     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1195     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1196    o Allow to apply AB on T,S rather than on AB(gT,gS):
1197     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1198     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1199       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1200     - need a "clever" read_pickup to restart from the other AB formulation
1201    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1202    o remove some unused variables (reduces number of compiler warnings)
1203    o adjoint
1204      * Disable useVariableViscosity for adjoint for time being
1205        (there are a number of extensive recomputations)
1206      * Initialize certain variables needed for adjoint
1207    
1208    checkpoint57w_post
1209    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1210                 fix the singleCpuIO RS version of MDSWRITEFIELD
1211       and add a WARNING if using globalFiles=T with multi-processors.
1212    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1213      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1214    o tracer advection scheme:
1215      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1216       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1217       was not very convenient).
1218      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1219       (further tests needed for the implicit DST & Flux-Limiter schemes).
1220    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1221      and sRef for convenience, handy, when you want to initialize
1222      ptracers in a large domain with a constant non-zero value. Also,
1223      untangle ptracers_init.F a little.
1224    
1225    checkpoint57v_post
1226    o change dome exp. to use variable viscosity in side-drag terms.
1227    o remove all the files from the cfc_offline test since they are now
1228      incorporated into tutorial_cfc_offline which has been producing
1229      identical results for a few days of testing
1230    o add new parameter: sideDragFactor to enable half-slip-side BC
1231      and change side-drag S/R to use viscosity from mom_calc_visc
1232      (can switch back by setting sideDragFactor=0.); affects results at
1233      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1234       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1235    o vorticity & strain are now computed without masking, to account for
1236      no-slip-side BC in variable viscosity calculation ; mask is applied
1237      anyway later on, before computing advection/coriolis terms.
1238    o modify exp4 to test new obcs support for reading from external files
1239      and for passive tracers
1240    o fix behavior of ptracers_monitor when monitor output is written to a
1241      netcdf-file; still not independent of monitor.F (writes in the same
1242      file).
1243    o change default value of tRef (put a uniform, meaningful value for ocean
1244      & atmos) and initialize sRef (was missing, as Martin mentioned).
1245    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1246      to be proportional to enstrophy dissipation length.  Thus,
1247       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1248      This is now consistent with Smagorinsky and with the manual.
1249    
1250    checkpoint57u_post
1251    o OBCS and PTRACERS: add open boundary support for passive tracers
1252      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1253        OB-values from file; this is not different from the way theta and salinity
1254        are treated
1255      - however, Orlanski-radiation conditions are not supported, and the model
1256        will stop if you use pTracers and Orlanski at the same time.
1257      - beefed up the rountine obcs_external_fields_load: now only those open
1258        boundary values are overwritten with values from files for which there
1259        are really files, otherwise the OB-fields remain untouched. This makes
1260        it possible to use different OBs at different ends of the domain (as
1261        with EXF)
1262    o reduce number of exch calls in shap_filt (s2).
1263    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1264      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1265    
1266    checkpoint57t_post
1267    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1268    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1269      same truncation, independent of the face number: affects affects several
1270      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1271    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1272      note that biharmonic viscosity + no-slip was not tested in any experiment.
1273    o fix bug in non-linear free-surf side-drag ; generate new output for
1274      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1275    o make mnc honor the writeBinaryPrec flag for most kinds of output
1276    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1277    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1278      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1279    o add brackets in multi-terms sum to get same truncation, independent of
1280      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1281      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1282    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1283      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1284      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1285      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1286      Suggested values of viscosity parameters found in mom_calc_visc.
1287      Many new viscosity diagnostics available.
1288    
1289    checkpoint57s_post
1290    o Add clearing-house for viscosity calculations, mom_calc_visc and
1291      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1292      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1293      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1294      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1295      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1296      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1297      ViscAhStrain and viscAhTension are now retired.
1298    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1299    o In response to JMC's bug report, genmake2 now ignores any soft-links
1300      that it finds in the *current* directory when searching for files.
1301      Soft-links found in any other source directories will still work as
1302      they did before.
1303    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1304      a C routine to unlimit the stack size
1305    o mnc-ify pkg/aim snapshot vars
1306    o mnc-ify pkg/land as requested by Daniel
1307    o various changes to mnc including:
1308      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1309      - output can now be grouped so that all files within a group
1310          change the ITER portion of their names in lock-step together
1311      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1312          and works with both EXCH1 and EXCH2 (but needs more testing)
1313      - writing works for all verification test cases w/ g77 on Linux
1314    
1315    checkpoint57r_post
1316    o make MNC variable initialization happen earlier
1317    o add diagnostics for (almost) each term of the momentum Eq.
1318    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1319    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1320    o remove MINIMAL_TAVE_OUTPUT option ;
1321      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1322    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1323      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1324    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1325    o add time-dependent SST, SSS control
1326    o cost terms in ecco/ modularized (new cost_generic.F)
1327    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1328    o new infrastructure for seaice model vs. obs misfits in seaice/
1329      * driver from the_main_loop.F is seaice_cost_driver.F
1330      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1331      * gradient check in Exp. 6a of natl_box_adjoint/
1332    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1333      (see README file)
1334    
1335    checkpoint57q_post
1336    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1337    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1338      - bug was reported by Jean-Michel and Ian Fenty
1339    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1340      update exp. cpl_aim+ocn output.
1341    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1342      Needed for high-res. runs with large global files
1343      to be able to limit tapelev size
1344    o Changed some tests for adjoint:
1345      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1346      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1347      * global_ocean.90x40x15/ back to default 3-level checkpointing
1348    o Modifications to enable scripted COMMON to MODULE conversion
1349      * verification/OpenAD/code/ has necessary scripts and description;
1350      * converts, compiles and runs successfully;
1351    
1352    checkpoint57p_post
1353    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1354    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1355      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1356    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1357    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1358      (was already the case for dissipation with mom_vecinv,
1359       and also the case for grad.PhiHyd when staggered-timeStep)
1360      This will allow to put dissipation out-off the AB time-stepping.
1361     Unfortunately, affects truncation error. Update output of exp. that "fails"
1362      (cg2d matching number) and leave the others for later: front_relax(10),
1363      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1364      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1365    
1366    checkpoint57o_post
1367    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1368      (2) its ready to be documented during the 20050801 DocFest
1369    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1370      for ideal_2D_oce and lab_sea on linux_ia32_g77
1371    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1372      in global1x1_tot/code_seaice_adj to access indices 32, 33
1373      (worth another tag)
1374    
1375    checkpoint57n_post
1376    o adding precip control xx_precip 32
1377    o adding swflux control xx_swflux 33
1378    o Replacing 10 forcing penalty cost routines by 1 generic.
1379    o Implementing partitioning in time-mean and variable adjustment
1380      for atmos. state.
1381    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1382    o in natl_box_adjoint:
1383      * updated exp 1 to 10
1384        (but does not have time-mean vs. variable split results yet)
1385    o updated global1x1/*_seaice_adj/
1386      to incorporate latest changes
1387    o enable useSingleCpuIO for mdsio vector routines
1388      (applies in particular to tapelev I/O)
1389    o removed inefficient K-loop in all active_file*control*.F
1390    
1391    checkpoint57m_post
1392    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1393      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1394    o pkg/exch2: filling of face-corner halo regions is optional
1395      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1396    
1397    checkpoint57l_post
1398     tag before updating tutorials (pre-release-2)
1399    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1400       for output and interpolation of input fields onto model grid)
1401    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1402       Affects results of exp. rotating_tank ; update output.txt.
1403    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1404          and taking the square quantity and/or using a fraction-weight field.
1405    o fix aim_diagnostics_init.F mate numbers.
1406    o add mnc output capability to diagnostics/diagstat and update
1407      our cvsignore files for the ACSII output generated
1408    
1409    checkpoint57k_post
1410    o lab_sea now uses diagnostics package and provides a suite of
1411      new EXF diagnostics output.
1412    
1413    checkpoint57j_post
1414    o exf
1415      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1416        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1417        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1418      * extended diagnostics output
1419        - now includes all EXF variables
1420        - hs, hl moved to common block
1421        - separate S/R for diagnostics, called after ctrl vector is added
1422        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1423        - EXFqnet contains true Qnet (i.e. includes qsw)
1424      * updated verif. lab_sea, global_with_exf
1425      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1426        to ensure that diagnostics sees a true EXFqnet
1427    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1428    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1429      several times with different frequencies.
1430    o mnc-ify the thsice package as requested by Daniel Enderton
1431      - the monitor--MNC output needs work
1432      - many attributes need to be added (most are currently blank)
1433    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1434      - many attributes need to be added (most are currently blank)
1435    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1436    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1437    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1438      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1439         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1440    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1441     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1442    
1443    checkpoint57i_post
1444    o Diagnostics package was changed: diagnostic allocation is now deactivated
1445      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1446    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1447      add 1rst Order upwind vertical Shear.
1448    o add a quick fix for A/B checkpointing in OFFLINE mode
1449    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1450      end-run around the C/Fortran linking horror in eesup/src/timers.F
1451    o added pkg/runclock: allows user to terminate run based on wall clock
1452    o added non-hydrostatic scaling parameter: nh_am2
1453    o pkg/my82: futile attempt to make results compiler-independent by adding
1454      some "_d 0", etc. no effect.
1455    o for mnc output, fill the 'T' coordinate var with myTime and create a
1456      separate 'iter' variable for iteration count
1457    o pkg/diagnostics:
1458      add new capability: output of Global/Regional & per-level statistics ;
1459      tested against monitor output (including land & thSIce) on various exp.
1460    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1461    
1462    checkpoint57h_done
1463      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1464      data.diagnostics, data.gchem, data.ptracers) is done.
1465    
1466    o pkg/diagnostics: prepare for Global/Regional statistics.
1467      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1468    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1469      and rename it: DIFFERENT_MULTIPLE
1470    
1471    checkpoint57h_post
1472    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1473    o pkg/diagnostics: change output frequency, now in seconds (instead
1474      of Nb of iterations). This requires to change data.diagnostics.
1475    checkpoint57h_pre
1476    
1477    o in mnc, let the user create the output dir if both mnc_outdir_date
1478      and mnc_outdir_num are false
1479    o add fflags() to pkg/diagnostics which allows one to specify, on a
1480      per-file basis, the file precision [default behavior is unchanged]
1481    o added diagnostics to pkg/kpp, including computation of mixed layer
1482      depth based on a temperature/density criterion
1483    o updated verification/natl_box to test the new pkg/kpp diagnostics
1484    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1485    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1486    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1487      not mnc -- this mistake was found by JMC and is now corrected
1488    
1489    checkpoint57g_post
1490    o add Adams-Bashforth 3rd Order time stepping:
1491      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1492      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1493    checkpoint57g_pre
1494    
1495    o make lambda[Theta,Salt]ClimRelax spatially varying
1496      (default remains spatially uniform constant based on tau)
1497    o added new control variables
1498      * init. uVel, vVel, etanN
1499      * lambda[Theta,Salt]ClimRelax
1500    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1501      (suggested by G. Forget)
1502    
1503    checkpoint57f_post
1504    o add parameter "baseTime" = model base time = time at iteration zero
1505      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1506      account for baseTime shift
1507    o move Coriolis arrays from PARAMS.h to GRID.h
1508    checkpoint57f_pre
1509    
1510    o mnc-ifying the seaice package
1511    o introduced an alternative length scale calculation for use in the limiting
1512      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1513    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1514    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1515      as well as grad(vort3).  Made it compatible with both approximate form
1516      for the cubed sphere and full form of these gradients.  Added flag
1517      useFullLeith to select between approximate and full form.  
1518    o add "d0" in getcon.F to reduce differences between compilers/platforms
1519      update output.txt of exp. fizhi-gridalt-hs
1520    o change port_rand funtion to allow to set the seed.
1521    o fix obscure MNC bug involving conversion between reals and integers
1522      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1523        new version is now more standards-compliant
1524    o adjoint-related modifications
1525      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1526      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1527      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1528    
1529    checkpoint57e_post
1530    o Adding eddy stress controls a la Ferreira et al.
1531    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1532    
1533    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1534      update output.txt of exp. fizhi-gridalt-hs
1535    o add more "Z" dimensions and associated coordinate vars to MNC
1536    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1537    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1538      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1539      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1540      months and years.  Requires pkg/cal.
1541    o diagnostics: add pickup functionality
1542      - off by default for backwards compatibility
1543      - current version only uses MDSIO -- MNC will be added
1544    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1545    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1546    
1547    checkpoint57d_post
1548    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1549    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1550      output from the diagnostics package
1551    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1552    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1553      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1554    o add coordinate variables to the MNC output from the diagnostics package
1555    o change MNC-flags default value: true when useMNC=TRUE
1556    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1557      the ability (off by default) to read the grid information using MNC
1558    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1559    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1560    o do snap-shot diagnostics at the middle of the time-interval (instead of
1561      at the end).
1562    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1563      new test for AIM with thSIce + slab-ocean
1564    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1565    o move state variable diagnostics to the beginning of the time step ;
1566      (note: still needs some work specially for snap-shot diagnostics)
1567      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1568    
1569    checkpoint57c_post
1570    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1571    o generate new output.txt files on faulks with g77 & the new -ieee option
1572    checkpoint57c_pre
1573    
1574    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1575      update output.txt of exp. global_ocean.90x40x15
1576    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1577      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1578    o add saltFlux(+File) forcing capability with periodicExternalForcing
1579    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1580    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1581    o improvements for the MNC output from DIAGNOSTICS:
1582      - correct handling of the unlimitied dimension
1583      - all dims now have associated coordinate variables
1584      - variables located at U, V, and Corner ("Z") points are now written
1585        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1586        *all* data points are output
1587    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1588    o added pkg/seaice/seaice_monitor.F
1589    o mdsio_readfield.F can now read files visible only to master MPI process.
1590    o pkg/seaice: some test code for ice-modified ocean stress
1591    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1592      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1593      spurious negative numbers for precipitation and humidity.  Will cause
1594      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1595    o pkg/ctrl/
1596      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1597        May be enabled via doPackDiag
1598      *  introduce z-scaling of
1599         + gradient (doZscalePack) and
1600         + control (doZscaleUnpack)
1601    o pkg/mdsio/
1602      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1603      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1604    
1605    checkpoint57b_post
1606    o simplify options in diagnostics_fill arguments (remove weird combinations)
1607    o fix MNC coordinate variables so that they now contain per-face index
1608      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1609      general, EXCH2 grids are only aligned to a "local" coordinate system
1610    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1611    o Implement instantaneous output within pkg diagnostics:
1612      setting a negative frequency in data.diagnostics produces
1613     "snap-shot" output (as opposed to time-average if freq > 0)
1614    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1615      NOTE: change ptracer diagnostics name: use 2 characters to work with
1616            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1617    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1618      becomes the coordinate variable for the 'T' dimension
1619    o add CF-style coordinate variables to MNC
1620      - just a first cut:  numbers are meaningless on the cubesphere and
1621        missing along the T axis but otherwise it works!
1622    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1623    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1624    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1625      this is based directly on what the model compute, so that the content of
1626      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1627    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1628    o clean up build options files for SunOS, in particular
1629      - remove -traditional from xmakedepend
1630      - change -xarch=v9 to -xarch=native for f77
1631      - restore use of make (not gmake)
1632      - add CC=gcc if using g77
1633    o changes per discussion of AM, JMC, & EH3 today:
1634      - move redundant "grid" variables out of "state" -- in preparation of
1635        creating proper CF-style coordinate variables and in recognition
1636        that any/all grid variables can be easily copied (eg. w/NCO) from
1637        the grid files into any of the other NetCDF files
1638      - *always* output grid variables with MDSIO (this will eventually be
1639        changed)
1640      - output MNC grid file if useMNC is true
1641    o every instance of _END_MASTER() has been found and replaced with
1642      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1643      preprocessors
1644    o re-arrange diagnostics pkg initialisation:
1645     - allow each package to extend the available diagnostics list
1646     - add some checking and fix small problems (multi-threaded, ...)
1647     - new S/R diagnostics_fill (replace fill_diagnostics):
1648       look through the short list of active diag. (instead of the long list)
1649       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1650    
1651    checkpoint57a_post
1652    o this set of changes restores TAMC compatibility
1653      tested for global_ocean.90x40x15 adjoint on trough
1654      (what a pain)
1655    
1656    checkpoint57a_pre
1657    o some modifs in tools/build_options for sunos
1658    o call ctrl_pack for ctrl at end for optimcycle=0
1659    
1660    checkpoint57
1661    o add horizontal bi-harmonic viscosity for vertical velocity
1662      - new parameter viscA4W (defaults to viscA4)
1663      - affects only non-hydrostatic code
1664      - to be done: no-slip lateral boundary conditions
1665    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1666    o implement Implicit Vertical advection for pTracers
1667    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1668      (implemented also for implicit vertical diffusion & advection)
1669    o OBCS: extend application of tracer open boundary conditions
1670      to a strip beyond the boundary of width Olx/Oly
1671    o add call monitor to TAF set of required calls (flow directives)
1672      and include in natl_box_adjoint
1673    o untangle a few ifdefs related to cost, ctrl, autodiff
1674      untangel a few ALLOW_ECCO_OPTIMIZATION
1675    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1676      (theta2, salt2 in ecco_cost_weights)
1677    
1678    checkpoint56c_post
1679    o OBCS as control variables
1680      - update ctrl_ad_diff.list, obcs_ad_diff.list
1681      - remove balance of obcs controls from default
1682      - fix index bug nobcs in ctrl_init
1683      - fix dummy fields filen in ctrl_pack
1684      - add dummy weights for obcs
1685    o lsopt: comment out fort.94 output
1686    o optim:
1687      - remove unnecessary header files
1688      - adjusted namelists
1689      - add xerbla.F to Makefile
1690    o exf:
1691      - multiple modifications of exf_check_range
1692      - unit change in exf_init_runoff from [m/year] to [m/s]
1693    o mdsio:
1694      - i/o-vector change debugLevel from debLevA to debLevB
1695    
1696    checkpoint56b_post
1697    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1698      is called from DO_THE_MODEL_IO
1699      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1700      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1701      - clean up PTRACERS_WRITE_TIMEAVE a little
1702    o add another verification experiment that tests both the cfc-pkg and
1703      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1704      reactive tendencies treated inline with regular timestepping
1705    o testreport previously did a lousy job of comparing small numbers, so
1706      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1707      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1708      testreport.
1709    o ptracers_monitor: bug fix for MPI
1710    
1711    checkpoint56a_post
1712    o GCHEM: finish reorganizating the package
1713      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1714        (introduces another 3D-array for each passive tracer, but only if
1715        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1716        gchemTendency is not needed because the timestep is done separately)
1717      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1718      - GCHEM is now---more or less cleanly---separate from PTRACERS
1719      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1720        so clear to me how that should be done in a general way.
1721    o CFC: improve formatting of output in CFC_ATMOS
1722    o PTRACERS:
1723      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1724        that ALL experiments with ptracers enable can be checked. This makes
1725        GCHEM_MONITOR obsolete.
1726      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1727        monitorFreq
1728      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1729    o add PTRACERS (PTR0[1-5]) to testreport output
1730    o exf_check_range:
1731      * default changed to .TRUE.
1732      * will check values for niter0 if debLevA, every timestep if debLevB
1733      * STOP in exf_check_range if 'out of range'
1734      * range chosen generous to allow for potential extema
1735      TBD: a version with stricter range
1736           permitted range would be runtime parameters
1737  o GMredi:  o GMredi:
1738    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1739    - 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 1742  o GCHEM:
1742    - 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
1743      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1744    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1745      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1746        this flag is now only visible within GCHEM-pkg routines.
1747      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1748        be replaced by a 3D array that is computed before thermodynamics; for
1749        this, the tracer ID iTracer had to be included into the parameter list
1750        of ptracers_forcing
1751      - set up forward_step to call gchem_forcing, that will replace
1752        gchem_forcing_int in ptracers_forcing
1753      - cleaning up
1754  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
1755    
1756  checkpoint56  checkpoint56

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