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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.944 by mlosch, Thu Jan 24 08:30:07 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/exf:
8      - add a little more diagnostic to exf_interp_read (in analogy to
9        mds_read_field, can be turned off with debugLevel < debugLevA=1)
10      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
11        ugly but fast by unrolling short inner loops, inserting a unroll=8
12        directive in routine lagran, and splitting a loop and making do while the
13        outermost loop (the latter requires the intoduction of index arrays)
14    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
15    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
16      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
17    o verification/seaice_obcs: updated for restart test and latest options
18    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
19      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
20      for now this is only available for the C-grid code and also within
21      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
22    
23    checkpoint59m
24    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
25      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
26    o gad_som : fix flux output (& diagnostics) to have same units as other  
27      advection scheme fluxes (was previously multiplied by deltaT).  
28    o added verification/seaice_obcs both to test seaice open boundaries
29      and to provide an example matlab scrpt for generating them
30    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
31    o pkg/salt_plume: clean up salt_plume_frac.F to
32      remove redundancy in PlumeMethod 1 and 4
33    o pkg/kpp: added saltplume diagnostics
34    o pkg/obcs and pkg/seaice:
35      - do not set uice and vice to zero when OB*icefile are unspecified
36      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
37      - moved seaice tracer obcs after call to seaice_growth
38    o pkg/salt_plume: added various options for salt plume depth
39      criterion and for vertical distribution of the salt
40    
41    checkpoint59l
42    o pkg/ptracers: new version of ptracers pickup:
43      read meta file and write only fields which are needed to restart.
44      ( same logic as main pickup file ; also using pickupStrictlyMatch )
45    o pkg/seaice:
46      - add timescale for melting due to warm mixed layer as a means of
47        setting SEAICE_availHeatFrac more conveniently
48      - add a CPP-flag/runtime parameter check for flooding algorithm
49      - reformulated availHeat in seaice_growth.F to be independent of AREA
50    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
51      unit changes
52    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
53    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
54      SX vector computer.
55    o pkg/seaice:
56      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
57        seaice forcing fields can now be read only through pkg/exf
58      - removed some unused halos
59    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
60    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
61      or U/VICE from U/VWIND before computing U/VSTRESS
62    
63    checkpoint59k
64    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
65      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
66    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
67      all experiments pass when compile with un-initialised var. checking option.
68    o added pkg/salt_plume
69    o script to test restart (for now, in MITgcm_contrib/jmc_script)
70    o pkg/seaice: new read/write pickup version.
71      read meta file and write only fields which are needed to restart.
72      ( same logic as main pickup file ; also using pickupStrictlyMatch )
73    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
74    o lab_sea.hb87: modify the domain & update output.hb87.txt :
75      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
76      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
77      process. Fixed here by closing the domain at the Northern boundary.
78    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
79    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
80      a set of consecutive levels in/from a 3-D array.
81    o pkg/ptracers:
82      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
83      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
84    
85    checkpoint59j
86    o in pkgs: dic, obcs, offline, rbcs:
87      standard way to compute coeff. for time interpolation between 2 time reccords
88      which retains full precision (& make results less dependent on compiler).
89      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
90    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
91      packages instead of reading ice cover and wind speed separately
92    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
93     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
94      to allow to compile customized code before the update)
95    o cleaning-up:
96      - fix CPP instruction syntax in pkg/obcs
97      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
98        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
99      - fix some threads issue in IO parts.
100    o pkg/dic:
101      - add tons of "_d 0" (--> much better testreports !)
102       and then update outputs of tutorial_global_oce_biogeo
103    o pkg/mom_fluxform:
104      add a special version of momentum advection intended to conserve momentum
105      next to a bathymetry step or a coastline edge. (default = off = #undef)
106    o new read/write pickup version:
107      - for now, only implemented for main (mdsio) pickup file.
108      - write out only what is needed to restart; merge pickup_nh , pickup_ph
109        and main pickup together.
110      - read meta file; read only what is needed to restart; stop if a field
111        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
112        if it make sense (even if the restart is not perfect).
113      - if no meta file, assume that pickup to read corresponds exactly to
114        a pickup that would currently be written.
115      - read pickup written in the old format (until checkpoint59i) if it
116        recognizes an old meta file (no field-list).
117      - add a meta file in exp. which starts from a pickup: 2 cases:
118        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
119         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
120        b) a meta file describing the content of the associated pickup file
121         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
122    o pkg/mdsio & pkg/rw:
123      - new routine to read a meta file ; new set of routine to read
124        Multiple-fields file (with meta file).
125    o added open boundary conditions capability for seaice
126        HSNOW, HSALT, UICE, and VICE
127    
128    checkpoint59i
129    o adjoint:
130      * fix multiDimAdvection adjoint
131        (partial recomputation problem by TAF for fVerT(:,:,kDown)
132        and comlev1 size definition (maxpass vs. max. number of tracers)
133      * verification/global_ocean.90x45x15 adjoint now tests
134        NLFS and multiDimAdvection using DST3 (=30)
135      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
136    o pkg/kpp: add "_d 0" to real constant (if missing);
137      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
138      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
139    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
140      for internal parameters related to restart process (formerly from PARAMS.h)
141      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
142    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
143      as argument. (only atm2d & obcs write_pickup have not yet been updated)
144    o pkg/monitor:
145      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
146      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
147      - account for deep Atmosphere factor and density factor (anelastic)
148    o added open boundary conditions capability for seaice HEFF and AREA
149    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
150      thermodynamics
151      - requires a little reorganization, which affects the testreport results
152        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
153        so that now the conservative form is tested
154      - add a few comments
155    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
156    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
157    o add new diagnostics to seaice: advective, diffusive fluxes (only for
158      multidim-advection, for scheme 2 they are not filled) and transports,
159      thermodynamic growth rates
160    o change units of EmPmR (inside the code, + within coupling interface)
161      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
162      Affects results @ truncation level (cg2d match) and update output of
163       experiments: lab_sea(6), global_ocean.90x40x15(10),
164      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
165      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
166      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
167      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
168    
169    checkpoint59h
170    o pkg/exf:
171      - improve vectorization by moving if-statement out of loops in
172        exf_mapfields, exf_radiation
173      - exf_bulkformulae.F: introduce 2D fields and vectorize code
174    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
175    o testreport:
176      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
177        monitor & update offline_exf_seaice exp. output.
178      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
179    o pkg/seaice:
180      - bug fix in the evp solver: boundary conditions were affected be
181        masking of zMax/zMin (changes results)
182      - minor bug fix in boundary conditions in seaice_calc_strainrates
183        (changes results for no_slip)
184      - seaice_lsr.F: make interpolation of eta dependent on boundaries
185      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
186      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
187        stress formulation and no-slip boundary conditions
188    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
189      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
190    o pkg/seaice: a first HSALT time stepping equation has been checked in
191    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
192      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
193      without requiring DO-IF statements
194    o pkg/thsice:
195      use continuous power-law function for partition of energy between lateral
196      melting/freezing and thinning/thickening ; old code using step function
197      still available with #undef THSICE_FRACEN_POWERLAW
198      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
199    o testreport: change AD testing : check against results/output_adm.txt
200      using same scripts as for forward test.
201    
202    checkpoint59g
203    o adjoint testing: in preparation for changing testreport:
204      - output format: cost and grad written on separated lines
205      - ad output results in directory "results" (instead of "results_ad")
206    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
207    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
208    o pkg/ecco: allow user defined cost function contributions
209    o testreport:
210      Allow to choose (per experiment) the list of tested output variables
211       and the main variable (used to issue a pass/FAIL ) ;
212      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
213      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
214      Also modify printing of summary:
215       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
216       b) echo the list of tested variables in the individual summary.txt of
217          each experiment.
218    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
219      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
220      (but still depend on the tile decompostion of the domain).
221    o pkg/seaice: change a discretization detail to make the B-grid code
222      "more symmetric". This change is likely to remove all "ridges/leads" that
223      where quasi-aligned with the grid in B-grid solutions. It may also be
224      the solution to the stress coupling issues with the B-grid.
225    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
226      remove .cvsignore from input dir. (since testreport no longer run here).
227    o pkg/thsice:
228     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
229     - fix reshaping of sea-ice just after advection:
230       melt all the ice only if ice-volume is too small.
231     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
232       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
233     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
234    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
235      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
236    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
237      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
238      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
239      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
240      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
241      -> update output.txt
242    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
243     this affects truncation error: -> update output.txt of exp:
244      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
245      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
246    
247    checkpoint59f
248    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
249    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
250      a bounded range (in forward mode)
251    o pkg/ecco, ctrl, autodiff and mom_common:
252     internal parameter controls, completements of implementations
253    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
254    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
255      (not seem any difference in testing results).
256    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
257       at face corners.
258    o pkg/generic_advdiff:
259     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
260      loop range indices for computing vertical advection tendency
261      and do the calculation in the interior only (no overlap) ;
262      for now, only implemented for SOM advection (to save CPU time).
263     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
264    o exch2 adjoint
265      First set of changes:
266      - add exch2 hand-written adjoint templates
267      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
268        This will require cleanup in pkg/autodiff/*.F
269        (changed routines currently kept separate in verif. code/)
270      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
271        that used to hide exch2 or cubed-sphere specific code
272        (commented via 'cph-exch2')
273    o pkg/seaice
274      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
275    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
276       output of global_ocean.cs32x15.thsice .
277    
278    checkpoint59e
279    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
280      for B-grid vector (not yet tested) and C-grid vector (<- only used
281      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
282    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
283      (#ifdef ALLOW_SALT_PLUME)
284    o gather_2d/scatter_2d: removed halo regions
285    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
286      scheme and the corresponding test case (under front_relax dir). For now,
287      only available with Skew-flux form and not yet tested in realistic set-up.
288      adjoint: store directives updated, but gradient checks deteriorated,
289      so maybe GM/Redi adjoint is now broken.
290    o seaice adjoint
291      * add AREA, HEFF, HSNOW as control variable
292        (should not change lab_sea results)
293      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
294    o pkg/seaice:
295      * added computation of saltFlux in seaice_growth;
296        For time being, sea ice salinity is assumed constant
297        contribution of snow flooding to freshening of sea ice is neglected.
298        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
299        defaults to 0.0 in order to maintain backward compatibility.
300        Typical values for SEAICE_salinity are 4 to 10 g/kg.
301      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
302      * added SEAICE_availHeatFrac, which specifies fraction of surface level
303        heat content used to melt or grow ice
304      * commented out cap of HICE: it helps keep ice thinner
305      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
306      * applied OBCS T/S mask to HEFFM sea ice mask
307    
308    checkpoint59d
309    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
310     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
311     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
312    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
313     and change default value of parameter "GM_Small_Number";
314     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
315       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
316       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
317    o pkg/ecco: cost function when applying pkg/smooth to controls
318    o pkg/ctrl: add forcingPrecond run time parameter
319    o pkg/seaice:
320     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
321     - fix bug in metric terms of u-equation in LSR solver (implicit part),
322       changes verification/lab_sea
323     - rearrange implicit part of u-equation in LSR solver to make it easier to
324       read, understand, and debug. This causes changes at the truncation level.
325     - fix (serious) bug in the boundary conditions (sign error in the implicit
326       part) of the LSR solver. Changes all LSR results.
327     - fixed problem with HSNOW initialization to avoid thick snow when AREA
328       is initilized with small values - does not change lab_sea results.
329     - added HsnowFile initialization capability
330    o pkg/smooth: addition to model/src and pkg/ctrl so allow
331     initialization of pkg/smooth and application to control vector
332    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
333    o dependencies: pkg/profiles requires pkg/cal
334    o pkg/profiles:
335     - added option ALLOW_PROFILES_GENERICGRID
336         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
337         that interpolation information (grid points and coefficients) is provided
338         within the netcdf input files.
339         -> sample matlab scripts can be found in MITgcm_contrib/gael
340         that allow you to prepare netcdf input files.
341     - also modified: cleaner include statements, cleaner error print statements,
342       cleaner stops when error, and more tests of the netcdf input files consistency.
343    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
344    o pkg/seaice:
345     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
346       requires a new routine: seaice_diagnostics_fill.F
347     - make sure that seaice does not move if not forced (pressure replacement
348       method, Hibler and Ip, 1995), changes results
349     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
350     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
351       It is turned off by default (=-1.), because it changes the results.
352     - make it possible to read AREA from a file, too.
353    
354    checkpoint59c
355    o add S/R and diagnostics for oceanic mixed-layer depth
356    o move GMRedi call after all vertical mixing schemes (including KPP)
357    o pkg/thsice:
358     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
359      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
360    o pkg/obcs:
361     - bug fix for balance code
362    o pkg/seaice:
363      - allow values of SEAICE_elasticParm > 1
364      - add new parameter SEAICE_evpTauRelax as an alternative
365        to SEAICE_elasticParm
366      - make lsr boundary conditions free slip (by default), changes result
367      - add code for no slip boundary conditions for lsr
368      - set minimum of zeta to zero (and not 4e8) (changes results)
369      - add a cap on AREA after advecting AREA if seaice_growth is not called
370    o change calculation of Visbeck K:
371      - no longer depend on tapering scheme; instead, compute slope (limited
372        by GM_maxSlope). this is equivalent to what was comuted before with
373        clipping or linear tappering.
374      - fix vertical averaging (wrong by 1/2 level)
375      - leave the old version (but will not be maintained) within
376        #ifdef OLD_VISBECK_CALC / #endif
377      - update output of exp. ideal_2D_oce
378    o change error catch in calc_r_star to improve vectorization
379    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
380      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
381    o adjoint:
382      Re-organized adjoint checkpointing according to Matt Mazloff
383      (but with modifs/completions/cleanups)
384      Storing is now bundled into large arrays to optimized I/O
385      (and second step in cleanup of the_main_loop)
386    
387    checkpoint59b
388    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
389      - export/import (between ocean & coupler) fields needed for ocean DIC.
390    o pkg/seaice:
391      - get rid of three more exchanges seaice_calc_viscosities (required
392        different loop boundaries in seaice_lsr and seaice_ocean_stress)
393      - bug fix in seaice_ocean_stress (update of lab_sea required)
394      - reduce loop boundaries to necessary minimum also in seaice_evp
395      - go back to the old way of computing deltaC/Z as the adjoint likes that
396        better
397    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
398      passive tracer to an Age Tracer) + update output.txt
399    o pkg/exf:
400      - implement A-grid / C-grid selection for wind-stress input files.
401      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
402      for now, in exf_bulk_largeyeager04.F only :
403      - change implementation for case where windspeed + 2. components wind-stress
404        are read-in. AND use rhoConstFresh to convert evap.
405    o pkg/seaice:
406      - use correct EXCH_UV for wind-forcing (on A-grid).
407      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
408        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
409    o pkg/exf:
410      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
411      EXF_INTERPOLATION:
412      - merge global_with_exf/code version of exf_interp_read.F
413        to the main code ;
414      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
415        reading the file ; Important: This options needs to be defined to recover
416        previous code.
417        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
418      - no longer loose real*8 precision along the way when using exf_iprec=64.
419    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
420      - change discretisation of evp-solver in order to avoid another exchange
421        (changes lab_sea) and clean up a little
422      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
423        help the adjoint (this also changes the results slightly)
424      - add a few "_d 0" where they had been missing in seaice_evp.F
425      - cleaning up: remove unused seaice_calc_rhs.F
426    o pkg/exf: some cleaning-up:
427      - change various "constants" into runtime parameters
428      - cleaned-up Large&Yeager04 routine which should eventually
429        replace exf_bulkformulae.F (changed names of S/R and CPP)
430        and merged various ALLOW_ATM_WIND options
431     only used with thsice pkg (in thsice_get_exf.F):
432      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
433        which are used when useStabilityFct_overIce=TRUE (= the default)
434      - change default values of ice & snow emissivity and scale downward LW
435        by ice & snow emissivity.
436    o pkg/thsice:
437     fix few little problems, in thsice_calc_thickn.F:
438      - growth vertically (and not laterally) if iceFrac == iceMaskMax
439      - melt only laterally if hIce < hThinIce (as the comments say)
440      and in thsice_extend.F:
441      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
442      - start to form ice as soon as the minimum ice-volume is reachable.
443     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
444      and cpl_aim+ocn
445    o pkg/kpp
446     - move computation of surface related input fields to KPP into a new
447       subroutine kpp_forcing_surf.F
448     - remove wrong (within bi,bj loops) EXCH calls.
449     - little cleaning (add argument myThid in last position, cvs header ...)
450     - for now, fix conservation problem by exchanging KPPviscAz (may not
451       be the best fix)
452    o pkg/seaice
453     - check for inconsistent evp parameter/cpp-flag combination
454     - remove leftover errIO flat for obsolete name list error handling
455    o OpenAD
456     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
457    
458    checkpoint59a
459    o pkg/seaice: some parameter clarifications and a little bit of clean up
460    o pkg/thsice: rename run-time parameters:
461       himin       -> hIceMin
462       himin0      -> hThinIce
463       hihig       -> hThickIce
464       i0          -> i0swFrac
465       transCoef   -> bMeltCoef
466       frac_energy -> fracMelting
467      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
468       with default values (for now) that do not change the results.
469      remove old version of thsice vars advection in pkg/seaice.
470    o in FFIELDS.h:
471      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
472      - make pLoad & sIceLoad always available (but still only used if
473         ATMOSPHERIC_LOADING is #define).
474    o pkg/kpp: replaced _KPP_RL with _RL
475    o bug fixes for vertical diffusivity computations when both KPP and
476        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
477        are no longer updating the vertical diffusivity array
478        (passed as argument) but are (re-) setting those arrays.
479    o pkg/seaice: fix bug in evp solver, while doing that
480      - change (improve?) discretization of stress computations for both
481        cgrid-lsr and evp solver
482      - add a new routine to compute strain rates
483      - the above changes lab_sea results
484      - add no slip conditions for evp solver (off by default), lsr-version
485        may follow
486      - fix exchange for shear at Z-points (does not change lab_sea)
487      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
488        (to force the user to pick a time step since there is not "safe" way
489        of choosing it)
490      - add principal stress diagnostics
491      - rearrange fields for evp a little to avoid having to call a: too many
492        exchanges and b: exchanges for stress trensor components which we do
493        not have.
494      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
495        of evp, complete rewrite for lsr case (latter is does not yet work
496        in all cases)
497    o pkg/kpp: add code to have mixing in shelf ice caverns
498      - add myThid to all kpp routines (long overdue)
499    
500    checkpoint59
501    o pkg/exf:
502      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
503        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
504      - move exf header files from lower_case.h to UPPER_CASE.h ;
505        add missing cvs Header & Name
506      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
507      - add namelist param. selectStressGridPosition, exf_monFreq
508      - retire many _CLIM routines, and remove data.exf_clim
509        + params moved to data.exf
510        + climsst, climsss now handled by exf_set_gen, i.e.
511          climss?period=0 refers to constant field,
512          climss?period=-12 to monthly forcing
513      - split up namelists in data.exf
514    o pkg/seaice:
515      - remove seaice_exch and seaice_exch_uv
516      - remove superfluous exchange of theta
517      - add myThid to seaice_budget_ocean/ice
518      - add new interface for atmospheric wind forcing (C-grid only)
519        + new routine
520        + two new field (taux, tauy for stress over ice)
521        + removed one global field (DAIRN) for C-grid case only
522    o pkg/thsise
523      - 2nd set of modifs for thsice adjoint in conjunction with exf
524    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
525    
526    checkpoint58y_post
527    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
528      vertical diffusivity, similar to that in MOM4; turned on using
529      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
530      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
531    o Added capability for 3D specification of background vertical diffusion
532      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
533      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
534      "data" file that contains the 3D vertical diffusivity coefficients.
535    o ice dynamics (pkg/seaice) with thsice thermodynamics:
536      - add code within pkg thsice to advect & diffuse sea-ice fields
537      similar to (and will replace) what has been added in  seaice_advdiff.F,
538      but: - conserving Mass, Heat & Salt.
539           - better when using non-linear advection scheme (not yet fully tested)
540           - can also be used in atmospheric set-up (for now, only the diffusion).
541    
542    checkpoint58x_post
543    o IO option for global-file compact format:
544      - add options when generating topology (utils/exch2/matlab-topology-generator)
545      - add I/O capability (pkg/mdsio).
546      - adapt utils/matlab/rdmds.m to read this format.
547      for now long-line format not yet supported by pkg/mdsio (& exch2).
548    o shelfice: add a few diagnostics
549    
550    checkpoint58w_post
551    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
552      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
553      (and replace horiVertRatio in NH code).
554      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
555                         and tutorial_plume_on_slope (sensitive to truncation)
556    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
557      directly to drive seaice model (C-grid only)
558    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
559     - reintroduce computation of wind from stress,
560     - compute tau (in exf_bulkformulae.F) from windstress averaged to
561       mass points to avoid tau = 0
562     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
563    o rdmnc.m: make it work with "global" files created with gluemnc
564    o rdmnc.m : some improvements in dealing with singleton dimension
565      (tested on all testreport mnc output files).
566    o genmake2: disable pkg/profiles if netcdf test fails.
567    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
568    o move call to cal_readparms up to make calendar parameters/variable available
569      to all packages
570    
571    checkpoint58v_post
572    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
573      useDynP_inEos_Zc tested.
574    o pkg/exf: changes to properly interpolate/mask/scale initial fields
575    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
576      and portions thereof.  See read_cs.txt for description and examples.
577    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
578      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
579      following the great-circle arc between those 2 points.
580    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
581      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
582    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
583     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
584     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
585     - still needs work (not working with some options ; efficiency to improve)
586       and serious testing.
587     - use this scheme for temperature & salinity in 2 advection test exp.:
588       advect_xy & advect_xz, respectively.
589    
590    checkpoint58u_post
591    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
592    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
593    o testreport: add option "-skipdir" to skip some test.
594    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
595      momentum calculation.
596    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
597    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
598      remove checkpoint.F and the_correction_step.F (no longer used);
599      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
600    o add option (linFSConserveTr) to correct for tracer source/sink due to
601      Linear Free surface
602    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
603    o pkg/thsice: fix reading mnc-pickups
604    
605    checkpoint58t_post
606    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
607    o pkg/mdsio:
608     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
609       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
610       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
611     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
612     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
613       either MDS_READ_FIELD or MDS_WRITE_FIELD )
614     - new S/R (to replace MDSWRITEMETA), which allows to write more
615       informations (variable names, time ...) to meta files.
616     - modify rdmds.m to give back the meta file content.
617    o pkg/diagnostics: change vertical interpolation to be safer, and more
618       flexible (define p-levels to interpolate to in data.diagnostics);
619      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
620       diagnostic pointer.
621    o pkg/seaice: more cleaning up of seaice_growth, added many comments
622    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
623    o fix multi-category seaice:
624     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
625       SEAICE_MULTICATEGORY
626     - fix short wave heat flux
627    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
628       and allow to use EVP solver. Change forward lab_sea: test both EVP
629       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
630    o Initial check-in of lab_sea adjoint
631      (very similar to natl_box_adjoint/code_seaice)
632      * used C-grid and EVP solver
633      * used KPP, GM/Redi
634      * uses inAdExact=.TRUE.
635      * gradient checks fail for both ADM and TLM
636        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
637        f.d. gradients actually seem more problematic than ADM, TLM gradients;
638        issue is related to forward mismatch between g77 an ifort
639    o pkg/seaice: overhaul of thermodynamics
640     - growth.F and groatb.F are replaced by new routine seaice_growth.F
641     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
642     - move a few global fields out of SEAICE.h into seaice_growth.F and
643       make them 2D (FICE/QNETO/ ...)
644     - remove FO (it is the same as QNETO)
645     - introduce a few local fields to avoid modifying external fields such
646       as atemp, etc.
647    
648    checkpoint58s_post
649    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
650      changed exf_set_gen.F so that
651        genperiod=0 means input file is one time-constant field and
652        genperiod=-12 means input file contains 12 monthly means
653    o CG2D: use pre-computed solver main-diagonal (stored in common block);
654      this affects truncation error ; generate new output file for exp. which
655      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
656        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
657        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
658        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
659        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
660        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
661    o start implementation of deep-atmosphere and anelastic formulation
662    o verification: remove 2nd copy of input files and use script "prepare_run"
663      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
664    o mom_common/vecinv/fluxform: fix a few initialisation isssues
665    o profiles: fix for multithreaded case
666    
667    o diagnostics: rename few diags:
668      s/'PRESSURE'/'RCENTER '/g
669      s/'TICE    '/'oceFreez'/g
670      s/'TAUX    '/'oceTAUX '/g
671      s/'TAUY    '/'oceTAUY '/g
672      s/'SWFLUX  '/'oceQsw  '/g
673      s/DIFx/DFxE/g
674      s/DIFy/DFyE/g
675      and add few ocean-forcing diagnostics:
676      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
677    o modifications to pkg/seaice/growth.F and budget.F, which change results of
678      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
679      as actual snow thickness.  It now refers everywhere to effective snow
680      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
681    
682    checkpoint58r_post
683    o modifications to pkg/seaice/growth.F, which change results of
684      lab_sea experiment: fixes pertain to melting snow over open water, to
685      masking EVAP under sea ice, and to using the correct AREA variable for
686      computations of EVAP, PRECIP, HSNOW, and GHEFF
687    o add ability to read bathy, salt, and theta using MNC (off by def)
688    o add flooding algorithm and advection of HSNOW for pkg/seaice;
689      both are turned off by default and do no change any results
690    o seaice advection with pkg/thsice: a step toward the use of non-linear
691      advection scheme, but #ifdef or commented out for now (requires more EXCH).
692    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
693      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
694      in natl_box (affects results @ truncation level: update output.txt)
695    o multi-threading and IO:
696      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
697      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
698        (needed to work with SingleCpuIO): tested in all verif. exp.
699    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
700      affects the results (but none of the verification test uses this scheme).
701    o Adding some pkg/diagnostics capability to pkg/seaice
702      (will certainly be subject to changes)
703    o ctrl: adding new control variables:
704      lwflux, lwdown, evap, snowprecip, apressure, runoff
705    
706    checkpoint58q_post
707    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
708      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
709      high_res_cube configuration by 4% on Columbia.
710    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
711      add (in global_with_exf/code) a version of EXF_INTERP_READ without
712      dynamical allocation (seems to work in multi-threaded).
713    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
714      single CPU io) so that TAF does not have to see EESUPPORT.h
715    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
716    
717    checkpoint58p_post
718    o obcs: stop if obcs is used with useCDscheme = .true.
719    o shelfice:
720     - fix a sign error so that no slip at shelfice interface works
721     - remove stop for combination non-hydrostatic code and shelfice. That does
722       not mean, that the results are correct, but at least they are numerically
723       stable
724    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
725    o added adjoint exch routined for all exch*3d* routines
726      and updated flow directives
727    
728    checkpoint58o_post
729    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
730      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
731    o change controling S/R for writing pickup file (new S/R do_write_pickup)
732      and clean-up reading/writing of pickup files.
733    o fix local version of read/write pickup (NH part) in rotating_tank/code
734    o simplify EXCH interface:
735     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
736     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
737    o added the regrid package
738    o shelfice:
739     - add a simple boundary layer scheme to reduce noise
740     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
741    
742    checkpoint58n_post
743    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
744       local variable (not in common block).
745    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
746      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
747      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
748        to work with SingleCpuIO.
749    o add "_d 0" to real constant of pkg/cfc subroutines ;
750       update exp. cfc_exemple & tutorial_cfc_offline output files.
751    o multi-threading and IO:
752      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
753        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
754      - barrier before and after reading.
755      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
756      - avoid using MDS_WRITELOCAL for LAND pkg output.
757      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
758        common-block variables ; Allows multi-threading with master-thread IO.
759    o change default MAX_NO_THREADS from 32 to 4 ;
760      and stop cleanly when MAX_NO_THREADS is too small.
761    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
762    
763    checkpoint58m_post
764    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
765       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
766    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
767       keep global_ocean.90x40x15 (for AD testing) with former secondary test
768       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
769    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
770        add MITgcm_tutorials (= code + all the tutorials)
771    o ecco, option to compute cost for total ssh (mean+anom)
772    o consistent with addition of ptracer and ssh in pkg/profiles
773    o profiles: adding ptracer and ssh
774    o testreport: change multi-test output-file name
775      (from output.txt.{name} to output.{name}.txt)
776    o profiles: now ok for mutli-tiles case
777    o seaice: add 4 parameters for different advection schemes for area,
778      (effective) seaice thickness, enthalphy, and snow height. Their default
779      is the standard parameter SEAICEadvScheme
780    o calc_gw:
781     - add cosFacU in zonal viscous flux (harmonic.visc.).
782     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
783       of tutorial_plume_on_slope.
784    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
785    o calc_gw: true flux-form, account for horizontal grid spacing.
786      update rotating_tank results, but not plume_on_slope (affected at
787      truncation level, 11 digits).
788    
789    checkpoint58l_post
790    o calc_gw:
791     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
792     - remove side-drag for now (need to fix it); update plume_on_slope results.
793     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
794    o commit code to make SST/SSS weights spatially variable
795      (based on either variable in-situ or variable initial T/S weights)
796    o pkg/ecco:
797      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
798        now based on horizontally varying weights wthetaLev, wsaltLev
799      * cost_averagesflags now returns year indices in addition to day, month
800      * sflux balance is performed on annual basis
801        (sflxumm, sfluxmm2, bal_sfluxmm)
802      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
803        including separate counting and multipliers
804    o pkg/rbcs
805      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
806    
807    checkpoint58k_post
808    o testreport:
809     - always build in dir. "build" (if not there, mkdir build instead of building
810       & running in input)
811     - run in dir run (if it exists), in build otherwise.
812     - call prepare_run (if input/prepare_run exists)
813     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
814    o pkg/exf modifications to interpolation and rotation routines for more
815       reasonable treatment of North Pole singularity: for tracers North Pole
816       value is set to northernmost zonal-mean value, for zonal velocity it is
817       set to zero, and for meridional velocity it is set to northernmost value.
818    o pkg/exf/exf_check_range.F
819     - add tile index to diagnostics and move stop statement to the very
820       end of the routine.
821    o pkg/diagnostics: (diagnostics_main_init.F)
822      define title of isomorphic variables according to the current config.
823    o pkg/thsice with pkg/seaice dynamics:
824    - fix domain of computation (interior only, required for exf) and do exchanges
825    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
826    o towards a standard way of dealing with multi-threading in MONITOR
827      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
828    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
829       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
830    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
831    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
832    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
833       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
834    o tracer advection:
835     - clean-up and simplify calc_common_factors.F
836     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
837       advection subroutine (but still not used within DST advection S/R)
838    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
839    
840    checkpoint58j_post
841    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
842      from file (collects calls previously in FORWARD_STEP)
843    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
844    o adjoint store dir. adjusted accordingly
845    o genmake2
846      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
847    
848    checkpoint58i_post
849    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
850      on wind stress (SEAICEstressFactor defaults to 1.)
851    o Total number of Timers is finite (<=40): comment out 2 non-essential one
852      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
853    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
854      on CS-grid: no longer loosing mass.
855    o exf & curvilinear-grid: no longer modify longitude xC & xG.
856    o pkg/ggl90: fix sloppy output and fix a bug
857    o pkg/seaice: added SEAICEuseEVPpickup parameter
858      - Set to false in order to start EVP solver with
859        non-EVP pickup files when using SEAICEuseEVP
860      - fix sign error in diffusion in seaice_calc_rhs
861    
862    checkpoint58h_post
863    * Modifications for bottom topography control
864      o replace hFacC by _hFacC at various places
865      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
866      o add non-self-adjoint cg2d_nsa
867      o update autodiff support routines
868      o re-initialise hfac after ctrl_depth_ini
869      o works for 5x5 box, doesnt work for global_ocean.90x40x15
870    * Adding verification for 5x5 box (4-layer) bottom topography control
871    
872    checkpoint58g_post
873    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
874       used for mean seasonal cycle, mean diurnal cycle); add an example
875       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
876    o pkg/ggl90:
877      - add parameter (minimum surface kinetic energy)
878      - fix bug (avoiding division by zero)
879    o couple pkg/thsice to pkg/seaice:
880      - modify advection in seaice to accomodate new scalar fields to be advected
881      - only muliDimAdection scheme work with seaice/thsice
882      - mapping of thsice-variables to seaice-variables, back and forth
883      - does not break the verification experiments, but does not give the
884        desired results either
885    o pkg/seaice
886      - make (default) second order advection a bit less confusing?
887    
888    checkpoint58f_post
889    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
890      to pkg/seaice):
891      - new routines thsice_map_exf and thsice_get_exf provide the interface
892      - add an additional formal parameter to thsice_solve4temp
893    o pkg/exf:
894      - add new fields wspeed, snowprecip (to be able to couple to thsice)
895      - correct Stefan-Boltzmann constant
896      - new parameter for longwave surface emittance
897      - separate some stuff from exf_bulkformulae into new routines  
898        exf_radiation, exf_wind
899      - add new parameters and constants: longwave emissivity for ocean, ice
900        and snow, evaporation parameters over ice
901      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
902        either wind from stress or stress from wind
903    o pkg/thSIce:
904    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
905    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
906       and THSICE_CALC_THICKN
907    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
908    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
909      to make debugging easier.
910    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
911    o pkg/bulk_force:
912      - clean-up comments and parameters ;
913      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
914    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
915      generate new output for test-experiment: aim.5l_cs.thSI
916    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
917      testreport accordingly
918    
919    checkpoint58e_post
920    o SEAICE_CGRID adjoint done
921    o R_STAR adjoint implemented.
922      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
923      * need to sort out init. of h0facc, etc.
924    o Make pkg/profile fully independent of ecco,cost, etc. stuff
925      to be able to use it in pure forward.
926    
927    checkpoint58d_post
928    o upgrade simple test-experiment to tutorial example:
929     step.1: duplicate the experiment and (step.2) will remove the old copy.
930      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
931      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
932      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
933      tutorial_global_oce_biogeo    <- copy of dic_example
934      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
935      tutorial_plume_on_slope       <- copy of plume_on_slope
936      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
937      tutorial_global_oce_optim     <- empty for now (David ?)
938      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
939     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
940    o correct a sign problem in cost_scat.F
941    o obcs and ptracers: fix boundary conditions for advections schemes
942      with larger stencil
943    o thsice adjoint: start
944    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
945      completeness
946    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
947      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
948    o ptracers adjoint:
949      * avoid extensive recomputatations
950      * fix missing re-init. of gptr (missed by TAF)
951    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
952      me to turn off the excessive output to STDOUT that this package produces
953    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
954      and add those terms in Vector-Invariant formulation.
955    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
956      if the control period (xx_hfluxperiod etc) is 0
957    o in profiles pkg, clean routines and fix details
958    o in ecco pkg, reading ssh data:
959      fix problem in case the model does not start at iter0=0
960    o fix mnc-pickup/restart for ptracers
961    o new package prifiles:
962      code to compute profile-based cost by Gael Forget
963      (modifs in ecco, ctrl, autodiff)
964    o Benign bug fix in initialization (spotted by M. Mazloff) of
965      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
966    
967    checkpoint58c_post
968    o adjoint: finish NLFS adjoint and provide reference output in
969      verification/global_ocean.90x40x15/results_ad_nlfs
970    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
971      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
972      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
973      with SEAICE_CGRID defined.
974    o move calendarDumps from "data" to "data.cal" and clean-up the code
975      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
976    o add useEXF & useCAL flags (for now, set in hard-coded way)
977    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
978      (were missing in NH mode, and wrong in quasihydrostatic mode).
979      waiting for Chris updated version of calc_gw to add those CALLs.
980    o fix bug in quasihydrostatic S/R ;
981      add a test for this option: global_ocean.90x40x15.qshyd
982    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
983      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
984    o add on/off flag useOffLine for package OFFLINE
985    o seaice:
986      - modify advection so that it works also on the C-grid
987      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
988        problem in multi-tile runs with C-grid
989      - add flags for clipping ice velocities and/or masking solver forcing
990      - fix drag (ocean on ice) formulation and a bug that caused noise in the
991        C-grid solver
992      - added a few comments to seaice_diffusion.F
993      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
994        are now exclusive)
995      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
996        required re-ordering the code a little:
997       + make DAIRN global variable (defined in SEAICE)
998       + move computation of the viscosities eta and zeta into a new separate
999         routine (because I need to recompute them in seaice_ocean_stress.F)
1000    
1001    checkpoint58b_post
1002    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1003      update output.txt of exp. aim.5l_cs.thSI
1004    o various mnc cleanups and improvements:
1005      + shrink lookup tables by factor of ~4
1006      + better error reporting when running out of lookup space
1007      + able to handle longer path/file names (up to 500 chars)
1008    o adjoint:
1009      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1010      - TBD: "hidden" mom_vecinv recomp. in dynamics
1011    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1012     (allow to differentiate between forcing components using new integer flags:
1013      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1014     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1015    o ecco
1016      - enable trend removal from SSH anomaly obs.
1017    o adjoint
1018      - a fix for PmEpR when #undef EXACT_CONSERV
1019      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1020      - try to fix "hidden" recomp. in forward_step for NLFS
1021        (NLFS seems broken sometimes after I checked it in)
1022    o seaice:
1023     - add c-grid version of the dynamic solver:
1024       + three new routines that are the c-grid substitute lsr, dynsolver
1025         and ostres
1026       + put a few fields that were local to dynsolver into global common
1027         blocks, so that I can move the computation of stresses etc into
1028         seaice_lsr (saves coding but may break the adjoint).
1029     - replace more hardwired parameters by runtime parameters
1030     - add ice masks that mask the rhs of the implicit solvers where there
1031       is no ice (commented out in seaice_dynsolver, because i am not sure
1032       if this works properly), eventually this should replace the clipping
1033       of ice velocities in seaice_dynsolver to +/-40cm/s.
1034    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1035      include it only where its needed
1036    o move balancing of fluxes before the call of external_forcing_surf
1037    o seaice:
1038      - correct units of turning angles (now they are really in degrees)
1039      - move computation of GWATX/Y out of main routine into dynsolver
1040      - initialize GWATX/Y in seaice_init
1041    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1042      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1043    o seaice: add runtime flags for turning angles (default to zero)
1044    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1045      and trend from exf forcing and ctrl control adjustments
1046    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1047      (since checkpoint57x_post)
1048    o change the default rotation period to 86164.s = the Earth rotation
1049    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1050      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1051    o seaice advection: add code for choosing between the default (2nd order
1052      central differences) and multiDim advection schemes provided by
1053      pkg/generic_advdiff
1054    o seaice:
1055      - removed all references to SEAICE_GRID.h fields from
1056        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1057        (cubed-sphere configuration will change a little)
1058      - grid computations in seaice_init are obsolete now.
1059      - cleaned up code a little so that is easier to read (hopefully).
1060      - added new (better?) discretizations of default advection and diffusion
1061        (turn on with SEAICEuseFluxForm)
1062      - replace 1 in 3d global fields by kSurface in growth.F
1063      
1064    checkpoint58a_post
1065    o seaice:
1066      - bug fix in advect.F
1067    o shelfice:
1068      - separate shelfice load anomaly from pload (breaks with time
1069        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1070        Its default is 0., but it may be computed more cleverly from (unknown)
1071        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1072        done offline. A good approximation of the pressure load anomaly is
1073        necessary to avoid large initial adjustment processes underneath
1074        deep-reaching shelfice.
1075      - small fix in ISOMIP shelfice_thermodynamics
1076      - add more sophisticated thermodynamics of Hellmer (1989), this is
1077        now the default
1078      - give a few constants more intuitive names
1079    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1080      if bulk formulae are used in long integration (especially EmPmR). Turn
1081      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1082      if balancePrintMean, the imbalance that is substracted is printed to
1083      STDOUT.
1084    o fix bug (typo) in obcs_apply_eta.F
1085    o add a new package shelfice which enables us to model the circulation
1086      underneath shelf-ice with draughts of hundreds of meters.
1087     - works
1088     - to do: + include improved thermodynamics
1089              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1090                instead of new field kTopC
1091              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1092                instead of new field R_shelfIce and new code in ini_depth.F
1093                and ini_mask_etc.F?
1094              + adjust vertical mixing schemes?
1095    o seaice pkg:
1096     - add a cpp-flag to include a simple formula for a salinity dependent
1097       freezing point of sea water at the surface
1098     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1099       meridional stresses are now different (and hopefully correct)
1100    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1101       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1102       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1103    o pkg/diagnostics: add options and parameters for regional-statistics
1104       diagnostics ; define regions by reading a region-mask from a file
1105       (might add other options later)
1106    o pkg/bulk_force:
1107     - add option and parameters to use AIM surface-flux formulae.
1108     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1109       others forcing fields (defined in PARM05, parameter file "data") are loaded
1110       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1111     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1112     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1113     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1114       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1115     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1116    
1117    checkpoint58
1118    o add "--embed-source" option to genmake2 which, when the supporting
1119      tools can be compiled (as determined by genmake2) will turn on the
1120      embed_files package which then embeds the entire MITgcm source code
1121      (*.[fFhc] + Makefile) used for the build within the executable
1122      - requested by CNH but off by default
1123      - adds a paltry <9MB to the mitgcmuv executable in most cases
1124      - only writes the output when useEMBEDSRC in eedata is true
1125    o clean up 3-dim. relaxation codes:
1126      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1127      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1128      * Thanks to Tom Haine for testing!
1129    
1130    checkpoint57z_post
1131    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1132      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1133    o fix the pickup behavior for obcs in combination with ptracers
1134    o fix a bug in ptracers_external_fields_load
1135    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1136      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1137    o transfered surface NH pressure to eta field (if exactConserv).
1138    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1139         and update lab_sea output.txt file.
1140    o completing 3-dim. relaxation code: additional term
1141         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1142      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1143      * At compile time, in "EXF_OPTIONS.h" set
1144          #define  ALLOW_CLIMTEMP_RELAXATION
1145          #define  ALLOW_CLIMSALT_RELAXATION
1146      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1147          tauThetaClimRelax3Dim = 15552000.0,
1148          tauSaltClimRelax3Dim  = 15552000.0,
1149      * 3 cases:
1150          1) Use a constant-in-time 3-dim. field
1151          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1152          3) Real-time relax. to time-evolving prescribed field
1153    o Adding Laplacian-type smoothness constraint on
1154      initial and boundary (forcing) controls (ic, bc)
1155      * enable at compile-time via
1156        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1157      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1158      * Absolute scale somewhat unclear so far
1159      * no area weighting was included since no other cost term does so far
1160    
1161    checkpoint57y_post
1162    First step for a NLFS adjoint
1163    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1164    o new init. routines for calc_r_star, calc_surf_dr
1165    o still need to deal with ini_masks_etc
1166    o testreport seemed happy
1167    checkpoint57y_pre
1168    
1169    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1170    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1171    o add new offset feature to offline pkg (plus minor cleanup)
1172    o cfc fixes for final year of integration
1173    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1174      be in GCHEM_OPTIONS).
1175    
1176    checkpoint57x_post
1177    o fix testreport Pb in multiple test experiment.
1178    o cleanup our namelist syntax in verification:
1179      - make it more F95 standards compliant (some work still needed)
1180      - allows the vast majority of our tests to work with gfortran
1181    o Non-Hydrostatic:
1182     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1183     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1184    o Allow to apply AB on T,S rather than on AB(gT,gS):
1185     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1186     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1187       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1188     - need a "clever" read_pickup to restart from the other AB formulation
1189    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1190    o remove some unused variables (reduces number of compiler warnings)
1191    o adjoint
1192      * Disable useVariableViscosity for adjoint for time being
1193        (there are a number of extensive recomputations)
1194      * Initialize certain variables needed for adjoint
1195    
1196    checkpoint57w_post
1197    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1198                 fix the singleCpuIO RS version of MDSWRITEFIELD
1199       and add a WARNING if using globalFiles=T with multi-processors.
1200    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1201      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1202    o tracer advection scheme:
1203      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1204       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1205       was not very convenient).
1206      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1207       (further tests needed for the implicit DST & Flux-Limiter schemes).
1208    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1209      and sRef for convenience, handy, when you want to initialize
1210      ptracers in a large domain with a constant non-zero value. Also,
1211      untangle ptracers_init.F a little.
1212    
1213    checkpoint57v_post
1214    o change dome exp. to use variable viscosity in side-drag terms.
1215    o remove all the files from the cfc_offline test since they are now
1216      incorporated into tutorial_cfc_offline which has been producing
1217      identical results for a few days of testing
1218    o add new parameter: sideDragFactor to enable half-slip-side BC
1219      and change side-drag S/R to use viscosity from mom_calc_visc
1220      (can switch back by setting sideDragFactor=0.); affects results at
1221      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1222       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1223    o vorticity & strain are now computed without masking, to account for
1224      no-slip-side BC in variable viscosity calculation ; mask is applied
1225      anyway later on, before computing advection/coriolis terms.
1226    o modify exp4 to test new obcs support for reading from external files
1227      and for passive tracers
1228    o fix behavior of ptracers_monitor when monitor output is written to a
1229      netcdf-file; still not independent of monitor.F (writes in the same
1230      file).
1231    o change default value of tRef (put a uniform, meaningful value for ocean
1232      & atmos) and initialize sRef (was missing, as Martin mentioned).
1233    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1234      to be proportional to enstrophy dissipation length.  Thus,
1235       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1236      This is now consistent with Smagorinsky and with the manual.
1237    
1238    checkpoint57u_post
1239    o OBCS and PTRACERS: add open boundary support for passive tracers
1240      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1241        OB-values from file; this is not different from the way theta and salinity
1242        are treated
1243      - however, Orlanski-radiation conditions are not supported, and the model
1244        will stop if you use pTracers and Orlanski at the same time.
1245      - beefed up the rountine obcs_external_fields_load: now only those open
1246        boundary values are overwritten with values from files for which there
1247        are really files, otherwise the OB-fields remain untouched. This makes
1248        it possible to use different OBs at different ends of the domain (as
1249        with EXF)
1250    o reduce number of exch calls in shap_filt (s2).
1251    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1252      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1253    
1254    checkpoint57t_post
1255    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1256    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1257      same truncation, independent of the face number: affects affects several
1258      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1259    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1260      note that biharmonic viscosity + no-slip was not tested in any experiment.
1261    o fix bug in non-linear free-surf side-drag ; generate new output for
1262      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1263    o make mnc honor the writeBinaryPrec flag for most kinds of output
1264    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1265    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1266      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1267    o add brackets in multi-terms sum to get same truncation, independent of
1268      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1269      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1270    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1271      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1272      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1273      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1274      Suggested values of viscosity parameters found in mom_calc_visc.
1275      Many new viscosity diagnostics available.
1276    
1277    checkpoint57s_post
1278    o Add clearing-house for viscosity calculations, mom_calc_visc and
1279      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1280      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1281      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1282      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1283      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1284      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1285      ViscAhStrain and viscAhTension are now retired.
1286    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1287    o In response to JMC's bug report, genmake2 now ignores any soft-links
1288      that it finds in the *current* directory when searching for files.
1289      Soft-links found in any other source directories will still work as
1290      they did before.
1291    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1292      a C routine to unlimit the stack size
1293    o mnc-ify pkg/aim snapshot vars
1294    o mnc-ify pkg/land as requested by Daniel
1295    o various changes to mnc including:
1296      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1297      - output can now be grouped so that all files within a group
1298          change the ITER portion of their names in lock-step together
1299      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1300          and works with both EXCH1 and EXCH2 (but needs more testing)
1301      - writing works for all verification test cases w/ g77 on Linux
1302    
1303    checkpoint57r_post
1304    o make MNC variable initialization happen earlier
1305    o add diagnostics for (almost) each term of the momentum Eq.
1306    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1307    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1308    o remove MINIMAL_TAVE_OUTPUT option ;
1309      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1310    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1311      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1312    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1313    o add time-dependent SST, SSS control
1314    o cost terms in ecco/ modularized (new cost_generic.F)
1315    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1316    o new infrastructure for seaice model vs. obs misfits in seaice/
1317      * driver from the_main_loop.F is seaice_cost_driver.F
1318      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1319      * gradient check in Exp. 6a of natl_box_adjoint/
1320    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1321      (see README file)
1322    
1323    checkpoint57q_post
1324    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1325    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1326      - bug was reported by Jean-Michel and Ian Fenty
1327    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1328      update exp. cpl_aim+ocn output.
1329    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1330      Needed for high-res. runs with large global files
1331      to be able to limit tapelev size
1332    o Changed some tests for adjoint:
1333      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1334      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1335      * global_ocean.90x40x15/ back to default 3-level checkpointing
1336    o Modifications to enable scripted COMMON to MODULE conversion
1337      * verification/OpenAD/code/ has necessary scripts and description;
1338      * converts, compiles and runs successfully;
1339    
1340    checkpoint57p_post
1341    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1342    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1343      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1344    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1345    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1346      (was already the case for dissipation with mom_vecinv,
1347       and also the case for grad.PhiHyd when staggered-timeStep)
1348      This will allow to put dissipation out-off the AB time-stepping.
1349     Unfortunately, affects truncation error. Update output of exp. that "fails"
1350      (cg2d matching number) and leave the others for later: front_relax(10),
1351      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1352      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1353    
1354    checkpoint57o_post
1355    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1356      (2) its ready to be documented during the 20050801 DocFest
1357    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1358      for ideal_2D_oce and lab_sea on linux_ia32_g77
1359    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1360      in global1x1_tot/code_seaice_adj to access indices 32, 33
1361      (worth another tag)
1362    
1363    checkpoint57n_post
1364    o adding precip control xx_precip 32
1365    o adding swflux control xx_swflux 33
1366    o Replacing 10 forcing penalty cost routines by 1 generic.
1367    o Implementing partitioning in time-mean and variable adjustment
1368      for atmos. state.
1369    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1370    o in natl_box_adjoint:
1371      * updated exp 1 to 10
1372        (but does not have time-mean vs. variable split results yet)
1373    o updated global1x1/*_seaice_adj/
1374      to incorporate latest changes
1375    o enable useSingleCpuIO for mdsio vector routines
1376      (applies in particular to tapelev I/O)
1377    o removed inefficient K-loop in all active_file*control*.F
1378    
1379    checkpoint57m_post
1380    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1381      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1382    o pkg/exch2: filling of face-corner halo regions is optional
1383      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1384    
1385    checkpoint57l_post
1386     tag before updating tutorials (pre-release-2)
1387    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1388       for output and interpolation of input fields onto model grid)
1389    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1390       Affects results of exp. rotating_tank ; update output.txt.
1391    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1392          and taking the square quantity and/or using a fraction-weight field.
1393    o fix aim_diagnostics_init.F mate numbers.
1394    o add mnc output capability to diagnostics/diagstat and update
1395      our cvsignore files for the ACSII output generated
1396    
1397    checkpoint57k_post
1398    o lab_sea now uses diagnostics package and provides a suite of
1399      new EXF diagnostics output.
1400    
1401    checkpoint57j_post
1402    o exf
1403      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1404        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1405        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1406      * extended diagnostics output
1407        - now includes all EXF variables
1408        - hs, hl moved to common block
1409        - separate S/R for diagnostics, called after ctrl vector is added
1410        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1411        - EXFqnet contains true Qnet (i.e. includes qsw)
1412      * updated verif. lab_sea, global_with_exf
1413      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1414        to ensure that diagnostics sees a true EXFqnet
1415    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1416    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1417      several times with different frequencies.
1418    o mnc-ify the thsice package as requested by Daniel Enderton
1419      - the monitor--MNC output needs work
1420      - many attributes need to be added (most are currently blank)
1421    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1422      - many attributes need to be added (most are currently blank)
1423    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1424    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1425    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1426      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1427         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1428    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1429     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1430    
1431    checkpoint57i_post
1432    o Diagnostics package was changed: diagnostic allocation is now deactivated
1433      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1434    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1435      add 1rst Order upwind vertical Shear.
1436    o add a quick fix for A/B checkpointing in OFFLINE mode
1437    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1438      end-run around the C/Fortran linking horror in eesup/src/timers.F
1439    o added pkg/runclock: allows user to terminate run based on wall clock
1440    o added non-hydrostatic scaling parameter: nh_am2
1441    o pkg/my82: futile attempt to make results compiler-independent by adding
1442      some "_d 0", etc. no effect.
1443    o for mnc output, fill the 'T' coordinate var with myTime and create a
1444      separate 'iter' variable for iteration count
1445    o pkg/diagnostics:
1446      add new capability: output of Global/Regional & per-level statistics ;
1447      tested against monitor output (including land & thSIce) on various exp.
1448    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1449    
1450    checkpoint57h_done
1451      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1452      data.diagnostics, data.gchem, data.ptracers) is done.
1453    
1454    o pkg/diagnostics: prepare for Global/Regional statistics.
1455      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1456    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1457      and rename it: DIFFERENT_MULTIPLE
1458    
1459    checkpoint57h_post
1460    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1461    o pkg/diagnostics: change output frequency, now in seconds (instead
1462      of Nb of iterations). This requires to change data.diagnostics.
1463    checkpoint57h_pre
1464    
1465    o in mnc, let the user create the output dir if both mnc_outdir_date
1466      and mnc_outdir_num are false
1467    o add fflags() to pkg/diagnostics which allows one to specify, on a
1468      per-file basis, the file precision [default behavior is unchanged]
1469    o added diagnostics to pkg/kpp, including computation of mixed layer
1470      depth based on a temperature/density criterion
1471    o updated verification/natl_box to test the new pkg/kpp diagnostics
1472    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1473    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1474    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1475      not mnc -- this mistake was found by JMC and is now corrected
1476    
1477    checkpoint57g_post
1478    o add Adams-Bashforth 3rd Order time stepping:
1479      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1480      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1481    checkpoint57g_pre
1482    
1483    o make lambda[Theta,Salt]ClimRelax spatially varying
1484      (default remains spatially uniform constant based on tau)
1485    o added new control variables
1486      * init. uVel, vVel, etanN
1487      * lambda[Theta,Salt]ClimRelax
1488    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1489      (suggested by G. Forget)
1490    
1491    checkpoint57f_post
1492    o add parameter "baseTime" = model base time = time at iteration zero
1493      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1494      account for baseTime shift
1495    o move Coriolis arrays from PARAMS.h to GRID.h
1496    checkpoint57f_pre
1497    
1498    o mnc-ifying the seaice package
1499    o introduced an alternative length scale calculation for use in the limiting
1500      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1501    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1502    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1503      as well as grad(vort3).  Made it compatible with both approximate form
1504      for the cubed sphere and full form of these gradients.  Added flag
1505      useFullLeith to select between approximate and full form.  
1506    o add "d0" in getcon.F to reduce differences between compilers/platforms
1507      update output.txt of exp. fizhi-gridalt-hs
1508    o change port_rand funtion to allow to set the seed.
1509    o fix obscure MNC bug involving conversion between reals and integers
1510      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1511        new version is now more standards-compliant
1512    o adjoint-related modifications
1513      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1514      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1515      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1516    
1517    checkpoint57e_post
1518    o Adding eddy stress controls a la Ferreira et al.
1519    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1520    
1521    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1522      update output.txt of exp. fizhi-gridalt-hs
1523    o add more "Z" dimensions and associated coordinate vars to MNC
1524    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1525    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1526      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1527      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1528      months and years.  Requires pkg/cal.
1529    o diagnostics: add pickup functionality
1530      - off by default for backwards compatibility
1531      - current version only uses MDSIO -- MNC will be added
1532    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1533    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1534    
1535    checkpoint57d_post
1536    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1537    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1538      output from the diagnostics package
1539    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1540    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1541      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1542    o add coordinate variables to the MNC output from the diagnostics package
1543    o change MNC-flags default value: true when useMNC=TRUE
1544    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1545      the ability (off by default) to read the grid information using MNC
1546    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1547    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1548    o do snap-shot diagnostics at the middle of the time-interval (instead of
1549      at the end).
1550    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1551      new test for AIM with thSIce + slab-ocean
1552    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1553    o move state variable diagnostics to the beginning of the time step ;
1554      (note: still needs some work specially for snap-shot diagnostics)
1555      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1556    
1557    checkpoint57c_post
1558    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1559    o generate new output.txt files on faulks with g77 & the new -ieee option
1560    checkpoint57c_pre
1561    
1562    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1563      update output.txt of exp. global_ocean.90x40x15
1564    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1565      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1566    o add saltFlux(+File) forcing capability with periodicExternalForcing
1567    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1568    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1569    o improvements for the MNC output from DIAGNOSTICS:
1570      - correct handling of the unlimitied dimension
1571      - all dims now have associated coordinate variables
1572      - variables located at U, V, and Corner ("Z") points are now written
1573        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1574        *all* data points are output
1575    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1576    o added pkg/seaice/seaice_monitor.F
1577    o mdsio_readfield.F can now read files visible only to master MPI process.
1578    o pkg/seaice: some test code for ice-modified ocean stress
1579    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1580      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1581      spurious negative numbers for precipitation and humidity.  Will cause
1582      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1583    o pkg/ctrl/
1584      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1585        May be enabled via doPackDiag
1586      *  introduce z-scaling of
1587         + gradient (doZscalePack) and
1588         + control (doZscaleUnpack)
1589    o pkg/mdsio/
1590      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1591      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1592    
1593    checkpoint57b_post
1594    o simplify options in diagnostics_fill arguments (remove weird combinations)
1595    o fix MNC coordinate variables so that they now contain per-face index
1596      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1597      general, EXCH2 grids are only aligned to a "local" coordinate system
1598    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1599    o Implement instantaneous output within pkg diagnostics:
1600      setting a negative frequency in data.diagnostics produces
1601     "snap-shot" output (as opposed to time-average if freq > 0)
1602    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1603      NOTE: change ptracer diagnostics name: use 2 characters to work with
1604            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1605    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1606      becomes the coordinate variable for the 'T' dimension
1607    o add CF-style coordinate variables to MNC
1608      - just a first cut:  numbers are meaningless on the cubesphere and
1609        missing along the T axis but otherwise it works!
1610    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1611    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1612    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1613      this is based directly on what the model compute, so that the content of
1614      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1615    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1616    o clean up build options files for SunOS, in particular
1617      - remove -traditional from xmakedepend
1618      - change -xarch=v9 to -xarch=native for f77
1619      - restore use of make (not gmake)
1620      - add CC=gcc if using g77
1621    o changes per discussion of AM, JMC, & EH3 today:
1622      - move redundant "grid" variables out of "state" -- in preparation of
1623        creating proper CF-style coordinate variables and in recognition
1624        that any/all grid variables can be easily copied (eg. w/NCO) from
1625        the grid files into any of the other NetCDF files
1626      - *always* output grid variables with MDSIO (this will eventually be
1627        changed)
1628      - output MNC grid file if useMNC is true
1629    o every instance of _END_MASTER() has been found and replaced with
1630      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1631      preprocessors
1632    o re-arrange diagnostics pkg initialisation:
1633     - allow each package to extend the available diagnostics list
1634     - add some checking and fix small problems (multi-threaded, ...)
1635     - new S/R diagnostics_fill (replace fill_diagnostics):
1636       look through the short list of active diag. (instead of the long list)
1637       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1638    
1639    checkpoint57a_post
1640    o this set of changes restores TAMC compatibility
1641      tested for global_ocean.90x40x15 adjoint on trough
1642      (what a pain)
1643    
1644    checkpoint57a_pre
1645    o some modifs in tools/build_options for sunos
1646    o call ctrl_pack for ctrl at end for optimcycle=0
1647    
1648    checkpoint57
1649    o add horizontal bi-harmonic viscosity for vertical velocity
1650      - new parameter viscA4W (defaults to viscA4)
1651      - affects only non-hydrostatic code
1652      - to be done: no-slip lateral boundary conditions
1653    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1654    o implement Implicit Vertical advection for pTracers
1655    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1656      (implemented also for implicit vertical diffusion & advection)
1657    o OBCS: extend application of tracer open boundary conditions
1658      to a strip beyond the boundary of width Olx/Oly
1659    o add call monitor to TAF set of required calls (flow directives)
1660      and include in natl_box_adjoint
1661    o untangle a few ifdefs related to cost, ctrl, autodiff
1662      untangel a few ALLOW_ECCO_OPTIMIZATION
1663    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1664      (theta2, salt2 in ecco_cost_weights)
1665    
1666    checkpoint56c_post
1667    o OBCS as control variables
1668      - update ctrl_ad_diff.list, obcs_ad_diff.list
1669      - remove balance of obcs controls from default
1670      - fix index bug nobcs in ctrl_init
1671      - fix dummy fields filen in ctrl_pack
1672      - add dummy weights for obcs
1673    o lsopt: comment out fort.94 output
1674    o optim:
1675      - remove unnecessary header files
1676      - adjusted namelists
1677      - add xerbla.F to Makefile
1678    o exf:
1679      - multiple modifications of exf_check_range
1680      - unit change in exf_init_runoff from [m/year] to [m/s]
1681    o mdsio:
1682      - i/o-vector change debugLevel from debLevA to debLevB
1683    
1684    checkpoint56b_post
1685    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1686      is called from DO_THE_MODEL_IO
1687      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1688      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1689      - clean up PTRACERS_WRITE_TIMEAVE a little
1690    o add another verification experiment that tests both the cfc-pkg and
1691      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1692      reactive tendencies treated inline with regular timestepping
1693    o testreport previously did a lousy job of comparing small numbers, so
1694      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1695      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1696      testreport.
1697    o ptracers_monitor: bug fix for MPI
1698    
1699    checkpoint56a_post
1700    o GCHEM: finish reorganizating the package
1701      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1702        (introduces another 3D-array for each passive tracer, but only if
1703        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1704        gchemTendency is not needed because the timestep is done separately)
1705      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1706      - GCHEM is now---more or less cleanly---separate from PTRACERS
1707      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1708        so clear to me how that should be done in a general way.
1709    o CFC: improve formatting of output in CFC_ATMOS
1710    o PTRACERS:
1711      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1712        that ALL experiments with ptracers enable can be checked. This makes
1713        GCHEM_MONITOR obsolete.
1714      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1715        monitorFreq
1716      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1717    o add PTRACERS (PTR0[1-5]) to testreport output
1718    o exf_check_range:
1719      * default changed to .TRUE.
1720      * will check values for niter0 if debLevA, every timestep if debLevB
1721      * STOP in exf_check_range if 'out of range'
1722      * range chosen generous to allow for potential extema
1723      TBD: a version with stricter range
1724           permitted range would be runtime parameters
1725  o GMredi:  o GMredi:
1726    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1727    - 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 1730  o GCHEM:
1730    - 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
1731      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1732    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1733      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1734        this flag is now only visible within GCHEM-pkg routines.
1735      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1736        be replaced by a 3D array that is computed before thermodynamics; for
1737        this, the tracer ID iTracer had to be included into the parameter list
1738        of ptracers_forcing
1739      - set up forward_step to call gchem_forcing, that will replace
1740        gchem_forcing_int in ptracers_forcing
1741      - cleaning up
1742  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
1743    
1744  checkpoint56  checkpoint56

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