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revision 1.223 by jmc, Sun Dec 14 23:30:13 2003 UTC revision 1.945 by mlosch, Thu Jan 24 18:41:16 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/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
8      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
9      subroutines (which could be generated from a template, because they are
10      almost identical), for now they are included in obcs_prescribe_read.F for
11      simplicity
12    o pkg/exf:
13      - add a little more diagnostic to exf_interp_read (in analogy to
14        mds_read_field, can be turned off with debugLevel < debugLevA=1)
15      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
16        ugly but fast by unrolling short inner loops, inserting a unroll=8
17        directive in routine lagran, and splitting a loop and making do while the
18        outermost loop (the latter requires the intoduction of index arrays)
19    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
20    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
21      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
22    o verification/seaice_obcs: updated for restart test and latest options
23    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
24      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
25      for now this is only available for the C-grid code and also within
26      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
27    
28    checkpoint59m
29    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
30      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
31    o gad_som : fix flux output (& diagnostics) to have same units as other  
32      advection scheme fluxes (was previously multiplied by deltaT).  
33    o added verification/seaice_obcs both to test seaice open boundaries
34      and to provide an example matlab scrpt for generating them
35    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
36    o pkg/salt_plume: clean up salt_plume_frac.F to
37      remove redundancy in PlumeMethod 1 and 4
38    o pkg/kpp: added saltplume diagnostics
39    o pkg/obcs and pkg/seaice:
40      - do not set uice and vice to zero when OB*icefile are unspecified
41      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
42      - moved seaice tracer obcs after call to seaice_growth
43    o pkg/salt_plume: added various options for salt plume depth
44      criterion and for vertical distribution of the salt
45    
46    checkpoint59l
47    o pkg/ptracers: new version of ptracers pickup:
48      read meta file and write only fields which are needed to restart.
49      ( same logic as main pickup file ; also using pickupStrictlyMatch )
50    o pkg/seaice:
51      - add timescale for melting due to warm mixed layer as a means of
52        setting SEAICE_availHeatFrac more conveniently
53      - add a CPP-flag/runtime parameter check for flooding algorithm
54      - reformulated availHeat in seaice_growth.F to be independent of AREA
55    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
56      unit changes
57    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
58    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
59      SX vector computer.
60    o pkg/seaice:
61      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
62        seaice forcing fields can now be read only through pkg/exf
63      - removed some unused halos
64    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
65    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
66      or U/VICE from U/VWIND before computing U/VSTRESS
67    
68    checkpoint59k
69    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
70      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
71    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
72      all experiments pass when compile with un-initialised var. checking option.
73    o added pkg/salt_plume
74    o script to test restart (for now, in MITgcm_contrib/jmc_script)
75    o pkg/seaice: new read/write pickup version.
76      read meta file and write only fields which are needed to restart.
77      ( same logic as main pickup file ; also using pickupStrictlyMatch )
78    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
79    o lab_sea.hb87: modify the domain & update output.hb87.txt :
80      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
81      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
82      process. Fixed here by closing the domain at the Northern boundary.
83    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
84    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
85      a set of consecutive levels in/from a 3-D array.
86    o pkg/ptracers:
87      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
88      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
89    
90    checkpoint59j
91    o in pkgs: dic, obcs, offline, rbcs:
92      standard way to compute coeff. for time interpolation between 2 time reccords
93      which retains full precision (& make results less dependent on compiler).
94      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
95    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
96      packages instead of reading ice cover and wind speed separately
97    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
98     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
99      to allow to compile customized code before the update)
100    o cleaning-up:
101      - fix CPP instruction syntax in pkg/obcs
102      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
103        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
104      - fix some threads issue in IO parts.
105    o pkg/dic:
106      - add tons of "_d 0" (--> much better testreports !)
107       and then update outputs of tutorial_global_oce_biogeo
108    o pkg/mom_fluxform:
109      add a special version of momentum advection intended to conserve momentum
110      next to a bathymetry step or a coastline edge. (default = off = #undef)
111    o new read/write pickup version:
112      - for now, only implemented for main (mdsio) pickup file.
113      - write out only what is needed to restart; merge pickup_nh , pickup_ph
114        and main pickup together.
115      - read meta file; read only what is needed to restart; stop if a field
116        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
117        if it make sense (even if the restart is not perfect).
118      - if no meta file, assume that pickup to read corresponds exactly to
119        a pickup that would currently be written.
120      - read pickup written in the old format (until checkpoint59i) if it
121        recognizes an old meta file (no field-list).
122      - add a meta file in exp. which starts from a pickup: 2 cases:
123        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
124         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
125        b) a meta file describing the content of the associated pickup file
126         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
127    o pkg/mdsio & pkg/rw:
128      - new routine to read a meta file ; new set of routine to read
129        Multiple-fields file (with meta file).
130    o added open boundary conditions capability for seaice
131        HSNOW, HSALT, UICE, and VICE
132    
133    checkpoint59i
134    o adjoint:
135      * fix multiDimAdvection adjoint
136        (partial recomputation problem by TAF for fVerT(:,:,kDown)
137        and comlev1 size definition (maxpass vs. max. number of tracers)
138      * verification/global_ocean.90x45x15 adjoint now tests
139        NLFS and multiDimAdvection using DST3 (=30)
140      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
141    o pkg/kpp: add "_d 0" to real constant (if missing);
142      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
143      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
144    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
145      for internal parameters related to restart process (formerly from PARAMS.h)
146      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
147    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
148      as argument. (only atm2d & obcs write_pickup have not yet been updated)
149    o pkg/monitor:
150      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
151      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
152      - account for deep Atmosphere factor and density factor (anelastic)
153    o added open boundary conditions capability for seaice HEFF and AREA
154    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
155      thermodynamics
156      - requires a little reorganization, which affects the testreport results
157        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
158        so that now the conservative form is tested
159      - add a few comments
160    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
161    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
162    o add new diagnostics to seaice: advective, diffusive fluxes (only for
163      multidim-advection, for scheme 2 they are not filled) and transports,
164      thermodynamic growth rates
165    o change units of EmPmR (inside the code, + within coupling interface)
166      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
167      Affects results @ truncation level (cg2d match) and update output of
168       experiments: lab_sea(6), global_ocean.90x40x15(10),
169      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
170      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
171      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
172      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
173    
174    checkpoint59h
175    o pkg/exf:
176      - improve vectorization by moving if-statement out of loops in
177        exf_mapfields, exf_radiation
178      - exf_bulkformulae.F: introduce 2D fields and vectorize code
179    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
180    o testreport:
181      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
182        monitor & update offline_exf_seaice exp. output.
183      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
184    o pkg/seaice:
185      - bug fix in the evp solver: boundary conditions were affected be
186        masking of zMax/zMin (changes results)
187      - minor bug fix in boundary conditions in seaice_calc_strainrates
188        (changes results for no_slip)
189      - seaice_lsr.F: make interpolation of eta dependent on boundaries
190      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
191      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
192        stress formulation and no-slip boundary conditions
193    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
194      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
195    o pkg/seaice: a first HSALT time stepping equation has been checked in
196    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
197      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
198      without requiring DO-IF statements
199    o pkg/thsice:
200      use continuous power-law function for partition of energy between lateral
201      melting/freezing and thinning/thickening ; old code using step function
202      still available with #undef THSICE_FRACEN_POWERLAW
203      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
204    o testreport: change AD testing : check against results/output_adm.txt
205      using same scripts as for forward test.
206    
207    checkpoint59g
208    o adjoint testing: in preparation for changing testreport:
209      - output format: cost and grad written on separated lines
210      - ad output results in directory "results" (instead of "results_ad")
211    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
212    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
213    o pkg/ecco: allow user defined cost function contributions
214    o testreport:
215      Allow to choose (per experiment) the list of tested output variables
216       and the main variable (used to issue a pass/FAIL ) ;
217      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
218      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
219      Also modify printing of summary:
220       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
221       b) echo the list of tested variables in the individual summary.txt of
222          each experiment.
223    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
224      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
225      (but still depend on the tile decompostion of the domain).
226    o pkg/seaice: change a discretization detail to make the B-grid code
227      "more symmetric". This change is likely to remove all "ridges/leads" that
228      where quasi-aligned with the grid in B-grid solutions. It may also be
229      the solution to the stress coupling issues with the B-grid.
230    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
231      remove .cvsignore from input dir. (since testreport no longer run here).
232    o pkg/thsice:
233     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
234     - fix reshaping of sea-ice just after advection:
235       melt all the ice only if ice-volume is too small.
236     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
237       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
238     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
239    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
240      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
241    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
242      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
243      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
244      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
245      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
246      -> update output.txt
247    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
248     this affects truncation error: -> update output.txt of exp:
249      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
250      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
251    
252    checkpoint59f
253    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
254    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
255      a bounded range (in forward mode)
256    o pkg/ecco, ctrl, autodiff and mom_common:
257     internal parameter controls, completements of implementations
258    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
259    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
260      (not seem any difference in testing results).
261    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
262       at face corners.
263    o pkg/generic_advdiff:
264     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
265      loop range indices for computing vertical advection tendency
266      and do the calculation in the interior only (no overlap) ;
267      for now, only implemented for SOM advection (to save CPU time).
268     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
269    o exch2 adjoint
270      First set of changes:
271      - add exch2 hand-written adjoint templates
272      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
273        This will require cleanup in pkg/autodiff/*.F
274        (changed routines currently kept separate in verif. code/)
275      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
276        that used to hide exch2 or cubed-sphere specific code
277        (commented via 'cph-exch2')
278    o pkg/seaice
279      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
280    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
281       output of global_ocean.cs32x15.thsice .
282    
283    checkpoint59e
284    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
285      for B-grid vector (not yet tested) and C-grid vector (<- only used
286      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
287    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
288      (#ifdef ALLOW_SALT_PLUME)
289    o gather_2d/scatter_2d: removed halo regions
290    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
291      scheme and the corresponding test case (under front_relax dir). For now,
292      only available with Skew-flux form and not yet tested in realistic set-up.
293      adjoint: store directives updated, but gradient checks deteriorated,
294      so maybe GM/Redi adjoint is now broken.
295    o seaice adjoint
296      * add AREA, HEFF, HSNOW as control variable
297        (should not change lab_sea results)
298      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
299    o pkg/seaice:
300      * added computation of saltFlux in seaice_growth;
301        For time being, sea ice salinity is assumed constant
302        contribution of snow flooding to freshening of sea ice is neglected.
303        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
304        defaults to 0.0 in order to maintain backward compatibility.
305        Typical values for SEAICE_salinity are 4 to 10 g/kg.
306      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
307      * added SEAICE_availHeatFrac, which specifies fraction of surface level
308        heat content used to melt or grow ice
309      * commented out cap of HICE: it helps keep ice thinner
310      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
311      * applied OBCS T/S mask to HEFFM sea ice mask
312    
313    checkpoint59d
314    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
315     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
316     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
317    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
318     and change default value of parameter "GM_Small_Number";
319     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
320       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
321       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
322    o pkg/ecco: cost function when applying pkg/smooth to controls
323    o pkg/ctrl: add forcingPrecond run time parameter
324    o pkg/seaice:
325     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
326     - fix bug in metric terms of u-equation in LSR solver (implicit part),
327       changes verification/lab_sea
328     - rearrange implicit part of u-equation in LSR solver to make it easier to
329       read, understand, and debug. This causes changes at the truncation level.
330     - fix (serious) bug in the boundary conditions (sign error in the implicit
331       part) of the LSR solver. Changes all LSR results.
332     - fixed problem with HSNOW initialization to avoid thick snow when AREA
333       is initilized with small values - does not change lab_sea results.
334     - added HsnowFile initialization capability
335    o pkg/smooth: addition to model/src and pkg/ctrl so allow
336     initialization of pkg/smooth and application to control vector
337    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
338    o dependencies: pkg/profiles requires pkg/cal
339    o pkg/profiles:
340     - added option ALLOW_PROFILES_GENERICGRID
341         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
342         that interpolation information (grid points and coefficients) is provided
343         within the netcdf input files.
344         -> sample matlab scripts can be found in MITgcm_contrib/gael
345         that allow you to prepare netcdf input files.
346     - also modified: cleaner include statements, cleaner error print statements,
347       cleaner stops when error, and more tests of the netcdf input files consistency.
348    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
349    o pkg/seaice:
350     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
351       requires a new routine: seaice_diagnostics_fill.F
352     - make sure that seaice does not move if not forced (pressure replacement
353       method, Hibler and Ip, 1995), changes results
354     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
355     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
356       It is turned off by default (=-1.), because it changes the results.
357     - make it possible to read AREA from a file, too.
358    
359    checkpoint59c
360    o add S/R and diagnostics for oceanic mixed-layer depth
361    o move GMRedi call after all vertical mixing schemes (including KPP)
362    o pkg/thsice:
363     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
364      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
365    o pkg/obcs:
366     - bug fix for balance code
367    o pkg/seaice:
368      - allow values of SEAICE_elasticParm > 1
369      - add new parameter SEAICE_evpTauRelax as an alternative
370        to SEAICE_elasticParm
371      - make lsr boundary conditions free slip (by default), changes result
372      - add code for no slip boundary conditions for lsr
373      - set minimum of zeta to zero (and not 4e8) (changes results)
374      - add a cap on AREA after advecting AREA if seaice_growth is not called
375    o change calculation of Visbeck K:
376      - no longer depend on tapering scheme; instead, compute slope (limited
377        by GM_maxSlope). this is equivalent to what was comuted before with
378        clipping or linear tappering.
379      - fix vertical averaging (wrong by 1/2 level)
380      - leave the old version (but will not be maintained) within
381        #ifdef OLD_VISBECK_CALC / #endif
382      - update output of exp. ideal_2D_oce
383    o change error catch in calc_r_star to improve vectorization
384    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
385      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
386    o adjoint:
387      Re-organized adjoint checkpointing according to Matt Mazloff
388      (but with modifs/completions/cleanups)
389      Storing is now bundled into large arrays to optimized I/O
390      (and second step in cleanup of the_main_loop)
391    
392    checkpoint59b
393    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
394      - export/import (between ocean & coupler) fields needed for ocean DIC.
395    o pkg/seaice:
396      - get rid of three more exchanges seaice_calc_viscosities (required
397        different loop boundaries in seaice_lsr and seaice_ocean_stress)
398      - bug fix in seaice_ocean_stress (update of lab_sea required)
399      - reduce loop boundaries to necessary minimum also in seaice_evp
400      - go back to the old way of computing deltaC/Z as the adjoint likes that
401        better
402    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
403      passive tracer to an Age Tracer) + update output.txt
404    o pkg/exf:
405      - implement A-grid / C-grid selection for wind-stress input files.
406      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
407      for now, in exf_bulk_largeyeager04.F only :
408      - change implementation for case where windspeed + 2. components wind-stress
409        are read-in. AND use rhoConstFresh to convert evap.
410    o pkg/seaice:
411      - use correct EXCH_UV for wind-forcing (on A-grid).
412      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
413        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
414    o pkg/exf:
415      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
416      EXF_INTERPOLATION:
417      - merge global_with_exf/code version of exf_interp_read.F
418        to the main code ;
419      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
420        reading the file ; Important: This options needs to be defined to recover
421        previous code.
422        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
423      - no longer loose real*8 precision along the way when using exf_iprec=64.
424    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
425      - change discretisation of evp-solver in order to avoid another exchange
426        (changes lab_sea) and clean up a little
427      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
428        help the adjoint (this also changes the results slightly)
429      - add a few "_d 0" where they had been missing in seaice_evp.F
430      - cleaning up: remove unused seaice_calc_rhs.F
431    o pkg/exf: some cleaning-up:
432      - change various "constants" into runtime parameters
433      - cleaned-up Large&Yeager04 routine which should eventually
434        replace exf_bulkformulae.F (changed names of S/R and CPP)
435        and merged various ALLOW_ATM_WIND options
436     only used with thsice pkg (in thsice_get_exf.F):
437      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
438        which are used when useStabilityFct_overIce=TRUE (= the default)
439      - change default values of ice & snow emissivity and scale downward LW
440        by ice & snow emissivity.
441    o pkg/thsice:
442     fix few little problems, in thsice_calc_thickn.F:
443      - growth vertically (and not laterally) if iceFrac == iceMaskMax
444      - melt only laterally if hIce < hThinIce (as the comments say)
445      and in thsice_extend.F:
446      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
447      - start to form ice as soon as the minimum ice-volume is reachable.
448     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
449      and cpl_aim+ocn
450    o pkg/kpp
451     - move computation of surface related input fields to KPP into a new
452       subroutine kpp_forcing_surf.F
453     - remove wrong (within bi,bj loops) EXCH calls.
454     - little cleaning (add argument myThid in last position, cvs header ...)
455     - for now, fix conservation problem by exchanging KPPviscAz (may not
456       be the best fix)
457    o pkg/seaice
458     - check for inconsistent evp parameter/cpp-flag combination
459     - remove leftover errIO flat for obsolete name list error handling
460    o OpenAD
461     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
462    
463    checkpoint59a
464    o pkg/seaice: some parameter clarifications and a little bit of clean up
465    o pkg/thsice: rename run-time parameters:
466       himin       -> hIceMin
467       himin0      -> hThinIce
468       hihig       -> hThickIce
469       i0          -> i0swFrac
470       transCoef   -> bMeltCoef
471       frac_energy -> fracMelting
472      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
473       with default values (for now) that do not change the results.
474      remove old version of thsice vars advection in pkg/seaice.
475    o in FFIELDS.h:
476      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
477      - make pLoad & sIceLoad always available (but still only used if
478         ATMOSPHERIC_LOADING is #define).
479    o pkg/kpp: replaced _KPP_RL with _RL
480    o bug fixes for vertical diffusivity computations when both KPP and
481        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
482        are no longer updating the vertical diffusivity array
483        (passed as argument) but are (re-) setting those arrays.
484    o pkg/seaice: fix bug in evp solver, while doing that
485      - change (improve?) discretization of stress computations for both
486        cgrid-lsr and evp solver
487      - add a new routine to compute strain rates
488      - the above changes lab_sea results
489      - add no slip conditions for evp solver (off by default), lsr-version
490        may follow
491      - fix exchange for shear at Z-points (does not change lab_sea)
492      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
493        (to force the user to pick a time step since there is not "safe" way
494        of choosing it)
495      - add principal stress diagnostics
496      - rearrange fields for evp a little to avoid having to call a: too many
497        exchanges and b: exchanges for stress trensor components which we do
498        not have.
499      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
500        of evp, complete rewrite for lsr case (latter is does not yet work
501        in all cases)
502    o pkg/kpp: add code to have mixing in shelf ice caverns
503      - add myThid to all kpp routines (long overdue)
504    
505    checkpoint59
506    o pkg/exf:
507      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
508        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
509      - move exf header files from lower_case.h to UPPER_CASE.h ;
510        add missing cvs Header & Name
511      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
512      - add namelist param. selectStressGridPosition, exf_monFreq
513      - retire many _CLIM routines, and remove data.exf_clim
514        + params moved to data.exf
515        + climsst, climsss now handled by exf_set_gen, i.e.
516          climss?period=0 refers to constant field,
517          climss?period=-12 to monthly forcing
518      - split up namelists in data.exf
519    o pkg/seaice:
520      - remove seaice_exch and seaice_exch_uv
521      - remove superfluous exchange of theta
522      - add myThid to seaice_budget_ocean/ice
523      - add new interface for atmospheric wind forcing (C-grid only)
524        + new routine
525        + two new field (taux, tauy for stress over ice)
526        + removed one global field (DAIRN) for C-grid case only
527    o pkg/thsise
528      - 2nd set of modifs for thsice adjoint in conjunction with exf
529    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
530    
531    checkpoint58y_post
532    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
533      vertical diffusivity, similar to that in MOM4; turned on using
534      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
535      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
536    o Added capability for 3D specification of background vertical diffusion
537      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
538      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
539      "data" file that contains the 3D vertical diffusivity coefficients.
540    o ice dynamics (pkg/seaice) with thsice thermodynamics:
541      - add code within pkg thsice to advect & diffuse sea-ice fields
542      similar to (and will replace) what has been added in  seaice_advdiff.F,
543      but: - conserving Mass, Heat & Salt.
544           - better when using non-linear advection scheme (not yet fully tested)
545           - can also be used in atmospheric set-up (for now, only the diffusion).
546    
547    checkpoint58x_post
548    o IO option for global-file compact format:
549      - add options when generating topology (utils/exch2/matlab-topology-generator)
550      - add I/O capability (pkg/mdsio).
551      - adapt utils/matlab/rdmds.m to read this format.
552      for now long-line format not yet supported by pkg/mdsio (& exch2).
553    o shelfice: add a few diagnostics
554    
555    checkpoint58w_post
556    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
557      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
558      (and replace horiVertRatio in NH code).
559      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
560                         and tutorial_plume_on_slope (sensitive to truncation)
561    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
562      directly to drive seaice model (C-grid only)
563    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
564     - reintroduce computation of wind from stress,
565     - compute tau (in exf_bulkformulae.F) from windstress averaged to
566       mass points to avoid tau = 0
567     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
568    o rdmnc.m: make it work with "global" files created with gluemnc
569    o rdmnc.m : some improvements in dealing with singleton dimension
570      (tested on all testreport mnc output files).
571    o genmake2: disable pkg/profiles if netcdf test fails.
572    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
573    o move call to cal_readparms up to make calendar parameters/variable available
574      to all packages
575    
576    checkpoint58v_post
577    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
578      useDynP_inEos_Zc tested.
579    o pkg/exf: changes to properly interpolate/mask/scale initial fields
580    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
581      and portions thereof.  See read_cs.txt for description and examples.
582    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
583      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
584      following the great-circle arc between those 2 points.
585    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
586      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
587    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
588     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
589     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
590     - still needs work (not working with some options ; efficiency to improve)
591       and serious testing.
592     - use this scheme for temperature & salinity in 2 advection test exp.:
593       advect_xy & advect_xz, respectively.
594    
595    checkpoint58u_post
596    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
597    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
598    o testreport: add option "-skipdir" to skip some test.
599    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
600      momentum calculation.
601    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
602    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
603      remove checkpoint.F and the_correction_step.F (no longer used);
604      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
605    o add option (linFSConserveTr) to correct for tracer source/sink due to
606      Linear Free surface
607    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
608    o pkg/thsice: fix reading mnc-pickups
609    
610    checkpoint58t_post
611    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
612    o pkg/mdsio:
613     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
614       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
615       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
616     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
617     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
618       either MDS_READ_FIELD or MDS_WRITE_FIELD )
619     - new S/R (to replace MDSWRITEMETA), which allows to write more
620       informations (variable names, time ...) to meta files.
621     - modify rdmds.m to give back the meta file content.
622    o pkg/diagnostics: change vertical interpolation to be safer, and more
623       flexible (define p-levels to interpolate to in data.diagnostics);
624      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
625       diagnostic pointer.
626    o pkg/seaice: more cleaning up of seaice_growth, added many comments
627    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
628    o fix multi-category seaice:
629     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
630       SEAICE_MULTICATEGORY
631     - fix short wave heat flux
632    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
633       and allow to use EVP solver. Change forward lab_sea: test both EVP
634       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
635    o Initial check-in of lab_sea adjoint
636      (very similar to natl_box_adjoint/code_seaice)
637      * used C-grid and EVP solver
638      * used KPP, GM/Redi
639      * uses inAdExact=.TRUE.
640      * gradient checks fail for both ADM and TLM
641        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
642        f.d. gradients actually seem more problematic than ADM, TLM gradients;
643        issue is related to forward mismatch between g77 an ifort
644    o pkg/seaice: overhaul of thermodynamics
645     - growth.F and groatb.F are replaced by new routine seaice_growth.F
646     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
647     - move a few global fields out of SEAICE.h into seaice_growth.F and
648       make them 2D (FICE/QNETO/ ...)
649     - remove FO (it is the same as QNETO)
650     - introduce a few local fields to avoid modifying external fields such
651       as atemp, etc.
652    
653    checkpoint58s_post
654    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
655      changed exf_set_gen.F so that
656        genperiod=0 means input file is one time-constant field and
657        genperiod=-12 means input file contains 12 monthly means
658    o CG2D: use pre-computed solver main-diagonal (stored in common block);
659      this affects truncation error ; generate new output file for exp. which
660      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
661        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
662        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
663        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
664        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
665        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
666    o start implementation of deep-atmosphere and anelastic formulation
667    o verification: remove 2nd copy of input files and use script "prepare_run"
668      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
669    o mom_common/vecinv/fluxform: fix a few initialisation isssues
670    o profiles: fix for multithreaded case
671    
672    o diagnostics: rename few diags:
673      s/'PRESSURE'/'RCENTER '/g
674      s/'TICE    '/'oceFreez'/g
675      s/'TAUX    '/'oceTAUX '/g
676      s/'TAUY    '/'oceTAUY '/g
677      s/'SWFLUX  '/'oceQsw  '/g
678      s/DIFx/DFxE/g
679      s/DIFy/DFyE/g
680      and add few ocean-forcing diagnostics:
681      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
682    o modifications to pkg/seaice/growth.F and budget.F, which change results of
683      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
684      as actual snow thickness.  It now refers everywhere to effective snow
685      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
686    
687    checkpoint58r_post
688    o modifications to pkg/seaice/growth.F, which change results of
689      lab_sea experiment: fixes pertain to melting snow over open water, to
690      masking EVAP under sea ice, and to using the correct AREA variable for
691      computations of EVAP, PRECIP, HSNOW, and GHEFF
692    o add ability to read bathy, salt, and theta using MNC (off by def)
693    o add flooding algorithm and advection of HSNOW for pkg/seaice;
694      both are turned off by default and do no change any results
695    o seaice advection with pkg/thsice: a step toward the use of non-linear
696      advection scheme, but #ifdef or commented out for now (requires more EXCH).
697    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
698      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
699      in natl_box (affects results @ truncation level: update output.txt)
700    o multi-threading and IO:
701      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
702      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
703        (needed to work with SingleCpuIO): tested in all verif. exp.
704    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
705      affects the results (but none of the verification test uses this scheme).
706    o Adding some pkg/diagnostics capability to pkg/seaice
707      (will certainly be subject to changes)
708    o ctrl: adding new control variables:
709      lwflux, lwdown, evap, snowprecip, apressure, runoff
710    
711    checkpoint58q_post
712    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
713      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
714      high_res_cube configuration by 4% on Columbia.
715    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
716      add (in global_with_exf/code) a version of EXF_INTERP_READ without
717      dynamical allocation (seems to work in multi-threaded).
718    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
719      single CPU io) so that TAF does not have to see EESUPPORT.h
720    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
721    
722    checkpoint58p_post
723    o obcs: stop if obcs is used with useCDscheme = .true.
724    o shelfice:
725     - fix a sign error so that no slip at shelfice interface works
726     - remove stop for combination non-hydrostatic code and shelfice. That does
727       not mean, that the results are correct, but at least they are numerically
728       stable
729    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
730    o added adjoint exch routined for all exch*3d* routines
731      and updated flow directives
732    
733    checkpoint58o_post
734    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
735      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
736    o change controling S/R for writing pickup file (new S/R do_write_pickup)
737      and clean-up reading/writing of pickup files.
738    o fix local version of read/write pickup (NH part) in rotating_tank/code
739    o simplify EXCH interface:
740     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
741     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
742    o added the regrid package
743    o shelfice:
744     - add a simple boundary layer scheme to reduce noise
745     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
746    
747    checkpoint58n_post
748    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
749       local variable (not in common block).
750    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
751      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
752      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
753        to work with SingleCpuIO.
754    o add "_d 0" to real constant of pkg/cfc subroutines ;
755       update exp. cfc_exemple & tutorial_cfc_offline output files.
756    o multi-threading and IO:
757      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
758        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
759      - barrier before and after reading.
760      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
761      - avoid using MDS_WRITELOCAL for LAND pkg output.
762      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
763        common-block variables ; Allows multi-threading with master-thread IO.
764    o change default MAX_NO_THREADS from 32 to 4 ;
765      and stop cleanly when MAX_NO_THREADS is too small.
766    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
767    
768    checkpoint58m_post
769    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
770       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
771    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
772       keep global_ocean.90x40x15 (for AD testing) with former secondary test
773       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
774    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
775        add MITgcm_tutorials (= code + all the tutorials)
776    o ecco, option to compute cost for total ssh (mean+anom)
777    o consistent with addition of ptracer and ssh in pkg/profiles
778    o profiles: adding ptracer and ssh
779    o testreport: change multi-test output-file name
780      (from output.txt.{name} to output.{name}.txt)
781    o profiles: now ok for mutli-tiles case
782    o seaice: add 4 parameters for different advection schemes for area,
783      (effective) seaice thickness, enthalphy, and snow height. Their default
784      is the standard parameter SEAICEadvScheme
785    o calc_gw:
786     - add cosFacU in zonal viscous flux (harmonic.visc.).
787     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
788       of tutorial_plume_on_slope.
789    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
790    o calc_gw: true flux-form, account for horizontal grid spacing.
791      update rotating_tank results, but not plume_on_slope (affected at
792      truncation level, 11 digits).
793    
794    checkpoint58l_post
795    o calc_gw:
796     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
797     - remove side-drag for now (need to fix it); update plume_on_slope results.
798     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
799    o commit code to make SST/SSS weights spatially variable
800      (based on either variable in-situ or variable initial T/S weights)
801    o pkg/ecco:
802      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
803        now based on horizontally varying weights wthetaLev, wsaltLev
804      * cost_averagesflags now returns year indices in addition to day, month
805      * sflux balance is performed on annual basis
806        (sflxumm, sfluxmm2, bal_sfluxmm)
807      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
808        including separate counting and multipliers
809    o pkg/rbcs
810      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
811    
812    checkpoint58k_post
813    o testreport:
814     - always build in dir. "build" (if not there, mkdir build instead of building
815       & running in input)
816     - run in dir run (if it exists), in build otherwise.
817     - call prepare_run (if input/prepare_run exists)
818     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
819    o pkg/exf modifications to interpolation and rotation routines for more
820       reasonable treatment of North Pole singularity: for tracers North Pole
821       value is set to northernmost zonal-mean value, for zonal velocity it is
822       set to zero, and for meridional velocity it is set to northernmost value.
823    o pkg/exf/exf_check_range.F
824     - add tile index to diagnostics and move stop statement to the very
825       end of the routine.
826    o pkg/diagnostics: (diagnostics_main_init.F)
827      define title of isomorphic variables according to the current config.
828    o pkg/thsice with pkg/seaice dynamics:
829    - fix domain of computation (interior only, required for exf) and do exchanges
830    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
831    o towards a standard way of dealing with multi-threading in MONITOR
832      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
833    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
834       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
835    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
836    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
837    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
838       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
839    o tracer advection:
840     - clean-up and simplify calc_common_factors.F
841     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
842       advection subroutine (but still not used within DST advection S/R)
843    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
844    
845    checkpoint58j_post
846    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
847      from file (collects calls previously in FORWARD_STEP)
848    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
849    o adjoint store dir. adjusted accordingly
850    o genmake2
851      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
852    
853    checkpoint58i_post
854    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
855      on wind stress (SEAICEstressFactor defaults to 1.)
856    o Total number of Timers is finite (<=40): comment out 2 non-essential one
857      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
858    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
859      on CS-grid: no longer loosing mass.
860    o exf & curvilinear-grid: no longer modify longitude xC & xG.
861    o pkg/ggl90: fix sloppy output and fix a bug
862    o pkg/seaice: added SEAICEuseEVPpickup parameter
863      - Set to false in order to start EVP solver with
864        non-EVP pickup files when using SEAICEuseEVP
865      - fix sign error in diffusion in seaice_calc_rhs
866    
867    checkpoint58h_post
868    * Modifications for bottom topography control
869      o replace hFacC by _hFacC at various places
870      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
871      o add non-self-adjoint cg2d_nsa
872      o update autodiff support routines
873      o re-initialise hfac after ctrl_depth_ini
874      o works for 5x5 box, doesnt work for global_ocean.90x40x15
875    * Adding verification for 5x5 box (4-layer) bottom topography control
876    
877    checkpoint58g_post
878    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
879       used for mean seasonal cycle, mean diurnal cycle); add an example
880       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
881    o pkg/ggl90:
882      - add parameter (minimum surface kinetic energy)
883      - fix bug (avoiding division by zero)
884    o couple pkg/thsice to pkg/seaice:
885      - modify advection in seaice to accomodate new scalar fields to be advected
886      - only muliDimAdection scheme work with seaice/thsice
887      - mapping of thsice-variables to seaice-variables, back and forth
888      - does not break the verification experiments, but does not give the
889        desired results either
890    o pkg/seaice
891      - make (default) second order advection a bit less confusing?
892    
893    checkpoint58f_post
894    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
895      to pkg/seaice):
896      - new routines thsice_map_exf and thsice_get_exf provide the interface
897      - add an additional formal parameter to thsice_solve4temp
898    o pkg/exf:
899      - add new fields wspeed, snowprecip (to be able to couple to thsice)
900      - correct Stefan-Boltzmann constant
901      - new parameter for longwave surface emittance
902      - separate some stuff from exf_bulkformulae into new routines  
903        exf_radiation, exf_wind
904      - add new parameters and constants: longwave emissivity for ocean, ice
905        and snow, evaporation parameters over ice
906      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
907        either wind from stress or stress from wind
908    o pkg/thSIce:
909    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
910    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
911       and THSICE_CALC_THICKN
912    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
913    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
914      to make debugging easier.
915    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
916    o pkg/bulk_force:
917      - clean-up comments and parameters ;
918      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
919    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
920      generate new output for test-experiment: aim.5l_cs.thSI
921    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
922      testreport accordingly
923    
924    checkpoint58e_post
925    o SEAICE_CGRID adjoint done
926    o R_STAR adjoint implemented.
927      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
928      * need to sort out init. of h0facc, etc.
929    o Make pkg/profile fully independent of ecco,cost, etc. stuff
930      to be able to use it in pure forward.
931    
932    checkpoint58d_post
933    o upgrade simple test-experiment to tutorial example:
934     step.1: duplicate the experiment and (step.2) will remove the old copy.
935      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
936      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
937      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
938      tutorial_global_oce_biogeo    <- copy of dic_example
939      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
940      tutorial_plume_on_slope       <- copy of plume_on_slope
941      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
942      tutorial_global_oce_optim     <- empty for now (David ?)
943      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
944     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
945    o correct a sign problem in cost_scat.F
946    o obcs and ptracers: fix boundary conditions for advections schemes
947      with larger stencil
948    o thsice adjoint: start
949    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
950      completeness
951    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
952      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
953    o ptracers adjoint:
954      * avoid extensive recomputatations
955      * fix missing re-init. of gptr (missed by TAF)
956    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
957      me to turn off the excessive output to STDOUT that this package produces
958    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
959      and add those terms in Vector-Invariant formulation.
960    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
961      if the control period (xx_hfluxperiod etc) is 0
962    o in profiles pkg, clean routines and fix details
963    o in ecco pkg, reading ssh data:
964      fix problem in case the model does not start at iter0=0
965    o fix mnc-pickup/restart for ptracers
966    o new package prifiles:
967      code to compute profile-based cost by Gael Forget
968      (modifs in ecco, ctrl, autodiff)
969    o Benign bug fix in initialization (spotted by M. Mazloff) of
970      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
971    
972    checkpoint58c_post
973    o adjoint: finish NLFS adjoint and provide reference output in
974      verification/global_ocean.90x40x15/results_ad_nlfs
975    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
976      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
977      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
978      with SEAICE_CGRID defined.
979    o move calendarDumps from "data" to "data.cal" and clean-up the code
980      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
981    o add useEXF & useCAL flags (for now, set in hard-coded way)
982    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
983      (were missing in NH mode, and wrong in quasihydrostatic mode).
984      waiting for Chris updated version of calc_gw to add those CALLs.
985    o fix bug in quasihydrostatic S/R ;
986      add a test for this option: global_ocean.90x40x15.qshyd
987    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
988      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
989    o add on/off flag useOffLine for package OFFLINE
990    o seaice:
991      - modify advection so that it works also on the C-grid
992      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
993        problem in multi-tile runs with C-grid
994      - add flags for clipping ice velocities and/or masking solver forcing
995      - fix drag (ocean on ice) formulation and a bug that caused noise in the
996        C-grid solver
997      - added a few comments to seaice_diffusion.F
998      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
999        are now exclusive)
1000      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1001        required re-ordering the code a little:
1002       + make DAIRN global variable (defined in SEAICE)
1003       + move computation of the viscosities eta and zeta into a new separate
1004         routine (because I need to recompute them in seaice_ocean_stress.F)
1005    
1006    checkpoint58b_post
1007    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1008      update output.txt of exp. aim.5l_cs.thSI
1009    o various mnc cleanups and improvements:
1010      + shrink lookup tables by factor of ~4
1011      + better error reporting when running out of lookup space
1012      + able to handle longer path/file names (up to 500 chars)
1013    o adjoint:
1014      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1015      - TBD: "hidden" mom_vecinv recomp. in dynamics
1016    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1017     (allow to differentiate between forcing components using new integer flags:
1018      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1019     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1020    o ecco
1021      - enable trend removal from SSH anomaly obs.
1022    o adjoint
1023      - a fix for PmEpR when #undef EXACT_CONSERV
1024      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1025      - try to fix "hidden" recomp. in forward_step for NLFS
1026        (NLFS seems broken sometimes after I checked it in)
1027    o seaice:
1028     - add c-grid version of the dynamic solver:
1029       + three new routines that are the c-grid substitute lsr, dynsolver
1030         and ostres
1031       + put a few fields that were local to dynsolver into global common
1032         blocks, so that I can move the computation of stresses etc into
1033         seaice_lsr (saves coding but may break the adjoint).
1034     - replace more hardwired parameters by runtime parameters
1035     - add ice masks that mask the rhs of the implicit solvers where there
1036       is no ice (commented out in seaice_dynsolver, because i am not sure
1037       if this works properly), eventually this should replace the clipping
1038       of ice velocities in seaice_dynsolver to +/-40cm/s.
1039    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1040      include it only where its needed
1041    o move balancing of fluxes before the call of external_forcing_surf
1042    o seaice:
1043      - correct units of turning angles (now they are really in degrees)
1044      - move computation of GWATX/Y out of main routine into dynsolver
1045      - initialize GWATX/Y in seaice_init
1046    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1047      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1048    o seaice: add runtime flags for turning angles (default to zero)
1049    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1050      and trend from exf forcing and ctrl control adjustments
1051    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1052      (since checkpoint57x_post)
1053    o change the default rotation period to 86164.s = the Earth rotation
1054    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1055      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1056    o seaice advection: add code for choosing between the default (2nd order
1057      central differences) and multiDim advection schemes provided by
1058      pkg/generic_advdiff
1059    o seaice:
1060      - removed all references to SEAICE_GRID.h fields from
1061        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1062        (cubed-sphere configuration will change a little)
1063      - grid computations in seaice_init are obsolete now.
1064      - cleaned up code a little so that is easier to read (hopefully).
1065      - added new (better?) discretizations of default advection and diffusion
1066        (turn on with SEAICEuseFluxForm)
1067      - replace 1 in 3d global fields by kSurface in growth.F
1068      
1069    checkpoint58a_post
1070    o seaice:
1071      - bug fix in advect.F
1072    o shelfice:
1073      - separate shelfice load anomaly from pload (breaks with time
1074        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1075        Its default is 0., but it may be computed more cleverly from (unknown)
1076        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1077        done offline. A good approximation of the pressure load anomaly is
1078        necessary to avoid large initial adjustment processes underneath
1079        deep-reaching shelfice.
1080      - small fix in ISOMIP shelfice_thermodynamics
1081      - add more sophisticated thermodynamics of Hellmer (1989), this is
1082        now the default
1083      - give a few constants more intuitive names
1084    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1085      if bulk formulae are used in long integration (especially EmPmR). Turn
1086      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1087      if balancePrintMean, the imbalance that is substracted is printed to
1088      STDOUT.
1089    o fix bug (typo) in obcs_apply_eta.F
1090    o add a new package shelfice which enables us to model the circulation
1091      underneath shelf-ice with draughts of hundreds of meters.
1092     - works
1093     - to do: + include improved thermodynamics
1094              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1095                instead of new field kTopC
1096              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1097                instead of new field R_shelfIce and new code in ini_depth.F
1098                and ini_mask_etc.F?
1099              + adjust vertical mixing schemes?
1100    o seaice pkg:
1101     - add a cpp-flag to include a simple formula for a salinity dependent
1102       freezing point of sea water at the surface
1103     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1104       meridional stresses are now different (and hopefully correct)
1105    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1106       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1107       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1108    o pkg/diagnostics: add options and parameters for regional-statistics
1109       diagnostics ; define regions by reading a region-mask from a file
1110       (might add other options later)
1111    o pkg/bulk_force:
1112     - add option and parameters to use AIM surface-flux formulae.
1113     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1114       others forcing fields (defined in PARM05, parameter file "data") are loaded
1115       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1116     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1117     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1118     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1119       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1120     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1121    
1122    checkpoint58
1123    o add "--embed-source" option to genmake2 which, when the supporting
1124      tools can be compiled (as determined by genmake2) will turn on the
1125      embed_files package which then embeds the entire MITgcm source code
1126      (*.[fFhc] + Makefile) used for the build within the executable
1127      - requested by CNH but off by default
1128      - adds a paltry <9MB to the mitgcmuv executable in most cases
1129      - only writes the output when useEMBEDSRC in eedata is true
1130    o clean up 3-dim. relaxation codes:
1131      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1132      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1133      * Thanks to Tom Haine for testing!
1134    
1135    checkpoint57z_post
1136    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1137      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1138    o fix the pickup behavior for obcs in combination with ptracers
1139    o fix a bug in ptracers_external_fields_load
1140    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1141      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1142    o transfered surface NH pressure to eta field (if exactConserv).
1143    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1144         and update lab_sea output.txt file.
1145    o completing 3-dim. relaxation code: additional term
1146         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1147      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1148      * At compile time, in "EXF_OPTIONS.h" set
1149          #define  ALLOW_CLIMTEMP_RELAXATION
1150          #define  ALLOW_CLIMSALT_RELAXATION
1151      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1152          tauThetaClimRelax3Dim = 15552000.0,
1153          tauSaltClimRelax3Dim  = 15552000.0,
1154      * 3 cases:
1155          1) Use a constant-in-time 3-dim. field
1156          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1157          3) Real-time relax. to time-evolving prescribed field
1158    o Adding Laplacian-type smoothness constraint on
1159      initial and boundary (forcing) controls (ic, bc)
1160      * enable at compile-time via
1161        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1162      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1163      * Absolute scale somewhat unclear so far
1164      * no area weighting was included since no other cost term does so far
1165    
1166    checkpoint57y_post
1167    First step for a NLFS adjoint
1168    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1169    o new init. routines for calc_r_star, calc_surf_dr
1170    o still need to deal with ini_masks_etc
1171    o testreport seemed happy
1172    checkpoint57y_pre
1173    
1174    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1175    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1176    o add new offset feature to offline pkg (plus minor cleanup)
1177    o cfc fixes for final year of integration
1178    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1179      be in GCHEM_OPTIONS).
1180    
1181    checkpoint57x_post
1182    o fix testreport Pb in multiple test experiment.
1183    o cleanup our namelist syntax in verification:
1184      - make it more F95 standards compliant (some work still needed)
1185      - allows the vast majority of our tests to work with gfortran
1186    o Non-Hydrostatic:
1187     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1188     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1189    o Allow to apply AB on T,S rather than on AB(gT,gS):
1190     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1191     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1192       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1193     - need a "clever" read_pickup to restart from the other AB formulation
1194    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1195    o remove some unused variables (reduces number of compiler warnings)
1196    o adjoint
1197      * Disable useVariableViscosity for adjoint for time being
1198        (there are a number of extensive recomputations)
1199      * Initialize certain variables needed for adjoint
1200    
1201    checkpoint57w_post
1202    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1203                 fix the singleCpuIO RS version of MDSWRITEFIELD
1204       and add a WARNING if using globalFiles=T with multi-processors.
1205    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1206      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1207    o tracer advection scheme:
1208      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1209       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1210       was not very convenient).
1211      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1212       (further tests needed for the implicit DST & Flux-Limiter schemes).
1213    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1214      and sRef for convenience, handy, when you want to initialize
1215      ptracers in a large domain with a constant non-zero value. Also,
1216      untangle ptracers_init.F a little.
1217    
1218    checkpoint57v_post
1219    o change dome exp. to use variable viscosity in side-drag terms.
1220    o remove all the files from the cfc_offline test since they are now
1221      incorporated into tutorial_cfc_offline which has been producing
1222      identical results for a few days of testing
1223    o add new parameter: sideDragFactor to enable half-slip-side BC
1224      and change side-drag S/R to use viscosity from mom_calc_visc
1225      (can switch back by setting sideDragFactor=0.); affects results at
1226      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1227       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1228    o vorticity & strain are now computed without masking, to account for
1229      no-slip-side BC in variable viscosity calculation ; mask is applied
1230      anyway later on, before computing advection/coriolis terms.
1231    o modify exp4 to test new obcs support for reading from external files
1232      and for passive tracers
1233    o fix behavior of ptracers_monitor when monitor output is written to a
1234      netcdf-file; still not independent of monitor.F (writes in the same
1235      file).
1236    o change default value of tRef (put a uniform, meaningful value for ocean
1237      & atmos) and initialize sRef (was missing, as Martin mentioned).
1238    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1239      to be proportional to enstrophy dissipation length.  Thus,
1240       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1241      This is now consistent with Smagorinsky and with the manual.
1242    
1243    checkpoint57u_post
1244    o OBCS and PTRACERS: add open boundary support for passive tracers
1245      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1246        OB-values from file; this is not different from the way theta and salinity
1247        are treated
1248      - however, Orlanski-radiation conditions are not supported, and the model
1249        will stop if you use pTracers and Orlanski at the same time.
1250      - beefed up the rountine obcs_external_fields_load: now only those open
1251        boundary values are overwritten with values from files for which there
1252        are really files, otherwise the OB-fields remain untouched. This makes
1253        it possible to use different OBs at different ends of the domain (as
1254        with EXF)
1255    o reduce number of exch calls in shap_filt (s2).
1256    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1257      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1258    
1259    checkpoint57t_post
1260    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1261    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1262      same truncation, independent of the face number: affects affects several
1263      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1264    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1265      note that biharmonic viscosity + no-slip was not tested in any experiment.
1266    o fix bug in non-linear free-surf side-drag ; generate new output for
1267      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1268    o make mnc honor the writeBinaryPrec flag for most kinds of output
1269    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1270    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1271      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1272    o add brackets in multi-terms sum to get same truncation, independent of
1273      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1274      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1275    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1276      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1277      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1278      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1279      Suggested values of viscosity parameters found in mom_calc_visc.
1280      Many new viscosity diagnostics available.
1281    
1282    checkpoint57s_post
1283    o Add clearing-house for viscosity calculations, mom_calc_visc and
1284      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1285      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1286      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1287      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1288      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1289      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1290      ViscAhStrain and viscAhTension are now retired.
1291    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1292    o In response to JMC's bug report, genmake2 now ignores any soft-links
1293      that it finds in the *current* directory when searching for files.
1294      Soft-links found in any other source directories will still work as
1295      they did before.
1296    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1297      a C routine to unlimit the stack size
1298    o mnc-ify pkg/aim snapshot vars
1299    o mnc-ify pkg/land as requested by Daniel
1300    o various changes to mnc including:
1301      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1302      - output can now be grouped so that all files within a group
1303          change the ITER portion of their names in lock-step together
1304      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1305          and works with both EXCH1 and EXCH2 (but needs more testing)
1306      - writing works for all verification test cases w/ g77 on Linux
1307    
1308    checkpoint57r_post
1309    o make MNC variable initialization happen earlier
1310    o add diagnostics for (almost) each term of the momentum Eq.
1311    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1312    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1313    o remove MINIMAL_TAVE_OUTPUT option ;
1314      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1315    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1316      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1317    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1318    o add time-dependent SST, SSS control
1319    o cost terms in ecco/ modularized (new cost_generic.F)
1320    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1321    o new infrastructure for seaice model vs. obs misfits in seaice/
1322      * driver from the_main_loop.F is seaice_cost_driver.F
1323      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1324      * gradient check in Exp. 6a of natl_box_adjoint/
1325    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1326      (see README file)
1327    
1328    checkpoint57q_post
1329    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1330    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1331      - bug was reported by Jean-Michel and Ian Fenty
1332    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1333      update exp. cpl_aim+ocn output.
1334    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1335      Needed for high-res. runs with large global files
1336      to be able to limit tapelev size
1337    o Changed some tests for adjoint:
1338      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1339      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1340      * global_ocean.90x40x15/ back to default 3-level checkpointing
1341    o Modifications to enable scripted COMMON to MODULE conversion
1342      * verification/OpenAD/code/ has necessary scripts and description;
1343      * converts, compiles and runs successfully;
1344    
1345    checkpoint57p_post
1346    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1347    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1348      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1349    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1350    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1351      (was already the case for dissipation with mom_vecinv,
1352       and also the case for grad.PhiHyd when staggered-timeStep)
1353      This will allow to put dissipation out-off the AB time-stepping.
1354     Unfortunately, affects truncation error. Update output of exp. that "fails"
1355      (cg2d matching number) and leave the others for later: front_relax(10),
1356      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1357      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1358    
1359    checkpoint57o_post
1360    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1361      (2) its ready to be documented during the 20050801 DocFest
1362    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1363      for ideal_2D_oce and lab_sea on linux_ia32_g77
1364    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1365      in global1x1_tot/code_seaice_adj to access indices 32, 33
1366      (worth another tag)
1367    
1368    checkpoint57n_post
1369    o adding precip control xx_precip 32
1370    o adding swflux control xx_swflux 33
1371    o Replacing 10 forcing penalty cost routines by 1 generic.
1372    o Implementing partitioning in time-mean and variable adjustment
1373      for atmos. state.
1374    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1375    o in natl_box_adjoint:
1376      * updated exp 1 to 10
1377        (but does not have time-mean vs. variable split results yet)
1378    o updated global1x1/*_seaice_adj/
1379      to incorporate latest changes
1380    o enable useSingleCpuIO for mdsio vector routines
1381      (applies in particular to tapelev I/O)
1382    o removed inefficient K-loop in all active_file*control*.F
1383    
1384    checkpoint57m_post
1385    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1386      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1387    o pkg/exch2: filling of face-corner halo regions is optional
1388      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1389    
1390    checkpoint57l_post
1391     tag before updating tutorials (pre-release-2)
1392    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1393       for output and interpolation of input fields onto model grid)
1394    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1395       Affects results of exp. rotating_tank ; update output.txt.
1396    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1397          and taking the square quantity and/or using a fraction-weight field.
1398    o fix aim_diagnostics_init.F mate numbers.
1399    o add mnc output capability to diagnostics/diagstat and update
1400      our cvsignore files for the ACSII output generated
1401    
1402    checkpoint57k_post
1403    o lab_sea now uses diagnostics package and provides a suite of
1404      new EXF diagnostics output.
1405    
1406    checkpoint57j_post
1407    o exf
1408      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1409        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1410        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1411      * extended diagnostics output
1412        - now includes all EXF variables
1413        - hs, hl moved to common block
1414        - separate S/R for diagnostics, called after ctrl vector is added
1415        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1416        - EXFqnet contains true Qnet (i.e. includes qsw)
1417      * updated verif. lab_sea, global_with_exf
1418      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1419        to ensure that diagnostics sees a true EXFqnet
1420    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1421    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1422      several times with different frequencies.
1423    o mnc-ify the thsice package as requested by Daniel Enderton
1424      - the monitor--MNC output needs work
1425      - many attributes need to be added (most are currently blank)
1426    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1427      - many attributes need to be added (most are currently blank)
1428    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1429    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1430    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1431      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1432         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1433    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1434     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1435    
1436    checkpoint57i_post
1437    o Diagnostics package was changed: diagnostic allocation is now deactivated
1438      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1439    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1440      add 1rst Order upwind vertical Shear.
1441    o add a quick fix for A/B checkpointing in OFFLINE mode
1442    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1443      end-run around the C/Fortran linking horror in eesup/src/timers.F
1444    o added pkg/runclock: allows user to terminate run based on wall clock
1445    o added non-hydrostatic scaling parameter: nh_am2
1446    o pkg/my82: futile attempt to make results compiler-independent by adding
1447      some "_d 0", etc. no effect.
1448    o for mnc output, fill the 'T' coordinate var with myTime and create a
1449      separate 'iter' variable for iteration count
1450    o pkg/diagnostics:
1451      add new capability: output of Global/Regional & per-level statistics ;
1452      tested against monitor output (including land & thSIce) on various exp.
1453    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1454    
1455    checkpoint57h_done
1456      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1457      data.diagnostics, data.gchem, data.ptracers) is done.
1458    
1459    o pkg/diagnostics: prepare for Global/Regional statistics.
1460      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1461    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1462      and rename it: DIFFERENT_MULTIPLE
1463    
1464    checkpoint57h_post
1465    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1466    o pkg/diagnostics: change output frequency, now in seconds (instead
1467      of Nb of iterations). This requires to change data.diagnostics.
1468    checkpoint57h_pre
1469    
1470    o in mnc, let the user create the output dir if both mnc_outdir_date
1471      and mnc_outdir_num are false
1472    o add fflags() to pkg/diagnostics which allows one to specify, on a
1473      per-file basis, the file precision [default behavior is unchanged]
1474    o added diagnostics to pkg/kpp, including computation of mixed layer
1475      depth based on a temperature/density criterion
1476    o updated verification/natl_box to test the new pkg/kpp diagnostics
1477    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1478    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1479    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1480      not mnc -- this mistake was found by JMC and is now corrected
1481    
1482    checkpoint57g_post
1483    o add Adams-Bashforth 3rd Order time stepping:
1484      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1485      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1486    checkpoint57g_pre
1487    
1488    o make lambda[Theta,Salt]ClimRelax spatially varying
1489      (default remains spatially uniform constant based on tau)
1490    o added new control variables
1491      * init. uVel, vVel, etanN
1492      * lambda[Theta,Salt]ClimRelax
1493    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1494      (suggested by G. Forget)
1495    
1496    checkpoint57f_post
1497    o add parameter "baseTime" = model base time = time at iteration zero
1498      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1499      account for baseTime shift
1500    o move Coriolis arrays from PARAMS.h to GRID.h
1501    checkpoint57f_pre
1502    
1503    o mnc-ifying the seaice package
1504    o introduced an alternative length scale calculation for use in the limiting
1505      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1506    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1507    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1508      as well as grad(vort3).  Made it compatible with both approximate form
1509      for the cubed sphere and full form of these gradients.  Added flag
1510      useFullLeith to select between approximate and full form.  
1511    o add "d0" in getcon.F to reduce differences between compilers/platforms
1512      update output.txt of exp. fizhi-gridalt-hs
1513    o change port_rand funtion to allow to set the seed.
1514    o fix obscure MNC bug involving conversion between reals and integers
1515      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1516        new version is now more standards-compliant
1517    o adjoint-related modifications
1518      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1519      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1520      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1521    
1522    checkpoint57e_post
1523    o Adding eddy stress controls a la Ferreira et al.
1524    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1525    
1526    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1527      update output.txt of exp. fizhi-gridalt-hs
1528    o add more "Z" dimensions and associated coordinate vars to MNC
1529    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1530    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1531      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1532      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1533      months and years.  Requires pkg/cal.
1534    o diagnostics: add pickup functionality
1535      - off by default for backwards compatibility
1536      - current version only uses MDSIO -- MNC will be added
1537    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1538    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1539    
1540    checkpoint57d_post
1541    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1542    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1543      output from the diagnostics package
1544    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1545    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1546      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1547    o add coordinate variables to the MNC output from the diagnostics package
1548    o change MNC-flags default value: true when useMNC=TRUE
1549    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1550      the ability (off by default) to read the grid information using MNC
1551    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1552    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1553    o do snap-shot diagnostics at the middle of the time-interval (instead of
1554      at the end).
1555    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1556      new test for AIM with thSIce + slab-ocean
1557    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1558    o move state variable diagnostics to the beginning of the time step ;
1559      (note: still needs some work specially for snap-shot diagnostics)
1560      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1561    
1562    checkpoint57c_post
1563    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1564    o generate new output.txt files on faulks with g77 & the new -ieee option
1565    checkpoint57c_pre
1566    
1567    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1568      update output.txt of exp. global_ocean.90x40x15
1569    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1570      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1571    o add saltFlux(+File) forcing capability with periodicExternalForcing
1572    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1573    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1574    o improvements for the MNC output from DIAGNOSTICS:
1575      - correct handling of the unlimitied dimension
1576      - all dims now have associated coordinate variables
1577      - variables located at U, V, and Corner ("Z") points are now written
1578        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1579        *all* data points are output
1580    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1581    o added pkg/seaice/seaice_monitor.F
1582    o mdsio_readfield.F can now read files visible only to master MPI process.
1583    o pkg/seaice: some test code for ice-modified ocean stress
1584    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1585      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1586      spurious negative numbers for precipitation and humidity.  Will cause
1587      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1588    o pkg/ctrl/
1589      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1590        May be enabled via doPackDiag
1591      *  introduce z-scaling of
1592         + gradient (doZscalePack) and
1593         + control (doZscaleUnpack)
1594    o pkg/mdsio/
1595      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1596      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1597    
1598    checkpoint57b_post
1599    o simplify options in diagnostics_fill arguments (remove weird combinations)
1600    o fix MNC coordinate variables so that they now contain per-face index
1601      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1602      general, EXCH2 grids are only aligned to a "local" coordinate system
1603    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1604    o Implement instantaneous output within pkg diagnostics:
1605      setting a negative frequency in data.diagnostics produces
1606     "snap-shot" output (as opposed to time-average if freq > 0)
1607    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1608      NOTE: change ptracer diagnostics name: use 2 characters to work with
1609            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1610    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1611      becomes the coordinate variable for the 'T' dimension
1612    o add CF-style coordinate variables to MNC
1613      - just a first cut:  numbers are meaningless on the cubesphere and
1614        missing along the T axis but otherwise it works!
1615    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1616    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1617    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1618      this is based directly on what the model compute, so that the content of
1619      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1620    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1621    o clean up build options files for SunOS, in particular
1622      - remove -traditional from xmakedepend
1623      - change -xarch=v9 to -xarch=native for f77
1624      - restore use of make (not gmake)
1625      - add CC=gcc if using g77
1626    o changes per discussion of AM, JMC, & EH3 today:
1627      - move redundant "grid" variables out of "state" -- in preparation of
1628        creating proper CF-style coordinate variables and in recognition
1629        that any/all grid variables can be easily copied (eg. w/NCO) from
1630        the grid files into any of the other NetCDF files
1631      - *always* output grid variables with MDSIO (this will eventually be
1632        changed)
1633      - output MNC grid file if useMNC is true
1634    o every instance of _END_MASTER() has been found and replaced with
1635      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1636      preprocessors
1637    o re-arrange diagnostics pkg initialisation:
1638     - allow each package to extend the available diagnostics list
1639     - add some checking and fix small problems (multi-threaded, ...)
1640     - new S/R diagnostics_fill (replace fill_diagnostics):
1641       look through the short list of active diag. (instead of the long list)
1642       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1643    
1644    checkpoint57a_post
1645    o this set of changes restores TAMC compatibility
1646      tested for global_ocean.90x40x15 adjoint on trough
1647      (what a pain)
1648    
1649    checkpoint57a_pre
1650    o some modifs in tools/build_options for sunos
1651    o call ctrl_pack for ctrl at end for optimcycle=0
1652    
1653    checkpoint57
1654    o add horizontal bi-harmonic viscosity for vertical velocity
1655      - new parameter viscA4W (defaults to viscA4)
1656      - affects only non-hydrostatic code
1657      - to be done: no-slip lateral boundary conditions
1658    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1659    o implement Implicit Vertical advection for pTracers
1660    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1661      (implemented also for implicit vertical diffusion & advection)
1662    o OBCS: extend application of tracer open boundary conditions
1663      to a strip beyond the boundary of width Olx/Oly
1664    o add call monitor to TAF set of required calls (flow directives)
1665      and include in natl_box_adjoint
1666    o untangle a few ifdefs related to cost, ctrl, autodiff
1667      untangel a few ALLOW_ECCO_OPTIMIZATION
1668    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1669      (theta2, salt2 in ecco_cost_weights)
1670    
1671    checkpoint56c_post
1672    o OBCS as control variables
1673      - update ctrl_ad_diff.list, obcs_ad_diff.list
1674      - remove balance of obcs controls from default
1675      - fix index bug nobcs in ctrl_init
1676      - fix dummy fields filen in ctrl_pack
1677      - add dummy weights for obcs
1678    o lsopt: comment out fort.94 output
1679    o optim:
1680      - remove unnecessary header files
1681      - adjusted namelists
1682      - add xerbla.F to Makefile
1683    o exf:
1684      - multiple modifications of exf_check_range
1685      - unit change in exf_init_runoff from [m/year] to [m/s]
1686    o mdsio:
1687      - i/o-vector change debugLevel from debLevA to debLevB
1688    
1689    checkpoint56b_post
1690    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1691      is called from DO_THE_MODEL_IO
1692      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1693      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1694      - clean up PTRACERS_WRITE_TIMEAVE a little
1695    o add another verification experiment that tests both the cfc-pkg and
1696      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1697      reactive tendencies treated inline with regular timestepping
1698    o testreport previously did a lousy job of comparing small numbers, so
1699      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1700      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1701      testreport.
1702    o ptracers_monitor: bug fix for MPI
1703    
1704    checkpoint56a_post
1705    o GCHEM: finish reorganizating the package
1706      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1707        (introduces another 3D-array for each passive tracer, but only if
1708        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1709        gchemTendency is not needed because the timestep is done separately)
1710      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1711      - GCHEM is now---more or less cleanly---separate from PTRACERS
1712      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1713        so clear to me how that should be done in a general way.
1714    o CFC: improve formatting of output in CFC_ATMOS
1715    o PTRACERS:
1716      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1717        that ALL experiments with ptracers enable can be checked. This makes
1718        GCHEM_MONITOR obsolete.
1719      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1720        monitorFreq
1721      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1722    o add PTRACERS (PTR0[1-5]) to testreport output
1723    o exf_check_range:
1724      * default changed to .TRUE.
1725      * will check values for niter0 if debLevA, every timestep if debLevB
1726      * STOP in exf_check_range if 'out of range'
1727      * range chosen generous to allow for potential extema
1728      TBD: a version with stricter range
1729           permitted range would be runtime parameters
1730    o GMredi:
1731      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1732      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1733      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1734    o GCHEM:
1735      - move call to GCHEM_FORCING_SEP, so that it is now called before
1736        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1737      - introduced a useGCHEM runtime flag and applied it everywhere.
1738      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1739        this flag is now only visible within GCHEM-pkg routines.
1740      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1741        be replaced by a 3D array that is computed before thermodynamics; for
1742        this, the tracer ID iTracer had to be included into the parameter list
1743        of ptracers_forcing
1744      - set up forward_step to call gchem_forcing, that will replace
1745        gchem_forcing_int in ptracers_forcing
1746      - cleaning up
1747    o small cleaning of exch2: remove files that are also in eesupp/src
1748    
1749    checkpoint56
1750    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1751    o mnc: cleanup "full" files--fixes out-of-memory problem
1752    o ECCO-GODAE
1753      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1754      * fully merged and updated from SIO code
1755        windstress sign change affects
1756        - exf_inscal_[u/v]stress
1757        - sign of xx_tau[u/v] adjustments
1758        - signs in cost_scat
1759      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1760      * natl_box_adjoint updated and compressed
1761      * 2-level checkpoint switch added
1762        (tested in EXP. 1 of natl_box_adjoint)
1763      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1764    o SVD
1765      * first complete, non-hacked version for SVD calculations
1766      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1767        performed via direct access files admtlm_vector.it????
1768        (via ctrl_[un]pack)
1769      * optimcycle is used for ARPACK iteration counter
1770        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1771      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1772        and add linear transforms where necessary
1773      * controls are initial/final SST, SSS (can be extended; need to check
1774        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1775    o mdsio: filename info to both stderr, stdout
1776    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1777      from sign change
1778    
1779    checkpoint55j_post
1780    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1781      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1782    o add consistent build directories and .cvsignore files to verification
1783    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1784    o make all subroutines 30 or less characters in length for certain older
1785      compilers to work (a thorough search only turns up two routines in
1786      pkg/ptracers)
1787    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1788      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1789    
1790    checkpoint55i_post
1791    o change arrays for total vertical diffusivity (2.D if explicit,
1792      3.D if implicit) ; each ptracer uses its own background value.
1793    o added mnc/NetCDF output capability to ocn_compon_interf
1794      - added bits to verification/cpl_aim+ocn so that it can run on
1795        ITRDA and other clusters without the mpirun "-wd" option
1796    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1797      configuration
1798    o give MNC the ability to create additional files rather than
1799      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1800      - the default is just less than 2GB which is a practical limit
1801        on many systems
1802    o Compute the non-local term using either KPP vertical diffusivity (=default)
1803       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1804    
1805    checkpoint55h_post
1806    o add verification test "vermix"
1807    o remove all the *_ioinc flags and replace with the single global
1808      outputTypesInclusive flag
1809    o allow to set a vertical profile of vertical diffusivity for T & S
1810    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1811    o useMNC moved from data.mnc to data.pkg
1812    
1813    checkpoint55g_post
1814    o Renaming carbon AD experiments to comply with testreport conventions
1815    o Updating adjoint of Held-Suarez hs94.1x64x5
1816    o Fixing directives for non-ECCO forward_step, after ECCO directives
1817      have been fixed to avoid recomp. of do_oceanic_phys
1818      Works well for global_ocean.90x40x15,
1819      but recomp. issue remains for carbon
1820    o Updating adjoint output for natl_box_adjoint after
1821      pkg/ecco has been modified (see taga c55d_post)
1822    
1823    checkpoint55f_post
1824    o rename to timeave_init_fixed
1825    
1826    checkpoint55e_post
1827    o some delicate re-shuffle of store directives to avoid one
1828      extra call of do_oceanic_physics
1829      affects ecco_the_main_loop.F, do_oceanic_physics.F
1830      checkpoint_lev1_directives.h
1831    o NB: this may break global_ocean adjoint temporarily,
1832      but it is clear how to fix it. Will do later, need this now.
1833    
1834    checkpoint55d_post
1835    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1836    o ecco_cost_weights is modified to 1x1 runs
1837    o modifs to allow observations to be read in as
1838      single file or yearly files
1839    o enable to read exf forcing fields as either
1840      single file or yearly files (flag useExfYearlyFields)
1841    checkpoint55d_pre
1842    
1843    o switch between 2-level and 3-level checkpointing
1844    o add ability of MNC to write local and "partial" (eg. 2D slices where
1845      the full 3D field is never actually stored) arrays to NetCDF files
1846      with the correct (that is, the complete multi-dimensional) set of
1847      array indicies
1848      - used in mom_vecinv() to write the diagFreq output
1849      - tested (demonstrated) in verification/aim.5l_cs
1850    o further mnc-ification
1851      - add verification/lab_sea to the list with mnc setups
1852      - fix undefined mnc v-names in cd_code
1853      - add kpp to mnc output (both snapshot and timeave)
1854    o non-hydrostatic code
1855      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1856        in calc_gw.F
1857      - defaults to viscAh
1858      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1859        friction or Leith) in non-hydrostatic mode, as long as there is
1860        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1861    o pkg/cost
1862      extend simple cost functions to treat time mean quantities
1863      (T,U,V) via cost_accumulate_state from cost_tile
1864    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1865        be 2 times larger than the minimum size the advection scheme requires.
1866        now get a perfect conservation of salt in advect_cs test-exp (updated)
1867    o GGL90 (Gaspar's TKE mixed layer)
1868      - add horizontal diffusion of TKE, requires exchanges in
1869        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1870        default. In OPA there is no horizontal diffusion of TKE but the
1871        mixing coefficients are computed from a horizontal average of TKE of
1872        6 points or so. I think that diffusion has a little more physical
1873        justification.
1874      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1875        was in vain)
1876      - mask tke-variable in ggl90_init
1877    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1878    o fix biharmonic diffusion on CS-grid.
1879    o more obcs stuff
1880      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1881        for reading boundary values. This routine is called from
1882        obcs_prescribe_read
1883      - updated obcs_check
1884      - changed sponge layer relaxation parameter units for days to seconds
1885      - turned off sponge layer by default
1886      - changed argument list of OBCS_CALC to myTime+deltaTclock
1887      - fixed about 35 bugs in obcs_external_fields_load
1888    
1889    checkpoint55c_post
1890    o obcs stuff
1891      - new runtime flags useOBCSprescribe, useOBCSbalance
1892      - re-arranged obcs_calc
1893      - moved exf_getobcs to obcs_prescibe_read
1894        obcs_prescibe_read is called after ORLANSKI stuff
1895        and independent of it (executable can contain all).
1896      - updated obcs_check
1897      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1898        These may be necessary only if tangential velocities are
1899        prescribed at OB, not sure, needs testing.
1900    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1901      which simplifies the calls and passes the ifc check-bounds test
1902    
1903    checkpoint55b_post
1904    o add a 2D scalar, Z location, exchange_2 routine.
1905    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1906      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1907      affects advect_cs results (for the wrong reason): update output.txt
1908    o use a more standard discretization for biharmonic viscosity ;
1909     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1910      affects results of dome set-up: update output.txt
1911    o fix gad_advection.F (CubedSphere part), back to version 1.23
1912    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1913    
1914    checkpoint55a_post
1915    o merged code to
1916      * prescribe/read time-dependent open boundaries
1917        (works in conjunction with exf, cal)
1918      * sponge layer code for open boundaries
1919      * each boundary N/S/E/W now has its own CPP option
1920        (healthy for the adjoint)
1921    
1922    checkpoint55
1923    o up-to-date adjoint of previous breaks
1924      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1925      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1926      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1927      - carbon: * remove tr1-related adjoint verification
1928                * add ptracer as control variable
1929    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1930      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1931    
1932    checkpoint54f_post
1933    o in verification/carbin/ remove experiment related to
1934      ALLOW_PASSIVE_TRACER (array tr1 etc)
1935      code_ad/ input_ad/ results_ad
1936    
1937    o add two new packages
1938      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1939        + subject to optimization (memory)
1940      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1941        + subject to reordering (many GOTOs in the original code)
1942        + so far opps is called for every (i,j) point, and then operates in
1943          the vertical; one may want to reorder the scheme in order operate in
1944          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1945          fields)
1946    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1947      - all verification tests compile and run with linux_ia32_g77
1948      - defaults are compatible with current input files--nothing
1949        should change if you were not previously using MNC
1950      - MNC output has been added in numerous places (eg. timeave)
1951        but there are still a few writes not yet do-able with MNC
1952        (this is in progress)
1953      - flags now allow for either/or/both use of MDSIO and MNC and
1954        documentation will soon follow
1955      - numerous small formatting cleanups for ProTeX
1956    o add version info (via BUILD_INFO.h) to MNC and stdout
1957    
1958    checkpoint54e_post
1959    o add two new packages
1960      - pp81 (Packanowski and Philander, 1981), Richardson number and
1961        stratification dependent mixing
1962      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1963      - these scheme operate in a similar manner as KPP (without ghat, of
1964        course), however there is only one diffusivity that is used for both
1965        temperature and salinity (and passive tracers)ç
1966    o add offline package
1967    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1968      provided by Stephanie Dutkiewicz
1969    o genmake2: add ability to search for C compilers and cleanup test output
1970      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1971    
1972    checkpoint54d_post
1973    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1974    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1975      leading to additional shift by 5 days each year of integration
1976       (i.e. leading to considerable offset over the years)
1977    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1978    o start with no AB and no initial filtering (staggerTimeStep):
1979      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1980    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1981      (external loading & cpl import/export stay in forward_step.F)
1982    o update coupling interface to work with new staggerTimeStep
1983    o change MDSIO ptracers_pickup.
1984    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1985    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1986    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1987    
1988    checkpoint54c_post
1989    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1990      this affects (truncation error) output.txt of test-exp:
1991       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1992    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1993    o change Qnet to always be the net heat flux, (+upward).
1994      affects (truncation error) output of natl_box exp.: updated
1995    o define the max number of passive tracers in PTRACERS_SIZE.h
1996    o start to test mnc routinely in exp0
1997    o add sea-ice loading (sIceLoad) as a new forcing field.
1998    
1999    checkpoint54b_post
2000    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2001       impressive on Altix and Opteron systems)
2002    o diagnostics can now write NetCDF files through the mnc package
2003    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2004    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2005    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2006      affects (truncation error) output of lab_sea & natl_box exp.: updated
2007    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2008    
2009    checkpoint54a_post
2010    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2011    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2012    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2013    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2014      + internal_wave (shift in writing cg2d_ini_res)
2015    checkpoint54a_pre
2016    
2017    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2018      - modified verification/lab_sea and natl_box_adjoint accordingly
2019    
2020    checkpoint54
2021    checkpoint53g_post
2022    o prepare splitting of thermodynamics: store convect.counter in common block
2023    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2024      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2025    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2026    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2027    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2028    o restore adjointability
2029    
2030    checkpoint53f_post
2031    o modifications that affect AIM experiment results (update output.txt):
2032      - no advection of S at top interface Nr (pkg/generic_advdiff)
2033      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2034    o AIM pkg:
2035      - include stability function into surf.Flux derivative relative to Tsurf
2036      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2037    
2038    checkpoint53e_post
2039    o merged cylindrical coord configuration
2040    o added rotating_tank experiment
2041    checkpoint53e_pre
2042    
2043    checkpoint53d_post
2044    o faulks upgraded: re-generate output.txt that have changed:
2045       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2046    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2047    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2048    o added Sadourny discretization of Coriolis
2049      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2050      - re-enabled use of omega3 (useAbsVorticity)
2051    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2052      vector-invariant equations
2053      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2054    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2055      hopefully without new bugs
2056      - still to do: biharmonic friction for non-hydrostatic w
2057    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2058    o regenerated output for global_ocean_ebm (using -ieee)
2059    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2060      of mom_common/
2061      - simple re-arrangement of instructions within computing loop
2062    checkpoint53d_pre
2063    
2064    checkpoint53c_post
2065    o new version of coupler for AIM+thSIce and Ocean models
2066     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2067     - land: change Evaporation of snow
2068     - aim with thSIce: fix bug in snow-precip.
2069    o changes to calc_gw.F
2070     - bug fix for w^2 term near the bottom boundary
2071     - (hopefully) improve the lateral slip boundary condtions for use with
2072        partial/looped cells
2073      - because the bug fix changes two verification experiments anyway (exp5
2074        and plume on slope), change the lateral boundary condition from half slip
2075        to the value of no_slip_sides
2076    o ebm package wasnt quite up to the parallel task. Fixed that.
2077    o Adjoint of EBM package + verification
2078      * TLM OK
2079      * ADM not sufficient accuracy yet (needs further testing)
2080    
2081    checkpoint53b_post
2082    o Commiting new energy balance model to repository
2083      * package is pkg/ebm
2084      * verif. is verification/global_ocean_ebm
2085      * references are in ebm_driver.F
2086    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2087    C        Global thermohaline circulation. Part I:
2088    C        Sensitivity to atmospheric moisture transport.
2089    C        J. Climate 12(1), 71-82
2090    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2091    C        Global thermohaline circulation. Part II:
2092    C        Sensitivity with interactive transport.
2093    C        J. Climate 12(1), 83-91
2094    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2095    C        Destabilization of the thermohaline circulation
2096    C        by atmospheric eddy transports.
2097    C        J. Climate 7(12), 1870-1882
2098    o Will need long integration testing.
2099    checkpoint53b_pre
2100    
2101    o created pkg/mom_common in preparation for variable viscosity code
2102    o renamed and split ini_mnc_io
2103    o pkg/land: only liquid water can diffuse or run-off
2104    o AIM using land: soil wetness availability account for snow
2105    o added printMapIncludesZeros to EEPARMS namelist
2106    
2107    checkpoint53a_post
2108    o restore TAMC compatiility for exf_constants.h
2109      (no usage of _d in .h)
2110    o Additional storing in KPP in an attempt to fix
2111      TAMC problem with adjoint of KPP code.
2112      (no success...)
2113      Identical code works fine with TAF.
2114    o Fixed verification/natl_box_adjoint experiments.
2115      Initial conditions for Experiments 4 and 5 are now
2116      set to "SEAICE_initialHEFF=0", which is more reasonable,
2117      and hence gives results closer to that of Experiment 2.
2118      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2119    
2120    checkpoint53
2121    o stable checkpoint with up to date adjoint
2122      TLM tests only run for 1st grdchk at the moment. Its unclear if
2123      this is a code problem or a problem with resetting code for g_
2124      variables that is being autogenerated wrong.
2125      Otherwise:
2126       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2127       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2128         are both still in chaos following their security messes.
2129    
2130    checkpoint52n_post
2131    o various build (mostly genmake2) changes including:
2132      - ability to build/run more easily within Cygwin and MacOS X
2133      - more complicated Makefiles with a stronger dependence on Gnu Make
2134    o pkg/seaice modifications
2135      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2136        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2137        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2138      - changed proxy for geostrophic velocity and updated
2139        verification/lab_sea/results/* accordingly
2140      - removed ADI dynamic solver from pkg/seaice
2141      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2142        they caused a segmentation fault under certain circumstances
2143      - removed unused field WATR
2144    o bug fix in exf-package:
2145      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2146         now reflect that.
2147    o small fixes in the cal-package:
2148      - set reference date to first of January for the 'model'-calendar
2149      - failing of cal_CheckDate in cal_FullDate now actually results in a
2150        warning
2151    o small modifications in exf-package to increase flexibility:
2152      - change climtempfreeze from a constant to a runtime parameter that
2153        is specified in data.exf_clim (default = -1.9)
2154      - introduce runtime parameter windstressmax (default = 2.0) that is
2155        specified in data.exf
2156    o fix in pkg/thsice:
2157      - update Evap (Tsf changes) to be consistent with Latent heat flux
2158      - maintain snow precipitation unchanged (even if Tsf >=0).
2159     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2160    
2161    checkpoint52m_post
2162    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2163      this does not change any of the results, because myIter=0 in swfrac always
2164      lead to jwtype=2 (the default anyway), but the call makes little sense
2165      as a default
2166    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2167    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2168      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2169    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2170    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2171    o extending useSingleCpuIO option to work with new exch2 I/O format
2172      - old-style, missing-tile I/O is still accessible by defining CPP
2173        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2174    o monitor package can write to NetCDF files and/or STDOUT
2175    o fix re-definition bug in MNC_GRID_INIT_ALL()
2176    o doc/api_reference added
2177      - a framework for building an API Reference Manual using all
2178        the "protex" comments embedded in the code
2179      - see pkg/generic_advdiff, pkg/mnc for examples
2180    o MNC:
2181      - make myThid the last argument for all subroutines
2182      - new default for the grid files: NO halos
2183      - add useMNC and other run-time flags
2184      - separate per-file-group handling of the unlimited dimension
2185      - early initialization of MNC w/ flags read at the eeboot stage
2186        and lookup tables set in initialize_fixed
2187      - write all MNC output to a freshly-created directory
2188    o thermodynamics sea-ice (thsice) is now tested with testreport.
2189    o test exp. advect_cs: use the standard cs32 grid ; update output.
2190    o Added functionality to grdchk:
2191      pick global i,j,k position (or nearest wet) where to perform check.
2192    
2193    checkpoint52l_post
2194    o new land formulation:
2195      a) use ground enthalpy as prognostic variable to ensure exact
2196         energy conservation.
2197      b) account for water temperature and for latent heat of freezing
2198         in all processes (rain, run-off, ground storage)
2199      c) compute surface and ground temperature implicitly.
2200    o aim_v23 modification for new land model:
2201      a) Treat separately land / ocean / sea-ice surface fluxes
2202         to allow implicit computation of land & sea-ice surface temp.
2203      b) add snow precipitation.
2204    checkpoint52l_pre
2205    
2206    o fix problem (when 1 tile is empty) in min/max monitor.
2207    o fix bug in timeAve (u,vZetatave in common block)
2208    o no restoring terms under ice for pkg/seaice
2209    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2210    o bug fix for pkg/seaice pickups
2211    o change MNC call locations and add coordinate attributes
2212    o mask vorticity at the corner ; affects global_ocean.cs output
2213    o fix ini_curvilinear_grid ; test CS experiments with mpi
2214    o aim.5l_cs: modify sea-ice fraction input file ; update output
2215    o exf: Adding simple range check routine for exf fields after read
2216    
2217    checkpoint52k_post
2218    o removed top-level directory "diags"
2219      - we migrated these functions to pkg/timeave a long time ago
2220    o fixed bug introduced in pkg/monitor
2221    o accuracy ctrlprec = 32 insuffient for gradient checks using
2222      averaged fields (I/O via cost_averages)
2223      -> use ctrl.h in active_file*.F to control I/O precision.
2224    o paramter list of CALL ADTHE_MAIN_LOOP
2225    o added initial do_the_model_io to ecco
2226    o set all ...Freq to zero after cost_final
2227      taveFreq, dumpFreq, pChkptFreq
2228    o MAIN and ECCO differentiability restored
2229    
2230    checkpoint52j_post
2231    o fix nchklev in tamc.h for global_ocean...
2232    o Bringing flow and store directives up-to-date
2233    o Really weird thing!
2234      call do_the_model_io from the_main_loop with parameters
2235      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2236      TAF places a faulty re-call of initialise_varia
2237      after cost_final call which should not be there!
2238    checkpoint52j_pre
2239    
2240    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2241      error messages
2242    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2243    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2244      debug output
2245    o modfied mdsio_writefield.F to handle non-global files under exch2
2246    o update AIM Cubed-Sphere exp (aim.5l_cs):
2247      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2248    o update AIM Equatorial Channel exp:
2249      use standard aim_v23 pkg and change the SST fields to be more realistic.
2250    o globalFile now works with exch2
2251    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2252      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2253    o limit timeave output for hi-res integrations
2254    
2255    checkpoint52i_post
2256    o removed CPP_EEOPTIONS.h from verification/*/code
2257    o updated the tiling for global_ocean_pressure
2258    checkpoint52i_pre
2259    
2260    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2261      the old pkg/aim).
2262    
2263    checkpoint52h_pre
2264    o shortened offending lines in exch2_send_rx?.template
2265    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2266    o genmake2: add build & execute test for NetCDF code
2267    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2268      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2269    o added useSingleCPUIO flag to monitor.F and mon_out.F
2270    o added temporary hack for sea-ice dynamics on the cube:
2271      metric terms are ignored and it is assumed that
2272      there is no sea-ice on cube faces 1, 2, 4, and 5.
2273    
2274    checkpoint52f_post
2275    o added exch2 cube routines to pkg/exch2
2276    o modified hs94.cs-32x32x5 to use it
2277    o added new grid files to hs94.cs-32x32x5
2278    checkpoint52f_pre
2279    
2280    checkpoint52e_post
2281    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2282      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2283    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2284      to work with implicit vertical advection and AB ;
2285    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2286    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2287     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2288    checkpoint52e_pre
2289    
2290    o fix bug in impldiff when Nr=1 or Nr=2.
2291    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2292    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2293    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2294      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2295    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2296    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2297    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2298    
2299    checkpoint52d_post
2300    o re-tiled many expts to allow comparison in multi-processor mode
2301      - updated output accordingly
2302      - changed hs94.128x64x5 to use intial T from file rather than use the
2303        random number generator
2304    o add infrastructure in model routines for fizhi and gridalt packages
2305  o change global_ocean.cs32x15 because of Pb with GM on CS-grid.  o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2306  o changes to permit hi-res, cubed-sphere, configuration  o changes to permit hi-res, cubed-sphere, configuration
2307    - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F    - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
# Line 17  o changes to permit hi-res, cubed-sphere Line 2316  o changes to permit hi-res, cubed-sphere
2316  o packages pickup: $PKG_write_pickup called from packages_write_pickup ;  o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2317     but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code     but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2318     to conform to the common rule.     to conform to the common rule.
2319    o check-in the first version of the coupler + interfaces for multi-components
2320       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2321       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2322       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2323       - ocean and atmos. share the same horizontal grid (no interpolation).
2324       - exchanges between component and coupler is done in forward_step
2325    o new verification experiment, cpl_aim+ocn:
2326       coupled ocean - AIM atmosphere on cs32 grid.
2327    
2328  checkpoint52d_pre  checkpoint52d_pre
2329  o surface flux time-av diagnostic modified for NLFS & RealFreshWater  o surface flux time-av diagnostic modified for NLFS & RealFreshWater

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