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revision 1.121 by heimbach, Tue Jan 21 19:44:45 2003 UTC revision 1.925 by jmc, Mon Dec 17 22:06:48 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/ptracers: new version of ptracers pickup:
8      read meta file and write only fields which are needed to restart.
9      ( same logic as main pickup file ; also using pickupStrictlyMatch )
10    o pkg/seaice:
11      - add timescale for melting due to warm mixed layer as a means of
12        setting SEAICE_availHeatFrac more conveniently
13      - add a CPP-flag/runtime parameter check for flooding algorithm
14      - reformulated availHeat in seaice_growth.F to be independent of AREA
15    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
16      unit changes
17    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
18    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
19      SX vector computer.
20    o pkg/seaice:
21      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
22        seaice forcing fields can now be read only through pkg/exf
23      - removed some unused halos
24    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
25    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
26      or U/VICE from U/VWIND before computing U/VSTRESS
27    
28    checkpoint59k
29    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
30      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
31    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
32      all experiments pass when compile with un-initialised var. checking option.
33    o added pkg/salt_plume
34    o script to test restart (for now, in MITgcm_contrib/jmc_script)
35    o pkg/seaice: new read/write pickup version.
36      read meta file and write only fields which are needed to restart.
37      ( same logic as main pickup file ; also using pickupStrictlyMatch )
38    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
39    o lab_sea.hb87: modify the domain & update output.hb87.txt :
40      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
41      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
42      process. Fixed here by closing the domain at the Northern boundary.
43    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
44    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
45      a set of consecutive levels in/from a 3-D array.
46    o pkg/ptracers:
47      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
48      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
49    
50    checkpoint59j
51    o in pkgs: dic, obcs, offline, rbcs:
52      standard way to compute coeff. for time interpolation between 2 time reccords
53      which retains full precision (& make results less dependent on compiler).
54      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
55    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
56      packages instead of reading ice cover and wind speed separately
57    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
58     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
59      to allow to compile customized code before the update)
60    o cleaning-up:
61      - fix CPP instruction syntax in pkg/obcs
62      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
63        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
64      - fix some threads issue in IO parts.
65    o pkg/dic:
66      - add tons of "_d 0" (--> much better testreports !)
67       and then update outputs of tutorial_global_oce_biogeo
68    o pkg/mom_fluxform:
69      add a special version of momentum advection intended to conserve momentum
70      next to a bathymetry step or a coastline edge. (default = off = #undef)
71    o new read/write pickup version:
72      - for now, only implemented for main (mdsio) pickup file.
73      - write out only what is needed to restart; merge pickup_nh , pickup_ph
74        and main pickup together.
75      - read meta file; read only what is needed to restart; stop if a field
76        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
77        if it make sense (even if the restart is not perfect).
78      - if no meta file, assume that pickup to read corresponds exactly to
79        a pickup that would currently be written.
80      - read pickup written in the old format (until checkpoint59i) if it
81        recognizes an old meta file (no field-list).
82      - add a meta file in exp. which starts from a pickup: 2 cases:
83        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
84         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
85        b) a meta file describing the content of the associated pickup file
86         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
87    o pkg/mdsio & pkg/rw:
88      - new routine to read a meta file ; new set of routine to read
89        Multiple-fields file (with meta file).
90    o added open boundary conditions capability for seaice
91        HSNOW, HSALT, UICE, and VICE
92    
93    checkpoint59i
94    o adjoint:
95      * fix multiDimAdvection adjoint
96        (partial recomputation problem by TAF for fVerT(:,:,kDown)
97        and comlev1 size definition (maxpass vs. max. number of tracers)
98      * verification/global_ocean.90x45x15 adjoint now tests
99        NLFS and multiDimAdvection using DST3 (=30)
100      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
101    o pkg/kpp: add "_d 0" to real constant (if missing);
102      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
103      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
104    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
105      for internal parameters related to restart process (formerly from PARAMS.h)
106      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
107    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
108      as argument. (only atm2d & obcs write_pickup have not yet been updated)
109    o pkg/monitor:
110      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
111      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
112      - account for deep Atmosphere factor and density factor (anelastic)
113    o added open boundary conditions capability for seaice HEFF and AREA
114    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
115      thermodynamics
116      - requires a little reorganization, which affects the testreport results
117        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
118        so that now the conservative form is tested
119      - add a few comments
120    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
121    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
122    o add new diagnostics to seaice: advective, diffusive fluxes (only for
123      multidim-advection, for scheme 2 they are not filled) and transports,
124      thermodynamic growth rates
125    o change units of EmPmR (inside the code, + within coupling interface)
126      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
127      Affects results @ truncation level (cg2d match) and update output of
128       experiments: lab_sea(6), global_ocean.90x40x15(10),
129      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
130      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
131      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
132      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
133    
134    checkpoint59h
135    o pkg/exf:
136      - improve vectorization by moving if-statement out of loops in
137        exf_mapfields, exf_radiation
138      - exf_bulkformulae.F: introduce 2D fields and vectorize code
139    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
140    o testreport:
141      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
142        monitor & update offline_exf_seaice exp. output.
143      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
144    o pkg/seaice:
145      - bug fix in the evp solver: boundary conditions were affected be
146        masking of zMax/zMin (changes results)
147      - minor bug fix in boundary conditions in seaice_calc_strainrates
148        (changes results for no_slip)
149      - seaice_lsr.F: make interpolation of eta dependent on boundaries
150      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
151      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
152        stress formulation and no-slip boundary conditions
153    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
154      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
155    o pkg/seaice: a first HSALT time stepping equation has been checked in
156    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
157      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
158      without requiring DO-IF statements
159    o pkg/thsice:
160      use continuous power-law function for partition of energy between lateral
161      melting/freezing and thinning/thickening ; old code using step function
162      still available with #undef THSICE_FRACEN_POWERLAW
163      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
164    o testreport: change AD testing : check against results/output_adm.txt
165      using same scripts as for forward test.
166    
167    checkpoint59g
168    o adjoint testing: in preparation for changing testreport:
169      - output format: cost and grad written on separated lines
170      - ad output results in directory "results" (instead of "results_ad")
171    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
172    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
173    o pkg/ecco: allow user defined cost function contributions
174    o testreport:
175      Allow to choose (per experiment) the list of tested output variables
176       and the main variable (used to issue a pass/FAIL ) ;
177      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
178      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
179      Also modify printing of summary:
180       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
181       b) echo the list of tested variables in the individual summary.txt of
182          each experiment.
183    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
184      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
185      (but still depend on the tile decompostion of the domain).
186    o pkg/seaice: change a discretization detail to make the B-grid code
187      "more symmetric". This change is likely to remove all "ridges/leads" that
188      where quasi-aligned with the grid in B-grid solutions. It may also be
189      the solution to the stress coupling issues with the B-grid.
190    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
191      remove .cvsignore from input dir. (since testreport no longer run here).
192    o pkg/thsice:
193     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
194     - fix reshaping of sea-ice just after advection:
195       melt all the ice only if ice-volume is too small.
196     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
197       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
198     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
199    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
200      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
201    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
202      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
203      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
204      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
205      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
206      -> update output.txt
207    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
208     this affects truncation error: -> update output.txt of exp:
209      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
210      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
211    
212    checkpoint59f
213    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
214    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
215      a bounded range (in forward mode)
216    o pkg/ecco, ctrl, autodiff and mom_common:
217     internal parameter controls, completements of implementations
218    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
219    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
220      (not seem any difference in testing results).
221    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
222       at face corners.
223    o pkg/generic_advdiff:
224     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
225      loop range indices for computing vertical advection tendency
226      and do the calculation in the interior only (no overlap) ;
227      for now, only implemented for SOM advection (to save CPU time).
228     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
229    o exch2 adjoint
230      First set of changes:
231      - add exch2 hand-written adjoint templates
232      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
233        This will require cleanup in pkg/autodiff/*.F
234        (changed routines currently kept separate in verif. code/)
235      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
236        that used to hide exch2 or cubed-sphere specific code
237        (commented via 'cph-exch2')
238    o pkg/seaice
239      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
240    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
241       output of global_ocean.cs32x15.thsice .
242    
243    checkpoint59e
244    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
245      for B-grid vector (not yet tested) and C-grid vector (<- only used
246      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
247    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
248      (#ifdef ALLOW_SALT_PLUME)
249    o gather_2d/scatter_2d: removed halo regions
250    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
251      scheme and the corresponding test case (under front_relax dir). For now,
252      only available with Skew-flux form and not yet tested in realistic set-up.
253      adjoint: store directives updated, but gradient checks deteriorated,
254      so maybe GM/Redi adjoint is now broken.
255    o seaice adjoint
256      * add AREA, HEFF, HSNOW as control variable
257        (should not change lab_sea results)
258      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
259    o pkg/seaice:
260      * added computation of saltFlux in seaice_growth;
261        For time being, sea ice salinity is assumed constant
262        contribution of snow flooding to freshening of sea ice is neglected.
263        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
264        defaults to 0.0 in order to maintain backward compatibility.
265        Typical values for SEAICE_salinity are 4 to 10 g/kg.
266      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
267      * added SEAICE_availHeatFrac, which specifies fraction of surface level
268        heat content used to melt or grow ice
269      * commented out cap of HICE: it helps keep ice thinner
270      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
271      * applied OBCS T/S mask to HEFFM sea ice mask
272    
273    checkpoint59d
274    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
275     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
276     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
277    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
278     and change default value of parameter "GM_Small_Number";
279     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
280       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
281       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
282    o pkg/ecco: cost function when applying pkg/smooth to controls
283    o pkg/ctrl: add forcingPrecond run time parameter
284    o pkg/seaice:
285     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
286     - fix bug in metric terms of u-equation in LSR solver (implicit part),
287       changes verification/lab_sea
288     - rearrange implicit part of u-equation in LSR solver to make it easier to
289       read, understand, and debug. This causes changes at the truncation level.
290     - fix (serious) bug in the boundary conditions (sign error in the implicit
291       part) of the LSR solver. Changes all LSR results.
292     - fixed problem with HSNOW initialization to avoid thick snow when AREA
293       is initilized with small values - does not change lab_sea results.
294     - added HsnowFile initialization capability
295    o pkg/smooth: addition to model/src and pkg/ctrl so allow
296     initialization of pkg/smooth and application to control vector
297    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
298    o dependencies: pkg/profiles requires pkg/cal
299    o pkg/profiles:
300     - added option ALLOW_PROFILES_GENERICGRID
301         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
302         that interpolation information (grid points and coefficients) is provided
303         within the netcdf input files.
304         -> sample matlab scripts can be found in MITgcm_contrib/gael
305         that allow you to prepare netcdf input files.
306     - also modified: cleaner include statements, cleaner error print statements,
307       cleaner stops when error, and more tests of the netcdf input files consistency.
308    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
309    o pkg/seaice:
310     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
311       requires a new routine: seaice_diagnostics_fill.F
312     - make sure that seaice does not move if not forced (pressure replacement
313       method, Hibler and Ip, 1995), changes results
314     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
315     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
316       It is turned off by default (=-1.), because it changes the results.
317     - make it possible to read AREA from a file, too.
318    
319    checkpoint59c
320    o add S/R and diagnostics for oceanic mixed-layer depth
321    o move GMRedi call after all vertical mixing schemes (including KPP)
322    o pkg/thsice:
323     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
324      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
325    o pkg/obcs:
326     - bug fix for balance code
327    o pkg/seaice:
328      - allow values of SEAICE_elasticParm > 1
329      - add new parameter SEAICE_evpTauRelax as an alternative
330        to SEAICE_elasticParm
331      - make lsr boundary conditions free slip (by default), changes result
332      - add code for no slip boundary conditions for lsr
333      - set minimum of zeta to zero (and not 4e8) (changes results)
334      - add a cap on AREA after advecting AREA if seaice_growth is not called
335    o change calculation of Visbeck K:
336      - no longer depend on tapering scheme; instead, compute slope (limited
337        by GM_maxSlope). this is equivalent to what was comuted before with
338        clipping or linear tappering.
339      - fix vertical averaging (wrong by 1/2 level)
340      - leave the old version (but will not be maintained) within
341        #ifdef OLD_VISBECK_CALC / #endif
342      - update output of exp. ideal_2D_oce
343    o change error catch in calc_r_star to improve vectorization
344    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
345      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
346    o adjoint:
347      Re-organized adjoint checkpointing according to Matt Mazloff
348      (but with modifs/completions/cleanups)
349      Storing is now bundled into large arrays to optimized I/O
350      (and second step in cleanup of the_main_loop)
351    
352    checkpoint59b
353    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
354      - export/import (between ocean & coupler) fields needed for ocean DIC.
355    o pkg/seaice:
356      - get rid of three more exchanges seaice_calc_viscosities (required
357        different loop boundaries in seaice_lsr and seaice_ocean_stress)
358      - bug fix in seaice_ocean_stress (update of lab_sea required)
359      - reduce loop boundaries to necessary minimum also in seaice_evp
360      - go back to the old way of computing deltaC/Z as the adjoint likes that
361        better
362    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
363      passive tracer to an Age Tracer) + update output.txt
364    o pkg/exf:
365      - implement A-grid / C-grid selection for wind-stress input files.
366      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
367      for now, in exf_bulk_largeyeager04.F only :
368      - change implementation for case where windspeed + 2. components wind-stress
369        are read-in. AND use rhoConstFresh to convert evap.
370    o pkg/seaice:
371      - use correct EXCH_UV for wind-forcing (on A-grid).
372      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
373        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
374    o pkg/exf:
375      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
376      EXF_INTERPOLATION:
377      - merge global_with_exf/code version of exf_interp_read.F
378        to the main code ;
379      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
380        reading the file ; Important: This options needs to be defined to recover
381        previous code.
382        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
383      - no longer loose real*8 precision along the way when using exf_iprec=64.
384    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
385      - change discretisation of evp-solver in order to avoid another exchange
386        (changes lab_sea) and clean up a little
387      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
388        help the adjoint (this also changes the results slightly)
389      - add a few "_d 0" where they had been missing in seaice_evp.F
390      - cleaning up: remove unused seaice_calc_rhs.F
391    o pkg/exf: some cleaning-up:
392      - change various "constants" into runtime parameters
393      - cleaned-up Large&Yeager04 routine which should eventually
394        replace exf_bulkformulae.F (changed names of S/R and CPP)
395        and merged various ALLOW_ATM_WIND options
396     only used with thsice pkg (in thsice_get_exf.F):
397      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
398        which are used when useStabilityFct_overIce=TRUE (= the default)
399      - change default values of ice & snow emissivity and scale downward LW
400        by ice & snow emissivity.
401    o pkg/thsice:
402     fix few little problems, in thsice_calc_thickn.F:
403      - growth vertically (and not laterally) if iceFrac == iceMaskMax
404      - melt only laterally if hIce < hThinIce (as the comments say)
405      and in thsice_extend.F:
406      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
407      - start to form ice as soon as the minimum ice-volume is reachable.
408     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
409      and cpl_aim+ocn
410    o pkg/kpp
411     - move computation of surface related input fields to KPP into a new
412       subroutine kpp_forcing_surf.F
413     - remove wrong (within bi,bj loops) EXCH calls.
414     - little cleaning (add argument myThid in last position, cvs header ...)
415     - for now, fix conservation problem by exchanging KPPviscAz (may not
416       be the best fix)
417    o pkg/seaice
418     - check for inconsistent evp parameter/cpp-flag combination
419     - remove leftover errIO flat for obsolete name list error handling
420    o OpenAD
421     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
422    
423    checkpoint59a
424    o pkg/seaice: some parameter clarifications and a little bit of clean up
425    o pkg/thsice: rename run-time parameters:
426       himin       -> hIceMin
427       himin0      -> hThinIce
428       hihig       -> hThickIce
429       i0          -> i0swFrac
430       transCoef   -> bMeltCoef
431       frac_energy -> fracMelting
432      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
433       with default values (for now) that do not change the results.
434      remove old version of thsice vars advection in pkg/seaice.
435    o in FFIELDS.h:
436      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
437      - make pLoad & sIceLoad always available (but still only used if
438         ATMOSPHERIC_LOADING is #define).
439    o pkg/kpp: replaced _KPP_RL with _RL
440    o bug fixes for vertical diffusivity computations when both KPP and
441        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
442        are no longer updating the vertical diffusivity array
443        (passed as argument) but are (re-) setting those arrays.
444    o pkg/seaice: fix bug in evp solver, while doing that
445      - change (improve?) discretization of stress computations for both
446        cgrid-lsr and evp solver
447      - add a new routine to compute strain rates
448      - the above changes lab_sea results
449      - add no slip conditions for evp solver (off by default), lsr-version
450        may follow
451      - fix exchange for shear at Z-points (does not change lab_sea)
452      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
453        (to force the user to pick a time step since there is not "safe" way
454        of choosing it)
455      - add principal stress diagnostics
456      - rearrange fields for evp a little to avoid having to call a: too many
457        exchanges and b: exchanges for stress trensor components which we do
458        not have.
459      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
460        of evp, complete rewrite for lsr case (latter is does not yet work
461        in all cases)
462    o pkg/kpp: add code to have mixing in shelf ice caverns
463      - add myThid to all kpp routines (long overdue)
464    
465    checkpoint59
466    o pkg/exf:
467      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
468        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
469      - move exf header files from lower_case.h to UPPER_CASE.h ;
470        add missing cvs Header & Name
471      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
472      - add namelist param. selectStressGridPosition, exf_monFreq
473      - retire many _CLIM routines, and remove data.exf_clim
474        + params moved to data.exf
475        + climsst, climsss now handled by exf_set_gen, i.e.
476          climss?period=0 refers to constant field,
477          climss?period=-12 to monthly forcing
478      - split up namelists in data.exf
479    o pkg/seaice:
480      - remove seaice_exch and seaice_exch_uv
481      - remove superfluous exchange of theta
482      - add myThid to seaice_budget_ocean/ice
483      - add new interface for atmospheric wind forcing (C-grid only)
484        + new routine
485        + two new field (taux, tauy for stress over ice)
486        + removed one global field (DAIRN) for C-grid case only
487    o pkg/thsise
488      - 2nd set of modifs for thsice adjoint in conjunction with exf
489    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
490    
491    checkpoint58y_post
492    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
493      vertical diffusivity, similar to that in MOM4; turned on using
494      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
495      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
496    o Added capability for 3D specification of background vertical diffusion
497      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
498      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
499      "data" file that contains the 3D vertical diffusivity coefficients.
500    o ice dynamics (pkg/seaice) with thsice thermodynamics:
501      - add code within pkg thsice to advect & diffuse sea-ice fields
502      similar to (and will replace) what has been added in  seaice_advdiff.F,
503      but: - conserving Mass, Heat & Salt.
504           - better when using non-linear advection scheme (not yet fully tested)
505           - can also be used in atmospheric set-up (for now, only the diffusion).
506    
507    checkpoint58x_post
508    o IO option for global-file compact format:
509      - add options when generating topology (utils/exch2/matlab-topology-generator)
510      - add I/O capability (pkg/mdsio).
511      - adapt utils/matlab/rdmds.m to read this format.
512      for now long-line format not yet supported by pkg/mdsio (& exch2).
513    o shelfice: add a few diagnostics
514    
515    checkpoint58w_post
516    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
517      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
518      (and replace horiVertRatio in NH code).
519      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
520                         and tutorial_plume_on_slope (sensitive to truncation)
521    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
522      directly to drive seaice model (C-grid only)
523    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
524     - reintroduce computation of wind from stress,
525     - compute tau (in exf_bulkformulae.F) from windstress averaged to
526       mass points to avoid tau = 0
527     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
528    o rdmnc.m: make it work with "global" files created with gluemnc
529    o rdmnc.m : some improvements in dealing with singleton dimension
530      (tested on all testreport mnc output files).
531    o genmake2: disable pkg/profiles if netcdf test fails.
532    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
533    o move call to cal_readparms up to make calendar parameters/variable available
534      to all packages
535    
536    checkpoint58v_post
537    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
538      useDynP_inEos_Zc tested.
539    o pkg/exf: changes to properly interpolate/mask/scale initial fields
540    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
541      and portions thereof.  See read_cs.txt for description and examples.
542    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
543      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
544      following the great-circle arc between those 2 points.
545    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
546      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
547    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
548     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
549     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
550     - still needs work (not working with some options ; efficiency to improve)
551       and serious testing.
552     - use this scheme for temperature & salinity in 2 advection test exp.:
553       advect_xy & advect_xz, respectively.
554    
555    checkpoint58u_post
556    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
557    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
558    o testreport: add option "-skipdir" to skip some test.
559    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
560      momentum calculation.
561    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
562    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
563      remove checkpoint.F and the_correction_step.F (no longer used);
564      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
565    o add option (linFSConserveTr) to correct for tracer source/sink due to
566      Linear Free surface
567    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
568    o pkg/thsice: fix reading mnc-pickups
569    
570    checkpoint58t_post
571    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
572    o pkg/mdsio:
573     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
574       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
575       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
576     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
577     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
578       either MDS_READ_FIELD or MDS_WRITE_FIELD )
579     - new S/R (to replace MDSWRITEMETA), which allows to write more
580       informations (variable names, time ...) to meta files.
581     - modify rdmds.m to give back the meta file content.
582    o pkg/diagnostics: change vertical interpolation to be safer, and more
583       flexible (define p-levels to interpolate to in data.diagnostics);
584      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
585       diagnostic pointer.
586    o pkg/seaice: more cleaning up of seaice_growth, added many comments
587    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
588    o fix multi-category seaice:
589     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
590       SEAICE_MULTICATEGORY
591     - fix short wave heat flux
592    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
593       and allow to use EVP solver. Change forward lab_sea: test both EVP
594       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
595    o Initial check-in of lab_sea adjoint
596      (very similar to natl_box_adjoint/code_seaice)
597      * used C-grid and EVP solver
598      * used KPP, GM/Redi
599      * uses inAdExact=.TRUE.
600      * gradient checks fail for both ADM and TLM
601        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
602        f.d. gradients actually seem more problematic than ADM, TLM gradients;
603        issue is related to forward mismatch between g77 an ifort
604    o pkg/seaice: overhaul of thermodynamics
605     - growth.F and groatb.F are replaced by new routine seaice_growth.F
606     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
607     - move a few global fields out of SEAICE.h into seaice_growth.F and
608       make them 2D (FICE/QNETO/ ...)
609     - remove FO (it is the same as QNETO)
610     - introduce a few local fields to avoid modifying external fields such
611       as atemp, etc.
612    
613    checkpoint58s_post
614    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
615      changed exf_set_gen.F so that
616        genperiod=0 means input file is one time-constant field and
617        genperiod=-12 means input file contains 12 monthly means
618    o CG2D: use pre-computed solver main-diagonal (stored in common block);
619      this affects truncation error ; generate new output file for exp. which
620      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
621        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
622        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
623        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
624        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
625        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
626    o start implementation of deep-atmosphere and anelastic formulation
627    o verification: remove 2nd copy of input files and use script "prepare_run"
628      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
629    o mom_common/vecinv/fluxform: fix a few initialisation isssues
630    o profiles: fix for multithreaded case
631    
632    o diagnostics: rename few diags:
633      s/'PRESSURE'/'RCENTER '/g
634      s/'TICE    '/'oceFreez'/g
635      s/'TAUX    '/'oceTAUX '/g
636      s/'TAUY    '/'oceTAUY '/g
637      s/'SWFLUX  '/'oceQsw  '/g
638      s/DIFx/DFxE/g
639      s/DIFy/DFyE/g
640      and add few ocean-forcing diagnostics:
641      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
642    o modifications to pkg/seaice/growth.F and budget.F, which change results of
643      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
644      as actual snow thickness.  It now refers everywhere to effective snow
645      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
646    
647    checkpoint58r_post
648    o modifications to pkg/seaice/growth.F, which change results of
649      lab_sea experiment: fixes pertain to melting snow over open water, to
650      masking EVAP under sea ice, and to using the correct AREA variable for
651      computations of EVAP, PRECIP, HSNOW, and GHEFF
652    o add ability to read bathy, salt, and theta using MNC (off by def)
653    o add flooding algorithm and advection of HSNOW for pkg/seaice;
654      both are turned off by default and do no change any results
655    o seaice advection with pkg/thsice: a step toward the use of non-linear
656      advection scheme, but #ifdef or commented out for now (requires more EXCH).
657    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
658      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
659      in natl_box (affects results @ truncation level: update output.txt)
660    o multi-threading and IO:
661      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
662      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
663        (needed to work with SingleCpuIO): tested in all verif. exp.
664    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
665      affects the results (but none of the verification test uses this scheme).
666    o Adding some pkg/diagnostics capability to pkg/seaice
667      (will certainly be subject to changes)
668    o ctrl: adding new control variables:
669      lwflux, lwdown, evap, snowprecip, apressure, runoff
670    
671    checkpoint58q_post
672    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
673      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
674      high_res_cube configuration by 4% on Columbia.
675    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
676      add (in global_with_exf/code) a version of EXF_INTERP_READ without
677      dynamical allocation (seems to work in multi-threaded).
678    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
679      single CPU io) so that TAF does not have to see EESUPPORT.h
680    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
681    
682    checkpoint58p_post
683    o obcs: stop if obcs is used with useCDscheme = .true.
684    o shelfice:
685     - fix a sign error so that no slip at shelfice interface works
686     - remove stop for combination non-hydrostatic code and shelfice. That does
687       not mean, that the results are correct, but at least they are numerically
688       stable
689    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
690    o added adjoint exch routined for all exch*3d* routines
691      and updated flow directives
692    
693    checkpoint58o_post
694    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
695      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
696    o change controling S/R for writing pickup file (new S/R do_write_pickup)
697      and clean-up reading/writing of pickup files.
698    o fix local version of read/write pickup (NH part) in rotating_tank/code
699    o simplify EXCH interface:
700     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
701     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
702    o added the regrid package
703    o shelfice:
704     - add a simple boundary layer scheme to reduce noise
705     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
706    
707    checkpoint58n_post
708    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
709       local variable (not in common block).
710    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
711      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
712      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
713        to work with SingleCpuIO.
714    o add "_d 0" to real constant of pkg/cfc subroutines ;
715       update exp. cfc_exemple & tutorial_cfc_offline output files.
716    o multi-threading and IO:
717      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
718        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
719      - barrier before and after reading.
720      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
721      - avoid using MDS_WRITELOCAL for LAND pkg output.
722      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
723        common-block variables ; Allows multi-threading with master-thread IO.
724    o change default MAX_NO_THREADS from 32 to 4 ;
725      and stop cleanly when MAX_NO_THREADS is too small.
726    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
727    
728    checkpoint58m_post
729    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
730       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
731    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
732       keep global_ocean.90x40x15 (for AD testing) with former secondary test
733       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
734    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
735        add MITgcm_tutorials (= code + all the tutorials)
736    o ecco, option to compute cost for total ssh (mean+anom)
737    o consistent with addition of ptracer and ssh in pkg/profiles
738    o profiles: adding ptracer and ssh
739    o testreport: change multi-test output-file name
740      (from output.txt.{name} to output.{name}.txt)
741    o profiles: now ok for mutli-tiles case
742    o seaice: add 4 parameters for different advection schemes for area,
743      (effective) seaice thickness, enthalphy, and snow height. Their default
744      is the standard parameter SEAICEadvScheme
745    o calc_gw:
746     - add cosFacU in zonal viscous flux (harmonic.visc.).
747     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
748       of tutorial_plume_on_slope.
749    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
750    o calc_gw: true flux-form, account for horizontal grid spacing.
751      update rotating_tank results, but not plume_on_slope (affected at
752      truncation level, 11 digits).
753    
754    checkpoint58l_post
755    o calc_gw:
756     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
757     - remove side-drag for now (need to fix it); update plume_on_slope results.
758     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
759    o commit code to make SST/SSS weights spatially variable
760      (based on either variable in-situ or variable initial T/S weights)
761    o pkg/ecco:
762      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
763        now based on horizontally varying weights wthetaLev, wsaltLev
764      * cost_averagesflags now returns year indices in addition to day, month
765      * sflux balance is performed on annual basis
766        (sflxumm, sfluxmm2, bal_sfluxmm)
767      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
768        including separate counting and multipliers
769    o pkg/rbcs
770      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
771    
772    checkpoint58k_post
773    o testreport:
774     - always build in dir. "build" (if not there, mkdir build instead of building
775       & running in input)
776     - run in dir run (if it exists), in build otherwise.
777     - call prepare_run (if input/prepare_run exists)
778     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
779    o pkg/exf modifications to interpolation and rotation routines for more
780       reasonable treatment of North Pole singularity: for tracers North Pole
781       value is set to northernmost zonal-mean value, for zonal velocity it is
782       set to zero, and for meridional velocity it is set to northernmost value.
783    o pkg/exf/exf_check_range.F
784     - add tile index to diagnostics and move stop statement to the very
785       end of the routine.
786    o pkg/diagnostics: (diagnostics_main_init.F)
787      define title of isomorphic variables according to the current config.
788    o pkg/thsice with pkg/seaice dynamics:
789    - fix domain of computation (interior only, required for exf) and do exchanges
790    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
791    o towards a standard way of dealing with multi-threading in MONITOR
792      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
793    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
794       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
795    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
796    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
797    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
798       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
799    o tracer advection:
800     - clean-up and simplify calc_common_factors.F
801     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
802       advection subroutine (but still not used within DST advection S/R)
803    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
804    
805    checkpoint58j_post
806    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
807      from file (collects calls previously in FORWARD_STEP)
808    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
809    o adjoint store dir. adjusted accordingly
810    o genmake2
811      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
812    
813    checkpoint58i_post
814    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
815      on wind stress (SEAICEstressFactor defaults to 1.)
816    o Total number of Timers is finite (<=40): comment out 2 non-essential one
817      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
818    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
819      on CS-grid: no longer loosing mass.
820    o exf & curvilinear-grid: no longer modify longitude xC & xG.
821    o pkg/ggl90: fix sloppy output and fix a bug
822    o pkg/seaice: added SEAICEuseEVPpickup parameter
823      - Set to false in order to start EVP solver with
824        non-EVP pickup files when using SEAICEuseEVP
825      - fix sign error in diffusion in seaice_calc_rhs
826    
827    checkpoint58h_post
828    * Modifications for bottom topography control
829      o replace hFacC by _hFacC at various places
830      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
831      o add non-self-adjoint cg2d_nsa
832      o update autodiff support routines
833      o re-initialise hfac after ctrl_depth_ini
834      o works for 5x5 box, doesnt work for global_ocean.90x40x15
835    * Adding verification for 5x5 box (4-layer) bottom topography control
836    
837    checkpoint58g_post
838    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
839       used for mean seasonal cycle, mean diurnal cycle); add an example
840       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
841    o pkg/ggl90:
842      - add parameter (minimum surface kinetic energy)
843      - fix bug (avoiding division by zero)
844    o couple pkg/thsice to pkg/seaice:
845      - modify advection in seaice to accomodate new scalar fields to be advected
846      - only muliDimAdection scheme work with seaice/thsice
847      - mapping of thsice-variables to seaice-variables, back and forth
848      - does not break the verification experiments, but does not give the
849        desired results either
850    o pkg/seaice
851      - make (default) second order advection a bit less confusing?
852    
853    checkpoint58f_post
854    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
855      to pkg/seaice):
856      - new routines thsice_map_exf and thsice_get_exf provide the interface
857      - add an additional formal parameter to thsice_solve4temp
858    o pkg/exf:
859      - add new fields wspeed, snowprecip (to be able to couple to thsice)
860      - correct Stefan-Boltzmann constant
861      - new parameter for longwave surface emittance
862      - separate some stuff from exf_bulkformulae into new routines  
863        exf_radiation, exf_wind
864      - add new parameters and constants: longwave emissivity for ocean, ice
865        and snow, evaporation parameters over ice
866      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
867        either wind from stress or stress from wind
868    o pkg/thSIce:
869    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
870    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
871       and THSICE_CALC_THICKN
872    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
873    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
874      to make debugging easier.
875    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
876    o pkg/bulk_force:
877      - clean-up comments and parameters ;
878      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
879    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
880      generate new output for test-experiment: aim.5l_cs.thSI
881    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
882      testreport accordingly
883    
884    checkpoint58e_post
885    o SEAICE_CGRID adjoint done
886    o R_STAR adjoint implemented.
887      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
888      * need to sort out init. of h0facc, etc.
889    o Make pkg/profile fully independent of ecco,cost, etc. stuff
890      to be able to use it in pure forward.
891    
892    checkpoint58d_post
893    o upgrade simple test-experiment to tutorial example:
894     step.1: duplicate the experiment and (step.2) will remove the old copy.
895      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
896      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
897      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
898      tutorial_global_oce_biogeo    <- copy of dic_example
899      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
900      tutorial_plume_on_slope       <- copy of plume_on_slope
901      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
902      tutorial_global_oce_optim     <- empty for now (David ?)
903      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
904     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
905    o correct a sign problem in cost_scat.F
906    o obcs and ptracers: fix boundary conditions for advections schemes
907      with larger stencil
908    o thsice adjoint: start
909    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
910      completeness
911    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
912      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
913    o ptracers adjoint:
914      * avoid extensive recomputatations
915      * fix missing re-init. of gptr (missed by TAF)
916    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
917      me to turn off the excessive output to STDOUT that this package produces
918    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
919      and add those terms in Vector-Invariant formulation.
920    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
921      if the control period (xx_hfluxperiod etc) is 0
922    o in profiles pkg, clean routines and fix details
923    o in ecco pkg, reading ssh data:
924      fix problem in case the model does not start at iter0=0
925    o fix mnc-pickup/restart for ptracers
926    o new package prifiles:
927      code to compute profile-based cost by Gael Forget
928      (modifs in ecco, ctrl, autodiff)
929    o Benign bug fix in initialization (spotted by M. Mazloff) of
930      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
931    
932    checkpoint58c_post
933    o adjoint: finish NLFS adjoint and provide reference output in
934      verification/global_ocean.90x40x15/results_ad_nlfs
935    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
936      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
937      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
938      with SEAICE_CGRID defined.
939    o move calendarDumps from "data" to "data.cal" and clean-up the code
940      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
941    o add useEXF & useCAL flags (for now, set in hard-coded way)
942    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
943      (were missing in NH mode, and wrong in quasihydrostatic mode).
944      waiting for Chris updated version of calc_gw to add those CALLs.
945    o fix bug in quasihydrostatic S/R ;
946      add a test for this option: global_ocean.90x40x15.qshyd
947    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
948      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
949    o add on/off flag useOffLine for package OFFLINE
950    o seaice:
951      - modify advection so that it works also on the C-grid
952      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
953        problem in multi-tile runs with C-grid
954      - add flags for clipping ice velocities and/or masking solver forcing
955      - fix drag (ocean on ice) formulation and a bug that caused noise in the
956        C-grid solver
957      - added a few comments to seaice_diffusion.F
958      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
959        are now exclusive)
960      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
961        required re-ordering the code a little:
962       + make DAIRN global variable (defined in SEAICE)
963       + move computation of the viscosities eta and zeta into a new separate
964         routine (because I need to recompute them in seaice_ocean_stress.F)
965    
966    checkpoint58b_post
967    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
968      update output.txt of exp. aim.5l_cs.thSI
969    o various mnc cleanups and improvements:
970      + shrink lookup tables by factor of ~4
971      + better error reporting when running out of lookup space
972      + able to handle longer path/file names (up to 500 chars)
973    o adjoint:
974      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
975      - TBD: "hidden" mom_vecinv recomp. in dynamics
976    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
977     (allow to differentiate between forcing components using new integer flags:
978      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
979     and add new flag to put Dissipation tendency out of Adams-Bashforth.
980    o ecco
981      - enable trend removal from SSH anomaly obs.
982    o adjoint
983      - a fix for PmEpR when #undef EXACT_CONSERV
984      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
985      - try to fix "hidden" recomp. in forward_step for NLFS
986        (NLFS seems broken sometimes after I checked it in)
987    o seaice:
988     - add c-grid version of the dynamic solver:
989       + three new routines that are the c-grid substitute lsr, dynsolver
990         and ostres
991       + put a few fields that were local to dynsolver into global common
992         blocks, so that I can move the computation of stresses etc into
993         seaice_lsr (saves coding but may break the adjoint).
994     - replace more hardwired parameters by runtime parameters
995     - add ice masks that mask the rhs of the implicit solvers where there
996       is no ice (commented out in seaice_dynsolver, because i am not sure
997       if this works properly), eventually this should replace the clipping
998       of ice velocities in seaice_dynsolver to +/-40cm/s.
999    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1000      include it only where its needed
1001    o move balancing of fluxes before the call of external_forcing_surf
1002    o seaice:
1003      - correct units of turning angles (now they are really in degrees)
1004      - move computation of GWATX/Y out of main routine into dynsolver
1005      - initialize GWATX/Y in seaice_init
1006    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1007      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1008    o seaice: add runtime flags for turning angles (default to zero)
1009    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1010      and trend from exf forcing and ctrl control adjustments
1011    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1012      (since checkpoint57x_post)
1013    o change the default rotation period to 86164.s = the Earth rotation
1014    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1015      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1016    o seaice advection: add code for choosing between the default (2nd order
1017      central differences) and multiDim advection schemes provided by
1018      pkg/generic_advdiff
1019    o seaice:
1020      - removed all references to SEAICE_GRID.h fields from
1021        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1022        (cubed-sphere configuration will change a little)
1023      - grid computations in seaice_init are obsolete now.
1024      - cleaned up code a little so that is easier to read (hopefully).
1025      - added new (better?) discretizations of default advection and diffusion
1026        (turn on with SEAICEuseFluxForm)
1027      - replace 1 in 3d global fields by kSurface in growth.F
1028      
1029    checkpoint58a_post
1030    o seaice:
1031      - bug fix in advect.F
1032    o shelfice:
1033      - separate shelfice load anomaly from pload (breaks with time
1034        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1035        Its default is 0., but it may be computed more cleverly from (unknown)
1036        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1037        done offline. A good approximation of the pressure load anomaly is
1038        necessary to avoid large initial adjustment processes underneath
1039        deep-reaching shelfice.
1040      - small fix in ISOMIP shelfice_thermodynamics
1041      - add more sophisticated thermodynamics of Hellmer (1989), this is
1042        now the default
1043      - give a few constants more intuitive names
1044    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1045      if bulk formulae are used in long integration (especially EmPmR). Turn
1046      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1047      if balancePrintMean, the imbalance that is substracted is printed to
1048      STDOUT.
1049    o fix bug (typo) in obcs_apply_eta.F
1050    o add a new package shelfice which enables us to model the circulation
1051      underneath shelf-ice with draughts of hundreds of meters.
1052     - works
1053     - to do: + include improved thermodynamics
1054              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1055                instead of new field kTopC
1056              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1057                instead of new field R_shelfIce and new code in ini_depth.F
1058                and ini_mask_etc.F?
1059              + adjust vertical mixing schemes?
1060    o seaice pkg:
1061     - add a cpp-flag to include a simple formula for a salinity dependent
1062       freezing point of sea water at the surface
1063     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1064       meridional stresses are now different (and hopefully correct)
1065    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1066       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1067       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1068    o pkg/diagnostics: add options and parameters for regional-statistics
1069       diagnostics ; define regions by reading a region-mask from a file
1070       (might add other options later)
1071    o pkg/bulk_force:
1072     - add option and parameters to use AIM surface-flux formulae.
1073     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1074       others forcing fields (defined in PARM05, parameter file "data") are loaded
1075       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1076     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1077     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1078     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1079       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1080     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1081    
1082    checkpoint58
1083    o add "--embed-source" option to genmake2 which, when the supporting
1084      tools can be compiled (as determined by genmake2) will turn on the
1085      embed_files package which then embeds the entire MITgcm source code
1086      (*.[fFhc] + Makefile) used for the build within the executable
1087      - requested by CNH but off by default
1088      - adds a paltry <9MB to the mitgcmuv executable in most cases
1089      - only writes the output when useEMBEDSRC in eedata is true
1090    o clean up 3-dim. relaxation codes:
1091      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1092      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1093      * Thanks to Tom Haine for testing!
1094    
1095    checkpoint57z_post
1096    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1097      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1098    o fix the pickup behavior for obcs in combination with ptracers
1099    o fix a bug in ptracers_external_fields_load
1100    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1101      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1102    o transfered surface NH pressure to eta field (if exactConserv).
1103    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1104         and update lab_sea output.txt file.
1105    o completing 3-dim. relaxation code: additional term
1106         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1107      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1108      * At compile time, in "EXF_OPTIONS.h" set
1109          #define  ALLOW_CLIMTEMP_RELAXATION
1110          #define  ALLOW_CLIMSALT_RELAXATION
1111      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1112          tauThetaClimRelax3Dim = 15552000.0,
1113          tauSaltClimRelax3Dim  = 15552000.0,
1114      * 3 cases:
1115          1) Use a constant-in-time 3-dim. field
1116          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1117          3) Real-time relax. to time-evolving prescribed field
1118    o Adding Laplacian-type smoothness constraint on
1119      initial and boundary (forcing) controls (ic, bc)
1120      * enable at compile-time via
1121        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1122      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1123      * Absolute scale somewhat unclear so far
1124      * no area weighting was included since no other cost term does so far
1125    
1126    checkpoint57y_post
1127    First step for a NLFS adjoint
1128    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1129    o new init. routines for calc_r_star, calc_surf_dr
1130    o still need to deal with ini_masks_etc
1131    o testreport seemed happy
1132    checkpoint57y_pre
1133    
1134    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1135    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1136    o add new offset feature to offline pkg (plus minor cleanup)
1137    o cfc fixes for final year of integration
1138    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1139      be in GCHEM_OPTIONS).
1140    
1141    checkpoint57x_post
1142    o fix testreport Pb in multiple test experiment.
1143    o cleanup our namelist syntax in verification:
1144      - make it more F95 standards compliant (some work still needed)
1145      - allows the vast majority of our tests to work with gfortran
1146    o Non-Hydrostatic:
1147     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1148     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1149    o Allow to apply AB on T,S rather than on AB(gT,gS):
1150     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1151     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1152       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1153     - need a "clever" read_pickup to restart from the other AB formulation
1154    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1155    o remove some unused variables (reduces number of compiler warnings)
1156    o adjoint
1157      * Disable useVariableViscosity for adjoint for time being
1158        (there are a number of extensive recomputations)
1159      * Initialize certain variables needed for adjoint
1160    
1161    checkpoint57w_post
1162    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1163                 fix the singleCpuIO RS version of MDSWRITEFIELD
1164       and add a WARNING if using globalFiles=T with multi-processors.
1165    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1166      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1167    o tracer advection scheme:
1168      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1169       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1170       was not very convenient).
1171      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1172       (further tests needed for the implicit DST & Flux-Limiter schemes).
1173    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1174      and sRef for convenience, handy, when you want to initialize
1175      ptracers in a large domain with a constant non-zero value. Also,
1176      untangle ptracers_init.F a little.
1177    
1178    checkpoint57v_post
1179    o change dome exp. to use variable viscosity in side-drag terms.
1180    o remove all the files from the cfc_offline test since they are now
1181      incorporated into tutorial_cfc_offline which has been producing
1182      identical results for a few days of testing
1183    o add new parameter: sideDragFactor to enable half-slip-side BC
1184      and change side-drag S/R to use viscosity from mom_calc_visc
1185      (can switch back by setting sideDragFactor=0.); affects results at
1186      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1187       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1188    o vorticity & strain are now computed without masking, to account for
1189      no-slip-side BC in variable viscosity calculation ; mask is applied
1190      anyway later on, before computing advection/coriolis terms.
1191    o modify exp4 to test new obcs support for reading from external files
1192      and for passive tracers
1193    o fix behavior of ptracers_monitor when monitor output is written to a
1194      netcdf-file; still not independent of monitor.F (writes in the same
1195      file).
1196    o change default value of tRef (put a uniform, meaningful value for ocean
1197      & atmos) and initialize sRef (was missing, as Martin mentioned).
1198    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1199      to be proportional to enstrophy dissipation length.  Thus,
1200       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1201      This is now consistent with Smagorinsky and with the manual.
1202    
1203    checkpoint57u_post
1204    o OBCS and PTRACERS: add open boundary support for passive tracers
1205      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1206        OB-values from file; this is not different from the way theta and salinity
1207        are treated
1208      - however, Orlanski-radiation conditions are not supported, and the model
1209        will stop if you use pTracers and Orlanski at the same time.
1210      - beefed up the rountine obcs_external_fields_load: now only those open
1211        boundary values are overwritten with values from files for which there
1212        are really files, otherwise the OB-fields remain untouched. This makes
1213        it possible to use different OBs at different ends of the domain (as
1214        with EXF)
1215    o reduce number of exch calls in shap_filt (s2).
1216    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1217      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1218    
1219    checkpoint57t_post
1220    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1221    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1222      same truncation, independent of the face number: affects affects several
1223      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1224    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1225      note that biharmonic viscosity + no-slip was not tested in any experiment.
1226    o fix bug in non-linear free-surf side-drag ; generate new output for
1227      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1228    o make mnc honor the writeBinaryPrec flag for most kinds of output
1229    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1230    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1231      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1232    o add brackets in multi-terms sum to get same truncation, independent of
1233      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1234      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1235    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1236      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1237      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1238      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1239      Suggested values of viscosity parameters found in mom_calc_visc.
1240      Many new viscosity diagnostics available.
1241    
1242    checkpoint57s_post
1243    o Add clearing-house for viscosity calculations, mom_calc_visc and
1244      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1245      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1246      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1247      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1248      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1249      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1250      ViscAhStrain and viscAhTension are now retired.
1251    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1252    o In response to JMC's bug report, genmake2 now ignores any soft-links
1253      that it finds in the *current* directory when searching for files.
1254      Soft-links found in any other source directories will still work as
1255      they did before.
1256    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1257      a C routine to unlimit the stack size
1258    o mnc-ify pkg/aim snapshot vars
1259    o mnc-ify pkg/land as requested by Daniel
1260    o various changes to mnc including:
1261      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1262      - output can now be grouped so that all files within a group
1263          change the ITER portion of their names in lock-step together
1264      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1265          and works with both EXCH1 and EXCH2 (but needs more testing)
1266      - writing works for all verification test cases w/ g77 on Linux
1267    
1268    checkpoint57r_post
1269    o make MNC variable initialization happen earlier
1270    o add diagnostics for (almost) each term of the momentum Eq.
1271    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1272    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1273    o remove MINIMAL_TAVE_OUTPUT option ;
1274      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1275    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1276      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1277    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1278    o add time-dependent SST, SSS control
1279    o cost terms in ecco/ modularized (new cost_generic.F)
1280    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1281    o new infrastructure for seaice model vs. obs misfits in seaice/
1282      * driver from the_main_loop.F is seaice_cost_driver.F
1283      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1284      * gradient check in Exp. 6a of natl_box_adjoint/
1285    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1286      (see README file)
1287    
1288    checkpoint57q_post
1289    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1290    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1291      - bug was reported by Jean-Michel and Ian Fenty
1292    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1293      update exp. cpl_aim+ocn output.
1294    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1295      Needed for high-res. runs with large global files
1296      to be able to limit tapelev size
1297    o Changed some tests for adjoint:
1298      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1299      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1300      * global_ocean.90x40x15/ back to default 3-level checkpointing
1301    o Modifications to enable scripted COMMON to MODULE conversion
1302      * verification/OpenAD/code/ has necessary scripts and description;
1303      * converts, compiles and runs successfully;
1304    
1305    checkpoint57p_post
1306    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1307    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1308      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1309    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1310    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1311      (was already the case for dissipation with mom_vecinv,
1312       and also the case for grad.PhiHyd when staggered-timeStep)
1313      This will allow to put dissipation out-off the AB time-stepping.
1314     Unfortunately, affects truncation error. Update output of exp. that "fails"
1315      (cg2d matching number) and leave the others for later: front_relax(10),
1316      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1317      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1318    
1319    checkpoint57o_post
1320    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1321      (2) its ready to be documented during the 20050801 DocFest
1322    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1323      for ideal_2D_oce and lab_sea on linux_ia32_g77
1324    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1325      in global1x1_tot/code_seaice_adj to access indices 32, 33
1326      (worth another tag)
1327    
1328    checkpoint57n_post
1329    o adding precip control xx_precip 32
1330    o adding swflux control xx_swflux 33
1331    o Replacing 10 forcing penalty cost routines by 1 generic.
1332    o Implementing partitioning in time-mean and variable adjustment
1333      for atmos. state.
1334    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1335    o in natl_box_adjoint:
1336      * updated exp 1 to 10
1337        (but does not have time-mean vs. variable split results yet)
1338    o updated global1x1/*_seaice_adj/
1339      to incorporate latest changes
1340    o enable useSingleCpuIO for mdsio vector routines
1341      (applies in particular to tapelev I/O)
1342    o removed inefficient K-loop in all active_file*control*.F
1343    
1344    checkpoint57m_post
1345    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1346      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1347    o pkg/exch2: filling of face-corner halo regions is optional
1348      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1349    
1350    checkpoint57l_post
1351     tag before updating tutorials (pre-release-2)
1352    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1353       for output and interpolation of input fields onto model grid)
1354    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1355       Affects results of exp. rotating_tank ; update output.txt.
1356    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1357          and taking the square quantity and/or using a fraction-weight field.
1358    o fix aim_diagnostics_init.F mate numbers.
1359    o add mnc output capability to diagnostics/diagstat and update
1360      our cvsignore files for the ACSII output generated
1361    
1362    checkpoint57k_post
1363    o lab_sea now uses diagnostics package and provides a suite of
1364      new EXF diagnostics output.
1365    
1366    checkpoint57j_post
1367    o exf
1368      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1369        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1370        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1371      * extended diagnostics output
1372        - now includes all EXF variables
1373        - hs, hl moved to common block
1374        - separate S/R for diagnostics, called after ctrl vector is added
1375        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1376        - EXFqnet contains true Qnet (i.e. includes qsw)
1377      * updated verif. lab_sea, global_with_exf
1378      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1379        to ensure that diagnostics sees a true EXFqnet
1380    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1381    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1382      several times with different frequencies.
1383    o mnc-ify the thsice package as requested by Daniel Enderton
1384      - the monitor--MNC output needs work
1385      - many attributes need to be added (most are currently blank)
1386    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1387      - many attributes need to be added (most are currently blank)
1388    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1389    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1390    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1391      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1392         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1393    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1394     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1395    
1396    checkpoint57i_post
1397    o Diagnostics package was changed: diagnostic allocation is now deactivated
1398      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1399    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1400      add 1rst Order upwind vertical Shear.
1401    o add a quick fix for A/B checkpointing in OFFLINE mode
1402    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1403      end-run around the C/Fortran linking horror in eesup/src/timers.F
1404    o added pkg/runclock: allows user to terminate run based on wall clock
1405    o added non-hydrostatic scaling parameter: nh_am2
1406    o pkg/my82: futile attempt to make results compiler-independent by adding
1407      some "_d 0", etc. no effect.
1408    o for mnc output, fill the 'T' coordinate var with myTime and create a
1409      separate 'iter' variable for iteration count
1410    o pkg/diagnostics:
1411      add new capability: output of Global/Regional & per-level statistics ;
1412      tested against monitor output (including land & thSIce) on various exp.
1413    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1414    
1415    checkpoint57h_done
1416      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1417      data.diagnostics, data.gchem, data.ptracers) is done.
1418    
1419    o pkg/diagnostics: prepare for Global/Regional statistics.
1420      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1421    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1422      and rename it: DIFFERENT_MULTIPLE
1423    
1424    checkpoint57h_post
1425    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1426    o pkg/diagnostics: change output frequency, now in seconds (instead
1427      of Nb of iterations). This requires to change data.diagnostics.
1428    checkpoint57h_pre
1429    
1430    o in mnc, let the user create the output dir if both mnc_outdir_date
1431      and mnc_outdir_num are false
1432    o add fflags() to pkg/diagnostics which allows one to specify, on a
1433      per-file basis, the file precision [default behavior is unchanged]
1434    o added diagnostics to pkg/kpp, including computation of mixed layer
1435      depth based on a temperature/density criterion
1436    o updated verification/natl_box to test the new pkg/kpp diagnostics
1437    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1438    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1439    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1440      not mnc -- this mistake was found by JMC and is now corrected
1441    
1442    checkpoint57g_post
1443    o add Adams-Bashforth 3rd Order time stepping:
1444      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1445      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1446    checkpoint57g_pre
1447    
1448    o make lambda[Theta,Salt]ClimRelax spatially varying
1449      (default remains spatially uniform constant based on tau)
1450    o added new control variables
1451      * init. uVel, vVel, etanN
1452      * lambda[Theta,Salt]ClimRelax
1453    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1454      (suggested by G. Forget)
1455    
1456    checkpoint57f_post
1457    o add parameter "baseTime" = model base time = time at iteration zero
1458      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1459      account for baseTime shift
1460    o move Coriolis arrays from PARAMS.h to GRID.h
1461    checkpoint57f_pre
1462    
1463    o mnc-ifying the seaice package
1464    o introduced an alternative length scale calculation for use in the limiting
1465      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1466    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1467    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1468      as well as grad(vort3).  Made it compatible with both approximate form
1469      for the cubed sphere and full form of these gradients.  Added flag
1470      useFullLeith to select between approximate and full form.  
1471    o add "d0" in getcon.F to reduce differences between compilers/platforms
1472      update output.txt of exp. fizhi-gridalt-hs
1473    o change port_rand funtion to allow to set the seed.
1474    o fix obscure MNC bug involving conversion between reals and integers
1475      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1476        new version is now more standards-compliant
1477    o adjoint-related modifications
1478      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1479      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1480      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1481    
1482    checkpoint57e_post
1483    o Adding eddy stress controls a la Ferreira et al.
1484    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1485    
1486    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1487      update output.txt of exp. fizhi-gridalt-hs
1488    o add more "Z" dimensions and associated coordinate vars to MNC
1489    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1490    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1491      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1492      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1493      months and years.  Requires pkg/cal.
1494    o diagnostics: add pickup functionality
1495      - off by default for backwards compatibility
1496      - current version only uses MDSIO -- MNC will be added
1497    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1498    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1499    
1500    checkpoint57d_post
1501    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1502    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1503      output from the diagnostics package
1504    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1505    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1506      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1507    o add coordinate variables to the MNC output from the diagnostics package
1508    o change MNC-flags default value: true when useMNC=TRUE
1509    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1510      the ability (off by default) to read the grid information using MNC
1511    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1512    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1513    o do snap-shot diagnostics at the middle of the time-interval (instead of
1514      at the end).
1515    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1516      new test for AIM with thSIce + slab-ocean
1517    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1518    o move state variable diagnostics to the beginning of the time step ;
1519      (note: still needs some work specially for snap-shot diagnostics)
1520      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1521    
1522    checkpoint57c_post
1523    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1524    o generate new output.txt files on faulks with g77 & the new -ieee option
1525    checkpoint57c_pre
1526    
1527    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1528      update output.txt of exp. global_ocean.90x40x15
1529    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1530      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1531    o add saltFlux(+File) forcing capability with periodicExternalForcing
1532    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1533    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1534    o improvements for the MNC output from DIAGNOSTICS:
1535      - correct handling of the unlimitied dimension
1536      - all dims now have associated coordinate variables
1537      - variables located at U, V, and Corner ("Z") points are now written
1538        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1539        *all* data points are output
1540    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1541    o added pkg/seaice/seaice_monitor.F
1542    o mdsio_readfield.F can now read files visible only to master MPI process.
1543    o pkg/seaice: some test code for ice-modified ocean stress
1544    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1545      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1546      spurious negative numbers for precipitation and humidity.  Will cause
1547      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1548    o pkg/ctrl/
1549      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1550        May be enabled via doPackDiag
1551      *  introduce z-scaling of
1552         + gradient (doZscalePack) and
1553         + control (doZscaleUnpack)
1554    o pkg/mdsio/
1555      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1556      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1557    
1558    checkpoint57b_post
1559    o simplify options in diagnostics_fill arguments (remove weird combinations)
1560    o fix MNC coordinate variables so that they now contain per-face index
1561      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1562      general, EXCH2 grids are only aligned to a "local" coordinate system
1563    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1564    o Implement instantaneous output within pkg diagnostics:
1565      setting a negative frequency in data.diagnostics produces
1566     "snap-shot" output (as opposed to time-average if freq > 0)
1567    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1568      NOTE: change ptracer diagnostics name: use 2 characters to work with
1569            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1570    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1571      becomes the coordinate variable for the 'T' dimension
1572    o add CF-style coordinate variables to MNC
1573      - just a first cut:  numbers are meaningless on the cubesphere and
1574        missing along the T axis but otherwise it works!
1575    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1576    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1577    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1578      this is based directly on what the model compute, so that the content of
1579      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1580    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1581    o clean up build options files for SunOS, in particular
1582      - remove -traditional from xmakedepend
1583      - change -xarch=v9 to -xarch=native for f77
1584      - restore use of make (not gmake)
1585      - add CC=gcc if using g77
1586    o changes per discussion of AM, JMC, & EH3 today:
1587      - move redundant "grid" variables out of "state" -- in preparation of
1588        creating proper CF-style coordinate variables and in recognition
1589        that any/all grid variables can be easily copied (eg. w/NCO) from
1590        the grid files into any of the other NetCDF files
1591      - *always* output grid variables with MDSIO (this will eventually be
1592        changed)
1593      - output MNC grid file if useMNC is true
1594    o every instance of _END_MASTER() has been found and replaced with
1595      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1596      preprocessors
1597    o re-arrange diagnostics pkg initialisation:
1598     - allow each package to extend the available diagnostics list
1599     - add some checking and fix small problems (multi-threaded, ...)
1600     - new S/R diagnostics_fill (replace fill_diagnostics):
1601       look through the short list of active diag. (instead of the long list)
1602       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1603    
1604    checkpoint57a_post
1605    o this set of changes restores TAMC compatibility
1606      tested for global_ocean.90x40x15 adjoint on trough
1607      (what a pain)
1608    
1609    checkpoint57a_pre
1610    o some modifs in tools/build_options for sunos
1611    o call ctrl_pack for ctrl at end for optimcycle=0
1612    
1613    checkpoint57
1614    o add horizontal bi-harmonic viscosity for vertical velocity
1615      - new parameter viscA4W (defaults to viscA4)
1616      - affects only non-hydrostatic code
1617      - to be done: no-slip lateral boundary conditions
1618    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1619    o implement Implicit Vertical advection for pTracers
1620    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1621      (implemented also for implicit vertical diffusion & advection)
1622    o OBCS: extend application of tracer open boundary conditions
1623      to a strip beyond the boundary of width Olx/Oly
1624    o add call monitor to TAF set of required calls (flow directives)
1625      and include in natl_box_adjoint
1626    o untangle a few ifdefs related to cost, ctrl, autodiff
1627      untangel a few ALLOW_ECCO_OPTIMIZATION
1628    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1629      (theta2, salt2 in ecco_cost_weights)
1630    
1631    checkpoint56c_post
1632    o OBCS as control variables
1633      - update ctrl_ad_diff.list, obcs_ad_diff.list
1634      - remove balance of obcs controls from default
1635      - fix index bug nobcs in ctrl_init
1636      - fix dummy fields filen in ctrl_pack
1637      - add dummy weights for obcs
1638    o lsopt: comment out fort.94 output
1639    o optim:
1640      - remove unnecessary header files
1641      - adjusted namelists
1642      - add xerbla.F to Makefile
1643    o exf:
1644      - multiple modifications of exf_check_range
1645      - unit change in exf_init_runoff from [m/year] to [m/s]
1646    o mdsio:
1647      - i/o-vector change debugLevel from debLevA to debLevB
1648    
1649    checkpoint56b_post
1650    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1651      is called from DO_THE_MODEL_IO
1652      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1653      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1654      - clean up PTRACERS_WRITE_TIMEAVE a little
1655    o add another verification experiment that tests both the cfc-pkg and
1656      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1657      reactive tendencies treated inline with regular timestepping
1658    o testreport previously did a lousy job of comparing small numbers, so
1659      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1660      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1661      testreport.
1662    o ptracers_monitor: bug fix for MPI
1663    
1664    checkpoint56a_post
1665    o GCHEM: finish reorganizating the package
1666      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1667        (introduces another 3D-array for each passive tracer, but only if
1668        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1669        gchemTendency is not needed because the timestep is done separately)
1670      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1671      - GCHEM is now---more or less cleanly---separate from PTRACERS
1672      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1673        so clear to me how that should be done in a general way.
1674    o CFC: improve formatting of output in CFC_ATMOS
1675    o PTRACERS:
1676      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1677        that ALL experiments with ptracers enable can be checked. This makes
1678        GCHEM_MONITOR obsolete.
1679      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1680        monitorFreq
1681      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1682    o add PTRACERS (PTR0[1-5]) to testreport output
1683    o exf_check_range:
1684      * default changed to .TRUE.
1685      * will check values for niter0 if debLevA, every timestep if debLevB
1686      * STOP in exf_check_range if 'out of range'
1687      * range chosen generous to allow for potential extema
1688      TBD: a version with stricter range
1689           permitted range would be runtime parameters
1690    o GMredi:
1691      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1692      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1693      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1694    o GCHEM:
1695      - move call to GCHEM_FORCING_SEP, so that it is now called before
1696        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1697      - introduced a useGCHEM runtime flag and applied it everywhere.
1698      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1699        this flag is now only visible within GCHEM-pkg routines.
1700      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1701        be replaced by a 3D array that is computed before thermodynamics; for
1702        this, the tracer ID iTracer had to be included into the parameter list
1703        of ptracers_forcing
1704      - set up forward_step to call gchem_forcing, that will replace
1705        gchem_forcing_int in ptracers_forcing
1706      - cleaning up
1707    o small cleaning of exch2: remove files that are also in eesupp/src
1708    
1709    checkpoint56
1710    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1711    o mnc: cleanup "full" files--fixes out-of-memory problem
1712    o ECCO-GODAE
1713      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1714      * fully merged and updated from SIO code
1715        windstress sign change affects
1716        - exf_inscal_[u/v]stress
1717        - sign of xx_tau[u/v] adjustments
1718        - signs in cost_scat
1719      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1720      * natl_box_adjoint updated and compressed
1721      * 2-level checkpoint switch added
1722        (tested in EXP. 1 of natl_box_adjoint)
1723      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1724    o SVD
1725      * first complete, non-hacked version for SVD calculations
1726      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1727        performed via direct access files admtlm_vector.it????
1728        (via ctrl_[un]pack)
1729      * optimcycle is used for ARPACK iteration counter
1730        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1731      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1732        and add linear transforms where necessary
1733      * controls are initial/final SST, SSS (can be extended; need to check
1734        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1735    o mdsio: filename info to both stderr, stdout
1736    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1737      from sign change
1738    
1739    checkpoint55j_post
1740    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1741      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1742    o add consistent build directories and .cvsignore files to verification
1743    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1744    o make all subroutines 30 or less characters in length for certain older
1745      compilers to work (a thorough search only turns up two routines in
1746      pkg/ptracers)
1747    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1748      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1749    
1750    checkpoint55i_post
1751    o change arrays for total vertical diffusivity (2.D if explicit,
1752      3.D if implicit) ; each ptracer uses its own background value.
1753    o added mnc/NetCDF output capability to ocn_compon_interf
1754      - added bits to verification/cpl_aim+ocn so that it can run on
1755        ITRDA and other clusters without the mpirun "-wd" option
1756    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1757      configuration
1758    o give MNC the ability to create additional files rather than
1759      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1760      - the default is just less than 2GB which is a practical limit
1761        on many systems
1762    o Compute the non-local term using either KPP vertical diffusivity (=default)
1763       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1764    
1765    checkpoint55h_post
1766    o add verification test "vermix"
1767    o remove all the *_ioinc flags and replace with the single global
1768      outputTypesInclusive flag
1769    o allow to set a vertical profile of vertical diffusivity for T & S
1770    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1771    o useMNC moved from data.mnc to data.pkg
1772    
1773    checkpoint55g_post
1774    o Renaming carbon AD experiments to comply with testreport conventions
1775    o Updating adjoint of Held-Suarez hs94.1x64x5
1776    o Fixing directives for non-ECCO forward_step, after ECCO directives
1777      have been fixed to avoid recomp. of do_oceanic_phys
1778      Works well for global_ocean.90x40x15,
1779      but recomp. issue remains for carbon
1780    o Updating adjoint output for natl_box_adjoint after
1781      pkg/ecco has been modified (see taga c55d_post)
1782    
1783    checkpoint55f_post
1784    o rename to timeave_init_fixed
1785    
1786    checkpoint55e_post
1787    o some delicate re-shuffle of store directives to avoid one
1788      extra call of do_oceanic_physics
1789      affects ecco_the_main_loop.F, do_oceanic_physics.F
1790      checkpoint_lev1_directives.h
1791    o NB: this may break global_ocean adjoint temporarily,
1792      but it is clear how to fix it. Will do later, need this now.
1793    
1794    checkpoint55d_post
1795    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1796    o ecco_cost_weights is modified to 1x1 runs
1797    o modifs to allow observations to be read in as
1798      single file or yearly files
1799    o enable to read exf forcing fields as either
1800      single file or yearly files (flag useExfYearlyFields)
1801    checkpoint55d_pre
1802    
1803    o switch between 2-level and 3-level checkpointing
1804    o add ability of MNC to write local and "partial" (eg. 2D slices where
1805      the full 3D field is never actually stored) arrays to NetCDF files
1806      with the correct (that is, the complete multi-dimensional) set of
1807      array indicies
1808      - used in mom_vecinv() to write the diagFreq output
1809      - tested (demonstrated) in verification/aim.5l_cs
1810    o further mnc-ification
1811      - add verification/lab_sea to the list with mnc setups
1812      - fix undefined mnc v-names in cd_code
1813      - add kpp to mnc output (both snapshot and timeave)
1814    o non-hydrostatic code
1815      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1816        in calc_gw.F
1817      - defaults to viscAh
1818      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1819        friction or Leith) in non-hydrostatic mode, as long as there is
1820        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1821    o pkg/cost
1822      extend simple cost functions to treat time mean quantities
1823      (T,U,V) via cost_accumulate_state from cost_tile
1824    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1825        be 2 times larger than the minimum size the advection scheme requires.
1826        now get a perfect conservation of salt in advect_cs test-exp (updated)
1827    o GGL90 (Gaspar's TKE mixed layer)
1828      - add horizontal diffusion of TKE, requires exchanges in
1829        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1830        default. In OPA there is no horizontal diffusion of TKE but the
1831        mixing coefficients are computed from a horizontal average of TKE of
1832        6 points or so. I think that diffusion has a little more physical
1833        justification.
1834      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1835        was in vain)
1836      - mask tke-variable in ggl90_init
1837    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1838    o fix biharmonic diffusion on CS-grid.
1839    o more obcs stuff
1840      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1841        for reading boundary values. This routine is called from
1842        obcs_prescribe_read
1843      - updated obcs_check
1844      - changed sponge layer relaxation parameter units for days to seconds
1845      - turned off sponge layer by default
1846      - changed argument list of OBCS_CALC to myTime+deltaTclock
1847      - fixed about 35 bugs in obcs_external_fields_load
1848    
1849    checkpoint55c_post
1850    o obcs stuff
1851      - new runtime flags useOBCSprescribe, useOBCSbalance
1852      - re-arranged obcs_calc
1853      - moved exf_getobcs to obcs_prescibe_read
1854        obcs_prescibe_read is called after ORLANSKI stuff
1855        and independent of it (executable can contain all).
1856      - updated obcs_check
1857      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1858        These may be necessary only if tangential velocities are
1859        prescribed at OB, not sure, needs testing.
1860    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1861      which simplifies the calls and passes the ifc check-bounds test
1862    
1863    checkpoint55b_post
1864    o add a 2D scalar, Z location, exchange_2 routine.
1865    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1866      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1867      affects advect_cs results (for the wrong reason): update output.txt
1868    o use a more standard discretization for biharmonic viscosity ;
1869     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1870      affects results of dome set-up: update output.txt
1871    o fix gad_advection.F (CubedSphere part), back to version 1.23
1872    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1873    
1874    checkpoint55a_post
1875    o merged code to
1876      * prescribe/read time-dependent open boundaries
1877        (works in conjunction with exf, cal)
1878      * sponge layer code for open boundaries
1879      * each boundary N/S/E/W now has its own CPP option
1880        (healthy for the adjoint)
1881    
1882    checkpoint55
1883    o up-to-date adjoint of previous breaks
1884      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1885      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1886      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1887      - carbon: * remove tr1-related adjoint verification
1888                * add ptracer as control variable
1889    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1890      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1891    
1892    checkpoint54f_post
1893    o in verification/carbin/ remove experiment related to
1894      ALLOW_PASSIVE_TRACER (array tr1 etc)
1895      code_ad/ input_ad/ results_ad
1896    
1897    o add two new packages
1898      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1899        + subject to optimization (memory)
1900      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1901        + subject to reordering (many GOTOs in the original code)
1902        + so far opps is called for every (i,j) point, and then operates in
1903          the vertical; one may want to reorder the scheme in order operate in
1904          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1905          fields)
1906    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1907      - all verification tests compile and run with linux_ia32_g77
1908      - defaults are compatible with current input files--nothing
1909        should change if you were not previously using MNC
1910      - MNC output has been added in numerous places (eg. timeave)
1911        but there are still a few writes not yet do-able with MNC
1912        (this is in progress)
1913      - flags now allow for either/or/both use of MDSIO and MNC and
1914        documentation will soon follow
1915      - numerous small formatting cleanups for ProTeX
1916    o add version info (via BUILD_INFO.h) to MNC and stdout
1917    
1918    checkpoint54e_post
1919    o add two new packages
1920      - pp81 (Packanowski and Philander, 1981), Richardson number and
1921        stratification dependent mixing
1922      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1923      - these scheme operate in a similar manner as KPP (without ghat, of
1924        course), however there is only one diffusivity that is used for both
1925        temperature and salinity (and passive tracers)ç
1926    o add offline package
1927    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1928      provided by Stephanie Dutkiewicz
1929    o genmake2: add ability to search for C compilers and cleanup test output
1930      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1931    
1932    checkpoint54d_post
1933    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1934    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1935      leading to additional shift by 5 days each year of integration
1936       (i.e. leading to considerable offset over the years)
1937    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1938    o start with no AB and no initial filtering (staggerTimeStep):
1939      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1940    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1941      (external loading & cpl import/export stay in forward_step.F)
1942    o update coupling interface to work with new staggerTimeStep
1943    o change MDSIO ptracers_pickup.
1944    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1945    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1946    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1947    
1948    checkpoint54c_post
1949    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1950      this affects (truncation error) output.txt of test-exp:
1951       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1952    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1953    o change Qnet to always be the net heat flux, (+upward).
1954      affects (truncation error) output of natl_box exp.: updated
1955    o define the max number of passive tracers in PTRACERS_SIZE.h
1956    o start to test mnc routinely in exp0
1957    o add sea-ice loading (sIceLoad) as a new forcing field.
1958    
1959    checkpoint54b_post
1960    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1961       impressive on Altix and Opteron systems)
1962    o diagnostics can now write NetCDF files through the mnc package
1963    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1964    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1965    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1966      affects (truncation error) output of lab_sea & natl_box exp.: updated
1967    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1968    
1969    checkpoint54a_post
1970    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1971    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1972    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1973    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1974      + internal_wave (shift in writing cg2d_ini_res)
1975    checkpoint54a_pre
1976    
1977    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1978      - modified verification/lab_sea and natl_box_adjoint accordingly
1979    
1980    checkpoint54
1981    checkpoint53g_post
1982    o prepare splitting of thermodynamics: store convect.counter in common block
1983    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1984      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1985    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1986    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1987    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1988    o restore adjointability
1989    
1990    checkpoint53f_post
1991    o modifications that affect AIM experiment results (update output.txt):
1992      - no advection of S at top interface Nr (pkg/generic_advdiff)
1993      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1994    o AIM pkg:
1995      - include stability function into surf.Flux derivative relative to Tsurf
1996      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1997    
1998    checkpoint53e_post
1999    o merged cylindrical coord configuration
2000    o added rotating_tank experiment
2001    checkpoint53e_pre
2002    
2003    checkpoint53d_post
2004    o faulks upgraded: re-generate output.txt that have changed:
2005       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2006    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2007    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2008    o added Sadourny discretization of Coriolis
2009      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2010      - re-enabled use of omega3 (useAbsVorticity)
2011    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2012      vector-invariant equations
2013      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2014    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2015      hopefully without new bugs
2016      - still to do: biharmonic friction for non-hydrostatic w
2017    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2018    o regenerated output for global_ocean_ebm (using -ieee)
2019    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2020      of mom_common/
2021      - simple re-arrangement of instructions within computing loop
2022    checkpoint53d_pre
2023    
2024    checkpoint53c_post
2025    o new version of coupler for AIM+thSIce and Ocean models
2026     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2027     - land: change Evaporation of snow
2028     - aim with thSIce: fix bug in snow-precip.
2029    o changes to calc_gw.F
2030     - bug fix for w^2 term near the bottom boundary
2031     - (hopefully) improve the lateral slip boundary condtions for use with
2032        partial/looped cells
2033      - because the bug fix changes two verification experiments anyway (exp5
2034        and plume on slope), change the lateral boundary condition from half slip
2035        to the value of no_slip_sides
2036    o ebm package wasnt quite up to the parallel task. Fixed that.
2037    o Adjoint of EBM package + verification
2038      * TLM OK
2039      * ADM not sufficient accuracy yet (needs further testing)
2040    
2041    checkpoint53b_post
2042    o Commiting new energy balance model to repository
2043      * package is pkg/ebm
2044      * verif. is verification/global_ocean_ebm
2045      * references are in ebm_driver.F
2046    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2047    C        Global thermohaline circulation. Part I:
2048    C        Sensitivity to atmospheric moisture transport.
2049    C        J. Climate 12(1), 71-82
2050    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2051    C        Global thermohaline circulation. Part II:
2052    C        Sensitivity with interactive transport.
2053    C        J. Climate 12(1), 83-91
2054    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2055    C        Destabilization of the thermohaline circulation
2056    C        by atmospheric eddy transports.
2057    C        J. Climate 7(12), 1870-1882
2058    o Will need long integration testing.
2059    checkpoint53b_pre
2060    
2061    o created pkg/mom_common in preparation for variable viscosity code
2062    o renamed and split ini_mnc_io
2063    o pkg/land: only liquid water can diffuse or run-off
2064    o AIM using land: soil wetness availability account for snow
2065    o added printMapIncludesZeros to EEPARMS namelist
2066    
2067    checkpoint53a_post
2068    o restore TAMC compatiility for exf_constants.h
2069      (no usage of _d in .h)
2070    o Additional storing in KPP in an attempt to fix
2071      TAMC problem with adjoint of KPP code.
2072      (no success...)
2073      Identical code works fine with TAF.
2074    o Fixed verification/natl_box_adjoint experiments.
2075      Initial conditions for Experiments 4 and 5 are now
2076      set to "SEAICE_initialHEFF=0", which is more reasonable,
2077      and hence gives results closer to that of Experiment 2.
2078      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2079    
2080    checkpoint53
2081    o stable checkpoint with up to date adjoint
2082      TLM tests only run for 1st grdchk at the moment. Its unclear if
2083      this is a code problem or a problem with resetting code for g_
2084      variables that is being autogenerated wrong.
2085      Otherwise:
2086       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2087       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2088         are both still in chaos following their security messes.
2089    
2090    checkpoint52n_post
2091    o various build (mostly genmake2) changes including:
2092      - ability to build/run more easily within Cygwin and MacOS X
2093      - more complicated Makefiles with a stronger dependence on Gnu Make
2094    o pkg/seaice modifications
2095      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2096        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2097        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2098      - changed proxy for geostrophic velocity and updated
2099        verification/lab_sea/results/* accordingly
2100      - removed ADI dynamic solver from pkg/seaice
2101      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2102        they caused a segmentation fault under certain circumstances
2103      - removed unused field WATR
2104    o bug fix in exf-package:
2105      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2106         now reflect that.
2107    o small fixes in the cal-package:
2108      - set reference date to first of January for the 'model'-calendar
2109      - failing of cal_CheckDate in cal_FullDate now actually results in a
2110        warning
2111    o small modifications in exf-package to increase flexibility:
2112      - change climtempfreeze from a constant to a runtime parameter that
2113        is specified in data.exf_clim (default = -1.9)
2114      - introduce runtime parameter windstressmax (default = 2.0) that is
2115        specified in data.exf
2116    o fix in pkg/thsice:
2117      - update Evap (Tsf changes) to be consistent with Latent heat flux
2118      - maintain snow precipitation unchanged (even if Tsf >=0).
2119     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2120    
2121    checkpoint52m_post
2122    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2123      this does not change any of the results, because myIter=0 in swfrac always
2124      lead to jwtype=2 (the default anyway), but the call makes little sense
2125      as a default
2126    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2127    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2128      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2129    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2130    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2131    o extending useSingleCpuIO option to work with new exch2 I/O format
2132      - old-style, missing-tile I/O is still accessible by defining CPP
2133        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2134    o monitor package can write to NetCDF files and/or STDOUT
2135    o fix re-definition bug in MNC_GRID_INIT_ALL()
2136    o doc/api_reference added
2137      - a framework for building an API Reference Manual using all
2138        the "protex" comments embedded in the code
2139      - see pkg/generic_advdiff, pkg/mnc for examples
2140    o MNC:
2141      - make myThid the last argument for all subroutines
2142      - new default for the grid files: NO halos
2143      - add useMNC and other run-time flags
2144      - separate per-file-group handling of the unlimited dimension
2145      - early initialization of MNC w/ flags read at the eeboot stage
2146        and lookup tables set in initialize_fixed
2147      - write all MNC output to a freshly-created directory
2148    o thermodynamics sea-ice (thsice) is now tested with testreport.
2149    o test exp. advect_cs: use the standard cs32 grid ; update output.
2150    o Added functionality to grdchk:
2151      pick global i,j,k position (or nearest wet) where to perform check.
2152    
2153    checkpoint52l_post
2154    o new land formulation:
2155      a) use ground enthalpy as prognostic variable to ensure exact
2156         energy conservation.
2157      b) account for water temperature and for latent heat of freezing
2158         in all processes (rain, run-off, ground storage)
2159      c) compute surface and ground temperature implicitly.
2160    o aim_v23 modification for new land model:
2161      a) Treat separately land / ocean / sea-ice surface fluxes
2162         to allow implicit computation of land & sea-ice surface temp.
2163      b) add snow precipitation.
2164    checkpoint52l_pre
2165    
2166    o fix problem (when 1 tile is empty) in min/max monitor.
2167    o fix bug in timeAve (u,vZetatave in common block)
2168    o no restoring terms under ice for pkg/seaice
2169    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2170    o bug fix for pkg/seaice pickups
2171    o change MNC call locations and add coordinate attributes
2172    o mask vorticity at the corner ; affects global_ocean.cs output
2173    o fix ini_curvilinear_grid ; test CS experiments with mpi
2174    o aim.5l_cs: modify sea-ice fraction input file ; update output
2175    o exf: Adding simple range check routine for exf fields after read
2176    
2177    checkpoint52k_post
2178    o removed top-level directory "diags"
2179      - we migrated these functions to pkg/timeave a long time ago
2180    o fixed bug introduced in pkg/monitor
2181    o accuracy ctrlprec = 32 insuffient for gradient checks using
2182      averaged fields (I/O via cost_averages)
2183      -> use ctrl.h in active_file*.F to control I/O precision.
2184    o paramter list of CALL ADTHE_MAIN_LOOP
2185    o added initial do_the_model_io to ecco
2186    o set all ...Freq to zero after cost_final
2187      taveFreq, dumpFreq, pChkptFreq
2188    o MAIN and ECCO differentiability restored
2189    
2190    checkpoint52j_post
2191    o fix nchklev in tamc.h for global_ocean...
2192    o Bringing flow and store directives up-to-date
2193    o Really weird thing!
2194      call do_the_model_io from the_main_loop with parameters
2195      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2196      TAF places a faulty re-call of initialise_varia
2197      after cost_final call which should not be there!
2198    checkpoint52j_pre
2199    
2200    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2201      error messages
2202    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2203    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2204      debug output
2205    o modfied mdsio_writefield.F to handle non-global files under exch2
2206    o update AIM Cubed-Sphere exp (aim.5l_cs):
2207      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2208    o update AIM Equatorial Channel exp:
2209      use standard aim_v23 pkg and change the SST fields to be more realistic.
2210    o globalFile now works with exch2
2211    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2212      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2213    o limit timeave output for hi-res integrations
2214    
2215    checkpoint52i_post
2216    o removed CPP_EEOPTIONS.h from verification/*/code
2217    o updated the tiling for global_ocean_pressure
2218    checkpoint52i_pre
2219    
2220    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2221      the old pkg/aim).
2222    
2223    checkpoint52h_pre
2224    o shortened offending lines in exch2_send_rx?.template
2225    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2226    o genmake2: add build & execute test for NetCDF code
2227    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2228      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2229    o added useSingleCPUIO flag to monitor.F and mon_out.F
2230    o added temporary hack for sea-ice dynamics on the cube:
2231      metric terms are ignored and it is assumed that
2232      there is no sea-ice on cube faces 1, 2, 4, and 5.
2233    
2234    checkpoint52f_post
2235    o added exch2 cube routines to pkg/exch2
2236    o modified hs94.cs-32x32x5 to use it
2237    o added new grid files to hs94.cs-32x32x5
2238    checkpoint52f_pre
2239    
2240    checkpoint52e_post
2241    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2242      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2243    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2244      to work with implicit vertical advection and AB ;
2245    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2246    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2247     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2248    checkpoint52e_pre
2249    
2250    o fix bug in impldiff when Nr=1 or Nr=2.
2251    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2252    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2253    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2254      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2255    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2256    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2257    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2258    
2259    checkpoint52d_post
2260    o re-tiled many expts to allow comparison in multi-processor mode
2261      - updated output accordingly
2262      - changed hs94.128x64x5 to use intial T from file rather than use the
2263        random number generator
2264    o add infrastructure in model routines for fizhi and gridalt packages
2265    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2266    o changes to permit hi-res, cubed-sphere, configuration
2267      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2268      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2269      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2270        of surface winds for the cube
2271      (A verification experiment, based on global_ocean.cs32x15, but with
2272       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2273       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2274       complete with example surface forcing files and matlab scripts to look
2275       at the output and compare it with that of global_ocean.cs32x15.)
2276    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2277       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2278       to conform to the common rule.
2279    o check-in the first version of the coupler + interfaces for multi-components
2280       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2281       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2282       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2283       - ocean and atmos. share the same horizontal grid (no interpolation).
2284       - exchanges between component and coupler is done in forward_step
2285    o new verification experiment, cpl_aim+ocn:
2286       coupled ocean - AIM atmosphere on cs32 grid.
2287    
2288    checkpoint52d_pre
2289    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2290    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2291    
2292    checkpoint52c_post
2293    o Fixing OPTIONS files for use of exf:
2294      - ALLOW_ECCO not needed
2295      - ECCO_CPPOPTIONS.h should not be included from
2296        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2297        as has been the case in the past
2298      - All cal/exf related options are currently set in
2299        single header file. Should remain so until we
2300        agree on a consistent new policy.
2301    o Removed all CPP options for cal package.
2302      cal has no more CPP options.
2303    o modified STOREs in GAD_ADVECTION
2304    o corrected key comp. for passkey
2305    
2306    checkpoint52b_post
2307    o new version: "thsice" of thermodynamic sea-ice pkg:
2308     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2309     - modify fluxes but do not change theta directly;
2310     - light cleaning of bulk_force pkg (still needed with thsice).
2311     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2312       + output_thsice.txt to test thsice & bulk_force pkgs.
2313    o put back grid & coriolis monitor output.
2314    checkpoint52b_pre
2315    
2316    o call "do_the_model_io" at the beginning (=> dump initial state)
2317    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2318    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2319      (need info on NUMBER_OF_PTRACERS)
2320    o missing PTRACERS headers in some routines
2321    o default tamc.h in pkg/autodiff supposed to crash
2322      to ensure proper customization
2323    
2324    checkpoint52a_post
2325    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2326      - moved surfaceTendencyTice from pkg/seaice to main code
2327      - subroutine FREEZE_SURFACE now limits only surface temperature
2328        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2329        => new output.txt for global_ocean.cs32x15 & global_with_exf
2330      - keep the old version of FREEZE for backward compatibility;
2331        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2332      - corresponding modifs for TAF directives
2333    o added surface flux output variables to TIMEAVE_STATVARS
2334    o time-averaged output for pkg/ptracers
2335    o fix problem with ECCO-related divided adjoint
2336      snapshot file was missing some ad-variables,
2337      but no warning issued by TAF
2338    
2339    checkpoint52a_pre
2340    o some bug fixes for #undef REAL4_IS_SLOW
2341    
2342    checkpoint52 = ecco_c52_e35
2343    o after testing adjoints of checkpoint51u_post
2344    
2345    checkpoint51u_post
2346    o this is the post-merge tag of the ecco-branch
2347      (needs another clean checkout and re-testing)
2348    o various natl_box_adjoint configs and results
2349      but no input fields
2350    o obcs adjoint not yet merged!
2351    o adding ECCO global 1x1 and 2x2 degree configs
2352    o updated/extended some store directives for seaice
2353    o pkg/ecco now containes ecco-specific part of cost function
2354    o top level routines the_main_loop, forward_step
2355      supersede those in model/src/
2356      previous input data.cost now in data.ecco
2357      (new namelist ecco_cost_nml)
2358    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2359    
2360    checkpoint51t_post
2361    o this is the pre-merge tag of the ecco-branch
2362    
2363    checkpoint51s_post
2364    o cleanup: removed various obsolete #define-s
2365    o pkg/grdchk
2366      - renamed 'ph-grd 3' to 'grad-res'
2367      - merged from ecco-branch
2368        (remaining bug fixes for obcs gradient checks)
2369      - additional high-precision output for testreport
2370        (grep for 'precision_grdchk_result')
2371    
2372    checkpoint51r_post
2373    o cleaned up or removed CPP_OPTIONS.h files
2374    o updated results for some of the tests to reflect the new
2375      optfiles (-ieee: -O0 instead of -O3)
2376    
2377    checkpoint51q_post
2378    o cd_code:
2379      - moved cd_scheme.F -> cd_code_scheme.F
2380      - separate read_checkpoint from cd_code_ini_vars.F
2381      - separated cd_code part from write_checkpoint
2382      - updated AD_SOURCE, generated .flow
2383      - added CD_CODE_VARS.h to the_main_loop
2384      - Moving cd_code specific store dir.s to pkg/cd_code
2385    o ctrl package totally restructured
2386      - pack/unpack now optional and decoupled from
2387        xx_/adxx_ I/O
2388      - ctrl_pack/unpack cleaned
2389        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2390      - confined inclusion of AD_CONFIG.h to where necessary.
2391    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2392    
2393    checkpoint51p_post
2394    o create initial cd_code package
2395      - WARNING: the initialization of fields within packages
2396        is broken because INI_FIELDS (where READ_CHECKPOINT is
2397        called) is called *before* PACKAGES_INIT_VARIABLES.
2398        This seems to be backwards since
2399        1) its important to initially zero the entire field including
2400           the "halo" region
2401        2) zeroing needs to be done *before* reading pickup info
2402           and the pickup call might or might not happen in any
2403           particular run
2404      - this needs an overhaul for R2
2405    o cleanup verification/*/code/GMREDI_OPTIONS.h
2406    o cleanup testreport
2407    
2408    checkpoint51o_post
2409    o bringing AD-related verif's up to date with genmake2
2410      - carbon/
2411      - global_ocean.90x40x15/
2412      - hs.94.1x64x5/
2413      - (front_relax/ )
2414    o (more) consistent directory structure for AD-related verif.'s
2415    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2416    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2417    o bug fix in find_alpha.F for MDJWF:
2418      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2419        change rho -> rho-rhoConst
2420      - replace call find_rho to find_rhonum
2421    o initialisation of rFlx extended to full array (required by TAF)
2422      and shifted to thermodynamics
2423    o removed PTRACERS.h in ptracers routine
2424    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2425    o Correcting initialisations for fVerU, fVerV.
2426    o helping TAF to recognize dependency on kUp for
2427      fVerU, fVerV
2428    o Replacing delZ by delR in pkg/ctrl/
2429    checkpoint51o_pre
2430    
2431    o undid all of cp51 pending some cleanups and discussion
2432    o added the [#include "AD_CONFIG.h"] statement to all files that need
2433       it for adjoint/tl #defines
2434     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2435     o removed tools/genmake since it no longer works
2436    
2437    checkpoint51n_post
2438    o modifications to make FREEZE flux visible to pkg/kpp
2439      - moved surfaceTendencyTice from pkg/seaice to main code
2440      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2441      - subroutine FREEZE now limits only surface temperature
2442        (this means new output.txt for global_ocean.90x40x15,
2443         global_ocean.cs32x15, and global_with_exf)
2444    o added surface flux output variables to TIMEAVE_STATVARS
2445    
2446    checkpoint51n_pre
2447    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2448    o added [#include "AD_CONFIG.h"] to all files that use the following
2449      defines:
2450      - ALLOW_ADJOINT_RUN
2451      - ALLOW_TANGENTLINEAR_RUN
2452      - ALLOW_ECCO_OPTIMIZATION
2453    
2454    checkpoint51m_post
2455    o incorporating changes to get TAMC/TAF working in genmake2
2456      - added new TAMC/TAF targets to the Makefile
2457      - various cleanups related to package handling
2458      - these changes should have no impact on the forward model
2459    
2460    checkpoint51l_post
2461    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2462     - faster algorithm for cal_addtime.F
2463     - higher precision arithmetic, where needed
2464     - pkg/exf *startdate variables changed from calendar date to
2465       model integration time
2466    
2467    checkpoint51l_pre
2468    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2469    o enable to apply restoring on S & T only in a latitude band.
2470    o update output (external_forcing_surf modif. change truncation errors)
2471       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2472    
2473    checkpoint51k_post
2474    o change default to: useNHMTerms=.FALSE.
2475     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2476       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2477     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2478        exp1, ideal_2D_oce
2479     - change data file of oceanic exp (leave the results unchanged for now)
2480       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2481    o set gravitySign automatically according to the vertical coordinate used
2482      (and change sign: back to "logical" value: +1 when R increases downward)
2483    o added an include barrier to the default CPP_OPTIONS.h and
2484      removed the #include "PACKAGES_CONFIG.h" from it
2485    o fix a bug in mom_fluxform (from chk51j_post)
2486    
2487    checkpoint51j_post
2488    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2489    o adjusted some flow directives (dynamics, thermodynamics)
2490    o added cubed-sphere case to test cost function
2491    o heckpoint_lev?_directives.h now include
2492      pkg-specific directives, whenever those are enabled.
2493    o Moving pkg-specific flow directives to corresponding pkg
2494      Moving pkg-specific differentiation list to corresponding pkg
2495      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2496      ---> conventions are
2497           - pkg_ad.flow
2498           - pkg_ad_diff.list
2499           - pkg_ad_check_lev?_dir.h
2500    
2501    checkpoint51i_post
2502    o merge of the branch-genmake2
2503      - knowingly breaks the older genmake
2504      - automatic generation of all ALLOW_${PKG_NAME} defines
2505      - new testreport supersedes older testscript
2506    o large number of package inclusion and header cleanups
2507    checkpoint51i_pre
2508    
2509    o new output for adjoin of global ocean vector invariant
2510    o fix for checkpoint of thermodynamic seaice and bulk_force
2511    o Steph gchem various cleanups
2512    
2513    checkpoint 51h_pre
2514    o fixed some single quotes
2515    o modify gchem pkg to be more versatile
2516    o modifications to clean up dic pkg
2517    o add pkg/cfc
2518    
2519    checkpoint51g_post
2520    o provide links for ARPACK and ADM*TLM
2521    o start removing verification/vero/
2522    o update AD-related stuff
2523      (in particular some IF-statements in model/src/ routines)
2524    o adding to verification/global_ocean.90x40x15/ adjoint of
2525      vector invariant setup
2526    
2527    checkpoint51f_post
2528    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2529    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2530      of tracer Green's fucntions for ocean inversion project.
2531    
2532    checkpoint51f_pre
2533    o Added on-the-fly spatial interpolation capability
2534        "USE_EXF_INTERPOLATION" to pkg/exf.
2535      - This is a temporary Cartesian-grid hack until
2536        the super-duper ESMF coupler becomes available.
2537      - See verification/global_with_exf/README for usage example.
2538      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2539        flags and modified pkg/seaice accordingly.
2540    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2541        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2542        non-local transport term.
2543    
2544    checkpoint51e_post
2545    o pkg/mom_vecinv:
2546      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2547      - add time-ave diagnostic of vorticity advection.
2548    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2549    o atmospheric geopotential: - include water vapor effect;
2550                                - use p^kappa in p* scaling.
2551    o land pkg: read initial state from files.
2552    o AIM : add stratospheric drag in the upper level
2553    
2554    checkpoint51d_post
2555    o change function ILNBLNK (=> last non-blank char.) to return zero
2556      (instead of the string length) when the string. char is empty
2557    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2558    o modif's to restore TAMC compatibility
2559      - avoid "_d" constructs in PARAMETER declarations
2560      - avoid interrupting lines by comment lines
2561    o Use cluster local disks for purely local I/O
2562      vs. globally visible disks needed for ctrl stuff
2563      (merged from ecco-branch)
2564      - new active_file_loc... and mdsio_..._loc routines
2565      - affected packages: autodiff, ctrl, grdchk, mdsio
2566    
2567    checkpoint51c_post
2568    o introducing integer flag debugLevel
2569      - debLevZero: suppress all output
2570      - debLevA: standard
2571      - debLevB: equivalent to current debugMode=.TRUE.
2572    o introducing pathname variable mdsioLocalDir for mdsio
2573      that can be specified at runtime
2574      (relevant for cluster I/O to local disk)
2575    `
2576    >>>checkpoint51b_post
2577    adjoint of ptracers
2578    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2579    o extended state in checkpoint_lev?, etc.
2580    o alternative ctrl/cost with tr1 or ptracer
2581    o new comlev1_bibj_ptracers
2582    o new ptracers.flow
2583    o made ptracers_forcing same as external_forcing_s
2584    o added verification for adjoint with ptracers
2585      - adm. grdchk fail so far
2586      - tlm. grdchk OK
2587      - checked tapelev/comlev recomputations: OK
2588    <<<checkpoint51b_pre
2589    
2590    checkpoint51a_post
2591    o added code for biogeochemistry package
2592      - new pkgs: dic, gchem
2593      - new subroutine in ptracers
2594    o modify code for biogeo packages
2595      - in model/src and pkg/ptracers
2596    
2597    checkpoint51
2598    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2599      - autodiff, ctrl, exf, grdchk, seaice
2600      kept separate packages
2601      - cost, ecco, obcs
2602    o updating verification/internal_wave, verification/lab_sea
2603      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2604    
2605    checkpoint50i_post
2606    o Preparing next differentiable checkpoint and sync
2607      of MAIN vs. ecco-branch
2608      - 1st step: this one is differentiable
2609      - 2nd step: next(! not this) checkpoint will have updated packages
2610                  from ecco-branch)
2611    
2612    checkpoint50h_post
2613    o new package "land": provide surface BC for AIM.
2614    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2615    o AIM: use true log-P extrapolation for near surface temp (= as in
2616        F.Molteni paper) ; update aim.5l_cs output.
2617    o New variable in PARM03 for more flexible pickups
2618    o somewhat cleaned package initialisation sequence for
2619      ctrl/ cost/ ecco/ in packages_... routines
2620    
2621    checkpoint50g_post
2622    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2623      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2624      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2625        made the default because of faster convergence than ADI
2626    
2627    checkpoint50f_post
2628    o exf totally restructured
2629      - replaced all exf_set_ routines by one generic exf_set_gen.F
2630        and made sure it's still differentiable
2631      - split exf_getffields.F into new exf_bulkformulae.F
2632      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2633      - updated adjoint/makefile and relevant verif. accordingly
2634    
2635    checkpoint50f_pre
2636     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2637          + change Evap over land. (update aim.5l_cs output)
2638     o added missing .cvsignores and made uniform across expts
2639     o changed configuration of tidal_basin_2d expt
2640     o added pkg/debug functions for tracing code in fatal crashes
2641     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2642     o new fn in pkg/monitor to stop model if solution grows too big
2643     o removed lots of single quotes from comments
2644    
2645    checkpoint50e_post
2646    o make KPP work with PTRACERS
2647     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2648       nearly a copy of kpp_transport_s
2649     - there is no analogue to SurfaceTendencyS, so I have to use
2650       gPtr(of the surface layer) instead
2651    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2652    checkpoint50e_pre
2653    
2654    checkpoint50d_post
2655    o change kpp output from multiple-record state files to single-record state
2656      files analogous to write_state.F
2657    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2658      analogous to the cg2d-related output.
2659    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2660      so that writing to internal file fn (with length 512) fails.
2661    checkpoint50d_pre
2662    
2663    checkpoint50c_post
2664    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2665    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2666    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2667    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2668    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2669    
2670    checkpoint50c_pre
2671    Merging from release1_p13:
2672    o bug fix for pkg/seaice dynamic solver
2673    o Added SEAICE_initialHEFF to pkg/seaice
2674    
2675    checkpoint50b_post
2676    o store u*,v* in gU,V instead of in guNm1,gvNm1
2677    o in order to put the momForcing out of the Adams-Bashforth:
2678      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2679      to timestep.F
2680    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2681    o re-generate output for highly sensitive test-exp:
2682       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2683    
2684    checkpoint50b_pre
2685    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2686    o corrected CPP option mismatch in exf_Bulk... functions for case
2687      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2688    
2689    checkpoint50a_post
2690    o Bug fix for merging between c50 and KPP.
2691      ikey was passed from thermodynamics to kpp_calc via
2692      common block rather than being recomputed in kpp_calc,
2693      in contradiction with new key itdkey.
2694      New key ikppkey created, and tamc.h headers updated.
2695    
2696    checkpoint50
2697    - 2nd step of merge with ecco-branch:
2698      merge changes in ecco-branch back into main trunk
2699    - bug fix in find_alpha
2700    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2701    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2702    - merged some sliced AD support routines
2703    
2704    checkpoint49
2705    merged from ecco-branch:
2706    o exf:
2707      - Enable initialisation of forcing fields to constant
2708        (runtime) values.
2709      - in exf_getffields.F
2710        Reduce i-/j-loop to interior domain, discarding overlaps.
2711        That also fixes wrong TAF-key computations for key_1, key_2
2712        with bulf formulae.
2713      - exf_init.F modify #ifdef for exf_init_evap
2714      - exf_getffieldrec.F, ctrl_getrec.F
2715        The following INT-usages are not safe:
2716          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2717          fldcount = int(fldsecs/fldperiod) + 1
2718        and were modified.
2719    o autodiff: checkpoint_lev...
2720      - updated storing for bulk formulae (some arrays were missing)
2721      - added state for seaice package
2722      - synchronized with main branch
2723    o DIVA:
2724      Modif.s in
2725      - the_main_loop.F
2726      - the_model_main.F
2727      and added cost_final_restore.F cost_final_store.F
2728      o With these changes, it is possible to fully separate
2729        the first forward run to compute the cost function (mdthe_main_loop)
2730        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2731        into separate model executions.
2732        This enables better tuning of DIVA to given queue sizes.
2733      o Loss of cost function value in consecutive DIVA runs is
2734        fixed by storing to 'costfinal' file.
2735      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2736        beginning/end of adjoint integration is accounted for.
2737      The current changes apply to TAF-1.4.26.
2738      TAF has one remaining bug, requiring one manual change
2739      (see MITgcm manual).
2740    o cal: synchronized between MAIN and ecco-branch
2741    
2742    checkpoint48i_post
2743    o Changes to restore differentiability of code w.r.t. previous tag
2744      (mostly adding new routines to make list and replacing
2745      pressure by totPhiHyd).
2746    o Updated and merged grdchk package
2747      - has both ADM and TLM checks
2748      - works for single- and multi-proc.
2749      - output cleaned
2750      - worked successfully for parallel DIVA
2751    o genmake:
2752      - Adding -platform=SP4
2753      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2754    o Modif. for DIVA:
2755      ctrl_unpack should not be called in intermediate DIVA interval.
2756      (similar thing would apply for active files such as
2757      tbar, sbar, psbar, which should not be reinitialised;
2758      only relevant for ecco-branch)
2759    
2760    checkpoint48h_post
2761    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2762    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2763    o Added SEAICE_initialHEFF to pkg/seaice
2764    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2765    
2766    checkpoint48g_post
2767    --- EOS:
2768    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2769      store total Potential in totPhyHyd for diagnostics & EOS.
2770    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2771    --- Pressure/geopotential gradient:
2772    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2773    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2774      ( changes results of global_ocean_pressure )
2775    o NLFS + z-coord.: add eta*Rho' contribution.
2776    o accurate phiHyd when using interface-W at the middle between 2 centers
2777     ( changes results of ideal_2D_oce )
2778    o includes r* 2nd term in potential gradient.
2779    
2780    checkpoint48f_post
2781    Merging from release1_p12:
2782    o Modifications for using pkg/exf with pkg/seaice
2783      - improved description of the various forcing configurations
2784      - added basic radiation bulk formulae to pkg/exf
2785      - units/sign fix for evap computation in exf_getffields.F
2786      - updated verification/global_with_exf/results/output.txt
2787    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2788      (SBO) core products, including oceanic mass, center-of-mass,
2789      angular, and bottom pressure (see pkg/sbo/README.sbo).
2790    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2791      to avoid negative values in shallow regions.
2792      - updated verification/natl_box/results/output.txt
2793      - updated verification/lab_sea/results/output.txt
2794    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2795    o Added useSingleCpuIO option (see PARAMS.h).
2796    o Updated useSingleCpuIO option in mdsio_writefield.F to
2797      work with multi-field files, e.g., for single-file pickup.
2798    o pkg/seaice:
2799      - bug fix in growth.F: QNET for no shortwave case
2800      - added HeffFile for specifying initial sea-ice thickness
2801      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2802    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2803      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2804    o pkg/seaice:
2805      - adjoint-friendly modifications
2806      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2807    
2808    checkpoint48e_post
2809    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2810    o dynamics: change definition of computational domain & adapt mom_fluxform
2811      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2812    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2813        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2814        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2815        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2816        inverted_barometer solid-body.cs-32x32x1
2817      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2818    
2819    checkpoint48d_post
2820    o in preparation for r*:
2821     a) use pre-computed gradient of hydrostatic potential:
2822        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2823     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2824        => affects results of glob_oce_pressure (different truncation error)  
2825      update output.txt of ideal_2D_oce & global_ocean_pressure
2826    
2827    checkpoint48d_pre
2828    o in preparation for r*:
2829      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2830      pass the 2 comp. of the grad. as arguments to momentum S/R.
2831      but for the moment, only used if it does not change the results.
2832    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2833    
2834    checkpoint48c_post
2835    Modifications in treatment of initial flux forcing controls
2836    to avoid extra storing of flux fields.
2837    
2838    checkpoint48c_pre
2839    o Added tidal_basin_2d experiment (currently 1D!)
2840    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2841    
2842    checkpoint48b_post
2843    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2844     (modification to pressure gradient not yet implemented)
2845    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2846      (for U & V) that are used for vertical advection of momentum.
2847    
2848    checkpoint48a_post
2849    o In preparation for r*, use temp. array to compute vertical transport
2850       in flux-form momentum pkg. => change results of few test-exp.
2851      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2852                        lab_sea, natl_box & plume_on_slope
2853    
2854    checkpoint48
2855    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2856    
2857  checkpoint47j_post  checkpoint47j_post
2858  o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.  o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2859  o moved adexch from forward_step to addummy_in_stepping  o moved adexch from forward_step to addummy_in_stepping

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