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revision 1.193 by edhill, Thu Oct 23 04:41:40 2003 UTC revision 1.932 by dimitri, Sat Dec 22 17:44:49 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  untagged  o added verification/lab_sea/input.salt_plume
8    o pkg/salt_plume: clean up salt_plume_frac.F to
9      remove redundancy in PlumeMethod 1 and 4
10    o pkg/kpp: added saltplume diagnostics
11    o pkg/obcs and pkg/seaice:
12      - do not set uice and vice to zero when OB*icefile are unspecified
13      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
14      - moved seaice tracer obcs after call to seaice_growth
15    o pkg/salt_plume: added various options for salt plume depth
16      criterion and for vertical distribution of the salt
17    
18    checkpoint59l
19    o pkg/ptracers: new version of ptracers pickup:
20      read meta file and write only fields which are needed to restart.
21      ( same logic as main pickup file ; also using pickupStrictlyMatch )
22    o pkg/seaice:
23      - add timescale for melting due to warm mixed layer as a means of
24        setting SEAICE_availHeatFrac more conveniently
25      - add a CPP-flag/runtime parameter check for flooding algorithm
26      - reformulated availHeat in seaice_growth.F to be independent of AREA
27    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
28      unit changes
29    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
30    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
31      SX vector computer.
32    o pkg/seaice:
33      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
34        seaice forcing fields can now be read only through pkg/exf
35      - removed some unused halos
36    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
37    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
38      or U/VICE from U/VWIND before computing U/VSTRESS
39    
40    checkpoint59k
41    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
42      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
43    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
44      all experiments pass when compile with un-initialised var. checking option.
45    o added pkg/salt_plume
46    o script to test restart (for now, in MITgcm_contrib/jmc_script)
47    o pkg/seaice: new read/write pickup version.
48      read meta file and write only fields which are needed to restart.
49      ( same logic as main pickup file ; also using pickupStrictlyMatch )
50    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
51    o lab_sea.hb87: modify the domain & update output.hb87.txt :
52      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
53      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
54      process. Fixed here by closing the domain at the Northern boundary.
55    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
56    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
57      a set of consecutive levels in/from a 3-D array.
58    o pkg/ptracers:
59      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
60      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
61    
62    checkpoint59j
63    o in pkgs: dic, obcs, offline, rbcs:
64      standard way to compute coeff. for time interpolation between 2 time reccords
65      which retains full precision (& make results less dependent on compiler).
66      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
67    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
68      packages instead of reading ice cover and wind speed separately
69    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
70     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
71      to allow to compile customized code before the update)
72    o cleaning-up:
73      - fix CPP instruction syntax in pkg/obcs
74      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
75        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
76      - fix some threads issue in IO parts.
77    o pkg/dic:
78      - add tons of "_d 0" (--> much better testreports !)
79       and then update outputs of tutorial_global_oce_biogeo
80    o pkg/mom_fluxform:
81      add a special version of momentum advection intended to conserve momentum
82      next to a bathymetry step or a coastline edge. (default = off = #undef)
83    o new read/write pickup version:
84      - for now, only implemented for main (mdsio) pickup file.
85      - write out only what is needed to restart; merge pickup_nh , pickup_ph
86        and main pickup together.
87      - read meta file; read only what is needed to restart; stop if a field
88        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
89        if it make sense (even if the restart is not perfect).
90      - if no meta file, assume that pickup to read corresponds exactly to
91        a pickup that would currently be written.
92      - read pickup written in the old format (until checkpoint59i) if it
93        recognizes an old meta file (no field-list).
94      - add a meta file in exp. which starts from a pickup: 2 cases:
95        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
96         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
97        b) a meta file describing the content of the associated pickup file
98         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
99    o pkg/mdsio & pkg/rw:
100      - new routine to read a meta file ; new set of routine to read
101        Multiple-fields file (with meta file).
102    o added open boundary conditions capability for seaice
103        HSNOW, HSALT, UICE, and VICE
104    
105    checkpoint59i
106    o adjoint:
107      * fix multiDimAdvection adjoint
108        (partial recomputation problem by TAF for fVerT(:,:,kDown)
109        and comlev1 size definition (maxpass vs. max. number of tracers)
110      * verification/global_ocean.90x45x15 adjoint now tests
111        NLFS and multiDimAdvection using DST3 (=30)
112      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
113    o pkg/kpp: add "_d 0" to real constant (if missing);
114      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
115      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
116    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
117      for internal parameters related to restart process (formerly from PARAMS.h)
118      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
119    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
120      as argument. (only atm2d & obcs write_pickup have not yet been updated)
121    o pkg/monitor:
122      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
123      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
124      - account for deep Atmosphere factor and density factor (anelastic)
125    o added open boundary conditions capability for seaice HEFF and AREA
126    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
127      thermodynamics
128      - requires a little reorganization, which affects the testreport results
129        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
130        so that now the conservative form is tested
131      - add a few comments
132    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
133    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
134    o add new diagnostics to seaice: advective, diffusive fluxes (only for
135      multidim-advection, for scheme 2 they are not filled) and transports,
136      thermodynamic growth rates
137    o change units of EmPmR (inside the code, + within coupling interface)
138      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
139      Affects results @ truncation level (cg2d match) and update output of
140       experiments: lab_sea(6), global_ocean.90x40x15(10),
141      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
142      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
143      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
144      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
145    
146    checkpoint59h
147    o pkg/exf:
148      - improve vectorization by moving if-statement out of loops in
149        exf_mapfields, exf_radiation
150      - exf_bulkformulae.F: introduce 2D fields and vectorize code
151    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
152    o testreport:
153      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
154        monitor & update offline_exf_seaice exp. output.
155      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
156    o pkg/seaice:
157      - bug fix in the evp solver: boundary conditions were affected be
158        masking of zMax/zMin (changes results)
159      - minor bug fix in boundary conditions in seaice_calc_strainrates
160        (changes results for no_slip)
161      - seaice_lsr.F: make interpolation of eta dependent on boundaries
162      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
163      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
164        stress formulation and no-slip boundary conditions
165    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
166      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
167    o pkg/seaice: a first HSALT time stepping equation has been checked in
168    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
169      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
170      without requiring DO-IF statements
171    o pkg/thsice:
172      use continuous power-law function for partition of energy between lateral
173      melting/freezing and thinning/thickening ; old code using step function
174      still available with #undef THSICE_FRACEN_POWERLAW
175      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
176    o testreport: change AD testing : check against results/output_adm.txt
177      using same scripts as for forward test.
178    
179    checkpoint59g
180    o adjoint testing: in preparation for changing testreport:
181      - output format: cost and grad written on separated lines
182      - ad output results in directory "results" (instead of "results_ad")
183    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
184    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
185    o pkg/ecco: allow user defined cost function contributions
186    o testreport:
187      Allow to choose (per experiment) the list of tested output variables
188       and the main variable (used to issue a pass/FAIL ) ;
189      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
190      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
191      Also modify printing of summary:
192       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
193       b) echo the list of tested variables in the individual summary.txt of
194          each experiment.
195    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
196      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
197      (but still depend on the tile decompostion of the domain).
198    o pkg/seaice: change a discretization detail to make the B-grid code
199      "more symmetric". This change is likely to remove all "ridges/leads" that
200      where quasi-aligned with the grid in B-grid solutions. It may also be
201      the solution to the stress coupling issues with the B-grid.
202    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
203      remove .cvsignore from input dir. (since testreport no longer run here).
204    o pkg/thsice:
205     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
206     - fix reshaping of sea-ice just after advection:
207       melt all the ice only if ice-volume is too small.
208     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
209       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
210     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
211    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
212      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
213    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
214      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
215      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
216      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
217      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
218      -> update output.txt
219    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
220     this affects truncation error: -> update output.txt of exp:
221      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
222      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
223    
224    checkpoint59f
225    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
226    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
227      a bounded range (in forward mode)
228    o pkg/ecco, ctrl, autodiff and mom_common:
229     internal parameter controls, completements of implementations
230    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
231    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
232      (not seem any difference in testing results).
233    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
234       at face corners.
235    o pkg/generic_advdiff:
236     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
237      loop range indices for computing vertical advection tendency
238      and do the calculation in the interior only (no overlap) ;
239      for now, only implemented for SOM advection (to save CPU time).
240     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
241    o exch2 adjoint
242      First set of changes:
243      - add exch2 hand-written adjoint templates
244      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
245        This will require cleanup in pkg/autodiff/*.F
246        (changed routines currently kept separate in verif. code/)
247      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
248        that used to hide exch2 or cubed-sphere specific code
249        (commented via 'cph-exch2')
250    o pkg/seaice
251      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
252    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
253       output of global_ocean.cs32x15.thsice .
254    
255    checkpoint59e
256    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
257      for B-grid vector (not yet tested) and C-grid vector (<- only used
258      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
259    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
260      (#ifdef ALLOW_SALT_PLUME)
261    o gather_2d/scatter_2d: removed halo regions
262    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
263      scheme and the corresponding test case (under front_relax dir). For now,
264      only available with Skew-flux form and not yet tested in realistic set-up.
265      adjoint: store directives updated, but gradient checks deteriorated,
266      so maybe GM/Redi adjoint is now broken.
267    o seaice adjoint
268      * add AREA, HEFF, HSNOW as control variable
269        (should not change lab_sea results)
270      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
271    o pkg/seaice:
272      * added computation of saltFlux in seaice_growth;
273        For time being, sea ice salinity is assumed constant
274        contribution of snow flooding to freshening of sea ice is neglected.
275        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
276        defaults to 0.0 in order to maintain backward compatibility.
277        Typical values for SEAICE_salinity are 4 to 10 g/kg.
278      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
279      * added SEAICE_availHeatFrac, which specifies fraction of surface level
280        heat content used to melt or grow ice
281      * commented out cap of HICE: it helps keep ice thinner
282      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
283      * applied OBCS T/S mask to HEFFM sea ice mask
284    
285    checkpoint59d
286    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
287     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
288     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
289    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
290     and change default value of parameter "GM_Small_Number";
291     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
292       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
293       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
294    o pkg/ecco: cost function when applying pkg/smooth to controls
295    o pkg/ctrl: add forcingPrecond run time parameter
296    o pkg/seaice:
297     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
298     - fix bug in metric terms of u-equation in LSR solver (implicit part),
299       changes verification/lab_sea
300     - rearrange implicit part of u-equation in LSR solver to make it easier to
301       read, understand, and debug. This causes changes at the truncation level.
302     - fix (serious) bug in the boundary conditions (sign error in the implicit
303       part) of the LSR solver. Changes all LSR results.
304     - fixed problem with HSNOW initialization to avoid thick snow when AREA
305       is initilized with small values - does not change lab_sea results.
306     - added HsnowFile initialization capability
307    o pkg/smooth: addition to model/src and pkg/ctrl so allow
308     initialization of pkg/smooth and application to control vector
309    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
310    o dependencies: pkg/profiles requires pkg/cal
311    o pkg/profiles:
312     - added option ALLOW_PROFILES_GENERICGRID
313         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
314         that interpolation information (grid points and coefficients) is provided
315         within the netcdf input files.
316         -> sample matlab scripts can be found in MITgcm_contrib/gael
317         that allow you to prepare netcdf input files.
318     - also modified: cleaner include statements, cleaner error print statements,
319       cleaner stops when error, and more tests of the netcdf input files consistency.
320    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
321    o pkg/seaice:
322     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
323       requires a new routine: seaice_diagnostics_fill.F
324     - make sure that seaice does not move if not forced (pressure replacement
325       method, Hibler and Ip, 1995), changes results
326     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
327     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
328       It is turned off by default (=-1.), because it changes the results.
329     - make it possible to read AREA from a file, too.
330    
331    checkpoint59c
332    o add S/R and diagnostics for oceanic mixed-layer depth
333    o move GMRedi call after all vertical mixing schemes (including KPP)
334    o pkg/thsice:
335     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
336      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
337    o pkg/obcs:
338     - bug fix for balance code
339    o pkg/seaice:
340      - allow values of SEAICE_elasticParm > 1
341      - add new parameter SEAICE_evpTauRelax as an alternative
342        to SEAICE_elasticParm
343      - make lsr boundary conditions free slip (by default), changes result
344      - add code for no slip boundary conditions for lsr
345      - set minimum of zeta to zero (and not 4e8) (changes results)
346      - add a cap on AREA after advecting AREA if seaice_growth is not called
347    o change calculation of Visbeck K:
348      - no longer depend on tapering scheme; instead, compute slope (limited
349        by GM_maxSlope). this is equivalent to what was comuted before with
350        clipping or linear tappering.
351      - fix vertical averaging (wrong by 1/2 level)
352      - leave the old version (but will not be maintained) within
353        #ifdef OLD_VISBECK_CALC / #endif
354      - update output of exp. ideal_2D_oce
355    o change error catch in calc_r_star to improve vectorization
356    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
357      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
358    o adjoint:
359      Re-organized adjoint checkpointing according to Matt Mazloff
360      (but with modifs/completions/cleanups)
361      Storing is now bundled into large arrays to optimized I/O
362      (and second step in cleanup of the_main_loop)
363    
364    checkpoint59b
365    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
366      - export/import (between ocean & coupler) fields needed for ocean DIC.
367    o pkg/seaice:
368      - get rid of three more exchanges seaice_calc_viscosities (required
369        different loop boundaries in seaice_lsr and seaice_ocean_stress)
370      - bug fix in seaice_ocean_stress (update of lab_sea required)
371      - reduce loop boundaries to necessary minimum also in seaice_evp
372      - go back to the old way of computing deltaC/Z as the adjoint likes that
373        better
374    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
375      passive tracer to an Age Tracer) + update output.txt
376    o pkg/exf:
377      - implement A-grid / C-grid selection for wind-stress input files.
378      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
379      for now, in exf_bulk_largeyeager04.F only :
380      - change implementation for case where windspeed + 2. components wind-stress
381        are read-in. AND use rhoConstFresh to convert evap.
382    o pkg/seaice:
383      - use correct EXCH_UV for wind-forcing (on A-grid).
384      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
385        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
386    o pkg/exf:
387      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
388      EXF_INTERPOLATION:
389      - merge global_with_exf/code version of exf_interp_read.F
390        to the main code ;
391      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
392        reading the file ; Important: This options needs to be defined to recover
393        previous code.
394        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
395      - no longer loose real*8 precision along the way when using exf_iprec=64.
396    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
397      - change discretisation of evp-solver in order to avoid another exchange
398        (changes lab_sea) and clean up a little
399      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
400        help the adjoint (this also changes the results slightly)
401      - add a few "_d 0" where they had been missing in seaice_evp.F
402      - cleaning up: remove unused seaice_calc_rhs.F
403    o pkg/exf: some cleaning-up:
404      - change various "constants" into runtime parameters
405      - cleaned-up Large&Yeager04 routine which should eventually
406        replace exf_bulkformulae.F (changed names of S/R and CPP)
407        and merged various ALLOW_ATM_WIND options
408     only used with thsice pkg (in thsice_get_exf.F):
409      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
410        which are used when useStabilityFct_overIce=TRUE (= the default)
411      - change default values of ice & snow emissivity and scale downward LW
412        by ice & snow emissivity.
413    o pkg/thsice:
414     fix few little problems, in thsice_calc_thickn.F:
415      - growth vertically (and not laterally) if iceFrac == iceMaskMax
416      - melt only laterally if hIce < hThinIce (as the comments say)
417      and in thsice_extend.F:
418      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
419      - start to form ice as soon as the minimum ice-volume is reachable.
420     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
421      and cpl_aim+ocn
422    o pkg/kpp
423     - move computation of surface related input fields to KPP into a new
424       subroutine kpp_forcing_surf.F
425     - remove wrong (within bi,bj loops) EXCH calls.
426     - little cleaning (add argument myThid in last position, cvs header ...)
427     - for now, fix conservation problem by exchanging KPPviscAz (may not
428       be the best fix)
429    o pkg/seaice
430     - check for inconsistent evp parameter/cpp-flag combination
431     - remove leftover errIO flat for obsolete name list error handling
432    o OpenAD
433     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
434    
435    checkpoint59a
436    o pkg/seaice: some parameter clarifications and a little bit of clean up
437    o pkg/thsice: rename run-time parameters:
438       himin       -> hIceMin
439       himin0      -> hThinIce
440       hihig       -> hThickIce
441       i0          -> i0swFrac
442       transCoef   -> bMeltCoef
443       frac_energy -> fracMelting
444      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
445       with default values (for now) that do not change the results.
446      remove old version of thsice vars advection in pkg/seaice.
447    o in FFIELDS.h:
448      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
449      - make pLoad & sIceLoad always available (but still only used if
450         ATMOSPHERIC_LOADING is #define).
451    o pkg/kpp: replaced _KPP_RL with _RL
452    o bug fixes for vertical diffusivity computations when both KPP and
453        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
454        are no longer updating the vertical diffusivity array
455        (passed as argument) but are (re-) setting those arrays.
456    o pkg/seaice: fix bug in evp solver, while doing that
457      - change (improve?) discretization of stress computations for both
458        cgrid-lsr and evp solver
459      - add a new routine to compute strain rates
460      - the above changes lab_sea results
461      - add no slip conditions for evp solver (off by default), lsr-version
462        may follow
463      - fix exchange for shear at Z-points (does not change lab_sea)
464      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
465        (to force the user to pick a time step since there is not "safe" way
466        of choosing it)
467      - add principal stress diagnostics
468      - rearrange fields for evp a little to avoid having to call a: too many
469        exchanges and b: exchanges for stress trensor components which we do
470        not have.
471      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
472        of evp, complete rewrite for lsr case (latter is does not yet work
473        in all cases)
474    o pkg/kpp: add code to have mixing in shelf ice caverns
475      - add myThid to all kpp routines (long overdue)
476    
477    checkpoint59
478    o pkg/exf:
479      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
480        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
481      - move exf header files from lower_case.h to UPPER_CASE.h ;
482        add missing cvs Header & Name
483      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
484      - add namelist param. selectStressGridPosition, exf_monFreq
485      - retire many _CLIM routines, and remove data.exf_clim
486        + params moved to data.exf
487        + climsst, climsss now handled by exf_set_gen, i.e.
488          climss?period=0 refers to constant field,
489          climss?period=-12 to monthly forcing
490      - split up namelists in data.exf
491    o pkg/seaice:
492      - remove seaice_exch and seaice_exch_uv
493      - remove superfluous exchange of theta
494      - add myThid to seaice_budget_ocean/ice
495      - add new interface for atmospheric wind forcing (C-grid only)
496        + new routine
497        + two new field (taux, tauy for stress over ice)
498        + removed one global field (DAIRN) for C-grid case only
499    o pkg/thsise
500      - 2nd set of modifs for thsice adjoint in conjunction with exf
501    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
502    
503    checkpoint58y_post
504    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
505      vertical diffusivity, similar to that in MOM4; turned on using
506      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
507      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
508    o Added capability for 3D specification of background vertical diffusion
509      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
510      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
511      "data" file that contains the 3D vertical diffusivity coefficients.
512    o ice dynamics (pkg/seaice) with thsice thermodynamics:
513      - add code within pkg thsice to advect & diffuse sea-ice fields
514      similar to (and will replace) what has been added in  seaice_advdiff.F,
515      but: - conserving Mass, Heat & Salt.
516           - better when using non-linear advection scheme (not yet fully tested)
517           - can also be used in atmospheric set-up (for now, only the diffusion).
518    
519    checkpoint58x_post
520    o IO option for global-file compact format:
521      - add options when generating topology (utils/exch2/matlab-topology-generator)
522      - add I/O capability (pkg/mdsio).
523      - adapt utils/matlab/rdmds.m to read this format.
524      for now long-line format not yet supported by pkg/mdsio (& exch2).
525    o shelfice: add a few diagnostics
526    
527    checkpoint58w_post
528    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
529      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
530      (and replace horiVertRatio in NH code).
531      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
532                         and tutorial_plume_on_slope (sensitive to truncation)
533    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
534      directly to drive seaice model (C-grid only)
535    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
536     - reintroduce computation of wind from stress,
537     - compute tau (in exf_bulkformulae.F) from windstress averaged to
538       mass points to avoid tau = 0
539     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
540    o rdmnc.m: make it work with "global" files created with gluemnc
541    o rdmnc.m : some improvements in dealing with singleton dimension
542      (tested on all testreport mnc output files).
543    o genmake2: disable pkg/profiles if netcdf test fails.
544    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
545    o move call to cal_readparms up to make calendar parameters/variable available
546      to all packages
547    
548    checkpoint58v_post
549    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
550      useDynP_inEos_Zc tested.
551    o pkg/exf: changes to properly interpolate/mask/scale initial fields
552    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
553      and portions thereof.  See read_cs.txt for description and examples.
554    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
555      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
556      following the great-circle arc between those 2 points.
557    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
558      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
559    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
560     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
561     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
562     - still needs work (not working with some options ; efficiency to improve)
563       and serious testing.
564     - use this scheme for temperature & salinity in 2 advection test exp.:
565       advect_xy & advect_xz, respectively.
566    
567    checkpoint58u_post
568    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
569    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
570    o testreport: add option "-skipdir" to skip some test.
571    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
572      momentum calculation.
573    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
574    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
575      remove checkpoint.F and the_correction_step.F (no longer used);
576      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
577    o add option (linFSConserveTr) to correct for tracer source/sink due to
578      Linear Free surface
579    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
580    o pkg/thsice: fix reading mnc-pickups
581    
582    checkpoint58t_post
583    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
584    o pkg/mdsio:
585     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
586       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
587       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
588     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
589     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
590       either MDS_READ_FIELD or MDS_WRITE_FIELD )
591     - new S/R (to replace MDSWRITEMETA), which allows to write more
592       informations (variable names, time ...) to meta files.
593     - modify rdmds.m to give back the meta file content.
594    o pkg/diagnostics: change vertical interpolation to be safer, and more
595       flexible (define p-levels to interpolate to in data.diagnostics);
596      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
597       diagnostic pointer.
598    o pkg/seaice: more cleaning up of seaice_growth, added many comments
599    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
600    o fix multi-category seaice:
601     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
602       SEAICE_MULTICATEGORY
603     - fix short wave heat flux
604    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
605       and allow to use EVP solver. Change forward lab_sea: test both EVP
606       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
607    o Initial check-in of lab_sea adjoint
608      (very similar to natl_box_adjoint/code_seaice)
609      * used C-grid and EVP solver
610      * used KPP, GM/Redi
611      * uses inAdExact=.TRUE.
612      * gradient checks fail for both ADM and TLM
613        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
614        f.d. gradients actually seem more problematic than ADM, TLM gradients;
615        issue is related to forward mismatch between g77 an ifort
616    o pkg/seaice: overhaul of thermodynamics
617     - growth.F and groatb.F are replaced by new routine seaice_growth.F
618     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
619     - move a few global fields out of SEAICE.h into seaice_growth.F and
620       make them 2D (FICE/QNETO/ ...)
621     - remove FO (it is the same as QNETO)
622     - introduce a few local fields to avoid modifying external fields such
623       as atemp, etc.
624    
625    checkpoint58s_post
626    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
627      changed exf_set_gen.F so that
628        genperiod=0 means input file is one time-constant field and
629        genperiod=-12 means input file contains 12 monthly means
630    o CG2D: use pre-computed solver main-diagonal (stored in common block);
631      this affects truncation error ; generate new output file for exp. which
632      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
633        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
634        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
635        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
636        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
637        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
638    o start implementation of deep-atmosphere and anelastic formulation
639    o verification: remove 2nd copy of input files and use script "prepare_run"
640      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
641    o mom_common/vecinv/fluxform: fix a few initialisation isssues
642    o profiles: fix for multithreaded case
643    
644    o diagnostics: rename few diags:
645      s/'PRESSURE'/'RCENTER '/g
646      s/'TICE    '/'oceFreez'/g
647      s/'TAUX    '/'oceTAUX '/g
648      s/'TAUY    '/'oceTAUY '/g
649      s/'SWFLUX  '/'oceQsw  '/g
650      s/DIFx/DFxE/g
651      s/DIFy/DFyE/g
652      and add few ocean-forcing diagnostics:
653      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
654    o modifications to pkg/seaice/growth.F and budget.F, which change results of
655      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
656      as actual snow thickness.  It now refers everywhere to effective snow
657      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
658    
659    checkpoint58r_post
660    o modifications to pkg/seaice/growth.F, which change results of
661      lab_sea experiment: fixes pertain to melting snow over open water, to
662      masking EVAP under sea ice, and to using the correct AREA variable for
663      computations of EVAP, PRECIP, HSNOW, and GHEFF
664    o add ability to read bathy, salt, and theta using MNC (off by def)
665    o add flooding algorithm and advection of HSNOW for pkg/seaice;
666      both are turned off by default and do no change any results
667    o seaice advection with pkg/thsice: a step toward the use of non-linear
668      advection scheme, but #ifdef or commented out for now (requires more EXCH).
669    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
670      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
671      in natl_box (affects results @ truncation level: update output.txt)
672    o multi-threading and IO:
673      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
674      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
675        (needed to work with SingleCpuIO): tested in all verif. exp.
676    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
677      affects the results (but none of the verification test uses this scheme).
678    o Adding some pkg/diagnostics capability to pkg/seaice
679      (will certainly be subject to changes)
680    o ctrl: adding new control variables:
681      lwflux, lwdown, evap, snowprecip, apressure, runoff
682    
683    checkpoint58q_post
684    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
685      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
686      high_res_cube configuration by 4% on Columbia.
687    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
688      add (in global_with_exf/code) a version of EXF_INTERP_READ without
689      dynamical allocation (seems to work in multi-threaded).
690    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
691      single CPU io) so that TAF does not have to see EESUPPORT.h
692    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
693    
694    checkpoint58p_post
695    o obcs: stop if obcs is used with useCDscheme = .true.
696    o shelfice:
697     - fix a sign error so that no slip at shelfice interface works
698     - remove stop for combination non-hydrostatic code and shelfice. That does
699       not mean, that the results are correct, but at least they are numerically
700       stable
701    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
702    o added adjoint exch routined for all exch*3d* routines
703      and updated flow directives
704    
705    checkpoint58o_post
706    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
707      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
708    o change controling S/R for writing pickup file (new S/R do_write_pickup)
709      and clean-up reading/writing of pickup files.
710    o fix local version of read/write pickup (NH part) in rotating_tank/code
711    o simplify EXCH interface:
712     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
713     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
714    o added the regrid package
715    o shelfice:
716     - add a simple boundary layer scheme to reduce noise
717     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
718    
719    checkpoint58n_post
720    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
721       local variable (not in common block).
722    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
723      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
724      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
725        to work with SingleCpuIO.
726    o add "_d 0" to real constant of pkg/cfc subroutines ;
727       update exp. cfc_exemple & tutorial_cfc_offline output files.
728    o multi-threading and IO:
729      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
730        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
731      - barrier before and after reading.
732      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
733      - avoid using MDS_WRITELOCAL for LAND pkg output.
734      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
735        common-block variables ; Allows multi-threading with master-thread IO.
736    o change default MAX_NO_THREADS from 32 to 4 ;
737      and stop cleanly when MAX_NO_THREADS is too small.
738    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
739    
740    checkpoint58m_post
741    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
742       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
743    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
744       keep global_ocean.90x40x15 (for AD testing) with former secondary test
745       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
746    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
747        add MITgcm_tutorials (= code + all the tutorials)
748    o ecco, option to compute cost for total ssh (mean+anom)
749    o consistent with addition of ptracer and ssh in pkg/profiles
750    o profiles: adding ptracer and ssh
751    o testreport: change multi-test output-file name
752      (from output.txt.{name} to output.{name}.txt)
753    o profiles: now ok for mutli-tiles case
754    o seaice: add 4 parameters for different advection schemes for area,
755      (effective) seaice thickness, enthalphy, and snow height. Their default
756      is the standard parameter SEAICEadvScheme
757    o calc_gw:
758     - add cosFacU in zonal viscous flux (harmonic.visc.).
759     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
760       of tutorial_plume_on_slope.
761    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
762    o calc_gw: true flux-form, account for horizontal grid spacing.
763      update rotating_tank results, but not plume_on_slope (affected at
764      truncation level, 11 digits).
765    
766    checkpoint58l_post
767    o calc_gw:
768     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
769     - remove side-drag for now (need to fix it); update plume_on_slope results.
770     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
771    o commit code to make SST/SSS weights spatially variable
772      (based on either variable in-situ or variable initial T/S weights)
773    o pkg/ecco:
774      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
775        now based on horizontally varying weights wthetaLev, wsaltLev
776      * cost_averagesflags now returns year indices in addition to day, month
777      * sflux balance is performed on annual basis
778        (sflxumm, sfluxmm2, bal_sfluxmm)
779      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
780        including separate counting and multipliers
781    o pkg/rbcs
782      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
783    
784    checkpoint58k_post
785    o testreport:
786     - always build in dir. "build" (if not there, mkdir build instead of building
787       & running in input)
788     - run in dir run (if it exists), in build otherwise.
789     - call prepare_run (if input/prepare_run exists)
790     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
791    o pkg/exf modifications to interpolation and rotation routines for more
792       reasonable treatment of North Pole singularity: for tracers North Pole
793       value is set to northernmost zonal-mean value, for zonal velocity it is
794       set to zero, and for meridional velocity it is set to northernmost value.
795    o pkg/exf/exf_check_range.F
796     - add tile index to diagnostics and move stop statement to the very
797       end of the routine.
798    o pkg/diagnostics: (diagnostics_main_init.F)
799      define title of isomorphic variables according to the current config.
800    o pkg/thsice with pkg/seaice dynamics:
801    - fix domain of computation (interior only, required for exf) and do exchanges
802    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
803    o towards a standard way of dealing with multi-threading in MONITOR
804      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
805    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
806       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
807    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
808    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
809    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
810       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
811    o tracer advection:
812     - clean-up and simplify calc_common_factors.F
813     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
814       advection subroutine (but still not used within DST advection S/R)
815    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
816    
817    checkpoint58j_post
818    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
819      from file (collects calls previously in FORWARD_STEP)
820    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
821    o adjoint store dir. adjusted accordingly
822    o genmake2
823      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
824    
825    checkpoint58i_post
826    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
827      on wind stress (SEAICEstressFactor defaults to 1.)
828    o Total number of Timers is finite (<=40): comment out 2 non-essential one
829      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
830    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
831      on CS-grid: no longer loosing mass.
832    o exf & curvilinear-grid: no longer modify longitude xC & xG.
833    o pkg/ggl90: fix sloppy output and fix a bug
834    o pkg/seaice: added SEAICEuseEVPpickup parameter
835      - Set to false in order to start EVP solver with
836        non-EVP pickup files when using SEAICEuseEVP
837      - fix sign error in diffusion in seaice_calc_rhs
838    
839    checkpoint58h_post
840    * Modifications for bottom topography control
841      o replace hFacC by _hFacC at various places
842      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
843      o add non-self-adjoint cg2d_nsa
844      o update autodiff support routines
845      o re-initialise hfac after ctrl_depth_ini
846      o works for 5x5 box, doesnt work for global_ocean.90x40x15
847    * Adding verification for 5x5 box (4-layer) bottom topography control
848    
849    checkpoint58g_post
850    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
851       used for mean seasonal cycle, mean diurnal cycle); add an example
852       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
853    o pkg/ggl90:
854      - add parameter (minimum surface kinetic energy)
855      - fix bug (avoiding division by zero)
856    o couple pkg/thsice to pkg/seaice:
857      - modify advection in seaice to accomodate new scalar fields to be advected
858      - only muliDimAdection scheme work with seaice/thsice
859      - mapping of thsice-variables to seaice-variables, back and forth
860      - does not break the verification experiments, but does not give the
861        desired results either
862    o pkg/seaice
863      - make (default) second order advection a bit less confusing?
864    
865    checkpoint58f_post
866    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
867      to pkg/seaice):
868      - new routines thsice_map_exf and thsice_get_exf provide the interface
869      - add an additional formal parameter to thsice_solve4temp
870    o pkg/exf:
871      - add new fields wspeed, snowprecip (to be able to couple to thsice)
872      - correct Stefan-Boltzmann constant
873      - new parameter for longwave surface emittance
874      - separate some stuff from exf_bulkformulae into new routines  
875        exf_radiation, exf_wind
876      - add new parameters and constants: longwave emissivity for ocean, ice
877        and snow, evaporation parameters over ice
878      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
879        either wind from stress or stress from wind
880    o pkg/thSIce:
881    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
882    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
883       and THSICE_CALC_THICKN
884    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
885    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
886      to make debugging easier.
887    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
888    o pkg/bulk_force:
889      - clean-up comments and parameters ;
890      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
891    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
892      generate new output for test-experiment: aim.5l_cs.thSI
893    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
894      testreport accordingly
895    
896    checkpoint58e_post
897    o SEAICE_CGRID adjoint done
898    o R_STAR adjoint implemented.
899      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
900      * need to sort out init. of h0facc, etc.
901    o Make pkg/profile fully independent of ecco,cost, etc. stuff
902      to be able to use it in pure forward.
903    
904    checkpoint58d_post
905    o upgrade simple test-experiment to tutorial example:
906     step.1: duplicate the experiment and (step.2) will remove the old copy.
907      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
908      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
909      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
910      tutorial_global_oce_biogeo    <- copy of dic_example
911      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
912      tutorial_plume_on_slope       <- copy of plume_on_slope
913      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
914      tutorial_global_oce_optim     <- empty for now (David ?)
915      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
916     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
917    o correct a sign problem in cost_scat.F
918    o obcs and ptracers: fix boundary conditions for advections schemes
919      with larger stencil
920    o thsice adjoint: start
921    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
922      completeness
923    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
924      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
925    o ptracers adjoint:
926      * avoid extensive recomputatations
927      * fix missing re-init. of gptr (missed by TAF)
928    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
929      me to turn off the excessive output to STDOUT that this package produces
930    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
931      and add those terms in Vector-Invariant formulation.
932    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
933      if the control period (xx_hfluxperiod etc) is 0
934    o in profiles pkg, clean routines and fix details
935    o in ecco pkg, reading ssh data:
936      fix problem in case the model does not start at iter0=0
937    o fix mnc-pickup/restart for ptracers
938    o new package prifiles:
939      code to compute profile-based cost by Gael Forget
940      (modifs in ecco, ctrl, autodiff)
941    o Benign bug fix in initialization (spotted by M. Mazloff) of
942      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
943    
944    checkpoint58c_post
945    o adjoint: finish NLFS adjoint and provide reference output in
946      verification/global_ocean.90x40x15/results_ad_nlfs
947    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
948      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
949      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
950      with SEAICE_CGRID defined.
951    o move calendarDumps from "data" to "data.cal" and clean-up the code
952      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
953    o add useEXF & useCAL flags (for now, set in hard-coded way)
954    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
955      (were missing in NH mode, and wrong in quasihydrostatic mode).
956      waiting for Chris updated version of calc_gw to add those CALLs.
957    o fix bug in quasihydrostatic S/R ;
958      add a test for this option: global_ocean.90x40x15.qshyd
959    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
960      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
961    o add on/off flag useOffLine for package OFFLINE
962    o seaice:
963      - modify advection so that it works also on the C-grid
964      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
965        problem in multi-tile runs with C-grid
966      - add flags for clipping ice velocities and/or masking solver forcing
967      - fix drag (ocean on ice) formulation and a bug that caused noise in the
968        C-grid solver
969      - added a few comments to seaice_diffusion.F
970      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
971        are now exclusive)
972      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
973        required re-ordering the code a little:
974       + make DAIRN global variable (defined in SEAICE)
975       + move computation of the viscosities eta and zeta into a new separate
976         routine (because I need to recompute them in seaice_ocean_stress.F)
977    
978    checkpoint58b_post
979    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
980      update output.txt of exp. aim.5l_cs.thSI
981    o various mnc cleanups and improvements:
982      + shrink lookup tables by factor of ~4
983      + better error reporting when running out of lookup space
984      + able to handle longer path/file names (up to 500 chars)
985    o adjoint:
986      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
987      - TBD: "hidden" mom_vecinv recomp. in dynamics
988    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
989     (allow to differentiate between forcing components using new integer flags:
990      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
991     and add new flag to put Dissipation tendency out of Adams-Bashforth.
992    o ecco
993      - enable trend removal from SSH anomaly obs.
994    o adjoint
995      - a fix for PmEpR when #undef EXACT_CONSERV
996      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
997      - try to fix "hidden" recomp. in forward_step for NLFS
998        (NLFS seems broken sometimes after I checked it in)
999    o seaice:
1000     - add c-grid version of the dynamic solver:
1001       + three new routines that are the c-grid substitute lsr, dynsolver
1002         and ostres
1003       + put a few fields that were local to dynsolver into global common
1004         blocks, so that I can move the computation of stresses etc into
1005         seaice_lsr (saves coding but may break the adjoint).
1006     - replace more hardwired parameters by runtime parameters
1007     - add ice masks that mask the rhs of the implicit solvers where there
1008       is no ice (commented out in seaice_dynsolver, because i am not sure
1009       if this works properly), eventually this should replace the clipping
1010       of ice velocities in seaice_dynsolver to +/-40cm/s.
1011    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1012      include it only where its needed
1013    o move balancing of fluxes before the call of external_forcing_surf
1014    o seaice:
1015      - correct units of turning angles (now they are really in degrees)
1016      - move computation of GWATX/Y out of main routine into dynsolver
1017      - initialize GWATX/Y in seaice_init
1018    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1019      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1020    o seaice: add runtime flags for turning angles (default to zero)
1021    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1022      and trend from exf forcing and ctrl control adjustments
1023    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1024      (since checkpoint57x_post)
1025    o change the default rotation period to 86164.s = the Earth rotation
1026    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1027      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1028    o seaice advection: add code for choosing between the default (2nd order
1029      central differences) and multiDim advection schemes provided by
1030      pkg/generic_advdiff
1031    o seaice:
1032      - removed all references to SEAICE_GRID.h fields from
1033        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1034        (cubed-sphere configuration will change a little)
1035      - grid computations in seaice_init are obsolete now.
1036      - cleaned up code a little so that is easier to read (hopefully).
1037      - added new (better?) discretizations of default advection and diffusion
1038        (turn on with SEAICEuseFluxForm)
1039      - replace 1 in 3d global fields by kSurface in growth.F
1040      
1041    checkpoint58a_post
1042    o seaice:
1043      - bug fix in advect.F
1044    o shelfice:
1045      - separate shelfice load anomaly from pload (breaks with time
1046        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1047        Its default is 0., but it may be computed more cleverly from (unknown)
1048        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1049        done offline. A good approximation of the pressure load anomaly is
1050        necessary to avoid large initial adjustment processes underneath
1051        deep-reaching shelfice.
1052      - small fix in ISOMIP shelfice_thermodynamics
1053      - add more sophisticated thermodynamics of Hellmer (1989), this is
1054        now the default
1055      - give a few constants more intuitive names
1056    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1057      if bulk formulae are used in long integration (especially EmPmR). Turn
1058      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1059      if balancePrintMean, the imbalance that is substracted is printed to
1060      STDOUT.
1061    o fix bug (typo) in obcs_apply_eta.F
1062    o add a new package shelfice which enables us to model the circulation
1063      underneath shelf-ice with draughts of hundreds of meters.
1064     - works
1065     - to do: + include improved thermodynamics
1066              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1067                instead of new field kTopC
1068              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1069                instead of new field R_shelfIce and new code in ini_depth.F
1070                and ini_mask_etc.F?
1071              + adjust vertical mixing schemes?
1072    o seaice pkg:
1073     - add a cpp-flag to include a simple formula for a salinity dependent
1074       freezing point of sea water at the surface
1075     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1076       meridional stresses are now different (and hopefully correct)
1077    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1078       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1079       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1080    o pkg/diagnostics: add options and parameters for regional-statistics
1081       diagnostics ; define regions by reading a region-mask from a file
1082       (might add other options later)
1083    o pkg/bulk_force:
1084     - add option and parameters to use AIM surface-flux formulae.
1085     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1086       others forcing fields (defined in PARM05, parameter file "data") are loaded
1087       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1088     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1089     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1090     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1091       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1092     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1093    
1094    checkpoint58
1095    o add "--embed-source" option to genmake2 which, when the supporting
1096      tools can be compiled (as determined by genmake2) will turn on the
1097      embed_files package which then embeds the entire MITgcm source code
1098      (*.[fFhc] + Makefile) used for the build within the executable
1099      - requested by CNH but off by default
1100      - adds a paltry <9MB to the mitgcmuv executable in most cases
1101      - only writes the output when useEMBEDSRC in eedata is true
1102    o clean up 3-dim. relaxation codes:
1103      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1104      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1105      * Thanks to Tom Haine for testing!
1106    
1107    checkpoint57z_post
1108    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1109      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1110    o fix the pickup behavior for obcs in combination with ptracers
1111    o fix a bug in ptracers_external_fields_load
1112    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1113      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1114    o transfered surface NH pressure to eta field (if exactConserv).
1115    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1116         and update lab_sea output.txt file.
1117    o completing 3-dim. relaxation code: additional term
1118         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1119      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1120      * At compile time, in "EXF_OPTIONS.h" set
1121          #define  ALLOW_CLIMTEMP_RELAXATION
1122          #define  ALLOW_CLIMSALT_RELAXATION
1123      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1124          tauThetaClimRelax3Dim = 15552000.0,
1125          tauSaltClimRelax3Dim  = 15552000.0,
1126      * 3 cases:
1127          1) Use a constant-in-time 3-dim. field
1128          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1129          3) Real-time relax. to time-evolving prescribed field
1130    o Adding Laplacian-type smoothness constraint on
1131      initial and boundary (forcing) controls (ic, bc)
1132      * enable at compile-time via
1133        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1134      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1135      * Absolute scale somewhat unclear so far
1136      * no area weighting was included since no other cost term does so far
1137    
1138    checkpoint57y_post
1139    First step for a NLFS adjoint
1140    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1141    o new init. routines for calc_r_star, calc_surf_dr
1142    o still need to deal with ini_masks_etc
1143    o testreport seemed happy
1144    checkpoint57y_pre
1145    
1146    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1147    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1148    o add new offset feature to offline pkg (plus minor cleanup)
1149    o cfc fixes for final year of integration
1150    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1151      be in GCHEM_OPTIONS).
1152    
1153    checkpoint57x_post
1154    o fix testreport Pb in multiple test experiment.
1155    o cleanup our namelist syntax in verification:
1156      - make it more F95 standards compliant (some work still needed)
1157      - allows the vast majority of our tests to work with gfortran
1158    o Non-Hydrostatic:
1159     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1160     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1161    o Allow to apply AB on T,S rather than on AB(gT,gS):
1162     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1163     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1164       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1165     - need a "clever" read_pickup to restart from the other AB formulation
1166    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1167    o remove some unused variables (reduces number of compiler warnings)
1168    o adjoint
1169      * Disable useVariableViscosity for adjoint for time being
1170        (there are a number of extensive recomputations)
1171      * Initialize certain variables needed for adjoint
1172    
1173    checkpoint57w_post
1174    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1175                 fix the singleCpuIO RS version of MDSWRITEFIELD
1176       and add a WARNING if using globalFiles=T with multi-processors.
1177    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1178      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1179    o tracer advection scheme:
1180      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1181       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1182       was not very convenient).
1183      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1184       (further tests needed for the implicit DST & Flux-Limiter schemes).
1185    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1186      and sRef for convenience, handy, when you want to initialize
1187      ptracers in a large domain with a constant non-zero value. Also,
1188      untangle ptracers_init.F a little.
1189    
1190    checkpoint57v_post
1191    o change dome exp. to use variable viscosity in side-drag terms.
1192    o remove all the files from the cfc_offline test since they are now
1193      incorporated into tutorial_cfc_offline which has been producing
1194      identical results for a few days of testing
1195    o add new parameter: sideDragFactor to enable half-slip-side BC
1196      and change side-drag S/R to use viscosity from mom_calc_visc
1197      (can switch back by setting sideDragFactor=0.); affects results at
1198      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1199       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1200    o vorticity & strain are now computed without masking, to account for
1201      no-slip-side BC in variable viscosity calculation ; mask is applied
1202      anyway later on, before computing advection/coriolis terms.
1203    o modify exp4 to test new obcs support for reading from external files
1204      and for passive tracers
1205    o fix behavior of ptracers_monitor when monitor output is written to a
1206      netcdf-file; still not independent of monitor.F (writes in the same
1207      file).
1208    o change default value of tRef (put a uniform, meaningful value for ocean
1209      & atmos) and initialize sRef (was missing, as Martin mentioned).
1210    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1211      to be proportional to enstrophy dissipation length.  Thus,
1212       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1213      This is now consistent with Smagorinsky and with the manual.
1214    
1215    checkpoint57u_post
1216    o OBCS and PTRACERS: add open boundary support for passive tracers
1217      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1218        OB-values from file; this is not different from the way theta and salinity
1219        are treated
1220      - however, Orlanski-radiation conditions are not supported, and the model
1221        will stop if you use pTracers and Orlanski at the same time.
1222      - beefed up the rountine obcs_external_fields_load: now only those open
1223        boundary values are overwritten with values from files for which there
1224        are really files, otherwise the OB-fields remain untouched. This makes
1225        it possible to use different OBs at different ends of the domain (as
1226        with EXF)
1227    o reduce number of exch calls in shap_filt (s2).
1228    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1229      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1230    
1231    checkpoint57t_post
1232    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1233    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1234      same truncation, independent of the face number: affects affects several
1235      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1236    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1237      note that biharmonic viscosity + no-slip was not tested in any experiment.
1238    o fix bug in non-linear free-surf side-drag ; generate new output for
1239      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1240    o make mnc honor the writeBinaryPrec flag for most kinds of output
1241    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1242    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1243      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1244    o add brackets in multi-terms sum to get same truncation, independent of
1245      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1246      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1247    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1248      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1249      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1250      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1251      Suggested values of viscosity parameters found in mom_calc_visc.
1252      Many new viscosity diagnostics available.
1253    
1254    checkpoint57s_post
1255    o Add clearing-house for viscosity calculations, mom_calc_visc and
1256      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1257      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1258      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1259      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1260      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1261      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1262      ViscAhStrain and viscAhTension are now retired.
1263    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1264    o In response to JMC's bug report, genmake2 now ignores any soft-links
1265      that it finds in the *current* directory when searching for files.
1266      Soft-links found in any other source directories will still work as
1267      they did before.
1268    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1269      a C routine to unlimit the stack size
1270    o mnc-ify pkg/aim snapshot vars
1271    o mnc-ify pkg/land as requested by Daniel
1272    o various changes to mnc including:
1273      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1274      - output can now be grouped so that all files within a group
1275          change the ITER portion of their names in lock-step together
1276      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1277          and works with both EXCH1 and EXCH2 (but needs more testing)
1278      - writing works for all verification test cases w/ g77 on Linux
1279    
1280    checkpoint57r_post
1281    o make MNC variable initialization happen earlier
1282    o add diagnostics for (almost) each term of the momentum Eq.
1283    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1284    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1285    o remove MINIMAL_TAVE_OUTPUT option ;
1286      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1287    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1288      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1289    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1290    o add time-dependent SST, SSS control
1291    o cost terms in ecco/ modularized (new cost_generic.F)
1292    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1293    o new infrastructure for seaice model vs. obs misfits in seaice/
1294      * driver from the_main_loop.F is seaice_cost_driver.F
1295      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1296      * gradient check in Exp. 6a of natl_box_adjoint/
1297    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1298      (see README file)
1299    
1300    checkpoint57q_post
1301    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1302    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1303      - bug was reported by Jean-Michel and Ian Fenty
1304    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1305      update exp. cpl_aim+ocn output.
1306    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1307      Needed for high-res. runs with large global files
1308      to be able to limit tapelev size
1309    o Changed some tests for adjoint:
1310      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1311      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1312      * global_ocean.90x40x15/ back to default 3-level checkpointing
1313    o Modifications to enable scripted COMMON to MODULE conversion
1314      * verification/OpenAD/code/ has necessary scripts and description;
1315      * converts, compiles and runs successfully;
1316    
1317    checkpoint57p_post
1318    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1319    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1320      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1321    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1322    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1323      (was already the case for dissipation with mom_vecinv,
1324       and also the case for grad.PhiHyd when staggered-timeStep)
1325      This will allow to put dissipation out-off the AB time-stepping.
1326     Unfortunately, affects truncation error. Update output of exp. that "fails"
1327      (cg2d matching number) and leave the others for later: front_relax(10),
1328      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1329      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1330    
1331    checkpoint57o_post
1332    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1333      (2) its ready to be documented during the 20050801 DocFest
1334    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1335      for ideal_2D_oce and lab_sea on linux_ia32_g77
1336    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1337      in global1x1_tot/code_seaice_adj to access indices 32, 33
1338      (worth another tag)
1339    
1340    checkpoint57n_post
1341    o adding precip control xx_precip 32
1342    o adding swflux control xx_swflux 33
1343    o Replacing 10 forcing penalty cost routines by 1 generic.
1344    o Implementing partitioning in time-mean and variable adjustment
1345      for atmos. state.
1346    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1347    o in natl_box_adjoint:
1348      * updated exp 1 to 10
1349        (but does not have time-mean vs. variable split results yet)
1350    o updated global1x1/*_seaice_adj/
1351      to incorporate latest changes
1352    o enable useSingleCpuIO for mdsio vector routines
1353      (applies in particular to tapelev I/O)
1354    o removed inefficient K-loop in all active_file*control*.F
1355    
1356    checkpoint57m_post
1357    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1358      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1359    o pkg/exch2: filling of face-corner halo regions is optional
1360      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1361    
1362    checkpoint57l_post
1363     tag before updating tutorials (pre-release-2)
1364    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1365       for output and interpolation of input fields onto model grid)
1366    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1367       Affects results of exp. rotating_tank ; update output.txt.
1368    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1369          and taking the square quantity and/or using a fraction-weight field.
1370    o fix aim_diagnostics_init.F mate numbers.
1371    o add mnc output capability to diagnostics/diagstat and update
1372      our cvsignore files for the ACSII output generated
1373    
1374    checkpoint57k_post
1375    o lab_sea now uses diagnostics package and provides a suite of
1376      new EXF diagnostics output.
1377    
1378    checkpoint57j_post
1379    o exf
1380      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1381        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1382        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1383      * extended diagnostics output
1384        - now includes all EXF variables
1385        - hs, hl moved to common block
1386        - separate S/R for diagnostics, called after ctrl vector is added
1387        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1388        - EXFqnet contains true Qnet (i.e. includes qsw)
1389      * updated verif. lab_sea, global_with_exf
1390      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1391        to ensure that diagnostics sees a true EXFqnet
1392    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1393    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1394      several times with different frequencies.
1395    o mnc-ify the thsice package as requested by Daniel Enderton
1396      - the monitor--MNC output needs work
1397      - many attributes need to be added (most are currently blank)
1398    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1399      - many attributes need to be added (most are currently blank)
1400    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1401    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1402    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1403      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1404         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1405    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1406     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1407    
1408    checkpoint57i_post
1409    o Diagnostics package was changed: diagnostic allocation is now deactivated
1410      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1411    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1412      add 1rst Order upwind vertical Shear.
1413    o add a quick fix for A/B checkpointing in OFFLINE mode
1414    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1415      end-run around the C/Fortran linking horror in eesup/src/timers.F
1416    o added pkg/runclock: allows user to terminate run based on wall clock
1417    o added non-hydrostatic scaling parameter: nh_am2
1418    o pkg/my82: futile attempt to make results compiler-independent by adding
1419      some "_d 0", etc. no effect.
1420    o for mnc output, fill the 'T' coordinate var with myTime and create a
1421      separate 'iter' variable for iteration count
1422    o pkg/diagnostics:
1423      add new capability: output of Global/Regional & per-level statistics ;
1424      tested against monitor output (including land & thSIce) on various exp.
1425    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1426    
1427    checkpoint57h_done
1428      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1429      data.diagnostics, data.gchem, data.ptracers) is done.
1430    
1431    o pkg/diagnostics: prepare for Global/Regional statistics.
1432      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1433    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1434      and rename it: DIFFERENT_MULTIPLE
1435    
1436    checkpoint57h_post
1437    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1438    o pkg/diagnostics: change output frequency, now in seconds (instead
1439      of Nb of iterations). This requires to change data.diagnostics.
1440    checkpoint57h_pre
1441    
1442    o in mnc, let the user create the output dir if both mnc_outdir_date
1443      and mnc_outdir_num are false
1444    o add fflags() to pkg/diagnostics which allows one to specify, on a
1445      per-file basis, the file precision [default behavior is unchanged]
1446    o added diagnostics to pkg/kpp, including computation of mixed layer
1447      depth based on a temperature/density criterion
1448    o updated verification/natl_box to test the new pkg/kpp diagnostics
1449    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1450    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1451    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1452      not mnc -- this mistake was found by JMC and is now corrected
1453    
1454    checkpoint57g_post
1455    o add Adams-Bashforth 3rd Order time stepping:
1456      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1457      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1458    checkpoint57g_pre
1459    
1460    o make lambda[Theta,Salt]ClimRelax spatially varying
1461      (default remains spatially uniform constant based on tau)
1462    o added new control variables
1463      * init. uVel, vVel, etanN
1464      * lambda[Theta,Salt]ClimRelax
1465    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1466      (suggested by G. Forget)
1467    
1468    checkpoint57f_post
1469    o add parameter "baseTime" = model base time = time at iteration zero
1470      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1471      account for baseTime shift
1472    o move Coriolis arrays from PARAMS.h to GRID.h
1473    checkpoint57f_pre
1474    
1475    o mnc-ifying the seaice package
1476    o introduced an alternative length scale calculation for use in the limiting
1477      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1478    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1479    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1480      as well as grad(vort3).  Made it compatible with both approximate form
1481      for the cubed sphere and full form of these gradients.  Added flag
1482      useFullLeith to select between approximate and full form.  
1483    o add "d0" in getcon.F to reduce differences between compilers/platforms
1484      update output.txt of exp. fizhi-gridalt-hs
1485    o change port_rand funtion to allow to set the seed.
1486    o fix obscure MNC bug involving conversion between reals and integers
1487      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1488        new version is now more standards-compliant
1489    o adjoint-related modifications
1490      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1491      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1492      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1493    
1494    checkpoint57e_post
1495    o Adding eddy stress controls a la Ferreira et al.
1496    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1497    
1498    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1499      update output.txt of exp. fizhi-gridalt-hs
1500    o add more "Z" dimensions and associated coordinate vars to MNC
1501    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1502    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1503      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1504      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1505      months and years.  Requires pkg/cal.
1506    o diagnostics: add pickup functionality
1507      - off by default for backwards compatibility
1508      - current version only uses MDSIO -- MNC will be added
1509    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1510    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1511    
1512    checkpoint57d_post
1513    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1514    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1515      output from the diagnostics package
1516    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1517    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1518      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1519    o add coordinate variables to the MNC output from the diagnostics package
1520    o change MNC-flags default value: true when useMNC=TRUE
1521    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1522      the ability (off by default) to read the grid information using MNC
1523    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1524    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1525    o do snap-shot diagnostics at the middle of the time-interval (instead of
1526      at the end).
1527    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1528      new test for AIM with thSIce + slab-ocean
1529    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1530    o move state variable diagnostics to the beginning of the time step ;
1531      (note: still needs some work specially for snap-shot diagnostics)
1532      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1533    
1534    checkpoint57c_post
1535    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1536    o generate new output.txt files on faulks with g77 & the new -ieee option
1537    checkpoint57c_pre
1538    
1539    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1540      update output.txt of exp. global_ocean.90x40x15
1541    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1542      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1543    o add saltFlux(+File) forcing capability with periodicExternalForcing
1544    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1545    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1546    o improvements for the MNC output from DIAGNOSTICS:
1547      - correct handling of the unlimitied dimension
1548      - all dims now have associated coordinate variables
1549      - variables located at U, V, and Corner ("Z") points are now written
1550        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1551        *all* data points are output
1552    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1553    o added pkg/seaice/seaice_monitor.F
1554    o mdsio_readfield.F can now read files visible only to master MPI process.
1555    o pkg/seaice: some test code for ice-modified ocean stress
1556    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1557      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1558      spurious negative numbers for precipitation and humidity.  Will cause
1559      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1560    o pkg/ctrl/
1561      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1562        May be enabled via doPackDiag
1563      *  introduce z-scaling of
1564         + gradient (doZscalePack) and
1565         + control (doZscaleUnpack)
1566    o pkg/mdsio/
1567      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1568      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1569    
1570    checkpoint57b_post
1571    o simplify options in diagnostics_fill arguments (remove weird combinations)
1572    o fix MNC coordinate variables so that they now contain per-face index
1573      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1574      general, EXCH2 grids are only aligned to a "local" coordinate system
1575    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1576    o Implement instantaneous output within pkg diagnostics:
1577      setting a negative frequency in data.diagnostics produces
1578     "snap-shot" output (as opposed to time-average if freq > 0)
1579    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1580      NOTE: change ptracer diagnostics name: use 2 characters to work with
1581            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1582    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1583      becomes the coordinate variable for the 'T' dimension
1584    o add CF-style coordinate variables to MNC
1585      - just a first cut:  numbers are meaningless on the cubesphere and
1586        missing along the T axis but otherwise it works!
1587    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1588    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1589    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1590      this is based directly on what the model compute, so that the content of
1591      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1592    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1593    o clean up build options files for SunOS, in particular
1594      - remove -traditional from xmakedepend
1595      - change -xarch=v9 to -xarch=native for f77
1596      - restore use of make (not gmake)
1597      - add CC=gcc if using g77
1598    o changes per discussion of AM, JMC, & EH3 today:
1599      - move redundant "grid" variables out of "state" -- in preparation of
1600        creating proper CF-style coordinate variables and in recognition
1601        that any/all grid variables can be easily copied (eg. w/NCO) from
1602        the grid files into any of the other NetCDF files
1603      - *always* output grid variables with MDSIO (this will eventually be
1604        changed)
1605      - output MNC grid file if useMNC is true
1606    o every instance of _END_MASTER() has been found and replaced with
1607      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1608      preprocessors
1609    o re-arrange diagnostics pkg initialisation:
1610     - allow each package to extend the available diagnostics list
1611     - add some checking and fix small problems (multi-threaded, ...)
1612     - new S/R diagnostics_fill (replace fill_diagnostics):
1613       look through the short list of active diag. (instead of the long list)
1614       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1615    
1616    checkpoint57a_post
1617    o this set of changes restores TAMC compatibility
1618      tested for global_ocean.90x40x15 adjoint on trough
1619      (what a pain)
1620    
1621    checkpoint57a_pre
1622    o some modifs in tools/build_options for sunos
1623    o call ctrl_pack for ctrl at end for optimcycle=0
1624    
1625    checkpoint57
1626    o add horizontal bi-harmonic viscosity for vertical velocity
1627      - new parameter viscA4W (defaults to viscA4)
1628      - affects only non-hydrostatic code
1629      - to be done: no-slip lateral boundary conditions
1630    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1631    o implement Implicit Vertical advection for pTracers
1632    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1633      (implemented also for implicit vertical diffusion & advection)
1634    o OBCS: extend application of tracer open boundary conditions
1635      to a strip beyond the boundary of width Olx/Oly
1636    o add call monitor to TAF set of required calls (flow directives)
1637      and include in natl_box_adjoint
1638    o untangle a few ifdefs related to cost, ctrl, autodiff
1639      untangel a few ALLOW_ECCO_OPTIMIZATION
1640    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1641      (theta2, salt2 in ecco_cost_weights)
1642    
1643    checkpoint56c_post
1644    o OBCS as control variables
1645      - update ctrl_ad_diff.list, obcs_ad_diff.list
1646      - remove balance of obcs controls from default
1647      - fix index bug nobcs in ctrl_init
1648      - fix dummy fields filen in ctrl_pack
1649      - add dummy weights for obcs
1650    o lsopt: comment out fort.94 output
1651    o optim:
1652      - remove unnecessary header files
1653      - adjusted namelists
1654      - add xerbla.F to Makefile
1655    o exf:
1656      - multiple modifications of exf_check_range
1657      - unit change in exf_init_runoff from [m/year] to [m/s]
1658    o mdsio:
1659      - i/o-vector change debugLevel from debLevA to debLevB
1660    
1661    checkpoint56b_post
1662    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1663      is called from DO_THE_MODEL_IO
1664      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1665      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1666      - clean up PTRACERS_WRITE_TIMEAVE a little
1667    o add another verification experiment that tests both the cfc-pkg and
1668      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1669      reactive tendencies treated inline with regular timestepping
1670    o testreport previously did a lousy job of comparing small numbers, so
1671      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1672      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1673      testreport.
1674    o ptracers_monitor: bug fix for MPI
1675    
1676    checkpoint56a_post
1677    o GCHEM: finish reorganizating the package
1678      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1679        (introduces another 3D-array for each passive tracer, but only if
1680        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1681        gchemTendency is not needed because the timestep is done separately)
1682      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1683      - GCHEM is now---more or less cleanly---separate from PTRACERS
1684      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1685        so clear to me how that should be done in a general way.
1686    o CFC: improve formatting of output in CFC_ATMOS
1687    o PTRACERS:
1688      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1689        that ALL experiments with ptracers enable can be checked. This makes
1690        GCHEM_MONITOR obsolete.
1691      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1692        monitorFreq
1693      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1694    o add PTRACERS (PTR0[1-5]) to testreport output
1695    o exf_check_range:
1696      * default changed to .TRUE.
1697      * will check values for niter0 if debLevA, every timestep if debLevB
1698      * STOP in exf_check_range if 'out of range'
1699      * range chosen generous to allow for potential extema
1700      TBD: a version with stricter range
1701           permitted range would be runtime parameters
1702    o GMredi:
1703      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1704      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1705      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1706    o GCHEM:
1707      - move call to GCHEM_FORCING_SEP, so that it is now called before
1708        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1709      - introduced a useGCHEM runtime flag and applied it everywhere.
1710      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1711        this flag is now only visible within GCHEM-pkg routines.
1712      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1713        be replaced by a 3D array that is computed before thermodynamics; for
1714        this, the tracer ID iTracer had to be included into the parameter list
1715        of ptracers_forcing
1716      - set up forward_step to call gchem_forcing, that will replace
1717        gchem_forcing_int in ptracers_forcing
1718      - cleaning up
1719    o small cleaning of exch2: remove files that are also in eesupp/src
1720    
1721    checkpoint56
1722    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1723    o mnc: cleanup "full" files--fixes out-of-memory problem
1724    o ECCO-GODAE
1725      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1726      * fully merged and updated from SIO code
1727        windstress sign change affects
1728        - exf_inscal_[u/v]stress
1729        - sign of xx_tau[u/v] adjustments
1730        - signs in cost_scat
1731      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1732      * natl_box_adjoint updated and compressed
1733      * 2-level checkpoint switch added
1734        (tested in EXP. 1 of natl_box_adjoint)
1735      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1736    o SVD
1737      * first complete, non-hacked version for SVD calculations
1738      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1739        performed via direct access files admtlm_vector.it????
1740        (via ctrl_[un]pack)
1741      * optimcycle is used for ARPACK iteration counter
1742        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1743      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1744        and add linear transforms where necessary
1745      * controls are initial/final SST, SSS (can be extended; need to check
1746        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1747    o mdsio: filename info to both stderr, stdout
1748    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1749      from sign change
1750    
1751    checkpoint55j_post
1752    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1753      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1754    o add consistent build directories and .cvsignore files to verification
1755    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1756    o make all subroutines 30 or less characters in length for certain older
1757      compilers to work (a thorough search only turns up two routines in
1758      pkg/ptracers)
1759    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1760      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1761    
1762    checkpoint55i_post
1763    o change arrays for total vertical diffusivity (2.D if explicit,
1764      3.D if implicit) ; each ptracer uses its own background value.
1765    o added mnc/NetCDF output capability to ocn_compon_interf
1766      - added bits to verification/cpl_aim+ocn so that it can run on
1767        ITRDA and other clusters without the mpirun "-wd" option
1768    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1769      configuration
1770    o give MNC the ability to create additional files rather than
1771      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1772      - the default is just less than 2GB which is a practical limit
1773        on many systems
1774    o Compute the non-local term using either KPP vertical diffusivity (=default)
1775       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1776    
1777    checkpoint55h_post
1778    o add verification test "vermix"
1779    o remove all the *_ioinc flags and replace with the single global
1780      outputTypesInclusive flag
1781    o allow to set a vertical profile of vertical diffusivity for T & S
1782    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1783    o useMNC moved from data.mnc to data.pkg
1784    
1785    checkpoint55g_post
1786    o Renaming carbon AD experiments to comply with testreport conventions
1787    o Updating adjoint of Held-Suarez hs94.1x64x5
1788    o Fixing directives for non-ECCO forward_step, after ECCO directives
1789      have been fixed to avoid recomp. of do_oceanic_phys
1790      Works well for global_ocean.90x40x15,
1791      but recomp. issue remains for carbon
1792    o Updating adjoint output for natl_box_adjoint after
1793      pkg/ecco has been modified (see taga c55d_post)
1794    
1795    checkpoint55f_post
1796    o rename to timeave_init_fixed
1797    
1798    checkpoint55e_post
1799    o some delicate re-shuffle of store directives to avoid one
1800      extra call of do_oceanic_physics
1801      affects ecco_the_main_loop.F, do_oceanic_physics.F
1802      checkpoint_lev1_directives.h
1803    o NB: this may break global_ocean adjoint temporarily,
1804      but it is clear how to fix it. Will do later, need this now.
1805    
1806    checkpoint55d_post
1807    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1808    o ecco_cost_weights is modified to 1x1 runs
1809    o modifs to allow observations to be read in as
1810      single file or yearly files
1811    o enable to read exf forcing fields as either
1812      single file or yearly files (flag useExfYearlyFields)
1813    checkpoint55d_pre
1814    
1815    o switch between 2-level and 3-level checkpointing
1816    o add ability of MNC to write local and "partial" (eg. 2D slices where
1817      the full 3D field is never actually stored) arrays to NetCDF files
1818      with the correct (that is, the complete multi-dimensional) set of
1819      array indicies
1820      - used in mom_vecinv() to write the diagFreq output
1821      - tested (demonstrated) in verification/aim.5l_cs
1822    o further mnc-ification
1823      - add verification/lab_sea to the list with mnc setups
1824      - fix undefined mnc v-names in cd_code
1825      - add kpp to mnc output (both snapshot and timeave)
1826    o non-hydrostatic code
1827      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1828        in calc_gw.F
1829      - defaults to viscAh
1830      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1831        friction or Leith) in non-hydrostatic mode, as long as there is
1832        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1833    o pkg/cost
1834      extend simple cost functions to treat time mean quantities
1835      (T,U,V) via cost_accumulate_state from cost_tile
1836    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1837        be 2 times larger than the minimum size the advection scheme requires.
1838        now get a perfect conservation of salt in advect_cs test-exp (updated)
1839    o GGL90 (Gaspar's TKE mixed layer)
1840      - add horizontal diffusion of TKE, requires exchanges in
1841        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1842        default. In OPA there is no horizontal diffusion of TKE but the
1843        mixing coefficients are computed from a horizontal average of TKE of
1844        6 points or so. I think that diffusion has a little more physical
1845        justification.
1846      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1847        was in vain)
1848      - mask tke-variable in ggl90_init
1849    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1850    o fix biharmonic diffusion on CS-grid.
1851    o more obcs stuff
1852      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1853        for reading boundary values. This routine is called from
1854        obcs_prescribe_read
1855      - updated obcs_check
1856      - changed sponge layer relaxation parameter units for days to seconds
1857      - turned off sponge layer by default
1858      - changed argument list of OBCS_CALC to myTime+deltaTclock
1859      - fixed about 35 bugs in obcs_external_fields_load
1860    
1861    checkpoint55c_post
1862    o obcs stuff
1863      - new runtime flags useOBCSprescribe, useOBCSbalance
1864      - re-arranged obcs_calc
1865      - moved exf_getobcs to obcs_prescibe_read
1866        obcs_prescibe_read is called after ORLANSKI stuff
1867        and independent of it (executable can contain all).
1868      - updated obcs_check
1869      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1870        These may be necessary only if tangential velocities are
1871        prescribed at OB, not sure, needs testing.
1872    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1873      which simplifies the calls and passes the ifc check-bounds test
1874    
1875    checkpoint55b_post
1876    o add a 2D scalar, Z location, exchange_2 routine.
1877    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1878      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1879      affects advect_cs results (for the wrong reason): update output.txt
1880    o use a more standard discretization for biharmonic viscosity ;
1881     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1882      affects results of dome set-up: update output.txt
1883    o fix gad_advection.F (CubedSphere part), back to version 1.23
1884    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1885    
1886    checkpoint55a_post
1887    o merged code to
1888      * prescribe/read time-dependent open boundaries
1889        (works in conjunction with exf, cal)
1890      * sponge layer code for open boundaries
1891      * each boundary N/S/E/W now has its own CPP option
1892        (healthy for the adjoint)
1893    
1894    checkpoint55
1895    o up-to-date adjoint of previous breaks
1896      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1897      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1898      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1899      - carbon: * remove tr1-related adjoint verification
1900                * add ptracer as control variable
1901    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1902      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1903    
1904    checkpoint54f_post
1905    o in verification/carbin/ remove experiment related to
1906      ALLOW_PASSIVE_TRACER (array tr1 etc)
1907      code_ad/ input_ad/ results_ad
1908    
1909    o add two new packages
1910      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1911        + subject to optimization (memory)
1912      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1913        + subject to reordering (many GOTOs in the original code)
1914        + so far opps is called for every (i,j) point, and then operates in
1915          the vertical; one may want to reorder the scheme in order operate in
1916          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1917          fields)
1918    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1919      - all verification tests compile and run with linux_ia32_g77
1920      - defaults are compatible with current input files--nothing
1921        should change if you were not previously using MNC
1922      - MNC output has been added in numerous places (eg. timeave)
1923        but there are still a few writes not yet do-able with MNC
1924        (this is in progress)
1925      - flags now allow for either/or/both use of MDSIO and MNC and
1926        documentation will soon follow
1927      - numerous small formatting cleanups for ProTeX
1928    o add version info (via BUILD_INFO.h) to MNC and stdout
1929    
1930    checkpoint54e_post
1931    o add two new packages
1932      - pp81 (Packanowski and Philander, 1981), Richardson number and
1933        stratification dependent mixing
1934      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1935      - these scheme operate in a similar manner as KPP (without ghat, of
1936        course), however there is only one diffusivity that is used for both
1937        temperature and salinity (and passive tracers)ç
1938    o add offline package
1939    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1940      provided by Stephanie Dutkiewicz
1941    o genmake2: add ability to search for C compilers and cleanup test output
1942      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1943    
1944    checkpoint54d_post
1945    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1946    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1947      leading to additional shift by 5 days each year of integration
1948       (i.e. leading to considerable offset over the years)
1949    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1950    o start with no AB and no initial filtering (staggerTimeStep):
1951      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1952    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1953      (external loading & cpl import/export stay in forward_step.F)
1954    o update coupling interface to work with new staggerTimeStep
1955    o change MDSIO ptracers_pickup.
1956    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1957    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1958    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1959    
1960    checkpoint54c_post
1961    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1962      this affects (truncation error) output.txt of test-exp:
1963       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1964    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1965    o change Qnet to always be the net heat flux, (+upward).
1966      affects (truncation error) output of natl_box exp.: updated
1967    o define the max number of passive tracers in PTRACERS_SIZE.h
1968    o start to test mnc routinely in exp0
1969    o add sea-ice loading (sIceLoad) as a new forcing field.
1970    
1971    checkpoint54b_post
1972    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1973       impressive on Altix and Opteron systems)
1974    o diagnostics can now write NetCDF files through the mnc package
1975    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1976    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1977    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1978      affects (truncation error) output of lab_sea & natl_box exp.: updated
1979    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1980    
1981    checkpoint54a_post
1982    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1983    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1984    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1985    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1986      + internal_wave (shift in writing cg2d_ini_res)
1987    checkpoint54a_pre
1988    
1989    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1990      - modified verification/lab_sea and natl_box_adjoint accordingly
1991    
1992    checkpoint54
1993    checkpoint53g_post
1994    o prepare splitting of thermodynamics: store convect.counter in common block
1995    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1996      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1997    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1998    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1999    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2000    o restore adjointability
2001    
2002    checkpoint53f_post
2003    o modifications that affect AIM experiment results (update output.txt):
2004      - no advection of S at top interface Nr (pkg/generic_advdiff)
2005      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2006    o AIM pkg:
2007      - include stability function into surf.Flux derivative relative to Tsurf
2008      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2009    
2010    checkpoint53e_post
2011    o merged cylindrical coord configuration
2012    o added rotating_tank experiment
2013    checkpoint53e_pre
2014    
2015    checkpoint53d_post
2016    o faulks upgraded: re-generate output.txt that have changed:
2017       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2018    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2019    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2020    o added Sadourny discretization of Coriolis
2021      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2022      - re-enabled use of omega3 (useAbsVorticity)
2023    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2024      vector-invariant equations
2025      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2026    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2027      hopefully without new bugs
2028      - still to do: biharmonic friction for non-hydrostatic w
2029    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2030    o regenerated output for global_ocean_ebm (using -ieee)
2031    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2032      of mom_common/
2033      - simple re-arrangement of instructions within computing loop
2034    checkpoint53d_pre
2035    
2036    checkpoint53c_post
2037    o new version of coupler for AIM+thSIce and Ocean models
2038     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2039     - land: change Evaporation of snow
2040     - aim with thSIce: fix bug in snow-precip.
2041    o changes to calc_gw.F
2042     - bug fix for w^2 term near the bottom boundary
2043     - (hopefully) improve the lateral slip boundary condtions for use with
2044        partial/looped cells
2045      - because the bug fix changes two verification experiments anyway (exp5
2046        and plume on slope), change the lateral boundary condition from half slip
2047        to the value of no_slip_sides
2048    o ebm package wasnt quite up to the parallel task. Fixed that.
2049    o Adjoint of EBM package + verification
2050      * TLM OK
2051      * ADM not sufficient accuracy yet (needs further testing)
2052    
2053    checkpoint53b_post
2054    o Commiting new energy balance model to repository
2055      * package is pkg/ebm
2056      * verif. is verification/global_ocean_ebm
2057      * references are in ebm_driver.F
2058    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2059    C        Global thermohaline circulation. Part I:
2060    C        Sensitivity to atmospheric moisture transport.
2061    C        J. Climate 12(1), 71-82
2062    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2063    C        Global thermohaline circulation. Part II:
2064    C        Sensitivity with interactive transport.
2065    C        J. Climate 12(1), 83-91
2066    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2067    C        Destabilization of the thermohaline circulation
2068    C        by atmospheric eddy transports.
2069    C        J. Climate 7(12), 1870-1882
2070    o Will need long integration testing.
2071    checkpoint53b_pre
2072    
2073    o created pkg/mom_common in preparation for variable viscosity code
2074    o renamed and split ini_mnc_io
2075    o pkg/land: only liquid water can diffuse or run-off
2076    o AIM using land: soil wetness availability account for snow
2077    o added printMapIncludesZeros to EEPARMS namelist
2078    
2079    checkpoint53a_post
2080    o restore TAMC compatiility for exf_constants.h
2081      (no usage of _d in .h)
2082    o Additional storing in KPP in an attempt to fix
2083      TAMC problem with adjoint of KPP code.
2084      (no success...)
2085      Identical code works fine with TAF.
2086    o Fixed verification/natl_box_adjoint experiments.
2087      Initial conditions for Experiments 4 and 5 are now
2088      set to "SEAICE_initialHEFF=0", which is more reasonable,
2089      and hence gives results closer to that of Experiment 2.
2090      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2091    
2092    checkpoint53
2093    o stable checkpoint with up to date adjoint
2094      TLM tests only run for 1st grdchk at the moment. Its unclear if
2095      this is a code problem or a problem with resetting code for g_
2096      variables that is being autogenerated wrong.
2097      Otherwise:
2098       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2099       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2100         are both still in chaos following their security messes.
2101    
2102    checkpoint52n_post
2103    o various build (mostly genmake2) changes including:
2104      - ability to build/run more easily within Cygwin and MacOS X
2105      - more complicated Makefiles with a stronger dependence on Gnu Make
2106    o pkg/seaice modifications
2107      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2108        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2109        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2110      - changed proxy for geostrophic velocity and updated
2111        verification/lab_sea/results/* accordingly
2112      - removed ADI dynamic solver from pkg/seaice
2113      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2114        they caused a segmentation fault under certain circumstances
2115      - removed unused field WATR
2116    o bug fix in exf-package:
2117      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2118         now reflect that.
2119    o small fixes in the cal-package:
2120      - set reference date to first of January for the 'model'-calendar
2121      - failing of cal_CheckDate in cal_FullDate now actually results in a
2122        warning
2123    o small modifications in exf-package to increase flexibility:
2124      - change climtempfreeze from a constant to a runtime parameter that
2125        is specified in data.exf_clim (default = -1.9)
2126      - introduce runtime parameter windstressmax (default = 2.0) that is
2127        specified in data.exf
2128    o fix in pkg/thsice:
2129      - update Evap (Tsf changes) to be consistent with Latent heat flux
2130      - maintain snow precipitation unchanged (even if Tsf >=0).
2131     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2132    
2133    checkpoint52m_post
2134    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2135      this does not change any of the results, because myIter=0 in swfrac always
2136      lead to jwtype=2 (the default anyway), but the call makes little sense
2137      as a default
2138    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2139    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2140      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2141    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2142    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2143    o extending useSingleCpuIO option to work with new exch2 I/O format
2144      - old-style, missing-tile I/O is still accessible by defining CPP
2145        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2146    o monitor package can write to NetCDF files and/or STDOUT
2147    o fix re-definition bug in MNC_GRID_INIT_ALL()
2148    o doc/api_reference added
2149      - a framework for building an API Reference Manual using all
2150        the "protex" comments embedded in the code
2151      - see pkg/generic_advdiff, pkg/mnc for examples
2152    o MNC:
2153      - make myThid the last argument for all subroutines
2154      - new default for the grid files: NO halos
2155      - add useMNC and other run-time flags
2156      - separate per-file-group handling of the unlimited dimension
2157      - early initialization of MNC w/ flags read at the eeboot stage
2158        and lookup tables set in initialize_fixed
2159      - write all MNC output to a freshly-created directory
2160    o thermodynamics sea-ice (thsice) is now tested with testreport.
2161    o test exp. advect_cs: use the standard cs32 grid ; update output.
2162    o Added functionality to grdchk:
2163      pick global i,j,k position (or nearest wet) where to perform check.
2164    
2165    checkpoint52l_post
2166    o new land formulation:
2167      a) use ground enthalpy as prognostic variable to ensure exact
2168         energy conservation.
2169      b) account for water temperature and for latent heat of freezing
2170         in all processes (rain, run-off, ground storage)
2171      c) compute surface and ground temperature implicitly.
2172    o aim_v23 modification for new land model:
2173      a) Treat separately land / ocean / sea-ice surface fluxes
2174         to allow implicit computation of land & sea-ice surface temp.
2175      b) add snow precipitation.
2176    checkpoint52l_pre
2177    
2178    o fix problem (when 1 tile is empty) in min/max monitor.
2179    o fix bug in timeAve (u,vZetatave in common block)
2180    o no restoring terms under ice for pkg/seaice
2181    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2182    o bug fix for pkg/seaice pickups
2183    o change MNC call locations and add coordinate attributes
2184    o mask vorticity at the corner ; affects global_ocean.cs output
2185    o fix ini_curvilinear_grid ; test CS experiments with mpi
2186    o aim.5l_cs: modify sea-ice fraction input file ; update output
2187    o exf: Adding simple range check routine for exf fields after read
2188    
2189    checkpoint52k_post
2190    o removed top-level directory "diags"
2191      - we migrated these functions to pkg/timeave a long time ago
2192    o fixed bug introduced in pkg/monitor
2193    o accuracy ctrlprec = 32 insuffient for gradient checks using
2194      averaged fields (I/O via cost_averages)
2195      -> use ctrl.h in active_file*.F to control I/O precision.
2196    o paramter list of CALL ADTHE_MAIN_LOOP
2197    o added initial do_the_model_io to ecco
2198    o set all ...Freq to zero after cost_final
2199      taveFreq, dumpFreq, pChkptFreq
2200    o MAIN and ECCO differentiability restored
2201    
2202    checkpoint52j_post
2203    o fix nchklev in tamc.h for global_ocean...
2204    o Bringing flow and store directives up-to-date
2205    o Really weird thing!
2206      call do_the_model_io from the_main_loop with parameters
2207      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2208      TAF places a faulty re-call of initialise_varia
2209      after cost_final call which should not be there!
2210    checkpoint52j_pre
2211    
2212    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2213      error messages
2214    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2215    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2216      debug output
2217    o modfied mdsio_writefield.F to handle non-global files under exch2
2218    o update AIM Cubed-Sphere exp (aim.5l_cs):
2219      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2220    o update AIM Equatorial Channel exp:
2221      use standard aim_v23 pkg and change the SST fields to be more realistic.
2222    o globalFile now works with exch2
2223    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2224      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2225    o limit timeave output for hi-res integrations
2226    
2227    checkpoint52i_post
2228    o removed CPP_EEOPTIONS.h from verification/*/code
2229    o updated the tiling for global_ocean_pressure
2230    checkpoint52i_pre
2231    
2232    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2233      the old pkg/aim).
2234    
2235    checkpoint52h_pre
2236    o shortened offending lines in exch2_send_rx?.template
2237    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2238    o genmake2: add build & execute test for NetCDF code
2239    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2240      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2241    o added useSingleCPUIO flag to monitor.F and mon_out.F
2242    o added temporary hack for sea-ice dynamics on the cube:
2243      metric terms are ignored and it is assumed that
2244      there is no sea-ice on cube faces 1, 2, 4, and 5.
2245    
2246    checkpoint52f_post
2247    o added exch2 cube routines to pkg/exch2
2248    o modified hs94.cs-32x32x5 to use it
2249    o added new grid files to hs94.cs-32x32x5
2250    checkpoint52f_pre
2251    
2252    checkpoint52e_post
2253    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2254      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2255    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2256      to work with implicit vertical advection and AB ;
2257    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2258    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2259     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2260    checkpoint52e_pre
2261    
2262    o fix bug in impldiff when Nr=1 or Nr=2.
2263    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2264    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2265    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2266      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2267    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2268    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2269    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2270    
2271    checkpoint52d_post
2272    o re-tiled many expts to allow comparison in multi-processor mode
2273      - updated output accordingly
2274      - changed hs94.128x64x5 to use intial T from file rather than use the
2275        random number generator
2276    o add infrastructure in model routines for fizhi and gridalt packages
2277    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2278    o changes to permit hi-res, cubed-sphere, configuration
2279      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2280      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2281      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2282        of surface winds for the cube
2283      (A verification experiment, based on global_ocean.cs32x15, but with
2284       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2285       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2286       complete with example surface forcing files and matlab scripts to look
2287       at the output and compare it with that of global_ocean.cs32x15.)
2288    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2289       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2290       to conform to the common rule.
2291    o check-in the first version of the coupler + interfaces for multi-components
2292       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2293       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2294       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2295       - ocean and atmos. share the same horizontal grid (no interpolation).
2296       - exchanges between component and coupler is done in forward_step
2297    o new verification experiment, cpl_aim+ocn:
2298       coupled ocean - AIM atmosphere on cs32 grid.
2299    
2300    checkpoint52d_pre
2301    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2302    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2303    
2304    checkpoint52c_post
2305    o Fixing OPTIONS files for use of exf:
2306      - ALLOW_ECCO not needed
2307      - ECCO_CPPOPTIONS.h should not be included from
2308        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2309        as has been the case in the past
2310      - All cal/exf related options are currently set in
2311        single header file. Should remain so until we
2312        agree on a consistent new policy.
2313    o Removed all CPP options for cal package.
2314      cal has no more CPP options.
2315    o modified STOREs in GAD_ADVECTION
2316    o corrected key comp. for passkey
2317    
2318    checkpoint52b_post
2319    o new version: "thsice" of thermodynamic sea-ice pkg:
2320     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2321     - modify fluxes but do not change theta directly;
2322     - light cleaning of bulk_force pkg (still needed with thsice).
2323     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2324       + output_thsice.txt to test thsice & bulk_force pkgs.
2325    o put back grid & coriolis monitor output.
2326    checkpoint52b_pre
2327    
2328    o call "do_the_model_io" at the beginning (=> dump initial state)
2329    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2330    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2331      (need info on NUMBER_OF_PTRACERS)
2332    o missing PTRACERS headers in some routines
2333    o default tamc.h in pkg/autodiff supposed to crash
2334      to ensure proper customization
2335    
2336    checkpoint52a_post
2337    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2338      - moved surfaceTendencyTice from pkg/seaice to main code
2339      - subroutine FREEZE_SURFACE now limits only surface temperature
2340        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2341        => new output.txt for global_ocean.cs32x15 & global_with_exf
2342      - keep the old version of FREEZE for backward compatibility;
2343        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2344      - corresponding modifs for TAF directives
2345    o added surface flux output variables to TIMEAVE_STATVARS
2346    o time-averaged output for pkg/ptracers
2347    o fix problem with ECCO-related divided adjoint
2348      snapshot file was missing some ad-variables,
2349      but no warning issued by TAF
2350    
2351    checkpoint52a_pre
2352    o some bug fixes for #undef REAL4_IS_SLOW
2353    
2354    checkpoint52 = ecco_c52_e35
2355    o after testing adjoints of checkpoint51u_post
2356    
2357    checkpoint51u_post
2358    o this is the post-merge tag of the ecco-branch
2359      (needs another clean checkout and re-testing)
2360    o various natl_box_adjoint configs and results
2361      but no input fields
2362    o obcs adjoint not yet merged!
2363    o adding ECCO global 1x1 and 2x2 degree configs
2364    o updated/extended some store directives for seaice
2365    o pkg/ecco now containes ecco-specific part of cost function
2366    o top level routines the_main_loop, forward_step
2367      supersede those in model/src/
2368      previous input data.cost now in data.ecco
2369      (new namelist ecco_cost_nml)
2370    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2371    
2372    checkpoint51t_post
2373    o this is the pre-merge tag of the ecco-branch
2374    
2375    checkpoint51s_post
2376    o cleanup: removed various obsolete #define-s
2377    o pkg/grdchk
2378      - renamed 'ph-grd 3' to 'grad-res'
2379      - merged from ecco-branch
2380        (remaining bug fixes for obcs gradient checks)
2381      - additional high-precision output for testreport
2382        (grep for 'precision_grdchk_result')
2383    
2384    checkpoint51r_post
2385    o cleaned up or removed CPP_OPTIONS.h files
2386    o updated results for some of the tests to reflect the new
2387      optfiles (-ieee: -O0 instead of -O3)
2388    
2389    checkpoint51q_post
2390    o cd_code:
2391      - moved cd_scheme.F -> cd_code_scheme.F
2392      - separate read_checkpoint from cd_code_ini_vars.F
2393      - separated cd_code part from write_checkpoint
2394      - updated AD_SOURCE, generated .flow
2395      - added CD_CODE_VARS.h to the_main_loop
2396      - Moving cd_code specific store dir.s to pkg/cd_code
2397    o ctrl package totally restructured
2398      - pack/unpack now optional and decoupled from
2399        xx_/adxx_ I/O
2400      - ctrl_pack/unpack cleaned
2401        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2402      - confined inclusion of AD_CONFIG.h to where necessary.
2403    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2404    
2405    checkpoint51p_post
2406    o create initial cd_code package
2407      - WARNING: the initialization of fields within packages
2408        is broken because INI_FIELDS (where READ_CHECKPOINT is
2409        called) is called *before* PACKAGES_INIT_VARIABLES.
2410        This seems to be backwards since
2411        1) its important to initially zero the entire field including
2412           the "halo" region
2413        2) zeroing needs to be done *before* reading pickup info
2414           and the pickup call might or might not happen in any
2415           particular run
2416      - this needs an overhaul for R2
2417    o cleanup verification/*/code/GMREDI_OPTIONS.h
2418    o cleanup testreport
2419    
2420    checkpoint51o_post
2421    o bringing AD-related verif's up to date with genmake2
2422      - carbon/
2423      - global_ocean.90x40x15/
2424      - hs.94.1x64x5/
2425      - (front_relax/ )
2426    o (more) consistent directory structure for AD-related verif.'s
2427    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2428    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2429    o bug fix in find_alpha.F for MDJWF:
2430      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2431        change rho -> rho-rhoConst
2432      - replace call find_rho to find_rhonum
2433    o initialisation of rFlx extended to full array (required by TAF)
2434      and shifted to thermodynamics
2435    o removed PTRACERS.h in ptracers routine
2436    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2437    o Correcting initialisations for fVerU, fVerV.
2438    o helping TAF to recognize dependency on kUp for
2439      fVerU, fVerV
2440    o Replacing delZ by delR in pkg/ctrl/
2441    checkpoint51o_pre
2442    
2443    o undid all of cp51 pending some cleanups and discussion
2444    o added the [#include "AD_CONFIG.h"] statement to all files that need
2445       it for adjoint/tl #defines
2446     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2447     o removed tools/genmake since it no longer works
2448    
2449    checkpoint51n_post
2450    o modifications to make FREEZE flux visible to pkg/kpp
2451      - moved surfaceTendencyTice from pkg/seaice to main code
2452      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2453      - subroutine FREEZE now limits only surface temperature
2454        (this means new output.txt for global_ocean.90x40x15,
2455         global_ocean.cs32x15, and global_with_exf)
2456    o added surface flux output variables to TIMEAVE_STATVARS
2457    
2458    checkpoint51n_pre
2459  o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F  o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2460  o added [#include "AD_CONFIG.h"] to all files that use the following  o added [#include "AD_CONFIG.h"] to all files that use the following
2461    defines:    defines:

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