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revision 1.222 by dimitri, Wed Dec 10 19:37:25 2003 UTC revision 1.940 by dimitri, Thu Jan 17 20:48:07 2008 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o verification/seaice_obcs: updated for restart test and latest options
8    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
9      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
10      for now this is only available for the C-grid code and also within
11      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
12    
13    checkpoint59m
14    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
15      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
16    o gad_som : fix flux output (& diagnostics) to have same units as other  
17      advection scheme fluxes (was previously multiplied by deltaT).  
18    o added verification/seaice_obcs both to test seaice open boundaries
19      and to provide an example matlab scrpt for generating them
20    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
21    o pkg/salt_plume: clean up salt_plume_frac.F to
22      remove redundancy in PlumeMethod 1 and 4
23    o pkg/kpp: added saltplume diagnostics
24    o pkg/obcs and pkg/seaice:
25      - do not set uice and vice to zero when OB*icefile are unspecified
26      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
27      - moved seaice tracer obcs after call to seaice_growth
28    o pkg/salt_plume: added various options for salt plume depth
29      criterion and for vertical distribution of the salt
30    
31    checkpoint59l
32    o pkg/ptracers: new version of ptracers pickup:
33      read meta file and write only fields which are needed to restart.
34      ( same logic as main pickup file ; also using pickupStrictlyMatch )
35    o pkg/seaice:
36      - add timescale for melting due to warm mixed layer as a means of
37        setting SEAICE_availHeatFrac more conveniently
38      - add a CPP-flag/runtime parameter check for flooding algorithm
39      - reformulated availHeat in seaice_growth.F to be independent of AREA
40    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
41      unit changes
42    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
43    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
44      SX vector computer.
45    o pkg/seaice:
46      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
47        seaice forcing fields can now be read only through pkg/exf
48      - removed some unused halos
49    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
50    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
51      or U/VICE from U/VWIND before computing U/VSTRESS
52    
53    checkpoint59k
54    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
55      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
56    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
57      all experiments pass when compile with un-initialised var. checking option.
58    o added pkg/salt_plume
59    o script to test restart (for now, in MITgcm_contrib/jmc_script)
60    o pkg/seaice: new read/write pickup version.
61      read meta file and write only fields which are needed to restart.
62      ( same logic as main pickup file ; also using pickupStrictlyMatch )
63    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
64    o lab_sea.hb87: modify the domain & update output.hb87.txt :
65      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
66      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
67      process. Fixed here by closing the domain at the Northern boundary.
68    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
69    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
70      a set of consecutive levels in/from a 3-D array.
71    o pkg/ptracers:
72      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
73      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
74    
75    checkpoint59j
76    o in pkgs: dic, obcs, offline, rbcs:
77      standard way to compute coeff. for time interpolation between 2 time reccords
78      which retains full precision (& make results less dependent on compiler).
79      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
80    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
81      packages instead of reading ice cover and wind speed separately
82    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
83     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
84      to allow to compile customized code before the update)
85    o cleaning-up:
86      - fix CPP instruction syntax in pkg/obcs
87      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
88        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
89      - fix some threads issue in IO parts.
90    o pkg/dic:
91      - add tons of "_d 0" (--> much better testreports !)
92       and then update outputs of tutorial_global_oce_biogeo
93    o pkg/mom_fluxform:
94      add a special version of momentum advection intended to conserve momentum
95      next to a bathymetry step or a coastline edge. (default = off = #undef)
96    o new read/write pickup version:
97      - for now, only implemented for main (mdsio) pickup file.
98      - write out only what is needed to restart; merge pickup_nh , pickup_ph
99        and main pickup together.
100      - read meta file; read only what is needed to restart; stop if a field
101        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
102        if it make sense (even if the restart is not perfect).
103      - if no meta file, assume that pickup to read corresponds exactly to
104        a pickup that would currently be written.
105      - read pickup written in the old format (until checkpoint59i) if it
106        recognizes an old meta file (no field-list).
107      - add a meta file in exp. which starts from a pickup: 2 cases:
108        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
109         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
110        b) a meta file describing the content of the associated pickup file
111         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
112    o pkg/mdsio & pkg/rw:
113      - new routine to read a meta file ; new set of routine to read
114        Multiple-fields file (with meta file).
115    o added open boundary conditions capability for seaice
116        HSNOW, HSALT, UICE, and VICE
117    
118    checkpoint59i
119    o adjoint:
120      * fix multiDimAdvection adjoint
121        (partial recomputation problem by TAF for fVerT(:,:,kDown)
122        and comlev1 size definition (maxpass vs. max. number of tracers)
123      * verification/global_ocean.90x45x15 adjoint now tests
124        NLFS and multiDimAdvection using DST3 (=30)
125      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
126    o pkg/kpp: add "_d 0" to real constant (if missing);
127      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
128      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
129    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
130      for internal parameters related to restart process (formerly from PARAMS.h)
131      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
132    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
133      as argument. (only atm2d & obcs write_pickup have not yet been updated)
134    o pkg/monitor:
135      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
136      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
137      - account for deep Atmosphere factor and density factor (anelastic)
138    o added open boundary conditions capability for seaice HEFF and AREA
139    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
140      thermodynamics
141      - requires a little reorganization, which affects the testreport results
142        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
143        so that now the conservative form is tested
144      - add a few comments
145    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
146    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
147    o add new diagnostics to seaice: advective, diffusive fluxes (only for
148      multidim-advection, for scheme 2 they are not filled) and transports,
149      thermodynamic growth rates
150    o change units of EmPmR (inside the code, + within coupling interface)
151      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
152      Affects results @ truncation level (cg2d match) and update output of
153       experiments: lab_sea(6), global_ocean.90x40x15(10),
154      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
155      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
156      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
157      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
158    
159    checkpoint59h
160    o pkg/exf:
161      - improve vectorization by moving if-statement out of loops in
162        exf_mapfields, exf_radiation
163      - exf_bulkformulae.F: introduce 2D fields and vectorize code
164    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
165    o testreport:
166      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
167        monitor & update offline_exf_seaice exp. output.
168      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
169    o pkg/seaice:
170      - bug fix in the evp solver: boundary conditions were affected be
171        masking of zMax/zMin (changes results)
172      - minor bug fix in boundary conditions in seaice_calc_strainrates
173        (changes results for no_slip)
174      - seaice_lsr.F: make interpolation of eta dependent on boundaries
175      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
176      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
177        stress formulation and no-slip boundary conditions
178    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
179      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
180    o pkg/seaice: a first HSALT time stepping equation has been checked in
181    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
182      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
183      without requiring DO-IF statements
184    o pkg/thsice:
185      use continuous power-law function for partition of energy between lateral
186      melting/freezing and thinning/thickening ; old code using step function
187      still available with #undef THSICE_FRACEN_POWERLAW
188      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
189    o testreport: change AD testing : check against results/output_adm.txt
190      using same scripts as for forward test.
191    
192    checkpoint59g
193    o adjoint testing: in preparation for changing testreport:
194      - output format: cost and grad written on separated lines
195      - ad output results in directory "results" (instead of "results_ad")
196    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
197    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
198    o pkg/ecco: allow user defined cost function contributions
199    o testreport:
200      Allow to choose (per experiment) the list of tested output variables
201       and the main variable (used to issue a pass/FAIL ) ;
202      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
203      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
204      Also modify printing of summary:
205       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
206       b) echo the list of tested variables in the individual summary.txt of
207          each experiment.
208    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
209      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
210      (but still depend on the tile decompostion of the domain).
211    o pkg/seaice: change a discretization detail to make the B-grid code
212      "more symmetric". This change is likely to remove all "ridges/leads" that
213      where quasi-aligned with the grid in B-grid solutions. It may also be
214      the solution to the stress coupling issues with the B-grid.
215    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
216      remove .cvsignore from input dir. (since testreport no longer run here).
217    o pkg/thsice:
218     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
219     - fix reshaping of sea-ice just after advection:
220       melt all the ice only if ice-volume is too small.
221     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
222       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
223     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
224    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
225      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
226    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
227      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
228      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
229      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
230      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
231      -> update output.txt
232    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
233     this affects truncation error: -> update output.txt of exp:
234      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
235      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
236    
237    checkpoint59f
238    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
239    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
240      a bounded range (in forward mode)
241    o pkg/ecco, ctrl, autodiff and mom_common:
242     internal parameter controls, completements of implementations
243    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
244    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
245      (not seem any difference in testing results).
246    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
247       at face corners.
248    o pkg/generic_advdiff:
249     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
250      loop range indices for computing vertical advection tendency
251      and do the calculation in the interior only (no overlap) ;
252      for now, only implemented for SOM advection (to save CPU time).
253     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
254    o exch2 adjoint
255      First set of changes:
256      - add exch2 hand-written adjoint templates
257      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
258        This will require cleanup in pkg/autodiff/*.F
259        (changed routines currently kept separate in verif. code/)
260      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
261        that used to hide exch2 or cubed-sphere specific code
262        (commented via 'cph-exch2')
263    o pkg/seaice
264      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
265    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
266       output of global_ocean.cs32x15.thsice .
267    
268    checkpoint59e
269    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
270      for B-grid vector (not yet tested) and C-grid vector (<- only used
271      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
272    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
273      (#ifdef ALLOW_SALT_PLUME)
274    o gather_2d/scatter_2d: removed halo regions
275    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
276      scheme and the corresponding test case (under front_relax dir). For now,
277      only available with Skew-flux form and not yet tested in realistic set-up.
278      adjoint: store directives updated, but gradient checks deteriorated,
279      so maybe GM/Redi adjoint is now broken.
280    o seaice adjoint
281      * add AREA, HEFF, HSNOW as control variable
282        (should not change lab_sea results)
283      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
284    o pkg/seaice:
285      * added computation of saltFlux in seaice_growth;
286        For time being, sea ice salinity is assumed constant
287        contribution of snow flooding to freshening of sea ice is neglected.
288        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
289        defaults to 0.0 in order to maintain backward compatibility.
290        Typical values for SEAICE_salinity are 4 to 10 g/kg.
291      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
292      * added SEAICE_availHeatFrac, which specifies fraction of surface level
293        heat content used to melt or grow ice
294      * commented out cap of HICE: it helps keep ice thinner
295      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
296      * applied OBCS T/S mask to HEFFM sea ice mask
297    
298    checkpoint59d
299    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
300     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
301     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
302    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
303     and change default value of parameter "GM_Small_Number";
304     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
305       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
306       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
307    o pkg/ecco: cost function when applying pkg/smooth to controls
308    o pkg/ctrl: add forcingPrecond run time parameter
309    o pkg/seaice:
310     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
311     - fix bug in metric terms of u-equation in LSR solver (implicit part),
312       changes verification/lab_sea
313     - rearrange implicit part of u-equation in LSR solver to make it easier to
314       read, understand, and debug. This causes changes at the truncation level.
315     - fix (serious) bug in the boundary conditions (sign error in the implicit
316       part) of the LSR solver. Changes all LSR results.
317     - fixed problem with HSNOW initialization to avoid thick snow when AREA
318       is initilized with small values - does not change lab_sea results.
319     - added HsnowFile initialization capability
320    o pkg/smooth: addition to model/src and pkg/ctrl so allow
321     initialization of pkg/smooth and application to control vector
322    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
323    o dependencies: pkg/profiles requires pkg/cal
324    o pkg/profiles:
325     - added option ALLOW_PROFILES_GENERICGRID
326         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
327         that interpolation information (grid points and coefficients) is provided
328         within the netcdf input files.
329         -> sample matlab scripts can be found in MITgcm_contrib/gael
330         that allow you to prepare netcdf input files.
331     - also modified: cleaner include statements, cleaner error print statements,
332       cleaner stops when error, and more tests of the netcdf input files consistency.
333    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
334    o pkg/seaice:
335     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
336       requires a new routine: seaice_diagnostics_fill.F
337     - make sure that seaice does not move if not forced (pressure replacement
338       method, Hibler and Ip, 1995), changes results
339     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
340     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
341       It is turned off by default (=-1.), because it changes the results.
342     - make it possible to read AREA from a file, too.
343    
344    checkpoint59c
345    o add S/R and diagnostics for oceanic mixed-layer depth
346    o move GMRedi call after all vertical mixing schemes (including KPP)
347    o pkg/thsice:
348     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
349      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
350    o pkg/obcs:
351     - bug fix for balance code
352    o pkg/seaice:
353      - allow values of SEAICE_elasticParm > 1
354      - add new parameter SEAICE_evpTauRelax as an alternative
355        to SEAICE_elasticParm
356      - make lsr boundary conditions free slip (by default), changes result
357      - add code for no slip boundary conditions for lsr
358      - set minimum of zeta to zero (and not 4e8) (changes results)
359      - add a cap on AREA after advecting AREA if seaice_growth is not called
360    o change calculation of Visbeck K:
361      - no longer depend on tapering scheme; instead, compute slope (limited
362        by GM_maxSlope). this is equivalent to what was comuted before with
363        clipping or linear tappering.
364      - fix vertical averaging (wrong by 1/2 level)
365      - leave the old version (but will not be maintained) within
366        #ifdef OLD_VISBECK_CALC / #endif
367      - update output of exp. ideal_2D_oce
368    o change error catch in calc_r_star to improve vectorization
369    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
370      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
371    o adjoint:
372      Re-organized adjoint checkpointing according to Matt Mazloff
373      (but with modifs/completions/cleanups)
374      Storing is now bundled into large arrays to optimized I/O
375      (and second step in cleanup of the_main_loop)
376    
377    checkpoint59b
378    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
379      - export/import (between ocean & coupler) fields needed for ocean DIC.
380    o pkg/seaice:
381      - get rid of three more exchanges seaice_calc_viscosities (required
382        different loop boundaries in seaice_lsr and seaice_ocean_stress)
383      - bug fix in seaice_ocean_stress (update of lab_sea required)
384      - reduce loop boundaries to necessary minimum also in seaice_evp
385      - go back to the old way of computing deltaC/Z as the adjoint likes that
386        better
387    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
388      passive tracer to an Age Tracer) + update output.txt
389    o pkg/exf:
390      - implement A-grid / C-grid selection for wind-stress input files.
391      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
392      for now, in exf_bulk_largeyeager04.F only :
393      - change implementation for case where windspeed + 2. components wind-stress
394        are read-in. AND use rhoConstFresh to convert evap.
395    o pkg/seaice:
396      - use correct EXCH_UV for wind-forcing (on A-grid).
397      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
398        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
399    o pkg/exf:
400      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
401      EXF_INTERPOLATION:
402      - merge global_with_exf/code version of exf_interp_read.F
403        to the main code ;
404      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
405        reading the file ; Important: This options needs to be defined to recover
406        previous code.
407        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
408      - no longer loose real*8 precision along the way when using exf_iprec=64.
409    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
410      - change discretisation of evp-solver in order to avoid another exchange
411        (changes lab_sea) and clean up a little
412      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
413        help the adjoint (this also changes the results slightly)
414      - add a few "_d 0" where they had been missing in seaice_evp.F
415      - cleaning up: remove unused seaice_calc_rhs.F
416    o pkg/exf: some cleaning-up:
417      - change various "constants" into runtime parameters
418      - cleaned-up Large&Yeager04 routine which should eventually
419        replace exf_bulkformulae.F (changed names of S/R and CPP)
420        and merged various ALLOW_ATM_WIND options
421     only used with thsice pkg (in thsice_get_exf.F):
422      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
423        which are used when useStabilityFct_overIce=TRUE (= the default)
424      - change default values of ice & snow emissivity and scale downward LW
425        by ice & snow emissivity.
426    o pkg/thsice:
427     fix few little problems, in thsice_calc_thickn.F:
428      - growth vertically (and not laterally) if iceFrac == iceMaskMax
429      - melt only laterally if hIce < hThinIce (as the comments say)
430      and in thsice_extend.F:
431      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
432      - start to form ice as soon as the minimum ice-volume is reachable.
433     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
434      and cpl_aim+ocn
435    o pkg/kpp
436     - move computation of surface related input fields to KPP into a new
437       subroutine kpp_forcing_surf.F
438     - remove wrong (within bi,bj loops) EXCH calls.
439     - little cleaning (add argument myThid in last position, cvs header ...)
440     - for now, fix conservation problem by exchanging KPPviscAz (may not
441       be the best fix)
442    o pkg/seaice
443     - check for inconsistent evp parameter/cpp-flag combination
444     - remove leftover errIO flat for obsolete name list error handling
445    o OpenAD
446     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
447    
448    checkpoint59a
449    o pkg/seaice: some parameter clarifications and a little bit of clean up
450    o pkg/thsice: rename run-time parameters:
451       himin       -> hIceMin
452       himin0      -> hThinIce
453       hihig       -> hThickIce
454       i0          -> i0swFrac
455       transCoef   -> bMeltCoef
456       frac_energy -> fracMelting
457      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
458       with default values (for now) that do not change the results.
459      remove old version of thsice vars advection in pkg/seaice.
460    o in FFIELDS.h:
461      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
462      - make pLoad & sIceLoad always available (but still only used if
463         ATMOSPHERIC_LOADING is #define).
464    o pkg/kpp: replaced _KPP_RL with _RL
465    o bug fixes for vertical diffusivity computations when both KPP and
466        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
467        are no longer updating the vertical diffusivity array
468        (passed as argument) but are (re-) setting those arrays.
469    o pkg/seaice: fix bug in evp solver, while doing that
470      - change (improve?) discretization of stress computations for both
471        cgrid-lsr and evp solver
472      - add a new routine to compute strain rates
473      - the above changes lab_sea results
474      - add no slip conditions for evp solver (off by default), lsr-version
475        may follow
476      - fix exchange for shear at Z-points (does not change lab_sea)
477      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
478        (to force the user to pick a time step since there is not "safe" way
479        of choosing it)
480      - add principal stress diagnostics
481      - rearrange fields for evp a little to avoid having to call a: too many
482        exchanges and b: exchanges for stress trensor components which we do
483        not have.
484      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
485        of evp, complete rewrite for lsr case (latter is does not yet work
486        in all cases)
487    o pkg/kpp: add code to have mixing in shelf ice caverns
488      - add myThid to all kpp routines (long overdue)
489    
490    checkpoint59
491    o pkg/exf:
492      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
493        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
494      - move exf header files from lower_case.h to UPPER_CASE.h ;
495        add missing cvs Header & Name
496      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
497      - add namelist param. selectStressGridPosition, exf_monFreq
498      - retire many _CLIM routines, and remove data.exf_clim
499        + params moved to data.exf
500        + climsst, climsss now handled by exf_set_gen, i.e.
501          climss?period=0 refers to constant field,
502          climss?period=-12 to monthly forcing
503      - split up namelists in data.exf
504    o pkg/seaice:
505      - remove seaice_exch and seaice_exch_uv
506      - remove superfluous exchange of theta
507      - add myThid to seaice_budget_ocean/ice
508      - add new interface for atmospheric wind forcing (C-grid only)
509        + new routine
510        + two new field (taux, tauy for stress over ice)
511        + removed one global field (DAIRN) for C-grid case only
512    o pkg/thsise
513      - 2nd set of modifs for thsice adjoint in conjunction with exf
514    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
515    
516    checkpoint58y_post
517    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
518      vertical diffusivity, similar to that in MOM4; turned on using
519      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
520      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
521    o Added capability for 3D specification of background vertical diffusion
522      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
523      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
524      "data" file that contains the 3D vertical diffusivity coefficients.
525    o ice dynamics (pkg/seaice) with thsice thermodynamics:
526      - add code within pkg thsice to advect & diffuse sea-ice fields
527      similar to (and will replace) what has been added in  seaice_advdiff.F,
528      but: - conserving Mass, Heat & Salt.
529           - better when using non-linear advection scheme (not yet fully tested)
530           - can also be used in atmospheric set-up (for now, only the diffusion).
531    
532    checkpoint58x_post
533    o IO option for global-file compact format:
534      - add options when generating topology (utils/exch2/matlab-topology-generator)
535      - add I/O capability (pkg/mdsio).
536      - adapt utils/matlab/rdmds.m to read this format.
537      for now long-line format not yet supported by pkg/mdsio (& exch2).
538    o shelfice: add a few diagnostics
539    
540    checkpoint58w_post
541    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
542      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
543      (and replace horiVertRatio in NH code).
544      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
545                         and tutorial_plume_on_slope (sensitive to truncation)
546    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
547      directly to drive seaice model (C-grid only)
548    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
549     - reintroduce computation of wind from stress,
550     - compute tau (in exf_bulkformulae.F) from windstress averaged to
551       mass points to avoid tau = 0
552     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
553    o rdmnc.m: make it work with "global" files created with gluemnc
554    o rdmnc.m : some improvements in dealing with singleton dimension
555      (tested on all testreport mnc output files).
556    o genmake2: disable pkg/profiles if netcdf test fails.
557    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
558    o move call to cal_readparms up to make calendar parameters/variable available
559      to all packages
560    
561    checkpoint58v_post
562    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
563      useDynP_inEos_Zc tested.
564    o pkg/exf: changes to properly interpolate/mask/scale initial fields
565    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
566      and portions thereof.  See read_cs.txt for description and examples.
567    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
568      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
569      following the great-circle arc between those 2 points.
570    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
571      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
572    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
573     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
574     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
575     - still needs work (not working with some options ; efficiency to improve)
576       and serious testing.
577     - use this scheme for temperature & salinity in 2 advection test exp.:
578       advect_xy & advect_xz, respectively.
579    
580    checkpoint58u_post
581    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
582    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
583    o testreport: add option "-skipdir" to skip some test.
584    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
585      momentum calculation.
586    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
587    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
588      remove checkpoint.F and the_correction_step.F (no longer used);
589      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
590    o add option (linFSConserveTr) to correct for tracer source/sink due to
591      Linear Free surface
592    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
593    o pkg/thsice: fix reading mnc-pickups
594    
595    checkpoint58t_post
596    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
597    o pkg/mdsio:
598     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
599       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
600       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
601     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
602     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
603       either MDS_READ_FIELD or MDS_WRITE_FIELD )
604     - new S/R (to replace MDSWRITEMETA), which allows to write more
605       informations (variable names, time ...) to meta files.
606     - modify rdmds.m to give back the meta file content.
607    o pkg/diagnostics: change vertical interpolation to be safer, and more
608       flexible (define p-levels to interpolate to in data.diagnostics);
609      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
610       diagnostic pointer.
611    o pkg/seaice: more cleaning up of seaice_growth, added many comments
612    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
613    o fix multi-category seaice:
614     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
615       SEAICE_MULTICATEGORY
616     - fix short wave heat flux
617    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
618       and allow to use EVP solver. Change forward lab_sea: test both EVP
619       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
620    o Initial check-in of lab_sea adjoint
621      (very similar to natl_box_adjoint/code_seaice)
622      * used C-grid and EVP solver
623      * used KPP, GM/Redi
624      * uses inAdExact=.TRUE.
625      * gradient checks fail for both ADM and TLM
626        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
627        f.d. gradients actually seem more problematic than ADM, TLM gradients;
628        issue is related to forward mismatch between g77 an ifort
629    o pkg/seaice: overhaul of thermodynamics
630     - growth.F and groatb.F are replaced by new routine seaice_growth.F
631     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
632     - move a few global fields out of SEAICE.h into seaice_growth.F and
633       make them 2D (FICE/QNETO/ ...)
634     - remove FO (it is the same as QNETO)
635     - introduce a few local fields to avoid modifying external fields such
636       as atemp, etc.
637    
638    checkpoint58s_post
639    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
640      changed exf_set_gen.F so that
641        genperiod=0 means input file is one time-constant field and
642        genperiod=-12 means input file contains 12 monthly means
643    o CG2D: use pre-computed solver main-diagonal (stored in common block);
644      this affects truncation error ; generate new output file for exp. which
645      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
646        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
647        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
648        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
649        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
650        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
651    o start implementation of deep-atmosphere and anelastic formulation
652    o verification: remove 2nd copy of input files and use script "prepare_run"
653      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
654    o mom_common/vecinv/fluxform: fix a few initialisation isssues
655    o profiles: fix for multithreaded case
656    
657    o diagnostics: rename few diags:
658      s/'PRESSURE'/'RCENTER '/g
659      s/'TICE    '/'oceFreez'/g
660      s/'TAUX    '/'oceTAUX '/g
661      s/'TAUY    '/'oceTAUY '/g
662      s/'SWFLUX  '/'oceQsw  '/g
663      s/DIFx/DFxE/g
664      s/DIFy/DFyE/g
665      and add few ocean-forcing diagnostics:
666      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
667    o modifications to pkg/seaice/growth.F and budget.F, which change results of
668      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
669      as actual snow thickness.  It now refers everywhere to effective snow
670      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
671    
672    checkpoint58r_post
673    o modifications to pkg/seaice/growth.F, which change results of
674      lab_sea experiment: fixes pertain to melting snow over open water, to
675      masking EVAP under sea ice, and to using the correct AREA variable for
676      computations of EVAP, PRECIP, HSNOW, and GHEFF
677    o add ability to read bathy, salt, and theta using MNC (off by def)
678    o add flooding algorithm and advection of HSNOW for pkg/seaice;
679      both are turned off by default and do no change any results
680    o seaice advection with pkg/thsice: a step toward the use of non-linear
681      advection scheme, but #ifdef or commented out for now (requires more EXCH).
682    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
683      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
684      in natl_box (affects results @ truncation level: update output.txt)
685    o multi-threading and IO:
686      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
687      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
688        (needed to work with SingleCpuIO): tested in all verif. exp.
689    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
690      affects the results (but none of the verification test uses this scheme).
691    o Adding some pkg/diagnostics capability to pkg/seaice
692      (will certainly be subject to changes)
693    o ctrl: adding new control variables:
694      lwflux, lwdown, evap, snowprecip, apressure, runoff
695    
696    checkpoint58q_post
697    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
698      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
699      high_res_cube configuration by 4% on Columbia.
700    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
701      add (in global_with_exf/code) a version of EXF_INTERP_READ without
702      dynamical allocation (seems to work in multi-threaded).
703    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
704      single CPU io) so that TAF does not have to see EESUPPORT.h
705    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
706    
707    checkpoint58p_post
708    o obcs: stop if obcs is used with useCDscheme = .true.
709    o shelfice:
710     - fix a sign error so that no slip at shelfice interface works
711     - remove stop for combination non-hydrostatic code and shelfice. That does
712       not mean, that the results are correct, but at least they are numerically
713       stable
714    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
715    o added adjoint exch routined for all exch*3d* routines
716      and updated flow directives
717    
718    checkpoint58o_post
719    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
720      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
721    o change controling S/R for writing pickup file (new S/R do_write_pickup)
722      and clean-up reading/writing of pickup files.
723    o fix local version of read/write pickup (NH part) in rotating_tank/code
724    o simplify EXCH interface:
725     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
726     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
727    o added the regrid package
728    o shelfice:
729     - add a simple boundary layer scheme to reduce noise
730     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
731    
732    checkpoint58n_post
733    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
734       local variable (not in common block).
735    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
736      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
737      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
738        to work with SingleCpuIO.
739    o add "_d 0" to real constant of pkg/cfc subroutines ;
740       update exp. cfc_exemple & tutorial_cfc_offline output files.
741    o multi-threading and IO:
742      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
743        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
744      - barrier before and after reading.
745      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
746      - avoid using MDS_WRITELOCAL for LAND pkg output.
747      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
748        common-block variables ; Allows multi-threading with master-thread IO.
749    o change default MAX_NO_THREADS from 32 to 4 ;
750      and stop cleanly when MAX_NO_THREADS is too small.
751    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
752    
753    checkpoint58m_post
754    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
755       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
756    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
757       keep global_ocean.90x40x15 (for AD testing) with former secondary test
758       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
759    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
760        add MITgcm_tutorials (= code + all the tutorials)
761    o ecco, option to compute cost for total ssh (mean+anom)
762    o consistent with addition of ptracer and ssh in pkg/profiles
763    o profiles: adding ptracer and ssh
764    o testreport: change multi-test output-file name
765      (from output.txt.{name} to output.{name}.txt)
766    o profiles: now ok for mutli-tiles case
767    o seaice: add 4 parameters for different advection schemes for area,
768      (effective) seaice thickness, enthalphy, and snow height. Their default
769      is the standard parameter SEAICEadvScheme
770    o calc_gw:
771     - add cosFacU in zonal viscous flux (harmonic.visc.).
772     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
773       of tutorial_plume_on_slope.
774    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
775    o calc_gw: true flux-form, account for horizontal grid spacing.
776      update rotating_tank results, but not plume_on_slope (affected at
777      truncation level, 11 digits).
778    
779    checkpoint58l_post
780    o calc_gw:
781     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
782     - remove side-drag for now (need to fix it); update plume_on_slope results.
783     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
784    o commit code to make SST/SSS weights spatially variable
785      (based on either variable in-situ or variable initial T/S weights)
786    o pkg/ecco:
787      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
788        now based on horizontally varying weights wthetaLev, wsaltLev
789      * cost_averagesflags now returns year indices in addition to day, month
790      * sflux balance is performed on annual basis
791        (sflxumm, sfluxmm2, bal_sfluxmm)
792      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
793        including separate counting and multipliers
794    o pkg/rbcs
795      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
796    
797    checkpoint58k_post
798    o testreport:
799     - always build in dir. "build" (if not there, mkdir build instead of building
800       & running in input)
801     - run in dir run (if it exists), in build otherwise.
802     - call prepare_run (if input/prepare_run exists)
803     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
804    o pkg/exf modifications to interpolation and rotation routines for more
805       reasonable treatment of North Pole singularity: for tracers North Pole
806       value is set to northernmost zonal-mean value, for zonal velocity it is
807       set to zero, and for meridional velocity it is set to northernmost value.
808    o pkg/exf/exf_check_range.F
809     - add tile index to diagnostics and move stop statement to the very
810       end of the routine.
811    o pkg/diagnostics: (diagnostics_main_init.F)
812      define title of isomorphic variables according to the current config.
813    o pkg/thsice with pkg/seaice dynamics:
814    - fix domain of computation (interior only, required for exf) and do exchanges
815    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
816    o towards a standard way of dealing with multi-threading in MONITOR
817      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
818    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
819       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
820    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
821    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
822    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
823       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
824    o tracer advection:
825     - clean-up and simplify calc_common_factors.F
826     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
827       advection subroutine (but still not used within DST advection S/R)
828    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
829    
830    checkpoint58j_post
831    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
832      from file (collects calls previously in FORWARD_STEP)
833    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
834    o adjoint store dir. adjusted accordingly
835    o genmake2
836      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
837    
838    checkpoint58i_post
839    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
840      on wind stress (SEAICEstressFactor defaults to 1.)
841    o Total number of Timers is finite (<=40): comment out 2 non-essential one
842      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
843    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
844      on CS-grid: no longer loosing mass.
845    o exf & curvilinear-grid: no longer modify longitude xC & xG.
846    o pkg/ggl90: fix sloppy output and fix a bug
847    o pkg/seaice: added SEAICEuseEVPpickup parameter
848      - Set to false in order to start EVP solver with
849        non-EVP pickup files when using SEAICEuseEVP
850      - fix sign error in diffusion in seaice_calc_rhs
851    
852    checkpoint58h_post
853    * Modifications for bottom topography control
854      o replace hFacC by _hFacC at various places
855      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
856      o add non-self-adjoint cg2d_nsa
857      o update autodiff support routines
858      o re-initialise hfac after ctrl_depth_ini
859      o works for 5x5 box, doesnt work for global_ocean.90x40x15
860    * Adding verification for 5x5 box (4-layer) bottom topography control
861    
862    checkpoint58g_post
863    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
864       used for mean seasonal cycle, mean diurnal cycle); add an example
865       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
866    o pkg/ggl90:
867      - add parameter (minimum surface kinetic energy)
868      - fix bug (avoiding division by zero)
869    o couple pkg/thsice to pkg/seaice:
870      - modify advection in seaice to accomodate new scalar fields to be advected
871      - only muliDimAdection scheme work with seaice/thsice
872      - mapping of thsice-variables to seaice-variables, back and forth
873      - does not break the verification experiments, but does not give the
874        desired results either
875    o pkg/seaice
876      - make (default) second order advection a bit less confusing?
877    
878    checkpoint58f_post
879    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
880      to pkg/seaice):
881      - new routines thsice_map_exf and thsice_get_exf provide the interface
882      - add an additional formal parameter to thsice_solve4temp
883    o pkg/exf:
884      - add new fields wspeed, snowprecip (to be able to couple to thsice)
885      - correct Stefan-Boltzmann constant
886      - new parameter for longwave surface emittance
887      - separate some stuff from exf_bulkformulae into new routines  
888        exf_radiation, exf_wind
889      - add new parameters and constants: longwave emissivity for ocean, ice
890        and snow, evaporation parameters over ice
891      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
892        either wind from stress or stress from wind
893    o pkg/thSIce:
894    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
895    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
896       and THSICE_CALC_THICKN
897    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
898    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
899      to make debugging easier.
900    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
901    o pkg/bulk_force:
902      - clean-up comments and parameters ;
903      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
904    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
905      generate new output for test-experiment: aim.5l_cs.thSI
906    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
907      testreport accordingly
908    
909    checkpoint58e_post
910    o SEAICE_CGRID adjoint done
911    o R_STAR adjoint implemented.
912      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
913      * need to sort out init. of h0facc, etc.
914    o Make pkg/profile fully independent of ecco,cost, etc. stuff
915      to be able to use it in pure forward.
916    
917    checkpoint58d_post
918    o upgrade simple test-experiment to tutorial example:
919     step.1: duplicate the experiment and (step.2) will remove the old copy.
920      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
921      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
922      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
923      tutorial_global_oce_biogeo    <- copy of dic_example
924      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
925      tutorial_plume_on_slope       <- copy of plume_on_slope
926      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
927      tutorial_global_oce_optim     <- empty for now (David ?)
928      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
929     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
930    o correct a sign problem in cost_scat.F
931    o obcs and ptracers: fix boundary conditions for advections schemes
932      with larger stencil
933    o thsice adjoint: start
934    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
935      completeness
936    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
937      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
938    o ptracers adjoint:
939      * avoid extensive recomputatations
940      * fix missing re-init. of gptr (missed by TAF)
941    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
942      me to turn off the excessive output to STDOUT that this package produces
943    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
944      and add those terms in Vector-Invariant formulation.
945    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
946      if the control period (xx_hfluxperiod etc) is 0
947    o in profiles pkg, clean routines and fix details
948    o in ecco pkg, reading ssh data:
949      fix problem in case the model does not start at iter0=0
950    o fix mnc-pickup/restart for ptracers
951    o new package prifiles:
952      code to compute profile-based cost by Gael Forget
953      (modifs in ecco, ctrl, autodiff)
954    o Benign bug fix in initialization (spotted by M. Mazloff) of
955      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
956    
957    checkpoint58c_post
958    o adjoint: finish NLFS adjoint and provide reference output in
959      verification/global_ocean.90x40x15/results_ad_nlfs
960    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
961      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
962      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
963      with SEAICE_CGRID defined.
964    o move calendarDumps from "data" to "data.cal" and clean-up the code
965      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
966    o add useEXF & useCAL flags (for now, set in hard-coded way)
967    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
968      (were missing in NH mode, and wrong in quasihydrostatic mode).
969      waiting for Chris updated version of calc_gw to add those CALLs.
970    o fix bug in quasihydrostatic S/R ;
971      add a test for this option: global_ocean.90x40x15.qshyd
972    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
973      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
974    o add on/off flag useOffLine for package OFFLINE
975    o seaice:
976      - modify advection so that it works also on the C-grid
977      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
978        problem in multi-tile runs with C-grid
979      - add flags for clipping ice velocities and/or masking solver forcing
980      - fix drag (ocean on ice) formulation and a bug that caused noise in the
981        C-grid solver
982      - added a few comments to seaice_diffusion.F
983      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
984        are now exclusive)
985      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
986        required re-ordering the code a little:
987       + make DAIRN global variable (defined in SEAICE)
988       + move computation of the viscosities eta and zeta into a new separate
989         routine (because I need to recompute them in seaice_ocean_stress.F)
990    
991    checkpoint58b_post
992    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
993      update output.txt of exp. aim.5l_cs.thSI
994    o various mnc cleanups and improvements:
995      + shrink lookup tables by factor of ~4
996      + better error reporting when running out of lookup space
997      + able to handle longer path/file names (up to 500 chars)
998    o adjoint:
999      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1000      - TBD: "hidden" mom_vecinv recomp. in dynamics
1001    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1002     (allow to differentiate between forcing components using new integer flags:
1003      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1004     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1005    o ecco
1006      - enable trend removal from SSH anomaly obs.
1007    o adjoint
1008      - a fix for PmEpR when #undef EXACT_CONSERV
1009      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1010      - try to fix "hidden" recomp. in forward_step for NLFS
1011        (NLFS seems broken sometimes after I checked it in)
1012    o seaice:
1013     - add c-grid version of the dynamic solver:
1014       + three new routines that are the c-grid substitute lsr, dynsolver
1015         and ostres
1016       + put a few fields that were local to dynsolver into global common
1017         blocks, so that I can move the computation of stresses etc into
1018         seaice_lsr (saves coding but may break the adjoint).
1019     - replace more hardwired parameters by runtime parameters
1020     - add ice masks that mask the rhs of the implicit solvers where there
1021       is no ice (commented out in seaice_dynsolver, because i am not sure
1022       if this works properly), eventually this should replace the clipping
1023       of ice velocities in seaice_dynsolver to +/-40cm/s.
1024    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1025      include it only where its needed
1026    o move balancing of fluxes before the call of external_forcing_surf
1027    o seaice:
1028      - correct units of turning angles (now they are really in degrees)
1029      - move computation of GWATX/Y out of main routine into dynsolver
1030      - initialize GWATX/Y in seaice_init
1031    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1032      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1033    o seaice: add runtime flags for turning angles (default to zero)
1034    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1035      and trend from exf forcing and ctrl control adjustments
1036    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1037      (since checkpoint57x_post)
1038    o change the default rotation period to 86164.s = the Earth rotation
1039    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1040      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1041    o seaice advection: add code for choosing between the default (2nd order
1042      central differences) and multiDim advection schemes provided by
1043      pkg/generic_advdiff
1044    o seaice:
1045      - removed all references to SEAICE_GRID.h fields from
1046        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1047        (cubed-sphere configuration will change a little)
1048      - grid computations in seaice_init are obsolete now.
1049      - cleaned up code a little so that is easier to read (hopefully).
1050      - added new (better?) discretizations of default advection and diffusion
1051        (turn on with SEAICEuseFluxForm)
1052      - replace 1 in 3d global fields by kSurface in growth.F
1053      
1054    checkpoint58a_post
1055    o seaice:
1056      - bug fix in advect.F
1057    o shelfice:
1058      - separate shelfice load anomaly from pload (breaks with time
1059        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1060        Its default is 0., but it may be computed more cleverly from (unknown)
1061        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1062        done offline. A good approximation of the pressure load anomaly is
1063        necessary to avoid large initial adjustment processes underneath
1064        deep-reaching shelfice.
1065      - small fix in ISOMIP shelfice_thermodynamics
1066      - add more sophisticated thermodynamics of Hellmer (1989), this is
1067        now the default
1068      - give a few constants more intuitive names
1069    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1070      if bulk formulae are used in long integration (especially EmPmR). Turn
1071      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1072      if balancePrintMean, the imbalance that is substracted is printed to
1073      STDOUT.
1074    o fix bug (typo) in obcs_apply_eta.F
1075    o add a new package shelfice which enables us to model the circulation
1076      underneath shelf-ice with draughts of hundreds of meters.
1077     - works
1078     - to do: + include improved thermodynamics
1079              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1080                instead of new field kTopC
1081              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1082                instead of new field R_shelfIce and new code in ini_depth.F
1083                and ini_mask_etc.F?
1084              + adjust vertical mixing schemes?
1085    o seaice pkg:
1086     - add a cpp-flag to include a simple formula for a salinity dependent
1087       freezing point of sea water at the surface
1088     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1089       meridional stresses are now different (and hopefully correct)
1090    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1091       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1092       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1093    o pkg/diagnostics: add options and parameters for regional-statistics
1094       diagnostics ; define regions by reading a region-mask from a file
1095       (might add other options later)
1096    o pkg/bulk_force:
1097     - add option and parameters to use AIM surface-flux formulae.
1098     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1099       others forcing fields (defined in PARM05, parameter file "data") are loaded
1100       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1101     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1102     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1103     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1104       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1105     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1106    
1107    checkpoint58
1108    o add "--embed-source" option to genmake2 which, when the supporting
1109      tools can be compiled (as determined by genmake2) will turn on the
1110      embed_files package which then embeds the entire MITgcm source code
1111      (*.[fFhc] + Makefile) used for the build within the executable
1112      - requested by CNH but off by default
1113      - adds a paltry <9MB to the mitgcmuv executable in most cases
1114      - only writes the output when useEMBEDSRC in eedata is true
1115    o clean up 3-dim. relaxation codes:
1116      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1117      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1118      * Thanks to Tom Haine for testing!
1119    
1120    checkpoint57z_post
1121    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1122      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1123    o fix the pickup behavior for obcs in combination with ptracers
1124    o fix a bug in ptracers_external_fields_load
1125    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1126      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1127    o transfered surface NH pressure to eta field (if exactConserv).
1128    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1129         and update lab_sea output.txt file.
1130    o completing 3-dim. relaxation code: additional term
1131         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1132      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1133      * At compile time, in "EXF_OPTIONS.h" set
1134          #define  ALLOW_CLIMTEMP_RELAXATION
1135          #define  ALLOW_CLIMSALT_RELAXATION
1136      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1137          tauThetaClimRelax3Dim = 15552000.0,
1138          tauSaltClimRelax3Dim  = 15552000.0,
1139      * 3 cases:
1140          1) Use a constant-in-time 3-dim. field
1141          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1142          3) Real-time relax. to time-evolving prescribed field
1143    o Adding Laplacian-type smoothness constraint on
1144      initial and boundary (forcing) controls (ic, bc)
1145      * enable at compile-time via
1146        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1147      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1148      * Absolute scale somewhat unclear so far
1149      * no area weighting was included since no other cost term does so far
1150    
1151    checkpoint57y_post
1152    First step for a NLFS adjoint
1153    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1154    o new init. routines for calc_r_star, calc_surf_dr
1155    o still need to deal with ini_masks_etc
1156    o testreport seemed happy
1157    checkpoint57y_pre
1158    
1159    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1160    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1161    o add new offset feature to offline pkg (plus minor cleanup)
1162    o cfc fixes for final year of integration
1163    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1164      be in GCHEM_OPTIONS).
1165    
1166    checkpoint57x_post
1167    o fix testreport Pb in multiple test experiment.
1168    o cleanup our namelist syntax in verification:
1169      - make it more F95 standards compliant (some work still needed)
1170      - allows the vast majority of our tests to work with gfortran
1171    o Non-Hydrostatic:
1172     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1173     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1174    o Allow to apply AB on T,S rather than on AB(gT,gS):
1175     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1176     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1177       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1178     - need a "clever" read_pickup to restart from the other AB formulation
1179    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1180    o remove some unused variables (reduces number of compiler warnings)
1181    o adjoint
1182      * Disable useVariableViscosity for adjoint for time being
1183        (there are a number of extensive recomputations)
1184      * Initialize certain variables needed for adjoint
1185    
1186    checkpoint57w_post
1187    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1188                 fix the singleCpuIO RS version of MDSWRITEFIELD
1189       and add a WARNING if using globalFiles=T with multi-processors.
1190    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1191      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1192    o tracer advection scheme:
1193      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1194       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1195       was not very convenient).
1196      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1197       (further tests needed for the implicit DST & Flux-Limiter schemes).
1198    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1199      and sRef for convenience, handy, when you want to initialize
1200      ptracers in a large domain with a constant non-zero value. Also,
1201      untangle ptracers_init.F a little.
1202    
1203    checkpoint57v_post
1204    o change dome exp. to use variable viscosity in side-drag terms.
1205    o remove all the files from the cfc_offline test since they are now
1206      incorporated into tutorial_cfc_offline which has been producing
1207      identical results for a few days of testing
1208    o add new parameter: sideDragFactor to enable half-slip-side BC
1209      and change side-drag S/R to use viscosity from mom_calc_visc
1210      (can switch back by setting sideDragFactor=0.); affects results at
1211      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1212       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1213    o vorticity & strain are now computed without masking, to account for
1214      no-slip-side BC in variable viscosity calculation ; mask is applied
1215      anyway later on, before computing advection/coriolis terms.
1216    o modify exp4 to test new obcs support for reading from external files
1217      and for passive tracers
1218    o fix behavior of ptracers_monitor when monitor output is written to a
1219      netcdf-file; still not independent of monitor.F (writes in the same
1220      file).
1221    o change default value of tRef (put a uniform, meaningful value for ocean
1222      & atmos) and initialize sRef (was missing, as Martin mentioned).
1223    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1224      to be proportional to enstrophy dissipation length.  Thus,
1225       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1226      This is now consistent with Smagorinsky and with the manual.
1227    
1228    checkpoint57u_post
1229    o OBCS and PTRACERS: add open boundary support for passive tracers
1230      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1231        OB-values from file; this is not different from the way theta and salinity
1232        are treated
1233      - however, Orlanski-radiation conditions are not supported, and the model
1234        will stop if you use pTracers and Orlanski at the same time.
1235      - beefed up the rountine obcs_external_fields_load: now only those open
1236        boundary values are overwritten with values from files for which there
1237        are really files, otherwise the OB-fields remain untouched. This makes
1238        it possible to use different OBs at different ends of the domain (as
1239        with EXF)
1240    o reduce number of exch calls in shap_filt (s2).
1241    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1242      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1243    
1244    checkpoint57t_post
1245    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1246    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1247      same truncation, independent of the face number: affects affects several
1248      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1249    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1250      note that biharmonic viscosity + no-slip was not tested in any experiment.
1251    o fix bug in non-linear free-surf side-drag ; generate new output for
1252      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1253    o make mnc honor the writeBinaryPrec flag for most kinds of output
1254    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1255    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1256      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1257    o add brackets in multi-terms sum to get same truncation, independent of
1258      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1259      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1260    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1261      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1262      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1263      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1264      Suggested values of viscosity parameters found in mom_calc_visc.
1265      Many new viscosity diagnostics available.
1266    
1267    checkpoint57s_post
1268    o Add clearing-house for viscosity calculations, mom_calc_visc and
1269      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1270      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1271      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1272      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1273      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1274      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1275      ViscAhStrain and viscAhTension are now retired.
1276    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1277    o In response to JMC's bug report, genmake2 now ignores any soft-links
1278      that it finds in the *current* directory when searching for files.
1279      Soft-links found in any other source directories will still work as
1280      they did before.
1281    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1282      a C routine to unlimit the stack size
1283    o mnc-ify pkg/aim snapshot vars
1284    o mnc-ify pkg/land as requested by Daniel
1285    o various changes to mnc including:
1286      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1287      - output can now be grouped so that all files within a group
1288          change the ITER portion of their names in lock-step together
1289      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1290          and works with both EXCH1 and EXCH2 (but needs more testing)
1291      - writing works for all verification test cases w/ g77 on Linux
1292    
1293    checkpoint57r_post
1294    o make MNC variable initialization happen earlier
1295    o add diagnostics for (almost) each term of the momentum Eq.
1296    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1297    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1298    o remove MINIMAL_TAVE_OUTPUT option ;
1299      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1300    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1301      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1302    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1303    o add time-dependent SST, SSS control
1304    o cost terms in ecco/ modularized (new cost_generic.F)
1305    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1306    o new infrastructure for seaice model vs. obs misfits in seaice/
1307      * driver from the_main_loop.F is seaice_cost_driver.F
1308      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1309      * gradient check in Exp. 6a of natl_box_adjoint/
1310    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1311      (see README file)
1312    
1313    checkpoint57q_post
1314    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1315    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1316      - bug was reported by Jean-Michel and Ian Fenty
1317    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1318      update exp. cpl_aim+ocn output.
1319    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1320      Needed for high-res. runs with large global files
1321      to be able to limit tapelev size
1322    o Changed some tests for adjoint:
1323      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1324      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1325      * global_ocean.90x40x15/ back to default 3-level checkpointing
1326    o Modifications to enable scripted COMMON to MODULE conversion
1327      * verification/OpenAD/code/ has necessary scripts and description;
1328      * converts, compiles and runs successfully;
1329    
1330    checkpoint57p_post
1331    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1332    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1333      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1334    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1335    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1336      (was already the case for dissipation with mom_vecinv,
1337       and also the case for grad.PhiHyd when staggered-timeStep)
1338      This will allow to put dissipation out-off the AB time-stepping.
1339     Unfortunately, affects truncation error. Update output of exp. that "fails"
1340      (cg2d matching number) and leave the others for later: front_relax(10),
1341      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1342      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1343    
1344    checkpoint57o_post
1345    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1346      (2) its ready to be documented during the 20050801 DocFest
1347    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1348      for ideal_2D_oce and lab_sea on linux_ia32_g77
1349    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1350      in global1x1_tot/code_seaice_adj to access indices 32, 33
1351      (worth another tag)
1352    
1353    checkpoint57n_post
1354    o adding precip control xx_precip 32
1355    o adding swflux control xx_swflux 33
1356    o Replacing 10 forcing penalty cost routines by 1 generic.
1357    o Implementing partitioning in time-mean and variable adjustment
1358      for atmos. state.
1359    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1360    o in natl_box_adjoint:
1361      * updated exp 1 to 10
1362        (but does not have time-mean vs. variable split results yet)
1363    o updated global1x1/*_seaice_adj/
1364      to incorporate latest changes
1365    o enable useSingleCpuIO for mdsio vector routines
1366      (applies in particular to tapelev I/O)
1367    o removed inefficient K-loop in all active_file*control*.F
1368    
1369    checkpoint57m_post
1370    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1371      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1372    o pkg/exch2: filling of face-corner halo regions is optional
1373      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1374    
1375    checkpoint57l_post
1376     tag before updating tutorials (pre-release-2)
1377    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1378       for output and interpolation of input fields onto model grid)
1379    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1380       Affects results of exp. rotating_tank ; update output.txt.
1381    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1382          and taking the square quantity and/or using a fraction-weight field.
1383    o fix aim_diagnostics_init.F mate numbers.
1384    o add mnc output capability to diagnostics/diagstat and update
1385      our cvsignore files for the ACSII output generated
1386    
1387    checkpoint57k_post
1388    o lab_sea now uses diagnostics package and provides a suite of
1389      new EXF diagnostics output.
1390    
1391    checkpoint57j_post
1392    o exf
1393      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1394        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1395        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1396      * extended diagnostics output
1397        - now includes all EXF variables
1398        - hs, hl moved to common block
1399        - separate S/R for diagnostics, called after ctrl vector is added
1400        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1401        - EXFqnet contains true Qnet (i.e. includes qsw)
1402      * updated verif. lab_sea, global_with_exf
1403      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1404        to ensure that diagnostics sees a true EXFqnet
1405    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1406    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1407      several times with different frequencies.
1408    o mnc-ify the thsice package as requested by Daniel Enderton
1409      - the monitor--MNC output needs work
1410      - many attributes need to be added (most are currently blank)
1411    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1412      - many attributes need to be added (most are currently blank)
1413    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1414    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1415    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1416      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1417         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1418    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1419     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1420    
1421    checkpoint57i_post
1422    o Diagnostics package was changed: diagnostic allocation is now deactivated
1423      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1424    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1425      add 1rst Order upwind vertical Shear.
1426    o add a quick fix for A/B checkpointing in OFFLINE mode
1427    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1428      end-run around the C/Fortran linking horror in eesup/src/timers.F
1429    o added pkg/runclock: allows user to terminate run based on wall clock
1430    o added non-hydrostatic scaling parameter: nh_am2
1431    o pkg/my82: futile attempt to make results compiler-independent by adding
1432      some "_d 0", etc. no effect.
1433    o for mnc output, fill the 'T' coordinate var with myTime and create a
1434      separate 'iter' variable for iteration count
1435    o pkg/diagnostics:
1436      add new capability: output of Global/Regional & per-level statistics ;
1437      tested against monitor output (including land & thSIce) on various exp.
1438    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1439    
1440    checkpoint57h_done
1441      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1442      data.diagnostics, data.gchem, data.ptracers) is done.
1443    
1444    o pkg/diagnostics: prepare for Global/Regional statistics.
1445      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1446    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1447      and rename it: DIFFERENT_MULTIPLE
1448    
1449    checkpoint57h_post
1450    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1451    o pkg/diagnostics: change output frequency, now in seconds (instead
1452      of Nb of iterations). This requires to change data.diagnostics.
1453    checkpoint57h_pre
1454    
1455    o in mnc, let the user create the output dir if both mnc_outdir_date
1456      and mnc_outdir_num are false
1457    o add fflags() to pkg/diagnostics which allows one to specify, on a
1458      per-file basis, the file precision [default behavior is unchanged]
1459    o added diagnostics to pkg/kpp, including computation of mixed layer
1460      depth based on a temperature/density criterion
1461    o updated verification/natl_box to test the new pkg/kpp diagnostics
1462    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1463    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1464    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1465      not mnc -- this mistake was found by JMC and is now corrected
1466    
1467    checkpoint57g_post
1468    o add Adams-Bashforth 3rd Order time stepping:
1469      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1470      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1471    checkpoint57g_pre
1472    
1473    o make lambda[Theta,Salt]ClimRelax spatially varying
1474      (default remains spatially uniform constant based on tau)
1475    o added new control variables
1476      * init. uVel, vVel, etanN
1477      * lambda[Theta,Salt]ClimRelax
1478    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1479      (suggested by G. Forget)
1480    
1481    checkpoint57f_post
1482    o add parameter "baseTime" = model base time = time at iteration zero
1483      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1484      account for baseTime shift
1485    o move Coriolis arrays from PARAMS.h to GRID.h
1486    checkpoint57f_pre
1487    
1488    o mnc-ifying the seaice package
1489    o introduced an alternative length scale calculation for use in the limiting
1490      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1491    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1492    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1493      as well as grad(vort3).  Made it compatible with both approximate form
1494      for the cubed sphere and full form of these gradients.  Added flag
1495      useFullLeith to select between approximate and full form.  
1496    o add "d0" in getcon.F to reduce differences between compilers/platforms
1497      update output.txt of exp. fizhi-gridalt-hs
1498    o change port_rand funtion to allow to set the seed.
1499    o fix obscure MNC bug involving conversion between reals and integers
1500      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1501        new version is now more standards-compliant
1502    o adjoint-related modifications
1503      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1504      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1505      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1506    
1507    checkpoint57e_post
1508    o Adding eddy stress controls a la Ferreira et al.
1509    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1510    
1511    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1512      update output.txt of exp. fizhi-gridalt-hs
1513    o add more "Z" dimensions and associated coordinate vars to MNC
1514    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1515    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1516      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1517      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1518      months and years.  Requires pkg/cal.
1519    o diagnostics: add pickup functionality
1520      - off by default for backwards compatibility
1521      - current version only uses MDSIO -- MNC will be added
1522    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1523    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1524    
1525    checkpoint57d_post
1526    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1527    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1528      output from the diagnostics package
1529    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1530    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1531      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1532    o add coordinate variables to the MNC output from the diagnostics package
1533    o change MNC-flags default value: true when useMNC=TRUE
1534    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1535      the ability (off by default) to read the grid information using MNC
1536    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1537    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1538    o do snap-shot diagnostics at the middle of the time-interval (instead of
1539      at the end).
1540    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1541      new test for AIM with thSIce + slab-ocean
1542    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1543    o move state variable diagnostics to the beginning of the time step ;
1544      (note: still needs some work specially for snap-shot diagnostics)
1545      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1546    
1547    checkpoint57c_post
1548    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1549    o generate new output.txt files on faulks with g77 & the new -ieee option
1550    checkpoint57c_pre
1551    
1552    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1553      update output.txt of exp. global_ocean.90x40x15
1554    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1555      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1556    o add saltFlux(+File) forcing capability with periodicExternalForcing
1557    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1558    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1559    o improvements for the MNC output from DIAGNOSTICS:
1560      - correct handling of the unlimitied dimension
1561      - all dims now have associated coordinate variables
1562      - variables located at U, V, and Corner ("Z") points are now written
1563        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1564        *all* data points are output
1565    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1566    o added pkg/seaice/seaice_monitor.F
1567    o mdsio_readfield.F can now read files visible only to master MPI process.
1568    o pkg/seaice: some test code for ice-modified ocean stress
1569    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1570      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1571      spurious negative numbers for precipitation and humidity.  Will cause
1572      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1573    o pkg/ctrl/
1574      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1575        May be enabled via doPackDiag
1576      *  introduce z-scaling of
1577         + gradient (doZscalePack) and
1578         + control (doZscaleUnpack)
1579    o pkg/mdsio/
1580      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1581      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1582    
1583    checkpoint57b_post
1584    o simplify options in diagnostics_fill arguments (remove weird combinations)
1585    o fix MNC coordinate variables so that they now contain per-face index
1586      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1587      general, EXCH2 grids are only aligned to a "local" coordinate system
1588    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1589    o Implement instantaneous output within pkg diagnostics:
1590      setting a negative frequency in data.diagnostics produces
1591     "snap-shot" output (as opposed to time-average if freq > 0)
1592    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1593      NOTE: change ptracer diagnostics name: use 2 characters to work with
1594            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1595    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1596      becomes the coordinate variable for the 'T' dimension
1597    o add CF-style coordinate variables to MNC
1598      - just a first cut:  numbers are meaningless on the cubesphere and
1599        missing along the T axis but otherwise it works!
1600    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1601    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1602    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1603      this is based directly on what the model compute, so that the content of
1604      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1605    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1606    o clean up build options files for SunOS, in particular
1607      - remove -traditional from xmakedepend
1608      - change -xarch=v9 to -xarch=native for f77
1609      - restore use of make (not gmake)
1610      - add CC=gcc if using g77
1611    o changes per discussion of AM, JMC, & EH3 today:
1612      - move redundant "grid" variables out of "state" -- in preparation of
1613        creating proper CF-style coordinate variables and in recognition
1614        that any/all grid variables can be easily copied (eg. w/NCO) from
1615        the grid files into any of the other NetCDF files
1616      - *always* output grid variables with MDSIO (this will eventually be
1617        changed)
1618      - output MNC grid file if useMNC is true
1619    o every instance of _END_MASTER() has been found and replaced with
1620      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1621      preprocessors
1622    o re-arrange diagnostics pkg initialisation:
1623     - allow each package to extend the available diagnostics list
1624     - add some checking and fix small problems (multi-threaded, ...)
1625     - new S/R diagnostics_fill (replace fill_diagnostics):
1626       look through the short list of active diag. (instead of the long list)
1627       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1628    
1629    checkpoint57a_post
1630    o this set of changes restores TAMC compatibility
1631      tested for global_ocean.90x40x15 adjoint on trough
1632      (what a pain)
1633    
1634    checkpoint57a_pre
1635    o some modifs in tools/build_options for sunos
1636    o call ctrl_pack for ctrl at end for optimcycle=0
1637    
1638    checkpoint57
1639    o add horizontal bi-harmonic viscosity for vertical velocity
1640      - new parameter viscA4W (defaults to viscA4)
1641      - affects only non-hydrostatic code
1642      - to be done: no-slip lateral boundary conditions
1643    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1644    o implement Implicit Vertical advection for pTracers
1645    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1646      (implemented also for implicit vertical diffusion & advection)
1647    o OBCS: extend application of tracer open boundary conditions
1648      to a strip beyond the boundary of width Olx/Oly
1649    o add call monitor to TAF set of required calls (flow directives)
1650      and include in natl_box_adjoint
1651    o untangle a few ifdefs related to cost, ctrl, autodiff
1652      untangel a few ALLOW_ECCO_OPTIMIZATION
1653    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1654      (theta2, salt2 in ecco_cost_weights)
1655    
1656    checkpoint56c_post
1657    o OBCS as control variables
1658      - update ctrl_ad_diff.list, obcs_ad_diff.list
1659      - remove balance of obcs controls from default
1660      - fix index bug nobcs in ctrl_init
1661      - fix dummy fields filen in ctrl_pack
1662      - add dummy weights for obcs
1663    o lsopt: comment out fort.94 output
1664    o optim:
1665      - remove unnecessary header files
1666      - adjusted namelists
1667      - add xerbla.F to Makefile
1668    o exf:
1669      - multiple modifications of exf_check_range
1670      - unit change in exf_init_runoff from [m/year] to [m/s]
1671    o mdsio:
1672      - i/o-vector change debugLevel from debLevA to debLevB
1673    
1674    checkpoint56b_post
1675    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1676      is called from DO_THE_MODEL_IO
1677      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1678      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1679      - clean up PTRACERS_WRITE_TIMEAVE a little
1680    o add another verification experiment that tests both the cfc-pkg and
1681      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1682      reactive tendencies treated inline with regular timestepping
1683    o testreport previously did a lousy job of comparing small numbers, so
1684      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1685      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1686      testreport.
1687    o ptracers_monitor: bug fix for MPI
1688    
1689    checkpoint56a_post
1690    o GCHEM: finish reorganizating the package
1691      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1692        (introduces another 3D-array for each passive tracer, but only if
1693        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1694        gchemTendency is not needed because the timestep is done separately)
1695      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1696      - GCHEM is now---more or less cleanly---separate from PTRACERS
1697      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1698        so clear to me how that should be done in a general way.
1699    o CFC: improve formatting of output in CFC_ATMOS
1700    o PTRACERS:
1701      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1702        that ALL experiments with ptracers enable can be checked. This makes
1703        GCHEM_MONITOR obsolete.
1704      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1705        monitorFreq
1706      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1707    o add PTRACERS (PTR0[1-5]) to testreport output
1708    o exf_check_range:
1709      * default changed to .TRUE.
1710      * will check values for niter0 if debLevA, every timestep if debLevB
1711      * STOP in exf_check_range if 'out of range'
1712      * range chosen generous to allow for potential extema
1713      TBD: a version with stricter range
1714           permitted range would be runtime parameters
1715    o GMredi:
1716      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1717      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1718      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1719    o GCHEM:
1720      - move call to GCHEM_FORCING_SEP, so that it is now called before
1721        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1722      - introduced a useGCHEM runtime flag and applied it everywhere.
1723      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1724        this flag is now only visible within GCHEM-pkg routines.
1725      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1726        be replaced by a 3D array that is computed before thermodynamics; for
1727        this, the tracer ID iTracer had to be included into the parameter list
1728        of ptracers_forcing
1729      - set up forward_step to call gchem_forcing, that will replace
1730        gchem_forcing_int in ptracers_forcing
1731      - cleaning up
1732    o small cleaning of exch2: remove files that are also in eesupp/src
1733    
1734    checkpoint56
1735    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1736    o mnc: cleanup "full" files--fixes out-of-memory problem
1737    o ECCO-GODAE
1738      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1739      * fully merged and updated from SIO code
1740        windstress sign change affects
1741        - exf_inscal_[u/v]stress
1742        - sign of xx_tau[u/v] adjustments
1743        - signs in cost_scat
1744      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1745      * natl_box_adjoint updated and compressed
1746      * 2-level checkpoint switch added
1747        (tested in EXP. 1 of natl_box_adjoint)
1748      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1749    o SVD
1750      * first complete, non-hacked version for SVD calculations
1751      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1752        performed via direct access files admtlm_vector.it????
1753        (via ctrl_[un]pack)
1754      * optimcycle is used for ARPACK iteration counter
1755        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1756      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1757        and add linear transforms where necessary
1758      * controls are initial/final SST, SSS (can be extended; need to check
1759        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1760    o mdsio: filename info to both stderr, stdout
1761    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1762      from sign change
1763    
1764    checkpoint55j_post
1765    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1766      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1767    o add consistent build directories and .cvsignore files to verification
1768    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1769    o make all subroutines 30 or less characters in length for certain older
1770      compilers to work (a thorough search only turns up two routines in
1771      pkg/ptracers)
1772    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1773      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1774    
1775    checkpoint55i_post
1776    o change arrays for total vertical diffusivity (2.D if explicit,
1777      3.D if implicit) ; each ptracer uses its own background value.
1778    o added mnc/NetCDF output capability to ocn_compon_interf
1779      - added bits to verification/cpl_aim+ocn so that it can run on
1780        ITRDA and other clusters without the mpirun "-wd" option
1781    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1782      configuration
1783    o give MNC the ability to create additional files rather than
1784      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1785      - the default is just less than 2GB which is a practical limit
1786        on many systems
1787    o Compute the non-local term using either KPP vertical diffusivity (=default)
1788       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1789    
1790    checkpoint55h_post
1791    o add verification test "vermix"
1792    o remove all the *_ioinc flags and replace with the single global
1793      outputTypesInclusive flag
1794    o allow to set a vertical profile of vertical diffusivity for T & S
1795    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1796    o useMNC moved from data.mnc to data.pkg
1797    
1798    checkpoint55g_post
1799    o Renaming carbon AD experiments to comply with testreport conventions
1800    o Updating adjoint of Held-Suarez hs94.1x64x5
1801    o Fixing directives for non-ECCO forward_step, after ECCO directives
1802      have been fixed to avoid recomp. of do_oceanic_phys
1803      Works well for global_ocean.90x40x15,
1804      but recomp. issue remains for carbon
1805    o Updating adjoint output for natl_box_adjoint after
1806      pkg/ecco has been modified (see taga c55d_post)
1807    
1808    checkpoint55f_post
1809    o rename to timeave_init_fixed
1810    
1811    checkpoint55e_post
1812    o some delicate re-shuffle of store directives to avoid one
1813      extra call of do_oceanic_physics
1814      affects ecco_the_main_loop.F, do_oceanic_physics.F
1815      checkpoint_lev1_directives.h
1816    o NB: this may break global_ocean adjoint temporarily,
1817      but it is clear how to fix it. Will do later, need this now.
1818    
1819    checkpoint55d_post
1820    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1821    o ecco_cost_weights is modified to 1x1 runs
1822    o modifs to allow observations to be read in as
1823      single file or yearly files
1824    o enable to read exf forcing fields as either
1825      single file or yearly files (flag useExfYearlyFields)
1826    checkpoint55d_pre
1827    
1828    o switch between 2-level and 3-level checkpointing
1829    o add ability of MNC to write local and "partial" (eg. 2D slices where
1830      the full 3D field is never actually stored) arrays to NetCDF files
1831      with the correct (that is, the complete multi-dimensional) set of
1832      array indicies
1833      - used in mom_vecinv() to write the diagFreq output
1834      - tested (demonstrated) in verification/aim.5l_cs
1835    o further mnc-ification
1836      - add verification/lab_sea to the list with mnc setups
1837      - fix undefined mnc v-names in cd_code
1838      - add kpp to mnc output (both snapshot and timeave)
1839    o non-hydrostatic code
1840      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1841        in calc_gw.F
1842      - defaults to viscAh
1843      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1844        friction or Leith) in non-hydrostatic mode, as long as there is
1845        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1846    o pkg/cost
1847      extend simple cost functions to treat time mean quantities
1848      (T,U,V) via cost_accumulate_state from cost_tile
1849    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1850        be 2 times larger than the minimum size the advection scheme requires.
1851        now get a perfect conservation of salt in advect_cs test-exp (updated)
1852    o GGL90 (Gaspar's TKE mixed layer)
1853      - add horizontal diffusion of TKE, requires exchanges in
1854        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1855        default. In OPA there is no horizontal diffusion of TKE but the
1856        mixing coefficients are computed from a horizontal average of TKE of
1857        6 points or so. I think that diffusion has a little more physical
1858        justification.
1859      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1860        was in vain)
1861      - mask tke-variable in ggl90_init
1862    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1863    o fix biharmonic diffusion on CS-grid.
1864    o more obcs stuff
1865      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1866        for reading boundary values. This routine is called from
1867        obcs_prescribe_read
1868      - updated obcs_check
1869      - changed sponge layer relaxation parameter units for days to seconds
1870      - turned off sponge layer by default
1871      - changed argument list of OBCS_CALC to myTime+deltaTclock
1872      - fixed about 35 bugs in obcs_external_fields_load
1873    
1874    checkpoint55c_post
1875    o obcs stuff
1876      - new runtime flags useOBCSprescribe, useOBCSbalance
1877      - re-arranged obcs_calc
1878      - moved exf_getobcs to obcs_prescibe_read
1879        obcs_prescibe_read is called after ORLANSKI stuff
1880        and independent of it (executable can contain all).
1881      - updated obcs_check
1882      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1883        These may be necessary only if tangential velocities are
1884        prescribed at OB, not sure, needs testing.
1885    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1886      which simplifies the calls and passes the ifc check-bounds test
1887    
1888    checkpoint55b_post
1889    o add a 2D scalar, Z location, exchange_2 routine.
1890    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1891      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1892      affects advect_cs results (for the wrong reason): update output.txt
1893    o use a more standard discretization for biharmonic viscosity ;
1894     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1895      affects results of dome set-up: update output.txt
1896    o fix gad_advection.F (CubedSphere part), back to version 1.23
1897    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1898    
1899    checkpoint55a_post
1900    o merged code to
1901      * prescribe/read time-dependent open boundaries
1902        (works in conjunction with exf, cal)
1903      * sponge layer code for open boundaries
1904      * each boundary N/S/E/W now has its own CPP option
1905        (healthy for the adjoint)
1906    
1907    checkpoint55
1908    o up-to-date adjoint of previous breaks
1909      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1910      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1911      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1912      - carbon: * remove tr1-related adjoint verification
1913                * add ptracer as control variable
1914    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1915      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1916    
1917    checkpoint54f_post
1918    o in verification/carbin/ remove experiment related to
1919      ALLOW_PASSIVE_TRACER (array tr1 etc)
1920      code_ad/ input_ad/ results_ad
1921    
1922    o add two new packages
1923      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1924        + subject to optimization (memory)
1925      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1926        + subject to reordering (many GOTOs in the original code)
1927        + so far opps is called for every (i,j) point, and then operates in
1928          the vertical; one may want to reorder the scheme in order operate in
1929          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1930          fields)
1931    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1932      - all verification tests compile and run with linux_ia32_g77
1933      - defaults are compatible with current input files--nothing
1934        should change if you were not previously using MNC
1935      - MNC output has been added in numerous places (eg. timeave)
1936        but there are still a few writes not yet do-able with MNC
1937        (this is in progress)
1938      - flags now allow for either/or/both use of MDSIO and MNC and
1939        documentation will soon follow
1940      - numerous small formatting cleanups for ProTeX
1941    o add version info (via BUILD_INFO.h) to MNC and stdout
1942    
1943    checkpoint54e_post
1944    o add two new packages
1945      - pp81 (Packanowski and Philander, 1981), Richardson number and
1946        stratification dependent mixing
1947      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1948      - these scheme operate in a similar manner as KPP (without ghat, of
1949        course), however there is only one diffusivity that is used for both
1950        temperature and salinity (and passive tracers)ç
1951    o add offline package
1952    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1953      provided by Stephanie Dutkiewicz
1954    o genmake2: add ability to search for C compilers and cleanup test output
1955      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1956    
1957    checkpoint54d_post
1958    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1959    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1960      leading to additional shift by 5 days each year of integration
1961       (i.e. leading to considerable offset over the years)
1962    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1963    o start with no AB and no initial filtering (staggerTimeStep):
1964      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1965    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1966      (external loading & cpl import/export stay in forward_step.F)
1967    o update coupling interface to work with new staggerTimeStep
1968    o change MDSIO ptracers_pickup.
1969    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1970    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1971    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1972    
1973    checkpoint54c_post
1974    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1975      this affects (truncation error) output.txt of test-exp:
1976       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1977    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1978    o change Qnet to always be the net heat flux, (+upward).
1979      affects (truncation error) output of natl_box exp.: updated
1980    o define the max number of passive tracers in PTRACERS_SIZE.h
1981    o start to test mnc routinely in exp0
1982    o add sea-ice loading (sIceLoad) as a new forcing field.
1983    
1984    checkpoint54b_post
1985    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1986       impressive on Altix and Opteron systems)
1987    o diagnostics can now write NetCDF files through the mnc package
1988    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1989    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1990    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1991      affects (truncation error) output of lab_sea & natl_box exp.: updated
1992    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1993    
1994    checkpoint54a_post
1995    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1996    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1997    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1998    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1999      + internal_wave (shift in writing cg2d_ini_res)
2000    checkpoint54a_pre
2001    
2002    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2003      - modified verification/lab_sea and natl_box_adjoint accordingly
2004    
2005    checkpoint54
2006    checkpoint53g_post
2007    o prepare splitting of thermodynamics: store convect.counter in common block
2008    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2009      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2010    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2011    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2012    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2013    o restore adjointability
2014    
2015    checkpoint53f_post
2016    o modifications that affect AIM experiment results (update output.txt):
2017      - no advection of S at top interface Nr (pkg/generic_advdiff)
2018      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2019    o AIM pkg:
2020      - include stability function into surf.Flux derivative relative to Tsurf
2021      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2022    
2023    checkpoint53e_post
2024    o merged cylindrical coord configuration
2025    o added rotating_tank experiment
2026    checkpoint53e_pre
2027    
2028    checkpoint53d_post
2029    o faulks upgraded: re-generate output.txt that have changed:
2030       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2031    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2032    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2033    o added Sadourny discretization of Coriolis
2034      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2035      - re-enabled use of omega3 (useAbsVorticity)
2036    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2037      vector-invariant equations
2038      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2039    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2040      hopefully without new bugs
2041      - still to do: biharmonic friction for non-hydrostatic w
2042    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2043    o regenerated output for global_ocean_ebm (using -ieee)
2044    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2045      of mom_common/
2046      - simple re-arrangement of instructions within computing loop
2047    checkpoint53d_pre
2048    
2049    checkpoint53c_post
2050    o new version of coupler for AIM+thSIce and Ocean models
2051     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2052     - land: change Evaporation of snow
2053     - aim with thSIce: fix bug in snow-precip.
2054    o changes to calc_gw.F
2055     - bug fix for w^2 term near the bottom boundary
2056     - (hopefully) improve the lateral slip boundary condtions for use with
2057        partial/looped cells
2058      - because the bug fix changes two verification experiments anyway (exp5
2059        and plume on slope), change the lateral boundary condition from half slip
2060        to the value of no_slip_sides
2061    o ebm package wasnt quite up to the parallel task. Fixed that.
2062    o Adjoint of EBM package + verification
2063      * TLM OK
2064      * ADM not sufficient accuracy yet (needs further testing)
2065    
2066    checkpoint53b_post
2067    o Commiting new energy balance model to repository
2068      * package is pkg/ebm
2069      * verif. is verification/global_ocean_ebm
2070      * references are in ebm_driver.F
2071    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2072    C        Global thermohaline circulation. Part I:
2073    C        Sensitivity to atmospheric moisture transport.
2074    C        J. Climate 12(1), 71-82
2075    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2076    C        Global thermohaline circulation. Part II:
2077    C        Sensitivity with interactive transport.
2078    C        J. Climate 12(1), 83-91
2079    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2080    C        Destabilization of the thermohaline circulation
2081    C        by atmospheric eddy transports.
2082    C        J. Climate 7(12), 1870-1882
2083    o Will need long integration testing.
2084    checkpoint53b_pre
2085    
2086    o created pkg/mom_common in preparation for variable viscosity code
2087    o renamed and split ini_mnc_io
2088    o pkg/land: only liquid water can diffuse or run-off
2089    o AIM using land: soil wetness availability account for snow
2090    o added printMapIncludesZeros to EEPARMS namelist
2091    
2092    checkpoint53a_post
2093    o restore TAMC compatiility for exf_constants.h
2094      (no usage of _d in .h)
2095    o Additional storing in KPP in an attempt to fix
2096      TAMC problem with adjoint of KPP code.
2097      (no success...)
2098      Identical code works fine with TAF.
2099    o Fixed verification/natl_box_adjoint experiments.
2100      Initial conditions for Experiments 4 and 5 are now
2101      set to "SEAICE_initialHEFF=0", which is more reasonable,
2102      and hence gives results closer to that of Experiment 2.
2103      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2104    
2105    checkpoint53
2106    o stable checkpoint with up to date adjoint
2107      TLM tests only run for 1st grdchk at the moment. Its unclear if
2108      this is a code problem or a problem with resetting code for g_
2109      variables that is being autogenerated wrong.
2110      Otherwise:
2111       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2112       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2113         are both still in chaos following their security messes.
2114    
2115    checkpoint52n_post
2116    o various build (mostly genmake2) changes including:
2117      - ability to build/run more easily within Cygwin and MacOS X
2118      - more complicated Makefiles with a stronger dependence on Gnu Make
2119    o pkg/seaice modifications
2120      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2121        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2122        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2123      - changed proxy for geostrophic velocity and updated
2124        verification/lab_sea/results/* accordingly
2125      - removed ADI dynamic solver from pkg/seaice
2126      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2127        they caused a segmentation fault under certain circumstances
2128      - removed unused field WATR
2129    o bug fix in exf-package:
2130      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2131         now reflect that.
2132    o small fixes in the cal-package:
2133      - set reference date to first of January for the 'model'-calendar
2134      - failing of cal_CheckDate in cal_FullDate now actually results in a
2135        warning
2136    o small modifications in exf-package to increase flexibility:
2137      - change climtempfreeze from a constant to a runtime parameter that
2138        is specified in data.exf_clim (default = -1.9)
2139      - introduce runtime parameter windstressmax (default = 2.0) that is
2140        specified in data.exf
2141    o fix in pkg/thsice:
2142      - update Evap (Tsf changes) to be consistent with Latent heat flux
2143      - maintain snow precipitation unchanged (even if Tsf >=0).
2144     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2145    
2146    checkpoint52m_post
2147    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2148      this does not change any of the results, because myIter=0 in swfrac always
2149      lead to jwtype=2 (the default anyway), but the call makes little sense
2150      as a default
2151    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2152    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2153      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2154    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2155    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2156    o extending useSingleCpuIO option to work with new exch2 I/O format
2157      - old-style, missing-tile I/O is still accessible by defining CPP
2158        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2159    o monitor package can write to NetCDF files and/or STDOUT
2160    o fix re-definition bug in MNC_GRID_INIT_ALL()
2161    o doc/api_reference added
2162      - a framework for building an API Reference Manual using all
2163        the "protex" comments embedded in the code
2164      - see pkg/generic_advdiff, pkg/mnc for examples
2165    o MNC:
2166      - make myThid the last argument for all subroutines
2167      - new default for the grid files: NO halos
2168      - add useMNC and other run-time flags
2169      - separate per-file-group handling of the unlimited dimension
2170      - early initialization of MNC w/ flags read at the eeboot stage
2171        and lookup tables set in initialize_fixed
2172      - write all MNC output to a freshly-created directory
2173    o thermodynamics sea-ice (thsice) is now tested with testreport.
2174    o test exp. advect_cs: use the standard cs32 grid ; update output.
2175    o Added functionality to grdchk:
2176      pick global i,j,k position (or nearest wet) where to perform check.
2177    
2178    checkpoint52l_post
2179    o new land formulation:
2180      a) use ground enthalpy as prognostic variable to ensure exact
2181         energy conservation.
2182      b) account for water temperature and for latent heat of freezing
2183         in all processes (rain, run-off, ground storage)
2184      c) compute surface and ground temperature implicitly.
2185    o aim_v23 modification for new land model:
2186      a) Treat separately land / ocean / sea-ice surface fluxes
2187         to allow implicit computation of land & sea-ice surface temp.
2188      b) add snow precipitation.
2189    checkpoint52l_pre
2190    
2191    o fix problem (when 1 tile is empty) in min/max monitor.
2192    o fix bug in timeAve (u,vZetatave in common block)
2193    o no restoring terms under ice for pkg/seaice
2194    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2195    o bug fix for pkg/seaice pickups
2196    o change MNC call locations and add coordinate attributes
2197    o mask vorticity at the corner ; affects global_ocean.cs output
2198    o fix ini_curvilinear_grid ; test CS experiments with mpi
2199    o aim.5l_cs: modify sea-ice fraction input file ; update output
2200    o exf: Adding simple range check routine for exf fields after read
2201    
2202    checkpoint52k_post
2203    o removed top-level directory "diags"
2204      - we migrated these functions to pkg/timeave a long time ago
2205    o fixed bug introduced in pkg/monitor
2206    o accuracy ctrlprec = 32 insuffient for gradient checks using
2207      averaged fields (I/O via cost_averages)
2208      -> use ctrl.h in active_file*.F to control I/O precision.
2209    o paramter list of CALL ADTHE_MAIN_LOOP
2210    o added initial do_the_model_io to ecco
2211    o set all ...Freq to zero after cost_final
2212      taveFreq, dumpFreq, pChkptFreq
2213    o MAIN and ECCO differentiability restored
2214    
2215    checkpoint52j_post
2216    o fix nchklev in tamc.h for global_ocean...
2217    o Bringing flow and store directives up-to-date
2218    o Really weird thing!
2219      call do_the_model_io from the_main_loop with parameters
2220      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2221      TAF places a faulty re-call of initialise_varia
2222      after cost_final call which should not be there!
2223    checkpoint52j_pre
2224    
2225    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2226      error messages
2227    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2228    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2229      debug output
2230    o modfied mdsio_writefield.F to handle non-global files under exch2
2231    o update AIM Cubed-Sphere exp (aim.5l_cs):
2232      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2233    o update AIM Equatorial Channel exp:
2234      use standard aim_v23 pkg and change the SST fields to be more realistic.
2235    o globalFile now works with exch2
2236    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2237      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2238    o limit timeave output for hi-res integrations
2239    
2240    checkpoint52i_post
2241    o removed CPP_EEOPTIONS.h from verification/*/code
2242    o updated the tiling for global_ocean_pressure
2243    checkpoint52i_pre
2244    
2245    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2246      the old pkg/aim).
2247    
2248    checkpoint52h_pre
2249    o shortened offending lines in exch2_send_rx?.template
2250    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2251    o genmake2: add build & execute test for NetCDF code
2252    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2253      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2254    o added useSingleCPUIO flag to monitor.F and mon_out.F
2255    o added temporary hack for sea-ice dynamics on the cube:
2256      metric terms are ignored and it is assumed that
2257      there is no sea-ice on cube faces 1, 2, 4, and 5.
2258    
2259    checkpoint52f_post
2260    o added exch2 cube routines to pkg/exch2
2261    o modified hs94.cs-32x32x5 to use it
2262    o added new grid files to hs94.cs-32x32x5
2263    checkpoint52f_pre
2264    
2265    checkpoint52e_post
2266    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2267      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2268    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2269      to work with implicit vertical advection and AB ;
2270    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2271    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2272     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2273    checkpoint52e_pre
2274    
2275    o fix bug in impldiff when Nr=1 or Nr=2.
2276    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2277    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2278    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2279      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2280    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2281    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2282    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2283    
2284    checkpoint52d_post
2285    o re-tiled many expts to allow comparison in multi-processor mode
2286      - updated output accordingly
2287      - changed hs94.128x64x5 to use intial T from file rather than use the
2288        random number generator
2289    o add infrastructure in model routines for fizhi and gridalt packages
2290  o change global_ocean.cs32x15 because of Pb with GM on CS-grid.  o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2291  o changes to permit hi-res, cubed-sphere, configuration  o changes to permit hi-res, cubed-sphere, configuration
2292    - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F    - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
# Line 14  o changes to permit hi-res, cubed-sphere Line 2298  o changes to permit hi-res, cubed-sphere
2298     Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,     Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2299     complete with example surface forcing files and matlab scripts to look     complete with example surface forcing files and matlab scripts to look
2300     at the output and compare it with that of global_ocean.cs32x15.)     at the output and compare it with that of global_ocean.cs32x15.)
2301    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2302       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2303       to conform to the common rule.
2304    o check-in the first version of the coupler + interfaces for multi-components
2305       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2306       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2307       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2308       - ocean and atmos. share the same horizontal grid (no interpolation).
2309       - exchanges between component and coupler is done in forward_step
2310    o new verification experiment, cpl_aim+ocn:
2311       coupled ocean - AIM atmosphere on cs32 grid.
2312    
2313  checkpoint52d_pre  checkpoint52d_pre
2314  o surface flux time-av diagnostic modified for NLFS & RealFreshWater  o surface flux time-av diagnostic modified for NLFS & RealFreshWater

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