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revision 1.106 by jmc, Sat Nov 23 22:39:36 2002 UTC revision 1.916 by dimitri, Mon Dec 3 07:45:27 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/exf: added CPP option EXF_SUBTRACT_UVVEL_FROM_UVWIND for subtracting
8      UVEL and VVEL from UWIND and VWIND prior to applying bulk formulae.
9    
10    checkpoint59k
11    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
12      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
13    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
14      all experiments pass when compile with un-initilised var. checking option.
15    o added pkg/salt_plume
16    o script to test restart (for now, in MITgcm_contrib/jmc_script)
17    o pkg/seaice: new read/write pickup version.
18      read meta file and write only fields which are needed to restart.
19      ( same logic as main pickup file ; also using pickupStrictlyMatch )
20    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
21    o lab_sea.hb87: modify the domain & update output.hb87.txt :
22      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
23      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
24      process. Fixed here by closing the domain at the Northern boundary.
25    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
26    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
27      a set of consecutive levels in/from a 3-D array.
28    o pkg/ptracers:
29      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
30      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
31    
32    checkpoint59j
33    o in pkgs: dic, obcs, offline, rbcs:
34      standard way to compute coeff. for time interpolation between 2 time reccords
35      which retains full precision (& make results less dependent on compiler).
36      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
37    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
38      packages instead of reading ice cover and wind speed separately
39    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
40     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
41      to allow to compile customized code before the update)
42    o cleaning-up:
43      - fix CPP instruction syntax in pkg/obcs
44      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
45        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
46      - fix some threads issue in IO parts.
47    o pkg/dic:
48      - add tons of "_d 0" (--> much better testreports !)
49       and then update outputs of tutorial_global_oce_biogeo
50    o pkg/mom_fluxform:
51      add a special version of momentum advection intended to conserve momentum
52      next to a bathymetry step or a coastline edge. (default = off = #undef)
53    o new read/write pickup version:
54      - for now, only implemented for main (mdsio) pickup file.
55      - write out only what is needed to restart; merge pickup_nh , pickup_ph
56        and main pickup together.
57      - read meta file; read only what is needed to restart; stop if a field
58        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
59        if it make sense (even if the restart is not perfect).
60      - if no meta file, assume that pickup to read corresponds exactly to
61        a pickup that would currently be written.
62      - read pickup written in the old format (until checkpoint59i) if it
63        recognizes an old meta file (no field-list).
64      - add a meta file in exp. which starts from a pickup: 2 cases:
65        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
66         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
67        b) a meta file describing the content of the associated pickup file
68         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
69    o pkg/mdsio & pkg/rw:
70      - new routine to read a meta file ; new set of routine to read
71        Multiple-fields file (with meta file).
72    o added open boundary conditions capability for seaice
73        HSNOW, HSALT, UICE, and VICE
74    
75    checkpoint59i
76    o adjoint:
77      * fix multiDimAdvection adjoint
78        (partial recomputation problem by TAF for fVerT(:,:,kDown)
79        and comlev1 size definition (maxpass vs. max. number of tracers)
80      * verification/global_ocean.90x45x15 adjoint now tests
81        NLFS and multiDimAdvection using DST3 (=30)
82      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
83    o pkg/kpp: add "_d 0" to real constant (if missing);
84      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
85      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
86    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
87      for internal parameters related to restart process (formerly from PARAMS.h)
88      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
89    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
90      as argument. (only atm2d & obcs write_pickup have not yet been updated)
91    o pkg/monitor:
92      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
93      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
94      - account for deep Atmosphere factor and density factor (anelastic)
95    o added open boundary conditions capability for seaice HEFF and AREA
96    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
97      thermodynamics
98      - requires a little reorganization, which affects the testreport results
99        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
100        so that now the conservative form is tested
101      - add a few comments
102    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
103    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
104    o add new diagnostics to seaice: advective, diffusive fluxes (only for
105      multidim-advection, for scheme 2 they are not filled) and transports,
106      thermodynamic growth rates
107    o change units of EmPmR (inside the code, + within coupling interface)
108      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
109      Affects results @ truncation level (cg2d match) and update output of
110       experiments: lab_sea(6), global_ocean.90x40x15(10),
111      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
112      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
113      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
114      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
115    
116    checkpoint59h
117    o pkg/exf:
118      - improve vectorization by moving if-statement out of loops in
119        exf_mapfields, exf_radiation
120      - exf_bulkformulae.F: introduce 2D fields and vectorize code
121    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
122    o testreport:
123      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
124        monitor & update offline_exf_seaice exp. output.
125      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
126    o pkg/seaice:
127      - bug fix in the evp solver: boundary conditions were affected be
128        masking of zMax/zMin (changes results)
129      - minor bug fix in boundary conditions in seaice_calc_strainrates
130        (changes results for no_slip)
131      - seaice_lsr.F: make interpolation of eta dependent on boundaries
132      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
133      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
134        stress formulation and no-slip boundary conditions
135    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
136      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
137    o pkg/seaice: a first HSALT time stepping equation has been checked in
138    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
139      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
140      without requiring DO-IF statements
141    o pkg/thsice:
142      use continuous power-law function for partition of energy between lateral
143      melting/freezing and thinning/thickening ; old code using step function
144      still available with #undef THSICE_FRACEN_POWERLAW
145      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
146    o testreport: change AD testing : check against results/output_adm.txt
147      using same scripts as for forward test.
148    
149    checkpoint59g
150    o adjoint testing: in preparation for changing testreport:
151      - output format: cost and grad written on separated lines
152      - ad output results in directory "results" (instead of "results_ad")
153    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
154    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
155    o pkg/ecco: allow user defined cost function contributions
156    o testreport:
157      Allow to choose (per experiment) the list of tested output variables
158       and the main variable (used to issue a pass/FAIL ) ;
159      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
160      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
161      Also modify printing of summary:
162       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
163       b) echo the list of tested variables in the individual summary.txt of
164          each experiment.
165    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
166      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
167      (but still depend on the tile decompostion of the domain).
168    o pkg/seaice: change a discretization detail to make the B-grid code
169      "more symmetric". This change is likely to remove all "ridges/leads" that
170      where quasi-aligned with the grid in B-grid solutions. It may also be
171      the solution to the stress coupling issues with the B-grid.
172    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
173      remove .cvsignore from input dir. (since testreport no longer run here).
174    o pkg/thsice:
175     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
176     - fix reshaping of sea-ice just after advection:
177       melt all the ice only if ice-volume is too small.
178     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
179       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
180     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
181    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
182      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
183    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
184      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
185      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
186      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
187      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
188      -> update output.txt
189    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
190     this affects truncation error: -> update output.txt of exp:
191      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
192      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
193    
194    checkpoint59f
195    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
196    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
197      a bounded range (in forward mode)
198    o pkg/ecco, ctrl, autodiff and mom_common:
199     internal parameter controls, completements of implementations
200    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
201    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
202      (not seem any difference in testing results).
203    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
204       at face corners.
205    o pkg/generic_advdiff:
206     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
207      loop range indices for computing vertical advection tendency
208      and do the calculation in the interior only (no overlap) ;
209      for now, only implemented for SOM advection (to save CPU time).
210     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
211    o exch2 adjoint
212      First set of changes:
213      - add exch2 hand-written adjoint templates
214      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
215        This will require cleanup in pkg/autodiff/*.F
216        (changed routines currently kept separate in verif. code/)
217      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
218        that used to hide exch2 or cubed-sphere specific code
219        (commented via 'cph-exch2')
220    o pkg/seaice
221      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
222    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
223       output of global_ocean.cs32x15.thsice .
224    
225    checkpoint59e
226    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
227      for B-grid vector (not yet tested) and C-grid vector (<- only used
228      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
229    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
230      (#ifdef ALLOW_SALT_PLUME)
231    o gather_2d/scatter_2d: removed halo regions
232    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
233      scheme and the corresponding test case (under front_relax dir). For now,
234      only available with Skew-flux form and not yet tested in realistic set-up.
235      adjoint: store directives updated, but gradient checks deteriorated,
236      so maybe GM/Redi adjoint is now broken.
237    o seaice adjoint
238      * add AREA, HEFF, HSNOW as control variable
239        (should not change lab_sea results)
240      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
241    o pkg/seaice:
242      * added computation of saltFlux in seaice_growth;
243        For time being, sea ice salinity is assumed constant
244        contribution of snow flooding to freshening of sea ice is neglected.
245        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
246        defaults to 0.0 in order to maintain backward compatibility.
247        Typical values for SEAICE_salinity are 4 to 10 g/kg.
248      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
249      * added SEAICE_availHeatFrac, which specifies fraction of surface level
250        heat content used to melt or grow ice
251      * commented out cap of HICE: it helps keep ice thinner
252      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
253      * applied OBCS T/S mask to HEFFM sea ice mask
254    
255    checkpoint59d
256    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
257     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
258     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
259    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
260     and change default value of parameter "GM_Small_Number";
261     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
262       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
263       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
264    o pkg/ecco: cost function when applying pkg/smooth to controls
265    o pkg/ctrl: add forcingPrecond run time parameter
266    o pkg/seaice:
267     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
268     - fix bug in metric terms of u-equation in LSR solver (implicit part),
269       changes verification/lab_sea
270     - rearrange implicit part of u-equation in LSR solver to make it easier to
271       read, understand, and debug. This causes changes at the truncation level.
272     - fix (serious) bug in the boundary conditions (sign error in the implicit
273       part) of the LSR solver. Changes all LSR results.
274     - fixed problem with HSNOW initialization to avoid thick snow when AREA
275       is initilized with small values - does not change lab_sea results.
276     - added HsnowFile initialization capability
277    o pkg/smooth: addition to model/src and pkg/ctrl so allow
278     initialization of pkg/smooth and application to control vector
279    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
280    o dependencies: pkg/profiles requires pkg/cal
281    o pkg/profiles:
282     - added option ALLOW_PROFILES_GENERICGRID
283         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
284         that interpolation information (grid points and coefficients) is provided
285         within the netcdf input files.
286         -> sample matlab scripts can be found in MITgcm_contrib/gael
287         that allow you to prepare netcdf input files.
288     - also modified: cleaner include statements, cleaner error print statements,
289       cleaner stops when error, and more tests of the netcdf input files consistency.
290    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
291    o pkg/seaice:
292     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
293       requires a new routine: seaice_diagnostics_fill.F
294     - make sure that seaice does not move if not forced (pressure replacement
295       method, Hibler and Ip, 1995), changes results
296     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
297     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
298       It is turned off by default (=-1.), because it changes the results.
299     - make it possible to read AREA from a file, too.
300    
301    checkpoint59c
302    o add S/R and diagnostics for oceanic mixed-layer depth
303    o move GMRedi call after all vertical mixing schemes (including KPP)
304    o pkg/thsice:
305     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
306      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
307    o pkg/obcs:
308     - bug fix for balance code
309    o pkg/seaice:
310      - allow values of SEAICE_elasticParm > 1
311      - add new parameter SEAICE_evpTauRelax as an alternative
312        to SEAICE_elasticParm
313      - make lsr boundary conditions free slip (by default), changes result
314      - add code for no slip boundary conditions for lsr
315      - set minimum of zeta to zero (and not 4e8) (changes results)
316      - add a cap on AREA after advecting AREA if seaice_growth is not called
317    o change calculation of Visbeck K:
318      - no longer depend on tapering scheme; instead, compute slope (limited
319        by GM_maxSlope). this is equivalent to what was comuted before with
320        clipping or linear tappering.
321      - fix vertical averaging (wrong by 1/2 level)
322      - leave the old version (but will not be maintained) within
323        #ifdef OLD_VISBECK_CALC / #endif
324      - update output of exp. ideal_2D_oce
325    o change error catch in calc_r_star to improve vectorization
326    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
327      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
328    o adjoint:
329      Re-organized adjoint checkpointing according to Matt Mazloff
330      (but with modifs/completions/cleanups)
331      Storing is now bundled into large arrays to optimized I/O
332      (and second step in cleanup of the_main_loop)
333    
334    checkpoint59b
335    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
336      - export/import (between ocean & coupler) fields needed for ocean DIC.
337    o pkg/seaice:
338      - get rid of three more exchanges seaice_calc_viscosities (required
339        different loop boundaries in seaice_lsr and seaice_ocean_stress)
340      - bug fix in seaice_ocean_stress (update of lab_sea required)
341      - reduce loop boundaries to necessary minimum also in seaice_evp
342      - go back to the old way of computing deltaC/Z as the adjoint likes that
343        better
344    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
345      passive tracer to an Age Tracer) + update output.txt
346    o pkg/exf:
347      - implement A-grid / C-grid selection for wind-stress input files.
348      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
349      for now, in exf_bulk_largeyeager04.F only :
350      - change implementation for case where windspeed + 2. components wind-stress
351        are read-in. AND use rhoConstFresh to convert evap.
352    o pkg/seaice:
353      - use correct EXCH_UV for wind-forcing (on A-grid).
354      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
355        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
356    o pkg/exf:
357      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
358      EXF_INTERPOLATION:
359      - merge global_with_exf/code version of exf_interp_read.F
360        to the main code ;
361      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
362        reading the file ; Important: This options needs to be defined to recover
363        previous code.
364        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
365      - no longer loose real*8 precision along the way when using exf_iprec=64.
366    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
367      - change discretisation of evp-solver in order to avoid another exchange
368        (changes lab_sea) and clean up a little
369      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
370        help the adjoint (this also changes the results slightly)
371      - add a few "_d 0" where they had been missing in seaice_evp.F
372      - cleaning up: remove unused seaice_calc_rhs.F
373    o pkg/exf: some cleaning-up:
374      - change various "constants" into runtime parameters
375      - cleaned-up Large&Yeager04 routine which should eventually
376        replace exf_bulkformulae.F (changed names of S/R and CPP)
377        and merged various ALLOW_ATM_WIND options
378     only used with thsice pkg (in thsice_get_exf.F):
379      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
380        which are used when useStabilityFct_overIce=TRUE (= the default)
381      - change default values of ice & snow emissivity and scale downward LW
382        by ice & snow emissivity.
383    o pkg/thsice:
384     fix few little problems, in thsice_calc_thickn.F:
385      - growth vertically (and not laterally) if iceFrac == iceMaskMax
386      - melt only laterally if hIce < hThinIce (as the comments say)
387      and in thsice_extend.F:
388      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
389      - start to form ice as soon as the minimum ice-volume is reachable.
390     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
391      and cpl_aim+ocn
392    o pkg/kpp
393     - move computation of surface related input fields to KPP into a new
394       subroutine kpp_forcing_surf.F
395     - remove wrong (within bi,bj loops) EXCH calls.
396     - little cleaning (add argument myThid in last position, cvs header ...)
397     - for now, fix conservation problem by exchanging KPPviscAz (may not
398       be the best fix)
399    o pkg/seaice
400     - check for inconsistent evp parameter/cpp-flag combination
401     - remove leftover errIO flat for obsolete name list error handling
402    o OpenAD
403     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
404    
405    checkpoint59a
406    o pkg/seaice: some parameter clarifications and a little bit of clean up
407    o pkg/thsice: rename run-time parameters:
408       himin       -> hIceMin
409       himin0      -> hThinIce
410       hihig       -> hThickIce
411       i0          -> i0swFrac
412       transCoef   -> bMeltCoef
413       frac_energy -> fracMelting
414      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
415       with default values (for now) that do not change the results.
416      remove old version of thsice vars advection in pkg/seaice.
417    o in FFIELDS.h:
418      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
419      - make pLoad & sIceLoad always available (but still only used if
420         ATMOSPHERIC_LOADING is #define).
421    o pkg/kpp: replaced _KPP_RL with _RL
422    o bug fixes for vertical diffusivity computations when both KPP and
423        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
424        are no longer updating the vertical diffusivity array
425        (passed as argument) but are (re-) setting those arrays.
426    o pkg/seaice: fix bug in evp solver, while doing that
427      - change (improve?) discretization of stress computations for both
428        cgrid-lsr and evp solver
429      - add a new routine to compute strain rates
430      - the above changes lab_sea results
431      - add no slip conditions for evp solver (off by default), lsr-version
432        may follow
433      - fix exchange for shear at Z-points (does not change lab_sea)
434      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
435        (to force the user to pick a time step since there is not "safe" way
436        of choosing it)
437      - add principal stress diagnostics
438      - rearrange fields for evp a little to avoid having to call a: too many
439        exchanges and b: exchanges for stress trensor components which we do
440        not have.
441      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
442        of evp, complete rewrite for lsr case (latter is does not yet work
443        in all cases)
444    o pkg/kpp: add code to have mixing in shelf ice caverns
445      - add myThid to all kpp routines (long overdue)
446    
447    checkpoint59
448    o pkg/exf:
449      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
450        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
451      - move exf header files from lower_case.h to UPPER_CASE.h ;
452        add missing cvs Header & Name
453      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
454      - add namelist param. selectStressGridPosition, exf_monFreq
455      - retire many _CLIM routines, and remove data.exf_clim
456        + params moved to data.exf
457        + climsst, climsss now handled by exf_set_gen, i.e.
458          climss?period=0 refers to constant field,
459          climss?period=-12 to monthly forcing
460      - split up namelists in data.exf
461    o pkg/seaice:
462      - remove seaice_exch and seaice_exch_uv
463      - remove superfluous exchange of theta
464      - add myThid to seaice_budget_ocean/ice
465      - add new interface for atmospheric wind forcing (C-grid only)
466        + new routine
467        + two new field (taux, tauy for stress over ice)
468        + removed one global field (DAIRN) for C-grid case only
469    o pkg/thsise
470      - 2nd set of modifs for thsice adjoint in conjunction with exf
471    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
472    
473    checkpoint58y_post
474    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
475      vertical diffusivity, similar to that in MOM4; turned on using
476      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
477      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
478    o Added capability for 3D specification of background vertical diffusion
479      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
480      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
481      "data" file that contains the 3D vertical diffusivity coefficients.
482    o ice dynamics (pkg/seaice) with thsice thermodynamics:
483      - add code within pkg thsice to advect & diffuse sea-ice fields
484      similar to (and will replace) what has been added in  seaice_advdiff.F,
485      but: - conserving Mass, Heat & Salt.
486           - better when using non-linear advection scheme (not yet fully tested)
487           - can also be used in atmospheric set-up (for now, only the diffusion).
488    
489    checkpoint58x_post
490    o IO option for global-file compact format:
491      - add options when generating topology (utils/exch2/matlab-topology-generator)
492      - add I/O capability (pkg/mdsio).
493      - adapt utils/matlab/rdmds.m to read this format.
494      for now long-line format not yet supported by pkg/mdsio (& exch2).
495    o shelfice: add a few diagnostics
496    
497    checkpoint58w_post
498    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
499      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
500      (and replace horiVertRatio in NH code).
501      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
502                         and tutorial_plume_on_slope (sensitive to truncation)
503    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
504      directly to drive seaice model (C-grid only)
505    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
506     - reintroduce computation of wind from stress,
507     - compute tau (in exf_bulkformulae.F) from windstress averaged to
508       mass points to avoid tau = 0
509     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
510    o rdmnc.m: make it work with "global" files created with gluemnc
511    o rdmnc.m : some improvements in dealing with singleton dimension
512      (tested on all testreport mnc output files).
513    o genmake2: disable pkg/profiles if netcdf test fails.
514    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
515    o move call to cal_readparms up to make calendar parameters/variable available
516      to all packages
517    
518    checkpoint58v_post
519    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
520      useDynP_inEos_Zc tested.
521    o pkg/exf: changes to properly interpolate/mask/scale initial fields
522    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
523      and portions thereof.  See read_cs.txt for description and examples.
524    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
525      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
526      following the great-circle arc between those 2 points.
527    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
528      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
529    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
530     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
531     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
532     - still needs work (not working with some options ; efficiency to improve)
533       and serious testing.
534     - use this scheme for temperature & salinity in 2 advection test exp.:
535       advect_xy & advect_xz, respectively.
536    
537    checkpoint58u_post
538    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
539    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
540    o testreport: add option "-skipdir" to skip some test.
541    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
542      momentum calculation.
543    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
544    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
545      remove checkpoint.F and the_correction_step.F (no longer used);
546      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
547    o add option (linFSConserveTr) to correct for tracer source/sink due to
548      Linear Free surface
549    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
550    o pkg/thsice: fix reading mnc-pickups
551    
552    checkpoint58t_post
553    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
554    o pkg/mdsio:
555     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
556       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
557       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
558     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
559     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
560       either MDS_READ_FIELD or MDS_WRITE_FIELD )
561     - new S/R (to replace MDSWRITEMETA), which allows to write more
562       informations (variable names, time ...) to meta files.
563     - modify rdmds.m to give back the meta file content.
564    o pkg/diagnostics: change vertical interpolation to be safer, and more
565       flexible (define p-levels to interpolate to in data.diagnostics);
566      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
567       diagnostic pointer.
568    o pkg/seaice: more cleaning up of seaice_growth, added many comments
569    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
570    o fix multi-category seaice:
571     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
572       SEAICE_MULTICATEGORY
573     - fix short wave heat flux
574    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
575       and allow to use EVP solver. Change forward lab_sea: test both EVP
576       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
577    o Initial check-in of lab_sea adjoint
578      (very similar to natl_box_adjoint/code_seaice)
579      * used C-grid and EVP solver
580      * used KPP, GM/Redi
581      * uses inAdExact=.TRUE.
582      * gradient checks fail for both ADM and TLM
583        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
584        f.d. gradients actually seem more problematic than ADM, TLM gradients;
585        issue is related to forward mismatch between g77 an ifort
586    o pkg/seaice: overhaul of thermodynamics
587     - growth.F and groatb.F are replaced by new routine seaice_growth.F
588     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
589     - move a few global fields out of SEAICE.h into seaice_growth.F and
590       make them 2D (FICE/QNETO/ ...)
591     - remove FO (it is the same as QNETO)
592     - introduce a few local fields to avoid modifying external fields such
593       as atemp, etc.
594    
595    checkpoint58s_post
596    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
597      changed exf_set_gen.F so that
598        genperiod=0 means input file is one time-constant field and
599        genperiod=-12 means input file contains 12 monthly means
600    o CG2D: use pre-computed solver main-diagonal (stored in common block);
601      this affects truncation error ; generate new output file for exp. which
602      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
603        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
604        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
605        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
606        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
607        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
608    o start implementation of deep-atmosphere and anelastic formulation
609    o verification: remove 2nd copy of input files and use script "prepare_run"
610      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
611    o mom_common/vecinv/fluxform: fix a few initialisation isssues
612    o profiles: fix for multithreaded case
613    
614    o diagnostics: rename few diags:
615      s/'PRESSURE'/'RCENTER '/g
616      s/'TICE    '/'oceFreez'/g
617      s/'TAUX    '/'oceTAUX '/g
618      s/'TAUY    '/'oceTAUY '/g
619      s/'SWFLUX  '/'oceQsw  '/g
620      s/DIFx/DFxE/g
621      s/DIFy/DFyE/g
622      and add few ocean-forcing diagnostics:
623      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
624    o modifications to pkg/seaice/growth.F and budget.F, which change results of
625      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
626      as actual snow thickness.  It now refers everywhere to effective snow
627      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
628    
629    checkpoint58r_post
630    o modifications to pkg/seaice/growth.F, which change results of
631      lab_sea experiment: fixes pertain to melting snow over open water, to
632      masking EVAP under sea ice, and to using the correct AREA variable for
633      computations of EVAP, PRECIP, HSNOW, and GHEFF
634    o add ability to read bathy, salt, and theta using MNC (off by def)
635    o add flooding algorithm and advection of HSNOW for pkg/seaice;
636      both are turned off by default and do no change any results
637    o seaice advection with pkg/thsice: a step toward the use of non-linear
638      advection scheme, but #ifdef or commented out for now (requires more EXCH).
639    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
640      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
641      in natl_box (affects results @ truncation level: update output.txt)
642    o multi-threading and IO:
643      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
644      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
645        (needed to work with SingleCpuIO): tested in all verif. exp.
646    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
647      affects the results (but none of the verification test uses this scheme).
648    o Adding some pkg/diagnostics capability to pkg/seaice
649      (will certainly be subject to changes)
650    o ctrl: adding new control variables:
651      lwflux, lwdown, evap, snowprecip, apressure, runoff
652    
653    checkpoint58q_post
654    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
655      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
656      high_res_cube configuration by 4% on Columbia.
657    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
658      add (in global_with_exf/code) a version of EXF_INTERP_READ without
659      dynamical allocation (seems to work in multi-threaded).
660    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
661      single CPU io) so that TAF does not have to see EESUPPORT.h
662    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
663    
664    checkpoint58p_post
665    o obcs: stop if obcs is used with useCDscheme = .true.
666    o shelfice:
667     - fix a sign error so that no slip at shelfice interface works
668     - remove stop for combination non-hydrostatic code and shelfice. That does
669       not mean, that the results are correct, but at least they are numerically
670       stable
671    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
672    o added adjoint exch routined for all exch*3d* routines
673      and updated flow directives
674    
675    checkpoint58o_post
676    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
677      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
678    o change controling S/R for writing pickup file (new S/R do_write_pickup)
679      and clean-up reading/writing of pickup files.
680    o fix local version of read/write pickup (NH part) in rotating_tank/code
681    o simplify EXCH interface:
682     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
683     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
684    o added the regrid package
685    o shelfice:
686     - add a simple boundary layer scheme to reduce noise
687     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
688    
689    checkpoint58n_post
690    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
691       local variable (not in common block).
692    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
693      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
694      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
695        to work with SingleCpuIO.
696    o add "_d 0" to real constant of pkg/cfc subroutines ;
697       update exp. cfc_exemple & tutorial_cfc_offline output files.
698    o multi-threading and IO:
699      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
700        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
701      - barrier before and after reading.
702      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
703      - avoid using MDS_WRITELOCAL for LAND pkg output.
704      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
705        common-block variables ; Allows multi-threading with master-thread IO.
706    o change default MAX_NO_THREADS from 32 to 4 ;
707      and stop cleanly when MAX_NO_THREADS is too small.
708    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
709    
710    checkpoint58m_post
711    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
712       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
713    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
714       keep global_ocean.90x40x15 (for AD testing) with former secondary test
715       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
716    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
717        add MITgcm_tutorials (= code + all the tutorials)
718    o ecco, option to compute cost for total ssh (mean+anom)
719    o consistent with addition of ptracer and ssh in pkg/profiles
720    o profiles: adding ptracer and ssh
721    o testreport: change multi-test output-file name
722      (from output.txt.{name} to output.{name}.txt)
723    o profiles: now ok for mutli-tiles case
724    o seaice: add 4 parameters for different advection schemes for area,
725      (effective) seaice thickness, enthalphy, and snow height. Their default
726      is the standard parameter SEAICEadvScheme
727    o calc_gw:
728     - add cosFacU in zonal viscous flux (harmonic.visc.).
729     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
730       of tutorial_plume_on_slope.
731    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
732    o calc_gw: true flux-form, account for horizontal grid spacing.
733      update rotating_tank results, but not plume_on_slope (affected at
734      truncation level, 11 digits).
735    
736    checkpoint58l_post
737    o calc_gw:
738     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
739     - remove side-drag for now (need to fix it); update plume_on_slope results.
740     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
741    o commit code to make SST/SSS weights spatially variable
742      (based on either variable in-situ or variable initial T/S weights)
743    o pkg/ecco:
744      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
745        now based on horizontally varying weights wthetaLev, wsaltLev
746      * cost_averagesflags now returns year indices in addition to day, month
747      * sflux balance is performed on annual basis
748        (sflxumm, sfluxmm2, bal_sfluxmm)
749      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
750        including separate counting and multipliers
751    o pkg/rbcs
752      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
753    
754    checkpoint58k_post
755    o testreport:
756     - always build in dir. "build" (if not there, mkdir build instead of building
757       & running in input)
758     - run in dir run (if it exists), in build otherwise.
759     - call prepare_run (if input/prepare_run exists)
760     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
761    o pkg/exf modifications to interpolation and rotation routines for more
762       reasonable treatment of North Pole singularity: for tracers North Pole
763       value is set to northernmost zonal-mean value, for zonal velocity it is
764       set to zero, and for meridional velocity it is set to northernmost value.
765    o pkg/exf/exf_check_range.F
766     - add tile index to diagnostics and move stop statement to the very
767       end of the routine.
768    o pkg/diagnostics: (diagnostics_main_init.F)
769      define title of isomorphic variables according to the current config.
770    o pkg/thsice with pkg/seaice dynamics:
771    - fix domain of computation (interior only, required for exf) and do exchanges
772    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
773    o towards a standard way of dealing with multi-threading in MONITOR
774      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
775    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
776       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
777    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
778    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
779    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
780       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
781    o tracer advection:
782     - clean-up and simplify calc_common_factors.F
783     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
784       advection subroutine (but still not used within DST advection S/R)
785    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
786    
787    checkpoint58j_post
788    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
789      from file (collects calls previously in FORWARD_STEP)
790    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
791    o adjoint store dir. adjusted accordingly
792    o genmake2
793      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
794    
795    checkpoint58i_post
796    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
797      on wind stress (SEAICEstressFactor defaults to 1.)
798    o Total number of Timers is finite (<=40): comment out 2 non-essential one
799      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
800    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
801      on CS-grid: no longer loosing mass.
802    o exf & curvilinear-grid: no longer modify longitude xC & xG.
803    o pkg/ggl90: fix sloppy output and fix a bug
804    o pkg/seaice: added SEAICEuseEVPpickup parameter
805      - Set to false in order to start EVP solver with
806        non-EVP pickup files when using SEAICEuseEVP
807      - fix sign error in diffusion in seaice_calc_rhs
808    
809    checkpoint58h_post
810    * Modifications for bottom topography control
811      o replace hFacC by _hFacC at various places
812      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
813      o add non-self-adjoint cg2d_nsa
814      o update autodiff support routines
815      o re-initialise hfac after ctrl_depth_ini
816      o works for 5x5 box, doesnt work for global_ocean.90x40x15
817    * Adding verification for 5x5 box (4-layer) bottom topography control
818    
819    checkpoint58g_post
820    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
821       used for mean seasonal cycle, mean diurnal cycle); add an example
822       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
823    o pkg/ggl90:
824      - add parameter (minimum surface kinetic energy)
825      - fix bug (avoiding division by zero)
826    o couple pkg/thsice to pkg/seaice:
827      - modify advection in seaice to accomodate new scalar fields to be advected
828      - only muliDimAdection scheme work with seaice/thsice
829      - mapping of thsice-variables to seaice-variables, back and forth
830      - does not break the verification experiments, but does not give the
831        desired results either
832    o pkg/seaice
833      - make (default) second order advection a bit less confusing?
834    
835    checkpoint58f_post
836    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
837      to pkg/seaice):
838      - new routines thsice_map_exf and thsice_get_exf provide the interface
839      - add an additional formal parameter to thsice_solve4temp
840    o pkg/exf:
841      - add new fields wspeed, snowprecip (to be able to couple to thsice)
842      - correct Stefan-Boltzmann constant
843      - new parameter for longwave surface emittance
844      - separate some stuff from exf_bulkformulae into new routines  
845        exf_radiation, exf_wind
846      - add new parameters and constants: longwave emissivity for ocean, ice
847        and snow, evaporation parameters over ice
848      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
849        either wind from stress or stress from wind
850    o pkg/thSIce:
851    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
852    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
853       and THSICE_CALC_THICKN
854    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
855    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
856      to make debugging easier.
857    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
858    o pkg/bulk_force:
859      - clean-up comments and parameters ;
860      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
861    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
862      generate new output for test-experiment: aim.5l_cs.thSI
863    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
864      testreport accordingly
865    
866    checkpoint58e_post
867    o SEAICE_CGRID adjoint done
868    o R_STAR adjoint implemented.
869      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
870      * need to sort out init. of h0facc, etc.
871    o Make pkg/profile fully independent of ecco,cost, etc. stuff
872      to be able to use it in pure forward.
873    
874    checkpoint58d_post
875    o upgrade simple test-experiment to tutorial example:
876     step.1: duplicate the experiment and (step.2) will remove the old copy.
877      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
878      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
879      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
880      tutorial_global_oce_biogeo    <- copy of dic_example
881      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
882      tutorial_plume_on_slope       <- copy of plume_on_slope
883      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
884      tutorial_global_oce_optim     <- empty for now (David ?)
885      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
886     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
887    o correct a sign problem in cost_scat.F
888    o obcs and ptracers: fix boundary conditions for advections schemes
889      with larger stencil
890    o thsice adjoint: start
891    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
892      completeness
893    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
894      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
895    o ptracers adjoint:
896      * avoid extensive recomputatations
897      * fix missing re-init. of gptr (missed by TAF)
898    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
899      me to turn off the excessive output to STDOUT that this package produces
900    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
901      and add those terms in Vector-Invariant formulation.
902    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
903      if the control period (xx_hfluxperiod etc) is 0
904    o in profiles pkg, clean routines and fix details
905    o in ecco pkg, reading ssh data:
906      fix problem in case the model does not start at iter0=0
907    o fix mnc-pickup/restart for ptracers
908    o new package prifiles:
909      code to compute profile-based cost by Gael Forget
910      (modifs in ecco, ctrl, autodiff)
911    o Benign bug fix in initialization (spotted by M. Mazloff) of
912      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
913    
914    checkpoint58c_post
915    o adjoint: finish NLFS adjoint and provide reference output in
916      verification/global_ocean.90x40x15/results_ad_nlfs
917    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
918      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
919      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
920      with SEAICE_CGRID defined.
921    o move calendarDumps from "data" to "data.cal" and clean-up the code
922      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
923    o add useEXF & useCAL flags (for now, set in hard-coded way)
924    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
925      (were missing in NH mode, and wrong in quasihydrostatic mode).
926      waiting for Chris updated version of calc_gw to add those CALLs.
927    o fix bug in quasihydrostatic S/R ;
928      add a test for this option: global_ocean.90x40x15.qshyd
929    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
930      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
931    o add on/off flag useOffLine for package OFFLINE
932    o seaice:
933      - modify advection so that it works also on the C-grid
934      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
935        problem in multi-tile runs with C-grid
936      - add flags for clipping ice velocities and/or masking solver forcing
937      - fix drag (ocean on ice) formulation and a bug that caused noise in the
938        C-grid solver
939      - added a few comments to seaice_diffusion.F
940      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
941        are now exclusive)
942      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
943        required re-ordering the code a little:
944       + make DAIRN global variable (defined in SEAICE)
945       + move computation of the viscosities eta and zeta into a new separate
946         routine (because I need to recompute them in seaice_ocean_stress.F)
947    
948    checkpoint58b_post
949    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
950      update output.txt of exp. aim.5l_cs.thSI
951    o various mnc cleanups and improvements:
952      + shrink lookup tables by factor of ~4
953      + better error reporting when running out of lookup space
954      + able to handle longer path/file names (up to 500 chars)
955    o adjoint:
956      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
957      - TBD: "hidden" mom_vecinv recomp. in dynamics
958    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
959     (allow to differentiate between forcing components using new integer flags:
960      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
961     and add new flag to put Dissipation tendency out of Adams-Bashforth.
962    o ecco
963      - enable trend removal from SSH anomaly obs.
964    o adjoint
965      - a fix for PmEpR when #undef EXACT_CONSERV
966      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
967      - try to fix "hidden" recomp. in forward_step for NLFS
968        (NLFS seems broken sometimes after I checked it in)
969    o seaice:
970     - add c-grid version of the dynamic solver:
971       + three new routines that are the c-grid substitute lsr, dynsolver
972         and ostres
973       + put a few fields that were local to dynsolver into global common
974         blocks, so that I can move the computation of stresses etc into
975         seaice_lsr (saves coding but may break the adjoint).
976     - replace more hardwired parameters by runtime parameters
977     - add ice masks that mask the rhs of the implicit solvers where there
978       is no ice (commented out in seaice_dynsolver, because i am not sure
979       if this works properly), eventually this should replace the clipping
980       of ice velocities in seaice_dynsolver to +/-40cm/s.
981    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
982      include it only where its needed
983    o move balancing of fluxes before the call of external_forcing_surf
984    o seaice:
985      - correct units of turning angles (now they are really in degrees)
986      - move computation of GWATX/Y out of main routine into dynsolver
987      - initialize GWATX/Y in seaice_init
988    o Apply mask on Fresh-Water flux (needed for SSH forcing).
989      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
990    o seaice: add runtime flags for turning angles (default to zero)
991    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
992      and trend from exf forcing and ctrl control adjustments
993    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
994      (since checkpoint57x_post)
995    o change the default rotation period to 86164.s = the Earth rotation
996    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
997      and based on a reference stratification. Tested within hs94.cs-32x32x5.
998    o seaice advection: add code for choosing between the default (2nd order
999      central differences) and multiDim advection schemes provided by
1000      pkg/generic_advdiff
1001    o seaice:
1002      - removed all references to SEAICE_GRID.h fields from
1003        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1004        (cubed-sphere configuration will change a little)
1005      - grid computations in seaice_init are obsolete now.
1006      - cleaned up code a little so that is easier to read (hopefully).
1007      - added new (better?) discretizations of default advection and diffusion
1008        (turn on with SEAICEuseFluxForm)
1009      - replace 1 in 3d global fields by kSurface in growth.F
1010      
1011    checkpoint58a_post
1012    o seaice:
1013      - bug fix in advect.F
1014    o shelfice:
1015      - separate shelfice load anomaly from pload (breaks with time
1016        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1017        Its default is 0., but it may be computed more cleverly from (unknown)
1018        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1019        done offline. A good approximation of the pressure load anomaly is
1020        necessary to avoid large initial adjustment processes underneath
1021        deep-reaching shelfice.
1022      - small fix in ISOMIP shelfice_thermodynamics
1023      - add more sophisticated thermodynamics of Hellmer (1989), this is
1024        now the default
1025      - give a few constants more intuitive names
1026    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1027      if bulk formulae are used in long integration (especially EmPmR). Turn
1028      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1029      if balancePrintMean, the imbalance that is substracted is printed to
1030      STDOUT.
1031    o fix bug (typo) in obcs_apply_eta.F
1032    o add a new package shelfice which enables us to model the circulation
1033      underneath shelf-ice with draughts of hundreds of meters.
1034     - works
1035     - to do: + include improved thermodynamics
1036              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1037                instead of new field kTopC
1038              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1039                instead of new field R_shelfIce and new code in ini_depth.F
1040                and ini_mask_etc.F?
1041              + adjust vertical mixing schemes?
1042    o seaice pkg:
1043     - add a cpp-flag to include a simple formula for a salinity dependent
1044       freezing point of sea water at the surface
1045     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1046       meridional stresses are now different (and hopefully correct)
1047    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1048       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1049       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1050    o pkg/diagnostics: add options and parameters for regional-statistics
1051       diagnostics ; define regions by reading a region-mask from a file
1052       (might add other options later)
1053    o pkg/bulk_force:
1054     - add option and parameters to use AIM surface-flux formulae.
1055     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1056       others forcing fields (defined in PARM05, parameter file "data") are loaded
1057       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1058     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1059     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1060     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1061       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1062     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1063    
1064    checkpoint58
1065    o add "--embed-source" option to genmake2 which, when the supporting
1066      tools can be compiled (as determined by genmake2) will turn on the
1067      embed_files package which then embeds the entire MITgcm source code
1068      (*.[fFhc] + Makefile) used for the build within the executable
1069      - requested by CNH but off by default
1070      - adds a paltry <9MB to the mitgcmuv executable in most cases
1071      - only writes the output when useEMBEDSRC in eedata is true
1072    o clean up 3-dim. relaxation codes:
1073      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1074      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1075      * Thanks to Tom Haine for testing!
1076    
1077    checkpoint57z_post
1078    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1079      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1080    o fix the pickup behavior for obcs in combination with ptracers
1081    o fix a bug in ptracers_external_fields_load
1082    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1083      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1084    o transfered surface NH pressure to eta field (if exactConserv).
1085    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1086         and update lab_sea output.txt file.
1087    o completing 3-dim. relaxation code: additional term
1088         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1089      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1090      * At compile time, in "EXF_OPTIONS.h" set
1091          #define  ALLOW_CLIMTEMP_RELAXATION
1092          #define  ALLOW_CLIMSALT_RELAXATION
1093      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1094          tauThetaClimRelax3Dim = 15552000.0,
1095          tauSaltClimRelax3Dim  = 15552000.0,
1096      * 3 cases:
1097          1) Use a constant-in-time 3-dim. field
1098          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1099          3) Real-time relax. to time-evolving prescribed field
1100    o Adding Laplacian-type smoothness constraint on
1101      initial and boundary (forcing) controls (ic, bc)
1102      * enable at compile-time via
1103        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1104      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1105      * Absolute scale somewhat unclear so far
1106      * no area weighting was included since no other cost term does so far
1107    
1108    checkpoint57y_post
1109    First step for a NLFS adjoint
1110    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1111    o new init. routines for calc_r_star, calc_surf_dr
1112    o still need to deal with ini_masks_etc
1113    o testreport seemed happy
1114    checkpoint57y_pre
1115    
1116    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1117    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1118    o add new offset feature to offline pkg (plus minor cleanup)
1119    o cfc fixes for final year of integration
1120    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1121      be in GCHEM_OPTIONS).
1122    
1123    checkpoint57x_post
1124    o fix testreport Pb in multiple test experiment.
1125    o cleanup our namelist syntax in verification:
1126      - make it more F95 standards compliant (some work still needed)
1127      - allows the vast majority of our tests to work with gfortran
1128    o Non-Hydrostatic:
1129     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1130     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1131    o Allow to apply AB on T,S rather than on AB(gT,gS):
1132     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1133     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1134       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1135     - need a "clever" read_pickup to restart from the other AB formulation
1136    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1137    o remove some unused variables (reduces number of compiler warnings)
1138    o adjoint
1139      * Disable useVariableViscosity for adjoint for time being
1140        (there are a number of extensive recomputations)
1141      * Initialize certain variables needed for adjoint
1142    
1143    checkpoint57w_post
1144    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1145                 fix the singleCpuIO RS version of MDSWRITEFIELD
1146       and add a WARNING if using globalFiles=T with multi-processors.
1147    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1148      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1149    o tracer advection scheme:
1150      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1151       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1152       was not very convenient).
1153      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1154       (further tests needed for the implicit DST & Flux-Limiter schemes).
1155    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1156      and sRef for convenience, handy, when you want to initialize
1157      ptracers in a large domain with a constant non-zero value. Also,
1158      untangle ptracers_init.F a little.
1159    
1160    checkpoint57v_post
1161    o change dome exp. to use variable viscosity in side-drag terms.
1162    o remove all the files from the cfc_offline test since they are now
1163      incorporated into tutorial_cfc_offline which has been producing
1164      identical results for a few days of testing
1165    o add new parameter: sideDragFactor to enable half-slip-side BC
1166      and change side-drag S/R to use viscosity from mom_calc_visc
1167      (can switch back by setting sideDragFactor=0.); affects results at
1168      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1169       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1170    o vorticity & strain are now computed without masking, to account for
1171      no-slip-side BC in variable viscosity calculation ; mask is applied
1172      anyway later on, before computing advection/coriolis terms.
1173    o modify exp4 to test new obcs support for reading from external files
1174      and for passive tracers
1175    o fix behavior of ptracers_monitor when monitor output is written to a
1176      netcdf-file; still not independent of monitor.F (writes in the same
1177      file).
1178    o change default value of tRef (put a uniform, meaningful value for ocean
1179      & atmos) and initialize sRef (was missing, as Martin mentioned).
1180    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1181      to be proportional to enstrophy dissipation length.  Thus,
1182       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1183      This is now consistent with Smagorinsky and with the manual.
1184    
1185    checkpoint57u_post
1186    o OBCS and PTRACERS: add open boundary support for passive tracers
1187      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1188        OB-values from file; this is not different from the way theta and salinity
1189        are treated
1190      - however, Orlanski-radiation conditions are not supported, and the model
1191        will stop if you use pTracers and Orlanski at the same time.
1192      - beefed up the rountine obcs_external_fields_load: now only those open
1193        boundary values are overwritten with values from files for which there
1194        are really files, otherwise the OB-fields remain untouched. This makes
1195        it possible to use different OBs at different ends of the domain (as
1196        with EXF)
1197    o reduce number of exch calls in shap_filt (s2).
1198    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1199      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1200    
1201    checkpoint57t_post
1202    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1203    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1204      same truncation, independent of the face number: affects affects several
1205      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1206    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1207      note that biharmonic viscosity + no-slip was not tested in any experiment.
1208    o fix bug in non-linear free-surf side-drag ; generate new output for
1209      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1210    o make mnc honor the writeBinaryPrec flag for most kinds of output
1211    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1212    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1213      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1214    o add brackets in multi-terms sum to get same truncation, independent of
1215      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1216      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1217    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1218      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1219      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1220      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1221      Suggested values of viscosity parameters found in mom_calc_visc.
1222      Many new viscosity diagnostics available.
1223    
1224    checkpoint57s_post
1225    o Add clearing-house for viscosity calculations, mom_calc_visc and
1226      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1227      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1228      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1229      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1230      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1231      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1232      ViscAhStrain and viscAhTension are now retired.
1233    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1234    o In response to JMC's bug report, genmake2 now ignores any soft-links
1235      that it finds in the *current* directory when searching for files.
1236      Soft-links found in any other source directories will still work as
1237      they did before.
1238    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1239      a C routine to unlimit the stack size
1240    o mnc-ify pkg/aim snapshot vars
1241    o mnc-ify pkg/land as requested by Daniel
1242    o various changes to mnc including:
1243      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1244      - output can now be grouped so that all files within a group
1245          change the ITER portion of their names in lock-step together
1246      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1247          and works with both EXCH1 and EXCH2 (but needs more testing)
1248      - writing works for all verification test cases w/ g77 on Linux
1249    
1250    checkpoint57r_post
1251    o make MNC variable initialization happen earlier
1252    o add diagnostics for (almost) each term of the momentum Eq.
1253    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1254    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1255    o remove MINIMAL_TAVE_OUTPUT option ;
1256      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1257    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1258      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1259    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1260    o add time-dependent SST, SSS control
1261    o cost terms in ecco/ modularized (new cost_generic.F)
1262    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1263    o new infrastructure for seaice model vs. obs misfits in seaice/
1264      * driver from the_main_loop.F is seaice_cost_driver.F
1265      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1266      * gradient check in Exp. 6a of natl_box_adjoint/
1267    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1268      (see README file)
1269    
1270    checkpoint57q_post
1271    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1272    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1273      - bug was reported by Jean-Michel and Ian Fenty
1274    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1275      update exp. cpl_aim+ocn output.
1276    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1277      Needed for high-res. runs with large global files
1278      to be able to limit tapelev size
1279    o Changed some tests for adjoint:
1280      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1281      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1282      * global_ocean.90x40x15/ back to default 3-level checkpointing
1283    o Modifications to enable scripted COMMON to MODULE conversion
1284      * verification/OpenAD/code/ has necessary scripts and description;
1285      * converts, compiles and runs successfully;
1286    
1287    checkpoint57p_post
1288    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1289    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1290      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1291    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1292    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1293      (was already the case for dissipation with mom_vecinv,
1294       and also the case for grad.PhiHyd when staggered-timeStep)
1295      This will allow to put dissipation out-off the AB time-stepping.
1296     Unfortunately, affects truncation error. Update output of exp. that "fails"
1297      (cg2d matching number) and leave the others for later: front_relax(10),
1298      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1299      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1300    
1301    checkpoint57o_post
1302    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1303      (2) its ready to be documented during the 20050801 DocFest
1304    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1305      for ideal_2D_oce and lab_sea on linux_ia32_g77
1306    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1307      in global1x1_tot/code_seaice_adj to access indices 32, 33
1308      (worth another tag)
1309    
1310    checkpoint57n_post
1311    o adding precip control xx_precip 32
1312    o adding swflux control xx_swflux 33
1313    o Replacing 10 forcing penalty cost routines by 1 generic.
1314    o Implementing partitioning in time-mean and variable adjustment
1315      for atmos. state.
1316    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1317    o in natl_box_adjoint:
1318      * updated exp 1 to 10
1319        (but does not have time-mean vs. variable split results yet)
1320    o updated global1x1/*_seaice_adj/
1321      to incorporate latest changes
1322    o enable useSingleCpuIO for mdsio vector routines
1323      (applies in particular to tapelev I/O)
1324    o removed inefficient K-loop in all active_file*control*.F
1325    
1326    checkpoint57m_post
1327    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1328      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1329    o pkg/exch2: filling of face-corner halo regions is optional
1330      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1331    
1332    checkpoint57l_post
1333     tag before updating tutorials (pre-release-2)
1334    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1335       for output and interpolation of input fields onto model grid)
1336    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1337       Affects results of exp. rotating_tank ; update output.txt.
1338    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1339          and taking the square quantity and/or using a fraction-weight field.
1340    o fix aim_diagnostics_init.F mate numbers.
1341    o add mnc output capability to diagnostics/diagstat and update
1342      our cvsignore files for the ACSII output generated
1343    
1344    checkpoint57k_post
1345    o lab_sea now uses diagnostics package and provides a suite of
1346      new EXF diagnostics output.
1347    
1348    checkpoint57j_post
1349    o exf
1350      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1351        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1352        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1353      * extended diagnostics output
1354        - now includes all EXF variables
1355        - hs, hl moved to common block
1356        - separate S/R for diagnostics, called after ctrl vector is added
1357        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1358        - EXFqnet contains true Qnet (i.e. includes qsw)
1359      * updated verif. lab_sea, global_with_exf
1360      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1361        to ensure that diagnostics sees a true EXFqnet
1362    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1363    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1364      several times with different frequencies.
1365    o mnc-ify the thsice package as requested by Daniel Enderton
1366      - the monitor--MNC output needs work
1367      - many attributes need to be added (most are currently blank)
1368    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1369      - many attributes need to be added (most are currently blank)
1370    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1371    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1372    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1373      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1374         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1375    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1376     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1377    
1378    checkpoint57i_post
1379    o Diagnostics package was changed: diagnostic allocation is now deactivated
1380      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1381    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1382      add 1rst Order upwind vertical Shear.
1383    o add a quick fix for A/B checkpointing in OFFLINE mode
1384    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1385      end-run around the C/Fortran linking horror in eesup/src/timers.F
1386    o added pkg/runclock: allows user to terminate run based on wall clock
1387    o added non-hydrostatic scaling parameter: nh_am2
1388    o pkg/my82: futile attempt to make results compiler-independent by adding
1389      some "_d 0", etc. no effect.
1390    o for mnc output, fill the 'T' coordinate var with myTime and create a
1391      separate 'iter' variable for iteration count
1392    o pkg/diagnostics:
1393      add new capability: output of Global/Regional & per-level statistics ;
1394      tested against monitor output (including land & thSIce) on various exp.
1395    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1396    
1397    checkpoint57h_done
1398      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1399      data.diagnostics, data.gchem, data.ptracers) is done.
1400    
1401    o pkg/diagnostics: prepare for Global/Regional statistics.
1402      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1403    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1404      and rename it: DIFFERENT_MULTIPLE
1405    
1406    checkpoint57h_post
1407    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1408    o pkg/diagnostics: change output frequency, now in seconds (instead
1409      of Nb of iterations). This requires to change data.diagnostics.
1410    checkpoint57h_pre
1411    
1412    o in mnc, let the user create the output dir if both mnc_outdir_date
1413      and mnc_outdir_num are false
1414    o add fflags() to pkg/diagnostics which allows one to specify, on a
1415      per-file basis, the file precision [default behavior is unchanged]
1416    o added diagnostics to pkg/kpp, including computation of mixed layer
1417      depth based on a temperature/density criterion
1418    o updated verification/natl_box to test the new pkg/kpp diagnostics
1419    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1420    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1421    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1422      not mnc -- this mistake was found by JMC and is now corrected
1423    
1424    checkpoint57g_post
1425    o add Adams-Bashforth 3rd Order time stepping:
1426      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1427      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1428    checkpoint57g_pre
1429    
1430    o make lambda[Theta,Salt]ClimRelax spatially varying
1431      (default remains spatially uniform constant based on tau)
1432    o added new control variables
1433      * init. uVel, vVel, etanN
1434      * lambda[Theta,Salt]ClimRelax
1435    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1436      (suggested by G. Forget)
1437    
1438    checkpoint57f_post
1439    o add parameter "baseTime" = model base time = time at iteration zero
1440      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1441      account for baseTime shift
1442    o move Coriolis arrays from PARAMS.h to GRID.h
1443    checkpoint57f_pre
1444    
1445    o mnc-ifying the seaice package
1446    o introduced an alternative length scale calculation for use in the limiting
1447      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1448    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1449    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1450      as well as grad(vort3).  Made it compatible with both approximate form
1451      for the cubed sphere and full form of these gradients.  Added flag
1452      useFullLeith to select between approximate and full form.  
1453    o add "d0" in getcon.F to reduce differences between compilers/platforms
1454      update output.txt of exp. fizhi-gridalt-hs
1455    o change port_rand funtion to allow to set the seed.
1456    o fix obscure MNC bug involving conversion between reals and integers
1457      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1458        new version is now more standards-compliant
1459    o adjoint-related modifications
1460      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1461      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1462      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1463    
1464    checkpoint57e_post
1465    o Adding eddy stress controls a la Ferreira et al.
1466    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1467    
1468    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1469      update output.txt of exp. fizhi-gridalt-hs
1470    o add more "Z" dimensions and associated coordinate vars to MNC
1471    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1472    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1473      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1474      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1475      months and years.  Requires pkg/cal.
1476    o diagnostics: add pickup functionality
1477      - off by default for backwards compatibility
1478      - current version only uses MDSIO -- MNC will be added
1479    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1480    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1481    
1482    checkpoint57d_post
1483    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1484    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1485      output from the diagnostics package
1486    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1487    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1488      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1489    o add coordinate variables to the MNC output from the diagnostics package
1490    o change MNC-flags default value: true when useMNC=TRUE
1491    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1492      the ability (off by default) to read the grid information using MNC
1493    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1494    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1495    o do snap-shot diagnostics at the middle of the time-interval (instead of
1496      at the end).
1497    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1498      new test for AIM with thSIce + slab-ocean
1499    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1500    o move state variable diagnostics to the beginning of the time step ;
1501      (note: still needs some work specially for snap-shot diagnostics)
1502      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1503    
1504    checkpoint57c_post
1505    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1506    o generate new output.txt files on faulks with g77 & the new -ieee option
1507    checkpoint57c_pre
1508    
1509    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1510      update output.txt of exp. global_ocean.90x40x15
1511    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1512      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1513    o add saltFlux(+File) forcing capability with periodicExternalForcing
1514    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1515    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1516    o improvements for the MNC output from DIAGNOSTICS:
1517      - correct handling of the unlimitied dimension
1518      - all dims now have associated coordinate variables
1519      - variables located at U, V, and Corner ("Z") points are now written
1520        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1521        *all* data points are output
1522    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1523    o added pkg/seaice/seaice_monitor.F
1524    o mdsio_readfield.F can now read files visible only to master MPI process.
1525    o pkg/seaice: some test code for ice-modified ocean stress
1526    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1527      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1528      spurious negative numbers for precipitation and humidity.  Will cause
1529      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1530    o pkg/ctrl/
1531      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1532        May be enabled via doPackDiag
1533      *  introduce z-scaling of
1534         + gradient (doZscalePack) and
1535         + control (doZscaleUnpack)
1536    o pkg/mdsio/
1537      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1538      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1539    
1540    checkpoint57b_post
1541    o simplify options in diagnostics_fill arguments (remove weird combinations)
1542    o fix MNC coordinate variables so that they now contain per-face index
1543      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1544      general, EXCH2 grids are only aligned to a "local" coordinate system
1545    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1546    o Implement instantaneous output within pkg diagnostics:
1547      setting a negative frequency in data.diagnostics produces
1548     "snap-shot" output (as opposed to time-average if freq > 0)
1549    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1550      NOTE: change ptracer diagnostics name: use 2 characters to work with
1551            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1552    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1553      becomes the coordinate variable for the 'T' dimension
1554    o add CF-style coordinate variables to MNC
1555      - just a first cut:  numbers are meaningless on the cubesphere and
1556        missing along the T axis but otherwise it works!
1557    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1558    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1559    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1560      this is based directly on what the model compute, so that the content of
1561      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1562    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1563    o clean up build options files for SunOS, in particular
1564      - remove -traditional from xmakedepend
1565      - change -xarch=v9 to -xarch=native for f77
1566      - restore use of make (not gmake)
1567      - add CC=gcc if using g77
1568    o changes per discussion of AM, JMC, & EH3 today:
1569      - move redundant "grid" variables out of "state" -- in preparation of
1570        creating proper CF-style coordinate variables and in recognition
1571        that any/all grid variables can be easily copied (eg. w/NCO) from
1572        the grid files into any of the other NetCDF files
1573      - *always* output grid variables with MDSIO (this will eventually be
1574        changed)
1575      - output MNC grid file if useMNC is true
1576    o every instance of _END_MASTER() has been found and replaced with
1577      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1578      preprocessors
1579    o re-arrange diagnostics pkg initialisation:
1580     - allow each package to extend the available diagnostics list
1581     - add some checking and fix small problems (multi-threaded, ...)
1582     - new S/R diagnostics_fill (replace fill_diagnostics):
1583       look through the short list of active diag. (instead of the long list)
1584       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1585    
1586    checkpoint57a_post
1587    o this set of changes restores TAMC compatibility
1588      tested for global_ocean.90x40x15 adjoint on trough
1589      (what a pain)
1590    
1591    checkpoint57a_pre
1592    o some modifs in tools/build_options for sunos
1593    o call ctrl_pack for ctrl at end for optimcycle=0
1594    
1595    checkpoint57
1596    o add horizontal bi-harmonic viscosity for vertical velocity
1597      - new parameter viscA4W (defaults to viscA4)
1598      - affects only non-hydrostatic code
1599      - to be done: no-slip lateral boundary conditions
1600    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1601    o implement Implicit Vertical advection for pTracers
1602    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1603      (implemented also for implicit vertical diffusion & advection)
1604    o OBCS: extend application of tracer open boundary conditions
1605      to a strip beyond the boundary of width Olx/Oly
1606    o add call monitor to TAF set of required calls (flow directives)
1607      and include in natl_box_adjoint
1608    o untangle a few ifdefs related to cost, ctrl, autodiff
1609      untangel a few ALLOW_ECCO_OPTIMIZATION
1610    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1611      (theta2, salt2 in ecco_cost_weights)
1612    
1613    checkpoint56c_post
1614    o OBCS as control variables
1615      - update ctrl_ad_diff.list, obcs_ad_diff.list
1616      - remove balance of obcs controls from default
1617      - fix index bug nobcs in ctrl_init
1618      - fix dummy fields filen in ctrl_pack
1619      - add dummy weights for obcs
1620    o lsopt: comment out fort.94 output
1621    o optim:
1622      - remove unnecessary header files
1623      - adjusted namelists
1624      - add xerbla.F to Makefile
1625    o exf:
1626      - multiple modifications of exf_check_range
1627      - unit change in exf_init_runoff from [m/year] to [m/s]
1628    o mdsio:
1629      - i/o-vector change debugLevel from debLevA to debLevB
1630    
1631    checkpoint56b_post
1632    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1633      is called from DO_THE_MODEL_IO
1634      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1635      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1636      - clean up PTRACERS_WRITE_TIMEAVE a little
1637    o add another verification experiment that tests both the cfc-pkg and
1638      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1639      reactive tendencies treated inline with regular timestepping
1640    o testreport previously did a lousy job of comparing small numbers, so
1641      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1642      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1643      testreport.
1644    o ptracers_monitor: bug fix for MPI
1645    
1646    checkpoint56a_post
1647    o GCHEM: finish reorganizating the package
1648      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1649        (introduces another 3D-array for each passive tracer, but only if
1650        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1651        gchemTendency is not needed because the timestep is done separately)
1652      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1653      - GCHEM is now---more or less cleanly---separate from PTRACERS
1654      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1655        so clear to me how that should be done in a general way.
1656    o CFC: improve formatting of output in CFC_ATMOS
1657    o PTRACERS:
1658      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1659        that ALL experiments with ptracers enable can be checked. This makes
1660        GCHEM_MONITOR obsolete.
1661      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1662        monitorFreq
1663      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1664    o add PTRACERS (PTR0[1-5]) to testreport output
1665    o exf_check_range:
1666      * default changed to .TRUE.
1667      * will check values for niter0 if debLevA, every timestep if debLevB
1668      * STOP in exf_check_range if 'out of range'
1669      * range chosen generous to allow for potential extema
1670      TBD: a version with stricter range
1671           permitted range would be runtime parameters
1672    o GMredi:
1673      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1674      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1675      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1676    o GCHEM:
1677      - move call to GCHEM_FORCING_SEP, so that it is now called before
1678        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1679      - introduced a useGCHEM runtime flag and applied it everywhere.
1680      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1681        this flag is now only visible within GCHEM-pkg routines.
1682      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1683        be replaced by a 3D array that is computed before thermodynamics; for
1684        this, the tracer ID iTracer had to be included into the parameter list
1685        of ptracers_forcing
1686      - set up forward_step to call gchem_forcing, that will replace
1687        gchem_forcing_int in ptracers_forcing
1688      - cleaning up
1689    o small cleaning of exch2: remove files that are also in eesupp/src
1690    
1691    checkpoint56
1692    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1693    o mnc: cleanup "full" files--fixes out-of-memory problem
1694    o ECCO-GODAE
1695      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1696      * fully merged and updated from SIO code
1697        windstress sign change affects
1698        - exf_inscal_[u/v]stress
1699        - sign of xx_tau[u/v] adjustments
1700        - signs in cost_scat
1701      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1702      * natl_box_adjoint updated and compressed
1703      * 2-level checkpoint switch added
1704        (tested in EXP. 1 of natl_box_adjoint)
1705      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1706    o SVD
1707      * first complete, non-hacked version for SVD calculations
1708      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1709        performed via direct access files admtlm_vector.it????
1710        (via ctrl_[un]pack)
1711      * optimcycle is used for ARPACK iteration counter
1712        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1713      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1714        and add linear transforms where necessary
1715      * controls are initial/final SST, SSS (can be extended; need to check
1716        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1717    o mdsio: filename info to both stderr, stdout
1718    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1719      from sign change
1720    
1721    checkpoint55j_post
1722    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1723      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1724    o add consistent build directories and .cvsignore files to verification
1725    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1726    o make all subroutines 30 or less characters in length for certain older
1727      compilers to work (a thorough search only turns up two routines in
1728      pkg/ptracers)
1729    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1730      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1731    
1732    checkpoint55i_post
1733    o change arrays for total vertical diffusivity (2.D if explicit,
1734      3.D if implicit) ; each ptracer uses its own background value.
1735    o added mnc/NetCDF output capability to ocn_compon_interf
1736      - added bits to verification/cpl_aim+ocn so that it can run on
1737        ITRDA and other clusters without the mpirun "-wd" option
1738    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1739      configuration
1740    o give MNC the ability to create additional files rather than
1741      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1742      - the default is just less than 2GB which is a practical limit
1743        on many systems
1744    o Compute the non-local term using either KPP vertical diffusivity (=default)
1745       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1746    
1747    checkpoint55h_post
1748    o add verification test "vermix"
1749    o remove all the *_ioinc flags and replace with the single global
1750      outputTypesInclusive flag
1751    o allow to set a vertical profile of vertical diffusivity for T & S
1752    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1753    o useMNC moved from data.mnc to data.pkg
1754    
1755    checkpoint55g_post
1756    o Renaming carbon AD experiments to comply with testreport conventions
1757    o Updating adjoint of Held-Suarez hs94.1x64x5
1758    o Fixing directives for non-ECCO forward_step, after ECCO directives
1759      have been fixed to avoid recomp. of do_oceanic_phys
1760      Works well for global_ocean.90x40x15,
1761      but recomp. issue remains for carbon
1762    o Updating adjoint output for natl_box_adjoint after
1763      pkg/ecco has been modified (see taga c55d_post)
1764    
1765    checkpoint55f_post
1766    o rename to timeave_init_fixed
1767    
1768    checkpoint55e_post
1769    o some delicate re-shuffle of store directives to avoid one
1770      extra call of do_oceanic_physics
1771      affects ecco_the_main_loop.F, do_oceanic_physics.F
1772      checkpoint_lev1_directives.h
1773    o NB: this may break global_ocean adjoint temporarily,
1774      but it is clear how to fix it. Will do later, need this now.
1775    
1776    checkpoint55d_post
1777    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1778    o ecco_cost_weights is modified to 1x1 runs
1779    o modifs to allow observations to be read in as
1780      single file or yearly files
1781    o enable to read exf forcing fields as either
1782      single file or yearly files (flag useExfYearlyFields)
1783    checkpoint55d_pre
1784    
1785    o switch between 2-level and 3-level checkpointing
1786    o add ability of MNC to write local and "partial" (eg. 2D slices where
1787      the full 3D field is never actually stored) arrays to NetCDF files
1788      with the correct (that is, the complete multi-dimensional) set of
1789      array indicies
1790      - used in mom_vecinv() to write the diagFreq output
1791      - tested (demonstrated) in verification/aim.5l_cs
1792    o further mnc-ification
1793      - add verification/lab_sea to the list with mnc setups
1794      - fix undefined mnc v-names in cd_code
1795      - add kpp to mnc output (both snapshot and timeave)
1796    o non-hydrostatic code
1797      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1798        in calc_gw.F
1799      - defaults to viscAh
1800      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1801        friction or Leith) in non-hydrostatic mode, as long as there is
1802        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1803    o pkg/cost
1804      extend simple cost functions to treat time mean quantities
1805      (T,U,V) via cost_accumulate_state from cost_tile
1806    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1807        be 2 times larger than the minimum size the advection scheme requires.
1808        now get a perfect conservation of salt in advect_cs test-exp (updated)
1809    o GGL90 (Gaspar's TKE mixed layer)
1810      - add horizontal diffusion of TKE, requires exchanges in
1811        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1812        default. In OPA there is no horizontal diffusion of TKE but the
1813        mixing coefficients are computed from a horizontal average of TKE of
1814        6 points or so. I think that diffusion has a little more physical
1815        justification.
1816      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1817        was in vain)
1818      - mask tke-variable in ggl90_init
1819    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1820    o fix biharmonic diffusion on CS-grid.
1821    o more obcs stuff
1822      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1823        for reading boundary values. This routine is called from
1824        obcs_prescribe_read
1825      - updated obcs_check
1826      - changed sponge layer relaxation parameter units for days to seconds
1827      - turned off sponge layer by default
1828      - changed argument list of OBCS_CALC to myTime+deltaTclock
1829      - fixed about 35 bugs in obcs_external_fields_load
1830    
1831    checkpoint55c_post
1832    o obcs stuff
1833      - new runtime flags useOBCSprescribe, useOBCSbalance
1834      - re-arranged obcs_calc
1835      - moved exf_getobcs to obcs_prescibe_read
1836        obcs_prescibe_read is called after ORLANSKI stuff
1837        and independent of it (executable can contain all).
1838      - updated obcs_check
1839      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1840        These may be necessary only if tangential velocities are
1841        prescribed at OB, not sure, needs testing.
1842    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1843      which simplifies the calls and passes the ifc check-bounds test
1844    
1845    checkpoint55b_post
1846    o add a 2D scalar, Z location, exchange_2 routine.
1847    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1848      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1849      affects advect_cs results (for the wrong reason): update output.txt
1850    o use a more standard discretization for biharmonic viscosity ;
1851     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1852      affects results of dome set-up: update output.txt
1853    o fix gad_advection.F (CubedSphere part), back to version 1.23
1854    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1855    
1856    checkpoint55a_post
1857    o merged code to
1858      * prescribe/read time-dependent open boundaries
1859        (works in conjunction with exf, cal)
1860      * sponge layer code for open boundaries
1861      * each boundary N/S/E/W now has its own CPP option
1862        (healthy for the adjoint)
1863    
1864    checkpoint55
1865    o up-to-date adjoint of previous breaks
1866      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1867      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1868      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1869      - carbon: * remove tr1-related adjoint verification
1870                * add ptracer as control variable
1871    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1872      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1873    
1874    checkpoint54f_post
1875    o in verification/carbin/ remove experiment related to
1876      ALLOW_PASSIVE_TRACER (array tr1 etc)
1877      code_ad/ input_ad/ results_ad
1878    
1879    o add two new packages
1880      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1881        + subject to optimization (memory)
1882      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1883        + subject to reordering (many GOTOs in the original code)
1884        + so far opps is called for every (i,j) point, and then operates in
1885          the vertical; one may want to reorder the scheme in order operate in
1886          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1887          fields)
1888    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1889      - all verification tests compile and run with linux_ia32_g77
1890      - defaults are compatible with current input files--nothing
1891        should change if you were not previously using MNC
1892      - MNC output has been added in numerous places (eg. timeave)
1893        but there are still a few writes not yet do-able with MNC
1894        (this is in progress)
1895      - flags now allow for either/or/both use of MDSIO and MNC and
1896        documentation will soon follow
1897      - numerous small formatting cleanups for ProTeX
1898    o add version info (via BUILD_INFO.h) to MNC and stdout
1899    
1900    checkpoint54e_post
1901    o add two new packages
1902      - pp81 (Packanowski and Philander, 1981), Richardson number and
1903        stratification dependent mixing
1904      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1905      - these scheme operate in a similar manner as KPP (without ghat, of
1906        course), however there is only one diffusivity that is used for both
1907        temperature and salinity (and passive tracers)ç
1908    o add offline package
1909    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1910      provided by Stephanie Dutkiewicz
1911    o genmake2: add ability to search for C compilers and cleanup test output
1912      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1913    
1914    checkpoint54d_post
1915    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1916    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1917      leading to additional shift by 5 days each year of integration
1918       (i.e. leading to considerable offset over the years)
1919    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1920    o start with no AB and no initial filtering (staggerTimeStep):
1921      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1922    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1923      (external loading & cpl import/export stay in forward_step.F)
1924    o update coupling interface to work with new staggerTimeStep
1925    o change MDSIO ptracers_pickup.
1926    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1927    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1928    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1929    
1930    checkpoint54c_post
1931    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1932      this affects (truncation error) output.txt of test-exp:
1933       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1934    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1935    o change Qnet to always be the net heat flux, (+upward).
1936      affects (truncation error) output of natl_box exp.: updated
1937    o define the max number of passive tracers in PTRACERS_SIZE.h
1938    o start to test mnc routinely in exp0
1939    o add sea-ice loading (sIceLoad) as a new forcing field.
1940    
1941    checkpoint54b_post
1942    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1943       impressive on Altix and Opteron systems)
1944    o diagnostics can now write NetCDF files through the mnc package
1945    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1946    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1947    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1948      affects (truncation error) output of lab_sea & natl_box exp.: updated
1949    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1950    
1951    checkpoint54a_post
1952    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1953    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1954    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1955    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1956      + internal_wave (shift in writing cg2d_ini_res)
1957    checkpoint54a_pre
1958    
1959    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1960      - modified verification/lab_sea and natl_box_adjoint accordingly
1961    
1962    checkpoint54
1963    checkpoint53g_post
1964    o prepare splitting of thermodynamics: store convect.counter in common block
1965    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1966      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1967    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1968    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1969    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1970    o restore adjointability
1971    
1972    checkpoint53f_post
1973    o modifications that affect AIM experiment results (update output.txt):
1974      - no advection of S at top interface Nr (pkg/generic_advdiff)
1975      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1976    o AIM pkg:
1977      - include stability function into surf.Flux derivative relative to Tsurf
1978      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1979    
1980    checkpoint53e_post
1981    o merged cylindrical coord configuration
1982    o added rotating_tank experiment
1983    checkpoint53e_pre
1984    
1985    checkpoint53d_post
1986    o faulks upgraded: re-generate output.txt that have changed:
1987       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1988    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1989    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1990    o added Sadourny discretization of Coriolis
1991      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1992      - re-enabled use of omega3 (useAbsVorticity)
1993    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1994      vector-invariant equations
1995      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1996    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1997      hopefully without new bugs
1998      - still to do: biharmonic friction for non-hydrostatic w
1999    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2000    o regenerated output for global_ocean_ebm (using -ieee)
2001    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2002      of mom_common/
2003      - simple re-arrangement of instructions within computing loop
2004    checkpoint53d_pre
2005    
2006    checkpoint53c_post
2007    o new version of coupler for AIM+thSIce and Ocean models
2008     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2009     - land: change Evaporation of snow
2010     - aim with thSIce: fix bug in snow-precip.
2011    o changes to calc_gw.F
2012     - bug fix for w^2 term near the bottom boundary
2013     - (hopefully) improve the lateral slip boundary condtions for use with
2014        partial/looped cells
2015      - because the bug fix changes two verification experiments anyway (exp5
2016        and plume on slope), change the lateral boundary condition from half slip
2017        to the value of no_slip_sides
2018    o ebm package wasnt quite up to the parallel task. Fixed that.
2019    o Adjoint of EBM package + verification
2020      * TLM OK
2021      * ADM not sufficient accuracy yet (needs further testing)
2022    
2023    checkpoint53b_post
2024    o Commiting new energy balance model to repository
2025      * package is pkg/ebm
2026      * verif. is verification/global_ocean_ebm
2027      * references are in ebm_driver.F
2028    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2029    C        Global thermohaline circulation. Part I:
2030    C        Sensitivity to atmospheric moisture transport.
2031    C        J. Climate 12(1), 71-82
2032    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2033    C        Global thermohaline circulation. Part II:
2034    C        Sensitivity with interactive transport.
2035    C        J. Climate 12(1), 83-91
2036    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2037    C        Destabilization of the thermohaline circulation
2038    C        by atmospheric eddy transports.
2039    C        J. Climate 7(12), 1870-1882
2040    o Will need long integration testing.
2041    checkpoint53b_pre
2042    
2043    o created pkg/mom_common in preparation for variable viscosity code
2044    o renamed and split ini_mnc_io
2045    o pkg/land: only liquid water can diffuse or run-off
2046    o AIM using land: soil wetness availability account for snow
2047    o added printMapIncludesZeros to EEPARMS namelist
2048    
2049    checkpoint53a_post
2050    o restore TAMC compatiility for exf_constants.h
2051      (no usage of _d in .h)
2052    o Additional storing in KPP in an attempt to fix
2053      TAMC problem with adjoint of KPP code.
2054      (no success...)
2055      Identical code works fine with TAF.
2056    o Fixed verification/natl_box_adjoint experiments.
2057      Initial conditions for Experiments 4 and 5 are now
2058      set to "SEAICE_initialHEFF=0", which is more reasonable,
2059      and hence gives results closer to that of Experiment 2.
2060      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2061    
2062    checkpoint53
2063    o stable checkpoint with up to date adjoint
2064      TLM tests only run for 1st grdchk at the moment. Its unclear if
2065      this is a code problem or a problem with resetting code for g_
2066      variables that is being autogenerated wrong.
2067      Otherwise:
2068       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2069       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2070         are both still in chaos following their security messes.
2071    
2072    checkpoint52n_post
2073    o various build (mostly genmake2) changes including:
2074      - ability to build/run more easily within Cygwin and MacOS X
2075      - more complicated Makefiles with a stronger dependence on Gnu Make
2076    o pkg/seaice modifications
2077      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2078        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2079        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2080      - changed proxy for geostrophic velocity and updated
2081        verification/lab_sea/results/* accordingly
2082      - removed ADI dynamic solver from pkg/seaice
2083      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2084        they caused a segmentation fault under certain circumstances
2085      - removed unused field WATR
2086    o bug fix in exf-package:
2087      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2088         now reflect that.
2089    o small fixes in the cal-package:
2090      - set reference date to first of January for the 'model'-calendar
2091      - failing of cal_CheckDate in cal_FullDate now actually results in a
2092        warning
2093    o small modifications in exf-package to increase flexibility:
2094      - change climtempfreeze from a constant to a runtime parameter that
2095        is specified in data.exf_clim (default = -1.9)
2096      - introduce runtime parameter windstressmax (default = 2.0) that is
2097        specified in data.exf
2098    o fix in pkg/thsice:
2099      - update Evap (Tsf changes) to be consistent with Latent heat flux
2100      - maintain snow precipitation unchanged (even if Tsf >=0).
2101     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2102    
2103    checkpoint52m_post
2104    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2105      this does not change any of the results, because myIter=0 in swfrac always
2106      lead to jwtype=2 (the default anyway), but the call makes little sense
2107      as a default
2108    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2109    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2110      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2111    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2112    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2113    o extending useSingleCpuIO option to work with new exch2 I/O format
2114      - old-style, missing-tile I/O is still accessible by defining CPP
2115        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2116    o monitor package can write to NetCDF files and/or STDOUT
2117    o fix re-definition bug in MNC_GRID_INIT_ALL()
2118    o doc/api_reference added
2119      - a framework for building an API Reference Manual using all
2120        the "protex" comments embedded in the code
2121      - see pkg/generic_advdiff, pkg/mnc for examples
2122    o MNC:
2123      - make myThid the last argument for all subroutines
2124      - new default for the grid files: NO halos
2125      - add useMNC and other run-time flags
2126      - separate per-file-group handling of the unlimited dimension
2127      - early initialization of MNC w/ flags read at the eeboot stage
2128        and lookup tables set in initialize_fixed
2129      - write all MNC output to a freshly-created directory
2130    o thermodynamics sea-ice (thsice) is now tested with testreport.
2131    o test exp. advect_cs: use the standard cs32 grid ; update output.
2132    o Added functionality to grdchk:
2133      pick global i,j,k position (or nearest wet) where to perform check.
2134    
2135    checkpoint52l_post
2136    o new land formulation:
2137      a) use ground enthalpy as prognostic variable to ensure exact
2138         energy conservation.
2139      b) account for water temperature and for latent heat of freezing
2140         in all processes (rain, run-off, ground storage)
2141      c) compute surface and ground temperature implicitly.
2142    o aim_v23 modification for new land model:
2143      a) Treat separately land / ocean / sea-ice surface fluxes
2144         to allow implicit computation of land & sea-ice surface temp.
2145      b) add snow precipitation.
2146    checkpoint52l_pre
2147    
2148    o fix problem (when 1 tile is empty) in min/max monitor.
2149    o fix bug in timeAve (u,vZetatave in common block)
2150    o no restoring terms under ice for pkg/seaice
2151    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2152    o bug fix for pkg/seaice pickups
2153    o change MNC call locations and add coordinate attributes
2154    o mask vorticity at the corner ; affects global_ocean.cs output
2155    o fix ini_curvilinear_grid ; test CS experiments with mpi
2156    o aim.5l_cs: modify sea-ice fraction input file ; update output
2157    o exf: Adding simple range check routine for exf fields after read
2158    
2159    checkpoint52k_post
2160    o removed top-level directory "diags"
2161      - we migrated these functions to pkg/timeave a long time ago
2162    o fixed bug introduced in pkg/monitor
2163    o accuracy ctrlprec = 32 insuffient for gradient checks using
2164      averaged fields (I/O via cost_averages)
2165      -> use ctrl.h in active_file*.F to control I/O precision.
2166    o paramter list of CALL ADTHE_MAIN_LOOP
2167    o added initial do_the_model_io to ecco
2168    o set all ...Freq to zero after cost_final
2169      taveFreq, dumpFreq, pChkptFreq
2170    o MAIN and ECCO differentiability restored
2171    
2172    checkpoint52j_post
2173    o fix nchklev in tamc.h for global_ocean...
2174    o Bringing flow and store directives up-to-date
2175    o Really weird thing!
2176      call do_the_model_io from the_main_loop with parameters
2177      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2178      TAF places a faulty re-call of initialise_varia
2179      after cost_final call which should not be there!
2180    checkpoint52j_pre
2181    
2182    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2183      error messages
2184    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2185    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2186      debug output
2187    o modfied mdsio_writefield.F to handle non-global files under exch2
2188    o update AIM Cubed-Sphere exp (aim.5l_cs):
2189      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2190    o update AIM Equatorial Channel exp:
2191      use standard aim_v23 pkg and change the SST fields to be more realistic.
2192    o globalFile now works with exch2
2193    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2194      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2195    o limit timeave output for hi-res integrations
2196    
2197    checkpoint52i_post
2198    o removed CPP_EEOPTIONS.h from verification/*/code
2199    o updated the tiling for global_ocean_pressure
2200    checkpoint52i_pre
2201    
2202    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2203      the old pkg/aim).
2204    
2205    checkpoint52h_pre
2206    o shortened offending lines in exch2_send_rx?.template
2207    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2208    o genmake2: add build & execute test for NetCDF code
2209    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2210      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2211    o added useSingleCPUIO flag to monitor.F and mon_out.F
2212    o added temporary hack for sea-ice dynamics on the cube:
2213      metric terms are ignored and it is assumed that
2214      there is no sea-ice on cube faces 1, 2, 4, and 5.
2215    
2216    checkpoint52f_post
2217    o added exch2 cube routines to pkg/exch2
2218    o modified hs94.cs-32x32x5 to use it
2219    o added new grid files to hs94.cs-32x32x5
2220    checkpoint52f_pre
2221    
2222    checkpoint52e_post
2223    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2224      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2225    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2226      to work with implicit vertical advection and AB ;
2227    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2228    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2229     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2230    checkpoint52e_pre
2231    
2232    o fix bug in impldiff when Nr=1 or Nr=2.
2233    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2234    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2235    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2236      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2237    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2238    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2239    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2240    
2241    checkpoint52d_post
2242    o re-tiled many expts to allow comparison in multi-processor mode
2243      - updated output accordingly
2244      - changed hs94.128x64x5 to use intial T from file rather than use the
2245        random number generator
2246    o add infrastructure in model routines for fizhi and gridalt packages
2247    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2248    o changes to permit hi-res, cubed-sphere, configuration
2249      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2250      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2251      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2252        of surface winds for the cube
2253      (A verification experiment, based on global_ocean.cs32x15, but with
2254       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2255       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2256       complete with example surface forcing files and matlab scripts to look
2257       at the output and compare it with that of global_ocean.cs32x15.)
2258    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2259       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2260       to conform to the common rule.
2261    o check-in the first version of the coupler + interfaces for multi-components
2262       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2263       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2264       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2265       - ocean and atmos. share the same horizontal grid (no interpolation).
2266       - exchanges between component and coupler is done in forward_step
2267    o new verification experiment, cpl_aim+ocn:
2268       coupled ocean - AIM atmosphere on cs32 grid.
2269    
2270    checkpoint52d_pre
2271    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2272    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2273    
2274    checkpoint52c_post
2275    o Fixing OPTIONS files for use of exf:
2276      - ALLOW_ECCO not needed
2277      - ECCO_CPPOPTIONS.h should not be included from
2278        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2279        as has been the case in the past
2280      - All cal/exf related options are currently set in
2281        single header file. Should remain so until we
2282        agree on a consistent new policy.
2283    o Removed all CPP options for cal package.
2284      cal has no more CPP options.
2285    o modified STOREs in GAD_ADVECTION
2286    o corrected key comp. for passkey
2287    
2288    checkpoint52b_post
2289    o new version: "thsice" of thermodynamic sea-ice pkg:
2290     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2291     - modify fluxes but do not change theta directly;
2292     - light cleaning of bulk_force pkg (still needed with thsice).
2293     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2294       + output_thsice.txt to test thsice & bulk_force pkgs.
2295    o put back grid & coriolis monitor output.
2296    checkpoint52b_pre
2297    
2298    o call "do_the_model_io" at the beginning (=> dump initial state)
2299    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2300    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2301      (need info on NUMBER_OF_PTRACERS)
2302    o missing PTRACERS headers in some routines
2303    o default tamc.h in pkg/autodiff supposed to crash
2304      to ensure proper customization
2305    
2306    checkpoint52a_post
2307    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2308      - moved surfaceTendencyTice from pkg/seaice to main code
2309      - subroutine FREEZE_SURFACE now limits only surface temperature
2310        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2311        => new output.txt for global_ocean.cs32x15 & global_with_exf
2312      - keep the old version of FREEZE for backward compatibility;
2313        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2314      - corresponding modifs for TAF directives
2315    o added surface flux output variables to TIMEAVE_STATVARS
2316    o time-averaged output for pkg/ptracers
2317    o fix problem with ECCO-related divided adjoint
2318      snapshot file was missing some ad-variables,
2319      but no warning issued by TAF
2320    
2321    checkpoint52a_pre
2322    o some bug fixes for #undef REAL4_IS_SLOW
2323    
2324    checkpoint52 = ecco_c52_e35
2325    o after testing adjoints of checkpoint51u_post
2326    
2327    checkpoint51u_post
2328    o this is the post-merge tag of the ecco-branch
2329      (needs another clean checkout and re-testing)
2330    o various natl_box_adjoint configs and results
2331      but no input fields
2332    o obcs adjoint not yet merged!
2333    o adding ECCO global 1x1 and 2x2 degree configs
2334    o updated/extended some store directives for seaice
2335    o pkg/ecco now containes ecco-specific part of cost function
2336    o top level routines the_main_loop, forward_step
2337      supersede those in model/src/
2338      previous input data.cost now in data.ecco
2339      (new namelist ecco_cost_nml)
2340    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2341    
2342    checkpoint51t_post
2343    o this is the pre-merge tag of the ecco-branch
2344    
2345    checkpoint51s_post
2346    o cleanup: removed various obsolete #define-s
2347    o pkg/grdchk
2348      - renamed 'ph-grd 3' to 'grad-res'
2349      - merged from ecco-branch
2350        (remaining bug fixes for obcs gradient checks)
2351      - additional high-precision output for testreport
2352        (grep for 'precision_grdchk_result')
2353    
2354    checkpoint51r_post
2355    o cleaned up or removed CPP_OPTIONS.h files
2356    o updated results for some of the tests to reflect the new
2357      optfiles (-ieee: -O0 instead of -O3)
2358    
2359    checkpoint51q_post
2360    o cd_code:
2361      - moved cd_scheme.F -> cd_code_scheme.F
2362      - separate read_checkpoint from cd_code_ini_vars.F
2363      - separated cd_code part from write_checkpoint
2364      - updated AD_SOURCE, generated .flow
2365      - added CD_CODE_VARS.h to the_main_loop
2366      - Moving cd_code specific store dir.s to pkg/cd_code
2367    o ctrl package totally restructured
2368      - pack/unpack now optional and decoupled from
2369        xx_/adxx_ I/O
2370      - ctrl_pack/unpack cleaned
2371        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2372      - confined inclusion of AD_CONFIG.h to where necessary.
2373    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2374    
2375    checkpoint51p_post
2376    o create initial cd_code package
2377      - WARNING: the initialization of fields within packages
2378        is broken because INI_FIELDS (where READ_CHECKPOINT is
2379        called) is called *before* PACKAGES_INIT_VARIABLES.
2380        This seems to be backwards since
2381        1) its important to initially zero the entire field including
2382           the "halo" region
2383        2) zeroing needs to be done *before* reading pickup info
2384           and the pickup call might or might not happen in any
2385           particular run
2386      - this needs an overhaul for R2
2387    o cleanup verification/*/code/GMREDI_OPTIONS.h
2388    o cleanup testreport
2389    
2390    checkpoint51o_post
2391    o bringing AD-related verif's up to date with genmake2
2392      - carbon/
2393      - global_ocean.90x40x15/
2394      - hs.94.1x64x5/
2395      - (front_relax/ )
2396    o (more) consistent directory structure for AD-related verif.'s
2397    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2398    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2399    o bug fix in find_alpha.F for MDJWF:
2400      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2401        change rho -> rho-rhoConst
2402      - replace call find_rho to find_rhonum
2403    o initialisation of rFlx extended to full array (required by TAF)
2404      and shifted to thermodynamics
2405    o removed PTRACERS.h in ptracers routine
2406    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2407    o Correcting initialisations for fVerU, fVerV.
2408    o helping TAF to recognize dependency on kUp for
2409      fVerU, fVerV
2410    o Replacing delZ by delR in pkg/ctrl/
2411    checkpoint51o_pre
2412    
2413    o undid all of cp51 pending some cleanups and discussion
2414    o added the [#include "AD_CONFIG.h"] statement to all files that need
2415       it for adjoint/tl #defines
2416     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2417     o removed tools/genmake since it no longer works
2418    
2419    checkpoint51n_post
2420    o modifications to make FREEZE flux visible to pkg/kpp
2421      - moved surfaceTendencyTice from pkg/seaice to main code
2422      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2423      - subroutine FREEZE now limits only surface temperature
2424        (this means new output.txt for global_ocean.90x40x15,
2425         global_ocean.cs32x15, and global_with_exf)
2426    o added surface flux output variables to TIMEAVE_STATVARS
2427    
2428    checkpoint51n_pre
2429    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2430    o added [#include "AD_CONFIG.h"] to all files that use the following
2431      defines:
2432      - ALLOW_ADJOINT_RUN
2433      - ALLOW_TANGENTLINEAR_RUN
2434      - ALLOW_ECCO_OPTIMIZATION
2435    
2436    checkpoint51m_post
2437    o incorporating changes to get TAMC/TAF working in genmake2
2438      - added new TAMC/TAF targets to the Makefile
2439      - various cleanups related to package handling
2440      - these changes should have no impact on the forward model
2441    
2442    checkpoint51l_post
2443    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2444     - faster algorithm for cal_addtime.F
2445     - higher precision arithmetic, where needed
2446     - pkg/exf *startdate variables changed from calendar date to
2447       model integration time
2448    
2449    checkpoint51l_pre
2450    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2451    o enable to apply restoring on S & T only in a latitude band.
2452    o update output (external_forcing_surf modif. change truncation errors)
2453       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2454    
2455    checkpoint51k_post
2456    o change default to: useNHMTerms=.FALSE.
2457     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2458       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2459     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2460        exp1, ideal_2D_oce
2461     - change data file of oceanic exp (leave the results unchanged for now)
2462       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2463    o set gravitySign automatically according to the vertical coordinate used
2464      (and change sign: back to "logical" value: +1 when R increases downward)
2465    o added an include barrier to the default CPP_OPTIONS.h and
2466      removed the #include "PACKAGES_CONFIG.h" from it
2467    o fix a bug in mom_fluxform (from chk51j_post)
2468    
2469    checkpoint51j_post
2470    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2471    o adjusted some flow directives (dynamics, thermodynamics)
2472    o added cubed-sphere case to test cost function
2473    o heckpoint_lev?_directives.h now include
2474      pkg-specific directives, whenever those are enabled.
2475    o Moving pkg-specific flow directives to corresponding pkg
2476      Moving pkg-specific differentiation list to corresponding pkg
2477      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2478      ---> conventions are
2479           - pkg_ad.flow
2480           - pkg_ad_diff.list
2481           - pkg_ad_check_lev?_dir.h
2482    
2483    checkpoint51i_post
2484    o merge of the branch-genmake2
2485      - knowingly breaks the older genmake
2486      - automatic generation of all ALLOW_${PKG_NAME} defines
2487      - new testreport supersedes older testscript
2488    o large number of package inclusion and header cleanups
2489    checkpoint51i_pre
2490    
2491    o new output for adjoin of global ocean vector invariant
2492    o fix for checkpoint of thermodynamic seaice and bulk_force
2493    o Steph gchem various cleanups
2494    
2495    checkpoint 51h_pre
2496    o fixed some single quotes
2497    o modify gchem pkg to be more versatile
2498    o modifications to clean up dic pkg
2499    o add pkg/cfc
2500    
2501    checkpoint51g_post
2502    o provide links for ARPACK and ADM*TLM
2503    o start removing verification/vero/
2504    o update AD-related stuff
2505      (in particular some IF-statements in model/src/ routines)
2506    o adding to verification/global_ocean.90x40x15/ adjoint of
2507      vector invariant setup
2508    
2509    checkpoint51f_post
2510    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2511    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2512      of tracer Green's fucntions for ocean inversion project.
2513    
2514    checkpoint51f_pre
2515    o Added on-the-fly spatial interpolation capability
2516        "USE_EXF_INTERPOLATION" to pkg/exf.
2517      - This is a temporary Cartesian-grid hack until
2518        the super-duper ESMF coupler becomes available.
2519      - See verification/global_with_exf/README for usage example.
2520      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2521        flags and modified pkg/seaice accordingly.
2522    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2523        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2524        non-local transport term.
2525    
2526    checkpoint51e_post
2527    o pkg/mom_vecinv:
2528      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2529      - add time-ave diagnostic of vorticity advection.
2530    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2531    o atmospheric geopotential: - include water vapor effect;
2532                                - use p^kappa in p* scaling.
2533    o land pkg: read initial state from files.
2534    o AIM : add stratospheric drag in the upper level
2535    
2536    checkpoint51d_post
2537    o change function ILNBLNK (=> last non-blank char.) to return zero
2538      (instead of the string length) when the string. char is empty
2539    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2540    o modif's to restore TAMC compatibility
2541      - avoid "_d" constructs in PARAMETER declarations
2542      - avoid interrupting lines by comment lines
2543    o Use cluster local disks for purely local I/O
2544      vs. globally visible disks needed for ctrl stuff
2545      (merged from ecco-branch)
2546      - new active_file_loc... and mdsio_..._loc routines
2547      - affected packages: autodiff, ctrl, grdchk, mdsio
2548    
2549    checkpoint51c_post
2550    o introducing integer flag debugLevel
2551      - debLevZero: suppress all output
2552      - debLevA: standard
2553      - debLevB: equivalent to current debugMode=.TRUE.
2554    o introducing pathname variable mdsioLocalDir for mdsio
2555      that can be specified at runtime
2556      (relevant for cluster I/O to local disk)
2557    `
2558    >>>checkpoint51b_post
2559    adjoint of ptracers
2560    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2561    o extended state in checkpoint_lev?, etc.
2562    o alternative ctrl/cost with tr1 or ptracer
2563    o new comlev1_bibj_ptracers
2564    o new ptracers.flow
2565    o made ptracers_forcing same as external_forcing_s
2566    o added verification for adjoint with ptracers
2567      - adm. grdchk fail so far
2568      - tlm. grdchk OK
2569      - checked tapelev/comlev recomputations: OK
2570    <<<checkpoint51b_pre
2571    
2572    checkpoint51a_post
2573    o added code for biogeochemistry package
2574      - new pkgs: dic, gchem
2575      - new subroutine in ptracers
2576    o modify code for biogeo packages
2577      - in model/src and pkg/ptracers
2578    
2579    checkpoint51
2580    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2581      - autodiff, ctrl, exf, grdchk, seaice
2582      kept separate packages
2583      - cost, ecco, obcs
2584    o updating verification/internal_wave, verification/lab_sea
2585      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2586    
2587    checkpoint50i_post
2588    o Preparing next differentiable checkpoint and sync
2589      of MAIN vs. ecco-branch
2590      - 1st step: this one is differentiable
2591      - 2nd step: next(! not this) checkpoint will have updated packages
2592                  from ecco-branch)
2593    
2594    checkpoint50h_post
2595    o new package "land": provide surface BC for AIM.
2596    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2597    o AIM: use true log-P extrapolation for near surface temp (= as in
2598        F.Molteni paper) ; update aim.5l_cs output.
2599    o New variable in PARM03 for more flexible pickups
2600    o somewhat cleaned package initialisation sequence for
2601      ctrl/ cost/ ecco/ in packages_... routines
2602    
2603    checkpoint50g_post
2604    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2605      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2606      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2607        made the default because of faster convergence than ADI
2608    
2609    checkpoint50f_post
2610    o exf totally restructured
2611      - replaced all exf_set_ routines by one generic exf_set_gen.F
2612        and made sure it's still differentiable
2613      - split exf_getffields.F into new exf_bulkformulae.F
2614      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2615      - updated adjoint/makefile and relevant verif. accordingly
2616    
2617    checkpoint50f_pre
2618     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2619          + change Evap over land. (update aim.5l_cs output)
2620     o added missing .cvsignores and made uniform across expts
2621     o changed configuration of tidal_basin_2d expt
2622     o added pkg/debug functions for tracing code in fatal crashes
2623     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2624     o new fn in pkg/monitor to stop model if solution grows too big
2625     o removed lots of single quotes from comments
2626    
2627    checkpoint50e_post
2628    o make KPP work with PTRACERS
2629     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2630       nearly a copy of kpp_transport_s
2631     - there is no analogue to SurfaceTendencyS, so I have to use
2632       gPtr(of the surface layer) instead
2633    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2634    checkpoint50e_pre
2635    
2636    checkpoint50d_post
2637    o change kpp output from multiple-record state files to single-record state
2638      files analogous to write_state.F
2639    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2640      analogous to the cg2d-related output.
2641    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2642      so that writing to internal file fn (with length 512) fails.
2643    checkpoint50d_pre
2644    
2645    checkpoint50c_post
2646    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2647    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2648    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2649    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2650    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2651    
2652    checkpoint50c_pre
2653    Merging from release1_p13:
2654    o bug fix for pkg/seaice dynamic solver
2655    o Added SEAICE_initialHEFF to pkg/seaice
2656    
2657    checkpoint50b_post
2658    o store u*,v* in gU,V instead of in guNm1,gvNm1
2659    o in order to put the momForcing out of the Adams-Bashforth:
2660      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2661      to timestep.F
2662    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2663    o re-generate output for highly sensitive test-exp:
2664       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2665    
2666    checkpoint50b_pre
2667    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2668    o corrected CPP option mismatch in exf_Bulk... functions for case
2669      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2670    
2671    checkpoint50a_post
2672    o Bug fix for merging between c50 and KPP.
2673      ikey was passed from thermodynamics to kpp_calc via
2674      common block rather than being recomputed in kpp_calc,
2675      in contradiction with new key itdkey.
2676      New key ikppkey created, and tamc.h headers updated.
2677    
2678    checkpoint50
2679    - 2nd step of merge with ecco-branch:
2680      merge changes in ecco-branch back into main trunk
2681    - bug fix in find_alpha
2682    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2683    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2684    - merged some sliced AD support routines
2685    
2686    checkpoint49
2687    merged from ecco-branch:
2688    o exf:
2689      - Enable initialisation of forcing fields to constant
2690        (runtime) values.
2691      - in exf_getffields.F
2692        Reduce i-/j-loop to interior domain, discarding overlaps.
2693        That also fixes wrong TAF-key computations for key_1, key_2
2694        with bulf formulae.
2695      - exf_init.F modify #ifdef for exf_init_evap
2696      - exf_getffieldrec.F, ctrl_getrec.F
2697        The following INT-usages are not safe:
2698          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2699          fldcount = int(fldsecs/fldperiod) + 1
2700        and were modified.
2701    o autodiff: checkpoint_lev...
2702      - updated storing for bulk formulae (some arrays were missing)
2703      - added state for seaice package
2704      - synchronized with main branch
2705    o DIVA:
2706      Modif.s in
2707      - the_main_loop.F
2708      - the_model_main.F
2709      and added cost_final_restore.F cost_final_store.F
2710      o With these changes, it is possible to fully separate
2711        the first forward run to compute the cost function (mdthe_main_loop)
2712        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2713        into separate model executions.
2714        This enables better tuning of DIVA to given queue sizes.
2715      o Loss of cost function value in consecutive DIVA runs is
2716        fixed by storing to 'costfinal' file.
2717      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2718        beginning/end of adjoint integration is accounted for.
2719      The current changes apply to TAF-1.4.26.
2720      TAF has one remaining bug, requiring one manual change
2721      (see MITgcm manual).
2722    o cal: synchronized between MAIN and ecco-branch
2723    
2724    checkpoint48i_post
2725    o Changes to restore differentiability of code w.r.t. previous tag
2726      (mostly adding new routines to make list and replacing
2727      pressure by totPhiHyd).
2728    o Updated and merged grdchk package
2729      - has both ADM and TLM checks
2730      - works for single- and multi-proc.
2731      - output cleaned
2732      - worked successfully for parallel DIVA
2733    o genmake:
2734      - Adding -platform=SP4
2735      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2736    o Modif. for DIVA:
2737      ctrl_unpack should not be called in intermediate DIVA interval.
2738      (similar thing would apply for active files such as
2739      tbar, sbar, psbar, which should not be reinitialised;
2740      only relevant for ecco-branch)
2741    
2742    checkpoint48h_post
2743    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2744    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2745    o Added SEAICE_initialHEFF to pkg/seaice
2746    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2747    
2748    checkpoint48g_post
2749    --- EOS:
2750    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2751      store total Potential in totPhyHyd for diagnostics & EOS.
2752    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2753    --- Pressure/geopotential gradient:
2754    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2755    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2756      ( changes results of global_ocean_pressure )
2757    o NLFS + z-coord.: add eta*Rho' contribution.
2758    o accurate phiHyd when using interface-W at the middle between 2 centers
2759     ( changes results of ideal_2D_oce )
2760    o includes r* 2nd term in potential gradient.
2761    
2762    checkpoint48f_post
2763    Merging from release1_p12:
2764    o Modifications for using pkg/exf with pkg/seaice
2765      - improved description of the various forcing configurations
2766      - added basic radiation bulk formulae to pkg/exf
2767      - units/sign fix for evap computation in exf_getffields.F
2768      - updated verification/global_with_exf/results/output.txt
2769    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2770      (SBO) core products, including oceanic mass, center-of-mass,
2771      angular, and bottom pressure (see pkg/sbo/README.sbo).
2772    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2773      to avoid negative values in shallow regions.
2774      - updated verification/natl_box/results/output.txt
2775      - updated verification/lab_sea/results/output.txt
2776    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2777    o Added useSingleCpuIO option (see PARAMS.h).
2778    o Updated useSingleCpuIO option in mdsio_writefield.F to
2779      work with multi-field files, e.g., for single-file pickup.
2780    o pkg/seaice:
2781      - bug fix in growth.F: QNET for no shortwave case
2782      - added HeffFile for specifying initial sea-ice thickness
2783      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2784    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2785      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2786    o pkg/seaice:
2787      - adjoint-friendly modifications
2788      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2789    
2790    checkpoint48e_post
2791    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2792    o dynamics: change definition of computational domain & adapt mom_fluxform
2793      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2794    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2795        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2796        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2797        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2798        inverted_barometer solid-body.cs-32x32x1
2799      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2800    
2801    checkpoint48d_post
2802    o in preparation for r*:
2803     a) use pre-computed gradient of hydrostatic potential:
2804        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2805     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2806        => affects results of glob_oce_pressure (different truncation error)  
2807      update output.txt of ideal_2D_oce & global_ocean_pressure
2808    
2809    checkpoint48d_pre
2810    o in preparation for r*:
2811      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2812      pass the 2 comp. of the grad. as arguments to momentum S/R.
2813      but for the moment, only used if it does not change the results.
2814    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2815    
2816    checkpoint48c_post
2817    Modifications in treatment of initial flux forcing controls
2818    to avoid extra storing of flux fields.
2819    
2820    checkpoint48c_pre
2821    o Added tidal_basin_2d experiment (currently 1D!)
2822    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2823    
2824    checkpoint48b_post
2825    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2826     (modification to pressure gradient not yet implemented)
2827    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2828      (for U & V) that are used for vertical advection of momentum.
2829    
2830    checkpoint48a_post
2831    o In preparation for r*, use temp. array to compute vertical transport
2832       in flux-form momentum pkg. => change results of few test-exp.
2833      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2834                        lab_sea, natl_box & plume_on_slope
2835    
2836    checkpoint48
2837    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2838    
2839    checkpoint47j_post
2840    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2841    o moved adexch from forward_step to addummy_in_stepping
2842    o added exch in ctrl_map_...
2843    o aveFreq.=0. at end of cost_final to avoid overwrite in
2844      reverse checkpointing loop
2845    o Yet more changes in gmredi:
2846      * adgmredi_calc_tensor
2847        avoiding all recomputation of gmredi_slope_limit
2848      * adgmredi_x/y/rtransport
2849        added flag for excessive storing to avoid recomp. of
2850        u/v/rtans, dTdx/y/z
2851        -> this is not really necessary and very memory-consuming
2852      * adgmredi_slope_psi:
2853        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2854      * gmredi_slope_limit
2855        re-activated full calculation of taperfct for case 'ac02'
2856    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2857    
2858    checkpoint47i_post
2859    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2860    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2861      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2862    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2863    o gmredi: fix few bugs.
2864    
2865    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2866    This will be a good checkpoint to plug into the ecco-branch.
2867    o few modif.'s to get latest version adjointed
2868      (mainly kick out code in ini_linear_phisurf)
2869    o modif's to run adjoint with exactConserv
2870    o case GM_BOLUS_ADVEC should be cleaned
2871      S/R gmredi_slope_psi should be cleaned
2872    o verification/carbon now has exactConserv=.TRUE.
2873    
2874    checkpoint47g_post
2875    o time-average AIM output: becomes independent from statvars time-average
2876      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2877    o After TAF bug fix:
2878      Tested adjoint of gmredi package.
2879      Tests were done with checkpoint47 rather than with latest
2880      checkpoint47f_post since the latter is broken for the adjoint
2881      verification/carbon/ contains both ADM and TLM gradient checks.
2882    Here they are, before they get changed/lost/stolen.
2883    Mostly modif.'s to fix numerical sensitivities.
2884    Gradient checks OK for
2885    - GM_taper_scheme:
2886      * clipping
2887      * ac02
2888      * linear
2889      * glw91
2890      * dm95
2891      * ldd97
2892    - GMREDI_OPTIONS:
2893      * GM_VISBECK_VARIABLE_K
2894      * GM_NON_UNITY_DIAGONAL
2895      * GM_EXTRA_DIAGONAL
2896      * GM_BOLUS_ADVEC
2897    in conjunction with data.gmredi parameters to be checked in
2898    in a few minutes under verification/carbon/code/
2899    
2900    checkpoint47f_post
2901    Merging from release1_p10:
2902    o modifications for using pkg/exf with pkg/seaice
2903      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2904        and SEAICE_EXTERNAL_FLUXES
2905      - pkg/exf CPP options EXF_READ_EVAP and
2906        EXF_NO_BULK_COMPUTATIONS
2907      - usage examples are Experiments 8 and 9 in
2908        verification/lab_sea/README
2909      - verification/lab_sea default experiment now uses
2910        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2911    
2912    checkpoint47e_post
2913    o created a tag prior to creating a branch
2914    
2915    checkpoint47d_post
2916    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2917      at the bottom boundary had an erroneous half slip boundary condition
2918    o added bottom drag and no slip boundary condition capabilities to
2919      oceanic pressure coordinates code
2920    o added new verification experiment global_ocean_pressure, this experiment is
2921      also described in the tutorial section of the manual
2922    checkpoint47d_pre
2923    
2924    checkpoint47c_post
2925    o Added a verification experiment for a global cubed-sphere ocean run
2926      -  verification/global_ocean.cubed32x32x30
2927      -  uses pkg/therm_seaice and pkg/bulk_forcing
2928    
2929    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2930    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2931      when using P-coordinate; only implemented for atmospheric config.
2932    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2933      NOTES: requires option NONLIN_FRSURF to be "#define".
2934    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2935    
2936    checkpoint47b_post
2937    Merging from release1_p9:
2938    o pkg/seaice
2939      - removed GOTO's and added taf directives
2940      - double precision constants to reduce the g77 (Linux)
2941        to F77 (SGI) differences reported in release1_p8
2942    o tools/genmake
2943      - added SGI options
2944    o verification/testscript
2945      - updated to that of checkpoint47a_post
2946    o verification/global_ocean.90x40x15/input/eedata
2947      - modified for SGI f77 compatibility
2948    o verification/lab_sea
2949      - added description of sea-ice model
2950      - added missing matlab routines
2951      - added test of thermodynamics parallelization
2952    
2953  checkpoint47a_post  checkpoint47a_post
2954  o new pkg: aim_v23  o new pkg: aim_v23
2955   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
# Line 13  o new pkg: aim_v23 Line 2960  o new pkg: aim_v23
2960  o add diagnostic of surface correction term in monitor output  o add diagnostic of surface correction term in monitor output
2961    
2962  o bulk_force and therm_seaice  o bulk_force and therm_seaice
2963    - Two packages:  bulk_force (Bulk forcing)
2964      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2965    - Earlier integration from Stephaine Dutkiewicz
2966      and Patrick Heimbach.
2967    - Two ifdef statements for compile time,
2968       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2969    
2970  checkpoint47  checkpoint47
2971  differentiable version of checkpoint46n_post  differentiable version of checkpoint46n_post

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