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revision 1.76 by jmc, Fri Jul 12 14:52:08 2002 UTC revision 1.962 by mlosch, Wed Feb 27 04:35:59 2008 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/shelfice:
8      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
9        (kg/m^2/s), does not break tests, because in verification/isomip,
10        rhoConstFresh=rhoConst (by accident)
11    o add a flag writePickupAtEnd (default=true) to be able to suppress
12      writing a pickup at the last timestep
13    o pkg/profiles:
14      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
15      (for "less than 32 characters name" compiler requirement)
16    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
17      conditions that have a different sampling frequency than S/T/U/V obcs
18    o pkg/diagnostics (stats-diags):
19      - fix global Min/Max in case 1 processor get only empty tiles
20    o genmake2: replace (4 times)
21         make genmake_tc_1.o >> genmake_warnings 2>&1
22      with
23         COMM="$CC $CFLAGS -c genmake_tc_1.c"
24         echo $COMM >> genmake_warnings
25         $COMM >> genmake_warnings 2>&1
26      to make genmake2 always see the value of CC as specified in the optfile.
27    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
28      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
29      - modify verification advect_cs test to test SOM-advection on CS-grid.
30    o pkg/ctrl:
31      - Rewrite of ctrl_map_ini_ecco.F,
32        introducing a generic routine (ctrl_map_ini_gen.F).
33      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
34    
35    checkpoint59n
36    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
37      number in dedicate array "hdiag":
38      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
39        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
40      - many small changes (integer format) for large number of diagnostics
41      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
42        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
43    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
44      usingSphericalGrid, this allows to define the rotated grid coordinates
45      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
46      geographical coordinates according to the inverse of the rotation defined
47      by the Euler angles, so that Coriolis parameter and online-interpolation by
48      exf works with the geographical coordinates on XC/YC/XG/YG.
49      Naturally, this feature does not work with all packages, so some
50      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
51      profiles), because there the coordinates are assumed to be regular
52      spherical grid coordinates.
53    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
54      - introduce isopycnal diffusion coefficient control.
55    o tools/adjoint_options:
56      - additional control vector components.
57    o pkg/mnc: have mnc create marginally meaning full coordinate variables
58      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
59    o pkg/mypackage:
60      - add example of read/write pickup for state-var ;
61      - add entry points to the main code for state-vars diags & write-pickup.
62    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
63      transitions for useExfYearlyFields
64      - add new subroutine that determines the file to read from for
65        use*YearlyFields = .TRUE. and .FALSE.
66      - add a verification experiment to global_with_exf that tests
67        useExfYearlyFields with USE_EXF_INTERPOLATION defined
68    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
69      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
70      subroutines (which could be generated from a template, because they are
71      almost identical), for now they are included in obcs_prescribe_read.F for
72      simplicity
73    o pkg/exf:
74      - add a little more diagnostic to exf_interp_read (in analogy to
75        mds_read_field, can be turned off with debugLevel < debugLevA=1)
76      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
77        ugly but fast by unrolling short inner loops, inserting a unroll=8
78        directive in routine lagran, and splitting a loop and making do while the
79        outermost loop (the latter requires the intoduction of index arrays)
80    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
81    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
82      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
83    o verification/seaice_obcs: updated for restart test and latest options
84    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
85      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
86      for now this is only available for the C-grid code and also within
87      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
88    
89    checkpoint59m
90    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
91      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
92    o gad_som : fix flux output (& diagnostics) to have same units as other  
93      advection scheme fluxes (was previously multiplied by deltaT).  
94    o added verification/seaice_obcs both to test seaice open boundaries
95      and to provide an example matlab scrpt for generating them
96    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
97    o pkg/salt_plume: clean up salt_plume_frac.F to
98      remove redundancy in PlumeMethod 1 and 4
99    o pkg/kpp: added saltplume diagnostics
100    o pkg/obcs and pkg/seaice:
101      - do not set uice and vice to zero when OB*icefile are unspecified
102      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
103      - moved seaice tracer obcs after call to seaice_growth
104    o pkg/salt_plume: added various options for salt plume depth
105      criterion and for vertical distribution of the salt
106    
107    checkpoint59l
108    o pkg/ptracers: new version of ptracers pickup:
109      read meta file and write only fields which are needed to restart.
110      ( same logic as main pickup file ; also using pickupStrictlyMatch )
111    o pkg/seaice:
112      - add timescale for melting due to warm mixed layer as a means of
113        setting SEAICE_availHeatFrac more conveniently
114      - add a CPP-flag/runtime parameter check for flooding algorithm
115      - reformulated availHeat in seaice_growth.F to be independent of AREA
116    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
117      unit changes
118    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
119    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
120      SX vector computer.
121    o pkg/seaice:
122      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
123        seaice forcing fields can now be read only through pkg/exf
124      - removed some unused halos
125    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
126    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
127      or U/VICE from U/VWIND before computing U/VSTRESS
128    
129    checkpoint59k
130    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
131      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
132    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
133      all experiments pass when compile with un-initialised var. checking option.
134    o added pkg/salt_plume
135    o script to test restart (for now, in MITgcm_contrib/jmc_script)
136    o pkg/seaice: new read/write pickup version.
137      read meta file and write only fields which are needed to restart.
138      ( same logic as main pickup file ; also using pickupStrictlyMatch )
139    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
140    o lab_sea.hb87: modify the domain & update output.hb87.txt :
141      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
142      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
143      process. Fixed here by closing the domain at the Northern boundary.
144    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
145    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
146      a set of consecutive levels in/from a 3-D array.
147    o pkg/ptracers:
148      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
149      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
150    
151    checkpoint59j
152    o in pkgs: dic, obcs, offline, rbcs:
153      standard way to compute coeff. for time interpolation between 2 time reccords
154      which retains full precision (& make results less dependent on compiler).
155      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
156    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
157      packages instead of reading ice cover and wind speed separately
158    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
159     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
160      to allow to compile customized code before the update)
161    o cleaning-up:
162      - fix CPP instruction syntax in pkg/obcs
163      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
164        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
165      - fix some threads issue in IO parts.
166    o pkg/dic:
167      - add tons of "_d 0" (--> much better testreports !)
168       and then update outputs of tutorial_global_oce_biogeo
169    o pkg/mom_fluxform:
170      add a special version of momentum advection intended to conserve momentum
171      next to a bathymetry step or a coastline edge. (default = off = #undef)
172    o new read/write pickup version:
173      - for now, only implemented for main (mdsio) pickup file.
174      - write out only what is needed to restart; merge pickup_nh , pickup_ph
175        and main pickup together.
176      - read meta file; read only what is needed to restart; stop if a field
177        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
178        if it make sense (even if the restart is not perfect).
179      - if no meta file, assume that pickup to read corresponds exactly to
180        a pickup that would currently be written.
181      - read pickup written in the old format (until checkpoint59i) if it
182        recognizes an old meta file (no field-list).
183      - add a meta file in exp. which starts from a pickup: 2 cases:
184        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
185         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
186        b) a meta file describing the content of the associated pickup file
187         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
188    o pkg/mdsio & pkg/rw:
189      - new routine to read a meta file ; new set of routine to read
190        Multiple-fields file (with meta file).
191    o added open boundary conditions capability for seaice
192        HSNOW, HSALT, UICE, and VICE
193    
194    checkpoint59i
195    o adjoint:
196      * fix multiDimAdvection adjoint
197        (partial recomputation problem by TAF for fVerT(:,:,kDown)
198        and comlev1 size definition (maxpass vs. max. number of tracers)
199      * verification/global_ocean.90x45x15 adjoint now tests
200        NLFS and multiDimAdvection using DST3 (=30)
201      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
202    o pkg/kpp: add "_d 0" to real constant (if missing);
203      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
204      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
205    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
206      for internal parameters related to restart process (formerly from PARAMS.h)
207      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
208    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
209      as argument. (only atm2d & obcs write_pickup have not yet been updated)
210    o pkg/monitor:
211      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
212      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
213      - account for deep Atmosphere factor and density factor (anelastic)
214    o added open boundary conditions capability for seaice HEFF and AREA
215    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
216      thermodynamics
217      - requires a little reorganization, which affects the testreport results
218        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
219        so that now the conservative form is tested
220      - add a few comments
221    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
222    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
223    o add new diagnostics to seaice: advective, diffusive fluxes (only for
224      multidim-advection, for scheme 2 they are not filled) and transports,
225      thermodynamic growth rates
226    o change units of EmPmR (inside the code, + within coupling interface)
227      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
228      Affects results @ truncation level (cg2d match) and update output of
229       experiments: lab_sea(6), global_ocean.90x40x15(10),
230      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
231      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
232      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
233      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
234    
235    checkpoint59h
236    o pkg/exf:
237      - improve vectorization by moving if-statement out of loops in
238        exf_mapfields, exf_radiation
239      - exf_bulkformulae.F: introduce 2D fields and vectorize code
240    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
241    o testreport:
242      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
243        monitor & update offline_exf_seaice exp. output.
244      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
245    o pkg/seaice:
246      - bug fix in the evp solver: boundary conditions were affected be
247        masking of zMax/zMin (changes results)
248      - minor bug fix in boundary conditions in seaice_calc_strainrates
249        (changes results for no_slip)
250      - seaice_lsr.F: make interpolation of eta dependent on boundaries
251      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
252      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
253        stress formulation and no-slip boundary conditions
254    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
255      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
256    o pkg/seaice: a first HSALT time stepping equation has been checked in
257    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
258      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
259      without requiring DO-IF statements
260    o pkg/thsice:
261      use continuous power-law function for partition of energy between lateral
262      melting/freezing and thinning/thickening ; old code using step function
263      still available with #undef THSICE_FRACEN_POWERLAW
264      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
265    o testreport: change AD testing : check against results/output_adm.txt
266      using same scripts as for forward test.
267    
268    checkpoint59g
269    o adjoint testing: in preparation for changing testreport:
270      - output format: cost and grad written on separated lines
271      - ad output results in directory "results" (instead of "results_ad")
272    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
273    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
274    o pkg/ecco: allow user defined cost function contributions
275    o testreport:
276      Allow to choose (per experiment) the list of tested output variables
277       and the main variable (used to issue a pass/FAIL ) ;
278      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
279      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
280      Also modify printing of summary:
281       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
282       b) echo the list of tested variables in the individual summary.txt of
283          each experiment.
284    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
285      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
286      (but still depend on the tile decompostion of the domain).
287    o pkg/seaice: change a discretization detail to make the B-grid code
288      "more symmetric". This change is likely to remove all "ridges/leads" that
289      where quasi-aligned with the grid in B-grid solutions. It may also be
290      the solution to the stress coupling issues with the B-grid.
291    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
292      remove .cvsignore from input dir. (since testreport no longer run here).
293    o pkg/thsice:
294     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
295     - fix reshaping of sea-ice just after advection:
296       melt all the ice only if ice-volume is too small.
297     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
298       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
299     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
300    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
301      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
302    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
303      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
304      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
305      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
306      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
307      -> update output.txt
308    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
309     this affects truncation error: -> update output.txt of exp:
310      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
311      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
312    
313    checkpoint59f
314    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
315    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
316      a bounded range (in forward mode)
317    o pkg/ecco, ctrl, autodiff and mom_common:
318     internal parameter controls, completements of implementations
319    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
320    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
321      (not seem any difference in testing results).
322    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
323       at face corners.
324    o pkg/generic_advdiff:
325     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
326      loop range indices for computing vertical advection tendency
327      and do the calculation in the interior only (no overlap) ;
328      for now, only implemented for SOM advection (to save CPU time).
329     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
330    o exch2 adjoint
331      First set of changes:
332      - add exch2 hand-written adjoint templates
333      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
334        This will require cleanup in pkg/autodiff/*.F
335        (changed routines currently kept separate in verif. code/)
336      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
337        that used to hide exch2 or cubed-sphere specific code
338        (commented via 'cph-exch2')
339    o pkg/seaice
340      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
341    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
342       output of global_ocean.cs32x15.thsice .
343    
344    checkpoint59e
345    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
346      for B-grid vector (not yet tested) and C-grid vector (<- only used
347      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
348    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
349      (#ifdef ALLOW_SALT_PLUME)
350    o gather_2d/scatter_2d: removed halo regions
351    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
352      scheme and the corresponding test case (under front_relax dir). For now,
353      only available with Skew-flux form and not yet tested in realistic set-up.
354      adjoint: store directives updated, but gradient checks deteriorated,
355      so maybe GM/Redi adjoint is now broken.
356    o seaice adjoint
357      * add AREA, HEFF, HSNOW as control variable
358        (should not change lab_sea results)
359      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
360    o pkg/seaice:
361      * added computation of saltFlux in seaice_growth;
362        For time being, sea ice salinity is assumed constant
363        contribution of snow flooding to freshening of sea ice is neglected.
364        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
365        defaults to 0.0 in order to maintain backward compatibility.
366        Typical values for SEAICE_salinity are 4 to 10 g/kg.
367      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
368      * added SEAICE_availHeatFrac, which specifies fraction of surface level
369        heat content used to melt or grow ice
370      * commented out cap of HICE: it helps keep ice thinner
371      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
372      * applied OBCS T/S mask to HEFFM sea ice mask
373    
374    checkpoint59d
375    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
376     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
377     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
378    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
379     and change default value of parameter "GM_Small_Number";
380     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
381       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
382       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
383    o pkg/ecco: cost function when applying pkg/smooth to controls
384    o pkg/ctrl: add forcingPrecond run time parameter
385    o pkg/seaice:
386     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
387     - fix bug in metric terms of u-equation in LSR solver (implicit part),
388       changes verification/lab_sea
389     - rearrange implicit part of u-equation in LSR solver to make it easier to
390       read, understand, and debug. This causes changes at the truncation level.
391     - fix (serious) bug in the boundary conditions (sign error in the implicit
392       part) of the LSR solver. Changes all LSR results.
393     - fixed problem with HSNOW initialization to avoid thick snow when AREA
394       is initilized with small values - does not change lab_sea results.
395     - added HsnowFile initialization capability
396    o pkg/smooth: addition to model/src and pkg/ctrl so allow
397     initialization of pkg/smooth and application to control vector
398    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
399    o dependencies: pkg/profiles requires pkg/cal
400    o pkg/profiles:
401     - added option ALLOW_PROFILES_GENERICGRID
402         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
403         that interpolation information (grid points and coefficients) is provided
404         within the netcdf input files.
405         -> sample matlab scripts can be found in MITgcm_contrib/gael
406         that allow you to prepare netcdf input files.
407     - also modified: cleaner include statements, cleaner error print statements,
408       cleaner stops when error, and more tests of the netcdf input files consistency.
409    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
410    o pkg/seaice:
411     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
412       requires a new routine: seaice_diagnostics_fill.F
413     - make sure that seaice does not move if not forced (pressure replacement
414       method, Hibler and Ip, 1995), changes results
415     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
416     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
417       It is turned off by default (=-1.), because it changes the results.
418     - make it possible to read AREA from a file, too.
419    
420    checkpoint59c
421    o add S/R and diagnostics for oceanic mixed-layer depth
422    o move GMRedi call after all vertical mixing schemes (including KPP)
423    o pkg/thsice:
424     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
425      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
426    o pkg/obcs:
427     - bug fix for balance code
428    o pkg/seaice:
429      - allow values of SEAICE_elasticParm > 1
430      - add new parameter SEAICE_evpTauRelax as an alternative
431        to SEAICE_elasticParm
432      - make lsr boundary conditions free slip (by default), changes result
433      - add code for no slip boundary conditions for lsr
434      - set minimum of zeta to zero (and not 4e8) (changes results)
435      - add a cap on AREA after advecting AREA if seaice_growth is not called
436    o change calculation of Visbeck K:
437      - no longer depend on tapering scheme; instead, compute slope (limited
438        by GM_maxSlope). this is equivalent to what was comuted before with
439        clipping or linear tappering.
440      - fix vertical averaging (wrong by 1/2 level)
441      - leave the old version (but will not be maintained) within
442        #ifdef OLD_VISBECK_CALC / #endif
443      - update output of exp. ideal_2D_oce
444    o change error catch in calc_r_star to improve vectorization
445    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
446      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
447    o adjoint:
448      Re-organized adjoint checkpointing according to Matt Mazloff
449      (but with modifs/completions/cleanups)
450      Storing is now bundled into large arrays to optimized I/O
451      (and second step in cleanup of the_main_loop)
452    
453    checkpoint59b
454    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
455      - export/import (between ocean & coupler) fields needed for ocean DIC.
456    o pkg/seaice:
457      - get rid of three more exchanges seaice_calc_viscosities (required
458        different loop boundaries in seaice_lsr and seaice_ocean_stress)
459      - bug fix in seaice_ocean_stress (update of lab_sea required)
460      - reduce loop boundaries to necessary minimum also in seaice_evp
461      - go back to the old way of computing deltaC/Z as the adjoint likes that
462        better
463    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
464      passive tracer to an Age Tracer) + update output.txt
465    o pkg/exf:
466      - implement A-grid / C-grid selection for wind-stress input files.
467      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
468      for now, in exf_bulk_largeyeager04.F only :
469      - change implementation for case where windspeed + 2. components wind-stress
470        are read-in. AND use rhoConstFresh to convert evap.
471    o pkg/seaice:
472      - use correct EXCH_UV for wind-forcing (on A-grid).
473      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
474        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
475    o pkg/exf:
476      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
477      EXF_INTERPOLATION:
478      - merge global_with_exf/code version of exf_interp_read.F
479        to the main code ;
480      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
481        reading the file ; Important: This options needs to be defined to recover
482        previous code.
483        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
484      - no longer loose real*8 precision along the way when using exf_iprec=64.
485    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
486      - change discretisation of evp-solver in order to avoid another exchange
487        (changes lab_sea) and clean up a little
488      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
489        help the adjoint (this also changes the results slightly)
490      - add a few "_d 0" where they had been missing in seaice_evp.F
491      - cleaning up: remove unused seaice_calc_rhs.F
492    o pkg/exf: some cleaning-up:
493      - change various "constants" into runtime parameters
494      - cleaned-up Large&Yeager04 routine which should eventually
495        replace exf_bulkformulae.F (changed names of S/R and CPP)
496        and merged various ALLOW_ATM_WIND options
497     only used with thsice pkg (in thsice_get_exf.F):
498      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
499        which are used when useStabilityFct_overIce=TRUE (= the default)
500      - change default values of ice & snow emissivity and scale downward LW
501        by ice & snow emissivity.
502    o pkg/thsice:
503     fix few little problems, in thsice_calc_thickn.F:
504      - growth vertically (and not laterally) if iceFrac == iceMaskMax
505      - melt only laterally if hIce < hThinIce (as the comments say)
506      and in thsice_extend.F:
507      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
508      - start to form ice as soon as the minimum ice-volume is reachable.
509     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
510      and cpl_aim+ocn
511    o pkg/kpp
512     - move computation of surface related input fields to KPP into a new
513       subroutine kpp_forcing_surf.F
514     - remove wrong (within bi,bj loops) EXCH calls.
515     - little cleaning (add argument myThid in last position, cvs header ...)
516     - for now, fix conservation problem by exchanging KPPviscAz (may not
517       be the best fix)
518    o pkg/seaice
519     - check for inconsistent evp parameter/cpp-flag combination
520     - remove leftover errIO flat for obsolete name list error handling
521    o OpenAD
522     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
523    
524    checkpoint59a
525    o pkg/seaice: some parameter clarifications and a little bit of clean up
526    o pkg/thsice: rename run-time parameters:
527       himin       -> hIceMin
528       himin0      -> hThinIce
529       hihig       -> hThickIce
530       i0          -> i0swFrac
531       transCoef   -> bMeltCoef
532       frac_energy -> fracMelting
533      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
534       with default values (for now) that do not change the results.
535      remove old version of thsice vars advection in pkg/seaice.
536    o in FFIELDS.h:
537      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
538      - make pLoad & sIceLoad always available (but still only used if
539         ATMOSPHERIC_LOADING is #define).
540    o pkg/kpp: replaced _KPP_RL with _RL
541    o bug fixes for vertical diffusivity computations when both KPP and
542        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
543        are no longer updating the vertical diffusivity array
544        (passed as argument) but are (re-) setting those arrays.
545    o pkg/seaice: fix bug in evp solver, while doing that
546      - change (improve?) discretization of stress computations for both
547        cgrid-lsr and evp solver
548      - add a new routine to compute strain rates
549      - the above changes lab_sea results
550      - add no slip conditions for evp solver (off by default), lsr-version
551        may follow
552      - fix exchange for shear at Z-points (does not change lab_sea)
553      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
554        (to force the user to pick a time step since there is not "safe" way
555        of choosing it)
556      - add principal stress diagnostics
557      - rearrange fields for evp a little to avoid having to call a: too many
558        exchanges and b: exchanges for stress trensor components which we do
559        not have.
560      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
561        of evp, complete rewrite for lsr case (latter is does not yet work
562        in all cases)
563    o pkg/kpp: add code to have mixing in shelf ice caverns
564      - add myThid to all kpp routines (long overdue)
565    
566    checkpoint59
567    o pkg/exf:
568      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
569        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
570      - move exf header files from lower_case.h to UPPER_CASE.h ;
571        add missing cvs Header & Name
572      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
573      - add namelist param. selectStressGridPosition, exf_monFreq
574      - retire many _CLIM routines, and remove data.exf_clim
575        + params moved to data.exf
576        + climsst, climsss now handled by exf_set_gen, i.e.
577          climss?period=0 refers to constant field,
578          climss?period=-12 to monthly forcing
579      - split up namelists in data.exf
580    o pkg/seaice:
581      - remove seaice_exch and seaice_exch_uv
582      - remove superfluous exchange of theta
583      - add myThid to seaice_budget_ocean/ice
584      - add new interface for atmospheric wind forcing (C-grid only)
585        + new routine
586        + two new field (taux, tauy for stress over ice)
587        + removed one global field (DAIRN) for C-grid case only
588    o pkg/thsise
589      - 2nd set of modifs for thsice adjoint in conjunction with exf
590    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
591    
592    checkpoint58y_post
593    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
594      vertical diffusivity, similar to that in MOM4; turned on using
595      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
596      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
597    o Added capability for 3D specification of background vertical diffusion
598      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
599      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
600      "data" file that contains the 3D vertical diffusivity coefficients.
601    o ice dynamics (pkg/seaice) with thsice thermodynamics:
602      - add code within pkg thsice to advect & diffuse sea-ice fields
603      similar to (and will replace) what has been added in  seaice_advdiff.F,
604      but: - conserving Mass, Heat & Salt.
605           - better when using non-linear advection scheme (not yet fully tested)
606           - can also be used in atmospheric set-up (for now, only the diffusion).
607    
608    checkpoint58x_post
609    o IO option for global-file compact format:
610      - add options when generating topology (utils/exch2/matlab-topology-generator)
611      - add I/O capability (pkg/mdsio).
612      - adapt utils/matlab/rdmds.m to read this format.
613      for now long-line format not yet supported by pkg/mdsio (& exch2).
614    o shelfice: add a few diagnostics
615    
616    checkpoint58w_post
617    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
618      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
619      (and replace horiVertRatio in NH code).
620      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
621                         and tutorial_plume_on_slope (sensitive to truncation)
622    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
623      directly to drive seaice model (C-grid only)
624    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
625     - reintroduce computation of wind from stress,
626     - compute tau (in exf_bulkformulae.F) from windstress averaged to
627       mass points to avoid tau = 0
628     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
629    o rdmnc.m: make it work with "global" files created with gluemnc
630    o rdmnc.m : some improvements in dealing with singleton dimension
631      (tested on all testreport mnc output files).
632    o genmake2: disable pkg/profiles if netcdf test fails.
633    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
634    o move call to cal_readparms up to make calendar parameters/variable available
635      to all packages
636    
637    checkpoint58v_post
638    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
639      useDynP_inEos_Zc tested.
640    o pkg/exf: changes to properly interpolate/mask/scale initial fields
641    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
642      and portions thereof.  See read_cs.txt for description and examples.
643    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
644      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
645      following the great-circle arc between those 2 points.
646    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
647      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
648    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
649     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
650     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
651     - still needs work (not working with some options ; efficiency to improve)
652       and serious testing.
653     - use this scheme for temperature & salinity in 2 advection test exp.:
654       advect_xy & advect_xz, respectively.
655    
656    checkpoint58u_post
657    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
658    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
659    o testreport: add option "-skipdir" to skip some test.
660    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
661      momentum calculation.
662    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
663    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
664      remove checkpoint.F and the_correction_step.F (no longer used);
665      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
666    o add option (linFSConserveTr) to correct for tracer source/sink due to
667      Linear Free surface
668    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
669    o pkg/thsice: fix reading mnc-pickups
670    
671    checkpoint58t_post
672    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
673    o pkg/mdsio:
674     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
675       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
676       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
677     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
678     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
679       either MDS_READ_FIELD or MDS_WRITE_FIELD )
680     - new S/R (to replace MDSWRITEMETA), which allows to write more
681       informations (variable names, time ...) to meta files.
682     - modify rdmds.m to give back the meta file content.
683    o pkg/diagnostics: change vertical interpolation to be safer, and more
684       flexible (define p-levels to interpolate to in data.diagnostics);
685      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
686       diagnostic pointer.
687    o pkg/seaice: more cleaning up of seaice_growth, added many comments
688    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
689    o fix multi-category seaice:
690     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
691       SEAICE_MULTICATEGORY
692     - fix short wave heat flux
693    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
694       and allow to use EVP solver. Change forward lab_sea: test both EVP
695       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
696    o Initial check-in of lab_sea adjoint
697      (very similar to natl_box_adjoint/code_seaice)
698      * used C-grid and EVP solver
699      * used KPP, GM/Redi
700      * uses inAdExact=.TRUE.
701      * gradient checks fail for both ADM and TLM
702        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
703        f.d. gradients actually seem more problematic than ADM, TLM gradients;
704        issue is related to forward mismatch between g77 an ifort
705    o pkg/seaice: overhaul of thermodynamics
706     - growth.F and groatb.F are replaced by new routine seaice_growth.F
707     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
708     - move a few global fields out of SEAICE.h into seaice_growth.F and
709       make them 2D (FICE/QNETO/ ...)
710     - remove FO (it is the same as QNETO)
711     - introduce a few local fields to avoid modifying external fields such
712       as atemp, etc.
713    
714    checkpoint58s_post
715    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
716      changed exf_set_gen.F so that
717        genperiod=0 means input file is one time-constant field and
718        genperiod=-12 means input file contains 12 monthly means
719    o CG2D: use pre-computed solver main-diagonal (stored in common block);
720      this affects truncation error ; generate new output file for exp. which
721      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
722        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
723        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
724        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
725        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
726        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
727    o start implementation of deep-atmosphere and anelastic formulation
728    o verification: remove 2nd copy of input files and use script "prepare_run"
729      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
730    o mom_common/vecinv/fluxform: fix a few initialisation isssues
731    o profiles: fix for multithreaded case
732    
733    o diagnostics: rename few diags:
734      s/'PRESSURE'/'RCENTER '/g
735      s/'TICE    '/'oceFreez'/g
736      s/'TAUX    '/'oceTAUX '/g
737      s/'TAUY    '/'oceTAUY '/g
738      s/'SWFLUX  '/'oceQsw  '/g
739      s/DIFx/DFxE/g
740      s/DIFy/DFyE/g
741      and add few ocean-forcing diagnostics:
742      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
743    o modifications to pkg/seaice/growth.F and budget.F, which change results of
744      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
745      as actual snow thickness.  It now refers everywhere to effective snow
746      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
747    
748    checkpoint58r_post
749    o modifications to pkg/seaice/growth.F, which change results of
750      lab_sea experiment: fixes pertain to melting snow over open water, to
751      masking EVAP under sea ice, and to using the correct AREA variable for
752      computations of EVAP, PRECIP, HSNOW, and GHEFF
753    o add ability to read bathy, salt, and theta using MNC (off by def)
754    o add flooding algorithm and advection of HSNOW for pkg/seaice;
755      both are turned off by default and do no change any results
756    o seaice advection with pkg/thsice: a step toward the use of non-linear
757      advection scheme, but #ifdef or commented out for now (requires more EXCH).
758    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
759      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
760      in natl_box (affects results @ truncation level: update output.txt)
761    o multi-threading and IO:
762      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
763      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
764        (needed to work with SingleCpuIO): tested in all verif. exp.
765    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
766      affects the results (but none of the verification test uses this scheme).
767    o Adding some pkg/diagnostics capability to pkg/seaice
768      (will certainly be subject to changes)
769    o ctrl: adding new control variables:
770      lwflux, lwdown, evap, snowprecip, apressure, runoff
771    
772    checkpoint58q_post
773    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
774      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
775      high_res_cube configuration by 4% on Columbia.
776    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
777      add (in global_with_exf/code) a version of EXF_INTERP_READ without
778      dynamical allocation (seems to work in multi-threaded).
779    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
780      single CPU io) so that TAF does not have to see EESUPPORT.h
781    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
782    
783    checkpoint58p_post
784    o obcs: stop if obcs is used with useCDscheme = .true.
785    o shelfice:
786     - fix a sign error so that no slip at shelfice interface works
787     - remove stop for combination non-hydrostatic code and shelfice. That does
788       not mean, that the results are correct, but at least they are numerically
789       stable
790    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
791    o added adjoint exch routined for all exch*3d* routines
792      and updated flow directives
793    
794    checkpoint58o_post
795    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
796      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
797    o change controling S/R for writing pickup file (new S/R do_write_pickup)
798      and clean-up reading/writing of pickup files.
799    o fix local version of read/write pickup (NH part) in rotating_tank/code
800    o simplify EXCH interface:
801     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
802     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
803    o added the regrid package
804    o shelfice:
805     - add a simple boundary layer scheme to reduce noise
806     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
807    
808    checkpoint58n_post
809    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
810       local variable (not in common block).
811    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
812      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
813      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
814        to work with SingleCpuIO.
815    o add "_d 0" to real constant of pkg/cfc subroutines ;
816       update exp. cfc_exemple & tutorial_cfc_offline output files.
817    o multi-threading and IO:
818      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
819        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
820      - barrier before and after reading.
821      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
822      - avoid using MDS_WRITELOCAL for LAND pkg output.
823      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
824        common-block variables ; Allows multi-threading with master-thread IO.
825    o change default MAX_NO_THREADS from 32 to 4 ;
826      and stop cleanly when MAX_NO_THREADS is too small.
827    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
828    
829    checkpoint58m_post
830    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
831       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
832    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
833       keep global_ocean.90x40x15 (for AD testing) with former secondary test
834       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
835    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
836        add MITgcm_tutorials (= code + all the tutorials)
837    o ecco, option to compute cost for total ssh (mean+anom)
838    o consistent with addition of ptracer and ssh in pkg/profiles
839    o profiles: adding ptracer and ssh
840    o testreport: change multi-test output-file name
841      (from output.txt.{name} to output.{name}.txt)
842    o profiles: now ok for mutli-tiles case
843    o seaice: add 4 parameters for different advection schemes for area,
844      (effective) seaice thickness, enthalphy, and snow height. Their default
845      is the standard parameter SEAICEadvScheme
846    o calc_gw:
847     - add cosFacU in zonal viscous flux (harmonic.visc.).
848     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
849       of tutorial_plume_on_slope.
850    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
851    o calc_gw: true flux-form, account for horizontal grid spacing.
852      update rotating_tank results, but not plume_on_slope (affected at
853      truncation level, 11 digits).
854    
855    checkpoint58l_post
856    o calc_gw:
857     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
858     - remove side-drag for now (need to fix it); update plume_on_slope results.
859     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
860    o commit code to make SST/SSS weights spatially variable
861      (based on either variable in-situ or variable initial T/S weights)
862    o pkg/ecco:
863      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
864        now based on horizontally varying weights wthetaLev, wsaltLev
865      * cost_averagesflags now returns year indices in addition to day, month
866      * sflux balance is performed on annual basis
867        (sflxumm, sfluxmm2, bal_sfluxmm)
868      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
869        including separate counting and multipliers
870    o pkg/rbcs
871      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
872    
873    checkpoint58k_post
874    o testreport:
875     - always build in dir. "build" (if not there, mkdir build instead of building
876       & running in input)
877     - run in dir run (if it exists), in build otherwise.
878     - call prepare_run (if input/prepare_run exists)
879     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
880    o pkg/exf modifications to interpolation and rotation routines for more
881       reasonable treatment of North Pole singularity: for tracers North Pole
882       value is set to northernmost zonal-mean value, for zonal velocity it is
883       set to zero, and for meridional velocity it is set to northernmost value.
884    o pkg/exf/exf_check_range.F
885     - add tile index to diagnostics and move stop statement to the very
886       end of the routine.
887    o pkg/diagnostics: (diagnostics_main_init.F)
888      define title of isomorphic variables according to the current config.
889    o pkg/thsice with pkg/seaice dynamics:
890    - fix domain of computation (interior only, required for exf) and do exchanges
891    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
892    o towards a standard way of dealing with multi-threading in MONITOR
893      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
894    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
895       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
896    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
897    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
898    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
899       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
900    o tracer advection:
901     - clean-up and simplify calc_common_factors.F
902     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
903       advection subroutine (but still not used within DST advection S/R)
904    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
905    
906    checkpoint58j_post
907    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
908      from file (collects calls previously in FORWARD_STEP)
909    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
910    o adjoint store dir. adjusted accordingly
911    o genmake2
912      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
913    
914    checkpoint58i_post
915    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
916      on wind stress (SEAICEstressFactor defaults to 1.)
917    o Total number of Timers is finite (<=40): comment out 2 non-essential one
918      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
919    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
920      on CS-grid: no longer loosing mass.
921    o exf & curvilinear-grid: no longer modify longitude xC & xG.
922    o pkg/ggl90: fix sloppy output and fix a bug
923    o pkg/seaice: added SEAICEuseEVPpickup parameter
924      - Set to false in order to start EVP solver with
925        non-EVP pickup files when using SEAICEuseEVP
926      - fix sign error in diffusion in seaice_calc_rhs
927    
928    checkpoint58h_post
929    * Modifications for bottom topography control
930      o replace hFacC by _hFacC at various places
931      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
932      o add non-self-adjoint cg2d_nsa
933      o update autodiff support routines
934      o re-initialise hfac after ctrl_depth_ini
935      o works for 5x5 box, doesnt work for global_ocean.90x40x15
936    * Adding verification for 5x5 box (4-layer) bottom topography control
937    
938    checkpoint58g_post
939    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
940       used for mean seasonal cycle, mean diurnal cycle); add an example
941       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
942    o pkg/ggl90:
943      - add parameter (minimum surface kinetic energy)
944      - fix bug (avoiding division by zero)
945    o couple pkg/thsice to pkg/seaice:
946      - modify advection in seaice to accomodate new scalar fields to be advected
947      - only muliDimAdection scheme work with seaice/thsice
948      - mapping of thsice-variables to seaice-variables, back and forth
949      - does not break the verification experiments, but does not give the
950        desired results either
951    o pkg/seaice
952      - make (default) second order advection a bit less confusing?
953    
954    checkpoint58f_post
955    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
956      to pkg/seaice):
957      - new routines thsice_map_exf and thsice_get_exf provide the interface
958      - add an additional formal parameter to thsice_solve4temp
959    o pkg/exf:
960      - add new fields wspeed, snowprecip (to be able to couple to thsice)
961      - correct Stefan-Boltzmann constant
962      - new parameter for longwave surface emittance
963      - separate some stuff from exf_bulkformulae into new routines  
964        exf_radiation, exf_wind
965      - add new parameters and constants: longwave emissivity for ocean, ice
966        and snow, evaporation parameters over ice
967      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
968        either wind from stress or stress from wind
969    o pkg/thSIce:
970    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
971    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
972       and THSICE_CALC_THICKN
973    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
974    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
975      to make debugging easier.
976    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
977    o pkg/bulk_force:
978      - clean-up comments and parameters ;
979      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
980    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
981      generate new output for test-experiment: aim.5l_cs.thSI
982    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
983      testreport accordingly
984    
985    checkpoint58e_post
986    o SEAICE_CGRID adjoint done
987    o R_STAR adjoint implemented.
988      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
989      * need to sort out init. of h0facc, etc.
990    o Make pkg/profile fully independent of ecco,cost, etc. stuff
991      to be able to use it in pure forward.
992    
993    checkpoint58d_post
994    o upgrade simple test-experiment to tutorial example:
995     step.1: duplicate the experiment and (step.2) will remove the old copy.
996      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
997      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
998      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
999      tutorial_global_oce_biogeo    <- copy of dic_example
1000      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1001      tutorial_plume_on_slope       <- copy of plume_on_slope
1002      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1003      tutorial_global_oce_optim     <- empty for now (David ?)
1004      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1005     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1006    o correct a sign problem in cost_scat.F
1007    o obcs and ptracers: fix boundary conditions for advections schemes
1008      with larger stencil
1009    o thsice adjoint: start
1010    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1011      completeness
1012    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1013      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1014    o ptracers adjoint:
1015      * avoid extensive recomputatations
1016      * fix missing re-init. of gptr (missed by TAF)
1017    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1018      me to turn off the excessive output to STDOUT that this package produces
1019    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1020      and add those terms in Vector-Invariant formulation.
1021    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1022      if the control period (xx_hfluxperiod etc) is 0
1023    o in profiles pkg, clean routines and fix details
1024    o in ecco pkg, reading ssh data:
1025      fix problem in case the model does not start at iter0=0
1026    o fix mnc-pickup/restart for ptracers
1027    o new package prifiles:
1028      code to compute profile-based cost by Gael Forget
1029      (modifs in ecco, ctrl, autodiff)
1030    o Benign bug fix in initialization (spotted by M. Mazloff) of
1031      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1032    
1033    checkpoint58c_post
1034    o adjoint: finish NLFS adjoint and provide reference output in
1035      verification/global_ocean.90x40x15/results_ad_nlfs
1036    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1037      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1038      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1039      with SEAICE_CGRID defined.
1040    o move calendarDumps from "data" to "data.cal" and clean-up the code
1041      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1042    o add useEXF & useCAL flags (for now, set in hard-coded way)
1043    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1044      (were missing in NH mode, and wrong in quasihydrostatic mode).
1045      waiting for Chris updated version of calc_gw to add those CALLs.
1046    o fix bug in quasihydrostatic S/R ;
1047      add a test for this option: global_ocean.90x40x15.qshyd
1048    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1049      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1050    o add on/off flag useOffLine for package OFFLINE
1051    o seaice:
1052      - modify advection so that it works also on the C-grid
1053      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1054        problem in multi-tile runs with C-grid
1055      - add flags for clipping ice velocities and/or masking solver forcing
1056      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1057        C-grid solver
1058      - added a few comments to seaice_diffusion.F
1059      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1060        are now exclusive)
1061      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1062        required re-ordering the code a little:
1063       + make DAIRN global variable (defined in SEAICE)
1064       + move computation of the viscosities eta and zeta into a new separate
1065         routine (because I need to recompute them in seaice_ocean_stress.F)
1066    
1067    checkpoint58b_post
1068    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1069      update output.txt of exp. aim.5l_cs.thSI
1070    o various mnc cleanups and improvements:
1071      + shrink lookup tables by factor of ~4
1072      + better error reporting when running out of lookup space
1073      + able to handle longer path/file names (up to 500 chars)
1074    o adjoint:
1075      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1076      - TBD: "hidden" mom_vecinv recomp. in dynamics
1077    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1078     (allow to differentiate between forcing components using new integer flags:
1079      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1080     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1081    o ecco
1082      - enable trend removal from SSH anomaly obs.
1083    o adjoint
1084      - a fix for PmEpR when #undef EXACT_CONSERV
1085      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1086      - try to fix "hidden" recomp. in forward_step for NLFS
1087        (NLFS seems broken sometimes after I checked it in)
1088    o seaice:
1089     - add c-grid version of the dynamic solver:
1090       + three new routines that are the c-grid substitute lsr, dynsolver
1091         and ostres
1092       + put a few fields that were local to dynsolver into global common
1093         blocks, so that I can move the computation of stresses etc into
1094         seaice_lsr (saves coding but may break the adjoint).
1095     - replace more hardwired parameters by runtime parameters
1096     - add ice masks that mask the rhs of the implicit solvers where there
1097       is no ice (commented out in seaice_dynsolver, because i am not sure
1098       if this works properly), eventually this should replace the clipping
1099       of ice velocities in seaice_dynsolver to +/-40cm/s.
1100    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1101      include it only where its needed
1102    o move balancing of fluxes before the call of external_forcing_surf
1103    o seaice:
1104      - correct units of turning angles (now they are really in degrees)
1105      - move computation of GWATX/Y out of main routine into dynsolver
1106      - initialize GWATX/Y in seaice_init
1107    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1108      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1109    o seaice: add runtime flags for turning angles (default to zero)
1110    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1111      and trend from exf forcing and ctrl control adjustments
1112    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1113      (since checkpoint57x_post)
1114    o change the default rotation period to 86164.s = the Earth rotation
1115    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1116      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1117    o seaice advection: add code for choosing between the default (2nd order
1118      central differences) and multiDim advection schemes provided by
1119      pkg/generic_advdiff
1120    o seaice:
1121      - removed all references to SEAICE_GRID.h fields from
1122        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1123        (cubed-sphere configuration will change a little)
1124      - grid computations in seaice_init are obsolete now.
1125      - cleaned up code a little so that is easier to read (hopefully).
1126      - added new (better?) discretizations of default advection and diffusion
1127        (turn on with SEAICEuseFluxForm)
1128      - replace 1 in 3d global fields by kSurface in growth.F
1129      
1130    checkpoint58a_post
1131    o seaice:
1132      - bug fix in advect.F
1133    o shelfice:
1134      - separate shelfice load anomaly from pload (breaks with time
1135        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1136        Its default is 0., but it may be computed more cleverly from (unknown)
1137        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1138        done offline. A good approximation of the pressure load anomaly is
1139        necessary to avoid large initial adjustment processes underneath
1140        deep-reaching shelfice.
1141      - small fix in ISOMIP shelfice_thermodynamics
1142      - add more sophisticated thermodynamics of Hellmer (1989), this is
1143        now the default
1144      - give a few constants more intuitive names
1145    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1146      if bulk formulae are used in long integration (especially EmPmR). Turn
1147      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1148      if balancePrintMean, the imbalance that is substracted is printed to
1149      STDOUT.
1150    o fix bug (typo) in obcs_apply_eta.F
1151    o add a new package shelfice which enables us to model the circulation
1152      underneath shelf-ice with draughts of hundreds of meters.
1153     - works
1154     - to do: + include improved thermodynamics
1155              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1156                instead of new field kTopC
1157              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1158                instead of new field R_shelfIce and new code in ini_depth.F
1159                and ini_mask_etc.F?
1160              + adjust vertical mixing schemes?
1161    o seaice pkg:
1162     - add a cpp-flag to include a simple formula for a salinity dependent
1163       freezing point of sea water at the surface
1164     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1165       meridional stresses are now different (and hopefully correct)
1166    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1167       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1168       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1169    o pkg/diagnostics: add options and parameters for regional-statistics
1170       diagnostics ; define regions by reading a region-mask from a file
1171       (might add other options later)
1172    o pkg/bulk_force:
1173     - add option and parameters to use AIM surface-flux formulae.
1174     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1175       others forcing fields (defined in PARM05, parameter file "data") are loaded
1176       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1177     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1178     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1179     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1180       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1181     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1182    
1183    checkpoint58
1184    o add "--embed-source" option to genmake2 which, when the supporting
1185      tools can be compiled (as determined by genmake2) will turn on the
1186      embed_files package which then embeds the entire MITgcm source code
1187      (*.[fFhc] + Makefile) used for the build within the executable
1188      - requested by CNH but off by default
1189      - adds a paltry <9MB to the mitgcmuv executable in most cases
1190      - only writes the output when useEMBEDSRC in eedata is true
1191    o clean up 3-dim. relaxation codes:
1192      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1193      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1194      * Thanks to Tom Haine for testing!
1195    
1196    checkpoint57z_post
1197    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1198      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1199    o fix the pickup behavior for obcs in combination with ptracers
1200    o fix a bug in ptracers_external_fields_load
1201    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1202      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1203    o transfered surface NH pressure to eta field (if exactConserv).
1204    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1205         and update lab_sea output.txt file.
1206    o completing 3-dim. relaxation code: additional term
1207         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1208      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1209      * At compile time, in "EXF_OPTIONS.h" set
1210          #define  ALLOW_CLIMTEMP_RELAXATION
1211          #define  ALLOW_CLIMSALT_RELAXATION
1212      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1213          tauThetaClimRelax3Dim = 15552000.0,
1214          tauSaltClimRelax3Dim  = 15552000.0,
1215      * 3 cases:
1216          1) Use a constant-in-time 3-dim. field
1217          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1218          3) Real-time relax. to time-evolving prescribed field
1219    o Adding Laplacian-type smoothness constraint on
1220      initial and boundary (forcing) controls (ic, bc)
1221      * enable at compile-time via
1222        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1223      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1224      * Absolute scale somewhat unclear so far
1225      * no area weighting was included since no other cost term does so far
1226    
1227    checkpoint57y_post
1228    First step for a NLFS adjoint
1229    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1230    o new init. routines for calc_r_star, calc_surf_dr
1231    o still need to deal with ini_masks_etc
1232    o testreport seemed happy
1233    checkpoint57y_pre
1234    
1235    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1236    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1237    o add new offset feature to offline pkg (plus minor cleanup)
1238    o cfc fixes for final year of integration
1239    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1240      be in GCHEM_OPTIONS).
1241    
1242    checkpoint57x_post
1243    o fix testreport Pb in multiple test experiment.
1244    o cleanup our namelist syntax in verification:
1245      - make it more F95 standards compliant (some work still needed)
1246      - allows the vast majority of our tests to work with gfortran
1247    o Non-Hydrostatic:
1248     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1249     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1250    o Allow to apply AB on T,S rather than on AB(gT,gS):
1251     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1252     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1253       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1254     - need a "clever" read_pickup to restart from the other AB formulation
1255    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1256    o remove some unused variables (reduces number of compiler warnings)
1257    o adjoint
1258      * Disable useVariableViscosity for adjoint for time being
1259        (there are a number of extensive recomputations)
1260      * Initialize certain variables needed for adjoint
1261    
1262    checkpoint57w_post
1263    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1264                 fix the singleCpuIO RS version of MDSWRITEFIELD
1265       and add a WARNING if using globalFiles=T with multi-processors.
1266    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1267      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1268    o tracer advection scheme:
1269      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1270       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1271       was not very convenient).
1272      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1273       (further tests needed for the implicit DST & Flux-Limiter schemes).
1274    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1275      and sRef for convenience, handy, when you want to initialize
1276      ptracers in a large domain with a constant non-zero value. Also,
1277      untangle ptracers_init.F a little.
1278    
1279    checkpoint57v_post
1280    o change dome exp. to use variable viscosity in side-drag terms.
1281    o remove all the files from the cfc_offline test since they are now
1282      incorporated into tutorial_cfc_offline which has been producing
1283      identical results for a few days of testing
1284    o add new parameter: sideDragFactor to enable half-slip-side BC
1285      and change side-drag S/R to use viscosity from mom_calc_visc
1286      (can switch back by setting sideDragFactor=0.); affects results at
1287      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1288       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1289    o vorticity & strain are now computed without masking, to account for
1290      no-slip-side BC in variable viscosity calculation ; mask is applied
1291      anyway later on, before computing advection/coriolis terms.
1292    o modify exp4 to test new obcs support for reading from external files
1293      and for passive tracers
1294    o fix behavior of ptracers_monitor when monitor output is written to a
1295      netcdf-file; still not independent of monitor.F (writes in the same
1296      file).
1297    o change default value of tRef (put a uniform, meaningful value for ocean
1298      & atmos) and initialize sRef (was missing, as Martin mentioned).
1299    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1300      to be proportional to enstrophy dissipation length.  Thus,
1301       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1302      This is now consistent with Smagorinsky and with the manual.
1303    
1304    checkpoint57u_post
1305    o OBCS and PTRACERS: add open boundary support for passive tracers
1306      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1307        OB-values from file; this is not different from the way theta and salinity
1308        are treated
1309      - however, Orlanski-radiation conditions are not supported, and the model
1310        will stop if you use pTracers and Orlanski at the same time.
1311      - beefed up the rountine obcs_external_fields_load: now only those open
1312        boundary values are overwritten with values from files for which there
1313        are really files, otherwise the OB-fields remain untouched. This makes
1314        it possible to use different OBs at different ends of the domain (as
1315        with EXF)
1316    o reduce number of exch calls in shap_filt (s2).
1317    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1318      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1319    
1320    checkpoint57t_post
1321    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1322    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1323      same truncation, independent of the face number: affects affects several
1324      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1325    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1326      note that biharmonic viscosity + no-slip was not tested in any experiment.
1327    o fix bug in non-linear free-surf side-drag ; generate new output for
1328      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1329    o make mnc honor the writeBinaryPrec flag for most kinds of output
1330    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1331    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1332      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1333    o add brackets in multi-terms sum to get same truncation, independent of
1334      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1335      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1336    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1337      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1338      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1339      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1340      Suggested values of viscosity parameters found in mom_calc_visc.
1341      Many new viscosity diagnostics available.
1342    
1343    checkpoint57s_post
1344    o Add clearing-house for viscosity calculations, mom_calc_visc and
1345      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1346      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1347      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1348      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1349      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1350      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1351      ViscAhStrain and viscAhTension are now retired.
1352    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1353    o In response to JMC's bug report, genmake2 now ignores any soft-links
1354      that it finds in the *current* directory when searching for files.
1355      Soft-links found in any other source directories will still work as
1356      they did before.
1357    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1358      a C routine to unlimit the stack size
1359    o mnc-ify pkg/aim snapshot vars
1360    o mnc-ify pkg/land as requested by Daniel
1361    o various changes to mnc including:
1362      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1363      - output can now be grouped so that all files within a group
1364          change the ITER portion of their names in lock-step together
1365      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1366          and works with both EXCH1 and EXCH2 (but needs more testing)
1367      - writing works for all verification test cases w/ g77 on Linux
1368    
1369    checkpoint57r_post
1370    o make MNC variable initialization happen earlier
1371    o add diagnostics for (almost) each term of the momentum Eq.
1372    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1373    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1374    o remove MINIMAL_TAVE_OUTPUT option ;
1375      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1376    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1377      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1378    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1379    o add time-dependent SST, SSS control
1380    o cost terms in ecco/ modularized (new cost_generic.F)
1381    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1382    o new infrastructure for seaice model vs. obs misfits in seaice/
1383      * driver from the_main_loop.F is seaice_cost_driver.F
1384      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1385      * gradient check in Exp. 6a of natl_box_adjoint/
1386    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1387      (see README file)
1388    
1389    checkpoint57q_post
1390    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1391    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1392      - bug was reported by Jean-Michel and Ian Fenty
1393    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1394      update exp. cpl_aim+ocn output.
1395    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1396      Needed for high-res. runs with large global files
1397      to be able to limit tapelev size
1398    o Changed some tests for adjoint:
1399      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1400      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1401      * global_ocean.90x40x15/ back to default 3-level checkpointing
1402    o Modifications to enable scripted COMMON to MODULE conversion
1403      * verification/OpenAD/code/ has necessary scripts and description;
1404      * converts, compiles and runs successfully;
1405    
1406    checkpoint57p_post
1407    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1408    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1409      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1410    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1411    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1412      (was already the case for dissipation with mom_vecinv,
1413       and also the case for grad.PhiHyd when staggered-timeStep)
1414      This will allow to put dissipation out-off the AB time-stepping.
1415     Unfortunately, affects truncation error. Update output of exp. that "fails"
1416      (cg2d matching number) and leave the others for later: front_relax(10),
1417      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1418      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1419    
1420    checkpoint57o_post
1421    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1422      (2) its ready to be documented during the 20050801 DocFest
1423    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1424      for ideal_2D_oce and lab_sea on linux_ia32_g77
1425    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1426      in global1x1_tot/code_seaice_adj to access indices 32, 33
1427      (worth another tag)
1428    
1429    checkpoint57n_post
1430    o adding precip control xx_precip 32
1431    o adding swflux control xx_swflux 33
1432    o Replacing 10 forcing penalty cost routines by 1 generic.
1433    o Implementing partitioning in time-mean and variable adjustment
1434      for atmos. state.
1435    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1436    o in natl_box_adjoint:
1437      * updated exp 1 to 10
1438        (but does not have time-mean vs. variable split results yet)
1439    o updated global1x1/*_seaice_adj/
1440      to incorporate latest changes
1441    o enable useSingleCpuIO for mdsio vector routines
1442      (applies in particular to tapelev I/O)
1443    o removed inefficient K-loop in all active_file*control*.F
1444    
1445    checkpoint57m_post
1446    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1447      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1448    o pkg/exch2: filling of face-corner halo regions is optional
1449      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1450    
1451    checkpoint57l_post
1452     tag before updating tutorials (pre-release-2)
1453    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1454       for output and interpolation of input fields onto model grid)
1455    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1456       Affects results of exp. rotating_tank ; update output.txt.
1457    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1458          and taking the square quantity and/or using a fraction-weight field.
1459    o fix aim_diagnostics_init.F mate numbers.
1460    o add mnc output capability to diagnostics/diagstat and update
1461      our cvsignore files for the ACSII output generated
1462    
1463    checkpoint57k_post
1464    o lab_sea now uses diagnostics package and provides a suite of
1465      new EXF diagnostics output.
1466    
1467    checkpoint57j_post
1468    o exf
1469      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1470        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1471        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1472      * extended diagnostics output
1473        - now includes all EXF variables
1474        - hs, hl moved to common block
1475        - separate S/R for diagnostics, called after ctrl vector is added
1476        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1477        - EXFqnet contains true Qnet (i.e. includes qsw)
1478      * updated verif. lab_sea, global_with_exf
1479      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1480        to ensure that diagnostics sees a true EXFqnet
1481    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1482    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1483      several times with different frequencies.
1484    o mnc-ify the thsice package as requested by Daniel Enderton
1485      - the monitor--MNC output needs work
1486      - many attributes need to be added (most are currently blank)
1487    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1488      - many attributes need to be added (most are currently blank)
1489    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1490    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1491    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1492      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1493         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1494    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1495     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1496    
1497    checkpoint57i_post
1498    o Diagnostics package was changed: diagnostic allocation is now deactivated
1499      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1500    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1501      add 1rst Order upwind vertical Shear.
1502    o add a quick fix for A/B checkpointing in OFFLINE mode
1503    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1504      end-run around the C/Fortran linking horror in eesup/src/timers.F
1505    o added pkg/runclock: allows user to terminate run based on wall clock
1506    o added non-hydrostatic scaling parameter: nh_am2
1507    o pkg/my82: futile attempt to make results compiler-independent by adding
1508      some "_d 0", etc. no effect.
1509    o for mnc output, fill the 'T' coordinate var with myTime and create a
1510      separate 'iter' variable for iteration count
1511    o pkg/diagnostics:
1512      add new capability: output of Global/Regional & per-level statistics ;
1513      tested against monitor output (including land & thSIce) on various exp.
1514    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1515    
1516    checkpoint57h_done
1517      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1518      data.diagnostics, data.gchem, data.ptracers) is done.
1519    
1520    o pkg/diagnostics: prepare for Global/Regional statistics.
1521      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1522    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1523      and rename it: DIFFERENT_MULTIPLE
1524    
1525    checkpoint57h_post
1526    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1527    o pkg/diagnostics: change output frequency, now in seconds (instead
1528      of Nb of iterations). This requires to change data.diagnostics.
1529    checkpoint57h_pre
1530    
1531    o in mnc, let the user create the output dir if both mnc_outdir_date
1532      and mnc_outdir_num are false
1533    o add fflags() to pkg/diagnostics which allows one to specify, on a
1534      per-file basis, the file precision [default behavior is unchanged]
1535    o added diagnostics to pkg/kpp, including computation of mixed layer
1536      depth based on a temperature/density criterion
1537    o updated verification/natl_box to test the new pkg/kpp diagnostics
1538    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1539    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1540    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1541      not mnc -- this mistake was found by JMC and is now corrected
1542    
1543    checkpoint57g_post
1544    o add Adams-Bashforth 3rd Order time stepping:
1545      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1546      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1547    checkpoint57g_pre
1548    
1549    o make lambda[Theta,Salt]ClimRelax spatially varying
1550      (default remains spatially uniform constant based on tau)
1551    o added new control variables
1552      * init. uVel, vVel, etanN
1553      * lambda[Theta,Salt]ClimRelax
1554    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1555      (suggested by G. Forget)
1556    
1557    checkpoint57f_post
1558    o add parameter "baseTime" = model base time = time at iteration zero
1559      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1560      account for baseTime shift
1561    o move Coriolis arrays from PARAMS.h to GRID.h
1562    checkpoint57f_pre
1563    
1564    o mnc-ifying the seaice package
1565    o introduced an alternative length scale calculation for use in the limiting
1566      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1567    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1568    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1569      as well as grad(vort3).  Made it compatible with both approximate form
1570      for the cubed sphere and full form of these gradients.  Added flag
1571      useFullLeith to select between approximate and full form.  
1572    o add "d0" in getcon.F to reduce differences between compilers/platforms
1573      update output.txt of exp. fizhi-gridalt-hs
1574    o change port_rand funtion to allow to set the seed.
1575    o fix obscure MNC bug involving conversion between reals and integers
1576      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1577        new version is now more standards-compliant
1578    o adjoint-related modifications
1579      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1580      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1581      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1582    
1583    checkpoint57e_post
1584    o Adding eddy stress controls a la Ferreira et al.
1585    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1586    
1587    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1588      update output.txt of exp. fizhi-gridalt-hs
1589    o add more "Z" dimensions and associated coordinate vars to MNC
1590    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1591    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1592      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1593      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1594      months and years.  Requires pkg/cal.
1595    o diagnostics: add pickup functionality
1596      - off by default for backwards compatibility
1597      - current version only uses MDSIO -- MNC will be added
1598    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1599    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1600    
1601    checkpoint57d_post
1602    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1603    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1604      output from the diagnostics package
1605    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1606    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1607      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1608    o add coordinate variables to the MNC output from the diagnostics package
1609    o change MNC-flags default value: true when useMNC=TRUE
1610    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1611      the ability (off by default) to read the grid information using MNC
1612    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1613    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1614    o do snap-shot diagnostics at the middle of the time-interval (instead of
1615      at the end).
1616    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1617      new test for AIM with thSIce + slab-ocean
1618    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1619    o move state variable diagnostics to the beginning of the time step ;
1620      (note: still needs some work specially for snap-shot diagnostics)
1621      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1622    
1623    checkpoint57c_post
1624    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1625    o generate new output.txt files on faulks with g77 & the new -ieee option
1626    checkpoint57c_pre
1627    
1628    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1629      update output.txt of exp. global_ocean.90x40x15
1630    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1631      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1632    o add saltFlux(+File) forcing capability with periodicExternalForcing
1633    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1634    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1635    o improvements for the MNC output from DIAGNOSTICS:
1636      - correct handling of the unlimitied dimension
1637      - all dims now have associated coordinate variables
1638      - variables located at U, V, and Corner ("Z") points are now written
1639        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1640        *all* data points are output
1641    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1642    o added pkg/seaice/seaice_monitor.F
1643    o mdsio_readfield.F can now read files visible only to master MPI process.
1644    o pkg/seaice: some test code for ice-modified ocean stress
1645    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1646      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1647      spurious negative numbers for precipitation and humidity.  Will cause
1648      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1649    o pkg/ctrl/
1650      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1651        May be enabled via doPackDiag
1652      *  introduce z-scaling of
1653         + gradient (doZscalePack) and
1654         + control (doZscaleUnpack)
1655    o pkg/mdsio/
1656      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1657      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1658    
1659    checkpoint57b_post
1660    o simplify options in diagnostics_fill arguments (remove weird combinations)
1661    o fix MNC coordinate variables so that they now contain per-face index
1662      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1663      general, EXCH2 grids are only aligned to a "local" coordinate system
1664    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1665    o Implement instantaneous output within pkg diagnostics:
1666      setting a negative frequency in data.diagnostics produces
1667     "snap-shot" output (as opposed to time-average if freq > 0)
1668    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1669      NOTE: change ptracer diagnostics name: use 2 characters to work with
1670            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1671    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1672      becomes the coordinate variable for the 'T' dimension
1673    o add CF-style coordinate variables to MNC
1674      - just a first cut:  numbers are meaningless on the cubesphere and
1675        missing along the T axis but otherwise it works!
1676    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1677    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1678    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1679      this is based directly on what the model compute, so that the content of
1680      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1681    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1682    o clean up build options files for SunOS, in particular
1683      - remove -traditional from xmakedepend
1684      - change -xarch=v9 to -xarch=native for f77
1685      - restore use of make (not gmake)
1686      - add CC=gcc if using g77
1687    o changes per discussion of AM, JMC, & EH3 today:
1688      - move redundant "grid" variables out of "state" -- in preparation of
1689        creating proper CF-style coordinate variables and in recognition
1690        that any/all grid variables can be easily copied (eg. w/NCO) from
1691        the grid files into any of the other NetCDF files
1692      - *always* output grid variables with MDSIO (this will eventually be
1693        changed)
1694      - output MNC grid file if useMNC is true
1695    o every instance of _END_MASTER() has been found and replaced with
1696      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1697      preprocessors
1698    o re-arrange diagnostics pkg initialisation:
1699     - allow each package to extend the available diagnostics list
1700     - add some checking and fix small problems (multi-threaded, ...)
1701     - new S/R diagnostics_fill (replace fill_diagnostics):
1702       look through the short list of active diag. (instead of the long list)
1703       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1704    
1705    checkpoint57a_post
1706    o this set of changes restores TAMC compatibility
1707      tested for global_ocean.90x40x15 adjoint on trough
1708      (what a pain)
1709    
1710    checkpoint57a_pre
1711    o some modifs in tools/build_options for sunos
1712    o call ctrl_pack for ctrl at end for optimcycle=0
1713    
1714    checkpoint57
1715    o add horizontal bi-harmonic viscosity for vertical velocity
1716      - new parameter viscA4W (defaults to viscA4)
1717      - affects only non-hydrostatic code
1718      - to be done: no-slip lateral boundary conditions
1719    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1720    o implement Implicit Vertical advection for pTracers
1721    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1722      (implemented also for implicit vertical diffusion & advection)
1723    o OBCS: extend application of tracer open boundary conditions
1724      to a strip beyond the boundary of width Olx/Oly
1725    o add call monitor to TAF set of required calls (flow directives)
1726      and include in natl_box_adjoint
1727    o untangle a few ifdefs related to cost, ctrl, autodiff
1728      untangel a few ALLOW_ECCO_OPTIMIZATION
1729    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1730      (theta2, salt2 in ecco_cost_weights)
1731    
1732    checkpoint56c_post
1733    o OBCS as control variables
1734      - update ctrl_ad_diff.list, obcs_ad_diff.list
1735      - remove balance of obcs controls from default
1736      - fix index bug nobcs in ctrl_init
1737      - fix dummy fields filen in ctrl_pack
1738      - add dummy weights for obcs
1739    o lsopt: comment out fort.94 output
1740    o optim:
1741      - remove unnecessary header files
1742      - adjusted namelists
1743      - add xerbla.F to Makefile
1744    o exf:
1745      - multiple modifications of exf_check_range
1746      - unit change in exf_init_runoff from [m/year] to [m/s]
1747    o mdsio:
1748      - i/o-vector change debugLevel from debLevA to debLevB
1749    
1750    checkpoint56b_post
1751    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1752      is called from DO_THE_MODEL_IO
1753      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1754      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1755      - clean up PTRACERS_WRITE_TIMEAVE a little
1756    o add another verification experiment that tests both the cfc-pkg and
1757      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1758      reactive tendencies treated inline with regular timestepping
1759    o testreport previously did a lousy job of comparing small numbers, so
1760      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1761      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1762      testreport.
1763    o ptracers_monitor: bug fix for MPI
1764    
1765    checkpoint56a_post
1766    o GCHEM: finish reorganizating the package
1767      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1768        (introduces another 3D-array for each passive tracer, but only if
1769        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1770        gchemTendency is not needed because the timestep is done separately)
1771      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1772      - GCHEM is now---more or less cleanly---separate from PTRACERS
1773      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1774        so clear to me how that should be done in a general way.
1775    o CFC: improve formatting of output in CFC_ATMOS
1776    o PTRACERS:
1777      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1778        that ALL experiments with ptracers enable can be checked. This makes
1779        GCHEM_MONITOR obsolete.
1780      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1781        monitorFreq
1782      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1783    o add PTRACERS (PTR0[1-5]) to testreport output
1784    o exf_check_range:
1785      * default changed to .TRUE.
1786      * will check values for niter0 if debLevA, every timestep if debLevB
1787      * STOP in exf_check_range if 'out of range'
1788      * range chosen generous to allow for potential extema
1789      TBD: a version with stricter range
1790           permitted range would be runtime parameters
1791    o GMredi:
1792      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1793      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1794      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1795    o GCHEM:
1796      - move call to GCHEM_FORCING_SEP, so that it is now called before
1797        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1798      - introduced a useGCHEM runtime flag and applied it everywhere.
1799      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1800        this flag is now only visible within GCHEM-pkg routines.
1801      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1802        be replaced by a 3D array that is computed before thermodynamics; for
1803        this, the tracer ID iTracer had to be included into the parameter list
1804        of ptracers_forcing
1805      - set up forward_step to call gchem_forcing, that will replace
1806        gchem_forcing_int in ptracers_forcing
1807      - cleaning up
1808    o small cleaning of exch2: remove files that are also in eesupp/src
1809    
1810    checkpoint56
1811    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1812    o mnc: cleanup "full" files--fixes out-of-memory problem
1813    o ECCO-GODAE
1814      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1815      * fully merged and updated from SIO code
1816        windstress sign change affects
1817        - exf_inscal_[u/v]stress
1818        - sign of xx_tau[u/v] adjustments
1819        - signs in cost_scat
1820      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1821      * natl_box_adjoint updated and compressed
1822      * 2-level checkpoint switch added
1823        (tested in EXP. 1 of natl_box_adjoint)
1824      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1825    o SVD
1826      * first complete, non-hacked version for SVD calculations
1827      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1828        performed via direct access files admtlm_vector.it????
1829        (via ctrl_[un]pack)
1830      * optimcycle is used for ARPACK iteration counter
1831        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1832      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1833        and add linear transforms where necessary
1834      * controls are initial/final SST, SSS (can be extended; need to check
1835        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1836    o mdsio: filename info to both stderr, stdout
1837    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1838      from sign change
1839    
1840    checkpoint55j_post
1841    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1842      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1843    o add consistent build directories and .cvsignore files to verification
1844    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1845    o make all subroutines 30 or less characters in length for certain older
1846      compilers to work (a thorough search only turns up two routines in
1847      pkg/ptracers)
1848    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1849      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1850    
1851    checkpoint55i_post
1852    o change arrays for total vertical diffusivity (2.D if explicit,
1853      3.D if implicit) ; each ptracer uses its own background value.
1854    o added mnc/NetCDF output capability to ocn_compon_interf
1855      - added bits to verification/cpl_aim+ocn so that it can run on
1856        ITRDA and other clusters without the mpirun "-wd" option
1857    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1858      configuration
1859    o give MNC the ability to create additional files rather than
1860      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1861      - the default is just less than 2GB which is a practical limit
1862        on many systems
1863    o Compute the non-local term using either KPP vertical diffusivity (=default)
1864       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1865    
1866    checkpoint55h_post
1867    o add verification test "vermix"
1868    o remove all the *_ioinc flags and replace with the single global
1869      outputTypesInclusive flag
1870    o allow to set a vertical profile of vertical diffusivity for T & S
1871    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1872    o useMNC moved from data.mnc to data.pkg
1873    
1874    checkpoint55g_post
1875    o Renaming carbon AD experiments to comply with testreport conventions
1876    o Updating adjoint of Held-Suarez hs94.1x64x5
1877    o Fixing directives for non-ECCO forward_step, after ECCO directives
1878      have been fixed to avoid recomp. of do_oceanic_phys
1879      Works well for global_ocean.90x40x15,
1880      but recomp. issue remains for carbon
1881    o Updating adjoint output for natl_box_adjoint after
1882      pkg/ecco has been modified (see taga c55d_post)
1883    
1884    checkpoint55f_post
1885    o rename to timeave_init_fixed
1886    
1887    checkpoint55e_post
1888    o some delicate re-shuffle of store directives to avoid one
1889      extra call of do_oceanic_physics
1890      affects ecco_the_main_loop.F, do_oceanic_physics.F
1891      checkpoint_lev1_directives.h
1892    o NB: this may break global_ocean adjoint temporarily,
1893      but it is clear how to fix it. Will do later, need this now.
1894    
1895    checkpoint55d_post
1896    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1897    o ecco_cost_weights is modified to 1x1 runs
1898    o modifs to allow observations to be read in as
1899      single file or yearly files
1900    o enable to read exf forcing fields as either
1901      single file or yearly files (flag useExfYearlyFields)
1902    checkpoint55d_pre
1903    
1904    o switch between 2-level and 3-level checkpointing
1905    o add ability of MNC to write local and "partial" (eg. 2D slices where
1906      the full 3D field is never actually stored) arrays to NetCDF files
1907      with the correct (that is, the complete multi-dimensional) set of
1908      array indicies
1909      - used in mom_vecinv() to write the diagFreq output
1910      - tested (demonstrated) in verification/aim.5l_cs
1911    o further mnc-ification
1912      - add verification/lab_sea to the list with mnc setups
1913      - fix undefined mnc v-names in cd_code
1914      - add kpp to mnc output (both snapshot and timeave)
1915    o non-hydrostatic code
1916      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1917        in calc_gw.F
1918      - defaults to viscAh
1919      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1920        friction or Leith) in non-hydrostatic mode, as long as there is
1921        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1922    o pkg/cost
1923      extend simple cost functions to treat time mean quantities
1924      (T,U,V) via cost_accumulate_state from cost_tile
1925    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1926        be 2 times larger than the minimum size the advection scheme requires.
1927        now get a perfect conservation of salt in advect_cs test-exp (updated)
1928    o GGL90 (Gaspar's TKE mixed layer)
1929      - add horizontal diffusion of TKE, requires exchanges in
1930        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1931        default. In OPA there is no horizontal diffusion of TKE but the
1932        mixing coefficients are computed from a horizontal average of TKE of
1933        6 points or so. I think that diffusion has a little more physical
1934        justification.
1935      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1936        was in vain)
1937      - mask tke-variable in ggl90_init
1938    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1939    o fix biharmonic diffusion on CS-grid.
1940    o more obcs stuff
1941      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1942        for reading boundary values. This routine is called from
1943        obcs_prescribe_read
1944      - updated obcs_check
1945      - changed sponge layer relaxation parameter units for days to seconds
1946      - turned off sponge layer by default
1947      - changed argument list of OBCS_CALC to myTime+deltaTclock
1948      - fixed about 35 bugs in obcs_external_fields_load
1949    
1950    checkpoint55c_post
1951    o obcs stuff
1952      - new runtime flags useOBCSprescribe, useOBCSbalance
1953      - re-arranged obcs_calc
1954      - moved exf_getobcs to obcs_prescibe_read
1955        obcs_prescibe_read is called after ORLANSKI stuff
1956        and independent of it (executable can contain all).
1957      - updated obcs_check
1958      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1959        These may be necessary only if tangential velocities are
1960        prescribed at OB, not sure, needs testing.
1961    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1962      which simplifies the calls and passes the ifc check-bounds test
1963    
1964    checkpoint55b_post
1965    o add a 2D scalar, Z location, exchange_2 routine.
1966    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1967      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1968      affects advect_cs results (for the wrong reason): update output.txt
1969    o use a more standard discretization for biharmonic viscosity ;
1970     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1971      affects results of dome set-up: update output.txt
1972    o fix gad_advection.F (CubedSphere part), back to version 1.23
1973    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1974    
1975    checkpoint55a_post
1976    o merged code to
1977      * prescribe/read time-dependent open boundaries
1978        (works in conjunction with exf, cal)
1979      * sponge layer code for open boundaries
1980      * each boundary N/S/E/W now has its own CPP option
1981        (healthy for the adjoint)
1982    
1983    checkpoint55
1984    o up-to-date adjoint of previous breaks
1985      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1986      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1987      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1988      - carbon: * remove tr1-related adjoint verification
1989                * add ptracer as control variable
1990    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1991      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1992    
1993    checkpoint54f_post
1994    o in verification/carbin/ remove experiment related to
1995      ALLOW_PASSIVE_TRACER (array tr1 etc)
1996      code_ad/ input_ad/ results_ad
1997    
1998    o add two new packages
1999      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2000        + subject to optimization (memory)
2001      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2002        + subject to reordering (many GOTOs in the original code)
2003        + so far opps is called for every (i,j) point, and then operates in
2004          the vertical; one may want to reorder the scheme in order operate in
2005          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2006          fields)
2007    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2008      - all verification tests compile and run with linux_ia32_g77
2009      - defaults are compatible with current input files--nothing
2010        should change if you were not previously using MNC
2011      - MNC output has been added in numerous places (eg. timeave)
2012        but there are still a few writes not yet do-able with MNC
2013        (this is in progress)
2014      - flags now allow for either/or/both use of MDSIO and MNC and
2015        documentation will soon follow
2016      - numerous small formatting cleanups for ProTeX
2017    o add version info (via BUILD_INFO.h) to MNC and stdout
2018    
2019    checkpoint54e_post
2020    o add two new packages
2021      - pp81 (Packanowski and Philander, 1981), Richardson number and
2022        stratification dependent mixing
2023      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2024      - these scheme operate in a similar manner as KPP (without ghat, of
2025        course), however there is only one diffusivity that is used for both
2026        temperature and salinity (and passive tracers)ç
2027    o add offline package
2028    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2029      provided by Stephanie Dutkiewicz
2030    o genmake2: add ability to search for C compilers and cleanup test output
2031      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2032    
2033    checkpoint54d_post
2034    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2035    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2036      leading to additional shift by 5 days each year of integration
2037       (i.e. leading to considerable offset over the years)
2038    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2039    o start with no AB and no initial filtering (staggerTimeStep):
2040      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2041    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2042      (external loading & cpl import/export stay in forward_step.F)
2043    o update coupling interface to work with new staggerTimeStep
2044    o change MDSIO ptracers_pickup.
2045    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2046    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2047    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2048    
2049    checkpoint54c_post
2050    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2051      this affects (truncation error) output.txt of test-exp:
2052       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2053    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2054    o change Qnet to always be the net heat flux, (+upward).
2055      affects (truncation error) output of natl_box exp.: updated
2056    o define the max number of passive tracers in PTRACERS_SIZE.h
2057    o start to test mnc routinely in exp0
2058    o add sea-ice loading (sIceLoad) as a new forcing field.
2059    
2060    checkpoint54b_post
2061    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2062       impressive on Altix and Opteron systems)
2063    o diagnostics can now write NetCDF files through the mnc package
2064    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2065    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2066    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2067      affects (truncation error) output of lab_sea & natl_box exp.: updated
2068    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2069    
2070    checkpoint54a_post
2071    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2072    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2073    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2074    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2075      + internal_wave (shift in writing cg2d_ini_res)
2076    checkpoint54a_pre
2077    
2078    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2079      - modified verification/lab_sea and natl_box_adjoint accordingly
2080    
2081    checkpoint54
2082    checkpoint53g_post
2083    o prepare splitting of thermodynamics: store convect.counter in common block
2084    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2085      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2086    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2087    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2088    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2089    o restore adjointability
2090    
2091    checkpoint53f_post
2092    o modifications that affect AIM experiment results (update output.txt):
2093      - no advection of S at top interface Nr (pkg/generic_advdiff)
2094      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2095    o AIM pkg:
2096      - include stability function into surf.Flux derivative relative to Tsurf
2097      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2098    
2099    checkpoint53e_post
2100    o merged cylindrical coord configuration
2101    o added rotating_tank experiment
2102    checkpoint53e_pre
2103    
2104    checkpoint53d_post
2105    o faulks upgraded: re-generate output.txt that have changed:
2106       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2107    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2108    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2109    o added Sadourny discretization of Coriolis
2110      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2111      - re-enabled use of omega3 (useAbsVorticity)
2112    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2113      vector-invariant equations
2114      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2115    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2116      hopefully without new bugs
2117      - still to do: biharmonic friction for non-hydrostatic w
2118    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2119    o regenerated output for global_ocean_ebm (using -ieee)
2120    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2121      of mom_common/
2122      - simple re-arrangement of instructions within computing loop
2123    checkpoint53d_pre
2124    
2125    checkpoint53c_post
2126    o new version of coupler for AIM+thSIce and Ocean models
2127     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2128     - land: change Evaporation of snow
2129     - aim with thSIce: fix bug in snow-precip.
2130    o changes to calc_gw.F
2131     - bug fix for w^2 term near the bottom boundary
2132     - (hopefully) improve the lateral slip boundary condtions for use with
2133        partial/looped cells
2134      - because the bug fix changes two verification experiments anyway (exp5
2135        and plume on slope), change the lateral boundary condition from half slip
2136        to the value of no_slip_sides
2137    o ebm package wasnt quite up to the parallel task. Fixed that.
2138    o Adjoint of EBM package + verification
2139      * TLM OK
2140      * ADM not sufficient accuracy yet (needs further testing)
2141    
2142    checkpoint53b_post
2143    o Commiting new energy balance model to repository
2144      * package is pkg/ebm
2145      * verif. is verification/global_ocean_ebm
2146      * references are in ebm_driver.F
2147    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2148    C        Global thermohaline circulation. Part I:
2149    C        Sensitivity to atmospheric moisture transport.
2150    C        J. Climate 12(1), 71-82
2151    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2152    C        Global thermohaline circulation. Part II:
2153    C        Sensitivity with interactive transport.
2154    C        J. Climate 12(1), 83-91
2155    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2156    C        Destabilization of the thermohaline circulation
2157    C        by atmospheric eddy transports.
2158    C        J. Climate 7(12), 1870-1882
2159    o Will need long integration testing.
2160    checkpoint53b_pre
2161    
2162    o created pkg/mom_common in preparation for variable viscosity code
2163    o renamed and split ini_mnc_io
2164    o pkg/land: only liquid water can diffuse or run-off
2165    o AIM using land: soil wetness availability account for snow
2166    o added printMapIncludesZeros to EEPARMS namelist
2167    
2168    checkpoint53a_post
2169    o restore TAMC compatiility for exf_constants.h
2170      (no usage of _d in .h)
2171    o Additional storing in KPP in an attempt to fix
2172      TAMC problem with adjoint of KPP code.
2173      (no success...)
2174      Identical code works fine with TAF.
2175    o Fixed verification/natl_box_adjoint experiments.
2176      Initial conditions for Experiments 4 and 5 are now
2177      set to "SEAICE_initialHEFF=0", which is more reasonable,
2178      and hence gives results closer to that of Experiment 2.
2179      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2180    
2181    checkpoint53
2182    o stable checkpoint with up to date adjoint
2183      TLM tests only run for 1st grdchk at the moment. Its unclear if
2184      this is a code problem or a problem with resetting code for g_
2185      variables that is being autogenerated wrong.
2186      Otherwise:
2187       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2188       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2189         are both still in chaos following their security messes.
2190    
2191    checkpoint52n_post
2192    o various build (mostly genmake2) changes including:
2193      - ability to build/run more easily within Cygwin and MacOS X
2194      - more complicated Makefiles with a stronger dependence on Gnu Make
2195    o pkg/seaice modifications
2196      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2197        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2198        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2199      - changed proxy for geostrophic velocity and updated
2200        verification/lab_sea/results/* accordingly
2201      - removed ADI dynamic solver from pkg/seaice
2202      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2203        they caused a segmentation fault under certain circumstances
2204      - removed unused field WATR
2205    o bug fix in exf-package:
2206      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2207         now reflect that.
2208    o small fixes in the cal-package:
2209      - set reference date to first of January for the 'model'-calendar
2210      - failing of cal_CheckDate in cal_FullDate now actually results in a
2211        warning
2212    o small modifications in exf-package to increase flexibility:
2213      - change climtempfreeze from a constant to a runtime parameter that
2214        is specified in data.exf_clim (default = -1.9)
2215      - introduce runtime parameter windstressmax (default = 2.0) that is
2216        specified in data.exf
2217    o fix in pkg/thsice:
2218      - update Evap (Tsf changes) to be consistent with Latent heat flux
2219      - maintain snow precipitation unchanged (even if Tsf >=0).
2220     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2221    
2222    checkpoint52m_post
2223    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2224      this does not change any of the results, because myIter=0 in swfrac always
2225      lead to jwtype=2 (the default anyway), but the call makes little sense
2226      as a default
2227    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2228    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2229      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2230    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2231    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2232    o extending useSingleCpuIO option to work with new exch2 I/O format
2233      - old-style, missing-tile I/O is still accessible by defining CPP
2234        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2235    o monitor package can write to NetCDF files and/or STDOUT
2236    o fix re-definition bug in MNC_GRID_INIT_ALL()
2237    o doc/api_reference added
2238      - a framework for building an API Reference Manual using all
2239        the "protex" comments embedded in the code
2240      - see pkg/generic_advdiff, pkg/mnc for examples
2241    o MNC:
2242      - make myThid the last argument for all subroutines
2243      - new default for the grid files: NO halos
2244      - add useMNC and other run-time flags
2245      - separate per-file-group handling of the unlimited dimension
2246      - early initialization of MNC w/ flags read at the eeboot stage
2247        and lookup tables set in initialize_fixed
2248      - write all MNC output to a freshly-created directory
2249    o thermodynamics sea-ice (thsice) is now tested with testreport.
2250    o test exp. advect_cs: use the standard cs32 grid ; update output.
2251    o Added functionality to grdchk:
2252      pick global i,j,k position (or nearest wet) where to perform check.
2253    
2254    checkpoint52l_post
2255    o new land formulation:
2256      a) use ground enthalpy as prognostic variable to ensure exact
2257         energy conservation.
2258      b) account for water temperature and for latent heat of freezing
2259         in all processes (rain, run-off, ground storage)
2260      c) compute surface and ground temperature implicitly.
2261    o aim_v23 modification for new land model:
2262      a) Treat separately land / ocean / sea-ice surface fluxes
2263         to allow implicit computation of land & sea-ice surface temp.
2264      b) add snow precipitation.
2265    checkpoint52l_pre
2266    
2267    o fix problem (when 1 tile is empty) in min/max monitor.
2268    o fix bug in timeAve (u,vZetatave in common block)
2269    o no restoring terms under ice for pkg/seaice
2270    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2271    o bug fix for pkg/seaice pickups
2272    o change MNC call locations and add coordinate attributes
2273    o mask vorticity at the corner ; affects global_ocean.cs output
2274    o fix ini_curvilinear_grid ; test CS experiments with mpi
2275    o aim.5l_cs: modify sea-ice fraction input file ; update output
2276    o exf: Adding simple range check routine for exf fields after read
2277    
2278    checkpoint52k_post
2279    o removed top-level directory "diags"
2280      - we migrated these functions to pkg/timeave a long time ago
2281    o fixed bug introduced in pkg/monitor
2282    o accuracy ctrlprec = 32 insuffient for gradient checks using
2283      averaged fields (I/O via cost_averages)
2284      -> use ctrl.h in active_file*.F to control I/O precision.
2285    o paramter list of CALL ADTHE_MAIN_LOOP
2286    o added initial do_the_model_io to ecco
2287    o set all ...Freq to zero after cost_final
2288      taveFreq, dumpFreq, pChkptFreq
2289    o MAIN and ECCO differentiability restored
2290    
2291    checkpoint52j_post
2292    o fix nchklev in tamc.h for global_ocean...
2293    o Bringing flow and store directives up-to-date
2294    o Really weird thing!
2295      call do_the_model_io from the_main_loop with parameters
2296      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2297      TAF places a faulty re-call of initialise_varia
2298      after cost_final call which should not be there!
2299    checkpoint52j_pre
2300    
2301    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2302      error messages
2303    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2304    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2305      debug output
2306    o modfied mdsio_writefield.F to handle non-global files under exch2
2307    o update AIM Cubed-Sphere exp (aim.5l_cs):
2308      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2309    o update AIM Equatorial Channel exp:
2310      use standard aim_v23 pkg and change the SST fields to be more realistic.
2311    o globalFile now works with exch2
2312    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2313      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2314    o limit timeave output for hi-res integrations
2315    
2316    checkpoint52i_post
2317    o removed CPP_EEOPTIONS.h from verification/*/code
2318    o updated the tiling for global_ocean_pressure
2319    checkpoint52i_pre
2320    
2321    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2322      the old pkg/aim).
2323    
2324    checkpoint52h_pre
2325    o shortened offending lines in exch2_send_rx?.template
2326    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2327    o genmake2: add build & execute test for NetCDF code
2328    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2329      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2330    o added useSingleCPUIO flag to monitor.F and mon_out.F
2331    o added temporary hack for sea-ice dynamics on the cube:
2332      metric terms are ignored and it is assumed that
2333      there is no sea-ice on cube faces 1, 2, 4, and 5.
2334    
2335    checkpoint52f_post
2336    o added exch2 cube routines to pkg/exch2
2337    o modified hs94.cs-32x32x5 to use it
2338    o added new grid files to hs94.cs-32x32x5
2339    checkpoint52f_pre
2340    
2341    checkpoint52e_post
2342    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2343      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2344    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2345      to work with implicit vertical advection and AB ;
2346    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2347    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2348     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2349    checkpoint52e_pre
2350    
2351    o fix bug in impldiff when Nr=1 or Nr=2.
2352    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2353    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2354    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2355      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2356    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2357    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2358    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2359    
2360    checkpoint52d_post
2361    o re-tiled many expts to allow comparison in multi-processor mode
2362      - updated output accordingly
2363      - changed hs94.128x64x5 to use intial T from file rather than use the
2364        random number generator
2365    o add infrastructure in model routines for fizhi and gridalt packages
2366    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2367    o changes to permit hi-res, cubed-sphere, configuration
2368      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2369      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2370      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2371        of surface winds for the cube
2372      (A verification experiment, based on global_ocean.cs32x15, but with
2373       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2374       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2375       complete with example surface forcing files and matlab scripts to look
2376       at the output and compare it with that of global_ocean.cs32x15.)
2377    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2378       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2379       to conform to the common rule.
2380    o check-in the first version of the coupler + interfaces for multi-components
2381       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2382       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2383       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2384       - ocean and atmos. share the same horizontal grid (no interpolation).
2385       - exchanges between component and coupler is done in forward_step
2386    o new verification experiment, cpl_aim+ocn:
2387       coupled ocean - AIM atmosphere on cs32 grid.
2388    
2389    checkpoint52d_pre
2390    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2391    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2392    
2393    checkpoint52c_post
2394    o Fixing OPTIONS files for use of exf:
2395      - ALLOW_ECCO not needed
2396      - ECCO_CPPOPTIONS.h should not be included from
2397        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2398        as has been the case in the past
2399      - All cal/exf related options are currently set in
2400        single header file. Should remain so until we
2401        agree on a consistent new policy.
2402    o Removed all CPP options for cal package.
2403      cal has no more CPP options.
2404    o modified STOREs in GAD_ADVECTION
2405    o corrected key comp. for passkey
2406    
2407    checkpoint52b_post
2408    o new version: "thsice" of thermodynamic sea-ice pkg:
2409     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2410     - modify fluxes but do not change theta directly;
2411     - light cleaning of bulk_force pkg (still needed with thsice).
2412     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2413       + output_thsice.txt to test thsice & bulk_force pkgs.
2414    o put back grid & coriolis monitor output.
2415    checkpoint52b_pre
2416    
2417    o call "do_the_model_io" at the beginning (=> dump initial state)
2418    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2419    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2420      (need info on NUMBER_OF_PTRACERS)
2421    o missing PTRACERS headers in some routines
2422    o default tamc.h in pkg/autodiff supposed to crash
2423      to ensure proper customization
2424    
2425    checkpoint52a_post
2426    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2427      - moved surfaceTendencyTice from pkg/seaice to main code
2428      - subroutine FREEZE_SURFACE now limits only surface temperature
2429        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2430        => new output.txt for global_ocean.cs32x15 & global_with_exf
2431      - keep the old version of FREEZE for backward compatibility;
2432        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2433      - corresponding modifs for TAF directives
2434    o added surface flux output variables to TIMEAVE_STATVARS
2435    o time-averaged output for pkg/ptracers
2436    o fix problem with ECCO-related divided adjoint
2437      snapshot file was missing some ad-variables,
2438      but no warning issued by TAF
2439    
2440    checkpoint52a_pre
2441    o some bug fixes for #undef REAL4_IS_SLOW
2442    
2443    checkpoint52 = ecco_c52_e35
2444    o after testing adjoints of checkpoint51u_post
2445    
2446    checkpoint51u_post
2447    o this is the post-merge tag of the ecco-branch
2448      (needs another clean checkout and re-testing)
2449    o various natl_box_adjoint configs and results
2450      but no input fields
2451    o obcs adjoint not yet merged!
2452    o adding ECCO global 1x1 and 2x2 degree configs
2453    o updated/extended some store directives for seaice
2454    o pkg/ecco now containes ecco-specific part of cost function
2455    o top level routines the_main_loop, forward_step
2456      supersede those in model/src/
2457      previous input data.cost now in data.ecco
2458      (new namelist ecco_cost_nml)
2459    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2460    
2461    checkpoint51t_post
2462    o this is the pre-merge tag of the ecco-branch
2463    
2464    checkpoint51s_post
2465    o cleanup: removed various obsolete #define-s
2466    o pkg/grdchk
2467      - renamed 'ph-grd 3' to 'grad-res'
2468      - merged from ecco-branch
2469        (remaining bug fixes for obcs gradient checks)
2470      - additional high-precision output for testreport
2471        (grep for 'precision_grdchk_result')
2472    
2473    checkpoint51r_post
2474    o cleaned up or removed CPP_OPTIONS.h files
2475    o updated results for some of the tests to reflect the new
2476      optfiles (-ieee: -O0 instead of -O3)
2477    
2478    checkpoint51q_post
2479    o cd_code:
2480      - moved cd_scheme.F -> cd_code_scheme.F
2481      - separate read_checkpoint from cd_code_ini_vars.F
2482      - separated cd_code part from write_checkpoint
2483      - updated AD_SOURCE, generated .flow
2484      - added CD_CODE_VARS.h to the_main_loop
2485      - Moving cd_code specific store dir.s to pkg/cd_code
2486    o ctrl package totally restructured
2487      - pack/unpack now optional and decoupled from
2488        xx_/adxx_ I/O
2489      - ctrl_pack/unpack cleaned
2490        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2491      - confined inclusion of AD_CONFIG.h to where necessary.
2492    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2493    
2494    checkpoint51p_post
2495    o create initial cd_code package
2496      - WARNING: the initialization of fields within packages
2497        is broken because INI_FIELDS (where READ_CHECKPOINT is
2498        called) is called *before* PACKAGES_INIT_VARIABLES.
2499        This seems to be backwards since
2500        1) its important to initially zero the entire field including
2501           the "halo" region
2502        2) zeroing needs to be done *before* reading pickup info
2503           and the pickup call might or might not happen in any
2504           particular run
2505      - this needs an overhaul for R2
2506    o cleanup verification/*/code/GMREDI_OPTIONS.h
2507    o cleanup testreport
2508    
2509    checkpoint51o_post
2510    o bringing AD-related verif's up to date with genmake2
2511      - carbon/
2512      - global_ocean.90x40x15/
2513      - hs.94.1x64x5/
2514      - (front_relax/ )
2515    o (more) consistent directory structure for AD-related verif.'s
2516    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2517    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2518    o bug fix in find_alpha.F for MDJWF:
2519      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2520        change rho -> rho-rhoConst
2521      - replace call find_rho to find_rhonum
2522    o initialisation of rFlx extended to full array (required by TAF)
2523      and shifted to thermodynamics
2524    o removed PTRACERS.h in ptracers routine
2525    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2526    o Correcting initialisations for fVerU, fVerV.
2527    o helping TAF to recognize dependency on kUp for
2528      fVerU, fVerV
2529    o Replacing delZ by delR in pkg/ctrl/
2530    checkpoint51o_pre
2531    
2532    o undid all of cp51 pending some cleanups and discussion
2533    o added the [#include "AD_CONFIG.h"] statement to all files that need
2534       it for adjoint/tl #defines
2535     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2536     o removed tools/genmake since it no longer works
2537    
2538    checkpoint51n_post
2539    o modifications to make FREEZE flux visible to pkg/kpp
2540      - moved surfaceTendencyTice from pkg/seaice to main code
2541      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2542      - subroutine FREEZE now limits only surface temperature
2543        (this means new output.txt for global_ocean.90x40x15,
2544         global_ocean.cs32x15, and global_with_exf)
2545    o added surface flux output variables to TIMEAVE_STATVARS
2546    
2547    checkpoint51n_pre
2548    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2549    o added [#include "AD_CONFIG.h"] to all files that use the following
2550      defines:
2551      - ALLOW_ADJOINT_RUN
2552      - ALLOW_TANGENTLINEAR_RUN
2553      - ALLOW_ECCO_OPTIMIZATION
2554    
2555    checkpoint51m_post
2556    o incorporating changes to get TAMC/TAF working in genmake2
2557      - added new TAMC/TAF targets to the Makefile
2558      - various cleanups related to package handling
2559      - these changes should have no impact on the forward model
2560    
2561    checkpoint51l_post
2562    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2563     - faster algorithm for cal_addtime.F
2564     - higher precision arithmetic, where needed
2565     - pkg/exf *startdate variables changed from calendar date to
2566       model integration time
2567    
2568    checkpoint51l_pre
2569    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2570    o enable to apply restoring on S & T only in a latitude band.
2571    o update output (external_forcing_surf modif. change truncation errors)
2572       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2573    
2574    checkpoint51k_post
2575    o change default to: useNHMTerms=.FALSE.
2576     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2577       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2578     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2579        exp1, ideal_2D_oce
2580     - change data file of oceanic exp (leave the results unchanged for now)
2581       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2582    o set gravitySign automatically according to the vertical coordinate used
2583      (and change sign: back to "logical" value: +1 when R increases downward)
2584    o added an include barrier to the default CPP_OPTIONS.h and
2585      removed the #include "PACKAGES_CONFIG.h" from it
2586    o fix a bug in mom_fluxform (from chk51j_post)
2587    
2588    checkpoint51j_post
2589    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2590    o adjusted some flow directives (dynamics, thermodynamics)
2591    o added cubed-sphere case to test cost function
2592    o heckpoint_lev?_directives.h now include
2593      pkg-specific directives, whenever those are enabled.
2594    o Moving pkg-specific flow directives to corresponding pkg
2595      Moving pkg-specific differentiation list to corresponding pkg
2596      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2597      ---> conventions are
2598           - pkg_ad.flow
2599           - pkg_ad_diff.list
2600           - pkg_ad_check_lev?_dir.h
2601    
2602    checkpoint51i_post
2603    o merge of the branch-genmake2
2604      - knowingly breaks the older genmake
2605      - automatic generation of all ALLOW_${PKG_NAME} defines
2606      - new testreport supersedes older testscript
2607    o large number of package inclusion and header cleanups
2608    checkpoint51i_pre
2609    
2610    o new output for adjoin of global ocean vector invariant
2611    o fix for checkpoint of thermodynamic seaice and bulk_force
2612    o Steph gchem various cleanups
2613    
2614    checkpoint 51h_pre
2615    o fixed some single quotes
2616    o modify gchem pkg to be more versatile
2617    o modifications to clean up dic pkg
2618    o add pkg/cfc
2619    
2620    checkpoint51g_post
2621    o provide links for ARPACK and ADM*TLM
2622    o start removing verification/vero/
2623    o update AD-related stuff
2624      (in particular some IF-statements in model/src/ routines)
2625    o adding to verification/global_ocean.90x40x15/ adjoint of
2626      vector invariant setup
2627    
2628    checkpoint51f_post
2629    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2630    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2631      of tracer Green's fucntions for ocean inversion project.
2632    
2633    checkpoint51f_pre
2634    o Added on-the-fly spatial interpolation capability
2635        "USE_EXF_INTERPOLATION" to pkg/exf.
2636      - This is a temporary Cartesian-grid hack until
2637        the super-duper ESMF coupler becomes available.
2638      - See verification/global_with_exf/README for usage example.
2639      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2640        flags and modified pkg/seaice accordingly.
2641    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2642        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2643        non-local transport term.
2644    
2645    checkpoint51e_post
2646    o pkg/mom_vecinv:
2647      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2648      - add time-ave diagnostic of vorticity advection.
2649    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2650    o atmospheric geopotential: - include water vapor effect;
2651                                - use p^kappa in p* scaling.
2652    o land pkg: read initial state from files.
2653    o AIM : add stratospheric drag in the upper level
2654    
2655    checkpoint51d_post
2656    o change function ILNBLNK (=> last non-blank char.) to return zero
2657      (instead of the string length) when the string. char is empty
2658    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2659    o modif's to restore TAMC compatibility
2660      - avoid "_d" constructs in PARAMETER declarations
2661      - avoid interrupting lines by comment lines
2662    o Use cluster local disks for purely local I/O
2663      vs. globally visible disks needed for ctrl stuff
2664      (merged from ecco-branch)
2665      - new active_file_loc... and mdsio_..._loc routines
2666      - affected packages: autodiff, ctrl, grdchk, mdsio
2667    
2668    checkpoint51c_post
2669    o introducing integer flag debugLevel
2670      - debLevZero: suppress all output
2671      - debLevA: standard
2672      - debLevB: equivalent to current debugMode=.TRUE.
2673    o introducing pathname variable mdsioLocalDir for mdsio
2674      that can be specified at runtime
2675      (relevant for cluster I/O to local disk)
2676    `
2677    >>>checkpoint51b_post
2678    adjoint of ptracers
2679    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2680    o extended state in checkpoint_lev?, etc.
2681    o alternative ctrl/cost with tr1 or ptracer
2682    o new comlev1_bibj_ptracers
2683    o new ptracers.flow
2684    o made ptracers_forcing same as external_forcing_s
2685    o added verification for adjoint with ptracers
2686      - adm. grdchk fail so far
2687      - tlm. grdchk OK
2688      - checked tapelev/comlev recomputations: OK
2689    <<<checkpoint51b_pre
2690    
2691    checkpoint51a_post
2692    o added code for biogeochemistry package
2693      - new pkgs: dic, gchem
2694      - new subroutine in ptracers
2695    o modify code for biogeo packages
2696      - in model/src and pkg/ptracers
2697    
2698    checkpoint51
2699    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2700      - autodiff, ctrl, exf, grdchk, seaice
2701      kept separate packages
2702      - cost, ecco, obcs
2703    o updating verification/internal_wave, verification/lab_sea
2704      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2705    
2706    checkpoint50i_post
2707    o Preparing next differentiable checkpoint and sync
2708      of MAIN vs. ecco-branch
2709      - 1st step: this one is differentiable
2710      - 2nd step: next(! not this) checkpoint will have updated packages
2711                  from ecco-branch)
2712    
2713    checkpoint50h_post
2714    o new package "land": provide surface BC for AIM.
2715    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2716    o AIM: use true log-P extrapolation for near surface temp (= as in
2717        F.Molteni paper) ; update aim.5l_cs output.
2718    o New variable in PARM03 for more flexible pickups
2719    o somewhat cleaned package initialisation sequence for
2720      ctrl/ cost/ ecco/ in packages_... routines
2721    
2722    checkpoint50g_post
2723    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2724      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2725      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2726        made the default because of faster convergence than ADI
2727    
2728    checkpoint50f_post
2729    o exf totally restructured
2730      - replaced all exf_set_ routines by one generic exf_set_gen.F
2731        and made sure it's still differentiable
2732      - split exf_getffields.F into new exf_bulkformulae.F
2733      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2734      - updated adjoint/makefile and relevant verif. accordingly
2735    
2736    checkpoint50f_pre
2737     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2738          + change Evap over land. (update aim.5l_cs output)
2739     o added missing .cvsignores and made uniform across expts
2740     o changed configuration of tidal_basin_2d expt
2741     o added pkg/debug functions for tracing code in fatal crashes
2742     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2743     o new fn in pkg/monitor to stop model if solution grows too big
2744     o removed lots of single quotes from comments
2745    
2746    checkpoint50e_post
2747    o make KPP work with PTRACERS
2748     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2749       nearly a copy of kpp_transport_s
2750     - there is no analogue to SurfaceTendencyS, so I have to use
2751       gPtr(of the surface layer) instead
2752    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2753    checkpoint50e_pre
2754    
2755    checkpoint50d_post
2756    o change kpp output from multiple-record state files to single-record state
2757      files analogous to write_state.F
2758    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2759      analogous to the cg2d-related output.
2760    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2761      so that writing to internal file fn (with length 512) fails.
2762    checkpoint50d_pre
2763    
2764    checkpoint50c_post
2765    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2766    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2767    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2768    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2769    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2770    
2771    checkpoint50c_pre
2772    Merging from release1_p13:
2773    o bug fix for pkg/seaice dynamic solver
2774    o Added SEAICE_initialHEFF to pkg/seaice
2775    
2776    checkpoint50b_post
2777    o store u*,v* in gU,V instead of in guNm1,gvNm1
2778    o in order to put the momForcing out of the Adams-Bashforth:
2779      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2780      to timestep.F
2781    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2782    o re-generate output for highly sensitive test-exp:
2783       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2784    
2785    checkpoint50b_pre
2786    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2787    o corrected CPP option mismatch in exf_Bulk... functions for case
2788      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2789    
2790    checkpoint50a_post
2791    o Bug fix for merging between c50 and KPP.
2792      ikey was passed from thermodynamics to kpp_calc via
2793      common block rather than being recomputed in kpp_calc,
2794      in contradiction with new key itdkey.
2795      New key ikppkey created, and tamc.h headers updated.
2796    
2797    checkpoint50
2798    - 2nd step of merge with ecco-branch:
2799      merge changes in ecco-branch back into main trunk
2800    - bug fix in find_alpha
2801    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2802    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2803    - merged some sliced AD support routines
2804    
2805    checkpoint49
2806    merged from ecco-branch:
2807    o exf:
2808      - Enable initialisation of forcing fields to constant
2809        (runtime) values.
2810      - in exf_getffields.F
2811        Reduce i-/j-loop to interior domain, discarding overlaps.
2812        That also fixes wrong TAF-key computations for key_1, key_2
2813        with bulf formulae.
2814      - exf_init.F modify #ifdef for exf_init_evap
2815      - exf_getffieldrec.F, ctrl_getrec.F
2816        The following INT-usages are not safe:
2817          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2818          fldcount = int(fldsecs/fldperiod) + 1
2819        and were modified.
2820    o autodiff: checkpoint_lev...
2821      - updated storing for bulk formulae (some arrays were missing)
2822      - added state for seaice package
2823      - synchronized with main branch
2824    o DIVA:
2825      Modif.s in
2826      - the_main_loop.F
2827      - the_model_main.F
2828      and added cost_final_restore.F cost_final_store.F
2829      o With these changes, it is possible to fully separate
2830        the first forward run to compute the cost function (mdthe_main_loop)
2831        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2832        into separate model executions.
2833        This enables better tuning of DIVA to given queue sizes.
2834      o Loss of cost function value in consecutive DIVA runs is
2835        fixed by storing to 'costfinal' file.
2836      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2837        beginning/end of adjoint integration is accounted for.
2838      The current changes apply to TAF-1.4.26.
2839      TAF has one remaining bug, requiring one manual change
2840      (see MITgcm manual).
2841    o cal: synchronized between MAIN and ecco-branch
2842    
2843    checkpoint48i_post
2844    o Changes to restore differentiability of code w.r.t. previous tag
2845      (mostly adding new routines to make list and replacing
2846      pressure by totPhiHyd).
2847    o Updated and merged grdchk package
2848      - has both ADM and TLM checks
2849      - works for single- and multi-proc.
2850      - output cleaned
2851      - worked successfully for parallel DIVA
2852    o genmake:
2853      - Adding -platform=SP4
2854      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2855    o Modif. for DIVA:
2856      ctrl_unpack should not be called in intermediate DIVA interval.
2857      (similar thing would apply for active files such as
2858      tbar, sbar, psbar, which should not be reinitialised;
2859      only relevant for ecco-branch)
2860    
2861    checkpoint48h_post
2862    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2863    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2864    o Added SEAICE_initialHEFF to pkg/seaice
2865    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2866    
2867    checkpoint48g_post
2868    --- EOS:
2869    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2870      store total Potential in totPhyHyd for diagnostics & EOS.
2871    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2872    --- Pressure/geopotential gradient:
2873    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2874    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2875      ( changes results of global_ocean_pressure )
2876    o NLFS + z-coord.: add eta*Rho' contribution.
2877    o accurate phiHyd when using interface-W at the middle between 2 centers
2878     ( changes results of ideal_2D_oce )
2879    o includes r* 2nd term in potential gradient.
2880    
2881    checkpoint48f_post
2882    Merging from release1_p12:
2883    o Modifications for using pkg/exf with pkg/seaice
2884      - improved description of the various forcing configurations
2885      - added basic radiation bulk formulae to pkg/exf
2886      - units/sign fix for evap computation in exf_getffields.F
2887      - updated verification/global_with_exf/results/output.txt
2888    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2889      (SBO) core products, including oceanic mass, center-of-mass,
2890      angular, and bottom pressure (see pkg/sbo/README.sbo).
2891    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2892      to avoid negative values in shallow regions.
2893      - updated verification/natl_box/results/output.txt
2894      - updated verification/lab_sea/results/output.txt
2895    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2896    o Added useSingleCpuIO option (see PARAMS.h).
2897    o Updated useSingleCpuIO option in mdsio_writefield.F to
2898      work with multi-field files, e.g., for single-file pickup.
2899    o pkg/seaice:
2900      - bug fix in growth.F: QNET for no shortwave case
2901      - added HeffFile for specifying initial sea-ice thickness
2902      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2903    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2904      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2905    o pkg/seaice:
2906      - adjoint-friendly modifications
2907      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2908    
2909    checkpoint48e_post
2910    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2911    o dynamics: change definition of computational domain & adapt mom_fluxform
2912      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2913    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2914        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2915        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2916        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2917        inverted_barometer solid-body.cs-32x32x1
2918      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2919    
2920    checkpoint48d_post
2921    o in preparation for r*:
2922     a) use pre-computed gradient of hydrostatic potential:
2923        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2924     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2925        => affects results of glob_oce_pressure (different truncation error)  
2926      update output.txt of ideal_2D_oce & global_ocean_pressure
2927    
2928    checkpoint48d_pre
2929    o in preparation for r*:
2930      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2931      pass the 2 comp. of the grad. as arguments to momentum S/R.
2932      but for the moment, only used if it does not change the results.
2933    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2934    
2935    checkpoint48c_post
2936    Modifications in treatment of initial flux forcing controls
2937    to avoid extra storing of flux fields.
2938    
2939    checkpoint48c_pre
2940    o Added tidal_basin_2d experiment (currently 1D!)
2941    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2942    
2943    checkpoint48b_post
2944    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2945     (modification to pressure gradient not yet implemented)
2946    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2947      (for U & V) that are used for vertical advection of momentum.
2948    
2949    checkpoint48a_post
2950    o In preparation for r*, use temp. array to compute vertical transport
2951       in flux-form momentum pkg. => change results of few test-exp.
2952      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2953                        lab_sea, natl_box & plume_on_slope
2954    
2955    checkpoint48
2956    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2957    
2958    checkpoint47j_post
2959    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2960    o moved adexch from forward_step to addummy_in_stepping
2961    o added exch in ctrl_map_...
2962    o aveFreq.=0. at end of cost_final to avoid overwrite in
2963      reverse checkpointing loop
2964    o Yet more changes in gmredi:
2965      * adgmredi_calc_tensor
2966        avoiding all recomputation of gmredi_slope_limit
2967      * adgmredi_x/y/rtransport
2968        added flag for excessive storing to avoid recomp. of
2969        u/v/rtans, dTdx/y/z
2970        -> this is not really necessary and very memory-consuming
2971      * adgmredi_slope_psi:
2972        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2973      * gmredi_slope_limit
2974        re-activated full calculation of taperfct for case 'ac02'
2975    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2976    
2977    checkpoint47i_post
2978    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2979    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2980      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2981    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2982    o gmredi: fix few bugs.
2983    
2984    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2985    This will be a good checkpoint to plug into the ecco-branch.
2986    o few modif.'s to get latest version adjointed
2987      (mainly kick out code in ini_linear_phisurf)
2988    o modif's to run adjoint with exactConserv
2989    o case GM_BOLUS_ADVEC should be cleaned
2990      S/R gmredi_slope_psi should be cleaned
2991    o verification/carbon now has exactConserv=.TRUE.
2992    
2993    checkpoint47g_post
2994    o time-average AIM output: becomes independent from statvars time-average
2995      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2996    o After TAF bug fix:
2997      Tested adjoint of gmredi package.
2998      Tests were done with checkpoint47 rather than with latest
2999      checkpoint47f_post since the latter is broken for the adjoint
3000      verification/carbon/ contains both ADM and TLM gradient checks.
3001    Here they are, before they get changed/lost/stolen.
3002    Mostly modif.'s to fix numerical sensitivities.
3003    Gradient checks OK for
3004    - GM_taper_scheme:
3005      * clipping
3006      * ac02
3007      * linear
3008      * glw91
3009      * dm95
3010      * ldd97
3011    - GMREDI_OPTIONS:
3012      * GM_VISBECK_VARIABLE_K
3013      * GM_NON_UNITY_DIAGONAL
3014      * GM_EXTRA_DIAGONAL
3015      * GM_BOLUS_ADVEC
3016    in conjunction with data.gmredi parameters to be checked in
3017    in a few minutes under verification/carbon/code/
3018    
3019    checkpoint47f_post
3020    Merging from release1_p10:
3021    o modifications for using pkg/exf with pkg/seaice
3022      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
3023        and SEAICE_EXTERNAL_FLUXES
3024      - pkg/exf CPP options EXF_READ_EVAP and
3025        EXF_NO_BULK_COMPUTATIONS
3026      - usage examples are Experiments 8 and 9 in
3027        verification/lab_sea/README
3028      - verification/lab_sea default experiment now uses
3029        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
3030    
3031    checkpoint47e_post
3032    o created a tag prior to creating a branch
3033    
3034    checkpoint47d_post
3035    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
3036      at the bottom boundary had an erroneous half slip boundary condition
3037    o added bottom drag and no slip boundary condition capabilities to
3038      oceanic pressure coordinates code
3039    o added new verification experiment global_ocean_pressure, this experiment is
3040      also described in the tutorial section of the manual
3041    checkpoint47d_pre
3042    
3043    checkpoint47c_post
3044    o Added a verification experiment for a global cubed-sphere ocean run
3045      -  verification/global_ocean.cubed32x32x30
3046      -  uses pkg/therm_seaice and pkg/bulk_forcing
3047    
3048    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
3049    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
3050      when using P-coordinate; only implemented for atmospheric config.
3051    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
3052      NOTES: requires option NONLIN_FRSURF to be "#define".
3053    o update advect_xz/results/output.txt (left from checkpoint44g_post)
3054    
3055    checkpoint47b_post
3056    Merging from release1_p9:
3057    o pkg/seaice
3058      - removed GOTO's and added taf directives
3059      - double precision constants to reduce the g77 (Linux)
3060        to F77 (SGI) differences reported in release1_p8
3061    o tools/genmake
3062      - added SGI options
3063    o verification/testscript
3064      - updated to that of checkpoint47a_post
3065    o verification/global_ocean.90x40x15/input/eedata
3066      - modified for SGI f77 compatibility
3067    o verification/lab_sea
3068      - added description of sea-ice model
3069      - added missing matlab routines
3070      - added test of thermodynamics parallelization
3071    
3072    checkpoint47a_post
3073    o new pkg: aim_v23
3074     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
3075       for now, keep the same surface forcing as before.
3076     - Part-Cell implemented into AIM; check that Heat & Water are conserved
3077     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
3078     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
3079    o add diagnostic of surface correction term in monitor output
3080    
3081    o bulk_force and therm_seaice
3082    - Two packages:  bulk_force (Bulk forcing)
3083      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
3084    - Earlier integration from Stephaine Dutkiewicz
3085      and Patrick Heimbach.
3086    - Two ifdef statements for compile time,
3087       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
3088    
3089    checkpoint47
3090    differentiable version of checkpoint46n_post
3091    o bug fix in quasihydrostaticterms
3092    o * "clean" adjoint code (in terms of extensive recomputations)
3093        can now be obtained for all GMREDI options (i.e. for
3094        - GM_VISBECK_VARIABLE_K
3095        - GM_NON_UNITY_DIAGONAL
3096        - GM_EXTRA_DIAGONAL
3097        - GM_BOLUS_ADVEC )
3098      * However, wrong gradient check problem remains unsolved.
3099      * New CPP options have been introduced for different
3100        tapering schemes
3101    o external_fields_load now part of differentiation list
3102    o pressure needs multiple storing;
3103      would be nice to have store_pressure at beginning or
3104      end of forward_step, e.g. by having phiHyd global (5-dim.)
3105      (NB: pressure is needed for certain cases in find_rho,
3106      which is also invoked through convective_adjustment).
3107    o recomputations in find_rho for cases
3108     'JMD95'/'UNESCO' or 'MDJWF' are OK.
3109    o #define ATMOSPHERIC_LOADING should be differentiable
3110    o ini_forcing shifted to begining of initialise_varia
3111    o Incorporating QNVS line search routines into MITgcm
3112      (this is separate code, and therefore not under pkg)
3113      lsopt/, optim/
3114    o Updated verification/carbon/
3115      - #define GM_VISBECK_VARIABLE_K
3116      - GM_taper_scheme    = 'ldd97'    
3117    
3118    checkpoint46n_post
3119    Merging from release1_p8:
3120    o verification/natl_box:
3121      updating new external_fields_load routine
3122    o New package: pkg/seaice
3123      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
3124      The sea-ice code is based on Hibler (1979-1980).
3125      Two sea-ice dynamic solvers, ADI and LSR, are included.
3126      In addition to computing prognostic sea-ice variables and diagnosing
3127      the forcing/external data fields that drive the ocean model,
3128      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
3129      The implied surface heat flux is then stored in variable
3130      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
3131      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
3132      non-local transport term.  Because this call precedes model
3133      thermodynamics, temperature under sea-ice may not be "exactly" at
3134      the freezing point by the time theta is dumped or time-averaged.
3135      N.B.: fairly large differences in accuracy occur across
3136            different platforms/compilers; comparison between
3137            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
3138            generated output gives:
3139       T           S           U           V
3140      C D M    c        m  s        m  s        m  s        m  s
3141      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
3142      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
3143      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
3144    
3145      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
3146    o GAD:
3147      - generated new common blocks to account for call of
3148        same gad routines with differing traceridentities
3149        (needed to modify tracerIdentity indices in GAD.h)
3150      - generated separate common blocks for case useCubedSphereExchange
3151        (Department of Futurology)
3152      - parameter lists to gmredi_?transport: added tracerIdentity
3153      - added new key indices to tamc.h
3154    o external_fields_load:
3155      - added this routine to TAF list
3156      - needed to make some common blocks global and additional storing
3157        along the same lines as exf package (checkpoint_lev?_directives.h)
3158    o exf:
3159      updated external forcing package
3160      - bug fixes carried over from ecco-branch
3161        (missing OBCS_OPTIONS.h in two routines)
3162      - enable easy to use "no forcing".
3163      - added exf I/O for atmospheric loading
3164      - added exf I/O for runoff data
3165      - transfered scaling between exf <-> MITgcm to exf namelist
3166    o Adding new verification experiment global_with_exf.
3167      This verification experiment is almost identical to the
3168      global_ocean.90x40x15 experiment, except that it uses
3169      the exf (and cal) package instead of the
3170      external_fields_load routine (cf README file).
3171    
3172    checkpoint46m_post
3173    o modified testscript to return -- when there are no lines of "%MON" output
3174    o added new flag "quasiHydrostatic" for QH mode
3175      and new routine quasihydrostaticterms()
3176    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
3177      New routine: mom_u_coriolis_nh()
3178    o fixed sign of non-hydrostatic metric terms in u and v equations.
3179      Depend on correct sign of gravitySign.
3180    o added work.pc* to .cvsignore in aim directories using ifc
3181    o introduced flag for controllin non-hydrostatic metric terms
3182    o removed gravitySign from PARM04
3183    o switched to g77/ifc from pgf77 in aim experiments
3184    
3185    checkpoint46l_post
3186    o made convective adjustment work with pressure coordinates:
3187     - changed the direction of k-loop in convective_adjustment.F for the
3188       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
3189     - adjusted the reference pressure k-index in convective_adjustment.F
3190     - adjusted the convection condition in convect.F (in analogy to
3191       calc_ivdc.F)
3192     - convective_adjustment no longer computes anything on the halos
3193     - removed the warnings about negative salinity from find_rho.F and
3194       find_alpha.F; instead the new routine look_for_neg_salinity, called
3195       at the beginning of find_rho, find_alpha, and find_beta, does a
3196       check of the entire slice, if CPP-option
3197       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
3198    checkpoint46l_pre
3199    
3200    checkpoint46k_post
3201    o fixed the verification/global_ocean.90x40x15 experiment:
3202     - new bathymetry (the world according to A., JMC, and M.)
3203     - new initial fields and forcing fields (*.bin files)
3204     - new POLY3.COEFFS (for the next release one should switch to a full
3205       equation of state: JMD95P or MDJWF)
3206     - fixed several errors and redundancies in the data file
3207     - experiment uses looped cells
3208     - added matlab directory with diagnostic scripts for plotting of output
3209    
3210    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
3211     - read AIM physics parameters from a file (data.aimphys)
3212     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
3213    
3214    checkpoint46j_post
3215    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
3216    o move wVel computation at the end of the time step, in S/R integr_continuity
3217    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
3218    o update timeave pkg for wVel diagnostic.
3219    checkpoint46j_pre
3220    
3221    checkpoint46i_post
3222    o Clean up AIM package (and keep the results unchanged):
3223      include CPP_OPTION and use IMPLICT NONE in all routines ;
3224      declare all the variables _RL ; use _d 0 for all numerical constants.
3225      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
3226    
3227    checkpoint46h_post
3228    o cleaned up the use of rhoNil and rhoConst.
3229      - rhoNil should only appear in the LINEAR equation of state, everywhere
3230        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
3231        and the dynamical equations are all divided by rhoConst
3232    o introduced new parameter rhoConstFresh, a reference density of fresh
3233      water, to remove the fresh water flux's dependence on rhoNil. The default
3234      value is 999.8 kg/m^3
3235    o cleanup up external_forcing.F and external_forcing_surf.F
3236      - can now be used by both OCEANIC and OCEANICP
3237    checkpoint46h_pre
3238    
3239     Added code to convert surface volume flux (fresh water) into
3240     a mass flux when using P coordinates in the ocean (OCEANICP).
3241     Note: It assumes you have set rho0=rhoConst=density of fresh water.
3242    
3243    checkpoint46g_post
3244    o Include a new diagnostic variable phiHydLow for the ocean model
3245      - in z-coordinates, it is the bottom pressure anomaly
3246      - in p-coordinates, it is the sea surface elevation
3247      - in both cases, these variable have global drift, reflecting the mass
3248        drift in z-coordinates and the volume drift in p-coordinates
3249      - included time averaging for phiHydLow, be aware of the drift!
3250    o depth-dependent computation of Bo_surf for pressure coordinates
3251      in the ocean (buoyancyRelation='OCEANICP')
3252      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
3253        Theta, Salinity, and Pressure in the parameter list. This routine is
3254        presently contained in find_rho.F. This routine does not give the
3255        correct density for 'POLY3', which would be a z-dependent reference
3256        density.
3257    o cleaned up find_rho
3258      - removed obsolete 'eqn' from the parameter list.
3259    o added two new verification experiments: gop and goz
3260      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
3261    checkpoint46g_pre
3262    
3263    checkpoint46f_post
3264    o Enable tangent linear (forward mode) gradient checks:
3265      - extended active file handling to g_... files
3266      - added TANGENT_SIMULATION to theSimulationMode
3267      - extended grdchk package accordingly
3268    o added tangent linear setup in verification/carbon/code_ftl
3269    o added adjoint setup in verification/front_relax/code_ad
3270    
3271    checkpoint46e_post
3272    o Added new equation of state -> MDJWF
3273      - EOS of McDougall et al., 2002, JAOT, submitted
3274      - caveat: the equation of state is only valid for a smaller (more
3275        realistic?) range of values than JMD95P/Z and UNESCO
3276      - added masks to the calculation of pressure in store_pressure
3277      - added more check values for density in check_eos (ini_eos.F), some of
3278        the old check values are out of the range of the MDJWF-eos, so don't
3279        expect perfect matches for those
3280    checkpoint46e_pre
3281    
3282    checkpoint46d_post
3283    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
3284      'OCEANICP', also initialised field pressure correctly in ini_eos in the
3285      case of pressure coordinates. eosType='JMD95Z' in
3286      combination with buoyancyRelation='OCEANICP' now causes an error.
3287    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3288      in find_alpha/beta.
3289    checkpoint46d_pre
3290    
3291    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3292      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
3293    
3294    checkpoint46c_post
3295    o Changes necessary for ocean in p-coordinates
3296     -  Added new buoyancy relation = 'OCEANICP'
3297     -  Added new parameters = gravitySign (this used to be contained inside
3298        the factor dRdZ which I added when we first switched to R coordinates).
3299     X GM/Redi is not compatible (yet)
3300     X bottom drag and no-slip need to be debugged.
3301    checkpoint46c_pre
3302    
3303    checkpoint46b_post
3304    o Added new equation of state -> JMD95Z and JMD95P
3305      - EOS of Jackett and McDougall, 1995, JAOT
3306      - moved all EOS parameters into EOS.h
3307      - new routines ini_eos.F, store_pressure.F
3308    o Added UNESCO EOS, but not recommended because it requires
3309      in-situ temperature (see JMD95)
3310    o Modified formatting for knudsen2.f in utils/knudsen2 and added
3311      unesco.f to be used with POLY3
3312    checkpoint46b_pre
3313    
3314    checkpoint46a_post
3315    o Added (atmospheric) pressure loading
3316      - new field in FFIELDS.h, etc...
3317      - new cpp flag ATMOSPHERIC_LOADING
3318    o Changed hFacC to _hFacC in calc_phi_hyd.F
3319    o Added SHORTWAVE_HEATING to some files for consistency
3320    checkpoint46a_pre
3321    
3322    checkpoint46
3323    further merges from release1_p5
3324    o new ctrl package
3325      - adopted from ECCO environment to enable optimization
3326      - added Eliassen Palm fluxes to controls
3327    o added Eliassen Palm flux controls to gradient check package
3328    o cost package
3329      - Compatible with new ctrl package
3330      - added Eliassen Palm cost hooks
3331      - modif's of existing cost functions
3332    o Adjoint-related bug fixes in kpp:
3333      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
3334      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
3335    o autodiff package
3336      - flow directives:
3337        + new for S/R do_the_model_io
3338        + enhanced for S/R checkpoint
3339        + new gmredi.flow
3340      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
3341        disable adcommon.h/g_common.h by default.
3342      - fixed problem for adjoint of global_max
3343    o modified verification/carbon/
3344    o New setup for adjoint of global_ocean
3345    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
3346    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
3347    o incorporated hooks for sponge layer code (external_forcing.F)
3348    
3349    checkpoint45d_post
3350    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
3351  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
3352    (affects plume_on_slope "cg2d" output)    (affects plume_on_slope "cg2d" output)
3353    o add new parameter deltaTfreesurf for free-surface time stepping
3354    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
3355  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
3356  o change phiMin in exp1 (to agree with documentation)  o change phiMin in exp1 (to agree with documentation)
3357  o add new flags:  o add new flags:

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