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revision 1.38 by heimbach, Tue Apr 10 22:35:24 2001 UTC revision 1.961 by mlosch, Mon Feb 25 20:59:01 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 add a flag writePickupAtEnd (default=true) to be able to suppress
8      writing a pickup at the last timestep
9    o pkg/profiles:
10      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
11      (for "less than 32 characters name" compiler requirement)
12    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
13      conditions that have a different sampling frequency than S/T/U/V obcs
14    o pkg/diagnostics (stats-diags):
15      - fix global Min/Max in case 1 processor get only empty tiles
16    o genmake2: replace (4 times)
17         make genmake_tc_1.o >> genmake_warnings 2>&1
18      with
19         COMM="$CC $CFLAGS -c genmake_tc_1.c"
20         echo $COMM >> genmake_warnings
21         $COMM >> genmake_warnings 2>&1
22      to make genmake2 always see the value of CC as specified in the optfile.
23    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
24      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
25      - modify verification advect_cs test to test SOM-advection on CS-grid.
26    o pkg/ctrl:
27      - Rewrite of ctrl_map_ini_ecco.F,
28        introducing a generic routine (ctrl_map_ini_gen.F).
29      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
30    
31    checkpoint59n
32    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
33      number in dedicate array "hdiag":
34      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
35        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
36      - many small changes (integer format) for large number of diagnostics
37      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
38        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
39    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
40      usingSphericalGrid, this allows to define the rotated grid coordinates
41      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
42      geographical coordinates according to the inverse of the rotation defined
43      by the Euler angles, so that Coriolis parameter and online-interpolation by
44      exf works with the geographical coordinates on XC/YC/XG/YG.
45      Naturally, this feature does not work with all packages, so some
46      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
47      profiles), because there the coordinates are assumed to be regular
48      spherical grid coordinates.
49    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
50      - introduce isopycnal diffusion coefficient control.
51    o tools/adjoint_options:
52      - additional control vector components.
53    o pkg/mnc: have mnc create marginally meaning full coordinate variables
54      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
55    o pkg/mypackage:
56      - add example of read/write pickup for state-var ;
57      - add entry points to the main code for state-vars diags & write-pickup.
58    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
59      transitions for useExfYearlyFields
60      - add new subroutine that determines the file to read from for
61        use*YearlyFields = .TRUE. and .FALSE.
62      - add a verification experiment to global_with_exf that tests
63        useExfYearlyFields with USE_EXF_INTERPOLATION defined
64    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
65      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
66      subroutines (which could be generated from a template, because they are
67      almost identical), for now they are included in obcs_prescribe_read.F for
68      simplicity
69    o pkg/exf:
70      - add a little more diagnostic to exf_interp_read (in analogy to
71        mds_read_field, can be turned off with debugLevel < debugLevA=1)
72      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
73        ugly but fast by unrolling short inner loops, inserting a unroll=8
74        directive in routine lagran, and splitting a loop and making do while the
75        outermost loop (the latter requires the intoduction of index arrays)
76    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
77    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
78      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
79    o verification/seaice_obcs: updated for restart test and latest options
80    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
81      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
82      for now this is only available for the C-grid code and also within
83      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
84    
85    checkpoint59m
86    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
87      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
88    o gad_som : fix flux output (& diagnostics) to have same units as other  
89      advection scheme fluxes (was previously multiplied by deltaT).  
90    o added verification/seaice_obcs both to test seaice open boundaries
91      and to provide an example matlab scrpt for generating them
92    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
93    o pkg/salt_plume: clean up salt_plume_frac.F to
94      remove redundancy in PlumeMethod 1 and 4
95    o pkg/kpp: added saltplume diagnostics
96    o pkg/obcs and pkg/seaice:
97      - do not set uice and vice to zero when OB*icefile are unspecified
98      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
99      - moved seaice tracer obcs after call to seaice_growth
100    o pkg/salt_plume: added various options for salt plume depth
101      criterion and for vertical distribution of the salt
102    
103    checkpoint59l
104    o pkg/ptracers: new version of ptracers pickup:
105      read meta file and write only fields which are needed to restart.
106      ( same logic as main pickup file ; also using pickupStrictlyMatch )
107    o pkg/seaice:
108      - add timescale for melting due to warm mixed layer as a means of
109        setting SEAICE_availHeatFrac more conveniently
110      - add a CPP-flag/runtime parameter check for flooding algorithm
111      - reformulated availHeat in seaice_growth.F to be independent of AREA
112    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
113      unit changes
114    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
115    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
116      SX vector computer.
117    o pkg/seaice:
118      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
119        seaice forcing fields can now be read only through pkg/exf
120      - removed some unused halos
121    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
122    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
123      or U/VICE from U/VWIND before computing U/VSTRESS
124    
125    checkpoint59k
126    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
127      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
128    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
129      all experiments pass when compile with un-initialised var. checking option.
130    o added pkg/salt_plume
131    o script to test restart (for now, in MITgcm_contrib/jmc_script)
132    o pkg/seaice: new read/write pickup version.
133      read meta file and write only fields which are needed to restart.
134      ( same logic as main pickup file ; also using pickupStrictlyMatch )
135    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
136    o lab_sea.hb87: modify the domain & update output.hb87.txt :
137      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
138      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
139      process. Fixed here by closing the domain at the Northern boundary.
140    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
141    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
142      a set of consecutive levels in/from a 3-D array.
143    o pkg/ptracers:
144      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
145      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
146    
147    checkpoint59j
148    o in pkgs: dic, obcs, offline, rbcs:
149      standard way to compute coeff. for time interpolation between 2 time reccords
150      which retains full precision (& make results less dependent on compiler).
151      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
152    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
153      packages instead of reading ice cover and wind speed separately
154    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
155     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
156      to allow to compile customized code before the update)
157    o cleaning-up:
158      - fix CPP instruction syntax in pkg/obcs
159      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
160        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
161      - fix some threads issue in IO parts.
162    o pkg/dic:
163      - add tons of "_d 0" (--> much better testreports !)
164       and then update outputs of tutorial_global_oce_biogeo
165    o pkg/mom_fluxform:
166      add a special version of momentum advection intended to conserve momentum
167      next to a bathymetry step or a coastline edge. (default = off = #undef)
168    o new read/write pickup version:
169      - for now, only implemented for main (mdsio) pickup file.
170      - write out only what is needed to restart; merge pickup_nh , pickup_ph
171        and main pickup together.
172      - read meta file; read only what is needed to restart; stop if a field
173        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
174        if it make sense (even if the restart is not perfect).
175      - if no meta file, assume that pickup to read corresponds exactly to
176        a pickup that would currently be written.
177      - read pickup written in the old format (until checkpoint59i) if it
178        recognizes an old meta file (no field-list).
179      - add a meta file in exp. which starts from a pickup: 2 cases:
180        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
181         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
182        b) a meta file describing the content of the associated pickup file
183         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
184    o pkg/mdsio & pkg/rw:
185      - new routine to read a meta file ; new set of routine to read
186        Multiple-fields file (with meta file).
187    o added open boundary conditions capability for seaice
188        HSNOW, HSALT, UICE, and VICE
189    
190    checkpoint59i
191    o adjoint:
192      * fix multiDimAdvection adjoint
193        (partial recomputation problem by TAF for fVerT(:,:,kDown)
194        and comlev1 size definition (maxpass vs. max. number of tracers)
195      * verification/global_ocean.90x45x15 adjoint now tests
196        NLFS and multiDimAdvection using DST3 (=30)
197      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
198    o pkg/kpp: add "_d 0" to real constant (if missing);
199      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
200      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
201    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
202      for internal parameters related to restart process (formerly from PARAMS.h)
203      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
204    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
205      as argument. (only atm2d & obcs write_pickup have not yet been updated)
206    o pkg/monitor:
207      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
208      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
209      - account for deep Atmosphere factor and density factor (anelastic)
210    o added open boundary conditions capability for seaice HEFF and AREA
211    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
212      thermodynamics
213      - requires a little reorganization, which affects the testreport results
214        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
215        so that now the conservative form is tested
216      - add a few comments
217    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
218    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
219    o add new diagnostics to seaice: advective, diffusive fluxes (only for
220      multidim-advection, for scheme 2 they are not filled) and transports,
221      thermodynamic growth rates
222    o change units of EmPmR (inside the code, + within coupling interface)
223      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
224      Affects results @ truncation level (cg2d match) and update output of
225       experiments: lab_sea(6), global_ocean.90x40x15(10),
226      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
227      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
228      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
229      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
230    
231    checkpoint59h
232    o pkg/exf:
233      - improve vectorization by moving if-statement out of loops in
234        exf_mapfields, exf_radiation
235      - exf_bulkformulae.F: introduce 2D fields and vectorize code
236    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
237    o testreport:
238      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
239        monitor & update offline_exf_seaice exp. output.
240      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
241    o pkg/seaice:
242      - bug fix in the evp solver: boundary conditions were affected be
243        masking of zMax/zMin (changes results)
244      - minor bug fix in boundary conditions in seaice_calc_strainrates
245        (changes results for no_slip)
246      - seaice_lsr.F: make interpolation of eta dependent on boundaries
247      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
248      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
249        stress formulation and no-slip boundary conditions
250    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
251      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
252    o pkg/seaice: a first HSALT time stepping equation has been checked in
253    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
254      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
255      without requiring DO-IF statements
256    o pkg/thsice:
257      use continuous power-law function for partition of energy between lateral
258      melting/freezing and thinning/thickening ; old code using step function
259      still available with #undef THSICE_FRACEN_POWERLAW
260      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
261    o testreport: change AD testing : check against results/output_adm.txt
262      using same scripts as for forward test.
263    
264    checkpoint59g
265    o adjoint testing: in preparation for changing testreport:
266      - output format: cost and grad written on separated lines
267      - ad output results in directory "results" (instead of "results_ad")
268    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
269    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
270    o pkg/ecco: allow user defined cost function contributions
271    o testreport:
272      Allow to choose (per experiment) the list of tested output variables
273       and the main variable (used to issue a pass/FAIL ) ;
274      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
275      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
276      Also modify printing of summary:
277       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
278       b) echo the list of tested variables in the individual summary.txt of
279          each experiment.
280    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
281      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
282      (but still depend on the tile decompostion of the domain).
283    o pkg/seaice: change a discretization detail to make the B-grid code
284      "more symmetric". This change is likely to remove all "ridges/leads" that
285      where quasi-aligned with the grid in B-grid solutions. It may also be
286      the solution to the stress coupling issues with the B-grid.
287    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
288      remove .cvsignore from input dir. (since testreport no longer run here).
289    o pkg/thsice:
290     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
291     - fix reshaping of sea-ice just after advection:
292       melt all the ice only if ice-volume is too small.
293     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
294       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
295     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
296    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
297      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
298    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
299      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
300      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
301      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
302      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
303      -> update output.txt
304    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
305     this affects truncation error: -> update output.txt of exp:
306      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
307      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
308    
309    checkpoint59f
310    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
311    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
312      a bounded range (in forward mode)
313    o pkg/ecco, ctrl, autodiff and mom_common:
314     internal parameter controls, completements of implementations
315    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
316    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
317      (not seem any difference in testing results).
318    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
319       at face corners.
320    o pkg/generic_advdiff:
321     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
322      loop range indices for computing vertical advection tendency
323      and do the calculation in the interior only (no overlap) ;
324      for now, only implemented for SOM advection (to save CPU time).
325     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
326    o exch2 adjoint
327      First set of changes:
328      - add exch2 hand-written adjoint templates
329      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
330        This will require cleanup in pkg/autodiff/*.F
331        (changed routines currently kept separate in verif. code/)
332      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
333        that used to hide exch2 or cubed-sphere specific code
334        (commented via 'cph-exch2')
335    o pkg/seaice
336      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
337    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
338       output of global_ocean.cs32x15.thsice .
339    
340    checkpoint59e
341    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
342      for B-grid vector (not yet tested) and C-grid vector (<- only used
343      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
344    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
345      (#ifdef ALLOW_SALT_PLUME)
346    o gather_2d/scatter_2d: removed halo regions
347    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
348      scheme and the corresponding test case (under front_relax dir). For now,
349      only available with Skew-flux form and not yet tested in realistic set-up.
350      adjoint: store directives updated, but gradient checks deteriorated,
351      so maybe GM/Redi adjoint is now broken.
352    o seaice adjoint
353      * add AREA, HEFF, HSNOW as control variable
354        (should not change lab_sea results)
355      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
356    o pkg/seaice:
357      * added computation of saltFlux in seaice_growth;
358        For time being, sea ice salinity is assumed constant
359        contribution of snow flooding to freshening of sea ice is neglected.
360        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
361        defaults to 0.0 in order to maintain backward compatibility.
362        Typical values for SEAICE_salinity are 4 to 10 g/kg.
363      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
364      * added SEAICE_availHeatFrac, which specifies fraction of surface level
365        heat content used to melt or grow ice
366      * commented out cap of HICE: it helps keep ice thinner
367      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
368      * applied OBCS T/S mask to HEFFM sea ice mask
369    
370    checkpoint59d
371    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
372     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
373     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
374    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
375     and change default value of parameter "GM_Small_Number";
376     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
377       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
378       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
379    o pkg/ecco: cost function when applying pkg/smooth to controls
380    o pkg/ctrl: add forcingPrecond run time parameter
381    o pkg/seaice:
382     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
383     - fix bug in metric terms of u-equation in LSR solver (implicit part),
384       changes verification/lab_sea
385     - rearrange implicit part of u-equation in LSR solver to make it easier to
386       read, understand, and debug. This causes changes at the truncation level.
387     - fix (serious) bug in the boundary conditions (sign error in the implicit
388       part) of the LSR solver. Changes all LSR results.
389     - fixed problem with HSNOW initialization to avoid thick snow when AREA
390       is initilized with small values - does not change lab_sea results.
391     - added HsnowFile initialization capability
392    o pkg/smooth: addition to model/src and pkg/ctrl so allow
393     initialization of pkg/smooth and application to control vector
394    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
395    o dependencies: pkg/profiles requires pkg/cal
396    o pkg/profiles:
397     - added option ALLOW_PROFILES_GENERICGRID
398         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
399         that interpolation information (grid points and coefficients) is provided
400         within the netcdf input files.
401         -> sample matlab scripts can be found in MITgcm_contrib/gael
402         that allow you to prepare netcdf input files.
403     - also modified: cleaner include statements, cleaner error print statements,
404       cleaner stops when error, and more tests of the netcdf input files consistency.
405    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
406    o pkg/seaice:
407     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
408       requires a new routine: seaice_diagnostics_fill.F
409     - make sure that seaice does not move if not forced (pressure replacement
410       method, Hibler and Ip, 1995), changes results
411     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
412     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
413       It is turned off by default (=-1.), because it changes the results.
414     - make it possible to read AREA from a file, too.
415    
416    checkpoint59c
417    o add S/R and diagnostics for oceanic mixed-layer depth
418    o move GMRedi call after all vertical mixing schemes (including KPP)
419    o pkg/thsice:
420     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
421      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
422    o pkg/obcs:
423     - bug fix for balance code
424    o pkg/seaice:
425      - allow values of SEAICE_elasticParm > 1
426      - add new parameter SEAICE_evpTauRelax as an alternative
427        to SEAICE_elasticParm
428      - make lsr boundary conditions free slip (by default), changes result
429      - add code for no slip boundary conditions for lsr
430      - set minimum of zeta to zero (and not 4e8) (changes results)
431      - add a cap on AREA after advecting AREA if seaice_growth is not called
432    o change calculation of Visbeck K:
433      - no longer depend on tapering scheme; instead, compute slope (limited
434        by GM_maxSlope). this is equivalent to what was comuted before with
435        clipping or linear tappering.
436      - fix vertical averaging (wrong by 1/2 level)
437      - leave the old version (but will not be maintained) within
438        #ifdef OLD_VISBECK_CALC / #endif
439      - update output of exp. ideal_2D_oce
440    o change error catch in calc_r_star to improve vectorization
441    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
442      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
443    o adjoint:
444      Re-organized adjoint checkpointing according to Matt Mazloff
445      (but with modifs/completions/cleanups)
446      Storing is now bundled into large arrays to optimized I/O
447      (and second step in cleanup of the_main_loop)
448    
449    checkpoint59b
450    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
451      - export/import (between ocean & coupler) fields needed for ocean DIC.
452    o pkg/seaice:
453      - get rid of three more exchanges seaice_calc_viscosities (required
454        different loop boundaries in seaice_lsr and seaice_ocean_stress)
455      - bug fix in seaice_ocean_stress (update of lab_sea required)
456      - reduce loop boundaries to necessary minimum also in seaice_evp
457      - go back to the old way of computing deltaC/Z as the adjoint likes that
458        better
459    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
460      passive tracer to an Age Tracer) + update output.txt
461    o pkg/exf:
462      - implement A-grid / C-grid selection for wind-stress input files.
463      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
464      for now, in exf_bulk_largeyeager04.F only :
465      - change implementation for case where windspeed + 2. components wind-stress
466        are read-in. AND use rhoConstFresh to convert evap.
467    o pkg/seaice:
468      - use correct EXCH_UV for wind-forcing (on A-grid).
469      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
470        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
471    o pkg/exf:
472      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
473      EXF_INTERPOLATION:
474      - merge global_with_exf/code version of exf_interp_read.F
475        to the main code ;
476      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
477        reading the file ; Important: This options needs to be defined to recover
478        previous code.
479        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
480      - no longer loose real*8 precision along the way when using exf_iprec=64.
481    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
482      - change discretisation of evp-solver in order to avoid another exchange
483        (changes lab_sea) and clean up a little
484      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
485        help the adjoint (this also changes the results slightly)
486      - add a few "_d 0" where they had been missing in seaice_evp.F
487      - cleaning up: remove unused seaice_calc_rhs.F
488    o pkg/exf: some cleaning-up:
489      - change various "constants" into runtime parameters
490      - cleaned-up Large&Yeager04 routine which should eventually
491        replace exf_bulkformulae.F (changed names of S/R and CPP)
492        and merged various ALLOW_ATM_WIND options
493     only used with thsice pkg (in thsice_get_exf.F):
494      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
495        which are used when useStabilityFct_overIce=TRUE (= the default)
496      - change default values of ice & snow emissivity and scale downward LW
497        by ice & snow emissivity.
498    o pkg/thsice:
499     fix few little problems, in thsice_calc_thickn.F:
500      - growth vertically (and not laterally) if iceFrac == iceMaskMax
501      - melt only laterally if hIce < hThinIce (as the comments say)
502      and in thsice_extend.F:
503      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
504      - start to form ice as soon as the minimum ice-volume is reachable.
505     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
506      and cpl_aim+ocn
507    o pkg/kpp
508     - move computation of surface related input fields to KPP into a new
509       subroutine kpp_forcing_surf.F
510     - remove wrong (within bi,bj loops) EXCH calls.
511     - little cleaning (add argument myThid in last position, cvs header ...)
512     - for now, fix conservation problem by exchanging KPPviscAz (may not
513       be the best fix)
514    o pkg/seaice
515     - check for inconsistent evp parameter/cpp-flag combination
516     - remove leftover errIO flat for obsolete name list error handling
517    o OpenAD
518     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
519    
520    checkpoint59a
521    o pkg/seaice: some parameter clarifications and a little bit of clean up
522    o pkg/thsice: rename run-time parameters:
523       himin       -> hIceMin
524       himin0      -> hThinIce
525       hihig       -> hThickIce
526       i0          -> i0swFrac
527       transCoef   -> bMeltCoef
528       frac_energy -> fracMelting
529      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
530       with default values (for now) that do not change the results.
531      remove old version of thsice vars advection in pkg/seaice.
532    o in FFIELDS.h:
533      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
534      - make pLoad & sIceLoad always available (but still only used if
535         ATMOSPHERIC_LOADING is #define).
536    o pkg/kpp: replaced _KPP_RL with _RL
537    o bug fixes for vertical diffusivity computations when both KPP and
538        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
539        are no longer updating the vertical diffusivity array
540        (passed as argument) but are (re-) setting those arrays.
541    o pkg/seaice: fix bug in evp solver, while doing that
542      - change (improve?) discretization of stress computations for both
543        cgrid-lsr and evp solver
544      - add a new routine to compute strain rates
545      - the above changes lab_sea results
546      - add no slip conditions for evp solver (off by default), lsr-version
547        may follow
548      - fix exchange for shear at Z-points (does not change lab_sea)
549      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
550        (to force the user to pick a time step since there is not "safe" way
551        of choosing it)
552      - add principal stress diagnostics
553      - rearrange fields for evp a little to avoid having to call a: too many
554        exchanges and b: exchanges for stress trensor components which we do
555        not have.
556      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
557        of evp, complete rewrite for lsr case (latter is does not yet work
558        in all cases)
559    o pkg/kpp: add code to have mixing in shelf ice caverns
560      - add myThid to all kpp routines (long overdue)
561    
562    checkpoint59
563    o pkg/exf:
564      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
565        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
566      - move exf header files from lower_case.h to UPPER_CASE.h ;
567        add missing cvs Header & Name
568      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
569      - add namelist param. selectStressGridPosition, exf_monFreq
570      - retire many _CLIM routines, and remove data.exf_clim
571        + params moved to data.exf
572        + climsst, climsss now handled by exf_set_gen, i.e.
573          climss?period=0 refers to constant field,
574          climss?period=-12 to monthly forcing
575      - split up namelists in data.exf
576    o pkg/seaice:
577      - remove seaice_exch and seaice_exch_uv
578      - remove superfluous exchange of theta
579      - add myThid to seaice_budget_ocean/ice
580      - add new interface for atmospheric wind forcing (C-grid only)
581        + new routine
582        + two new field (taux, tauy for stress over ice)
583        + removed one global field (DAIRN) for C-grid case only
584    o pkg/thsise
585      - 2nd set of modifs for thsice adjoint in conjunction with exf
586    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
587    
588    checkpoint58y_post
589    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
590      vertical diffusivity, similar to that in MOM4; turned on using
591      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
592      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
593    o Added capability for 3D specification of background vertical diffusion
594      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
595      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
596      "data" file that contains the 3D vertical diffusivity coefficients.
597    o ice dynamics (pkg/seaice) with thsice thermodynamics:
598      - add code within pkg thsice to advect & diffuse sea-ice fields
599      similar to (and will replace) what has been added in  seaice_advdiff.F,
600      but: - conserving Mass, Heat & Salt.
601           - better when using non-linear advection scheme (not yet fully tested)
602           - can also be used in atmospheric set-up (for now, only the diffusion).
603    
604    checkpoint58x_post
605    o IO option for global-file compact format:
606      - add options when generating topology (utils/exch2/matlab-topology-generator)
607      - add I/O capability (pkg/mdsio).
608      - adapt utils/matlab/rdmds.m to read this format.
609      for now long-line format not yet supported by pkg/mdsio (& exch2).
610    o shelfice: add a few diagnostics
611    
612    checkpoint58w_post
613    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
614      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
615      (and replace horiVertRatio in NH code).
616      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
617                         and tutorial_plume_on_slope (sensitive to truncation)
618    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
619      directly to drive seaice model (C-grid only)
620    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
621     - reintroduce computation of wind from stress,
622     - compute tau (in exf_bulkformulae.F) from windstress averaged to
623       mass points to avoid tau = 0
624     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
625    o rdmnc.m: make it work with "global" files created with gluemnc
626    o rdmnc.m : some improvements in dealing with singleton dimension
627      (tested on all testreport mnc output files).
628    o genmake2: disable pkg/profiles if netcdf test fails.
629    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
630    o move call to cal_readparms up to make calendar parameters/variable available
631      to all packages
632    
633    checkpoint58v_post
634    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
635      useDynP_inEos_Zc tested.
636    o pkg/exf: changes to properly interpolate/mask/scale initial fields
637    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
638      and portions thereof.  See read_cs.txt for description and examples.
639    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
640      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
641      following the great-circle arc between those 2 points.
642    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
643      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
644    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
645     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
646     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
647     - still needs work (not working with some options ; efficiency to improve)
648       and serious testing.
649     - use this scheme for temperature & salinity in 2 advection test exp.:
650       advect_xy & advect_xz, respectively.
651    
652    checkpoint58u_post
653    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
654    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
655    o testreport: add option "-skipdir" to skip some test.
656    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
657      momentum calculation.
658    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
659    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
660      remove checkpoint.F and the_correction_step.F (no longer used);
661      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
662    o add option (linFSConserveTr) to correct for tracer source/sink due to
663      Linear Free surface
664    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
665    o pkg/thsice: fix reading mnc-pickups
666    
667    checkpoint58t_post
668    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
669    o pkg/mdsio:
670     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
671       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
672       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
673     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
674     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
675       either MDS_READ_FIELD or MDS_WRITE_FIELD )
676     - new S/R (to replace MDSWRITEMETA), which allows to write more
677       informations (variable names, time ...) to meta files.
678     - modify rdmds.m to give back the meta file content.
679    o pkg/diagnostics: change vertical interpolation to be safer, and more
680       flexible (define p-levels to interpolate to in data.diagnostics);
681      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
682       diagnostic pointer.
683    o pkg/seaice: more cleaning up of seaice_growth, added many comments
684    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
685    o fix multi-category seaice:
686     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
687       SEAICE_MULTICATEGORY
688     - fix short wave heat flux
689    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
690       and allow to use EVP solver. Change forward lab_sea: test both EVP
691       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
692    o Initial check-in of lab_sea adjoint
693      (very similar to natl_box_adjoint/code_seaice)
694      * used C-grid and EVP solver
695      * used KPP, GM/Redi
696      * uses inAdExact=.TRUE.
697      * gradient checks fail for both ADM and TLM
698        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
699        f.d. gradients actually seem more problematic than ADM, TLM gradients;
700        issue is related to forward mismatch between g77 an ifort
701    o pkg/seaice: overhaul of thermodynamics
702     - growth.F and groatb.F are replaced by new routine seaice_growth.F
703     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
704     - move a few global fields out of SEAICE.h into seaice_growth.F and
705       make them 2D (FICE/QNETO/ ...)
706     - remove FO (it is the same as QNETO)
707     - introduce a few local fields to avoid modifying external fields such
708       as atemp, etc.
709    
710    checkpoint58s_post
711    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
712      changed exf_set_gen.F so that
713        genperiod=0 means input file is one time-constant field and
714        genperiod=-12 means input file contains 12 monthly means
715    o CG2D: use pre-computed solver main-diagonal (stored in common block);
716      this affects truncation error ; generate new output file for exp. which
717      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
718        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
719        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
720        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
721        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
722        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
723    o start implementation of deep-atmosphere and anelastic formulation
724    o verification: remove 2nd copy of input files and use script "prepare_run"
725      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
726    o mom_common/vecinv/fluxform: fix a few initialisation isssues
727    o profiles: fix for multithreaded case
728    
729    o diagnostics: rename few diags:
730      s/'PRESSURE'/'RCENTER '/g
731      s/'TICE    '/'oceFreez'/g
732      s/'TAUX    '/'oceTAUX '/g
733      s/'TAUY    '/'oceTAUY '/g
734      s/'SWFLUX  '/'oceQsw  '/g
735      s/DIFx/DFxE/g
736      s/DIFy/DFyE/g
737      and add few ocean-forcing diagnostics:
738      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
739    o modifications to pkg/seaice/growth.F and budget.F, which change results of
740      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
741      as actual snow thickness.  It now refers everywhere to effective snow
742      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
743    
744    checkpoint58r_post
745    o modifications to pkg/seaice/growth.F, which change results of
746      lab_sea experiment: fixes pertain to melting snow over open water, to
747      masking EVAP under sea ice, and to using the correct AREA variable for
748      computations of EVAP, PRECIP, HSNOW, and GHEFF
749    o add ability to read bathy, salt, and theta using MNC (off by def)
750    o add flooding algorithm and advection of HSNOW for pkg/seaice;
751      both are turned off by default and do no change any results
752    o seaice advection with pkg/thsice: a step toward the use of non-linear
753      advection scheme, but #ifdef or commented out for now (requires more EXCH).
754    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
755      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
756      in natl_box (affects results @ truncation level: update output.txt)
757    o multi-threading and IO:
758      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
759      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
760        (needed to work with SingleCpuIO): tested in all verif. exp.
761    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
762      affects the results (but none of the verification test uses this scheme).
763    o Adding some pkg/diagnostics capability to pkg/seaice
764      (will certainly be subject to changes)
765    o ctrl: adding new control variables:
766      lwflux, lwdown, evap, snowprecip, apressure, runoff
767    
768    checkpoint58q_post
769    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
770      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
771      high_res_cube configuration by 4% on Columbia.
772    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
773      add (in global_with_exf/code) a version of EXF_INTERP_READ without
774      dynamical allocation (seems to work in multi-threaded).
775    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
776      single CPU io) so that TAF does not have to see EESUPPORT.h
777    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
778    
779    checkpoint58p_post
780    o obcs: stop if obcs is used with useCDscheme = .true.
781    o shelfice:
782     - fix a sign error so that no slip at shelfice interface works
783     - remove stop for combination non-hydrostatic code and shelfice. That does
784       not mean, that the results are correct, but at least they are numerically
785       stable
786    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
787    o added adjoint exch routined for all exch*3d* routines
788      and updated flow directives
789    
790    checkpoint58o_post
791    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
792      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
793    o change controling S/R for writing pickup file (new S/R do_write_pickup)
794      and clean-up reading/writing of pickup files.
795    o fix local version of read/write pickup (NH part) in rotating_tank/code
796    o simplify EXCH interface:
797     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
798     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
799    o added the regrid package
800    o shelfice:
801     - add a simple boundary layer scheme to reduce noise
802     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
803    
804    checkpoint58n_post
805    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
806       local variable (not in common block).
807    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
808      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
809      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
810        to work with SingleCpuIO.
811    o add "_d 0" to real constant of pkg/cfc subroutines ;
812       update exp. cfc_exemple & tutorial_cfc_offline output files.
813    o multi-threading and IO:
814      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
815        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
816      - barrier before and after reading.
817      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
818      - avoid using MDS_WRITELOCAL for LAND pkg output.
819      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
820        common-block variables ; Allows multi-threading with master-thread IO.
821    o change default MAX_NO_THREADS from 32 to 4 ;
822      and stop cleanly when MAX_NO_THREADS is too small.
823    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
824    
825    checkpoint58m_post
826    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
827       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
828    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
829       keep global_ocean.90x40x15 (for AD testing) with former secondary test
830       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
831    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
832        add MITgcm_tutorials (= code + all the tutorials)
833    o ecco, option to compute cost for total ssh (mean+anom)
834    o consistent with addition of ptracer and ssh in pkg/profiles
835    o profiles: adding ptracer and ssh
836    o testreport: change multi-test output-file name
837      (from output.txt.{name} to output.{name}.txt)
838    o profiles: now ok for mutli-tiles case
839    o seaice: add 4 parameters for different advection schemes for area,
840      (effective) seaice thickness, enthalphy, and snow height. Their default
841      is the standard parameter SEAICEadvScheme
842    o calc_gw:
843     - add cosFacU in zonal viscous flux (harmonic.visc.).
844     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
845       of tutorial_plume_on_slope.
846    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
847    o calc_gw: true flux-form, account for horizontal grid spacing.
848      update rotating_tank results, but not plume_on_slope (affected at
849      truncation level, 11 digits).
850    
851    checkpoint58l_post
852    o calc_gw:
853     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
854     - remove side-drag for now (need to fix it); update plume_on_slope results.
855     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
856    o commit code to make SST/SSS weights spatially variable
857      (based on either variable in-situ or variable initial T/S weights)
858    o pkg/ecco:
859      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
860        now based on horizontally varying weights wthetaLev, wsaltLev
861      * cost_averagesflags now returns year indices in addition to day, month
862      * sflux balance is performed on annual basis
863        (sflxumm, sfluxmm2, bal_sfluxmm)
864      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
865        including separate counting and multipliers
866    o pkg/rbcs
867      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
868    
869    checkpoint58k_post
870    o testreport:
871     - always build in dir. "build" (if not there, mkdir build instead of building
872       & running in input)
873     - run in dir run (if it exists), in build otherwise.
874     - call prepare_run (if input/prepare_run exists)
875     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
876    o pkg/exf modifications to interpolation and rotation routines for more
877       reasonable treatment of North Pole singularity: for tracers North Pole
878       value is set to northernmost zonal-mean value, for zonal velocity it is
879       set to zero, and for meridional velocity it is set to northernmost value.
880    o pkg/exf/exf_check_range.F
881     - add tile index to diagnostics and move stop statement to the very
882       end of the routine.
883    o pkg/diagnostics: (diagnostics_main_init.F)
884      define title of isomorphic variables according to the current config.
885    o pkg/thsice with pkg/seaice dynamics:
886    - fix domain of computation (interior only, required for exf) and do exchanges
887    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
888    o towards a standard way of dealing with multi-threading in MONITOR
889      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
890    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
891       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
892    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
893    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
894    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
895       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
896    o tracer advection:
897     - clean-up and simplify calc_common_factors.F
898     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
899       advection subroutine (but still not used within DST advection S/R)
900    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
901    
902    checkpoint58j_post
903    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
904      from file (collects calls previously in FORWARD_STEP)
905    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
906    o adjoint store dir. adjusted accordingly
907    o genmake2
908      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
909    
910    checkpoint58i_post
911    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
912      on wind stress (SEAICEstressFactor defaults to 1.)
913    o Total number of Timers is finite (<=40): comment out 2 non-essential one
914      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
915    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
916      on CS-grid: no longer loosing mass.
917    o exf & curvilinear-grid: no longer modify longitude xC & xG.
918    o pkg/ggl90: fix sloppy output and fix a bug
919    o pkg/seaice: added SEAICEuseEVPpickup parameter
920      - Set to false in order to start EVP solver with
921        non-EVP pickup files when using SEAICEuseEVP
922      - fix sign error in diffusion in seaice_calc_rhs
923    
924    checkpoint58h_post
925    * Modifications for bottom topography control
926      o replace hFacC by _hFacC at various places
927      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
928      o add non-self-adjoint cg2d_nsa
929      o update autodiff support routines
930      o re-initialise hfac after ctrl_depth_ini
931      o works for 5x5 box, doesnt work for global_ocean.90x40x15
932    * Adding verification for 5x5 box (4-layer) bottom topography control
933    
934    checkpoint58g_post
935    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
936       used for mean seasonal cycle, mean diurnal cycle); add an example
937       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
938    o pkg/ggl90:
939      - add parameter (minimum surface kinetic energy)
940      - fix bug (avoiding division by zero)
941    o couple pkg/thsice to pkg/seaice:
942      - modify advection in seaice to accomodate new scalar fields to be advected
943      - only muliDimAdection scheme work with seaice/thsice
944      - mapping of thsice-variables to seaice-variables, back and forth
945      - does not break the verification experiments, but does not give the
946        desired results either
947    o pkg/seaice
948      - make (default) second order advection a bit less confusing?
949    
950    checkpoint58f_post
951    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
952      to pkg/seaice):
953      - new routines thsice_map_exf and thsice_get_exf provide the interface
954      - add an additional formal parameter to thsice_solve4temp
955    o pkg/exf:
956      - add new fields wspeed, snowprecip (to be able to couple to thsice)
957      - correct Stefan-Boltzmann constant
958      - new parameter for longwave surface emittance
959      - separate some stuff from exf_bulkformulae into new routines  
960        exf_radiation, exf_wind
961      - add new parameters and constants: longwave emissivity for ocean, ice
962        and snow, evaporation parameters over ice
963      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
964        either wind from stress or stress from wind
965    o pkg/thSIce:
966    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
967    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
968       and THSICE_CALC_THICKN
969    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
970    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
971      to make debugging easier.
972    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
973    o pkg/bulk_force:
974      - clean-up comments and parameters ;
975      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
976    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
977      generate new output for test-experiment: aim.5l_cs.thSI
978    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
979      testreport accordingly
980    
981    checkpoint58e_post
982    o SEAICE_CGRID adjoint done
983    o R_STAR adjoint implemented.
984      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
985      * need to sort out init. of h0facc, etc.
986    o Make pkg/profile fully independent of ecco,cost, etc. stuff
987      to be able to use it in pure forward.
988    
989    checkpoint58d_post
990    o upgrade simple test-experiment to tutorial example:
991     step.1: duplicate the experiment and (step.2) will remove the old copy.
992      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
993      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
994      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
995      tutorial_global_oce_biogeo    <- copy of dic_example
996      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
997      tutorial_plume_on_slope       <- copy of plume_on_slope
998      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
999      tutorial_global_oce_optim     <- empty for now (David ?)
1000      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1001     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1002    o correct a sign problem in cost_scat.F
1003    o obcs and ptracers: fix boundary conditions for advections schemes
1004      with larger stencil
1005    o thsice adjoint: start
1006    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1007      completeness
1008    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1009      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1010    o ptracers adjoint:
1011      * avoid extensive recomputatations
1012      * fix missing re-init. of gptr (missed by TAF)
1013    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1014      me to turn off the excessive output to STDOUT that this package produces
1015    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1016      and add those terms in Vector-Invariant formulation.
1017    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1018      if the control period (xx_hfluxperiod etc) is 0
1019    o in profiles pkg, clean routines and fix details
1020    o in ecco pkg, reading ssh data:
1021      fix problem in case the model does not start at iter0=0
1022    o fix mnc-pickup/restart for ptracers
1023    o new package prifiles:
1024      code to compute profile-based cost by Gael Forget
1025      (modifs in ecco, ctrl, autodiff)
1026    o Benign bug fix in initialization (spotted by M. Mazloff) of
1027      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1028    
1029    checkpoint58c_post
1030    o adjoint: finish NLFS adjoint and provide reference output in
1031      verification/global_ocean.90x40x15/results_ad_nlfs
1032    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1033      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1034      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1035      with SEAICE_CGRID defined.
1036    o move calendarDumps from "data" to "data.cal" and clean-up the code
1037      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1038    o add useEXF & useCAL flags (for now, set in hard-coded way)
1039    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1040      (were missing in NH mode, and wrong in quasihydrostatic mode).
1041      waiting for Chris updated version of calc_gw to add those CALLs.
1042    o fix bug in quasihydrostatic S/R ;
1043      add a test for this option: global_ocean.90x40x15.qshyd
1044    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1045      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1046    o add on/off flag useOffLine for package OFFLINE
1047    o seaice:
1048      - modify advection so that it works also on the C-grid
1049      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1050        problem in multi-tile runs with C-grid
1051      - add flags for clipping ice velocities and/or masking solver forcing
1052      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1053        C-grid solver
1054      - added a few comments to seaice_diffusion.F
1055      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1056        are now exclusive)
1057      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1058        required re-ordering the code a little:
1059       + make DAIRN global variable (defined in SEAICE)
1060       + move computation of the viscosities eta and zeta into a new separate
1061         routine (because I need to recompute them in seaice_ocean_stress.F)
1062    
1063    checkpoint58b_post
1064    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1065      update output.txt of exp. aim.5l_cs.thSI
1066    o various mnc cleanups and improvements:
1067      + shrink lookup tables by factor of ~4
1068      + better error reporting when running out of lookup space
1069      + able to handle longer path/file names (up to 500 chars)
1070    o adjoint:
1071      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1072      - TBD: "hidden" mom_vecinv recomp. in dynamics
1073    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1074     (allow to differentiate between forcing components using new integer flags:
1075      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1076     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1077    o ecco
1078      - enable trend removal from SSH anomaly obs.
1079    o adjoint
1080      - a fix for PmEpR when #undef EXACT_CONSERV
1081      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1082      - try to fix "hidden" recomp. in forward_step for NLFS
1083        (NLFS seems broken sometimes after I checked it in)
1084    o seaice:
1085     - add c-grid version of the dynamic solver:
1086       + three new routines that are the c-grid substitute lsr, dynsolver
1087         and ostres
1088       + put a few fields that were local to dynsolver into global common
1089         blocks, so that I can move the computation of stresses etc into
1090         seaice_lsr (saves coding but may break the adjoint).
1091     - replace more hardwired parameters by runtime parameters
1092     - add ice masks that mask the rhs of the implicit solvers where there
1093       is no ice (commented out in seaice_dynsolver, because i am not sure
1094       if this works properly), eventually this should replace the clipping
1095       of ice velocities in seaice_dynsolver to +/-40cm/s.
1096    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1097      include it only where its needed
1098    o move balancing of fluxes before the call of external_forcing_surf
1099    o seaice:
1100      - correct units of turning angles (now they are really in degrees)
1101      - move computation of GWATX/Y out of main routine into dynsolver
1102      - initialize GWATX/Y in seaice_init
1103    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1104      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1105    o seaice: add runtime flags for turning angles (default to zero)
1106    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1107      and trend from exf forcing and ctrl control adjustments
1108    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1109      (since checkpoint57x_post)
1110    o change the default rotation period to 86164.s = the Earth rotation
1111    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1112      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1113    o seaice advection: add code for choosing between the default (2nd order
1114      central differences) and multiDim advection schemes provided by
1115      pkg/generic_advdiff
1116    o seaice:
1117      - removed all references to SEAICE_GRID.h fields from
1118        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1119        (cubed-sphere configuration will change a little)
1120      - grid computations in seaice_init are obsolete now.
1121      - cleaned up code a little so that is easier to read (hopefully).
1122      - added new (better?) discretizations of default advection and diffusion
1123        (turn on with SEAICEuseFluxForm)
1124      - replace 1 in 3d global fields by kSurface in growth.F
1125      
1126    checkpoint58a_post
1127    o seaice:
1128      - bug fix in advect.F
1129    o shelfice:
1130      - separate shelfice load anomaly from pload (breaks with time
1131        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1132        Its default is 0., but it may be computed more cleverly from (unknown)
1133        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1134        done offline. A good approximation of the pressure load anomaly is
1135        necessary to avoid large initial adjustment processes underneath
1136        deep-reaching shelfice.
1137      - small fix in ISOMIP shelfice_thermodynamics
1138      - add more sophisticated thermodynamics of Hellmer (1989), this is
1139        now the default
1140      - give a few constants more intuitive names
1141    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1142      if bulk formulae are used in long integration (especially EmPmR). Turn
1143      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1144      if balancePrintMean, the imbalance that is substracted is printed to
1145      STDOUT.
1146    o fix bug (typo) in obcs_apply_eta.F
1147    o add a new package shelfice which enables us to model the circulation
1148      underneath shelf-ice with draughts of hundreds of meters.
1149     - works
1150     - to do: + include improved thermodynamics
1151              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1152                instead of new field kTopC
1153              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1154                instead of new field R_shelfIce and new code in ini_depth.F
1155                and ini_mask_etc.F?
1156              + adjust vertical mixing schemes?
1157    o seaice pkg:
1158     - add a cpp-flag to include a simple formula for a salinity dependent
1159       freezing point of sea water at the surface
1160     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1161       meridional stresses are now different (and hopefully correct)
1162    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1163       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1164       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1165    o pkg/diagnostics: add options and parameters for regional-statistics
1166       diagnostics ; define regions by reading a region-mask from a file
1167       (might add other options later)
1168    o pkg/bulk_force:
1169     - add option and parameters to use AIM surface-flux formulae.
1170     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1171       others forcing fields (defined in PARM05, parameter file "data") are loaded
1172       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1173     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1174     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1175     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1176       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1177     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1178    
1179    checkpoint58
1180    o add "--embed-source" option to genmake2 which, when the supporting
1181      tools can be compiled (as determined by genmake2) will turn on the
1182      embed_files package which then embeds the entire MITgcm source code
1183      (*.[fFhc] + Makefile) used for the build within the executable
1184      - requested by CNH but off by default
1185      - adds a paltry <9MB to the mitgcmuv executable in most cases
1186      - only writes the output when useEMBEDSRC in eedata is true
1187    o clean up 3-dim. relaxation codes:
1188      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1189      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1190      * Thanks to Tom Haine for testing!
1191    
1192    checkpoint57z_post
1193    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1194      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1195    o fix the pickup behavior for obcs in combination with ptracers
1196    o fix a bug in ptracers_external_fields_load
1197    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1198      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1199    o transfered surface NH pressure to eta field (if exactConserv).
1200    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1201         and update lab_sea output.txt file.
1202    o completing 3-dim. relaxation code: additional term
1203         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1204      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1205      * At compile time, in "EXF_OPTIONS.h" set
1206          #define  ALLOW_CLIMTEMP_RELAXATION
1207          #define  ALLOW_CLIMSALT_RELAXATION
1208      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1209          tauThetaClimRelax3Dim = 15552000.0,
1210          tauSaltClimRelax3Dim  = 15552000.0,
1211      * 3 cases:
1212          1) Use a constant-in-time 3-dim. field
1213          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1214          3) Real-time relax. to time-evolving prescribed field
1215    o Adding Laplacian-type smoothness constraint on
1216      initial and boundary (forcing) controls (ic, bc)
1217      * enable at compile-time via
1218        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1219      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1220      * Absolute scale somewhat unclear so far
1221      * no area weighting was included since no other cost term does so far
1222    
1223    checkpoint57y_post
1224    First step for a NLFS adjoint
1225    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1226    o new init. routines for calc_r_star, calc_surf_dr
1227    o still need to deal with ini_masks_etc
1228    o testreport seemed happy
1229    checkpoint57y_pre
1230    
1231    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1232    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1233    o add new offset feature to offline pkg (plus minor cleanup)
1234    o cfc fixes for final year of integration
1235    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1236      be in GCHEM_OPTIONS).
1237    
1238    checkpoint57x_post
1239    o fix testreport Pb in multiple test experiment.
1240    o cleanup our namelist syntax in verification:
1241      - make it more F95 standards compliant (some work still needed)
1242      - allows the vast majority of our tests to work with gfortran
1243    o Non-Hydrostatic:
1244     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1245     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1246    o Allow to apply AB on T,S rather than on AB(gT,gS):
1247     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1248     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1249       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1250     - need a "clever" read_pickup to restart from the other AB formulation
1251    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1252    o remove some unused variables (reduces number of compiler warnings)
1253    o adjoint
1254      * Disable useVariableViscosity for adjoint for time being
1255        (there are a number of extensive recomputations)
1256      * Initialize certain variables needed for adjoint
1257    
1258    checkpoint57w_post
1259    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1260                 fix the singleCpuIO RS version of MDSWRITEFIELD
1261       and add a WARNING if using globalFiles=T with multi-processors.
1262    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1263      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1264    o tracer advection scheme:
1265      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1266       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1267       was not very convenient).
1268      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1269       (further tests needed for the implicit DST & Flux-Limiter schemes).
1270    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1271      and sRef for convenience, handy, when you want to initialize
1272      ptracers in a large domain with a constant non-zero value. Also,
1273      untangle ptracers_init.F a little.
1274    
1275    checkpoint57v_post
1276    o change dome exp. to use variable viscosity in side-drag terms.
1277    o remove all the files from the cfc_offline test since they are now
1278      incorporated into tutorial_cfc_offline which has been producing
1279      identical results for a few days of testing
1280    o add new parameter: sideDragFactor to enable half-slip-side BC
1281      and change side-drag S/R to use viscosity from mom_calc_visc
1282      (can switch back by setting sideDragFactor=0.); affects results at
1283      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1284       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1285    o vorticity & strain are now computed without masking, to account for
1286      no-slip-side BC in variable viscosity calculation ; mask is applied
1287      anyway later on, before computing advection/coriolis terms.
1288    o modify exp4 to test new obcs support for reading from external files
1289      and for passive tracers
1290    o fix behavior of ptracers_monitor when monitor output is written to a
1291      netcdf-file; still not independent of monitor.F (writes in the same
1292      file).
1293    o change default value of tRef (put a uniform, meaningful value for ocean
1294      & atmos) and initialize sRef (was missing, as Martin mentioned).
1295    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1296      to be proportional to enstrophy dissipation length.  Thus,
1297       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1298      This is now consistent with Smagorinsky and with the manual.
1299    
1300    checkpoint57u_post
1301    o OBCS and PTRACERS: add open boundary support for passive tracers
1302      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1303        OB-values from file; this is not different from the way theta and salinity
1304        are treated
1305      - however, Orlanski-radiation conditions are not supported, and the model
1306        will stop if you use pTracers and Orlanski at the same time.
1307      - beefed up the rountine obcs_external_fields_load: now only those open
1308        boundary values are overwritten with values from files for which there
1309        are really files, otherwise the OB-fields remain untouched. This makes
1310        it possible to use different OBs at different ends of the domain (as
1311        with EXF)
1312    o reduce number of exch calls in shap_filt (s2).
1313    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1314      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1315    
1316    checkpoint57t_post
1317    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1318    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1319      same truncation, independent of the face number: affects affects several
1320      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1321    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1322      note that biharmonic viscosity + no-slip was not tested in any experiment.
1323    o fix bug in non-linear free-surf side-drag ; generate new output for
1324      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1325    o make mnc honor the writeBinaryPrec flag for most kinds of output
1326    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1327    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1328      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1329    o add brackets in multi-terms sum to get same truncation, independent of
1330      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1331      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1332    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1333      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1334      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1335      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1336      Suggested values of viscosity parameters found in mom_calc_visc.
1337      Many new viscosity diagnostics available.
1338    
1339    checkpoint57s_post
1340    o Add clearing-house for viscosity calculations, mom_calc_visc and
1341      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1342      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1343      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1344      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1345      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1346      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1347      ViscAhStrain and viscAhTension are now retired.
1348    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1349    o In response to JMC's bug report, genmake2 now ignores any soft-links
1350      that it finds in the *current* directory when searching for files.
1351      Soft-links found in any other source directories will still work as
1352      they did before.
1353    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1354      a C routine to unlimit the stack size
1355    o mnc-ify pkg/aim snapshot vars
1356    o mnc-ify pkg/land as requested by Daniel
1357    o various changes to mnc including:
1358      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1359      - output can now be grouped so that all files within a group
1360          change the ITER portion of their names in lock-step together
1361      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1362          and works with both EXCH1 and EXCH2 (but needs more testing)
1363      - writing works for all verification test cases w/ g77 on Linux
1364    
1365    checkpoint57r_post
1366    o make MNC variable initialization happen earlier
1367    o add diagnostics for (almost) each term of the momentum Eq.
1368    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1369    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1370    o remove MINIMAL_TAVE_OUTPUT option ;
1371      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1372    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1373      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1374    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1375    o add time-dependent SST, SSS control
1376    o cost terms in ecco/ modularized (new cost_generic.F)
1377    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1378    o new infrastructure for seaice model vs. obs misfits in seaice/
1379      * driver from the_main_loop.F is seaice_cost_driver.F
1380      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1381      * gradient check in Exp. 6a of natl_box_adjoint/
1382    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1383      (see README file)
1384    
1385    checkpoint57q_post
1386    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1387    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1388      - bug was reported by Jean-Michel and Ian Fenty
1389    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1390      update exp. cpl_aim+ocn output.
1391    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1392      Needed for high-res. runs with large global files
1393      to be able to limit tapelev size
1394    o Changed some tests for adjoint:
1395      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1396      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1397      * global_ocean.90x40x15/ back to default 3-level checkpointing
1398    o Modifications to enable scripted COMMON to MODULE conversion
1399      * verification/OpenAD/code/ has necessary scripts and description;
1400      * converts, compiles and runs successfully;
1401    
1402    checkpoint57p_post
1403    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1404    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1405      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1406    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1407    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1408      (was already the case for dissipation with mom_vecinv,
1409       and also the case for grad.PhiHyd when staggered-timeStep)
1410      This will allow to put dissipation out-off the AB time-stepping.
1411     Unfortunately, affects truncation error. Update output of exp. that "fails"
1412      (cg2d matching number) and leave the others for later: front_relax(10),
1413      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1414      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1415    
1416    checkpoint57o_post
1417    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1418      (2) its ready to be documented during the 20050801 DocFest
1419    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1420      for ideal_2D_oce and lab_sea on linux_ia32_g77
1421    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1422      in global1x1_tot/code_seaice_adj to access indices 32, 33
1423      (worth another tag)
1424    
1425    checkpoint57n_post
1426    o adding precip control xx_precip 32
1427    o adding swflux control xx_swflux 33
1428    o Replacing 10 forcing penalty cost routines by 1 generic.
1429    o Implementing partitioning in time-mean and variable adjustment
1430      for atmos. state.
1431    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1432    o in natl_box_adjoint:
1433      * updated exp 1 to 10
1434        (but does not have time-mean vs. variable split results yet)
1435    o updated global1x1/*_seaice_adj/
1436      to incorporate latest changes
1437    o enable useSingleCpuIO for mdsio vector routines
1438      (applies in particular to tapelev I/O)
1439    o removed inefficient K-loop in all active_file*control*.F
1440    
1441    checkpoint57m_post
1442    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1443      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1444    o pkg/exch2: filling of face-corner halo regions is optional
1445      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1446    
1447    checkpoint57l_post
1448     tag before updating tutorials (pre-release-2)
1449    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1450       for output and interpolation of input fields onto model grid)
1451    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1452       Affects results of exp. rotating_tank ; update output.txt.
1453    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1454          and taking the square quantity and/or using a fraction-weight field.
1455    o fix aim_diagnostics_init.F mate numbers.
1456    o add mnc output capability to diagnostics/diagstat and update
1457      our cvsignore files for the ACSII output generated
1458    
1459    checkpoint57k_post
1460    o lab_sea now uses diagnostics package and provides a suite of
1461      new EXF diagnostics output.
1462    
1463    checkpoint57j_post
1464    o exf
1465      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1466        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1467        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1468      * extended diagnostics output
1469        - now includes all EXF variables
1470        - hs, hl moved to common block
1471        - separate S/R for diagnostics, called after ctrl vector is added
1472        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1473        - EXFqnet contains true Qnet (i.e. includes qsw)
1474      * updated verif. lab_sea, global_with_exf
1475      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1476        to ensure that diagnostics sees a true EXFqnet
1477    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1478    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1479      several times with different frequencies.
1480    o mnc-ify the thsice package as requested by Daniel Enderton
1481      - the monitor--MNC output needs work
1482      - many attributes need to be added (most are currently blank)
1483    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1484      - many attributes need to be added (most are currently blank)
1485    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1486    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1487    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1488      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1489         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1490    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1491     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1492    
1493    checkpoint57i_post
1494    o Diagnostics package was changed: diagnostic allocation is now deactivated
1495      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1496    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1497      add 1rst Order upwind vertical Shear.
1498    o add a quick fix for A/B checkpointing in OFFLINE mode
1499    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1500      end-run around the C/Fortran linking horror in eesup/src/timers.F
1501    o added pkg/runclock: allows user to terminate run based on wall clock
1502    o added non-hydrostatic scaling parameter: nh_am2
1503    o pkg/my82: futile attempt to make results compiler-independent by adding
1504      some "_d 0", etc. no effect.
1505    o for mnc output, fill the 'T' coordinate var with myTime and create a
1506      separate 'iter' variable for iteration count
1507    o pkg/diagnostics:
1508      add new capability: output of Global/Regional & per-level statistics ;
1509      tested against monitor output (including land & thSIce) on various exp.
1510    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1511    
1512    checkpoint57h_done
1513      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1514      data.diagnostics, data.gchem, data.ptracers) is done.
1515    
1516    o pkg/diagnostics: prepare for Global/Regional statistics.
1517      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1518    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1519      and rename it: DIFFERENT_MULTIPLE
1520    
1521    checkpoint57h_post
1522    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1523    o pkg/diagnostics: change output frequency, now in seconds (instead
1524      of Nb of iterations). This requires to change data.diagnostics.
1525    checkpoint57h_pre
1526    
1527    o in mnc, let the user create the output dir if both mnc_outdir_date
1528      and mnc_outdir_num are false
1529    o add fflags() to pkg/diagnostics which allows one to specify, on a
1530      per-file basis, the file precision [default behavior is unchanged]
1531    o added diagnostics to pkg/kpp, including computation of mixed layer
1532      depth based on a temperature/density criterion
1533    o updated verification/natl_box to test the new pkg/kpp diagnostics
1534    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1535    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1536    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1537      not mnc -- this mistake was found by JMC and is now corrected
1538    
1539    checkpoint57g_post
1540    o add Adams-Bashforth 3rd Order time stepping:
1541      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1542      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1543    checkpoint57g_pre
1544    
1545    o make lambda[Theta,Salt]ClimRelax spatially varying
1546      (default remains spatially uniform constant based on tau)
1547    o added new control variables
1548      * init. uVel, vVel, etanN
1549      * lambda[Theta,Salt]ClimRelax
1550    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1551      (suggested by G. Forget)
1552    
1553    checkpoint57f_post
1554    o add parameter "baseTime" = model base time = time at iteration zero
1555      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1556      account for baseTime shift
1557    o move Coriolis arrays from PARAMS.h to GRID.h
1558    checkpoint57f_pre
1559    
1560    o mnc-ifying the seaice package
1561    o introduced an alternative length scale calculation for use in the limiting
1562      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1563    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1564    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1565      as well as grad(vort3).  Made it compatible with both approximate form
1566      for the cubed sphere and full form of these gradients.  Added flag
1567      useFullLeith to select between approximate and full form.  
1568    o add "d0" in getcon.F to reduce differences between compilers/platforms
1569      update output.txt of exp. fizhi-gridalt-hs
1570    o change port_rand funtion to allow to set the seed.
1571    o fix obscure MNC bug involving conversion between reals and integers
1572      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1573        new version is now more standards-compliant
1574    o adjoint-related modifications
1575      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1576      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1577      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1578    
1579    checkpoint57e_post
1580    o Adding eddy stress controls a la Ferreira et al.
1581    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1582    
1583    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1584      update output.txt of exp. fizhi-gridalt-hs
1585    o add more "Z" dimensions and associated coordinate vars to MNC
1586    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1587    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1588      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1589      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1590      months and years.  Requires pkg/cal.
1591    o diagnostics: add pickup functionality
1592      - off by default for backwards compatibility
1593      - current version only uses MDSIO -- MNC will be added
1594    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1595    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1596    
1597    checkpoint57d_post
1598    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1599    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1600      output from the diagnostics package
1601    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1602    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1603      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1604    o add coordinate variables to the MNC output from the diagnostics package
1605    o change MNC-flags default value: true when useMNC=TRUE
1606    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1607      the ability (off by default) to read the grid information using MNC
1608    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1609    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1610    o do snap-shot diagnostics at the middle of the time-interval (instead of
1611      at the end).
1612    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1613      new test for AIM with thSIce + slab-ocean
1614    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1615    o move state variable diagnostics to the beginning of the time step ;
1616      (note: still needs some work specially for snap-shot diagnostics)
1617      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1618    
1619    checkpoint57c_post
1620    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1621    o generate new output.txt files on faulks with g77 & the new -ieee option
1622    checkpoint57c_pre
1623    
1624    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1625      update output.txt of exp. global_ocean.90x40x15
1626    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1627      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1628    o add saltFlux(+File) forcing capability with periodicExternalForcing
1629    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1630    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1631    o improvements for the MNC output from DIAGNOSTICS:
1632      - correct handling of the unlimitied dimension
1633      - all dims now have associated coordinate variables
1634      - variables located at U, V, and Corner ("Z") points are now written
1635        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1636        *all* data points are output
1637    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1638    o added pkg/seaice/seaice_monitor.F
1639    o mdsio_readfield.F can now read files visible only to master MPI process.
1640    o pkg/seaice: some test code for ice-modified ocean stress
1641    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1642      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1643      spurious negative numbers for precipitation and humidity.  Will cause
1644      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1645    o pkg/ctrl/
1646      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1647        May be enabled via doPackDiag
1648      *  introduce z-scaling of
1649         + gradient (doZscalePack) and
1650         + control (doZscaleUnpack)
1651    o pkg/mdsio/
1652      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1653      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1654    
1655    checkpoint57b_post
1656    o simplify options in diagnostics_fill arguments (remove weird combinations)
1657    o fix MNC coordinate variables so that they now contain per-face index
1658      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1659      general, EXCH2 grids are only aligned to a "local" coordinate system
1660    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1661    o Implement instantaneous output within pkg diagnostics:
1662      setting a negative frequency in data.diagnostics produces
1663     "snap-shot" output (as opposed to time-average if freq > 0)
1664    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1665      NOTE: change ptracer diagnostics name: use 2 characters to work with
1666            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1667    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1668      becomes the coordinate variable for the 'T' dimension
1669    o add CF-style coordinate variables to MNC
1670      - just a first cut:  numbers are meaningless on the cubesphere and
1671        missing along the T axis but otherwise it works!
1672    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1673    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1674    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1675      this is based directly on what the model compute, so that the content of
1676      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1677    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1678    o clean up build options files for SunOS, in particular
1679      - remove -traditional from xmakedepend
1680      - change -xarch=v9 to -xarch=native for f77
1681      - restore use of make (not gmake)
1682      - add CC=gcc if using g77
1683    o changes per discussion of AM, JMC, & EH3 today:
1684      - move redundant "grid" variables out of "state" -- in preparation of
1685        creating proper CF-style coordinate variables and in recognition
1686        that any/all grid variables can be easily copied (eg. w/NCO) from
1687        the grid files into any of the other NetCDF files
1688      - *always* output grid variables with MDSIO (this will eventually be
1689        changed)
1690      - output MNC grid file if useMNC is true
1691    o every instance of _END_MASTER() has been found and replaced with
1692      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1693      preprocessors
1694    o re-arrange diagnostics pkg initialisation:
1695     - allow each package to extend the available diagnostics list
1696     - add some checking and fix small problems (multi-threaded, ...)
1697     - new S/R diagnostics_fill (replace fill_diagnostics):
1698       look through the short list of active diag. (instead of the long list)
1699       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1700    
1701    checkpoint57a_post
1702    o this set of changes restores TAMC compatibility
1703      tested for global_ocean.90x40x15 adjoint on trough
1704      (what a pain)
1705    
1706    checkpoint57a_pre
1707    o some modifs in tools/build_options for sunos
1708    o call ctrl_pack for ctrl at end for optimcycle=0
1709    
1710    checkpoint57
1711    o add horizontal bi-harmonic viscosity for vertical velocity
1712      - new parameter viscA4W (defaults to viscA4)
1713      - affects only non-hydrostatic code
1714      - to be done: no-slip lateral boundary conditions
1715    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1716    o implement Implicit Vertical advection for pTracers
1717    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1718      (implemented also for implicit vertical diffusion & advection)
1719    o OBCS: extend application of tracer open boundary conditions
1720      to a strip beyond the boundary of width Olx/Oly
1721    o add call monitor to TAF set of required calls (flow directives)
1722      and include in natl_box_adjoint
1723    o untangle a few ifdefs related to cost, ctrl, autodiff
1724      untangel a few ALLOW_ECCO_OPTIMIZATION
1725    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1726      (theta2, salt2 in ecco_cost_weights)
1727    
1728    checkpoint56c_post
1729    o OBCS as control variables
1730      - update ctrl_ad_diff.list, obcs_ad_diff.list
1731      - remove balance of obcs controls from default
1732      - fix index bug nobcs in ctrl_init
1733      - fix dummy fields filen in ctrl_pack
1734      - add dummy weights for obcs
1735    o lsopt: comment out fort.94 output
1736    o optim:
1737      - remove unnecessary header files
1738      - adjusted namelists
1739      - add xerbla.F to Makefile
1740    o exf:
1741      - multiple modifications of exf_check_range
1742      - unit change in exf_init_runoff from [m/year] to [m/s]
1743    o mdsio:
1744      - i/o-vector change debugLevel from debLevA to debLevB
1745    
1746    checkpoint56b_post
1747    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1748      is called from DO_THE_MODEL_IO
1749      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1750      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1751      - clean up PTRACERS_WRITE_TIMEAVE a little
1752    o add another verification experiment that tests both the cfc-pkg and
1753      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1754      reactive tendencies treated inline with regular timestepping
1755    o testreport previously did a lousy job of comparing small numbers, so
1756      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1757      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1758      testreport.
1759    o ptracers_monitor: bug fix for MPI
1760    
1761    checkpoint56a_post
1762    o GCHEM: finish reorganizating the package
1763      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1764        (introduces another 3D-array for each passive tracer, but only if
1765        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1766        gchemTendency is not needed because the timestep is done separately)
1767      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1768      - GCHEM is now---more or less cleanly---separate from PTRACERS
1769      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1770        so clear to me how that should be done in a general way.
1771    o CFC: improve formatting of output in CFC_ATMOS
1772    o PTRACERS:
1773      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1774        that ALL experiments with ptracers enable can be checked. This makes
1775        GCHEM_MONITOR obsolete.
1776      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1777        monitorFreq
1778      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1779    o add PTRACERS (PTR0[1-5]) to testreport output
1780    o exf_check_range:
1781      * default changed to .TRUE.
1782      * will check values for niter0 if debLevA, every timestep if debLevB
1783      * STOP in exf_check_range if 'out of range'
1784      * range chosen generous to allow for potential extema
1785      TBD: a version with stricter range
1786           permitted range would be runtime parameters
1787    o GMredi:
1788      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1789      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1790      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1791    o GCHEM:
1792      - move call to GCHEM_FORCING_SEP, so that it is now called before
1793        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1794      - introduced a useGCHEM runtime flag and applied it everywhere.
1795      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1796        this flag is now only visible within GCHEM-pkg routines.
1797      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1798        be replaced by a 3D array that is computed before thermodynamics; for
1799        this, the tracer ID iTracer had to be included into the parameter list
1800        of ptracers_forcing
1801      - set up forward_step to call gchem_forcing, that will replace
1802        gchem_forcing_int in ptracers_forcing
1803      - cleaning up
1804    o small cleaning of exch2: remove files that are also in eesupp/src
1805    
1806    checkpoint56
1807    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1808    o mnc: cleanup "full" files--fixes out-of-memory problem
1809    o ECCO-GODAE
1810      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1811      * fully merged and updated from SIO code
1812        windstress sign change affects
1813        - exf_inscal_[u/v]stress
1814        - sign of xx_tau[u/v] adjustments
1815        - signs in cost_scat
1816      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1817      * natl_box_adjoint updated and compressed
1818      * 2-level checkpoint switch added
1819        (tested in EXP. 1 of natl_box_adjoint)
1820      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1821    o SVD
1822      * first complete, non-hacked version for SVD calculations
1823      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1824        performed via direct access files admtlm_vector.it????
1825        (via ctrl_[un]pack)
1826      * optimcycle is used for ARPACK iteration counter
1827        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1828      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1829        and add linear transforms where necessary
1830      * controls are initial/final SST, SSS (can be extended; need to check
1831        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1832    o mdsio: filename info to both stderr, stdout
1833    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1834      from sign change
1835    
1836    checkpoint55j_post
1837    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1838      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1839    o add consistent build directories and .cvsignore files to verification
1840    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1841    o make all subroutines 30 or less characters in length for certain older
1842      compilers to work (a thorough search only turns up two routines in
1843      pkg/ptracers)
1844    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1845      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1846    
1847    checkpoint55i_post
1848    o change arrays for total vertical diffusivity (2.D if explicit,
1849      3.D if implicit) ; each ptracer uses its own background value.
1850    o added mnc/NetCDF output capability to ocn_compon_interf
1851      - added bits to verification/cpl_aim+ocn so that it can run on
1852        ITRDA and other clusters without the mpirun "-wd" option
1853    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1854      configuration
1855    o give MNC the ability to create additional files rather than
1856      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1857      - the default is just less than 2GB which is a practical limit
1858        on many systems
1859    o Compute the non-local term using either KPP vertical diffusivity (=default)
1860       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1861    
1862    checkpoint55h_post
1863    o add verification test "vermix"
1864    o remove all the *_ioinc flags and replace with the single global
1865      outputTypesInclusive flag
1866    o allow to set a vertical profile of vertical diffusivity for T & S
1867    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1868    o useMNC moved from data.mnc to data.pkg
1869    
1870    checkpoint55g_post
1871    o Renaming carbon AD experiments to comply with testreport conventions
1872    o Updating adjoint of Held-Suarez hs94.1x64x5
1873    o Fixing directives for non-ECCO forward_step, after ECCO directives
1874      have been fixed to avoid recomp. of do_oceanic_phys
1875      Works well for global_ocean.90x40x15,
1876      but recomp. issue remains for carbon
1877    o Updating adjoint output for natl_box_adjoint after
1878      pkg/ecco has been modified (see taga c55d_post)
1879    
1880    checkpoint55f_post
1881    o rename to timeave_init_fixed
1882    
1883    checkpoint55e_post
1884    o some delicate re-shuffle of store directives to avoid one
1885      extra call of do_oceanic_physics
1886      affects ecco_the_main_loop.F, do_oceanic_physics.F
1887      checkpoint_lev1_directives.h
1888    o NB: this may break global_ocean adjoint temporarily,
1889      but it is clear how to fix it. Will do later, need this now.
1890    
1891    checkpoint55d_post
1892    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1893    o ecco_cost_weights is modified to 1x1 runs
1894    o modifs to allow observations to be read in as
1895      single file or yearly files
1896    o enable to read exf forcing fields as either
1897      single file or yearly files (flag useExfYearlyFields)
1898    checkpoint55d_pre
1899    
1900    o switch between 2-level and 3-level checkpointing
1901    o add ability of MNC to write local and "partial" (eg. 2D slices where
1902      the full 3D field is never actually stored) arrays to NetCDF files
1903      with the correct (that is, the complete multi-dimensional) set of
1904      array indicies
1905      - used in mom_vecinv() to write the diagFreq output
1906      - tested (demonstrated) in verification/aim.5l_cs
1907    o further mnc-ification
1908      - add verification/lab_sea to the list with mnc setups
1909      - fix undefined mnc v-names in cd_code
1910      - add kpp to mnc output (both snapshot and timeave)
1911    o non-hydrostatic code
1912      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1913        in calc_gw.F
1914      - defaults to viscAh
1915      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1916        friction or Leith) in non-hydrostatic mode, as long as there is
1917        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1918    o pkg/cost
1919      extend simple cost functions to treat time mean quantities
1920      (T,U,V) via cost_accumulate_state from cost_tile
1921    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1922        be 2 times larger than the minimum size the advection scheme requires.
1923        now get a perfect conservation of salt in advect_cs test-exp (updated)
1924    o GGL90 (Gaspar's TKE mixed layer)
1925      - add horizontal diffusion of TKE, requires exchanges in
1926        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1927        default. In OPA there is no horizontal diffusion of TKE but the
1928        mixing coefficients are computed from a horizontal average of TKE of
1929        6 points or so. I think that diffusion has a little more physical
1930        justification.
1931      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1932        was in vain)
1933      - mask tke-variable in ggl90_init
1934    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1935    o fix biharmonic diffusion on CS-grid.
1936    o more obcs stuff
1937      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1938        for reading boundary values. This routine is called from
1939        obcs_prescribe_read
1940      - updated obcs_check
1941      - changed sponge layer relaxation parameter units for days to seconds
1942      - turned off sponge layer by default
1943      - changed argument list of OBCS_CALC to myTime+deltaTclock
1944      - fixed about 35 bugs in obcs_external_fields_load
1945    
1946    checkpoint55c_post
1947    o obcs stuff
1948      - new runtime flags useOBCSprescribe, useOBCSbalance
1949      - re-arranged obcs_calc
1950      - moved exf_getobcs to obcs_prescibe_read
1951        obcs_prescibe_read is called after ORLANSKI stuff
1952        and independent of it (executable can contain all).
1953      - updated obcs_check
1954      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1955        These may be necessary only if tangential velocities are
1956        prescribed at OB, not sure, needs testing.
1957    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1958      which simplifies the calls and passes the ifc check-bounds test
1959    
1960    checkpoint55b_post
1961    o add a 2D scalar, Z location, exchange_2 routine.
1962    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1963      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1964      affects advect_cs results (for the wrong reason): update output.txt
1965    o use a more standard discretization for biharmonic viscosity ;
1966     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1967      affects results of dome set-up: update output.txt
1968    o fix gad_advection.F (CubedSphere part), back to version 1.23
1969    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1970    
1971    checkpoint55a_post
1972    o merged code to
1973      * prescribe/read time-dependent open boundaries
1974        (works in conjunction with exf, cal)
1975      * sponge layer code for open boundaries
1976      * each boundary N/S/E/W now has its own CPP option
1977        (healthy for the adjoint)
1978    
1979    checkpoint55
1980    o up-to-date adjoint of previous breaks
1981      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1982      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1983      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1984      - carbon: * remove tr1-related adjoint verification
1985                * add ptracer as control variable
1986    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1987      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1988    
1989    checkpoint54f_post
1990    o in verification/carbin/ remove experiment related to
1991      ALLOW_PASSIVE_TRACER (array tr1 etc)
1992      code_ad/ input_ad/ results_ad
1993    
1994    o add two new packages
1995      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1996        + subject to optimization (memory)
1997      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1998        + subject to reordering (many GOTOs in the original code)
1999        + so far opps is called for every (i,j) point, and then operates in
2000          the vertical; one may want to reorder the scheme in order operate in
2001          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2002          fields)
2003    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2004      - all verification tests compile and run with linux_ia32_g77
2005      - defaults are compatible with current input files--nothing
2006        should change if you were not previously using MNC
2007      - MNC output has been added in numerous places (eg. timeave)
2008        but there are still a few writes not yet do-able with MNC
2009        (this is in progress)
2010      - flags now allow for either/or/both use of MDSIO and MNC and
2011        documentation will soon follow
2012      - numerous small formatting cleanups for ProTeX
2013    o add version info (via BUILD_INFO.h) to MNC and stdout
2014    
2015    checkpoint54e_post
2016    o add two new packages
2017      - pp81 (Packanowski and Philander, 1981), Richardson number and
2018        stratification dependent mixing
2019      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2020      - these scheme operate in a similar manner as KPP (without ghat, of
2021        course), however there is only one diffusivity that is used for both
2022        temperature and salinity (and passive tracers)ç
2023    o add offline package
2024    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2025      provided by Stephanie Dutkiewicz
2026    o genmake2: add ability to search for C compilers and cleanup test output
2027      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2028    
2029    checkpoint54d_post
2030    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2031    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2032      leading to additional shift by 5 days each year of integration
2033       (i.e. leading to considerable offset over the years)
2034    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2035    o start with no AB and no initial filtering (staggerTimeStep):
2036      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2037    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2038      (external loading & cpl import/export stay in forward_step.F)
2039    o update coupling interface to work with new staggerTimeStep
2040    o change MDSIO ptracers_pickup.
2041    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2042    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2043    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2044    
2045    checkpoint54c_post
2046    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2047      this affects (truncation error) output.txt of test-exp:
2048       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2049    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2050    o change Qnet to always be the net heat flux, (+upward).
2051      affects (truncation error) output of natl_box exp.: updated
2052    o define the max number of passive tracers in PTRACERS_SIZE.h
2053    o start to test mnc routinely in exp0
2054    o add sea-ice loading (sIceLoad) as a new forcing field.
2055    
2056    checkpoint54b_post
2057    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2058       impressive on Altix and Opteron systems)
2059    o diagnostics can now write NetCDF files through the mnc package
2060    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2061    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2062    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2063      affects (truncation error) output of lab_sea & natl_box exp.: updated
2064    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2065    
2066    checkpoint54a_post
2067    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2068    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2069    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2070    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2071      + internal_wave (shift in writing cg2d_ini_res)
2072    checkpoint54a_pre
2073    
2074    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2075      - modified verification/lab_sea and natl_box_adjoint accordingly
2076    
2077    checkpoint54
2078    checkpoint53g_post
2079    o prepare splitting of thermodynamics: store convect.counter in common block
2080    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2081      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2082    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2083    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2084    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2085    o restore adjointability
2086    
2087    checkpoint53f_post
2088    o modifications that affect AIM experiment results (update output.txt):
2089      - no advection of S at top interface Nr (pkg/generic_advdiff)
2090      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2091    o AIM pkg:
2092      - include stability function into surf.Flux derivative relative to Tsurf
2093      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2094    
2095    checkpoint53e_post
2096    o merged cylindrical coord configuration
2097    o added rotating_tank experiment
2098    checkpoint53e_pre
2099    
2100    checkpoint53d_post
2101    o faulks upgraded: re-generate output.txt that have changed:
2102       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2103    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2104    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2105    o added Sadourny discretization of Coriolis
2106      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2107      - re-enabled use of omega3 (useAbsVorticity)
2108    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2109      vector-invariant equations
2110      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2111    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2112      hopefully without new bugs
2113      - still to do: biharmonic friction for non-hydrostatic w
2114    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2115    o regenerated output for global_ocean_ebm (using -ieee)
2116    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2117      of mom_common/
2118      - simple re-arrangement of instructions within computing loop
2119    checkpoint53d_pre
2120    
2121    checkpoint53c_post
2122    o new version of coupler for AIM+thSIce and Ocean models
2123     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2124     - land: change Evaporation of snow
2125     - aim with thSIce: fix bug in snow-precip.
2126    o changes to calc_gw.F
2127     - bug fix for w^2 term near the bottom boundary
2128     - (hopefully) improve the lateral slip boundary condtions for use with
2129        partial/looped cells
2130      - because the bug fix changes two verification experiments anyway (exp5
2131        and plume on slope), change the lateral boundary condition from half slip
2132        to the value of no_slip_sides
2133    o ebm package wasnt quite up to the parallel task. Fixed that.
2134    o Adjoint of EBM package + verification
2135      * TLM OK
2136      * ADM not sufficient accuracy yet (needs further testing)
2137    
2138    checkpoint53b_post
2139    o Commiting new energy balance model to repository
2140      * package is pkg/ebm
2141      * verif. is verification/global_ocean_ebm
2142      * references are in ebm_driver.F
2143    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2144    C        Global thermohaline circulation. Part I:
2145    C        Sensitivity to atmospheric moisture transport.
2146    C        J. Climate 12(1), 71-82
2147    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2148    C        Global thermohaline circulation. Part II:
2149    C        Sensitivity with interactive transport.
2150    C        J. Climate 12(1), 83-91
2151    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2152    C        Destabilization of the thermohaline circulation
2153    C        by atmospheric eddy transports.
2154    C        J. Climate 7(12), 1870-1882
2155    o Will need long integration testing.
2156    checkpoint53b_pre
2157    
2158    o created pkg/mom_common in preparation for variable viscosity code
2159    o renamed and split ini_mnc_io
2160    o pkg/land: only liquid water can diffuse or run-off
2161    o AIM using land: soil wetness availability account for snow
2162    o added printMapIncludesZeros to EEPARMS namelist
2163    
2164    checkpoint53a_post
2165    o restore TAMC compatiility for exf_constants.h
2166      (no usage of _d in .h)
2167    o Additional storing in KPP in an attempt to fix
2168      TAMC problem with adjoint of KPP code.
2169      (no success...)
2170      Identical code works fine with TAF.
2171    o Fixed verification/natl_box_adjoint experiments.
2172      Initial conditions for Experiments 4 and 5 are now
2173      set to "SEAICE_initialHEFF=0", which is more reasonable,
2174      and hence gives results closer to that of Experiment 2.
2175      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2176    
2177    checkpoint53
2178    o stable checkpoint with up to date adjoint
2179      TLM tests only run for 1st grdchk at the moment. Its unclear if
2180      this is a code problem or a problem with resetting code for g_
2181      variables that is being autogenerated wrong.
2182      Otherwise:
2183       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2184       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2185         are both still in chaos following their security messes.
2186    
2187    checkpoint52n_post
2188    o various build (mostly genmake2) changes including:
2189      - ability to build/run more easily within Cygwin and MacOS X
2190      - more complicated Makefiles with a stronger dependence on Gnu Make
2191    o pkg/seaice modifications
2192      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2193        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2194        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2195      - changed proxy for geostrophic velocity and updated
2196        verification/lab_sea/results/* accordingly
2197      - removed ADI dynamic solver from pkg/seaice
2198      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2199        they caused a segmentation fault under certain circumstances
2200      - removed unused field WATR
2201    o bug fix in exf-package:
2202      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2203         now reflect that.
2204    o small fixes in the cal-package:
2205      - set reference date to first of January for the 'model'-calendar
2206      - failing of cal_CheckDate in cal_FullDate now actually results in a
2207        warning
2208    o small modifications in exf-package to increase flexibility:
2209      - change climtempfreeze from a constant to a runtime parameter that
2210        is specified in data.exf_clim (default = -1.9)
2211      - introduce runtime parameter windstressmax (default = 2.0) that is
2212        specified in data.exf
2213    o fix in pkg/thsice:
2214      - update Evap (Tsf changes) to be consistent with Latent heat flux
2215      - maintain snow precipitation unchanged (even if Tsf >=0).
2216     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2217    
2218    checkpoint52m_post
2219    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2220      this does not change any of the results, because myIter=0 in swfrac always
2221      lead to jwtype=2 (the default anyway), but the call makes little sense
2222      as a default
2223    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2224    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2225      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2226    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2227    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2228    o extending useSingleCpuIO option to work with new exch2 I/O format
2229      - old-style, missing-tile I/O is still accessible by defining CPP
2230        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2231    o monitor package can write to NetCDF files and/or STDOUT
2232    o fix re-definition bug in MNC_GRID_INIT_ALL()
2233    o doc/api_reference added
2234      - a framework for building an API Reference Manual using all
2235        the "protex" comments embedded in the code
2236      - see pkg/generic_advdiff, pkg/mnc for examples
2237    o MNC:
2238      - make myThid the last argument for all subroutines
2239      - new default for the grid files: NO halos
2240      - add useMNC and other run-time flags
2241      - separate per-file-group handling of the unlimited dimension
2242      - early initialization of MNC w/ flags read at the eeboot stage
2243        and lookup tables set in initialize_fixed
2244      - write all MNC output to a freshly-created directory
2245    o thermodynamics sea-ice (thsice) is now tested with testreport.
2246    o test exp. advect_cs: use the standard cs32 grid ; update output.
2247    o Added functionality to grdchk:
2248      pick global i,j,k position (or nearest wet) where to perform check.
2249    
2250    checkpoint52l_post
2251    o new land formulation:
2252      a) use ground enthalpy as prognostic variable to ensure exact
2253         energy conservation.
2254      b) account for water temperature and for latent heat of freezing
2255         in all processes (rain, run-off, ground storage)
2256      c) compute surface and ground temperature implicitly.
2257    o aim_v23 modification for new land model:
2258      a) Treat separately land / ocean / sea-ice surface fluxes
2259         to allow implicit computation of land & sea-ice surface temp.
2260      b) add snow precipitation.
2261    checkpoint52l_pre
2262    
2263    o fix problem (when 1 tile is empty) in min/max monitor.
2264    o fix bug in timeAve (u,vZetatave in common block)
2265    o no restoring terms under ice for pkg/seaice
2266    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2267    o bug fix for pkg/seaice pickups
2268    o change MNC call locations and add coordinate attributes
2269    o mask vorticity at the corner ; affects global_ocean.cs output
2270    o fix ini_curvilinear_grid ; test CS experiments with mpi
2271    o aim.5l_cs: modify sea-ice fraction input file ; update output
2272    o exf: Adding simple range check routine for exf fields after read
2273    
2274    checkpoint52k_post
2275    o removed top-level directory "diags"
2276      - we migrated these functions to pkg/timeave a long time ago
2277    o fixed bug introduced in pkg/monitor
2278    o accuracy ctrlprec = 32 insuffient for gradient checks using
2279      averaged fields (I/O via cost_averages)
2280      -> use ctrl.h in active_file*.F to control I/O precision.
2281    o paramter list of CALL ADTHE_MAIN_LOOP
2282    o added initial do_the_model_io to ecco
2283    o set all ...Freq to zero after cost_final
2284      taveFreq, dumpFreq, pChkptFreq
2285    o MAIN and ECCO differentiability restored
2286    
2287    checkpoint52j_post
2288    o fix nchklev in tamc.h for global_ocean...
2289    o Bringing flow and store directives up-to-date
2290    o Really weird thing!
2291      call do_the_model_io from the_main_loop with parameters
2292      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2293      TAF places a faulty re-call of initialise_varia
2294      after cost_final call which should not be there!
2295    checkpoint52j_pre
2296    
2297    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2298      error messages
2299    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2300    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2301      debug output
2302    o modfied mdsio_writefield.F to handle non-global files under exch2
2303    o update AIM Cubed-Sphere exp (aim.5l_cs):
2304      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2305    o update AIM Equatorial Channel exp:
2306      use standard aim_v23 pkg and change the SST fields to be more realistic.
2307    o globalFile now works with exch2
2308    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2309      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2310    o limit timeave output for hi-res integrations
2311    
2312    checkpoint52i_post
2313    o removed CPP_EEOPTIONS.h from verification/*/code
2314    o updated the tiling for global_ocean_pressure
2315    checkpoint52i_pre
2316    
2317    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2318      the old pkg/aim).
2319    
2320    checkpoint52h_pre
2321    o shortened offending lines in exch2_send_rx?.template
2322    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2323    o genmake2: add build & execute test for NetCDF code
2324    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2325      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2326    o added useSingleCPUIO flag to monitor.F and mon_out.F
2327    o added temporary hack for sea-ice dynamics on the cube:
2328      metric terms are ignored and it is assumed that
2329      there is no sea-ice on cube faces 1, 2, 4, and 5.
2330    
2331    checkpoint52f_post
2332    o added exch2 cube routines to pkg/exch2
2333    o modified hs94.cs-32x32x5 to use it
2334    o added new grid files to hs94.cs-32x32x5
2335    checkpoint52f_pre
2336    
2337    checkpoint52e_post
2338    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2339      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2340    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2341      to work with implicit vertical advection and AB ;
2342    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2343    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2344     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2345    checkpoint52e_pre
2346    
2347    o fix bug in impldiff when Nr=1 or Nr=2.
2348    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2349    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2350    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2351      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2352    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2353    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2354    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2355    
2356    checkpoint52d_post
2357    o re-tiled many expts to allow comparison in multi-processor mode
2358      - updated output accordingly
2359      - changed hs94.128x64x5 to use intial T from file rather than use the
2360        random number generator
2361    o add infrastructure in model routines for fizhi and gridalt packages
2362    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2363    o changes to permit hi-res, cubed-sphere, configuration
2364      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2365      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2366      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2367        of surface winds for the cube
2368      (A verification experiment, based on global_ocean.cs32x15, but with
2369       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2370       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2371       complete with example surface forcing files and matlab scripts to look
2372       at the output and compare it with that of global_ocean.cs32x15.)
2373    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2374       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2375       to conform to the common rule.
2376    o check-in the first version of the coupler + interfaces for multi-components
2377       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2378       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2379       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2380       - ocean and atmos. share the same horizontal grid (no interpolation).
2381       - exchanges between component and coupler is done in forward_step
2382    o new verification experiment, cpl_aim+ocn:
2383       coupled ocean - AIM atmosphere on cs32 grid.
2384    
2385    checkpoint52d_pre
2386    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2387    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2388    
2389    checkpoint52c_post
2390    o Fixing OPTIONS files for use of exf:
2391      - ALLOW_ECCO not needed
2392      - ECCO_CPPOPTIONS.h should not be included from
2393        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2394        as has been the case in the past
2395      - All cal/exf related options are currently set in
2396        single header file. Should remain so until we
2397        agree on a consistent new policy.
2398    o Removed all CPP options for cal package.
2399      cal has no more CPP options.
2400    o modified STOREs in GAD_ADVECTION
2401    o corrected key comp. for passkey
2402    
2403    checkpoint52b_post
2404    o new version: "thsice" of thermodynamic sea-ice pkg:
2405     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2406     - modify fluxes but do not change theta directly;
2407     - light cleaning of bulk_force pkg (still needed with thsice).
2408     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2409       + output_thsice.txt to test thsice & bulk_force pkgs.
2410    o put back grid & coriolis monitor output.
2411    checkpoint52b_pre
2412    
2413    o call "do_the_model_io" at the beginning (=> dump initial state)
2414    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2415    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2416      (need info on NUMBER_OF_PTRACERS)
2417    o missing PTRACERS headers in some routines
2418    o default tamc.h in pkg/autodiff supposed to crash
2419      to ensure proper customization
2420    
2421    checkpoint52a_post
2422    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2423      - moved surfaceTendencyTice from pkg/seaice to main code
2424      - subroutine FREEZE_SURFACE now limits only surface temperature
2425        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2426        => new output.txt for global_ocean.cs32x15 & global_with_exf
2427      - keep the old version of FREEZE for backward compatibility;
2428        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2429      - corresponding modifs for TAF directives
2430    o added surface flux output variables to TIMEAVE_STATVARS
2431    o time-averaged output for pkg/ptracers
2432    o fix problem with ECCO-related divided adjoint
2433      snapshot file was missing some ad-variables,
2434      but no warning issued by TAF
2435    
2436    checkpoint52a_pre
2437    o some bug fixes for #undef REAL4_IS_SLOW
2438    
2439    checkpoint52 = ecco_c52_e35
2440    o after testing adjoints of checkpoint51u_post
2441    
2442    checkpoint51u_post
2443    o this is the post-merge tag of the ecco-branch
2444      (needs another clean checkout and re-testing)
2445    o various natl_box_adjoint configs and results
2446      but no input fields
2447    o obcs adjoint not yet merged!
2448    o adding ECCO global 1x1 and 2x2 degree configs
2449    o updated/extended some store directives for seaice
2450    o pkg/ecco now containes ecco-specific part of cost function
2451    o top level routines the_main_loop, forward_step
2452      supersede those in model/src/
2453      previous input data.cost now in data.ecco
2454      (new namelist ecco_cost_nml)
2455    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2456    
2457    checkpoint51t_post
2458    o this is the pre-merge tag of the ecco-branch
2459    
2460    checkpoint51s_post
2461    o cleanup: removed various obsolete #define-s
2462    o pkg/grdchk
2463      - renamed 'ph-grd 3' to 'grad-res'
2464      - merged from ecco-branch
2465        (remaining bug fixes for obcs gradient checks)
2466      - additional high-precision output for testreport
2467        (grep for 'precision_grdchk_result')
2468    
2469    checkpoint51r_post
2470    o cleaned up or removed CPP_OPTIONS.h files
2471    o updated results for some of the tests to reflect the new
2472      optfiles (-ieee: -O0 instead of -O3)
2473    
2474    checkpoint51q_post
2475    o cd_code:
2476      - moved cd_scheme.F -> cd_code_scheme.F
2477      - separate read_checkpoint from cd_code_ini_vars.F
2478      - separated cd_code part from write_checkpoint
2479      - updated AD_SOURCE, generated .flow
2480      - added CD_CODE_VARS.h to the_main_loop
2481      - Moving cd_code specific store dir.s to pkg/cd_code
2482    o ctrl package totally restructured
2483      - pack/unpack now optional and decoupled from
2484        xx_/adxx_ I/O
2485      - ctrl_pack/unpack cleaned
2486        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2487      - confined inclusion of AD_CONFIG.h to where necessary.
2488    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2489    
2490    checkpoint51p_post
2491    o create initial cd_code package
2492      - WARNING: the initialization of fields within packages
2493        is broken because INI_FIELDS (where READ_CHECKPOINT is
2494        called) is called *before* PACKAGES_INIT_VARIABLES.
2495        This seems to be backwards since
2496        1) its important to initially zero the entire field including
2497           the "halo" region
2498        2) zeroing needs to be done *before* reading pickup info
2499           and the pickup call might or might not happen in any
2500           particular run
2501      - this needs an overhaul for R2
2502    o cleanup verification/*/code/GMREDI_OPTIONS.h
2503    o cleanup testreport
2504    
2505    checkpoint51o_post
2506    o bringing AD-related verif's up to date with genmake2
2507      - carbon/
2508      - global_ocean.90x40x15/
2509      - hs.94.1x64x5/
2510      - (front_relax/ )
2511    o (more) consistent directory structure for AD-related verif.'s
2512    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2513    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2514    o bug fix in find_alpha.F for MDJWF:
2515      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2516        change rho -> rho-rhoConst
2517      - replace call find_rho to find_rhonum
2518    o initialisation of rFlx extended to full array (required by TAF)
2519      and shifted to thermodynamics
2520    o removed PTRACERS.h in ptracers routine
2521    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2522    o Correcting initialisations for fVerU, fVerV.
2523    o helping TAF to recognize dependency on kUp for
2524      fVerU, fVerV
2525    o Replacing delZ by delR in pkg/ctrl/
2526    checkpoint51o_pre
2527    
2528    o undid all of cp51 pending some cleanups and discussion
2529    o added the [#include "AD_CONFIG.h"] statement to all files that need
2530       it for adjoint/tl #defines
2531     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2532     o removed tools/genmake since it no longer works
2533    
2534    checkpoint51n_post
2535    o modifications to make FREEZE flux visible to pkg/kpp
2536      - moved surfaceTendencyTice from pkg/seaice to main code
2537      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2538      - subroutine FREEZE now limits only surface temperature
2539        (this means new output.txt for global_ocean.90x40x15,
2540         global_ocean.cs32x15, and global_with_exf)
2541    o added surface flux output variables to TIMEAVE_STATVARS
2542    
2543    checkpoint51n_pre
2544    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2545    o added [#include "AD_CONFIG.h"] to all files that use the following
2546      defines:
2547      - ALLOW_ADJOINT_RUN
2548      - ALLOW_TANGENTLINEAR_RUN
2549      - ALLOW_ECCO_OPTIMIZATION
2550    
2551    checkpoint51m_post
2552    o incorporating changes to get TAMC/TAF working in genmake2
2553      - added new TAMC/TAF targets to the Makefile
2554      - various cleanups related to package handling
2555      - these changes should have no impact on the forward model
2556    
2557    checkpoint51l_post
2558    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2559     - faster algorithm for cal_addtime.F
2560     - higher precision arithmetic, where needed
2561     - pkg/exf *startdate variables changed from calendar date to
2562       model integration time
2563    
2564    checkpoint51l_pre
2565    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2566    o enable to apply restoring on S & T only in a latitude band.
2567    o update output (external_forcing_surf modif. change truncation errors)
2568       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2569    
2570    checkpoint51k_post
2571    o change default to: useNHMTerms=.FALSE.
2572     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2573       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2574     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2575        exp1, ideal_2D_oce
2576     - change data file of oceanic exp (leave the results unchanged for now)
2577       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2578    o set gravitySign automatically according to the vertical coordinate used
2579      (and change sign: back to "logical" value: +1 when R increases downward)
2580    o added an include barrier to the default CPP_OPTIONS.h and
2581      removed the #include "PACKAGES_CONFIG.h" from it
2582    o fix a bug in mom_fluxform (from chk51j_post)
2583    
2584    checkpoint51j_post
2585    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2586    o adjusted some flow directives (dynamics, thermodynamics)
2587    o added cubed-sphere case to test cost function
2588    o heckpoint_lev?_directives.h now include
2589      pkg-specific directives, whenever those are enabled.
2590    o Moving pkg-specific flow directives to corresponding pkg
2591      Moving pkg-specific differentiation list to corresponding pkg
2592      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2593      ---> conventions are
2594           - pkg_ad.flow
2595           - pkg_ad_diff.list
2596           - pkg_ad_check_lev?_dir.h
2597    
2598    checkpoint51i_post
2599    o merge of the branch-genmake2
2600      - knowingly breaks the older genmake
2601      - automatic generation of all ALLOW_${PKG_NAME} defines
2602      - new testreport supersedes older testscript
2603    o large number of package inclusion and header cleanups
2604    checkpoint51i_pre
2605    
2606    o new output for adjoin of global ocean vector invariant
2607    o fix for checkpoint of thermodynamic seaice and bulk_force
2608    o Steph gchem various cleanups
2609    
2610    checkpoint 51h_pre
2611    o fixed some single quotes
2612    o modify gchem pkg to be more versatile
2613    o modifications to clean up dic pkg
2614    o add pkg/cfc
2615    
2616    checkpoint51g_post
2617    o provide links for ARPACK and ADM*TLM
2618    o start removing verification/vero/
2619    o update AD-related stuff
2620      (in particular some IF-statements in model/src/ routines)
2621    o adding to verification/global_ocean.90x40x15/ adjoint of
2622      vector invariant setup
2623    
2624    checkpoint51f_post
2625    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2626    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2627      of tracer Green's fucntions for ocean inversion project.
2628    
2629    checkpoint51f_pre
2630    o Added on-the-fly spatial interpolation capability
2631        "USE_EXF_INTERPOLATION" to pkg/exf.
2632      - This is a temporary Cartesian-grid hack until
2633        the super-duper ESMF coupler becomes available.
2634      - See verification/global_with_exf/README for usage example.
2635      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2636        flags and modified pkg/seaice accordingly.
2637    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2638        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2639        non-local transport term.
2640    
2641    checkpoint51e_post
2642    o pkg/mom_vecinv:
2643      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2644      - add time-ave diagnostic of vorticity advection.
2645    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2646    o atmospheric geopotential: - include water vapor effect;
2647                                - use p^kappa in p* scaling.
2648    o land pkg: read initial state from files.
2649    o AIM : add stratospheric drag in the upper level
2650    
2651    checkpoint51d_post
2652    o change function ILNBLNK (=> last non-blank char.) to return zero
2653      (instead of the string length) when the string. char is empty
2654    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2655    o modif's to restore TAMC compatibility
2656      - avoid "_d" constructs in PARAMETER declarations
2657      - avoid interrupting lines by comment lines
2658    o Use cluster local disks for purely local I/O
2659      vs. globally visible disks needed for ctrl stuff
2660      (merged from ecco-branch)
2661      - new active_file_loc... and mdsio_..._loc routines
2662      - affected packages: autodiff, ctrl, grdchk, mdsio
2663    
2664    checkpoint51c_post
2665    o introducing integer flag debugLevel
2666      - debLevZero: suppress all output
2667      - debLevA: standard
2668      - debLevB: equivalent to current debugMode=.TRUE.
2669    o introducing pathname variable mdsioLocalDir for mdsio
2670      that can be specified at runtime
2671      (relevant for cluster I/O to local disk)
2672    `
2673    >>>checkpoint51b_post
2674    adjoint of ptracers
2675    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2676    o extended state in checkpoint_lev?, etc.
2677    o alternative ctrl/cost with tr1 or ptracer
2678    o new comlev1_bibj_ptracers
2679    o new ptracers.flow
2680    o made ptracers_forcing same as external_forcing_s
2681    o added verification for adjoint with ptracers
2682      - adm. grdchk fail so far
2683      - tlm. grdchk OK
2684      - checked tapelev/comlev recomputations: OK
2685    <<<checkpoint51b_pre
2686    
2687    checkpoint51a_post
2688    o added code for biogeochemistry package
2689      - new pkgs: dic, gchem
2690      - new subroutine in ptracers
2691    o modify code for biogeo packages
2692      - in model/src and pkg/ptracers
2693    
2694    checkpoint51
2695    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2696      - autodiff, ctrl, exf, grdchk, seaice
2697      kept separate packages
2698      - cost, ecco, obcs
2699    o updating verification/internal_wave, verification/lab_sea
2700      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2701    
2702    checkpoint50i_post
2703    o Preparing next differentiable checkpoint and sync
2704      of MAIN vs. ecco-branch
2705      - 1st step: this one is differentiable
2706      - 2nd step: next(! not this) checkpoint will have updated packages
2707                  from ecco-branch)
2708    
2709    checkpoint50h_post
2710    o new package "land": provide surface BC for AIM.
2711    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2712    o AIM: use true log-P extrapolation for near surface temp (= as in
2713        F.Molteni paper) ; update aim.5l_cs output.
2714    o New variable in PARM03 for more flexible pickups
2715    o somewhat cleaned package initialisation sequence for
2716      ctrl/ cost/ ecco/ in packages_... routines
2717    
2718    checkpoint50g_post
2719    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2720      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2721      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2722        made the default because of faster convergence than ADI
2723    
2724    checkpoint50f_post
2725    o exf totally restructured
2726      - replaced all exf_set_ routines by one generic exf_set_gen.F
2727        and made sure it's still differentiable
2728      - split exf_getffields.F into new exf_bulkformulae.F
2729      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2730      - updated adjoint/makefile and relevant verif. accordingly
2731    
2732    checkpoint50f_pre
2733     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2734          + change Evap over land. (update aim.5l_cs output)
2735     o added missing .cvsignores and made uniform across expts
2736     o changed configuration of tidal_basin_2d expt
2737     o added pkg/debug functions for tracing code in fatal crashes
2738     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2739     o new fn in pkg/monitor to stop model if solution grows too big
2740     o removed lots of single quotes from comments
2741    
2742    checkpoint50e_post
2743    o make KPP work with PTRACERS
2744     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2745       nearly a copy of kpp_transport_s
2746     - there is no analogue to SurfaceTendencyS, so I have to use
2747       gPtr(of the surface layer) instead
2748    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2749    checkpoint50e_pre
2750    
2751    checkpoint50d_post
2752    o change kpp output from multiple-record state files to single-record state
2753      files analogous to write_state.F
2754    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2755      analogous to the cg2d-related output.
2756    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2757      so that writing to internal file fn (with length 512) fails.
2758    checkpoint50d_pre
2759    
2760    checkpoint50c_post
2761    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2762    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2763    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2764    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2765    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2766    
2767    checkpoint50c_pre
2768    Merging from release1_p13:
2769    o bug fix for pkg/seaice dynamic solver
2770    o Added SEAICE_initialHEFF to pkg/seaice
2771    
2772    checkpoint50b_post
2773    o store u*,v* in gU,V instead of in guNm1,gvNm1
2774    o in order to put the momForcing out of the Adams-Bashforth:
2775      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2776      to timestep.F
2777    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2778    o re-generate output for highly sensitive test-exp:
2779       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2780    
2781    checkpoint50b_pre
2782    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2783    o corrected CPP option mismatch in exf_Bulk... functions for case
2784      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2785    
2786    checkpoint50a_post
2787    o Bug fix for merging between c50 and KPP.
2788      ikey was passed from thermodynamics to kpp_calc via
2789      common block rather than being recomputed in kpp_calc,
2790      in contradiction with new key itdkey.
2791      New key ikppkey created, and tamc.h headers updated.
2792    
2793    checkpoint50
2794    - 2nd step of merge with ecco-branch:
2795      merge changes in ecco-branch back into main trunk
2796    - bug fix in find_alpha
2797    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2798    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2799    - merged some sliced AD support routines
2800    
2801    checkpoint49
2802    merged from ecco-branch:
2803    o exf:
2804      - Enable initialisation of forcing fields to constant
2805        (runtime) values.
2806      - in exf_getffields.F
2807        Reduce i-/j-loop to interior domain, discarding overlaps.
2808        That also fixes wrong TAF-key computations for key_1, key_2
2809        with bulf formulae.
2810      - exf_init.F modify #ifdef for exf_init_evap
2811      - exf_getffieldrec.F, ctrl_getrec.F
2812        The following INT-usages are not safe:
2813          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2814          fldcount = int(fldsecs/fldperiod) + 1
2815        and were modified.
2816    o autodiff: checkpoint_lev...
2817      - updated storing for bulk formulae (some arrays were missing)
2818      - added state for seaice package
2819      - synchronized with main branch
2820    o DIVA:
2821      Modif.s in
2822      - the_main_loop.F
2823      - the_model_main.F
2824      and added cost_final_restore.F cost_final_store.F
2825      o With these changes, it is possible to fully separate
2826        the first forward run to compute the cost function (mdthe_main_loop)
2827        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2828        into separate model executions.
2829        This enables better tuning of DIVA to given queue sizes.
2830      o Loss of cost function value in consecutive DIVA runs is
2831        fixed by storing to 'costfinal' file.
2832      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2833        beginning/end of adjoint integration is accounted for.
2834      The current changes apply to TAF-1.4.26.
2835      TAF has one remaining bug, requiring one manual change
2836      (see MITgcm manual).
2837    o cal: synchronized between MAIN and ecco-branch
2838    
2839    checkpoint48i_post
2840    o Changes to restore differentiability of code w.r.t. previous tag
2841      (mostly adding new routines to make list and replacing
2842      pressure by totPhiHyd).
2843    o Updated and merged grdchk package
2844      - has both ADM and TLM checks
2845      - works for single- and multi-proc.
2846      - output cleaned
2847      - worked successfully for parallel DIVA
2848    o genmake:
2849      - Adding -platform=SP4
2850      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2851    o Modif. for DIVA:
2852      ctrl_unpack should not be called in intermediate DIVA interval.
2853      (similar thing would apply for active files such as
2854      tbar, sbar, psbar, which should not be reinitialised;
2855      only relevant for ecco-branch)
2856    
2857    checkpoint48h_post
2858    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2859    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2860    o Added SEAICE_initialHEFF to pkg/seaice
2861    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2862    
2863    checkpoint48g_post
2864    --- EOS:
2865    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2866      store total Potential in totPhyHyd for diagnostics & EOS.
2867    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2868    --- Pressure/geopotential gradient:
2869    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2870    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2871      ( changes results of global_ocean_pressure )
2872    o NLFS + z-coord.: add eta*Rho' contribution.
2873    o accurate phiHyd when using interface-W at the middle between 2 centers
2874     ( changes results of ideal_2D_oce )
2875    o includes r* 2nd term in potential gradient.
2876    
2877    checkpoint48f_post
2878    Merging from release1_p12:
2879    o Modifications for using pkg/exf with pkg/seaice
2880      - improved description of the various forcing configurations
2881      - added basic radiation bulk formulae to pkg/exf
2882      - units/sign fix for evap computation in exf_getffields.F
2883      - updated verification/global_with_exf/results/output.txt
2884    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2885      (SBO) core products, including oceanic mass, center-of-mass,
2886      angular, and bottom pressure (see pkg/sbo/README.sbo).
2887    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2888      to avoid negative values in shallow regions.
2889      - updated verification/natl_box/results/output.txt
2890      - updated verification/lab_sea/results/output.txt
2891    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2892    o Added useSingleCpuIO option (see PARAMS.h).
2893    o Updated useSingleCpuIO option in mdsio_writefield.F to
2894      work with multi-field files, e.g., for single-file pickup.
2895    o pkg/seaice:
2896      - bug fix in growth.F: QNET for no shortwave case
2897      - added HeffFile for specifying initial sea-ice thickness
2898      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2899    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2900      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2901    o pkg/seaice:
2902      - adjoint-friendly modifications
2903      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2904    
2905    checkpoint48e_post
2906    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2907    o dynamics: change definition of computational domain & adapt mom_fluxform
2908      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2909    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2910        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2911        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2912        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2913        inverted_barometer solid-body.cs-32x32x1
2914      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2915    
2916    checkpoint48d_post
2917    o in preparation for r*:
2918     a) use pre-computed gradient of hydrostatic potential:
2919        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2920     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2921        => affects results of glob_oce_pressure (different truncation error)  
2922      update output.txt of ideal_2D_oce & global_ocean_pressure
2923    
2924    checkpoint48d_pre
2925    o in preparation for r*:
2926      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2927      pass the 2 comp. of the grad. as arguments to momentum S/R.
2928      but for the moment, only used if it does not change the results.
2929    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2930    
2931    checkpoint48c_post
2932    Modifications in treatment of initial flux forcing controls
2933    to avoid extra storing of flux fields.
2934    
2935    checkpoint48c_pre
2936    o Added tidal_basin_2d experiment (currently 1D!)
2937    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2938    
2939    checkpoint48b_post
2940    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2941     (modification to pressure gradient not yet implemented)
2942    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2943      (for U & V) that are used for vertical advection of momentum.
2944    
2945    checkpoint48a_post
2946    o In preparation for r*, use temp. array to compute vertical transport
2947       in flux-form momentum pkg. => change results of few test-exp.
2948      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2949                        lab_sea, natl_box & plume_on_slope
2950    
2951    checkpoint48
2952    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2953    
2954    checkpoint47j_post
2955    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2956    o moved adexch from forward_step to addummy_in_stepping
2957    o added exch in ctrl_map_...
2958    o aveFreq.=0. at end of cost_final to avoid overwrite in
2959      reverse checkpointing loop
2960    o Yet more changes in gmredi:
2961      * adgmredi_calc_tensor
2962        avoiding all recomputation of gmredi_slope_limit
2963      * adgmredi_x/y/rtransport
2964        added flag for excessive storing to avoid recomp. of
2965        u/v/rtans, dTdx/y/z
2966        -> this is not really necessary and very memory-consuming
2967      * adgmredi_slope_psi:
2968        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2969      * gmredi_slope_limit
2970        re-activated full calculation of taperfct for case 'ac02'
2971    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2972    
2973    checkpoint47i_post
2974    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2975    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2976      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2977    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2978    o gmredi: fix few bugs.
2979    
2980    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2981    This will be a good checkpoint to plug into the ecco-branch.
2982    o few modif.'s to get latest version adjointed
2983      (mainly kick out code in ini_linear_phisurf)
2984    o modif's to run adjoint with exactConserv
2985    o case GM_BOLUS_ADVEC should be cleaned
2986      S/R gmredi_slope_psi should be cleaned
2987    o verification/carbon now has exactConserv=.TRUE.
2988    
2989    checkpoint47g_post
2990    o time-average AIM output: becomes independent from statvars time-average
2991      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2992    o After TAF bug fix:
2993      Tested adjoint of gmredi package.
2994      Tests were done with checkpoint47 rather than with latest
2995      checkpoint47f_post since the latter is broken for the adjoint
2996      verification/carbon/ contains both ADM and TLM gradient checks.
2997    Here they are, before they get changed/lost/stolen.
2998    Mostly modif.'s to fix numerical sensitivities.
2999    Gradient checks OK for
3000    - GM_taper_scheme:
3001      * clipping
3002      * ac02
3003      * linear
3004      * glw91
3005      * dm95
3006      * ldd97
3007    - GMREDI_OPTIONS:
3008      * GM_VISBECK_VARIABLE_K
3009      * GM_NON_UNITY_DIAGONAL
3010      * GM_EXTRA_DIAGONAL
3011      * GM_BOLUS_ADVEC
3012    in conjunction with data.gmredi parameters to be checked in
3013    in a few minutes under verification/carbon/code/
3014    
3015    checkpoint47f_post
3016    Merging from release1_p10:
3017    o modifications for using pkg/exf with pkg/seaice
3018      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
3019        and SEAICE_EXTERNAL_FLUXES
3020      - pkg/exf CPP options EXF_READ_EVAP and
3021        EXF_NO_BULK_COMPUTATIONS
3022      - usage examples are Experiments 8 and 9 in
3023        verification/lab_sea/README
3024      - verification/lab_sea default experiment now uses
3025        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
3026    
3027    checkpoint47e_post
3028    o created a tag prior to creating a branch
3029    
3030    checkpoint47d_post
3031    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
3032      at the bottom boundary had an erroneous half slip boundary condition
3033    o added bottom drag and no slip boundary condition capabilities to
3034      oceanic pressure coordinates code
3035    o added new verification experiment global_ocean_pressure, this experiment is
3036      also described in the tutorial section of the manual
3037    checkpoint47d_pre
3038    
3039    checkpoint47c_post
3040    o Added a verification experiment for a global cubed-sphere ocean run
3041      -  verification/global_ocean.cubed32x32x30
3042      -  uses pkg/therm_seaice and pkg/bulk_forcing
3043    
3044    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
3045    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
3046      when using P-coordinate; only implemented for atmospheric config.
3047    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
3048      NOTES: requires option NONLIN_FRSURF to be "#define".
3049    o update advect_xz/results/output.txt (left from checkpoint44g_post)
3050    
3051    checkpoint47b_post
3052    Merging from release1_p9:
3053    o pkg/seaice
3054      - removed GOTO's and added taf directives
3055      - double precision constants to reduce the g77 (Linux)
3056        to F77 (SGI) differences reported in release1_p8
3057    o tools/genmake
3058      - added SGI options
3059    o verification/testscript
3060      - updated to that of checkpoint47a_post
3061    o verification/global_ocean.90x40x15/input/eedata
3062      - modified for SGI f77 compatibility
3063    o verification/lab_sea
3064      - added description of sea-ice model
3065      - added missing matlab routines
3066      - added test of thermodynamics parallelization
3067    
3068    checkpoint47a_post
3069    o new pkg: aim_v23
3070     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
3071       for now, keep the same surface forcing as before.
3072     - Part-Cell implemented into AIM; check that Heat & Water are conserved
3073     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
3074     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
3075    o add diagnostic of surface correction term in monitor output
3076    
3077    o bulk_force and therm_seaice
3078    - Two packages:  bulk_force (Bulk forcing)
3079      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
3080    - Earlier integration from Stephaine Dutkiewicz
3081      and Patrick Heimbach.
3082    - Two ifdef statements for compile time,
3083       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
3084    
3085    checkpoint47
3086    differentiable version of checkpoint46n_post
3087    o bug fix in quasihydrostaticterms
3088    o * "clean" adjoint code (in terms of extensive recomputations)
3089        can now be obtained for all GMREDI options (i.e. for
3090        - GM_VISBECK_VARIABLE_K
3091        - GM_NON_UNITY_DIAGONAL
3092        - GM_EXTRA_DIAGONAL
3093        - GM_BOLUS_ADVEC )
3094      * However, wrong gradient check problem remains unsolved.
3095      * New CPP options have been introduced for different
3096        tapering schemes
3097    o external_fields_load now part of differentiation list
3098    o pressure needs multiple storing;
3099      would be nice to have store_pressure at beginning or
3100      end of forward_step, e.g. by having phiHyd global (5-dim.)
3101      (NB: pressure is needed for certain cases in find_rho,
3102      which is also invoked through convective_adjustment).
3103    o recomputations in find_rho for cases
3104     'JMD95'/'UNESCO' or 'MDJWF' are OK.
3105    o #define ATMOSPHERIC_LOADING should be differentiable
3106    o ini_forcing shifted to begining of initialise_varia
3107    o Incorporating QNVS line search routines into MITgcm
3108      (this is separate code, and therefore not under pkg)
3109      lsopt/, optim/
3110    o Updated verification/carbon/
3111      - #define GM_VISBECK_VARIABLE_K
3112      - GM_taper_scheme    = 'ldd97'    
3113    
3114    checkpoint46n_post
3115    Merging from release1_p8:
3116    o verification/natl_box:
3117      updating new external_fields_load routine
3118    o New package: pkg/seaice
3119      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
3120      The sea-ice code is based on Hibler (1979-1980).
3121      Two sea-ice dynamic solvers, ADI and LSR, are included.
3122      In addition to computing prognostic sea-ice variables and diagnosing
3123      the forcing/external data fields that drive the ocean model,
3124      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
3125      The implied surface heat flux is then stored in variable
3126      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
3127      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
3128      non-local transport term.  Because this call precedes model
3129      thermodynamics, temperature under sea-ice may not be "exactly" at
3130      the freezing point by the time theta is dumped or time-averaged.
3131      N.B.: fairly large differences in accuracy occur across
3132            different platforms/compilers; comparison between
3133            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
3134            generated output gives:
3135       T           S           U           V
3136      C D M    c        m  s        m  s        m  s        m  s
3137      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
3138      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
3139      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
3140    
3141      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
3142    o GAD:
3143      - generated new common blocks to account for call of
3144        same gad routines with differing traceridentities
3145        (needed to modify tracerIdentity indices in GAD.h)
3146      - generated separate common blocks for case useCubedSphereExchange
3147        (Department of Futurology)
3148      - parameter lists to gmredi_?transport: added tracerIdentity
3149      - added new key indices to tamc.h
3150    o external_fields_load:
3151      - added this routine to TAF list
3152      - needed to make some common blocks global and additional storing
3153        along the same lines as exf package (checkpoint_lev?_directives.h)
3154    o exf:
3155      updated external forcing package
3156      - bug fixes carried over from ecco-branch
3157        (missing OBCS_OPTIONS.h in two routines)
3158      - enable easy to use "no forcing".
3159      - added exf I/O for atmospheric loading
3160      - added exf I/O for runoff data
3161      - transfered scaling between exf <-> MITgcm to exf namelist
3162    o Adding new verification experiment global_with_exf.
3163      This verification experiment is almost identical to the
3164      global_ocean.90x40x15 experiment, except that it uses
3165      the exf (and cal) package instead of the
3166      external_fields_load routine (cf README file).
3167    
3168    checkpoint46m_post
3169    o modified testscript to return -- when there are no lines of "%MON" output
3170    o added new flag "quasiHydrostatic" for QH mode
3171      and new routine quasihydrostaticterms()
3172    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
3173      New routine: mom_u_coriolis_nh()
3174    o fixed sign of non-hydrostatic metric terms in u and v equations.
3175      Depend on correct sign of gravitySign.
3176    o added work.pc* to .cvsignore in aim directories using ifc
3177    o introduced flag for controllin non-hydrostatic metric terms
3178    o removed gravitySign from PARM04
3179    o switched to g77/ifc from pgf77 in aim experiments
3180    
3181    checkpoint46l_post
3182    o made convective adjustment work with pressure coordinates:
3183     - changed the direction of k-loop in convective_adjustment.F for the
3184       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
3185     - adjusted the reference pressure k-index in convective_adjustment.F
3186     - adjusted the convection condition in convect.F (in analogy to
3187       calc_ivdc.F)
3188     - convective_adjustment no longer computes anything on the halos
3189     - removed the warnings about negative salinity from find_rho.F and
3190       find_alpha.F; instead the new routine look_for_neg_salinity, called
3191       at the beginning of find_rho, find_alpha, and find_beta, does a
3192       check of the entire slice, if CPP-option
3193       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
3194    checkpoint46l_pre
3195    
3196    checkpoint46k_post
3197    o fixed the verification/global_ocean.90x40x15 experiment:
3198     - new bathymetry (the world according to A., JMC, and M.)
3199     - new initial fields and forcing fields (*.bin files)
3200     - new POLY3.COEFFS (for the next release one should switch to a full
3201       equation of state: JMD95P or MDJWF)
3202     - fixed several errors and redundancies in the data file
3203     - experiment uses looped cells
3204     - added matlab directory with diagnostic scripts for plotting of output
3205    
3206    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
3207     - read AIM physics parameters from a file (data.aimphys)
3208     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
3209    
3210    checkpoint46j_post
3211    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
3212    o move wVel computation at the end of the time step, in S/R integr_continuity
3213    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
3214    o update timeave pkg for wVel diagnostic.
3215    checkpoint46j_pre
3216    
3217    checkpoint46i_post
3218    o Clean up AIM package (and keep the results unchanged):
3219      include CPP_OPTION and use IMPLICT NONE in all routines ;
3220      declare all the variables _RL ; use _d 0 for all numerical constants.
3221      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
3222    
3223    checkpoint46h_post
3224    o cleaned up the use of rhoNil and rhoConst.
3225      - rhoNil should only appear in the LINEAR equation of state, everywhere
3226        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
3227        and the dynamical equations are all divided by rhoConst
3228    o introduced new parameter rhoConstFresh, a reference density of fresh
3229      water, to remove the fresh water flux's dependence on rhoNil. The default
3230      value is 999.8 kg/m^3
3231    o cleanup up external_forcing.F and external_forcing_surf.F
3232      - can now be used by both OCEANIC and OCEANICP
3233    checkpoint46h_pre
3234    
3235     Added code to convert surface volume flux (fresh water) into
3236     a mass flux when using P coordinates in the ocean (OCEANICP).
3237     Note: It assumes you have set rho0=rhoConst=density of fresh water.
3238    
3239    checkpoint46g_post
3240    o Include a new diagnostic variable phiHydLow for the ocean model
3241      - in z-coordinates, it is the bottom pressure anomaly
3242      - in p-coordinates, it is the sea surface elevation
3243      - in both cases, these variable have global drift, reflecting the mass
3244        drift in z-coordinates and the volume drift in p-coordinates
3245      - included time averaging for phiHydLow, be aware of the drift!
3246    o depth-dependent computation of Bo_surf for pressure coordinates
3247      in the ocean (buoyancyRelation='OCEANICP')
3248      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
3249        Theta, Salinity, and Pressure in the parameter list. This routine is
3250        presently contained in find_rho.F. This routine does not give the
3251        correct density for 'POLY3', which would be a z-dependent reference
3252        density.
3253    o cleaned up find_rho
3254      - removed obsolete 'eqn' from the parameter list.
3255    o added two new verification experiments: gop and goz
3256      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
3257    checkpoint46g_pre
3258    
3259    checkpoint46f_post
3260    o Enable tangent linear (forward mode) gradient checks:
3261      - extended active file handling to g_... files
3262      - added TANGENT_SIMULATION to theSimulationMode
3263      - extended grdchk package accordingly
3264    o added tangent linear setup in verification/carbon/code_ftl
3265    o added adjoint setup in verification/front_relax/code_ad
3266    
3267    checkpoint46e_post
3268    o Added new equation of state -> MDJWF
3269      - EOS of McDougall et al., 2002, JAOT, submitted
3270      - caveat: the equation of state is only valid for a smaller (more
3271        realistic?) range of values than JMD95P/Z and UNESCO
3272      - added masks to the calculation of pressure in store_pressure
3273      - added more check values for density in check_eos (ini_eos.F), some of
3274        the old check values are out of the range of the MDJWF-eos, so don't
3275        expect perfect matches for those
3276    checkpoint46e_pre
3277    
3278    checkpoint46d_post
3279    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
3280      'OCEANICP', also initialised field pressure correctly in ini_eos in the
3281      case of pressure coordinates. eosType='JMD95Z' in
3282      combination with buoyancyRelation='OCEANICP' now causes an error.
3283    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3284      in find_alpha/beta.
3285    checkpoint46d_pre
3286    
3287    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3288      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
3289    
3290    checkpoint46c_post
3291    o Changes necessary for ocean in p-coordinates
3292     -  Added new buoyancy relation = 'OCEANICP'
3293     -  Added new parameters = gravitySign (this used to be contained inside
3294        the factor dRdZ which I added when we first switched to R coordinates).
3295     X GM/Redi is not compatible (yet)
3296     X bottom drag and no-slip need to be debugged.
3297    checkpoint46c_pre
3298    
3299    checkpoint46b_post
3300    o Added new equation of state -> JMD95Z and JMD95P
3301      - EOS of Jackett and McDougall, 1995, JAOT
3302      - moved all EOS parameters into EOS.h
3303      - new routines ini_eos.F, store_pressure.F
3304    o Added UNESCO EOS, but not recommended because it requires
3305      in-situ temperature (see JMD95)
3306    o Modified formatting for knudsen2.f in utils/knudsen2 and added
3307      unesco.f to be used with POLY3
3308    checkpoint46b_pre
3309    
3310    checkpoint46a_post
3311    o Added (atmospheric) pressure loading
3312      - new field in FFIELDS.h, etc...
3313      - new cpp flag ATMOSPHERIC_LOADING
3314    o Changed hFacC to _hFacC in calc_phi_hyd.F
3315    o Added SHORTWAVE_HEATING to some files for consistency
3316    checkpoint46a_pre
3317    
3318    checkpoint46
3319    further merges from release1_p5
3320    o new ctrl package
3321      - adopted from ECCO environment to enable optimization
3322      - added Eliassen Palm fluxes to controls
3323    o added Eliassen Palm flux controls to gradient check package
3324    o cost package
3325      - Compatible with new ctrl package
3326      - added Eliassen Palm cost hooks
3327      - modif's of existing cost functions
3328    o Adjoint-related bug fixes in kpp:
3329      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
3330      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
3331    o autodiff package
3332      - flow directives:
3333        + new for S/R do_the_model_io
3334        + enhanced for S/R checkpoint
3335        + new gmredi.flow
3336      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
3337        disable adcommon.h/g_common.h by default.
3338      - fixed problem for adjoint of global_max
3339    o modified verification/carbon/
3340    o New setup for adjoint of global_ocean
3341    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
3342    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
3343    o incorporated hooks for sponge layer code (external_forcing.F)
3344    
3345    checkpoint45d_post
3346    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
3347    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
3348      (affects plume_on_slope "cg2d" output)
3349    o add new parameter deltaTfreesurf for free-surface time stepping
3350    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
3351    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
3352    o change phiMin in exp1 (to agree with documentation)
3353    o add new flags:
3354     - T,S forcing inside/outside Adams-Bashforth
3355     - turn off temp,salt advection and/or forcing
3356     - for each tracer, define internal flag for multiDimAdvection & A-B
3357    o monitor: change definition of KE to check conservation of Energy
3358    
3359    checkpoint45c_post
3360    o Removed f90 comments ("!")
3361    o Modified initialisations to enable exf package for MITgcm
3362      (without invoking ECCO_PACKAGE).
3363    o modifications to gradient check package (Martin Losch)
3364      - enable centered differences
3365      - modified format of standard output
3366    
3367    checkpoint45b_post
3368    o cleaned exchange calls in cg2d
3369    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
3370    o included CPP option SINGLE_LAYER_MODE in thermodynamics
3371      to configure barotropic setup (Martin Losch)
3372    o moved some initialisations within bi,bj loop in dynamics
3373      (TAF flow dependency)
3374    o in initialise_varia, moved call packages_init_variables
3375      before convective_adjustment_init
3376      (corresponding adjustment of TAF tape initialisation).
3377    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
3378    
3379    checkpoint45a_post
3380    o compute Rho over the whole domain (extend iMin,jMin indices)
3381    o specific exchange for X-slice domain (case Ny=1)
3382    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
3383    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
3384    
3385    checkpoint44h_post = checkpoint45
3386    o Fix to restore differentiability:
3387      place at which packages_init_variables is called in
3388      initialise_varia is crucial for reverse control flow.
3389    o modifications in GMRedi to enable stable adjoint
3390      (corresponding modif's in thermodynamics, dynamics)
3391    o added missing hook for sponge layer code in external_forcing
3392    o modified test cost functions
3393    o storing in gad_advection (plus removal of write(0,*)!
3394    o missing headers TR1.h added in convective_adjustment routines
3395    o errorMessageUnit set non-equal zero in eeboot
3396      (conflict on some platforms, e.g. IBM SP3)
3397    o modified carbon verif.
3398    
3399    checkpoint44h_pre
3400    o vertical grid option: allow to put the Interface at the middle between
3401      2 cell-centers ; replace delZ in pkg/kpp by drF.
3402    o GM Advective form: Tracers are advected using the residual transport (=
3403      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
3404    
3405    checkpoint44g_post
3406    o fix surface correction term in multiDimAdvection (affects plume_on_slope
3407      results) ; ifdef missing in thermodynamics.F
3408    
3409    checkpoint44f_pre,checkpoint44f_post
3410    o added PTRACERS package
3411      This allows an arbitrary number of passive tracers to be integrated
3412      forward simultaneously with the dynamicaly model.
3413      + Implemented so far:
3414        - basic forward algorithm (time-stepping, advection, diffusion, convection)
3415        - I/O and checkpointing
3416        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
3417      + Not implemented so far:
3418        - KPP
3419        - OBCS
3420      + No specific example supplied (yet) but global_ocean.90x40x15 has the
3421        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
3422        line in data.pkg.
3423      + This package is disabled by default since it increases storage.
3424    
3425    
3426    o testscript: added -cleanup option
3427    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
3428                 b) enable to filter 2D fields.
3429    
3430    checkpoint44e_pre,post
3431    o re-wrote convective adjustment to use pre-calculated weights
3432      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
3433      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
3434      Original calls to convect() still in place.
3435    
3436    chkpt44d_pre,post
3437    o added missing EXCLUDE_MONITOR flags
3438    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
3439      (incompatible typ in MIN/MAX expressions caused problems
3440      on IBM SP3)
3441    o in genmake added variable MAKEDEPEND
3442      plus resetting for case SunOS
3443    o added timer_stats.c routine for IBM SP3
3444    o removed variables in dynamics
3445    !!! I forgot to create tag chkpt44d_pre !!!
3446    !!! But chkpt44d_pre = chkpt44c_post    !!!
3447    
3448    o real fresh water flux implemented with non-linear free-surface.
3449    
3450    chkpt44c_pre,post
3451    o few fix (mask in shap_s2, EmPmR in external_field_load,
3452      USE_NATURAL_BCS in solve_for_P);
3453    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
3454    
3455    checkpoint44b_pre/_post
3456    o merge of relevant stuff from the ecco-branch:
3457      - genmake: removed $S64 overwrite for case SunOS
3458      - pkg/exf: update and corrections for field swapping and obcs
3459      - pkg/ecco: parameter lists for the_model_main, the_main_loop
3460                  harmonized between ECCO and MITgcm
3461      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
3462                      updated checkpointing_lev... lists for obcs
3463      - model/src: minor changes in forward_step, plot_field
3464                   added directive for divided adjoint in the_main_loop
3465      - pkg/mdsio: added mdsio_gl_slice
3466    
3467    o check parameters & config (chkpt44a_pre,post)
3468    o OBC and NonLin_FrSurf.
3469    
3470    checkpoint44
3471    o fix bug in mom_vi_del2uv
3472    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
3473    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
3474    o update AIM experiments (NCEP input files)
3475    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
3476    o added some stuff for AD
3477    
3478    checkpoint43
3479    o added two new advection tests
3480    o added global 4x4 degree ocean test
3481    o added test of H&S94 with free surface on cube
3482    o some final mods for gradient check, adjoint,...
3483    
3484    checkpoint42
3485      Fixed AD-related problems:
3486    o Store directives up-to-date with re-arranged Adams-Bashforth
3487      (mainly thermodynamics.F)
3488    o New store directives for multi-dim. advection schemes
3489      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
3490      * new common block and key passkey
3491      (mainly gad_advection.F)
3492    o Modified store directives for split of dynamics/thermodynamics
3493      for the case ALLOW_KPP
3494    o Cleaned argument list for timestep_tracer.F
3495    
3496    checkpoint41
3497    o re-formatted/added comments in prologues of key subroutines
3498      to work with protex
3499    
3500    checkpoint40
3501    o moved calc_gs, calc_gt and calc_tr1 back to model/src
3502    o added FLT (floats) package from Arne along with demo. experiment
3503    o re-arranged Adams-Bashforth scheme for tracers to allow easier
3504      implementation of forward-in-time forcing terms
3505    o more mods for non-linear free-surface including new variable
3506    o modified multi-dim method to work on cube
3507    o bug fix in KPP (from DM)
3508    
3509    checkpoint40pre9
3510    o added DST advection schemes
3511    o fix MPI bug on SGI's
3512    o modifications for non-linear free-surface
3513    o fixed conditionals for fixed flow/passive tracer only mode
3514    o added tension/strain form of stress tensor
3515    o changes to commenting of arguments for TAF/TAMC
3516    o added/updated many matlab scripts
3517    o added multi-dimensional advection method for tracers
3518      
3519    checkpoint40pre8
3520    o new package rw/
3521      Added method for dumping intermediate local arrays:
3522      mdsio_writetile - same as mdsio_writefield except works from inside
3523                        bi,bj loop
3524      mdsio_writelocal - same as mdsio_writetile except works for local
3525                         arrays
3526      write_local_r? - higher-level wrapper for mdsio_writelocal
3527      Controlled by diagFreq. Defaults to zero (ie. no dumps)
3528      Example given at end of mom_vecinv.F that dumps some local arrays.
3529    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
3530      control flux-form versus vector invariant code.
3531      Switch is runtime flag vectorInvariantMomentum (defaults to false)
3532      or genmake -DISABLE ...
3533    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
3534      (additional storing is now needed for case vecinv;
3535      currently nothing implemented to switch this storing off
3536      in case fluxform is used since no CPP flag available).
3537    
3538    checkpoint40pre7
3539    o bug fix in dynamics.F
3540      calc_viscosity called before k=1,Nr loop.
3541    o added some #ifdef's ALLOW_PASSIVE_TRACER
3542    o cleaned initialisations in ctrl_map_ini
3543      related to TAF
3544    
3545    checkpoint40pre6
3546    o split dynamics into thermodynamics & dynamics
3547    o corresponding split of calc_diffusivity into
3548      calc_diffusivity, calc_viscosity
3549      (kpp_calc_diff, kpp_calc_visc).
3550    o Added diffkr, kapgm to control variables
3551    o bug fix in gmredi_slope_limit for ldd97
3552    
3553    checkpoint40pre5
3554    o proper initialization of Adams-Bashforth time stepping
3555      + uses forward step for very first step of model (iter=0)
3556    o re-generated *all* output since almost all output is modified by this
3557      change (sorry but we've been putting this one off for about 2 years)
3558      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
3559        *not* regenerated since they are already out of date and I don't
3560        want to create the impression that they are suddenly working.
3561    o removed KAP stuff for DEC's
3562    o modified/added many .cvsignore files in */code and */input
3563    o added new expt "solid-body.cs-32x32x1"
3564      + this uses an alternative form of ini_curvilinear_grid.F which
3565        is not necessarily any better than the current one...
3566    
3567    checkpoint40pre4
3568    o added re-initialisations of utrans,vtrans,rtrans in
3569      calc_common_factors which are crucial for TAF.
3570    o extended iMin,jMin range for calc_common_factors,
3571      calc_diffusivity
3572    o added option ALLOW_PASSIVE_TRACER
3573    o a few minor updates and fixes
3574    
3575    checkpoint40pre3
3576    o created calc_gtr1.F for gad package
3577    o split the_main_loop and re-introduced forward_step
3578    o some recomputations of nIter0 for TAMC
3579    
3580    checkpoint40pre2
3581    o Updated to latest branch of AJA, JMC
3582    o Added gradient check package
3583    o Added routines for passive tracer handling
3584    o Added carbon sequestration sensitivity experiment
3585    
3586    checkpoint39
3587     o Modifications and fixes to support TAMC
3588       (mainly missing or wrong directives)
3589     o Corrected common blocks when fooling TAMC to produce adjoint I/O
3590       in addummy_in_stepping
3591     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
3592     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
3593     o Included following packages:
3594       cal: calendar
3595       exf: external forcing
3596       ecco: essential routines to control use of cal, exf
3597             (NB: this is not the full ECCO environment)
3598     o disabled some packages by default in genmake
3599    
3600  checkpoint38  checkpoint38
3601   o see notes_c37_adj.txt   o see notes_c37_adj.txt
3602   o corrected wrong layer index in external_forcing_t   o corrected wrong layer index in external_forcing_t

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