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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.957 by mlosch, Wed Feb 13 07:43:39 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 genmake2: replace (4 times)
8         make genmake_tc_1.o >> genmake_warnings 2>&1
9      with
10         COMM="$CC $CFLAGS -c genmake_tc_1.c"
11         echo $COMM >> genmake_warnings
12         $COMM >> genmake_warnings 2>&1
13      to make genmake2 always see the value of CC as specified in the optfile.
14    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
15      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
16      - modify verification advect_cs test to test SOM-advection on CS-grid.
17    o pkg/ctrl:
18      - Rewrite of ctrl_map_ini_ecco.F,
19        introducing a generic routine (ctrl_map_ini_gen.F).
20      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
21    
22    checkpoint59n
23    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
24      number in dedicate array "hdiag":
25      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
26        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
27      - many small changes (integer format) for large number of diagnostics
28      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
29        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
30    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
31      usingSphericalGrid, this allows to define the rotated grid coordinates
32      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
33      geographical coordinates according to the inverse of the rotation defined
34      by the Euler angles, so that Coriolis parameter and online-interpolation by
35      exf works with the geographical coordinates on XC/YC/XG/YG.
36      Naturally, this feature does not work with all packages, so some
37      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
38      profiles), because there the coordinates are assumed to be regular
39      spherical grid coordinates.
40    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
41      - introduce isopycnal diffusion coefficient control.
42    o tools/adjoint_options:
43      - additional control vector components.
44    o pkg/mnc: have mnc create marginally meaning full coordinate variables
45      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
46    o pkg/mypackage:
47      - add example of read/write pickup for state-var ;
48      - add entry points to the main code for state-vars diags & write-pickup.
49    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
50      transitions for useExfYearlyFields
51      - add new subroutine that determines the file to read from for
52        use*YearlyFields = .TRUE. and .FALSE.
53      - add a verification experiment to global_with_exf that tests
54        useExfYearlyFields with USE_EXF_INTERPOLATION defined
55    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
56      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
57      subroutines (which could be generated from a template, because they are
58      almost identical), for now they are included in obcs_prescribe_read.F for
59      simplicity
60    o pkg/exf:
61      - add a little more diagnostic to exf_interp_read (in analogy to
62        mds_read_field, can be turned off with debugLevel < debugLevA=1)
63      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
64        ugly but fast by unrolling short inner loops, inserting a unroll=8
65        directive in routine lagran, and splitting a loop and making do while the
66        outermost loop (the latter requires the intoduction of index arrays)
67    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
68    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
69      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
70    o verification/seaice_obcs: updated for restart test and latest options
71    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
72      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
73      for now this is only available for the C-grid code and also within
74      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
75    
76    checkpoint59m
77    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
78      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
79    o gad_som : fix flux output (& diagnostics) to have same units as other  
80      advection scheme fluxes (was previously multiplied by deltaT).  
81    o added verification/seaice_obcs both to test seaice open boundaries
82      and to provide an example matlab scrpt for generating them
83    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
84    o pkg/salt_plume: clean up salt_plume_frac.F to
85      remove redundancy in PlumeMethod 1 and 4
86    o pkg/kpp: added saltplume diagnostics
87    o pkg/obcs and pkg/seaice:
88      - do not set uice and vice to zero when OB*icefile are unspecified
89      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
90      - moved seaice tracer obcs after call to seaice_growth
91    o pkg/salt_plume: added various options for salt plume depth
92      criterion and for vertical distribution of the salt
93    
94    checkpoint59l
95    o pkg/ptracers: new version of ptracers pickup:
96      read meta file and write only fields which are needed to restart.
97      ( same logic as main pickup file ; also using pickupStrictlyMatch )
98    o pkg/seaice:
99      - add timescale for melting due to warm mixed layer as a means of
100        setting SEAICE_availHeatFrac more conveniently
101      - add a CPP-flag/runtime parameter check for flooding algorithm
102      - reformulated availHeat in seaice_growth.F to be independent of AREA
103    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
104      unit changes
105    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
106    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
107      SX vector computer.
108    o pkg/seaice:
109      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
110        seaice forcing fields can now be read only through pkg/exf
111      - removed some unused halos
112    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
113    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
114      or U/VICE from U/VWIND before computing U/VSTRESS
115    
116    checkpoint59k
117    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
118      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
119    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
120      all experiments pass when compile with un-initialised var. checking option.
121    o added pkg/salt_plume
122    o script to test restart (for now, in MITgcm_contrib/jmc_script)
123    o pkg/seaice: new read/write pickup version.
124      read meta file and write only fields which are needed to restart.
125      ( same logic as main pickup file ; also using pickupStrictlyMatch )
126    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
127    o lab_sea.hb87: modify the domain & update output.hb87.txt :
128      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
129      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
130      process. Fixed here by closing the domain at the Northern boundary.
131    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
132    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
133      a set of consecutive levels in/from a 3-D array.
134    o pkg/ptracers:
135      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
136      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
137    
138    checkpoint59j
139    o in pkgs: dic, obcs, offline, rbcs:
140      standard way to compute coeff. for time interpolation between 2 time reccords
141      which retains full precision (& make results less dependent on compiler).
142      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
143    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
144      packages instead of reading ice cover and wind speed separately
145    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
146     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
147      to allow to compile customized code before the update)
148    o cleaning-up:
149      - fix CPP instruction syntax in pkg/obcs
150      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
151        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
152      - fix some threads issue in IO parts.
153    o pkg/dic:
154      - add tons of "_d 0" (--> much better testreports !)
155       and then update outputs of tutorial_global_oce_biogeo
156    o pkg/mom_fluxform:
157      add a special version of momentum advection intended to conserve momentum
158      next to a bathymetry step or a coastline edge. (default = off = #undef)
159    o new read/write pickup version:
160      - for now, only implemented for main (mdsio) pickup file.
161      - write out only what is needed to restart; merge pickup_nh , pickup_ph
162        and main pickup together.
163      - read meta file; read only what is needed to restart; stop if a field
164        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
165        if it make sense (even if the restart is not perfect).
166      - if no meta file, assume that pickup to read corresponds exactly to
167        a pickup that would currently be written.
168      - read pickup written in the old format (until checkpoint59i) if it
169        recognizes an old meta file (no field-list).
170      - add a meta file in exp. which starts from a pickup: 2 cases:
171        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
172         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
173        b) a meta file describing the content of the associated pickup file
174         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
175    o pkg/mdsio & pkg/rw:
176      - new routine to read a meta file ; new set of routine to read
177        Multiple-fields file (with meta file).
178    o added open boundary conditions capability for seaice
179        HSNOW, HSALT, UICE, and VICE
180    
181    checkpoint59i
182    o adjoint:
183      * fix multiDimAdvection adjoint
184        (partial recomputation problem by TAF for fVerT(:,:,kDown)
185        and comlev1 size definition (maxpass vs. max. number of tracers)
186      * verification/global_ocean.90x45x15 adjoint now tests
187        NLFS and multiDimAdvection using DST3 (=30)
188      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
189    o pkg/kpp: add "_d 0" to real constant (if missing);
190      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
191      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
192    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
193      for internal parameters related to restart process (formerly from PARAMS.h)
194      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
195    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
196      as argument. (only atm2d & obcs write_pickup have not yet been updated)
197    o pkg/monitor:
198      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
199      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
200      - account for deep Atmosphere factor and density factor (anelastic)
201    o added open boundary conditions capability for seaice HEFF and AREA
202    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
203      thermodynamics
204      - requires a little reorganization, which affects the testreport results
205        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
206        so that now the conservative form is tested
207      - add a few comments
208    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
209    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
210    o add new diagnostics to seaice: advective, diffusive fluxes (only for
211      multidim-advection, for scheme 2 they are not filled) and transports,
212      thermodynamic growth rates
213    o change units of EmPmR (inside the code, + within coupling interface)
214      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
215      Affects results @ truncation level (cg2d match) and update output of
216       experiments: lab_sea(6), global_ocean.90x40x15(10),
217      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
218      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
219      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
220      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
221    
222    checkpoint59h
223    o pkg/exf:
224      - improve vectorization by moving if-statement out of loops in
225        exf_mapfields, exf_radiation
226      - exf_bulkformulae.F: introduce 2D fields and vectorize code
227    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
228    o testreport:
229      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
230        monitor & update offline_exf_seaice exp. output.
231      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
232    o pkg/seaice:
233      - bug fix in the evp solver: boundary conditions were affected be
234        masking of zMax/zMin (changes results)
235      - minor bug fix in boundary conditions in seaice_calc_strainrates
236        (changes results for no_slip)
237      - seaice_lsr.F: make interpolation of eta dependent on boundaries
238      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
239      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
240        stress formulation and no-slip boundary conditions
241    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
242      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
243    o pkg/seaice: a first HSALT time stepping equation has been checked in
244    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
245      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
246      without requiring DO-IF statements
247    o pkg/thsice:
248      use continuous power-law function for partition of energy between lateral
249      melting/freezing and thinning/thickening ; old code using step function
250      still available with #undef THSICE_FRACEN_POWERLAW
251      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
252    o testreport: change AD testing : check against results/output_adm.txt
253      using same scripts as for forward test.
254    
255    checkpoint59g
256    o adjoint testing: in preparation for changing testreport:
257      - output format: cost and grad written on separated lines
258      - ad output results in directory "results" (instead of "results_ad")
259    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
260    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
261    o pkg/ecco: allow user defined cost function contributions
262    o testreport:
263      Allow to choose (per experiment) the list of tested output variables
264       and the main variable (used to issue a pass/FAIL ) ;
265      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
266      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
267      Also modify printing of summary:
268       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
269       b) echo the list of tested variables in the individual summary.txt of
270          each experiment.
271    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
272      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
273      (but still depend on the tile decompostion of the domain).
274    o pkg/seaice: change a discretization detail to make the B-grid code
275      "more symmetric". This change is likely to remove all "ridges/leads" that
276      where quasi-aligned with the grid in B-grid solutions. It may also be
277      the solution to the stress coupling issues with the B-grid.
278    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
279      remove .cvsignore from input dir. (since testreport no longer run here).
280    o pkg/thsice:
281     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
282     - fix reshaping of sea-ice just after advection:
283       melt all the ice only if ice-volume is too small.
284     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
285       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
286     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
287    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
288      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
289    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
290      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
291      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
292      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
293      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
294      -> update output.txt
295    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
296     this affects truncation error: -> update output.txt of exp:
297      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
298      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
299    
300    checkpoint59f
301    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
302    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
303      a bounded range (in forward mode)
304    o pkg/ecco, ctrl, autodiff and mom_common:
305     internal parameter controls, completements of implementations
306    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
307    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
308      (not seem any difference in testing results).
309    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
310       at face corners.
311    o pkg/generic_advdiff:
312     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
313      loop range indices for computing vertical advection tendency
314      and do the calculation in the interior only (no overlap) ;
315      for now, only implemented for SOM advection (to save CPU time).
316     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
317    o exch2 adjoint
318      First set of changes:
319      - add exch2 hand-written adjoint templates
320      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
321        This will require cleanup in pkg/autodiff/*.F
322        (changed routines currently kept separate in verif. code/)
323      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
324        that used to hide exch2 or cubed-sphere specific code
325        (commented via 'cph-exch2')
326    o pkg/seaice
327      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
328    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
329       output of global_ocean.cs32x15.thsice .
330    
331    checkpoint59e
332    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
333      for B-grid vector (not yet tested) and C-grid vector (<- only used
334      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
335    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
336      (#ifdef ALLOW_SALT_PLUME)
337    o gather_2d/scatter_2d: removed halo regions
338    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
339      scheme and the corresponding test case (under front_relax dir). For now,
340      only available with Skew-flux form and not yet tested in realistic set-up.
341      adjoint: store directives updated, but gradient checks deteriorated,
342      so maybe GM/Redi adjoint is now broken.
343    o seaice adjoint
344      * add AREA, HEFF, HSNOW as control variable
345        (should not change lab_sea results)
346      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
347    o pkg/seaice:
348      * added computation of saltFlux in seaice_growth;
349        For time being, sea ice salinity is assumed constant
350        contribution of snow flooding to freshening of sea ice is neglected.
351        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
352        defaults to 0.0 in order to maintain backward compatibility.
353        Typical values for SEAICE_salinity are 4 to 10 g/kg.
354      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
355      * added SEAICE_availHeatFrac, which specifies fraction of surface level
356        heat content used to melt or grow ice
357      * commented out cap of HICE: it helps keep ice thinner
358      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
359      * applied OBCS T/S mask to HEFFM sea ice mask
360    
361    checkpoint59d
362    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
363     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
364     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
365    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
366     and change default value of parameter "GM_Small_Number";
367     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
368       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
369       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
370    o pkg/ecco: cost function when applying pkg/smooth to controls
371    o pkg/ctrl: add forcingPrecond run time parameter
372    o pkg/seaice:
373     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
374     - fix bug in metric terms of u-equation in LSR solver (implicit part),
375       changes verification/lab_sea
376     - rearrange implicit part of u-equation in LSR solver to make it easier to
377       read, understand, and debug. This causes changes at the truncation level.
378     - fix (serious) bug in the boundary conditions (sign error in the implicit
379       part) of the LSR solver. Changes all LSR results.
380     - fixed problem with HSNOW initialization to avoid thick snow when AREA
381       is initilized with small values - does not change lab_sea results.
382     - added HsnowFile initialization capability
383    o pkg/smooth: addition to model/src and pkg/ctrl so allow
384     initialization of pkg/smooth and application to control vector
385    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
386    o dependencies: pkg/profiles requires pkg/cal
387    o pkg/profiles:
388     - added option ALLOW_PROFILES_GENERICGRID
389         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
390         that interpolation information (grid points and coefficients) is provided
391         within the netcdf input files.
392         -> sample matlab scripts can be found in MITgcm_contrib/gael
393         that allow you to prepare netcdf input files.
394     - also modified: cleaner include statements, cleaner error print statements,
395       cleaner stops when error, and more tests of the netcdf input files consistency.
396    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
397    o pkg/seaice:
398     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
399       requires a new routine: seaice_diagnostics_fill.F
400     - make sure that seaice does not move if not forced (pressure replacement
401       method, Hibler and Ip, 1995), changes results
402     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
403     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
404       It is turned off by default (=-1.), because it changes the results.
405     - make it possible to read AREA from a file, too.
406    
407    checkpoint59c
408    o add S/R and diagnostics for oceanic mixed-layer depth
409    o move GMRedi call after all vertical mixing schemes (including KPP)
410    o pkg/thsice:
411     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
412      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
413    o pkg/obcs:
414     - bug fix for balance code
415    o pkg/seaice:
416      - allow values of SEAICE_elasticParm > 1
417      - add new parameter SEAICE_evpTauRelax as an alternative
418        to SEAICE_elasticParm
419      - make lsr boundary conditions free slip (by default), changes result
420      - add code for no slip boundary conditions for lsr
421      - set minimum of zeta to zero (and not 4e8) (changes results)
422      - add a cap on AREA after advecting AREA if seaice_growth is not called
423    o change calculation of Visbeck K:
424      - no longer depend on tapering scheme; instead, compute slope (limited
425        by GM_maxSlope). this is equivalent to what was comuted before with
426        clipping or linear tappering.
427      - fix vertical averaging (wrong by 1/2 level)
428      - leave the old version (but will not be maintained) within
429        #ifdef OLD_VISBECK_CALC / #endif
430      - update output of exp. ideal_2D_oce
431    o change error catch in calc_r_star to improve vectorization
432    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
433      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
434    o adjoint:
435      Re-organized adjoint checkpointing according to Matt Mazloff
436      (but with modifs/completions/cleanups)
437      Storing is now bundled into large arrays to optimized I/O
438      (and second step in cleanup of the_main_loop)
439    
440    checkpoint59b
441    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
442      - export/import (between ocean & coupler) fields needed for ocean DIC.
443    o pkg/seaice:
444      - get rid of three more exchanges seaice_calc_viscosities (required
445        different loop boundaries in seaice_lsr and seaice_ocean_stress)
446      - bug fix in seaice_ocean_stress (update of lab_sea required)
447      - reduce loop boundaries to necessary minimum also in seaice_evp
448      - go back to the old way of computing deltaC/Z as the adjoint likes that
449        better
450    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
451      passive tracer to an Age Tracer) + update output.txt
452    o pkg/exf:
453      - implement A-grid / C-grid selection for wind-stress input files.
454      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
455      for now, in exf_bulk_largeyeager04.F only :
456      - change implementation for case where windspeed + 2. components wind-stress
457        are read-in. AND use rhoConstFresh to convert evap.
458    o pkg/seaice:
459      - use correct EXCH_UV for wind-forcing (on A-grid).
460      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
461        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
462    o pkg/exf:
463      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
464      EXF_INTERPOLATION:
465      - merge global_with_exf/code version of exf_interp_read.F
466        to the main code ;
467      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
468        reading the file ; Important: This options needs to be defined to recover
469        previous code.
470        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
471      - no longer loose real*8 precision along the way when using exf_iprec=64.
472    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
473      - change discretisation of evp-solver in order to avoid another exchange
474        (changes lab_sea) and clean up a little
475      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
476        help the adjoint (this also changes the results slightly)
477      - add a few "_d 0" where they had been missing in seaice_evp.F
478      - cleaning up: remove unused seaice_calc_rhs.F
479    o pkg/exf: some cleaning-up:
480      - change various "constants" into runtime parameters
481      - cleaned-up Large&Yeager04 routine which should eventually
482        replace exf_bulkformulae.F (changed names of S/R and CPP)
483        and merged various ALLOW_ATM_WIND options
484     only used with thsice pkg (in thsice_get_exf.F):
485      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
486        which are used when useStabilityFct_overIce=TRUE (= the default)
487      - change default values of ice & snow emissivity and scale downward LW
488        by ice & snow emissivity.
489    o pkg/thsice:
490     fix few little problems, in thsice_calc_thickn.F:
491      - growth vertically (and not laterally) if iceFrac == iceMaskMax
492      - melt only laterally if hIce < hThinIce (as the comments say)
493      and in thsice_extend.F:
494      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
495      - start to form ice as soon as the minimum ice-volume is reachable.
496     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
497      and cpl_aim+ocn
498    o pkg/kpp
499     - move computation of surface related input fields to KPP into a new
500       subroutine kpp_forcing_surf.F
501     - remove wrong (within bi,bj loops) EXCH calls.
502     - little cleaning (add argument myThid in last position, cvs header ...)
503     - for now, fix conservation problem by exchanging KPPviscAz (may not
504       be the best fix)
505    o pkg/seaice
506     - check for inconsistent evp parameter/cpp-flag combination
507     - remove leftover errIO flat for obsolete name list error handling
508    o OpenAD
509     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
510    
511    checkpoint59a
512    o pkg/seaice: some parameter clarifications and a little bit of clean up
513    o pkg/thsice: rename run-time parameters:
514       himin       -> hIceMin
515       himin0      -> hThinIce
516       hihig       -> hThickIce
517       i0          -> i0swFrac
518       transCoef   -> bMeltCoef
519       frac_energy -> fracMelting
520      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
521       with default values (for now) that do not change the results.
522      remove old version of thsice vars advection in pkg/seaice.
523    o in FFIELDS.h:
524      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
525      - make pLoad & sIceLoad always available (but still only used if
526         ATMOSPHERIC_LOADING is #define).
527    o pkg/kpp: replaced _KPP_RL with _RL
528    o bug fixes for vertical diffusivity computations when both KPP and
529        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
530        are no longer updating the vertical diffusivity array
531        (passed as argument) but are (re-) setting those arrays.
532    o pkg/seaice: fix bug in evp solver, while doing that
533      - change (improve?) discretization of stress computations for both
534        cgrid-lsr and evp solver
535      - add a new routine to compute strain rates
536      - the above changes lab_sea results
537      - add no slip conditions for evp solver (off by default), lsr-version
538        may follow
539      - fix exchange for shear at Z-points (does not change lab_sea)
540      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
541        (to force the user to pick a time step since there is not "safe" way
542        of choosing it)
543      - add principal stress diagnostics
544      - rearrange fields for evp a little to avoid having to call a: too many
545        exchanges and b: exchanges for stress trensor components which we do
546        not have.
547      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
548        of evp, complete rewrite for lsr case (latter is does not yet work
549        in all cases)
550    o pkg/kpp: add code to have mixing in shelf ice caverns
551      - add myThid to all kpp routines (long overdue)
552    
553    checkpoint59
554    o pkg/exf:
555      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
556        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
557      - move exf header files from lower_case.h to UPPER_CASE.h ;
558        add missing cvs Header & Name
559      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
560      - add namelist param. selectStressGridPosition, exf_monFreq
561      - retire many _CLIM routines, and remove data.exf_clim
562        + params moved to data.exf
563        + climsst, climsss now handled by exf_set_gen, i.e.
564          climss?period=0 refers to constant field,
565          climss?period=-12 to monthly forcing
566      - split up namelists in data.exf
567    o pkg/seaice:
568      - remove seaice_exch and seaice_exch_uv
569      - remove superfluous exchange of theta
570      - add myThid to seaice_budget_ocean/ice
571      - add new interface for atmospheric wind forcing (C-grid only)
572        + new routine
573        + two new field (taux, tauy for stress over ice)
574        + removed one global field (DAIRN) for C-grid case only
575    o pkg/thsise
576      - 2nd set of modifs for thsice adjoint in conjunction with exf
577    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
578    
579    checkpoint58y_post
580    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
581      vertical diffusivity, similar to that in MOM4; turned on using
582      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
583      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
584    o Added capability for 3D specification of background vertical diffusion
585      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
586      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
587      "data" file that contains the 3D vertical diffusivity coefficients.
588    o ice dynamics (pkg/seaice) with thsice thermodynamics:
589      - add code within pkg thsice to advect & diffuse sea-ice fields
590      similar to (and will replace) what has been added in  seaice_advdiff.F,
591      but: - conserving Mass, Heat & Salt.
592           - better when using non-linear advection scheme (not yet fully tested)
593           - can also be used in atmospheric set-up (for now, only the diffusion).
594    
595    checkpoint58x_post
596    o IO option for global-file compact format:
597      - add options when generating topology (utils/exch2/matlab-topology-generator)
598      - add I/O capability (pkg/mdsio).
599      - adapt utils/matlab/rdmds.m to read this format.
600      for now long-line format not yet supported by pkg/mdsio (& exch2).
601    o shelfice: add a few diagnostics
602    
603    checkpoint58w_post
604    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
605      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
606      (and replace horiVertRatio in NH code).
607      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
608                         and tutorial_plume_on_slope (sensitive to truncation)
609    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
610      directly to drive seaice model (C-grid only)
611    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
612     - reintroduce computation of wind from stress,
613     - compute tau (in exf_bulkformulae.F) from windstress averaged to
614       mass points to avoid tau = 0
615     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
616    o rdmnc.m: make it work with "global" files created with gluemnc
617    o rdmnc.m : some improvements in dealing with singleton dimension
618      (tested on all testreport mnc output files).
619    o genmake2: disable pkg/profiles if netcdf test fails.
620    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
621    o move call to cal_readparms up to make calendar parameters/variable available
622      to all packages
623    
624    checkpoint58v_post
625    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
626      useDynP_inEos_Zc tested.
627    o pkg/exf: changes to properly interpolate/mask/scale initial fields
628    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
629      and portions thereof.  See read_cs.txt for description and examples.
630    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
631      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
632      following the great-circle arc between those 2 points.
633    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
634      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
635    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
636     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
637     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
638     - still needs work (not working with some options ; efficiency to improve)
639       and serious testing.
640     - use this scheme for temperature & salinity in 2 advection test exp.:
641       advect_xy & advect_xz, respectively.
642    
643    checkpoint58u_post
644    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
645    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
646    o testreport: add option "-skipdir" to skip some test.
647    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
648      momentum calculation.
649    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
650    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
651      remove checkpoint.F and the_correction_step.F (no longer used);
652      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
653    o add option (linFSConserveTr) to correct for tracer source/sink due to
654      Linear Free surface
655    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
656    o pkg/thsice: fix reading mnc-pickups
657    
658    checkpoint58t_post
659    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
660    o pkg/mdsio:
661     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
662       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
663       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
664     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
665     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
666       either MDS_READ_FIELD or MDS_WRITE_FIELD )
667     - new S/R (to replace MDSWRITEMETA), which allows to write more
668       informations (variable names, time ...) to meta files.
669     - modify rdmds.m to give back the meta file content.
670    o pkg/diagnostics: change vertical interpolation to be safer, and more
671       flexible (define p-levels to interpolate to in data.diagnostics);
672      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
673       diagnostic pointer.
674    o pkg/seaice: more cleaning up of seaice_growth, added many comments
675    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
676    o fix multi-category seaice:
677     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
678       SEAICE_MULTICATEGORY
679     - fix short wave heat flux
680    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
681       and allow to use EVP solver. Change forward lab_sea: test both EVP
682       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
683    o Initial check-in of lab_sea adjoint
684      (very similar to natl_box_adjoint/code_seaice)
685      * used C-grid and EVP solver
686      * used KPP, GM/Redi
687      * uses inAdExact=.TRUE.
688      * gradient checks fail for both ADM and TLM
689        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
690        f.d. gradients actually seem more problematic than ADM, TLM gradients;
691        issue is related to forward mismatch between g77 an ifort
692    o pkg/seaice: overhaul of thermodynamics
693     - growth.F and groatb.F are replaced by new routine seaice_growth.F
694     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
695     - move a few global fields out of SEAICE.h into seaice_growth.F and
696       make them 2D (FICE/QNETO/ ...)
697     - remove FO (it is the same as QNETO)
698     - introduce a few local fields to avoid modifying external fields such
699       as atemp, etc.
700    
701    checkpoint58s_post
702    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
703      changed exf_set_gen.F so that
704        genperiod=0 means input file is one time-constant field and
705        genperiod=-12 means input file contains 12 monthly means
706    o CG2D: use pre-computed solver main-diagonal (stored in common block);
707      this affects truncation error ; generate new output file for exp. which
708      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
709        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
710        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
711        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
712        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
713        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
714    o start implementation of deep-atmosphere and anelastic formulation
715    o verification: remove 2nd copy of input files and use script "prepare_run"
716      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
717    o mom_common/vecinv/fluxform: fix a few initialisation isssues
718    o profiles: fix for multithreaded case
719    
720    o diagnostics: rename few diags:
721      s/'PRESSURE'/'RCENTER '/g
722      s/'TICE    '/'oceFreez'/g
723      s/'TAUX    '/'oceTAUX '/g
724      s/'TAUY    '/'oceTAUY '/g
725      s/'SWFLUX  '/'oceQsw  '/g
726      s/DIFx/DFxE/g
727      s/DIFy/DFyE/g
728      and add few ocean-forcing diagnostics:
729      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
730    o modifications to pkg/seaice/growth.F and budget.F, which change results of
731      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
732      as actual snow thickness.  It now refers everywhere to effective snow
733      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
734    
735    checkpoint58r_post
736    o modifications to pkg/seaice/growth.F, which change results of
737      lab_sea experiment: fixes pertain to melting snow over open water, to
738      masking EVAP under sea ice, and to using the correct AREA variable for
739      computations of EVAP, PRECIP, HSNOW, and GHEFF
740    o add ability to read bathy, salt, and theta using MNC (off by def)
741    o add flooding algorithm and advection of HSNOW for pkg/seaice;
742      both are turned off by default and do no change any results
743    o seaice advection with pkg/thsice: a step toward the use of non-linear
744      advection scheme, but #ifdef or commented out for now (requires more EXCH).
745    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
746      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
747      in natl_box (affects results @ truncation level: update output.txt)
748    o multi-threading and IO:
749      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
750      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
751        (needed to work with SingleCpuIO): tested in all verif. exp.
752    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
753      affects the results (but none of the verification test uses this scheme).
754    o Adding some pkg/diagnostics capability to pkg/seaice
755      (will certainly be subject to changes)
756    o ctrl: adding new control variables:
757      lwflux, lwdown, evap, snowprecip, apressure, runoff
758    
759    checkpoint58q_post
760    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
761      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
762      high_res_cube configuration by 4% on Columbia.
763    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
764      add (in global_with_exf/code) a version of EXF_INTERP_READ without
765      dynamical allocation (seems to work in multi-threaded).
766    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
767      single CPU io) so that TAF does not have to see EESUPPORT.h
768    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
769    
770    checkpoint58p_post
771    o obcs: stop if obcs is used with useCDscheme = .true.
772    o shelfice:
773     - fix a sign error so that no slip at shelfice interface works
774     - remove stop for combination non-hydrostatic code and shelfice. That does
775       not mean, that the results are correct, but at least they are numerically
776       stable
777    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
778    o added adjoint exch routined for all exch*3d* routines
779      and updated flow directives
780    
781    checkpoint58o_post
782    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
783      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
784    o change controling S/R for writing pickup file (new S/R do_write_pickup)
785      and clean-up reading/writing of pickup files.
786    o fix local version of read/write pickup (NH part) in rotating_tank/code
787    o simplify EXCH interface:
788     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
789     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
790    o added the regrid package
791    o shelfice:
792     - add a simple boundary layer scheme to reduce noise
793     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
794    
795    checkpoint58n_post
796    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
797       local variable (not in common block).
798    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
799      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
800      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
801        to work with SingleCpuIO.
802    o add "_d 0" to real constant of pkg/cfc subroutines ;
803       update exp. cfc_exemple & tutorial_cfc_offline output files.
804    o multi-threading and IO:
805      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
806        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
807      - barrier before and after reading.
808      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
809      - avoid using MDS_WRITELOCAL for LAND pkg output.
810      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
811        common-block variables ; Allows multi-threading with master-thread IO.
812    o change default MAX_NO_THREADS from 32 to 4 ;
813      and stop cleanly when MAX_NO_THREADS is too small.
814    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
815    
816    checkpoint58m_post
817    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
818       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
819    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
820       keep global_ocean.90x40x15 (for AD testing) with former secondary test
821       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
822    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
823        add MITgcm_tutorials (= code + all the tutorials)
824    o ecco, option to compute cost for total ssh (mean+anom)
825    o consistent with addition of ptracer and ssh in pkg/profiles
826    o profiles: adding ptracer and ssh
827    o testreport: change multi-test output-file name
828      (from output.txt.{name} to output.{name}.txt)
829    o profiles: now ok for mutli-tiles case
830    o seaice: add 4 parameters for different advection schemes for area,
831      (effective) seaice thickness, enthalphy, and snow height. Their default
832      is the standard parameter SEAICEadvScheme
833    o calc_gw:
834     - add cosFacU in zonal viscous flux (harmonic.visc.).
835     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
836       of tutorial_plume_on_slope.
837    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
838    o calc_gw: true flux-form, account for horizontal grid spacing.
839      update rotating_tank results, but not plume_on_slope (affected at
840      truncation level, 11 digits).
841    
842    checkpoint58l_post
843    o calc_gw:
844     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
845     - remove side-drag for now (need to fix it); update plume_on_slope results.
846     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
847    o commit code to make SST/SSS weights spatially variable
848      (based on either variable in-situ or variable initial T/S weights)
849    o pkg/ecco:
850      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
851        now based on horizontally varying weights wthetaLev, wsaltLev
852      * cost_averagesflags now returns year indices in addition to day, month
853      * sflux balance is performed on annual basis
854        (sflxumm, sfluxmm2, bal_sfluxmm)
855      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
856        including separate counting and multipliers
857    o pkg/rbcs
858      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
859    
860    checkpoint58k_post
861    o testreport:
862     - always build in dir. "build" (if not there, mkdir build instead of building
863       & running in input)
864     - run in dir run (if it exists), in build otherwise.
865     - call prepare_run (if input/prepare_run exists)
866     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
867    o pkg/exf modifications to interpolation and rotation routines for more
868       reasonable treatment of North Pole singularity: for tracers North Pole
869       value is set to northernmost zonal-mean value, for zonal velocity it is
870       set to zero, and for meridional velocity it is set to northernmost value.
871    o pkg/exf/exf_check_range.F
872     - add tile index to diagnostics and move stop statement to the very
873       end of the routine.
874    o pkg/diagnostics: (diagnostics_main_init.F)
875      define title of isomorphic variables according to the current config.
876    o pkg/thsice with pkg/seaice dynamics:
877    - fix domain of computation (interior only, required for exf) and do exchanges
878    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
879    o towards a standard way of dealing with multi-threading in MONITOR
880      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
881    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
882       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
883    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
884    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
885    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
886       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
887    o tracer advection:
888     - clean-up and simplify calc_common_factors.F
889     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
890       advection subroutine (but still not used within DST advection S/R)
891    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
892    
893    checkpoint58j_post
894    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
895      from file (collects calls previously in FORWARD_STEP)
896    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
897    o adjoint store dir. adjusted accordingly
898    o genmake2
899      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
900    
901    checkpoint58i_post
902    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
903      on wind stress (SEAICEstressFactor defaults to 1.)
904    o Total number of Timers is finite (<=40): comment out 2 non-essential one
905      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
906    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
907      on CS-grid: no longer loosing mass.
908    o exf & curvilinear-grid: no longer modify longitude xC & xG.
909    o pkg/ggl90: fix sloppy output and fix a bug
910    o pkg/seaice: added SEAICEuseEVPpickup parameter
911      - Set to false in order to start EVP solver with
912        non-EVP pickup files when using SEAICEuseEVP
913      - fix sign error in diffusion in seaice_calc_rhs
914    
915    checkpoint58h_post
916    * Modifications for bottom topography control
917      o replace hFacC by _hFacC at various places
918      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
919      o add non-self-adjoint cg2d_nsa
920      o update autodiff support routines
921      o re-initialise hfac after ctrl_depth_ini
922      o works for 5x5 box, doesnt work for global_ocean.90x40x15
923    * Adding verification for 5x5 box (4-layer) bottom topography control
924    
925    checkpoint58g_post
926    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
927       used for mean seasonal cycle, mean diurnal cycle); add an example
928       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
929    o pkg/ggl90:
930      - add parameter (minimum surface kinetic energy)
931      - fix bug (avoiding division by zero)
932    o couple pkg/thsice to pkg/seaice:
933      - modify advection in seaice to accomodate new scalar fields to be advected
934      - only muliDimAdection scheme work with seaice/thsice
935      - mapping of thsice-variables to seaice-variables, back and forth
936      - does not break the verification experiments, but does not give the
937        desired results either
938    o pkg/seaice
939      - make (default) second order advection a bit less confusing?
940    
941    checkpoint58f_post
942    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
943      to pkg/seaice):
944      - new routines thsice_map_exf and thsice_get_exf provide the interface
945      - add an additional formal parameter to thsice_solve4temp
946    o pkg/exf:
947      - add new fields wspeed, snowprecip (to be able to couple to thsice)
948      - correct Stefan-Boltzmann constant
949      - new parameter for longwave surface emittance
950      - separate some stuff from exf_bulkformulae into new routines  
951        exf_radiation, exf_wind
952      - add new parameters and constants: longwave emissivity for ocean, ice
953        and snow, evaporation parameters over ice
954      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
955        either wind from stress or stress from wind
956    o pkg/thSIce:
957    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
958    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
959       and THSICE_CALC_THICKN
960    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
961    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
962      to make debugging easier.
963    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
964    o pkg/bulk_force:
965      - clean-up comments and parameters ;
966      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
967    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
968      generate new output for test-experiment: aim.5l_cs.thSI
969    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
970      testreport accordingly
971    
972    checkpoint58e_post
973    o SEAICE_CGRID adjoint done
974    o R_STAR adjoint implemented.
975      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
976      * need to sort out init. of h0facc, etc.
977    o Make pkg/profile fully independent of ecco,cost, etc. stuff
978      to be able to use it in pure forward.
979    
980    checkpoint58d_post
981    o upgrade simple test-experiment to tutorial example:
982     step.1: duplicate the experiment and (step.2) will remove the old copy.
983      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
984      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
985      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
986      tutorial_global_oce_biogeo    <- copy of dic_example
987      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
988      tutorial_plume_on_slope       <- copy of plume_on_slope
989      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
990      tutorial_global_oce_optim     <- empty for now (David ?)
991      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
992     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
993    o correct a sign problem in cost_scat.F
994    o obcs and ptracers: fix boundary conditions for advections schemes
995      with larger stencil
996    o thsice adjoint: start
997    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
998      completeness
999    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1000      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1001    o ptracers adjoint:
1002      * avoid extensive recomputatations
1003      * fix missing re-init. of gptr (missed by TAF)
1004    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1005      me to turn off the excessive output to STDOUT that this package produces
1006    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1007      and add those terms in Vector-Invariant formulation.
1008    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1009      if the control period (xx_hfluxperiod etc) is 0
1010    o in profiles pkg, clean routines and fix details
1011    o in ecco pkg, reading ssh data:
1012      fix problem in case the model does not start at iter0=0
1013    o fix mnc-pickup/restart for ptracers
1014    o new package prifiles:
1015      code to compute profile-based cost by Gael Forget
1016      (modifs in ecco, ctrl, autodiff)
1017    o Benign bug fix in initialization (spotted by M. Mazloff) of
1018      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1019    
1020    checkpoint58c_post
1021    o adjoint: finish NLFS adjoint and provide reference output in
1022      verification/global_ocean.90x40x15/results_ad_nlfs
1023    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1024      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1025      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1026      with SEAICE_CGRID defined.
1027    o move calendarDumps from "data" to "data.cal" and clean-up the code
1028      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1029    o add useEXF & useCAL flags (for now, set in hard-coded way)
1030    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1031      (were missing in NH mode, and wrong in quasihydrostatic mode).
1032      waiting for Chris updated version of calc_gw to add those CALLs.
1033    o fix bug in quasihydrostatic S/R ;
1034      add a test for this option: global_ocean.90x40x15.qshyd
1035    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1036      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1037    o add on/off flag useOffLine for package OFFLINE
1038    o seaice:
1039      - modify advection so that it works also on the C-grid
1040      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1041        problem in multi-tile runs with C-grid
1042      - add flags for clipping ice velocities and/or masking solver forcing
1043      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1044        C-grid solver
1045      - added a few comments to seaice_diffusion.F
1046      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1047        are now exclusive)
1048      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1049        required re-ordering the code a little:
1050       + make DAIRN global variable (defined in SEAICE)
1051       + move computation of the viscosities eta and zeta into a new separate
1052         routine (because I need to recompute them in seaice_ocean_stress.F)
1053    
1054    checkpoint58b_post
1055    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1056      update output.txt of exp. aim.5l_cs.thSI
1057    o various mnc cleanups and improvements:
1058      + shrink lookup tables by factor of ~4
1059      + better error reporting when running out of lookup space
1060      + able to handle longer path/file names (up to 500 chars)
1061    o adjoint:
1062      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1063      - TBD: "hidden" mom_vecinv recomp. in dynamics
1064    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1065     (allow to differentiate between forcing components using new integer flags:
1066      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1067     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1068    o ecco
1069      - enable trend removal from SSH anomaly obs.
1070    o adjoint
1071      - a fix for PmEpR when #undef EXACT_CONSERV
1072      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1073      - try to fix "hidden" recomp. in forward_step for NLFS
1074        (NLFS seems broken sometimes after I checked it in)
1075    o seaice:
1076     - add c-grid version of the dynamic solver:
1077       + three new routines that are the c-grid substitute lsr, dynsolver
1078         and ostres
1079       + put a few fields that were local to dynsolver into global common
1080         blocks, so that I can move the computation of stresses etc into
1081         seaice_lsr (saves coding but may break the adjoint).
1082     - replace more hardwired parameters by runtime parameters
1083     - add ice masks that mask the rhs of the implicit solvers where there
1084       is no ice (commented out in seaice_dynsolver, because i am not sure
1085       if this works properly), eventually this should replace the clipping
1086       of ice velocities in seaice_dynsolver to +/-40cm/s.
1087    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1088      include it only where its needed
1089    o move balancing of fluxes before the call of external_forcing_surf
1090    o seaice:
1091      - correct units of turning angles (now they are really in degrees)
1092      - move computation of GWATX/Y out of main routine into dynsolver
1093      - initialize GWATX/Y in seaice_init
1094    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1095      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1096    o seaice: add runtime flags for turning angles (default to zero)
1097    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1098      and trend from exf forcing and ctrl control adjustments
1099    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1100      (since checkpoint57x_post)
1101    o change the default rotation period to 86164.s = the Earth rotation
1102    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1103      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1104    o seaice advection: add code for choosing between the default (2nd order
1105      central differences) and multiDim advection schemes provided by
1106      pkg/generic_advdiff
1107    o seaice:
1108      - removed all references to SEAICE_GRID.h fields from
1109        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1110        (cubed-sphere configuration will change a little)
1111      - grid computations in seaice_init are obsolete now.
1112      - cleaned up code a little so that is easier to read (hopefully).
1113      - added new (better?) discretizations of default advection and diffusion
1114        (turn on with SEAICEuseFluxForm)
1115      - replace 1 in 3d global fields by kSurface in growth.F
1116      
1117    checkpoint58a_post
1118    o seaice:
1119      - bug fix in advect.F
1120    o shelfice:
1121      - separate shelfice load anomaly from pload (breaks with time
1122        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1123        Its default is 0., but it may be computed more cleverly from (unknown)
1124        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1125        done offline. A good approximation of the pressure load anomaly is
1126        necessary to avoid large initial adjustment processes underneath
1127        deep-reaching shelfice.
1128      - small fix in ISOMIP shelfice_thermodynamics
1129      - add more sophisticated thermodynamics of Hellmer (1989), this is
1130        now the default
1131      - give a few constants more intuitive names
1132    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1133      if bulk formulae are used in long integration (especially EmPmR). Turn
1134      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1135      if balancePrintMean, the imbalance that is substracted is printed to
1136      STDOUT.
1137    o fix bug (typo) in obcs_apply_eta.F
1138    o add a new package shelfice which enables us to model the circulation
1139      underneath shelf-ice with draughts of hundreds of meters.
1140     - works
1141     - to do: + include improved thermodynamics
1142              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1143                instead of new field kTopC
1144              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1145                instead of new field R_shelfIce and new code in ini_depth.F
1146                and ini_mask_etc.F?
1147              + adjust vertical mixing schemes?
1148    o seaice pkg:
1149     - add a cpp-flag to include a simple formula for a salinity dependent
1150       freezing point of sea water at the surface
1151     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1152       meridional stresses are now different (and hopefully correct)
1153    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1154       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1155       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1156    o pkg/diagnostics: add options and parameters for regional-statistics
1157       diagnostics ; define regions by reading a region-mask from a file
1158       (might add other options later)
1159    o pkg/bulk_force:
1160     - add option and parameters to use AIM surface-flux formulae.
1161     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1162       others forcing fields (defined in PARM05, parameter file "data") are loaded
1163       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1164     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1165     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1166     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1167       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1168     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1169    
1170    checkpoint58
1171    o add "--embed-source" option to genmake2 which, when the supporting
1172      tools can be compiled (as determined by genmake2) will turn on the
1173      embed_files package which then embeds the entire MITgcm source code
1174      (*.[fFhc] + Makefile) used for the build within the executable
1175      - requested by CNH but off by default
1176      - adds a paltry <9MB to the mitgcmuv executable in most cases
1177      - only writes the output when useEMBEDSRC in eedata is true
1178    o clean up 3-dim. relaxation codes:
1179      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1180      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1181      * Thanks to Tom Haine for testing!
1182    
1183    checkpoint57z_post
1184    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1185      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1186    o fix the pickup behavior for obcs in combination with ptracers
1187    o fix a bug in ptracers_external_fields_load
1188    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1189      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1190    o transfered surface NH pressure to eta field (if exactConserv).
1191    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1192         and update lab_sea output.txt file.
1193    o completing 3-dim. relaxation code: additional term
1194         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1195      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1196      * At compile time, in "EXF_OPTIONS.h" set
1197          #define  ALLOW_CLIMTEMP_RELAXATION
1198          #define  ALLOW_CLIMSALT_RELAXATION
1199      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1200          tauThetaClimRelax3Dim = 15552000.0,
1201          tauSaltClimRelax3Dim  = 15552000.0,
1202      * 3 cases:
1203          1) Use a constant-in-time 3-dim. field
1204          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1205          3) Real-time relax. to time-evolving prescribed field
1206    o Adding Laplacian-type smoothness constraint on
1207      initial and boundary (forcing) controls (ic, bc)
1208      * enable at compile-time via
1209        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1210      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1211      * Absolute scale somewhat unclear so far
1212      * no area weighting was included since no other cost term does so far
1213    
1214    checkpoint57y_post
1215    First step for a NLFS adjoint
1216    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1217    o new init. routines for calc_r_star, calc_surf_dr
1218    o still need to deal with ini_masks_etc
1219    o testreport seemed happy
1220    checkpoint57y_pre
1221    
1222    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1223    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1224    o add new offset feature to offline pkg (plus minor cleanup)
1225    o cfc fixes for final year of integration
1226    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1227      be in GCHEM_OPTIONS).
1228    
1229    checkpoint57x_post
1230    o fix testreport Pb in multiple test experiment.
1231    o cleanup our namelist syntax in verification:
1232      - make it more F95 standards compliant (some work still needed)
1233      - allows the vast majority of our tests to work with gfortran
1234    o Non-Hydrostatic:
1235     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1236     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1237    o Allow to apply AB on T,S rather than on AB(gT,gS):
1238     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1239     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1240       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1241     - need a "clever" read_pickup to restart from the other AB formulation
1242    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1243    o remove some unused variables (reduces number of compiler warnings)
1244    o adjoint
1245      * Disable useVariableViscosity for adjoint for time being
1246        (there are a number of extensive recomputations)
1247      * Initialize certain variables needed for adjoint
1248    
1249    checkpoint57w_post
1250    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1251                 fix the singleCpuIO RS version of MDSWRITEFIELD
1252       and add a WARNING if using globalFiles=T with multi-processors.
1253    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1254      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1255    o tracer advection scheme:
1256      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1257       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1258       was not very convenient).
1259      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1260       (further tests needed for the implicit DST & Flux-Limiter schemes).
1261    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1262      and sRef for convenience, handy, when you want to initialize
1263      ptracers in a large domain with a constant non-zero value. Also,
1264      untangle ptracers_init.F a little.
1265    
1266    checkpoint57v_post
1267    o change dome exp. to use variable viscosity in side-drag terms.
1268    o remove all the files from the cfc_offline test since they are now
1269      incorporated into tutorial_cfc_offline which has been producing
1270      identical results for a few days of testing
1271    o add new parameter: sideDragFactor to enable half-slip-side BC
1272      and change side-drag S/R to use viscosity from mom_calc_visc
1273      (can switch back by setting sideDragFactor=0.); affects results at
1274      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1275       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1276    o vorticity & strain are now computed without masking, to account for
1277      no-slip-side BC in variable viscosity calculation ; mask is applied
1278      anyway later on, before computing advection/coriolis terms.
1279    o modify exp4 to test new obcs support for reading from external files
1280      and for passive tracers
1281    o fix behavior of ptracers_monitor when monitor output is written to a
1282      netcdf-file; still not independent of monitor.F (writes in the same
1283      file).
1284    o change default value of tRef (put a uniform, meaningful value for ocean
1285      & atmos) and initialize sRef (was missing, as Martin mentioned).
1286    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1287      to be proportional to enstrophy dissipation length.  Thus,
1288       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1289      This is now consistent with Smagorinsky and with the manual.
1290    
1291    checkpoint57u_post
1292    o OBCS and PTRACERS: add open boundary support for passive tracers
1293      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1294        OB-values from file; this is not different from the way theta and salinity
1295        are treated
1296      - however, Orlanski-radiation conditions are not supported, and the model
1297        will stop if you use pTracers and Orlanski at the same time.
1298      - beefed up the rountine obcs_external_fields_load: now only those open
1299        boundary values are overwritten with values from files for which there
1300        are really files, otherwise the OB-fields remain untouched. This makes
1301        it possible to use different OBs at different ends of the domain (as
1302        with EXF)
1303    o reduce number of exch calls in shap_filt (s2).
1304    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1305      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1306    
1307    checkpoint57t_post
1308    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1309    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1310      same truncation, independent of the face number: affects affects several
1311      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1312    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1313      note that biharmonic viscosity + no-slip was not tested in any experiment.
1314    o fix bug in non-linear free-surf side-drag ; generate new output for
1315      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1316    o make mnc honor the writeBinaryPrec flag for most kinds of output
1317    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1318    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1319      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1320    o add brackets in multi-terms sum to get same truncation, independent of
1321      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1322      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1323    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1324      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1325      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1326      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1327      Suggested values of viscosity parameters found in mom_calc_visc.
1328      Many new viscosity diagnostics available.
1329    
1330    checkpoint57s_post
1331    o Add clearing-house for viscosity calculations, mom_calc_visc and
1332      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1333      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1334      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1335      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1336      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1337      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1338      ViscAhStrain and viscAhTension are now retired.
1339    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1340    o In response to JMC's bug report, genmake2 now ignores any soft-links
1341      that it finds in the *current* directory when searching for files.
1342      Soft-links found in any other source directories will still work as
1343      they did before.
1344    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1345      a C routine to unlimit the stack size
1346    o mnc-ify pkg/aim snapshot vars
1347    o mnc-ify pkg/land as requested by Daniel
1348    o various changes to mnc including:
1349      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1350      - output can now be grouped so that all files within a group
1351          change the ITER portion of their names in lock-step together
1352      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1353          and works with both EXCH1 and EXCH2 (but needs more testing)
1354      - writing works for all verification test cases w/ g77 on Linux
1355    
1356    checkpoint57r_post
1357    o make MNC variable initialization happen earlier
1358    o add diagnostics for (almost) each term of the momentum Eq.
1359    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1360    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1361    o remove MINIMAL_TAVE_OUTPUT option ;
1362      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1363    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1364      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1365    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1366    o add time-dependent SST, SSS control
1367    o cost terms in ecco/ modularized (new cost_generic.F)
1368    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1369    o new infrastructure for seaice model vs. obs misfits in seaice/
1370      * driver from the_main_loop.F is seaice_cost_driver.F
1371      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1372      * gradient check in Exp. 6a of natl_box_adjoint/
1373    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1374      (see README file)
1375    
1376    checkpoint57q_post
1377    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1378    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1379      - bug was reported by Jean-Michel and Ian Fenty
1380    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1381      update exp. cpl_aim+ocn output.
1382    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1383      Needed for high-res. runs with large global files
1384      to be able to limit tapelev size
1385    o Changed some tests for adjoint:
1386      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1387      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1388      * global_ocean.90x40x15/ back to default 3-level checkpointing
1389    o Modifications to enable scripted COMMON to MODULE conversion
1390      * verification/OpenAD/code/ has necessary scripts and description;
1391      * converts, compiles and runs successfully;
1392    
1393    checkpoint57p_post
1394    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1395    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1396      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1397    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1398    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1399      (was already the case for dissipation with mom_vecinv,
1400       and also the case for grad.PhiHyd when staggered-timeStep)
1401      This will allow to put dissipation out-off the AB time-stepping.
1402     Unfortunately, affects truncation error. Update output of exp. that "fails"
1403      (cg2d matching number) and leave the others for later: front_relax(10),
1404      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1405      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1406    
1407    checkpoint57o_post
1408    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1409      (2) its ready to be documented during the 20050801 DocFest
1410    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1411      for ideal_2D_oce and lab_sea on linux_ia32_g77
1412    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1413      in global1x1_tot/code_seaice_adj to access indices 32, 33
1414      (worth another tag)
1415    
1416    checkpoint57n_post
1417    o adding precip control xx_precip 32
1418    o adding swflux control xx_swflux 33
1419    o Replacing 10 forcing penalty cost routines by 1 generic.
1420    o Implementing partitioning in time-mean and variable adjustment
1421      for atmos. state.
1422    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1423    o in natl_box_adjoint:
1424      * updated exp 1 to 10
1425        (but does not have time-mean vs. variable split results yet)
1426    o updated global1x1/*_seaice_adj/
1427      to incorporate latest changes
1428    o enable useSingleCpuIO for mdsio vector routines
1429      (applies in particular to tapelev I/O)
1430    o removed inefficient K-loop in all active_file*control*.F
1431    
1432    checkpoint57m_post
1433    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1434      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1435    o pkg/exch2: filling of face-corner halo regions is optional
1436      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1437    
1438    checkpoint57l_post
1439     tag before updating tutorials (pre-release-2)
1440    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1441       for output and interpolation of input fields onto model grid)
1442    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1443       Affects results of exp. rotating_tank ; update output.txt.
1444    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1445          and taking the square quantity and/or using a fraction-weight field.
1446    o fix aim_diagnostics_init.F mate numbers.
1447    o add mnc output capability to diagnostics/diagstat and update
1448      our cvsignore files for the ACSII output generated
1449    
1450    checkpoint57k_post
1451    o lab_sea now uses diagnostics package and provides a suite of
1452      new EXF diagnostics output.
1453    
1454    checkpoint57j_post
1455    o exf
1456      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1457        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1458        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1459      * extended diagnostics output
1460        - now includes all EXF variables
1461        - hs, hl moved to common block
1462        - separate S/R for diagnostics, called after ctrl vector is added
1463        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1464        - EXFqnet contains true Qnet (i.e. includes qsw)
1465      * updated verif. lab_sea, global_with_exf
1466      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1467        to ensure that diagnostics sees a true EXFqnet
1468    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1469    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1470      several times with different frequencies.
1471    o mnc-ify the thsice package as requested by Daniel Enderton
1472      - the monitor--MNC output needs work
1473      - many attributes need to be added (most are currently blank)
1474    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1475      - many attributes need to be added (most are currently blank)
1476    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1477    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1478    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1479      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1480         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1481    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1482     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1483    
1484    checkpoint57i_post
1485    o Diagnostics package was changed: diagnostic allocation is now deactivated
1486      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1487    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1488      add 1rst Order upwind vertical Shear.
1489    o add a quick fix for A/B checkpointing in OFFLINE mode
1490    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1491      end-run around the C/Fortran linking horror in eesup/src/timers.F
1492    o added pkg/runclock: allows user to terminate run based on wall clock
1493    o added non-hydrostatic scaling parameter: nh_am2
1494    o pkg/my82: futile attempt to make results compiler-independent by adding
1495      some "_d 0", etc. no effect.
1496    o for mnc output, fill the 'T' coordinate var with myTime and create a
1497      separate 'iter' variable for iteration count
1498    o pkg/diagnostics:
1499      add new capability: output of Global/Regional & per-level statistics ;
1500      tested against monitor output (including land & thSIce) on various exp.
1501    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1502    
1503    checkpoint57h_done
1504      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1505      data.diagnostics, data.gchem, data.ptracers) is done.
1506    
1507    o pkg/diagnostics: prepare for Global/Regional statistics.
1508      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1509    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1510      and rename it: DIFFERENT_MULTIPLE
1511    
1512    checkpoint57h_post
1513    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1514    o pkg/diagnostics: change output frequency, now in seconds (instead
1515      of Nb of iterations). This requires to change data.diagnostics.
1516    checkpoint57h_pre
1517    
1518    o in mnc, let the user create the output dir if both mnc_outdir_date
1519      and mnc_outdir_num are false
1520    o add fflags() to pkg/diagnostics which allows one to specify, on a
1521      per-file basis, the file precision [default behavior is unchanged]
1522    o added diagnostics to pkg/kpp, including computation of mixed layer
1523      depth based on a temperature/density criterion
1524    o updated verification/natl_box to test the new pkg/kpp diagnostics
1525    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1526    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1527    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1528      not mnc -- this mistake was found by JMC and is now corrected
1529    
1530    checkpoint57g_post
1531    o add Adams-Bashforth 3rd Order time stepping:
1532      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1533      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1534    checkpoint57g_pre
1535    
1536    o make lambda[Theta,Salt]ClimRelax spatially varying
1537      (default remains spatially uniform constant based on tau)
1538    o added new control variables
1539      * init. uVel, vVel, etanN
1540      * lambda[Theta,Salt]ClimRelax
1541    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1542      (suggested by G. Forget)
1543    
1544    checkpoint57f_post
1545    o add parameter "baseTime" = model base time = time at iteration zero
1546      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1547      account for baseTime shift
1548    o move Coriolis arrays from PARAMS.h to GRID.h
1549    checkpoint57f_pre
1550    
1551    o mnc-ifying the seaice package
1552    o introduced an alternative length scale calculation for use in the limiting
1553      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1554    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1555    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1556      as well as grad(vort3).  Made it compatible with both approximate form
1557      for the cubed sphere and full form of these gradients.  Added flag
1558      useFullLeith to select between approximate and full form.  
1559    o add "d0" in getcon.F to reduce differences between compilers/platforms
1560      update output.txt of exp. fizhi-gridalt-hs
1561    o change port_rand funtion to allow to set the seed.
1562    o fix obscure MNC bug involving conversion between reals and integers
1563      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1564        new version is now more standards-compliant
1565    o adjoint-related modifications
1566      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1567      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1568      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1569    
1570    checkpoint57e_post
1571    o Adding eddy stress controls a la Ferreira et al.
1572    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1573    
1574    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1575      update output.txt of exp. fizhi-gridalt-hs
1576    o add more "Z" dimensions and associated coordinate vars to MNC
1577    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1578    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1579      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1580      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1581      months and years.  Requires pkg/cal.
1582    o diagnostics: add pickup functionality
1583      - off by default for backwards compatibility
1584      - current version only uses MDSIO -- MNC will be added
1585    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1586    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1587    
1588    checkpoint57d_post
1589    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1590    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1591      output from the diagnostics package
1592    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1593    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1594      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1595    o add coordinate variables to the MNC output from the diagnostics package
1596    o change MNC-flags default value: true when useMNC=TRUE
1597    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1598      the ability (off by default) to read the grid information using MNC
1599    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1600    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1601    o do snap-shot diagnostics at the middle of the time-interval (instead of
1602      at the end).
1603    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1604      new test for AIM with thSIce + slab-ocean
1605    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1606    o move state variable diagnostics to the beginning of the time step ;
1607      (note: still needs some work specially for snap-shot diagnostics)
1608      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1609    
1610    checkpoint57c_post
1611    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1612    o generate new output.txt files on faulks with g77 & the new -ieee option
1613    checkpoint57c_pre
1614    
1615    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1616      update output.txt of exp. global_ocean.90x40x15
1617    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1618      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1619    o add saltFlux(+File) forcing capability with periodicExternalForcing
1620    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1621    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1622    o improvements for the MNC output from DIAGNOSTICS:
1623      - correct handling of the unlimitied dimension
1624      - all dims now have associated coordinate variables
1625      - variables located at U, V, and Corner ("Z") points are now written
1626        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1627        *all* data points are output
1628    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1629    o added pkg/seaice/seaice_monitor.F
1630    o mdsio_readfield.F can now read files visible only to master MPI process.
1631    o pkg/seaice: some test code for ice-modified ocean stress
1632    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1633      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1634      spurious negative numbers for precipitation and humidity.  Will cause
1635      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1636    o pkg/ctrl/
1637      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1638        May be enabled via doPackDiag
1639      *  introduce z-scaling of
1640         + gradient (doZscalePack) and
1641         + control (doZscaleUnpack)
1642    o pkg/mdsio/
1643      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1644      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1645    
1646    checkpoint57b_post
1647    o simplify options in diagnostics_fill arguments (remove weird combinations)
1648    o fix MNC coordinate variables so that they now contain per-face index
1649      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1650      general, EXCH2 grids are only aligned to a "local" coordinate system
1651    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1652    o Implement instantaneous output within pkg diagnostics:
1653      setting a negative frequency in data.diagnostics produces
1654     "snap-shot" output (as opposed to time-average if freq > 0)
1655    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1656      NOTE: change ptracer diagnostics name: use 2 characters to work with
1657            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1658    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1659      becomes the coordinate variable for the 'T' dimension
1660    o add CF-style coordinate variables to MNC
1661      - just a first cut:  numbers are meaningless on the cubesphere and
1662        missing along the T axis but otherwise it works!
1663    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1664    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1665    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1666      this is based directly on what the model compute, so that the content of
1667      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1668    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1669    o clean up build options files for SunOS, in particular
1670      - remove -traditional from xmakedepend
1671      - change -xarch=v9 to -xarch=native for f77
1672      - restore use of make (not gmake)
1673      - add CC=gcc if using g77
1674    o changes per discussion of AM, JMC, & EH3 today:
1675      - move redundant "grid" variables out of "state" -- in preparation of
1676        creating proper CF-style coordinate variables and in recognition
1677        that any/all grid variables can be easily copied (eg. w/NCO) from
1678        the grid files into any of the other NetCDF files
1679      - *always* output grid variables with MDSIO (this will eventually be
1680        changed)
1681      - output MNC grid file if useMNC is true
1682    o every instance of _END_MASTER() has been found and replaced with
1683      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1684      preprocessors
1685    o re-arrange diagnostics pkg initialisation:
1686     - allow each package to extend the available diagnostics list
1687     - add some checking and fix small problems (multi-threaded, ...)
1688     - new S/R diagnostics_fill (replace fill_diagnostics):
1689       look through the short list of active diag. (instead of the long list)
1690       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1691    
1692    checkpoint57a_post
1693    o this set of changes restores TAMC compatibility
1694      tested for global_ocean.90x40x15 adjoint on trough
1695      (what a pain)
1696    
1697    checkpoint57a_pre
1698    o some modifs in tools/build_options for sunos
1699    o call ctrl_pack for ctrl at end for optimcycle=0
1700    
1701    checkpoint57
1702    o add horizontal bi-harmonic viscosity for vertical velocity
1703      - new parameter viscA4W (defaults to viscA4)
1704      - affects only non-hydrostatic code
1705      - to be done: no-slip lateral boundary conditions
1706    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1707    o implement Implicit Vertical advection for pTracers
1708    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1709      (implemented also for implicit vertical diffusion & advection)
1710    o OBCS: extend application of tracer open boundary conditions
1711      to a strip beyond the boundary of width Olx/Oly
1712    o add call monitor to TAF set of required calls (flow directives)
1713      and include in natl_box_adjoint
1714    o untangle a few ifdefs related to cost, ctrl, autodiff
1715      untangel a few ALLOW_ECCO_OPTIMIZATION
1716    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1717      (theta2, salt2 in ecco_cost_weights)
1718    
1719    checkpoint56c_post
1720    o OBCS as control variables
1721      - update ctrl_ad_diff.list, obcs_ad_diff.list
1722      - remove balance of obcs controls from default
1723      - fix index bug nobcs in ctrl_init
1724      - fix dummy fields filen in ctrl_pack
1725      - add dummy weights for obcs
1726    o lsopt: comment out fort.94 output
1727    o optim:
1728      - remove unnecessary header files
1729      - adjusted namelists
1730      - add xerbla.F to Makefile
1731    o exf:
1732      - multiple modifications of exf_check_range
1733      - unit change in exf_init_runoff from [m/year] to [m/s]
1734    o mdsio:
1735      - i/o-vector change debugLevel from debLevA to debLevB
1736    
1737    checkpoint56b_post
1738    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1739      is called from DO_THE_MODEL_IO
1740      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1741      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1742      - clean up PTRACERS_WRITE_TIMEAVE a little
1743    o add another verification experiment that tests both the cfc-pkg and
1744      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1745      reactive tendencies treated inline with regular timestepping
1746    o testreport previously did a lousy job of comparing small numbers, so
1747      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1748      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1749      testreport.
1750    o ptracers_monitor: bug fix for MPI
1751    
1752    checkpoint56a_post
1753    o GCHEM: finish reorganizating the package
1754      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1755        (introduces another 3D-array for each passive tracer, but only if
1756        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1757        gchemTendency is not needed because the timestep is done separately)
1758      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1759      - GCHEM is now---more or less cleanly---separate from PTRACERS
1760      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1761        so clear to me how that should be done in a general way.
1762    o CFC: improve formatting of output in CFC_ATMOS
1763    o PTRACERS:
1764      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1765        that ALL experiments with ptracers enable can be checked. This makes
1766        GCHEM_MONITOR obsolete.
1767      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1768        monitorFreq
1769      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1770    o add PTRACERS (PTR0[1-5]) to testreport output
1771    o exf_check_range:
1772      * default changed to .TRUE.
1773      * will check values for niter0 if debLevA, every timestep if debLevB
1774      * STOP in exf_check_range if 'out of range'
1775      * range chosen generous to allow for potential extema
1776      TBD: a version with stricter range
1777           permitted range would be runtime parameters
1778  o GMredi:  o GMredi:
1779    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1780    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 1783  o GCHEM:
1783    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
1784      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1785    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1786      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1787        this flag is now only visible within GCHEM-pkg routines.
1788      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1789        be replaced by a 3D array that is computed before thermodynamics; for
1790        this, the tracer ID iTracer had to be included into the parameter list
1791        of ptracers_forcing
1792      - set up forward_step to call gchem_forcing, that will replace
1793        gchem_forcing_int in ptracers_forcing
1794      - cleaning up
1795  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
1796    
1797  checkpoint56  checkpoint56

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