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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.963 by mlosch, Wed Feb 27 23:33:15 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  o adding precip control xx_precip  o pkg/shelfice:
8  o moved ptracer ctrl index 17 -> 32    - sort out freshwater flux; convert freshwater fluxes to mass fluxes
9        (kg/m^2/s), does not break tests, because in verification/isomip,
10        rhoConstFresh=rhoConst (by accident)
11      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
12      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
13        new file model/src/seawater.F, so that they are available for all pkgs.
14      - convert potential temperature into in-situ temperature. This changes the
15        isomip tests => update tests
16    o add a flag writePickupAtEnd (default=true) to be able to suppress
17      writing a pickup at the last timestep
18    o pkg/profiles:
19      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
20      (for "less than 32 characters name" compiler requirement)
21    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
22      conditions that have a different sampling frequency than S/T/U/V obcs
23    o pkg/diagnostics (stats-diags):
24      - fix global Min/Max in case 1 processor get only empty tiles
25    o genmake2: replace (4 times)
26         make genmake_tc_1.o >> genmake_warnings 2>&1
27      with
28         COMM="$CC $CFLAGS -c genmake_tc_1.c"
29         echo $COMM >> genmake_warnings
30         $COMM >> genmake_warnings 2>&1
31      to make genmake2 always see the value of CC as specified in the optfile.
32    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
33      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
34      - modify verification advect_cs test to test SOM-advection on CS-grid.
35    o pkg/ctrl:
36      - Rewrite of ctrl_map_ini_ecco.F,
37        introducing a generic routine (ctrl_map_ini_gen.F).
38      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
39    
40    checkpoint59n
41    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
42      number in dedicate array "hdiag":
43      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
44        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
45      - many small changes (integer format) for large number of diagnostics
46      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
47        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
48    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
49      usingSphericalGrid, this allows to define the rotated grid coordinates
50      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
51      geographical coordinates according to the inverse of the rotation defined
52      by the Euler angles, so that Coriolis parameter and online-interpolation by
53      exf works with the geographical coordinates on XC/YC/XG/YG.
54      Naturally, this feature does not work with all packages, so some
55      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
56      profiles), because there the coordinates are assumed to be regular
57      spherical grid coordinates.
58    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
59      - introduce isopycnal diffusion coefficient control.
60    o tools/adjoint_options:
61      - additional control vector components.
62    o pkg/mnc: have mnc create marginally meaning full coordinate variables
63      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
64    o pkg/mypackage:
65      - add example of read/write pickup for state-var ;
66      - add entry points to the main code for state-vars diags & write-pickup.
67    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
68      transitions for useExfYearlyFields
69      - add new subroutine that determines the file to read from for
70        use*YearlyFields = .TRUE. and .FALSE.
71      - add a verification experiment to global_with_exf that tests
72        useExfYearlyFields with USE_EXF_INTERPOLATION defined
73    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
74      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
75      subroutines (which could be generated from a template, because they are
76      almost identical), for now they are included in obcs_prescribe_read.F for
77      simplicity
78    o pkg/exf:
79      - add a little more diagnostic to exf_interp_read (in analogy to
80        mds_read_field, can be turned off with debugLevel < debugLevA=1)
81      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
82        ugly but fast by unrolling short inner loops, inserting a unroll=8
83        directive in routine lagran, and splitting a loop and making do while the
84        outermost loop (the latter requires the intoduction of index arrays)
85    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
86    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
87      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
88    o verification/seaice_obcs: updated for restart test and latest options
89    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
90      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
91      for now this is only available for the C-grid code and also within
92      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
93    
94    checkpoint59m
95    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
96      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
97    o gad_som : fix flux output (& diagnostics) to have same units as other  
98      advection scheme fluxes (was previously multiplied by deltaT).  
99    o added verification/seaice_obcs both to test seaice open boundaries
100      and to provide an example matlab scrpt for generating them
101    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
102    o pkg/salt_plume: clean up salt_plume_frac.F to
103      remove redundancy in PlumeMethod 1 and 4
104    o pkg/kpp: added saltplume diagnostics
105    o pkg/obcs and pkg/seaice:
106      - do not set uice and vice to zero when OB*icefile are unspecified
107      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
108      - moved seaice tracer obcs after call to seaice_growth
109    o pkg/salt_plume: added various options for salt plume depth
110      criterion and for vertical distribution of the salt
111    
112    checkpoint59l
113    o pkg/ptracers: new version of ptracers pickup:
114      read meta file and write only fields which are needed to restart.
115      ( same logic as main pickup file ; also using pickupStrictlyMatch )
116    o pkg/seaice:
117      - add timescale for melting due to warm mixed layer as a means of
118        setting SEAICE_availHeatFrac more conveniently
119      - add a CPP-flag/runtime parameter check for flooding algorithm
120      - reformulated availHeat in seaice_growth.F to be independent of AREA
121    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
122      unit changes
123    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
124    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
125      SX vector computer.
126    o pkg/seaice:
127      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
128        seaice forcing fields can now be read only through pkg/exf
129      - removed some unused halos
130    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
131    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
132      or U/VICE from U/VWIND before computing U/VSTRESS
133    
134    checkpoint59k
135    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
136      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
137    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
138      all experiments pass when compile with un-initialised var. checking option.
139    o added pkg/salt_plume
140    o script to test restart (for now, in MITgcm_contrib/jmc_script)
141    o pkg/seaice: new read/write pickup version.
142      read meta file and write only fields which are needed to restart.
143      ( same logic as main pickup file ; also using pickupStrictlyMatch )
144    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
145    o lab_sea.hb87: modify the domain & update output.hb87.txt :
146      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
147      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
148      process. Fixed here by closing the domain at the Northern boundary.
149    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
150    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
151      a set of consecutive levels in/from a 3-D array.
152    o pkg/ptracers:
153      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
154      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
155    
156    checkpoint59j
157    o in pkgs: dic, obcs, offline, rbcs:
158      standard way to compute coeff. for time interpolation between 2 time reccords
159      which retains full precision (& make results less dependent on compiler).
160      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
161    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
162      packages instead of reading ice cover and wind speed separately
163    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
164     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
165      to allow to compile customized code before the update)
166    o cleaning-up:
167      - fix CPP instruction syntax in pkg/obcs
168      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
169        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
170      - fix some threads issue in IO parts.
171    o pkg/dic:
172      - add tons of "_d 0" (--> much better testreports !)
173       and then update outputs of tutorial_global_oce_biogeo
174    o pkg/mom_fluxform:
175      add a special version of momentum advection intended to conserve momentum
176      next to a bathymetry step or a coastline edge. (default = off = #undef)
177    o new read/write pickup version:
178      - for now, only implemented for main (mdsio) pickup file.
179      - write out only what is needed to restart; merge pickup_nh , pickup_ph
180        and main pickup together.
181      - read meta file; read only what is needed to restart; stop if a field
182        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
183        if it make sense (even if the restart is not perfect).
184      - if no meta file, assume that pickup to read corresponds exactly to
185        a pickup that would currently be written.
186      - read pickup written in the old format (until checkpoint59i) if it
187        recognizes an old meta file (no field-list).
188      - add a meta file in exp. which starts from a pickup: 2 cases:
189        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
190         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
191        b) a meta file describing the content of the associated pickup file
192         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
193    o pkg/mdsio & pkg/rw:
194      - new routine to read a meta file ; new set of routine to read
195        Multiple-fields file (with meta file).
196    o added open boundary conditions capability for seaice
197        HSNOW, HSALT, UICE, and VICE
198    
199    checkpoint59i
200    o adjoint:
201      * fix multiDimAdvection adjoint
202        (partial recomputation problem by TAF for fVerT(:,:,kDown)
203        and comlev1 size definition (maxpass vs. max. number of tracers)
204      * verification/global_ocean.90x45x15 adjoint now tests
205        NLFS and multiDimAdvection using DST3 (=30)
206      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
207    o pkg/kpp: add "_d 0" to real constant (if missing);
208      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
209      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
210    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
211      for internal parameters related to restart process (formerly from PARAMS.h)
212      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
213    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
214      as argument. (only atm2d & obcs write_pickup have not yet been updated)
215    o pkg/monitor:
216      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
217      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
218      - account for deep Atmosphere factor and density factor (anelastic)
219    o added open boundary conditions capability for seaice HEFF and AREA
220    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
221      thermodynamics
222      - requires a little reorganization, which affects the testreport results
223        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
224        so that now the conservative form is tested
225      - add a few comments
226    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
227    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
228    o add new diagnostics to seaice: advective, diffusive fluxes (only for
229      multidim-advection, for scheme 2 they are not filled) and transports,
230      thermodynamic growth rates
231    o change units of EmPmR (inside the code, + within coupling interface)
232      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
233      Affects results @ truncation level (cg2d match) and update output of
234       experiments: lab_sea(6), global_ocean.90x40x15(10),
235      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
236      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
237      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
238      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
239    
240    checkpoint59h
241    o pkg/exf:
242      - improve vectorization by moving if-statement out of loops in
243        exf_mapfields, exf_radiation
244      - exf_bulkformulae.F: introduce 2D fields and vectorize code
245    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
246    o testreport:
247      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
248        monitor & update offline_exf_seaice exp. output.
249      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
250    o pkg/seaice:
251      - bug fix in the evp solver: boundary conditions were affected be
252        masking of zMax/zMin (changes results)
253      - minor bug fix in boundary conditions in seaice_calc_strainrates
254        (changes results for no_slip)
255      - seaice_lsr.F: make interpolation of eta dependent on boundaries
256      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
257      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
258        stress formulation and no-slip boundary conditions
259    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
260      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
261    o pkg/seaice: a first HSALT time stepping equation has been checked in
262    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
263      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
264      without requiring DO-IF statements
265    o pkg/thsice:
266      use continuous power-law function for partition of energy between lateral
267      melting/freezing and thinning/thickening ; old code using step function
268      still available with #undef THSICE_FRACEN_POWERLAW
269      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
270    o testreport: change AD testing : check against results/output_adm.txt
271      using same scripts as for forward test.
272    
273    checkpoint59g
274    o adjoint testing: in preparation for changing testreport:
275      - output format: cost and grad written on separated lines
276      - ad output results in directory "results" (instead of "results_ad")
277    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
278    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
279    o pkg/ecco: allow user defined cost function contributions
280    o testreport:
281      Allow to choose (per experiment) the list of tested output variables
282       and the main variable (used to issue a pass/FAIL ) ;
283      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
284      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
285      Also modify printing of summary:
286       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
287       b) echo the list of tested variables in the individual summary.txt of
288          each experiment.
289    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
290      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
291      (but still depend on the tile decompostion of the domain).
292    o pkg/seaice: change a discretization detail to make the B-grid code
293      "more symmetric". This change is likely to remove all "ridges/leads" that
294      where quasi-aligned with the grid in B-grid solutions. It may also be
295      the solution to the stress coupling issues with the B-grid.
296    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
297      remove .cvsignore from input dir. (since testreport no longer run here).
298    o pkg/thsice:
299     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
300     - fix reshaping of sea-ice just after advection:
301       melt all the ice only if ice-volume is too small.
302     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
303       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
304     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
305    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
306      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
307    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
308      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
309      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
310      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
311      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
312      -> update output.txt
313    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
314     this affects truncation error: -> update output.txt of exp:
315      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
316      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
317    
318    checkpoint59f
319    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
320    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
321      a bounded range (in forward mode)
322    o pkg/ecco, ctrl, autodiff and mom_common:
323     internal parameter controls, completements of implementations
324    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
325    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
326      (not seem any difference in testing results).
327    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
328       at face corners.
329    o pkg/generic_advdiff:
330     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
331      loop range indices for computing vertical advection tendency
332      and do the calculation in the interior only (no overlap) ;
333      for now, only implemented for SOM advection (to save CPU time).
334     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
335    o exch2 adjoint
336      First set of changes:
337      - add exch2 hand-written adjoint templates
338      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
339        This will require cleanup in pkg/autodiff/*.F
340        (changed routines currently kept separate in verif. code/)
341      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
342        that used to hide exch2 or cubed-sphere specific code
343        (commented via 'cph-exch2')
344    o pkg/seaice
345      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
346    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
347       output of global_ocean.cs32x15.thsice .
348    
349    checkpoint59e
350    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
351      for B-grid vector (not yet tested) and C-grid vector (<- only used
352      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
353    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
354      (#ifdef ALLOW_SALT_PLUME)
355    o gather_2d/scatter_2d: removed halo regions
356    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
357      scheme and the corresponding test case (under front_relax dir). For now,
358      only available with Skew-flux form and not yet tested in realistic set-up.
359      adjoint: store directives updated, but gradient checks deteriorated,
360      so maybe GM/Redi adjoint is now broken.
361    o seaice adjoint
362      * add AREA, HEFF, HSNOW as control variable
363        (should not change lab_sea results)
364      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
365    o pkg/seaice:
366      * added computation of saltFlux in seaice_growth;
367        For time being, sea ice salinity is assumed constant
368        contribution of snow flooding to freshening of sea ice is neglected.
369        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
370        defaults to 0.0 in order to maintain backward compatibility.
371        Typical values for SEAICE_salinity are 4 to 10 g/kg.
372      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
373      * added SEAICE_availHeatFrac, which specifies fraction of surface level
374        heat content used to melt or grow ice
375      * commented out cap of HICE: it helps keep ice thinner
376      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
377      * applied OBCS T/S mask to HEFFM sea ice mask
378    
379    checkpoint59d
380    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
381     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
382     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
383    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
384     and change default value of parameter "GM_Small_Number";
385     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
386       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
387       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
388    o pkg/ecco: cost function when applying pkg/smooth to controls
389    o pkg/ctrl: add forcingPrecond run time parameter
390    o pkg/seaice:
391     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
392     - fix bug in metric terms of u-equation in LSR solver (implicit part),
393       changes verification/lab_sea
394     - rearrange implicit part of u-equation in LSR solver to make it easier to
395       read, understand, and debug. This causes changes at the truncation level.
396     - fix (serious) bug in the boundary conditions (sign error in the implicit
397       part) of the LSR solver. Changes all LSR results.
398     - fixed problem with HSNOW initialization to avoid thick snow when AREA
399       is initilized with small values - does not change lab_sea results.
400     - added HsnowFile initialization capability
401    o pkg/smooth: addition to model/src and pkg/ctrl so allow
402     initialization of pkg/smooth and application to control vector
403    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
404    o dependencies: pkg/profiles requires pkg/cal
405    o pkg/profiles:
406     - added option ALLOW_PROFILES_GENERICGRID
407         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
408         that interpolation information (grid points and coefficients) is provided
409         within the netcdf input files.
410         -> sample matlab scripts can be found in MITgcm_contrib/gael
411         that allow you to prepare netcdf input files.
412     - also modified: cleaner include statements, cleaner error print statements,
413       cleaner stops when error, and more tests of the netcdf input files consistency.
414    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
415    o pkg/seaice:
416     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
417       requires a new routine: seaice_diagnostics_fill.F
418     - make sure that seaice does not move if not forced (pressure replacement
419       method, Hibler and Ip, 1995), changes results
420     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
421     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
422       It is turned off by default (=-1.), because it changes the results.
423     - make it possible to read AREA from a file, too.
424    
425    checkpoint59c
426    o add S/R and diagnostics for oceanic mixed-layer depth
427    o move GMRedi call after all vertical mixing schemes (including KPP)
428    o pkg/thsice:
429     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
430      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
431    o pkg/obcs:
432     - bug fix for balance code
433    o pkg/seaice:
434      - allow values of SEAICE_elasticParm > 1
435      - add new parameter SEAICE_evpTauRelax as an alternative
436        to SEAICE_elasticParm
437      - make lsr boundary conditions free slip (by default), changes result
438      - add code for no slip boundary conditions for lsr
439      - set minimum of zeta to zero (and not 4e8) (changes results)
440      - add a cap on AREA after advecting AREA if seaice_growth is not called
441    o change calculation of Visbeck K:
442      - no longer depend on tapering scheme; instead, compute slope (limited
443        by GM_maxSlope). this is equivalent to what was comuted before with
444        clipping or linear tappering.
445      - fix vertical averaging (wrong by 1/2 level)
446      - leave the old version (but will not be maintained) within
447        #ifdef OLD_VISBECK_CALC / #endif
448      - update output of exp. ideal_2D_oce
449    o change error catch in calc_r_star to improve vectorization
450    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
451      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
452    o adjoint:
453      Re-organized adjoint checkpointing according to Matt Mazloff
454      (but with modifs/completions/cleanups)
455      Storing is now bundled into large arrays to optimized I/O
456      (and second step in cleanup of the_main_loop)
457    
458    checkpoint59b
459    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
460      - export/import (between ocean & coupler) fields needed for ocean DIC.
461    o pkg/seaice:
462      - get rid of three more exchanges seaice_calc_viscosities (required
463        different loop boundaries in seaice_lsr and seaice_ocean_stress)
464      - bug fix in seaice_ocean_stress (update of lab_sea required)
465      - reduce loop boundaries to necessary minimum also in seaice_evp
466      - go back to the old way of computing deltaC/Z as the adjoint likes that
467        better
468    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
469      passive tracer to an Age Tracer) + update output.txt
470    o pkg/exf:
471      - implement A-grid / C-grid selection for wind-stress input files.
472      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
473      for now, in exf_bulk_largeyeager04.F only :
474      - change implementation for case where windspeed + 2. components wind-stress
475        are read-in. AND use rhoConstFresh to convert evap.
476    o pkg/seaice:
477      - use correct EXCH_UV for wind-forcing (on A-grid).
478      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
479        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
480    o pkg/exf:
481      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
482      EXF_INTERPOLATION:
483      - merge global_with_exf/code version of exf_interp_read.F
484        to the main code ;
485      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
486        reading the file ; Important: This options needs to be defined to recover
487        previous code.
488        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
489      - no longer loose real*8 precision along the way when using exf_iprec=64.
490    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
491      - change discretisation of evp-solver in order to avoid another exchange
492        (changes lab_sea) and clean up a little
493      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
494        help the adjoint (this also changes the results slightly)
495      - add a few "_d 0" where they had been missing in seaice_evp.F
496      - cleaning up: remove unused seaice_calc_rhs.F
497    o pkg/exf: some cleaning-up:
498      - change various "constants" into runtime parameters
499      - cleaned-up Large&Yeager04 routine which should eventually
500        replace exf_bulkformulae.F (changed names of S/R and CPP)
501        and merged various ALLOW_ATM_WIND options
502     only used with thsice pkg (in thsice_get_exf.F):
503      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
504        which are used when useStabilityFct_overIce=TRUE (= the default)
505      - change default values of ice & snow emissivity and scale downward LW
506        by ice & snow emissivity.
507    o pkg/thsice:
508     fix few little problems, in thsice_calc_thickn.F:
509      - growth vertically (and not laterally) if iceFrac == iceMaskMax
510      - melt only laterally if hIce < hThinIce (as the comments say)
511      and in thsice_extend.F:
512      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
513      - start to form ice as soon as the minimum ice-volume is reachable.
514     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
515      and cpl_aim+ocn
516    o pkg/kpp
517     - move computation of surface related input fields to KPP into a new
518       subroutine kpp_forcing_surf.F
519     - remove wrong (within bi,bj loops) EXCH calls.
520     - little cleaning (add argument myThid in last position, cvs header ...)
521     - for now, fix conservation problem by exchanging KPPviscAz (may not
522       be the best fix)
523    o pkg/seaice
524     - check for inconsistent evp parameter/cpp-flag combination
525     - remove leftover errIO flat for obsolete name list error handling
526    o OpenAD
527     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
528    
529    checkpoint59a
530    o pkg/seaice: some parameter clarifications and a little bit of clean up
531    o pkg/thsice: rename run-time parameters:
532       himin       -> hIceMin
533       himin0      -> hThinIce
534       hihig       -> hThickIce
535       i0          -> i0swFrac
536       transCoef   -> bMeltCoef
537       frac_energy -> fracMelting
538      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
539       with default values (for now) that do not change the results.
540      remove old version of thsice vars advection in pkg/seaice.
541    o in FFIELDS.h:
542      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
543      - make pLoad & sIceLoad always available (but still only used if
544         ATMOSPHERIC_LOADING is #define).
545    o pkg/kpp: replaced _KPP_RL with _RL
546    o bug fixes for vertical diffusivity computations when both KPP and
547        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
548        are no longer updating the vertical diffusivity array
549        (passed as argument) but are (re-) setting those arrays.
550    o pkg/seaice: fix bug in evp solver, while doing that
551      - change (improve?) discretization of stress computations for both
552        cgrid-lsr and evp solver
553      - add a new routine to compute strain rates
554      - the above changes lab_sea results
555      - add no slip conditions for evp solver (off by default), lsr-version
556        may follow
557      - fix exchange for shear at Z-points (does not change lab_sea)
558      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
559        (to force the user to pick a time step since there is not "safe" way
560        of choosing it)
561      - add principal stress diagnostics
562      - rearrange fields for evp a little to avoid having to call a: too many
563        exchanges and b: exchanges for stress trensor components which we do
564        not have.
565      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
566        of evp, complete rewrite for lsr case (latter is does not yet work
567        in all cases)
568    o pkg/kpp: add code to have mixing in shelf ice caverns
569      - add myThid to all kpp routines (long overdue)
570    
571    checkpoint59
572    o pkg/exf:
573      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
574        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
575      - move exf header files from lower_case.h to UPPER_CASE.h ;
576        add missing cvs Header & Name
577      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
578      - add namelist param. selectStressGridPosition, exf_monFreq
579      - retire many _CLIM routines, and remove data.exf_clim
580        + params moved to data.exf
581        + climsst, climsss now handled by exf_set_gen, i.e.
582          climss?period=0 refers to constant field,
583          climss?period=-12 to monthly forcing
584      - split up namelists in data.exf
585    o pkg/seaice:
586      - remove seaice_exch and seaice_exch_uv
587      - remove superfluous exchange of theta
588      - add myThid to seaice_budget_ocean/ice
589      - add new interface for atmospheric wind forcing (C-grid only)
590        + new routine
591        + two new field (taux, tauy for stress over ice)
592        + removed one global field (DAIRN) for C-grid case only
593    o pkg/thsise
594      - 2nd set of modifs for thsice adjoint in conjunction with exf
595    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
596    
597    checkpoint58y_post
598    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
599      vertical diffusivity, similar to that in MOM4; turned on using
600      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
601      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
602    o Added capability for 3D specification of background vertical diffusion
603      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
604      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
605      "data" file that contains the 3D vertical diffusivity coefficients.
606    o ice dynamics (pkg/seaice) with thsice thermodynamics:
607      - add code within pkg thsice to advect & diffuse sea-ice fields
608      similar to (and will replace) what has been added in  seaice_advdiff.F,
609      but: - conserving Mass, Heat & Salt.
610           - better when using non-linear advection scheme (not yet fully tested)
611           - can also be used in atmospheric set-up (for now, only the diffusion).
612    
613    checkpoint58x_post
614    o IO option for global-file compact format:
615      - add options when generating topology (utils/exch2/matlab-topology-generator)
616      - add I/O capability (pkg/mdsio).
617      - adapt utils/matlab/rdmds.m to read this format.
618      for now long-line format not yet supported by pkg/mdsio (& exch2).
619    o shelfice: add a few diagnostics
620    
621    checkpoint58w_post
622    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
623      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
624      (and replace horiVertRatio in NH code).
625      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
626                         and tutorial_plume_on_slope (sensitive to truncation)
627    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
628      directly to drive seaice model (C-grid only)
629    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
630     - reintroduce computation of wind from stress,
631     - compute tau (in exf_bulkformulae.F) from windstress averaged to
632       mass points to avoid tau = 0
633     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
634    o rdmnc.m: make it work with "global" files created with gluemnc
635    o rdmnc.m : some improvements in dealing with singleton dimension
636      (tested on all testreport mnc output files).
637    o genmake2: disable pkg/profiles if netcdf test fails.
638    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
639    o move call to cal_readparms up to make calendar parameters/variable available
640      to all packages
641    
642    checkpoint58v_post
643    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
644      useDynP_inEos_Zc tested.
645    o pkg/exf: changes to properly interpolate/mask/scale initial fields
646    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
647      and portions thereof.  See read_cs.txt for description and examples.
648    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
649      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
650      following the great-circle arc between those 2 points.
651    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
652      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
653    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
654     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
655     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
656     - still needs work (not working with some options ; efficiency to improve)
657       and serious testing.
658     - use this scheme for temperature & salinity in 2 advection test exp.:
659       advect_xy & advect_xz, respectively.
660    
661    checkpoint58u_post
662    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
663    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
664    o testreport: add option "-skipdir" to skip some test.
665    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
666      momentum calculation.
667    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
668    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
669      remove checkpoint.F and the_correction_step.F (no longer used);
670      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
671    o add option (linFSConserveTr) to correct for tracer source/sink due to
672      Linear Free surface
673    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
674    o pkg/thsice: fix reading mnc-pickups
675    
676    checkpoint58t_post
677    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
678    o pkg/mdsio:
679     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
680       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
681       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
682     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
683     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
684       either MDS_READ_FIELD or MDS_WRITE_FIELD )
685     - new S/R (to replace MDSWRITEMETA), which allows to write more
686       informations (variable names, time ...) to meta files.
687     - modify rdmds.m to give back the meta file content.
688    o pkg/diagnostics: change vertical interpolation to be safer, and more
689       flexible (define p-levels to interpolate to in data.diagnostics);
690      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
691       diagnostic pointer.
692    o pkg/seaice: more cleaning up of seaice_growth, added many comments
693    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
694    o fix multi-category seaice:
695     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
696       SEAICE_MULTICATEGORY
697     - fix short wave heat flux
698    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
699       and allow to use EVP solver. Change forward lab_sea: test both EVP
700       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
701    o Initial check-in of lab_sea adjoint
702      (very similar to natl_box_adjoint/code_seaice)
703      * used C-grid and EVP solver
704      * used KPP, GM/Redi
705      * uses inAdExact=.TRUE.
706      * gradient checks fail for both ADM and TLM
707        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
708        f.d. gradients actually seem more problematic than ADM, TLM gradients;
709        issue is related to forward mismatch between g77 an ifort
710    o pkg/seaice: overhaul of thermodynamics
711     - growth.F and groatb.F are replaced by new routine seaice_growth.F
712     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
713     - move a few global fields out of SEAICE.h into seaice_growth.F and
714       make them 2D (FICE/QNETO/ ...)
715     - remove FO (it is the same as QNETO)
716     - introduce a few local fields to avoid modifying external fields such
717       as atemp, etc.
718    
719    checkpoint58s_post
720    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
721      changed exf_set_gen.F so that
722        genperiod=0 means input file is one time-constant field and
723        genperiod=-12 means input file contains 12 monthly means
724    o CG2D: use pre-computed solver main-diagonal (stored in common block);
725      this affects truncation error ; generate new output file for exp. which
726      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
727        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
728        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
729        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
730        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
731        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
732    o start implementation of deep-atmosphere and anelastic formulation
733    o verification: remove 2nd copy of input files and use script "prepare_run"
734      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
735    o mom_common/vecinv/fluxform: fix a few initialisation isssues
736    o profiles: fix for multithreaded case
737    
738    o diagnostics: rename few diags:
739      s/'PRESSURE'/'RCENTER '/g
740      s/'TICE    '/'oceFreez'/g
741      s/'TAUX    '/'oceTAUX '/g
742      s/'TAUY    '/'oceTAUY '/g
743      s/'SWFLUX  '/'oceQsw  '/g
744      s/DIFx/DFxE/g
745      s/DIFy/DFyE/g
746      and add few ocean-forcing diagnostics:
747      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
748    o modifications to pkg/seaice/growth.F and budget.F, which change results of
749      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
750      as actual snow thickness.  It now refers everywhere to effective snow
751      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
752    
753    checkpoint58r_post
754    o modifications to pkg/seaice/growth.F, which change results of
755      lab_sea experiment: fixes pertain to melting snow over open water, to
756      masking EVAP under sea ice, and to using the correct AREA variable for
757      computations of EVAP, PRECIP, HSNOW, and GHEFF
758    o add ability to read bathy, salt, and theta using MNC (off by def)
759    o add flooding algorithm and advection of HSNOW for pkg/seaice;
760      both are turned off by default and do no change any results
761    o seaice advection with pkg/thsice: a step toward the use of non-linear
762      advection scheme, but #ifdef or commented out for now (requires more EXCH).
763    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
764      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
765      in natl_box (affects results @ truncation level: update output.txt)
766    o multi-threading and IO:
767      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
768      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
769        (needed to work with SingleCpuIO): tested in all verif. exp.
770    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
771      affects the results (but none of the verification test uses this scheme).
772    o Adding some pkg/diagnostics capability to pkg/seaice
773      (will certainly be subject to changes)
774    o ctrl: adding new control variables:
775      lwflux, lwdown, evap, snowprecip, apressure, runoff
776    
777    checkpoint58q_post
778    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
779      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
780      high_res_cube configuration by 4% on Columbia.
781    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
782      add (in global_with_exf/code) a version of EXF_INTERP_READ without
783      dynamical allocation (seems to work in multi-threaded).
784    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
785      single CPU io) so that TAF does not have to see EESUPPORT.h
786    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
787    
788    checkpoint58p_post
789    o obcs: stop if obcs is used with useCDscheme = .true.
790    o shelfice:
791     - fix a sign error so that no slip at shelfice interface works
792     - remove stop for combination non-hydrostatic code and shelfice. That does
793       not mean, that the results are correct, but at least they are numerically
794       stable
795    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
796    o added adjoint exch routined for all exch*3d* routines
797      and updated flow directives
798    
799    checkpoint58o_post
800    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
801      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
802    o change controling S/R for writing pickup file (new S/R do_write_pickup)
803      and clean-up reading/writing of pickup files.
804    o fix local version of read/write pickup (NH part) in rotating_tank/code
805    o simplify EXCH interface:
806     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
807     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
808    o added the regrid package
809    o shelfice:
810     - add a simple boundary layer scheme to reduce noise
811     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
812    
813    checkpoint58n_post
814    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
815       local variable (not in common block).
816    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
817      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
818      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
819        to work with SingleCpuIO.
820    o add "_d 0" to real constant of pkg/cfc subroutines ;
821       update exp. cfc_exemple & tutorial_cfc_offline output files.
822    o multi-threading and IO:
823      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
824        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
825      - barrier before and after reading.
826      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
827      - avoid using MDS_WRITELOCAL for LAND pkg output.
828      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
829        common-block variables ; Allows multi-threading with master-thread IO.
830    o change default MAX_NO_THREADS from 32 to 4 ;
831      and stop cleanly when MAX_NO_THREADS is too small.
832    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
833    
834    checkpoint58m_post
835    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
836       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
837    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
838       keep global_ocean.90x40x15 (for AD testing) with former secondary test
839       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
840    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
841        add MITgcm_tutorials (= code + all the tutorials)
842    o ecco, option to compute cost for total ssh (mean+anom)
843    o consistent with addition of ptracer and ssh in pkg/profiles
844    o profiles: adding ptracer and ssh
845    o testreport: change multi-test output-file name
846      (from output.txt.{name} to output.{name}.txt)
847    o profiles: now ok for mutli-tiles case
848    o seaice: add 4 parameters for different advection schemes for area,
849      (effective) seaice thickness, enthalphy, and snow height. Their default
850      is the standard parameter SEAICEadvScheme
851    o calc_gw:
852     - add cosFacU in zonal viscous flux (harmonic.visc.).
853     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
854       of tutorial_plume_on_slope.
855    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
856    o calc_gw: true flux-form, account for horizontal grid spacing.
857      update rotating_tank results, but not plume_on_slope (affected at
858      truncation level, 11 digits).
859    
860    checkpoint58l_post
861    o calc_gw:
862     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
863     - remove side-drag for now (need to fix it); update plume_on_slope results.
864     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
865    o commit code to make SST/SSS weights spatially variable
866      (based on either variable in-situ or variable initial T/S weights)
867    o pkg/ecco:
868      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
869        now based on horizontally varying weights wthetaLev, wsaltLev
870      * cost_averagesflags now returns year indices in addition to day, month
871      * sflux balance is performed on annual basis
872        (sflxumm, sfluxmm2, bal_sfluxmm)
873      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
874        including separate counting and multipliers
875    o pkg/rbcs
876      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
877    
878    checkpoint58k_post
879    o testreport:
880     - always build in dir. "build" (if not there, mkdir build instead of building
881       & running in input)
882     - run in dir run (if it exists), in build otherwise.
883     - call prepare_run (if input/prepare_run exists)
884     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
885    o pkg/exf modifications to interpolation and rotation routines for more
886       reasonable treatment of North Pole singularity: for tracers North Pole
887       value is set to northernmost zonal-mean value, for zonal velocity it is
888       set to zero, and for meridional velocity it is set to northernmost value.
889    o pkg/exf/exf_check_range.F
890     - add tile index to diagnostics and move stop statement to the very
891       end of the routine.
892    o pkg/diagnostics: (diagnostics_main_init.F)
893      define title of isomorphic variables according to the current config.
894    o pkg/thsice with pkg/seaice dynamics:
895    - fix domain of computation (interior only, required for exf) and do exchanges
896    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
897    o towards a standard way of dealing with multi-threading in MONITOR
898      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
899    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
900       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
901    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
902    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
903    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
904       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
905    o tracer advection:
906     - clean-up and simplify calc_common_factors.F
907     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
908       advection subroutine (but still not used within DST advection S/R)
909    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
910    
911    checkpoint58j_post
912    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
913      from file (collects calls previously in FORWARD_STEP)
914    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
915    o adjoint store dir. adjusted accordingly
916    o genmake2
917      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
918    
919    checkpoint58i_post
920    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
921      on wind stress (SEAICEstressFactor defaults to 1.)
922    o Total number of Timers is finite (<=40): comment out 2 non-essential one
923      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
924    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
925      on CS-grid: no longer loosing mass.
926    o exf & curvilinear-grid: no longer modify longitude xC & xG.
927    o pkg/ggl90: fix sloppy output and fix a bug
928    o pkg/seaice: added SEAICEuseEVPpickup parameter
929      - Set to false in order to start EVP solver with
930        non-EVP pickup files when using SEAICEuseEVP
931      - fix sign error in diffusion in seaice_calc_rhs
932    
933    checkpoint58h_post
934    * Modifications for bottom topography control
935      o replace hFacC by _hFacC at various places
936      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
937      o add non-self-adjoint cg2d_nsa
938      o update autodiff support routines
939      o re-initialise hfac after ctrl_depth_ini
940      o works for 5x5 box, doesnt work for global_ocean.90x40x15
941    * Adding verification for 5x5 box (4-layer) bottom topography control
942    
943    checkpoint58g_post
944    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
945       used for mean seasonal cycle, mean diurnal cycle); add an example
946       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
947    o pkg/ggl90:
948      - add parameter (minimum surface kinetic energy)
949      - fix bug (avoiding division by zero)
950    o couple pkg/thsice to pkg/seaice:
951      - modify advection in seaice to accomodate new scalar fields to be advected
952      - only muliDimAdection scheme work with seaice/thsice
953      - mapping of thsice-variables to seaice-variables, back and forth
954      - does not break the verification experiments, but does not give the
955        desired results either
956    o pkg/seaice
957      - make (default) second order advection a bit less confusing?
958    
959    checkpoint58f_post
960    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
961      to pkg/seaice):
962      - new routines thsice_map_exf and thsice_get_exf provide the interface
963      - add an additional formal parameter to thsice_solve4temp
964    o pkg/exf:
965      - add new fields wspeed, snowprecip (to be able to couple to thsice)
966      - correct Stefan-Boltzmann constant
967      - new parameter for longwave surface emittance
968      - separate some stuff from exf_bulkformulae into new routines  
969        exf_radiation, exf_wind
970      - add new parameters and constants: longwave emissivity for ocean, ice
971        and snow, evaporation parameters over ice
972      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
973        either wind from stress or stress from wind
974    o pkg/thSIce:
975    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
976    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
977       and THSICE_CALC_THICKN
978    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
979    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
980      to make debugging easier.
981    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
982    o pkg/bulk_force:
983      - clean-up comments and parameters ;
984      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
985    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
986      generate new output for test-experiment: aim.5l_cs.thSI
987    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
988      testreport accordingly
989    
990    checkpoint58e_post
991    o SEAICE_CGRID adjoint done
992    o R_STAR adjoint implemented.
993      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
994      * need to sort out init. of h0facc, etc.
995    o Make pkg/profile fully independent of ecco,cost, etc. stuff
996      to be able to use it in pure forward.
997    
998    checkpoint58d_post
999    o upgrade simple test-experiment to tutorial example:
1000     step.1: duplicate the experiment and (step.2) will remove the old copy.
1001      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1002      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1003      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1004      tutorial_global_oce_biogeo    <- copy of dic_example
1005      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1006      tutorial_plume_on_slope       <- copy of plume_on_slope
1007      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1008      tutorial_global_oce_optim     <- empty for now (David ?)
1009      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1010     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1011    o correct a sign problem in cost_scat.F
1012    o obcs and ptracers: fix boundary conditions for advections schemes
1013      with larger stencil
1014    o thsice adjoint: start
1015    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1016      completeness
1017    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1018      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1019    o ptracers adjoint:
1020      * avoid extensive recomputatations
1021      * fix missing re-init. of gptr (missed by TAF)
1022    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1023      me to turn off the excessive output to STDOUT that this package produces
1024    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1025      and add those terms in Vector-Invariant formulation.
1026    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1027      if the control period (xx_hfluxperiod etc) is 0
1028    o in profiles pkg, clean routines and fix details
1029    o in ecco pkg, reading ssh data:
1030      fix problem in case the model does not start at iter0=0
1031    o fix mnc-pickup/restart for ptracers
1032    o new package prifiles:
1033      code to compute profile-based cost by Gael Forget
1034      (modifs in ecco, ctrl, autodiff)
1035    o Benign bug fix in initialization (spotted by M. Mazloff) of
1036      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1037    
1038    checkpoint58c_post
1039    o adjoint: finish NLFS adjoint and provide reference output in
1040      verification/global_ocean.90x40x15/results_ad_nlfs
1041    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1042      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1043      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1044      with SEAICE_CGRID defined.
1045    o move calendarDumps from "data" to "data.cal" and clean-up the code
1046      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1047    o add useEXF & useCAL flags (for now, set in hard-coded way)
1048    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1049      (were missing in NH mode, and wrong in quasihydrostatic mode).
1050      waiting for Chris updated version of calc_gw to add those CALLs.
1051    o fix bug in quasihydrostatic S/R ;
1052      add a test for this option: global_ocean.90x40x15.qshyd
1053    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1054      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1055    o add on/off flag useOffLine for package OFFLINE
1056    o seaice:
1057      - modify advection so that it works also on the C-grid
1058      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1059        problem in multi-tile runs with C-grid
1060      - add flags for clipping ice velocities and/or masking solver forcing
1061      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1062        C-grid solver
1063      - added a few comments to seaice_diffusion.F
1064      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1065        are now exclusive)
1066      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1067        required re-ordering the code a little:
1068       + make DAIRN global variable (defined in SEAICE)
1069       + move computation of the viscosities eta and zeta into a new separate
1070         routine (because I need to recompute them in seaice_ocean_stress.F)
1071    
1072    checkpoint58b_post
1073    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1074      update output.txt of exp. aim.5l_cs.thSI
1075    o various mnc cleanups and improvements:
1076      + shrink lookup tables by factor of ~4
1077      + better error reporting when running out of lookup space
1078      + able to handle longer path/file names (up to 500 chars)
1079    o adjoint:
1080      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1081      - TBD: "hidden" mom_vecinv recomp. in dynamics
1082    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1083     (allow to differentiate between forcing components using new integer flags:
1084      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1085     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1086    o ecco
1087      - enable trend removal from SSH anomaly obs.
1088    o adjoint
1089      - a fix for PmEpR when #undef EXACT_CONSERV
1090      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1091      - try to fix "hidden" recomp. in forward_step for NLFS
1092        (NLFS seems broken sometimes after I checked it in)
1093    o seaice:
1094     - add c-grid version of the dynamic solver:
1095       + three new routines that are the c-grid substitute lsr, dynsolver
1096         and ostres
1097       + put a few fields that were local to dynsolver into global common
1098         blocks, so that I can move the computation of stresses etc into
1099         seaice_lsr (saves coding but may break the adjoint).
1100     - replace more hardwired parameters by runtime parameters
1101     - add ice masks that mask the rhs of the implicit solvers where there
1102       is no ice (commented out in seaice_dynsolver, because i am not sure
1103       if this works properly), eventually this should replace the clipping
1104       of ice velocities in seaice_dynsolver to +/-40cm/s.
1105    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1106      include it only where its needed
1107    o move balancing of fluxes before the call of external_forcing_surf
1108    o seaice:
1109      - correct units of turning angles (now they are really in degrees)
1110      - move computation of GWATX/Y out of main routine into dynsolver
1111      - initialize GWATX/Y in seaice_init
1112    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1113      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1114    o seaice: add runtime flags for turning angles (default to zero)
1115    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1116      and trend from exf forcing and ctrl control adjustments
1117    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1118      (since checkpoint57x_post)
1119    o change the default rotation period to 86164.s = the Earth rotation
1120    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1121      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1122    o seaice advection: add code for choosing between the default (2nd order
1123      central differences) and multiDim advection schemes provided by
1124      pkg/generic_advdiff
1125    o seaice:
1126      - removed all references to SEAICE_GRID.h fields from
1127        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1128        (cubed-sphere configuration will change a little)
1129      - grid computations in seaice_init are obsolete now.
1130      - cleaned up code a little so that is easier to read (hopefully).
1131      - added new (better?) discretizations of default advection and diffusion
1132        (turn on with SEAICEuseFluxForm)
1133      - replace 1 in 3d global fields by kSurface in growth.F
1134      
1135    checkpoint58a_post
1136    o seaice:
1137      - bug fix in advect.F
1138    o shelfice:
1139      - separate shelfice load anomaly from pload (breaks with time
1140        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1141        Its default is 0., but it may be computed more cleverly from (unknown)
1142        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1143        done offline. A good approximation of the pressure load anomaly is
1144        necessary to avoid large initial adjustment processes underneath
1145        deep-reaching shelfice.
1146      - small fix in ISOMIP shelfice_thermodynamics
1147      - add more sophisticated thermodynamics of Hellmer (1989), this is
1148        now the default
1149      - give a few constants more intuitive names
1150    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1151      if bulk formulae are used in long integration (especially EmPmR). Turn
1152      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1153      if balancePrintMean, the imbalance that is substracted is printed to
1154      STDOUT.
1155    o fix bug (typo) in obcs_apply_eta.F
1156    o add a new package shelfice which enables us to model the circulation
1157      underneath shelf-ice with draughts of hundreds of meters.
1158     - works
1159     - to do: + include improved thermodynamics
1160              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1161                instead of new field kTopC
1162              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1163                instead of new field R_shelfIce and new code in ini_depth.F
1164                and ini_mask_etc.F?
1165              + adjust vertical mixing schemes?
1166    o seaice pkg:
1167     - add a cpp-flag to include a simple formula for a salinity dependent
1168       freezing point of sea water at the surface
1169     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1170       meridional stresses are now different (and hopefully correct)
1171    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1172       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1173       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1174    o pkg/diagnostics: add options and parameters for regional-statistics
1175       diagnostics ; define regions by reading a region-mask from a file
1176       (might add other options later)
1177    o pkg/bulk_force:
1178     - add option and parameters to use AIM surface-flux formulae.
1179     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1180       others forcing fields (defined in PARM05, parameter file "data") are loaded
1181       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1182     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1183     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1184     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1185       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1186     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1187    
1188    checkpoint58
1189    o add "--embed-source" option to genmake2 which, when the supporting
1190      tools can be compiled (as determined by genmake2) will turn on the
1191      embed_files package which then embeds the entire MITgcm source code
1192      (*.[fFhc] + Makefile) used for the build within the executable
1193      - requested by CNH but off by default
1194      - adds a paltry <9MB to the mitgcmuv executable in most cases
1195      - only writes the output when useEMBEDSRC in eedata is true
1196    o clean up 3-dim. relaxation codes:
1197      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1198      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1199      * Thanks to Tom Haine for testing!
1200    
1201    checkpoint57z_post
1202    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1203      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1204    o fix the pickup behavior for obcs in combination with ptracers
1205    o fix a bug in ptracers_external_fields_load
1206    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1207      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1208    o transfered surface NH pressure to eta field (if exactConserv).
1209    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1210         and update lab_sea output.txt file.
1211    o completing 3-dim. relaxation code: additional term
1212         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1213      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1214      * At compile time, in "EXF_OPTIONS.h" set
1215          #define  ALLOW_CLIMTEMP_RELAXATION
1216          #define  ALLOW_CLIMSALT_RELAXATION
1217      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1218          tauThetaClimRelax3Dim = 15552000.0,
1219          tauSaltClimRelax3Dim  = 15552000.0,
1220      * 3 cases:
1221          1) Use a constant-in-time 3-dim. field
1222          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1223          3) Real-time relax. to time-evolving prescribed field
1224    o Adding Laplacian-type smoothness constraint on
1225      initial and boundary (forcing) controls (ic, bc)
1226      * enable at compile-time via
1227        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1228      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1229      * Absolute scale somewhat unclear so far
1230      * no area weighting was included since no other cost term does so far
1231    
1232    checkpoint57y_post
1233    First step for a NLFS adjoint
1234    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1235    o new init. routines for calc_r_star, calc_surf_dr
1236    o still need to deal with ini_masks_etc
1237    o testreport seemed happy
1238    checkpoint57y_pre
1239    
1240    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1241    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1242    o add new offset feature to offline pkg (plus minor cleanup)
1243    o cfc fixes for final year of integration
1244    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1245      be in GCHEM_OPTIONS).
1246    
1247    checkpoint57x_post
1248    o fix testreport Pb in multiple test experiment.
1249    o cleanup our namelist syntax in verification:
1250      - make it more F95 standards compliant (some work still needed)
1251      - allows the vast majority of our tests to work with gfortran
1252    o Non-Hydrostatic:
1253     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1254     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1255    o Allow to apply AB on T,S rather than on AB(gT,gS):
1256     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1257     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1258       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1259     - need a "clever" read_pickup to restart from the other AB formulation
1260    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1261    o remove some unused variables (reduces number of compiler warnings)
1262    o adjoint
1263      * Disable useVariableViscosity for adjoint for time being
1264        (there are a number of extensive recomputations)
1265      * Initialize certain variables needed for adjoint
1266    
1267    checkpoint57w_post
1268    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1269                 fix the singleCpuIO RS version of MDSWRITEFIELD
1270       and add a WARNING if using globalFiles=T with multi-processors.
1271    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1272      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1273    o tracer advection scheme:
1274      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1275       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1276       was not very convenient).
1277      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1278       (further tests needed for the implicit DST & Flux-Limiter schemes).
1279    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1280      and sRef for convenience, handy, when you want to initialize
1281      ptracers in a large domain with a constant non-zero value. Also,
1282      untangle ptracers_init.F a little.
1283    
1284    checkpoint57v_post
1285    o change dome exp. to use variable viscosity in side-drag terms.
1286    o remove all the files from the cfc_offline test since they are now
1287      incorporated into tutorial_cfc_offline which has been producing
1288      identical results for a few days of testing
1289    o add new parameter: sideDragFactor to enable half-slip-side BC
1290      and change side-drag S/R to use viscosity from mom_calc_visc
1291      (can switch back by setting sideDragFactor=0.); affects results at
1292      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1293       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1294    o vorticity & strain are now computed without masking, to account for
1295      no-slip-side BC in variable viscosity calculation ; mask is applied
1296      anyway later on, before computing advection/coriolis terms.
1297    o modify exp4 to test new obcs support for reading from external files
1298      and for passive tracers
1299    o fix behavior of ptracers_monitor when monitor output is written to a
1300      netcdf-file; still not independent of monitor.F (writes in the same
1301      file).
1302    o change default value of tRef (put a uniform, meaningful value for ocean
1303      & atmos) and initialize sRef (was missing, as Martin mentioned).
1304    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1305      to be proportional to enstrophy dissipation length.  Thus,
1306       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1307      This is now consistent with Smagorinsky and with the manual.
1308    
1309    checkpoint57u_post
1310    o OBCS and PTRACERS: add open boundary support for passive tracers
1311      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1312        OB-values from file; this is not different from the way theta and salinity
1313        are treated
1314      - however, Orlanski-radiation conditions are not supported, and the model
1315        will stop if you use pTracers and Orlanski at the same time.
1316      - beefed up the rountine obcs_external_fields_load: now only those open
1317        boundary values are overwritten with values from files for which there
1318        are really files, otherwise the OB-fields remain untouched. This makes
1319        it possible to use different OBs at different ends of the domain (as
1320        with EXF)
1321    o reduce number of exch calls in shap_filt (s2).
1322    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1323      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1324    
1325    checkpoint57t_post
1326    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1327    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1328      same truncation, independent of the face number: affects affects several
1329      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1330    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1331      note that biharmonic viscosity + no-slip was not tested in any experiment.
1332    o fix bug in non-linear free-surf side-drag ; generate new output for
1333      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1334    o make mnc honor the writeBinaryPrec flag for most kinds of output
1335    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1336    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1337      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1338    o add brackets in multi-terms sum to get same truncation, independent of
1339      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1340      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1341    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1342      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1343      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1344      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1345      Suggested values of viscosity parameters found in mom_calc_visc.
1346      Many new viscosity diagnostics available.
1347    
1348    checkpoint57s_post
1349    o Add clearing-house for viscosity calculations, mom_calc_visc and
1350      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1351      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1352      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1353      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1354      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1355      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1356      ViscAhStrain and viscAhTension are now retired.
1357    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1358    o In response to JMC's bug report, genmake2 now ignores any soft-links
1359      that it finds in the *current* directory when searching for files.
1360      Soft-links found in any other source directories will still work as
1361      they did before.
1362    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1363      a C routine to unlimit the stack size
1364    o mnc-ify pkg/aim snapshot vars
1365    o mnc-ify pkg/land as requested by Daniel
1366    o various changes to mnc including:
1367      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1368      - output can now be grouped so that all files within a group
1369          change the ITER portion of their names in lock-step together
1370      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1371          and works with both EXCH1 and EXCH2 (but needs more testing)
1372      - writing works for all verification test cases w/ g77 on Linux
1373    
1374    checkpoint57r_post
1375    o make MNC variable initialization happen earlier
1376    o add diagnostics for (almost) each term of the momentum Eq.
1377    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1378    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1379    o remove MINIMAL_TAVE_OUTPUT option ;
1380      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1381    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1382      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1383    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1384    o add time-dependent SST, SSS control
1385    o cost terms in ecco/ modularized (new cost_generic.F)
1386    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1387    o new infrastructure for seaice model vs. obs misfits in seaice/
1388      * driver from the_main_loop.F is seaice_cost_driver.F
1389      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1390      * gradient check in Exp. 6a of natl_box_adjoint/
1391    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1392      (see README file)
1393    
1394    checkpoint57q_post
1395    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1396    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1397      - bug was reported by Jean-Michel and Ian Fenty
1398    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1399      update exp. cpl_aim+ocn output.
1400    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1401      Needed for high-res. runs with large global files
1402      to be able to limit tapelev size
1403    o Changed some tests for adjoint:
1404      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1405      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1406      * global_ocean.90x40x15/ back to default 3-level checkpointing
1407    o Modifications to enable scripted COMMON to MODULE conversion
1408      * verification/OpenAD/code/ has necessary scripts and description;
1409      * converts, compiles and runs successfully;
1410    
1411    checkpoint57p_post
1412    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1413    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1414      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1415    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1416    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1417      (was already the case for dissipation with mom_vecinv,
1418       and also the case for grad.PhiHyd when staggered-timeStep)
1419      This will allow to put dissipation out-off the AB time-stepping.
1420     Unfortunately, affects truncation error. Update output of exp. that "fails"
1421      (cg2d matching number) and leave the others for later: front_relax(10),
1422      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1423      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1424    
1425    checkpoint57o_post
1426    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1427      (2) its ready to be documented during the 20050801 DocFest
1428    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1429      for ideal_2D_oce and lab_sea on linux_ia32_g77
1430    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1431      in global1x1_tot/code_seaice_adj to access indices 32, 33
1432      (worth another tag)
1433    
1434    checkpoint57n_post
1435    o adding precip control xx_precip 32
1436    o adding swflux control xx_swflux 33
1437    o Replacing 10 forcing penalty cost routines by 1 generic.
1438    o Implementing partitioning in time-mean and variable adjustment
1439      for atmos. state.
1440    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1441  o in natl_box_adjoint:  o in natl_box_adjoint:
1442    * updated: results_bulk/    * updated exp 1 to 10
1443    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
1444    o updated global1x1/*_seaice_adj/
1445      to incorporate latest changes
1446    o enable useSingleCpuIO for mdsio vector routines
1447      (applies in particular to tapelev I/O)
1448    o removed inefficient K-loop in all active_file*control*.F
1449    
1450  checkpoint57m_post  checkpoint57m_post
1451  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)

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