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revision 1.638 by heimbach, Thu Mar 23 19:59:59 2006 UTC revision 1.967 by jmc, Mon Mar 24 00:33:31 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 in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
8      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
9      also fix diagnostics VISCAHW & VISCA4W.
10    
11    checkpoint59o
12    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
13    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
14      move a few statemens out the main loop into separate loops
15    o pkg/shelfice:
16      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
17        (kg/m^2/s), does not break tests, because in verification/isomip,
18        rhoConstFresh=rhoConst (by accident)
19      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
20      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
21        new file model/src/seawater.F, so that they are available for all pkgs.
22      - convert potential temperature into in-situ temperature. This changes the
23        isomip tests => update tests
24    o add a flag writePickupAtEnd (default=true) to be able to suppress
25      writing a pickup at the last timestep
26    o tools/mpack-1.6 :
27      - disable automake (not working) and autoconf (not needed).
28      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
29        also cleaner with much less compilation warnings.
30    o pkg/profiles:
31      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
32      (for "less than 32 characters name" compiler requirement)
33    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
34      conditions that have a different sampling frequency than S/T/U/V obcs
35    o pkg/diagnostics (stats-diags):
36      - fix global Min/Max in case 1 processor get only empty tiles
37    o genmake2: replace (4 times)
38         make genmake_tc_1.o >> genmake_warnings 2>&1
39      with
40         COMM="$CC $CFLAGS -c genmake_tc_1.c"
41         echo $COMM >> genmake_warnings
42         $COMM >> genmake_warnings 2>&1
43      to make genmake2 always see the value of CC as specified in the optfile.
44    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
45      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
46      - modify verification advect_cs test to test SOM-advection on CS-grid.
47    o pkg/ctrl:
48      - Rewrite of ctrl_map_ini_ecco.F,
49        introducing a generic routine (ctrl_map_ini_gen.F).
50      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
51    
52    checkpoint59n
53    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
54      number in dedicate array "hdiag":
55      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
56        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
57      - many small changes (integer format) for large number of diagnostics
58      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
59        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
60    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
61      usingSphericalGrid, this allows to define the rotated grid coordinates
62      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
63      geographical coordinates according to the inverse of the rotation defined
64      by the Euler angles, so that Coriolis parameter and online-interpolation by
65      exf works with the geographical coordinates on XC/YC/XG/YG.
66      Naturally, this feature does not work with all packages, so some
67      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
68      profiles), because there the coordinates are assumed to be regular
69      spherical grid coordinates.
70    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
71      - introduce isopycnal diffusion coefficient control.
72    o tools/adjoint_options:
73      - additional control vector components.
74    o pkg/mnc: have mnc create marginally meaning full coordinate variables
75      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
76    o pkg/mypackage:
77      - add example of read/write pickup for state-var ;
78      - add entry points to the main code for state-vars diags & write-pickup.
79    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
80      transitions for useExfYearlyFields
81      - add new subroutine that determines the file to read from for
82        use*YearlyFields = .TRUE. and .FALSE.
83      - add a verification experiment to global_with_exf that tests
84        useExfYearlyFields with USE_EXF_INTERPOLATION defined
85    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
86      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
87      subroutines (which could be generated from a template, because they are
88      almost identical), for now they are included in obcs_prescribe_read.F for
89      simplicity
90    o pkg/exf:
91      - add a little more diagnostic to exf_interp_read (in analogy to
92        mds_read_field, can be turned off with debugLevel < debugLevA=1)
93      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
94        ugly but fast by unrolling short inner loops, inserting a unroll=8
95        directive in routine lagran, and splitting a loop and making do while the
96        outermost loop (the latter requires the intoduction of index arrays)
97    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
98    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
99      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
100    o verification/seaice_obcs: updated for restart test and latest options
101    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
102      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
103      for now this is only available for the C-grid code and also within
104      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
105    
106    checkpoint59m
107    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
108      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
109    o gad_som : fix flux output (& diagnostics) to have same units as other  
110      advection scheme fluxes (was previously multiplied by deltaT).  
111    o added verification/seaice_obcs both to test seaice open boundaries
112      and to provide an example matlab scrpt for generating them
113    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
114    o pkg/salt_plume: clean up salt_plume_frac.F to
115      remove redundancy in PlumeMethod 1 and 4
116    o pkg/kpp: added saltplume diagnostics
117    o pkg/obcs and pkg/seaice:
118      - do not set uice and vice to zero when OB*icefile are unspecified
119      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
120      - moved seaice tracer obcs after call to seaice_growth
121    o pkg/salt_plume: added various options for salt plume depth
122      criterion and for vertical distribution of the salt
123    
124    checkpoint59l
125    o pkg/ptracers: new version of ptracers pickup:
126      read meta file and write only fields which are needed to restart.
127      ( same logic as main pickup file ; also using pickupStrictlyMatch )
128    o pkg/seaice:
129      - add timescale for melting due to warm mixed layer as a means of
130        setting SEAICE_availHeatFrac more conveniently
131      - add a CPP-flag/runtime parameter check for flooding algorithm
132      - reformulated availHeat in seaice_growth.F to be independent of AREA
133    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
134      unit changes
135    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
136    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
137      SX vector computer.
138    o pkg/seaice:
139      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
140        seaice forcing fields can now be read only through pkg/exf
141      - removed some unused halos
142    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
143    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
144      or U/VICE from U/VWIND before computing U/VSTRESS
145    
146    checkpoint59k
147    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
148      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
149    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
150      all experiments pass when compile with un-initialised var. checking option.
151    o added pkg/salt_plume
152    o script to test restart (for now, in MITgcm_contrib/jmc_script)
153    o pkg/seaice: new read/write pickup version.
154      read meta file and write only fields which are needed to restart.
155      ( same logic as main pickup file ; also using pickupStrictlyMatch )
156    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
157    o lab_sea.hb87: modify the domain & update output.hb87.txt :
158      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
159      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
160      process. Fixed here by closing the domain at the Northern boundary.
161    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
162    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
163      a set of consecutive levels in/from a 3-D array.
164    o pkg/ptracers:
165      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
166      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
167    
168    checkpoint59j
169    o in pkgs: dic, obcs, offline, rbcs:
170      standard way to compute coeff. for time interpolation between 2 time reccords
171      which retains full precision (& make results less dependent on compiler).
172      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
173    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
174      packages instead of reading ice cover and wind speed separately
175    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
176     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
177      to allow to compile customized code before the update)
178    o cleaning-up:
179      - fix CPP instruction syntax in pkg/obcs
180      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
181        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
182      - fix some threads issue in IO parts.
183    o pkg/dic:
184      - add tons of "_d 0" (--> much better testreports !)
185       and then update outputs of tutorial_global_oce_biogeo
186    o pkg/mom_fluxform:
187      add a special version of momentum advection intended to conserve momentum
188      next to a bathymetry step or a coastline edge. (default = off = #undef)
189    o new read/write pickup version:
190      - for now, only implemented for main (mdsio) pickup file.
191      - write out only what is needed to restart; merge pickup_nh , pickup_ph
192        and main pickup together.
193      - read meta file; read only what is needed to restart; stop if a field
194        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
195        if it make sense (even if the restart is not perfect).
196      - if no meta file, assume that pickup to read corresponds exactly to
197        a pickup that would currently be written.
198      - read pickup written in the old format (until checkpoint59i) if it
199        recognizes an old meta file (no field-list).
200      - add a meta file in exp. which starts from a pickup: 2 cases:
201        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
202         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
203        b) a meta file describing the content of the associated pickup file
204         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
205    o pkg/mdsio & pkg/rw:
206      - new routine to read a meta file ; new set of routine to read
207        Multiple-fields file (with meta file).
208    o added open boundary conditions capability for seaice
209        HSNOW, HSALT, UICE, and VICE
210    
211    checkpoint59i
212    o adjoint:
213      * fix multiDimAdvection adjoint
214        (partial recomputation problem by TAF for fVerT(:,:,kDown)
215        and comlev1 size definition (maxpass vs. max. number of tracers)
216      * verification/global_ocean.90x45x15 adjoint now tests
217        NLFS and multiDimAdvection using DST3 (=30)
218      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
219    o pkg/kpp: add "_d 0" to real constant (if missing);
220      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
221      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
222    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
223      for internal parameters related to restart process (formerly from PARAMS.h)
224      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
225    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
226      as argument. (only atm2d & obcs write_pickup have not yet been updated)
227    o pkg/monitor:
228      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
229      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
230      - account for deep Atmosphere factor and density factor (anelastic)
231    o added open boundary conditions capability for seaice HEFF and AREA
232    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
233      thermodynamics
234      - requires a little reorganization, which affects the testreport results
235        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
236        so that now the conservative form is tested
237      - add a few comments
238    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
239    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
240    o add new diagnostics to seaice: advective, diffusive fluxes (only for
241      multidim-advection, for scheme 2 they are not filled) and transports,
242      thermodynamic growth rates
243    o change units of EmPmR (inside the code, + within coupling interface)
244      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
245      Affects results @ truncation level (cg2d match) and update output of
246       experiments: lab_sea(6), global_ocean.90x40x15(10),
247      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
248      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
249      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
250      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
251    
252    checkpoint59h
253    o pkg/exf:
254      - improve vectorization by moving if-statement out of loops in
255        exf_mapfields, exf_radiation
256      - exf_bulkformulae.F: introduce 2D fields and vectorize code
257    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
258    o testreport:
259      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
260        monitor & update offline_exf_seaice exp. output.
261      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
262    o pkg/seaice:
263      - bug fix in the evp solver: boundary conditions were affected be
264        masking of zMax/zMin (changes results)
265      - minor bug fix in boundary conditions in seaice_calc_strainrates
266        (changes results for no_slip)
267      - seaice_lsr.F: make interpolation of eta dependent on boundaries
268      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
269      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
270        stress formulation and no-slip boundary conditions
271    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
272      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
273    o pkg/seaice: a first HSALT time stepping equation has been checked in
274    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
275      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
276      without requiring DO-IF statements
277    o pkg/thsice:
278      use continuous power-law function for partition of energy between lateral
279      melting/freezing and thinning/thickening ; old code using step function
280      still available with #undef THSICE_FRACEN_POWERLAW
281      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
282    o testreport: change AD testing : check against results/output_adm.txt
283      using same scripts as for forward test.
284    
285    checkpoint59g
286    o adjoint testing: in preparation for changing testreport:
287      - output format: cost and grad written on separated lines
288      - ad output results in directory "results" (instead of "results_ad")
289    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
290    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
291    o pkg/ecco: allow user defined cost function contributions
292    o testreport:
293      Allow to choose (per experiment) the list of tested output variables
294       and the main variable (used to issue a pass/FAIL ) ;
295      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
296      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
297      Also modify printing of summary:
298       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
299       b) echo the list of tested variables in the individual summary.txt of
300          each experiment.
301    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
302      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
303      (but still depend on the tile decompostion of the domain).
304    o pkg/seaice: change a discretization detail to make the B-grid code
305      "more symmetric". This change is likely to remove all "ridges/leads" that
306      where quasi-aligned with the grid in B-grid solutions. It may also be
307      the solution to the stress coupling issues with the B-grid.
308    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
309      remove .cvsignore from input dir. (since testreport no longer run here).
310    o pkg/thsice:
311     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
312     - fix reshaping of sea-ice just after advection:
313       melt all the ice only if ice-volume is too small.
314     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
315       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
316     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
317    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
318      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
319    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
320      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
321      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
322      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
323      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
324      -> update output.txt
325    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
326     this affects truncation error: -> update output.txt of exp:
327      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
328      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
329    
330    checkpoint59f
331    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
332    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
333      a bounded range (in forward mode)
334    o pkg/ecco, ctrl, autodiff and mom_common:
335     internal parameter controls, completements of implementations
336    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
337    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
338      (not seem any difference in testing results).
339    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
340       at face corners.
341    o pkg/generic_advdiff:
342     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
343      loop range indices for computing vertical advection tendency
344      and do the calculation in the interior only (no overlap) ;
345      for now, only implemented for SOM advection (to save CPU time).
346     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
347    o exch2 adjoint
348      First set of changes:
349      - add exch2 hand-written adjoint templates
350      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
351        This will require cleanup in pkg/autodiff/*.F
352        (changed routines currently kept separate in verif. code/)
353      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
354        that used to hide exch2 or cubed-sphere specific code
355        (commented via 'cph-exch2')
356    o pkg/seaice
357      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
358    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
359       output of global_ocean.cs32x15.thsice .
360    
361    checkpoint59e
362    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
363      for B-grid vector (not yet tested) and C-grid vector (<- only used
364      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
365    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
366      (#ifdef ALLOW_SALT_PLUME)
367    o gather_2d/scatter_2d: removed halo regions
368    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
369      scheme and the corresponding test case (under front_relax dir). For now,
370      only available with Skew-flux form and not yet tested in realistic set-up.
371      adjoint: store directives updated, but gradient checks deteriorated,
372      so maybe GM/Redi adjoint is now broken.
373    o seaice adjoint
374      * add AREA, HEFF, HSNOW as control variable
375        (should not change lab_sea results)
376      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
377    o pkg/seaice:
378      * added computation of saltFlux in seaice_growth;
379        For time being, sea ice salinity is assumed constant
380        contribution of snow flooding to freshening of sea ice is neglected.
381        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
382        defaults to 0.0 in order to maintain backward compatibility.
383        Typical values for SEAICE_salinity are 4 to 10 g/kg.
384      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
385      * added SEAICE_availHeatFrac, which specifies fraction of surface level
386        heat content used to melt or grow ice
387      * commented out cap of HICE: it helps keep ice thinner
388      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
389      * applied OBCS T/S mask to HEFFM sea ice mask
390    
391    checkpoint59d
392    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
393     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
394     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
395    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
396     and change default value of parameter "GM_Small_Number";
397     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
398       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
399       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
400    o pkg/ecco: cost function when applying pkg/smooth to controls
401    o pkg/ctrl: add forcingPrecond run time parameter
402    o pkg/seaice:
403     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
404     - fix bug in metric terms of u-equation in LSR solver (implicit part),
405       changes verification/lab_sea
406     - rearrange implicit part of u-equation in LSR solver to make it easier to
407       read, understand, and debug. This causes changes at the truncation level.
408     - fix (serious) bug in the boundary conditions (sign error in the implicit
409       part) of the LSR solver. Changes all LSR results.
410     - fixed problem with HSNOW initialization to avoid thick snow when AREA
411       is initilized with small values - does not change lab_sea results.
412     - added HsnowFile initialization capability
413    o pkg/smooth: addition to model/src and pkg/ctrl so allow
414     initialization of pkg/smooth and application to control vector
415    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
416    o dependencies: pkg/profiles requires pkg/cal
417    o pkg/profiles:
418     - added option ALLOW_PROFILES_GENERICGRID
419         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
420         that interpolation information (grid points and coefficients) is provided
421         within the netcdf input files.
422         -> sample matlab scripts can be found in MITgcm_contrib/gael
423         that allow you to prepare netcdf input files.
424     - also modified: cleaner include statements, cleaner error print statements,
425       cleaner stops when error, and more tests of the netcdf input files consistency.
426    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
427    o pkg/seaice:
428     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
429       requires a new routine: seaice_diagnostics_fill.F
430     - make sure that seaice does not move if not forced (pressure replacement
431       method, Hibler and Ip, 1995), changes results
432     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
433     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
434       It is turned off by default (=-1.), because it changes the results.
435     - make it possible to read AREA from a file, too.
436    
437    checkpoint59c
438    o add S/R and diagnostics for oceanic mixed-layer depth
439    o move GMRedi call after all vertical mixing schemes (including KPP)
440    o pkg/thsice:
441     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
442      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
443    o pkg/obcs:
444     - bug fix for balance code
445    o pkg/seaice:
446      - allow values of SEAICE_elasticParm > 1
447      - add new parameter SEAICE_evpTauRelax as an alternative
448        to SEAICE_elasticParm
449      - make lsr boundary conditions free slip (by default), changes result
450      - add code for no slip boundary conditions for lsr
451      - set minimum of zeta to zero (and not 4e8) (changes results)
452      - add a cap on AREA after advecting AREA if seaice_growth is not called
453    o change calculation of Visbeck K:
454      - no longer depend on tapering scheme; instead, compute slope (limited
455        by GM_maxSlope). this is equivalent to what was comuted before with
456        clipping or linear tappering.
457      - fix vertical averaging (wrong by 1/2 level)
458      - leave the old version (but will not be maintained) within
459        #ifdef OLD_VISBECK_CALC / #endif
460      - update output of exp. ideal_2D_oce
461    o change error catch in calc_r_star to improve vectorization
462    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
463      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
464    o adjoint:
465      Re-organized adjoint checkpointing according to Matt Mazloff
466      (but with modifs/completions/cleanups)
467      Storing is now bundled into large arrays to optimized I/O
468      (and second step in cleanup of the_main_loop)
469    
470    checkpoint59b
471    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
472      - export/import (between ocean & coupler) fields needed for ocean DIC.
473    o pkg/seaice:
474      - get rid of three more exchanges seaice_calc_viscosities (required
475        different loop boundaries in seaice_lsr and seaice_ocean_stress)
476      - bug fix in seaice_ocean_stress (update of lab_sea required)
477      - reduce loop boundaries to necessary minimum also in seaice_evp
478      - go back to the old way of computing deltaC/Z as the adjoint likes that
479        better
480    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
481      passive tracer to an Age Tracer) + update output.txt
482    o pkg/exf:
483      - implement A-grid / C-grid selection for wind-stress input files.
484      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
485      for now, in exf_bulk_largeyeager04.F only :
486      - change implementation for case where windspeed + 2. components wind-stress
487        are read-in. AND use rhoConstFresh to convert evap.
488    o pkg/seaice:
489      - use correct EXCH_UV for wind-forcing (on A-grid).
490      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
491        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
492    o pkg/exf:
493      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
494      EXF_INTERPOLATION:
495      - merge global_with_exf/code version of exf_interp_read.F
496        to the main code ;
497      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
498        reading the file ; Important: This options needs to be defined to recover
499        previous code.
500        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
501      - no longer loose real*8 precision along the way when using exf_iprec=64.
502    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
503      - change discretisation of evp-solver in order to avoid another exchange
504        (changes lab_sea) and clean up a little
505      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
506        help the adjoint (this also changes the results slightly)
507      - add a few "_d 0" where they had been missing in seaice_evp.F
508      - cleaning up: remove unused seaice_calc_rhs.F
509    o pkg/exf: some cleaning-up:
510      - change various "constants" into runtime parameters
511      - cleaned-up Large&Yeager04 routine which should eventually
512        replace exf_bulkformulae.F (changed names of S/R and CPP)
513        and merged various ALLOW_ATM_WIND options
514     only used with thsice pkg (in thsice_get_exf.F):
515      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
516        which are used when useStabilityFct_overIce=TRUE (= the default)
517      - change default values of ice & snow emissivity and scale downward LW
518        by ice & snow emissivity.
519    o pkg/thsice:
520     fix few little problems, in thsice_calc_thickn.F:
521      - growth vertically (and not laterally) if iceFrac == iceMaskMax
522      - melt only laterally if hIce < hThinIce (as the comments say)
523      and in thsice_extend.F:
524      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
525      - start to form ice as soon as the minimum ice-volume is reachable.
526     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
527      and cpl_aim+ocn
528    o pkg/kpp
529     - move computation of surface related input fields to KPP into a new
530       subroutine kpp_forcing_surf.F
531     - remove wrong (within bi,bj loops) EXCH calls.
532     - little cleaning (add argument myThid in last position, cvs header ...)
533     - for now, fix conservation problem by exchanging KPPviscAz (may not
534       be the best fix)
535    o pkg/seaice
536     - check for inconsistent evp parameter/cpp-flag combination
537     - remove leftover errIO flat for obsolete name list error handling
538    o OpenAD
539     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
540    
541    checkpoint59a
542    o pkg/seaice: some parameter clarifications and a little bit of clean up
543    o pkg/thsice: rename run-time parameters:
544       himin       -> hIceMin
545       himin0      -> hThinIce
546       hihig       -> hThickIce
547       i0          -> i0swFrac
548       transCoef   -> bMeltCoef
549       frac_energy -> fracMelting
550      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
551       with default values (for now) that do not change the results.
552      remove old version of thsice vars advection in pkg/seaice.
553    o in FFIELDS.h:
554      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
555      - make pLoad & sIceLoad always available (but still only used if
556         ATMOSPHERIC_LOADING is #define).
557    o pkg/kpp: replaced _KPP_RL with _RL
558    o bug fixes for vertical diffusivity computations when both KPP and
559        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
560        are no longer updating the vertical diffusivity array
561        (passed as argument) but are (re-) setting those arrays.
562    o pkg/seaice: fix bug in evp solver, while doing that
563      - change (improve?) discretization of stress computations for both
564        cgrid-lsr and evp solver
565      - add a new routine to compute strain rates
566      - the above changes lab_sea results
567      - add no slip conditions for evp solver (off by default), lsr-version
568        may follow
569      - fix exchange for shear at Z-points (does not change lab_sea)
570      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
571        (to force the user to pick a time step since there is not "safe" way
572        of choosing it)
573      - add principal stress diagnostics
574      - rearrange fields for evp a little to avoid having to call a: too many
575        exchanges and b: exchanges for stress trensor components which we do
576        not have.
577      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
578        of evp, complete rewrite for lsr case (latter is does not yet work
579        in all cases)
580    o pkg/kpp: add code to have mixing in shelf ice caverns
581      - add myThid to all kpp routines (long overdue)
582    
583    checkpoint59
584    o pkg/exf:
585      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
586        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
587      - move exf header files from lower_case.h to UPPER_CASE.h ;
588        add missing cvs Header & Name
589      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
590      - add namelist param. selectStressGridPosition, exf_monFreq
591      - retire many _CLIM routines, and remove data.exf_clim
592        + params moved to data.exf
593        + climsst, climsss now handled by exf_set_gen, i.e.
594          climss?period=0 refers to constant field,
595          climss?period=-12 to monthly forcing
596      - split up namelists in data.exf
597    o pkg/seaice:
598      - remove seaice_exch and seaice_exch_uv
599      - remove superfluous exchange of theta
600      - add myThid to seaice_budget_ocean/ice
601      - add new interface for atmospheric wind forcing (C-grid only)
602        + new routine
603        + two new field (taux, tauy for stress over ice)
604        + removed one global field (DAIRN) for C-grid case only
605    o pkg/thsise
606      - 2nd set of modifs for thsice adjoint in conjunction with exf
607    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
608    
609    checkpoint58y_post
610    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
611      vertical diffusivity, similar to that in MOM4; turned on using
612      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
613      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
614    o Added capability for 3D specification of background vertical diffusion
615      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
616      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
617      "data" file that contains the 3D vertical diffusivity coefficients.
618    o ice dynamics (pkg/seaice) with thsice thermodynamics:
619      - add code within pkg thsice to advect & diffuse sea-ice fields
620      similar to (and will replace) what has been added in  seaice_advdiff.F,
621      but: - conserving Mass, Heat & Salt.
622           - better when using non-linear advection scheme (not yet fully tested)
623           - can also be used in atmospheric set-up (for now, only the diffusion).
624    
625    checkpoint58x_post
626    o IO option for global-file compact format:
627      - add options when generating topology (utils/exch2/matlab-topology-generator)
628      - add I/O capability (pkg/mdsio).
629      - adapt utils/matlab/rdmds.m to read this format.
630      for now long-line format not yet supported by pkg/mdsio (& exch2).
631    o shelfice: add a few diagnostics
632    
633    checkpoint58w_post
634    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
635      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
636      (and replace horiVertRatio in NH code).
637      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
638                         and tutorial_plume_on_slope (sensitive to truncation)
639    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
640      directly to drive seaice model (C-grid only)
641    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
642     - reintroduce computation of wind from stress,
643     - compute tau (in exf_bulkformulae.F) from windstress averaged to
644       mass points to avoid tau = 0
645     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
646    o rdmnc.m: make it work with "global" files created with gluemnc
647    o rdmnc.m : some improvements in dealing with singleton dimension
648      (tested on all testreport mnc output files).
649    o genmake2: disable pkg/profiles if netcdf test fails.
650    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
651    o move call to cal_readparms up to make calendar parameters/variable available
652      to all packages
653    
654    checkpoint58v_post
655    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
656      useDynP_inEos_Zc tested.
657    o pkg/exf: changes to properly interpolate/mask/scale initial fields
658    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
659      and portions thereof.  See read_cs.txt for description and examples.
660    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
661      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
662      following the great-circle arc between those 2 points.
663    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
664      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
665    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
666     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
667     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
668     - still needs work (not working with some options ; efficiency to improve)
669       and serious testing.
670     - use this scheme for temperature & salinity in 2 advection test exp.:
671       advect_xy & advect_xz, respectively.
672    
673    checkpoint58u_post
674    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
675    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
676    o testreport: add option "-skipdir" to skip some test.
677    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
678      momentum calculation.
679    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
680    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
681      remove checkpoint.F and the_correction_step.F (no longer used);
682      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
683    o add option (linFSConserveTr) to correct for tracer source/sink due to
684      Linear Free surface
685    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
686    o pkg/thsice: fix reading mnc-pickups
687    
688    checkpoint58t_post
689    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
690    o pkg/mdsio:
691     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
692       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
693       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
694     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
695     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
696       either MDS_READ_FIELD or MDS_WRITE_FIELD )
697     - new S/R (to replace MDSWRITEMETA), which allows to write more
698       informations (variable names, time ...) to meta files.
699     - modify rdmds.m to give back the meta file content.
700    o pkg/diagnostics: change vertical interpolation to be safer, and more
701       flexible (define p-levels to interpolate to in data.diagnostics);
702      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
703       diagnostic pointer.
704    o pkg/seaice: more cleaning up of seaice_growth, added many comments
705    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
706    o fix multi-category seaice:
707     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
708       SEAICE_MULTICATEGORY
709     - fix short wave heat flux
710    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
711       and allow to use EVP solver. Change forward lab_sea: test both EVP
712       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
713    o Initial check-in of lab_sea adjoint
714      (very similar to natl_box_adjoint/code_seaice)
715      * used C-grid and EVP solver
716      * used KPP, GM/Redi
717      * uses inAdExact=.TRUE.
718      * gradient checks fail for both ADM and TLM
719        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
720        f.d. gradients actually seem more problematic than ADM, TLM gradients;
721        issue is related to forward mismatch between g77 an ifort
722    o pkg/seaice: overhaul of thermodynamics
723     - growth.F and groatb.F are replaced by new routine seaice_growth.F
724     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
725     - move a few global fields out of SEAICE.h into seaice_growth.F and
726       make them 2D (FICE/QNETO/ ...)
727     - remove FO (it is the same as QNETO)
728     - introduce a few local fields to avoid modifying external fields such
729       as atemp, etc.
730    
731    checkpoint58s_post
732    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
733      changed exf_set_gen.F so that
734        genperiod=0 means input file is one time-constant field and
735        genperiod=-12 means input file contains 12 monthly means
736    o CG2D: use pre-computed solver main-diagonal (stored in common block);
737      this affects truncation error ; generate new output file for exp. which
738      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
739        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
740        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
741        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
742        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
743        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
744    o start implementation of deep-atmosphere and anelastic formulation
745    o verification: remove 2nd copy of input files and use script "prepare_run"
746      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
747    o mom_common/vecinv/fluxform: fix a few initialisation isssues
748    o profiles: fix for multithreaded case
749    
750    o diagnostics: rename few diags:
751      s/'PRESSURE'/'RCENTER '/g
752      s/'TICE    '/'oceFreez'/g
753      s/'TAUX    '/'oceTAUX '/g
754      s/'TAUY    '/'oceTAUY '/g
755      s/'SWFLUX  '/'oceQsw  '/g
756      s/DIFx/DFxE/g
757      s/DIFy/DFyE/g
758      and add few ocean-forcing diagnostics:
759      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
760    o modifications to pkg/seaice/growth.F and budget.F, which change results of
761      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
762      as actual snow thickness.  It now refers everywhere to effective snow
763      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
764    
765    checkpoint58r_post
766    o modifications to pkg/seaice/growth.F, which change results of
767      lab_sea experiment: fixes pertain to melting snow over open water, to
768      masking EVAP under sea ice, and to using the correct AREA variable for
769      computations of EVAP, PRECIP, HSNOW, and GHEFF
770    o add ability to read bathy, salt, and theta using MNC (off by def)
771    o add flooding algorithm and advection of HSNOW for pkg/seaice;
772      both are turned off by default and do no change any results
773    o seaice advection with pkg/thsice: a step toward the use of non-linear
774      advection scheme, but #ifdef or commented out for now (requires more EXCH).
775    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
776      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
777      in natl_box (affects results @ truncation level: update output.txt)
778    o multi-threading and IO:
779      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
780      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
781        (needed to work with SingleCpuIO): tested in all verif. exp.
782    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
783      affects the results (but none of the verification test uses this scheme).
784    o Adding some pkg/diagnostics capability to pkg/seaice
785      (will certainly be subject to changes)
786    o ctrl: adding new control variables:
787      lwflux, lwdown, evap, snowprecip, apressure, runoff
788    
789    checkpoint58q_post
790    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
791      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
792      high_res_cube configuration by 4% on Columbia.
793    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
794      add (in global_with_exf/code) a version of EXF_INTERP_READ without
795      dynamical allocation (seems to work in multi-threaded).
796    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
797      single CPU io) so that TAF does not have to see EESUPPORT.h
798    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
799    
800    checkpoint58p_post
801    o obcs: stop if obcs is used with useCDscheme = .true.
802    o shelfice:
803     - fix a sign error so that no slip at shelfice interface works
804     - remove stop for combination non-hydrostatic code and shelfice. That does
805       not mean, that the results are correct, but at least they are numerically
806       stable
807    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
808    o added adjoint exch routined for all exch*3d* routines
809      and updated flow directives
810    
811    checkpoint58o_post
812    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
813      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
814    o change controling S/R for writing pickup file (new S/R do_write_pickup)
815      and clean-up reading/writing of pickup files.
816    o fix local version of read/write pickup (NH part) in rotating_tank/code
817    o simplify EXCH interface:
818     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
819     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
820    o added the regrid package
821    o shelfice:
822     - add a simple boundary layer scheme to reduce noise
823     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
824    
825    checkpoint58n_post
826    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
827       local variable (not in common block).
828    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
829      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
830      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
831        to work with SingleCpuIO.
832    o add "_d 0" to real constant of pkg/cfc subroutines ;
833       update exp. cfc_exemple & tutorial_cfc_offline output files.
834    o multi-threading and IO:
835      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
836        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
837      - barrier before and after reading.
838      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
839      - avoid using MDS_WRITELOCAL for LAND pkg output.
840      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
841        common-block variables ; Allows multi-threading with master-thread IO.
842    o change default MAX_NO_THREADS from 32 to 4 ;
843      and stop cleanly when MAX_NO_THREADS is too small.
844    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
845    
846    checkpoint58m_post
847    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
848       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
849    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
850       keep global_ocean.90x40x15 (for AD testing) with former secondary test
851       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
852    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
853        add MITgcm_tutorials (= code + all the tutorials)
854    o ecco, option to compute cost for total ssh (mean+anom)
855    o consistent with addition of ptracer and ssh in pkg/profiles
856    o profiles: adding ptracer and ssh
857    o testreport: change multi-test output-file name
858      (from output.txt.{name} to output.{name}.txt)
859    o profiles: now ok for mutli-tiles case
860    o seaice: add 4 parameters for different advection schemes for area,
861      (effective) seaice thickness, enthalphy, and snow height. Their default
862      is the standard parameter SEAICEadvScheme
863    o calc_gw:
864     - add cosFacU in zonal viscous flux (harmonic.visc.).
865     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
866       of tutorial_plume_on_slope.
867    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
868    o calc_gw: true flux-form, account for horizontal grid spacing.
869      update rotating_tank results, but not plume_on_slope (affected at
870      truncation level, 11 digits).
871    
872    checkpoint58l_post
873    o calc_gw:
874     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
875     - remove side-drag for now (need to fix it); update plume_on_slope results.
876     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
877    o commit code to make SST/SSS weights spatially variable
878      (based on either variable in-situ or variable initial T/S weights)
879    o pkg/ecco:
880      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
881        now based on horizontally varying weights wthetaLev, wsaltLev
882      * cost_averagesflags now returns year indices in addition to day, month
883      * sflux balance is performed on annual basis
884        (sflxumm, sfluxmm2, bal_sfluxmm)
885      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
886        including separate counting and multipliers
887    o pkg/rbcs
888      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
889    
890    checkpoint58k_post
891    o testreport:
892     - always build in dir. "build" (if not there, mkdir build instead of building
893       & running in input)
894     - run in dir run (if it exists), in build otherwise.
895     - call prepare_run (if input/prepare_run exists)
896     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
897    o pkg/exf modifications to interpolation and rotation routines for more
898       reasonable treatment of North Pole singularity: for tracers North Pole
899       value is set to northernmost zonal-mean value, for zonal velocity it is
900       set to zero, and for meridional velocity it is set to northernmost value.
901    o pkg/exf/exf_check_range.F
902     - add tile index to diagnostics and move stop statement to the very
903       end of the routine.
904    o pkg/diagnostics: (diagnostics_main_init.F)
905      define title of isomorphic variables according to the current config.
906    o pkg/thsice with pkg/seaice dynamics:
907    - fix domain of computation (interior only, required for exf) and do exchanges
908    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
909    o towards a standard way of dealing with multi-threading in MONITOR
910      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
911    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
912       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
913    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
914    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
915    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
916       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
917    o tracer advection:
918     - clean-up and simplify calc_common_factors.F
919     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
920       advection subroutine (but still not used within DST advection S/R)
921    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
922    
923    checkpoint58j_post
924    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
925      from file (collects calls previously in FORWARD_STEP)
926    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
927    o adjoint store dir. adjusted accordingly
928    o genmake2
929      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
930    
931    checkpoint58i_post
932    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
933      on wind stress (SEAICEstressFactor defaults to 1.)
934    o Total number of Timers is finite (<=40): comment out 2 non-essential one
935      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
936    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
937      on CS-grid: no longer loosing mass.
938    o exf & curvilinear-grid: no longer modify longitude xC & xG.
939    o pkg/ggl90: fix sloppy output and fix a bug
940    o pkg/seaice: added SEAICEuseEVPpickup parameter
941      - Set to false in order to start EVP solver with
942        non-EVP pickup files when using SEAICEuseEVP
943      - fix sign error in diffusion in seaice_calc_rhs
944    
945    checkpoint58h_post
946    * Modifications for bottom topography control
947      o replace hFacC by _hFacC at various places
948      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
949      o add non-self-adjoint cg2d_nsa
950      o update autodiff support routines
951      o re-initialise hfac after ctrl_depth_ini
952      o works for 5x5 box, doesnt work for global_ocean.90x40x15
953    * Adding verification for 5x5 box (4-layer) bottom topography control
954    
955    checkpoint58g_post
956    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
957       used for mean seasonal cycle, mean diurnal cycle); add an example
958       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
959    o pkg/ggl90:
960      - add parameter (minimum surface kinetic energy)
961      - fix bug (avoiding division by zero)
962    o couple pkg/thsice to pkg/seaice:
963      - modify advection in seaice to accomodate new scalar fields to be advected
964      - only muliDimAdection scheme work with seaice/thsice
965      - mapping of thsice-variables to seaice-variables, back and forth
966      - does not break the verification experiments, but does not give the
967        desired results either
968    o pkg/seaice
969      - make (default) second order advection a bit less confusing?
970    
971    checkpoint58f_post
972    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
973      to pkg/seaice):
974      - new routines thsice_map_exf and thsice_get_exf provide the interface
975      - add an additional formal parameter to thsice_solve4temp
976    o pkg/exf:
977      - add new fields wspeed, snowprecip (to be able to couple to thsice)
978      - correct Stefan-Boltzmann constant
979      - new parameter for longwave surface emittance
980      - separate some stuff from exf_bulkformulae into new routines  
981        exf_radiation, exf_wind
982      - add new parameters and constants: longwave emissivity for ocean, ice
983        and snow, evaporation parameters over ice
984      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
985        either wind from stress or stress from wind
986    o pkg/thSIce:
987    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
988    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
989       and THSICE_CALC_THICKN
990    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
991    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
992      to make debugging easier.
993    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
994    o pkg/bulk_force:
995      - clean-up comments and parameters ;
996      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
997    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
998      generate new output for test-experiment: aim.5l_cs.thSI
999    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1000      testreport accordingly
1001    
1002    checkpoint58e_post
1003    o SEAICE_CGRID adjoint done
1004    o R_STAR adjoint implemented.
1005      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1006      * need to sort out init. of h0facc, etc.
1007    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1008      to be able to use it in pure forward.
1009    
1010    checkpoint58d_post
1011    o upgrade simple test-experiment to tutorial example:
1012     step.1: duplicate the experiment and (step.2) will remove the old copy.
1013      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1014      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1015      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1016      tutorial_global_oce_biogeo    <- copy of dic_example
1017      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1018      tutorial_plume_on_slope       <- copy of plume_on_slope
1019      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1020      tutorial_global_oce_optim     <- empty for now (David ?)
1021      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1022     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1023    o correct a sign problem in cost_scat.F
1024    o obcs and ptracers: fix boundary conditions for advections schemes
1025      with larger stencil
1026    o thsice adjoint: start
1027    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1028      completeness
1029    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1030      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1031    o ptracers adjoint:
1032      * avoid extensive recomputatations
1033      * fix missing re-init. of gptr (missed by TAF)
1034    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1035      me to turn off the excessive output to STDOUT that this package produces
1036    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1037      and add those terms in Vector-Invariant formulation.
1038    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1039      if the control period (xx_hfluxperiod etc) is 0
1040    o in profiles pkg, clean routines and fix details
1041    o in ecco pkg, reading ssh data:
1042      fix problem in case the model does not start at iter0=0
1043    o fix mnc-pickup/restart for ptracers
1044    o new package prifiles:
1045      code to compute profile-based cost by Gael Forget
1046      (modifs in ecco, ctrl, autodiff)
1047    o Benign bug fix in initialization (spotted by M. Mazloff) of
1048      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1049    
1050  checkpoint58c_post  checkpoint58c_post
1051  o adjoint: finish NLFS adjoint and provide reference output in  o adjoint: finish NLFS adjoint and provide reference output in
1052    verification/global_ocean.90x40x15/results_ad_nlfs    verification/global_ocean.90x40x15/results_ad_nlfs

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