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revision 1.733 by jmc, Tue Oct 17 19:08:57 2006 UTC revision 1.968 by mlosch, Wed Mar 26 10:10:05 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 pkg/seaice: add a line to the summary to indicate grid type (B/C)
8    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
9      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
10      also fix diagnostics VISCAHW & VISCA4W.
11    
12    checkpoint59o
13    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
14    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
15      move a few statemens out the main loop into separate loops
16    o pkg/shelfice:
17      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
18        (kg/m^2/s), does not break tests, because in verification/isomip,
19        rhoConstFresh=rhoConst (by accident)
20      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
21      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
22        new file model/src/seawater.F, so that they are available for all pkgs.
23      - convert potential temperature into in-situ temperature. This changes the
24        isomip tests => update tests
25    o add a flag writePickupAtEnd (default=true) to be able to suppress
26      writing a pickup at the last timestep
27    o tools/mpack-1.6 :
28      - disable automake (not working) and autoconf (not needed).
29      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
30        also cleaner with much less compilation warnings.
31    o pkg/profiles:
32      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
33      (for "less than 32 characters name" compiler requirement)
34    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
35      conditions that have a different sampling frequency than S/T/U/V obcs
36    o pkg/diagnostics (stats-diags):
37      - fix global Min/Max in case 1 processor get only empty tiles
38    o genmake2: replace (4 times)
39         make genmake_tc_1.o >> genmake_warnings 2>&1
40      with
41         COMM="$CC $CFLAGS -c genmake_tc_1.c"
42         echo $COMM >> genmake_warnings
43         $COMM >> genmake_warnings 2>&1
44      to make genmake2 always see the value of CC as specified in the optfile.
45    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
46      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
47      - modify verification advect_cs test to test SOM-advection on CS-grid.
48    o pkg/ctrl:
49      - Rewrite of ctrl_map_ini_ecco.F,
50        introducing a generic routine (ctrl_map_ini_gen.F).
51      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
52    
53    checkpoint59n
54    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
55      number in dedicate array "hdiag":
56      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
57        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
58      - many small changes (integer format) for large number of diagnostics
59      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
60        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
61    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
62      usingSphericalGrid, this allows to define the rotated grid coordinates
63      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
64      geographical coordinates according to the inverse of the rotation defined
65      by the Euler angles, so that Coriolis parameter and online-interpolation by
66      exf works with the geographical coordinates on XC/YC/XG/YG.
67      Naturally, this feature does not work with all packages, so some
68      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
69      profiles), because there the coordinates are assumed to be regular
70      spherical grid coordinates.
71    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
72      - introduce isopycnal diffusion coefficient control.
73    o tools/adjoint_options:
74      - additional control vector components.
75    o pkg/mnc: have mnc create marginally meaning full coordinate variables
76      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
77    o pkg/mypackage:
78      - add example of read/write pickup for state-var ;
79      - add entry points to the main code for state-vars diags & write-pickup.
80    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
81      transitions for useExfYearlyFields
82      - add new subroutine that determines the file to read from for
83        use*YearlyFields = .TRUE. and .FALSE.
84      - add a verification experiment to global_with_exf that tests
85        useExfYearlyFields with USE_EXF_INTERPOLATION defined
86    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
87      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
88      subroutines (which could be generated from a template, because they are
89      almost identical), for now they are included in obcs_prescribe_read.F for
90      simplicity
91    o pkg/exf:
92      - add a little more diagnostic to exf_interp_read (in analogy to
93        mds_read_field, can be turned off with debugLevel < debugLevA=1)
94      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
95        ugly but fast by unrolling short inner loops, inserting a unroll=8
96        directive in routine lagran, and splitting a loop and making do while the
97        outermost loop (the latter requires the intoduction of index arrays)
98    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
99    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
100      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
101    o verification/seaice_obcs: updated for restart test and latest options
102    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
103      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
104      for now this is only available for the C-grid code and also within
105      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
106    
107    checkpoint59m
108    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
109      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
110    o gad_som : fix flux output (& diagnostics) to have same units as other  
111      advection scheme fluxes (was previously multiplied by deltaT).  
112    o added verification/seaice_obcs both to test seaice open boundaries
113      and to provide an example matlab scrpt for generating them
114    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
115    o pkg/salt_plume: clean up salt_plume_frac.F to
116      remove redundancy in PlumeMethod 1 and 4
117    o pkg/kpp: added saltplume diagnostics
118    o pkg/obcs and pkg/seaice:
119      - do not set uice and vice to zero when OB*icefile are unspecified
120      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
121      - moved seaice tracer obcs after call to seaice_growth
122    o pkg/salt_plume: added various options for salt plume depth
123      criterion and for vertical distribution of the salt
124    
125    checkpoint59l
126    o pkg/ptracers: new version of ptracers pickup:
127      read meta file and write only fields which are needed to restart.
128      ( same logic as main pickup file ; also using pickupStrictlyMatch )
129    o pkg/seaice:
130      - add timescale for melting due to warm mixed layer as a means of
131        setting SEAICE_availHeatFrac more conveniently
132      - add a CPP-flag/runtime parameter check for flooding algorithm
133      - reformulated availHeat in seaice_growth.F to be independent of AREA
134    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
135      unit changes
136    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
137    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
138      SX vector computer.
139    o pkg/seaice:
140      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
141        seaice forcing fields can now be read only through pkg/exf
142      - removed some unused halos
143    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
144    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
145      or U/VICE from U/VWIND before computing U/VSTRESS
146    
147    checkpoint59k
148    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
149      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
150    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
151      all experiments pass when compile with un-initialised var. checking option.
152    o added pkg/salt_plume
153    o script to test restart (for now, in MITgcm_contrib/jmc_script)
154    o pkg/seaice: new read/write pickup version.
155      read meta file and write only fields which are needed to restart.
156      ( same logic as main pickup file ; also using pickupStrictlyMatch )
157    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
158    o lab_sea.hb87: modify the domain & update output.hb87.txt :
159      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
160      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
161      process. Fixed here by closing the domain at the Northern boundary.
162    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
163    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
164      a set of consecutive levels in/from a 3-D array.
165    o pkg/ptracers:
166      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
167      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
168    
169    checkpoint59j
170    o in pkgs: dic, obcs, offline, rbcs:
171      standard way to compute coeff. for time interpolation between 2 time reccords
172      which retains full precision (& make results less dependent on compiler).
173      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
174    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
175      packages instead of reading ice cover and wind speed separately
176    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
177     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
178      to allow to compile customized code before the update)
179    o cleaning-up:
180      - fix CPP instruction syntax in pkg/obcs
181      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
182        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
183      - fix some threads issue in IO parts.
184    o pkg/dic:
185      - add tons of "_d 0" (--> much better testreports !)
186       and then update outputs of tutorial_global_oce_biogeo
187    o pkg/mom_fluxform:
188      add a special version of momentum advection intended to conserve momentum
189      next to a bathymetry step or a coastline edge. (default = off = #undef)
190    o new read/write pickup version:
191      - for now, only implemented for main (mdsio) pickup file.
192      - write out only what is needed to restart; merge pickup_nh , pickup_ph
193        and main pickup together.
194      - read meta file; read only what is needed to restart; stop if a field
195        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
196        if it make sense (even if the restart is not perfect).
197      - if no meta file, assume that pickup to read corresponds exactly to
198        a pickup that would currently be written.
199      - read pickup written in the old format (until checkpoint59i) if it
200        recognizes an old meta file (no field-list).
201      - add a meta file in exp. which starts from a pickup: 2 cases:
202        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
203         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
204        b) a meta file describing the content of the associated pickup file
205         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
206    o pkg/mdsio & pkg/rw:
207      - new routine to read a meta file ; new set of routine to read
208        Multiple-fields file (with meta file).
209    o added open boundary conditions capability for seaice
210        HSNOW, HSALT, UICE, and VICE
211    
212    checkpoint59i
213    o adjoint:
214      * fix multiDimAdvection adjoint
215        (partial recomputation problem by TAF for fVerT(:,:,kDown)
216        and comlev1 size definition (maxpass vs. max. number of tracers)
217      * verification/global_ocean.90x45x15 adjoint now tests
218        NLFS and multiDimAdvection using DST3 (=30)
219      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
220    o pkg/kpp: add "_d 0" to real constant (if missing);
221      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
222      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
223    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
224      for internal parameters related to restart process (formerly from PARAMS.h)
225      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
226    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
227      as argument. (only atm2d & obcs write_pickup have not yet been updated)
228    o pkg/monitor:
229      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
230      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
231      - account for deep Atmosphere factor and density factor (anelastic)
232    o added open boundary conditions capability for seaice HEFF and AREA
233    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
234      thermodynamics
235      - requires a little reorganization, which affects the testreport results
236        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
237        so that now the conservative form is tested
238      - add a few comments
239    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
240    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
241    o add new diagnostics to seaice: advective, diffusive fluxes (only for
242      multidim-advection, for scheme 2 they are not filled) and transports,
243      thermodynamic growth rates
244    o change units of EmPmR (inside the code, + within coupling interface)
245      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
246      Affects results @ truncation level (cg2d match) and update output of
247       experiments: lab_sea(6), global_ocean.90x40x15(10),
248      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
249      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
250      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
251      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
252    
253    checkpoint59h
254    o pkg/exf:
255      - improve vectorization by moving if-statement out of loops in
256        exf_mapfields, exf_radiation
257      - exf_bulkformulae.F: introduce 2D fields and vectorize code
258    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
259    o testreport:
260      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
261        monitor & update offline_exf_seaice exp. output.
262      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
263    o pkg/seaice:
264      - bug fix in the evp solver: boundary conditions were affected be
265        masking of zMax/zMin (changes results)
266      - minor bug fix in boundary conditions in seaice_calc_strainrates
267        (changes results for no_slip)
268      - seaice_lsr.F: make interpolation of eta dependent on boundaries
269      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
270      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
271        stress formulation and no-slip boundary conditions
272    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
273      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
274    o pkg/seaice: a first HSALT time stepping equation has been checked in
275    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
276      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
277      without requiring DO-IF statements
278    o pkg/thsice:
279      use continuous power-law function for partition of energy between lateral
280      melting/freezing and thinning/thickening ; old code using step function
281      still available with #undef THSICE_FRACEN_POWERLAW
282      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
283    o testreport: change AD testing : check against results/output_adm.txt
284      using same scripts as for forward test.
285    
286    checkpoint59g
287    o adjoint testing: in preparation for changing testreport:
288      - output format: cost and grad written on separated lines
289      - ad output results in directory "results" (instead of "results_ad")
290    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
291    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
292    o pkg/ecco: allow user defined cost function contributions
293    o testreport:
294      Allow to choose (per experiment) the list of tested output variables
295       and the main variable (used to issue a pass/FAIL ) ;
296      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
297      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
298      Also modify printing of summary:
299       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
300       b) echo the list of tested variables in the individual summary.txt of
301          each experiment.
302    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
303      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
304      (but still depend on the tile decompostion of the domain).
305    o pkg/seaice: change a discretization detail to make the B-grid code
306      "more symmetric". This change is likely to remove all "ridges/leads" that
307      where quasi-aligned with the grid in B-grid solutions. It may also be
308      the solution to the stress coupling issues with the B-grid.
309    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
310      remove .cvsignore from input dir. (since testreport no longer run here).
311    o pkg/thsice:
312     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
313     - fix reshaping of sea-ice just after advection:
314       melt all the ice only if ice-volume is too small.
315     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
316       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
317     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
318    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
319      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
320    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
321      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
322      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
323      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
324      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
325      -> update output.txt
326    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
327     this affects truncation error: -> update output.txt of exp:
328      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
329      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
330    
331    checkpoint59f
332    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
333    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
334      a bounded range (in forward mode)
335    o pkg/ecco, ctrl, autodiff and mom_common:
336     internal parameter controls, completements of implementations
337    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
338    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
339      (not seem any difference in testing results).
340    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
341       at face corners.
342    o pkg/generic_advdiff:
343     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
344      loop range indices for computing vertical advection tendency
345      and do the calculation in the interior only (no overlap) ;
346      for now, only implemented for SOM advection (to save CPU time).
347     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
348    o exch2 adjoint
349      First set of changes:
350      - add exch2 hand-written adjoint templates
351      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
352        This will require cleanup in pkg/autodiff/*.F
353        (changed routines currently kept separate in verif. code/)
354      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
355        that used to hide exch2 or cubed-sphere specific code
356        (commented via 'cph-exch2')
357    o pkg/seaice
358      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
359    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
360       output of global_ocean.cs32x15.thsice .
361    
362    checkpoint59e
363    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
364      for B-grid vector (not yet tested) and C-grid vector (<- only used
365      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
366    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
367      (#ifdef ALLOW_SALT_PLUME)
368    o gather_2d/scatter_2d: removed halo regions
369    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
370      scheme and the corresponding test case (under front_relax dir). For now,
371      only available with Skew-flux form and not yet tested in realistic set-up.
372      adjoint: store directives updated, but gradient checks deteriorated,
373      so maybe GM/Redi adjoint is now broken.
374    o seaice adjoint
375      * add AREA, HEFF, HSNOW as control variable
376        (should not change lab_sea results)
377      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
378    o pkg/seaice:
379      * added computation of saltFlux in seaice_growth;
380        For time being, sea ice salinity is assumed constant
381        contribution of snow flooding to freshening of sea ice is neglected.
382        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
383        defaults to 0.0 in order to maintain backward compatibility.
384        Typical values for SEAICE_salinity are 4 to 10 g/kg.
385      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
386      * added SEAICE_availHeatFrac, which specifies fraction of surface level
387        heat content used to melt or grow ice
388      * commented out cap of HICE: it helps keep ice thinner
389      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
390      * applied OBCS T/S mask to HEFFM sea ice mask
391    
392    checkpoint59d
393    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
394     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
395     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
396    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
397     and change default value of parameter "GM_Small_Number";
398     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
399       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
400       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
401    o pkg/ecco: cost function when applying pkg/smooth to controls
402    o pkg/ctrl: add forcingPrecond run time parameter
403    o pkg/seaice:
404     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
405     - fix bug in metric terms of u-equation in LSR solver (implicit part),
406       changes verification/lab_sea
407     - rearrange implicit part of u-equation in LSR solver to make it easier to
408       read, understand, and debug. This causes changes at the truncation level.
409     - fix (serious) bug in the boundary conditions (sign error in the implicit
410       part) of the LSR solver. Changes all LSR results.
411     - fixed problem with HSNOW initialization to avoid thick snow when AREA
412       is initilized with small values - does not change lab_sea results.
413     - added HsnowFile initialization capability
414    o pkg/smooth: addition to model/src and pkg/ctrl so allow
415     initialization of pkg/smooth and application to control vector
416    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
417    o dependencies: pkg/profiles requires pkg/cal
418    o pkg/profiles:
419     - added option ALLOW_PROFILES_GENERICGRID
420         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
421         that interpolation information (grid points and coefficients) is provided
422         within the netcdf input files.
423         -> sample matlab scripts can be found in MITgcm_contrib/gael
424         that allow you to prepare netcdf input files.
425     - also modified: cleaner include statements, cleaner error print statements,
426       cleaner stops when error, and more tests of the netcdf input files consistency.
427    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
428    o pkg/seaice:
429     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
430       requires a new routine: seaice_diagnostics_fill.F
431     - make sure that seaice does not move if not forced (pressure replacement
432       method, Hibler and Ip, 1995), changes results
433     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
434     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
435       It is turned off by default (=-1.), because it changes the results.
436     - make it possible to read AREA from a file, too.
437    
438    checkpoint59c
439    o add S/R and diagnostics for oceanic mixed-layer depth
440    o move GMRedi call after all vertical mixing schemes (including KPP)
441    o pkg/thsice:
442     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
443      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
444    o pkg/obcs:
445     - bug fix for balance code
446    o pkg/seaice:
447      - allow values of SEAICE_elasticParm > 1
448      - add new parameter SEAICE_evpTauRelax as an alternative
449        to SEAICE_elasticParm
450      - make lsr boundary conditions free slip (by default), changes result
451      - add code for no slip boundary conditions for lsr
452      - set minimum of zeta to zero (and not 4e8) (changes results)
453      - add a cap on AREA after advecting AREA if seaice_growth is not called
454    o change calculation of Visbeck K:
455      - no longer depend on tapering scheme; instead, compute slope (limited
456        by GM_maxSlope). this is equivalent to what was comuted before with
457        clipping or linear tappering.
458      - fix vertical averaging (wrong by 1/2 level)
459      - leave the old version (but will not be maintained) within
460        #ifdef OLD_VISBECK_CALC / #endif
461      - update output of exp. ideal_2D_oce
462    o change error catch in calc_r_star to improve vectorization
463    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
464      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
465    o adjoint:
466      Re-organized adjoint checkpointing according to Matt Mazloff
467      (but with modifs/completions/cleanups)
468      Storing is now bundled into large arrays to optimized I/O
469      (and second step in cleanup of the_main_loop)
470    
471    checkpoint59b
472    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
473      - export/import (between ocean & coupler) fields needed for ocean DIC.
474    o pkg/seaice:
475      - get rid of three more exchanges seaice_calc_viscosities (required
476        different loop boundaries in seaice_lsr and seaice_ocean_stress)
477      - bug fix in seaice_ocean_stress (update of lab_sea required)
478      - reduce loop boundaries to necessary minimum also in seaice_evp
479      - go back to the old way of computing deltaC/Z as the adjoint likes that
480        better
481    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
482      passive tracer to an Age Tracer) + update output.txt
483    o pkg/exf:
484      - implement A-grid / C-grid selection for wind-stress input files.
485      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
486      for now, in exf_bulk_largeyeager04.F only :
487      - change implementation for case where windspeed + 2. components wind-stress
488        are read-in. AND use rhoConstFresh to convert evap.
489    o pkg/seaice:
490      - use correct EXCH_UV for wind-forcing (on A-grid).
491      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
492        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
493    o pkg/exf:
494      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
495      EXF_INTERPOLATION:
496      - merge global_with_exf/code version of exf_interp_read.F
497        to the main code ;
498      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
499        reading the file ; Important: This options needs to be defined to recover
500        previous code.
501        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
502      - no longer loose real*8 precision along the way when using exf_iprec=64.
503    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
504      - change discretisation of evp-solver in order to avoid another exchange
505        (changes lab_sea) and clean up a little
506      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
507        help the adjoint (this also changes the results slightly)
508      - add a few "_d 0" where they had been missing in seaice_evp.F
509      - cleaning up: remove unused seaice_calc_rhs.F
510    o pkg/exf: some cleaning-up:
511      - change various "constants" into runtime parameters
512      - cleaned-up Large&Yeager04 routine which should eventually
513        replace exf_bulkformulae.F (changed names of S/R and CPP)
514        and merged various ALLOW_ATM_WIND options
515     only used with thsice pkg (in thsice_get_exf.F):
516      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
517        which are used when useStabilityFct_overIce=TRUE (= the default)
518      - change default values of ice & snow emissivity and scale downward LW
519        by ice & snow emissivity.
520    o pkg/thsice:
521     fix few little problems, in thsice_calc_thickn.F:
522      - growth vertically (and not laterally) if iceFrac == iceMaskMax
523      - melt only laterally if hIce < hThinIce (as the comments say)
524      and in thsice_extend.F:
525      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
526      - start to form ice as soon as the minimum ice-volume is reachable.
527     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
528      and cpl_aim+ocn
529    o pkg/kpp
530     - move computation of surface related input fields to KPP into a new
531       subroutine kpp_forcing_surf.F
532     - remove wrong (within bi,bj loops) EXCH calls.
533     - little cleaning (add argument myThid in last position, cvs header ...)
534     - for now, fix conservation problem by exchanging KPPviscAz (may not
535       be the best fix)
536    o pkg/seaice
537     - check for inconsistent evp parameter/cpp-flag combination
538     - remove leftover errIO flat for obsolete name list error handling
539    o OpenAD
540     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
541    
542    checkpoint59a
543    o pkg/seaice: some parameter clarifications and a little bit of clean up
544    o pkg/thsice: rename run-time parameters:
545       himin       -> hIceMin
546       himin0      -> hThinIce
547       hihig       -> hThickIce
548       i0          -> i0swFrac
549       transCoef   -> bMeltCoef
550       frac_energy -> fracMelting
551      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
552       with default values (for now) that do not change the results.
553      remove old version of thsice vars advection in pkg/seaice.
554    o in FFIELDS.h:
555      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
556      - make pLoad & sIceLoad always available (but still only used if
557         ATMOSPHERIC_LOADING is #define).
558    o pkg/kpp: replaced _KPP_RL with _RL
559    o bug fixes for vertical diffusivity computations when both KPP and
560        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
561        are no longer updating the vertical diffusivity array
562        (passed as argument) but are (re-) setting those arrays.
563    o pkg/seaice: fix bug in evp solver, while doing that
564      - change (improve?) discretization of stress computations for both
565        cgrid-lsr and evp solver
566      - add a new routine to compute strain rates
567      - the above changes lab_sea results
568      - add no slip conditions for evp solver (off by default), lsr-version
569        may follow
570      - fix exchange for shear at Z-points (does not change lab_sea)
571      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
572        (to force the user to pick a time step since there is not "safe" way
573        of choosing it)
574      - add principal stress diagnostics
575      - rearrange fields for evp a little to avoid having to call a: too many
576        exchanges and b: exchanges for stress trensor components which we do
577        not have.
578      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
579        of evp, complete rewrite for lsr case (latter is does not yet work
580        in all cases)
581    o pkg/kpp: add code to have mixing in shelf ice caverns
582      - add myThid to all kpp routines (long overdue)
583    
584    checkpoint59
585    o pkg/exf:
586      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
587        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
588      - move exf header files from lower_case.h to UPPER_CASE.h ;
589        add missing cvs Header & Name
590      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
591      - add namelist param. selectStressGridPosition, exf_monFreq
592      - retire many _CLIM routines, and remove data.exf_clim
593        + params moved to data.exf
594        + climsst, climsss now handled by exf_set_gen, i.e.
595          climss?period=0 refers to constant field,
596          climss?period=-12 to monthly forcing
597      - split up namelists in data.exf
598    o pkg/seaice:
599      - remove seaice_exch and seaice_exch_uv
600      - remove superfluous exchange of theta
601      - add myThid to seaice_budget_ocean/ice
602      - add new interface for atmospheric wind forcing (C-grid only)
603        + new routine
604        + two new field (taux, tauy for stress over ice)
605        + removed one global field (DAIRN) for C-grid case only
606    o pkg/thsise
607      - 2nd set of modifs for thsice adjoint in conjunction with exf
608    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
609    
610    checkpoint58y_post
611    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
612      vertical diffusivity, similar to that in MOM4; turned on using
613      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
614      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
615    o Added capability for 3D specification of background vertical diffusion
616      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
617      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
618      "data" file that contains the 3D vertical diffusivity coefficients.
619    o ice dynamics (pkg/seaice) with thsice thermodynamics:
620      - add code within pkg thsice to advect & diffuse sea-ice fields
621      similar to (and will replace) what has been added in  seaice_advdiff.F,
622      but: - conserving Mass, Heat & Salt.
623           - better when using non-linear advection scheme (not yet fully tested)
624           - can also be used in atmospheric set-up (for now, only the diffusion).
625    
626    checkpoint58x_post
627    o IO option for global-file compact format:
628      - add options when generating topology (utils/exch2/matlab-topology-generator)
629      - add I/O capability (pkg/mdsio).
630      - adapt utils/matlab/rdmds.m to read this format.
631      for now long-line format not yet supported by pkg/mdsio (& exch2).
632    o shelfice: add a few diagnostics
633    
634    checkpoint58w_post
635    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
636      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
637      (and replace horiVertRatio in NH code).
638      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
639                         and tutorial_plume_on_slope (sensitive to truncation)
640    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
641      directly to drive seaice model (C-grid only)
642    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
643     - reintroduce computation of wind from stress,
644     - compute tau (in exf_bulkformulae.F) from windstress averaged to
645       mass points to avoid tau = 0
646     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
647    o rdmnc.m: make it work with "global" files created with gluemnc
648    o rdmnc.m : some improvements in dealing with singleton dimension
649      (tested on all testreport mnc output files).
650    o genmake2: disable pkg/profiles if netcdf test fails.
651    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
652    o move call to cal_readparms up to make calendar parameters/variable available
653      to all packages
654    
655    checkpoint58v_post
656    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
657      useDynP_inEos_Zc tested.
658    o pkg/exf: changes to properly interpolate/mask/scale initial fields
659    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
660      and portions thereof.  See read_cs.txt for description and examples.
661    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
662      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
663      following the great-circle arc between those 2 points.
664    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
665      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
666    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
667     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
668     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
669     - still needs work (not working with some options ; efficiency to improve)
670       and serious testing.
671     - use this scheme for temperature & salinity in 2 advection test exp.:
672       advect_xy & advect_xz, respectively.
673    
674    checkpoint58u_post
675    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
676    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
677    o testreport: add option "-skipdir" to skip some test.
678    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
679      momentum calculation.
680    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
681    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
682      remove checkpoint.F and the_correction_step.F (no longer used);
683      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
684    o add option (linFSConserveTr) to correct for tracer source/sink due to
685      Linear Free surface
686    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
687    o pkg/thsice: fix reading mnc-pickups
688    
689    checkpoint58t_post
690    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
691    o pkg/mdsio:
692     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
693       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
694       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
695     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
696     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
697       either MDS_READ_FIELD or MDS_WRITE_FIELD )
698     - new S/R (to replace MDSWRITEMETA), which allows to write more
699       informations (variable names, time ...) to meta files.
700     - modify rdmds.m to give back the meta file content.
701    o pkg/diagnostics: change vertical interpolation to be safer, and more
702       flexible (define p-levels to interpolate to in data.diagnostics);
703      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
704       diagnostic pointer.
705    o pkg/seaice: more cleaning up of seaice_growth, added many comments
706    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
707    o fix multi-category seaice:
708     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
709       SEAICE_MULTICATEGORY
710     - fix short wave heat flux
711    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
712       and allow to use EVP solver. Change forward lab_sea: test both EVP
713       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
714    o Initial check-in of lab_sea adjoint
715      (very similar to natl_box_adjoint/code_seaice)
716      * used C-grid and EVP solver
717      * used KPP, GM/Redi
718      * uses inAdExact=.TRUE.
719      * gradient checks fail for both ADM and TLM
720        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
721        f.d. gradients actually seem more problematic than ADM, TLM gradients;
722        issue is related to forward mismatch between g77 an ifort
723    o pkg/seaice: overhaul of thermodynamics
724     - growth.F and groatb.F are replaced by new routine seaice_growth.F
725     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
726     - move a few global fields out of SEAICE.h into seaice_growth.F and
727       make them 2D (FICE/QNETO/ ...)
728     - remove FO (it is the same as QNETO)
729     - introduce a few local fields to avoid modifying external fields such
730       as atemp, etc.
731    
732    checkpoint58s_post
733    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
734      changed exf_set_gen.F so that
735        genperiod=0 means input file is one time-constant field and
736        genperiod=-12 means input file contains 12 monthly means
737    o CG2D: use pre-computed solver main-diagonal (stored in common block);
738      this affects truncation error ; generate new output file for exp. which
739      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
740        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
741        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
742        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
743        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
744        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
745    o start implementation of deep-atmosphere and anelastic formulation
746    o verification: remove 2nd copy of input files and use script "prepare_run"
747      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
748    o mom_common/vecinv/fluxform: fix a few initialisation isssues
749    o profiles: fix for multithreaded case
750    
751    o diagnostics: rename few diags:
752      s/'PRESSURE'/'RCENTER '/g
753      s/'TICE    '/'oceFreez'/g
754      s/'TAUX    '/'oceTAUX '/g
755      s/'TAUY    '/'oceTAUY '/g
756      s/'SWFLUX  '/'oceQsw  '/g
757      s/DIFx/DFxE/g
758      s/DIFy/DFyE/g
759      and add few ocean-forcing diagnostics:
760      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
761    o modifications to pkg/seaice/growth.F and budget.F, which change results of
762      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
763      as actual snow thickness.  It now refers everywhere to effective snow
764      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
765    
766    checkpoint58r_post
767    o modifications to pkg/seaice/growth.F, which change results of
768      lab_sea experiment: fixes pertain to melting snow over open water, to
769      masking EVAP under sea ice, and to using the correct AREA variable for
770      computations of EVAP, PRECIP, HSNOW, and GHEFF
771    o add ability to read bathy, salt, and theta using MNC (off by def)
772    o add flooding algorithm and advection of HSNOW for pkg/seaice;
773      both are turned off by default and do no change any results
774    o seaice advection with pkg/thsice: a step toward the use of non-linear
775      advection scheme, but #ifdef or commented out for now (requires more EXCH).
776    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
777      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
778      in natl_box (affects results @ truncation level: update output.txt)
779    o multi-threading and IO:
780      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
781      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
782        (needed to work with SingleCpuIO): tested in all verif. exp.
783    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
784      affects the results (but none of the verification test uses this scheme).
785    o Adding some pkg/diagnostics capability to pkg/seaice
786      (will certainly be subject to changes)
787    o ctrl: adding new control variables:
788      lwflux, lwdown, evap, snowprecip, apressure, runoff
789    
790    checkpoint58q_post
791    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
792      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
793      high_res_cube configuration by 4% on Columbia.
794  o clean-up multi-threaded problems (reported by debugger tcheck on ACES);  o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
795    add (in global_with_exf/code) a version of EXF_INTERP_READ without    add (in global_with_exf/code) a version of EXF_INTERP_READ without
796    dynamical allocation (seems to work in multi-threaded).    dynamical allocation (seems to work in multi-threaded).

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