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revision 1.747 by dimitri, Mon Nov 20 20:06:43 2006 UTC revision 1.977 by mlosch, Tue Apr 22 15:29:06 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 os7mp as an advection scheme
8                  add check for advection schemes
9                  add a flag for restoring T and S underneath sea ice
10    o pkg/my82: add netcdf-support and diagnostics
11    o thsice pkg:
12      - Now hsMax limits snow heitght by turning it into ice following
13        flooding scheme (and now conserving energy)
14      - Slight rewriting of the formula in thsice_calc_thick.F
15      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
16        --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
17    
18    checkpoint59p
19    o gchem / dic / cfc :
20      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
21      - add new parameter files: "data.dic" & "data.cfc" ;
22      - various re-arrangement in initialisation & header file ;
23      - fix tutorial_global_oce_biogeo for multi-threaded test.
24    o pkg/dic: test for "pickup_dic" file when restarting ;
25      if no pickup-file, can restart with a re-initialised pH (same as it did
26      before) providing pickupStrictlyMatch is set to False.
27    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
28      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
29    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
30      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
31    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
32     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
33       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
34    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
35       scheme to use for vorticty-term ;
36     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
37       (with default selectVortScheme, return to original discretisation)
38     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
39    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
40    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
41      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
42      also fix diagnostics VISCAHW & VISCA4W.
43    
44    checkpoint59o
45    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
46    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
47      move a few statemens out the main loop into separate loops
48    o pkg/shelfice:
49      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
50        (kg/m^2/s), does not break tests, because in verification/isomip,
51        rhoConstFresh=rhoConst (by accident)
52      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
53      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
54        new file model/src/seawater.F, so that they are available for all pkgs.
55      - convert potential temperature into in-situ temperature. This changes the
56        isomip tests => update tests
57    o add a flag writePickupAtEnd (default=true) to be able to suppress
58      writing a pickup at the last timestep
59    o tools/mpack-1.6 :
60      - disable automake (not working) and autoconf (not needed).
61      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
62        also cleaner with much less compilation warnings.
63    o pkg/profiles:
64      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
65      (for "less than 32 characters name" compiler requirement)
66    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
67      conditions that have a different sampling frequency than S/T/U/V obcs
68    o pkg/diagnostics (stats-diags):
69      - fix global Min/Max in case 1 processor get only empty tiles
70    o genmake2: replace (4 times)
71         make genmake_tc_1.o >> genmake_warnings 2>&1
72      with
73         COMM="$CC $CFLAGS -c genmake_tc_1.c"
74         echo $COMM >> genmake_warnings
75         $COMM >> genmake_warnings 2>&1
76      to make genmake2 always see the value of CC as specified in the optfile.
77    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
78      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
79      - modify verification advect_cs test to test SOM-advection on CS-grid.
80    o pkg/ctrl:
81      - Rewrite of ctrl_map_ini_ecco.F,
82        introducing a generic routine (ctrl_map_ini_gen.F).
83      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
84    
85    checkpoint59n
86    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
87      number in dedicate array "hdiag":
88      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
89        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
90      - many small changes (integer format) for large number of diagnostics
91      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
92        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
93    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
94      usingSphericalGrid, this allows to define the rotated grid coordinates
95      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
96      geographical coordinates according to the inverse of the rotation defined
97      by the Euler angles, so that Coriolis parameter and online-interpolation by
98      exf works with the geographical coordinates on XC/YC/XG/YG.
99      Naturally, this feature does not work with all packages, so some
100      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
101      profiles), because there the coordinates are assumed to be regular
102      spherical grid coordinates.
103    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
104      - introduce isopycnal diffusion coefficient control.
105    o tools/adjoint_options:
106      - additional control vector components.
107    o pkg/mnc: have mnc create marginally meaning full coordinate variables
108      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
109    o pkg/mypackage:
110      - add example of read/write pickup for state-var ;
111      - add entry points to the main code for state-vars diags & write-pickup.
112    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
113      transitions for useExfYearlyFields
114      - add new subroutine that determines the file to read from for
115        use*YearlyFields = .TRUE. and .FALSE.
116      - add a verification experiment to global_with_exf that tests
117        useExfYearlyFields with USE_EXF_INTERPOLATION defined
118    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
119      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
120      subroutines (which could be generated from a template, because they are
121      almost identical), for now they are included in obcs_prescribe_read.F for
122      simplicity
123    o pkg/exf:
124      - add a little more diagnostic to exf_interp_read (in analogy to
125        mds_read_field, can be turned off with debugLevel < debugLevA=1)
126      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
127        ugly but fast by unrolling short inner loops, inserting a unroll=8
128        directive in routine lagran, and splitting a loop and making do while the
129        outermost loop (the latter requires the intoduction of index arrays)
130    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
131    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
132      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
133    o verification/seaice_obcs: updated for restart test and latest options
134    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
135      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
136      for now this is only available for the C-grid code and also within
137      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
138    
139    checkpoint59m
140    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
141      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
142    o gad_som : fix flux output (& diagnostics) to have same units as other  
143      advection scheme fluxes (was previously multiplied by deltaT).  
144    o added verification/seaice_obcs both to test seaice open boundaries
145      and to provide an example matlab scrpt for generating them
146    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
147    o pkg/salt_plume: clean up salt_plume_frac.F to
148      remove redundancy in PlumeMethod 1 and 4
149    o pkg/kpp: added saltplume diagnostics
150    o pkg/obcs and pkg/seaice:
151      - do not set uice and vice to zero when OB*icefile are unspecified
152      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
153      - moved seaice tracer obcs after call to seaice_growth
154    o pkg/salt_plume: added various options for salt plume depth
155      criterion and for vertical distribution of the salt
156    
157    checkpoint59l
158    o pkg/ptracers: new version of ptracers pickup:
159      read meta file and write only fields which are needed to restart.
160      ( same logic as main pickup file ; also using pickupStrictlyMatch )
161    o pkg/seaice:
162      - add timescale for melting due to warm mixed layer as a means of
163        setting SEAICE_availHeatFrac more conveniently
164      - add a CPP-flag/runtime parameter check for flooding algorithm
165      - reformulated availHeat in seaice_growth.F to be independent of AREA
166    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
167      unit changes
168    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
169    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
170      SX vector computer.
171    o pkg/seaice:
172      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
173        seaice forcing fields can now be read only through pkg/exf
174      - removed some unused halos
175    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
176    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
177      or U/VICE from U/VWIND before computing U/VSTRESS
178    
179    checkpoint59k
180    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
181      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
182    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
183      all experiments pass when compile with un-initialised var. checking option.
184    o added pkg/salt_plume
185    o script to test restart (for now, in MITgcm_contrib/jmc_script)
186    o pkg/seaice: new read/write pickup version.
187      read meta file and write only fields which are needed to restart.
188      ( same logic as main pickup file ; also using pickupStrictlyMatch )
189    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
190    o lab_sea.hb87: modify the domain & update output.hb87.txt :
191      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
192      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
193      process. Fixed here by closing the domain at the Northern boundary.
194    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
195    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
196      a set of consecutive levels in/from a 3-D array.
197    o pkg/ptracers:
198      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
199      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
200    
201    checkpoint59j
202    o in pkgs: dic, obcs, offline, rbcs:
203      standard way to compute coeff. for time interpolation between 2 time reccords
204      which retains full precision (& make results less dependent on compiler).
205      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
206    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
207      packages instead of reading ice cover and wind speed separately
208    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
209     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
210      to allow to compile customized code before the update)
211    o cleaning-up:
212      - fix CPP instruction syntax in pkg/obcs
213      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
214        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
215      - fix some threads issue in IO parts.
216    o pkg/dic:
217      - add tons of "_d 0" (--> much better testreports !)
218       and then update outputs of tutorial_global_oce_biogeo
219    o pkg/mom_fluxform:
220      add a special version of momentum advection intended to conserve momentum
221      next to a bathymetry step or a coastline edge. (default = off = #undef)
222    o new read/write pickup version:
223      - for now, only implemented for main (mdsio) pickup file.
224      - write out only what is needed to restart; merge pickup_nh , pickup_ph
225        and main pickup together.
226      - read meta file; read only what is needed to restart; stop if a field
227        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
228        if it make sense (even if the restart is not perfect).
229      - if no meta file, assume that pickup to read corresponds exactly to
230        a pickup that would currently be written.
231      - read pickup written in the old format (until checkpoint59i) if it
232        recognizes an old meta file (no field-list).
233      - add a meta file in exp. which starts from a pickup: 2 cases:
234        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
235         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
236        b) a meta file describing the content of the associated pickup file
237         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
238    o pkg/mdsio & pkg/rw:
239      - new routine to read a meta file ; new set of routine to read
240        Multiple-fields file (with meta file).
241    o added open boundary conditions capability for seaice
242        HSNOW, HSALT, UICE, and VICE
243    
244    checkpoint59i
245    o adjoint:
246      * fix multiDimAdvection adjoint
247        (partial recomputation problem by TAF for fVerT(:,:,kDown)
248        and comlev1 size definition (maxpass vs. max. number of tracers)
249      * verification/global_ocean.90x45x15 adjoint now tests
250        NLFS and multiDimAdvection using DST3 (=30)
251      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
252    o pkg/kpp: add "_d 0" to real constant (if missing);
253      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
254      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
255    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
256      for internal parameters related to restart process (formerly from PARAMS.h)
257      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
258    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
259      as argument. (only atm2d & obcs write_pickup have not yet been updated)
260    o pkg/monitor:
261      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
262      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
263      - account for deep Atmosphere factor and density factor (anelastic)
264    o added open boundary conditions capability for seaice HEFF and AREA
265    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
266      thermodynamics
267      - requires a little reorganization, which affects the testreport results
268        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
269        so that now the conservative form is tested
270      - add a few comments
271    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
272    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
273    o add new diagnostics to seaice: advective, diffusive fluxes (only for
274      multidim-advection, for scheme 2 they are not filled) and transports,
275      thermodynamic growth rates
276    o change units of EmPmR (inside the code, + within coupling interface)
277      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
278      Affects results @ truncation level (cg2d match) and update output of
279       experiments: lab_sea(6), global_ocean.90x40x15(10),
280      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
281      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
282      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
283      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
284    
285    checkpoint59h
286    o pkg/exf:
287      - improve vectorization by moving if-statement out of loops in
288        exf_mapfields, exf_radiation
289      - exf_bulkformulae.F: introduce 2D fields and vectorize code
290    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
291    o testreport:
292      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
293        monitor & update offline_exf_seaice exp. output.
294      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
295    o pkg/seaice:
296      - bug fix in the evp solver: boundary conditions were affected be
297        masking of zMax/zMin (changes results)
298      - minor bug fix in boundary conditions in seaice_calc_strainrates
299        (changes results for no_slip)
300      - seaice_lsr.F: make interpolation of eta dependent on boundaries
301      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
302      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
303        stress formulation and no-slip boundary conditions
304    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
305      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
306    o pkg/seaice: a first HSALT time stepping equation has been checked in
307    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
308      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
309      without requiring DO-IF statements
310    o pkg/thsice:
311      use continuous power-law function for partition of energy between lateral
312      melting/freezing and thinning/thickening ; old code using step function
313      still available with #undef THSICE_FRACEN_POWERLAW
314      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
315    o testreport: change AD testing : check against results/output_adm.txt
316      using same scripts as for forward test.
317    
318    checkpoint59g
319    o adjoint testing: in preparation for changing testreport:
320      - output format: cost and grad written on separated lines
321      - ad output results in directory "results" (instead of "results_ad")
322    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
323    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
324    o pkg/ecco: allow user defined cost function contributions
325    o testreport:
326      Allow to choose (per experiment) the list of tested output variables
327       and the main variable (used to issue a pass/FAIL ) ;
328      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
329      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
330      Also modify printing of summary:
331       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
332       b) echo the list of tested variables in the individual summary.txt of
333          each experiment.
334    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
335      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
336      (but still depend on the tile decompostion of the domain).
337    o pkg/seaice: change a discretization detail to make the B-grid code
338      "more symmetric". This change is likely to remove all "ridges/leads" that
339      where quasi-aligned with the grid in B-grid solutions. It may also be
340      the solution to the stress coupling issues with the B-grid.
341    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
342      remove .cvsignore from input dir. (since testreport no longer run here).
343    o pkg/thsice:
344     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
345     - fix reshaping of sea-ice just after advection:
346       melt all the ice only if ice-volume is too small.
347     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
348       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
349     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
350    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
351      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
352    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
353      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
354      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
355      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
356      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
357      -> update output.txt
358    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
359     this affects truncation error: -> update output.txt of exp:
360      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
361      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
362    
363    checkpoint59f
364    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
365    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
366      a bounded range (in forward mode)
367    o pkg/ecco, ctrl, autodiff and mom_common:
368     internal parameter controls, completements of implementations
369    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
370    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
371      (not seem any difference in testing results).
372    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
373       at face corners.
374    o pkg/generic_advdiff:
375     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
376      loop range indices for computing vertical advection tendency
377      and do the calculation in the interior only (no overlap) ;
378      for now, only implemented for SOM advection (to save CPU time).
379     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
380    o exch2 adjoint
381      First set of changes:
382      - add exch2 hand-written adjoint templates
383      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
384        This will require cleanup in pkg/autodiff/*.F
385        (changed routines currently kept separate in verif. code/)
386      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
387        that used to hide exch2 or cubed-sphere specific code
388        (commented via 'cph-exch2')
389    o pkg/seaice
390      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
391    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
392       output of global_ocean.cs32x15.thsice .
393    
394    checkpoint59e
395    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
396      for B-grid vector (not yet tested) and C-grid vector (<- only used
397      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
398    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
399      (#ifdef ALLOW_SALT_PLUME)
400    o gather_2d/scatter_2d: removed halo regions
401    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
402      scheme and the corresponding test case (under front_relax dir). For now,
403      only available with Skew-flux form and not yet tested in realistic set-up.
404      adjoint: store directives updated, but gradient checks deteriorated,
405      so maybe GM/Redi adjoint is now broken.
406    o seaice adjoint
407      * add AREA, HEFF, HSNOW as control variable
408        (should not change lab_sea results)
409      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
410    o pkg/seaice:
411      * added computation of saltFlux in seaice_growth;
412        For time being, sea ice salinity is assumed constant
413        contribution of snow flooding to freshening of sea ice is neglected.
414        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
415        defaults to 0.0 in order to maintain backward compatibility.
416        Typical values for SEAICE_salinity are 4 to 10 g/kg.
417      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
418      * added SEAICE_availHeatFrac, which specifies fraction of surface level
419        heat content used to melt or grow ice
420      * commented out cap of HICE: it helps keep ice thinner
421      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
422      * applied OBCS T/S mask to HEFFM sea ice mask
423    
424    checkpoint59d
425    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
426     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
427     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
428    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
429     and change default value of parameter "GM_Small_Number";
430     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
431       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
432       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
433    o pkg/ecco: cost function when applying pkg/smooth to controls
434    o pkg/ctrl: add forcingPrecond run time parameter
435    o pkg/seaice:
436     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
437     - fix bug in metric terms of u-equation in LSR solver (implicit part),
438       changes verification/lab_sea
439     - rearrange implicit part of u-equation in LSR solver to make it easier to
440       read, understand, and debug. This causes changes at the truncation level.
441     - fix (serious) bug in the boundary conditions (sign error in the implicit
442       part) of the LSR solver. Changes all LSR results.
443     - fixed problem with HSNOW initialization to avoid thick snow when AREA
444       is initilized with small values - does not change lab_sea results.
445     - added HsnowFile initialization capability
446    o pkg/smooth: addition to model/src and pkg/ctrl so allow
447     initialization of pkg/smooth and application to control vector
448    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
449    o dependencies: pkg/profiles requires pkg/cal
450    o pkg/profiles:
451     - added option ALLOW_PROFILES_GENERICGRID
452         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
453         that interpolation information (grid points and coefficients) is provided
454         within the netcdf input files.
455         -> sample matlab scripts can be found in MITgcm_contrib/gael
456         that allow you to prepare netcdf input files.
457     - also modified: cleaner include statements, cleaner error print statements,
458       cleaner stops when error, and more tests of the netcdf input files consistency.
459    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
460    o pkg/seaice:
461     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
462       requires a new routine: seaice_diagnostics_fill.F
463     - make sure that seaice does not move if not forced (pressure replacement
464       method, Hibler and Ip, 1995), changes results
465     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
466     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
467       It is turned off by default (=-1.), because it changes the results.
468     - make it possible to read AREA from a file, too.
469    
470    checkpoint59c
471    o add S/R and diagnostics for oceanic mixed-layer depth
472    o move GMRedi call after all vertical mixing schemes (including KPP)
473    o pkg/thsice:
474     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
475      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
476    o pkg/obcs:
477     - bug fix for balance code
478    o pkg/seaice:
479      - allow values of SEAICE_elasticParm > 1
480      - add new parameter SEAICE_evpTauRelax as an alternative
481        to SEAICE_elasticParm
482      - make lsr boundary conditions free slip (by default), changes result
483      - add code for no slip boundary conditions for lsr
484      - set minimum of zeta to zero (and not 4e8) (changes results)
485      - add a cap on AREA after advecting AREA if seaice_growth is not called
486    o change calculation of Visbeck K:
487      - no longer depend on tapering scheme; instead, compute slope (limited
488        by GM_maxSlope). this is equivalent to what was comuted before with
489        clipping or linear tappering.
490      - fix vertical averaging (wrong by 1/2 level)
491      - leave the old version (but will not be maintained) within
492        #ifdef OLD_VISBECK_CALC / #endif
493      - update output of exp. ideal_2D_oce
494    o change error catch in calc_r_star to improve vectorization
495    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
496      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
497    o adjoint:
498      Re-organized adjoint checkpointing according to Matt Mazloff
499      (but with modifs/completions/cleanups)
500      Storing is now bundled into large arrays to optimized I/O
501      (and second step in cleanup of the_main_loop)
502    
503    checkpoint59b
504    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
505      - export/import (between ocean & coupler) fields needed for ocean DIC.
506    o pkg/seaice:
507      - get rid of three more exchanges seaice_calc_viscosities (required
508        different loop boundaries in seaice_lsr and seaice_ocean_stress)
509      - bug fix in seaice_ocean_stress (update of lab_sea required)
510      - reduce loop boundaries to necessary minimum also in seaice_evp
511      - go back to the old way of computing deltaC/Z as the adjoint likes that
512        better
513    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
514      passive tracer to an Age Tracer) + update output.txt
515    o pkg/exf:
516      - implement A-grid / C-grid selection for wind-stress input files.
517      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
518      for now, in exf_bulk_largeyeager04.F only :
519      - change implementation for case where windspeed + 2. components wind-stress
520        are read-in. AND use rhoConstFresh to convert evap.
521    o pkg/seaice:
522      - use correct EXCH_UV for wind-forcing (on A-grid).
523      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
524        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
525    o pkg/exf:
526      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
527      EXF_INTERPOLATION:
528      - merge global_with_exf/code version of exf_interp_read.F
529        to the main code ;
530      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
531        reading the file ; Important: This options needs to be defined to recover
532        previous code.
533        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
534      - no longer loose real*8 precision along the way when using exf_iprec=64.
535    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
536      - change discretisation of evp-solver in order to avoid another exchange
537        (changes lab_sea) and clean up a little
538      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
539        help the adjoint (this also changes the results slightly)
540      - add a few "_d 0" where they had been missing in seaice_evp.F
541      - cleaning up: remove unused seaice_calc_rhs.F
542    o pkg/exf: some cleaning-up:
543      - change various "constants" into runtime parameters
544      - cleaned-up Large&Yeager04 routine which should eventually
545        replace exf_bulkformulae.F (changed names of S/R and CPP)
546        and merged various ALLOW_ATM_WIND options
547     only used with thsice pkg (in thsice_get_exf.F):
548      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
549        which are used when useStabilityFct_overIce=TRUE (= the default)
550      - change default values of ice & snow emissivity and scale downward LW
551        by ice & snow emissivity.
552    o pkg/thsice:
553     fix few little problems, in thsice_calc_thickn.F:
554      - growth vertically (and not laterally) if iceFrac == iceMaskMax
555      - melt only laterally if hIce < hThinIce (as the comments say)
556      and in thsice_extend.F:
557      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
558      - start to form ice as soon as the minimum ice-volume is reachable.
559     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
560      and cpl_aim+ocn
561    o pkg/kpp
562     - move computation of surface related input fields to KPP into a new
563       subroutine kpp_forcing_surf.F
564     - remove wrong (within bi,bj loops) EXCH calls.
565     - little cleaning (add argument myThid in last position, cvs header ...)
566     - for now, fix conservation problem by exchanging KPPviscAz (may not
567       be the best fix)
568    o pkg/seaice
569     - check for inconsistent evp parameter/cpp-flag combination
570     - remove leftover errIO flat for obsolete name list error handling
571    o OpenAD
572     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
573    
574    checkpoint59a
575    o pkg/seaice: some parameter clarifications and a little bit of clean up
576    o pkg/thsice: rename run-time parameters:
577       himin       -> hIceMin
578       himin0      -> hThinIce
579       hihig       -> hThickIce
580       i0          -> i0swFrac
581       transCoef   -> bMeltCoef
582       frac_energy -> fracMelting
583      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
584       with default values (for now) that do not change the results.
585      remove old version of thsice vars advection in pkg/seaice.
586    o in FFIELDS.h:
587      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
588      - make pLoad & sIceLoad always available (but still only used if
589         ATMOSPHERIC_LOADING is #define).
590    o pkg/kpp: replaced _KPP_RL with _RL
591    o bug fixes for vertical diffusivity computations when both KPP and
592        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
593        are no longer updating the vertical diffusivity array
594        (passed as argument) but are (re-) setting those arrays.
595    o pkg/seaice: fix bug in evp solver, while doing that
596      - change (improve?) discretization of stress computations for both
597        cgrid-lsr and evp solver
598      - add a new routine to compute strain rates
599      - the above changes lab_sea results
600      - add no slip conditions for evp solver (off by default), lsr-version
601        may follow
602      - fix exchange for shear at Z-points (does not change lab_sea)
603      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
604        (to force the user to pick a time step since there is not "safe" way
605        of choosing it)
606      - add principal stress diagnostics
607      - rearrange fields for evp a little to avoid having to call a: too many
608        exchanges and b: exchanges for stress trensor components which we do
609        not have.
610      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
611        of evp, complete rewrite for lsr case (latter is does not yet work
612        in all cases)
613    o pkg/kpp: add code to have mixing in shelf ice caverns
614      - add myThid to all kpp routines (long overdue)
615    
616    checkpoint59
617    o pkg/exf:
618      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
619        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
620      - move exf header files from lower_case.h to UPPER_CASE.h ;
621        add missing cvs Header & Name
622      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
623      - add namelist param. selectStressGridPosition, exf_monFreq
624      - retire many _CLIM routines, and remove data.exf_clim
625        + params moved to data.exf
626        + climsst, climsss now handled by exf_set_gen, i.e.
627          climss?period=0 refers to constant field,
628          climss?period=-12 to monthly forcing
629      - split up namelists in data.exf
630    o pkg/seaice:
631      - remove seaice_exch and seaice_exch_uv
632      - remove superfluous exchange of theta
633      - add myThid to seaice_budget_ocean/ice
634      - add new interface for atmospheric wind forcing (C-grid only)
635        + new routine
636        + two new field (taux, tauy for stress over ice)
637        + removed one global field (DAIRN) for C-grid case only
638    o pkg/thsise
639      - 2nd set of modifs for thsice adjoint in conjunction with exf
640    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
641    
642    checkpoint58y_post
643    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
644      vertical diffusivity, similar to that in MOM4; turned on using
645      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
646      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
647    o Added capability for 3D specification of background vertical diffusion
648      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
649      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
650      "data" file that contains the 3D vertical diffusivity coefficients.
651    o ice dynamics (pkg/seaice) with thsice thermodynamics:
652      - add code within pkg thsice to advect & diffuse sea-ice fields
653      similar to (and will replace) what has been added in  seaice_advdiff.F,
654      but: - conserving Mass, Heat & Salt.
655           - better when using non-linear advection scheme (not yet fully tested)
656           - can also be used in atmospheric set-up (for now, only the diffusion).
657    
658    checkpoint58x_post
659    o IO option for global-file compact format:
660      - add options when generating topology (utils/exch2/matlab-topology-generator)
661      - add I/O capability (pkg/mdsio).
662      - adapt utils/matlab/rdmds.m to read this format.
663      for now long-line format not yet supported by pkg/mdsio (& exch2).
664    o shelfice: add a few diagnostics
665    
666    checkpoint58w_post
667    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
668      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
669      (and replace horiVertRatio in NH code).
670      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
671                         and tutorial_plume_on_slope (sensitive to truncation)
672    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
673      directly to drive seaice model (C-grid only)
674    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
675     - reintroduce computation of wind from stress,
676     - compute tau (in exf_bulkformulae.F) from windstress averaged to
677       mass points to avoid tau = 0
678     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
679    o rdmnc.m: make it work with "global" files created with gluemnc
680    o rdmnc.m : some improvements in dealing with singleton dimension
681      (tested on all testreport mnc output files).
682    o genmake2: disable pkg/profiles if netcdf test fails.
683    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
684    o move call to cal_readparms up to make calendar parameters/variable available
685      to all packages
686    
687    checkpoint58v_post
688    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
689      useDynP_inEos_Zc tested.
690    o pkg/exf: changes to properly interpolate/mask/scale initial fields
691    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
692      and portions thereof.  See read_cs.txt for description and examples.
693    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
694      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
695      following the great-circle arc between those 2 points.
696    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
697      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
698    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
699     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
700     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
701     - still needs work (not working with some options ; efficiency to improve)
702       and serious testing.
703     - use this scheme for temperature & salinity in 2 advection test exp.:
704       advect_xy & advect_xz, respectively.
705    
706    checkpoint58u_post
707    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
708    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
709    o testreport: add option "-skipdir" to skip some test.
710    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
711      momentum calculation.
712    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
713    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
714      remove checkpoint.F and the_correction_step.F (no longer used);
715      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
716    o add option (linFSConserveTr) to correct for tracer source/sink due to
717      Linear Free surface
718    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
719    o pkg/thsice: fix reading mnc-pickups
720    
721    checkpoint58t_post
722    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
723    o pkg/mdsio:
724     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
725       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
726       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
727     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
728     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
729       either MDS_READ_FIELD or MDS_WRITE_FIELD )
730     - new S/R (to replace MDSWRITEMETA), which allows to write more
731       informations (variable names, time ...) to meta files.
732     - modify rdmds.m to give back the meta file content.
733    o pkg/diagnostics: change vertical interpolation to be safer, and more
734       flexible (define p-levels to interpolate to in data.diagnostics);
735      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
736       diagnostic pointer.
737    o pkg/seaice: more cleaning up of seaice_growth, added many comments
738    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
739    o fix multi-category seaice:
740     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
741       SEAICE_MULTICATEGORY
742     - fix short wave heat flux
743    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
744       and allow to use EVP solver. Change forward lab_sea: test both EVP
745       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
746    o Initial check-in of lab_sea adjoint
747      (very similar to natl_box_adjoint/code_seaice)
748      * used C-grid and EVP solver
749      * used KPP, GM/Redi
750      * uses inAdExact=.TRUE.
751      * gradient checks fail for both ADM and TLM
752        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
753        f.d. gradients actually seem more problematic than ADM, TLM gradients;
754        issue is related to forward mismatch between g77 an ifort
755    o pkg/seaice: overhaul of thermodynamics
756     - growth.F and groatb.F are replaced by new routine seaice_growth.F
757     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
758     - move a few global fields out of SEAICE.h into seaice_growth.F and
759       make them 2D (FICE/QNETO/ ...)
760     - remove FO (it is the same as QNETO)
761     - introduce a few local fields to avoid modifying external fields such
762       as atemp, etc.
763    
764    checkpoint58s_post
765    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
766      changed exf_set_gen.F so that
767        genperiod=0 means input file is one time-constant field and
768        genperiod=-12 means input file contains 12 monthly means
769    o CG2D: use pre-computed solver main-diagonal (stored in common block);
770      this affects truncation error ; generate new output file for exp. which
771      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
772        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
773        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
774        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
775        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
776        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
777    o start implementation of deep-atmosphere and anelastic formulation
778    o verification: remove 2nd copy of input files and use script "prepare_run"
779      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
780    o mom_common/vecinv/fluxform: fix a few initialisation isssues
781    o profiles: fix for multithreaded case
782    
783  o diagnostics: rename few diags:  o diagnostics: rename few diags:
784    s/'PRESSURE'/'RCENTER '/g    s/'PRESSURE'/'RCENTER '/g
785    s/'TICE    '/'oceFreez'/g    s/'TICE    '/'oceFreez'/g

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