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revision 1.777 by jmc, Tue Mar 13 22:02:39 2007 UTC revision 1.1001 by gforget, Wed Jun 11 18:56:14 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/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
8    o pkg/autodiff: more flexibility in zeroadj.
9      model/src: modifying do_oceanic_phys.F accordingly.
10    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
11    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
12      special setup of gmredi for which the adjoint is stable
13      enough for parameter optimization.
14    o bridging the gap between eddy stress and GM.
15      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
16          along with a change in CPP option (now ALLOW_EDDYPSI).
17      -> when using GM w/ GM_AdvForm:
18          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
19          is applied either in the tracer Eq. or in momentum Eq.
20          depending on data.gmredi (intro. GM_InMomAsStress).
21      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
22      The key modifications are in model/src/taueddy_external_forcing.F
23      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
24    checkpoint59r
25    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
26      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
27      fix option to read coriolis(@ cell-corner) from files with CS-grid.
28    o pkg/mnc: add some attributes to standard 1D-coordinate variables
29    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
30      mass points, when using mnc for output
31      - add runtime parameter (missing_value, missing_value_int) to override
32        default (which is the value of getcon('UNDEF'))
33    o pkg/mnc: prepare mnc for the actual use of missing values with the
34      diagnostics package: small fix in mnc_cw_readwrite.template and more
35      initialisation of never used fields
36      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
37      versions
38    o pkg/thsice/thsice_ini_vars.F added default initial values so that
39      thermodynamics sea ice solver does not blow up when some initial fields
40      are missing.
41    o move from external_forcing_surf.F to ini_forcing.F
42      the p-coord. hack consisting in using pLoad to set phi0surf ;
43      update output of tutorial_global_oce_in_p (affected @ truncation level).
44    o Freshen up a bit hs94.1x64x5, notably:
45      remove rotationPeriod and tRef=5*0. (adjoint only), and add
46      exactConserv=.TRUE.
47    o pkg/generic_advdiff:
48      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
49      applies to files where Temperature & Salinity 2nd Order moments are used.
50    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
51      this uses a dynamically allocated internal state data structure
52      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
53      and requires a fortran 90 compiler
54    
55    checkpoint59q
56    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
57       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
58    o Refresh tutorial_global_oce_biogeo, notably:
59      - change bathymetry (put back seamounts in ACC, use hFacs)
60      - change EOS (POLY3 --> JMD95Z)
61      - use Bryan-Lewis vertical diffusivity
62      - use multidimensional advection
63      - remove old virtual virtual in dic pkg, now done through ptracer pkg
64      - change a couple of parameters in dic pkg
65    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
66    o pkg/obcs: change default to OBCSfixTopo = .true.,
67      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
68      - replace "debugMode" with "debugLevel .GE. debLevB"
69    o implementation of TAF directives for gchem,cfc,dic
70    o remove "exp5" (replaced by tutorial_deep_convection).
71    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
72      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
73      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
74      --> changes results in exp4, seaice_obcs
75    o tutorial_deep_convection :
76      update the set-up and increase resolution and domain size ; start
77      from pseudo initial conditions = output at t=120mn in order to see
78      something happening when running testreport.
79    o pkg/seaice: add os7mp as an advection scheme
80                  add check for advection schemes
81                  add a flag for restoring T and S underneath sea ice
82    o pkg/my82: add netcdf-support and diagnostics
83    o thsice pkg:
84      - Now hsMax limits snow height by turning it into ice following
85        flooding scheme (and now conserving energy)
86      - Slight rewriting of the formula in thsice_calc_thick.F
87      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
88      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
89    
90    checkpoint59p
91    o gchem / dic / cfc :
92      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
93      - add new parameter files: "data.dic" & "data.cfc" ;
94      - various re-arrangement in initialisation & header file ;
95      - fix tutorial_global_oce_biogeo for multi-threaded test.
96    o pkg/dic: test for "pickup_dic" file when restarting ;
97      if no pickup-file, can restart with a re-initialised pH (same as it did
98      before) providing pickupStrictlyMatch is set to False.
99    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
100      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
101    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
102      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
103    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
104     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
105       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
106    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
107       scheme to use for vorticty-term ;
108     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
109       (with default selectVortScheme, return to original discretisation)
110     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
111    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
112    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
113      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
114      also fix diagnostics VISCAHW & VISCA4W.
115    
116    checkpoint59o
117    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
118    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
119      move a few statemens out the main loop into separate loops
120    o pkg/shelfice:
121      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
122        (kg/m^2/s), does not break tests, because in verification/isomip,
123        rhoConstFresh=rhoConst (by accident)
124      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
125      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
126        new file model/src/seawater.F, so that they are available for all pkgs.
127      - convert potential temperature into in-situ temperature. This changes the
128        isomip tests => update tests
129    o add a flag writePickupAtEnd (default=true) to be able to suppress
130      writing a pickup at the last timestep
131    o tools/mpack-1.6 :
132      - disable automake (not working) and autoconf (not needed).
133      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
134        also cleaner with much less compilation warnings.
135    o pkg/profiles:
136      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
137      (for "less than 32 characters name" compiler requirement)
138    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
139      conditions that have a different sampling frequency than S/T/U/V obcs
140    o pkg/diagnostics (stats-diags):
141      - fix global Min/Max in case 1 processor get only empty tiles
142    o genmake2: replace (4 times)
143         make genmake_tc_1.o >> genmake_warnings 2>&1
144      with
145         COMM="$CC $CFLAGS -c genmake_tc_1.c"
146         echo $COMM >> genmake_warnings
147         $COMM >> genmake_warnings 2>&1
148      to make genmake2 always see the value of CC as specified in the optfile.
149    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
150      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
151      - modify verification advect_cs test to test SOM-advection on CS-grid.
152    o pkg/ctrl:
153      - Rewrite of ctrl_map_ini_ecco.F,
154        introducing a generic routine (ctrl_map_ini_gen.F).
155      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
156    
157    checkpoint59n
158    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
159      number in dedicate array "hdiag":
160      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
161        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
162      - many small changes (integer format) for large number of diagnostics
163      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
164        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
165    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
166      usingSphericalGrid, this allows to define the rotated grid coordinates
167      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
168      geographical coordinates according to the inverse of the rotation defined
169      by the Euler angles, so that Coriolis parameter and online-interpolation by
170      exf works with the geographical coordinates on XC/YC/XG/YG.
171      Naturally, this feature does not work with all packages, so some
172      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
173      profiles), because there the coordinates are assumed to be regular
174      spherical grid coordinates.
175    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
176      - introduce isopycnal diffusion coefficient control.
177    o tools/adjoint_options:
178      - additional control vector components.
179    o pkg/mnc: have mnc create marginally meaning full coordinate variables
180      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
181    o pkg/mypackage:
182      - add example of read/write pickup for state-var ;
183      - add entry points to the main code for state-vars diags & write-pickup.
184    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
185      transitions for useExfYearlyFields
186      - add new subroutine that determines the file to read from for
187        use*YearlyFields = .TRUE. and .FALSE.
188      - add a verification experiment to global_with_exf that tests
189        useExfYearlyFields with USE_EXF_INTERPOLATION defined
190    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
191      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
192      subroutines (which could be generated from a template, because they are
193      almost identical), for now they are included in obcs_prescribe_read.F for
194      simplicity
195    o pkg/exf:
196      - add a little more diagnostic to exf_interp_read (in analogy to
197        mds_read_field, can be turned off with debugLevel < debugLevA=1)
198      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
199        ugly but fast by unrolling short inner loops, inserting a unroll=8
200        directive in routine lagran, and splitting a loop and making do while the
201        outermost loop (the latter requires the intoduction of index arrays)
202    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
203    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
204      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
205    o verification/seaice_obcs: updated for restart test and latest options
206    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
207      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
208      for now this is only available for the C-grid code and also within
209      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
210    
211    checkpoint59m
212    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
213      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
214    o gad_som : fix flux output (& diagnostics) to have same units as other  
215      advection scheme fluxes (was previously multiplied by deltaT).  
216    o added verification/seaice_obcs both to test seaice open boundaries
217      and to provide an example matlab scrpt for generating them
218    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
219    o pkg/salt_plume: clean up salt_plume_frac.F to
220      remove redundancy in PlumeMethod 1 and 4
221    o pkg/kpp: added saltplume diagnostics
222    o pkg/obcs and pkg/seaice:
223      - do not set uice and vice to zero when OB*icefile are unspecified
224      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
225      - moved seaice tracer obcs after call to seaice_growth
226    o pkg/salt_plume: added various options for salt plume depth
227      criterion and for vertical distribution of the salt
228    
229    checkpoint59l
230    o pkg/ptracers: new version of ptracers pickup:
231      read meta file and write only fields which are needed to restart.
232      ( same logic as main pickup file ; also using pickupStrictlyMatch )
233    o pkg/seaice:
234      - add timescale for melting due to warm mixed layer as a means of
235        setting SEAICE_availHeatFrac more conveniently
236      - add a CPP-flag/runtime parameter check for flooding algorithm
237      - reformulated availHeat in seaice_growth.F to be independent of AREA
238    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
239      unit changes
240    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
241    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
242      SX vector computer.
243    o pkg/seaice:
244      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
245        seaice forcing fields can now be read only through pkg/exf
246      - removed some unused halos
247    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
248    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
249      or U/VICE from U/VWIND before computing U/VSTRESS
250    
251    checkpoint59k
252    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
253      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
254    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
255      all experiments pass when compile with un-initialised var. checking option.
256    o added pkg/salt_plume
257    o script to test restart (for now, in MITgcm_contrib/jmc_script)
258    o pkg/seaice: new read/write pickup version.
259      read meta file and write only fields which are needed to restart.
260      ( same logic as main pickup file ; also using pickupStrictlyMatch )
261    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
262    o lab_sea.hb87: modify the domain & update output.hb87.txt :
263      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
264      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
265      process. Fixed here by closing the domain at the Northern boundary.
266    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
267    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
268      a set of consecutive levels in/from a 3-D array.
269    o pkg/ptracers:
270      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
271      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
272    
273    checkpoint59j
274    o in pkgs: dic, obcs, offline, rbcs:
275      standard way to compute coeff. for time interpolation between 2 time reccords
276      which retains full precision (& make results less dependent on compiler).
277      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
278    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
279      packages instead of reading ice cover and wind speed separately
280    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
281     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
282      to allow to compile customized code before the update)
283    o cleaning-up:
284      - fix CPP instruction syntax in pkg/obcs
285      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
286        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
287      - fix some threads issue in IO parts.
288    o pkg/dic:
289      - add tons of "_d 0" (--> much better testreports !)
290       and then update outputs of tutorial_global_oce_biogeo
291    o pkg/mom_fluxform:
292      add a special version of momentum advection intended to conserve momentum
293      next to a bathymetry step or a coastline edge. (default = off = #undef)
294    o new read/write pickup version:
295      - for now, only implemented for main (mdsio) pickup file.
296      - write out only what is needed to restart; merge pickup_nh , pickup_ph
297        and main pickup together.
298      - read meta file; read only what is needed to restart; stop if a field
299        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
300        if it make sense (even if the restart is not perfect).
301      - if no meta file, assume that pickup to read corresponds exactly to
302        a pickup that would currently be written.
303      - read pickup written in the old format (until checkpoint59i) if it
304        recognizes an old meta file (no field-list).
305      - add a meta file in exp. which starts from a pickup: 2 cases:
306        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
307         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
308        b) a meta file describing the content of the associated pickup file
309         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
310    o pkg/mdsio & pkg/rw:
311      - new routine to read a meta file ; new set of routine to read
312        Multiple-fields file (with meta file).
313    o added open boundary conditions capability for seaice
314        HSNOW, HSALT, UICE, and VICE
315    
316    checkpoint59i
317    o adjoint:
318      * fix multiDimAdvection adjoint
319        (partial recomputation problem by TAF for fVerT(:,:,kDown)
320        and comlev1 size definition (maxpass vs. max. number of tracers)
321      * verification/global_ocean.90x45x15 adjoint now tests
322        NLFS and multiDimAdvection using DST3 (=30)
323      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
324    o pkg/kpp: add "_d 0" to real constant (if missing);
325      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
326      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
327    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
328      for internal parameters related to restart process (formerly from PARAMS.h)
329      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
330    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
331      as argument. (only atm2d & obcs write_pickup have not yet been updated)
332    o pkg/monitor:
333      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
334      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
335      - account for deep Atmosphere factor and density factor (anelastic)
336    o added open boundary conditions capability for seaice HEFF and AREA
337    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
338      thermodynamics
339      - requires a little reorganization, which affects the testreport results
340        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
341        so that now the conservative form is tested
342      - add a few comments
343    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
344    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
345    o add new diagnostics to seaice: advective, diffusive fluxes (only for
346      multidim-advection, for scheme 2 they are not filled) and transports,
347      thermodynamic growth rates
348    o change units of EmPmR (inside the code, + within coupling interface)
349      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
350      Affects results @ truncation level (cg2d match) and update output of
351       experiments: lab_sea(6), global_ocean.90x40x15(10),
352      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
353      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
354      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
355      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
356    
357    checkpoint59h
358    o pkg/exf:
359      - improve vectorization by moving if-statement out of loops in
360        exf_mapfields, exf_radiation
361      - exf_bulkformulae.F: introduce 2D fields and vectorize code
362    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
363    o testreport:
364      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
365        monitor & update offline_exf_seaice exp. output.
366      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
367    o pkg/seaice:
368      - bug fix in the evp solver: boundary conditions were affected be
369        masking of zMax/zMin (changes results)
370      - minor bug fix in boundary conditions in seaice_calc_strainrates
371        (changes results for no_slip)
372      - seaice_lsr.F: make interpolation of eta dependent on boundaries
373      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
374      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
375        stress formulation and no-slip boundary conditions
376    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
377      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
378    o pkg/seaice: a first HSALT time stepping equation has been checked in
379    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
380      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
381      without requiring DO-IF statements
382    o pkg/thsice:
383      use continuous power-law function for partition of energy between lateral
384      melting/freezing and thinning/thickening ; old code using step function
385      still available with #undef THSICE_FRACEN_POWERLAW
386      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
387    o testreport: change AD testing : check against results/output_adm.txt
388      using same scripts as for forward test.
389    
390    checkpoint59g
391    o adjoint testing: in preparation for changing testreport:
392      - output format: cost and grad written on separated lines
393      - ad output results in directory "results" (instead of "results_ad")
394    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
395    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
396    o pkg/ecco: allow user defined cost function contributions
397    o testreport:
398      Allow to choose (per experiment) the list of tested output variables
399       and the main variable (used to issue a pass/FAIL ) ;
400      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
401      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
402      Also modify printing of summary:
403       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
404       b) echo the list of tested variables in the individual summary.txt of
405          each experiment.
406    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
407      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
408      (but still depend on the tile decompostion of the domain).
409    o pkg/seaice: change a discretization detail to make the B-grid code
410      "more symmetric". This change is likely to remove all "ridges/leads" that
411      where quasi-aligned with the grid in B-grid solutions. It may also be
412      the solution to the stress coupling issues with the B-grid.
413    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
414      remove .cvsignore from input dir. (since testreport no longer run here).
415    o pkg/thsice:
416     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
417     - fix reshaping of sea-ice just after advection:
418       melt all the ice only if ice-volume is too small.
419     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
420       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
421     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
422    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
423      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
424    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
425      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
426      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
427      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
428      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
429      -> update output.txt
430    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
431     this affects truncation error: -> update output.txt of exp:
432      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
433      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
434    
435    checkpoint59f
436    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
437    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
438      a bounded range (in forward mode)
439    o pkg/ecco, ctrl, autodiff and mom_common:
440     internal parameter controls, completements of implementations
441    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
442    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
443      (not seem any difference in testing results).
444    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
445       at face corners.
446    o pkg/generic_advdiff:
447     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
448      loop range indices for computing vertical advection tendency
449      and do the calculation in the interior only (no overlap) ;
450      for now, only implemented for SOM advection (to save CPU time).
451     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
452    o exch2 adjoint
453      First set of changes:
454      - add exch2 hand-written adjoint templates
455      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
456        This will require cleanup in pkg/autodiff/*.F
457        (changed routines currently kept separate in verif. code/)
458      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
459        that used to hide exch2 or cubed-sphere specific code
460        (commented via 'cph-exch2')
461    o pkg/seaice
462      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
463    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
464       output of global_ocean.cs32x15.thsice .
465    
466    checkpoint59e
467    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
468      for B-grid vector (not yet tested) and C-grid vector (<- only used
469      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
470    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
471      (#ifdef ALLOW_SALT_PLUME)
472    o gather_2d/scatter_2d: removed halo regions
473    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
474      scheme and the corresponding test case (under front_relax dir). For now,
475      only available with Skew-flux form and not yet tested in realistic set-up.
476      adjoint: store directives updated, but gradient checks deteriorated,
477      so maybe GM/Redi adjoint is now broken.
478    o seaice adjoint
479      * add AREA, HEFF, HSNOW as control variable
480        (should not change lab_sea results)
481      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
482    o pkg/seaice:
483      * added computation of saltFlux in seaice_growth;
484        For time being, sea ice salinity is assumed constant
485        contribution of snow flooding to freshening of sea ice is neglected.
486        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
487        defaults to 0.0 in order to maintain backward compatibility.
488        Typical values for SEAICE_salinity are 4 to 10 g/kg.
489      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
490      * added SEAICE_availHeatFrac, which specifies fraction of surface level
491        heat content used to melt or grow ice
492      * commented out cap of HICE: it helps keep ice thinner
493      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
494      * applied OBCS T/S mask to HEFFM sea ice mask
495    
496    checkpoint59d
497    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
498     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
499     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
500    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
501     and change default value of parameter "GM_Small_Number";
502     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
503       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
504       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
505    o pkg/ecco: cost function when applying pkg/smooth to controls
506    o pkg/ctrl: add forcingPrecond run time parameter
507    o pkg/seaice:
508     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
509     - fix bug in metric terms of u-equation in LSR solver (implicit part),
510       changes verification/lab_sea
511     - rearrange implicit part of u-equation in LSR solver to make it easier to
512       read, understand, and debug. This causes changes at the truncation level.
513     - fix (serious) bug in the boundary conditions (sign error in the implicit
514       part) of the LSR solver. Changes all LSR results.
515     - fixed problem with HSNOW initialization to avoid thick snow when AREA
516       is initilized with small values - does not change lab_sea results.
517     - added HsnowFile initialization capability
518    o pkg/smooth: addition to model/src and pkg/ctrl so allow
519     initialization of pkg/smooth and application to control vector
520    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
521    o dependencies: pkg/profiles requires pkg/cal
522    o pkg/profiles:
523     - added option ALLOW_PROFILES_GENERICGRID
524         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
525         that interpolation information (grid points and coefficients) is provided
526         within the netcdf input files.
527         -> sample matlab scripts can be found in MITgcm_contrib/gael
528         that allow you to prepare netcdf input files.
529     - also modified: cleaner include statements, cleaner error print statements,
530       cleaner stops when error, and more tests of the netcdf input files consistency.
531    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
532    o pkg/seaice:
533     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
534       requires a new routine: seaice_diagnostics_fill.F
535     - make sure that seaice does not move if not forced (pressure replacement
536       method, Hibler and Ip, 1995), changes results
537     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
538     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
539       It is turned off by default (=-1.), because it changes the results.
540     - make it possible to read AREA from a file, too.
541    
542    checkpoint59c
543    o add S/R and diagnostics for oceanic mixed-layer depth
544    o move GMRedi call after all vertical mixing schemes (including KPP)
545    o pkg/thsice:
546     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
547      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
548    o pkg/obcs:
549     - bug fix for balance code
550    o pkg/seaice:
551      - allow values of SEAICE_elasticParm > 1
552      - add new parameter SEAICE_evpTauRelax as an alternative
553        to SEAICE_elasticParm
554      - make lsr boundary conditions free slip (by default), changes result
555      - add code for no slip boundary conditions for lsr
556      - set minimum of zeta to zero (and not 4e8) (changes results)
557      - add a cap on AREA after advecting AREA if seaice_growth is not called
558    o change calculation of Visbeck K:
559      - no longer depend on tapering scheme; instead, compute slope (limited
560        by GM_maxSlope). this is equivalent to what was comuted before with
561        clipping or linear tappering.
562      - fix vertical averaging (wrong by 1/2 level)
563      - leave the old version (but will not be maintained) within
564        #ifdef OLD_VISBECK_CALC / #endif
565      - update output of exp. ideal_2D_oce
566    o change error catch in calc_r_star to improve vectorization
567    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
568      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
569    o adjoint:
570      Re-organized adjoint checkpointing according to Matt Mazloff
571      (but with modifs/completions/cleanups)
572      Storing is now bundled into large arrays to optimized I/O
573      (and second step in cleanup of the_main_loop)
574    
575    checkpoint59b
576    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
577      - export/import (between ocean & coupler) fields needed for ocean DIC.
578    o pkg/seaice:
579      - get rid of three more exchanges seaice_calc_viscosities (required
580        different loop boundaries in seaice_lsr and seaice_ocean_stress)
581      - bug fix in seaice_ocean_stress (update of lab_sea required)
582      - reduce loop boundaries to necessary minimum also in seaice_evp
583      - go back to the old way of computing deltaC/Z as the adjoint likes that
584        better
585    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
586      passive tracer to an Age Tracer) + update output.txt
587    o pkg/exf:
588      - implement A-grid / C-grid selection for wind-stress input files.
589      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
590      for now, in exf_bulk_largeyeager04.F only :
591      - change implementation for case where windspeed + 2. components wind-stress
592        are read-in. AND use rhoConstFresh to convert evap.
593    o pkg/seaice:
594      - use correct EXCH_UV for wind-forcing (on A-grid).
595      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
596        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
597    o pkg/exf:
598      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
599      EXF_INTERPOLATION:
600      - merge global_with_exf/code version of exf_interp_read.F
601        to the main code ;
602      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
603        reading the file ; Important: This options needs to be defined to recover
604        previous code.
605        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
606      - no longer loose real*8 precision along the way when using exf_iprec=64.
607    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
608      - change discretisation of evp-solver in order to avoid another exchange
609        (changes lab_sea) and clean up a little
610      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
611        help the adjoint (this also changes the results slightly)
612      - add a few "_d 0" where they had been missing in seaice_evp.F
613      - cleaning up: remove unused seaice_calc_rhs.F
614    o pkg/exf: some cleaning-up:
615      - change various "constants" into runtime parameters
616      - cleaned-up Large&Yeager04 routine which should eventually
617        replace exf_bulkformulae.F (changed names of S/R and CPP)
618        and merged various ALLOW_ATM_WIND options
619     only used with thsice pkg (in thsice_get_exf.F):
620      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
621        which are used when useStabilityFct_overIce=TRUE (= the default)
622      - change default values of ice & snow emissivity and scale downward LW
623        by ice & snow emissivity.
624    o pkg/thsice:
625     fix few little problems, in thsice_calc_thickn.F:
626      - growth vertically (and not laterally) if iceFrac == iceMaskMax
627      - melt only laterally if hIce < hThinIce (as the comments say)
628      and in thsice_extend.F:
629      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
630      - start to form ice as soon as the minimum ice-volume is reachable.
631     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
632      and cpl_aim+ocn
633    o pkg/kpp
634     - move computation of surface related input fields to KPP into a new
635       subroutine kpp_forcing_surf.F
636     - remove wrong (within bi,bj loops) EXCH calls.
637     - little cleaning (add argument myThid in last position, cvs header ...)
638     - for now, fix conservation problem by exchanging KPPviscAz (may not
639       be the best fix)
640    o pkg/seaice
641     - check for inconsistent evp parameter/cpp-flag combination
642     - remove leftover errIO flat for obsolete name list error handling
643    o OpenAD
644     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
645    
646    checkpoint59a
647    o pkg/seaice: some parameter clarifications and a little bit of clean up
648    o pkg/thsice: rename run-time parameters:
649       himin       -> hIceMin
650       himin0      -> hThinIce
651       hihig       -> hThickIce
652       i0          -> i0swFrac
653       transCoef   -> bMeltCoef
654       frac_energy -> fracMelting
655      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
656       with default values (for now) that do not change the results.
657      remove old version of thsice vars advection in pkg/seaice.
658    o in FFIELDS.h:
659      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
660      - make pLoad & sIceLoad always available (but still only used if
661         ATMOSPHERIC_LOADING is #define).
662    o pkg/kpp: replaced _KPP_RL with _RL
663    o bug fixes for vertical diffusivity computations when both KPP and
664        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
665        are no longer updating the vertical diffusivity array
666        (passed as argument) but are (re-) setting those arrays.
667    o pkg/seaice: fix bug in evp solver, while doing that
668      - change (improve?) discretization of stress computations for both
669        cgrid-lsr and evp solver
670      - add a new routine to compute strain rates
671      - the above changes lab_sea results
672      - add no slip conditions for evp solver (off by default), lsr-version
673        may follow
674      - fix exchange for shear at Z-points (does not change lab_sea)
675      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
676        (to force the user to pick a time step since there is not "safe" way
677        of choosing it)
678      - add principal stress diagnostics
679      - rearrange fields for evp a little to avoid having to call a: too many
680        exchanges and b: exchanges for stress trensor components which we do
681        not have.
682      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
683        of evp, complete rewrite for lsr case (latter is does not yet work
684        in all cases)
685    o pkg/kpp: add code to have mixing in shelf ice caverns
686      - add myThid to all kpp routines (long overdue)
687    
688    checkpoint59
689    o pkg/exf:
690      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
691        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
692      - move exf header files from lower_case.h to UPPER_CASE.h ;
693        add missing cvs Header & Name
694      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
695      - add namelist param. selectStressGridPosition, exf_monFreq
696      - retire many _CLIM routines, and remove data.exf_clim
697        + params moved to data.exf
698        + climsst, climsss now handled by exf_set_gen, i.e.
699          climss?period=0 refers to constant field,
700          climss?period=-12 to monthly forcing
701      - split up namelists in data.exf
702    o pkg/seaice:
703      - remove seaice_exch and seaice_exch_uv
704      - remove superfluous exchange of theta
705      - add myThid to seaice_budget_ocean/ice
706      - add new interface for atmospheric wind forcing (C-grid only)
707        + new routine
708        + two new field (taux, tauy for stress over ice)
709        + removed one global field (DAIRN) for C-grid case only
710    o pkg/thsise
711      - 2nd set of modifs for thsice adjoint in conjunction with exf
712    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
713    
714    checkpoint58y_post
715    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
716      vertical diffusivity, similar to that in MOM4; turned on using
717      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
718      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
719    o Added capability for 3D specification of background vertical diffusion
720      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
721      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
722      "data" file that contains the 3D vertical diffusivity coefficients.
723    o ice dynamics (pkg/seaice) with thsice thermodynamics:
724      - add code within pkg thsice to advect & diffuse sea-ice fields
725      similar to (and will replace) what has been added in  seaice_advdiff.F,
726      but: - conserving Mass, Heat & Salt.
727           - better when using non-linear advection scheme (not yet fully tested)
728           - can also be used in atmospheric set-up (for now, only the diffusion).
729    
730    checkpoint58x_post
731    o IO option for global-file compact format:
732      - add options when generating topology (utils/exch2/matlab-topology-generator)
733      - add I/O capability (pkg/mdsio).
734      - adapt utils/matlab/rdmds.m to read this format.
735      for now long-line format not yet supported by pkg/mdsio (& exch2).
736    o shelfice: add a few diagnostics
737    
738  checkpoint58w_post  checkpoint58w_post
739  o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:  o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
740    rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref    rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref

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