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revision 1.819 by jmc, Fri May 18 03:02:47 2007 UTC revision 1.1007 by mlosch, Thu Jun 26 14:43:25 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 testreport: modify syntax of awk, so that it works also with
8      awk, and not only with nawk and gawk
9    
10    checkpoint61
11    o autodiff
12      Change default for TAF usage by removing argument '-nonew_arg'
13      This changes TAF subroutine argument list (ordering of active var.)
14      Omission of this flag leads to incompatibility w.r.t. TAMC
15      To restore TAMC-compatibility, need following modifs:
16      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
17      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
18      Tested TAF version is 1.9.22
19      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
20    
21    checkpoint60
22    --->>> This is the last checkpoint for which generating the adjoint
23    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
24    --->>> by default.
25    --->>> Future checkpoints will ommit this flag by default.
26    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
27    o pkg/grdchk: Add gradient check to etan0 perturbations.
28    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
29    o pkg/autodiff: more flexibility in zeroadj.
30      model/src: modifying do_oceanic_phys.F accordingly.
31    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
32    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
33      special setup of gmredi for which the adjoint is stable
34      enough for parameter optimization.
35    o bridging the gap between eddy stress and GM.
36      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
37          along with a change in CPP option (now ALLOW_EDDYPSI).
38      -> when using GM w/ GM_AdvForm:
39          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
40          is applied either in the tracer Eq. or in momentum Eq.
41          depending on data.gmredi (intro. GM_InMomAsStress).
42      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
43      The key modifications are in model/src/taueddy_external_forcing.F
44      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
45    
46    checkpoint59r
47    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
48      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
49      fix option to read coriolis(@ cell-corner) from files with CS-grid.
50    o pkg/mnc: add some attributes to standard 1D-coordinate variables
51    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
52      mass points, when using mnc for output
53      - add runtime parameter (missing_value, missing_value_int) to override
54        default (which is the value of getcon('UNDEF'))
55    o pkg/mnc: prepare mnc for the actual use of missing values with the
56      diagnostics package: small fix in mnc_cw_readwrite.template and more
57      initialisation of never used fields
58      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
59      versions
60    o pkg/thsice/thsice_ini_vars.F added default initial values so that
61      thermodynamics sea ice solver does not blow up when some initial fields
62      are missing.
63    o move from external_forcing_surf.F to ini_forcing.F
64      the p-coord. hack consisting in using pLoad to set phi0surf ;
65      update output of tutorial_global_oce_in_p (affected @ truncation level).
66    o Freshen up a bit hs94.1x64x5, notably:
67      remove rotationPeriod and tRef=5*0. (adjoint only), and add
68      exactConserv=.TRUE.
69    o pkg/generic_advdiff:
70      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
71      applies to files where Temperature & Salinity 2nd Order moments are used.
72    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
73      this uses a dynamically allocated internal state data structure
74      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
75      and requires a fortran 90 compiler
76    
77    checkpoint59q
78    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
79       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
80    o Refresh tutorial_global_oce_biogeo, notably:
81      - change bathymetry (put back seamounts in ACC, use hFacs)
82      - change EOS (POLY3 --> JMD95Z)
83      - use Bryan-Lewis vertical diffusivity
84      - use multidimensional advection
85      - remove old virtual virtual in dic pkg, now done through ptracer pkg
86      - change a couple of parameters in dic pkg
87    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
88    o pkg/obcs: change default to OBCSfixTopo = .true.,
89      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
90      - replace "debugMode" with "debugLevel .GE. debLevB"
91    o implementation of TAF directives for gchem,cfc,dic
92    o remove "exp5" (replaced by tutorial_deep_convection).
93    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
94      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
95      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
96      --> changes results in exp4, seaice_obcs
97    o tutorial_deep_convection :
98      update the set-up and increase resolution and domain size ; start
99      from pseudo initial conditions = output at t=120mn in order to see
100      something happening when running testreport.
101    o pkg/seaice: add os7mp as an advection scheme
102                  add check for advection schemes
103                  add a flag for restoring T and S underneath sea ice
104    o pkg/my82: add netcdf-support and diagnostics
105    o thsice pkg:
106      - Now hsMax limits snow height by turning it into ice following
107        flooding scheme (and now conserving energy)
108      - Slight rewriting of the formula in thsice_calc_thick.F
109      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
110      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
111    
112    checkpoint59p
113    o gchem / dic / cfc :
114      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
115      - add new parameter files: "data.dic" & "data.cfc" ;
116      - various re-arrangement in initialisation & header file ;
117      - fix tutorial_global_oce_biogeo for multi-threaded test.
118    o pkg/dic: test for "pickup_dic" file when restarting ;
119      if no pickup-file, can restart with a re-initialised pH (same as it did
120      before) providing pickupStrictlyMatch is set to False.
121    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
122      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
123    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
124      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
125    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
126     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
127       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
128    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
129       scheme to use for vorticty-term ;
130     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
131       (with default selectVortScheme, return to original discretisation)
132     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
133    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
134    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
135      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
136      also fix diagnostics VISCAHW & VISCA4W.
137    
138    checkpoint59o
139    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
140    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
141      move a few statemens out the main loop into separate loops
142    o pkg/shelfice:
143      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
144        (kg/m^2/s), does not break tests, because in verification/isomip,
145        rhoConstFresh=rhoConst (by accident)
146      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
147      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
148        new file model/src/seawater.F, so that they are available for all pkgs.
149      - convert potential temperature into in-situ temperature. This changes the
150        isomip tests => update tests
151    o add a flag writePickupAtEnd (default=true) to be able to suppress
152      writing a pickup at the last timestep
153    o tools/mpack-1.6 :
154      - disable automake (not working) and autoconf (not needed).
155      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
156        also cleaner with much less compilation warnings.
157    o pkg/profiles:
158      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
159      (for "less than 32 characters name" compiler requirement)
160    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
161      conditions that have a different sampling frequency than S/T/U/V obcs
162    o pkg/diagnostics (stats-diags):
163      - fix global Min/Max in case 1 processor get only empty tiles
164    o genmake2: replace (4 times)
165         make genmake_tc_1.o >> genmake_warnings 2>&1
166      with
167         COMM="$CC $CFLAGS -c genmake_tc_1.c"
168         echo $COMM >> genmake_warnings
169         $COMM >> genmake_warnings 2>&1
170      to make genmake2 always see the value of CC as specified in the optfile.
171    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
172      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
173      - modify verification advect_cs test to test SOM-advection on CS-grid.
174    o pkg/ctrl:
175      - Rewrite of ctrl_map_ini_ecco.F,
176        introducing a generic routine (ctrl_map_ini_gen.F).
177      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
178    
179    checkpoint59n
180    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
181      number in dedicate array "hdiag":
182      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
183        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
184      - many small changes (integer format) for large number of diagnostics
185      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
186        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
187    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
188      usingSphericalGrid, this allows to define the rotated grid coordinates
189      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
190      geographical coordinates according to the inverse of the rotation defined
191      by the Euler angles, so that Coriolis parameter and online-interpolation by
192      exf works with the geographical coordinates on XC/YC/XG/YG.
193      Naturally, this feature does not work with all packages, so some
194      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
195      profiles), because there the coordinates are assumed to be regular
196      spherical grid coordinates.
197    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
198      - introduce isopycnal diffusion coefficient control.
199    o tools/adjoint_options:
200      - additional control vector components.
201    o pkg/mnc: have mnc create marginally meaning full coordinate variables
202      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
203    o pkg/mypackage:
204      - add example of read/write pickup for state-var ;
205      - add entry points to the main code for state-vars diags & write-pickup.
206    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
207      transitions for useExfYearlyFields
208      - add new subroutine that determines the file to read from for
209        use*YearlyFields = .TRUE. and .FALSE.
210      - add a verification experiment to global_with_exf that tests
211        useExfYearlyFields with USE_EXF_INTERPOLATION defined
212    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
213      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
214      subroutines (which could be generated from a template, because they are
215      almost identical), for now they are included in obcs_prescribe_read.F for
216      simplicity
217    o pkg/exf:
218      - add a little more diagnostic to exf_interp_read (in analogy to
219        mds_read_field, can be turned off with debugLevel < debugLevA=1)
220      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
221        ugly but fast by unrolling short inner loops, inserting a unroll=8
222        directive in routine lagran, and splitting a loop and making do while the
223        outermost loop (the latter requires the intoduction of index arrays)
224    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
225    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
226      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
227    o verification/seaice_obcs: updated for restart test and latest options
228    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
229      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
230      for now this is only available for the C-grid code and also within
231      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
232    
233    checkpoint59m
234    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
235      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
236    o gad_som : fix flux output (& diagnostics) to have same units as other  
237      advection scheme fluxes (was previously multiplied by deltaT).  
238    o added verification/seaice_obcs both to test seaice open boundaries
239      and to provide an example matlab scrpt for generating them
240    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
241    o pkg/salt_plume: clean up salt_plume_frac.F to
242      remove redundancy in PlumeMethod 1 and 4
243    o pkg/kpp: added saltplume diagnostics
244    o pkg/obcs and pkg/seaice:
245      - do not set uice and vice to zero when OB*icefile are unspecified
246      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
247      - moved seaice tracer obcs after call to seaice_growth
248    o pkg/salt_plume: added various options for salt plume depth
249      criterion and for vertical distribution of the salt
250    
251    checkpoint59l
252    o pkg/ptracers: new version of ptracers pickup:
253      read meta file and write only fields which are needed to restart.
254      ( same logic as main pickup file ; also using pickupStrictlyMatch )
255    o pkg/seaice:
256      - add timescale for melting due to warm mixed layer as a means of
257        setting SEAICE_availHeatFrac more conveniently
258      - add a CPP-flag/runtime parameter check for flooding algorithm
259      - reformulated availHeat in seaice_growth.F to be independent of AREA
260    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
261      unit changes
262    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
263    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
264      SX vector computer.
265    o pkg/seaice:
266      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
267        seaice forcing fields can now be read only through pkg/exf
268      - removed some unused halos
269    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
270    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
271      or U/VICE from U/VWIND before computing U/VSTRESS
272    
273    checkpoint59k
274    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
275      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
276    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
277      all experiments pass when compile with un-initialised var. checking option.
278    o added pkg/salt_plume
279    o script to test restart (for now, in MITgcm_contrib/jmc_script)
280    o pkg/seaice: new read/write pickup version.
281      read meta file and write only fields which are needed to restart.
282      ( same logic as main pickup file ; also using pickupStrictlyMatch )
283    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
284    o lab_sea.hb87: modify the domain & update output.hb87.txt :
285      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
286      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
287      process. Fixed here by closing the domain at the Northern boundary.
288    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
289    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
290      a set of consecutive levels in/from a 3-D array.
291    o pkg/ptracers:
292      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
293      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
294    
295    checkpoint59j
296    o in pkgs: dic, obcs, offline, rbcs:
297      standard way to compute coeff. for time interpolation between 2 time reccords
298      which retains full precision (& make results less dependent on compiler).
299      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
300    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
301      packages instead of reading ice cover and wind speed separately
302    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
303     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
304      to allow to compile customized code before the update)
305    o cleaning-up:
306      - fix CPP instruction syntax in pkg/obcs
307      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
308        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
309      - fix some threads issue in IO parts.
310    o pkg/dic:
311      - add tons of "_d 0" (--> much better testreports !)
312       and then update outputs of tutorial_global_oce_biogeo
313    o pkg/mom_fluxform:
314      add a special version of momentum advection intended to conserve momentum
315      next to a bathymetry step or a coastline edge. (default = off = #undef)
316    o new read/write pickup version:
317      - for now, only implemented for main (mdsio) pickup file.
318      - write out only what is needed to restart; merge pickup_nh , pickup_ph
319        and main pickup together.
320      - read meta file; read only what is needed to restart; stop if a field
321        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
322        if it make sense (even if the restart is not perfect).
323      - if no meta file, assume that pickup to read corresponds exactly to
324        a pickup that would currently be written.
325      - read pickup written in the old format (until checkpoint59i) if it
326        recognizes an old meta file (no field-list).
327      - add a meta file in exp. which starts from a pickup: 2 cases:
328        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
329         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
330        b) a meta file describing the content of the associated pickup file
331         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
332    o pkg/mdsio & pkg/rw:
333      - new routine to read a meta file ; new set of routine to read
334        Multiple-fields file (with meta file).
335    o added open boundary conditions capability for seaice
336        HSNOW, HSALT, UICE, and VICE
337    
338    checkpoint59i
339    o adjoint:
340      * fix multiDimAdvection adjoint
341        (partial recomputation problem by TAF for fVerT(:,:,kDown)
342        and comlev1 size definition (maxpass vs. max. number of tracers)
343      * verification/global_ocean.90x45x15 adjoint now tests
344        NLFS and multiDimAdvection using DST3 (=30)
345      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
346    o pkg/kpp: add "_d 0" to real constant (if missing);
347      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
348      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
349    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
350      for internal parameters related to restart process (formerly from PARAMS.h)
351      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
352    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
353      as argument. (only atm2d & obcs write_pickup have not yet been updated)
354    o pkg/monitor:
355      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
356      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
357      - account for deep Atmosphere factor and density factor (anelastic)
358    o added open boundary conditions capability for seaice HEFF and AREA
359    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
360      thermodynamics
361      - requires a little reorganization, which affects the testreport results
362        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
363        so that now the conservative form is tested
364      - add a few comments
365    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
366    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
367    o add new diagnostics to seaice: advective, diffusive fluxes (only for
368      multidim-advection, for scheme 2 they are not filled) and transports,
369      thermodynamic growth rates
370    o change units of EmPmR (inside the code, + within coupling interface)
371      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
372      Affects results @ truncation level (cg2d match) and update output of
373       experiments: lab_sea(6), global_ocean.90x40x15(10),
374      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
375      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
376      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
377      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
378    
379    checkpoint59h
380    o pkg/exf:
381      - improve vectorization by moving if-statement out of loops in
382        exf_mapfields, exf_radiation
383      - exf_bulkformulae.F: introduce 2D fields and vectorize code
384    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
385    o testreport:
386      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
387        monitor & update offline_exf_seaice exp. output.
388      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
389    o pkg/seaice:
390      - bug fix in the evp solver: boundary conditions were affected be
391        masking of zMax/zMin (changes results)
392      - minor bug fix in boundary conditions in seaice_calc_strainrates
393        (changes results for no_slip)
394      - seaice_lsr.F: make interpolation of eta dependent on boundaries
395      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
396      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
397        stress formulation and no-slip boundary conditions
398    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
399      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
400    o pkg/seaice: a first HSALT time stepping equation has been checked in
401    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
402      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
403      without requiring DO-IF statements
404    o pkg/thsice:
405      use continuous power-law function for partition of energy between lateral
406      melting/freezing and thinning/thickening ; old code using step function
407      still available with #undef THSICE_FRACEN_POWERLAW
408      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
409    o testreport: change AD testing : check against results/output_adm.txt
410      using same scripts as for forward test.
411    
412    checkpoint59g
413    o adjoint testing: in preparation for changing testreport:
414      - output format: cost and grad written on separated lines
415      - ad output results in directory "results" (instead of "results_ad")
416    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
417    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
418    o pkg/ecco: allow user defined cost function contributions
419    o testreport:
420      Allow to choose (per experiment) the list of tested output variables
421       and the main variable (used to issue a pass/FAIL ) ;
422      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
423      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
424      Also modify printing of summary:
425       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
426       b) echo the list of tested variables in the individual summary.txt of
427          each experiment.
428    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
429      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
430      (but still depend on the tile decompostion of the domain).
431    o pkg/seaice: change a discretization detail to make the B-grid code
432      "more symmetric". This change is likely to remove all "ridges/leads" that
433      where quasi-aligned with the grid in B-grid solutions. It may also be
434      the solution to the stress coupling issues with the B-grid.
435    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
436      remove .cvsignore from input dir. (since testreport no longer run here).
437    o pkg/thsice:
438     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
439     - fix reshaping of sea-ice just after advection:
440       melt all the ice only if ice-volume is too small.
441     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
442       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
443     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
444    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
445      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
446    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
447      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
448      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
449      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
450      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
451      -> update output.txt
452    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
453     this affects truncation error: -> update output.txt of exp:
454      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
455      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
456    
457    checkpoint59f
458    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
459    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
460      a bounded range (in forward mode)
461    o pkg/ecco, ctrl, autodiff and mom_common:
462     internal parameter controls, completements of implementations
463    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
464    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
465      (not seem any difference in testing results).
466    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
467       at face corners.
468    o pkg/generic_advdiff:
469     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
470      loop range indices for computing vertical advection tendency
471      and do the calculation in the interior only (no overlap) ;
472      for now, only implemented for SOM advection (to save CPU time).
473     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
474    o exch2 adjoint
475      First set of changes:
476      - add exch2 hand-written adjoint templates
477      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
478        This will require cleanup in pkg/autodiff/*.F
479        (changed routines currently kept separate in verif. code/)
480      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
481        that used to hide exch2 or cubed-sphere specific code
482        (commented via 'cph-exch2')
483    o pkg/seaice
484      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
485    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
486       output of global_ocean.cs32x15.thsice .
487    
488    checkpoint59e
489    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
490      for B-grid vector (not yet tested) and C-grid vector (<- only used
491      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
492    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
493      (#ifdef ALLOW_SALT_PLUME)
494    o gather_2d/scatter_2d: removed halo regions
495    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
496      scheme and the corresponding test case (under front_relax dir). For now,
497      only available with Skew-flux form and not yet tested in realistic set-up.
498      adjoint: store directives updated, but gradient checks deteriorated,
499      so maybe GM/Redi adjoint is now broken.
500    o seaice adjoint
501      * add AREA, HEFF, HSNOW as control variable
502        (should not change lab_sea results)
503      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
504    o pkg/seaice:
505      * added computation of saltFlux in seaice_growth;
506        For time being, sea ice salinity is assumed constant
507        contribution of snow flooding to freshening of sea ice is neglected.
508        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
509        defaults to 0.0 in order to maintain backward compatibility.
510        Typical values for SEAICE_salinity are 4 to 10 g/kg.
511      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
512      * added SEAICE_availHeatFrac, which specifies fraction of surface level
513        heat content used to melt or grow ice
514      * commented out cap of HICE: it helps keep ice thinner
515      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
516      * applied OBCS T/S mask to HEFFM sea ice mask
517    
518    checkpoint59d
519    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
520     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
521     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
522    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
523     and change default value of parameter "GM_Small_Number";
524     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
525       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
526       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
527    o pkg/ecco: cost function when applying pkg/smooth to controls
528    o pkg/ctrl: add forcingPrecond run time parameter
529    o pkg/seaice:
530     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
531     - fix bug in metric terms of u-equation in LSR solver (implicit part),
532       changes verification/lab_sea
533     - rearrange implicit part of u-equation in LSR solver to make it easier to
534       read, understand, and debug. This causes changes at the truncation level.
535     - fix (serious) bug in the boundary conditions (sign error in the implicit
536       part) of the LSR solver. Changes all LSR results.
537     - fixed problem with HSNOW initialization to avoid thick snow when AREA
538       is initilized with small values - does not change lab_sea results.
539     - added HsnowFile initialization capability
540    o pkg/smooth: addition to model/src and pkg/ctrl so allow
541     initialization of pkg/smooth and application to control vector
542    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
543    o dependencies: pkg/profiles requires pkg/cal
544    o pkg/profiles:
545     - added option ALLOW_PROFILES_GENERICGRID
546         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
547         that interpolation information (grid points and coefficients) is provided
548         within the netcdf input files.
549         -> sample matlab scripts can be found in MITgcm_contrib/gael
550         that allow you to prepare netcdf input files.
551     - also modified: cleaner include statements, cleaner error print statements,
552       cleaner stops when error, and more tests of the netcdf input files consistency.
553    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
554    o pkg/seaice:
555     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
556       requires a new routine: seaice_diagnostics_fill.F
557     - make sure that seaice does not move if not forced (pressure replacement
558       method, Hibler and Ip, 1995), changes results
559     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
560     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
561       It is turned off by default (=-1.), because it changes the results.
562     - make it possible to read AREA from a file, too.
563    
564    checkpoint59c
565    o add S/R and diagnostics for oceanic mixed-layer depth
566    o move GMRedi call after all vertical mixing schemes (including KPP)
567    o pkg/thsice:
568     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
569      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
570    o pkg/obcs:
571     - bug fix for balance code
572    o pkg/seaice:
573      - allow values of SEAICE_elasticParm > 1
574      - add new parameter SEAICE_evpTauRelax as an alternative
575        to SEAICE_elasticParm
576      - make lsr boundary conditions free slip (by default), changes result
577      - add code for no slip boundary conditions for lsr
578      - set minimum of zeta to zero (and not 4e8) (changes results)
579      - add a cap on AREA after advecting AREA if seaice_growth is not called
580    o change calculation of Visbeck K:
581      - no longer depend on tapering scheme; instead, compute slope (limited
582        by GM_maxSlope). this is equivalent to what was comuted before with
583        clipping or linear tappering.
584      - fix vertical averaging (wrong by 1/2 level)
585      - leave the old version (but will not be maintained) within
586        #ifdef OLD_VISBECK_CALC / #endif
587      - update output of exp. ideal_2D_oce
588    o change error catch in calc_r_star to improve vectorization
589  o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and  o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
590    add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).    add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
591    o adjoint:
592      Re-organized adjoint checkpointing according to Matt Mazloff
593      (but with modifs/completions/cleanups)
594      Storing is now bundled into large arrays to optimized I/O
595      (and second step in cleanup of the_main_loop)
596    
597  checkpoint59b  checkpoint59b
598  o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):  o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
# Line 59  o pkg/exf: some cleaning-up: Line 646  o pkg/exf: some cleaning-up:
646  o pkg/thsice:  o pkg/thsice:
647   fix few little problems, in thsice_calc_thickn.F:   fix few little problems, in thsice_calc_thickn.F:
648    - growth vertically (and not laterally) if iceFrac == iceMaskMax    - growth vertically (and not laterally) if iceFrac == iceMaskMax
649    - melt laterally only if hIce < hThinIce (as the comments say)    - melt only laterally if hIce < hThinIce (as the comments say)
650    and in thsice_extend.F:    and in thsice_extend.F:
651    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
652    - start to form ice as soon as the minimum ice-volume is reachable.    - start to form ice as soon as the minimum ice-volume is reachable.
# Line 96  o in FFIELDS.h: Line 683  o in FFIELDS.h:
683       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
684  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
685  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
686      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
687        are no longer updating the vertical diffusivity array
688        (passed as argument) but are (re-) setting those arrays.
689  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
690    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
691      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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