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revision 1.771 by mlosch, Thu Feb 15 14:57:36 2007 UTC revision 1.1002 by gforget, Wed Jun 11 19:32:27 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/grdchk: Add gradient check to etan0 perturbations.
8    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
9    o pkg/autodiff: more flexibility in zeroadj.
10      model/src: modifying do_oceanic_phys.F accordingly.
11    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
12    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
13      special setup of gmredi for which the adjoint is stable
14      enough for parameter optimization.
15    o bridging the gap between eddy stress and GM.
16      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
17          along with a change in CPP option (now ALLOW_EDDYPSI).
18      -> when using GM w/ GM_AdvForm:
19          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
20          is applied either in the tracer Eq. or in momentum Eq.
21          depending on data.gmredi (intro. GM_InMomAsStress).
22      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
23      The key modifications are in model/src/taueddy_external_forcing.F
24      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
25    checkpoint59r
26    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
27      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
28      fix option to read coriolis(@ cell-corner) from files with CS-grid.
29    o pkg/mnc: add some attributes to standard 1D-coordinate variables
30    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
31      mass points, when using mnc for output
32      - add runtime parameter (missing_value, missing_value_int) to override
33        default (which is the value of getcon('UNDEF'))
34    o pkg/mnc: prepare mnc for the actual use of missing values with the
35      diagnostics package: small fix in mnc_cw_readwrite.template and more
36      initialisation of never used fields
37      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
38      versions
39    o pkg/thsice/thsice_ini_vars.F added default initial values so that
40      thermodynamics sea ice solver does not blow up when some initial fields
41      are missing.
42    o move from external_forcing_surf.F to ini_forcing.F
43      the p-coord. hack consisting in using pLoad to set phi0surf ;
44      update output of tutorial_global_oce_in_p (affected @ truncation level).
45    o Freshen up a bit hs94.1x64x5, notably:
46      remove rotationPeriod and tRef=5*0. (adjoint only), and add
47      exactConserv=.TRUE.
48    o pkg/generic_advdiff:
49      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
50      applies to files where Temperature & Salinity 2nd Order moments are used.
51    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
52      this uses a dynamically allocated internal state data structure
53      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
54      and requires a fortran 90 compiler
55    
56    checkpoint59q
57    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
58       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
59    o Refresh tutorial_global_oce_biogeo, notably:
60      - change bathymetry (put back seamounts in ACC, use hFacs)
61      - change EOS (POLY3 --> JMD95Z)
62      - use Bryan-Lewis vertical diffusivity
63      - use multidimensional advection
64      - remove old virtual virtual in dic pkg, now done through ptracer pkg
65      - change a couple of parameters in dic pkg
66    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
67    o pkg/obcs: change default to OBCSfixTopo = .true.,
68      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
69      - replace "debugMode" with "debugLevel .GE. debLevB"
70    o implementation of TAF directives for gchem,cfc,dic
71    o remove "exp5" (replaced by tutorial_deep_convection).
72    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
73      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
74      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
75      --> changes results in exp4, seaice_obcs
76    o tutorial_deep_convection :
77      update the set-up and increase resolution and domain size ; start
78      from pseudo initial conditions = output at t=120mn in order to see
79      something happening when running testreport.
80    o pkg/seaice: add os7mp as an advection scheme
81                  add check for advection schemes
82                  add a flag for restoring T and S underneath sea ice
83    o pkg/my82: add netcdf-support and diagnostics
84    o thsice pkg:
85      - Now hsMax limits snow height by turning it into ice following
86        flooding scheme (and now conserving energy)
87      - Slight rewriting of the formula in thsice_calc_thick.F
88      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
89      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
90    
91    checkpoint59p
92    o gchem / dic / cfc :
93      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
94      - add new parameter files: "data.dic" & "data.cfc" ;
95      - various re-arrangement in initialisation & header file ;
96      - fix tutorial_global_oce_biogeo for multi-threaded test.
97    o pkg/dic: test for "pickup_dic" file when restarting ;
98      if no pickup-file, can restart with a re-initialised pH (same as it did
99      before) providing pickupStrictlyMatch is set to False.
100    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
101      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
102    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
103      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
104    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
105     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
106       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
107    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
108       scheme to use for vorticty-term ;
109     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
110       (with default selectVortScheme, return to original discretisation)
111     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
112    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
113    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
114      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
115      also fix diagnostics VISCAHW & VISCA4W.
116    
117    checkpoint59o
118    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
119    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
120      move a few statemens out the main loop into separate loops
121    o pkg/shelfice:
122      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
123        (kg/m^2/s), does not break tests, because in verification/isomip,
124        rhoConstFresh=rhoConst (by accident)
125      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
126      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
127        new file model/src/seawater.F, so that they are available for all pkgs.
128      - convert potential temperature into in-situ temperature. This changes the
129        isomip tests => update tests
130    o add a flag writePickupAtEnd (default=true) to be able to suppress
131      writing a pickup at the last timestep
132    o tools/mpack-1.6 :
133      - disable automake (not working) and autoconf (not needed).
134      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
135        also cleaner with much less compilation warnings.
136    o pkg/profiles:
137      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
138      (for "less than 32 characters name" compiler requirement)
139    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
140      conditions that have a different sampling frequency than S/T/U/V obcs
141    o pkg/diagnostics (stats-diags):
142      - fix global Min/Max in case 1 processor get only empty tiles
143    o genmake2: replace (4 times)
144         make genmake_tc_1.o >> genmake_warnings 2>&1
145      with
146         COMM="$CC $CFLAGS -c genmake_tc_1.c"
147         echo $COMM >> genmake_warnings
148         $COMM >> genmake_warnings 2>&1
149      to make genmake2 always see the value of CC as specified in the optfile.
150    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
151      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
152      - modify verification advect_cs test to test SOM-advection on CS-grid.
153    o pkg/ctrl:
154      - Rewrite of ctrl_map_ini_ecco.F,
155        introducing a generic routine (ctrl_map_ini_gen.F).
156      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
157    
158    checkpoint59n
159    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
160      number in dedicate array "hdiag":
161      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
162        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
163      - many small changes (integer format) for large number of diagnostics
164      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
165        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
166    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
167      usingSphericalGrid, this allows to define the rotated grid coordinates
168      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
169      geographical coordinates according to the inverse of the rotation defined
170      by the Euler angles, so that Coriolis parameter and online-interpolation by
171      exf works with the geographical coordinates on XC/YC/XG/YG.
172      Naturally, this feature does not work with all packages, so some
173      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
174      profiles), because there the coordinates are assumed to be regular
175      spherical grid coordinates.
176    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
177      - introduce isopycnal diffusion coefficient control.
178    o tools/adjoint_options:
179      - additional control vector components.
180    o pkg/mnc: have mnc create marginally meaning full coordinate variables
181      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
182    o pkg/mypackage:
183      - add example of read/write pickup for state-var ;
184      - add entry points to the main code for state-vars diags & write-pickup.
185    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
186      transitions for useExfYearlyFields
187      - add new subroutine that determines the file to read from for
188        use*YearlyFields = .TRUE. and .FALSE.
189      - add a verification experiment to global_with_exf that tests
190        useExfYearlyFields with USE_EXF_INTERPOLATION defined
191    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
192      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
193      subroutines (which could be generated from a template, because they are
194      almost identical), for now they are included in obcs_prescribe_read.F for
195      simplicity
196    o pkg/exf:
197      - add a little more diagnostic to exf_interp_read (in analogy to
198        mds_read_field, can be turned off with debugLevel < debugLevA=1)
199      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
200        ugly but fast by unrolling short inner loops, inserting a unroll=8
201        directive in routine lagran, and splitting a loop and making do while the
202        outermost loop (the latter requires the intoduction of index arrays)
203    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
204    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
205      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
206    o verification/seaice_obcs: updated for restart test and latest options
207    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
208      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
209      for now this is only available for the C-grid code and also within
210      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
211    
212    checkpoint59m
213    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
214      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
215    o gad_som : fix flux output (& diagnostics) to have same units as other  
216      advection scheme fluxes (was previously multiplied by deltaT).  
217    o added verification/seaice_obcs both to test seaice open boundaries
218      and to provide an example matlab scrpt for generating them
219    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
220    o pkg/salt_plume: clean up salt_plume_frac.F to
221      remove redundancy in PlumeMethod 1 and 4
222    o pkg/kpp: added saltplume diagnostics
223    o pkg/obcs and pkg/seaice:
224      - do not set uice and vice to zero when OB*icefile are unspecified
225      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
226      - moved seaice tracer obcs after call to seaice_growth
227    o pkg/salt_plume: added various options for salt plume depth
228      criterion and for vertical distribution of the salt
229    
230    checkpoint59l
231    o pkg/ptracers: new version of ptracers pickup:
232      read meta file and write only fields which are needed to restart.
233      ( same logic as main pickup file ; also using pickupStrictlyMatch )
234    o pkg/seaice:
235      - add timescale for melting due to warm mixed layer as a means of
236        setting SEAICE_availHeatFrac more conveniently
237      - add a CPP-flag/runtime parameter check for flooding algorithm
238      - reformulated availHeat in seaice_growth.F to be independent of AREA
239    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
240      unit changes
241    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
242    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
243      SX vector computer.
244    o pkg/seaice:
245      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
246        seaice forcing fields can now be read only through pkg/exf
247      - removed some unused halos
248    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
249    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
250      or U/VICE from U/VWIND before computing U/VSTRESS
251    
252    checkpoint59k
253    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
254      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
255    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
256      all experiments pass when compile with un-initialised var. checking option.
257    o added pkg/salt_plume
258    o script to test restart (for now, in MITgcm_contrib/jmc_script)
259    o pkg/seaice: new read/write pickup version.
260      read meta file and write only fields which are needed to restart.
261      ( same logic as main pickup file ; also using pickupStrictlyMatch )
262    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
263    o lab_sea.hb87: modify the domain & update output.hb87.txt :
264      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
265      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
266      process. Fixed here by closing the domain at the Northern boundary.
267    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
268    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
269      a set of consecutive levels in/from a 3-D array.
270    o pkg/ptracers:
271      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
272      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
273    
274    checkpoint59j
275    o in pkgs: dic, obcs, offline, rbcs:
276      standard way to compute coeff. for time interpolation between 2 time reccords
277      which retains full precision (& make results less dependent on compiler).
278      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
279    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
280      packages instead of reading ice cover and wind speed separately
281    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
282     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
283      to allow to compile customized code before the update)
284    o cleaning-up:
285      - fix CPP instruction syntax in pkg/obcs
286      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
287        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
288      - fix some threads issue in IO parts.
289    o pkg/dic:
290      - add tons of "_d 0" (--> much better testreports !)
291       and then update outputs of tutorial_global_oce_biogeo
292    o pkg/mom_fluxform:
293      add a special version of momentum advection intended to conserve momentum
294      next to a bathymetry step or a coastline edge. (default = off = #undef)
295    o new read/write pickup version:
296      - for now, only implemented for main (mdsio) pickup file.
297      - write out only what is needed to restart; merge pickup_nh , pickup_ph
298        and main pickup together.
299      - read meta file; read only what is needed to restart; stop if a field
300        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
301        if it make sense (even if the restart is not perfect).
302      - if no meta file, assume that pickup to read corresponds exactly to
303        a pickup that would currently be written.
304      - read pickup written in the old format (until checkpoint59i) if it
305        recognizes an old meta file (no field-list).
306      - add a meta file in exp. which starts from a pickup: 2 cases:
307        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
308         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
309        b) a meta file describing the content of the associated pickup file
310         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
311    o pkg/mdsio & pkg/rw:
312      - new routine to read a meta file ; new set of routine to read
313        Multiple-fields file (with meta file).
314    o added open boundary conditions capability for seaice
315        HSNOW, HSALT, UICE, and VICE
316    
317    checkpoint59i
318    o adjoint:
319      * fix multiDimAdvection adjoint
320        (partial recomputation problem by TAF for fVerT(:,:,kDown)
321        and comlev1 size definition (maxpass vs. max. number of tracers)
322      * verification/global_ocean.90x45x15 adjoint now tests
323        NLFS and multiDimAdvection using DST3 (=30)
324      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
325    o pkg/kpp: add "_d 0" to real constant (if missing);
326      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
327      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
328    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
329      for internal parameters related to restart process (formerly from PARAMS.h)
330      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
331    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
332      as argument. (only atm2d & obcs write_pickup have not yet been updated)
333    o pkg/monitor:
334      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
335      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
336      - account for deep Atmosphere factor and density factor (anelastic)
337    o added open boundary conditions capability for seaice HEFF and AREA
338    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
339      thermodynamics
340      - requires a little reorganization, which affects the testreport results
341        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
342        so that now the conservative form is tested
343      - add a few comments
344    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
345    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
346    o add new diagnostics to seaice: advective, diffusive fluxes (only for
347      multidim-advection, for scheme 2 they are not filled) and transports,
348      thermodynamic growth rates
349    o change units of EmPmR (inside the code, + within coupling interface)
350      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
351      Affects results @ truncation level (cg2d match) and update output of
352       experiments: lab_sea(6), global_ocean.90x40x15(10),
353      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
354      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
355      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
356      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
357    
358    checkpoint59h
359    o pkg/exf:
360      - improve vectorization by moving if-statement out of loops in
361        exf_mapfields, exf_radiation
362      - exf_bulkformulae.F: introduce 2D fields and vectorize code
363    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
364    o testreport:
365      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
366        monitor & update offline_exf_seaice exp. output.
367      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
368    o pkg/seaice:
369      - bug fix in the evp solver: boundary conditions were affected be
370        masking of zMax/zMin (changes results)
371      - minor bug fix in boundary conditions in seaice_calc_strainrates
372        (changes results for no_slip)
373      - seaice_lsr.F: make interpolation of eta dependent on boundaries
374      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
375      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
376        stress formulation and no-slip boundary conditions
377    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
378      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
379    o pkg/seaice: a first HSALT time stepping equation has been checked in
380    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
381      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
382      without requiring DO-IF statements
383    o pkg/thsice:
384      use continuous power-law function for partition of energy between lateral
385      melting/freezing and thinning/thickening ; old code using step function
386      still available with #undef THSICE_FRACEN_POWERLAW
387      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
388    o testreport: change AD testing : check against results/output_adm.txt
389      using same scripts as for forward test.
390    
391    checkpoint59g
392    o adjoint testing: in preparation for changing testreport:
393      - output format: cost and grad written on separated lines
394      - ad output results in directory "results" (instead of "results_ad")
395    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
396    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
397    o pkg/ecco: allow user defined cost function contributions
398    o testreport:
399      Allow to choose (per experiment) the list of tested output variables
400       and the main variable (used to issue a pass/FAIL ) ;
401      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
402      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
403      Also modify printing of summary:
404       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
405       b) echo the list of tested variables in the individual summary.txt of
406          each experiment.
407    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
408      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
409      (but still depend on the tile decompostion of the domain).
410    o pkg/seaice: change a discretization detail to make the B-grid code
411      "more symmetric". This change is likely to remove all "ridges/leads" that
412      where quasi-aligned with the grid in B-grid solutions. It may also be
413      the solution to the stress coupling issues with the B-grid.
414    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
415      remove .cvsignore from input dir. (since testreport no longer run here).
416    o pkg/thsice:
417     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
418     - fix reshaping of sea-ice just after advection:
419       melt all the ice only if ice-volume is too small.
420     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
421       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
422     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
423    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
424      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
425    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
426      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
427      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
428      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
429      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
430      -> update output.txt
431    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
432     this affects truncation error: -> update output.txt of exp:
433      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
434      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
435    
436    checkpoint59f
437    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
438    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
439      a bounded range (in forward mode)
440    o pkg/ecco, ctrl, autodiff and mom_common:
441     internal parameter controls, completements of implementations
442    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
443    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
444      (not seem any difference in testing results).
445    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
446       at face corners.
447    o pkg/generic_advdiff:
448     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
449      loop range indices for computing vertical advection tendency
450      and do the calculation in the interior only (no overlap) ;
451      for now, only implemented for SOM advection (to save CPU time).
452     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
453    o exch2 adjoint
454      First set of changes:
455      - add exch2 hand-written adjoint templates
456      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
457        This will require cleanup in pkg/autodiff/*.F
458        (changed routines currently kept separate in verif. code/)
459      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
460        that used to hide exch2 or cubed-sphere specific code
461        (commented via 'cph-exch2')
462    o pkg/seaice
463      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
464    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
465       output of global_ocean.cs32x15.thsice .
466    
467    checkpoint59e
468    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
469      for B-grid vector (not yet tested) and C-grid vector (<- only used
470      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
471    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
472      (#ifdef ALLOW_SALT_PLUME)
473    o gather_2d/scatter_2d: removed halo regions
474    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
475      scheme and the corresponding test case (under front_relax dir). For now,
476      only available with Skew-flux form and not yet tested in realistic set-up.
477      adjoint: store directives updated, but gradient checks deteriorated,
478      so maybe GM/Redi adjoint is now broken.
479    o seaice adjoint
480      * add AREA, HEFF, HSNOW as control variable
481        (should not change lab_sea results)
482      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
483    o pkg/seaice:
484      * added computation of saltFlux in seaice_growth;
485        For time being, sea ice salinity is assumed constant
486        contribution of snow flooding to freshening of sea ice is neglected.
487        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
488        defaults to 0.0 in order to maintain backward compatibility.
489        Typical values for SEAICE_salinity are 4 to 10 g/kg.
490      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
491      * added SEAICE_availHeatFrac, which specifies fraction of surface level
492        heat content used to melt or grow ice
493      * commented out cap of HICE: it helps keep ice thinner
494      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
495      * applied OBCS T/S mask to HEFFM sea ice mask
496    
497    checkpoint59d
498    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
499     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
500     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
501    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
502     and change default value of parameter "GM_Small_Number";
503     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
504       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
505       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
506    o pkg/ecco: cost function when applying pkg/smooth to controls
507    o pkg/ctrl: add forcingPrecond run time parameter
508    o pkg/seaice:
509     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
510     - fix bug in metric terms of u-equation in LSR solver (implicit part),
511       changes verification/lab_sea
512     - rearrange implicit part of u-equation in LSR solver to make it easier to
513       read, understand, and debug. This causes changes at the truncation level.
514     - fix (serious) bug in the boundary conditions (sign error in the implicit
515       part) of the LSR solver. Changes all LSR results.
516     - fixed problem with HSNOW initialization to avoid thick snow when AREA
517       is initilized with small values - does not change lab_sea results.
518     - added HsnowFile initialization capability
519    o pkg/smooth: addition to model/src and pkg/ctrl so allow
520     initialization of pkg/smooth and application to control vector
521    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
522    o dependencies: pkg/profiles requires pkg/cal
523    o pkg/profiles:
524     - added option ALLOW_PROFILES_GENERICGRID
525         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
526         that interpolation information (grid points and coefficients) is provided
527         within the netcdf input files.
528         -> sample matlab scripts can be found in MITgcm_contrib/gael
529         that allow you to prepare netcdf input files.
530     - also modified: cleaner include statements, cleaner error print statements,
531       cleaner stops when error, and more tests of the netcdf input files consistency.
532    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
533    o pkg/seaice:
534     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
535       requires a new routine: seaice_diagnostics_fill.F
536     - make sure that seaice does not move if not forced (pressure replacement
537       method, Hibler and Ip, 1995), changes results
538     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
539     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
540       It is turned off by default (=-1.), because it changes the results.
541     - make it possible to read AREA from a file, too.
542    
543    checkpoint59c
544    o add S/R and diagnostics for oceanic mixed-layer depth
545    o move GMRedi call after all vertical mixing schemes (including KPP)
546    o pkg/thsice:
547     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
548      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
549    o pkg/obcs:
550     - bug fix for balance code
551    o pkg/seaice:
552      - allow values of SEAICE_elasticParm > 1
553      - add new parameter SEAICE_evpTauRelax as an alternative
554        to SEAICE_elasticParm
555      - make lsr boundary conditions free slip (by default), changes result
556      - add code for no slip boundary conditions for lsr
557      - set minimum of zeta to zero (and not 4e8) (changes results)
558      - add a cap on AREA after advecting AREA if seaice_growth is not called
559    o change calculation of Visbeck K:
560      - no longer depend on tapering scheme; instead, compute slope (limited
561        by GM_maxSlope). this is equivalent to what was comuted before with
562        clipping or linear tappering.
563      - fix vertical averaging (wrong by 1/2 level)
564      - leave the old version (but will not be maintained) within
565        #ifdef OLD_VISBECK_CALC / #endif
566      - update output of exp. ideal_2D_oce
567    o change error catch in calc_r_star to improve vectorization
568    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
569      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
570    o adjoint:
571      Re-organized adjoint checkpointing according to Matt Mazloff
572      (but with modifs/completions/cleanups)
573      Storing is now bundled into large arrays to optimized I/O
574      (and second step in cleanup of the_main_loop)
575    
576    checkpoint59b
577    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
578      - export/import (between ocean & coupler) fields needed for ocean DIC.
579    o pkg/seaice:
580      - get rid of three more exchanges seaice_calc_viscosities (required
581        different loop boundaries in seaice_lsr and seaice_ocean_stress)
582      - bug fix in seaice_ocean_stress (update of lab_sea required)
583      - reduce loop boundaries to necessary minimum also in seaice_evp
584      - go back to the old way of computing deltaC/Z as the adjoint likes that
585        better
586    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
587      passive tracer to an Age Tracer) + update output.txt
588    o pkg/exf:
589      - implement A-grid / C-grid selection for wind-stress input files.
590      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
591      for now, in exf_bulk_largeyeager04.F only :
592      - change implementation for case where windspeed + 2. components wind-stress
593        are read-in. AND use rhoConstFresh to convert evap.
594    o pkg/seaice:
595      - use correct EXCH_UV for wind-forcing (on A-grid).
596      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
597        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
598    o pkg/exf:
599      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
600      EXF_INTERPOLATION:
601      - merge global_with_exf/code version of exf_interp_read.F
602        to the main code ;
603      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
604        reading the file ; Important: This options needs to be defined to recover
605        previous code.
606        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
607      - no longer loose real*8 precision along the way when using exf_iprec=64.
608    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
609      - change discretisation of evp-solver in order to avoid another exchange
610        (changes lab_sea) and clean up a little
611      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
612        help the adjoint (this also changes the results slightly)
613      - add a few "_d 0" where they had been missing in seaice_evp.F
614      - cleaning up: remove unused seaice_calc_rhs.F
615    o pkg/exf: some cleaning-up:
616      - change various "constants" into runtime parameters
617      - cleaned-up Large&Yeager04 routine which should eventually
618        replace exf_bulkformulae.F (changed names of S/R and CPP)
619        and merged various ALLOW_ATM_WIND options
620     only used with thsice pkg (in thsice_get_exf.F):
621      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
622        which are used when useStabilityFct_overIce=TRUE (= the default)
623      - change default values of ice & snow emissivity and scale downward LW
624        by ice & snow emissivity.
625    o pkg/thsice:
626     fix few little problems, in thsice_calc_thickn.F:
627      - growth vertically (and not laterally) if iceFrac == iceMaskMax
628      - melt only laterally if hIce < hThinIce (as the comments say)
629      and in thsice_extend.F:
630      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
631      - start to form ice as soon as the minimum ice-volume is reachable.
632     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
633      and cpl_aim+ocn
634    o pkg/kpp
635     - move computation of surface related input fields to KPP into a new
636       subroutine kpp_forcing_surf.F
637     - remove wrong (within bi,bj loops) EXCH calls.
638     - little cleaning (add argument myThid in last position, cvs header ...)
639     - for now, fix conservation problem by exchanging KPPviscAz (may not
640       be the best fix)
641    o pkg/seaice
642     - check for inconsistent evp parameter/cpp-flag combination
643     - remove leftover errIO flat for obsolete name list error handling
644    o OpenAD
645     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
646    
647    checkpoint59a
648    o pkg/seaice: some parameter clarifications and a little bit of clean up
649    o pkg/thsice: rename run-time parameters:
650       himin       -> hIceMin
651       himin0      -> hThinIce
652       hihig       -> hThickIce
653       i0          -> i0swFrac
654       transCoef   -> bMeltCoef
655       frac_energy -> fracMelting
656      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
657       with default values (for now) that do not change the results.
658      remove old version of thsice vars advection in pkg/seaice.
659    o in FFIELDS.h:
660      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
661      - make pLoad & sIceLoad always available (but still only used if
662         ATMOSPHERIC_LOADING is #define).
663    o pkg/kpp: replaced _KPP_RL with _RL
664    o bug fixes for vertical diffusivity computations when both KPP and
665        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
666        are no longer updating the vertical diffusivity array
667        (passed as argument) but are (re-) setting those arrays.
668    o pkg/seaice: fix bug in evp solver, while doing that
669      - change (improve?) discretization of stress computations for both
670        cgrid-lsr and evp solver
671      - add a new routine to compute strain rates
672      - the above changes lab_sea results
673      - add no slip conditions for evp solver (off by default), lsr-version
674        may follow
675      - fix exchange for shear at Z-points (does not change lab_sea)
676      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
677        (to force the user to pick a time step since there is not "safe" way
678        of choosing it)
679      - add principal stress diagnostics
680      - rearrange fields for evp a little to avoid having to call a: too many
681        exchanges and b: exchanges for stress trensor components which we do
682        not have.
683      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
684        of evp, complete rewrite for lsr case (latter is does not yet work
685        in all cases)
686    o pkg/kpp: add code to have mixing in shelf ice caverns
687      - add myThid to all kpp routines (long overdue)
688    
689    checkpoint59
690    o pkg/exf:
691      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
692        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
693      - move exf header files from lower_case.h to UPPER_CASE.h ;
694        add missing cvs Header & Name
695      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
696      - add namelist param. selectStressGridPosition, exf_monFreq
697      - retire many _CLIM routines, and remove data.exf_clim
698        + params moved to data.exf
699        + climsst, climsss now handled by exf_set_gen, i.e.
700          climss?period=0 refers to constant field,
701          climss?period=-12 to monthly forcing
702      - split up namelists in data.exf
703    o pkg/seaice:
704      - remove seaice_exch and seaice_exch_uv
705      - remove superfluous exchange of theta
706      - add myThid to seaice_budget_ocean/ice
707      - add new interface for atmospheric wind forcing (C-grid only)
708        + new routine
709        + two new field (taux, tauy for stress over ice)
710        + removed one global field (DAIRN) for C-grid case only
711    o pkg/thsise
712      - 2nd set of modifs for thsice adjoint in conjunction with exf
713    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
714    
715    checkpoint58y_post
716    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
717      vertical diffusivity, similar to that in MOM4; turned on using
718      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
719      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
720    o Added capability for 3D specification of background vertical diffusion
721      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
722      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
723      "data" file that contains the 3D vertical diffusivity coefficients.
724    o ice dynamics (pkg/seaice) with thsice thermodynamics:
725      - add code within pkg thsice to advect & diffuse sea-ice fields
726      similar to (and will replace) what has been added in  seaice_advdiff.F,
727      but: - conserving Mass, Heat & Salt.
728           - better when using non-linear advection scheme (not yet fully tested)
729           - can also be used in atmospheric set-up (for now, only the diffusion).
730    
731    checkpoint58x_post
732    o IO option for global-file compact format:
733      - add options when generating topology (utils/exch2/matlab-topology-generator)
734      - add I/O capability (pkg/mdsio).
735      - adapt utils/matlab/rdmds.m to read this format.
736      for now long-line format not yet supported by pkg/mdsio (& exch2).
737    o shelfice: add a few diagnostics
738    
739    checkpoint58w_post
740    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
741      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
742      (and replace horiVertRatio in NH code).
743      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
744                         and tutorial_plume_on_slope (sensitive to truncation)
745    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
746      directly to drive seaice model (C-grid only)
747    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
748     - reintroduce computation of wind from stress,
749     - compute tau (in exf_bulkformulae.F) from windstress averaged to
750       mass points to avoid tau = 0
751     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
752    o rdmnc.m: make it work with "global" files created with gluemnc
753    o rdmnc.m : some improvements in dealing with singleton dimension
754      (tested on all testreport mnc output files).
755    o genmake2: disable pkg/profiles if netcdf test fails.
756    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
757  o move call to cal_readparms up to make calendar parameters/variable available  o move call to cal_readparms up to make calendar parameters/variable available
758    to all packages    to all packages
759    

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