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revision 1.794 by mlosch, Thu Apr 19 15:49:24 2007 UTC revision 1.1003 by jmc, Mon Jun 16 14:08:55 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/generic_advdiff, os7mp: simplify and avoid division by zero.
8    o pkg/grdchk: Add gradient check to etan0 perturbations.
9    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
10    o pkg/autodiff: more flexibility in zeroadj.
11      model/src: modifying do_oceanic_phys.F accordingly.
12    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
13    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
14      special setup of gmredi for which the adjoint is stable
15      enough for parameter optimization.
16    o bridging the gap between eddy stress and GM.
17      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
18          along with a change in CPP option (now ALLOW_EDDYPSI).
19      -> when using GM w/ GM_AdvForm:
20          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
21          is applied either in the tracer Eq. or in momentum Eq.
22          depending on data.gmredi (intro. GM_InMomAsStress).
23      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
24      The key modifications are in model/src/taueddy_external_forcing.F
25      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
26    
27    checkpoint59r
28    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
29      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
30      fix option to read coriolis(@ cell-corner) from files with CS-grid.
31    o pkg/mnc: add some attributes to standard 1D-coordinate variables
32    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
33      mass points, when using mnc for output
34      - add runtime parameter (missing_value, missing_value_int) to override
35        default (which is the value of getcon('UNDEF'))
36    o pkg/mnc: prepare mnc for the actual use of missing values with the
37      diagnostics package: small fix in mnc_cw_readwrite.template and more
38      initialisation of never used fields
39      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
40      versions
41    o pkg/thsice/thsice_ini_vars.F added default initial values so that
42      thermodynamics sea ice solver does not blow up when some initial fields
43      are missing.
44    o move from external_forcing_surf.F to ini_forcing.F
45      the p-coord. hack consisting in using pLoad to set phi0surf ;
46      update output of tutorial_global_oce_in_p (affected @ truncation level).
47    o Freshen up a bit hs94.1x64x5, notably:
48      remove rotationPeriod and tRef=5*0. (adjoint only), and add
49      exactConserv=.TRUE.
50    o pkg/generic_advdiff:
51      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
52      applies to files where Temperature & Salinity 2nd Order moments are used.
53    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
54      this uses a dynamically allocated internal state data structure
55      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
56      and requires a fortran 90 compiler
57    
58    checkpoint59q
59    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
60       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
61    o Refresh tutorial_global_oce_biogeo, notably:
62      - change bathymetry (put back seamounts in ACC, use hFacs)
63      - change EOS (POLY3 --> JMD95Z)
64      - use Bryan-Lewis vertical diffusivity
65      - use multidimensional advection
66      - remove old virtual virtual in dic pkg, now done through ptracer pkg
67      - change a couple of parameters in dic pkg
68    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
69    o pkg/obcs: change default to OBCSfixTopo = .true.,
70      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
71      - replace "debugMode" with "debugLevel .GE. debLevB"
72    o implementation of TAF directives for gchem,cfc,dic
73    o remove "exp5" (replaced by tutorial_deep_convection).
74    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
75      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
76      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
77      --> changes results in exp4, seaice_obcs
78    o tutorial_deep_convection :
79      update the set-up and increase resolution and domain size ; start
80      from pseudo initial conditions = output at t=120mn in order to see
81      something happening when running testreport.
82    o pkg/seaice: add os7mp as an advection scheme
83                  add check for advection schemes
84                  add a flag for restoring T and S underneath sea ice
85    o pkg/my82: add netcdf-support and diagnostics
86    o thsice pkg:
87      - Now hsMax limits snow height by turning it into ice following
88        flooding scheme (and now conserving energy)
89      - Slight rewriting of the formula in thsice_calc_thick.F
90      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
91      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
92    
93    checkpoint59p
94    o gchem / dic / cfc :
95      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
96      - add new parameter files: "data.dic" & "data.cfc" ;
97      - various re-arrangement in initialisation & header file ;
98      - fix tutorial_global_oce_biogeo for multi-threaded test.
99    o pkg/dic: test for "pickup_dic" file when restarting ;
100      if no pickup-file, can restart with a re-initialised pH (same as it did
101      before) providing pickupStrictlyMatch is set to False.
102    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
103      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
104    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
105      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
106    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
107     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
108       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
109    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
110       scheme to use for vorticty-term ;
111     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
112       (with default selectVortScheme, return to original discretisation)
113     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
114    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
115    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
116      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
117      also fix diagnostics VISCAHW & VISCA4W.
118    
119    checkpoint59o
120    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
121    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
122      move a few statemens out the main loop into separate loops
123    o pkg/shelfice:
124      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
125        (kg/m^2/s), does not break tests, because in verification/isomip,
126        rhoConstFresh=rhoConst (by accident)
127      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
128      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
129        new file model/src/seawater.F, so that they are available for all pkgs.
130      - convert potential temperature into in-situ temperature. This changes the
131        isomip tests => update tests
132    o add a flag writePickupAtEnd (default=true) to be able to suppress
133      writing a pickup at the last timestep
134    o tools/mpack-1.6 :
135      - disable automake (not working) and autoconf (not needed).
136      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
137        also cleaner with much less compilation warnings.
138    o pkg/profiles:
139      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
140      (for "less than 32 characters name" compiler requirement)
141    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
142      conditions that have a different sampling frequency than S/T/U/V obcs
143    o pkg/diagnostics (stats-diags):
144      - fix global Min/Max in case 1 processor get only empty tiles
145    o genmake2: replace (4 times)
146         make genmake_tc_1.o >> genmake_warnings 2>&1
147      with
148         COMM="$CC $CFLAGS -c genmake_tc_1.c"
149         echo $COMM >> genmake_warnings
150         $COMM >> genmake_warnings 2>&1
151      to make genmake2 always see the value of CC as specified in the optfile.
152    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
153      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
154      - modify verification advect_cs test to test SOM-advection on CS-grid.
155    o pkg/ctrl:
156      - Rewrite of ctrl_map_ini_ecco.F,
157        introducing a generic routine (ctrl_map_ini_gen.F).
158      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
159    
160    checkpoint59n
161    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
162      number in dedicate array "hdiag":
163      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
164        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
165      - many small changes (integer format) for large number of diagnostics
166      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
167        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
168    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
169      usingSphericalGrid, this allows to define the rotated grid coordinates
170      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
171      geographical coordinates according to the inverse of the rotation defined
172      by the Euler angles, so that Coriolis parameter and online-interpolation by
173      exf works with the geographical coordinates on XC/YC/XG/YG.
174      Naturally, this feature does not work with all packages, so some
175      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
176      profiles), because there the coordinates are assumed to be regular
177      spherical grid coordinates.
178    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
179      - introduce isopycnal diffusion coefficient control.
180    o tools/adjoint_options:
181      - additional control vector components.
182    o pkg/mnc: have mnc create marginally meaning full coordinate variables
183      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
184    o pkg/mypackage:
185      - add example of read/write pickup for state-var ;
186      - add entry points to the main code for state-vars diags & write-pickup.
187    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
188      transitions for useExfYearlyFields
189      - add new subroutine that determines the file to read from for
190        use*YearlyFields = .TRUE. and .FALSE.
191      - add a verification experiment to global_with_exf that tests
192        useExfYearlyFields with USE_EXF_INTERPOLATION defined
193    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
194      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
195      subroutines (which could be generated from a template, because they are
196      almost identical), for now they are included in obcs_prescribe_read.F for
197      simplicity
198    o pkg/exf:
199      - add a little more diagnostic to exf_interp_read (in analogy to
200        mds_read_field, can be turned off with debugLevel < debugLevA=1)
201      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
202        ugly but fast by unrolling short inner loops, inserting a unroll=8
203        directive in routine lagran, and splitting a loop and making do while the
204        outermost loop (the latter requires the intoduction of index arrays)
205    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
206    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
207      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
208    o verification/seaice_obcs: updated for restart test and latest options
209    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
210      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
211      for now this is only available for the C-grid code and also within
212      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
213    
214    checkpoint59m
215    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
216      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
217    o gad_som : fix flux output (& diagnostics) to have same units as other  
218      advection scheme fluxes (was previously multiplied by deltaT).  
219    o added verification/seaice_obcs both to test seaice open boundaries
220      and to provide an example matlab scrpt for generating them
221    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
222    o pkg/salt_plume: clean up salt_plume_frac.F to
223      remove redundancy in PlumeMethod 1 and 4
224    o pkg/kpp: added saltplume diagnostics
225    o pkg/obcs and pkg/seaice:
226      - do not set uice and vice to zero when OB*icefile are unspecified
227      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
228      - moved seaice tracer obcs after call to seaice_growth
229    o pkg/salt_plume: added various options for salt plume depth
230      criterion and for vertical distribution of the salt
231    
232    checkpoint59l
233    o pkg/ptracers: new version of ptracers pickup:
234      read meta file and write only fields which are needed to restart.
235      ( same logic as main pickup file ; also using pickupStrictlyMatch )
236    o pkg/seaice:
237      - add timescale for melting due to warm mixed layer as a means of
238        setting SEAICE_availHeatFrac more conveniently
239      - add a CPP-flag/runtime parameter check for flooding algorithm
240      - reformulated availHeat in seaice_growth.F to be independent of AREA
241    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
242      unit changes
243    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
244    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
245      SX vector computer.
246    o pkg/seaice:
247      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
248        seaice forcing fields can now be read only through pkg/exf
249      - removed some unused halos
250    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
251    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
252      or U/VICE from U/VWIND before computing U/VSTRESS
253    
254    checkpoint59k
255    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
256      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
257    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
258      all experiments pass when compile with un-initialised var. checking option.
259    o added pkg/salt_plume
260    o script to test restart (for now, in MITgcm_contrib/jmc_script)
261    o pkg/seaice: new read/write pickup version.
262      read meta file and write only fields which are needed to restart.
263      ( same logic as main pickup file ; also using pickupStrictlyMatch )
264    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
265    o lab_sea.hb87: modify the domain & update output.hb87.txt :
266      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
267      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
268      process. Fixed here by closing the domain at the Northern boundary.
269    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
270    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
271      a set of consecutive levels in/from a 3-D array.
272    o pkg/ptracers:
273      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
274      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
275    
276    checkpoint59j
277    o in pkgs: dic, obcs, offline, rbcs:
278      standard way to compute coeff. for time interpolation between 2 time reccords
279      which retains full precision (& make results less dependent on compiler).
280      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
281    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
282      packages instead of reading ice cover and wind speed separately
283    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
284     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
285      to allow to compile customized code before the update)
286    o cleaning-up:
287      - fix CPP instruction syntax in pkg/obcs
288      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
289        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
290      - fix some threads issue in IO parts.
291    o pkg/dic:
292      - add tons of "_d 0" (--> much better testreports !)
293       and then update outputs of tutorial_global_oce_biogeo
294    o pkg/mom_fluxform:
295      add a special version of momentum advection intended to conserve momentum
296      next to a bathymetry step or a coastline edge. (default = off = #undef)
297    o new read/write pickup version:
298      - for now, only implemented for main (mdsio) pickup file.
299      - write out only what is needed to restart; merge pickup_nh , pickup_ph
300        and main pickup together.
301      - read meta file; read only what is needed to restart; stop if a field
302        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
303        if it make sense (even if the restart is not perfect).
304      - if no meta file, assume that pickup to read corresponds exactly to
305        a pickup that would currently be written.
306      - read pickup written in the old format (until checkpoint59i) if it
307        recognizes an old meta file (no field-list).
308      - add a meta file in exp. which starts from a pickup: 2 cases:
309        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
310         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
311        b) a meta file describing the content of the associated pickup file
312         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
313    o pkg/mdsio & pkg/rw:
314      - new routine to read a meta file ; new set of routine to read
315        Multiple-fields file (with meta file).
316    o added open boundary conditions capability for seaice
317        HSNOW, HSALT, UICE, and VICE
318    
319    checkpoint59i
320    o adjoint:
321      * fix multiDimAdvection adjoint
322        (partial recomputation problem by TAF for fVerT(:,:,kDown)
323        and comlev1 size definition (maxpass vs. max. number of tracers)
324      * verification/global_ocean.90x45x15 adjoint now tests
325        NLFS and multiDimAdvection using DST3 (=30)
326      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
327    o pkg/kpp: add "_d 0" to real constant (if missing);
328      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
329      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
330    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
331      for internal parameters related to restart process (formerly from PARAMS.h)
332      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
333    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
334      as argument. (only atm2d & obcs write_pickup have not yet been updated)
335    o pkg/monitor:
336      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
337      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
338      - account for deep Atmosphere factor and density factor (anelastic)
339    o added open boundary conditions capability for seaice HEFF and AREA
340    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
341      thermodynamics
342      - requires a little reorganization, which affects the testreport results
343        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
344        so that now the conservative form is tested
345      - add a few comments
346    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
347    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
348    o add new diagnostics to seaice: advective, diffusive fluxes (only for
349      multidim-advection, for scheme 2 they are not filled) and transports,
350      thermodynamic growth rates
351    o change units of EmPmR (inside the code, + within coupling interface)
352      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
353      Affects results @ truncation level (cg2d match) and update output of
354       experiments: lab_sea(6), global_ocean.90x40x15(10),
355      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
356      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
357      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
358      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
359    
360    checkpoint59h
361    o pkg/exf:
362      - improve vectorization by moving if-statement out of loops in
363        exf_mapfields, exf_radiation
364      - exf_bulkformulae.F: introduce 2D fields and vectorize code
365    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
366    o testreport:
367      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
368        monitor & update offline_exf_seaice exp. output.
369      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
370    o pkg/seaice:
371      - bug fix in the evp solver: boundary conditions were affected be
372        masking of zMax/zMin (changes results)
373      - minor bug fix in boundary conditions in seaice_calc_strainrates
374        (changes results for no_slip)
375      - seaice_lsr.F: make interpolation of eta dependent on boundaries
376      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
377      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
378        stress formulation and no-slip boundary conditions
379    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
380      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
381    o pkg/seaice: a first HSALT time stepping equation has been checked in
382    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
383      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
384      without requiring DO-IF statements
385    o pkg/thsice:
386      use continuous power-law function for partition of energy between lateral
387      melting/freezing and thinning/thickening ; old code using step function
388      still available with #undef THSICE_FRACEN_POWERLAW
389      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
390    o testreport: change AD testing : check against results/output_adm.txt
391      using same scripts as for forward test.
392    
393    checkpoint59g
394    o adjoint testing: in preparation for changing testreport:
395      - output format: cost and grad written on separated lines
396      - ad output results in directory "results" (instead of "results_ad")
397    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
398    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
399    o pkg/ecco: allow user defined cost function contributions
400    o testreport:
401      Allow to choose (per experiment) the list of tested output variables
402       and the main variable (used to issue a pass/FAIL ) ;
403      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
404      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
405      Also modify printing of summary:
406       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
407       b) echo the list of tested variables in the individual summary.txt of
408          each experiment.
409    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
410      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
411      (but still depend on the tile decompostion of the domain).
412    o pkg/seaice: change a discretization detail to make the B-grid code
413      "more symmetric". This change is likely to remove all "ridges/leads" that
414      where quasi-aligned with the grid in B-grid solutions. It may also be
415      the solution to the stress coupling issues with the B-grid.
416    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
417      remove .cvsignore from input dir. (since testreport no longer run here).
418    o pkg/thsice:
419     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
420     - fix reshaping of sea-ice just after advection:
421       melt all the ice only if ice-volume is too small.
422     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
423       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
424     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
425    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
426      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
427    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
428      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
429      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
430      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
431      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
432      -> update output.txt
433    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
434     this affects truncation error: -> update output.txt of exp:
435      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
436      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
437    
438    checkpoint59f
439    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
440    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
441      a bounded range (in forward mode)
442    o pkg/ecco, ctrl, autodiff and mom_common:
443     internal parameter controls, completements of implementations
444    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
445    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
446      (not seem any difference in testing results).
447    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
448       at face corners.
449    o pkg/generic_advdiff:
450     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
451      loop range indices for computing vertical advection tendency
452      and do the calculation in the interior only (no overlap) ;
453      for now, only implemented for SOM advection (to save CPU time).
454     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
455    o exch2 adjoint
456      First set of changes:
457      - add exch2 hand-written adjoint templates
458      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
459        This will require cleanup in pkg/autodiff/*.F
460        (changed routines currently kept separate in verif. code/)
461      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
462        that used to hide exch2 or cubed-sphere specific code
463        (commented via 'cph-exch2')
464    o pkg/seaice
465      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
466    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
467       output of global_ocean.cs32x15.thsice .
468    
469    checkpoint59e
470    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
471      for B-grid vector (not yet tested) and C-grid vector (<- only used
472      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
473    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
474      (#ifdef ALLOW_SALT_PLUME)
475    o gather_2d/scatter_2d: removed halo regions
476    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
477      scheme and the corresponding test case (under front_relax dir). For now,
478      only available with Skew-flux form and not yet tested in realistic set-up.
479      adjoint: store directives updated, but gradient checks deteriorated,
480      so maybe GM/Redi adjoint is now broken.
481    o seaice adjoint
482      * add AREA, HEFF, HSNOW as control variable
483        (should not change lab_sea results)
484      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
485    o pkg/seaice:
486      * added computation of saltFlux in seaice_growth;
487        For time being, sea ice salinity is assumed constant
488        contribution of snow flooding to freshening of sea ice is neglected.
489        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
490        defaults to 0.0 in order to maintain backward compatibility.
491        Typical values for SEAICE_salinity are 4 to 10 g/kg.
492      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
493      * added SEAICE_availHeatFrac, which specifies fraction of surface level
494        heat content used to melt or grow ice
495      * commented out cap of HICE: it helps keep ice thinner
496      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
497      * applied OBCS T/S mask to HEFFM sea ice mask
498    
499    checkpoint59d
500    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
501     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
502     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
503    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
504     and change default value of parameter "GM_Small_Number";
505     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
506       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
507       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
508    o pkg/ecco: cost function when applying pkg/smooth to controls
509    o pkg/ctrl: add forcingPrecond run time parameter
510    o pkg/seaice:
511     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
512     - fix bug in metric terms of u-equation in LSR solver (implicit part),
513       changes verification/lab_sea
514     - rearrange implicit part of u-equation in LSR solver to make it easier to
515       read, understand, and debug. This causes changes at the truncation level.
516     - fix (serious) bug in the boundary conditions (sign error in the implicit
517       part) of the LSR solver. Changes all LSR results.
518     - fixed problem with HSNOW initialization to avoid thick snow when AREA
519       is initilized with small values - does not change lab_sea results.
520     - added HsnowFile initialization capability
521    o pkg/smooth: addition to model/src and pkg/ctrl so allow
522     initialization of pkg/smooth and application to control vector
523    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
524    o dependencies: pkg/profiles requires pkg/cal
525    o pkg/profiles:
526     - added option ALLOW_PROFILES_GENERICGRID
527         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
528         that interpolation information (grid points and coefficients) is provided
529         within the netcdf input files.
530         -> sample matlab scripts can be found in MITgcm_contrib/gael
531         that allow you to prepare netcdf input files.
532     - also modified: cleaner include statements, cleaner error print statements,
533       cleaner stops when error, and more tests of the netcdf input files consistency.
534    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
535    o pkg/seaice:
536     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
537       requires a new routine: seaice_diagnostics_fill.F
538     - make sure that seaice does not move if not forced (pressure replacement
539       method, Hibler and Ip, 1995), changes results
540     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
541     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
542       It is turned off by default (=-1.), because it changes the results.
543     - make it possible to read AREA from a file, too.
544    
545    checkpoint59c
546    o add S/R and diagnostics for oceanic mixed-layer depth
547    o move GMRedi call after all vertical mixing schemes (including KPP)
548    o pkg/thsice:
549     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
550      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
551    o pkg/obcs:
552     - bug fix for balance code
553    o pkg/seaice:
554      - allow values of SEAICE_elasticParm > 1
555      - add new parameter SEAICE_evpTauRelax as an alternative
556        to SEAICE_elasticParm
557      - make lsr boundary conditions free slip (by default), changes result
558      - add code for no slip boundary conditions for lsr
559      - set minimum of zeta to zero (and not 4e8) (changes results)
560      - add a cap on AREA after advecting AREA if seaice_growth is not called
561    o change calculation of Visbeck K:
562      - no longer depend on tapering scheme; instead, compute slope (limited
563        by GM_maxSlope). this is equivalent to what was comuted before with
564        clipping or linear tappering.
565      - fix vertical averaging (wrong by 1/2 level)
566      - leave the old version (but will not be maintained) within
567        #ifdef OLD_VISBECK_CALC / #endif
568      - update output of exp. ideal_2D_oce
569    o change error catch in calc_r_star to improve vectorization
570    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
571      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
572    o adjoint:
573      Re-organized adjoint checkpointing according to Matt Mazloff
574      (but with modifs/completions/cleanups)
575      Storing is now bundled into large arrays to optimized I/O
576      (and second step in cleanup of the_main_loop)
577    
578    checkpoint59b
579    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
580      - export/import (between ocean & coupler) fields needed for ocean DIC.
581    o pkg/seaice:
582      - get rid of three more exchanges seaice_calc_viscosities (required
583        different loop boundaries in seaice_lsr and seaice_ocean_stress)
584      - bug fix in seaice_ocean_stress (update of lab_sea required)
585      - reduce loop boundaries to necessary minimum also in seaice_evp
586      - go back to the old way of computing deltaC/Z as the adjoint likes that
587        better
588    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
589      passive tracer to an Age Tracer) + update output.txt
590    o pkg/exf:
591      - implement A-grid / C-grid selection for wind-stress input files.
592      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
593      for now, in exf_bulk_largeyeager04.F only :
594      - change implementation for case where windspeed + 2. components wind-stress
595        are read-in. AND use rhoConstFresh to convert evap.
596    o pkg/seaice:
597      - use correct EXCH_UV for wind-forcing (on A-grid).
598      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
599        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
600    o pkg/exf:
601      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
602      EXF_INTERPOLATION:
603      - merge global_with_exf/code version of exf_interp_read.F
604        to the main code ;
605      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
606        reading the file ; Important: This options needs to be defined to recover
607        previous code.
608        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
609      - no longer loose real*8 precision along the way when using exf_iprec=64.
610    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
611      - change discretisation of evp-solver in order to avoid another exchange
612        (changes lab_sea) and clean up a little
613      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
614        help the adjoint (this also changes the results slightly)
615      - add a few "_d 0" where they had been missing in seaice_evp.F
616      - cleaning up: remove unused seaice_calc_rhs.F
617    o pkg/exf: some cleaning-up:
618      - change various "constants" into runtime parameters
619      - cleaned-up Large&Yeager04 routine which should eventually
620        replace exf_bulkformulae.F (changed names of S/R and CPP)
621        and merged various ALLOW_ATM_WIND options
622     only used with thsice pkg (in thsice_get_exf.F):
623      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
624        which are used when useStabilityFct_overIce=TRUE (= the default)
625      - change default values of ice & snow emissivity and scale downward LW
626        by ice & snow emissivity.
627    o pkg/thsice:
628     fix few little problems, in thsice_calc_thickn.F:
629      - growth vertically (and not laterally) if iceFrac == iceMaskMax
630      - melt only laterally if hIce < hThinIce (as the comments say)
631      and in thsice_extend.F:
632      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
633      - start to form ice as soon as the minimum ice-volume is reachable.
634     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
635      and cpl_aim+ocn
636    o pkg/kpp
637     - move computation of surface related input fields to KPP into a new
638       subroutine kpp_forcing_surf.F
639     - remove wrong (within bi,bj loops) EXCH calls.
640     - little cleaning (add argument myThid in last position, cvs header ...)
641     - for now, fix conservation problem by exchanging KPPviscAz (may not
642       be the best fix)
643    o pkg/seaice
644     - check for inconsistent evp parameter/cpp-flag combination
645     - remove leftover errIO flat for obsolete name list error handling
646    o OpenAD
647     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
648    
649    checkpoint59a
650    o pkg/seaice: some parameter clarifications and a little bit of clean up
651    o pkg/thsice: rename run-time parameters:
652       himin       -> hIceMin
653       himin0      -> hThinIce
654       hihig       -> hThickIce
655       i0          -> i0swFrac
656       transCoef   -> bMeltCoef
657       frac_energy -> fracMelting
658      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
659       with default values (for now) that do not change the results.
660      remove old version of thsice vars advection in pkg/seaice.
661    o in FFIELDS.h:
662      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
663      - make pLoad & sIceLoad always available (but still only used if
664         ATMOSPHERIC_LOADING is #define).
665    o pkg/kpp: replaced _KPP_RL with _RL
666    o bug fixes for vertical diffusivity computations when both KPP and
667        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
668        are no longer updating the vertical diffusivity array
669        (passed as argument) but are (re-) setting those arrays.
670    o pkg/seaice: fix bug in evp solver, while doing that
671      - change (improve?) discretization of stress computations for both
672        cgrid-lsr and evp solver
673      - add a new routine to compute strain rates
674      - the above changes lab_sea results
675      - add no slip conditions for evp solver (off by default), lsr-version
676        may follow
677      - fix exchange for shear at Z-points (does not change lab_sea)
678      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
679        (to force the user to pick a time step since there is not "safe" way
680        of choosing it)
681      - add principal stress diagnostics
682      - rearrange fields for evp a little to avoid having to call a: too many
683        exchanges and b: exchanges for stress trensor components which we do
684        not have.
685      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
686        of evp, complete rewrite for lsr case (latter is does not yet work
687        in all cases)
688  o pkg/kpp: add code to have mixing in shelf ice caverns  o pkg/kpp: add code to have mixing in shelf ice caverns
689      - add myThid to all kpp routines (long overdue)
690    
691  checkpoint59  checkpoint59
692  o pkg/exf:  o pkg/exf:

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