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revision 1.636 by jmc, Mon Mar 20 21:54:37 2006 UTC revision 1.1001 by gforget, Wed Jun 11 18:56:14 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
8    o pkg/autodiff: more flexibility in zeroadj.
9      model/src: modifying do_oceanic_phys.F accordingly.
10    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
11    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
12      special setup of gmredi for which the adjoint is stable
13      enough for parameter optimization.
14    o bridging the gap between eddy stress and GM.
15      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
16          along with a change in CPP option (now ALLOW_EDDYPSI).
17      -> when using GM w/ GM_AdvForm:
18          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
19          is applied either in the tracer Eq. or in momentum Eq.
20          depending on data.gmredi (intro. GM_InMomAsStress).
21      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
22      The key modifications are in model/src/taueddy_external_forcing.F
23      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
24    checkpoint59r
25    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
26      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
27      fix option to read coriolis(@ cell-corner) from files with CS-grid.
28    o pkg/mnc: add some attributes to standard 1D-coordinate variables
29    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
30      mass points, when using mnc for output
31      - add runtime parameter (missing_value, missing_value_int) to override
32        default (which is the value of getcon('UNDEF'))
33    o pkg/mnc: prepare mnc for the actual use of missing values with the
34      diagnostics package: small fix in mnc_cw_readwrite.template and more
35      initialisation of never used fields
36      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
37      versions
38    o pkg/thsice/thsice_ini_vars.F added default initial values so that
39      thermodynamics sea ice solver does not blow up when some initial fields
40      are missing.
41    o move from external_forcing_surf.F to ini_forcing.F
42      the p-coord. hack consisting in using pLoad to set phi0surf ;
43      update output of tutorial_global_oce_in_p (affected @ truncation level).
44    o Freshen up a bit hs94.1x64x5, notably:
45      remove rotationPeriod and tRef=5*0. (adjoint only), and add
46      exactConserv=.TRUE.
47    o pkg/generic_advdiff:
48      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
49      applies to files where Temperature & Salinity 2nd Order moments are used.
50    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
51      this uses a dynamically allocated internal state data structure
52      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
53      and requires a fortran 90 compiler
54    
55    checkpoint59q
56    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
57       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
58    o Refresh tutorial_global_oce_biogeo, notably:
59      - change bathymetry (put back seamounts in ACC, use hFacs)
60      - change EOS (POLY3 --> JMD95Z)
61      - use Bryan-Lewis vertical diffusivity
62      - use multidimensional advection
63      - remove old virtual virtual in dic pkg, now done through ptracer pkg
64      - change a couple of parameters in dic pkg
65    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
66    o pkg/obcs: change default to OBCSfixTopo = .true.,
67      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
68      - replace "debugMode" with "debugLevel .GE. debLevB"
69    o implementation of TAF directives for gchem,cfc,dic
70    o remove "exp5" (replaced by tutorial_deep_convection).
71    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
72      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
73      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
74      --> changes results in exp4, seaice_obcs
75    o tutorial_deep_convection :
76      update the set-up and increase resolution and domain size ; start
77      from pseudo initial conditions = output at t=120mn in order to see
78      something happening when running testreport.
79    o pkg/seaice: add os7mp as an advection scheme
80                  add check for advection schemes
81                  add a flag for restoring T and S underneath sea ice
82    o pkg/my82: add netcdf-support and diagnostics
83    o thsice pkg:
84      - Now hsMax limits snow height by turning it into ice following
85        flooding scheme (and now conserving energy)
86      - Slight rewriting of the formula in thsice_calc_thick.F
87      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
88      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
89    
90    checkpoint59p
91    o gchem / dic / cfc :
92      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
93      - add new parameter files: "data.dic" & "data.cfc" ;
94      - various re-arrangement in initialisation & header file ;
95      - fix tutorial_global_oce_biogeo for multi-threaded test.
96    o pkg/dic: test for "pickup_dic" file when restarting ;
97      if no pickup-file, can restart with a re-initialised pH (same as it did
98      before) providing pickupStrictlyMatch is set to False.
99    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
100      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
101    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
102      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
103    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
104     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
105       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
106    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
107       scheme to use for vorticty-term ;
108     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
109       (with default selectVortScheme, return to original discretisation)
110     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
111    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
112    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
113      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
114      also fix diagnostics VISCAHW & VISCA4W.
115    
116    checkpoint59o
117    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
118    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
119      move a few statemens out the main loop into separate loops
120    o pkg/shelfice:
121      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
122        (kg/m^2/s), does not break tests, because in verification/isomip,
123        rhoConstFresh=rhoConst (by accident)
124      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
125      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
126        new file model/src/seawater.F, so that they are available for all pkgs.
127      - convert potential temperature into in-situ temperature. This changes the
128        isomip tests => update tests
129    o add a flag writePickupAtEnd (default=true) to be able to suppress
130      writing a pickup at the last timestep
131    o tools/mpack-1.6 :
132      - disable automake (not working) and autoconf (not needed).
133      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
134        also cleaner with much less compilation warnings.
135    o pkg/profiles:
136      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
137      (for "less than 32 characters name" compiler requirement)
138    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
139      conditions that have a different sampling frequency than S/T/U/V obcs
140    o pkg/diagnostics (stats-diags):
141      - fix global Min/Max in case 1 processor get only empty tiles
142    o genmake2: replace (4 times)
143         make genmake_tc_1.o >> genmake_warnings 2>&1
144      with
145         COMM="$CC $CFLAGS -c genmake_tc_1.c"
146         echo $COMM >> genmake_warnings
147         $COMM >> genmake_warnings 2>&1
148      to make genmake2 always see the value of CC as specified in the optfile.
149    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
150      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
151      - modify verification advect_cs test to test SOM-advection on CS-grid.
152    o pkg/ctrl:
153      - Rewrite of ctrl_map_ini_ecco.F,
154        introducing a generic routine (ctrl_map_ini_gen.F).
155      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
156    
157    checkpoint59n
158    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
159      number in dedicate array "hdiag":
160      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
161        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
162      - many small changes (integer format) for large number of diagnostics
163      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
164        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
165    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
166      usingSphericalGrid, this allows to define the rotated grid coordinates
167      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
168      geographical coordinates according to the inverse of the rotation defined
169      by the Euler angles, so that Coriolis parameter and online-interpolation by
170      exf works with the geographical coordinates on XC/YC/XG/YG.
171      Naturally, this feature does not work with all packages, so some
172      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
173      profiles), because there the coordinates are assumed to be regular
174      spherical grid coordinates.
175    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
176      - introduce isopycnal diffusion coefficient control.
177    o tools/adjoint_options:
178      - additional control vector components.
179    o pkg/mnc: have mnc create marginally meaning full coordinate variables
180      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
181    o pkg/mypackage:
182      - add example of read/write pickup for state-var ;
183      - add entry points to the main code for state-vars diags & write-pickup.
184    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
185      transitions for useExfYearlyFields
186      - add new subroutine that determines the file to read from for
187        use*YearlyFields = .TRUE. and .FALSE.
188      - add a verification experiment to global_with_exf that tests
189        useExfYearlyFields with USE_EXF_INTERPOLATION defined
190    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
191      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
192      subroutines (which could be generated from a template, because they are
193      almost identical), for now they are included in obcs_prescribe_read.F for
194      simplicity
195    o pkg/exf:
196      - add a little more diagnostic to exf_interp_read (in analogy to
197        mds_read_field, can be turned off with debugLevel < debugLevA=1)
198      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
199        ugly but fast by unrolling short inner loops, inserting a unroll=8
200        directive in routine lagran, and splitting a loop and making do while the
201        outermost loop (the latter requires the intoduction of index arrays)
202    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
203    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
204      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
205    o verification/seaice_obcs: updated for restart test and latest options
206    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
207      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
208      for now this is only available for the C-grid code and also within
209      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
210    
211    checkpoint59m
212    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
213      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
214    o gad_som : fix flux output (& diagnostics) to have same units as other  
215      advection scheme fluxes (was previously multiplied by deltaT).  
216    o added verification/seaice_obcs both to test seaice open boundaries
217      and to provide an example matlab scrpt for generating them
218    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
219    o pkg/salt_plume: clean up salt_plume_frac.F to
220      remove redundancy in PlumeMethod 1 and 4
221    o pkg/kpp: added saltplume diagnostics
222    o pkg/obcs and pkg/seaice:
223      - do not set uice and vice to zero when OB*icefile are unspecified
224      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
225      - moved seaice tracer obcs after call to seaice_growth
226    o pkg/salt_plume: added various options for salt plume depth
227      criterion and for vertical distribution of the salt
228    
229    checkpoint59l
230    o pkg/ptracers: new version of ptracers pickup:
231      read meta file and write only fields which are needed to restart.
232      ( same logic as main pickup file ; also using pickupStrictlyMatch )
233    o pkg/seaice:
234      - add timescale for melting due to warm mixed layer as a means of
235        setting SEAICE_availHeatFrac more conveniently
236      - add a CPP-flag/runtime parameter check for flooding algorithm
237      - reformulated availHeat in seaice_growth.F to be independent of AREA
238    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
239      unit changes
240    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
241    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
242      SX vector computer.
243    o pkg/seaice:
244      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
245        seaice forcing fields can now be read only through pkg/exf
246      - removed some unused halos
247    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
248    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
249      or U/VICE from U/VWIND before computing U/VSTRESS
250    
251    checkpoint59k
252    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
253      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
254    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
255      all experiments pass when compile with un-initialised var. checking option.
256    o added pkg/salt_plume
257    o script to test restart (for now, in MITgcm_contrib/jmc_script)
258    o pkg/seaice: new read/write pickup version.
259      read meta file and write only fields which are needed to restart.
260      ( same logic as main pickup file ; also using pickupStrictlyMatch )
261    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
262    o lab_sea.hb87: modify the domain & update output.hb87.txt :
263      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
264      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
265      process. Fixed here by closing the domain at the Northern boundary.
266    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
267    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
268      a set of consecutive levels in/from a 3-D array.
269    o pkg/ptracers:
270      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
271      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
272    
273    checkpoint59j
274    o in pkgs: dic, obcs, offline, rbcs:
275      standard way to compute coeff. for time interpolation between 2 time reccords
276      which retains full precision (& make results less dependent on compiler).
277      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
278    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
279      packages instead of reading ice cover and wind speed separately
280    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
281     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
282      to allow to compile customized code before the update)
283    o cleaning-up:
284      - fix CPP instruction syntax in pkg/obcs
285      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
286        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
287      - fix some threads issue in IO parts.
288    o pkg/dic:
289      - add tons of "_d 0" (--> much better testreports !)
290       and then update outputs of tutorial_global_oce_biogeo
291    o pkg/mom_fluxform:
292      add a special version of momentum advection intended to conserve momentum
293      next to a bathymetry step or a coastline edge. (default = off = #undef)
294    o new read/write pickup version:
295      - for now, only implemented for main (mdsio) pickup file.
296      - write out only what is needed to restart; merge pickup_nh , pickup_ph
297        and main pickup together.
298      - read meta file; read only what is needed to restart; stop if a field
299        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
300        if it make sense (even if the restart is not perfect).
301      - if no meta file, assume that pickup to read corresponds exactly to
302        a pickup that would currently be written.
303      - read pickup written in the old format (until checkpoint59i) if it
304        recognizes an old meta file (no field-list).
305      - add a meta file in exp. which starts from a pickup: 2 cases:
306        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
307         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
308        b) a meta file describing the content of the associated pickup file
309         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
310    o pkg/mdsio & pkg/rw:
311      - new routine to read a meta file ; new set of routine to read
312        Multiple-fields file (with meta file).
313    o added open boundary conditions capability for seaice
314        HSNOW, HSALT, UICE, and VICE
315    
316    checkpoint59i
317    o adjoint:
318      * fix multiDimAdvection adjoint
319        (partial recomputation problem by TAF for fVerT(:,:,kDown)
320        and comlev1 size definition (maxpass vs. max. number of tracers)
321      * verification/global_ocean.90x45x15 adjoint now tests
322        NLFS and multiDimAdvection using DST3 (=30)
323      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
324    o pkg/kpp: add "_d 0" to real constant (if missing);
325      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
326      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
327    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
328      for internal parameters related to restart process (formerly from PARAMS.h)
329      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
330    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
331      as argument. (only atm2d & obcs write_pickup have not yet been updated)
332    o pkg/monitor:
333      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
334      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
335      - account for deep Atmosphere factor and density factor (anelastic)
336    o added open boundary conditions capability for seaice HEFF and AREA
337    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
338      thermodynamics
339      - requires a little reorganization, which affects the testreport results
340        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
341        so that now the conservative form is tested
342      - add a few comments
343    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
344    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
345    o add new diagnostics to seaice: advective, diffusive fluxes (only for
346      multidim-advection, for scheme 2 they are not filled) and transports,
347      thermodynamic growth rates
348    o change units of EmPmR (inside the code, + within coupling interface)
349      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
350      Affects results @ truncation level (cg2d match) and update output of
351       experiments: lab_sea(6), global_ocean.90x40x15(10),
352      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
353      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
354      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
355      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
356    
357    checkpoint59h
358    o pkg/exf:
359      - improve vectorization by moving if-statement out of loops in
360        exf_mapfields, exf_radiation
361      - exf_bulkformulae.F: introduce 2D fields and vectorize code
362    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
363    o testreport:
364      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
365        monitor & update offline_exf_seaice exp. output.
366      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
367    o pkg/seaice:
368      - bug fix in the evp solver: boundary conditions were affected be
369        masking of zMax/zMin (changes results)
370      - minor bug fix in boundary conditions in seaice_calc_strainrates
371        (changes results for no_slip)
372      - seaice_lsr.F: make interpolation of eta dependent on boundaries
373      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
374      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
375        stress formulation and no-slip boundary conditions
376    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
377      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
378    o pkg/seaice: a first HSALT time stepping equation has been checked in
379    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
380      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
381      without requiring DO-IF statements
382    o pkg/thsice:
383      use continuous power-law function for partition of energy between lateral
384      melting/freezing and thinning/thickening ; old code using step function
385      still available with #undef THSICE_FRACEN_POWERLAW
386      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
387    o testreport: change AD testing : check against results/output_adm.txt
388      using same scripts as for forward test.
389    
390    checkpoint59g
391    o adjoint testing: in preparation for changing testreport:
392      - output format: cost and grad written on separated lines
393      - ad output results in directory "results" (instead of "results_ad")
394    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
395    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
396    o pkg/ecco: allow user defined cost function contributions
397    o testreport:
398      Allow to choose (per experiment) the list of tested output variables
399       and the main variable (used to issue a pass/FAIL ) ;
400      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
401      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
402      Also modify printing of summary:
403       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
404       b) echo the list of tested variables in the individual summary.txt of
405          each experiment.
406    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
407      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
408      (but still depend on the tile decompostion of the domain).
409    o pkg/seaice: change a discretization detail to make the B-grid code
410      "more symmetric". This change is likely to remove all "ridges/leads" that
411      where quasi-aligned with the grid in B-grid solutions. It may also be
412      the solution to the stress coupling issues with the B-grid.
413    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
414      remove .cvsignore from input dir. (since testreport no longer run here).
415    o pkg/thsice:
416     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
417     - fix reshaping of sea-ice just after advection:
418       melt all the ice only if ice-volume is too small.
419     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
420       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
421     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
422    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
423      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
424    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
425      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
426      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
427      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
428      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
429      -> update output.txt
430    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
431     this affects truncation error: -> update output.txt of exp:
432      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
433      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
434    
435    checkpoint59f
436    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
437    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
438      a bounded range (in forward mode)
439    o pkg/ecco, ctrl, autodiff and mom_common:
440     internal parameter controls, completements of implementations
441    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
442    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
443      (not seem any difference in testing results).
444    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
445       at face corners.
446    o pkg/generic_advdiff:
447     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
448      loop range indices for computing vertical advection tendency
449      and do the calculation in the interior only (no overlap) ;
450      for now, only implemented for SOM advection (to save CPU time).
451     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
452    o exch2 adjoint
453      First set of changes:
454      - add exch2 hand-written adjoint templates
455      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
456        This will require cleanup in pkg/autodiff/*.F
457        (changed routines currently kept separate in verif. code/)
458      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
459        that used to hide exch2 or cubed-sphere specific code
460        (commented via 'cph-exch2')
461    o pkg/seaice
462      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
463    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
464       output of global_ocean.cs32x15.thsice .
465    
466    checkpoint59e
467    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
468      for B-grid vector (not yet tested) and C-grid vector (<- only used
469      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
470    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
471      (#ifdef ALLOW_SALT_PLUME)
472    o gather_2d/scatter_2d: removed halo regions
473    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
474      scheme and the corresponding test case (under front_relax dir). For now,
475      only available with Skew-flux form and not yet tested in realistic set-up.
476      adjoint: store directives updated, but gradient checks deteriorated,
477      so maybe GM/Redi adjoint is now broken.
478    o seaice adjoint
479      * add AREA, HEFF, HSNOW as control variable
480        (should not change lab_sea results)
481      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
482    o pkg/seaice:
483      * added computation of saltFlux in seaice_growth;
484        For time being, sea ice salinity is assumed constant
485        contribution of snow flooding to freshening of sea ice is neglected.
486        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
487        defaults to 0.0 in order to maintain backward compatibility.
488        Typical values for SEAICE_salinity are 4 to 10 g/kg.
489      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
490      * added SEAICE_availHeatFrac, which specifies fraction of surface level
491        heat content used to melt or grow ice
492      * commented out cap of HICE: it helps keep ice thinner
493      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
494      * applied OBCS T/S mask to HEFFM sea ice mask
495    
496    checkpoint59d
497    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
498     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
499     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
500    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
501     and change default value of parameter "GM_Small_Number";
502     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
503       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
504       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
505    o pkg/ecco: cost function when applying pkg/smooth to controls
506    o pkg/ctrl: add forcingPrecond run time parameter
507    o pkg/seaice:
508     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
509     - fix bug in metric terms of u-equation in LSR solver (implicit part),
510       changes verification/lab_sea
511     - rearrange implicit part of u-equation in LSR solver to make it easier to
512       read, understand, and debug. This causes changes at the truncation level.
513     - fix (serious) bug in the boundary conditions (sign error in the implicit
514       part) of the LSR solver. Changes all LSR results.
515     - fixed problem with HSNOW initialization to avoid thick snow when AREA
516       is initilized with small values - does not change lab_sea results.
517     - added HsnowFile initialization capability
518    o pkg/smooth: addition to model/src and pkg/ctrl so allow
519     initialization of pkg/smooth and application to control vector
520    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
521    o dependencies: pkg/profiles requires pkg/cal
522    o pkg/profiles:
523     - added option ALLOW_PROFILES_GENERICGRID
524         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
525         that interpolation information (grid points and coefficients) is provided
526         within the netcdf input files.
527         -> sample matlab scripts can be found in MITgcm_contrib/gael
528         that allow you to prepare netcdf input files.
529     - also modified: cleaner include statements, cleaner error print statements,
530       cleaner stops when error, and more tests of the netcdf input files consistency.
531    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
532    o pkg/seaice:
533     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
534       requires a new routine: seaice_diagnostics_fill.F
535     - make sure that seaice does not move if not forced (pressure replacement
536       method, Hibler and Ip, 1995), changes results
537     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
538     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
539       It is turned off by default (=-1.), because it changes the results.
540     - make it possible to read AREA from a file, too.
541    
542    checkpoint59c
543    o add S/R and diagnostics for oceanic mixed-layer depth
544    o move GMRedi call after all vertical mixing schemes (including KPP)
545    o pkg/thsice:
546     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
547      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
548    o pkg/obcs:
549     - bug fix for balance code
550    o pkg/seaice:
551      - allow values of SEAICE_elasticParm > 1
552      - add new parameter SEAICE_evpTauRelax as an alternative
553        to SEAICE_elasticParm
554      - make lsr boundary conditions free slip (by default), changes result
555      - add code for no slip boundary conditions for lsr
556      - set minimum of zeta to zero (and not 4e8) (changes results)
557      - add a cap on AREA after advecting AREA if seaice_growth is not called
558    o change calculation of Visbeck K:
559      - no longer depend on tapering scheme; instead, compute slope (limited
560        by GM_maxSlope). this is equivalent to what was comuted before with
561        clipping or linear tappering.
562      - fix vertical averaging (wrong by 1/2 level)
563      - leave the old version (but will not be maintained) within
564        #ifdef OLD_VISBECK_CALC / #endif
565      - update output of exp. ideal_2D_oce
566    o change error catch in calc_r_star to improve vectorization
567    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
568      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
569    o adjoint:
570      Re-organized adjoint checkpointing according to Matt Mazloff
571      (but with modifs/completions/cleanups)
572      Storing is now bundled into large arrays to optimized I/O
573      (and second step in cleanup of the_main_loop)
574    
575    checkpoint59b
576    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
577      - export/import (between ocean & coupler) fields needed for ocean DIC.
578    o pkg/seaice:
579      - get rid of three more exchanges seaice_calc_viscosities (required
580        different loop boundaries in seaice_lsr and seaice_ocean_stress)
581      - bug fix in seaice_ocean_stress (update of lab_sea required)
582      - reduce loop boundaries to necessary minimum also in seaice_evp
583      - go back to the old way of computing deltaC/Z as the adjoint likes that
584        better
585    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
586      passive tracer to an Age Tracer) + update output.txt
587    o pkg/exf:
588      - implement A-grid / C-grid selection for wind-stress input files.
589      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
590      for now, in exf_bulk_largeyeager04.F only :
591      - change implementation for case where windspeed + 2. components wind-stress
592        are read-in. AND use rhoConstFresh to convert evap.
593    o pkg/seaice:
594      - use correct EXCH_UV for wind-forcing (on A-grid).
595      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
596        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
597    o pkg/exf:
598      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
599      EXF_INTERPOLATION:
600      - merge global_with_exf/code version of exf_interp_read.F
601        to the main code ;
602      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
603        reading the file ; Important: This options needs to be defined to recover
604        previous code.
605        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
606      - no longer loose real*8 precision along the way when using exf_iprec=64.
607    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
608      - change discretisation of evp-solver in order to avoid another exchange
609        (changes lab_sea) and clean up a little
610      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
611        help the adjoint (this also changes the results slightly)
612      - add a few "_d 0" where they had been missing in seaice_evp.F
613      - cleaning up: remove unused seaice_calc_rhs.F
614    o pkg/exf: some cleaning-up:
615      - change various "constants" into runtime parameters
616      - cleaned-up Large&Yeager04 routine which should eventually
617        replace exf_bulkformulae.F (changed names of S/R and CPP)
618        and merged various ALLOW_ATM_WIND options
619     only used with thsice pkg (in thsice_get_exf.F):
620      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
621        which are used when useStabilityFct_overIce=TRUE (= the default)
622      - change default values of ice & snow emissivity and scale downward LW
623        by ice & snow emissivity.
624    o pkg/thsice:
625     fix few little problems, in thsice_calc_thickn.F:
626      - growth vertically (and not laterally) if iceFrac == iceMaskMax
627      - melt only laterally if hIce < hThinIce (as the comments say)
628      and in thsice_extend.F:
629      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
630      - start to form ice as soon as the minimum ice-volume is reachable.
631     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
632      and cpl_aim+ocn
633    o pkg/kpp
634     - move computation of surface related input fields to KPP into a new
635       subroutine kpp_forcing_surf.F
636     - remove wrong (within bi,bj loops) EXCH calls.
637     - little cleaning (add argument myThid in last position, cvs header ...)
638     - for now, fix conservation problem by exchanging KPPviscAz (may not
639       be the best fix)
640    o pkg/seaice
641     - check for inconsistent evp parameter/cpp-flag combination
642     - remove leftover errIO flat for obsolete name list error handling
643    o OpenAD
644     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
645    
646    checkpoint59a
647    o pkg/seaice: some parameter clarifications and a little bit of clean up
648    o pkg/thsice: rename run-time parameters:
649       himin       -> hIceMin
650       himin0      -> hThinIce
651       hihig       -> hThickIce
652       i0          -> i0swFrac
653       transCoef   -> bMeltCoef
654       frac_energy -> fracMelting
655      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
656       with default values (for now) that do not change the results.
657      remove old version of thsice vars advection in pkg/seaice.
658    o in FFIELDS.h:
659      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
660      - make pLoad & sIceLoad always available (but still only used if
661         ATMOSPHERIC_LOADING is #define).
662    o pkg/kpp: replaced _KPP_RL with _RL
663    o bug fixes for vertical diffusivity computations when both KPP and
664        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
665        are no longer updating the vertical diffusivity array
666        (passed as argument) but are (re-) setting those arrays.
667    o pkg/seaice: fix bug in evp solver, while doing that
668      - change (improve?) discretization of stress computations for both
669        cgrid-lsr and evp solver
670      - add a new routine to compute strain rates
671      - the above changes lab_sea results
672      - add no slip conditions for evp solver (off by default), lsr-version
673        may follow
674      - fix exchange for shear at Z-points (does not change lab_sea)
675      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
676        (to force the user to pick a time step since there is not "safe" way
677        of choosing it)
678      - add principal stress diagnostics
679      - rearrange fields for evp a little to avoid having to call a: too many
680        exchanges and b: exchanges for stress trensor components which we do
681        not have.
682      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
683        of evp, complete rewrite for lsr case (latter is does not yet work
684        in all cases)
685    o pkg/kpp: add code to have mixing in shelf ice caverns
686      - add myThid to all kpp routines (long overdue)
687    
688    checkpoint59
689    o pkg/exf:
690      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
691        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
692      - move exf header files from lower_case.h to UPPER_CASE.h ;
693        add missing cvs Header & Name
694      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
695      - add namelist param. selectStressGridPosition, exf_monFreq
696      - retire many _CLIM routines, and remove data.exf_clim
697        + params moved to data.exf
698        + climsst, climsss now handled by exf_set_gen, i.e.
699          climss?period=0 refers to constant field,
700          climss?period=-12 to monthly forcing
701      - split up namelists in data.exf
702    o pkg/seaice:
703      - remove seaice_exch and seaice_exch_uv
704      - remove superfluous exchange of theta
705      - add myThid to seaice_budget_ocean/ice
706      - add new interface for atmospheric wind forcing (C-grid only)
707        + new routine
708        + two new field (taux, tauy for stress over ice)
709        + removed one global field (DAIRN) for C-grid case only
710    o pkg/thsise
711      - 2nd set of modifs for thsice adjoint in conjunction with exf
712    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
713    
714    checkpoint58y_post
715    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
716      vertical diffusivity, similar to that in MOM4; turned on using
717      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
718      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
719    o Added capability for 3D specification of background vertical diffusion
720      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
721      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
722      "data" file that contains the 3D vertical diffusivity coefficients.
723    o ice dynamics (pkg/seaice) with thsice thermodynamics:
724      - add code within pkg thsice to advect & diffuse sea-ice fields
725      similar to (and will replace) what has been added in  seaice_advdiff.F,
726      but: - conserving Mass, Heat & Salt.
727           - better when using non-linear advection scheme (not yet fully tested)
728           - can also be used in atmospheric set-up (for now, only the diffusion).
729    
730    checkpoint58x_post
731    o IO option for global-file compact format:
732      - add options when generating topology (utils/exch2/matlab-topology-generator)
733      - add I/O capability (pkg/mdsio).
734      - adapt utils/matlab/rdmds.m to read this format.
735      for now long-line format not yet supported by pkg/mdsio (& exch2).
736    o shelfice: add a few diagnostics
737    
738    checkpoint58w_post
739    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
740      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
741      (and replace horiVertRatio in NH code).
742      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
743                         and tutorial_plume_on_slope (sensitive to truncation)
744    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
745      directly to drive seaice model (C-grid only)
746    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
747     - reintroduce computation of wind from stress,
748     - compute tau (in exf_bulkformulae.F) from windstress averaged to
749       mass points to avoid tau = 0
750     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
751    o rdmnc.m: make it work with "global" files created with gluemnc
752    o rdmnc.m : some improvements in dealing with singleton dimension
753      (tested on all testreport mnc output files).
754    o genmake2: disable pkg/profiles if netcdf test fails.
755    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
756    o move call to cal_readparms up to make calendar parameters/variable available
757      to all packages
758    
759    checkpoint58v_post
760    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
761      useDynP_inEos_Zc tested.
762    o pkg/exf: changes to properly interpolate/mask/scale initial fields
763    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
764      and portions thereof.  See read_cs.txt for description and examples.
765    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
766      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
767      following the great-circle arc between those 2 points.
768    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
769      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
770    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
771     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
772     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
773     - still needs work (not working with some options ; efficiency to improve)
774       and serious testing.
775     - use this scheme for temperature & salinity in 2 advection test exp.:
776       advect_xy & advect_xz, respectively.
777    
778    checkpoint58u_post
779    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
780    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
781    o testreport: add option "-skipdir" to skip some test.
782    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
783      momentum calculation.
784    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
785    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
786      remove checkpoint.F and the_correction_step.F (no longer used);
787      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
788    o add option (linFSConserveTr) to correct for tracer source/sink due to
789      Linear Free surface
790    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
791    o pkg/thsice: fix reading mnc-pickups
792    
793    checkpoint58t_post
794    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
795    o pkg/mdsio:
796     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
797       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
798       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
799     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
800     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
801       either MDS_READ_FIELD or MDS_WRITE_FIELD )
802     - new S/R (to replace MDSWRITEMETA), which allows to write more
803       informations (variable names, time ...) to meta files.
804     - modify rdmds.m to give back the meta file content.
805    o pkg/diagnostics: change vertical interpolation to be safer, and more
806       flexible (define p-levels to interpolate to in data.diagnostics);
807      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
808       diagnostic pointer.
809    o pkg/seaice: more cleaning up of seaice_growth, added many comments
810    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
811    o fix multi-category seaice:
812     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
813       SEAICE_MULTICATEGORY
814     - fix short wave heat flux
815    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
816       and allow to use EVP solver. Change forward lab_sea: test both EVP
817       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
818    o Initial check-in of lab_sea adjoint
819      (very similar to natl_box_adjoint/code_seaice)
820      * used C-grid and EVP solver
821      * used KPP, GM/Redi
822      * uses inAdExact=.TRUE.
823      * gradient checks fail for both ADM and TLM
824        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
825        f.d. gradients actually seem more problematic than ADM, TLM gradients;
826        issue is related to forward mismatch between g77 an ifort
827    o pkg/seaice: overhaul of thermodynamics
828     - growth.F and groatb.F are replaced by new routine seaice_growth.F
829     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
830     - move a few global fields out of SEAICE.h into seaice_growth.F and
831       make them 2D (FICE/QNETO/ ...)
832     - remove FO (it is the same as QNETO)
833     - introduce a few local fields to avoid modifying external fields such
834       as atemp, etc.
835    
836    checkpoint58s_post
837    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
838      changed exf_set_gen.F so that
839        genperiod=0 means input file is one time-constant field and
840        genperiod=-12 means input file contains 12 monthly means
841    o CG2D: use pre-computed solver main-diagonal (stored in common block);
842      this affects truncation error ; generate new output file for exp. which
843      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
844        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
845        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
846        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
847        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
848        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
849    o start implementation of deep-atmosphere and anelastic formulation
850    o verification: remove 2nd copy of input files and use script "prepare_run"
851      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
852    o mom_common/vecinv/fluxform: fix a few initialisation isssues
853    o profiles: fix for multithreaded case
854    
855    o diagnostics: rename few diags:
856      s/'PRESSURE'/'RCENTER '/g
857      s/'TICE    '/'oceFreez'/g
858      s/'TAUX    '/'oceTAUX '/g
859      s/'TAUY    '/'oceTAUY '/g
860      s/'SWFLUX  '/'oceQsw  '/g
861      s/DIFx/DFxE/g
862      s/DIFy/DFyE/g
863      and add few ocean-forcing diagnostics:
864      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
865    o modifications to pkg/seaice/growth.F and budget.F, which change results of
866      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
867      as actual snow thickness.  It now refers everywhere to effective snow
868      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
869    
870    checkpoint58r_post
871    o modifications to pkg/seaice/growth.F, which change results of
872      lab_sea experiment: fixes pertain to melting snow over open water, to
873      masking EVAP under sea ice, and to using the correct AREA variable for
874      computations of EVAP, PRECIP, HSNOW, and GHEFF
875    o add ability to read bathy, salt, and theta using MNC (off by def)
876    o add flooding algorithm and advection of HSNOW for pkg/seaice;
877      both are turned off by default and do no change any results
878    o seaice advection with pkg/thsice: a step toward the use of non-linear
879      advection scheme, but #ifdef or commented out for now (requires more EXCH).
880    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
881      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
882      in natl_box (affects results @ truncation level: update output.txt)
883    o multi-threading and IO:
884      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
885      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
886        (needed to work with SingleCpuIO): tested in all verif. exp.
887    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
888      affects the results (but none of the verification test uses this scheme).
889    o Adding some pkg/diagnostics capability to pkg/seaice
890      (will certainly be subject to changes)
891    o ctrl: adding new control variables:
892      lwflux, lwdown, evap, snowprecip, apressure, runoff
893    
894    checkpoint58q_post
895    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
896      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
897      high_res_cube configuration by 4% on Columbia.
898    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
899      add (in global_with_exf/code) a version of EXF_INTERP_READ without
900      dynamical allocation (seems to work in multi-threaded).
901    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
902      single CPU io) so that TAF does not have to see EESUPPORT.h
903    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
904    
905    checkpoint58p_post
906    o obcs: stop if obcs is used with useCDscheme = .true.
907    o shelfice:
908     - fix a sign error so that no slip at shelfice interface works
909     - remove stop for combination non-hydrostatic code and shelfice. That does
910       not mean, that the results are correct, but at least they are numerically
911       stable
912    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
913    o added adjoint exch routined for all exch*3d* routines
914      and updated flow directives
915    
916    checkpoint58o_post
917    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
918      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
919    o change controling S/R for writing pickup file (new S/R do_write_pickup)
920      and clean-up reading/writing of pickup files.
921    o fix local version of read/write pickup (NH part) in rotating_tank/code
922    o simplify EXCH interface:
923     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
924     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
925    o added the regrid package
926    o shelfice:
927     - add a simple boundary layer scheme to reduce noise
928     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
929    
930    checkpoint58n_post
931    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
932       local variable (not in common block).
933    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
934      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
935      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
936        to work with SingleCpuIO.
937    o add "_d 0" to real constant of pkg/cfc subroutines ;
938       update exp. cfc_exemple & tutorial_cfc_offline output files.
939    o multi-threading and IO:
940      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
941        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
942      - barrier before and after reading.
943      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
944      - avoid using MDS_WRITELOCAL for LAND pkg output.
945      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
946        common-block variables ; Allows multi-threading with master-thread IO.
947    o change default MAX_NO_THREADS from 32 to 4 ;
948      and stop cleanly when MAX_NO_THREADS is too small.
949    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
950    
951    checkpoint58m_post
952    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
953       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
954    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
955       keep global_ocean.90x40x15 (for AD testing) with former secondary test
956       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
957    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
958        add MITgcm_tutorials (= code + all the tutorials)
959    o ecco, option to compute cost for total ssh (mean+anom)
960    o consistent with addition of ptracer and ssh in pkg/profiles
961    o profiles: adding ptracer and ssh
962    o testreport: change multi-test output-file name
963      (from output.txt.{name} to output.{name}.txt)
964    o profiles: now ok for mutli-tiles case
965    o seaice: add 4 parameters for different advection schemes for area,
966      (effective) seaice thickness, enthalphy, and snow height. Their default
967      is the standard parameter SEAICEadvScheme
968    o calc_gw:
969     - add cosFacU in zonal viscous flux (harmonic.visc.).
970     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
971       of tutorial_plume_on_slope.
972    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
973    o calc_gw: true flux-form, account for horizontal grid spacing.
974      update rotating_tank results, but not plume_on_slope (affected at
975      truncation level, 11 digits).
976    
977    checkpoint58l_post
978    o calc_gw:
979     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
980     - remove side-drag for now (need to fix it); update plume_on_slope results.
981     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
982    o commit code to make SST/SSS weights spatially variable
983      (based on either variable in-situ or variable initial T/S weights)
984    o pkg/ecco:
985      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
986        now based on horizontally varying weights wthetaLev, wsaltLev
987      * cost_averagesflags now returns year indices in addition to day, month
988      * sflux balance is performed on annual basis
989        (sflxumm, sfluxmm2, bal_sfluxmm)
990      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
991        including separate counting and multipliers
992    o pkg/rbcs
993      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
994    
995    checkpoint58k_post
996    o testreport:
997     - always build in dir. "build" (if not there, mkdir build instead of building
998       & running in input)
999     - run in dir run (if it exists), in build otherwise.
1000     - call prepare_run (if input/prepare_run exists)
1001     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1002    o pkg/exf modifications to interpolation and rotation routines for more
1003       reasonable treatment of North Pole singularity: for tracers North Pole
1004       value is set to northernmost zonal-mean value, for zonal velocity it is
1005       set to zero, and for meridional velocity it is set to northernmost value.
1006    o pkg/exf/exf_check_range.F
1007     - add tile index to diagnostics and move stop statement to the very
1008       end of the routine.
1009    o pkg/diagnostics: (diagnostics_main_init.F)
1010      define title of isomorphic variables according to the current config.
1011    o pkg/thsice with pkg/seaice dynamics:
1012    - fix domain of computation (interior only, required for exf) and do exchanges
1013    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1014    o towards a standard way of dealing with multi-threading in MONITOR
1015      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1016    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1017       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1018    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1019    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1020    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1021       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1022    o tracer advection:
1023     - clean-up and simplify calc_common_factors.F
1024     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1025       advection subroutine (but still not used within DST advection S/R)
1026    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1027    
1028    checkpoint58j_post
1029    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1030      from file (collects calls previously in FORWARD_STEP)
1031    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1032    o adjoint store dir. adjusted accordingly
1033    o genmake2
1034      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1035    
1036    checkpoint58i_post
1037    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1038      on wind stress (SEAICEstressFactor defaults to 1.)
1039    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1040      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1041    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1042      on CS-grid: no longer loosing mass.
1043    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1044    o pkg/ggl90: fix sloppy output and fix a bug
1045    o pkg/seaice: added SEAICEuseEVPpickup parameter
1046      - Set to false in order to start EVP solver with
1047        non-EVP pickup files when using SEAICEuseEVP
1048      - fix sign error in diffusion in seaice_calc_rhs
1049    
1050    checkpoint58h_post
1051    * Modifications for bottom topography control
1052      o replace hFacC by _hFacC at various places
1053      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1054      o add non-self-adjoint cg2d_nsa
1055      o update autodiff support routines
1056      o re-initialise hfac after ctrl_depth_ini
1057      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1058    * Adding verification for 5x5 box (4-layer) bottom topography control
1059    
1060    checkpoint58g_post
1061    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1062       used for mean seasonal cycle, mean diurnal cycle); add an example
1063       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1064    o pkg/ggl90:
1065      - add parameter (minimum surface kinetic energy)
1066      - fix bug (avoiding division by zero)
1067    o couple pkg/thsice to pkg/seaice:
1068      - modify advection in seaice to accomodate new scalar fields to be advected
1069      - only muliDimAdection scheme work with seaice/thsice
1070      - mapping of thsice-variables to seaice-variables, back and forth
1071      - does not break the verification experiments, but does not give the
1072        desired results either
1073    o pkg/seaice
1074      - make (default) second order advection a bit less confusing?
1075    
1076    checkpoint58f_post
1077    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1078      to pkg/seaice):
1079      - new routines thsice_map_exf and thsice_get_exf provide the interface
1080      - add an additional formal parameter to thsice_solve4temp
1081    o pkg/exf:
1082      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1083      - correct Stefan-Boltzmann constant
1084      - new parameter for longwave surface emittance
1085      - separate some stuff from exf_bulkformulae into new routines  
1086        exf_radiation, exf_wind
1087      - add new parameters and constants: longwave emissivity for ocean, ice
1088        and snow, evaporation parameters over ice
1089      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1090        either wind from stress or stress from wind
1091    o pkg/thSIce:
1092    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1093    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1094       and THSICE_CALC_THICKN
1095    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1096    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1097      to make debugging easier.
1098    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1099    o pkg/bulk_force:
1100      - clean-up comments and parameters ;
1101      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1102    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1103      generate new output for test-experiment: aim.5l_cs.thSI
1104    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1105      testreport accordingly
1106    
1107    checkpoint58e_post
1108    o SEAICE_CGRID adjoint done
1109    o R_STAR adjoint implemented.
1110      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1111      * need to sort out init. of h0facc, etc.
1112    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1113      to be able to use it in pure forward.
1114    
1115    checkpoint58d_post
1116    o upgrade simple test-experiment to tutorial example:
1117     step.1: duplicate the experiment and (step.2) will remove the old copy.
1118      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1119      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1120      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1121      tutorial_global_oce_biogeo    <- copy of dic_example
1122      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1123      tutorial_plume_on_slope       <- copy of plume_on_slope
1124      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1125      tutorial_global_oce_optim     <- empty for now (David ?)
1126      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1127     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1128    o correct a sign problem in cost_scat.F
1129    o obcs and ptracers: fix boundary conditions for advections schemes
1130      with larger stencil
1131    o thsice adjoint: start
1132    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1133      completeness
1134    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1135      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1136    o ptracers adjoint:
1137      * avoid extensive recomputatations
1138      * fix missing re-init. of gptr (missed by TAF)
1139    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1140      me to turn off the excessive output to STDOUT that this package produces
1141    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1142      and add those terms in Vector-Invariant formulation.
1143    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1144      if the control period (xx_hfluxperiod etc) is 0
1145    o in profiles pkg, clean routines and fix details
1146    o in ecco pkg, reading ssh data:
1147      fix problem in case the model does not start at iter0=0
1148    o fix mnc-pickup/restart for ptracers
1149    o new package prifiles:
1150      code to compute profile-based cost by Gael Forget
1151      (modifs in ecco, ctrl, autodiff)
1152    o Benign bug fix in initialization (spotted by M. Mazloff) of
1153      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1154    
1155    checkpoint58c_post
1156    o adjoint: finish NLFS adjoint and provide reference output in
1157      verification/global_ocean.90x40x15/results_ad_nlfs
1158    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1159      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1160      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1161      with SEAICE_CGRID defined.
1162  o move calendarDumps from "data" to "data.cal" and clean-up the code  o move calendarDumps from "data" to "data.cal" and clean-up the code
1163    with a simple call to pkg/cal S/R: CAL_TIME2WRITE    with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1164  o add useEXF & useCAL flags (for now, set in hard-coded way)  o add useEXF & useCAL flags (for now, set in hard-coded way)

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