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revision 1.703 by gforget, Fri Jul 14 22:14:28 2006 UTC revision 1.1038 by dfer, Thu Oct 30 23:38:41 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 kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
8    o gmredi (Visbeck-variable-K):
9     - add more parameters to Visbeck-variable-K.
10     - use a 5 points average for dSigmaR in Visbeck-K calculation
11       (more "homogenous": same stencil and same weights as in dSigmaH)
12     - update output of ideal_2D_oce experiment.
13    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
14      (#undef REAL4_IS_SLOW)
15     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
16       coordinate variable
17     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
18       (surface forcing fields), removes some of the functionality
19     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
20     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
21       probably not all: copy _RS surface flux fields to RL field before
22       calling DIAGNOSTICS_FILL
23     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
24       real*4 (CALL EXCH_*_RS) versions.
25     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
26       (generate new output).
27    
28    checkpoint61e
29    o gmredi (Visbeck-variable-K):
30      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
31      - change computation of Visbeck-K where Slope > Smax :        
32        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
33        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
34    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
35      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
36    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
37    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
38      does not become too large (to avoid precision problems in implicit-diffusion
39      solver); update ideal_2D_oce output.
40    o pkg ggl90:
41      - in ggl90_cal.F: compute only one set of visc/diff, used to
42        step forward TKE/T/S/momentum
43      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
44        have Prandlt =1)
45    o gmredi (fm07):
46      - add lower limit on Transition layer thickness + lower limit on 1/lambda
47      - allow to set few more params from data.gmredi
48    o pkg ggl90:
49          - add missing sqrt(2) factor in computation of mixing length
50            scale in ggl90_calc.F
51            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
52    
53    checkpoint61d
54    o adjoint modifs
55      - adapt to new field rhoInSitu
56      - allow to revert from StoreDynVars2D, StoreDynVars3D
57        to individual fields
58        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
59    o store 3-D (in-situ) density in commom block (DYNVARS.h)
60     - save 1 rho computation.
61     - no longer modify T & S inland when using down_slope pkg.
62    o gad_som : allow to switch to SOM advection for T & S without corresponding
63      pickup files (using new S/R: MDS_CHECK4FILE).
64    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
65      (for useSingleCpuIO to work in multi-threaded)
66    o pkg/shelfice:
67     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
68       with SHELFICEtopoFile in data.shelfice
69     - move code for reading ice shelf topography and modifying hFacC into separate
70       subroutines of the shelfice package
71     - separate initialisation of "fixed" and "variable" variables
72     - kTopC is not (yet) replaced by kSurfC, although this is possible
73    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
74    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
75      and rename:
76      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
77      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
78    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
79    
80    checkpoint61c
81    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
82      to add mass source/sink of fluid in the interior (3-D generalisation
83      of oceanic real-fresh water flux).
84    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
85    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
86    o new pkg: down_slope
87      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
88      - presently, modify T & S inland (dwnslp_calc_rho.F).
89        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
90      - implementation for ocean in P-coords not tested.
91      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
92    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
93      (to facilitate conversion of oceanic pkg to p-coordinate).
94    o change FIND_RHO to FIND_RHO_2D :
95      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
96    o new pkg: cheapaml
97    
98    checkpoint61b
99    o exch2:
100      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
101      - no longer depend on the order sequence (N,S,E,W).
102      - 3rd exchange no longer needed (tested with 24 tiles).
103      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
104      - exch_UV_A-grid readily available (but not yet tested).
105      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
106      (both are no longer needed) in exch_uv: no effect in forward run; but
107       get truncation error differences with adjoint exch.
108    o exch2:
109     - change index-bounds storage (moved from target to local tile,
110       more intuitive this way) ; rename/remove some variables.
111     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
112    
113    checkpoint61a
114    o exch2/matlab-topology-generator:
115      fix bug in index bounds for N-S internal exchange (hard to tell if this
116      had any effect on the solution).
117    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
118      is exceeded
119    o testreport: modify syntax of awk, so that it works also with
120      awk, and not only with nawk and gawk
121    
122    checkpoint61
123    o autodiff
124      Change default for TAF usage by removing argument '-nonew_arg'
125      This changes TAF subroutine argument list (ordering of active var.)
126      Omission of this flag leads to incompatibility w.r.t. TAMC
127      To restore TAMC-compatibility, need following modifs:
128      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
129      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
130      Tested TAF version is 1.9.22
131      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
132    
133    checkpoint60
134    --->>> This is the last checkpoint for which generating the adjoint
135    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
136    --->>> by default.
137    --->>> Future checkpoints will ommit this flag by default.
138    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
139    o pkg/grdchk: Add gradient check to etan0 perturbations.
140    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
141    o pkg/autodiff: more flexibility in zeroadj.
142      model/src: modifying do_oceanic_phys.F accordingly.
143    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
144    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
145      special setup of gmredi for which the adjoint is stable
146      enough for parameter optimization.
147    o bridging the gap between eddy stress and GM.
148      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
149          along with a change in CPP option (now ALLOW_EDDYPSI).
150      -> when using GM w/ GM_AdvForm:
151          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
152          is applied either in the tracer Eq. or in momentum Eq.
153          depending on data.gmredi (intro. GM_InMomAsStress).
154      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
155      The key modifications are in model/src/taueddy_external_forcing.F
156      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
157    
158    checkpoint59r
159    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
160      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
161      fix option to read coriolis(@ cell-corner) from files with CS-grid.
162    o pkg/mnc: add some attributes to standard 1D-coordinate variables
163    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
164      mass points, when using mnc for output
165      - add runtime parameter (missing_value, missing_value_int) to override
166        default (which is the value of getcon('UNDEF'))
167    o pkg/mnc: prepare mnc for the actual use of missing values with the
168      diagnostics package: small fix in mnc_cw_readwrite.template and more
169      initialisation of never used fields
170      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
171      versions
172    o pkg/thsice/thsice_ini_vars.F added default initial values so that
173      thermodynamics sea ice solver does not blow up when some initial fields
174      are missing.
175    o move from external_forcing_surf.F to ini_forcing.F
176      the p-coord. hack consisting in using pLoad to set phi0surf ;
177      update output of tutorial_global_oce_in_p (affected @ truncation level).
178    o Freshen up a bit hs94.1x64x5, notably:
179      remove rotationPeriod and tRef=5*0. (adjoint only), and add
180      exactConserv=.TRUE.
181    o pkg/generic_advdiff:
182      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
183      applies to files where Temperature & Salinity 2nd Order moments are used.
184    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
185      this uses a dynamically allocated internal state data structure
186      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
187      and requires a fortran 90 compiler
188    
189    checkpoint59q
190    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
191       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
192    o Refresh tutorial_global_oce_biogeo, notably:
193      - change bathymetry (put back seamounts in ACC, use hFacs)
194      - change EOS (POLY3 --> JMD95Z)
195      - use Bryan-Lewis vertical diffusivity
196      - use multidimensional advection
197      - remove old virtual virtual in dic pkg, now done through ptracer pkg
198      - change a couple of parameters in dic pkg
199    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
200    o pkg/obcs: change default to OBCSfixTopo = .true.,
201      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
202      - replace "debugMode" with "debugLevel .GE. debLevB"
203    o implementation of TAF directives for gchem,cfc,dic
204    o remove "exp5" (replaced by tutorial_deep_convection).
205    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
206      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
207      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
208      --> changes results in exp4, seaice_obcs
209    o tutorial_deep_convection :
210      update the set-up and increase resolution and domain size ; start
211      from pseudo initial conditions = output at t=120mn in order to see
212      something happening when running testreport.
213    o pkg/seaice: add os7mp as an advection scheme
214                  add check for advection schemes
215                  add a flag for restoring T and S underneath sea ice
216    o pkg/my82: add netcdf-support and diagnostics
217    o thsice pkg:
218      - Now hsMax limits snow height by turning it into ice following
219        flooding scheme (and now conserving energy)
220      - Slight rewriting of the formula in thsice_calc_thick.F
221      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
222      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
223    
224    checkpoint59p
225    o gchem / dic / cfc :
226      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
227      - add new parameter files: "data.dic" & "data.cfc" ;
228      - various re-arrangement in initialisation & header file ;
229      - fix tutorial_global_oce_biogeo for multi-threaded test.
230    o pkg/dic: test for "pickup_dic" file when restarting ;
231      if no pickup-file, can restart with a re-initialised pH (same as it did
232      before) providing pickupStrictlyMatch is set to False.
233    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
234      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
235    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
236      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
237    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
238     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
239       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
240    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
241       scheme to use for vorticty-term ;
242     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
243       (with default selectVortScheme, return to original discretisation)
244     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
245    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
246    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
247      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
248      also fix diagnostics VISCAHW & VISCA4W.
249    
250    checkpoint59o
251    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
252    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
253      move a few statemens out the main loop into separate loops
254    o pkg/shelfice:
255      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
256        (kg/m^2/s), does not break tests, because in verification/isomip,
257        rhoConstFresh=rhoConst (by accident)
258      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
259      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
260        new file model/src/seawater.F, so that they are available for all pkgs.
261      - convert potential temperature into in-situ temperature. This changes the
262        isomip tests => update tests
263    o add a flag writePickupAtEnd (default=true) to be able to suppress
264      writing a pickup at the last timestep
265    o tools/mpack-1.6 :
266      - disable automake (not working) and autoconf (not needed).
267      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
268        also cleaner with much less compilation warnings.
269    o pkg/profiles:
270      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
271      (for "less than 32 characters name" compiler requirement)
272    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
273      conditions that have a different sampling frequency than S/T/U/V obcs
274    o pkg/diagnostics (stats-diags):
275      - fix global Min/Max in case 1 processor get only empty tiles
276    o genmake2: replace (4 times)
277         make genmake_tc_1.o >> genmake_warnings 2>&1
278      with
279         COMM="$CC $CFLAGS -c genmake_tc_1.c"
280         echo $COMM >> genmake_warnings
281         $COMM >> genmake_warnings 2>&1
282      to make genmake2 always see the value of CC as specified in the optfile.
283    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
284      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
285      - modify verification advect_cs test to test SOM-advection on CS-grid.
286    o pkg/ctrl:
287      - Rewrite of ctrl_map_ini_ecco.F,
288        introducing a generic routine (ctrl_map_ini_gen.F).
289      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
290    
291    checkpoint59n
292    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
293      number in dedicate array "hdiag":
294      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
295        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
296      - many small changes (integer format) for large number of diagnostics
297      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
298        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
299    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
300      usingSphericalGrid, this allows to define the rotated grid coordinates
301      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
302      geographical coordinates according to the inverse of the rotation defined
303      by the Euler angles, so that Coriolis parameter and online-interpolation by
304      exf works with the geographical coordinates on XC/YC/XG/YG.
305      Naturally, this feature does not work with all packages, so some
306      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
307      profiles), because there the coordinates are assumed to be regular
308      spherical grid coordinates.
309    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
310      - introduce isopycnal diffusion coefficient control.
311    o tools/adjoint_options:
312      - additional control vector components.
313    o pkg/mnc: have mnc create marginally meaning full coordinate variables
314      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
315    o pkg/mypackage:
316      - add example of read/write pickup for state-var ;
317      - add entry points to the main code for state-vars diags & write-pickup.
318    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
319      transitions for useExfYearlyFields
320      - add new subroutine that determines the file to read from for
321        use*YearlyFields = .TRUE. and .FALSE.
322      - add a verification experiment to global_with_exf that tests
323        useExfYearlyFields with USE_EXF_INTERPOLATION defined
324    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
325      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
326      subroutines (which could be generated from a template, because they are
327      almost identical), for now they are included in obcs_prescribe_read.F for
328      simplicity
329    o pkg/exf:
330      - add a little more diagnostic to exf_interp_read (in analogy to
331        mds_read_field, can be turned off with debugLevel < debugLevA=1)
332      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
333        ugly but fast by unrolling short inner loops, inserting a unroll=8
334        directive in routine lagran, and splitting a loop and making do while the
335        outermost loop (the latter requires the intoduction of index arrays)
336    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
337    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
338      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
339    o verification/seaice_obcs: updated for restart test and latest options
340    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
341      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
342      for now this is only available for the C-grid code and also within
343      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
344    
345    checkpoint59m
346    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
347      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
348    o gad_som : fix flux output (& diagnostics) to have same units as other  
349      advection scheme fluxes (was previously multiplied by deltaT).  
350    o added verification/seaice_obcs both to test seaice open boundaries
351      and to provide an example matlab scrpt for generating them
352    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
353    o pkg/salt_plume: clean up salt_plume_frac.F to
354      remove redundancy in PlumeMethod 1 and 4
355    o pkg/kpp: added saltplume diagnostics
356    o pkg/obcs and pkg/seaice:
357      - do not set uice and vice to zero when OB*icefile are unspecified
358      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
359      - moved seaice tracer obcs after call to seaice_growth
360    o pkg/salt_plume: added various options for salt plume depth
361      criterion and for vertical distribution of the salt
362    
363    checkpoint59l
364    o pkg/ptracers: new version of ptracers pickup:
365      read meta file and write only fields which are needed to restart.
366      ( same logic as main pickup file ; also using pickupStrictlyMatch )
367    o pkg/seaice:
368      - add timescale for melting due to warm mixed layer as a means of
369        setting SEAICE_availHeatFrac more conveniently
370      - add a CPP-flag/runtime parameter check for flooding algorithm
371      - reformulated availHeat in seaice_growth.F to be independent of AREA
372    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
373      unit changes
374    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
375    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
376      SX vector computer.
377    o pkg/seaice:
378      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
379        seaice forcing fields can now be read only through pkg/exf
380      - removed some unused halos
381    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
382    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
383      or U/VICE from U/VWIND before computing U/VSTRESS
384    
385    checkpoint59k
386    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
387      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
388    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
389      all experiments pass when compile with un-initialised var. checking option.
390    o added pkg/salt_plume
391    o script to test restart (for now, in MITgcm_contrib/jmc_script)
392    o pkg/seaice: new read/write pickup version.
393      read meta file and write only fields which are needed to restart.
394      ( same logic as main pickup file ; also using pickupStrictlyMatch )
395    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
396    o lab_sea.hb87: modify the domain & update output.hb87.txt :
397      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
398      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
399      process. Fixed here by closing the domain at the Northern boundary.
400    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
401    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
402      a set of consecutive levels in/from a 3-D array.
403    o pkg/ptracers:
404      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
405      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
406    
407    checkpoint59j
408    o in pkgs: dic, obcs, offline, rbcs:
409      standard way to compute coeff. for time interpolation between 2 time reccords
410      which retains full precision (& make results less dependent on compiler).
411      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
412    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
413      packages instead of reading ice cover and wind speed separately
414    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
415     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
416      to allow to compile customized code before the update)
417    o cleaning-up:
418      - fix CPP instruction syntax in pkg/obcs
419      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
420        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
421      - fix some threads issue in IO parts.
422    o pkg/dic:
423      - add tons of "_d 0" (--> much better testreports !)
424       and then update outputs of tutorial_global_oce_biogeo
425    o pkg/mom_fluxform:
426      add a special version of momentum advection intended to conserve momentum
427      next to a bathymetry step or a coastline edge. (default = off = #undef)
428    o new read/write pickup version:
429      - for now, only implemented for main (mdsio) pickup file.
430      - write out only what is needed to restart; merge pickup_nh , pickup_ph
431        and main pickup together.
432      - read meta file; read only what is needed to restart; stop if a field
433        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
434        if it make sense (even if the restart is not perfect).
435      - if no meta file, assume that pickup to read corresponds exactly to
436        a pickup that would currently be written.
437      - read pickup written in the old format (until checkpoint59i) if it
438        recognizes an old meta file (no field-list).
439      - add a meta file in exp. which starts from a pickup: 2 cases:
440        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
441         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
442        b) a meta file describing the content of the associated pickup file
443         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
444    o pkg/mdsio & pkg/rw:
445      - new routine to read a meta file ; new set of routine to read
446        Multiple-fields file (with meta file).
447    o added open boundary conditions capability for seaice
448        HSNOW, HSALT, UICE, and VICE
449    
450    checkpoint59i
451    o adjoint:
452      * fix multiDimAdvection adjoint
453        (partial recomputation problem by TAF for fVerT(:,:,kDown)
454        and comlev1 size definition (maxpass vs. max. number of tracers)
455      * verification/global_ocean.90x45x15 adjoint now tests
456        NLFS and multiDimAdvection using DST3 (=30)
457      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
458    o pkg/kpp: add "_d 0" to real constant (if missing);
459      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
460      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
461    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
462      for internal parameters related to restart process (formerly from PARAMS.h)
463      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
464    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
465      as argument. (only atm2d & obcs write_pickup have not yet been updated)
466    o pkg/monitor:
467      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
468      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
469      - account for deep Atmosphere factor and density factor (anelastic)
470    o added open boundary conditions capability for seaice HEFF and AREA
471    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
472      thermodynamics
473      - requires a little reorganization, which affects the testreport results
474        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
475        so that now the conservative form is tested
476      - add a few comments
477    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
478    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
479    o add new diagnostics to seaice: advective, diffusive fluxes (only for
480      multidim-advection, for scheme 2 they are not filled) and transports,
481      thermodynamic growth rates
482    o change units of EmPmR (inside the code, + within coupling interface)
483      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
484      Affects results @ truncation level (cg2d match) and update output of
485       experiments: lab_sea(6), global_ocean.90x40x15(10),
486      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
487      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
488      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
489      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
490    
491    checkpoint59h
492    o pkg/exf:
493      - improve vectorization by moving if-statement out of loops in
494        exf_mapfields, exf_radiation
495      - exf_bulkformulae.F: introduce 2D fields and vectorize code
496    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
497    o testreport:
498      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
499        monitor & update offline_exf_seaice exp. output.
500      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
501    o pkg/seaice:
502      - bug fix in the evp solver: boundary conditions were affected be
503        masking of zMax/zMin (changes results)
504      - minor bug fix in boundary conditions in seaice_calc_strainrates
505        (changes results for no_slip)
506      - seaice_lsr.F: make interpolation of eta dependent on boundaries
507      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
508      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
509        stress formulation and no-slip boundary conditions
510    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
511      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
512    o pkg/seaice: a first HSALT time stepping equation has been checked in
513    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
514      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
515      without requiring DO-IF statements
516    o pkg/thsice:
517      use continuous power-law function for partition of energy between lateral
518      melting/freezing and thinning/thickening ; old code using step function
519      still available with #undef THSICE_FRACEN_POWERLAW
520      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
521    o testreport: change AD testing : check against results/output_adm.txt
522      using same scripts as for forward test.
523    
524    checkpoint59g
525    o adjoint testing: in preparation for changing testreport:
526      - output format: cost and grad written on separated lines
527      - ad output results in directory "results" (instead of "results_ad")
528    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
529    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
530    o pkg/ecco: allow user defined cost function contributions
531    o testreport:
532      Allow to choose (per experiment) the list of tested output variables
533       and the main variable (used to issue a pass/FAIL ) ;
534      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
535      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
536      Also modify printing of summary:
537       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
538       b) echo the list of tested variables in the individual summary.txt of
539          each experiment.
540    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
541      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
542      (but still depend on the tile decompostion of the domain).
543    o pkg/seaice: change a discretization detail to make the B-grid code
544      "more symmetric". This change is likely to remove all "ridges/leads" that
545      where quasi-aligned with the grid in B-grid solutions. It may also be
546      the solution to the stress coupling issues with the B-grid.
547    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
548      remove .cvsignore from input dir. (since testreport no longer run here).
549    o pkg/thsice:
550     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
551     - fix reshaping of sea-ice just after advection:
552       melt all the ice only if ice-volume is too small.
553     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
554       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
555     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
556    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
557      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
558    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
559      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
560      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
561      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
562      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
563      -> update output.txt
564    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
565     this affects truncation error: -> update output.txt of exp:
566      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
567      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
568    
569    checkpoint59f
570    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
571    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
572      a bounded range (in forward mode)
573    o pkg/ecco, ctrl, autodiff and mom_common:
574     internal parameter controls, completements of implementations
575    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
576    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
577      (not seem any difference in testing results).
578    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
579       at face corners.
580    o pkg/generic_advdiff:
581     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
582      loop range indices for computing vertical advection tendency
583      and do the calculation in the interior only (no overlap) ;
584      for now, only implemented for SOM advection (to save CPU time).
585     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
586    o exch2 adjoint
587      First set of changes:
588      - add exch2 hand-written adjoint templates
589      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
590        This will require cleanup in pkg/autodiff/*.F
591        (changed routines currently kept separate in verif. code/)
592      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
593        that used to hide exch2 or cubed-sphere specific code
594        (commented via 'cph-exch2')
595    o pkg/seaice
596      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
597    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
598       output of global_ocean.cs32x15.thsice .
599    
600    checkpoint59e
601    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
602      for B-grid vector (not yet tested) and C-grid vector (<- only used
603      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
604    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
605      (#ifdef ALLOW_SALT_PLUME)
606    o gather_2d/scatter_2d: removed halo regions
607    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
608      scheme and the corresponding test case (under front_relax dir). For now,
609      only available with Skew-flux form and not yet tested in realistic set-up.
610      adjoint: store directives updated, but gradient checks deteriorated,
611      so maybe GM/Redi adjoint is now broken.
612    o seaice adjoint
613      * add AREA, HEFF, HSNOW as control variable
614        (should not change lab_sea results)
615      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
616    o pkg/seaice:
617      * added computation of saltFlux in seaice_growth;
618        For time being, sea ice salinity is assumed constant
619        contribution of snow flooding to freshening of sea ice is neglected.
620        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
621        defaults to 0.0 in order to maintain backward compatibility.
622        Typical values for SEAICE_salinity are 4 to 10 g/kg.
623      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
624      * added SEAICE_availHeatFrac, which specifies fraction of surface level
625        heat content used to melt or grow ice
626      * commented out cap of HICE: it helps keep ice thinner
627      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
628      * applied OBCS T/S mask to HEFFM sea ice mask
629    
630    checkpoint59d
631    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
632     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
633     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
634    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
635     and change default value of parameter "GM_Small_Number";
636     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
637       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
638       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
639    o pkg/ecco: cost function when applying pkg/smooth to controls
640    o pkg/ctrl: add forcingPrecond run time parameter
641    o pkg/seaice:
642     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
643     - fix bug in metric terms of u-equation in LSR solver (implicit part),
644       changes verification/lab_sea
645     - rearrange implicit part of u-equation in LSR solver to make it easier to
646       read, understand, and debug. This causes changes at the truncation level.
647     - fix (serious) bug in the boundary conditions (sign error in the implicit
648       part) of the LSR solver. Changes all LSR results.
649     - fixed problem with HSNOW initialization to avoid thick snow when AREA
650       is initilized with small values - does not change lab_sea results.
651     - added HsnowFile initialization capability
652    o pkg/smooth: addition to model/src and pkg/ctrl so allow
653     initialization of pkg/smooth and application to control vector
654    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
655    o dependencies: pkg/profiles requires pkg/cal
656    o pkg/profiles:
657     - added option ALLOW_PROFILES_GENERICGRID
658         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
659         that interpolation information (grid points and coefficients) is provided
660         within the netcdf input files.
661         -> sample matlab scripts can be found in MITgcm_contrib/gael
662         that allow you to prepare netcdf input files.
663     - also modified: cleaner include statements, cleaner error print statements,
664       cleaner stops when error, and more tests of the netcdf input files consistency.
665    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
666    o pkg/seaice:
667     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
668       requires a new routine: seaice_diagnostics_fill.F
669     - make sure that seaice does not move if not forced (pressure replacement
670       method, Hibler and Ip, 1995), changes results
671     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
672     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
673       It is turned off by default (=-1.), because it changes the results.
674     - make it possible to read AREA from a file, too.
675    
676    checkpoint59c
677    o add S/R and diagnostics for oceanic mixed-layer depth
678    o move GMRedi call after all vertical mixing schemes (including KPP)
679    o pkg/thsice:
680     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
681      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
682    o pkg/obcs:
683     - bug fix for balance code
684    o pkg/seaice:
685      - allow values of SEAICE_elasticParm > 1
686      - add new parameter SEAICE_evpTauRelax as an alternative
687        to SEAICE_elasticParm
688      - make lsr boundary conditions free slip (by default), changes result
689      - add code for no slip boundary conditions for lsr
690      - set minimum of zeta to zero (and not 4e8) (changes results)
691      - add a cap on AREA after advecting AREA if seaice_growth is not called
692    o change calculation of Visbeck K:
693      - no longer depend on tapering scheme; instead, compute slope (limited
694        by GM_maxSlope). this is equivalent to what was comuted before with
695        clipping or linear tappering.
696      - fix vertical averaging (wrong by 1/2 level)
697      - leave the old version (but will not be maintained) within
698        #ifdef OLD_VISBECK_CALC / #endif
699      - update output of exp. ideal_2D_oce
700    o change error catch in calc_r_star to improve vectorization
701    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
702      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
703    o adjoint:
704      Re-organized adjoint checkpointing according to Matt Mazloff
705      (but with modifs/completions/cleanups)
706      Storing is now bundled into large arrays to optimized I/O
707      (and second step in cleanup of the_main_loop)
708    
709    checkpoint59b
710    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
711      - export/import (between ocean & coupler) fields needed for ocean DIC.
712    o pkg/seaice:
713      - get rid of three more exchanges seaice_calc_viscosities (required
714        different loop boundaries in seaice_lsr and seaice_ocean_stress)
715      - bug fix in seaice_ocean_stress (update of lab_sea required)
716      - reduce loop boundaries to necessary minimum also in seaice_evp
717      - go back to the old way of computing deltaC/Z as the adjoint likes that
718        better
719    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
720      passive tracer to an Age Tracer) + update output.txt
721    o pkg/exf:
722      - implement A-grid / C-grid selection for wind-stress input files.
723      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
724      for now, in exf_bulk_largeyeager04.F only :
725      - change implementation for case where windspeed + 2. components wind-stress
726        are read-in. AND use rhoConstFresh to convert evap.
727    o pkg/seaice:
728      - use correct EXCH_UV for wind-forcing (on A-grid).
729      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
730        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
731    o pkg/exf:
732      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
733      EXF_INTERPOLATION:
734      - merge global_with_exf/code version of exf_interp_read.F
735        to the main code ;
736      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
737        reading the file ; Important: This options needs to be defined to recover
738        previous code.
739        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
740      - no longer loose real*8 precision along the way when using exf_iprec=64.
741    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
742      - change discretisation of evp-solver in order to avoid another exchange
743        (changes lab_sea) and clean up a little
744      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
745        help the adjoint (this also changes the results slightly)
746      - add a few "_d 0" where they had been missing in seaice_evp.F
747      - cleaning up: remove unused seaice_calc_rhs.F
748    o pkg/exf: some cleaning-up:
749      - change various "constants" into runtime parameters
750      - cleaned-up Large&Yeager04 routine which should eventually
751        replace exf_bulkformulae.F (changed names of S/R and CPP)
752        and merged various ALLOW_ATM_WIND options
753     only used with thsice pkg (in thsice_get_exf.F):
754      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
755        which are used when useStabilityFct_overIce=TRUE (= the default)
756      - change default values of ice & snow emissivity and scale downward LW
757        by ice & snow emissivity.
758    o pkg/thsice:
759     fix few little problems, in thsice_calc_thickn.F:
760      - growth vertically (and not laterally) if iceFrac == iceMaskMax
761      - melt only laterally if hIce < hThinIce (as the comments say)
762      and in thsice_extend.F:
763      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
764      - start to form ice as soon as the minimum ice-volume is reachable.
765     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
766      and cpl_aim+ocn
767    o pkg/kpp
768     - move computation of surface related input fields to KPP into a new
769       subroutine kpp_forcing_surf.F
770     - remove wrong (within bi,bj loops) EXCH calls.
771     - little cleaning (add argument myThid in last position, cvs header ...)
772     - for now, fix conservation problem by exchanging KPPviscAz (may not
773       be the best fix)
774    o pkg/seaice
775     - check for inconsistent evp parameter/cpp-flag combination
776     - remove leftover errIO flat for obsolete name list error handling
777    o OpenAD
778     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
779    
780    checkpoint59a
781    o pkg/seaice: some parameter clarifications and a little bit of clean up
782    o pkg/thsice: rename run-time parameters:
783       himin       -> hIceMin
784       himin0      -> hThinIce
785       hihig       -> hThickIce
786       i0          -> i0swFrac
787       transCoef   -> bMeltCoef
788       frac_energy -> fracMelting
789      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
790       with default values (for now) that do not change the results.
791      remove old version of thsice vars advection in pkg/seaice.
792    o in FFIELDS.h:
793      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
794      - make pLoad & sIceLoad always available (but still only used if
795         ATMOSPHERIC_LOADING is #define).
796    o pkg/kpp: replaced _KPP_RL with _RL
797    o bug fixes for vertical diffusivity computations when both KPP and
798        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
799        are no longer updating the vertical diffusivity array
800        (passed as argument) but are (re-) setting those arrays.
801    o pkg/seaice: fix bug in evp solver, while doing that
802      - change (improve?) discretization of stress computations for both
803        cgrid-lsr and evp solver
804      - add a new routine to compute strain rates
805      - the above changes lab_sea results
806      - add no slip conditions for evp solver (off by default), lsr-version
807        may follow
808      - fix exchange for shear at Z-points (does not change lab_sea)
809      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
810        (to force the user to pick a time step since there is not "safe" way
811        of choosing it)
812      - add principal stress diagnostics
813      - rearrange fields for evp a little to avoid having to call a: too many
814        exchanges and b: exchanges for stress trensor components which we do
815        not have.
816      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
817        of evp, complete rewrite for lsr case (latter is does not yet work
818        in all cases)
819    o pkg/kpp: add code to have mixing in shelf ice caverns
820      - add myThid to all kpp routines (long overdue)
821    
822    checkpoint59
823    o pkg/exf:
824      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
825        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
826      - move exf header files from lower_case.h to UPPER_CASE.h ;
827        add missing cvs Header & Name
828      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
829      - add namelist param. selectStressGridPosition, exf_monFreq
830      - retire many _CLIM routines, and remove data.exf_clim
831        + params moved to data.exf
832        + climsst, climsss now handled by exf_set_gen, i.e.
833          climss?period=0 refers to constant field,
834          climss?period=-12 to monthly forcing
835      - split up namelists in data.exf
836    o pkg/seaice:
837      - remove seaice_exch and seaice_exch_uv
838      - remove superfluous exchange of theta
839      - add myThid to seaice_budget_ocean/ice
840      - add new interface for atmospheric wind forcing (C-grid only)
841        + new routine
842        + two new field (taux, tauy for stress over ice)
843        + removed one global field (DAIRN) for C-grid case only
844    o pkg/thsise
845      - 2nd set of modifs for thsice adjoint in conjunction with exf
846    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
847    
848    checkpoint58y_post
849    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
850      vertical diffusivity, similar to that in MOM4; turned on using
851      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
852      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
853    o Added capability for 3D specification of background vertical diffusion
854      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
855      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
856      "data" file that contains the 3D vertical diffusivity coefficients.
857    o ice dynamics (pkg/seaice) with thsice thermodynamics:
858      - add code within pkg thsice to advect & diffuse sea-ice fields
859      similar to (and will replace) what has been added in  seaice_advdiff.F,
860      but: - conserving Mass, Heat & Salt.
861           - better when using non-linear advection scheme (not yet fully tested)
862           - can also be used in atmospheric set-up (for now, only the diffusion).
863    
864    checkpoint58x_post
865    o IO option for global-file compact format:
866      - add options when generating topology (utils/exch2/matlab-topology-generator)
867      - add I/O capability (pkg/mdsio).
868      - adapt utils/matlab/rdmds.m to read this format.
869      for now long-line format not yet supported by pkg/mdsio (& exch2).
870    o shelfice: add a few diagnostics
871    
872    checkpoint58w_post
873    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
874      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
875      (and replace horiVertRatio in NH code).
876      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
877                         and tutorial_plume_on_slope (sensitive to truncation)
878    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
879      directly to drive seaice model (C-grid only)
880    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
881     - reintroduce computation of wind from stress,
882     - compute tau (in exf_bulkformulae.F) from windstress averaged to
883       mass points to avoid tau = 0
884     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
885    o rdmnc.m: make it work with "global" files created with gluemnc
886    o rdmnc.m : some improvements in dealing with singleton dimension
887      (tested on all testreport mnc output files).
888    o genmake2: disable pkg/profiles if netcdf test fails.
889    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
890    o move call to cal_readparms up to make calendar parameters/variable available
891      to all packages
892    
893    checkpoint58v_post
894    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
895      useDynP_inEos_Zc tested.
896    o pkg/exf: changes to properly interpolate/mask/scale initial fields
897    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
898      and portions thereof.  See read_cs.txt for description and examples.
899    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
900      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
901      following the great-circle arc between those 2 points.
902    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
903      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
904    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
905     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
906     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
907     - still needs work (not working with some options ; efficiency to improve)
908       and serious testing.
909     - use this scheme for temperature & salinity in 2 advection test exp.:
910       advect_xy & advect_xz, respectively.
911    
912    checkpoint58u_post
913    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
914    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
915    o testreport: add option "-skipdir" to skip some test.
916    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
917      momentum calculation.
918    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
919    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
920      remove checkpoint.F and the_correction_step.F (no longer used);
921      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
922    o add option (linFSConserveTr) to correct for tracer source/sink due to
923      Linear Free surface
924    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
925    o pkg/thsice: fix reading mnc-pickups
926    
927    checkpoint58t_post
928    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
929    o pkg/mdsio:
930     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
931       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
932       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
933     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
934     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
935       either MDS_READ_FIELD or MDS_WRITE_FIELD )
936     - new S/R (to replace MDSWRITEMETA), which allows to write more
937       informations (variable names, time ...) to meta files.
938     - modify rdmds.m to give back the meta file content.
939    o pkg/diagnostics: change vertical interpolation to be safer, and more
940       flexible (define p-levels to interpolate to in data.diagnostics);
941      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
942       diagnostic pointer.
943    o pkg/seaice: more cleaning up of seaice_growth, added many comments
944    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
945    o fix multi-category seaice:
946     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
947       SEAICE_MULTICATEGORY
948     - fix short wave heat flux
949    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
950       and allow to use EVP solver. Change forward lab_sea: test both EVP
951       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
952    o Initial check-in of lab_sea adjoint
953      (very similar to natl_box_adjoint/code_seaice)
954      * used C-grid and EVP solver
955      * used KPP, GM/Redi
956      * uses inAdExact=.TRUE.
957      * gradient checks fail for both ADM and TLM
958        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
959        f.d. gradients actually seem more problematic than ADM, TLM gradients;
960        issue is related to forward mismatch between g77 an ifort
961    o pkg/seaice: overhaul of thermodynamics
962     - growth.F and groatb.F are replaced by new routine seaice_growth.F
963     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
964     - move a few global fields out of SEAICE.h into seaice_growth.F and
965       make them 2D (FICE/QNETO/ ...)
966     - remove FO (it is the same as QNETO)
967     - introduce a few local fields to avoid modifying external fields such
968       as atemp, etc.
969    
970    checkpoint58s_post
971    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
972      changed exf_set_gen.F so that
973        genperiod=0 means input file is one time-constant field and
974        genperiod=-12 means input file contains 12 monthly means
975    o CG2D: use pre-computed solver main-diagonal (stored in common block);
976      this affects truncation error ; generate new output file for exp. which
977      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
978        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
979        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
980        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
981        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
982        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
983    o start implementation of deep-atmosphere and anelastic formulation
984    o verification: remove 2nd copy of input files and use script "prepare_run"
985      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
986    o mom_common/vecinv/fluxform: fix a few initialisation isssues
987    o profiles: fix for multithreaded case
988    
989    o diagnostics: rename few diags:
990      s/'PRESSURE'/'RCENTER '/g
991      s/'TICE    '/'oceFreez'/g
992      s/'TAUX    '/'oceTAUX '/g
993      s/'TAUY    '/'oceTAUY '/g
994      s/'SWFLUX  '/'oceQsw  '/g
995      s/DIFx/DFxE/g
996      s/DIFy/DFyE/g
997      and add few ocean-forcing diagnostics:
998      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
999    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1000      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1001      as actual snow thickness.  It now refers everywhere to effective snow
1002      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1003    
1004    checkpoint58r_post
1005    o modifications to pkg/seaice/growth.F, which change results of
1006      lab_sea experiment: fixes pertain to melting snow over open water, to
1007      masking EVAP under sea ice, and to using the correct AREA variable for
1008      computations of EVAP, PRECIP, HSNOW, and GHEFF
1009    o add ability to read bathy, salt, and theta using MNC (off by def)
1010    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1011      both are turned off by default and do no change any results
1012    o seaice advection with pkg/thsice: a step toward the use of non-linear
1013      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1014    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1015      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1016      in natl_box (affects results @ truncation level: update output.txt)
1017    o multi-threading and IO:
1018      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1019      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1020        (needed to work with SingleCpuIO): tested in all verif. exp.
1021    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1022      affects the results (but none of the verification test uses this scheme).
1023    o Adding some pkg/diagnostics capability to pkg/seaice
1024      (will certainly be subject to changes)
1025    o ctrl: adding new control variables:
1026      lwflux, lwdown, evap, snowprecip, apressure, runoff
1027    
1028    checkpoint58q_post
1029    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1030      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1031      high_res_cube configuration by 4% on Columbia.
1032    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1033      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1034      dynamical allocation (seems to work in multi-threaded).
1035    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1036      single CPU io) so that TAF does not have to see EESUPPORT.h
1037    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1038    
1039    checkpoint58p_post
1040    o obcs: stop if obcs is used with useCDscheme = .true.
1041    o shelfice:
1042     - fix a sign error so that no slip at shelfice interface works
1043     - remove stop for combination non-hydrostatic code and shelfice. That does
1044       not mean, that the results are correct, but at least they are numerically
1045       stable
1046    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1047    o added adjoint exch routined for all exch*3d* routines
1048      and updated flow directives
1049    
1050    checkpoint58o_post
1051    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1052      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1053    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1054      and clean-up reading/writing of pickup files.
1055    o fix local version of read/write pickup (NH part) in rotating_tank/code
1056    o simplify EXCH interface:
1057     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1058     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1059    o added the regrid package
1060    o shelfice:
1061     - add a simple boundary layer scheme to reduce noise
1062     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1063    
1064    checkpoint58n_post
1065    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1066       local variable (not in common block).
1067    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1068      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1069      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1070        to work with SingleCpuIO.
1071    o add "_d 0" to real constant of pkg/cfc subroutines ;
1072       update exp. cfc_exemple & tutorial_cfc_offline output files.
1073    o multi-threading and IO:
1074      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1075        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1076      - barrier before and after reading.
1077      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1078      - avoid using MDS_WRITELOCAL for LAND pkg output.
1079      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1080        common-block variables ; Allows multi-threading with master-thread IO.
1081    o change default MAX_NO_THREADS from 32 to 4 ;
1082      and stop cleanly when MAX_NO_THREADS is too small.
1083    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1084    
1085    checkpoint58m_post
1086    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1087       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1088    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1089       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1090       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1091    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1092        add MITgcm_tutorials (= code + all the tutorials)
1093    o ecco, option to compute cost for total ssh (mean+anom)
1094    o consistent with addition of ptracer and ssh in pkg/profiles
1095  o profiles: adding ptracer and ssh  o profiles: adding ptracer and ssh
1096  o testreport: change multi-test output-file name  o testreport: change multi-test output-file name
1097    (from output.txt.{name} to output.{name}.txt)    (from output.txt.{name} to output.{name}.txt)
1098  o profiles: now ok for mutli-threaded case  o profiles: now ok for mutli-tiles case
1099  o seaice: add 4 parameters for different advection schemes for area,  o seaice: add 4 parameters for different advection schemes for area,
1100    (effective) seaice thickness, enthalphy, and snow height. Their default    (effective) seaice thickness, enthalphy, and snow height. Their default
1101    is the standard parameter SEAICEadvScheme    is the standard parameter SEAICEadvScheme

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