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revision 1.834 by jmc, Tue Jun 12 16:04:45 2007 UTC revision 1.1035 by mlosch, Mon Oct 27 05:16:06 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 fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
8      (#undef REAL4_IS_SLOW)
9     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
10       coordinate variable
11     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
12       (surface forcing fields), removes some of the functionality
13     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
14     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
15       probably not all: copy _RS surface flux fields to RL field before
16       calling DIAGNOSTICS_FILL
17     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
18       real*4 (CALL EXCH_*_RS) versions.
19    
20    checkpoint61e
21    o gmredi (Visbeck-variable-K):
22      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
23      - change computation of Visbeck-K where Slope > Smax :        
24        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
25        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
26    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
27      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
28    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
29    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
30      does not become too large (to avoid precision problems in implicit-diffusion
31      solver); update ideal_2D_oce output.
32    o pkg ggl90:
33      - in ggl90_cal.F: compute only one set of visc/diff, used to
34        step forward TKE/T/S/momentum
35      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
36        have Prandlt =1)
37    o gmredi (fm07):
38      - add lower limit on Transition layer thickness + lower limit on 1/lambda
39      - allow to set few more params from data.gmredi
40    o pkg ggl90:
41          - add missing sqrt(2) factor in computation of mixing length
42            scale in ggl90_calc.F
43            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
44    
45    checkpoint61d
46    o adjoint modifs
47      - adapt to new field rhoInSitu
48      - allow to revert from StoreDynVars2D, StoreDynVars3D
49        to individual fields
50        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
51    o store 3-D (in-situ) density in commom block (DYNVARS.h)
52     - save 1 rho computation.
53     - no longer modify T & S inland when using down_slope pkg.
54    o gad_som : allow to switch to SOM advection for T & S without corresponding
55      pickup files (using new S/R: MDS_CHECK4FILE).
56    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
57      (for useSingleCpuIO to work in multi-threaded)
58    o pkg/shelfice:
59     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
60       with SHELFICEtopoFile in data.shelfice
61     - move code for reading ice shelf topography and modifying hFacC into separate
62       subroutines of the shelfice package
63     - separate initialisation of "fixed" and "variable" variables
64     - kTopC is not (yet) replaced by kSurfC, although this is possible
65    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
66    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
67      and rename:
68      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
69      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
70    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
71    
72    checkpoint61c
73    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
74      to add mass source/sink of fluid in the interior (3-D generalisation
75      of oceanic real-fresh water flux).
76    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
77    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
78    o new pkg: down_slope
79      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
80      - presently, modify T & S inland (dwnslp_calc_rho.F).
81        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
82      - implementation for ocean in P-coords not tested.
83      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
84    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
85      (to facilitate conversion of oceanic pkg to p-coordinate).
86    o change FIND_RHO to FIND_RHO_2D :
87      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
88    o new pkg: cheapaml
89    
90    checkpoint61b
91    o exch2:
92      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
93      - no longer depend on the order sequence (N,S,E,W).
94      - 3rd exchange no longer needed (tested with 24 tiles).
95      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
96      - exch_UV_A-grid readily available (but not yet tested).
97      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
98      (both are no longer needed) in exch_uv: no effect in forward run; but
99       get truncation error differences with adjoint exch.
100    o exch2:
101     - change index-bounds storage (moved from target to local tile,
102       more intuitive this way) ; rename/remove some variables.
103     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
104    
105    checkpoint61a
106    o exch2/matlab-topology-generator:
107      fix bug in index bounds for N-S internal exchange (hard to tell if this
108      had any effect on the solution).
109    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
110      is exceeded
111    o testreport: modify syntax of awk, so that it works also with
112      awk, and not only with nawk and gawk
113    
114    checkpoint61
115    o autodiff
116      Change default for TAF usage by removing argument '-nonew_arg'
117      This changes TAF subroutine argument list (ordering of active var.)
118      Omission of this flag leads to incompatibility w.r.t. TAMC
119      To restore TAMC-compatibility, need following modifs:
120      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
121      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
122      Tested TAF version is 1.9.22
123      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
124    
125    checkpoint60
126    --->>> This is the last checkpoint for which generating the adjoint
127    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
128    --->>> by default.
129    --->>> Future checkpoints will ommit this flag by default.
130    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
131    o pkg/grdchk: Add gradient check to etan0 perturbations.
132    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
133    o pkg/autodiff: more flexibility in zeroadj.
134      model/src: modifying do_oceanic_phys.F accordingly.
135    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
136    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
137      special setup of gmredi for which the adjoint is stable
138      enough for parameter optimization.
139    o bridging the gap between eddy stress and GM.
140      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
141          along with a change in CPP option (now ALLOW_EDDYPSI).
142      -> when using GM w/ GM_AdvForm:
143          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
144          is applied either in the tracer Eq. or in momentum Eq.
145          depending on data.gmredi (intro. GM_InMomAsStress).
146      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
147      The key modifications are in model/src/taueddy_external_forcing.F
148      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
149    
150    checkpoint59r
151    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
152      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
153      fix option to read coriolis(@ cell-corner) from files with CS-grid.
154    o pkg/mnc: add some attributes to standard 1D-coordinate variables
155    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
156      mass points, when using mnc for output
157      - add runtime parameter (missing_value, missing_value_int) to override
158        default (which is the value of getcon('UNDEF'))
159    o pkg/mnc: prepare mnc for the actual use of missing values with the
160      diagnostics package: small fix in mnc_cw_readwrite.template and more
161      initialisation of never used fields
162      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
163      versions
164    o pkg/thsice/thsice_ini_vars.F added default initial values so that
165      thermodynamics sea ice solver does not blow up when some initial fields
166      are missing.
167    o move from external_forcing_surf.F to ini_forcing.F
168      the p-coord. hack consisting in using pLoad to set phi0surf ;
169      update output of tutorial_global_oce_in_p (affected @ truncation level).
170    o Freshen up a bit hs94.1x64x5, notably:
171      remove rotationPeriod and tRef=5*0. (adjoint only), and add
172      exactConserv=.TRUE.
173    o pkg/generic_advdiff:
174      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
175      applies to files where Temperature & Salinity 2nd Order moments are used.
176    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
177      this uses a dynamically allocated internal state data structure
178      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
179      and requires a fortran 90 compiler
180    
181    checkpoint59q
182    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
183       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
184    o Refresh tutorial_global_oce_biogeo, notably:
185      - change bathymetry (put back seamounts in ACC, use hFacs)
186      - change EOS (POLY3 --> JMD95Z)
187      - use Bryan-Lewis vertical diffusivity
188      - use multidimensional advection
189      - remove old virtual virtual in dic pkg, now done through ptracer pkg
190      - change a couple of parameters in dic pkg
191    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
192    o pkg/obcs: change default to OBCSfixTopo = .true.,
193      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
194      - replace "debugMode" with "debugLevel .GE. debLevB"
195    o implementation of TAF directives for gchem,cfc,dic
196    o remove "exp5" (replaced by tutorial_deep_convection).
197    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
198      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
199      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
200      --> changes results in exp4, seaice_obcs
201    o tutorial_deep_convection :
202      update the set-up and increase resolution and domain size ; start
203      from pseudo initial conditions = output at t=120mn in order to see
204      something happening when running testreport.
205    o pkg/seaice: add os7mp as an advection scheme
206                  add check for advection schemes
207                  add a flag for restoring T and S underneath sea ice
208    o pkg/my82: add netcdf-support and diagnostics
209    o thsice pkg:
210      - Now hsMax limits snow height by turning it into ice following
211        flooding scheme (and now conserving energy)
212      - Slight rewriting of the formula in thsice_calc_thick.F
213      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
214      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
215    
216    checkpoint59p
217    o gchem / dic / cfc :
218      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
219      - add new parameter files: "data.dic" & "data.cfc" ;
220      - various re-arrangement in initialisation & header file ;
221      - fix tutorial_global_oce_biogeo for multi-threaded test.
222    o pkg/dic: test for "pickup_dic" file when restarting ;
223      if no pickup-file, can restart with a re-initialised pH (same as it did
224      before) providing pickupStrictlyMatch is set to False.
225    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
226      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
227    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
228      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
229    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
230     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
231       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
232    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
233       scheme to use for vorticty-term ;
234     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
235       (with default selectVortScheme, return to original discretisation)
236     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
237    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
238    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
239      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
240      also fix diagnostics VISCAHW & VISCA4W.
241    
242    checkpoint59o
243    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
244    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
245      move a few statemens out the main loop into separate loops
246    o pkg/shelfice:
247      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
248        (kg/m^2/s), does not break tests, because in verification/isomip,
249        rhoConstFresh=rhoConst (by accident)
250      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
251      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
252        new file model/src/seawater.F, so that they are available for all pkgs.
253      - convert potential temperature into in-situ temperature. This changes the
254        isomip tests => update tests
255    o add a flag writePickupAtEnd (default=true) to be able to suppress
256      writing a pickup at the last timestep
257    o tools/mpack-1.6 :
258      - disable automake (not working) and autoconf (not needed).
259      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
260        also cleaner with much less compilation warnings.
261    o pkg/profiles:
262      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
263      (for "less than 32 characters name" compiler requirement)
264    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
265      conditions that have a different sampling frequency than S/T/U/V obcs
266    o pkg/diagnostics (stats-diags):
267      - fix global Min/Max in case 1 processor get only empty tiles
268    o genmake2: replace (4 times)
269         make genmake_tc_1.o >> genmake_warnings 2>&1
270      with
271         COMM="$CC $CFLAGS -c genmake_tc_1.c"
272         echo $COMM >> genmake_warnings
273         $COMM >> genmake_warnings 2>&1
274      to make genmake2 always see the value of CC as specified in the optfile.
275    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
276      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
277      - modify verification advect_cs test to test SOM-advection on CS-grid.
278    o pkg/ctrl:
279      - Rewrite of ctrl_map_ini_ecco.F,
280        introducing a generic routine (ctrl_map_ini_gen.F).
281      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
282    
283    checkpoint59n
284    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
285      number in dedicate array "hdiag":
286      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
287        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
288      - many small changes (integer format) for large number of diagnostics
289      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
290        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
291    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
292      usingSphericalGrid, this allows to define the rotated grid coordinates
293      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
294      geographical coordinates according to the inverse of the rotation defined
295      by the Euler angles, so that Coriolis parameter and online-interpolation by
296      exf works with the geographical coordinates on XC/YC/XG/YG.
297      Naturally, this feature does not work with all packages, so some
298      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
299      profiles), because there the coordinates are assumed to be regular
300      spherical grid coordinates.
301    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
302      - introduce isopycnal diffusion coefficient control.
303    o tools/adjoint_options:
304      - additional control vector components.
305    o pkg/mnc: have mnc create marginally meaning full coordinate variables
306      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
307    o pkg/mypackage:
308      - add example of read/write pickup for state-var ;
309      - add entry points to the main code for state-vars diags & write-pickup.
310    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
311      transitions for useExfYearlyFields
312      - add new subroutine that determines the file to read from for
313        use*YearlyFields = .TRUE. and .FALSE.
314      - add a verification experiment to global_with_exf that tests
315        useExfYearlyFields with USE_EXF_INTERPOLATION defined
316    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
317      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
318      subroutines (which could be generated from a template, because they are
319      almost identical), for now they are included in obcs_prescribe_read.F for
320      simplicity
321    o pkg/exf:
322      - add a little more diagnostic to exf_interp_read (in analogy to
323        mds_read_field, can be turned off with debugLevel < debugLevA=1)
324      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
325        ugly but fast by unrolling short inner loops, inserting a unroll=8
326        directive in routine lagran, and splitting a loop and making do while the
327        outermost loop (the latter requires the intoduction of index arrays)
328    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
329    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
330      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
331    o verification/seaice_obcs: updated for restart test and latest options
332    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
333      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
334      for now this is only available for the C-grid code and also within
335      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
336    
337    checkpoint59m
338    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
339      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
340    o gad_som : fix flux output (& diagnostics) to have same units as other  
341      advection scheme fluxes (was previously multiplied by deltaT).  
342    o added verification/seaice_obcs both to test seaice open boundaries
343      and to provide an example matlab scrpt for generating them
344    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
345    o pkg/salt_plume: clean up salt_plume_frac.F to
346      remove redundancy in PlumeMethod 1 and 4
347    o pkg/kpp: added saltplume diagnostics
348    o pkg/obcs and pkg/seaice:
349      - do not set uice and vice to zero when OB*icefile are unspecified
350      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
351      - moved seaice tracer obcs after call to seaice_growth
352    o pkg/salt_plume: added various options for salt plume depth
353      criterion and for vertical distribution of the salt
354    
355    checkpoint59l
356    o pkg/ptracers: new version of ptracers pickup:
357      read meta file and write only fields which are needed to restart.
358      ( same logic as main pickup file ; also using pickupStrictlyMatch )
359    o pkg/seaice:
360      - add timescale for melting due to warm mixed layer as a means of
361        setting SEAICE_availHeatFrac more conveniently
362      - add a CPP-flag/runtime parameter check for flooding algorithm
363      - reformulated availHeat in seaice_growth.F to be independent of AREA
364    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
365      unit changes
366    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
367    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
368      SX vector computer.
369    o pkg/seaice:
370      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
371        seaice forcing fields can now be read only through pkg/exf
372      - removed some unused halos
373    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
374    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
375      or U/VICE from U/VWIND before computing U/VSTRESS
376    
377    checkpoint59k
378    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
379      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
380    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
381      all experiments pass when compile with un-initialised var. checking option.
382    o added pkg/salt_plume
383    o script to test restart (for now, in MITgcm_contrib/jmc_script)
384    o pkg/seaice: new read/write pickup version.
385      read meta file and write only fields which are needed to restart.
386      ( same logic as main pickup file ; also using pickupStrictlyMatch )
387    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
388    o lab_sea.hb87: modify the domain & update output.hb87.txt :
389      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
390      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
391      process. Fixed here by closing the domain at the Northern boundary.
392    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
393    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
394      a set of consecutive levels in/from a 3-D array.
395    o pkg/ptracers:
396      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
397      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
398    
399    checkpoint59j
400    o in pkgs: dic, obcs, offline, rbcs:
401      standard way to compute coeff. for time interpolation between 2 time reccords
402      which retains full precision (& make results less dependent on compiler).
403      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
404    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
405      packages instead of reading ice cover and wind speed separately
406    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
407     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
408      to allow to compile customized code before the update)
409    o cleaning-up:
410      - fix CPP instruction syntax in pkg/obcs
411      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
412        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
413      - fix some threads issue in IO parts.
414    o pkg/dic:
415      - add tons of "_d 0" (--> much better testreports !)
416       and then update outputs of tutorial_global_oce_biogeo
417    o pkg/mom_fluxform:
418      add a special version of momentum advection intended to conserve momentum
419      next to a bathymetry step or a coastline edge. (default = off = #undef)
420    o new read/write pickup version:
421      - for now, only implemented for main (mdsio) pickup file.
422      - write out only what is needed to restart; merge pickup_nh , pickup_ph
423        and main pickup together.
424      - read meta file; read only what is needed to restart; stop if a field
425        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
426        if it make sense (even if the restart is not perfect).
427      - if no meta file, assume that pickup to read corresponds exactly to
428        a pickup that would currently be written.
429      - read pickup written in the old format (until checkpoint59i) if it
430        recognizes an old meta file (no field-list).
431      - add a meta file in exp. which starts from a pickup: 2 cases:
432        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
433         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
434        b) a meta file describing the content of the associated pickup file
435         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
436    o pkg/mdsio & pkg/rw:
437      - new routine to read a meta file ; new set of routine to read
438        Multiple-fields file (with meta file).
439    o added open boundary conditions capability for seaice
440        HSNOW, HSALT, UICE, and VICE
441    
442    checkpoint59i
443    o adjoint:
444      * fix multiDimAdvection adjoint
445        (partial recomputation problem by TAF for fVerT(:,:,kDown)
446        and comlev1 size definition (maxpass vs. max. number of tracers)
447      * verification/global_ocean.90x45x15 adjoint now tests
448        NLFS and multiDimAdvection using DST3 (=30)
449      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
450    o pkg/kpp: add "_d 0" to real constant (if missing);
451      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
452      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
453    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
454      for internal parameters related to restart process (formerly from PARAMS.h)
455      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
456    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
457      as argument. (only atm2d & obcs write_pickup have not yet been updated)
458    o pkg/monitor:
459      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
460      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
461      - account for deep Atmosphere factor and density factor (anelastic)
462    o added open boundary conditions capability for seaice HEFF and AREA
463    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
464      thermodynamics
465      - requires a little reorganization, which affects the testreport results
466        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
467        so that now the conservative form is tested
468      - add a few comments
469    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
470    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
471    o add new diagnostics to seaice: advective, diffusive fluxes (only for
472      multidim-advection, for scheme 2 they are not filled) and transports,
473      thermodynamic growth rates
474    o change units of EmPmR (inside the code, + within coupling interface)
475      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
476      Affects results @ truncation level (cg2d match) and update output of
477       experiments: lab_sea(6), global_ocean.90x40x15(10),
478      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
479      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
480      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
481      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
482    
483    checkpoint59h
484    o pkg/exf:
485      - improve vectorization by moving if-statement out of loops in
486        exf_mapfields, exf_radiation
487      - exf_bulkformulae.F: introduce 2D fields and vectorize code
488    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
489    o testreport:
490      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
491        monitor & update offline_exf_seaice exp. output.
492      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
493    o pkg/seaice:
494      - bug fix in the evp solver: boundary conditions were affected be
495        masking of zMax/zMin (changes results)
496      - minor bug fix in boundary conditions in seaice_calc_strainrates
497        (changes results for no_slip)
498      - seaice_lsr.F: make interpolation of eta dependent on boundaries
499      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
500      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
501        stress formulation and no-slip boundary conditions
502    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
503      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
504    o pkg/seaice: a first HSALT time stepping equation has been checked in
505    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
506      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
507      without requiring DO-IF statements
508    o pkg/thsice:
509      use continuous power-law function for partition of energy between lateral
510      melting/freezing and thinning/thickening ; old code using step function
511      still available with #undef THSICE_FRACEN_POWERLAW
512      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
513    o testreport: change AD testing : check against results/output_adm.txt
514      using same scripts as for forward test.
515    
516    checkpoint59g
517    o adjoint testing: in preparation for changing testreport:
518      - output format: cost and grad written on separated lines
519      - ad output results in directory "results" (instead of "results_ad")
520    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
521    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
522    o pkg/ecco: allow user defined cost function contributions
523    o testreport:
524      Allow to choose (per experiment) the list of tested output variables
525       and the main variable (used to issue a pass/FAIL ) ;
526      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
527      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
528      Also modify printing of summary:
529       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
530       b) echo the list of tested variables in the individual summary.txt of
531          each experiment.
532    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
533      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
534      (but still depend on the tile decompostion of the domain).
535    o pkg/seaice: change a discretization detail to make the B-grid code
536      "more symmetric". This change is likely to remove all "ridges/leads" that
537      where quasi-aligned with the grid in B-grid solutions. It may also be
538      the solution to the stress coupling issues with the B-grid.
539    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
540      remove .cvsignore from input dir. (since testreport no longer run here).
541    o pkg/thsice:
542     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
543     - fix reshaping of sea-ice just after advection:
544       melt all the ice only if ice-volume is too small.
545     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
546       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
547     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
548    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
549      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
550    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
551      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
552      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
553      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
554      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
555      -> update output.txt
556    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
557     this affects truncation error: -> update output.txt of exp:
558      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
559      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
560    
561    checkpoint59f
562    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
563    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
564      a bounded range (in forward mode)
565    o pkg/ecco, ctrl, autodiff and mom_common:
566     internal parameter controls, completements of implementations
567    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
568    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
569      (not seem any difference in testing results).
570    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
571       at face corners.
572    o pkg/generic_advdiff:
573     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
574      loop range indices for computing vertical advection tendency
575      and do the calculation in the interior only (no overlap) ;
576      for now, only implemented for SOM advection (to save CPU time).
577     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
578    o exch2 adjoint
579      First set of changes:
580      - add exch2 hand-written adjoint templates
581      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
582        This will require cleanup in pkg/autodiff/*.F
583        (changed routines currently kept separate in verif. code/)
584      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
585        that used to hide exch2 or cubed-sphere specific code
586        (commented via 'cph-exch2')
587    o pkg/seaice
588      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
589    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
590       output of global_ocean.cs32x15.thsice .
591    
592    checkpoint59e
593    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
594      for B-grid vector (not yet tested) and C-grid vector (<- only used
595      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
596    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
597      (#ifdef ALLOW_SALT_PLUME)
598    o gather_2d/scatter_2d: removed halo regions
599    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
600      scheme and the corresponding test case (under front_relax dir). For now,
601      only available with Skew-flux form and not yet tested in realistic set-up.
602      adjoint: store directives updated, but gradient checks deteriorated,
603      so maybe GM/Redi adjoint is now broken.
604    o seaice adjoint
605      * add AREA, HEFF, HSNOW as control variable
606        (should not change lab_sea results)
607      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
608    o pkg/seaice:
609      * added computation of saltFlux in seaice_growth;
610        For time being, sea ice salinity is assumed constant
611        contribution of snow flooding to freshening of sea ice is neglected.
612        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
613        defaults to 0.0 in order to maintain backward compatibility.
614        Typical values for SEAICE_salinity are 4 to 10 g/kg.
615      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
616      * added SEAICE_availHeatFrac, which specifies fraction of surface level
617        heat content used to melt or grow ice
618      * commented out cap of HICE: it helps keep ice thinner
619      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
620      * applied OBCS T/S mask to HEFFM sea ice mask
621    
622    checkpoint59d
623    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
624     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
625     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
626    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
627     and change default value of parameter "GM_Small_Number";
628     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
629       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
630       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
631    o pkg/ecco: cost function when applying pkg/smooth to controls
632    o pkg/ctrl: add forcingPrecond run time parameter
633    o pkg/seaice:
634     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
635     - fix bug in metric terms of u-equation in LSR solver (implicit part),
636       changes verification/lab_sea
637     - rearrange implicit part of u-equation in LSR solver to make it easier to
638       read, understand, and debug. This causes changes at the truncation level.
639     - fix (serious) bug in the boundary conditions (sign error in the implicit
640       part) of the LSR solver. Changes all LSR results.
641     - fixed problem with HSNOW initialization to avoid thick snow when AREA
642       is initilized with small values - does not change lab_sea results.
643     - added HsnowFile initialization capability
644    o pkg/smooth: addition to model/src and pkg/ctrl so allow
645     initialization of pkg/smooth and application to control vector
646    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
647    o dependencies: pkg/profiles requires pkg/cal
648    o pkg/profiles:
649     - added option ALLOW_PROFILES_GENERICGRID
650         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
651         that interpolation information (grid points and coefficients) is provided
652         within the netcdf input files.
653         -> sample matlab scripts can be found in MITgcm_contrib/gael
654         that allow you to prepare netcdf input files.
655     - also modified: cleaner include statements, cleaner error print statements,
656       cleaner stops when error, and more tests of the netcdf input files consistency.
657  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.  o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
658  o pkg/seaice:  o pkg/seaice:
659   - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this   - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
# Line 137  o in FFIELDS.h: Line 787  o in FFIELDS.h:
787       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
788  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
789  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
790      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
791        are no longer updating the vertical diffusivity array
792        (passed as argument) but are (re-) setting those arrays.
793  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
794    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
795      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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