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revision 1.811 by mlosch, Wed May 9 14:32:05 2007 UTC revision 1.1043 by jmc, Fri Nov 21 16:47:29 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint61f
8    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
9      update results of global_ocean.cs32x15.icedyn test.
10    o move getcon.F from model/src to pkg/fizhi.
11    o pkg/exf: add parameter for extrapolation of temp up to the surface
12       and option to prevent negative evap (in bulk_largeyeager04 only).
13    o Prather Advection scheme: fix tracer conservation for divergent flow
14      (e.g., when using NonLin Free-Surface).
15    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
16    o gmredi (Visbeck-variable-K):
17     - add more parameters to Visbeck-variable-K.
18     - use a 5 points average for dSigmaR in Visbeck-K calculation
19       (more "homogenous": same stencil and same weights as in dSigmaH)
20     - update output of ideal_2D_oce experiment.
21    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
22      (#undef REAL4_IS_SLOW)
23     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
24       coordinate variable
25     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
26       (surface forcing fields), removes some of the functionality
27     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
28     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
29       probably not all: copy _RS surface flux fields to RL field before
30       calling DIAGNOSTICS_FILL
31     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
32       real*4 (CALL EXCH_*_RS) versions.
33     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
34       (generate new output).
35    
36    checkpoint61e
37    o gmredi (Visbeck-variable-K):
38      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
39      - change computation of Visbeck-K where Slope > Smax :        
40        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
41        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
42    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
43      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
44    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
45    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
46      does not become too large (to avoid precision problems in implicit-diffusion
47      solver); update ideal_2D_oce output.
48    o pkg ggl90:
49      - in ggl90_cal.F: compute only one set of visc/diff, used to
50        step forward TKE/T/S/momentum
51      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
52        have Prandlt =1)
53    o gmredi (fm07):
54      - add lower limit on Transition layer thickness + lower limit on 1/lambda
55      - allow to set few more params from data.gmredi
56    o pkg ggl90:
57          - add missing sqrt(2) factor in computation of mixing length
58            scale in ggl90_calc.F
59            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
60    
61    checkpoint61d
62    o adjoint modifs
63      - adapt to new field rhoInSitu
64      - allow to revert from StoreDynVars2D, StoreDynVars3D
65        to individual fields
66        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
67    o store 3-D (in-situ) density in commom block (DYNVARS.h)
68     - save 1 rho computation.
69     - no longer modify T & S inland when using down_slope pkg.
70    o gad_som : allow to switch to SOM advection for T & S without corresponding
71      pickup files (using new S/R: MDS_CHECK4FILE).
72    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
73      (for useSingleCpuIO to work in multi-threaded)
74    o pkg/shelfice:
75     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
76       with SHELFICEtopoFile in data.shelfice
77     - move code for reading ice shelf topography and modifying hFacC into separate
78       subroutines of the shelfice package
79     - separate initialisation of "fixed" and "variable" variables
80     - kTopC is not (yet) replaced by kSurfC, although this is possible
81    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
82    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
83      and rename:
84      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
85      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
86    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
87    
88    checkpoint61c
89    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
90      to add mass source/sink of fluid in the interior (3-D generalisation
91      of oceanic real-fresh water flux).
92    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
93    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
94    o new pkg: down_slope
95      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
96      - presently, modify T & S inland (dwnslp_calc_rho.F).
97        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
98      - implementation for ocean in P-coords not tested.
99      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
100    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
101      (to facilitate conversion of oceanic pkg to p-coordinate).
102    o change FIND_RHO to FIND_RHO_2D :
103      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
104    o new pkg: cheapaml
105    
106    checkpoint61b
107    o exch2:
108      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
109      - no longer depend on the order sequence (N,S,E,W).
110      - 3rd exchange no longer needed (tested with 24 tiles).
111      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
112      - exch_UV_A-grid readily available (but not yet tested).
113      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
114      (both are no longer needed) in exch_uv: no effect in forward run; but
115       get truncation error differences with adjoint exch.
116    o exch2:
117     - change index-bounds storage (moved from target to local tile,
118       more intuitive this way) ; rename/remove some variables.
119     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
120    
121    checkpoint61a
122    o exch2/matlab-topology-generator:
123      fix bug in index bounds for N-S internal exchange (hard to tell if this
124      had any effect on the solution).
125    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
126      is exceeded
127    o testreport: modify syntax of awk, so that it works also with
128      awk, and not only with nawk and gawk
129    
130    checkpoint61
131    o autodiff
132      Change default for TAF usage by removing argument '-nonew_arg'
133      This changes TAF subroutine argument list (ordering of active var.)
134      Omission of this flag leads to incompatibility w.r.t. TAMC
135      To restore TAMC-compatibility, need following modifs:
136      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
137      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
138      Tested TAF version is 1.9.22
139      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
140    
141    checkpoint60
142    --->>> This is the last checkpoint for which generating the adjoint
143    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
144    --->>> by default.
145    --->>> Future checkpoints will ommit this flag by default.
146    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
147    o pkg/grdchk: Add gradient check to etan0 perturbations.
148    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
149    o pkg/autodiff: more flexibility in zeroadj.
150      model/src: modifying do_oceanic_phys.F accordingly.
151    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
152    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
153      special setup of gmredi for which the adjoint is stable
154      enough for parameter optimization.
155    o bridging the gap between eddy stress and GM.
156      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
157          along with a change in CPP option (now ALLOW_EDDYPSI).
158      -> when using GM w/ GM_AdvForm:
159          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
160          is applied either in the tracer Eq. or in momentum Eq.
161          depending on data.gmredi (intro. GM_InMomAsStress).
162      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
163      The key modifications are in model/src/taueddy_external_forcing.F
164      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
165    
166    checkpoint59r
167    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
168      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
169      fix option to read coriolis(@ cell-corner) from files with CS-grid.
170    o pkg/mnc: add some attributes to standard 1D-coordinate variables
171    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
172      mass points, when using mnc for output
173      - add runtime parameter (missing_value, missing_value_int) to override
174        default (which is the value of getcon('UNDEF'))
175    o pkg/mnc: prepare mnc for the actual use of missing values with the
176      diagnostics package: small fix in mnc_cw_readwrite.template and more
177      initialisation of never used fields
178      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
179      versions
180    o pkg/thsice/thsice_ini_vars.F added default initial values so that
181      thermodynamics sea ice solver does not blow up when some initial fields
182      are missing.
183    o move from external_forcing_surf.F to ini_forcing.F
184      the p-coord. hack consisting in using pLoad to set phi0surf ;
185      update output of tutorial_global_oce_in_p (affected @ truncation level).
186    o Freshen up a bit hs94.1x64x5, notably:
187      remove rotationPeriod and tRef=5*0. (adjoint only), and add
188      exactConserv=.TRUE.
189    o pkg/generic_advdiff:
190      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
191      applies to files where Temperature & Salinity 2nd Order moments are used.
192    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
193      this uses a dynamically allocated internal state data structure
194      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
195      and requires a fortran 90 compiler
196    
197    checkpoint59q
198    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
199       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
200    o Refresh tutorial_global_oce_biogeo, notably:
201      - change bathymetry (put back seamounts in ACC, use hFacs)
202      - change EOS (POLY3 --> JMD95Z)
203      - use Bryan-Lewis vertical diffusivity
204      - use multidimensional advection
205      - remove old virtual virtual in dic pkg, now done through ptracer pkg
206      - change a couple of parameters in dic pkg
207    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
208    o pkg/obcs: change default to OBCSfixTopo = .true.,
209      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
210      - replace "debugMode" with "debugLevel .GE. debLevB"
211    o implementation of TAF directives for gchem,cfc,dic
212    o remove "exp5" (replaced by tutorial_deep_convection).
213    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
214      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
215      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
216      --> changes results in exp4, seaice_obcs
217    o tutorial_deep_convection :
218      update the set-up and increase resolution and domain size ; start
219      from pseudo initial conditions = output at t=120mn in order to see
220      something happening when running testreport.
221    o pkg/seaice: add os7mp as an advection scheme
222                  add check for advection schemes
223                  add a flag for restoring T and S underneath sea ice
224    o pkg/my82: add netcdf-support and diagnostics
225    o thsice pkg:
226      - Now hsMax limits snow height by turning it into ice following
227        flooding scheme (and now conserving energy)
228      - Slight rewriting of the formula in thsice_calc_thick.F
229      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
230      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
231    
232    checkpoint59p
233    o gchem / dic / cfc :
234      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
235      - add new parameter files: "data.dic" & "data.cfc" ;
236      - various re-arrangement in initialisation & header file ;
237      - fix tutorial_global_oce_biogeo for multi-threaded test.
238    o pkg/dic: test for "pickup_dic" file when restarting ;
239      if no pickup-file, can restart with a re-initialised pH (same as it did
240      before) providing pickupStrictlyMatch is set to False.
241    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
242      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
243    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
244      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
245    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
246     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
247       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
248    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
249       scheme to use for vorticty-term ;
250     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
251       (with default selectVortScheme, return to original discretisation)
252     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
253    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
254    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
255      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
256      also fix diagnostics VISCAHW & VISCA4W.
257    
258    checkpoint59o
259    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
260    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
261      move a few statemens out the main loop into separate loops
262    o pkg/shelfice:
263      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
264        (kg/m^2/s), does not break tests, because in verification/isomip,
265        rhoConstFresh=rhoConst (by accident)
266      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
267      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
268        new file model/src/seawater.F, so that they are available for all pkgs.
269      - convert potential temperature into in-situ temperature. This changes the
270        isomip tests => update tests
271    o add a flag writePickupAtEnd (default=true) to be able to suppress
272      writing a pickup at the last timestep
273    o tools/mpack-1.6 :
274      - disable automake (not working) and autoconf (not needed).
275      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
276        also cleaner with much less compilation warnings.
277    o pkg/profiles:
278      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
279      (for "less than 32 characters name" compiler requirement)
280    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
281      conditions that have a different sampling frequency than S/T/U/V obcs
282    o pkg/diagnostics (stats-diags):
283      - fix global Min/Max in case 1 processor get only empty tiles
284    o genmake2: replace (4 times)
285         make genmake_tc_1.o >> genmake_warnings 2>&1
286      with
287         COMM="$CC $CFLAGS -c genmake_tc_1.c"
288         echo $COMM >> genmake_warnings
289         $COMM >> genmake_warnings 2>&1
290      to make genmake2 always see the value of CC as specified in the optfile.
291    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
292      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
293      - modify verification advect_cs test to test SOM-advection on CS-grid.
294    o pkg/ctrl:
295      - Rewrite of ctrl_map_ini_ecco.F,
296        introducing a generic routine (ctrl_map_ini_gen.F).
297      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
298    
299    checkpoint59n
300    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
301      number in dedicate array "hdiag":
302      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
303        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
304      - many small changes (integer format) for large number of diagnostics
305      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
306        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
307    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
308      usingSphericalGrid, this allows to define the rotated grid coordinates
309      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
310      geographical coordinates according to the inverse of the rotation defined
311      by the Euler angles, so that Coriolis parameter and online-interpolation by
312      exf works with the geographical coordinates on XC/YC/XG/YG.
313      Naturally, this feature does not work with all packages, so some
314      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
315      profiles), because there the coordinates are assumed to be regular
316      spherical grid coordinates.
317    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
318      - introduce isopycnal diffusion coefficient control.
319    o tools/adjoint_options:
320      - additional control vector components.
321    o pkg/mnc: have mnc create marginally meaning full coordinate variables
322      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
323    o pkg/mypackage:
324      - add example of read/write pickup for state-var ;
325      - add entry points to the main code for state-vars diags & write-pickup.
326    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
327      transitions for useExfYearlyFields
328      - add new subroutine that determines the file to read from for
329        use*YearlyFields = .TRUE. and .FALSE.
330      - add a verification experiment to global_with_exf that tests
331        useExfYearlyFields with USE_EXF_INTERPOLATION defined
332    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
333      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
334      subroutines (which could be generated from a template, because they are
335      almost identical), for now they are included in obcs_prescribe_read.F for
336      simplicity
337    o pkg/exf:
338      - add a little more diagnostic to exf_interp_read (in analogy to
339        mds_read_field, can be turned off with debugLevel < debugLevA=1)
340      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
341        ugly but fast by unrolling short inner loops, inserting a unroll=8
342        directive in routine lagran, and splitting a loop and making do while the
343        outermost loop (the latter requires the intoduction of index arrays)
344    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
345    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
346      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
347    o verification/seaice_obcs: updated for restart test and latest options
348    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
349      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
350      for now this is only available for the C-grid code and also within
351      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
352    
353    checkpoint59m
354    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
355      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
356    o gad_som : fix flux output (& diagnostics) to have same units as other  
357      advection scheme fluxes (was previously multiplied by deltaT).  
358    o added verification/seaice_obcs both to test seaice open boundaries
359      and to provide an example matlab scrpt for generating them
360    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
361    o pkg/salt_plume: clean up salt_plume_frac.F to
362      remove redundancy in PlumeMethod 1 and 4
363    o pkg/kpp: added saltplume diagnostics
364    o pkg/obcs and pkg/seaice:
365      - do not set uice and vice to zero when OB*icefile are unspecified
366      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
367      - moved seaice tracer obcs after call to seaice_growth
368    o pkg/salt_plume: added various options for salt plume depth
369      criterion and for vertical distribution of the salt
370    
371    checkpoint59l
372    o pkg/ptracers: new version of ptracers pickup:
373      read meta file and write only fields which are needed to restart.
374      ( same logic as main pickup file ; also using pickupStrictlyMatch )
375    o pkg/seaice:
376      - add timescale for melting due to warm mixed layer as a means of
377        setting SEAICE_availHeatFrac more conveniently
378      - add a CPP-flag/runtime parameter check for flooding algorithm
379      - reformulated availHeat in seaice_growth.F to be independent of AREA
380    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
381      unit changes
382    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
383    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
384      SX vector computer.
385    o pkg/seaice:
386      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
387        seaice forcing fields can now be read only through pkg/exf
388      - removed some unused halos
389    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
390    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
391      or U/VICE from U/VWIND before computing U/VSTRESS
392    
393    checkpoint59k
394    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
395      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
396    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
397      all experiments pass when compile with un-initialised var. checking option.
398    o added pkg/salt_plume
399    o script to test restart (for now, in MITgcm_contrib/jmc_script)
400    o pkg/seaice: new read/write pickup version.
401      read meta file and write only fields which are needed to restart.
402      ( same logic as main pickup file ; also using pickupStrictlyMatch )
403    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
404    o lab_sea.hb87: modify the domain & update output.hb87.txt :
405      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
406      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
407      process. Fixed here by closing the domain at the Northern boundary.
408    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
409    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
410      a set of consecutive levels in/from a 3-D array.
411    o pkg/ptracers:
412      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
413      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
414    
415    checkpoint59j
416    o in pkgs: dic, obcs, offline, rbcs:
417      standard way to compute coeff. for time interpolation between 2 time reccords
418      which retains full precision (& make results less dependent on compiler).
419      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
420    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
421      packages instead of reading ice cover and wind speed separately
422    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
423     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
424      to allow to compile customized code before the update)
425    o cleaning-up:
426      - fix CPP instruction syntax in pkg/obcs
427      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
428        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
429      - fix some threads issue in IO parts.
430    o pkg/dic:
431      - add tons of "_d 0" (--> much better testreports !)
432       and then update outputs of tutorial_global_oce_biogeo
433    o pkg/mom_fluxform:
434      add a special version of momentum advection intended to conserve momentum
435      next to a bathymetry step or a coastline edge. (default = off = #undef)
436    o new read/write pickup version:
437      - for now, only implemented for main (mdsio) pickup file.
438      - write out only what is needed to restart; merge pickup_nh , pickup_ph
439        and main pickup together.
440      - read meta file; read only what is needed to restart; stop if a field
441        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
442        if it make sense (even if the restart is not perfect).
443      - if no meta file, assume that pickup to read corresponds exactly to
444        a pickup that would currently be written.
445      - read pickup written in the old format (until checkpoint59i) if it
446        recognizes an old meta file (no field-list).
447      - add a meta file in exp. which starts from a pickup: 2 cases:
448        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
449         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
450        b) a meta file describing the content of the associated pickup file
451         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
452    o pkg/mdsio & pkg/rw:
453      - new routine to read a meta file ; new set of routine to read
454        Multiple-fields file (with meta file).
455    o added open boundary conditions capability for seaice
456        HSNOW, HSALT, UICE, and VICE
457    
458    checkpoint59i
459    o adjoint:
460      * fix multiDimAdvection adjoint
461        (partial recomputation problem by TAF for fVerT(:,:,kDown)
462        and comlev1 size definition (maxpass vs. max. number of tracers)
463      * verification/global_ocean.90x45x15 adjoint now tests
464        NLFS and multiDimAdvection using DST3 (=30)
465      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
466    o pkg/kpp: add "_d 0" to real constant (if missing);
467      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
468      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
469    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
470      for internal parameters related to restart process (formerly from PARAMS.h)
471      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
472    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
473      as argument. (only atm2d & obcs write_pickup have not yet been updated)
474    o pkg/monitor:
475      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
476      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
477      - account for deep Atmosphere factor and density factor (anelastic)
478    o added open boundary conditions capability for seaice HEFF and AREA
479    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
480      thermodynamics
481      - requires a little reorganization, which affects the testreport results
482        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
483        so that now the conservative form is tested
484      - add a few comments
485    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
486    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
487    o add new diagnostics to seaice: advective, diffusive fluxes (only for
488      multidim-advection, for scheme 2 they are not filled) and transports,
489      thermodynamic growth rates
490    o change units of EmPmR (inside the code, + within coupling interface)
491      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
492      Affects results @ truncation level (cg2d match) and update output of
493       experiments: lab_sea(6), global_ocean.90x40x15(10),
494      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
495      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
496      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
497      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
498    
499    checkpoint59h
500    o pkg/exf:
501      - improve vectorization by moving if-statement out of loops in
502        exf_mapfields, exf_radiation
503      - exf_bulkformulae.F: introduce 2D fields and vectorize code
504    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
505    o testreport:
506      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
507        monitor & update offline_exf_seaice exp. output.
508      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
509    o pkg/seaice:
510      - bug fix in the evp solver: boundary conditions were affected be
511        masking of zMax/zMin (changes results)
512      - minor bug fix in boundary conditions in seaice_calc_strainrates
513        (changes results for no_slip)
514      - seaice_lsr.F: make interpolation of eta dependent on boundaries
515      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
516      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
517        stress formulation and no-slip boundary conditions
518    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
519      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
520    o pkg/seaice: a first HSALT time stepping equation has been checked in
521    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
522      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
523      without requiring DO-IF statements
524    o pkg/thsice:
525      use continuous power-law function for partition of energy between lateral
526      melting/freezing and thinning/thickening ; old code using step function
527      still available with #undef THSICE_FRACEN_POWERLAW
528      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
529    o testreport: change AD testing : check against results/output_adm.txt
530      using same scripts as for forward test.
531    
532    checkpoint59g
533    o adjoint testing: in preparation for changing testreport:
534      - output format: cost and grad written on separated lines
535      - ad output results in directory "results" (instead of "results_ad")
536    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
537    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
538    o pkg/ecco: allow user defined cost function contributions
539    o testreport:
540      Allow to choose (per experiment) the list of tested output variables
541       and the main variable (used to issue a pass/FAIL ) ;
542      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
543      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
544      Also modify printing of summary:
545       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
546       b) echo the list of tested variables in the individual summary.txt of
547          each experiment.
548    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
549      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
550      (but still depend on the tile decompostion of the domain).
551    o pkg/seaice: change a discretization detail to make the B-grid code
552      "more symmetric". This change is likely to remove all "ridges/leads" that
553      where quasi-aligned with the grid in B-grid solutions. It may also be
554      the solution to the stress coupling issues with the B-grid.
555    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
556      remove .cvsignore from input dir. (since testreport no longer run here).
557    o pkg/thsice:
558     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
559     - fix reshaping of sea-ice just after advection:
560       melt all the ice only if ice-volume is too small.
561     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
562       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
563     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
564    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
565      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
566    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
567      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
568      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
569      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
570      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
571      -> update output.txt
572    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
573     this affects truncation error: -> update output.txt of exp:
574      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
575      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
576    
577    checkpoint59f
578    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
579    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
580      a bounded range (in forward mode)
581    o pkg/ecco, ctrl, autodiff and mom_common:
582     internal parameter controls, completements of implementations
583    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
584    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
585      (not seem any difference in testing results).
586    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
587       at face corners.
588    o pkg/generic_advdiff:
589     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
590      loop range indices for computing vertical advection tendency
591      and do the calculation in the interior only (no overlap) ;
592      for now, only implemented for SOM advection (to save CPU time).
593     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
594    o exch2 adjoint
595      First set of changes:
596      - add exch2 hand-written adjoint templates
597      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
598        This will require cleanup in pkg/autodiff/*.F
599        (changed routines currently kept separate in verif. code/)
600      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
601        that used to hide exch2 or cubed-sphere specific code
602        (commented via 'cph-exch2')
603    o pkg/seaice
604      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
605    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
606       output of global_ocean.cs32x15.thsice .
607    
608    checkpoint59e
609    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
610      for B-grid vector (not yet tested) and C-grid vector (<- only used
611      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
612    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
613      (#ifdef ALLOW_SALT_PLUME)
614    o gather_2d/scatter_2d: removed halo regions
615    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
616      scheme and the corresponding test case (under front_relax dir). For now,
617      only available with Skew-flux form and not yet tested in realistic set-up.
618      adjoint: store directives updated, but gradient checks deteriorated,
619      so maybe GM/Redi adjoint is now broken.
620    o seaice adjoint
621      * add AREA, HEFF, HSNOW as control variable
622        (should not change lab_sea results)
623      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
624    o pkg/seaice:
625      * added computation of saltFlux in seaice_growth;
626        For time being, sea ice salinity is assumed constant
627        contribution of snow flooding to freshening of sea ice is neglected.
628        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
629        defaults to 0.0 in order to maintain backward compatibility.
630        Typical values for SEAICE_salinity are 4 to 10 g/kg.
631      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
632      * added SEAICE_availHeatFrac, which specifies fraction of surface level
633        heat content used to melt or grow ice
634      * commented out cap of HICE: it helps keep ice thinner
635      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
636      * applied OBCS T/S mask to HEFFM sea ice mask
637    
638    checkpoint59d
639    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
640     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
641     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
642    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
643     and change default value of parameter "GM_Small_Number";
644     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
645       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
646       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
647    o pkg/ecco: cost function when applying pkg/smooth to controls
648    o pkg/ctrl: add forcingPrecond run time parameter
649    o pkg/seaice:
650     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
651     - fix bug in metric terms of u-equation in LSR solver (implicit part),
652       changes verification/lab_sea
653     - rearrange implicit part of u-equation in LSR solver to make it easier to
654       read, understand, and debug. This causes changes at the truncation level.
655     - fix (serious) bug in the boundary conditions (sign error in the implicit
656       part) of the LSR solver. Changes all LSR results.
657     - fixed problem with HSNOW initialization to avoid thick snow when AREA
658       is initilized with small values - does not change lab_sea results.
659     - added HsnowFile initialization capability
660    o pkg/smooth: addition to model/src and pkg/ctrl so allow
661     initialization of pkg/smooth and application to control vector
662    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
663    o dependencies: pkg/profiles requires pkg/cal
664    o pkg/profiles:
665     - added option ALLOW_PROFILES_GENERICGRID
666         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
667         that interpolation information (grid points and coefficients) is provided
668         within the netcdf input files.
669         -> sample matlab scripts can be found in MITgcm_contrib/gael
670         that allow you to prepare netcdf input files.
671     - also modified: cleaner include statements, cleaner error print statements,
672       cleaner stops when error, and more tests of the netcdf input files consistency.
673    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
674    o pkg/seaice:
675     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
676       requires a new routine: seaice_diagnostics_fill.F
677     - make sure that seaice does not move if not forced (pressure replacement
678       method, Hibler and Ip, 1995), changes results
679     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
680     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
681       It is turned off by default (=-1.), because it changes the results.
682     - make it possible to read AREA from a file, too.
683    
684    checkpoint59c
685    o add S/R and diagnostics for oceanic mixed-layer depth
686    o move GMRedi call after all vertical mixing schemes (including KPP)
687    o pkg/thsice:
688     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
689      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
690    o pkg/obcs:
691     - bug fix for balance code
692    o pkg/seaice:
693      - allow values of SEAICE_elasticParm > 1
694      - add new parameter SEAICE_evpTauRelax as an alternative
695        to SEAICE_elasticParm
696      - make lsr boundary conditions free slip (by default), changes result
697      - add code for no slip boundary conditions for lsr
698      - set minimum of zeta to zero (and not 4e8) (changes results)
699      - add a cap on AREA after advecting AREA if seaice_growth is not called
700    o change calculation of Visbeck K:
701      - no longer depend on tapering scheme; instead, compute slope (limited
702        by GM_maxSlope). this is equivalent to what was comuted before with
703        clipping or linear tappering.
704      - fix vertical averaging (wrong by 1/2 level)
705      - leave the old version (but will not be maintained) within
706        #ifdef OLD_VISBECK_CALC / #endif
707      - update output of exp. ideal_2D_oce
708    o change error catch in calc_r_star to improve vectorization
709    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
710      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
711    o adjoint:
712      Re-organized adjoint checkpointing according to Matt Mazloff
713      (but with modifs/completions/cleanups)
714      Storing is now bundled into large arrays to optimized I/O
715      (and second step in cleanup of the_main_loop)
716    
717    checkpoint59b
718    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
719      - export/import (between ocean & coupler) fields needed for ocean DIC.
720    o pkg/seaice:
721      - get rid of three more exchanges seaice_calc_viscosities (required
722        different loop boundaries in seaice_lsr and seaice_ocean_stress)
723      - bug fix in seaice_ocean_stress (update of lab_sea required)
724      - reduce loop boundaries to necessary minimum also in seaice_evp
725      - go back to the old way of computing deltaC/Z as the adjoint likes that
726        better
727    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
728      passive tracer to an Age Tracer) + update output.txt
729    o pkg/exf:
730      - implement A-grid / C-grid selection for wind-stress input files.
731      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
732      for now, in exf_bulk_largeyeager04.F only :
733      - change implementation for case where windspeed + 2. components wind-stress
734        are read-in. AND use rhoConstFresh to convert evap.
735    o pkg/seaice:
736      - use correct EXCH_UV for wind-forcing (on A-grid).
737      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
738        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
739    o pkg/exf:
740      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
741      EXF_INTERPOLATION:
742      - merge global_with_exf/code version of exf_interp_read.F
743        to the main code ;
744      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
745        reading the file ; Important: This options needs to be defined to recover
746        previous code.
747        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
748      - no longer loose real*8 precision along the way when using exf_iprec=64.
749  o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)  o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
750      - change discretisation of evp-solver in order to avoid another exchange
751        (changes lab_sea) and clean up a little
752      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
753        help the adjoint (this also changes the results slightly)
754      - add a few "_d 0" where they had been missing in seaice_evp.F
755      - cleaning up: remove unused seaice_calc_rhs.F
756  o pkg/exf: some cleaning-up:  o pkg/exf: some cleaning-up:
757    - change various "constants" into runtime parameters    - change various "constants" into runtime parameters
758    - cleaned-up Large&Yeager04 routine which should eventually    - cleaned-up Large&Yeager04 routine which should eventually
# Line 18  o pkg/exf: some cleaning-up: Line 766  o pkg/exf: some cleaning-up:
766  o pkg/thsice:  o pkg/thsice:
767   fix few little problems, in thsice_calc_thickn.F:   fix few little problems, in thsice_calc_thickn.F:
768    - growth vertically (and not laterally) if iceFrac == iceMaskMax    - growth vertically (and not laterally) if iceFrac == iceMaskMax
769    - melt laterally only if hIce < hThinIce (as the comments say)    - melt only laterally if hIce < hThinIce (as the comments say)
770    and in thsice_extend.F:    and in thsice_extend.F:
771    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
772    - start to form ice as soon as the minimum ice-volume is reachable.    - start to form ice as soon as the minimum ice-volume is reachable.
# Line 34  o pkg/kpp Line 782  o pkg/kpp
782  o pkg/seaice  o pkg/seaice
783   - check for inconsistent evp parameter/cpp-flag combination   - check for inconsistent evp parameter/cpp-flag combination
784   - remove leftover errIO flat for obsolete name list error handling   - remove leftover errIO flat for obsolete name list error handling
785    o OpenAD
786     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
787    
788  checkpoint59a  checkpoint59a
789  o pkg/seaice: some parameter clarifications and a little bit of clean up  o pkg/seaice: some parameter clarifications and a little bit of clean up
# Line 53  o in FFIELDS.h: Line 803  o in FFIELDS.h:
803       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
804  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
805  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
806      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
807        are no longer updating the vertical diffusivity array
808        (passed as argument) but are (re-) setting those arrays.
809  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
810    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
811      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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