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revision 1.801 by jmc, Fri Apr 27 16:33:53 2007 UTC revision 1.1033 by jmc, Thu Oct 23 15:31:34 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint61e
8    o gmredi (Visbeck-variable-K):
9      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
10      - change computation of Visbeck-K where Slope > Smax :        
11        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
12        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
13    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
14      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
15    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
16    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
17      does not become too large (to avoid precision problems in implicit-diffusion
18      solver); update ideal_2D_oce output.
19    o pkg ggl90:
20      - in ggl90_cal.F: compute only one set of visc/diff, used to
21        step forward TKE/T/S/momentum
22      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
23        have Prandlt =1)
24    o gmredi (fm07):
25      - add lower limit on Transition layer thickness + lower limit on 1/lambda
26      - allow to set few more params from data.gmredi
27    o pkg ggl90:
28          - add missing sqrt(2) factor in computation of mixing length
29            scale in ggl90_calc.F
30            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
31    
32    checkpoint61d
33    o adjoint modifs
34      - adapt to new field rhoInSitu
35      - allow to revert from StoreDynVars2D, StoreDynVars3D
36        to individual fields
37        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
38    o store 3-D (in-situ) density in commom block (DYNVARS.h)
39     - save 1 rho computation.
40     - no longer modify T & S inland when using down_slope pkg.
41    o gad_som : allow to switch to SOM advection for T & S without corresponding
42      pickup files (using new S/R: MDS_CHECK4FILE).
43    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
44      (for useSingleCpuIO to work in multi-threaded)
45    o pkg/shelfice:
46     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
47       with SHELFICEtopoFile in data.shelfice
48     - move code for reading ice shelf topography and modifying hFacC into separate
49       subroutines of the shelfice package
50     - separate initialisation of "fixed" and "variable" variables
51     - kTopC is not (yet) replaced by kSurfC, although this is possible
52    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
53    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
54      and rename:
55      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
56      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
57    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
58    
59    checkpoint61c
60    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
61      to add mass source/sink of fluid in the interior (3-D generalisation
62      of oceanic real-fresh water flux).
63    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
64    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
65    o new pkg: down_slope
66      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
67      - presently, modify T & S inland (dwnslp_calc_rho.F).
68        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
69      - implementation for ocean in P-coords not tested.
70      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
71    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
72      (to facilitate conversion of oceanic pkg to p-coordinate).
73    o change FIND_RHO to FIND_RHO_2D :
74      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
75    o new pkg: cheapaml
76    
77    checkpoint61b
78    o exch2:
79      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
80      - no longer depend on the order sequence (N,S,E,W).
81      - 3rd exchange no longer needed (tested with 24 tiles).
82      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
83      - exch_UV_A-grid readily available (but not yet tested).
84      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
85      (both are no longer needed) in exch_uv: no effect in forward run; but
86       get truncation error differences with adjoint exch.
87    o exch2:
88     - change index-bounds storage (moved from target to local tile,
89       more intuitive this way) ; rename/remove some variables.
90     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
91    
92    checkpoint61a
93    o exch2/matlab-topology-generator:
94      fix bug in index bounds for N-S internal exchange (hard to tell if this
95      had any effect on the solution).
96    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
97      is exceeded
98    o testreport: modify syntax of awk, so that it works also with
99      awk, and not only with nawk and gawk
100    
101    checkpoint61
102    o autodiff
103      Change default for TAF usage by removing argument '-nonew_arg'
104      This changes TAF subroutine argument list (ordering of active var.)
105      Omission of this flag leads to incompatibility w.r.t. TAMC
106      To restore TAMC-compatibility, need following modifs:
107      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
108      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
109      Tested TAF version is 1.9.22
110      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
111    
112    checkpoint60
113    --->>> This is the last checkpoint for which generating the adjoint
114    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
115    --->>> by default.
116    --->>> Future checkpoints will ommit this flag by default.
117    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
118    o pkg/grdchk: Add gradient check to etan0 perturbations.
119    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
120    o pkg/autodiff: more flexibility in zeroadj.
121      model/src: modifying do_oceanic_phys.F accordingly.
122    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
123    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
124      special setup of gmredi for which the adjoint is stable
125      enough for parameter optimization.
126    o bridging the gap between eddy stress and GM.
127      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
128          along with a change in CPP option (now ALLOW_EDDYPSI).
129      -> when using GM w/ GM_AdvForm:
130          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
131          is applied either in the tracer Eq. or in momentum Eq.
132          depending on data.gmredi (intro. GM_InMomAsStress).
133      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
134      The key modifications are in model/src/taueddy_external_forcing.F
135      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
136    
137    checkpoint59r
138    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
139      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
140      fix option to read coriolis(@ cell-corner) from files with CS-grid.
141    o pkg/mnc: add some attributes to standard 1D-coordinate variables
142    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
143      mass points, when using mnc for output
144      - add runtime parameter (missing_value, missing_value_int) to override
145        default (which is the value of getcon('UNDEF'))
146    o pkg/mnc: prepare mnc for the actual use of missing values with the
147      diagnostics package: small fix in mnc_cw_readwrite.template and more
148      initialisation of never used fields
149      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
150      versions
151    o pkg/thsice/thsice_ini_vars.F added default initial values so that
152      thermodynamics sea ice solver does not blow up when some initial fields
153      are missing.
154    o move from external_forcing_surf.F to ini_forcing.F
155      the p-coord. hack consisting in using pLoad to set phi0surf ;
156      update output of tutorial_global_oce_in_p (affected @ truncation level).
157    o Freshen up a bit hs94.1x64x5, notably:
158      remove rotationPeriod and tRef=5*0. (adjoint only), and add
159      exactConserv=.TRUE.
160    o pkg/generic_advdiff:
161      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
162      applies to files where Temperature & Salinity 2nd Order moments are used.
163    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
164      this uses a dynamically allocated internal state data structure
165      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
166      and requires a fortran 90 compiler
167    
168    checkpoint59q
169    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
170       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
171    o Refresh tutorial_global_oce_biogeo, notably:
172      - change bathymetry (put back seamounts in ACC, use hFacs)
173      - change EOS (POLY3 --> JMD95Z)
174      - use Bryan-Lewis vertical diffusivity
175      - use multidimensional advection
176      - remove old virtual virtual in dic pkg, now done through ptracer pkg
177      - change a couple of parameters in dic pkg
178    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
179    o pkg/obcs: change default to OBCSfixTopo = .true.,
180      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
181      - replace "debugMode" with "debugLevel .GE. debLevB"
182    o implementation of TAF directives for gchem,cfc,dic
183    o remove "exp5" (replaced by tutorial_deep_convection).
184    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
185      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
186      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
187      --> changes results in exp4, seaice_obcs
188    o tutorial_deep_convection :
189      update the set-up and increase resolution and domain size ; start
190      from pseudo initial conditions = output at t=120mn in order to see
191      something happening when running testreport.
192    o pkg/seaice: add os7mp as an advection scheme
193                  add check for advection schemes
194                  add a flag for restoring T and S underneath sea ice
195    o pkg/my82: add netcdf-support and diagnostics
196    o thsice pkg:
197      - Now hsMax limits snow height by turning it into ice following
198        flooding scheme (and now conserving energy)
199      - Slight rewriting of the formula in thsice_calc_thick.F
200      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
201      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
202    
203    checkpoint59p
204    o gchem / dic / cfc :
205      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
206      - add new parameter files: "data.dic" & "data.cfc" ;
207      - various re-arrangement in initialisation & header file ;
208      - fix tutorial_global_oce_biogeo for multi-threaded test.
209    o pkg/dic: test for "pickup_dic" file when restarting ;
210      if no pickup-file, can restart with a re-initialised pH (same as it did
211      before) providing pickupStrictlyMatch is set to False.
212    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
213      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
214    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
215      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
216    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
217     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
218       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
219    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
220       scheme to use for vorticty-term ;
221     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
222       (with default selectVortScheme, return to original discretisation)
223     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
224    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
225    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
226      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
227      also fix diagnostics VISCAHW & VISCA4W.
228    
229    checkpoint59o
230    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
231    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
232      move a few statemens out the main loop into separate loops
233    o pkg/shelfice:
234      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
235        (kg/m^2/s), does not break tests, because in verification/isomip,
236        rhoConstFresh=rhoConst (by accident)
237      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
238      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
239        new file model/src/seawater.F, so that they are available for all pkgs.
240      - convert potential temperature into in-situ temperature. This changes the
241        isomip tests => update tests
242    o add a flag writePickupAtEnd (default=true) to be able to suppress
243      writing a pickup at the last timestep
244    o tools/mpack-1.6 :
245      - disable automake (not working) and autoconf (not needed).
246      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
247        also cleaner with much less compilation warnings.
248    o pkg/profiles:
249      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
250      (for "less than 32 characters name" compiler requirement)
251    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
252      conditions that have a different sampling frequency than S/T/U/V obcs
253    o pkg/diagnostics (stats-diags):
254      - fix global Min/Max in case 1 processor get only empty tiles
255    o genmake2: replace (4 times)
256         make genmake_tc_1.o >> genmake_warnings 2>&1
257      with
258         COMM="$CC $CFLAGS -c genmake_tc_1.c"
259         echo $COMM >> genmake_warnings
260         $COMM >> genmake_warnings 2>&1
261      to make genmake2 always see the value of CC as specified in the optfile.
262    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
263      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
264      - modify verification advect_cs test to test SOM-advection on CS-grid.
265    o pkg/ctrl:
266      - Rewrite of ctrl_map_ini_ecco.F,
267        introducing a generic routine (ctrl_map_ini_gen.F).
268      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
269    
270    checkpoint59n
271    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
272      number in dedicate array "hdiag":
273      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
274        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
275      - many small changes (integer format) for large number of diagnostics
276      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
277        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
278    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
279      usingSphericalGrid, this allows to define the rotated grid coordinates
280      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
281      geographical coordinates according to the inverse of the rotation defined
282      by the Euler angles, so that Coriolis parameter and online-interpolation by
283      exf works with the geographical coordinates on XC/YC/XG/YG.
284      Naturally, this feature does not work with all packages, so some
285      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
286      profiles), because there the coordinates are assumed to be regular
287      spherical grid coordinates.
288    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
289      - introduce isopycnal diffusion coefficient control.
290    o tools/adjoint_options:
291      - additional control vector components.
292    o pkg/mnc: have mnc create marginally meaning full coordinate variables
293      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
294    o pkg/mypackage:
295      - add example of read/write pickup for state-var ;
296      - add entry points to the main code for state-vars diags & write-pickup.
297    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
298      transitions for useExfYearlyFields
299      - add new subroutine that determines the file to read from for
300        use*YearlyFields = .TRUE. and .FALSE.
301      - add a verification experiment to global_with_exf that tests
302        useExfYearlyFields with USE_EXF_INTERPOLATION defined
303    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
304      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
305      subroutines (which could be generated from a template, because they are
306      almost identical), for now they are included in obcs_prescribe_read.F for
307      simplicity
308    o pkg/exf:
309      - add a little more diagnostic to exf_interp_read (in analogy to
310        mds_read_field, can be turned off with debugLevel < debugLevA=1)
311      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
312        ugly but fast by unrolling short inner loops, inserting a unroll=8
313        directive in routine lagran, and splitting a loop and making do while the
314        outermost loop (the latter requires the intoduction of index arrays)
315    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
316    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
317      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
318    o verification/seaice_obcs: updated for restart test and latest options
319    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
320      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
321      for now this is only available for the C-grid code and also within
322      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
323    
324    checkpoint59m
325    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
326      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
327    o gad_som : fix flux output (& diagnostics) to have same units as other  
328      advection scheme fluxes (was previously multiplied by deltaT).  
329    o added verification/seaice_obcs both to test seaice open boundaries
330      and to provide an example matlab scrpt for generating them
331    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
332    o pkg/salt_plume: clean up salt_plume_frac.F to
333      remove redundancy in PlumeMethod 1 and 4
334    o pkg/kpp: added saltplume diagnostics
335    o pkg/obcs and pkg/seaice:
336      - do not set uice and vice to zero when OB*icefile are unspecified
337      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
338      - moved seaice tracer obcs after call to seaice_growth
339    o pkg/salt_plume: added various options for salt plume depth
340      criterion and for vertical distribution of the salt
341    
342    checkpoint59l
343    o pkg/ptracers: new version of ptracers pickup:
344      read meta file and write only fields which are needed to restart.
345      ( same logic as main pickup file ; also using pickupStrictlyMatch )
346    o pkg/seaice:
347      - add timescale for melting due to warm mixed layer as a means of
348        setting SEAICE_availHeatFrac more conveniently
349      - add a CPP-flag/runtime parameter check for flooding algorithm
350      - reformulated availHeat in seaice_growth.F to be independent of AREA
351    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
352      unit changes
353    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
354    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
355      SX vector computer.
356    o pkg/seaice:
357      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
358        seaice forcing fields can now be read only through pkg/exf
359      - removed some unused halos
360    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
361    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
362      or U/VICE from U/VWIND before computing U/VSTRESS
363    
364    checkpoint59k
365    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
366      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
367    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
368      all experiments pass when compile with un-initialised var. checking option.
369    o added pkg/salt_plume
370    o script to test restart (for now, in MITgcm_contrib/jmc_script)
371    o pkg/seaice: new read/write pickup version.
372      read meta file and write only fields which are needed to restart.
373      ( same logic as main pickup file ; also using pickupStrictlyMatch )
374    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
375    o lab_sea.hb87: modify the domain & update output.hb87.txt :
376      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
377      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
378      process. Fixed here by closing the domain at the Northern boundary.
379    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
380    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
381      a set of consecutive levels in/from a 3-D array.
382    o pkg/ptracers:
383      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
384      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
385    
386    checkpoint59j
387    o in pkgs: dic, obcs, offline, rbcs:
388      standard way to compute coeff. for time interpolation between 2 time reccords
389      which retains full precision (& make results less dependent on compiler).
390      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
391    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
392      packages instead of reading ice cover and wind speed separately
393    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
394     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
395      to allow to compile customized code before the update)
396    o cleaning-up:
397      - fix CPP instruction syntax in pkg/obcs
398      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
399        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
400      - fix some threads issue in IO parts.
401    o pkg/dic:
402      - add tons of "_d 0" (--> much better testreports !)
403       and then update outputs of tutorial_global_oce_biogeo
404    o pkg/mom_fluxform:
405      add a special version of momentum advection intended to conserve momentum
406      next to a bathymetry step or a coastline edge. (default = off = #undef)
407    o new read/write pickup version:
408      - for now, only implemented for main (mdsio) pickup file.
409      - write out only what is needed to restart; merge pickup_nh , pickup_ph
410        and main pickup together.
411      - read meta file; read only what is needed to restart; stop if a field
412        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
413        if it make sense (even if the restart is not perfect).
414      - if no meta file, assume that pickup to read corresponds exactly to
415        a pickup that would currently be written.
416      - read pickup written in the old format (until checkpoint59i) if it
417        recognizes an old meta file (no field-list).
418      - add a meta file in exp. which starts from a pickup: 2 cases:
419        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
420         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
421        b) a meta file describing the content of the associated pickup file
422         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
423    o pkg/mdsio & pkg/rw:
424      - new routine to read a meta file ; new set of routine to read
425        Multiple-fields file (with meta file).
426    o added open boundary conditions capability for seaice
427        HSNOW, HSALT, UICE, and VICE
428    
429    checkpoint59i
430    o adjoint:
431      * fix multiDimAdvection adjoint
432        (partial recomputation problem by TAF for fVerT(:,:,kDown)
433        and comlev1 size definition (maxpass vs. max. number of tracers)
434      * verification/global_ocean.90x45x15 adjoint now tests
435        NLFS and multiDimAdvection using DST3 (=30)
436      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
437    o pkg/kpp: add "_d 0" to real constant (if missing);
438      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
439      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
440    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
441      for internal parameters related to restart process (formerly from PARAMS.h)
442      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
443    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
444      as argument. (only atm2d & obcs write_pickup have not yet been updated)
445    o pkg/monitor:
446      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
447      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
448      - account for deep Atmosphere factor and density factor (anelastic)
449    o added open boundary conditions capability for seaice HEFF and AREA
450    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
451      thermodynamics
452      - requires a little reorganization, which affects the testreport results
453        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
454        so that now the conservative form is tested
455      - add a few comments
456    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
457    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
458    o add new diagnostics to seaice: advective, diffusive fluxes (only for
459      multidim-advection, for scheme 2 they are not filled) and transports,
460      thermodynamic growth rates
461    o change units of EmPmR (inside the code, + within coupling interface)
462      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
463      Affects results @ truncation level (cg2d match) and update output of
464       experiments: lab_sea(6), global_ocean.90x40x15(10),
465      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
466      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
467      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
468      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
469    
470    checkpoint59h
471    o pkg/exf:
472      - improve vectorization by moving if-statement out of loops in
473        exf_mapfields, exf_radiation
474      - exf_bulkformulae.F: introduce 2D fields and vectorize code
475    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
476    o testreport:
477      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
478        monitor & update offline_exf_seaice exp. output.
479      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
480    o pkg/seaice:
481      - bug fix in the evp solver: boundary conditions were affected be
482        masking of zMax/zMin (changes results)
483      - minor bug fix in boundary conditions in seaice_calc_strainrates
484        (changes results for no_slip)
485      - seaice_lsr.F: make interpolation of eta dependent on boundaries
486      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
487      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
488        stress formulation and no-slip boundary conditions
489    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
490      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
491    o pkg/seaice: a first HSALT time stepping equation has been checked in
492    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
493      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
494      without requiring DO-IF statements
495    o pkg/thsice:
496      use continuous power-law function for partition of energy between lateral
497      melting/freezing and thinning/thickening ; old code using step function
498      still available with #undef THSICE_FRACEN_POWERLAW
499      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
500    o testreport: change AD testing : check against results/output_adm.txt
501      using same scripts as for forward test.
502    
503    checkpoint59g
504    o adjoint testing: in preparation for changing testreport:
505      - output format: cost and grad written on separated lines
506      - ad output results in directory "results" (instead of "results_ad")
507    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
508    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
509    o pkg/ecco: allow user defined cost function contributions
510    o testreport:
511      Allow to choose (per experiment) the list of tested output variables
512       and the main variable (used to issue a pass/FAIL ) ;
513      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
514      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
515      Also modify printing of summary:
516       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
517       b) echo the list of tested variables in the individual summary.txt of
518          each experiment.
519    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
520      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
521      (but still depend on the tile decompostion of the domain).
522    o pkg/seaice: change a discretization detail to make the B-grid code
523      "more symmetric". This change is likely to remove all "ridges/leads" that
524      where quasi-aligned with the grid in B-grid solutions. It may also be
525      the solution to the stress coupling issues with the B-grid.
526    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
527      remove .cvsignore from input dir. (since testreport no longer run here).
528    o pkg/thsice:
529     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
530     - fix reshaping of sea-ice just after advection:
531       melt all the ice only if ice-volume is too small.
532     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
533       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
534     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
535    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
536      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
537    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
538      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
539      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
540      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
541      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
542      -> update output.txt
543    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
544     this affects truncation error: -> update output.txt of exp:
545      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
546      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
547    
548    checkpoint59f
549    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
550    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
551      a bounded range (in forward mode)
552    o pkg/ecco, ctrl, autodiff and mom_common:
553     internal parameter controls, completements of implementations
554    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
555    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
556      (not seem any difference in testing results).
557    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
558       at face corners.
559    o pkg/generic_advdiff:
560     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
561      loop range indices for computing vertical advection tendency
562      and do the calculation in the interior only (no overlap) ;
563      for now, only implemented for SOM advection (to save CPU time).
564     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
565    o exch2 adjoint
566      First set of changes:
567      - add exch2 hand-written adjoint templates
568      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
569        This will require cleanup in pkg/autodiff/*.F
570        (changed routines currently kept separate in verif. code/)
571      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
572        that used to hide exch2 or cubed-sphere specific code
573        (commented via 'cph-exch2')
574    o pkg/seaice
575      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
576    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
577       output of global_ocean.cs32x15.thsice .
578    
579    checkpoint59e
580    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
581      for B-grid vector (not yet tested) and C-grid vector (<- only used
582      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
583    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
584      (#ifdef ALLOW_SALT_PLUME)
585    o gather_2d/scatter_2d: removed halo regions
586    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
587      scheme and the corresponding test case (under front_relax dir). For now,
588      only available with Skew-flux form and not yet tested in realistic set-up.
589      adjoint: store directives updated, but gradient checks deteriorated,
590      so maybe GM/Redi adjoint is now broken.
591    o seaice adjoint
592      * add AREA, HEFF, HSNOW as control variable
593        (should not change lab_sea results)
594      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
595    o pkg/seaice:
596      * added computation of saltFlux in seaice_growth;
597        For time being, sea ice salinity is assumed constant
598        contribution of snow flooding to freshening of sea ice is neglected.
599        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
600        defaults to 0.0 in order to maintain backward compatibility.
601        Typical values for SEAICE_salinity are 4 to 10 g/kg.
602      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
603      * added SEAICE_availHeatFrac, which specifies fraction of surface level
604        heat content used to melt or grow ice
605      * commented out cap of HICE: it helps keep ice thinner
606      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
607      * applied OBCS T/S mask to HEFFM sea ice mask
608    
609    checkpoint59d
610    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
611     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
612     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
613    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
614     and change default value of parameter "GM_Small_Number";
615     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
616       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
617       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
618    o pkg/ecco: cost function when applying pkg/smooth to controls
619    o pkg/ctrl: add forcingPrecond run time parameter
620    o pkg/seaice:
621     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
622     - fix bug in metric terms of u-equation in LSR solver (implicit part),
623       changes verification/lab_sea
624     - rearrange implicit part of u-equation in LSR solver to make it easier to
625       read, understand, and debug. This causes changes at the truncation level.
626     - fix (serious) bug in the boundary conditions (sign error in the implicit
627       part) of the LSR solver. Changes all LSR results.
628     - fixed problem with HSNOW initialization to avoid thick snow when AREA
629       is initilized with small values - does not change lab_sea results.
630     - added HsnowFile initialization capability
631    o pkg/smooth: addition to model/src and pkg/ctrl so allow
632     initialization of pkg/smooth and application to control vector
633    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
634    o dependencies: pkg/profiles requires pkg/cal
635    o pkg/profiles:
636     - added option ALLOW_PROFILES_GENERICGRID
637         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
638         that interpolation information (grid points and coefficients) is provided
639         within the netcdf input files.
640         -> sample matlab scripts can be found in MITgcm_contrib/gael
641         that allow you to prepare netcdf input files.
642     - also modified: cleaner include statements, cleaner error print statements,
643       cleaner stops when error, and more tests of the netcdf input files consistency.
644    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
645    o pkg/seaice:
646     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
647       requires a new routine: seaice_diagnostics_fill.F
648     - make sure that seaice does not move if not forced (pressure replacement
649       method, Hibler and Ip, 1995), changes results
650     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
651     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
652       It is turned off by default (=-1.), because it changes the results.
653     - make it possible to read AREA from a file, too.
654    
655    checkpoint59c
656    o add S/R and diagnostics for oceanic mixed-layer depth
657    o move GMRedi call after all vertical mixing schemes (including KPP)
658    o pkg/thsice:
659     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
660      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
661    o pkg/obcs:
662     - bug fix for balance code
663    o pkg/seaice:
664      - allow values of SEAICE_elasticParm > 1
665      - add new parameter SEAICE_evpTauRelax as an alternative
666        to SEAICE_elasticParm
667      - make lsr boundary conditions free slip (by default), changes result
668      - add code for no slip boundary conditions for lsr
669      - set minimum of zeta to zero (and not 4e8) (changes results)
670      - add a cap on AREA after advecting AREA if seaice_growth is not called
671    o change calculation of Visbeck K:
672      - no longer depend on tapering scheme; instead, compute slope (limited
673        by GM_maxSlope). this is equivalent to what was comuted before with
674        clipping or linear tappering.
675      - fix vertical averaging (wrong by 1/2 level)
676      - leave the old version (but will not be maintained) within
677        #ifdef OLD_VISBECK_CALC / #endif
678      - update output of exp. ideal_2D_oce
679    o change error catch in calc_r_star to improve vectorization
680    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
681      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
682    o adjoint:
683      Re-organized adjoint checkpointing according to Matt Mazloff
684      (but with modifs/completions/cleanups)
685      Storing is now bundled into large arrays to optimized I/O
686      (and second step in cleanup of the_main_loop)
687    
688    checkpoint59b
689    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
690      - export/import (between ocean & coupler) fields needed for ocean DIC.
691    o pkg/seaice:
692      - get rid of three more exchanges seaice_calc_viscosities (required
693        different loop boundaries in seaice_lsr and seaice_ocean_stress)
694      - bug fix in seaice_ocean_stress (update of lab_sea required)
695      - reduce loop boundaries to necessary minimum also in seaice_evp
696      - go back to the old way of computing deltaC/Z as the adjoint likes that
697        better
698    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
699      passive tracer to an Age Tracer) + update output.txt
700    o pkg/exf:
701      - implement A-grid / C-grid selection for wind-stress input files.
702      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
703      for now, in exf_bulk_largeyeager04.F only :
704      - change implementation for case where windspeed + 2. components wind-stress
705        are read-in. AND use rhoConstFresh to convert evap.
706    o pkg/seaice:
707      - use correct EXCH_UV for wind-forcing (on A-grid).
708      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
709        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
710    o pkg/exf:
711      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
712      EXF_INTERPOLATION:
713      - merge global_with_exf/code version of exf_interp_read.F
714        to the main code ;
715      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
716        reading the file ; Important: This options needs to be defined to recover
717        previous code.
718        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
719      - no longer loose real*8 precision along the way when using exf_iprec=64.
720    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
721      - change discretisation of evp-solver in order to avoid another exchange
722        (changes lab_sea) and clean up a little
723      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
724        help the adjoint (this also changes the results slightly)
725      - add a few "_d 0" where they had been missing in seaice_evp.F
726      - cleaning up: remove unused seaice_calc_rhs.F
727    o pkg/exf: some cleaning-up:
728      - change various "constants" into runtime parameters
729      - cleaned-up Large&Yeager04 routine which should eventually
730        replace exf_bulkformulae.F (changed names of S/R and CPP)
731        and merged various ALLOW_ATM_WIND options
732     only used with thsice pkg (in thsice_get_exf.F):
733      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
734        which are used when useStabilityFct_overIce=TRUE (= the default)
735      - change default values of ice & snow emissivity and scale downward LW
736        by ice & snow emissivity.
737    o pkg/thsice:
738     fix few little problems, in thsice_calc_thickn.F:
739      - growth vertically (and not laterally) if iceFrac == iceMaskMax
740      - melt only laterally if hIce < hThinIce (as the comments say)
741      and in thsice_extend.F:
742      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
743      - start to form ice as soon as the minimum ice-volume is reachable.
744     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
745      and cpl_aim+ocn
746    o pkg/kpp
747     - move computation of surface related input fields to KPP into a new
748       subroutine kpp_forcing_surf.F
749     - remove wrong (within bi,bj loops) EXCH calls.
750     - little cleaning (add argument myThid in last position, cvs header ...)
751     - for now, fix conservation problem by exchanging KPPviscAz (may not
752       be the best fix)
753    o pkg/seaice
754     - check for inconsistent evp parameter/cpp-flag combination
755     - remove leftover errIO flat for obsolete name list error handling
756    o OpenAD
757     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
758    
759    checkpoint59a
760    o pkg/seaice: some parameter clarifications and a little bit of clean up
761    o pkg/thsice: rename run-time parameters:
762       himin       -> hIceMin
763       himin0      -> hThinIce
764       hihig       -> hThickIce
765       i0          -> i0swFrac
766       transCoef   -> bMeltCoef
767       frac_energy -> fracMelting
768      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
769       with default values (for now) that do not change the results.
770      remove old version of thsice vars advection in pkg/seaice.
771  o in FFIELDS.h:  o in FFIELDS.h:
772    - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD    - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
773    - make pLoad & sIceLoad always available (but still only used if    - make pLoad & sIceLoad always available (but still only used if
774       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
775  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
776  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
777      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
778        are no longer updating the vertical diffusivity array
779        (passed as argument) but are (re-) setting those arrays.
780  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
781    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
782      cgrid-lsr and evp solver      cgrid-lsr and evp solver
# Line 30  o pkg/seaice: fix bug in evp solver, whi Line 796  o pkg/seaice: fix bug in evp solver, whi
796      of evp, complete rewrite for lsr case (latter is does not yet work      of evp, complete rewrite for lsr case (latter is does not yet work
797      in all cases)      in all cases)
798  o pkg/kpp: add code to have mixing in shelf ice caverns  o pkg/kpp: add code to have mixing in shelf ice caverns
799      - add myThid to all kpp routines (long overdue)
800    
801  checkpoint59  checkpoint59
802  o pkg/exf:  o pkg/exf:

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