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revision 1.803 by mlosch, Mon Apr 30 22:48:52 2007 UTC revision 1.1006 by heimbach, Tue Jun 24 11:20:09 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint61
8    o autodiff
9      Change default for TAF usage by removing argument '-nonew_arg'
10      This changes TAF subroutine argument list (ordering of active var.)
11      Omission of this flag leads to incompatibility w.r.t. TAMC
12      To restore TAMC-compatibility, need following modifs:
13      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
14      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
15      Tested TAF version is 1.9.22
16      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
17    
18    checkpoint60
19    --->>> This is the last checkpoint for which generating the adjoint
20    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
21    --->>> by default.
22    --->>> Future checkpoints will ommit this flag by default.
23    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
24    o pkg/grdchk: Add gradient check to etan0 perturbations.
25    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
26    o pkg/autodiff: more flexibility in zeroadj.
27      model/src: modifying do_oceanic_phys.F accordingly.
28    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
29    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
30      special setup of gmredi for which the adjoint is stable
31      enough for parameter optimization.
32    o bridging the gap between eddy stress and GM.
33      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
34          along with a change in CPP option (now ALLOW_EDDYPSI).
35      -> when using GM w/ GM_AdvForm:
36          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
37          is applied either in the tracer Eq. or in momentum Eq.
38          depending on data.gmredi (intro. GM_InMomAsStress).
39      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
40      The key modifications are in model/src/taueddy_external_forcing.F
41      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
42    
43    checkpoint59r
44    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
45      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
46      fix option to read coriolis(@ cell-corner) from files with CS-grid.
47    o pkg/mnc: add some attributes to standard 1D-coordinate variables
48    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
49      mass points, when using mnc for output
50      - add runtime parameter (missing_value, missing_value_int) to override
51        default (which is the value of getcon('UNDEF'))
52    o pkg/mnc: prepare mnc for the actual use of missing values with the
53      diagnostics package: small fix in mnc_cw_readwrite.template and more
54      initialisation of never used fields
55      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
56      versions
57    o pkg/thsice/thsice_ini_vars.F added default initial values so that
58      thermodynamics sea ice solver does not blow up when some initial fields
59      are missing.
60    o move from external_forcing_surf.F to ini_forcing.F
61      the p-coord. hack consisting in using pLoad to set phi0surf ;
62      update output of tutorial_global_oce_in_p (affected @ truncation level).
63    o Freshen up a bit hs94.1x64x5, notably:
64      remove rotationPeriod and tRef=5*0. (adjoint only), and add
65      exactConserv=.TRUE.
66    o pkg/generic_advdiff:
67      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
68      applies to files where Temperature & Salinity 2nd Order moments are used.
69    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
70      this uses a dynamically allocated internal state data structure
71      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
72      and requires a fortran 90 compiler
73    
74    checkpoint59q
75    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
76       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
77    o Refresh tutorial_global_oce_biogeo, notably:
78      - change bathymetry (put back seamounts in ACC, use hFacs)
79      - change EOS (POLY3 --> JMD95Z)
80      - use Bryan-Lewis vertical diffusivity
81      - use multidimensional advection
82      - remove old virtual virtual in dic pkg, now done through ptracer pkg
83      - change a couple of parameters in dic pkg
84    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
85    o pkg/obcs: change default to OBCSfixTopo = .true.,
86      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
87      - replace "debugMode" with "debugLevel .GE. debLevB"
88    o implementation of TAF directives for gchem,cfc,dic
89    o remove "exp5" (replaced by tutorial_deep_convection).
90    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
91      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
92      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
93      --> changes results in exp4, seaice_obcs
94    o tutorial_deep_convection :
95      update the set-up and increase resolution and domain size ; start
96      from pseudo initial conditions = output at t=120mn in order to see
97      something happening when running testreport.
98    o pkg/seaice: add os7mp as an advection scheme
99                  add check for advection schemes
100                  add a flag for restoring T and S underneath sea ice
101    o pkg/my82: add netcdf-support and diagnostics
102    o thsice pkg:
103      - Now hsMax limits snow height by turning it into ice following
104        flooding scheme (and now conserving energy)
105      - Slight rewriting of the formula in thsice_calc_thick.F
106      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
107      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
108    
109    checkpoint59p
110    o gchem / dic / cfc :
111      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
112      - add new parameter files: "data.dic" & "data.cfc" ;
113      - various re-arrangement in initialisation & header file ;
114      - fix tutorial_global_oce_biogeo for multi-threaded test.
115    o pkg/dic: test for "pickup_dic" file when restarting ;
116      if no pickup-file, can restart with a re-initialised pH (same as it did
117      before) providing pickupStrictlyMatch is set to False.
118    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
119      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
120    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
121      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
122    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
123     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
124       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
125    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
126       scheme to use for vorticty-term ;
127     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
128       (with default selectVortScheme, return to original discretisation)
129     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
130    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
131    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
132      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
133      also fix diagnostics VISCAHW & VISCA4W.
134    
135    checkpoint59o
136    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
137    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
138      move a few statemens out the main loop into separate loops
139    o pkg/shelfice:
140      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
141        (kg/m^2/s), does not break tests, because in verification/isomip,
142        rhoConstFresh=rhoConst (by accident)
143      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
144      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
145        new file model/src/seawater.F, so that they are available for all pkgs.
146      - convert potential temperature into in-situ temperature. This changes the
147        isomip tests => update tests
148    o add a flag writePickupAtEnd (default=true) to be able to suppress
149      writing a pickup at the last timestep
150    o tools/mpack-1.6 :
151      - disable automake (not working) and autoconf (not needed).
152      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
153        also cleaner with much less compilation warnings.
154    o pkg/profiles:
155      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
156      (for "less than 32 characters name" compiler requirement)
157    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
158      conditions that have a different sampling frequency than S/T/U/V obcs
159    o pkg/diagnostics (stats-diags):
160      - fix global Min/Max in case 1 processor get only empty tiles
161    o genmake2: replace (4 times)
162         make genmake_tc_1.o >> genmake_warnings 2>&1
163      with
164         COMM="$CC $CFLAGS -c genmake_tc_1.c"
165         echo $COMM >> genmake_warnings
166         $COMM >> genmake_warnings 2>&1
167      to make genmake2 always see the value of CC as specified in the optfile.
168    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
169      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
170      - modify verification advect_cs test to test SOM-advection on CS-grid.
171    o pkg/ctrl:
172      - Rewrite of ctrl_map_ini_ecco.F,
173        introducing a generic routine (ctrl_map_ini_gen.F).
174      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
175    
176    checkpoint59n
177    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
178      number in dedicate array "hdiag":
179      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
180        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
181      - many small changes (integer format) for large number of diagnostics
182      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
183        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
184    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
185      usingSphericalGrid, this allows to define the rotated grid coordinates
186      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
187      geographical coordinates according to the inverse of the rotation defined
188      by the Euler angles, so that Coriolis parameter and online-interpolation by
189      exf works with the geographical coordinates on XC/YC/XG/YG.
190      Naturally, this feature does not work with all packages, so some
191      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
192      profiles), because there the coordinates are assumed to be regular
193      spherical grid coordinates.
194    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
195      - introduce isopycnal diffusion coefficient control.
196    o tools/adjoint_options:
197      - additional control vector components.
198    o pkg/mnc: have mnc create marginally meaning full coordinate variables
199      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
200    o pkg/mypackage:
201      - add example of read/write pickup for state-var ;
202      - add entry points to the main code for state-vars diags & write-pickup.
203    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
204      transitions for useExfYearlyFields
205      - add new subroutine that determines the file to read from for
206        use*YearlyFields = .TRUE. and .FALSE.
207      - add a verification experiment to global_with_exf that tests
208        useExfYearlyFields with USE_EXF_INTERPOLATION defined
209    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
210      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
211      subroutines (which could be generated from a template, because they are
212      almost identical), for now they are included in obcs_prescribe_read.F for
213      simplicity
214    o pkg/exf:
215      - add a little more diagnostic to exf_interp_read (in analogy to
216        mds_read_field, can be turned off with debugLevel < debugLevA=1)
217      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
218        ugly but fast by unrolling short inner loops, inserting a unroll=8
219        directive in routine lagran, and splitting a loop and making do while the
220        outermost loop (the latter requires the intoduction of index arrays)
221    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
222    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
223      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
224    o verification/seaice_obcs: updated for restart test and latest options
225    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
226      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
227      for now this is only available for the C-grid code and also within
228      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
229    
230    checkpoint59m
231    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
232      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
233    o gad_som : fix flux output (& diagnostics) to have same units as other  
234      advection scheme fluxes (was previously multiplied by deltaT).  
235    o added verification/seaice_obcs both to test seaice open boundaries
236      and to provide an example matlab scrpt for generating them
237    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
238    o pkg/salt_plume: clean up salt_plume_frac.F to
239      remove redundancy in PlumeMethod 1 and 4
240    o pkg/kpp: added saltplume diagnostics
241    o pkg/obcs and pkg/seaice:
242      - do not set uice and vice to zero when OB*icefile are unspecified
243      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
244      - moved seaice tracer obcs after call to seaice_growth
245    o pkg/salt_plume: added various options for salt plume depth
246      criterion and for vertical distribution of the salt
247    
248    checkpoint59l
249    o pkg/ptracers: new version of ptracers pickup:
250      read meta file and write only fields which are needed to restart.
251      ( same logic as main pickup file ; also using pickupStrictlyMatch )
252    o pkg/seaice:
253      - add timescale for melting due to warm mixed layer as a means of
254        setting SEAICE_availHeatFrac more conveniently
255      - add a CPP-flag/runtime parameter check for flooding algorithm
256      - reformulated availHeat in seaice_growth.F to be independent of AREA
257    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
258      unit changes
259    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
260    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
261      SX vector computer.
262    o pkg/seaice:
263      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
264        seaice forcing fields can now be read only through pkg/exf
265      - removed some unused halos
266    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
267    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
268      or U/VICE from U/VWIND before computing U/VSTRESS
269    
270    checkpoint59k
271    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
272      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
273    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
274      all experiments pass when compile with un-initialised var. checking option.
275    o added pkg/salt_plume
276    o script to test restart (for now, in MITgcm_contrib/jmc_script)
277    o pkg/seaice: new read/write pickup version.
278      read meta file and write only fields which are needed to restart.
279      ( same logic as main pickup file ; also using pickupStrictlyMatch )
280    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
281    o lab_sea.hb87: modify the domain & update output.hb87.txt :
282      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
283      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
284      process. Fixed here by closing the domain at the Northern boundary.
285    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
286    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
287      a set of consecutive levels in/from a 3-D array.
288    o pkg/ptracers:
289      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
290      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
291    
292    checkpoint59j
293    o in pkgs: dic, obcs, offline, rbcs:
294      standard way to compute coeff. for time interpolation between 2 time reccords
295      which retains full precision (& make results less dependent on compiler).
296      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
297    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
298      packages instead of reading ice cover and wind speed separately
299    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
300     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
301      to allow to compile customized code before the update)
302    o cleaning-up:
303      - fix CPP instruction syntax in pkg/obcs
304      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
305        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
306      - fix some threads issue in IO parts.
307    o pkg/dic:
308      - add tons of "_d 0" (--> much better testreports !)
309       and then update outputs of tutorial_global_oce_biogeo
310    o pkg/mom_fluxform:
311      add a special version of momentum advection intended to conserve momentum
312      next to a bathymetry step or a coastline edge. (default = off = #undef)
313    o new read/write pickup version:
314      - for now, only implemented for main (mdsio) pickup file.
315      - write out only what is needed to restart; merge pickup_nh , pickup_ph
316        and main pickup together.
317      - read meta file; read only what is needed to restart; stop if a field
318        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
319        if it make sense (even if the restart is not perfect).
320      - if no meta file, assume that pickup to read corresponds exactly to
321        a pickup that would currently be written.
322      - read pickup written in the old format (until checkpoint59i) if it
323        recognizes an old meta file (no field-list).
324      - add a meta file in exp. which starts from a pickup: 2 cases:
325        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
326         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
327        b) a meta file describing the content of the associated pickup file
328         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
329    o pkg/mdsio & pkg/rw:
330      - new routine to read a meta file ; new set of routine to read
331        Multiple-fields file (with meta file).
332    o added open boundary conditions capability for seaice
333        HSNOW, HSALT, UICE, and VICE
334    
335    checkpoint59i
336    o adjoint:
337      * fix multiDimAdvection adjoint
338        (partial recomputation problem by TAF for fVerT(:,:,kDown)
339        and comlev1 size definition (maxpass vs. max. number of tracers)
340      * verification/global_ocean.90x45x15 adjoint now tests
341        NLFS and multiDimAdvection using DST3 (=30)
342      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
343    o pkg/kpp: add "_d 0" to real constant (if missing);
344      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
345      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
346    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
347      for internal parameters related to restart process (formerly from PARAMS.h)
348      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
349    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
350      as argument. (only atm2d & obcs write_pickup have not yet been updated)
351    o pkg/monitor:
352      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
353      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
354      - account for deep Atmosphere factor and density factor (anelastic)
355    o added open boundary conditions capability for seaice HEFF and AREA
356    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
357      thermodynamics
358      - requires a little reorganization, which affects the testreport results
359        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
360        so that now the conservative form is tested
361      - add a few comments
362    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
363    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
364    o add new diagnostics to seaice: advective, diffusive fluxes (only for
365      multidim-advection, for scheme 2 they are not filled) and transports,
366      thermodynamic growth rates
367    o change units of EmPmR (inside the code, + within coupling interface)
368      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
369      Affects results @ truncation level (cg2d match) and update output of
370       experiments: lab_sea(6), global_ocean.90x40x15(10),
371      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
372      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
373      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
374      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
375    
376    checkpoint59h
377    o pkg/exf:
378      - improve vectorization by moving if-statement out of loops in
379        exf_mapfields, exf_radiation
380      - exf_bulkformulae.F: introduce 2D fields and vectorize code
381    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
382    o testreport:
383      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
384        monitor & update offline_exf_seaice exp. output.
385      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
386    o pkg/seaice:
387      - bug fix in the evp solver: boundary conditions were affected be
388        masking of zMax/zMin (changes results)
389      - minor bug fix in boundary conditions in seaice_calc_strainrates
390        (changes results for no_slip)
391      - seaice_lsr.F: make interpolation of eta dependent on boundaries
392      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
393      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
394        stress formulation and no-slip boundary conditions
395    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
396      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
397    o pkg/seaice: a first HSALT time stepping equation has been checked in
398    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
399      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
400      without requiring DO-IF statements
401    o pkg/thsice:
402      use continuous power-law function for partition of energy between lateral
403      melting/freezing and thinning/thickening ; old code using step function
404      still available with #undef THSICE_FRACEN_POWERLAW
405      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
406    o testreport: change AD testing : check against results/output_adm.txt
407      using same scripts as for forward test.
408    
409    checkpoint59g
410    o adjoint testing: in preparation for changing testreport:
411      - output format: cost and grad written on separated lines
412      - ad output results in directory "results" (instead of "results_ad")
413    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
414    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
415    o pkg/ecco: allow user defined cost function contributions
416    o testreport:
417      Allow to choose (per experiment) the list of tested output variables
418       and the main variable (used to issue a pass/FAIL ) ;
419      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
420      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
421      Also modify printing of summary:
422       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
423       b) echo the list of tested variables in the individual summary.txt of
424          each experiment.
425    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
426      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
427      (but still depend on the tile decompostion of the domain).
428    o pkg/seaice: change a discretization detail to make the B-grid code
429      "more symmetric". This change is likely to remove all "ridges/leads" that
430      where quasi-aligned with the grid in B-grid solutions. It may also be
431      the solution to the stress coupling issues with the B-grid.
432    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
433      remove .cvsignore from input dir. (since testreport no longer run here).
434    o pkg/thsice:
435     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
436     - fix reshaping of sea-ice just after advection:
437       melt all the ice only if ice-volume is too small.
438     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
439       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
440     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
441    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
442      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
443    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
444      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
445      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
446      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
447      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
448      -> update output.txt
449    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
450     this affects truncation error: -> update output.txt of exp:
451      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
452      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
453    
454    checkpoint59f
455    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
456    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
457      a bounded range (in forward mode)
458    o pkg/ecco, ctrl, autodiff and mom_common:
459     internal parameter controls, completements of implementations
460    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
461    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
462      (not seem any difference in testing results).
463    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
464       at face corners.
465    o pkg/generic_advdiff:
466     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
467      loop range indices for computing vertical advection tendency
468      and do the calculation in the interior only (no overlap) ;
469      for now, only implemented for SOM advection (to save CPU time).
470     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
471    o exch2 adjoint
472      First set of changes:
473      - add exch2 hand-written adjoint templates
474      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
475        This will require cleanup in pkg/autodiff/*.F
476        (changed routines currently kept separate in verif. code/)
477      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
478        that used to hide exch2 or cubed-sphere specific code
479        (commented via 'cph-exch2')
480    o pkg/seaice
481      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
482    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
483       output of global_ocean.cs32x15.thsice .
484    
485    checkpoint59e
486    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
487      for B-grid vector (not yet tested) and C-grid vector (<- only used
488      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
489    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
490      (#ifdef ALLOW_SALT_PLUME)
491    o gather_2d/scatter_2d: removed halo regions
492    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
493      scheme and the corresponding test case (under front_relax dir). For now,
494      only available with Skew-flux form and not yet tested in realistic set-up.
495      adjoint: store directives updated, but gradient checks deteriorated,
496      so maybe GM/Redi adjoint is now broken.
497    o seaice adjoint
498      * add AREA, HEFF, HSNOW as control variable
499        (should not change lab_sea results)
500      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
501    o pkg/seaice:
502      * added computation of saltFlux in seaice_growth;
503        For time being, sea ice salinity is assumed constant
504        contribution of snow flooding to freshening of sea ice is neglected.
505        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
506        defaults to 0.0 in order to maintain backward compatibility.
507        Typical values for SEAICE_salinity are 4 to 10 g/kg.
508      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
509      * added SEAICE_availHeatFrac, which specifies fraction of surface level
510        heat content used to melt or grow ice
511      * commented out cap of HICE: it helps keep ice thinner
512      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
513      * applied OBCS T/S mask to HEFFM sea ice mask
514    
515    checkpoint59d
516    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
517     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
518     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
519    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
520     and change default value of parameter "GM_Small_Number";
521     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
522       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
523       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
524    o pkg/ecco: cost function when applying pkg/smooth to controls
525    o pkg/ctrl: add forcingPrecond run time parameter
526    o pkg/seaice:
527     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
528     - fix bug in metric terms of u-equation in LSR solver (implicit part),
529       changes verification/lab_sea
530     - rearrange implicit part of u-equation in LSR solver to make it easier to
531       read, understand, and debug. This causes changes at the truncation level.
532     - fix (serious) bug in the boundary conditions (sign error in the implicit
533       part) of the LSR solver. Changes all LSR results.
534     - fixed problem with HSNOW initialization to avoid thick snow when AREA
535       is initilized with small values - does not change lab_sea results.
536     - added HsnowFile initialization capability
537    o pkg/smooth: addition to model/src and pkg/ctrl so allow
538     initialization of pkg/smooth and application to control vector
539    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
540    o dependencies: pkg/profiles requires pkg/cal
541    o pkg/profiles:
542     - added option ALLOW_PROFILES_GENERICGRID
543         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
544         that interpolation information (grid points and coefficients) is provided
545         within the netcdf input files.
546         -> sample matlab scripts can be found in MITgcm_contrib/gael
547         that allow you to prepare netcdf input files.
548     - also modified: cleaner include statements, cleaner error print statements,
549       cleaner stops when error, and more tests of the netcdf input files consistency.
550    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
551    o pkg/seaice:
552     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
553       requires a new routine: seaice_diagnostics_fill.F
554     - make sure that seaice does not move if not forced (pressure replacement
555       method, Hibler and Ip, 1995), changes results
556     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
557     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
558       It is turned off by default (=-1.), because it changes the results.
559     - make it possible to read AREA from a file, too.
560    
561    checkpoint59c
562    o add S/R and diagnostics for oceanic mixed-layer depth
563    o move GMRedi call after all vertical mixing schemes (including KPP)
564    o pkg/thsice:
565     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
566      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
567    o pkg/obcs:
568     - bug fix for balance code
569    o pkg/seaice:
570      - allow values of SEAICE_elasticParm > 1
571      - add new parameter SEAICE_evpTauRelax as an alternative
572        to SEAICE_elasticParm
573      - make lsr boundary conditions free slip (by default), changes result
574      - add code for no slip boundary conditions for lsr
575      - set minimum of zeta to zero (and not 4e8) (changes results)
576      - add a cap on AREA after advecting AREA if seaice_growth is not called
577    o change calculation of Visbeck K:
578      - no longer depend on tapering scheme; instead, compute slope (limited
579        by GM_maxSlope). this is equivalent to what was comuted before with
580        clipping or linear tappering.
581      - fix vertical averaging (wrong by 1/2 level)
582      - leave the old version (but will not be maintained) within
583        #ifdef OLD_VISBECK_CALC / #endif
584      - update output of exp. ideal_2D_oce
585    o change error catch in calc_r_star to improve vectorization
586    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
587      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
588    o adjoint:
589      Re-organized adjoint checkpointing according to Matt Mazloff
590      (but with modifs/completions/cleanups)
591      Storing is now bundled into large arrays to optimized I/O
592      (and second step in cleanup of the_main_loop)
593    
594    checkpoint59b
595    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
596      - export/import (between ocean & coupler) fields needed for ocean DIC.
597    o pkg/seaice:
598      - get rid of three more exchanges seaice_calc_viscosities (required
599        different loop boundaries in seaice_lsr and seaice_ocean_stress)
600      - bug fix in seaice_ocean_stress (update of lab_sea required)
601      - reduce loop boundaries to necessary minimum also in seaice_evp
602      - go back to the old way of computing deltaC/Z as the adjoint likes that
603        better
604    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
605      passive tracer to an Age Tracer) + update output.txt
606    o pkg/exf:
607      - implement A-grid / C-grid selection for wind-stress input files.
608      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
609      for now, in exf_bulk_largeyeager04.F only :
610      - change implementation for case where windspeed + 2. components wind-stress
611        are read-in. AND use rhoConstFresh to convert evap.
612    o pkg/seaice:
613      - use correct EXCH_UV for wind-forcing (on A-grid).
614      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
615        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
616    o pkg/exf:
617      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
618      EXF_INTERPOLATION:
619      - merge global_with_exf/code version of exf_interp_read.F
620        to the main code ;
621      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
622        reading the file ; Important: This options needs to be defined to recover
623        previous code.
624        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
625      - no longer loose real*8 precision along the way when using exf_iprec=64.
626    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
627      - change discretisation of evp-solver in order to avoid another exchange
628        (changes lab_sea) and clean up a little
629      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
630        help the adjoint (this also changes the results slightly)
631      - add a few "_d 0" where they had been missing in seaice_evp.F
632      - cleaning up: remove unused seaice_calc_rhs.F
633    o pkg/exf: some cleaning-up:
634      - change various "constants" into runtime parameters
635      - cleaned-up Large&Yeager04 routine which should eventually
636        replace exf_bulkformulae.F (changed names of S/R and CPP)
637        and merged various ALLOW_ATM_WIND options
638     only used with thsice pkg (in thsice_get_exf.F):
639      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
640        which are used when useStabilityFct_overIce=TRUE (= the default)
641      - change default values of ice & snow emissivity and scale downward LW
642        by ice & snow emissivity.
643    o pkg/thsice:
644     fix few little problems, in thsice_calc_thickn.F:
645      - growth vertically (and not laterally) if iceFrac == iceMaskMax
646      - melt only laterally if hIce < hThinIce (as the comments say)
647      and in thsice_extend.F:
648      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
649      - start to form ice as soon as the minimum ice-volume is reachable.
650     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
651      and cpl_aim+ocn
652    o pkg/kpp
653     - move computation of surface related input fields to KPP into a new
654       subroutine kpp_forcing_surf.F
655     - remove wrong (within bi,bj loops) EXCH calls.
656     - little cleaning (add argument myThid in last position, cvs header ...)
657     - for now, fix conservation problem by exchanging KPPviscAz (may not
658       be the best fix)
659    o pkg/seaice
660     - check for inconsistent evp parameter/cpp-flag combination
661     - remove leftover errIO flat for obsolete name list error handling
662    o OpenAD
663     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
664    
665    checkpoint59a
666  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
667  o pkg/thsice: rename run-time parameters:  o pkg/thsice: rename run-time parameters:
668     himin       -> hIceMin     himin       -> hIceMin
# Line 21  o in FFIELDS.h: Line 680  o in FFIELDS.h:
680       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
681  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
682  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
683      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
684        are no longer updating the vertical diffusivity array
685        (passed as argument) but are (re-) setting those arrays.
686  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
687    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
688      cgrid-lsr and evp solver      cgrid-lsr and evp solver
# Line 41  o pkg/seaice: fix bug in evp solver, whi Line 702  o pkg/seaice: fix bug in evp solver, whi
702      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
703      in all cases)      in all cases)
704  o pkg/kpp: add code to have mixing in shelf ice caverns  o pkg/kpp: add code to have mixing in shelf ice caverns
705      - add myThid to all kpp routines (long overdue)
706    
707  checkpoint59  checkpoint59
708  o pkg/exf:  o pkg/exf:

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