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revision 1.790 by mlosch, Tue Apr 17 16:15:27 2007 UTC revision 1.1015 by jmc, Wed Aug 13 15:12:04 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o move kSurfC,kSurfW 7 kSurfS from SURFACE.h to GRID.h (next to kLowC)
8      (to facilitate conversion of oceanic pkg to p-coordinate).
9    o change FIND_RHO to FIND_RHO_2D :
10      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
11    o new pkg: cheapaml
12    
13    checkpoint61b
14    o exch2:
15      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
16      - no longer depend on the order sequence (N,S,E,W).
17      - 3rd exchange no longer needed (tested with 24 tiles).
18      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
19      - exch_UV_A-grid readily available (but not yet tested).
20      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
21      (both are no longer needed) in exch_uv: no effect in forward run; but
22       get truncation error differences with adjoint exch.
23    o exch2:
24     - change index-bounds storage (moved from target to local tile,
25       more intuitive this way) ; rename/remove some variables.
26     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
27    
28    checkpoint61a
29    o exch2/matlab-topology-generator:
30      fix bug in index bounds for N-S internal exchange (hard to tell if this
31      had any effect on the solution).
32    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
33      is exceeded
34    o testreport: modify syntax of awk, so that it works also with
35      awk, and not only with nawk and gawk
36    
37    checkpoint61
38    o autodiff
39      Change default for TAF usage by removing argument '-nonew_arg'
40      This changes TAF subroutine argument list (ordering of active var.)
41      Omission of this flag leads to incompatibility w.r.t. TAMC
42      To restore TAMC-compatibility, need following modifs:
43      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
44      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
45      Tested TAF version is 1.9.22
46      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
47    
48    checkpoint60
49    --->>> This is the last checkpoint for which generating the adjoint
50    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
51    --->>> by default.
52    --->>> Future checkpoints will ommit this flag by default.
53    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
54    o pkg/grdchk: Add gradient check to etan0 perturbations.
55    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
56    o pkg/autodiff: more flexibility in zeroadj.
57      model/src: modifying do_oceanic_phys.F accordingly.
58    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
59    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
60      special setup of gmredi for which the adjoint is stable
61      enough for parameter optimization.
62    o bridging the gap between eddy stress and GM.
63      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
64          along with a change in CPP option (now ALLOW_EDDYPSI).
65      -> when using GM w/ GM_AdvForm:
66          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
67          is applied either in the tracer Eq. or in momentum Eq.
68          depending on data.gmredi (intro. GM_InMomAsStress).
69      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
70      The key modifications are in model/src/taueddy_external_forcing.F
71      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
72    
73    checkpoint59r
74    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
75      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
76      fix option to read coriolis(@ cell-corner) from files with CS-grid.
77    o pkg/mnc: add some attributes to standard 1D-coordinate variables
78    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
79      mass points, when using mnc for output
80      - add runtime parameter (missing_value, missing_value_int) to override
81        default (which is the value of getcon('UNDEF'))
82    o pkg/mnc: prepare mnc for the actual use of missing values with the
83      diagnostics package: small fix in mnc_cw_readwrite.template and more
84      initialisation of never used fields
85      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
86      versions
87    o pkg/thsice/thsice_ini_vars.F added default initial values so that
88      thermodynamics sea ice solver does not blow up when some initial fields
89      are missing.
90    o move from external_forcing_surf.F to ini_forcing.F
91      the p-coord. hack consisting in using pLoad to set phi0surf ;
92      update output of tutorial_global_oce_in_p (affected @ truncation level).
93    o Freshen up a bit hs94.1x64x5, notably:
94      remove rotationPeriod and tRef=5*0. (adjoint only), and add
95      exactConserv=.TRUE.
96    o pkg/generic_advdiff:
97      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
98      applies to files where Temperature & Salinity 2nd Order moments are used.
99    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
100      this uses a dynamically allocated internal state data structure
101      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
102      and requires a fortran 90 compiler
103    
104    checkpoint59q
105    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
106       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
107    o Refresh tutorial_global_oce_biogeo, notably:
108      - change bathymetry (put back seamounts in ACC, use hFacs)
109      - change EOS (POLY3 --> JMD95Z)
110      - use Bryan-Lewis vertical diffusivity
111      - use multidimensional advection
112      - remove old virtual virtual in dic pkg, now done through ptracer pkg
113      - change a couple of parameters in dic pkg
114    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
115    o pkg/obcs: change default to OBCSfixTopo = .true.,
116      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
117      - replace "debugMode" with "debugLevel .GE. debLevB"
118    o implementation of TAF directives for gchem,cfc,dic
119    o remove "exp5" (replaced by tutorial_deep_convection).
120    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
121      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
122      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
123      --> changes results in exp4, seaice_obcs
124    o tutorial_deep_convection :
125      update the set-up and increase resolution and domain size ; start
126      from pseudo initial conditions = output at t=120mn in order to see
127      something happening when running testreport.
128    o pkg/seaice: add os7mp as an advection scheme
129                  add check for advection schemes
130                  add a flag for restoring T and S underneath sea ice
131    o pkg/my82: add netcdf-support and diagnostics
132    o thsice pkg:
133      - Now hsMax limits snow height by turning it into ice following
134        flooding scheme (and now conserving energy)
135      - Slight rewriting of the formula in thsice_calc_thick.F
136      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
137      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
138    
139    checkpoint59p
140    o gchem / dic / cfc :
141      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
142      - add new parameter files: "data.dic" & "data.cfc" ;
143      - various re-arrangement in initialisation & header file ;
144      - fix tutorial_global_oce_biogeo for multi-threaded test.
145    o pkg/dic: test for "pickup_dic" file when restarting ;
146      if no pickup-file, can restart with a re-initialised pH (same as it did
147      before) providing pickupStrictlyMatch is set to False.
148    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
149      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
150    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
151      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
152    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
153     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
154       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
155    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
156       scheme to use for vorticty-term ;
157     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
158       (with default selectVortScheme, return to original discretisation)
159     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
160    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
161    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
162      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
163      also fix diagnostics VISCAHW & VISCA4W.
164    
165    checkpoint59o
166    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
167    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
168      move a few statemens out the main loop into separate loops
169    o pkg/shelfice:
170      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
171        (kg/m^2/s), does not break tests, because in verification/isomip,
172        rhoConstFresh=rhoConst (by accident)
173      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
174      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
175        new file model/src/seawater.F, so that they are available for all pkgs.
176      - convert potential temperature into in-situ temperature. This changes the
177        isomip tests => update tests
178    o add a flag writePickupAtEnd (default=true) to be able to suppress
179      writing a pickup at the last timestep
180    o tools/mpack-1.6 :
181      - disable automake (not working) and autoconf (not needed).
182      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
183        also cleaner with much less compilation warnings.
184    o pkg/profiles:
185      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
186      (for "less than 32 characters name" compiler requirement)
187    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
188      conditions that have a different sampling frequency than S/T/U/V obcs
189    o pkg/diagnostics (stats-diags):
190      - fix global Min/Max in case 1 processor get only empty tiles
191    o genmake2: replace (4 times)
192         make genmake_tc_1.o >> genmake_warnings 2>&1
193      with
194         COMM="$CC $CFLAGS -c genmake_tc_1.c"
195         echo $COMM >> genmake_warnings
196         $COMM >> genmake_warnings 2>&1
197      to make genmake2 always see the value of CC as specified in the optfile.
198    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
199      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
200      - modify verification advect_cs test to test SOM-advection on CS-grid.
201    o pkg/ctrl:
202      - Rewrite of ctrl_map_ini_ecco.F,
203        introducing a generic routine (ctrl_map_ini_gen.F).
204      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
205    
206    checkpoint59n
207    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
208      number in dedicate array "hdiag":
209      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
210        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
211      - many small changes (integer format) for large number of diagnostics
212      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
213        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
214    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
215      usingSphericalGrid, this allows to define the rotated grid coordinates
216      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
217      geographical coordinates according to the inverse of the rotation defined
218      by the Euler angles, so that Coriolis parameter and online-interpolation by
219      exf works with the geographical coordinates on XC/YC/XG/YG.
220      Naturally, this feature does not work with all packages, so some
221      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
222      profiles), because there the coordinates are assumed to be regular
223      spherical grid coordinates.
224    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
225      - introduce isopycnal diffusion coefficient control.
226    o tools/adjoint_options:
227      - additional control vector components.
228    o pkg/mnc: have mnc create marginally meaning full coordinate variables
229      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
230    o pkg/mypackage:
231      - add example of read/write pickup for state-var ;
232      - add entry points to the main code for state-vars diags & write-pickup.
233    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
234      transitions for useExfYearlyFields
235      - add new subroutine that determines the file to read from for
236        use*YearlyFields = .TRUE. and .FALSE.
237      - add a verification experiment to global_with_exf that tests
238        useExfYearlyFields with USE_EXF_INTERPOLATION defined
239    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
240      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
241      subroutines (which could be generated from a template, because they are
242      almost identical), for now they are included in obcs_prescribe_read.F for
243      simplicity
244  o pkg/exf:  o pkg/exf:
245    move exf header files from lower_case.h to UPPER_CASE.h ;    - add a little more diagnostic to exf_interp_read (in analogy to
246    add missing cvs Header & Name      mds_read_field, can be turned off with debugLevel < debugLevA=1)
247      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
248        ugly but fast by unrolling short inner loops, inserting a unroll=8
249        directive in routine lagran, and splitting a loop and making do while the
250        outermost loop (the latter requires the intoduction of index arrays)
251    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
252    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
253      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
254    o verification/seaice_obcs: updated for restart test and latest options
255    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
256      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
257      for now this is only available for the C-grid code and also within
258      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
259    
260    checkpoint59m
261    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
262      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
263    o gad_som : fix flux output (& diagnostics) to have same units as other  
264      advection scheme fluxes (was previously multiplied by deltaT).  
265    o added verification/seaice_obcs both to test seaice open boundaries
266      and to provide an example matlab scrpt for generating them
267    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
268    o pkg/salt_plume: clean up salt_plume_frac.F to
269      remove redundancy in PlumeMethod 1 and 4
270    o pkg/kpp: added saltplume diagnostics
271    o pkg/obcs and pkg/seaice:
272      - do not set uice and vice to zero when OB*icefile are unspecified
273      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
274      - moved seaice tracer obcs after call to seaice_growth
275    o pkg/salt_plume: added various options for salt plume depth
276      criterion and for vertical distribution of the salt
277    
278    checkpoint59l
279    o pkg/ptracers: new version of ptracers pickup:
280      read meta file and write only fields which are needed to restart.
281      ( same logic as main pickup file ; also using pickupStrictlyMatch )
282    o pkg/seaice:
283      - add timescale for melting due to warm mixed layer as a means of
284        setting SEAICE_availHeatFrac more conveniently
285      - add a CPP-flag/runtime parameter check for flooding algorithm
286      - reformulated availHeat in seaice_growth.F to be independent of AREA
287    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
288      unit changes
289    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
290    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
291      SX vector computer.
292    o pkg/seaice:
293      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
294        seaice forcing fields can now be read only through pkg/exf
295      - removed some unused halos
296    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
297    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
298      or U/VICE from U/VWIND before computing U/VSTRESS
299    
300    checkpoint59k
301    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
302      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
303    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
304      all experiments pass when compile with un-initialised var. checking option.
305    o added pkg/salt_plume
306    o script to test restart (for now, in MITgcm_contrib/jmc_script)
307    o pkg/seaice: new read/write pickup version.
308      read meta file and write only fields which are needed to restart.
309      ( same logic as main pickup file ; also using pickupStrictlyMatch )
310    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
311    o lab_sea.hb87: modify the domain & update output.hb87.txt :
312      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
313      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
314      process. Fixed here by closing the domain at the Northern boundary.
315    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
316    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
317      a set of consecutive levels in/from a 3-D array.
318    o pkg/ptracers:
319      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
320      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
321    
322    checkpoint59j
323    o in pkgs: dic, obcs, offline, rbcs:
324      standard way to compute coeff. for time interpolation between 2 time reccords
325      which retains full precision (& make results less dependent on compiler).
326      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
327    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
328      packages instead of reading ice cover and wind speed separately
329    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
330     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
331      to allow to compile customized code before the update)
332    o cleaning-up:
333      - fix CPP instruction syntax in pkg/obcs
334      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
335        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
336      - fix some threads issue in IO parts.
337    o pkg/dic:
338      - add tons of "_d 0" (--> much better testreports !)
339       and then update outputs of tutorial_global_oce_biogeo
340    o pkg/mom_fluxform:
341      add a special version of momentum advection intended to conserve momentum
342      next to a bathymetry step or a coastline edge. (default = off = #undef)
343    o new read/write pickup version:
344      - for now, only implemented for main (mdsio) pickup file.
345      - write out only what is needed to restart; merge pickup_nh , pickup_ph
346        and main pickup together.
347      - read meta file; read only what is needed to restart; stop if a field
348        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
349        if it make sense (even if the restart is not perfect).
350      - if no meta file, assume that pickup to read corresponds exactly to
351        a pickup that would currently be written.
352      - read pickup written in the old format (until checkpoint59i) if it
353        recognizes an old meta file (no field-list).
354      - add a meta file in exp. which starts from a pickup: 2 cases:
355        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
356         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
357        b) a meta file describing the content of the associated pickup file
358         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
359    o pkg/mdsio & pkg/rw:
360      - new routine to read a meta file ; new set of routine to read
361        Multiple-fields file (with meta file).
362    o added open boundary conditions capability for seaice
363        HSNOW, HSALT, UICE, and VICE
364    
365    checkpoint59i
366    o adjoint:
367      * fix multiDimAdvection adjoint
368        (partial recomputation problem by TAF for fVerT(:,:,kDown)
369        and comlev1 size definition (maxpass vs. max. number of tracers)
370      * verification/global_ocean.90x45x15 adjoint now tests
371        NLFS and multiDimAdvection using DST3 (=30)
372      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
373    o pkg/kpp: add "_d 0" to real constant (if missing);
374      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
375      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
376    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
377      for internal parameters related to restart process (formerly from PARAMS.h)
378      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
379    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
380      as argument. (only atm2d & obcs write_pickup have not yet been updated)
381    o pkg/monitor:
382      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
383      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
384      - account for deep Atmosphere factor and density factor (anelastic)
385    o added open boundary conditions capability for seaice HEFF and AREA
386    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
387      thermodynamics
388      - requires a little reorganization, which affects the testreport results
389        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
390        so that now the conservative form is tested
391      - add a few comments
392    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
393    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
394    o add new diagnostics to seaice: advective, diffusive fluxes (only for
395      multidim-advection, for scheme 2 they are not filled) and transports,
396      thermodynamic growth rates
397    o change units of EmPmR (inside the code, + within coupling interface)
398      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
399      Affects results @ truncation level (cg2d match) and update output of
400       experiments: lab_sea(6), global_ocean.90x40x15(10),
401      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
402      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
403      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
404      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
405    
406    checkpoint59h
407    o pkg/exf:
408      - improve vectorization by moving if-statement out of loops in
409        exf_mapfields, exf_radiation
410      - exf_bulkformulae.F: introduce 2D fields and vectorize code
411    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
412    o testreport:
413      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
414        monitor & update offline_exf_seaice exp. output.
415      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
416    o pkg/seaice:
417      - bug fix in the evp solver: boundary conditions were affected be
418        masking of zMax/zMin (changes results)
419      - minor bug fix in boundary conditions in seaice_calc_strainrates
420        (changes results for no_slip)
421      - seaice_lsr.F: make interpolation of eta dependent on boundaries
422      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
423      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
424        stress formulation and no-slip boundary conditions
425    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
426      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
427    o pkg/seaice: a first HSALT time stepping equation has been checked in
428    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
429      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
430      without requiring DO-IF statements
431    o pkg/thsice:
432      use continuous power-law function for partition of energy between lateral
433      melting/freezing and thinning/thickening ; old code using step function
434      still available with #undef THSICE_FRACEN_POWERLAW
435      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
436    o testreport: change AD testing : check against results/output_adm.txt
437      using same scripts as for forward test.
438    
439    checkpoint59g
440    o adjoint testing: in preparation for changing testreport:
441      - output format: cost and grad written on separated lines
442      - ad output results in directory "results" (instead of "results_ad")
443    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
444    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
445    o pkg/ecco: allow user defined cost function contributions
446    o testreport:
447      Allow to choose (per experiment) the list of tested output variables
448       and the main variable (used to issue a pass/FAIL ) ;
449      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
450      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
451      Also modify printing of summary:
452       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
453       b) echo the list of tested variables in the individual summary.txt of
454          each experiment.
455    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
456      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
457      (but still depend on the tile decompostion of the domain).
458    o pkg/seaice: change a discretization detail to make the B-grid code
459      "more symmetric". This change is likely to remove all "ridges/leads" that
460      where quasi-aligned with the grid in B-grid solutions. It may also be
461      the solution to the stress coupling issues with the B-grid.
462    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
463      remove .cvsignore from input dir. (since testreport no longer run here).
464    o pkg/thsice:
465     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
466     - fix reshaping of sea-ice just after advection:
467       melt all the ice only if ice-volume is too small.
468     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
469       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
470     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
471    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
472      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
473    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
474      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
475      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
476      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
477      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
478      -> update output.txt
479    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
480     this affects truncation error: -> update output.txt of exp:
481      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
482      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
483    
484    checkpoint59f
485    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
486    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
487      a bounded range (in forward mode)
488    o pkg/ecco, ctrl, autodiff and mom_common:
489     internal parameter controls, completements of implementations
490    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
491    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
492      (not seem any difference in testing results).
493    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
494       at face corners.
495    o pkg/generic_advdiff:
496     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
497      loop range indices for computing vertical advection tendency
498      and do the calculation in the interior only (no overlap) ;
499      for now, only implemented for SOM advection (to save CPU time).
500     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
501    o exch2 adjoint
502      First set of changes:
503      - add exch2 hand-written adjoint templates
504      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
505        This will require cleanup in pkg/autodiff/*.F
506        (changed routines currently kept separate in verif. code/)
507      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
508        that used to hide exch2 or cubed-sphere specific code
509        (commented via 'cph-exch2')
510    o pkg/seaice
511      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
512    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
513       output of global_ocean.cs32x15.thsice .
514    
515    checkpoint59e
516    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
517      for B-grid vector (not yet tested) and C-grid vector (<- only used
518      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
519    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
520      (#ifdef ALLOW_SALT_PLUME)
521    o gather_2d/scatter_2d: removed halo regions
522    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
523      scheme and the corresponding test case (under front_relax dir). For now,
524      only available with Skew-flux form and not yet tested in realistic set-up.
525      adjoint: store directives updated, but gradient checks deteriorated,
526      so maybe GM/Redi adjoint is now broken.
527    o seaice adjoint
528      * add AREA, HEFF, HSNOW as control variable
529        (should not change lab_sea results)
530      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
531    o pkg/seaice:
532      * added computation of saltFlux in seaice_growth;
533        For time being, sea ice salinity is assumed constant
534        contribution of snow flooding to freshening of sea ice is neglected.
535        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
536        defaults to 0.0 in order to maintain backward compatibility.
537        Typical values for SEAICE_salinity are 4 to 10 g/kg.
538      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
539      * added SEAICE_availHeatFrac, which specifies fraction of surface level
540        heat content used to melt or grow ice
541      * commented out cap of HICE: it helps keep ice thinner
542      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
543      * applied OBCS T/S mask to HEFFM sea ice mask
544    
545    checkpoint59d
546    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
547     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
548     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
549    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
550     and change default value of parameter "GM_Small_Number";
551     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
552       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
553       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
554    o pkg/ecco: cost function when applying pkg/smooth to controls
555    o pkg/ctrl: add forcingPrecond run time parameter
556    o pkg/seaice:
557     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
558     - fix bug in metric terms of u-equation in LSR solver (implicit part),
559       changes verification/lab_sea
560     - rearrange implicit part of u-equation in LSR solver to make it easier to
561       read, understand, and debug. This causes changes at the truncation level.
562     - fix (serious) bug in the boundary conditions (sign error in the implicit
563       part) of the LSR solver. Changes all LSR results.
564     - fixed problem with HSNOW initialization to avoid thick snow when AREA
565       is initilized with small values - does not change lab_sea results.
566     - added HsnowFile initialization capability
567    o pkg/smooth: addition to model/src and pkg/ctrl so allow
568     initialization of pkg/smooth and application to control vector
569    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
570    o dependencies: pkg/profiles requires pkg/cal
571    o pkg/profiles:
572     - added option ALLOW_PROFILES_GENERICGRID
573         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
574         that interpolation information (grid points and coefficients) is provided
575         within the netcdf input files.
576         -> sample matlab scripts can be found in MITgcm_contrib/gael
577         that allow you to prepare netcdf input files.
578     - also modified: cleaner include statements, cleaner error print statements,
579       cleaner stops when error, and more tests of the netcdf input files consistency.
580    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
581    o pkg/seaice:
582     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
583       requires a new routine: seaice_diagnostics_fill.F
584     - make sure that seaice does not move if not forced (pressure replacement
585       method, Hibler and Ip, 1995), changes results
586     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
587     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
588       It is turned off by default (=-1.), because it changes the results.
589     - make it possible to read AREA from a file, too.
590    
591    checkpoint59c
592    o add S/R and diagnostics for oceanic mixed-layer depth
593    o move GMRedi call after all vertical mixing schemes (including KPP)
594    o pkg/thsice:
595     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
596      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
597    o pkg/obcs:
598     - bug fix for balance code
599    o pkg/seaice:
600      - allow values of SEAICE_elasticParm > 1
601      - add new parameter SEAICE_evpTauRelax as an alternative
602        to SEAICE_elasticParm
603      - make lsr boundary conditions free slip (by default), changes result
604      - add code for no slip boundary conditions for lsr
605      - set minimum of zeta to zero (and not 4e8) (changes results)
606      - add a cap on AREA after advecting AREA if seaice_growth is not called
607    o change calculation of Visbeck K:
608      - no longer depend on tapering scheme; instead, compute slope (limited
609        by GM_maxSlope). this is equivalent to what was comuted before with
610        clipping or linear tappering.
611      - fix vertical averaging (wrong by 1/2 level)
612      - leave the old version (but will not be maintained) within
613        #ifdef OLD_VISBECK_CALC / #endif
614      - update output of exp. ideal_2D_oce
615    o change error catch in calc_r_star to improve vectorization
616    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
617      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
618    o adjoint:
619      Re-organized adjoint checkpointing according to Matt Mazloff
620      (but with modifs/completions/cleanups)
621      Storing is now bundled into large arrays to optimized I/O
622      (and second step in cleanup of the_main_loop)
623    
624    checkpoint59b
625    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
626      - export/import (between ocean & coupler) fields needed for ocean DIC.
627    o pkg/seaice:
628      - get rid of three more exchanges seaice_calc_viscosities (required
629        different loop boundaries in seaice_lsr and seaice_ocean_stress)
630      - bug fix in seaice_ocean_stress (update of lab_sea required)
631      - reduce loop boundaries to necessary minimum also in seaice_evp
632      - go back to the old way of computing deltaC/Z as the adjoint likes that
633        better
634    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
635      passive tracer to an Age Tracer) + update output.txt
636    o pkg/exf:
637      - implement A-grid / C-grid selection for wind-stress input files.
638      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
639      for now, in exf_bulk_largeyeager04.F only :
640      - change implementation for case where windspeed + 2. components wind-stress
641        are read-in. AND use rhoConstFresh to convert evap.
642    o pkg/seaice:
643      - use correct EXCH_UV for wind-forcing (on A-grid).
644      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
645        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
646    o pkg/exf:
647      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
648      EXF_INTERPOLATION:
649      - merge global_with_exf/code version of exf_interp_read.F
650        to the main code ;
651      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
652        reading the file ; Important: This options needs to be defined to recover
653        previous code.
654        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
655      - no longer loose real*8 precision along the way when using exf_iprec=64.
656    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
657      - change discretisation of evp-solver in order to avoid another exchange
658        (changes lab_sea) and clean up a little
659      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
660        help the adjoint (this also changes the results slightly)
661      - add a few "_d 0" where they had been missing in seaice_evp.F
662      - cleaning up: remove unused seaice_calc_rhs.F
663    o pkg/exf: some cleaning-up:
664      - change various "constants" into runtime parameters
665      - cleaned-up Large&Yeager04 routine which should eventually
666        replace exf_bulkformulae.F (changed names of S/R and CPP)
667        and merged various ALLOW_ATM_WIND options
668     only used with thsice pkg (in thsice_get_exf.F):
669      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
670        which are used when useStabilityFct_overIce=TRUE (= the default)
671      - change default values of ice & snow emissivity and scale downward LW
672        by ice & snow emissivity.
673    o pkg/thsice:
674     fix few little problems, in thsice_calc_thickn.F:
675      - growth vertically (and not laterally) if iceFrac == iceMaskMax
676      - melt only laterally if hIce < hThinIce (as the comments say)
677      and in thsice_extend.F:
678      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
679      - start to form ice as soon as the minimum ice-volume is reachable.
680     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
681      and cpl_aim+ocn
682    o pkg/kpp
683     - move computation of surface related input fields to KPP into a new
684       subroutine kpp_forcing_surf.F
685     - remove wrong (within bi,bj loops) EXCH calls.
686     - little cleaning (add argument myThid in last position, cvs header ...)
687     - for now, fix conservation problem by exchanging KPPviscAz (may not
688       be the best fix)
689    o pkg/seaice
690     - check for inconsistent evp parameter/cpp-flag combination
691     - remove leftover errIO flat for obsolete name list error handling
692    o OpenAD
693     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
694    
695    checkpoint59a
696    o pkg/seaice: some parameter clarifications and a little bit of clean up
697    o pkg/thsice: rename run-time parameters:
698       himin       -> hIceMin
699       himin0      -> hThinIce
700       hihig       -> hThickIce
701       i0          -> i0swFrac
702       transCoef   -> bMeltCoef
703       frac_energy -> fracMelting
704      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
705       with default values (for now) that do not change the results.
706      remove old version of thsice vars advection in pkg/seaice.
707    o in FFIELDS.h:
708      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
709      - make pLoad & sIceLoad always available (but still only used if
710         ATMOSPHERIC_LOADING is #define).
711    o pkg/kpp: replaced _KPP_RL with _RL
712    o bug fixes for vertical diffusivity computations when both KPP and
713        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
714        are no longer updating the vertical diffusivity array
715        (passed as argument) but are (re-) setting those arrays.
716    o pkg/seaice: fix bug in evp solver, while doing that
717      - change (improve?) discretization of stress computations for both
718        cgrid-lsr and evp solver
719      - add a new routine to compute strain rates
720      - the above changes lab_sea results
721      - add no slip conditions for evp solver (off by default), lsr-version
722        may follow
723      - fix exchange for shear at Z-points (does not change lab_sea)
724      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
725        (to force the user to pick a time step since there is not "safe" way
726        of choosing it)
727      - add principal stress diagnostics
728      - rearrange fields for evp a little to avoid having to call a: too many
729        exchanges and b: exchanges for stress trensor components which we do
730        not have.
731      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
732        of evp, complete rewrite for lsr case (latter is does not yet work
733        in all cases)
734    o pkg/kpp: add code to have mixing in shelf ice caverns
735      - add myThid to all kpp routines (long overdue)
736    
737    checkpoint59
738    o pkg/exf:
739      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
740        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
741      - move exf header files from lower_case.h to UPPER_CASE.h ;
742        add missing cvs Header & Name
743      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
744      - add namelist param. selectStressGridPosition, exf_monFreq
745      - retire many _CLIM routines, and remove data.exf_clim
746        + params moved to data.exf
747        + climsst, climsss now handled by exf_set_gen, i.e.
748          climss?period=0 refers to constant field,
749          climss?period=-12 to monthly forcing
750      - split up namelists in data.exf
751  o pkg/seaice:  o pkg/seaice:
752    - remove seaice_exch and seaice_exch_uv    - remove seaice_exch and seaice_exch_uv
753    - remove superfluous exchange of theta    - remove superfluous exchange of theta
# Line 15  o pkg/seaice: Line 756  o pkg/seaice:
756      + new routine      + new routine
757      + two new field (taux, tauy for stress over ice)      + two new field (taux, tauy for stress over ice)
758      + removed one global field (DAIRN) for C-grid case only      + removed one global field (DAIRN) for C-grid case only
759    o pkg/thsise
760      - 2nd set of modifs for thsice adjoint in conjunction with exf
761    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
762    
763  checkpoint58y_post  checkpoint58y_post
764  o Added capability for latitudinal dependence of Bryan and Lewis, 1979  o Added capability for latitudinal dependence of Bryan and Lewis, 1979

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