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revision 1.801 by jmc, Fri Apr 27 16:33:53 2007 UTC revision 1.997 by jmc, Thu May 29 21:33:14 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint59r
8    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
9      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
10      fix option to read coriolis(@ cell-corner) from files with CS-grid.
11    o pkg/mnc: add some attributes to standard 1D-coordinate variables
12    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
13      mass points, when using mnc for output
14      - add runtime parameter (missing_value, missing_value_int) to override
15        default (which is the value of getcon('UNDEF'))
16    o pkg/mnc: prepare mnc for the actual use of missing values with the
17      diagnostics package: small fix in mnc_cw_readwrite.template and more
18      initialisation of never used fields
19      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
20      versions
21    o pkg/thsice/thsice_ini_vars.F added default initial values so that
22      thermodynamics sea ice solver does not blow up when some initial fields
23      are missing.
24    o move from external_forcing_surf.F to ini_forcing.F
25      the p-coord. hack consisting in using pLoad to set phi0surf ;
26      update output of tutorial_global_oce_in_p (affected @ truncation level).
27    o Freshen up a bit hs94.1x64x5, notably:
28      remove rotationPeriod and tRef=5*0. (adjoint only), and add
29      exactConserv=.TRUE.
30    o pkg/generic_advdiff:
31      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
32      applies to files where Temperature & Salinity 2nd Order moments are used.
33    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
34      this uses a dynamically allocated internal state data structure
35      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
36      and requires a fortran 90 compiler
37    
38    checkpoint59q
39    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
40       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
41    o Refresh tutorial_global_oce_biogeo, notably:
42      - change bathymetry (put back seamounts in ACC, use hFacs)
43      - change EOS (POLY3 --> JMD95Z)
44      - use Bryan-Lewis vertical diffusivity
45      - use multidimensional advection
46      - remove old virtual virtual in dic pkg, now done through ptracer pkg
47      - change a couple of parameters in dic pkg
48    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
49    o pkg/obcs: change default to OBCSfixTopo = .true.,
50      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
51      - replace "debugMode" with "debugLevel .GE. debLevB"
52    o implementation of TAF directives for gchem,cfc,dic
53    o remove "exp5" (replaced by tutorial_deep_convection).
54    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
55      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
56      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
57      --> changes results in exp4, seaice_obcs
58    o tutorial_deep_convection :
59      update the set-up and increase resolution and domain size ; start
60      from pseudo initial conditions = output at t=120mn in order to see
61      something happening when running testreport.
62    o pkg/seaice: add os7mp as an advection scheme
63                  add check for advection schemes
64                  add a flag for restoring T and S underneath sea ice
65    o pkg/my82: add netcdf-support and diagnostics
66    o thsice pkg:
67      - Now hsMax limits snow height by turning it into ice following
68        flooding scheme (and now conserving energy)
69      - Slight rewriting of the formula in thsice_calc_thick.F
70      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
71      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
72    
73    checkpoint59p
74    o gchem / dic / cfc :
75      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
76      - add new parameter files: "data.dic" & "data.cfc" ;
77      - various re-arrangement in initialisation & header file ;
78      - fix tutorial_global_oce_biogeo for multi-threaded test.
79    o pkg/dic: test for "pickup_dic" file when restarting ;
80      if no pickup-file, can restart with a re-initialised pH (same as it did
81      before) providing pickupStrictlyMatch is set to False.
82    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
83      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
84    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
85      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
86    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
87     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
88       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
89    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
90       scheme to use for vorticty-term ;
91     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
92       (with default selectVortScheme, return to original discretisation)
93     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
94    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
95    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
96      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
97      also fix diagnostics VISCAHW & VISCA4W.
98    
99    checkpoint59o
100    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
101    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
102      move a few statemens out the main loop into separate loops
103    o pkg/shelfice:
104      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
105        (kg/m^2/s), does not break tests, because in verification/isomip,
106        rhoConstFresh=rhoConst (by accident)
107      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
108      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
109        new file model/src/seawater.F, so that they are available for all pkgs.
110      - convert potential temperature into in-situ temperature. This changes the
111        isomip tests => update tests
112    o add a flag writePickupAtEnd (default=true) to be able to suppress
113      writing a pickup at the last timestep
114    o tools/mpack-1.6 :
115      - disable automake (not working) and autoconf (not needed).
116      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
117        also cleaner with much less compilation warnings.
118    o pkg/profiles:
119      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
120      (for "less than 32 characters name" compiler requirement)
121    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
122      conditions that have a different sampling frequency than S/T/U/V obcs
123    o pkg/diagnostics (stats-diags):
124      - fix global Min/Max in case 1 processor get only empty tiles
125    o genmake2: replace (4 times)
126         make genmake_tc_1.o >> genmake_warnings 2>&1
127      with
128         COMM="$CC $CFLAGS -c genmake_tc_1.c"
129         echo $COMM >> genmake_warnings
130         $COMM >> genmake_warnings 2>&1
131      to make genmake2 always see the value of CC as specified in the optfile.
132    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
133      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
134      - modify verification advect_cs test to test SOM-advection on CS-grid.
135    o pkg/ctrl:
136      - Rewrite of ctrl_map_ini_ecco.F,
137        introducing a generic routine (ctrl_map_ini_gen.F).
138      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
139    
140    checkpoint59n
141    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
142      number in dedicate array "hdiag":
143      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
144        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
145      - many small changes (integer format) for large number of diagnostics
146      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
147        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
148    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
149      usingSphericalGrid, this allows to define the rotated grid coordinates
150      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
151      geographical coordinates according to the inverse of the rotation defined
152      by the Euler angles, so that Coriolis parameter and online-interpolation by
153      exf works with the geographical coordinates on XC/YC/XG/YG.
154      Naturally, this feature does not work with all packages, so some
155      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
156      profiles), because there the coordinates are assumed to be regular
157      spherical grid coordinates.
158    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
159      - introduce isopycnal diffusion coefficient control.
160    o tools/adjoint_options:
161      - additional control vector components.
162    o pkg/mnc: have mnc create marginally meaning full coordinate variables
163      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
164    o pkg/mypackage:
165      - add example of read/write pickup for state-var ;
166      - add entry points to the main code for state-vars diags & write-pickup.
167    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
168      transitions for useExfYearlyFields
169      - add new subroutine that determines the file to read from for
170        use*YearlyFields = .TRUE. and .FALSE.
171      - add a verification experiment to global_with_exf that tests
172        useExfYearlyFields with USE_EXF_INTERPOLATION defined
173    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
174      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
175      subroutines (which could be generated from a template, because they are
176      almost identical), for now they are included in obcs_prescribe_read.F for
177      simplicity
178    o pkg/exf:
179      - add a little more diagnostic to exf_interp_read (in analogy to
180        mds_read_field, can be turned off with debugLevel < debugLevA=1)
181      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
182        ugly but fast by unrolling short inner loops, inserting a unroll=8
183        directive in routine lagran, and splitting a loop and making do while the
184        outermost loop (the latter requires the intoduction of index arrays)
185    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
186    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
187      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
188    o verification/seaice_obcs: updated for restart test and latest options
189    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
190      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
191      for now this is only available for the C-grid code and also within
192      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
193    
194    checkpoint59m
195    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
196      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
197    o gad_som : fix flux output (& diagnostics) to have same units as other  
198      advection scheme fluxes (was previously multiplied by deltaT).  
199    o added verification/seaice_obcs both to test seaice open boundaries
200      and to provide an example matlab scrpt for generating them
201    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
202    o pkg/salt_plume: clean up salt_plume_frac.F to
203      remove redundancy in PlumeMethod 1 and 4
204    o pkg/kpp: added saltplume diagnostics
205    o pkg/obcs and pkg/seaice:
206      - do not set uice and vice to zero when OB*icefile are unspecified
207      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
208      - moved seaice tracer obcs after call to seaice_growth
209    o pkg/salt_plume: added various options for salt plume depth
210      criterion and for vertical distribution of the salt
211    
212    checkpoint59l
213    o pkg/ptracers: new version of ptracers pickup:
214      read meta file and write only fields which are needed to restart.
215      ( same logic as main pickup file ; also using pickupStrictlyMatch )
216    o pkg/seaice:
217      - add timescale for melting due to warm mixed layer as a means of
218        setting SEAICE_availHeatFrac more conveniently
219      - add a CPP-flag/runtime parameter check for flooding algorithm
220      - reformulated availHeat in seaice_growth.F to be independent of AREA
221    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
222      unit changes
223    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
224    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
225      SX vector computer.
226    o pkg/seaice:
227      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
228        seaice forcing fields can now be read only through pkg/exf
229      - removed some unused halos
230    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
231    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
232      or U/VICE from U/VWIND before computing U/VSTRESS
233    
234    checkpoint59k
235    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
236      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
237    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
238      all experiments pass when compile with un-initialised var. checking option.
239    o added pkg/salt_plume
240    o script to test restart (for now, in MITgcm_contrib/jmc_script)
241    o pkg/seaice: new read/write pickup version.
242      read meta file and write only fields which are needed to restart.
243      ( same logic as main pickup file ; also using pickupStrictlyMatch )
244    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
245    o lab_sea.hb87: modify the domain & update output.hb87.txt :
246      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
247      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
248      process. Fixed here by closing the domain at the Northern boundary.
249    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
250    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
251      a set of consecutive levels in/from a 3-D array.
252    o pkg/ptracers:
253      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
254      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
255    
256    checkpoint59j
257    o in pkgs: dic, obcs, offline, rbcs:
258      standard way to compute coeff. for time interpolation between 2 time reccords
259      which retains full precision (& make results less dependent on compiler).
260      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
261    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
262      packages instead of reading ice cover and wind speed separately
263    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
264     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
265      to allow to compile customized code before the update)
266    o cleaning-up:
267      - fix CPP instruction syntax in pkg/obcs
268      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
269        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
270      - fix some threads issue in IO parts.
271    o pkg/dic:
272      - add tons of "_d 0" (--> much better testreports !)
273       and then update outputs of tutorial_global_oce_biogeo
274    o pkg/mom_fluxform:
275      add a special version of momentum advection intended to conserve momentum
276      next to a bathymetry step or a coastline edge. (default = off = #undef)
277    o new read/write pickup version:
278      - for now, only implemented for main (mdsio) pickup file.
279      - write out only what is needed to restart; merge pickup_nh , pickup_ph
280        and main pickup together.
281      - read meta file; read only what is needed to restart; stop if a field
282        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
283        if it make sense (even if the restart is not perfect).
284      - if no meta file, assume that pickup to read corresponds exactly to
285        a pickup that would currently be written.
286      - read pickup written in the old format (until checkpoint59i) if it
287        recognizes an old meta file (no field-list).
288      - add a meta file in exp. which starts from a pickup: 2 cases:
289        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
290         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
291        b) a meta file describing the content of the associated pickup file
292         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
293    o pkg/mdsio & pkg/rw:
294      - new routine to read a meta file ; new set of routine to read
295        Multiple-fields file (with meta file).
296    o added open boundary conditions capability for seaice
297        HSNOW, HSALT, UICE, and VICE
298    
299    checkpoint59i
300    o adjoint:
301      * fix multiDimAdvection adjoint
302        (partial recomputation problem by TAF for fVerT(:,:,kDown)
303        and comlev1 size definition (maxpass vs. max. number of tracers)
304      * verification/global_ocean.90x45x15 adjoint now tests
305        NLFS and multiDimAdvection using DST3 (=30)
306      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
307    o pkg/kpp: add "_d 0" to real constant (if missing);
308      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
309      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
310    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
311      for internal parameters related to restart process (formerly from PARAMS.h)
312      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
313    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
314      as argument. (only atm2d & obcs write_pickup have not yet been updated)
315    o pkg/monitor:
316      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
317      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
318      - account for deep Atmosphere factor and density factor (anelastic)
319    o added open boundary conditions capability for seaice HEFF and AREA
320    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
321      thermodynamics
322      - requires a little reorganization, which affects the testreport results
323        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
324        so that now the conservative form is tested
325      - add a few comments
326    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
327    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
328    o add new diagnostics to seaice: advective, diffusive fluxes (only for
329      multidim-advection, for scheme 2 they are not filled) and transports,
330      thermodynamic growth rates
331    o change units of EmPmR (inside the code, + within coupling interface)
332      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
333      Affects results @ truncation level (cg2d match) and update output of
334       experiments: lab_sea(6), global_ocean.90x40x15(10),
335      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
336      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
337      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
338      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
339    
340    checkpoint59h
341    o pkg/exf:
342      - improve vectorization by moving if-statement out of loops in
343        exf_mapfields, exf_radiation
344      - exf_bulkformulae.F: introduce 2D fields and vectorize code
345    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
346    o testreport:
347      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
348        monitor & update offline_exf_seaice exp. output.
349      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
350    o pkg/seaice:
351      - bug fix in the evp solver: boundary conditions were affected be
352        masking of zMax/zMin (changes results)
353      - minor bug fix in boundary conditions in seaice_calc_strainrates
354        (changes results for no_slip)
355      - seaice_lsr.F: make interpolation of eta dependent on boundaries
356      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
357      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
358        stress formulation and no-slip boundary conditions
359    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
360      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
361    o pkg/seaice: a first HSALT time stepping equation has been checked in
362    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
363      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
364      without requiring DO-IF statements
365    o pkg/thsice:
366      use continuous power-law function for partition of energy between lateral
367      melting/freezing and thinning/thickening ; old code using step function
368      still available with #undef THSICE_FRACEN_POWERLAW
369      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
370    o testreport: change AD testing : check against results/output_adm.txt
371      using same scripts as for forward test.
372    
373    checkpoint59g
374    o adjoint testing: in preparation for changing testreport:
375      - output format: cost and grad written on separated lines
376      - ad output results in directory "results" (instead of "results_ad")
377    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
378    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
379    o pkg/ecco: allow user defined cost function contributions
380    o testreport:
381      Allow to choose (per experiment) the list of tested output variables
382       and the main variable (used to issue a pass/FAIL ) ;
383      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
384      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
385      Also modify printing of summary:
386       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
387       b) echo the list of tested variables in the individual summary.txt of
388          each experiment.
389    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
390      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
391      (but still depend on the tile decompostion of the domain).
392    o pkg/seaice: change a discretization detail to make the B-grid code
393      "more symmetric". This change is likely to remove all "ridges/leads" that
394      where quasi-aligned with the grid in B-grid solutions. It may also be
395      the solution to the stress coupling issues with the B-grid.
396    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
397      remove .cvsignore from input dir. (since testreport no longer run here).
398    o pkg/thsice:
399     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
400     - fix reshaping of sea-ice just after advection:
401       melt all the ice only if ice-volume is too small.
402     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
403       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
404     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
405    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
406      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
407    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
408      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
409      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
410      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
411      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
412      -> update output.txt
413    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
414     this affects truncation error: -> update output.txt of exp:
415      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
416      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
417    
418    checkpoint59f
419    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
420    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
421      a bounded range (in forward mode)
422    o pkg/ecco, ctrl, autodiff and mom_common:
423     internal parameter controls, completements of implementations
424    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
425    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
426      (not seem any difference in testing results).
427    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
428       at face corners.
429    o pkg/generic_advdiff:
430     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
431      loop range indices for computing vertical advection tendency
432      and do the calculation in the interior only (no overlap) ;
433      for now, only implemented for SOM advection (to save CPU time).
434     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
435    o exch2 adjoint
436      First set of changes:
437      - add exch2 hand-written adjoint templates
438      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
439        This will require cleanup in pkg/autodiff/*.F
440        (changed routines currently kept separate in verif. code/)
441      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
442        that used to hide exch2 or cubed-sphere specific code
443        (commented via 'cph-exch2')
444    o pkg/seaice
445      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
446    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
447       output of global_ocean.cs32x15.thsice .
448    
449    checkpoint59e
450    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
451      for B-grid vector (not yet tested) and C-grid vector (<- only used
452      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
453    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
454      (#ifdef ALLOW_SALT_PLUME)
455    o gather_2d/scatter_2d: removed halo regions
456    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
457      scheme and the corresponding test case (under front_relax dir). For now,
458      only available with Skew-flux form and not yet tested in realistic set-up.
459      adjoint: store directives updated, but gradient checks deteriorated,
460      so maybe GM/Redi adjoint is now broken.
461    o seaice adjoint
462      * add AREA, HEFF, HSNOW as control variable
463        (should not change lab_sea results)
464      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
465    o pkg/seaice:
466      * added computation of saltFlux in seaice_growth;
467        For time being, sea ice salinity is assumed constant
468        contribution of snow flooding to freshening of sea ice is neglected.
469        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
470        defaults to 0.0 in order to maintain backward compatibility.
471        Typical values for SEAICE_salinity are 4 to 10 g/kg.
472      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
473      * added SEAICE_availHeatFrac, which specifies fraction of surface level
474        heat content used to melt or grow ice
475      * commented out cap of HICE: it helps keep ice thinner
476      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
477      * applied OBCS T/S mask to HEFFM sea ice mask
478    
479    checkpoint59d
480    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
481     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
482     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
483    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
484     and change default value of parameter "GM_Small_Number";
485     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
486       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
487       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
488    o pkg/ecco: cost function when applying pkg/smooth to controls
489    o pkg/ctrl: add forcingPrecond run time parameter
490    o pkg/seaice:
491     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
492     - fix bug in metric terms of u-equation in LSR solver (implicit part),
493       changes verification/lab_sea
494     - rearrange implicit part of u-equation in LSR solver to make it easier to
495       read, understand, and debug. This causes changes at the truncation level.
496     - fix (serious) bug in the boundary conditions (sign error in the implicit
497       part) of the LSR solver. Changes all LSR results.
498     - fixed problem with HSNOW initialization to avoid thick snow when AREA
499       is initilized with small values - does not change lab_sea results.
500     - added HsnowFile initialization capability
501    o pkg/smooth: addition to model/src and pkg/ctrl so allow
502     initialization of pkg/smooth and application to control vector
503    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
504    o dependencies: pkg/profiles requires pkg/cal
505    o pkg/profiles:
506     - added option ALLOW_PROFILES_GENERICGRID
507         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
508         that interpolation information (grid points and coefficients) is provided
509         within the netcdf input files.
510         -> sample matlab scripts can be found in MITgcm_contrib/gael
511         that allow you to prepare netcdf input files.
512     - also modified: cleaner include statements, cleaner error print statements,
513       cleaner stops when error, and more tests of the netcdf input files consistency.
514    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
515    o pkg/seaice:
516     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
517       requires a new routine: seaice_diagnostics_fill.F
518     - make sure that seaice does not move if not forced (pressure replacement
519       method, Hibler and Ip, 1995), changes results
520     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
521     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
522       It is turned off by default (=-1.), because it changes the results.
523     - make it possible to read AREA from a file, too.
524    
525    checkpoint59c
526    o add S/R and diagnostics for oceanic mixed-layer depth
527    o move GMRedi call after all vertical mixing schemes (including KPP)
528    o pkg/thsice:
529     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
530      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
531    o pkg/obcs:
532     - bug fix for balance code
533    o pkg/seaice:
534      - allow values of SEAICE_elasticParm > 1
535      - add new parameter SEAICE_evpTauRelax as an alternative
536        to SEAICE_elasticParm
537      - make lsr boundary conditions free slip (by default), changes result
538      - add code for no slip boundary conditions for lsr
539      - set minimum of zeta to zero (and not 4e8) (changes results)
540      - add a cap on AREA after advecting AREA if seaice_growth is not called
541    o change calculation of Visbeck K:
542      - no longer depend on tapering scheme; instead, compute slope (limited
543        by GM_maxSlope). this is equivalent to what was comuted before with
544        clipping or linear tappering.
545      - fix vertical averaging (wrong by 1/2 level)
546      - leave the old version (but will not be maintained) within
547        #ifdef OLD_VISBECK_CALC / #endif
548      - update output of exp. ideal_2D_oce
549    o change error catch in calc_r_star to improve vectorization
550    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
551      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
552    o adjoint:
553      Re-organized adjoint checkpointing according to Matt Mazloff
554      (but with modifs/completions/cleanups)
555      Storing is now bundled into large arrays to optimized I/O
556      (and second step in cleanup of the_main_loop)
557    
558    checkpoint59b
559    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
560      - export/import (between ocean & coupler) fields needed for ocean DIC.
561    o pkg/seaice:
562      - get rid of three more exchanges seaice_calc_viscosities (required
563        different loop boundaries in seaice_lsr and seaice_ocean_stress)
564      - bug fix in seaice_ocean_stress (update of lab_sea required)
565      - reduce loop boundaries to necessary minimum also in seaice_evp
566      - go back to the old way of computing deltaC/Z as the adjoint likes that
567        better
568    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
569      passive tracer to an Age Tracer) + update output.txt
570    o pkg/exf:
571      - implement A-grid / C-grid selection for wind-stress input files.
572      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
573      for now, in exf_bulk_largeyeager04.F only :
574      - change implementation for case where windspeed + 2. components wind-stress
575        are read-in. AND use rhoConstFresh to convert evap.
576    o pkg/seaice:
577      - use correct EXCH_UV for wind-forcing (on A-grid).
578      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
579        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
580    o pkg/exf:
581      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
582      EXF_INTERPOLATION:
583      - merge global_with_exf/code version of exf_interp_read.F
584        to the main code ;
585      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
586        reading the file ; Important: This options needs to be defined to recover
587        previous code.
588        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
589      - no longer loose real*8 precision along the way when using exf_iprec=64.
590    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
591      - change discretisation of evp-solver in order to avoid another exchange
592        (changes lab_sea) and clean up a little
593      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
594        help the adjoint (this also changes the results slightly)
595      - add a few "_d 0" where they had been missing in seaice_evp.F
596      - cleaning up: remove unused seaice_calc_rhs.F
597    o pkg/exf: some cleaning-up:
598      - change various "constants" into runtime parameters
599      - cleaned-up Large&Yeager04 routine which should eventually
600        replace exf_bulkformulae.F (changed names of S/R and CPP)
601        and merged various ALLOW_ATM_WIND options
602     only used with thsice pkg (in thsice_get_exf.F):
603      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
604        which are used when useStabilityFct_overIce=TRUE (= the default)
605      - change default values of ice & snow emissivity and scale downward LW
606        by ice & snow emissivity.
607    o pkg/thsice:
608     fix few little problems, in thsice_calc_thickn.F:
609      - growth vertically (and not laterally) if iceFrac == iceMaskMax
610      - melt only laterally if hIce < hThinIce (as the comments say)
611      and in thsice_extend.F:
612      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
613      - start to form ice as soon as the minimum ice-volume is reachable.
614     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
615      and cpl_aim+ocn
616    o pkg/kpp
617     - move computation of surface related input fields to KPP into a new
618       subroutine kpp_forcing_surf.F
619     - remove wrong (within bi,bj loops) EXCH calls.
620     - little cleaning (add argument myThid in last position, cvs header ...)
621     - for now, fix conservation problem by exchanging KPPviscAz (may not
622       be the best fix)
623    o pkg/seaice
624     - check for inconsistent evp parameter/cpp-flag combination
625     - remove leftover errIO flat for obsolete name list error handling
626    o OpenAD
627     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
628    
629    checkpoint59a
630    o pkg/seaice: some parameter clarifications and a little bit of clean up
631    o pkg/thsice: rename run-time parameters:
632       himin       -> hIceMin
633       himin0      -> hThinIce
634       hihig       -> hThickIce
635       i0          -> i0swFrac
636       transCoef   -> bMeltCoef
637       frac_energy -> fracMelting
638      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
639       with default values (for now) that do not change the results.
640      remove old version of thsice vars advection in pkg/seaice.
641  o in FFIELDS.h:  o in FFIELDS.h:
642    - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD    - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
643    - make pLoad & sIceLoad always available (but still only used if    - make pLoad & sIceLoad always available (but still only used if
644       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
645  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
646  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
647      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
648        are no longer updating the vertical diffusivity array
649        (passed as argument) but are (re-) setting those arrays.
650  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
651    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
652      cgrid-lsr and evp solver      cgrid-lsr and evp solver
# Line 30  o pkg/seaice: fix bug in evp solver, whi Line 666  o pkg/seaice: fix bug in evp solver, whi
666      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
667      in all cases)      in all cases)
668  o pkg/kpp: add code to have mixing in shelf ice caverns  o pkg/kpp: add code to have mixing in shelf ice caverns
669      - add myThid to all kpp routines (long overdue)
670    
671  checkpoint59  checkpoint59
672  o pkg/exf:  o pkg/exf:

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