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revision 1.803 by mlosch, Mon Apr 30 22:48:52 2007 UTC revision 1.981 by gforget, Thu Apr 24 21:41:27 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 implementation of TAF directives for gchem,cfc,dic
8    o remove "exp5" (replaced by tutorial_deep_convection).
9    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
10      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
11      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
12      --> changes results in dome, exp4, internal_wave, seaice_obcs, and
13      tutorial_plume_on_slope.
14    o tutorial_deep_convection :
15      update the set-up and increase resolution and domain size ; start
16      from pseudo initial conditions = output at t=120mn in order to see
17      something happening when running testreport.
18    o pkg/seaice: add os7mp as an advection scheme
19                  add check for advection schemes
20                  add a flag for restoring T and S underneath sea ice
21    o pkg/my82: add netcdf-support and diagnostics
22    o thsice pkg:
23      - Now hsMax limits snow height by turning it into ice following
24        flooding scheme (and now conserving energy)
25      - Slight rewriting of the formula in thsice_calc_thick.F
26      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
27      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
28    
29    checkpoint59p
30    o gchem / dic / cfc :
31      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
32      - add new parameter files: "data.dic" & "data.cfc" ;
33      - various re-arrangement in initialisation & header file ;
34      - fix tutorial_global_oce_biogeo for multi-threaded test.
35    o pkg/dic: test for "pickup_dic" file when restarting ;
36      if no pickup-file, can restart with a re-initialised pH (same as it did
37      before) providing pickupStrictlyMatch is set to False.
38    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
39      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
40    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
41      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
42    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
43     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
44       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
45    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
46       scheme to use for vorticty-term ;
47     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
48       (with default selectVortScheme, return to original discretisation)
49     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
50    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
51    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
52      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
53      also fix diagnostics VISCAHW & VISCA4W.
54    
55    checkpoint59o
56    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
57    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
58      move a few statemens out the main loop into separate loops
59    o pkg/shelfice:
60      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
61        (kg/m^2/s), does not break tests, because in verification/isomip,
62        rhoConstFresh=rhoConst (by accident)
63      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
64      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
65        new file model/src/seawater.F, so that they are available for all pkgs.
66      - convert potential temperature into in-situ temperature. This changes the
67        isomip tests => update tests
68    o add a flag writePickupAtEnd (default=true) to be able to suppress
69      writing a pickup at the last timestep
70    o tools/mpack-1.6 :
71      - disable automake (not working) and autoconf (not needed).
72      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
73        also cleaner with much less compilation warnings.
74    o pkg/profiles:
75      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
76      (for "less than 32 characters name" compiler requirement)
77    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
78      conditions that have a different sampling frequency than S/T/U/V obcs
79    o pkg/diagnostics (stats-diags):
80      - fix global Min/Max in case 1 processor get only empty tiles
81    o genmake2: replace (4 times)
82         make genmake_tc_1.o >> genmake_warnings 2>&1
83      with
84         COMM="$CC $CFLAGS -c genmake_tc_1.c"
85         echo $COMM >> genmake_warnings
86         $COMM >> genmake_warnings 2>&1
87      to make genmake2 always see the value of CC as specified in the optfile.
88    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
89      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
90      - modify verification advect_cs test to test SOM-advection on CS-grid.
91    o pkg/ctrl:
92      - Rewrite of ctrl_map_ini_ecco.F,
93        introducing a generic routine (ctrl_map_ini_gen.F).
94      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
95    
96    checkpoint59n
97    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
98      number in dedicate array "hdiag":
99      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
100        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
101      - many small changes (integer format) for large number of diagnostics
102      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
103        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
104    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
105      usingSphericalGrid, this allows to define the rotated grid coordinates
106      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
107      geographical coordinates according to the inverse of the rotation defined
108      by the Euler angles, so that Coriolis parameter and online-interpolation by
109      exf works with the geographical coordinates on XC/YC/XG/YG.
110      Naturally, this feature does not work with all packages, so some
111      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
112      profiles), because there the coordinates are assumed to be regular
113      spherical grid coordinates.
114    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
115      - introduce isopycnal diffusion coefficient control.
116    o tools/adjoint_options:
117      - additional control vector components.
118    o pkg/mnc: have mnc create marginally meaning full coordinate variables
119      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
120    o pkg/mypackage:
121      - add example of read/write pickup for state-var ;
122      - add entry points to the main code for state-vars diags & write-pickup.
123    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
124      transitions for useExfYearlyFields
125      - add new subroutine that determines the file to read from for
126        use*YearlyFields = .TRUE. and .FALSE.
127      - add a verification experiment to global_with_exf that tests
128        useExfYearlyFields with USE_EXF_INTERPOLATION defined
129    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
130      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
131      subroutines (which could be generated from a template, because they are
132      almost identical), for now they are included in obcs_prescribe_read.F for
133      simplicity
134    o pkg/exf:
135      - add a little more diagnostic to exf_interp_read (in analogy to
136        mds_read_field, can be turned off with debugLevel < debugLevA=1)
137      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
138        ugly but fast by unrolling short inner loops, inserting a unroll=8
139        directive in routine lagran, and splitting a loop and making do while the
140        outermost loop (the latter requires the intoduction of index arrays)
141    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
142    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
143      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
144    o verification/seaice_obcs: updated for restart test and latest options
145    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
146      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
147      for now this is only available for the C-grid code and also within
148      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
149    
150    checkpoint59m
151    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
152      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
153    o gad_som : fix flux output (& diagnostics) to have same units as other  
154      advection scheme fluxes (was previously multiplied by deltaT).  
155    o added verification/seaice_obcs both to test seaice open boundaries
156      and to provide an example matlab scrpt for generating them
157    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
158    o pkg/salt_plume: clean up salt_plume_frac.F to
159      remove redundancy in PlumeMethod 1 and 4
160    o pkg/kpp: added saltplume diagnostics
161    o pkg/obcs and pkg/seaice:
162      - do not set uice and vice to zero when OB*icefile are unspecified
163      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
164      - moved seaice tracer obcs after call to seaice_growth
165    o pkg/salt_plume: added various options for salt plume depth
166      criterion and for vertical distribution of the salt
167    
168    checkpoint59l
169    o pkg/ptracers: new version of ptracers pickup:
170      read meta file and write only fields which are needed to restart.
171      ( same logic as main pickup file ; also using pickupStrictlyMatch )
172    o pkg/seaice:
173      - add timescale for melting due to warm mixed layer as a means of
174        setting SEAICE_availHeatFrac more conveniently
175      - add a CPP-flag/runtime parameter check for flooding algorithm
176      - reformulated availHeat in seaice_growth.F to be independent of AREA
177    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
178      unit changes
179    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
180    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
181      SX vector computer.
182    o pkg/seaice:
183      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
184        seaice forcing fields can now be read only through pkg/exf
185      - removed some unused halos
186    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
187    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
188      or U/VICE from U/VWIND before computing U/VSTRESS
189    
190    checkpoint59k
191    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
192      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
193    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
194      all experiments pass when compile with un-initialised var. checking option.
195    o added pkg/salt_plume
196    o script to test restart (for now, in MITgcm_contrib/jmc_script)
197    o pkg/seaice: new read/write pickup version.
198      read meta file and write only fields which are needed to restart.
199      ( same logic as main pickup file ; also using pickupStrictlyMatch )
200    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
201    o lab_sea.hb87: modify the domain & update output.hb87.txt :
202      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
203      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
204      process. Fixed here by closing the domain at the Northern boundary.
205    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
206    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
207      a set of consecutive levels in/from a 3-D array.
208    o pkg/ptracers:
209      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
210      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
211    
212    checkpoint59j
213    o in pkgs: dic, obcs, offline, rbcs:
214      standard way to compute coeff. for time interpolation between 2 time reccords
215      which retains full precision (& make results less dependent on compiler).
216      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
217    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
218      packages instead of reading ice cover and wind speed separately
219    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
220     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
221      to allow to compile customized code before the update)
222    o cleaning-up:
223      - fix CPP instruction syntax in pkg/obcs
224      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
225        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
226      - fix some threads issue in IO parts.
227    o pkg/dic:
228      - add tons of "_d 0" (--> much better testreports !)
229       and then update outputs of tutorial_global_oce_biogeo
230    o pkg/mom_fluxform:
231      add a special version of momentum advection intended to conserve momentum
232      next to a bathymetry step or a coastline edge. (default = off = #undef)
233    o new read/write pickup version:
234      - for now, only implemented for main (mdsio) pickup file.
235      - write out only what is needed to restart; merge pickup_nh , pickup_ph
236        and main pickup together.
237      - read meta file; read only what is needed to restart; stop if a field
238        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
239        if it make sense (even if the restart is not perfect).
240      - if no meta file, assume that pickup to read corresponds exactly to
241        a pickup that would currently be written.
242      - read pickup written in the old format (until checkpoint59i) if it
243        recognizes an old meta file (no field-list).
244      - add a meta file in exp. which starts from a pickup: 2 cases:
245        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
246         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
247        b) a meta file describing the content of the associated pickup file
248         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
249    o pkg/mdsio & pkg/rw:
250      - new routine to read a meta file ; new set of routine to read
251        Multiple-fields file (with meta file).
252    o added open boundary conditions capability for seaice
253        HSNOW, HSALT, UICE, and VICE
254    
255    checkpoint59i
256    o adjoint:
257      * fix multiDimAdvection adjoint
258        (partial recomputation problem by TAF for fVerT(:,:,kDown)
259        and comlev1 size definition (maxpass vs. max. number of tracers)
260      * verification/global_ocean.90x45x15 adjoint now tests
261        NLFS and multiDimAdvection using DST3 (=30)
262      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
263    o pkg/kpp: add "_d 0" to real constant (if missing);
264      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
265      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
266    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
267      for internal parameters related to restart process (formerly from PARAMS.h)
268      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
269    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
270      as argument. (only atm2d & obcs write_pickup have not yet been updated)
271    o pkg/monitor:
272      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
273      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
274      - account for deep Atmosphere factor and density factor (anelastic)
275    o added open boundary conditions capability for seaice HEFF and AREA
276    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
277      thermodynamics
278      - requires a little reorganization, which affects the testreport results
279        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
280        so that now the conservative form is tested
281      - add a few comments
282    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
283    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
284    o add new diagnostics to seaice: advective, diffusive fluxes (only for
285      multidim-advection, for scheme 2 they are not filled) and transports,
286      thermodynamic growth rates
287    o change units of EmPmR (inside the code, + within coupling interface)
288      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
289      Affects results @ truncation level (cg2d match) and update output of
290       experiments: lab_sea(6), global_ocean.90x40x15(10),
291      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
292      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
293      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
294      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
295    
296    checkpoint59h
297    o pkg/exf:
298      - improve vectorization by moving if-statement out of loops in
299        exf_mapfields, exf_radiation
300      - exf_bulkformulae.F: introduce 2D fields and vectorize code
301    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
302    o testreport:
303      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
304        monitor & update offline_exf_seaice exp. output.
305      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
306    o pkg/seaice:
307      - bug fix in the evp solver: boundary conditions were affected be
308        masking of zMax/zMin (changes results)
309      - minor bug fix in boundary conditions in seaice_calc_strainrates
310        (changes results for no_slip)
311      - seaice_lsr.F: make interpolation of eta dependent on boundaries
312      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
313      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
314        stress formulation and no-slip boundary conditions
315    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
316      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
317    o pkg/seaice: a first HSALT time stepping equation has been checked in
318    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
319      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
320      without requiring DO-IF statements
321    o pkg/thsice:
322      use continuous power-law function for partition of energy between lateral
323      melting/freezing and thinning/thickening ; old code using step function
324      still available with #undef THSICE_FRACEN_POWERLAW
325      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
326    o testreport: change AD testing : check against results/output_adm.txt
327      using same scripts as for forward test.
328    
329    checkpoint59g
330    o adjoint testing: in preparation for changing testreport:
331      - output format: cost and grad written on separated lines
332      - ad output results in directory "results" (instead of "results_ad")
333    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
334    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
335    o pkg/ecco: allow user defined cost function contributions
336    o testreport:
337      Allow to choose (per experiment) the list of tested output variables
338       and the main variable (used to issue a pass/FAIL ) ;
339      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
340      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
341      Also modify printing of summary:
342       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
343       b) echo the list of tested variables in the individual summary.txt of
344          each experiment.
345    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
346      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
347      (but still depend on the tile decompostion of the domain).
348    o pkg/seaice: change a discretization detail to make the B-grid code
349      "more symmetric". This change is likely to remove all "ridges/leads" that
350      where quasi-aligned with the grid in B-grid solutions. It may also be
351      the solution to the stress coupling issues with the B-grid.
352    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
353      remove .cvsignore from input dir. (since testreport no longer run here).
354    o pkg/thsice:
355     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
356     - fix reshaping of sea-ice just after advection:
357       melt all the ice only if ice-volume is too small.
358     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
359       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
360     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
361    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
362      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
363    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
364      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
365      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
366      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
367      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
368      -> update output.txt
369    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
370     this affects truncation error: -> update output.txt of exp:
371      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
372      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
373    
374    checkpoint59f
375    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
376    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
377      a bounded range (in forward mode)
378    o pkg/ecco, ctrl, autodiff and mom_common:
379     internal parameter controls, completements of implementations
380    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
381    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
382      (not seem any difference in testing results).
383    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
384       at face corners.
385    o pkg/generic_advdiff:
386     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
387      loop range indices for computing vertical advection tendency
388      and do the calculation in the interior only (no overlap) ;
389      for now, only implemented for SOM advection (to save CPU time).
390     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
391    o exch2 adjoint
392      First set of changes:
393      - add exch2 hand-written adjoint templates
394      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
395        This will require cleanup in pkg/autodiff/*.F
396        (changed routines currently kept separate in verif. code/)
397      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
398        that used to hide exch2 or cubed-sphere specific code
399        (commented via 'cph-exch2')
400    o pkg/seaice
401      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
402    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
403       output of global_ocean.cs32x15.thsice .
404    
405    checkpoint59e
406    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
407      for B-grid vector (not yet tested) and C-grid vector (<- only used
408      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
409    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
410      (#ifdef ALLOW_SALT_PLUME)
411    o gather_2d/scatter_2d: removed halo regions
412    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
413      scheme and the corresponding test case (under front_relax dir). For now,
414      only available with Skew-flux form and not yet tested in realistic set-up.
415      adjoint: store directives updated, but gradient checks deteriorated,
416      so maybe GM/Redi adjoint is now broken.
417    o seaice adjoint
418      * add AREA, HEFF, HSNOW as control variable
419        (should not change lab_sea results)
420      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
421    o pkg/seaice:
422      * added computation of saltFlux in seaice_growth;
423        For time being, sea ice salinity is assumed constant
424        contribution of snow flooding to freshening of sea ice is neglected.
425        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
426        defaults to 0.0 in order to maintain backward compatibility.
427        Typical values for SEAICE_salinity are 4 to 10 g/kg.
428      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
429      * added SEAICE_availHeatFrac, which specifies fraction of surface level
430        heat content used to melt or grow ice
431      * commented out cap of HICE: it helps keep ice thinner
432      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
433      * applied OBCS T/S mask to HEFFM sea ice mask
434    
435    checkpoint59d
436    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
437     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
438     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
439    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
440     and change default value of parameter "GM_Small_Number";
441     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
442       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
443       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
444    o pkg/ecco: cost function when applying pkg/smooth to controls
445    o pkg/ctrl: add forcingPrecond run time parameter
446    o pkg/seaice:
447     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
448     - fix bug in metric terms of u-equation in LSR solver (implicit part),
449       changes verification/lab_sea
450     - rearrange implicit part of u-equation in LSR solver to make it easier to
451       read, understand, and debug. This causes changes at the truncation level.
452     - fix (serious) bug in the boundary conditions (sign error in the implicit
453       part) of the LSR solver. Changes all LSR results.
454     - fixed problem with HSNOW initialization to avoid thick snow when AREA
455       is initilized with small values - does not change lab_sea results.
456     - added HsnowFile initialization capability
457    o pkg/smooth: addition to model/src and pkg/ctrl so allow
458     initialization of pkg/smooth and application to control vector
459    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
460    o dependencies: pkg/profiles requires pkg/cal
461    o pkg/profiles:
462     - added option ALLOW_PROFILES_GENERICGRID
463         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
464         that interpolation information (grid points and coefficients) is provided
465         within the netcdf input files.
466         -> sample matlab scripts can be found in MITgcm_contrib/gael
467         that allow you to prepare netcdf input files.
468     - also modified: cleaner include statements, cleaner error print statements,
469       cleaner stops when error, and more tests of the netcdf input files consistency.
470    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
471    o pkg/seaice:
472     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
473       requires a new routine: seaice_diagnostics_fill.F
474     - make sure that seaice does not move if not forced (pressure replacement
475       method, Hibler and Ip, 1995), changes results
476     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
477     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
478       It is turned off by default (=-1.), because it changes the results.
479     - make it possible to read AREA from a file, too.
480    
481    checkpoint59c
482    o add S/R and diagnostics for oceanic mixed-layer depth
483    o move GMRedi call after all vertical mixing schemes (including KPP)
484    o pkg/thsice:
485     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
486      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
487    o pkg/obcs:
488     - bug fix for balance code
489    o pkg/seaice:
490      - allow values of SEAICE_elasticParm > 1
491      - add new parameter SEAICE_evpTauRelax as an alternative
492        to SEAICE_elasticParm
493      - make lsr boundary conditions free slip (by default), changes result
494      - add code for no slip boundary conditions for lsr
495      - set minimum of zeta to zero (and not 4e8) (changes results)
496      - add a cap on AREA after advecting AREA if seaice_growth is not called
497    o change calculation of Visbeck K:
498      - no longer depend on tapering scheme; instead, compute slope (limited
499        by GM_maxSlope). this is equivalent to what was comuted before with
500        clipping or linear tappering.
501      - fix vertical averaging (wrong by 1/2 level)
502      - leave the old version (but will not be maintained) within
503        #ifdef OLD_VISBECK_CALC / #endif
504      - update output of exp. ideal_2D_oce
505    o change error catch in calc_r_star to improve vectorization
506    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
507      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
508    o adjoint:
509      Re-organized adjoint checkpointing according to Matt Mazloff
510      (but with modifs/completions/cleanups)
511      Storing is now bundled into large arrays to optimized I/O
512      (and second step in cleanup of the_main_loop)
513    
514    checkpoint59b
515    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
516      - export/import (between ocean & coupler) fields needed for ocean DIC.
517    o pkg/seaice:
518      - get rid of three more exchanges seaice_calc_viscosities (required
519        different loop boundaries in seaice_lsr and seaice_ocean_stress)
520      - bug fix in seaice_ocean_stress (update of lab_sea required)
521      - reduce loop boundaries to necessary minimum also in seaice_evp
522      - go back to the old way of computing deltaC/Z as the adjoint likes that
523        better
524    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
525      passive tracer to an Age Tracer) + update output.txt
526    o pkg/exf:
527      - implement A-grid / C-grid selection for wind-stress input files.
528      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
529      for now, in exf_bulk_largeyeager04.F only :
530      - change implementation for case where windspeed + 2. components wind-stress
531        are read-in. AND use rhoConstFresh to convert evap.
532    o pkg/seaice:
533      - use correct EXCH_UV for wind-forcing (on A-grid).
534      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
535        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
536    o pkg/exf:
537      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
538      EXF_INTERPOLATION:
539      - merge global_with_exf/code version of exf_interp_read.F
540        to the main code ;
541      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
542        reading the file ; Important: This options needs to be defined to recover
543        previous code.
544        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
545      - no longer loose real*8 precision along the way when using exf_iprec=64.
546    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
547      - change discretisation of evp-solver in order to avoid another exchange
548        (changes lab_sea) and clean up a little
549      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
550        help the adjoint (this also changes the results slightly)
551      - add a few "_d 0" where they had been missing in seaice_evp.F
552      - cleaning up: remove unused seaice_calc_rhs.F
553    o pkg/exf: some cleaning-up:
554      - change various "constants" into runtime parameters
555      - cleaned-up Large&Yeager04 routine which should eventually
556        replace exf_bulkformulae.F (changed names of S/R and CPP)
557        and merged various ALLOW_ATM_WIND options
558     only used with thsice pkg (in thsice_get_exf.F):
559      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
560        which are used when useStabilityFct_overIce=TRUE (= the default)
561      - change default values of ice & snow emissivity and scale downward LW
562        by ice & snow emissivity.
563    o pkg/thsice:
564     fix few little problems, in thsice_calc_thickn.F:
565      - growth vertically (and not laterally) if iceFrac == iceMaskMax
566      - melt only laterally if hIce < hThinIce (as the comments say)
567      and in thsice_extend.F:
568      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
569      - start to form ice as soon as the minimum ice-volume is reachable.
570     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
571      and cpl_aim+ocn
572    o pkg/kpp
573     - move computation of surface related input fields to KPP into a new
574       subroutine kpp_forcing_surf.F
575     - remove wrong (within bi,bj loops) EXCH calls.
576     - little cleaning (add argument myThid in last position, cvs header ...)
577     - for now, fix conservation problem by exchanging KPPviscAz (may not
578       be the best fix)
579    o pkg/seaice
580     - check for inconsistent evp parameter/cpp-flag combination
581     - remove leftover errIO flat for obsolete name list error handling
582    o OpenAD
583     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
584    
585    checkpoint59a
586  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
587  o pkg/thsice: rename run-time parameters:  o pkg/thsice: rename run-time parameters:
588     himin       -> hIceMin     himin       -> hIceMin
# Line 21  o in FFIELDS.h: Line 600  o in FFIELDS.h:
600       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
601  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
602  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
603      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
604        are no longer updating the vertical diffusivity array
605        (passed as argument) but are (re-) setting those arrays.
606  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
607    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
608      cgrid-lsr and evp solver      cgrid-lsr and evp solver
# Line 41  o pkg/seaice: fix bug in evp solver, whi Line 622  o pkg/seaice: fix bug in evp solver, whi
622      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
623      in all cases)      in all cases)
624  o pkg/kpp: add code to have mixing in shelf ice caverns  o pkg/kpp: add code to have mixing in shelf ice caverns
625      - add myThid to all kpp routines (long overdue)
626    
627  checkpoint59  checkpoint59
628  o pkg/exf:  o pkg/exf:

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