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revision 1.749 by mlosch, Thu Nov 23 10:03:44 2006 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
587    o pkg/thsice: rename run-time parameters:
588       himin       -> hIceMin
589       himin0      -> hThinIce
590       hihig       -> hThickIce
591       i0          -> i0swFrac
592       transCoef   -> bMeltCoef
593       frac_energy -> fracMelting
594      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
595       with default values (for now) that do not change the results.
596      remove old version of thsice vars advection in pkg/seaice.
597    o in FFIELDS.h:
598      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
599      - make pLoad & sIceLoad always available (but still only used if
600         ATMOSPHERIC_LOADING is #define).
601    o pkg/kpp: replaced _KPP_RL with _RL
602    o bug fixes for vertical diffusivity computations when both KPP and
603        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
607      - change (improve?) discretization of stress computations for both
608        cgrid-lsr and evp solver
609      - add a new routine to compute strain rates
610      - the above changes lab_sea results
611      - add no slip conditions for evp solver (off by default), lsr-version
612        may follow
613      - fix exchange for shear at Z-points (does not change lab_sea)
614      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
615        (to force the user to pick a time step since there is not "safe" way
616        of choosing it)
617      - add principal stress diagnostics
618      - rearrange fields for evp a little to avoid having to call a: too many
619        exchanges and b: exchanges for stress trensor components which we do
620        not have.
621      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
622        of evp, complete rewrite for lsr case (latter is does not yet work
623        in all cases)
624    o pkg/kpp: add code to have mixing in shelf ice caverns
625      - add myThid to all kpp routines (long overdue)
626    
627    checkpoint59
628    o pkg/exf:
629      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
630        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
631      - move exf header files from lower_case.h to UPPER_CASE.h ;
632        add missing cvs Header & Name
633      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
634      - add namelist param. selectStressGridPosition, exf_monFreq
635      - retire many _CLIM routines, and remove data.exf_clim
636        + params moved to data.exf
637        + climsst, climsss now handled by exf_set_gen, i.e.
638          climss?period=0 refers to constant field,
639          climss?period=-12 to monthly forcing
640      - split up namelists in data.exf
641    o pkg/seaice:
642      - remove seaice_exch and seaice_exch_uv
643      - remove superfluous exchange of theta
644      - add myThid to seaice_budget_ocean/ice
645      - add new interface for atmospheric wind forcing (C-grid only)
646        + new routine
647        + two new field (taux, tauy for stress over ice)
648        + removed one global field (DAIRN) for C-grid case only
649    o pkg/thsise
650      - 2nd set of modifs for thsice adjoint in conjunction with exf
651    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
652    
653    checkpoint58y_post
654    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
655      vertical diffusivity, similar to that in MOM4; turned on using
656      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
657      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
658    o Added capability for 3D specification of background vertical diffusion
659      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
660      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
661      "data" file that contains the 3D vertical diffusivity coefficients.
662    o ice dynamics (pkg/seaice) with thsice thermodynamics:
663      - add code within pkg thsice to advect & diffuse sea-ice fields
664      similar to (and will replace) what has been added in  seaice_advdiff.F,
665      but: - conserving Mass, Heat & Salt.
666           - better when using non-linear advection scheme (not yet fully tested)
667           - can also be used in atmospheric set-up (for now, only the diffusion).
668    
669    checkpoint58x_post
670    o IO option for global-file compact format:
671      - add options when generating topology (utils/exch2/matlab-topology-generator)
672      - add I/O capability (pkg/mdsio).
673      - adapt utils/matlab/rdmds.m to read this format.
674      for now long-line format not yet supported by pkg/mdsio (& exch2).
675    o shelfice: add a few diagnostics
676    
677    checkpoint58w_post
678    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
679      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
680      (and replace horiVertRatio in NH code).
681      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
682                         and tutorial_plume_on_slope (sensitive to truncation)
683    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
684      directly to drive seaice model (C-grid only)
685    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
686     - reintroduce computation of wind from stress,
687     - compute tau (in exf_bulkformulae.F) from windstress averaged to
688       mass points to avoid tau = 0
689     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
690    o rdmnc.m: make it work with "global" files created with gluemnc
691    o rdmnc.m : some improvements in dealing with singleton dimension
692      (tested on all testreport mnc output files).
693    o genmake2: disable pkg/profiles if netcdf test fails.
694    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
695    o move call to cal_readparms up to make calendar parameters/variable available
696      to all packages
697    
698    checkpoint58v_post
699    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
700      useDynP_inEos_Zc tested.
701    o pkg/exf: changes to properly interpolate/mask/scale initial fields
702    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
703      and portions thereof.  See read_cs.txt for description and examples.
704    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
705      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
706      following the great-circle arc between those 2 points.
707    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
708      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
709    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
710     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
711     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
712     - still needs work (not working with some options ; efficiency to improve)
713       and serious testing.
714     - use this scheme for temperature & salinity in 2 advection test exp.:
715       advect_xy & advect_xz, respectively.
716    
717    checkpoint58u_post
718    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
719    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
720    o testreport: add option "-skipdir" to skip some test.
721    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
722      momentum calculation.
723    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
724    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
725      remove checkpoint.F and the_correction_step.F (no longer used);
726      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
727    o add option (linFSConserveTr) to correct for tracer source/sink due to
728      Linear Free surface
729    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
730    o pkg/thsice: fix reading mnc-pickups
731    
732    checkpoint58t_post
733    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
734    o pkg/mdsio:
735     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
736       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
737       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
738     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
739     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
740       either MDS_READ_FIELD or MDS_WRITE_FIELD )
741     - new S/R (to replace MDSWRITEMETA), which allows to write more
742       informations (variable names, time ...) to meta files.
743     - modify rdmds.m to give back the meta file content.
744    o pkg/diagnostics: change vertical interpolation to be safer, and more
745       flexible (define p-levels to interpolate to in data.diagnostics);
746      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
747       diagnostic pointer.
748    o pkg/seaice: more cleaning up of seaice_growth, added many comments
749    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
750    o fix multi-category seaice:
751     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
752       SEAICE_MULTICATEGORY
753     - fix short wave heat flux
754    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
755       and allow to use EVP solver. Change forward lab_sea: test both EVP
756       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
757    o Initial check-in of lab_sea adjoint
758      (very similar to natl_box_adjoint/code_seaice)
759      * used C-grid and EVP solver
760      * used KPP, GM/Redi
761      * uses inAdExact=.TRUE.
762      * gradient checks fail for both ADM and TLM
763        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
764        f.d. gradients actually seem more problematic than ADM, TLM gradients;
765        issue is related to forward mismatch between g77 an ifort
766    o pkg/seaice: overhaul of thermodynamics
767     - growth.F and groatb.F are replaced by new routine seaice_growth.F
768     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
769     - move a few global fields out of SEAICE.h into seaice_growth.F and
770       make them 2D (FICE/QNETO/ ...)
771     - remove FO (it is the same as QNETO)
772     - introduce a few local fields to avoid modifying external fields such
773       as atemp, etc.
774    
775    checkpoint58s_post
776    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
777      changed exf_set_gen.F so that
778        genperiod=0 means input file is one time-constant field and
779        genperiod=-12 means input file contains 12 monthly means
780    o CG2D: use pre-computed solver main-diagonal (stored in common block);
781      this affects truncation error ; generate new output file for exp. which
782      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
783        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
784        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
785        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
786        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
787        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
788    o start implementation of deep-atmosphere and anelastic formulation
789    o verification: remove 2nd copy of input files and use script "prepare_run"
790      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
791  o mom_common/vecinv/fluxform: fix a few initialisation isssues  o mom_common/vecinv/fluxform: fix a few initialisation isssues
792  o profiles: fix for multithreaded case  o profiles: fix for multithreaded case
793    

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