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revision 1.662 by mlosch, Tue May 30 22:49:21 2006 UTC revision 1.984 by gforget, Tue Apr 29 21:43:54 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 pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
8    o pkg/obcs: change default to OBCSfixTopo = .true.,
9      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
10      - replace "debugMode" with "debugLevel .GE. debLevB"
11    o implementation of TAF directives for gchem,cfc,dic
12    o remove "exp5" (replaced by tutorial_deep_convection).
13    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
14      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
15      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
16      --> changes results in exp4, seaice_obcs
17    o tutorial_deep_convection :
18      update the set-up and increase resolution and domain size ; start
19      from pseudo initial conditions = output at t=120mn in order to see
20      something happening when running testreport.
21    o pkg/seaice: add os7mp as an advection scheme
22                  add check for advection schemes
23                  add a flag for restoring T and S underneath sea ice
24    o pkg/my82: add netcdf-support and diagnostics
25    o thsice pkg:
26      - Now hsMax limits snow height by turning it into ice following
27        flooding scheme (and now conserving energy)
28      - Slight rewriting of the formula in thsice_calc_thick.F
29      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
30      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
31    
32    checkpoint59p
33    o gchem / dic / cfc :
34      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
35      - add new parameter files: "data.dic" & "data.cfc" ;
36      - various re-arrangement in initialisation & header file ;
37      - fix tutorial_global_oce_biogeo for multi-threaded test.
38    o pkg/dic: test for "pickup_dic" file when restarting ;
39      if no pickup-file, can restart with a re-initialised pH (same as it did
40      before) providing pickupStrictlyMatch is set to False.
41    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
42      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
43    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
44      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
45    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
46     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
47       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
48    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
49       scheme to use for vorticty-term ;
50     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
51       (with default selectVortScheme, return to original discretisation)
52     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
53    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
54    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
55      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
56      also fix diagnostics VISCAHW & VISCA4W.
57    
58    checkpoint59o
59    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
60    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
61      move a few statemens out the main loop into separate loops
62    o pkg/shelfice:
63      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
64        (kg/m^2/s), does not break tests, because in verification/isomip,
65        rhoConstFresh=rhoConst (by accident)
66      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
67      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
68        new file model/src/seawater.F, so that they are available for all pkgs.
69      - convert potential temperature into in-situ temperature. This changes the
70        isomip tests => update tests
71    o add a flag writePickupAtEnd (default=true) to be able to suppress
72      writing a pickup at the last timestep
73    o tools/mpack-1.6 :
74      - disable automake (not working) and autoconf (not needed).
75      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
76        also cleaner with much less compilation warnings.
77    o pkg/profiles:
78      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
79      (for "less than 32 characters name" compiler requirement)
80    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
81      conditions that have a different sampling frequency than S/T/U/V obcs
82    o pkg/diagnostics (stats-diags):
83      - fix global Min/Max in case 1 processor get only empty tiles
84    o genmake2: replace (4 times)
85         make genmake_tc_1.o >> genmake_warnings 2>&1
86      with
87         COMM="$CC $CFLAGS -c genmake_tc_1.c"
88         echo $COMM >> genmake_warnings
89         $COMM >> genmake_warnings 2>&1
90      to make genmake2 always see the value of CC as specified in the optfile.
91    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
92      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
93      - modify verification advect_cs test to test SOM-advection on CS-grid.
94    o pkg/ctrl:
95      - Rewrite of ctrl_map_ini_ecco.F,
96        introducing a generic routine (ctrl_map_ini_gen.F).
97      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
98    
99    checkpoint59n
100    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
101      number in dedicate array "hdiag":
102      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
103        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
104      - many small changes (integer format) for large number of diagnostics
105      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
106        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
107    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
108      usingSphericalGrid, this allows to define the rotated grid coordinates
109      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
110      geographical coordinates according to the inverse of the rotation defined
111      by the Euler angles, so that Coriolis parameter and online-interpolation by
112      exf works with the geographical coordinates on XC/YC/XG/YG.
113      Naturally, this feature does not work with all packages, so some
114      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
115      profiles), because there the coordinates are assumed to be regular
116      spherical grid coordinates.
117    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
118      - introduce isopycnal diffusion coefficient control.
119    o tools/adjoint_options:
120      - additional control vector components.
121    o pkg/mnc: have mnc create marginally meaning full coordinate variables
122      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
123    o pkg/mypackage:
124      - add example of read/write pickup for state-var ;
125      - add entry points to the main code for state-vars diags & write-pickup.
126    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
127      transitions for useExfYearlyFields
128      - add new subroutine that determines the file to read from for
129        use*YearlyFields = .TRUE. and .FALSE.
130      - add a verification experiment to global_with_exf that tests
131        useExfYearlyFields with USE_EXF_INTERPOLATION defined
132    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
133      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
134      subroutines (which could be generated from a template, because they are
135      almost identical), for now they are included in obcs_prescribe_read.F for
136      simplicity
137    o pkg/exf:
138      - add a little more diagnostic to exf_interp_read (in analogy to
139        mds_read_field, can be turned off with debugLevel < debugLevA=1)
140      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
141        ugly but fast by unrolling short inner loops, inserting a unroll=8
142        directive in routine lagran, and splitting a loop and making do while the
143        outermost loop (the latter requires the intoduction of index arrays)
144    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
145    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
146      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
147    o verification/seaice_obcs: updated for restart test and latest options
148    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
149      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
150      for now this is only available for the C-grid code and also within
151      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
152    
153    checkpoint59m
154    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
155      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
156    o gad_som : fix flux output (& diagnostics) to have same units as other  
157      advection scheme fluxes (was previously multiplied by deltaT).  
158    o added verification/seaice_obcs both to test seaice open boundaries
159      and to provide an example matlab scrpt for generating them
160    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
161    o pkg/salt_plume: clean up salt_plume_frac.F to
162      remove redundancy in PlumeMethod 1 and 4
163    o pkg/kpp: added saltplume diagnostics
164    o pkg/obcs and pkg/seaice:
165      - do not set uice and vice to zero when OB*icefile are unspecified
166      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
167      - moved seaice tracer obcs after call to seaice_growth
168    o pkg/salt_plume: added various options for salt plume depth
169      criterion and for vertical distribution of the salt
170    
171    checkpoint59l
172    o pkg/ptracers: new version of ptracers pickup:
173      read meta file and write only fields which are needed to restart.
174      ( same logic as main pickup file ; also using pickupStrictlyMatch )
175    o pkg/seaice:
176      - add timescale for melting due to warm mixed layer as a means of
177        setting SEAICE_availHeatFrac more conveniently
178      - add a CPP-flag/runtime parameter check for flooding algorithm
179      - reformulated availHeat in seaice_growth.F to be independent of AREA
180    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
181      unit changes
182    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
183    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
184      SX vector computer.
185    o pkg/seaice:
186      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
187        seaice forcing fields can now be read only through pkg/exf
188      - removed some unused halos
189    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
190    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
191      or U/VICE from U/VWIND before computing U/VSTRESS
192    
193    checkpoint59k
194    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
195      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
196    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
197      all experiments pass when compile with un-initialised var. checking option.
198    o added pkg/salt_plume
199    o script to test restart (for now, in MITgcm_contrib/jmc_script)
200    o pkg/seaice: new read/write pickup version.
201      read meta file and write only fields which are needed to restart.
202      ( same logic as main pickup file ; also using pickupStrictlyMatch )
203    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
204    o lab_sea.hb87: modify the domain & update output.hb87.txt :
205      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
206      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
207      process. Fixed here by closing the domain at the Northern boundary.
208    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
209    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
210      a set of consecutive levels in/from a 3-D array.
211    o pkg/ptracers:
212      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
213      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
214    
215    checkpoint59j
216    o in pkgs: dic, obcs, offline, rbcs:
217      standard way to compute coeff. for time interpolation between 2 time reccords
218      which retains full precision (& make results less dependent on compiler).
219      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
220    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
221      packages instead of reading ice cover and wind speed separately
222    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
223     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
224      to allow to compile customized code before the update)
225    o cleaning-up:
226      - fix CPP instruction syntax in pkg/obcs
227      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
228        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
229      - fix some threads issue in IO parts.
230    o pkg/dic:
231      - add tons of "_d 0" (--> much better testreports !)
232       and then update outputs of tutorial_global_oce_biogeo
233    o pkg/mom_fluxform:
234      add a special version of momentum advection intended to conserve momentum
235      next to a bathymetry step or a coastline edge. (default = off = #undef)
236    o new read/write pickup version:
237      - for now, only implemented for main (mdsio) pickup file.
238      - write out only what is needed to restart; merge pickup_nh , pickup_ph
239        and main pickup together.
240      - read meta file; read only what is needed to restart; stop if a field
241        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
242        if it make sense (even if the restart is not perfect).
243      - if no meta file, assume that pickup to read corresponds exactly to
244        a pickup that would currently be written.
245      - read pickup written in the old format (until checkpoint59i) if it
246        recognizes an old meta file (no field-list).
247      - add a meta file in exp. which starts from a pickup: 2 cases:
248        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
249         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
250        b) a meta file describing the content of the associated pickup file
251         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
252    o pkg/mdsio & pkg/rw:
253      - new routine to read a meta file ; new set of routine to read
254        Multiple-fields file (with meta file).
255    o added open boundary conditions capability for seaice
256        HSNOW, HSALT, UICE, and VICE
257    
258    checkpoint59i
259    o adjoint:
260      * fix multiDimAdvection adjoint
261        (partial recomputation problem by TAF for fVerT(:,:,kDown)
262        and comlev1 size definition (maxpass vs. max. number of tracers)
263      * verification/global_ocean.90x45x15 adjoint now tests
264        NLFS and multiDimAdvection using DST3 (=30)
265      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
266    o pkg/kpp: add "_d 0" to real constant (if missing);
267      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
268      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
269    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
270      for internal parameters related to restart process (formerly from PARAMS.h)
271      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
272    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
273      as argument. (only atm2d & obcs write_pickup have not yet been updated)
274    o pkg/monitor:
275      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
276      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
277      - account for deep Atmosphere factor and density factor (anelastic)
278    o added open boundary conditions capability for seaice HEFF and AREA
279    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
280      thermodynamics
281      - requires a little reorganization, which affects the testreport results
282        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
283        so that now the conservative form is tested
284      - add a few comments
285    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
286    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
287    o add new diagnostics to seaice: advective, diffusive fluxes (only for
288      multidim-advection, for scheme 2 they are not filled) and transports,
289      thermodynamic growth rates
290    o change units of EmPmR (inside the code, + within coupling interface)
291      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
292      Affects results @ truncation level (cg2d match) and update output of
293       experiments: lab_sea(6), global_ocean.90x40x15(10),
294      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
295      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
296      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
297      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
298    
299    checkpoint59h
300    o pkg/exf:
301      - improve vectorization by moving if-statement out of loops in
302        exf_mapfields, exf_radiation
303      - exf_bulkformulae.F: introduce 2D fields and vectorize code
304    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
305    o testreport:
306      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
307        monitor & update offline_exf_seaice exp. output.
308      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
309    o pkg/seaice:
310      - bug fix in the evp solver: boundary conditions were affected be
311        masking of zMax/zMin (changes results)
312      - minor bug fix in boundary conditions in seaice_calc_strainrates
313        (changes results for no_slip)
314      - seaice_lsr.F: make interpolation of eta dependent on boundaries
315      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
316      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
317        stress formulation and no-slip boundary conditions
318    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
319      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
320    o pkg/seaice: a first HSALT time stepping equation has been checked in
321    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
322      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
323      without requiring DO-IF statements
324    o pkg/thsice:
325      use continuous power-law function for partition of energy between lateral
326      melting/freezing and thinning/thickening ; old code using step function
327      still available with #undef THSICE_FRACEN_POWERLAW
328      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
329    o testreport: change AD testing : check against results/output_adm.txt
330      using same scripts as for forward test.
331    
332    checkpoint59g
333    o adjoint testing: in preparation for changing testreport:
334      - output format: cost and grad written on separated lines
335      - ad output results in directory "results" (instead of "results_ad")
336    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
337    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
338    o pkg/ecco: allow user defined cost function contributions
339    o testreport:
340      Allow to choose (per experiment) the list of tested output variables
341       and the main variable (used to issue a pass/FAIL ) ;
342      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
343      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
344      Also modify printing of summary:
345       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
346       b) echo the list of tested variables in the individual summary.txt of
347          each experiment.
348    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
349      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
350      (but still depend on the tile decompostion of the domain).
351    o pkg/seaice: change a discretization detail to make the B-grid code
352      "more symmetric". This change is likely to remove all "ridges/leads" that
353      where quasi-aligned with the grid in B-grid solutions. It may also be
354      the solution to the stress coupling issues with the B-grid.
355    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
356      remove .cvsignore from input dir. (since testreport no longer run here).
357    o pkg/thsice:
358     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
359     - fix reshaping of sea-ice just after advection:
360       melt all the ice only if ice-volume is too small.
361     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
362       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
363     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
364    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
365      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
366    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
367      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
368      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
369      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
370      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
371      -> update output.txt
372    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
373     this affects truncation error: -> update output.txt of exp:
374      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
375      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
376    
377    checkpoint59f
378    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
379    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
380      a bounded range (in forward mode)
381    o pkg/ecco, ctrl, autodiff and mom_common:
382     internal parameter controls, completements of implementations
383    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
384    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
385      (not seem any difference in testing results).
386    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
387       at face corners.
388    o pkg/generic_advdiff:
389     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
390      loop range indices for computing vertical advection tendency
391      and do the calculation in the interior only (no overlap) ;
392      for now, only implemented for SOM advection (to save CPU time).
393     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
394    o exch2 adjoint
395      First set of changes:
396      - add exch2 hand-written adjoint templates
397      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
398        This will require cleanup in pkg/autodiff/*.F
399        (changed routines currently kept separate in verif. code/)
400      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
401        that used to hide exch2 or cubed-sphere specific code
402        (commented via 'cph-exch2')
403    o pkg/seaice
404      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
405    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
406       output of global_ocean.cs32x15.thsice .
407    
408    checkpoint59e
409    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
410      for B-grid vector (not yet tested) and C-grid vector (<- only used
411      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
412    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
413      (#ifdef ALLOW_SALT_PLUME)
414    o gather_2d/scatter_2d: removed halo regions
415    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
416      scheme and the corresponding test case (under front_relax dir). For now,
417      only available with Skew-flux form and not yet tested in realistic set-up.
418      adjoint: store directives updated, but gradient checks deteriorated,
419      so maybe GM/Redi adjoint is now broken.
420    o seaice adjoint
421      * add AREA, HEFF, HSNOW as control variable
422        (should not change lab_sea results)
423      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
424    o pkg/seaice:
425      * added computation of saltFlux in seaice_growth;
426        For time being, sea ice salinity is assumed constant
427        contribution of snow flooding to freshening of sea ice is neglected.
428        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
429        defaults to 0.0 in order to maintain backward compatibility.
430        Typical values for SEAICE_salinity are 4 to 10 g/kg.
431      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
432      * added SEAICE_availHeatFrac, which specifies fraction of surface level
433        heat content used to melt or grow ice
434      * commented out cap of HICE: it helps keep ice thinner
435      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
436      * applied OBCS T/S mask to HEFFM sea ice mask
437    
438    checkpoint59d
439    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
440     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
441     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
442    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
443     and change default value of parameter "GM_Small_Number";
444     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
445       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
446       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
447    o pkg/ecco: cost function when applying pkg/smooth to controls
448    o pkg/ctrl: add forcingPrecond run time parameter
449    o pkg/seaice:
450     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
451     - fix bug in metric terms of u-equation in LSR solver (implicit part),
452       changes verification/lab_sea
453     - rearrange implicit part of u-equation in LSR solver to make it easier to
454       read, understand, and debug. This causes changes at the truncation level.
455     - fix (serious) bug in the boundary conditions (sign error in the implicit
456       part) of the LSR solver. Changes all LSR results.
457     - fixed problem with HSNOW initialization to avoid thick snow when AREA
458       is initilized with small values - does not change lab_sea results.
459     - added HsnowFile initialization capability
460    o pkg/smooth: addition to model/src and pkg/ctrl so allow
461     initialization of pkg/smooth and application to control vector
462    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
463    o dependencies: pkg/profiles requires pkg/cal
464    o pkg/profiles:
465     - added option ALLOW_PROFILES_GENERICGRID
466         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
467         that interpolation information (grid points and coefficients) is provided
468         within the netcdf input files.
469         -> sample matlab scripts can be found in MITgcm_contrib/gael
470         that allow you to prepare netcdf input files.
471     - also modified: cleaner include statements, cleaner error print statements,
472       cleaner stops when error, and more tests of the netcdf input files consistency.
473    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
474    o pkg/seaice:
475     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
476       requires a new routine: seaice_diagnostics_fill.F
477     - make sure that seaice does not move if not forced (pressure replacement
478       method, Hibler and Ip, 1995), changes results
479     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
480     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
481       It is turned off by default (=-1.), because it changes the results.
482     - make it possible to read AREA from a file, too.
483    
484    checkpoint59c
485    o add S/R and diagnostics for oceanic mixed-layer depth
486    o move GMRedi call after all vertical mixing schemes (including KPP)
487    o pkg/thsice:
488     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
489      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
490    o pkg/obcs:
491     - bug fix for balance code
492    o pkg/seaice:
493      - allow values of SEAICE_elasticParm > 1
494      - add new parameter SEAICE_evpTauRelax as an alternative
495        to SEAICE_elasticParm
496      - make lsr boundary conditions free slip (by default), changes result
497      - add code for no slip boundary conditions for lsr
498      - set minimum of zeta to zero (and not 4e8) (changes results)
499      - add a cap on AREA after advecting AREA if seaice_growth is not called
500    o change calculation of Visbeck K:
501      - no longer depend on tapering scheme; instead, compute slope (limited
502        by GM_maxSlope). this is equivalent to what was comuted before with
503        clipping or linear tappering.
504      - fix vertical averaging (wrong by 1/2 level)
505      - leave the old version (but will not be maintained) within
506        #ifdef OLD_VISBECK_CALC / #endif
507      - update output of exp. ideal_2D_oce
508    o change error catch in calc_r_star to improve vectorization
509    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
510      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
511    o adjoint:
512      Re-organized adjoint checkpointing according to Matt Mazloff
513      (but with modifs/completions/cleanups)
514      Storing is now bundled into large arrays to optimized I/O
515      (and second step in cleanup of the_main_loop)
516    
517    checkpoint59b
518    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
519      - export/import (between ocean & coupler) fields needed for ocean DIC.
520    o pkg/seaice:
521      - get rid of three more exchanges seaice_calc_viscosities (required
522        different loop boundaries in seaice_lsr and seaice_ocean_stress)
523      - bug fix in seaice_ocean_stress (update of lab_sea required)
524      - reduce loop boundaries to necessary minimum also in seaice_evp
525      - go back to the old way of computing deltaC/Z as the adjoint likes that
526        better
527    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
528      passive tracer to an Age Tracer) + update output.txt
529    o pkg/exf:
530      - implement A-grid / C-grid selection for wind-stress input files.
531      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
532      for now, in exf_bulk_largeyeager04.F only :
533      - change implementation for case where windspeed + 2. components wind-stress
534        are read-in. AND use rhoConstFresh to convert evap.
535    o pkg/seaice:
536      - use correct EXCH_UV for wind-forcing (on A-grid).
537      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
538        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
539    o pkg/exf:
540      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
541      EXF_INTERPOLATION:
542      - merge global_with_exf/code version of exf_interp_read.F
543        to the main code ;
544      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
545        reading the file ; Important: This options needs to be defined to recover
546        previous code.
547        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
548      - no longer loose real*8 precision along the way when using exf_iprec=64.
549    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
550      - change discretisation of evp-solver in order to avoid another exchange
551        (changes lab_sea) and clean up a little
552      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
553        help the adjoint (this also changes the results slightly)
554      - add a few "_d 0" where they had been missing in seaice_evp.F
555      - cleaning up: remove unused seaice_calc_rhs.F
556    o pkg/exf: some cleaning-up:
557      - change various "constants" into runtime parameters
558      - cleaned-up Large&Yeager04 routine which should eventually
559        replace exf_bulkformulae.F (changed names of S/R and CPP)
560        and merged various ALLOW_ATM_WIND options
561     only used with thsice pkg (in thsice_get_exf.F):
562      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
563        which are used when useStabilityFct_overIce=TRUE (= the default)
564      - change default values of ice & snow emissivity and scale downward LW
565        by ice & snow emissivity.
566    o pkg/thsice:
567     fix few little problems, in thsice_calc_thickn.F:
568      - growth vertically (and not laterally) if iceFrac == iceMaskMax
569      - melt only laterally if hIce < hThinIce (as the comments say)
570      and in thsice_extend.F:
571      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
572      - start to form ice as soon as the minimum ice-volume is reachable.
573     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
574      and cpl_aim+ocn
575    o pkg/kpp
576     - move computation of surface related input fields to KPP into a new
577       subroutine kpp_forcing_surf.F
578     - remove wrong (within bi,bj loops) EXCH calls.
579     - little cleaning (add argument myThid in last position, cvs header ...)
580     - for now, fix conservation problem by exchanging KPPviscAz (may not
581       be the best fix)
582    o pkg/seaice
583     - check for inconsistent evp parameter/cpp-flag combination
584     - remove leftover errIO flat for obsolete name list error handling
585    o OpenAD
586     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
587    
588    checkpoint59a
589    o pkg/seaice: some parameter clarifications and a little bit of clean up
590    o pkg/thsice: rename run-time parameters:
591       himin       -> hIceMin
592       himin0      -> hThinIce
593       hihig       -> hThickIce
594       i0          -> i0swFrac
595       transCoef   -> bMeltCoef
596       frac_energy -> fracMelting
597      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
598       with default values (for now) that do not change the results.
599      remove old version of thsice vars advection in pkg/seaice.
600    o in FFIELDS.h:
601      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
602      - make pLoad & sIceLoad always available (but still only used if
603         ATMOSPHERIC_LOADING is #define).
604    o pkg/kpp: replaced _KPP_RL with _RL
605    o bug fixes for vertical diffusivity computations when both KPP and
606        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
607        are no longer updating the vertical diffusivity array
608        (passed as argument) but are (re-) setting those arrays.
609    o pkg/seaice: fix bug in evp solver, while doing that
610      - change (improve?) discretization of stress computations for both
611        cgrid-lsr and evp solver
612      - add a new routine to compute strain rates
613      - the above changes lab_sea results
614      - add no slip conditions for evp solver (off by default), lsr-version
615        may follow
616      - fix exchange for shear at Z-points (does not change lab_sea)
617      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
618        (to force the user to pick a time step since there is not "safe" way
619        of choosing it)
620      - add principal stress diagnostics
621      - rearrange fields for evp a little to avoid having to call a: too many
622        exchanges and b: exchanges for stress trensor components which we do
623        not have.
624      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
625        of evp, complete rewrite for lsr case (latter is does not yet work
626        in all cases)
627    o pkg/kpp: add code to have mixing in shelf ice caverns
628      - add myThid to all kpp routines (long overdue)
629    
630    checkpoint59
631    o pkg/exf:
632      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
633        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
634      - move exf header files from lower_case.h to UPPER_CASE.h ;
635        add missing cvs Header & Name
636      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
637      - add namelist param. selectStressGridPosition, exf_monFreq
638      - retire many _CLIM routines, and remove data.exf_clim
639        + params moved to data.exf
640        + climsst, climsss now handled by exf_set_gen, i.e.
641          climss?period=0 refers to constant field,
642          climss?period=-12 to monthly forcing
643      - split up namelists in data.exf
644    o pkg/seaice:
645      - remove seaice_exch and seaice_exch_uv
646      - remove superfluous exchange of theta
647      - add myThid to seaice_budget_ocean/ice
648      - add new interface for atmospheric wind forcing (C-grid only)
649        + new routine
650        + two new field (taux, tauy for stress over ice)
651        + removed one global field (DAIRN) for C-grid case only
652    o pkg/thsise
653      - 2nd set of modifs for thsice adjoint in conjunction with exf
654    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
655    
656    checkpoint58y_post
657    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
658      vertical diffusivity, similar to that in MOM4; turned on using
659      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
660      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
661    o Added capability for 3D specification of background vertical diffusion
662      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
663      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
664      "data" file that contains the 3D vertical diffusivity coefficients.
665    o ice dynamics (pkg/seaice) with thsice thermodynamics:
666      - add code within pkg thsice to advect & diffuse sea-ice fields
667      similar to (and will replace) what has been added in  seaice_advdiff.F,
668      but: - conserving Mass, Heat & Salt.
669           - better when using non-linear advection scheme (not yet fully tested)
670           - can also be used in atmospheric set-up (for now, only the diffusion).
671    
672    checkpoint58x_post
673    o IO option for global-file compact format:
674      - add options when generating topology (utils/exch2/matlab-topology-generator)
675      - add I/O capability (pkg/mdsio).
676      - adapt utils/matlab/rdmds.m to read this format.
677      for now long-line format not yet supported by pkg/mdsio (& exch2).
678    o shelfice: add a few diagnostics
679    
680    checkpoint58w_post
681    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
682      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
683      (and replace horiVertRatio in NH code).
684      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
685                         and tutorial_plume_on_slope (sensitive to truncation)
686    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
687      directly to drive seaice model (C-grid only)
688    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
689     - reintroduce computation of wind from stress,
690     - compute tau (in exf_bulkformulae.F) from windstress averaged to
691       mass points to avoid tau = 0
692     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
693    o rdmnc.m: make it work with "global" files created with gluemnc
694    o rdmnc.m : some improvements in dealing with singleton dimension
695      (tested on all testreport mnc output files).
696    o genmake2: disable pkg/profiles if netcdf test fails.
697    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
698    o move call to cal_readparms up to make calendar parameters/variable available
699      to all packages
700    
701    checkpoint58v_post
702    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
703      useDynP_inEos_Zc tested.
704    o pkg/exf: changes to properly interpolate/mask/scale initial fields
705    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
706      and portions thereof.  See read_cs.txt for description and examples.
707    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
708      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
709      following the great-circle arc between those 2 points.
710    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
711      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
712    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
713     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
714     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
715     - still needs work (not working with some options ; efficiency to improve)
716       and serious testing.
717     - use this scheme for temperature & salinity in 2 advection test exp.:
718       advect_xy & advect_xz, respectively.
719    
720    checkpoint58u_post
721    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
722    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
723    o testreport: add option "-skipdir" to skip some test.
724    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
725      momentum calculation.
726    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
727    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
728      remove checkpoint.F and the_correction_step.F (no longer used);
729      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
730    o add option (linFSConserveTr) to correct for tracer source/sink due to
731      Linear Free surface
732    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
733    o pkg/thsice: fix reading mnc-pickups
734    
735    checkpoint58t_post
736    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
737    o pkg/mdsio:
738     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
739       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
740       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
741     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
742     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
743       either MDS_READ_FIELD or MDS_WRITE_FIELD )
744     - new S/R (to replace MDSWRITEMETA), which allows to write more
745       informations (variable names, time ...) to meta files.
746     - modify rdmds.m to give back the meta file content.
747    o pkg/diagnostics: change vertical interpolation to be safer, and more
748       flexible (define p-levels to interpolate to in data.diagnostics);
749      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
750       diagnostic pointer.
751    o pkg/seaice: more cleaning up of seaice_growth, added many comments
752    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
753    o fix multi-category seaice:
754     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
755       SEAICE_MULTICATEGORY
756     - fix short wave heat flux
757    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
758       and allow to use EVP solver. Change forward lab_sea: test both EVP
759       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
760    o Initial check-in of lab_sea adjoint
761      (very similar to natl_box_adjoint/code_seaice)
762      * used C-grid and EVP solver
763      * used KPP, GM/Redi
764      * uses inAdExact=.TRUE.
765      * gradient checks fail for both ADM and TLM
766        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
767        f.d. gradients actually seem more problematic than ADM, TLM gradients;
768        issue is related to forward mismatch between g77 an ifort
769    o pkg/seaice: overhaul of thermodynamics
770     - growth.F and groatb.F are replaced by new routine seaice_growth.F
771     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
772     - move a few global fields out of SEAICE.h into seaice_growth.F and
773       make them 2D (FICE/QNETO/ ...)
774     - remove FO (it is the same as QNETO)
775     - introduce a few local fields to avoid modifying external fields such
776       as atemp, etc.
777    
778    checkpoint58s_post
779    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
780      changed exf_set_gen.F so that
781        genperiod=0 means input file is one time-constant field and
782        genperiod=-12 means input file contains 12 monthly means
783    o CG2D: use pre-computed solver main-diagonal (stored in common block);
784      this affects truncation error ; generate new output file for exp. which
785      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
786        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
787        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
788        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
789        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
790        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
791    o start implementation of deep-atmosphere and anelastic formulation
792    o verification: remove 2nd copy of input files and use script "prepare_run"
793      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
794    o mom_common/vecinv/fluxform: fix a few initialisation isssues
795    o profiles: fix for multithreaded case
796    
797    o diagnostics: rename few diags:
798      s/'PRESSURE'/'RCENTER '/g
799      s/'TICE    '/'oceFreez'/g
800      s/'TAUX    '/'oceTAUX '/g
801      s/'TAUY    '/'oceTAUY '/g
802      s/'SWFLUX  '/'oceQsw  '/g
803      s/DIFx/DFxE/g
804      s/DIFy/DFyE/g
805      and add few ocean-forcing diagnostics:
806      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
807    o modifications to pkg/seaice/growth.F and budget.F, which change results of
808      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
809      as actual snow thickness.  It now refers everywhere to effective snow
810      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
811    
812    checkpoint58r_post
813    o modifications to pkg/seaice/growth.F, which change results of
814      lab_sea experiment: fixes pertain to melting snow over open water, to
815      masking EVAP under sea ice, and to using the correct AREA variable for
816      computations of EVAP, PRECIP, HSNOW, and GHEFF
817    o add ability to read bathy, salt, and theta using MNC (off by def)
818    o add flooding algorithm and advection of HSNOW for pkg/seaice;
819      both are turned off by default and do no change any results
820    o seaice advection with pkg/thsice: a step toward the use of non-linear
821      advection scheme, but #ifdef or commented out for now (requires more EXCH).
822    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
823      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
824      in natl_box (affects results @ truncation level: update output.txt)
825    o multi-threading and IO:
826      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
827      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
828        (needed to work with SingleCpuIO): tested in all verif. exp.
829    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
830      affects the results (but none of the verification test uses this scheme).
831    o Adding some pkg/diagnostics capability to pkg/seaice
832      (will certainly be subject to changes)
833    o ctrl: adding new control variables:
834      lwflux, lwdown, evap, snowprecip, apressure, runoff
835    
836    checkpoint58q_post
837    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
838      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
839      high_res_cube configuration by 4% on Columbia.
840    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
841      add (in global_with_exf/code) a version of EXF_INTERP_READ without
842      dynamical allocation (seems to work in multi-threaded).
843    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
844      single CPU io) so that TAF does not have to see EESUPPORT.h
845    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
846    
847    checkpoint58p_post
848    o obcs: stop if obcs is used with useCDscheme = .true.
849    o shelfice:
850     - fix a sign error so that no slip at shelfice interface works
851     - remove stop for combination non-hydrostatic code and shelfice. That does
852       not mean, that the results are correct, but at least they are numerically
853       stable
854    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
855    o added adjoint exch routined for all exch*3d* routines
856      and updated flow directives
857    
858    checkpoint58o_post
859    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
860      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
861    o change controling S/R for writing pickup file (new S/R do_write_pickup)
862      and clean-up reading/writing of pickup files.
863    o fix local version of read/write pickup (NH part) in rotating_tank/code
864    o simplify EXCH interface:
865     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
866     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
867    o added the regrid package
868    o shelfice:
869     - add a simple boundary layer scheme to reduce noise
870     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
871    
872    checkpoint58n_post
873    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
874       local variable (not in common block).
875    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
876      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
877      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
878        to work with SingleCpuIO.
879    o add "_d 0" to real constant of pkg/cfc subroutines ;
880       update exp. cfc_exemple & tutorial_cfc_offline output files.
881    o multi-threading and IO:
882      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
883        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
884      - barrier before and after reading.
885      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
886      - avoid using MDS_WRITELOCAL for LAND pkg output.
887      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
888        common-block variables ; Allows multi-threading with master-thread IO.
889    o change default MAX_NO_THREADS from 32 to 4 ;
890      and stop cleanly when MAX_NO_THREADS is too small.
891    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
892    
893    checkpoint58m_post
894    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
895       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
896    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
897       keep global_ocean.90x40x15 (for AD testing) with former secondary test
898       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
899    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
900        add MITgcm_tutorials (= code + all the tutorials)
901    o ecco, option to compute cost for total ssh (mean+anom)
902    o consistent with addition of ptracer and ssh in pkg/profiles
903    o profiles: adding ptracer and ssh
904    o testreport: change multi-test output-file name
905      (from output.txt.{name} to output.{name}.txt)
906    o profiles: now ok for mutli-tiles case
907    o seaice: add 4 parameters for different advection schemes for area,
908      (effective) seaice thickness, enthalphy, and snow height. Their default
909      is the standard parameter SEAICEadvScheme
910    o calc_gw:
911     - add cosFacU in zonal viscous flux (harmonic.visc.).
912     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
913       of tutorial_plume_on_slope.
914    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
915    o calc_gw: true flux-form, account for horizontal grid spacing.
916      update rotating_tank results, but not plume_on_slope (affected at
917      truncation level, 11 digits).
918    
919    checkpoint58l_post
920    o calc_gw:
921     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
922     - remove side-drag for now (need to fix it); update plume_on_slope results.
923     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
924    o commit code to make SST/SSS weights spatially variable
925      (based on either variable in-situ or variable initial T/S weights)
926    o pkg/ecco:
927      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
928        now based on horizontally varying weights wthetaLev, wsaltLev
929      * cost_averagesflags now returns year indices in addition to day, month
930      * sflux balance is performed on annual basis
931        (sflxumm, sfluxmm2, bal_sfluxmm)
932      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
933        including separate counting and multipliers
934    o pkg/rbcs
935      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
936    
937    checkpoint58k_post
938    o testreport:
939     - always build in dir. "build" (if not there, mkdir build instead of building
940       & running in input)
941     - run in dir run (if it exists), in build otherwise.
942     - call prepare_run (if input/prepare_run exists)
943     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
944    o pkg/exf modifications to interpolation and rotation routines for more
945       reasonable treatment of North Pole singularity: for tracers North Pole
946       value is set to northernmost zonal-mean value, for zonal velocity it is
947       set to zero, and for meridional velocity it is set to northernmost value.
948    o pkg/exf/exf_check_range.F
949     - add tile index to diagnostics and move stop statement to the very
950       end of the routine.
951    o pkg/diagnostics: (diagnostics_main_init.F)
952      define title of isomorphic variables according to the current config.
953    o pkg/thsice with pkg/seaice dynamics:
954    - fix domain of computation (interior only, required for exf) and do exchanges
955    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
956    o towards a standard way of dealing with multi-threading in MONITOR
957      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
958    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
959       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
960    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
961    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
962    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
963       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
964    o tracer advection:
965     - clean-up and simplify calc_common_factors.F
966     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
967       advection subroutine (but still not used within DST advection S/R)
968    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
969    
970    checkpoint58j_post
971    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
972      from file (collects calls previously in FORWARD_STEP)
973    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
974    o adjoint store dir. adjusted accordingly
975    o genmake2
976      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
977    
978    checkpoint58i_post
979    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
980      on wind stress (SEAICEstressFactor defaults to 1.)
981    o Total number of Timers is finite (<=40): comment out 2 non-essential one
982      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
983    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
984      on CS-grid: no longer loosing mass.
985    o exf & curvilinear-grid: no longer modify longitude xC & xG.
986    o pkg/ggl90: fix sloppy output and fix a bug
987    o pkg/seaice: added SEAICEuseEVPpickup parameter
988      - Set to false in order to start EVP solver with
989        non-EVP pickup files when using SEAICEuseEVP
990      - fix sign error in diffusion in seaice_calc_rhs
991    
992    checkpoint58h_post
993    * Modifications for bottom topography control
994      o replace hFacC by _hFacC at various places
995      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
996      o add non-self-adjoint cg2d_nsa
997      o update autodiff support routines
998      o re-initialise hfac after ctrl_depth_ini
999      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1000    * Adding verification for 5x5 box (4-layer) bottom topography control
1001    
1002    checkpoint58g_post
1003    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1004       used for mean seasonal cycle, mean diurnal cycle); add an example
1005       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1006    o pkg/ggl90:
1007      - add parameter (minimum surface kinetic energy)
1008      - fix bug (avoiding division by zero)
1009    o couple pkg/thsice to pkg/seaice:
1010      - modify advection in seaice to accomodate new scalar fields to be advected
1011      - only muliDimAdection scheme work with seaice/thsice
1012      - mapping of thsice-variables to seaice-variables, back and forth
1013      - does not break the verification experiments, but does not give the
1014        desired results either
1015    o pkg/seaice
1016      - make (default) second order advection a bit less confusing?
1017    
1018    checkpoint58f_post
1019  o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice  o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1020    to pkg/seaice):    to pkg/seaice):
1021    - new routines thsice_map_exf and thsice_get_exf provide the interface    - new routines thsice_map_exf and thsice_get_exf provide the interface
# Line 16  o pkg/exf: Line 1028  o pkg/exf:
1028      exf_radiation, exf_wind      exf_radiation, exf_wind
1029    - add new parameters and constants: longwave emissivity for ocean, ice    - add new parameters and constants: longwave emissivity for ocean, ice
1030      and snow, evaporation parameters over ice      and snow, evaporation parameters over ice
1031      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1032        either wind from stress or stress from wind
1033  o pkg/thSIce:  o pkg/thSIce:
1034  - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F  - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1035  - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND  - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND

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