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revision 1.618 by jmc, Thu Mar 2 22:52:09 2006 UTC revision 1.970 by jmc, Sat Apr 5 21:37:08 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 add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
8      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
9    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
10     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
11       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
12    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
13       scheme to use for vorticty-term ;
14     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
15       (with default selectVortScheme, return to original discretisation)
16     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
17    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
18    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
19      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
20      also fix diagnostics VISCAHW & VISCA4W.
21    
22    checkpoint59o
23    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
24    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
25      move a few statemens out the main loop into separate loops
26    o pkg/shelfice:
27      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
28        (kg/m^2/s), does not break tests, because in verification/isomip,
29        rhoConstFresh=rhoConst (by accident)
30      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
31      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
32        new file model/src/seawater.F, so that they are available for all pkgs.
33      - convert potential temperature into in-situ temperature. This changes the
34        isomip tests => update tests
35    o add a flag writePickupAtEnd (default=true) to be able to suppress
36      writing a pickup at the last timestep
37    o tools/mpack-1.6 :
38      - disable automake (not working) and autoconf (not needed).
39      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
40        also cleaner with much less compilation warnings.
41    o pkg/profiles:
42      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
43      (for "less than 32 characters name" compiler requirement)
44    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
45      conditions that have a different sampling frequency than S/T/U/V obcs
46    o pkg/diagnostics (stats-diags):
47      - fix global Min/Max in case 1 processor get only empty tiles
48    o genmake2: replace (4 times)
49         make genmake_tc_1.o >> genmake_warnings 2>&1
50      with
51         COMM="$CC $CFLAGS -c genmake_tc_1.c"
52         echo $COMM >> genmake_warnings
53         $COMM >> genmake_warnings 2>&1
54      to make genmake2 always see the value of CC as specified in the optfile.
55    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
56      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
57      - modify verification advect_cs test to test SOM-advection on CS-grid.
58    o pkg/ctrl:
59      - Rewrite of ctrl_map_ini_ecco.F,
60        introducing a generic routine (ctrl_map_ini_gen.F).
61      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
62    
63    checkpoint59n
64    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
65      number in dedicate array "hdiag":
66      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
67        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
68      - many small changes (integer format) for large number of diagnostics
69      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
70        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
71    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
72      usingSphericalGrid, this allows to define the rotated grid coordinates
73      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
74      geographical coordinates according to the inverse of the rotation defined
75      by the Euler angles, so that Coriolis parameter and online-interpolation by
76      exf works with the geographical coordinates on XC/YC/XG/YG.
77      Naturally, this feature does not work with all packages, so some
78      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
79      profiles), because there the coordinates are assumed to be regular
80      spherical grid coordinates.
81    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
82      - introduce isopycnal diffusion coefficient control.
83    o tools/adjoint_options:
84      - additional control vector components.
85    o pkg/mnc: have mnc create marginally meaning full coordinate variables
86      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
87    o pkg/mypackage:
88      - add example of read/write pickup for state-var ;
89      - add entry points to the main code for state-vars diags & write-pickup.
90    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
91      transitions for useExfYearlyFields
92      - add new subroutine that determines the file to read from for
93        use*YearlyFields = .TRUE. and .FALSE.
94      - add a verification experiment to global_with_exf that tests
95        useExfYearlyFields with USE_EXF_INTERPOLATION defined
96    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
97      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
98      subroutines (which could be generated from a template, because they are
99      almost identical), for now they are included in obcs_prescribe_read.F for
100      simplicity
101    o pkg/exf:
102      - add a little more diagnostic to exf_interp_read (in analogy to
103        mds_read_field, can be turned off with debugLevel < debugLevA=1)
104      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
105        ugly but fast by unrolling short inner loops, inserting a unroll=8
106        directive in routine lagran, and splitting a loop and making do while the
107        outermost loop (the latter requires the intoduction of index arrays)
108    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
109    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
110      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
111    o verification/seaice_obcs: updated for restart test and latest options
112    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
113      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
114      for now this is only available for the C-grid code and also within
115      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
116    
117    checkpoint59m
118    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
119      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
120    o gad_som : fix flux output (& diagnostics) to have same units as other  
121      advection scheme fluxes (was previously multiplied by deltaT).  
122    o added verification/seaice_obcs both to test seaice open boundaries
123      and to provide an example matlab scrpt for generating them
124    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
125    o pkg/salt_plume: clean up salt_plume_frac.F to
126      remove redundancy in PlumeMethod 1 and 4
127    o pkg/kpp: added saltplume diagnostics
128    o pkg/obcs and pkg/seaice:
129      - do not set uice and vice to zero when OB*icefile are unspecified
130      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
131      - moved seaice tracer obcs after call to seaice_growth
132    o pkg/salt_plume: added various options for salt plume depth
133      criterion and for vertical distribution of the salt
134    
135    checkpoint59l
136    o pkg/ptracers: new version of ptracers pickup:
137      read meta file and write only fields which are needed to restart.
138      ( same logic as main pickup file ; also using pickupStrictlyMatch )
139    o pkg/seaice:
140      - add timescale for melting due to warm mixed layer as a means of
141        setting SEAICE_availHeatFrac more conveniently
142      - add a CPP-flag/runtime parameter check for flooding algorithm
143      - reformulated availHeat in seaice_growth.F to be independent of AREA
144    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
145      unit changes
146    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
147    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
148      SX vector computer.
149    o pkg/seaice:
150      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
151        seaice forcing fields can now be read only through pkg/exf
152      - removed some unused halos
153    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
154    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
155      or U/VICE from U/VWIND before computing U/VSTRESS
156    
157    checkpoint59k
158    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
159      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
160    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
161      all experiments pass when compile with un-initialised var. checking option.
162    o added pkg/salt_plume
163    o script to test restart (for now, in MITgcm_contrib/jmc_script)
164    o pkg/seaice: new read/write pickup version.
165      read meta file and write only fields which are needed to restart.
166      ( same logic as main pickup file ; also using pickupStrictlyMatch )
167    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
168    o lab_sea.hb87: modify the domain & update output.hb87.txt :
169      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
170      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
171      process. Fixed here by closing the domain at the Northern boundary.
172    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
173    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
174      a set of consecutive levels in/from a 3-D array.
175    o pkg/ptracers:
176      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
177      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
178    
179    checkpoint59j
180    o in pkgs: dic, obcs, offline, rbcs:
181      standard way to compute coeff. for time interpolation between 2 time reccords
182      which retains full precision (& make results less dependent on compiler).
183      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
184    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
185      packages instead of reading ice cover and wind speed separately
186    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
187     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
188      to allow to compile customized code before the update)
189    o cleaning-up:
190      - fix CPP instruction syntax in pkg/obcs
191      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
192        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
193      - fix some threads issue in IO parts.
194    o pkg/dic:
195      - add tons of "_d 0" (--> much better testreports !)
196       and then update outputs of tutorial_global_oce_biogeo
197    o pkg/mom_fluxform:
198      add a special version of momentum advection intended to conserve momentum
199      next to a bathymetry step or a coastline edge. (default = off = #undef)
200    o new read/write pickup version:
201      - for now, only implemented for main (mdsio) pickup file.
202      - write out only what is needed to restart; merge pickup_nh , pickup_ph
203        and main pickup together.
204      - read meta file; read only what is needed to restart; stop if a field
205        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
206        if it make sense (even if the restart is not perfect).
207      - if no meta file, assume that pickup to read corresponds exactly to
208        a pickup that would currently be written.
209      - read pickup written in the old format (until checkpoint59i) if it
210        recognizes an old meta file (no field-list).
211      - add a meta file in exp. which starts from a pickup: 2 cases:
212        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
213         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
214        b) a meta file describing the content of the associated pickup file
215         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
216    o pkg/mdsio & pkg/rw:
217      - new routine to read a meta file ; new set of routine to read
218        Multiple-fields file (with meta file).
219    o added open boundary conditions capability for seaice
220        HSNOW, HSALT, UICE, and VICE
221    
222    checkpoint59i
223    o adjoint:
224      * fix multiDimAdvection adjoint
225        (partial recomputation problem by TAF for fVerT(:,:,kDown)
226        and comlev1 size definition (maxpass vs. max. number of tracers)
227      * verification/global_ocean.90x45x15 adjoint now tests
228        NLFS and multiDimAdvection using DST3 (=30)
229      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
230    o pkg/kpp: add "_d 0" to real constant (if missing);
231      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
232      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
233    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
234      for internal parameters related to restart process (formerly from PARAMS.h)
235      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
236    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
237      as argument. (only atm2d & obcs write_pickup have not yet been updated)
238    o pkg/monitor:
239      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
240      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
241      - account for deep Atmosphere factor and density factor (anelastic)
242    o added open boundary conditions capability for seaice HEFF and AREA
243    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
244      thermodynamics
245      - requires a little reorganization, which affects the testreport results
246        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
247        so that now the conservative form is tested
248      - add a few comments
249    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
250    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
251    o add new diagnostics to seaice: advective, diffusive fluxes (only for
252      multidim-advection, for scheme 2 they are not filled) and transports,
253      thermodynamic growth rates
254    o change units of EmPmR (inside the code, + within coupling interface)
255      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
256      Affects results @ truncation level (cg2d match) and update output of
257       experiments: lab_sea(6), global_ocean.90x40x15(10),
258      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
259      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
260      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
261      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
262    
263    checkpoint59h
264    o pkg/exf:
265      - improve vectorization by moving if-statement out of loops in
266        exf_mapfields, exf_radiation
267      - exf_bulkformulae.F: introduce 2D fields and vectorize code
268    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
269    o testreport:
270      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
271        monitor & update offline_exf_seaice exp. output.
272      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
273    o pkg/seaice:
274      - bug fix in the evp solver: boundary conditions were affected be
275        masking of zMax/zMin (changes results)
276      - minor bug fix in boundary conditions in seaice_calc_strainrates
277        (changes results for no_slip)
278      - seaice_lsr.F: make interpolation of eta dependent on boundaries
279      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
280      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
281        stress formulation and no-slip boundary conditions
282    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
283      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
284    o pkg/seaice: a first HSALT time stepping equation has been checked in
285    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
286      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
287      without requiring DO-IF statements
288    o pkg/thsice:
289      use continuous power-law function for partition of energy between lateral
290      melting/freezing and thinning/thickening ; old code using step function
291      still available with #undef THSICE_FRACEN_POWERLAW
292      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
293    o testreport: change AD testing : check against results/output_adm.txt
294      using same scripts as for forward test.
295    
296    checkpoint59g
297    o adjoint testing: in preparation for changing testreport:
298      - output format: cost and grad written on separated lines
299      - ad output results in directory "results" (instead of "results_ad")
300    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
301    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
302    o pkg/ecco: allow user defined cost function contributions
303    o testreport:
304      Allow to choose (per experiment) the list of tested output variables
305       and the main variable (used to issue a pass/FAIL ) ;
306      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
307      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
308      Also modify printing of summary:
309       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
310       b) echo the list of tested variables in the individual summary.txt of
311          each experiment.
312    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
313      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
314      (but still depend on the tile decompostion of the domain).
315    o pkg/seaice: change a discretization detail to make the B-grid code
316      "more symmetric". This change is likely to remove all "ridges/leads" that
317      where quasi-aligned with the grid in B-grid solutions. It may also be
318      the solution to the stress coupling issues with the B-grid.
319    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
320      remove .cvsignore from input dir. (since testreport no longer run here).
321    o pkg/thsice:
322     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
323     - fix reshaping of sea-ice just after advection:
324       melt all the ice only if ice-volume is too small.
325     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
326       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
327     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
328    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
329      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
330    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
331      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
332      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
333      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
334      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
335      -> update output.txt
336    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
337     this affects truncation error: -> update output.txt of exp:
338      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
339      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
340    
341    checkpoint59f
342    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
343    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
344      a bounded range (in forward mode)
345    o pkg/ecco, ctrl, autodiff and mom_common:
346     internal parameter controls, completements of implementations
347    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
348    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
349      (not seem any difference in testing results).
350    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
351       at face corners.
352    o pkg/generic_advdiff:
353     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
354      loop range indices for computing vertical advection tendency
355      and do the calculation in the interior only (no overlap) ;
356      for now, only implemented for SOM advection (to save CPU time).
357     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
358    o exch2 adjoint
359      First set of changes:
360      - add exch2 hand-written adjoint templates
361      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
362        This will require cleanup in pkg/autodiff/*.F
363        (changed routines currently kept separate in verif. code/)
364      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
365        that used to hide exch2 or cubed-sphere specific code
366        (commented via 'cph-exch2')
367    o pkg/seaice
368      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
369    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
370       output of global_ocean.cs32x15.thsice .
371    
372    checkpoint59e
373    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
374      for B-grid vector (not yet tested) and C-grid vector (<- only used
375      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
376    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
377      (#ifdef ALLOW_SALT_PLUME)
378    o gather_2d/scatter_2d: removed halo regions
379    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
380      scheme and the corresponding test case (under front_relax dir). For now,
381      only available with Skew-flux form and not yet tested in realistic set-up.
382      adjoint: store directives updated, but gradient checks deteriorated,
383      so maybe GM/Redi adjoint is now broken.
384    o seaice adjoint
385      * add AREA, HEFF, HSNOW as control variable
386        (should not change lab_sea results)
387      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
388    o pkg/seaice:
389      * added computation of saltFlux in seaice_growth;
390        For time being, sea ice salinity is assumed constant
391        contribution of snow flooding to freshening of sea ice is neglected.
392        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
393        defaults to 0.0 in order to maintain backward compatibility.
394        Typical values for SEAICE_salinity are 4 to 10 g/kg.
395      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
396      * added SEAICE_availHeatFrac, which specifies fraction of surface level
397        heat content used to melt or grow ice
398      * commented out cap of HICE: it helps keep ice thinner
399      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
400      * applied OBCS T/S mask to HEFFM sea ice mask
401    
402    checkpoint59d
403    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
404     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
405     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
406    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
407     and change default value of parameter "GM_Small_Number";
408     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
409       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
410       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
411    o pkg/ecco: cost function when applying pkg/smooth to controls
412    o pkg/ctrl: add forcingPrecond run time parameter
413    o pkg/seaice:
414     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
415     - fix bug in metric terms of u-equation in LSR solver (implicit part),
416       changes verification/lab_sea
417     - rearrange implicit part of u-equation in LSR solver to make it easier to
418       read, understand, and debug. This causes changes at the truncation level.
419     - fix (serious) bug in the boundary conditions (sign error in the implicit
420       part) of the LSR solver. Changes all LSR results.
421     - fixed problem with HSNOW initialization to avoid thick snow when AREA
422       is initilized with small values - does not change lab_sea results.
423     - added HsnowFile initialization capability
424    o pkg/smooth: addition to model/src and pkg/ctrl so allow
425     initialization of pkg/smooth and application to control vector
426    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
427    o dependencies: pkg/profiles requires pkg/cal
428    o pkg/profiles:
429     - added option ALLOW_PROFILES_GENERICGRID
430         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
431         that interpolation information (grid points and coefficients) is provided
432         within the netcdf input files.
433         -> sample matlab scripts can be found in MITgcm_contrib/gael
434         that allow you to prepare netcdf input files.
435     - also modified: cleaner include statements, cleaner error print statements,
436       cleaner stops when error, and more tests of the netcdf input files consistency.
437    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
438    o pkg/seaice:
439     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
440       requires a new routine: seaice_diagnostics_fill.F
441     - make sure that seaice does not move if not forced (pressure replacement
442       method, Hibler and Ip, 1995), changes results
443     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
444     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
445       It is turned off by default (=-1.), because it changes the results.
446     - make it possible to read AREA from a file, too.
447    
448    checkpoint59c
449    o add S/R and diagnostics for oceanic mixed-layer depth
450    o move GMRedi call after all vertical mixing schemes (including KPP)
451    o pkg/thsice:
452     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
453      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
454    o pkg/obcs:
455     - bug fix for balance code
456    o pkg/seaice:
457      - allow values of SEAICE_elasticParm > 1
458      - add new parameter SEAICE_evpTauRelax as an alternative
459        to SEAICE_elasticParm
460      - make lsr boundary conditions free slip (by default), changes result
461      - add code for no slip boundary conditions for lsr
462      - set minimum of zeta to zero (and not 4e8) (changes results)
463      - add a cap on AREA after advecting AREA if seaice_growth is not called
464    o change calculation of Visbeck K:
465      - no longer depend on tapering scheme; instead, compute slope (limited
466        by GM_maxSlope). this is equivalent to what was comuted before with
467        clipping or linear tappering.
468      - fix vertical averaging (wrong by 1/2 level)
469      - leave the old version (but will not be maintained) within
470        #ifdef OLD_VISBECK_CALC / #endif
471      - update output of exp. ideal_2D_oce
472    o change error catch in calc_r_star to improve vectorization
473    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
474      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
475    o adjoint:
476      Re-organized adjoint checkpointing according to Matt Mazloff
477      (but with modifs/completions/cleanups)
478      Storing is now bundled into large arrays to optimized I/O
479      (and second step in cleanup of the_main_loop)
480    
481    checkpoint59b
482    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
483      - export/import (between ocean & coupler) fields needed for ocean DIC.
484    o pkg/seaice:
485      - get rid of three more exchanges seaice_calc_viscosities (required
486        different loop boundaries in seaice_lsr and seaice_ocean_stress)
487      - bug fix in seaice_ocean_stress (update of lab_sea required)
488      - reduce loop boundaries to necessary minimum also in seaice_evp
489      - go back to the old way of computing deltaC/Z as the adjoint likes that
490        better
491    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
492      passive tracer to an Age Tracer) + update output.txt
493    o pkg/exf:
494      - implement A-grid / C-grid selection for wind-stress input files.
495      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
496      for now, in exf_bulk_largeyeager04.F only :
497      - change implementation for case where windspeed + 2. components wind-stress
498        are read-in. AND use rhoConstFresh to convert evap.
499    o pkg/seaice:
500      - use correct EXCH_UV for wind-forcing (on A-grid).
501      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
502        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
503    o pkg/exf:
504      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
505      EXF_INTERPOLATION:
506      - merge global_with_exf/code version of exf_interp_read.F
507        to the main code ;
508      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
509        reading the file ; Important: This options needs to be defined to recover
510        previous code.
511        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
512      - no longer loose real*8 precision along the way when using exf_iprec=64.
513    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
514      - change discretisation of evp-solver in order to avoid another exchange
515        (changes lab_sea) and clean up a little
516      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
517        help the adjoint (this also changes the results slightly)
518      - add a few "_d 0" where they had been missing in seaice_evp.F
519      - cleaning up: remove unused seaice_calc_rhs.F
520    o pkg/exf: some cleaning-up:
521      - change various "constants" into runtime parameters
522      - cleaned-up Large&Yeager04 routine which should eventually
523        replace exf_bulkformulae.F (changed names of S/R and CPP)
524        and merged various ALLOW_ATM_WIND options
525     only used with thsice pkg (in thsice_get_exf.F):
526      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
527        which are used when useStabilityFct_overIce=TRUE (= the default)
528      - change default values of ice & snow emissivity and scale downward LW
529        by ice & snow emissivity.
530    o pkg/thsice:
531     fix few little problems, in thsice_calc_thickn.F:
532      - growth vertically (and not laterally) if iceFrac == iceMaskMax
533      - melt only laterally if hIce < hThinIce (as the comments say)
534      and in thsice_extend.F:
535      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
536      - start to form ice as soon as the minimum ice-volume is reachable.
537     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
538      and cpl_aim+ocn
539    o pkg/kpp
540     - move computation of surface related input fields to KPP into a new
541       subroutine kpp_forcing_surf.F
542     - remove wrong (within bi,bj loops) EXCH calls.
543     - little cleaning (add argument myThid in last position, cvs header ...)
544     - for now, fix conservation problem by exchanging KPPviscAz (may not
545       be the best fix)
546    o pkg/seaice
547     - check for inconsistent evp parameter/cpp-flag combination
548     - remove leftover errIO flat for obsolete name list error handling
549    o OpenAD
550     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
551    
552    checkpoint59a
553    o pkg/seaice: some parameter clarifications and a little bit of clean up
554    o pkg/thsice: rename run-time parameters:
555       himin       -> hIceMin
556       himin0      -> hThinIce
557       hihig       -> hThickIce
558       i0          -> i0swFrac
559       transCoef   -> bMeltCoef
560       frac_energy -> fracMelting
561      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
562       with default values (for now) that do not change the results.
563      remove old version of thsice vars advection in pkg/seaice.
564    o in FFIELDS.h:
565      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
566      - make pLoad & sIceLoad always available (but still only used if
567         ATMOSPHERIC_LOADING is #define).
568    o pkg/kpp: replaced _KPP_RL with _RL
569    o bug fixes for vertical diffusivity computations when both KPP and
570        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
571        are no longer updating the vertical diffusivity array
572        (passed as argument) but are (re-) setting those arrays.
573    o pkg/seaice: fix bug in evp solver, while doing that
574      - change (improve?) discretization of stress computations for both
575        cgrid-lsr and evp solver
576      - add a new routine to compute strain rates
577      - the above changes lab_sea results
578      - add no slip conditions for evp solver (off by default), lsr-version
579        may follow
580      - fix exchange for shear at Z-points (does not change lab_sea)
581      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
582        (to force the user to pick a time step since there is not "safe" way
583        of choosing it)
584      - add principal stress diagnostics
585      - rearrange fields for evp a little to avoid having to call a: too many
586        exchanges and b: exchanges for stress trensor components which we do
587        not have.
588      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
589        of evp, complete rewrite for lsr case (latter is does not yet work
590        in all cases)
591    o pkg/kpp: add code to have mixing in shelf ice caverns
592      - add myThid to all kpp routines (long overdue)
593    
594    checkpoint59
595    o pkg/exf:
596      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
597        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
598      - move exf header files from lower_case.h to UPPER_CASE.h ;
599        add missing cvs Header & Name
600      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
601      - add namelist param. selectStressGridPosition, exf_monFreq
602      - retire many _CLIM routines, and remove data.exf_clim
603        + params moved to data.exf
604        + climsst, climsss now handled by exf_set_gen, i.e.
605          climss?period=0 refers to constant field,
606          climss?period=-12 to monthly forcing
607      - split up namelists in data.exf
608    o pkg/seaice:
609      - remove seaice_exch and seaice_exch_uv
610      - remove superfluous exchange of theta
611      - add myThid to seaice_budget_ocean/ice
612      - add new interface for atmospheric wind forcing (C-grid only)
613        + new routine
614        + two new field (taux, tauy for stress over ice)
615        + removed one global field (DAIRN) for C-grid case only
616    o pkg/thsise
617      - 2nd set of modifs for thsice adjoint in conjunction with exf
618    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
619    
620    checkpoint58y_post
621    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
622      vertical diffusivity, similar to that in MOM4; turned on using
623      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
624      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
625    o Added capability for 3D specification of background vertical diffusion
626      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
627      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
628      "data" file that contains the 3D vertical diffusivity coefficients.
629    o ice dynamics (pkg/seaice) with thsice thermodynamics:
630      - add code within pkg thsice to advect & diffuse sea-ice fields
631      similar to (and will replace) what has been added in  seaice_advdiff.F,
632      but: - conserving Mass, Heat & Salt.
633           - better when using non-linear advection scheme (not yet fully tested)
634           - can also be used in atmospheric set-up (for now, only the diffusion).
635    
636    checkpoint58x_post
637    o IO option for global-file compact format:
638      - add options when generating topology (utils/exch2/matlab-topology-generator)
639      - add I/O capability (pkg/mdsio).
640      - adapt utils/matlab/rdmds.m to read this format.
641      for now long-line format not yet supported by pkg/mdsio (& exch2).
642    o shelfice: add a few diagnostics
643    
644    checkpoint58w_post
645    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
646      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
647      (and replace horiVertRatio in NH code).
648      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
649                         and tutorial_plume_on_slope (sensitive to truncation)
650    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
651      directly to drive seaice model (C-grid only)
652    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
653     - reintroduce computation of wind from stress,
654     - compute tau (in exf_bulkformulae.F) from windstress averaged to
655       mass points to avoid tau = 0
656     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
657    o rdmnc.m: make it work with "global" files created with gluemnc
658    o rdmnc.m : some improvements in dealing with singleton dimension
659      (tested on all testreport mnc output files).
660    o genmake2: disable pkg/profiles if netcdf test fails.
661    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
662    o move call to cal_readparms up to make calendar parameters/variable available
663      to all packages
664    
665    checkpoint58v_post
666    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
667      useDynP_inEos_Zc tested.
668    o pkg/exf: changes to properly interpolate/mask/scale initial fields
669    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
670      and portions thereof.  See read_cs.txt for description and examples.
671    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
672      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
673      following the great-circle arc between those 2 points.
674    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
675      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
676    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
677     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
678     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
679     - still needs work (not working with some options ; efficiency to improve)
680       and serious testing.
681     - use this scheme for temperature & salinity in 2 advection test exp.:
682       advect_xy & advect_xz, respectively.
683    
684    checkpoint58u_post
685    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
686    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
687    o testreport: add option "-skipdir" to skip some test.
688    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
689      momentum calculation.
690    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
691    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
692      remove checkpoint.F and the_correction_step.F (no longer used);
693      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
694    o add option (linFSConserveTr) to correct for tracer source/sink due to
695      Linear Free surface
696    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
697    o pkg/thsice: fix reading mnc-pickups
698    
699    checkpoint58t_post
700    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
701    o pkg/mdsio:
702     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
703       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
704       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
705     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
706     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
707       either MDS_READ_FIELD or MDS_WRITE_FIELD )
708     - new S/R (to replace MDSWRITEMETA), which allows to write more
709       informations (variable names, time ...) to meta files.
710     - modify rdmds.m to give back the meta file content.
711    o pkg/diagnostics: change vertical interpolation to be safer, and more
712       flexible (define p-levels to interpolate to in data.diagnostics);
713      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
714       diagnostic pointer.
715    o pkg/seaice: more cleaning up of seaice_growth, added many comments
716    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
717    o fix multi-category seaice:
718     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
719       SEAICE_MULTICATEGORY
720     - fix short wave heat flux
721    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
722       and allow to use EVP solver. Change forward lab_sea: test both EVP
723       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
724    o Initial check-in of lab_sea adjoint
725      (very similar to natl_box_adjoint/code_seaice)
726      * used C-grid and EVP solver
727      * used KPP, GM/Redi
728      * uses inAdExact=.TRUE.
729      * gradient checks fail for both ADM and TLM
730        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
731        f.d. gradients actually seem more problematic than ADM, TLM gradients;
732        issue is related to forward mismatch between g77 an ifort
733    o pkg/seaice: overhaul of thermodynamics
734     - growth.F and groatb.F are replaced by new routine seaice_growth.F
735     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
736     - move a few global fields out of SEAICE.h into seaice_growth.F and
737       make them 2D (FICE/QNETO/ ...)
738     - remove FO (it is the same as QNETO)
739     - introduce a few local fields to avoid modifying external fields such
740       as atemp, etc.
741    
742    checkpoint58s_post
743    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
744      changed exf_set_gen.F so that
745        genperiod=0 means input file is one time-constant field and
746        genperiod=-12 means input file contains 12 monthly means
747    o CG2D: use pre-computed solver main-diagonal (stored in common block);
748      this affects truncation error ; generate new output file for exp. which
749      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
750        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
751        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
752        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
753        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
754        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
755    o start implementation of deep-atmosphere and anelastic formulation
756    o verification: remove 2nd copy of input files and use script "prepare_run"
757      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
758    o mom_common/vecinv/fluxform: fix a few initialisation isssues
759    o profiles: fix for multithreaded case
760    
761    o diagnostics: rename few diags:
762      s/'PRESSURE'/'RCENTER '/g
763      s/'TICE    '/'oceFreez'/g
764      s/'TAUX    '/'oceTAUX '/g
765      s/'TAUY    '/'oceTAUY '/g
766      s/'SWFLUX  '/'oceQsw  '/g
767      s/DIFx/DFxE/g
768      s/DIFy/DFyE/g
769      and add few ocean-forcing diagnostics:
770      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
771    o modifications to pkg/seaice/growth.F and budget.F, which change results of
772      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
773      as actual snow thickness.  It now refers everywhere to effective snow
774      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
775    
776    checkpoint58r_post
777    o modifications to pkg/seaice/growth.F, which change results of
778      lab_sea experiment: fixes pertain to melting snow over open water, to
779      masking EVAP under sea ice, and to using the correct AREA variable for
780      computations of EVAP, PRECIP, HSNOW, and GHEFF
781    o add ability to read bathy, salt, and theta using MNC (off by def)
782    o add flooding algorithm and advection of HSNOW for pkg/seaice;
783      both are turned off by default and do no change any results
784    o seaice advection with pkg/thsice: a step toward the use of non-linear
785      advection scheme, but #ifdef or commented out for now (requires more EXCH).
786    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
787      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
788      in natl_box (affects results @ truncation level: update output.txt)
789    o multi-threading and IO:
790      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
791      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
792        (needed to work with SingleCpuIO): tested in all verif. exp.
793    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
794      affects the results (but none of the verification test uses this scheme).
795    o Adding some pkg/diagnostics capability to pkg/seaice
796      (will certainly be subject to changes)
797    o ctrl: adding new control variables:
798      lwflux, lwdown, evap, snowprecip, apressure, runoff
799    
800    checkpoint58q_post
801    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
802      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
803      high_res_cube configuration by 4% on Columbia.
804    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
805      add (in global_with_exf/code) a version of EXF_INTERP_READ without
806      dynamical allocation (seems to work in multi-threaded).
807    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
808      single CPU io) so that TAF does not have to see EESUPPORT.h
809    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
810    
811    checkpoint58p_post
812    o obcs: stop if obcs is used with useCDscheme = .true.
813    o shelfice:
814     - fix a sign error so that no slip at shelfice interface works
815     - remove stop for combination non-hydrostatic code and shelfice. That does
816       not mean, that the results are correct, but at least they are numerically
817       stable
818    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
819    o added adjoint exch routined for all exch*3d* routines
820      and updated flow directives
821    
822    checkpoint58o_post
823    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
824      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
825    o change controling S/R for writing pickup file (new S/R do_write_pickup)
826      and clean-up reading/writing of pickup files.
827    o fix local version of read/write pickup (NH part) in rotating_tank/code
828    o simplify EXCH interface:
829     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
830     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
831    o added the regrid package
832    o shelfice:
833     - add a simple boundary layer scheme to reduce noise
834     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
835    
836    checkpoint58n_post
837    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
838       local variable (not in common block).
839    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
840      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
841      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
842        to work with SingleCpuIO.
843    o add "_d 0" to real constant of pkg/cfc subroutines ;
844       update exp. cfc_exemple & tutorial_cfc_offline output files.
845    o multi-threading and IO:
846      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
847        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
848      - barrier before and after reading.
849      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
850      - avoid using MDS_WRITELOCAL for LAND pkg output.
851      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
852        common-block variables ; Allows multi-threading with master-thread IO.
853    o change default MAX_NO_THREADS from 32 to 4 ;
854      and stop cleanly when MAX_NO_THREADS is too small.
855    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
856    
857    checkpoint58m_post
858    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
859       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
860    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
861       keep global_ocean.90x40x15 (for AD testing) with former secondary test
862       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
863    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
864        add MITgcm_tutorials (= code + all the tutorials)
865    o ecco, option to compute cost for total ssh (mean+anom)
866    o consistent with addition of ptracer and ssh in pkg/profiles
867    o profiles: adding ptracer and ssh
868    o testreport: change multi-test output-file name
869      (from output.txt.{name} to output.{name}.txt)
870    o profiles: now ok for mutli-tiles case
871    o seaice: add 4 parameters for different advection schemes for area,
872      (effective) seaice thickness, enthalphy, and snow height. Their default
873      is the standard parameter SEAICEadvScheme
874    o calc_gw:
875     - add cosFacU in zonal viscous flux (harmonic.visc.).
876     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
877       of tutorial_plume_on_slope.
878    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
879    o calc_gw: true flux-form, account for horizontal grid spacing.
880      update rotating_tank results, but not plume_on_slope (affected at
881      truncation level, 11 digits).
882    
883    checkpoint58l_post
884    o calc_gw:
885     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
886     - remove side-drag for now (need to fix it); update plume_on_slope results.
887     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
888    o commit code to make SST/SSS weights spatially variable
889      (based on either variable in-situ or variable initial T/S weights)
890    o pkg/ecco:
891      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
892        now based on horizontally varying weights wthetaLev, wsaltLev
893      * cost_averagesflags now returns year indices in addition to day, month
894      * sflux balance is performed on annual basis
895        (sflxumm, sfluxmm2, bal_sfluxmm)
896      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
897        including separate counting and multipliers
898    o pkg/rbcs
899      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
900    
901    checkpoint58k_post
902    o testreport:
903     - always build in dir. "build" (if not there, mkdir build instead of building
904       & running in input)
905     - run in dir run (if it exists), in build otherwise.
906     - call prepare_run (if input/prepare_run exists)
907     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
908    o pkg/exf modifications to interpolation and rotation routines for more
909       reasonable treatment of North Pole singularity: for tracers North Pole
910       value is set to northernmost zonal-mean value, for zonal velocity it is
911       set to zero, and for meridional velocity it is set to northernmost value.
912    o pkg/exf/exf_check_range.F
913     - add tile index to diagnostics and move stop statement to the very
914       end of the routine.
915    o pkg/diagnostics: (diagnostics_main_init.F)
916      define title of isomorphic variables according to the current config.
917    o pkg/thsice with pkg/seaice dynamics:
918    - fix domain of computation (interior only, required for exf) and do exchanges
919    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
920    o towards a standard way of dealing with multi-threading in MONITOR
921      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
922    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
923       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
924    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
925    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
926    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
927       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
928    o tracer advection:
929     - clean-up and simplify calc_common_factors.F
930     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
931       advection subroutine (but still not used within DST advection S/R)
932    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
933    
934    checkpoint58j_post
935    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
936      from file (collects calls previously in FORWARD_STEP)
937    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
938    o adjoint store dir. adjusted accordingly
939    o genmake2
940      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
941    
942    checkpoint58i_post
943    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
944      on wind stress (SEAICEstressFactor defaults to 1.)
945    o Total number of Timers is finite (<=40): comment out 2 non-essential one
946      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
947    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
948      on CS-grid: no longer loosing mass.
949    o exf & curvilinear-grid: no longer modify longitude xC & xG.
950    o pkg/ggl90: fix sloppy output and fix a bug
951    o pkg/seaice: added SEAICEuseEVPpickup parameter
952      - Set to false in order to start EVP solver with
953        non-EVP pickup files when using SEAICEuseEVP
954      - fix sign error in diffusion in seaice_calc_rhs
955    
956    checkpoint58h_post
957    * Modifications for bottom topography control
958      o replace hFacC by _hFacC at various places
959      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
960      o add non-self-adjoint cg2d_nsa
961      o update autodiff support routines
962      o re-initialise hfac after ctrl_depth_ini
963      o works for 5x5 box, doesnt work for global_ocean.90x40x15
964    * Adding verification for 5x5 box (4-layer) bottom topography control
965    
966    checkpoint58g_post
967    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
968       used for mean seasonal cycle, mean diurnal cycle); add an example
969       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
970    o pkg/ggl90:
971      - add parameter (minimum surface kinetic energy)
972      - fix bug (avoiding division by zero)
973    o couple pkg/thsice to pkg/seaice:
974      - modify advection in seaice to accomodate new scalar fields to be advected
975      - only muliDimAdection scheme work with seaice/thsice
976      - mapping of thsice-variables to seaice-variables, back and forth
977      - does not break the verification experiments, but does not give the
978        desired results either
979    o pkg/seaice
980      - make (default) second order advection a bit less confusing?
981    
982    checkpoint58f_post
983    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
984      to pkg/seaice):
985      - new routines thsice_map_exf and thsice_get_exf provide the interface
986      - add an additional formal parameter to thsice_solve4temp
987    o pkg/exf:
988      - add new fields wspeed, snowprecip (to be able to couple to thsice)
989      - correct Stefan-Boltzmann constant
990      - new parameter for longwave surface emittance
991      - separate some stuff from exf_bulkformulae into new routines  
992        exf_radiation, exf_wind
993      - add new parameters and constants: longwave emissivity for ocean, ice
994        and snow, evaporation parameters over ice
995      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
996        either wind from stress or stress from wind
997    o pkg/thSIce:
998    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
999    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1000       and THSICE_CALC_THICKN
1001    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1002    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1003      to make debugging easier.
1004    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1005    o pkg/bulk_force:
1006      - clean-up comments and parameters ;
1007      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1008    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1009      generate new output for test-experiment: aim.5l_cs.thSI
1010    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1011      testreport accordingly
1012    
1013    checkpoint58e_post
1014    o SEAICE_CGRID adjoint done
1015    o R_STAR adjoint implemented.
1016      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1017      * need to sort out init. of h0facc, etc.
1018    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1019      to be able to use it in pure forward.
1020    
1021    checkpoint58d_post
1022    o upgrade simple test-experiment to tutorial example:
1023     step.1: duplicate the experiment and (step.2) will remove the old copy.
1024      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1025      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1026      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1027      tutorial_global_oce_biogeo    <- copy of dic_example
1028      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1029      tutorial_plume_on_slope       <- copy of plume_on_slope
1030      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1031      tutorial_global_oce_optim     <- empty for now (David ?)
1032      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1033     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1034    o correct a sign problem in cost_scat.F
1035    o obcs and ptracers: fix boundary conditions for advections schemes
1036      with larger stencil
1037    o thsice adjoint: start
1038    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1039      completeness
1040    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1041      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1042    o ptracers adjoint:
1043      * avoid extensive recomputatations
1044      * fix missing re-init. of gptr (missed by TAF)
1045    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1046      me to turn off the excessive output to STDOUT that this package produces
1047    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1048      and add those terms in Vector-Invariant formulation.
1049    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1050      if the control period (xx_hfluxperiod etc) is 0
1051    o in profiles pkg, clean routines and fix details
1052    o in ecco pkg, reading ssh data:
1053      fix problem in case the model does not start at iter0=0
1054    o fix mnc-pickup/restart for ptracers
1055    o new package prifiles:
1056      code to compute profile-based cost by Gael Forget
1057      (modifs in ecco, ctrl, autodiff)
1058    o Benign bug fix in initialization (spotted by M. Mazloff) of
1059      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1060    
1061    checkpoint58c_post
1062    o adjoint: finish NLFS adjoint and provide reference output in
1063      verification/global_ocean.90x40x15/results_ad_nlfs
1064    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1065      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1066      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1067      with SEAICE_CGRID defined.
1068    o move calendarDumps from "data" to "data.cal" and clean-up the code
1069      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1070    o add useEXF & useCAL flags (for now, set in hard-coded way)
1071    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1072      (were missing in NH mode, and wrong in quasihydrostatic mode).
1073      waiting for Chris updated version of calc_gw to add those CALLs.
1074    o fix bug in quasihydrostatic S/R ;
1075      add a test for this option: global_ocean.90x40x15.qshyd
1076    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1077      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1078    o add on/off flag useOffLine for package OFFLINE
1079    o seaice:
1080      - modify advection so that it works also on the C-grid
1081      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1082        problem in multi-tile runs with C-grid
1083      - add flags for clipping ice velocities and/or masking solver forcing
1084      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1085        C-grid solver
1086      - added a few comments to seaice_diffusion.F
1087      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1088        are now exclusive)
1089      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1090        required re-ordering the code a little:
1091       + make DAIRN global variable (defined in SEAICE)
1092       + move computation of the viscosities eta and zeta into a new separate
1093         routine (because I need to recompute them in seaice_ocean_stress.F)
1094    
1095    checkpoint58b_post
1096    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1097      update output.txt of exp. aim.5l_cs.thSI
1098    o various mnc cleanups and improvements:
1099      + shrink lookup tables by factor of ~4
1100      + better error reporting when running out of lookup space
1101      + able to handle longer path/file names (up to 500 chars)
1102    o adjoint:
1103      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1104      - TBD: "hidden" mom_vecinv recomp. in dynamics
1105    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1106     (allow to differentiate between forcing components using new integer flags:
1107      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1108     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1109    o ecco
1110      - enable trend removal from SSH anomaly obs.
1111    o adjoint
1112      - a fix for PmEpR when #undef EXACT_CONSERV
1113      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1114      - try to fix "hidden" recomp. in forward_step for NLFS
1115        (NLFS seems broken sometimes after I checked it in)
1116    o seaice:
1117     - add c-grid version of the dynamic solver:
1118       + three new routines that are the c-grid substitute lsr, dynsolver
1119         and ostres
1120       + put a few fields that were local to dynsolver into global common
1121         blocks, so that I can move the computation of stresses etc into
1122         seaice_lsr (saves coding but may break the adjoint).
1123     - replace more hardwired parameters by runtime parameters
1124     - add ice masks that mask the rhs of the implicit solvers where there
1125       is no ice (commented out in seaice_dynsolver, because i am not sure
1126       if this works properly), eventually this should replace the clipping
1127       of ice velocities in seaice_dynsolver to +/-40cm/s.
1128    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1129      include it only where its needed
1130    o move balancing of fluxes before the call of external_forcing_surf
1131    o seaice:
1132      - correct units of turning angles (now they are really in degrees)
1133      - move computation of GWATX/Y out of main routine into dynsolver
1134      - initialize GWATX/Y in seaice_init
1135  o Apply mask on Fresh-Water flux (needed for SSH forcing).  o Apply mask on Fresh-Water flux (needed for SSH forcing).
1136    update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)    update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1137  o seaice: add runtime flags for turning angles (default to zero)  o seaice: add runtime flags for turning angles (default to zero)
1138  o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean  o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1139    and trend from exf forcing and ctrl control adjustments    and trend from exf forcing and ctrl control adjustments

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