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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.970 by jmc, Sat Apr 5 21:37:08 2008 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
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).
1136      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)
1138    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1139      and trend from exf forcing and ctrl control adjustments
1140    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1141      (since checkpoint57x_post)
1142    o change the default rotation period to 86164.s = the Earth rotation
1143    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1144      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1145    o seaice advection: add code for choosing between the default (2nd order
1146      central differences) and multiDim advection schemes provided by
1147      pkg/generic_advdiff
1148    o seaice:
1149      - removed all references to SEAICE_GRID.h fields from
1150        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1151        (cubed-sphere configuration will change a little)
1152      - grid computations in seaice_init are obsolete now.
1153      - cleaned up code a little so that is easier to read (hopefully).
1154      - added new (better?) discretizations of default advection and diffusion
1155        (turn on with SEAICEuseFluxForm)
1156      - replace 1 in 3d global fields by kSurface in growth.F
1157      
1158    checkpoint58a_post
1159    o seaice:
1160      - bug fix in advect.F
1161    o shelfice:
1162      - separate shelfice load anomaly from pload (breaks with time
1163        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1164        Its default is 0., but it may be computed more cleverly from (unknown)
1165        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1166        done offline. A good approximation of the pressure load anomaly is
1167        necessary to avoid large initial adjustment processes underneath
1168        deep-reaching shelfice.
1169      - small fix in ISOMIP shelfice_thermodynamics
1170      - add more sophisticated thermodynamics of Hellmer (1989), this is
1171        now the default
1172      - give a few constants more intuitive names
1173    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1174      if bulk formulae are used in long integration (especially EmPmR). Turn
1175      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1176      if balancePrintMean, the imbalance that is substracted is printed to
1177      STDOUT.
1178    o fix bug (typo) in obcs_apply_eta.F
1179    o add a new package shelfice which enables us to model the circulation
1180      underneath shelf-ice with draughts of hundreds of meters.
1181     - works
1182     - to do: + include improved thermodynamics
1183              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1184                instead of new field kTopC
1185              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1186                instead of new field R_shelfIce and new code in ini_depth.F
1187                and ini_mask_etc.F?
1188              + adjust vertical mixing schemes?
1189    o seaice pkg:
1190     - add a cpp-flag to include a simple formula for a salinity dependent
1191       freezing point of sea water at the surface
1192     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1193       meridional stresses are now different (and hopefully correct)
1194    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1195       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1196       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1197    o pkg/diagnostics: add options and parameters for regional-statistics
1198       diagnostics ; define regions by reading a region-mask from a file
1199       (might add other options later)
1200    o pkg/bulk_force:
1201     - add option and parameters to use AIM surface-flux formulae.
1202     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1203       others forcing fields (defined in PARM05, parameter file "data") are loaded
1204       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1205     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1206     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1207     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1208       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1209     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1210    
1211    checkpoint58
1212    o add "--embed-source" option to genmake2 which, when the supporting
1213      tools can be compiled (as determined by genmake2) will turn on the
1214      embed_files package which then embeds the entire MITgcm source code
1215      (*.[fFhc] + Makefile) used for the build within the executable
1216      - requested by CNH but off by default
1217      - adds a paltry <9MB to the mitgcmuv executable in most cases
1218      - only writes the output when useEMBEDSRC in eedata is true
1219    o clean up 3-dim. relaxation codes:
1220      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1221      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1222      * Thanks to Tom Haine for testing!
1223    
1224    checkpoint57z_post
1225    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1226      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1227    o fix the pickup behavior for obcs in combination with ptracers
1228    o fix a bug in ptracers_external_fields_load
1229    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1230      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1231    o transfered surface NH pressure to eta field (if exactConserv).
1232    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1233         and update lab_sea output.txt file.
1234    o completing 3-dim. relaxation code: additional term
1235         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1236      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1237      * At compile time, in "EXF_OPTIONS.h" set
1238          #define  ALLOW_CLIMTEMP_RELAXATION
1239          #define  ALLOW_CLIMSALT_RELAXATION
1240      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1241          tauThetaClimRelax3Dim = 15552000.0,
1242          tauSaltClimRelax3Dim  = 15552000.0,
1243      * 3 cases:
1244          1) Use a constant-in-time 3-dim. field
1245          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1246          3) Real-time relax. to time-evolving prescribed field
1247    o Adding Laplacian-type smoothness constraint on
1248      initial and boundary (forcing) controls (ic, bc)
1249      * enable at compile-time via
1250        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1251      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1252      * Absolute scale somewhat unclear so far
1253      * no area weighting was included since no other cost term does so far
1254    
1255    checkpoint57y_post
1256    First step for a NLFS adjoint
1257    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1258    o new init. routines for calc_r_star, calc_surf_dr
1259    o still need to deal with ini_masks_etc
1260    o testreport seemed happy
1261    checkpoint57y_pre
1262    
1263    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1264    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1265    o add new offset feature to offline pkg (plus minor cleanup)
1266    o cfc fixes for final year of integration
1267    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1268      be in GCHEM_OPTIONS).
1269    
1270    checkpoint57x_post
1271    o fix testreport Pb in multiple test experiment.
1272    o cleanup our namelist syntax in verification:
1273      - make it more F95 standards compliant (some work still needed)
1274      - allows the vast majority of our tests to work with gfortran
1275    o Non-Hydrostatic:
1276     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1277     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1278    o Allow to apply AB on T,S rather than on AB(gT,gS):
1279     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1280     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1281       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1282     - need a "clever" read_pickup to restart from the other AB formulation
1283    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1284    o remove some unused variables (reduces number of compiler warnings)
1285    o adjoint
1286      * Disable useVariableViscosity for adjoint for time being
1287        (there are a number of extensive recomputations)
1288      * Initialize certain variables needed for adjoint
1289    
1290    checkpoint57w_post
1291    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1292                 fix the singleCpuIO RS version of MDSWRITEFIELD
1293       and add a WARNING if using globalFiles=T with multi-processors.
1294    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1295      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1296    o tracer advection scheme:
1297      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1298       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1299       was not very convenient).
1300      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1301       (further tests needed for the implicit DST & Flux-Limiter schemes).
1302    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1303      and sRef for convenience, handy, when you want to initialize
1304      ptracers in a large domain with a constant non-zero value. Also,
1305      untangle ptracers_init.F a little.
1306    
1307    checkpoint57v_post
1308    o change dome exp. to use variable viscosity in side-drag terms.
1309    o remove all the files from the cfc_offline test since they are now
1310      incorporated into tutorial_cfc_offline which has been producing
1311      identical results for a few days of testing
1312    o add new parameter: sideDragFactor to enable half-slip-side BC
1313      and change side-drag S/R to use viscosity from mom_calc_visc
1314      (can switch back by setting sideDragFactor=0.); affects results at
1315      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1316       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1317    o vorticity & strain are now computed without masking, to account for
1318      no-slip-side BC in variable viscosity calculation ; mask is applied
1319      anyway later on, before computing advection/coriolis terms.
1320    o modify exp4 to test new obcs support for reading from external files
1321      and for passive tracers
1322    o fix behavior of ptracers_monitor when monitor output is written to a
1323      netcdf-file; still not independent of monitor.F (writes in the same
1324      file).
1325    o change default value of tRef (put a uniform, meaningful value for ocean
1326      & atmos) and initialize sRef (was missing, as Martin mentioned).
1327    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1328      to be proportional to enstrophy dissipation length.  Thus,
1329       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1330      This is now consistent with Smagorinsky and with the manual.
1331    
1332    checkpoint57u_post
1333    o OBCS and PTRACERS: add open boundary support for passive tracers
1334      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1335        OB-values from file; this is not different from the way theta and salinity
1336        are treated
1337      - however, Orlanski-radiation conditions are not supported, and the model
1338        will stop if you use pTracers and Orlanski at the same time.
1339      - beefed up the rountine obcs_external_fields_load: now only those open
1340        boundary values are overwritten with values from files for which there
1341        are really files, otherwise the OB-fields remain untouched. This makes
1342        it possible to use different OBs at different ends of the domain (as
1343        with EXF)
1344    o reduce number of exch calls in shap_filt (s2).
1345    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1346      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1347    
1348    checkpoint57t_post
1349    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1350    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1351      same truncation, independent of the face number: affects affects several
1352      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1353    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1354      note that biharmonic viscosity + no-slip was not tested in any experiment.
1355    o fix bug in non-linear free-surf side-drag ; generate new output for
1356      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1357    o make mnc honor the writeBinaryPrec flag for most kinds of output
1358    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1359    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1360      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1361    o add brackets in multi-terms sum to get same truncation, independent of
1362      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1363      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1364    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1365      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1366      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1367      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1368      Suggested values of viscosity parameters found in mom_calc_visc.
1369      Many new viscosity diagnostics available.
1370    
1371    checkpoint57s_post
1372    o Add clearing-house for viscosity calculations, mom_calc_visc and
1373      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1374      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1375      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1376      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1377      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1378      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1379      ViscAhStrain and viscAhTension are now retired.
1380    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1381    o In response to JMC's bug report, genmake2 now ignores any soft-links
1382      that it finds in the *current* directory when searching for files.
1383      Soft-links found in any other source directories will still work as
1384      they did before.
1385    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1386      a C routine to unlimit the stack size
1387    o mnc-ify pkg/aim snapshot vars
1388    o mnc-ify pkg/land as requested by Daniel
1389    o various changes to mnc including:
1390      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1391      - output can now be grouped so that all files within a group
1392          change the ITER portion of their names in lock-step together
1393      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1394          and works with both EXCH1 and EXCH2 (but needs more testing)
1395      - writing works for all verification test cases w/ g77 on Linux
1396    
1397    checkpoint57r_post
1398    o make MNC variable initialization happen earlier
1399    o add diagnostics for (almost) each term of the momentum Eq.
1400    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1401    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1402    o remove MINIMAL_TAVE_OUTPUT option ;
1403      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1404    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1405      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1406    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1407    o add time-dependent SST, SSS control
1408    o cost terms in ecco/ modularized (new cost_generic.F)
1409    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1410    o new infrastructure for seaice model vs. obs misfits in seaice/
1411      * driver from the_main_loop.F is seaice_cost_driver.F
1412      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1413      * gradient check in Exp. 6a of natl_box_adjoint/
1414    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1415      (see README file)
1416    
1417    checkpoint57q_post
1418    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1419    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1420      - bug was reported by Jean-Michel and Ian Fenty
1421    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1422      update exp. cpl_aim+ocn output.
1423    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1424      Needed for high-res. runs with large global files
1425      to be able to limit tapelev size
1426    o Changed some tests for adjoint:
1427      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1428      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1429      * global_ocean.90x40x15/ back to default 3-level checkpointing
1430    o Modifications to enable scripted COMMON to MODULE conversion
1431      * verification/OpenAD/code/ has necessary scripts and description;
1432      * converts, compiles and runs successfully;
1433    
1434    checkpoint57p_post
1435    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1436    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1437      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1438    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1439    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1440      (was already the case for dissipation with mom_vecinv,
1441       and also the case for grad.PhiHyd when staggered-timeStep)
1442      This will allow to put dissipation out-off the AB time-stepping.
1443     Unfortunately, affects truncation error. Update output of exp. that "fails"
1444      (cg2d matching number) and leave the others for later: front_relax(10),
1445      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1446      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1447    
1448    checkpoint57o_post
1449    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1450      (2) its ready to be documented during the 20050801 DocFest
1451    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1452      for ideal_2D_oce and lab_sea on linux_ia32_g77
1453    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1454      in global1x1_tot/code_seaice_adj to access indices 32, 33
1455      (worth another tag)
1456    
1457    checkpoint57n_post
1458    o adding precip control xx_precip 32
1459    o adding swflux control xx_swflux 33
1460    o Replacing 10 forcing penalty cost routines by 1 generic.
1461    o Implementing partitioning in time-mean and variable adjustment
1462      for atmos. state.
1463    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1464    o in natl_box_adjoint:
1465      * updated exp 1 to 10
1466        (but does not have time-mean vs. variable split results yet)
1467    o updated global1x1/*_seaice_adj/
1468      to incorporate latest changes
1469    o enable useSingleCpuIO for mdsio vector routines
1470      (applies in particular to tapelev I/O)
1471    o removed inefficient K-loop in all active_file*control*.F
1472    
1473    checkpoint57m_post
1474    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1475      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1476    o pkg/exch2: filling of face-corner halo regions is optional
1477      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1478    
1479    checkpoint57l_post
1480     tag before updating tutorials (pre-release-2)
1481    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1482       for output and interpolation of input fields onto model grid)
1483    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1484       Affects results of exp. rotating_tank ; update output.txt.
1485    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1486          and taking the square quantity and/or using a fraction-weight field.
1487    o fix aim_diagnostics_init.F mate numbers.
1488    o add mnc output capability to diagnostics/diagstat and update
1489      our cvsignore files for the ACSII output generated
1490    
1491    checkpoint57k_post
1492    o lab_sea now uses diagnostics package and provides a suite of
1493      new EXF diagnostics output.
1494    
1495    checkpoint57j_post
1496    o exf
1497      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1498        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1499        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1500      * extended diagnostics output
1501        - now includes all EXF variables
1502        - hs, hl moved to common block
1503        - separate S/R for diagnostics, called after ctrl vector is added
1504        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1505        - EXFqnet contains true Qnet (i.e. includes qsw)
1506      * updated verif. lab_sea, global_with_exf
1507      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1508        to ensure that diagnostics sees a true EXFqnet
1509    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1510    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1511      several times with different frequencies.
1512    o mnc-ify the thsice package as requested by Daniel Enderton
1513      - the monitor--MNC output needs work
1514      - many attributes need to be added (most are currently blank)
1515    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1516      - many attributes need to be added (most are currently blank)
1517    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1518    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1519    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1520      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1521         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1522    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1523     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1524    
1525    checkpoint57i_post
1526    o Diagnostics package was changed: diagnostic allocation is now deactivated
1527      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1528    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1529      add 1rst Order upwind vertical Shear.
1530    o add a quick fix for A/B checkpointing in OFFLINE mode
1531    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1532      end-run around the C/Fortran linking horror in eesup/src/timers.F
1533    o added pkg/runclock: allows user to terminate run based on wall clock
1534    o added non-hydrostatic scaling parameter: nh_am2
1535    o pkg/my82: futile attempt to make results compiler-independent by adding
1536      some "_d 0", etc. no effect.
1537    o for mnc output, fill the 'T' coordinate var with myTime and create a
1538      separate 'iter' variable for iteration count
1539    o pkg/diagnostics:
1540      add new capability: output of Global/Regional & per-level statistics ;
1541      tested against monitor output (including land & thSIce) on various exp.
1542    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1543    
1544    checkpoint57h_done
1545      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1546      data.diagnostics, data.gchem, data.ptracers) is done.
1547    
1548    o pkg/diagnostics: prepare for Global/Regional statistics.
1549      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1550    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1551      and rename it: DIFFERENT_MULTIPLE
1552    
1553    checkpoint57h_post
1554    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1555    o pkg/diagnostics: change output frequency, now in seconds (instead
1556      of Nb of iterations). This requires to change data.diagnostics.
1557    checkpoint57h_pre
1558    
1559    o in mnc, let the user create the output dir if both mnc_outdir_date
1560      and mnc_outdir_num are false
1561    o add fflags() to pkg/diagnostics which allows one to specify, on a
1562      per-file basis, the file precision [default behavior is unchanged]
1563    o added diagnostics to pkg/kpp, including computation of mixed layer
1564      depth based on a temperature/density criterion
1565    o updated verification/natl_box to test the new pkg/kpp diagnostics
1566    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1567    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1568    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1569      not mnc -- this mistake was found by JMC and is now corrected
1570    
1571    checkpoint57g_post
1572    o add Adams-Bashforth 3rd Order time stepping:
1573      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1574      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1575    checkpoint57g_pre
1576    
1577    o make lambda[Theta,Salt]ClimRelax spatially varying
1578      (default remains spatially uniform constant based on tau)
1579    o added new control variables
1580      * init. uVel, vVel, etanN
1581      * lambda[Theta,Salt]ClimRelax
1582    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1583      (suggested by G. Forget)
1584    
1585    checkpoint57f_post
1586    o add parameter "baseTime" = model base time = time at iteration zero
1587      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1588      account for baseTime shift
1589    o move Coriolis arrays from PARAMS.h to GRID.h
1590    checkpoint57f_pre
1591    
1592    o mnc-ifying the seaice package
1593    o introduced an alternative length scale calculation for use in the limiting
1594      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1595    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1596    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1597      as well as grad(vort3).  Made it compatible with both approximate form
1598      for the cubed sphere and full form of these gradients.  Added flag
1599      useFullLeith to select between approximate and full form.  
1600    o add "d0" in getcon.F to reduce differences between compilers/platforms
1601      update output.txt of exp. fizhi-gridalt-hs
1602    o change port_rand funtion to allow to set the seed.
1603    o fix obscure MNC bug involving conversion between reals and integers
1604      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1605        new version is now more standards-compliant
1606    o adjoint-related modifications
1607      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1608      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1609      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1610    
1611    checkpoint57e_post
1612    o Adding eddy stress controls a la Ferreira et al.
1613    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1614    
1615    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1616      update output.txt of exp. fizhi-gridalt-hs
1617    o add more "Z" dimensions and associated coordinate vars to MNC
1618    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1619    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1620      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1621      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1622      months and years.  Requires pkg/cal.
1623    o diagnostics: add pickup functionality
1624      - off by default for backwards compatibility
1625      - current version only uses MDSIO -- MNC will be added
1626    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1627    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1628    
1629    checkpoint57d_post
1630    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1631    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1632      output from the diagnostics package
1633    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1634    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1635      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1636    o add coordinate variables to the MNC output from the diagnostics package
1637    o change MNC-flags default value: true when useMNC=TRUE
1638    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1639      the ability (off by default) to read the grid information using MNC
1640    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1641    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1642    o do snap-shot diagnostics at the middle of the time-interval (instead of
1643      at the end).
1644    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1645      new test for AIM with thSIce + slab-ocean
1646    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1647    o move state variable diagnostics to the beginning of the time step ;
1648      (note: still needs some work specially for snap-shot diagnostics)
1649      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1650    
1651    checkpoint57c_post
1652    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1653    o generate new output.txt files on faulks with g77 & the new -ieee option
1654    checkpoint57c_pre
1655    
1656    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1657      update output.txt of exp. global_ocean.90x40x15
1658    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1659      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1660    o add saltFlux(+File) forcing capability with periodicExternalForcing
1661    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1662    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1663    o improvements for the MNC output from DIAGNOSTICS:
1664      - correct handling of the unlimitied dimension
1665      - all dims now have associated coordinate variables
1666      - variables located at U, V, and Corner ("Z") points are now written
1667        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1668        *all* data points are output
1669    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1670    o added pkg/seaice/seaice_monitor.F
1671    o mdsio_readfield.F can now read files visible only to master MPI process.
1672    o pkg/seaice: some test code for ice-modified ocean stress
1673    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1674      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1675      spurious negative numbers for precipitation and humidity.  Will cause
1676      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1677    o pkg/ctrl/
1678      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1679        May be enabled via doPackDiag
1680      *  introduce z-scaling of
1681         + gradient (doZscalePack) and
1682         + control (doZscaleUnpack)
1683    o pkg/mdsio/
1684      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1685      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1686    
1687    checkpoint57b_post
1688    o simplify options in diagnostics_fill arguments (remove weird combinations)
1689    o fix MNC coordinate variables so that they now contain per-face index
1690      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1691      general, EXCH2 grids are only aligned to a "local" coordinate system
1692    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1693    o Implement instantaneous output within pkg diagnostics:
1694      setting a negative frequency in data.diagnostics produces
1695     "snap-shot" output (as opposed to time-average if freq > 0)
1696    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1697      NOTE: change ptracer diagnostics name: use 2 characters to work with
1698            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1699    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1700      becomes the coordinate variable for the 'T' dimension
1701    o add CF-style coordinate variables to MNC
1702      - just a first cut:  numbers are meaningless on the cubesphere and
1703        missing along the T axis but otherwise it works!
1704    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1705    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1706    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1707      this is based directly on what the model compute, so that the content of
1708      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1709    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1710    o clean up build options files for SunOS, in particular
1711      - remove -traditional from xmakedepend
1712      - change -xarch=v9 to -xarch=native for f77
1713      - restore use of make (not gmake)
1714      - add CC=gcc if using g77
1715    o changes per discussion of AM, JMC, & EH3 today:
1716      - move redundant "grid" variables out of "state" -- in preparation of
1717        creating proper CF-style coordinate variables and in recognition
1718        that any/all grid variables can be easily copied (eg. w/NCO) from
1719        the grid files into any of the other NetCDF files
1720      - *always* output grid variables with MDSIO (this will eventually be
1721        changed)
1722      - output MNC grid file if useMNC is true
1723    o every instance of _END_MASTER() has been found and replaced with
1724      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1725      preprocessors
1726    o re-arrange diagnostics pkg initialisation:
1727     - allow each package to extend the available diagnostics list
1728     - add some checking and fix small problems (multi-threaded, ...)
1729     - new S/R diagnostics_fill (replace fill_diagnostics):
1730       look through the short list of active diag. (instead of the long list)
1731       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1732    
1733    checkpoint57a_post
1734    o this set of changes restores TAMC compatibility
1735      tested for global_ocean.90x40x15 adjoint on trough
1736      (what a pain)
1737    
1738    checkpoint57a_pre
1739    o some modifs in tools/build_options for sunos
1740    o call ctrl_pack for ctrl at end for optimcycle=0
1741    
1742    checkpoint57
1743    o add horizontal bi-harmonic viscosity for vertical velocity
1744      - new parameter viscA4W (defaults to viscA4)
1745      - affects only non-hydrostatic code
1746      - to be done: no-slip lateral boundary conditions
1747    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1748    o implement Implicit Vertical advection for pTracers
1749    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1750      (implemented also for implicit vertical diffusion & advection)
1751    o OBCS: extend application of tracer open boundary conditions
1752      to a strip beyond the boundary of width Olx/Oly
1753    o add call monitor to TAF set of required calls (flow directives)
1754      and include in natl_box_adjoint
1755    o untangle a few ifdefs related to cost, ctrl, autodiff
1756      untangel a few ALLOW_ECCO_OPTIMIZATION
1757    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1758      (theta2, salt2 in ecco_cost_weights)
1759    
1760    checkpoint56c_post
1761    o OBCS as control variables
1762      - update ctrl_ad_diff.list, obcs_ad_diff.list
1763      - remove balance of obcs controls from default
1764      - fix index bug nobcs in ctrl_init
1765      - fix dummy fields filen in ctrl_pack
1766      - add dummy weights for obcs
1767    o lsopt: comment out fort.94 output
1768    o optim:
1769      - remove unnecessary header files
1770      - adjusted namelists
1771      - add xerbla.F to Makefile
1772    o exf:
1773      - multiple modifications of exf_check_range
1774      - unit change in exf_init_runoff from [m/year] to [m/s]
1775    o mdsio:
1776      - i/o-vector change debugLevel from debLevA to debLevB
1777    
1778    checkpoint56b_post
1779    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1780      is called from DO_THE_MODEL_IO
1781      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1782      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1783      - clean up PTRACERS_WRITE_TIMEAVE a little
1784    o add another verification experiment that tests both the cfc-pkg and
1785      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1786      reactive tendencies treated inline with regular timestepping
1787    o testreport previously did a lousy job of comparing small numbers, so
1788      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1789      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1790      testreport.
1791    o ptracers_monitor: bug fix for MPI
1792    
1793    checkpoint56a_post
1794    o GCHEM: finish reorganizating the package
1795      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1796        (introduces another 3D-array for each passive tracer, but only if
1797        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1798        gchemTendency is not needed because the timestep is done separately)
1799      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1800      - GCHEM is now---more or less cleanly---separate from PTRACERS
1801      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1802        so clear to me how that should be done in a general way.
1803    o CFC: improve formatting of output in CFC_ATMOS
1804    o PTRACERS:
1805      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1806        that ALL experiments with ptracers enable can be checked. This makes
1807        GCHEM_MONITOR obsolete.
1808      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1809        monitorFreq
1810      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1811    o add PTRACERS (PTR0[1-5]) to testreport output
1812    o exf_check_range:
1813      * default changed to .TRUE.
1814      * will check values for niter0 if debLevA, every timestep if debLevB
1815      * STOP in exf_check_range if 'out of range'
1816      * range chosen generous to allow for potential extema
1817      TBD: a version with stricter range
1818           permitted range would be runtime parameters
1819  o GMredi:  o GMredi:
1820    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1821    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 1824  o GCHEM:
1824    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
1825      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1826    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1827      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1828        this flag is now only visible within GCHEM-pkg routines.
1829      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1830        be replaced by a 3D array that is computed before thermodynamics; for
1831        this, the tracer ID iTracer had to be included into the parameter list
1832        of ptracers_forcing
1833      - set up forward_step to call gchem_forcing, that will replace
1834        gchem_forcing_int in ptracers_forcing
1835      - cleaning up
1836  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
1837    
1838  checkpoint56  checkpoint56

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