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revision 1.392 by mlosch, Tue Nov 23 20:22:12 2004 UTC revision 1.969 by jmc, Tue Apr 1 02:06:54 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 pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
8       scheme to use for vorticty-term ;
9     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
10       (with default selectVortScheme, return to original discretisation)
11     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
12    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
13    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
14      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
15      also fix diagnostics VISCAHW & VISCA4W.
16    
17    checkpoint59o
18    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
19    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
20      move a few statemens out the main loop into separate loops
21    o pkg/shelfice:
22      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
23        (kg/m^2/s), does not break tests, because in verification/isomip,
24        rhoConstFresh=rhoConst (by accident)
25      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
26      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
27        new file model/src/seawater.F, so that they are available for all pkgs.
28      - convert potential temperature into in-situ temperature. This changes the
29        isomip tests => update tests
30    o add a flag writePickupAtEnd (default=true) to be able to suppress
31      writing a pickup at the last timestep
32    o tools/mpack-1.6 :
33      - disable automake (not working) and autoconf (not needed).
34      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
35        also cleaner with much less compilation warnings.
36    o pkg/profiles:
37      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
38      (for "less than 32 characters name" compiler requirement)
39    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
40      conditions that have a different sampling frequency than S/T/U/V obcs
41    o pkg/diagnostics (stats-diags):
42      - fix global Min/Max in case 1 processor get only empty tiles
43    o genmake2: replace (4 times)
44         make genmake_tc_1.o >> genmake_warnings 2>&1
45      with
46         COMM="$CC $CFLAGS -c genmake_tc_1.c"
47         echo $COMM >> genmake_warnings
48         $COMM >> genmake_warnings 2>&1
49      to make genmake2 always see the value of CC as specified in the optfile.
50    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
51      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
52      - modify verification advect_cs test to test SOM-advection on CS-grid.
53    o pkg/ctrl:
54      - Rewrite of ctrl_map_ini_ecco.F,
55        introducing a generic routine (ctrl_map_ini_gen.F).
56      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
57    
58    checkpoint59n
59    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
60      number in dedicate array "hdiag":
61      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
62        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
63      - many small changes (integer format) for large number of diagnostics
64      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
65        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
66    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
67      usingSphericalGrid, this allows to define the rotated grid coordinates
68      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
69      geographical coordinates according to the inverse of the rotation defined
70      by the Euler angles, so that Coriolis parameter and online-interpolation by
71      exf works with the geographical coordinates on XC/YC/XG/YG.
72      Naturally, this feature does not work with all packages, so some
73      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
74      profiles), because there the coordinates are assumed to be regular
75      spherical grid coordinates.
76    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
77      - introduce isopycnal diffusion coefficient control.
78    o tools/adjoint_options:
79      - additional control vector components.
80    o pkg/mnc: have mnc create marginally meaning full coordinate variables
81      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
82    o pkg/mypackage:
83      - add example of read/write pickup for state-var ;
84      - add entry points to the main code for state-vars diags & write-pickup.
85    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
86      transitions for useExfYearlyFields
87      - add new subroutine that determines the file to read from for
88        use*YearlyFields = .TRUE. and .FALSE.
89      - add a verification experiment to global_with_exf that tests
90        useExfYearlyFields with USE_EXF_INTERPOLATION defined
91    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
92      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
93      subroutines (which could be generated from a template, because they are
94      almost identical), for now they are included in obcs_prescribe_read.F for
95      simplicity
96    o pkg/exf:
97      - add a little more diagnostic to exf_interp_read (in analogy to
98        mds_read_field, can be turned off with debugLevel < debugLevA=1)
99      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
100        ugly but fast by unrolling short inner loops, inserting a unroll=8
101        directive in routine lagran, and splitting a loop and making do while the
102        outermost loop (the latter requires the intoduction of index arrays)
103    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
104    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
105      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
106    o verification/seaice_obcs: updated for restart test and latest options
107    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
108      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
109      for now this is only available for the C-grid code and also within
110      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
111    
112    checkpoint59m
113    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
114      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
115    o gad_som : fix flux output (& diagnostics) to have same units as other  
116      advection scheme fluxes (was previously multiplied by deltaT).  
117    o added verification/seaice_obcs both to test seaice open boundaries
118      and to provide an example matlab scrpt for generating them
119    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
120    o pkg/salt_plume: clean up salt_plume_frac.F to
121      remove redundancy in PlumeMethod 1 and 4
122    o pkg/kpp: added saltplume diagnostics
123    o pkg/obcs and pkg/seaice:
124      - do not set uice and vice to zero when OB*icefile are unspecified
125      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
126      - moved seaice tracer obcs after call to seaice_growth
127    o pkg/salt_plume: added various options for salt plume depth
128      criterion and for vertical distribution of the salt
129    
130    checkpoint59l
131    o pkg/ptracers: new version of ptracers pickup:
132      read meta file and write only fields which are needed to restart.
133      ( same logic as main pickup file ; also using pickupStrictlyMatch )
134    o pkg/seaice:
135      - add timescale for melting due to warm mixed layer as a means of
136        setting SEAICE_availHeatFrac more conveniently
137      - add a CPP-flag/runtime parameter check for flooding algorithm
138      - reformulated availHeat in seaice_growth.F to be independent of AREA
139    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
140      unit changes
141    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
142    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
143      SX vector computer.
144    o pkg/seaice:
145      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
146        seaice forcing fields can now be read only through pkg/exf
147      - removed some unused halos
148    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
149    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
150      or U/VICE from U/VWIND before computing U/VSTRESS
151    
152    checkpoint59k
153    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
154      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
155    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
156      all experiments pass when compile with un-initialised var. checking option.
157    o added pkg/salt_plume
158    o script to test restart (for now, in MITgcm_contrib/jmc_script)
159    o pkg/seaice: new read/write pickup version.
160      read meta file and write only fields which are needed to restart.
161      ( same logic as main pickup file ; also using pickupStrictlyMatch )
162    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
163    o lab_sea.hb87: modify the domain & update output.hb87.txt :
164      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
165      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
166      process. Fixed here by closing the domain at the Northern boundary.
167    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
168    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
169      a set of consecutive levels in/from a 3-D array.
170    o pkg/ptracers:
171      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
172      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
173    
174    checkpoint59j
175    o in pkgs: dic, obcs, offline, rbcs:
176      standard way to compute coeff. for time interpolation between 2 time reccords
177      which retains full precision (& make results less dependent on compiler).
178      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
179    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
180      packages instead of reading ice cover and wind speed separately
181    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
182     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
183      to allow to compile customized code before the update)
184    o cleaning-up:
185      - fix CPP instruction syntax in pkg/obcs
186      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
187        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
188      - fix some threads issue in IO parts.
189    o pkg/dic:
190      - add tons of "_d 0" (--> much better testreports !)
191       and then update outputs of tutorial_global_oce_biogeo
192    o pkg/mom_fluxform:
193      add a special version of momentum advection intended to conserve momentum
194      next to a bathymetry step or a coastline edge. (default = off = #undef)
195    o new read/write pickup version:
196      - for now, only implemented for main (mdsio) pickup file.
197      - write out only what is needed to restart; merge pickup_nh , pickup_ph
198        and main pickup together.
199      - read meta file; read only what is needed to restart; stop if a field
200        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
201        if it make sense (even if the restart is not perfect).
202      - if no meta file, assume that pickup to read corresponds exactly to
203        a pickup that would currently be written.
204      - read pickup written in the old format (until checkpoint59i) if it
205        recognizes an old meta file (no field-list).
206      - add a meta file in exp. which starts from a pickup: 2 cases:
207        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
208         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
209        b) a meta file describing the content of the associated pickup file
210         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
211    o pkg/mdsio & pkg/rw:
212      - new routine to read a meta file ; new set of routine to read
213        Multiple-fields file (with meta file).
214    o added open boundary conditions capability for seaice
215        HSNOW, HSALT, UICE, and VICE
216    
217    checkpoint59i
218    o adjoint:
219      * fix multiDimAdvection adjoint
220        (partial recomputation problem by TAF for fVerT(:,:,kDown)
221        and comlev1 size definition (maxpass vs. max. number of tracers)
222      * verification/global_ocean.90x45x15 adjoint now tests
223        NLFS and multiDimAdvection using DST3 (=30)
224      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
225    o pkg/kpp: add "_d 0" to real constant (if missing);
226      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
227      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
228    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
229      for internal parameters related to restart process (formerly from PARAMS.h)
230      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
231    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
232      as argument. (only atm2d & obcs write_pickup have not yet been updated)
233    o pkg/monitor:
234      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
235      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
236      - account for deep Atmosphere factor and density factor (anelastic)
237    o added open boundary conditions capability for seaice HEFF and AREA
238    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
239      thermodynamics
240      - requires a little reorganization, which affects the testreport results
241        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
242        so that now the conservative form is tested
243      - add a few comments
244    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
245    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
246    o add new diagnostics to seaice: advective, diffusive fluxes (only for
247      multidim-advection, for scheme 2 they are not filled) and transports,
248      thermodynamic growth rates
249    o change units of EmPmR (inside the code, + within coupling interface)
250      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
251      Affects results @ truncation level (cg2d match) and update output of
252       experiments: lab_sea(6), global_ocean.90x40x15(10),
253      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
254      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
255      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
256      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
257    
258    checkpoint59h
259    o pkg/exf:
260      - improve vectorization by moving if-statement out of loops in
261        exf_mapfields, exf_radiation
262      - exf_bulkformulae.F: introduce 2D fields and vectorize code
263    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
264    o testreport:
265      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
266        monitor & update offline_exf_seaice exp. output.
267      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
268    o pkg/seaice:
269      - bug fix in the evp solver: boundary conditions were affected be
270        masking of zMax/zMin (changes results)
271      - minor bug fix in boundary conditions in seaice_calc_strainrates
272        (changes results for no_slip)
273      - seaice_lsr.F: make interpolation of eta dependent on boundaries
274      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
275      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
276        stress formulation and no-slip boundary conditions
277    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
278      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
279    o pkg/seaice: a first HSALT time stepping equation has been checked in
280    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
281      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
282      without requiring DO-IF statements
283    o pkg/thsice:
284      use continuous power-law function for partition of energy between lateral
285      melting/freezing and thinning/thickening ; old code using step function
286      still available with #undef THSICE_FRACEN_POWERLAW
287      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
288    o testreport: change AD testing : check against results/output_adm.txt
289      using same scripts as for forward test.
290    
291    checkpoint59g
292    o adjoint testing: in preparation for changing testreport:
293      - output format: cost and grad written on separated lines
294      - ad output results in directory "results" (instead of "results_ad")
295    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
296    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
297    o pkg/ecco: allow user defined cost function contributions
298    o testreport:
299      Allow to choose (per experiment) the list of tested output variables
300       and the main variable (used to issue a pass/FAIL ) ;
301      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
302      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
303      Also modify printing of summary:
304       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
305       b) echo the list of tested variables in the individual summary.txt of
306          each experiment.
307    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
308      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
309      (but still depend on the tile decompostion of the domain).
310    o pkg/seaice: change a discretization detail to make the B-grid code
311      "more symmetric". This change is likely to remove all "ridges/leads" that
312      where quasi-aligned with the grid in B-grid solutions. It may also be
313      the solution to the stress coupling issues with the B-grid.
314    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
315      remove .cvsignore from input dir. (since testreport no longer run here).
316    o pkg/thsice:
317     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
318     - fix reshaping of sea-ice just after advection:
319       melt all the ice only if ice-volume is too small.
320     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
321       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
322     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
323    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
324      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
325    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
326      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
327      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
328      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
329      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
330      -> update output.txt
331    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
332     this affects truncation error: -> update output.txt of exp:
333      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
334      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
335    
336    checkpoint59f
337    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
338    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
339      a bounded range (in forward mode)
340    o pkg/ecco, ctrl, autodiff and mom_common:
341     internal parameter controls, completements of implementations
342    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
343    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
344      (not seem any difference in testing results).
345    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
346       at face corners.
347    o pkg/generic_advdiff:
348     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
349      loop range indices for computing vertical advection tendency
350      and do the calculation in the interior only (no overlap) ;
351      for now, only implemented for SOM advection (to save CPU time).
352     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
353    o exch2 adjoint
354      First set of changes:
355      - add exch2 hand-written adjoint templates
356      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
357        This will require cleanup in pkg/autodiff/*.F
358        (changed routines currently kept separate in verif. code/)
359      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
360        that used to hide exch2 or cubed-sphere specific code
361        (commented via 'cph-exch2')
362    o pkg/seaice
363      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
364    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
365       output of global_ocean.cs32x15.thsice .
366    
367    checkpoint59e
368    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
369      for B-grid vector (not yet tested) and C-grid vector (<- only used
370      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
371    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
372      (#ifdef ALLOW_SALT_PLUME)
373    o gather_2d/scatter_2d: removed halo regions
374    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
375      scheme and the corresponding test case (under front_relax dir). For now,
376      only available with Skew-flux form and not yet tested in realistic set-up.
377      adjoint: store directives updated, but gradient checks deteriorated,
378      so maybe GM/Redi adjoint is now broken.
379    o seaice adjoint
380      * add AREA, HEFF, HSNOW as control variable
381        (should not change lab_sea results)
382      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
383    o pkg/seaice:
384      * added computation of saltFlux in seaice_growth;
385        For time being, sea ice salinity is assumed constant
386        contribution of snow flooding to freshening of sea ice is neglected.
387        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
388        defaults to 0.0 in order to maintain backward compatibility.
389        Typical values for SEAICE_salinity are 4 to 10 g/kg.
390      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
391      * added SEAICE_availHeatFrac, which specifies fraction of surface level
392        heat content used to melt or grow ice
393      * commented out cap of HICE: it helps keep ice thinner
394      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
395      * applied OBCS T/S mask to HEFFM sea ice mask
396    
397    checkpoint59d
398    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
399     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
400     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
401    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
402     and change default value of parameter "GM_Small_Number";
403     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
404       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
405       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
406    o pkg/ecco: cost function when applying pkg/smooth to controls
407    o pkg/ctrl: add forcingPrecond run time parameter
408    o pkg/seaice:
409     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
410     - fix bug in metric terms of u-equation in LSR solver (implicit part),
411       changes verification/lab_sea
412     - rearrange implicit part of u-equation in LSR solver to make it easier to
413       read, understand, and debug. This causes changes at the truncation level.
414     - fix (serious) bug in the boundary conditions (sign error in the implicit
415       part) of the LSR solver. Changes all LSR results.
416     - fixed problem with HSNOW initialization to avoid thick snow when AREA
417       is initilized with small values - does not change lab_sea results.
418     - added HsnowFile initialization capability
419    o pkg/smooth: addition to model/src and pkg/ctrl so allow
420     initialization of pkg/smooth and application to control vector
421    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
422    o dependencies: pkg/profiles requires pkg/cal
423    o pkg/profiles:
424     - added option ALLOW_PROFILES_GENERICGRID
425         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
426         that interpolation information (grid points and coefficients) is provided
427         within the netcdf input files.
428         -> sample matlab scripts can be found in MITgcm_contrib/gael
429         that allow you to prepare netcdf input files.
430     - also modified: cleaner include statements, cleaner error print statements,
431       cleaner stops when error, and more tests of the netcdf input files consistency.
432    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
433    o pkg/seaice:
434     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
435       requires a new routine: seaice_diagnostics_fill.F
436     - make sure that seaice does not move if not forced (pressure replacement
437       method, Hibler and Ip, 1995), changes results
438     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
439     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
440       It is turned off by default (=-1.), because it changes the results.
441     - make it possible to read AREA from a file, too.
442    
443    checkpoint59c
444    o add S/R and diagnostics for oceanic mixed-layer depth
445    o move GMRedi call after all vertical mixing schemes (including KPP)
446    o pkg/thsice:
447     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
448      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
449    o pkg/obcs:
450     - bug fix for balance code
451    o pkg/seaice:
452      - allow values of SEAICE_elasticParm > 1
453      - add new parameter SEAICE_evpTauRelax as an alternative
454        to SEAICE_elasticParm
455      - make lsr boundary conditions free slip (by default), changes result
456      - add code for no slip boundary conditions for lsr
457      - set minimum of zeta to zero (and not 4e8) (changes results)
458      - add a cap on AREA after advecting AREA if seaice_growth is not called
459    o change calculation of Visbeck K:
460      - no longer depend on tapering scheme; instead, compute slope (limited
461        by GM_maxSlope). this is equivalent to what was comuted before with
462        clipping or linear tappering.
463      - fix vertical averaging (wrong by 1/2 level)
464      - leave the old version (but will not be maintained) within
465        #ifdef OLD_VISBECK_CALC / #endif
466      - update output of exp. ideal_2D_oce
467    o change error catch in calc_r_star to improve vectorization
468    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
469      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
470    o adjoint:
471      Re-organized adjoint checkpointing according to Matt Mazloff
472      (but with modifs/completions/cleanups)
473      Storing is now bundled into large arrays to optimized I/O
474      (and second step in cleanup of the_main_loop)
475    
476    checkpoint59b
477    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
478      - export/import (between ocean & coupler) fields needed for ocean DIC.
479    o pkg/seaice:
480      - get rid of three more exchanges seaice_calc_viscosities (required
481        different loop boundaries in seaice_lsr and seaice_ocean_stress)
482      - bug fix in seaice_ocean_stress (update of lab_sea required)
483      - reduce loop boundaries to necessary minimum also in seaice_evp
484      - go back to the old way of computing deltaC/Z as the adjoint likes that
485        better
486    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
487      passive tracer to an Age Tracer) + update output.txt
488    o pkg/exf:
489      - implement A-grid / C-grid selection for wind-stress input files.
490      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
491      for now, in exf_bulk_largeyeager04.F only :
492      - change implementation for case where windspeed + 2. components wind-stress
493        are read-in. AND use rhoConstFresh to convert evap.
494    o pkg/seaice:
495      - use correct EXCH_UV for wind-forcing (on A-grid).
496      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
497        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
498    o pkg/exf:
499      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
500      EXF_INTERPOLATION:
501      - merge global_with_exf/code version of exf_interp_read.F
502        to the main code ;
503      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
504        reading the file ; Important: This options needs to be defined to recover
505        previous code.
506        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
507      - no longer loose real*8 precision along the way when using exf_iprec=64.
508    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
509      - change discretisation of evp-solver in order to avoid another exchange
510        (changes lab_sea) and clean up a little
511      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
512        help the adjoint (this also changes the results slightly)
513      - add a few "_d 0" where they had been missing in seaice_evp.F
514      - cleaning up: remove unused seaice_calc_rhs.F
515    o pkg/exf: some cleaning-up:
516      - change various "constants" into runtime parameters
517      - cleaned-up Large&Yeager04 routine which should eventually
518        replace exf_bulkformulae.F (changed names of S/R and CPP)
519        and merged various ALLOW_ATM_WIND options
520     only used with thsice pkg (in thsice_get_exf.F):
521      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
522        which are used when useStabilityFct_overIce=TRUE (= the default)
523      - change default values of ice & snow emissivity and scale downward LW
524        by ice & snow emissivity.
525    o pkg/thsice:
526     fix few little problems, in thsice_calc_thickn.F:
527      - growth vertically (and not laterally) if iceFrac == iceMaskMax
528      - melt only laterally if hIce < hThinIce (as the comments say)
529      and in thsice_extend.F:
530      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
531      - start to form ice as soon as the minimum ice-volume is reachable.
532     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
533      and cpl_aim+ocn
534    o pkg/kpp
535     - move computation of surface related input fields to KPP into a new
536       subroutine kpp_forcing_surf.F
537     - remove wrong (within bi,bj loops) EXCH calls.
538     - little cleaning (add argument myThid in last position, cvs header ...)
539     - for now, fix conservation problem by exchanging KPPviscAz (may not
540       be the best fix)
541    o pkg/seaice
542     - check for inconsistent evp parameter/cpp-flag combination
543     - remove leftover errIO flat for obsolete name list error handling
544    o OpenAD
545     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
546    
547    checkpoint59a
548    o pkg/seaice: some parameter clarifications and a little bit of clean up
549    o pkg/thsice: rename run-time parameters:
550       himin       -> hIceMin
551       himin0      -> hThinIce
552       hihig       -> hThickIce
553       i0          -> i0swFrac
554       transCoef   -> bMeltCoef
555       frac_energy -> fracMelting
556      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
557       with default values (for now) that do not change the results.
558      remove old version of thsice vars advection in pkg/seaice.
559    o in FFIELDS.h:
560      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
561      - make pLoad & sIceLoad always available (but still only used if
562         ATMOSPHERIC_LOADING is #define).
563    o pkg/kpp: replaced _KPP_RL with _RL
564    o bug fixes for vertical diffusivity computations when both KPP and
565        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
566        are no longer updating the vertical diffusivity array
567        (passed as argument) but are (re-) setting those arrays.
568    o pkg/seaice: fix bug in evp solver, while doing that
569      - change (improve?) discretization of stress computations for both
570        cgrid-lsr and evp solver
571      - add a new routine to compute strain rates
572      - the above changes lab_sea results
573      - add no slip conditions for evp solver (off by default), lsr-version
574        may follow
575      - fix exchange for shear at Z-points (does not change lab_sea)
576      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
577        (to force the user to pick a time step since there is not "safe" way
578        of choosing it)
579      - add principal stress diagnostics
580      - rearrange fields for evp a little to avoid having to call a: too many
581        exchanges and b: exchanges for stress trensor components which we do
582        not have.
583      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
584        of evp, complete rewrite for lsr case (latter is does not yet work
585        in all cases)
586    o pkg/kpp: add code to have mixing in shelf ice caverns
587      - add myThid to all kpp routines (long overdue)
588    
589    checkpoint59
590    o pkg/exf:
591      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
592        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
593      - move exf header files from lower_case.h to UPPER_CASE.h ;
594        add missing cvs Header & Name
595      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
596      - add namelist param. selectStressGridPosition, exf_monFreq
597      - retire many _CLIM routines, and remove data.exf_clim
598        + params moved to data.exf
599        + climsst, climsss now handled by exf_set_gen, i.e.
600          climss?period=0 refers to constant field,
601          climss?period=-12 to monthly forcing
602      - split up namelists in data.exf
603    o pkg/seaice:
604      - remove seaice_exch and seaice_exch_uv
605      - remove superfluous exchange of theta
606      - add myThid to seaice_budget_ocean/ice
607      - add new interface for atmospheric wind forcing (C-grid only)
608        + new routine
609        + two new field (taux, tauy for stress over ice)
610        + removed one global field (DAIRN) for C-grid case only
611    o pkg/thsise
612      - 2nd set of modifs for thsice adjoint in conjunction with exf
613    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
614    
615    checkpoint58y_post
616    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
617      vertical diffusivity, similar to that in MOM4; turned on using
618      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
619      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
620    o Added capability for 3D specification of background vertical diffusion
621      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
622      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
623      "data" file that contains the 3D vertical diffusivity coefficients.
624    o ice dynamics (pkg/seaice) with thsice thermodynamics:
625      - add code within pkg thsice to advect & diffuse sea-ice fields
626      similar to (and will replace) what has been added in  seaice_advdiff.F,
627      but: - conserving Mass, Heat & Salt.
628           - better when using non-linear advection scheme (not yet fully tested)
629           - can also be used in atmospheric set-up (for now, only the diffusion).
630    
631    checkpoint58x_post
632    o IO option for global-file compact format:
633      - add options when generating topology (utils/exch2/matlab-topology-generator)
634      - add I/O capability (pkg/mdsio).
635      - adapt utils/matlab/rdmds.m to read this format.
636      for now long-line format not yet supported by pkg/mdsio (& exch2).
637    o shelfice: add a few diagnostics
638    
639    checkpoint58w_post
640    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
641      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
642      (and replace horiVertRatio in NH code).
643      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
644                         and tutorial_plume_on_slope (sensitive to truncation)
645    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
646      directly to drive seaice model (C-grid only)
647    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
648     - reintroduce computation of wind from stress,
649     - compute tau (in exf_bulkformulae.F) from windstress averaged to
650       mass points to avoid tau = 0
651     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
652    o rdmnc.m: make it work with "global" files created with gluemnc
653    o rdmnc.m : some improvements in dealing with singleton dimension
654      (tested on all testreport mnc output files).
655    o genmake2: disable pkg/profiles if netcdf test fails.
656    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
657    o move call to cal_readparms up to make calendar parameters/variable available
658      to all packages
659    
660    checkpoint58v_post
661    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
662      useDynP_inEos_Zc tested.
663    o pkg/exf: changes to properly interpolate/mask/scale initial fields
664    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
665      and portions thereof.  See read_cs.txt for description and examples.
666    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
667      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
668      following the great-circle arc between those 2 points.
669    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
670      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
671    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
672     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
673     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
674     - still needs work (not working with some options ; efficiency to improve)
675       and serious testing.
676     - use this scheme for temperature & salinity in 2 advection test exp.:
677       advect_xy & advect_xz, respectively.
678    
679    checkpoint58u_post
680    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
681    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
682    o testreport: add option "-skipdir" to skip some test.
683    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
684      momentum calculation.
685    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
686    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
687      remove checkpoint.F and the_correction_step.F (no longer used);
688      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
689    o add option (linFSConserveTr) to correct for tracer source/sink due to
690      Linear Free surface
691    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
692    o pkg/thsice: fix reading mnc-pickups
693    
694    checkpoint58t_post
695    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
696    o pkg/mdsio:
697     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
698       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
699       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
700     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
701     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
702       either MDS_READ_FIELD or MDS_WRITE_FIELD )
703     - new S/R (to replace MDSWRITEMETA), which allows to write more
704       informations (variable names, time ...) to meta files.
705     - modify rdmds.m to give back the meta file content.
706    o pkg/diagnostics: change vertical interpolation to be safer, and more
707       flexible (define p-levels to interpolate to in data.diagnostics);
708      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
709       diagnostic pointer.
710    o pkg/seaice: more cleaning up of seaice_growth, added many comments
711    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
712    o fix multi-category seaice:
713     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
714       SEAICE_MULTICATEGORY
715     - fix short wave heat flux
716    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
717       and allow to use EVP solver. Change forward lab_sea: test both EVP
718       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
719    o Initial check-in of lab_sea adjoint
720      (very similar to natl_box_adjoint/code_seaice)
721      * used C-grid and EVP solver
722      * used KPP, GM/Redi
723      * uses inAdExact=.TRUE.
724      * gradient checks fail for both ADM and TLM
725        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
726        f.d. gradients actually seem more problematic than ADM, TLM gradients;
727        issue is related to forward mismatch between g77 an ifort
728    o pkg/seaice: overhaul of thermodynamics
729     - growth.F and groatb.F are replaced by new routine seaice_growth.F
730     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
731     - move a few global fields out of SEAICE.h into seaice_growth.F and
732       make them 2D (FICE/QNETO/ ...)
733     - remove FO (it is the same as QNETO)
734     - introduce a few local fields to avoid modifying external fields such
735       as atemp, etc.
736    
737    checkpoint58s_post
738    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
739      changed exf_set_gen.F so that
740        genperiod=0 means input file is one time-constant field and
741        genperiod=-12 means input file contains 12 monthly means
742    o CG2D: use pre-computed solver main-diagonal (stored in common block);
743      this affects truncation error ; generate new output file for exp. which
744      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
745        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
746        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
747        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
748        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
749        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
750    o start implementation of deep-atmosphere and anelastic formulation
751    o verification: remove 2nd copy of input files and use script "prepare_run"
752      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
753    o mom_common/vecinv/fluxform: fix a few initialisation isssues
754    o profiles: fix for multithreaded case
755    
756    o diagnostics: rename few diags:
757      s/'PRESSURE'/'RCENTER '/g
758      s/'TICE    '/'oceFreez'/g
759      s/'TAUX    '/'oceTAUX '/g
760      s/'TAUY    '/'oceTAUY '/g
761      s/'SWFLUX  '/'oceQsw  '/g
762      s/DIFx/DFxE/g
763      s/DIFy/DFyE/g
764      and add few ocean-forcing diagnostics:
765      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
766    o modifications to pkg/seaice/growth.F and budget.F, which change results of
767      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
768      as actual snow thickness.  It now refers everywhere to effective snow
769      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
770    
771    checkpoint58r_post
772    o modifications to pkg/seaice/growth.F, which change results of
773      lab_sea experiment: fixes pertain to melting snow over open water, to
774      masking EVAP under sea ice, and to using the correct AREA variable for
775      computations of EVAP, PRECIP, HSNOW, and GHEFF
776    o add ability to read bathy, salt, and theta using MNC (off by def)
777    o add flooding algorithm and advection of HSNOW for pkg/seaice;
778      both are turned off by default and do no change any results
779    o seaice advection with pkg/thsice: a step toward the use of non-linear
780      advection scheme, but #ifdef or commented out for now (requires more EXCH).
781    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
782      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
783      in natl_box (affects results @ truncation level: update output.txt)
784    o multi-threading and IO:
785      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
786      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
787        (needed to work with SingleCpuIO): tested in all verif. exp.
788    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
789      affects the results (but none of the verification test uses this scheme).
790    o Adding some pkg/diagnostics capability to pkg/seaice
791      (will certainly be subject to changes)
792    o ctrl: adding new control variables:
793      lwflux, lwdown, evap, snowprecip, apressure, runoff
794    
795    checkpoint58q_post
796    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
797      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
798      high_res_cube configuration by 4% on Columbia.
799    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
800      add (in global_with_exf/code) a version of EXF_INTERP_READ without
801      dynamical allocation (seems to work in multi-threaded).
802    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
803      single CPU io) so that TAF does not have to see EESUPPORT.h
804    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
805    
806    checkpoint58p_post
807    o obcs: stop if obcs is used with useCDscheme = .true.
808    o shelfice:
809     - fix a sign error so that no slip at shelfice interface works
810     - remove stop for combination non-hydrostatic code and shelfice. That does
811       not mean, that the results are correct, but at least they are numerically
812       stable
813    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
814    o added adjoint exch routined for all exch*3d* routines
815      and updated flow directives
816    
817    checkpoint58o_post
818    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
819      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
820    o change controling S/R for writing pickup file (new S/R do_write_pickup)
821      and clean-up reading/writing of pickup files.
822    o fix local version of read/write pickup (NH part) in rotating_tank/code
823    o simplify EXCH interface:
824     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
825     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
826    o added the regrid package
827    o shelfice:
828     - add a simple boundary layer scheme to reduce noise
829     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
830    
831    checkpoint58n_post
832    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
833       local variable (not in common block).
834    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
835      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
836      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
837        to work with SingleCpuIO.
838    o add "_d 0" to real constant of pkg/cfc subroutines ;
839       update exp. cfc_exemple & tutorial_cfc_offline output files.
840    o multi-threading and IO:
841      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
842        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
843      - barrier before and after reading.
844      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
845      - avoid using MDS_WRITELOCAL for LAND pkg output.
846      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
847        common-block variables ; Allows multi-threading with master-thread IO.
848    o change default MAX_NO_THREADS from 32 to 4 ;
849      and stop cleanly when MAX_NO_THREADS is too small.
850    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
851    
852    checkpoint58m_post
853    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
854       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
855    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
856       keep global_ocean.90x40x15 (for AD testing) with former secondary test
857       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
858    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
859        add MITgcm_tutorials (= code + all the tutorials)
860    o ecco, option to compute cost for total ssh (mean+anom)
861    o consistent with addition of ptracer and ssh in pkg/profiles
862    o profiles: adding ptracer and ssh
863    o testreport: change multi-test output-file name
864      (from output.txt.{name} to output.{name}.txt)
865    o profiles: now ok for mutli-tiles case
866    o seaice: add 4 parameters for different advection schemes for area,
867      (effective) seaice thickness, enthalphy, and snow height. Their default
868      is the standard parameter SEAICEadvScheme
869    o calc_gw:
870     - add cosFacU in zonal viscous flux (harmonic.visc.).
871     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
872       of tutorial_plume_on_slope.
873    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
874    o calc_gw: true flux-form, account for horizontal grid spacing.
875      update rotating_tank results, but not plume_on_slope (affected at
876      truncation level, 11 digits).
877    
878    checkpoint58l_post
879    o calc_gw:
880     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
881     - remove side-drag for now (need to fix it); update plume_on_slope results.
882     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
883    o commit code to make SST/SSS weights spatially variable
884      (based on either variable in-situ or variable initial T/S weights)
885    o pkg/ecco:
886      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
887        now based on horizontally varying weights wthetaLev, wsaltLev
888      * cost_averagesflags now returns year indices in addition to day, month
889      * sflux balance is performed on annual basis
890        (sflxumm, sfluxmm2, bal_sfluxmm)
891      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
892        including separate counting and multipliers
893    o pkg/rbcs
894      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
895    
896    checkpoint58k_post
897    o testreport:
898     - always build in dir. "build" (if not there, mkdir build instead of building
899       & running in input)
900     - run in dir run (if it exists), in build otherwise.
901     - call prepare_run (if input/prepare_run exists)
902     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
903    o pkg/exf modifications to interpolation and rotation routines for more
904       reasonable treatment of North Pole singularity: for tracers North Pole
905       value is set to northernmost zonal-mean value, for zonal velocity it is
906       set to zero, and for meridional velocity it is set to northernmost value.
907    o pkg/exf/exf_check_range.F
908     - add tile index to diagnostics and move stop statement to the very
909       end of the routine.
910    o pkg/diagnostics: (diagnostics_main_init.F)
911      define title of isomorphic variables according to the current config.
912    o pkg/thsice with pkg/seaice dynamics:
913    - fix domain of computation (interior only, required for exf) and do exchanges
914    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
915    o towards a standard way of dealing with multi-threading in MONITOR
916      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
917    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
918       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
919    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
920    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
921    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
922       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
923    o tracer advection:
924     - clean-up and simplify calc_common_factors.F
925     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
926       advection subroutine (but still not used within DST advection S/R)
927    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
928    
929    checkpoint58j_post
930    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
931      from file (collects calls previously in FORWARD_STEP)
932    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
933    o adjoint store dir. adjusted accordingly
934    o genmake2
935      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
936    
937    checkpoint58i_post
938    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
939      on wind stress (SEAICEstressFactor defaults to 1.)
940    o Total number of Timers is finite (<=40): comment out 2 non-essential one
941      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
942    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
943      on CS-grid: no longer loosing mass.
944    o exf & curvilinear-grid: no longer modify longitude xC & xG.
945    o pkg/ggl90: fix sloppy output and fix a bug
946    o pkg/seaice: added SEAICEuseEVPpickup parameter
947      - Set to false in order to start EVP solver with
948        non-EVP pickup files when using SEAICEuseEVP
949      - fix sign error in diffusion in seaice_calc_rhs
950    
951    checkpoint58h_post
952    * Modifications for bottom topography control
953      o replace hFacC by _hFacC at various places
954      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
955      o add non-self-adjoint cg2d_nsa
956      o update autodiff support routines
957      o re-initialise hfac after ctrl_depth_ini
958      o works for 5x5 box, doesnt work for global_ocean.90x40x15
959    * Adding verification for 5x5 box (4-layer) bottom topography control
960    
961    checkpoint58g_post
962    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
963       used for mean seasonal cycle, mean diurnal cycle); add an example
964       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
965    o pkg/ggl90:
966      - add parameter (minimum surface kinetic energy)
967      - fix bug (avoiding division by zero)
968    o couple pkg/thsice to pkg/seaice:
969      - modify advection in seaice to accomodate new scalar fields to be advected
970      - only muliDimAdection scheme work with seaice/thsice
971      - mapping of thsice-variables to seaice-variables, back and forth
972      - does not break the verification experiments, but does not give the
973        desired results either
974    o pkg/seaice
975      - make (default) second order advection a bit less confusing?
976    
977    checkpoint58f_post
978    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
979      to pkg/seaice):
980      - new routines thsice_map_exf and thsice_get_exf provide the interface
981      - add an additional formal parameter to thsice_solve4temp
982    o pkg/exf:
983      - add new fields wspeed, snowprecip (to be able to couple to thsice)
984      - correct Stefan-Boltzmann constant
985      - new parameter for longwave surface emittance
986      - separate some stuff from exf_bulkformulae into new routines  
987        exf_radiation, exf_wind
988      - add new parameters and constants: longwave emissivity for ocean, ice
989        and snow, evaporation parameters over ice
990      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
991        either wind from stress or stress from wind
992    o pkg/thSIce:
993    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
994    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
995       and THSICE_CALC_THICKN
996    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
997    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
998      to make debugging easier.
999    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1000    o pkg/bulk_force:
1001      - clean-up comments and parameters ;
1002      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1003    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1004      generate new output for test-experiment: aim.5l_cs.thSI
1005    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1006      testreport accordingly
1007    
1008    checkpoint58e_post
1009    o SEAICE_CGRID adjoint done
1010    o R_STAR adjoint implemented.
1011      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1012      * need to sort out init. of h0facc, etc.
1013    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1014      to be able to use it in pure forward.
1015    
1016    checkpoint58d_post
1017    o upgrade simple test-experiment to tutorial example:
1018     step.1: duplicate the experiment and (step.2) will remove the old copy.
1019      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1020      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1021      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1022      tutorial_global_oce_biogeo    <- copy of dic_example
1023      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1024      tutorial_plume_on_slope       <- copy of plume_on_slope
1025      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1026      tutorial_global_oce_optim     <- empty for now (David ?)
1027      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1028     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1029    o correct a sign problem in cost_scat.F
1030    o obcs and ptracers: fix boundary conditions for advections schemes
1031      with larger stencil
1032    o thsice adjoint: start
1033    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1034      completeness
1035    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1036      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1037    o ptracers adjoint:
1038      * avoid extensive recomputatations
1039      * fix missing re-init. of gptr (missed by TAF)
1040    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1041      me to turn off the excessive output to STDOUT that this package produces
1042    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1043      and add those terms in Vector-Invariant formulation.
1044    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1045      if the control period (xx_hfluxperiod etc) is 0
1046    o in profiles pkg, clean routines and fix details
1047    o in ecco pkg, reading ssh data:
1048      fix problem in case the model does not start at iter0=0
1049    o fix mnc-pickup/restart for ptracers
1050    o new package prifiles:
1051      code to compute profile-based cost by Gael Forget
1052      (modifs in ecco, ctrl, autodiff)
1053    o Benign bug fix in initialization (spotted by M. Mazloff) of
1054      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1055    
1056    checkpoint58c_post
1057    o adjoint: finish NLFS adjoint and provide reference output in
1058      verification/global_ocean.90x40x15/results_ad_nlfs
1059    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1060      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1061      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1062      with SEAICE_CGRID defined.
1063    o move calendarDumps from "data" to "data.cal" and clean-up the code
1064      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1065    o add useEXF & useCAL flags (for now, set in hard-coded way)
1066    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1067      (were missing in NH mode, and wrong in quasihydrostatic mode).
1068      waiting for Chris updated version of calc_gw to add those CALLs.
1069    o fix bug in quasihydrostatic S/R ;
1070      add a test for this option: global_ocean.90x40x15.qshyd
1071    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1072      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1073    o add on/off flag useOffLine for package OFFLINE
1074    o seaice:
1075      - modify advection so that it works also on the C-grid
1076      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1077        problem in multi-tile runs with C-grid
1078      - add flags for clipping ice velocities and/or masking solver forcing
1079      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1080        C-grid solver
1081      - added a few comments to seaice_diffusion.F
1082      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1083        are now exclusive)
1084      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1085        required re-ordering the code a little:
1086       + make DAIRN global variable (defined in SEAICE)
1087       + move computation of the viscosities eta and zeta into a new separate
1088         routine (because I need to recompute them in seaice_ocean_stress.F)
1089    
1090    checkpoint58b_post
1091    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1092      update output.txt of exp. aim.5l_cs.thSI
1093    o various mnc cleanups and improvements:
1094      + shrink lookup tables by factor of ~4
1095      + better error reporting when running out of lookup space
1096      + able to handle longer path/file names (up to 500 chars)
1097    o adjoint:
1098      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1099      - TBD: "hidden" mom_vecinv recomp. in dynamics
1100    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1101     (allow to differentiate between forcing components using new integer flags:
1102      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1103     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1104    o ecco
1105      - enable trend removal from SSH anomaly obs.
1106    o adjoint
1107      - a fix for PmEpR when #undef EXACT_CONSERV
1108      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1109      - try to fix "hidden" recomp. in forward_step for NLFS
1110        (NLFS seems broken sometimes after I checked it in)
1111    o seaice:
1112     - add c-grid version of the dynamic solver:
1113       + three new routines that are the c-grid substitute lsr, dynsolver
1114         and ostres
1115       + put a few fields that were local to dynsolver into global common
1116         blocks, so that I can move the computation of stresses etc into
1117         seaice_lsr (saves coding but may break the adjoint).
1118     - replace more hardwired parameters by runtime parameters
1119     - add ice masks that mask the rhs of the implicit solvers where there
1120       is no ice (commented out in seaice_dynsolver, because i am not sure
1121       if this works properly), eventually this should replace the clipping
1122       of ice velocities in seaice_dynsolver to +/-40cm/s.
1123    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1124      include it only where its needed
1125    o move balancing of fluxes before the call of external_forcing_surf
1126    o seaice:
1127      - correct units of turning angles (now they are really in degrees)
1128      - move computation of GWATX/Y out of main routine into dynsolver
1129      - initialize GWATX/Y in seaice_init
1130    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1131      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1132    o seaice: add runtime flags for turning angles (default to zero)
1133    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1134      and trend from exf forcing and ctrl control adjustments
1135    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1136      (since checkpoint57x_post)
1137    o change the default rotation period to 86164.s = the Earth rotation
1138    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1139      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1140    o seaice advection: add code for choosing between the default (2nd order
1141      central differences) and multiDim advection schemes provided by
1142      pkg/generic_advdiff
1143    o seaice:
1144      - removed all references to SEAICE_GRID.h fields from
1145        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1146        (cubed-sphere configuration will change a little)
1147      - grid computations in seaice_init are obsolete now.
1148      - cleaned up code a little so that is easier to read (hopefully).
1149      - added new (better?) discretizations of default advection and diffusion
1150        (turn on with SEAICEuseFluxForm)
1151      - replace 1 in 3d global fields by kSurface in growth.F
1152      
1153    checkpoint58a_post
1154    o seaice:
1155      - bug fix in advect.F
1156    o shelfice:
1157      - separate shelfice load anomaly from pload (breaks with time
1158        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1159        Its default is 0., but it may be computed more cleverly from (unknown)
1160        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1161        done offline. A good approximation of the pressure load anomaly is
1162        necessary to avoid large initial adjustment processes underneath
1163        deep-reaching shelfice.
1164      - small fix in ISOMIP shelfice_thermodynamics
1165      - add more sophisticated thermodynamics of Hellmer (1989), this is
1166        now the default
1167      - give a few constants more intuitive names
1168    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1169      if bulk formulae are used in long integration (especially EmPmR). Turn
1170      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1171      if balancePrintMean, the imbalance that is substracted is printed to
1172      STDOUT.
1173    o fix bug (typo) in obcs_apply_eta.F
1174    o add a new package shelfice which enables us to model the circulation
1175      underneath shelf-ice with draughts of hundreds of meters.
1176     - works
1177     - to do: + include improved thermodynamics
1178              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1179                instead of new field kTopC
1180              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1181                instead of new field R_shelfIce and new code in ini_depth.F
1182                and ini_mask_etc.F?
1183              + adjust vertical mixing schemes?
1184    o seaice pkg:
1185     - add a cpp-flag to include a simple formula for a salinity dependent
1186       freezing point of sea water at the surface
1187     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1188       meridional stresses are now different (and hopefully correct)
1189    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1190       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1191       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1192    o pkg/diagnostics: add options and parameters for regional-statistics
1193       diagnostics ; define regions by reading a region-mask from a file
1194       (might add other options later)
1195    o pkg/bulk_force:
1196     - add option and parameters to use AIM surface-flux formulae.
1197     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1198       others forcing fields (defined in PARM05, parameter file "data") are loaded
1199       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1200     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1201     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1202     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1203       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1204     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1205    
1206    checkpoint58
1207    o add "--embed-source" option to genmake2 which, when the supporting
1208      tools can be compiled (as determined by genmake2) will turn on the
1209      embed_files package which then embeds the entire MITgcm source code
1210      (*.[fFhc] + Makefile) used for the build within the executable
1211      - requested by CNH but off by default
1212      - adds a paltry <9MB to the mitgcmuv executable in most cases
1213      - only writes the output when useEMBEDSRC in eedata is true
1214    o clean up 3-dim. relaxation codes:
1215      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1216      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1217      * Thanks to Tom Haine for testing!
1218    
1219    checkpoint57z_post
1220    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1221      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1222    o fix the pickup behavior for obcs in combination with ptracers
1223    o fix a bug in ptracers_external_fields_load
1224    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1225      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1226    o transfered surface NH pressure to eta field (if exactConserv).
1227    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1228         and update lab_sea output.txt file.
1229    o completing 3-dim. relaxation code: additional term
1230         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1231      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1232      * At compile time, in "EXF_OPTIONS.h" set
1233          #define  ALLOW_CLIMTEMP_RELAXATION
1234          #define  ALLOW_CLIMSALT_RELAXATION
1235      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1236          tauThetaClimRelax3Dim = 15552000.0,
1237          tauSaltClimRelax3Dim  = 15552000.0,
1238      * 3 cases:
1239          1) Use a constant-in-time 3-dim. field
1240          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1241          3) Real-time relax. to time-evolving prescribed field
1242    o Adding Laplacian-type smoothness constraint on
1243      initial and boundary (forcing) controls (ic, bc)
1244      * enable at compile-time via
1245        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1246      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1247      * Absolute scale somewhat unclear so far
1248      * no area weighting was included since no other cost term does so far
1249    
1250    checkpoint57y_post
1251    First step for a NLFS adjoint
1252    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1253    o new init. routines for calc_r_star, calc_surf_dr
1254    o still need to deal with ini_masks_etc
1255    o testreport seemed happy
1256    checkpoint57y_pre
1257    
1258    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1259    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1260    o add new offset feature to offline pkg (plus minor cleanup)
1261    o cfc fixes for final year of integration
1262    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1263      be in GCHEM_OPTIONS).
1264    
1265    checkpoint57x_post
1266    o fix testreport Pb in multiple test experiment.
1267    o cleanup our namelist syntax in verification:
1268      - make it more F95 standards compliant (some work still needed)
1269      - allows the vast majority of our tests to work with gfortran
1270    o Non-Hydrostatic:
1271     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1272     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1273    o Allow to apply AB on T,S rather than on AB(gT,gS):
1274     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1275     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1276       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1277     - need a "clever" read_pickup to restart from the other AB formulation
1278    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1279    o remove some unused variables (reduces number of compiler warnings)
1280    o adjoint
1281      * Disable useVariableViscosity for adjoint for time being
1282        (there are a number of extensive recomputations)
1283      * Initialize certain variables needed for adjoint
1284    
1285    checkpoint57w_post
1286    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1287                 fix the singleCpuIO RS version of MDSWRITEFIELD
1288       and add a WARNING if using globalFiles=T with multi-processors.
1289    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1290      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1291    o tracer advection scheme:
1292      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1293       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1294       was not very convenient).
1295      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1296       (further tests needed for the implicit DST & Flux-Limiter schemes).
1297    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1298      and sRef for convenience, handy, when you want to initialize
1299      ptracers in a large domain with a constant non-zero value. Also,
1300      untangle ptracers_init.F a little.
1301    
1302    checkpoint57v_post
1303    o change dome exp. to use variable viscosity in side-drag terms.
1304    o remove all the files from the cfc_offline test since they are now
1305      incorporated into tutorial_cfc_offline which has been producing
1306      identical results for a few days of testing
1307    o add new parameter: sideDragFactor to enable half-slip-side BC
1308      and change side-drag S/R to use viscosity from mom_calc_visc
1309      (can switch back by setting sideDragFactor=0.); affects results at
1310      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1311       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1312    o vorticity & strain are now computed without masking, to account for
1313      no-slip-side BC in variable viscosity calculation ; mask is applied
1314      anyway later on, before computing advection/coriolis terms.
1315    o modify exp4 to test new obcs support for reading from external files
1316      and for passive tracers
1317    o fix behavior of ptracers_monitor when monitor output is written to a
1318      netcdf-file; still not independent of monitor.F (writes in the same
1319      file).
1320    o change default value of tRef (put a uniform, meaningful value for ocean
1321      & atmos) and initialize sRef (was missing, as Martin mentioned).
1322    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1323      to be proportional to enstrophy dissipation length.  Thus,
1324       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1325      This is now consistent with Smagorinsky and with the manual.
1326    
1327    checkpoint57u_post
1328    o OBCS and PTRACERS: add open boundary support for passive tracers
1329      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1330        OB-values from file; this is not different from the way theta and salinity
1331        are treated
1332      - however, Orlanski-radiation conditions are not supported, and the model
1333        will stop if you use pTracers and Orlanski at the same time.
1334      - beefed up the rountine obcs_external_fields_load: now only those open
1335        boundary values are overwritten with values from files for which there
1336        are really files, otherwise the OB-fields remain untouched. This makes
1337        it possible to use different OBs at different ends of the domain (as
1338        with EXF)
1339    o reduce number of exch calls in shap_filt (s2).
1340    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1341      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1342    
1343    checkpoint57t_post
1344    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1345    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1346      same truncation, independent of the face number: affects affects several
1347      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1348    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1349      note that biharmonic viscosity + no-slip was not tested in any experiment.
1350    o fix bug in non-linear free-surf side-drag ; generate new output for
1351      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1352    o make mnc honor the writeBinaryPrec flag for most kinds of output
1353    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1354    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1355      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1356    o add brackets in multi-terms sum to get same truncation, independent of
1357      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1358      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1359    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1360      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1361      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1362      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1363      Suggested values of viscosity parameters found in mom_calc_visc.
1364      Many new viscosity diagnostics available.
1365    
1366    checkpoint57s_post
1367    o Add clearing-house for viscosity calculations, mom_calc_visc and
1368      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1369      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1370      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1371      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1372      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1373      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1374      ViscAhStrain and viscAhTension are now retired.
1375    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1376    o In response to JMC's bug report, genmake2 now ignores any soft-links
1377      that it finds in the *current* directory when searching for files.
1378      Soft-links found in any other source directories will still work as
1379      they did before.
1380    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1381      a C routine to unlimit the stack size
1382    o mnc-ify pkg/aim snapshot vars
1383    o mnc-ify pkg/land as requested by Daniel
1384    o various changes to mnc including:
1385      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1386      - output can now be grouped so that all files within a group
1387          change the ITER portion of their names in lock-step together
1388      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1389          and works with both EXCH1 and EXCH2 (but needs more testing)
1390      - writing works for all verification test cases w/ g77 on Linux
1391    
1392    checkpoint57r_post
1393    o make MNC variable initialization happen earlier
1394    o add diagnostics for (almost) each term of the momentum Eq.
1395    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1396    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1397    o remove MINIMAL_TAVE_OUTPUT option ;
1398      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1399    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1400      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1401    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1402    o add time-dependent SST, SSS control
1403    o cost terms in ecco/ modularized (new cost_generic.F)
1404    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1405    o new infrastructure for seaice model vs. obs misfits in seaice/
1406      * driver from the_main_loop.F is seaice_cost_driver.F
1407      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1408      * gradient check in Exp. 6a of natl_box_adjoint/
1409    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1410      (see README file)
1411    
1412    checkpoint57q_post
1413    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1414    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1415      - bug was reported by Jean-Michel and Ian Fenty
1416    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1417      update exp. cpl_aim+ocn output.
1418    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1419      Needed for high-res. runs with large global files
1420      to be able to limit tapelev size
1421    o Changed some tests for adjoint:
1422      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1423      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1424      * global_ocean.90x40x15/ back to default 3-level checkpointing
1425    o Modifications to enable scripted COMMON to MODULE conversion
1426      * verification/OpenAD/code/ has necessary scripts and description;
1427      * converts, compiles and runs successfully;
1428    
1429    checkpoint57p_post
1430    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1431    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1432      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1433    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1434    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1435      (was already the case for dissipation with mom_vecinv,
1436       and also the case for grad.PhiHyd when staggered-timeStep)
1437      This will allow to put dissipation out-off the AB time-stepping.
1438     Unfortunately, affects truncation error. Update output of exp. that "fails"
1439      (cg2d matching number) and leave the others for later: front_relax(10),
1440      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1441      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1442    
1443    checkpoint57o_post
1444    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1445      (2) its ready to be documented during the 20050801 DocFest
1446    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1447      for ideal_2D_oce and lab_sea on linux_ia32_g77
1448    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1449      in global1x1_tot/code_seaice_adj to access indices 32, 33
1450      (worth another tag)
1451    
1452    checkpoint57n_post
1453    o adding precip control xx_precip 32
1454    o adding swflux control xx_swflux 33
1455    o Replacing 10 forcing penalty cost routines by 1 generic.
1456    o Implementing partitioning in time-mean and variable adjustment
1457      for atmos. state.
1458    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1459    o in natl_box_adjoint:
1460      * updated exp 1 to 10
1461        (but does not have time-mean vs. variable split results yet)
1462    o updated global1x1/*_seaice_adj/
1463      to incorporate latest changes
1464    o enable useSingleCpuIO for mdsio vector routines
1465      (applies in particular to tapelev I/O)
1466    o removed inefficient K-loop in all active_file*control*.F
1467    
1468    checkpoint57m_post
1469    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1470      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1471    o pkg/exch2: filling of face-corner halo regions is optional
1472      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1473    
1474    checkpoint57l_post
1475     tag before updating tutorials (pre-release-2)
1476    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1477       for output and interpolation of input fields onto model grid)
1478    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1479       Affects results of exp. rotating_tank ; update output.txt.
1480    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1481          and taking the square quantity and/or using a fraction-weight field.
1482    o fix aim_diagnostics_init.F mate numbers.
1483    o add mnc output capability to diagnostics/diagstat and update
1484      our cvsignore files for the ACSII output generated
1485    
1486    checkpoint57k_post
1487    o lab_sea now uses diagnostics package and provides a suite of
1488      new EXF diagnostics output.
1489    
1490    checkpoint57j_post
1491    o exf
1492      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1493        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1494        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1495      * extended diagnostics output
1496        - now includes all EXF variables
1497        - hs, hl moved to common block
1498        - separate S/R for diagnostics, called after ctrl vector is added
1499        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1500        - EXFqnet contains true Qnet (i.e. includes qsw)
1501      * updated verif. lab_sea, global_with_exf
1502      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1503        to ensure that diagnostics sees a true EXFqnet
1504    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1505    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1506      several times with different frequencies.
1507    o mnc-ify the thsice package as requested by Daniel Enderton
1508      - the monitor--MNC output needs work
1509      - many attributes need to be added (most are currently blank)
1510    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1511      - many attributes need to be added (most are currently blank)
1512    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1513    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1514    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1515      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1516         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1517    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1518     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1519    
1520    checkpoint57i_post
1521    o Diagnostics package was changed: diagnostic allocation is now deactivated
1522      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1523    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1524      add 1rst Order upwind vertical Shear.
1525    o add a quick fix for A/B checkpointing in OFFLINE mode
1526    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1527      end-run around the C/Fortran linking horror in eesup/src/timers.F
1528    o added pkg/runclock: allows user to terminate run based on wall clock
1529    o added non-hydrostatic scaling parameter: nh_am2
1530    o pkg/my82: futile attempt to make results compiler-independent by adding
1531      some "_d 0", etc. no effect.
1532    o for mnc output, fill the 'T' coordinate var with myTime and create a
1533      separate 'iter' variable for iteration count
1534    o pkg/diagnostics:
1535      add new capability: output of Global/Regional & per-level statistics ;
1536      tested against monitor output (including land & thSIce) on various exp.
1537    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1538    
1539    checkpoint57h_done
1540      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1541      data.diagnostics, data.gchem, data.ptracers) is done.
1542    
1543    o pkg/diagnostics: prepare for Global/Regional statistics.
1544      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1545    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1546      and rename it: DIFFERENT_MULTIPLE
1547    
1548    checkpoint57h_post
1549    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1550    o pkg/diagnostics: change output frequency, now in seconds (instead
1551      of Nb of iterations). This requires to change data.diagnostics.
1552    checkpoint57h_pre
1553    
1554    o in mnc, let the user create the output dir if both mnc_outdir_date
1555      and mnc_outdir_num are false
1556    o add fflags() to pkg/diagnostics which allows one to specify, on a
1557      per-file basis, the file precision [default behavior is unchanged]
1558    o added diagnostics to pkg/kpp, including computation of mixed layer
1559      depth based on a temperature/density criterion
1560    o updated verification/natl_box to test the new pkg/kpp diagnostics
1561    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1562    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1563    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1564      not mnc -- this mistake was found by JMC and is now corrected
1565    
1566    checkpoint57g_post
1567    o add Adams-Bashforth 3rd Order time stepping:
1568      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1569      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1570    checkpoint57g_pre
1571    
1572    o make lambda[Theta,Salt]ClimRelax spatially varying
1573      (default remains spatially uniform constant based on tau)
1574    o added new control variables
1575      * init. uVel, vVel, etanN
1576      * lambda[Theta,Salt]ClimRelax
1577    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1578      (suggested by G. Forget)
1579    
1580    checkpoint57f_post
1581    o add parameter "baseTime" = model base time = time at iteration zero
1582      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1583      account for baseTime shift
1584    o move Coriolis arrays from PARAMS.h to GRID.h
1585    checkpoint57f_pre
1586    
1587    o mnc-ifying the seaice package
1588    o introduced an alternative length scale calculation for use in the limiting
1589      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1590    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1591    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1592      as well as grad(vort3).  Made it compatible with both approximate form
1593      for the cubed sphere and full form of these gradients.  Added flag
1594      useFullLeith to select between approximate and full form.  
1595    o add "d0" in getcon.F to reduce differences between compilers/platforms
1596      update output.txt of exp. fizhi-gridalt-hs
1597    o change port_rand funtion to allow to set the seed.
1598    o fix obscure MNC bug involving conversion between reals and integers
1599      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1600        new version is now more standards-compliant
1601    o adjoint-related modifications
1602      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1603      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1604      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1605    
1606    checkpoint57e_post
1607    o Adding eddy stress controls a la Ferreira et al.
1608    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1609    
1610    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1611      update output.txt of exp. fizhi-gridalt-hs
1612    o add more "Z" dimensions and associated coordinate vars to MNC
1613    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1614    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1615      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1616      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1617      months and years.  Requires pkg/cal.
1618    o diagnostics: add pickup functionality
1619      - off by default for backwards compatibility
1620      - current version only uses MDSIO -- MNC will be added
1621    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1622    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1623    
1624    checkpoint57d_post
1625    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1626    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1627      output from the diagnostics package
1628    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1629    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1630      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1631    o add coordinate variables to the MNC output from the diagnostics package
1632    o change MNC-flags default value: true when useMNC=TRUE
1633    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1634      the ability (off by default) to read the grid information using MNC
1635    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1636    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1637    o do snap-shot diagnostics at the middle of the time-interval (instead of
1638      at the end).
1639    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1640      new test for AIM with thSIce + slab-ocean
1641    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1642    o move state variable diagnostics to the beginning of the time step ;
1643      (note: still needs some work specially for snap-shot diagnostics)
1644      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1645    
1646    checkpoint57c_post
1647    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1648    o generate new output.txt files on faulks with g77 & the new -ieee option
1649    checkpoint57c_pre
1650    
1651    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1652      update output.txt of exp. global_ocean.90x40x15
1653    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1654      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1655    o add saltFlux(+File) forcing capability with periodicExternalForcing
1656    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1657    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1658    o improvements for the MNC output from DIAGNOSTICS:
1659      - correct handling of the unlimitied dimension
1660      - all dims now have associated coordinate variables
1661      - variables located at U, V, and Corner ("Z") points are now written
1662        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1663        *all* data points are output
1664    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1665    o added pkg/seaice/seaice_monitor.F
1666    o mdsio_readfield.F can now read files visible only to master MPI process.
1667    o pkg/seaice: some test code for ice-modified ocean stress
1668    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1669      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1670      spurious negative numbers for precipitation and humidity.  Will cause
1671      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1672    o pkg/ctrl/
1673      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1674        May be enabled via doPackDiag
1675      *  introduce z-scaling of
1676         + gradient (doZscalePack) and
1677         + control (doZscaleUnpack)
1678    o pkg/mdsio/
1679      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1680      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1681    
1682    checkpoint57b_post
1683    o simplify options in diagnostics_fill arguments (remove weird combinations)
1684    o fix MNC coordinate variables so that they now contain per-face index
1685      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1686      general, EXCH2 grids are only aligned to a "local" coordinate system
1687    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1688    o Implement instantaneous output within pkg diagnostics:
1689      setting a negative frequency in data.diagnostics produces
1690     "snap-shot" output (as opposed to time-average if freq > 0)
1691    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1692      NOTE: change ptracer diagnostics name: use 2 characters to work with
1693            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1694    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1695      becomes the coordinate variable for the 'T' dimension
1696    o add CF-style coordinate variables to MNC
1697      - just a first cut:  numbers are meaningless on the cubesphere and
1698        missing along the T axis but otherwise it works!
1699    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1700    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1701    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1702      this is based directly on what the model compute, so that the content of
1703      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1704    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1705    o clean up build options files for SunOS, in particular
1706      - remove -traditional from xmakedepend
1707      - change -xarch=v9 to -xarch=native for f77
1708      - restore use of make (not gmake)
1709      - add CC=gcc if using g77
1710    o changes per discussion of AM, JMC, & EH3 today:
1711      - move redundant "grid" variables out of "state" -- in preparation of
1712        creating proper CF-style coordinate variables and in recognition
1713        that any/all grid variables can be easily copied (eg. w/NCO) from
1714        the grid files into any of the other NetCDF files
1715      - *always* output grid variables with MDSIO (this will eventually be
1716        changed)
1717      - output MNC grid file if useMNC is true
1718    o every instance of _END_MASTER() has been found and replaced with
1719      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1720      preprocessors
1721    o re-arrange diagnostics pkg initialisation:
1722     - allow each package to extend the available diagnostics list
1723     - add some checking and fix small problems (multi-threaded, ...)
1724     - new S/R diagnostics_fill (replace fill_diagnostics):
1725       look through the short list of active diag. (instead of the long list)
1726       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1727    
1728    checkpoint57a_post
1729    o this set of changes restores TAMC compatibility
1730      tested for global_ocean.90x40x15 adjoint on trough
1731      (what a pain)
1732    
1733    checkpoint57a_pre
1734    o some modifs in tools/build_options for sunos
1735    o call ctrl_pack for ctrl at end for optimcycle=0
1736    
1737    checkpoint57
1738    o add horizontal bi-harmonic viscosity for vertical velocity
1739      - new parameter viscA4W (defaults to viscA4)
1740      - affects only non-hydrostatic code
1741      - to be done: no-slip lateral boundary conditions
1742    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1743    o implement Implicit Vertical advection for pTracers
1744    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1745      (implemented also for implicit vertical diffusion & advection)
1746    o OBCS: extend application of tracer open boundary conditions
1747      to a strip beyond the boundary of width Olx/Oly
1748    o add call monitor to TAF set of required calls (flow directives)
1749      and include in natl_box_adjoint
1750    o untangle a few ifdefs related to cost, ctrl, autodiff
1751      untangel a few ALLOW_ECCO_OPTIMIZATION
1752    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1753      (theta2, salt2 in ecco_cost_weights)
1754    
1755    checkpoint56c_post
1756    o OBCS as control variables
1757      - update ctrl_ad_diff.list, obcs_ad_diff.list
1758      - remove balance of obcs controls from default
1759      - fix index bug nobcs in ctrl_init
1760      - fix dummy fields filen in ctrl_pack
1761      - add dummy weights for obcs
1762    o lsopt: comment out fort.94 output
1763    o optim:
1764      - remove unnecessary header files
1765      - adjusted namelists
1766      - add xerbla.F to Makefile
1767    o exf:
1768      - multiple modifications of exf_check_range
1769      - unit change in exf_init_runoff from [m/year] to [m/s]
1770    o mdsio:
1771      - i/o-vector change debugLevel from debLevA to debLevB
1772    
1773    checkpoint56b_post
1774    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1775      is called from DO_THE_MODEL_IO
1776      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1777      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1778      - clean up PTRACERS_WRITE_TIMEAVE a little
1779    o add another verification experiment that tests both the cfc-pkg and
1780      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1781      reactive tendencies treated inline with regular timestepping
1782    o testreport previously did a lousy job of comparing small numbers, so
1783      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1784      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1785      testreport.
1786    o ptracers_monitor: bug fix for MPI
1787    
1788    checkpoint56a_post
1789    o GCHEM: finish reorganizating the package
1790      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1791        (introduces another 3D-array for each passive tracer, but only if
1792        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1793        gchemTendency is not needed because the timestep is done separately)
1794      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1795      - GCHEM is now---more or less cleanly---separate from PTRACERS
1796      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1797        so clear to me how that should be done in a general way.
1798    o CFC: improve formatting of output in CFC_ATMOS
1799    o PTRACERS:
1800      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1801        that ALL experiments with ptracers enable can be checked. This makes
1802        GCHEM_MONITOR obsolete.
1803      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1804        monitorFreq
1805      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1806    o add PTRACERS (PTR0[1-5]) to testreport output
1807  o exf_check_range:  o exf_check_range:
1808    * default changed to .TRUE.    * default changed to .TRUE.
1809    * will check values for niter0 if debLevA, every timestep if debLevB    * will check values for niter0 if debLevA, every timestep if debLevB
# Line 24  o GCHEM: Line 1825  o GCHEM:
1825      be replaced by a 3D array that is computed before thermodynamics; for      be replaced by a 3D array that is computed before thermodynamics; for
1826      this, the tracer ID iTracer had to be included into the parameter list      this, the tracer ID iTracer had to be included into the parameter list
1827      of ptracers_forcing      of ptracers_forcing
1828    - set up forward_step for a call to gchem_forcing, that will replace    - set up forward_step to call gchem_forcing, that will replace
1829      gchem_forcing_int in ptracers_forcing      gchem_forcing_int in ptracers_forcing
1830    - cleaning up    - cleaning up
1831  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

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