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revision 1.198 by edhill, Tue Oct 28 22:57:59 2003 UTC revision 1.963 by mlosch, Wed Feb 27 23:33:15 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/shelfice:
8      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
9        (kg/m^2/s), does not break tests, because in verification/isomip,
10        rhoConstFresh=rhoConst (by accident)
11      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
12      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
13        new file model/src/seawater.F, so that they are available for all pkgs.
14      - convert potential temperature into in-situ temperature. This changes the
15        isomip tests => update tests
16    o add a flag writePickupAtEnd (default=true) to be able to suppress
17      writing a pickup at the last timestep
18    o pkg/profiles:
19      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
20      (for "less than 32 characters name" compiler requirement)
21    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
22      conditions that have a different sampling frequency than S/T/U/V obcs
23    o pkg/diagnostics (stats-diags):
24      - fix global Min/Max in case 1 processor get only empty tiles
25    o genmake2: replace (4 times)
26         make genmake_tc_1.o >> genmake_warnings 2>&1
27      with
28         COMM="$CC $CFLAGS -c genmake_tc_1.c"
29         echo $COMM >> genmake_warnings
30         $COMM >> genmake_warnings 2>&1
31      to make genmake2 always see the value of CC as specified in the optfile.
32    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
33      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
34      - modify verification advect_cs test to test SOM-advection on CS-grid.
35    o pkg/ctrl:
36      - Rewrite of ctrl_map_ini_ecco.F,
37        introducing a generic routine (ctrl_map_ini_gen.F).
38      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
39    
40    checkpoint59n
41    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
42      number in dedicate array "hdiag":
43      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
44        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
45      - many small changes (integer format) for large number of diagnostics
46      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
47        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
48    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
49      usingSphericalGrid, this allows to define the rotated grid coordinates
50      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
51      geographical coordinates according to the inverse of the rotation defined
52      by the Euler angles, so that Coriolis parameter and online-interpolation by
53      exf works with the geographical coordinates on XC/YC/XG/YG.
54      Naturally, this feature does not work with all packages, so some
55      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
56      profiles), because there the coordinates are assumed to be regular
57      spherical grid coordinates.
58    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
59      - introduce isopycnal diffusion coefficient control.
60    o tools/adjoint_options:
61      - additional control vector components.
62    o pkg/mnc: have mnc create marginally meaning full coordinate variables
63      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
64    o pkg/mypackage:
65      - add example of read/write pickup for state-var ;
66      - add entry points to the main code for state-vars diags & write-pickup.
67    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
68      transitions for useExfYearlyFields
69      - add new subroutine that determines the file to read from for
70        use*YearlyFields = .TRUE. and .FALSE.
71      - add a verification experiment to global_with_exf that tests
72        useExfYearlyFields with USE_EXF_INTERPOLATION defined
73    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
74      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
75      subroutines (which could be generated from a template, because they are
76      almost identical), for now they are included in obcs_prescribe_read.F for
77      simplicity
78    o pkg/exf:
79      - add a little more diagnostic to exf_interp_read (in analogy to
80        mds_read_field, can be turned off with debugLevel < debugLevA=1)
81      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
82        ugly but fast by unrolling short inner loops, inserting a unroll=8
83        directive in routine lagran, and splitting a loop and making do while the
84        outermost loop (the latter requires the intoduction of index arrays)
85    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
86    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
87      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
88    o verification/seaice_obcs: updated for restart test and latest options
89    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
90      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
91      for now this is only available for the C-grid code and also within
92      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
93    
94    checkpoint59m
95    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
96      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
97    o gad_som : fix flux output (& diagnostics) to have same units as other  
98      advection scheme fluxes (was previously multiplied by deltaT).  
99    o added verification/seaice_obcs both to test seaice open boundaries
100      and to provide an example matlab scrpt for generating them
101    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
102    o pkg/salt_plume: clean up salt_plume_frac.F to
103      remove redundancy in PlumeMethod 1 and 4
104    o pkg/kpp: added saltplume diagnostics
105    o pkg/obcs and pkg/seaice:
106      - do not set uice and vice to zero when OB*icefile are unspecified
107      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
108      - moved seaice tracer obcs after call to seaice_growth
109    o pkg/salt_plume: added various options for salt plume depth
110      criterion and for vertical distribution of the salt
111    
112    checkpoint59l
113    o pkg/ptracers: new version of ptracers pickup:
114      read meta file and write only fields which are needed to restart.
115      ( same logic as main pickup file ; also using pickupStrictlyMatch )
116    o pkg/seaice:
117      - add timescale for melting due to warm mixed layer as a means of
118        setting SEAICE_availHeatFrac more conveniently
119      - add a CPP-flag/runtime parameter check for flooding algorithm
120      - reformulated availHeat in seaice_growth.F to be independent of AREA
121    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
122      unit changes
123    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
124    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
125      SX vector computer.
126    o pkg/seaice:
127      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
128        seaice forcing fields can now be read only through pkg/exf
129      - removed some unused halos
130    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
131    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
132      or U/VICE from U/VWIND before computing U/VSTRESS
133    
134    checkpoint59k
135    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
136      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
137    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
138      all experiments pass when compile with un-initialised var. checking option.
139    o added pkg/salt_plume
140    o script to test restart (for now, in MITgcm_contrib/jmc_script)
141    o pkg/seaice: new read/write pickup version.
142      read meta file and write only fields which are needed to restart.
143      ( same logic as main pickup file ; also using pickupStrictlyMatch )
144    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
145    o lab_sea.hb87: modify the domain & update output.hb87.txt :
146      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
147      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
148      process. Fixed here by closing the domain at the Northern boundary.
149    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
150    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
151      a set of consecutive levels in/from a 3-D array.
152    o pkg/ptracers:
153      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
154      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
155    
156    checkpoint59j
157    o in pkgs: dic, obcs, offline, rbcs:
158      standard way to compute coeff. for time interpolation between 2 time reccords
159      which retains full precision (& make results less dependent on compiler).
160      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
161    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
162      packages instead of reading ice cover and wind speed separately
163    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
164     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
165      to allow to compile customized code before the update)
166    o cleaning-up:
167      - fix CPP instruction syntax in pkg/obcs
168      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
169        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
170      - fix some threads issue in IO parts.
171    o pkg/dic:
172      - add tons of "_d 0" (--> much better testreports !)
173       and then update outputs of tutorial_global_oce_biogeo
174    o pkg/mom_fluxform:
175      add a special version of momentum advection intended to conserve momentum
176      next to a bathymetry step or a coastline edge. (default = off = #undef)
177    o new read/write pickup version:
178      - for now, only implemented for main (mdsio) pickup file.
179      - write out only what is needed to restart; merge pickup_nh , pickup_ph
180        and main pickup together.
181      - read meta file; read only what is needed to restart; stop if a field
182        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
183        if it make sense (even if the restart is not perfect).
184      - if no meta file, assume that pickup to read corresponds exactly to
185        a pickup that would currently be written.
186      - read pickup written in the old format (until checkpoint59i) if it
187        recognizes an old meta file (no field-list).
188      - add a meta file in exp. which starts from a pickup: 2 cases:
189        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
190         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
191        b) a meta file describing the content of the associated pickup file
192         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
193    o pkg/mdsio & pkg/rw:
194      - new routine to read a meta file ; new set of routine to read
195        Multiple-fields file (with meta file).
196    o added open boundary conditions capability for seaice
197        HSNOW, HSALT, UICE, and VICE
198    
199    checkpoint59i
200    o adjoint:
201      * fix multiDimAdvection adjoint
202        (partial recomputation problem by TAF for fVerT(:,:,kDown)
203        and comlev1 size definition (maxpass vs. max. number of tracers)
204      * verification/global_ocean.90x45x15 adjoint now tests
205        NLFS and multiDimAdvection using DST3 (=30)
206      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
207    o pkg/kpp: add "_d 0" to real constant (if missing);
208      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
209      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
210    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
211      for internal parameters related to restart process (formerly from PARAMS.h)
212      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
213    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
214      as argument. (only atm2d & obcs write_pickup have not yet been updated)
215    o pkg/monitor:
216      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
217      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
218      - account for deep Atmosphere factor and density factor (anelastic)
219    o added open boundary conditions capability for seaice HEFF and AREA
220    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
221      thermodynamics
222      - requires a little reorganization, which affects the testreport results
223        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
224        so that now the conservative form is tested
225      - add a few comments
226    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
227    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
228    o add new diagnostics to seaice: advective, diffusive fluxes (only for
229      multidim-advection, for scheme 2 they are not filled) and transports,
230      thermodynamic growth rates
231    o change units of EmPmR (inside the code, + within coupling interface)
232      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
233      Affects results @ truncation level (cg2d match) and update output of
234       experiments: lab_sea(6), global_ocean.90x40x15(10),
235      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
236      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
237      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
238      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
239    
240    checkpoint59h
241    o pkg/exf:
242      - improve vectorization by moving if-statement out of loops in
243        exf_mapfields, exf_radiation
244      - exf_bulkformulae.F: introduce 2D fields and vectorize code
245    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
246    o testreport:
247      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
248        monitor & update offline_exf_seaice exp. output.
249      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
250    o pkg/seaice:
251      - bug fix in the evp solver: boundary conditions were affected be
252        masking of zMax/zMin (changes results)
253      - minor bug fix in boundary conditions in seaice_calc_strainrates
254        (changes results for no_slip)
255      - seaice_lsr.F: make interpolation of eta dependent on boundaries
256      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
257      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
258        stress formulation and no-slip boundary conditions
259    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
260      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
261    o pkg/seaice: a first HSALT time stepping equation has been checked in
262    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
263      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
264      without requiring DO-IF statements
265    o pkg/thsice:
266      use continuous power-law function for partition of energy between lateral
267      melting/freezing and thinning/thickening ; old code using step function
268      still available with #undef THSICE_FRACEN_POWERLAW
269      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
270    o testreport: change AD testing : check against results/output_adm.txt
271      using same scripts as for forward test.
272    
273    checkpoint59g
274    o adjoint testing: in preparation for changing testreport:
275      - output format: cost and grad written on separated lines
276      - ad output results in directory "results" (instead of "results_ad")
277    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
278    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
279    o pkg/ecco: allow user defined cost function contributions
280    o testreport:
281      Allow to choose (per experiment) the list of tested output variables
282       and the main variable (used to issue a pass/FAIL ) ;
283      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
284      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
285      Also modify printing of summary:
286       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
287       b) echo the list of tested variables in the individual summary.txt of
288          each experiment.
289    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
290      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
291      (but still depend on the tile decompostion of the domain).
292    o pkg/seaice: change a discretization detail to make the B-grid code
293      "more symmetric". This change is likely to remove all "ridges/leads" that
294      where quasi-aligned with the grid in B-grid solutions. It may also be
295      the solution to the stress coupling issues with the B-grid.
296    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
297      remove .cvsignore from input dir. (since testreport no longer run here).
298    o pkg/thsice:
299     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
300     - fix reshaping of sea-ice just after advection:
301       melt all the ice only if ice-volume is too small.
302     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
303       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
304     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
305    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
306      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
307    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
308      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
309      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
310      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
311      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
312      -> update output.txt
313    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
314     this affects truncation error: -> update output.txt of exp:
315      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
316      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
317    
318    checkpoint59f
319    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
320    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
321      a bounded range (in forward mode)
322    o pkg/ecco, ctrl, autodiff and mom_common:
323     internal parameter controls, completements of implementations
324    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
325    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
326      (not seem any difference in testing results).
327    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
328       at face corners.
329    o pkg/generic_advdiff:
330     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
331      loop range indices for computing vertical advection tendency
332      and do the calculation in the interior only (no overlap) ;
333      for now, only implemented for SOM advection (to save CPU time).
334     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
335    o exch2 adjoint
336      First set of changes:
337      - add exch2 hand-written adjoint templates
338      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
339        This will require cleanup in pkg/autodiff/*.F
340        (changed routines currently kept separate in verif. code/)
341      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
342        that used to hide exch2 or cubed-sphere specific code
343        (commented via 'cph-exch2')
344    o pkg/seaice
345      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
346    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
347       output of global_ocean.cs32x15.thsice .
348    
349    checkpoint59e
350    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
351      for B-grid vector (not yet tested) and C-grid vector (<- only used
352      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
353    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
354      (#ifdef ALLOW_SALT_PLUME)
355    o gather_2d/scatter_2d: removed halo regions
356    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
357      scheme and the corresponding test case (under front_relax dir). For now,
358      only available with Skew-flux form and not yet tested in realistic set-up.
359      adjoint: store directives updated, but gradient checks deteriorated,
360      so maybe GM/Redi adjoint is now broken.
361    o seaice adjoint
362      * add AREA, HEFF, HSNOW as control variable
363        (should not change lab_sea results)
364      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
365    o pkg/seaice:
366      * added computation of saltFlux in seaice_growth;
367        For time being, sea ice salinity is assumed constant
368        contribution of snow flooding to freshening of sea ice is neglected.
369        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
370        defaults to 0.0 in order to maintain backward compatibility.
371        Typical values for SEAICE_salinity are 4 to 10 g/kg.
372      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
373      * added SEAICE_availHeatFrac, which specifies fraction of surface level
374        heat content used to melt or grow ice
375      * commented out cap of HICE: it helps keep ice thinner
376      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
377      * applied OBCS T/S mask to HEFFM sea ice mask
378    
379    checkpoint59d
380    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
381     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
382     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
383    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
384     and change default value of parameter "GM_Small_Number";
385     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
386       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
387       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
388    o pkg/ecco: cost function when applying pkg/smooth to controls
389    o pkg/ctrl: add forcingPrecond run time parameter
390    o pkg/seaice:
391     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
392     - fix bug in metric terms of u-equation in LSR solver (implicit part),
393       changes verification/lab_sea
394     - rearrange implicit part of u-equation in LSR solver to make it easier to
395       read, understand, and debug. This causes changes at the truncation level.
396     - fix (serious) bug in the boundary conditions (sign error in the implicit
397       part) of the LSR solver. Changes all LSR results.
398     - fixed problem with HSNOW initialization to avoid thick snow when AREA
399       is initilized with small values - does not change lab_sea results.
400     - added HsnowFile initialization capability
401    o pkg/smooth: addition to model/src and pkg/ctrl so allow
402     initialization of pkg/smooth and application to control vector
403    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
404    o dependencies: pkg/profiles requires pkg/cal
405    o pkg/profiles:
406     - added option ALLOW_PROFILES_GENERICGRID
407         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
408         that interpolation information (grid points and coefficients) is provided
409         within the netcdf input files.
410         -> sample matlab scripts can be found in MITgcm_contrib/gael
411         that allow you to prepare netcdf input files.
412     - also modified: cleaner include statements, cleaner error print statements,
413       cleaner stops when error, and more tests of the netcdf input files consistency.
414    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
415    o pkg/seaice:
416     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
417       requires a new routine: seaice_diagnostics_fill.F
418     - make sure that seaice does not move if not forced (pressure replacement
419       method, Hibler and Ip, 1995), changes results
420     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
421     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
422       It is turned off by default (=-1.), because it changes the results.
423     - make it possible to read AREA from a file, too.
424    
425    checkpoint59c
426    o add S/R and diagnostics for oceanic mixed-layer depth
427    o move GMRedi call after all vertical mixing schemes (including KPP)
428    o pkg/thsice:
429     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
430      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
431    o pkg/obcs:
432     - bug fix for balance code
433    o pkg/seaice:
434      - allow values of SEAICE_elasticParm > 1
435      - add new parameter SEAICE_evpTauRelax as an alternative
436        to SEAICE_elasticParm
437      - make lsr boundary conditions free slip (by default), changes result
438      - add code for no slip boundary conditions for lsr
439      - set minimum of zeta to zero (and not 4e8) (changes results)
440      - add a cap on AREA after advecting AREA if seaice_growth is not called
441    o change calculation of Visbeck K:
442      - no longer depend on tapering scheme; instead, compute slope (limited
443        by GM_maxSlope). this is equivalent to what was comuted before with
444        clipping or linear tappering.
445      - fix vertical averaging (wrong by 1/2 level)
446      - leave the old version (but will not be maintained) within
447        #ifdef OLD_VISBECK_CALC / #endif
448      - update output of exp. ideal_2D_oce
449    o change error catch in calc_r_star to improve vectorization
450    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
451      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
452    o adjoint:
453      Re-organized adjoint checkpointing according to Matt Mazloff
454      (but with modifs/completions/cleanups)
455      Storing is now bundled into large arrays to optimized I/O
456      (and second step in cleanup of the_main_loop)
457    
458    checkpoint59b
459    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
460      - export/import (between ocean & coupler) fields needed for ocean DIC.
461    o pkg/seaice:
462      - get rid of three more exchanges seaice_calc_viscosities (required
463        different loop boundaries in seaice_lsr and seaice_ocean_stress)
464      - bug fix in seaice_ocean_stress (update of lab_sea required)
465      - reduce loop boundaries to necessary minimum also in seaice_evp
466      - go back to the old way of computing deltaC/Z as the adjoint likes that
467        better
468    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
469      passive tracer to an Age Tracer) + update output.txt
470    o pkg/exf:
471      - implement A-grid / C-grid selection for wind-stress input files.
472      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
473      for now, in exf_bulk_largeyeager04.F only :
474      - change implementation for case where windspeed + 2. components wind-stress
475        are read-in. AND use rhoConstFresh to convert evap.
476    o pkg/seaice:
477      - use correct EXCH_UV for wind-forcing (on A-grid).
478      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
479        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
480    o pkg/exf:
481      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
482      EXF_INTERPOLATION:
483      - merge global_with_exf/code version of exf_interp_read.F
484        to the main code ;
485      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
486        reading the file ; Important: This options needs to be defined to recover
487        previous code.
488        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
489      - no longer loose real*8 precision along the way when using exf_iprec=64.
490    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
491      - change discretisation of evp-solver in order to avoid another exchange
492        (changes lab_sea) and clean up a little
493      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
494        help the adjoint (this also changes the results slightly)
495      - add a few "_d 0" where they had been missing in seaice_evp.F
496      - cleaning up: remove unused seaice_calc_rhs.F
497    o pkg/exf: some cleaning-up:
498      - change various "constants" into runtime parameters
499      - cleaned-up Large&Yeager04 routine which should eventually
500        replace exf_bulkformulae.F (changed names of S/R and CPP)
501        and merged various ALLOW_ATM_WIND options
502     only used with thsice pkg (in thsice_get_exf.F):
503      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
504        which are used when useStabilityFct_overIce=TRUE (= the default)
505      - change default values of ice & snow emissivity and scale downward LW
506        by ice & snow emissivity.
507    o pkg/thsice:
508     fix few little problems, in thsice_calc_thickn.F:
509      - growth vertically (and not laterally) if iceFrac == iceMaskMax
510      - melt only laterally if hIce < hThinIce (as the comments say)
511      and in thsice_extend.F:
512      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
513      - start to form ice as soon as the minimum ice-volume is reachable.
514     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
515      and cpl_aim+ocn
516    o pkg/kpp
517     - move computation of surface related input fields to KPP into a new
518       subroutine kpp_forcing_surf.F
519     - remove wrong (within bi,bj loops) EXCH calls.
520     - little cleaning (add argument myThid in last position, cvs header ...)
521     - for now, fix conservation problem by exchanging KPPviscAz (may not
522       be the best fix)
523    o pkg/seaice
524     - check for inconsistent evp parameter/cpp-flag combination
525     - remove leftover errIO flat for obsolete name list error handling
526    o OpenAD
527     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
528    
529    checkpoint59a
530    o pkg/seaice: some parameter clarifications and a little bit of clean up
531    o pkg/thsice: rename run-time parameters:
532       himin       -> hIceMin
533       himin0      -> hThinIce
534       hihig       -> hThickIce
535       i0          -> i0swFrac
536       transCoef   -> bMeltCoef
537       frac_energy -> fracMelting
538      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
539       with default values (for now) that do not change the results.
540      remove old version of thsice vars advection in pkg/seaice.
541    o in FFIELDS.h:
542      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
543      - make pLoad & sIceLoad always available (but still only used if
544         ATMOSPHERIC_LOADING is #define).
545    o pkg/kpp: replaced _KPP_RL with _RL
546    o bug fixes for vertical diffusivity computations when both KPP and
547        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
548        are no longer updating the vertical diffusivity array
549        (passed as argument) but are (re-) setting those arrays.
550    o pkg/seaice: fix bug in evp solver, while doing that
551      - change (improve?) discretization of stress computations for both
552        cgrid-lsr and evp solver
553      - add a new routine to compute strain rates
554      - the above changes lab_sea results
555      - add no slip conditions for evp solver (off by default), lsr-version
556        may follow
557      - fix exchange for shear at Z-points (does not change lab_sea)
558      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
559        (to force the user to pick a time step since there is not "safe" way
560        of choosing it)
561      - add principal stress diagnostics
562      - rearrange fields for evp a little to avoid having to call a: too many
563        exchanges and b: exchanges for stress trensor components which we do
564        not have.
565      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
566        of evp, complete rewrite for lsr case (latter is does not yet work
567        in all cases)
568    o pkg/kpp: add code to have mixing in shelf ice caverns
569      - add myThid to all kpp routines (long overdue)
570    
571    checkpoint59
572    o pkg/exf:
573      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
574        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
575      - move exf header files from lower_case.h to UPPER_CASE.h ;
576        add missing cvs Header & Name
577      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
578      - add namelist param. selectStressGridPosition, exf_monFreq
579      - retire many _CLIM routines, and remove data.exf_clim
580        + params moved to data.exf
581        + climsst, climsss now handled by exf_set_gen, i.e.
582          climss?period=0 refers to constant field,
583          climss?period=-12 to monthly forcing
584      - split up namelists in data.exf
585    o pkg/seaice:
586      - remove seaice_exch and seaice_exch_uv
587      - remove superfluous exchange of theta
588      - add myThid to seaice_budget_ocean/ice
589      - add new interface for atmospheric wind forcing (C-grid only)
590        + new routine
591        + two new field (taux, tauy for stress over ice)
592        + removed one global field (DAIRN) for C-grid case only
593    o pkg/thsise
594      - 2nd set of modifs for thsice adjoint in conjunction with exf
595    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
596    
597    checkpoint58y_post
598    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
599      vertical diffusivity, similar to that in MOM4; turned on using
600      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
601      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
602    o Added capability for 3D specification of background vertical diffusion
603      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
604      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
605      "data" file that contains the 3D vertical diffusivity coefficients.
606    o ice dynamics (pkg/seaice) with thsice thermodynamics:
607      - add code within pkg thsice to advect & diffuse sea-ice fields
608      similar to (and will replace) what has been added in  seaice_advdiff.F,
609      but: - conserving Mass, Heat & Salt.
610           - better when using non-linear advection scheme (not yet fully tested)
611           - can also be used in atmospheric set-up (for now, only the diffusion).
612    
613    checkpoint58x_post
614    o IO option for global-file compact format:
615      - add options when generating topology (utils/exch2/matlab-topology-generator)
616      - add I/O capability (pkg/mdsio).
617      - adapt utils/matlab/rdmds.m to read this format.
618      for now long-line format not yet supported by pkg/mdsio (& exch2).
619    o shelfice: add a few diagnostics
620    
621    checkpoint58w_post
622    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
623      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
624      (and replace horiVertRatio in NH code).
625      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
626                         and tutorial_plume_on_slope (sensitive to truncation)
627    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
628      directly to drive seaice model (C-grid only)
629    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
630     - reintroduce computation of wind from stress,
631     - compute tau (in exf_bulkformulae.F) from windstress averaged to
632       mass points to avoid tau = 0
633     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
634    o rdmnc.m: make it work with "global" files created with gluemnc
635    o rdmnc.m : some improvements in dealing with singleton dimension
636      (tested on all testreport mnc output files).
637    o genmake2: disable pkg/profiles if netcdf test fails.
638    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
639    o move call to cal_readparms up to make calendar parameters/variable available
640      to all packages
641    
642    checkpoint58v_post
643    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
644      useDynP_inEos_Zc tested.
645    o pkg/exf: changes to properly interpolate/mask/scale initial fields
646    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
647      and portions thereof.  See read_cs.txt for description and examples.
648    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
649      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
650      following the great-circle arc between those 2 points.
651    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
652      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
653    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
654     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
655     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
656     - still needs work (not working with some options ; efficiency to improve)
657       and serious testing.
658     - use this scheme for temperature & salinity in 2 advection test exp.:
659       advect_xy & advect_xz, respectively.
660    
661    checkpoint58u_post
662    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
663    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
664    o testreport: add option "-skipdir" to skip some test.
665    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
666      momentum calculation.
667    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
668    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
669      remove checkpoint.F and the_correction_step.F (no longer used);
670      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
671    o add option (linFSConserveTr) to correct for tracer source/sink due to
672      Linear Free surface
673    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
674    o pkg/thsice: fix reading mnc-pickups
675    
676    checkpoint58t_post
677    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
678    o pkg/mdsio:
679     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
680       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
681       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
682     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
683     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
684       either MDS_READ_FIELD or MDS_WRITE_FIELD )
685     - new S/R (to replace MDSWRITEMETA), which allows to write more
686       informations (variable names, time ...) to meta files.
687     - modify rdmds.m to give back the meta file content.
688    o pkg/diagnostics: change vertical interpolation to be safer, and more
689       flexible (define p-levels to interpolate to in data.diagnostics);
690      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
691       diagnostic pointer.
692    o pkg/seaice: more cleaning up of seaice_growth, added many comments
693    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
694    o fix multi-category seaice:
695     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
696       SEAICE_MULTICATEGORY
697     - fix short wave heat flux
698    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
699       and allow to use EVP solver. Change forward lab_sea: test both EVP
700       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
701    o Initial check-in of lab_sea adjoint
702      (very similar to natl_box_adjoint/code_seaice)
703      * used C-grid and EVP solver
704      * used KPP, GM/Redi
705      * uses inAdExact=.TRUE.
706      * gradient checks fail for both ADM and TLM
707        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
708        f.d. gradients actually seem more problematic than ADM, TLM gradients;
709        issue is related to forward mismatch between g77 an ifort
710    o pkg/seaice: overhaul of thermodynamics
711     - growth.F and groatb.F are replaced by new routine seaice_growth.F
712     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
713     - move a few global fields out of SEAICE.h into seaice_growth.F and
714       make them 2D (FICE/QNETO/ ...)
715     - remove FO (it is the same as QNETO)
716     - introduce a few local fields to avoid modifying external fields such
717       as atemp, etc.
718    
719    checkpoint58s_post
720    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
721      changed exf_set_gen.F so that
722        genperiod=0 means input file is one time-constant field and
723        genperiod=-12 means input file contains 12 monthly means
724    o CG2D: use pre-computed solver main-diagonal (stored in common block);
725      this affects truncation error ; generate new output file for exp. which
726      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
727        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
728        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
729        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
730        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
731        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
732    o start implementation of deep-atmosphere and anelastic formulation
733    o verification: remove 2nd copy of input files and use script "prepare_run"
734      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
735    o mom_common/vecinv/fluxform: fix a few initialisation isssues
736    o profiles: fix for multithreaded case
737    
738    o diagnostics: rename few diags:
739      s/'PRESSURE'/'RCENTER '/g
740      s/'TICE    '/'oceFreez'/g
741      s/'TAUX    '/'oceTAUX '/g
742      s/'TAUY    '/'oceTAUY '/g
743      s/'SWFLUX  '/'oceQsw  '/g
744      s/DIFx/DFxE/g
745      s/DIFy/DFyE/g
746      and add few ocean-forcing diagnostics:
747      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
748    o modifications to pkg/seaice/growth.F and budget.F, which change results of
749      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
750      as actual snow thickness.  It now refers everywhere to effective snow
751      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
752    
753    checkpoint58r_post
754    o modifications to pkg/seaice/growth.F, which change results of
755      lab_sea experiment: fixes pertain to melting snow over open water, to
756      masking EVAP under sea ice, and to using the correct AREA variable for
757      computations of EVAP, PRECIP, HSNOW, and GHEFF
758    o add ability to read bathy, salt, and theta using MNC (off by def)
759    o add flooding algorithm and advection of HSNOW for pkg/seaice;
760      both are turned off by default and do no change any results
761    o seaice advection with pkg/thsice: a step toward the use of non-linear
762      advection scheme, but #ifdef or commented out for now (requires more EXCH).
763    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
764      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
765      in natl_box (affects results @ truncation level: update output.txt)
766    o multi-threading and IO:
767      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
768      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
769        (needed to work with SingleCpuIO): tested in all verif. exp.
770    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
771      affects the results (but none of the verification test uses this scheme).
772    o Adding some pkg/diagnostics capability to pkg/seaice
773      (will certainly be subject to changes)
774    o ctrl: adding new control variables:
775      lwflux, lwdown, evap, snowprecip, apressure, runoff
776    
777    checkpoint58q_post
778    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
779      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
780      high_res_cube configuration by 4% on Columbia.
781    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
782      add (in global_with_exf/code) a version of EXF_INTERP_READ without
783      dynamical allocation (seems to work in multi-threaded).
784    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
785      single CPU io) so that TAF does not have to see EESUPPORT.h
786    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
787    
788    checkpoint58p_post
789    o obcs: stop if obcs is used with useCDscheme = .true.
790    o shelfice:
791     - fix a sign error so that no slip at shelfice interface works
792     - remove stop for combination non-hydrostatic code and shelfice. That does
793       not mean, that the results are correct, but at least they are numerically
794       stable
795    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
796    o added adjoint exch routined for all exch*3d* routines
797      and updated flow directives
798    
799    checkpoint58o_post
800    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
801      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
802    o change controling S/R for writing pickup file (new S/R do_write_pickup)
803      and clean-up reading/writing of pickup files.
804    o fix local version of read/write pickup (NH part) in rotating_tank/code
805    o simplify EXCH interface:
806     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
807     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
808    o added the regrid package
809    o shelfice:
810     - add a simple boundary layer scheme to reduce noise
811     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
812    
813    checkpoint58n_post
814    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
815       local variable (not in common block).
816    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
817      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
818      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
819        to work with SingleCpuIO.
820    o add "_d 0" to real constant of pkg/cfc subroutines ;
821       update exp. cfc_exemple & tutorial_cfc_offline output files.
822    o multi-threading and IO:
823      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
824        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
825      - barrier before and after reading.
826      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
827      - avoid using MDS_WRITELOCAL for LAND pkg output.
828      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
829        common-block variables ; Allows multi-threading with master-thread IO.
830    o change default MAX_NO_THREADS from 32 to 4 ;
831      and stop cleanly when MAX_NO_THREADS is too small.
832    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
833    
834    checkpoint58m_post
835    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
836       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
837    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
838       keep global_ocean.90x40x15 (for AD testing) with former secondary test
839       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
840    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
841        add MITgcm_tutorials (= code + all the tutorials)
842    o ecco, option to compute cost for total ssh (mean+anom)
843    o consistent with addition of ptracer and ssh in pkg/profiles
844    o profiles: adding ptracer and ssh
845    o testreport: change multi-test output-file name
846      (from output.txt.{name} to output.{name}.txt)
847    o profiles: now ok for mutli-tiles case
848    o seaice: add 4 parameters for different advection schemes for area,
849      (effective) seaice thickness, enthalphy, and snow height. Their default
850      is the standard parameter SEAICEadvScheme
851    o calc_gw:
852     - add cosFacU in zonal viscous flux (harmonic.visc.).
853     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
854       of tutorial_plume_on_slope.
855    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
856    o calc_gw: true flux-form, account for horizontal grid spacing.
857      update rotating_tank results, but not plume_on_slope (affected at
858      truncation level, 11 digits).
859    
860    checkpoint58l_post
861    o calc_gw:
862     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
863     - remove side-drag for now (need to fix it); update plume_on_slope results.
864     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
865    o commit code to make SST/SSS weights spatially variable
866      (based on either variable in-situ or variable initial T/S weights)
867    o pkg/ecco:
868      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
869        now based on horizontally varying weights wthetaLev, wsaltLev
870      * cost_averagesflags now returns year indices in addition to day, month
871      * sflux balance is performed on annual basis
872        (sflxumm, sfluxmm2, bal_sfluxmm)
873      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
874        including separate counting and multipliers
875    o pkg/rbcs
876      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
877    
878    checkpoint58k_post
879    o testreport:
880     - always build in dir. "build" (if not there, mkdir build instead of building
881       & running in input)
882     - run in dir run (if it exists), in build otherwise.
883     - call prepare_run (if input/prepare_run exists)
884     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
885    o pkg/exf modifications to interpolation and rotation routines for more
886       reasonable treatment of North Pole singularity: for tracers North Pole
887       value is set to northernmost zonal-mean value, for zonal velocity it is
888       set to zero, and for meridional velocity it is set to northernmost value.
889    o pkg/exf/exf_check_range.F
890     - add tile index to diagnostics and move stop statement to the very
891       end of the routine.
892    o pkg/diagnostics: (diagnostics_main_init.F)
893      define title of isomorphic variables according to the current config.
894    o pkg/thsice with pkg/seaice dynamics:
895    - fix domain of computation (interior only, required for exf) and do exchanges
896    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
897    o towards a standard way of dealing with multi-threading in MONITOR
898      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
899    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
900       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
901    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
902    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
903    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
904       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
905    o tracer advection:
906     - clean-up and simplify calc_common_factors.F
907     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
908       advection subroutine (but still not used within DST advection S/R)
909    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
910    
911    checkpoint58j_post
912    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
913      from file (collects calls previously in FORWARD_STEP)
914    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
915    o adjoint store dir. adjusted accordingly
916    o genmake2
917      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
918    
919    checkpoint58i_post
920    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
921      on wind stress (SEAICEstressFactor defaults to 1.)
922    o Total number of Timers is finite (<=40): comment out 2 non-essential one
923      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
924    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
925      on CS-grid: no longer loosing mass.
926    o exf & curvilinear-grid: no longer modify longitude xC & xG.
927    o pkg/ggl90: fix sloppy output and fix a bug
928    o pkg/seaice: added SEAICEuseEVPpickup parameter
929      - Set to false in order to start EVP solver with
930        non-EVP pickup files when using SEAICEuseEVP
931      - fix sign error in diffusion in seaice_calc_rhs
932    
933    checkpoint58h_post
934    * Modifications for bottom topography control
935      o replace hFacC by _hFacC at various places
936      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
937      o add non-self-adjoint cg2d_nsa
938      o update autodiff support routines
939      o re-initialise hfac after ctrl_depth_ini
940      o works for 5x5 box, doesnt work for global_ocean.90x40x15
941    * Adding verification for 5x5 box (4-layer) bottom topography control
942    
943    checkpoint58g_post
944    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
945       used for mean seasonal cycle, mean diurnal cycle); add an example
946       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
947    o pkg/ggl90:
948      - add parameter (minimum surface kinetic energy)
949      - fix bug (avoiding division by zero)
950    o couple pkg/thsice to pkg/seaice:
951      - modify advection in seaice to accomodate new scalar fields to be advected
952      - only muliDimAdection scheme work with seaice/thsice
953      - mapping of thsice-variables to seaice-variables, back and forth
954      - does not break the verification experiments, but does not give the
955        desired results either
956    o pkg/seaice
957      - make (default) second order advection a bit less confusing?
958    
959    checkpoint58f_post
960    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
961      to pkg/seaice):
962      - new routines thsice_map_exf and thsice_get_exf provide the interface
963      - add an additional formal parameter to thsice_solve4temp
964    o pkg/exf:
965      - add new fields wspeed, snowprecip (to be able to couple to thsice)
966      - correct Stefan-Boltzmann constant
967      - new parameter for longwave surface emittance
968      - separate some stuff from exf_bulkformulae into new routines  
969        exf_radiation, exf_wind
970      - add new parameters and constants: longwave emissivity for ocean, ice
971        and snow, evaporation parameters over ice
972      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
973        either wind from stress or stress from wind
974    o pkg/thSIce:
975    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
976    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
977       and THSICE_CALC_THICKN
978    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
979    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
980      to make debugging easier.
981    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
982    o pkg/bulk_force:
983      - clean-up comments and parameters ;
984      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
985    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
986      generate new output for test-experiment: aim.5l_cs.thSI
987    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
988      testreport accordingly
989    
990    checkpoint58e_post
991    o SEAICE_CGRID adjoint done
992    o R_STAR adjoint implemented.
993      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
994      * need to sort out init. of h0facc, etc.
995    o Make pkg/profile fully independent of ecco,cost, etc. stuff
996      to be able to use it in pure forward.
997    
998    checkpoint58d_post
999    o upgrade simple test-experiment to tutorial example:
1000     step.1: duplicate the experiment and (step.2) will remove the old copy.
1001      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1002      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1003      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1004      tutorial_global_oce_biogeo    <- copy of dic_example
1005      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1006      tutorial_plume_on_slope       <- copy of plume_on_slope
1007      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1008      tutorial_global_oce_optim     <- empty for now (David ?)
1009      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1010     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1011    o correct a sign problem in cost_scat.F
1012    o obcs and ptracers: fix boundary conditions for advections schemes
1013      with larger stencil
1014    o thsice adjoint: start
1015    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1016      completeness
1017    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1018      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1019    o ptracers adjoint:
1020      * avoid extensive recomputatations
1021      * fix missing re-init. of gptr (missed by TAF)
1022    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1023      me to turn off the excessive output to STDOUT that this package produces
1024    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1025      and add those terms in Vector-Invariant formulation.
1026    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1027      if the control period (xx_hfluxperiod etc) is 0
1028    o in profiles pkg, clean routines and fix details
1029    o in ecco pkg, reading ssh data:
1030      fix problem in case the model does not start at iter0=0
1031    o fix mnc-pickup/restart for ptracers
1032    o new package prifiles:
1033      code to compute profile-based cost by Gael Forget
1034      (modifs in ecco, ctrl, autodiff)
1035    o Benign bug fix in initialization (spotted by M. Mazloff) of
1036      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1037    
1038    checkpoint58c_post
1039    o adjoint: finish NLFS adjoint and provide reference output in
1040      verification/global_ocean.90x40x15/results_ad_nlfs
1041    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1042      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1043      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1044      with SEAICE_CGRID defined.
1045    o move calendarDumps from "data" to "data.cal" and clean-up the code
1046      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1047    o add useEXF & useCAL flags (for now, set in hard-coded way)
1048    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1049      (were missing in NH mode, and wrong in quasihydrostatic mode).
1050      waiting for Chris updated version of calc_gw to add those CALLs.
1051    o fix bug in quasihydrostatic S/R ;
1052      add a test for this option: global_ocean.90x40x15.qshyd
1053    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1054      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1055    o add on/off flag useOffLine for package OFFLINE
1056    o seaice:
1057      - modify advection so that it works also on the C-grid
1058      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1059        problem in multi-tile runs with C-grid
1060      - add flags for clipping ice velocities and/or masking solver forcing
1061      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1062        C-grid solver
1063      - added a few comments to seaice_diffusion.F
1064      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1065        are now exclusive)
1066      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1067        required re-ordering the code a little:
1068       + make DAIRN global variable (defined in SEAICE)
1069       + move computation of the viscosities eta and zeta into a new separate
1070         routine (because I need to recompute them in seaice_ocean_stress.F)
1071    
1072    checkpoint58b_post
1073    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1074      update output.txt of exp. aim.5l_cs.thSI
1075    o various mnc cleanups and improvements:
1076      + shrink lookup tables by factor of ~4
1077      + better error reporting when running out of lookup space
1078      + able to handle longer path/file names (up to 500 chars)
1079    o adjoint:
1080      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1081      - TBD: "hidden" mom_vecinv recomp. in dynamics
1082    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1083     (allow to differentiate between forcing components using new integer flags:
1084      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1085     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1086    o ecco
1087      - enable trend removal from SSH anomaly obs.
1088    o adjoint
1089      - a fix for PmEpR when #undef EXACT_CONSERV
1090      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1091      - try to fix "hidden" recomp. in forward_step for NLFS
1092        (NLFS seems broken sometimes after I checked it in)
1093    o seaice:
1094     - add c-grid version of the dynamic solver:
1095       + three new routines that are the c-grid substitute lsr, dynsolver
1096         and ostres
1097       + put a few fields that were local to dynsolver into global common
1098         blocks, so that I can move the computation of stresses etc into
1099         seaice_lsr (saves coding but may break the adjoint).
1100     - replace more hardwired parameters by runtime parameters
1101     - add ice masks that mask the rhs of the implicit solvers where there
1102       is no ice (commented out in seaice_dynsolver, because i am not sure
1103       if this works properly), eventually this should replace the clipping
1104       of ice velocities in seaice_dynsolver to +/-40cm/s.
1105    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1106      include it only where its needed
1107    o move balancing of fluxes before the call of external_forcing_surf
1108    o seaice:
1109      - correct units of turning angles (now they are really in degrees)
1110      - move computation of GWATX/Y out of main routine into dynsolver
1111      - initialize GWATX/Y in seaice_init
1112    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1113      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1114    o seaice: add runtime flags for turning angles (default to zero)
1115    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1116      and trend from exf forcing and ctrl control adjustments
1117    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1118      (since checkpoint57x_post)
1119    o change the default rotation period to 86164.s = the Earth rotation
1120    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1121      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1122    o seaice advection: add code for choosing between the default (2nd order
1123      central differences) and multiDim advection schemes provided by
1124      pkg/generic_advdiff
1125    o seaice:
1126      - removed all references to SEAICE_GRID.h fields from
1127        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1128        (cubed-sphere configuration will change a little)
1129      - grid computations in seaice_init are obsolete now.
1130      - cleaned up code a little so that is easier to read (hopefully).
1131      - added new (better?) discretizations of default advection and diffusion
1132        (turn on with SEAICEuseFluxForm)
1133      - replace 1 in 3d global fields by kSurface in growth.F
1134      
1135    checkpoint58a_post
1136    o seaice:
1137      - bug fix in advect.F
1138    o shelfice:
1139      - separate shelfice load anomaly from pload (breaks with time
1140        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1141        Its default is 0., but it may be computed more cleverly from (unknown)
1142        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1143        done offline. A good approximation of the pressure load anomaly is
1144        necessary to avoid large initial adjustment processes underneath
1145        deep-reaching shelfice.
1146      - small fix in ISOMIP shelfice_thermodynamics
1147      - add more sophisticated thermodynamics of Hellmer (1989), this is
1148        now the default
1149      - give a few constants more intuitive names
1150    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1151      if bulk formulae are used in long integration (especially EmPmR). Turn
1152      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1153      if balancePrintMean, the imbalance that is substracted is printed to
1154      STDOUT.
1155    o fix bug (typo) in obcs_apply_eta.F
1156    o add a new package shelfice which enables us to model the circulation
1157      underneath shelf-ice with draughts of hundreds of meters.
1158     - works
1159     - to do: + include improved thermodynamics
1160              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1161                instead of new field kTopC
1162              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1163                instead of new field R_shelfIce and new code in ini_depth.F
1164                and ini_mask_etc.F?
1165              + adjust vertical mixing schemes?
1166    o seaice pkg:
1167     - add a cpp-flag to include a simple formula for a salinity dependent
1168       freezing point of sea water at the surface
1169     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1170       meridional stresses are now different (and hopefully correct)
1171    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1172       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1173       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1174    o pkg/diagnostics: add options and parameters for regional-statistics
1175       diagnostics ; define regions by reading a region-mask from a file
1176       (might add other options later)
1177    o pkg/bulk_force:
1178     - add option and parameters to use AIM surface-flux formulae.
1179     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1180       others forcing fields (defined in PARM05, parameter file "data") are loaded
1181       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1182     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1183     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1184     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1185       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1186     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1187    
1188    checkpoint58
1189    o add "--embed-source" option to genmake2 which, when the supporting
1190      tools can be compiled (as determined by genmake2) will turn on the
1191      embed_files package which then embeds the entire MITgcm source code
1192      (*.[fFhc] + Makefile) used for the build within the executable
1193      - requested by CNH but off by default
1194      - adds a paltry <9MB to the mitgcmuv executable in most cases
1195      - only writes the output when useEMBEDSRC in eedata is true
1196    o clean up 3-dim. relaxation codes:
1197      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1198      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1199      * Thanks to Tom Haine for testing!
1200    
1201    checkpoint57z_post
1202    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1203      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1204    o fix the pickup behavior for obcs in combination with ptracers
1205    o fix a bug in ptracers_external_fields_load
1206    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1207      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1208    o transfered surface NH pressure to eta field (if exactConserv).
1209    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1210         and update lab_sea output.txt file.
1211    o completing 3-dim. relaxation code: additional term
1212         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1213      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1214      * At compile time, in "EXF_OPTIONS.h" set
1215          #define  ALLOW_CLIMTEMP_RELAXATION
1216          #define  ALLOW_CLIMSALT_RELAXATION
1217      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1218          tauThetaClimRelax3Dim = 15552000.0,
1219          tauSaltClimRelax3Dim  = 15552000.0,
1220      * 3 cases:
1221          1) Use a constant-in-time 3-dim. field
1222          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1223          3) Real-time relax. to time-evolving prescribed field
1224    o Adding Laplacian-type smoothness constraint on
1225      initial and boundary (forcing) controls (ic, bc)
1226      * enable at compile-time via
1227        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1228      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1229      * Absolute scale somewhat unclear so far
1230      * no area weighting was included since no other cost term does so far
1231    
1232    checkpoint57y_post
1233    First step for a NLFS adjoint
1234    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1235    o new init. routines for calc_r_star, calc_surf_dr
1236    o still need to deal with ini_masks_etc
1237    o testreport seemed happy
1238    checkpoint57y_pre
1239    
1240    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1241    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1242    o add new offset feature to offline pkg (plus minor cleanup)
1243    o cfc fixes for final year of integration
1244    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1245      be in GCHEM_OPTIONS).
1246    
1247    checkpoint57x_post
1248    o fix testreport Pb in multiple test experiment.
1249    o cleanup our namelist syntax in verification:
1250      - make it more F95 standards compliant (some work still needed)
1251      - allows the vast majority of our tests to work with gfortran
1252    o Non-Hydrostatic:
1253     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1254     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1255    o Allow to apply AB on T,S rather than on AB(gT,gS):
1256     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1257     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1258       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1259     - need a "clever" read_pickup to restart from the other AB formulation
1260    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1261    o remove some unused variables (reduces number of compiler warnings)
1262    o adjoint
1263      * Disable useVariableViscosity for adjoint for time being
1264        (there are a number of extensive recomputations)
1265      * Initialize certain variables needed for adjoint
1266    
1267    checkpoint57w_post
1268    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1269                 fix the singleCpuIO RS version of MDSWRITEFIELD
1270       and add a WARNING if using globalFiles=T with multi-processors.
1271    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1272      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1273    o tracer advection scheme:
1274      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1275       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1276       was not very convenient).
1277      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1278       (further tests needed for the implicit DST & Flux-Limiter schemes).
1279    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1280      and sRef for convenience, handy, when you want to initialize
1281      ptracers in a large domain with a constant non-zero value. Also,
1282      untangle ptracers_init.F a little.
1283    
1284    checkpoint57v_post
1285    o change dome exp. to use variable viscosity in side-drag terms.
1286    o remove all the files from the cfc_offline test since they are now
1287      incorporated into tutorial_cfc_offline which has been producing
1288      identical results for a few days of testing
1289    o add new parameter: sideDragFactor to enable half-slip-side BC
1290      and change side-drag S/R to use viscosity from mom_calc_visc
1291      (can switch back by setting sideDragFactor=0.); affects results at
1292      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1293       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1294    o vorticity & strain are now computed without masking, to account for
1295      no-slip-side BC in variable viscosity calculation ; mask is applied
1296      anyway later on, before computing advection/coriolis terms.
1297    o modify exp4 to test new obcs support for reading from external files
1298      and for passive tracers
1299    o fix behavior of ptracers_monitor when monitor output is written to a
1300      netcdf-file; still not independent of monitor.F (writes in the same
1301      file).
1302    o change default value of tRef (put a uniform, meaningful value for ocean
1303      & atmos) and initialize sRef (was missing, as Martin mentioned).
1304    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1305      to be proportional to enstrophy dissipation length.  Thus,
1306       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1307      This is now consistent with Smagorinsky and with the manual.
1308    
1309    checkpoint57u_post
1310    o OBCS and PTRACERS: add open boundary support for passive tracers
1311      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1312        OB-values from file; this is not different from the way theta and salinity
1313        are treated
1314      - however, Orlanski-radiation conditions are not supported, and the model
1315        will stop if you use pTracers and Orlanski at the same time.
1316      - beefed up the rountine obcs_external_fields_load: now only those open
1317        boundary values are overwritten with values from files for which there
1318        are really files, otherwise the OB-fields remain untouched. This makes
1319        it possible to use different OBs at different ends of the domain (as
1320        with EXF)
1321    o reduce number of exch calls in shap_filt (s2).
1322    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1323      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1324    
1325    checkpoint57t_post
1326    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1327    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1328      same truncation, independent of the face number: affects affects several
1329      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1330    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1331      note that biharmonic viscosity + no-slip was not tested in any experiment.
1332    o fix bug in non-linear free-surf side-drag ; generate new output for
1333      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1334    o make mnc honor the writeBinaryPrec flag for most kinds of output
1335    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1336    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1337      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1338    o add brackets in multi-terms sum to get same truncation, independent of
1339      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1340      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1341    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1342      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1343      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1344      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1345      Suggested values of viscosity parameters found in mom_calc_visc.
1346      Many new viscosity diagnostics available.
1347    
1348    checkpoint57s_post
1349    o Add clearing-house for viscosity calculations, mom_calc_visc and
1350      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1351      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1352      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1353      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1354      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1355      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1356      ViscAhStrain and viscAhTension are now retired.
1357    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1358    o In response to JMC's bug report, genmake2 now ignores any soft-links
1359      that it finds in the *current* directory when searching for files.
1360      Soft-links found in any other source directories will still work as
1361      they did before.
1362    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1363      a C routine to unlimit the stack size
1364    o mnc-ify pkg/aim snapshot vars
1365    o mnc-ify pkg/land as requested by Daniel
1366    o various changes to mnc including:
1367      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1368      - output can now be grouped so that all files within a group
1369          change the ITER portion of their names in lock-step together
1370      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1371          and works with both EXCH1 and EXCH2 (but needs more testing)
1372      - writing works for all verification test cases w/ g77 on Linux
1373    
1374    checkpoint57r_post
1375    o make MNC variable initialization happen earlier
1376    o add diagnostics for (almost) each term of the momentum Eq.
1377    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1378    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1379    o remove MINIMAL_TAVE_OUTPUT option ;
1380      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1381    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1382      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1383    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1384    o add time-dependent SST, SSS control
1385    o cost terms in ecco/ modularized (new cost_generic.F)
1386    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1387    o new infrastructure for seaice model vs. obs misfits in seaice/
1388      * driver from the_main_loop.F is seaice_cost_driver.F
1389      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1390      * gradient check in Exp. 6a of natl_box_adjoint/
1391    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1392      (see README file)
1393    
1394    checkpoint57q_post
1395    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1396    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1397      - bug was reported by Jean-Michel and Ian Fenty
1398    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1399      update exp. cpl_aim+ocn output.
1400    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1401      Needed for high-res. runs with large global files
1402      to be able to limit tapelev size
1403    o Changed some tests for adjoint:
1404      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1405      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1406      * global_ocean.90x40x15/ back to default 3-level checkpointing
1407    o Modifications to enable scripted COMMON to MODULE conversion
1408      * verification/OpenAD/code/ has necessary scripts and description;
1409      * converts, compiles and runs successfully;
1410    
1411    checkpoint57p_post
1412    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1413    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1414      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1415    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1416    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1417      (was already the case for dissipation with mom_vecinv,
1418       and also the case for grad.PhiHyd when staggered-timeStep)
1419      This will allow to put dissipation out-off the AB time-stepping.
1420     Unfortunately, affects truncation error. Update output of exp. that "fails"
1421      (cg2d matching number) and leave the others for later: front_relax(10),
1422      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1423      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1424    
1425    checkpoint57o_post
1426    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1427      (2) its ready to be documented during the 20050801 DocFest
1428    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1429      for ideal_2D_oce and lab_sea on linux_ia32_g77
1430    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1431      in global1x1_tot/code_seaice_adj to access indices 32, 33
1432      (worth another tag)
1433    
1434    checkpoint57n_post
1435    o adding precip control xx_precip 32
1436    o adding swflux control xx_swflux 33
1437    o Replacing 10 forcing penalty cost routines by 1 generic.
1438    o Implementing partitioning in time-mean and variable adjustment
1439      for atmos. state.
1440    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1441    o in natl_box_adjoint:
1442      * updated exp 1 to 10
1443        (but does not have time-mean vs. variable split results yet)
1444    o updated global1x1/*_seaice_adj/
1445      to incorporate latest changes
1446    o enable useSingleCpuIO for mdsio vector routines
1447      (applies in particular to tapelev I/O)
1448    o removed inefficient K-loop in all active_file*control*.F
1449    
1450    checkpoint57m_post
1451    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1452      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1453    o pkg/exch2: filling of face-corner halo regions is optional
1454      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1455    
1456    checkpoint57l_post
1457     tag before updating tutorials (pre-release-2)
1458    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1459       for output and interpolation of input fields onto model grid)
1460    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1461       Affects results of exp. rotating_tank ; update output.txt.
1462    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1463          and taking the square quantity and/or using a fraction-weight field.
1464    o fix aim_diagnostics_init.F mate numbers.
1465    o add mnc output capability to diagnostics/diagstat and update
1466      our cvsignore files for the ACSII output generated
1467    
1468    checkpoint57k_post
1469    o lab_sea now uses diagnostics package and provides a suite of
1470      new EXF diagnostics output.
1471    
1472    checkpoint57j_post
1473    o exf
1474      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1475        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1476        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1477      * extended diagnostics output
1478        - now includes all EXF variables
1479        - hs, hl moved to common block
1480        - separate S/R for diagnostics, called after ctrl vector is added
1481        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1482        - EXFqnet contains true Qnet (i.e. includes qsw)
1483      * updated verif. lab_sea, global_with_exf
1484      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1485        to ensure that diagnostics sees a true EXFqnet
1486    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1487    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1488      several times with different frequencies.
1489    o mnc-ify the thsice package as requested by Daniel Enderton
1490      - the monitor--MNC output needs work
1491      - many attributes need to be added (most are currently blank)
1492    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1493      - many attributes need to be added (most are currently blank)
1494    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1495    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1496    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1497      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1498         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1499    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1500     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1501    
1502    checkpoint57i_post
1503    o Diagnostics package was changed: diagnostic allocation is now deactivated
1504      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1505    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1506      add 1rst Order upwind vertical Shear.
1507    o add a quick fix for A/B checkpointing in OFFLINE mode
1508    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1509      end-run around the C/Fortran linking horror in eesup/src/timers.F
1510    o added pkg/runclock: allows user to terminate run based on wall clock
1511    o added non-hydrostatic scaling parameter: nh_am2
1512    o pkg/my82: futile attempt to make results compiler-independent by adding
1513      some "_d 0", etc. no effect.
1514    o for mnc output, fill the 'T' coordinate var with myTime and create a
1515      separate 'iter' variable for iteration count
1516    o pkg/diagnostics:
1517      add new capability: output of Global/Regional & per-level statistics ;
1518      tested against monitor output (including land & thSIce) on various exp.
1519    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1520    
1521    checkpoint57h_done
1522      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1523      data.diagnostics, data.gchem, data.ptracers) is done.
1524    
1525    o pkg/diagnostics: prepare for Global/Regional statistics.
1526      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1527    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1528      and rename it: DIFFERENT_MULTIPLE
1529    
1530    checkpoint57h_post
1531    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1532    o pkg/diagnostics: change output frequency, now in seconds (instead
1533      of Nb of iterations). This requires to change data.diagnostics.
1534    checkpoint57h_pre
1535    
1536    o in mnc, let the user create the output dir if both mnc_outdir_date
1537      and mnc_outdir_num are false
1538    o add fflags() to pkg/diagnostics which allows one to specify, on a
1539      per-file basis, the file precision [default behavior is unchanged]
1540    o added diagnostics to pkg/kpp, including computation of mixed layer
1541      depth based on a temperature/density criterion
1542    o updated verification/natl_box to test the new pkg/kpp diagnostics
1543    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1544    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1545    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1546      not mnc -- this mistake was found by JMC and is now corrected
1547    
1548    checkpoint57g_post
1549    o add Adams-Bashforth 3rd Order time stepping:
1550      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1551      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1552    checkpoint57g_pre
1553    
1554    o make lambda[Theta,Salt]ClimRelax spatially varying
1555      (default remains spatially uniform constant based on tau)
1556    o added new control variables
1557      * init. uVel, vVel, etanN
1558      * lambda[Theta,Salt]ClimRelax
1559    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1560      (suggested by G. Forget)
1561    
1562    checkpoint57f_post
1563    o add parameter "baseTime" = model base time = time at iteration zero
1564      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1565      account for baseTime shift
1566    o move Coriolis arrays from PARAMS.h to GRID.h
1567    checkpoint57f_pre
1568    
1569    o mnc-ifying the seaice package
1570    o introduced an alternative length scale calculation for use in the limiting
1571      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1572    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1573    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1574      as well as grad(vort3).  Made it compatible with both approximate form
1575      for the cubed sphere and full form of these gradients.  Added flag
1576      useFullLeith to select between approximate and full form.  
1577    o add "d0" in getcon.F to reduce differences between compilers/platforms
1578      update output.txt of exp. fizhi-gridalt-hs
1579    o change port_rand funtion to allow to set the seed.
1580    o fix obscure MNC bug involving conversion between reals and integers
1581      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1582        new version is now more standards-compliant
1583    o adjoint-related modifications
1584      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1585      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1586      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1587    
1588    checkpoint57e_post
1589    o Adding eddy stress controls a la Ferreira et al.
1590    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1591    
1592    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1593      update output.txt of exp. fizhi-gridalt-hs
1594    o add more "Z" dimensions and associated coordinate vars to MNC
1595    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1596    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1597      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1598      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1599      months and years.  Requires pkg/cal.
1600    o diagnostics: add pickup functionality
1601      - off by default for backwards compatibility
1602      - current version only uses MDSIO -- MNC will be added
1603    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1604    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1605    
1606    checkpoint57d_post
1607    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1608    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1609      output from the diagnostics package
1610    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1611    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1612      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1613    o add coordinate variables to the MNC output from the diagnostics package
1614    o change MNC-flags default value: true when useMNC=TRUE
1615    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1616      the ability (off by default) to read the grid information using MNC
1617    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1618    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1619    o do snap-shot diagnostics at the middle of the time-interval (instead of
1620      at the end).
1621    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1622      new test for AIM with thSIce + slab-ocean
1623    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1624    o move state variable diagnostics to the beginning of the time step ;
1625      (note: still needs some work specially for snap-shot diagnostics)
1626      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1627    
1628    checkpoint57c_post
1629    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1630    o generate new output.txt files on faulks with g77 & the new -ieee option
1631    checkpoint57c_pre
1632    
1633    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1634      update output.txt of exp. global_ocean.90x40x15
1635    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1636      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1637    o add saltFlux(+File) forcing capability with periodicExternalForcing
1638    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1639    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1640    o improvements for the MNC output from DIAGNOSTICS:
1641      - correct handling of the unlimitied dimension
1642      - all dims now have associated coordinate variables
1643      - variables located at U, V, and Corner ("Z") points are now written
1644        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1645        *all* data points are output
1646    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1647    o added pkg/seaice/seaice_monitor.F
1648    o mdsio_readfield.F can now read files visible only to master MPI process.
1649    o pkg/seaice: some test code for ice-modified ocean stress
1650    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1651      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1652      spurious negative numbers for precipitation and humidity.  Will cause
1653      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1654    o pkg/ctrl/
1655      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1656        May be enabled via doPackDiag
1657      *  introduce z-scaling of
1658         + gradient (doZscalePack) and
1659         + control (doZscaleUnpack)
1660    o pkg/mdsio/
1661      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1662      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1663    
1664    checkpoint57b_post
1665    o simplify options in diagnostics_fill arguments (remove weird combinations)
1666    o fix MNC coordinate variables so that they now contain per-face index
1667      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1668      general, EXCH2 grids are only aligned to a "local" coordinate system
1669    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1670    o Implement instantaneous output within pkg diagnostics:
1671      setting a negative frequency in data.diagnostics produces
1672     "snap-shot" output (as opposed to time-average if freq > 0)
1673    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1674      NOTE: change ptracer diagnostics name: use 2 characters to work with
1675            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1676    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1677      becomes the coordinate variable for the 'T' dimension
1678    o add CF-style coordinate variables to MNC
1679      - just a first cut:  numbers are meaningless on the cubesphere and
1680        missing along the T axis but otherwise it works!
1681    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1682    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1683    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1684      this is based directly on what the model compute, so that the content of
1685      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1686    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1687    o clean up build options files for SunOS, in particular
1688      - remove -traditional from xmakedepend
1689      - change -xarch=v9 to -xarch=native for f77
1690      - restore use of make (not gmake)
1691      - add CC=gcc if using g77
1692    o changes per discussion of AM, JMC, & EH3 today:
1693      - move redundant "grid" variables out of "state" -- in preparation of
1694        creating proper CF-style coordinate variables and in recognition
1695        that any/all grid variables can be easily copied (eg. w/NCO) from
1696        the grid files into any of the other NetCDF files
1697      - *always* output grid variables with MDSIO (this will eventually be
1698        changed)
1699      - output MNC grid file if useMNC is true
1700    o every instance of _END_MASTER() has been found and replaced with
1701      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1702      preprocessors
1703    o re-arrange diagnostics pkg initialisation:
1704     - allow each package to extend the available diagnostics list
1705     - add some checking and fix small problems (multi-threaded, ...)
1706     - new S/R diagnostics_fill (replace fill_diagnostics):
1707       look through the short list of active diag. (instead of the long list)
1708       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1709    
1710    checkpoint57a_post
1711    o this set of changes restores TAMC compatibility
1712      tested for global_ocean.90x40x15 adjoint on trough
1713      (what a pain)
1714    
1715    checkpoint57a_pre
1716    o some modifs in tools/build_options for sunos
1717    o call ctrl_pack for ctrl at end for optimcycle=0
1718    
1719    checkpoint57
1720    o add horizontal bi-harmonic viscosity for vertical velocity
1721      - new parameter viscA4W (defaults to viscA4)
1722      - affects only non-hydrostatic code
1723      - to be done: no-slip lateral boundary conditions
1724    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1725    o implement Implicit Vertical advection for pTracers
1726    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1727      (implemented also for implicit vertical diffusion & advection)
1728    o OBCS: extend application of tracer open boundary conditions
1729      to a strip beyond the boundary of width Olx/Oly
1730    o add call monitor to TAF set of required calls (flow directives)
1731      and include in natl_box_adjoint
1732    o untangle a few ifdefs related to cost, ctrl, autodiff
1733      untangel a few ALLOW_ECCO_OPTIMIZATION
1734    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1735      (theta2, salt2 in ecco_cost_weights)
1736    
1737    checkpoint56c_post
1738    o OBCS as control variables
1739      - update ctrl_ad_diff.list, obcs_ad_diff.list
1740      - remove balance of obcs controls from default
1741      - fix index bug nobcs in ctrl_init
1742      - fix dummy fields filen in ctrl_pack
1743      - add dummy weights for obcs
1744    o lsopt: comment out fort.94 output
1745    o optim:
1746      - remove unnecessary header files
1747      - adjusted namelists
1748      - add xerbla.F to Makefile
1749    o exf:
1750      - multiple modifications of exf_check_range
1751      - unit change in exf_init_runoff from [m/year] to [m/s]
1752    o mdsio:
1753      - i/o-vector change debugLevel from debLevA to debLevB
1754    
1755    checkpoint56b_post
1756    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1757      is called from DO_THE_MODEL_IO
1758      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1759      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1760      - clean up PTRACERS_WRITE_TIMEAVE a little
1761    o add another verification experiment that tests both the cfc-pkg and
1762      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1763      reactive tendencies treated inline with regular timestepping
1764    o testreport previously did a lousy job of comparing small numbers, so
1765      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1766      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1767      testreport.
1768    o ptracers_monitor: bug fix for MPI
1769    
1770    checkpoint56a_post
1771    o GCHEM: finish reorganizating the package
1772      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1773        (introduces another 3D-array for each passive tracer, but only if
1774        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1775        gchemTendency is not needed because the timestep is done separately)
1776      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1777      - GCHEM is now---more or less cleanly---separate from PTRACERS
1778      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1779        so clear to me how that should be done in a general way.
1780    o CFC: improve formatting of output in CFC_ATMOS
1781    o PTRACERS:
1782      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1783        that ALL experiments with ptracers enable can be checked. This makes
1784        GCHEM_MONITOR obsolete.
1785      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1786        monitorFreq
1787      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1788    o add PTRACERS (PTR0[1-5]) to testreport output
1789    o exf_check_range:
1790      * default changed to .TRUE.
1791      * will check values for niter0 if debLevA, every timestep if debLevB
1792      * STOP in exf_check_range if 'out of range'
1793      * range chosen generous to allow for potential extema
1794      TBD: a version with stricter range
1795           permitted range would be runtime parameters
1796    o GMredi:
1797      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1798      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1799      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1800    o GCHEM:
1801      - move call to GCHEM_FORCING_SEP, so that it is now called before
1802        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1803      - introduced a useGCHEM runtime flag and applied it everywhere.
1804      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1805        this flag is now only visible within GCHEM-pkg routines.
1806      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1807        be replaced by a 3D array that is computed before thermodynamics; for
1808        this, the tracer ID iTracer had to be included into the parameter list
1809        of ptracers_forcing
1810      - set up forward_step to call gchem_forcing, that will replace
1811        gchem_forcing_int in ptracers_forcing
1812      - cleaning up
1813    o small cleaning of exch2: remove files that are also in eesupp/src
1814    
1815    checkpoint56
1816    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1817    o mnc: cleanup "full" files--fixes out-of-memory problem
1818    o ECCO-GODAE
1819      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1820      * fully merged and updated from SIO code
1821        windstress sign change affects
1822        - exf_inscal_[u/v]stress
1823        - sign of xx_tau[u/v] adjustments
1824        - signs in cost_scat
1825      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1826      * natl_box_adjoint updated and compressed
1827      * 2-level checkpoint switch added
1828        (tested in EXP. 1 of natl_box_adjoint)
1829      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1830    o SVD
1831      * first complete, non-hacked version for SVD calculations
1832      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1833        performed via direct access files admtlm_vector.it????
1834        (via ctrl_[un]pack)
1835      * optimcycle is used for ARPACK iteration counter
1836        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1837      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1838        and add linear transforms where necessary
1839      * controls are initial/final SST, SSS (can be extended; need to check
1840        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1841    o mdsio: filename info to both stderr, stdout
1842    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1843      from sign change
1844    
1845    checkpoint55j_post
1846    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1847      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1848    o add consistent build directories and .cvsignore files to verification
1849    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1850    o make all subroutines 30 or less characters in length for certain older
1851      compilers to work (a thorough search only turns up two routines in
1852      pkg/ptracers)
1853    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1854      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1855    
1856    checkpoint55i_post
1857    o change arrays for total vertical diffusivity (2.D if explicit,
1858      3.D if implicit) ; each ptracer uses its own background value.
1859    o added mnc/NetCDF output capability to ocn_compon_interf
1860      - added bits to verification/cpl_aim+ocn so that it can run on
1861        ITRDA and other clusters without the mpirun "-wd" option
1862    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1863      configuration
1864    o give MNC the ability to create additional files rather than
1865      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1866      - the default is just less than 2GB which is a practical limit
1867        on many systems
1868    o Compute the non-local term using either KPP vertical diffusivity (=default)
1869       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1870    
1871    checkpoint55h_post
1872    o add verification test "vermix"
1873    o remove all the *_ioinc flags and replace with the single global
1874      outputTypesInclusive flag
1875    o allow to set a vertical profile of vertical diffusivity for T & S
1876    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1877    o useMNC moved from data.mnc to data.pkg
1878    
1879    checkpoint55g_post
1880    o Renaming carbon AD experiments to comply with testreport conventions
1881    o Updating adjoint of Held-Suarez hs94.1x64x5
1882    o Fixing directives for non-ECCO forward_step, after ECCO directives
1883      have been fixed to avoid recomp. of do_oceanic_phys
1884      Works well for global_ocean.90x40x15,
1885      but recomp. issue remains for carbon
1886    o Updating adjoint output for natl_box_adjoint after
1887      pkg/ecco has been modified (see taga c55d_post)
1888    
1889    checkpoint55f_post
1890    o rename to timeave_init_fixed
1891    
1892    checkpoint55e_post
1893    o some delicate re-shuffle of store directives to avoid one
1894      extra call of do_oceanic_physics
1895      affects ecco_the_main_loop.F, do_oceanic_physics.F
1896      checkpoint_lev1_directives.h
1897    o NB: this may break global_ocean adjoint temporarily,
1898      but it is clear how to fix it. Will do later, need this now.
1899    
1900    checkpoint55d_post
1901    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1902    o ecco_cost_weights is modified to 1x1 runs
1903    o modifs to allow observations to be read in as
1904      single file or yearly files
1905    o enable to read exf forcing fields as either
1906      single file or yearly files (flag useExfYearlyFields)
1907    checkpoint55d_pre
1908    
1909    o switch between 2-level and 3-level checkpointing
1910    o add ability of MNC to write local and "partial" (eg. 2D slices where
1911      the full 3D field is never actually stored) arrays to NetCDF files
1912      with the correct (that is, the complete multi-dimensional) set of
1913      array indicies
1914      - used in mom_vecinv() to write the diagFreq output
1915      - tested (demonstrated) in verification/aim.5l_cs
1916    o further mnc-ification
1917      - add verification/lab_sea to the list with mnc setups
1918      - fix undefined mnc v-names in cd_code
1919      - add kpp to mnc output (both snapshot and timeave)
1920    o non-hydrostatic code
1921      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1922        in calc_gw.F
1923      - defaults to viscAh
1924      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1925        friction or Leith) in non-hydrostatic mode, as long as there is
1926        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1927    o pkg/cost
1928      extend simple cost functions to treat time mean quantities
1929      (T,U,V) via cost_accumulate_state from cost_tile
1930    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1931        be 2 times larger than the minimum size the advection scheme requires.
1932        now get a perfect conservation of salt in advect_cs test-exp (updated)
1933    o GGL90 (Gaspar's TKE mixed layer)
1934      - add horizontal diffusion of TKE, requires exchanges in
1935        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1936        default. In OPA there is no horizontal diffusion of TKE but the
1937        mixing coefficients are computed from a horizontal average of TKE of
1938        6 points or so. I think that diffusion has a little more physical
1939        justification.
1940      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1941        was in vain)
1942      - mask tke-variable in ggl90_init
1943    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1944    o fix biharmonic diffusion on CS-grid.
1945    o more obcs stuff
1946      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1947        for reading boundary values. This routine is called from
1948        obcs_prescribe_read
1949      - updated obcs_check
1950      - changed sponge layer relaxation parameter units for days to seconds
1951      - turned off sponge layer by default
1952      - changed argument list of OBCS_CALC to myTime+deltaTclock
1953      - fixed about 35 bugs in obcs_external_fields_load
1954    
1955    checkpoint55c_post
1956    o obcs stuff
1957      - new runtime flags useOBCSprescribe, useOBCSbalance
1958      - re-arranged obcs_calc
1959      - moved exf_getobcs to obcs_prescibe_read
1960        obcs_prescibe_read is called after ORLANSKI stuff
1961        and independent of it (executable can contain all).
1962      - updated obcs_check
1963      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1964        These may be necessary only if tangential velocities are
1965        prescribed at OB, not sure, needs testing.
1966    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1967      which simplifies the calls and passes the ifc check-bounds test
1968    
1969    checkpoint55b_post
1970    o add a 2D scalar, Z location, exchange_2 routine.
1971    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1972      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1973      affects advect_cs results (for the wrong reason): update output.txt
1974    o use a more standard discretization for biharmonic viscosity ;
1975     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1976      affects results of dome set-up: update output.txt
1977    o fix gad_advection.F (CubedSphere part), back to version 1.23
1978    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1979    
1980    checkpoint55a_post
1981    o merged code to
1982      * prescribe/read time-dependent open boundaries
1983        (works in conjunction with exf, cal)
1984      * sponge layer code for open boundaries
1985      * each boundary N/S/E/W now has its own CPP option
1986        (healthy for the adjoint)
1987    
1988    checkpoint55
1989    o up-to-date adjoint of previous breaks
1990      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1991      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1992      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1993      - carbon: * remove tr1-related adjoint verification
1994                * add ptracer as control variable
1995    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1996      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1997    
1998    checkpoint54f_post
1999    o in verification/carbin/ remove experiment related to
2000      ALLOW_PASSIVE_TRACER (array tr1 etc)
2001      code_ad/ input_ad/ results_ad
2002    
2003    o add two new packages
2004      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2005        + subject to optimization (memory)
2006      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2007        + subject to reordering (many GOTOs in the original code)
2008        + so far opps is called for every (i,j) point, and then operates in
2009          the vertical; one may want to reorder the scheme in order operate in
2010          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2011          fields)
2012    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2013      - all verification tests compile and run with linux_ia32_g77
2014      - defaults are compatible with current input files--nothing
2015        should change if you were not previously using MNC
2016      - MNC output has been added in numerous places (eg. timeave)
2017        but there are still a few writes not yet do-able with MNC
2018        (this is in progress)
2019      - flags now allow for either/or/both use of MDSIO and MNC and
2020        documentation will soon follow
2021      - numerous small formatting cleanups for ProTeX
2022    o add version info (via BUILD_INFO.h) to MNC and stdout
2023    
2024    checkpoint54e_post
2025    o add two new packages
2026      - pp81 (Packanowski and Philander, 1981), Richardson number and
2027        stratification dependent mixing
2028      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2029      - these scheme operate in a similar manner as KPP (without ghat, of
2030        course), however there is only one diffusivity that is used for both
2031        temperature and salinity (and passive tracers)ç
2032    o add offline package
2033    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2034      provided by Stephanie Dutkiewicz
2035    o genmake2: add ability to search for C compilers and cleanup test output
2036      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2037    
2038    checkpoint54d_post
2039    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2040    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2041      leading to additional shift by 5 days each year of integration
2042       (i.e. leading to considerable offset over the years)
2043    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2044    o start with no AB and no initial filtering (staggerTimeStep):
2045      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2046    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2047      (external loading & cpl import/export stay in forward_step.F)
2048    o update coupling interface to work with new staggerTimeStep
2049    o change MDSIO ptracers_pickup.
2050    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2051    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2052    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2053    
2054    checkpoint54c_post
2055    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2056      this affects (truncation error) output.txt of test-exp:
2057       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2058    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2059    o change Qnet to always be the net heat flux, (+upward).
2060      affects (truncation error) output of natl_box exp.: updated
2061    o define the max number of passive tracers in PTRACERS_SIZE.h
2062    o start to test mnc routinely in exp0
2063    o add sea-ice loading (sIceLoad) as a new forcing field.
2064    
2065    checkpoint54b_post
2066    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2067       impressive on Altix and Opteron systems)
2068    o diagnostics can now write NetCDF files through the mnc package
2069    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2070    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2071    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2072      affects (truncation error) output of lab_sea & natl_box exp.: updated
2073    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2074    
2075    checkpoint54a_post
2076    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2077    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2078    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2079    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2080      + internal_wave (shift in writing cg2d_ini_res)
2081    checkpoint54a_pre
2082    
2083    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2084      - modified verification/lab_sea and natl_box_adjoint accordingly
2085    
2086    checkpoint54
2087    checkpoint53g_post
2088    o prepare splitting of thermodynamics: store convect.counter in common block
2089    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2090      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2091    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2092    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2093    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2094    o restore adjointability
2095    
2096    checkpoint53f_post
2097    o modifications that affect AIM experiment results (update output.txt):
2098      - no advection of S at top interface Nr (pkg/generic_advdiff)
2099      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2100    o AIM pkg:
2101      - include stability function into surf.Flux derivative relative to Tsurf
2102      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2103    
2104    checkpoint53e_post
2105    o merged cylindrical coord configuration
2106    o added rotating_tank experiment
2107    checkpoint53e_pre
2108    
2109    checkpoint53d_post
2110    o faulks upgraded: re-generate output.txt that have changed:
2111       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2112    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2113    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2114    o added Sadourny discretization of Coriolis
2115      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2116      - re-enabled use of omega3 (useAbsVorticity)
2117    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2118      vector-invariant equations
2119      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2120    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2121      hopefully without new bugs
2122      - still to do: biharmonic friction for non-hydrostatic w
2123    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2124    o regenerated output for global_ocean_ebm (using -ieee)
2125    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2126      of mom_common/
2127      - simple re-arrangement of instructions within computing loop
2128    checkpoint53d_pre
2129    
2130    checkpoint53c_post
2131    o new version of coupler for AIM+thSIce and Ocean models
2132     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2133     - land: change Evaporation of snow
2134     - aim with thSIce: fix bug in snow-precip.
2135    o changes to calc_gw.F
2136     - bug fix for w^2 term near the bottom boundary
2137     - (hopefully) improve the lateral slip boundary condtions for use with
2138        partial/looped cells
2139      - because the bug fix changes two verification experiments anyway (exp5
2140        and plume on slope), change the lateral boundary condition from half slip
2141        to the value of no_slip_sides
2142    o ebm package wasnt quite up to the parallel task. Fixed that.
2143    o Adjoint of EBM package + verification
2144      * TLM OK
2145      * ADM not sufficient accuracy yet (needs further testing)
2146    
2147    checkpoint53b_post
2148    o Commiting new energy balance model to repository
2149      * package is pkg/ebm
2150      * verif. is verification/global_ocean_ebm
2151      * references are in ebm_driver.F
2152    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2153    C        Global thermohaline circulation. Part I:
2154    C        Sensitivity to atmospheric moisture transport.
2155    C        J. Climate 12(1), 71-82
2156    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2157    C        Global thermohaline circulation. Part II:
2158    C        Sensitivity with interactive transport.
2159    C        J. Climate 12(1), 83-91
2160    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2161    C        Destabilization of the thermohaline circulation
2162    C        by atmospheric eddy transports.
2163    C        J. Climate 7(12), 1870-1882
2164    o Will need long integration testing.
2165    checkpoint53b_pre
2166    
2167    o created pkg/mom_common in preparation for variable viscosity code
2168    o renamed and split ini_mnc_io
2169    o pkg/land: only liquid water can diffuse or run-off
2170    o AIM using land: soil wetness availability account for snow
2171    o added printMapIncludesZeros to EEPARMS namelist
2172    
2173    checkpoint53a_post
2174    o restore TAMC compatiility for exf_constants.h
2175      (no usage of _d in .h)
2176    o Additional storing in KPP in an attempt to fix
2177      TAMC problem with adjoint of KPP code.
2178      (no success...)
2179      Identical code works fine with TAF.
2180    o Fixed verification/natl_box_adjoint experiments.
2181      Initial conditions for Experiments 4 and 5 are now
2182      set to "SEAICE_initialHEFF=0", which is more reasonable,
2183      and hence gives results closer to that of Experiment 2.
2184      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2185    
2186    checkpoint53
2187    o stable checkpoint with up to date adjoint
2188      TLM tests only run for 1st grdchk at the moment. Its unclear if
2189      this is a code problem or a problem with resetting code for g_
2190      variables that is being autogenerated wrong.
2191      Otherwise:
2192       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2193       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2194         are both still in chaos following their security messes.
2195    
2196    checkpoint52n_post
2197    o various build (mostly genmake2) changes including:
2198      - ability to build/run more easily within Cygwin and MacOS X
2199      - more complicated Makefiles with a stronger dependence on Gnu Make
2200    o pkg/seaice modifications
2201      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2202        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2203        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2204      - changed proxy for geostrophic velocity and updated
2205        verification/lab_sea/results/* accordingly
2206      - removed ADI dynamic solver from pkg/seaice
2207      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2208        they caused a segmentation fault under certain circumstances
2209      - removed unused field WATR
2210    o bug fix in exf-package:
2211      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2212         now reflect that.
2213    o small fixes in the cal-package:
2214      - set reference date to first of January for the 'model'-calendar
2215      - failing of cal_CheckDate in cal_FullDate now actually results in a
2216        warning
2217    o small modifications in exf-package to increase flexibility:
2218      - change climtempfreeze from a constant to a runtime parameter that
2219        is specified in data.exf_clim (default = -1.9)
2220      - introduce runtime parameter windstressmax (default = 2.0) that is
2221        specified in data.exf
2222    o fix in pkg/thsice:
2223      - update Evap (Tsf changes) to be consistent with Latent heat flux
2224      - maintain snow precipitation unchanged (even if Tsf >=0).
2225     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2226    
2227    checkpoint52m_post
2228    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2229      this does not change any of the results, because myIter=0 in swfrac always
2230      lead to jwtype=2 (the default anyway), but the call makes little sense
2231      as a default
2232    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2233    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2234      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2235    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2236    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2237    o extending useSingleCpuIO option to work with new exch2 I/O format
2238      - old-style, missing-tile I/O is still accessible by defining CPP
2239        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2240    o monitor package can write to NetCDF files and/or STDOUT
2241    o fix re-definition bug in MNC_GRID_INIT_ALL()
2242    o doc/api_reference added
2243      - a framework for building an API Reference Manual using all
2244        the "protex" comments embedded in the code
2245      - see pkg/generic_advdiff, pkg/mnc for examples
2246    o MNC:
2247      - make myThid the last argument for all subroutines
2248      - new default for the grid files: NO halos
2249      - add useMNC and other run-time flags
2250      - separate per-file-group handling of the unlimited dimension
2251      - early initialization of MNC w/ flags read at the eeboot stage
2252        and lookup tables set in initialize_fixed
2253      - write all MNC output to a freshly-created directory
2254    o thermodynamics sea-ice (thsice) is now tested with testreport.
2255    o test exp. advect_cs: use the standard cs32 grid ; update output.
2256    o Added functionality to grdchk:
2257      pick global i,j,k position (or nearest wet) where to perform check.
2258    
2259    checkpoint52l_post
2260    o new land formulation:
2261      a) use ground enthalpy as prognostic variable to ensure exact
2262         energy conservation.
2263      b) account for water temperature and for latent heat of freezing
2264         in all processes (rain, run-off, ground storage)
2265      c) compute surface and ground temperature implicitly.
2266    o aim_v23 modification for new land model:
2267      a) Treat separately land / ocean / sea-ice surface fluxes
2268         to allow implicit computation of land & sea-ice surface temp.
2269      b) add snow precipitation.
2270    checkpoint52l_pre
2271    
2272    o fix problem (when 1 tile is empty) in min/max monitor.
2273    o fix bug in timeAve (u,vZetatave in common block)
2274    o no restoring terms under ice for pkg/seaice
2275    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2276    o bug fix for pkg/seaice pickups
2277    o change MNC call locations and add coordinate attributes
2278    o mask vorticity at the corner ; affects global_ocean.cs output
2279    o fix ini_curvilinear_grid ; test CS experiments with mpi
2280    o aim.5l_cs: modify sea-ice fraction input file ; update output
2281    o exf: Adding simple range check routine for exf fields after read
2282    
2283    checkpoint52k_post
2284    o removed top-level directory "diags"
2285      - we migrated these functions to pkg/timeave a long time ago
2286    o fixed bug introduced in pkg/monitor
2287    o accuracy ctrlprec = 32 insuffient for gradient checks using
2288      averaged fields (I/O via cost_averages)
2289      -> use ctrl.h in active_file*.F to control I/O precision.
2290    o paramter list of CALL ADTHE_MAIN_LOOP
2291    o added initial do_the_model_io to ecco
2292    o set all ...Freq to zero after cost_final
2293      taveFreq, dumpFreq, pChkptFreq
2294    o MAIN and ECCO differentiability restored
2295    
2296    checkpoint52j_post
2297    o fix nchklev in tamc.h for global_ocean...
2298    o Bringing flow and store directives up-to-date
2299    o Really weird thing!
2300      call do_the_model_io from the_main_loop with parameters
2301      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2302      TAF places a faulty re-call of initialise_varia
2303      after cost_final call which should not be there!
2304    checkpoint52j_pre
2305    
2306    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2307      error messages
2308    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2309    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2310      debug output
2311    o modfied mdsio_writefield.F to handle non-global files under exch2
2312    o update AIM Cubed-Sphere exp (aim.5l_cs):
2313      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2314    o update AIM Equatorial Channel exp:
2315      use standard aim_v23 pkg and change the SST fields to be more realistic.
2316    o globalFile now works with exch2
2317    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2318      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2319    o limit timeave output for hi-res integrations
2320    
2321    checkpoint52i_post
2322    o removed CPP_EEOPTIONS.h from verification/*/code
2323    o updated the tiling for global_ocean_pressure
2324    checkpoint52i_pre
2325    
2326    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2327      the old pkg/aim).
2328    
2329    checkpoint52h_pre
2330    o shortened offending lines in exch2_send_rx?.template
2331    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2332    o genmake2: add build & execute test for NetCDF code
2333    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2334      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2335    o added useSingleCPUIO flag to monitor.F and mon_out.F
2336    o added temporary hack for sea-ice dynamics on the cube:
2337      metric terms are ignored and it is assumed that
2338      there is no sea-ice on cube faces 1, 2, 4, and 5.
2339    
2340    checkpoint52f_post
2341    o added exch2 cube routines to pkg/exch2
2342    o modified hs94.cs-32x32x5 to use it
2343    o added new grid files to hs94.cs-32x32x5
2344    checkpoint52f_pre
2345    
2346    checkpoint52e_post
2347    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2348      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2349    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2350      to work with implicit vertical advection and AB ;
2351    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2352    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2353     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2354    checkpoint52e_pre
2355    
2356    o fix bug in impldiff when Nr=1 or Nr=2.
2357    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2358    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2359    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2360      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2361    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2362    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2363    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2364    
2365    checkpoint52d_post
2366    o re-tiled many expts to allow comparison in multi-processor mode
2367      - updated output accordingly
2368      - changed hs94.128x64x5 to use intial T from file rather than use the
2369        random number generator
2370    o add infrastructure in model routines for fizhi and gridalt packages
2371    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2372    o changes to permit hi-res, cubed-sphere, configuration
2373      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2374      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2375      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2376        of surface winds for the cube
2377      (A verification experiment, based on global_ocean.cs32x15, but with
2378       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2379       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2380       complete with example surface forcing files and matlab scripts to look
2381       at the output and compare it with that of global_ocean.cs32x15.)
2382    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2383       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2384       to conform to the common rule.
2385    o check-in the first version of the coupler + interfaces for multi-components
2386       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2387       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2388       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2389       - ocean and atmos. share the same horizontal grid (no interpolation).
2390       - exchanges between component and coupler is done in forward_step
2391    o new verification experiment, cpl_aim+ocn:
2392       coupled ocean - AIM atmosphere on cs32 grid.
2393    
2394    checkpoint52d_pre
2395    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2396    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2397    
2398    checkpoint52c_post
2399    o Fixing OPTIONS files for use of exf:
2400      - ALLOW_ECCO not needed
2401      - ECCO_CPPOPTIONS.h should not be included from
2402        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2403        as has been the case in the past
2404      - All cal/exf related options are currently set in
2405        single header file. Should remain so until we
2406        agree on a consistent new policy.
2407    o Removed all CPP options for cal package.
2408      cal has no more CPP options.
2409    o modified STOREs in GAD_ADVECTION
2410    o corrected key comp. for passkey
2411    
2412    checkpoint52b_post
2413    o new version: "thsice" of thermodynamic sea-ice pkg:
2414     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2415     - modify fluxes but do not change theta directly;
2416     - light cleaning of bulk_force pkg (still needed with thsice).
2417     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2418       + output_thsice.txt to test thsice & bulk_force pkgs.
2419    o put back grid & coriolis monitor output.
2420    checkpoint52b_pre
2421    
2422    o call "do_the_model_io" at the beginning (=> dump initial state)
2423    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2424    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2425      (need info on NUMBER_OF_PTRACERS)
2426    o missing PTRACERS headers in some routines
2427    o default tamc.h in pkg/autodiff supposed to crash
2428      to ensure proper customization
2429    
2430    checkpoint52a_post
2431    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2432      - moved surfaceTendencyTice from pkg/seaice to main code
2433      - subroutine FREEZE_SURFACE now limits only surface temperature
2434        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2435        => new output.txt for global_ocean.cs32x15 & global_with_exf
2436      - keep the old version of FREEZE for backward compatibility;
2437        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2438      - corresponding modifs for TAF directives
2439    o added surface flux output variables to TIMEAVE_STATVARS
2440    o time-averaged output for pkg/ptracers
2441    o fix problem with ECCO-related divided adjoint
2442      snapshot file was missing some ad-variables,
2443      but no warning issued by TAF
2444    
2445    checkpoint52a_pre
2446    o some bug fixes for #undef REAL4_IS_SLOW
2447    
2448    checkpoint52 = ecco_c52_e35
2449    o after testing adjoints of checkpoint51u_post
2450    
2451    checkpoint51u_post
2452    o this is the post-merge tag of the ecco-branch
2453      (needs another clean checkout and re-testing)
2454    o various natl_box_adjoint configs and results
2455      but no input fields
2456    o obcs adjoint not yet merged!
2457    o adding ECCO global 1x1 and 2x2 degree configs
2458    o updated/extended some store directives for seaice
2459    o pkg/ecco now containes ecco-specific part of cost function
2460    o top level routines the_main_loop, forward_step
2461      supersede those in model/src/
2462      previous input data.cost now in data.ecco
2463      (new namelist ecco_cost_nml)
2464    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2465    
2466    checkpoint51t_post
2467    o this is the pre-merge tag of the ecco-branch
2468    
2469    checkpoint51s_post
2470    o cleanup: removed various obsolete #define-s
2471    o pkg/grdchk
2472      - renamed 'ph-grd 3' to 'grad-res'
2473      - merged from ecco-branch
2474        (remaining bug fixes for obcs gradient checks)
2475      - additional high-precision output for testreport
2476        (grep for 'precision_grdchk_result')
2477    
2478    checkpoint51r_post
2479    o cleaned up or removed CPP_OPTIONS.h files
2480    o updated results for some of the tests to reflect the new
2481      optfiles (-ieee: -O0 instead of -O3)
2482    
2483    checkpoint51q_post
2484    o cd_code:
2485      - moved cd_scheme.F -> cd_code_scheme.F
2486      - separate read_checkpoint from cd_code_ini_vars.F
2487      - separated cd_code part from write_checkpoint
2488      - updated AD_SOURCE, generated .flow
2489      - added CD_CODE_VARS.h to the_main_loop
2490      - Moving cd_code specific store dir.s to pkg/cd_code
2491    o ctrl package totally restructured
2492      - pack/unpack now optional and decoupled from
2493        xx_/adxx_ I/O
2494      - ctrl_pack/unpack cleaned
2495        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2496      - confined inclusion of AD_CONFIG.h to where necessary.
2497    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2498    
2499    checkpoint51p_post
2500  o create initial cd_code package  o create initial cd_code package
2501      - WARNING: the initialization of fields within packages
2502        is broken because INI_FIELDS (where READ_CHECKPOINT is
2503        called) is called *before* PACKAGES_INIT_VARIABLES.
2504        This seems to be backwards since
2505        1) its important to initially zero the entire field including
2506           the "halo" region
2507        2) zeroing needs to be done *before* reading pickup info
2508           and the pickup call might or might not happen in any
2509           particular run
2510      - this needs an overhaul for R2
2511  o cleanup verification/*/code/GMREDI_OPTIONS.h  o cleanup verification/*/code/GMREDI_OPTIONS.h
2512  o cleanup testreport  o cleanup testreport
2513    

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