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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.846 by dimitri, Fri Jun 22 06:41:09 2007 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 gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
8      scheme and the corresponding test case (under front_relax dir). For now,
9      only available with Skew-flux form and not yet tested in realistic set-up.
10    o seaice adjoint
11      * add AREA, HEFF, HSNOW as control variable
12        (should not change lab_sea results)
13      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
14    o pkg/seaice: added computation of saltFlux in seaice_growth;
15       For time being, sea ice salinity is assumed constant
16       contribution of snow flooding to freshening of sea ice is neglected.
17       SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
18       defaults to 0.0 in order to maintain backward compatibility.
19       Typical values for SEAICE_salinity are 4 to 10 g/kg.
20    
21    checkpoint59d
22    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
23     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
24     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
25    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
26     and change default value of parameter "GM_Small_Number";
27     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
28       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
29       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
30    o pkg/ecco: cost function when applying pkg/smooth to controls
31    o pkg/ctrl: add forcingPrecond run time parameter
32    o pkg/seaice:
33     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
34     - fix bug in metric terms of u-equation in LSR solver (implicit part),
35       changes verification/lab_sea
36     - rearrange implicit part of u-equation in LSR solver to make it easier to
37       read, understand, and debug. This causes changes at the truncation level.
38     - fix (serious) bug in the boundary conditions (sign error in the implicit
39       part) of the LSR solver. Changes all LSR results.
40     - fixed problem with HSNOW initialization to avoid thick snow when AREA
41       is initilized with small values - does not change lab_sea results.
42     - added HsnowFile initialization capability
43    o pkg/smooth: addition to model/src and pkg/ctrl so allow
44     initialization of pkg/smooth and application to control vector
45    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
46    o dependencies: pkg/profiles requires pkg/cal
47    o pkg/profiles:
48     - added option ALLOW_PROFILES_GENERICGRID
49         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
50         that interpolation information (grid points and coefficients) is provided
51         within the netcdf input files.
52         -> sample matlab scripts can be found in MITgcm_contrib/gael
53         that allow you to prepare netcdf input files.
54     - also modified: cleaner include statements, cleaner error print statements,
55       cleaner stops when error, and more tests of the netcdf input files consistency.
56    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
57    o pkg/seaice:
58     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
59       requires a new routine: seaice_diagnostics_fill.F
60     - make sure that seaice does not move if not forced (pressure replacement
61       method, Hibler and Ip, 1995), changes results
62     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
63     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
64       It is turned off by default (=-1.), because it changes the results.
65     - make it possible to read AREA from a file, too.
66    
67    checkpoint59c
68    o add S/R and diagnostics for oceanic mixed-layer depth
69    o move GMRedi call after all vertical mixing schemes (including KPP)
70    o pkg/thsice:
71     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
72      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
73    o pkg/obcs:
74     - bug fix for balance code
75    o pkg/seaice:
76      - allow values of SEAICE_elasticParm > 1
77      - add new parameter SEAICE_evpTauRelax as an alternative
78        to SEAICE_elasticParm
79      - make lsr boundary conditions free slip (by default), changes result
80      - add code for no slip boundary conditions for lsr
81      - set minimum of zeta to zero (and not 4e8) (changes results)
82      - add a cap on AREA after advecting AREA if seaice_growth is not called
83    o change calculation of Visbeck K:
84      - no longer depend on tapering scheme; instead, compute slope (limited
85        by GM_maxSlope). this is equivalent to what was comuted before with
86        clipping or linear tappering.
87      - fix vertical averaging (wrong by 1/2 level)
88      - leave the old version (but will not be maintained) within
89        #ifdef OLD_VISBECK_CALC / #endif
90      - update output of exp. ideal_2D_oce
91    o change error catch in calc_r_star to improve vectorization
92    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
93      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
94    o adjoint:
95      Re-organized adjoint checkpointing according to Matt Mazloff
96      (but with modifs/completions/cleanups)
97      Storing is now bundled into large arrays to optimized I/O
98      (and second step in cleanup of the_main_loop)
99    
100    checkpoint59b
101    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
102      - export/import (between ocean & coupler) fields needed for ocean DIC.
103    o pkg/seaice:
104      - get rid of three more exchanges seaice_calc_viscosities (required
105        different loop boundaries in seaice_lsr and seaice_ocean_stress)
106      - bug fix in seaice_ocean_stress (update of lab_sea required)
107      - reduce loop boundaries to necessary minimum also in seaice_evp
108      - go back to the old way of computing deltaC/Z as the adjoint likes that
109        better
110    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
111      passive tracer to an Age Tracer) + update output.txt
112    o pkg/exf:
113      - implement A-grid / C-grid selection for wind-stress input files.
114      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
115      for now, in exf_bulk_largeyeager04.F only :
116      - change implementation for case where windspeed + 2. components wind-stress
117        are read-in. AND use rhoConstFresh to convert evap.
118    o pkg/seaice:
119      - use correct EXCH_UV for wind-forcing (on A-grid).
120      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
121        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
122    o pkg/exf:
123      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
124      EXF_INTERPOLATION:
125      - merge global_with_exf/code version of exf_interp_read.F
126        to the main code ;
127      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
128        reading the file ; Important: This options needs to be defined to recover
129        previous code.
130        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
131      - no longer loose real*8 precision along the way when using exf_iprec=64.
132    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
133      - change discretisation of evp-solver in order to avoid another exchange
134        (changes lab_sea) and clean up a little
135      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
136        help the adjoint (this also changes the results slightly)
137      - add a few "_d 0" where they had been missing in seaice_evp.F
138      - cleaning up: remove unused seaice_calc_rhs.F
139    o pkg/exf: some cleaning-up:
140      - change various "constants" into runtime parameters
141      - cleaned-up Large&Yeager04 routine which should eventually
142        replace exf_bulkformulae.F (changed names of S/R and CPP)
143        and merged various ALLOW_ATM_WIND options
144     only used with thsice pkg (in thsice_get_exf.F):
145      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
146        which are used when useStabilityFct_overIce=TRUE (= the default)
147      - change default values of ice & snow emissivity and scale downward LW
148        by ice & snow emissivity.
149    o pkg/thsice:
150     fix few little problems, in thsice_calc_thickn.F:
151      - growth vertically (and not laterally) if iceFrac == iceMaskMax
152      - melt only laterally if hIce < hThinIce (as the comments say)
153      and in thsice_extend.F:
154      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
155      - start to form ice as soon as the minimum ice-volume is reachable.
156     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
157      and cpl_aim+ocn
158    o pkg/kpp
159     - move computation of surface related input fields to KPP into a new
160       subroutine kpp_forcing_surf.F
161     - remove wrong (within bi,bj loops) EXCH calls.
162     - little cleaning (add argument myThid in last position, cvs header ...)
163     - for now, fix conservation problem by exchanging KPPviscAz (may not
164       be the best fix)
165    o pkg/seaice
166     - check for inconsistent evp parameter/cpp-flag combination
167     - remove leftover errIO flat for obsolete name list error handling
168    o OpenAD
169     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
170    
171    checkpoint59a
172    o pkg/seaice: some parameter clarifications and a little bit of clean up
173    o pkg/thsice: rename run-time parameters:
174       himin       -> hIceMin
175       himin0      -> hThinIce
176       hihig       -> hThickIce
177       i0          -> i0swFrac
178       transCoef   -> bMeltCoef
179       frac_energy -> fracMelting
180      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
181       with default values (for now) that do not change the results.
182      remove old version of thsice vars advection in pkg/seaice.
183    o in FFIELDS.h:
184      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
185      - make pLoad & sIceLoad always available (but still only used if
186         ATMOSPHERIC_LOADING is #define).
187    o pkg/kpp: replaced _KPP_RL with _RL
188    o bug fixes for vertical diffusivity computations when both KPP and
189        3D diffusivity arrays are used.
190    o pkg/seaice: fix bug in evp solver, while doing that
191      - change (improve?) discretization of stress computations for both
192        cgrid-lsr and evp solver
193      - add a new routine to compute strain rates
194      - the above changes lab_sea results
195      - add no slip conditions for evp solver (off by default), lsr-version
196        may follow
197      - fix exchange for shear at Z-points (does not change lab_sea)
198      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
199        (to force the user to pick a time step since there is not "safe" way
200        of choosing it)
201      - add principal stress diagnostics
202      - rearrange fields for evp a little to avoid having to call a: too many
203        exchanges and b: exchanges for stress trensor components which we do
204        not have.
205      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
206        of evp, complete rewrite for lsr case (latter is does not yet work
207        in all cases)
208    o pkg/kpp: add code to have mixing in shelf ice caverns
209      - add myThid to all kpp routines (long overdue)
210    
211    checkpoint59
212    o pkg/exf:
213      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
214        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
215      - move exf header files from lower_case.h to UPPER_CASE.h ;
216        add missing cvs Header & Name
217      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
218      - add namelist param. selectStressGridPosition, exf_monFreq
219      - retire many _CLIM routines, and remove data.exf_clim
220        + params moved to data.exf
221        + climsst, climsss now handled by exf_set_gen, i.e.
222          climss?period=0 refers to constant field,
223          climss?period=-12 to monthly forcing
224      - split up namelists in data.exf
225    o pkg/seaice:
226      - remove seaice_exch and seaice_exch_uv
227      - remove superfluous exchange of theta
228      - add myThid to seaice_budget_ocean/ice
229      - add new interface for atmospheric wind forcing (C-grid only)
230        + new routine
231        + two new field (taux, tauy for stress over ice)
232        + removed one global field (DAIRN) for C-grid case only
233    o pkg/thsise
234      - 2nd set of modifs for thsice adjoint in conjunction with exf
235    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
236    
237    checkpoint58y_post
238    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
239      vertical diffusivity, similar to that in MOM4; turned on using
240      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
241      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
242    o Added capability for 3D specification of background vertical diffusion
243      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
244      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
245      "data" file that contains the 3D vertical diffusivity coefficients.
246    o ice dynamics (pkg/seaice) with thsice thermodynamics:
247      - add code within pkg thsice to advect & diffuse sea-ice fields
248      similar to (and will replace) what has been added in  seaice_advdiff.F,
249      but: - conserving Mass, Heat & Salt.
250           - better when using non-linear advection scheme (not yet fully tested)
251           - can also be used in atmospheric set-up (for now, only the diffusion).
252    
253    checkpoint58x_post
254    o IO option for global-file compact format:
255      - add options when generating topology (utils/exch2/matlab-topology-generator)
256      - add I/O capability (pkg/mdsio).
257      - adapt utils/matlab/rdmds.m to read this format.
258      for now long-line format not yet supported by pkg/mdsio (& exch2).
259    o shelfice: add a few diagnostics
260    
261    checkpoint58w_post
262    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
263      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
264      (and replace horiVertRatio in NH code).
265      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
266                         and tutorial_plume_on_slope (sensitive to truncation)
267    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
268      directly to drive seaice model (C-grid only)
269    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
270     - reintroduce computation of wind from stress,
271     - compute tau (in exf_bulkformulae.F) from windstress averaged to
272       mass points to avoid tau = 0
273     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
274    o rdmnc.m: make it work with "global" files created with gluemnc
275    o rdmnc.m : some improvements in dealing with singleton dimension
276      (tested on all testreport mnc output files).
277    o genmake2: disable pkg/profiles if netcdf test fails.
278    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
279    o move call to cal_readparms up to make calendar parameters/variable available
280      to all packages
281    
282    checkpoint58v_post
283    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
284      useDynP_inEos_Zc tested.
285    o pkg/exf: changes to properly interpolate/mask/scale initial fields
286    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
287      and portions thereof.  See read_cs.txt for description and examples.
288    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
289      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
290      following the great-circle arc between those 2 points.
291    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
292      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
293    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
294     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
295     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
296     - still needs work (not working with some options ; efficiency to improve)
297       and serious testing.
298     - use this scheme for temperature & salinity in 2 advection test exp.:
299       advect_xy & advect_xz, respectively.
300    
301    checkpoint58u_post
302    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
303    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
304    o testreport: add option "-skipdir" to skip some test.
305    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
306      momentum calculation.
307    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
308    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
309      remove checkpoint.F and the_correction_step.F (no longer used);
310      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
311    o add option (linFSConserveTr) to correct for tracer source/sink due to
312      Linear Free surface
313    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
314    o pkg/thsice: fix reading mnc-pickups
315    
316    checkpoint58t_post
317    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
318    o pkg/mdsio:
319     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
320       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
321       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
322     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
323     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
324       either MDS_READ_FIELD or MDS_WRITE_FIELD )
325     - new S/R (to replace MDSWRITEMETA), which allows to write more
326       informations (variable names, time ...) to meta files.
327     - modify rdmds.m to give back the meta file content.
328    o pkg/diagnostics: change vertical interpolation to be safer, and more
329       flexible (define p-levels to interpolate to in data.diagnostics);
330      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
331       diagnostic pointer.
332    o pkg/seaice: more cleaning up of seaice_growth, added many comments
333    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
334    o fix multi-category seaice:
335     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
336       SEAICE_MULTICATEGORY
337     - fix short wave heat flux
338    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
339       and allow to use EVP solver. Change forward lab_sea: test both EVP
340       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
341    o Initial check-in of lab_sea adjoint
342      (very similar to natl_box_adjoint/code_seaice)
343      * used C-grid and EVP solver
344      * used KPP, GM/Redi
345      * uses inAdExact=.TRUE.
346      * gradient checks fail for both ADM and TLM
347        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
348        f.d. gradients actually seem more problematic than ADM, TLM gradients;
349        issue is related to forward mismatch between g77 an ifort
350    o pkg/seaice: overhaul of thermodynamics
351     - growth.F and groatb.F are replaced by new routine seaice_growth.F
352     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
353     - move a few global fields out of SEAICE.h into seaice_growth.F and
354       make them 2D (FICE/QNETO/ ...)
355     - remove FO (it is the same as QNETO)
356     - introduce a few local fields to avoid modifying external fields such
357       as atemp, etc.
358    
359    checkpoint58s_post
360    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
361      changed exf_set_gen.F so that
362        genperiod=0 means input file is one time-constant field and
363        genperiod=-12 means input file contains 12 monthly means
364    o CG2D: use pre-computed solver main-diagonal (stored in common block);
365      this affects truncation error ; generate new output file for exp. which
366      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
367        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
368        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
369        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
370        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
371        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
372    o start implementation of deep-atmosphere and anelastic formulation
373    o verification: remove 2nd copy of input files and use script "prepare_run"
374      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
375    o mom_common/vecinv/fluxform: fix a few initialisation isssues
376    o profiles: fix for multithreaded case
377    
378    o diagnostics: rename few diags:
379      s/'PRESSURE'/'RCENTER '/g
380      s/'TICE    '/'oceFreez'/g
381      s/'TAUX    '/'oceTAUX '/g
382      s/'TAUY    '/'oceTAUY '/g
383      s/'SWFLUX  '/'oceQsw  '/g
384      s/DIFx/DFxE/g
385      s/DIFy/DFyE/g
386      and add few ocean-forcing diagnostics:
387      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
388    o modifications to pkg/seaice/growth.F and budget.F, which change results of
389      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
390      as actual snow thickness.  It now refers everywhere to effective snow
391      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
392    
393    checkpoint58r_post
394    o modifications to pkg/seaice/growth.F, which change results of
395      lab_sea experiment: fixes pertain to melting snow over open water, to
396      masking EVAP under sea ice, and to using the correct AREA variable for
397      computations of EVAP, PRECIP, HSNOW, and GHEFF
398    o add ability to read bathy, salt, and theta using MNC (off by def)
399    o add flooding algorithm and advection of HSNOW for pkg/seaice;
400      both are turned off by default and do no change any results
401    o seaice advection with pkg/thsice: a step toward the use of non-linear
402      advection scheme, but #ifdef or commented out for now (requires more EXCH).
403    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
404      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
405      in natl_box (affects results @ truncation level: update output.txt)
406    o multi-threading and IO:
407      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
408      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
409        (needed to work with SingleCpuIO): tested in all verif. exp.
410    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
411      affects the results (but none of the verification test uses this scheme).
412    o Adding some pkg/diagnostics capability to pkg/seaice
413      (will certainly be subject to changes)
414    o ctrl: adding new control variables:
415      lwflux, lwdown, evap, snowprecip, apressure, runoff
416    
417    checkpoint58q_post
418    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
419      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
420      high_res_cube configuration by 4% on Columbia.
421    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
422      add (in global_with_exf/code) a version of EXF_INTERP_READ without
423      dynamical allocation (seems to work in multi-threaded).
424    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
425      single CPU io) so that TAF does not have to see EESUPPORT.h
426    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
427    
428    checkpoint58p_post
429    o obcs: stop if obcs is used with useCDscheme = .true.
430    o shelfice:
431     - fix a sign error so that no slip at shelfice interface works
432     - remove stop for combination non-hydrostatic code and shelfice. That does
433       not mean, that the results are correct, but at least they are numerically
434       stable
435    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
436    o added adjoint exch routined for all exch*3d* routines
437      and updated flow directives
438    
439    checkpoint58o_post
440    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
441      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
442    o change controling S/R for writing pickup file (new S/R do_write_pickup)
443      and clean-up reading/writing of pickup files.
444    o fix local version of read/write pickup (NH part) in rotating_tank/code
445    o simplify EXCH interface:
446     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
447     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
448    o added the regrid package
449    o shelfice:
450     - add a simple boundary layer scheme to reduce noise
451     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
452    
453    checkpoint58n_post
454    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
455       local variable (not in common block).
456    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
457      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
458      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
459        to work with SingleCpuIO.
460    o add "_d 0" to real constant of pkg/cfc subroutines ;
461       update exp. cfc_exemple & tutorial_cfc_offline output files.
462    o multi-threading and IO:
463      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
464        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
465      - barrier before and after reading.
466      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
467      - avoid using MDS_WRITELOCAL for LAND pkg output.
468      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
469        common-block variables ; Allows multi-threading with master-thread IO.
470    o change default MAX_NO_THREADS from 32 to 4 ;
471      and stop cleanly when MAX_NO_THREADS is too small.
472    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
473    
474    checkpoint58m_post
475    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
476       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
477    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
478       keep global_ocean.90x40x15 (for AD testing) with former secondary test
479       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
480    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
481        add MITgcm_tutorials (= code + all the tutorials)
482    o ecco, option to compute cost for total ssh (mean+anom)
483    o consistent with addition of ptracer and ssh in pkg/profiles
484    o profiles: adding ptracer and ssh
485    o testreport: change multi-test output-file name
486      (from output.txt.{name} to output.{name}.txt)
487    o profiles: now ok for mutli-tiles case
488    o seaice: add 4 parameters for different advection schemes for area,
489      (effective) seaice thickness, enthalphy, and snow height. Their default
490      is the standard parameter SEAICEadvScheme
491    o calc_gw:
492     - add cosFacU in zonal viscous flux (harmonic.visc.).
493     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
494       of tutorial_plume_on_slope.
495    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
496    o calc_gw: true flux-form, account for horizontal grid spacing.
497      update rotating_tank results, but not plume_on_slope (affected at
498      truncation level, 11 digits).
499    
500    checkpoint58l_post
501    o calc_gw:
502     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
503     - remove side-drag for now (need to fix it); update plume_on_slope results.
504     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
505    o commit code to make SST/SSS weights spatially variable
506      (based on either variable in-situ or variable initial T/S weights)
507    o pkg/ecco:
508      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
509        now based on horizontally varying weights wthetaLev, wsaltLev
510      * cost_averagesflags now returns year indices in addition to day, month
511      * sflux balance is performed on annual basis
512        (sflxumm, sfluxmm2, bal_sfluxmm)
513      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
514        including separate counting and multipliers
515    o pkg/rbcs
516      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
517    
518    checkpoint58k_post
519    o testreport:
520     - always build in dir. "build" (if not there, mkdir build instead of building
521       & running in input)
522     - run in dir run (if it exists), in build otherwise.
523     - call prepare_run (if input/prepare_run exists)
524     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
525    o pkg/exf modifications to interpolation and rotation routines for more
526       reasonable treatment of North Pole singularity: for tracers North Pole
527       value is set to northernmost zonal-mean value, for zonal velocity it is
528       set to zero, and for meridional velocity it is set to northernmost value.
529    o pkg/exf/exf_check_range.F
530     - add tile index to diagnostics and move stop statement to the very
531       end of the routine.
532    o pkg/diagnostics: (diagnostics_main_init.F)
533      define title of isomorphic variables according to the current config.
534    o pkg/thsice with pkg/seaice dynamics:
535    - fix domain of computation (interior only, required for exf) and do exchanges
536    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
537    o towards a standard way of dealing with multi-threading in MONITOR
538      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
539    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
540       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
541    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
542    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
543    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
544       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
545    o tracer advection:
546     - clean-up and simplify calc_common_factors.F
547     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
548       advection subroutine (but still not used within DST advection S/R)
549    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
550    
551    checkpoint58j_post
552    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
553      from file (collects calls previously in FORWARD_STEP)
554    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
555    o adjoint store dir. adjusted accordingly
556    o genmake2
557      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
558    
559    checkpoint58i_post
560    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
561      on wind stress (SEAICEstressFactor defaults to 1.)
562    o Total number of Timers is finite (<=40): comment out 2 non-essential one
563      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
564    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
565      on CS-grid: no longer loosing mass.
566    o exf & curvilinear-grid: no longer modify longitude xC & xG.
567    o pkg/ggl90: fix sloppy output and fix a bug
568    o pkg/seaice: added SEAICEuseEVPpickup parameter
569      - Set to false in order to start EVP solver with
570        non-EVP pickup files when using SEAICEuseEVP
571      - fix sign error in diffusion in seaice_calc_rhs
572    
573    checkpoint58h_post
574    * Modifications for bottom topography control
575      o replace hFacC by _hFacC at various places
576      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
577      o add non-self-adjoint cg2d_nsa
578      o update autodiff support routines
579      o re-initialise hfac after ctrl_depth_ini
580      o works for 5x5 box, doesnt work for global_ocean.90x40x15
581    * Adding verification for 5x5 box (4-layer) bottom topography control
582    
583    checkpoint58g_post
584    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
585       used for mean seasonal cycle, mean diurnal cycle); add an example
586       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
587    o pkg/ggl90:
588      - add parameter (minimum surface kinetic energy)
589      - fix bug (avoiding division by zero)
590    o couple pkg/thsice to pkg/seaice:
591      - modify advection in seaice to accomodate new scalar fields to be advected
592      - only muliDimAdection scheme work with seaice/thsice
593      - mapping of thsice-variables to seaice-variables, back and forth
594      - does not break the verification experiments, but does not give the
595        desired results either
596    o pkg/seaice
597      - make (default) second order advection a bit less confusing?
598    
599    checkpoint58f_post
600    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
601      to pkg/seaice):
602      - new routines thsice_map_exf and thsice_get_exf provide the interface
603      - add an additional formal parameter to thsice_solve4temp
604    o pkg/exf:
605      - add new fields wspeed, snowprecip (to be able to couple to thsice)
606      - correct Stefan-Boltzmann constant
607      - new parameter for longwave surface emittance
608      - separate some stuff from exf_bulkformulae into new routines  
609        exf_radiation, exf_wind
610      - add new parameters and constants: longwave emissivity for ocean, ice
611        and snow, evaporation parameters over ice
612      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
613        either wind from stress or stress from wind
614    o pkg/thSIce:
615    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
616    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
617       and THSICE_CALC_THICKN
618    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
619    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
620      to make debugging easier.
621    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
622    o pkg/bulk_force:
623      - clean-up comments and parameters ;
624      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
625    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
626      generate new output for test-experiment: aim.5l_cs.thSI
627    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
628      testreport accordingly
629    
630    checkpoint58e_post
631    o SEAICE_CGRID adjoint done
632    o R_STAR adjoint implemented.
633      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
634      * need to sort out init. of h0facc, etc.
635    o Make pkg/profile fully independent of ecco,cost, etc. stuff
636      to be able to use it in pure forward.
637    
638    checkpoint58d_post
639    o upgrade simple test-experiment to tutorial example:
640     step.1: duplicate the experiment and (step.2) will remove the old copy.
641      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
642      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
643      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
644      tutorial_global_oce_biogeo    <- copy of dic_example
645      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
646      tutorial_plume_on_slope       <- copy of plume_on_slope
647      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
648      tutorial_global_oce_optim     <- empty for now (David ?)
649      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
650     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
651    o correct a sign problem in cost_scat.F
652    o obcs and ptracers: fix boundary conditions for advections schemes
653      with larger stencil
654    o thsice adjoint: start
655    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
656      completeness
657    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
658      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
659    o ptracers adjoint:
660      * avoid extensive recomputatations
661      * fix missing re-init. of gptr (missed by TAF)
662    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
663      me to turn off the excessive output to STDOUT that this package produces
664    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
665      and add those terms in Vector-Invariant formulation.
666    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
667      if the control period (xx_hfluxperiod etc) is 0
668    o in profiles pkg, clean routines and fix details
669    o in ecco pkg, reading ssh data:
670      fix problem in case the model does not start at iter0=0
671    o fix mnc-pickup/restart for ptracers
672    o new package prifiles:
673      code to compute profile-based cost by Gael Forget
674      (modifs in ecco, ctrl, autodiff)
675    o Benign bug fix in initialization (spotted by M. Mazloff) of
676      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
677    
678    checkpoint58c_post
679    o adjoint: finish NLFS adjoint and provide reference output in
680      verification/global_ocean.90x40x15/results_ad_nlfs
681    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
682      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
683      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
684      with SEAICE_CGRID defined.
685    o move calendarDumps from "data" to "data.cal" and clean-up the code
686      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
687    o add useEXF & useCAL flags (for now, set in hard-coded way)
688    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
689      (were missing in NH mode, and wrong in quasihydrostatic mode).
690      waiting for Chris updated version of calc_gw to add those CALLs.
691    o fix bug in quasihydrostatic S/R ;
692      add a test for this option: global_ocean.90x40x15.qshyd
693    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
694      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
695    o add on/off flag useOffLine for package OFFLINE
696    o seaice:
697      - modify advection so that it works also on the C-grid
698      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
699        problem in multi-tile runs with C-grid
700      - add flags for clipping ice velocities and/or masking solver forcing
701      - fix drag (ocean on ice) formulation and a bug that caused noise in the
702        C-grid solver
703      - added a few comments to seaice_diffusion.F
704      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
705        are now exclusive)
706      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
707        required re-ordering the code a little:
708       + make DAIRN global variable (defined in SEAICE)
709       + move computation of the viscosities eta and zeta into a new separate
710         routine (because I need to recompute them in seaice_ocean_stress.F)
711    
712    checkpoint58b_post
713    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
714      update output.txt of exp. aim.5l_cs.thSI
715    o various mnc cleanups and improvements:
716      + shrink lookup tables by factor of ~4
717      + better error reporting when running out of lookup space
718      + able to handle longer path/file names (up to 500 chars)
719    o adjoint:
720      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
721      - TBD: "hidden" mom_vecinv recomp. in dynamics
722    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
723     (allow to differentiate between forcing components using new integer flags:
724      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
725     and add new flag to put Dissipation tendency out of Adams-Bashforth.
726    o ecco
727      - enable trend removal from SSH anomaly obs.
728    o adjoint
729      - a fix for PmEpR when #undef EXACT_CONSERV
730      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
731      - try to fix "hidden" recomp. in forward_step for NLFS
732        (NLFS seems broken sometimes after I checked it in)
733    o seaice:
734     - add c-grid version of the dynamic solver:
735       + three new routines that are the c-grid substitute lsr, dynsolver
736         and ostres
737       + put a few fields that were local to dynsolver into global common
738         blocks, so that I can move the computation of stresses etc into
739         seaice_lsr (saves coding but may break the adjoint).
740     - replace more hardwired parameters by runtime parameters
741     - add ice masks that mask the rhs of the implicit solvers where there
742       is no ice (commented out in seaice_dynsolver, because i am not sure
743       if this works properly), eventually this should replace the clipping
744       of ice velocities in seaice_dynsolver to +/-40cm/s.
745    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
746      include it only where its needed
747    o move balancing of fluxes before the call of external_forcing_surf
748    o seaice:
749      - correct units of turning angles (now they are really in degrees)
750      - move computation of GWATX/Y out of main routine into dynsolver
751      - initialize GWATX/Y in seaice_init
752    o Apply mask on Fresh-Water flux (needed for SSH forcing).
753      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
754    o seaice: add runtime flags for turning angles (default to zero)
755    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
756      and trend from exf forcing and ctrl control adjustments
757    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
758      (since checkpoint57x_post)
759    o change the default rotation period to 86164.s = the Earth rotation
760    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
761      and based on a reference stratification. Tested within hs94.cs-32x32x5.
762    o seaice advection: add code for choosing between the default (2nd order
763      central differences) and multiDim advection schemes provided by
764      pkg/generic_advdiff
765    o seaice:
766      - removed all references to SEAICE_GRID.h fields from
767        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
768        (cubed-sphere configuration will change a little)
769      - grid computations in seaice_init are obsolete now.
770      - cleaned up code a little so that is easier to read (hopefully).
771      - added new (better?) discretizations of default advection and diffusion
772        (turn on with SEAICEuseFluxForm)
773      - replace 1 in 3d global fields by kSurface in growth.F
774      
775    checkpoint58a_post
776    o seaice:
777      - bug fix in advect.F
778    o shelfice:
779      - separate shelfice load anomaly from pload (breaks with time
780        dependent forcing), => introduce constant field shelficeLoadAnomaly.
781        Its default is 0., but it may be computed more cleverly from (unknown)
782        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
783        done offline. A good approximation of the pressure load anomaly is
784        necessary to avoid large initial adjustment processes underneath
785        deep-reaching shelfice.
786      - small fix in ISOMIP shelfice_thermodynamics
787      - add more sophisticated thermodynamics of Hellmer (1989), this is
788        now the default
789      - give a few constants more intuitive names
790    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
791      if bulk formulae are used in long integration (especially EmPmR). Turn
792      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
793      if balancePrintMean, the imbalance that is substracted is printed to
794      STDOUT.
795    o fix bug (typo) in obcs_apply_eta.F
796    o add a new package shelfice which enables us to model the circulation
797      underneath shelf-ice with draughts of hundreds of meters.
798     - works
799     - to do: + include improved thermodynamics
800              + check whether kSurfC (from model/inc/SURFACE.h) can be used
801                instead of new field kTopC
802              + can we use topoFile, Ro_surf and existing code in ini_depth.F
803                instead of new field R_shelfIce and new code in ini_depth.F
804                and ini_mask_etc.F?
805              + adjust vertical mixing schemes?
806    o seaice pkg:
807     - add a cpp-flag to include a simple formula for a salinity dependent
808       freezing point of sea water at the surface
809     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
810       meridional stresses are now different (and hopefully correct)
811    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
812       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
813       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
814    o pkg/diagnostics: add options and parameters for regional-statistics
815       diagnostics ; define regions by reading a region-mask from a file
816       (might add other options later)
817    o pkg/bulk_force:
818     - add option and parameters to use AIM surface-flux formulae.
819     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
820       others forcing fields (defined in PARM05, parameter file "data") are loaded
821       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
822     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
823     - use the right EXCH call for uwind,vwind (to work on CS-grid).
824     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
825       and parameters (note: calcWindStress replaces .NOT.readwindstress).
826     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
827    
828    checkpoint58
829    o add "--embed-source" option to genmake2 which, when the supporting
830      tools can be compiled (as determined by genmake2) will turn on the
831      embed_files package which then embeds the entire MITgcm source code
832      (*.[fFhc] + Makefile) used for the build within the executable
833      - requested by CNH but off by default
834      - adds a paltry <9MB to the mitgcmuv executable in most cases
835      - only writes the output when useEMBEDSRC in eedata is true
836    o clean up 3-dim. relaxation codes:
837      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
838      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
839      * Thanks to Tom Haine for testing!
840    
841    checkpoint57z_post
842    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
843      affects output (@ truncation level) of exp. plume_on_slope ; updated.
844    o fix the pickup behavior for obcs in combination with ptracers
845    o fix a bug in ptracers_external_fields_load
846    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
847      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
848    o transfered surface NH pressure to eta field (if exactConserv).
849    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
850         and update lab_sea output.txt file.
851    o completing 3-dim. relaxation code: additional term
852         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
853      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
854      * At compile time, in "EXF_OPTIONS.h" set
855          #define  ALLOW_CLIMTEMP_RELAXATION
856          #define  ALLOW_CLIMSALT_RELAXATION
857      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
858          tauThetaClimRelax3Dim = 15552000.0,
859          tauSaltClimRelax3Dim  = 15552000.0,
860      * 3 cases:
861          1) Use a constant-in-time 3-dim. field
862          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
863          3) Real-time relax. to time-evolving prescribed field
864    o Adding Laplacian-type smoothness constraint on
865      initial and boundary (forcing) controls (ic, bc)
866      * enable at compile-time via
867        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
868      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
869      * Absolute scale somewhat unclear so far
870      * no area weighting was included since no other cost term does so far
871    
872    checkpoint57y_post
873    First step for a NLFS adjoint
874    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
875    o new init. routines for calc_r_star, calc_surf_dr
876    o still need to deal with ini_masks_etc
877    o testreport seemed happy
878    checkpoint57y_pre
879    
880    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
881    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
882    o add new offset feature to offline pkg (plus minor cleanup)
883    o cfc fixes for final year of integration
884    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
885      be in GCHEM_OPTIONS).
886    
887    checkpoint57x_post
888    o fix testreport Pb in multiple test experiment.
889    o cleanup our namelist syntax in verification:
890      - make it more F95 standards compliant (some work still needed)
891      - allows the vast majority of our tests to work with gfortran
892    o Non-Hydrostatic:
893     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
894     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
895    o Allow to apply AB on T,S rather than on AB(gT,gS):
896     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
897     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
898       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
899     - need a "clever" read_pickup to restart from the other AB formulation
900    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
901    o remove some unused variables (reduces number of compiler warnings)
902    o adjoint
903      * Disable useVariableViscosity for adjoint for time being
904        (there are a number of extensive recomputations)
905      * Initialize certain variables needed for adjoint
906    
907    checkpoint57w_post
908    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
909                 fix the singleCpuIO RS version of MDSWRITEFIELD
910       and add a WARNING if using globalFiles=T with multi-processors.
911    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
912      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
913    o tracer advection scheme:
914      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
915       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
916       was not very convenient).
917      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
918       (further tests needed for the implicit DST & Flux-Limiter schemes).
919    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
920      and sRef for convenience, handy, when you want to initialize
921      ptracers in a large domain with a constant non-zero value. Also,
922      untangle ptracers_init.F a little.
923    
924    checkpoint57v_post
925    o change dome exp. to use variable viscosity in side-drag terms.
926    o remove all the files from the cfc_offline test since they are now
927      incorporated into tutorial_cfc_offline which has been producing
928      identical results for a few days of testing
929    o add new parameter: sideDragFactor to enable half-slip-side BC
930      and change side-drag S/R to use viscosity from mom_calc_visc
931      (can switch back by setting sideDragFactor=0.); affects results at
932      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
933       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
934    o vorticity & strain are now computed without masking, to account for
935      no-slip-side BC in variable viscosity calculation ; mask is applied
936      anyway later on, before computing advection/coriolis terms.
937    o modify exp4 to test new obcs support for reading from external files
938      and for passive tracers
939    o fix behavior of ptracers_monitor when monitor output is written to a
940      netcdf-file; still not independent of monitor.F (writes in the same
941      file).
942    o change default value of tRef (put a uniform, meaningful value for ocean
943      & atmos) and initialize sRef (was missing, as Martin mentioned).
944    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
945      to be proportional to enstrophy dissipation length.  Thus,
946       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
947      This is now consistent with Smagorinsky and with the manual.
948    
949    checkpoint57u_post
950    o OBCS and PTRACERS: add open boundary support for passive tracers
951      - either use homogenous (pseudo) v.Neumann conditions or prescribe
952        OB-values from file; this is not different from the way theta and salinity
953        are treated
954      - however, Orlanski-radiation conditions are not supported, and the model
955        will stop if you use pTracers and Orlanski at the same time.
956      - beefed up the rountine obcs_external_fields_load: now only those open
957        boundary values are overwritten with values from files for which there
958        are really files, otherwise the OB-fields remain untouched. This makes
959        it possible to use different OBs at different ends of the domain (as
960        with EXF)
961    o reduce number of exch calls in shap_filt (s2).
962    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
963      truncation level) 4/5 MLAdjust test results (11&12 digits match).
964    
965    checkpoint57t_post
966    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
967    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
968      same truncation, independent of the face number: affects affects several
969      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
970    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
971      note that biharmonic viscosity + no-slip was not tested in any experiment.
972    o fix bug in non-linear free-surf side-drag ; generate new output for
973      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
974    o make mnc honor the writeBinaryPrec flag for most kinds of output
975    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
976    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
977      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
978    o add brackets in multi-terms sum to get same truncation, independent of
979      the face number (manage to get exactly same value of gU,gV at the cs-edge)
980      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
981    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
982      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
983      a maximum grid-scale Reynolds number.  Also, changes all length calculations
984      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
985      Suggested values of viscosity parameters found in mom_calc_visc.
986      Many new viscosity diagnostics available.
987    
988    checkpoint57s_post
989    o Add clearing-house for viscosity calculations, mom_calc_visc and
990      correct numerous bugs in LeithD and Smagorinsky discretizations.  
991      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
992      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
993      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
994      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
995      The Strain-Tension form is now called with useStrainTensonVisc=.true.
996      ViscAhStrain and viscAhTension are now retired.
997    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
998    o In response to JMC's bug report, genmake2 now ignores any soft-links
999      that it finds in the *current* directory when searching for files.
1000      Soft-links found in any other source directories will still work as
1001      they did before.
1002    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1003      a C routine to unlimit the stack size
1004    o mnc-ify pkg/aim snapshot vars
1005    o mnc-ify pkg/land as requested by Daniel
1006    o various changes to mnc including:
1007      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1008      - output can now be grouped so that all files within a group
1009          change the ITER portion of their names in lock-step together
1010      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1011          and works with both EXCH1 and EXCH2 (but needs more testing)
1012      - writing works for all verification test cases w/ g77 on Linux
1013    
1014    checkpoint57r_post
1015    o make MNC variable initialization happen earlier
1016    o add diagnostics for (almost) each term of the momentum Eq.
1017    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1018    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1019    o remove MINIMAL_TAVE_OUTPUT option ;
1020      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1021    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1022      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1023    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1024    o add time-dependent SST, SSS control
1025    o cost terms in ecco/ modularized (new cost_generic.F)
1026    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1027    o new infrastructure for seaice model vs. obs misfits in seaice/
1028      * driver from the_main_loop.F is seaice_cost_driver.F
1029      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1030      * gradient check in Exp. 6a of natl_box_adjoint/
1031    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1032      (see README file)
1033    
1034    checkpoint57q_post
1035    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1036    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1037      - bug was reported by Jean-Michel and Ian Fenty
1038    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1039      update exp. cpl_aim+ocn output.
1040    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1041      Needed for high-res. runs with large global files
1042      to be able to limit tapelev size
1043    o Changed some tests for adjoint:
1044      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1045      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1046      * global_ocean.90x40x15/ back to default 3-level checkpointing
1047    o Modifications to enable scripted COMMON to MODULE conversion
1048      * verification/OpenAD/code/ has necessary scripts and description;
1049      * converts, compiles and runs successfully;
1050    
1051    checkpoint57p_post
1052    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1053    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1054      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1055    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1056    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1057      (was already the case for dissipation with mom_vecinv,
1058       and also the case for grad.PhiHyd when staggered-timeStep)
1059      This will allow to put dissipation out-off the AB time-stepping.
1060     Unfortunately, affects truncation error. Update output of exp. that "fails"
1061      (cg2d matching number) and leave the others for later: front_relax(10),
1062      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1063      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1064    
1065    checkpoint57o_post
1066    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1067      (2) its ready to be documented during the 20050801 DocFest
1068    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1069      for ideal_2D_oce and lab_sea on linux_ia32_g77
1070    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1071      in global1x1_tot/code_seaice_adj to access indices 32, 33
1072      (worth another tag)
1073    
1074    checkpoint57n_post
1075    o adding precip control xx_precip 32
1076    o adding swflux control xx_swflux 33
1077    o Replacing 10 forcing penalty cost routines by 1 generic.
1078    o Implementing partitioning in time-mean and variable adjustment
1079      for atmos. state.
1080    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1081    o in natl_box_adjoint:
1082      * updated exp 1 to 10
1083        (but does not have time-mean vs. variable split results yet)
1084    o updated global1x1/*_seaice_adj/
1085      to incorporate latest changes
1086    o enable useSingleCpuIO for mdsio vector routines
1087      (applies in particular to tapelev I/O)
1088    o removed inefficient K-loop in all active_file*control*.F
1089    
1090    checkpoint57m_post
1091    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1092      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1093    o pkg/exch2: filling of face-corner halo regions is optional
1094      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1095    
1096    checkpoint57l_post
1097     tag before updating tutorials (pre-release-2)
1098    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1099       for output and interpolation of input fields onto model grid)
1100    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1101       Affects results of exp. rotating_tank ; update output.txt.
1102    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1103          and taking the square quantity and/or using a fraction-weight field.
1104    o fix aim_diagnostics_init.F mate numbers.
1105    o add mnc output capability to diagnostics/diagstat and update
1106      our cvsignore files for the ACSII output generated
1107    
1108    checkpoint57k_post
1109    o lab_sea now uses diagnostics package and provides a suite of
1110      new EXF diagnostics output.
1111    
1112    checkpoint57j_post
1113    o exf
1114      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1115        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1116        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1117      * extended diagnostics output
1118        - now includes all EXF variables
1119        - hs, hl moved to common block
1120        - separate S/R for diagnostics, called after ctrl vector is added
1121        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1122        - EXFqnet contains true Qnet (i.e. includes qsw)
1123      * updated verif. lab_sea, global_with_exf
1124      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1125        to ensure that diagnostics sees a true EXFqnet
1126    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1127    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1128      several times with different frequencies.
1129    o mnc-ify the thsice package as requested by Daniel Enderton
1130      - the monitor--MNC output needs work
1131      - many attributes need to be added (most are currently blank)
1132    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1133      - many attributes need to be added (most are currently blank)
1134    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1135    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1136    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1137      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1138         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1139    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1140     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1141    
1142    checkpoint57i_post
1143    o Diagnostics package was changed: diagnostic allocation is now deactivated
1144      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1145    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1146      add 1rst Order upwind vertical Shear.
1147    o add a quick fix for A/B checkpointing in OFFLINE mode
1148    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1149      end-run around the C/Fortran linking horror in eesup/src/timers.F
1150    o added pkg/runclock: allows user to terminate run based on wall clock
1151    o added non-hydrostatic scaling parameter: nh_am2
1152    o pkg/my82: futile attempt to make results compiler-independent by adding
1153      some "_d 0", etc. no effect.
1154    o for mnc output, fill the 'T' coordinate var with myTime and create a
1155      separate 'iter' variable for iteration count
1156    o pkg/diagnostics:
1157      add new capability: output of Global/Regional & per-level statistics ;
1158      tested against monitor output (including land & thSIce) on various exp.
1159    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1160    
1161    checkpoint57h_done
1162      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1163      data.diagnostics, data.gchem, data.ptracers) is done.
1164    
1165    o pkg/diagnostics: prepare for Global/Regional statistics.
1166      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1167    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1168      and rename it: DIFFERENT_MULTIPLE
1169    
1170    checkpoint57h_post
1171    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1172    o pkg/diagnostics: change output frequency, now in seconds (instead
1173      of Nb of iterations). This requires to change data.diagnostics.
1174    checkpoint57h_pre
1175    
1176    o in mnc, let the user create the output dir if both mnc_outdir_date
1177      and mnc_outdir_num are false
1178    o add fflags() to pkg/diagnostics which allows one to specify, on a
1179      per-file basis, the file precision [default behavior is unchanged]
1180    o added diagnostics to pkg/kpp, including computation of mixed layer
1181      depth based on a temperature/density criterion
1182    o updated verification/natl_box to test the new pkg/kpp diagnostics
1183    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1184    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1185    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1186      not mnc -- this mistake was found by JMC and is now corrected
1187    
1188    checkpoint57g_post
1189    o add Adams-Bashforth 3rd Order time stepping:
1190      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1191      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1192    checkpoint57g_pre
1193    
1194    o make lambda[Theta,Salt]ClimRelax spatially varying
1195      (default remains spatially uniform constant based on tau)
1196    o added new control variables
1197      * init. uVel, vVel, etanN
1198      * lambda[Theta,Salt]ClimRelax
1199    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1200      (suggested by G. Forget)
1201    
1202    checkpoint57f_post
1203    o add parameter "baseTime" = model base time = time at iteration zero
1204      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1205      account for baseTime shift
1206    o move Coriolis arrays from PARAMS.h to GRID.h
1207    checkpoint57f_pre
1208    
1209    o mnc-ifying the seaice package
1210    o introduced an alternative length scale calculation for use in the limiting
1211      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1212    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1213    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1214      as well as grad(vort3).  Made it compatible with both approximate form
1215      for the cubed sphere and full form of these gradients.  Added flag
1216      useFullLeith to select between approximate and full form.  
1217    o add "d0" in getcon.F to reduce differences between compilers/platforms
1218      update output.txt of exp. fizhi-gridalt-hs
1219    o change port_rand funtion to allow to set the seed.
1220    o fix obscure MNC bug involving conversion between reals and integers
1221      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1222        new version is now more standards-compliant
1223    o adjoint-related modifications
1224      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1225      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1226      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1227    
1228    checkpoint57e_post
1229    o Adding eddy stress controls a la Ferreira et al.
1230    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1231    
1232    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1233      update output.txt of exp. fizhi-gridalt-hs
1234    o add more "Z" dimensions and associated coordinate vars to MNC
1235    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1236    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1237      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1238      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1239      months and years.  Requires pkg/cal.
1240    o diagnostics: add pickup functionality
1241      - off by default for backwards compatibility
1242      - current version only uses MDSIO -- MNC will be added
1243    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1244    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1245    
1246    checkpoint57d_post
1247    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1248    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1249      output from the diagnostics package
1250    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1251    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1252      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1253    o add coordinate variables to the MNC output from the diagnostics package
1254    o change MNC-flags default value: true when useMNC=TRUE
1255    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1256      the ability (off by default) to read the grid information using MNC
1257    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1258    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1259    o do snap-shot diagnostics at the middle of the time-interval (instead of
1260      at the end).
1261    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1262      new test for AIM with thSIce + slab-ocean
1263    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1264    o move state variable diagnostics to the beginning of the time step ;
1265      (note: still needs some work specially for snap-shot diagnostics)
1266      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1267    
1268    checkpoint57c_post
1269    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1270    o generate new output.txt files on faulks with g77 & the new -ieee option
1271    checkpoint57c_pre
1272    
1273    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1274      update output.txt of exp. global_ocean.90x40x15
1275    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1276      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1277    o add saltFlux(+File) forcing capability with periodicExternalForcing
1278    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1279    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1280    o improvements for the MNC output from DIAGNOSTICS:
1281      - correct handling of the unlimitied dimension
1282      - all dims now have associated coordinate variables
1283      - variables located at U, V, and Corner ("Z") points are now written
1284        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1285        *all* data points are output
1286    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1287    o added pkg/seaice/seaice_monitor.F
1288    o mdsio_readfield.F can now read files visible only to master MPI process.
1289    o pkg/seaice: some test code for ice-modified ocean stress
1290    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1291      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1292      spurious negative numbers for precipitation and humidity.  Will cause
1293      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1294    o pkg/ctrl/
1295      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1296        May be enabled via doPackDiag
1297      *  introduce z-scaling of
1298         + gradient (doZscalePack) and
1299         + control (doZscaleUnpack)
1300    o pkg/mdsio/
1301      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1302      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1303    
1304    checkpoint57b_post
1305    o simplify options in diagnostics_fill arguments (remove weird combinations)
1306    o fix MNC coordinate variables so that they now contain per-face index
1307      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1308      general, EXCH2 grids are only aligned to a "local" coordinate system
1309    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1310    o Implement instantaneous output within pkg diagnostics:
1311      setting a negative frequency in data.diagnostics produces
1312     "snap-shot" output (as opposed to time-average if freq > 0)
1313    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1314      NOTE: change ptracer diagnostics name: use 2 characters to work with
1315            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1316    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1317      becomes the coordinate variable for the 'T' dimension
1318    o add CF-style coordinate variables to MNC
1319      - just a first cut:  numbers are meaningless on the cubesphere and
1320        missing along the T axis but otherwise it works!
1321    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1322    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1323    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1324      this is based directly on what the model compute, so that the content of
1325      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1326    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1327    o clean up build options files for SunOS, in particular
1328      - remove -traditional from xmakedepend
1329      - change -xarch=v9 to -xarch=native for f77
1330      - restore use of make (not gmake)
1331      - add CC=gcc if using g77
1332    o changes per discussion of AM, JMC, & EH3 today:
1333      - move redundant "grid" variables out of "state" -- in preparation of
1334        creating proper CF-style coordinate variables and in recognition
1335        that any/all grid variables can be easily copied (eg. w/NCO) from
1336        the grid files into any of the other NetCDF files
1337      - *always* output grid variables with MDSIO (this will eventually be
1338        changed)
1339      - output MNC grid file if useMNC is true
1340    o every instance of _END_MASTER() has been found and replaced with
1341      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1342      preprocessors
1343    o re-arrange diagnostics pkg initialisation:
1344     - allow each package to extend the available diagnostics list
1345     - add some checking and fix small problems (multi-threaded, ...)
1346     - new S/R diagnostics_fill (replace fill_diagnostics):
1347       look through the short list of active diag. (instead of the long list)
1348       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1349    
1350    checkpoint57a_post
1351    o this set of changes restores TAMC compatibility
1352      tested for global_ocean.90x40x15 adjoint on trough
1353      (what a pain)
1354    
1355    checkpoint57a_pre
1356    o some modifs in tools/build_options for sunos
1357    o call ctrl_pack for ctrl at end for optimcycle=0
1358    
1359    checkpoint57
1360    o add horizontal bi-harmonic viscosity for vertical velocity
1361      - new parameter viscA4W (defaults to viscA4)
1362      - affects only non-hydrostatic code
1363      - to be done: no-slip lateral boundary conditions
1364    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1365    o implement Implicit Vertical advection for pTracers
1366    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1367      (implemented also for implicit vertical diffusion & advection)
1368    o OBCS: extend application of tracer open boundary conditions
1369      to a strip beyond the boundary of width Olx/Oly
1370    o add call monitor to TAF set of required calls (flow directives)
1371      and include in natl_box_adjoint
1372    o untangle a few ifdefs related to cost, ctrl, autodiff
1373      untangel a few ALLOW_ECCO_OPTIMIZATION
1374    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1375      (theta2, salt2 in ecco_cost_weights)
1376    
1377    checkpoint56c_post
1378    o OBCS as control variables
1379      - update ctrl_ad_diff.list, obcs_ad_diff.list
1380      - remove balance of obcs controls from default
1381      - fix index bug nobcs in ctrl_init
1382      - fix dummy fields filen in ctrl_pack
1383      - add dummy weights for obcs
1384    o lsopt: comment out fort.94 output
1385    o optim:
1386      - remove unnecessary header files
1387      - adjusted namelists
1388      - add xerbla.F to Makefile
1389    o exf:
1390      - multiple modifications of exf_check_range
1391      - unit change in exf_init_runoff from [m/year] to [m/s]
1392    o mdsio:
1393      - i/o-vector change debugLevel from debLevA to debLevB
1394    
1395    checkpoint56b_post
1396    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1397      is called from DO_THE_MODEL_IO
1398      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1399      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1400      - clean up PTRACERS_WRITE_TIMEAVE a little
1401    o add another verification experiment that tests both the cfc-pkg and
1402      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1403      reactive tendencies treated inline with regular timestepping
1404    o testreport previously did a lousy job of comparing small numbers, so
1405      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1406      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1407      testreport.
1408    o ptracers_monitor: bug fix for MPI
1409    
1410    checkpoint56a_post
1411    o GCHEM: finish reorganizating the package
1412      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1413        (introduces another 3D-array for each passive tracer, but only if
1414        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1415        gchemTendency is not needed because the timestep is done separately)
1416      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1417      - GCHEM is now---more or less cleanly---separate from PTRACERS
1418      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1419        so clear to me how that should be done in a general way.
1420    o CFC: improve formatting of output in CFC_ATMOS
1421    o PTRACERS:
1422      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1423        that ALL experiments with ptracers enable can be checked. This makes
1424        GCHEM_MONITOR obsolete.
1425      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1426        monitorFreq
1427      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1428    o add PTRACERS (PTR0[1-5]) to testreport output
1429    o exf_check_range:
1430      * default changed to .TRUE.
1431      * will check values for niter0 if debLevA, every timestep if debLevB
1432      * STOP in exf_check_range if 'out of range'
1433      * range chosen generous to allow for potential extema
1434      TBD: a version with stricter range
1435           permitted range would be runtime parameters
1436  o GMredi:  o GMredi:
1437    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1438    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 1441  o GCHEM:
1441    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
1442      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1443    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1444      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1445        this flag is now only visible within GCHEM-pkg routines.
1446      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1447        be replaced by a 3D array that is computed before thermodynamics; for
1448        this, the tracer ID iTracer had to be included into the parameter list
1449        of ptracers_forcing
1450      - set up forward_step to call gchem_forcing, that will replace
1451        gchem_forcing_int in ptracers_forcing
1452      - cleaning up
1453  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
1454    
1455  checkpoint56  checkpoint56

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