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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.841 by gforget, Wed Jun 20 19:39:04 2007 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  o adding precip control xx_precip  o pkg/ecco: cost function when applying pkg/smooth to controls
8  o moved ptracer ctrl index 17 -> 32  o pkg/ctrl: add forcingPrecond run time parameter
9    o pkg/seaice:
10     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
11     - fix bug in metric terms of u-equation in LSR solver (implicit part),
12       changes verification/lab_sea
13     - rearrange implicit part of u-equation in LSR solver to make it easier to
14       read, understand, and debug. This causes changes at the truncation level.
15     - fix (serious) bug in the boundary conditions (sign error in the implicit
16       part) of the LSR solver. Changes all LSR results.
17     - fixed problem with HSNOW initialization to avoid thick snow when AREA
18       is initilized with small values - does not change lab_sea results.
19     - added HsnowFile initialization capability
20    o pkg/smooth: addition to model/src and pkg/ctrl so allow
21     initialization of pkg/smooth and application to control vector
22    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
23    o dependencies: pkg/profiles requires pkg/cal
24    o pkg/profiles:
25     - added option ALLOW_PROFILES_GENERICGRID
26         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
27         that interpolation information (grid points and coefficients) is provided
28         within the netcdf input files.
29         -> sample matlab scripts can be found in MITgcm_contrib/gael
30         that allow you to prepare netcdf input files.
31     - also modified: cleaner include statements, cleaner error print statements,
32       cleaner stops when error, and more tests of the netcdf input files consistency.
33    
34    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
35    o pkg/seaice:
36     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
37       requires a new routine: seaice_diagnostics_fill.F
38     - make sure that seaice does not move if not forced (pressure replacement
39       method, Hibler and Ip, 1995), changes results
40     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
41     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
42       It is turned off by default (=-1.), because it changes the results.
43     - make it possible to read AREA from a file, too.
44    
45    checkpoint59c
46    o add S/R and diagnostics for oceanic mixed-layer depth
47    o move GMRedi call after all vertical mixing schemes (including KPP)
48    o pkg/thsice:
49     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
50      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
51    o pkg/obcs:
52     - bug fix for balance code
53    o pkg/seaice:
54      - allow values of SEAICE_elasticParm > 1
55      - add new parameter SEAICE_evpTauRelax as an alternative
56        to SEAICE_elasticParm
57      - make lsr boundary conditions free slip (by default), changes result
58      - add code for no slip boundary conditions for lsr
59      - set minimum of zeta to zero (and not 4e8) (changes results)
60      - add a cap on AREA after advecting AREA if seaice_growth is not called
61    o change calculation of Visbeck K:
62      - no longer depend on tapering scheme; instead, compute slope (limited
63        by GM_maxSlope). this is equivalent to what was comuted before with
64        clipping or linear tappering.
65      - fix vertical averaging (wrong by 1/2 level)
66      - leave the old version (but will not be maintained) within
67        #ifdef OLD_VISBECK_CALC / #endif
68      - update output of exp. ideal_2D_oce
69    o change error catch in calc_r_star to improve vectorization
70    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
71      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
72    o adjoint:
73      Re-organized adjoint checkpointing according to Matt Mazloff
74      (but with modifs/completions/cleanups)
75      Storing is now bundled into large arrays to optimized I/O
76      (and second step in cleanup of the_main_loop)
77    
78    checkpoint59b
79    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
80      - export/import (between ocean & coupler) fields needed for ocean DIC.
81    o pkg/seaice:
82      - get rid of three more exchanges seaice_calc_viscosities (required
83        different loop boundaries in seaice_lsr and seaice_ocean_stress)
84      - bug fix in seaice_ocean_stress (update of lab_sea required)
85      - reduce loop boundaries to necessary minimum also in seaice_evp
86      - go back to the old way of computing deltaC/Z as the adjoint likes that
87        better
88    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
89      passive tracer to an Age Tracer) + update output.txt
90    o pkg/exf:
91      - implement A-grid / C-grid selection for wind-stress input files.
92      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
93      for now, in exf_bulk_largeyeager04.F only :
94      - change implementation for case where windspeed + 2. components wind-stress
95        are read-in. AND use rhoConstFresh to convert evap.
96    o pkg/seaice:
97      - use correct EXCH_UV for wind-forcing (on A-grid).
98      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
99        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
100    o pkg/exf:
101      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
102      EXF_INTERPOLATION:
103      - merge global_with_exf/code version of exf_interp_read.F
104        to the main code ;
105      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
106        reading the file ; Important: This options needs to be defined to recover
107        previous code.
108        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
109      - no longer loose real*8 precision along the way when using exf_iprec=64.
110    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
111      - change discretisation of evp-solver in order to avoid another exchange
112        (changes lab_sea) and clean up a little
113      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
114        help the adjoint (this also changes the results slightly)
115      - add a few "_d 0" where they had been missing in seaice_evp.F
116      - cleaning up: remove unused seaice_calc_rhs.F
117    o pkg/exf: some cleaning-up:
118      - change various "constants" into runtime parameters
119      - cleaned-up Large&Yeager04 routine which should eventually
120        replace exf_bulkformulae.F (changed names of S/R and CPP)
121        and merged various ALLOW_ATM_WIND options
122     only used with thsice pkg (in thsice_get_exf.F):
123      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
124        which are used when useStabilityFct_overIce=TRUE (= the default)
125      - change default values of ice & snow emissivity and scale downward LW
126        by ice & snow emissivity.
127    o pkg/thsice:
128     fix few little problems, in thsice_calc_thickn.F:
129      - growth vertically (and not laterally) if iceFrac == iceMaskMax
130      - melt only laterally if hIce < hThinIce (as the comments say)
131      and in thsice_extend.F:
132      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
133      - start to form ice as soon as the minimum ice-volume is reachable.
134     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
135      and cpl_aim+ocn
136    o pkg/kpp
137     - move computation of surface related input fields to KPP into a new
138       subroutine kpp_forcing_surf.F
139     - remove wrong (within bi,bj loops) EXCH calls.
140     - little cleaning (add argument myThid in last position, cvs header ...)
141     - for now, fix conservation problem by exchanging KPPviscAz (may not
142       be the best fix)
143    o pkg/seaice
144     - check for inconsistent evp parameter/cpp-flag combination
145     - remove leftover errIO flat for obsolete name list error handling
146    o OpenAD
147     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
148    
149    checkpoint59a
150    o pkg/seaice: some parameter clarifications and a little bit of clean up
151    o pkg/thsice: rename run-time parameters:
152       himin       -> hIceMin
153       himin0      -> hThinIce
154       hihig       -> hThickIce
155       i0          -> i0swFrac
156       transCoef   -> bMeltCoef
157       frac_energy -> fracMelting
158      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
159       with default values (for now) that do not change the results.
160      remove old version of thsice vars advection in pkg/seaice.
161    o in FFIELDS.h:
162      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
163      - make pLoad & sIceLoad always available (but still only used if
164         ATMOSPHERIC_LOADING is #define).
165    o pkg/kpp: replaced _KPP_RL with _RL
166    o bug fixes for vertical diffusivity computations when both KPP and
167        3D diffusivity arrays are used.
168    o pkg/seaice: fix bug in evp solver, while doing that
169      - change (improve?) discretization of stress computations for both
170        cgrid-lsr and evp solver
171      - add a new routine to compute strain rates
172      - the above changes lab_sea results
173      - add no slip conditions for evp solver (off by default), lsr-version
174        may follow
175      - fix exchange for shear at Z-points (does not change lab_sea)
176      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
177        (to force the user to pick a time step since there is not "safe" way
178        of choosing it)
179      - add principal stress diagnostics
180      - rearrange fields for evp a little to avoid having to call a: too many
181        exchanges and b: exchanges for stress trensor components which we do
182        not have.
183      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
184        of evp, complete rewrite for lsr case (latter is does not yet work
185        in all cases)
186    o pkg/kpp: add code to have mixing in shelf ice caverns
187      - add myThid to all kpp routines (long overdue)
188    
189    checkpoint59
190    o pkg/exf:
191      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
192        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
193      - move exf header files from lower_case.h to UPPER_CASE.h ;
194        add missing cvs Header & Name
195      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
196      - add namelist param. selectStressGridPosition, exf_monFreq
197      - retire many _CLIM routines, and remove data.exf_clim
198        + params moved to data.exf
199        + climsst, climsss now handled by exf_set_gen, i.e.
200          climss?period=0 refers to constant field,
201          climss?period=-12 to monthly forcing
202      - split up namelists in data.exf
203    o pkg/seaice:
204      - remove seaice_exch and seaice_exch_uv
205      - remove superfluous exchange of theta
206      - add myThid to seaice_budget_ocean/ice
207      - add new interface for atmospheric wind forcing (C-grid only)
208        + new routine
209        + two new field (taux, tauy for stress over ice)
210        + removed one global field (DAIRN) for C-grid case only
211    o pkg/thsise
212      - 2nd set of modifs for thsice adjoint in conjunction with exf
213    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
214    
215    checkpoint58y_post
216    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
217      vertical diffusivity, similar to that in MOM4; turned on using
218      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
219      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
220    o Added capability for 3D specification of background vertical diffusion
221      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
222      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
223      "data" file that contains the 3D vertical diffusivity coefficients.
224    o ice dynamics (pkg/seaice) with thsice thermodynamics:
225      - add code within pkg thsice to advect & diffuse sea-ice fields
226      similar to (and will replace) what has been added in  seaice_advdiff.F,
227      but: - conserving Mass, Heat & Salt.
228           - better when using non-linear advection scheme (not yet fully tested)
229           - can also be used in atmospheric set-up (for now, only the diffusion).
230    
231    checkpoint58x_post
232    o IO option for global-file compact format:
233      - add options when generating topology (utils/exch2/matlab-topology-generator)
234      - add I/O capability (pkg/mdsio).
235      - adapt utils/matlab/rdmds.m to read this format.
236      for now long-line format not yet supported by pkg/mdsio (& exch2).
237    o shelfice: add a few diagnostics
238    
239    checkpoint58w_post
240    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
241      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
242      (and replace horiVertRatio in NH code).
243      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
244                         and tutorial_plume_on_slope (sensitive to truncation)
245    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
246      directly to drive seaice model (C-grid only)
247    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
248     - reintroduce computation of wind from stress,
249     - compute tau (in exf_bulkformulae.F) from windstress averaged to
250       mass points to avoid tau = 0
251     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
252    o rdmnc.m: make it work with "global" files created with gluemnc
253    o rdmnc.m : some improvements in dealing with singleton dimension
254      (tested on all testreport mnc output files).
255    o genmake2: disable pkg/profiles if netcdf test fails.
256    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
257    o move call to cal_readparms up to make calendar parameters/variable available
258      to all packages
259    
260    checkpoint58v_post
261    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
262      useDynP_inEos_Zc tested.
263    o pkg/exf: changes to properly interpolate/mask/scale initial fields
264    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
265      and portions thereof.  See read_cs.txt for description and examples.
266    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
267      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
268      following the great-circle arc between those 2 points.
269    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
270      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
271    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
272     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
273     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
274     - still needs work (not working with some options ; efficiency to improve)
275       and serious testing.
276     - use this scheme for temperature & salinity in 2 advection test exp.:
277       advect_xy & advect_xz, respectively.
278    
279    checkpoint58u_post
280    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
281    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
282    o testreport: add option "-skipdir" to skip some test.
283    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
284      momentum calculation.
285    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
286    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
287      remove checkpoint.F and the_correction_step.F (no longer used);
288      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
289    o add option (linFSConserveTr) to correct for tracer source/sink due to
290      Linear Free surface
291    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
292    o pkg/thsice: fix reading mnc-pickups
293    
294    checkpoint58t_post
295    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
296    o pkg/mdsio:
297     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
298       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
299       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
300     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
301     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
302       either MDS_READ_FIELD or MDS_WRITE_FIELD )
303     - new S/R (to replace MDSWRITEMETA), which allows to write more
304       informations (variable names, time ...) to meta files.
305     - modify rdmds.m to give back the meta file content.
306    o pkg/diagnostics: change vertical interpolation to be safer, and more
307       flexible (define p-levels to interpolate to in data.diagnostics);
308      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
309       diagnostic pointer.
310    o pkg/seaice: more cleaning up of seaice_growth, added many comments
311    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
312    o fix multi-category seaice:
313     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
314       SEAICE_MULTICATEGORY
315     - fix short wave heat flux
316    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
317       and allow to use EVP solver. Change forward lab_sea: test both EVP
318       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
319    o Initial check-in of lab_sea adjoint
320      (very similar to natl_box_adjoint/code_seaice)
321      * used C-grid and EVP solver
322      * used KPP, GM/Redi
323      * uses inAdExact=.TRUE.
324      * gradient checks fail for both ADM and TLM
325        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
326        f.d. gradients actually seem more problematic than ADM, TLM gradients;
327        issue is related to forward mismatch between g77 an ifort
328    o pkg/seaice: overhaul of thermodynamics
329     - growth.F and groatb.F are replaced by new routine seaice_growth.F
330     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
331     - move a few global fields out of SEAICE.h into seaice_growth.F and
332       make them 2D (FICE/QNETO/ ...)
333     - remove FO (it is the same as QNETO)
334     - introduce a few local fields to avoid modifying external fields such
335       as atemp, etc.
336    
337    checkpoint58s_post
338    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
339      changed exf_set_gen.F so that
340        genperiod=0 means input file is one time-constant field and
341        genperiod=-12 means input file contains 12 monthly means
342    o CG2D: use pre-computed solver main-diagonal (stored in common block);
343      this affects truncation error ; generate new output file for exp. which
344      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
345        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
346        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
347        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
348        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
349        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
350    o start implementation of deep-atmosphere and anelastic formulation
351    o verification: remove 2nd copy of input files and use script "prepare_run"
352      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
353    o mom_common/vecinv/fluxform: fix a few initialisation isssues
354    o profiles: fix for multithreaded case
355    
356    o diagnostics: rename few diags:
357      s/'PRESSURE'/'RCENTER '/g
358      s/'TICE    '/'oceFreez'/g
359      s/'TAUX    '/'oceTAUX '/g
360      s/'TAUY    '/'oceTAUY '/g
361      s/'SWFLUX  '/'oceQsw  '/g
362      s/DIFx/DFxE/g
363      s/DIFy/DFyE/g
364      and add few ocean-forcing diagnostics:
365      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
366    o modifications to pkg/seaice/growth.F and budget.F, which change results of
367      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
368      as actual snow thickness.  It now refers everywhere to effective snow
369      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
370    
371    checkpoint58r_post
372    o modifications to pkg/seaice/growth.F, which change results of
373      lab_sea experiment: fixes pertain to melting snow over open water, to
374      masking EVAP under sea ice, and to using the correct AREA variable for
375      computations of EVAP, PRECIP, HSNOW, and GHEFF
376    o add ability to read bathy, salt, and theta using MNC (off by def)
377    o add flooding algorithm and advection of HSNOW for pkg/seaice;
378      both are turned off by default and do no change any results
379    o seaice advection with pkg/thsice: a step toward the use of non-linear
380      advection scheme, but #ifdef or commented out for now (requires more EXCH).
381    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
382      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
383      in natl_box (affects results @ truncation level: update output.txt)
384    o multi-threading and IO:
385      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
386      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
387        (needed to work with SingleCpuIO): tested in all verif. exp.
388    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
389      affects the results (but none of the verification test uses this scheme).
390    o Adding some pkg/diagnostics capability to pkg/seaice
391      (will certainly be subject to changes)
392    o ctrl: adding new control variables:
393      lwflux, lwdown, evap, snowprecip, apressure, runoff
394    
395    checkpoint58q_post
396    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
397      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
398      high_res_cube configuration by 4% on Columbia.
399    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
400      add (in global_with_exf/code) a version of EXF_INTERP_READ without
401      dynamical allocation (seems to work in multi-threaded).
402    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
403      single CPU io) so that TAF does not have to see EESUPPORT.h
404    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
405    
406    checkpoint58p_post
407    o obcs: stop if obcs is used with useCDscheme = .true.
408    o shelfice:
409     - fix a sign error so that no slip at shelfice interface works
410     - remove stop for combination non-hydrostatic code and shelfice. That does
411       not mean, that the results are correct, but at least they are numerically
412       stable
413    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
414    o added adjoint exch routined for all exch*3d* routines
415      and updated flow directives
416    
417    checkpoint58o_post
418    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
419      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
420    o change controling S/R for writing pickup file (new S/R do_write_pickup)
421      and clean-up reading/writing of pickup files.
422    o fix local version of read/write pickup (NH part) in rotating_tank/code
423    o simplify EXCH interface:
424     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
425     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
426    o added the regrid package
427    o shelfice:
428     - add a simple boundary layer scheme to reduce noise
429     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
430    
431    checkpoint58n_post
432    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
433       local variable (not in common block).
434    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
435      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
436      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
437        to work with SingleCpuIO.
438    o add "_d 0" to real constant of pkg/cfc subroutines ;
439       update exp. cfc_exemple & tutorial_cfc_offline output files.
440    o multi-threading and IO:
441      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
442        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
443      - barrier before and after reading.
444      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
445      - avoid using MDS_WRITELOCAL for LAND pkg output.
446      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
447        common-block variables ; Allows multi-threading with master-thread IO.
448    o change default MAX_NO_THREADS from 32 to 4 ;
449      and stop cleanly when MAX_NO_THREADS is too small.
450    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
451    
452    checkpoint58m_post
453    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
454       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
455    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
456       keep global_ocean.90x40x15 (for AD testing) with former secondary test
457       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
458    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
459        add MITgcm_tutorials (= code + all the tutorials)
460    o ecco, option to compute cost for total ssh (mean+anom)
461    o consistent with addition of ptracer and ssh in pkg/profiles
462    o profiles: adding ptracer and ssh
463    o testreport: change multi-test output-file name
464      (from output.txt.{name} to output.{name}.txt)
465    o profiles: now ok for mutli-tiles case
466    o seaice: add 4 parameters for different advection schemes for area,
467      (effective) seaice thickness, enthalphy, and snow height. Their default
468      is the standard parameter SEAICEadvScheme
469    o calc_gw:
470     - add cosFacU in zonal viscous flux (harmonic.visc.).
471     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
472       of tutorial_plume_on_slope.
473    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
474    o calc_gw: true flux-form, account for horizontal grid spacing.
475      update rotating_tank results, but not plume_on_slope (affected at
476      truncation level, 11 digits).
477    
478    checkpoint58l_post
479    o calc_gw:
480     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
481     - remove side-drag for now (need to fix it); update plume_on_slope results.
482     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
483    o commit code to make SST/SSS weights spatially variable
484      (based on either variable in-situ or variable initial T/S weights)
485    o pkg/ecco:
486      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
487        now based on horizontally varying weights wthetaLev, wsaltLev
488      * cost_averagesflags now returns year indices in addition to day, month
489      * sflux balance is performed on annual basis
490        (sflxumm, sfluxmm2, bal_sfluxmm)
491      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
492        including separate counting and multipliers
493    o pkg/rbcs
494      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
495    
496    checkpoint58k_post
497    o testreport:
498     - always build in dir. "build" (if not there, mkdir build instead of building
499       & running in input)
500     - run in dir run (if it exists), in build otherwise.
501     - call prepare_run (if input/prepare_run exists)
502     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
503    o pkg/exf modifications to interpolation and rotation routines for more
504       reasonable treatment of North Pole singularity: for tracers North Pole
505       value is set to northernmost zonal-mean value, for zonal velocity it is
506       set to zero, and for meridional velocity it is set to northernmost value.
507    o pkg/exf/exf_check_range.F
508     - add tile index to diagnostics and move stop statement to the very
509       end of the routine.
510    o pkg/diagnostics: (diagnostics_main_init.F)
511      define title of isomorphic variables according to the current config.
512    o pkg/thsice with pkg/seaice dynamics:
513    - fix domain of computation (interior only, required for exf) and do exchanges
514    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
515    o towards a standard way of dealing with multi-threading in MONITOR
516      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
517    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
518       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
519    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
520    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
521    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
522       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
523    o tracer advection:
524     - clean-up and simplify calc_common_factors.F
525     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
526       advection subroutine (but still not used within DST advection S/R)
527    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
528    
529    checkpoint58j_post
530    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
531      from file (collects calls previously in FORWARD_STEP)
532    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
533    o adjoint store dir. adjusted accordingly
534    o genmake2
535      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
536    
537    checkpoint58i_post
538    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
539      on wind stress (SEAICEstressFactor defaults to 1.)
540    o Total number of Timers is finite (<=40): comment out 2 non-essential one
541      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
542    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
543      on CS-grid: no longer loosing mass.
544    o exf & curvilinear-grid: no longer modify longitude xC & xG.
545    o pkg/ggl90: fix sloppy output and fix a bug
546    o pkg/seaice: added SEAICEuseEVPpickup parameter
547      - Set to false in order to start EVP solver with
548        non-EVP pickup files when using SEAICEuseEVP
549      - fix sign error in diffusion in seaice_calc_rhs
550    
551    checkpoint58h_post
552    * Modifications for bottom topography control
553      o replace hFacC by _hFacC at various places
554      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
555      o add non-self-adjoint cg2d_nsa
556      o update autodiff support routines
557      o re-initialise hfac after ctrl_depth_ini
558      o works for 5x5 box, doesnt work for global_ocean.90x40x15
559    * Adding verification for 5x5 box (4-layer) bottom topography control
560    
561    checkpoint58g_post
562    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
563       used for mean seasonal cycle, mean diurnal cycle); add an example
564       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
565    o pkg/ggl90:
566      - add parameter (minimum surface kinetic energy)
567      - fix bug (avoiding division by zero)
568    o couple pkg/thsice to pkg/seaice:
569      - modify advection in seaice to accomodate new scalar fields to be advected
570      - only muliDimAdection scheme work with seaice/thsice
571      - mapping of thsice-variables to seaice-variables, back and forth
572      - does not break the verification experiments, but does not give the
573        desired results either
574    o pkg/seaice
575      - make (default) second order advection a bit less confusing?
576    
577    checkpoint58f_post
578    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
579      to pkg/seaice):
580      - new routines thsice_map_exf and thsice_get_exf provide the interface
581      - add an additional formal parameter to thsice_solve4temp
582    o pkg/exf:
583      - add new fields wspeed, snowprecip (to be able to couple to thsice)
584      - correct Stefan-Boltzmann constant
585      - new parameter for longwave surface emittance
586      - separate some stuff from exf_bulkformulae into new routines  
587        exf_radiation, exf_wind
588      - add new parameters and constants: longwave emissivity for ocean, ice
589        and snow, evaporation parameters over ice
590      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
591        either wind from stress or stress from wind
592    o pkg/thSIce:
593    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
594    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
595       and THSICE_CALC_THICKN
596    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
597    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
598      to make debugging easier.
599    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
600    o pkg/bulk_force:
601      - clean-up comments and parameters ;
602      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
603    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
604      generate new output for test-experiment: aim.5l_cs.thSI
605    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
606      testreport accordingly
607    
608    checkpoint58e_post
609    o SEAICE_CGRID adjoint done
610    o R_STAR adjoint implemented.
611      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
612      * need to sort out init. of h0facc, etc.
613    o Make pkg/profile fully independent of ecco,cost, etc. stuff
614      to be able to use it in pure forward.
615    
616    checkpoint58d_post
617    o upgrade simple test-experiment to tutorial example:
618     step.1: duplicate the experiment and (step.2) will remove the old copy.
619      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
620      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
621      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
622      tutorial_global_oce_biogeo    <- copy of dic_example
623      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
624      tutorial_plume_on_slope       <- copy of plume_on_slope
625      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
626      tutorial_global_oce_optim     <- empty for now (David ?)
627      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
628     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
629    o correct a sign problem in cost_scat.F
630    o obcs and ptracers: fix boundary conditions for advections schemes
631      with larger stencil
632    o thsice adjoint: start
633    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
634      completeness
635    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
636      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
637    o ptracers adjoint:
638      * avoid extensive recomputatations
639      * fix missing re-init. of gptr (missed by TAF)
640    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
641      me to turn off the excessive output to STDOUT that this package produces
642    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
643      and add those terms in Vector-Invariant formulation.
644    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
645      if the control period (xx_hfluxperiod etc) is 0
646    o in profiles pkg, clean routines and fix details
647    o in ecco pkg, reading ssh data:
648      fix problem in case the model does not start at iter0=0
649    o fix mnc-pickup/restart for ptracers
650    o new package prifiles:
651      code to compute profile-based cost by Gael Forget
652      (modifs in ecco, ctrl, autodiff)
653    o Benign bug fix in initialization (spotted by M. Mazloff) of
654      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
655    
656    checkpoint58c_post
657    o adjoint: finish NLFS adjoint and provide reference output in
658      verification/global_ocean.90x40x15/results_ad_nlfs
659    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
660      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
661      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
662      with SEAICE_CGRID defined.
663    o move calendarDumps from "data" to "data.cal" and clean-up the code
664      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
665    o add useEXF & useCAL flags (for now, set in hard-coded way)
666    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
667      (were missing in NH mode, and wrong in quasihydrostatic mode).
668      waiting for Chris updated version of calc_gw to add those CALLs.
669    o fix bug in quasihydrostatic S/R ;
670      add a test for this option: global_ocean.90x40x15.qshyd
671    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
672      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
673    o add on/off flag useOffLine for package OFFLINE
674    o seaice:
675      - modify advection so that it works also on the C-grid
676      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
677        problem in multi-tile runs with C-grid
678      - add flags for clipping ice velocities and/or masking solver forcing
679      - fix drag (ocean on ice) formulation and a bug that caused noise in the
680        C-grid solver
681      - added a few comments to seaice_diffusion.F
682      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
683        are now exclusive)
684      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
685        required re-ordering the code a little:
686       + make DAIRN global variable (defined in SEAICE)
687       + move computation of the viscosities eta and zeta into a new separate
688         routine (because I need to recompute them in seaice_ocean_stress.F)
689    
690    checkpoint58b_post
691    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
692      update output.txt of exp. aim.5l_cs.thSI
693    o various mnc cleanups and improvements:
694      + shrink lookup tables by factor of ~4
695      + better error reporting when running out of lookup space
696      + able to handle longer path/file names (up to 500 chars)
697    o adjoint:
698      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
699      - TBD: "hidden" mom_vecinv recomp. in dynamics
700    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
701     (allow to differentiate between forcing components using new integer flags:
702      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
703     and add new flag to put Dissipation tendency out of Adams-Bashforth.
704    o ecco
705      - enable trend removal from SSH anomaly obs.
706    o adjoint
707      - a fix for PmEpR when #undef EXACT_CONSERV
708      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
709      - try to fix "hidden" recomp. in forward_step for NLFS
710        (NLFS seems broken sometimes after I checked it in)
711    o seaice:
712     - add c-grid version of the dynamic solver:
713       + three new routines that are the c-grid substitute lsr, dynsolver
714         and ostres
715       + put a few fields that were local to dynsolver into global common
716         blocks, so that I can move the computation of stresses etc into
717         seaice_lsr (saves coding but may break the adjoint).
718     - replace more hardwired parameters by runtime parameters
719     - add ice masks that mask the rhs of the implicit solvers where there
720       is no ice (commented out in seaice_dynsolver, because i am not sure
721       if this works properly), eventually this should replace the clipping
722       of ice velocities in seaice_dynsolver to +/-40cm/s.
723    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
724      include it only where its needed
725    o move balancing of fluxes before the call of external_forcing_surf
726    o seaice:
727      - correct units of turning angles (now they are really in degrees)
728      - move computation of GWATX/Y out of main routine into dynsolver
729      - initialize GWATX/Y in seaice_init
730    o Apply mask on Fresh-Water flux (needed for SSH forcing).
731      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
732    o seaice: add runtime flags for turning angles (default to zero)
733    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
734      and trend from exf forcing and ctrl control adjustments
735    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
736      (since checkpoint57x_post)
737    o change the default rotation period to 86164.s = the Earth rotation
738    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
739      and based on a reference stratification. Tested within hs94.cs-32x32x5.
740    o seaice advection: add code for choosing between the default (2nd order
741      central differences) and multiDim advection schemes provided by
742      pkg/generic_advdiff
743    o seaice:
744      - removed all references to SEAICE_GRID.h fields from
745        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
746        (cubed-sphere configuration will change a little)
747      - grid computations in seaice_init are obsolete now.
748      - cleaned up code a little so that is easier to read (hopefully).
749      - added new (better?) discretizations of default advection and diffusion
750        (turn on with SEAICEuseFluxForm)
751      - replace 1 in 3d global fields by kSurface in growth.F
752      
753    checkpoint58a_post
754    o seaice:
755      - bug fix in advect.F
756    o shelfice:
757      - separate shelfice load anomaly from pload (breaks with time
758        dependent forcing), => introduce constant field shelficeLoadAnomaly.
759        Its default is 0., but it may be computed more cleverly from (unknown)
760        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
761        done offline. A good approximation of the pressure load anomaly is
762        necessary to avoid large initial adjustment processes underneath
763        deep-reaching shelfice.
764      - small fix in ISOMIP shelfice_thermodynamics
765      - add more sophisticated thermodynamics of Hellmer (1989), this is
766        now the default
767      - give a few constants more intuitive names
768    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
769      if bulk formulae are used in long integration (especially EmPmR). Turn
770      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
771      if balancePrintMean, the imbalance that is substracted is printed to
772      STDOUT.
773    o fix bug (typo) in obcs_apply_eta.F
774    o add a new package shelfice which enables us to model the circulation
775      underneath shelf-ice with draughts of hundreds of meters.
776     - works
777     - to do: + include improved thermodynamics
778              + check whether kSurfC (from model/inc/SURFACE.h) can be used
779                instead of new field kTopC
780              + can we use topoFile, Ro_surf and existing code in ini_depth.F
781                instead of new field R_shelfIce and new code in ini_depth.F
782                and ini_mask_etc.F?
783              + adjust vertical mixing schemes?
784    o seaice pkg:
785     - add a cpp-flag to include a simple formula for a salinity dependent
786       freezing point of sea water at the surface
787     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
788       meridional stresses are now different (and hopefully correct)
789    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
790       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
791       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
792    o pkg/diagnostics: add options and parameters for regional-statistics
793       diagnostics ; define regions by reading a region-mask from a file
794       (might add other options later)
795    o pkg/bulk_force:
796     - add option and parameters to use AIM surface-flux formulae.
797     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
798       others forcing fields (defined in PARM05, parameter file "data") are loaded
799       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
800     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
801     - use the right EXCH call for uwind,vwind (to work on CS-grid).
802     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
803       and parameters (note: calcWindStress replaces .NOT.readwindstress).
804     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
805    
806    checkpoint58
807    o add "--embed-source" option to genmake2 which, when the supporting
808      tools can be compiled (as determined by genmake2) will turn on the
809      embed_files package which then embeds the entire MITgcm source code
810      (*.[fFhc] + Makefile) used for the build within the executable
811      - requested by CNH but off by default
812      - adds a paltry <9MB to the mitgcmuv executable in most cases
813      - only writes the output when useEMBEDSRC in eedata is true
814    o clean up 3-dim. relaxation codes:
815      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
816      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
817      * Thanks to Tom Haine for testing!
818    
819    checkpoint57z_post
820    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
821      affects output (@ truncation level) of exp. plume_on_slope ; updated.
822    o fix the pickup behavior for obcs in combination with ptracers
823    o fix a bug in ptracers_external_fields_load
824    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
825      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
826    o transfered surface NH pressure to eta field (if exactConserv).
827    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
828         and update lab_sea output.txt file.
829    o completing 3-dim. relaxation code: additional term
830         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
831      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
832      * At compile time, in "EXF_OPTIONS.h" set
833          #define  ALLOW_CLIMTEMP_RELAXATION
834          #define  ALLOW_CLIMSALT_RELAXATION
835      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
836          tauThetaClimRelax3Dim = 15552000.0,
837          tauSaltClimRelax3Dim  = 15552000.0,
838      * 3 cases:
839          1) Use a constant-in-time 3-dim. field
840          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
841          3) Real-time relax. to time-evolving prescribed field
842    o Adding Laplacian-type smoothness constraint on
843      initial and boundary (forcing) controls (ic, bc)
844      * enable at compile-time via
845        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
846      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
847      * Absolute scale somewhat unclear so far
848      * no area weighting was included since no other cost term does so far
849    
850    checkpoint57y_post
851    First step for a NLFS adjoint
852    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
853    o new init. routines for calc_r_star, calc_surf_dr
854    o still need to deal with ini_masks_etc
855    o testreport seemed happy
856    checkpoint57y_pre
857    
858    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
859    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
860    o add new offset feature to offline pkg (plus minor cleanup)
861    o cfc fixes for final year of integration
862    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
863      be in GCHEM_OPTIONS).
864    
865    checkpoint57x_post
866    o fix testreport Pb in multiple test experiment.
867    o cleanup our namelist syntax in verification:
868      - make it more F95 standards compliant (some work still needed)
869      - allows the vast majority of our tests to work with gfortran
870    o Non-Hydrostatic:
871     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
872     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
873    o Allow to apply AB on T,S rather than on AB(gT,gS):
874     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
875     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
876       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
877     - need a "clever" read_pickup to restart from the other AB formulation
878    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
879    o remove some unused variables (reduces number of compiler warnings)
880    o adjoint
881      * Disable useVariableViscosity for adjoint for time being
882        (there are a number of extensive recomputations)
883      * Initialize certain variables needed for adjoint
884    
885    checkpoint57w_post
886    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
887                 fix the singleCpuIO RS version of MDSWRITEFIELD
888       and add a WARNING if using globalFiles=T with multi-processors.
889    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
890      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
891    o tracer advection scheme:
892      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
893       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
894       was not very convenient).
895      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
896       (further tests needed for the implicit DST & Flux-Limiter schemes).
897    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
898      and sRef for convenience, handy, when you want to initialize
899      ptracers in a large domain with a constant non-zero value. Also,
900      untangle ptracers_init.F a little.
901    
902    checkpoint57v_post
903    o change dome exp. to use variable viscosity in side-drag terms.
904    o remove all the files from the cfc_offline test since they are now
905      incorporated into tutorial_cfc_offline which has been producing
906      identical results for a few days of testing
907    o add new parameter: sideDragFactor to enable half-slip-side BC
908      and change side-drag S/R to use viscosity from mom_calc_visc
909      (can switch back by setting sideDragFactor=0.); affects results at
910      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
911       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
912    o vorticity & strain are now computed without masking, to account for
913      no-slip-side BC in variable viscosity calculation ; mask is applied
914      anyway later on, before computing advection/coriolis terms.
915    o modify exp4 to test new obcs support for reading from external files
916      and for passive tracers
917    o fix behavior of ptracers_monitor when monitor output is written to a
918      netcdf-file; still not independent of monitor.F (writes in the same
919      file).
920    o change default value of tRef (put a uniform, meaningful value for ocean
921      & atmos) and initialize sRef (was missing, as Martin mentioned).
922    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
923      to be proportional to enstrophy dissipation length.  Thus,
924       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
925      This is now consistent with Smagorinsky and with the manual.
926    
927    checkpoint57u_post
928    o OBCS and PTRACERS: add open boundary support for passive tracers
929      - either use homogenous (pseudo) v.Neumann conditions or prescribe
930        OB-values from file; this is not different from the way theta and salinity
931        are treated
932      - however, Orlanski-radiation conditions are not supported, and the model
933        will stop if you use pTracers and Orlanski at the same time.
934      - beefed up the rountine obcs_external_fields_load: now only those open
935        boundary values are overwritten with values from files for which there
936        are really files, otherwise the OB-fields remain untouched. This makes
937        it possible to use different OBs at different ends of the domain (as
938        with EXF)
939    o reduce number of exch calls in shap_filt (s2).
940    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
941      truncation level) 4/5 MLAdjust test results (11&12 digits match).
942    
943    checkpoint57t_post
944    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
945    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
946      same truncation, independent of the face number: affects affects several
947      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
948    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
949      note that biharmonic viscosity + no-slip was not tested in any experiment.
950    o fix bug in non-linear free-surf side-drag ; generate new output for
951      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
952    o make mnc honor the writeBinaryPrec flag for most kinds of output
953    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
954    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
955      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
956    o add brackets in multi-terms sum to get same truncation, independent of
957      the face number (manage to get exactly same value of gU,gV at the cs-edge)
958      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
959    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
960      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
961      a maximum grid-scale Reynolds number.  Also, changes all length calculations
962      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
963      Suggested values of viscosity parameters found in mom_calc_visc.
964      Many new viscosity diagnostics available.
965    
966    checkpoint57s_post
967    o Add clearing-house for viscosity calculations, mom_calc_visc and
968      correct numerous bugs in LeithD and Smagorinsky discretizations.  
969      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
970      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
971      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
972      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
973      The Strain-Tension form is now called with useStrainTensonVisc=.true.
974      ViscAhStrain and viscAhTension are now retired.
975    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
976    o In response to JMC's bug report, genmake2 now ignores any soft-links
977      that it finds in the *current* directory when searching for files.
978      Soft-links found in any other source directories will still work as
979      they did before.
980    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
981      a C routine to unlimit the stack size
982    o mnc-ify pkg/aim snapshot vars
983    o mnc-ify pkg/land as requested by Daniel
984    o various changes to mnc including:
985      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
986      - output can now be grouped so that all files within a group
987          change the ITER portion of their names in lock-step together
988      - can now read ("global") PER-FACE (in addition to PER-TILE) files
989          and works with both EXCH1 and EXCH2 (but needs more testing)
990      - writing works for all verification test cases w/ g77 on Linux
991    
992    checkpoint57r_post
993    o make MNC variable initialization happen earlier
994    o add diagnostics for (almost) each term of the momentum Eq.
995    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
996    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
997    o remove MINIMAL_TAVE_OUTPUT option ;
998      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
999    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1000      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1001    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1002    o add time-dependent SST, SSS control
1003    o cost terms in ecco/ modularized (new cost_generic.F)
1004    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1005    o new infrastructure for seaice model vs. obs misfits in seaice/
1006      * driver from the_main_loop.F is seaice_cost_driver.F
1007      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1008      * gradient check in Exp. 6a of natl_box_adjoint/
1009    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1010      (see README file)
1011    
1012    checkpoint57q_post
1013    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1014    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1015      - bug was reported by Jean-Michel and Ian Fenty
1016    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1017      update exp. cpl_aim+ocn output.
1018    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1019      Needed for high-res. runs with large global files
1020      to be able to limit tapelev size
1021    o Changed some tests for adjoint:
1022      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1023      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1024      * global_ocean.90x40x15/ back to default 3-level checkpointing
1025    o Modifications to enable scripted COMMON to MODULE conversion
1026      * verification/OpenAD/code/ has necessary scripts and description;
1027      * converts, compiles and runs successfully;
1028    
1029    checkpoint57p_post
1030    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1031    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1032      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1033    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1034    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1035      (was already the case for dissipation with mom_vecinv,
1036       and also the case for grad.PhiHyd when staggered-timeStep)
1037      This will allow to put dissipation out-off the AB time-stepping.
1038     Unfortunately, affects truncation error. Update output of exp. that "fails"
1039      (cg2d matching number) and leave the others for later: front_relax(10),
1040      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1041      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1042    
1043    checkpoint57o_post
1044    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1045      (2) its ready to be documented during the 20050801 DocFest
1046    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1047      for ideal_2D_oce and lab_sea on linux_ia32_g77
1048    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1049      in global1x1_tot/code_seaice_adj to access indices 32, 33
1050      (worth another tag)
1051    
1052    checkpoint57n_post
1053    o adding precip control xx_precip 32
1054    o adding swflux control xx_swflux 33
1055    o Replacing 10 forcing penalty cost routines by 1 generic.
1056    o Implementing partitioning in time-mean and variable adjustment
1057      for atmos. state.
1058    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1059  o in natl_box_adjoint:  o in natl_box_adjoint:
1060    * updated: results_bulk/    * updated exp 1 to 10
1061    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
1062    o updated global1x1/*_seaice_adj/
1063      to incorporate latest changes
1064    o enable useSingleCpuIO for mdsio vector routines
1065      (applies in particular to tapelev I/O)
1066    o removed inefficient K-loop in all active_file*control*.F
1067    
1068  checkpoint57m_post  checkpoint57m_post
1069  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)

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