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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.918 by dimitri, Wed Dec 5 07:28:28 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/seaice: removed SEAICE_FFIELDS.h and seaice_get_forcing.F
8  o moved ptracer ctrl index 17 -> 32    seaice forcing fields can now be read only through pkg/exf
9    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
10    o pkg/exf: added CPP option EXF_SUBTRACT_UVVEL_FROM_UVWIND for subtracting
11      UVEL and VVEL from UWIND and VWIND prior to applying bulk formulae.
12    
13    checkpoint59k
14    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
15      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
16    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
17      all experiments pass when compile with un-initilised var. checking option.
18    o added pkg/salt_plume
19    o script to test restart (for now, in MITgcm_contrib/jmc_script)
20    o pkg/seaice: new read/write pickup version.
21      read meta file and write only fields which are needed to restart.
22      ( same logic as main pickup file ; also using pickupStrictlyMatch )
23    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
24    o lab_sea.hb87: modify the domain & update output.hb87.txt :
25      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
26      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
27      process. Fixed here by closing the domain at the Northern boundary.
28    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
29    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
30      a set of consecutive levels in/from a 3-D array.
31    o pkg/ptracers:
32      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
33      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
34    
35    checkpoint59j
36    o in pkgs: dic, obcs, offline, rbcs:
37      standard way to compute coeff. for time interpolation between 2 time reccords
38      which retains full precision (& make results less dependent on compiler).
39      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
40    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
41      packages instead of reading ice cover and wind speed separately
42    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
43     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
44      to allow to compile customized code before the update)
45    o cleaning-up:
46      - fix CPP instruction syntax in pkg/obcs
47      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
48        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
49      - fix some threads issue in IO parts.
50    o pkg/dic:
51      - add tons of "_d 0" (--> much better testreports !)
52       and then update outputs of tutorial_global_oce_biogeo
53    o pkg/mom_fluxform:
54      add a special version of momentum advection intended to conserve momentum
55      next to a bathymetry step or a coastline edge. (default = off = #undef)
56    o new read/write pickup version:
57      - for now, only implemented for main (mdsio) pickup file.
58      - write out only what is needed to restart; merge pickup_nh , pickup_ph
59        and main pickup together.
60      - read meta file; read only what is needed to restart; stop if a field
61        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
62        if it make sense (even if the restart is not perfect).
63      - if no meta file, assume that pickup to read corresponds exactly to
64        a pickup that would currently be written.
65      - read pickup written in the old format (until checkpoint59i) if it
66        recognizes an old meta file (no field-list).
67      - add a meta file in exp. which starts from a pickup: 2 cases:
68        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
69         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
70        b) a meta file describing the content of the associated pickup file
71         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
72    o pkg/mdsio & pkg/rw:
73      - new routine to read a meta file ; new set of routine to read
74        Multiple-fields file (with meta file).
75    o added open boundary conditions capability for seaice
76        HSNOW, HSALT, UICE, and VICE
77    
78    checkpoint59i
79    o adjoint:
80      * fix multiDimAdvection adjoint
81        (partial recomputation problem by TAF for fVerT(:,:,kDown)
82        and comlev1 size definition (maxpass vs. max. number of tracers)
83      * verification/global_ocean.90x45x15 adjoint now tests
84        NLFS and multiDimAdvection using DST3 (=30)
85      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
86    o pkg/kpp: add "_d 0" to real constant (if missing);
87      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
88      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
89    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
90      for internal parameters related to restart process (formerly from PARAMS.h)
91      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
92    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
93      as argument. (only atm2d & obcs write_pickup have not yet been updated)
94    o pkg/monitor:
95      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
96      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
97      - account for deep Atmosphere factor and density factor (anelastic)
98    o added open boundary conditions capability for seaice HEFF and AREA
99    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
100      thermodynamics
101      - requires a little reorganization, which affects the testreport results
102        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
103        so that now the conservative form is tested
104      - add a few comments
105    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
106    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
107    o add new diagnostics to seaice: advective, diffusive fluxes (only for
108      multidim-advection, for scheme 2 they are not filled) and transports,
109      thermodynamic growth rates
110    o change units of EmPmR (inside the code, + within coupling interface)
111      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
112      Affects results @ truncation level (cg2d match) and update output of
113       experiments: lab_sea(6), global_ocean.90x40x15(10),
114      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
115      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
116      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
117      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
118    
119    checkpoint59h
120    o pkg/exf:
121      - improve vectorization by moving if-statement out of loops in
122        exf_mapfields, exf_radiation
123      - exf_bulkformulae.F: introduce 2D fields and vectorize code
124    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
125    o testreport:
126      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
127        monitor & update offline_exf_seaice exp. output.
128      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
129    o pkg/seaice:
130      - bug fix in the evp solver: boundary conditions were affected be
131        masking of zMax/zMin (changes results)
132      - minor bug fix in boundary conditions in seaice_calc_strainrates
133        (changes results for no_slip)
134      - seaice_lsr.F: make interpolation of eta dependent on boundaries
135      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
136      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
137        stress formulation and no-slip boundary conditions
138    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
139      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
140    o pkg/seaice: a first HSALT time stepping equation has been checked in
141    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
142      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
143      without requiring DO-IF statements
144    o pkg/thsice:
145      use continuous power-law function for partition of energy between lateral
146      melting/freezing and thinning/thickening ; old code using step function
147      still available with #undef THSICE_FRACEN_POWERLAW
148      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
149    o testreport: change AD testing : check against results/output_adm.txt
150      using same scripts as for forward test.
151    
152    checkpoint59g
153    o adjoint testing: in preparation for changing testreport:
154      - output format: cost and grad written on separated lines
155      - ad output results in directory "results" (instead of "results_ad")
156    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
157    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
158    o pkg/ecco: allow user defined cost function contributions
159    o testreport:
160      Allow to choose (per experiment) the list of tested output variables
161       and the main variable (used to issue a pass/FAIL ) ;
162      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
163      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
164      Also modify printing of summary:
165       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
166       b) echo the list of tested variables in the individual summary.txt of
167          each experiment.
168    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
169      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
170      (but still depend on the tile decompostion of the domain).
171    o pkg/seaice: change a discretization detail to make the B-grid code
172      "more symmetric". This change is likely to remove all "ridges/leads" that
173      where quasi-aligned with the grid in B-grid solutions. It may also be
174      the solution to the stress coupling issues with the B-grid.
175    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
176      remove .cvsignore from input dir. (since testreport no longer run here).
177    o pkg/thsice:
178     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
179     - fix reshaping of sea-ice just after advection:
180       melt all the ice only if ice-volume is too small.
181     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
182       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
183     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
184    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
185      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
186    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
187      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
188      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
189      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
190      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
191      -> update output.txt
192    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
193     this affects truncation error: -> update output.txt of exp:
194      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
195      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
196    
197    checkpoint59f
198    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
199    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
200      a bounded range (in forward mode)
201    o pkg/ecco, ctrl, autodiff and mom_common:
202     internal parameter controls, completements of implementations
203    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
204    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
205      (not seem any difference in testing results).
206    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
207       at face corners.
208    o pkg/generic_advdiff:
209     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
210      loop range indices for computing vertical advection tendency
211      and do the calculation in the interior only (no overlap) ;
212      for now, only implemented for SOM advection (to save CPU time).
213     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
214    o exch2 adjoint
215      First set of changes:
216      - add exch2 hand-written adjoint templates
217      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
218        This will require cleanup in pkg/autodiff/*.F
219        (changed routines currently kept separate in verif. code/)
220      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
221        that used to hide exch2 or cubed-sphere specific code
222        (commented via 'cph-exch2')
223    o pkg/seaice
224      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
225    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
226       output of global_ocean.cs32x15.thsice .
227    
228    checkpoint59e
229    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
230      for B-grid vector (not yet tested) and C-grid vector (<- only used
231      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
232    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
233      (#ifdef ALLOW_SALT_PLUME)
234    o gather_2d/scatter_2d: removed halo regions
235    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
236      scheme and the corresponding test case (under front_relax dir). For now,
237      only available with Skew-flux form and not yet tested in realistic set-up.
238      adjoint: store directives updated, but gradient checks deteriorated,
239      so maybe GM/Redi adjoint is now broken.
240    o seaice adjoint
241      * add AREA, HEFF, HSNOW as control variable
242        (should not change lab_sea results)
243      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
244    o pkg/seaice:
245      * added computation of saltFlux in seaice_growth;
246        For time being, sea ice salinity is assumed constant
247        contribution of snow flooding to freshening of sea ice is neglected.
248        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
249        defaults to 0.0 in order to maintain backward compatibility.
250        Typical values for SEAICE_salinity are 4 to 10 g/kg.
251      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
252      * added SEAICE_availHeatFrac, which specifies fraction of surface level
253        heat content used to melt or grow ice
254      * commented out cap of HICE: it helps keep ice thinner
255      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
256      * applied OBCS T/S mask to HEFFM sea ice mask
257    
258    checkpoint59d
259    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
260     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
261     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
262    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
263     and change default value of parameter "GM_Small_Number";
264     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
265       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
266       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
267    o pkg/ecco: cost function when applying pkg/smooth to controls
268    o pkg/ctrl: add forcingPrecond run time parameter
269    o pkg/seaice:
270     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
271     - fix bug in metric terms of u-equation in LSR solver (implicit part),
272       changes verification/lab_sea
273     - rearrange implicit part of u-equation in LSR solver to make it easier to
274       read, understand, and debug. This causes changes at the truncation level.
275     - fix (serious) bug in the boundary conditions (sign error in the implicit
276       part) of the LSR solver. Changes all LSR results.
277     - fixed problem with HSNOW initialization to avoid thick snow when AREA
278       is initilized with small values - does not change lab_sea results.
279     - added HsnowFile initialization capability
280    o pkg/smooth: addition to model/src and pkg/ctrl so allow
281     initialization of pkg/smooth and application to control vector
282    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
283    o dependencies: pkg/profiles requires pkg/cal
284    o pkg/profiles:
285     - added option ALLOW_PROFILES_GENERICGRID
286         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
287         that interpolation information (grid points and coefficients) is provided
288         within the netcdf input files.
289         -> sample matlab scripts can be found in MITgcm_contrib/gael
290         that allow you to prepare netcdf input files.
291     - also modified: cleaner include statements, cleaner error print statements,
292       cleaner stops when error, and more tests of the netcdf input files consistency.
293    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
294    o pkg/seaice:
295     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
296       requires a new routine: seaice_diagnostics_fill.F
297     - make sure that seaice does not move if not forced (pressure replacement
298       method, Hibler and Ip, 1995), changes results
299     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
300     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
301       It is turned off by default (=-1.), because it changes the results.
302     - make it possible to read AREA from a file, too.
303    
304    checkpoint59c
305    o add S/R and diagnostics for oceanic mixed-layer depth
306    o move GMRedi call after all vertical mixing schemes (including KPP)
307    o pkg/thsice:
308     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
309      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
310    o pkg/obcs:
311     - bug fix for balance code
312    o pkg/seaice:
313      - allow values of SEAICE_elasticParm > 1
314      - add new parameter SEAICE_evpTauRelax as an alternative
315        to SEAICE_elasticParm
316      - make lsr boundary conditions free slip (by default), changes result
317      - add code for no slip boundary conditions for lsr
318      - set minimum of zeta to zero (and not 4e8) (changes results)
319      - add a cap on AREA after advecting AREA if seaice_growth is not called
320    o change calculation of Visbeck K:
321      - no longer depend on tapering scheme; instead, compute slope (limited
322        by GM_maxSlope). this is equivalent to what was comuted before with
323        clipping or linear tappering.
324      - fix vertical averaging (wrong by 1/2 level)
325      - leave the old version (but will not be maintained) within
326        #ifdef OLD_VISBECK_CALC / #endif
327      - update output of exp. ideal_2D_oce
328    o change error catch in calc_r_star to improve vectorization
329    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
330      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
331    o adjoint:
332      Re-organized adjoint checkpointing according to Matt Mazloff
333      (but with modifs/completions/cleanups)
334      Storing is now bundled into large arrays to optimized I/O
335      (and second step in cleanup of the_main_loop)
336    
337    checkpoint59b
338    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
339      - export/import (between ocean & coupler) fields needed for ocean DIC.
340    o pkg/seaice:
341      - get rid of three more exchanges seaice_calc_viscosities (required
342        different loop boundaries in seaice_lsr and seaice_ocean_stress)
343      - bug fix in seaice_ocean_stress (update of lab_sea required)
344      - reduce loop boundaries to necessary minimum also in seaice_evp
345      - go back to the old way of computing deltaC/Z as the adjoint likes that
346        better
347    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
348      passive tracer to an Age Tracer) + update output.txt
349    o pkg/exf:
350      - implement A-grid / C-grid selection for wind-stress input files.
351      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
352      for now, in exf_bulk_largeyeager04.F only :
353      - change implementation for case where windspeed + 2. components wind-stress
354        are read-in. AND use rhoConstFresh to convert evap.
355    o pkg/seaice:
356      - use correct EXCH_UV for wind-forcing (on A-grid).
357      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
358        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
359    o pkg/exf:
360      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
361      EXF_INTERPOLATION:
362      - merge global_with_exf/code version of exf_interp_read.F
363        to the main code ;
364      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
365        reading the file ; Important: This options needs to be defined to recover
366        previous code.
367        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
368      - no longer loose real*8 precision along the way when using exf_iprec=64.
369    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
370      - change discretisation of evp-solver in order to avoid another exchange
371        (changes lab_sea) and clean up a little
372      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
373        help the adjoint (this also changes the results slightly)
374      - add a few "_d 0" where they had been missing in seaice_evp.F
375      - cleaning up: remove unused seaice_calc_rhs.F
376    o pkg/exf: some cleaning-up:
377      - change various "constants" into runtime parameters
378      - cleaned-up Large&Yeager04 routine which should eventually
379        replace exf_bulkformulae.F (changed names of S/R and CPP)
380        and merged various ALLOW_ATM_WIND options
381     only used with thsice pkg (in thsice_get_exf.F):
382      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
383        which are used when useStabilityFct_overIce=TRUE (= the default)
384      - change default values of ice & snow emissivity and scale downward LW
385        by ice & snow emissivity.
386    o pkg/thsice:
387     fix few little problems, in thsice_calc_thickn.F:
388      - growth vertically (and not laterally) if iceFrac == iceMaskMax
389      - melt only laterally if hIce < hThinIce (as the comments say)
390      and in thsice_extend.F:
391      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
392      - start to form ice as soon as the minimum ice-volume is reachable.
393     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
394      and cpl_aim+ocn
395    o pkg/kpp
396     - move computation of surface related input fields to KPP into a new
397       subroutine kpp_forcing_surf.F
398     - remove wrong (within bi,bj loops) EXCH calls.
399     - little cleaning (add argument myThid in last position, cvs header ...)
400     - for now, fix conservation problem by exchanging KPPviscAz (may not
401       be the best fix)
402    o pkg/seaice
403     - check for inconsistent evp parameter/cpp-flag combination
404     - remove leftover errIO flat for obsolete name list error handling
405    o OpenAD
406     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
407    
408    checkpoint59a
409    o pkg/seaice: some parameter clarifications and a little bit of clean up
410    o pkg/thsice: rename run-time parameters:
411       himin       -> hIceMin
412       himin0      -> hThinIce
413       hihig       -> hThickIce
414       i0          -> i0swFrac
415       transCoef   -> bMeltCoef
416       frac_energy -> fracMelting
417      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
418       with default values (for now) that do not change the results.
419      remove old version of thsice vars advection in pkg/seaice.
420    o in FFIELDS.h:
421      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
422      - make pLoad & sIceLoad always available (but still only used if
423         ATMOSPHERIC_LOADING is #define).
424    o pkg/kpp: replaced _KPP_RL with _RL
425    o bug fixes for vertical diffusivity computations when both KPP and
426        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
427        are no longer updating the vertical diffusivity array
428        (passed as argument) but are (re-) setting those arrays.
429    o pkg/seaice: fix bug in evp solver, while doing that
430      - change (improve?) discretization of stress computations for both
431        cgrid-lsr and evp solver
432      - add a new routine to compute strain rates
433      - the above changes lab_sea results
434      - add no slip conditions for evp solver (off by default), lsr-version
435        may follow
436      - fix exchange for shear at Z-points (does not change lab_sea)
437      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
438        (to force the user to pick a time step since there is not "safe" way
439        of choosing it)
440      - add principal stress diagnostics
441      - rearrange fields for evp a little to avoid having to call a: too many
442        exchanges and b: exchanges for stress trensor components which we do
443        not have.
444      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
445        of evp, complete rewrite for lsr case (latter is does not yet work
446        in all cases)
447    o pkg/kpp: add code to have mixing in shelf ice caverns
448      - add myThid to all kpp routines (long overdue)
449    
450    checkpoint59
451    o pkg/exf:
452      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
453        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
454      - move exf header files from lower_case.h to UPPER_CASE.h ;
455        add missing cvs Header & Name
456      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
457      - add namelist param. selectStressGridPosition, exf_monFreq
458      - retire many _CLIM routines, and remove data.exf_clim
459        + params moved to data.exf
460        + climsst, climsss now handled by exf_set_gen, i.e.
461          climss?period=0 refers to constant field,
462          climss?period=-12 to monthly forcing
463      - split up namelists in data.exf
464    o pkg/seaice:
465      - remove seaice_exch and seaice_exch_uv
466      - remove superfluous exchange of theta
467      - add myThid to seaice_budget_ocean/ice
468      - add new interface for atmospheric wind forcing (C-grid only)
469        + new routine
470        + two new field (taux, tauy for stress over ice)
471        + removed one global field (DAIRN) for C-grid case only
472    o pkg/thsise
473      - 2nd set of modifs for thsice adjoint in conjunction with exf
474    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
475    
476    checkpoint58y_post
477    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
478      vertical diffusivity, similar to that in MOM4; turned on using
479      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
480      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
481    o Added capability for 3D specification of background vertical diffusion
482      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
483      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
484      "data" file that contains the 3D vertical diffusivity coefficients.
485    o ice dynamics (pkg/seaice) with thsice thermodynamics:
486      - add code within pkg thsice to advect & diffuse sea-ice fields
487      similar to (and will replace) what has been added in  seaice_advdiff.F,
488      but: - conserving Mass, Heat & Salt.
489           - better when using non-linear advection scheme (not yet fully tested)
490           - can also be used in atmospheric set-up (for now, only the diffusion).
491    
492    checkpoint58x_post
493    o IO option for global-file compact format:
494      - add options when generating topology (utils/exch2/matlab-topology-generator)
495      - add I/O capability (pkg/mdsio).
496      - adapt utils/matlab/rdmds.m to read this format.
497      for now long-line format not yet supported by pkg/mdsio (& exch2).
498    o shelfice: add a few diagnostics
499    
500    checkpoint58w_post
501    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
502      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
503      (and replace horiVertRatio in NH code).
504      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
505                         and tutorial_plume_on_slope (sensitive to truncation)
506    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
507      directly to drive seaice model (C-grid only)
508    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
509     - reintroduce computation of wind from stress,
510     - compute tau (in exf_bulkformulae.F) from windstress averaged to
511       mass points to avoid tau = 0
512     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
513    o rdmnc.m: make it work with "global" files created with gluemnc
514    o rdmnc.m : some improvements in dealing with singleton dimension
515      (tested on all testreport mnc output files).
516    o genmake2: disable pkg/profiles if netcdf test fails.
517    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
518    o move call to cal_readparms up to make calendar parameters/variable available
519      to all packages
520    
521    checkpoint58v_post
522    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
523      useDynP_inEos_Zc tested.
524    o pkg/exf: changes to properly interpolate/mask/scale initial fields
525    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
526      and portions thereof.  See read_cs.txt for description and examples.
527    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
528      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
529      following the great-circle arc between those 2 points.
530    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
531      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
532    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
533     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
534     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
535     - still needs work (not working with some options ; efficiency to improve)
536       and serious testing.
537     - use this scheme for temperature & salinity in 2 advection test exp.:
538       advect_xy & advect_xz, respectively.
539    
540    checkpoint58u_post
541    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
542    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
543    o testreport: add option "-skipdir" to skip some test.
544    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
545      momentum calculation.
546    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
547    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
548      remove checkpoint.F and the_correction_step.F (no longer used);
549      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
550    o add option (linFSConserveTr) to correct for tracer source/sink due to
551      Linear Free surface
552    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
553    o pkg/thsice: fix reading mnc-pickups
554    
555    checkpoint58t_post
556    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
557    o pkg/mdsio:
558     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
559       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
560       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
561     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
562     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
563       either MDS_READ_FIELD or MDS_WRITE_FIELD )
564     - new S/R (to replace MDSWRITEMETA), which allows to write more
565       informations (variable names, time ...) to meta files.
566     - modify rdmds.m to give back the meta file content.
567    o pkg/diagnostics: change vertical interpolation to be safer, and more
568       flexible (define p-levels to interpolate to in data.diagnostics);
569      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
570       diagnostic pointer.
571    o pkg/seaice: more cleaning up of seaice_growth, added many comments
572    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
573    o fix multi-category seaice:
574     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
575       SEAICE_MULTICATEGORY
576     - fix short wave heat flux
577    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
578       and allow to use EVP solver. Change forward lab_sea: test both EVP
579       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
580    o Initial check-in of lab_sea adjoint
581      (very similar to natl_box_adjoint/code_seaice)
582      * used C-grid and EVP solver
583      * used KPP, GM/Redi
584      * uses inAdExact=.TRUE.
585      * gradient checks fail for both ADM and TLM
586        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
587        f.d. gradients actually seem more problematic than ADM, TLM gradients;
588        issue is related to forward mismatch between g77 an ifort
589    o pkg/seaice: overhaul of thermodynamics
590     - growth.F and groatb.F are replaced by new routine seaice_growth.F
591     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
592     - move a few global fields out of SEAICE.h into seaice_growth.F and
593       make them 2D (FICE/QNETO/ ...)
594     - remove FO (it is the same as QNETO)
595     - introduce a few local fields to avoid modifying external fields such
596       as atemp, etc.
597    
598    checkpoint58s_post
599    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
600      changed exf_set_gen.F so that
601        genperiod=0 means input file is one time-constant field and
602        genperiod=-12 means input file contains 12 monthly means
603    o CG2D: use pre-computed solver main-diagonal (stored in common block);
604      this affects truncation error ; generate new output file for exp. which
605      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
606        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
607        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
608        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
609        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
610        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
611    o start implementation of deep-atmosphere and anelastic formulation
612    o verification: remove 2nd copy of input files and use script "prepare_run"
613      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
614    o mom_common/vecinv/fluxform: fix a few initialisation isssues
615    o profiles: fix for multithreaded case
616    
617    o diagnostics: rename few diags:
618      s/'PRESSURE'/'RCENTER '/g
619      s/'TICE    '/'oceFreez'/g
620      s/'TAUX    '/'oceTAUX '/g
621      s/'TAUY    '/'oceTAUY '/g
622      s/'SWFLUX  '/'oceQsw  '/g
623      s/DIFx/DFxE/g
624      s/DIFy/DFyE/g
625      and add few ocean-forcing diagnostics:
626      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
627    o modifications to pkg/seaice/growth.F and budget.F, which change results of
628      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
629      as actual snow thickness.  It now refers everywhere to effective snow
630      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
631    
632    checkpoint58r_post
633    o modifications to pkg/seaice/growth.F, which change results of
634      lab_sea experiment: fixes pertain to melting snow over open water, to
635      masking EVAP under sea ice, and to using the correct AREA variable for
636      computations of EVAP, PRECIP, HSNOW, and GHEFF
637    o add ability to read bathy, salt, and theta using MNC (off by def)
638    o add flooding algorithm and advection of HSNOW for pkg/seaice;
639      both are turned off by default and do no change any results
640    o seaice advection with pkg/thsice: a step toward the use of non-linear
641      advection scheme, but #ifdef or commented out for now (requires more EXCH).
642    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
643      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
644      in natl_box (affects results @ truncation level: update output.txt)
645    o multi-threading and IO:
646      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
647      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
648        (needed to work with SingleCpuIO): tested in all verif. exp.
649    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
650      affects the results (but none of the verification test uses this scheme).
651    o Adding some pkg/diagnostics capability to pkg/seaice
652      (will certainly be subject to changes)
653    o ctrl: adding new control variables:
654      lwflux, lwdown, evap, snowprecip, apressure, runoff
655    
656    checkpoint58q_post
657    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
658      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
659      high_res_cube configuration by 4% on Columbia.
660    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
661      add (in global_with_exf/code) a version of EXF_INTERP_READ without
662      dynamical allocation (seems to work in multi-threaded).
663    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
664      single CPU io) so that TAF does not have to see EESUPPORT.h
665    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
666    
667    checkpoint58p_post
668    o obcs: stop if obcs is used with useCDscheme = .true.
669    o shelfice:
670     - fix a sign error so that no slip at shelfice interface works
671     - remove stop for combination non-hydrostatic code and shelfice. That does
672       not mean, that the results are correct, but at least they are numerically
673       stable
674    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
675    o added adjoint exch routined for all exch*3d* routines
676      and updated flow directives
677    
678    checkpoint58o_post
679    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
680      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
681    o change controling S/R for writing pickup file (new S/R do_write_pickup)
682      and clean-up reading/writing of pickup files.
683    o fix local version of read/write pickup (NH part) in rotating_tank/code
684    o simplify EXCH interface:
685     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
686     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
687    o added the regrid package
688    o shelfice:
689     - add a simple boundary layer scheme to reduce noise
690     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
691    
692    checkpoint58n_post
693    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
694       local variable (not in common block).
695    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
696      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
697      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
698        to work with SingleCpuIO.
699    o add "_d 0" to real constant of pkg/cfc subroutines ;
700       update exp. cfc_exemple & tutorial_cfc_offline output files.
701    o multi-threading and IO:
702      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
703        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
704      - barrier before and after reading.
705      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
706      - avoid using MDS_WRITELOCAL for LAND pkg output.
707      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
708        common-block variables ; Allows multi-threading with master-thread IO.
709    o change default MAX_NO_THREADS from 32 to 4 ;
710      and stop cleanly when MAX_NO_THREADS is too small.
711    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
712    
713    checkpoint58m_post
714    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
715       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
716    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
717       keep global_ocean.90x40x15 (for AD testing) with former secondary test
718       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
719    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
720        add MITgcm_tutorials (= code + all the tutorials)
721    o ecco, option to compute cost for total ssh (mean+anom)
722    o consistent with addition of ptracer and ssh in pkg/profiles
723    o profiles: adding ptracer and ssh
724    o testreport: change multi-test output-file name
725      (from output.txt.{name} to output.{name}.txt)
726    o profiles: now ok for mutli-tiles case
727    o seaice: add 4 parameters for different advection schemes for area,
728      (effective) seaice thickness, enthalphy, and snow height. Their default
729      is the standard parameter SEAICEadvScheme
730    o calc_gw:
731     - add cosFacU in zonal viscous flux (harmonic.visc.).
732     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
733       of tutorial_plume_on_slope.
734    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
735    o calc_gw: true flux-form, account for horizontal grid spacing.
736      update rotating_tank results, but not plume_on_slope (affected at
737      truncation level, 11 digits).
738    
739    checkpoint58l_post
740    o calc_gw:
741     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
742     - remove side-drag for now (need to fix it); update plume_on_slope results.
743     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
744    o commit code to make SST/SSS weights spatially variable
745      (based on either variable in-situ or variable initial T/S weights)
746    o pkg/ecco:
747      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
748        now based on horizontally varying weights wthetaLev, wsaltLev
749      * cost_averagesflags now returns year indices in addition to day, month
750      * sflux balance is performed on annual basis
751        (sflxumm, sfluxmm2, bal_sfluxmm)
752      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
753        including separate counting and multipliers
754    o pkg/rbcs
755      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
756    
757    checkpoint58k_post
758    o testreport:
759     - always build in dir. "build" (if not there, mkdir build instead of building
760       & running in input)
761     - run in dir run (if it exists), in build otherwise.
762     - call prepare_run (if input/prepare_run exists)
763     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
764    o pkg/exf modifications to interpolation and rotation routines for more
765       reasonable treatment of North Pole singularity: for tracers North Pole
766       value is set to northernmost zonal-mean value, for zonal velocity it is
767       set to zero, and for meridional velocity it is set to northernmost value.
768    o pkg/exf/exf_check_range.F
769     - add tile index to diagnostics and move stop statement to the very
770       end of the routine.
771    o pkg/diagnostics: (diagnostics_main_init.F)
772      define title of isomorphic variables according to the current config.
773    o pkg/thsice with pkg/seaice dynamics:
774    - fix domain of computation (interior only, required for exf) and do exchanges
775    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
776    o towards a standard way of dealing with multi-threading in MONITOR
777      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
778    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
779       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
780    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
781    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
782    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
783       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
784    o tracer advection:
785     - clean-up and simplify calc_common_factors.F
786     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
787       advection subroutine (but still not used within DST advection S/R)
788    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
789    
790    checkpoint58j_post
791    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
792      from file (collects calls previously in FORWARD_STEP)
793    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
794    o adjoint store dir. adjusted accordingly
795    o genmake2
796      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
797    
798    checkpoint58i_post
799    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
800      on wind stress (SEAICEstressFactor defaults to 1.)
801    o Total number of Timers is finite (<=40): comment out 2 non-essential one
802      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
803    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
804      on CS-grid: no longer loosing mass.
805    o exf & curvilinear-grid: no longer modify longitude xC & xG.
806    o pkg/ggl90: fix sloppy output and fix a bug
807    o pkg/seaice: added SEAICEuseEVPpickup parameter
808      - Set to false in order to start EVP solver with
809        non-EVP pickup files when using SEAICEuseEVP
810      - fix sign error in diffusion in seaice_calc_rhs
811    
812    checkpoint58h_post
813    * Modifications for bottom topography control
814      o replace hFacC by _hFacC at various places
815      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
816      o add non-self-adjoint cg2d_nsa
817      o update autodiff support routines
818      o re-initialise hfac after ctrl_depth_ini
819      o works for 5x5 box, doesnt work for global_ocean.90x40x15
820    * Adding verification for 5x5 box (4-layer) bottom topography control
821    
822    checkpoint58g_post
823    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
824       used for mean seasonal cycle, mean diurnal cycle); add an example
825       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
826    o pkg/ggl90:
827      - add parameter (minimum surface kinetic energy)
828      - fix bug (avoiding division by zero)
829    o couple pkg/thsice to pkg/seaice:
830      - modify advection in seaice to accomodate new scalar fields to be advected
831      - only muliDimAdection scheme work with seaice/thsice
832      - mapping of thsice-variables to seaice-variables, back and forth
833      - does not break the verification experiments, but does not give the
834        desired results either
835    o pkg/seaice
836      - make (default) second order advection a bit less confusing?
837    
838    checkpoint58f_post
839    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
840      to pkg/seaice):
841      - new routines thsice_map_exf and thsice_get_exf provide the interface
842      - add an additional formal parameter to thsice_solve4temp
843    o pkg/exf:
844      - add new fields wspeed, snowprecip (to be able to couple to thsice)
845      - correct Stefan-Boltzmann constant
846      - new parameter for longwave surface emittance
847      - separate some stuff from exf_bulkformulae into new routines  
848        exf_radiation, exf_wind
849      - add new parameters and constants: longwave emissivity for ocean, ice
850        and snow, evaporation parameters over ice
851      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
852        either wind from stress or stress from wind
853    o pkg/thSIce:
854    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
855    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
856       and THSICE_CALC_THICKN
857    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
858    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
859      to make debugging easier.
860    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
861    o pkg/bulk_force:
862      - clean-up comments and parameters ;
863      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
864    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
865      generate new output for test-experiment: aim.5l_cs.thSI
866    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
867      testreport accordingly
868    
869    checkpoint58e_post
870    o SEAICE_CGRID adjoint done
871    o R_STAR adjoint implemented.
872      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
873      * need to sort out init. of h0facc, etc.
874    o Make pkg/profile fully independent of ecco,cost, etc. stuff
875      to be able to use it in pure forward.
876    
877    checkpoint58d_post
878    o upgrade simple test-experiment to tutorial example:
879     step.1: duplicate the experiment and (step.2) will remove the old copy.
880      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
881      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
882      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
883      tutorial_global_oce_biogeo    <- copy of dic_example
884      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
885      tutorial_plume_on_slope       <- copy of plume_on_slope
886      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
887      tutorial_global_oce_optim     <- empty for now (David ?)
888      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
889     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
890    o correct a sign problem in cost_scat.F
891    o obcs and ptracers: fix boundary conditions for advections schemes
892      with larger stencil
893    o thsice adjoint: start
894    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
895      completeness
896    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
897      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
898    o ptracers adjoint:
899      * avoid extensive recomputatations
900      * fix missing re-init. of gptr (missed by TAF)
901    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
902      me to turn off the excessive output to STDOUT that this package produces
903    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
904      and add those terms in Vector-Invariant formulation.
905    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
906      if the control period (xx_hfluxperiod etc) is 0
907    o in profiles pkg, clean routines and fix details
908    o in ecco pkg, reading ssh data:
909      fix problem in case the model does not start at iter0=0
910    o fix mnc-pickup/restart for ptracers
911    o new package prifiles:
912      code to compute profile-based cost by Gael Forget
913      (modifs in ecco, ctrl, autodiff)
914    o Benign bug fix in initialization (spotted by M. Mazloff) of
915      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
916    
917    checkpoint58c_post
918    o adjoint: finish NLFS adjoint and provide reference output in
919      verification/global_ocean.90x40x15/results_ad_nlfs
920    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
921      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
922      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
923      with SEAICE_CGRID defined.
924    o move calendarDumps from "data" to "data.cal" and clean-up the code
925      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
926    o add useEXF & useCAL flags (for now, set in hard-coded way)
927    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
928      (were missing in NH mode, and wrong in quasihydrostatic mode).
929      waiting for Chris updated version of calc_gw to add those CALLs.
930    o fix bug in quasihydrostatic S/R ;
931      add a test for this option: global_ocean.90x40x15.qshyd
932    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
933      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
934    o add on/off flag useOffLine for package OFFLINE
935    o seaice:
936      - modify advection so that it works also on the C-grid
937      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
938        problem in multi-tile runs with C-grid
939      - add flags for clipping ice velocities and/or masking solver forcing
940      - fix drag (ocean on ice) formulation and a bug that caused noise in the
941        C-grid solver
942      - added a few comments to seaice_diffusion.F
943      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
944        are now exclusive)
945      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
946        required re-ordering the code a little:
947       + make DAIRN global variable (defined in SEAICE)
948       + move computation of the viscosities eta and zeta into a new separate
949         routine (because I need to recompute them in seaice_ocean_stress.F)
950    
951    checkpoint58b_post
952    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
953      update output.txt of exp. aim.5l_cs.thSI
954    o various mnc cleanups and improvements:
955      + shrink lookup tables by factor of ~4
956      + better error reporting when running out of lookup space
957      + able to handle longer path/file names (up to 500 chars)
958    o adjoint:
959      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
960      - TBD: "hidden" mom_vecinv recomp. in dynamics
961    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
962     (allow to differentiate between forcing components using new integer flags:
963      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
964     and add new flag to put Dissipation tendency out of Adams-Bashforth.
965    o ecco
966      - enable trend removal from SSH anomaly obs.
967    o adjoint
968      - a fix for PmEpR when #undef EXACT_CONSERV
969      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
970      - try to fix "hidden" recomp. in forward_step for NLFS
971        (NLFS seems broken sometimes after I checked it in)
972    o seaice:
973     - add c-grid version of the dynamic solver:
974       + three new routines that are the c-grid substitute lsr, dynsolver
975         and ostres
976       + put a few fields that were local to dynsolver into global common
977         blocks, so that I can move the computation of stresses etc into
978         seaice_lsr (saves coding but may break the adjoint).
979     - replace more hardwired parameters by runtime parameters
980     - add ice masks that mask the rhs of the implicit solvers where there
981       is no ice (commented out in seaice_dynsolver, because i am not sure
982       if this works properly), eventually this should replace the clipping
983       of ice velocities in seaice_dynsolver to +/-40cm/s.
984    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
985      include it only where its needed
986    o move balancing of fluxes before the call of external_forcing_surf
987    o seaice:
988      - correct units of turning angles (now they are really in degrees)
989      - move computation of GWATX/Y out of main routine into dynsolver
990      - initialize GWATX/Y in seaice_init
991    o Apply mask on Fresh-Water flux (needed for SSH forcing).
992      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
993    o seaice: add runtime flags for turning angles (default to zero)
994    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
995      and trend from exf forcing and ctrl control adjustments
996    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
997      (since checkpoint57x_post)
998    o change the default rotation period to 86164.s = the Earth rotation
999    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1000      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1001    o seaice advection: add code for choosing between the default (2nd order
1002      central differences) and multiDim advection schemes provided by
1003      pkg/generic_advdiff
1004    o seaice:
1005      - removed all references to SEAICE_GRID.h fields from
1006        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1007        (cubed-sphere configuration will change a little)
1008      - grid computations in seaice_init are obsolete now.
1009      - cleaned up code a little so that is easier to read (hopefully).
1010      - added new (better?) discretizations of default advection and diffusion
1011        (turn on with SEAICEuseFluxForm)
1012      - replace 1 in 3d global fields by kSurface in growth.F
1013      
1014    checkpoint58a_post
1015    o seaice:
1016      - bug fix in advect.F
1017    o shelfice:
1018      - separate shelfice load anomaly from pload (breaks with time
1019        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1020        Its default is 0., but it may be computed more cleverly from (unknown)
1021        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1022        done offline. A good approximation of the pressure load anomaly is
1023        necessary to avoid large initial adjustment processes underneath
1024        deep-reaching shelfice.
1025      - small fix in ISOMIP shelfice_thermodynamics
1026      - add more sophisticated thermodynamics of Hellmer (1989), this is
1027        now the default
1028      - give a few constants more intuitive names
1029    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1030      if bulk formulae are used in long integration (especially EmPmR). Turn
1031      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1032      if balancePrintMean, the imbalance that is substracted is printed to
1033      STDOUT.
1034    o fix bug (typo) in obcs_apply_eta.F
1035    o add a new package shelfice which enables us to model the circulation
1036      underneath shelf-ice with draughts of hundreds of meters.
1037     - works
1038     - to do: + include improved thermodynamics
1039              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1040                instead of new field kTopC
1041              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1042                instead of new field R_shelfIce and new code in ini_depth.F
1043                and ini_mask_etc.F?
1044              + adjust vertical mixing schemes?
1045    o seaice pkg:
1046     - add a cpp-flag to include a simple formula for a salinity dependent
1047       freezing point of sea water at the surface
1048     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1049       meridional stresses are now different (and hopefully correct)
1050    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1051       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1052       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1053    o pkg/diagnostics: add options and parameters for regional-statistics
1054       diagnostics ; define regions by reading a region-mask from a file
1055       (might add other options later)
1056    o pkg/bulk_force:
1057     - add option and parameters to use AIM surface-flux formulae.
1058     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1059       others forcing fields (defined in PARM05, parameter file "data") are loaded
1060       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1061     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1062     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1063     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1064       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1065     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1066    
1067    checkpoint58
1068    o add "--embed-source" option to genmake2 which, when the supporting
1069      tools can be compiled (as determined by genmake2) will turn on the
1070      embed_files package which then embeds the entire MITgcm source code
1071      (*.[fFhc] + Makefile) used for the build within the executable
1072      - requested by CNH but off by default
1073      - adds a paltry <9MB to the mitgcmuv executable in most cases
1074      - only writes the output when useEMBEDSRC in eedata is true
1075    o clean up 3-dim. relaxation codes:
1076      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1077      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1078      * Thanks to Tom Haine for testing!
1079    
1080    checkpoint57z_post
1081    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1082      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1083    o fix the pickup behavior for obcs in combination with ptracers
1084    o fix a bug in ptracers_external_fields_load
1085    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1086      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1087    o transfered surface NH pressure to eta field (if exactConserv).
1088    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1089         and update lab_sea output.txt file.
1090    o completing 3-dim. relaxation code: additional term
1091         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1092      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1093      * At compile time, in "EXF_OPTIONS.h" set
1094          #define  ALLOW_CLIMTEMP_RELAXATION
1095          #define  ALLOW_CLIMSALT_RELAXATION
1096      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1097          tauThetaClimRelax3Dim = 15552000.0,
1098          tauSaltClimRelax3Dim  = 15552000.0,
1099      * 3 cases:
1100          1) Use a constant-in-time 3-dim. field
1101          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1102          3) Real-time relax. to time-evolving prescribed field
1103    o Adding Laplacian-type smoothness constraint on
1104      initial and boundary (forcing) controls (ic, bc)
1105      * enable at compile-time via
1106        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1107      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1108      * Absolute scale somewhat unclear so far
1109      * no area weighting was included since no other cost term does so far
1110    
1111    checkpoint57y_post
1112    First step for a NLFS adjoint
1113    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1114    o new init. routines for calc_r_star, calc_surf_dr
1115    o still need to deal with ini_masks_etc
1116    o testreport seemed happy
1117    checkpoint57y_pre
1118    
1119    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1120    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1121    o add new offset feature to offline pkg (plus minor cleanup)
1122    o cfc fixes for final year of integration
1123    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1124      be in GCHEM_OPTIONS).
1125    
1126    checkpoint57x_post
1127    o fix testreport Pb in multiple test experiment.
1128    o cleanup our namelist syntax in verification:
1129      - make it more F95 standards compliant (some work still needed)
1130      - allows the vast majority of our tests to work with gfortran
1131    o Non-Hydrostatic:
1132     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1133     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1134    o Allow to apply AB on T,S rather than on AB(gT,gS):
1135     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1136     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1137       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1138     - need a "clever" read_pickup to restart from the other AB formulation
1139    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1140    o remove some unused variables (reduces number of compiler warnings)
1141    o adjoint
1142      * Disable useVariableViscosity for adjoint for time being
1143        (there are a number of extensive recomputations)
1144      * Initialize certain variables needed for adjoint
1145    
1146    checkpoint57w_post
1147    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1148                 fix the singleCpuIO RS version of MDSWRITEFIELD
1149       and add a WARNING if using globalFiles=T with multi-processors.
1150    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1151      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1152    o tracer advection scheme:
1153      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1154       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1155       was not very convenient).
1156      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1157       (further tests needed for the implicit DST & Flux-Limiter schemes).
1158    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1159      and sRef for convenience, handy, when you want to initialize
1160      ptracers in a large domain with a constant non-zero value. Also,
1161      untangle ptracers_init.F a little.
1162    
1163    checkpoint57v_post
1164    o change dome exp. to use variable viscosity in side-drag terms.
1165    o remove all the files from the cfc_offline test since they are now
1166      incorporated into tutorial_cfc_offline which has been producing
1167      identical results for a few days of testing
1168    o add new parameter: sideDragFactor to enable half-slip-side BC
1169      and change side-drag S/R to use viscosity from mom_calc_visc
1170      (can switch back by setting sideDragFactor=0.); affects results at
1171      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1172       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1173    o vorticity & strain are now computed without masking, to account for
1174      no-slip-side BC in variable viscosity calculation ; mask is applied
1175      anyway later on, before computing advection/coriolis terms.
1176    o modify exp4 to test new obcs support for reading from external files
1177      and for passive tracers
1178    o fix behavior of ptracers_monitor when monitor output is written to a
1179      netcdf-file; still not independent of monitor.F (writes in the same
1180      file).
1181    o change default value of tRef (put a uniform, meaningful value for ocean
1182      & atmos) and initialize sRef (was missing, as Martin mentioned).
1183    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1184      to be proportional to enstrophy dissipation length.  Thus,
1185       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1186      This is now consistent with Smagorinsky and with the manual.
1187    
1188    checkpoint57u_post
1189    o OBCS and PTRACERS: add open boundary support for passive tracers
1190      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1191        OB-values from file; this is not different from the way theta and salinity
1192        are treated
1193      - however, Orlanski-radiation conditions are not supported, and the model
1194        will stop if you use pTracers and Orlanski at the same time.
1195      - beefed up the rountine obcs_external_fields_load: now only those open
1196        boundary values are overwritten with values from files for which there
1197        are really files, otherwise the OB-fields remain untouched. This makes
1198        it possible to use different OBs at different ends of the domain (as
1199        with EXF)
1200    o reduce number of exch calls in shap_filt (s2).
1201    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1202      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1203    
1204    checkpoint57t_post
1205    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1206    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1207      same truncation, independent of the face number: affects affects several
1208      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1209    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1210      note that biharmonic viscosity + no-slip was not tested in any experiment.
1211    o fix bug in non-linear free-surf side-drag ; generate new output for
1212      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1213    o make mnc honor the writeBinaryPrec flag for most kinds of output
1214    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1215    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1216      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1217    o add brackets in multi-terms sum to get same truncation, independent of
1218      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1219      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1220    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1221      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1222      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1223      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1224      Suggested values of viscosity parameters found in mom_calc_visc.
1225      Many new viscosity diagnostics available.
1226    
1227    checkpoint57s_post
1228    o Add clearing-house for viscosity calculations, mom_calc_visc and
1229      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1230      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1231      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1232      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1233      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1234      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1235      ViscAhStrain and viscAhTension are now retired.
1236    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1237    o In response to JMC's bug report, genmake2 now ignores any soft-links
1238      that it finds in the *current* directory when searching for files.
1239      Soft-links found in any other source directories will still work as
1240      they did before.
1241    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1242      a C routine to unlimit the stack size
1243    o mnc-ify pkg/aim snapshot vars
1244    o mnc-ify pkg/land as requested by Daniel
1245    o various changes to mnc including:
1246      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1247      - output can now be grouped so that all files within a group
1248          change the ITER portion of their names in lock-step together
1249      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1250          and works with both EXCH1 and EXCH2 (but needs more testing)
1251      - writing works for all verification test cases w/ g77 on Linux
1252    
1253    checkpoint57r_post
1254    o make MNC variable initialization happen earlier
1255    o add diagnostics for (almost) each term of the momentum Eq.
1256    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1257    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1258    o remove MINIMAL_TAVE_OUTPUT option ;
1259      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1260    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1261      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1262    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1263    o add time-dependent SST, SSS control
1264    o cost terms in ecco/ modularized (new cost_generic.F)
1265    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1266    o new infrastructure for seaice model vs. obs misfits in seaice/
1267      * driver from the_main_loop.F is seaice_cost_driver.F
1268      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1269      * gradient check in Exp. 6a of natl_box_adjoint/
1270    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1271      (see README file)
1272    
1273    checkpoint57q_post
1274    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1275    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1276      - bug was reported by Jean-Michel and Ian Fenty
1277    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1278      update exp. cpl_aim+ocn output.
1279    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1280      Needed for high-res. runs with large global files
1281      to be able to limit tapelev size
1282    o Changed some tests for adjoint:
1283      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1284      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1285      * global_ocean.90x40x15/ back to default 3-level checkpointing
1286    o Modifications to enable scripted COMMON to MODULE conversion
1287      * verification/OpenAD/code/ has necessary scripts and description;
1288      * converts, compiles and runs successfully;
1289    
1290    checkpoint57p_post
1291    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1292    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1293      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1294    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1295    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1296      (was already the case for dissipation with mom_vecinv,
1297       and also the case for grad.PhiHyd when staggered-timeStep)
1298      This will allow to put dissipation out-off the AB time-stepping.
1299     Unfortunately, affects truncation error. Update output of exp. that "fails"
1300      (cg2d matching number) and leave the others for later: front_relax(10),
1301      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1302      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1303    
1304    checkpoint57o_post
1305    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1306      (2) its ready to be documented during the 20050801 DocFest
1307    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1308      for ideal_2D_oce and lab_sea on linux_ia32_g77
1309    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1310      in global1x1_tot/code_seaice_adj to access indices 32, 33
1311      (worth another tag)
1312    
1313    checkpoint57n_post
1314    o adding precip control xx_precip 32
1315    o adding swflux control xx_swflux 33
1316    o Replacing 10 forcing penalty cost routines by 1 generic.
1317    o Implementing partitioning in time-mean and variable adjustment
1318      for atmos. state.
1319    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1320  o in natl_box_adjoint:  o in natl_box_adjoint:
1321    * updated: results_bulk/    * updated exp 1 to 10
1322    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
1323    o updated global1x1/*_seaice_adj/
1324      to incorporate latest changes
1325    o enable useSingleCpuIO for mdsio vector routines
1326      (applies in particular to tapelev I/O)
1327    o removed inefficient K-loop in all active_file*control*.F
1328    
1329  checkpoint57m_post  checkpoint57m_post
1330  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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