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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.1046 by jmc, Wed Dec 3 02:45:22 2008 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/flt:
8  o moved ptracer ctrl index 17 -> 32    - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
9       + make OPTIONS file more standard.
10      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
11      - fix _BYTESWAPIO CPP-Flag
12      - standard reading of file-parameter "data.flt"
13      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
14    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
15    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
16      a still unfixed compiler/optimization bug
17    
18    checkpoint61f
19    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
20      update results of global_ocean.cs32x15.icedyn test.
21    o move getcon.F from model/src to pkg/fizhi.
22    o pkg/exf: add parameter for extrapolation of temp up to the surface
23       and option to prevent negative evap (in bulk_largeyeager04 only).
24    o Prather Advection scheme: fix tracer conservation for divergent flow
25      (e.g., when using NonLin Free-Surface).
26    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
27    o gmredi (Visbeck-variable-K):
28     - add more parameters to Visbeck-variable-K.
29     - use a 5 points average for dSigmaR in Visbeck-K calculation
30       (more "homogenous": same stencil and same weights as in dSigmaH)
31     - update output of ideal_2D_oce experiment.
32    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
33      (#undef REAL4_IS_SLOW)
34     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
35       coordinate variable
36     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
37       (surface forcing fields), removes some of the functionality
38     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
39     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
40       probably not all: copy _RS surface flux fields to RL field before
41       calling DIAGNOSTICS_FILL
42     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
43       real*4 (CALL EXCH_*_RS) versions.
44     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
45       (generate new output).
46    
47    checkpoint61e
48    o gmredi (Visbeck-variable-K):
49      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
50      - change computation of Visbeck-K where Slope > Smax :        
51        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
52        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
53    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
54      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
55    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
56    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
57      does not become too large (to avoid precision problems in implicit-diffusion
58      solver); update ideal_2D_oce output.
59    o pkg ggl90:
60      - in ggl90_cal.F: compute only one set of visc/diff, used to
61        step forward TKE/T/S/momentum
62      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
63        have Prandlt =1)
64    o gmredi (fm07):
65      - add lower limit on Transition layer thickness + lower limit on 1/lambda
66      - allow to set few more params from data.gmredi
67    o pkg ggl90:
68          - add missing sqrt(2) factor in computation of mixing length
69            scale in ggl90_calc.F
70            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
71    
72    checkpoint61d
73    o adjoint modifs
74      - adapt to new field rhoInSitu
75      - allow to revert from StoreDynVars2D, StoreDynVars3D
76        to individual fields
77        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
78    o store 3-D (in-situ) density in commom block (DYNVARS.h)
79     - save 1 rho computation.
80     - no longer modify T & S inland when using down_slope pkg.
81    o gad_som : allow to switch to SOM advection for T & S without corresponding
82      pickup files (using new S/R: MDS_CHECK4FILE).
83    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
84      (for useSingleCpuIO to work in multi-threaded)
85    o pkg/shelfice:
86     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
87       with SHELFICEtopoFile in data.shelfice
88     - move code for reading ice shelf topography and modifying hFacC into separate
89       subroutines of the shelfice package
90     - separate initialisation of "fixed" and "variable" variables
91     - kTopC is not (yet) replaced by kSurfC, although this is possible
92    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
93    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
94      and rename:
95      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
96      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
97    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
98    
99    checkpoint61c
100    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
101      to add mass source/sink of fluid in the interior (3-D generalisation
102      of oceanic real-fresh water flux).
103    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
104    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
105    o new pkg: down_slope
106      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
107      - presently, modify T & S inland (dwnslp_calc_rho.F).
108        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
109      - implementation for ocean in P-coords not tested.
110      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
111    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
112      (to facilitate conversion of oceanic pkg to p-coordinate).
113    o change FIND_RHO to FIND_RHO_2D :
114      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
115    o new pkg: cheapaml
116    
117    checkpoint61b
118    o exch2:
119      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
120      - no longer depend on the order sequence (N,S,E,W).
121      - 3rd exchange no longer needed (tested with 24 tiles).
122      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
123      - exch_UV_A-grid readily available (but not yet tested).
124      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
125      (both are no longer needed) in exch_uv: no effect in forward run; but
126       get truncation error differences with adjoint exch.
127    o exch2:
128     - change index-bounds storage (moved from target to local tile,
129       more intuitive this way) ; rename/remove some variables.
130     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
131    
132    checkpoint61a
133    o exch2/matlab-topology-generator:
134      fix bug in index bounds for N-S internal exchange (hard to tell if this
135      had any effect on the solution).
136    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
137      is exceeded
138    o testreport: modify syntax of awk, so that it works also with
139      awk, and not only with nawk and gawk
140    
141    checkpoint61
142    o autodiff
143      Change default for TAF usage by removing argument '-nonew_arg'
144      This changes TAF subroutine argument list (ordering of active var.)
145      Omission of this flag leads to incompatibility w.r.t. TAMC
146      To restore TAMC-compatibility, need following modifs:
147      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
148      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
149      Tested TAF version is 1.9.22
150      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
151    
152    checkpoint60
153    --->>> This is the last checkpoint for which generating the adjoint
154    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
155    --->>> by default.
156    --->>> Future checkpoints will ommit this flag by default.
157    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
158    o pkg/grdchk: Add gradient check to etan0 perturbations.
159    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
160    o pkg/autodiff: more flexibility in zeroadj.
161      model/src: modifying do_oceanic_phys.F accordingly.
162    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
163    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
164      special setup of gmredi for which the adjoint is stable
165      enough for parameter optimization.
166    o bridging the gap between eddy stress and GM.
167      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
168          along with a change in CPP option (now ALLOW_EDDYPSI).
169      -> when using GM w/ GM_AdvForm:
170          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
171          is applied either in the tracer Eq. or in momentum Eq.
172          depending on data.gmredi (intro. GM_InMomAsStress).
173      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
174      The key modifications are in model/src/taueddy_external_forcing.F
175      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
176    
177    checkpoint59r
178    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
179      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
180      fix option to read coriolis(@ cell-corner) from files with CS-grid.
181    o pkg/mnc: add some attributes to standard 1D-coordinate variables
182    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
183      mass points, when using mnc for output
184      - add runtime parameter (missing_value, missing_value_int) to override
185        default (which is the value of getcon('UNDEF'))
186    o pkg/mnc: prepare mnc for the actual use of missing values with the
187      diagnostics package: small fix in mnc_cw_readwrite.template and more
188      initialisation of never used fields
189      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
190      versions
191    o pkg/thsice/thsice_ini_vars.F added default initial values so that
192      thermodynamics sea ice solver does not blow up when some initial fields
193      are missing.
194    o move from external_forcing_surf.F to ini_forcing.F
195      the p-coord. hack consisting in using pLoad to set phi0surf ;
196      update output of tutorial_global_oce_in_p (affected @ truncation level).
197    o Freshen up a bit hs94.1x64x5, notably:
198      remove rotationPeriod and tRef=5*0. (adjoint only), and add
199      exactConserv=.TRUE.
200    o pkg/generic_advdiff:
201      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
202      applies to files where Temperature & Salinity 2nd Order moments are used.
203    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
204      this uses a dynamically allocated internal state data structure
205      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
206      and requires a fortran 90 compiler
207    
208    checkpoint59q
209    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
210       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
211    o Refresh tutorial_global_oce_biogeo, notably:
212      - change bathymetry (put back seamounts in ACC, use hFacs)
213      - change EOS (POLY3 --> JMD95Z)
214      - use Bryan-Lewis vertical diffusivity
215      - use multidimensional advection
216      - remove old virtual virtual in dic pkg, now done through ptracer pkg
217      - change a couple of parameters in dic pkg
218    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
219    o pkg/obcs: change default to OBCSfixTopo = .true.,
220      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
221      - replace "debugMode" with "debugLevel .GE. debLevB"
222    o implementation of TAF directives for gchem,cfc,dic
223    o remove "exp5" (replaced by tutorial_deep_convection).
224    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
225      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
226      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
227      --> changes results in exp4, seaice_obcs
228    o tutorial_deep_convection :
229      update the set-up and increase resolution and domain size ; start
230      from pseudo initial conditions = output at t=120mn in order to see
231      something happening when running testreport.
232    o pkg/seaice: add os7mp as an advection scheme
233                  add check for advection schemes
234                  add a flag for restoring T and S underneath sea ice
235    o pkg/my82: add netcdf-support and diagnostics
236    o thsice pkg:
237      - Now hsMax limits snow height by turning it into ice following
238        flooding scheme (and now conserving energy)
239      - Slight rewriting of the formula in thsice_calc_thick.F
240      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
241      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
242    
243    checkpoint59p
244    o gchem / dic / cfc :
245      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
246      - add new parameter files: "data.dic" & "data.cfc" ;
247      - various re-arrangement in initialisation & header file ;
248      - fix tutorial_global_oce_biogeo for multi-threaded test.
249    o pkg/dic: test for "pickup_dic" file when restarting ;
250      if no pickup-file, can restart with a re-initialised pH (same as it did
251      before) providing pickupStrictlyMatch is set to False.
252    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
253      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
254    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
255      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
256    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
257     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
258       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
259    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
260       scheme to use for vorticty-term ;
261     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
262       (with default selectVortScheme, return to original discretisation)
263     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
264    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
265    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
266      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
267      also fix diagnostics VISCAHW & VISCA4W.
268    
269    checkpoint59o
270    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
271    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
272      move a few statemens out the main loop into separate loops
273    o pkg/shelfice:
274      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
275        (kg/m^2/s), does not break tests, because in verification/isomip,
276        rhoConstFresh=rhoConst (by accident)
277      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
278      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
279        new file model/src/seawater.F, so that they are available for all pkgs.
280      - convert potential temperature into in-situ temperature. This changes the
281        isomip tests => update tests
282    o add a flag writePickupAtEnd (default=true) to be able to suppress
283      writing a pickup at the last timestep
284    o tools/mpack-1.6 :
285      - disable automake (not working) and autoconf (not needed).
286      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
287        also cleaner with much less compilation warnings.
288    o pkg/profiles:
289      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
290      (for "less than 32 characters name" compiler requirement)
291    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
292      conditions that have a different sampling frequency than S/T/U/V obcs
293    o pkg/diagnostics (stats-diags):
294      - fix global Min/Max in case 1 processor get only empty tiles
295    o genmake2: replace (4 times)
296         make genmake_tc_1.o >> genmake_warnings 2>&1
297      with
298         COMM="$CC $CFLAGS -c genmake_tc_1.c"
299         echo $COMM >> genmake_warnings
300         $COMM >> genmake_warnings 2>&1
301      to make genmake2 always see the value of CC as specified in the optfile.
302    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
303      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
304      - modify verification advect_cs test to test SOM-advection on CS-grid.
305    o pkg/ctrl:
306      - Rewrite of ctrl_map_ini_ecco.F,
307        introducing a generic routine (ctrl_map_ini_gen.F).
308      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
309    
310    checkpoint59n
311    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
312      number in dedicate array "hdiag":
313      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
314        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
315      - many small changes (integer format) for large number of diagnostics
316      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
317        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
318    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
319      usingSphericalGrid, this allows to define the rotated grid coordinates
320      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
321      geographical coordinates according to the inverse of the rotation defined
322      by the Euler angles, so that Coriolis parameter and online-interpolation by
323      exf works with the geographical coordinates on XC/YC/XG/YG.
324      Naturally, this feature does not work with all packages, so some
325      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
326      profiles), because there the coordinates are assumed to be regular
327      spherical grid coordinates.
328    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
329      - introduce isopycnal diffusion coefficient control.
330    o tools/adjoint_options:
331      - additional control vector components.
332    o pkg/mnc: have mnc create marginally meaning full coordinate variables
333      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
334    o pkg/mypackage:
335      - add example of read/write pickup for state-var ;
336      - add entry points to the main code for state-vars diags & write-pickup.
337    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
338      transitions for useExfYearlyFields
339      - add new subroutine that determines the file to read from for
340        use*YearlyFields = .TRUE. and .FALSE.
341      - add a verification experiment to global_with_exf that tests
342        useExfYearlyFields with USE_EXF_INTERPOLATION defined
343    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
344      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
345      subroutines (which could be generated from a template, because they are
346      almost identical), for now they are included in obcs_prescribe_read.F for
347      simplicity
348    o pkg/exf:
349      - add a little more diagnostic to exf_interp_read (in analogy to
350        mds_read_field, can be turned off with debugLevel < debugLevA=1)
351      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
352        ugly but fast by unrolling short inner loops, inserting a unroll=8
353        directive in routine lagran, and splitting a loop and making do while the
354        outermost loop (the latter requires the intoduction of index arrays)
355    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
356    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
357      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
358    o verification/seaice_obcs: updated for restart test and latest options
359    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
360      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
361      for now this is only available for the C-grid code and also within
362      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
363    
364    checkpoint59m
365    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
366      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
367    o gad_som : fix flux output (& diagnostics) to have same units as other  
368      advection scheme fluxes (was previously multiplied by deltaT).  
369    o added verification/seaice_obcs both to test seaice open boundaries
370      and to provide an example matlab scrpt for generating them
371    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
372    o pkg/salt_plume: clean up salt_plume_frac.F to
373      remove redundancy in PlumeMethod 1 and 4
374    o pkg/kpp: added saltplume diagnostics
375    o pkg/obcs and pkg/seaice:
376      - do not set uice and vice to zero when OB*icefile are unspecified
377      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
378      - moved seaice tracer obcs after call to seaice_growth
379    o pkg/salt_plume: added various options for salt plume depth
380      criterion and for vertical distribution of the salt
381    
382    checkpoint59l
383    o pkg/ptracers: new version of ptracers pickup:
384      read meta file and write only fields which are needed to restart.
385      ( same logic as main pickup file ; also using pickupStrictlyMatch )
386    o pkg/seaice:
387      - add timescale for melting due to warm mixed layer as a means of
388        setting SEAICE_availHeatFrac more conveniently
389      - add a CPP-flag/runtime parameter check for flooding algorithm
390      - reformulated availHeat in seaice_growth.F to be independent of AREA
391    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
392      unit changes
393    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
394    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
395      SX vector computer.
396    o pkg/seaice:
397      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
398        seaice forcing fields can now be read only through pkg/exf
399      - removed some unused halos
400    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
401    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
402      or U/VICE from U/VWIND before computing U/VSTRESS
403    
404    checkpoint59k
405    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
406      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
407    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
408      all experiments pass when compile with un-initialised var. checking option.
409    o added pkg/salt_plume
410    o script to test restart (for now, in MITgcm_contrib/jmc_script)
411    o pkg/seaice: new read/write pickup version.
412      read meta file and write only fields which are needed to restart.
413      ( same logic as main pickup file ; also using pickupStrictlyMatch )
414    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
415    o lab_sea.hb87: modify the domain & update output.hb87.txt :
416      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
417      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
418      process. Fixed here by closing the domain at the Northern boundary.
419    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
420    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
421      a set of consecutive levels in/from a 3-D array.
422    o pkg/ptracers:
423      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
424      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
425    
426    checkpoint59j
427    o in pkgs: dic, obcs, offline, rbcs:
428      standard way to compute coeff. for time interpolation between 2 time reccords
429      which retains full precision (& make results less dependent on compiler).
430      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
431    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
432      packages instead of reading ice cover and wind speed separately
433    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
434     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
435      to allow to compile customized code before the update)
436    o cleaning-up:
437      - fix CPP instruction syntax in pkg/obcs
438      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
439        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
440      - fix some threads issue in IO parts.
441    o pkg/dic:
442      - add tons of "_d 0" (--> much better testreports !)
443       and then update outputs of tutorial_global_oce_biogeo
444    o pkg/mom_fluxform:
445      add a special version of momentum advection intended to conserve momentum
446      next to a bathymetry step or a coastline edge. (default = off = #undef)
447    o new read/write pickup version:
448      - for now, only implemented for main (mdsio) pickup file.
449      - write out only what is needed to restart; merge pickup_nh , pickup_ph
450        and main pickup together.
451      - read meta file; read only what is needed to restart; stop if a field
452        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
453        if it make sense (even if the restart is not perfect).
454      - if no meta file, assume that pickup to read corresponds exactly to
455        a pickup that would currently be written.
456      - read pickup written in the old format (until checkpoint59i) if it
457        recognizes an old meta file (no field-list).
458      - add a meta file in exp. which starts from a pickup: 2 cases:
459        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
460         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
461        b) a meta file describing the content of the associated pickup file
462         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
463    o pkg/mdsio & pkg/rw:
464      - new routine to read a meta file ; new set of routine to read
465        Multiple-fields file (with meta file).
466    o added open boundary conditions capability for seaice
467        HSNOW, HSALT, UICE, and VICE
468    
469    checkpoint59i
470    o adjoint:
471      * fix multiDimAdvection adjoint
472        (partial recomputation problem by TAF for fVerT(:,:,kDown)
473        and comlev1 size definition (maxpass vs. max. number of tracers)
474      * verification/global_ocean.90x45x15 adjoint now tests
475        NLFS and multiDimAdvection using DST3 (=30)
476      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
477    o pkg/kpp: add "_d 0" to real constant (if missing);
478      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
479      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
480    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
481      for internal parameters related to restart process (formerly from PARAMS.h)
482      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
483    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
484      as argument. (only atm2d & obcs write_pickup have not yet been updated)
485    o pkg/monitor:
486      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
487      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
488      - account for deep Atmosphere factor and density factor (anelastic)
489    o added open boundary conditions capability for seaice HEFF and AREA
490    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
491      thermodynamics
492      - requires a little reorganization, which affects the testreport results
493        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
494        so that now the conservative form is tested
495      - add a few comments
496    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
497    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
498    o add new diagnostics to seaice: advective, diffusive fluxes (only for
499      multidim-advection, for scheme 2 they are not filled) and transports,
500      thermodynamic growth rates
501    o change units of EmPmR (inside the code, + within coupling interface)
502      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
503      Affects results @ truncation level (cg2d match) and update output of
504       experiments: lab_sea(6), global_ocean.90x40x15(10),
505      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
506      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
507      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
508      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
509    
510    checkpoint59h
511    o pkg/exf:
512      - improve vectorization by moving if-statement out of loops in
513        exf_mapfields, exf_radiation
514      - exf_bulkformulae.F: introduce 2D fields and vectorize code
515    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
516    o testreport:
517      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
518        monitor & update offline_exf_seaice exp. output.
519      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
520    o pkg/seaice:
521      - bug fix in the evp solver: boundary conditions were affected be
522        masking of zMax/zMin (changes results)
523      - minor bug fix in boundary conditions in seaice_calc_strainrates
524        (changes results for no_slip)
525      - seaice_lsr.F: make interpolation of eta dependent on boundaries
526      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
527      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
528        stress formulation and no-slip boundary conditions
529    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
530      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
531    o pkg/seaice: a first HSALT time stepping equation has been checked in
532    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
533      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
534      without requiring DO-IF statements
535    o pkg/thsice:
536      use continuous power-law function for partition of energy between lateral
537      melting/freezing and thinning/thickening ; old code using step function
538      still available with #undef THSICE_FRACEN_POWERLAW
539      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
540    o testreport: change AD testing : check against results/output_adm.txt
541      using same scripts as for forward test.
542    
543    checkpoint59g
544    o adjoint testing: in preparation for changing testreport:
545      - output format: cost and grad written on separated lines
546      - ad output results in directory "results" (instead of "results_ad")
547    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
548    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
549    o pkg/ecco: allow user defined cost function contributions
550    o testreport:
551      Allow to choose (per experiment) the list of tested output variables
552       and the main variable (used to issue a pass/FAIL ) ;
553      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
554      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
555      Also modify printing of summary:
556       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
557       b) echo the list of tested variables in the individual summary.txt of
558          each experiment.
559    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
560      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
561      (but still depend on the tile decompostion of the domain).
562    o pkg/seaice: change a discretization detail to make the B-grid code
563      "more symmetric". This change is likely to remove all "ridges/leads" that
564      where quasi-aligned with the grid in B-grid solutions. It may also be
565      the solution to the stress coupling issues with the B-grid.
566    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
567      remove .cvsignore from input dir. (since testreport no longer run here).
568    o pkg/thsice:
569     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
570     - fix reshaping of sea-ice just after advection:
571       melt all the ice only if ice-volume is too small.
572     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
573       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
574     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
575    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
576      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
577    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
578      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
579      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
580      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
581      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
582      -> update output.txt
583    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
584     this affects truncation error: -> update output.txt of exp:
585      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
586      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
587    
588    checkpoint59f
589    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
590    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
591      a bounded range (in forward mode)
592    o pkg/ecco, ctrl, autodiff and mom_common:
593     internal parameter controls, completements of implementations
594    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
595    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
596      (not seem any difference in testing results).
597    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
598       at face corners.
599    o pkg/generic_advdiff:
600     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
601      loop range indices for computing vertical advection tendency
602      and do the calculation in the interior only (no overlap) ;
603      for now, only implemented for SOM advection (to save CPU time).
604     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
605    o exch2 adjoint
606      First set of changes:
607      - add exch2 hand-written adjoint templates
608      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
609        This will require cleanup in pkg/autodiff/*.F
610        (changed routines currently kept separate in verif. code/)
611      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
612        that used to hide exch2 or cubed-sphere specific code
613        (commented via 'cph-exch2')
614    o pkg/seaice
615      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
616    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
617       output of global_ocean.cs32x15.thsice .
618    
619    checkpoint59e
620    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
621      for B-grid vector (not yet tested) and C-grid vector (<- only used
622      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
623    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
624      (#ifdef ALLOW_SALT_PLUME)
625    o gather_2d/scatter_2d: removed halo regions
626    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
627      scheme and the corresponding test case (under front_relax dir). For now,
628      only available with Skew-flux form and not yet tested in realistic set-up.
629      adjoint: store directives updated, but gradient checks deteriorated,
630      so maybe GM/Redi adjoint is now broken.
631    o seaice adjoint
632      * add AREA, HEFF, HSNOW as control variable
633        (should not change lab_sea results)
634      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
635    o pkg/seaice:
636      * added computation of saltFlux in seaice_growth;
637        For time being, sea ice salinity is assumed constant
638        contribution of snow flooding to freshening of sea ice is neglected.
639        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
640        defaults to 0.0 in order to maintain backward compatibility.
641        Typical values for SEAICE_salinity are 4 to 10 g/kg.
642      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
643      * added SEAICE_availHeatFrac, which specifies fraction of surface level
644        heat content used to melt or grow ice
645      * commented out cap of HICE: it helps keep ice thinner
646      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
647      * applied OBCS T/S mask to HEFFM sea ice mask
648    
649    checkpoint59d
650    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
651     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
652     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
653    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
654     and change default value of parameter "GM_Small_Number";
655     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
656       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
657       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
658    o pkg/ecco: cost function when applying pkg/smooth to controls
659    o pkg/ctrl: add forcingPrecond run time parameter
660    o pkg/seaice:
661     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
662     - fix bug in metric terms of u-equation in LSR solver (implicit part),
663       changes verification/lab_sea
664     - rearrange implicit part of u-equation in LSR solver to make it easier to
665       read, understand, and debug. This causes changes at the truncation level.
666     - fix (serious) bug in the boundary conditions (sign error in the implicit
667       part) of the LSR solver. Changes all LSR results.
668     - fixed problem with HSNOW initialization to avoid thick snow when AREA
669       is initilized with small values - does not change lab_sea results.
670     - added HsnowFile initialization capability
671    o pkg/smooth: addition to model/src and pkg/ctrl so allow
672     initialization of pkg/smooth and application to control vector
673    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
674    o dependencies: pkg/profiles requires pkg/cal
675    o pkg/profiles:
676     - added option ALLOW_PROFILES_GENERICGRID
677         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
678         that interpolation information (grid points and coefficients) is provided
679         within the netcdf input files.
680         -> sample matlab scripts can be found in MITgcm_contrib/gael
681         that allow you to prepare netcdf input files.
682     - also modified: cleaner include statements, cleaner error print statements,
683       cleaner stops when error, and more tests of the netcdf input files consistency.
684    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
685    o pkg/seaice:
686     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
687       requires a new routine: seaice_diagnostics_fill.F
688     - make sure that seaice does not move if not forced (pressure replacement
689       method, Hibler and Ip, 1995), changes results
690     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
691     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
692       It is turned off by default (=-1.), because it changes the results.
693     - make it possible to read AREA from a file, too.
694    
695    checkpoint59c
696    o add S/R and diagnostics for oceanic mixed-layer depth
697    o move GMRedi call after all vertical mixing schemes (including KPP)
698    o pkg/thsice:
699     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
700      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
701    o pkg/obcs:
702     - bug fix for balance code
703    o pkg/seaice:
704      - allow values of SEAICE_elasticParm > 1
705      - add new parameter SEAICE_evpTauRelax as an alternative
706        to SEAICE_elasticParm
707      - make lsr boundary conditions free slip (by default), changes result
708      - add code for no slip boundary conditions for lsr
709      - set minimum of zeta to zero (and not 4e8) (changes results)
710      - add a cap on AREA after advecting AREA if seaice_growth is not called
711    o change calculation of Visbeck K:
712      - no longer depend on tapering scheme; instead, compute slope (limited
713        by GM_maxSlope). this is equivalent to what was comuted before with
714        clipping or linear tappering.
715      - fix vertical averaging (wrong by 1/2 level)
716      - leave the old version (but will not be maintained) within
717        #ifdef OLD_VISBECK_CALC / #endif
718      - update output of exp. ideal_2D_oce
719    o change error catch in calc_r_star to improve vectorization
720    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
721      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
722    o adjoint:
723      Re-organized adjoint checkpointing according to Matt Mazloff
724      (but with modifs/completions/cleanups)
725      Storing is now bundled into large arrays to optimized I/O
726      (and second step in cleanup of the_main_loop)
727    
728    checkpoint59b
729    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
730      - export/import (between ocean & coupler) fields needed for ocean DIC.
731    o pkg/seaice:
732      - get rid of three more exchanges seaice_calc_viscosities (required
733        different loop boundaries in seaice_lsr and seaice_ocean_stress)
734      - bug fix in seaice_ocean_stress (update of lab_sea required)
735      - reduce loop boundaries to necessary minimum also in seaice_evp
736      - go back to the old way of computing deltaC/Z as the adjoint likes that
737        better
738    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
739      passive tracer to an Age Tracer) + update output.txt
740    o pkg/exf:
741      - implement A-grid / C-grid selection for wind-stress input files.
742      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
743      for now, in exf_bulk_largeyeager04.F only :
744      - change implementation for case where windspeed + 2. components wind-stress
745        are read-in. AND use rhoConstFresh to convert evap.
746    o pkg/seaice:
747      - use correct EXCH_UV for wind-forcing (on A-grid).
748      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
749        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
750    o pkg/exf:
751      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
752      EXF_INTERPOLATION:
753      - merge global_with_exf/code version of exf_interp_read.F
754        to the main code ;
755      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
756        reading the file ; Important: This options needs to be defined to recover
757        previous code.
758        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
759      - no longer loose real*8 precision along the way when using exf_iprec=64.
760    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
761      - change discretisation of evp-solver in order to avoid another exchange
762        (changes lab_sea) and clean up a little
763      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
764        help the adjoint (this also changes the results slightly)
765      - add a few "_d 0" where they had been missing in seaice_evp.F
766      - cleaning up: remove unused seaice_calc_rhs.F
767    o pkg/exf: some cleaning-up:
768      - change various "constants" into runtime parameters
769      - cleaned-up Large&Yeager04 routine which should eventually
770        replace exf_bulkformulae.F (changed names of S/R and CPP)
771        and merged various ALLOW_ATM_WIND options
772     only used with thsice pkg (in thsice_get_exf.F):
773      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
774        which are used when useStabilityFct_overIce=TRUE (= the default)
775      - change default values of ice & snow emissivity and scale downward LW
776        by ice & snow emissivity.
777    o pkg/thsice:
778     fix few little problems, in thsice_calc_thickn.F:
779      - growth vertically (and not laterally) if iceFrac == iceMaskMax
780      - melt only laterally if hIce < hThinIce (as the comments say)
781      and in thsice_extend.F:
782      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
783      - start to form ice as soon as the minimum ice-volume is reachable.
784     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
785      and cpl_aim+ocn
786    o pkg/kpp
787     - move computation of surface related input fields to KPP into a new
788       subroutine kpp_forcing_surf.F
789     - remove wrong (within bi,bj loops) EXCH calls.
790     - little cleaning (add argument myThid in last position, cvs header ...)
791     - for now, fix conservation problem by exchanging KPPviscAz (may not
792       be the best fix)
793    o pkg/seaice
794     - check for inconsistent evp parameter/cpp-flag combination
795     - remove leftover errIO flat for obsolete name list error handling
796    o OpenAD
797     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
798    
799    checkpoint59a
800    o pkg/seaice: some parameter clarifications and a little bit of clean up
801    o pkg/thsice: rename run-time parameters:
802       himin       -> hIceMin
803       himin0      -> hThinIce
804       hihig       -> hThickIce
805       i0          -> i0swFrac
806       transCoef   -> bMeltCoef
807       frac_energy -> fracMelting
808      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
809       with default values (for now) that do not change the results.
810      remove old version of thsice vars advection in pkg/seaice.
811    o in FFIELDS.h:
812      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
813      - make pLoad & sIceLoad always available (but still only used if
814         ATMOSPHERIC_LOADING is #define).
815    o pkg/kpp: replaced _KPP_RL with _RL
816    o bug fixes for vertical diffusivity computations when both KPP and
817        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
818        are no longer updating the vertical diffusivity array
819        (passed as argument) but are (re-) setting those arrays.
820    o pkg/seaice: fix bug in evp solver, while doing that
821      - change (improve?) discretization of stress computations for both
822        cgrid-lsr and evp solver
823      - add a new routine to compute strain rates
824      - the above changes lab_sea results
825      - add no slip conditions for evp solver (off by default), lsr-version
826        may follow
827      - fix exchange for shear at Z-points (does not change lab_sea)
828      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
829        (to force the user to pick a time step since there is not "safe" way
830        of choosing it)
831      - add principal stress diagnostics
832      - rearrange fields for evp a little to avoid having to call a: too many
833        exchanges and b: exchanges for stress trensor components which we do
834        not have.
835      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
836        of evp, complete rewrite for lsr case (latter is does not yet work
837        in all cases)
838    o pkg/kpp: add code to have mixing in shelf ice caverns
839      - add myThid to all kpp routines (long overdue)
840    
841    checkpoint59
842    o pkg/exf:
843      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
844        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
845      - move exf header files from lower_case.h to UPPER_CASE.h ;
846        add missing cvs Header & Name
847      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
848      - add namelist param. selectStressGridPosition, exf_monFreq
849      - retire many _CLIM routines, and remove data.exf_clim
850        + params moved to data.exf
851        + climsst, climsss now handled by exf_set_gen, i.e.
852          climss?period=0 refers to constant field,
853          climss?period=-12 to monthly forcing
854      - split up namelists in data.exf
855    o pkg/seaice:
856      - remove seaice_exch and seaice_exch_uv
857      - remove superfluous exchange of theta
858      - add myThid to seaice_budget_ocean/ice
859      - add new interface for atmospheric wind forcing (C-grid only)
860        + new routine
861        + two new field (taux, tauy for stress over ice)
862        + removed one global field (DAIRN) for C-grid case only
863    o pkg/thsise
864      - 2nd set of modifs for thsice adjoint in conjunction with exf
865    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
866    
867    checkpoint58y_post
868    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
869      vertical diffusivity, similar to that in MOM4; turned on using
870      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
871      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
872    o Added capability for 3D specification of background vertical diffusion
873      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
874      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
875      "data" file that contains the 3D vertical diffusivity coefficients.
876    o ice dynamics (pkg/seaice) with thsice thermodynamics:
877      - add code within pkg thsice to advect & diffuse sea-ice fields
878      similar to (and will replace) what has been added in  seaice_advdiff.F,
879      but: - conserving Mass, Heat & Salt.
880           - better when using non-linear advection scheme (not yet fully tested)
881           - can also be used in atmospheric set-up (for now, only the diffusion).
882    
883    checkpoint58x_post
884    o IO option for global-file compact format:
885      - add options when generating topology (utils/exch2/matlab-topology-generator)
886      - add I/O capability (pkg/mdsio).
887      - adapt utils/matlab/rdmds.m to read this format.
888      for now long-line format not yet supported by pkg/mdsio (& exch2).
889    o shelfice: add a few diagnostics
890    
891    checkpoint58w_post
892    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
893      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
894      (and replace horiVertRatio in NH code).
895      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
896                         and tutorial_plume_on_slope (sensitive to truncation)
897    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
898      directly to drive seaice model (C-grid only)
899    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
900     - reintroduce computation of wind from stress,
901     - compute tau (in exf_bulkformulae.F) from windstress averaged to
902       mass points to avoid tau = 0
903     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
904    o rdmnc.m: make it work with "global" files created with gluemnc
905    o rdmnc.m : some improvements in dealing with singleton dimension
906      (tested on all testreport mnc output files).
907    o genmake2: disable pkg/profiles if netcdf test fails.
908    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
909    o move call to cal_readparms up to make calendar parameters/variable available
910      to all packages
911    
912    checkpoint58v_post
913    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
914      useDynP_inEos_Zc tested.
915    o pkg/exf: changes to properly interpolate/mask/scale initial fields
916    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
917      and portions thereof.  See read_cs.txt for description and examples.
918    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
919      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
920      following the great-circle arc between those 2 points.
921    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
922      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
923    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
924     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
925     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
926     - still needs work (not working with some options ; efficiency to improve)
927       and serious testing.
928     - use this scheme for temperature & salinity in 2 advection test exp.:
929       advect_xy & advect_xz, respectively.
930    
931    checkpoint58u_post
932    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
933    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
934    o testreport: add option "-skipdir" to skip some test.
935    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
936      momentum calculation.
937    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
938    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
939      remove checkpoint.F and the_correction_step.F (no longer used);
940      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
941    o add option (linFSConserveTr) to correct for tracer source/sink due to
942      Linear Free surface
943    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
944    o pkg/thsice: fix reading mnc-pickups
945    
946    checkpoint58t_post
947    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
948    o pkg/mdsio:
949     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
950       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
951       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
952     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
953     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
954       either MDS_READ_FIELD or MDS_WRITE_FIELD )
955     - new S/R (to replace MDSWRITEMETA), which allows to write more
956       informations (variable names, time ...) to meta files.
957     - modify rdmds.m to give back the meta file content.
958    o pkg/diagnostics: change vertical interpolation to be safer, and more
959       flexible (define p-levels to interpolate to in data.diagnostics);
960      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
961       diagnostic pointer.
962    o pkg/seaice: more cleaning up of seaice_growth, added many comments
963    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
964    o fix multi-category seaice:
965     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
966       SEAICE_MULTICATEGORY
967     - fix short wave heat flux
968    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
969       and allow to use EVP solver. Change forward lab_sea: test both EVP
970       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
971    o Initial check-in of lab_sea adjoint
972      (very similar to natl_box_adjoint/code_seaice)
973      * used C-grid and EVP solver
974      * used KPP, GM/Redi
975      * uses inAdExact=.TRUE.
976      * gradient checks fail for both ADM and TLM
977        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
978        f.d. gradients actually seem more problematic than ADM, TLM gradients;
979        issue is related to forward mismatch between g77 an ifort
980    o pkg/seaice: overhaul of thermodynamics
981     - growth.F and groatb.F are replaced by new routine seaice_growth.F
982     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
983     - move a few global fields out of SEAICE.h into seaice_growth.F and
984       make them 2D (FICE/QNETO/ ...)
985     - remove FO (it is the same as QNETO)
986     - introduce a few local fields to avoid modifying external fields such
987       as atemp, etc.
988    
989    checkpoint58s_post
990    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
991      changed exf_set_gen.F so that
992        genperiod=0 means input file is one time-constant field and
993        genperiod=-12 means input file contains 12 monthly means
994    o CG2D: use pre-computed solver main-diagonal (stored in common block);
995      this affects truncation error ; generate new output file for exp. which
996      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
997        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
998        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
999        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1000        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1001        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1002    o start implementation of deep-atmosphere and anelastic formulation
1003    o verification: remove 2nd copy of input files and use script "prepare_run"
1004      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1005    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1006    o profiles: fix for multithreaded case
1007    
1008    o diagnostics: rename few diags:
1009      s/'PRESSURE'/'RCENTER '/g
1010      s/'TICE    '/'oceFreez'/g
1011      s/'TAUX    '/'oceTAUX '/g
1012      s/'TAUY    '/'oceTAUY '/g
1013      s/'SWFLUX  '/'oceQsw  '/g
1014      s/DIFx/DFxE/g
1015      s/DIFy/DFyE/g
1016      and add few ocean-forcing diagnostics:
1017      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1018    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1019      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1020      as actual snow thickness.  It now refers everywhere to effective snow
1021      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1022    
1023    checkpoint58r_post
1024    o modifications to pkg/seaice/growth.F, which change results of
1025      lab_sea experiment: fixes pertain to melting snow over open water, to
1026      masking EVAP under sea ice, and to using the correct AREA variable for
1027      computations of EVAP, PRECIP, HSNOW, and GHEFF
1028    o add ability to read bathy, salt, and theta using MNC (off by def)
1029    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1030      both are turned off by default and do no change any results
1031    o seaice advection with pkg/thsice: a step toward the use of non-linear
1032      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1033    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1034      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1035      in natl_box (affects results @ truncation level: update output.txt)
1036    o multi-threading and IO:
1037      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1038      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1039        (needed to work with SingleCpuIO): tested in all verif. exp.
1040    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1041      affects the results (but none of the verification test uses this scheme).
1042    o Adding some pkg/diagnostics capability to pkg/seaice
1043      (will certainly be subject to changes)
1044    o ctrl: adding new control variables:
1045      lwflux, lwdown, evap, snowprecip, apressure, runoff
1046    
1047    checkpoint58q_post
1048    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1049      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1050      high_res_cube configuration by 4% on Columbia.
1051    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1052      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1053      dynamical allocation (seems to work in multi-threaded).
1054    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1055      single CPU io) so that TAF does not have to see EESUPPORT.h
1056    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1057    
1058    checkpoint58p_post
1059    o obcs: stop if obcs is used with useCDscheme = .true.
1060    o shelfice:
1061     - fix a sign error so that no slip at shelfice interface works
1062     - remove stop for combination non-hydrostatic code and shelfice. That does
1063       not mean, that the results are correct, but at least they are numerically
1064       stable
1065    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1066    o added adjoint exch routined for all exch*3d* routines
1067      and updated flow directives
1068    
1069    checkpoint58o_post
1070    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1071      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1072    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1073      and clean-up reading/writing of pickup files.
1074    o fix local version of read/write pickup (NH part) in rotating_tank/code
1075    o simplify EXCH interface:
1076     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1077     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1078    o added the regrid package
1079    o shelfice:
1080     - add a simple boundary layer scheme to reduce noise
1081     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1082    
1083    checkpoint58n_post
1084    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1085       local variable (not in common block).
1086    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1087      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1088      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1089        to work with SingleCpuIO.
1090    o add "_d 0" to real constant of pkg/cfc subroutines ;
1091       update exp. cfc_exemple & tutorial_cfc_offline output files.
1092    o multi-threading and IO:
1093      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1094        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1095      - barrier before and after reading.
1096      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1097      - avoid using MDS_WRITELOCAL for LAND pkg output.
1098      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1099        common-block variables ; Allows multi-threading with master-thread IO.
1100    o change default MAX_NO_THREADS from 32 to 4 ;
1101      and stop cleanly when MAX_NO_THREADS is too small.
1102    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1103    
1104    checkpoint58m_post
1105    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1106       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1107    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1108       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1109       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1110    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1111        add MITgcm_tutorials (= code + all the tutorials)
1112    o ecco, option to compute cost for total ssh (mean+anom)
1113    o consistent with addition of ptracer and ssh in pkg/profiles
1114    o profiles: adding ptracer and ssh
1115    o testreport: change multi-test output-file name
1116      (from output.txt.{name} to output.{name}.txt)
1117    o profiles: now ok for mutli-tiles case
1118    o seaice: add 4 parameters for different advection schemes for area,
1119      (effective) seaice thickness, enthalphy, and snow height. Their default
1120      is the standard parameter SEAICEadvScheme
1121    o calc_gw:
1122     - add cosFacU in zonal viscous flux (harmonic.visc.).
1123     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1124       of tutorial_plume_on_slope.
1125    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1126    o calc_gw: true flux-form, account for horizontal grid spacing.
1127      update rotating_tank results, but not plume_on_slope (affected at
1128      truncation level, 11 digits).
1129    
1130    checkpoint58l_post
1131    o calc_gw:
1132     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1133     - remove side-drag for now (need to fix it); update plume_on_slope results.
1134     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1135    o commit code to make SST/SSS weights spatially variable
1136      (based on either variable in-situ or variable initial T/S weights)
1137    o pkg/ecco:
1138      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1139        now based on horizontally varying weights wthetaLev, wsaltLev
1140      * cost_averagesflags now returns year indices in addition to day, month
1141      * sflux balance is performed on annual basis
1142        (sflxumm, sfluxmm2, bal_sfluxmm)
1143      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1144        including separate counting and multipliers
1145    o pkg/rbcs
1146      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1147    
1148    checkpoint58k_post
1149    o testreport:
1150     - always build in dir. "build" (if not there, mkdir build instead of building
1151       & running in input)
1152     - run in dir run (if it exists), in build otherwise.
1153     - call prepare_run (if input/prepare_run exists)
1154     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1155    o pkg/exf modifications to interpolation and rotation routines for more
1156       reasonable treatment of North Pole singularity: for tracers North Pole
1157       value is set to northernmost zonal-mean value, for zonal velocity it is
1158       set to zero, and for meridional velocity it is set to northernmost value.
1159    o pkg/exf/exf_check_range.F
1160     - add tile index to diagnostics and move stop statement to the very
1161       end of the routine.
1162    o pkg/diagnostics: (diagnostics_main_init.F)
1163      define title of isomorphic variables according to the current config.
1164    o pkg/thsice with pkg/seaice dynamics:
1165    - fix domain of computation (interior only, required for exf) and do exchanges
1166    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1167    o towards a standard way of dealing with multi-threading in MONITOR
1168      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1169    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1170       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1171    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1172    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1173    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1174       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1175    o tracer advection:
1176     - clean-up and simplify calc_common_factors.F
1177     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1178       advection subroutine (but still not used within DST advection S/R)
1179    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1180    
1181    checkpoint58j_post
1182    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1183      from file (collects calls previously in FORWARD_STEP)
1184    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1185    o adjoint store dir. adjusted accordingly
1186    o genmake2
1187      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1188    
1189    checkpoint58i_post
1190    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1191      on wind stress (SEAICEstressFactor defaults to 1.)
1192    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1193      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1194    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1195      on CS-grid: no longer loosing mass.
1196    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1197    o pkg/ggl90: fix sloppy output and fix a bug
1198    o pkg/seaice: added SEAICEuseEVPpickup parameter
1199      - Set to false in order to start EVP solver with
1200        non-EVP pickup files when using SEAICEuseEVP
1201      - fix sign error in diffusion in seaice_calc_rhs
1202    
1203    checkpoint58h_post
1204    * Modifications for bottom topography control
1205      o replace hFacC by _hFacC at various places
1206      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1207      o add non-self-adjoint cg2d_nsa
1208      o update autodiff support routines
1209      o re-initialise hfac after ctrl_depth_ini
1210      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1211    * Adding verification for 5x5 box (4-layer) bottom topography control
1212    
1213    checkpoint58g_post
1214    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1215       used for mean seasonal cycle, mean diurnal cycle); add an example
1216       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1217    o pkg/ggl90:
1218      - add parameter (minimum surface kinetic energy)
1219      - fix bug (avoiding division by zero)
1220    o couple pkg/thsice to pkg/seaice:
1221      - modify advection in seaice to accomodate new scalar fields to be advected
1222      - only muliDimAdection scheme work with seaice/thsice
1223      - mapping of thsice-variables to seaice-variables, back and forth
1224      - does not break the verification experiments, but does not give the
1225        desired results either
1226    o pkg/seaice
1227      - make (default) second order advection a bit less confusing?
1228    
1229    checkpoint58f_post
1230    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1231      to pkg/seaice):
1232      - new routines thsice_map_exf and thsice_get_exf provide the interface
1233      - add an additional formal parameter to thsice_solve4temp
1234    o pkg/exf:
1235      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1236      - correct Stefan-Boltzmann constant
1237      - new parameter for longwave surface emittance
1238      - separate some stuff from exf_bulkformulae into new routines  
1239        exf_radiation, exf_wind
1240      - add new parameters and constants: longwave emissivity for ocean, ice
1241        and snow, evaporation parameters over ice
1242      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1243        either wind from stress or stress from wind
1244    o pkg/thSIce:
1245    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1246    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1247       and THSICE_CALC_THICKN
1248    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1249    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1250      to make debugging easier.
1251    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1252    o pkg/bulk_force:
1253      - clean-up comments and parameters ;
1254      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1255    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1256      generate new output for test-experiment: aim.5l_cs.thSI
1257    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1258      testreport accordingly
1259    
1260    checkpoint58e_post
1261    o SEAICE_CGRID adjoint done
1262    o R_STAR adjoint implemented.
1263      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1264      * need to sort out init. of h0facc, etc.
1265    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1266      to be able to use it in pure forward.
1267    
1268    checkpoint58d_post
1269    o upgrade simple test-experiment to tutorial example:
1270     step.1: duplicate the experiment and (step.2) will remove the old copy.
1271      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1272      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1273      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1274      tutorial_global_oce_biogeo    <- copy of dic_example
1275      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1276      tutorial_plume_on_slope       <- copy of plume_on_slope
1277      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1278      tutorial_global_oce_optim     <- empty for now (David ?)
1279      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1280     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1281    o correct a sign problem in cost_scat.F
1282    o obcs and ptracers: fix boundary conditions for advections schemes
1283      with larger stencil
1284    o thsice adjoint: start
1285    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1286      completeness
1287    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1288      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1289    o ptracers adjoint:
1290      * avoid extensive recomputatations
1291      * fix missing re-init. of gptr (missed by TAF)
1292    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1293      me to turn off the excessive output to STDOUT that this package produces
1294    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1295      and add those terms in Vector-Invariant formulation.
1296    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1297      if the control period (xx_hfluxperiod etc) is 0
1298    o in profiles pkg, clean routines and fix details
1299    o in ecco pkg, reading ssh data:
1300      fix problem in case the model does not start at iter0=0
1301    o fix mnc-pickup/restart for ptracers
1302    o new package prifiles:
1303      code to compute profile-based cost by Gael Forget
1304      (modifs in ecco, ctrl, autodiff)
1305    o Benign bug fix in initialization (spotted by M. Mazloff) of
1306      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1307    
1308    checkpoint58c_post
1309    o adjoint: finish NLFS adjoint and provide reference output in
1310      verification/global_ocean.90x40x15/results_ad_nlfs
1311    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1312      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1313      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1314      with SEAICE_CGRID defined.
1315    o move calendarDumps from "data" to "data.cal" and clean-up the code
1316      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1317    o add useEXF & useCAL flags (for now, set in hard-coded way)
1318    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1319      (were missing in NH mode, and wrong in quasihydrostatic mode).
1320      waiting for Chris updated version of calc_gw to add those CALLs.
1321    o fix bug in quasihydrostatic S/R ;
1322      add a test for this option: global_ocean.90x40x15.qshyd
1323    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1324      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1325    o add on/off flag useOffLine for package OFFLINE
1326    o seaice:
1327      - modify advection so that it works also on the C-grid
1328      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1329        problem in multi-tile runs with C-grid
1330      - add flags for clipping ice velocities and/or masking solver forcing
1331      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1332        C-grid solver
1333      - added a few comments to seaice_diffusion.F
1334      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1335        are now exclusive)
1336      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1337        required re-ordering the code a little:
1338       + make DAIRN global variable (defined in SEAICE)
1339       + move computation of the viscosities eta and zeta into a new separate
1340         routine (because I need to recompute them in seaice_ocean_stress.F)
1341    
1342    checkpoint58b_post
1343    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1344      update output.txt of exp. aim.5l_cs.thSI
1345    o various mnc cleanups and improvements:
1346      + shrink lookup tables by factor of ~4
1347      + better error reporting when running out of lookup space
1348      + able to handle longer path/file names (up to 500 chars)
1349    o adjoint:
1350      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1351      - TBD: "hidden" mom_vecinv recomp. in dynamics
1352    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1353     (allow to differentiate between forcing components using new integer flags:
1354      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1355     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1356    o ecco
1357      - enable trend removal from SSH anomaly obs.
1358    o adjoint
1359      - a fix for PmEpR when #undef EXACT_CONSERV
1360      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1361      - try to fix "hidden" recomp. in forward_step for NLFS
1362        (NLFS seems broken sometimes after I checked it in)
1363    o seaice:
1364     - add c-grid version of the dynamic solver:
1365       + three new routines that are the c-grid substitute lsr, dynsolver
1366         and ostres
1367       + put a few fields that were local to dynsolver into global common
1368         blocks, so that I can move the computation of stresses etc into
1369         seaice_lsr (saves coding but may break the adjoint).
1370     - replace more hardwired parameters by runtime parameters
1371     - add ice masks that mask the rhs of the implicit solvers where there
1372       is no ice (commented out in seaice_dynsolver, because i am not sure
1373       if this works properly), eventually this should replace the clipping
1374       of ice velocities in seaice_dynsolver to +/-40cm/s.
1375    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1376      include it only where its needed
1377    o move balancing of fluxes before the call of external_forcing_surf
1378    o seaice:
1379      - correct units of turning angles (now they are really in degrees)
1380      - move computation of GWATX/Y out of main routine into dynsolver
1381      - initialize GWATX/Y in seaice_init
1382    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1383      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1384    o seaice: add runtime flags for turning angles (default to zero)
1385    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1386      and trend from exf forcing and ctrl control adjustments
1387    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1388      (since checkpoint57x_post)
1389    o change the default rotation period to 86164.s = the Earth rotation
1390    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1391      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1392    o seaice advection: add code for choosing between the default (2nd order
1393      central differences) and multiDim advection schemes provided by
1394      pkg/generic_advdiff
1395    o seaice:
1396      - removed all references to SEAICE_GRID.h fields from
1397        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1398        (cubed-sphere configuration will change a little)
1399      - grid computations in seaice_init are obsolete now.
1400      - cleaned up code a little so that is easier to read (hopefully).
1401      - added new (better?) discretizations of default advection and diffusion
1402        (turn on with SEAICEuseFluxForm)
1403      - replace 1 in 3d global fields by kSurface in growth.F
1404      
1405    checkpoint58a_post
1406    o seaice:
1407      - bug fix in advect.F
1408    o shelfice:
1409      - separate shelfice load anomaly from pload (breaks with time
1410        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1411        Its default is 0., but it may be computed more cleverly from (unknown)
1412        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1413        done offline. A good approximation of the pressure load anomaly is
1414        necessary to avoid large initial adjustment processes underneath
1415        deep-reaching shelfice.
1416      - small fix in ISOMIP shelfice_thermodynamics
1417      - add more sophisticated thermodynamics of Hellmer (1989), this is
1418        now the default
1419      - give a few constants more intuitive names
1420    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1421      if bulk formulae are used in long integration (especially EmPmR). Turn
1422      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1423      if balancePrintMean, the imbalance that is substracted is printed to
1424      STDOUT.
1425    o fix bug (typo) in obcs_apply_eta.F
1426    o add a new package shelfice which enables us to model the circulation
1427      underneath shelf-ice with draughts of hundreds of meters.
1428     - works
1429     - to do: + include improved thermodynamics
1430              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1431                instead of new field kTopC
1432              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1433                instead of new field R_shelfIce and new code in ini_depth.F
1434                and ini_mask_etc.F?
1435              + adjust vertical mixing schemes?
1436    o seaice pkg:
1437     - add a cpp-flag to include a simple formula for a salinity dependent
1438       freezing point of sea water at the surface
1439     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1440       meridional stresses are now different (and hopefully correct)
1441    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1442       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1443       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1444    o pkg/diagnostics: add options and parameters for regional-statistics
1445       diagnostics ; define regions by reading a region-mask from a file
1446       (might add other options later)
1447    o pkg/bulk_force:
1448     - add option and parameters to use AIM surface-flux formulae.
1449     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1450       others forcing fields (defined in PARM05, parameter file "data") are loaded
1451       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1452     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1453     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1454     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1455       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1456     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1457    
1458    checkpoint58
1459    o add "--embed-source" option to genmake2 which, when the supporting
1460      tools can be compiled (as determined by genmake2) will turn on the
1461      embed_files package which then embeds the entire MITgcm source code
1462      (*.[fFhc] + Makefile) used for the build within the executable
1463      - requested by CNH but off by default
1464      - adds a paltry <9MB to the mitgcmuv executable in most cases
1465      - only writes the output when useEMBEDSRC in eedata is true
1466    o clean up 3-dim. relaxation codes:
1467      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1468      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1469      * Thanks to Tom Haine for testing!
1470    
1471    checkpoint57z_post
1472    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1473      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1474    o fix the pickup behavior for obcs in combination with ptracers
1475    o fix a bug in ptracers_external_fields_load
1476    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1477      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1478    o transfered surface NH pressure to eta field (if exactConserv).
1479    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1480         and update lab_sea output.txt file.
1481    o completing 3-dim. relaxation code: additional term
1482         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1483      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1484      * At compile time, in "EXF_OPTIONS.h" set
1485          #define  ALLOW_CLIMTEMP_RELAXATION
1486          #define  ALLOW_CLIMSALT_RELAXATION
1487      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1488          tauThetaClimRelax3Dim = 15552000.0,
1489          tauSaltClimRelax3Dim  = 15552000.0,
1490      * 3 cases:
1491          1) Use a constant-in-time 3-dim. field
1492          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1493          3) Real-time relax. to time-evolving prescribed field
1494    o Adding Laplacian-type smoothness constraint on
1495      initial and boundary (forcing) controls (ic, bc)
1496      * enable at compile-time via
1497        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1498      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1499      * Absolute scale somewhat unclear so far
1500      * no area weighting was included since no other cost term does so far
1501    
1502    checkpoint57y_post
1503    First step for a NLFS adjoint
1504    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1505    o new init. routines for calc_r_star, calc_surf_dr
1506    o still need to deal with ini_masks_etc
1507    o testreport seemed happy
1508    checkpoint57y_pre
1509    
1510    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1511    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1512    o add new offset feature to offline pkg (plus minor cleanup)
1513    o cfc fixes for final year of integration
1514    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1515      be in GCHEM_OPTIONS).
1516    
1517    checkpoint57x_post
1518    o fix testreport Pb in multiple test experiment.
1519    o cleanup our namelist syntax in verification:
1520      - make it more F95 standards compliant (some work still needed)
1521      - allows the vast majority of our tests to work with gfortran
1522    o Non-Hydrostatic:
1523     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1524     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1525    o Allow to apply AB on T,S rather than on AB(gT,gS):
1526     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1527     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1528       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1529     - need a "clever" read_pickup to restart from the other AB formulation
1530    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1531    o remove some unused variables (reduces number of compiler warnings)
1532    o adjoint
1533      * Disable useVariableViscosity for adjoint for time being
1534        (there are a number of extensive recomputations)
1535      * Initialize certain variables needed for adjoint
1536    
1537    checkpoint57w_post
1538    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1539                 fix the singleCpuIO RS version of MDSWRITEFIELD
1540       and add a WARNING if using globalFiles=T with multi-processors.
1541    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1542      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1543    o tracer advection scheme:
1544      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1545       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1546       was not very convenient).
1547      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1548       (further tests needed for the implicit DST & Flux-Limiter schemes).
1549    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1550      and sRef for convenience, handy, when you want to initialize
1551      ptracers in a large domain with a constant non-zero value. Also,
1552      untangle ptracers_init.F a little.
1553    
1554    checkpoint57v_post
1555    o change dome exp. to use variable viscosity in side-drag terms.
1556    o remove all the files from the cfc_offline test since they are now
1557      incorporated into tutorial_cfc_offline which has been producing
1558      identical results for a few days of testing
1559    o add new parameter: sideDragFactor to enable half-slip-side BC
1560      and change side-drag S/R to use viscosity from mom_calc_visc
1561      (can switch back by setting sideDragFactor=0.); affects results at
1562      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1563       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1564    o vorticity & strain are now computed without masking, to account for
1565      no-slip-side BC in variable viscosity calculation ; mask is applied
1566      anyway later on, before computing advection/coriolis terms.
1567    o modify exp4 to test new obcs support for reading from external files
1568      and for passive tracers
1569    o fix behavior of ptracers_monitor when monitor output is written to a
1570      netcdf-file; still not independent of monitor.F (writes in the same
1571      file).
1572    o change default value of tRef (put a uniform, meaningful value for ocean
1573      & atmos) and initialize sRef (was missing, as Martin mentioned).
1574    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1575      to be proportional to enstrophy dissipation length.  Thus,
1576       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1577      This is now consistent with Smagorinsky and with the manual.
1578    
1579    checkpoint57u_post
1580    o OBCS and PTRACERS: add open boundary support for passive tracers
1581      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1582        OB-values from file; this is not different from the way theta and salinity
1583        are treated
1584      - however, Orlanski-radiation conditions are not supported, and the model
1585        will stop if you use pTracers and Orlanski at the same time.
1586      - beefed up the rountine obcs_external_fields_load: now only those open
1587        boundary values are overwritten with values from files for which there
1588        are really files, otherwise the OB-fields remain untouched. This makes
1589        it possible to use different OBs at different ends of the domain (as
1590        with EXF)
1591    o reduce number of exch calls in shap_filt (s2).
1592    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1593      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1594    
1595    checkpoint57t_post
1596    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1597    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1598      same truncation, independent of the face number: affects affects several
1599      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1600    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1601      note that biharmonic viscosity + no-slip was not tested in any experiment.
1602    o fix bug in non-linear free-surf side-drag ; generate new output for
1603      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1604    o make mnc honor the writeBinaryPrec flag for most kinds of output
1605    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1606    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1607      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1608    o add brackets in multi-terms sum to get same truncation, independent of
1609      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1610      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1611    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1612      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1613      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1614      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1615      Suggested values of viscosity parameters found in mom_calc_visc.
1616      Many new viscosity diagnostics available.
1617    
1618    checkpoint57s_post
1619    o Add clearing-house for viscosity calculations, mom_calc_visc and
1620      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1621      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1622      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1623      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1624      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1625      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1626      ViscAhStrain and viscAhTension are now retired.
1627    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1628    o In response to JMC's bug report, genmake2 now ignores any soft-links
1629      that it finds in the *current* directory when searching for files.
1630      Soft-links found in any other source directories will still work as
1631      they did before.
1632    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1633      a C routine to unlimit the stack size
1634    o mnc-ify pkg/aim snapshot vars
1635    o mnc-ify pkg/land as requested by Daniel
1636    o various changes to mnc including:
1637      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1638      - output can now be grouped so that all files within a group
1639          change the ITER portion of their names in lock-step together
1640      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1641          and works with both EXCH1 and EXCH2 (but needs more testing)
1642      - writing works for all verification test cases w/ g77 on Linux
1643    
1644    checkpoint57r_post
1645    o make MNC variable initialization happen earlier
1646    o add diagnostics for (almost) each term of the momentum Eq.
1647    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1648    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1649    o remove MINIMAL_TAVE_OUTPUT option ;
1650      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1651    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1652      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1653    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1654    o add time-dependent SST, SSS control
1655    o cost terms in ecco/ modularized (new cost_generic.F)
1656    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1657    o new infrastructure for seaice model vs. obs misfits in seaice/
1658      * driver from the_main_loop.F is seaice_cost_driver.F
1659      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1660      * gradient check in Exp. 6a of natl_box_adjoint/
1661    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1662      (see README file)
1663    
1664    checkpoint57q_post
1665    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1666    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1667      - bug was reported by Jean-Michel and Ian Fenty
1668    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1669      update exp. cpl_aim+ocn output.
1670    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1671      Needed for high-res. runs with large global files
1672      to be able to limit tapelev size
1673    o Changed some tests for adjoint:
1674      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1675      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1676      * global_ocean.90x40x15/ back to default 3-level checkpointing
1677    o Modifications to enable scripted COMMON to MODULE conversion
1678      * verification/OpenAD/code/ has necessary scripts and description;
1679      * converts, compiles and runs successfully;
1680    
1681    checkpoint57p_post
1682    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1683    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1684      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1685    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1686    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1687      (was already the case for dissipation with mom_vecinv,
1688       and also the case for grad.PhiHyd when staggered-timeStep)
1689      This will allow to put dissipation out-off the AB time-stepping.
1690     Unfortunately, affects truncation error. Update output of exp. that "fails"
1691      (cg2d matching number) and leave the others for later: front_relax(10),
1692      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1693      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1694    
1695    checkpoint57o_post
1696    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1697      (2) its ready to be documented during the 20050801 DocFest
1698    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1699      for ideal_2D_oce and lab_sea on linux_ia32_g77
1700    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1701      in global1x1_tot/code_seaice_adj to access indices 32, 33
1702      (worth another tag)
1703    
1704    checkpoint57n_post
1705    o adding precip control xx_precip 32
1706    o adding swflux control xx_swflux 33
1707    o Replacing 10 forcing penalty cost routines by 1 generic.
1708    o Implementing partitioning in time-mean and variable adjustment
1709      for atmos. state.
1710    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1711  o in natl_box_adjoint:  o in natl_box_adjoint:
1712    * updated: results_bulk/    * updated exp 1 to 10
1713    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
1714    o updated global1x1/*_seaice_adj/
1715      to incorporate latest changes
1716    o enable useSingleCpuIO for mdsio vector routines
1717      (applies in particular to tapelev I/O)
1718    o removed inefficient K-loop in all active_file*control*.F
1719    
1720  checkpoint57m_post  checkpoint57m_post
1721  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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