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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.1034 by mlosch, Sat Oct 25 20:49:22 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 fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
8  o moved ptracer ctrl index 17 -> 32    (#undef REAL4_IS_SLOW)
9     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
10       coordinate variable
11     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
12       (surface forcing fields), removes some of the functionality
13     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
14     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
15       probably not all: copy _RS surface flux fields to RL field before
16       calling DIAGNOSTICS_FILL
17    
18    checkpoint61e
19    o gmredi (Visbeck-variable-K):
20      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
21      - change computation of Visbeck-K where Slope > Smax :        
22        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
23        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
24    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
25      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
26    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
27    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
28      does not become too large (to avoid precision problems in implicit-diffusion
29      solver); update ideal_2D_oce output.
30    o pkg ggl90:
31      - in ggl90_cal.F: compute only one set of visc/diff, used to
32        step forward TKE/T/S/momentum
33      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
34        have Prandlt =1)
35    o gmredi (fm07):
36      - add lower limit on Transition layer thickness + lower limit on 1/lambda
37      - allow to set few more params from data.gmredi
38    o pkg ggl90:
39          - add missing sqrt(2) factor in computation of mixing length
40            scale in ggl90_calc.F
41            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
42    
43    checkpoint61d
44    o adjoint modifs
45      - adapt to new field rhoInSitu
46      - allow to revert from StoreDynVars2D, StoreDynVars3D
47        to individual fields
48        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
49    o store 3-D (in-situ) density in commom block (DYNVARS.h)
50     - save 1 rho computation.
51     - no longer modify T & S inland when using down_slope pkg.
52    o gad_som : allow to switch to SOM advection for T & S without corresponding
53      pickup files (using new S/R: MDS_CHECK4FILE).
54    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
55      (for useSingleCpuIO to work in multi-threaded)
56    o pkg/shelfice:
57     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
58       with SHELFICEtopoFile in data.shelfice
59     - move code for reading ice shelf topography and modifying hFacC into separate
60       subroutines of the shelfice package
61     - separate initialisation of "fixed" and "variable" variables
62     - kTopC is not (yet) replaced by kSurfC, although this is possible
63    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
64    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
65      and rename:
66      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
67      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
68    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
69    
70    checkpoint61c
71    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
72      to add mass source/sink of fluid in the interior (3-D generalisation
73      of oceanic real-fresh water flux).
74    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
75    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
76    o new pkg: down_slope
77      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
78      - presently, modify T & S inland (dwnslp_calc_rho.F).
79        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
80      - implementation for ocean in P-coords not tested.
81      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
82    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
83      (to facilitate conversion of oceanic pkg to p-coordinate).
84    o change FIND_RHO to FIND_RHO_2D :
85      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
86    o new pkg: cheapaml
87    
88    checkpoint61b
89    o exch2:
90      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
91      - no longer depend on the order sequence (N,S,E,W).
92      - 3rd exchange no longer needed (tested with 24 tiles).
93      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
94      - exch_UV_A-grid readily available (but not yet tested).
95      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
96      (both are no longer needed) in exch_uv: no effect in forward run; but
97       get truncation error differences with adjoint exch.
98    o exch2:
99     - change index-bounds storage (moved from target to local tile,
100       more intuitive this way) ; rename/remove some variables.
101     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
102    
103    checkpoint61a
104    o exch2/matlab-topology-generator:
105      fix bug in index bounds for N-S internal exchange (hard to tell if this
106      had any effect on the solution).
107    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
108      is exceeded
109    o testreport: modify syntax of awk, so that it works also with
110      awk, and not only with nawk and gawk
111    
112    checkpoint61
113    o autodiff
114      Change default for TAF usage by removing argument '-nonew_arg'
115      This changes TAF subroutine argument list (ordering of active var.)
116      Omission of this flag leads to incompatibility w.r.t. TAMC
117      To restore TAMC-compatibility, need following modifs:
118      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
119      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
120      Tested TAF version is 1.9.22
121      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
122    
123    checkpoint60
124    --->>> This is the last checkpoint for which generating the adjoint
125    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
126    --->>> by default.
127    --->>> Future checkpoints will ommit this flag by default.
128    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
129    o pkg/grdchk: Add gradient check to etan0 perturbations.
130    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
131    o pkg/autodiff: more flexibility in zeroadj.
132      model/src: modifying do_oceanic_phys.F accordingly.
133    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
134    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
135      special setup of gmredi for which the adjoint is stable
136      enough for parameter optimization.
137    o bridging the gap between eddy stress and GM.
138      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
139          along with a change in CPP option (now ALLOW_EDDYPSI).
140      -> when using GM w/ GM_AdvForm:
141          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
142          is applied either in the tracer Eq. or in momentum Eq.
143          depending on data.gmredi (intro. GM_InMomAsStress).
144      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
145      The key modifications are in model/src/taueddy_external_forcing.F
146      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
147    
148    checkpoint59r
149    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
150      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
151      fix option to read coriolis(@ cell-corner) from files with CS-grid.
152    o pkg/mnc: add some attributes to standard 1D-coordinate variables
153    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
154      mass points, when using mnc for output
155      - add runtime parameter (missing_value, missing_value_int) to override
156        default (which is the value of getcon('UNDEF'))
157    o pkg/mnc: prepare mnc for the actual use of missing values with the
158      diagnostics package: small fix in mnc_cw_readwrite.template and more
159      initialisation of never used fields
160      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
161      versions
162    o pkg/thsice/thsice_ini_vars.F added default initial values so that
163      thermodynamics sea ice solver does not blow up when some initial fields
164      are missing.
165    o move from external_forcing_surf.F to ini_forcing.F
166      the p-coord. hack consisting in using pLoad to set phi0surf ;
167      update output of tutorial_global_oce_in_p (affected @ truncation level).
168    o Freshen up a bit hs94.1x64x5, notably:
169      remove rotationPeriod and tRef=5*0. (adjoint only), and add
170      exactConserv=.TRUE.
171    o pkg/generic_advdiff:
172      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
173      applies to files where Temperature & Salinity 2nd Order moments are used.
174    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
175      this uses a dynamically allocated internal state data structure
176      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
177      and requires a fortran 90 compiler
178    
179    checkpoint59q
180    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
181       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
182    o Refresh tutorial_global_oce_biogeo, notably:
183      - change bathymetry (put back seamounts in ACC, use hFacs)
184      - change EOS (POLY3 --> JMD95Z)
185      - use Bryan-Lewis vertical diffusivity
186      - use multidimensional advection
187      - remove old virtual virtual in dic pkg, now done through ptracer pkg
188      - change a couple of parameters in dic pkg
189    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
190    o pkg/obcs: change default to OBCSfixTopo = .true.,
191      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
192      - replace "debugMode" with "debugLevel .GE. debLevB"
193    o implementation of TAF directives for gchem,cfc,dic
194    o remove "exp5" (replaced by tutorial_deep_convection).
195    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
196      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
197      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
198      --> changes results in exp4, seaice_obcs
199    o tutorial_deep_convection :
200      update the set-up and increase resolution and domain size ; start
201      from pseudo initial conditions = output at t=120mn in order to see
202      something happening when running testreport.
203    o pkg/seaice: add os7mp as an advection scheme
204                  add check for advection schemes
205                  add a flag for restoring T and S underneath sea ice
206    o pkg/my82: add netcdf-support and diagnostics
207    o thsice pkg:
208      - Now hsMax limits snow height by turning it into ice following
209        flooding scheme (and now conserving energy)
210      - Slight rewriting of the formula in thsice_calc_thick.F
211      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
212      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
213    
214    checkpoint59p
215    o gchem / dic / cfc :
216      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
217      - add new parameter files: "data.dic" & "data.cfc" ;
218      - various re-arrangement in initialisation & header file ;
219      - fix tutorial_global_oce_biogeo for multi-threaded test.
220    o pkg/dic: test for "pickup_dic" file when restarting ;
221      if no pickup-file, can restart with a re-initialised pH (same as it did
222      before) providing pickupStrictlyMatch is set to False.
223    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
224      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
225    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
226      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
227    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
228     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
229       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
230    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
231       scheme to use for vorticty-term ;
232     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
233       (with default selectVortScheme, return to original discretisation)
234     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
235    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
236    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
237      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
238      also fix diagnostics VISCAHW & VISCA4W.
239    
240    checkpoint59o
241    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
242    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
243      move a few statemens out the main loop into separate loops
244    o pkg/shelfice:
245      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
246        (kg/m^2/s), does not break tests, because in verification/isomip,
247        rhoConstFresh=rhoConst (by accident)
248      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
249      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
250        new file model/src/seawater.F, so that they are available for all pkgs.
251      - convert potential temperature into in-situ temperature. This changes the
252        isomip tests => update tests
253    o add a flag writePickupAtEnd (default=true) to be able to suppress
254      writing a pickup at the last timestep
255    o tools/mpack-1.6 :
256      - disable automake (not working) and autoconf (not needed).
257      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
258        also cleaner with much less compilation warnings.
259    o pkg/profiles:
260      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
261      (for "less than 32 characters name" compiler requirement)
262    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
263      conditions that have a different sampling frequency than S/T/U/V obcs
264    o pkg/diagnostics (stats-diags):
265      - fix global Min/Max in case 1 processor get only empty tiles
266    o genmake2: replace (4 times)
267         make genmake_tc_1.o >> genmake_warnings 2>&1
268      with
269         COMM="$CC $CFLAGS -c genmake_tc_1.c"
270         echo $COMM >> genmake_warnings
271         $COMM >> genmake_warnings 2>&1
272      to make genmake2 always see the value of CC as specified in the optfile.
273    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
274      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
275      - modify verification advect_cs test to test SOM-advection on CS-grid.
276    o pkg/ctrl:
277      - Rewrite of ctrl_map_ini_ecco.F,
278        introducing a generic routine (ctrl_map_ini_gen.F).
279      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
280    
281    checkpoint59n
282    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
283      number in dedicate array "hdiag":
284      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
285        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
286      - many small changes (integer format) for large number of diagnostics
287      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
288        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
289    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
290      usingSphericalGrid, this allows to define the rotated grid coordinates
291      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
292      geographical coordinates according to the inverse of the rotation defined
293      by the Euler angles, so that Coriolis parameter and online-interpolation by
294      exf works with the geographical coordinates on XC/YC/XG/YG.
295      Naturally, this feature does not work with all packages, so some
296      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
297      profiles), because there the coordinates are assumed to be regular
298      spherical grid coordinates.
299    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
300      - introduce isopycnal diffusion coefficient control.
301    o tools/adjoint_options:
302      - additional control vector components.
303    o pkg/mnc: have mnc create marginally meaning full coordinate variables
304      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
305    o pkg/mypackage:
306      - add example of read/write pickup for state-var ;
307      - add entry points to the main code for state-vars diags & write-pickup.
308    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
309      transitions for useExfYearlyFields
310      - add new subroutine that determines the file to read from for
311        use*YearlyFields = .TRUE. and .FALSE.
312      - add a verification experiment to global_with_exf that tests
313        useExfYearlyFields with USE_EXF_INTERPOLATION defined
314    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
315      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
316      subroutines (which could be generated from a template, because they are
317      almost identical), for now they are included in obcs_prescribe_read.F for
318      simplicity
319    o pkg/exf:
320      - add a little more diagnostic to exf_interp_read (in analogy to
321        mds_read_field, can be turned off with debugLevel < debugLevA=1)
322      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
323        ugly but fast by unrolling short inner loops, inserting a unroll=8
324        directive in routine lagran, and splitting a loop and making do while the
325        outermost loop (the latter requires the intoduction of index arrays)
326    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
327    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
328      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
329    o verification/seaice_obcs: updated for restart test and latest options
330    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
331      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
332      for now this is only available for the C-grid code and also within
333      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
334    
335    checkpoint59m
336    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
337      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
338    o gad_som : fix flux output (& diagnostics) to have same units as other  
339      advection scheme fluxes (was previously multiplied by deltaT).  
340    o added verification/seaice_obcs both to test seaice open boundaries
341      and to provide an example matlab scrpt for generating them
342    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
343    o pkg/salt_plume: clean up salt_plume_frac.F to
344      remove redundancy in PlumeMethod 1 and 4
345    o pkg/kpp: added saltplume diagnostics
346    o pkg/obcs and pkg/seaice:
347      - do not set uice and vice to zero when OB*icefile are unspecified
348      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
349      - moved seaice tracer obcs after call to seaice_growth
350    o pkg/salt_plume: added various options for salt plume depth
351      criterion and for vertical distribution of the salt
352    
353    checkpoint59l
354    o pkg/ptracers: new version of ptracers pickup:
355      read meta file and write only fields which are needed to restart.
356      ( same logic as main pickup file ; also using pickupStrictlyMatch )
357    o pkg/seaice:
358      - add timescale for melting due to warm mixed layer as a means of
359        setting SEAICE_availHeatFrac more conveniently
360      - add a CPP-flag/runtime parameter check for flooding algorithm
361      - reformulated availHeat in seaice_growth.F to be independent of AREA
362    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
363      unit changes
364    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
365    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
366      SX vector computer.
367    o pkg/seaice:
368      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
369        seaice forcing fields can now be read only through pkg/exf
370      - removed some unused halos
371    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
372    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
373      or U/VICE from U/VWIND before computing U/VSTRESS
374    
375    checkpoint59k
376    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
377      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
378    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
379      all experiments pass when compile with un-initialised var. checking option.
380    o added pkg/salt_plume
381    o script to test restart (for now, in MITgcm_contrib/jmc_script)
382    o pkg/seaice: new read/write pickup version.
383      read meta file and write only fields which are needed to restart.
384      ( same logic as main pickup file ; also using pickupStrictlyMatch )
385    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
386    o lab_sea.hb87: modify the domain & update output.hb87.txt :
387      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
388      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
389      process. Fixed here by closing the domain at the Northern boundary.
390    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
391    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
392      a set of consecutive levels in/from a 3-D array.
393    o pkg/ptracers:
394      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
395      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
396    
397    checkpoint59j
398    o in pkgs: dic, obcs, offline, rbcs:
399      standard way to compute coeff. for time interpolation between 2 time reccords
400      which retains full precision (& make results less dependent on compiler).
401      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
402    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
403      packages instead of reading ice cover and wind speed separately
404    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
405     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
406      to allow to compile customized code before the update)
407    o cleaning-up:
408      - fix CPP instruction syntax in pkg/obcs
409      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
410        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
411      - fix some threads issue in IO parts.
412    o pkg/dic:
413      - add tons of "_d 0" (--> much better testreports !)
414       and then update outputs of tutorial_global_oce_biogeo
415    o pkg/mom_fluxform:
416      add a special version of momentum advection intended to conserve momentum
417      next to a bathymetry step or a coastline edge. (default = off = #undef)
418    o new read/write pickup version:
419      - for now, only implemented for main (mdsio) pickup file.
420      - write out only what is needed to restart; merge pickup_nh , pickup_ph
421        and main pickup together.
422      - read meta file; read only what is needed to restart; stop if a field
423        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
424        if it make sense (even if the restart is not perfect).
425      - if no meta file, assume that pickup to read corresponds exactly to
426        a pickup that would currently be written.
427      - read pickup written in the old format (until checkpoint59i) if it
428        recognizes an old meta file (no field-list).
429      - add a meta file in exp. which starts from a pickup: 2 cases:
430        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
431         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
432        b) a meta file describing the content of the associated pickup file
433         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
434    o pkg/mdsio & pkg/rw:
435      - new routine to read a meta file ; new set of routine to read
436        Multiple-fields file (with meta file).
437    o added open boundary conditions capability for seaice
438        HSNOW, HSALT, UICE, and VICE
439    
440    checkpoint59i
441    o adjoint:
442      * fix multiDimAdvection adjoint
443        (partial recomputation problem by TAF for fVerT(:,:,kDown)
444        and comlev1 size definition (maxpass vs. max. number of tracers)
445      * verification/global_ocean.90x45x15 adjoint now tests
446        NLFS and multiDimAdvection using DST3 (=30)
447      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
448    o pkg/kpp: add "_d 0" to real constant (if missing);
449      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
450      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
451    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
452      for internal parameters related to restart process (formerly from PARAMS.h)
453      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
454    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
455      as argument. (only atm2d & obcs write_pickup have not yet been updated)
456    o pkg/monitor:
457      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
458      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
459      - account for deep Atmosphere factor and density factor (anelastic)
460    o added open boundary conditions capability for seaice HEFF and AREA
461    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
462      thermodynamics
463      - requires a little reorganization, which affects the testreport results
464        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
465        so that now the conservative form is tested
466      - add a few comments
467    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
468    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
469    o add new diagnostics to seaice: advective, diffusive fluxes (only for
470      multidim-advection, for scheme 2 they are not filled) and transports,
471      thermodynamic growth rates
472    o change units of EmPmR (inside the code, + within coupling interface)
473      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
474      Affects results @ truncation level (cg2d match) and update output of
475       experiments: lab_sea(6), global_ocean.90x40x15(10),
476      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
477      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
478      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
479      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
480    
481    checkpoint59h
482    o pkg/exf:
483      - improve vectorization by moving if-statement out of loops in
484        exf_mapfields, exf_radiation
485      - exf_bulkformulae.F: introduce 2D fields and vectorize code
486    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
487    o testreport:
488      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
489        monitor & update offline_exf_seaice exp. output.
490      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
491    o pkg/seaice:
492      - bug fix in the evp solver: boundary conditions were affected be
493        masking of zMax/zMin (changes results)
494      - minor bug fix in boundary conditions in seaice_calc_strainrates
495        (changes results for no_slip)
496      - seaice_lsr.F: make interpolation of eta dependent on boundaries
497      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
498      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
499        stress formulation and no-slip boundary conditions
500    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
501      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
502    o pkg/seaice: a first HSALT time stepping equation has been checked in
503    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
504      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
505      without requiring DO-IF statements
506    o pkg/thsice:
507      use continuous power-law function for partition of energy between lateral
508      melting/freezing and thinning/thickening ; old code using step function
509      still available with #undef THSICE_FRACEN_POWERLAW
510      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
511    o testreport: change AD testing : check against results/output_adm.txt
512      using same scripts as for forward test.
513    
514    checkpoint59g
515    o adjoint testing: in preparation for changing testreport:
516      - output format: cost and grad written on separated lines
517      - ad output results in directory "results" (instead of "results_ad")
518    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
519    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
520    o pkg/ecco: allow user defined cost function contributions
521    o testreport:
522      Allow to choose (per experiment) the list of tested output variables
523       and the main variable (used to issue a pass/FAIL ) ;
524      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
525      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
526      Also modify printing of summary:
527       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
528       b) echo the list of tested variables in the individual summary.txt of
529          each experiment.
530    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
531      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
532      (but still depend on the tile decompostion of the domain).
533    o pkg/seaice: change a discretization detail to make the B-grid code
534      "more symmetric". This change is likely to remove all "ridges/leads" that
535      where quasi-aligned with the grid in B-grid solutions. It may also be
536      the solution to the stress coupling issues with the B-grid.
537    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
538      remove .cvsignore from input dir. (since testreport no longer run here).
539    o pkg/thsice:
540     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
541     - fix reshaping of sea-ice just after advection:
542       melt all the ice only if ice-volume is too small.
543     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
544       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
545     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
546    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
547      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
548    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
549      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
550      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
551      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
552      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
553      -> update output.txt
554    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
555     this affects truncation error: -> update output.txt of exp:
556      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
557      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
558    
559    checkpoint59f
560    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
561    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
562      a bounded range (in forward mode)
563    o pkg/ecco, ctrl, autodiff and mom_common:
564     internal parameter controls, completements of implementations
565    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
566    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
567      (not seem any difference in testing results).
568    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
569       at face corners.
570    o pkg/generic_advdiff:
571     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
572      loop range indices for computing vertical advection tendency
573      and do the calculation in the interior only (no overlap) ;
574      for now, only implemented for SOM advection (to save CPU time).
575     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
576    o exch2 adjoint
577      First set of changes:
578      - add exch2 hand-written adjoint templates
579      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
580        This will require cleanup in pkg/autodiff/*.F
581        (changed routines currently kept separate in verif. code/)
582      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
583        that used to hide exch2 or cubed-sphere specific code
584        (commented via 'cph-exch2')
585    o pkg/seaice
586      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
587    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
588       output of global_ocean.cs32x15.thsice .
589    
590    checkpoint59e
591    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
592      for B-grid vector (not yet tested) and C-grid vector (<- only used
593      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
594    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
595      (#ifdef ALLOW_SALT_PLUME)
596    o gather_2d/scatter_2d: removed halo regions
597    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
598      scheme and the corresponding test case (under front_relax dir). For now,
599      only available with Skew-flux form and not yet tested in realistic set-up.
600      adjoint: store directives updated, but gradient checks deteriorated,
601      so maybe GM/Redi adjoint is now broken.
602    o seaice adjoint
603      * add AREA, HEFF, HSNOW as control variable
604        (should not change lab_sea results)
605      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
606    o pkg/seaice:
607      * added computation of saltFlux in seaice_growth;
608        For time being, sea ice salinity is assumed constant
609        contribution of snow flooding to freshening of sea ice is neglected.
610        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
611        defaults to 0.0 in order to maintain backward compatibility.
612        Typical values for SEAICE_salinity are 4 to 10 g/kg.
613      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
614      * added SEAICE_availHeatFrac, which specifies fraction of surface level
615        heat content used to melt or grow ice
616      * commented out cap of HICE: it helps keep ice thinner
617      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
618      * applied OBCS T/S mask to HEFFM sea ice mask
619    
620    checkpoint59d
621    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
622     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
623     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
624    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
625     and change default value of parameter "GM_Small_Number";
626     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
627       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
628       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
629    o pkg/ecco: cost function when applying pkg/smooth to controls
630    o pkg/ctrl: add forcingPrecond run time parameter
631    o pkg/seaice:
632     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
633     - fix bug in metric terms of u-equation in LSR solver (implicit part),
634       changes verification/lab_sea
635     - rearrange implicit part of u-equation in LSR solver to make it easier to
636       read, understand, and debug. This causes changes at the truncation level.
637     - fix (serious) bug in the boundary conditions (sign error in the implicit
638       part) of the LSR solver. Changes all LSR results.
639     - fixed problem with HSNOW initialization to avoid thick snow when AREA
640       is initilized with small values - does not change lab_sea results.
641     - added HsnowFile initialization capability
642    o pkg/smooth: addition to model/src and pkg/ctrl so allow
643     initialization of pkg/smooth and application to control vector
644    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
645    o dependencies: pkg/profiles requires pkg/cal
646    o pkg/profiles:
647     - added option ALLOW_PROFILES_GENERICGRID
648         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
649         that interpolation information (grid points and coefficients) is provided
650         within the netcdf input files.
651         -> sample matlab scripts can be found in MITgcm_contrib/gael
652         that allow you to prepare netcdf input files.
653     - also modified: cleaner include statements, cleaner error print statements,
654       cleaner stops when error, and more tests of the netcdf input files consistency.
655    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
656    o pkg/seaice:
657     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
658       requires a new routine: seaice_diagnostics_fill.F
659     - make sure that seaice does not move if not forced (pressure replacement
660       method, Hibler and Ip, 1995), changes results
661     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
662     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
663       It is turned off by default (=-1.), because it changes the results.
664     - make it possible to read AREA from a file, too.
665    
666    checkpoint59c
667    o add S/R and diagnostics for oceanic mixed-layer depth
668    o move GMRedi call after all vertical mixing schemes (including KPP)
669    o pkg/thsice:
670     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
671      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
672    o pkg/obcs:
673     - bug fix for balance code
674    o pkg/seaice:
675      - allow values of SEAICE_elasticParm > 1
676      - add new parameter SEAICE_evpTauRelax as an alternative
677        to SEAICE_elasticParm
678      - make lsr boundary conditions free slip (by default), changes result
679      - add code for no slip boundary conditions for lsr
680      - set minimum of zeta to zero (and not 4e8) (changes results)
681      - add a cap on AREA after advecting AREA if seaice_growth is not called
682    o change calculation of Visbeck K:
683      - no longer depend on tapering scheme; instead, compute slope (limited
684        by GM_maxSlope). this is equivalent to what was comuted before with
685        clipping or linear tappering.
686      - fix vertical averaging (wrong by 1/2 level)
687      - leave the old version (but will not be maintained) within
688        #ifdef OLD_VISBECK_CALC / #endif
689      - update output of exp. ideal_2D_oce
690    o change error catch in calc_r_star to improve vectorization
691    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
692      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
693    o adjoint:
694      Re-organized adjoint checkpointing according to Matt Mazloff
695      (but with modifs/completions/cleanups)
696      Storing is now bundled into large arrays to optimized I/O
697      (and second step in cleanup of the_main_loop)
698    
699    checkpoint59b
700    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
701      - export/import (between ocean & coupler) fields needed for ocean DIC.
702    o pkg/seaice:
703      - get rid of three more exchanges seaice_calc_viscosities (required
704        different loop boundaries in seaice_lsr and seaice_ocean_stress)
705      - bug fix in seaice_ocean_stress (update of lab_sea required)
706      - reduce loop boundaries to necessary minimum also in seaice_evp
707      - go back to the old way of computing deltaC/Z as the adjoint likes that
708        better
709    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
710      passive tracer to an Age Tracer) + update output.txt
711    o pkg/exf:
712      - implement A-grid / C-grid selection for wind-stress input files.
713      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
714      for now, in exf_bulk_largeyeager04.F only :
715      - change implementation for case where windspeed + 2. components wind-stress
716        are read-in. AND use rhoConstFresh to convert evap.
717    o pkg/seaice:
718      - use correct EXCH_UV for wind-forcing (on A-grid).
719      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
720        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
721    o pkg/exf:
722      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
723      EXF_INTERPOLATION:
724      - merge global_with_exf/code version of exf_interp_read.F
725        to the main code ;
726      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
727        reading the file ; Important: This options needs to be defined to recover
728        previous code.
729        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
730      - no longer loose real*8 precision along the way when using exf_iprec=64.
731    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
732      - change discretisation of evp-solver in order to avoid another exchange
733        (changes lab_sea) and clean up a little
734      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
735        help the adjoint (this also changes the results slightly)
736      - add a few "_d 0" where they had been missing in seaice_evp.F
737      - cleaning up: remove unused seaice_calc_rhs.F
738    o pkg/exf: some cleaning-up:
739      - change various "constants" into runtime parameters
740      - cleaned-up Large&Yeager04 routine which should eventually
741        replace exf_bulkformulae.F (changed names of S/R and CPP)
742        and merged various ALLOW_ATM_WIND options
743     only used with thsice pkg (in thsice_get_exf.F):
744      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
745        which are used when useStabilityFct_overIce=TRUE (= the default)
746      - change default values of ice & snow emissivity and scale downward LW
747        by ice & snow emissivity.
748    o pkg/thsice:
749     fix few little problems, in thsice_calc_thickn.F:
750      - growth vertically (and not laterally) if iceFrac == iceMaskMax
751      - melt only laterally if hIce < hThinIce (as the comments say)
752      and in thsice_extend.F:
753      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
754      - start to form ice as soon as the minimum ice-volume is reachable.
755     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
756      and cpl_aim+ocn
757    o pkg/kpp
758     - move computation of surface related input fields to KPP into a new
759       subroutine kpp_forcing_surf.F
760     - remove wrong (within bi,bj loops) EXCH calls.
761     - little cleaning (add argument myThid in last position, cvs header ...)
762     - for now, fix conservation problem by exchanging KPPviscAz (may not
763       be the best fix)
764    o pkg/seaice
765     - check for inconsistent evp parameter/cpp-flag combination
766     - remove leftover errIO flat for obsolete name list error handling
767    o OpenAD
768     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
769    
770    checkpoint59a
771    o pkg/seaice: some parameter clarifications and a little bit of clean up
772    o pkg/thsice: rename run-time parameters:
773       himin       -> hIceMin
774       himin0      -> hThinIce
775       hihig       -> hThickIce
776       i0          -> i0swFrac
777       transCoef   -> bMeltCoef
778       frac_energy -> fracMelting
779      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
780       with default values (for now) that do not change the results.
781      remove old version of thsice vars advection in pkg/seaice.
782    o in FFIELDS.h:
783      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
784      - make pLoad & sIceLoad always available (but still only used if
785         ATMOSPHERIC_LOADING is #define).
786    o pkg/kpp: replaced _KPP_RL with _RL
787    o bug fixes for vertical diffusivity computations when both KPP and
788        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
789        are no longer updating the vertical diffusivity array
790        (passed as argument) but are (re-) setting those arrays.
791    o pkg/seaice: fix bug in evp solver, while doing that
792      - change (improve?) discretization of stress computations for both
793        cgrid-lsr and evp solver
794      - add a new routine to compute strain rates
795      - the above changes lab_sea results
796      - add no slip conditions for evp solver (off by default), lsr-version
797        may follow
798      - fix exchange for shear at Z-points (does not change lab_sea)
799      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
800        (to force the user to pick a time step since there is not "safe" way
801        of choosing it)
802      - add principal stress diagnostics
803      - rearrange fields for evp a little to avoid having to call a: too many
804        exchanges and b: exchanges for stress trensor components which we do
805        not have.
806      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
807        of evp, complete rewrite for lsr case (latter is does not yet work
808        in all cases)
809    o pkg/kpp: add code to have mixing in shelf ice caverns
810      - add myThid to all kpp routines (long overdue)
811    
812    checkpoint59
813    o pkg/exf:
814      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
815        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
816      - move exf header files from lower_case.h to UPPER_CASE.h ;
817        add missing cvs Header & Name
818      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
819      - add namelist param. selectStressGridPosition, exf_monFreq
820      - retire many _CLIM routines, and remove data.exf_clim
821        + params moved to data.exf
822        + climsst, climsss now handled by exf_set_gen, i.e.
823          climss?period=0 refers to constant field,
824          climss?period=-12 to monthly forcing
825      - split up namelists in data.exf
826    o pkg/seaice:
827      - remove seaice_exch and seaice_exch_uv
828      - remove superfluous exchange of theta
829      - add myThid to seaice_budget_ocean/ice
830      - add new interface for atmospheric wind forcing (C-grid only)
831        + new routine
832        + two new field (taux, tauy for stress over ice)
833        + removed one global field (DAIRN) for C-grid case only
834    o pkg/thsise
835      - 2nd set of modifs for thsice adjoint in conjunction with exf
836    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
837    
838    checkpoint58y_post
839    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
840      vertical diffusivity, similar to that in MOM4; turned on using
841      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
842      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
843    o Added capability for 3D specification of background vertical diffusion
844      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
845      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
846      "data" file that contains the 3D vertical diffusivity coefficients.
847    o ice dynamics (pkg/seaice) with thsice thermodynamics:
848      - add code within pkg thsice to advect & diffuse sea-ice fields
849      similar to (and will replace) what has been added in  seaice_advdiff.F,
850      but: - conserving Mass, Heat & Salt.
851           - better when using non-linear advection scheme (not yet fully tested)
852           - can also be used in atmospheric set-up (for now, only the diffusion).
853    
854    checkpoint58x_post
855    o IO option for global-file compact format:
856      - add options when generating topology (utils/exch2/matlab-topology-generator)
857      - add I/O capability (pkg/mdsio).
858      - adapt utils/matlab/rdmds.m to read this format.
859      for now long-line format not yet supported by pkg/mdsio (& exch2).
860    o shelfice: add a few diagnostics
861    
862    checkpoint58w_post
863    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
864      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
865      (and replace horiVertRatio in NH code).
866      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
867                         and tutorial_plume_on_slope (sensitive to truncation)
868    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
869      directly to drive seaice model (C-grid only)
870    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
871     - reintroduce computation of wind from stress,
872     - compute tau (in exf_bulkformulae.F) from windstress averaged to
873       mass points to avoid tau = 0
874     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
875    o rdmnc.m: make it work with "global" files created with gluemnc
876    o rdmnc.m : some improvements in dealing with singleton dimension
877      (tested on all testreport mnc output files).
878    o genmake2: disable pkg/profiles if netcdf test fails.
879    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
880    o move call to cal_readparms up to make calendar parameters/variable available
881      to all packages
882    
883    checkpoint58v_post
884    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
885      useDynP_inEos_Zc tested.
886    o pkg/exf: changes to properly interpolate/mask/scale initial fields
887    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
888      and portions thereof.  See read_cs.txt for description and examples.
889    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
890      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
891      following the great-circle arc between those 2 points.
892    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
893      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
894    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
895     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
896     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
897     - still needs work (not working with some options ; efficiency to improve)
898       and serious testing.
899     - use this scheme for temperature & salinity in 2 advection test exp.:
900       advect_xy & advect_xz, respectively.
901    
902    checkpoint58u_post
903    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
904    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
905    o testreport: add option "-skipdir" to skip some test.
906    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
907      momentum calculation.
908    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
909    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
910      remove checkpoint.F and the_correction_step.F (no longer used);
911      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
912    o add option (linFSConserveTr) to correct for tracer source/sink due to
913      Linear Free surface
914    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
915    o pkg/thsice: fix reading mnc-pickups
916    
917    checkpoint58t_post
918    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
919    o pkg/mdsio:
920     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
921       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
922       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
923     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
924     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
925       either MDS_READ_FIELD or MDS_WRITE_FIELD )
926     - new S/R (to replace MDSWRITEMETA), which allows to write more
927       informations (variable names, time ...) to meta files.
928     - modify rdmds.m to give back the meta file content.
929    o pkg/diagnostics: change vertical interpolation to be safer, and more
930       flexible (define p-levels to interpolate to in data.diagnostics);
931      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
932       diagnostic pointer.
933    o pkg/seaice: more cleaning up of seaice_growth, added many comments
934    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
935    o fix multi-category seaice:
936     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
937       SEAICE_MULTICATEGORY
938     - fix short wave heat flux
939    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
940       and allow to use EVP solver. Change forward lab_sea: test both EVP
941       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
942    o Initial check-in of lab_sea adjoint
943      (very similar to natl_box_adjoint/code_seaice)
944      * used C-grid and EVP solver
945      * used KPP, GM/Redi
946      * uses inAdExact=.TRUE.
947      * gradient checks fail for both ADM and TLM
948        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
949        f.d. gradients actually seem more problematic than ADM, TLM gradients;
950        issue is related to forward mismatch between g77 an ifort
951    o pkg/seaice: overhaul of thermodynamics
952     - growth.F and groatb.F are replaced by new routine seaice_growth.F
953     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
954     - move a few global fields out of SEAICE.h into seaice_growth.F and
955       make them 2D (FICE/QNETO/ ...)
956     - remove FO (it is the same as QNETO)
957     - introduce a few local fields to avoid modifying external fields such
958       as atemp, etc.
959    
960    checkpoint58s_post
961    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
962      changed exf_set_gen.F so that
963        genperiod=0 means input file is one time-constant field and
964        genperiod=-12 means input file contains 12 monthly means
965    o CG2D: use pre-computed solver main-diagonal (stored in common block);
966      this affects truncation error ; generate new output file for exp. which
967      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
968        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
969        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
970        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
971        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
972        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
973    o start implementation of deep-atmosphere and anelastic formulation
974    o verification: remove 2nd copy of input files and use script "prepare_run"
975      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
976    o mom_common/vecinv/fluxform: fix a few initialisation isssues
977    o profiles: fix for multithreaded case
978    
979    o diagnostics: rename few diags:
980      s/'PRESSURE'/'RCENTER '/g
981      s/'TICE    '/'oceFreez'/g
982      s/'TAUX    '/'oceTAUX '/g
983      s/'TAUY    '/'oceTAUY '/g
984      s/'SWFLUX  '/'oceQsw  '/g
985      s/DIFx/DFxE/g
986      s/DIFy/DFyE/g
987      and add few ocean-forcing diagnostics:
988      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
989    o modifications to pkg/seaice/growth.F and budget.F, which change results of
990      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
991      as actual snow thickness.  It now refers everywhere to effective snow
992      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
993    
994    checkpoint58r_post
995    o modifications to pkg/seaice/growth.F, which change results of
996      lab_sea experiment: fixes pertain to melting snow over open water, to
997      masking EVAP under sea ice, and to using the correct AREA variable for
998      computations of EVAP, PRECIP, HSNOW, and GHEFF
999    o add ability to read bathy, salt, and theta using MNC (off by def)
1000    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1001      both are turned off by default and do no change any results
1002    o seaice advection with pkg/thsice: a step toward the use of non-linear
1003      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1004    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1005      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1006      in natl_box (affects results @ truncation level: update output.txt)
1007    o multi-threading and IO:
1008      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1009      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1010        (needed to work with SingleCpuIO): tested in all verif. exp.
1011    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1012      affects the results (but none of the verification test uses this scheme).
1013    o Adding some pkg/diagnostics capability to pkg/seaice
1014      (will certainly be subject to changes)
1015    o ctrl: adding new control variables:
1016      lwflux, lwdown, evap, snowprecip, apressure, runoff
1017    
1018    checkpoint58q_post
1019    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1020      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1021      high_res_cube configuration by 4% on Columbia.
1022    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1023      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1024      dynamical allocation (seems to work in multi-threaded).
1025    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1026      single CPU io) so that TAF does not have to see EESUPPORT.h
1027    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1028    
1029    checkpoint58p_post
1030    o obcs: stop if obcs is used with useCDscheme = .true.
1031    o shelfice:
1032     - fix a sign error so that no slip at shelfice interface works
1033     - remove stop for combination non-hydrostatic code and shelfice. That does
1034       not mean, that the results are correct, but at least they are numerically
1035       stable
1036    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1037    o added adjoint exch routined for all exch*3d* routines
1038      and updated flow directives
1039    
1040    checkpoint58o_post
1041    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1042      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1043    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1044      and clean-up reading/writing of pickup files.
1045    o fix local version of read/write pickup (NH part) in rotating_tank/code
1046    o simplify EXCH interface:
1047     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1048     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1049    o added the regrid package
1050    o shelfice:
1051     - add a simple boundary layer scheme to reduce noise
1052     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1053    
1054    checkpoint58n_post
1055    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1056       local variable (not in common block).
1057    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1058      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1059      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1060        to work with SingleCpuIO.
1061    o add "_d 0" to real constant of pkg/cfc subroutines ;
1062       update exp. cfc_exemple & tutorial_cfc_offline output files.
1063    o multi-threading and IO:
1064      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1065        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1066      - barrier before and after reading.
1067      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1068      - avoid using MDS_WRITELOCAL for LAND pkg output.
1069      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1070        common-block variables ; Allows multi-threading with master-thread IO.
1071    o change default MAX_NO_THREADS from 32 to 4 ;
1072      and stop cleanly when MAX_NO_THREADS is too small.
1073    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1074    
1075    checkpoint58m_post
1076    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1077       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1078    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1079       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1080       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1081    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1082        add MITgcm_tutorials (= code + all the tutorials)
1083    o ecco, option to compute cost for total ssh (mean+anom)
1084    o consistent with addition of ptracer and ssh in pkg/profiles
1085    o profiles: adding ptracer and ssh
1086    o testreport: change multi-test output-file name
1087      (from output.txt.{name} to output.{name}.txt)
1088    o profiles: now ok for mutli-tiles case
1089    o seaice: add 4 parameters for different advection schemes for area,
1090      (effective) seaice thickness, enthalphy, and snow height. Their default
1091      is the standard parameter SEAICEadvScheme
1092    o calc_gw:
1093     - add cosFacU in zonal viscous flux (harmonic.visc.).
1094     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1095       of tutorial_plume_on_slope.
1096    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1097    o calc_gw: true flux-form, account for horizontal grid spacing.
1098      update rotating_tank results, but not plume_on_slope (affected at
1099      truncation level, 11 digits).
1100    
1101    checkpoint58l_post
1102    o calc_gw:
1103     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1104     - remove side-drag for now (need to fix it); update plume_on_slope results.
1105     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1106    o commit code to make SST/SSS weights spatially variable
1107      (based on either variable in-situ or variable initial T/S weights)
1108    o pkg/ecco:
1109      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1110        now based on horizontally varying weights wthetaLev, wsaltLev
1111      * cost_averagesflags now returns year indices in addition to day, month
1112      * sflux balance is performed on annual basis
1113        (sflxumm, sfluxmm2, bal_sfluxmm)
1114      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1115        including separate counting and multipliers
1116    o pkg/rbcs
1117      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1118    
1119    checkpoint58k_post
1120    o testreport:
1121     - always build in dir. "build" (if not there, mkdir build instead of building
1122       & running in input)
1123     - run in dir run (if it exists), in build otherwise.
1124     - call prepare_run (if input/prepare_run exists)
1125     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1126    o pkg/exf modifications to interpolation and rotation routines for more
1127       reasonable treatment of North Pole singularity: for tracers North Pole
1128       value is set to northernmost zonal-mean value, for zonal velocity it is
1129       set to zero, and for meridional velocity it is set to northernmost value.
1130    o pkg/exf/exf_check_range.F
1131     - add tile index to diagnostics and move stop statement to the very
1132       end of the routine.
1133    o pkg/diagnostics: (diagnostics_main_init.F)
1134      define title of isomorphic variables according to the current config.
1135    o pkg/thsice with pkg/seaice dynamics:
1136    - fix domain of computation (interior only, required for exf) and do exchanges
1137    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1138    o towards a standard way of dealing with multi-threading in MONITOR
1139      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1140    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1141       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1142    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1143    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1144    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1145       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1146    o tracer advection:
1147     - clean-up and simplify calc_common_factors.F
1148     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1149       advection subroutine (but still not used within DST advection S/R)
1150    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1151    
1152    checkpoint58j_post
1153    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1154      from file (collects calls previously in FORWARD_STEP)
1155    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1156    o adjoint store dir. adjusted accordingly
1157    o genmake2
1158      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1159    
1160    checkpoint58i_post
1161    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1162      on wind stress (SEAICEstressFactor defaults to 1.)
1163    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1164      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1165    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1166      on CS-grid: no longer loosing mass.
1167    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1168    o pkg/ggl90: fix sloppy output and fix a bug
1169    o pkg/seaice: added SEAICEuseEVPpickup parameter
1170      - Set to false in order to start EVP solver with
1171        non-EVP pickup files when using SEAICEuseEVP
1172      - fix sign error in diffusion in seaice_calc_rhs
1173    
1174    checkpoint58h_post
1175    * Modifications for bottom topography control
1176      o replace hFacC by _hFacC at various places
1177      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1178      o add non-self-adjoint cg2d_nsa
1179      o update autodiff support routines
1180      o re-initialise hfac after ctrl_depth_ini
1181      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1182    * Adding verification for 5x5 box (4-layer) bottom topography control
1183    
1184    checkpoint58g_post
1185    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1186       used for mean seasonal cycle, mean diurnal cycle); add an example
1187       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1188    o pkg/ggl90:
1189      - add parameter (minimum surface kinetic energy)
1190      - fix bug (avoiding division by zero)
1191    o couple pkg/thsice to pkg/seaice:
1192      - modify advection in seaice to accomodate new scalar fields to be advected
1193      - only muliDimAdection scheme work with seaice/thsice
1194      - mapping of thsice-variables to seaice-variables, back and forth
1195      - does not break the verification experiments, but does not give the
1196        desired results either
1197    o pkg/seaice
1198      - make (default) second order advection a bit less confusing?
1199    
1200    checkpoint58f_post
1201    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1202      to pkg/seaice):
1203      - new routines thsice_map_exf and thsice_get_exf provide the interface
1204      - add an additional formal parameter to thsice_solve4temp
1205    o pkg/exf:
1206      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1207      - correct Stefan-Boltzmann constant
1208      - new parameter for longwave surface emittance
1209      - separate some stuff from exf_bulkformulae into new routines  
1210        exf_radiation, exf_wind
1211      - add new parameters and constants: longwave emissivity for ocean, ice
1212        and snow, evaporation parameters over ice
1213      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1214        either wind from stress or stress from wind
1215    o pkg/thSIce:
1216    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1217    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1218       and THSICE_CALC_THICKN
1219    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1220    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1221      to make debugging easier.
1222    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1223    o pkg/bulk_force:
1224      - clean-up comments and parameters ;
1225      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1226    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1227      generate new output for test-experiment: aim.5l_cs.thSI
1228    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1229      testreport accordingly
1230    
1231    checkpoint58e_post
1232    o SEAICE_CGRID adjoint done
1233    o R_STAR adjoint implemented.
1234      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1235      * need to sort out init. of h0facc, etc.
1236    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1237      to be able to use it in pure forward.
1238    
1239    checkpoint58d_post
1240    o upgrade simple test-experiment to tutorial example:
1241     step.1: duplicate the experiment and (step.2) will remove the old copy.
1242      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1243      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1244      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1245      tutorial_global_oce_biogeo    <- copy of dic_example
1246      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1247      tutorial_plume_on_slope       <- copy of plume_on_slope
1248      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1249      tutorial_global_oce_optim     <- empty for now (David ?)
1250      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1251     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1252    o correct a sign problem in cost_scat.F
1253    o obcs and ptracers: fix boundary conditions for advections schemes
1254      with larger stencil
1255    o thsice adjoint: start
1256    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1257      completeness
1258    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1259      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1260    o ptracers adjoint:
1261      * avoid extensive recomputatations
1262      * fix missing re-init. of gptr (missed by TAF)
1263    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1264      me to turn off the excessive output to STDOUT that this package produces
1265    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1266      and add those terms in Vector-Invariant formulation.
1267    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1268      if the control period (xx_hfluxperiod etc) is 0
1269    o in profiles pkg, clean routines and fix details
1270    o in ecco pkg, reading ssh data:
1271      fix problem in case the model does not start at iter0=0
1272    o fix mnc-pickup/restart for ptracers
1273    o new package prifiles:
1274      code to compute profile-based cost by Gael Forget
1275      (modifs in ecco, ctrl, autodiff)
1276    o Benign bug fix in initialization (spotted by M. Mazloff) of
1277      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1278    
1279    checkpoint58c_post
1280    o adjoint: finish NLFS adjoint and provide reference output in
1281      verification/global_ocean.90x40x15/results_ad_nlfs
1282    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1283      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1284      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1285      with SEAICE_CGRID defined.
1286    o move calendarDumps from "data" to "data.cal" and clean-up the code
1287      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1288    o add useEXF & useCAL flags (for now, set in hard-coded way)
1289    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1290      (were missing in NH mode, and wrong in quasihydrostatic mode).
1291      waiting for Chris updated version of calc_gw to add those CALLs.
1292    o fix bug in quasihydrostatic S/R ;
1293      add a test for this option: global_ocean.90x40x15.qshyd
1294    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1295      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1296    o add on/off flag useOffLine for package OFFLINE
1297    o seaice:
1298      - modify advection so that it works also on the C-grid
1299      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1300        problem in multi-tile runs with C-grid
1301      - add flags for clipping ice velocities and/or masking solver forcing
1302      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1303        C-grid solver
1304      - added a few comments to seaice_diffusion.F
1305      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1306        are now exclusive)
1307      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1308        required re-ordering the code a little:
1309       + make DAIRN global variable (defined in SEAICE)
1310       + move computation of the viscosities eta and zeta into a new separate
1311         routine (because I need to recompute them in seaice_ocean_stress.F)
1312    
1313    checkpoint58b_post
1314    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1315      update output.txt of exp. aim.5l_cs.thSI
1316    o various mnc cleanups and improvements:
1317      + shrink lookup tables by factor of ~4
1318      + better error reporting when running out of lookup space
1319      + able to handle longer path/file names (up to 500 chars)
1320    o adjoint:
1321      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1322      - TBD: "hidden" mom_vecinv recomp. in dynamics
1323    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1324     (allow to differentiate between forcing components using new integer flags:
1325      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1326     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1327    o ecco
1328      - enable trend removal from SSH anomaly obs.
1329    o adjoint
1330      - a fix for PmEpR when #undef EXACT_CONSERV
1331      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1332      - try to fix "hidden" recomp. in forward_step for NLFS
1333        (NLFS seems broken sometimes after I checked it in)
1334    o seaice:
1335     - add c-grid version of the dynamic solver:
1336       + three new routines that are the c-grid substitute lsr, dynsolver
1337         and ostres
1338       + put a few fields that were local to dynsolver into global common
1339         blocks, so that I can move the computation of stresses etc into
1340         seaice_lsr (saves coding but may break the adjoint).
1341     - replace more hardwired parameters by runtime parameters
1342     - add ice masks that mask the rhs of the implicit solvers where there
1343       is no ice (commented out in seaice_dynsolver, because i am not sure
1344       if this works properly), eventually this should replace the clipping
1345       of ice velocities in seaice_dynsolver to +/-40cm/s.
1346    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1347      include it only where its needed
1348    o move balancing of fluxes before the call of external_forcing_surf
1349    o seaice:
1350      - correct units of turning angles (now they are really in degrees)
1351      - move computation of GWATX/Y out of main routine into dynsolver
1352      - initialize GWATX/Y in seaice_init
1353    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1354      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1355    o seaice: add runtime flags for turning angles (default to zero)
1356    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1357      and trend from exf forcing and ctrl control adjustments
1358    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1359      (since checkpoint57x_post)
1360    o change the default rotation period to 86164.s = the Earth rotation
1361    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1362      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1363    o seaice advection: add code for choosing between the default (2nd order
1364      central differences) and multiDim advection schemes provided by
1365      pkg/generic_advdiff
1366    o seaice:
1367      - removed all references to SEAICE_GRID.h fields from
1368        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1369        (cubed-sphere configuration will change a little)
1370      - grid computations in seaice_init are obsolete now.
1371      - cleaned up code a little so that is easier to read (hopefully).
1372      - added new (better?) discretizations of default advection and diffusion
1373        (turn on with SEAICEuseFluxForm)
1374      - replace 1 in 3d global fields by kSurface in growth.F
1375      
1376    checkpoint58a_post
1377    o seaice:
1378      - bug fix in advect.F
1379    o shelfice:
1380      - separate shelfice load anomaly from pload (breaks with time
1381        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1382        Its default is 0., but it may be computed more cleverly from (unknown)
1383        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1384        done offline. A good approximation of the pressure load anomaly is
1385        necessary to avoid large initial adjustment processes underneath
1386        deep-reaching shelfice.
1387      - small fix in ISOMIP shelfice_thermodynamics
1388      - add more sophisticated thermodynamics of Hellmer (1989), this is
1389        now the default
1390      - give a few constants more intuitive names
1391    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1392      if bulk formulae are used in long integration (especially EmPmR). Turn
1393      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1394      if balancePrintMean, the imbalance that is substracted is printed to
1395      STDOUT.
1396    o fix bug (typo) in obcs_apply_eta.F
1397    o add a new package shelfice which enables us to model the circulation
1398      underneath shelf-ice with draughts of hundreds of meters.
1399     - works
1400     - to do: + include improved thermodynamics
1401              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1402                instead of new field kTopC
1403              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1404                instead of new field R_shelfIce and new code in ini_depth.F
1405                and ini_mask_etc.F?
1406              + adjust vertical mixing schemes?
1407    o seaice pkg:
1408     - add a cpp-flag to include a simple formula for a salinity dependent
1409       freezing point of sea water at the surface
1410     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1411       meridional stresses are now different (and hopefully correct)
1412    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1413       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1414       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1415    o pkg/diagnostics: add options and parameters for regional-statistics
1416       diagnostics ; define regions by reading a region-mask from a file
1417       (might add other options later)
1418    o pkg/bulk_force:
1419     - add option and parameters to use AIM surface-flux formulae.
1420     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1421       others forcing fields (defined in PARM05, parameter file "data") are loaded
1422       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1423     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1424     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1425     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1426       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1427     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1428    
1429    checkpoint58
1430    o add "--embed-source" option to genmake2 which, when the supporting
1431      tools can be compiled (as determined by genmake2) will turn on the
1432      embed_files package which then embeds the entire MITgcm source code
1433      (*.[fFhc] + Makefile) used for the build within the executable
1434      - requested by CNH but off by default
1435      - adds a paltry <9MB to the mitgcmuv executable in most cases
1436      - only writes the output when useEMBEDSRC in eedata is true
1437    o clean up 3-dim. relaxation codes:
1438      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1439      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1440      * Thanks to Tom Haine for testing!
1441    
1442    checkpoint57z_post
1443    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1444      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1445    o fix the pickup behavior for obcs in combination with ptracers
1446    o fix a bug in ptracers_external_fields_load
1447    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1448      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1449    o transfered surface NH pressure to eta field (if exactConserv).
1450    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1451         and update lab_sea output.txt file.
1452    o completing 3-dim. relaxation code: additional term
1453         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1454      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1455      * At compile time, in "EXF_OPTIONS.h" set
1456          #define  ALLOW_CLIMTEMP_RELAXATION
1457          #define  ALLOW_CLIMSALT_RELAXATION
1458      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1459          tauThetaClimRelax3Dim = 15552000.0,
1460          tauSaltClimRelax3Dim  = 15552000.0,
1461      * 3 cases:
1462          1) Use a constant-in-time 3-dim. field
1463          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1464          3) Real-time relax. to time-evolving prescribed field
1465    o Adding Laplacian-type smoothness constraint on
1466      initial and boundary (forcing) controls (ic, bc)
1467      * enable at compile-time via
1468        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1469      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1470      * Absolute scale somewhat unclear so far
1471      * no area weighting was included since no other cost term does so far
1472    
1473    checkpoint57y_post
1474    First step for a NLFS adjoint
1475    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1476    o new init. routines for calc_r_star, calc_surf_dr
1477    o still need to deal with ini_masks_etc
1478    o testreport seemed happy
1479    checkpoint57y_pre
1480    
1481    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1482    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1483    o add new offset feature to offline pkg (plus minor cleanup)
1484    o cfc fixes for final year of integration
1485    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1486      be in GCHEM_OPTIONS).
1487    
1488    checkpoint57x_post
1489    o fix testreport Pb in multiple test experiment.
1490    o cleanup our namelist syntax in verification:
1491      - make it more F95 standards compliant (some work still needed)
1492      - allows the vast majority of our tests to work with gfortran
1493    o Non-Hydrostatic:
1494     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1495     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1496    o Allow to apply AB on T,S rather than on AB(gT,gS):
1497     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1498     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1499       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1500     - need a "clever" read_pickup to restart from the other AB formulation
1501    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1502    o remove some unused variables (reduces number of compiler warnings)
1503    o adjoint
1504      * Disable useVariableViscosity for adjoint for time being
1505        (there are a number of extensive recomputations)
1506      * Initialize certain variables needed for adjoint
1507    
1508    checkpoint57w_post
1509    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1510                 fix the singleCpuIO RS version of MDSWRITEFIELD
1511       and add a WARNING if using globalFiles=T with multi-processors.
1512    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1513      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1514    o tracer advection scheme:
1515      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1516       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1517       was not very convenient).
1518      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1519       (further tests needed for the implicit DST & Flux-Limiter schemes).
1520    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1521      and sRef for convenience, handy, when you want to initialize
1522      ptracers in a large domain with a constant non-zero value. Also,
1523      untangle ptracers_init.F a little.
1524    
1525    checkpoint57v_post
1526    o change dome exp. to use variable viscosity in side-drag terms.
1527    o remove all the files from the cfc_offline test since they are now
1528      incorporated into tutorial_cfc_offline which has been producing
1529      identical results for a few days of testing
1530    o add new parameter: sideDragFactor to enable half-slip-side BC
1531      and change side-drag S/R to use viscosity from mom_calc_visc
1532      (can switch back by setting sideDragFactor=0.); affects results at
1533      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1534       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1535    o vorticity & strain are now computed without masking, to account for
1536      no-slip-side BC in variable viscosity calculation ; mask is applied
1537      anyway later on, before computing advection/coriolis terms.
1538    o modify exp4 to test new obcs support for reading from external files
1539      and for passive tracers
1540    o fix behavior of ptracers_monitor when monitor output is written to a
1541      netcdf-file; still not independent of monitor.F (writes in the same
1542      file).
1543    o change default value of tRef (put a uniform, meaningful value for ocean
1544      & atmos) and initialize sRef (was missing, as Martin mentioned).
1545    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1546      to be proportional to enstrophy dissipation length.  Thus,
1547       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1548      This is now consistent with Smagorinsky and with the manual.
1549    
1550    checkpoint57u_post
1551    o OBCS and PTRACERS: add open boundary support for passive tracers
1552      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1553        OB-values from file; this is not different from the way theta and salinity
1554        are treated
1555      - however, Orlanski-radiation conditions are not supported, and the model
1556        will stop if you use pTracers and Orlanski at the same time.
1557      - beefed up the rountine obcs_external_fields_load: now only those open
1558        boundary values are overwritten with values from files for which there
1559        are really files, otherwise the OB-fields remain untouched. This makes
1560        it possible to use different OBs at different ends of the domain (as
1561        with EXF)
1562    o reduce number of exch calls in shap_filt (s2).
1563    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1564      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1565    
1566    checkpoint57t_post
1567    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1568    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1569      same truncation, independent of the face number: affects affects several
1570      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1571    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1572      note that biharmonic viscosity + no-slip was not tested in any experiment.
1573    o fix bug in non-linear free-surf side-drag ; generate new output for
1574      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1575    o make mnc honor the writeBinaryPrec flag for most kinds of output
1576    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1577    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1578      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1579    o add brackets in multi-terms sum to get same truncation, independent of
1580      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1581      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1582    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1583      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1584      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1585      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1586      Suggested values of viscosity parameters found in mom_calc_visc.
1587      Many new viscosity diagnostics available.
1588    
1589    checkpoint57s_post
1590    o Add clearing-house for viscosity calculations, mom_calc_visc and
1591      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1592      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1593      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1594      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1595      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1596      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1597      ViscAhStrain and viscAhTension are now retired.
1598    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1599    o In response to JMC's bug report, genmake2 now ignores any soft-links
1600      that it finds in the *current* directory when searching for files.
1601      Soft-links found in any other source directories will still work as
1602      they did before.
1603    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1604      a C routine to unlimit the stack size
1605    o mnc-ify pkg/aim snapshot vars
1606    o mnc-ify pkg/land as requested by Daniel
1607    o various changes to mnc including:
1608      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1609      - output can now be grouped so that all files within a group
1610          change the ITER portion of their names in lock-step together
1611      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1612          and works with both EXCH1 and EXCH2 (but needs more testing)
1613      - writing works for all verification test cases w/ g77 on Linux
1614    
1615    checkpoint57r_post
1616    o make MNC variable initialization happen earlier
1617    o add diagnostics for (almost) each term of the momentum Eq.
1618    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1619    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1620    o remove MINIMAL_TAVE_OUTPUT option ;
1621      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1622    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1623      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1624    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1625    o add time-dependent SST, SSS control
1626    o cost terms in ecco/ modularized (new cost_generic.F)
1627    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1628    o new infrastructure for seaice model vs. obs misfits in seaice/
1629      * driver from the_main_loop.F is seaice_cost_driver.F
1630      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1631      * gradient check in Exp. 6a of natl_box_adjoint/
1632    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1633      (see README file)
1634    
1635    checkpoint57q_post
1636    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1637    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1638      - bug was reported by Jean-Michel and Ian Fenty
1639    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1640      update exp. cpl_aim+ocn output.
1641    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1642      Needed for high-res. runs with large global files
1643      to be able to limit tapelev size
1644    o Changed some tests for adjoint:
1645      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1646      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1647      * global_ocean.90x40x15/ back to default 3-level checkpointing
1648    o Modifications to enable scripted COMMON to MODULE conversion
1649      * verification/OpenAD/code/ has necessary scripts and description;
1650      * converts, compiles and runs successfully;
1651    
1652    checkpoint57p_post
1653    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1654    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1655      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1656    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1657    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1658      (was already the case for dissipation with mom_vecinv,
1659       and also the case for grad.PhiHyd when staggered-timeStep)
1660      This will allow to put dissipation out-off the AB time-stepping.
1661     Unfortunately, affects truncation error. Update output of exp. that "fails"
1662      (cg2d matching number) and leave the others for later: front_relax(10),
1663      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1664      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1665    
1666    checkpoint57o_post
1667    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1668      (2) its ready to be documented during the 20050801 DocFest
1669    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1670      for ideal_2D_oce and lab_sea on linux_ia32_g77
1671    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1672      in global1x1_tot/code_seaice_adj to access indices 32, 33
1673      (worth another tag)
1674    
1675    checkpoint57n_post
1676    o adding precip control xx_precip 32
1677    o adding swflux control xx_swflux 33
1678    o Replacing 10 forcing penalty cost routines by 1 generic.
1679    o Implementing partitioning in time-mean and variable adjustment
1680      for atmos. state.
1681    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1682  o in natl_box_adjoint:  o in natl_box_adjoint:
1683    * updated: results_bulk/    * updated exp 1 to 10
1684    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
1685    o updated global1x1/*_seaice_adj/
1686      to incorporate latest changes
1687    o enable useSingleCpuIO for mdsio vector routines
1688      (applies in particular to tapelev I/O)
1689    o removed inefficient K-loop in all active_file*control*.F
1690    
1691  checkpoint57m_post  checkpoint57m_post
1692  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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