/[MITgcm]/MITgcm/doc/tag-index
ViewVC logotype

Diff of /MITgcm/doc/tag-index

Parent Directory Parent Directory | Revision Log Revision Log | View Revision Graph Revision Graph | View Patch Patch

revision 1.41 by heimbach, Fri Jul 13 18:08:14 2001 UTC revision 1.1031 by jmc, Tue Oct 21 18:07:02 2008 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
8      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
9    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
10    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
11      does not become too large (to avoid precision problems in implicit-diffusion
12      solver); update ideal_2D_oce output.
13    o pkg ggl90:
14      - in ggl90_cal.F: compute only one set of visc/diff, used to
15        step forward TKE/T/S/momentum
16      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
17        have Prandlt =1)
18    o gmredi(fm07):
19      - add lower limit on Transition layer thickness + lower limit on 1/lambda
20      - allow to set few more params from data.gmredi
21    o pkg ggl90:
22          - add missing sqrt(2) factor in computation of mixing length
23            scale in ggl90_calc.F
24            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
25    
26    checkpoint61d
27    o adjoint modifs
28      - adapt to new field rhoInSitu
29      - allow to revert from StoreDynVars2D, StoreDynVars3D
30        to individual fields
31        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
32    o store 3-D (in-situ) density in commom block (DYNVARS.h)
33     - save 1 rho computation.
34     - no longer modify T & S inland when using down_slope pkg.
35    o gad_som : allow to switch to SOM advection for T & S without corresponding
36      pickup files (using new S/R: MDS_CHECK4FILE).
37    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
38      (for useSingleCpuIO to work in multi-threaded)
39    o pkg/shelfice:
40     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
41       with SHELFICEtopoFile in data.shelfice
42     - move code for reading ice shelf topography and modifying hFacC into separate
43       subroutines of the shelfice package
44     - separate initialisation of "fixed" and "variable" variables
45     - kTopC is not (yet) replaced by kSurfC, although this is possible
46    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
47    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
48      and rename:
49      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
50      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
51    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
52    
53    checkpoint61c
54    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
55      to add mass source/sink of fluid in the interior (3-D generalisation
56      of oceanic real-fresh water flux).
57    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
58    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
59    o new pkg: down_slope
60      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
61      - presently, modify T & S inland (dwnslp_calc_rho.F).
62        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
63      - implementation for ocean in P-coords not tested.
64      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
65    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
66      (to facilitate conversion of oceanic pkg to p-coordinate).
67    o change FIND_RHO to FIND_RHO_2D :
68      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
69    o new pkg: cheapaml
70    
71    checkpoint61b
72    o exch2:
73      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
74      - no longer depend on the order sequence (N,S,E,W).
75      - 3rd exchange no longer needed (tested with 24 tiles).
76      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
77      - exch_UV_A-grid readily available (but not yet tested).
78      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
79      (both are no longer needed) in exch_uv: no effect in forward run; but
80       get truncation error differences with adjoint exch.
81    o exch2:
82     - change index-bounds storage (moved from target to local tile,
83       more intuitive this way) ; rename/remove some variables.
84     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
85    
86    checkpoint61a
87    o exch2/matlab-topology-generator:
88      fix bug in index bounds for N-S internal exchange (hard to tell if this
89      had any effect on the solution).
90    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
91      is exceeded
92    o testreport: modify syntax of awk, so that it works also with
93      awk, and not only with nawk and gawk
94    
95    checkpoint61
96    o autodiff
97      Change default for TAF usage by removing argument '-nonew_arg'
98      This changes TAF subroutine argument list (ordering of active var.)
99      Omission of this flag leads to incompatibility w.r.t. TAMC
100      To restore TAMC-compatibility, need following modifs:
101      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
102      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
103      Tested TAF version is 1.9.22
104      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
105    
106    checkpoint60
107    --->>> This is the last checkpoint for which generating the adjoint
108    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
109    --->>> by default.
110    --->>> Future checkpoints will ommit this flag by default.
111    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
112    o pkg/grdchk: Add gradient check to etan0 perturbations.
113    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
114    o pkg/autodiff: more flexibility in zeroadj.
115      model/src: modifying do_oceanic_phys.F accordingly.
116    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
117    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
118      special setup of gmredi for which the adjoint is stable
119      enough for parameter optimization.
120    o bridging the gap between eddy stress and GM.
121      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
122          along with a change in CPP option (now ALLOW_EDDYPSI).
123      -> when using GM w/ GM_AdvForm:
124          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
125          is applied either in the tracer Eq. or in momentum Eq.
126          depending on data.gmredi (intro. GM_InMomAsStress).
127      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
128      The key modifications are in model/src/taueddy_external_forcing.F
129      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
130    
131    checkpoint59r
132    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
133      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
134      fix option to read coriolis(@ cell-corner) from files with CS-grid.
135    o pkg/mnc: add some attributes to standard 1D-coordinate variables
136    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
137      mass points, when using mnc for output
138      - add runtime parameter (missing_value, missing_value_int) to override
139        default (which is the value of getcon('UNDEF'))
140    o pkg/mnc: prepare mnc for the actual use of missing values with the
141      diagnostics package: small fix in mnc_cw_readwrite.template and more
142      initialisation of never used fields
143      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
144      versions
145    o pkg/thsice/thsice_ini_vars.F added default initial values so that
146      thermodynamics sea ice solver does not blow up when some initial fields
147      are missing.
148    o move from external_forcing_surf.F to ini_forcing.F
149      the p-coord. hack consisting in using pLoad to set phi0surf ;
150      update output of tutorial_global_oce_in_p (affected @ truncation level).
151    o Freshen up a bit hs94.1x64x5, notably:
152      remove rotationPeriod and tRef=5*0. (adjoint only), and add
153      exactConserv=.TRUE.
154    o pkg/generic_advdiff:
155      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
156      applies to files where Temperature & Salinity 2nd Order moments are used.
157    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
158      this uses a dynamically allocated internal state data structure
159      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
160      and requires a fortran 90 compiler
161    
162    checkpoint59q
163    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
164       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
165    o Refresh tutorial_global_oce_biogeo, notably:
166      - change bathymetry (put back seamounts in ACC, use hFacs)
167      - change EOS (POLY3 --> JMD95Z)
168      - use Bryan-Lewis vertical diffusivity
169      - use multidimensional advection
170      - remove old virtual virtual in dic pkg, now done through ptracer pkg
171      - change a couple of parameters in dic pkg
172    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
173    o pkg/obcs: change default to OBCSfixTopo = .true.,
174      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
175      - replace "debugMode" with "debugLevel .GE. debLevB"
176    o implementation of TAF directives for gchem,cfc,dic
177    o remove "exp5" (replaced by tutorial_deep_convection).
178    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
179      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
180      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
181      --> changes results in exp4, seaice_obcs
182    o tutorial_deep_convection :
183      update the set-up and increase resolution and domain size ; start
184      from pseudo initial conditions = output at t=120mn in order to see
185      something happening when running testreport.
186    o pkg/seaice: add os7mp as an advection scheme
187                  add check for advection schemes
188                  add a flag for restoring T and S underneath sea ice
189    o pkg/my82: add netcdf-support and diagnostics
190    o thsice pkg:
191      - Now hsMax limits snow height by turning it into ice following
192        flooding scheme (and now conserving energy)
193      - Slight rewriting of the formula in thsice_calc_thick.F
194      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
195      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
196    
197    checkpoint59p
198    o gchem / dic / cfc :
199      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
200      - add new parameter files: "data.dic" & "data.cfc" ;
201      - various re-arrangement in initialisation & header file ;
202      - fix tutorial_global_oce_biogeo for multi-threaded test.
203    o pkg/dic: test for "pickup_dic" file when restarting ;
204      if no pickup-file, can restart with a re-initialised pH (same as it did
205      before) providing pickupStrictlyMatch is set to False.
206    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
207      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
208    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
209      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
210    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
211     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
212       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
213    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
214       scheme to use for vorticty-term ;
215     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
216       (with default selectVortScheme, return to original discretisation)
217     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
218    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
219    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
220      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
221      also fix diagnostics VISCAHW & VISCA4W.
222    
223    checkpoint59o
224    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
225    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
226      move a few statemens out the main loop into separate loops
227    o pkg/shelfice:
228      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
229        (kg/m^2/s), does not break tests, because in verification/isomip,
230        rhoConstFresh=rhoConst (by accident)
231      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
232      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
233        new file model/src/seawater.F, so that they are available for all pkgs.
234      - convert potential temperature into in-situ temperature. This changes the
235        isomip tests => update tests
236    o add a flag writePickupAtEnd (default=true) to be able to suppress
237      writing a pickup at the last timestep
238    o tools/mpack-1.6 :
239      - disable automake (not working) and autoconf (not needed).
240      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
241        also cleaner with much less compilation warnings.
242    o pkg/profiles:
243      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
244      (for "less than 32 characters name" compiler requirement)
245    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
246      conditions that have a different sampling frequency than S/T/U/V obcs
247    o pkg/diagnostics (stats-diags):
248      - fix global Min/Max in case 1 processor get only empty tiles
249    o genmake2: replace (4 times)
250         make genmake_tc_1.o >> genmake_warnings 2>&1
251      with
252         COMM="$CC $CFLAGS -c genmake_tc_1.c"
253         echo $COMM >> genmake_warnings
254         $COMM >> genmake_warnings 2>&1
255      to make genmake2 always see the value of CC as specified in the optfile.
256    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
257      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
258      - modify verification advect_cs test to test SOM-advection on CS-grid.
259    o pkg/ctrl:
260      - Rewrite of ctrl_map_ini_ecco.F,
261        introducing a generic routine (ctrl_map_ini_gen.F).
262      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
263    
264    checkpoint59n
265    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
266      number in dedicate array "hdiag":
267      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
268        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
269      - many small changes (integer format) for large number of diagnostics
270      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
271        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
272    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
273      usingSphericalGrid, this allows to define the rotated grid coordinates
274      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
275      geographical coordinates according to the inverse of the rotation defined
276      by the Euler angles, so that Coriolis parameter and online-interpolation by
277      exf works with the geographical coordinates on XC/YC/XG/YG.
278      Naturally, this feature does not work with all packages, so some
279      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
280      profiles), because there the coordinates are assumed to be regular
281      spherical grid coordinates.
282    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
283      - introduce isopycnal diffusion coefficient control.
284    o tools/adjoint_options:
285      - additional control vector components.
286    o pkg/mnc: have mnc create marginally meaning full coordinate variables
287      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
288    o pkg/mypackage:
289      - add example of read/write pickup for state-var ;
290      - add entry points to the main code for state-vars diags & write-pickup.
291    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
292      transitions for useExfYearlyFields
293      - add new subroutine that determines the file to read from for
294        use*YearlyFields = .TRUE. and .FALSE.
295      - add a verification experiment to global_with_exf that tests
296        useExfYearlyFields with USE_EXF_INTERPOLATION defined
297    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
298      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
299      subroutines (which could be generated from a template, because they are
300      almost identical), for now they are included in obcs_prescribe_read.F for
301      simplicity
302    o pkg/exf:
303      - add a little more diagnostic to exf_interp_read (in analogy to
304        mds_read_field, can be turned off with debugLevel < debugLevA=1)
305      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
306        ugly but fast by unrolling short inner loops, inserting a unroll=8
307        directive in routine lagran, and splitting a loop and making do while the
308        outermost loop (the latter requires the intoduction of index arrays)
309    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
310    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
311      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
312    o verification/seaice_obcs: updated for restart test and latest options
313    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
314      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
315      for now this is only available for the C-grid code and also within
316      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
317    
318    checkpoint59m
319    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
320      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
321    o gad_som : fix flux output (& diagnostics) to have same units as other  
322      advection scheme fluxes (was previously multiplied by deltaT).  
323    o added verification/seaice_obcs both to test seaice open boundaries
324      and to provide an example matlab scrpt for generating them
325    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
326    o pkg/salt_plume: clean up salt_plume_frac.F to
327      remove redundancy in PlumeMethod 1 and 4
328    o pkg/kpp: added saltplume diagnostics
329    o pkg/obcs and pkg/seaice:
330      - do not set uice and vice to zero when OB*icefile are unspecified
331      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
332      - moved seaice tracer obcs after call to seaice_growth
333    o pkg/salt_plume: added various options for salt plume depth
334      criterion and for vertical distribution of the salt
335    
336    checkpoint59l
337    o pkg/ptracers: new version of ptracers pickup:
338      read meta file and write only fields which are needed to restart.
339      ( same logic as main pickup file ; also using pickupStrictlyMatch )
340    o pkg/seaice:
341      - add timescale for melting due to warm mixed layer as a means of
342        setting SEAICE_availHeatFrac more conveniently
343      - add a CPP-flag/runtime parameter check for flooding algorithm
344      - reformulated availHeat in seaice_growth.F to be independent of AREA
345    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
346      unit changes
347    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
348    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
349      SX vector computer.
350    o pkg/seaice:
351      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
352        seaice forcing fields can now be read only through pkg/exf
353      - removed some unused halos
354    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
355    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
356      or U/VICE from U/VWIND before computing U/VSTRESS
357    
358    checkpoint59k
359    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
360      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
361    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
362      all experiments pass when compile with un-initialised var. checking option.
363    o added pkg/salt_plume
364    o script to test restart (for now, in MITgcm_contrib/jmc_script)
365    o pkg/seaice: new read/write pickup version.
366      read meta file and write only fields which are needed to restart.
367      ( same logic as main pickup file ; also using pickupStrictlyMatch )
368    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
369    o lab_sea.hb87: modify the domain & update output.hb87.txt :
370      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
371      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
372      process. Fixed here by closing the domain at the Northern boundary.
373    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
374    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
375      a set of consecutive levels in/from a 3-D array.
376    o pkg/ptracers:
377      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
378      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
379    
380    checkpoint59j
381    o in pkgs: dic, obcs, offline, rbcs:
382      standard way to compute coeff. for time interpolation between 2 time reccords
383      which retains full precision (& make results less dependent on compiler).
384      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
385    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
386      packages instead of reading ice cover and wind speed separately
387    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
388     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
389      to allow to compile customized code before the update)
390    o cleaning-up:
391      - fix CPP instruction syntax in pkg/obcs
392      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
393        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
394      - fix some threads issue in IO parts.
395    o pkg/dic:
396      - add tons of "_d 0" (--> much better testreports !)
397       and then update outputs of tutorial_global_oce_biogeo
398    o pkg/mom_fluxform:
399      add a special version of momentum advection intended to conserve momentum
400      next to a bathymetry step or a coastline edge. (default = off = #undef)
401    o new read/write pickup version:
402      - for now, only implemented for main (mdsio) pickup file.
403      - write out only what is needed to restart; merge pickup_nh , pickup_ph
404        and main pickup together.
405      - read meta file; read only what is needed to restart; stop if a field
406        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
407        if it make sense (even if the restart is not perfect).
408      - if no meta file, assume that pickup to read corresponds exactly to
409        a pickup that would currently be written.
410      - read pickup written in the old format (until checkpoint59i) if it
411        recognizes an old meta file (no field-list).
412      - add a meta file in exp. which starts from a pickup: 2 cases:
413        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
414         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
415        b) a meta file describing the content of the associated pickup file
416         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
417    o pkg/mdsio & pkg/rw:
418      - new routine to read a meta file ; new set of routine to read
419        Multiple-fields file (with meta file).
420    o added open boundary conditions capability for seaice
421        HSNOW, HSALT, UICE, and VICE
422    
423    checkpoint59i
424    o adjoint:
425      * fix multiDimAdvection adjoint
426        (partial recomputation problem by TAF for fVerT(:,:,kDown)
427        and comlev1 size definition (maxpass vs. max. number of tracers)
428      * verification/global_ocean.90x45x15 adjoint now tests
429        NLFS and multiDimAdvection using DST3 (=30)
430      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
431    o pkg/kpp: add "_d 0" to real constant (if missing);
432      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
433      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
434    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
435      for internal parameters related to restart process (formerly from PARAMS.h)
436      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
437    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
438      as argument. (only atm2d & obcs write_pickup have not yet been updated)
439    o pkg/monitor:
440      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
441      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
442      - account for deep Atmosphere factor and density factor (anelastic)
443    o added open boundary conditions capability for seaice HEFF and AREA
444    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
445      thermodynamics
446      - requires a little reorganization, which affects the testreport results
447        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
448        so that now the conservative form is tested
449      - add a few comments
450    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
451    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
452    o add new diagnostics to seaice: advective, diffusive fluxes (only for
453      multidim-advection, for scheme 2 they are not filled) and transports,
454      thermodynamic growth rates
455    o change units of EmPmR (inside the code, + within coupling interface)
456      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
457      Affects results @ truncation level (cg2d match) and update output of
458       experiments: lab_sea(6), global_ocean.90x40x15(10),
459      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
460      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
461      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
462      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
463    
464    checkpoint59h
465    o pkg/exf:
466      - improve vectorization by moving if-statement out of loops in
467        exf_mapfields, exf_radiation
468      - exf_bulkformulae.F: introduce 2D fields and vectorize code
469    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
470    o testreport:
471      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
472        monitor & update offline_exf_seaice exp. output.
473      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
474    o pkg/seaice:
475      - bug fix in the evp solver: boundary conditions were affected be
476        masking of zMax/zMin (changes results)
477      - minor bug fix in boundary conditions in seaice_calc_strainrates
478        (changes results for no_slip)
479      - seaice_lsr.F: make interpolation of eta dependent on boundaries
480      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
481      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
482        stress formulation and no-slip boundary conditions
483    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
484      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
485    o pkg/seaice: a first HSALT time stepping equation has been checked in
486    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
487      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
488      without requiring DO-IF statements
489    o pkg/thsice:
490      use continuous power-law function for partition of energy between lateral
491      melting/freezing and thinning/thickening ; old code using step function
492      still available with #undef THSICE_FRACEN_POWERLAW
493      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
494    o testreport: change AD testing : check against results/output_adm.txt
495      using same scripts as for forward test.
496    
497    checkpoint59g
498    o adjoint testing: in preparation for changing testreport:
499      - output format: cost and grad written on separated lines
500      - ad output results in directory "results" (instead of "results_ad")
501    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
502    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
503    o pkg/ecco: allow user defined cost function contributions
504    o testreport:
505      Allow to choose (per experiment) the list of tested output variables
506       and the main variable (used to issue a pass/FAIL ) ;
507      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
508      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
509      Also modify printing of summary:
510       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
511       b) echo the list of tested variables in the individual summary.txt of
512          each experiment.
513    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
514      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
515      (but still depend on the tile decompostion of the domain).
516    o pkg/seaice: change a discretization detail to make the B-grid code
517      "more symmetric". This change is likely to remove all "ridges/leads" that
518      where quasi-aligned with the grid in B-grid solutions. It may also be
519      the solution to the stress coupling issues with the B-grid.
520    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
521      remove .cvsignore from input dir. (since testreport no longer run here).
522    o pkg/thsice:
523     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
524     - fix reshaping of sea-ice just after advection:
525       melt all the ice only if ice-volume is too small.
526     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
527       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
528     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
529    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
530      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
531    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
532      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
533      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
534      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
535      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
536      -> update output.txt
537    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
538     this affects truncation error: -> update output.txt of exp:
539      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
540      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
541    
542    checkpoint59f
543    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
544    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
545      a bounded range (in forward mode)
546    o pkg/ecco, ctrl, autodiff and mom_common:
547     internal parameter controls, completements of implementations
548    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
549    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
550      (not seem any difference in testing results).
551    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
552       at face corners.
553    o pkg/generic_advdiff:
554     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
555      loop range indices for computing vertical advection tendency
556      and do the calculation in the interior only (no overlap) ;
557      for now, only implemented for SOM advection (to save CPU time).
558     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
559    o exch2 adjoint
560      First set of changes:
561      - add exch2 hand-written adjoint templates
562      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
563        This will require cleanup in pkg/autodiff/*.F
564        (changed routines currently kept separate in verif. code/)
565      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
566        that used to hide exch2 or cubed-sphere specific code
567        (commented via 'cph-exch2')
568    o pkg/seaice
569      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
570    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
571       output of global_ocean.cs32x15.thsice .
572    
573    checkpoint59e
574    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
575      for B-grid vector (not yet tested) and C-grid vector (<- only used
576      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
577    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
578      (#ifdef ALLOW_SALT_PLUME)
579    o gather_2d/scatter_2d: removed halo regions
580    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
581      scheme and the corresponding test case (under front_relax dir). For now,
582      only available with Skew-flux form and not yet tested in realistic set-up.
583      adjoint: store directives updated, but gradient checks deteriorated,
584      so maybe GM/Redi adjoint is now broken.
585    o seaice adjoint
586      * add AREA, HEFF, HSNOW as control variable
587        (should not change lab_sea results)
588      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
589    o pkg/seaice:
590      * added computation of saltFlux in seaice_growth;
591        For time being, sea ice salinity is assumed constant
592        contribution of snow flooding to freshening of sea ice is neglected.
593        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
594        defaults to 0.0 in order to maintain backward compatibility.
595        Typical values for SEAICE_salinity are 4 to 10 g/kg.
596      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
597      * added SEAICE_availHeatFrac, which specifies fraction of surface level
598        heat content used to melt or grow ice
599      * commented out cap of HICE: it helps keep ice thinner
600      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
601      * applied OBCS T/S mask to HEFFM sea ice mask
602    
603    checkpoint59d
604    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
605     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
606     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
607    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
608     and change default value of parameter "GM_Small_Number";
609     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
610       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
611       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
612    o pkg/ecco: cost function when applying pkg/smooth to controls
613    o pkg/ctrl: add forcingPrecond run time parameter
614    o pkg/seaice:
615     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
616     - fix bug in metric terms of u-equation in LSR solver (implicit part),
617       changes verification/lab_sea
618     - rearrange implicit part of u-equation in LSR solver to make it easier to
619       read, understand, and debug. This causes changes at the truncation level.
620     - fix (serious) bug in the boundary conditions (sign error in the implicit
621       part) of the LSR solver. Changes all LSR results.
622     - fixed problem with HSNOW initialization to avoid thick snow when AREA
623       is initilized with small values - does not change lab_sea results.
624     - added HsnowFile initialization capability
625    o pkg/smooth: addition to model/src and pkg/ctrl so allow
626     initialization of pkg/smooth and application to control vector
627    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
628    o dependencies: pkg/profiles requires pkg/cal
629    o pkg/profiles:
630     - added option ALLOW_PROFILES_GENERICGRID
631         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
632         that interpolation information (grid points and coefficients) is provided
633         within the netcdf input files.
634         -> sample matlab scripts can be found in MITgcm_contrib/gael
635         that allow you to prepare netcdf input files.
636     - also modified: cleaner include statements, cleaner error print statements,
637       cleaner stops when error, and more tests of the netcdf input files consistency.
638    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
639    o pkg/seaice:
640     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
641       requires a new routine: seaice_diagnostics_fill.F
642     - make sure that seaice does not move if not forced (pressure replacement
643       method, Hibler and Ip, 1995), changes results
644     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
645     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
646       It is turned off by default (=-1.), because it changes the results.
647     - make it possible to read AREA from a file, too.
648    
649    checkpoint59c
650    o add S/R and diagnostics for oceanic mixed-layer depth
651    o move GMRedi call after all vertical mixing schemes (including KPP)
652    o pkg/thsice:
653     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
654      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
655    o pkg/obcs:
656     - bug fix for balance code
657    o pkg/seaice:
658      - allow values of SEAICE_elasticParm > 1
659      - add new parameter SEAICE_evpTauRelax as an alternative
660        to SEAICE_elasticParm
661      - make lsr boundary conditions free slip (by default), changes result
662      - add code for no slip boundary conditions for lsr
663      - set minimum of zeta to zero (and not 4e8) (changes results)
664      - add a cap on AREA after advecting AREA if seaice_growth is not called
665    o change calculation of Visbeck K:
666      - no longer depend on tapering scheme; instead, compute slope (limited
667        by GM_maxSlope). this is equivalent to what was comuted before with
668        clipping or linear tappering.
669      - fix vertical averaging (wrong by 1/2 level)
670      - leave the old version (but will not be maintained) within
671        #ifdef OLD_VISBECK_CALC / #endif
672      - update output of exp. ideal_2D_oce
673    o change error catch in calc_r_star to improve vectorization
674    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
675      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
676    o adjoint:
677      Re-organized adjoint checkpointing according to Matt Mazloff
678      (but with modifs/completions/cleanups)
679      Storing is now bundled into large arrays to optimized I/O
680      (and second step in cleanup of the_main_loop)
681    
682    checkpoint59b
683    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
684      - export/import (between ocean & coupler) fields needed for ocean DIC.
685    o pkg/seaice:
686      - get rid of three more exchanges seaice_calc_viscosities (required
687        different loop boundaries in seaice_lsr and seaice_ocean_stress)
688      - bug fix in seaice_ocean_stress (update of lab_sea required)
689      - reduce loop boundaries to necessary minimum also in seaice_evp
690      - go back to the old way of computing deltaC/Z as the adjoint likes that
691        better
692    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
693      passive tracer to an Age Tracer) + update output.txt
694    o pkg/exf:
695      - implement A-grid / C-grid selection for wind-stress input files.
696      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
697      for now, in exf_bulk_largeyeager04.F only :
698      - change implementation for case where windspeed + 2. components wind-stress
699        are read-in. AND use rhoConstFresh to convert evap.
700    o pkg/seaice:
701      - use correct EXCH_UV for wind-forcing (on A-grid).
702      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
703        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
704    o pkg/exf:
705      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
706      EXF_INTERPOLATION:
707      - merge global_with_exf/code version of exf_interp_read.F
708        to the main code ;
709      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
710        reading the file ; Important: This options needs to be defined to recover
711        previous code.
712        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
713      - no longer loose real*8 precision along the way when using exf_iprec=64.
714    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
715      - change discretisation of evp-solver in order to avoid another exchange
716        (changes lab_sea) and clean up a little
717      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
718        help the adjoint (this also changes the results slightly)
719      - add a few "_d 0" where they had been missing in seaice_evp.F
720      - cleaning up: remove unused seaice_calc_rhs.F
721    o pkg/exf: some cleaning-up:
722      - change various "constants" into runtime parameters
723      - cleaned-up Large&Yeager04 routine which should eventually
724        replace exf_bulkformulae.F (changed names of S/R and CPP)
725        and merged various ALLOW_ATM_WIND options
726     only used with thsice pkg (in thsice_get_exf.F):
727      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
728        which are used when useStabilityFct_overIce=TRUE (= the default)
729      - change default values of ice & snow emissivity and scale downward LW
730        by ice & snow emissivity.
731    o pkg/thsice:
732     fix few little problems, in thsice_calc_thickn.F:
733      - growth vertically (and not laterally) if iceFrac == iceMaskMax
734      - melt only laterally if hIce < hThinIce (as the comments say)
735      and in thsice_extend.F:
736      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
737      - start to form ice as soon as the minimum ice-volume is reachable.
738     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
739      and cpl_aim+ocn
740    o pkg/kpp
741     - move computation of surface related input fields to KPP into a new
742       subroutine kpp_forcing_surf.F
743     - remove wrong (within bi,bj loops) EXCH calls.
744     - little cleaning (add argument myThid in last position, cvs header ...)
745     - for now, fix conservation problem by exchanging KPPviscAz (may not
746       be the best fix)
747    o pkg/seaice
748     - check for inconsistent evp parameter/cpp-flag combination
749     - remove leftover errIO flat for obsolete name list error handling
750    o OpenAD
751     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
752    
753    checkpoint59a
754    o pkg/seaice: some parameter clarifications and a little bit of clean up
755    o pkg/thsice: rename run-time parameters:
756       himin       -> hIceMin
757       himin0      -> hThinIce
758       hihig       -> hThickIce
759       i0          -> i0swFrac
760       transCoef   -> bMeltCoef
761       frac_energy -> fracMelting
762      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
763       with default values (for now) that do not change the results.
764      remove old version of thsice vars advection in pkg/seaice.
765    o in FFIELDS.h:
766      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
767      - make pLoad & sIceLoad always available (but still only used if
768         ATMOSPHERIC_LOADING is #define).
769    o pkg/kpp: replaced _KPP_RL with _RL
770    o bug fixes for vertical diffusivity computations when both KPP and
771        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
772        are no longer updating the vertical diffusivity array
773        (passed as argument) but are (re-) setting those arrays.
774    o pkg/seaice: fix bug in evp solver, while doing that
775      - change (improve?) discretization of stress computations for both
776        cgrid-lsr and evp solver
777      - add a new routine to compute strain rates
778      - the above changes lab_sea results
779      - add no slip conditions for evp solver (off by default), lsr-version
780        may follow
781      - fix exchange for shear at Z-points (does not change lab_sea)
782      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
783        (to force the user to pick a time step since there is not "safe" way
784        of choosing it)
785      - add principal stress diagnostics
786      - rearrange fields for evp a little to avoid having to call a: too many
787        exchanges and b: exchanges for stress trensor components which we do
788        not have.
789      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
790        of evp, complete rewrite for lsr case (latter is does not yet work
791        in all cases)
792    o pkg/kpp: add code to have mixing in shelf ice caverns
793      - add myThid to all kpp routines (long overdue)
794    
795    checkpoint59
796    o pkg/exf:
797      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
798        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
799      - move exf header files from lower_case.h to UPPER_CASE.h ;
800        add missing cvs Header & Name
801      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
802      - add namelist param. selectStressGridPosition, exf_monFreq
803      - retire many _CLIM routines, and remove data.exf_clim
804        + params moved to data.exf
805        + climsst, climsss now handled by exf_set_gen, i.e.
806          climss?period=0 refers to constant field,
807          climss?period=-12 to monthly forcing
808      - split up namelists in data.exf
809    o pkg/seaice:
810      - remove seaice_exch and seaice_exch_uv
811      - remove superfluous exchange of theta
812      - add myThid to seaice_budget_ocean/ice
813      - add new interface for atmospheric wind forcing (C-grid only)
814        + new routine
815        + two new field (taux, tauy for stress over ice)
816        + removed one global field (DAIRN) for C-grid case only
817    o pkg/thsise
818      - 2nd set of modifs for thsice adjoint in conjunction with exf
819    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
820    
821    checkpoint58y_post
822    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
823      vertical diffusivity, similar to that in MOM4; turned on using
824      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
825      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
826    o Added capability for 3D specification of background vertical diffusion
827      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
828      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
829      "data" file that contains the 3D vertical diffusivity coefficients.
830    o ice dynamics (pkg/seaice) with thsice thermodynamics:
831      - add code within pkg thsice to advect & diffuse sea-ice fields
832      similar to (and will replace) what has been added in  seaice_advdiff.F,
833      but: - conserving Mass, Heat & Salt.
834           - better when using non-linear advection scheme (not yet fully tested)
835           - can also be used in atmospheric set-up (for now, only the diffusion).
836    
837    checkpoint58x_post
838    o IO option for global-file compact format:
839      - add options when generating topology (utils/exch2/matlab-topology-generator)
840      - add I/O capability (pkg/mdsio).
841      - adapt utils/matlab/rdmds.m to read this format.
842      for now long-line format not yet supported by pkg/mdsio (& exch2).
843    o shelfice: add a few diagnostics
844    
845    checkpoint58w_post
846    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
847      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
848      (and replace horiVertRatio in NH code).
849      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
850                         and tutorial_plume_on_slope (sensitive to truncation)
851    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
852      directly to drive seaice model (C-grid only)
853    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
854     - reintroduce computation of wind from stress,
855     - compute tau (in exf_bulkformulae.F) from windstress averaged to
856       mass points to avoid tau = 0
857     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
858    o rdmnc.m: make it work with "global" files created with gluemnc
859    o rdmnc.m : some improvements in dealing with singleton dimension
860      (tested on all testreport mnc output files).
861    o genmake2: disable pkg/profiles if netcdf test fails.
862    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
863    o move call to cal_readparms up to make calendar parameters/variable available
864      to all packages
865    
866    checkpoint58v_post
867    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
868      useDynP_inEos_Zc tested.
869    o pkg/exf: changes to properly interpolate/mask/scale initial fields
870    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
871      and portions thereof.  See read_cs.txt for description and examples.
872    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
873      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
874      following the great-circle arc between those 2 points.
875    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
876      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
877    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
878     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
879     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
880     - still needs work (not working with some options ; efficiency to improve)
881       and serious testing.
882     - use this scheme for temperature & salinity in 2 advection test exp.:
883       advect_xy & advect_xz, respectively.
884    
885    checkpoint58u_post
886    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
887    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
888    o testreport: add option "-skipdir" to skip some test.
889    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
890      momentum calculation.
891    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
892    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
893      remove checkpoint.F and the_correction_step.F (no longer used);
894      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
895    o add option (linFSConserveTr) to correct for tracer source/sink due to
896      Linear Free surface
897    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
898    o pkg/thsice: fix reading mnc-pickups
899    
900    checkpoint58t_post
901    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
902    o pkg/mdsio:
903     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
904       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
905       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
906     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
907     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
908       either MDS_READ_FIELD or MDS_WRITE_FIELD )
909     - new S/R (to replace MDSWRITEMETA), which allows to write more
910       informations (variable names, time ...) to meta files.
911     - modify rdmds.m to give back the meta file content.
912    o pkg/diagnostics: change vertical interpolation to be safer, and more
913       flexible (define p-levels to interpolate to in data.diagnostics);
914      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
915       diagnostic pointer.
916    o pkg/seaice: more cleaning up of seaice_growth, added many comments
917    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
918    o fix multi-category seaice:
919     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
920       SEAICE_MULTICATEGORY
921     - fix short wave heat flux
922    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
923       and allow to use EVP solver. Change forward lab_sea: test both EVP
924       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
925    o Initial check-in of lab_sea adjoint
926      (very similar to natl_box_adjoint/code_seaice)
927      * used C-grid and EVP solver
928      * used KPP, GM/Redi
929      * uses inAdExact=.TRUE.
930      * gradient checks fail for both ADM and TLM
931        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
932        f.d. gradients actually seem more problematic than ADM, TLM gradients;
933        issue is related to forward mismatch between g77 an ifort
934    o pkg/seaice: overhaul of thermodynamics
935     - growth.F and groatb.F are replaced by new routine seaice_growth.F
936     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
937     - move a few global fields out of SEAICE.h into seaice_growth.F and
938       make them 2D (FICE/QNETO/ ...)
939     - remove FO (it is the same as QNETO)
940     - introduce a few local fields to avoid modifying external fields such
941       as atemp, etc.
942    
943    checkpoint58s_post
944    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
945      changed exf_set_gen.F so that
946        genperiod=0 means input file is one time-constant field and
947        genperiod=-12 means input file contains 12 monthly means
948    o CG2D: use pre-computed solver main-diagonal (stored in common block);
949      this affects truncation error ; generate new output file for exp. which
950      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
951        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
952        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
953        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
954        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
955        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
956    o start implementation of deep-atmosphere and anelastic formulation
957    o verification: remove 2nd copy of input files and use script "prepare_run"
958      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
959    o mom_common/vecinv/fluxform: fix a few initialisation isssues
960    o profiles: fix for multithreaded case
961    
962    o diagnostics: rename few diags:
963      s/'PRESSURE'/'RCENTER '/g
964      s/'TICE    '/'oceFreez'/g
965      s/'TAUX    '/'oceTAUX '/g
966      s/'TAUY    '/'oceTAUY '/g
967      s/'SWFLUX  '/'oceQsw  '/g
968      s/DIFx/DFxE/g
969      s/DIFy/DFyE/g
970      and add few ocean-forcing diagnostics:
971      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
972    o modifications to pkg/seaice/growth.F and budget.F, which change results of
973      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
974      as actual snow thickness.  It now refers everywhere to effective snow
975      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
976    
977    checkpoint58r_post
978    o modifications to pkg/seaice/growth.F, which change results of
979      lab_sea experiment: fixes pertain to melting snow over open water, to
980      masking EVAP under sea ice, and to using the correct AREA variable for
981      computations of EVAP, PRECIP, HSNOW, and GHEFF
982    o add ability to read bathy, salt, and theta using MNC (off by def)
983    o add flooding algorithm and advection of HSNOW for pkg/seaice;
984      both are turned off by default and do no change any results
985    o seaice advection with pkg/thsice: a step toward the use of non-linear
986      advection scheme, but #ifdef or commented out for now (requires more EXCH).
987    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
988      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
989      in natl_box (affects results @ truncation level: update output.txt)
990    o multi-threading and IO:
991      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
992      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
993        (needed to work with SingleCpuIO): tested in all verif. exp.
994    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
995      affects the results (but none of the verification test uses this scheme).
996    o Adding some pkg/diagnostics capability to pkg/seaice
997      (will certainly be subject to changes)
998    o ctrl: adding new control variables:
999      lwflux, lwdown, evap, snowprecip, apressure, runoff
1000    
1001    checkpoint58q_post
1002    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1003      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1004      high_res_cube configuration by 4% on Columbia.
1005    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1006      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1007      dynamical allocation (seems to work in multi-threaded).
1008    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1009      single CPU io) so that TAF does not have to see EESUPPORT.h
1010    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1011    
1012    checkpoint58p_post
1013    o obcs: stop if obcs is used with useCDscheme = .true.
1014    o shelfice:
1015     - fix a sign error so that no slip at shelfice interface works
1016     - remove stop for combination non-hydrostatic code and shelfice. That does
1017       not mean, that the results are correct, but at least they are numerically
1018       stable
1019    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1020    o added adjoint exch routined for all exch*3d* routines
1021      and updated flow directives
1022    
1023    checkpoint58o_post
1024    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1025      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1026    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1027      and clean-up reading/writing of pickup files.
1028    o fix local version of read/write pickup (NH part) in rotating_tank/code
1029    o simplify EXCH interface:
1030     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1031     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1032    o added the regrid package
1033    o shelfice:
1034     - add a simple boundary layer scheme to reduce noise
1035     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1036    
1037    checkpoint58n_post
1038    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1039       local variable (not in common block).
1040    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1041      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1042      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1043        to work with SingleCpuIO.
1044    o add "_d 0" to real constant of pkg/cfc subroutines ;
1045       update exp. cfc_exemple & tutorial_cfc_offline output files.
1046    o multi-threading and IO:
1047      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1048        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1049      - barrier before and after reading.
1050      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1051      - avoid using MDS_WRITELOCAL for LAND pkg output.
1052      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1053        common-block variables ; Allows multi-threading with master-thread IO.
1054    o change default MAX_NO_THREADS from 32 to 4 ;
1055      and stop cleanly when MAX_NO_THREADS is too small.
1056    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1057    
1058    checkpoint58m_post
1059    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1060       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1061    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1062       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1063       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1064    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1065        add MITgcm_tutorials (= code + all the tutorials)
1066    o ecco, option to compute cost for total ssh (mean+anom)
1067    o consistent with addition of ptracer and ssh in pkg/profiles
1068    o profiles: adding ptracer and ssh
1069    o testreport: change multi-test output-file name
1070      (from output.txt.{name} to output.{name}.txt)
1071    o profiles: now ok for mutli-tiles case
1072    o seaice: add 4 parameters for different advection schemes for area,
1073      (effective) seaice thickness, enthalphy, and snow height. Their default
1074      is the standard parameter SEAICEadvScheme
1075    o calc_gw:
1076     - add cosFacU in zonal viscous flux (harmonic.visc.).
1077     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1078       of tutorial_plume_on_slope.
1079    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1080    o calc_gw: true flux-form, account for horizontal grid spacing.
1081      update rotating_tank results, but not plume_on_slope (affected at
1082      truncation level, 11 digits).
1083    
1084    checkpoint58l_post
1085    o calc_gw:
1086     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1087     - remove side-drag for now (need to fix it); update plume_on_slope results.
1088     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1089    o commit code to make SST/SSS weights spatially variable
1090      (based on either variable in-situ or variable initial T/S weights)
1091    o pkg/ecco:
1092      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1093        now based on horizontally varying weights wthetaLev, wsaltLev
1094      * cost_averagesflags now returns year indices in addition to day, month
1095      * sflux balance is performed on annual basis
1096        (sflxumm, sfluxmm2, bal_sfluxmm)
1097      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1098        including separate counting and multipliers
1099    o pkg/rbcs
1100      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1101    
1102    checkpoint58k_post
1103    o testreport:
1104     - always build in dir. "build" (if not there, mkdir build instead of building
1105       & running in input)
1106     - run in dir run (if it exists), in build otherwise.
1107     - call prepare_run (if input/prepare_run exists)
1108     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1109    o pkg/exf modifications to interpolation and rotation routines for more
1110       reasonable treatment of North Pole singularity: for tracers North Pole
1111       value is set to northernmost zonal-mean value, for zonal velocity it is
1112       set to zero, and for meridional velocity it is set to northernmost value.
1113    o pkg/exf/exf_check_range.F
1114     - add tile index to diagnostics and move stop statement to the very
1115       end of the routine.
1116    o pkg/diagnostics: (diagnostics_main_init.F)
1117      define title of isomorphic variables according to the current config.
1118    o pkg/thsice with pkg/seaice dynamics:
1119    - fix domain of computation (interior only, required for exf) and do exchanges
1120    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1121    o towards a standard way of dealing with multi-threading in MONITOR
1122      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1123    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1124       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1125    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1126    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1127    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1128       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1129    o tracer advection:
1130     - clean-up and simplify calc_common_factors.F
1131     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1132       advection subroutine (but still not used within DST advection S/R)
1133    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1134    
1135    checkpoint58j_post
1136    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1137      from file (collects calls previously in FORWARD_STEP)
1138    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1139    o adjoint store dir. adjusted accordingly
1140    o genmake2
1141      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1142    
1143    checkpoint58i_post
1144    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1145      on wind stress (SEAICEstressFactor defaults to 1.)
1146    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1147      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1148    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1149      on CS-grid: no longer loosing mass.
1150    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1151    o pkg/ggl90: fix sloppy output and fix a bug
1152    o pkg/seaice: added SEAICEuseEVPpickup parameter
1153      - Set to false in order to start EVP solver with
1154        non-EVP pickup files when using SEAICEuseEVP
1155      - fix sign error in diffusion in seaice_calc_rhs
1156    
1157    checkpoint58h_post
1158    * Modifications for bottom topography control
1159      o replace hFacC by _hFacC at various places
1160      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1161      o add non-self-adjoint cg2d_nsa
1162      o update autodiff support routines
1163      o re-initialise hfac after ctrl_depth_ini
1164      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1165    * Adding verification for 5x5 box (4-layer) bottom topography control
1166    
1167    checkpoint58g_post
1168    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1169       used for mean seasonal cycle, mean diurnal cycle); add an example
1170       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1171    o pkg/ggl90:
1172      - add parameter (minimum surface kinetic energy)
1173      - fix bug (avoiding division by zero)
1174    o couple pkg/thsice to pkg/seaice:
1175      - modify advection in seaice to accomodate new scalar fields to be advected
1176      - only muliDimAdection scheme work with seaice/thsice
1177      - mapping of thsice-variables to seaice-variables, back and forth
1178      - does not break the verification experiments, but does not give the
1179        desired results either
1180    o pkg/seaice
1181      - make (default) second order advection a bit less confusing?
1182    
1183    checkpoint58f_post
1184    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1185      to pkg/seaice):
1186      - new routines thsice_map_exf and thsice_get_exf provide the interface
1187      - add an additional formal parameter to thsice_solve4temp
1188    o pkg/exf:
1189      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1190      - correct Stefan-Boltzmann constant
1191      - new parameter for longwave surface emittance
1192      - separate some stuff from exf_bulkformulae into new routines  
1193        exf_radiation, exf_wind
1194      - add new parameters and constants: longwave emissivity for ocean, ice
1195        and snow, evaporation parameters over ice
1196      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1197        either wind from stress or stress from wind
1198    o pkg/thSIce:
1199    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1200    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1201       and THSICE_CALC_THICKN
1202    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1203    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1204      to make debugging easier.
1205    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1206    o pkg/bulk_force:
1207      - clean-up comments and parameters ;
1208      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1209    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1210      generate new output for test-experiment: aim.5l_cs.thSI
1211    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1212      testreport accordingly
1213    
1214    checkpoint58e_post
1215    o SEAICE_CGRID adjoint done
1216    o R_STAR adjoint implemented.
1217      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1218      * need to sort out init. of h0facc, etc.
1219    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1220      to be able to use it in pure forward.
1221    
1222    checkpoint58d_post
1223    o upgrade simple test-experiment to tutorial example:
1224     step.1: duplicate the experiment and (step.2) will remove the old copy.
1225      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1226      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1227      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1228      tutorial_global_oce_biogeo    <- copy of dic_example
1229      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1230      tutorial_plume_on_slope       <- copy of plume_on_slope
1231      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1232      tutorial_global_oce_optim     <- empty for now (David ?)
1233      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1234     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1235    o correct a sign problem in cost_scat.F
1236    o obcs and ptracers: fix boundary conditions for advections schemes
1237      with larger stencil
1238    o thsice adjoint: start
1239    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1240      completeness
1241    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1242      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1243    o ptracers adjoint:
1244      * avoid extensive recomputatations
1245      * fix missing re-init. of gptr (missed by TAF)
1246    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1247      me to turn off the excessive output to STDOUT that this package produces
1248    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1249      and add those terms in Vector-Invariant formulation.
1250    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1251      if the control period (xx_hfluxperiod etc) is 0
1252    o in profiles pkg, clean routines and fix details
1253    o in ecco pkg, reading ssh data:
1254      fix problem in case the model does not start at iter0=0
1255    o fix mnc-pickup/restart for ptracers
1256    o new package prifiles:
1257      code to compute profile-based cost by Gael Forget
1258      (modifs in ecco, ctrl, autodiff)
1259    o Benign bug fix in initialization (spotted by M. Mazloff) of
1260      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1261    
1262    checkpoint58c_post
1263    o adjoint: finish NLFS adjoint and provide reference output in
1264      verification/global_ocean.90x40x15/results_ad_nlfs
1265    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1266      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1267      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1268      with SEAICE_CGRID defined.
1269    o move calendarDumps from "data" to "data.cal" and clean-up the code
1270      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1271    o add useEXF & useCAL flags (for now, set in hard-coded way)
1272    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1273      (were missing in NH mode, and wrong in quasihydrostatic mode).
1274      waiting for Chris updated version of calc_gw to add those CALLs.
1275    o fix bug in quasihydrostatic S/R ;
1276      add a test for this option: global_ocean.90x40x15.qshyd
1277    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1278      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1279    o add on/off flag useOffLine for package OFFLINE
1280    o seaice:
1281      - modify advection so that it works also on the C-grid
1282      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1283        problem in multi-tile runs with C-grid
1284      - add flags for clipping ice velocities and/or masking solver forcing
1285      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1286        C-grid solver
1287      - added a few comments to seaice_diffusion.F
1288      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1289        are now exclusive)
1290      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1291        required re-ordering the code a little:
1292       + make DAIRN global variable (defined in SEAICE)
1293       + move computation of the viscosities eta and zeta into a new separate
1294         routine (because I need to recompute them in seaice_ocean_stress.F)
1295    
1296    checkpoint58b_post
1297    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1298      update output.txt of exp. aim.5l_cs.thSI
1299    o various mnc cleanups and improvements:
1300      + shrink lookup tables by factor of ~4
1301      + better error reporting when running out of lookup space
1302      + able to handle longer path/file names (up to 500 chars)
1303    o adjoint:
1304      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1305      - TBD: "hidden" mom_vecinv recomp. in dynamics
1306    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1307     (allow to differentiate between forcing components using new integer flags:
1308      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1309     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1310    o ecco
1311      - enable trend removal from SSH anomaly obs.
1312    o adjoint
1313      - a fix for PmEpR when #undef EXACT_CONSERV
1314      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1315      - try to fix "hidden" recomp. in forward_step for NLFS
1316        (NLFS seems broken sometimes after I checked it in)
1317    o seaice:
1318     - add c-grid version of the dynamic solver:
1319       + three new routines that are the c-grid substitute lsr, dynsolver
1320         and ostres
1321       + put a few fields that were local to dynsolver into global common
1322         blocks, so that I can move the computation of stresses etc into
1323         seaice_lsr (saves coding but may break the adjoint).
1324     - replace more hardwired parameters by runtime parameters
1325     - add ice masks that mask the rhs of the implicit solvers where there
1326       is no ice (commented out in seaice_dynsolver, because i am not sure
1327       if this works properly), eventually this should replace the clipping
1328       of ice velocities in seaice_dynsolver to +/-40cm/s.
1329    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1330      include it only where its needed
1331    o move balancing of fluxes before the call of external_forcing_surf
1332    o seaice:
1333      - correct units of turning angles (now they are really in degrees)
1334      - move computation of GWATX/Y out of main routine into dynsolver
1335      - initialize GWATX/Y in seaice_init
1336    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1337      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1338    o seaice: add runtime flags for turning angles (default to zero)
1339    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1340      and trend from exf forcing and ctrl control adjustments
1341    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1342      (since checkpoint57x_post)
1343    o change the default rotation period to 86164.s = the Earth rotation
1344    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1345      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1346    o seaice advection: add code for choosing between the default (2nd order
1347      central differences) and multiDim advection schemes provided by
1348      pkg/generic_advdiff
1349    o seaice:
1350      - removed all references to SEAICE_GRID.h fields from
1351        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1352        (cubed-sphere configuration will change a little)
1353      - grid computations in seaice_init are obsolete now.
1354      - cleaned up code a little so that is easier to read (hopefully).
1355      - added new (better?) discretizations of default advection and diffusion
1356        (turn on with SEAICEuseFluxForm)
1357      - replace 1 in 3d global fields by kSurface in growth.F
1358      
1359    checkpoint58a_post
1360    o seaice:
1361      - bug fix in advect.F
1362    o shelfice:
1363      - separate shelfice load anomaly from pload (breaks with time
1364        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1365        Its default is 0., but it may be computed more cleverly from (unknown)
1366        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1367        done offline. A good approximation of the pressure load anomaly is
1368        necessary to avoid large initial adjustment processes underneath
1369        deep-reaching shelfice.
1370      - small fix in ISOMIP shelfice_thermodynamics
1371      - add more sophisticated thermodynamics of Hellmer (1989), this is
1372        now the default
1373      - give a few constants more intuitive names
1374    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1375      if bulk formulae are used in long integration (especially EmPmR). Turn
1376      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1377      if balancePrintMean, the imbalance that is substracted is printed to
1378      STDOUT.
1379    o fix bug (typo) in obcs_apply_eta.F
1380    o add a new package shelfice which enables us to model the circulation
1381      underneath shelf-ice with draughts of hundreds of meters.
1382     - works
1383     - to do: + include improved thermodynamics
1384              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1385                instead of new field kTopC
1386              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1387                instead of new field R_shelfIce and new code in ini_depth.F
1388                and ini_mask_etc.F?
1389              + adjust vertical mixing schemes?
1390    o seaice pkg:
1391     - add a cpp-flag to include a simple formula for a salinity dependent
1392       freezing point of sea water at the surface
1393     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1394       meridional stresses are now different (and hopefully correct)
1395    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1396       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1397       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1398    o pkg/diagnostics: add options and parameters for regional-statistics
1399       diagnostics ; define regions by reading a region-mask from a file
1400       (might add other options later)
1401    o pkg/bulk_force:
1402     - add option and parameters to use AIM surface-flux formulae.
1403     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1404       others forcing fields (defined in PARM05, parameter file "data") are loaded
1405       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1406     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1407     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1408     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1409       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1410     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1411    
1412    checkpoint58
1413    o add "--embed-source" option to genmake2 which, when the supporting
1414      tools can be compiled (as determined by genmake2) will turn on the
1415      embed_files package which then embeds the entire MITgcm source code
1416      (*.[fFhc] + Makefile) used for the build within the executable
1417      - requested by CNH but off by default
1418      - adds a paltry <9MB to the mitgcmuv executable in most cases
1419      - only writes the output when useEMBEDSRC in eedata is true
1420    o clean up 3-dim. relaxation codes:
1421      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1422      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1423      * Thanks to Tom Haine for testing!
1424    
1425    checkpoint57z_post
1426    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1427      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1428    o fix the pickup behavior for obcs in combination with ptracers
1429    o fix a bug in ptracers_external_fields_load
1430    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1431      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1432    o transfered surface NH pressure to eta field (if exactConserv).
1433    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1434         and update lab_sea output.txt file.
1435    o completing 3-dim. relaxation code: additional term
1436         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1437      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1438      * At compile time, in "EXF_OPTIONS.h" set
1439          #define  ALLOW_CLIMTEMP_RELAXATION
1440          #define  ALLOW_CLIMSALT_RELAXATION
1441      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1442          tauThetaClimRelax3Dim = 15552000.0,
1443          tauSaltClimRelax3Dim  = 15552000.0,
1444      * 3 cases:
1445          1) Use a constant-in-time 3-dim. field
1446          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1447          3) Real-time relax. to time-evolving prescribed field
1448    o Adding Laplacian-type smoothness constraint on
1449      initial and boundary (forcing) controls (ic, bc)
1450      * enable at compile-time via
1451        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1452      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1453      * Absolute scale somewhat unclear so far
1454      * no area weighting was included since no other cost term does so far
1455    
1456    checkpoint57y_post
1457    First step for a NLFS adjoint
1458    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1459    o new init. routines for calc_r_star, calc_surf_dr
1460    o still need to deal with ini_masks_etc
1461    o testreport seemed happy
1462    checkpoint57y_pre
1463    
1464    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1465    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1466    o add new offset feature to offline pkg (plus minor cleanup)
1467    o cfc fixes for final year of integration
1468    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1469      be in GCHEM_OPTIONS).
1470    
1471    checkpoint57x_post
1472    o fix testreport Pb in multiple test experiment.
1473    o cleanup our namelist syntax in verification:
1474      - make it more F95 standards compliant (some work still needed)
1475      - allows the vast majority of our tests to work with gfortran
1476    o Non-Hydrostatic:
1477     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1478     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1479    o Allow to apply AB on T,S rather than on AB(gT,gS):
1480     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1481     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1482       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1483     - need a "clever" read_pickup to restart from the other AB formulation
1484    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1485    o remove some unused variables (reduces number of compiler warnings)
1486    o adjoint
1487      * Disable useVariableViscosity for adjoint for time being
1488        (there are a number of extensive recomputations)
1489      * Initialize certain variables needed for adjoint
1490    
1491    checkpoint57w_post
1492    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1493                 fix the singleCpuIO RS version of MDSWRITEFIELD
1494       and add a WARNING if using globalFiles=T with multi-processors.
1495    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1496      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1497    o tracer advection scheme:
1498      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1499       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1500       was not very convenient).
1501      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1502       (further tests needed for the implicit DST & Flux-Limiter schemes).
1503    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1504      and sRef for convenience, handy, when you want to initialize
1505      ptracers in a large domain with a constant non-zero value. Also,
1506      untangle ptracers_init.F a little.
1507    
1508    checkpoint57v_post
1509    o change dome exp. to use variable viscosity in side-drag terms.
1510    o remove all the files from the cfc_offline test since they are now
1511      incorporated into tutorial_cfc_offline which has been producing
1512      identical results for a few days of testing
1513    o add new parameter: sideDragFactor to enable half-slip-side BC
1514      and change side-drag S/R to use viscosity from mom_calc_visc
1515      (can switch back by setting sideDragFactor=0.); affects results at
1516      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1517       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1518    o vorticity & strain are now computed without masking, to account for
1519      no-slip-side BC in variable viscosity calculation ; mask is applied
1520      anyway later on, before computing advection/coriolis terms.
1521    o modify exp4 to test new obcs support for reading from external files
1522      and for passive tracers
1523    o fix behavior of ptracers_monitor when monitor output is written to a
1524      netcdf-file; still not independent of monitor.F (writes in the same
1525      file).
1526    o change default value of tRef (put a uniform, meaningful value for ocean
1527      & atmos) and initialize sRef (was missing, as Martin mentioned).
1528    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1529      to be proportional to enstrophy dissipation length.  Thus,
1530       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1531      This is now consistent with Smagorinsky and with the manual.
1532    
1533    checkpoint57u_post
1534    o OBCS and PTRACERS: add open boundary support for passive tracers
1535      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1536        OB-values from file; this is not different from the way theta and salinity
1537        are treated
1538      - however, Orlanski-radiation conditions are not supported, and the model
1539        will stop if you use pTracers and Orlanski at the same time.
1540      - beefed up the rountine obcs_external_fields_load: now only those open
1541        boundary values are overwritten with values from files for which there
1542        are really files, otherwise the OB-fields remain untouched. This makes
1543        it possible to use different OBs at different ends of the domain (as
1544        with EXF)
1545    o reduce number of exch calls in shap_filt (s2).
1546    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1547      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1548    
1549    checkpoint57t_post
1550    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1551    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1552      same truncation, independent of the face number: affects affects several
1553      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1554    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1555      note that biharmonic viscosity + no-slip was not tested in any experiment.
1556    o fix bug in non-linear free-surf side-drag ; generate new output for
1557      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1558    o make mnc honor the writeBinaryPrec flag for most kinds of output
1559    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1560    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1561      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1562    o add brackets in multi-terms sum to get same truncation, independent of
1563      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1564      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1565    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1566      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1567      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1568      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1569      Suggested values of viscosity parameters found in mom_calc_visc.
1570      Many new viscosity diagnostics available.
1571    
1572    checkpoint57s_post
1573    o Add clearing-house for viscosity calculations, mom_calc_visc and
1574      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1575      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1576      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1577      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1578      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1579      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1580      ViscAhStrain and viscAhTension are now retired.
1581    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1582    o In response to JMC's bug report, genmake2 now ignores any soft-links
1583      that it finds in the *current* directory when searching for files.
1584      Soft-links found in any other source directories will still work as
1585      they did before.
1586    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1587      a C routine to unlimit the stack size
1588    o mnc-ify pkg/aim snapshot vars
1589    o mnc-ify pkg/land as requested by Daniel
1590    o various changes to mnc including:
1591      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1592      - output can now be grouped so that all files within a group
1593          change the ITER portion of their names in lock-step together
1594      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1595          and works with both EXCH1 and EXCH2 (but needs more testing)
1596      - writing works for all verification test cases w/ g77 on Linux
1597    
1598    checkpoint57r_post
1599    o make MNC variable initialization happen earlier
1600    o add diagnostics for (almost) each term of the momentum Eq.
1601    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1602    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1603    o remove MINIMAL_TAVE_OUTPUT option ;
1604      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1605    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1606      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1607    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1608    o add time-dependent SST, SSS control
1609    o cost terms in ecco/ modularized (new cost_generic.F)
1610    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1611    o new infrastructure for seaice model vs. obs misfits in seaice/
1612      * driver from the_main_loop.F is seaice_cost_driver.F
1613      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1614      * gradient check in Exp. 6a of natl_box_adjoint/
1615    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1616      (see README file)
1617    
1618    checkpoint57q_post
1619    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1620    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1621      - bug was reported by Jean-Michel and Ian Fenty
1622    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1623      update exp. cpl_aim+ocn output.
1624    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1625      Needed for high-res. runs with large global files
1626      to be able to limit tapelev size
1627    o Changed some tests for adjoint:
1628      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1629      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1630      * global_ocean.90x40x15/ back to default 3-level checkpointing
1631    o Modifications to enable scripted COMMON to MODULE conversion
1632      * verification/OpenAD/code/ has necessary scripts and description;
1633      * converts, compiles and runs successfully;
1634    
1635    checkpoint57p_post
1636    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1637    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1638      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1639    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1640    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1641      (was already the case for dissipation with mom_vecinv,
1642       and also the case for grad.PhiHyd when staggered-timeStep)
1643      This will allow to put dissipation out-off the AB time-stepping.
1644     Unfortunately, affects truncation error. Update output of exp. that "fails"
1645      (cg2d matching number) and leave the others for later: front_relax(10),
1646      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1647      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1648    
1649    checkpoint57o_post
1650    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1651      (2) its ready to be documented during the 20050801 DocFest
1652    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1653      for ideal_2D_oce and lab_sea on linux_ia32_g77
1654    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1655      in global1x1_tot/code_seaice_adj to access indices 32, 33
1656      (worth another tag)
1657    
1658    checkpoint57n_post
1659    o adding precip control xx_precip 32
1660    o adding swflux control xx_swflux 33
1661    o Replacing 10 forcing penalty cost routines by 1 generic.
1662    o Implementing partitioning in time-mean and variable adjustment
1663      for atmos. state.
1664    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1665    o in natl_box_adjoint:
1666      * updated exp 1 to 10
1667        (but does not have time-mean vs. variable split results yet)
1668    o updated global1x1/*_seaice_adj/
1669      to incorporate latest changes
1670    o enable useSingleCpuIO for mdsio vector routines
1671      (applies in particular to tapelev I/O)
1672    o removed inefficient K-loop in all active_file*control*.F
1673    
1674    checkpoint57m_post
1675    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1676      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1677    o pkg/exch2: filling of face-corner halo regions is optional
1678      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1679    
1680    checkpoint57l_post
1681     tag before updating tutorials (pre-release-2)
1682    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1683       for output and interpolation of input fields onto model grid)
1684    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1685       Affects results of exp. rotating_tank ; update output.txt.
1686    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1687          and taking the square quantity and/or using a fraction-weight field.
1688    o fix aim_diagnostics_init.F mate numbers.
1689    o add mnc output capability to diagnostics/diagstat and update
1690      our cvsignore files for the ACSII output generated
1691    
1692    checkpoint57k_post
1693    o lab_sea now uses diagnostics package and provides a suite of
1694      new EXF diagnostics output.
1695    
1696    checkpoint57j_post
1697    o exf
1698      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1699        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1700        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1701      * extended diagnostics output
1702        - now includes all EXF variables
1703        - hs, hl moved to common block
1704        - separate S/R for diagnostics, called after ctrl vector is added
1705        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1706        - EXFqnet contains true Qnet (i.e. includes qsw)
1707      * updated verif. lab_sea, global_with_exf
1708      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1709        to ensure that diagnostics sees a true EXFqnet
1710    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1711    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1712      several times with different frequencies.
1713    o mnc-ify the thsice package as requested by Daniel Enderton
1714      - the monitor--MNC output needs work
1715      - many attributes need to be added (most are currently blank)
1716    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1717      - many attributes need to be added (most are currently blank)
1718    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1719    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1720    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1721      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1722         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1723    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1724     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1725    
1726    checkpoint57i_post
1727    o Diagnostics package was changed: diagnostic allocation is now deactivated
1728      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1729    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1730      add 1rst Order upwind vertical Shear.
1731    o add a quick fix for A/B checkpointing in OFFLINE mode
1732    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1733      end-run around the C/Fortran linking horror in eesup/src/timers.F
1734    o added pkg/runclock: allows user to terminate run based on wall clock
1735    o added non-hydrostatic scaling parameter: nh_am2
1736    o pkg/my82: futile attempt to make results compiler-independent by adding
1737      some "_d 0", etc. no effect.
1738    o for mnc output, fill the 'T' coordinate var with myTime and create a
1739      separate 'iter' variable for iteration count
1740    o pkg/diagnostics:
1741      add new capability: output of Global/Regional & per-level statistics ;
1742      tested against monitor output (including land & thSIce) on various exp.
1743    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1744    
1745    checkpoint57h_done
1746      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1747      data.diagnostics, data.gchem, data.ptracers) is done.
1748    
1749    o pkg/diagnostics: prepare for Global/Regional statistics.
1750      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1751    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1752      and rename it: DIFFERENT_MULTIPLE
1753    
1754    checkpoint57h_post
1755    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1756    o pkg/diagnostics: change output frequency, now in seconds (instead
1757      of Nb of iterations). This requires to change data.diagnostics.
1758    checkpoint57h_pre
1759    
1760    o in mnc, let the user create the output dir if both mnc_outdir_date
1761      and mnc_outdir_num are false
1762    o add fflags() to pkg/diagnostics which allows one to specify, on a
1763      per-file basis, the file precision [default behavior is unchanged]
1764    o added diagnostics to pkg/kpp, including computation of mixed layer
1765      depth based on a temperature/density criterion
1766    o updated verification/natl_box to test the new pkg/kpp diagnostics
1767    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1768    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1769    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1770      not mnc -- this mistake was found by JMC and is now corrected
1771    
1772    checkpoint57g_post
1773    o add Adams-Bashforth 3rd Order time stepping:
1774      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1775      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1776    checkpoint57g_pre
1777    
1778    o make lambda[Theta,Salt]ClimRelax spatially varying
1779      (default remains spatially uniform constant based on tau)
1780    o added new control variables
1781      * init. uVel, vVel, etanN
1782      * lambda[Theta,Salt]ClimRelax
1783    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1784      (suggested by G. Forget)
1785    
1786    checkpoint57f_post
1787    o add parameter "baseTime" = model base time = time at iteration zero
1788      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1789      account for baseTime shift
1790    o move Coriolis arrays from PARAMS.h to GRID.h
1791    checkpoint57f_pre
1792    
1793    o mnc-ifying the seaice package
1794    o introduced an alternative length scale calculation for use in the limiting
1795      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1796    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1797    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1798      as well as grad(vort3).  Made it compatible with both approximate form
1799      for the cubed sphere and full form of these gradients.  Added flag
1800      useFullLeith to select between approximate and full form.  
1801    o add "d0" in getcon.F to reduce differences between compilers/platforms
1802      update output.txt of exp. fizhi-gridalt-hs
1803    o change port_rand funtion to allow to set the seed.
1804    o fix obscure MNC bug involving conversion between reals and integers
1805      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1806        new version is now more standards-compliant
1807    o adjoint-related modifications
1808      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1809      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1810      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1811    
1812    checkpoint57e_post
1813    o Adding eddy stress controls a la Ferreira et al.
1814    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1815    
1816    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1817      update output.txt of exp. fizhi-gridalt-hs
1818    o add more "Z" dimensions and associated coordinate vars to MNC
1819    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1820    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1821      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1822      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1823      months and years.  Requires pkg/cal.
1824    o diagnostics: add pickup functionality
1825      - off by default for backwards compatibility
1826      - current version only uses MDSIO -- MNC will be added
1827    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1828    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1829    
1830    checkpoint57d_post
1831    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1832    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1833      output from the diagnostics package
1834    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1835    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1836      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1837    o add coordinate variables to the MNC output from the diagnostics package
1838    o change MNC-flags default value: true when useMNC=TRUE
1839    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1840      the ability (off by default) to read the grid information using MNC
1841    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1842    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1843    o do snap-shot diagnostics at the middle of the time-interval (instead of
1844      at the end).
1845    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1846      new test for AIM with thSIce + slab-ocean
1847    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1848    o move state variable diagnostics to the beginning of the time step ;
1849      (note: still needs some work specially for snap-shot diagnostics)
1850      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1851    
1852    checkpoint57c_post
1853    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1854    o generate new output.txt files on faulks with g77 & the new -ieee option
1855    checkpoint57c_pre
1856    
1857    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1858      update output.txt of exp. global_ocean.90x40x15
1859    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1860      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1861    o add saltFlux(+File) forcing capability with periodicExternalForcing
1862    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1863    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1864    o improvements for the MNC output from DIAGNOSTICS:
1865      - correct handling of the unlimitied dimension
1866      - all dims now have associated coordinate variables
1867      - variables located at U, V, and Corner ("Z") points are now written
1868        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1869        *all* data points are output
1870    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1871    o added pkg/seaice/seaice_monitor.F
1872    o mdsio_readfield.F can now read files visible only to master MPI process.
1873    o pkg/seaice: some test code for ice-modified ocean stress
1874    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1875      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1876      spurious negative numbers for precipitation and humidity.  Will cause
1877      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1878    o pkg/ctrl/
1879      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1880        May be enabled via doPackDiag
1881      *  introduce z-scaling of
1882         + gradient (doZscalePack) and
1883         + control (doZscaleUnpack)
1884    o pkg/mdsio/
1885      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1886      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1887    
1888    checkpoint57b_post
1889    o simplify options in diagnostics_fill arguments (remove weird combinations)
1890    o fix MNC coordinate variables so that they now contain per-face index
1891      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1892      general, EXCH2 grids are only aligned to a "local" coordinate system
1893    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1894    o Implement instantaneous output within pkg diagnostics:
1895      setting a negative frequency in data.diagnostics produces
1896     "snap-shot" output (as opposed to time-average if freq > 0)
1897    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1898      NOTE: change ptracer diagnostics name: use 2 characters to work with
1899            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1900    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1901      becomes the coordinate variable for the 'T' dimension
1902    o add CF-style coordinate variables to MNC
1903      - just a first cut:  numbers are meaningless on the cubesphere and
1904        missing along the T axis but otherwise it works!
1905    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1906    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1907    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1908      this is based directly on what the model compute, so that the content of
1909      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1910    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1911    o clean up build options files for SunOS, in particular
1912      - remove -traditional from xmakedepend
1913      - change -xarch=v9 to -xarch=native for f77
1914      - restore use of make (not gmake)
1915      - add CC=gcc if using g77
1916    o changes per discussion of AM, JMC, & EH3 today:
1917      - move redundant "grid" variables out of "state" -- in preparation of
1918        creating proper CF-style coordinate variables and in recognition
1919        that any/all grid variables can be easily copied (eg. w/NCO) from
1920        the grid files into any of the other NetCDF files
1921      - *always* output grid variables with MDSIO (this will eventually be
1922        changed)
1923      - output MNC grid file if useMNC is true
1924    o every instance of _END_MASTER() has been found and replaced with
1925      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1926      preprocessors
1927    o re-arrange diagnostics pkg initialisation:
1928     - allow each package to extend the available diagnostics list
1929     - add some checking and fix small problems (multi-threaded, ...)
1930     - new S/R diagnostics_fill (replace fill_diagnostics):
1931       look through the short list of active diag. (instead of the long list)
1932       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1933    
1934    checkpoint57a_post
1935    o this set of changes restores TAMC compatibility
1936      tested for global_ocean.90x40x15 adjoint on trough
1937      (what a pain)
1938    
1939    checkpoint57a_pre
1940    o some modifs in tools/build_options for sunos
1941    o call ctrl_pack for ctrl at end for optimcycle=0
1942    
1943    checkpoint57
1944    o add horizontal bi-harmonic viscosity for vertical velocity
1945      - new parameter viscA4W (defaults to viscA4)
1946      - affects only non-hydrostatic code
1947      - to be done: no-slip lateral boundary conditions
1948    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1949    o implement Implicit Vertical advection for pTracers
1950    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1951      (implemented also for implicit vertical diffusion & advection)
1952    o OBCS: extend application of tracer open boundary conditions
1953      to a strip beyond the boundary of width Olx/Oly
1954    o add call monitor to TAF set of required calls (flow directives)
1955      and include in natl_box_adjoint
1956    o untangle a few ifdefs related to cost, ctrl, autodiff
1957      untangel a few ALLOW_ECCO_OPTIMIZATION
1958    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1959      (theta2, salt2 in ecco_cost_weights)
1960    
1961    checkpoint56c_post
1962    o OBCS as control variables
1963      - update ctrl_ad_diff.list, obcs_ad_diff.list
1964      - remove balance of obcs controls from default
1965      - fix index bug nobcs in ctrl_init
1966      - fix dummy fields filen in ctrl_pack
1967      - add dummy weights for obcs
1968    o lsopt: comment out fort.94 output
1969    o optim:
1970      - remove unnecessary header files
1971      - adjusted namelists
1972      - add xerbla.F to Makefile
1973    o exf:
1974      - multiple modifications of exf_check_range
1975      - unit change in exf_init_runoff from [m/year] to [m/s]
1976    o mdsio:
1977      - i/o-vector change debugLevel from debLevA to debLevB
1978    
1979    checkpoint56b_post
1980    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1981      is called from DO_THE_MODEL_IO
1982      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1983      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1984      - clean up PTRACERS_WRITE_TIMEAVE a little
1985    o add another verification experiment that tests both the cfc-pkg and
1986      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1987      reactive tendencies treated inline with regular timestepping
1988    o testreport previously did a lousy job of comparing small numbers, so
1989      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1990      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1991      testreport.
1992    o ptracers_monitor: bug fix for MPI
1993    
1994    checkpoint56a_post
1995    o GCHEM: finish reorganizating the package
1996      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1997        (introduces another 3D-array for each passive tracer, but only if
1998        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1999        gchemTendency is not needed because the timestep is done separately)
2000      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2001      - GCHEM is now---more or less cleanly---separate from PTRACERS
2002      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2003        so clear to me how that should be done in a general way.
2004    o CFC: improve formatting of output in CFC_ATMOS
2005    o PTRACERS:
2006      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2007        that ALL experiments with ptracers enable can be checked. This makes
2008        GCHEM_MONITOR obsolete.
2009      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2010        monitorFreq
2011      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2012    o add PTRACERS (PTR0[1-5]) to testreport output
2013    o exf_check_range:
2014      * default changed to .TRUE.
2015      * will check values for niter0 if debLevA, every timestep if debLevB
2016      * STOP in exf_check_range if 'out of range'
2017      * range chosen generous to allow for potential extema
2018      TBD: a version with stricter range
2019           permitted range would be runtime parameters
2020    o GMredi:
2021      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2022      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2023      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2024    o GCHEM:
2025      - move call to GCHEM_FORCING_SEP, so that it is now called before
2026        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2027      - introduced a useGCHEM runtime flag and applied it everywhere.
2028      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2029        this flag is now only visible within GCHEM-pkg routines.
2030      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2031        be replaced by a 3D array that is computed before thermodynamics; for
2032        this, the tracer ID iTracer had to be included into the parameter list
2033        of ptracers_forcing
2034      - set up forward_step to call gchem_forcing, that will replace
2035        gchem_forcing_int in ptracers_forcing
2036      - cleaning up
2037    o small cleaning of exch2: remove files that are also in eesupp/src
2038    
2039    checkpoint56
2040    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2041    o mnc: cleanup "full" files--fixes out-of-memory problem
2042    o ECCO-GODAE
2043      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2044      * fully merged and updated from SIO code
2045        windstress sign change affects
2046        - exf_inscal_[u/v]stress
2047        - sign of xx_tau[u/v] adjustments
2048        - signs in cost_scat
2049      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2050      * natl_box_adjoint updated and compressed
2051      * 2-level checkpoint switch added
2052        (tested in EXP. 1 of natl_box_adjoint)
2053      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2054    o SVD
2055      * first complete, non-hacked version for SVD calculations
2056      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2057        performed via direct access files admtlm_vector.it????
2058        (via ctrl_[un]pack)
2059      * optimcycle is used for ARPACK iteration counter
2060        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2061      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2062        and add linear transforms where necessary
2063      * controls are initial/final SST, SSS (can be extended; need to check
2064        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2065    o mdsio: filename info to both stderr, stdout
2066    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2067      from sign change
2068    
2069    checkpoint55j_post
2070    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2071      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2072    o add consistent build directories and .cvsignore files to verification
2073    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2074    o make all subroutines 30 or less characters in length for certain older
2075      compilers to work (a thorough search only turns up two routines in
2076      pkg/ptracers)
2077    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2078      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2079    
2080    checkpoint55i_post
2081    o change arrays for total vertical diffusivity (2.D if explicit,
2082      3.D if implicit) ; each ptracer uses its own background value.
2083    o added mnc/NetCDF output capability to ocn_compon_interf
2084      - added bits to verification/cpl_aim+ocn so that it can run on
2085        ITRDA and other clusters without the mpirun "-wd" option
2086    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2087      configuration
2088    o give MNC the ability to create additional files rather than
2089      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2090      - the default is just less than 2GB which is a practical limit
2091        on many systems
2092    o Compute the non-local term using either KPP vertical diffusivity (=default)
2093       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2094    
2095    checkpoint55h_post
2096    o add verification test "vermix"
2097    o remove all the *_ioinc flags and replace with the single global
2098      outputTypesInclusive flag
2099    o allow to set a vertical profile of vertical diffusivity for T & S
2100    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2101    o useMNC moved from data.mnc to data.pkg
2102    
2103    checkpoint55g_post
2104    o Renaming carbon AD experiments to comply with testreport conventions
2105    o Updating adjoint of Held-Suarez hs94.1x64x5
2106    o Fixing directives for non-ECCO forward_step, after ECCO directives
2107      have been fixed to avoid recomp. of do_oceanic_phys
2108      Works well for global_ocean.90x40x15,
2109      but recomp. issue remains for carbon
2110    o Updating adjoint output for natl_box_adjoint after
2111      pkg/ecco has been modified (see taga c55d_post)
2112    
2113    checkpoint55f_post
2114    o rename to timeave_init_fixed
2115    
2116    checkpoint55e_post
2117    o some delicate re-shuffle of store directives to avoid one
2118      extra call of do_oceanic_physics
2119      affects ecco_the_main_loop.F, do_oceanic_physics.F
2120      checkpoint_lev1_directives.h
2121    o NB: this may break global_ocean adjoint temporarily,
2122      but it is clear how to fix it. Will do later, need this now.
2123    
2124    checkpoint55d_post
2125    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2126    o ecco_cost_weights is modified to 1x1 runs
2127    o modifs to allow observations to be read in as
2128      single file or yearly files
2129    o enable to read exf forcing fields as either
2130      single file or yearly files (flag useExfYearlyFields)
2131    checkpoint55d_pre
2132    
2133    o switch between 2-level and 3-level checkpointing
2134    o add ability of MNC to write local and "partial" (eg. 2D slices where
2135      the full 3D field is never actually stored) arrays to NetCDF files
2136      with the correct (that is, the complete multi-dimensional) set of
2137      array indicies
2138      - used in mom_vecinv() to write the diagFreq output
2139      - tested (demonstrated) in verification/aim.5l_cs
2140    o further mnc-ification
2141      - add verification/lab_sea to the list with mnc setups
2142      - fix undefined mnc v-names in cd_code
2143      - add kpp to mnc output (both snapshot and timeave)
2144    o non-hydrostatic code
2145      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2146        in calc_gw.F
2147      - defaults to viscAh
2148      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2149        friction or Leith) in non-hydrostatic mode, as long as there is
2150        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2151    o pkg/cost
2152      extend simple cost functions to treat time mean quantities
2153      (T,U,V) via cost_accumulate_state from cost_tile
2154    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2155        be 2 times larger than the minimum size the advection scheme requires.
2156        now get a perfect conservation of salt in advect_cs test-exp (updated)
2157    o GGL90 (Gaspar's TKE mixed layer)
2158      - add horizontal diffusion of TKE, requires exchanges in
2159        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2160        default. In OPA there is no horizontal diffusion of TKE but the
2161        mixing coefficients are computed from a horizontal average of TKE of
2162        6 points or so. I think that diffusion has a little more physical
2163        justification.
2164      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2165        was in vain)
2166      - mask tke-variable in ggl90_init
2167    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2168    o fix biharmonic diffusion on CS-grid.
2169    o more obcs stuff
2170      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2171        for reading boundary values. This routine is called from
2172        obcs_prescribe_read
2173      - updated obcs_check
2174      - changed sponge layer relaxation parameter units for days to seconds
2175      - turned off sponge layer by default
2176      - changed argument list of OBCS_CALC to myTime+deltaTclock
2177      - fixed about 35 bugs in obcs_external_fields_load
2178    
2179    checkpoint55c_post
2180    o obcs stuff
2181      - new runtime flags useOBCSprescribe, useOBCSbalance
2182      - re-arranged obcs_calc
2183      - moved exf_getobcs to obcs_prescibe_read
2184        obcs_prescibe_read is called after ORLANSKI stuff
2185        and independent of it (executable can contain all).
2186      - updated obcs_check
2187      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2188        These may be necessary only if tangential velocities are
2189        prescribed at OB, not sure, needs testing.
2190    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2191      which simplifies the calls and passes the ifc check-bounds test
2192    
2193    checkpoint55b_post
2194    o add a 2D scalar, Z location, exchange_2 routine.
2195    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2196      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2197      affects advect_cs results (for the wrong reason): update output.txt
2198    o use a more standard discretization for biharmonic viscosity ;
2199     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2200      affects results of dome set-up: update output.txt
2201    o fix gad_advection.F (CubedSphere part), back to version 1.23
2202    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2203    
2204    checkpoint55a_post
2205    o merged code to
2206      * prescribe/read time-dependent open boundaries
2207        (works in conjunction with exf, cal)
2208      * sponge layer code for open boundaries
2209      * each boundary N/S/E/W now has its own CPP option
2210        (healthy for the adjoint)
2211    
2212    checkpoint55
2213    o up-to-date adjoint of previous breaks
2214      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2215      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2216      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2217      - carbon: * remove tr1-related adjoint verification
2218                * add ptracer as control variable
2219    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2220      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2221    
2222    checkpoint54f_post
2223    o in verification/carbin/ remove experiment related to
2224      ALLOW_PASSIVE_TRACER (array tr1 etc)
2225      code_ad/ input_ad/ results_ad
2226    
2227    o add two new packages
2228      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2229        + subject to optimization (memory)
2230      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2231        + subject to reordering (many GOTOs in the original code)
2232        + so far opps is called for every (i,j) point, and then operates in
2233          the vertical; one may want to reorder the scheme in order operate in
2234          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2235          fields)
2236    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2237      - all verification tests compile and run with linux_ia32_g77
2238      - defaults are compatible with current input files--nothing
2239        should change if you were not previously using MNC
2240      - MNC output has been added in numerous places (eg. timeave)
2241        but there are still a few writes not yet do-able with MNC
2242        (this is in progress)
2243      - flags now allow for either/or/both use of MDSIO and MNC and
2244        documentation will soon follow
2245      - numerous small formatting cleanups for ProTeX
2246    o add version info (via BUILD_INFO.h) to MNC and stdout
2247    
2248    checkpoint54e_post
2249    o add two new packages
2250      - pp81 (Packanowski and Philander, 1981), Richardson number and
2251        stratification dependent mixing
2252      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2253      - these scheme operate in a similar manner as KPP (without ghat, of
2254        course), however there is only one diffusivity that is used for both
2255        temperature and salinity (and passive tracers)ç
2256    o add offline package
2257    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2258      provided by Stephanie Dutkiewicz
2259    o genmake2: add ability to search for C compilers and cleanup test output
2260      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2261    
2262    checkpoint54d_post
2263    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2264    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2265      leading to additional shift by 5 days each year of integration
2266       (i.e. leading to considerable offset over the years)
2267    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2268    o start with no AB and no initial filtering (staggerTimeStep):
2269      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2270    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2271      (external loading & cpl import/export stay in forward_step.F)
2272    o update coupling interface to work with new staggerTimeStep
2273    o change MDSIO ptracers_pickup.
2274    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2275    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2276    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2277    
2278    checkpoint54c_post
2279    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2280      this affects (truncation error) output.txt of test-exp:
2281       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2282    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2283    o change Qnet to always be the net heat flux, (+upward).
2284      affects (truncation error) output of natl_box exp.: updated
2285    o define the max number of passive tracers in PTRACERS_SIZE.h
2286    o start to test mnc routinely in exp0
2287    o add sea-ice loading (sIceLoad) as a new forcing field.
2288    
2289    checkpoint54b_post
2290    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2291       impressive on Altix and Opteron systems)
2292    o diagnostics can now write NetCDF files through the mnc package
2293    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2294    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2295    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2296      affects (truncation error) output of lab_sea & natl_box exp.: updated
2297    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2298    
2299    checkpoint54a_post
2300    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2301    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2302    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2303    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2304      + internal_wave (shift in writing cg2d_ini_res)
2305    checkpoint54a_pre
2306    
2307    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2308      - modified verification/lab_sea and natl_box_adjoint accordingly
2309    
2310    checkpoint54
2311    checkpoint53g_post
2312    o prepare splitting of thermodynamics: store convect.counter in common block
2313    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2314      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2315    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2316    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2317    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2318    o restore adjointability
2319    
2320    checkpoint53f_post
2321    o modifications that affect AIM experiment results (update output.txt):
2322      - no advection of S at top interface Nr (pkg/generic_advdiff)
2323      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2324    o AIM pkg:
2325      - include stability function into surf.Flux derivative relative to Tsurf
2326      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2327    
2328    checkpoint53e_post
2329    o merged cylindrical coord configuration
2330    o added rotating_tank experiment
2331    checkpoint53e_pre
2332    
2333    checkpoint53d_post
2334    o faulks upgraded: re-generate output.txt that have changed:
2335       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2336    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2337    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2338    o added Sadourny discretization of Coriolis
2339      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2340      - re-enabled use of omega3 (useAbsVorticity)
2341    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2342      vector-invariant equations
2343      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2344    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2345      hopefully without new bugs
2346      - still to do: biharmonic friction for non-hydrostatic w
2347    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2348    o regenerated output for global_ocean_ebm (using -ieee)
2349    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2350      of mom_common/
2351      - simple re-arrangement of instructions within computing loop
2352    checkpoint53d_pre
2353    
2354    checkpoint53c_post
2355    o new version of coupler for AIM+thSIce and Ocean models
2356     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2357     - land: change Evaporation of snow
2358     - aim with thSIce: fix bug in snow-precip.
2359    o changes to calc_gw.F
2360     - bug fix for w^2 term near the bottom boundary
2361     - (hopefully) improve the lateral slip boundary condtions for use with
2362        partial/looped cells
2363      - because the bug fix changes two verification experiments anyway (exp5
2364        and plume on slope), change the lateral boundary condition from half slip
2365        to the value of no_slip_sides
2366    o ebm package wasnt quite up to the parallel task. Fixed that.
2367    o Adjoint of EBM package + verification
2368      * TLM OK
2369      * ADM not sufficient accuracy yet (needs further testing)
2370    
2371    checkpoint53b_post
2372    o Commiting new energy balance model to repository
2373      * package is pkg/ebm
2374      * verif. is verification/global_ocean_ebm
2375      * references are in ebm_driver.F
2376    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2377    C        Global thermohaline circulation. Part I:
2378    C        Sensitivity to atmospheric moisture transport.
2379    C        J. Climate 12(1), 71-82
2380    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2381    C        Global thermohaline circulation. Part II:
2382    C        Sensitivity with interactive transport.
2383    C        J. Climate 12(1), 83-91
2384    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2385    C        Destabilization of the thermohaline circulation
2386    C        by atmospheric eddy transports.
2387    C        J. Climate 7(12), 1870-1882
2388    o Will need long integration testing.
2389    checkpoint53b_pre
2390    
2391    o created pkg/mom_common in preparation for variable viscosity code
2392    o renamed and split ini_mnc_io
2393    o pkg/land: only liquid water can diffuse or run-off
2394    o AIM using land: soil wetness availability account for snow
2395    o added printMapIncludesZeros to EEPARMS namelist
2396    
2397    checkpoint53a_post
2398    o restore TAMC compatiility for exf_constants.h
2399      (no usage of _d in .h)
2400    o Additional storing in KPP in an attempt to fix
2401      TAMC problem with adjoint of KPP code.
2402      (no success...)
2403      Identical code works fine with TAF.
2404    o Fixed verification/natl_box_adjoint experiments.
2405      Initial conditions for Experiments 4 and 5 are now
2406      set to "SEAICE_initialHEFF=0", which is more reasonable,
2407      and hence gives results closer to that of Experiment 2.
2408      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2409    
2410    checkpoint53
2411    o stable checkpoint with up to date adjoint
2412      TLM tests only run for 1st grdchk at the moment. Its unclear if
2413      this is a code problem or a problem with resetting code for g_
2414      variables that is being autogenerated wrong.
2415      Otherwise:
2416       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2417       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2418         are both still in chaos following their security messes.
2419    
2420    checkpoint52n_post
2421    o various build (mostly genmake2) changes including:
2422      - ability to build/run more easily within Cygwin and MacOS X
2423      - more complicated Makefiles with a stronger dependence on Gnu Make
2424    o pkg/seaice modifications
2425      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2426        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2427        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2428      - changed proxy for geostrophic velocity and updated
2429        verification/lab_sea/results/* accordingly
2430      - removed ADI dynamic solver from pkg/seaice
2431      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2432        they caused a segmentation fault under certain circumstances
2433      - removed unused field WATR
2434    o bug fix in exf-package:
2435      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2436         now reflect that.
2437    o small fixes in the cal-package:
2438      - set reference date to first of January for the 'model'-calendar
2439      - failing of cal_CheckDate in cal_FullDate now actually results in a
2440        warning
2441    o small modifications in exf-package to increase flexibility:
2442      - change climtempfreeze from a constant to a runtime parameter that
2443        is specified in data.exf_clim (default = -1.9)
2444      - introduce runtime parameter windstressmax (default = 2.0) that is
2445        specified in data.exf
2446    o fix in pkg/thsice:
2447      - update Evap (Tsf changes) to be consistent with Latent heat flux
2448      - maintain snow precipitation unchanged (even if Tsf >=0).
2449     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2450    
2451    checkpoint52m_post
2452    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2453      this does not change any of the results, because myIter=0 in swfrac always
2454      lead to jwtype=2 (the default anyway), but the call makes little sense
2455      as a default
2456    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2457    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2458      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2459    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2460    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2461    o extending useSingleCpuIO option to work with new exch2 I/O format
2462      - old-style, missing-tile I/O is still accessible by defining CPP
2463        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2464    o monitor package can write to NetCDF files and/or STDOUT
2465    o fix re-definition bug in MNC_GRID_INIT_ALL()
2466    o doc/api_reference added
2467      - a framework for building an API Reference Manual using all
2468        the "protex" comments embedded in the code
2469      - see pkg/generic_advdiff, pkg/mnc for examples
2470    o MNC:
2471      - make myThid the last argument for all subroutines
2472      - new default for the grid files: NO halos
2473      - add useMNC and other run-time flags
2474      - separate per-file-group handling of the unlimited dimension
2475      - early initialization of MNC w/ flags read at the eeboot stage
2476        and lookup tables set in initialize_fixed
2477      - write all MNC output to a freshly-created directory
2478    o thermodynamics sea-ice (thsice) is now tested with testreport.
2479    o test exp. advect_cs: use the standard cs32 grid ; update output.
2480    o Added functionality to grdchk:
2481      pick global i,j,k position (or nearest wet) where to perform check.
2482    
2483    checkpoint52l_post
2484    o new land formulation:
2485      a) use ground enthalpy as prognostic variable to ensure exact
2486         energy conservation.
2487      b) account for water temperature and for latent heat of freezing
2488         in all processes (rain, run-off, ground storage)
2489      c) compute surface and ground temperature implicitly.
2490    o aim_v23 modification for new land model:
2491      a) Treat separately land / ocean / sea-ice surface fluxes
2492         to allow implicit computation of land & sea-ice surface temp.
2493      b) add snow precipitation.
2494    checkpoint52l_pre
2495    
2496    o fix problem (when 1 tile is empty) in min/max monitor.
2497    o fix bug in timeAve (u,vZetatave in common block)
2498    o no restoring terms under ice for pkg/seaice
2499    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2500    o bug fix for pkg/seaice pickups
2501    o change MNC call locations and add coordinate attributes
2502    o mask vorticity at the corner ; affects global_ocean.cs output
2503    o fix ini_curvilinear_grid ; test CS experiments with mpi
2504    o aim.5l_cs: modify sea-ice fraction input file ; update output
2505    o exf: Adding simple range check routine for exf fields after read
2506    
2507    checkpoint52k_post
2508    o removed top-level directory "diags"
2509      - we migrated these functions to pkg/timeave a long time ago
2510    o fixed bug introduced in pkg/monitor
2511    o accuracy ctrlprec = 32 insuffient for gradient checks using
2512      averaged fields (I/O via cost_averages)
2513      -> use ctrl.h in active_file*.F to control I/O precision.
2514    o paramter list of CALL ADTHE_MAIN_LOOP
2515    o added initial do_the_model_io to ecco
2516    o set all ...Freq to zero after cost_final
2517      taveFreq, dumpFreq, pChkptFreq
2518    o MAIN and ECCO differentiability restored
2519    
2520    checkpoint52j_post
2521    o fix nchklev in tamc.h for global_ocean...
2522    o Bringing flow and store directives up-to-date
2523    o Really weird thing!
2524      call do_the_model_io from the_main_loop with parameters
2525      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2526      TAF places a faulty re-call of initialise_varia
2527      after cost_final call which should not be there!
2528    checkpoint52j_pre
2529    
2530    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2531      error messages
2532    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2533    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2534      debug output
2535    o modfied mdsio_writefield.F to handle non-global files under exch2
2536    o update AIM Cubed-Sphere exp (aim.5l_cs):
2537      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2538    o update AIM Equatorial Channel exp:
2539      use standard aim_v23 pkg and change the SST fields to be more realistic.
2540    o globalFile now works with exch2
2541    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2542      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2543    o limit timeave output for hi-res integrations
2544    
2545    checkpoint52i_post
2546    o removed CPP_EEOPTIONS.h from verification/*/code
2547    o updated the tiling for global_ocean_pressure
2548    checkpoint52i_pre
2549    
2550    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2551      the old pkg/aim).
2552    
2553    checkpoint52h_pre
2554    o shortened offending lines in exch2_send_rx?.template
2555    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2556    o genmake2: add build & execute test for NetCDF code
2557    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2558      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2559    o added useSingleCPUIO flag to monitor.F and mon_out.F
2560    o added temporary hack for sea-ice dynamics on the cube:
2561      metric terms are ignored and it is assumed that
2562      there is no sea-ice on cube faces 1, 2, 4, and 5.
2563    
2564    checkpoint52f_post
2565    o added exch2 cube routines to pkg/exch2
2566    o modified hs94.cs-32x32x5 to use it
2567    o added new grid files to hs94.cs-32x32x5
2568    checkpoint52f_pre
2569    
2570    checkpoint52e_post
2571    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2572      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2573    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2574      to work with implicit vertical advection and AB ;
2575    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2576    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2577     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2578    checkpoint52e_pre
2579    
2580    o fix bug in impldiff when Nr=1 or Nr=2.
2581    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2582    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2583    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2584      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2585    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2586    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2587    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2588    
2589    checkpoint52d_post
2590    o re-tiled many expts to allow comparison in multi-processor mode
2591      - updated output accordingly
2592      - changed hs94.128x64x5 to use intial T from file rather than use the
2593        random number generator
2594    o add infrastructure in model routines for fizhi and gridalt packages
2595    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2596    o changes to permit hi-res, cubed-sphere, configuration
2597      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2598      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2599      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2600        of surface winds for the cube
2601      (A verification experiment, based on global_ocean.cs32x15, but with
2602       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2603       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2604       complete with example surface forcing files and matlab scripts to look
2605       at the output and compare it with that of global_ocean.cs32x15.)
2606    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2607       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2608       to conform to the common rule.
2609    o check-in the first version of the coupler + interfaces for multi-components
2610       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2611       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2612       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2613       - ocean and atmos. share the same horizontal grid (no interpolation).
2614       - exchanges between component and coupler is done in forward_step
2615    o new verification experiment, cpl_aim+ocn:
2616       coupled ocean - AIM atmosphere on cs32 grid.
2617    
2618    checkpoint52d_pre
2619    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2620    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2621    
2622    checkpoint52c_post
2623    o Fixing OPTIONS files for use of exf:
2624      - ALLOW_ECCO not needed
2625      - ECCO_CPPOPTIONS.h should not be included from
2626        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2627        as has been the case in the past
2628      - All cal/exf related options are currently set in
2629        single header file. Should remain so until we
2630        agree on a consistent new policy.
2631    o Removed all CPP options for cal package.
2632      cal has no more CPP options.
2633    o modified STOREs in GAD_ADVECTION
2634    o corrected key comp. for passkey
2635    
2636    checkpoint52b_post
2637    o new version: "thsice" of thermodynamic sea-ice pkg:
2638     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2639     - modify fluxes but do not change theta directly;
2640     - light cleaning of bulk_force pkg (still needed with thsice).
2641     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2642       + output_thsice.txt to test thsice & bulk_force pkgs.
2643    o put back grid & coriolis monitor output.
2644    checkpoint52b_pre
2645    
2646    o call "do_the_model_io" at the beginning (=> dump initial state)
2647    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2648    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2649      (need info on NUMBER_OF_PTRACERS)
2650    o missing PTRACERS headers in some routines
2651    o default tamc.h in pkg/autodiff supposed to crash
2652      to ensure proper customization
2653    
2654    checkpoint52a_post
2655    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2656      - moved surfaceTendencyTice from pkg/seaice to main code
2657      - subroutine FREEZE_SURFACE now limits only surface temperature
2658        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2659        => new output.txt for global_ocean.cs32x15 & global_with_exf
2660      - keep the old version of FREEZE for backward compatibility;
2661        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2662      - corresponding modifs for TAF directives
2663    o added surface flux output variables to TIMEAVE_STATVARS
2664    o time-averaged output for pkg/ptracers
2665    o fix problem with ECCO-related divided adjoint
2666      snapshot file was missing some ad-variables,
2667      but no warning issued by TAF
2668    
2669    checkpoint52a_pre
2670    o some bug fixes for #undef REAL4_IS_SLOW
2671    
2672    checkpoint52 = ecco_c52_e35
2673    o after testing adjoints of checkpoint51u_post
2674    
2675    checkpoint51u_post
2676    o this is the post-merge tag of the ecco-branch
2677      (needs another clean checkout and re-testing)
2678    o various natl_box_adjoint configs and results
2679      but no input fields
2680    o obcs adjoint not yet merged!
2681    o adding ECCO global 1x1 and 2x2 degree configs
2682    o updated/extended some store directives for seaice
2683    o pkg/ecco now containes ecco-specific part of cost function
2684    o top level routines the_main_loop, forward_step
2685      supersede those in model/src/
2686      previous input data.cost now in data.ecco
2687      (new namelist ecco_cost_nml)
2688    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2689    
2690    checkpoint51t_post
2691    o this is the pre-merge tag of the ecco-branch
2692    
2693    checkpoint51s_post
2694    o cleanup: removed various obsolete #define-s
2695    o pkg/grdchk
2696      - renamed 'ph-grd 3' to 'grad-res'
2697      - merged from ecco-branch
2698        (remaining bug fixes for obcs gradient checks)
2699      - additional high-precision output for testreport
2700        (grep for 'precision_grdchk_result')
2701    
2702    checkpoint51r_post
2703    o cleaned up or removed CPP_OPTIONS.h files
2704    o updated results for some of the tests to reflect the new
2705      optfiles (-ieee: -O0 instead of -O3)
2706    
2707    checkpoint51q_post
2708    o cd_code:
2709      - moved cd_scheme.F -> cd_code_scheme.F
2710      - separate read_checkpoint from cd_code_ini_vars.F
2711      - separated cd_code part from write_checkpoint
2712      - updated AD_SOURCE, generated .flow
2713      - added CD_CODE_VARS.h to the_main_loop
2714      - Moving cd_code specific store dir.s to pkg/cd_code
2715    o ctrl package totally restructured
2716      - pack/unpack now optional and decoupled from
2717        xx_/adxx_ I/O
2718      - ctrl_pack/unpack cleaned
2719        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2720      - confined inclusion of AD_CONFIG.h to where necessary.
2721    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2722    
2723    checkpoint51p_post
2724    o create initial cd_code package
2725      - WARNING: the initialization of fields within packages
2726        is broken because INI_FIELDS (where READ_CHECKPOINT is
2727        called) is called *before* PACKAGES_INIT_VARIABLES.
2728        This seems to be backwards since
2729        1) its important to initially zero the entire field including
2730           the "halo" region
2731        2) zeroing needs to be done *before* reading pickup info
2732           and the pickup call might or might not happen in any
2733           particular run
2734      - this needs an overhaul for R2
2735    o cleanup verification/*/code/GMREDI_OPTIONS.h
2736    o cleanup testreport
2737    
2738    checkpoint51o_post
2739    o bringing AD-related verif's up to date with genmake2
2740      - carbon/
2741      - global_ocean.90x40x15/
2742      - hs.94.1x64x5/
2743      - (front_relax/ )
2744    o (more) consistent directory structure for AD-related verif.'s
2745    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2746    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2747    o bug fix in find_alpha.F for MDJWF:
2748      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2749        change rho -> rho-rhoConst
2750      - replace call find_rho to find_rhonum
2751    o initialisation of rFlx extended to full array (required by TAF)
2752      and shifted to thermodynamics
2753    o removed PTRACERS.h in ptracers routine
2754    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2755    o Correcting initialisations for fVerU, fVerV.
2756    o helping TAF to recognize dependency on kUp for
2757      fVerU, fVerV
2758    o Replacing delZ by delR in pkg/ctrl/
2759    checkpoint51o_pre
2760    
2761    o undid all of cp51 pending some cleanups and discussion
2762    o added the [#include "AD_CONFIG.h"] statement to all files that need
2763       it for adjoint/tl #defines
2764     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2765     o removed tools/genmake since it no longer works
2766    
2767    checkpoint51n_post
2768    o modifications to make FREEZE flux visible to pkg/kpp
2769      - moved surfaceTendencyTice from pkg/seaice to main code
2770      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2771      - subroutine FREEZE now limits only surface temperature
2772        (this means new output.txt for global_ocean.90x40x15,
2773         global_ocean.cs32x15, and global_with_exf)
2774    o added surface flux output variables to TIMEAVE_STATVARS
2775    
2776    checkpoint51n_pre
2777    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2778    o added [#include "AD_CONFIG.h"] to all files that use the following
2779      defines:
2780      - ALLOW_ADJOINT_RUN
2781      - ALLOW_TANGENTLINEAR_RUN
2782      - ALLOW_ECCO_OPTIMIZATION
2783    
2784    checkpoint51m_post
2785    o incorporating changes to get TAMC/TAF working in genmake2
2786      - added new TAMC/TAF targets to the Makefile
2787      - various cleanups related to package handling
2788      - these changes should have no impact on the forward model
2789    
2790    checkpoint51l_post
2791    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2792     - faster algorithm for cal_addtime.F
2793     - higher precision arithmetic, where needed
2794     - pkg/exf *startdate variables changed from calendar date to
2795       model integration time
2796    
2797    checkpoint51l_pre
2798    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2799    o enable to apply restoring on S & T only in a latitude band.
2800    o update output (external_forcing_surf modif. change truncation errors)
2801       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2802    
2803    checkpoint51k_post
2804    o change default to: useNHMTerms=.FALSE.
2805     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2806       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2807     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2808        exp1, ideal_2D_oce
2809     - change data file of oceanic exp (leave the results unchanged for now)
2810       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2811    o set gravitySign automatically according to the vertical coordinate used
2812      (and change sign: back to "logical" value: +1 when R increases downward)
2813    o added an include barrier to the default CPP_OPTIONS.h and
2814      removed the #include "PACKAGES_CONFIG.h" from it
2815    o fix a bug in mom_fluxform (from chk51j_post)
2816    
2817    checkpoint51j_post
2818    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2819    o adjusted some flow directives (dynamics, thermodynamics)
2820    o added cubed-sphere case to test cost function
2821    o heckpoint_lev?_directives.h now include
2822      pkg-specific directives, whenever those are enabled.
2823    o Moving pkg-specific flow directives to corresponding pkg
2824      Moving pkg-specific differentiation list to corresponding pkg
2825      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2826      ---> conventions are
2827           - pkg_ad.flow
2828           - pkg_ad_diff.list
2829           - pkg_ad_check_lev?_dir.h
2830    
2831    checkpoint51i_post
2832    o merge of the branch-genmake2
2833      - knowingly breaks the older genmake
2834      - automatic generation of all ALLOW_${PKG_NAME} defines
2835      - new testreport supersedes older testscript
2836    o large number of package inclusion and header cleanups
2837    checkpoint51i_pre
2838    
2839    o new output for adjoin of global ocean vector invariant
2840    o fix for checkpoint of thermodynamic seaice and bulk_force
2841    o Steph gchem various cleanups
2842    
2843    checkpoint 51h_pre
2844    o fixed some single quotes
2845    o modify gchem pkg to be more versatile
2846    o modifications to clean up dic pkg
2847    o add pkg/cfc
2848    
2849    checkpoint51g_post
2850    o provide links for ARPACK and ADM*TLM
2851    o start removing verification/vero/
2852    o update AD-related stuff
2853      (in particular some IF-statements in model/src/ routines)
2854    o adding to verification/global_ocean.90x40x15/ adjoint of
2855      vector invariant setup
2856    
2857    checkpoint51f_post
2858    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2859    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2860      of tracer Green's fucntions for ocean inversion project.
2861    
2862    checkpoint51f_pre
2863    o Added on-the-fly spatial interpolation capability
2864        "USE_EXF_INTERPOLATION" to pkg/exf.
2865      - This is a temporary Cartesian-grid hack until
2866        the super-duper ESMF coupler becomes available.
2867      - See verification/global_with_exf/README for usage example.
2868      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2869        flags and modified pkg/seaice accordingly.
2870    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2871        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2872        non-local transport term.
2873    
2874    checkpoint51e_post
2875    o pkg/mom_vecinv:
2876      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2877      - add time-ave diagnostic of vorticity advection.
2878    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2879    o atmospheric geopotential: - include water vapor effect;
2880                                - use p^kappa in p* scaling.
2881    o land pkg: read initial state from files.
2882    o AIM : add stratospheric drag in the upper level
2883    
2884    checkpoint51d_post
2885    o change function ILNBLNK (=> last non-blank char.) to return zero
2886      (instead of the string length) when the string. char is empty
2887    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2888    o modif's to restore TAMC compatibility
2889      - avoid "_d" constructs in PARAMETER declarations
2890      - avoid interrupting lines by comment lines
2891    o Use cluster local disks for purely local I/O
2892      vs. globally visible disks needed for ctrl stuff
2893      (merged from ecco-branch)
2894      - new active_file_loc... and mdsio_..._loc routines
2895      - affected packages: autodiff, ctrl, grdchk, mdsio
2896    
2897    checkpoint51c_post
2898    o introducing integer flag debugLevel
2899      - debLevZero: suppress all output
2900      - debLevA: standard
2901      - debLevB: equivalent to current debugMode=.TRUE.
2902    o introducing pathname variable mdsioLocalDir for mdsio
2903      that can be specified at runtime
2904      (relevant for cluster I/O to local disk)
2905    `
2906    >>>checkpoint51b_post
2907    adjoint of ptracers
2908    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2909    o extended state in checkpoint_lev?, etc.
2910    o alternative ctrl/cost with tr1 or ptracer
2911    o new comlev1_bibj_ptracers
2912    o new ptracers.flow
2913    o made ptracers_forcing same as external_forcing_s
2914    o added verification for adjoint with ptracers
2915      - adm. grdchk fail so far
2916      - tlm. grdchk OK
2917      - checked tapelev/comlev recomputations: OK
2918    <<<checkpoint51b_pre
2919    
2920    checkpoint51a_post
2921    o added code for biogeochemistry package
2922      - new pkgs: dic, gchem
2923      - new subroutine in ptracers
2924    o modify code for biogeo packages
2925      - in model/src and pkg/ptracers
2926    
2927    checkpoint51
2928    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2929      - autodiff, ctrl, exf, grdchk, seaice
2930      kept separate packages
2931      - cost, ecco, obcs
2932    o updating verification/internal_wave, verification/lab_sea
2933      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2934    
2935    checkpoint50i_post
2936    o Preparing next differentiable checkpoint and sync
2937      of MAIN vs. ecco-branch
2938      - 1st step: this one is differentiable
2939      - 2nd step: next(! not this) checkpoint will have updated packages
2940                  from ecco-branch)
2941    
2942    checkpoint50h_post
2943    o new package "land": provide surface BC for AIM.
2944    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2945    o AIM: use true log-P extrapolation for near surface temp (= as in
2946        F.Molteni paper) ; update aim.5l_cs output.
2947    o New variable in PARM03 for more flexible pickups
2948    o somewhat cleaned package initialisation sequence for
2949      ctrl/ cost/ ecco/ in packages_... routines
2950    
2951    checkpoint50g_post
2952    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2953      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2954      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2955        made the default because of faster convergence than ADI
2956    
2957    checkpoint50f_post
2958    o exf totally restructured
2959      - replaced all exf_set_ routines by one generic exf_set_gen.F
2960        and made sure it's still differentiable
2961      - split exf_getffields.F into new exf_bulkformulae.F
2962      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2963      - updated adjoint/makefile and relevant verif. accordingly
2964    
2965    checkpoint50f_pre
2966     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2967          + change Evap over land. (update aim.5l_cs output)
2968     o added missing .cvsignores and made uniform across expts
2969     o changed configuration of tidal_basin_2d expt
2970     o added pkg/debug functions for tracing code in fatal crashes
2971     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2972     o new fn in pkg/monitor to stop model if solution grows too big
2973     o removed lots of single quotes from comments
2974    
2975    checkpoint50e_post
2976    o make KPP work with PTRACERS
2977     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2978       nearly a copy of kpp_transport_s
2979     - there is no analogue to SurfaceTendencyS, so I have to use
2980       gPtr(of the surface layer) instead
2981    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2982    checkpoint50e_pre
2983    
2984    checkpoint50d_post
2985    o change kpp output from multiple-record state files to single-record state
2986      files analogous to write_state.F
2987    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2988      analogous to the cg2d-related output.
2989    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2990      so that writing to internal file fn (with length 512) fails.
2991    checkpoint50d_pre
2992    
2993    checkpoint50c_post
2994    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2995    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2996    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2997    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2998    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2999    
3000    checkpoint50c_pre
3001    Merging from release1_p13:
3002    o bug fix for pkg/seaice dynamic solver
3003    o Added SEAICE_initialHEFF to pkg/seaice
3004    
3005    checkpoint50b_post
3006    o store u*,v* in gU,V instead of in guNm1,gvNm1
3007    o in order to put the momForcing out of the Adams-Bashforth:
3008      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
3009      to timestep.F
3010    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
3011    o re-generate output for highly sensitive test-exp:
3012       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
3013    
3014    checkpoint50b_pre
3015    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
3016    o corrected CPP option mismatch in exf_Bulk... functions for case
3017      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
3018    
3019    checkpoint50a_post
3020    o Bug fix for merging between c50 and KPP.
3021      ikey was passed from thermodynamics to kpp_calc via
3022      common block rather than being recomputed in kpp_calc,
3023      in contradiction with new key itdkey.
3024      New key ikppkey created, and tamc.h headers updated.
3025    
3026    checkpoint50
3027    - 2nd step of merge with ecco-branch:
3028      merge changes in ecco-branch back into main trunk
3029    - bug fix in find_alpha
3030    - more storing in gmredi_calc_tensor.F, kpp_routines.F
3031    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
3032    - merged some sliced AD support routines
3033    
3034    checkpoint49
3035    merged from ecco-branch:
3036    o exf:
3037      - Enable initialisation of forcing fields to constant
3038        (runtime) values.
3039      - in exf_getffields.F
3040        Reduce i-/j-loop to interior domain, discarding overlaps.
3041        That also fixes wrong TAF-key computations for key_1, key_2
3042        with bulf formulae.
3043      - exf_init.F modify #ifdef for exf_init_evap
3044      - exf_getffieldrec.F, ctrl_getrec.F
3045        The following INT-usages are not safe:
3046          fldsecs  = int(fldsecs/fldperiod)*fldperiod
3047          fldcount = int(fldsecs/fldperiod) + 1
3048        and were modified.
3049    o autodiff: checkpoint_lev...
3050      - updated storing for bulk formulae (some arrays were missing)
3051      - added state for seaice package
3052      - synchronized with main branch
3053    o DIVA:
3054      Modif.s in
3055      - the_main_loop.F
3056      - the_model_main.F
3057      and added cost_final_restore.F cost_final_store.F
3058      o With these changes, it is possible to fully separate
3059        the first forward run to compute the cost function (mdthe_main_loop)
3060        and adjoint runs over individual DIVA intervals (adthe_main_loop)
3061        into separate model executions.
3062        This enables better tuning of DIVA to given queue sizes.
3063      o Loss of cost function value in consecutive DIVA runs is
3064        fixed by storing to 'costfinal' file.
3065      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
3066        beginning/end of adjoint integration is accounted for.
3067      The current changes apply to TAF-1.4.26.
3068      TAF has one remaining bug, requiring one manual change
3069      (see MITgcm manual).
3070    o cal: synchronized between MAIN and ecco-branch
3071    
3072    checkpoint48i_post
3073    o Changes to restore differentiability of code w.r.t. previous tag
3074      (mostly adding new routines to make list and replacing
3075      pressure by totPhiHyd).
3076    o Updated and merged grdchk package
3077      - has both ADM and TLM checks
3078      - works for single- and multi-proc.
3079      - output cleaned
3080      - worked successfully for parallel DIVA
3081    o genmake:
3082      - Adding -platform=SP4
3083      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
3084    o Modif. for DIVA:
3085      ctrl_unpack should not be called in intermediate DIVA interval.
3086      (similar thing would apply for active files such as
3087      tbar, sbar, psbar, which should not be reinitialised;
3088      only relevant for ecco-branch)
3089    
3090    checkpoint48h_post
3091    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
3092    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
3093    o Added SEAICE_initialHEFF to pkg/seaice
3094    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
3095    
3096    checkpoint48g_post
3097    --- EOS:
3098    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
3099      store total Potential in totPhyHyd for diagnostics & EOS.
3100    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
3101    --- Pressure/geopotential gradient:
3102    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
3103    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
3104      ( changes results of global_ocean_pressure )
3105    o NLFS + z-coord.: add eta*Rho' contribution.
3106    o accurate phiHyd when using interface-W at the middle between 2 centers
3107     ( changes results of ideal_2D_oce )
3108    o includes r* 2nd term in potential gradient.
3109    
3110    checkpoint48f_post
3111    Merging from release1_p12:
3112    o Modifications for using pkg/exf with pkg/seaice
3113      - improved description of the various forcing configurations
3114      - added basic radiation bulk formulae to pkg/exf
3115      - units/sign fix for evap computation in exf_getffields.F
3116      - updated verification/global_with_exf/results/output.txt
3117    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
3118      (SBO) core products, including oceanic mass, center-of-mass,
3119      angular, and bottom pressure (see pkg/sbo/README.sbo).
3120    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
3121      to avoid negative values in shallow regions.
3122      - updated verification/natl_box/results/output.txt
3123      - updated verification/lab_sea/results/output.txt
3124    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
3125    o Added useSingleCpuIO option (see PARAMS.h).
3126    o Updated useSingleCpuIO option in mdsio_writefield.F to
3127      work with multi-field files, e.g., for single-file pickup.
3128    o pkg/seaice:
3129      - bug fix in growth.F: QNET for no shortwave case
3130      - added HeffFile for specifying initial sea-ice thickness
3131      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
3132    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
3133      kpp_transport_t.F, forward_step.F, and the_main_loop.F
3134    o pkg/seaice:
3135      - adjoint-friendly modifications
3136      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
3137    
3138    checkpoint48e_post
3139    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
3140    o dynamics: change definition of computational domain & adapt mom_fluxform
3141      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
3142    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
3143        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
3144        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
3145        global_ocean.90x40x15 global_with_exf global_ocean_pressure
3146        inverted_barometer solid-body.cs-32x32x1
3147      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
3148    
3149    checkpoint48d_post
3150    o in preparation for r*:
3151     a) use pre-computed gradient of hydrostatic potential:
3152        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
3153     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
3154        => affects results of glob_oce_pressure (different truncation error)  
3155      update output.txt of ideal_2D_oce & global_ocean_pressure
3156    
3157    checkpoint48d_pre
3158    o in preparation for r*:
3159      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
3160      pass the 2 comp. of the grad. as arguments to momentum S/R.
3161      but for the moment, only used if it does not change the results.
3162    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
3163    
3164    checkpoint48c_post
3165    Modifications in treatment of initial flux forcing controls
3166    to avoid extra storing of flux fields.
3167    
3168    checkpoint48c_pre
3169    o Added tidal_basin_2d experiment (currently 1D!)
3170    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
3171    
3172    checkpoint48b_post
3173    o r* coordinate added in #ifdef NONLIN_FRSURF block.
3174     (modification to pressure gradient not yet implemented)
3175    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
3176      (for U & V) that are used for vertical advection of momentum.
3177    
3178    checkpoint48a_post
3179    o In preparation for r*, use temp. array to compute vertical transport
3180       in flux-form momentum pkg. => change results of few test-exp.
3181      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
3182                        lab_sea, natl_box & plume_on_slope
3183    
3184    checkpoint48
3185    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
3186    
3187    checkpoint47j_post
3188    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
3189    o moved adexch from forward_step to addummy_in_stepping
3190    o added exch in ctrl_map_...
3191    o aveFreq.=0. at end of cost_final to avoid overwrite in
3192      reverse checkpointing loop
3193    o Yet more changes in gmredi:
3194      * adgmredi_calc_tensor
3195        avoiding all recomputation of gmredi_slope_limit
3196      * adgmredi_x/y/rtransport
3197        added flag for excessive storing to avoid recomp. of
3198        u/v/rtans, dTdx/y/z
3199        -> this is not really necessary and very memory-consuming
3200      * adgmredi_slope_psi:
3201        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
3202      * gmredi_slope_limit
3203        re-activated full calculation of taperfct for case 'ac02'
3204    o updating verification/ adjoints of carbon, global_ocean.90x40x15
3205    
3206    checkpoint47i_post
3207    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
3208    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
3209      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
3210    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
3211    o gmredi: fix few bugs.
3212    
3213    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
3214    This will be a good checkpoint to plug into the ecco-branch.
3215    o few modif.'s to get latest version adjointed
3216      (mainly kick out code in ini_linear_phisurf)
3217    o modif's to run adjoint with exactConserv
3218    o case GM_BOLUS_ADVEC should be cleaned
3219      S/R gmredi_slope_psi should be cleaned
3220    o verification/carbon now has exactConserv=.TRUE.
3221    
3222    checkpoint47g_post
3223    o time-average AIM output: becomes independent from statvars time-average
3224      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
3225    o After TAF bug fix:
3226      Tested adjoint of gmredi package.
3227      Tests were done with checkpoint47 rather than with latest
3228      checkpoint47f_post since the latter is broken for the adjoint
3229      verification/carbon/ contains both ADM and TLM gradient checks.
3230    Here they are, before they get changed/lost/stolen.
3231    Mostly modif.'s to fix numerical sensitivities.
3232    Gradient checks OK for
3233    - GM_taper_scheme:
3234      * clipping
3235      * ac02
3236      * linear
3237      * glw91
3238      * dm95
3239      * ldd97
3240    - GMREDI_OPTIONS:
3241      * GM_VISBECK_VARIABLE_K
3242      * GM_NON_UNITY_DIAGONAL
3243      * GM_EXTRA_DIAGONAL
3244      * GM_BOLUS_ADVEC
3245    in conjunction with data.gmredi parameters to be checked in
3246    in a few minutes under verification/carbon/code/
3247    
3248    checkpoint47f_post
3249    Merging from release1_p10:
3250    o modifications for using pkg/exf with pkg/seaice
3251      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
3252        and SEAICE_EXTERNAL_FLUXES
3253      - pkg/exf CPP options EXF_READ_EVAP and
3254        EXF_NO_BULK_COMPUTATIONS
3255      - usage examples are Experiments 8 and 9 in
3256        verification/lab_sea/README
3257      - verification/lab_sea default experiment now uses
3258        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
3259    
3260    checkpoint47e_post
3261    o created a tag prior to creating a branch
3262    
3263    checkpoint47d_post
3264    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
3265      at the bottom boundary had an erroneous half slip boundary condition
3266    o added bottom drag and no slip boundary condition capabilities to
3267      oceanic pressure coordinates code
3268    o added new verification experiment global_ocean_pressure, this experiment is
3269      also described in the tutorial section of the manual
3270    checkpoint47d_pre
3271    
3272    checkpoint47c_post
3273    o Added a verification experiment for a global cubed-sphere ocean run
3274      -  verification/global_ocean.cubed32x32x30
3275      -  uses pkg/therm_seaice and pkg/bulk_forcing
3276    
3277    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
3278    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
3279      when using P-coordinate; only implemented for atmospheric config.
3280    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
3281      NOTES: requires option NONLIN_FRSURF to be "#define".
3282    o update advect_xz/results/output.txt (left from checkpoint44g_post)
3283    
3284    checkpoint47b_post
3285    Merging from release1_p9:
3286    o pkg/seaice
3287      - removed GOTO's and added taf directives
3288      - double precision constants to reduce the g77 (Linux)
3289        to F77 (SGI) differences reported in release1_p8
3290    o tools/genmake
3291      - added SGI options
3292    o verification/testscript
3293      - updated to that of checkpoint47a_post
3294    o verification/global_ocean.90x40x15/input/eedata
3295      - modified for SGI f77 compatibility
3296    o verification/lab_sea
3297      - added description of sea-ice model
3298      - added missing matlab routines
3299      - added test of thermodynamics parallelization
3300    
3301    checkpoint47a_post
3302    o new pkg: aim_v23
3303     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
3304       for now, keep the same surface forcing as before.
3305     - Part-Cell implemented into AIM; check that Heat & Water are conserved
3306     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
3307     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
3308    o add diagnostic of surface correction term in monitor output
3309    
3310    o bulk_force and therm_seaice
3311    - Two packages:  bulk_force (Bulk forcing)
3312      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
3313    - Earlier integration from Stephaine Dutkiewicz
3314      and Patrick Heimbach.
3315    - Two ifdef statements for compile time,
3316       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
3317    
3318    checkpoint47
3319    differentiable version of checkpoint46n_post
3320    o bug fix in quasihydrostaticterms
3321    o * "clean" adjoint code (in terms of extensive recomputations)
3322        can now be obtained for all GMREDI options (i.e. for
3323        - GM_VISBECK_VARIABLE_K
3324        - GM_NON_UNITY_DIAGONAL
3325        - GM_EXTRA_DIAGONAL
3326        - GM_BOLUS_ADVEC )
3327      * However, wrong gradient check problem remains unsolved.
3328      * New CPP options have been introduced for different
3329        tapering schemes
3330    o external_fields_load now part of differentiation list
3331    o pressure needs multiple storing;
3332      would be nice to have store_pressure at beginning or
3333      end of forward_step, e.g. by having phiHyd global (5-dim.)
3334      (NB: pressure is needed for certain cases in find_rho,
3335      which is also invoked through convective_adjustment).
3336    o recomputations in find_rho for cases
3337     'JMD95'/'UNESCO' or 'MDJWF' are OK.
3338    o #define ATMOSPHERIC_LOADING should be differentiable
3339    o ini_forcing shifted to begining of initialise_varia
3340    o Incorporating QNVS line search routines into MITgcm
3341      (this is separate code, and therefore not under pkg)
3342      lsopt/, optim/
3343    o Updated verification/carbon/
3344      - #define GM_VISBECK_VARIABLE_K
3345      - GM_taper_scheme    = 'ldd97'    
3346    
3347    checkpoint46n_post
3348    Merging from release1_p8:
3349    o verification/natl_box:
3350      updating new external_fields_load routine
3351    o New package: pkg/seaice
3352      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
3353      The sea-ice code is based on Hibler (1979-1980).
3354      Two sea-ice dynamic solvers, ADI and LSR, are included.
3355      In addition to computing prognostic sea-ice variables and diagnosing
3356      the forcing/external data fields that drive the ocean model,
3357      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
3358      The implied surface heat flux is then stored in variable
3359      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
3360      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
3361      non-local transport term.  Because this call precedes model
3362      thermodynamics, temperature under sea-ice may not be "exactly" at
3363      the freezing point by the time theta is dumped or time-averaged.
3364      N.B.: fairly large differences in accuracy occur across
3365            different platforms/compilers; comparison between
3366            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
3367            generated output gives:
3368       T           S           U           V
3369      C D M    c        m  s        m  s        m  s        m  s
3370      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
3371      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
3372      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
3373    
3374      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
3375    o GAD:
3376      - generated new common blocks to account for call of
3377        same gad routines with differing traceridentities
3378        (needed to modify tracerIdentity indices in GAD.h)
3379      - generated separate common blocks for case useCubedSphereExchange
3380        (Department of Futurology)
3381      - parameter lists to gmredi_?transport: added tracerIdentity
3382      - added new key indices to tamc.h
3383    o external_fields_load:
3384      - added this routine to TAF list
3385      - needed to make some common blocks global and additional storing
3386        along the same lines as exf package (checkpoint_lev?_directives.h)
3387    o exf:
3388      updated external forcing package
3389      - bug fixes carried over from ecco-branch
3390        (missing OBCS_OPTIONS.h in two routines)
3391      - enable easy to use "no forcing".
3392      - added exf I/O for atmospheric loading
3393      - added exf I/O for runoff data
3394      - transfered scaling between exf <-> MITgcm to exf namelist
3395    o Adding new verification experiment global_with_exf.
3396      This verification experiment is almost identical to the
3397      global_ocean.90x40x15 experiment, except that it uses
3398      the exf (and cal) package instead of the
3399      external_fields_load routine (cf README file).
3400    
3401    checkpoint46m_post
3402    o modified testscript to return -- when there are no lines of "%MON" output
3403    o added new flag "quasiHydrostatic" for QH mode
3404      and new routine quasihydrostaticterms()
3405    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
3406      New routine: mom_u_coriolis_nh()
3407    o fixed sign of non-hydrostatic metric terms in u and v equations.
3408      Depend on correct sign of gravitySign.
3409    o added work.pc* to .cvsignore in aim directories using ifc
3410    o introduced flag for controllin non-hydrostatic metric terms
3411    o removed gravitySign from PARM04
3412    o switched to g77/ifc from pgf77 in aim experiments
3413    
3414    checkpoint46l_post
3415    o made convective adjustment work with pressure coordinates:
3416     - changed the direction of k-loop in convective_adjustment.F for the
3417       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
3418     - adjusted the reference pressure k-index in convective_adjustment.F
3419     - adjusted the convection condition in convect.F (in analogy to
3420       calc_ivdc.F)
3421     - convective_adjustment no longer computes anything on the halos
3422     - removed the warnings about negative salinity from find_rho.F and
3423       find_alpha.F; instead the new routine look_for_neg_salinity, called
3424       at the beginning of find_rho, find_alpha, and find_beta, does a
3425       check of the entire slice, if CPP-option
3426       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
3427    checkpoint46l_pre
3428    
3429    checkpoint46k_post
3430    o fixed the verification/global_ocean.90x40x15 experiment:
3431     - new bathymetry (the world according to A., JMC, and M.)
3432     - new initial fields and forcing fields (*.bin files)
3433     - new POLY3.COEFFS (for the next release one should switch to a full
3434       equation of state: JMD95P or MDJWF)
3435     - fixed several errors and redundancies in the data file
3436     - experiment uses looped cells
3437     - added matlab directory with diagnostic scripts for plotting of output
3438    
3439    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
3440     - read AIM physics parameters from a file (data.aimphys)
3441     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
3442    
3443    checkpoint46j_post
3444    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
3445    o move wVel computation at the end of the time step, in S/R integr_continuity
3446    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
3447    o update timeave pkg for wVel diagnostic.
3448    checkpoint46j_pre
3449    
3450    checkpoint46i_post
3451    o Clean up AIM package (and keep the results unchanged):
3452      include CPP_OPTION and use IMPLICT NONE in all routines ;
3453      declare all the variables _RL ; use _d 0 for all numerical constants.
3454      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
3455    
3456    checkpoint46h_post
3457    o cleaned up the use of rhoNil and rhoConst.
3458      - rhoNil should only appear in the LINEAR equation of state, everywhere
3459        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
3460        and the dynamical equations are all divided by rhoConst
3461    o introduced new parameter rhoConstFresh, a reference density of fresh
3462      water, to remove the fresh water flux's dependence on rhoNil. The default
3463      value is 999.8 kg/m^3
3464    o cleanup up external_forcing.F and external_forcing_surf.F
3465      - can now be used by both OCEANIC and OCEANICP
3466    checkpoint46h_pre
3467    
3468     Added code to convert surface volume flux (fresh water) into
3469     a mass flux when using P coordinates in the ocean (OCEANICP).
3470     Note: It assumes you have set rho0=rhoConst=density of fresh water.
3471    
3472    checkpoint46g_post
3473    o Include a new diagnostic variable phiHydLow for the ocean model
3474      - in z-coordinates, it is the bottom pressure anomaly
3475      - in p-coordinates, it is the sea surface elevation
3476      - in both cases, these variable have global drift, reflecting the mass
3477        drift in z-coordinates and the volume drift in p-coordinates
3478      - included time averaging for phiHydLow, be aware of the drift!
3479    o depth-dependent computation of Bo_surf for pressure coordinates
3480      in the ocean (buoyancyRelation='OCEANICP')
3481      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
3482        Theta, Salinity, and Pressure in the parameter list. This routine is
3483        presently contained in find_rho.F. This routine does not give the
3484        correct density for 'POLY3', which would be a z-dependent reference
3485        density.
3486    o cleaned up find_rho
3487      - removed obsolete 'eqn' from the parameter list.
3488    o added two new verification experiments: gop and goz
3489      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
3490    checkpoint46g_pre
3491    
3492    checkpoint46f_post
3493    o Enable tangent linear (forward mode) gradient checks:
3494      - extended active file handling to g_... files
3495      - added TANGENT_SIMULATION to theSimulationMode
3496      - extended grdchk package accordingly
3497    o added tangent linear setup in verification/carbon/code_ftl
3498    o added adjoint setup in verification/front_relax/code_ad
3499    
3500    checkpoint46e_post
3501    o Added new equation of state -> MDJWF
3502      - EOS of McDougall et al., 2002, JAOT, submitted
3503      - caveat: the equation of state is only valid for a smaller (more
3504        realistic?) range of values than JMD95P/Z and UNESCO
3505      - added masks to the calculation of pressure in store_pressure
3506      - added more check values for density in check_eos (ini_eos.F), some of
3507        the old check values are out of the range of the MDJWF-eos, so don't
3508        expect perfect matches for those
3509    checkpoint46e_pre
3510    
3511    checkpoint46d_post
3512    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
3513      'OCEANICP', also initialised field pressure correctly in ini_eos in the
3514      case of pressure coordinates. eosType='JMD95Z' in
3515      combination with buoyancyRelation='OCEANICP' now causes an error.
3516    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3517      in find_alpha/beta.
3518    checkpoint46d_pre
3519    
3520    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3521      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
3522    
3523    checkpoint46c_post
3524    o Changes necessary for ocean in p-coordinates
3525     -  Added new buoyancy relation = 'OCEANICP'
3526     -  Added new parameters = gravitySign (this used to be contained inside
3527        the factor dRdZ which I added when we first switched to R coordinates).
3528     X GM/Redi is not compatible (yet)
3529     X bottom drag and no-slip need to be debugged.
3530    checkpoint46c_pre
3531    
3532    checkpoint46b_post
3533    o Added new equation of state -> JMD95Z and JMD95P
3534      - EOS of Jackett and McDougall, 1995, JAOT
3535      - moved all EOS parameters into EOS.h
3536      - new routines ini_eos.F, store_pressure.F
3537    o Added UNESCO EOS, but not recommended because it requires
3538      in-situ temperature (see JMD95)
3539    o Modified formatting for knudsen2.f in utils/knudsen2 and added
3540      unesco.f to be used with POLY3
3541    checkpoint46b_pre
3542    
3543    checkpoint46a_post
3544    o Added (atmospheric) pressure loading
3545      - new field in FFIELDS.h, etc...
3546      - new cpp flag ATMOSPHERIC_LOADING
3547    o Changed hFacC to _hFacC in calc_phi_hyd.F
3548    o Added SHORTWAVE_HEATING to some files for consistency
3549    checkpoint46a_pre
3550    
3551    checkpoint46
3552    further merges from release1_p5
3553    o new ctrl package
3554      - adopted from ECCO environment to enable optimization
3555      - added Eliassen Palm fluxes to controls
3556    o added Eliassen Palm flux controls to gradient check package
3557    o cost package
3558      - Compatible with new ctrl package
3559      - added Eliassen Palm cost hooks
3560      - modif's of existing cost functions
3561    o Adjoint-related bug fixes in kpp:
3562      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
3563      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
3564    o autodiff package
3565      - flow directives:
3566        + new for S/R do_the_model_io
3567        + enhanced for S/R checkpoint
3568        + new gmredi.flow
3569      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
3570        disable adcommon.h/g_common.h by default.
3571      - fixed problem for adjoint of global_max
3572    o modified verification/carbon/
3573    o New setup for adjoint of global_ocean
3574    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
3575    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
3576    o incorporated hooks for sponge layer code (external_forcing.F)
3577    
3578    checkpoint45d_post
3579    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
3580    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
3581      (affects plume_on_slope "cg2d" output)
3582    o add new parameter deltaTfreesurf for free-surface time stepping
3583    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
3584    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
3585    o change phiMin in exp1 (to agree with documentation)
3586    o add new flags:
3587     - T,S forcing inside/outside Adams-Bashforth
3588     - turn off temp,salt advection and/or forcing
3589     - for each tracer, define internal flag for multiDimAdvection & A-B
3590    o monitor: change definition of KE to check conservation of Energy
3591    
3592    checkpoint45c_post
3593    o Removed f90 comments ("!")
3594    o Modified initialisations to enable exf package for MITgcm
3595      (without invoking ECCO_PACKAGE).
3596    o modifications to gradient check package (Martin Losch)
3597      - enable centered differences
3598      - modified format of standard output
3599    
3600    checkpoint45b_post
3601    o cleaned exchange calls in cg2d
3602    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
3603    o included CPP option SINGLE_LAYER_MODE in thermodynamics
3604      to configure barotropic setup (Martin Losch)
3605    o moved some initialisations within bi,bj loop in dynamics
3606      (TAF flow dependency)
3607    o in initialise_varia, moved call packages_init_variables
3608      before convective_adjustment_init
3609      (corresponding adjustment of TAF tape initialisation).
3610    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
3611    
3612    checkpoint45a_post
3613    o compute Rho over the whole domain (extend iMin,jMin indices)
3614    o specific exchange for X-slice domain (case Ny=1)
3615    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
3616    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
3617    
3618    checkpoint44h_post = checkpoint45
3619    o Fix to restore differentiability:
3620      place at which packages_init_variables is called in
3621      initialise_varia is crucial for reverse control flow.
3622    o modifications in GMRedi to enable stable adjoint
3623      (corresponding modif's in thermodynamics, dynamics)
3624    o added missing hook for sponge layer code in external_forcing
3625    o modified test cost functions
3626    o storing in gad_advection (plus removal of write(0,*)!
3627    o missing headers TR1.h added in convective_adjustment routines
3628    o errorMessageUnit set non-equal zero in eeboot
3629      (conflict on some platforms, e.g. IBM SP3)
3630    o modified carbon verif.
3631    
3632    checkpoint44h_pre
3633    o vertical grid option: allow to put the Interface at the middle between
3634      2 cell-centers ; replace delZ in pkg/kpp by drF.
3635    o GM Advective form: Tracers are advected using the residual transport (=
3636      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
3637    
3638    checkpoint44g_post
3639    o fix surface correction term in multiDimAdvection (affects plume_on_slope
3640      results) ; ifdef missing in thermodynamics.F
3641    
3642    checkpoint44f_pre,checkpoint44f_post
3643    o added PTRACERS package
3644      This allows an arbitrary number of passive tracers to be integrated
3645      forward simultaneously with the dynamicaly model.
3646      + Implemented so far:
3647        - basic forward algorithm (time-stepping, advection, diffusion, convection)
3648        - I/O and checkpointing
3649        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
3650      + Not implemented so far:
3651        - KPP
3652        - OBCS
3653      + No specific example supplied (yet) but global_ocean.90x40x15 has the
3654        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
3655        line in data.pkg.
3656      + This package is disabled by default since it increases storage.
3657    
3658    
3659    o testscript: added -cleanup option
3660    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
3661                 b) enable to filter 2D fields.
3662    
3663    checkpoint44e_pre,post
3664    o re-wrote convective adjustment to use pre-calculated weights
3665      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
3666      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
3667      Original calls to convect() still in place.
3668    
3669    chkpt44d_pre,post
3670    o added missing EXCLUDE_MONITOR flags
3671    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
3672      (incompatible typ in MIN/MAX expressions caused problems
3673      on IBM SP3)
3674    o in genmake added variable MAKEDEPEND
3675      plus resetting for case SunOS
3676    o added timer_stats.c routine for IBM SP3
3677    o removed variables in dynamics
3678    !!! I forgot to create tag chkpt44d_pre !!!
3679    !!! But chkpt44d_pre = chkpt44c_post    !!!
3680    
3681    o real fresh water flux implemented with non-linear free-surface.
3682    
3683    chkpt44c_pre,post
3684    o few fix (mask in shap_s2, EmPmR in external_field_load,
3685      USE_NATURAL_BCS in solve_for_P);
3686    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
3687    
3688    checkpoint44b_pre/_post
3689    o merge of relevant stuff from the ecco-branch:
3690      - genmake: removed $S64 overwrite for case SunOS
3691      - pkg/exf: update and corrections for field swapping and obcs
3692      - pkg/ecco: parameter lists for the_model_main, the_main_loop
3693                  harmonized between ECCO and MITgcm
3694      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
3695                      updated checkpointing_lev... lists for obcs
3696      - model/src: minor changes in forward_step, plot_field
3697                   added directive for divided adjoint in the_main_loop
3698      - pkg/mdsio: added mdsio_gl_slice
3699    
3700    o check parameters & config (chkpt44a_pre,post)
3701    o OBC and NonLin_FrSurf.
3702    
3703    checkpoint44
3704    o fix bug in mom_vi_del2uv
3705    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
3706    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
3707    o update AIM experiments (NCEP input files)
3708    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
3709    o added some stuff for AD
3710    
3711    checkpoint43
3712    o added two new advection tests
3713    o added global 4x4 degree ocean test
3714    o added test of H&S94 with free surface on cube
3715    o some final mods for gradient check, adjoint,...
3716    
3717    checkpoint42
3718      Fixed AD-related problems:
3719    o Store directives up-to-date with re-arranged Adams-Bashforth
3720      (mainly thermodynamics.F)
3721    o New store directives for multi-dim. advection schemes
3722      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
3723      * new common block and key passkey
3724      (mainly gad_advection.F)
3725    o Modified store directives for split of dynamics/thermodynamics
3726      for the case ALLOW_KPP
3727    o Cleaned argument list for timestep_tracer.F
3728    
3729    checkpoint41
3730    o re-formatted/added comments in prologues of key subroutines
3731      to work with protex
3732    
3733    checkpoint40
3734    o moved calc_gs, calc_gt and calc_tr1 back to model/src
3735    o added FLT (floats) package from Arne along with demo. experiment
3736    o re-arranged Adams-Bashforth scheme for tracers to allow easier
3737      implementation of forward-in-time forcing terms
3738    o more mods for non-linear free-surface including new variable
3739    o modified multi-dim method to work on cube
3740    o bug fix in KPP (from DM)
3741    
3742    checkpoint40pre9
3743    o added DST advection schemes
3744    o fix MPI bug on SGI's
3745    o modifications for non-linear free-surface
3746    o fixed conditionals for fixed flow/passive tracer only mode
3747    o added tension/strain form of stress tensor
3748    o changes to commenting of arguments for TAF/TAMC
3749    o added/updated many matlab scripts
3750    o added multi-dimensional advection method for tracers
3751      
3752    checkpoint40pre8
3753    o new package rw/
3754      Added method for dumping intermediate local arrays:
3755      mdsio_writetile - same as mdsio_writefield except works from inside
3756                        bi,bj loop
3757      mdsio_writelocal - same as mdsio_writetile except works for local
3758                         arrays
3759      write_local_r? - higher-level wrapper for mdsio_writelocal
3760      Controlled by diagFreq. Defaults to zero (ie. no dumps)
3761      Example given at end of mom_vecinv.F that dumps some local arrays.
3762    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
3763      control flux-form versus vector invariant code.
3764      Switch is runtime flag vectorInvariantMomentum (defaults to false)
3765      or genmake -DISABLE ...
3766    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
3767      (additional storing is now needed for case vecinv;
3768      currently nothing implemented to switch this storing off
3769      in case fluxform is used since no CPP flag available).
3770    
3771    checkpoint40pre7
3772    o bug fix in dynamics.F
3773      calc_viscosity called before k=1,Nr loop.
3774    o added some #ifdef's ALLOW_PASSIVE_TRACER
3775    o cleaned initialisations in ctrl_map_ini
3776      related to TAF
3777    
3778    checkpoint40pre6
3779    o split dynamics into thermodynamics & dynamics
3780    o corresponding split of calc_diffusivity into
3781      calc_diffusivity, calc_viscosity
3782      (kpp_calc_diff, kpp_calc_visc).
3783    o Added diffkr, kapgm to control variables
3784    o bug fix in gmredi_slope_limit for ldd97
3785    
3786    checkpoint40pre5
3787    o proper initialization of Adams-Bashforth time stepping
3788      + uses forward step for very first step of model (iter=0)
3789    o re-generated *all* output since almost all output is modified by this
3790      change (sorry but we've been putting this one off for about 2 years)
3791      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
3792        *not* regenerated since they are already out of date and I don't
3793        want to create the impression that they are suddenly working.
3794    o removed KAP stuff for DEC's
3795    o modified/added many .cvsignore files in */code and */input
3796    o added new expt "solid-body.cs-32x32x1"
3797      + this uses an alternative form of ini_curvilinear_grid.F which
3798        is not necessarily any better than the current one...
3799    
3800    checkpoint40pre4
3801    o added re-initialisations of utrans,vtrans,rtrans in
3802      calc_common_factors which are crucial for TAF.
3803    o extended iMin,jMin range for calc_common_factors,
3804      calc_diffusivity
3805    o added option ALLOW_PASSIVE_TRACER
3806    o a few minor updates and fixes
3807    
3808    checkpoint40pre3
3809    o created calc_gtr1.F for gad package
3810    o split the_main_loop and re-introduced forward_step
3811    o some recomputations of nIter0 for TAMC
3812    
3813  checkpoint40pre2  checkpoint40pre2
3814  o Updated to latest branch of AJA, JMC  o Updated to latest branch of AJA, JMC
3815  o Added gradient check package  o Added gradient check package

Legend:
Removed from v.1.41  
changed lines
  Added in v.1.1031

  ViewVC Help
Powered by ViewVC 1.1.22