/[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 1.1032 by jmc, Wed Oct 22 00:19:33 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 gmredi (Visbeck-variable-K):
8      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
9      - change computation of Visbeck-K where Slope > Smax :        
10        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
11        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
12    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
13      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
14    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
15    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
16      does not become too large (to avoid precision problems in implicit-diffusion
17      solver); update ideal_2D_oce output.
18    o pkg ggl90:
19      - in ggl90_cal.F: compute only one set of visc/diff, used to
20        step forward TKE/T/S/momentum
21      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
22        have Prandlt =1)
23    o gmredi (fm07):
24      - add lower limit on Transition layer thickness + lower limit on 1/lambda
25      - allow to set few more params from data.gmredi
26    o pkg ggl90:
27          - add missing sqrt(2) factor in computation of mixing length
28            scale in ggl90_calc.F
29            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
30    
31    checkpoint61d
32    o adjoint modifs
33      - adapt to new field rhoInSitu
34      - allow to revert from StoreDynVars2D, StoreDynVars3D
35        to individual fields
36        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
37    o store 3-D (in-situ) density in commom block (DYNVARS.h)
38     - save 1 rho computation.
39     - no longer modify T & S inland when using down_slope pkg.
40    o gad_som : allow to switch to SOM advection for T & S without corresponding
41      pickup files (using new S/R: MDS_CHECK4FILE).
42    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
43      (for useSingleCpuIO to work in multi-threaded)
44    o pkg/shelfice:
45     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
46       with SHELFICEtopoFile in data.shelfice
47     - move code for reading ice shelf topography and modifying hFacC into separate
48       subroutines of the shelfice package
49     - separate initialisation of "fixed" and "variable" variables
50     - kTopC is not (yet) replaced by kSurfC, although this is possible
51    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
52    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
53      and rename:
54      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
55      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
56    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
57    
58    checkpoint61c
59    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
60      to add mass source/sink of fluid in the interior (3-D generalisation
61      of oceanic real-fresh water flux).
62    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
63    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
64    o new pkg: down_slope
65      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
66      - presently, modify T & S inland (dwnslp_calc_rho.F).
67        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
68      - implementation for ocean in P-coords not tested.
69      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
70    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
71      (to facilitate conversion of oceanic pkg to p-coordinate).
72    o change FIND_RHO to FIND_RHO_2D :
73      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
74    o new pkg: cheapaml
75    
76    checkpoint61b
77    o exch2:
78      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
79      - no longer depend on the order sequence (N,S,E,W).
80      - 3rd exchange no longer needed (tested with 24 tiles).
81      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
82      - exch_UV_A-grid readily available (but not yet tested).
83      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
84      (both are no longer needed) in exch_uv: no effect in forward run; but
85       get truncation error differences with adjoint exch.
86    o exch2:
87     - change index-bounds storage (moved from target to local tile,
88       more intuitive this way) ; rename/remove some variables.
89     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
90    
91    checkpoint61a
92    o exch2/matlab-topology-generator:
93      fix bug in index bounds for N-S internal exchange (hard to tell if this
94      had any effect on the solution).
95    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
96      is exceeded
97    o testreport: modify syntax of awk, so that it works also with
98      awk, and not only with nawk and gawk
99    
100    checkpoint61
101    o autodiff
102      Change default for TAF usage by removing argument '-nonew_arg'
103      This changes TAF subroutine argument list (ordering of active var.)
104      Omission of this flag leads to incompatibility w.r.t. TAMC
105      To restore TAMC-compatibility, need following modifs:
106      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
107      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
108      Tested TAF version is 1.9.22
109      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
110    
111    checkpoint60
112    --->>> This is the last checkpoint for which generating the adjoint
113    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
114    --->>> by default.
115    --->>> Future checkpoints will ommit this flag by default.
116    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
117    o pkg/grdchk: Add gradient check to etan0 perturbations.
118    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
119    o pkg/autodiff: more flexibility in zeroadj.
120      model/src: modifying do_oceanic_phys.F accordingly.
121    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
122    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
123      special setup of gmredi for which the adjoint is stable
124      enough for parameter optimization.
125    o bridging the gap between eddy stress and GM.
126      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
127          along with a change in CPP option (now ALLOW_EDDYPSI).
128      -> when using GM w/ GM_AdvForm:
129          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
130          is applied either in the tracer Eq. or in momentum Eq.
131          depending on data.gmredi (intro. GM_InMomAsStress).
132      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
133      The key modifications are in model/src/taueddy_external_forcing.F
134      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
135    
136    checkpoint59r
137    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
138      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
139      fix option to read coriolis(@ cell-corner) from files with CS-grid.
140    o pkg/mnc: add some attributes to standard 1D-coordinate variables
141    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
142      mass points, when using mnc for output
143      - add runtime parameter (missing_value, missing_value_int) to override
144        default (which is the value of getcon('UNDEF'))
145    o pkg/mnc: prepare mnc for the actual use of missing values with the
146      diagnostics package: small fix in mnc_cw_readwrite.template and more
147      initialisation of never used fields
148      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
149      versions
150    o pkg/thsice/thsice_ini_vars.F added default initial values so that
151      thermodynamics sea ice solver does not blow up when some initial fields
152      are missing.
153    o move from external_forcing_surf.F to ini_forcing.F
154      the p-coord. hack consisting in using pLoad to set phi0surf ;
155      update output of tutorial_global_oce_in_p (affected @ truncation level).
156    o Freshen up a bit hs94.1x64x5, notably:
157      remove rotationPeriod and tRef=5*0. (adjoint only), and add
158      exactConserv=.TRUE.
159    o pkg/generic_advdiff:
160      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
161      applies to files where Temperature & Salinity 2nd Order moments are used.
162    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
163      this uses a dynamically allocated internal state data structure
164      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
165      and requires a fortran 90 compiler
166    
167    checkpoint59q
168    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
169       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
170    o Refresh tutorial_global_oce_biogeo, notably:
171      - change bathymetry (put back seamounts in ACC, use hFacs)
172      - change EOS (POLY3 --> JMD95Z)
173      - use Bryan-Lewis vertical diffusivity
174      - use multidimensional advection
175      - remove old virtual virtual in dic pkg, now done through ptracer pkg
176      - change a couple of parameters in dic pkg
177    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
178    o pkg/obcs: change default to OBCSfixTopo = .true.,
179      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
180      - replace "debugMode" with "debugLevel .GE. debLevB"
181    o implementation of TAF directives for gchem,cfc,dic
182    o remove "exp5" (replaced by tutorial_deep_convection).
183    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
184      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
185      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
186      --> changes results in exp4, seaice_obcs
187    o tutorial_deep_convection :
188      update the set-up and increase resolution and domain size ; start
189      from pseudo initial conditions = output at t=120mn in order to see
190      something happening when running testreport.
191    o pkg/seaice: add os7mp as an advection scheme
192                  add check for advection schemes
193                  add a flag for restoring T and S underneath sea ice
194    o pkg/my82: add netcdf-support and diagnostics
195    o thsice pkg:
196      - Now hsMax limits snow height by turning it into ice following
197        flooding scheme (and now conserving energy)
198      - Slight rewriting of the formula in thsice_calc_thick.F
199      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
200      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
201    
202    checkpoint59p
203    o gchem / dic / cfc :
204      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
205      - add new parameter files: "data.dic" & "data.cfc" ;
206      - various re-arrangement in initialisation & header file ;
207      - fix tutorial_global_oce_biogeo for multi-threaded test.
208    o pkg/dic: test for "pickup_dic" file when restarting ;
209      if no pickup-file, can restart with a re-initialised pH (same as it did
210      before) providing pickupStrictlyMatch is set to False.
211    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
212      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
213    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
214      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
215    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
216     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
217       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
218    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
219       scheme to use for vorticty-term ;
220     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
221       (with default selectVortScheme, return to original discretisation)
222     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
223    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
224    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
225      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
226      also fix diagnostics VISCAHW & VISCA4W.
227    
228    checkpoint59o
229    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
230    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
231      move a few statemens out the main loop into separate loops
232    o pkg/shelfice:
233      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
234        (kg/m^2/s), does not break tests, because in verification/isomip,
235        rhoConstFresh=rhoConst (by accident)
236      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
237      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
238        new file model/src/seawater.F, so that they are available for all pkgs.
239      - convert potential temperature into in-situ temperature. This changes the
240        isomip tests => update tests
241    o add a flag writePickupAtEnd (default=true) to be able to suppress
242      writing a pickup at the last timestep
243    o tools/mpack-1.6 :
244      - disable automake (not working) and autoconf (not needed).
245      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
246        also cleaner with much less compilation warnings.
247    o pkg/profiles:
248      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
249      (for "less than 32 characters name" compiler requirement)
250    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
251      conditions that have a different sampling frequency than S/T/U/V obcs
252    o pkg/diagnostics (stats-diags):
253      - fix global Min/Max in case 1 processor get only empty tiles
254    o genmake2: replace (4 times)
255         make genmake_tc_1.o >> genmake_warnings 2>&1
256      with
257         COMM="$CC $CFLAGS -c genmake_tc_1.c"
258         echo $COMM >> genmake_warnings
259         $COMM >> genmake_warnings 2>&1
260      to make genmake2 always see the value of CC as specified in the optfile.
261    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
262      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
263      - modify verification advect_cs test to test SOM-advection on CS-grid.
264    o pkg/ctrl:
265      - Rewrite of ctrl_map_ini_ecco.F,
266        introducing a generic routine (ctrl_map_ini_gen.F).
267      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
268    
269    checkpoint59n
270    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
271      number in dedicate array "hdiag":
272      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
273        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
274      - many small changes (integer format) for large number of diagnostics
275      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
276        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
277    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
278      usingSphericalGrid, this allows to define the rotated grid coordinates
279      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
280      geographical coordinates according to the inverse of the rotation defined
281      by the Euler angles, so that Coriolis parameter and online-interpolation by
282      exf works with the geographical coordinates on XC/YC/XG/YG.
283      Naturally, this feature does not work with all packages, so some
284      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
285      profiles), because there the coordinates are assumed to be regular
286      spherical grid coordinates.
287    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
288      - introduce isopycnal diffusion coefficient control.
289    o tools/adjoint_options:
290      - additional control vector components.
291    o pkg/mnc: have mnc create marginally meaning full coordinate variables
292      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
293    o pkg/mypackage:
294      - add example of read/write pickup for state-var ;
295      - add entry points to the main code for state-vars diags & write-pickup.
296    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
297      transitions for useExfYearlyFields
298      - add new subroutine that determines the file to read from for
299        use*YearlyFields = .TRUE. and .FALSE.
300      - add a verification experiment to global_with_exf that tests
301        useExfYearlyFields with USE_EXF_INTERPOLATION defined
302    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
303      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
304      subroutines (which could be generated from a template, because they are
305      almost identical), for now they are included in obcs_prescribe_read.F for
306      simplicity
307    o pkg/exf:
308      - add a little more diagnostic to exf_interp_read (in analogy to
309        mds_read_field, can be turned off with debugLevel < debugLevA=1)
310      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
311        ugly but fast by unrolling short inner loops, inserting a unroll=8
312        directive in routine lagran, and splitting a loop and making do while the
313        outermost loop (the latter requires the intoduction of index arrays)
314    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
315    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
316      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
317    o verification/seaice_obcs: updated for restart test and latest options
318    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
319      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
320      for now this is only available for the C-grid code and also within
321      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
322    
323    checkpoint59m
324    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
325      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
326    o gad_som : fix flux output (& diagnostics) to have same units as other  
327      advection scheme fluxes (was previously multiplied by deltaT).  
328    o added verification/seaice_obcs both to test seaice open boundaries
329      and to provide an example matlab scrpt for generating them
330    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
331    o pkg/salt_plume: clean up salt_plume_frac.F to
332      remove redundancy in PlumeMethod 1 and 4
333    o pkg/kpp: added saltplume diagnostics
334    o pkg/obcs and pkg/seaice:
335      - do not set uice and vice to zero when OB*icefile are unspecified
336      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
337      - moved seaice tracer obcs after call to seaice_growth
338    o pkg/salt_plume: added various options for salt plume depth
339      criterion and for vertical distribution of the salt
340    
341    checkpoint59l
342    o pkg/ptracers: new version of ptracers pickup:
343      read meta file and write only fields which are needed to restart.
344      ( same logic as main pickup file ; also using pickupStrictlyMatch )
345    o pkg/seaice:
346      - add timescale for melting due to warm mixed layer as a means of
347        setting SEAICE_availHeatFrac more conveniently
348      - add a CPP-flag/runtime parameter check for flooding algorithm
349      - reformulated availHeat in seaice_growth.F to be independent of AREA
350    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
351      unit changes
352    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
353    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
354      SX vector computer.
355    o pkg/seaice:
356      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
357        seaice forcing fields can now be read only through pkg/exf
358      - removed some unused halos
359    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
360    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
361      or U/VICE from U/VWIND before computing U/VSTRESS
362    
363    checkpoint59k
364    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
365      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
366    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
367      all experiments pass when compile with un-initialised var. checking option.
368    o added pkg/salt_plume
369    o script to test restart (for now, in MITgcm_contrib/jmc_script)
370    o pkg/seaice: new read/write pickup version.
371      read meta file and write only fields which are needed to restart.
372      ( same logic as main pickup file ; also using pickupStrictlyMatch )
373    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
374    o lab_sea.hb87: modify the domain & update output.hb87.txt :
375      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
376      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
377      process. Fixed here by closing the domain at the Northern boundary.
378    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
379    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
380      a set of consecutive levels in/from a 3-D array.
381    o pkg/ptracers:
382      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
383      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
384    
385    checkpoint59j
386    o in pkgs: dic, obcs, offline, rbcs:
387      standard way to compute coeff. for time interpolation between 2 time reccords
388      which retains full precision (& make results less dependent on compiler).
389      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
390    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
391      packages instead of reading ice cover and wind speed separately
392    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
393     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
394      to allow to compile customized code before the update)
395    o cleaning-up:
396      - fix CPP instruction syntax in pkg/obcs
397      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
398        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
399      - fix some threads issue in IO parts.
400    o pkg/dic:
401      - add tons of "_d 0" (--> much better testreports !)
402       and then update outputs of tutorial_global_oce_biogeo
403    o pkg/mom_fluxform:
404      add a special version of momentum advection intended to conserve momentum
405      next to a bathymetry step or a coastline edge. (default = off = #undef)
406    o new read/write pickup version:
407      - for now, only implemented for main (mdsio) pickup file.
408      - write out only what is needed to restart; merge pickup_nh , pickup_ph
409        and main pickup together.
410      - read meta file; read only what is needed to restart; stop if a field
411        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
412        if it make sense (even if the restart is not perfect).
413      - if no meta file, assume that pickup to read corresponds exactly to
414        a pickup that would currently be written.
415      - read pickup written in the old format (until checkpoint59i) if it
416        recognizes an old meta file (no field-list).
417      - add a meta file in exp. which starts from a pickup: 2 cases:
418        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
419         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
420        b) a meta file describing the content of the associated pickup file
421         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
422    o pkg/mdsio & pkg/rw:
423      - new routine to read a meta file ; new set of routine to read
424        Multiple-fields file (with meta file).
425    o added open boundary conditions capability for seaice
426        HSNOW, HSALT, UICE, and VICE
427    
428    checkpoint59i
429    o adjoint:
430      * fix multiDimAdvection adjoint
431        (partial recomputation problem by TAF for fVerT(:,:,kDown)
432        and comlev1 size definition (maxpass vs. max. number of tracers)
433      * verification/global_ocean.90x45x15 adjoint now tests
434        NLFS and multiDimAdvection using DST3 (=30)
435      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
436    o pkg/kpp: add "_d 0" to real constant (if missing);
437      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
438      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
439    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
440      for internal parameters related to restart process (formerly from PARAMS.h)
441      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
442    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
443      as argument. (only atm2d & obcs write_pickup have not yet been updated)
444    o pkg/monitor:
445      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
446      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
447      - account for deep Atmosphere factor and density factor (anelastic)
448    o added open boundary conditions capability for seaice HEFF and AREA
449    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
450      thermodynamics
451      - requires a little reorganization, which affects the testreport results
452        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
453        so that now the conservative form is tested
454      - add a few comments
455    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
456    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
457    o add new diagnostics to seaice: advective, diffusive fluxes (only for
458      multidim-advection, for scheme 2 they are not filled) and transports,
459      thermodynamic growth rates
460    o change units of EmPmR (inside the code, + within coupling interface)
461      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
462      Affects results @ truncation level (cg2d match) and update output of
463       experiments: lab_sea(6), global_ocean.90x40x15(10),
464      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
465      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
466      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
467      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
468    
469    checkpoint59h
470    o pkg/exf:
471      - improve vectorization by moving if-statement out of loops in
472        exf_mapfields, exf_radiation
473      - exf_bulkformulae.F: introduce 2D fields and vectorize code
474    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
475    o testreport:
476      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
477        monitor & update offline_exf_seaice exp. output.
478      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
479    o pkg/seaice:
480      - bug fix in the evp solver: boundary conditions were affected be
481        masking of zMax/zMin (changes results)
482      - minor bug fix in boundary conditions in seaice_calc_strainrates
483        (changes results for no_slip)
484      - seaice_lsr.F: make interpolation of eta dependent on boundaries
485      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
486      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
487        stress formulation and no-slip boundary conditions
488    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
489      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
490    o pkg/seaice: a first HSALT time stepping equation has been checked in
491    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
492      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
493      without requiring DO-IF statements
494    o pkg/thsice:
495      use continuous power-law function for partition of energy between lateral
496      melting/freezing and thinning/thickening ; old code using step function
497      still available with #undef THSICE_FRACEN_POWERLAW
498      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
499    o testreport: change AD testing : check against results/output_adm.txt
500      using same scripts as for forward test.
501    
502    checkpoint59g
503    o adjoint testing: in preparation for changing testreport:
504      - output format: cost and grad written on separated lines
505      - ad output results in directory "results" (instead of "results_ad")
506    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
507    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
508    o pkg/ecco: allow user defined cost function contributions
509    o testreport:
510      Allow to choose (per experiment) the list of tested output variables
511       and the main variable (used to issue a pass/FAIL ) ;
512      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
513      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
514      Also modify printing of summary:
515       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
516       b) echo the list of tested variables in the individual summary.txt of
517          each experiment.
518    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
519      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
520      (but still depend on the tile decompostion of the domain).
521    o pkg/seaice: change a discretization detail to make the B-grid code
522      "more symmetric". This change is likely to remove all "ridges/leads" that
523      where quasi-aligned with the grid in B-grid solutions. It may also be
524      the solution to the stress coupling issues with the B-grid.
525    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
526      remove .cvsignore from input dir. (since testreport no longer run here).
527    o pkg/thsice:
528     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
529     - fix reshaping of sea-ice just after advection:
530       melt all the ice only if ice-volume is too small.
531     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
532       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
533     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
534    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
535      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
536    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
537      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
538      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
539      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
540      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
541      -> update output.txt
542    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
543     this affects truncation error: -> update output.txt of exp:
544      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
545      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
546    
547    checkpoint59f
548    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
549    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
550      a bounded range (in forward mode)
551    o pkg/ecco, ctrl, autodiff and mom_common:
552     internal parameter controls, completements of implementations
553    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
554    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
555      (not seem any difference in testing results).
556    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
557       at face corners.
558    o pkg/generic_advdiff:
559     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
560      loop range indices for computing vertical advection tendency
561      and do the calculation in the interior only (no overlap) ;
562      for now, only implemented for SOM advection (to save CPU time).
563     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
564    o exch2 adjoint
565      First set of changes:
566      - add exch2 hand-written adjoint templates
567      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
568        This will require cleanup in pkg/autodiff/*.F
569        (changed routines currently kept separate in verif. code/)
570      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
571        that used to hide exch2 or cubed-sphere specific code
572        (commented via 'cph-exch2')
573    o pkg/seaice
574      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
575    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
576       output of global_ocean.cs32x15.thsice .
577    
578    checkpoint59e
579    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
580      for B-grid vector (not yet tested) and C-grid vector (<- only used
581      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
582    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
583      (#ifdef ALLOW_SALT_PLUME)
584    o gather_2d/scatter_2d: removed halo regions
585    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
586      scheme and the corresponding test case (under front_relax dir). For now,
587      only available with Skew-flux form and not yet tested in realistic set-up.
588      adjoint: store directives updated, but gradient checks deteriorated,
589      so maybe GM/Redi adjoint is now broken.
590    o seaice adjoint
591      * add AREA, HEFF, HSNOW as control variable
592        (should not change lab_sea results)
593      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
594    o pkg/seaice:
595      * added computation of saltFlux in seaice_growth;
596        For time being, sea ice salinity is assumed constant
597        contribution of snow flooding to freshening of sea ice is neglected.
598        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
599        defaults to 0.0 in order to maintain backward compatibility.
600        Typical values for SEAICE_salinity are 4 to 10 g/kg.
601      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
602      * added SEAICE_availHeatFrac, which specifies fraction of surface level
603        heat content used to melt or grow ice
604      * commented out cap of HICE: it helps keep ice thinner
605      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
606      * applied OBCS T/S mask to HEFFM sea ice mask
607    
608    checkpoint59d
609    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
610     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
611     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
612    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
613     and change default value of parameter "GM_Small_Number";
614     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
615       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
616       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
617    o pkg/ecco: cost function when applying pkg/smooth to controls
618    o pkg/ctrl: add forcingPrecond run time parameter
619    o pkg/seaice:
620     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
621     - fix bug in metric terms of u-equation in LSR solver (implicit part),
622       changes verification/lab_sea
623     - rearrange implicit part of u-equation in LSR solver to make it easier to
624       read, understand, and debug. This causes changes at the truncation level.
625     - fix (serious) bug in the boundary conditions (sign error in the implicit
626       part) of the LSR solver. Changes all LSR results.
627     - fixed problem with HSNOW initialization to avoid thick snow when AREA
628       is initilized with small values - does not change lab_sea results.
629     - added HsnowFile initialization capability
630    o pkg/smooth: addition to model/src and pkg/ctrl so allow
631     initialization of pkg/smooth and application to control vector
632    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
633    o dependencies: pkg/profiles requires pkg/cal
634    o pkg/profiles:
635     - added option ALLOW_PROFILES_GENERICGRID
636         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
637         that interpolation information (grid points and coefficients) is provided
638         within the netcdf input files.
639         -> sample matlab scripts can be found in MITgcm_contrib/gael
640         that allow you to prepare netcdf input files.
641     - also modified: cleaner include statements, cleaner error print statements,
642       cleaner stops when error, and more tests of the netcdf input files consistency.
643    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
644    o pkg/seaice:
645     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
646       requires a new routine: seaice_diagnostics_fill.F
647     - make sure that seaice does not move if not forced (pressure replacement
648       method, Hibler and Ip, 1995), changes results
649     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
650     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
651       It is turned off by default (=-1.), because it changes the results.
652     - make it possible to read AREA from a file, too.
653    
654    checkpoint59c
655    o add S/R and diagnostics for oceanic mixed-layer depth
656    o move GMRedi call after all vertical mixing schemes (including KPP)
657    o pkg/thsice:
658     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
659      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
660    o pkg/obcs:
661     - bug fix for balance code
662    o pkg/seaice:
663      - allow values of SEAICE_elasticParm > 1
664      - add new parameter SEAICE_evpTauRelax as an alternative
665        to SEAICE_elasticParm
666      - make lsr boundary conditions free slip (by default), changes result
667      - add code for no slip boundary conditions for lsr
668      - set minimum of zeta to zero (and not 4e8) (changes results)
669      - add a cap on AREA after advecting AREA if seaice_growth is not called
670    o change calculation of Visbeck K:
671      - no longer depend on tapering scheme; instead, compute slope (limited
672        by GM_maxSlope). this is equivalent to what was comuted before with
673        clipping or linear tappering.
674      - fix vertical averaging (wrong by 1/2 level)
675      - leave the old version (but will not be maintained) within
676        #ifdef OLD_VISBECK_CALC / #endif
677      - update output of exp. ideal_2D_oce
678    o change error catch in calc_r_star to improve vectorization
679    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
680      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
681    o adjoint:
682      Re-organized adjoint checkpointing according to Matt Mazloff
683      (but with modifs/completions/cleanups)
684      Storing is now bundled into large arrays to optimized I/O
685      (and second step in cleanup of the_main_loop)
686    
687    checkpoint59b
688    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
689      - export/import (between ocean & coupler) fields needed for ocean DIC.
690    o pkg/seaice:
691      - get rid of three more exchanges seaice_calc_viscosities (required
692        different loop boundaries in seaice_lsr and seaice_ocean_stress)
693      - bug fix in seaice_ocean_stress (update of lab_sea required)
694      - reduce loop boundaries to necessary minimum also in seaice_evp
695      - go back to the old way of computing deltaC/Z as the adjoint likes that
696        better
697    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
698      passive tracer to an Age Tracer) + update output.txt
699    o pkg/exf:
700      - implement A-grid / C-grid selection for wind-stress input files.
701      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
702      for now, in exf_bulk_largeyeager04.F only :
703      - change implementation for case where windspeed + 2. components wind-stress
704        are read-in. AND use rhoConstFresh to convert evap.
705    o pkg/seaice:
706      - use correct EXCH_UV for wind-forcing (on A-grid).
707      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
708        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
709    o pkg/exf:
710      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
711      EXF_INTERPOLATION:
712      - merge global_with_exf/code version of exf_interp_read.F
713        to the main code ;
714      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
715        reading the file ; Important: This options needs to be defined to recover
716        previous code.
717        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
718      - no longer loose real*8 precision along the way when using exf_iprec=64.
719    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
720      - change discretisation of evp-solver in order to avoid another exchange
721        (changes lab_sea) and clean up a little
722      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
723        help the adjoint (this also changes the results slightly)
724      - add a few "_d 0" where they had been missing in seaice_evp.F
725      - cleaning up: remove unused seaice_calc_rhs.F
726    o pkg/exf: some cleaning-up:
727      - change various "constants" into runtime parameters
728      - cleaned-up Large&Yeager04 routine which should eventually
729        replace exf_bulkformulae.F (changed names of S/R and CPP)
730        and merged various ALLOW_ATM_WIND options
731     only used with thsice pkg (in thsice_get_exf.F):
732      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
733        which are used when useStabilityFct_overIce=TRUE (= the default)
734      - change default values of ice & snow emissivity and scale downward LW
735        by ice & snow emissivity.
736    o pkg/thsice:
737     fix few little problems, in thsice_calc_thickn.F:
738      - growth vertically (and not laterally) if iceFrac == iceMaskMax
739      - melt only laterally if hIce < hThinIce (as the comments say)
740      and in thsice_extend.F:
741      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
742      - start to form ice as soon as the minimum ice-volume is reachable.
743     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
744      and cpl_aim+ocn
745    o pkg/kpp
746     - move computation of surface related input fields to KPP into a new
747       subroutine kpp_forcing_surf.F
748     - remove wrong (within bi,bj loops) EXCH calls.
749     - little cleaning (add argument myThid in last position, cvs header ...)
750     - for now, fix conservation problem by exchanging KPPviscAz (may not
751       be the best fix)
752    o pkg/seaice
753     - check for inconsistent evp parameter/cpp-flag combination
754     - remove leftover errIO flat for obsolete name list error handling
755    o OpenAD
756     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
757    
758    checkpoint59a
759    o pkg/seaice: some parameter clarifications and a little bit of clean up
760    o pkg/thsice: rename run-time parameters:
761       himin       -> hIceMin
762       himin0      -> hThinIce
763       hihig       -> hThickIce
764       i0          -> i0swFrac
765       transCoef   -> bMeltCoef
766       frac_energy -> fracMelting
767      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
768       with default values (for now) that do not change the results.
769      remove old version of thsice vars advection in pkg/seaice.
770    o in FFIELDS.h:
771      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
772      - make pLoad & sIceLoad always available (but still only used if
773         ATMOSPHERIC_LOADING is #define).
774    o pkg/kpp: replaced _KPP_RL with _RL
775    o bug fixes for vertical diffusivity computations when both KPP and
776        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
777        are no longer updating the vertical diffusivity array
778        (passed as argument) but are (re-) setting those arrays.
779    o pkg/seaice: fix bug in evp solver, while doing that
780      - change (improve?) discretization of stress computations for both
781        cgrid-lsr and evp solver
782      - add a new routine to compute strain rates
783      - the above changes lab_sea results
784      - add no slip conditions for evp solver (off by default), lsr-version
785        may follow
786      - fix exchange for shear at Z-points (does not change lab_sea)
787      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
788        (to force the user to pick a time step since there is not "safe" way
789        of choosing it)
790      - add principal stress diagnostics
791      - rearrange fields for evp a little to avoid having to call a: too many
792        exchanges and b: exchanges for stress trensor components which we do
793        not have.
794      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
795        of evp, complete rewrite for lsr case (latter is does not yet work
796        in all cases)
797    o pkg/kpp: add code to have mixing in shelf ice caverns
798      - add myThid to all kpp routines (long overdue)
799    
800    checkpoint59
801    o pkg/exf:
802      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
803        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
804      - move exf header files from lower_case.h to UPPER_CASE.h ;
805        add missing cvs Header & Name
806      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
807      - add namelist param. selectStressGridPosition, exf_monFreq
808      - retire many _CLIM routines, and remove data.exf_clim
809        + params moved to data.exf
810        + climsst, climsss now handled by exf_set_gen, i.e.
811          climss?period=0 refers to constant field,
812          climss?period=-12 to monthly forcing
813      - split up namelists in data.exf
814    o pkg/seaice:
815      - remove seaice_exch and seaice_exch_uv
816      - remove superfluous exchange of theta
817      - add myThid to seaice_budget_ocean/ice
818      - add new interface for atmospheric wind forcing (C-grid only)
819        + new routine
820        + two new field (taux, tauy for stress over ice)
821        + removed one global field (DAIRN) for C-grid case only
822    o pkg/thsise
823      - 2nd set of modifs for thsice adjoint in conjunction with exf
824    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
825    
826    checkpoint58y_post
827    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
828      vertical diffusivity, similar to that in MOM4; turned on using
829      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
830      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
831    o Added capability for 3D specification of background vertical diffusion
832      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
833      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
834      "data" file that contains the 3D vertical diffusivity coefficients.
835    o ice dynamics (pkg/seaice) with thsice thermodynamics:
836      - add code within pkg thsice to advect & diffuse sea-ice fields
837      similar to (and will replace) what has been added in  seaice_advdiff.F,
838      but: - conserving Mass, Heat & Salt.
839           - better when using non-linear advection scheme (not yet fully tested)
840           - can also be used in atmospheric set-up (for now, only the diffusion).
841    
842    checkpoint58x_post
843    o IO option for global-file compact format:
844      - add options when generating topology (utils/exch2/matlab-topology-generator)
845      - add I/O capability (pkg/mdsio).
846      - adapt utils/matlab/rdmds.m to read this format.
847      for now long-line format not yet supported by pkg/mdsio (& exch2).
848    o shelfice: add a few diagnostics
849    
850    checkpoint58w_post
851    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
852      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
853      (and replace horiVertRatio in NH code).
854      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
855                         and tutorial_plume_on_slope (sensitive to truncation)
856    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
857      directly to drive seaice model (C-grid only)
858    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
859     - reintroduce computation of wind from stress,
860     - compute tau (in exf_bulkformulae.F) from windstress averaged to
861       mass points to avoid tau = 0
862     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
863    o rdmnc.m: make it work with "global" files created with gluemnc
864    o rdmnc.m : some improvements in dealing with singleton dimension
865      (tested on all testreport mnc output files).
866    o genmake2: disable pkg/profiles if netcdf test fails.
867    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
868    o move call to cal_readparms up to make calendar parameters/variable available
869      to all packages
870    
871    checkpoint58v_post
872    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
873      useDynP_inEos_Zc tested.
874    o pkg/exf: changes to properly interpolate/mask/scale initial fields
875    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
876      and portions thereof.  See read_cs.txt for description and examples.
877    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
878      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
879      following the great-circle arc between those 2 points.
880    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
881      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
882    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
883     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
884     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
885     - still needs work (not working with some options ; efficiency to improve)
886       and serious testing.
887     - use this scheme for temperature & salinity in 2 advection test exp.:
888       advect_xy & advect_xz, respectively.
889    
890    checkpoint58u_post
891    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
892    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
893    o testreport: add option "-skipdir" to skip some test.
894    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
895      momentum calculation.
896    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
897    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
898      remove checkpoint.F and the_correction_step.F (no longer used);
899      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
900    o add option (linFSConserveTr) to correct for tracer source/sink due to
901      Linear Free surface
902    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
903    o pkg/thsice: fix reading mnc-pickups
904    
905    checkpoint58t_post
906    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
907    o pkg/mdsio:
908     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
909       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
910       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
911     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
912     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
913       either MDS_READ_FIELD or MDS_WRITE_FIELD )
914     - new S/R (to replace MDSWRITEMETA), which allows to write more
915       informations (variable names, time ...) to meta files.
916     - modify rdmds.m to give back the meta file content.
917    o pkg/diagnostics: change vertical interpolation to be safer, and more
918       flexible (define p-levels to interpolate to in data.diagnostics);
919      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
920       diagnostic pointer.
921    o pkg/seaice: more cleaning up of seaice_growth, added many comments
922    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
923    o fix multi-category seaice:
924     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
925       SEAICE_MULTICATEGORY
926     - fix short wave heat flux
927    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
928       and allow to use EVP solver. Change forward lab_sea: test both EVP
929       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
930    o Initial check-in of lab_sea adjoint
931      (very similar to natl_box_adjoint/code_seaice)
932      * used C-grid and EVP solver
933      * used KPP, GM/Redi
934      * uses inAdExact=.TRUE.
935      * gradient checks fail for both ADM and TLM
936        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
937        f.d. gradients actually seem more problematic than ADM, TLM gradients;
938        issue is related to forward mismatch between g77 an ifort
939    o pkg/seaice: overhaul of thermodynamics
940     - growth.F and groatb.F are replaced by new routine seaice_growth.F
941     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
942     - move a few global fields out of SEAICE.h into seaice_growth.F and
943       make them 2D (FICE/QNETO/ ...)
944     - remove FO (it is the same as QNETO)
945     - introduce a few local fields to avoid modifying external fields such
946       as atemp, etc.
947    
948    checkpoint58s_post
949    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
950      changed exf_set_gen.F so that
951        genperiod=0 means input file is one time-constant field and
952        genperiod=-12 means input file contains 12 monthly means
953    o CG2D: use pre-computed solver main-diagonal (stored in common block);
954      this affects truncation error ; generate new output file for exp. which
955      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
956        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
957        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
958        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
959        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
960        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
961    o start implementation of deep-atmosphere and anelastic formulation
962    o verification: remove 2nd copy of input files and use script "prepare_run"
963      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
964    o mom_common/vecinv/fluxform: fix a few initialisation isssues
965    o profiles: fix for multithreaded case
966    
967    o diagnostics: rename few diags:
968      s/'PRESSURE'/'RCENTER '/g
969      s/'TICE    '/'oceFreez'/g
970      s/'TAUX    '/'oceTAUX '/g
971      s/'TAUY    '/'oceTAUY '/g
972      s/'SWFLUX  '/'oceQsw  '/g
973      s/DIFx/DFxE/g
974      s/DIFy/DFyE/g
975      and add few ocean-forcing diagnostics:
976      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
977    o modifications to pkg/seaice/growth.F and budget.F, which change results of
978      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
979      as actual snow thickness.  It now refers everywhere to effective snow
980      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
981    
982    checkpoint58r_post
983    o modifications to pkg/seaice/growth.F, which change results of
984      lab_sea experiment: fixes pertain to melting snow over open water, to
985      masking EVAP under sea ice, and to using the correct AREA variable for
986      computations of EVAP, PRECIP, HSNOW, and GHEFF
987    o add ability to read bathy, salt, and theta using MNC (off by def)
988    o add flooding algorithm and advection of HSNOW for pkg/seaice;
989      both are turned off by default and do no change any results
990    o seaice advection with pkg/thsice: a step toward the use of non-linear
991      advection scheme, but #ifdef or commented out for now (requires more EXCH).
992    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
993      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
994      in natl_box (affects results @ truncation level: update output.txt)
995    o multi-threading and IO:
996      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
997      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
998        (needed to work with SingleCpuIO): tested in all verif. exp.
999    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1000      affects the results (but none of the verification test uses this scheme).
1001    o Adding some pkg/diagnostics capability to pkg/seaice
1002      (will certainly be subject to changes)
1003    o ctrl: adding new control variables:
1004      lwflux, lwdown, evap, snowprecip, apressure, runoff
1005    
1006    checkpoint58q_post
1007    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1008      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1009      high_res_cube configuration by 4% on Columbia.
1010    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1011      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1012      dynamical allocation (seems to work in multi-threaded).
1013    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1014      single CPU io) so that TAF does not have to see EESUPPORT.h
1015    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1016    
1017    checkpoint58p_post
1018    o obcs: stop if obcs is used with useCDscheme = .true.
1019    o shelfice:
1020     - fix a sign error so that no slip at shelfice interface works
1021     - remove stop for combination non-hydrostatic code and shelfice. That does
1022       not mean, that the results are correct, but at least they are numerically
1023       stable
1024    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1025    o added adjoint exch routined for all exch*3d* routines
1026      and updated flow directives
1027    
1028    checkpoint58o_post
1029    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1030      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1031    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1032      and clean-up reading/writing of pickup files.
1033    o fix local version of read/write pickup (NH part) in rotating_tank/code
1034    o simplify EXCH interface:
1035     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1036     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1037    o added the regrid package
1038    o shelfice:
1039     - add a simple boundary layer scheme to reduce noise
1040     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1041    
1042    checkpoint58n_post
1043    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1044       local variable (not in common block).
1045    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1046      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1047      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1048        to work with SingleCpuIO.
1049    o add "_d 0" to real constant of pkg/cfc subroutines ;
1050       update exp. cfc_exemple & tutorial_cfc_offline output files.
1051    o multi-threading and IO:
1052      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1053        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1054      - barrier before and after reading.
1055      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1056      - avoid using MDS_WRITELOCAL for LAND pkg output.
1057      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1058        common-block variables ; Allows multi-threading with master-thread IO.
1059    o change default MAX_NO_THREADS from 32 to 4 ;
1060      and stop cleanly when MAX_NO_THREADS is too small.
1061    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1062    
1063    checkpoint58m_post
1064    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1065       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1066    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1067       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1068       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1069    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1070        add MITgcm_tutorials (= code + all the tutorials)
1071    o ecco, option to compute cost for total ssh (mean+anom)
1072    o consistent with addition of ptracer and ssh in pkg/profiles
1073    o profiles: adding ptracer and ssh
1074    o testreport: change multi-test output-file name
1075      (from output.txt.{name} to output.{name}.txt)
1076    o profiles: now ok for mutli-tiles case
1077    o seaice: add 4 parameters for different advection schemes for area,
1078      (effective) seaice thickness, enthalphy, and snow height. Their default
1079      is the standard parameter SEAICEadvScheme
1080    o calc_gw:
1081     - add cosFacU in zonal viscous flux (harmonic.visc.).
1082     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1083       of tutorial_plume_on_slope.
1084    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1085    o calc_gw: true flux-form, account for horizontal grid spacing.
1086      update rotating_tank results, but not plume_on_slope (affected at
1087      truncation level, 11 digits).
1088    
1089    checkpoint58l_post
1090    o calc_gw:
1091     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1092     - remove side-drag for now (need to fix it); update plume_on_slope results.
1093     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1094    o commit code to make SST/SSS weights spatially variable
1095      (based on either variable in-situ or variable initial T/S weights)
1096    o pkg/ecco:
1097      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1098        now based on horizontally varying weights wthetaLev, wsaltLev
1099      * cost_averagesflags now returns year indices in addition to day, month
1100      * sflux balance is performed on annual basis
1101        (sflxumm, sfluxmm2, bal_sfluxmm)
1102      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1103        including separate counting and multipliers
1104    o pkg/rbcs
1105      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1106    
1107    checkpoint58k_post
1108    o testreport:
1109     - always build in dir. "build" (if not there, mkdir build instead of building
1110       & running in input)
1111     - run in dir run (if it exists), in build otherwise.
1112     - call prepare_run (if input/prepare_run exists)
1113     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1114    o pkg/exf modifications to interpolation and rotation routines for more
1115       reasonable treatment of North Pole singularity: for tracers North Pole
1116       value is set to northernmost zonal-mean value, for zonal velocity it is
1117       set to zero, and for meridional velocity it is set to northernmost value.
1118    o pkg/exf/exf_check_range.F
1119     - add tile index to diagnostics and move stop statement to the very
1120       end of the routine.
1121    o pkg/diagnostics: (diagnostics_main_init.F)
1122      define title of isomorphic variables according to the current config.
1123    o pkg/thsice with pkg/seaice dynamics:
1124    - fix domain of computation (interior only, required for exf) and do exchanges
1125    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1126    o towards a standard way of dealing with multi-threading in MONITOR
1127      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1128    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1129       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1130    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1131    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1132    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1133       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1134    o tracer advection:
1135     - clean-up and simplify calc_common_factors.F
1136     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1137       advection subroutine (but still not used within DST advection S/R)
1138    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1139    
1140    checkpoint58j_post
1141    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1142      from file (collects calls previously in FORWARD_STEP)
1143    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1144    o adjoint store dir. adjusted accordingly
1145    o genmake2
1146      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1147    
1148    checkpoint58i_post
1149    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1150      on wind stress (SEAICEstressFactor defaults to 1.)
1151    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1152      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1153    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1154      on CS-grid: no longer loosing mass.
1155    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1156    o pkg/ggl90: fix sloppy output and fix a bug
1157    o pkg/seaice: added SEAICEuseEVPpickup parameter
1158      - Set to false in order to start EVP solver with
1159        non-EVP pickup files when using SEAICEuseEVP
1160      - fix sign error in diffusion in seaice_calc_rhs
1161    
1162    checkpoint58h_post
1163    * Modifications for bottom topography control
1164      o replace hFacC by _hFacC at various places
1165      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1166      o add non-self-adjoint cg2d_nsa
1167      o update autodiff support routines
1168      o re-initialise hfac after ctrl_depth_ini
1169      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1170    * Adding verification for 5x5 box (4-layer) bottom topography control
1171    
1172    checkpoint58g_post
1173    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1174       used for mean seasonal cycle, mean diurnal cycle); add an example
1175       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1176    o pkg/ggl90:
1177      - add parameter (minimum surface kinetic energy)
1178      - fix bug (avoiding division by zero)
1179    o couple pkg/thsice to pkg/seaice:
1180      - modify advection in seaice to accomodate new scalar fields to be advected
1181      - only muliDimAdection scheme work with seaice/thsice
1182      - mapping of thsice-variables to seaice-variables, back and forth
1183      - does not break the verification experiments, but does not give the
1184        desired results either
1185    o pkg/seaice
1186      - make (default) second order advection a bit less confusing?
1187    
1188    checkpoint58f_post
1189    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1190      to pkg/seaice):
1191      - new routines thsice_map_exf and thsice_get_exf provide the interface
1192      - add an additional formal parameter to thsice_solve4temp
1193    o pkg/exf:
1194      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1195      - correct Stefan-Boltzmann constant
1196      - new parameter for longwave surface emittance
1197      - separate some stuff from exf_bulkformulae into new routines  
1198        exf_radiation, exf_wind
1199      - add new parameters and constants: longwave emissivity for ocean, ice
1200        and snow, evaporation parameters over ice
1201      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1202        either wind from stress or stress from wind
1203    o pkg/thSIce:
1204    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1205    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1206       and THSICE_CALC_THICKN
1207    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1208    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1209      to make debugging easier.
1210    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1211    o pkg/bulk_force:
1212      - clean-up comments and parameters ;
1213      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1214    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1215      generate new output for test-experiment: aim.5l_cs.thSI
1216    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1217      testreport accordingly
1218    
1219    checkpoint58e_post
1220    o SEAICE_CGRID adjoint done
1221    o R_STAR adjoint implemented.
1222      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1223      * need to sort out init. of h0facc, etc.
1224    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1225      to be able to use it in pure forward.
1226    
1227    checkpoint58d_post
1228    o upgrade simple test-experiment to tutorial example:
1229     step.1: duplicate the experiment and (step.2) will remove the old copy.
1230      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1231      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1232      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1233      tutorial_global_oce_biogeo    <- copy of dic_example
1234      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1235      tutorial_plume_on_slope       <- copy of plume_on_slope
1236      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1237      tutorial_global_oce_optim     <- empty for now (David ?)
1238      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1239     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1240    o correct a sign problem in cost_scat.F
1241    o obcs and ptracers: fix boundary conditions for advections schemes
1242      with larger stencil
1243    o thsice adjoint: start
1244    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1245      completeness
1246    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1247      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1248    o ptracers adjoint:
1249      * avoid extensive recomputatations
1250      * fix missing re-init. of gptr (missed by TAF)
1251    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1252      me to turn off the excessive output to STDOUT that this package produces
1253    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1254      and add those terms in Vector-Invariant formulation.
1255    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1256      if the control period (xx_hfluxperiod etc) is 0
1257    o in profiles pkg, clean routines and fix details
1258    o in ecco pkg, reading ssh data:
1259      fix problem in case the model does not start at iter0=0
1260    o fix mnc-pickup/restart for ptracers
1261    o new package prifiles:
1262      code to compute profile-based cost by Gael Forget
1263      (modifs in ecco, ctrl, autodiff)
1264    o Benign bug fix in initialization (spotted by M. Mazloff) of
1265      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1266    
1267    checkpoint58c_post
1268    o adjoint: finish NLFS adjoint and provide reference output in
1269      verification/global_ocean.90x40x15/results_ad_nlfs
1270    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1271      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1272      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1273      with SEAICE_CGRID defined.
1274    o move calendarDumps from "data" to "data.cal" and clean-up the code
1275      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1276    o add useEXF & useCAL flags (for now, set in hard-coded way)
1277    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1278      (were missing in NH mode, and wrong in quasihydrostatic mode).
1279      waiting for Chris updated version of calc_gw to add those CALLs.
1280    o fix bug in quasihydrostatic S/R ;
1281      add a test for this option: global_ocean.90x40x15.qshyd
1282    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1283      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1284    o add on/off flag useOffLine for package OFFLINE
1285    o seaice:
1286      - modify advection so that it works also on the C-grid
1287      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1288        problem in multi-tile runs with C-grid
1289      - add flags for clipping ice velocities and/or masking solver forcing
1290      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1291        C-grid solver
1292      - added a few comments to seaice_diffusion.F
1293      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1294        are now exclusive)
1295      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1296        required re-ordering the code a little:
1297       + make DAIRN global variable (defined in SEAICE)
1298       + move computation of the viscosities eta and zeta into a new separate
1299         routine (because I need to recompute them in seaice_ocean_stress.F)
1300    
1301    checkpoint58b_post
1302    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1303      update output.txt of exp. aim.5l_cs.thSI
1304    o various mnc cleanups and improvements:
1305      + shrink lookup tables by factor of ~4
1306      + better error reporting when running out of lookup space
1307      + able to handle longer path/file names (up to 500 chars)
1308    o adjoint:
1309      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1310      - TBD: "hidden" mom_vecinv recomp. in dynamics
1311    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1312     (allow to differentiate between forcing components using new integer flags:
1313      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1314     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1315    o ecco
1316      - enable trend removal from SSH anomaly obs.
1317    o adjoint
1318      - a fix for PmEpR when #undef EXACT_CONSERV
1319      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1320      - try to fix "hidden" recomp. in forward_step for NLFS
1321        (NLFS seems broken sometimes after I checked it in)
1322    o seaice:
1323     - add c-grid version of the dynamic solver:
1324       + three new routines that are the c-grid substitute lsr, dynsolver
1325         and ostres
1326       + put a few fields that were local to dynsolver into global common
1327         blocks, so that I can move the computation of stresses etc into
1328         seaice_lsr (saves coding but may break the adjoint).
1329     - replace more hardwired parameters by runtime parameters
1330     - add ice masks that mask the rhs of the implicit solvers where there
1331       is no ice (commented out in seaice_dynsolver, because i am not sure
1332       if this works properly), eventually this should replace the clipping
1333       of ice velocities in seaice_dynsolver to +/-40cm/s.
1334    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1335      include it only where its needed
1336    o move balancing of fluxes before the call of external_forcing_surf
1337    o seaice:
1338      - correct units of turning angles (now they are really in degrees)
1339      - move computation of GWATX/Y out of main routine into dynsolver
1340      - initialize GWATX/Y in seaice_init
1341    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1342      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1343    o seaice: add runtime flags for turning angles (default to zero)
1344    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1345      and trend from exf forcing and ctrl control adjustments
1346    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1347      (since checkpoint57x_post)
1348    o change the default rotation period to 86164.s = the Earth rotation
1349    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1350      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1351    o seaice advection: add code for choosing between the default (2nd order
1352      central differences) and multiDim advection schemes provided by
1353      pkg/generic_advdiff
1354    o seaice:
1355      - removed all references to SEAICE_GRID.h fields from
1356        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1357        (cubed-sphere configuration will change a little)
1358      - grid computations in seaice_init are obsolete now.
1359      - cleaned up code a little so that is easier to read (hopefully).
1360      - added new (better?) discretizations of default advection and diffusion
1361        (turn on with SEAICEuseFluxForm)
1362      - replace 1 in 3d global fields by kSurface in growth.F
1363      
1364    checkpoint58a_post
1365    o seaice:
1366      - bug fix in advect.F
1367    o shelfice:
1368      - separate shelfice load anomaly from pload (breaks with time
1369        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1370        Its default is 0., but it may be computed more cleverly from (unknown)
1371        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1372        done offline. A good approximation of the pressure load anomaly is
1373        necessary to avoid large initial adjustment processes underneath
1374        deep-reaching shelfice.
1375      - small fix in ISOMIP shelfice_thermodynamics
1376      - add more sophisticated thermodynamics of Hellmer (1989), this is
1377        now the default
1378      - give a few constants more intuitive names
1379    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1380      if bulk formulae are used in long integration (especially EmPmR). Turn
1381      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1382      if balancePrintMean, the imbalance that is substracted is printed to
1383      STDOUT.
1384    o fix bug (typo) in obcs_apply_eta.F
1385    o add a new package shelfice which enables us to model the circulation
1386      underneath shelf-ice with draughts of hundreds of meters.
1387     - works
1388     - to do: + include improved thermodynamics
1389              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1390                instead of new field kTopC
1391              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1392                instead of new field R_shelfIce and new code in ini_depth.F
1393                and ini_mask_etc.F?
1394              + adjust vertical mixing schemes?
1395    o seaice pkg:
1396     - add a cpp-flag to include a simple formula for a salinity dependent
1397       freezing point of sea water at the surface
1398     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1399       meridional stresses are now different (and hopefully correct)
1400    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1401       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1402       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1403    o pkg/diagnostics: add options and parameters for regional-statistics
1404       diagnostics ; define regions by reading a region-mask from a file
1405       (might add other options later)
1406    o pkg/bulk_force:
1407     - add option and parameters to use AIM surface-flux formulae.
1408     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1409       others forcing fields (defined in PARM05, parameter file "data") are loaded
1410       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1411     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1412     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1413     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1414       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1415     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1416    
1417    checkpoint58
1418    o add "--embed-source" option to genmake2 which, when the supporting
1419      tools can be compiled (as determined by genmake2) will turn on the
1420      embed_files package which then embeds the entire MITgcm source code
1421      (*.[fFhc] + Makefile) used for the build within the executable
1422      - requested by CNH but off by default
1423      - adds a paltry <9MB to the mitgcmuv executable in most cases
1424      - only writes the output when useEMBEDSRC in eedata is true
1425    o clean up 3-dim. relaxation codes:
1426      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1427      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1428      * Thanks to Tom Haine for testing!
1429    
1430    checkpoint57z_post
1431    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1432      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1433    o fix the pickup behavior for obcs in combination with ptracers
1434    o fix a bug in ptracers_external_fields_load
1435    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1436      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1437    o transfered surface NH pressure to eta field (if exactConserv).
1438    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1439         and update lab_sea output.txt file.
1440    o completing 3-dim. relaxation code: additional term
1441         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1442      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1443      * At compile time, in "EXF_OPTIONS.h" set
1444          #define  ALLOW_CLIMTEMP_RELAXATION
1445          #define  ALLOW_CLIMSALT_RELAXATION
1446      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1447          tauThetaClimRelax3Dim = 15552000.0,
1448          tauSaltClimRelax3Dim  = 15552000.0,
1449      * 3 cases:
1450          1) Use a constant-in-time 3-dim. field
1451          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1452          3) Real-time relax. to time-evolving prescribed field
1453    o Adding Laplacian-type smoothness constraint on
1454      initial and boundary (forcing) controls (ic, bc)
1455      * enable at compile-time via
1456        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1457      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1458      * Absolute scale somewhat unclear so far
1459      * no area weighting was included since no other cost term does so far
1460    
1461    checkpoint57y_post
1462    First step for a NLFS adjoint
1463    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1464    o new init. routines for calc_r_star, calc_surf_dr
1465    o still need to deal with ini_masks_etc
1466    o testreport seemed happy
1467    checkpoint57y_pre
1468    
1469    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1470    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1471    o add new offset feature to offline pkg (plus minor cleanup)
1472    o cfc fixes for final year of integration
1473    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1474      be in GCHEM_OPTIONS).
1475    
1476    checkpoint57x_post
1477    o fix testreport Pb in multiple test experiment.
1478    o cleanup our namelist syntax in verification:
1479      - make it more F95 standards compliant (some work still needed)
1480      - allows the vast majority of our tests to work with gfortran
1481    o Non-Hydrostatic:
1482     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1483     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1484    o Allow to apply AB on T,S rather than on AB(gT,gS):
1485     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1486     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1487       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1488     - need a "clever" read_pickup to restart from the other AB formulation
1489    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1490    o remove some unused variables (reduces number of compiler warnings)
1491    o adjoint
1492      * Disable useVariableViscosity for adjoint for time being
1493        (there are a number of extensive recomputations)
1494      * Initialize certain variables needed for adjoint
1495    
1496    checkpoint57w_post
1497    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1498                 fix the singleCpuIO RS version of MDSWRITEFIELD
1499       and add a WARNING if using globalFiles=T with multi-processors.
1500    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1501      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1502    o tracer advection scheme:
1503      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1504       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1505       was not very convenient).
1506      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1507       (further tests needed for the implicit DST & Flux-Limiter schemes).
1508    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1509      and sRef for convenience, handy, when you want to initialize
1510      ptracers in a large domain with a constant non-zero value. Also,
1511      untangle ptracers_init.F a little.
1512    
1513    checkpoint57v_post
1514    o change dome exp. to use variable viscosity in side-drag terms.
1515    o remove all the files from the cfc_offline test since they are now
1516      incorporated into tutorial_cfc_offline which has been producing
1517      identical results for a few days of testing
1518    o add new parameter: sideDragFactor to enable half-slip-side BC
1519      and change side-drag S/R to use viscosity from mom_calc_visc
1520      (can switch back by setting sideDragFactor=0.); affects results at
1521      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1522       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1523    o vorticity & strain are now computed without masking, to account for
1524      no-slip-side BC in variable viscosity calculation ; mask is applied
1525      anyway later on, before computing advection/coriolis terms.
1526    o modify exp4 to test new obcs support for reading from external files
1527      and for passive tracers
1528    o fix behavior of ptracers_monitor when monitor output is written to a
1529      netcdf-file; still not independent of monitor.F (writes in the same
1530      file).
1531    o change default value of tRef (put a uniform, meaningful value for ocean
1532      & atmos) and initialize sRef (was missing, as Martin mentioned).
1533    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1534      to be proportional to enstrophy dissipation length.  Thus,
1535       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1536      This is now consistent with Smagorinsky and with the manual.
1537    
1538    checkpoint57u_post
1539    o OBCS and PTRACERS: add open boundary support for passive tracers
1540      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1541        OB-values from file; this is not different from the way theta and salinity
1542        are treated
1543      - however, Orlanski-radiation conditions are not supported, and the model
1544        will stop if you use pTracers and Orlanski at the same time.
1545      - beefed up the rountine obcs_external_fields_load: now only those open
1546        boundary values are overwritten with values from files for which there
1547        are really files, otherwise the OB-fields remain untouched. This makes
1548        it possible to use different OBs at different ends of the domain (as
1549        with EXF)
1550    o reduce number of exch calls in shap_filt (s2).
1551    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1552      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1553    
1554    checkpoint57t_post
1555    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1556    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1557      same truncation, independent of the face number: affects affects several
1558      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1559    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1560      note that biharmonic viscosity + no-slip was not tested in any experiment.
1561    o fix bug in non-linear free-surf side-drag ; generate new output for
1562      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1563    o make mnc honor the writeBinaryPrec flag for most kinds of output
1564    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1565    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1566      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1567    o add brackets in multi-terms sum to get same truncation, independent of
1568      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1569      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1570    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1571      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1572      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1573      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1574      Suggested values of viscosity parameters found in mom_calc_visc.
1575      Many new viscosity diagnostics available.
1576    
1577    checkpoint57s_post
1578    o Add clearing-house for viscosity calculations, mom_calc_visc and
1579      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1580      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1581      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1582      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1583      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1584      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1585      ViscAhStrain and viscAhTension are now retired.
1586    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1587    o In response to JMC's bug report, genmake2 now ignores any soft-links
1588      that it finds in the *current* directory when searching for files.
1589      Soft-links found in any other source directories will still work as
1590      they did before.
1591    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1592      a C routine to unlimit the stack size
1593    o mnc-ify pkg/aim snapshot vars
1594    o mnc-ify pkg/land as requested by Daniel
1595    o various changes to mnc including:
1596      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1597      - output can now be grouped so that all files within a group
1598          change the ITER portion of their names in lock-step together
1599      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1600          and works with both EXCH1 and EXCH2 (but needs more testing)
1601      - writing works for all verification test cases w/ g77 on Linux
1602    
1603    checkpoint57r_post
1604    o make MNC variable initialization happen earlier
1605    o add diagnostics for (almost) each term of the momentum Eq.
1606    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1607    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1608    o remove MINIMAL_TAVE_OUTPUT option ;
1609      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1610    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1611      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1612    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1613    o add time-dependent SST, SSS control
1614    o cost terms in ecco/ modularized (new cost_generic.F)
1615    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1616    o new infrastructure for seaice model vs. obs misfits in seaice/
1617      * driver from the_main_loop.F is seaice_cost_driver.F
1618      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1619      * gradient check in Exp. 6a of natl_box_adjoint/
1620    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1621      (see README file)
1622    
1623    checkpoint57q_post
1624    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1625    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1626      - bug was reported by Jean-Michel and Ian Fenty
1627    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1628      update exp. cpl_aim+ocn output.
1629    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1630      Needed for high-res. runs with large global files
1631      to be able to limit tapelev size
1632    o Changed some tests for adjoint:
1633      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1634      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1635      * global_ocean.90x40x15/ back to default 3-level checkpointing
1636    o Modifications to enable scripted COMMON to MODULE conversion
1637      * verification/OpenAD/code/ has necessary scripts and description;
1638      * converts, compiles and runs successfully;
1639    
1640    checkpoint57p_post
1641    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1642    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1643      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1644    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1645    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1646      (was already the case for dissipation with mom_vecinv,
1647       and also the case for grad.PhiHyd when staggered-timeStep)
1648      This will allow to put dissipation out-off the AB time-stepping.
1649     Unfortunately, affects truncation error. Update output of exp. that "fails"
1650      (cg2d matching number) and leave the others for later: front_relax(10),
1651      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1652      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1653    
1654    checkpoint57o_post
1655    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1656      (2) its ready to be documented during the 20050801 DocFest
1657    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1658      for ideal_2D_oce and lab_sea on linux_ia32_g77
1659    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1660      in global1x1_tot/code_seaice_adj to access indices 32, 33
1661      (worth another tag)
1662    
1663    checkpoint57n_post
1664    o adding precip control xx_precip 32
1665    o adding swflux control xx_swflux 33
1666    o Replacing 10 forcing penalty cost routines by 1 generic.
1667    o Implementing partitioning in time-mean and variable adjustment
1668      for atmos. state.
1669    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1670    o in natl_box_adjoint:
1671      * updated exp 1 to 10
1672        (but does not have time-mean vs. variable split results yet)
1673    o updated global1x1/*_seaice_adj/
1674      to incorporate latest changes
1675    o enable useSingleCpuIO for mdsio vector routines
1676      (applies in particular to tapelev I/O)
1677    o removed inefficient K-loop in all active_file*control*.F
1678    
1679    checkpoint57m_post
1680    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1681      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1682    o pkg/exch2: filling of face-corner halo regions is optional
1683      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1684    
1685    checkpoint57l_post
1686     tag before updating tutorials (pre-release-2)
1687    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1688       for output and interpolation of input fields onto model grid)
1689    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1690       Affects results of exp. rotating_tank ; update output.txt.
1691    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1692          and taking the square quantity and/or using a fraction-weight field.
1693    o fix aim_diagnostics_init.F mate numbers.
1694    o add mnc output capability to diagnostics/diagstat and update
1695      our cvsignore files for the ACSII output generated
1696    
1697    checkpoint57k_post
1698    o lab_sea now uses diagnostics package and provides a suite of
1699      new EXF diagnostics output.
1700    
1701    checkpoint57j_post
1702    o exf
1703      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1704        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1705        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1706      * extended diagnostics output
1707        - now includes all EXF variables
1708        - hs, hl moved to common block
1709        - separate S/R for diagnostics, called after ctrl vector is added
1710        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1711        - EXFqnet contains true Qnet (i.e. includes qsw)
1712      * updated verif. lab_sea, global_with_exf
1713      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1714        to ensure that diagnostics sees a true EXFqnet
1715    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1716    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1717      several times with different frequencies.
1718    o mnc-ify the thsice package as requested by Daniel Enderton
1719      - the monitor--MNC output needs work
1720      - many attributes need to be added (most are currently blank)
1721    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1722      - many attributes need to be added (most are currently blank)
1723    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1724    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1725    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1726      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1727         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1728    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1729     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1730    
1731    checkpoint57i_post
1732    o Diagnostics package was changed: diagnostic allocation is now deactivated
1733      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1734    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1735      add 1rst Order upwind vertical Shear.
1736    o add a quick fix for A/B checkpointing in OFFLINE mode
1737    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1738      end-run around the C/Fortran linking horror in eesup/src/timers.F
1739    o added pkg/runclock: allows user to terminate run based on wall clock
1740    o added non-hydrostatic scaling parameter: nh_am2
1741    o pkg/my82: futile attempt to make results compiler-independent by adding
1742      some "_d 0", etc. no effect.
1743    o for mnc output, fill the 'T' coordinate var with myTime and create a
1744      separate 'iter' variable for iteration count
1745    o pkg/diagnostics:
1746      add new capability: output of Global/Regional & per-level statistics ;
1747      tested against monitor output (including land & thSIce) on various exp.
1748    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1749    
1750    checkpoint57h_done
1751      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1752      data.diagnostics, data.gchem, data.ptracers) is done.
1753    
1754    o pkg/diagnostics: prepare for Global/Regional statistics.
1755      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1756    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1757      and rename it: DIFFERENT_MULTIPLE
1758    
1759    checkpoint57h_post
1760    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1761    o pkg/diagnostics: change output frequency, now in seconds (instead
1762      of Nb of iterations). This requires to change data.diagnostics.
1763    checkpoint57h_pre
1764    
1765    o in mnc, let the user create the output dir if both mnc_outdir_date
1766      and mnc_outdir_num are false
1767    o add fflags() to pkg/diagnostics which allows one to specify, on a
1768      per-file basis, the file precision [default behavior is unchanged]
1769    o added diagnostics to pkg/kpp, including computation of mixed layer
1770      depth based on a temperature/density criterion
1771    o updated verification/natl_box to test the new pkg/kpp diagnostics
1772    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1773    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1774    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1775      not mnc -- this mistake was found by JMC and is now corrected
1776    
1777    checkpoint57g_post
1778    o add Adams-Bashforth 3rd Order time stepping:
1779      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1780      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1781    checkpoint57g_pre
1782    
1783    o make lambda[Theta,Salt]ClimRelax spatially varying
1784      (default remains spatially uniform constant based on tau)
1785    o added new control variables
1786      * init. uVel, vVel, etanN
1787      * lambda[Theta,Salt]ClimRelax
1788    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1789      (suggested by G. Forget)
1790    
1791    checkpoint57f_post
1792    o add parameter "baseTime" = model base time = time at iteration zero
1793      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1794      account for baseTime shift
1795    o move Coriolis arrays from PARAMS.h to GRID.h
1796    checkpoint57f_pre
1797    
1798    o mnc-ifying the seaice package
1799    o introduced an alternative length scale calculation for use in the limiting
1800      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1801    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1802    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1803      as well as grad(vort3).  Made it compatible with both approximate form
1804      for the cubed sphere and full form of these gradients.  Added flag
1805      useFullLeith to select between approximate and full form.  
1806    o add "d0" in getcon.F to reduce differences between compilers/platforms
1807      update output.txt of exp. fizhi-gridalt-hs
1808    o change port_rand funtion to allow to set the seed.
1809    o fix obscure MNC bug involving conversion between reals and integers
1810      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1811        new version is now more standards-compliant
1812    o adjoint-related modifications
1813      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1814      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1815      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1816    
1817    checkpoint57e_post
1818    o Adding eddy stress controls a la Ferreira et al.
1819    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1820    
1821    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1822      update output.txt of exp. fizhi-gridalt-hs
1823    o add more "Z" dimensions and associated coordinate vars to MNC
1824    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1825    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1826      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1827      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1828      months and years.  Requires pkg/cal.
1829    o diagnostics: add pickup functionality
1830      - off by default for backwards compatibility
1831      - current version only uses MDSIO -- MNC will be added
1832    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1833    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1834    
1835    checkpoint57d_post
1836    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1837    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1838      output from the diagnostics package
1839    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1840    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1841      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1842    o add coordinate variables to the MNC output from the diagnostics package
1843    o change MNC-flags default value: true when useMNC=TRUE
1844    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1845      the ability (off by default) to read the grid information using MNC
1846    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1847    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1848    o do snap-shot diagnostics at the middle of the time-interval (instead of
1849      at the end).
1850    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1851      new test for AIM with thSIce + slab-ocean
1852    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1853    o move state variable diagnostics to the beginning of the time step ;
1854      (note: still needs some work specially for snap-shot diagnostics)
1855      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1856    
1857    checkpoint57c_post
1858    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1859    o generate new output.txt files on faulks with g77 & the new -ieee option
1860    checkpoint57c_pre
1861    
1862    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1863      update output.txt of exp. global_ocean.90x40x15
1864    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1865      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1866    o add saltFlux(+File) forcing capability with periodicExternalForcing
1867    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1868    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1869    o improvements for the MNC output from DIAGNOSTICS:
1870      - correct handling of the unlimitied dimension
1871      - all dims now have associated coordinate variables
1872      - variables located at U, V, and Corner ("Z") points are now written
1873        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1874        *all* data points are output
1875    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1876    o added pkg/seaice/seaice_monitor.F
1877    o mdsio_readfield.F can now read files visible only to master MPI process.
1878    o pkg/seaice: some test code for ice-modified ocean stress
1879    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1880      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1881      spurious negative numbers for precipitation and humidity.  Will cause
1882      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1883    o pkg/ctrl/
1884      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1885        May be enabled via doPackDiag
1886      *  introduce z-scaling of
1887         + gradient (doZscalePack) and
1888         + control (doZscaleUnpack)
1889    o pkg/mdsio/
1890      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1891      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1892    
1893    checkpoint57b_post
1894    o simplify options in diagnostics_fill arguments (remove weird combinations)
1895    o fix MNC coordinate variables so that they now contain per-face index
1896      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1897      general, EXCH2 grids are only aligned to a "local" coordinate system
1898    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1899    o Implement instantaneous output within pkg diagnostics:
1900      setting a negative frequency in data.diagnostics produces
1901     "snap-shot" output (as opposed to time-average if freq > 0)
1902    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1903      NOTE: change ptracer diagnostics name: use 2 characters to work with
1904            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1905    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1906      becomes the coordinate variable for the 'T' dimension
1907    o add CF-style coordinate variables to MNC
1908      - just a first cut:  numbers are meaningless on the cubesphere and
1909        missing along the T axis but otherwise it works!
1910    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1911    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1912    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1913      this is based directly on what the model compute, so that the content of
1914      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1915    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1916    o clean up build options files for SunOS, in particular
1917      - remove -traditional from xmakedepend
1918      - change -xarch=v9 to -xarch=native for f77
1919      - restore use of make (not gmake)
1920      - add CC=gcc if using g77
1921    o changes per discussion of AM, JMC, & EH3 today:
1922      - move redundant "grid" variables out of "state" -- in preparation of
1923        creating proper CF-style coordinate variables and in recognition
1924        that any/all grid variables can be easily copied (eg. w/NCO) from
1925        the grid files into any of the other NetCDF files
1926      - *always* output grid variables with MDSIO (this will eventually be
1927        changed)
1928      - output MNC grid file if useMNC is true
1929    o every instance of _END_MASTER() has been found and replaced with
1930      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1931      preprocessors
1932    o re-arrange diagnostics pkg initialisation:
1933     - allow each package to extend the available diagnostics list
1934     - add some checking and fix small problems (multi-threaded, ...)
1935     - new S/R diagnostics_fill (replace fill_diagnostics):
1936       look through the short list of active diag. (instead of the long list)
1937       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1938    
1939    checkpoint57a_post
1940    o this set of changes restores TAMC compatibility
1941      tested for global_ocean.90x40x15 adjoint on trough
1942      (what a pain)
1943    
1944    checkpoint57a_pre
1945    o some modifs in tools/build_options for sunos
1946    o call ctrl_pack for ctrl at end for optimcycle=0
1947    
1948    checkpoint57
1949    o add horizontal bi-harmonic viscosity for vertical velocity
1950      - new parameter viscA4W (defaults to viscA4)
1951      - affects only non-hydrostatic code
1952      - to be done: no-slip lateral boundary conditions
1953    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1954    o implement Implicit Vertical advection for pTracers
1955    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1956      (implemented also for implicit vertical diffusion & advection)
1957    o OBCS: extend application of tracer open boundary conditions
1958      to a strip beyond the boundary of width Olx/Oly
1959    o add call monitor to TAF set of required calls (flow directives)
1960      and include in natl_box_adjoint
1961    o untangle a few ifdefs related to cost, ctrl, autodiff
1962      untangel a few ALLOW_ECCO_OPTIMIZATION
1963    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1964      (theta2, salt2 in ecco_cost_weights)
1965    
1966    checkpoint56c_post
1967    o OBCS as control variables
1968      - update ctrl_ad_diff.list, obcs_ad_diff.list
1969      - remove balance of obcs controls from default
1970      - fix index bug nobcs in ctrl_init
1971      - fix dummy fields filen in ctrl_pack
1972      - add dummy weights for obcs
1973    o lsopt: comment out fort.94 output
1974    o optim:
1975      - remove unnecessary header files
1976      - adjusted namelists
1977      - add xerbla.F to Makefile
1978    o exf:
1979      - multiple modifications of exf_check_range
1980      - unit change in exf_init_runoff from [m/year] to [m/s]
1981    o mdsio:
1982      - i/o-vector change debugLevel from debLevA to debLevB
1983    
1984    checkpoint56b_post
1985    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1986      is called from DO_THE_MODEL_IO
1987      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1988      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1989      - clean up PTRACERS_WRITE_TIMEAVE a little
1990    o add another verification experiment that tests both the cfc-pkg and
1991      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1992      reactive tendencies treated inline with regular timestepping
1993    o testreport previously did a lousy job of comparing small numbers, so
1994      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1995      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1996      testreport.
1997    o ptracers_monitor: bug fix for MPI
1998    
1999    checkpoint56a_post
2000    o GCHEM: finish reorganizating the package
2001      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2002        (introduces another 3D-array for each passive tracer, but only if
2003        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2004        gchemTendency is not needed because the timestep is done separately)
2005      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2006      - GCHEM is now---more or less cleanly---separate from PTRACERS
2007      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2008        so clear to me how that should be done in a general way.
2009    o CFC: improve formatting of output in CFC_ATMOS
2010    o PTRACERS:
2011      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2012        that ALL experiments with ptracers enable can be checked. This makes
2013        GCHEM_MONITOR obsolete.
2014      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2015        monitorFreq
2016      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2017    o add PTRACERS (PTR0[1-5]) to testreport output
2018    o exf_check_range:
2019      * default changed to .TRUE.
2020      * will check values for niter0 if debLevA, every timestep if debLevB
2021      * STOP in exf_check_range if 'out of range'
2022      * range chosen generous to allow for potential extema
2023      TBD: a version with stricter range
2024           permitted range would be runtime parameters
2025    o GMredi:
2026      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2027      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2028      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2029    o GCHEM:
2030      - move call to GCHEM_FORCING_SEP, so that it is now called before
2031        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2032      - introduced a useGCHEM runtime flag and applied it everywhere.
2033      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2034        this flag is now only visible within GCHEM-pkg routines.
2035      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2036        be replaced by a 3D array that is computed before thermodynamics; for
2037        this, the tracer ID iTracer had to be included into the parameter list
2038        of ptracers_forcing
2039      - set up forward_step to call gchem_forcing, that will replace
2040        gchem_forcing_int in ptracers_forcing
2041      - cleaning up
2042    o small cleaning of exch2: remove files that are also in eesupp/src
2043    
2044    checkpoint56
2045    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2046    o mnc: cleanup "full" files--fixes out-of-memory problem
2047    o ECCO-GODAE
2048      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2049      * fully merged and updated from SIO code
2050        windstress sign change affects
2051        - exf_inscal_[u/v]stress
2052        - sign of xx_tau[u/v] adjustments
2053        - signs in cost_scat
2054      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2055      * natl_box_adjoint updated and compressed
2056      * 2-level checkpoint switch added
2057        (tested in EXP. 1 of natl_box_adjoint)
2058      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2059    o SVD
2060      * first complete, non-hacked version for SVD calculations
2061      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2062        performed via direct access files admtlm_vector.it????
2063        (via ctrl_[un]pack)
2064      * optimcycle is used for ARPACK iteration counter
2065        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2066      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2067        and add linear transforms where necessary
2068      * controls are initial/final SST, SSS (can be extended; need to check
2069        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2070    o mdsio: filename info to both stderr, stdout
2071    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2072      from sign change
2073    
2074    checkpoint55j_post
2075    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2076      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2077    o add consistent build directories and .cvsignore files to verification
2078    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2079    o make all subroutines 30 or less characters in length for certain older
2080      compilers to work (a thorough search only turns up two routines in
2081      pkg/ptracers)
2082    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2083      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2084    
2085    checkpoint55i_post
2086    o change arrays for total vertical diffusivity (2.D if explicit,
2087      3.D if implicit) ; each ptracer uses its own background value.
2088    o added mnc/NetCDF output capability to ocn_compon_interf
2089      - added bits to verification/cpl_aim+ocn so that it can run on
2090        ITRDA and other clusters without the mpirun "-wd" option
2091    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2092      configuration
2093    o give MNC the ability to create additional files rather than
2094      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2095      - the default is just less than 2GB which is a practical limit
2096        on many systems
2097    o Compute the non-local term using either KPP vertical diffusivity (=default)
2098       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2099    
2100    checkpoint55h_post
2101    o add verification test "vermix"
2102    o remove all the *_ioinc flags and replace with the single global
2103      outputTypesInclusive flag
2104    o allow to set a vertical profile of vertical diffusivity for T & S
2105    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2106    o useMNC moved from data.mnc to data.pkg
2107    
2108    checkpoint55g_post
2109    o Renaming carbon AD experiments to comply with testreport conventions
2110    o Updating adjoint of Held-Suarez hs94.1x64x5
2111    o Fixing directives for non-ECCO forward_step, after ECCO directives
2112      have been fixed to avoid recomp. of do_oceanic_phys
2113      Works well for global_ocean.90x40x15,
2114      but recomp. issue remains for carbon
2115    o Updating adjoint output for natl_box_adjoint after
2116      pkg/ecco has been modified (see taga c55d_post)
2117    
2118    checkpoint55f_post
2119    o rename to timeave_init_fixed
2120    
2121    checkpoint55e_post
2122    o some delicate re-shuffle of store directives to avoid one
2123      extra call of do_oceanic_physics
2124      affects ecco_the_main_loop.F, do_oceanic_physics.F
2125      checkpoint_lev1_directives.h
2126    o NB: this may break global_ocean adjoint temporarily,
2127      but it is clear how to fix it. Will do later, need this now.
2128    
2129    checkpoint55d_post
2130    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2131    o ecco_cost_weights is modified to 1x1 runs
2132    o modifs to allow observations to be read in as
2133      single file or yearly files
2134    o enable to read exf forcing fields as either
2135      single file or yearly files (flag useExfYearlyFields)
2136    checkpoint55d_pre
2137    
2138    o switch between 2-level and 3-level checkpointing
2139    o add ability of MNC to write local and "partial" (eg. 2D slices where
2140      the full 3D field is never actually stored) arrays to NetCDF files
2141      with the correct (that is, the complete multi-dimensional) set of
2142      array indicies
2143      - used in mom_vecinv() to write the diagFreq output
2144      - tested (demonstrated) in verification/aim.5l_cs
2145    o further mnc-ification
2146      - add verification/lab_sea to the list with mnc setups
2147      - fix undefined mnc v-names in cd_code
2148      - add kpp to mnc output (both snapshot and timeave)
2149    o non-hydrostatic code
2150      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2151        in calc_gw.F
2152      - defaults to viscAh
2153      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2154        friction or Leith) in non-hydrostatic mode, as long as there is
2155        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2156    o pkg/cost
2157      extend simple cost functions to treat time mean quantities
2158      (T,U,V) via cost_accumulate_state from cost_tile
2159    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2160        be 2 times larger than the minimum size the advection scheme requires.
2161        now get a perfect conservation of salt in advect_cs test-exp (updated)
2162    o GGL90 (Gaspar's TKE mixed layer)
2163      - add horizontal diffusion of TKE, requires exchanges in
2164        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2165        default. In OPA there is no horizontal diffusion of TKE but the
2166        mixing coefficients are computed from a horizontal average of TKE of
2167        6 points or so. I think that diffusion has a little more physical
2168        justification.
2169      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2170        was in vain)
2171      - mask tke-variable in ggl90_init
2172    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2173    o fix biharmonic diffusion on CS-grid.
2174    o more obcs stuff
2175      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2176        for reading boundary values. This routine is called from
2177        obcs_prescribe_read
2178      - updated obcs_check
2179      - changed sponge layer relaxation parameter units for days to seconds
2180      - turned off sponge layer by default
2181      - changed argument list of OBCS_CALC to myTime+deltaTclock
2182      - fixed about 35 bugs in obcs_external_fields_load
2183    
2184    checkpoint55c_post
2185    o obcs stuff
2186      - new runtime flags useOBCSprescribe, useOBCSbalance
2187      - re-arranged obcs_calc
2188      - moved exf_getobcs to obcs_prescibe_read
2189        obcs_prescibe_read is called after ORLANSKI stuff
2190        and independent of it (executable can contain all).
2191      - updated obcs_check
2192      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2193        These may be necessary only if tangential velocities are
2194        prescribed at OB, not sure, needs testing.
2195    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2196      which simplifies the calls and passes the ifc check-bounds test
2197    
2198    checkpoint55b_post
2199    o add a 2D scalar, Z location, exchange_2 routine.
2200    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2201      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2202      affects advect_cs results (for the wrong reason): update output.txt
2203    o use a more standard discretization for biharmonic viscosity ;
2204     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2205      affects results of dome set-up: update output.txt
2206    o fix gad_advection.F (CubedSphere part), back to version 1.23
2207    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2208    
2209    checkpoint55a_post
2210    o merged code to
2211      * prescribe/read time-dependent open boundaries
2212        (works in conjunction with exf, cal)
2213      * sponge layer code for open boundaries
2214      * each boundary N/S/E/W now has its own CPP option
2215        (healthy for the adjoint)
2216    
2217    checkpoint55
2218    o up-to-date adjoint of previous breaks
2219      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2220      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2221      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2222      - carbon: * remove tr1-related adjoint verification
2223                * add ptracer as control variable
2224    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2225      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2226    
2227    checkpoint54f_post
2228    o in verification/carbin/ remove experiment related to
2229      ALLOW_PASSIVE_TRACER (array tr1 etc)
2230      code_ad/ input_ad/ results_ad
2231    
2232    o add two new packages
2233      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2234        + subject to optimization (memory)
2235      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2236        + subject to reordering (many GOTOs in the original code)
2237        + so far opps is called for every (i,j) point, and then operates in
2238          the vertical; one may want to reorder the scheme in order operate in
2239          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2240          fields)
2241    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2242      - all verification tests compile and run with linux_ia32_g77
2243      - defaults are compatible with current input files--nothing
2244        should change if you were not previously using MNC
2245      - MNC output has been added in numerous places (eg. timeave)
2246        but there are still a few writes not yet do-able with MNC
2247        (this is in progress)
2248      - flags now allow for either/or/both use of MDSIO and MNC and
2249        documentation will soon follow
2250      - numerous small formatting cleanups for ProTeX
2251    o add version info (via BUILD_INFO.h) to MNC and stdout
2252    
2253    checkpoint54e_post
2254    o add two new packages
2255      - pp81 (Packanowski and Philander, 1981), Richardson number and
2256        stratification dependent mixing
2257      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2258      - these scheme operate in a similar manner as KPP (without ghat, of
2259        course), however there is only one diffusivity that is used for both
2260        temperature and salinity (and passive tracers)ç
2261    o add offline package
2262    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2263      provided by Stephanie Dutkiewicz
2264    o genmake2: add ability to search for C compilers and cleanup test output
2265      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2266    
2267    checkpoint54d_post
2268    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2269    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2270      leading to additional shift by 5 days each year of integration
2271       (i.e. leading to considerable offset over the years)
2272    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2273    o start with no AB and no initial filtering (staggerTimeStep):
2274      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2275    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2276      (external loading & cpl import/export stay in forward_step.F)
2277    o update coupling interface to work with new staggerTimeStep
2278    o change MDSIO ptracers_pickup.
2279    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2280    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2281    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2282    
2283    checkpoint54c_post
2284    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2285      this affects (truncation error) output.txt of test-exp:
2286       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2287    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2288    o change Qnet to always be the net heat flux, (+upward).
2289      affects (truncation error) output of natl_box exp.: updated
2290    o define the max number of passive tracers in PTRACERS_SIZE.h
2291    o start to test mnc routinely in exp0
2292    o add sea-ice loading (sIceLoad) as a new forcing field.
2293    
2294    checkpoint54b_post
2295    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2296       impressive on Altix and Opteron systems)
2297    o diagnostics can now write NetCDF files through the mnc package
2298    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2299    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2300    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2301      affects (truncation error) output of lab_sea & natl_box exp.: updated
2302    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2303    
2304    checkpoint54a_post
2305    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2306    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2307    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2308    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2309      + internal_wave (shift in writing cg2d_ini_res)
2310    checkpoint54a_pre
2311    
2312    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2313      - modified verification/lab_sea and natl_box_adjoint accordingly
2314    
2315    checkpoint54
2316    checkpoint53g_post
2317    o prepare splitting of thermodynamics: store convect.counter in common block
2318    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2319      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2320    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2321    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2322    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2323    o restore adjointability
2324    
2325    checkpoint53f_post
2326    o modifications that affect AIM experiment results (update output.txt):
2327      - no advection of S at top interface Nr (pkg/generic_advdiff)
2328      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2329    o AIM pkg:
2330      - include stability function into surf.Flux derivative relative to Tsurf
2331      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2332    
2333    checkpoint53e_post
2334    o merged cylindrical coord configuration
2335    o added rotating_tank experiment
2336    checkpoint53e_pre
2337    
2338    checkpoint53d_post
2339    o faulks upgraded: re-generate output.txt that have changed:
2340       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2341    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2342    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2343    o added Sadourny discretization of Coriolis
2344      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2345      - re-enabled use of omega3 (useAbsVorticity)
2346    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2347      vector-invariant equations
2348      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2349    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2350      hopefully without new bugs
2351      - still to do: biharmonic friction for non-hydrostatic w
2352    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2353    o regenerated output for global_ocean_ebm (using -ieee)
2354    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2355      of mom_common/
2356      - simple re-arrangement of instructions within computing loop
2357    checkpoint53d_pre
2358    
2359    checkpoint53c_post
2360    o new version of coupler for AIM+thSIce and Ocean models
2361     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2362     - land: change Evaporation of snow
2363     - aim with thSIce: fix bug in snow-precip.
2364    o changes to calc_gw.F
2365     - bug fix for w^2 term near the bottom boundary
2366     - (hopefully) improve the lateral slip boundary condtions for use with
2367        partial/looped cells
2368      - because the bug fix changes two verification experiments anyway (exp5
2369        and plume on slope), change the lateral boundary condition from half slip
2370        to the value of no_slip_sides
2371    o ebm package wasnt quite up to the parallel task. Fixed that.
2372    o Adjoint of EBM package + verification
2373      * TLM OK
2374      * ADM not sufficient accuracy yet (needs further testing)
2375    
2376    checkpoint53b_post
2377    o Commiting new energy balance model to repository
2378      * package is pkg/ebm
2379      * verif. is verification/global_ocean_ebm
2380      * references are in ebm_driver.F
2381    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2382    C        Global thermohaline circulation. Part I:
2383    C        Sensitivity to atmospheric moisture transport.
2384    C        J. Climate 12(1), 71-82
2385    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2386    C        Global thermohaline circulation. Part II:
2387    C        Sensitivity with interactive transport.
2388    C        J. Climate 12(1), 83-91
2389    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2390    C        Destabilization of the thermohaline circulation
2391    C        by atmospheric eddy transports.
2392    C        J. Climate 7(12), 1870-1882
2393    o Will need long integration testing.
2394    checkpoint53b_pre
2395    
2396    o created pkg/mom_common in preparation for variable viscosity code
2397    o renamed and split ini_mnc_io
2398    o pkg/land: only liquid water can diffuse or run-off
2399    o AIM using land: soil wetness availability account for snow
2400    o added printMapIncludesZeros to EEPARMS namelist
2401    
2402    checkpoint53a_post
2403    o restore TAMC compatiility for exf_constants.h
2404      (no usage of _d in .h)
2405    o Additional storing in KPP in an attempt to fix
2406      TAMC problem with adjoint of KPP code.
2407      (no success...)
2408      Identical code works fine with TAF.
2409    o Fixed verification/natl_box_adjoint experiments.
2410      Initial conditions for Experiments 4 and 5 are now
2411      set to "SEAICE_initialHEFF=0", which is more reasonable,
2412      and hence gives results closer to that of Experiment 2.
2413      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2414    
2415    checkpoint53
2416    o stable checkpoint with up to date adjoint
2417      TLM tests only run for 1st grdchk at the moment. Its unclear if
2418      this is a code problem or a problem with resetting code for g_
2419      variables that is being autogenerated wrong.
2420      Otherwise:
2421       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2422       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2423         are both still in chaos following their security messes.
2424    
2425    checkpoint52n_post
2426    o various build (mostly genmake2) changes including:
2427      - ability to build/run more easily within Cygwin and MacOS X
2428      - more complicated Makefiles with a stronger dependence on Gnu Make
2429    o pkg/seaice modifications
2430      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2431        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2432        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2433      - changed proxy for geostrophic velocity and updated
2434        verification/lab_sea/results/* accordingly
2435      - removed ADI dynamic solver from pkg/seaice
2436      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2437        they caused a segmentation fault under certain circumstances
2438      - removed unused field WATR
2439    o bug fix in exf-package:
2440      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2441         now reflect that.
2442    o small fixes in the cal-package:
2443      - set reference date to first of January for the 'model'-calendar
2444      - failing of cal_CheckDate in cal_FullDate now actually results in a
2445        warning
2446    o small modifications in exf-package to increase flexibility:
2447      - change climtempfreeze from a constant to a runtime parameter that
2448        is specified in data.exf_clim (default = -1.9)
2449      - introduce runtime parameter windstressmax (default = 2.0) that is
2450        specified in data.exf
2451    o fix in pkg/thsice:
2452      - update Evap (Tsf changes) to be consistent with Latent heat flux
2453      - maintain snow precipitation unchanged (even if Tsf >=0).
2454     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2455    
2456    checkpoint52m_post
2457    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2458      this does not change any of the results, because myIter=0 in swfrac always
2459      lead to jwtype=2 (the default anyway), but the call makes little sense
2460      as a default
2461    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2462    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2463      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2464    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2465    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2466    o extending useSingleCpuIO option to work with new exch2 I/O format
2467      - old-style, missing-tile I/O is still accessible by defining CPP
2468        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2469    o monitor package can write to NetCDF files and/or STDOUT
2470    o fix re-definition bug in MNC_GRID_INIT_ALL()
2471    o doc/api_reference added
2472      - a framework for building an API Reference Manual using all
2473        the "protex" comments embedded in the code
2474      - see pkg/generic_advdiff, pkg/mnc for examples
2475    o MNC:
2476      - make myThid the last argument for all subroutines
2477      - new default for the grid files: NO halos
2478      - add useMNC and other run-time flags
2479      - separate per-file-group handling of the unlimited dimension
2480      - early initialization of MNC w/ flags read at the eeboot stage
2481        and lookup tables set in initialize_fixed
2482      - write all MNC output to a freshly-created directory
2483    o thermodynamics sea-ice (thsice) is now tested with testreport.
2484    o test exp. advect_cs: use the standard cs32 grid ; update output.
2485    o Added functionality to grdchk:
2486      pick global i,j,k position (or nearest wet) where to perform check.
2487    
2488    checkpoint52l_post
2489    o new land formulation:
2490      a) use ground enthalpy as prognostic variable to ensure exact
2491         energy conservation.
2492      b) account for water temperature and for latent heat of freezing
2493         in all processes (rain, run-off, ground storage)
2494      c) compute surface and ground temperature implicitly.
2495    o aim_v23 modification for new land model:
2496      a) Treat separately land / ocean / sea-ice surface fluxes
2497         to allow implicit computation of land & sea-ice surface temp.
2498      b) add snow precipitation.
2499    checkpoint52l_pre
2500    
2501    o fix problem (when 1 tile is empty) in min/max monitor.
2502    o fix bug in timeAve (u,vZetatave in common block)
2503    o no restoring terms under ice for pkg/seaice
2504    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2505    o bug fix for pkg/seaice pickups
2506    o change MNC call locations and add coordinate attributes
2507    o mask vorticity at the corner ; affects global_ocean.cs output
2508    o fix ini_curvilinear_grid ; test CS experiments with mpi
2509    o aim.5l_cs: modify sea-ice fraction input file ; update output
2510    o exf: Adding simple range check routine for exf fields after read
2511    
2512    checkpoint52k_post
2513    o removed top-level directory "diags"
2514      - we migrated these functions to pkg/timeave a long time ago
2515    o fixed bug introduced in pkg/monitor
2516    o accuracy ctrlprec = 32 insuffient for gradient checks using
2517      averaged fields (I/O via cost_averages)
2518      -> use ctrl.h in active_file*.F to control I/O precision.
2519    o paramter list of CALL ADTHE_MAIN_LOOP
2520    o added initial do_the_model_io to ecco
2521    o set all ...Freq to zero after cost_final
2522      taveFreq, dumpFreq, pChkptFreq
2523    o MAIN and ECCO differentiability restored
2524    
2525    checkpoint52j_post
2526    o fix nchklev in tamc.h for global_ocean...
2527    o Bringing flow and store directives up-to-date
2528    o Really weird thing!
2529      call do_the_model_io from the_main_loop with parameters
2530      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2531      TAF places a faulty re-call of initialise_varia
2532      after cost_final call which should not be there!
2533    checkpoint52j_pre
2534    
2535    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2536      error messages
2537    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2538    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2539      debug output
2540    o modfied mdsio_writefield.F to handle non-global files under exch2
2541    o update AIM Cubed-Sphere exp (aim.5l_cs):
2542      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2543    o update AIM Equatorial Channel exp:
2544      use standard aim_v23 pkg and change the SST fields to be more realistic.
2545    o globalFile now works with exch2
2546    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2547      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2548    o limit timeave output for hi-res integrations
2549    
2550    checkpoint52i_post
2551    o removed CPP_EEOPTIONS.h from verification/*/code
2552    o updated the tiling for global_ocean_pressure
2553    checkpoint52i_pre
2554    
2555    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2556      the old pkg/aim).
2557    
2558    checkpoint52h_pre
2559    o shortened offending lines in exch2_send_rx?.template
2560    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2561    o genmake2: add build & execute test for NetCDF code
2562    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2563      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2564    o added useSingleCPUIO flag to monitor.F and mon_out.F
2565    o added temporary hack for sea-ice dynamics on the cube:
2566      metric terms are ignored and it is assumed that
2567      there is no sea-ice on cube faces 1, 2, 4, and 5.
2568    
2569    checkpoint52f_post
2570    o added exch2 cube routines to pkg/exch2
2571    o modified hs94.cs-32x32x5 to use it
2572    o added new grid files to hs94.cs-32x32x5
2573    checkpoint52f_pre
2574    
2575    checkpoint52e_post
2576    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2577      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2578    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2579      to work with implicit vertical advection and AB ;
2580    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2581    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2582     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2583    checkpoint52e_pre
2584    
2585    o fix bug in impldiff when Nr=1 or Nr=2.
2586    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2587    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2588    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2589      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2590    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2591    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2592    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2593    
2594    checkpoint52d_post
2595    o re-tiled many expts to allow comparison in multi-processor mode
2596      - updated output accordingly
2597      - changed hs94.128x64x5 to use intial T from file rather than use the
2598        random number generator
2599    o add infrastructure in model routines for fizhi and gridalt packages
2600    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2601    o changes to permit hi-res, cubed-sphere, configuration
2602      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2603      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2604      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2605        of surface winds for the cube
2606      (A verification experiment, based on global_ocean.cs32x15, but with
2607       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2608       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2609       complete with example surface forcing files and matlab scripts to look
2610       at the output and compare it with that of global_ocean.cs32x15.)
2611    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2612       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2613       to conform to the common rule.
2614    o check-in the first version of the coupler + interfaces for multi-components
2615       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2616       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2617       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2618       - ocean and atmos. share the same horizontal grid (no interpolation).
2619       - exchanges between component and coupler is done in forward_step
2620    o new verification experiment, cpl_aim+ocn:
2621       coupled ocean - AIM atmosphere on cs32 grid.
2622    
2623    checkpoint52d_pre
2624    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2625    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2626    
2627    checkpoint52c_post
2628    o Fixing OPTIONS files for use of exf:
2629      - ALLOW_ECCO not needed
2630      - ECCO_CPPOPTIONS.h should not be included from
2631        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2632        as has been the case in the past
2633      - All cal/exf related options are currently set in
2634        single header file. Should remain so until we
2635        agree on a consistent new policy.
2636    o Removed all CPP options for cal package.
2637      cal has no more CPP options.
2638    o modified STOREs in GAD_ADVECTION
2639    o corrected key comp. for passkey
2640    
2641    checkpoint52b_post
2642    o new version: "thsice" of thermodynamic sea-ice pkg:
2643     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2644     - modify fluxes but do not change theta directly;
2645     - light cleaning of bulk_force pkg (still needed with thsice).
2646     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2647       + output_thsice.txt to test thsice & bulk_force pkgs.
2648    o put back grid & coriolis monitor output.
2649    checkpoint52b_pre
2650    
2651    o call "do_the_model_io" at the beginning (=> dump initial state)
2652    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2653    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2654      (need info on NUMBER_OF_PTRACERS)
2655    o missing PTRACERS headers in some routines
2656    o default tamc.h in pkg/autodiff supposed to crash
2657      to ensure proper customization
2658    
2659    checkpoint52a_post
2660    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2661      - moved surfaceTendencyTice from pkg/seaice to main code
2662      - subroutine FREEZE_SURFACE now limits only surface temperature
2663        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2664        => new output.txt for global_ocean.cs32x15 & global_with_exf
2665      - keep the old version of FREEZE for backward compatibility;
2666        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2667      - corresponding modifs for TAF directives
2668    o added surface flux output variables to TIMEAVE_STATVARS
2669    o time-averaged output for pkg/ptracers
2670    o fix problem with ECCO-related divided adjoint
2671      snapshot file was missing some ad-variables,
2672      but no warning issued by TAF
2673    
2674    checkpoint52a_pre
2675    o some bug fixes for #undef REAL4_IS_SLOW
2676    
2677    checkpoint52 = ecco_c52_e35
2678    o after testing adjoints of checkpoint51u_post
2679    
2680    checkpoint51u_post
2681    o this is the post-merge tag of the ecco-branch
2682      (needs another clean checkout and re-testing)
2683    o various natl_box_adjoint configs and results
2684      but no input fields
2685    o obcs adjoint not yet merged!
2686    o adding ECCO global 1x1 and 2x2 degree configs
2687    o updated/extended some store directives for seaice
2688    o pkg/ecco now containes ecco-specific part of cost function
2689    o top level routines the_main_loop, forward_step
2690      supersede those in model/src/
2691      previous input data.cost now in data.ecco
2692      (new namelist ecco_cost_nml)
2693    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2694    
2695    checkpoint51t_post
2696    o this is the pre-merge tag of the ecco-branch
2697    
2698    checkpoint51s_post
2699    o cleanup: removed various obsolete #define-s
2700    o pkg/grdchk
2701      - renamed 'ph-grd 3' to 'grad-res'
2702      - merged from ecco-branch
2703        (remaining bug fixes for obcs gradient checks)
2704      - additional high-precision output for testreport
2705        (grep for 'precision_grdchk_result')
2706    
2707    checkpoint51r_post
2708    o cleaned up or removed CPP_OPTIONS.h files
2709    o updated results for some of the tests to reflect the new
2710      optfiles (-ieee: -O0 instead of -O3)
2711    
2712    checkpoint51q_post
2713    o cd_code:
2714      - moved cd_scheme.F -> cd_code_scheme.F
2715      - separate read_checkpoint from cd_code_ini_vars.F
2716      - separated cd_code part from write_checkpoint
2717      - updated AD_SOURCE, generated .flow
2718      - added CD_CODE_VARS.h to the_main_loop
2719      - Moving cd_code specific store dir.s to pkg/cd_code
2720    o ctrl package totally restructured
2721      - pack/unpack now optional and decoupled from
2722        xx_/adxx_ I/O
2723      - ctrl_pack/unpack cleaned
2724        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2725      - confined inclusion of AD_CONFIG.h to where necessary.
2726    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2727    
2728    checkpoint51p_post
2729    o create initial cd_code package
2730      - WARNING: the initialization of fields within packages
2731        is broken because INI_FIELDS (where READ_CHECKPOINT is
2732        called) is called *before* PACKAGES_INIT_VARIABLES.
2733        This seems to be backwards since
2734        1) its important to initially zero the entire field including
2735           the "halo" region
2736        2) zeroing needs to be done *before* reading pickup info
2737           and the pickup call might or might not happen in any
2738           particular run
2739      - this needs an overhaul for R2
2740    o cleanup verification/*/code/GMREDI_OPTIONS.h
2741    o cleanup testreport
2742    
2743    checkpoint51o_post
2744    o bringing AD-related verif's up to date with genmake2
2745      - carbon/
2746      - global_ocean.90x40x15/
2747      - hs.94.1x64x5/
2748      - (front_relax/ )
2749    o (more) consistent directory structure for AD-related verif.'s
2750    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2751    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2752    o bug fix in find_alpha.F for MDJWF:
2753      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2754        change rho -> rho-rhoConst
2755      - replace call find_rho to find_rhonum
2756    o initialisation of rFlx extended to full array (required by TAF)
2757      and shifted to thermodynamics
2758    o removed PTRACERS.h in ptracers routine
2759    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2760    o Correcting initialisations for fVerU, fVerV.
2761    o helping TAF to recognize dependency on kUp for
2762      fVerU, fVerV
2763    o Replacing delZ by delR in pkg/ctrl/
2764    checkpoint51o_pre
2765    
2766    o undid all of cp51 pending some cleanups and discussion
2767    o added the [#include "AD_CONFIG.h"] statement to all files that need
2768       it for adjoint/tl #defines
2769     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2770     o removed tools/genmake since it no longer works
2771    
2772    checkpoint51n_post
2773    o modifications to make FREEZE flux visible to pkg/kpp
2774      - moved surfaceTendencyTice from pkg/seaice to main code
2775      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2776      - subroutine FREEZE now limits only surface temperature
2777        (this means new output.txt for global_ocean.90x40x15,
2778         global_ocean.cs32x15, and global_with_exf)
2779    o added surface flux output variables to TIMEAVE_STATVARS
2780    
2781    checkpoint51n_pre
2782    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2783    o added [#include "AD_CONFIG.h"] to all files that use the following
2784      defines:
2785      - ALLOW_ADJOINT_RUN
2786      - ALLOW_TANGENTLINEAR_RUN
2787      - ALLOW_ECCO_OPTIMIZATION
2788    
2789    checkpoint51m_post
2790    o incorporating changes to get TAMC/TAF working in genmake2
2791      - added new TAMC/TAF targets to the Makefile
2792      - various cleanups related to package handling
2793      - these changes should have no impact on the forward model
2794    
2795    checkpoint51l_post
2796    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2797     - faster algorithm for cal_addtime.F
2798     - higher precision arithmetic, where needed
2799     - pkg/exf *startdate variables changed from calendar date to
2800       model integration time
2801    
2802    checkpoint51l_pre
2803    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2804    o enable to apply restoring on S & T only in a latitude band.
2805    o update output (external_forcing_surf modif. change truncation errors)
2806       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2807    
2808    checkpoint51k_post
2809    o change default to: useNHMTerms=.FALSE.
2810     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2811       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2812     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2813        exp1, ideal_2D_oce
2814     - change data file of oceanic exp (leave the results unchanged for now)
2815       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2816    o set gravitySign automatically according to the vertical coordinate used
2817      (and change sign: back to "logical" value: +1 when R increases downward)
2818    o added an include barrier to the default CPP_OPTIONS.h and
2819      removed the #include "PACKAGES_CONFIG.h" from it
2820    o fix a bug in mom_fluxform (from chk51j_post)
2821    
2822    checkpoint51j_post
2823    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2824    o adjusted some flow directives (dynamics, thermodynamics)
2825    o added cubed-sphere case to test cost function
2826    o heckpoint_lev?_directives.h now include
2827      pkg-specific directives, whenever those are enabled.
2828    o Moving pkg-specific flow directives to corresponding pkg
2829      Moving pkg-specific differentiation list to corresponding pkg
2830      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2831      ---> conventions are
2832           - pkg_ad.flow
2833           - pkg_ad_diff.list
2834           - pkg_ad_check_lev?_dir.h
2835    
2836    checkpoint51i_post
2837    o merge of the branch-genmake2
2838      - knowingly breaks the older genmake
2839      - automatic generation of all ALLOW_${PKG_NAME} defines
2840      - new testreport supersedes older testscript
2841    o large number of package inclusion and header cleanups
2842    checkpoint51i_pre
2843    
2844    o new output for adjoin of global ocean vector invariant
2845    o fix for checkpoint of thermodynamic seaice and bulk_force
2846    o Steph gchem various cleanups
2847    
2848    checkpoint 51h_pre
2849    o fixed some single quotes
2850    o modify gchem pkg to be more versatile
2851    o modifications to clean up dic pkg
2852    o add pkg/cfc
2853    
2854    checkpoint51g_post
2855    o provide links for ARPACK and ADM*TLM
2856    o start removing verification/vero/
2857    o update AD-related stuff
2858      (in particular some IF-statements in model/src/ routines)
2859    o adding to verification/global_ocean.90x40x15/ adjoint of
2860      vector invariant setup
2861    
2862    checkpoint51f_post
2863    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2864    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2865      of tracer Green's fucntions for ocean inversion project.
2866    
2867    checkpoint51f_pre
2868    o Added on-the-fly spatial interpolation capability
2869        "USE_EXF_INTERPOLATION" to pkg/exf.
2870      - This is a temporary Cartesian-grid hack until
2871        the super-duper ESMF coupler becomes available.
2872      - See verification/global_with_exf/README for usage example.
2873      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2874        flags and modified pkg/seaice accordingly.
2875    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2876        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2877        non-local transport term.
2878    
2879    checkpoint51e_post
2880    o pkg/mom_vecinv:
2881      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2882      - add time-ave diagnostic of vorticity advection.
2883    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2884    o atmospheric geopotential: - include water vapor effect;
2885                                - use p^kappa in p* scaling.
2886    o land pkg: read initial state from files.
2887    o AIM : add stratospheric drag in the upper level
2888    
2889    checkpoint51d_post
2890    o change function ILNBLNK (=> last non-blank char.) to return zero
2891      (instead of the string length) when the string. char is empty
2892    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2893    o modif's to restore TAMC compatibility
2894      - avoid "_d" constructs in PARAMETER declarations
2895      - avoid interrupting lines by comment lines
2896    o Use cluster local disks for purely local I/O
2897      vs. globally visible disks needed for ctrl stuff
2898      (merged from ecco-branch)
2899      - new active_file_loc... and mdsio_..._loc routines
2900      - affected packages: autodiff, ctrl, grdchk, mdsio
2901    
2902    checkpoint51c_post
2903    o introducing integer flag debugLevel
2904      - debLevZero: suppress all output
2905      - debLevA: standard
2906      - debLevB: equivalent to current debugMode=.TRUE.
2907    o introducing pathname variable mdsioLocalDir for mdsio
2908      that can be specified at runtime
2909      (relevant for cluster I/O to local disk)
2910    `
2911    >>>checkpoint51b_post
2912    adjoint of ptracers
2913    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2914    o extended state in checkpoint_lev?, etc.
2915    o alternative ctrl/cost with tr1 or ptracer
2916    o new comlev1_bibj_ptracers
2917    o new ptracers.flow
2918    o made ptracers_forcing same as external_forcing_s
2919    o added verification for adjoint with ptracers
2920      - adm. grdchk fail so far
2921      - tlm. grdchk OK
2922      - checked tapelev/comlev recomputations: OK
2923    <<<checkpoint51b_pre
2924    
2925    checkpoint51a_post
2926    o added code for biogeochemistry package
2927      - new pkgs: dic, gchem
2928      - new subroutine in ptracers
2929    o modify code for biogeo packages
2930      - in model/src and pkg/ptracers
2931    
2932    checkpoint51
2933    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2934      - autodiff, ctrl, exf, grdchk, seaice
2935      kept separate packages
2936      - cost, ecco, obcs
2937    o updating verification/internal_wave, verification/lab_sea
2938      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2939    
2940    checkpoint50i_post
2941    o Preparing next differentiable checkpoint and sync
2942      of MAIN vs. ecco-branch
2943      - 1st step: this one is differentiable
2944      - 2nd step: next(! not this) checkpoint will have updated packages
2945                  from ecco-branch)
2946    
2947    checkpoint50h_post
2948    o new package "land": provide surface BC for AIM.
2949    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2950    o AIM: use true log-P extrapolation for near surface temp (= as in
2951        F.Molteni paper) ; update aim.5l_cs output.
2952    o New variable in PARM03 for more flexible pickups
2953    o somewhat cleaned package initialisation sequence for
2954      ctrl/ cost/ ecco/ in packages_... routines
2955    
2956    checkpoint50g_post
2957    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2958      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2959      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2960        made the default because of faster convergence than ADI
2961    
2962    checkpoint50f_post
2963    o exf totally restructured
2964      - replaced all exf_set_ routines by one generic exf_set_gen.F
2965        and made sure it's still differentiable
2966      - split exf_getffields.F into new exf_bulkformulae.F
2967      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2968      - updated adjoint/makefile and relevant verif. accordingly
2969    
2970    checkpoint50f_pre
2971     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2972          + change Evap over land. (update aim.5l_cs output)
2973     o added missing .cvsignores and made uniform across expts
2974     o changed configuration of tidal_basin_2d expt
2975     o added pkg/debug functions for tracing code in fatal crashes
2976     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2977     o new fn in pkg/monitor to stop model if solution grows too big
2978     o removed lots of single quotes from comments
2979    
2980    checkpoint50e_post
2981    o make KPP work with PTRACERS
2982     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2983       nearly a copy of kpp_transport_s
2984     - there is no analogue to SurfaceTendencyS, so I have to use
2985       gPtr(of the surface layer) instead
2986    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2987    checkpoint50e_pre
2988    
2989    checkpoint50d_post
2990    o change kpp output from multiple-record state files to single-record state
2991      files analogous to write_state.F
2992    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2993      analogous to the cg2d-related output.
2994    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2995      so that writing to internal file fn (with length 512) fails.
2996    checkpoint50d_pre
2997    
2998    checkpoint50c_post
2999    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
3000    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
3001    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
3002    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
3003    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
3004    
3005    checkpoint50c_pre
3006    Merging from release1_p13:
3007    o bug fix for pkg/seaice dynamic solver
3008    o Added SEAICE_initialHEFF to pkg/seaice
3009    
3010    checkpoint50b_post
3011    o store u*,v* in gU,V instead of in guNm1,gvNm1
3012    o in order to put the momForcing out of the Adams-Bashforth:
3013      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
3014      to timestep.F
3015    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
3016    o re-generate output for highly sensitive test-exp:
3017       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
3018    
3019    checkpoint50b_pre
3020    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
3021    o corrected CPP option mismatch in exf_Bulk... functions for case
3022      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
3023    
3024    checkpoint50a_post
3025    o Bug fix for merging between c50 and KPP.
3026      ikey was passed from thermodynamics to kpp_calc via
3027      common block rather than being recomputed in kpp_calc,
3028      in contradiction with new key itdkey.
3029      New key ikppkey created, and tamc.h headers updated.
3030    
3031    checkpoint50
3032    - 2nd step of merge with ecco-branch:
3033      merge changes in ecco-branch back into main trunk
3034    - bug fix in find_alpha
3035    - more storing in gmredi_calc_tensor.F, kpp_routines.F
3036    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
3037    - merged some sliced AD support routines
3038    
3039    checkpoint49
3040    merged from ecco-branch:
3041    o exf:
3042      - Enable initialisation of forcing fields to constant
3043        (runtime) values.
3044      - in exf_getffields.F
3045        Reduce i-/j-loop to interior domain, discarding overlaps.
3046        That also fixes wrong TAF-key computations for key_1, key_2
3047        with bulf formulae.
3048      - exf_init.F modify #ifdef for exf_init_evap
3049      - exf_getffieldrec.F, ctrl_getrec.F
3050        The following INT-usages are not safe:
3051          fldsecs  = int(fldsecs/fldperiod)*fldperiod
3052          fldcount = int(fldsecs/fldperiod) + 1
3053        and were modified.
3054    o autodiff: checkpoint_lev...
3055      - updated storing for bulk formulae (some arrays were missing)
3056      - added state for seaice package
3057      - synchronized with main branch
3058    o DIVA:
3059      Modif.s in
3060      - the_main_loop.F
3061      - the_model_main.F
3062      and added cost_final_restore.F cost_final_store.F
3063      o With these changes, it is possible to fully separate
3064        the first forward run to compute the cost function (mdthe_main_loop)
3065        and adjoint runs over individual DIVA intervals (adthe_main_loop)
3066        into separate model executions.
3067        This enables better tuning of DIVA to given queue sizes.
3068      o Loss of cost function value in consecutive DIVA runs is
3069        fixed by storing to 'costfinal' file.
3070      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
3071        beginning/end of adjoint integration is accounted for.
3072      The current changes apply to TAF-1.4.26.
3073      TAF has one remaining bug, requiring one manual change
3074      (see MITgcm manual).
3075    o cal: synchronized between MAIN and ecco-branch
3076    
3077    checkpoint48i_post
3078    o Changes to restore differentiability of code w.r.t. previous tag
3079      (mostly adding new routines to make list and replacing
3080      pressure by totPhiHyd).
3081    o Updated and merged grdchk package
3082      - has both ADM and TLM checks
3083      - works for single- and multi-proc.
3084      - output cleaned
3085      - worked successfully for parallel DIVA
3086    o genmake:
3087      - Adding -platform=SP4
3088      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
3089    o Modif. for DIVA:
3090      ctrl_unpack should not be called in intermediate DIVA interval.
3091      (similar thing would apply for active files such as
3092      tbar, sbar, psbar, which should not be reinitialised;
3093      only relevant for ecco-branch)
3094    
3095    checkpoint48h_post
3096    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
3097    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
3098    o Added SEAICE_initialHEFF to pkg/seaice
3099    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
3100    
3101    checkpoint48g_post
3102    --- EOS:
3103    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
3104      store total Potential in totPhyHyd for diagnostics & EOS.
3105    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
3106    --- Pressure/geopotential gradient:
3107    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
3108    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
3109      ( changes results of global_ocean_pressure )
3110    o NLFS + z-coord.: add eta*Rho' contribution.
3111    o accurate phiHyd when using interface-W at the middle between 2 centers
3112     ( changes results of ideal_2D_oce )
3113    o includes r* 2nd term in potential gradient.
3114    
3115    checkpoint48f_post
3116    Merging from release1_p12:
3117    o Modifications for using pkg/exf with pkg/seaice
3118      - improved description of the various forcing configurations
3119      - added basic radiation bulk formulae to pkg/exf
3120      - units/sign fix for evap computation in exf_getffields.F
3121      - updated verification/global_with_exf/results/output.txt
3122    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
3123      (SBO) core products, including oceanic mass, center-of-mass,
3124      angular, and bottom pressure (see pkg/sbo/README.sbo).
3125    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
3126      to avoid negative values in shallow regions.
3127      - updated verification/natl_box/results/output.txt
3128      - updated verification/lab_sea/results/output.txt
3129    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
3130    o Added useSingleCpuIO option (see PARAMS.h).
3131    o Updated useSingleCpuIO option in mdsio_writefield.F to
3132      work with multi-field files, e.g., for single-file pickup.
3133    o pkg/seaice:
3134      - bug fix in growth.F: QNET for no shortwave case
3135      - added HeffFile for specifying initial sea-ice thickness
3136      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
3137    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
3138      kpp_transport_t.F, forward_step.F, and the_main_loop.F
3139    o pkg/seaice:
3140      - adjoint-friendly modifications
3141      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
3142    
3143    checkpoint48e_post
3144    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
3145    o dynamics: change definition of computational domain & adapt mom_fluxform
3146      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
3147    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
3148        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
3149        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
3150        global_ocean.90x40x15 global_with_exf global_ocean_pressure
3151        inverted_barometer solid-body.cs-32x32x1
3152      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
3153    
3154    checkpoint48d_post
3155    o in preparation for r*:
3156     a) use pre-computed gradient of hydrostatic potential:
3157        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
3158     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
3159        => affects results of glob_oce_pressure (different truncation error)  
3160      update output.txt of ideal_2D_oce & global_ocean_pressure
3161    
3162    checkpoint48d_pre
3163    o in preparation for r*:
3164      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
3165      pass the 2 comp. of the grad. as arguments to momentum S/R.
3166      but for the moment, only used if it does not change the results.
3167    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
3168    
3169    checkpoint48c_post
3170    Modifications in treatment of initial flux forcing controls
3171    to avoid extra storing of flux fields.
3172    
3173    checkpoint48c_pre
3174    o Added tidal_basin_2d experiment (currently 1D!)
3175    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
3176    
3177    checkpoint48b_post
3178    o r* coordinate added in #ifdef NONLIN_FRSURF block.
3179     (modification to pressure gradient not yet implemented)
3180    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
3181      (for U & V) that are used for vertical advection of momentum.
3182    
3183    checkpoint48a_post
3184    o In preparation for r*, use temp. array to compute vertical transport
3185       in flux-form momentum pkg. => change results of few test-exp.
3186      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
3187                        lab_sea, natl_box & plume_on_slope
3188    
3189    checkpoint48
3190    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
3191    
3192    checkpoint47j_post
3193    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
3194    o moved adexch from forward_step to addummy_in_stepping
3195    o added exch in ctrl_map_...
3196    o aveFreq.=0. at end of cost_final to avoid overwrite in
3197      reverse checkpointing loop
3198    o Yet more changes in gmredi:
3199      * adgmredi_calc_tensor
3200        avoiding all recomputation of gmredi_slope_limit
3201      * adgmredi_x/y/rtransport
3202        added flag for excessive storing to avoid recomp. of
3203        u/v/rtans, dTdx/y/z
3204        -> this is not really necessary and very memory-consuming
3205      * adgmredi_slope_psi:
3206        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
3207      * gmredi_slope_limit
3208        re-activated full calculation of taperfct for case 'ac02'
3209    o updating verification/ adjoints of carbon, global_ocean.90x40x15
3210    
3211    checkpoint47i_post
3212    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
3213    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
3214      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
3215    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
3216    o gmredi: fix few bugs.
3217    
3218    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
3219    This will be a good checkpoint to plug into the ecco-branch.
3220    o few modif.'s to get latest version adjointed
3221      (mainly kick out code in ini_linear_phisurf)
3222    o modif's to run adjoint with exactConserv
3223    o case GM_BOLUS_ADVEC should be cleaned
3224      S/R gmredi_slope_psi should be cleaned
3225    o verification/carbon now has exactConserv=.TRUE.
3226    
3227    checkpoint47g_post
3228    o time-average AIM output: becomes independent from statvars time-average
3229      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
3230    o After TAF bug fix:
3231      Tested adjoint of gmredi package.
3232      Tests were done with checkpoint47 rather than with latest
3233      checkpoint47f_post since the latter is broken for the adjoint
3234      verification/carbon/ contains both ADM and TLM gradient checks.
3235    Here they are, before they get changed/lost/stolen.
3236    Mostly modif.'s to fix numerical sensitivities.
3237    Gradient checks OK for
3238    - GM_taper_scheme:
3239      * clipping
3240      * ac02
3241      * linear
3242      * glw91
3243      * dm95
3244      * ldd97
3245    - GMREDI_OPTIONS:
3246      * GM_VISBECK_VARIABLE_K
3247      * GM_NON_UNITY_DIAGONAL
3248      * GM_EXTRA_DIAGONAL
3249      * GM_BOLUS_ADVEC
3250    in conjunction with data.gmredi parameters to be checked in
3251    in a few minutes under verification/carbon/code/
3252    
3253    checkpoint47f_post
3254    Merging from release1_p10:
3255    o modifications for using pkg/exf with pkg/seaice
3256      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
3257        and SEAICE_EXTERNAL_FLUXES
3258      - pkg/exf CPP options EXF_READ_EVAP and
3259        EXF_NO_BULK_COMPUTATIONS
3260      - usage examples are Experiments 8 and 9 in
3261        verification/lab_sea/README
3262      - verification/lab_sea default experiment now uses
3263        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
3264    
3265    checkpoint47e_post
3266    o created a tag prior to creating a branch
3267    
3268    checkpoint47d_post
3269    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
3270      at the bottom boundary had an erroneous half slip boundary condition
3271    o added bottom drag and no slip boundary condition capabilities to
3272      oceanic pressure coordinates code
3273    o added new verification experiment global_ocean_pressure, this experiment is
3274      also described in the tutorial section of the manual
3275    checkpoint47d_pre
3276    
3277    checkpoint47c_post
3278    o Added a verification experiment for a global cubed-sphere ocean run
3279      -  verification/global_ocean.cubed32x32x30
3280      -  uses pkg/therm_seaice and pkg/bulk_forcing
3281    
3282    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
3283    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
3284      when using P-coordinate; only implemented for atmospheric config.
3285    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
3286      NOTES: requires option NONLIN_FRSURF to be "#define".
3287    o update advect_xz/results/output.txt (left from checkpoint44g_post)
3288    
3289    checkpoint47b_post
3290    Merging from release1_p9:
3291    o pkg/seaice
3292      - removed GOTO's and added taf directives
3293      - double precision constants to reduce the g77 (Linux)
3294        to F77 (SGI) differences reported in release1_p8
3295    o tools/genmake
3296      - added SGI options
3297    o verification/testscript
3298      - updated to that of checkpoint47a_post
3299    o verification/global_ocean.90x40x15/input/eedata
3300      - modified for SGI f77 compatibility
3301    o verification/lab_sea
3302      - added description of sea-ice model
3303      - added missing matlab routines
3304      - added test of thermodynamics parallelization
3305    
3306    checkpoint47a_post
3307    o new pkg: aim_v23
3308     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
3309       for now, keep the same surface forcing as before.
3310     - Part-Cell implemented into AIM; check that Heat & Water are conserved
3311     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
3312     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
3313    o add diagnostic of surface correction term in monitor output
3314    
3315    o bulk_force and therm_seaice
3316    - Two packages:  bulk_force (Bulk forcing)
3317      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
3318    - Earlier integration from Stephaine Dutkiewicz
3319      and Patrick Heimbach.
3320    - Two ifdef statements for compile time,
3321       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
3322    
3323    checkpoint47
3324    differentiable version of checkpoint46n_post
3325    o bug fix in quasihydrostaticterms
3326    o * "clean" adjoint code (in terms of extensive recomputations)
3327        can now be obtained for all GMREDI options (i.e. for
3328        - GM_VISBECK_VARIABLE_K
3329        - GM_NON_UNITY_DIAGONAL
3330        - GM_EXTRA_DIAGONAL
3331        - GM_BOLUS_ADVEC )
3332      * However, wrong gradient check problem remains unsolved.
3333      * New CPP options have been introduced for different
3334        tapering schemes
3335    o external_fields_load now part of differentiation list
3336    o pressure needs multiple storing;
3337      would be nice to have store_pressure at beginning or
3338      end of forward_step, e.g. by having phiHyd global (5-dim.)
3339      (NB: pressure is needed for certain cases in find_rho,
3340      which is also invoked through convective_adjustment).
3341    o recomputations in find_rho for cases
3342     'JMD95'/'UNESCO' or 'MDJWF' are OK.
3343    o #define ATMOSPHERIC_LOADING should be differentiable
3344    o ini_forcing shifted to begining of initialise_varia
3345    o Incorporating QNVS line search routines into MITgcm
3346      (this is separate code, and therefore not under pkg)
3347      lsopt/, optim/
3348    o Updated verification/carbon/
3349      - #define GM_VISBECK_VARIABLE_K
3350      - GM_taper_scheme    = 'ldd97'    
3351    
3352    checkpoint46n_post
3353    Merging from release1_p8:
3354    o verification/natl_box:
3355      updating new external_fields_load routine
3356    o New package: pkg/seaice
3357      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
3358      The sea-ice code is based on Hibler (1979-1980).
3359      Two sea-ice dynamic solvers, ADI and LSR, are included.
3360      In addition to computing prognostic sea-ice variables and diagnosing
3361      the forcing/external data fields that drive the ocean model,
3362      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
3363      The implied surface heat flux is then stored in variable
3364      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
3365      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
3366      non-local transport term.  Because this call precedes model
3367      thermodynamics, temperature under sea-ice may not be "exactly" at
3368      the freezing point by the time theta is dumped or time-averaged.
3369      N.B.: fairly large differences in accuracy occur across
3370            different platforms/compilers; comparison between
3371            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
3372            generated output gives:
3373       T           S           U           V
3374      C D M    c        m  s        m  s        m  s        m  s
3375      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
3376      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
3377      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
3378    
3379      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
3380    o GAD:
3381      - generated new common blocks to account for call of
3382        same gad routines with differing traceridentities
3383        (needed to modify tracerIdentity indices in GAD.h)
3384      - generated separate common blocks for case useCubedSphereExchange
3385        (Department of Futurology)
3386      - parameter lists to gmredi_?transport: added tracerIdentity
3387      - added new key indices to tamc.h
3388    o external_fields_load:
3389      - added this routine to TAF list
3390      - needed to make some common blocks global and additional storing
3391        along the same lines as exf package (checkpoint_lev?_directives.h)
3392    o exf:
3393      updated external forcing package
3394      - bug fixes carried over from ecco-branch
3395        (missing OBCS_OPTIONS.h in two routines)
3396      - enable easy to use "no forcing".
3397      - added exf I/O for atmospheric loading
3398      - added exf I/O for runoff data
3399      - transfered scaling between exf <-> MITgcm to exf namelist
3400    o Adding new verification experiment global_with_exf.
3401      This verification experiment is almost identical to the
3402      global_ocean.90x40x15 experiment, except that it uses
3403      the exf (and cal) package instead of the
3404      external_fields_load routine (cf README file).
3405    
3406    checkpoint46m_post
3407    o modified testscript to return -- when there are no lines of "%MON" output
3408    o added new flag "quasiHydrostatic" for QH mode
3409      and new routine quasihydrostaticterms()
3410    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
3411      New routine: mom_u_coriolis_nh()
3412    o fixed sign of non-hydrostatic metric terms in u and v equations.
3413      Depend on correct sign of gravitySign.
3414    o added work.pc* to .cvsignore in aim directories using ifc
3415    o introduced flag for controllin non-hydrostatic metric terms
3416    o removed gravitySign from PARM04
3417    o switched to g77/ifc from pgf77 in aim experiments
3418    
3419    checkpoint46l_post
3420    o made convective adjustment work with pressure coordinates:
3421     - changed the direction of k-loop in convective_adjustment.F for the
3422       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
3423     - adjusted the reference pressure k-index in convective_adjustment.F
3424     - adjusted the convection condition in convect.F (in analogy to
3425       calc_ivdc.F)
3426     - convective_adjustment no longer computes anything on the halos
3427     - removed the warnings about negative salinity from find_rho.F and
3428       find_alpha.F; instead the new routine look_for_neg_salinity, called
3429       at the beginning of find_rho, find_alpha, and find_beta, does a
3430       check of the entire slice, if CPP-option
3431       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
3432    checkpoint46l_pre
3433    
3434    checkpoint46k_post
3435    o fixed the verification/global_ocean.90x40x15 experiment:
3436     - new bathymetry (the world according to A., JMC, and M.)
3437     - new initial fields and forcing fields (*.bin files)
3438     - new POLY3.COEFFS (for the next release one should switch to a full
3439       equation of state: JMD95P or MDJWF)
3440     - fixed several errors and redundancies in the data file
3441     - experiment uses looped cells
3442     - added matlab directory with diagnostic scripts for plotting of output
3443    
3444    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
3445     - read AIM physics parameters from a file (data.aimphys)
3446     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
3447    
3448    checkpoint46j_post
3449    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
3450    o move wVel computation at the end of the time step, in S/R integr_continuity
3451    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
3452    o update timeave pkg for wVel diagnostic.
3453    checkpoint46j_pre
3454    
3455    checkpoint46i_post
3456    o Clean up AIM package (and keep the results unchanged):
3457      include CPP_OPTION and use IMPLICT NONE in all routines ;
3458      declare all the variables _RL ; use _d 0 for all numerical constants.
3459      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
3460    
3461    checkpoint46h_post
3462    o cleaned up the use of rhoNil and rhoConst.
3463      - rhoNil should only appear in the LINEAR equation of state, everywhere
3464        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
3465        and the dynamical equations are all divided by rhoConst
3466    o introduced new parameter rhoConstFresh, a reference density of fresh
3467      water, to remove the fresh water flux's dependence on rhoNil. The default
3468      value is 999.8 kg/m^3
3469    o cleanup up external_forcing.F and external_forcing_surf.F
3470      - can now be used by both OCEANIC and OCEANICP
3471    checkpoint46h_pre
3472    
3473     Added code to convert surface volume flux (fresh water) into
3474     a mass flux when using P coordinates in the ocean (OCEANICP).
3475     Note: It assumes you have set rho0=rhoConst=density of fresh water.
3476    
3477    checkpoint46g_post
3478    o Include a new diagnostic variable phiHydLow for the ocean model
3479      - in z-coordinates, it is the bottom pressure anomaly
3480      - in p-coordinates, it is the sea surface elevation
3481      - in both cases, these variable have global drift, reflecting the mass
3482        drift in z-coordinates and the volume drift in p-coordinates
3483      - included time averaging for phiHydLow, be aware of the drift!
3484    o depth-dependent computation of Bo_surf for pressure coordinates
3485      in the ocean (buoyancyRelation='OCEANICP')
3486      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
3487        Theta, Salinity, and Pressure in the parameter list. This routine is
3488        presently contained in find_rho.F. This routine does not give the
3489        correct density for 'POLY3', which would be a z-dependent reference
3490        density.
3491    o cleaned up find_rho
3492      - removed obsolete 'eqn' from the parameter list.
3493    o added two new verification experiments: gop and goz
3494      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
3495    checkpoint46g_pre
3496    
3497    checkpoint46f_post
3498    o Enable tangent linear (forward mode) gradient checks:
3499      - extended active file handling to g_... files
3500      - added TANGENT_SIMULATION to theSimulationMode
3501      - extended grdchk package accordingly
3502    o added tangent linear setup in verification/carbon/code_ftl
3503    o added adjoint setup in verification/front_relax/code_ad
3504    
3505    checkpoint46e_post
3506    o Added new equation of state -> MDJWF
3507      - EOS of McDougall et al., 2002, JAOT, submitted
3508      - caveat: the equation of state is only valid for a smaller (more
3509        realistic?) range of values than JMD95P/Z and UNESCO
3510      - added masks to the calculation of pressure in store_pressure
3511      - added more check values for density in check_eos (ini_eos.F), some of
3512        the old check values are out of the range of the MDJWF-eos, so don't
3513        expect perfect matches for those
3514    checkpoint46e_pre
3515    
3516    checkpoint46d_post
3517    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
3518      'OCEANICP', also initialised field pressure correctly in ini_eos in the
3519      case of pressure coordinates. eosType='JMD95Z' in
3520      combination with buoyancyRelation='OCEANICP' now causes an error.
3521    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3522      in find_alpha/beta.
3523    checkpoint46d_pre
3524    
3525    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3526      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
3527    
3528    checkpoint46c_post
3529    o Changes necessary for ocean in p-coordinates
3530     -  Added new buoyancy relation = 'OCEANICP'
3531     -  Added new parameters = gravitySign (this used to be contained inside
3532        the factor dRdZ which I added when we first switched to R coordinates).
3533     X GM/Redi is not compatible (yet)
3534     X bottom drag and no-slip need to be debugged.
3535    checkpoint46c_pre
3536    
3537    checkpoint46b_post
3538    o Added new equation of state -> JMD95Z and JMD95P
3539      - EOS of Jackett and McDougall, 1995, JAOT
3540      - moved all EOS parameters into EOS.h
3541      - new routines ini_eos.F, store_pressure.F
3542    o Added UNESCO EOS, but not recommended because it requires
3543      in-situ temperature (see JMD95)
3544    o Modified formatting for knudsen2.f in utils/knudsen2 and added
3545      unesco.f to be used with POLY3
3546    checkpoint46b_pre
3547    
3548    checkpoint46a_post
3549    o Added (atmospheric) pressure loading
3550      - new field in FFIELDS.h, etc...
3551      - new cpp flag ATMOSPHERIC_LOADING
3552    o Changed hFacC to _hFacC in calc_phi_hyd.F
3553    o Added SHORTWAVE_HEATING to some files for consistency
3554    checkpoint46a_pre
3555    
3556    checkpoint46
3557    further merges from release1_p5
3558    o new ctrl package
3559      - adopted from ECCO environment to enable optimization
3560      - added Eliassen Palm fluxes to controls
3561    o added Eliassen Palm flux controls to gradient check package
3562    o cost package
3563      - Compatible with new ctrl package
3564      - added Eliassen Palm cost hooks
3565      - modif's of existing cost functions
3566    o Adjoint-related bug fixes in kpp:
3567      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
3568      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
3569    o autodiff package
3570      - flow directives:
3571        + new for S/R do_the_model_io
3572        + enhanced for S/R checkpoint
3573        + new gmredi.flow
3574      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
3575        disable adcommon.h/g_common.h by default.
3576      - fixed problem for adjoint of global_max
3577    o modified verification/carbon/
3578    o New setup for adjoint of global_ocean
3579    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
3580    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
3581    o incorporated hooks for sponge layer code (external_forcing.F)
3582    
3583    checkpoint45d_post
3584    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
3585    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
3586      (affects plume_on_slope "cg2d" output)
3587    o add new parameter deltaTfreesurf for free-surface time stepping
3588    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
3589    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
3590    o change phiMin in exp1 (to agree with documentation)
3591    o add new flags:
3592     - T,S forcing inside/outside Adams-Bashforth
3593     - turn off temp,salt advection and/or forcing
3594     - for each tracer, define internal flag for multiDimAdvection & A-B
3595    o monitor: change definition of KE to check conservation of Energy
3596    
3597    checkpoint45c_post
3598    o Removed f90 comments ("!")
3599    o Modified initialisations to enable exf package for MITgcm
3600      (without invoking ECCO_PACKAGE).
3601    o modifications to gradient check package (Martin Losch)
3602      - enable centered differences
3603      - modified format of standard output
3604    
3605    checkpoint45b_post
3606    o cleaned exchange calls in cg2d
3607    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
3608    o included CPP option SINGLE_LAYER_MODE in thermodynamics
3609      to configure barotropic setup (Martin Losch)
3610    o moved some initialisations within bi,bj loop in dynamics
3611      (TAF flow dependency)
3612    o in initialise_varia, moved call packages_init_variables
3613      before convective_adjustment_init
3614      (corresponding adjustment of TAF tape initialisation).
3615    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
3616    
3617    checkpoint45a_post
3618    o compute Rho over the whole domain (extend iMin,jMin indices)
3619    o specific exchange for X-slice domain (case Ny=1)
3620    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
3621    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
3622    
3623    checkpoint44h_post = checkpoint45
3624    o Fix to restore differentiability:
3625      place at which packages_init_variables is called in
3626      initialise_varia is crucial for reverse control flow.
3627    o modifications in GMRedi to enable stable adjoint
3628      (corresponding modif's in thermodynamics, dynamics)
3629    o added missing hook for sponge layer code in external_forcing
3630    o modified test cost functions
3631    o storing in gad_advection (plus removal of write(0,*)!
3632    o missing headers TR1.h added in convective_adjustment routines
3633    o errorMessageUnit set non-equal zero in eeboot
3634      (conflict on some platforms, e.g. IBM SP3)
3635    o modified carbon verif.
3636    
3637    checkpoint44h_pre
3638    o vertical grid option: allow to put the Interface at the middle between
3639      2 cell-centers ; replace delZ in pkg/kpp by drF.
3640    o GM Advective form: Tracers are advected using the residual transport (=
3641      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
3642    
3643    checkpoint44g_post
3644    o fix surface correction term in multiDimAdvection (affects plume_on_slope
3645      results) ; ifdef missing in thermodynamics.F
3646    
3647    checkpoint44f_pre,checkpoint44f_post
3648    o added PTRACERS package
3649      This allows an arbitrary number of passive tracers to be integrated
3650      forward simultaneously with the dynamicaly model.
3651      + Implemented so far:
3652        - basic forward algorithm (time-stepping, advection, diffusion, convection)
3653        - I/O and checkpointing
3654        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
3655      + Not implemented so far:
3656        - KPP
3657        - OBCS
3658      + No specific example supplied (yet) but global_ocean.90x40x15 has the
3659        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
3660        line in data.pkg.
3661      + This package is disabled by default since it increases storage.
3662    
3663    
3664    o testscript: added -cleanup option
3665    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
3666                 b) enable to filter 2D fields.
3667    
3668    checkpoint44e_pre,post
3669    o re-wrote convective adjustment to use pre-calculated weights
3670      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
3671      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
3672      Original calls to convect() still in place.
3673    
3674    chkpt44d_pre,post
3675    o added missing EXCLUDE_MONITOR flags
3676    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
3677      (incompatible typ in MIN/MAX expressions caused problems
3678      on IBM SP3)
3679    o in genmake added variable MAKEDEPEND
3680      plus resetting for case SunOS
3681    o added timer_stats.c routine for IBM SP3
3682    o removed variables in dynamics
3683    !!! I forgot to create tag chkpt44d_pre !!!
3684    !!! But chkpt44d_pre = chkpt44c_post    !!!
3685    
3686    o real fresh water flux implemented with non-linear free-surface.
3687    
3688    chkpt44c_pre,post
3689    o few fix (mask in shap_s2, EmPmR in external_field_load,
3690      USE_NATURAL_BCS in solve_for_P);
3691    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
3692    
3693    checkpoint44b_pre/_post
3694    o merge of relevant stuff from the ecco-branch:
3695      - genmake: removed $S64 overwrite for case SunOS
3696      - pkg/exf: update and corrections for field swapping and obcs
3697      - pkg/ecco: parameter lists for the_model_main, the_main_loop
3698                  harmonized between ECCO and MITgcm
3699      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
3700                      updated checkpointing_lev... lists for obcs
3701      - model/src: minor changes in forward_step, plot_field
3702                   added directive for divided adjoint in the_main_loop
3703      - pkg/mdsio: added mdsio_gl_slice
3704    
3705    o check parameters & config (chkpt44a_pre,post)
3706    o OBC and NonLin_FrSurf.
3707    
3708    checkpoint44
3709    o fix bug in mom_vi_del2uv
3710    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
3711    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
3712    o update AIM experiments (NCEP input files)
3713    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
3714    o added some stuff for AD
3715    
3716    checkpoint43
3717    o added two new advection tests
3718    o added global 4x4 degree ocean test
3719    o added test of H&S94 with free surface on cube
3720    o some final mods for gradient check, adjoint,...
3721    
3722    checkpoint42
3723      Fixed AD-related problems:
3724    o Store directives up-to-date with re-arranged Adams-Bashforth
3725      (mainly thermodynamics.F)
3726    o New store directives for multi-dim. advection schemes
3727      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
3728      * new common block and key passkey
3729      (mainly gad_advection.F)
3730    o Modified store directives for split of dynamics/thermodynamics
3731      for the case ALLOW_KPP
3732    o Cleaned argument list for timestep_tracer.F
3733    
3734    checkpoint41
3735    o re-formatted/added comments in prologues of key subroutines
3736      to work with protex
3737    
3738    checkpoint40
3739    o moved calc_gs, calc_gt and calc_tr1 back to model/src
3740    o added FLT (floats) package from Arne along with demo. experiment
3741    o re-arranged Adams-Bashforth scheme for tracers to allow easier
3742      implementation of forward-in-time forcing terms
3743    o more mods for non-linear free-surface including new variable
3744    o modified multi-dim method to work on cube
3745    o bug fix in KPP (from DM)
3746    
3747    checkpoint40pre9
3748    o added DST advection schemes
3749    o fix MPI bug on SGI's
3750    o modifications for non-linear free-surface
3751    o fixed conditionals for fixed flow/passive tracer only mode
3752    o added tension/strain form of stress tensor
3753    o changes to commenting of arguments for TAF/TAMC
3754    o added/updated many matlab scripts
3755    o added multi-dimensional advection method for tracers
3756      
3757    checkpoint40pre8
3758    o new package rw/
3759      Added method for dumping intermediate local arrays:
3760      mdsio_writetile - same as mdsio_writefield except works from inside
3761                        bi,bj loop
3762      mdsio_writelocal - same as mdsio_writetile except works for local
3763                         arrays
3764      write_local_r? - higher-level wrapper for mdsio_writelocal
3765      Controlled by diagFreq. Defaults to zero (ie. no dumps)
3766      Example given at end of mom_vecinv.F that dumps some local arrays.
3767    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
3768      control flux-form versus vector invariant code.
3769      Switch is runtime flag vectorInvariantMomentum (defaults to false)
3770      or genmake -DISABLE ...
3771    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
3772      (additional storing is now needed for case vecinv;
3773      currently nothing implemented to switch this storing off
3774      in case fluxform is used since no CPP flag available).
3775    
3776    checkpoint40pre7
3777    o bug fix in dynamics.F
3778      calc_viscosity called before k=1,Nr loop.
3779    o added some #ifdef's ALLOW_PASSIVE_TRACER
3780    o cleaned initialisations in ctrl_map_ini
3781      related to TAF
3782    
3783    checkpoint40pre6
3784    o split dynamics into thermodynamics & dynamics
3785    o corresponding split of calc_diffusivity into
3786      calc_diffusivity, calc_viscosity
3787      (kpp_calc_diff, kpp_calc_visc).
3788    o Added diffkr, kapgm to control variables
3789    o bug fix in gmredi_slope_limit for ldd97
3790    
3791    checkpoint40pre5
3792    o proper initialization of Adams-Bashforth time stepping
3793      + uses forward step for very first step of model (iter=0)
3794    o re-generated *all* output since almost all output is modified by this
3795      change (sorry but we've been putting this one off for about 2 years)
3796      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
3797        *not* regenerated since they are already out of date and I don't
3798        want to create the impression that they are suddenly working.
3799    o removed KAP stuff for DEC's
3800    o modified/added many .cvsignore files in */code and */input
3801    o added new expt "solid-body.cs-32x32x1"
3802      + this uses an alternative form of ini_curvilinear_grid.F which
3803        is not necessarily any better than the current one...
3804    
3805    checkpoint40pre4
3806    o added re-initialisations of utrans,vtrans,rtrans in
3807      calc_common_factors which are crucial for TAF.
3808    o extended iMin,jMin range for calc_common_factors,
3809      calc_diffusivity
3810    o added option ALLOW_PASSIVE_TRACER
3811    o a few minor updates and fixes
3812    
3813    checkpoint40pre3
3814    o created calc_gtr1.F for gad package
3815    o split the_main_loop and re-introduced forward_step
3816    o some recomputations of nIter0 for TAMC
3817    
3818  checkpoint40pre2  checkpoint40pre2
3819  o Updated to latest branch of AJA, JMC  o Updated to latest branch of AJA, JMC
3820  o Added gradient check package  o Added gradient check package

Legend:
Removed from v.1.41  
changed lines
  Added in v.1.1032

  ViewVC Help
Powered by ViewVC 1.1.22