/[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 1.70 by jmc, Sat Apr 6 01:36:25 2002 UTC revision 1.1008 by mlosch, Mon Jun 30 14:26:26 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 pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
8      is exceeded
9    o testreport: modify syntax of awk, so that it works also with
10      awk, and not only with nawk and gawk
11    
12    checkpoint61
13    o autodiff
14      Change default for TAF usage by removing argument '-nonew_arg'
15      This changes TAF subroutine argument list (ordering of active var.)
16      Omission of this flag leads to incompatibility w.r.t. TAMC
17      To restore TAMC-compatibility, need following modifs:
18      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
19      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
20      Tested TAF version is 1.9.22
21      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
22    
23    checkpoint60
24    --->>> This is the last checkpoint for which generating the adjoint
25    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
26    --->>> by default.
27    --->>> Future checkpoints will ommit this flag by default.
28    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
29    o pkg/grdchk: Add gradient check to etan0 perturbations.
30    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
31    o pkg/autodiff: more flexibility in zeroadj.
32      model/src: modifying do_oceanic_phys.F accordingly.
33    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
34    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
35      special setup of gmredi for which the adjoint is stable
36      enough for parameter optimization.
37    o bridging the gap between eddy stress and GM.
38      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
39          along with a change in CPP option (now ALLOW_EDDYPSI).
40      -> when using GM w/ GM_AdvForm:
41          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
42          is applied either in the tracer Eq. or in momentum Eq.
43          depending on data.gmredi (intro. GM_InMomAsStress).
44      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
45      The key modifications are in model/src/taueddy_external_forcing.F
46      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
47    
48    checkpoint59r
49    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
50      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
51      fix option to read coriolis(@ cell-corner) from files with CS-grid.
52    o pkg/mnc: add some attributes to standard 1D-coordinate variables
53    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
54      mass points, when using mnc for output
55      - add runtime parameter (missing_value, missing_value_int) to override
56        default (which is the value of getcon('UNDEF'))
57    o pkg/mnc: prepare mnc for the actual use of missing values with the
58      diagnostics package: small fix in mnc_cw_readwrite.template and more
59      initialisation of never used fields
60      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
61      versions
62    o pkg/thsice/thsice_ini_vars.F added default initial values so that
63      thermodynamics sea ice solver does not blow up when some initial fields
64      are missing.
65    o move from external_forcing_surf.F to ini_forcing.F
66      the p-coord. hack consisting in using pLoad to set phi0surf ;
67      update output of tutorial_global_oce_in_p (affected @ truncation level).
68    o Freshen up a bit hs94.1x64x5, notably:
69      remove rotationPeriod and tRef=5*0. (adjoint only), and add
70      exactConserv=.TRUE.
71    o pkg/generic_advdiff:
72      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
73      applies to files where Temperature & Salinity 2nd Order moments are used.
74    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
75      this uses a dynamically allocated internal state data structure
76      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
77      and requires a fortran 90 compiler
78    
79    checkpoint59q
80    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
81       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
82    o Refresh tutorial_global_oce_biogeo, notably:
83      - change bathymetry (put back seamounts in ACC, use hFacs)
84      - change EOS (POLY3 --> JMD95Z)
85      - use Bryan-Lewis vertical diffusivity
86      - use multidimensional advection
87      - remove old virtual virtual in dic pkg, now done through ptracer pkg
88      - change a couple of parameters in dic pkg
89    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
90    o pkg/obcs: change default to OBCSfixTopo = .true.,
91      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
92      - replace "debugMode" with "debugLevel .GE. debLevB"
93    o implementation of TAF directives for gchem,cfc,dic
94    o remove "exp5" (replaced by tutorial_deep_convection).
95    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
96      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
97      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
98      --> changes results in exp4, seaice_obcs
99    o tutorial_deep_convection :
100      update the set-up and increase resolution and domain size ; start
101      from pseudo initial conditions = output at t=120mn in order to see
102      something happening when running testreport.
103    o pkg/seaice: add os7mp as an advection scheme
104                  add check for advection schemes
105                  add a flag for restoring T and S underneath sea ice
106    o pkg/my82: add netcdf-support and diagnostics
107    o thsice pkg:
108      - Now hsMax limits snow height by turning it into ice following
109        flooding scheme (and now conserving energy)
110      - Slight rewriting of the formula in thsice_calc_thick.F
111      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
112      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
113    
114    checkpoint59p
115    o gchem / dic / cfc :
116      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
117      - add new parameter files: "data.dic" & "data.cfc" ;
118      - various re-arrangement in initialisation & header file ;
119      - fix tutorial_global_oce_biogeo for multi-threaded test.
120    o pkg/dic: test for "pickup_dic" file when restarting ;
121      if no pickup-file, can restart with a re-initialised pH (same as it did
122      before) providing pickupStrictlyMatch is set to False.
123    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
124      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
125    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
126      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
127    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
128     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
129       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
130    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
131       scheme to use for vorticty-term ;
132     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
133       (with default selectVortScheme, return to original discretisation)
134     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
135    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
136    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
137      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
138      also fix diagnostics VISCAHW & VISCA4W.
139    
140    checkpoint59o
141    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
142    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
143      move a few statemens out the main loop into separate loops
144    o pkg/shelfice:
145      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
146        (kg/m^2/s), does not break tests, because in verification/isomip,
147        rhoConstFresh=rhoConst (by accident)
148      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
149      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
150        new file model/src/seawater.F, so that they are available for all pkgs.
151      - convert potential temperature into in-situ temperature. This changes the
152        isomip tests => update tests
153    o add a flag writePickupAtEnd (default=true) to be able to suppress
154      writing a pickup at the last timestep
155    o tools/mpack-1.6 :
156      - disable automake (not working) and autoconf (not needed).
157      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
158        also cleaner with much less compilation warnings.
159    o pkg/profiles:
160      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
161      (for "less than 32 characters name" compiler requirement)
162    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
163      conditions that have a different sampling frequency than S/T/U/V obcs
164    o pkg/diagnostics (stats-diags):
165      - fix global Min/Max in case 1 processor get only empty tiles
166    o genmake2: replace (4 times)
167         make genmake_tc_1.o >> genmake_warnings 2>&1
168      with
169         COMM="$CC $CFLAGS -c genmake_tc_1.c"
170         echo $COMM >> genmake_warnings
171         $COMM >> genmake_warnings 2>&1
172      to make genmake2 always see the value of CC as specified in the optfile.
173    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
174      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
175      - modify verification advect_cs test to test SOM-advection on CS-grid.
176    o pkg/ctrl:
177      - Rewrite of ctrl_map_ini_ecco.F,
178        introducing a generic routine (ctrl_map_ini_gen.F).
179      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
180    
181    checkpoint59n
182    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
183      number in dedicate array "hdiag":
184      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
185        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
186      - many small changes (integer format) for large number of diagnostics
187      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
188        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
189    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
190      usingSphericalGrid, this allows to define the rotated grid coordinates
191      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
192      geographical coordinates according to the inverse of the rotation defined
193      by the Euler angles, so that Coriolis parameter and online-interpolation by
194      exf works with the geographical coordinates on XC/YC/XG/YG.
195      Naturally, this feature does not work with all packages, so some
196      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
197      profiles), because there the coordinates are assumed to be regular
198      spherical grid coordinates.
199    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
200      - introduce isopycnal diffusion coefficient control.
201    o tools/adjoint_options:
202      - additional control vector components.
203    o pkg/mnc: have mnc create marginally meaning full coordinate variables
204      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
205    o pkg/mypackage:
206      - add example of read/write pickup for state-var ;
207      - add entry points to the main code for state-vars diags & write-pickup.
208    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
209      transitions for useExfYearlyFields
210      - add new subroutine that determines the file to read from for
211        use*YearlyFields = .TRUE. and .FALSE.
212      - add a verification experiment to global_with_exf that tests
213        useExfYearlyFields with USE_EXF_INTERPOLATION defined
214    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
215      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
216      subroutines (which could be generated from a template, because they are
217      almost identical), for now they are included in obcs_prescribe_read.F for
218      simplicity
219    o pkg/exf:
220      - add a little more diagnostic to exf_interp_read (in analogy to
221        mds_read_field, can be turned off with debugLevel < debugLevA=1)
222      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
223        ugly but fast by unrolling short inner loops, inserting a unroll=8
224        directive in routine lagran, and splitting a loop and making do while the
225        outermost loop (the latter requires the intoduction of index arrays)
226    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
227    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
228      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
229    o verification/seaice_obcs: updated for restart test and latest options
230    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
231      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
232      for now this is only available for the C-grid code and also within
233      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
234    
235    checkpoint59m
236    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
237      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
238    o gad_som : fix flux output (& diagnostics) to have same units as other  
239      advection scheme fluxes (was previously multiplied by deltaT).  
240    o added verification/seaice_obcs both to test seaice open boundaries
241      and to provide an example matlab scrpt for generating them
242    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
243    o pkg/salt_plume: clean up salt_plume_frac.F to
244      remove redundancy in PlumeMethod 1 and 4
245    o pkg/kpp: added saltplume diagnostics
246    o pkg/obcs and pkg/seaice:
247      - do not set uice and vice to zero when OB*icefile are unspecified
248      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
249      - moved seaice tracer obcs after call to seaice_growth
250    o pkg/salt_plume: added various options for salt plume depth
251      criterion and for vertical distribution of the salt
252    
253    checkpoint59l
254    o pkg/ptracers: new version of ptracers pickup:
255      read meta file and write only fields which are needed to restart.
256      ( same logic as main pickup file ; also using pickupStrictlyMatch )
257    o pkg/seaice:
258      - add timescale for melting due to warm mixed layer as a means of
259        setting SEAICE_availHeatFrac more conveniently
260      - add a CPP-flag/runtime parameter check for flooding algorithm
261      - reformulated availHeat in seaice_growth.F to be independent of AREA
262    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
263      unit changes
264    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
265    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
266      SX vector computer.
267    o pkg/seaice:
268      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
269        seaice forcing fields can now be read only through pkg/exf
270      - removed some unused halos
271    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
272    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
273      or U/VICE from U/VWIND before computing U/VSTRESS
274    
275    checkpoint59k
276    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
277      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
278    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
279      all experiments pass when compile with un-initialised var. checking option.
280    o added pkg/salt_plume
281    o script to test restart (for now, in MITgcm_contrib/jmc_script)
282    o pkg/seaice: new read/write pickup version.
283      read meta file and write only fields which are needed to restart.
284      ( same logic as main pickup file ; also using pickupStrictlyMatch )
285    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
286    o lab_sea.hb87: modify the domain & update output.hb87.txt :
287      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
288      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
289      process. Fixed here by closing the domain at the Northern boundary.
290    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
291    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
292      a set of consecutive levels in/from a 3-D array.
293    o pkg/ptracers:
294      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
295      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
296    
297    checkpoint59j
298    o in pkgs: dic, obcs, offline, rbcs:
299      standard way to compute coeff. for time interpolation between 2 time reccords
300      which retains full precision (& make results less dependent on compiler).
301      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
302    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
303      packages instead of reading ice cover and wind speed separately
304    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
305     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
306      to allow to compile customized code before the update)
307    o cleaning-up:
308      - fix CPP instruction syntax in pkg/obcs
309      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
310        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
311      - fix some threads issue in IO parts.
312    o pkg/dic:
313      - add tons of "_d 0" (--> much better testreports !)
314       and then update outputs of tutorial_global_oce_biogeo
315    o pkg/mom_fluxform:
316      add a special version of momentum advection intended to conserve momentum
317      next to a bathymetry step or a coastline edge. (default = off = #undef)
318    o new read/write pickup version:
319      - for now, only implemented for main (mdsio) pickup file.
320      - write out only what is needed to restart; merge pickup_nh , pickup_ph
321        and main pickup together.
322      - read meta file; read only what is needed to restart; stop if a field
323        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
324        if it make sense (even if the restart is not perfect).
325      - if no meta file, assume that pickup to read corresponds exactly to
326        a pickup that would currently be written.
327      - read pickup written in the old format (until checkpoint59i) if it
328        recognizes an old meta file (no field-list).
329      - add a meta file in exp. which starts from a pickup: 2 cases:
330        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
331         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
332        b) a meta file describing the content of the associated pickup file
333         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
334    o pkg/mdsio & pkg/rw:
335      - new routine to read a meta file ; new set of routine to read
336        Multiple-fields file (with meta file).
337    o added open boundary conditions capability for seaice
338        HSNOW, HSALT, UICE, and VICE
339    
340    checkpoint59i
341    o adjoint:
342      * fix multiDimAdvection adjoint
343        (partial recomputation problem by TAF for fVerT(:,:,kDown)
344        and comlev1 size definition (maxpass vs. max. number of tracers)
345      * verification/global_ocean.90x45x15 adjoint now tests
346        NLFS and multiDimAdvection using DST3 (=30)
347      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
348    o pkg/kpp: add "_d 0" to real constant (if missing);
349      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
350      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
351    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
352      for internal parameters related to restart process (formerly from PARAMS.h)
353      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
354    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
355      as argument. (only atm2d & obcs write_pickup have not yet been updated)
356    o pkg/monitor:
357      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
358      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
359      - account for deep Atmosphere factor and density factor (anelastic)
360    o added open boundary conditions capability for seaice HEFF and AREA
361    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
362      thermodynamics
363      - requires a little reorganization, which affects the testreport results
364        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
365        so that now the conservative form is tested
366      - add a few comments
367    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
368    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
369    o add new diagnostics to seaice: advective, diffusive fluxes (only for
370      multidim-advection, for scheme 2 they are not filled) and transports,
371      thermodynamic growth rates
372    o change units of EmPmR (inside the code, + within coupling interface)
373      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
374      Affects results @ truncation level (cg2d match) and update output of
375       experiments: lab_sea(6), global_ocean.90x40x15(10),
376      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
377      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
378      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
379      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
380    
381    checkpoint59h
382    o pkg/exf:
383      - improve vectorization by moving if-statement out of loops in
384        exf_mapfields, exf_radiation
385      - exf_bulkformulae.F: introduce 2D fields and vectorize code
386    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
387    o testreport:
388      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
389        monitor & update offline_exf_seaice exp. output.
390      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
391    o pkg/seaice:
392      - bug fix in the evp solver: boundary conditions were affected be
393        masking of zMax/zMin (changes results)
394      - minor bug fix in boundary conditions in seaice_calc_strainrates
395        (changes results for no_slip)
396      - seaice_lsr.F: make interpolation of eta dependent on boundaries
397      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
398      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
399        stress formulation and no-slip boundary conditions
400    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
401      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
402    o pkg/seaice: a first HSALT time stepping equation has been checked in
403    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
404      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
405      without requiring DO-IF statements
406    o pkg/thsice:
407      use continuous power-law function for partition of energy between lateral
408      melting/freezing and thinning/thickening ; old code using step function
409      still available with #undef THSICE_FRACEN_POWERLAW
410      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
411    o testreport: change AD testing : check against results/output_adm.txt
412      using same scripts as for forward test.
413    
414    checkpoint59g
415    o adjoint testing: in preparation for changing testreport:
416      - output format: cost and grad written on separated lines
417      - ad output results in directory "results" (instead of "results_ad")
418    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
419    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
420    o pkg/ecco: allow user defined cost function contributions
421    o testreport:
422      Allow to choose (per experiment) the list of tested output variables
423       and the main variable (used to issue a pass/FAIL ) ;
424      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
425      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
426      Also modify printing of summary:
427       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
428       b) echo the list of tested variables in the individual summary.txt of
429          each experiment.
430    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
431      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
432      (but still depend on the tile decompostion of the domain).
433    o pkg/seaice: change a discretization detail to make the B-grid code
434      "more symmetric". This change is likely to remove all "ridges/leads" that
435      where quasi-aligned with the grid in B-grid solutions. It may also be
436      the solution to the stress coupling issues with the B-grid.
437    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
438      remove .cvsignore from input dir. (since testreport no longer run here).
439    o pkg/thsice:
440     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
441     - fix reshaping of sea-ice just after advection:
442       melt all the ice only if ice-volume is too small.
443     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
444       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
445     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
446    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
447      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
448    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
449      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
450      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
451      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
452      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
453      -> update output.txt
454    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
455     this affects truncation error: -> update output.txt of exp:
456      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
457      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
458    
459    checkpoint59f
460    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
461    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
462      a bounded range (in forward mode)
463    o pkg/ecco, ctrl, autodiff and mom_common:
464     internal parameter controls, completements of implementations
465    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
466    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
467      (not seem any difference in testing results).
468    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
469       at face corners.
470    o pkg/generic_advdiff:
471     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
472      loop range indices for computing vertical advection tendency
473      and do the calculation in the interior only (no overlap) ;
474      for now, only implemented for SOM advection (to save CPU time).
475     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
476    o exch2 adjoint
477      First set of changes:
478      - add exch2 hand-written adjoint templates
479      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
480        This will require cleanup in pkg/autodiff/*.F
481        (changed routines currently kept separate in verif. code/)
482      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
483        that used to hide exch2 or cubed-sphere specific code
484        (commented via 'cph-exch2')
485    o pkg/seaice
486      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
487    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
488       output of global_ocean.cs32x15.thsice .
489    
490    checkpoint59e
491    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
492      for B-grid vector (not yet tested) and C-grid vector (<- only used
493      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
494    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
495      (#ifdef ALLOW_SALT_PLUME)
496    o gather_2d/scatter_2d: removed halo regions
497    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
498      scheme and the corresponding test case (under front_relax dir). For now,
499      only available with Skew-flux form and not yet tested in realistic set-up.
500      adjoint: store directives updated, but gradient checks deteriorated,
501      so maybe GM/Redi adjoint is now broken.
502    o seaice adjoint
503      * add AREA, HEFF, HSNOW as control variable
504        (should not change lab_sea results)
505      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
506    o pkg/seaice:
507      * added computation of saltFlux in seaice_growth;
508        For time being, sea ice salinity is assumed constant
509        contribution of snow flooding to freshening of sea ice is neglected.
510        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
511        defaults to 0.0 in order to maintain backward compatibility.
512        Typical values for SEAICE_salinity are 4 to 10 g/kg.
513      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
514      * added SEAICE_availHeatFrac, which specifies fraction of surface level
515        heat content used to melt or grow ice
516      * commented out cap of HICE: it helps keep ice thinner
517      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
518      * applied OBCS T/S mask to HEFFM sea ice mask
519    
520    checkpoint59d
521    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
522     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
523     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
524    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
525     and change default value of parameter "GM_Small_Number";
526     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
527       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
528       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
529    o pkg/ecco: cost function when applying pkg/smooth to controls
530    o pkg/ctrl: add forcingPrecond run time parameter
531    o pkg/seaice:
532     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
533     - fix bug in metric terms of u-equation in LSR solver (implicit part),
534       changes verification/lab_sea
535     - rearrange implicit part of u-equation in LSR solver to make it easier to
536       read, understand, and debug. This causes changes at the truncation level.
537     - fix (serious) bug in the boundary conditions (sign error in the implicit
538       part) of the LSR solver. Changes all LSR results.
539     - fixed problem with HSNOW initialization to avoid thick snow when AREA
540       is initilized with small values - does not change lab_sea results.
541     - added HsnowFile initialization capability
542    o pkg/smooth: addition to model/src and pkg/ctrl so allow
543     initialization of pkg/smooth and application to control vector
544    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
545    o dependencies: pkg/profiles requires pkg/cal
546    o pkg/profiles:
547     - added option ALLOW_PROFILES_GENERICGRID
548         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
549         that interpolation information (grid points and coefficients) is provided
550         within the netcdf input files.
551         -> sample matlab scripts can be found in MITgcm_contrib/gael
552         that allow you to prepare netcdf input files.
553     - also modified: cleaner include statements, cleaner error print statements,
554       cleaner stops when error, and more tests of the netcdf input files consistency.
555    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
556    o pkg/seaice:
557     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
558       requires a new routine: seaice_diagnostics_fill.F
559     - make sure that seaice does not move if not forced (pressure replacement
560       method, Hibler and Ip, 1995), changes results
561     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
562     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
563       It is turned off by default (=-1.), because it changes the results.
564     - make it possible to read AREA from a file, too.
565    
566    checkpoint59c
567    o add S/R and diagnostics for oceanic mixed-layer depth
568    o move GMRedi call after all vertical mixing schemes (including KPP)
569    o pkg/thsice:
570     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
571      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
572    o pkg/obcs:
573     - bug fix for balance code
574    o pkg/seaice:
575      - allow values of SEAICE_elasticParm > 1
576      - add new parameter SEAICE_evpTauRelax as an alternative
577        to SEAICE_elasticParm
578      - make lsr boundary conditions free slip (by default), changes result
579      - add code for no slip boundary conditions for lsr
580      - set minimum of zeta to zero (and not 4e8) (changes results)
581      - add a cap on AREA after advecting AREA if seaice_growth is not called
582    o change calculation of Visbeck K:
583      - no longer depend on tapering scheme; instead, compute slope (limited
584        by GM_maxSlope). this is equivalent to what was comuted before with
585        clipping or linear tappering.
586      - fix vertical averaging (wrong by 1/2 level)
587      - leave the old version (but will not be maintained) within
588        #ifdef OLD_VISBECK_CALC / #endif
589      - update output of exp. ideal_2D_oce
590    o change error catch in calc_r_star to improve vectorization
591    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
592      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
593    o adjoint:
594      Re-organized adjoint checkpointing according to Matt Mazloff
595      (but with modifs/completions/cleanups)
596      Storing is now bundled into large arrays to optimized I/O
597      (and second step in cleanup of the_main_loop)
598    
599    checkpoint59b
600    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
601      - export/import (between ocean & coupler) fields needed for ocean DIC.
602    o pkg/seaice:
603      - get rid of three more exchanges seaice_calc_viscosities (required
604        different loop boundaries in seaice_lsr and seaice_ocean_stress)
605      - bug fix in seaice_ocean_stress (update of lab_sea required)
606      - reduce loop boundaries to necessary minimum also in seaice_evp
607      - go back to the old way of computing deltaC/Z as the adjoint likes that
608        better
609    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
610      passive tracer to an Age Tracer) + update output.txt
611    o pkg/exf:
612      - implement A-grid / C-grid selection for wind-stress input files.
613      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
614      for now, in exf_bulk_largeyeager04.F only :
615      - change implementation for case where windspeed + 2. components wind-stress
616        are read-in. AND use rhoConstFresh to convert evap.
617    o pkg/seaice:
618      - use correct EXCH_UV for wind-forcing (on A-grid).
619      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
620        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
621    o pkg/exf:
622      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
623      EXF_INTERPOLATION:
624      - merge global_with_exf/code version of exf_interp_read.F
625        to the main code ;
626      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
627        reading the file ; Important: This options needs to be defined to recover
628        previous code.
629        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
630      - no longer loose real*8 precision along the way when using exf_iprec=64.
631    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
632      - change discretisation of evp-solver in order to avoid another exchange
633        (changes lab_sea) and clean up a little
634      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
635        help the adjoint (this also changes the results slightly)
636      - add a few "_d 0" where they had been missing in seaice_evp.F
637      - cleaning up: remove unused seaice_calc_rhs.F
638    o pkg/exf: some cleaning-up:
639      - change various "constants" into runtime parameters
640      - cleaned-up Large&Yeager04 routine which should eventually
641        replace exf_bulkformulae.F (changed names of S/R and CPP)
642        and merged various ALLOW_ATM_WIND options
643     only used with thsice pkg (in thsice_get_exf.F):
644      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
645        which are used when useStabilityFct_overIce=TRUE (= the default)
646      - change default values of ice & snow emissivity and scale downward LW
647        by ice & snow emissivity.
648    o pkg/thsice:
649     fix few little problems, in thsice_calc_thickn.F:
650      - growth vertically (and not laterally) if iceFrac == iceMaskMax
651      - melt only laterally if hIce < hThinIce (as the comments say)
652      and in thsice_extend.F:
653      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
654      - start to form ice as soon as the minimum ice-volume is reachable.
655     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
656      and cpl_aim+ocn
657    o pkg/kpp
658     - move computation of surface related input fields to KPP into a new
659       subroutine kpp_forcing_surf.F
660     - remove wrong (within bi,bj loops) EXCH calls.
661     - little cleaning (add argument myThid in last position, cvs header ...)
662     - for now, fix conservation problem by exchanging KPPviscAz (may not
663       be the best fix)
664    o pkg/seaice
665     - check for inconsistent evp parameter/cpp-flag combination
666     - remove leftover errIO flat for obsolete name list error handling
667    o OpenAD
668     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
669    
670    checkpoint59a
671    o pkg/seaice: some parameter clarifications and a little bit of clean up
672    o pkg/thsice: rename run-time parameters:
673       himin       -> hIceMin
674       himin0      -> hThinIce
675       hihig       -> hThickIce
676       i0          -> i0swFrac
677       transCoef   -> bMeltCoef
678       frac_energy -> fracMelting
679      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
680       with default values (for now) that do not change the results.
681      remove old version of thsice vars advection in pkg/seaice.
682    o in FFIELDS.h:
683      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
684      - make pLoad & sIceLoad always available (but still only used if
685         ATMOSPHERIC_LOADING is #define).
686    o pkg/kpp: replaced _KPP_RL with _RL
687    o bug fixes for vertical diffusivity computations when both KPP and
688        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
689        are no longer updating the vertical diffusivity array
690        (passed as argument) but are (re-) setting those arrays.
691    o pkg/seaice: fix bug in evp solver, while doing that
692      - change (improve?) discretization of stress computations for both
693        cgrid-lsr and evp solver
694      - add a new routine to compute strain rates
695      - the above changes lab_sea results
696      - add no slip conditions for evp solver (off by default), lsr-version
697        may follow
698      - fix exchange for shear at Z-points (does not change lab_sea)
699      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
700        (to force the user to pick a time step since there is not "safe" way
701        of choosing it)
702      - add principal stress diagnostics
703      - rearrange fields for evp a little to avoid having to call a: too many
704        exchanges and b: exchanges for stress trensor components which we do
705        not have.
706      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
707        of evp, complete rewrite for lsr case (latter is does not yet work
708        in all cases)
709    o pkg/kpp: add code to have mixing in shelf ice caverns
710      - add myThid to all kpp routines (long overdue)
711    
712    checkpoint59
713    o pkg/exf:
714      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
715        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
716      - move exf header files from lower_case.h to UPPER_CASE.h ;
717        add missing cvs Header & Name
718      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
719      - add namelist param. selectStressGridPosition, exf_monFreq
720      - retire many _CLIM routines, and remove data.exf_clim
721        + params moved to data.exf
722        + climsst, climsss now handled by exf_set_gen, i.e.
723          climss?period=0 refers to constant field,
724          climss?period=-12 to monthly forcing
725      - split up namelists in data.exf
726    o pkg/seaice:
727      - remove seaice_exch and seaice_exch_uv
728      - remove superfluous exchange of theta
729      - add myThid to seaice_budget_ocean/ice
730      - add new interface for atmospheric wind forcing (C-grid only)
731        + new routine
732        + two new field (taux, tauy for stress over ice)
733        + removed one global field (DAIRN) for C-grid case only
734    o pkg/thsise
735      - 2nd set of modifs for thsice adjoint in conjunction with exf
736    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
737    
738    checkpoint58y_post
739    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
740      vertical diffusivity, similar to that in MOM4; turned on using
741      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
742      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
743    o Added capability for 3D specification of background vertical diffusion
744      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
745      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
746      "data" file that contains the 3D vertical diffusivity coefficients.
747    o ice dynamics (pkg/seaice) with thsice thermodynamics:
748      - add code within pkg thsice to advect & diffuse sea-ice fields
749      similar to (and will replace) what has been added in  seaice_advdiff.F,
750      but: - conserving Mass, Heat & Salt.
751           - better when using non-linear advection scheme (not yet fully tested)
752           - can also be used in atmospheric set-up (for now, only the diffusion).
753    
754    checkpoint58x_post
755    o IO option for global-file compact format:
756      - add options when generating topology (utils/exch2/matlab-topology-generator)
757      - add I/O capability (pkg/mdsio).
758      - adapt utils/matlab/rdmds.m to read this format.
759      for now long-line format not yet supported by pkg/mdsio (& exch2).
760    o shelfice: add a few diagnostics
761    
762    checkpoint58w_post
763    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
764      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
765      (and replace horiVertRatio in NH code).
766      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
767                         and tutorial_plume_on_slope (sensitive to truncation)
768    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
769      directly to drive seaice model (C-grid only)
770    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
771     - reintroduce computation of wind from stress,
772     - compute tau (in exf_bulkformulae.F) from windstress averaged to
773       mass points to avoid tau = 0
774     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
775    o rdmnc.m: make it work with "global" files created with gluemnc
776    o rdmnc.m : some improvements in dealing with singleton dimension
777      (tested on all testreport mnc output files).
778    o genmake2: disable pkg/profiles if netcdf test fails.
779    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
780    o move call to cal_readparms up to make calendar parameters/variable available
781      to all packages
782    
783    checkpoint58v_post
784    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
785      useDynP_inEos_Zc tested.
786    o pkg/exf: changes to properly interpolate/mask/scale initial fields
787    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
788      and portions thereof.  See read_cs.txt for description and examples.
789    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
790      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
791      following the great-circle arc between those 2 points.
792    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
793      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
794    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
795     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
796     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
797     - still needs work (not working with some options ; efficiency to improve)
798       and serious testing.
799     - use this scheme for temperature & salinity in 2 advection test exp.:
800       advect_xy & advect_xz, respectively.
801    
802    checkpoint58u_post
803    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
804    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
805    o testreport: add option "-skipdir" to skip some test.
806    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
807      momentum calculation.
808    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
809    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
810      remove checkpoint.F and the_correction_step.F (no longer used);
811      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
812    o add option (linFSConserveTr) to correct for tracer source/sink due to
813      Linear Free surface
814    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
815    o pkg/thsice: fix reading mnc-pickups
816    
817    checkpoint58t_post
818    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
819    o pkg/mdsio:
820     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
821       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
822       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
823     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
824     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
825       either MDS_READ_FIELD or MDS_WRITE_FIELD )
826     - new S/R (to replace MDSWRITEMETA), which allows to write more
827       informations (variable names, time ...) to meta files.
828     - modify rdmds.m to give back the meta file content.
829    o pkg/diagnostics: change vertical interpolation to be safer, and more
830       flexible (define p-levels to interpolate to in data.diagnostics);
831      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
832       diagnostic pointer.
833    o pkg/seaice: more cleaning up of seaice_growth, added many comments
834    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
835    o fix multi-category seaice:
836     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
837       SEAICE_MULTICATEGORY
838     - fix short wave heat flux
839    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
840       and allow to use EVP solver. Change forward lab_sea: test both EVP
841       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
842    o Initial check-in of lab_sea adjoint
843      (very similar to natl_box_adjoint/code_seaice)
844      * used C-grid and EVP solver
845      * used KPP, GM/Redi
846      * uses inAdExact=.TRUE.
847      * gradient checks fail for both ADM and TLM
848        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
849        f.d. gradients actually seem more problematic than ADM, TLM gradients;
850        issue is related to forward mismatch between g77 an ifort
851    o pkg/seaice: overhaul of thermodynamics
852     - growth.F and groatb.F are replaced by new routine seaice_growth.F
853     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
854     - move a few global fields out of SEAICE.h into seaice_growth.F and
855       make them 2D (FICE/QNETO/ ...)
856     - remove FO (it is the same as QNETO)
857     - introduce a few local fields to avoid modifying external fields such
858       as atemp, etc.
859    
860    checkpoint58s_post
861    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
862      changed exf_set_gen.F so that
863        genperiod=0 means input file is one time-constant field and
864        genperiod=-12 means input file contains 12 monthly means
865    o CG2D: use pre-computed solver main-diagonal (stored in common block);
866      this affects truncation error ; generate new output file for exp. which
867      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
868        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
869        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
870        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
871        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
872        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
873    o start implementation of deep-atmosphere and anelastic formulation
874    o verification: remove 2nd copy of input files and use script "prepare_run"
875      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
876    o mom_common/vecinv/fluxform: fix a few initialisation isssues
877    o profiles: fix for multithreaded case
878    
879    o diagnostics: rename few diags:
880      s/'PRESSURE'/'RCENTER '/g
881      s/'TICE    '/'oceFreez'/g
882      s/'TAUX    '/'oceTAUX '/g
883      s/'TAUY    '/'oceTAUY '/g
884      s/'SWFLUX  '/'oceQsw  '/g
885      s/DIFx/DFxE/g
886      s/DIFy/DFyE/g
887      and add few ocean-forcing diagnostics:
888      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
889    o modifications to pkg/seaice/growth.F and budget.F, which change results of
890      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
891      as actual snow thickness.  It now refers everywhere to effective snow
892      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
893    
894    checkpoint58r_post
895    o modifications to pkg/seaice/growth.F, which change results of
896      lab_sea experiment: fixes pertain to melting snow over open water, to
897      masking EVAP under sea ice, and to using the correct AREA variable for
898      computations of EVAP, PRECIP, HSNOW, and GHEFF
899    o add ability to read bathy, salt, and theta using MNC (off by def)
900    o add flooding algorithm and advection of HSNOW for pkg/seaice;
901      both are turned off by default and do no change any results
902    o seaice advection with pkg/thsice: a step toward the use of non-linear
903      advection scheme, but #ifdef or commented out for now (requires more EXCH).
904    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
905      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
906      in natl_box (affects results @ truncation level: update output.txt)
907    o multi-threading and IO:
908      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
909      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
910        (needed to work with SingleCpuIO): tested in all verif. exp.
911    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
912      affects the results (but none of the verification test uses this scheme).
913    o Adding some pkg/diagnostics capability to pkg/seaice
914      (will certainly be subject to changes)
915    o ctrl: adding new control variables:
916      lwflux, lwdown, evap, snowprecip, apressure, runoff
917    
918    checkpoint58q_post
919    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
920      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
921      high_res_cube configuration by 4% on Columbia.
922    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
923      add (in global_with_exf/code) a version of EXF_INTERP_READ without
924      dynamical allocation (seems to work in multi-threaded).
925    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
926      single CPU io) so that TAF does not have to see EESUPPORT.h
927    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
928    
929    checkpoint58p_post
930    o obcs: stop if obcs is used with useCDscheme = .true.
931    o shelfice:
932     - fix a sign error so that no slip at shelfice interface works
933     - remove stop for combination non-hydrostatic code and shelfice. That does
934       not mean, that the results are correct, but at least they are numerically
935       stable
936    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
937    o added adjoint exch routined for all exch*3d* routines
938      and updated flow directives
939    
940    checkpoint58o_post
941    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
942      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
943    o change controling S/R for writing pickup file (new S/R do_write_pickup)
944      and clean-up reading/writing of pickup files.
945    o fix local version of read/write pickup (NH part) in rotating_tank/code
946    o simplify EXCH interface:
947     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
948     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
949    o added the regrid package
950    o shelfice:
951     - add a simple boundary layer scheme to reduce noise
952     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
953    
954    checkpoint58n_post
955    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
956       local variable (not in common block).
957    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
958      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
959      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
960        to work with SingleCpuIO.
961    o add "_d 0" to real constant of pkg/cfc subroutines ;
962       update exp. cfc_exemple & tutorial_cfc_offline output files.
963    o multi-threading and IO:
964      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
965        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
966      - barrier before and after reading.
967      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
968      - avoid using MDS_WRITELOCAL for LAND pkg output.
969      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
970        common-block variables ; Allows multi-threading with master-thread IO.
971    o change default MAX_NO_THREADS from 32 to 4 ;
972      and stop cleanly when MAX_NO_THREADS is too small.
973    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
974    
975    checkpoint58m_post
976    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
977       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
978    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
979       keep global_ocean.90x40x15 (for AD testing) with former secondary test
980       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
981    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
982        add MITgcm_tutorials (= code + all the tutorials)
983    o ecco, option to compute cost for total ssh (mean+anom)
984    o consistent with addition of ptracer and ssh in pkg/profiles
985    o profiles: adding ptracer and ssh
986    o testreport: change multi-test output-file name
987      (from output.txt.{name} to output.{name}.txt)
988    o profiles: now ok for mutli-tiles case
989    o seaice: add 4 parameters for different advection schemes for area,
990      (effective) seaice thickness, enthalphy, and snow height. Their default
991      is the standard parameter SEAICEadvScheme
992    o calc_gw:
993     - add cosFacU in zonal viscous flux (harmonic.visc.).
994     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
995       of tutorial_plume_on_slope.
996    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
997    o calc_gw: true flux-form, account for horizontal grid spacing.
998      update rotating_tank results, but not plume_on_slope (affected at
999      truncation level, 11 digits).
1000    
1001    checkpoint58l_post
1002    o calc_gw:
1003     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1004     - remove side-drag for now (need to fix it); update plume_on_slope results.
1005     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1006    o commit code to make SST/SSS weights spatially variable
1007      (based on either variable in-situ or variable initial T/S weights)
1008    o pkg/ecco:
1009      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1010        now based on horizontally varying weights wthetaLev, wsaltLev
1011      * cost_averagesflags now returns year indices in addition to day, month
1012      * sflux balance is performed on annual basis
1013        (sflxumm, sfluxmm2, bal_sfluxmm)
1014      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1015        including separate counting and multipliers
1016    o pkg/rbcs
1017      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1018    
1019    checkpoint58k_post
1020    o testreport:
1021     - always build in dir. "build" (if not there, mkdir build instead of building
1022       & running in input)
1023     - run in dir run (if it exists), in build otherwise.
1024     - call prepare_run (if input/prepare_run exists)
1025     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1026    o pkg/exf modifications to interpolation and rotation routines for more
1027       reasonable treatment of North Pole singularity: for tracers North Pole
1028       value is set to northernmost zonal-mean value, for zonal velocity it is
1029       set to zero, and for meridional velocity it is set to northernmost value.
1030    o pkg/exf/exf_check_range.F
1031     - add tile index to diagnostics and move stop statement to the very
1032       end of the routine.
1033    o pkg/diagnostics: (diagnostics_main_init.F)
1034      define title of isomorphic variables according to the current config.
1035    o pkg/thsice with pkg/seaice dynamics:
1036    - fix domain of computation (interior only, required for exf) and do exchanges
1037    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1038    o towards a standard way of dealing with multi-threading in MONITOR
1039      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1040    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1041       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1042    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1043    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1044    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1045       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1046    o tracer advection:
1047     - clean-up and simplify calc_common_factors.F
1048     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1049       advection subroutine (but still not used within DST advection S/R)
1050    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1051    
1052    checkpoint58j_post
1053    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1054      from file (collects calls previously in FORWARD_STEP)
1055    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1056    o adjoint store dir. adjusted accordingly
1057    o genmake2
1058      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1059    
1060    checkpoint58i_post
1061    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1062      on wind stress (SEAICEstressFactor defaults to 1.)
1063    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1064      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1065    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1066      on CS-grid: no longer loosing mass.
1067    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1068    o pkg/ggl90: fix sloppy output and fix a bug
1069    o pkg/seaice: added SEAICEuseEVPpickup parameter
1070      - Set to false in order to start EVP solver with
1071        non-EVP pickup files when using SEAICEuseEVP
1072      - fix sign error in diffusion in seaice_calc_rhs
1073    
1074    checkpoint58h_post
1075    * Modifications for bottom topography control
1076      o replace hFacC by _hFacC at various places
1077      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1078      o add non-self-adjoint cg2d_nsa
1079      o update autodiff support routines
1080      o re-initialise hfac after ctrl_depth_ini
1081      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1082    * Adding verification for 5x5 box (4-layer) bottom topography control
1083    
1084    checkpoint58g_post
1085    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1086       used for mean seasonal cycle, mean diurnal cycle); add an example
1087       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1088    o pkg/ggl90:
1089      - add parameter (minimum surface kinetic energy)
1090      - fix bug (avoiding division by zero)
1091    o couple pkg/thsice to pkg/seaice:
1092      - modify advection in seaice to accomodate new scalar fields to be advected
1093      - only muliDimAdection scheme work with seaice/thsice
1094      - mapping of thsice-variables to seaice-variables, back and forth
1095      - does not break the verification experiments, but does not give the
1096        desired results either
1097    o pkg/seaice
1098      - make (default) second order advection a bit less confusing?
1099    
1100    checkpoint58f_post
1101    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1102      to pkg/seaice):
1103      - new routines thsice_map_exf and thsice_get_exf provide the interface
1104      - add an additional formal parameter to thsice_solve4temp
1105    o pkg/exf:
1106      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1107      - correct Stefan-Boltzmann constant
1108      - new parameter for longwave surface emittance
1109      - separate some stuff from exf_bulkformulae into new routines  
1110        exf_radiation, exf_wind
1111      - add new parameters and constants: longwave emissivity for ocean, ice
1112        and snow, evaporation parameters over ice
1113      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1114        either wind from stress or stress from wind
1115    o pkg/thSIce:
1116    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1117    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1118       and THSICE_CALC_THICKN
1119    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1120    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1121      to make debugging easier.
1122    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1123    o pkg/bulk_force:
1124      - clean-up comments and parameters ;
1125      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1126    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1127      generate new output for test-experiment: aim.5l_cs.thSI
1128    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1129      testreport accordingly
1130    
1131    checkpoint58e_post
1132    o SEAICE_CGRID adjoint done
1133    o R_STAR adjoint implemented.
1134      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1135      * need to sort out init. of h0facc, etc.
1136    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1137      to be able to use it in pure forward.
1138    
1139    checkpoint58d_post
1140    o upgrade simple test-experiment to tutorial example:
1141     step.1: duplicate the experiment and (step.2) will remove the old copy.
1142      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1143      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1144      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1145      tutorial_global_oce_biogeo    <- copy of dic_example
1146      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1147      tutorial_plume_on_slope       <- copy of plume_on_slope
1148      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1149      tutorial_global_oce_optim     <- empty for now (David ?)
1150      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1151     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1152    o correct a sign problem in cost_scat.F
1153    o obcs and ptracers: fix boundary conditions for advections schemes
1154      with larger stencil
1155    o thsice adjoint: start
1156    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1157      completeness
1158    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1159      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1160    o ptracers adjoint:
1161      * avoid extensive recomputatations
1162      * fix missing re-init. of gptr (missed by TAF)
1163    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1164      me to turn off the excessive output to STDOUT that this package produces
1165    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1166      and add those terms in Vector-Invariant formulation.
1167    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1168      if the control period (xx_hfluxperiod etc) is 0
1169    o in profiles pkg, clean routines and fix details
1170    o in ecco pkg, reading ssh data:
1171      fix problem in case the model does not start at iter0=0
1172    o fix mnc-pickup/restart for ptracers
1173    o new package prifiles:
1174      code to compute profile-based cost by Gael Forget
1175      (modifs in ecco, ctrl, autodiff)
1176    o Benign bug fix in initialization (spotted by M. Mazloff) of
1177      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1178    
1179    checkpoint58c_post
1180    o adjoint: finish NLFS adjoint and provide reference output in
1181      verification/global_ocean.90x40x15/results_ad_nlfs
1182    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1183      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1184      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1185      with SEAICE_CGRID defined.
1186    o move calendarDumps from "data" to "data.cal" and clean-up the code
1187      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1188    o add useEXF & useCAL flags (for now, set in hard-coded way)
1189    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1190      (were missing in NH mode, and wrong in quasihydrostatic mode).
1191      waiting for Chris updated version of calc_gw to add those CALLs.
1192    o fix bug in quasihydrostatic S/R ;
1193      add a test for this option: global_ocean.90x40x15.qshyd
1194    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1195      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1196    o add on/off flag useOffLine for package OFFLINE
1197    o seaice:
1198      - modify advection so that it works also on the C-grid
1199      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1200        problem in multi-tile runs with C-grid
1201      - add flags for clipping ice velocities and/or masking solver forcing
1202      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1203        C-grid solver
1204      - added a few comments to seaice_diffusion.F
1205      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1206        are now exclusive)
1207      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1208        required re-ordering the code a little:
1209       + make DAIRN global variable (defined in SEAICE)
1210       + move computation of the viscosities eta and zeta into a new separate
1211         routine (because I need to recompute them in seaice_ocean_stress.F)
1212    
1213    checkpoint58b_post
1214    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1215      update output.txt of exp. aim.5l_cs.thSI
1216    o various mnc cleanups and improvements:
1217      + shrink lookup tables by factor of ~4
1218      + better error reporting when running out of lookup space
1219      + able to handle longer path/file names (up to 500 chars)
1220    o adjoint:
1221      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1222      - TBD: "hidden" mom_vecinv recomp. in dynamics
1223    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1224     (allow to differentiate between forcing components using new integer flags:
1225      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1226     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1227    o ecco
1228      - enable trend removal from SSH anomaly obs.
1229    o adjoint
1230      - a fix for PmEpR when #undef EXACT_CONSERV
1231      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1232      - try to fix "hidden" recomp. in forward_step for NLFS
1233        (NLFS seems broken sometimes after I checked it in)
1234    o seaice:
1235     - add c-grid version of the dynamic solver:
1236       + three new routines that are the c-grid substitute lsr, dynsolver
1237         and ostres
1238       + put a few fields that were local to dynsolver into global common
1239         blocks, so that I can move the computation of stresses etc into
1240         seaice_lsr (saves coding but may break the adjoint).
1241     - replace more hardwired parameters by runtime parameters
1242     - add ice masks that mask the rhs of the implicit solvers where there
1243       is no ice (commented out in seaice_dynsolver, because i am not sure
1244       if this works properly), eventually this should replace the clipping
1245       of ice velocities in seaice_dynsolver to +/-40cm/s.
1246    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1247      include it only where its needed
1248    o move balancing of fluxes before the call of external_forcing_surf
1249    o seaice:
1250      - correct units of turning angles (now they are really in degrees)
1251      - move computation of GWATX/Y out of main routine into dynsolver
1252      - initialize GWATX/Y in seaice_init
1253    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1254      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1255    o seaice: add runtime flags for turning angles (default to zero)
1256    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1257      and trend from exf forcing and ctrl control adjustments
1258    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1259      (since checkpoint57x_post)
1260    o change the default rotation period to 86164.s = the Earth rotation
1261    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1262      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1263    o seaice advection: add code for choosing between the default (2nd order
1264      central differences) and multiDim advection schemes provided by
1265      pkg/generic_advdiff
1266    o seaice:
1267      - removed all references to SEAICE_GRID.h fields from
1268        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1269        (cubed-sphere configuration will change a little)
1270      - grid computations in seaice_init are obsolete now.
1271      - cleaned up code a little so that is easier to read (hopefully).
1272      - added new (better?) discretizations of default advection and diffusion
1273        (turn on with SEAICEuseFluxForm)
1274      - replace 1 in 3d global fields by kSurface in growth.F
1275      
1276    checkpoint58a_post
1277    o seaice:
1278      - bug fix in advect.F
1279    o shelfice:
1280      - separate shelfice load anomaly from pload (breaks with time
1281        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1282        Its default is 0., but it may be computed more cleverly from (unknown)
1283        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1284        done offline. A good approximation of the pressure load anomaly is
1285        necessary to avoid large initial adjustment processes underneath
1286        deep-reaching shelfice.
1287      - small fix in ISOMIP shelfice_thermodynamics
1288      - add more sophisticated thermodynamics of Hellmer (1989), this is
1289        now the default
1290      - give a few constants more intuitive names
1291    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1292      if bulk formulae are used in long integration (especially EmPmR). Turn
1293      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1294      if balancePrintMean, the imbalance that is substracted is printed to
1295      STDOUT.
1296    o fix bug (typo) in obcs_apply_eta.F
1297    o add a new package shelfice which enables us to model the circulation
1298      underneath shelf-ice with draughts of hundreds of meters.
1299     - works
1300     - to do: + include improved thermodynamics
1301              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1302                instead of new field kTopC
1303              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1304                instead of new field R_shelfIce and new code in ini_depth.F
1305                and ini_mask_etc.F?
1306              + adjust vertical mixing schemes?
1307    o seaice pkg:
1308     - add a cpp-flag to include a simple formula for a salinity dependent
1309       freezing point of sea water at the surface
1310     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1311       meridional stresses are now different (and hopefully correct)
1312    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1313       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1314       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1315    o pkg/diagnostics: add options and parameters for regional-statistics
1316       diagnostics ; define regions by reading a region-mask from a file
1317       (might add other options later)
1318    o pkg/bulk_force:
1319     - add option and parameters to use AIM surface-flux formulae.
1320     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1321       others forcing fields (defined in PARM05, parameter file "data") are loaded
1322       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1323     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1324     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1325     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1326       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1327     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1328    
1329    checkpoint58
1330    o add "--embed-source" option to genmake2 which, when the supporting
1331      tools can be compiled (as determined by genmake2) will turn on the
1332      embed_files package which then embeds the entire MITgcm source code
1333      (*.[fFhc] + Makefile) used for the build within the executable
1334      - requested by CNH but off by default
1335      - adds a paltry <9MB to the mitgcmuv executable in most cases
1336      - only writes the output when useEMBEDSRC in eedata is true
1337    o clean up 3-dim. relaxation codes:
1338      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1339      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1340      * Thanks to Tom Haine for testing!
1341    
1342    checkpoint57z_post
1343    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1344      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1345    o fix the pickup behavior for obcs in combination with ptracers
1346    o fix a bug in ptracers_external_fields_load
1347    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1348      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1349    o transfered surface NH pressure to eta field (if exactConserv).
1350    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1351         and update lab_sea output.txt file.
1352    o completing 3-dim. relaxation code: additional term
1353         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1354      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1355      * At compile time, in "EXF_OPTIONS.h" set
1356          #define  ALLOW_CLIMTEMP_RELAXATION
1357          #define  ALLOW_CLIMSALT_RELAXATION
1358      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1359          tauThetaClimRelax3Dim = 15552000.0,
1360          tauSaltClimRelax3Dim  = 15552000.0,
1361      * 3 cases:
1362          1) Use a constant-in-time 3-dim. field
1363          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1364          3) Real-time relax. to time-evolving prescribed field
1365    o Adding Laplacian-type smoothness constraint on
1366      initial and boundary (forcing) controls (ic, bc)
1367      * enable at compile-time via
1368        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1369      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1370      * Absolute scale somewhat unclear so far
1371      * no area weighting was included since no other cost term does so far
1372    
1373    checkpoint57y_post
1374    First step for a NLFS adjoint
1375    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1376    o new init. routines for calc_r_star, calc_surf_dr
1377    o still need to deal with ini_masks_etc
1378    o testreport seemed happy
1379    checkpoint57y_pre
1380    
1381    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1382    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1383    o add new offset feature to offline pkg (plus minor cleanup)
1384    o cfc fixes for final year of integration
1385    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1386      be in GCHEM_OPTIONS).
1387    
1388    checkpoint57x_post
1389    o fix testreport Pb in multiple test experiment.
1390    o cleanup our namelist syntax in verification:
1391      - make it more F95 standards compliant (some work still needed)
1392      - allows the vast majority of our tests to work with gfortran
1393    o Non-Hydrostatic:
1394     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1395     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1396    o Allow to apply AB on T,S rather than on AB(gT,gS):
1397     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1398     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1399       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1400     - need a "clever" read_pickup to restart from the other AB formulation
1401    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1402    o remove some unused variables (reduces number of compiler warnings)
1403    o adjoint
1404      * Disable useVariableViscosity for adjoint for time being
1405        (there are a number of extensive recomputations)
1406      * Initialize certain variables needed for adjoint
1407    
1408    checkpoint57w_post
1409    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1410                 fix the singleCpuIO RS version of MDSWRITEFIELD
1411       and add a WARNING if using globalFiles=T with multi-processors.
1412    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1413      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1414    o tracer advection scheme:
1415      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1416       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1417       was not very convenient).
1418      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1419       (further tests needed for the implicit DST & Flux-Limiter schemes).
1420    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1421      and sRef for convenience, handy, when you want to initialize
1422      ptracers in a large domain with a constant non-zero value. Also,
1423      untangle ptracers_init.F a little.
1424    
1425    checkpoint57v_post
1426    o change dome exp. to use variable viscosity in side-drag terms.
1427    o remove all the files from the cfc_offline test since they are now
1428      incorporated into tutorial_cfc_offline which has been producing
1429      identical results for a few days of testing
1430    o add new parameter: sideDragFactor to enable half-slip-side BC
1431      and change side-drag S/R to use viscosity from mom_calc_visc
1432      (can switch back by setting sideDragFactor=0.); affects results at
1433      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1434       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1435    o vorticity & strain are now computed without masking, to account for
1436      no-slip-side BC in variable viscosity calculation ; mask is applied
1437      anyway later on, before computing advection/coriolis terms.
1438    o modify exp4 to test new obcs support for reading from external files
1439      and for passive tracers
1440    o fix behavior of ptracers_monitor when monitor output is written to a
1441      netcdf-file; still not independent of monitor.F (writes in the same
1442      file).
1443    o change default value of tRef (put a uniform, meaningful value for ocean
1444      & atmos) and initialize sRef (was missing, as Martin mentioned).
1445    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1446      to be proportional to enstrophy dissipation length.  Thus,
1447       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1448      This is now consistent with Smagorinsky and with the manual.
1449    
1450    checkpoint57u_post
1451    o OBCS and PTRACERS: add open boundary support for passive tracers
1452      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1453        OB-values from file; this is not different from the way theta and salinity
1454        are treated
1455      - however, Orlanski-radiation conditions are not supported, and the model
1456        will stop if you use pTracers and Orlanski at the same time.
1457      - beefed up the rountine obcs_external_fields_load: now only those open
1458        boundary values are overwritten with values from files for which there
1459        are really files, otherwise the OB-fields remain untouched. This makes
1460        it possible to use different OBs at different ends of the domain (as
1461        with EXF)
1462    o reduce number of exch calls in shap_filt (s2).
1463    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1464      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1465    
1466    checkpoint57t_post
1467    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1468    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1469      same truncation, independent of the face number: affects affects several
1470      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1471    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1472      note that biharmonic viscosity + no-slip was not tested in any experiment.
1473    o fix bug in non-linear free-surf side-drag ; generate new output for
1474      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1475    o make mnc honor the writeBinaryPrec flag for most kinds of output
1476    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1477    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1478      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1479    o add brackets in multi-terms sum to get same truncation, independent of
1480      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1481      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1482    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1483      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1484      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1485      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1486      Suggested values of viscosity parameters found in mom_calc_visc.
1487      Many new viscosity diagnostics available.
1488    
1489    checkpoint57s_post
1490    o Add clearing-house for viscosity calculations, mom_calc_visc and
1491      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1492      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1493      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1494      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1495      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1496      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1497      ViscAhStrain and viscAhTension are now retired.
1498    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1499    o In response to JMC's bug report, genmake2 now ignores any soft-links
1500      that it finds in the *current* directory when searching for files.
1501      Soft-links found in any other source directories will still work as
1502      they did before.
1503    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1504      a C routine to unlimit the stack size
1505    o mnc-ify pkg/aim snapshot vars
1506    o mnc-ify pkg/land as requested by Daniel
1507    o various changes to mnc including:
1508      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1509      - output can now be grouped so that all files within a group
1510          change the ITER portion of their names in lock-step together
1511      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1512          and works with both EXCH1 and EXCH2 (but needs more testing)
1513      - writing works for all verification test cases w/ g77 on Linux
1514    
1515    checkpoint57r_post
1516    o make MNC variable initialization happen earlier
1517    o add diagnostics for (almost) each term of the momentum Eq.
1518    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1519    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1520    o remove MINIMAL_TAVE_OUTPUT option ;
1521      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1522    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1523      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1524    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1525    o add time-dependent SST, SSS control
1526    o cost terms in ecco/ modularized (new cost_generic.F)
1527    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1528    o new infrastructure for seaice model vs. obs misfits in seaice/
1529      * driver from the_main_loop.F is seaice_cost_driver.F
1530      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1531      * gradient check in Exp. 6a of natl_box_adjoint/
1532    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1533      (see README file)
1534    
1535    checkpoint57q_post
1536    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1537    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1538      - bug was reported by Jean-Michel and Ian Fenty
1539    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1540      update exp. cpl_aim+ocn output.
1541    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1542      Needed for high-res. runs with large global files
1543      to be able to limit tapelev size
1544    o Changed some tests for adjoint:
1545      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1546      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1547      * global_ocean.90x40x15/ back to default 3-level checkpointing
1548    o Modifications to enable scripted COMMON to MODULE conversion
1549      * verification/OpenAD/code/ has necessary scripts and description;
1550      * converts, compiles and runs successfully;
1551    
1552    checkpoint57p_post
1553    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1554    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1555      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1556    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1557    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1558      (was already the case for dissipation with mom_vecinv,
1559       and also the case for grad.PhiHyd when staggered-timeStep)
1560      This will allow to put dissipation out-off the AB time-stepping.
1561     Unfortunately, affects truncation error. Update output of exp. that "fails"
1562      (cg2d matching number) and leave the others for later: front_relax(10),
1563      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1564      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1565    
1566    checkpoint57o_post
1567    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1568      (2) its ready to be documented during the 20050801 DocFest
1569    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1570      for ideal_2D_oce and lab_sea on linux_ia32_g77
1571    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1572      in global1x1_tot/code_seaice_adj to access indices 32, 33
1573      (worth another tag)
1574    
1575    checkpoint57n_post
1576    o adding precip control xx_precip 32
1577    o adding swflux control xx_swflux 33
1578    o Replacing 10 forcing penalty cost routines by 1 generic.
1579    o Implementing partitioning in time-mean and variable adjustment
1580      for atmos. state.
1581    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1582    o in natl_box_adjoint:
1583      * updated exp 1 to 10
1584        (but does not have time-mean vs. variable split results yet)
1585    o updated global1x1/*_seaice_adj/
1586      to incorporate latest changes
1587    o enable useSingleCpuIO for mdsio vector routines
1588      (applies in particular to tapelev I/O)
1589    o removed inefficient K-loop in all active_file*control*.F
1590    
1591    checkpoint57m_post
1592    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1593      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1594    o pkg/exch2: filling of face-corner halo regions is optional
1595      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1596    
1597    checkpoint57l_post
1598     tag before updating tutorials (pre-release-2)
1599    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1600       for output and interpolation of input fields onto model grid)
1601    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1602       Affects results of exp. rotating_tank ; update output.txt.
1603    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1604          and taking the square quantity and/or using a fraction-weight field.
1605    o fix aim_diagnostics_init.F mate numbers.
1606    o add mnc output capability to diagnostics/diagstat and update
1607      our cvsignore files for the ACSII output generated
1608    
1609    checkpoint57k_post
1610    o lab_sea now uses diagnostics package and provides a suite of
1611      new EXF diagnostics output.
1612    
1613    checkpoint57j_post
1614    o exf
1615      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1616        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1617        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1618      * extended diagnostics output
1619        - now includes all EXF variables
1620        - hs, hl moved to common block
1621        - separate S/R for diagnostics, called after ctrl vector is added
1622        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1623        - EXFqnet contains true Qnet (i.e. includes qsw)
1624      * updated verif. lab_sea, global_with_exf
1625      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1626        to ensure that diagnostics sees a true EXFqnet
1627    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1628    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1629      several times with different frequencies.
1630    o mnc-ify the thsice package as requested by Daniel Enderton
1631      - the monitor--MNC output needs work
1632      - many attributes need to be added (most are currently blank)
1633    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1634      - many attributes need to be added (most are currently blank)
1635    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1636    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1637    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1638      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1639         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1640    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1641     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1642    
1643    checkpoint57i_post
1644    o Diagnostics package was changed: diagnostic allocation is now deactivated
1645      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1646    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1647      add 1rst Order upwind vertical Shear.
1648    o add a quick fix for A/B checkpointing in OFFLINE mode
1649    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1650      end-run around the C/Fortran linking horror in eesup/src/timers.F
1651    o added pkg/runclock: allows user to terminate run based on wall clock
1652    o added non-hydrostatic scaling parameter: nh_am2
1653    o pkg/my82: futile attempt to make results compiler-independent by adding
1654      some "_d 0", etc. no effect.
1655    o for mnc output, fill the 'T' coordinate var with myTime and create a
1656      separate 'iter' variable for iteration count
1657    o pkg/diagnostics:
1658      add new capability: output of Global/Regional & per-level statistics ;
1659      tested against monitor output (including land & thSIce) on various exp.
1660    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1661    
1662    checkpoint57h_done
1663      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1664      data.diagnostics, data.gchem, data.ptracers) is done.
1665    
1666    o pkg/diagnostics: prepare for Global/Regional statistics.
1667      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1668    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1669      and rename it: DIFFERENT_MULTIPLE
1670    
1671    checkpoint57h_post
1672    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1673    o pkg/diagnostics: change output frequency, now in seconds (instead
1674      of Nb of iterations). This requires to change data.diagnostics.
1675    checkpoint57h_pre
1676    
1677    o in mnc, let the user create the output dir if both mnc_outdir_date
1678      and mnc_outdir_num are false
1679    o add fflags() to pkg/diagnostics which allows one to specify, on a
1680      per-file basis, the file precision [default behavior is unchanged]
1681    o added diagnostics to pkg/kpp, including computation of mixed layer
1682      depth based on a temperature/density criterion
1683    o updated verification/natl_box to test the new pkg/kpp diagnostics
1684    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1685    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1686    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1687      not mnc -- this mistake was found by JMC and is now corrected
1688    
1689    checkpoint57g_post
1690    o add Adams-Bashforth 3rd Order time stepping:
1691      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1692      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1693    checkpoint57g_pre
1694    
1695    o make lambda[Theta,Salt]ClimRelax spatially varying
1696      (default remains spatially uniform constant based on tau)
1697    o added new control variables
1698      * init. uVel, vVel, etanN
1699      * lambda[Theta,Salt]ClimRelax
1700    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1701      (suggested by G. Forget)
1702    
1703    checkpoint57f_post
1704    o add parameter "baseTime" = model base time = time at iteration zero
1705      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1706      account for baseTime shift
1707    o move Coriolis arrays from PARAMS.h to GRID.h
1708    checkpoint57f_pre
1709    
1710    o mnc-ifying the seaice package
1711    o introduced an alternative length scale calculation for use in the limiting
1712      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1713    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1714    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1715      as well as grad(vort3).  Made it compatible with both approximate form
1716      for the cubed sphere and full form of these gradients.  Added flag
1717      useFullLeith to select between approximate and full form.  
1718    o add "d0" in getcon.F to reduce differences between compilers/platforms
1719      update output.txt of exp. fizhi-gridalt-hs
1720    o change port_rand funtion to allow to set the seed.
1721    o fix obscure MNC bug involving conversion between reals and integers
1722      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1723        new version is now more standards-compliant
1724    o adjoint-related modifications
1725      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1726      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1727      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1728    
1729    checkpoint57e_post
1730    o Adding eddy stress controls a la Ferreira et al.
1731    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1732    
1733    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1734      update output.txt of exp. fizhi-gridalt-hs
1735    o add more "Z" dimensions and associated coordinate vars to MNC
1736    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1737    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1738      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1739      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1740      months and years.  Requires pkg/cal.
1741    o diagnostics: add pickup functionality
1742      - off by default for backwards compatibility
1743      - current version only uses MDSIO -- MNC will be added
1744    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1745    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1746    
1747    checkpoint57d_post
1748    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1749    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1750      output from the diagnostics package
1751    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1752    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1753      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1754    o add coordinate variables to the MNC output from the diagnostics package
1755    o change MNC-flags default value: true when useMNC=TRUE
1756    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1757      the ability (off by default) to read the grid information using MNC
1758    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1759    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1760    o do snap-shot diagnostics at the middle of the time-interval (instead of
1761      at the end).
1762    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1763      new test for AIM with thSIce + slab-ocean
1764    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1765    o move state variable diagnostics to the beginning of the time step ;
1766      (note: still needs some work specially for snap-shot diagnostics)
1767      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1768    
1769    checkpoint57c_post
1770    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1771    o generate new output.txt files on faulks with g77 & the new -ieee option
1772    checkpoint57c_pre
1773    
1774    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1775      update output.txt of exp. global_ocean.90x40x15
1776    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1777      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1778    o add saltFlux(+File) forcing capability with periodicExternalForcing
1779    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1780    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1781    o improvements for the MNC output from DIAGNOSTICS:
1782      - correct handling of the unlimitied dimension
1783      - all dims now have associated coordinate variables
1784      - variables located at U, V, and Corner ("Z") points are now written
1785        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1786        *all* data points are output
1787    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1788    o added pkg/seaice/seaice_monitor.F
1789    o mdsio_readfield.F can now read files visible only to master MPI process.
1790    o pkg/seaice: some test code for ice-modified ocean stress
1791    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1792      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1793      spurious negative numbers for precipitation and humidity.  Will cause
1794      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1795    o pkg/ctrl/
1796      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1797        May be enabled via doPackDiag
1798      *  introduce z-scaling of
1799         + gradient (doZscalePack) and
1800         + control (doZscaleUnpack)
1801    o pkg/mdsio/
1802      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1803      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1804    
1805    checkpoint57b_post
1806    o simplify options in diagnostics_fill arguments (remove weird combinations)
1807    o fix MNC coordinate variables so that they now contain per-face index
1808      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1809      general, EXCH2 grids are only aligned to a "local" coordinate system
1810    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1811    o Implement instantaneous output within pkg diagnostics:
1812      setting a negative frequency in data.diagnostics produces
1813     "snap-shot" output (as opposed to time-average if freq > 0)
1814    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1815      NOTE: change ptracer diagnostics name: use 2 characters to work with
1816            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1817    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1818      becomes the coordinate variable for the 'T' dimension
1819    o add CF-style coordinate variables to MNC
1820      - just a first cut:  numbers are meaningless on the cubesphere and
1821        missing along the T axis but otherwise it works!
1822    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1823    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1824    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1825      this is based directly on what the model compute, so that the content of
1826      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1827    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1828    o clean up build options files for SunOS, in particular
1829      - remove -traditional from xmakedepend
1830      - change -xarch=v9 to -xarch=native for f77
1831      - restore use of make (not gmake)
1832      - add CC=gcc if using g77
1833    o changes per discussion of AM, JMC, & EH3 today:
1834      - move redundant "grid" variables out of "state" -- in preparation of
1835        creating proper CF-style coordinate variables and in recognition
1836        that any/all grid variables can be easily copied (eg. w/NCO) from
1837        the grid files into any of the other NetCDF files
1838      - *always* output grid variables with MDSIO (this will eventually be
1839        changed)
1840      - output MNC grid file if useMNC is true
1841    o every instance of _END_MASTER() has been found and replaced with
1842      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1843      preprocessors
1844    o re-arrange diagnostics pkg initialisation:
1845     - allow each package to extend the available diagnostics list
1846     - add some checking and fix small problems (multi-threaded, ...)
1847     - new S/R diagnostics_fill (replace fill_diagnostics):
1848       look through the short list of active diag. (instead of the long list)
1849       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1850    
1851    checkpoint57a_post
1852    o this set of changes restores TAMC compatibility
1853      tested for global_ocean.90x40x15 adjoint on trough
1854      (what a pain)
1855    
1856    checkpoint57a_pre
1857    o some modifs in tools/build_options for sunos
1858    o call ctrl_pack for ctrl at end for optimcycle=0
1859    
1860    checkpoint57
1861    o add horizontal bi-harmonic viscosity for vertical velocity
1862      - new parameter viscA4W (defaults to viscA4)
1863      - affects only non-hydrostatic code
1864      - to be done: no-slip lateral boundary conditions
1865    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1866    o implement Implicit Vertical advection for pTracers
1867    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1868      (implemented also for implicit vertical diffusion & advection)
1869    o OBCS: extend application of tracer open boundary conditions
1870      to a strip beyond the boundary of width Olx/Oly
1871    o add call monitor to TAF set of required calls (flow directives)
1872      and include in natl_box_adjoint
1873    o untangle a few ifdefs related to cost, ctrl, autodiff
1874      untangel a few ALLOW_ECCO_OPTIMIZATION
1875    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1876      (theta2, salt2 in ecco_cost_weights)
1877    
1878    checkpoint56c_post
1879    o OBCS as control variables
1880      - update ctrl_ad_diff.list, obcs_ad_diff.list
1881      - remove balance of obcs controls from default
1882      - fix index bug nobcs in ctrl_init
1883      - fix dummy fields filen in ctrl_pack
1884      - add dummy weights for obcs
1885    o lsopt: comment out fort.94 output
1886    o optim:
1887      - remove unnecessary header files
1888      - adjusted namelists
1889      - add xerbla.F to Makefile
1890    o exf:
1891      - multiple modifications of exf_check_range
1892      - unit change in exf_init_runoff from [m/year] to [m/s]
1893    o mdsio:
1894      - i/o-vector change debugLevel from debLevA to debLevB
1895    
1896    checkpoint56b_post
1897    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1898      is called from DO_THE_MODEL_IO
1899      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1900      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1901      - clean up PTRACERS_WRITE_TIMEAVE a little
1902    o add another verification experiment that tests both the cfc-pkg and
1903      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1904      reactive tendencies treated inline with regular timestepping
1905    o testreport previously did a lousy job of comparing small numbers, so
1906      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1907      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1908      testreport.
1909    o ptracers_monitor: bug fix for MPI
1910    
1911    checkpoint56a_post
1912    o GCHEM: finish reorganizating the package
1913      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1914        (introduces another 3D-array for each passive tracer, but only if
1915        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1916        gchemTendency is not needed because the timestep is done separately)
1917      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1918      - GCHEM is now---more or less cleanly---separate from PTRACERS
1919      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1920        so clear to me how that should be done in a general way.
1921    o CFC: improve formatting of output in CFC_ATMOS
1922    o PTRACERS:
1923      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1924        that ALL experiments with ptracers enable can be checked. This makes
1925        GCHEM_MONITOR obsolete.
1926      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1927        monitorFreq
1928      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1929    o add PTRACERS (PTR0[1-5]) to testreport output
1930    o exf_check_range:
1931      * default changed to .TRUE.
1932      * will check values for niter0 if debLevA, every timestep if debLevB
1933      * STOP in exf_check_range if 'out of range'
1934      * range chosen generous to allow for potential extema
1935      TBD: a version with stricter range
1936           permitted range would be runtime parameters
1937    o GMredi:
1938      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1939      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1940      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1941    o GCHEM:
1942      - move call to GCHEM_FORCING_SEP, so that it is now called before
1943        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1944      - introduced a useGCHEM runtime flag and applied it everywhere.
1945      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1946        this flag is now only visible within GCHEM-pkg routines.
1947      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1948        be replaced by a 3D array that is computed before thermodynamics; for
1949        this, the tracer ID iTracer had to be included into the parameter list
1950        of ptracers_forcing
1951      - set up forward_step to call gchem_forcing, that will replace
1952        gchem_forcing_int in ptracers_forcing
1953      - cleaning up
1954    o small cleaning of exch2: remove files that are also in eesupp/src
1955    
1956    checkpoint56
1957    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1958    o mnc: cleanup "full" files--fixes out-of-memory problem
1959    o ECCO-GODAE
1960      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1961      * fully merged and updated from SIO code
1962        windstress sign change affects
1963        - exf_inscal_[u/v]stress
1964        - sign of xx_tau[u/v] adjustments
1965        - signs in cost_scat
1966      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1967      * natl_box_adjoint updated and compressed
1968      * 2-level checkpoint switch added
1969        (tested in EXP. 1 of natl_box_adjoint)
1970      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1971    o SVD
1972      * first complete, non-hacked version for SVD calculations
1973      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1974        performed via direct access files admtlm_vector.it????
1975        (via ctrl_[un]pack)
1976      * optimcycle is used for ARPACK iteration counter
1977        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1978      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1979        and add linear transforms where necessary
1980      * controls are initial/final SST, SSS (can be extended; need to check
1981        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1982    o mdsio: filename info to both stderr, stdout
1983    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1984      from sign change
1985    
1986    checkpoint55j_post
1987    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1988      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1989    o add consistent build directories and .cvsignore files to verification
1990    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1991    o make all subroutines 30 or less characters in length for certain older
1992      compilers to work (a thorough search only turns up two routines in
1993      pkg/ptracers)
1994    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1995      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1996    
1997    checkpoint55i_post
1998    o change arrays for total vertical diffusivity (2.D if explicit,
1999      3.D if implicit) ; each ptracer uses its own background value.
2000    o added mnc/NetCDF output capability to ocn_compon_interf
2001      - added bits to verification/cpl_aim+ocn so that it can run on
2002        ITRDA and other clusters without the mpirun "-wd" option
2003    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2004      configuration
2005    o give MNC the ability to create additional files rather than
2006      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2007      - the default is just less than 2GB which is a practical limit
2008        on many systems
2009    o Compute the non-local term using either KPP vertical diffusivity (=default)
2010       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2011    
2012    checkpoint55h_post
2013    o add verification test "vermix"
2014    o remove all the *_ioinc flags and replace with the single global
2015      outputTypesInclusive flag
2016    o allow to set a vertical profile of vertical diffusivity for T & S
2017    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2018    o useMNC moved from data.mnc to data.pkg
2019    
2020    checkpoint55g_post
2021    o Renaming carbon AD experiments to comply with testreport conventions
2022    o Updating adjoint of Held-Suarez hs94.1x64x5
2023    o Fixing directives for non-ECCO forward_step, after ECCO directives
2024      have been fixed to avoid recomp. of do_oceanic_phys
2025      Works well for global_ocean.90x40x15,
2026      but recomp. issue remains for carbon
2027    o Updating adjoint output for natl_box_adjoint after
2028      pkg/ecco has been modified (see taga c55d_post)
2029    
2030    checkpoint55f_post
2031    o rename to timeave_init_fixed
2032    
2033    checkpoint55e_post
2034    o some delicate re-shuffle of store directives to avoid one
2035      extra call of do_oceanic_physics
2036      affects ecco_the_main_loop.F, do_oceanic_physics.F
2037      checkpoint_lev1_directives.h
2038    o NB: this may break global_ocean adjoint temporarily,
2039      but it is clear how to fix it. Will do later, need this now.
2040    
2041    checkpoint55d_post
2042    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2043    o ecco_cost_weights is modified to 1x1 runs
2044    o modifs to allow observations to be read in as
2045      single file or yearly files
2046    o enable to read exf forcing fields as either
2047      single file or yearly files (flag useExfYearlyFields)
2048    checkpoint55d_pre
2049    
2050    o switch between 2-level and 3-level checkpointing
2051    o add ability of MNC to write local and "partial" (eg. 2D slices where
2052      the full 3D field is never actually stored) arrays to NetCDF files
2053      with the correct (that is, the complete multi-dimensional) set of
2054      array indicies
2055      - used in mom_vecinv() to write the diagFreq output
2056      - tested (demonstrated) in verification/aim.5l_cs
2057    o further mnc-ification
2058      - add verification/lab_sea to the list with mnc setups
2059      - fix undefined mnc v-names in cd_code
2060      - add kpp to mnc output (both snapshot and timeave)
2061    o non-hydrostatic code
2062      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2063        in calc_gw.F
2064      - defaults to viscAh
2065      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2066        friction or Leith) in non-hydrostatic mode, as long as there is
2067        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2068    o pkg/cost
2069      extend simple cost functions to treat time mean quantities
2070      (T,U,V) via cost_accumulate_state from cost_tile
2071    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2072        be 2 times larger than the minimum size the advection scheme requires.
2073        now get a perfect conservation of salt in advect_cs test-exp (updated)
2074    o GGL90 (Gaspar's TKE mixed layer)
2075      - add horizontal diffusion of TKE, requires exchanges in
2076        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2077        default. In OPA there is no horizontal diffusion of TKE but the
2078        mixing coefficients are computed from a horizontal average of TKE of
2079        6 points or so. I think that diffusion has a little more physical
2080        justification.
2081      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2082        was in vain)
2083      - mask tke-variable in ggl90_init
2084    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2085    o fix biharmonic diffusion on CS-grid.
2086    o more obcs stuff
2087      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2088        for reading boundary values. This routine is called from
2089        obcs_prescribe_read
2090      - updated obcs_check
2091      - changed sponge layer relaxation parameter units for days to seconds
2092      - turned off sponge layer by default
2093      - changed argument list of OBCS_CALC to myTime+deltaTclock
2094      - fixed about 35 bugs in obcs_external_fields_load
2095    
2096    checkpoint55c_post
2097    o obcs stuff
2098      - new runtime flags useOBCSprescribe, useOBCSbalance
2099      - re-arranged obcs_calc
2100      - moved exf_getobcs to obcs_prescibe_read
2101        obcs_prescibe_read is called after ORLANSKI stuff
2102        and independent of it (executable can contain all).
2103      - updated obcs_check
2104      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2105        These may be necessary only if tangential velocities are
2106        prescribed at OB, not sure, needs testing.
2107    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2108      which simplifies the calls and passes the ifc check-bounds test
2109    
2110    checkpoint55b_post
2111    o add a 2D scalar, Z location, exchange_2 routine.
2112    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2113      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2114      affects advect_cs results (for the wrong reason): update output.txt
2115    o use a more standard discretization for biharmonic viscosity ;
2116     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2117      affects results of dome set-up: update output.txt
2118    o fix gad_advection.F (CubedSphere part), back to version 1.23
2119    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2120    
2121    checkpoint55a_post
2122    o merged code to
2123      * prescribe/read time-dependent open boundaries
2124        (works in conjunction with exf, cal)
2125      * sponge layer code for open boundaries
2126      * each boundary N/S/E/W now has its own CPP option
2127        (healthy for the adjoint)
2128    
2129    checkpoint55
2130    o up-to-date adjoint of previous breaks
2131      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2132      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2133      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2134      - carbon: * remove tr1-related adjoint verification
2135                * add ptracer as control variable
2136    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2137      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2138    
2139    checkpoint54f_post
2140    o in verification/carbin/ remove experiment related to
2141      ALLOW_PASSIVE_TRACER (array tr1 etc)
2142      code_ad/ input_ad/ results_ad
2143    
2144    o add two new packages
2145      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2146        + subject to optimization (memory)
2147      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2148        + subject to reordering (many GOTOs in the original code)
2149        + so far opps is called for every (i,j) point, and then operates in
2150          the vertical; one may want to reorder the scheme in order operate in
2151          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2152          fields)
2153    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2154      - all verification tests compile and run with linux_ia32_g77
2155      - defaults are compatible with current input files--nothing
2156        should change if you were not previously using MNC
2157      - MNC output has been added in numerous places (eg. timeave)
2158        but there are still a few writes not yet do-able with MNC
2159        (this is in progress)
2160      - flags now allow for either/or/both use of MDSIO and MNC and
2161        documentation will soon follow
2162      - numerous small formatting cleanups for ProTeX
2163    o add version info (via BUILD_INFO.h) to MNC and stdout
2164    
2165    checkpoint54e_post
2166    o add two new packages
2167      - pp81 (Packanowski and Philander, 1981), Richardson number and
2168        stratification dependent mixing
2169      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2170      - these scheme operate in a similar manner as KPP (without ghat, of
2171        course), however there is only one diffusivity that is used for both
2172        temperature and salinity (and passive tracers)ç
2173    o add offline package
2174    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2175      provided by Stephanie Dutkiewicz
2176    o genmake2: add ability to search for C compilers and cleanup test output
2177      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2178    
2179    checkpoint54d_post
2180    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2181    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2182      leading to additional shift by 5 days each year of integration
2183       (i.e. leading to considerable offset over the years)
2184    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2185    o start with no AB and no initial filtering (staggerTimeStep):
2186      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2187    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2188      (external loading & cpl import/export stay in forward_step.F)
2189    o update coupling interface to work with new staggerTimeStep
2190    o change MDSIO ptracers_pickup.
2191    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2192    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2193    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2194    
2195    checkpoint54c_post
2196    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2197      this affects (truncation error) output.txt of test-exp:
2198       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2199    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2200    o change Qnet to always be the net heat flux, (+upward).
2201      affects (truncation error) output of natl_box exp.: updated
2202    o define the max number of passive tracers in PTRACERS_SIZE.h
2203    o start to test mnc routinely in exp0
2204    o add sea-ice loading (sIceLoad) as a new forcing field.
2205    
2206    checkpoint54b_post
2207    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2208       impressive on Altix and Opteron systems)
2209    o diagnostics can now write NetCDF files through the mnc package
2210    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2211    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2212    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2213      affects (truncation error) output of lab_sea & natl_box exp.: updated
2214    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2215    
2216    checkpoint54a_post
2217    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2218    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2219    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2220    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2221      + internal_wave (shift in writing cg2d_ini_res)
2222    checkpoint54a_pre
2223    
2224    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2225      - modified verification/lab_sea and natl_box_adjoint accordingly
2226    
2227    checkpoint54
2228    checkpoint53g_post
2229    o prepare splitting of thermodynamics: store convect.counter in common block
2230    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2231      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2232    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2233    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2234    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2235    o restore adjointability
2236    
2237    checkpoint53f_post
2238    o modifications that affect AIM experiment results (update output.txt):
2239      - no advection of S at top interface Nr (pkg/generic_advdiff)
2240      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2241    o AIM pkg:
2242      - include stability function into surf.Flux derivative relative to Tsurf
2243      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2244    
2245    checkpoint53e_post
2246    o merged cylindrical coord configuration
2247    o added rotating_tank experiment
2248    checkpoint53e_pre
2249    
2250    checkpoint53d_post
2251    o faulks upgraded: re-generate output.txt that have changed:
2252       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2253    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2254    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2255    o added Sadourny discretization of Coriolis
2256      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2257      - re-enabled use of omega3 (useAbsVorticity)
2258    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2259      vector-invariant equations
2260      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2261    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2262      hopefully without new bugs
2263      - still to do: biharmonic friction for non-hydrostatic w
2264    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2265    o regenerated output for global_ocean_ebm (using -ieee)
2266    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2267      of mom_common/
2268      - simple re-arrangement of instructions within computing loop
2269    checkpoint53d_pre
2270    
2271    checkpoint53c_post
2272    o new version of coupler for AIM+thSIce and Ocean models
2273     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2274     - land: change Evaporation of snow
2275     - aim with thSIce: fix bug in snow-precip.
2276    o changes to calc_gw.F
2277     - bug fix for w^2 term near the bottom boundary
2278     - (hopefully) improve the lateral slip boundary condtions for use with
2279        partial/looped cells
2280      - because the bug fix changes two verification experiments anyway (exp5
2281        and plume on slope), change the lateral boundary condition from half slip
2282        to the value of no_slip_sides
2283    o ebm package wasnt quite up to the parallel task. Fixed that.
2284    o Adjoint of EBM package + verification
2285      * TLM OK
2286      * ADM not sufficient accuracy yet (needs further testing)
2287    
2288    checkpoint53b_post
2289    o Commiting new energy balance model to repository
2290      * package is pkg/ebm
2291      * verif. is verification/global_ocean_ebm
2292      * references are in ebm_driver.F
2293    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2294    C        Global thermohaline circulation. Part I:
2295    C        Sensitivity to atmospheric moisture transport.
2296    C        J. Climate 12(1), 71-82
2297    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2298    C        Global thermohaline circulation. Part II:
2299    C        Sensitivity with interactive transport.
2300    C        J. Climate 12(1), 83-91
2301    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2302    C        Destabilization of the thermohaline circulation
2303    C        by atmospheric eddy transports.
2304    C        J. Climate 7(12), 1870-1882
2305    o Will need long integration testing.
2306    checkpoint53b_pre
2307    
2308    o created pkg/mom_common in preparation for variable viscosity code
2309    o renamed and split ini_mnc_io
2310    o pkg/land: only liquid water can diffuse or run-off
2311    o AIM using land: soil wetness availability account for snow
2312    o added printMapIncludesZeros to EEPARMS namelist
2313    
2314    checkpoint53a_post
2315    o restore TAMC compatiility for exf_constants.h
2316      (no usage of _d in .h)
2317    o Additional storing in KPP in an attempt to fix
2318      TAMC problem with adjoint of KPP code.
2319      (no success...)
2320      Identical code works fine with TAF.
2321    o Fixed verification/natl_box_adjoint experiments.
2322      Initial conditions for Experiments 4 and 5 are now
2323      set to "SEAICE_initialHEFF=0", which is more reasonable,
2324      and hence gives results closer to that of Experiment 2.
2325      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2326    
2327    checkpoint53
2328    o stable checkpoint with up to date adjoint
2329      TLM tests only run for 1st grdchk at the moment. Its unclear if
2330      this is a code problem or a problem with resetting code for g_
2331      variables that is being autogenerated wrong.
2332      Otherwise:
2333       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2334       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2335         are both still in chaos following their security messes.
2336    
2337    checkpoint52n_post
2338    o various build (mostly genmake2) changes including:
2339      - ability to build/run more easily within Cygwin and MacOS X
2340      - more complicated Makefiles with a stronger dependence on Gnu Make
2341    o pkg/seaice modifications
2342      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2343        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2344        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2345      - changed proxy for geostrophic velocity and updated
2346        verification/lab_sea/results/* accordingly
2347      - removed ADI dynamic solver from pkg/seaice
2348      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2349        they caused a segmentation fault under certain circumstances
2350      - removed unused field WATR
2351    o bug fix in exf-package:
2352      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2353         now reflect that.
2354    o small fixes in the cal-package:
2355      - set reference date to first of January for the 'model'-calendar
2356      - failing of cal_CheckDate in cal_FullDate now actually results in a
2357        warning
2358    o small modifications in exf-package to increase flexibility:
2359      - change climtempfreeze from a constant to a runtime parameter that
2360        is specified in data.exf_clim (default = -1.9)
2361      - introduce runtime parameter windstressmax (default = 2.0) that is
2362        specified in data.exf
2363    o fix in pkg/thsice:
2364      - update Evap (Tsf changes) to be consistent with Latent heat flux
2365      - maintain snow precipitation unchanged (even if Tsf >=0).
2366     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2367    
2368    checkpoint52m_post
2369    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2370      this does not change any of the results, because myIter=0 in swfrac always
2371      lead to jwtype=2 (the default anyway), but the call makes little sense
2372      as a default
2373    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2374    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2375      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2376    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2377    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2378    o extending useSingleCpuIO option to work with new exch2 I/O format
2379      - old-style, missing-tile I/O is still accessible by defining CPP
2380        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2381    o monitor package can write to NetCDF files and/or STDOUT
2382    o fix re-definition bug in MNC_GRID_INIT_ALL()
2383    o doc/api_reference added
2384      - a framework for building an API Reference Manual using all
2385        the "protex" comments embedded in the code
2386      - see pkg/generic_advdiff, pkg/mnc for examples
2387    o MNC:
2388      - make myThid the last argument for all subroutines
2389      - new default for the grid files: NO halos
2390      - add useMNC and other run-time flags
2391      - separate per-file-group handling of the unlimited dimension
2392      - early initialization of MNC w/ flags read at the eeboot stage
2393        and lookup tables set in initialize_fixed
2394      - write all MNC output to a freshly-created directory
2395    o thermodynamics sea-ice (thsice) is now tested with testreport.
2396    o test exp. advect_cs: use the standard cs32 grid ; update output.
2397    o Added functionality to grdchk:
2398      pick global i,j,k position (or nearest wet) where to perform check.
2399    
2400    checkpoint52l_post
2401    o new land formulation:
2402      a) use ground enthalpy as prognostic variable to ensure exact
2403         energy conservation.
2404      b) account for water temperature and for latent heat of freezing
2405         in all processes (rain, run-off, ground storage)
2406      c) compute surface and ground temperature implicitly.
2407    o aim_v23 modification for new land model:
2408      a) Treat separately land / ocean / sea-ice surface fluxes
2409         to allow implicit computation of land & sea-ice surface temp.
2410      b) add snow precipitation.
2411    checkpoint52l_pre
2412    
2413    o fix problem (when 1 tile is empty) in min/max monitor.
2414    o fix bug in timeAve (u,vZetatave in common block)
2415    o no restoring terms under ice for pkg/seaice
2416    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2417    o bug fix for pkg/seaice pickups
2418    o change MNC call locations and add coordinate attributes
2419    o mask vorticity at the corner ; affects global_ocean.cs output
2420    o fix ini_curvilinear_grid ; test CS experiments with mpi
2421    o aim.5l_cs: modify sea-ice fraction input file ; update output
2422    o exf: Adding simple range check routine for exf fields after read
2423    
2424    checkpoint52k_post
2425    o removed top-level directory "diags"
2426      - we migrated these functions to pkg/timeave a long time ago
2427    o fixed bug introduced in pkg/monitor
2428    o accuracy ctrlprec = 32 insuffient for gradient checks using
2429      averaged fields (I/O via cost_averages)
2430      -> use ctrl.h in active_file*.F to control I/O precision.
2431    o paramter list of CALL ADTHE_MAIN_LOOP
2432    o added initial do_the_model_io to ecco
2433    o set all ...Freq to zero after cost_final
2434      taveFreq, dumpFreq, pChkptFreq
2435    o MAIN and ECCO differentiability restored
2436    
2437    checkpoint52j_post
2438    o fix nchklev in tamc.h for global_ocean...
2439    o Bringing flow and store directives up-to-date
2440    o Really weird thing!
2441      call do_the_model_io from the_main_loop with parameters
2442      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2443      TAF places a faulty re-call of initialise_varia
2444      after cost_final call which should not be there!
2445    checkpoint52j_pre
2446    
2447    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2448      error messages
2449    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2450    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2451      debug output
2452    o modfied mdsio_writefield.F to handle non-global files under exch2
2453    o update AIM Cubed-Sphere exp (aim.5l_cs):
2454      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2455    o update AIM Equatorial Channel exp:
2456      use standard aim_v23 pkg and change the SST fields to be more realistic.
2457    o globalFile now works with exch2
2458    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2459      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2460    o limit timeave output for hi-res integrations
2461    
2462    checkpoint52i_post
2463    o removed CPP_EEOPTIONS.h from verification/*/code
2464    o updated the tiling for global_ocean_pressure
2465    checkpoint52i_pre
2466    
2467    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2468      the old pkg/aim).
2469    
2470    checkpoint52h_pre
2471    o shortened offending lines in exch2_send_rx?.template
2472    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2473    o genmake2: add build & execute test for NetCDF code
2474    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2475      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2476    o added useSingleCPUIO flag to monitor.F and mon_out.F
2477    o added temporary hack for sea-ice dynamics on the cube:
2478      metric terms are ignored and it is assumed that
2479      there is no sea-ice on cube faces 1, 2, 4, and 5.
2480    
2481    checkpoint52f_post
2482    o added exch2 cube routines to pkg/exch2
2483    o modified hs94.cs-32x32x5 to use it
2484    o added new grid files to hs94.cs-32x32x5
2485    checkpoint52f_pre
2486    
2487    checkpoint52e_post
2488    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2489      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2490    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2491      to work with implicit vertical advection and AB ;
2492    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2493    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2494     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2495    checkpoint52e_pre
2496    
2497    o fix bug in impldiff when Nr=1 or Nr=2.
2498    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2499    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2500    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2501      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2502    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2503    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2504    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2505    
2506    checkpoint52d_post
2507    o re-tiled many expts to allow comparison in multi-processor mode
2508      - updated output accordingly
2509      - changed hs94.128x64x5 to use intial T from file rather than use the
2510        random number generator
2511    o add infrastructure in model routines for fizhi and gridalt packages
2512    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2513    o changes to permit hi-res, cubed-sphere, configuration
2514      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2515      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2516      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2517        of surface winds for the cube
2518      (A verification experiment, based on global_ocean.cs32x15, but with
2519       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2520       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2521       complete with example surface forcing files and matlab scripts to look
2522       at the output and compare it with that of global_ocean.cs32x15.)
2523    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2524       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2525       to conform to the common rule.
2526    o check-in the first version of the coupler + interfaces for multi-components
2527       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2528       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2529       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2530       - ocean and atmos. share the same horizontal grid (no interpolation).
2531       - exchanges between component and coupler is done in forward_step
2532    o new verification experiment, cpl_aim+ocn:
2533       coupled ocean - AIM atmosphere on cs32 grid.
2534    
2535    checkpoint52d_pre
2536    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2537    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2538    
2539    checkpoint52c_post
2540    o Fixing OPTIONS files for use of exf:
2541      - ALLOW_ECCO not needed
2542      - ECCO_CPPOPTIONS.h should not be included from
2543        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2544        as has been the case in the past
2545      - All cal/exf related options are currently set in
2546        single header file. Should remain so until we
2547        agree on a consistent new policy.
2548    o Removed all CPP options for cal package.
2549      cal has no more CPP options.
2550    o modified STOREs in GAD_ADVECTION
2551    o corrected key comp. for passkey
2552    
2553    checkpoint52b_post
2554    o new version: "thsice" of thermodynamic sea-ice pkg:
2555     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2556     - modify fluxes but do not change theta directly;
2557     - light cleaning of bulk_force pkg (still needed with thsice).
2558     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2559       + output_thsice.txt to test thsice & bulk_force pkgs.
2560    o put back grid & coriolis monitor output.
2561    checkpoint52b_pre
2562    
2563    o call "do_the_model_io" at the beginning (=> dump initial state)
2564    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2565    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2566      (need info on NUMBER_OF_PTRACERS)
2567    o missing PTRACERS headers in some routines
2568    o default tamc.h in pkg/autodiff supposed to crash
2569      to ensure proper customization
2570    
2571    checkpoint52a_post
2572    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2573      - moved surfaceTendencyTice from pkg/seaice to main code
2574      - subroutine FREEZE_SURFACE now limits only surface temperature
2575        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2576        => new output.txt for global_ocean.cs32x15 & global_with_exf
2577      - keep the old version of FREEZE for backward compatibility;
2578        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2579      - corresponding modifs for TAF directives
2580    o added surface flux output variables to TIMEAVE_STATVARS
2581    o time-averaged output for pkg/ptracers
2582    o fix problem with ECCO-related divided adjoint
2583      snapshot file was missing some ad-variables,
2584      but no warning issued by TAF
2585    
2586    checkpoint52a_pre
2587    o some bug fixes for #undef REAL4_IS_SLOW
2588    
2589    checkpoint52 = ecco_c52_e35
2590    o after testing adjoints of checkpoint51u_post
2591    
2592    checkpoint51u_post
2593    o this is the post-merge tag of the ecco-branch
2594      (needs another clean checkout and re-testing)
2595    o various natl_box_adjoint configs and results
2596      but no input fields
2597    o obcs adjoint not yet merged!
2598    o adding ECCO global 1x1 and 2x2 degree configs
2599    o updated/extended some store directives for seaice
2600    o pkg/ecco now containes ecco-specific part of cost function
2601    o top level routines the_main_loop, forward_step
2602      supersede those in model/src/
2603      previous input data.cost now in data.ecco
2604      (new namelist ecco_cost_nml)
2605    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2606    
2607    checkpoint51t_post
2608    o this is the pre-merge tag of the ecco-branch
2609    
2610    checkpoint51s_post
2611    o cleanup: removed various obsolete #define-s
2612    o pkg/grdchk
2613      - renamed 'ph-grd 3' to 'grad-res'
2614      - merged from ecco-branch
2615        (remaining bug fixes for obcs gradient checks)
2616      - additional high-precision output for testreport
2617        (grep for 'precision_grdchk_result')
2618    
2619    checkpoint51r_post
2620    o cleaned up or removed CPP_OPTIONS.h files
2621    o updated results for some of the tests to reflect the new
2622      optfiles (-ieee: -O0 instead of -O3)
2623    
2624    checkpoint51q_post
2625    o cd_code:
2626      - moved cd_scheme.F -> cd_code_scheme.F
2627      - separate read_checkpoint from cd_code_ini_vars.F
2628      - separated cd_code part from write_checkpoint
2629      - updated AD_SOURCE, generated .flow
2630      - added CD_CODE_VARS.h to the_main_loop
2631      - Moving cd_code specific store dir.s to pkg/cd_code
2632    o ctrl package totally restructured
2633      - pack/unpack now optional and decoupled from
2634        xx_/adxx_ I/O
2635      - ctrl_pack/unpack cleaned
2636        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2637      - confined inclusion of AD_CONFIG.h to where necessary.
2638    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2639    
2640    checkpoint51p_post
2641    o create initial cd_code package
2642      - WARNING: the initialization of fields within packages
2643        is broken because INI_FIELDS (where READ_CHECKPOINT is
2644        called) is called *before* PACKAGES_INIT_VARIABLES.
2645        This seems to be backwards since
2646        1) its important to initially zero the entire field including
2647           the "halo" region
2648        2) zeroing needs to be done *before* reading pickup info
2649           and the pickup call might or might not happen in any
2650           particular run
2651      - this needs an overhaul for R2
2652    o cleanup verification/*/code/GMREDI_OPTIONS.h
2653    o cleanup testreport
2654    
2655    checkpoint51o_post
2656    o bringing AD-related verif's up to date with genmake2
2657      - carbon/
2658      - global_ocean.90x40x15/
2659      - hs.94.1x64x5/
2660      - (front_relax/ )
2661    o (more) consistent directory structure for AD-related verif.'s
2662    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2663    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2664    o bug fix in find_alpha.F for MDJWF:
2665      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2666        change rho -> rho-rhoConst
2667      - replace call find_rho to find_rhonum
2668    o initialisation of rFlx extended to full array (required by TAF)
2669      and shifted to thermodynamics
2670    o removed PTRACERS.h in ptracers routine
2671    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2672    o Correcting initialisations for fVerU, fVerV.
2673    o helping TAF to recognize dependency on kUp for
2674      fVerU, fVerV
2675    o Replacing delZ by delR in pkg/ctrl/
2676    checkpoint51o_pre
2677    
2678    o undid all of cp51 pending some cleanups and discussion
2679    o added the [#include "AD_CONFIG.h"] statement to all files that need
2680       it for adjoint/tl #defines
2681     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2682     o removed tools/genmake since it no longer works
2683    
2684    checkpoint51n_post
2685    o modifications to make FREEZE flux visible to pkg/kpp
2686      - moved surfaceTendencyTice from pkg/seaice to main code
2687      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2688      - subroutine FREEZE now limits only surface temperature
2689        (this means new output.txt for global_ocean.90x40x15,
2690         global_ocean.cs32x15, and global_with_exf)
2691    o added surface flux output variables to TIMEAVE_STATVARS
2692    
2693    checkpoint51n_pre
2694    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2695    o added [#include "AD_CONFIG.h"] to all files that use the following
2696      defines:
2697      - ALLOW_ADJOINT_RUN
2698      - ALLOW_TANGENTLINEAR_RUN
2699      - ALLOW_ECCO_OPTIMIZATION
2700    
2701    checkpoint51m_post
2702    o incorporating changes to get TAMC/TAF working in genmake2
2703      - added new TAMC/TAF targets to the Makefile
2704      - various cleanups related to package handling
2705      - these changes should have no impact on the forward model
2706    
2707    checkpoint51l_post
2708    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2709     - faster algorithm for cal_addtime.F
2710     - higher precision arithmetic, where needed
2711     - pkg/exf *startdate variables changed from calendar date to
2712       model integration time
2713    
2714    checkpoint51l_pre
2715    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2716    o enable to apply restoring on S & T only in a latitude band.
2717    o update output (external_forcing_surf modif. change truncation errors)
2718       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2719    
2720    checkpoint51k_post
2721    o change default to: useNHMTerms=.FALSE.
2722     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2723       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2724     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2725        exp1, ideal_2D_oce
2726     - change data file of oceanic exp (leave the results unchanged for now)
2727       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2728    o set gravitySign automatically according to the vertical coordinate used
2729      (and change sign: back to "logical" value: +1 when R increases downward)
2730    o added an include barrier to the default CPP_OPTIONS.h and
2731      removed the #include "PACKAGES_CONFIG.h" from it
2732    o fix a bug in mom_fluxform (from chk51j_post)
2733    
2734    checkpoint51j_post
2735    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2736    o adjusted some flow directives (dynamics, thermodynamics)
2737    o added cubed-sphere case to test cost function
2738    o heckpoint_lev?_directives.h now include
2739      pkg-specific directives, whenever those are enabled.
2740    o Moving pkg-specific flow directives to corresponding pkg
2741      Moving pkg-specific differentiation list to corresponding pkg
2742      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2743      ---> conventions are
2744           - pkg_ad.flow
2745           - pkg_ad_diff.list
2746           - pkg_ad_check_lev?_dir.h
2747    
2748    checkpoint51i_post
2749    o merge of the branch-genmake2
2750      - knowingly breaks the older genmake
2751      - automatic generation of all ALLOW_${PKG_NAME} defines
2752      - new testreport supersedes older testscript
2753    o large number of package inclusion and header cleanups
2754    checkpoint51i_pre
2755    
2756    o new output for adjoin of global ocean vector invariant
2757    o fix for checkpoint of thermodynamic seaice and bulk_force
2758    o Steph gchem various cleanups
2759    
2760    checkpoint 51h_pre
2761    o fixed some single quotes
2762    o modify gchem pkg to be more versatile
2763    o modifications to clean up dic pkg
2764    o add pkg/cfc
2765    
2766    checkpoint51g_post
2767    o provide links for ARPACK and ADM*TLM
2768    o start removing verification/vero/
2769    o update AD-related stuff
2770      (in particular some IF-statements in model/src/ routines)
2771    o adding to verification/global_ocean.90x40x15/ adjoint of
2772      vector invariant setup
2773    
2774    checkpoint51f_post
2775    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2776    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2777      of tracer Green's fucntions for ocean inversion project.
2778    
2779    checkpoint51f_pre
2780    o Added on-the-fly spatial interpolation capability
2781        "USE_EXF_INTERPOLATION" to pkg/exf.
2782      - This is a temporary Cartesian-grid hack until
2783        the super-duper ESMF coupler becomes available.
2784      - See verification/global_with_exf/README for usage example.
2785      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2786        flags and modified pkg/seaice accordingly.
2787    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2788        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2789        non-local transport term.
2790    
2791    checkpoint51e_post
2792    o pkg/mom_vecinv:
2793      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2794      - add time-ave diagnostic of vorticity advection.
2795    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2796    o atmospheric geopotential: - include water vapor effect;
2797                                - use p^kappa in p* scaling.
2798    o land pkg: read initial state from files.
2799    o AIM : add stratospheric drag in the upper level
2800    
2801    checkpoint51d_post
2802    o change function ILNBLNK (=> last non-blank char.) to return zero
2803      (instead of the string length) when the string. char is empty
2804    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2805    o modif's to restore TAMC compatibility
2806      - avoid "_d" constructs in PARAMETER declarations
2807      - avoid interrupting lines by comment lines
2808    o Use cluster local disks for purely local I/O
2809      vs. globally visible disks needed for ctrl stuff
2810      (merged from ecco-branch)
2811      - new active_file_loc... and mdsio_..._loc routines
2812      - affected packages: autodiff, ctrl, grdchk, mdsio
2813    
2814    checkpoint51c_post
2815    o introducing integer flag debugLevel
2816      - debLevZero: suppress all output
2817      - debLevA: standard
2818      - debLevB: equivalent to current debugMode=.TRUE.
2819    o introducing pathname variable mdsioLocalDir for mdsio
2820      that can be specified at runtime
2821      (relevant for cluster I/O to local disk)
2822    `
2823    >>>checkpoint51b_post
2824    adjoint of ptracers
2825    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2826    o extended state in checkpoint_lev?, etc.
2827    o alternative ctrl/cost with tr1 or ptracer
2828    o new comlev1_bibj_ptracers
2829    o new ptracers.flow
2830    o made ptracers_forcing same as external_forcing_s
2831    o added verification for adjoint with ptracers
2832      - adm. grdchk fail so far
2833      - tlm. grdchk OK
2834      - checked tapelev/comlev recomputations: OK
2835    <<<checkpoint51b_pre
2836    
2837    checkpoint51a_post
2838    o added code for biogeochemistry package
2839      - new pkgs: dic, gchem
2840      - new subroutine in ptracers
2841    o modify code for biogeo packages
2842      - in model/src and pkg/ptracers
2843    
2844    checkpoint51
2845    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2846      - autodiff, ctrl, exf, grdchk, seaice
2847      kept separate packages
2848      - cost, ecco, obcs
2849    o updating verification/internal_wave, verification/lab_sea
2850      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2851    
2852    checkpoint50i_post
2853    o Preparing next differentiable checkpoint and sync
2854      of MAIN vs. ecco-branch
2855      - 1st step: this one is differentiable
2856      - 2nd step: next(! not this) checkpoint will have updated packages
2857                  from ecco-branch)
2858    
2859    checkpoint50h_post
2860    o new package "land": provide surface BC for AIM.
2861    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2862    o AIM: use true log-P extrapolation for near surface temp (= as in
2863        F.Molteni paper) ; update aim.5l_cs output.
2864    o New variable in PARM03 for more flexible pickups
2865    o somewhat cleaned package initialisation sequence for
2866      ctrl/ cost/ ecco/ in packages_... routines
2867    
2868    checkpoint50g_post
2869    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2870      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2871      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2872        made the default because of faster convergence than ADI
2873    
2874    checkpoint50f_post
2875    o exf totally restructured
2876      - replaced all exf_set_ routines by one generic exf_set_gen.F
2877        and made sure it's still differentiable
2878      - split exf_getffields.F into new exf_bulkformulae.F
2879      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2880      - updated adjoint/makefile and relevant verif. accordingly
2881    
2882    checkpoint50f_pre
2883     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2884          + change Evap over land. (update aim.5l_cs output)
2885     o added missing .cvsignores and made uniform across expts
2886     o changed configuration of tidal_basin_2d expt
2887     o added pkg/debug functions for tracing code in fatal crashes
2888     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2889     o new fn in pkg/monitor to stop model if solution grows too big
2890     o removed lots of single quotes from comments
2891    
2892    checkpoint50e_post
2893    o make KPP work with PTRACERS
2894     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2895       nearly a copy of kpp_transport_s
2896     - there is no analogue to SurfaceTendencyS, so I have to use
2897       gPtr(of the surface layer) instead
2898    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2899    checkpoint50e_pre
2900    
2901    checkpoint50d_post
2902    o change kpp output from multiple-record state files to single-record state
2903      files analogous to write_state.F
2904    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2905      analogous to the cg2d-related output.
2906    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2907      so that writing to internal file fn (with length 512) fails.
2908    checkpoint50d_pre
2909    
2910    checkpoint50c_post
2911    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2912    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2913    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2914    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2915    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2916    
2917    checkpoint50c_pre
2918    Merging from release1_p13:
2919    o bug fix for pkg/seaice dynamic solver
2920    o Added SEAICE_initialHEFF to pkg/seaice
2921    
2922    checkpoint50b_post
2923    o store u*,v* in gU,V instead of in guNm1,gvNm1
2924    o in order to put the momForcing out of the Adams-Bashforth:
2925      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2926      to timestep.F
2927    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2928    o re-generate output for highly sensitive test-exp:
2929       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2930    
2931    checkpoint50b_pre
2932    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2933    o corrected CPP option mismatch in exf_Bulk... functions for case
2934      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2935    
2936    checkpoint50a_post
2937    o Bug fix for merging between c50 and KPP.
2938      ikey was passed from thermodynamics to kpp_calc via
2939      common block rather than being recomputed in kpp_calc,
2940      in contradiction with new key itdkey.
2941      New key ikppkey created, and tamc.h headers updated.
2942    
2943    checkpoint50
2944    - 2nd step of merge with ecco-branch:
2945      merge changes in ecco-branch back into main trunk
2946    - bug fix in find_alpha
2947    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2948    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2949    - merged some sliced AD support routines
2950    
2951    checkpoint49
2952    merged from ecco-branch:
2953    o exf:
2954      - Enable initialisation of forcing fields to constant
2955        (runtime) values.
2956      - in exf_getffields.F
2957        Reduce i-/j-loop to interior domain, discarding overlaps.
2958        That also fixes wrong TAF-key computations for key_1, key_2
2959        with bulf formulae.
2960      - exf_init.F modify #ifdef for exf_init_evap
2961      - exf_getffieldrec.F, ctrl_getrec.F
2962        The following INT-usages are not safe:
2963          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2964          fldcount = int(fldsecs/fldperiod) + 1
2965        and were modified.
2966    o autodiff: checkpoint_lev...
2967      - updated storing for bulk formulae (some arrays were missing)
2968      - added state for seaice package
2969      - synchronized with main branch
2970    o DIVA:
2971      Modif.s in
2972      - the_main_loop.F
2973      - the_model_main.F
2974      and added cost_final_restore.F cost_final_store.F
2975      o With these changes, it is possible to fully separate
2976        the first forward run to compute the cost function (mdthe_main_loop)
2977        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2978        into separate model executions.
2979        This enables better tuning of DIVA to given queue sizes.
2980      o Loss of cost function value in consecutive DIVA runs is
2981        fixed by storing to 'costfinal' file.
2982      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2983        beginning/end of adjoint integration is accounted for.
2984      The current changes apply to TAF-1.4.26.
2985      TAF has one remaining bug, requiring one manual change
2986      (see MITgcm manual).
2987    o cal: synchronized between MAIN and ecco-branch
2988    
2989    checkpoint48i_post
2990    o Changes to restore differentiability of code w.r.t. previous tag
2991      (mostly adding new routines to make list and replacing
2992      pressure by totPhiHyd).
2993    o Updated and merged grdchk package
2994      - has both ADM and TLM checks
2995      - works for single- and multi-proc.
2996      - output cleaned
2997      - worked successfully for parallel DIVA
2998    o genmake:
2999      - Adding -platform=SP4
3000      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
3001    o Modif. for DIVA:
3002      ctrl_unpack should not be called in intermediate DIVA interval.
3003      (similar thing would apply for active files such as
3004      tbar, sbar, psbar, which should not be reinitialised;
3005      only relevant for ecco-branch)
3006    
3007    checkpoint48h_post
3008    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
3009    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
3010    o Added SEAICE_initialHEFF to pkg/seaice
3011    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
3012    
3013    checkpoint48g_post
3014    --- EOS:
3015    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
3016      store total Potential in totPhyHyd for diagnostics & EOS.
3017    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
3018    --- Pressure/geopotential gradient:
3019    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
3020    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
3021      ( changes results of global_ocean_pressure )
3022    o NLFS + z-coord.: add eta*Rho' contribution.
3023    o accurate phiHyd when using interface-W at the middle between 2 centers
3024     ( changes results of ideal_2D_oce )
3025    o includes r* 2nd term in potential gradient.
3026    
3027    checkpoint48f_post
3028    Merging from release1_p12:
3029    o Modifications for using pkg/exf with pkg/seaice
3030      - improved description of the various forcing configurations
3031      - added basic radiation bulk formulae to pkg/exf
3032      - units/sign fix for evap computation in exf_getffields.F
3033      - updated verification/global_with_exf/results/output.txt
3034    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
3035      (SBO) core products, including oceanic mass, center-of-mass,
3036      angular, and bottom pressure (see pkg/sbo/README.sbo).
3037    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
3038      to avoid negative values in shallow regions.
3039      - updated verification/natl_box/results/output.txt
3040      - updated verification/lab_sea/results/output.txt
3041    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
3042    o Added useSingleCpuIO option (see PARAMS.h).
3043    o Updated useSingleCpuIO option in mdsio_writefield.F to
3044      work with multi-field files, e.g., for single-file pickup.
3045    o pkg/seaice:
3046      - bug fix in growth.F: QNET for no shortwave case
3047      - added HeffFile for specifying initial sea-ice thickness
3048      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
3049    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
3050      kpp_transport_t.F, forward_step.F, and the_main_loop.F
3051    o pkg/seaice:
3052      - adjoint-friendly modifications
3053      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
3054    
3055    checkpoint48e_post
3056    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
3057    o dynamics: change definition of computational domain & adapt mom_fluxform
3058      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
3059    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
3060        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
3061        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
3062        global_ocean.90x40x15 global_with_exf global_ocean_pressure
3063        inverted_barometer solid-body.cs-32x32x1
3064      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
3065    
3066    checkpoint48d_post
3067    o in preparation for r*:
3068     a) use pre-computed gradient of hydrostatic potential:
3069        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
3070     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
3071        => affects results of glob_oce_pressure (different truncation error)  
3072      update output.txt of ideal_2D_oce & global_ocean_pressure
3073    
3074    checkpoint48d_pre
3075    o in preparation for r*:
3076      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
3077      pass the 2 comp. of the grad. as arguments to momentum S/R.
3078      but for the moment, only used if it does not change the results.
3079    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
3080    
3081    checkpoint48c_post
3082    Modifications in treatment of initial flux forcing controls
3083    to avoid extra storing of flux fields.
3084    
3085    checkpoint48c_pre
3086    o Added tidal_basin_2d experiment (currently 1D!)
3087    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
3088    
3089    checkpoint48b_post
3090    o r* coordinate added in #ifdef NONLIN_FRSURF block.
3091     (modification to pressure gradient not yet implemented)
3092    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
3093      (for U & V) that are used for vertical advection of momentum.
3094    
3095    checkpoint48a_post
3096    o In preparation for r*, use temp. array to compute vertical transport
3097       in flux-form momentum pkg. => change results of few test-exp.
3098      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
3099                        lab_sea, natl_box & plume_on_slope
3100    
3101    checkpoint48
3102    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
3103    
3104    checkpoint47j_post
3105    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
3106    o moved adexch from forward_step to addummy_in_stepping
3107    o added exch in ctrl_map_...
3108    o aveFreq.=0. at end of cost_final to avoid overwrite in
3109      reverse checkpointing loop
3110    o Yet more changes in gmredi:
3111      * adgmredi_calc_tensor
3112        avoiding all recomputation of gmredi_slope_limit
3113      * adgmredi_x/y/rtransport
3114        added flag for excessive storing to avoid recomp. of
3115        u/v/rtans, dTdx/y/z
3116        -> this is not really necessary and very memory-consuming
3117      * adgmredi_slope_psi:
3118        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
3119      * gmredi_slope_limit
3120        re-activated full calculation of taperfct for case 'ac02'
3121    o updating verification/ adjoints of carbon, global_ocean.90x40x15
3122    
3123    checkpoint47i_post
3124    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
3125    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
3126      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
3127    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
3128    o gmredi: fix few bugs.
3129    
3130    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
3131    This will be a good checkpoint to plug into the ecco-branch.
3132    o few modif.'s to get latest version adjointed
3133      (mainly kick out code in ini_linear_phisurf)
3134    o modif's to run adjoint with exactConserv
3135    o case GM_BOLUS_ADVEC should be cleaned
3136      S/R gmredi_slope_psi should be cleaned
3137    o verification/carbon now has exactConserv=.TRUE.
3138    
3139    checkpoint47g_post
3140    o time-average AIM output: becomes independent from statvars time-average
3141      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
3142    o After TAF bug fix:
3143      Tested adjoint of gmredi package.
3144      Tests were done with checkpoint47 rather than with latest
3145      checkpoint47f_post since the latter is broken for the adjoint
3146      verification/carbon/ contains both ADM and TLM gradient checks.
3147    Here they are, before they get changed/lost/stolen.
3148    Mostly modif.'s to fix numerical sensitivities.
3149    Gradient checks OK for
3150    - GM_taper_scheme:
3151      * clipping
3152      * ac02
3153      * linear
3154      * glw91
3155      * dm95
3156      * ldd97
3157    - GMREDI_OPTIONS:
3158      * GM_VISBECK_VARIABLE_K
3159      * GM_NON_UNITY_DIAGONAL
3160      * GM_EXTRA_DIAGONAL
3161      * GM_BOLUS_ADVEC
3162    in conjunction with data.gmredi parameters to be checked in
3163    in a few minutes under verification/carbon/code/
3164    
3165    checkpoint47f_post
3166    Merging from release1_p10:
3167    o modifications for using pkg/exf with pkg/seaice
3168      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
3169        and SEAICE_EXTERNAL_FLUXES
3170      - pkg/exf CPP options EXF_READ_EVAP and
3171        EXF_NO_BULK_COMPUTATIONS
3172      - usage examples are Experiments 8 and 9 in
3173        verification/lab_sea/README
3174      - verification/lab_sea default experiment now uses
3175        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
3176    
3177    checkpoint47e_post
3178    o created a tag prior to creating a branch
3179    
3180    checkpoint47d_post
3181    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
3182      at the bottom boundary had an erroneous half slip boundary condition
3183    o added bottom drag and no slip boundary condition capabilities to
3184      oceanic pressure coordinates code
3185    o added new verification experiment global_ocean_pressure, this experiment is
3186      also described in the tutorial section of the manual
3187    checkpoint47d_pre
3188    
3189    checkpoint47c_post
3190    o Added a verification experiment for a global cubed-sphere ocean run
3191      -  verification/global_ocean.cubed32x32x30
3192      -  uses pkg/therm_seaice and pkg/bulk_forcing
3193    
3194    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
3195    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
3196      when using P-coordinate; only implemented for atmospheric config.
3197    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
3198      NOTES: requires option NONLIN_FRSURF to be "#define".
3199    o update advect_xz/results/output.txt (left from checkpoint44g_post)
3200    
3201    checkpoint47b_post
3202    Merging from release1_p9:
3203    o pkg/seaice
3204      - removed GOTO's and added taf directives
3205      - double precision constants to reduce the g77 (Linux)
3206        to F77 (SGI) differences reported in release1_p8
3207    o tools/genmake
3208      - added SGI options
3209    o verification/testscript
3210      - updated to that of checkpoint47a_post
3211    o verification/global_ocean.90x40x15/input/eedata
3212      - modified for SGI f77 compatibility
3213    o verification/lab_sea
3214      - added description of sea-ice model
3215      - added missing matlab routines
3216      - added test of thermodynamics parallelization
3217    
3218    checkpoint47a_post
3219    o new pkg: aim_v23
3220     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
3221       for now, keep the same surface forcing as before.
3222     - Part-Cell implemented into AIM; check that Heat & Water are conserved
3223     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
3224     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
3225    o add diagnostic of surface correction term in monitor output
3226    
3227    o bulk_force and therm_seaice
3228    - Two packages:  bulk_force (Bulk forcing)
3229      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
3230    - Earlier integration from Stephaine Dutkiewicz
3231      and Patrick Heimbach.
3232    - Two ifdef statements for compile time,
3233       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
3234    
3235    checkpoint47
3236    differentiable version of checkpoint46n_post
3237    o bug fix in quasihydrostaticterms
3238    o * "clean" adjoint code (in terms of extensive recomputations)
3239        can now be obtained for all GMREDI options (i.e. for
3240        - GM_VISBECK_VARIABLE_K
3241        - GM_NON_UNITY_DIAGONAL
3242        - GM_EXTRA_DIAGONAL
3243        - GM_BOLUS_ADVEC )
3244      * However, wrong gradient check problem remains unsolved.
3245      * New CPP options have been introduced for different
3246        tapering schemes
3247    o external_fields_load now part of differentiation list
3248    o pressure needs multiple storing;
3249      would be nice to have store_pressure at beginning or
3250      end of forward_step, e.g. by having phiHyd global (5-dim.)
3251      (NB: pressure is needed for certain cases in find_rho,
3252      which is also invoked through convective_adjustment).
3253    o recomputations in find_rho for cases
3254     'JMD95'/'UNESCO' or 'MDJWF' are OK.
3255    o #define ATMOSPHERIC_LOADING should be differentiable
3256    o ini_forcing shifted to begining of initialise_varia
3257    o Incorporating QNVS line search routines into MITgcm
3258      (this is separate code, and therefore not under pkg)
3259      lsopt/, optim/
3260    o Updated verification/carbon/
3261      - #define GM_VISBECK_VARIABLE_K
3262      - GM_taper_scheme    = 'ldd97'    
3263    
3264    checkpoint46n_post
3265    Merging from release1_p8:
3266    o verification/natl_box:
3267      updating new external_fields_load routine
3268    o New package: pkg/seaice
3269      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
3270      The sea-ice code is based on Hibler (1979-1980).
3271      Two sea-ice dynamic solvers, ADI and LSR, are included.
3272      In addition to computing prognostic sea-ice variables and diagnosing
3273      the forcing/external data fields that drive the ocean model,
3274      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
3275      The implied surface heat flux is then stored in variable
3276      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
3277      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
3278      non-local transport term.  Because this call precedes model
3279      thermodynamics, temperature under sea-ice may not be "exactly" at
3280      the freezing point by the time theta is dumped or time-averaged.
3281      N.B.: fairly large differences in accuracy occur across
3282            different platforms/compilers; comparison between
3283            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
3284            generated output gives:
3285       T           S           U           V
3286      C D M    c        m  s        m  s        m  s        m  s
3287      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
3288      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
3289      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
3290    
3291      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
3292    o GAD:
3293      - generated new common blocks to account for call of
3294        same gad routines with differing traceridentities
3295        (needed to modify tracerIdentity indices in GAD.h)
3296      - generated separate common blocks for case useCubedSphereExchange
3297        (Department of Futurology)
3298      - parameter lists to gmredi_?transport: added tracerIdentity
3299      - added new key indices to tamc.h
3300    o external_fields_load:
3301      - added this routine to TAF list
3302      - needed to make some common blocks global and additional storing
3303        along the same lines as exf package (checkpoint_lev?_directives.h)
3304    o exf:
3305      updated external forcing package
3306      - bug fixes carried over from ecco-branch
3307        (missing OBCS_OPTIONS.h in two routines)
3308      - enable easy to use "no forcing".
3309      - added exf I/O for atmospheric loading
3310      - added exf I/O for runoff data
3311      - transfered scaling between exf <-> MITgcm to exf namelist
3312    o Adding new verification experiment global_with_exf.
3313      This verification experiment is almost identical to the
3314      global_ocean.90x40x15 experiment, except that it uses
3315      the exf (and cal) package instead of the
3316      external_fields_load routine (cf README file).
3317    
3318    checkpoint46m_post
3319    o modified testscript to return -- when there are no lines of "%MON" output
3320    o added new flag "quasiHydrostatic" for QH mode
3321      and new routine quasihydrostaticterms()
3322    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
3323      New routine: mom_u_coriolis_nh()
3324    o fixed sign of non-hydrostatic metric terms in u and v equations.
3325      Depend on correct sign of gravitySign.
3326    o added work.pc* to .cvsignore in aim directories using ifc
3327    o introduced flag for controllin non-hydrostatic metric terms
3328    o removed gravitySign from PARM04
3329    o switched to g77/ifc from pgf77 in aim experiments
3330    
3331    checkpoint46l_post
3332    o made convective adjustment work with pressure coordinates:
3333     - changed the direction of k-loop in convective_adjustment.F for the
3334       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
3335     - adjusted the reference pressure k-index in convective_adjustment.F
3336     - adjusted the convection condition in convect.F (in analogy to
3337       calc_ivdc.F)
3338     - convective_adjustment no longer computes anything on the halos
3339     - removed the warnings about negative salinity from find_rho.F and
3340       find_alpha.F; instead the new routine look_for_neg_salinity, called
3341       at the beginning of find_rho, find_alpha, and find_beta, does a
3342       check of the entire slice, if CPP-option
3343       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
3344    checkpoint46l_pre
3345    
3346    checkpoint46k_post
3347    o fixed the verification/global_ocean.90x40x15 experiment:
3348     - new bathymetry (the world according to A., JMC, and M.)
3349     - new initial fields and forcing fields (*.bin files)
3350     - new POLY3.COEFFS (for the next release one should switch to a full
3351       equation of state: JMD95P or MDJWF)
3352     - fixed several errors and redundancies in the data file
3353     - experiment uses looped cells
3354     - added matlab directory with diagnostic scripts for plotting of output
3355    
3356    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
3357     - read AIM physics parameters from a file (data.aimphys)
3358     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
3359    
3360    checkpoint46j_post
3361    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
3362    o move wVel computation at the end of the time step, in S/R integr_continuity
3363    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
3364    o update timeave pkg for wVel diagnostic.
3365    checkpoint46j_pre
3366    
3367    checkpoint46i_post
3368    o Clean up AIM package (and keep the results unchanged):
3369      include CPP_OPTION and use IMPLICT NONE in all routines ;
3370      declare all the variables _RL ; use _d 0 for all numerical constants.
3371      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
3372    
3373    checkpoint46h_post
3374    o cleaned up the use of rhoNil and rhoConst.
3375      - rhoNil should only appear in the LINEAR equation of state, everywhere
3376        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
3377        and the dynamical equations are all divided by rhoConst
3378    o introduced new parameter rhoConstFresh, a reference density of fresh
3379      water, to remove the fresh water flux's dependence on rhoNil. The default
3380      value is 999.8 kg/m^3
3381    o cleanup up external_forcing.F and external_forcing_surf.F
3382      - can now be used by both OCEANIC and OCEANICP
3383    checkpoint46h_pre
3384    
3385     Added code to convert surface volume flux (fresh water) into
3386     a mass flux when using P coordinates in the ocean (OCEANICP).
3387     Note: It assumes you have set rho0=rhoConst=density of fresh water.
3388    
3389    checkpoint46g_post
3390    o Include a new diagnostic variable phiHydLow for the ocean model
3391      - in z-coordinates, it is the bottom pressure anomaly
3392      - in p-coordinates, it is the sea surface elevation
3393      - in both cases, these variable have global drift, reflecting the mass
3394        drift in z-coordinates and the volume drift in p-coordinates
3395      - included time averaging for phiHydLow, be aware of the drift!
3396    o depth-dependent computation of Bo_surf for pressure coordinates
3397      in the ocean (buoyancyRelation='OCEANICP')
3398      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
3399        Theta, Salinity, and Pressure in the parameter list. This routine is
3400        presently contained in find_rho.F. This routine does not give the
3401        correct density for 'POLY3', which would be a z-dependent reference
3402        density.
3403    o cleaned up find_rho
3404      - removed obsolete 'eqn' from the parameter list.
3405    o added two new verification experiments: gop and goz
3406      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
3407    checkpoint46g_pre
3408    
3409    checkpoint46f_post
3410    o Enable tangent linear (forward mode) gradient checks:
3411      - extended active file handling to g_... files
3412      - added TANGENT_SIMULATION to theSimulationMode
3413      - extended grdchk package accordingly
3414    o added tangent linear setup in verification/carbon/code_ftl
3415    o added adjoint setup in verification/front_relax/code_ad
3416    
3417    checkpoint46e_post
3418    o Added new equation of state -> MDJWF
3419      - EOS of McDougall et al., 2002, JAOT, submitted
3420      - caveat: the equation of state is only valid for a smaller (more
3421        realistic?) range of values than JMD95P/Z and UNESCO
3422      - added masks to the calculation of pressure in store_pressure
3423      - added more check values for density in check_eos (ini_eos.F), some of
3424        the old check values are out of the range of the MDJWF-eos, so don't
3425        expect perfect matches for those
3426    checkpoint46e_pre
3427    
3428    checkpoint46d_post
3429    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
3430      'OCEANICP', also initialised field pressure correctly in ini_eos in the
3431      case of pressure coordinates. eosType='JMD95Z' in
3432      combination with buoyancyRelation='OCEANICP' now causes an error.
3433    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3434      in find_alpha/beta.
3435    checkpoint46d_pre
3436    
3437    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3438      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
3439    
3440    checkpoint46c_post
3441    o Changes necessary for ocean in p-coordinates
3442     -  Added new buoyancy relation = 'OCEANICP'
3443     -  Added new parameters = gravitySign (this used to be contained inside
3444        the factor dRdZ which I added when we first switched to R coordinates).
3445     X GM/Redi is not compatible (yet)
3446     X bottom drag and no-slip need to be debugged.
3447    checkpoint46c_pre
3448    
3449    checkpoint46b_post
3450    o Added new equation of state -> JMD95Z and JMD95P
3451      - EOS of Jackett and McDougall, 1995, JAOT
3452      - moved all EOS parameters into EOS.h
3453      - new routines ini_eos.F, store_pressure.F
3454    o Added UNESCO EOS, but not recommended because it requires
3455      in-situ temperature (see JMD95)
3456    o Modified formatting for knudsen2.f in utils/knudsen2 and added
3457      unesco.f to be used with POLY3
3458    checkpoint46b_pre
3459    
3460    checkpoint46a_post
3461    o Added (atmospheric) pressure loading
3462      - new field in FFIELDS.h, etc...
3463      - new cpp flag ATMOSPHERIC_LOADING
3464    o Changed hFacC to _hFacC in calc_phi_hyd.F
3465    o Added SHORTWAVE_HEATING to some files for consistency
3466    checkpoint46a_pre
3467    
3468    checkpoint46
3469    further merges from release1_p5
3470    o new ctrl package
3471      - adopted from ECCO environment to enable optimization
3472      - added Eliassen Palm fluxes to controls
3473    o added Eliassen Palm flux controls to gradient check package
3474    o cost package
3475      - Compatible with new ctrl package
3476      - added Eliassen Palm cost hooks
3477      - modif's of existing cost functions
3478    o Adjoint-related bug fixes in kpp:
3479      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
3480      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
3481    o autodiff package
3482      - flow directives:
3483        + new for S/R do_the_model_io
3484        + enhanced for S/R checkpoint
3485        + new gmredi.flow
3486      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
3487        disable adcommon.h/g_common.h by default.
3488      - fixed problem for adjoint of global_max
3489    o modified verification/carbon/
3490    o New setup for adjoint of global_ocean
3491    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
3492    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
3493    o incorporated hooks for sponge layer code (external_forcing.F)
3494    
3495    checkpoint45d_post
3496    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
3497    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
3498      (affects plume_on_slope "cg2d" output)
3499    o add new parameter deltaTfreesurf for free-surface time stepping
3500    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
3501    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
3502    o change phiMin in exp1 (to agree with documentation)
3503    o add new flags:
3504     - T,S forcing inside/outside Adams-Bashforth
3505     - turn off temp,salt advection and/or forcing
3506     - for each tracer, define internal flag for multiDimAdvection & A-B
3507    o monitor: change definition of KE to check conservation of Energy
3508    
3509    checkpoint45c_post
3510    o Removed f90 comments ("!")
3511    o Modified initialisations to enable exf package for MITgcm
3512      (without invoking ECCO_PACKAGE).
3513    o modifications to gradient check package (Martin Losch)
3514      - enable centered differences
3515      - modified format of standard output
3516    
3517    checkpoint45b_post
3518    o cleaned exchange calls in cg2d
3519    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
3520    o included CPP option SINGLE_LAYER_MODE in thermodynamics
3521      to configure barotropic setup (Martin Losch)
3522    o moved some initialisations within bi,bj loop in dynamics
3523      (TAF flow dependency)
3524    o in initialise_varia, moved call packages_init_variables
3525      before convective_adjustment_init
3526      (corresponding adjustment of TAF tape initialisation).
3527    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
3528    
3529    checkpoint45a_post
3530    o compute Rho over the whole domain (extend iMin,jMin indices)
3531    o specific exchange for X-slice domain (case Ny=1)
3532  o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code  o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
3533  o solve_for_pressure : set cg2d_x to zero where OBCS are applied  o solve_for_pressure : set cg2d_x to zero where OBCS are applied
3534    

Legend:
Removed from v.1.70  
changed lines
  Added in v.1.1008

  ViewVC Help
Powered by ViewVC 1.1.22