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revision 1.76 by jmc, Fri Jul 12 14:52:08 2002 UTC revision 1.1013 by jmc, Tue Aug 5 15:58:18 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    checkpoint61b
8    o exch2:
9      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
10      - no longer depend on the order sequence (N,S,E,W).
11      - 3rd exchange no longer needed (tested with 24 tiles).
12      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
13      - exch_UV_A-grid readily available (but not yet tested).
14      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
15      (both are no longer needed) in exch_uv: no effect in forward run; but
16       get truncation error differences with adjoint exch.
17    o exch2:
18     - change index-bounds storage (moved from target to local tile,
19       more intuitive this way) ; rename/remove some variables.
20     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
21    
22    checkpoint61a
23    o exch2/matlab-topology-generator:
24      fix bug in index bounds for N-S internal exchange (hard to tell if this
25      had any effect on the solution).
26    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
27      is exceeded
28    o testreport: modify syntax of awk, so that it works also with
29      awk, and not only with nawk and gawk
30    
31    checkpoint61
32    o autodiff
33      Change default for TAF usage by removing argument '-nonew_arg'
34      This changes TAF subroutine argument list (ordering of active var.)
35      Omission of this flag leads to incompatibility w.r.t. TAMC
36      To restore TAMC-compatibility, need following modifs:
37      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
38      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
39      Tested TAF version is 1.9.22
40      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
41    
42    checkpoint60
43    --->>> This is the last checkpoint for which generating the adjoint
44    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
45    --->>> by default.
46    --->>> Future checkpoints will ommit this flag by default.
47    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
48    o pkg/grdchk: Add gradient check to etan0 perturbations.
49    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
50    o pkg/autodiff: more flexibility in zeroadj.
51      model/src: modifying do_oceanic_phys.F accordingly.
52    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
53    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
54      special setup of gmredi for which the adjoint is stable
55      enough for parameter optimization.
56    o bridging the gap between eddy stress and GM.
57      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
58          along with a change in CPP option (now ALLOW_EDDYPSI).
59      -> when using GM w/ GM_AdvForm:
60          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
61          is applied either in the tracer Eq. or in momentum Eq.
62          depending on data.gmredi (intro. GM_InMomAsStress).
63      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
64      The key modifications are in model/src/taueddy_external_forcing.F
65      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
66    
67    checkpoint59r
68    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
69      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
70      fix option to read coriolis(@ cell-corner) from files with CS-grid.
71    o pkg/mnc: add some attributes to standard 1D-coordinate variables
72    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
73      mass points, when using mnc for output
74      - add runtime parameter (missing_value, missing_value_int) to override
75        default (which is the value of getcon('UNDEF'))
76    o pkg/mnc: prepare mnc for the actual use of missing values with the
77      diagnostics package: small fix in mnc_cw_readwrite.template and more
78      initialisation of never used fields
79      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
80      versions
81    o pkg/thsice/thsice_ini_vars.F added default initial values so that
82      thermodynamics sea ice solver does not blow up when some initial fields
83      are missing.
84    o move from external_forcing_surf.F to ini_forcing.F
85      the p-coord. hack consisting in using pLoad to set phi0surf ;
86      update output of tutorial_global_oce_in_p (affected @ truncation level).
87    o Freshen up a bit hs94.1x64x5, notably:
88      remove rotationPeriod and tRef=5*0. (adjoint only), and add
89      exactConserv=.TRUE.
90    o pkg/generic_advdiff:
91      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
92      applies to files where Temperature & Salinity 2nd Order moments are used.
93    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
94      this uses a dynamically allocated internal state data structure
95      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
96      and requires a fortran 90 compiler
97    
98    checkpoint59q
99    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
100       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
101    o Refresh tutorial_global_oce_biogeo, notably:
102      - change bathymetry (put back seamounts in ACC, use hFacs)
103      - change EOS (POLY3 --> JMD95Z)
104      - use Bryan-Lewis vertical diffusivity
105      - use multidimensional advection
106      - remove old virtual virtual in dic pkg, now done through ptracer pkg
107      - change a couple of parameters in dic pkg
108    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
109    o pkg/obcs: change default to OBCSfixTopo = .true.,
110      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
111      - replace "debugMode" with "debugLevel .GE. debLevB"
112    o implementation of TAF directives for gchem,cfc,dic
113    o remove "exp5" (replaced by tutorial_deep_convection).
114    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
115      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
116      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
117      --> changes results in exp4, seaice_obcs
118    o tutorial_deep_convection :
119      update the set-up and increase resolution and domain size ; start
120      from pseudo initial conditions = output at t=120mn in order to see
121      something happening when running testreport.
122    o pkg/seaice: add os7mp as an advection scheme
123                  add check for advection schemes
124                  add a flag for restoring T and S underneath sea ice
125    o pkg/my82: add netcdf-support and diagnostics
126    o thsice pkg:
127      - Now hsMax limits snow height by turning it into ice following
128        flooding scheme (and now conserving energy)
129      - Slight rewriting of the formula in thsice_calc_thick.F
130      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
131      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
132    
133    checkpoint59p
134    o gchem / dic / cfc :
135      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
136      - add new parameter files: "data.dic" & "data.cfc" ;
137      - various re-arrangement in initialisation & header file ;
138      - fix tutorial_global_oce_biogeo for multi-threaded test.
139    o pkg/dic: test for "pickup_dic" file when restarting ;
140      if no pickup-file, can restart with a re-initialised pH (same as it did
141      before) providing pickupStrictlyMatch is set to False.
142    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
143      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
144    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
145      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
146    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
147     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
148       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
149    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
150       scheme to use for vorticty-term ;
151     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
152       (with default selectVortScheme, return to original discretisation)
153     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
154    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
155    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
156      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
157      also fix diagnostics VISCAHW & VISCA4W.
158    
159    checkpoint59o
160    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
161    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
162      move a few statemens out the main loop into separate loops
163    o pkg/shelfice:
164      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
165        (kg/m^2/s), does not break tests, because in verification/isomip,
166        rhoConstFresh=rhoConst (by accident)
167      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
168      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
169        new file model/src/seawater.F, so that they are available for all pkgs.
170      - convert potential temperature into in-situ temperature. This changes the
171        isomip tests => update tests
172    o add a flag writePickupAtEnd (default=true) to be able to suppress
173      writing a pickup at the last timestep
174    o tools/mpack-1.6 :
175      - disable automake (not working) and autoconf (not needed).
176      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
177        also cleaner with much less compilation warnings.
178    o pkg/profiles:
179      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
180      (for "less than 32 characters name" compiler requirement)
181    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
182      conditions that have a different sampling frequency than S/T/U/V obcs
183    o pkg/diagnostics (stats-diags):
184      - fix global Min/Max in case 1 processor get only empty tiles
185    o genmake2: replace (4 times)
186         make genmake_tc_1.o >> genmake_warnings 2>&1
187      with
188         COMM="$CC $CFLAGS -c genmake_tc_1.c"
189         echo $COMM >> genmake_warnings
190         $COMM >> genmake_warnings 2>&1
191      to make genmake2 always see the value of CC as specified in the optfile.
192    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
193      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
194      - modify verification advect_cs test to test SOM-advection on CS-grid.
195    o pkg/ctrl:
196      - Rewrite of ctrl_map_ini_ecco.F,
197        introducing a generic routine (ctrl_map_ini_gen.F).
198      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
199    
200    checkpoint59n
201    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
202      number in dedicate array "hdiag":
203      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
204        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
205      - many small changes (integer format) for large number of diagnostics
206      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
207        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
208    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
209      usingSphericalGrid, this allows to define the rotated grid coordinates
210      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
211      geographical coordinates according to the inverse of the rotation defined
212      by the Euler angles, so that Coriolis parameter and online-interpolation by
213      exf works with the geographical coordinates on XC/YC/XG/YG.
214      Naturally, this feature does not work with all packages, so some
215      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
216      profiles), because there the coordinates are assumed to be regular
217      spherical grid coordinates.
218    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
219      - introduce isopycnal diffusion coefficient control.
220    o tools/adjoint_options:
221      - additional control vector components.
222    o pkg/mnc: have mnc create marginally meaning full coordinate variables
223      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
224    o pkg/mypackage:
225      - add example of read/write pickup for state-var ;
226      - add entry points to the main code for state-vars diags & write-pickup.
227    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
228      transitions for useExfYearlyFields
229      - add new subroutine that determines the file to read from for
230        use*YearlyFields = .TRUE. and .FALSE.
231      - add a verification experiment to global_with_exf that tests
232        useExfYearlyFields with USE_EXF_INTERPOLATION defined
233    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
234      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
235      subroutines (which could be generated from a template, because they are
236      almost identical), for now they are included in obcs_prescribe_read.F for
237      simplicity
238    o pkg/exf:
239      - add a little more diagnostic to exf_interp_read (in analogy to
240        mds_read_field, can be turned off with debugLevel < debugLevA=1)
241      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
242        ugly but fast by unrolling short inner loops, inserting a unroll=8
243        directive in routine lagran, and splitting a loop and making do while the
244        outermost loop (the latter requires the intoduction of index arrays)
245    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
246    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
247      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
248    o verification/seaice_obcs: updated for restart test and latest options
249    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
250      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
251      for now this is only available for the C-grid code and also within
252      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
253    
254    checkpoint59m
255    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
256      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
257    o gad_som : fix flux output (& diagnostics) to have same units as other  
258      advection scheme fluxes (was previously multiplied by deltaT).  
259    o added verification/seaice_obcs both to test seaice open boundaries
260      and to provide an example matlab scrpt for generating them
261    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
262    o pkg/salt_plume: clean up salt_plume_frac.F to
263      remove redundancy in PlumeMethod 1 and 4
264    o pkg/kpp: added saltplume diagnostics
265    o pkg/obcs and pkg/seaice:
266      - do not set uice and vice to zero when OB*icefile are unspecified
267      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
268      - moved seaice tracer obcs after call to seaice_growth
269    o pkg/salt_plume: added various options for salt plume depth
270      criterion and for vertical distribution of the salt
271    
272    checkpoint59l
273    o pkg/ptracers: new version of ptracers pickup:
274      read meta file and write only fields which are needed to restart.
275      ( same logic as main pickup file ; also using pickupStrictlyMatch )
276    o pkg/seaice:
277      - add timescale for melting due to warm mixed layer as a means of
278        setting SEAICE_availHeatFrac more conveniently
279      - add a CPP-flag/runtime parameter check for flooding algorithm
280      - reformulated availHeat in seaice_growth.F to be independent of AREA
281    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
282      unit changes
283    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
284    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
285      SX vector computer.
286    o pkg/seaice:
287      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
288        seaice forcing fields can now be read only through pkg/exf
289      - removed some unused halos
290    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
291    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
292      or U/VICE from U/VWIND before computing U/VSTRESS
293    
294    checkpoint59k
295    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
296      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
297    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
298      all experiments pass when compile with un-initialised var. checking option.
299    o added pkg/salt_plume
300    o script to test restart (for now, in MITgcm_contrib/jmc_script)
301    o pkg/seaice: new read/write pickup version.
302      read meta file and write only fields which are needed to restart.
303      ( same logic as main pickup file ; also using pickupStrictlyMatch )
304    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
305    o lab_sea.hb87: modify the domain & update output.hb87.txt :
306      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
307      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
308      process. Fixed here by closing the domain at the Northern boundary.
309    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
310    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
311      a set of consecutive levels in/from a 3-D array.
312    o pkg/ptracers:
313      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
314      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
315    
316    checkpoint59j
317    o in pkgs: dic, obcs, offline, rbcs:
318      standard way to compute coeff. for time interpolation between 2 time reccords
319      which retains full precision (& make results less dependent on compiler).
320      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
321    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
322      packages instead of reading ice cover and wind speed separately
323    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
324     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
325      to allow to compile customized code before the update)
326    o cleaning-up:
327      - fix CPP instruction syntax in pkg/obcs
328      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
329        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
330      - fix some threads issue in IO parts.
331    o pkg/dic:
332      - add tons of "_d 0" (--> much better testreports !)
333       and then update outputs of tutorial_global_oce_biogeo
334    o pkg/mom_fluxform:
335      add a special version of momentum advection intended to conserve momentum
336      next to a bathymetry step or a coastline edge. (default = off = #undef)
337    o new read/write pickup version:
338      - for now, only implemented for main (mdsio) pickup file.
339      - write out only what is needed to restart; merge pickup_nh , pickup_ph
340        and main pickup together.
341      - read meta file; read only what is needed to restart; stop if a field
342        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
343        if it make sense (even if the restart is not perfect).
344      - if no meta file, assume that pickup to read corresponds exactly to
345        a pickup that would currently be written.
346      - read pickup written in the old format (until checkpoint59i) if it
347        recognizes an old meta file (no field-list).
348      - add a meta file in exp. which starts from a pickup: 2 cases:
349        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
350         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
351        b) a meta file describing the content of the associated pickup file
352         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
353    o pkg/mdsio & pkg/rw:
354      - new routine to read a meta file ; new set of routine to read
355        Multiple-fields file (with meta file).
356    o added open boundary conditions capability for seaice
357        HSNOW, HSALT, UICE, and VICE
358    
359    checkpoint59i
360    o adjoint:
361      * fix multiDimAdvection adjoint
362        (partial recomputation problem by TAF for fVerT(:,:,kDown)
363        and comlev1 size definition (maxpass vs. max. number of tracers)
364      * verification/global_ocean.90x45x15 adjoint now tests
365        NLFS and multiDimAdvection using DST3 (=30)
366      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
367    o pkg/kpp: add "_d 0" to real constant (if missing);
368      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
369      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
370    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
371      for internal parameters related to restart process (formerly from PARAMS.h)
372      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
373    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
374      as argument. (only atm2d & obcs write_pickup have not yet been updated)
375    o pkg/monitor:
376      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
377      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
378      - account for deep Atmosphere factor and density factor (anelastic)
379    o added open boundary conditions capability for seaice HEFF and AREA
380    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
381      thermodynamics
382      - requires a little reorganization, which affects the testreport results
383        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
384        so that now the conservative form is tested
385      - add a few comments
386    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
387    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
388    o add new diagnostics to seaice: advective, diffusive fluxes (only for
389      multidim-advection, for scheme 2 they are not filled) and transports,
390      thermodynamic growth rates
391    o change units of EmPmR (inside the code, + within coupling interface)
392      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
393      Affects results @ truncation level (cg2d match) and update output of
394       experiments: lab_sea(6), global_ocean.90x40x15(10),
395      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
396      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
397      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
398      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
399    
400    checkpoint59h
401    o pkg/exf:
402      - improve vectorization by moving if-statement out of loops in
403        exf_mapfields, exf_radiation
404      - exf_bulkformulae.F: introduce 2D fields and vectorize code
405    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
406    o testreport:
407      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
408        monitor & update offline_exf_seaice exp. output.
409      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
410    o pkg/seaice:
411      - bug fix in the evp solver: boundary conditions were affected be
412        masking of zMax/zMin (changes results)
413      - minor bug fix in boundary conditions in seaice_calc_strainrates
414        (changes results for no_slip)
415      - seaice_lsr.F: make interpolation of eta dependent on boundaries
416      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
417      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
418        stress formulation and no-slip boundary conditions
419    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
420      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
421    o pkg/seaice: a first HSALT time stepping equation has been checked in
422    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
423      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
424      without requiring DO-IF statements
425    o pkg/thsice:
426      use continuous power-law function for partition of energy between lateral
427      melting/freezing and thinning/thickening ; old code using step function
428      still available with #undef THSICE_FRACEN_POWERLAW
429      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
430    o testreport: change AD testing : check against results/output_adm.txt
431      using same scripts as for forward test.
432    
433    checkpoint59g
434    o adjoint testing: in preparation for changing testreport:
435      - output format: cost and grad written on separated lines
436      - ad output results in directory "results" (instead of "results_ad")
437    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
438    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
439    o pkg/ecco: allow user defined cost function contributions
440    o testreport:
441      Allow to choose (per experiment) the list of tested output variables
442       and the main variable (used to issue a pass/FAIL ) ;
443      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
444      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
445      Also modify printing of summary:
446       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
447       b) echo the list of tested variables in the individual summary.txt of
448          each experiment.
449    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
450      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
451      (but still depend on the tile decompostion of the domain).
452    o pkg/seaice: change a discretization detail to make the B-grid code
453      "more symmetric". This change is likely to remove all "ridges/leads" that
454      where quasi-aligned with the grid in B-grid solutions. It may also be
455      the solution to the stress coupling issues with the B-grid.
456    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
457      remove .cvsignore from input dir. (since testreport no longer run here).
458    o pkg/thsice:
459     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
460     - fix reshaping of sea-ice just after advection:
461       melt all the ice only if ice-volume is too small.
462     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
463       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
464     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
465    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
466      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
467    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
468      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
469      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
470      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
471      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
472      -> update output.txt
473    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
474     this affects truncation error: -> update output.txt of exp:
475      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
476      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
477    
478    checkpoint59f
479    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
480    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
481      a bounded range (in forward mode)
482    o pkg/ecco, ctrl, autodiff and mom_common:
483     internal parameter controls, completements of implementations
484    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
485    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
486      (not seem any difference in testing results).
487    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
488       at face corners.
489    o pkg/generic_advdiff:
490     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
491      loop range indices for computing vertical advection tendency
492      and do the calculation in the interior only (no overlap) ;
493      for now, only implemented for SOM advection (to save CPU time).
494     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
495    o exch2 adjoint
496      First set of changes:
497      - add exch2 hand-written adjoint templates
498      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
499        This will require cleanup in pkg/autodiff/*.F
500        (changed routines currently kept separate in verif. code/)
501      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
502        that used to hide exch2 or cubed-sphere specific code
503        (commented via 'cph-exch2')
504    o pkg/seaice
505      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
506    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
507       output of global_ocean.cs32x15.thsice .
508    
509    checkpoint59e
510    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
511      for B-grid vector (not yet tested) and C-grid vector (<- only used
512      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
513    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
514      (#ifdef ALLOW_SALT_PLUME)
515    o gather_2d/scatter_2d: removed halo regions
516    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
517      scheme and the corresponding test case (under front_relax dir). For now,
518      only available with Skew-flux form and not yet tested in realistic set-up.
519      adjoint: store directives updated, but gradient checks deteriorated,
520      so maybe GM/Redi adjoint is now broken.
521    o seaice adjoint
522      * add AREA, HEFF, HSNOW as control variable
523        (should not change lab_sea results)
524      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
525    o pkg/seaice:
526      * added computation of saltFlux in seaice_growth;
527        For time being, sea ice salinity is assumed constant
528        contribution of snow flooding to freshening of sea ice is neglected.
529        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
530        defaults to 0.0 in order to maintain backward compatibility.
531        Typical values for SEAICE_salinity are 4 to 10 g/kg.
532      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
533      * added SEAICE_availHeatFrac, which specifies fraction of surface level
534        heat content used to melt or grow ice
535      * commented out cap of HICE: it helps keep ice thinner
536      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
537      * applied OBCS T/S mask to HEFFM sea ice mask
538    
539    checkpoint59d
540    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
541     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
542     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
543    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
544     and change default value of parameter "GM_Small_Number";
545     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
546       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
547       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
548    o pkg/ecco: cost function when applying pkg/smooth to controls
549    o pkg/ctrl: add forcingPrecond run time parameter
550    o pkg/seaice:
551     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
552     - fix bug in metric terms of u-equation in LSR solver (implicit part),
553       changes verification/lab_sea
554     - rearrange implicit part of u-equation in LSR solver to make it easier to
555       read, understand, and debug. This causes changes at the truncation level.
556     - fix (serious) bug in the boundary conditions (sign error in the implicit
557       part) of the LSR solver. Changes all LSR results.
558     - fixed problem with HSNOW initialization to avoid thick snow when AREA
559       is initilized with small values - does not change lab_sea results.
560     - added HsnowFile initialization capability
561    o pkg/smooth: addition to model/src and pkg/ctrl so allow
562     initialization of pkg/smooth and application to control vector
563    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
564    o dependencies: pkg/profiles requires pkg/cal
565    o pkg/profiles:
566     - added option ALLOW_PROFILES_GENERICGRID
567         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
568         that interpolation information (grid points and coefficients) is provided
569         within the netcdf input files.
570         -> sample matlab scripts can be found in MITgcm_contrib/gael
571         that allow you to prepare netcdf input files.
572     - also modified: cleaner include statements, cleaner error print statements,
573       cleaner stops when error, and more tests of the netcdf input files consistency.
574    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
575    o pkg/seaice:
576     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
577       requires a new routine: seaice_diagnostics_fill.F
578     - make sure that seaice does not move if not forced (pressure replacement
579       method, Hibler and Ip, 1995), changes results
580     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
581     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
582       It is turned off by default (=-1.), because it changes the results.
583     - make it possible to read AREA from a file, too.
584    
585    checkpoint59c
586    o add S/R and diagnostics for oceanic mixed-layer depth
587    o move GMRedi call after all vertical mixing schemes (including KPP)
588    o pkg/thsice:
589     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
590      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
591    o pkg/obcs:
592     - bug fix for balance code
593    o pkg/seaice:
594      - allow values of SEAICE_elasticParm > 1
595      - add new parameter SEAICE_evpTauRelax as an alternative
596        to SEAICE_elasticParm
597      - make lsr boundary conditions free slip (by default), changes result
598      - add code for no slip boundary conditions for lsr
599      - set minimum of zeta to zero (and not 4e8) (changes results)
600      - add a cap on AREA after advecting AREA if seaice_growth is not called
601    o change calculation of Visbeck K:
602      - no longer depend on tapering scheme; instead, compute slope (limited
603        by GM_maxSlope). this is equivalent to what was comuted before with
604        clipping or linear tappering.
605      - fix vertical averaging (wrong by 1/2 level)
606      - leave the old version (but will not be maintained) within
607        #ifdef OLD_VISBECK_CALC / #endif
608      - update output of exp. ideal_2D_oce
609    o change error catch in calc_r_star to improve vectorization
610    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
611      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
612    o adjoint:
613      Re-organized adjoint checkpointing according to Matt Mazloff
614      (but with modifs/completions/cleanups)
615      Storing is now bundled into large arrays to optimized I/O
616      (and second step in cleanup of the_main_loop)
617    
618    checkpoint59b
619    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
620      - export/import (between ocean & coupler) fields needed for ocean DIC.
621    o pkg/seaice:
622      - get rid of three more exchanges seaice_calc_viscosities (required
623        different loop boundaries in seaice_lsr and seaice_ocean_stress)
624      - bug fix in seaice_ocean_stress (update of lab_sea required)
625      - reduce loop boundaries to necessary minimum also in seaice_evp
626      - go back to the old way of computing deltaC/Z as the adjoint likes that
627        better
628    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
629      passive tracer to an Age Tracer) + update output.txt
630    o pkg/exf:
631      - implement A-grid / C-grid selection for wind-stress input files.
632      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
633      for now, in exf_bulk_largeyeager04.F only :
634      - change implementation for case where windspeed + 2. components wind-stress
635        are read-in. AND use rhoConstFresh to convert evap.
636    o pkg/seaice:
637      - use correct EXCH_UV for wind-forcing (on A-grid).
638      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
639        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
640    o pkg/exf:
641      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
642      EXF_INTERPOLATION:
643      - merge global_with_exf/code version of exf_interp_read.F
644        to the main code ;
645      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
646        reading the file ; Important: This options needs to be defined to recover
647        previous code.
648        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
649      - no longer loose real*8 precision along the way when using exf_iprec=64.
650    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
651      - change discretisation of evp-solver in order to avoid another exchange
652        (changes lab_sea) and clean up a little
653      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
654        help the adjoint (this also changes the results slightly)
655      - add a few "_d 0" where they had been missing in seaice_evp.F
656      - cleaning up: remove unused seaice_calc_rhs.F
657    o pkg/exf: some cleaning-up:
658      - change various "constants" into runtime parameters
659      - cleaned-up Large&Yeager04 routine which should eventually
660        replace exf_bulkformulae.F (changed names of S/R and CPP)
661        and merged various ALLOW_ATM_WIND options
662     only used with thsice pkg (in thsice_get_exf.F):
663      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
664        which are used when useStabilityFct_overIce=TRUE (= the default)
665      - change default values of ice & snow emissivity and scale downward LW
666        by ice & snow emissivity.
667    o pkg/thsice:
668     fix few little problems, in thsice_calc_thickn.F:
669      - growth vertically (and not laterally) if iceFrac == iceMaskMax
670      - melt only laterally if hIce < hThinIce (as the comments say)
671      and in thsice_extend.F:
672      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
673      - start to form ice as soon as the minimum ice-volume is reachable.
674     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
675      and cpl_aim+ocn
676    o pkg/kpp
677     - move computation of surface related input fields to KPP into a new
678       subroutine kpp_forcing_surf.F
679     - remove wrong (within bi,bj loops) EXCH calls.
680     - little cleaning (add argument myThid in last position, cvs header ...)
681     - for now, fix conservation problem by exchanging KPPviscAz (may not
682       be the best fix)
683    o pkg/seaice
684     - check for inconsistent evp parameter/cpp-flag combination
685     - remove leftover errIO flat for obsolete name list error handling
686    o OpenAD
687     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
688    
689    checkpoint59a
690    o pkg/seaice: some parameter clarifications and a little bit of clean up
691    o pkg/thsice: rename run-time parameters:
692       himin       -> hIceMin
693       himin0      -> hThinIce
694       hihig       -> hThickIce
695       i0          -> i0swFrac
696       transCoef   -> bMeltCoef
697       frac_energy -> fracMelting
698      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
699       with default values (for now) that do not change the results.
700      remove old version of thsice vars advection in pkg/seaice.
701    o in FFIELDS.h:
702      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
703      - make pLoad & sIceLoad always available (but still only used if
704         ATMOSPHERIC_LOADING is #define).
705    o pkg/kpp: replaced _KPP_RL with _RL
706    o bug fixes for vertical diffusivity computations when both KPP and
707        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
708        are no longer updating the vertical diffusivity array
709        (passed as argument) but are (re-) setting those arrays.
710    o pkg/seaice: fix bug in evp solver, while doing that
711      - change (improve?) discretization of stress computations for both
712        cgrid-lsr and evp solver
713      - add a new routine to compute strain rates
714      - the above changes lab_sea results
715      - add no slip conditions for evp solver (off by default), lsr-version
716        may follow
717      - fix exchange for shear at Z-points (does not change lab_sea)
718      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
719        (to force the user to pick a time step since there is not "safe" way
720        of choosing it)
721      - add principal stress diagnostics
722      - rearrange fields for evp a little to avoid having to call a: too many
723        exchanges and b: exchanges for stress trensor components which we do
724        not have.
725      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
726        of evp, complete rewrite for lsr case (latter is does not yet work
727        in all cases)
728    o pkg/kpp: add code to have mixing in shelf ice caverns
729      - add myThid to all kpp routines (long overdue)
730    
731    checkpoint59
732    o pkg/exf:
733      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
734        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
735      - move exf header files from lower_case.h to UPPER_CASE.h ;
736        add missing cvs Header & Name
737      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
738      - add namelist param. selectStressGridPosition, exf_monFreq
739      - retire many _CLIM routines, and remove data.exf_clim
740        + params moved to data.exf
741        + climsst, climsss now handled by exf_set_gen, i.e.
742          climss?period=0 refers to constant field,
743          climss?period=-12 to monthly forcing
744      - split up namelists in data.exf
745    o pkg/seaice:
746      - remove seaice_exch and seaice_exch_uv
747      - remove superfluous exchange of theta
748      - add myThid to seaice_budget_ocean/ice
749      - add new interface for atmospheric wind forcing (C-grid only)
750        + new routine
751        + two new field (taux, tauy for stress over ice)
752        + removed one global field (DAIRN) for C-grid case only
753    o pkg/thsise
754      - 2nd set of modifs for thsice adjoint in conjunction with exf
755    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
756    
757    checkpoint58y_post
758    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
759      vertical diffusivity, similar to that in MOM4; turned on using
760      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
761      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
762    o Added capability for 3D specification of background vertical diffusion
763      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
764      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
765      "data" file that contains the 3D vertical diffusivity coefficients.
766    o ice dynamics (pkg/seaice) with thsice thermodynamics:
767      - add code within pkg thsice to advect & diffuse sea-ice fields
768      similar to (and will replace) what has been added in  seaice_advdiff.F,
769      but: - conserving Mass, Heat & Salt.
770           - better when using non-linear advection scheme (not yet fully tested)
771           - can also be used in atmospheric set-up (for now, only the diffusion).
772    
773    checkpoint58x_post
774    o IO option for global-file compact format:
775      - add options when generating topology (utils/exch2/matlab-topology-generator)
776      - add I/O capability (pkg/mdsio).
777      - adapt utils/matlab/rdmds.m to read this format.
778      for now long-line format not yet supported by pkg/mdsio (& exch2).
779    o shelfice: add a few diagnostics
780    
781    checkpoint58w_post
782    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
783      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
784      (and replace horiVertRatio in NH code).
785      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
786                         and tutorial_plume_on_slope (sensitive to truncation)
787    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
788      directly to drive seaice model (C-grid only)
789    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
790     - reintroduce computation of wind from stress,
791     - compute tau (in exf_bulkformulae.F) from windstress averaged to
792       mass points to avoid tau = 0
793     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
794    o rdmnc.m: make it work with "global" files created with gluemnc
795    o rdmnc.m : some improvements in dealing with singleton dimension
796      (tested on all testreport mnc output files).
797    o genmake2: disable pkg/profiles if netcdf test fails.
798    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
799    o move call to cal_readparms up to make calendar parameters/variable available
800      to all packages
801    
802    checkpoint58v_post
803    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
804      useDynP_inEos_Zc tested.
805    o pkg/exf: changes to properly interpolate/mask/scale initial fields
806    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
807      and portions thereof.  See read_cs.txt for description and examples.
808    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
809      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
810      following the great-circle arc between those 2 points.
811    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
812      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
813    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
814     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
815     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
816     - still needs work (not working with some options ; efficiency to improve)
817       and serious testing.
818     - use this scheme for temperature & salinity in 2 advection test exp.:
819       advect_xy & advect_xz, respectively.
820    
821    checkpoint58u_post
822    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
823    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
824    o testreport: add option "-skipdir" to skip some test.
825    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
826      momentum calculation.
827    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
828    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
829      remove checkpoint.F and the_correction_step.F (no longer used);
830      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
831    o add option (linFSConserveTr) to correct for tracer source/sink due to
832      Linear Free surface
833    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
834    o pkg/thsice: fix reading mnc-pickups
835    
836    checkpoint58t_post
837    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
838    o pkg/mdsio:
839     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
840       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
841       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
842     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
843     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
844       either MDS_READ_FIELD or MDS_WRITE_FIELD )
845     - new S/R (to replace MDSWRITEMETA), which allows to write more
846       informations (variable names, time ...) to meta files.
847     - modify rdmds.m to give back the meta file content.
848    o pkg/diagnostics: change vertical interpolation to be safer, and more
849       flexible (define p-levels to interpolate to in data.diagnostics);
850      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
851       diagnostic pointer.
852    o pkg/seaice: more cleaning up of seaice_growth, added many comments
853    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
854    o fix multi-category seaice:
855     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
856       SEAICE_MULTICATEGORY
857     - fix short wave heat flux
858    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
859       and allow to use EVP solver. Change forward lab_sea: test both EVP
860       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
861    o Initial check-in of lab_sea adjoint
862      (very similar to natl_box_adjoint/code_seaice)
863      * used C-grid and EVP solver
864      * used KPP, GM/Redi
865      * uses inAdExact=.TRUE.
866      * gradient checks fail for both ADM and TLM
867        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
868        f.d. gradients actually seem more problematic than ADM, TLM gradients;
869        issue is related to forward mismatch between g77 an ifort
870    o pkg/seaice: overhaul of thermodynamics
871     - growth.F and groatb.F are replaced by new routine seaice_growth.F
872     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
873     - move a few global fields out of SEAICE.h into seaice_growth.F and
874       make them 2D (FICE/QNETO/ ...)
875     - remove FO (it is the same as QNETO)
876     - introduce a few local fields to avoid modifying external fields such
877       as atemp, etc.
878    
879    checkpoint58s_post
880    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
881      changed exf_set_gen.F so that
882        genperiod=0 means input file is one time-constant field and
883        genperiod=-12 means input file contains 12 monthly means
884    o CG2D: use pre-computed solver main-diagonal (stored in common block);
885      this affects truncation error ; generate new output file for exp. which
886      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
887        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
888        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
889        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
890        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
891        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
892    o start implementation of deep-atmosphere and anelastic formulation
893    o verification: remove 2nd copy of input files and use script "prepare_run"
894      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
895    o mom_common/vecinv/fluxform: fix a few initialisation isssues
896    o profiles: fix for multithreaded case
897    
898    o diagnostics: rename few diags:
899      s/'PRESSURE'/'RCENTER '/g
900      s/'TICE    '/'oceFreez'/g
901      s/'TAUX    '/'oceTAUX '/g
902      s/'TAUY    '/'oceTAUY '/g
903      s/'SWFLUX  '/'oceQsw  '/g
904      s/DIFx/DFxE/g
905      s/DIFy/DFyE/g
906      and add few ocean-forcing diagnostics:
907      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
908    o modifications to pkg/seaice/growth.F and budget.F, which change results of
909      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
910      as actual snow thickness.  It now refers everywhere to effective snow
911      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
912    
913    checkpoint58r_post
914    o modifications to pkg/seaice/growth.F, which change results of
915      lab_sea experiment: fixes pertain to melting snow over open water, to
916      masking EVAP under sea ice, and to using the correct AREA variable for
917      computations of EVAP, PRECIP, HSNOW, and GHEFF
918    o add ability to read bathy, salt, and theta using MNC (off by def)
919    o add flooding algorithm and advection of HSNOW for pkg/seaice;
920      both are turned off by default and do no change any results
921    o seaice advection with pkg/thsice: a step toward the use of non-linear
922      advection scheme, but #ifdef or commented out for now (requires more EXCH).
923    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
924      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
925      in natl_box (affects results @ truncation level: update output.txt)
926    o multi-threading and IO:
927      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
928      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
929        (needed to work with SingleCpuIO): tested in all verif. exp.
930    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
931      affects the results (but none of the verification test uses this scheme).
932    o Adding some pkg/diagnostics capability to pkg/seaice
933      (will certainly be subject to changes)
934    o ctrl: adding new control variables:
935      lwflux, lwdown, evap, snowprecip, apressure, runoff
936    
937    checkpoint58q_post
938    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
939      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
940      high_res_cube configuration by 4% on Columbia.
941    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
942      add (in global_with_exf/code) a version of EXF_INTERP_READ without
943      dynamical allocation (seems to work in multi-threaded).
944    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
945      single CPU io) so that TAF does not have to see EESUPPORT.h
946    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
947    
948    checkpoint58p_post
949    o obcs: stop if obcs is used with useCDscheme = .true.
950    o shelfice:
951     - fix a sign error so that no slip at shelfice interface works
952     - remove stop for combination non-hydrostatic code and shelfice. That does
953       not mean, that the results are correct, but at least they are numerically
954       stable
955    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
956    o added adjoint exch routined for all exch*3d* routines
957      and updated flow directives
958    
959    checkpoint58o_post
960    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
961      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
962    o change controling S/R for writing pickup file (new S/R do_write_pickup)
963      and clean-up reading/writing of pickup files.
964    o fix local version of read/write pickup (NH part) in rotating_tank/code
965    o simplify EXCH interface:
966     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
967     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
968    o added the regrid package
969    o shelfice:
970     - add a simple boundary layer scheme to reduce noise
971     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
972    
973    checkpoint58n_post
974    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
975       local variable (not in common block).
976    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
977      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
978      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
979        to work with SingleCpuIO.
980    o add "_d 0" to real constant of pkg/cfc subroutines ;
981       update exp. cfc_exemple & tutorial_cfc_offline output files.
982    o multi-threading and IO:
983      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
984        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
985      - barrier before and after reading.
986      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
987      - avoid using MDS_WRITELOCAL for LAND pkg output.
988      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
989        common-block variables ; Allows multi-threading with master-thread IO.
990    o change default MAX_NO_THREADS from 32 to 4 ;
991      and stop cleanly when MAX_NO_THREADS is too small.
992    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
993    
994    checkpoint58m_post
995    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
996       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
997    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
998       keep global_ocean.90x40x15 (for AD testing) with former secondary test
999       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1000    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1001        add MITgcm_tutorials (= code + all the tutorials)
1002    o ecco, option to compute cost for total ssh (mean+anom)
1003    o consistent with addition of ptracer and ssh in pkg/profiles
1004    o profiles: adding ptracer and ssh
1005    o testreport: change multi-test output-file name
1006      (from output.txt.{name} to output.{name}.txt)
1007    o profiles: now ok for mutli-tiles case
1008    o seaice: add 4 parameters for different advection schemes for area,
1009      (effective) seaice thickness, enthalphy, and snow height. Their default
1010      is the standard parameter SEAICEadvScheme
1011    o calc_gw:
1012     - add cosFacU in zonal viscous flux (harmonic.visc.).
1013     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1014       of tutorial_plume_on_slope.
1015    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1016    o calc_gw: true flux-form, account for horizontal grid spacing.
1017      update rotating_tank results, but not plume_on_slope (affected at
1018      truncation level, 11 digits).
1019    
1020    checkpoint58l_post
1021    o calc_gw:
1022     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1023     - remove side-drag for now (need to fix it); update plume_on_slope results.
1024     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1025    o commit code to make SST/SSS weights spatially variable
1026      (based on either variable in-situ or variable initial T/S weights)
1027    o pkg/ecco:
1028      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1029        now based on horizontally varying weights wthetaLev, wsaltLev
1030      * cost_averagesflags now returns year indices in addition to day, month
1031      * sflux balance is performed on annual basis
1032        (sflxumm, sfluxmm2, bal_sfluxmm)
1033      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1034        including separate counting and multipliers
1035    o pkg/rbcs
1036      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1037    
1038    checkpoint58k_post
1039    o testreport:
1040     - always build in dir. "build" (if not there, mkdir build instead of building
1041       & running in input)
1042     - run in dir run (if it exists), in build otherwise.
1043     - call prepare_run (if input/prepare_run exists)
1044     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1045    o pkg/exf modifications to interpolation and rotation routines for more
1046       reasonable treatment of North Pole singularity: for tracers North Pole
1047       value is set to northernmost zonal-mean value, for zonal velocity it is
1048       set to zero, and for meridional velocity it is set to northernmost value.
1049    o pkg/exf/exf_check_range.F
1050     - add tile index to diagnostics and move stop statement to the very
1051       end of the routine.
1052    o pkg/diagnostics: (diagnostics_main_init.F)
1053      define title of isomorphic variables according to the current config.
1054    o pkg/thsice with pkg/seaice dynamics:
1055    - fix domain of computation (interior only, required for exf) and do exchanges
1056    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1057    o towards a standard way of dealing with multi-threading in MONITOR
1058      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1059    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1060       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1061    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1062    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1063    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1064       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1065    o tracer advection:
1066     - clean-up and simplify calc_common_factors.F
1067     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1068       advection subroutine (but still not used within DST advection S/R)
1069    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1070    
1071    checkpoint58j_post
1072    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1073      from file (collects calls previously in FORWARD_STEP)
1074    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1075    o adjoint store dir. adjusted accordingly
1076    o genmake2
1077      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1078    
1079    checkpoint58i_post
1080    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1081      on wind stress (SEAICEstressFactor defaults to 1.)
1082    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1083      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1084    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1085      on CS-grid: no longer loosing mass.
1086    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1087    o pkg/ggl90: fix sloppy output and fix a bug
1088    o pkg/seaice: added SEAICEuseEVPpickup parameter
1089      - Set to false in order to start EVP solver with
1090        non-EVP pickup files when using SEAICEuseEVP
1091      - fix sign error in diffusion in seaice_calc_rhs
1092    
1093    checkpoint58h_post
1094    * Modifications for bottom topography control
1095      o replace hFacC by _hFacC at various places
1096      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1097      o add non-self-adjoint cg2d_nsa
1098      o update autodiff support routines
1099      o re-initialise hfac after ctrl_depth_ini
1100      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1101    * Adding verification for 5x5 box (4-layer) bottom topography control
1102    
1103    checkpoint58g_post
1104    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1105       used for mean seasonal cycle, mean diurnal cycle); add an example
1106       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1107    o pkg/ggl90:
1108      - add parameter (minimum surface kinetic energy)
1109      - fix bug (avoiding division by zero)
1110    o couple pkg/thsice to pkg/seaice:
1111      - modify advection in seaice to accomodate new scalar fields to be advected
1112      - only muliDimAdection scheme work with seaice/thsice
1113      - mapping of thsice-variables to seaice-variables, back and forth
1114      - does not break the verification experiments, but does not give the
1115        desired results either
1116    o pkg/seaice
1117      - make (default) second order advection a bit less confusing?
1118    
1119    checkpoint58f_post
1120    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1121      to pkg/seaice):
1122      - new routines thsice_map_exf and thsice_get_exf provide the interface
1123      - add an additional formal parameter to thsice_solve4temp
1124    o pkg/exf:
1125      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1126      - correct Stefan-Boltzmann constant
1127      - new parameter for longwave surface emittance
1128      - separate some stuff from exf_bulkformulae into new routines  
1129        exf_radiation, exf_wind
1130      - add new parameters and constants: longwave emissivity for ocean, ice
1131        and snow, evaporation parameters over ice
1132      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1133        either wind from stress or stress from wind
1134    o pkg/thSIce:
1135    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1136    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1137       and THSICE_CALC_THICKN
1138    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1139    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1140      to make debugging easier.
1141    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1142    o pkg/bulk_force:
1143      - clean-up comments and parameters ;
1144      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1145    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1146      generate new output for test-experiment: aim.5l_cs.thSI
1147    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1148      testreport accordingly
1149    
1150    checkpoint58e_post
1151    o SEAICE_CGRID adjoint done
1152    o R_STAR adjoint implemented.
1153      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1154      * need to sort out init. of h0facc, etc.
1155    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1156      to be able to use it in pure forward.
1157    
1158    checkpoint58d_post
1159    o upgrade simple test-experiment to tutorial example:
1160     step.1: duplicate the experiment and (step.2) will remove the old copy.
1161      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1162      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1163      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1164      tutorial_global_oce_biogeo    <- copy of dic_example
1165      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1166      tutorial_plume_on_slope       <- copy of plume_on_slope
1167      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1168      tutorial_global_oce_optim     <- empty for now (David ?)
1169      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1170     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1171    o correct a sign problem in cost_scat.F
1172    o obcs and ptracers: fix boundary conditions for advections schemes
1173      with larger stencil
1174    o thsice adjoint: start
1175    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1176      completeness
1177    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1178      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1179    o ptracers adjoint:
1180      * avoid extensive recomputatations
1181      * fix missing re-init. of gptr (missed by TAF)
1182    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1183      me to turn off the excessive output to STDOUT that this package produces
1184    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1185      and add those terms in Vector-Invariant formulation.
1186    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1187      if the control period (xx_hfluxperiod etc) is 0
1188    o in profiles pkg, clean routines and fix details
1189    o in ecco pkg, reading ssh data:
1190      fix problem in case the model does not start at iter0=0
1191    o fix mnc-pickup/restart for ptracers
1192    o new package prifiles:
1193      code to compute profile-based cost by Gael Forget
1194      (modifs in ecco, ctrl, autodiff)
1195    o Benign bug fix in initialization (spotted by M. Mazloff) of
1196      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1197    
1198    checkpoint58c_post
1199    o adjoint: finish NLFS adjoint and provide reference output in
1200      verification/global_ocean.90x40x15/results_ad_nlfs
1201    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1202      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1203      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1204      with SEAICE_CGRID defined.
1205    o move calendarDumps from "data" to "data.cal" and clean-up the code
1206      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1207    o add useEXF & useCAL flags (for now, set in hard-coded way)
1208    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1209      (were missing in NH mode, and wrong in quasihydrostatic mode).
1210      waiting for Chris updated version of calc_gw to add those CALLs.
1211    o fix bug in quasihydrostatic S/R ;
1212      add a test for this option: global_ocean.90x40x15.qshyd
1213    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1214      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1215    o add on/off flag useOffLine for package OFFLINE
1216    o seaice:
1217      - modify advection so that it works also on the C-grid
1218      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1219        problem in multi-tile runs with C-grid
1220      - add flags for clipping ice velocities and/or masking solver forcing
1221      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1222        C-grid solver
1223      - added a few comments to seaice_diffusion.F
1224      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1225        are now exclusive)
1226      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1227        required re-ordering the code a little:
1228       + make DAIRN global variable (defined in SEAICE)
1229       + move computation of the viscosities eta and zeta into a new separate
1230         routine (because I need to recompute them in seaice_ocean_stress.F)
1231    
1232    checkpoint58b_post
1233    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1234      update output.txt of exp. aim.5l_cs.thSI
1235    o various mnc cleanups and improvements:
1236      + shrink lookup tables by factor of ~4
1237      + better error reporting when running out of lookup space
1238      + able to handle longer path/file names (up to 500 chars)
1239    o adjoint:
1240      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1241      - TBD: "hidden" mom_vecinv recomp. in dynamics
1242    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1243     (allow to differentiate between forcing components using new integer flags:
1244      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1245     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1246    o ecco
1247      - enable trend removal from SSH anomaly obs.
1248    o adjoint
1249      - a fix for PmEpR when #undef EXACT_CONSERV
1250      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1251      - try to fix "hidden" recomp. in forward_step for NLFS
1252        (NLFS seems broken sometimes after I checked it in)
1253    o seaice:
1254     - add c-grid version of the dynamic solver:
1255       + three new routines that are the c-grid substitute lsr, dynsolver
1256         and ostres
1257       + put a few fields that were local to dynsolver into global common
1258         blocks, so that I can move the computation of stresses etc into
1259         seaice_lsr (saves coding but may break the adjoint).
1260     - replace more hardwired parameters by runtime parameters
1261     - add ice masks that mask the rhs of the implicit solvers where there
1262       is no ice (commented out in seaice_dynsolver, because i am not sure
1263       if this works properly), eventually this should replace the clipping
1264       of ice velocities in seaice_dynsolver to +/-40cm/s.
1265    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1266      include it only where its needed
1267    o move balancing of fluxes before the call of external_forcing_surf
1268    o seaice:
1269      - correct units of turning angles (now they are really in degrees)
1270      - move computation of GWATX/Y out of main routine into dynsolver
1271      - initialize GWATX/Y in seaice_init
1272    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1273      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1274    o seaice: add runtime flags for turning angles (default to zero)
1275    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1276      and trend from exf forcing and ctrl control adjustments
1277    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1278      (since checkpoint57x_post)
1279    o change the default rotation period to 86164.s = the Earth rotation
1280    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1281      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1282    o seaice advection: add code for choosing between the default (2nd order
1283      central differences) and multiDim advection schemes provided by
1284      pkg/generic_advdiff
1285    o seaice:
1286      - removed all references to SEAICE_GRID.h fields from
1287        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1288        (cubed-sphere configuration will change a little)
1289      - grid computations in seaice_init are obsolete now.
1290      - cleaned up code a little so that is easier to read (hopefully).
1291      - added new (better?) discretizations of default advection and diffusion
1292        (turn on with SEAICEuseFluxForm)
1293      - replace 1 in 3d global fields by kSurface in growth.F
1294      
1295    checkpoint58a_post
1296    o seaice:
1297      - bug fix in advect.F
1298    o shelfice:
1299      - separate shelfice load anomaly from pload (breaks with time
1300        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1301        Its default is 0., but it may be computed more cleverly from (unknown)
1302        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1303        done offline. A good approximation of the pressure load anomaly is
1304        necessary to avoid large initial adjustment processes underneath
1305        deep-reaching shelfice.
1306      - small fix in ISOMIP shelfice_thermodynamics
1307      - add more sophisticated thermodynamics of Hellmer (1989), this is
1308        now the default
1309      - give a few constants more intuitive names
1310    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1311      if bulk formulae are used in long integration (especially EmPmR). Turn
1312      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1313      if balancePrintMean, the imbalance that is substracted is printed to
1314      STDOUT.
1315    o fix bug (typo) in obcs_apply_eta.F
1316    o add a new package shelfice which enables us to model the circulation
1317      underneath shelf-ice with draughts of hundreds of meters.
1318     - works
1319     - to do: + include improved thermodynamics
1320              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1321                instead of new field kTopC
1322              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1323                instead of new field R_shelfIce and new code in ini_depth.F
1324                and ini_mask_etc.F?
1325              + adjust vertical mixing schemes?
1326    o seaice pkg:
1327     - add a cpp-flag to include a simple formula for a salinity dependent
1328       freezing point of sea water at the surface
1329     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1330       meridional stresses are now different (and hopefully correct)
1331    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1332       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1333       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1334    o pkg/diagnostics: add options and parameters for regional-statistics
1335       diagnostics ; define regions by reading a region-mask from a file
1336       (might add other options later)
1337    o pkg/bulk_force:
1338     - add option and parameters to use AIM surface-flux formulae.
1339     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1340       others forcing fields (defined in PARM05, parameter file "data") are loaded
1341       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1342     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1343     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1344     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1345       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1346     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1347    
1348    checkpoint58
1349    o add "--embed-source" option to genmake2 which, when the supporting
1350      tools can be compiled (as determined by genmake2) will turn on the
1351      embed_files package which then embeds the entire MITgcm source code
1352      (*.[fFhc] + Makefile) used for the build within the executable
1353      - requested by CNH but off by default
1354      - adds a paltry <9MB to the mitgcmuv executable in most cases
1355      - only writes the output when useEMBEDSRC in eedata is true
1356    o clean up 3-dim. relaxation codes:
1357      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1358      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1359      * Thanks to Tom Haine for testing!
1360    
1361    checkpoint57z_post
1362    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1363      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1364    o fix the pickup behavior for obcs in combination with ptracers
1365    o fix a bug in ptracers_external_fields_load
1366    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1367      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1368    o transfered surface NH pressure to eta field (if exactConserv).
1369    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1370         and update lab_sea output.txt file.
1371    o completing 3-dim. relaxation code: additional term
1372         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1373      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1374      * At compile time, in "EXF_OPTIONS.h" set
1375          #define  ALLOW_CLIMTEMP_RELAXATION
1376          #define  ALLOW_CLIMSALT_RELAXATION
1377      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1378          tauThetaClimRelax3Dim = 15552000.0,
1379          tauSaltClimRelax3Dim  = 15552000.0,
1380      * 3 cases:
1381          1) Use a constant-in-time 3-dim. field
1382          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1383          3) Real-time relax. to time-evolving prescribed field
1384    o Adding Laplacian-type smoothness constraint on
1385      initial and boundary (forcing) controls (ic, bc)
1386      * enable at compile-time via
1387        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1388      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1389      * Absolute scale somewhat unclear so far
1390      * no area weighting was included since no other cost term does so far
1391    
1392    checkpoint57y_post
1393    First step for a NLFS adjoint
1394    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1395    o new init. routines for calc_r_star, calc_surf_dr
1396    o still need to deal with ini_masks_etc
1397    o testreport seemed happy
1398    checkpoint57y_pre
1399    
1400    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1401    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1402    o add new offset feature to offline pkg (plus minor cleanup)
1403    o cfc fixes for final year of integration
1404    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1405      be in GCHEM_OPTIONS).
1406    
1407    checkpoint57x_post
1408    o fix testreport Pb in multiple test experiment.
1409    o cleanup our namelist syntax in verification:
1410      - make it more F95 standards compliant (some work still needed)
1411      - allows the vast majority of our tests to work with gfortran
1412    o Non-Hydrostatic:
1413     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1414     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1415    o Allow to apply AB on T,S rather than on AB(gT,gS):
1416     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1417     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1418       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1419     - need a "clever" read_pickup to restart from the other AB formulation
1420    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1421    o remove some unused variables (reduces number of compiler warnings)
1422    o adjoint
1423      * Disable useVariableViscosity for adjoint for time being
1424        (there are a number of extensive recomputations)
1425      * Initialize certain variables needed for adjoint
1426    
1427    checkpoint57w_post
1428    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1429                 fix the singleCpuIO RS version of MDSWRITEFIELD
1430       and add a WARNING if using globalFiles=T with multi-processors.
1431    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1432      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1433    o tracer advection scheme:
1434      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1435       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1436       was not very convenient).
1437      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1438       (further tests needed for the implicit DST & Flux-Limiter schemes).
1439    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1440      and sRef for convenience, handy, when you want to initialize
1441      ptracers in a large domain with a constant non-zero value. Also,
1442      untangle ptracers_init.F a little.
1443    
1444    checkpoint57v_post
1445    o change dome exp. to use variable viscosity in side-drag terms.
1446    o remove all the files from the cfc_offline test since they are now
1447      incorporated into tutorial_cfc_offline which has been producing
1448      identical results for a few days of testing
1449    o add new parameter: sideDragFactor to enable half-slip-side BC
1450      and change side-drag S/R to use viscosity from mom_calc_visc
1451      (can switch back by setting sideDragFactor=0.); affects results at
1452      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1453       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1454    o vorticity & strain are now computed without masking, to account for
1455      no-slip-side BC in variable viscosity calculation ; mask is applied
1456      anyway later on, before computing advection/coriolis terms.
1457    o modify exp4 to test new obcs support for reading from external files
1458      and for passive tracers
1459    o fix behavior of ptracers_monitor when monitor output is written to a
1460      netcdf-file; still not independent of monitor.F (writes in the same
1461      file).
1462    o change default value of tRef (put a uniform, meaningful value for ocean
1463      & atmos) and initialize sRef (was missing, as Martin mentioned).
1464    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1465      to be proportional to enstrophy dissipation length.  Thus,
1466       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1467      This is now consistent with Smagorinsky and with the manual.
1468    
1469    checkpoint57u_post
1470    o OBCS and PTRACERS: add open boundary support for passive tracers
1471      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1472        OB-values from file; this is not different from the way theta and salinity
1473        are treated
1474      - however, Orlanski-radiation conditions are not supported, and the model
1475        will stop if you use pTracers and Orlanski at the same time.
1476      - beefed up the rountine obcs_external_fields_load: now only those open
1477        boundary values are overwritten with values from files for which there
1478        are really files, otherwise the OB-fields remain untouched. This makes
1479        it possible to use different OBs at different ends of the domain (as
1480        with EXF)
1481    o reduce number of exch calls in shap_filt (s2).
1482    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1483      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1484    
1485    checkpoint57t_post
1486    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1487    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1488      same truncation, independent of the face number: affects affects several
1489      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1490    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1491      note that biharmonic viscosity + no-slip was not tested in any experiment.
1492    o fix bug in non-linear free-surf side-drag ; generate new output for
1493      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1494    o make mnc honor the writeBinaryPrec flag for most kinds of output
1495    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1496    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1497      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1498    o add brackets in multi-terms sum to get same truncation, independent of
1499      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1500      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1501    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1502      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1503      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1504      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1505      Suggested values of viscosity parameters found in mom_calc_visc.
1506      Many new viscosity diagnostics available.
1507    
1508    checkpoint57s_post
1509    o Add clearing-house for viscosity calculations, mom_calc_visc and
1510      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1511      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1512      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1513      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1514      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1515      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1516      ViscAhStrain and viscAhTension are now retired.
1517    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1518    o In response to JMC's bug report, genmake2 now ignores any soft-links
1519      that it finds in the *current* directory when searching for files.
1520      Soft-links found in any other source directories will still work as
1521      they did before.
1522    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1523      a C routine to unlimit the stack size
1524    o mnc-ify pkg/aim snapshot vars
1525    o mnc-ify pkg/land as requested by Daniel
1526    o various changes to mnc including:
1527      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1528      - output can now be grouped so that all files within a group
1529          change the ITER portion of their names in lock-step together
1530      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1531          and works with both EXCH1 and EXCH2 (but needs more testing)
1532      - writing works for all verification test cases w/ g77 on Linux
1533    
1534    checkpoint57r_post
1535    o make MNC variable initialization happen earlier
1536    o add diagnostics for (almost) each term of the momentum Eq.
1537    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1538    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1539    o remove MINIMAL_TAVE_OUTPUT option ;
1540      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1541    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1542      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1543    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1544    o add time-dependent SST, SSS control
1545    o cost terms in ecco/ modularized (new cost_generic.F)
1546    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1547    o new infrastructure for seaice model vs. obs misfits in seaice/
1548      * driver from the_main_loop.F is seaice_cost_driver.F
1549      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1550      * gradient check in Exp. 6a of natl_box_adjoint/
1551    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1552      (see README file)
1553    
1554    checkpoint57q_post
1555    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1556    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1557      - bug was reported by Jean-Michel and Ian Fenty
1558    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1559      update exp. cpl_aim+ocn output.
1560    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1561      Needed for high-res. runs with large global files
1562      to be able to limit tapelev size
1563    o Changed some tests for adjoint:
1564      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1565      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1566      * global_ocean.90x40x15/ back to default 3-level checkpointing
1567    o Modifications to enable scripted COMMON to MODULE conversion
1568      * verification/OpenAD/code/ has necessary scripts and description;
1569      * converts, compiles and runs successfully;
1570    
1571    checkpoint57p_post
1572    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1573    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1574      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1575    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1576    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1577      (was already the case for dissipation with mom_vecinv,
1578       and also the case for grad.PhiHyd when staggered-timeStep)
1579      This will allow to put dissipation out-off the AB time-stepping.
1580     Unfortunately, affects truncation error. Update output of exp. that "fails"
1581      (cg2d matching number) and leave the others for later: front_relax(10),
1582      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1583      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1584    
1585    checkpoint57o_post
1586    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1587      (2) its ready to be documented during the 20050801 DocFest
1588    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1589      for ideal_2D_oce and lab_sea on linux_ia32_g77
1590    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1591      in global1x1_tot/code_seaice_adj to access indices 32, 33
1592      (worth another tag)
1593    
1594    checkpoint57n_post
1595    o adding precip control xx_precip 32
1596    o adding swflux control xx_swflux 33
1597    o Replacing 10 forcing penalty cost routines by 1 generic.
1598    o Implementing partitioning in time-mean and variable adjustment
1599      for atmos. state.
1600    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1601    o in natl_box_adjoint:
1602      * updated exp 1 to 10
1603        (but does not have time-mean vs. variable split results yet)
1604    o updated global1x1/*_seaice_adj/
1605      to incorporate latest changes
1606    o enable useSingleCpuIO for mdsio vector routines
1607      (applies in particular to tapelev I/O)
1608    o removed inefficient K-loop in all active_file*control*.F
1609    
1610    checkpoint57m_post
1611    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1612      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1613    o pkg/exch2: filling of face-corner halo regions is optional
1614      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1615    
1616    checkpoint57l_post
1617     tag before updating tutorials (pre-release-2)
1618    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1619       for output and interpolation of input fields onto model grid)
1620    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1621       Affects results of exp. rotating_tank ; update output.txt.
1622    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1623          and taking the square quantity and/or using a fraction-weight field.
1624    o fix aim_diagnostics_init.F mate numbers.
1625    o add mnc output capability to diagnostics/diagstat and update
1626      our cvsignore files for the ACSII output generated
1627    
1628    checkpoint57k_post
1629    o lab_sea now uses diagnostics package and provides a suite of
1630      new EXF diagnostics output.
1631    
1632    checkpoint57j_post
1633    o exf
1634      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1635        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1636        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1637      * extended diagnostics output
1638        - now includes all EXF variables
1639        - hs, hl moved to common block
1640        - separate S/R for diagnostics, called after ctrl vector is added
1641        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1642        - EXFqnet contains true Qnet (i.e. includes qsw)
1643      * updated verif. lab_sea, global_with_exf
1644      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1645        to ensure that diagnostics sees a true EXFqnet
1646    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1647    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1648      several times with different frequencies.
1649    o mnc-ify the thsice package as requested by Daniel Enderton
1650      - the monitor--MNC output needs work
1651      - many attributes need to be added (most are currently blank)
1652    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1653      - many attributes need to be added (most are currently blank)
1654    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1655    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1656    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1657      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1658         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1659    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1660     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1661    
1662    checkpoint57i_post
1663    o Diagnostics package was changed: diagnostic allocation is now deactivated
1664      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1665    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1666      add 1rst Order upwind vertical Shear.
1667    o add a quick fix for A/B checkpointing in OFFLINE mode
1668    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1669      end-run around the C/Fortran linking horror in eesup/src/timers.F
1670    o added pkg/runclock: allows user to terminate run based on wall clock
1671    o added non-hydrostatic scaling parameter: nh_am2
1672    o pkg/my82: futile attempt to make results compiler-independent by adding
1673      some "_d 0", etc. no effect.
1674    o for mnc output, fill the 'T' coordinate var with myTime and create a
1675      separate 'iter' variable for iteration count
1676    o pkg/diagnostics:
1677      add new capability: output of Global/Regional & per-level statistics ;
1678      tested against monitor output (including land & thSIce) on various exp.
1679    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1680    
1681    checkpoint57h_done
1682      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1683      data.diagnostics, data.gchem, data.ptracers) is done.
1684    
1685    o pkg/diagnostics: prepare for Global/Regional statistics.
1686      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1687    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1688      and rename it: DIFFERENT_MULTIPLE
1689    
1690    checkpoint57h_post
1691    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1692    o pkg/diagnostics: change output frequency, now in seconds (instead
1693      of Nb of iterations). This requires to change data.diagnostics.
1694    checkpoint57h_pre
1695    
1696    o in mnc, let the user create the output dir if both mnc_outdir_date
1697      and mnc_outdir_num are false
1698    o add fflags() to pkg/diagnostics which allows one to specify, on a
1699      per-file basis, the file precision [default behavior is unchanged]
1700    o added diagnostics to pkg/kpp, including computation of mixed layer
1701      depth based on a temperature/density criterion
1702    o updated verification/natl_box to test the new pkg/kpp diagnostics
1703    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1704    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1705    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1706      not mnc -- this mistake was found by JMC and is now corrected
1707    
1708    checkpoint57g_post
1709    o add Adams-Bashforth 3rd Order time stepping:
1710      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1711      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1712    checkpoint57g_pre
1713    
1714    o make lambda[Theta,Salt]ClimRelax spatially varying
1715      (default remains spatially uniform constant based on tau)
1716    o added new control variables
1717      * init. uVel, vVel, etanN
1718      * lambda[Theta,Salt]ClimRelax
1719    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1720      (suggested by G. Forget)
1721    
1722    checkpoint57f_post
1723    o add parameter "baseTime" = model base time = time at iteration zero
1724      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1725      account for baseTime shift
1726    o move Coriolis arrays from PARAMS.h to GRID.h
1727    checkpoint57f_pre
1728    
1729    o mnc-ifying the seaice package
1730    o introduced an alternative length scale calculation for use in the limiting
1731      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1732    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1733    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1734      as well as grad(vort3).  Made it compatible with both approximate form
1735      for the cubed sphere and full form of these gradients.  Added flag
1736      useFullLeith to select between approximate and full form.  
1737    o add "d0" in getcon.F to reduce differences between compilers/platforms
1738      update output.txt of exp. fizhi-gridalt-hs
1739    o change port_rand funtion to allow to set the seed.
1740    o fix obscure MNC bug involving conversion between reals and integers
1741      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1742        new version is now more standards-compliant
1743    o adjoint-related modifications
1744      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1745      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1746      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1747    
1748    checkpoint57e_post
1749    o Adding eddy stress controls a la Ferreira et al.
1750    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1751    
1752    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1753      update output.txt of exp. fizhi-gridalt-hs
1754    o add more "Z" dimensions and associated coordinate vars to MNC
1755    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1756    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1757      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1758      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1759      months and years.  Requires pkg/cal.
1760    o diagnostics: add pickup functionality
1761      - off by default for backwards compatibility
1762      - current version only uses MDSIO -- MNC will be added
1763    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1764    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1765    
1766    checkpoint57d_post
1767    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1768    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1769      output from the diagnostics package
1770    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1771    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1772      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1773    o add coordinate variables to the MNC output from the diagnostics package
1774    o change MNC-flags default value: true when useMNC=TRUE
1775    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1776      the ability (off by default) to read the grid information using MNC
1777    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1778    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1779    o do snap-shot diagnostics at the middle of the time-interval (instead of
1780      at the end).
1781    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1782      new test for AIM with thSIce + slab-ocean
1783    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1784    o move state variable diagnostics to the beginning of the time step ;
1785      (note: still needs some work specially for snap-shot diagnostics)
1786      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1787    
1788    checkpoint57c_post
1789    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1790    o generate new output.txt files on faulks with g77 & the new -ieee option
1791    checkpoint57c_pre
1792    
1793    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1794      update output.txt of exp. global_ocean.90x40x15
1795    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1796      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1797    o add saltFlux(+File) forcing capability with periodicExternalForcing
1798    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1799    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1800    o improvements for the MNC output from DIAGNOSTICS:
1801      - correct handling of the unlimitied dimension
1802      - all dims now have associated coordinate variables
1803      - variables located at U, V, and Corner ("Z") points are now written
1804        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1805        *all* data points are output
1806    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1807    o added pkg/seaice/seaice_monitor.F
1808    o mdsio_readfield.F can now read files visible only to master MPI process.
1809    o pkg/seaice: some test code for ice-modified ocean stress
1810    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1811      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1812      spurious negative numbers for precipitation and humidity.  Will cause
1813      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1814    o pkg/ctrl/
1815      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1816        May be enabled via doPackDiag
1817      *  introduce z-scaling of
1818         + gradient (doZscalePack) and
1819         + control (doZscaleUnpack)
1820    o pkg/mdsio/
1821      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1822      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1823    
1824    checkpoint57b_post
1825    o simplify options in diagnostics_fill arguments (remove weird combinations)
1826    o fix MNC coordinate variables so that they now contain per-face index
1827      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1828      general, EXCH2 grids are only aligned to a "local" coordinate system
1829    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1830    o Implement instantaneous output within pkg diagnostics:
1831      setting a negative frequency in data.diagnostics produces
1832     "snap-shot" output (as opposed to time-average if freq > 0)
1833    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1834      NOTE: change ptracer diagnostics name: use 2 characters to work with
1835            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1836    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1837      becomes the coordinate variable for the 'T' dimension
1838    o add CF-style coordinate variables to MNC
1839      - just a first cut:  numbers are meaningless on the cubesphere and
1840        missing along the T axis but otherwise it works!
1841    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1842    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1843    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1844      this is based directly on what the model compute, so that the content of
1845      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1846    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1847    o clean up build options files for SunOS, in particular
1848      - remove -traditional from xmakedepend
1849      - change -xarch=v9 to -xarch=native for f77
1850      - restore use of make (not gmake)
1851      - add CC=gcc if using g77
1852    o changes per discussion of AM, JMC, & EH3 today:
1853      - move redundant "grid" variables out of "state" -- in preparation of
1854        creating proper CF-style coordinate variables and in recognition
1855        that any/all grid variables can be easily copied (eg. w/NCO) from
1856        the grid files into any of the other NetCDF files
1857      - *always* output grid variables with MDSIO (this will eventually be
1858        changed)
1859      - output MNC grid file if useMNC is true
1860    o every instance of _END_MASTER() has been found and replaced with
1861      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1862      preprocessors
1863    o re-arrange diagnostics pkg initialisation:
1864     - allow each package to extend the available diagnostics list
1865     - add some checking and fix small problems (multi-threaded, ...)
1866     - new S/R diagnostics_fill (replace fill_diagnostics):
1867       look through the short list of active diag. (instead of the long list)
1868       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1869    
1870    checkpoint57a_post
1871    o this set of changes restores TAMC compatibility
1872      tested for global_ocean.90x40x15 adjoint on trough
1873      (what a pain)
1874    
1875    checkpoint57a_pre
1876    o some modifs in tools/build_options for sunos
1877    o call ctrl_pack for ctrl at end for optimcycle=0
1878    
1879    checkpoint57
1880    o add horizontal bi-harmonic viscosity for vertical velocity
1881      - new parameter viscA4W (defaults to viscA4)
1882      - affects only non-hydrostatic code
1883      - to be done: no-slip lateral boundary conditions
1884    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1885    o implement Implicit Vertical advection for pTracers
1886    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1887      (implemented also for implicit vertical diffusion & advection)
1888    o OBCS: extend application of tracer open boundary conditions
1889      to a strip beyond the boundary of width Olx/Oly
1890    o add call monitor to TAF set of required calls (flow directives)
1891      and include in natl_box_adjoint
1892    o untangle a few ifdefs related to cost, ctrl, autodiff
1893      untangel a few ALLOW_ECCO_OPTIMIZATION
1894    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1895      (theta2, salt2 in ecco_cost_weights)
1896    
1897    checkpoint56c_post
1898    o OBCS as control variables
1899      - update ctrl_ad_diff.list, obcs_ad_diff.list
1900      - remove balance of obcs controls from default
1901      - fix index bug nobcs in ctrl_init
1902      - fix dummy fields filen in ctrl_pack
1903      - add dummy weights for obcs
1904    o lsopt: comment out fort.94 output
1905    o optim:
1906      - remove unnecessary header files
1907      - adjusted namelists
1908      - add xerbla.F to Makefile
1909    o exf:
1910      - multiple modifications of exf_check_range
1911      - unit change in exf_init_runoff from [m/year] to [m/s]
1912    o mdsio:
1913      - i/o-vector change debugLevel from debLevA to debLevB
1914    
1915    checkpoint56b_post
1916    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1917      is called from DO_THE_MODEL_IO
1918      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1919      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1920      - clean up PTRACERS_WRITE_TIMEAVE a little
1921    o add another verification experiment that tests both the cfc-pkg and
1922      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1923      reactive tendencies treated inline with regular timestepping
1924    o testreport previously did a lousy job of comparing small numbers, so
1925      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1926      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1927      testreport.
1928    o ptracers_monitor: bug fix for MPI
1929    
1930    checkpoint56a_post
1931    o GCHEM: finish reorganizating the package
1932      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1933        (introduces another 3D-array for each passive tracer, but only if
1934        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1935        gchemTendency is not needed because the timestep is done separately)
1936      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1937      - GCHEM is now---more or less cleanly---separate from PTRACERS
1938      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1939        so clear to me how that should be done in a general way.
1940    o CFC: improve formatting of output in CFC_ATMOS
1941    o PTRACERS:
1942      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1943        that ALL experiments with ptracers enable can be checked. This makes
1944        GCHEM_MONITOR obsolete.
1945      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1946        monitorFreq
1947      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1948    o add PTRACERS (PTR0[1-5]) to testreport output
1949    o exf_check_range:
1950      * default changed to .TRUE.
1951      * will check values for niter0 if debLevA, every timestep if debLevB
1952      * STOP in exf_check_range if 'out of range'
1953      * range chosen generous to allow for potential extema
1954      TBD: a version with stricter range
1955           permitted range would be runtime parameters
1956    o GMredi:
1957      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1958      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1959      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1960    o GCHEM:
1961      - move call to GCHEM_FORCING_SEP, so that it is now called before
1962        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1963      - introduced a useGCHEM runtime flag and applied it everywhere.
1964      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1965        this flag is now only visible within GCHEM-pkg routines.
1966      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1967        be replaced by a 3D array that is computed before thermodynamics; for
1968        this, the tracer ID iTracer had to be included into the parameter list
1969        of ptracers_forcing
1970      - set up forward_step to call gchem_forcing, that will replace
1971        gchem_forcing_int in ptracers_forcing
1972      - cleaning up
1973    o small cleaning of exch2: remove files that are also in eesupp/src
1974    
1975    checkpoint56
1976    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1977    o mnc: cleanup "full" files--fixes out-of-memory problem
1978    o ECCO-GODAE
1979      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1980      * fully merged and updated from SIO code
1981        windstress sign change affects
1982        - exf_inscal_[u/v]stress
1983        - sign of xx_tau[u/v] adjustments
1984        - signs in cost_scat
1985      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1986      * natl_box_adjoint updated and compressed
1987      * 2-level checkpoint switch added
1988        (tested in EXP. 1 of natl_box_adjoint)
1989      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1990    o SVD
1991      * first complete, non-hacked version for SVD calculations
1992      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1993        performed via direct access files admtlm_vector.it????
1994        (via ctrl_[un]pack)
1995      * optimcycle is used for ARPACK iteration counter
1996        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1997      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1998        and add linear transforms where necessary
1999      * controls are initial/final SST, SSS (can be extended; need to check
2000        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2001    o mdsio: filename info to both stderr, stdout
2002    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2003      from sign change
2004    
2005    checkpoint55j_post
2006    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2007      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2008    o add consistent build directories and .cvsignore files to verification
2009    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2010    o make all subroutines 30 or less characters in length for certain older
2011      compilers to work (a thorough search only turns up two routines in
2012      pkg/ptracers)
2013    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2014      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2015    
2016    checkpoint55i_post
2017    o change arrays for total vertical diffusivity (2.D if explicit,
2018      3.D if implicit) ; each ptracer uses its own background value.
2019    o added mnc/NetCDF output capability to ocn_compon_interf
2020      - added bits to verification/cpl_aim+ocn so that it can run on
2021        ITRDA and other clusters without the mpirun "-wd" option
2022    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2023      configuration
2024    o give MNC the ability to create additional files rather than
2025      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2026      - the default is just less than 2GB which is a practical limit
2027        on many systems
2028    o Compute the non-local term using either KPP vertical diffusivity (=default)
2029       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2030    
2031    checkpoint55h_post
2032    o add verification test "vermix"
2033    o remove all the *_ioinc flags and replace with the single global
2034      outputTypesInclusive flag
2035    o allow to set a vertical profile of vertical diffusivity for T & S
2036    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2037    o useMNC moved from data.mnc to data.pkg
2038    
2039    checkpoint55g_post
2040    o Renaming carbon AD experiments to comply with testreport conventions
2041    o Updating adjoint of Held-Suarez hs94.1x64x5
2042    o Fixing directives for non-ECCO forward_step, after ECCO directives
2043      have been fixed to avoid recomp. of do_oceanic_phys
2044      Works well for global_ocean.90x40x15,
2045      but recomp. issue remains for carbon
2046    o Updating adjoint output for natl_box_adjoint after
2047      pkg/ecco has been modified (see taga c55d_post)
2048    
2049    checkpoint55f_post
2050    o rename to timeave_init_fixed
2051    
2052    checkpoint55e_post
2053    o some delicate re-shuffle of store directives to avoid one
2054      extra call of do_oceanic_physics
2055      affects ecco_the_main_loop.F, do_oceanic_physics.F
2056      checkpoint_lev1_directives.h
2057    o NB: this may break global_ocean adjoint temporarily,
2058      but it is clear how to fix it. Will do later, need this now.
2059    
2060    checkpoint55d_post
2061    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2062    o ecco_cost_weights is modified to 1x1 runs
2063    o modifs to allow observations to be read in as
2064      single file or yearly files
2065    o enable to read exf forcing fields as either
2066      single file or yearly files (flag useExfYearlyFields)
2067    checkpoint55d_pre
2068    
2069    o switch between 2-level and 3-level checkpointing
2070    o add ability of MNC to write local and "partial" (eg. 2D slices where
2071      the full 3D field is never actually stored) arrays to NetCDF files
2072      with the correct (that is, the complete multi-dimensional) set of
2073      array indicies
2074      - used in mom_vecinv() to write the diagFreq output
2075      - tested (demonstrated) in verification/aim.5l_cs
2076    o further mnc-ification
2077      - add verification/lab_sea to the list with mnc setups
2078      - fix undefined mnc v-names in cd_code
2079      - add kpp to mnc output (both snapshot and timeave)
2080    o non-hydrostatic code
2081      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2082        in calc_gw.F
2083      - defaults to viscAh
2084      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2085        friction or Leith) in non-hydrostatic mode, as long as there is
2086        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2087    o pkg/cost
2088      extend simple cost functions to treat time mean quantities
2089      (T,U,V) via cost_accumulate_state from cost_tile
2090    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2091        be 2 times larger than the minimum size the advection scheme requires.
2092        now get a perfect conservation of salt in advect_cs test-exp (updated)
2093    o GGL90 (Gaspar's TKE mixed layer)
2094      - add horizontal diffusion of TKE, requires exchanges in
2095        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2096        default. In OPA there is no horizontal diffusion of TKE but the
2097        mixing coefficients are computed from a horizontal average of TKE of
2098        6 points or so. I think that diffusion has a little more physical
2099        justification.
2100      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2101        was in vain)
2102      - mask tke-variable in ggl90_init
2103    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2104    o fix biharmonic diffusion on CS-grid.
2105    o more obcs stuff
2106      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2107        for reading boundary values. This routine is called from
2108        obcs_prescribe_read
2109      - updated obcs_check
2110      - changed sponge layer relaxation parameter units for days to seconds
2111      - turned off sponge layer by default
2112      - changed argument list of OBCS_CALC to myTime+deltaTclock
2113      - fixed about 35 bugs in obcs_external_fields_load
2114    
2115    checkpoint55c_post
2116    o obcs stuff
2117      - new runtime flags useOBCSprescribe, useOBCSbalance
2118      - re-arranged obcs_calc
2119      - moved exf_getobcs to obcs_prescibe_read
2120        obcs_prescibe_read is called after ORLANSKI stuff
2121        and independent of it (executable can contain all).
2122      - updated obcs_check
2123      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2124        These may be necessary only if tangential velocities are
2125        prescribed at OB, not sure, needs testing.
2126    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2127      which simplifies the calls and passes the ifc check-bounds test
2128    
2129    checkpoint55b_post
2130    o add a 2D scalar, Z location, exchange_2 routine.
2131    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2132      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2133      affects advect_cs results (for the wrong reason): update output.txt
2134    o use a more standard discretization for biharmonic viscosity ;
2135     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2136      affects results of dome set-up: update output.txt
2137    o fix gad_advection.F (CubedSphere part), back to version 1.23
2138    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2139    
2140    checkpoint55a_post
2141    o merged code to
2142      * prescribe/read time-dependent open boundaries
2143        (works in conjunction with exf, cal)
2144      * sponge layer code for open boundaries
2145      * each boundary N/S/E/W now has its own CPP option
2146        (healthy for the adjoint)
2147    
2148    checkpoint55
2149    o up-to-date adjoint of previous breaks
2150      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2151      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2152      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2153      - carbon: * remove tr1-related adjoint verification
2154                * add ptracer as control variable
2155    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2156      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2157    
2158    checkpoint54f_post
2159    o in verification/carbin/ remove experiment related to
2160      ALLOW_PASSIVE_TRACER (array tr1 etc)
2161      code_ad/ input_ad/ results_ad
2162    
2163    o add two new packages
2164      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2165        + subject to optimization (memory)
2166      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2167        + subject to reordering (many GOTOs in the original code)
2168        + so far opps is called for every (i,j) point, and then operates in
2169          the vertical; one may want to reorder the scheme in order operate in
2170          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2171          fields)
2172    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2173      - all verification tests compile and run with linux_ia32_g77
2174      - defaults are compatible with current input files--nothing
2175        should change if you were not previously using MNC
2176      - MNC output has been added in numerous places (eg. timeave)
2177        but there are still a few writes not yet do-able with MNC
2178        (this is in progress)
2179      - flags now allow for either/or/both use of MDSIO and MNC and
2180        documentation will soon follow
2181      - numerous small formatting cleanups for ProTeX
2182    o add version info (via BUILD_INFO.h) to MNC and stdout
2183    
2184    checkpoint54e_post
2185    o add two new packages
2186      - pp81 (Packanowski and Philander, 1981), Richardson number and
2187        stratification dependent mixing
2188      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2189      - these scheme operate in a similar manner as KPP (without ghat, of
2190        course), however there is only one diffusivity that is used for both
2191        temperature and salinity (and passive tracers)ç
2192    o add offline package
2193    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2194      provided by Stephanie Dutkiewicz
2195    o genmake2: add ability to search for C compilers and cleanup test output
2196      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2197    
2198    checkpoint54d_post
2199    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2200    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2201      leading to additional shift by 5 days each year of integration
2202       (i.e. leading to considerable offset over the years)
2203    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2204    o start with no AB and no initial filtering (staggerTimeStep):
2205      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2206    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2207      (external loading & cpl import/export stay in forward_step.F)
2208    o update coupling interface to work with new staggerTimeStep
2209    o change MDSIO ptracers_pickup.
2210    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2211    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2212    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2213    
2214    checkpoint54c_post
2215    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2216      this affects (truncation error) output.txt of test-exp:
2217       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2218    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2219    o change Qnet to always be the net heat flux, (+upward).
2220      affects (truncation error) output of natl_box exp.: updated
2221    o define the max number of passive tracers in PTRACERS_SIZE.h
2222    o start to test mnc routinely in exp0
2223    o add sea-ice loading (sIceLoad) as a new forcing field.
2224    
2225    checkpoint54b_post
2226    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2227       impressive on Altix and Opteron systems)
2228    o diagnostics can now write NetCDF files through the mnc package
2229    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2230    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2231    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2232      affects (truncation error) output of lab_sea & natl_box exp.: updated
2233    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2234    
2235    checkpoint54a_post
2236    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2237    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2238    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2239    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2240      + internal_wave (shift in writing cg2d_ini_res)
2241    checkpoint54a_pre
2242    
2243    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2244      - modified verification/lab_sea and natl_box_adjoint accordingly
2245    
2246    checkpoint54
2247    checkpoint53g_post
2248    o prepare splitting of thermodynamics: store convect.counter in common block
2249    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2250      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2251    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2252    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2253    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2254    o restore adjointability
2255    
2256    checkpoint53f_post
2257    o modifications that affect AIM experiment results (update output.txt):
2258      - no advection of S at top interface Nr (pkg/generic_advdiff)
2259      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2260    o AIM pkg:
2261      - include stability function into surf.Flux derivative relative to Tsurf
2262      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2263    
2264    checkpoint53e_post
2265    o merged cylindrical coord configuration
2266    o added rotating_tank experiment
2267    checkpoint53e_pre
2268    
2269    checkpoint53d_post
2270    o faulks upgraded: re-generate output.txt that have changed:
2271       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2272    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2273    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2274    o added Sadourny discretization of Coriolis
2275      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2276      - re-enabled use of omega3 (useAbsVorticity)
2277    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2278      vector-invariant equations
2279      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2280    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2281      hopefully without new bugs
2282      - still to do: biharmonic friction for non-hydrostatic w
2283    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2284    o regenerated output for global_ocean_ebm (using -ieee)
2285    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2286      of mom_common/
2287      - simple re-arrangement of instructions within computing loop
2288    checkpoint53d_pre
2289    
2290    checkpoint53c_post
2291    o new version of coupler for AIM+thSIce and Ocean models
2292     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2293     - land: change Evaporation of snow
2294     - aim with thSIce: fix bug in snow-precip.
2295    o changes to calc_gw.F
2296     - bug fix for w^2 term near the bottom boundary
2297     - (hopefully) improve the lateral slip boundary condtions for use with
2298        partial/looped cells
2299      - because the bug fix changes two verification experiments anyway (exp5
2300        and plume on slope), change the lateral boundary condition from half slip
2301        to the value of no_slip_sides
2302    o ebm package wasnt quite up to the parallel task. Fixed that.
2303    o Adjoint of EBM package + verification
2304      * TLM OK
2305      * ADM not sufficient accuracy yet (needs further testing)
2306    
2307    checkpoint53b_post
2308    o Commiting new energy balance model to repository
2309      * package is pkg/ebm
2310      * verif. is verification/global_ocean_ebm
2311      * references are in ebm_driver.F
2312    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2313    C        Global thermohaline circulation. Part I:
2314    C        Sensitivity to atmospheric moisture transport.
2315    C        J. Climate 12(1), 71-82
2316    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2317    C        Global thermohaline circulation. Part II:
2318    C        Sensitivity with interactive transport.
2319    C        J. Climate 12(1), 83-91
2320    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2321    C        Destabilization of the thermohaline circulation
2322    C        by atmospheric eddy transports.
2323    C        J. Climate 7(12), 1870-1882
2324    o Will need long integration testing.
2325    checkpoint53b_pre
2326    
2327    o created pkg/mom_common in preparation for variable viscosity code
2328    o renamed and split ini_mnc_io
2329    o pkg/land: only liquid water can diffuse or run-off
2330    o AIM using land: soil wetness availability account for snow
2331    o added printMapIncludesZeros to EEPARMS namelist
2332    
2333    checkpoint53a_post
2334    o restore TAMC compatiility for exf_constants.h
2335      (no usage of _d in .h)
2336    o Additional storing in KPP in an attempt to fix
2337      TAMC problem with adjoint of KPP code.
2338      (no success...)
2339      Identical code works fine with TAF.
2340    o Fixed verification/natl_box_adjoint experiments.
2341      Initial conditions for Experiments 4 and 5 are now
2342      set to "SEAICE_initialHEFF=0", which is more reasonable,
2343      and hence gives results closer to that of Experiment 2.
2344      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2345    
2346    checkpoint53
2347    o stable checkpoint with up to date adjoint
2348      TLM tests only run for 1st grdchk at the moment. Its unclear if
2349      this is a code problem or a problem with resetting code for g_
2350      variables that is being autogenerated wrong.
2351      Otherwise:
2352       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2353       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2354         are both still in chaos following their security messes.
2355    
2356    checkpoint52n_post
2357    o various build (mostly genmake2) changes including:
2358      - ability to build/run more easily within Cygwin and MacOS X
2359      - more complicated Makefiles with a stronger dependence on Gnu Make
2360    o pkg/seaice modifications
2361      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2362        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2363        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2364      - changed proxy for geostrophic velocity and updated
2365        verification/lab_sea/results/* accordingly
2366      - removed ADI dynamic solver from pkg/seaice
2367      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2368        they caused a segmentation fault under certain circumstances
2369      - removed unused field WATR
2370    o bug fix in exf-package:
2371      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2372         now reflect that.
2373    o small fixes in the cal-package:
2374      - set reference date to first of January for the 'model'-calendar
2375      - failing of cal_CheckDate in cal_FullDate now actually results in a
2376        warning
2377    o small modifications in exf-package to increase flexibility:
2378      - change climtempfreeze from a constant to a runtime parameter that
2379        is specified in data.exf_clim (default = -1.9)
2380      - introduce runtime parameter windstressmax (default = 2.0) that is
2381        specified in data.exf
2382    o fix in pkg/thsice:
2383      - update Evap (Tsf changes) to be consistent with Latent heat flux
2384      - maintain snow precipitation unchanged (even if Tsf >=0).
2385     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2386    
2387    checkpoint52m_post
2388    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2389      this does not change any of the results, because myIter=0 in swfrac always
2390      lead to jwtype=2 (the default anyway), but the call makes little sense
2391      as a default
2392    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2393    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2394      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2395    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2396    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2397    o extending useSingleCpuIO option to work with new exch2 I/O format
2398      - old-style, missing-tile I/O is still accessible by defining CPP
2399        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2400    o monitor package can write to NetCDF files and/or STDOUT
2401    o fix re-definition bug in MNC_GRID_INIT_ALL()
2402    o doc/api_reference added
2403      - a framework for building an API Reference Manual using all
2404        the "protex" comments embedded in the code
2405      - see pkg/generic_advdiff, pkg/mnc for examples
2406    o MNC:
2407      - make myThid the last argument for all subroutines
2408      - new default for the grid files: NO halos
2409      - add useMNC and other run-time flags
2410      - separate per-file-group handling of the unlimited dimension
2411      - early initialization of MNC w/ flags read at the eeboot stage
2412        and lookup tables set in initialize_fixed
2413      - write all MNC output to a freshly-created directory
2414    o thermodynamics sea-ice (thsice) is now tested with testreport.
2415    o test exp. advect_cs: use the standard cs32 grid ; update output.
2416    o Added functionality to grdchk:
2417      pick global i,j,k position (or nearest wet) where to perform check.
2418    
2419    checkpoint52l_post
2420    o new land formulation:
2421      a) use ground enthalpy as prognostic variable to ensure exact
2422         energy conservation.
2423      b) account for water temperature and for latent heat of freezing
2424         in all processes (rain, run-off, ground storage)
2425      c) compute surface and ground temperature implicitly.
2426    o aim_v23 modification for new land model:
2427      a) Treat separately land / ocean / sea-ice surface fluxes
2428         to allow implicit computation of land & sea-ice surface temp.
2429      b) add snow precipitation.
2430    checkpoint52l_pre
2431    
2432    o fix problem (when 1 tile is empty) in min/max monitor.
2433    o fix bug in timeAve (u,vZetatave in common block)
2434    o no restoring terms under ice for pkg/seaice
2435    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2436    o bug fix for pkg/seaice pickups
2437    o change MNC call locations and add coordinate attributes
2438    o mask vorticity at the corner ; affects global_ocean.cs output
2439    o fix ini_curvilinear_grid ; test CS experiments with mpi
2440    o aim.5l_cs: modify sea-ice fraction input file ; update output
2441    o exf: Adding simple range check routine for exf fields after read
2442    
2443    checkpoint52k_post
2444    o removed top-level directory "diags"
2445      - we migrated these functions to pkg/timeave a long time ago
2446    o fixed bug introduced in pkg/monitor
2447    o accuracy ctrlprec = 32 insuffient for gradient checks using
2448      averaged fields (I/O via cost_averages)
2449      -> use ctrl.h in active_file*.F to control I/O precision.
2450    o paramter list of CALL ADTHE_MAIN_LOOP
2451    o added initial do_the_model_io to ecco
2452    o set all ...Freq to zero after cost_final
2453      taveFreq, dumpFreq, pChkptFreq
2454    o MAIN and ECCO differentiability restored
2455    
2456    checkpoint52j_post
2457    o fix nchklev in tamc.h for global_ocean...
2458    o Bringing flow and store directives up-to-date
2459    o Really weird thing!
2460      call do_the_model_io from the_main_loop with parameters
2461      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2462      TAF places a faulty re-call of initialise_varia
2463      after cost_final call which should not be there!
2464    checkpoint52j_pre
2465    
2466    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2467      error messages
2468    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2469    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2470      debug output
2471    o modfied mdsio_writefield.F to handle non-global files under exch2
2472    o update AIM Cubed-Sphere exp (aim.5l_cs):
2473      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2474    o update AIM Equatorial Channel exp:
2475      use standard aim_v23 pkg and change the SST fields to be more realistic.
2476    o globalFile now works with exch2
2477    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2478      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2479    o limit timeave output for hi-res integrations
2480    
2481    checkpoint52i_post
2482    o removed CPP_EEOPTIONS.h from verification/*/code
2483    o updated the tiling for global_ocean_pressure
2484    checkpoint52i_pre
2485    
2486    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2487      the old pkg/aim).
2488    
2489    checkpoint52h_pre
2490    o shortened offending lines in exch2_send_rx?.template
2491    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2492    o genmake2: add build & execute test for NetCDF code
2493    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2494      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2495    o added useSingleCPUIO flag to monitor.F and mon_out.F
2496    o added temporary hack for sea-ice dynamics on the cube:
2497      metric terms are ignored and it is assumed that
2498      there is no sea-ice on cube faces 1, 2, 4, and 5.
2499    
2500    checkpoint52f_post
2501    o added exch2 cube routines to pkg/exch2
2502    o modified hs94.cs-32x32x5 to use it
2503    o added new grid files to hs94.cs-32x32x5
2504    checkpoint52f_pre
2505    
2506    checkpoint52e_post
2507    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2508      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2509    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2510      to work with implicit vertical advection and AB ;
2511    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2512    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2513     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2514    checkpoint52e_pre
2515    
2516    o fix bug in impldiff when Nr=1 or Nr=2.
2517    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2518    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2519    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2520      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2521    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2522    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2523    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2524    
2525    checkpoint52d_post
2526    o re-tiled many expts to allow comparison in multi-processor mode
2527      - updated output accordingly
2528      - changed hs94.128x64x5 to use intial T from file rather than use the
2529        random number generator
2530    o add infrastructure in model routines for fizhi and gridalt packages
2531    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2532    o changes to permit hi-res, cubed-sphere, configuration
2533      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2534      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2535      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2536        of surface winds for the cube
2537      (A verification experiment, based on global_ocean.cs32x15, but with
2538       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2539       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2540       complete with example surface forcing files and matlab scripts to look
2541       at the output and compare it with that of global_ocean.cs32x15.)
2542    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2543       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2544       to conform to the common rule.
2545    o check-in the first version of the coupler + interfaces for multi-components
2546       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2547       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2548       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2549       - ocean and atmos. share the same horizontal grid (no interpolation).
2550       - exchanges between component and coupler is done in forward_step
2551    o new verification experiment, cpl_aim+ocn:
2552       coupled ocean - AIM atmosphere on cs32 grid.
2553    
2554    checkpoint52d_pre
2555    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2556    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2557    
2558    checkpoint52c_post
2559    o Fixing OPTIONS files for use of exf:
2560      - ALLOW_ECCO not needed
2561      - ECCO_CPPOPTIONS.h should not be included from
2562        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2563        as has been the case in the past
2564      - All cal/exf related options are currently set in
2565        single header file. Should remain so until we
2566        agree on a consistent new policy.
2567    o Removed all CPP options for cal package.
2568      cal has no more CPP options.
2569    o modified STOREs in GAD_ADVECTION
2570    o corrected key comp. for passkey
2571    
2572    checkpoint52b_post
2573    o new version: "thsice" of thermodynamic sea-ice pkg:
2574     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2575     - modify fluxes but do not change theta directly;
2576     - light cleaning of bulk_force pkg (still needed with thsice).
2577     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2578       + output_thsice.txt to test thsice & bulk_force pkgs.
2579    o put back grid & coriolis monitor output.
2580    checkpoint52b_pre
2581    
2582    o call "do_the_model_io" at the beginning (=> dump initial state)
2583    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2584    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2585      (need info on NUMBER_OF_PTRACERS)
2586    o missing PTRACERS headers in some routines
2587    o default tamc.h in pkg/autodiff supposed to crash
2588      to ensure proper customization
2589    
2590    checkpoint52a_post
2591    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2592      - moved surfaceTendencyTice from pkg/seaice to main code
2593      - subroutine FREEZE_SURFACE now limits only surface temperature
2594        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2595        => new output.txt for global_ocean.cs32x15 & global_with_exf
2596      - keep the old version of FREEZE for backward compatibility;
2597        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2598      - corresponding modifs for TAF directives
2599    o added surface flux output variables to TIMEAVE_STATVARS
2600    o time-averaged output for pkg/ptracers
2601    o fix problem with ECCO-related divided adjoint
2602      snapshot file was missing some ad-variables,
2603      but no warning issued by TAF
2604    
2605    checkpoint52a_pre
2606    o some bug fixes for #undef REAL4_IS_SLOW
2607    
2608    checkpoint52 = ecco_c52_e35
2609    o after testing adjoints of checkpoint51u_post
2610    
2611    checkpoint51u_post
2612    o this is the post-merge tag of the ecco-branch
2613      (needs another clean checkout and re-testing)
2614    o various natl_box_adjoint configs and results
2615      but no input fields
2616    o obcs adjoint not yet merged!
2617    o adding ECCO global 1x1 and 2x2 degree configs
2618    o updated/extended some store directives for seaice
2619    o pkg/ecco now containes ecco-specific part of cost function
2620    o top level routines the_main_loop, forward_step
2621      supersede those in model/src/
2622      previous input data.cost now in data.ecco
2623      (new namelist ecco_cost_nml)
2624    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2625    
2626    checkpoint51t_post
2627    o this is the pre-merge tag of the ecco-branch
2628    
2629    checkpoint51s_post
2630    o cleanup: removed various obsolete #define-s
2631    o pkg/grdchk
2632      - renamed 'ph-grd 3' to 'grad-res'
2633      - merged from ecco-branch
2634        (remaining bug fixes for obcs gradient checks)
2635      - additional high-precision output for testreport
2636        (grep for 'precision_grdchk_result')
2637    
2638    checkpoint51r_post
2639    o cleaned up or removed CPP_OPTIONS.h files
2640    o updated results for some of the tests to reflect the new
2641      optfiles (-ieee: -O0 instead of -O3)
2642    
2643    checkpoint51q_post
2644    o cd_code:
2645      - moved cd_scheme.F -> cd_code_scheme.F
2646      - separate read_checkpoint from cd_code_ini_vars.F
2647      - separated cd_code part from write_checkpoint
2648      - updated AD_SOURCE, generated .flow
2649      - added CD_CODE_VARS.h to the_main_loop
2650      - Moving cd_code specific store dir.s to pkg/cd_code
2651    o ctrl package totally restructured
2652      - pack/unpack now optional and decoupled from
2653        xx_/adxx_ I/O
2654      - ctrl_pack/unpack cleaned
2655        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2656      - confined inclusion of AD_CONFIG.h to where necessary.
2657    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2658    
2659    checkpoint51p_post
2660    o create initial cd_code package
2661      - WARNING: the initialization of fields within packages
2662        is broken because INI_FIELDS (where READ_CHECKPOINT is
2663        called) is called *before* PACKAGES_INIT_VARIABLES.
2664        This seems to be backwards since
2665        1) its important to initially zero the entire field including
2666           the "halo" region
2667        2) zeroing needs to be done *before* reading pickup info
2668           and the pickup call might or might not happen in any
2669           particular run
2670      - this needs an overhaul for R2
2671    o cleanup verification/*/code/GMREDI_OPTIONS.h
2672    o cleanup testreport
2673    
2674    checkpoint51o_post
2675    o bringing AD-related verif's up to date with genmake2
2676      - carbon/
2677      - global_ocean.90x40x15/
2678      - hs.94.1x64x5/
2679      - (front_relax/ )
2680    o (more) consistent directory structure for AD-related verif.'s
2681    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2682    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2683    o bug fix in find_alpha.F for MDJWF:
2684      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2685        change rho -> rho-rhoConst
2686      - replace call find_rho to find_rhonum
2687    o initialisation of rFlx extended to full array (required by TAF)
2688      and shifted to thermodynamics
2689    o removed PTRACERS.h in ptracers routine
2690    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2691    o Correcting initialisations for fVerU, fVerV.
2692    o helping TAF to recognize dependency on kUp for
2693      fVerU, fVerV
2694    o Replacing delZ by delR in pkg/ctrl/
2695    checkpoint51o_pre
2696    
2697    o undid all of cp51 pending some cleanups and discussion
2698    o added the [#include "AD_CONFIG.h"] statement to all files that need
2699       it for adjoint/tl #defines
2700     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2701     o removed tools/genmake since it no longer works
2702    
2703    checkpoint51n_post
2704    o modifications to make FREEZE flux visible to pkg/kpp
2705      - moved surfaceTendencyTice from pkg/seaice to main code
2706      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2707      - subroutine FREEZE now limits only surface temperature
2708        (this means new output.txt for global_ocean.90x40x15,
2709         global_ocean.cs32x15, and global_with_exf)
2710    o added surface flux output variables to TIMEAVE_STATVARS
2711    
2712    checkpoint51n_pre
2713    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2714    o added [#include "AD_CONFIG.h"] to all files that use the following
2715      defines:
2716      - ALLOW_ADJOINT_RUN
2717      - ALLOW_TANGENTLINEAR_RUN
2718      - ALLOW_ECCO_OPTIMIZATION
2719    
2720    checkpoint51m_post
2721    o incorporating changes to get TAMC/TAF working in genmake2
2722      - added new TAMC/TAF targets to the Makefile
2723      - various cleanups related to package handling
2724      - these changes should have no impact on the forward model
2725    
2726    checkpoint51l_post
2727    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2728     - faster algorithm for cal_addtime.F
2729     - higher precision arithmetic, where needed
2730     - pkg/exf *startdate variables changed from calendar date to
2731       model integration time
2732    
2733    checkpoint51l_pre
2734    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2735    o enable to apply restoring on S & T only in a latitude band.
2736    o update output (external_forcing_surf modif. change truncation errors)
2737       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2738    
2739    checkpoint51k_post
2740    o change default to: useNHMTerms=.FALSE.
2741     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2742       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2743     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2744        exp1, ideal_2D_oce
2745     - change data file of oceanic exp (leave the results unchanged for now)
2746       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2747    o set gravitySign automatically according to the vertical coordinate used
2748      (and change sign: back to "logical" value: +1 when R increases downward)
2749    o added an include barrier to the default CPP_OPTIONS.h and
2750      removed the #include "PACKAGES_CONFIG.h" from it
2751    o fix a bug in mom_fluxform (from chk51j_post)
2752    
2753    checkpoint51j_post
2754    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2755    o adjusted some flow directives (dynamics, thermodynamics)
2756    o added cubed-sphere case to test cost function
2757    o heckpoint_lev?_directives.h now include
2758      pkg-specific directives, whenever those are enabled.
2759    o Moving pkg-specific flow directives to corresponding pkg
2760      Moving pkg-specific differentiation list to corresponding pkg
2761      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2762      ---> conventions are
2763           - pkg_ad.flow
2764           - pkg_ad_diff.list
2765           - pkg_ad_check_lev?_dir.h
2766    
2767    checkpoint51i_post
2768    o merge of the branch-genmake2
2769      - knowingly breaks the older genmake
2770      - automatic generation of all ALLOW_${PKG_NAME} defines
2771      - new testreport supersedes older testscript
2772    o large number of package inclusion and header cleanups
2773    checkpoint51i_pre
2774    
2775    o new output for adjoin of global ocean vector invariant
2776    o fix for checkpoint of thermodynamic seaice and bulk_force
2777    o Steph gchem various cleanups
2778    
2779    checkpoint 51h_pre
2780    o fixed some single quotes
2781    o modify gchem pkg to be more versatile
2782    o modifications to clean up dic pkg
2783    o add pkg/cfc
2784    
2785    checkpoint51g_post
2786    o provide links for ARPACK and ADM*TLM
2787    o start removing verification/vero/
2788    o update AD-related stuff
2789      (in particular some IF-statements in model/src/ routines)
2790    o adding to verification/global_ocean.90x40x15/ adjoint of
2791      vector invariant setup
2792    
2793    checkpoint51f_post
2794    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2795    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2796      of tracer Green's fucntions for ocean inversion project.
2797    
2798    checkpoint51f_pre
2799    o Added on-the-fly spatial interpolation capability
2800        "USE_EXF_INTERPOLATION" to pkg/exf.
2801      - This is a temporary Cartesian-grid hack until
2802        the super-duper ESMF coupler becomes available.
2803      - See verification/global_with_exf/README for usage example.
2804      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2805        flags and modified pkg/seaice accordingly.
2806    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2807        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2808        non-local transport term.
2809    
2810    checkpoint51e_post
2811    o pkg/mom_vecinv:
2812      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2813      - add time-ave diagnostic of vorticity advection.
2814    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2815    o atmospheric geopotential: - include water vapor effect;
2816                                - use p^kappa in p* scaling.
2817    o land pkg: read initial state from files.
2818    o AIM : add stratospheric drag in the upper level
2819    
2820    checkpoint51d_post
2821    o change function ILNBLNK (=> last non-blank char.) to return zero
2822      (instead of the string length) when the string. char is empty
2823    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2824    o modif's to restore TAMC compatibility
2825      - avoid "_d" constructs in PARAMETER declarations
2826      - avoid interrupting lines by comment lines
2827    o Use cluster local disks for purely local I/O
2828      vs. globally visible disks needed for ctrl stuff
2829      (merged from ecco-branch)
2830      - new active_file_loc... and mdsio_..._loc routines
2831      - affected packages: autodiff, ctrl, grdchk, mdsio
2832    
2833    checkpoint51c_post
2834    o introducing integer flag debugLevel
2835      - debLevZero: suppress all output
2836      - debLevA: standard
2837      - debLevB: equivalent to current debugMode=.TRUE.
2838    o introducing pathname variable mdsioLocalDir for mdsio
2839      that can be specified at runtime
2840      (relevant for cluster I/O to local disk)
2841    `
2842    >>>checkpoint51b_post
2843    adjoint of ptracers
2844    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2845    o extended state in checkpoint_lev?, etc.
2846    o alternative ctrl/cost with tr1 or ptracer
2847    o new comlev1_bibj_ptracers
2848    o new ptracers.flow
2849    o made ptracers_forcing same as external_forcing_s
2850    o added verification for adjoint with ptracers
2851      - adm. grdchk fail so far
2852      - tlm. grdchk OK
2853      - checked tapelev/comlev recomputations: OK
2854    <<<checkpoint51b_pre
2855    
2856    checkpoint51a_post
2857    o added code for biogeochemistry package
2858      - new pkgs: dic, gchem
2859      - new subroutine in ptracers
2860    o modify code for biogeo packages
2861      - in model/src and pkg/ptracers
2862    
2863    checkpoint51
2864    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2865      - autodiff, ctrl, exf, grdchk, seaice
2866      kept separate packages
2867      - cost, ecco, obcs
2868    o updating verification/internal_wave, verification/lab_sea
2869      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2870    
2871    checkpoint50i_post
2872    o Preparing next differentiable checkpoint and sync
2873      of MAIN vs. ecco-branch
2874      - 1st step: this one is differentiable
2875      - 2nd step: next(! not this) checkpoint will have updated packages
2876                  from ecco-branch)
2877    
2878    checkpoint50h_post
2879    o new package "land": provide surface BC for AIM.
2880    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2881    o AIM: use true log-P extrapolation for near surface temp (= as in
2882        F.Molteni paper) ; update aim.5l_cs output.
2883    o New variable in PARM03 for more flexible pickups
2884    o somewhat cleaned package initialisation sequence for
2885      ctrl/ cost/ ecco/ in packages_... routines
2886    
2887    checkpoint50g_post
2888    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2889      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2890      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2891        made the default because of faster convergence than ADI
2892    
2893    checkpoint50f_post
2894    o exf totally restructured
2895      - replaced all exf_set_ routines by one generic exf_set_gen.F
2896        and made sure it's still differentiable
2897      - split exf_getffields.F into new exf_bulkformulae.F
2898      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2899      - updated adjoint/makefile and relevant verif. accordingly
2900    
2901    checkpoint50f_pre
2902     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2903          + change Evap over land. (update aim.5l_cs output)
2904     o added missing .cvsignores and made uniform across expts
2905     o changed configuration of tidal_basin_2d expt
2906     o added pkg/debug functions for tracing code in fatal crashes
2907     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2908     o new fn in pkg/monitor to stop model if solution grows too big
2909     o removed lots of single quotes from comments
2910    
2911    checkpoint50e_post
2912    o make KPP work with PTRACERS
2913     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2914       nearly a copy of kpp_transport_s
2915     - there is no analogue to SurfaceTendencyS, so I have to use
2916       gPtr(of the surface layer) instead
2917    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2918    checkpoint50e_pre
2919    
2920    checkpoint50d_post
2921    o change kpp output from multiple-record state files to single-record state
2922      files analogous to write_state.F
2923    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2924      analogous to the cg2d-related output.
2925    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2926      so that writing to internal file fn (with length 512) fails.
2927    checkpoint50d_pre
2928    
2929    checkpoint50c_post
2930    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2931    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2932    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2933    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2934    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2935    
2936    checkpoint50c_pre
2937    Merging from release1_p13:
2938    o bug fix for pkg/seaice dynamic solver
2939    o Added SEAICE_initialHEFF to pkg/seaice
2940    
2941    checkpoint50b_post
2942    o store u*,v* in gU,V instead of in guNm1,gvNm1
2943    o in order to put the momForcing out of the Adams-Bashforth:
2944      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2945      to timestep.F
2946    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2947    o re-generate output for highly sensitive test-exp:
2948       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2949    
2950    checkpoint50b_pre
2951    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2952    o corrected CPP option mismatch in exf_Bulk... functions for case
2953      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2954    
2955    checkpoint50a_post
2956    o Bug fix for merging between c50 and KPP.
2957      ikey was passed from thermodynamics to kpp_calc via
2958      common block rather than being recomputed in kpp_calc,
2959      in contradiction with new key itdkey.
2960      New key ikppkey created, and tamc.h headers updated.
2961    
2962    checkpoint50
2963    - 2nd step of merge with ecco-branch:
2964      merge changes in ecco-branch back into main trunk
2965    - bug fix in find_alpha
2966    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2967    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2968    - merged some sliced AD support routines
2969    
2970    checkpoint49
2971    merged from ecco-branch:
2972    o exf:
2973      - Enable initialisation of forcing fields to constant
2974        (runtime) values.
2975      - in exf_getffields.F
2976        Reduce i-/j-loop to interior domain, discarding overlaps.
2977        That also fixes wrong TAF-key computations for key_1, key_2
2978        with bulf formulae.
2979      - exf_init.F modify #ifdef for exf_init_evap
2980      - exf_getffieldrec.F, ctrl_getrec.F
2981        The following INT-usages are not safe:
2982          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2983          fldcount = int(fldsecs/fldperiod) + 1
2984        and were modified.
2985    o autodiff: checkpoint_lev...
2986      - updated storing for bulk formulae (some arrays were missing)
2987      - added state for seaice package
2988      - synchronized with main branch
2989    o DIVA:
2990      Modif.s in
2991      - the_main_loop.F
2992      - the_model_main.F
2993      and added cost_final_restore.F cost_final_store.F
2994      o With these changes, it is possible to fully separate
2995        the first forward run to compute the cost function (mdthe_main_loop)
2996        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2997        into separate model executions.
2998        This enables better tuning of DIVA to given queue sizes.
2999      o Loss of cost function value in consecutive DIVA runs is
3000        fixed by storing to 'costfinal' file.
3001      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
3002        beginning/end of adjoint integration is accounted for.
3003      The current changes apply to TAF-1.4.26.
3004      TAF has one remaining bug, requiring one manual change
3005      (see MITgcm manual).
3006    o cal: synchronized between MAIN and ecco-branch
3007    
3008    checkpoint48i_post
3009    o Changes to restore differentiability of code w.r.t. previous tag
3010      (mostly adding new routines to make list and replacing
3011      pressure by totPhiHyd).
3012    o Updated and merged grdchk package
3013      - has both ADM and TLM checks
3014      - works for single- and multi-proc.
3015      - output cleaned
3016      - worked successfully for parallel DIVA
3017    o genmake:
3018      - Adding -platform=SP4
3019      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
3020    o Modif. for DIVA:
3021      ctrl_unpack should not be called in intermediate DIVA interval.
3022      (similar thing would apply for active files such as
3023      tbar, sbar, psbar, which should not be reinitialised;
3024      only relevant for ecco-branch)
3025    
3026    checkpoint48h_post
3027    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
3028    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
3029    o Added SEAICE_initialHEFF to pkg/seaice
3030    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
3031    
3032    checkpoint48g_post
3033    --- EOS:
3034    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
3035      store total Potential in totPhyHyd for diagnostics & EOS.
3036    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
3037    --- Pressure/geopotential gradient:
3038    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
3039    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
3040      ( changes results of global_ocean_pressure )
3041    o NLFS + z-coord.: add eta*Rho' contribution.
3042    o accurate phiHyd when using interface-W at the middle between 2 centers
3043     ( changes results of ideal_2D_oce )
3044    o includes r* 2nd term in potential gradient.
3045    
3046    checkpoint48f_post
3047    Merging from release1_p12:
3048    o Modifications for using pkg/exf with pkg/seaice
3049      - improved description of the various forcing configurations
3050      - added basic radiation bulk formulae to pkg/exf
3051      - units/sign fix for evap computation in exf_getffields.F
3052      - updated verification/global_with_exf/results/output.txt
3053    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
3054      (SBO) core products, including oceanic mass, center-of-mass,
3055      angular, and bottom pressure (see pkg/sbo/README.sbo).
3056    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
3057      to avoid negative values in shallow regions.
3058      - updated verification/natl_box/results/output.txt
3059      - updated verification/lab_sea/results/output.txt
3060    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
3061    o Added useSingleCpuIO option (see PARAMS.h).
3062    o Updated useSingleCpuIO option in mdsio_writefield.F to
3063      work with multi-field files, e.g., for single-file pickup.
3064    o pkg/seaice:
3065      - bug fix in growth.F: QNET for no shortwave case
3066      - added HeffFile for specifying initial sea-ice thickness
3067      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
3068    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
3069      kpp_transport_t.F, forward_step.F, and the_main_loop.F
3070    o pkg/seaice:
3071      - adjoint-friendly modifications
3072      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
3073    
3074    checkpoint48e_post
3075    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
3076    o dynamics: change definition of computational domain & adapt mom_fluxform
3077      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
3078    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
3079        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
3080        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
3081        global_ocean.90x40x15 global_with_exf global_ocean_pressure
3082        inverted_barometer solid-body.cs-32x32x1
3083      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
3084    
3085    checkpoint48d_post
3086    o in preparation for r*:
3087     a) use pre-computed gradient of hydrostatic potential:
3088        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
3089     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
3090        => affects results of glob_oce_pressure (different truncation error)  
3091      update output.txt of ideal_2D_oce & global_ocean_pressure
3092    
3093    checkpoint48d_pre
3094    o in preparation for r*:
3095      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
3096      pass the 2 comp. of the grad. as arguments to momentum S/R.
3097      but for the moment, only used if it does not change the results.
3098    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
3099    
3100    checkpoint48c_post
3101    Modifications in treatment of initial flux forcing controls
3102    to avoid extra storing of flux fields.
3103    
3104    checkpoint48c_pre
3105    o Added tidal_basin_2d experiment (currently 1D!)
3106    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
3107    
3108    checkpoint48b_post
3109    o r* coordinate added in #ifdef NONLIN_FRSURF block.
3110     (modification to pressure gradient not yet implemented)
3111    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
3112      (for U & V) that are used for vertical advection of momentum.
3113    
3114    checkpoint48a_post
3115    o In preparation for r*, use temp. array to compute vertical transport
3116       in flux-form momentum pkg. => change results of few test-exp.
3117      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
3118                        lab_sea, natl_box & plume_on_slope
3119    
3120    checkpoint48
3121    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
3122    
3123    checkpoint47j_post
3124    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
3125    o moved adexch from forward_step to addummy_in_stepping
3126    o added exch in ctrl_map_...
3127    o aveFreq.=0. at end of cost_final to avoid overwrite in
3128      reverse checkpointing loop
3129    o Yet more changes in gmredi:
3130      * adgmredi_calc_tensor
3131        avoiding all recomputation of gmredi_slope_limit
3132      * adgmredi_x/y/rtransport
3133        added flag for excessive storing to avoid recomp. of
3134        u/v/rtans, dTdx/y/z
3135        -> this is not really necessary and very memory-consuming
3136      * adgmredi_slope_psi:
3137        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
3138      * gmredi_slope_limit
3139        re-activated full calculation of taperfct for case 'ac02'
3140    o updating verification/ adjoints of carbon, global_ocean.90x40x15
3141    
3142    checkpoint47i_post
3143    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
3144    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
3145      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
3146    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
3147    o gmredi: fix few bugs.
3148    
3149    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
3150    This will be a good checkpoint to plug into the ecco-branch.
3151    o few modif.'s to get latest version adjointed
3152      (mainly kick out code in ini_linear_phisurf)
3153    o modif's to run adjoint with exactConserv
3154    o case GM_BOLUS_ADVEC should be cleaned
3155      S/R gmredi_slope_psi should be cleaned
3156    o verification/carbon now has exactConserv=.TRUE.
3157    
3158    checkpoint47g_post
3159    o time-average AIM output: becomes independent from statvars time-average
3160      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
3161    o After TAF bug fix:
3162      Tested adjoint of gmredi package.
3163      Tests were done with checkpoint47 rather than with latest
3164      checkpoint47f_post since the latter is broken for the adjoint
3165      verification/carbon/ contains both ADM and TLM gradient checks.
3166    Here they are, before they get changed/lost/stolen.
3167    Mostly modif.'s to fix numerical sensitivities.
3168    Gradient checks OK for
3169    - GM_taper_scheme:
3170      * clipping
3171      * ac02
3172      * linear
3173      * glw91
3174      * dm95
3175      * ldd97
3176    - GMREDI_OPTIONS:
3177      * GM_VISBECK_VARIABLE_K
3178      * GM_NON_UNITY_DIAGONAL
3179      * GM_EXTRA_DIAGONAL
3180      * GM_BOLUS_ADVEC
3181    in conjunction with data.gmredi parameters to be checked in
3182    in a few minutes under verification/carbon/code/
3183    
3184    checkpoint47f_post
3185    Merging from release1_p10:
3186    o modifications for using pkg/exf with pkg/seaice
3187      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
3188        and SEAICE_EXTERNAL_FLUXES
3189      - pkg/exf CPP options EXF_READ_EVAP and
3190        EXF_NO_BULK_COMPUTATIONS
3191      - usage examples are Experiments 8 and 9 in
3192        verification/lab_sea/README
3193      - verification/lab_sea default experiment now uses
3194        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
3195    
3196    checkpoint47e_post
3197    o created a tag prior to creating a branch
3198    
3199    checkpoint47d_post
3200    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
3201      at the bottom boundary had an erroneous half slip boundary condition
3202    o added bottom drag and no slip boundary condition capabilities to
3203      oceanic pressure coordinates code
3204    o added new verification experiment global_ocean_pressure, this experiment is
3205      also described in the tutorial section of the manual
3206    checkpoint47d_pre
3207    
3208    checkpoint47c_post
3209    o Added a verification experiment for a global cubed-sphere ocean run
3210      -  verification/global_ocean.cubed32x32x30
3211      -  uses pkg/therm_seaice and pkg/bulk_forcing
3212    
3213    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
3214    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
3215      when using P-coordinate; only implemented for atmospheric config.
3216    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
3217      NOTES: requires option NONLIN_FRSURF to be "#define".
3218    o update advect_xz/results/output.txt (left from checkpoint44g_post)
3219    
3220    checkpoint47b_post
3221    Merging from release1_p9:
3222    o pkg/seaice
3223      - removed GOTO's and added taf directives
3224      - double precision constants to reduce the g77 (Linux)
3225        to F77 (SGI) differences reported in release1_p8
3226    o tools/genmake
3227      - added SGI options
3228    o verification/testscript
3229      - updated to that of checkpoint47a_post
3230    o verification/global_ocean.90x40x15/input/eedata
3231      - modified for SGI f77 compatibility
3232    o verification/lab_sea
3233      - added description of sea-ice model
3234      - added missing matlab routines
3235      - added test of thermodynamics parallelization
3236    
3237    checkpoint47a_post
3238    o new pkg: aim_v23
3239     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
3240       for now, keep the same surface forcing as before.
3241     - Part-Cell implemented into AIM; check that Heat & Water are conserved
3242     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
3243     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
3244    o add diagnostic of surface correction term in monitor output
3245    
3246    o bulk_force and therm_seaice
3247    - Two packages:  bulk_force (Bulk forcing)
3248      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
3249    - Earlier integration from Stephaine Dutkiewicz
3250      and Patrick Heimbach.
3251    - Two ifdef statements for compile time,
3252       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
3253    
3254    checkpoint47
3255    differentiable version of checkpoint46n_post
3256    o bug fix in quasihydrostaticterms
3257    o * "clean" adjoint code (in terms of extensive recomputations)
3258        can now be obtained for all GMREDI options (i.e. for
3259        - GM_VISBECK_VARIABLE_K
3260        - GM_NON_UNITY_DIAGONAL
3261        - GM_EXTRA_DIAGONAL
3262        - GM_BOLUS_ADVEC )
3263      * However, wrong gradient check problem remains unsolved.
3264      * New CPP options have been introduced for different
3265        tapering schemes
3266    o external_fields_load now part of differentiation list
3267    o pressure needs multiple storing;
3268      would be nice to have store_pressure at beginning or
3269      end of forward_step, e.g. by having phiHyd global (5-dim.)
3270      (NB: pressure is needed for certain cases in find_rho,
3271      which is also invoked through convective_adjustment).
3272    o recomputations in find_rho for cases
3273     'JMD95'/'UNESCO' or 'MDJWF' are OK.
3274    o #define ATMOSPHERIC_LOADING should be differentiable
3275    o ini_forcing shifted to begining of initialise_varia
3276    o Incorporating QNVS line search routines into MITgcm
3277      (this is separate code, and therefore not under pkg)
3278      lsopt/, optim/
3279    o Updated verification/carbon/
3280      - #define GM_VISBECK_VARIABLE_K
3281      - GM_taper_scheme    = 'ldd97'    
3282    
3283    checkpoint46n_post
3284    Merging from release1_p8:
3285    o verification/natl_box:
3286      updating new external_fields_load routine
3287    o New package: pkg/seaice
3288      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
3289      The sea-ice code is based on Hibler (1979-1980).
3290      Two sea-ice dynamic solvers, ADI and LSR, are included.
3291      In addition to computing prognostic sea-ice variables and diagnosing
3292      the forcing/external data fields that drive the ocean model,
3293      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
3294      The implied surface heat flux is then stored in variable
3295      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
3296      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
3297      non-local transport term.  Because this call precedes model
3298      thermodynamics, temperature under sea-ice may not be "exactly" at
3299      the freezing point by the time theta is dumped or time-averaged.
3300      N.B.: fairly large differences in accuracy occur across
3301            different platforms/compilers; comparison between
3302            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
3303            generated output gives:
3304       T           S           U           V
3305      C D M    c        m  s        m  s        m  s        m  s
3306      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
3307      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
3308      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
3309    
3310      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
3311    o GAD:
3312      - generated new common blocks to account for call of
3313        same gad routines with differing traceridentities
3314        (needed to modify tracerIdentity indices in GAD.h)
3315      - generated separate common blocks for case useCubedSphereExchange
3316        (Department of Futurology)
3317      - parameter lists to gmredi_?transport: added tracerIdentity
3318      - added new key indices to tamc.h
3319    o external_fields_load:
3320      - added this routine to TAF list
3321      - needed to make some common blocks global and additional storing
3322        along the same lines as exf package (checkpoint_lev?_directives.h)
3323    o exf:
3324      updated external forcing package
3325      - bug fixes carried over from ecco-branch
3326        (missing OBCS_OPTIONS.h in two routines)
3327      - enable easy to use "no forcing".
3328      - added exf I/O for atmospheric loading
3329      - added exf I/O for runoff data
3330      - transfered scaling between exf <-> MITgcm to exf namelist
3331    o Adding new verification experiment global_with_exf.
3332      This verification experiment is almost identical to the
3333      global_ocean.90x40x15 experiment, except that it uses
3334      the exf (and cal) package instead of the
3335      external_fields_load routine (cf README file).
3336    
3337    checkpoint46m_post
3338    o modified testscript to return -- when there are no lines of "%MON" output
3339    o added new flag "quasiHydrostatic" for QH mode
3340      and new routine quasihydrostaticterms()
3341    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
3342      New routine: mom_u_coriolis_nh()
3343    o fixed sign of non-hydrostatic metric terms in u and v equations.
3344      Depend on correct sign of gravitySign.
3345    o added work.pc* to .cvsignore in aim directories using ifc
3346    o introduced flag for controllin non-hydrostatic metric terms
3347    o removed gravitySign from PARM04
3348    o switched to g77/ifc from pgf77 in aim experiments
3349    
3350    checkpoint46l_post
3351    o made convective adjustment work with pressure coordinates:
3352     - changed the direction of k-loop in convective_adjustment.F for the
3353       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
3354     - adjusted the reference pressure k-index in convective_adjustment.F
3355     - adjusted the convection condition in convect.F (in analogy to
3356       calc_ivdc.F)
3357     - convective_adjustment no longer computes anything on the halos
3358     - removed the warnings about negative salinity from find_rho.F and
3359       find_alpha.F; instead the new routine look_for_neg_salinity, called
3360       at the beginning of find_rho, find_alpha, and find_beta, does a
3361       check of the entire slice, if CPP-option
3362       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
3363    checkpoint46l_pre
3364    
3365    checkpoint46k_post
3366    o fixed the verification/global_ocean.90x40x15 experiment:
3367     - new bathymetry (the world according to A., JMC, and M.)
3368     - new initial fields and forcing fields (*.bin files)
3369     - new POLY3.COEFFS (for the next release one should switch to a full
3370       equation of state: JMD95P or MDJWF)
3371     - fixed several errors and redundancies in the data file
3372     - experiment uses looped cells
3373     - added matlab directory with diagnostic scripts for plotting of output
3374    
3375    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
3376     - read AIM physics parameters from a file (data.aimphys)
3377     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
3378    
3379    checkpoint46j_post
3380    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
3381    o move wVel computation at the end of the time step, in S/R integr_continuity
3382    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
3383    o update timeave pkg for wVel diagnostic.
3384    checkpoint46j_pre
3385    
3386    checkpoint46i_post
3387    o Clean up AIM package (and keep the results unchanged):
3388      include CPP_OPTION and use IMPLICT NONE in all routines ;
3389      declare all the variables _RL ; use _d 0 for all numerical constants.
3390      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
3391    
3392    checkpoint46h_post
3393    o cleaned up the use of rhoNil and rhoConst.
3394      - rhoNil should only appear in the LINEAR equation of state, everywhere
3395        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
3396        and the dynamical equations are all divided by rhoConst
3397    o introduced new parameter rhoConstFresh, a reference density of fresh
3398      water, to remove the fresh water flux's dependence on rhoNil. The default
3399      value is 999.8 kg/m^3
3400    o cleanup up external_forcing.F and external_forcing_surf.F
3401      - can now be used by both OCEANIC and OCEANICP
3402    checkpoint46h_pre
3403    
3404     Added code to convert surface volume flux (fresh water) into
3405     a mass flux when using P coordinates in the ocean (OCEANICP).
3406     Note: It assumes you have set rho0=rhoConst=density of fresh water.
3407    
3408    checkpoint46g_post
3409    o Include a new diagnostic variable phiHydLow for the ocean model
3410      - in z-coordinates, it is the bottom pressure anomaly
3411      - in p-coordinates, it is the sea surface elevation
3412      - in both cases, these variable have global drift, reflecting the mass
3413        drift in z-coordinates and the volume drift in p-coordinates
3414      - included time averaging for phiHydLow, be aware of the drift!
3415    o depth-dependent computation of Bo_surf for pressure coordinates
3416      in the ocean (buoyancyRelation='OCEANICP')
3417      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
3418        Theta, Salinity, and Pressure in the parameter list. This routine is
3419        presently contained in find_rho.F. This routine does not give the
3420        correct density for 'POLY3', which would be a z-dependent reference
3421        density.
3422    o cleaned up find_rho
3423      - removed obsolete 'eqn' from the parameter list.
3424    o added two new verification experiments: gop and goz
3425      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
3426    checkpoint46g_pre
3427    
3428    checkpoint46f_post
3429    o Enable tangent linear (forward mode) gradient checks:
3430      - extended active file handling to g_... files
3431      - added TANGENT_SIMULATION to theSimulationMode
3432      - extended grdchk package accordingly
3433    o added tangent linear setup in verification/carbon/code_ftl
3434    o added adjoint setup in verification/front_relax/code_ad
3435    
3436    checkpoint46e_post
3437    o Added new equation of state -> MDJWF
3438      - EOS of McDougall et al., 2002, JAOT, submitted
3439      - caveat: the equation of state is only valid for a smaller (more
3440        realistic?) range of values than JMD95P/Z and UNESCO
3441      - added masks to the calculation of pressure in store_pressure
3442      - added more check values for density in check_eos (ini_eos.F), some of
3443        the old check values are out of the range of the MDJWF-eos, so don't
3444        expect perfect matches for those
3445    checkpoint46e_pre
3446    
3447    checkpoint46d_post
3448    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
3449      'OCEANICP', also initialised field pressure correctly in ini_eos in the
3450      case of pressure coordinates. eosType='JMD95Z' in
3451      combination with buoyancyRelation='OCEANICP' now causes an error.
3452    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3453      in find_alpha/beta.
3454    checkpoint46d_pre
3455    
3456    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3457      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
3458    
3459    checkpoint46c_post
3460    o Changes necessary for ocean in p-coordinates
3461     -  Added new buoyancy relation = 'OCEANICP'
3462     -  Added new parameters = gravitySign (this used to be contained inside
3463        the factor dRdZ which I added when we first switched to R coordinates).
3464     X GM/Redi is not compatible (yet)
3465     X bottom drag and no-slip need to be debugged.
3466    checkpoint46c_pre
3467    
3468    checkpoint46b_post
3469    o Added new equation of state -> JMD95Z and JMD95P
3470      - EOS of Jackett and McDougall, 1995, JAOT
3471      - moved all EOS parameters into EOS.h
3472      - new routines ini_eos.F, store_pressure.F
3473    o Added UNESCO EOS, but not recommended because it requires
3474      in-situ temperature (see JMD95)
3475    o Modified formatting for knudsen2.f in utils/knudsen2 and added
3476      unesco.f to be used with POLY3
3477    checkpoint46b_pre
3478    
3479    checkpoint46a_post
3480    o Added (atmospheric) pressure loading
3481      - new field in FFIELDS.h, etc...
3482      - new cpp flag ATMOSPHERIC_LOADING
3483    o Changed hFacC to _hFacC in calc_phi_hyd.F
3484    o Added SHORTWAVE_HEATING to some files for consistency
3485    checkpoint46a_pre
3486    
3487    checkpoint46
3488    further merges from release1_p5
3489    o new ctrl package
3490      - adopted from ECCO environment to enable optimization
3491      - added Eliassen Palm fluxes to controls
3492    o added Eliassen Palm flux controls to gradient check package
3493    o cost package
3494      - Compatible with new ctrl package
3495      - added Eliassen Palm cost hooks
3496      - modif's of existing cost functions
3497    o Adjoint-related bug fixes in kpp:
3498      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
3499      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
3500    o autodiff package
3501      - flow directives:
3502        + new for S/R do_the_model_io
3503        + enhanced for S/R checkpoint
3504        + new gmredi.flow
3505      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
3506        disable adcommon.h/g_common.h by default.
3507      - fixed problem for adjoint of global_max
3508    o modified verification/carbon/
3509    o New setup for adjoint of global_ocean
3510    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
3511    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
3512    o incorporated hooks for sponge layer code (external_forcing.F)
3513    
3514    checkpoint45d_post
3515    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
3516  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
3517    (affects plume_on_slope "cg2d" output)    (affects plume_on_slope "cg2d" output)
3518    o add new parameter deltaTfreesurf for free-surface time stepping
3519    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
3520  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
3521  o change phiMin in exp1 (to agree with documentation)  o change phiMin in exp1 (to agree with documentation)
3522  o add new flags:  o add new flags:

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