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revision 1.107 by cheisey, Mon Dec 2 13:28:30 2002 UTC revision 1.1020 by jmc, Sat Sep 6 17:55:27 2008 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
8      and rename:
9      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
10      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
11    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
12    
13    checkpoint61c
14    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
15      to add mass source/sink of fluid in the interior (3-D generalisation
16      of oceanic real-fresh water flux).
17    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
18    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
19    o new pkg: down_slope
20      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
21      - presently, modify T & S inland (dwnslp_calc_rho.F).
22        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
23      - implementation for ocean in P-coords not tested.
24      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
25    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
26      (to facilitate conversion of oceanic pkg to p-coordinate).
27    o change FIND_RHO to FIND_RHO_2D :
28      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
29    o new pkg: cheapaml
30    
31    checkpoint61b
32    o exch2:
33      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
34      - no longer depend on the order sequence (N,S,E,W).
35      - 3rd exchange no longer needed (tested with 24 tiles).
36      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
37      - exch_UV_A-grid readily available (but not yet tested).
38      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
39      (both are no longer needed) in exch_uv: no effect in forward run; but
40       get truncation error differences with adjoint exch.
41    o exch2:
42     - change index-bounds storage (moved from target to local tile,
43       more intuitive this way) ; rename/remove some variables.
44     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
45    
46    checkpoint61a
47    o exch2/matlab-topology-generator:
48      fix bug in index bounds for N-S internal exchange (hard to tell if this
49      had any effect on the solution).
50    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
51      is exceeded
52    o testreport: modify syntax of awk, so that it works also with
53      awk, and not only with nawk and gawk
54    
55    checkpoint61
56    o autodiff
57      Change default for TAF usage by removing argument '-nonew_arg'
58      This changes TAF subroutine argument list (ordering of active var.)
59      Omission of this flag leads to incompatibility w.r.t. TAMC
60      To restore TAMC-compatibility, need following modifs:
61      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
62      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
63      Tested TAF version is 1.9.22
64      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
65    
66    checkpoint60
67    --->>> This is the last checkpoint for which generating the adjoint
68    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
69    --->>> by default.
70    --->>> Future checkpoints will ommit this flag by default.
71    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
72    o pkg/grdchk: Add gradient check to etan0 perturbations.
73    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
74    o pkg/autodiff: more flexibility in zeroadj.
75      model/src: modifying do_oceanic_phys.F accordingly.
76    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
77    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
78      special setup of gmredi for which the adjoint is stable
79      enough for parameter optimization.
80    o bridging the gap between eddy stress and GM.
81      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
82          along with a change in CPP option (now ALLOW_EDDYPSI).
83      -> when using GM w/ GM_AdvForm:
84          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
85          is applied either in the tracer Eq. or in momentum Eq.
86          depending on data.gmredi (intro. GM_InMomAsStress).
87      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
88      The key modifications are in model/src/taueddy_external_forcing.F
89      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
90    
91    checkpoint59r
92    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
93      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
94      fix option to read coriolis(@ cell-corner) from files with CS-grid.
95    o pkg/mnc: add some attributes to standard 1D-coordinate variables
96    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
97      mass points, when using mnc for output
98      - add runtime parameter (missing_value, missing_value_int) to override
99        default (which is the value of getcon('UNDEF'))
100    o pkg/mnc: prepare mnc for the actual use of missing values with the
101      diagnostics package: small fix in mnc_cw_readwrite.template and more
102      initialisation of never used fields
103      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
104      versions
105    o pkg/thsice/thsice_ini_vars.F added default initial values so that
106      thermodynamics sea ice solver does not blow up when some initial fields
107      are missing.
108    o move from external_forcing_surf.F to ini_forcing.F
109      the p-coord. hack consisting in using pLoad to set phi0surf ;
110      update output of tutorial_global_oce_in_p (affected @ truncation level).
111    o Freshen up a bit hs94.1x64x5, notably:
112      remove rotationPeriod and tRef=5*0. (adjoint only), and add
113      exactConserv=.TRUE.
114    o pkg/generic_advdiff:
115      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
116      applies to files where Temperature & Salinity 2nd Order moments are used.
117    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
118      this uses a dynamically allocated internal state data structure
119      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
120      and requires a fortran 90 compiler
121    
122    checkpoint59q
123    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
124       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
125    o Refresh tutorial_global_oce_biogeo, notably:
126      - change bathymetry (put back seamounts in ACC, use hFacs)
127      - change EOS (POLY3 --> JMD95Z)
128      - use Bryan-Lewis vertical diffusivity
129      - use multidimensional advection
130      - remove old virtual virtual in dic pkg, now done through ptracer pkg
131      - change a couple of parameters in dic pkg
132    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
133    o pkg/obcs: change default to OBCSfixTopo = .true.,
134      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
135      - replace "debugMode" with "debugLevel .GE. debLevB"
136    o implementation of TAF directives for gchem,cfc,dic
137    o remove "exp5" (replaced by tutorial_deep_convection).
138    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
139      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
140      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
141      --> changes results in exp4, seaice_obcs
142    o tutorial_deep_convection :
143      update the set-up and increase resolution and domain size ; start
144      from pseudo initial conditions = output at t=120mn in order to see
145      something happening when running testreport.
146    o pkg/seaice: add os7mp as an advection scheme
147                  add check for advection schemes
148                  add a flag for restoring T and S underneath sea ice
149    o pkg/my82: add netcdf-support and diagnostics
150    o thsice pkg:
151      - Now hsMax limits snow height by turning it into ice following
152        flooding scheme (and now conserving energy)
153      - Slight rewriting of the formula in thsice_calc_thick.F
154      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
155      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
156    
157    checkpoint59p
158    o gchem / dic / cfc :
159      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
160      - add new parameter files: "data.dic" & "data.cfc" ;
161      - various re-arrangement in initialisation & header file ;
162      - fix tutorial_global_oce_biogeo for multi-threaded test.
163    o pkg/dic: test for "pickup_dic" file when restarting ;
164      if no pickup-file, can restart with a re-initialised pH (same as it did
165      before) providing pickupStrictlyMatch is set to False.
166    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
167      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
168    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
169      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
170    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
171     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
172       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
173    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
174       scheme to use for vorticty-term ;
175     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
176       (with default selectVortScheme, return to original discretisation)
177     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
178    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
179    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
180      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
181      also fix diagnostics VISCAHW & VISCA4W.
182    
183    checkpoint59o
184    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
185    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
186      move a few statemens out the main loop into separate loops
187    o pkg/shelfice:
188      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
189        (kg/m^2/s), does not break tests, because in verification/isomip,
190        rhoConstFresh=rhoConst (by accident)
191      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
192      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
193        new file model/src/seawater.F, so that they are available for all pkgs.
194      - convert potential temperature into in-situ temperature. This changes the
195        isomip tests => update tests
196    o add a flag writePickupAtEnd (default=true) to be able to suppress
197      writing a pickup at the last timestep
198    o tools/mpack-1.6 :
199      - disable automake (not working) and autoconf (not needed).
200      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
201        also cleaner with much less compilation warnings.
202    o pkg/profiles:
203      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
204      (for "less than 32 characters name" compiler requirement)
205    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
206      conditions that have a different sampling frequency than S/T/U/V obcs
207    o pkg/diagnostics (stats-diags):
208      - fix global Min/Max in case 1 processor get only empty tiles
209    o genmake2: replace (4 times)
210         make genmake_tc_1.o >> genmake_warnings 2>&1
211      with
212         COMM="$CC $CFLAGS -c genmake_tc_1.c"
213         echo $COMM >> genmake_warnings
214         $COMM >> genmake_warnings 2>&1
215      to make genmake2 always see the value of CC as specified in the optfile.
216    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
217      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
218      - modify verification advect_cs test to test SOM-advection on CS-grid.
219    o pkg/ctrl:
220      - Rewrite of ctrl_map_ini_ecco.F,
221        introducing a generic routine (ctrl_map_ini_gen.F).
222      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
223    
224    checkpoint59n
225    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
226      number in dedicate array "hdiag":
227      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
228        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
229      - many small changes (integer format) for large number of diagnostics
230      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
231        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
232    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
233      usingSphericalGrid, this allows to define the rotated grid coordinates
234      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
235      geographical coordinates according to the inverse of the rotation defined
236      by the Euler angles, so that Coriolis parameter and online-interpolation by
237      exf works with the geographical coordinates on XC/YC/XG/YG.
238      Naturally, this feature does not work with all packages, so some
239      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
240      profiles), because there the coordinates are assumed to be regular
241      spherical grid coordinates.
242    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
243      - introduce isopycnal diffusion coefficient control.
244    o tools/adjoint_options:
245      - additional control vector components.
246    o pkg/mnc: have mnc create marginally meaning full coordinate variables
247      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
248    o pkg/mypackage:
249      - add example of read/write pickup for state-var ;
250      - add entry points to the main code for state-vars diags & write-pickup.
251    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
252      transitions for useExfYearlyFields
253      - add new subroutine that determines the file to read from for
254        use*YearlyFields = .TRUE. and .FALSE.
255      - add a verification experiment to global_with_exf that tests
256        useExfYearlyFields with USE_EXF_INTERPOLATION defined
257    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
258      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
259      subroutines (which could be generated from a template, because they are
260      almost identical), for now they are included in obcs_prescribe_read.F for
261      simplicity
262    o pkg/exf:
263      - add a little more diagnostic to exf_interp_read (in analogy to
264        mds_read_field, can be turned off with debugLevel < debugLevA=1)
265      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
266        ugly but fast by unrolling short inner loops, inserting a unroll=8
267        directive in routine lagran, and splitting a loop and making do while the
268        outermost loop (the latter requires the intoduction of index arrays)
269    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
270    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
271      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
272    o verification/seaice_obcs: updated for restart test and latest options
273    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
274      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
275      for now this is only available for the C-grid code and also within
276      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
277    
278    checkpoint59m
279    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
280      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
281    o gad_som : fix flux output (& diagnostics) to have same units as other  
282      advection scheme fluxes (was previously multiplied by deltaT).  
283    o added verification/seaice_obcs both to test seaice open boundaries
284      and to provide an example matlab scrpt for generating them
285    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
286    o pkg/salt_plume: clean up salt_plume_frac.F to
287      remove redundancy in PlumeMethod 1 and 4
288    o pkg/kpp: added saltplume diagnostics
289    o pkg/obcs and pkg/seaice:
290      - do not set uice and vice to zero when OB*icefile are unspecified
291      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
292      - moved seaice tracer obcs after call to seaice_growth
293    o pkg/salt_plume: added various options for salt plume depth
294      criterion and for vertical distribution of the salt
295    
296    checkpoint59l
297    o pkg/ptracers: new version of ptracers pickup:
298      read meta file and write only fields which are needed to restart.
299      ( same logic as main pickup file ; also using pickupStrictlyMatch )
300    o pkg/seaice:
301      - add timescale for melting due to warm mixed layer as a means of
302        setting SEAICE_availHeatFrac more conveniently
303      - add a CPP-flag/runtime parameter check for flooding algorithm
304      - reformulated availHeat in seaice_growth.F to be independent of AREA
305    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
306      unit changes
307    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
308    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
309      SX vector computer.
310    o pkg/seaice:
311      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
312        seaice forcing fields can now be read only through pkg/exf
313      - removed some unused halos
314    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
315    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
316      or U/VICE from U/VWIND before computing U/VSTRESS
317    
318    checkpoint59k
319    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
320      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
321    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
322      all experiments pass when compile with un-initialised var. checking option.
323    o added pkg/salt_plume
324    o script to test restart (for now, in MITgcm_contrib/jmc_script)
325    o pkg/seaice: new read/write pickup version.
326      read meta file and write only fields which are needed to restart.
327      ( same logic as main pickup file ; also using pickupStrictlyMatch )
328    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
329    o lab_sea.hb87: modify the domain & update output.hb87.txt :
330      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
331      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
332      process. Fixed here by closing the domain at the Northern boundary.
333    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
334    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
335      a set of consecutive levels in/from a 3-D array.
336    o pkg/ptracers:
337      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
338      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
339    
340    checkpoint59j
341    o in pkgs: dic, obcs, offline, rbcs:
342      standard way to compute coeff. for time interpolation between 2 time reccords
343      which retains full precision (& make results less dependent on compiler).
344      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
345    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
346      packages instead of reading ice cover and wind speed separately
347    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
348     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
349      to allow to compile customized code before the update)
350    o cleaning-up:
351      - fix CPP instruction syntax in pkg/obcs
352      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
353        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
354      - fix some threads issue in IO parts.
355    o pkg/dic:
356      - add tons of "_d 0" (--> much better testreports !)
357       and then update outputs of tutorial_global_oce_biogeo
358    o pkg/mom_fluxform:
359      add a special version of momentum advection intended to conserve momentum
360      next to a bathymetry step or a coastline edge. (default = off = #undef)
361    o new read/write pickup version:
362      - for now, only implemented for main (mdsio) pickup file.
363      - write out only what is needed to restart; merge pickup_nh , pickup_ph
364        and main pickup together.
365      - read meta file; read only what is needed to restart; stop if a field
366        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
367        if it make sense (even if the restart is not perfect).
368      - if no meta file, assume that pickup to read corresponds exactly to
369        a pickup that would currently be written.
370      - read pickup written in the old format (until checkpoint59i) if it
371        recognizes an old meta file (no field-list).
372      - add a meta file in exp. which starts from a pickup: 2 cases:
373        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
374         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
375        b) a meta file describing the content of the associated pickup file
376         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
377    o pkg/mdsio & pkg/rw:
378      - new routine to read a meta file ; new set of routine to read
379        Multiple-fields file (with meta file).
380    o added open boundary conditions capability for seaice
381        HSNOW, HSALT, UICE, and VICE
382    
383    checkpoint59i
384    o adjoint:
385      * fix multiDimAdvection adjoint
386        (partial recomputation problem by TAF for fVerT(:,:,kDown)
387        and comlev1 size definition (maxpass vs. max. number of tracers)
388      * verification/global_ocean.90x45x15 adjoint now tests
389        NLFS and multiDimAdvection using DST3 (=30)
390      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
391    o pkg/kpp: add "_d 0" to real constant (if missing);
392      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
393      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
394    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
395      for internal parameters related to restart process (formerly from PARAMS.h)
396      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
397    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
398      as argument. (only atm2d & obcs write_pickup have not yet been updated)
399    o pkg/monitor:
400      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
401      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
402      - account for deep Atmosphere factor and density factor (anelastic)
403    o added open boundary conditions capability for seaice HEFF and AREA
404    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
405      thermodynamics
406      - requires a little reorganization, which affects the testreport results
407        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
408        so that now the conservative form is tested
409      - add a few comments
410    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
411    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
412    o add new diagnostics to seaice: advective, diffusive fluxes (only for
413      multidim-advection, for scheme 2 they are not filled) and transports,
414      thermodynamic growth rates
415    o change units of EmPmR (inside the code, + within coupling interface)
416      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
417      Affects results @ truncation level (cg2d match) and update output of
418       experiments: lab_sea(6), global_ocean.90x40x15(10),
419      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
420      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
421      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
422      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
423    
424    checkpoint59h
425    o pkg/exf:
426      - improve vectorization by moving if-statement out of loops in
427        exf_mapfields, exf_radiation
428      - exf_bulkformulae.F: introduce 2D fields and vectorize code
429    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
430    o testreport:
431      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
432        monitor & update offline_exf_seaice exp. output.
433      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
434    o pkg/seaice:
435      - bug fix in the evp solver: boundary conditions were affected be
436        masking of zMax/zMin (changes results)
437      - minor bug fix in boundary conditions in seaice_calc_strainrates
438        (changes results for no_slip)
439      - seaice_lsr.F: make interpolation of eta dependent on boundaries
440      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
441      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
442        stress formulation and no-slip boundary conditions
443    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
444      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
445    o pkg/seaice: a first HSALT time stepping equation has been checked in
446    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
447      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
448      without requiring DO-IF statements
449    o pkg/thsice:
450      use continuous power-law function for partition of energy between lateral
451      melting/freezing and thinning/thickening ; old code using step function
452      still available with #undef THSICE_FRACEN_POWERLAW
453      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
454    o testreport: change AD testing : check against results/output_adm.txt
455      using same scripts as for forward test.
456    
457    checkpoint59g
458    o adjoint testing: in preparation for changing testreport:
459      - output format: cost and grad written on separated lines
460      - ad output results in directory "results" (instead of "results_ad")
461    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
462    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
463    o pkg/ecco: allow user defined cost function contributions
464    o testreport:
465      Allow to choose (per experiment) the list of tested output variables
466       and the main variable (used to issue a pass/FAIL ) ;
467      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
468      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
469      Also modify printing of summary:
470       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
471       b) echo the list of tested variables in the individual summary.txt of
472          each experiment.
473    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
474      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
475      (but still depend on the tile decompostion of the domain).
476    o pkg/seaice: change a discretization detail to make the B-grid code
477      "more symmetric". This change is likely to remove all "ridges/leads" that
478      where quasi-aligned with the grid in B-grid solutions. It may also be
479      the solution to the stress coupling issues with the B-grid.
480    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
481      remove .cvsignore from input dir. (since testreport no longer run here).
482    o pkg/thsice:
483     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
484     - fix reshaping of sea-ice just after advection:
485       melt all the ice only if ice-volume is too small.
486     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
487       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
488     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
489    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
490      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
491    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
492      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
493      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
494      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
495      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
496      -> update output.txt
497    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
498     this affects truncation error: -> update output.txt of exp:
499      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
500      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
501    
502    checkpoint59f
503    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
504    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
505      a bounded range (in forward mode)
506    o pkg/ecco, ctrl, autodiff and mom_common:
507     internal parameter controls, completements of implementations
508    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
509    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
510      (not seem any difference in testing results).
511    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
512       at face corners.
513    o pkg/generic_advdiff:
514     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
515      loop range indices for computing vertical advection tendency
516      and do the calculation in the interior only (no overlap) ;
517      for now, only implemented for SOM advection (to save CPU time).
518     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
519    o exch2 adjoint
520      First set of changes:
521      - add exch2 hand-written adjoint templates
522      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
523        This will require cleanup in pkg/autodiff/*.F
524        (changed routines currently kept separate in verif. code/)
525      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
526        that used to hide exch2 or cubed-sphere specific code
527        (commented via 'cph-exch2')
528    o pkg/seaice
529      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
530    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
531       output of global_ocean.cs32x15.thsice .
532    
533    checkpoint59e
534    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
535      for B-grid vector (not yet tested) and C-grid vector (<- only used
536      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
537    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
538      (#ifdef ALLOW_SALT_PLUME)
539    o gather_2d/scatter_2d: removed halo regions
540    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
541      scheme and the corresponding test case (under front_relax dir). For now,
542      only available with Skew-flux form and not yet tested in realistic set-up.
543      adjoint: store directives updated, but gradient checks deteriorated,
544      so maybe GM/Redi adjoint is now broken.
545    o seaice adjoint
546      * add AREA, HEFF, HSNOW as control variable
547        (should not change lab_sea results)
548      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
549    o pkg/seaice:
550      * added computation of saltFlux in seaice_growth;
551        For time being, sea ice salinity is assumed constant
552        contribution of snow flooding to freshening of sea ice is neglected.
553        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
554        defaults to 0.0 in order to maintain backward compatibility.
555        Typical values for SEAICE_salinity are 4 to 10 g/kg.
556      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
557      * added SEAICE_availHeatFrac, which specifies fraction of surface level
558        heat content used to melt or grow ice
559      * commented out cap of HICE: it helps keep ice thinner
560      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
561      * applied OBCS T/S mask to HEFFM sea ice mask
562    
563    checkpoint59d
564    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
565     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
566     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
567    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
568     and change default value of parameter "GM_Small_Number";
569     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
570       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
571       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
572    o pkg/ecco: cost function when applying pkg/smooth to controls
573    o pkg/ctrl: add forcingPrecond run time parameter
574    o pkg/seaice:
575     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
576     - fix bug in metric terms of u-equation in LSR solver (implicit part),
577       changes verification/lab_sea
578     - rearrange implicit part of u-equation in LSR solver to make it easier to
579       read, understand, and debug. This causes changes at the truncation level.
580     - fix (serious) bug in the boundary conditions (sign error in the implicit
581       part) of the LSR solver. Changes all LSR results.
582     - fixed problem with HSNOW initialization to avoid thick snow when AREA
583       is initilized with small values - does not change lab_sea results.
584     - added HsnowFile initialization capability
585    o pkg/smooth: addition to model/src and pkg/ctrl so allow
586     initialization of pkg/smooth and application to control vector
587    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
588    o dependencies: pkg/profiles requires pkg/cal
589    o pkg/profiles:
590     - added option ALLOW_PROFILES_GENERICGRID
591         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
592         that interpolation information (grid points and coefficients) is provided
593         within the netcdf input files.
594         -> sample matlab scripts can be found in MITgcm_contrib/gael
595         that allow you to prepare netcdf input files.
596     - also modified: cleaner include statements, cleaner error print statements,
597       cleaner stops when error, and more tests of the netcdf input files consistency.
598    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
599    o pkg/seaice:
600     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
601       requires a new routine: seaice_diagnostics_fill.F
602     - make sure that seaice does not move if not forced (pressure replacement
603       method, Hibler and Ip, 1995), changes results
604     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
605     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
606       It is turned off by default (=-1.), because it changes the results.
607     - make it possible to read AREA from a file, too.
608    
609    checkpoint59c
610    o add S/R and diagnostics for oceanic mixed-layer depth
611    o move GMRedi call after all vertical mixing schemes (including KPP)
612    o pkg/thsice:
613     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
614      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
615    o pkg/obcs:
616     - bug fix for balance code
617    o pkg/seaice:
618      - allow values of SEAICE_elasticParm > 1
619      - add new parameter SEAICE_evpTauRelax as an alternative
620        to SEAICE_elasticParm
621      - make lsr boundary conditions free slip (by default), changes result
622      - add code for no slip boundary conditions for lsr
623      - set minimum of zeta to zero (and not 4e8) (changes results)
624      - add a cap on AREA after advecting AREA if seaice_growth is not called
625    o change calculation of Visbeck K:
626      - no longer depend on tapering scheme; instead, compute slope (limited
627        by GM_maxSlope). this is equivalent to what was comuted before with
628        clipping or linear tappering.
629      - fix vertical averaging (wrong by 1/2 level)
630      - leave the old version (but will not be maintained) within
631        #ifdef OLD_VISBECK_CALC / #endif
632      - update output of exp. ideal_2D_oce
633    o change error catch in calc_r_star to improve vectorization
634    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
635      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
636    o adjoint:
637      Re-organized adjoint checkpointing according to Matt Mazloff
638      (but with modifs/completions/cleanups)
639      Storing is now bundled into large arrays to optimized I/O
640      (and second step in cleanup of the_main_loop)
641    
642    checkpoint59b
643    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
644      - export/import (between ocean & coupler) fields needed for ocean DIC.
645    o pkg/seaice:
646      - get rid of three more exchanges seaice_calc_viscosities (required
647        different loop boundaries in seaice_lsr and seaice_ocean_stress)
648      - bug fix in seaice_ocean_stress (update of lab_sea required)
649      - reduce loop boundaries to necessary minimum also in seaice_evp
650      - go back to the old way of computing deltaC/Z as the adjoint likes that
651        better
652    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
653      passive tracer to an Age Tracer) + update output.txt
654    o pkg/exf:
655      - implement A-grid / C-grid selection for wind-stress input files.
656      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
657      for now, in exf_bulk_largeyeager04.F only :
658      - change implementation for case where windspeed + 2. components wind-stress
659        are read-in. AND use rhoConstFresh to convert evap.
660    o pkg/seaice:
661      - use correct EXCH_UV for wind-forcing (on A-grid).
662      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
663        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
664    o pkg/exf:
665      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
666      EXF_INTERPOLATION:
667      - merge global_with_exf/code version of exf_interp_read.F
668        to the main code ;
669      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
670        reading the file ; Important: This options needs to be defined to recover
671        previous code.
672        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
673      - no longer loose real*8 precision along the way when using exf_iprec=64.
674    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
675      - change discretisation of evp-solver in order to avoid another exchange
676        (changes lab_sea) and clean up a little
677      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
678        help the adjoint (this also changes the results slightly)
679      - add a few "_d 0" where they had been missing in seaice_evp.F
680      - cleaning up: remove unused seaice_calc_rhs.F
681    o pkg/exf: some cleaning-up:
682      - change various "constants" into runtime parameters
683      - cleaned-up Large&Yeager04 routine which should eventually
684        replace exf_bulkformulae.F (changed names of S/R and CPP)
685        and merged various ALLOW_ATM_WIND options
686     only used with thsice pkg (in thsice_get_exf.F):
687      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
688        which are used when useStabilityFct_overIce=TRUE (= the default)
689      - change default values of ice & snow emissivity and scale downward LW
690        by ice & snow emissivity.
691    o pkg/thsice:
692     fix few little problems, in thsice_calc_thickn.F:
693      - growth vertically (and not laterally) if iceFrac == iceMaskMax
694      - melt only laterally if hIce < hThinIce (as the comments say)
695      and in thsice_extend.F:
696      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
697      - start to form ice as soon as the minimum ice-volume is reachable.
698     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
699      and cpl_aim+ocn
700    o pkg/kpp
701     - move computation of surface related input fields to KPP into a new
702       subroutine kpp_forcing_surf.F
703     - remove wrong (within bi,bj loops) EXCH calls.
704     - little cleaning (add argument myThid in last position, cvs header ...)
705     - for now, fix conservation problem by exchanging KPPviscAz (may not
706       be the best fix)
707    o pkg/seaice
708     - check for inconsistent evp parameter/cpp-flag combination
709     - remove leftover errIO flat for obsolete name list error handling
710    o OpenAD
711     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
712    
713    checkpoint59a
714    o pkg/seaice: some parameter clarifications and a little bit of clean up
715    o pkg/thsice: rename run-time parameters:
716       himin       -> hIceMin
717       himin0      -> hThinIce
718       hihig       -> hThickIce
719       i0          -> i0swFrac
720       transCoef   -> bMeltCoef
721       frac_energy -> fracMelting
722      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
723       with default values (for now) that do not change the results.
724      remove old version of thsice vars advection in pkg/seaice.
725    o in FFIELDS.h:
726      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
727      - make pLoad & sIceLoad always available (but still only used if
728         ATMOSPHERIC_LOADING is #define).
729    o pkg/kpp: replaced _KPP_RL with _RL
730    o bug fixes for vertical diffusivity computations when both KPP and
731        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
732        are no longer updating the vertical diffusivity array
733        (passed as argument) but are (re-) setting those arrays.
734    o pkg/seaice: fix bug in evp solver, while doing that
735      - change (improve?) discretization of stress computations for both
736        cgrid-lsr and evp solver
737      - add a new routine to compute strain rates
738      - the above changes lab_sea results
739      - add no slip conditions for evp solver (off by default), lsr-version
740        may follow
741      - fix exchange for shear at Z-points (does not change lab_sea)
742      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
743        (to force the user to pick a time step since there is not "safe" way
744        of choosing it)
745      - add principal stress diagnostics
746      - rearrange fields for evp a little to avoid having to call a: too many
747        exchanges and b: exchanges for stress trensor components which we do
748        not have.
749      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
750        of evp, complete rewrite for lsr case (latter is does not yet work
751        in all cases)
752    o pkg/kpp: add code to have mixing in shelf ice caverns
753      - add myThid to all kpp routines (long overdue)
754    
755    checkpoint59
756    o pkg/exf:
757      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
758        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
759      - move exf header files from lower_case.h to UPPER_CASE.h ;
760        add missing cvs Header & Name
761      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
762      - add namelist param. selectStressGridPosition, exf_monFreq
763      - retire many _CLIM routines, and remove data.exf_clim
764        + params moved to data.exf
765        + climsst, climsss now handled by exf_set_gen, i.e.
766          climss?period=0 refers to constant field,
767          climss?period=-12 to monthly forcing
768      - split up namelists in data.exf
769    o pkg/seaice:
770      - remove seaice_exch and seaice_exch_uv
771      - remove superfluous exchange of theta
772      - add myThid to seaice_budget_ocean/ice
773      - add new interface for atmospheric wind forcing (C-grid only)
774        + new routine
775        + two new field (taux, tauy for stress over ice)
776        + removed one global field (DAIRN) for C-grid case only
777    o pkg/thsise
778      - 2nd set of modifs for thsice adjoint in conjunction with exf
779    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
780    
781    checkpoint58y_post
782    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
783      vertical diffusivity, similar to that in MOM4; turned on using
784      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
785      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
786    o Added capability for 3D specification of background vertical diffusion
787      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
788      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
789      "data" file that contains the 3D vertical diffusivity coefficients.
790    o ice dynamics (pkg/seaice) with thsice thermodynamics:
791      - add code within pkg thsice to advect & diffuse sea-ice fields
792      similar to (and will replace) what has been added in  seaice_advdiff.F,
793      but: - conserving Mass, Heat & Salt.
794           - better when using non-linear advection scheme (not yet fully tested)
795           - can also be used in atmospheric set-up (for now, only the diffusion).
796    
797    checkpoint58x_post
798    o IO option for global-file compact format:
799      - add options when generating topology (utils/exch2/matlab-topology-generator)
800      - add I/O capability (pkg/mdsio).
801      - adapt utils/matlab/rdmds.m to read this format.
802      for now long-line format not yet supported by pkg/mdsio (& exch2).
803    o shelfice: add a few diagnostics
804    
805    checkpoint58w_post
806    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
807      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
808      (and replace horiVertRatio in NH code).
809      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
810                         and tutorial_plume_on_slope (sensitive to truncation)
811    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
812      directly to drive seaice model (C-grid only)
813    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
814     - reintroduce computation of wind from stress,
815     - compute tau (in exf_bulkformulae.F) from windstress averaged to
816       mass points to avoid tau = 0
817     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
818    o rdmnc.m: make it work with "global" files created with gluemnc
819    o rdmnc.m : some improvements in dealing with singleton dimension
820      (tested on all testreport mnc output files).
821    o genmake2: disable pkg/profiles if netcdf test fails.
822    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
823    o move call to cal_readparms up to make calendar parameters/variable available
824      to all packages
825    
826    checkpoint58v_post
827    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
828      useDynP_inEos_Zc tested.
829    o pkg/exf: changes to properly interpolate/mask/scale initial fields
830    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
831      and portions thereof.  See read_cs.txt for description and examples.
832    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
833      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
834      following the great-circle arc between those 2 points.
835    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
836      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
837    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
838     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
839     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
840     - still needs work (not working with some options ; efficiency to improve)
841       and serious testing.
842     - use this scheme for temperature & salinity in 2 advection test exp.:
843       advect_xy & advect_xz, respectively.
844    
845    checkpoint58u_post
846    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
847    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
848    o testreport: add option "-skipdir" to skip some test.
849    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
850      momentum calculation.
851    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
852    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
853      remove checkpoint.F and the_correction_step.F (no longer used);
854      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
855    o add option (linFSConserveTr) to correct for tracer source/sink due to
856      Linear Free surface
857    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
858    o pkg/thsice: fix reading mnc-pickups
859    
860    checkpoint58t_post
861    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
862    o pkg/mdsio:
863     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
864       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
865       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
866     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
867     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
868       either MDS_READ_FIELD or MDS_WRITE_FIELD )
869     - new S/R (to replace MDSWRITEMETA), which allows to write more
870       informations (variable names, time ...) to meta files.
871     - modify rdmds.m to give back the meta file content.
872    o pkg/diagnostics: change vertical interpolation to be safer, and more
873       flexible (define p-levels to interpolate to in data.diagnostics);
874      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
875       diagnostic pointer.
876    o pkg/seaice: more cleaning up of seaice_growth, added many comments
877    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
878    o fix multi-category seaice:
879     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
880       SEAICE_MULTICATEGORY
881     - fix short wave heat flux
882    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
883       and allow to use EVP solver. Change forward lab_sea: test both EVP
884       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
885    o Initial check-in of lab_sea adjoint
886      (very similar to natl_box_adjoint/code_seaice)
887      * used C-grid and EVP solver
888      * used KPP, GM/Redi
889      * uses inAdExact=.TRUE.
890      * gradient checks fail for both ADM and TLM
891        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
892        f.d. gradients actually seem more problematic than ADM, TLM gradients;
893        issue is related to forward mismatch between g77 an ifort
894    o pkg/seaice: overhaul of thermodynamics
895     - growth.F and groatb.F are replaced by new routine seaice_growth.F
896     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
897     - move a few global fields out of SEAICE.h into seaice_growth.F and
898       make them 2D (FICE/QNETO/ ...)
899     - remove FO (it is the same as QNETO)
900     - introduce a few local fields to avoid modifying external fields such
901       as atemp, etc.
902    
903    checkpoint58s_post
904    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
905      changed exf_set_gen.F so that
906        genperiod=0 means input file is one time-constant field and
907        genperiod=-12 means input file contains 12 monthly means
908    o CG2D: use pre-computed solver main-diagonal (stored in common block);
909      this affects truncation error ; generate new output file for exp. which
910      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
911        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
912        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
913        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
914        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
915        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
916    o start implementation of deep-atmosphere and anelastic formulation
917    o verification: remove 2nd copy of input files and use script "prepare_run"
918      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
919    o mom_common/vecinv/fluxform: fix a few initialisation isssues
920    o profiles: fix for multithreaded case
921    
922    o diagnostics: rename few diags:
923      s/'PRESSURE'/'RCENTER '/g
924      s/'TICE    '/'oceFreez'/g
925      s/'TAUX    '/'oceTAUX '/g
926      s/'TAUY    '/'oceTAUY '/g
927      s/'SWFLUX  '/'oceQsw  '/g
928      s/DIFx/DFxE/g
929      s/DIFy/DFyE/g
930      and add few ocean-forcing diagnostics:
931      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
932    o modifications to pkg/seaice/growth.F and budget.F, which change results of
933      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
934      as actual snow thickness.  It now refers everywhere to effective snow
935      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
936    
937    checkpoint58r_post
938    o modifications to pkg/seaice/growth.F, which change results of
939      lab_sea experiment: fixes pertain to melting snow over open water, to
940      masking EVAP under sea ice, and to using the correct AREA variable for
941      computations of EVAP, PRECIP, HSNOW, and GHEFF
942    o add ability to read bathy, salt, and theta using MNC (off by def)
943    o add flooding algorithm and advection of HSNOW for pkg/seaice;
944      both are turned off by default and do no change any results
945    o seaice advection with pkg/thsice: a step toward the use of non-linear
946      advection scheme, but #ifdef or commented out for now (requires more EXCH).
947    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
948      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
949      in natl_box (affects results @ truncation level: update output.txt)
950    o multi-threading and IO:
951      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
952      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
953        (needed to work with SingleCpuIO): tested in all verif. exp.
954    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
955      affects the results (but none of the verification test uses this scheme).
956    o Adding some pkg/diagnostics capability to pkg/seaice
957      (will certainly be subject to changes)
958    o ctrl: adding new control variables:
959      lwflux, lwdown, evap, snowprecip, apressure, runoff
960    
961    checkpoint58q_post
962    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
963      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
964      high_res_cube configuration by 4% on Columbia.
965    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
966      add (in global_with_exf/code) a version of EXF_INTERP_READ without
967      dynamical allocation (seems to work in multi-threaded).
968    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
969      single CPU io) so that TAF does not have to see EESUPPORT.h
970    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
971    
972    checkpoint58p_post
973    o obcs: stop if obcs is used with useCDscheme = .true.
974    o shelfice:
975     - fix a sign error so that no slip at shelfice interface works
976     - remove stop for combination non-hydrostatic code and shelfice. That does
977       not mean, that the results are correct, but at least they are numerically
978       stable
979    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
980    o added adjoint exch routined for all exch*3d* routines
981      and updated flow directives
982    
983    checkpoint58o_post
984    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
985      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
986    o change controling S/R for writing pickup file (new S/R do_write_pickup)
987      and clean-up reading/writing of pickup files.
988    o fix local version of read/write pickup (NH part) in rotating_tank/code
989    o simplify EXCH interface:
990     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
991     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
992    o added the regrid package
993    o shelfice:
994     - add a simple boundary layer scheme to reduce noise
995     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
996    
997    checkpoint58n_post
998    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
999       local variable (not in common block).
1000    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1001      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1002      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1003        to work with SingleCpuIO.
1004    o add "_d 0" to real constant of pkg/cfc subroutines ;
1005       update exp. cfc_exemple & tutorial_cfc_offline output files.
1006    o multi-threading and IO:
1007      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1008        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1009      - barrier before and after reading.
1010      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1011      - avoid using MDS_WRITELOCAL for LAND pkg output.
1012      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1013        common-block variables ; Allows multi-threading with master-thread IO.
1014    o change default MAX_NO_THREADS from 32 to 4 ;
1015      and stop cleanly when MAX_NO_THREADS is too small.
1016    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1017    
1018    checkpoint58m_post
1019    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1020       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1021    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1022       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1023       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1024    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1025        add MITgcm_tutorials (= code + all the tutorials)
1026    o ecco, option to compute cost for total ssh (mean+anom)
1027    o consistent with addition of ptracer and ssh in pkg/profiles
1028    o profiles: adding ptracer and ssh
1029    o testreport: change multi-test output-file name
1030      (from output.txt.{name} to output.{name}.txt)
1031    o profiles: now ok for mutli-tiles case
1032    o seaice: add 4 parameters for different advection schemes for area,
1033      (effective) seaice thickness, enthalphy, and snow height. Their default
1034      is the standard parameter SEAICEadvScheme
1035    o calc_gw:
1036     - add cosFacU in zonal viscous flux (harmonic.visc.).
1037     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1038       of tutorial_plume_on_slope.
1039    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1040    o calc_gw: true flux-form, account for horizontal grid spacing.
1041      update rotating_tank results, but not plume_on_slope (affected at
1042      truncation level, 11 digits).
1043    
1044    checkpoint58l_post
1045    o calc_gw:
1046     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1047     - remove side-drag for now (need to fix it); update plume_on_slope results.
1048     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1049    o commit code to make SST/SSS weights spatially variable
1050      (based on either variable in-situ or variable initial T/S weights)
1051    o pkg/ecco:
1052      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1053        now based on horizontally varying weights wthetaLev, wsaltLev
1054      * cost_averagesflags now returns year indices in addition to day, month
1055      * sflux balance is performed on annual basis
1056        (sflxumm, sfluxmm2, bal_sfluxmm)
1057      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1058        including separate counting and multipliers
1059    o pkg/rbcs
1060      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1061    
1062    checkpoint58k_post
1063    o testreport:
1064     - always build in dir. "build" (if not there, mkdir build instead of building
1065       & running in input)
1066     - run in dir run (if it exists), in build otherwise.
1067     - call prepare_run (if input/prepare_run exists)
1068     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1069    o pkg/exf modifications to interpolation and rotation routines for more
1070       reasonable treatment of North Pole singularity: for tracers North Pole
1071       value is set to northernmost zonal-mean value, for zonal velocity it is
1072       set to zero, and for meridional velocity it is set to northernmost value.
1073    o pkg/exf/exf_check_range.F
1074     - add tile index to diagnostics and move stop statement to the very
1075       end of the routine.
1076    o pkg/diagnostics: (diagnostics_main_init.F)
1077      define title of isomorphic variables according to the current config.
1078    o pkg/thsice with pkg/seaice dynamics:
1079    - fix domain of computation (interior only, required for exf) and do exchanges
1080    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1081    o towards a standard way of dealing with multi-threading in MONITOR
1082      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1083    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1084       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1085    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1086    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1087    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1088       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1089    o tracer advection:
1090     - clean-up and simplify calc_common_factors.F
1091     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1092       advection subroutine (but still not used within DST advection S/R)
1093    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1094    
1095    checkpoint58j_post
1096    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1097      from file (collects calls previously in FORWARD_STEP)
1098    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1099    o adjoint store dir. adjusted accordingly
1100    o genmake2
1101      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1102    
1103    checkpoint58i_post
1104    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1105      on wind stress (SEAICEstressFactor defaults to 1.)
1106    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1107      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1108    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1109      on CS-grid: no longer loosing mass.
1110    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1111    o pkg/ggl90: fix sloppy output and fix a bug
1112    o pkg/seaice: added SEAICEuseEVPpickup parameter
1113      - Set to false in order to start EVP solver with
1114        non-EVP pickup files when using SEAICEuseEVP
1115      - fix sign error in diffusion in seaice_calc_rhs
1116    
1117    checkpoint58h_post
1118    * Modifications for bottom topography control
1119      o replace hFacC by _hFacC at various places
1120      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1121      o add non-self-adjoint cg2d_nsa
1122      o update autodiff support routines
1123      o re-initialise hfac after ctrl_depth_ini
1124      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1125    * Adding verification for 5x5 box (4-layer) bottom topography control
1126    
1127    checkpoint58g_post
1128    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1129       used for mean seasonal cycle, mean diurnal cycle); add an example
1130       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1131    o pkg/ggl90:
1132      - add parameter (minimum surface kinetic energy)
1133      - fix bug (avoiding division by zero)
1134    o couple pkg/thsice to pkg/seaice:
1135      - modify advection in seaice to accomodate new scalar fields to be advected
1136      - only muliDimAdection scheme work with seaice/thsice
1137      - mapping of thsice-variables to seaice-variables, back and forth
1138      - does not break the verification experiments, but does not give the
1139        desired results either
1140    o pkg/seaice
1141      - make (default) second order advection a bit less confusing?
1142    
1143    checkpoint58f_post
1144    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1145      to pkg/seaice):
1146      - new routines thsice_map_exf and thsice_get_exf provide the interface
1147      - add an additional formal parameter to thsice_solve4temp
1148    o pkg/exf:
1149      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1150      - correct Stefan-Boltzmann constant
1151      - new parameter for longwave surface emittance
1152      - separate some stuff from exf_bulkformulae into new routines  
1153        exf_radiation, exf_wind
1154      - add new parameters and constants: longwave emissivity for ocean, ice
1155        and snow, evaporation parameters over ice
1156      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1157        either wind from stress or stress from wind
1158    o pkg/thSIce:
1159    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1160    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1161       and THSICE_CALC_THICKN
1162    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1163    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1164      to make debugging easier.
1165    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1166    o pkg/bulk_force:
1167      - clean-up comments and parameters ;
1168      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1169    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1170      generate new output for test-experiment: aim.5l_cs.thSI
1171    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1172      testreport accordingly
1173    
1174    checkpoint58e_post
1175    o SEAICE_CGRID adjoint done
1176    o R_STAR adjoint implemented.
1177      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1178      * need to sort out init. of h0facc, etc.
1179    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1180      to be able to use it in pure forward.
1181    
1182    checkpoint58d_post
1183    o upgrade simple test-experiment to tutorial example:
1184     step.1: duplicate the experiment and (step.2) will remove the old copy.
1185      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1186      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1187      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1188      tutorial_global_oce_biogeo    <- copy of dic_example
1189      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1190      tutorial_plume_on_slope       <- copy of plume_on_slope
1191      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1192      tutorial_global_oce_optim     <- empty for now (David ?)
1193      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1194     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1195    o correct a sign problem in cost_scat.F
1196    o obcs and ptracers: fix boundary conditions for advections schemes
1197      with larger stencil
1198    o thsice adjoint: start
1199    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1200      completeness
1201    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1202      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1203    o ptracers adjoint:
1204      * avoid extensive recomputatations
1205      * fix missing re-init. of gptr (missed by TAF)
1206    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1207      me to turn off the excessive output to STDOUT that this package produces
1208    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1209      and add those terms in Vector-Invariant formulation.
1210    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1211      if the control period (xx_hfluxperiod etc) is 0
1212    o in profiles pkg, clean routines and fix details
1213    o in ecco pkg, reading ssh data:
1214      fix problem in case the model does not start at iter0=0
1215    o fix mnc-pickup/restart for ptracers
1216    o new package prifiles:
1217      code to compute profile-based cost by Gael Forget
1218      (modifs in ecco, ctrl, autodiff)
1219    o Benign bug fix in initialization (spotted by M. Mazloff) of
1220      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1221    
1222    checkpoint58c_post
1223    o adjoint: finish NLFS adjoint and provide reference output in
1224      verification/global_ocean.90x40x15/results_ad_nlfs
1225    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1226      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1227      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1228      with SEAICE_CGRID defined.
1229    o move calendarDumps from "data" to "data.cal" and clean-up the code
1230      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1231    o add useEXF & useCAL flags (for now, set in hard-coded way)
1232    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1233      (were missing in NH mode, and wrong in quasihydrostatic mode).
1234      waiting for Chris updated version of calc_gw to add those CALLs.
1235    o fix bug in quasihydrostatic S/R ;
1236      add a test for this option: global_ocean.90x40x15.qshyd
1237    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1238      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1239    o add on/off flag useOffLine for package OFFLINE
1240    o seaice:
1241      - modify advection so that it works also on the C-grid
1242      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1243        problem in multi-tile runs with C-grid
1244      - add flags for clipping ice velocities and/or masking solver forcing
1245      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1246        C-grid solver
1247      - added a few comments to seaice_diffusion.F
1248      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1249        are now exclusive)
1250      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1251        required re-ordering the code a little:
1252       + make DAIRN global variable (defined in SEAICE)
1253       + move computation of the viscosities eta and zeta into a new separate
1254         routine (because I need to recompute them in seaice_ocean_stress.F)
1255    
1256    checkpoint58b_post
1257    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1258      update output.txt of exp. aim.5l_cs.thSI
1259    o various mnc cleanups and improvements:
1260      + shrink lookup tables by factor of ~4
1261      + better error reporting when running out of lookup space
1262      + able to handle longer path/file names (up to 500 chars)
1263    o adjoint:
1264      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1265      - TBD: "hidden" mom_vecinv recomp. in dynamics
1266    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1267     (allow to differentiate between forcing components using new integer flags:
1268      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1269     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1270    o ecco
1271      - enable trend removal from SSH anomaly obs.
1272    o adjoint
1273      - a fix for PmEpR when #undef EXACT_CONSERV
1274      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1275      - try to fix "hidden" recomp. in forward_step for NLFS
1276        (NLFS seems broken sometimes after I checked it in)
1277    o seaice:
1278     - add c-grid version of the dynamic solver:
1279       + three new routines that are the c-grid substitute lsr, dynsolver
1280         and ostres
1281       + put a few fields that were local to dynsolver into global common
1282         blocks, so that I can move the computation of stresses etc into
1283         seaice_lsr (saves coding but may break the adjoint).
1284     - replace more hardwired parameters by runtime parameters
1285     - add ice masks that mask the rhs of the implicit solvers where there
1286       is no ice (commented out in seaice_dynsolver, because i am not sure
1287       if this works properly), eventually this should replace the clipping
1288       of ice velocities in seaice_dynsolver to +/-40cm/s.
1289    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1290      include it only where its needed
1291    o move balancing of fluxes before the call of external_forcing_surf
1292    o seaice:
1293      - correct units of turning angles (now they are really in degrees)
1294      - move computation of GWATX/Y out of main routine into dynsolver
1295      - initialize GWATX/Y in seaice_init
1296    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1297      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1298    o seaice: add runtime flags for turning angles (default to zero)
1299    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1300      and trend from exf forcing and ctrl control adjustments
1301    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1302      (since checkpoint57x_post)
1303    o change the default rotation period to 86164.s = the Earth rotation
1304    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1305      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1306    o seaice advection: add code for choosing between the default (2nd order
1307      central differences) and multiDim advection schemes provided by
1308      pkg/generic_advdiff
1309    o seaice:
1310      - removed all references to SEAICE_GRID.h fields from
1311        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1312        (cubed-sphere configuration will change a little)
1313      - grid computations in seaice_init are obsolete now.
1314      - cleaned up code a little so that is easier to read (hopefully).
1315      - added new (better?) discretizations of default advection and diffusion
1316        (turn on with SEAICEuseFluxForm)
1317      - replace 1 in 3d global fields by kSurface in growth.F
1318      
1319    checkpoint58a_post
1320    o seaice:
1321      - bug fix in advect.F
1322    o shelfice:
1323      - separate shelfice load anomaly from pload (breaks with time
1324        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1325        Its default is 0., but it may be computed more cleverly from (unknown)
1326        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1327        done offline. A good approximation of the pressure load anomaly is
1328        necessary to avoid large initial adjustment processes underneath
1329        deep-reaching shelfice.
1330      - small fix in ISOMIP shelfice_thermodynamics
1331      - add more sophisticated thermodynamics of Hellmer (1989), this is
1332        now the default
1333      - give a few constants more intuitive names
1334    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1335      if bulk formulae are used in long integration (especially EmPmR). Turn
1336      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1337      if balancePrintMean, the imbalance that is substracted is printed to
1338      STDOUT.
1339    o fix bug (typo) in obcs_apply_eta.F
1340    o add a new package shelfice which enables us to model the circulation
1341      underneath shelf-ice with draughts of hundreds of meters.
1342     - works
1343     - to do: + include improved thermodynamics
1344              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1345                instead of new field kTopC
1346              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1347                instead of new field R_shelfIce and new code in ini_depth.F
1348                and ini_mask_etc.F?
1349              + adjust vertical mixing schemes?
1350    o seaice pkg:
1351     - add a cpp-flag to include a simple formula for a salinity dependent
1352       freezing point of sea water at the surface
1353     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1354       meridional stresses are now different (and hopefully correct)
1355    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1356       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1357       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1358    o pkg/diagnostics: add options and parameters for regional-statistics
1359       diagnostics ; define regions by reading a region-mask from a file
1360       (might add other options later)
1361    o pkg/bulk_force:
1362     - add option and parameters to use AIM surface-flux formulae.
1363     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1364       others forcing fields (defined in PARM05, parameter file "data") are loaded
1365       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1366     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1367     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1368     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1369       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1370     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1371    
1372    checkpoint58
1373    o add "--embed-source" option to genmake2 which, when the supporting
1374      tools can be compiled (as determined by genmake2) will turn on the
1375      embed_files package which then embeds the entire MITgcm source code
1376      (*.[fFhc] + Makefile) used for the build within the executable
1377      - requested by CNH but off by default
1378      - adds a paltry <9MB to the mitgcmuv executable in most cases
1379      - only writes the output when useEMBEDSRC in eedata is true
1380    o clean up 3-dim. relaxation codes:
1381      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1382      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1383      * Thanks to Tom Haine for testing!
1384    
1385    checkpoint57z_post
1386    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1387      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1388    o fix the pickup behavior for obcs in combination with ptracers
1389    o fix a bug in ptracers_external_fields_load
1390    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1391      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1392    o transfered surface NH pressure to eta field (if exactConserv).
1393    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1394         and update lab_sea output.txt file.
1395    o completing 3-dim. relaxation code: additional term
1396         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1397      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1398      * At compile time, in "EXF_OPTIONS.h" set
1399          #define  ALLOW_CLIMTEMP_RELAXATION
1400          #define  ALLOW_CLIMSALT_RELAXATION
1401      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1402          tauThetaClimRelax3Dim = 15552000.0,
1403          tauSaltClimRelax3Dim  = 15552000.0,
1404      * 3 cases:
1405          1) Use a constant-in-time 3-dim. field
1406          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1407          3) Real-time relax. to time-evolving prescribed field
1408    o Adding Laplacian-type smoothness constraint on
1409      initial and boundary (forcing) controls (ic, bc)
1410      * enable at compile-time via
1411        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1412      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1413      * Absolute scale somewhat unclear so far
1414      * no area weighting was included since no other cost term does so far
1415    
1416    checkpoint57y_post
1417    First step for a NLFS adjoint
1418    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1419    o new init. routines for calc_r_star, calc_surf_dr
1420    o still need to deal with ini_masks_etc
1421    o testreport seemed happy
1422    checkpoint57y_pre
1423    
1424    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1425    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1426    o add new offset feature to offline pkg (plus minor cleanup)
1427    o cfc fixes for final year of integration
1428    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1429      be in GCHEM_OPTIONS).
1430    
1431    checkpoint57x_post
1432    o fix testreport Pb in multiple test experiment.
1433    o cleanup our namelist syntax in verification:
1434      - make it more F95 standards compliant (some work still needed)
1435      - allows the vast majority of our tests to work with gfortran
1436    o Non-Hydrostatic:
1437     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1438     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1439    o Allow to apply AB on T,S rather than on AB(gT,gS):
1440     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1441     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1442       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1443     - need a "clever" read_pickup to restart from the other AB formulation
1444    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1445    o remove some unused variables (reduces number of compiler warnings)
1446    o adjoint
1447      * Disable useVariableViscosity for adjoint for time being
1448        (there are a number of extensive recomputations)
1449      * Initialize certain variables needed for adjoint
1450    
1451    checkpoint57w_post
1452    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1453                 fix the singleCpuIO RS version of MDSWRITEFIELD
1454       and add a WARNING if using globalFiles=T with multi-processors.
1455    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1456      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1457    o tracer advection scheme:
1458      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1459       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1460       was not very convenient).
1461      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1462       (further tests needed for the implicit DST & Flux-Limiter schemes).
1463    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1464      and sRef for convenience, handy, when you want to initialize
1465      ptracers in a large domain with a constant non-zero value. Also,
1466      untangle ptracers_init.F a little.
1467    
1468    checkpoint57v_post
1469    o change dome exp. to use variable viscosity in side-drag terms.
1470    o remove all the files from the cfc_offline test since they are now
1471      incorporated into tutorial_cfc_offline which has been producing
1472      identical results for a few days of testing
1473    o add new parameter: sideDragFactor to enable half-slip-side BC
1474      and change side-drag S/R to use viscosity from mom_calc_visc
1475      (can switch back by setting sideDragFactor=0.); affects results at
1476      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1477       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1478    o vorticity & strain are now computed without masking, to account for
1479      no-slip-side BC in variable viscosity calculation ; mask is applied
1480      anyway later on, before computing advection/coriolis terms.
1481    o modify exp4 to test new obcs support for reading from external files
1482      and for passive tracers
1483    o fix behavior of ptracers_monitor when monitor output is written to a
1484      netcdf-file; still not independent of monitor.F (writes in the same
1485      file).
1486    o change default value of tRef (put a uniform, meaningful value for ocean
1487      & atmos) and initialize sRef (was missing, as Martin mentioned).
1488    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1489      to be proportional to enstrophy dissipation length.  Thus,
1490       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1491      This is now consistent with Smagorinsky and with the manual.
1492    
1493    checkpoint57u_post
1494    o OBCS and PTRACERS: add open boundary support for passive tracers
1495      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1496        OB-values from file; this is not different from the way theta and salinity
1497        are treated
1498      - however, Orlanski-radiation conditions are not supported, and the model
1499        will stop if you use pTracers and Orlanski at the same time.
1500      - beefed up the rountine obcs_external_fields_load: now only those open
1501        boundary values are overwritten with values from files for which there
1502        are really files, otherwise the OB-fields remain untouched. This makes
1503        it possible to use different OBs at different ends of the domain (as
1504        with EXF)
1505    o reduce number of exch calls in shap_filt (s2).
1506    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1507      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1508    
1509    checkpoint57t_post
1510    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1511    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1512      same truncation, independent of the face number: affects affects several
1513      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1514    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1515      note that biharmonic viscosity + no-slip was not tested in any experiment.
1516    o fix bug in non-linear free-surf side-drag ; generate new output for
1517      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1518    o make mnc honor the writeBinaryPrec flag for most kinds of output
1519    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1520    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1521      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1522    o add brackets in multi-terms sum to get same truncation, independent of
1523      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1524      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1525    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1526      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1527      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1528      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1529      Suggested values of viscosity parameters found in mom_calc_visc.
1530      Many new viscosity diagnostics available.
1531    
1532    checkpoint57s_post
1533    o Add clearing-house for viscosity calculations, mom_calc_visc and
1534      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1535      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1536      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1537      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1538      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1539      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1540      ViscAhStrain and viscAhTension are now retired.
1541    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1542    o In response to JMC's bug report, genmake2 now ignores any soft-links
1543      that it finds in the *current* directory when searching for files.
1544      Soft-links found in any other source directories will still work as
1545      they did before.
1546    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1547      a C routine to unlimit the stack size
1548    o mnc-ify pkg/aim snapshot vars
1549    o mnc-ify pkg/land as requested by Daniel
1550    o various changes to mnc including:
1551      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1552      - output can now be grouped so that all files within a group
1553          change the ITER portion of their names in lock-step together
1554      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1555          and works with both EXCH1 and EXCH2 (but needs more testing)
1556      - writing works for all verification test cases w/ g77 on Linux
1557    
1558    checkpoint57r_post
1559    o make MNC variable initialization happen earlier
1560    o add diagnostics for (almost) each term of the momentum Eq.
1561    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1562    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1563    o remove MINIMAL_TAVE_OUTPUT option ;
1564      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1565    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1566      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1567    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1568    o add time-dependent SST, SSS control
1569    o cost terms in ecco/ modularized (new cost_generic.F)
1570    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1571    o new infrastructure for seaice model vs. obs misfits in seaice/
1572      * driver from the_main_loop.F is seaice_cost_driver.F
1573      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1574      * gradient check in Exp. 6a of natl_box_adjoint/
1575    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1576      (see README file)
1577    
1578    checkpoint57q_post
1579    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1580    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1581      - bug was reported by Jean-Michel and Ian Fenty
1582    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1583      update exp. cpl_aim+ocn output.
1584    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1585      Needed for high-res. runs with large global files
1586      to be able to limit tapelev size
1587    o Changed some tests for adjoint:
1588      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1589      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1590      * global_ocean.90x40x15/ back to default 3-level checkpointing
1591    o Modifications to enable scripted COMMON to MODULE conversion
1592      * verification/OpenAD/code/ has necessary scripts and description;
1593      * converts, compiles and runs successfully;
1594    
1595    checkpoint57p_post
1596    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1597    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1598      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1599    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1600    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1601      (was already the case for dissipation with mom_vecinv,
1602       and also the case for grad.PhiHyd when staggered-timeStep)
1603      This will allow to put dissipation out-off the AB time-stepping.
1604     Unfortunately, affects truncation error. Update output of exp. that "fails"
1605      (cg2d matching number) and leave the others for later: front_relax(10),
1606      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1607      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1608    
1609    checkpoint57o_post
1610    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1611      (2) its ready to be documented during the 20050801 DocFest
1612    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1613      for ideal_2D_oce and lab_sea on linux_ia32_g77
1614    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1615      in global1x1_tot/code_seaice_adj to access indices 32, 33
1616      (worth another tag)
1617    
1618    checkpoint57n_post
1619    o adding precip control xx_precip 32
1620    o adding swflux control xx_swflux 33
1621    o Replacing 10 forcing penalty cost routines by 1 generic.
1622    o Implementing partitioning in time-mean and variable adjustment
1623      for atmos. state.
1624    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1625    o in natl_box_adjoint:
1626      * updated exp 1 to 10
1627        (but does not have time-mean vs. variable split results yet)
1628    o updated global1x1/*_seaice_adj/
1629      to incorporate latest changes
1630    o enable useSingleCpuIO for mdsio vector routines
1631      (applies in particular to tapelev I/O)
1632    o removed inefficient K-loop in all active_file*control*.F
1633    
1634    checkpoint57m_post
1635    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1636      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1637    o pkg/exch2: filling of face-corner halo regions is optional
1638      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1639    
1640    checkpoint57l_post
1641     tag before updating tutorials (pre-release-2)
1642    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1643       for output and interpolation of input fields onto model grid)
1644    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1645       Affects results of exp. rotating_tank ; update output.txt.
1646    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1647          and taking the square quantity and/or using a fraction-weight field.
1648    o fix aim_diagnostics_init.F mate numbers.
1649    o add mnc output capability to diagnostics/diagstat and update
1650      our cvsignore files for the ACSII output generated
1651    
1652    checkpoint57k_post
1653    o lab_sea now uses diagnostics package and provides a suite of
1654      new EXF diagnostics output.
1655    
1656    checkpoint57j_post
1657    o exf
1658      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1659        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1660        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1661      * extended diagnostics output
1662        - now includes all EXF variables
1663        - hs, hl moved to common block
1664        - separate S/R for diagnostics, called after ctrl vector is added
1665        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1666        - EXFqnet contains true Qnet (i.e. includes qsw)
1667      * updated verif. lab_sea, global_with_exf
1668      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1669        to ensure that diagnostics sees a true EXFqnet
1670    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1671    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1672      several times with different frequencies.
1673    o mnc-ify the thsice package as requested by Daniel Enderton
1674      - the monitor--MNC output needs work
1675      - many attributes need to be added (most are currently blank)
1676    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1677      - many attributes need to be added (most are currently blank)
1678    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1679    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1680    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1681      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1682         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1683    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1684     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1685    
1686    checkpoint57i_post
1687    o Diagnostics package was changed: diagnostic allocation is now deactivated
1688      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1689    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1690      add 1rst Order upwind vertical Shear.
1691    o add a quick fix for A/B checkpointing in OFFLINE mode
1692    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1693      end-run around the C/Fortran linking horror in eesup/src/timers.F
1694    o added pkg/runclock: allows user to terminate run based on wall clock
1695    o added non-hydrostatic scaling parameter: nh_am2
1696    o pkg/my82: futile attempt to make results compiler-independent by adding
1697      some "_d 0", etc. no effect.
1698    o for mnc output, fill the 'T' coordinate var with myTime and create a
1699      separate 'iter' variable for iteration count
1700    o pkg/diagnostics:
1701      add new capability: output of Global/Regional & per-level statistics ;
1702      tested against monitor output (including land & thSIce) on various exp.
1703    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1704    
1705    checkpoint57h_done
1706      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1707      data.diagnostics, data.gchem, data.ptracers) is done.
1708    
1709    o pkg/diagnostics: prepare for Global/Regional statistics.
1710      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1711    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1712      and rename it: DIFFERENT_MULTIPLE
1713    
1714    checkpoint57h_post
1715    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1716    o pkg/diagnostics: change output frequency, now in seconds (instead
1717      of Nb of iterations). This requires to change data.diagnostics.
1718    checkpoint57h_pre
1719    
1720    o in mnc, let the user create the output dir if both mnc_outdir_date
1721      and mnc_outdir_num are false
1722    o add fflags() to pkg/diagnostics which allows one to specify, on a
1723      per-file basis, the file precision [default behavior is unchanged]
1724    o added diagnostics to pkg/kpp, including computation of mixed layer
1725      depth based on a temperature/density criterion
1726    o updated verification/natl_box to test the new pkg/kpp diagnostics
1727    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1728    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1729    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1730      not mnc -- this mistake was found by JMC and is now corrected
1731    
1732    checkpoint57g_post
1733    o add Adams-Bashforth 3rd Order time stepping:
1734      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1735      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1736    checkpoint57g_pre
1737    
1738    o make lambda[Theta,Salt]ClimRelax spatially varying
1739      (default remains spatially uniform constant based on tau)
1740    o added new control variables
1741      * init. uVel, vVel, etanN
1742      * lambda[Theta,Salt]ClimRelax
1743    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1744      (suggested by G. Forget)
1745    
1746    checkpoint57f_post
1747    o add parameter "baseTime" = model base time = time at iteration zero
1748      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1749      account for baseTime shift
1750    o move Coriolis arrays from PARAMS.h to GRID.h
1751    checkpoint57f_pre
1752    
1753    o mnc-ifying the seaice package
1754    o introduced an alternative length scale calculation for use in the limiting
1755      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1756    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1757    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1758      as well as grad(vort3).  Made it compatible with both approximate form
1759      for the cubed sphere and full form of these gradients.  Added flag
1760      useFullLeith to select between approximate and full form.  
1761    o add "d0" in getcon.F to reduce differences between compilers/platforms
1762      update output.txt of exp. fizhi-gridalt-hs
1763    o change port_rand funtion to allow to set the seed.
1764    o fix obscure MNC bug involving conversion between reals and integers
1765      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1766        new version is now more standards-compliant
1767    o adjoint-related modifications
1768      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1769      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1770      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1771    
1772    checkpoint57e_post
1773    o Adding eddy stress controls a la Ferreira et al.
1774    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1775    
1776    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1777      update output.txt of exp. fizhi-gridalt-hs
1778    o add more "Z" dimensions and associated coordinate vars to MNC
1779    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1780    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1781      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1782      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1783      months and years.  Requires pkg/cal.
1784    o diagnostics: add pickup functionality
1785      - off by default for backwards compatibility
1786      - current version only uses MDSIO -- MNC will be added
1787    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1788    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1789    
1790    checkpoint57d_post
1791    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1792    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1793      output from the diagnostics package
1794    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1795    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1796      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1797    o add coordinate variables to the MNC output from the diagnostics package
1798    o change MNC-flags default value: true when useMNC=TRUE
1799    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1800      the ability (off by default) to read the grid information using MNC
1801    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1802    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1803    o do snap-shot diagnostics at the middle of the time-interval (instead of
1804      at the end).
1805    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1806      new test for AIM with thSIce + slab-ocean
1807    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1808    o move state variable diagnostics to the beginning of the time step ;
1809      (note: still needs some work specially for snap-shot diagnostics)
1810      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1811    
1812    checkpoint57c_post
1813    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1814    o generate new output.txt files on faulks with g77 & the new -ieee option
1815    checkpoint57c_pre
1816    
1817    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1818      update output.txt of exp. global_ocean.90x40x15
1819    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1820      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1821    o add saltFlux(+File) forcing capability with periodicExternalForcing
1822    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1823    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1824    o improvements for the MNC output from DIAGNOSTICS:
1825      - correct handling of the unlimitied dimension
1826      - all dims now have associated coordinate variables
1827      - variables located at U, V, and Corner ("Z") points are now written
1828        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1829        *all* data points are output
1830    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1831    o added pkg/seaice/seaice_monitor.F
1832    o mdsio_readfield.F can now read files visible only to master MPI process.
1833    o pkg/seaice: some test code for ice-modified ocean stress
1834    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1835      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1836      spurious negative numbers for precipitation and humidity.  Will cause
1837      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1838    o pkg/ctrl/
1839      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1840        May be enabled via doPackDiag
1841      *  introduce z-scaling of
1842         + gradient (doZscalePack) and
1843         + control (doZscaleUnpack)
1844    o pkg/mdsio/
1845      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1846      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1847    
1848    checkpoint57b_post
1849    o simplify options in diagnostics_fill arguments (remove weird combinations)
1850    o fix MNC coordinate variables so that they now contain per-face index
1851      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1852      general, EXCH2 grids are only aligned to a "local" coordinate system
1853    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1854    o Implement instantaneous output within pkg diagnostics:
1855      setting a negative frequency in data.diagnostics produces
1856     "snap-shot" output (as opposed to time-average if freq > 0)
1857    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1858      NOTE: change ptracer diagnostics name: use 2 characters to work with
1859            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1860    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1861      becomes the coordinate variable for the 'T' dimension
1862    o add CF-style coordinate variables to MNC
1863      - just a first cut:  numbers are meaningless on the cubesphere and
1864        missing along the T axis but otherwise it works!
1865    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1866    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1867    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1868      this is based directly on what the model compute, so that the content of
1869      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1870    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1871    o clean up build options files for SunOS, in particular
1872      - remove -traditional from xmakedepend
1873      - change -xarch=v9 to -xarch=native for f77
1874      - restore use of make (not gmake)
1875      - add CC=gcc if using g77
1876    o changes per discussion of AM, JMC, & EH3 today:
1877      - move redundant "grid" variables out of "state" -- in preparation of
1878        creating proper CF-style coordinate variables and in recognition
1879        that any/all grid variables can be easily copied (eg. w/NCO) from
1880        the grid files into any of the other NetCDF files
1881      - *always* output grid variables with MDSIO (this will eventually be
1882        changed)
1883      - output MNC grid file if useMNC is true
1884    o every instance of _END_MASTER() has been found and replaced with
1885      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1886      preprocessors
1887    o re-arrange diagnostics pkg initialisation:
1888     - allow each package to extend the available diagnostics list
1889     - add some checking and fix small problems (multi-threaded, ...)
1890     - new S/R diagnostics_fill (replace fill_diagnostics):
1891       look through the short list of active diag. (instead of the long list)
1892       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1893    
1894    checkpoint57a_post
1895    o this set of changes restores TAMC compatibility
1896      tested for global_ocean.90x40x15 adjoint on trough
1897      (what a pain)
1898    
1899    checkpoint57a_pre
1900    o some modifs in tools/build_options for sunos
1901    o call ctrl_pack for ctrl at end for optimcycle=0
1902    
1903    checkpoint57
1904    o add horizontal bi-harmonic viscosity for vertical velocity
1905      - new parameter viscA4W (defaults to viscA4)
1906      - affects only non-hydrostatic code
1907      - to be done: no-slip lateral boundary conditions
1908    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1909    o implement Implicit Vertical advection for pTracers
1910    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1911      (implemented also for implicit vertical diffusion & advection)
1912    o OBCS: extend application of tracer open boundary conditions
1913      to a strip beyond the boundary of width Olx/Oly
1914    o add call monitor to TAF set of required calls (flow directives)
1915      and include in natl_box_adjoint
1916    o untangle a few ifdefs related to cost, ctrl, autodiff
1917      untangel a few ALLOW_ECCO_OPTIMIZATION
1918    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1919      (theta2, salt2 in ecco_cost_weights)
1920    
1921    checkpoint56c_post
1922    o OBCS as control variables
1923      - update ctrl_ad_diff.list, obcs_ad_diff.list
1924      - remove balance of obcs controls from default
1925      - fix index bug nobcs in ctrl_init
1926      - fix dummy fields filen in ctrl_pack
1927      - add dummy weights for obcs
1928    o lsopt: comment out fort.94 output
1929    o optim:
1930      - remove unnecessary header files
1931      - adjusted namelists
1932      - add xerbla.F to Makefile
1933    o exf:
1934      - multiple modifications of exf_check_range
1935      - unit change in exf_init_runoff from [m/year] to [m/s]
1936    o mdsio:
1937      - i/o-vector change debugLevel from debLevA to debLevB
1938    
1939    checkpoint56b_post
1940    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1941      is called from DO_THE_MODEL_IO
1942      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1943      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1944      - clean up PTRACERS_WRITE_TIMEAVE a little
1945    o add another verification experiment that tests both the cfc-pkg and
1946      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1947      reactive tendencies treated inline with regular timestepping
1948    o testreport previously did a lousy job of comparing small numbers, so
1949      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1950      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1951      testreport.
1952    o ptracers_monitor: bug fix for MPI
1953    
1954    checkpoint56a_post
1955    o GCHEM: finish reorganizating the package
1956      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1957        (introduces another 3D-array for each passive tracer, but only if
1958        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1959        gchemTendency is not needed because the timestep is done separately)
1960      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1961      - GCHEM is now---more or less cleanly---separate from PTRACERS
1962      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1963        so clear to me how that should be done in a general way.
1964    o CFC: improve formatting of output in CFC_ATMOS
1965    o PTRACERS:
1966      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1967        that ALL experiments with ptracers enable can be checked. This makes
1968        GCHEM_MONITOR obsolete.
1969      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1970        monitorFreq
1971      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1972    o add PTRACERS (PTR0[1-5]) to testreport output
1973    o exf_check_range:
1974      * default changed to .TRUE.
1975      * will check values for niter0 if debLevA, every timestep if debLevB
1976      * STOP in exf_check_range if 'out of range'
1977      * range chosen generous to allow for potential extema
1978      TBD: a version with stricter range
1979           permitted range would be runtime parameters
1980    o GMredi:
1981      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1982      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1983      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1984    o GCHEM:
1985      - move call to GCHEM_FORCING_SEP, so that it is now called before
1986        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1987      - introduced a useGCHEM runtime flag and applied it everywhere.
1988      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1989        this flag is now only visible within GCHEM-pkg routines.
1990      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1991        be replaced by a 3D array that is computed before thermodynamics; for
1992        this, the tracer ID iTracer had to be included into the parameter list
1993        of ptracers_forcing
1994      - set up forward_step to call gchem_forcing, that will replace
1995        gchem_forcing_int in ptracers_forcing
1996      - cleaning up
1997    o small cleaning of exch2: remove files that are also in eesupp/src
1998    
1999    checkpoint56
2000    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2001    o mnc: cleanup "full" files--fixes out-of-memory problem
2002    o ECCO-GODAE
2003      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2004      * fully merged and updated from SIO code
2005        windstress sign change affects
2006        - exf_inscal_[u/v]stress
2007        - sign of xx_tau[u/v] adjustments
2008        - signs in cost_scat
2009      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2010      * natl_box_adjoint updated and compressed
2011      * 2-level checkpoint switch added
2012        (tested in EXP. 1 of natl_box_adjoint)
2013      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2014    o SVD
2015      * first complete, non-hacked version for SVD calculations
2016      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2017        performed via direct access files admtlm_vector.it????
2018        (via ctrl_[un]pack)
2019      * optimcycle is used for ARPACK iteration counter
2020        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2021      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2022        and add linear transforms where necessary
2023      * controls are initial/final SST, SSS (can be extended; need to check
2024        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2025    o mdsio: filename info to both stderr, stdout
2026    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2027      from sign change
2028    
2029    checkpoint55j_post
2030    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2031      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2032    o add consistent build directories and .cvsignore files to verification
2033    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2034    o make all subroutines 30 or less characters in length for certain older
2035      compilers to work (a thorough search only turns up two routines in
2036      pkg/ptracers)
2037    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2038      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2039    
2040    checkpoint55i_post
2041    o change arrays for total vertical diffusivity (2.D if explicit,
2042      3.D if implicit) ; each ptracer uses its own background value.
2043    o added mnc/NetCDF output capability to ocn_compon_interf
2044      - added bits to verification/cpl_aim+ocn so that it can run on
2045        ITRDA and other clusters without the mpirun "-wd" option
2046    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2047      configuration
2048    o give MNC the ability to create additional files rather than
2049      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2050      - the default is just less than 2GB which is a practical limit
2051        on many systems
2052    o Compute the non-local term using either KPP vertical diffusivity (=default)
2053       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2054    
2055    checkpoint55h_post
2056    o add verification test "vermix"
2057    o remove all the *_ioinc flags and replace with the single global
2058      outputTypesInclusive flag
2059    o allow to set a vertical profile of vertical diffusivity for T & S
2060    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2061    o useMNC moved from data.mnc to data.pkg
2062    
2063    checkpoint55g_post
2064    o Renaming carbon AD experiments to comply with testreport conventions
2065    o Updating adjoint of Held-Suarez hs94.1x64x5
2066    o Fixing directives for non-ECCO forward_step, after ECCO directives
2067      have been fixed to avoid recomp. of do_oceanic_phys
2068      Works well for global_ocean.90x40x15,
2069      but recomp. issue remains for carbon
2070    o Updating adjoint output for natl_box_adjoint after
2071      pkg/ecco has been modified (see taga c55d_post)
2072    
2073    checkpoint55f_post
2074    o rename to timeave_init_fixed
2075    
2076    checkpoint55e_post
2077    o some delicate re-shuffle of store directives to avoid one
2078      extra call of do_oceanic_physics
2079      affects ecco_the_main_loop.F, do_oceanic_physics.F
2080      checkpoint_lev1_directives.h
2081    o NB: this may break global_ocean adjoint temporarily,
2082      but it is clear how to fix it. Will do later, need this now.
2083    
2084    checkpoint55d_post
2085    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2086    o ecco_cost_weights is modified to 1x1 runs
2087    o modifs to allow observations to be read in as
2088      single file or yearly files
2089    o enable to read exf forcing fields as either
2090      single file or yearly files (flag useExfYearlyFields)
2091    checkpoint55d_pre
2092    
2093    o switch between 2-level and 3-level checkpointing
2094    o add ability of MNC to write local and "partial" (eg. 2D slices where
2095      the full 3D field is never actually stored) arrays to NetCDF files
2096      with the correct (that is, the complete multi-dimensional) set of
2097      array indicies
2098      - used in mom_vecinv() to write the diagFreq output
2099      - tested (demonstrated) in verification/aim.5l_cs
2100    o further mnc-ification
2101      - add verification/lab_sea to the list with mnc setups
2102      - fix undefined mnc v-names in cd_code
2103      - add kpp to mnc output (both snapshot and timeave)
2104    o non-hydrostatic code
2105      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2106        in calc_gw.F
2107      - defaults to viscAh
2108      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2109        friction or Leith) in non-hydrostatic mode, as long as there is
2110        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2111    o pkg/cost
2112      extend simple cost functions to treat time mean quantities
2113      (T,U,V) via cost_accumulate_state from cost_tile
2114    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2115        be 2 times larger than the minimum size the advection scheme requires.
2116        now get a perfect conservation of salt in advect_cs test-exp (updated)
2117    o GGL90 (Gaspar's TKE mixed layer)
2118      - add horizontal diffusion of TKE, requires exchanges in
2119        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2120        default. In OPA there is no horizontal diffusion of TKE but the
2121        mixing coefficients are computed from a horizontal average of TKE of
2122        6 points or so. I think that diffusion has a little more physical
2123        justification.
2124      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2125        was in vain)
2126      - mask tke-variable in ggl90_init
2127    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2128    o fix biharmonic diffusion on CS-grid.
2129    o more obcs stuff
2130      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2131        for reading boundary values. This routine is called from
2132        obcs_prescribe_read
2133      - updated obcs_check
2134      - changed sponge layer relaxation parameter units for days to seconds
2135      - turned off sponge layer by default
2136      - changed argument list of OBCS_CALC to myTime+deltaTclock
2137      - fixed about 35 bugs in obcs_external_fields_load
2138    
2139    checkpoint55c_post
2140    o obcs stuff
2141      - new runtime flags useOBCSprescribe, useOBCSbalance
2142      - re-arranged obcs_calc
2143      - moved exf_getobcs to obcs_prescibe_read
2144        obcs_prescibe_read is called after ORLANSKI stuff
2145        and independent of it (executable can contain all).
2146      - updated obcs_check
2147      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2148        These may be necessary only if tangential velocities are
2149        prescribed at OB, not sure, needs testing.
2150    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2151      which simplifies the calls and passes the ifc check-bounds test
2152    
2153    checkpoint55b_post
2154    o add a 2D scalar, Z location, exchange_2 routine.
2155    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2156      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2157      affects advect_cs results (for the wrong reason): update output.txt
2158    o use a more standard discretization for biharmonic viscosity ;
2159     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2160      affects results of dome set-up: update output.txt
2161    o fix gad_advection.F (CubedSphere part), back to version 1.23
2162    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2163    
2164    checkpoint55a_post
2165    o merged code to
2166      * prescribe/read time-dependent open boundaries
2167        (works in conjunction with exf, cal)
2168      * sponge layer code for open boundaries
2169      * each boundary N/S/E/W now has its own CPP option
2170        (healthy for the adjoint)
2171    
2172    checkpoint55
2173    o up-to-date adjoint of previous breaks
2174      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2175      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2176      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2177      - carbon: * remove tr1-related adjoint verification
2178                * add ptracer as control variable
2179    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2180      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2181    
2182    checkpoint54f_post
2183    o in verification/carbin/ remove experiment related to
2184      ALLOW_PASSIVE_TRACER (array tr1 etc)
2185      code_ad/ input_ad/ results_ad
2186    
2187    o add two new packages
2188      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2189        + subject to optimization (memory)
2190      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2191        + subject to reordering (many GOTOs in the original code)
2192        + so far opps is called for every (i,j) point, and then operates in
2193          the vertical; one may want to reorder the scheme in order operate in
2194          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2195          fields)
2196    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2197      - all verification tests compile and run with linux_ia32_g77
2198      - defaults are compatible with current input files--nothing
2199        should change if you were not previously using MNC
2200      - MNC output has been added in numerous places (eg. timeave)
2201        but there are still a few writes not yet do-able with MNC
2202        (this is in progress)
2203      - flags now allow for either/or/both use of MDSIO and MNC and
2204        documentation will soon follow
2205      - numerous small formatting cleanups for ProTeX
2206    o add version info (via BUILD_INFO.h) to MNC and stdout
2207    
2208    checkpoint54e_post
2209    o add two new packages
2210      - pp81 (Packanowski and Philander, 1981), Richardson number and
2211        stratification dependent mixing
2212      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2213      - these scheme operate in a similar manner as KPP (without ghat, of
2214        course), however there is only one diffusivity that is used for both
2215        temperature and salinity (and passive tracers)ç
2216    o add offline package
2217    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2218      provided by Stephanie Dutkiewicz
2219    o genmake2: add ability to search for C compilers and cleanup test output
2220      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2221    
2222    checkpoint54d_post
2223    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2224    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2225      leading to additional shift by 5 days each year of integration
2226       (i.e. leading to considerable offset over the years)
2227    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2228    o start with no AB and no initial filtering (staggerTimeStep):
2229      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2230    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2231      (external loading & cpl import/export stay in forward_step.F)
2232    o update coupling interface to work with new staggerTimeStep
2233    o change MDSIO ptracers_pickup.
2234    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2235    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2236    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2237    
2238    checkpoint54c_post
2239    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2240      this affects (truncation error) output.txt of test-exp:
2241       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2242    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2243    o change Qnet to always be the net heat flux, (+upward).
2244      affects (truncation error) output of natl_box exp.: updated
2245    o define the max number of passive tracers in PTRACERS_SIZE.h
2246    o start to test mnc routinely in exp0
2247    o add sea-ice loading (sIceLoad) as a new forcing field.
2248    
2249    checkpoint54b_post
2250    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2251       impressive on Altix and Opteron systems)
2252    o diagnostics can now write NetCDF files through the mnc package
2253    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2254    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2255    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2256      affects (truncation error) output of lab_sea & natl_box exp.: updated
2257    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2258    
2259    checkpoint54a_post
2260    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2261    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2262    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2263    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2264      + internal_wave (shift in writing cg2d_ini_res)
2265    checkpoint54a_pre
2266    
2267    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2268      - modified verification/lab_sea and natl_box_adjoint accordingly
2269    
2270    checkpoint54
2271    checkpoint53g_post
2272    o prepare splitting of thermodynamics: store convect.counter in common block
2273    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2274      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2275    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2276    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2277    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2278    o restore adjointability
2279    
2280    checkpoint53f_post
2281    o modifications that affect AIM experiment results (update output.txt):
2282      - no advection of S at top interface Nr (pkg/generic_advdiff)
2283      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2284    o AIM pkg:
2285      - include stability function into surf.Flux derivative relative to Tsurf
2286      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2287    
2288    checkpoint53e_post
2289    o merged cylindrical coord configuration
2290    o added rotating_tank experiment
2291    checkpoint53e_pre
2292    
2293    checkpoint53d_post
2294    o faulks upgraded: re-generate output.txt that have changed:
2295       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2296    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2297    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2298    o added Sadourny discretization of Coriolis
2299      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2300      - re-enabled use of omega3 (useAbsVorticity)
2301    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2302      vector-invariant equations
2303      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2304    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2305      hopefully without new bugs
2306      - still to do: biharmonic friction for non-hydrostatic w
2307    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2308    o regenerated output for global_ocean_ebm (using -ieee)
2309    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2310      of mom_common/
2311      - simple re-arrangement of instructions within computing loop
2312    checkpoint53d_pre
2313    
2314    checkpoint53c_post
2315    o new version of coupler for AIM+thSIce and Ocean models
2316     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2317     - land: change Evaporation of snow
2318     - aim with thSIce: fix bug in snow-precip.
2319    o changes to calc_gw.F
2320     - bug fix for w^2 term near the bottom boundary
2321     - (hopefully) improve the lateral slip boundary condtions for use with
2322        partial/looped cells
2323      - because the bug fix changes two verification experiments anyway (exp5
2324        and plume on slope), change the lateral boundary condition from half slip
2325        to the value of no_slip_sides
2326    o ebm package wasnt quite up to the parallel task. Fixed that.
2327    o Adjoint of EBM package + verification
2328      * TLM OK
2329      * ADM not sufficient accuracy yet (needs further testing)
2330    
2331    checkpoint53b_post
2332    o Commiting new energy balance model to repository
2333      * package is pkg/ebm
2334      * verif. is verification/global_ocean_ebm
2335      * references are in ebm_driver.F
2336    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2337    C        Global thermohaline circulation. Part I:
2338    C        Sensitivity to atmospheric moisture transport.
2339    C        J. Climate 12(1), 71-82
2340    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2341    C        Global thermohaline circulation. Part II:
2342    C        Sensitivity with interactive transport.
2343    C        J. Climate 12(1), 83-91
2344    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2345    C        Destabilization of the thermohaline circulation
2346    C        by atmospheric eddy transports.
2347    C        J. Climate 7(12), 1870-1882
2348    o Will need long integration testing.
2349    checkpoint53b_pre
2350    
2351    o created pkg/mom_common in preparation for variable viscosity code
2352    o renamed and split ini_mnc_io
2353    o pkg/land: only liquid water can diffuse or run-off
2354    o AIM using land: soil wetness availability account for snow
2355    o added printMapIncludesZeros to EEPARMS namelist
2356    
2357    checkpoint53a_post
2358    o restore TAMC compatiility for exf_constants.h
2359      (no usage of _d in .h)
2360    o Additional storing in KPP in an attempt to fix
2361      TAMC problem with adjoint of KPP code.
2362      (no success...)
2363      Identical code works fine with TAF.
2364    o Fixed verification/natl_box_adjoint experiments.
2365      Initial conditions for Experiments 4 and 5 are now
2366      set to "SEAICE_initialHEFF=0", which is more reasonable,
2367      and hence gives results closer to that of Experiment 2.
2368      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2369    
2370    checkpoint53
2371    o stable checkpoint with up to date adjoint
2372      TLM tests only run for 1st grdchk at the moment. Its unclear if
2373      this is a code problem or a problem with resetting code for g_
2374      variables that is being autogenerated wrong.
2375      Otherwise:
2376       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2377       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2378         are both still in chaos following their security messes.
2379    
2380    checkpoint52n_post
2381    o various build (mostly genmake2) changes including:
2382      - ability to build/run more easily within Cygwin and MacOS X
2383      - more complicated Makefiles with a stronger dependence on Gnu Make
2384    o pkg/seaice modifications
2385      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2386        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2387        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2388      - changed proxy for geostrophic velocity and updated
2389        verification/lab_sea/results/* accordingly
2390      - removed ADI dynamic solver from pkg/seaice
2391      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2392        they caused a segmentation fault under certain circumstances
2393      - removed unused field WATR
2394    o bug fix in exf-package:
2395      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2396         now reflect that.
2397    o small fixes in the cal-package:
2398      - set reference date to first of January for the 'model'-calendar
2399      - failing of cal_CheckDate in cal_FullDate now actually results in a
2400        warning
2401    o small modifications in exf-package to increase flexibility:
2402      - change climtempfreeze from a constant to a runtime parameter that
2403        is specified in data.exf_clim (default = -1.9)
2404      - introduce runtime parameter windstressmax (default = 2.0) that is
2405        specified in data.exf
2406    o fix in pkg/thsice:
2407      - update Evap (Tsf changes) to be consistent with Latent heat flux
2408      - maintain snow precipitation unchanged (even if Tsf >=0).
2409     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2410    
2411    checkpoint52m_post
2412    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2413      this does not change any of the results, because myIter=0 in swfrac always
2414      lead to jwtype=2 (the default anyway), but the call makes little sense
2415      as a default
2416    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2417    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2418      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2419    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2420    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2421    o extending useSingleCpuIO option to work with new exch2 I/O format
2422      - old-style, missing-tile I/O is still accessible by defining CPP
2423        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2424    o monitor package can write to NetCDF files and/or STDOUT
2425    o fix re-definition bug in MNC_GRID_INIT_ALL()
2426    o doc/api_reference added
2427      - a framework for building an API Reference Manual using all
2428        the "protex" comments embedded in the code
2429      - see pkg/generic_advdiff, pkg/mnc for examples
2430    o MNC:
2431      - make myThid the last argument for all subroutines
2432      - new default for the grid files: NO halos
2433      - add useMNC and other run-time flags
2434      - separate per-file-group handling of the unlimited dimension
2435      - early initialization of MNC w/ flags read at the eeboot stage
2436        and lookup tables set in initialize_fixed
2437      - write all MNC output to a freshly-created directory
2438    o thermodynamics sea-ice (thsice) is now tested with testreport.
2439    o test exp. advect_cs: use the standard cs32 grid ; update output.
2440    o Added functionality to grdchk:
2441      pick global i,j,k position (or nearest wet) where to perform check.
2442    
2443    checkpoint52l_post
2444    o new land formulation:
2445      a) use ground enthalpy as prognostic variable to ensure exact
2446         energy conservation.
2447      b) account for water temperature and for latent heat of freezing
2448         in all processes (rain, run-off, ground storage)
2449      c) compute surface and ground temperature implicitly.
2450    o aim_v23 modification for new land model:
2451      a) Treat separately land / ocean / sea-ice surface fluxes
2452         to allow implicit computation of land & sea-ice surface temp.
2453      b) add snow precipitation.
2454    checkpoint52l_pre
2455    
2456    o fix problem (when 1 tile is empty) in min/max monitor.
2457    o fix bug in timeAve (u,vZetatave in common block)
2458    o no restoring terms under ice for pkg/seaice
2459    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2460    o bug fix for pkg/seaice pickups
2461    o change MNC call locations and add coordinate attributes
2462    o mask vorticity at the corner ; affects global_ocean.cs output
2463    o fix ini_curvilinear_grid ; test CS experiments with mpi
2464    o aim.5l_cs: modify sea-ice fraction input file ; update output
2465    o exf: Adding simple range check routine for exf fields after read
2466    
2467    checkpoint52k_post
2468    o removed top-level directory "diags"
2469      - we migrated these functions to pkg/timeave a long time ago
2470    o fixed bug introduced in pkg/monitor
2471    o accuracy ctrlprec = 32 insuffient for gradient checks using
2472      averaged fields (I/O via cost_averages)
2473      -> use ctrl.h in active_file*.F to control I/O precision.
2474    o paramter list of CALL ADTHE_MAIN_LOOP
2475    o added initial do_the_model_io to ecco
2476    o set all ...Freq to zero after cost_final
2477      taveFreq, dumpFreq, pChkptFreq
2478    o MAIN and ECCO differentiability restored
2479    
2480    checkpoint52j_post
2481    o fix nchklev in tamc.h for global_ocean...
2482    o Bringing flow and store directives up-to-date
2483    o Really weird thing!
2484      call do_the_model_io from the_main_loop with parameters
2485      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2486      TAF places a faulty re-call of initialise_varia
2487      after cost_final call which should not be there!
2488    checkpoint52j_pre
2489    
2490    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2491      error messages
2492    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2493    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2494      debug output
2495    o modfied mdsio_writefield.F to handle non-global files under exch2
2496    o update AIM Cubed-Sphere exp (aim.5l_cs):
2497      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2498    o update AIM Equatorial Channel exp:
2499      use standard aim_v23 pkg and change the SST fields to be more realistic.
2500    o globalFile now works with exch2
2501    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2502      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2503    o limit timeave output for hi-res integrations
2504    
2505    checkpoint52i_post
2506    o removed CPP_EEOPTIONS.h from verification/*/code
2507    o updated the tiling for global_ocean_pressure
2508    checkpoint52i_pre
2509    
2510    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2511      the old pkg/aim).
2512    
2513    checkpoint52h_pre
2514    o shortened offending lines in exch2_send_rx?.template
2515    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2516    o genmake2: add build & execute test for NetCDF code
2517    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2518      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2519    o added useSingleCPUIO flag to monitor.F and mon_out.F
2520    o added temporary hack for sea-ice dynamics on the cube:
2521      metric terms are ignored and it is assumed that
2522      there is no sea-ice on cube faces 1, 2, 4, and 5.
2523    
2524    checkpoint52f_post
2525    o added exch2 cube routines to pkg/exch2
2526    o modified hs94.cs-32x32x5 to use it
2527    o added new grid files to hs94.cs-32x32x5
2528    checkpoint52f_pre
2529    
2530    checkpoint52e_post
2531    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2532      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2533    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2534      to work with implicit vertical advection and AB ;
2535    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2536    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2537     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2538    checkpoint52e_pre
2539    
2540    o fix bug in impldiff when Nr=1 or Nr=2.
2541    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2542    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2543    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2544      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2545    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2546    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2547    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2548    
2549    checkpoint52d_post
2550    o re-tiled many expts to allow comparison in multi-processor mode
2551      - updated output accordingly
2552      - changed hs94.128x64x5 to use intial T from file rather than use the
2553        random number generator
2554    o add infrastructure in model routines for fizhi and gridalt packages
2555    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2556    o changes to permit hi-res, cubed-sphere, configuration
2557      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2558      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2559      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2560        of surface winds for the cube
2561      (A verification experiment, based on global_ocean.cs32x15, but with
2562       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2563       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2564       complete with example surface forcing files and matlab scripts to look
2565       at the output and compare it with that of global_ocean.cs32x15.)
2566    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2567       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2568       to conform to the common rule.
2569    o check-in the first version of the coupler + interfaces for multi-components
2570       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2571       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2572       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2573       - ocean and atmos. share the same horizontal grid (no interpolation).
2574       - exchanges between component and coupler is done in forward_step
2575    o new verification experiment, cpl_aim+ocn:
2576       coupled ocean - AIM atmosphere on cs32 grid.
2577    
2578    checkpoint52d_pre
2579    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2580    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2581    
2582    checkpoint52c_post
2583    o Fixing OPTIONS files for use of exf:
2584      - ALLOW_ECCO not needed
2585      - ECCO_CPPOPTIONS.h should not be included from
2586        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2587        as has been the case in the past
2588      - All cal/exf related options are currently set in
2589        single header file. Should remain so until we
2590        agree on a consistent new policy.
2591    o Removed all CPP options for cal package.
2592      cal has no more CPP options.
2593    o modified STOREs in GAD_ADVECTION
2594    o corrected key comp. for passkey
2595    
2596    checkpoint52b_post
2597    o new version: "thsice" of thermodynamic sea-ice pkg:
2598     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2599     - modify fluxes but do not change theta directly;
2600     - light cleaning of bulk_force pkg (still needed with thsice).
2601     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2602       + output_thsice.txt to test thsice & bulk_force pkgs.
2603    o put back grid & coriolis monitor output.
2604    checkpoint52b_pre
2605    
2606    o call "do_the_model_io" at the beginning (=> dump initial state)
2607    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2608    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2609      (need info on NUMBER_OF_PTRACERS)
2610    o missing PTRACERS headers in some routines
2611    o default tamc.h in pkg/autodiff supposed to crash
2612      to ensure proper customization
2613    
2614    checkpoint52a_post
2615    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2616      - moved surfaceTendencyTice from pkg/seaice to main code
2617      - subroutine FREEZE_SURFACE now limits only surface temperature
2618        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2619        => new output.txt for global_ocean.cs32x15 & global_with_exf
2620      - keep the old version of FREEZE for backward compatibility;
2621        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2622      - corresponding modifs for TAF directives
2623    o added surface flux output variables to TIMEAVE_STATVARS
2624    o time-averaged output for pkg/ptracers
2625    o fix problem with ECCO-related divided adjoint
2626      snapshot file was missing some ad-variables,
2627      but no warning issued by TAF
2628    
2629    checkpoint52a_pre
2630    o some bug fixes for #undef REAL4_IS_SLOW
2631    
2632    checkpoint52 = ecco_c52_e35
2633    o after testing adjoints of checkpoint51u_post
2634    
2635    checkpoint51u_post
2636    o this is the post-merge tag of the ecco-branch
2637      (needs another clean checkout and re-testing)
2638    o various natl_box_adjoint configs and results
2639      but no input fields
2640    o obcs adjoint not yet merged!
2641    o adding ECCO global 1x1 and 2x2 degree configs
2642    o updated/extended some store directives for seaice
2643    o pkg/ecco now containes ecco-specific part of cost function
2644    o top level routines the_main_loop, forward_step
2645      supersede those in model/src/
2646      previous input data.cost now in data.ecco
2647      (new namelist ecco_cost_nml)
2648    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2649    
2650    checkpoint51t_post
2651    o this is the pre-merge tag of the ecco-branch
2652    
2653    checkpoint51s_post
2654    o cleanup: removed various obsolete #define-s
2655    o pkg/grdchk
2656      - renamed 'ph-grd 3' to 'grad-res'
2657      - merged from ecco-branch
2658        (remaining bug fixes for obcs gradient checks)
2659      - additional high-precision output for testreport
2660        (grep for 'precision_grdchk_result')
2661    
2662    checkpoint51r_post
2663    o cleaned up or removed CPP_OPTIONS.h files
2664    o updated results for some of the tests to reflect the new
2665      optfiles (-ieee: -O0 instead of -O3)
2666    
2667    checkpoint51q_post
2668    o cd_code:
2669      - moved cd_scheme.F -> cd_code_scheme.F
2670      - separate read_checkpoint from cd_code_ini_vars.F
2671      - separated cd_code part from write_checkpoint
2672      - updated AD_SOURCE, generated .flow
2673      - added CD_CODE_VARS.h to the_main_loop
2674      - Moving cd_code specific store dir.s to pkg/cd_code
2675    o ctrl package totally restructured
2676      - pack/unpack now optional and decoupled from
2677        xx_/adxx_ I/O
2678      - ctrl_pack/unpack cleaned
2679        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2680      - confined inclusion of AD_CONFIG.h to where necessary.
2681    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2682    
2683    checkpoint51p_post
2684    o create initial cd_code package
2685      - WARNING: the initialization of fields within packages
2686        is broken because INI_FIELDS (where READ_CHECKPOINT is
2687        called) is called *before* PACKAGES_INIT_VARIABLES.
2688        This seems to be backwards since
2689        1) its important to initially zero the entire field including
2690           the "halo" region
2691        2) zeroing needs to be done *before* reading pickup info
2692           and the pickup call might or might not happen in any
2693           particular run
2694      - this needs an overhaul for R2
2695    o cleanup verification/*/code/GMREDI_OPTIONS.h
2696    o cleanup testreport
2697    
2698    checkpoint51o_post
2699    o bringing AD-related verif's up to date with genmake2
2700      - carbon/
2701      - global_ocean.90x40x15/
2702      - hs.94.1x64x5/
2703      - (front_relax/ )
2704    o (more) consistent directory structure for AD-related verif.'s
2705    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2706    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2707    o bug fix in find_alpha.F for MDJWF:
2708      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2709        change rho -> rho-rhoConst
2710      - replace call find_rho to find_rhonum
2711    o initialisation of rFlx extended to full array (required by TAF)
2712      and shifted to thermodynamics
2713    o removed PTRACERS.h in ptracers routine
2714    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2715    o Correcting initialisations for fVerU, fVerV.
2716    o helping TAF to recognize dependency on kUp for
2717      fVerU, fVerV
2718    o Replacing delZ by delR in pkg/ctrl/
2719    checkpoint51o_pre
2720    
2721    o undid all of cp51 pending some cleanups and discussion
2722    o added the [#include "AD_CONFIG.h"] statement to all files that need
2723       it for adjoint/tl #defines
2724     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2725     o removed tools/genmake since it no longer works
2726    
2727    checkpoint51n_post
2728    o modifications to make FREEZE flux visible to pkg/kpp
2729      - moved surfaceTendencyTice from pkg/seaice to main code
2730      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2731      - subroutine FREEZE now limits only surface temperature
2732        (this means new output.txt for global_ocean.90x40x15,
2733         global_ocean.cs32x15, and global_with_exf)
2734    o added surface flux output variables to TIMEAVE_STATVARS
2735    
2736    checkpoint51n_pre
2737    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2738    o added [#include "AD_CONFIG.h"] to all files that use the following
2739      defines:
2740      - ALLOW_ADJOINT_RUN
2741      - ALLOW_TANGENTLINEAR_RUN
2742      - ALLOW_ECCO_OPTIMIZATION
2743    
2744    checkpoint51m_post
2745    o incorporating changes to get TAMC/TAF working in genmake2
2746      - added new TAMC/TAF targets to the Makefile
2747      - various cleanups related to package handling
2748      - these changes should have no impact on the forward model
2749    
2750    checkpoint51l_post
2751    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2752     - faster algorithm for cal_addtime.F
2753     - higher precision arithmetic, where needed
2754     - pkg/exf *startdate variables changed from calendar date to
2755       model integration time
2756    
2757    checkpoint51l_pre
2758    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2759    o enable to apply restoring on S & T only in a latitude band.
2760    o update output (external_forcing_surf modif. change truncation errors)
2761       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2762    
2763    checkpoint51k_post
2764    o change default to: useNHMTerms=.FALSE.
2765     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2766       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2767     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2768        exp1, ideal_2D_oce
2769     - change data file of oceanic exp (leave the results unchanged for now)
2770       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2771    o set gravitySign automatically according to the vertical coordinate used
2772      (and change sign: back to "logical" value: +1 when R increases downward)
2773    o added an include barrier to the default CPP_OPTIONS.h and
2774      removed the #include "PACKAGES_CONFIG.h" from it
2775    o fix a bug in mom_fluxform (from chk51j_post)
2776    
2777    checkpoint51j_post
2778    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2779    o adjusted some flow directives (dynamics, thermodynamics)
2780    o added cubed-sphere case to test cost function
2781    o heckpoint_lev?_directives.h now include
2782      pkg-specific directives, whenever those are enabled.
2783    o Moving pkg-specific flow directives to corresponding pkg
2784      Moving pkg-specific differentiation list to corresponding pkg
2785      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2786      ---> conventions are
2787           - pkg_ad.flow
2788           - pkg_ad_diff.list
2789           - pkg_ad_check_lev?_dir.h
2790    
2791    checkpoint51i_post
2792    o merge of the branch-genmake2
2793      - knowingly breaks the older genmake
2794      - automatic generation of all ALLOW_${PKG_NAME} defines
2795      - new testreport supersedes older testscript
2796    o large number of package inclusion and header cleanups
2797    checkpoint51i_pre
2798    
2799    o new output for adjoin of global ocean vector invariant
2800    o fix for checkpoint of thermodynamic seaice and bulk_force
2801    o Steph gchem various cleanups
2802    
2803    checkpoint 51h_pre
2804    o fixed some single quotes
2805    o modify gchem pkg to be more versatile
2806    o modifications to clean up dic pkg
2807    o add pkg/cfc
2808    
2809    checkpoint51g_post
2810    o provide links for ARPACK and ADM*TLM
2811    o start removing verification/vero/
2812    o update AD-related stuff
2813      (in particular some IF-statements in model/src/ routines)
2814    o adding to verification/global_ocean.90x40x15/ adjoint of
2815      vector invariant setup
2816    
2817    checkpoint51f_post
2818    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2819    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2820      of tracer Green's fucntions for ocean inversion project.
2821    
2822    checkpoint51f_pre
2823    o Added on-the-fly spatial interpolation capability
2824        "USE_EXF_INTERPOLATION" to pkg/exf.
2825      - This is a temporary Cartesian-grid hack until
2826        the super-duper ESMF coupler becomes available.
2827      - See verification/global_with_exf/README for usage example.
2828      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2829        flags and modified pkg/seaice accordingly.
2830    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2831        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2832        non-local transport term.
2833    
2834    checkpoint51e_post
2835    o pkg/mom_vecinv:
2836      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2837      - add time-ave diagnostic of vorticity advection.
2838    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2839    o atmospheric geopotential: - include water vapor effect;
2840                                - use p^kappa in p* scaling.
2841    o land pkg: read initial state from files.
2842    o AIM : add stratospheric drag in the upper level
2843    
2844    checkpoint51d_post
2845    o change function ILNBLNK (=> last non-blank char.) to return zero
2846      (instead of the string length) when the string. char is empty
2847    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2848    o modif's to restore TAMC compatibility
2849      - avoid "_d" constructs in PARAMETER declarations
2850      - avoid interrupting lines by comment lines
2851    o Use cluster local disks for purely local I/O
2852      vs. globally visible disks needed for ctrl stuff
2853      (merged from ecco-branch)
2854      - new active_file_loc... and mdsio_..._loc routines
2855      - affected packages: autodiff, ctrl, grdchk, mdsio
2856    
2857    checkpoint51c_post
2858    o introducing integer flag debugLevel
2859      - debLevZero: suppress all output
2860      - debLevA: standard
2861      - debLevB: equivalent to current debugMode=.TRUE.
2862    o introducing pathname variable mdsioLocalDir for mdsio
2863      that can be specified at runtime
2864      (relevant for cluster I/O to local disk)
2865    `
2866    >>>checkpoint51b_post
2867    adjoint of ptracers
2868    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2869    o extended state in checkpoint_lev?, etc.
2870    o alternative ctrl/cost with tr1 or ptracer
2871    o new comlev1_bibj_ptracers
2872    o new ptracers.flow
2873    o made ptracers_forcing same as external_forcing_s
2874    o added verification for adjoint with ptracers
2875      - adm. grdchk fail so far
2876      - tlm. grdchk OK
2877      - checked tapelev/comlev recomputations: OK
2878    <<<checkpoint51b_pre
2879    
2880    checkpoint51a_post
2881    o added code for biogeochemistry package
2882      - new pkgs: dic, gchem
2883      - new subroutine in ptracers
2884    o modify code for biogeo packages
2885      - in model/src and pkg/ptracers
2886    
2887    checkpoint51
2888    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2889      - autodiff, ctrl, exf, grdchk, seaice
2890      kept separate packages
2891      - cost, ecco, obcs
2892    o updating verification/internal_wave, verification/lab_sea
2893      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2894    
2895    checkpoint50i_post
2896    o Preparing next differentiable checkpoint and sync
2897      of MAIN vs. ecco-branch
2898      - 1st step: this one is differentiable
2899      - 2nd step: next(! not this) checkpoint will have updated packages
2900                  from ecco-branch)
2901    
2902    checkpoint50h_post
2903    o new package "land": provide surface BC for AIM.
2904    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2905    o AIM: use true log-P extrapolation for near surface temp (= as in
2906        F.Molteni paper) ; update aim.5l_cs output.
2907    o New variable in PARM03 for more flexible pickups
2908    o somewhat cleaned package initialisation sequence for
2909      ctrl/ cost/ ecco/ in packages_... routines
2910    
2911    checkpoint50g_post
2912    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2913      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2914      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2915        made the default because of faster convergence than ADI
2916    
2917    checkpoint50f_post
2918    o exf totally restructured
2919      - replaced all exf_set_ routines by one generic exf_set_gen.F
2920        and made sure it's still differentiable
2921      - split exf_getffields.F into new exf_bulkformulae.F
2922      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2923      - updated adjoint/makefile and relevant verif. accordingly
2924    
2925    checkpoint50f_pre
2926     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2927          + change Evap over land. (update aim.5l_cs output)
2928     o added missing .cvsignores and made uniform across expts
2929     o changed configuration of tidal_basin_2d expt
2930     o added pkg/debug functions for tracing code in fatal crashes
2931     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2932     o new fn in pkg/monitor to stop model if solution grows too big
2933     o removed lots of single quotes from comments
2934    
2935    checkpoint50e_post
2936    o make KPP work with PTRACERS
2937     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2938       nearly a copy of kpp_transport_s
2939     - there is no analogue to SurfaceTendencyS, so I have to use
2940       gPtr(of the surface layer) instead
2941    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2942    checkpoint50e_pre
2943    
2944    checkpoint50d_post
2945    o change kpp output from multiple-record state files to single-record state
2946      files analogous to write_state.F
2947    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2948      analogous to the cg2d-related output.
2949    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2950      so that writing to internal file fn (with length 512) fails.
2951    checkpoint50d_pre
2952    
2953    checkpoint50c_post
2954    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2955    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2956    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2957    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2958    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2959    
2960    checkpoint50c_pre
2961    Merging from release1_p13:
2962    o bug fix for pkg/seaice dynamic solver
2963    o Added SEAICE_initialHEFF to pkg/seaice
2964    
2965    checkpoint50b_post
2966    o store u*,v* in gU,V instead of in guNm1,gvNm1
2967    o in order to put the momForcing out of the Adams-Bashforth:
2968      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2969      to timestep.F
2970    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2971    o re-generate output for highly sensitive test-exp:
2972       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2973    
2974    checkpoint50b_pre
2975    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2976    o corrected CPP option mismatch in exf_Bulk... functions for case
2977      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2978    
2979    checkpoint50a_post
2980    o Bug fix for merging between c50 and KPP.
2981      ikey was passed from thermodynamics to kpp_calc via
2982      common block rather than being recomputed in kpp_calc,
2983      in contradiction with new key itdkey.
2984      New key ikppkey created, and tamc.h headers updated.
2985    
2986    checkpoint50
2987    - 2nd step of merge with ecco-branch:
2988      merge changes in ecco-branch back into main trunk
2989    - bug fix in find_alpha
2990    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2991    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2992    - merged some sliced AD support routines
2993    
2994    checkpoint49
2995    merged from ecco-branch:
2996    o exf:
2997      - Enable initialisation of forcing fields to constant
2998        (runtime) values.
2999      - in exf_getffields.F
3000        Reduce i-/j-loop to interior domain, discarding overlaps.
3001        That also fixes wrong TAF-key computations for key_1, key_2
3002        with bulf formulae.
3003      - exf_init.F modify #ifdef for exf_init_evap
3004      - exf_getffieldrec.F, ctrl_getrec.F
3005        The following INT-usages are not safe:
3006          fldsecs  = int(fldsecs/fldperiod)*fldperiod
3007          fldcount = int(fldsecs/fldperiod) + 1
3008        and were modified.
3009    o autodiff: checkpoint_lev...
3010      - updated storing for bulk formulae (some arrays were missing)
3011      - added state for seaice package
3012      - synchronized with main branch
3013    o DIVA:
3014      Modif.s in
3015      - the_main_loop.F
3016      - the_model_main.F
3017      and added cost_final_restore.F cost_final_store.F
3018      o With these changes, it is possible to fully separate
3019        the first forward run to compute the cost function (mdthe_main_loop)
3020        and adjoint runs over individual DIVA intervals (adthe_main_loop)
3021        into separate model executions.
3022        This enables better tuning of DIVA to given queue sizes.
3023      o Loss of cost function value in consecutive DIVA runs is
3024        fixed by storing to 'costfinal' file.
3025      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
3026        beginning/end of adjoint integration is accounted for.
3027      The current changes apply to TAF-1.4.26.
3028      TAF has one remaining bug, requiring one manual change
3029      (see MITgcm manual).
3030    o cal: synchronized between MAIN and ecco-branch
3031    
3032    checkpoint48i_post
3033    o Changes to restore differentiability of code w.r.t. previous tag
3034      (mostly adding new routines to make list and replacing
3035      pressure by totPhiHyd).
3036    o Updated and merged grdchk package
3037      - has both ADM and TLM checks
3038      - works for single- and multi-proc.
3039      - output cleaned
3040      - worked successfully for parallel DIVA
3041    o genmake:
3042      - Adding -platform=SP4
3043      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
3044    o Modif. for DIVA:
3045      ctrl_unpack should not be called in intermediate DIVA interval.
3046      (similar thing would apply for active files such as
3047      tbar, sbar, psbar, which should not be reinitialised;
3048      only relevant for ecco-branch)
3049    
3050    checkpoint48h_post
3051    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
3052    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
3053    o Added SEAICE_initialHEFF to pkg/seaice
3054    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
3055    
3056    checkpoint48g_post
3057    --- EOS:
3058    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
3059      store total Potential in totPhyHyd for diagnostics & EOS.
3060    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
3061    --- Pressure/geopotential gradient:
3062    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
3063    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
3064      ( changes results of global_ocean_pressure )
3065    o NLFS + z-coord.: add eta*Rho' contribution.
3066    o accurate phiHyd when using interface-W at the middle between 2 centers
3067     ( changes results of ideal_2D_oce )
3068    o includes r* 2nd term in potential gradient.
3069    
3070    checkpoint48f_post
3071    Merging from release1_p12:
3072    o Modifications for using pkg/exf with pkg/seaice
3073      - improved description of the various forcing configurations
3074      - added basic radiation bulk formulae to pkg/exf
3075      - units/sign fix for evap computation in exf_getffields.F
3076      - updated verification/global_with_exf/results/output.txt
3077    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
3078      (SBO) core products, including oceanic mass, center-of-mass,
3079      angular, and bottom pressure (see pkg/sbo/README.sbo).
3080    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
3081      to avoid negative values in shallow regions.
3082      - updated verification/natl_box/results/output.txt
3083      - updated verification/lab_sea/results/output.txt
3084    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
3085    o Added useSingleCpuIO option (see PARAMS.h).
3086    o Updated useSingleCpuIO option in mdsio_writefield.F to
3087      work with multi-field files, e.g., for single-file pickup.
3088    o pkg/seaice:
3089      - bug fix in growth.F: QNET for no shortwave case
3090      - added HeffFile for specifying initial sea-ice thickness
3091      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
3092    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
3093      kpp_transport_t.F, forward_step.F, and the_main_loop.F
3094    o pkg/seaice:
3095      - adjoint-friendly modifications
3096      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
3097    
3098    checkpoint48e_post
3099    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
3100    o dynamics: change definition of computational domain & adapt mom_fluxform
3101      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
3102    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
3103        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
3104        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
3105        global_ocean.90x40x15 global_with_exf global_ocean_pressure
3106        inverted_barometer solid-body.cs-32x32x1
3107      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
3108    
3109    checkpoint48d_post
3110    o in preparation for r*:
3111     a) use pre-computed gradient of hydrostatic potential:
3112        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
3113     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
3114        => affects results of glob_oce_pressure (different truncation error)  
3115      update output.txt of ideal_2D_oce & global_ocean_pressure
3116    
3117    checkpoint48d_pre
3118    o in preparation for r*:
3119      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
3120      pass the 2 comp. of the grad. as arguments to momentum S/R.
3121      but for the moment, only used if it does not change the results.
3122    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
3123    
3124    checkpoint48c_post
3125    Modifications in treatment of initial flux forcing controls
3126    to avoid extra storing of flux fields.
3127    
3128    checkpoint48c_pre
3129    o Added tidal_basin_2d experiment (currently 1D!)
3130    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
3131    
3132    checkpoint48b_post
3133    o r* coordinate added in #ifdef NONLIN_FRSURF block.
3134     (modification to pressure gradient not yet implemented)
3135    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
3136      (for U & V) that are used for vertical advection of momentum.
3137    
3138    checkpoint48a_post
3139    o In preparation for r*, use temp. array to compute vertical transport
3140       in flux-form momentum pkg. => change results of few test-exp.
3141      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
3142                        lab_sea, natl_box & plume_on_slope
3143    
3144    checkpoint48
3145    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
3146    
3147    checkpoint47j_post
3148    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
3149    o moved adexch from forward_step to addummy_in_stepping
3150    o added exch in ctrl_map_...
3151    o aveFreq.=0. at end of cost_final to avoid overwrite in
3152      reverse checkpointing loop
3153    o Yet more changes in gmredi:
3154      * adgmredi_calc_tensor
3155        avoiding all recomputation of gmredi_slope_limit
3156      * adgmredi_x/y/rtransport
3157        added flag for excessive storing to avoid recomp. of
3158        u/v/rtans, dTdx/y/z
3159        -> this is not really necessary and very memory-consuming
3160      * adgmredi_slope_psi:
3161        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
3162      * gmredi_slope_limit
3163        re-activated full calculation of taperfct for case 'ac02'
3164    o updating verification/ adjoints of carbon, global_ocean.90x40x15
3165    
3166    checkpoint47i_post
3167    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
3168    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
3169      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
3170    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
3171    o gmredi: fix few bugs.
3172    
3173    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
3174    This will be a good checkpoint to plug into the ecco-branch.
3175    o few modif.'s to get latest version adjointed
3176      (mainly kick out code in ini_linear_phisurf)
3177    o modif's to run adjoint with exactConserv
3178    o case GM_BOLUS_ADVEC should be cleaned
3179      S/R gmredi_slope_psi should be cleaned
3180    o verification/carbon now has exactConserv=.TRUE.
3181    
3182    checkpoint47g_post
3183    o time-average AIM output: becomes independent from statvars time-average
3184      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
3185    o After TAF bug fix:
3186      Tested adjoint of gmredi package.
3187      Tests were done with checkpoint47 rather than with latest
3188      checkpoint47f_post since the latter is broken for the adjoint
3189      verification/carbon/ contains both ADM and TLM gradient checks.
3190    Here they are, before they get changed/lost/stolen.
3191    Mostly modif.'s to fix numerical sensitivities.
3192    Gradient checks OK for
3193    - GM_taper_scheme:
3194      * clipping
3195      * ac02
3196      * linear
3197      * glw91
3198      * dm95
3199      * ldd97
3200    - GMREDI_OPTIONS:
3201      * GM_VISBECK_VARIABLE_K
3202      * GM_NON_UNITY_DIAGONAL
3203      * GM_EXTRA_DIAGONAL
3204      * GM_BOLUS_ADVEC
3205    in conjunction with data.gmredi parameters to be checked in
3206    in a few minutes under verification/carbon/code/
3207    
3208    checkpoint47f_post
3209    Merging from release1_p10:
3210    o modifications for using pkg/exf with pkg/seaice
3211      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
3212        and SEAICE_EXTERNAL_FLUXES
3213      - pkg/exf CPP options EXF_READ_EVAP and
3214        EXF_NO_BULK_COMPUTATIONS
3215      - usage examples are Experiments 8 and 9 in
3216        verification/lab_sea/README
3217      - verification/lab_sea default experiment now uses
3218        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
3219    
3220    checkpoint47e_post
3221    o created a tag prior to creating a branch
3222    
3223    checkpoint47d_post
3224    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
3225      at the bottom boundary had an erroneous half slip boundary condition
3226    o added bottom drag and no slip boundary condition capabilities to
3227      oceanic pressure coordinates code
3228    o added new verification experiment global_ocean_pressure, this experiment is
3229      also described in the tutorial section of the manual
3230    checkpoint47d_pre
3231    
3232    checkpoint47c_post
3233    o Added a verification experiment for a global cubed-sphere ocean run
3234      -  verification/global_ocean.cubed32x32x30
3235      -  uses pkg/therm_seaice and pkg/bulk_forcing
3236    
3237    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
3238    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
3239      when using P-coordinate; only implemented for atmospheric config.
3240    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
3241      NOTES: requires option NONLIN_FRSURF to be "#define".
3242    o update advect_xz/results/output.txt (left from checkpoint44g_post)
3243    
3244    checkpoint47b_post
3245    Merging from release1_p9:
3246    o pkg/seaice
3247      - removed GOTO's and added taf directives
3248      - double precision constants to reduce the g77 (Linux)
3249        to F77 (SGI) differences reported in release1_p8
3250    o tools/genmake
3251      - added SGI options
3252    o verification/testscript
3253      - updated to that of checkpoint47a_post
3254    o verification/global_ocean.90x40x15/input/eedata
3255      - modified for SGI f77 compatibility
3256    o verification/lab_sea
3257      - added description of sea-ice model
3258      - added missing matlab routines
3259      - added test of thermodynamics parallelization
3260    
3261  checkpoint47a_post  checkpoint47a_post
3262  o new pkg: aim_v23  o new pkg: aim_v23
3263   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.

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