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revision 1.75 by jmc, Thu Jun 20 23:52:03 2002 UTC revision 1.1030 by jmc, Thu Oct 16 18:38:55 2008 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
8      does not become too large (to avoid precision problems in implicit-diffusion
9      solver); update ideal_2D_oce output.
10    o pkg ggl90:
11      - in ggl90_cal.F: compute only one set of visc/diff, used to
12        step forward TKE/T/S/momentum
13      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
14        have Prandlt =1)
15    o gmredi(fm07):
16      - add lower limit on Transition layer thickness + lower limit on 1/lambda
17      - allow to set few more params from data.gmredi
18    o pkg ggl90:
19          - add missing sqrt(2) factor in computation of mixing length
20            scale in ggl90_calc.F
21            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
22    
23    checkpoint61d
24    o adjoint modifs
25      - adapt to new field rhoInSitu
26      - allow to revert from StoreDynVars2D, StoreDynVars3D
27        to individual fields
28        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
29    o store 3-D (in-situ) density in commom block (DYNVARS.h)
30     - save 1 rho computation.
31     - no longer modify T & S inland when using down_slope pkg.
32    o gad_som : allow to switch to SOM advection for T & S without corresponding
33      pickup files (using new S/R: MDS_CHECK4FILE).
34    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
35      (for useSingleCpuIO to work in multi-threaded)
36    o pkg/shelfice:
37     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
38       with SHELFICEtopoFile in data.shelfice
39     - move code for reading ice shelf topography and modifying hFacC into separate
40       subroutines of the shelfice package
41     - separate initialisation of "fixed" and "variable" variables
42     - kTopC is not (yet) replaced by kSurfC, although this is possible
43    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
44    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
45      and rename:
46      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
47      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
48    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
49    
50    checkpoint61c
51    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
52      to add mass source/sink of fluid in the interior (3-D generalisation
53      of oceanic real-fresh water flux).
54    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
55    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
56    o new pkg: down_slope
57      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
58      - presently, modify T & S inland (dwnslp_calc_rho.F).
59        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
60      - implementation for ocean in P-coords not tested.
61      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
62    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
63      (to facilitate conversion of oceanic pkg to p-coordinate).
64    o change FIND_RHO to FIND_RHO_2D :
65      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
66    o new pkg: cheapaml
67    
68    checkpoint61b
69    o exch2:
70      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
71      - no longer depend on the order sequence (N,S,E,W).
72      - 3rd exchange no longer needed (tested with 24 tiles).
73      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
74      - exch_UV_A-grid readily available (but not yet tested).
75      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
76      (both are no longer needed) in exch_uv: no effect in forward run; but
77       get truncation error differences with adjoint exch.
78    o exch2:
79     - change index-bounds storage (moved from target to local tile,
80       more intuitive this way) ; rename/remove some variables.
81     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
82    
83    checkpoint61a
84    o exch2/matlab-topology-generator:
85      fix bug in index bounds for N-S internal exchange (hard to tell if this
86      had any effect on the solution).
87    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
88      is exceeded
89    o testreport: modify syntax of awk, so that it works also with
90      awk, and not only with nawk and gawk
91    
92    checkpoint61
93    o autodiff
94      Change default for TAF usage by removing argument '-nonew_arg'
95      This changes TAF subroutine argument list (ordering of active var.)
96      Omission of this flag leads to incompatibility w.r.t. TAMC
97      To restore TAMC-compatibility, need following modifs:
98      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
99      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
100      Tested TAF version is 1.9.22
101      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
102    
103    checkpoint60
104    --->>> This is the last checkpoint for which generating the adjoint
105    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
106    --->>> by default.
107    --->>> Future checkpoints will ommit this flag by default.
108    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
109    o pkg/grdchk: Add gradient check to etan0 perturbations.
110    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
111    o pkg/autodiff: more flexibility in zeroadj.
112      model/src: modifying do_oceanic_phys.F accordingly.
113    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
114    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
115      special setup of gmredi for which the adjoint is stable
116      enough for parameter optimization.
117    o bridging the gap between eddy stress and GM.
118      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
119          along with a change in CPP option (now ALLOW_EDDYPSI).
120      -> when using GM w/ GM_AdvForm:
121          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
122          is applied either in the tracer Eq. or in momentum Eq.
123          depending on data.gmredi (intro. GM_InMomAsStress).
124      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
125      The key modifications are in model/src/taueddy_external_forcing.F
126      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
127    
128    checkpoint59r
129    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
130      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
131      fix option to read coriolis(@ cell-corner) from files with CS-grid.
132    o pkg/mnc: add some attributes to standard 1D-coordinate variables
133    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
134      mass points, when using mnc for output
135      - add runtime parameter (missing_value, missing_value_int) to override
136        default (which is the value of getcon('UNDEF'))
137    o pkg/mnc: prepare mnc for the actual use of missing values with the
138      diagnostics package: small fix in mnc_cw_readwrite.template and more
139      initialisation of never used fields
140      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
141      versions
142    o pkg/thsice/thsice_ini_vars.F added default initial values so that
143      thermodynamics sea ice solver does not blow up when some initial fields
144      are missing.
145    o move from external_forcing_surf.F to ini_forcing.F
146      the p-coord. hack consisting in using pLoad to set phi0surf ;
147      update output of tutorial_global_oce_in_p (affected @ truncation level).
148    o Freshen up a bit hs94.1x64x5, notably:
149      remove rotationPeriod and tRef=5*0. (adjoint only), and add
150      exactConserv=.TRUE.
151    o pkg/generic_advdiff:
152      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
153      applies to files where Temperature & Salinity 2nd Order moments are used.
154    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
155      this uses a dynamically allocated internal state data structure
156      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
157      and requires a fortran 90 compiler
158    
159    checkpoint59q
160    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
161       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
162    o Refresh tutorial_global_oce_biogeo, notably:
163      - change bathymetry (put back seamounts in ACC, use hFacs)
164      - change EOS (POLY3 --> JMD95Z)
165      - use Bryan-Lewis vertical diffusivity
166      - use multidimensional advection
167      - remove old virtual virtual in dic pkg, now done through ptracer pkg
168      - change a couple of parameters in dic pkg
169    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
170    o pkg/obcs: change default to OBCSfixTopo = .true.,
171      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
172      - replace "debugMode" with "debugLevel .GE. debLevB"
173    o implementation of TAF directives for gchem,cfc,dic
174    o remove "exp5" (replaced by tutorial_deep_convection).
175    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
176      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
177      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
178      --> changes results in exp4, seaice_obcs
179    o tutorial_deep_convection :
180      update the set-up and increase resolution and domain size ; start
181      from pseudo initial conditions = output at t=120mn in order to see
182      something happening when running testreport.
183    o pkg/seaice: add os7mp as an advection scheme
184                  add check for advection schemes
185                  add a flag for restoring T and S underneath sea ice
186    o pkg/my82: add netcdf-support and diagnostics
187    o thsice pkg:
188      - Now hsMax limits snow height by turning it into ice following
189        flooding scheme (and now conserving energy)
190      - Slight rewriting of the formula in thsice_calc_thick.F
191      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
192      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
193    
194    checkpoint59p
195    o gchem / dic / cfc :
196      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
197      - add new parameter files: "data.dic" & "data.cfc" ;
198      - various re-arrangement in initialisation & header file ;
199      - fix tutorial_global_oce_biogeo for multi-threaded test.
200    o pkg/dic: test for "pickup_dic" file when restarting ;
201      if no pickup-file, can restart with a re-initialised pH (same as it did
202      before) providing pickupStrictlyMatch is set to False.
203    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
204      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
205    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
206      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
207    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
208     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
209       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
210    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
211       scheme to use for vorticty-term ;
212     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
213       (with default selectVortScheme, return to original discretisation)
214     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
215    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
216    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
217      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
218      also fix diagnostics VISCAHW & VISCA4W.
219    
220    checkpoint59o
221    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
222    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
223      move a few statemens out the main loop into separate loops
224    o pkg/shelfice:
225      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
226        (kg/m^2/s), does not break tests, because in verification/isomip,
227        rhoConstFresh=rhoConst (by accident)
228      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
229      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
230        new file model/src/seawater.F, so that they are available for all pkgs.
231      - convert potential temperature into in-situ temperature. This changes the
232        isomip tests => update tests
233    o add a flag writePickupAtEnd (default=true) to be able to suppress
234      writing a pickup at the last timestep
235    o tools/mpack-1.6 :
236      - disable automake (not working) and autoconf (not needed).
237      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
238        also cleaner with much less compilation warnings.
239    o pkg/profiles:
240      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
241      (for "less than 32 characters name" compiler requirement)
242    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
243      conditions that have a different sampling frequency than S/T/U/V obcs
244    o pkg/diagnostics (stats-diags):
245      - fix global Min/Max in case 1 processor get only empty tiles
246    o genmake2: replace (4 times)
247         make genmake_tc_1.o >> genmake_warnings 2>&1
248      with
249         COMM="$CC $CFLAGS -c genmake_tc_1.c"
250         echo $COMM >> genmake_warnings
251         $COMM >> genmake_warnings 2>&1
252      to make genmake2 always see the value of CC as specified in the optfile.
253    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
254      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
255      - modify verification advect_cs test to test SOM-advection on CS-grid.
256    o pkg/ctrl:
257      - Rewrite of ctrl_map_ini_ecco.F,
258        introducing a generic routine (ctrl_map_ini_gen.F).
259      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
260    
261    checkpoint59n
262    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
263      number in dedicate array "hdiag":
264      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
265        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
266      - many small changes (integer format) for large number of diagnostics
267      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
268        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
269    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
270      usingSphericalGrid, this allows to define the rotated grid coordinates
271      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
272      geographical coordinates according to the inverse of the rotation defined
273      by the Euler angles, so that Coriolis parameter and online-interpolation by
274      exf works with the geographical coordinates on XC/YC/XG/YG.
275      Naturally, this feature does not work with all packages, so some
276      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
277      profiles), because there the coordinates are assumed to be regular
278      spherical grid coordinates.
279    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
280      - introduce isopycnal diffusion coefficient control.
281    o tools/adjoint_options:
282      - additional control vector components.
283    o pkg/mnc: have mnc create marginally meaning full coordinate variables
284      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
285    o pkg/mypackage:
286      - add example of read/write pickup for state-var ;
287      - add entry points to the main code for state-vars diags & write-pickup.
288    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
289      transitions for useExfYearlyFields
290      - add new subroutine that determines the file to read from for
291        use*YearlyFields = .TRUE. and .FALSE.
292      - add a verification experiment to global_with_exf that tests
293        useExfYearlyFields with USE_EXF_INTERPOLATION defined
294    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
295      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
296      subroutines (which could be generated from a template, because they are
297      almost identical), for now they are included in obcs_prescribe_read.F for
298      simplicity
299    o pkg/exf:
300      - add a little more diagnostic to exf_interp_read (in analogy to
301        mds_read_field, can be turned off with debugLevel < debugLevA=1)
302      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
303        ugly but fast by unrolling short inner loops, inserting a unroll=8
304        directive in routine lagran, and splitting a loop and making do while the
305        outermost loop (the latter requires the intoduction of index arrays)
306    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
307    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
308      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
309    o verification/seaice_obcs: updated for restart test and latest options
310    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
311      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
312      for now this is only available for the C-grid code and also within
313      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
314    
315    checkpoint59m
316    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
317      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
318    o gad_som : fix flux output (& diagnostics) to have same units as other  
319      advection scheme fluxes (was previously multiplied by deltaT).  
320    o added verification/seaice_obcs both to test seaice open boundaries
321      and to provide an example matlab scrpt for generating them
322    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
323    o pkg/salt_plume: clean up salt_plume_frac.F to
324      remove redundancy in PlumeMethod 1 and 4
325    o pkg/kpp: added saltplume diagnostics
326    o pkg/obcs and pkg/seaice:
327      - do not set uice and vice to zero when OB*icefile are unspecified
328      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
329      - moved seaice tracer obcs after call to seaice_growth
330    o pkg/salt_plume: added various options for salt plume depth
331      criterion and for vertical distribution of the salt
332    
333    checkpoint59l
334    o pkg/ptracers: new version of ptracers pickup:
335      read meta file and write only fields which are needed to restart.
336      ( same logic as main pickup file ; also using pickupStrictlyMatch )
337    o pkg/seaice:
338      - add timescale for melting due to warm mixed layer as a means of
339        setting SEAICE_availHeatFrac more conveniently
340      - add a CPP-flag/runtime parameter check for flooding algorithm
341      - reformulated availHeat in seaice_growth.F to be independent of AREA
342    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
343      unit changes
344    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
345    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
346      SX vector computer.
347    o pkg/seaice:
348      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
349        seaice forcing fields can now be read only through pkg/exf
350      - removed some unused halos
351    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
352    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
353      or U/VICE from U/VWIND before computing U/VSTRESS
354    
355    checkpoint59k
356    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
357      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
358    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
359      all experiments pass when compile with un-initialised var. checking option.
360    o added pkg/salt_plume
361    o script to test restart (for now, in MITgcm_contrib/jmc_script)
362    o pkg/seaice: new read/write pickup version.
363      read meta file and write only fields which are needed to restart.
364      ( same logic as main pickup file ; also using pickupStrictlyMatch )
365    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
366    o lab_sea.hb87: modify the domain & update output.hb87.txt :
367      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
368      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
369      process. Fixed here by closing the domain at the Northern boundary.
370    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
371    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
372      a set of consecutive levels in/from a 3-D array.
373    o pkg/ptracers:
374      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
375      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
376    
377    checkpoint59j
378    o in pkgs: dic, obcs, offline, rbcs:
379      standard way to compute coeff. for time interpolation between 2 time reccords
380      which retains full precision (& make results less dependent on compiler).
381      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
382    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
383      packages instead of reading ice cover and wind speed separately
384    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
385     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
386      to allow to compile customized code before the update)
387    o cleaning-up:
388      - fix CPP instruction syntax in pkg/obcs
389      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
390        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
391      - fix some threads issue in IO parts.
392    o pkg/dic:
393      - add tons of "_d 0" (--> much better testreports !)
394       and then update outputs of tutorial_global_oce_biogeo
395    o pkg/mom_fluxform:
396      add a special version of momentum advection intended to conserve momentum
397      next to a bathymetry step or a coastline edge. (default = off = #undef)
398    o new read/write pickup version:
399      - for now, only implemented for main (mdsio) pickup file.
400      - write out only what is needed to restart; merge pickup_nh , pickup_ph
401        and main pickup together.
402      - read meta file; read only what is needed to restart; stop if a field
403        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
404        if it make sense (even if the restart is not perfect).
405      - if no meta file, assume that pickup to read corresponds exactly to
406        a pickup that would currently be written.
407      - read pickup written in the old format (until checkpoint59i) if it
408        recognizes an old meta file (no field-list).
409      - add a meta file in exp. which starts from a pickup: 2 cases:
410        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
411         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
412        b) a meta file describing the content of the associated pickup file
413         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
414    o pkg/mdsio & pkg/rw:
415      - new routine to read a meta file ; new set of routine to read
416        Multiple-fields file (with meta file).
417    o added open boundary conditions capability for seaice
418        HSNOW, HSALT, UICE, and VICE
419    
420    checkpoint59i
421    o adjoint:
422      * fix multiDimAdvection adjoint
423        (partial recomputation problem by TAF for fVerT(:,:,kDown)
424        and comlev1 size definition (maxpass vs. max. number of tracers)
425      * verification/global_ocean.90x45x15 adjoint now tests
426        NLFS and multiDimAdvection using DST3 (=30)
427      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
428    o pkg/kpp: add "_d 0" to real constant (if missing);
429      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
430      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
431    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
432      for internal parameters related to restart process (formerly from PARAMS.h)
433      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
434    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
435      as argument. (only atm2d & obcs write_pickup have not yet been updated)
436    o pkg/monitor:
437      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
438      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
439      - account for deep Atmosphere factor and density factor (anelastic)
440    o added open boundary conditions capability for seaice HEFF and AREA
441    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
442      thermodynamics
443      - requires a little reorganization, which affects the testreport results
444        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
445        so that now the conservative form is tested
446      - add a few comments
447    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
448    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
449    o add new diagnostics to seaice: advective, diffusive fluxes (only for
450      multidim-advection, for scheme 2 they are not filled) and transports,
451      thermodynamic growth rates
452    o change units of EmPmR (inside the code, + within coupling interface)
453      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
454      Affects results @ truncation level (cg2d match) and update output of
455       experiments: lab_sea(6), global_ocean.90x40x15(10),
456      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
457      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
458      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
459      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
460    
461    checkpoint59h
462    o pkg/exf:
463      - improve vectorization by moving if-statement out of loops in
464        exf_mapfields, exf_radiation
465      - exf_bulkformulae.F: introduce 2D fields and vectorize code
466    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
467    o testreport:
468      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
469        monitor & update offline_exf_seaice exp. output.
470      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
471    o pkg/seaice:
472      - bug fix in the evp solver: boundary conditions were affected be
473        masking of zMax/zMin (changes results)
474      - minor bug fix in boundary conditions in seaice_calc_strainrates
475        (changes results for no_slip)
476      - seaice_lsr.F: make interpolation of eta dependent on boundaries
477      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
478      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
479        stress formulation and no-slip boundary conditions
480    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
481      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
482    o pkg/seaice: a first HSALT time stepping equation has been checked in
483    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
484      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
485      without requiring DO-IF statements
486    o pkg/thsice:
487      use continuous power-law function for partition of energy between lateral
488      melting/freezing and thinning/thickening ; old code using step function
489      still available with #undef THSICE_FRACEN_POWERLAW
490      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
491    o testreport: change AD testing : check against results/output_adm.txt
492      using same scripts as for forward test.
493    
494    checkpoint59g
495    o adjoint testing: in preparation for changing testreport:
496      - output format: cost and grad written on separated lines
497      - ad output results in directory "results" (instead of "results_ad")
498    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
499    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
500    o pkg/ecco: allow user defined cost function contributions
501    o testreport:
502      Allow to choose (per experiment) the list of tested output variables
503       and the main variable (used to issue a pass/FAIL ) ;
504      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
505      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
506      Also modify printing of summary:
507       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
508       b) echo the list of tested variables in the individual summary.txt of
509          each experiment.
510    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
511      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
512      (but still depend on the tile decompostion of the domain).
513    o pkg/seaice: change a discretization detail to make the B-grid code
514      "more symmetric". This change is likely to remove all "ridges/leads" that
515      where quasi-aligned with the grid in B-grid solutions. It may also be
516      the solution to the stress coupling issues with the B-grid.
517    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
518      remove .cvsignore from input dir. (since testreport no longer run here).
519    o pkg/thsice:
520     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
521     - fix reshaping of sea-ice just after advection:
522       melt all the ice only if ice-volume is too small.
523     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
524       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
525     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
526    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
527      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
528    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
529      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
530      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
531      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
532      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
533      -> update output.txt
534    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
535     this affects truncation error: -> update output.txt of exp:
536      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
537      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
538    
539    checkpoint59f
540    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
541    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
542      a bounded range (in forward mode)
543    o pkg/ecco, ctrl, autodiff and mom_common:
544     internal parameter controls, completements of implementations
545    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
546    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
547      (not seem any difference in testing results).
548    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
549       at face corners.
550    o pkg/generic_advdiff:
551     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
552      loop range indices for computing vertical advection tendency
553      and do the calculation in the interior only (no overlap) ;
554      for now, only implemented for SOM advection (to save CPU time).
555     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
556    o exch2 adjoint
557      First set of changes:
558      - add exch2 hand-written adjoint templates
559      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
560        This will require cleanup in pkg/autodiff/*.F
561        (changed routines currently kept separate in verif. code/)
562      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
563        that used to hide exch2 or cubed-sphere specific code
564        (commented via 'cph-exch2')
565    o pkg/seaice
566      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
567    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
568       output of global_ocean.cs32x15.thsice .
569    
570    checkpoint59e
571    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
572      for B-grid vector (not yet tested) and C-grid vector (<- only used
573      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
574    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
575      (#ifdef ALLOW_SALT_PLUME)
576    o gather_2d/scatter_2d: removed halo regions
577    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
578      scheme and the corresponding test case (under front_relax dir). For now,
579      only available with Skew-flux form and not yet tested in realistic set-up.
580      adjoint: store directives updated, but gradient checks deteriorated,
581      so maybe GM/Redi adjoint is now broken.
582    o seaice adjoint
583      * add AREA, HEFF, HSNOW as control variable
584        (should not change lab_sea results)
585      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
586    o pkg/seaice:
587      * added computation of saltFlux in seaice_growth;
588        For time being, sea ice salinity is assumed constant
589        contribution of snow flooding to freshening of sea ice is neglected.
590        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
591        defaults to 0.0 in order to maintain backward compatibility.
592        Typical values for SEAICE_salinity are 4 to 10 g/kg.
593      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
594      * added SEAICE_availHeatFrac, which specifies fraction of surface level
595        heat content used to melt or grow ice
596      * commented out cap of HICE: it helps keep ice thinner
597      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
598      * applied OBCS T/S mask to HEFFM sea ice mask
599    
600    checkpoint59d
601    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
602     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
603     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
604    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
605     and change default value of parameter "GM_Small_Number";
606     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
607       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
608       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
609    o pkg/ecco: cost function when applying pkg/smooth to controls
610    o pkg/ctrl: add forcingPrecond run time parameter
611    o pkg/seaice:
612     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
613     - fix bug in metric terms of u-equation in LSR solver (implicit part),
614       changes verification/lab_sea
615     - rearrange implicit part of u-equation in LSR solver to make it easier to
616       read, understand, and debug. This causes changes at the truncation level.
617     - fix (serious) bug in the boundary conditions (sign error in the implicit
618       part) of the LSR solver. Changes all LSR results.
619     - fixed problem with HSNOW initialization to avoid thick snow when AREA
620       is initilized with small values - does not change lab_sea results.
621     - added HsnowFile initialization capability
622    o pkg/smooth: addition to model/src and pkg/ctrl so allow
623     initialization of pkg/smooth and application to control vector
624    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
625    o dependencies: pkg/profiles requires pkg/cal
626    o pkg/profiles:
627     - added option ALLOW_PROFILES_GENERICGRID
628         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
629         that interpolation information (grid points and coefficients) is provided
630         within the netcdf input files.
631         -> sample matlab scripts can be found in MITgcm_contrib/gael
632         that allow you to prepare netcdf input files.
633     - also modified: cleaner include statements, cleaner error print statements,
634       cleaner stops when error, and more tests of the netcdf input files consistency.
635    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
636    o pkg/seaice:
637     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
638       requires a new routine: seaice_diagnostics_fill.F
639     - make sure that seaice does not move if not forced (pressure replacement
640       method, Hibler and Ip, 1995), changes results
641     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
642     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
643       It is turned off by default (=-1.), because it changes the results.
644     - make it possible to read AREA from a file, too.
645    
646    checkpoint59c
647    o add S/R and diagnostics for oceanic mixed-layer depth
648    o move GMRedi call after all vertical mixing schemes (including KPP)
649    o pkg/thsice:
650     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
651      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
652    o pkg/obcs:
653     - bug fix for balance code
654    o pkg/seaice:
655      - allow values of SEAICE_elasticParm > 1
656      - add new parameter SEAICE_evpTauRelax as an alternative
657        to SEAICE_elasticParm
658      - make lsr boundary conditions free slip (by default), changes result
659      - add code for no slip boundary conditions for lsr
660      - set minimum of zeta to zero (and not 4e8) (changes results)
661      - add a cap on AREA after advecting AREA if seaice_growth is not called
662    o change calculation of Visbeck K:
663      - no longer depend on tapering scheme; instead, compute slope (limited
664        by GM_maxSlope). this is equivalent to what was comuted before with
665        clipping or linear tappering.
666      - fix vertical averaging (wrong by 1/2 level)
667      - leave the old version (but will not be maintained) within
668        #ifdef OLD_VISBECK_CALC / #endif
669      - update output of exp. ideal_2D_oce
670    o change error catch in calc_r_star to improve vectorization
671    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
672      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
673    o adjoint:
674      Re-organized adjoint checkpointing according to Matt Mazloff
675      (but with modifs/completions/cleanups)
676      Storing is now bundled into large arrays to optimized I/O
677      (and second step in cleanup of the_main_loop)
678    
679    checkpoint59b
680    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
681      - export/import (between ocean & coupler) fields needed for ocean DIC.
682    o pkg/seaice:
683      - get rid of three more exchanges seaice_calc_viscosities (required
684        different loop boundaries in seaice_lsr and seaice_ocean_stress)
685      - bug fix in seaice_ocean_stress (update of lab_sea required)
686      - reduce loop boundaries to necessary minimum also in seaice_evp
687      - go back to the old way of computing deltaC/Z as the adjoint likes that
688        better
689    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
690      passive tracer to an Age Tracer) + update output.txt
691    o pkg/exf:
692      - implement A-grid / C-grid selection for wind-stress input files.
693      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
694      for now, in exf_bulk_largeyeager04.F only :
695      - change implementation for case where windspeed + 2. components wind-stress
696        are read-in. AND use rhoConstFresh to convert evap.
697    o pkg/seaice:
698      - use correct EXCH_UV for wind-forcing (on A-grid).
699      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
700        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
701    o pkg/exf:
702      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
703      EXF_INTERPOLATION:
704      - merge global_with_exf/code version of exf_interp_read.F
705        to the main code ;
706      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
707        reading the file ; Important: This options needs to be defined to recover
708        previous code.
709        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
710      - no longer loose real*8 precision along the way when using exf_iprec=64.
711    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
712      - change discretisation of evp-solver in order to avoid another exchange
713        (changes lab_sea) and clean up a little
714      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
715        help the adjoint (this also changes the results slightly)
716      - add a few "_d 0" where they had been missing in seaice_evp.F
717      - cleaning up: remove unused seaice_calc_rhs.F
718    o pkg/exf: some cleaning-up:
719      - change various "constants" into runtime parameters
720      - cleaned-up Large&Yeager04 routine which should eventually
721        replace exf_bulkformulae.F (changed names of S/R and CPP)
722        and merged various ALLOW_ATM_WIND options
723     only used with thsice pkg (in thsice_get_exf.F):
724      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
725        which are used when useStabilityFct_overIce=TRUE (= the default)
726      - change default values of ice & snow emissivity and scale downward LW
727        by ice & snow emissivity.
728    o pkg/thsice:
729     fix few little problems, in thsice_calc_thickn.F:
730      - growth vertically (and not laterally) if iceFrac == iceMaskMax
731      - melt only laterally if hIce < hThinIce (as the comments say)
732      and in thsice_extend.F:
733      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
734      - start to form ice as soon as the minimum ice-volume is reachable.
735     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
736      and cpl_aim+ocn
737    o pkg/kpp
738     - move computation of surface related input fields to KPP into a new
739       subroutine kpp_forcing_surf.F
740     - remove wrong (within bi,bj loops) EXCH calls.
741     - little cleaning (add argument myThid in last position, cvs header ...)
742     - for now, fix conservation problem by exchanging KPPviscAz (may not
743       be the best fix)
744    o pkg/seaice
745     - check for inconsistent evp parameter/cpp-flag combination
746     - remove leftover errIO flat for obsolete name list error handling
747    o OpenAD
748     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
749    
750    checkpoint59a
751    o pkg/seaice: some parameter clarifications and a little bit of clean up
752    o pkg/thsice: rename run-time parameters:
753       himin       -> hIceMin
754       himin0      -> hThinIce
755       hihig       -> hThickIce
756       i0          -> i0swFrac
757       transCoef   -> bMeltCoef
758       frac_energy -> fracMelting
759      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
760       with default values (for now) that do not change the results.
761      remove old version of thsice vars advection in pkg/seaice.
762    o in FFIELDS.h:
763      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
764      - make pLoad & sIceLoad always available (but still only used if
765         ATMOSPHERIC_LOADING is #define).
766    o pkg/kpp: replaced _KPP_RL with _RL
767    o bug fixes for vertical diffusivity computations when both KPP and
768        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
769        are no longer updating the vertical diffusivity array
770        (passed as argument) but are (re-) setting those arrays.
771    o pkg/seaice: fix bug in evp solver, while doing that
772      - change (improve?) discretization of stress computations for both
773        cgrid-lsr and evp solver
774      - add a new routine to compute strain rates
775      - the above changes lab_sea results
776      - add no slip conditions for evp solver (off by default), lsr-version
777        may follow
778      - fix exchange for shear at Z-points (does not change lab_sea)
779      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
780        (to force the user to pick a time step since there is not "safe" way
781        of choosing it)
782      - add principal stress diagnostics
783      - rearrange fields for evp a little to avoid having to call a: too many
784        exchanges and b: exchanges for stress trensor components which we do
785        not have.
786      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
787        of evp, complete rewrite for lsr case (latter is does not yet work
788        in all cases)
789    o pkg/kpp: add code to have mixing in shelf ice caverns
790      - add myThid to all kpp routines (long overdue)
791    
792    checkpoint59
793    o pkg/exf:
794      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
795        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
796      - move exf header files from lower_case.h to UPPER_CASE.h ;
797        add missing cvs Header & Name
798      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
799      - add namelist param. selectStressGridPosition, exf_monFreq
800      - retire many _CLIM routines, and remove data.exf_clim
801        + params moved to data.exf
802        + climsst, climsss now handled by exf_set_gen, i.e.
803          climss?period=0 refers to constant field,
804          climss?period=-12 to monthly forcing
805      - split up namelists in data.exf
806    o pkg/seaice:
807      - remove seaice_exch and seaice_exch_uv
808      - remove superfluous exchange of theta
809      - add myThid to seaice_budget_ocean/ice
810      - add new interface for atmospheric wind forcing (C-grid only)
811        + new routine
812        + two new field (taux, tauy for stress over ice)
813        + removed one global field (DAIRN) for C-grid case only
814    o pkg/thsise
815      - 2nd set of modifs for thsice adjoint in conjunction with exf
816    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
817    
818    checkpoint58y_post
819    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
820      vertical diffusivity, similar to that in MOM4; turned on using
821      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
822      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
823    o Added capability for 3D specification of background vertical diffusion
824      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
825      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
826      "data" file that contains the 3D vertical diffusivity coefficients.
827    o ice dynamics (pkg/seaice) with thsice thermodynamics:
828      - add code within pkg thsice to advect & diffuse sea-ice fields
829      similar to (and will replace) what has been added in  seaice_advdiff.F,
830      but: - conserving Mass, Heat & Salt.
831           - better when using non-linear advection scheme (not yet fully tested)
832           - can also be used in atmospheric set-up (for now, only the diffusion).
833    
834    checkpoint58x_post
835    o IO option for global-file compact format:
836      - add options when generating topology (utils/exch2/matlab-topology-generator)
837      - add I/O capability (pkg/mdsio).
838      - adapt utils/matlab/rdmds.m to read this format.
839      for now long-line format not yet supported by pkg/mdsio (& exch2).
840    o shelfice: add a few diagnostics
841    
842    checkpoint58w_post
843    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
844      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
845      (and replace horiVertRatio in NH code).
846      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
847                         and tutorial_plume_on_slope (sensitive to truncation)
848    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
849      directly to drive seaice model (C-grid only)
850    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
851     - reintroduce computation of wind from stress,
852     - compute tau (in exf_bulkformulae.F) from windstress averaged to
853       mass points to avoid tau = 0
854     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
855    o rdmnc.m: make it work with "global" files created with gluemnc
856    o rdmnc.m : some improvements in dealing with singleton dimension
857      (tested on all testreport mnc output files).
858    o genmake2: disable pkg/profiles if netcdf test fails.
859    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
860    o move call to cal_readparms up to make calendar parameters/variable available
861      to all packages
862    
863    checkpoint58v_post
864    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
865      useDynP_inEos_Zc tested.
866    o pkg/exf: changes to properly interpolate/mask/scale initial fields
867    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
868      and portions thereof.  See read_cs.txt for description and examples.
869    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
870      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
871      following the great-circle arc between those 2 points.
872    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
873      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
874    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
875     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
876     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
877     - still needs work (not working with some options ; efficiency to improve)
878       and serious testing.
879     - use this scheme for temperature & salinity in 2 advection test exp.:
880       advect_xy & advect_xz, respectively.
881    
882    checkpoint58u_post
883    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
884    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
885    o testreport: add option "-skipdir" to skip some test.
886    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
887      momentum calculation.
888    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
889    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
890      remove checkpoint.F and the_correction_step.F (no longer used);
891      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
892    o add option (linFSConserveTr) to correct for tracer source/sink due to
893      Linear Free surface
894    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
895    o pkg/thsice: fix reading mnc-pickups
896    
897    checkpoint58t_post
898    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
899    o pkg/mdsio:
900     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
901       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
902       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
903     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
904     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
905       either MDS_READ_FIELD or MDS_WRITE_FIELD )
906     - new S/R (to replace MDSWRITEMETA), which allows to write more
907       informations (variable names, time ...) to meta files.
908     - modify rdmds.m to give back the meta file content.
909    o pkg/diagnostics: change vertical interpolation to be safer, and more
910       flexible (define p-levels to interpolate to in data.diagnostics);
911      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
912       diagnostic pointer.
913    o pkg/seaice: more cleaning up of seaice_growth, added many comments
914    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
915    o fix multi-category seaice:
916     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
917       SEAICE_MULTICATEGORY
918     - fix short wave heat flux
919    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
920       and allow to use EVP solver. Change forward lab_sea: test both EVP
921       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
922    o Initial check-in of lab_sea adjoint
923      (very similar to natl_box_adjoint/code_seaice)
924      * used C-grid and EVP solver
925      * used KPP, GM/Redi
926      * uses inAdExact=.TRUE.
927      * gradient checks fail for both ADM and TLM
928        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
929        f.d. gradients actually seem more problematic than ADM, TLM gradients;
930        issue is related to forward mismatch between g77 an ifort
931    o pkg/seaice: overhaul of thermodynamics
932     - growth.F and groatb.F are replaced by new routine seaice_growth.F
933     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
934     - move a few global fields out of SEAICE.h into seaice_growth.F and
935       make them 2D (FICE/QNETO/ ...)
936     - remove FO (it is the same as QNETO)
937     - introduce a few local fields to avoid modifying external fields such
938       as atemp, etc.
939    
940    checkpoint58s_post
941    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
942      changed exf_set_gen.F so that
943        genperiod=0 means input file is one time-constant field and
944        genperiod=-12 means input file contains 12 monthly means
945    o CG2D: use pre-computed solver main-diagonal (stored in common block);
946      this affects truncation error ; generate new output file for exp. which
947      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
948        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
949        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
950        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
951        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
952        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
953    o start implementation of deep-atmosphere and anelastic formulation
954    o verification: remove 2nd copy of input files and use script "prepare_run"
955      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
956    o mom_common/vecinv/fluxform: fix a few initialisation isssues
957    o profiles: fix for multithreaded case
958    
959    o diagnostics: rename few diags:
960      s/'PRESSURE'/'RCENTER '/g
961      s/'TICE    '/'oceFreez'/g
962      s/'TAUX    '/'oceTAUX '/g
963      s/'TAUY    '/'oceTAUY '/g
964      s/'SWFLUX  '/'oceQsw  '/g
965      s/DIFx/DFxE/g
966      s/DIFy/DFyE/g
967      and add few ocean-forcing diagnostics:
968      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
969    o modifications to pkg/seaice/growth.F and budget.F, which change results of
970      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
971      as actual snow thickness.  It now refers everywhere to effective snow
972      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
973    
974    checkpoint58r_post
975    o modifications to pkg/seaice/growth.F, which change results of
976      lab_sea experiment: fixes pertain to melting snow over open water, to
977      masking EVAP under sea ice, and to using the correct AREA variable for
978      computations of EVAP, PRECIP, HSNOW, and GHEFF
979    o add ability to read bathy, salt, and theta using MNC (off by def)
980    o add flooding algorithm and advection of HSNOW for pkg/seaice;
981      both are turned off by default and do no change any results
982    o seaice advection with pkg/thsice: a step toward the use of non-linear
983      advection scheme, but #ifdef or commented out for now (requires more EXCH).
984    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
985      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
986      in natl_box (affects results @ truncation level: update output.txt)
987    o multi-threading and IO:
988      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
989      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
990        (needed to work with SingleCpuIO): tested in all verif. exp.
991    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
992      affects the results (but none of the verification test uses this scheme).
993    o Adding some pkg/diagnostics capability to pkg/seaice
994      (will certainly be subject to changes)
995    o ctrl: adding new control variables:
996      lwflux, lwdown, evap, snowprecip, apressure, runoff
997    
998    checkpoint58q_post
999    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1000      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1001      high_res_cube configuration by 4% on Columbia.
1002    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1003      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1004      dynamical allocation (seems to work in multi-threaded).
1005    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1006      single CPU io) so that TAF does not have to see EESUPPORT.h
1007    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1008    
1009    checkpoint58p_post
1010    o obcs: stop if obcs is used with useCDscheme = .true.
1011    o shelfice:
1012     - fix a sign error so that no slip at shelfice interface works
1013     - remove stop for combination non-hydrostatic code and shelfice. That does
1014       not mean, that the results are correct, but at least they are numerically
1015       stable
1016    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1017    o added adjoint exch routined for all exch*3d* routines
1018      and updated flow directives
1019    
1020    checkpoint58o_post
1021    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1022      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1023    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1024      and clean-up reading/writing of pickup files.
1025    o fix local version of read/write pickup (NH part) in rotating_tank/code
1026    o simplify EXCH interface:
1027     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1028     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1029    o added the regrid package
1030    o shelfice:
1031     - add a simple boundary layer scheme to reduce noise
1032     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1033    
1034    checkpoint58n_post
1035    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1036       local variable (not in common block).
1037    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1038      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1039      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1040        to work with SingleCpuIO.
1041    o add "_d 0" to real constant of pkg/cfc subroutines ;
1042       update exp. cfc_exemple & tutorial_cfc_offline output files.
1043    o multi-threading and IO:
1044      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1045        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1046      - barrier before and after reading.
1047      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1048      - avoid using MDS_WRITELOCAL for LAND pkg output.
1049      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1050        common-block variables ; Allows multi-threading with master-thread IO.
1051    o change default MAX_NO_THREADS from 32 to 4 ;
1052      and stop cleanly when MAX_NO_THREADS is too small.
1053    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1054    
1055    checkpoint58m_post
1056    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1057       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1058    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1059       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1060       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1061    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1062        add MITgcm_tutorials (= code + all the tutorials)
1063    o ecco, option to compute cost for total ssh (mean+anom)
1064    o consistent with addition of ptracer and ssh in pkg/profiles
1065    o profiles: adding ptracer and ssh
1066    o testreport: change multi-test output-file name
1067      (from output.txt.{name} to output.{name}.txt)
1068    o profiles: now ok for mutli-tiles case
1069    o seaice: add 4 parameters for different advection schemes for area,
1070      (effective) seaice thickness, enthalphy, and snow height. Their default
1071      is the standard parameter SEAICEadvScheme
1072    o calc_gw:
1073     - add cosFacU in zonal viscous flux (harmonic.visc.).
1074     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1075       of tutorial_plume_on_slope.
1076    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1077    o calc_gw: true flux-form, account for horizontal grid spacing.
1078      update rotating_tank results, but not plume_on_slope (affected at
1079      truncation level, 11 digits).
1080    
1081    checkpoint58l_post
1082    o calc_gw:
1083     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1084     - remove side-drag for now (need to fix it); update plume_on_slope results.
1085     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1086    o commit code to make SST/SSS weights spatially variable
1087      (based on either variable in-situ or variable initial T/S weights)
1088    o pkg/ecco:
1089      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1090        now based on horizontally varying weights wthetaLev, wsaltLev
1091      * cost_averagesflags now returns year indices in addition to day, month
1092      * sflux balance is performed on annual basis
1093        (sflxumm, sfluxmm2, bal_sfluxmm)
1094      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1095        including separate counting and multipliers
1096    o pkg/rbcs
1097      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1098    
1099    checkpoint58k_post
1100    o testreport:
1101     - always build in dir. "build" (if not there, mkdir build instead of building
1102       & running in input)
1103     - run in dir run (if it exists), in build otherwise.
1104     - call prepare_run (if input/prepare_run exists)
1105     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1106    o pkg/exf modifications to interpolation and rotation routines for more
1107       reasonable treatment of North Pole singularity: for tracers North Pole
1108       value is set to northernmost zonal-mean value, for zonal velocity it is
1109       set to zero, and for meridional velocity it is set to northernmost value.
1110    o pkg/exf/exf_check_range.F
1111     - add tile index to diagnostics and move stop statement to the very
1112       end of the routine.
1113    o pkg/diagnostics: (diagnostics_main_init.F)
1114      define title of isomorphic variables according to the current config.
1115    o pkg/thsice with pkg/seaice dynamics:
1116    - fix domain of computation (interior only, required for exf) and do exchanges
1117    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1118    o towards a standard way of dealing with multi-threading in MONITOR
1119      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1120    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1121       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1122    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1123    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1124    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1125       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1126    o tracer advection:
1127     - clean-up and simplify calc_common_factors.F
1128     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1129       advection subroutine (but still not used within DST advection S/R)
1130    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1131    
1132    checkpoint58j_post
1133    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1134      from file (collects calls previously in FORWARD_STEP)
1135    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1136    o adjoint store dir. adjusted accordingly
1137    o genmake2
1138      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1139    
1140    checkpoint58i_post
1141    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1142      on wind stress (SEAICEstressFactor defaults to 1.)
1143    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1144      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1145    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1146      on CS-grid: no longer loosing mass.
1147    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1148    o pkg/ggl90: fix sloppy output and fix a bug
1149    o pkg/seaice: added SEAICEuseEVPpickup parameter
1150      - Set to false in order to start EVP solver with
1151        non-EVP pickup files when using SEAICEuseEVP
1152      - fix sign error in diffusion in seaice_calc_rhs
1153    
1154    checkpoint58h_post
1155    * Modifications for bottom topography control
1156      o replace hFacC by _hFacC at various places
1157      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1158      o add non-self-adjoint cg2d_nsa
1159      o update autodiff support routines
1160      o re-initialise hfac after ctrl_depth_ini
1161      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1162    * Adding verification for 5x5 box (4-layer) bottom topography control
1163    
1164    checkpoint58g_post
1165    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1166       used for mean seasonal cycle, mean diurnal cycle); add an example
1167       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1168    o pkg/ggl90:
1169      - add parameter (minimum surface kinetic energy)
1170      - fix bug (avoiding division by zero)
1171    o couple pkg/thsice to pkg/seaice:
1172      - modify advection in seaice to accomodate new scalar fields to be advected
1173      - only muliDimAdection scheme work with seaice/thsice
1174      - mapping of thsice-variables to seaice-variables, back and forth
1175      - does not break the verification experiments, but does not give the
1176        desired results either
1177    o pkg/seaice
1178      - make (default) second order advection a bit less confusing?
1179    
1180    checkpoint58f_post
1181    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1182      to pkg/seaice):
1183      - new routines thsice_map_exf and thsice_get_exf provide the interface
1184      - add an additional formal parameter to thsice_solve4temp
1185    o pkg/exf:
1186      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1187      - correct Stefan-Boltzmann constant
1188      - new parameter for longwave surface emittance
1189      - separate some stuff from exf_bulkformulae into new routines  
1190        exf_radiation, exf_wind
1191      - add new parameters and constants: longwave emissivity for ocean, ice
1192        and snow, evaporation parameters over ice
1193      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1194        either wind from stress or stress from wind
1195    o pkg/thSIce:
1196    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1197    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1198       and THSICE_CALC_THICKN
1199    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1200    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1201      to make debugging easier.
1202    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1203    o pkg/bulk_force:
1204      - clean-up comments and parameters ;
1205      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1206    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1207      generate new output for test-experiment: aim.5l_cs.thSI
1208    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1209      testreport accordingly
1210    
1211    checkpoint58e_post
1212    o SEAICE_CGRID adjoint done
1213    o R_STAR adjoint implemented.
1214      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1215      * need to sort out init. of h0facc, etc.
1216    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1217      to be able to use it in pure forward.
1218    
1219    checkpoint58d_post
1220    o upgrade simple test-experiment to tutorial example:
1221     step.1: duplicate the experiment and (step.2) will remove the old copy.
1222      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1223      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1224      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1225      tutorial_global_oce_biogeo    <- copy of dic_example
1226      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1227      tutorial_plume_on_slope       <- copy of plume_on_slope
1228      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1229      tutorial_global_oce_optim     <- empty for now (David ?)
1230      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1231     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1232    o correct a sign problem in cost_scat.F
1233    o obcs and ptracers: fix boundary conditions for advections schemes
1234      with larger stencil
1235    o thsice adjoint: start
1236    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1237      completeness
1238    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1239      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1240    o ptracers adjoint:
1241      * avoid extensive recomputatations
1242      * fix missing re-init. of gptr (missed by TAF)
1243    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1244      me to turn off the excessive output to STDOUT that this package produces
1245    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1246      and add those terms in Vector-Invariant formulation.
1247    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1248      if the control period (xx_hfluxperiod etc) is 0
1249    o in profiles pkg, clean routines and fix details
1250    o in ecco pkg, reading ssh data:
1251      fix problem in case the model does not start at iter0=0
1252    o fix mnc-pickup/restart for ptracers
1253    o new package prifiles:
1254      code to compute profile-based cost by Gael Forget
1255      (modifs in ecco, ctrl, autodiff)
1256    o Benign bug fix in initialization (spotted by M. Mazloff) of
1257      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1258    
1259    checkpoint58c_post
1260    o adjoint: finish NLFS adjoint and provide reference output in
1261      verification/global_ocean.90x40x15/results_ad_nlfs
1262    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1263      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1264      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1265      with SEAICE_CGRID defined.
1266    o move calendarDumps from "data" to "data.cal" and clean-up the code
1267      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1268    o add useEXF & useCAL flags (for now, set in hard-coded way)
1269    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1270      (were missing in NH mode, and wrong in quasihydrostatic mode).
1271      waiting for Chris updated version of calc_gw to add those CALLs.
1272    o fix bug in quasihydrostatic S/R ;
1273      add a test for this option: global_ocean.90x40x15.qshyd
1274    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1275      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1276    o add on/off flag useOffLine for package OFFLINE
1277    o seaice:
1278      - modify advection so that it works also on the C-grid
1279      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1280        problem in multi-tile runs with C-grid
1281      - add flags for clipping ice velocities and/or masking solver forcing
1282      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1283        C-grid solver
1284      - added a few comments to seaice_diffusion.F
1285      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1286        are now exclusive)
1287      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1288        required re-ordering the code a little:
1289       + make DAIRN global variable (defined in SEAICE)
1290       + move computation of the viscosities eta and zeta into a new separate
1291         routine (because I need to recompute them in seaice_ocean_stress.F)
1292    
1293    checkpoint58b_post
1294    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1295      update output.txt of exp. aim.5l_cs.thSI
1296    o various mnc cleanups and improvements:
1297      + shrink lookup tables by factor of ~4
1298      + better error reporting when running out of lookup space
1299      + able to handle longer path/file names (up to 500 chars)
1300    o adjoint:
1301      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1302      - TBD: "hidden" mom_vecinv recomp. in dynamics
1303    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1304     (allow to differentiate between forcing components using new integer flags:
1305      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1306     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1307    o ecco
1308      - enable trend removal from SSH anomaly obs.
1309    o adjoint
1310      - a fix for PmEpR when #undef EXACT_CONSERV
1311      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1312      - try to fix "hidden" recomp. in forward_step for NLFS
1313        (NLFS seems broken sometimes after I checked it in)
1314    o seaice:
1315     - add c-grid version of the dynamic solver:
1316       + three new routines that are the c-grid substitute lsr, dynsolver
1317         and ostres
1318       + put a few fields that were local to dynsolver into global common
1319         blocks, so that I can move the computation of stresses etc into
1320         seaice_lsr (saves coding but may break the adjoint).
1321     - replace more hardwired parameters by runtime parameters
1322     - add ice masks that mask the rhs of the implicit solvers where there
1323       is no ice (commented out in seaice_dynsolver, because i am not sure
1324       if this works properly), eventually this should replace the clipping
1325       of ice velocities in seaice_dynsolver to +/-40cm/s.
1326    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1327      include it only where its needed
1328    o move balancing of fluxes before the call of external_forcing_surf
1329    o seaice:
1330      - correct units of turning angles (now they are really in degrees)
1331      - move computation of GWATX/Y out of main routine into dynsolver
1332      - initialize GWATX/Y in seaice_init
1333    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1334      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1335    o seaice: add runtime flags for turning angles (default to zero)
1336    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1337      and trend from exf forcing and ctrl control adjustments
1338    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1339      (since checkpoint57x_post)
1340    o change the default rotation period to 86164.s = the Earth rotation
1341    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1342      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1343    o seaice advection: add code for choosing between the default (2nd order
1344      central differences) and multiDim advection schemes provided by
1345      pkg/generic_advdiff
1346    o seaice:
1347      - removed all references to SEAICE_GRID.h fields from
1348        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1349        (cubed-sphere configuration will change a little)
1350      - grid computations in seaice_init are obsolete now.
1351      - cleaned up code a little so that is easier to read (hopefully).
1352      - added new (better?) discretizations of default advection and diffusion
1353        (turn on with SEAICEuseFluxForm)
1354      - replace 1 in 3d global fields by kSurface in growth.F
1355      
1356    checkpoint58a_post
1357    o seaice:
1358      - bug fix in advect.F
1359    o shelfice:
1360      - separate shelfice load anomaly from pload (breaks with time
1361        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1362        Its default is 0., but it may be computed more cleverly from (unknown)
1363        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1364        done offline. A good approximation of the pressure load anomaly is
1365        necessary to avoid large initial adjustment processes underneath
1366        deep-reaching shelfice.
1367      - small fix in ISOMIP shelfice_thermodynamics
1368      - add more sophisticated thermodynamics of Hellmer (1989), this is
1369        now the default
1370      - give a few constants more intuitive names
1371    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1372      if bulk formulae are used in long integration (especially EmPmR). Turn
1373      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1374      if balancePrintMean, the imbalance that is substracted is printed to
1375      STDOUT.
1376    o fix bug (typo) in obcs_apply_eta.F
1377    o add a new package shelfice which enables us to model the circulation
1378      underneath shelf-ice with draughts of hundreds of meters.
1379     - works
1380     - to do: + include improved thermodynamics
1381              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1382                instead of new field kTopC
1383              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1384                instead of new field R_shelfIce and new code in ini_depth.F
1385                and ini_mask_etc.F?
1386              + adjust vertical mixing schemes?
1387    o seaice pkg:
1388     - add a cpp-flag to include a simple formula for a salinity dependent
1389       freezing point of sea water at the surface
1390     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1391       meridional stresses are now different (and hopefully correct)
1392    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1393       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1394       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1395    o pkg/diagnostics: add options and parameters for regional-statistics
1396       diagnostics ; define regions by reading a region-mask from a file
1397       (might add other options later)
1398    o pkg/bulk_force:
1399     - add option and parameters to use AIM surface-flux formulae.
1400     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1401       others forcing fields (defined in PARM05, parameter file "data") are loaded
1402       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1403     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1404     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1405     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1406       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1407     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1408    
1409    checkpoint58
1410    o add "--embed-source" option to genmake2 which, when the supporting
1411      tools can be compiled (as determined by genmake2) will turn on the
1412      embed_files package which then embeds the entire MITgcm source code
1413      (*.[fFhc] + Makefile) used for the build within the executable
1414      - requested by CNH but off by default
1415      - adds a paltry <9MB to the mitgcmuv executable in most cases
1416      - only writes the output when useEMBEDSRC in eedata is true
1417    o clean up 3-dim. relaxation codes:
1418      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1419      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1420      * Thanks to Tom Haine for testing!
1421    
1422    checkpoint57z_post
1423    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1424      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1425    o fix the pickup behavior for obcs in combination with ptracers
1426    o fix a bug in ptracers_external_fields_load
1427    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1428      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1429    o transfered surface NH pressure to eta field (if exactConserv).
1430    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1431         and update lab_sea output.txt file.
1432    o completing 3-dim. relaxation code: additional term
1433         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1434      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1435      * At compile time, in "EXF_OPTIONS.h" set
1436          #define  ALLOW_CLIMTEMP_RELAXATION
1437          #define  ALLOW_CLIMSALT_RELAXATION
1438      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1439          tauThetaClimRelax3Dim = 15552000.0,
1440          tauSaltClimRelax3Dim  = 15552000.0,
1441      * 3 cases:
1442          1) Use a constant-in-time 3-dim. field
1443          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1444          3) Real-time relax. to time-evolving prescribed field
1445    o Adding Laplacian-type smoothness constraint on
1446      initial and boundary (forcing) controls (ic, bc)
1447      * enable at compile-time via
1448        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1449      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1450      * Absolute scale somewhat unclear so far
1451      * no area weighting was included since no other cost term does so far
1452    
1453    checkpoint57y_post
1454    First step for a NLFS adjoint
1455    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1456    o new init. routines for calc_r_star, calc_surf_dr
1457    o still need to deal with ini_masks_etc
1458    o testreport seemed happy
1459    checkpoint57y_pre
1460    
1461    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1462    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1463    o add new offset feature to offline pkg (plus minor cleanup)
1464    o cfc fixes for final year of integration
1465    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1466      be in GCHEM_OPTIONS).
1467    
1468    checkpoint57x_post
1469    o fix testreport Pb in multiple test experiment.
1470    o cleanup our namelist syntax in verification:
1471      - make it more F95 standards compliant (some work still needed)
1472      - allows the vast majority of our tests to work with gfortran
1473    o Non-Hydrostatic:
1474     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1475     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1476    o Allow to apply AB on T,S rather than on AB(gT,gS):
1477     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1478     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1479       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1480     - need a "clever" read_pickup to restart from the other AB formulation
1481    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1482    o remove some unused variables (reduces number of compiler warnings)
1483    o adjoint
1484      * Disable useVariableViscosity for adjoint for time being
1485        (there are a number of extensive recomputations)
1486      * Initialize certain variables needed for adjoint
1487    
1488    checkpoint57w_post
1489    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1490                 fix the singleCpuIO RS version of MDSWRITEFIELD
1491       and add a WARNING if using globalFiles=T with multi-processors.
1492    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1493      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1494    o tracer advection scheme:
1495      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1496       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1497       was not very convenient).
1498      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1499       (further tests needed for the implicit DST & Flux-Limiter schemes).
1500    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1501      and sRef for convenience, handy, when you want to initialize
1502      ptracers in a large domain with a constant non-zero value. Also,
1503      untangle ptracers_init.F a little.
1504    
1505    checkpoint57v_post
1506    o change dome exp. to use variable viscosity in side-drag terms.
1507    o remove all the files from the cfc_offline test since they are now
1508      incorporated into tutorial_cfc_offline which has been producing
1509      identical results for a few days of testing
1510    o add new parameter: sideDragFactor to enable half-slip-side BC
1511      and change side-drag S/R to use viscosity from mom_calc_visc
1512      (can switch back by setting sideDragFactor=0.); affects results at
1513      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1514       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1515    o vorticity & strain are now computed without masking, to account for
1516      no-slip-side BC in variable viscosity calculation ; mask is applied
1517      anyway later on, before computing advection/coriolis terms.
1518    o modify exp4 to test new obcs support for reading from external files
1519      and for passive tracers
1520    o fix behavior of ptracers_monitor when monitor output is written to a
1521      netcdf-file; still not independent of monitor.F (writes in the same
1522      file).
1523    o change default value of tRef (put a uniform, meaningful value for ocean
1524      & atmos) and initialize sRef (was missing, as Martin mentioned).
1525    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1526      to be proportional to enstrophy dissipation length.  Thus,
1527       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1528      This is now consistent with Smagorinsky and with the manual.
1529    
1530    checkpoint57u_post
1531    o OBCS and PTRACERS: add open boundary support for passive tracers
1532      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1533        OB-values from file; this is not different from the way theta and salinity
1534        are treated
1535      - however, Orlanski-radiation conditions are not supported, and the model
1536        will stop if you use pTracers and Orlanski at the same time.
1537      - beefed up the rountine obcs_external_fields_load: now only those open
1538        boundary values are overwritten with values from files for which there
1539        are really files, otherwise the OB-fields remain untouched. This makes
1540        it possible to use different OBs at different ends of the domain (as
1541        with EXF)
1542    o reduce number of exch calls in shap_filt (s2).
1543    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1544      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1545    
1546    checkpoint57t_post
1547    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1548    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1549      same truncation, independent of the face number: affects affects several
1550      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1551    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1552      note that biharmonic viscosity + no-slip was not tested in any experiment.
1553    o fix bug in non-linear free-surf side-drag ; generate new output for
1554      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1555    o make mnc honor the writeBinaryPrec flag for most kinds of output
1556    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1557    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1558      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1559    o add brackets in multi-terms sum to get same truncation, independent of
1560      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1561      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1562    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1563      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1564      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1565      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1566      Suggested values of viscosity parameters found in mom_calc_visc.
1567      Many new viscosity diagnostics available.
1568    
1569    checkpoint57s_post
1570    o Add clearing-house for viscosity calculations, mom_calc_visc and
1571      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1572      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1573      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1574      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1575      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1576      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1577      ViscAhStrain and viscAhTension are now retired.
1578    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1579    o In response to JMC's bug report, genmake2 now ignores any soft-links
1580      that it finds in the *current* directory when searching for files.
1581      Soft-links found in any other source directories will still work as
1582      they did before.
1583    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1584      a C routine to unlimit the stack size
1585    o mnc-ify pkg/aim snapshot vars
1586    o mnc-ify pkg/land as requested by Daniel
1587    o various changes to mnc including:
1588      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1589      - output can now be grouped so that all files within a group
1590          change the ITER portion of their names in lock-step together
1591      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1592          and works with both EXCH1 and EXCH2 (but needs more testing)
1593      - writing works for all verification test cases w/ g77 on Linux
1594    
1595    checkpoint57r_post
1596    o make MNC variable initialization happen earlier
1597    o add diagnostics for (almost) each term of the momentum Eq.
1598    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1599    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1600    o remove MINIMAL_TAVE_OUTPUT option ;
1601      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1602    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1603      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1604    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1605    o add time-dependent SST, SSS control
1606    o cost terms in ecco/ modularized (new cost_generic.F)
1607    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1608    o new infrastructure for seaice model vs. obs misfits in seaice/
1609      * driver from the_main_loop.F is seaice_cost_driver.F
1610      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1611      * gradient check in Exp. 6a of natl_box_adjoint/
1612    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1613      (see README file)
1614    
1615    checkpoint57q_post
1616    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1617    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1618      - bug was reported by Jean-Michel and Ian Fenty
1619    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1620      update exp. cpl_aim+ocn output.
1621    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1622      Needed for high-res. runs with large global files
1623      to be able to limit tapelev size
1624    o Changed some tests for adjoint:
1625      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1626      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1627      * global_ocean.90x40x15/ back to default 3-level checkpointing
1628    o Modifications to enable scripted COMMON to MODULE conversion
1629      * verification/OpenAD/code/ has necessary scripts and description;
1630      * converts, compiles and runs successfully;
1631    
1632    checkpoint57p_post
1633    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1634    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1635      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1636    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1637    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1638      (was already the case for dissipation with mom_vecinv,
1639       and also the case for grad.PhiHyd when staggered-timeStep)
1640      This will allow to put dissipation out-off the AB time-stepping.
1641     Unfortunately, affects truncation error. Update output of exp. that "fails"
1642      (cg2d matching number) and leave the others for later: front_relax(10),
1643      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1644      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1645    
1646    checkpoint57o_post
1647    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1648      (2) its ready to be documented during the 20050801 DocFest
1649    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1650      for ideal_2D_oce and lab_sea on linux_ia32_g77
1651    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1652      in global1x1_tot/code_seaice_adj to access indices 32, 33
1653      (worth another tag)
1654    
1655    checkpoint57n_post
1656    o adding precip control xx_precip 32
1657    o adding swflux control xx_swflux 33
1658    o Replacing 10 forcing penalty cost routines by 1 generic.
1659    o Implementing partitioning in time-mean and variable adjustment
1660      for atmos. state.
1661    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1662    o in natl_box_adjoint:
1663      * updated exp 1 to 10
1664        (but does not have time-mean vs. variable split results yet)
1665    o updated global1x1/*_seaice_adj/
1666      to incorporate latest changes
1667    o enable useSingleCpuIO for mdsio vector routines
1668      (applies in particular to tapelev I/O)
1669    o removed inefficient K-loop in all active_file*control*.F
1670    
1671    checkpoint57m_post
1672    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1673      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1674    o pkg/exch2: filling of face-corner halo regions is optional
1675      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1676    
1677    checkpoint57l_post
1678     tag before updating tutorials (pre-release-2)
1679    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1680       for output and interpolation of input fields onto model grid)
1681    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1682       Affects results of exp. rotating_tank ; update output.txt.
1683    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1684          and taking the square quantity and/or using a fraction-weight field.
1685    o fix aim_diagnostics_init.F mate numbers.
1686    o add mnc output capability to diagnostics/diagstat and update
1687      our cvsignore files for the ACSII output generated
1688    
1689    checkpoint57k_post
1690    o lab_sea now uses diagnostics package and provides a suite of
1691      new EXF diagnostics output.
1692    
1693    checkpoint57j_post
1694    o exf
1695      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1696        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1697        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1698      * extended diagnostics output
1699        - now includes all EXF variables
1700        - hs, hl moved to common block
1701        - separate S/R for diagnostics, called after ctrl vector is added
1702        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1703        - EXFqnet contains true Qnet (i.e. includes qsw)
1704      * updated verif. lab_sea, global_with_exf
1705      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1706        to ensure that diagnostics sees a true EXFqnet
1707    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1708    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1709      several times with different frequencies.
1710    o mnc-ify the thsice package as requested by Daniel Enderton
1711      - the monitor--MNC output needs work
1712      - many attributes need to be added (most are currently blank)
1713    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1714      - many attributes need to be added (most are currently blank)
1715    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1716    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1717    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1718      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1719         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1720    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1721     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1722    
1723    checkpoint57i_post
1724    o Diagnostics package was changed: diagnostic allocation is now deactivated
1725      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1726    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1727      add 1rst Order upwind vertical Shear.
1728    o add a quick fix for A/B checkpointing in OFFLINE mode
1729    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1730      end-run around the C/Fortran linking horror in eesup/src/timers.F
1731    o added pkg/runclock: allows user to terminate run based on wall clock
1732    o added non-hydrostatic scaling parameter: nh_am2
1733    o pkg/my82: futile attempt to make results compiler-independent by adding
1734      some "_d 0", etc. no effect.
1735    o for mnc output, fill the 'T' coordinate var with myTime and create a
1736      separate 'iter' variable for iteration count
1737    o pkg/diagnostics:
1738      add new capability: output of Global/Regional & per-level statistics ;
1739      tested against monitor output (including land & thSIce) on various exp.
1740    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1741    
1742    checkpoint57h_done
1743      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1744      data.diagnostics, data.gchem, data.ptracers) is done.
1745    
1746    o pkg/diagnostics: prepare for Global/Regional statistics.
1747      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1748    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1749      and rename it: DIFFERENT_MULTIPLE
1750    
1751    checkpoint57h_post
1752    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1753    o pkg/diagnostics: change output frequency, now in seconds (instead
1754      of Nb of iterations). This requires to change data.diagnostics.
1755    checkpoint57h_pre
1756    
1757    o in mnc, let the user create the output dir if both mnc_outdir_date
1758      and mnc_outdir_num are false
1759    o add fflags() to pkg/diagnostics which allows one to specify, on a
1760      per-file basis, the file precision [default behavior is unchanged]
1761    o added diagnostics to pkg/kpp, including computation of mixed layer
1762      depth based on a temperature/density criterion
1763    o updated verification/natl_box to test the new pkg/kpp diagnostics
1764    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1765    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1766    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1767      not mnc -- this mistake was found by JMC and is now corrected
1768    
1769    checkpoint57g_post
1770    o add Adams-Bashforth 3rd Order time stepping:
1771      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1772      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1773    checkpoint57g_pre
1774    
1775    o make lambda[Theta,Salt]ClimRelax spatially varying
1776      (default remains spatially uniform constant based on tau)
1777    o added new control variables
1778      * init. uVel, vVel, etanN
1779      * lambda[Theta,Salt]ClimRelax
1780    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1781      (suggested by G. Forget)
1782    
1783    checkpoint57f_post
1784    o add parameter "baseTime" = model base time = time at iteration zero
1785      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1786      account for baseTime shift
1787    o move Coriolis arrays from PARAMS.h to GRID.h
1788    checkpoint57f_pre
1789    
1790    o mnc-ifying the seaice package
1791    o introduced an alternative length scale calculation for use in the limiting
1792      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1793    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1794    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1795      as well as grad(vort3).  Made it compatible with both approximate form
1796      for the cubed sphere and full form of these gradients.  Added flag
1797      useFullLeith to select between approximate and full form.  
1798    o add "d0" in getcon.F to reduce differences between compilers/platforms
1799      update output.txt of exp. fizhi-gridalt-hs
1800    o change port_rand funtion to allow to set the seed.
1801    o fix obscure MNC bug involving conversion between reals and integers
1802      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1803        new version is now more standards-compliant
1804    o adjoint-related modifications
1805      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1806      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1807      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1808    
1809    checkpoint57e_post
1810    o Adding eddy stress controls a la Ferreira et al.
1811    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1812    
1813    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1814      update output.txt of exp. fizhi-gridalt-hs
1815    o add more "Z" dimensions and associated coordinate vars to MNC
1816    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1817    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1818      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1819      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1820      months and years.  Requires pkg/cal.
1821    o diagnostics: add pickup functionality
1822      - off by default for backwards compatibility
1823      - current version only uses MDSIO -- MNC will be added
1824    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1825    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1826    
1827    checkpoint57d_post
1828    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1829    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1830      output from the diagnostics package
1831    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1832    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1833      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1834    o add coordinate variables to the MNC output from the diagnostics package
1835    o change MNC-flags default value: true when useMNC=TRUE
1836    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1837      the ability (off by default) to read the grid information using MNC
1838    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1839    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1840    o do snap-shot diagnostics at the middle of the time-interval (instead of
1841      at the end).
1842    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1843      new test for AIM with thSIce + slab-ocean
1844    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1845    o move state variable diagnostics to the beginning of the time step ;
1846      (note: still needs some work specially for snap-shot diagnostics)
1847      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1848    
1849    checkpoint57c_post
1850    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1851    o generate new output.txt files on faulks with g77 & the new -ieee option
1852    checkpoint57c_pre
1853    
1854    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1855      update output.txt of exp. global_ocean.90x40x15
1856    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1857      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1858    o add saltFlux(+File) forcing capability with periodicExternalForcing
1859    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1860    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1861    o improvements for the MNC output from DIAGNOSTICS:
1862      - correct handling of the unlimitied dimension
1863      - all dims now have associated coordinate variables
1864      - variables located at U, V, and Corner ("Z") points are now written
1865        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1866        *all* data points are output
1867    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1868    o added pkg/seaice/seaice_monitor.F
1869    o mdsio_readfield.F can now read files visible only to master MPI process.
1870    o pkg/seaice: some test code for ice-modified ocean stress
1871    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1872      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1873      spurious negative numbers for precipitation and humidity.  Will cause
1874      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1875    o pkg/ctrl/
1876      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1877        May be enabled via doPackDiag
1878      *  introduce z-scaling of
1879         + gradient (doZscalePack) and
1880         + control (doZscaleUnpack)
1881    o pkg/mdsio/
1882      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1883      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1884    
1885    checkpoint57b_post
1886    o simplify options in diagnostics_fill arguments (remove weird combinations)
1887    o fix MNC coordinate variables so that they now contain per-face index
1888      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1889      general, EXCH2 grids are only aligned to a "local" coordinate system
1890    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1891    o Implement instantaneous output within pkg diagnostics:
1892      setting a negative frequency in data.diagnostics produces
1893     "snap-shot" output (as opposed to time-average if freq > 0)
1894    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1895      NOTE: change ptracer diagnostics name: use 2 characters to work with
1896            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1897    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1898      becomes the coordinate variable for the 'T' dimension
1899    o add CF-style coordinate variables to MNC
1900      - just a first cut:  numbers are meaningless on the cubesphere and
1901        missing along the T axis but otherwise it works!
1902    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1903    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1904    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1905      this is based directly on what the model compute, so that the content of
1906      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1907    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1908    o clean up build options files for SunOS, in particular
1909      - remove -traditional from xmakedepend
1910      - change -xarch=v9 to -xarch=native for f77
1911      - restore use of make (not gmake)
1912      - add CC=gcc if using g77
1913    o changes per discussion of AM, JMC, & EH3 today:
1914      - move redundant "grid" variables out of "state" -- in preparation of
1915        creating proper CF-style coordinate variables and in recognition
1916        that any/all grid variables can be easily copied (eg. w/NCO) from
1917        the grid files into any of the other NetCDF files
1918      - *always* output grid variables with MDSIO (this will eventually be
1919        changed)
1920      - output MNC grid file if useMNC is true
1921    o every instance of _END_MASTER() has been found and replaced with
1922      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1923      preprocessors
1924    o re-arrange diagnostics pkg initialisation:
1925     - allow each package to extend the available diagnostics list
1926     - add some checking and fix small problems (multi-threaded, ...)
1927     - new S/R diagnostics_fill (replace fill_diagnostics):
1928       look through the short list of active diag. (instead of the long list)
1929       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1930    
1931    checkpoint57a_post
1932    o this set of changes restores TAMC compatibility
1933      tested for global_ocean.90x40x15 adjoint on trough
1934      (what a pain)
1935    
1936    checkpoint57a_pre
1937    o some modifs in tools/build_options for sunos
1938    o call ctrl_pack for ctrl at end for optimcycle=0
1939    
1940    checkpoint57
1941    o add horizontal bi-harmonic viscosity for vertical velocity
1942      - new parameter viscA4W (defaults to viscA4)
1943      - affects only non-hydrostatic code
1944      - to be done: no-slip lateral boundary conditions
1945    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1946    o implement Implicit Vertical advection for pTracers
1947    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1948      (implemented also for implicit vertical diffusion & advection)
1949    o OBCS: extend application of tracer open boundary conditions
1950      to a strip beyond the boundary of width Olx/Oly
1951    o add call monitor to TAF set of required calls (flow directives)
1952      and include in natl_box_adjoint
1953    o untangle a few ifdefs related to cost, ctrl, autodiff
1954      untangel a few ALLOW_ECCO_OPTIMIZATION
1955    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1956      (theta2, salt2 in ecco_cost_weights)
1957    
1958    checkpoint56c_post
1959    o OBCS as control variables
1960      - update ctrl_ad_diff.list, obcs_ad_diff.list
1961      - remove balance of obcs controls from default
1962      - fix index bug nobcs in ctrl_init
1963      - fix dummy fields filen in ctrl_pack
1964      - add dummy weights for obcs
1965    o lsopt: comment out fort.94 output
1966    o optim:
1967      - remove unnecessary header files
1968      - adjusted namelists
1969      - add xerbla.F to Makefile
1970    o exf:
1971      - multiple modifications of exf_check_range
1972      - unit change in exf_init_runoff from [m/year] to [m/s]
1973    o mdsio:
1974      - i/o-vector change debugLevel from debLevA to debLevB
1975    
1976    checkpoint56b_post
1977    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1978      is called from DO_THE_MODEL_IO
1979      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1980      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1981      - clean up PTRACERS_WRITE_TIMEAVE a little
1982    o add another verification experiment that tests both the cfc-pkg and
1983      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1984      reactive tendencies treated inline with regular timestepping
1985    o testreport previously did a lousy job of comparing small numbers, so
1986      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1987      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1988      testreport.
1989    o ptracers_monitor: bug fix for MPI
1990    
1991    checkpoint56a_post
1992    o GCHEM: finish reorganizating the package
1993      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1994        (introduces another 3D-array for each passive tracer, but only if
1995        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1996        gchemTendency is not needed because the timestep is done separately)
1997      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1998      - GCHEM is now---more or less cleanly---separate from PTRACERS
1999      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2000        so clear to me how that should be done in a general way.
2001    o CFC: improve formatting of output in CFC_ATMOS
2002    o PTRACERS:
2003      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2004        that ALL experiments with ptracers enable can be checked. This makes
2005        GCHEM_MONITOR obsolete.
2006      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2007        monitorFreq
2008      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2009    o add PTRACERS (PTR0[1-5]) to testreport output
2010    o exf_check_range:
2011      * default changed to .TRUE.
2012      * will check values for niter0 if debLevA, every timestep if debLevB
2013      * STOP in exf_check_range if 'out of range'
2014      * range chosen generous to allow for potential extema
2015      TBD: a version with stricter range
2016           permitted range would be runtime parameters
2017    o GMredi:
2018      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2019      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2020      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2021    o GCHEM:
2022      - move call to GCHEM_FORCING_SEP, so that it is now called before
2023        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2024      - introduced a useGCHEM runtime flag and applied it everywhere.
2025      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2026        this flag is now only visible within GCHEM-pkg routines.
2027      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2028        be replaced by a 3D array that is computed before thermodynamics; for
2029        this, the tracer ID iTracer had to be included into the parameter list
2030        of ptracers_forcing
2031      - set up forward_step to call gchem_forcing, that will replace
2032        gchem_forcing_int in ptracers_forcing
2033      - cleaning up
2034    o small cleaning of exch2: remove files that are also in eesupp/src
2035    
2036    checkpoint56
2037    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2038    o mnc: cleanup "full" files--fixes out-of-memory problem
2039    o ECCO-GODAE
2040      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2041      * fully merged and updated from SIO code
2042        windstress sign change affects
2043        - exf_inscal_[u/v]stress
2044        - sign of xx_tau[u/v] adjustments
2045        - signs in cost_scat
2046      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2047      * natl_box_adjoint updated and compressed
2048      * 2-level checkpoint switch added
2049        (tested in EXP. 1 of natl_box_adjoint)
2050      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2051    o SVD
2052      * first complete, non-hacked version for SVD calculations
2053      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2054        performed via direct access files admtlm_vector.it????
2055        (via ctrl_[un]pack)
2056      * optimcycle is used for ARPACK iteration counter
2057        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2058      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2059        and add linear transforms where necessary
2060      * controls are initial/final SST, SSS (can be extended; need to check
2061        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2062    o mdsio: filename info to both stderr, stdout
2063    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2064      from sign change
2065    
2066    checkpoint55j_post
2067    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2068      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2069    o add consistent build directories and .cvsignore files to verification
2070    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2071    o make all subroutines 30 or less characters in length for certain older
2072      compilers to work (a thorough search only turns up two routines in
2073      pkg/ptracers)
2074    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2075      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2076    
2077    checkpoint55i_post
2078    o change arrays for total vertical diffusivity (2.D if explicit,
2079      3.D if implicit) ; each ptracer uses its own background value.
2080    o added mnc/NetCDF output capability to ocn_compon_interf
2081      - added bits to verification/cpl_aim+ocn so that it can run on
2082        ITRDA and other clusters without the mpirun "-wd" option
2083    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2084      configuration
2085    o give MNC the ability to create additional files rather than
2086      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2087      - the default is just less than 2GB which is a practical limit
2088        on many systems
2089    o Compute the non-local term using either KPP vertical diffusivity (=default)
2090       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2091    
2092    checkpoint55h_post
2093    o add verification test "vermix"
2094    o remove all the *_ioinc flags and replace with the single global
2095      outputTypesInclusive flag
2096    o allow to set a vertical profile of vertical diffusivity for T & S
2097    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2098    o useMNC moved from data.mnc to data.pkg
2099    
2100    checkpoint55g_post
2101    o Renaming carbon AD experiments to comply with testreport conventions
2102    o Updating adjoint of Held-Suarez hs94.1x64x5
2103    o Fixing directives for non-ECCO forward_step, after ECCO directives
2104      have been fixed to avoid recomp. of do_oceanic_phys
2105      Works well for global_ocean.90x40x15,
2106      but recomp. issue remains for carbon
2107    o Updating adjoint output for natl_box_adjoint after
2108      pkg/ecco has been modified (see taga c55d_post)
2109    
2110    checkpoint55f_post
2111    o rename to timeave_init_fixed
2112    
2113    checkpoint55e_post
2114    o some delicate re-shuffle of store directives to avoid one
2115      extra call of do_oceanic_physics
2116      affects ecco_the_main_loop.F, do_oceanic_physics.F
2117      checkpoint_lev1_directives.h
2118    o NB: this may break global_ocean adjoint temporarily,
2119      but it is clear how to fix it. Will do later, need this now.
2120    
2121    checkpoint55d_post
2122    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2123    o ecco_cost_weights is modified to 1x1 runs
2124    o modifs to allow observations to be read in as
2125      single file or yearly files
2126    o enable to read exf forcing fields as either
2127      single file or yearly files (flag useExfYearlyFields)
2128    checkpoint55d_pre
2129    
2130    o switch between 2-level and 3-level checkpointing
2131    o add ability of MNC to write local and "partial" (eg. 2D slices where
2132      the full 3D field is never actually stored) arrays to NetCDF files
2133      with the correct (that is, the complete multi-dimensional) set of
2134      array indicies
2135      - used in mom_vecinv() to write the diagFreq output
2136      - tested (demonstrated) in verification/aim.5l_cs
2137    o further mnc-ification
2138      - add verification/lab_sea to the list with mnc setups
2139      - fix undefined mnc v-names in cd_code
2140      - add kpp to mnc output (both snapshot and timeave)
2141    o non-hydrostatic code
2142      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2143        in calc_gw.F
2144      - defaults to viscAh
2145      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2146        friction or Leith) in non-hydrostatic mode, as long as there is
2147        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2148    o pkg/cost
2149      extend simple cost functions to treat time mean quantities
2150      (T,U,V) via cost_accumulate_state from cost_tile
2151    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2152        be 2 times larger than the minimum size the advection scheme requires.
2153        now get a perfect conservation of salt in advect_cs test-exp (updated)
2154    o GGL90 (Gaspar's TKE mixed layer)
2155      - add horizontal diffusion of TKE, requires exchanges in
2156        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2157        default. In OPA there is no horizontal diffusion of TKE but the
2158        mixing coefficients are computed from a horizontal average of TKE of
2159        6 points or so. I think that diffusion has a little more physical
2160        justification.
2161      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2162        was in vain)
2163      - mask tke-variable in ggl90_init
2164    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2165    o fix biharmonic diffusion on CS-grid.
2166    o more obcs stuff
2167      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2168        for reading boundary values. This routine is called from
2169        obcs_prescribe_read
2170      - updated obcs_check
2171      - changed sponge layer relaxation parameter units for days to seconds
2172      - turned off sponge layer by default
2173      - changed argument list of OBCS_CALC to myTime+deltaTclock
2174      - fixed about 35 bugs in obcs_external_fields_load
2175    
2176    checkpoint55c_post
2177    o obcs stuff
2178      - new runtime flags useOBCSprescribe, useOBCSbalance
2179      - re-arranged obcs_calc
2180      - moved exf_getobcs to obcs_prescibe_read
2181        obcs_prescibe_read is called after ORLANSKI stuff
2182        and independent of it (executable can contain all).
2183      - updated obcs_check
2184      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2185        These may be necessary only if tangential velocities are
2186        prescribed at OB, not sure, needs testing.
2187    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2188      which simplifies the calls and passes the ifc check-bounds test
2189    
2190    checkpoint55b_post
2191    o add a 2D scalar, Z location, exchange_2 routine.
2192    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2193      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2194      affects advect_cs results (for the wrong reason): update output.txt
2195    o use a more standard discretization for biharmonic viscosity ;
2196     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2197      affects results of dome set-up: update output.txt
2198    o fix gad_advection.F (CubedSphere part), back to version 1.23
2199    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2200    
2201    checkpoint55a_post
2202    o merged code to
2203      * prescribe/read time-dependent open boundaries
2204        (works in conjunction with exf, cal)
2205      * sponge layer code for open boundaries
2206      * each boundary N/S/E/W now has its own CPP option
2207        (healthy for the adjoint)
2208    
2209    checkpoint55
2210    o up-to-date adjoint of previous breaks
2211      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2212      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2213      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2214      - carbon: * remove tr1-related adjoint verification
2215                * add ptracer as control variable
2216    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2217      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2218    
2219    checkpoint54f_post
2220    o in verification/carbin/ remove experiment related to
2221      ALLOW_PASSIVE_TRACER (array tr1 etc)
2222      code_ad/ input_ad/ results_ad
2223    
2224    o add two new packages
2225      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2226        + subject to optimization (memory)
2227      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2228        + subject to reordering (many GOTOs in the original code)
2229        + so far opps is called for every (i,j) point, and then operates in
2230          the vertical; one may want to reorder the scheme in order operate in
2231          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2232          fields)
2233    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2234      - all verification tests compile and run with linux_ia32_g77
2235      - defaults are compatible with current input files--nothing
2236        should change if you were not previously using MNC
2237      - MNC output has been added in numerous places (eg. timeave)
2238        but there are still a few writes not yet do-able with MNC
2239        (this is in progress)
2240      - flags now allow for either/or/both use of MDSIO and MNC and
2241        documentation will soon follow
2242      - numerous small formatting cleanups for ProTeX
2243    o add version info (via BUILD_INFO.h) to MNC and stdout
2244    
2245    checkpoint54e_post
2246    o add two new packages
2247      - pp81 (Packanowski and Philander, 1981), Richardson number and
2248        stratification dependent mixing
2249      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2250      - these scheme operate in a similar manner as KPP (without ghat, of
2251        course), however there is only one diffusivity that is used for both
2252        temperature and salinity (and passive tracers)ç
2253    o add offline package
2254    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2255      provided by Stephanie Dutkiewicz
2256    o genmake2: add ability to search for C compilers and cleanup test output
2257      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2258    
2259    checkpoint54d_post
2260    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2261    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2262      leading to additional shift by 5 days each year of integration
2263       (i.e. leading to considerable offset over the years)
2264    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2265    o start with no AB and no initial filtering (staggerTimeStep):
2266      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2267    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2268      (external loading & cpl import/export stay in forward_step.F)
2269    o update coupling interface to work with new staggerTimeStep
2270    o change MDSIO ptracers_pickup.
2271    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2272    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2273    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2274    
2275    checkpoint54c_post
2276    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2277      this affects (truncation error) output.txt of test-exp:
2278       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2279    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2280    o change Qnet to always be the net heat flux, (+upward).
2281      affects (truncation error) output of natl_box exp.: updated
2282    o define the max number of passive tracers in PTRACERS_SIZE.h
2283    o start to test mnc routinely in exp0
2284    o add sea-ice loading (sIceLoad) as a new forcing field.
2285    
2286    checkpoint54b_post
2287    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2288       impressive on Altix and Opteron systems)
2289    o diagnostics can now write NetCDF files through the mnc package
2290    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2291    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2292    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2293      affects (truncation error) output of lab_sea & natl_box exp.: updated
2294    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2295    
2296    checkpoint54a_post
2297    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2298    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2299    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2300    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2301      + internal_wave (shift in writing cg2d_ini_res)
2302    checkpoint54a_pre
2303    
2304    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2305      - modified verification/lab_sea and natl_box_adjoint accordingly
2306    
2307    checkpoint54
2308    checkpoint53g_post
2309    o prepare splitting of thermodynamics: store convect.counter in common block
2310    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2311      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2312    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2313    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2314    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2315    o restore adjointability
2316    
2317    checkpoint53f_post
2318    o modifications that affect AIM experiment results (update output.txt):
2319      - no advection of S at top interface Nr (pkg/generic_advdiff)
2320      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2321    o AIM pkg:
2322      - include stability function into surf.Flux derivative relative to Tsurf
2323      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2324    
2325    checkpoint53e_post
2326    o merged cylindrical coord configuration
2327    o added rotating_tank experiment
2328    checkpoint53e_pre
2329    
2330    checkpoint53d_post
2331    o faulks upgraded: re-generate output.txt that have changed:
2332       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2333    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2334    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2335    o added Sadourny discretization of Coriolis
2336      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2337      - re-enabled use of omega3 (useAbsVorticity)
2338    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2339      vector-invariant equations
2340      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2341    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2342      hopefully without new bugs
2343      - still to do: biharmonic friction for non-hydrostatic w
2344    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2345    o regenerated output for global_ocean_ebm (using -ieee)
2346    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2347      of mom_common/
2348      - simple re-arrangement of instructions within computing loop
2349    checkpoint53d_pre
2350    
2351    checkpoint53c_post
2352    o new version of coupler for AIM+thSIce and Ocean models
2353     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2354     - land: change Evaporation of snow
2355     - aim with thSIce: fix bug in snow-precip.
2356    o changes to calc_gw.F
2357     - bug fix for w^2 term near the bottom boundary
2358     - (hopefully) improve the lateral slip boundary condtions for use with
2359        partial/looped cells
2360      - because the bug fix changes two verification experiments anyway (exp5
2361        and plume on slope), change the lateral boundary condition from half slip
2362        to the value of no_slip_sides
2363    o ebm package wasnt quite up to the parallel task. Fixed that.
2364    o Adjoint of EBM package + verification
2365      * TLM OK
2366      * ADM not sufficient accuracy yet (needs further testing)
2367    
2368    checkpoint53b_post
2369    o Commiting new energy balance model to repository
2370      * package is pkg/ebm
2371      * verif. is verification/global_ocean_ebm
2372      * references are in ebm_driver.F
2373    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2374    C        Global thermohaline circulation. Part I:
2375    C        Sensitivity to atmospheric moisture transport.
2376    C        J. Climate 12(1), 71-82
2377    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2378    C        Global thermohaline circulation. Part II:
2379    C        Sensitivity with interactive transport.
2380    C        J. Climate 12(1), 83-91
2381    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2382    C        Destabilization of the thermohaline circulation
2383    C        by atmospheric eddy transports.
2384    C        J. Climate 7(12), 1870-1882
2385    o Will need long integration testing.
2386    checkpoint53b_pre
2387    
2388    o created pkg/mom_common in preparation for variable viscosity code
2389    o renamed and split ini_mnc_io
2390    o pkg/land: only liquid water can diffuse or run-off
2391    o AIM using land: soil wetness availability account for snow
2392    o added printMapIncludesZeros to EEPARMS namelist
2393    
2394    checkpoint53a_post
2395    o restore TAMC compatiility for exf_constants.h
2396      (no usage of _d in .h)
2397    o Additional storing in KPP in an attempt to fix
2398      TAMC problem with adjoint of KPP code.
2399      (no success...)
2400      Identical code works fine with TAF.
2401    o Fixed verification/natl_box_adjoint experiments.
2402      Initial conditions for Experiments 4 and 5 are now
2403      set to "SEAICE_initialHEFF=0", which is more reasonable,
2404      and hence gives results closer to that of Experiment 2.
2405      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2406    
2407    checkpoint53
2408    o stable checkpoint with up to date adjoint
2409      TLM tests only run for 1st grdchk at the moment. Its unclear if
2410      this is a code problem or a problem with resetting code for g_
2411      variables that is being autogenerated wrong.
2412      Otherwise:
2413       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2414       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2415         are both still in chaos following their security messes.
2416    
2417    checkpoint52n_post
2418    o various build (mostly genmake2) changes including:
2419      - ability to build/run more easily within Cygwin and MacOS X
2420      - more complicated Makefiles with a stronger dependence on Gnu Make
2421    o pkg/seaice modifications
2422      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2423        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2424        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2425      - changed proxy for geostrophic velocity and updated
2426        verification/lab_sea/results/* accordingly
2427      - removed ADI dynamic solver from pkg/seaice
2428      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2429        they caused a segmentation fault under certain circumstances
2430      - removed unused field WATR
2431    o bug fix in exf-package:
2432      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2433         now reflect that.
2434    o small fixes in the cal-package:
2435      - set reference date to first of January for the 'model'-calendar
2436      - failing of cal_CheckDate in cal_FullDate now actually results in a
2437        warning
2438    o small modifications in exf-package to increase flexibility:
2439      - change climtempfreeze from a constant to a runtime parameter that
2440        is specified in data.exf_clim (default = -1.9)
2441      - introduce runtime parameter windstressmax (default = 2.0) that is
2442        specified in data.exf
2443    o fix in pkg/thsice:
2444      - update Evap (Tsf changes) to be consistent with Latent heat flux
2445      - maintain snow precipitation unchanged (even if Tsf >=0).
2446     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2447    
2448    checkpoint52m_post
2449    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2450      this does not change any of the results, because myIter=0 in swfrac always
2451      lead to jwtype=2 (the default anyway), but the call makes little sense
2452      as a default
2453    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2454    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2455      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2456    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2457    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2458    o extending useSingleCpuIO option to work with new exch2 I/O format
2459      - old-style, missing-tile I/O is still accessible by defining CPP
2460        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2461    o monitor package can write to NetCDF files and/or STDOUT
2462    o fix re-definition bug in MNC_GRID_INIT_ALL()
2463    o doc/api_reference added
2464      - a framework for building an API Reference Manual using all
2465        the "protex" comments embedded in the code
2466      - see pkg/generic_advdiff, pkg/mnc for examples
2467    o MNC:
2468      - make myThid the last argument for all subroutines
2469      - new default for the grid files: NO halos
2470      - add useMNC and other run-time flags
2471      - separate per-file-group handling of the unlimited dimension
2472      - early initialization of MNC w/ flags read at the eeboot stage
2473        and lookup tables set in initialize_fixed
2474      - write all MNC output to a freshly-created directory
2475    o thermodynamics sea-ice (thsice) is now tested with testreport.
2476    o test exp. advect_cs: use the standard cs32 grid ; update output.
2477    o Added functionality to grdchk:
2478      pick global i,j,k position (or nearest wet) where to perform check.
2479    
2480    checkpoint52l_post
2481    o new land formulation:
2482      a) use ground enthalpy as prognostic variable to ensure exact
2483         energy conservation.
2484      b) account for water temperature and for latent heat of freezing
2485         in all processes (rain, run-off, ground storage)
2486      c) compute surface and ground temperature implicitly.
2487    o aim_v23 modification for new land model:
2488      a) Treat separately land / ocean / sea-ice surface fluxes
2489         to allow implicit computation of land & sea-ice surface temp.
2490      b) add snow precipitation.
2491    checkpoint52l_pre
2492    
2493    o fix problem (when 1 tile is empty) in min/max monitor.
2494    o fix bug in timeAve (u,vZetatave in common block)
2495    o no restoring terms under ice for pkg/seaice
2496    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2497    o bug fix for pkg/seaice pickups
2498    o change MNC call locations and add coordinate attributes
2499    o mask vorticity at the corner ; affects global_ocean.cs output
2500    o fix ini_curvilinear_grid ; test CS experiments with mpi
2501    o aim.5l_cs: modify sea-ice fraction input file ; update output
2502    o exf: Adding simple range check routine for exf fields after read
2503    
2504    checkpoint52k_post
2505    o removed top-level directory "diags"
2506      - we migrated these functions to pkg/timeave a long time ago
2507    o fixed bug introduced in pkg/monitor
2508    o accuracy ctrlprec = 32 insuffient for gradient checks using
2509      averaged fields (I/O via cost_averages)
2510      -> use ctrl.h in active_file*.F to control I/O precision.
2511    o paramter list of CALL ADTHE_MAIN_LOOP
2512    o added initial do_the_model_io to ecco
2513    o set all ...Freq to zero after cost_final
2514      taveFreq, dumpFreq, pChkptFreq
2515    o MAIN and ECCO differentiability restored
2516    
2517    checkpoint52j_post
2518    o fix nchklev in tamc.h for global_ocean...
2519    o Bringing flow and store directives up-to-date
2520    o Really weird thing!
2521      call do_the_model_io from the_main_loop with parameters
2522      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2523      TAF places a faulty re-call of initialise_varia
2524      after cost_final call which should not be there!
2525    checkpoint52j_pre
2526    
2527    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2528      error messages
2529    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2530    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2531      debug output
2532    o modfied mdsio_writefield.F to handle non-global files under exch2
2533    o update AIM Cubed-Sphere exp (aim.5l_cs):
2534      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2535    o update AIM Equatorial Channel exp:
2536      use standard aim_v23 pkg and change the SST fields to be more realistic.
2537    o globalFile now works with exch2
2538    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2539      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2540    o limit timeave output for hi-res integrations
2541    
2542    checkpoint52i_post
2543    o removed CPP_EEOPTIONS.h from verification/*/code
2544    o updated the tiling for global_ocean_pressure
2545    checkpoint52i_pre
2546    
2547    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2548      the old pkg/aim).
2549    
2550    checkpoint52h_pre
2551    o shortened offending lines in exch2_send_rx?.template
2552    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2553    o genmake2: add build & execute test for NetCDF code
2554    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2555      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2556    o added useSingleCPUIO flag to monitor.F and mon_out.F
2557    o added temporary hack for sea-ice dynamics on the cube:
2558      metric terms are ignored and it is assumed that
2559      there is no sea-ice on cube faces 1, 2, 4, and 5.
2560    
2561    checkpoint52f_post
2562    o added exch2 cube routines to pkg/exch2
2563    o modified hs94.cs-32x32x5 to use it
2564    o added new grid files to hs94.cs-32x32x5
2565    checkpoint52f_pre
2566    
2567    checkpoint52e_post
2568    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2569      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2570    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2571      to work with implicit vertical advection and AB ;
2572    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2573    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2574     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2575    checkpoint52e_pre
2576    
2577    o fix bug in impldiff when Nr=1 or Nr=2.
2578    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2579    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2580    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2581      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2582    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2583    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2584    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2585    
2586    checkpoint52d_post
2587    o re-tiled many expts to allow comparison in multi-processor mode
2588      - updated output accordingly
2589      - changed hs94.128x64x5 to use intial T from file rather than use the
2590        random number generator
2591    o add infrastructure in model routines for fizhi and gridalt packages
2592    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2593    o changes to permit hi-res, cubed-sphere, configuration
2594      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2595      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2596      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2597        of surface winds for the cube
2598      (A verification experiment, based on global_ocean.cs32x15, but with
2599       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2600       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2601       complete with example surface forcing files and matlab scripts to look
2602       at the output and compare it with that of global_ocean.cs32x15.)
2603    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2604       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2605       to conform to the common rule.
2606    o check-in the first version of the coupler + interfaces for multi-components
2607       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2608       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2609       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2610       - ocean and atmos. share the same horizontal grid (no interpolation).
2611       - exchanges between component and coupler is done in forward_step
2612    o new verification experiment, cpl_aim+ocn:
2613       coupled ocean - AIM atmosphere on cs32 grid.
2614    
2615    checkpoint52d_pre
2616    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2617    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2618    
2619    checkpoint52c_post
2620    o Fixing OPTIONS files for use of exf:
2621      - ALLOW_ECCO not needed
2622      - ECCO_CPPOPTIONS.h should not be included from
2623        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2624        as has been the case in the past
2625      - All cal/exf related options are currently set in
2626        single header file. Should remain so until we
2627        agree on a consistent new policy.
2628    o Removed all CPP options for cal package.
2629      cal has no more CPP options.
2630    o modified STOREs in GAD_ADVECTION
2631    o corrected key comp. for passkey
2632    
2633    checkpoint52b_post
2634    o new version: "thsice" of thermodynamic sea-ice pkg:
2635     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2636     - modify fluxes but do not change theta directly;
2637     - light cleaning of bulk_force pkg (still needed with thsice).
2638     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2639       + output_thsice.txt to test thsice & bulk_force pkgs.
2640    o put back grid & coriolis monitor output.
2641    checkpoint52b_pre
2642    
2643    o call "do_the_model_io" at the beginning (=> dump initial state)
2644    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2645    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2646      (need info on NUMBER_OF_PTRACERS)
2647    o missing PTRACERS headers in some routines
2648    o default tamc.h in pkg/autodiff supposed to crash
2649      to ensure proper customization
2650    
2651    checkpoint52a_post
2652    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2653      - moved surfaceTendencyTice from pkg/seaice to main code
2654      - subroutine FREEZE_SURFACE now limits only surface temperature
2655        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2656        => new output.txt for global_ocean.cs32x15 & global_with_exf
2657      - keep the old version of FREEZE for backward compatibility;
2658        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2659      - corresponding modifs for TAF directives
2660    o added surface flux output variables to TIMEAVE_STATVARS
2661    o time-averaged output for pkg/ptracers
2662    o fix problem with ECCO-related divided adjoint
2663      snapshot file was missing some ad-variables,
2664      but no warning issued by TAF
2665    
2666    checkpoint52a_pre
2667    o some bug fixes for #undef REAL4_IS_SLOW
2668    
2669    checkpoint52 = ecco_c52_e35
2670    o after testing adjoints of checkpoint51u_post
2671    
2672    checkpoint51u_post
2673    o this is the post-merge tag of the ecco-branch
2674      (needs another clean checkout and re-testing)
2675    o various natl_box_adjoint configs and results
2676      but no input fields
2677    o obcs adjoint not yet merged!
2678    o adding ECCO global 1x1 and 2x2 degree configs
2679    o updated/extended some store directives for seaice
2680    o pkg/ecco now containes ecco-specific part of cost function
2681    o top level routines the_main_loop, forward_step
2682      supersede those in model/src/
2683      previous input data.cost now in data.ecco
2684      (new namelist ecco_cost_nml)
2685    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2686    
2687    checkpoint51t_post
2688    o this is the pre-merge tag of the ecco-branch
2689    
2690    checkpoint51s_post
2691    o cleanup: removed various obsolete #define-s
2692    o pkg/grdchk
2693      - renamed 'ph-grd 3' to 'grad-res'
2694      - merged from ecco-branch
2695        (remaining bug fixes for obcs gradient checks)
2696      - additional high-precision output for testreport
2697        (grep for 'precision_grdchk_result')
2698    
2699    checkpoint51r_post
2700    o cleaned up or removed CPP_OPTIONS.h files
2701    o updated results for some of the tests to reflect the new
2702      optfiles (-ieee: -O0 instead of -O3)
2703    
2704    checkpoint51q_post
2705    o cd_code:
2706      - moved cd_scheme.F -> cd_code_scheme.F
2707      - separate read_checkpoint from cd_code_ini_vars.F
2708      - separated cd_code part from write_checkpoint
2709      - updated AD_SOURCE, generated .flow
2710      - added CD_CODE_VARS.h to the_main_loop
2711      - Moving cd_code specific store dir.s to pkg/cd_code
2712    o ctrl package totally restructured
2713      - pack/unpack now optional and decoupled from
2714        xx_/adxx_ I/O
2715      - ctrl_pack/unpack cleaned
2716        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2717      - confined inclusion of AD_CONFIG.h to where necessary.
2718    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2719    
2720    checkpoint51p_post
2721    o create initial cd_code package
2722      - WARNING: the initialization of fields within packages
2723        is broken because INI_FIELDS (where READ_CHECKPOINT is
2724        called) is called *before* PACKAGES_INIT_VARIABLES.
2725        This seems to be backwards since
2726        1) its important to initially zero the entire field including
2727           the "halo" region
2728        2) zeroing needs to be done *before* reading pickup info
2729           and the pickup call might or might not happen in any
2730           particular run
2731      - this needs an overhaul for R2
2732    o cleanup verification/*/code/GMREDI_OPTIONS.h
2733    o cleanup testreport
2734    
2735    checkpoint51o_post
2736    o bringing AD-related verif's up to date with genmake2
2737      - carbon/
2738      - global_ocean.90x40x15/
2739      - hs.94.1x64x5/
2740      - (front_relax/ )
2741    o (more) consistent directory structure for AD-related verif.'s
2742    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2743    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2744    o bug fix in find_alpha.F for MDJWF:
2745      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2746        change rho -> rho-rhoConst
2747      - replace call find_rho to find_rhonum
2748    o initialisation of rFlx extended to full array (required by TAF)
2749      and shifted to thermodynamics
2750    o removed PTRACERS.h in ptracers routine
2751    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2752    o Correcting initialisations for fVerU, fVerV.
2753    o helping TAF to recognize dependency on kUp for
2754      fVerU, fVerV
2755    o Replacing delZ by delR in pkg/ctrl/
2756    checkpoint51o_pre
2757    
2758    o undid all of cp51 pending some cleanups and discussion
2759    o added the [#include "AD_CONFIG.h"] statement to all files that need
2760       it for adjoint/tl #defines
2761     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2762     o removed tools/genmake since it no longer works
2763    
2764    checkpoint51n_post
2765    o modifications to make FREEZE flux visible to pkg/kpp
2766      - moved surfaceTendencyTice from pkg/seaice to main code
2767      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2768      - subroutine FREEZE now limits only surface temperature
2769        (this means new output.txt for global_ocean.90x40x15,
2770         global_ocean.cs32x15, and global_with_exf)
2771    o added surface flux output variables to TIMEAVE_STATVARS
2772    
2773    checkpoint51n_pre
2774    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2775    o added [#include "AD_CONFIG.h"] to all files that use the following
2776      defines:
2777      - ALLOW_ADJOINT_RUN
2778      - ALLOW_TANGENTLINEAR_RUN
2779      - ALLOW_ECCO_OPTIMIZATION
2780    
2781    checkpoint51m_post
2782    o incorporating changes to get TAMC/TAF working in genmake2
2783      - added new TAMC/TAF targets to the Makefile
2784      - various cleanups related to package handling
2785      - these changes should have no impact on the forward model
2786    
2787    checkpoint51l_post
2788    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2789     - faster algorithm for cal_addtime.F
2790     - higher precision arithmetic, where needed
2791     - pkg/exf *startdate variables changed from calendar date to
2792       model integration time
2793    
2794    checkpoint51l_pre
2795    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2796    o enable to apply restoring on S & T only in a latitude band.
2797    o update output (external_forcing_surf modif. change truncation errors)
2798       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2799    
2800    checkpoint51k_post
2801    o change default to: useNHMTerms=.FALSE.
2802     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2803       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2804     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2805        exp1, ideal_2D_oce
2806     - change data file of oceanic exp (leave the results unchanged for now)
2807       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2808    o set gravitySign automatically according to the vertical coordinate used
2809      (and change sign: back to "logical" value: +1 when R increases downward)
2810    o added an include barrier to the default CPP_OPTIONS.h and
2811      removed the #include "PACKAGES_CONFIG.h" from it
2812    o fix a bug in mom_fluxform (from chk51j_post)
2813    
2814    checkpoint51j_post
2815    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2816    o adjusted some flow directives (dynamics, thermodynamics)
2817    o added cubed-sphere case to test cost function
2818    o heckpoint_lev?_directives.h now include
2819      pkg-specific directives, whenever those are enabled.
2820    o Moving pkg-specific flow directives to corresponding pkg
2821      Moving pkg-specific differentiation list to corresponding pkg
2822      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2823      ---> conventions are
2824           - pkg_ad.flow
2825           - pkg_ad_diff.list
2826           - pkg_ad_check_lev?_dir.h
2827    
2828    checkpoint51i_post
2829    o merge of the branch-genmake2
2830      - knowingly breaks the older genmake
2831      - automatic generation of all ALLOW_${PKG_NAME} defines
2832      - new testreport supersedes older testscript
2833    o large number of package inclusion and header cleanups
2834    checkpoint51i_pre
2835    
2836    o new output for adjoin of global ocean vector invariant
2837    o fix for checkpoint of thermodynamic seaice and bulk_force
2838    o Steph gchem various cleanups
2839    
2840    checkpoint 51h_pre
2841    o fixed some single quotes
2842    o modify gchem pkg to be more versatile
2843    o modifications to clean up dic pkg
2844    o add pkg/cfc
2845    
2846    checkpoint51g_post
2847    o provide links for ARPACK and ADM*TLM
2848    o start removing verification/vero/
2849    o update AD-related stuff
2850      (in particular some IF-statements in model/src/ routines)
2851    o adding to verification/global_ocean.90x40x15/ adjoint of
2852      vector invariant setup
2853    
2854    checkpoint51f_post
2855    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2856    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2857      of tracer Green's fucntions for ocean inversion project.
2858    
2859    checkpoint51f_pre
2860    o Added on-the-fly spatial interpolation capability
2861        "USE_EXF_INTERPOLATION" to pkg/exf.
2862      - This is a temporary Cartesian-grid hack until
2863        the super-duper ESMF coupler becomes available.
2864      - See verification/global_with_exf/README for usage example.
2865      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2866        flags and modified pkg/seaice accordingly.
2867    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2868        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2869        non-local transport term.
2870    
2871    checkpoint51e_post
2872    o pkg/mom_vecinv:
2873      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2874      - add time-ave diagnostic of vorticity advection.
2875    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2876    o atmospheric geopotential: - include water vapor effect;
2877                                - use p^kappa in p* scaling.
2878    o land pkg: read initial state from files.
2879    o AIM : add stratospheric drag in the upper level
2880    
2881    checkpoint51d_post
2882    o change function ILNBLNK (=> last non-blank char.) to return zero
2883      (instead of the string length) when the string. char is empty
2884    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2885    o modif's to restore TAMC compatibility
2886      - avoid "_d" constructs in PARAMETER declarations
2887      - avoid interrupting lines by comment lines
2888    o Use cluster local disks for purely local I/O
2889      vs. globally visible disks needed for ctrl stuff
2890      (merged from ecco-branch)
2891      - new active_file_loc... and mdsio_..._loc routines
2892      - affected packages: autodiff, ctrl, grdchk, mdsio
2893    
2894    checkpoint51c_post
2895    o introducing integer flag debugLevel
2896      - debLevZero: suppress all output
2897      - debLevA: standard
2898      - debLevB: equivalent to current debugMode=.TRUE.
2899    o introducing pathname variable mdsioLocalDir for mdsio
2900      that can be specified at runtime
2901      (relevant for cluster I/O to local disk)
2902    `
2903    >>>checkpoint51b_post
2904    adjoint of ptracers
2905    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2906    o extended state in checkpoint_lev?, etc.
2907    o alternative ctrl/cost with tr1 or ptracer
2908    o new comlev1_bibj_ptracers
2909    o new ptracers.flow
2910    o made ptracers_forcing same as external_forcing_s
2911    o added verification for adjoint with ptracers
2912      - adm. grdchk fail so far
2913      - tlm. grdchk OK
2914      - checked tapelev/comlev recomputations: OK
2915    <<<checkpoint51b_pre
2916    
2917    checkpoint51a_post
2918    o added code for biogeochemistry package
2919      - new pkgs: dic, gchem
2920      - new subroutine in ptracers
2921    o modify code for biogeo packages
2922      - in model/src and pkg/ptracers
2923    
2924    checkpoint51
2925    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2926      - autodiff, ctrl, exf, grdchk, seaice
2927      kept separate packages
2928      - cost, ecco, obcs
2929    o updating verification/internal_wave, verification/lab_sea
2930      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2931    
2932    checkpoint50i_post
2933    o Preparing next differentiable checkpoint and sync
2934      of MAIN vs. ecco-branch
2935      - 1st step: this one is differentiable
2936      - 2nd step: next(! not this) checkpoint will have updated packages
2937                  from ecco-branch)
2938    
2939    checkpoint50h_post
2940    o new package "land": provide surface BC for AIM.
2941    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2942    o AIM: use true log-P extrapolation for near surface temp (= as in
2943        F.Molteni paper) ; update aim.5l_cs output.
2944    o New variable in PARM03 for more flexible pickups
2945    o somewhat cleaned package initialisation sequence for
2946      ctrl/ cost/ ecco/ in packages_... routines
2947    
2948    checkpoint50g_post
2949    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2950      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2951      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2952        made the default because of faster convergence than ADI
2953    
2954    checkpoint50f_post
2955    o exf totally restructured
2956      - replaced all exf_set_ routines by one generic exf_set_gen.F
2957        and made sure it's still differentiable
2958      - split exf_getffields.F into new exf_bulkformulae.F
2959      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2960      - updated adjoint/makefile and relevant verif. accordingly
2961    
2962    checkpoint50f_pre
2963     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2964          + change Evap over land. (update aim.5l_cs output)
2965     o added missing .cvsignores and made uniform across expts
2966     o changed configuration of tidal_basin_2d expt
2967     o added pkg/debug functions for tracing code in fatal crashes
2968     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2969     o new fn in pkg/monitor to stop model if solution grows too big
2970     o removed lots of single quotes from comments
2971    
2972    checkpoint50e_post
2973    o make KPP work with PTRACERS
2974     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2975       nearly a copy of kpp_transport_s
2976     - there is no analogue to SurfaceTendencyS, so I have to use
2977       gPtr(of the surface layer) instead
2978    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2979    checkpoint50e_pre
2980    
2981    checkpoint50d_post
2982    o change kpp output from multiple-record state files to single-record state
2983      files analogous to write_state.F
2984    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2985      analogous to the cg2d-related output.
2986    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2987      so that writing to internal file fn (with length 512) fails.
2988    checkpoint50d_pre
2989    
2990    checkpoint50c_post
2991    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2992    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2993    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2994    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2995    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2996    
2997    checkpoint50c_pre
2998    Merging from release1_p13:
2999    o bug fix for pkg/seaice dynamic solver
3000    o Added SEAICE_initialHEFF to pkg/seaice
3001    
3002    checkpoint50b_post
3003    o store u*,v* in gU,V instead of in guNm1,gvNm1
3004    o in order to put the momForcing out of the Adams-Bashforth:
3005      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
3006      to timestep.F
3007    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
3008    o re-generate output for highly sensitive test-exp:
3009       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
3010    
3011    checkpoint50b_pre
3012    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
3013    o corrected CPP option mismatch in exf_Bulk... functions for case
3014      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
3015    
3016    checkpoint50a_post
3017    o Bug fix for merging between c50 and KPP.
3018      ikey was passed from thermodynamics to kpp_calc via
3019      common block rather than being recomputed in kpp_calc,
3020      in contradiction with new key itdkey.
3021      New key ikppkey created, and tamc.h headers updated.
3022    
3023    checkpoint50
3024    - 2nd step of merge with ecco-branch:
3025      merge changes in ecco-branch back into main trunk
3026    - bug fix in find_alpha
3027    - more storing in gmredi_calc_tensor.F, kpp_routines.F
3028    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
3029    - merged some sliced AD support routines
3030    
3031    checkpoint49
3032    merged from ecco-branch:
3033    o exf:
3034      - Enable initialisation of forcing fields to constant
3035        (runtime) values.
3036      - in exf_getffields.F
3037        Reduce i-/j-loop to interior domain, discarding overlaps.
3038        That also fixes wrong TAF-key computations for key_1, key_2
3039        with bulf formulae.
3040      - exf_init.F modify #ifdef for exf_init_evap
3041      - exf_getffieldrec.F, ctrl_getrec.F
3042        The following INT-usages are not safe:
3043          fldsecs  = int(fldsecs/fldperiod)*fldperiod
3044          fldcount = int(fldsecs/fldperiod) + 1
3045        and were modified.
3046    o autodiff: checkpoint_lev...
3047      - updated storing for bulk formulae (some arrays were missing)
3048      - added state for seaice package
3049      - synchronized with main branch
3050    o DIVA:
3051      Modif.s in
3052      - the_main_loop.F
3053      - the_model_main.F
3054      and added cost_final_restore.F cost_final_store.F
3055      o With these changes, it is possible to fully separate
3056        the first forward run to compute the cost function (mdthe_main_loop)
3057        and adjoint runs over individual DIVA intervals (adthe_main_loop)
3058        into separate model executions.
3059        This enables better tuning of DIVA to given queue sizes.
3060      o Loss of cost function value in consecutive DIVA runs is
3061        fixed by storing to 'costfinal' file.
3062      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
3063        beginning/end of adjoint integration is accounted for.
3064      The current changes apply to TAF-1.4.26.
3065      TAF has one remaining bug, requiring one manual change
3066      (see MITgcm manual).
3067    o cal: synchronized between MAIN and ecco-branch
3068    
3069    checkpoint48i_post
3070    o Changes to restore differentiability of code w.r.t. previous tag
3071      (mostly adding new routines to make list and replacing
3072      pressure by totPhiHyd).
3073    o Updated and merged grdchk package
3074      - has both ADM and TLM checks
3075      - works for single- and multi-proc.
3076      - output cleaned
3077      - worked successfully for parallel DIVA
3078    o genmake:
3079      - Adding -platform=SP4
3080      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
3081    o Modif. for DIVA:
3082      ctrl_unpack should not be called in intermediate DIVA interval.
3083      (similar thing would apply for active files such as
3084      tbar, sbar, psbar, which should not be reinitialised;
3085      only relevant for ecco-branch)
3086    
3087    checkpoint48h_post
3088    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
3089    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
3090    o Added SEAICE_initialHEFF to pkg/seaice
3091    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
3092    
3093    checkpoint48g_post
3094    --- EOS:
3095    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
3096      store total Potential in totPhyHyd for diagnostics & EOS.
3097    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
3098    --- Pressure/geopotential gradient:
3099    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
3100    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
3101      ( changes results of global_ocean_pressure )
3102    o NLFS + z-coord.: add eta*Rho' contribution.
3103    o accurate phiHyd when using interface-W at the middle between 2 centers
3104     ( changes results of ideal_2D_oce )
3105    o includes r* 2nd term in potential gradient.
3106    
3107    checkpoint48f_post
3108    Merging from release1_p12:
3109    o Modifications for using pkg/exf with pkg/seaice
3110      - improved description of the various forcing configurations
3111      - added basic radiation bulk formulae to pkg/exf
3112      - units/sign fix for evap computation in exf_getffields.F
3113      - updated verification/global_with_exf/results/output.txt
3114    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
3115      (SBO) core products, including oceanic mass, center-of-mass,
3116      angular, and bottom pressure (see pkg/sbo/README.sbo).
3117    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
3118      to avoid negative values in shallow regions.
3119      - updated verification/natl_box/results/output.txt
3120      - updated verification/lab_sea/results/output.txt
3121    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
3122    o Added useSingleCpuIO option (see PARAMS.h).
3123    o Updated useSingleCpuIO option in mdsio_writefield.F to
3124      work with multi-field files, e.g., for single-file pickup.
3125    o pkg/seaice:
3126      - bug fix in growth.F: QNET for no shortwave case
3127      - added HeffFile for specifying initial sea-ice thickness
3128      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
3129    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
3130      kpp_transport_t.F, forward_step.F, and the_main_loop.F
3131    o pkg/seaice:
3132      - adjoint-friendly modifications
3133      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
3134    
3135    checkpoint48e_post
3136    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
3137    o dynamics: change definition of computational domain & adapt mom_fluxform
3138      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
3139    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
3140        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
3141        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
3142        global_ocean.90x40x15 global_with_exf global_ocean_pressure
3143        inverted_barometer solid-body.cs-32x32x1
3144      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
3145    
3146    checkpoint48d_post
3147    o in preparation for r*:
3148     a) use pre-computed gradient of hydrostatic potential:
3149        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
3150     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
3151        => affects results of glob_oce_pressure (different truncation error)  
3152      update output.txt of ideal_2D_oce & global_ocean_pressure
3153    
3154    checkpoint48d_pre
3155    o in preparation for r*:
3156      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
3157      pass the 2 comp. of the grad. as arguments to momentum S/R.
3158      but for the moment, only used if it does not change the results.
3159    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
3160    
3161    checkpoint48c_post
3162    Modifications in treatment of initial flux forcing controls
3163    to avoid extra storing of flux fields.
3164    
3165    checkpoint48c_pre
3166    o Added tidal_basin_2d experiment (currently 1D!)
3167    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
3168    
3169    checkpoint48b_post
3170    o r* coordinate added in #ifdef NONLIN_FRSURF block.
3171     (modification to pressure gradient not yet implemented)
3172    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
3173      (for U & V) that are used for vertical advection of momentum.
3174    
3175    checkpoint48a_post
3176    o In preparation for r*, use temp. array to compute vertical transport
3177       in flux-form momentum pkg. => change results of few test-exp.
3178      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
3179                        lab_sea, natl_box & plume_on_slope
3180    
3181    checkpoint48
3182    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
3183    
3184    checkpoint47j_post
3185    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
3186    o moved adexch from forward_step to addummy_in_stepping
3187    o added exch in ctrl_map_...
3188    o aveFreq.=0. at end of cost_final to avoid overwrite in
3189      reverse checkpointing loop
3190    o Yet more changes in gmredi:
3191      * adgmredi_calc_tensor
3192        avoiding all recomputation of gmredi_slope_limit
3193      * adgmredi_x/y/rtransport
3194        added flag for excessive storing to avoid recomp. of
3195        u/v/rtans, dTdx/y/z
3196        -> this is not really necessary and very memory-consuming
3197      * adgmredi_slope_psi:
3198        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
3199      * gmredi_slope_limit
3200        re-activated full calculation of taperfct for case 'ac02'
3201    o updating verification/ adjoints of carbon, global_ocean.90x40x15
3202    
3203    checkpoint47i_post
3204    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
3205    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
3206      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
3207    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
3208    o gmredi: fix few bugs.
3209    
3210    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
3211    This will be a good checkpoint to plug into the ecco-branch.
3212    o few modif.'s to get latest version adjointed
3213      (mainly kick out code in ini_linear_phisurf)
3214    o modif's to run adjoint with exactConserv
3215    o case GM_BOLUS_ADVEC should be cleaned
3216      S/R gmredi_slope_psi should be cleaned
3217    o verification/carbon now has exactConserv=.TRUE.
3218    
3219    checkpoint47g_post
3220    o time-average AIM output: becomes independent from statvars time-average
3221      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
3222    o After TAF bug fix:
3223      Tested adjoint of gmredi package.
3224      Tests were done with checkpoint47 rather than with latest
3225      checkpoint47f_post since the latter is broken for the adjoint
3226      verification/carbon/ contains both ADM and TLM gradient checks.
3227    Here they are, before they get changed/lost/stolen.
3228    Mostly modif.'s to fix numerical sensitivities.
3229    Gradient checks OK for
3230    - GM_taper_scheme:
3231      * clipping
3232      * ac02
3233      * linear
3234      * glw91
3235      * dm95
3236      * ldd97
3237    - GMREDI_OPTIONS:
3238      * GM_VISBECK_VARIABLE_K
3239      * GM_NON_UNITY_DIAGONAL
3240      * GM_EXTRA_DIAGONAL
3241      * GM_BOLUS_ADVEC
3242    in conjunction with data.gmredi parameters to be checked in
3243    in a few minutes under verification/carbon/code/
3244    
3245    checkpoint47f_post
3246    Merging from release1_p10:
3247    o modifications for using pkg/exf with pkg/seaice
3248      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
3249        and SEAICE_EXTERNAL_FLUXES
3250      - pkg/exf CPP options EXF_READ_EVAP and
3251        EXF_NO_BULK_COMPUTATIONS
3252      - usage examples are Experiments 8 and 9 in
3253        verification/lab_sea/README
3254      - verification/lab_sea default experiment now uses
3255        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
3256    
3257    checkpoint47e_post
3258    o created a tag prior to creating a branch
3259    
3260    checkpoint47d_post
3261    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
3262      at the bottom boundary had an erroneous half slip boundary condition
3263    o added bottom drag and no slip boundary condition capabilities to
3264      oceanic pressure coordinates code
3265    o added new verification experiment global_ocean_pressure, this experiment is
3266      also described in the tutorial section of the manual
3267    checkpoint47d_pre
3268    
3269    checkpoint47c_post
3270    o Added a verification experiment for a global cubed-sphere ocean run
3271      -  verification/global_ocean.cubed32x32x30
3272      -  uses pkg/therm_seaice and pkg/bulk_forcing
3273    
3274    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
3275    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
3276      when using P-coordinate; only implemented for atmospheric config.
3277    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
3278      NOTES: requires option NONLIN_FRSURF to be "#define".
3279    o update advect_xz/results/output.txt (left from checkpoint44g_post)
3280    
3281    checkpoint47b_post
3282    Merging from release1_p9:
3283    o pkg/seaice
3284      - removed GOTO's and added taf directives
3285      - double precision constants to reduce the g77 (Linux)
3286        to F77 (SGI) differences reported in release1_p8
3287    o tools/genmake
3288      - added SGI options
3289    o verification/testscript
3290      - updated to that of checkpoint47a_post
3291    o verification/global_ocean.90x40x15/input/eedata
3292      - modified for SGI f77 compatibility
3293    o verification/lab_sea
3294      - added description of sea-ice model
3295      - added missing matlab routines
3296      - added test of thermodynamics parallelization
3297    
3298    checkpoint47a_post
3299    o new pkg: aim_v23
3300     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
3301       for now, keep the same surface forcing as before.
3302     - Part-Cell implemented into AIM; check that Heat & Water are conserved
3303     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
3304     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
3305    o add diagnostic of surface correction term in monitor output
3306    
3307    o bulk_force and therm_seaice
3308    - Two packages:  bulk_force (Bulk forcing)
3309      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
3310    - Earlier integration from Stephaine Dutkiewicz
3311      and Patrick Heimbach.
3312    - Two ifdef statements for compile time,
3313       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
3314    
3315    checkpoint47
3316    differentiable version of checkpoint46n_post
3317    o bug fix in quasihydrostaticterms
3318    o * "clean" adjoint code (in terms of extensive recomputations)
3319        can now be obtained for all GMREDI options (i.e. for
3320        - GM_VISBECK_VARIABLE_K
3321        - GM_NON_UNITY_DIAGONAL
3322        - GM_EXTRA_DIAGONAL
3323        - GM_BOLUS_ADVEC )
3324      * However, wrong gradient check problem remains unsolved.
3325      * New CPP options have been introduced for different
3326        tapering schemes
3327    o external_fields_load now part of differentiation list
3328    o pressure needs multiple storing;
3329      would be nice to have store_pressure at beginning or
3330      end of forward_step, e.g. by having phiHyd global (5-dim.)
3331      (NB: pressure is needed for certain cases in find_rho,
3332      which is also invoked through convective_adjustment).
3333    o recomputations in find_rho for cases
3334     'JMD95'/'UNESCO' or 'MDJWF' are OK.
3335    o #define ATMOSPHERIC_LOADING should be differentiable
3336    o ini_forcing shifted to begining of initialise_varia
3337    o Incorporating QNVS line search routines into MITgcm
3338      (this is separate code, and therefore not under pkg)
3339      lsopt/, optim/
3340    o Updated verification/carbon/
3341      - #define GM_VISBECK_VARIABLE_K
3342      - GM_taper_scheme    = 'ldd97'    
3343    
3344    checkpoint46n_post
3345    Merging from release1_p8:
3346    o verification/natl_box:
3347      updating new external_fields_load routine
3348    o New package: pkg/seaice
3349      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
3350      The sea-ice code is based on Hibler (1979-1980).
3351      Two sea-ice dynamic solvers, ADI and LSR, are included.
3352      In addition to computing prognostic sea-ice variables and diagnosing
3353      the forcing/external data fields that drive the ocean model,
3354      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
3355      The implied surface heat flux is then stored in variable
3356      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
3357      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
3358      non-local transport term.  Because this call precedes model
3359      thermodynamics, temperature under sea-ice may not be "exactly" at
3360      the freezing point by the time theta is dumped or time-averaged.
3361      N.B.: fairly large differences in accuracy occur across
3362            different platforms/compilers; comparison between
3363            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
3364            generated output gives:
3365       T           S           U           V
3366      C D M    c        m  s        m  s        m  s        m  s
3367      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
3368      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
3369      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
3370    
3371      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
3372    o GAD:
3373      - generated new common blocks to account for call of
3374        same gad routines with differing traceridentities
3375        (needed to modify tracerIdentity indices in GAD.h)
3376      - generated separate common blocks for case useCubedSphereExchange
3377        (Department of Futurology)
3378      - parameter lists to gmredi_?transport: added tracerIdentity
3379      - added new key indices to tamc.h
3380    o external_fields_load:
3381      - added this routine to TAF list
3382      - needed to make some common blocks global and additional storing
3383        along the same lines as exf package (checkpoint_lev?_directives.h)
3384    o exf:
3385      updated external forcing package
3386      - bug fixes carried over from ecco-branch
3387        (missing OBCS_OPTIONS.h in two routines)
3388      - enable easy to use "no forcing".
3389      - added exf I/O for atmospheric loading
3390      - added exf I/O for runoff data
3391      - transfered scaling between exf <-> MITgcm to exf namelist
3392    o Adding new verification experiment global_with_exf.
3393      This verification experiment is almost identical to the
3394      global_ocean.90x40x15 experiment, except that it uses
3395      the exf (and cal) package instead of the
3396      external_fields_load routine (cf README file).
3397    
3398    checkpoint46m_post
3399    o modified testscript to return -- when there are no lines of "%MON" output
3400    o added new flag "quasiHydrostatic" for QH mode
3401      and new routine quasihydrostaticterms()
3402    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
3403      New routine: mom_u_coriolis_nh()
3404    o fixed sign of non-hydrostatic metric terms in u and v equations.
3405      Depend on correct sign of gravitySign.
3406    o added work.pc* to .cvsignore in aim directories using ifc
3407    o introduced flag for controllin non-hydrostatic metric terms
3408    o removed gravitySign from PARM04
3409    o switched to g77/ifc from pgf77 in aim experiments
3410    
3411    checkpoint46l_post
3412    o made convective adjustment work with pressure coordinates:
3413     - changed the direction of k-loop in convective_adjustment.F for the
3414       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
3415     - adjusted the reference pressure k-index in convective_adjustment.F
3416     - adjusted the convection condition in convect.F (in analogy to
3417       calc_ivdc.F)
3418     - convective_adjustment no longer computes anything on the halos
3419     - removed the warnings about negative salinity from find_rho.F and
3420       find_alpha.F; instead the new routine look_for_neg_salinity, called
3421       at the beginning of find_rho, find_alpha, and find_beta, does a
3422       check of the entire slice, if CPP-option
3423       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
3424    checkpoint46l_pre
3425    
3426    checkpoint46k_post
3427    o fixed the verification/global_ocean.90x40x15 experiment:
3428     - new bathymetry (the world according to A., JMC, and M.)
3429     - new initial fields and forcing fields (*.bin files)
3430     - new POLY3.COEFFS (for the next release one should switch to a full
3431       equation of state: JMD95P or MDJWF)
3432     - fixed several errors and redundancies in the data file
3433     - experiment uses looped cells
3434     - added matlab directory with diagnostic scripts for plotting of output
3435    
3436    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
3437     - read AIM physics parameters from a file (data.aimphys)
3438     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
3439    
3440    checkpoint46j_post
3441    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
3442    o move wVel computation at the end of the time step, in S/R integr_continuity
3443    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
3444    o update timeave pkg for wVel diagnostic.
3445    checkpoint46j_pre
3446    
3447    checkpoint46i_post
3448    o Clean up AIM package (and keep the results unchanged):
3449      include CPP_OPTION and use IMPLICT NONE in all routines ;
3450      declare all the variables _RL ; use _d 0 for all numerical constants.
3451      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
3452    
3453    checkpoint46h_post
3454    o cleaned up the use of rhoNil and rhoConst.
3455      - rhoNil should only appear in the LINEAR equation of state, everywhere
3456        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
3457        and the dynamical equations are all divided by rhoConst
3458    o introduced new parameter rhoConstFresh, a reference density of fresh
3459      water, to remove the fresh water flux's dependence on rhoNil. The default
3460      value is 999.8 kg/m^3
3461    o cleanup up external_forcing.F and external_forcing_surf.F
3462      - can now be used by both OCEANIC and OCEANICP
3463    checkpoint46h_pre
3464    
3465     Added code to convert surface volume flux (fresh water) into
3466     a mass flux when using P coordinates in the ocean (OCEANICP).
3467     Note: It assumes you have set rho0=rhoConst=density of fresh water.
3468    
3469    checkpoint46g_post
3470    o Include a new diagnostic variable phiHydLow for the ocean model
3471      - in z-coordinates, it is the bottom pressure anomaly
3472      - in p-coordinates, it is the sea surface elevation
3473      - in both cases, these variable have global drift, reflecting the mass
3474        drift in z-coordinates and the volume drift in p-coordinates
3475      - included time averaging for phiHydLow, be aware of the drift!
3476    o depth-dependent computation of Bo_surf for pressure coordinates
3477      in the ocean (buoyancyRelation='OCEANICP')
3478      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
3479        Theta, Salinity, and Pressure in the parameter list. This routine is
3480        presently contained in find_rho.F. This routine does not give the
3481        correct density for 'POLY3', which would be a z-dependent reference
3482        density.
3483    o cleaned up find_rho
3484      - removed obsolete 'eqn' from the parameter list.
3485    o added two new verification experiments: gop and goz
3486      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
3487    checkpoint46g_pre
3488    
3489    checkpoint46f_post
3490    o Enable tangent linear (forward mode) gradient checks:
3491      - extended active file handling to g_... files
3492      - added TANGENT_SIMULATION to theSimulationMode
3493      - extended grdchk package accordingly
3494    o added tangent linear setup in verification/carbon/code_ftl
3495    o added adjoint setup in verification/front_relax/code_ad
3496    
3497    checkpoint46e_post
3498    o Added new equation of state -> MDJWF
3499      - EOS of McDougall et al., 2002, JAOT, submitted
3500      - caveat: the equation of state is only valid for a smaller (more
3501        realistic?) range of values than JMD95P/Z and UNESCO
3502      - added masks to the calculation of pressure in store_pressure
3503      - added more check values for density in check_eos (ini_eos.F), some of
3504        the old check values are out of the range of the MDJWF-eos, so don't
3505        expect perfect matches for those
3506    checkpoint46e_pre
3507    
3508    checkpoint46d_post
3509    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
3510      'OCEANICP', also initialised field pressure correctly in ini_eos in the
3511      case of pressure coordinates. eosType='JMD95Z' in
3512      combination with buoyancyRelation='OCEANICP' now causes an error.
3513    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3514      in find_alpha/beta.
3515    checkpoint46d_pre
3516    
3517    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3518      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
3519    
3520    checkpoint46c_post
3521    o Changes necessary for ocean in p-coordinates
3522     -  Added new buoyancy relation = 'OCEANICP'
3523     -  Added new parameters = gravitySign (this used to be contained inside
3524        the factor dRdZ which I added when we first switched to R coordinates).
3525     X GM/Redi is not compatible (yet)
3526     X bottom drag and no-slip need to be debugged.
3527    checkpoint46c_pre
3528    
3529    checkpoint46b_post
3530    o Added new equation of state -> JMD95Z and JMD95P
3531      - EOS of Jackett and McDougall, 1995, JAOT
3532      - moved all EOS parameters into EOS.h
3533      - new routines ini_eos.F, store_pressure.F
3534    o Added UNESCO EOS, but not recommended because it requires
3535      in-situ temperature (see JMD95)
3536    o Modified formatting for knudsen2.f in utils/knudsen2 and added
3537      unesco.f to be used with POLY3
3538    checkpoint46b_pre
3539    
3540    checkpoint46a_post
3541    o Added (atmospheric) pressure loading
3542      - new field in FFIELDS.h, etc...
3543      - new cpp flag ATMOSPHERIC_LOADING
3544    o Changed hFacC to _hFacC in calc_phi_hyd.F
3545    o Added SHORTWAVE_HEATING to some files for consistency
3546    checkpoint46a_pre
3547    
3548    checkpoint46
3549    further merges from release1_p5
3550    o new ctrl package
3551      - adopted from ECCO environment to enable optimization
3552      - added Eliassen Palm fluxes to controls
3553    o added Eliassen Palm flux controls to gradient check package
3554    o cost package
3555      - Compatible with new ctrl package
3556      - added Eliassen Palm cost hooks
3557      - modif's of existing cost functions
3558    o Adjoint-related bug fixes in kpp:
3559      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
3560      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
3561    o autodiff package
3562      - flow directives:
3563        + new for S/R do_the_model_io
3564        + enhanced for S/R checkpoint
3565        + new gmredi.flow
3566      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
3567        disable adcommon.h/g_common.h by default.
3568      - fixed problem for adjoint of global_max
3569    o modified verification/carbon/
3570    o New setup for adjoint of global_ocean
3571    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
3572    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
3573    o incorporated hooks for sponge layer code (external_forcing.F)
3574    
3575    checkpoint45d_post
3576    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
3577    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
3578      (affects plume_on_slope "cg2d" output)
3579    o add new parameter deltaTfreesurf for free-surface time stepping
3580    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
3581  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
3582  o change phiMin in exp1 (to agree with documentation)  o change phiMin in exp1 (to agree with documentation)
3583  o add new flags:  o add new flags:

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