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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 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:  o GMredi:
2018    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - 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.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 2022  o GCHEM:
2022    - move call to GCHEM_FORCING_SEP, so that it is now called before    - 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      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2024    - introduced a useGCHEM runtime flag and applied it everywhere.    - 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  o small cleaning of exch2: remove files that are also in eesupp/src
2035    
2036  checkpoint56  checkpoint56

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