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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.1042 by jmc, Thu Nov 20 22:52:06 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/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
8      update results of global_ocean.cs32x15.icedyn test.
9    o move getcon.F from model/src to pkg/fizhi.
10    o pkg/exf: add parameter for extrapolation of temp up to the surface
11       and option to prevent negative evap (in bulk_largeyeager04 only).
12    o Prather Advection scheme: fix tracer conservation for divergent flow
13      (e.g., when using NonLin Free-Surface).
14    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
15    o gmredi (Visbeck-variable-K):
16     - add more parameters to Visbeck-variable-K.
17     - use a 5 points average for dSigmaR in Visbeck-K calculation
18       (more "homogenous": same stencil and same weights as in dSigmaH)
19     - update output of ideal_2D_oce experiment.
20    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
21      (#undef REAL4_IS_SLOW)
22     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
23       coordinate variable
24     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
25       (surface forcing fields), removes some of the functionality
26     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
27     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
28       probably not all: copy _RS surface flux fields to RL field before
29       calling DIAGNOSTICS_FILL
30     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
31       real*4 (CALL EXCH_*_RS) versions.
32     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
33       (generate new output).
34    
35    checkpoint61e
36    o gmredi (Visbeck-variable-K):
37      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
38      - change computation of Visbeck-K where Slope > Smax :        
39        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
40        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
41    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
42      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
43    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
44    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
45      does not become too large (to avoid precision problems in implicit-diffusion
46      solver); update ideal_2D_oce output.
47    o pkg ggl90:
48      - in ggl90_cal.F: compute only one set of visc/diff, used to
49        step forward TKE/T/S/momentum
50      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
51        have Prandlt =1)
52    o gmredi (fm07):
53      - add lower limit on Transition layer thickness + lower limit on 1/lambda
54      - allow to set few more params from data.gmredi
55    o pkg ggl90:
56          - add missing sqrt(2) factor in computation of mixing length
57            scale in ggl90_calc.F
58            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
59    
60    checkpoint61d
61    o adjoint modifs
62      - adapt to new field rhoInSitu
63      - allow to revert from StoreDynVars2D, StoreDynVars3D
64        to individual fields
65        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
66    o store 3-D (in-situ) density in commom block (DYNVARS.h)
67     - save 1 rho computation.
68     - no longer modify T & S inland when using down_slope pkg.
69    o gad_som : allow to switch to SOM advection for T & S without corresponding
70      pickup files (using new S/R: MDS_CHECK4FILE).
71    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
72      (for useSingleCpuIO to work in multi-threaded)
73    o pkg/shelfice:
74     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
75       with SHELFICEtopoFile in data.shelfice
76     - move code for reading ice shelf topography and modifying hFacC into separate
77       subroutines of the shelfice package
78     - separate initialisation of "fixed" and "variable" variables
79     - kTopC is not (yet) replaced by kSurfC, although this is possible
80    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
81    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
82      and rename:
83      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
84      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
85    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
86    
87    checkpoint61c
88    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
89      to add mass source/sink of fluid in the interior (3-D generalisation
90      of oceanic real-fresh water flux).
91    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
92    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
93    o new pkg: down_slope
94      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
95      - presently, modify T & S inland (dwnslp_calc_rho.F).
96        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
97      - implementation for ocean in P-coords not tested.
98      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
99    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
100      (to facilitate conversion of oceanic pkg to p-coordinate).
101    o change FIND_RHO to FIND_RHO_2D :
102      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
103    o new pkg: cheapaml
104    
105    checkpoint61b
106    o exch2:
107      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
108      - no longer depend on the order sequence (N,S,E,W).
109      - 3rd exchange no longer needed (tested with 24 tiles).
110      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
111      - exch_UV_A-grid readily available (but not yet tested).
112      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
113      (both are no longer needed) in exch_uv: no effect in forward run; but
114       get truncation error differences with adjoint exch.
115    o exch2:
116     - change index-bounds storage (moved from target to local tile,
117       more intuitive this way) ; rename/remove some variables.
118     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
119    
120    checkpoint61a
121    o exch2/matlab-topology-generator:
122      fix bug in index bounds for N-S internal exchange (hard to tell if this
123      had any effect on the solution).
124    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
125      is exceeded
126    o testreport: modify syntax of awk, so that it works also with
127      awk, and not only with nawk and gawk
128    
129    checkpoint61
130    o autodiff
131      Change default for TAF usage by removing argument '-nonew_arg'
132      This changes TAF subroutine argument list (ordering of active var.)
133      Omission of this flag leads to incompatibility w.r.t. TAMC
134      To restore TAMC-compatibility, need following modifs:
135      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
136      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
137      Tested TAF version is 1.9.22
138      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
139    
140    checkpoint60
141    --->>> This is the last checkpoint for which generating the adjoint
142    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
143    --->>> by default.
144    --->>> Future checkpoints will ommit this flag by default.
145    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
146    o pkg/grdchk: Add gradient check to etan0 perturbations.
147    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
148    o pkg/autodiff: more flexibility in zeroadj.
149      model/src: modifying do_oceanic_phys.F accordingly.
150    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
151    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
152      special setup of gmredi for which the adjoint is stable
153      enough for parameter optimization.
154    o bridging the gap between eddy stress and GM.
155      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
156          along with a change in CPP option (now ALLOW_EDDYPSI).
157      -> when using GM w/ GM_AdvForm:
158          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
159          is applied either in the tracer Eq. or in momentum Eq.
160          depending on data.gmredi (intro. GM_InMomAsStress).
161      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
162      The key modifications are in model/src/taueddy_external_forcing.F
163      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
164    
165    checkpoint59r
166    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
167      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
168      fix option to read coriolis(@ cell-corner) from files with CS-grid.
169    o pkg/mnc: add some attributes to standard 1D-coordinate variables
170    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
171      mass points, when using mnc for output
172      - add runtime parameter (missing_value, missing_value_int) to override
173        default (which is the value of getcon('UNDEF'))
174    o pkg/mnc: prepare mnc for the actual use of missing values with the
175      diagnostics package: small fix in mnc_cw_readwrite.template and more
176      initialisation of never used fields
177      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
178      versions
179    o pkg/thsice/thsice_ini_vars.F added default initial values so that
180      thermodynamics sea ice solver does not blow up when some initial fields
181      are missing.
182    o move from external_forcing_surf.F to ini_forcing.F
183      the p-coord. hack consisting in using pLoad to set phi0surf ;
184      update output of tutorial_global_oce_in_p (affected @ truncation level).
185    o Freshen up a bit hs94.1x64x5, notably:
186      remove rotationPeriod and tRef=5*0. (adjoint only), and add
187      exactConserv=.TRUE.
188    o pkg/generic_advdiff:
189      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
190      applies to files where Temperature & Salinity 2nd Order moments are used.
191    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
192      this uses a dynamically allocated internal state data structure
193      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
194      and requires a fortran 90 compiler
195    
196    checkpoint59q
197    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
198       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
199    o Refresh tutorial_global_oce_biogeo, notably:
200      - change bathymetry (put back seamounts in ACC, use hFacs)
201      - change EOS (POLY3 --> JMD95Z)
202      - use Bryan-Lewis vertical diffusivity
203      - use multidimensional advection
204      - remove old virtual virtual in dic pkg, now done through ptracer pkg
205      - change a couple of parameters in dic pkg
206    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
207    o pkg/obcs: change default to OBCSfixTopo = .true.,
208      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
209      - replace "debugMode" with "debugLevel .GE. debLevB"
210    o implementation of TAF directives for gchem,cfc,dic
211    o remove "exp5" (replaced by tutorial_deep_convection).
212    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
213      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
214      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
215      --> changes results in exp4, seaice_obcs
216    o tutorial_deep_convection :
217      update the set-up and increase resolution and domain size ; start
218      from pseudo initial conditions = output at t=120mn in order to see
219      something happening when running testreport.
220    o pkg/seaice: add os7mp as an advection scheme
221                  add check for advection schemes
222                  add a flag for restoring T and S underneath sea ice
223    o pkg/my82: add netcdf-support and diagnostics
224    o thsice pkg:
225      - Now hsMax limits snow height by turning it into ice following
226        flooding scheme (and now conserving energy)
227      - Slight rewriting of the formula in thsice_calc_thick.F
228      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
229      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
230    
231    checkpoint59p
232    o gchem / dic / cfc :
233      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
234      - add new parameter files: "data.dic" & "data.cfc" ;
235      - various re-arrangement in initialisation & header file ;
236      - fix tutorial_global_oce_biogeo for multi-threaded test.
237    o pkg/dic: test for "pickup_dic" file when restarting ;
238      if no pickup-file, can restart with a re-initialised pH (same as it did
239      before) providing pickupStrictlyMatch is set to False.
240    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
241      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
242    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
243      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
244    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
245     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
246       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
247    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
248       scheme to use for vorticty-term ;
249     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
250       (with default selectVortScheme, return to original discretisation)
251     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
252    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
253    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
254      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
255      also fix diagnostics VISCAHW & VISCA4W.
256    
257    checkpoint59o
258    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
259    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
260      move a few statemens out the main loop into separate loops
261    o pkg/shelfice:
262      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
263        (kg/m^2/s), does not break tests, because in verification/isomip,
264        rhoConstFresh=rhoConst (by accident)
265      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
266      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
267        new file model/src/seawater.F, so that they are available for all pkgs.
268      - convert potential temperature into in-situ temperature. This changes the
269        isomip tests => update tests
270    o add a flag writePickupAtEnd (default=true) to be able to suppress
271      writing a pickup at the last timestep
272    o tools/mpack-1.6 :
273      - disable automake (not working) and autoconf (not needed).
274      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
275        also cleaner with much less compilation warnings.
276    o pkg/profiles:
277      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
278      (for "less than 32 characters name" compiler requirement)
279    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
280      conditions that have a different sampling frequency than S/T/U/V obcs
281    o pkg/diagnostics (stats-diags):
282      - fix global Min/Max in case 1 processor get only empty tiles
283    o genmake2: replace (4 times)
284         make genmake_tc_1.o >> genmake_warnings 2>&1
285      with
286         COMM="$CC $CFLAGS -c genmake_tc_1.c"
287         echo $COMM >> genmake_warnings
288         $COMM >> genmake_warnings 2>&1
289      to make genmake2 always see the value of CC as specified in the optfile.
290    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
291      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
292      - modify verification advect_cs test to test SOM-advection on CS-grid.
293    o pkg/ctrl:
294      - Rewrite of ctrl_map_ini_ecco.F,
295        introducing a generic routine (ctrl_map_ini_gen.F).
296      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
297    
298    checkpoint59n
299    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
300      number in dedicate array "hdiag":
301      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
302        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
303      - many small changes (integer format) for large number of diagnostics
304      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
305        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
306    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
307      usingSphericalGrid, this allows to define the rotated grid coordinates
308      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
309      geographical coordinates according to the inverse of the rotation defined
310      by the Euler angles, so that Coriolis parameter and online-interpolation by
311      exf works with the geographical coordinates on XC/YC/XG/YG.
312      Naturally, this feature does not work with all packages, so some
313      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
314      profiles), because there the coordinates are assumed to be regular
315      spherical grid coordinates.
316    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
317      - introduce isopycnal diffusion coefficient control.
318    o tools/adjoint_options:
319      - additional control vector components.
320    o pkg/mnc: have mnc create marginally meaning full coordinate variables
321      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
322    o pkg/mypackage:
323      - add example of read/write pickup for state-var ;
324      - add entry points to the main code for state-vars diags & write-pickup.
325    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
326      transitions for useExfYearlyFields
327      - add new subroutine that determines the file to read from for
328        use*YearlyFields = .TRUE. and .FALSE.
329      - add a verification experiment to global_with_exf that tests
330        useExfYearlyFields with USE_EXF_INTERPOLATION defined
331    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
332      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
333      subroutines (which could be generated from a template, because they are
334      almost identical), for now they are included in obcs_prescribe_read.F for
335      simplicity
336    o pkg/exf:
337      - add a little more diagnostic to exf_interp_read (in analogy to
338        mds_read_field, can be turned off with debugLevel < debugLevA=1)
339      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
340        ugly but fast by unrolling short inner loops, inserting a unroll=8
341        directive in routine lagran, and splitting a loop and making do while the
342        outermost loop (the latter requires the intoduction of index arrays)
343    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
344    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
345      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
346    o verification/seaice_obcs: updated for restart test and latest options
347    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
348      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
349      for now this is only available for the C-grid code and also within
350      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
351    
352    checkpoint59m
353    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
354      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
355    o gad_som : fix flux output (& diagnostics) to have same units as other  
356      advection scheme fluxes (was previously multiplied by deltaT).  
357    o added verification/seaice_obcs both to test seaice open boundaries
358      and to provide an example matlab scrpt for generating them
359    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
360    o pkg/salt_plume: clean up salt_plume_frac.F to
361      remove redundancy in PlumeMethod 1 and 4
362    o pkg/kpp: added saltplume diagnostics
363    o pkg/obcs and pkg/seaice:
364      - do not set uice and vice to zero when OB*icefile are unspecified
365      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
366      - moved seaice tracer obcs after call to seaice_growth
367    o pkg/salt_plume: added various options for salt plume depth
368      criterion and for vertical distribution of the salt
369    
370    checkpoint59l
371    o pkg/ptracers: new version of ptracers pickup:
372      read meta file and write only fields which are needed to restart.
373      ( same logic as main pickup file ; also using pickupStrictlyMatch )
374    o pkg/seaice:
375      - add timescale for melting due to warm mixed layer as a means of
376        setting SEAICE_availHeatFrac more conveniently
377      - add a CPP-flag/runtime parameter check for flooding algorithm
378      - reformulated availHeat in seaice_growth.F to be independent of AREA
379    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
380      unit changes
381    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
382    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
383      SX vector computer.
384    o pkg/seaice:
385      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
386        seaice forcing fields can now be read only through pkg/exf
387      - removed some unused halos
388    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
389    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
390      or U/VICE from U/VWIND before computing U/VSTRESS
391    
392    checkpoint59k
393    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
394      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
395    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
396      all experiments pass when compile with un-initialised var. checking option.
397    o added pkg/salt_plume
398    o script to test restart (for now, in MITgcm_contrib/jmc_script)
399    o pkg/seaice: new read/write pickup version.
400      read meta file and write only fields which are needed to restart.
401      ( same logic as main pickup file ; also using pickupStrictlyMatch )
402    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
403    o lab_sea.hb87: modify the domain & update output.hb87.txt :
404      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
405      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
406      process. Fixed here by closing the domain at the Northern boundary.
407    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
408    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
409      a set of consecutive levels in/from a 3-D array.
410    o pkg/ptracers:
411      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
412      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
413    
414    checkpoint59j
415    o in pkgs: dic, obcs, offline, rbcs:
416      standard way to compute coeff. for time interpolation between 2 time reccords
417      which retains full precision (& make results less dependent on compiler).
418      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
419    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
420      packages instead of reading ice cover and wind speed separately
421    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
422     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
423      to allow to compile customized code before the update)
424    o cleaning-up:
425      - fix CPP instruction syntax in pkg/obcs
426      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
427        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
428      - fix some threads issue in IO parts.
429    o pkg/dic:
430      - add tons of "_d 0" (--> much better testreports !)
431       and then update outputs of tutorial_global_oce_biogeo
432    o pkg/mom_fluxform:
433      add a special version of momentum advection intended to conserve momentum
434      next to a bathymetry step or a coastline edge. (default = off = #undef)
435    o new read/write pickup version:
436      - for now, only implemented for main (mdsio) pickup file.
437      - write out only what is needed to restart; merge pickup_nh , pickup_ph
438        and main pickup together.
439      - read meta file; read only what is needed to restart; stop if a field
440        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
441        if it make sense (even if the restart is not perfect).
442      - if no meta file, assume that pickup to read corresponds exactly to
443        a pickup that would currently be written.
444      - read pickup written in the old format (until checkpoint59i) if it
445        recognizes an old meta file (no field-list).
446      - add a meta file in exp. which starts from a pickup: 2 cases:
447        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
448         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
449        b) a meta file describing the content of the associated pickup file
450         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
451    o pkg/mdsio & pkg/rw:
452      - new routine to read a meta file ; new set of routine to read
453        Multiple-fields file (with meta file).
454    o added open boundary conditions capability for seaice
455        HSNOW, HSALT, UICE, and VICE
456    
457    checkpoint59i
458    o adjoint:
459      * fix multiDimAdvection adjoint
460        (partial recomputation problem by TAF for fVerT(:,:,kDown)
461        and comlev1 size definition (maxpass vs. max. number of tracers)
462      * verification/global_ocean.90x45x15 adjoint now tests
463        NLFS and multiDimAdvection using DST3 (=30)
464      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
465    o pkg/kpp: add "_d 0" to real constant (if missing);
466      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
467      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
468    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
469      for internal parameters related to restart process (formerly from PARAMS.h)
470      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
471    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
472      as argument. (only atm2d & obcs write_pickup have not yet been updated)
473    o pkg/monitor:
474      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
475      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
476      - account for deep Atmosphere factor and density factor (anelastic)
477    o added open boundary conditions capability for seaice HEFF and AREA
478    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
479      thermodynamics
480      - requires a little reorganization, which affects the testreport results
481        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
482        so that now the conservative form is tested
483      - add a few comments
484    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
485    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
486    o add new diagnostics to seaice: advective, diffusive fluxes (only for
487      multidim-advection, for scheme 2 they are not filled) and transports,
488      thermodynamic growth rates
489    o change units of EmPmR (inside the code, + within coupling interface)
490      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
491      Affects results @ truncation level (cg2d match) and update output of
492       experiments: lab_sea(6), global_ocean.90x40x15(10),
493      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
494      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
495      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
496      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
497    
498    checkpoint59h
499    o pkg/exf:
500      - improve vectorization by moving if-statement out of loops in
501        exf_mapfields, exf_radiation
502      - exf_bulkformulae.F: introduce 2D fields and vectorize code
503    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
504    o testreport:
505      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
506        monitor & update offline_exf_seaice exp. output.
507      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
508    o pkg/seaice:
509      - bug fix in the evp solver: boundary conditions were affected be
510        masking of zMax/zMin (changes results)
511      - minor bug fix in boundary conditions in seaice_calc_strainrates
512        (changes results for no_slip)
513      - seaice_lsr.F: make interpolation of eta dependent on boundaries
514      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
515      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
516        stress formulation and no-slip boundary conditions
517    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
518      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
519    o pkg/seaice: a first HSALT time stepping equation has been checked in
520    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
521      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
522      without requiring DO-IF statements
523    o pkg/thsice:
524      use continuous power-law function for partition of energy between lateral
525      melting/freezing and thinning/thickening ; old code using step function
526      still available with #undef THSICE_FRACEN_POWERLAW
527      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
528    o testreport: change AD testing : check against results/output_adm.txt
529      using same scripts as for forward test.
530    
531    checkpoint59g
532    o adjoint testing: in preparation for changing testreport:
533      - output format: cost and grad written on separated lines
534      - ad output results in directory "results" (instead of "results_ad")
535    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
536    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
537    o pkg/ecco: allow user defined cost function contributions
538    o testreport:
539      Allow to choose (per experiment) the list of tested output variables
540       and the main variable (used to issue a pass/FAIL ) ;
541      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
542      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
543      Also modify printing of summary:
544       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
545       b) echo the list of tested variables in the individual summary.txt of
546          each experiment.
547    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
548      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
549      (but still depend on the tile decompostion of the domain).
550    o pkg/seaice: change a discretization detail to make the B-grid code
551      "more symmetric". This change is likely to remove all "ridges/leads" that
552      where quasi-aligned with the grid in B-grid solutions. It may also be
553      the solution to the stress coupling issues with the B-grid.
554    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
555      remove .cvsignore from input dir. (since testreport no longer run here).
556    o pkg/thsice:
557     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
558     - fix reshaping of sea-ice just after advection:
559       melt all the ice only if ice-volume is too small.
560     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
561       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
562     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
563    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
564      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
565    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
566      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
567      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
568      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
569      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
570      -> update output.txt
571    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
572     this affects truncation error: -> update output.txt of exp:
573      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
574      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
575    
576    checkpoint59f
577    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
578    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
579      a bounded range (in forward mode)
580    o pkg/ecco, ctrl, autodiff and mom_common:
581     internal parameter controls, completements of implementations
582    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
583    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
584      (not seem any difference in testing results).
585    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
586       at face corners.
587    o pkg/generic_advdiff:
588     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
589      loop range indices for computing vertical advection tendency
590      and do the calculation in the interior only (no overlap) ;
591      for now, only implemented for SOM advection (to save CPU time).
592     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
593    o exch2 adjoint
594      First set of changes:
595      - add exch2 hand-written adjoint templates
596      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
597        This will require cleanup in pkg/autodiff/*.F
598        (changed routines currently kept separate in verif. code/)
599      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
600        that used to hide exch2 or cubed-sphere specific code
601        (commented via 'cph-exch2')
602    o pkg/seaice
603      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
604    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
605       output of global_ocean.cs32x15.thsice .
606    
607    checkpoint59e
608    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
609      for B-grid vector (not yet tested) and C-grid vector (<- only used
610      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
611    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
612      (#ifdef ALLOW_SALT_PLUME)
613    o gather_2d/scatter_2d: removed halo regions
614    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
615      scheme and the corresponding test case (under front_relax dir). For now,
616      only available with Skew-flux form and not yet tested in realistic set-up.
617      adjoint: store directives updated, but gradient checks deteriorated,
618      so maybe GM/Redi adjoint is now broken.
619    o seaice adjoint
620      * add AREA, HEFF, HSNOW as control variable
621        (should not change lab_sea results)
622      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
623    o pkg/seaice:
624      * added computation of saltFlux in seaice_growth;
625        For time being, sea ice salinity is assumed constant
626        contribution of snow flooding to freshening of sea ice is neglected.
627        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
628        defaults to 0.0 in order to maintain backward compatibility.
629        Typical values for SEAICE_salinity are 4 to 10 g/kg.
630      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
631      * added SEAICE_availHeatFrac, which specifies fraction of surface level
632        heat content used to melt or grow ice
633      * commented out cap of HICE: it helps keep ice thinner
634      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
635      * applied OBCS T/S mask to HEFFM sea ice mask
636    
637    checkpoint59d
638    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
639     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
640     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
641    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
642     and change default value of parameter "GM_Small_Number";
643     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
644       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
645       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
646    o pkg/ecco: cost function when applying pkg/smooth to controls
647    o pkg/ctrl: add forcingPrecond run time parameter
648    o pkg/seaice:
649     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
650     - fix bug in metric terms of u-equation in LSR solver (implicit part),
651       changes verification/lab_sea
652     - rearrange implicit part of u-equation in LSR solver to make it easier to
653       read, understand, and debug. This causes changes at the truncation level.
654     - fix (serious) bug in the boundary conditions (sign error in the implicit
655       part) of the LSR solver. Changes all LSR results.
656     - fixed problem with HSNOW initialization to avoid thick snow when AREA
657       is initilized with small values - does not change lab_sea results.
658     - added HsnowFile initialization capability
659    o pkg/smooth: addition to model/src and pkg/ctrl so allow
660     initialization of pkg/smooth and application to control vector
661    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
662    o dependencies: pkg/profiles requires pkg/cal
663    o pkg/profiles:
664     - added option ALLOW_PROFILES_GENERICGRID
665         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
666         that interpolation information (grid points and coefficients) is provided
667         within the netcdf input files.
668         -> sample matlab scripts can be found in MITgcm_contrib/gael
669         that allow you to prepare netcdf input files.
670     - also modified: cleaner include statements, cleaner error print statements,
671       cleaner stops when error, and more tests of the netcdf input files consistency.
672    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
673    o pkg/seaice:
674     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
675       requires a new routine: seaice_diagnostics_fill.F
676     - make sure that seaice does not move if not forced (pressure replacement
677       method, Hibler and Ip, 1995), changes results
678     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
679     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
680       It is turned off by default (=-1.), because it changes the results.
681     - make it possible to read AREA from a file, too.
682    
683    checkpoint59c
684    o add S/R and diagnostics for oceanic mixed-layer depth
685    o move GMRedi call after all vertical mixing schemes (including KPP)
686    o pkg/thsice:
687     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
688      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
689    o pkg/obcs:
690     - bug fix for balance code
691    o pkg/seaice:
692      - allow values of SEAICE_elasticParm > 1
693      - add new parameter SEAICE_evpTauRelax as an alternative
694        to SEAICE_elasticParm
695      - make lsr boundary conditions free slip (by default), changes result
696      - add code for no slip boundary conditions for lsr
697      - set minimum of zeta to zero (and not 4e8) (changes results)
698      - add a cap on AREA after advecting AREA if seaice_growth is not called
699    o change calculation of Visbeck K:
700      - no longer depend on tapering scheme; instead, compute slope (limited
701        by GM_maxSlope). this is equivalent to what was comuted before with
702        clipping or linear tappering.
703      - fix vertical averaging (wrong by 1/2 level)
704      - leave the old version (but will not be maintained) within
705        #ifdef OLD_VISBECK_CALC / #endif
706      - update output of exp. ideal_2D_oce
707    o change error catch in calc_r_star to improve vectorization
708    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
709      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
710    o adjoint:
711      Re-organized adjoint checkpointing according to Matt Mazloff
712      (but with modifs/completions/cleanups)
713      Storing is now bundled into large arrays to optimized I/O
714      (and second step in cleanup of the_main_loop)
715    
716    checkpoint59b
717    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
718      - export/import (between ocean & coupler) fields needed for ocean DIC.
719    o pkg/seaice:
720      - get rid of three more exchanges seaice_calc_viscosities (required
721        different loop boundaries in seaice_lsr and seaice_ocean_stress)
722      - bug fix in seaice_ocean_stress (update of lab_sea required)
723      - reduce loop boundaries to necessary minimum also in seaice_evp
724      - go back to the old way of computing deltaC/Z as the adjoint likes that
725        better
726    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
727      passive tracer to an Age Tracer) + update output.txt
728    o pkg/exf:
729      - implement A-grid / C-grid selection for wind-stress input files.
730      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
731      for now, in exf_bulk_largeyeager04.F only :
732      - change implementation for case where windspeed + 2. components wind-stress
733        are read-in. AND use rhoConstFresh to convert evap.
734    o pkg/seaice:
735      - use correct EXCH_UV for wind-forcing (on A-grid).
736      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
737        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
738    o pkg/exf:
739      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
740      EXF_INTERPOLATION:
741      - merge global_with_exf/code version of exf_interp_read.F
742        to the main code ;
743      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
744        reading the file ; Important: This options needs to be defined to recover
745        previous code.
746        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
747      - no longer loose real*8 precision along the way when using exf_iprec=64.
748    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
749      - change discretisation of evp-solver in order to avoid another exchange
750        (changes lab_sea) and clean up a little
751      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
752        help the adjoint (this also changes the results slightly)
753      - add a few "_d 0" where they had been missing in seaice_evp.F
754      - cleaning up: remove unused seaice_calc_rhs.F
755    o pkg/exf: some cleaning-up:
756      - change various "constants" into runtime parameters
757      - cleaned-up Large&Yeager04 routine which should eventually
758        replace exf_bulkformulae.F (changed names of S/R and CPP)
759        and merged various ALLOW_ATM_WIND options
760     only used with thsice pkg (in thsice_get_exf.F):
761      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
762        which are used when useStabilityFct_overIce=TRUE (= the default)
763      - change default values of ice & snow emissivity and scale downward LW
764        by ice & snow emissivity.
765    o pkg/thsice:
766     fix few little problems, in thsice_calc_thickn.F:
767      - growth vertically (and not laterally) if iceFrac == iceMaskMax
768      - melt only laterally if hIce < hThinIce (as the comments say)
769      and in thsice_extend.F:
770      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
771      - start to form ice as soon as the minimum ice-volume is reachable.
772     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
773      and cpl_aim+ocn
774    o pkg/kpp
775     - move computation of surface related input fields to KPP into a new
776       subroutine kpp_forcing_surf.F
777     - remove wrong (within bi,bj loops) EXCH calls.
778     - little cleaning (add argument myThid in last position, cvs header ...)
779     - for now, fix conservation problem by exchanging KPPviscAz (may not
780       be the best fix)
781    o pkg/seaice
782     - check for inconsistent evp parameter/cpp-flag combination
783     - remove leftover errIO flat for obsolete name list error handling
784    o OpenAD
785     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
786    
787    checkpoint59a
788    o pkg/seaice: some parameter clarifications and a little bit of clean up
789    o pkg/thsice: rename run-time parameters:
790       himin       -> hIceMin
791       himin0      -> hThinIce
792       hihig       -> hThickIce
793       i0          -> i0swFrac
794       transCoef   -> bMeltCoef
795       frac_energy -> fracMelting
796      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
797       with default values (for now) that do not change the results.
798      remove old version of thsice vars advection in pkg/seaice.
799    o in FFIELDS.h:
800      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
801      - make pLoad & sIceLoad always available (but still only used if
802         ATMOSPHERIC_LOADING is #define).
803    o pkg/kpp: replaced _KPP_RL with _RL
804    o bug fixes for vertical diffusivity computations when both KPP and
805        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
806        are no longer updating the vertical diffusivity array
807        (passed as argument) but are (re-) setting those arrays.
808    o pkg/seaice: fix bug in evp solver, while doing that
809      - change (improve?) discretization of stress computations for both
810        cgrid-lsr and evp solver
811      - add a new routine to compute strain rates
812      - the above changes lab_sea results
813      - add no slip conditions for evp solver (off by default), lsr-version
814        may follow
815      - fix exchange for shear at Z-points (does not change lab_sea)
816      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
817        (to force the user to pick a time step since there is not "safe" way
818        of choosing it)
819      - add principal stress diagnostics
820      - rearrange fields for evp a little to avoid having to call a: too many
821        exchanges and b: exchanges for stress trensor components which we do
822        not have.
823      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
824        of evp, complete rewrite for lsr case (latter is does not yet work
825        in all cases)
826    o pkg/kpp: add code to have mixing in shelf ice caverns
827      - add myThid to all kpp routines (long overdue)
828    
829    checkpoint59
830    o pkg/exf:
831      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
832        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
833      - move exf header files from lower_case.h to UPPER_CASE.h ;
834        add missing cvs Header & Name
835      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
836      - add namelist param. selectStressGridPosition, exf_monFreq
837      - retire many _CLIM routines, and remove data.exf_clim
838        + params moved to data.exf
839        + climsst, climsss now handled by exf_set_gen, i.e.
840          climss?period=0 refers to constant field,
841          climss?period=-12 to monthly forcing
842      - split up namelists in data.exf
843    o pkg/seaice:
844      - remove seaice_exch and seaice_exch_uv
845      - remove superfluous exchange of theta
846      - add myThid to seaice_budget_ocean/ice
847      - add new interface for atmospheric wind forcing (C-grid only)
848        + new routine
849        + two new field (taux, tauy for stress over ice)
850        + removed one global field (DAIRN) for C-grid case only
851    o pkg/thsise
852      - 2nd set of modifs for thsice adjoint in conjunction with exf
853    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
854    
855    checkpoint58y_post
856    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
857      vertical diffusivity, similar to that in MOM4; turned on using
858      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
859      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
860    o Added capability for 3D specification of background vertical diffusion
861      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
862      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
863      "data" file that contains the 3D vertical diffusivity coefficients.
864    o ice dynamics (pkg/seaice) with thsice thermodynamics:
865      - add code within pkg thsice to advect & diffuse sea-ice fields
866      similar to (and will replace) what has been added in  seaice_advdiff.F,
867      but: - conserving Mass, Heat & Salt.
868           - better when using non-linear advection scheme (not yet fully tested)
869           - can also be used in atmospheric set-up (for now, only the diffusion).
870    
871    checkpoint58x_post
872    o IO option for global-file compact format:
873      - add options when generating topology (utils/exch2/matlab-topology-generator)
874      - add I/O capability (pkg/mdsio).
875      - adapt utils/matlab/rdmds.m to read this format.
876      for now long-line format not yet supported by pkg/mdsio (& exch2).
877    o shelfice: add a few diagnostics
878    
879    checkpoint58w_post
880    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
881      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
882      (and replace horiVertRatio in NH code).
883      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
884                         and tutorial_plume_on_slope (sensitive to truncation)
885    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
886      directly to drive seaice model (C-grid only)
887    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
888     - reintroduce computation of wind from stress,
889     - compute tau (in exf_bulkformulae.F) from windstress averaged to
890       mass points to avoid tau = 0
891     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
892    o rdmnc.m: make it work with "global" files created with gluemnc
893    o rdmnc.m : some improvements in dealing with singleton dimension
894      (tested on all testreport mnc output files).
895    o genmake2: disable pkg/profiles if netcdf test fails.
896    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
897    o move call to cal_readparms up to make calendar parameters/variable available
898      to all packages
899    
900    checkpoint58v_post
901    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
902      useDynP_inEos_Zc tested.
903    o pkg/exf: changes to properly interpolate/mask/scale initial fields
904    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
905      and portions thereof.  See read_cs.txt for description and examples.
906    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
907      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
908      following the great-circle arc between those 2 points.
909    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
910      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
911    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
912     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
913     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
914     - still needs work (not working with some options ; efficiency to improve)
915       and serious testing.
916     - use this scheme for temperature & salinity in 2 advection test exp.:
917       advect_xy & advect_xz, respectively.
918    
919    checkpoint58u_post
920    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
921    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
922    o testreport: add option "-skipdir" to skip some test.
923    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
924      momentum calculation.
925    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
926    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
927      remove checkpoint.F and the_correction_step.F (no longer used);
928      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
929    o add option (linFSConserveTr) to correct for tracer source/sink due to
930      Linear Free surface
931    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
932    o pkg/thsice: fix reading mnc-pickups
933    
934    checkpoint58t_post
935    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
936    o pkg/mdsio:
937     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
938       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
939       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
940     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
941     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
942       either MDS_READ_FIELD or MDS_WRITE_FIELD )
943     - new S/R (to replace MDSWRITEMETA), which allows to write more
944       informations (variable names, time ...) to meta files.
945     - modify rdmds.m to give back the meta file content.
946    o pkg/diagnostics: change vertical interpolation to be safer, and more
947       flexible (define p-levels to interpolate to in data.diagnostics);
948      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
949       diagnostic pointer.
950    o pkg/seaice: more cleaning up of seaice_growth, added many comments
951    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
952    o fix multi-category seaice:
953     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
954       SEAICE_MULTICATEGORY
955     - fix short wave heat flux
956    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
957       and allow to use EVP solver. Change forward lab_sea: test both EVP
958       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
959    o Initial check-in of lab_sea adjoint
960      (very similar to natl_box_adjoint/code_seaice)
961      * used C-grid and EVP solver
962      * used KPP, GM/Redi
963      * uses inAdExact=.TRUE.
964      * gradient checks fail for both ADM and TLM
965        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
966        f.d. gradients actually seem more problematic than ADM, TLM gradients;
967        issue is related to forward mismatch between g77 an ifort
968    o pkg/seaice: overhaul of thermodynamics
969     - growth.F and groatb.F are replaced by new routine seaice_growth.F
970     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
971     - move a few global fields out of SEAICE.h into seaice_growth.F and
972       make them 2D (FICE/QNETO/ ...)
973     - remove FO (it is the same as QNETO)
974     - introduce a few local fields to avoid modifying external fields such
975       as atemp, etc.
976    
977    checkpoint58s_post
978    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
979      changed exf_set_gen.F so that
980        genperiod=0 means input file is one time-constant field and
981        genperiod=-12 means input file contains 12 monthly means
982    o CG2D: use pre-computed solver main-diagonal (stored in common block);
983      this affects truncation error ; generate new output file for exp. which
984      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
985        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
986        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
987        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
988        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
989        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
990    o start implementation of deep-atmosphere and anelastic formulation
991    o verification: remove 2nd copy of input files and use script "prepare_run"
992      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
993    o mom_common/vecinv/fluxform: fix a few initialisation isssues
994    o profiles: fix for multithreaded case
995    
996    o diagnostics: rename few diags:
997      s/'PRESSURE'/'RCENTER '/g
998      s/'TICE    '/'oceFreez'/g
999      s/'TAUX    '/'oceTAUX '/g
1000      s/'TAUY    '/'oceTAUY '/g
1001      s/'SWFLUX  '/'oceQsw  '/g
1002      s/DIFx/DFxE/g
1003      s/DIFy/DFyE/g
1004      and add few ocean-forcing diagnostics:
1005      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1006    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1007      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1008      as actual snow thickness.  It now refers everywhere to effective snow
1009      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1010    
1011    checkpoint58r_post
1012    o modifications to pkg/seaice/growth.F, which change results of
1013      lab_sea experiment: fixes pertain to melting snow over open water, to
1014      masking EVAP under sea ice, and to using the correct AREA variable for
1015      computations of EVAP, PRECIP, HSNOW, and GHEFF
1016    o add ability to read bathy, salt, and theta using MNC (off by def)
1017    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1018      both are turned off by default and do no change any results
1019    o seaice advection with pkg/thsice: a step toward the use of non-linear
1020      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1021    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1022      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1023      in natl_box (affects results @ truncation level: update output.txt)
1024    o multi-threading and IO:
1025      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1026      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1027        (needed to work with SingleCpuIO): tested in all verif. exp.
1028    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1029      affects the results (but none of the verification test uses this scheme).
1030    o Adding some pkg/diagnostics capability to pkg/seaice
1031      (will certainly be subject to changes)
1032    o ctrl: adding new control variables:
1033      lwflux, lwdown, evap, snowprecip, apressure, runoff
1034    
1035    checkpoint58q_post
1036    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1037      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1038      high_res_cube configuration by 4% on Columbia.
1039    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1040      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1041      dynamical allocation (seems to work in multi-threaded).
1042    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1043      single CPU io) so that TAF does not have to see EESUPPORT.h
1044    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1045    
1046    checkpoint58p_post
1047    o obcs: stop if obcs is used with useCDscheme = .true.
1048    o shelfice:
1049     - fix a sign error so that no slip at shelfice interface works
1050     - remove stop for combination non-hydrostatic code and shelfice. That does
1051       not mean, that the results are correct, but at least they are numerically
1052       stable
1053    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1054    o added adjoint exch routined for all exch*3d* routines
1055      and updated flow directives
1056    
1057    checkpoint58o_post
1058    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1059      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1060    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1061      and clean-up reading/writing of pickup files.
1062    o fix local version of read/write pickup (NH part) in rotating_tank/code
1063    o simplify EXCH interface:
1064     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1065     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1066    o added the regrid package
1067    o shelfice:
1068     - add a simple boundary layer scheme to reduce noise
1069     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1070    
1071    checkpoint58n_post
1072    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1073       local variable (not in common block).
1074    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1075      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1076      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1077        to work with SingleCpuIO.
1078    o add "_d 0" to real constant of pkg/cfc subroutines ;
1079       update exp. cfc_exemple & tutorial_cfc_offline output files.
1080    o multi-threading and IO:
1081      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1082        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1083      - barrier before and after reading.
1084      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1085      - avoid using MDS_WRITELOCAL for LAND pkg output.
1086      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1087        common-block variables ; Allows multi-threading with master-thread IO.
1088    o change default MAX_NO_THREADS from 32 to 4 ;
1089      and stop cleanly when MAX_NO_THREADS is too small.
1090    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1091    
1092    checkpoint58m_post
1093    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1094       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1095    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1096       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1097       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1098    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1099        add MITgcm_tutorials (= code + all the tutorials)
1100    o ecco, option to compute cost for total ssh (mean+anom)
1101    o consistent with addition of ptracer and ssh in pkg/profiles
1102    o profiles: adding ptracer and ssh
1103    o testreport: change multi-test output-file name
1104      (from output.txt.{name} to output.{name}.txt)
1105    o profiles: now ok for mutli-tiles case
1106    o seaice: add 4 parameters for different advection schemes for area,
1107      (effective) seaice thickness, enthalphy, and snow height. Their default
1108      is the standard parameter SEAICEadvScheme
1109    o calc_gw:
1110     - add cosFacU in zonal viscous flux (harmonic.visc.).
1111     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1112       of tutorial_plume_on_slope.
1113    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1114    o calc_gw: true flux-form, account for horizontal grid spacing.
1115      update rotating_tank results, but not plume_on_slope (affected at
1116      truncation level, 11 digits).
1117    
1118    checkpoint58l_post
1119    o calc_gw:
1120     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1121     - remove side-drag for now (need to fix it); update plume_on_slope results.
1122     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1123    o commit code to make SST/SSS weights spatially variable
1124      (based on either variable in-situ or variable initial T/S weights)
1125    o pkg/ecco:
1126      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1127        now based on horizontally varying weights wthetaLev, wsaltLev
1128      * cost_averagesflags now returns year indices in addition to day, month
1129      * sflux balance is performed on annual basis
1130        (sflxumm, sfluxmm2, bal_sfluxmm)
1131      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1132        including separate counting and multipliers
1133    o pkg/rbcs
1134      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1135    
1136    checkpoint58k_post
1137    o testreport:
1138     - always build in dir. "build" (if not there, mkdir build instead of building
1139       & running in input)
1140     - run in dir run (if it exists), in build otherwise.
1141     - call prepare_run (if input/prepare_run exists)
1142     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1143    o pkg/exf modifications to interpolation and rotation routines for more
1144       reasonable treatment of North Pole singularity: for tracers North Pole
1145       value is set to northernmost zonal-mean value, for zonal velocity it is
1146       set to zero, and for meridional velocity it is set to northernmost value.
1147    o pkg/exf/exf_check_range.F
1148     - add tile index to diagnostics and move stop statement to the very
1149       end of the routine.
1150    o pkg/diagnostics: (diagnostics_main_init.F)
1151      define title of isomorphic variables according to the current config.
1152    o pkg/thsice with pkg/seaice dynamics:
1153    - fix domain of computation (interior only, required for exf) and do exchanges
1154    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1155    o towards a standard way of dealing with multi-threading in MONITOR
1156      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1157    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1158       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1159    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1160    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1161    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1162       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1163    o tracer advection:
1164     - clean-up and simplify calc_common_factors.F
1165     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1166       advection subroutine (but still not used within DST advection S/R)
1167    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1168    
1169    checkpoint58j_post
1170    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1171      from file (collects calls previously in FORWARD_STEP)
1172    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1173    o adjoint store dir. adjusted accordingly
1174    o genmake2
1175      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1176    
1177    checkpoint58i_post
1178    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1179      on wind stress (SEAICEstressFactor defaults to 1.)
1180    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1181      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1182    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1183      on CS-grid: no longer loosing mass.
1184    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1185    o pkg/ggl90: fix sloppy output and fix a bug
1186    o pkg/seaice: added SEAICEuseEVPpickup parameter
1187      - Set to false in order to start EVP solver with
1188        non-EVP pickup files when using SEAICEuseEVP
1189      - fix sign error in diffusion in seaice_calc_rhs
1190    
1191    checkpoint58h_post
1192    * Modifications for bottom topography control
1193      o replace hFacC by _hFacC at various places
1194      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1195      o add non-self-adjoint cg2d_nsa
1196      o update autodiff support routines
1197      o re-initialise hfac after ctrl_depth_ini
1198      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1199    * Adding verification for 5x5 box (4-layer) bottom topography control
1200    
1201    checkpoint58g_post
1202    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1203       used for mean seasonal cycle, mean diurnal cycle); add an example
1204       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1205    o pkg/ggl90:
1206      - add parameter (minimum surface kinetic energy)
1207      - fix bug (avoiding division by zero)
1208    o couple pkg/thsice to pkg/seaice:
1209      - modify advection in seaice to accomodate new scalar fields to be advected
1210      - only muliDimAdection scheme work with seaice/thsice
1211      - mapping of thsice-variables to seaice-variables, back and forth
1212      - does not break the verification experiments, but does not give the
1213        desired results either
1214    o pkg/seaice
1215      - make (default) second order advection a bit less confusing?
1216    
1217    checkpoint58f_post
1218    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1219      to pkg/seaice):
1220      - new routines thsice_map_exf and thsice_get_exf provide the interface
1221      - add an additional formal parameter to thsice_solve4temp
1222    o pkg/exf:
1223      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1224      - correct Stefan-Boltzmann constant
1225      - new parameter for longwave surface emittance
1226      - separate some stuff from exf_bulkformulae into new routines  
1227        exf_radiation, exf_wind
1228      - add new parameters and constants: longwave emissivity for ocean, ice
1229        and snow, evaporation parameters over ice
1230      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1231        either wind from stress or stress from wind
1232    o pkg/thSIce:
1233    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1234    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1235       and THSICE_CALC_THICKN
1236    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1237    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1238      to make debugging easier.
1239    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1240    o pkg/bulk_force:
1241      - clean-up comments and parameters ;
1242      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1243    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1244      generate new output for test-experiment: aim.5l_cs.thSI
1245    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1246      testreport accordingly
1247    
1248    checkpoint58e_post
1249    o SEAICE_CGRID adjoint done
1250    o R_STAR adjoint implemented.
1251      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1252      * need to sort out init. of h0facc, etc.
1253    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1254      to be able to use it in pure forward.
1255    
1256    checkpoint58d_post
1257    o upgrade simple test-experiment to tutorial example:
1258     step.1: duplicate the experiment and (step.2) will remove the old copy.
1259      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1260      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1261      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1262      tutorial_global_oce_biogeo    <- copy of dic_example
1263      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1264      tutorial_plume_on_slope       <- copy of plume_on_slope
1265      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1266      tutorial_global_oce_optim     <- empty for now (David ?)
1267      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1268     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1269    o correct a sign problem in cost_scat.F
1270    o obcs and ptracers: fix boundary conditions for advections schemes
1271      with larger stencil
1272    o thsice adjoint: start
1273    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1274      completeness
1275    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1276      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1277    o ptracers adjoint:
1278      * avoid extensive recomputatations
1279      * fix missing re-init. of gptr (missed by TAF)
1280    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1281      me to turn off the excessive output to STDOUT that this package produces
1282    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1283      and add those terms in Vector-Invariant formulation.
1284    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1285      if the control period (xx_hfluxperiod etc) is 0
1286    o in profiles pkg, clean routines and fix details
1287    o in ecco pkg, reading ssh data:
1288      fix problem in case the model does not start at iter0=0
1289    o fix mnc-pickup/restart for ptracers
1290    o new package prifiles:
1291      code to compute profile-based cost by Gael Forget
1292      (modifs in ecco, ctrl, autodiff)
1293    o Benign bug fix in initialization (spotted by M. Mazloff) of
1294      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1295    
1296    checkpoint58c_post
1297    o adjoint: finish NLFS adjoint and provide reference output in
1298      verification/global_ocean.90x40x15/results_ad_nlfs
1299    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1300      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1301      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1302      with SEAICE_CGRID defined.
1303    o move calendarDumps from "data" to "data.cal" and clean-up the code
1304      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1305    o add useEXF & useCAL flags (for now, set in hard-coded way)
1306    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1307      (were missing in NH mode, and wrong in quasihydrostatic mode).
1308      waiting for Chris updated version of calc_gw to add those CALLs.
1309    o fix bug in quasihydrostatic S/R ;
1310      add a test for this option: global_ocean.90x40x15.qshyd
1311    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1312      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1313    o add on/off flag useOffLine for package OFFLINE
1314    o seaice:
1315      - modify advection so that it works also on the C-grid
1316      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1317        problem in multi-tile runs with C-grid
1318      - add flags for clipping ice velocities and/or masking solver forcing
1319      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1320        C-grid solver
1321      - added a few comments to seaice_diffusion.F
1322      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1323        are now exclusive)
1324      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1325        required re-ordering the code a little:
1326       + make DAIRN global variable (defined in SEAICE)
1327       + move computation of the viscosities eta and zeta into a new separate
1328         routine (because I need to recompute them in seaice_ocean_stress.F)
1329    
1330    checkpoint58b_post
1331    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1332      update output.txt of exp. aim.5l_cs.thSI
1333    o various mnc cleanups and improvements:
1334      + shrink lookup tables by factor of ~4
1335      + better error reporting when running out of lookup space
1336      + able to handle longer path/file names (up to 500 chars)
1337    o adjoint:
1338      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1339      - TBD: "hidden" mom_vecinv recomp. in dynamics
1340    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1341     (allow to differentiate between forcing components using new integer flags:
1342      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1343     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1344    o ecco
1345      - enable trend removal from SSH anomaly obs.
1346    o adjoint
1347      - a fix for PmEpR when #undef EXACT_CONSERV
1348      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1349      - try to fix "hidden" recomp. in forward_step for NLFS
1350        (NLFS seems broken sometimes after I checked it in)
1351    o seaice:
1352     - add c-grid version of the dynamic solver:
1353       + three new routines that are the c-grid substitute lsr, dynsolver
1354         and ostres
1355       + put a few fields that were local to dynsolver into global common
1356         blocks, so that I can move the computation of stresses etc into
1357         seaice_lsr (saves coding but may break the adjoint).
1358     - replace more hardwired parameters by runtime parameters
1359     - add ice masks that mask the rhs of the implicit solvers where there
1360       is no ice (commented out in seaice_dynsolver, because i am not sure
1361       if this works properly), eventually this should replace the clipping
1362       of ice velocities in seaice_dynsolver to +/-40cm/s.
1363    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1364      include it only where its needed
1365    o move balancing of fluxes before the call of external_forcing_surf
1366    o seaice:
1367      - correct units of turning angles (now they are really in degrees)
1368      - move computation of GWATX/Y out of main routine into dynsolver
1369      - initialize GWATX/Y in seaice_init
1370    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1371      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1372    o seaice: add runtime flags for turning angles (default to zero)
1373    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1374      and trend from exf forcing and ctrl control adjustments
1375    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1376      (since checkpoint57x_post)
1377    o change the default rotation period to 86164.s = the Earth rotation
1378    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1379      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1380    o seaice advection: add code for choosing between the default (2nd order
1381      central differences) and multiDim advection schemes provided by
1382      pkg/generic_advdiff
1383    o seaice:
1384      - removed all references to SEAICE_GRID.h fields from
1385        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1386        (cubed-sphere configuration will change a little)
1387      - grid computations in seaice_init are obsolete now.
1388      - cleaned up code a little so that is easier to read (hopefully).
1389      - added new (better?) discretizations of default advection and diffusion
1390        (turn on with SEAICEuseFluxForm)
1391      - replace 1 in 3d global fields by kSurface in growth.F
1392      
1393    checkpoint58a_post
1394    o seaice:
1395      - bug fix in advect.F
1396    o shelfice:
1397      - separate shelfice load anomaly from pload (breaks with time
1398        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1399        Its default is 0., but it may be computed more cleverly from (unknown)
1400        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1401        done offline. A good approximation of the pressure load anomaly is
1402        necessary to avoid large initial adjustment processes underneath
1403        deep-reaching shelfice.
1404      - small fix in ISOMIP shelfice_thermodynamics
1405      - add more sophisticated thermodynamics of Hellmer (1989), this is
1406        now the default
1407      - give a few constants more intuitive names
1408    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1409      if bulk formulae are used in long integration (especially EmPmR). Turn
1410      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1411      if balancePrintMean, the imbalance that is substracted is printed to
1412      STDOUT.
1413    o fix bug (typo) in obcs_apply_eta.F
1414    o add a new package shelfice which enables us to model the circulation
1415      underneath shelf-ice with draughts of hundreds of meters.
1416     - works
1417     - to do: + include improved thermodynamics
1418              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1419                instead of new field kTopC
1420              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1421                instead of new field R_shelfIce and new code in ini_depth.F
1422                and ini_mask_etc.F?
1423              + adjust vertical mixing schemes?
1424    o seaice pkg:
1425     - add a cpp-flag to include a simple formula for a salinity dependent
1426       freezing point of sea water at the surface
1427     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1428       meridional stresses are now different (and hopefully correct)
1429    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1430       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1431       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1432    o pkg/diagnostics: add options and parameters for regional-statistics
1433       diagnostics ; define regions by reading a region-mask from a file
1434       (might add other options later)
1435    o pkg/bulk_force:
1436     - add option and parameters to use AIM surface-flux formulae.
1437     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1438       others forcing fields (defined in PARM05, parameter file "data") are loaded
1439       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1440     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1441     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1442     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1443       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1444     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1445    
1446    checkpoint58
1447    o add "--embed-source" option to genmake2 which, when the supporting
1448      tools can be compiled (as determined by genmake2) will turn on the
1449      embed_files package which then embeds the entire MITgcm source code
1450      (*.[fFhc] + Makefile) used for the build within the executable
1451      - requested by CNH but off by default
1452      - adds a paltry <9MB to the mitgcmuv executable in most cases
1453      - only writes the output when useEMBEDSRC in eedata is true
1454    o clean up 3-dim. relaxation codes:
1455      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1456      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1457      * Thanks to Tom Haine for testing!
1458    
1459    checkpoint57z_post
1460    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1461      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1462    o fix the pickup behavior for obcs in combination with ptracers
1463    o fix a bug in ptracers_external_fields_load
1464    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1465      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1466    o transfered surface NH pressure to eta field (if exactConserv).
1467    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1468         and update lab_sea output.txt file.
1469    o completing 3-dim. relaxation code: additional term
1470         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1471      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1472      * At compile time, in "EXF_OPTIONS.h" set
1473          #define  ALLOW_CLIMTEMP_RELAXATION
1474          #define  ALLOW_CLIMSALT_RELAXATION
1475      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1476          tauThetaClimRelax3Dim = 15552000.0,
1477          tauSaltClimRelax3Dim  = 15552000.0,
1478      * 3 cases:
1479          1) Use a constant-in-time 3-dim. field
1480          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1481          3) Real-time relax. to time-evolving prescribed field
1482    o Adding Laplacian-type smoothness constraint on
1483      initial and boundary (forcing) controls (ic, bc)
1484      * enable at compile-time via
1485        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1486      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1487      * Absolute scale somewhat unclear so far
1488      * no area weighting was included since no other cost term does so far
1489    
1490    checkpoint57y_post
1491    First step for a NLFS adjoint
1492    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1493    o new init. routines for calc_r_star, calc_surf_dr
1494    o still need to deal with ini_masks_etc
1495    o testreport seemed happy
1496    checkpoint57y_pre
1497    
1498    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1499    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1500    o add new offset feature to offline pkg (plus minor cleanup)
1501    o cfc fixes for final year of integration
1502    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1503      be in GCHEM_OPTIONS).
1504    
1505    checkpoint57x_post
1506    o fix testreport Pb in multiple test experiment.
1507    o cleanup our namelist syntax in verification:
1508      - make it more F95 standards compliant (some work still needed)
1509      - allows the vast majority of our tests to work with gfortran
1510    o Non-Hydrostatic:
1511     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1512     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1513    o Allow to apply AB on T,S rather than on AB(gT,gS):
1514     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1515     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1516       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1517     - need a "clever" read_pickup to restart from the other AB formulation
1518    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1519    o remove some unused variables (reduces number of compiler warnings)
1520    o adjoint
1521      * Disable useVariableViscosity for adjoint for time being
1522        (there are a number of extensive recomputations)
1523      * Initialize certain variables needed for adjoint
1524    
1525    checkpoint57w_post
1526    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1527                 fix the singleCpuIO RS version of MDSWRITEFIELD
1528       and add a WARNING if using globalFiles=T with multi-processors.
1529    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1530      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1531    o tracer advection scheme:
1532      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1533       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1534       was not very convenient).
1535      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1536       (further tests needed for the implicit DST & Flux-Limiter schemes).
1537    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1538      and sRef for convenience, handy, when you want to initialize
1539      ptracers in a large domain with a constant non-zero value. Also,
1540      untangle ptracers_init.F a little.
1541    
1542    checkpoint57v_post
1543    o change dome exp. to use variable viscosity in side-drag terms.
1544    o remove all the files from the cfc_offline test since they are now
1545      incorporated into tutorial_cfc_offline which has been producing
1546      identical results for a few days of testing
1547    o add new parameter: sideDragFactor to enable half-slip-side BC
1548      and change side-drag S/R to use viscosity from mom_calc_visc
1549      (can switch back by setting sideDragFactor=0.); affects results at
1550      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1551       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1552    o vorticity & strain are now computed without masking, to account for
1553      no-slip-side BC in variable viscosity calculation ; mask is applied
1554      anyway later on, before computing advection/coriolis terms.
1555    o modify exp4 to test new obcs support for reading from external files
1556      and for passive tracers
1557    o fix behavior of ptracers_monitor when monitor output is written to a
1558      netcdf-file; still not independent of monitor.F (writes in the same
1559      file).
1560    o change default value of tRef (put a uniform, meaningful value for ocean
1561      & atmos) and initialize sRef (was missing, as Martin mentioned).
1562    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1563      to be proportional to enstrophy dissipation length.  Thus,
1564       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1565      This is now consistent with Smagorinsky and with the manual.
1566    
1567    checkpoint57u_post
1568    o OBCS and PTRACERS: add open boundary support for passive tracers
1569      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1570        OB-values from file; this is not different from the way theta and salinity
1571        are treated
1572      - however, Orlanski-radiation conditions are not supported, and the model
1573        will stop if you use pTracers and Orlanski at the same time.
1574      - beefed up the rountine obcs_external_fields_load: now only those open
1575        boundary values are overwritten with values from files for which there
1576        are really files, otherwise the OB-fields remain untouched. This makes
1577        it possible to use different OBs at different ends of the domain (as
1578        with EXF)
1579    o reduce number of exch calls in shap_filt (s2).
1580    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1581      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1582    
1583    checkpoint57t_post
1584    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1585    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1586      same truncation, independent of the face number: affects affects several
1587      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1588    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1589      note that biharmonic viscosity + no-slip was not tested in any experiment.
1590    o fix bug in non-linear free-surf side-drag ; generate new output for
1591      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1592    o make mnc honor the writeBinaryPrec flag for most kinds of output
1593    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1594    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1595      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1596    o add brackets in multi-terms sum to get same truncation, independent of
1597      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1598      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1599    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1600      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1601      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1602      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1603      Suggested values of viscosity parameters found in mom_calc_visc.
1604      Many new viscosity diagnostics available.
1605    
1606    checkpoint57s_post
1607    o Add clearing-house for viscosity calculations, mom_calc_visc and
1608      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1609      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1610      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1611      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1612      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1613      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1614      ViscAhStrain and viscAhTension are now retired.
1615    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1616    o In response to JMC's bug report, genmake2 now ignores any soft-links
1617      that it finds in the *current* directory when searching for files.
1618      Soft-links found in any other source directories will still work as
1619      they did before.
1620    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1621      a C routine to unlimit the stack size
1622    o mnc-ify pkg/aim snapshot vars
1623    o mnc-ify pkg/land as requested by Daniel
1624    o various changes to mnc including:
1625      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1626      - output can now be grouped so that all files within a group
1627          change the ITER portion of their names in lock-step together
1628      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1629          and works with both EXCH1 and EXCH2 (but needs more testing)
1630      - writing works for all verification test cases w/ g77 on Linux
1631    
1632    checkpoint57r_post
1633    o make MNC variable initialization happen earlier
1634    o add diagnostics for (almost) each term of the momentum Eq.
1635    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1636    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1637    o remove MINIMAL_TAVE_OUTPUT option ;
1638      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1639    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1640      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1641    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1642    o add time-dependent SST, SSS control
1643    o cost terms in ecco/ modularized (new cost_generic.F)
1644    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1645    o new infrastructure for seaice model vs. obs misfits in seaice/
1646      * driver from the_main_loop.F is seaice_cost_driver.F
1647      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1648      * gradient check in Exp. 6a of natl_box_adjoint/
1649    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1650      (see README file)
1651    
1652    checkpoint57q_post
1653    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1654    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1655      - bug was reported by Jean-Michel and Ian Fenty
1656    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1657      update exp. cpl_aim+ocn output.
1658    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1659      Needed for high-res. runs with large global files
1660      to be able to limit tapelev size
1661    o Changed some tests for adjoint:
1662      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1663      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1664      * global_ocean.90x40x15/ back to default 3-level checkpointing
1665    o Modifications to enable scripted COMMON to MODULE conversion
1666      * verification/OpenAD/code/ has necessary scripts and description;
1667      * converts, compiles and runs successfully;
1668    
1669    checkpoint57p_post
1670    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1671    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1672      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1673    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1674    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1675      (was already the case for dissipation with mom_vecinv,
1676       and also the case for grad.PhiHyd when staggered-timeStep)
1677      This will allow to put dissipation out-off the AB time-stepping.
1678     Unfortunately, affects truncation error. Update output of exp. that "fails"
1679      (cg2d matching number) and leave the others for later: front_relax(10),
1680      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1681      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1682    
1683    checkpoint57o_post
1684    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1685      (2) its ready to be documented during the 20050801 DocFest
1686    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1687      for ideal_2D_oce and lab_sea on linux_ia32_g77
1688    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1689      in global1x1_tot/code_seaice_adj to access indices 32, 33
1690      (worth another tag)
1691    
1692    checkpoint57n_post
1693    o adding precip control xx_precip 32
1694    o adding swflux control xx_swflux 33
1695    o Replacing 10 forcing penalty cost routines by 1 generic.
1696    o Implementing partitioning in time-mean and variable adjustment
1697      for atmos. state.
1698    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1699    o in natl_box_adjoint:
1700      * updated exp 1 to 10
1701        (but does not have time-mean vs. variable split results yet)
1702    o updated global1x1/*_seaice_adj/
1703      to incorporate latest changes
1704    o enable useSingleCpuIO for mdsio vector routines
1705      (applies in particular to tapelev I/O)
1706    o removed inefficient K-loop in all active_file*control*.F
1707    
1708    checkpoint57m_post
1709    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1710      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1711    o pkg/exch2: filling of face-corner halo regions is optional
1712      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1713    
1714    checkpoint57l_post
1715     tag before updating tutorials (pre-release-2)
1716    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1717       for output and interpolation of input fields onto model grid)
1718    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1719       Affects results of exp. rotating_tank ; update output.txt.
1720    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1721          and taking the square quantity and/or using a fraction-weight field.
1722    o fix aim_diagnostics_init.F mate numbers.
1723    o add mnc output capability to diagnostics/diagstat and update
1724      our cvsignore files for the ACSII output generated
1725    
1726    checkpoint57k_post
1727    o lab_sea now uses diagnostics package and provides a suite of
1728      new EXF diagnostics output.
1729    
1730    checkpoint57j_post
1731    o exf
1732      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1733        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1734        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1735      * extended diagnostics output
1736        - now includes all EXF variables
1737        - hs, hl moved to common block
1738        - separate S/R for diagnostics, called after ctrl vector is added
1739        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1740        - EXFqnet contains true Qnet (i.e. includes qsw)
1741      * updated verif. lab_sea, global_with_exf
1742      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1743        to ensure that diagnostics sees a true EXFqnet
1744    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1745    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1746      several times with different frequencies.
1747    o mnc-ify the thsice package as requested by Daniel Enderton
1748      - the monitor--MNC output needs work
1749      - many attributes need to be added (most are currently blank)
1750    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1751      - many attributes need to be added (most are currently blank)
1752    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1753    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1754    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1755      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1756         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1757    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1758     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1759    
1760    checkpoint57i_post
1761    o Diagnostics package was changed: diagnostic allocation is now deactivated
1762      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1763    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1764      add 1rst Order upwind vertical Shear.
1765    o add a quick fix for A/B checkpointing in OFFLINE mode
1766    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1767      end-run around the C/Fortran linking horror in eesup/src/timers.F
1768    o added pkg/runclock: allows user to terminate run based on wall clock
1769    o added non-hydrostatic scaling parameter: nh_am2
1770    o pkg/my82: futile attempt to make results compiler-independent by adding
1771      some "_d 0", etc. no effect.
1772    o for mnc output, fill the 'T' coordinate var with myTime and create a
1773      separate 'iter' variable for iteration count
1774    o pkg/diagnostics:
1775      add new capability: output of Global/Regional & per-level statistics ;
1776      tested against monitor output (including land & thSIce) on various exp.
1777    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1778    
1779    checkpoint57h_done
1780      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1781      data.diagnostics, data.gchem, data.ptracers) is done.
1782    
1783    o pkg/diagnostics: prepare for Global/Regional statistics.
1784      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1785    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1786      and rename it: DIFFERENT_MULTIPLE
1787    
1788    checkpoint57h_post
1789    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1790    o pkg/diagnostics: change output frequency, now in seconds (instead
1791      of Nb of iterations). This requires to change data.diagnostics.
1792    checkpoint57h_pre
1793    
1794    o in mnc, let the user create the output dir if both mnc_outdir_date
1795      and mnc_outdir_num are false
1796    o add fflags() to pkg/diagnostics which allows one to specify, on a
1797      per-file basis, the file precision [default behavior is unchanged]
1798    o added diagnostics to pkg/kpp, including computation of mixed layer
1799      depth based on a temperature/density criterion
1800    o updated verification/natl_box to test the new pkg/kpp diagnostics
1801    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1802    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1803    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1804      not mnc -- this mistake was found by JMC and is now corrected
1805    
1806    checkpoint57g_post
1807    o add Adams-Bashforth 3rd Order time stepping:
1808      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1809      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1810    checkpoint57g_pre
1811    
1812    o make lambda[Theta,Salt]ClimRelax spatially varying
1813      (default remains spatially uniform constant based on tau)
1814    o added new control variables
1815      * init. uVel, vVel, etanN
1816      * lambda[Theta,Salt]ClimRelax
1817    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1818      (suggested by G. Forget)
1819    
1820    checkpoint57f_post
1821    o add parameter "baseTime" = model base time = time at iteration zero
1822      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1823      account for baseTime shift
1824    o move Coriolis arrays from PARAMS.h to GRID.h
1825    checkpoint57f_pre
1826    
1827    o mnc-ifying the seaice package
1828    o introduced an alternative length scale calculation for use in the limiting
1829      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1830    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1831    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1832      as well as grad(vort3).  Made it compatible with both approximate form
1833      for the cubed sphere and full form of these gradients.  Added flag
1834      useFullLeith to select between approximate and full form.  
1835    o add "d0" in getcon.F to reduce differences between compilers/platforms
1836      update output.txt of exp. fizhi-gridalt-hs
1837    o change port_rand funtion to allow to set the seed.
1838    o fix obscure MNC bug involving conversion between reals and integers
1839      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1840        new version is now more standards-compliant
1841    o adjoint-related modifications
1842      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1843      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1844      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1845    
1846    checkpoint57e_post
1847    o Adding eddy stress controls a la Ferreira et al.
1848    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1849    
1850    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1851      update output.txt of exp. fizhi-gridalt-hs
1852    o add more "Z" dimensions and associated coordinate vars to MNC
1853    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1854    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1855      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1856      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1857      months and years.  Requires pkg/cal.
1858    o diagnostics: add pickup functionality
1859      - off by default for backwards compatibility
1860      - current version only uses MDSIO -- MNC will be added
1861    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1862    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1863    
1864    checkpoint57d_post
1865    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1866    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1867      output from the diagnostics package
1868    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1869    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1870      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1871    o add coordinate variables to the MNC output from the diagnostics package
1872    o change MNC-flags default value: true when useMNC=TRUE
1873    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1874      the ability (off by default) to read the grid information using MNC
1875    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1876    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1877    o do snap-shot diagnostics at the middle of the time-interval (instead of
1878      at the end).
1879    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1880      new test for AIM with thSIce + slab-ocean
1881    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1882    o move state variable diagnostics to the beginning of the time step ;
1883      (note: still needs some work specially for snap-shot diagnostics)
1884      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1885    
1886    checkpoint57c_post
1887    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1888    o generate new output.txt files on faulks with g77 & the new -ieee option
1889    checkpoint57c_pre
1890    
1891    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1892      update output.txt of exp. global_ocean.90x40x15
1893    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1894      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1895    o add saltFlux(+File) forcing capability with periodicExternalForcing
1896    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1897    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1898    o improvements for the MNC output from DIAGNOSTICS:
1899      - correct handling of the unlimitied dimension
1900      - all dims now have associated coordinate variables
1901      - variables located at U, V, and Corner ("Z") points are now written
1902        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1903        *all* data points are output
1904    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1905    o added pkg/seaice/seaice_monitor.F
1906    o mdsio_readfield.F can now read files visible only to master MPI process.
1907    o pkg/seaice: some test code for ice-modified ocean stress
1908    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1909      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1910      spurious negative numbers for precipitation and humidity.  Will cause
1911      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1912    o pkg/ctrl/
1913      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1914        May be enabled via doPackDiag
1915      *  introduce z-scaling of
1916         + gradient (doZscalePack) and
1917         + control (doZscaleUnpack)
1918    o pkg/mdsio/
1919      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1920      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1921    
1922    checkpoint57b_post
1923    o simplify options in diagnostics_fill arguments (remove weird combinations)
1924    o fix MNC coordinate variables so that they now contain per-face index
1925      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1926      general, EXCH2 grids are only aligned to a "local" coordinate system
1927    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1928    o Implement instantaneous output within pkg diagnostics:
1929      setting a negative frequency in data.diagnostics produces
1930     "snap-shot" output (as opposed to time-average if freq > 0)
1931    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1932      NOTE: change ptracer diagnostics name: use 2 characters to work with
1933            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1934    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1935      becomes the coordinate variable for the 'T' dimension
1936    o add CF-style coordinate variables to MNC
1937      - just a first cut:  numbers are meaningless on the cubesphere and
1938        missing along the T axis but otherwise it works!
1939    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1940    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1941    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1942      this is based directly on what the model compute, so that the content of
1943      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1944    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1945    o clean up build options files for SunOS, in particular
1946      - remove -traditional from xmakedepend
1947      - change -xarch=v9 to -xarch=native for f77
1948      - restore use of make (not gmake)
1949      - add CC=gcc if using g77
1950    o changes per discussion of AM, JMC, & EH3 today:
1951      - move redundant "grid" variables out of "state" -- in preparation of
1952        creating proper CF-style coordinate variables and in recognition
1953        that any/all grid variables can be easily copied (eg. w/NCO) from
1954        the grid files into any of the other NetCDF files
1955      - *always* output grid variables with MDSIO (this will eventually be
1956        changed)
1957      - output MNC grid file if useMNC is true
1958    o every instance of _END_MASTER() has been found and replaced with
1959      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1960      preprocessors
1961    o re-arrange diagnostics pkg initialisation:
1962     - allow each package to extend the available diagnostics list
1963     - add some checking and fix small problems (multi-threaded, ...)
1964     - new S/R diagnostics_fill (replace fill_diagnostics):
1965       look through the short list of active diag. (instead of the long list)
1966       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1967    
1968    checkpoint57a_post
1969    o this set of changes restores TAMC compatibility
1970      tested for global_ocean.90x40x15 adjoint on trough
1971      (what a pain)
1972    
1973    checkpoint57a_pre
1974    o some modifs in tools/build_options for sunos
1975    o call ctrl_pack for ctrl at end for optimcycle=0
1976    
1977    checkpoint57
1978    o add horizontal bi-harmonic viscosity for vertical velocity
1979      - new parameter viscA4W (defaults to viscA4)
1980      - affects only non-hydrostatic code
1981      - to be done: no-slip lateral boundary conditions
1982    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1983    o implement Implicit Vertical advection for pTracers
1984    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1985      (implemented also for implicit vertical diffusion & advection)
1986    o OBCS: extend application of tracer open boundary conditions
1987      to a strip beyond the boundary of width Olx/Oly
1988    o add call monitor to TAF set of required calls (flow directives)
1989      and include in natl_box_adjoint
1990    o untangle a few ifdefs related to cost, ctrl, autodiff
1991      untangel a few ALLOW_ECCO_OPTIMIZATION
1992    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1993      (theta2, salt2 in ecco_cost_weights)
1994    
1995    checkpoint56c_post
1996    o OBCS as control variables
1997      - update ctrl_ad_diff.list, obcs_ad_diff.list
1998      - remove balance of obcs controls from default
1999      - fix index bug nobcs in ctrl_init
2000      - fix dummy fields filen in ctrl_pack
2001      - add dummy weights for obcs
2002    o lsopt: comment out fort.94 output
2003    o optim:
2004      - remove unnecessary header files
2005      - adjusted namelists
2006      - add xerbla.F to Makefile
2007    o exf:
2008      - multiple modifications of exf_check_range
2009      - unit change in exf_init_runoff from [m/year] to [m/s]
2010    o mdsio:
2011      - i/o-vector change debugLevel from debLevA to debLevB
2012    
2013    checkpoint56b_post
2014    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2015      is called from DO_THE_MODEL_IO
2016      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2017      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2018      - clean up PTRACERS_WRITE_TIMEAVE a little
2019    o add another verification experiment that tests both the cfc-pkg and
2020      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2021      reactive tendencies treated inline with regular timestepping
2022    o testreport previously did a lousy job of comparing small numbers, so
2023      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2024      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2025      testreport.
2026    o ptracers_monitor: bug fix for MPI
2027    
2028    checkpoint56a_post
2029    o GCHEM: finish reorganizating the package
2030      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2031        (introduces another 3D-array for each passive tracer, but only if
2032        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2033        gchemTendency is not needed because the timestep is done separately)
2034      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2035      - GCHEM is now---more or less cleanly---separate from PTRACERS
2036      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2037        so clear to me how that should be done in a general way.
2038    o CFC: improve formatting of output in CFC_ATMOS
2039    o PTRACERS:
2040      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2041        that ALL experiments with ptracers enable can be checked. This makes
2042        GCHEM_MONITOR obsolete.
2043      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2044        monitorFreq
2045      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2046    o add PTRACERS (PTR0[1-5]) to testreport output
2047    o exf_check_range:
2048      * default changed to .TRUE.
2049      * will check values for niter0 if debLevA, every timestep if debLevB
2050      * STOP in exf_check_range if 'out of range'
2051      * range chosen generous to allow for potential extema
2052      TBD: a version with stricter range
2053           permitted range would be runtime parameters
2054  o GMredi:  o GMredi:
2055    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2056    - 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 2059  o GCHEM:
2059    - 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
2060      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2061    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
2062      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2063        this flag is now only visible within GCHEM-pkg routines.
2064      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2065        be replaced by a 3D array that is computed before thermodynamics; for
2066        this, the tracer ID iTracer had to be included into the parameter list
2067        of ptracers_forcing
2068      - set up forward_step to call gchem_forcing, that will replace
2069        gchem_forcing_int in ptracers_forcing
2070      - cleaning up
2071  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
2072    
2073  checkpoint56  checkpoint56

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