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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.1044 by mlosch, Wed Nov 26 08:42:28 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 gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
8      a still unfixed compiler/optimization bug
9    
10    checkpoint61f
11    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
12      update results of global_ocean.cs32x15.icedyn test.
13    o move getcon.F from model/src to pkg/fizhi.
14    o pkg/exf: add parameter for extrapolation of temp up to the surface
15       and option to prevent negative evap (in bulk_largeyeager04 only).
16    o Prather Advection scheme: fix tracer conservation for divergent flow
17      (e.g., when using NonLin Free-Surface).
18    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
19    o gmredi (Visbeck-variable-K):
20     - add more parameters to Visbeck-variable-K.
21     - use a 5 points average for dSigmaR in Visbeck-K calculation
22       (more "homogenous": same stencil and same weights as in dSigmaH)
23     - update output of ideal_2D_oce experiment.
24    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
25      (#undef REAL4_IS_SLOW)
26     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
27       coordinate variable
28     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
29       (surface forcing fields), removes some of the functionality
30     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
31     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
32       probably not all: copy _RS surface flux fields to RL field before
33       calling DIAGNOSTICS_FILL
34     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
35       real*4 (CALL EXCH_*_RS) versions.
36     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
37       (generate new output).
38    
39    checkpoint61e
40    o gmredi (Visbeck-variable-K):
41      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
42      - change computation of Visbeck-K where Slope > Smax :        
43        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
44        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
45    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
46      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
47    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
48    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
49      does not become too large (to avoid precision problems in implicit-diffusion
50      solver); update ideal_2D_oce output.
51    o pkg ggl90:
52      - in ggl90_cal.F: compute only one set of visc/diff, used to
53        step forward TKE/T/S/momentum
54      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
55        have Prandlt =1)
56    o gmredi (fm07):
57      - add lower limit on Transition layer thickness + lower limit on 1/lambda
58      - allow to set few more params from data.gmredi
59    o pkg ggl90:
60          - add missing sqrt(2) factor in computation of mixing length
61            scale in ggl90_calc.F
62            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
63    
64    checkpoint61d
65    o adjoint modifs
66      - adapt to new field rhoInSitu
67      - allow to revert from StoreDynVars2D, StoreDynVars3D
68        to individual fields
69        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
70    o store 3-D (in-situ) density in commom block (DYNVARS.h)
71     - save 1 rho computation.
72     - no longer modify T & S inland when using down_slope pkg.
73    o gad_som : allow to switch to SOM advection for T & S without corresponding
74      pickup files (using new S/R: MDS_CHECK4FILE).
75    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
76      (for useSingleCpuIO to work in multi-threaded)
77    o pkg/shelfice:
78     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
79       with SHELFICEtopoFile in data.shelfice
80     - move code for reading ice shelf topography and modifying hFacC into separate
81       subroutines of the shelfice package
82     - separate initialisation of "fixed" and "variable" variables
83     - kTopC is not (yet) replaced by kSurfC, although this is possible
84    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
85    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
86      and rename:
87      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
88      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
89    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
90    
91    checkpoint61c
92    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
93      to add mass source/sink of fluid in the interior (3-D generalisation
94      of oceanic real-fresh water flux).
95    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
96    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
97    o new pkg: down_slope
98      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
99      - presently, modify T & S inland (dwnslp_calc_rho.F).
100        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
101      - implementation for ocean in P-coords not tested.
102      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
103    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
104      (to facilitate conversion of oceanic pkg to p-coordinate).
105    o change FIND_RHO to FIND_RHO_2D :
106      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
107    o new pkg: cheapaml
108    
109    checkpoint61b
110    o exch2:
111      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
112      - no longer depend on the order sequence (N,S,E,W).
113      - 3rd exchange no longer needed (tested with 24 tiles).
114      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
115      - exch_UV_A-grid readily available (but not yet tested).
116      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
117      (both are no longer needed) in exch_uv: no effect in forward run; but
118       get truncation error differences with adjoint exch.
119    o exch2:
120     - change index-bounds storage (moved from target to local tile,
121       more intuitive this way) ; rename/remove some variables.
122     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
123    
124    checkpoint61a
125    o exch2/matlab-topology-generator:
126      fix bug in index bounds for N-S internal exchange (hard to tell if this
127      had any effect on the solution).
128    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
129      is exceeded
130    o testreport: modify syntax of awk, so that it works also with
131      awk, and not only with nawk and gawk
132    
133    checkpoint61
134    o autodiff
135      Change default for TAF usage by removing argument '-nonew_arg'
136      This changes TAF subroutine argument list (ordering of active var.)
137      Omission of this flag leads to incompatibility w.r.t. TAMC
138      To restore TAMC-compatibility, need following modifs:
139      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
140      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
141      Tested TAF version is 1.9.22
142      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
143    
144    checkpoint60
145    --->>> This is the last checkpoint for which generating the adjoint
146    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
147    --->>> by default.
148    --->>> Future checkpoints will ommit this flag by default.
149    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
150    o pkg/grdchk: Add gradient check to etan0 perturbations.
151    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
152    o pkg/autodiff: more flexibility in zeroadj.
153      model/src: modifying do_oceanic_phys.F accordingly.
154    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
155    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
156      special setup of gmredi for which the adjoint is stable
157      enough for parameter optimization.
158    o bridging the gap between eddy stress and GM.
159      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
160          along with a change in CPP option (now ALLOW_EDDYPSI).
161      -> when using GM w/ GM_AdvForm:
162          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
163          is applied either in the tracer Eq. or in momentum Eq.
164          depending on data.gmredi (intro. GM_InMomAsStress).
165      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
166      The key modifications are in model/src/taueddy_external_forcing.F
167      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
168    
169    checkpoint59r
170    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
171      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
172      fix option to read coriolis(@ cell-corner) from files with CS-grid.
173    o pkg/mnc: add some attributes to standard 1D-coordinate variables
174    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
175      mass points, when using mnc for output
176      - add runtime parameter (missing_value, missing_value_int) to override
177        default (which is the value of getcon('UNDEF'))
178    o pkg/mnc: prepare mnc for the actual use of missing values with the
179      diagnostics package: small fix in mnc_cw_readwrite.template and more
180      initialisation of never used fields
181      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
182      versions
183    o pkg/thsice/thsice_ini_vars.F added default initial values so that
184      thermodynamics sea ice solver does not blow up when some initial fields
185      are missing.
186    o move from external_forcing_surf.F to ini_forcing.F
187      the p-coord. hack consisting in using pLoad to set phi0surf ;
188      update output of tutorial_global_oce_in_p (affected @ truncation level).
189    o Freshen up a bit hs94.1x64x5, notably:
190      remove rotationPeriod and tRef=5*0. (adjoint only), and add
191      exactConserv=.TRUE.
192    o pkg/generic_advdiff:
193      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
194      applies to files where Temperature & Salinity 2nd Order moments are used.
195    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
196      this uses a dynamically allocated internal state data structure
197      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
198      and requires a fortran 90 compiler
199    
200    checkpoint59q
201    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
202       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
203    o Refresh tutorial_global_oce_biogeo, notably:
204      - change bathymetry (put back seamounts in ACC, use hFacs)
205      - change EOS (POLY3 --> JMD95Z)
206      - use Bryan-Lewis vertical diffusivity
207      - use multidimensional advection
208      - remove old virtual virtual in dic pkg, now done through ptracer pkg
209      - change a couple of parameters in dic pkg
210    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
211    o pkg/obcs: change default to OBCSfixTopo = .true.,
212      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
213      - replace "debugMode" with "debugLevel .GE. debLevB"
214    o implementation of TAF directives for gchem,cfc,dic
215    o remove "exp5" (replaced by tutorial_deep_convection).
216    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
217      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
218      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
219      --> changes results in exp4, seaice_obcs
220    o tutorial_deep_convection :
221      update the set-up and increase resolution and domain size ; start
222      from pseudo initial conditions = output at t=120mn in order to see
223      something happening when running testreport.
224    o pkg/seaice: add os7mp as an advection scheme
225                  add check for advection schemes
226                  add a flag for restoring T and S underneath sea ice
227    o pkg/my82: add netcdf-support and diagnostics
228    o thsice pkg:
229      - Now hsMax limits snow height by turning it into ice following
230        flooding scheme (and now conserving energy)
231      - Slight rewriting of the formula in thsice_calc_thick.F
232      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
233      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
234    
235    checkpoint59p
236    o gchem / dic / cfc :
237      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
238      - add new parameter files: "data.dic" & "data.cfc" ;
239      - various re-arrangement in initialisation & header file ;
240      - fix tutorial_global_oce_biogeo for multi-threaded test.
241    o pkg/dic: test for "pickup_dic" file when restarting ;
242      if no pickup-file, can restart with a re-initialised pH (same as it did
243      before) providing pickupStrictlyMatch is set to False.
244    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
245      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
246    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
247      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
248    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
249     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
250       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
251    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
252       scheme to use for vorticty-term ;
253     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
254       (with default selectVortScheme, return to original discretisation)
255     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
256    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
257    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
258      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
259      also fix diagnostics VISCAHW & VISCA4W.
260    
261    checkpoint59o
262    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
263    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
264      move a few statemens out the main loop into separate loops
265    o pkg/shelfice:
266      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
267        (kg/m^2/s), does not break tests, because in verification/isomip,
268        rhoConstFresh=rhoConst (by accident)
269      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
270      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
271        new file model/src/seawater.F, so that they are available for all pkgs.
272      - convert potential temperature into in-situ temperature. This changes the
273        isomip tests => update tests
274    o add a flag writePickupAtEnd (default=true) to be able to suppress
275      writing a pickup at the last timestep
276    o tools/mpack-1.6 :
277      - disable automake (not working) and autoconf (not needed).
278      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
279        also cleaner with much less compilation warnings.
280    o pkg/profiles:
281      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
282      (for "less than 32 characters name" compiler requirement)
283    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
284      conditions that have a different sampling frequency than S/T/U/V obcs
285    o pkg/diagnostics (stats-diags):
286      - fix global Min/Max in case 1 processor get only empty tiles
287    o genmake2: replace (4 times)
288         make genmake_tc_1.o >> genmake_warnings 2>&1
289      with
290         COMM="$CC $CFLAGS -c genmake_tc_1.c"
291         echo $COMM >> genmake_warnings
292         $COMM >> genmake_warnings 2>&1
293      to make genmake2 always see the value of CC as specified in the optfile.
294    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
295      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
296      - modify verification advect_cs test to test SOM-advection on CS-grid.
297    o pkg/ctrl:
298      - Rewrite of ctrl_map_ini_ecco.F,
299        introducing a generic routine (ctrl_map_ini_gen.F).
300      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
301    
302    checkpoint59n
303    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
304      number in dedicate array "hdiag":
305      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
306        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
307      - many small changes (integer format) for large number of diagnostics
308      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
309        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
310    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
311      usingSphericalGrid, this allows to define the rotated grid coordinates
312      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
313      geographical coordinates according to the inverse of the rotation defined
314      by the Euler angles, so that Coriolis parameter and online-interpolation by
315      exf works with the geographical coordinates on XC/YC/XG/YG.
316      Naturally, this feature does not work with all packages, so some
317      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
318      profiles), because there the coordinates are assumed to be regular
319      spherical grid coordinates.
320    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
321      - introduce isopycnal diffusion coefficient control.
322    o tools/adjoint_options:
323      - additional control vector components.
324    o pkg/mnc: have mnc create marginally meaning full coordinate variables
325      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
326    o pkg/mypackage:
327      - add example of read/write pickup for state-var ;
328      - add entry points to the main code for state-vars diags & write-pickup.
329    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
330      transitions for useExfYearlyFields
331      - add new subroutine that determines the file to read from for
332        use*YearlyFields = .TRUE. and .FALSE.
333      - add a verification experiment to global_with_exf that tests
334        useExfYearlyFields with USE_EXF_INTERPOLATION defined
335    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
336      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
337      subroutines (which could be generated from a template, because they are
338      almost identical), for now they are included in obcs_prescribe_read.F for
339      simplicity
340    o pkg/exf:
341      - add a little more diagnostic to exf_interp_read (in analogy to
342        mds_read_field, can be turned off with debugLevel < debugLevA=1)
343      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
344        ugly but fast by unrolling short inner loops, inserting a unroll=8
345        directive in routine lagran, and splitting a loop and making do while the
346        outermost loop (the latter requires the intoduction of index arrays)
347    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
348    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
349      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
350    o verification/seaice_obcs: updated for restart test and latest options
351    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
352      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
353      for now this is only available for the C-grid code and also within
354      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
355    
356    checkpoint59m
357    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
358      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
359    o gad_som : fix flux output (& diagnostics) to have same units as other  
360      advection scheme fluxes (was previously multiplied by deltaT).  
361    o added verification/seaice_obcs both to test seaice open boundaries
362      and to provide an example matlab scrpt for generating them
363    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
364    o pkg/salt_plume: clean up salt_plume_frac.F to
365      remove redundancy in PlumeMethod 1 and 4
366    o pkg/kpp: added saltplume diagnostics
367    o pkg/obcs and pkg/seaice:
368      - do not set uice and vice to zero when OB*icefile are unspecified
369      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
370      - moved seaice tracer obcs after call to seaice_growth
371    o pkg/salt_plume: added various options for salt plume depth
372      criterion and for vertical distribution of the salt
373    
374    checkpoint59l
375    o pkg/ptracers: new version of ptracers pickup:
376      read meta file and write only fields which are needed to restart.
377      ( same logic as main pickup file ; also using pickupStrictlyMatch )
378    o pkg/seaice:
379      - add timescale for melting due to warm mixed layer as a means of
380        setting SEAICE_availHeatFrac more conveniently
381      - add a CPP-flag/runtime parameter check for flooding algorithm
382      - reformulated availHeat in seaice_growth.F to be independent of AREA
383    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
384      unit changes
385    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
386    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
387      SX vector computer.
388    o pkg/seaice:
389      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
390        seaice forcing fields can now be read only through pkg/exf
391      - removed some unused halos
392    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
393    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
394      or U/VICE from U/VWIND before computing U/VSTRESS
395    
396    checkpoint59k
397    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
398      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
399    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
400      all experiments pass when compile with un-initialised var. checking option.
401    o added pkg/salt_plume
402    o script to test restart (for now, in MITgcm_contrib/jmc_script)
403    o pkg/seaice: new read/write pickup version.
404      read meta file and write only fields which are needed to restart.
405      ( same logic as main pickup file ; also using pickupStrictlyMatch )
406    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
407    o lab_sea.hb87: modify the domain & update output.hb87.txt :
408      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
409      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
410      process. Fixed here by closing the domain at the Northern boundary.
411    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
412    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
413      a set of consecutive levels in/from a 3-D array.
414    o pkg/ptracers:
415      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
416      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
417    
418    checkpoint59j
419    o in pkgs: dic, obcs, offline, rbcs:
420      standard way to compute coeff. for time interpolation between 2 time reccords
421      which retains full precision (& make results less dependent on compiler).
422      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
423    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
424      packages instead of reading ice cover and wind speed separately
425    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
426     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
427      to allow to compile customized code before the update)
428    o cleaning-up:
429      - fix CPP instruction syntax in pkg/obcs
430      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
431        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
432      - fix some threads issue in IO parts.
433    o pkg/dic:
434      - add tons of "_d 0" (--> much better testreports !)
435       and then update outputs of tutorial_global_oce_biogeo
436    o pkg/mom_fluxform:
437      add a special version of momentum advection intended to conserve momentum
438      next to a bathymetry step or a coastline edge. (default = off = #undef)
439    o new read/write pickup version:
440      - for now, only implemented for main (mdsio) pickup file.
441      - write out only what is needed to restart; merge pickup_nh , pickup_ph
442        and main pickup together.
443      - read meta file; read only what is needed to restart; stop if a field
444        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
445        if it make sense (even if the restart is not perfect).
446      - if no meta file, assume that pickup to read corresponds exactly to
447        a pickup that would currently be written.
448      - read pickup written in the old format (until checkpoint59i) if it
449        recognizes an old meta file (no field-list).
450      - add a meta file in exp. which starts from a pickup: 2 cases:
451        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
452         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
453        b) a meta file describing the content of the associated pickup file
454         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
455    o pkg/mdsio & pkg/rw:
456      - new routine to read a meta file ; new set of routine to read
457        Multiple-fields file (with meta file).
458    o added open boundary conditions capability for seaice
459        HSNOW, HSALT, UICE, and VICE
460    
461    checkpoint59i
462    o adjoint:
463      * fix multiDimAdvection adjoint
464        (partial recomputation problem by TAF for fVerT(:,:,kDown)
465        and comlev1 size definition (maxpass vs. max. number of tracers)
466      * verification/global_ocean.90x45x15 adjoint now tests
467        NLFS and multiDimAdvection using DST3 (=30)
468      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
469    o pkg/kpp: add "_d 0" to real constant (if missing);
470      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
471      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
472    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
473      for internal parameters related to restart process (formerly from PARAMS.h)
474      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
475    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
476      as argument. (only atm2d & obcs write_pickup have not yet been updated)
477    o pkg/monitor:
478      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
479      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
480      - account for deep Atmosphere factor and density factor (anelastic)
481    o added open boundary conditions capability for seaice HEFF and AREA
482    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
483      thermodynamics
484      - requires a little reorganization, which affects the testreport results
485        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
486        so that now the conservative form is tested
487      - add a few comments
488    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
489    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
490    o add new diagnostics to seaice: advective, diffusive fluxes (only for
491      multidim-advection, for scheme 2 they are not filled) and transports,
492      thermodynamic growth rates
493    o change units of EmPmR (inside the code, + within coupling interface)
494      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
495      Affects results @ truncation level (cg2d match) and update output of
496       experiments: lab_sea(6), global_ocean.90x40x15(10),
497      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
498      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
499      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
500      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
501    
502    checkpoint59h
503    o pkg/exf:
504      - improve vectorization by moving if-statement out of loops in
505        exf_mapfields, exf_radiation
506      - exf_bulkformulae.F: introduce 2D fields and vectorize code
507    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
508    o testreport:
509      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
510        monitor & update offline_exf_seaice exp. output.
511      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
512    o pkg/seaice:
513      - bug fix in the evp solver: boundary conditions were affected be
514        masking of zMax/zMin (changes results)
515      - minor bug fix in boundary conditions in seaice_calc_strainrates
516        (changes results for no_slip)
517      - seaice_lsr.F: make interpolation of eta dependent on boundaries
518      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
519      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
520        stress formulation and no-slip boundary conditions
521    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
522      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
523    o pkg/seaice: a first HSALT time stepping equation has been checked in
524    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
525      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
526      without requiring DO-IF statements
527    o pkg/thsice:
528      use continuous power-law function for partition of energy between lateral
529      melting/freezing and thinning/thickening ; old code using step function
530      still available with #undef THSICE_FRACEN_POWERLAW
531      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
532    o testreport: change AD testing : check against results/output_adm.txt
533      using same scripts as for forward test.
534    
535    checkpoint59g
536    o adjoint testing: in preparation for changing testreport:
537      - output format: cost and grad written on separated lines
538      - ad output results in directory "results" (instead of "results_ad")
539    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
540    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
541    o pkg/ecco: allow user defined cost function contributions
542    o testreport:
543      Allow to choose (per experiment) the list of tested output variables
544       and the main variable (used to issue a pass/FAIL ) ;
545      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
546      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
547      Also modify printing of summary:
548       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
549       b) echo the list of tested variables in the individual summary.txt of
550          each experiment.
551    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
552      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
553      (but still depend on the tile decompostion of the domain).
554    o pkg/seaice: change a discretization detail to make the B-grid code
555      "more symmetric". This change is likely to remove all "ridges/leads" that
556      where quasi-aligned with the grid in B-grid solutions. It may also be
557      the solution to the stress coupling issues with the B-grid.
558    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
559      remove .cvsignore from input dir. (since testreport no longer run here).
560    o pkg/thsice:
561     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
562     - fix reshaping of sea-ice just after advection:
563       melt all the ice only if ice-volume is too small.
564     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
565       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
566     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
567    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
568      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
569    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
570      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
571      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
572      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
573      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
574      -> update output.txt
575    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
576     this affects truncation error: -> update output.txt of exp:
577      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
578      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
579    
580    checkpoint59f
581    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
582    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
583      a bounded range (in forward mode)
584    o pkg/ecco, ctrl, autodiff and mom_common:
585     internal parameter controls, completements of implementations
586    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
587    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
588      (not seem any difference in testing results).
589    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
590       at face corners.
591    o pkg/generic_advdiff:
592     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
593      loop range indices for computing vertical advection tendency
594      and do the calculation in the interior only (no overlap) ;
595      for now, only implemented for SOM advection (to save CPU time).
596     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
597    o exch2 adjoint
598      First set of changes:
599      - add exch2 hand-written adjoint templates
600      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
601        This will require cleanup in pkg/autodiff/*.F
602        (changed routines currently kept separate in verif. code/)
603      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
604        that used to hide exch2 or cubed-sphere specific code
605        (commented via 'cph-exch2')
606    o pkg/seaice
607      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
608    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
609       output of global_ocean.cs32x15.thsice .
610    
611    checkpoint59e
612    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
613      for B-grid vector (not yet tested) and C-grid vector (<- only used
614      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
615    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
616      (#ifdef ALLOW_SALT_PLUME)
617    o gather_2d/scatter_2d: removed halo regions
618    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
619      scheme and the corresponding test case (under front_relax dir). For now,
620      only available with Skew-flux form and not yet tested in realistic set-up.
621      adjoint: store directives updated, but gradient checks deteriorated,
622      so maybe GM/Redi adjoint is now broken.
623    o seaice adjoint
624      * add AREA, HEFF, HSNOW as control variable
625        (should not change lab_sea results)
626      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
627    o pkg/seaice:
628      * added computation of saltFlux in seaice_growth;
629        For time being, sea ice salinity is assumed constant
630        contribution of snow flooding to freshening of sea ice is neglected.
631        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
632        defaults to 0.0 in order to maintain backward compatibility.
633        Typical values for SEAICE_salinity are 4 to 10 g/kg.
634      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
635      * added SEAICE_availHeatFrac, which specifies fraction of surface level
636        heat content used to melt or grow ice
637      * commented out cap of HICE: it helps keep ice thinner
638      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
639      * applied OBCS T/S mask to HEFFM sea ice mask
640    
641    checkpoint59d
642    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
643     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
644     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
645    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
646     and change default value of parameter "GM_Small_Number";
647     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
648       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
649       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
650    o pkg/ecco: cost function when applying pkg/smooth to controls
651    o pkg/ctrl: add forcingPrecond run time parameter
652    o pkg/seaice:
653     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
654     - fix bug in metric terms of u-equation in LSR solver (implicit part),
655       changes verification/lab_sea
656     - rearrange implicit part of u-equation in LSR solver to make it easier to
657       read, understand, and debug. This causes changes at the truncation level.
658     - fix (serious) bug in the boundary conditions (sign error in the implicit
659       part) of the LSR solver. Changes all LSR results.
660     - fixed problem with HSNOW initialization to avoid thick snow when AREA
661       is initilized with small values - does not change lab_sea results.
662     - added HsnowFile initialization capability
663    o pkg/smooth: addition to model/src and pkg/ctrl so allow
664     initialization of pkg/smooth and application to control vector
665    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
666    o dependencies: pkg/profiles requires pkg/cal
667    o pkg/profiles:
668     - added option ALLOW_PROFILES_GENERICGRID
669         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
670         that interpolation information (grid points and coefficients) is provided
671         within the netcdf input files.
672         -> sample matlab scripts can be found in MITgcm_contrib/gael
673         that allow you to prepare netcdf input files.
674     - also modified: cleaner include statements, cleaner error print statements,
675       cleaner stops when error, and more tests of the netcdf input files consistency.
676    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
677    o pkg/seaice:
678     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
679       requires a new routine: seaice_diagnostics_fill.F
680     - make sure that seaice does not move if not forced (pressure replacement
681       method, Hibler and Ip, 1995), changes results
682     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
683     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
684       It is turned off by default (=-1.), because it changes the results.
685     - make it possible to read AREA from a file, too.
686    
687    checkpoint59c
688    o add S/R and diagnostics for oceanic mixed-layer depth
689    o move GMRedi call after all vertical mixing schemes (including KPP)
690    o pkg/thsice:
691     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
692      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
693    o pkg/obcs:
694     - bug fix for balance code
695    o pkg/seaice:
696      - allow values of SEAICE_elasticParm > 1
697      - add new parameter SEAICE_evpTauRelax as an alternative
698        to SEAICE_elasticParm
699      - make lsr boundary conditions free slip (by default), changes result
700      - add code for no slip boundary conditions for lsr
701      - set minimum of zeta to zero (and not 4e8) (changes results)
702      - add a cap on AREA after advecting AREA if seaice_growth is not called
703    o change calculation of Visbeck K:
704      - no longer depend on tapering scheme; instead, compute slope (limited
705        by GM_maxSlope). this is equivalent to what was comuted before with
706        clipping or linear tappering.
707      - fix vertical averaging (wrong by 1/2 level)
708      - leave the old version (but will not be maintained) within
709        #ifdef OLD_VISBECK_CALC / #endif
710      - update output of exp. ideal_2D_oce
711    o change error catch in calc_r_star to improve vectorization
712    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
713      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
714    o adjoint:
715      Re-organized adjoint checkpointing according to Matt Mazloff
716      (but with modifs/completions/cleanups)
717      Storing is now bundled into large arrays to optimized I/O
718      (and second step in cleanup of the_main_loop)
719    
720    checkpoint59b
721    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
722      - export/import (between ocean & coupler) fields needed for ocean DIC.
723    o pkg/seaice:
724      - get rid of three more exchanges seaice_calc_viscosities (required
725        different loop boundaries in seaice_lsr and seaice_ocean_stress)
726      - bug fix in seaice_ocean_stress (update of lab_sea required)
727      - reduce loop boundaries to necessary minimum also in seaice_evp
728      - go back to the old way of computing deltaC/Z as the adjoint likes that
729        better
730    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
731      passive tracer to an Age Tracer) + update output.txt
732    o pkg/exf:
733      - implement A-grid / C-grid selection for wind-stress input files.
734      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
735      for now, in exf_bulk_largeyeager04.F only :
736      - change implementation for case where windspeed + 2. components wind-stress
737        are read-in. AND use rhoConstFresh to convert evap.
738    o pkg/seaice:
739      - use correct EXCH_UV for wind-forcing (on A-grid).
740      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
741        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
742    o pkg/exf:
743      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
744      EXF_INTERPOLATION:
745      - merge global_with_exf/code version of exf_interp_read.F
746        to the main code ;
747      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
748        reading the file ; Important: This options needs to be defined to recover
749        previous code.
750        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
751      - no longer loose real*8 precision along the way when using exf_iprec=64.
752    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
753      - change discretisation of evp-solver in order to avoid another exchange
754        (changes lab_sea) and clean up a little
755      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
756        help the adjoint (this also changes the results slightly)
757      - add a few "_d 0" where they had been missing in seaice_evp.F
758      - cleaning up: remove unused seaice_calc_rhs.F
759    o pkg/exf: some cleaning-up:
760      - change various "constants" into runtime parameters
761      - cleaned-up Large&Yeager04 routine which should eventually
762        replace exf_bulkformulae.F (changed names of S/R and CPP)
763        and merged various ALLOW_ATM_WIND options
764     only used with thsice pkg (in thsice_get_exf.F):
765      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
766        which are used when useStabilityFct_overIce=TRUE (= the default)
767      - change default values of ice & snow emissivity and scale downward LW
768        by ice & snow emissivity.
769    o pkg/thsice:
770     fix few little problems, in thsice_calc_thickn.F:
771      - growth vertically (and not laterally) if iceFrac == iceMaskMax
772      - melt only laterally if hIce < hThinIce (as the comments say)
773      and in thsice_extend.F:
774      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
775      - start to form ice as soon as the minimum ice-volume is reachable.
776     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
777      and cpl_aim+ocn
778    o pkg/kpp
779     - move computation of surface related input fields to KPP into a new
780       subroutine kpp_forcing_surf.F
781     - remove wrong (within bi,bj loops) EXCH calls.
782     - little cleaning (add argument myThid in last position, cvs header ...)
783     - for now, fix conservation problem by exchanging KPPviscAz (may not
784       be the best fix)
785    o pkg/seaice
786     - check for inconsistent evp parameter/cpp-flag combination
787     - remove leftover errIO flat for obsolete name list error handling
788    o OpenAD
789     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
790    
791    checkpoint59a
792    o pkg/seaice: some parameter clarifications and a little bit of clean up
793    o pkg/thsice: rename run-time parameters:
794       himin       -> hIceMin
795       himin0      -> hThinIce
796       hihig       -> hThickIce
797       i0          -> i0swFrac
798       transCoef   -> bMeltCoef
799       frac_energy -> fracMelting
800      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
801       with default values (for now) that do not change the results.
802      remove old version of thsice vars advection in pkg/seaice.
803    o in FFIELDS.h:
804      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
805      - make pLoad & sIceLoad always available (but still only used if
806         ATMOSPHERIC_LOADING is #define).
807    o pkg/kpp: replaced _KPP_RL with _RL
808    o bug fixes for vertical diffusivity computations when both KPP and
809        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
810        are no longer updating the vertical diffusivity array
811        (passed as argument) but are (re-) setting those arrays.
812    o pkg/seaice: fix bug in evp solver, while doing that
813      - change (improve?) discretization of stress computations for both
814        cgrid-lsr and evp solver
815      - add a new routine to compute strain rates
816      - the above changes lab_sea results
817      - add no slip conditions for evp solver (off by default), lsr-version
818        may follow
819      - fix exchange for shear at Z-points (does not change lab_sea)
820      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
821        (to force the user to pick a time step since there is not "safe" way
822        of choosing it)
823      - add principal stress diagnostics
824      - rearrange fields for evp a little to avoid having to call a: too many
825        exchanges and b: exchanges for stress trensor components which we do
826        not have.
827      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
828        of evp, complete rewrite for lsr case (latter is does not yet work
829        in all cases)
830    o pkg/kpp: add code to have mixing in shelf ice caverns
831      - add myThid to all kpp routines (long overdue)
832    
833    checkpoint59
834    o pkg/exf:
835      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
836        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
837      - move exf header files from lower_case.h to UPPER_CASE.h ;
838        add missing cvs Header & Name
839      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
840      - add namelist param. selectStressGridPosition, exf_monFreq
841      - retire many _CLIM routines, and remove data.exf_clim
842        + params moved to data.exf
843        + climsst, climsss now handled by exf_set_gen, i.e.
844          climss?period=0 refers to constant field,
845          climss?period=-12 to monthly forcing
846      - split up namelists in data.exf
847    o pkg/seaice:
848      - remove seaice_exch and seaice_exch_uv
849      - remove superfluous exchange of theta
850      - add myThid to seaice_budget_ocean/ice
851      - add new interface for atmospheric wind forcing (C-grid only)
852        + new routine
853        + two new field (taux, tauy for stress over ice)
854        + removed one global field (DAIRN) for C-grid case only
855    o pkg/thsise
856      - 2nd set of modifs for thsice adjoint in conjunction with exf
857    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
858    
859    checkpoint58y_post
860    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
861      vertical diffusivity, similar to that in MOM4; turned on using
862      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
863      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
864    o Added capability for 3D specification of background vertical diffusion
865      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
866      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
867      "data" file that contains the 3D vertical diffusivity coefficients.
868    o ice dynamics (pkg/seaice) with thsice thermodynamics:
869      - add code within pkg thsice to advect & diffuse sea-ice fields
870      similar to (and will replace) what has been added in  seaice_advdiff.F,
871      but: - conserving Mass, Heat & Salt.
872           - better when using non-linear advection scheme (not yet fully tested)
873           - can also be used in atmospheric set-up (for now, only the diffusion).
874    
875    checkpoint58x_post
876    o IO option for global-file compact format:
877      - add options when generating topology (utils/exch2/matlab-topology-generator)
878      - add I/O capability (pkg/mdsio).
879      - adapt utils/matlab/rdmds.m to read this format.
880      for now long-line format not yet supported by pkg/mdsio (& exch2).
881    o shelfice: add a few diagnostics
882    
883    checkpoint58w_post
884    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
885      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
886      (and replace horiVertRatio in NH code).
887      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
888                         and tutorial_plume_on_slope (sensitive to truncation)
889    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
890      directly to drive seaice model (C-grid only)
891    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
892     - reintroduce computation of wind from stress,
893     - compute tau (in exf_bulkformulae.F) from windstress averaged to
894       mass points to avoid tau = 0
895     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
896    o rdmnc.m: make it work with "global" files created with gluemnc
897    o rdmnc.m : some improvements in dealing with singleton dimension
898      (tested on all testreport mnc output files).
899    o genmake2: disable pkg/profiles if netcdf test fails.
900    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
901    o move call to cal_readparms up to make calendar parameters/variable available
902      to all packages
903    
904    checkpoint58v_post
905    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
906      useDynP_inEos_Zc tested.
907    o pkg/exf: changes to properly interpolate/mask/scale initial fields
908    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
909      and portions thereof.  See read_cs.txt for description and examples.
910    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
911      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
912      following the great-circle arc between those 2 points.
913    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
914      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
915    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
916     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
917     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
918     - still needs work (not working with some options ; efficiency to improve)
919       and serious testing.
920     - use this scheme for temperature & salinity in 2 advection test exp.:
921       advect_xy & advect_xz, respectively.
922    
923    checkpoint58u_post
924    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
925    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
926    o testreport: add option "-skipdir" to skip some test.
927    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
928      momentum calculation.
929    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
930    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
931      remove checkpoint.F and the_correction_step.F (no longer used);
932      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
933    o add option (linFSConserveTr) to correct for tracer source/sink due to
934      Linear Free surface
935    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
936    o pkg/thsice: fix reading mnc-pickups
937    
938    checkpoint58t_post
939    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
940    o pkg/mdsio:
941     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
942       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
943       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
944     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
945     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
946       either MDS_READ_FIELD or MDS_WRITE_FIELD )
947     - new S/R (to replace MDSWRITEMETA), which allows to write more
948       informations (variable names, time ...) to meta files.
949     - modify rdmds.m to give back the meta file content.
950    o pkg/diagnostics: change vertical interpolation to be safer, and more
951       flexible (define p-levels to interpolate to in data.diagnostics);
952      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
953       diagnostic pointer.
954    o pkg/seaice: more cleaning up of seaice_growth, added many comments
955    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
956    o fix multi-category seaice:
957     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
958       SEAICE_MULTICATEGORY
959     - fix short wave heat flux
960    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
961       and allow to use EVP solver. Change forward lab_sea: test both EVP
962       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
963    o Initial check-in of lab_sea adjoint
964      (very similar to natl_box_adjoint/code_seaice)
965      * used C-grid and EVP solver
966      * used KPP, GM/Redi
967      * uses inAdExact=.TRUE.
968      * gradient checks fail for both ADM and TLM
969        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
970        f.d. gradients actually seem more problematic than ADM, TLM gradients;
971        issue is related to forward mismatch between g77 an ifort
972    o pkg/seaice: overhaul of thermodynamics
973     - growth.F and groatb.F are replaced by new routine seaice_growth.F
974     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
975     - move a few global fields out of SEAICE.h into seaice_growth.F and
976       make them 2D (FICE/QNETO/ ...)
977     - remove FO (it is the same as QNETO)
978     - introduce a few local fields to avoid modifying external fields such
979       as atemp, etc.
980    
981    checkpoint58s_post
982    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
983      changed exf_set_gen.F so that
984        genperiod=0 means input file is one time-constant field and
985        genperiod=-12 means input file contains 12 monthly means
986    o CG2D: use pre-computed solver main-diagonal (stored in common block);
987      this affects truncation error ; generate new output file for exp. which
988      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
989        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
990        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
991        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
992        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
993        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
994    o start implementation of deep-atmosphere and anelastic formulation
995    o verification: remove 2nd copy of input files and use script "prepare_run"
996      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
997    o mom_common/vecinv/fluxform: fix a few initialisation isssues
998    o profiles: fix for multithreaded case
999    
1000    o diagnostics: rename few diags:
1001      s/'PRESSURE'/'RCENTER '/g
1002      s/'TICE    '/'oceFreez'/g
1003      s/'TAUX    '/'oceTAUX '/g
1004      s/'TAUY    '/'oceTAUY '/g
1005      s/'SWFLUX  '/'oceQsw  '/g
1006      s/DIFx/DFxE/g
1007      s/DIFy/DFyE/g
1008      and add few ocean-forcing diagnostics:
1009      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1010    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1011      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1012      as actual snow thickness.  It now refers everywhere to effective snow
1013      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1014    
1015    checkpoint58r_post
1016    o modifications to pkg/seaice/growth.F, which change results of
1017      lab_sea experiment: fixes pertain to melting snow over open water, to
1018      masking EVAP under sea ice, and to using the correct AREA variable for
1019      computations of EVAP, PRECIP, HSNOW, and GHEFF
1020    o add ability to read bathy, salt, and theta using MNC (off by def)
1021    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1022      both are turned off by default and do no change any results
1023    o seaice advection with pkg/thsice: a step toward the use of non-linear
1024      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1025    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1026      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1027      in natl_box (affects results @ truncation level: update output.txt)
1028    o multi-threading and IO:
1029      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1030      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1031        (needed to work with SingleCpuIO): tested in all verif. exp.
1032    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1033      affects the results (but none of the verification test uses this scheme).
1034    o Adding some pkg/diagnostics capability to pkg/seaice
1035      (will certainly be subject to changes)
1036    o ctrl: adding new control variables:
1037      lwflux, lwdown, evap, snowprecip, apressure, runoff
1038    
1039    checkpoint58q_post
1040    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1041      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1042      high_res_cube configuration by 4% on Columbia.
1043    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1044      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1045      dynamical allocation (seems to work in multi-threaded).
1046    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1047      single CPU io) so that TAF does not have to see EESUPPORT.h
1048    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1049    
1050    checkpoint58p_post
1051    o obcs: stop if obcs is used with useCDscheme = .true.
1052    o shelfice:
1053     - fix a sign error so that no slip at shelfice interface works
1054     - remove stop for combination non-hydrostatic code and shelfice. That does
1055       not mean, that the results are correct, but at least they are numerically
1056       stable
1057    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1058    o added adjoint exch routined for all exch*3d* routines
1059      and updated flow directives
1060    
1061    checkpoint58o_post
1062    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1063      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1064    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1065      and clean-up reading/writing of pickup files.
1066    o fix local version of read/write pickup (NH part) in rotating_tank/code
1067    o simplify EXCH interface:
1068     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1069     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1070    o added the regrid package
1071    o shelfice:
1072     - add a simple boundary layer scheme to reduce noise
1073     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1074    
1075    checkpoint58n_post
1076    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1077       local variable (not in common block).
1078    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1079      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1080      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1081        to work with SingleCpuIO.
1082    o add "_d 0" to real constant of pkg/cfc subroutines ;
1083       update exp. cfc_exemple & tutorial_cfc_offline output files.
1084    o multi-threading and IO:
1085      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1086        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1087      - barrier before and after reading.
1088      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1089      - avoid using MDS_WRITELOCAL for LAND pkg output.
1090      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1091        common-block variables ; Allows multi-threading with master-thread IO.
1092    o change default MAX_NO_THREADS from 32 to 4 ;
1093      and stop cleanly when MAX_NO_THREADS is too small.
1094    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1095    
1096    checkpoint58m_post
1097    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1098       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1099    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1100       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1101       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1102    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1103        add MITgcm_tutorials (= code + all the tutorials)
1104    o ecco, option to compute cost for total ssh (mean+anom)
1105    o consistent with addition of ptracer and ssh in pkg/profiles
1106    o profiles: adding ptracer and ssh
1107    o testreport: change multi-test output-file name
1108      (from output.txt.{name} to output.{name}.txt)
1109    o profiles: now ok for mutli-tiles case
1110    o seaice: add 4 parameters for different advection schemes for area,
1111      (effective) seaice thickness, enthalphy, and snow height. Their default
1112      is the standard parameter SEAICEadvScheme
1113    o calc_gw:
1114     - add cosFacU in zonal viscous flux (harmonic.visc.).
1115     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1116       of tutorial_plume_on_slope.
1117    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1118    o calc_gw: true flux-form, account for horizontal grid spacing.
1119      update rotating_tank results, but not plume_on_slope (affected at
1120      truncation level, 11 digits).
1121    
1122    checkpoint58l_post
1123    o calc_gw:
1124     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1125     - remove side-drag for now (need to fix it); update plume_on_slope results.
1126     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1127    o commit code to make SST/SSS weights spatially variable
1128      (based on either variable in-situ or variable initial T/S weights)
1129    o pkg/ecco:
1130      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1131        now based on horizontally varying weights wthetaLev, wsaltLev
1132      * cost_averagesflags now returns year indices in addition to day, month
1133      * sflux balance is performed on annual basis
1134        (sflxumm, sfluxmm2, bal_sfluxmm)
1135      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1136        including separate counting and multipliers
1137    o pkg/rbcs
1138      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1139    
1140    checkpoint58k_post
1141    o testreport:
1142     - always build in dir. "build" (if not there, mkdir build instead of building
1143       & running in input)
1144     - run in dir run (if it exists), in build otherwise.
1145     - call prepare_run (if input/prepare_run exists)
1146     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1147    o pkg/exf modifications to interpolation and rotation routines for more
1148       reasonable treatment of North Pole singularity: for tracers North Pole
1149       value is set to northernmost zonal-mean value, for zonal velocity it is
1150       set to zero, and for meridional velocity it is set to northernmost value.
1151    o pkg/exf/exf_check_range.F
1152     - add tile index to diagnostics and move stop statement to the very
1153       end of the routine.
1154    o pkg/diagnostics: (diagnostics_main_init.F)
1155      define title of isomorphic variables according to the current config.
1156    o pkg/thsice with pkg/seaice dynamics:
1157    - fix domain of computation (interior only, required for exf) and do exchanges
1158    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1159    o towards a standard way of dealing with multi-threading in MONITOR
1160      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1161    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1162       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1163    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1164    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1165    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1166       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1167    o tracer advection:
1168     - clean-up and simplify calc_common_factors.F
1169     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1170       advection subroutine (but still not used within DST advection S/R)
1171    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1172    
1173    checkpoint58j_post
1174    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1175      from file (collects calls previously in FORWARD_STEP)
1176    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1177    o adjoint store dir. adjusted accordingly
1178    o genmake2
1179      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1180    
1181    checkpoint58i_post
1182    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1183      on wind stress (SEAICEstressFactor defaults to 1.)
1184    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1185      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1186    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1187      on CS-grid: no longer loosing mass.
1188    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1189    o pkg/ggl90: fix sloppy output and fix a bug
1190    o pkg/seaice: added SEAICEuseEVPpickup parameter
1191      - Set to false in order to start EVP solver with
1192        non-EVP pickup files when using SEAICEuseEVP
1193      - fix sign error in diffusion in seaice_calc_rhs
1194    
1195    checkpoint58h_post
1196    * Modifications for bottom topography control
1197      o replace hFacC by _hFacC at various places
1198      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1199      o add non-self-adjoint cg2d_nsa
1200      o update autodiff support routines
1201      o re-initialise hfac after ctrl_depth_ini
1202      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1203    * Adding verification for 5x5 box (4-layer) bottom topography control
1204    
1205    checkpoint58g_post
1206    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1207       used for mean seasonal cycle, mean diurnal cycle); add an example
1208       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1209    o pkg/ggl90:
1210      - add parameter (minimum surface kinetic energy)
1211      - fix bug (avoiding division by zero)
1212    o couple pkg/thsice to pkg/seaice:
1213      - modify advection in seaice to accomodate new scalar fields to be advected
1214      - only muliDimAdection scheme work with seaice/thsice
1215      - mapping of thsice-variables to seaice-variables, back and forth
1216      - does not break the verification experiments, but does not give the
1217        desired results either
1218    o pkg/seaice
1219      - make (default) second order advection a bit less confusing?
1220    
1221    checkpoint58f_post
1222    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1223      to pkg/seaice):
1224      - new routines thsice_map_exf and thsice_get_exf provide the interface
1225      - add an additional formal parameter to thsice_solve4temp
1226    o pkg/exf:
1227      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1228      - correct Stefan-Boltzmann constant
1229      - new parameter for longwave surface emittance
1230      - separate some stuff from exf_bulkformulae into new routines  
1231        exf_radiation, exf_wind
1232      - add new parameters and constants: longwave emissivity for ocean, ice
1233        and snow, evaporation parameters over ice
1234      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1235        either wind from stress or stress from wind
1236    o pkg/thSIce:
1237    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1238    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1239       and THSICE_CALC_THICKN
1240    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1241    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1242      to make debugging easier.
1243    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1244    o pkg/bulk_force:
1245      - clean-up comments and parameters ;
1246      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1247    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1248      generate new output for test-experiment: aim.5l_cs.thSI
1249    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1250      testreport accordingly
1251    
1252    checkpoint58e_post
1253    o SEAICE_CGRID adjoint done
1254    o R_STAR adjoint implemented.
1255      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1256      * need to sort out init. of h0facc, etc.
1257    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1258      to be able to use it in pure forward.
1259    
1260    checkpoint58d_post
1261    o upgrade simple test-experiment to tutorial example:
1262     step.1: duplicate the experiment and (step.2) will remove the old copy.
1263      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1264      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1265      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1266      tutorial_global_oce_biogeo    <- copy of dic_example
1267      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1268      tutorial_plume_on_slope       <- copy of plume_on_slope
1269      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1270      tutorial_global_oce_optim     <- empty for now (David ?)
1271      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1272     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1273    o correct a sign problem in cost_scat.F
1274    o obcs and ptracers: fix boundary conditions for advections schemes
1275      with larger stencil
1276    o thsice adjoint: start
1277    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1278      completeness
1279    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1280      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1281    o ptracers adjoint:
1282      * avoid extensive recomputatations
1283      * fix missing re-init. of gptr (missed by TAF)
1284    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1285      me to turn off the excessive output to STDOUT that this package produces
1286    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1287      and add those terms in Vector-Invariant formulation.
1288    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1289      if the control period (xx_hfluxperiod etc) is 0
1290    o in profiles pkg, clean routines and fix details
1291    o in ecco pkg, reading ssh data:
1292      fix problem in case the model does not start at iter0=0
1293    o fix mnc-pickup/restart for ptracers
1294    o new package prifiles:
1295      code to compute profile-based cost by Gael Forget
1296      (modifs in ecco, ctrl, autodiff)
1297    o Benign bug fix in initialization (spotted by M. Mazloff) of
1298      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1299    
1300    checkpoint58c_post
1301    o adjoint: finish NLFS adjoint and provide reference output in
1302      verification/global_ocean.90x40x15/results_ad_nlfs
1303    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1304      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1305      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1306      with SEAICE_CGRID defined.
1307    o move calendarDumps from "data" to "data.cal" and clean-up the code
1308      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1309    o add useEXF & useCAL flags (for now, set in hard-coded way)
1310    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1311      (were missing in NH mode, and wrong in quasihydrostatic mode).
1312      waiting for Chris updated version of calc_gw to add those CALLs.
1313    o fix bug in quasihydrostatic S/R ;
1314      add a test for this option: global_ocean.90x40x15.qshyd
1315    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1316      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1317    o add on/off flag useOffLine for package OFFLINE
1318    o seaice:
1319      - modify advection so that it works also on the C-grid
1320      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1321        problem in multi-tile runs with C-grid
1322      - add flags for clipping ice velocities and/or masking solver forcing
1323      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1324        C-grid solver
1325      - added a few comments to seaice_diffusion.F
1326      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1327        are now exclusive)
1328      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1329        required re-ordering the code a little:
1330       + make DAIRN global variable (defined in SEAICE)
1331       + move computation of the viscosities eta and zeta into a new separate
1332         routine (because I need to recompute them in seaice_ocean_stress.F)
1333    
1334    checkpoint58b_post
1335    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1336      update output.txt of exp. aim.5l_cs.thSI
1337    o various mnc cleanups and improvements:
1338      + shrink lookup tables by factor of ~4
1339      + better error reporting when running out of lookup space
1340      + able to handle longer path/file names (up to 500 chars)
1341    o adjoint:
1342      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1343      - TBD: "hidden" mom_vecinv recomp. in dynamics
1344    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1345     (allow to differentiate between forcing components using new integer flags:
1346      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1347     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1348    o ecco
1349      - enable trend removal from SSH anomaly obs.
1350    o adjoint
1351      - a fix for PmEpR when #undef EXACT_CONSERV
1352      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1353      - try to fix "hidden" recomp. in forward_step for NLFS
1354        (NLFS seems broken sometimes after I checked it in)
1355    o seaice:
1356     - add c-grid version of the dynamic solver:
1357       + three new routines that are the c-grid substitute lsr, dynsolver
1358         and ostres
1359       + put a few fields that were local to dynsolver into global common
1360         blocks, so that I can move the computation of stresses etc into
1361         seaice_lsr (saves coding but may break the adjoint).
1362     - replace more hardwired parameters by runtime parameters
1363     - add ice masks that mask the rhs of the implicit solvers where there
1364       is no ice (commented out in seaice_dynsolver, because i am not sure
1365       if this works properly), eventually this should replace the clipping
1366       of ice velocities in seaice_dynsolver to +/-40cm/s.
1367    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1368      include it only where its needed
1369    o move balancing of fluxes before the call of external_forcing_surf
1370    o seaice:
1371      - correct units of turning angles (now they are really in degrees)
1372      - move computation of GWATX/Y out of main routine into dynsolver
1373      - initialize GWATX/Y in seaice_init
1374    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1375      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1376    o seaice: add runtime flags for turning angles (default to zero)
1377    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1378      and trend from exf forcing and ctrl control adjustments
1379    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1380      (since checkpoint57x_post)
1381    o change the default rotation period to 86164.s = the Earth rotation
1382    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1383      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1384    o seaice advection: add code for choosing between the default (2nd order
1385      central differences) and multiDim advection schemes provided by
1386      pkg/generic_advdiff
1387    o seaice:
1388      - removed all references to SEAICE_GRID.h fields from
1389        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1390        (cubed-sphere configuration will change a little)
1391      - grid computations in seaice_init are obsolete now.
1392      - cleaned up code a little so that is easier to read (hopefully).
1393      - added new (better?) discretizations of default advection and diffusion
1394        (turn on with SEAICEuseFluxForm)
1395      - replace 1 in 3d global fields by kSurface in growth.F
1396      
1397    checkpoint58a_post
1398    o seaice:
1399      - bug fix in advect.F
1400    o shelfice:
1401      - separate shelfice load anomaly from pload (breaks with time
1402        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1403        Its default is 0., but it may be computed more cleverly from (unknown)
1404        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1405        done offline. A good approximation of the pressure load anomaly is
1406        necessary to avoid large initial adjustment processes underneath
1407        deep-reaching shelfice.
1408      - small fix in ISOMIP shelfice_thermodynamics
1409      - add more sophisticated thermodynamics of Hellmer (1989), this is
1410        now the default
1411      - give a few constants more intuitive names
1412    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1413      if bulk formulae are used in long integration (especially EmPmR). Turn
1414      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1415      if balancePrintMean, the imbalance that is substracted is printed to
1416      STDOUT.
1417    o fix bug (typo) in obcs_apply_eta.F
1418    o add a new package shelfice which enables us to model the circulation
1419      underneath shelf-ice with draughts of hundreds of meters.
1420     - works
1421     - to do: + include improved thermodynamics
1422              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1423                instead of new field kTopC
1424              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1425                instead of new field R_shelfIce and new code in ini_depth.F
1426                and ini_mask_etc.F?
1427              + adjust vertical mixing schemes?
1428    o seaice pkg:
1429     - add a cpp-flag to include a simple formula for a salinity dependent
1430       freezing point of sea water at the surface
1431     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1432       meridional stresses are now different (and hopefully correct)
1433    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1434       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1435       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1436    o pkg/diagnostics: add options and parameters for regional-statistics
1437       diagnostics ; define regions by reading a region-mask from a file
1438       (might add other options later)
1439    o pkg/bulk_force:
1440     - add option and parameters to use AIM surface-flux formulae.
1441     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1442       others forcing fields (defined in PARM05, parameter file "data") are loaded
1443       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1444     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1445     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1446     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1447       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1448     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1449    
1450    checkpoint58
1451    o add "--embed-source" option to genmake2 which, when the supporting
1452      tools can be compiled (as determined by genmake2) will turn on the
1453      embed_files package which then embeds the entire MITgcm source code
1454      (*.[fFhc] + Makefile) used for the build within the executable
1455      - requested by CNH but off by default
1456      - adds a paltry <9MB to the mitgcmuv executable in most cases
1457      - only writes the output when useEMBEDSRC in eedata is true
1458    o clean up 3-dim. relaxation codes:
1459      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1460      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1461      * Thanks to Tom Haine for testing!
1462    
1463    checkpoint57z_post
1464    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1465      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1466    o fix the pickup behavior for obcs in combination with ptracers
1467    o fix a bug in ptracers_external_fields_load
1468    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1469      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1470    o transfered surface NH pressure to eta field (if exactConserv).
1471    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1472         and update lab_sea output.txt file.
1473    o completing 3-dim. relaxation code: additional term
1474         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1475      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1476      * At compile time, in "EXF_OPTIONS.h" set
1477          #define  ALLOW_CLIMTEMP_RELAXATION
1478          #define  ALLOW_CLIMSALT_RELAXATION
1479      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1480          tauThetaClimRelax3Dim = 15552000.0,
1481          tauSaltClimRelax3Dim  = 15552000.0,
1482      * 3 cases:
1483          1) Use a constant-in-time 3-dim. field
1484          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1485          3) Real-time relax. to time-evolving prescribed field
1486    o Adding Laplacian-type smoothness constraint on
1487      initial and boundary (forcing) controls (ic, bc)
1488      * enable at compile-time via
1489        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1490      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1491      * Absolute scale somewhat unclear so far
1492      * no area weighting was included since no other cost term does so far
1493    
1494    checkpoint57y_post
1495    First step for a NLFS adjoint
1496    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1497    o new init. routines for calc_r_star, calc_surf_dr
1498    o still need to deal with ini_masks_etc
1499    o testreport seemed happy
1500    checkpoint57y_pre
1501    
1502    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1503    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1504    o add new offset feature to offline pkg (plus minor cleanup)
1505    o cfc fixes for final year of integration
1506    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1507      be in GCHEM_OPTIONS).
1508    
1509    checkpoint57x_post
1510    o fix testreport Pb in multiple test experiment.
1511    o cleanup our namelist syntax in verification:
1512      - make it more F95 standards compliant (some work still needed)
1513      - allows the vast majority of our tests to work with gfortran
1514    o Non-Hydrostatic:
1515     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1516     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1517    o Allow to apply AB on T,S rather than on AB(gT,gS):
1518     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1519     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1520       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1521     - need a "clever" read_pickup to restart from the other AB formulation
1522    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1523    o remove some unused variables (reduces number of compiler warnings)
1524    o adjoint
1525      * Disable useVariableViscosity for adjoint for time being
1526        (there are a number of extensive recomputations)
1527      * Initialize certain variables needed for adjoint
1528    
1529    checkpoint57w_post
1530    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1531                 fix the singleCpuIO RS version of MDSWRITEFIELD
1532       and add a WARNING if using globalFiles=T with multi-processors.
1533    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1534      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1535    o tracer advection scheme:
1536      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1537       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1538       was not very convenient).
1539      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1540       (further tests needed for the implicit DST & Flux-Limiter schemes).
1541    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1542      and sRef for convenience, handy, when you want to initialize
1543      ptracers in a large domain with a constant non-zero value. Also,
1544      untangle ptracers_init.F a little.
1545    
1546    checkpoint57v_post
1547    o change dome exp. to use variable viscosity in side-drag terms.
1548    o remove all the files from the cfc_offline test since they are now
1549      incorporated into tutorial_cfc_offline which has been producing
1550      identical results for a few days of testing
1551    o add new parameter: sideDragFactor to enable half-slip-side BC
1552      and change side-drag S/R to use viscosity from mom_calc_visc
1553      (can switch back by setting sideDragFactor=0.); affects results at
1554      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1555       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1556    o vorticity & strain are now computed without masking, to account for
1557      no-slip-side BC in variable viscosity calculation ; mask is applied
1558      anyway later on, before computing advection/coriolis terms.
1559    o modify exp4 to test new obcs support for reading from external files
1560      and for passive tracers
1561    o fix behavior of ptracers_monitor when monitor output is written to a
1562      netcdf-file; still not independent of monitor.F (writes in the same
1563      file).
1564    o change default value of tRef (put a uniform, meaningful value for ocean
1565      & atmos) and initialize sRef (was missing, as Martin mentioned).
1566    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1567      to be proportional to enstrophy dissipation length.  Thus,
1568       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1569      This is now consistent with Smagorinsky and with the manual.
1570    
1571    checkpoint57u_post
1572    o OBCS and PTRACERS: add open boundary support for passive tracers
1573      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1574        OB-values from file; this is not different from the way theta and salinity
1575        are treated
1576      - however, Orlanski-radiation conditions are not supported, and the model
1577        will stop if you use pTracers and Orlanski at the same time.
1578      - beefed up the rountine obcs_external_fields_load: now only those open
1579        boundary values are overwritten with values from files for which there
1580        are really files, otherwise the OB-fields remain untouched. This makes
1581        it possible to use different OBs at different ends of the domain (as
1582        with EXF)
1583    o reduce number of exch calls in shap_filt (s2).
1584    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1585      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1586    
1587    checkpoint57t_post
1588    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1589    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1590      same truncation, independent of the face number: affects affects several
1591      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1592    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1593      note that biharmonic viscosity + no-slip was not tested in any experiment.
1594    o fix bug in non-linear free-surf side-drag ; generate new output for
1595      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1596    o make mnc honor the writeBinaryPrec flag for most kinds of output
1597    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1598    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1599      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1600    o add brackets in multi-terms sum to get same truncation, independent of
1601      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1602      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1603    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1604      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1605      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1606      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1607      Suggested values of viscosity parameters found in mom_calc_visc.
1608      Many new viscosity diagnostics available.
1609    
1610    checkpoint57s_post
1611    o Add clearing-house for viscosity calculations, mom_calc_visc and
1612      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1613      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1614      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1615      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1616      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1617      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1618      ViscAhStrain and viscAhTension are now retired.
1619    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1620    o In response to JMC's bug report, genmake2 now ignores any soft-links
1621      that it finds in the *current* directory when searching for files.
1622      Soft-links found in any other source directories will still work as
1623      they did before.
1624    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1625      a C routine to unlimit the stack size
1626    o mnc-ify pkg/aim snapshot vars
1627    o mnc-ify pkg/land as requested by Daniel
1628    o various changes to mnc including:
1629      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1630      - output can now be grouped so that all files within a group
1631          change the ITER portion of their names in lock-step together
1632      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1633          and works with both EXCH1 and EXCH2 (but needs more testing)
1634      - writing works for all verification test cases w/ g77 on Linux
1635    
1636    checkpoint57r_post
1637    o make MNC variable initialization happen earlier
1638    o add diagnostics for (almost) each term of the momentum Eq.
1639    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1640    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1641    o remove MINIMAL_TAVE_OUTPUT option ;
1642      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1643    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1644      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1645    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1646    o add time-dependent SST, SSS control
1647    o cost terms in ecco/ modularized (new cost_generic.F)
1648    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1649    o new infrastructure for seaice model vs. obs misfits in seaice/
1650      * driver from the_main_loop.F is seaice_cost_driver.F
1651      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1652      * gradient check in Exp. 6a of natl_box_adjoint/
1653    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1654      (see README file)
1655    
1656    checkpoint57q_post
1657    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1658    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1659      - bug was reported by Jean-Michel and Ian Fenty
1660    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1661      update exp. cpl_aim+ocn output.
1662    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1663      Needed for high-res. runs with large global files
1664      to be able to limit tapelev size
1665    o Changed some tests for adjoint:
1666      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1667      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1668      * global_ocean.90x40x15/ back to default 3-level checkpointing
1669    o Modifications to enable scripted COMMON to MODULE conversion
1670      * verification/OpenAD/code/ has necessary scripts and description;
1671      * converts, compiles and runs successfully;
1672    
1673    checkpoint57p_post
1674    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1675    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1676      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1677    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1678    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1679      (was already the case for dissipation with mom_vecinv,
1680       and also the case for grad.PhiHyd when staggered-timeStep)
1681      This will allow to put dissipation out-off the AB time-stepping.
1682     Unfortunately, affects truncation error. Update output of exp. that "fails"
1683      (cg2d matching number) and leave the others for later: front_relax(10),
1684      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1685      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1686    
1687    checkpoint57o_post
1688    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1689      (2) its ready to be documented during the 20050801 DocFest
1690    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1691      for ideal_2D_oce and lab_sea on linux_ia32_g77
1692    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1693      in global1x1_tot/code_seaice_adj to access indices 32, 33
1694      (worth another tag)
1695    
1696    checkpoint57n_post
1697    o adding precip control xx_precip 32
1698    o adding swflux control xx_swflux 33
1699    o Replacing 10 forcing penalty cost routines by 1 generic.
1700    o Implementing partitioning in time-mean and variable adjustment
1701      for atmos. state.
1702    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1703    o in natl_box_adjoint:
1704      * updated exp 1 to 10
1705        (but does not have time-mean vs. variable split results yet)
1706    o updated global1x1/*_seaice_adj/
1707      to incorporate latest changes
1708    o enable useSingleCpuIO for mdsio vector routines
1709      (applies in particular to tapelev I/O)
1710    o removed inefficient K-loop in all active_file*control*.F
1711    
1712    checkpoint57m_post
1713    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1714      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1715    o pkg/exch2: filling of face-corner halo regions is optional
1716      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1717    
1718    checkpoint57l_post
1719     tag before updating tutorials (pre-release-2)
1720    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1721       for output and interpolation of input fields onto model grid)
1722    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1723       Affects results of exp. rotating_tank ; update output.txt.
1724    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1725          and taking the square quantity and/or using a fraction-weight field.
1726    o fix aim_diagnostics_init.F mate numbers.
1727    o add mnc output capability to diagnostics/diagstat and update
1728      our cvsignore files for the ACSII output generated
1729    
1730    checkpoint57k_post
1731    o lab_sea now uses diagnostics package and provides a suite of
1732      new EXF diagnostics output.
1733    
1734    checkpoint57j_post
1735    o exf
1736      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1737        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1738        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1739      * extended diagnostics output
1740        - now includes all EXF variables
1741        - hs, hl moved to common block
1742        - separate S/R for diagnostics, called after ctrl vector is added
1743        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1744        - EXFqnet contains true Qnet (i.e. includes qsw)
1745      * updated verif. lab_sea, global_with_exf
1746      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1747        to ensure that diagnostics sees a true EXFqnet
1748    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1749    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1750      several times with different frequencies.
1751    o mnc-ify the thsice package as requested by Daniel Enderton
1752      - the monitor--MNC output needs work
1753      - many attributes need to be added (most are currently blank)
1754    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1755      - many attributes need to be added (most are currently blank)
1756    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1757    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1758    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1759      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1760         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1761    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1762     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1763    
1764    checkpoint57i_post
1765    o Diagnostics package was changed: diagnostic allocation is now deactivated
1766      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1767    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1768      add 1rst Order upwind vertical Shear.
1769    o add a quick fix for A/B checkpointing in OFFLINE mode
1770    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1771      end-run around the C/Fortran linking horror in eesup/src/timers.F
1772    o added pkg/runclock: allows user to terminate run based on wall clock
1773    o added non-hydrostatic scaling parameter: nh_am2
1774    o pkg/my82: futile attempt to make results compiler-independent by adding
1775      some "_d 0", etc. no effect.
1776    o for mnc output, fill the 'T' coordinate var with myTime and create a
1777      separate 'iter' variable for iteration count
1778    o pkg/diagnostics:
1779      add new capability: output of Global/Regional & per-level statistics ;
1780      tested against monitor output (including land & thSIce) on various exp.
1781    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1782    
1783    checkpoint57h_done
1784      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1785      data.diagnostics, data.gchem, data.ptracers) is done.
1786    
1787    o pkg/diagnostics: prepare for Global/Regional statistics.
1788      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1789    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1790      and rename it: DIFFERENT_MULTIPLE
1791    
1792    checkpoint57h_post
1793    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1794    o pkg/diagnostics: change output frequency, now in seconds (instead
1795      of Nb of iterations). This requires to change data.diagnostics.
1796    checkpoint57h_pre
1797    
1798    o in mnc, let the user create the output dir if both mnc_outdir_date
1799      and mnc_outdir_num are false
1800    o add fflags() to pkg/diagnostics which allows one to specify, on a
1801      per-file basis, the file precision [default behavior is unchanged]
1802    o added diagnostics to pkg/kpp, including computation of mixed layer
1803      depth based on a temperature/density criterion
1804    o updated verification/natl_box to test the new pkg/kpp diagnostics
1805    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1806    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1807    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1808      not mnc -- this mistake was found by JMC and is now corrected
1809    
1810    checkpoint57g_post
1811    o add Adams-Bashforth 3rd Order time stepping:
1812      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1813      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1814    checkpoint57g_pre
1815    
1816    o make lambda[Theta,Salt]ClimRelax spatially varying
1817      (default remains spatially uniform constant based on tau)
1818    o added new control variables
1819      * init. uVel, vVel, etanN
1820      * lambda[Theta,Salt]ClimRelax
1821    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1822      (suggested by G. Forget)
1823    
1824    checkpoint57f_post
1825    o add parameter "baseTime" = model base time = time at iteration zero
1826      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1827      account for baseTime shift
1828    o move Coriolis arrays from PARAMS.h to GRID.h
1829    checkpoint57f_pre
1830    
1831    o mnc-ifying the seaice package
1832    o introduced an alternative length scale calculation for use in the limiting
1833      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1834    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1835    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1836      as well as grad(vort3).  Made it compatible with both approximate form
1837      for the cubed sphere and full form of these gradients.  Added flag
1838      useFullLeith to select between approximate and full form.  
1839    o add "d0" in getcon.F to reduce differences between compilers/platforms
1840      update output.txt of exp. fizhi-gridalt-hs
1841    o change port_rand funtion to allow to set the seed.
1842    o fix obscure MNC bug involving conversion between reals and integers
1843      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1844        new version is now more standards-compliant
1845    o adjoint-related modifications
1846      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1847      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1848      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1849    
1850    checkpoint57e_post
1851    o Adding eddy stress controls a la Ferreira et al.
1852    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1853    
1854    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1855      update output.txt of exp. fizhi-gridalt-hs
1856    o add more "Z" dimensions and associated coordinate vars to MNC
1857    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1858    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1859      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1860      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1861      months and years.  Requires pkg/cal.
1862    o diagnostics: add pickup functionality
1863      - off by default for backwards compatibility
1864      - current version only uses MDSIO -- MNC will be added
1865    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1866    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1867    
1868    checkpoint57d_post
1869    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1870    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1871      output from the diagnostics package
1872    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1873    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1874      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1875    o add coordinate variables to the MNC output from the diagnostics package
1876    o change MNC-flags default value: true when useMNC=TRUE
1877    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1878      the ability (off by default) to read the grid information using MNC
1879    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1880    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1881    o do snap-shot diagnostics at the middle of the time-interval (instead of
1882      at the end).
1883    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1884      new test for AIM with thSIce + slab-ocean
1885    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1886    o move state variable diagnostics to the beginning of the time step ;
1887      (note: still needs some work specially for snap-shot diagnostics)
1888      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1889    
1890    checkpoint57c_post
1891    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1892    o generate new output.txt files on faulks with g77 & the new -ieee option
1893    checkpoint57c_pre
1894    
1895    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1896      update output.txt of exp. global_ocean.90x40x15
1897    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1898      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1899    o add saltFlux(+File) forcing capability with periodicExternalForcing
1900    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1901    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1902    o improvements for the MNC output from DIAGNOSTICS:
1903      - correct handling of the unlimitied dimension
1904      - all dims now have associated coordinate variables
1905      - variables located at U, V, and Corner ("Z") points are now written
1906        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1907        *all* data points are output
1908    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1909    o added pkg/seaice/seaice_monitor.F
1910    o mdsio_readfield.F can now read files visible only to master MPI process.
1911    o pkg/seaice: some test code for ice-modified ocean stress
1912    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1913      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1914      spurious negative numbers for precipitation and humidity.  Will cause
1915      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1916    o pkg/ctrl/
1917      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1918        May be enabled via doPackDiag
1919      *  introduce z-scaling of
1920         + gradient (doZscalePack) and
1921         + control (doZscaleUnpack)
1922    o pkg/mdsio/
1923      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1924      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1925    
1926    checkpoint57b_post
1927    o simplify options in diagnostics_fill arguments (remove weird combinations)
1928    o fix MNC coordinate variables so that they now contain per-face index
1929      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1930      general, EXCH2 grids are only aligned to a "local" coordinate system
1931    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1932    o Implement instantaneous output within pkg diagnostics:
1933      setting a negative frequency in data.diagnostics produces
1934     "snap-shot" output (as opposed to time-average if freq > 0)
1935    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1936      NOTE: change ptracer diagnostics name: use 2 characters to work with
1937            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1938    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1939      becomes the coordinate variable for the 'T' dimension
1940    o add CF-style coordinate variables to MNC
1941      - just a first cut:  numbers are meaningless on the cubesphere and
1942        missing along the T axis but otherwise it works!
1943    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1944    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1945    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1946      this is based directly on what the model compute, so that the content of
1947      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1948    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1949    o clean up build options files for SunOS, in particular
1950      - remove -traditional from xmakedepend
1951      - change -xarch=v9 to -xarch=native for f77
1952      - restore use of make (not gmake)
1953      - add CC=gcc if using g77
1954    o changes per discussion of AM, JMC, & EH3 today:
1955      - move redundant "grid" variables out of "state" -- in preparation of
1956        creating proper CF-style coordinate variables and in recognition
1957        that any/all grid variables can be easily copied (eg. w/NCO) from
1958        the grid files into any of the other NetCDF files
1959      - *always* output grid variables with MDSIO (this will eventually be
1960        changed)
1961      - output MNC grid file if useMNC is true
1962    o every instance of _END_MASTER() has been found and replaced with
1963      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1964      preprocessors
1965    o re-arrange diagnostics pkg initialisation:
1966     - allow each package to extend the available diagnostics list
1967     - add some checking and fix small problems (multi-threaded, ...)
1968     - new S/R diagnostics_fill (replace fill_diagnostics):
1969       look through the short list of active diag. (instead of the long list)
1970       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1971    
1972    checkpoint57a_post
1973    o this set of changes restores TAMC compatibility
1974      tested for global_ocean.90x40x15 adjoint on trough
1975      (what a pain)
1976    
1977    checkpoint57a_pre
1978    o some modifs in tools/build_options for sunos
1979    o call ctrl_pack for ctrl at end for optimcycle=0
1980    
1981    checkpoint57
1982    o add horizontal bi-harmonic viscosity for vertical velocity
1983      - new parameter viscA4W (defaults to viscA4)
1984      - affects only non-hydrostatic code
1985      - to be done: no-slip lateral boundary conditions
1986    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1987    o implement Implicit Vertical advection for pTracers
1988    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1989      (implemented also for implicit vertical diffusion & advection)
1990    o OBCS: extend application of tracer open boundary conditions
1991      to a strip beyond the boundary of width Olx/Oly
1992    o add call monitor to TAF set of required calls (flow directives)
1993      and include in natl_box_adjoint
1994    o untangle a few ifdefs related to cost, ctrl, autodiff
1995      untangel a few ALLOW_ECCO_OPTIMIZATION
1996    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1997      (theta2, salt2 in ecco_cost_weights)
1998    
1999    checkpoint56c_post
2000    o OBCS as control variables
2001      - update ctrl_ad_diff.list, obcs_ad_diff.list
2002      - remove balance of obcs controls from default
2003      - fix index bug nobcs in ctrl_init
2004      - fix dummy fields filen in ctrl_pack
2005      - add dummy weights for obcs
2006    o lsopt: comment out fort.94 output
2007    o optim:
2008      - remove unnecessary header files
2009      - adjusted namelists
2010      - add xerbla.F to Makefile
2011    o exf:
2012      - multiple modifications of exf_check_range
2013      - unit change in exf_init_runoff from [m/year] to [m/s]
2014    o mdsio:
2015      - i/o-vector change debugLevel from debLevA to debLevB
2016    
2017    checkpoint56b_post
2018    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2019      is called from DO_THE_MODEL_IO
2020      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2021      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2022      - clean up PTRACERS_WRITE_TIMEAVE a little
2023    o add another verification experiment that tests both the cfc-pkg and
2024      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2025      reactive tendencies treated inline with regular timestepping
2026    o testreport previously did a lousy job of comparing small numbers, so
2027      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2028      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2029      testreport.
2030    o ptracers_monitor: bug fix for MPI
2031    
2032    checkpoint56a_post
2033    o GCHEM: finish reorganizating the package
2034      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2035        (introduces another 3D-array for each passive tracer, but only if
2036        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2037        gchemTendency is not needed because the timestep is done separately)
2038      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2039      - GCHEM is now---more or less cleanly---separate from PTRACERS
2040      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2041        so clear to me how that should be done in a general way.
2042    o CFC: improve formatting of output in CFC_ATMOS
2043    o PTRACERS:
2044      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2045        that ALL experiments with ptracers enable can be checked. This makes
2046        GCHEM_MONITOR obsolete.
2047      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2048        monitorFreq
2049      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2050    o add PTRACERS (PTR0[1-5]) to testreport output
2051    o exf_check_range:
2052      * default changed to .TRUE.
2053      * will check values for niter0 if debLevA, every timestep if debLevB
2054      * STOP in exf_check_range if 'out of range'
2055      * range chosen generous to allow for potential extema
2056      TBD: a version with stricter range
2057           permitted range would be runtime parameters
2058  o GMredi:  o GMredi:
2059    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2060    - 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 2063  o GCHEM:
2063    - 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
2064      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2065    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
2066      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2067        this flag is now only visible within GCHEM-pkg routines.
2068      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2069        be replaced by a 3D array that is computed before thermodynamics; for
2070        this, the tracer ID iTracer had to be included into the parameter list
2071        of ptracers_forcing
2072      - set up forward_step to call gchem_forcing, that will replace
2073        gchem_forcing_int in ptracers_forcing
2074      - cleaning up
2075  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
2076    
2077  checkpoint56  checkpoint56

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