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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.1050 by dfer, Mon Jan 5 16:40:50 2009 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
8      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
9      with ocean biogeo)
10    o pkg/flt:
11     - do some cleaning and fix the restart ;
12     - add output.txt in flt_example/results to get this pkg tested.
13    o genmake2: add an EXTENDED_SRC option and flag.
14       for now, cannot be turned on on command line (only through genmake_local)
15    o pkg/mdsio: read/write vector:
16     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
17     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
18       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
19     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
20      (drop to 4 digits matching for grad). But this test does not look very
21      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
22    
23    checkpoint61g
24    o pkg/flt:
25      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
26       + make OPTIONS file more standard.
27      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
28      - fix _BYTESWAPIO CPP-Flag
29      - standard reading of file-parameter "data.flt"
30      - fix argument list of S/R FLT_RESTART
31      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
32    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
33    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
34      a still unfixed compiler/optimization bug
35    
36    checkpoint61f
37    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
38      update results of global_ocean.cs32x15.icedyn test.
39    o move getcon.F from model/src to pkg/fizhi.
40    o pkg/exf: add parameter for extrapolation of temp up to the surface
41       and option to prevent negative evap (in bulk_largeyeager04 only).
42    o Prather Advection scheme: fix tracer conservation for divergent flow
43      (e.g., when using NonLin Free-Surface).
44    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
45    o gmredi (Visbeck-variable-K):
46     - add more parameters to Visbeck-variable-K.
47     - use a 5 points average for dSigmaR in Visbeck-K calculation
48       (more "homogenous": same stencil and same weights as in dSigmaH)
49     - update output of ideal_2D_oce experiment.
50    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
51      (#undef REAL4_IS_SLOW)
52     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
53       coordinate variable
54     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
55       (surface forcing fields), removes some of the functionality
56     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
57     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
58       probably not all: copy _RS surface flux fields to RL field before
59       calling DIAGNOSTICS_FILL
60     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
61       real*4 (CALL EXCH_*_RS) versions.
62     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
63       (generate new output).
64    
65    checkpoint61e
66    o gmredi (Visbeck-variable-K):
67      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
68      - change computation of Visbeck-K where Slope > Smax :        
69        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
70        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
71    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
72      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
73    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
74    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
75      does not become too large (to avoid precision problems in implicit-diffusion
76      solver); update ideal_2D_oce output.
77    o pkg ggl90:
78      - in ggl90_cal.F: compute only one set of visc/diff, used to
79        step forward TKE/T/S/momentum
80      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
81        have Prandlt =1)
82    o gmredi (fm07):
83      - add lower limit on Transition layer thickness + lower limit on 1/lambda
84      - allow to set few more params from data.gmredi
85    o pkg ggl90:
86          - add missing sqrt(2) factor in computation of mixing length
87            scale in ggl90_calc.F
88            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
89    
90    checkpoint61d
91    o adjoint modifs
92      - adapt to new field rhoInSitu
93      - allow to revert from StoreDynVars2D, StoreDynVars3D
94        to individual fields
95        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
96    o store 3-D (in-situ) density in commom block (DYNVARS.h)
97     - save 1 rho computation.
98     - no longer modify T & S inland when using down_slope pkg.
99    o gad_som : allow to switch to SOM advection for T & S without corresponding
100      pickup files (using new S/R: MDS_CHECK4FILE).
101    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
102      (for useSingleCpuIO to work in multi-threaded)
103    o pkg/shelfice:
104     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
105       with SHELFICEtopoFile in data.shelfice
106     - move code for reading ice shelf topography and modifying hFacC into separate
107       subroutines of the shelfice package
108     - separate initialisation of "fixed" and "variable" variables
109     - kTopC is not (yet) replaced by kSurfC, although this is possible
110    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
111    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
112      and rename:
113      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
114      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
115    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
116    
117    checkpoint61c
118    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
119      to add mass source/sink of fluid in the interior (3-D generalisation
120      of oceanic real-fresh water flux).
121    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
122    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
123    o new pkg: down_slope
124      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
125      - presently, modify T & S inland (dwnslp_calc_rho.F).
126        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
127      - implementation for ocean in P-coords not tested.
128      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
129    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
130      (to facilitate conversion of oceanic pkg to p-coordinate).
131    o change FIND_RHO to FIND_RHO_2D :
132      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
133    o new pkg: cheapaml
134    
135    checkpoint61b
136    o exch2:
137      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
138      - no longer depend on the order sequence (N,S,E,W).
139      - 3rd exchange no longer needed (tested with 24 tiles).
140      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
141      - exch_UV_A-grid readily available (but not yet tested).
142      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
143      (both are no longer needed) in exch_uv: no effect in forward run; but
144       get truncation error differences with adjoint exch.
145    o exch2:
146     - change index-bounds storage (moved from target to local tile,
147       more intuitive this way) ; rename/remove some variables.
148     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
149    
150    checkpoint61a
151    o exch2/matlab-topology-generator:
152      fix bug in index bounds for N-S internal exchange (hard to tell if this
153      had any effect on the solution).
154    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
155      is exceeded
156    o testreport: modify syntax of awk, so that it works also with
157      awk, and not only with nawk and gawk
158    
159    checkpoint61
160    o autodiff
161      Change default for TAF usage by removing argument '-nonew_arg'
162      This changes TAF subroutine argument list (ordering of active var.)
163      Omission of this flag leads to incompatibility w.r.t. TAMC
164      To restore TAMC-compatibility, need following modifs:
165      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
166      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
167      Tested TAF version is 1.9.22
168      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
169    
170    checkpoint60
171    --->>> This is the last checkpoint for which generating the adjoint
172    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
173    --->>> by default.
174    --->>> Future checkpoints will ommit this flag by default.
175    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
176    o pkg/grdchk: Add gradient check to etan0 perturbations.
177    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
178    o pkg/autodiff: more flexibility in zeroadj.
179      model/src: modifying do_oceanic_phys.F accordingly.
180    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
181    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
182      special setup of gmredi for which the adjoint is stable
183      enough for parameter optimization.
184    o bridging the gap between eddy stress and GM.
185      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
186          along with a change in CPP option (now ALLOW_EDDYPSI).
187      -> when using GM w/ GM_AdvForm:
188          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
189          is applied either in the tracer Eq. or in momentum Eq.
190          depending on data.gmredi (intro. GM_InMomAsStress).
191      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
192      The key modifications are in model/src/taueddy_external_forcing.F
193      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
194    
195    checkpoint59r
196    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
197      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
198      fix option to read coriolis(@ cell-corner) from files with CS-grid.
199    o pkg/mnc: add some attributes to standard 1D-coordinate variables
200    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
201      mass points, when using mnc for output
202      - add runtime parameter (missing_value, missing_value_int) to override
203        default (which is the value of getcon('UNDEF'))
204    o pkg/mnc: prepare mnc for the actual use of missing values with the
205      diagnostics package: small fix in mnc_cw_readwrite.template and more
206      initialisation of never used fields
207      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
208      versions
209    o pkg/thsice/thsice_ini_vars.F added default initial values so that
210      thermodynamics sea ice solver does not blow up when some initial fields
211      are missing.
212    o move from external_forcing_surf.F to ini_forcing.F
213      the p-coord. hack consisting in using pLoad to set phi0surf ;
214      update output of tutorial_global_oce_in_p (affected @ truncation level).
215    o Freshen up a bit hs94.1x64x5, notably:
216      remove rotationPeriod and tRef=5*0. (adjoint only), and add
217      exactConserv=.TRUE.
218    o pkg/generic_advdiff:
219      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
220      applies to files where Temperature & Salinity 2nd Order moments are used.
221    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
222      this uses a dynamically allocated internal state data structure
223      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
224      and requires a fortran 90 compiler
225    
226    checkpoint59q
227    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
228       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
229    o Refresh tutorial_global_oce_biogeo, notably:
230      - change bathymetry (put back seamounts in ACC, use hFacs)
231      - change EOS (POLY3 --> JMD95Z)
232      - use Bryan-Lewis vertical diffusivity
233      - use multidimensional advection
234      - remove old virtual virtual in dic pkg, now done through ptracer pkg
235      - change a couple of parameters in dic pkg
236    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
237    o pkg/obcs: change default to OBCSfixTopo = .true.,
238      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
239      - replace "debugMode" with "debugLevel .GE. debLevB"
240    o implementation of TAF directives for gchem,cfc,dic
241    o remove "exp5" (replaced by tutorial_deep_convection).
242    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
243      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
244      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
245      --> changes results in exp4, seaice_obcs
246    o tutorial_deep_convection :
247      update the set-up and increase resolution and domain size ; start
248      from pseudo initial conditions = output at t=120mn in order to see
249      something happening when running testreport.
250    o pkg/seaice: add os7mp as an advection scheme
251                  add check for advection schemes
252                  add a flag for restoring T and S underneath sea ice
253    o pkg/my82: add netcdf-support and diagnostics
254    o thsice pkg:
255      - Now hsMax limits snow height by turning it into ice following
256        flooding scheme (and now conserving energy)
257      - Slight rewriting of the formula in thsice_calc_thick.F
258      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
259      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
260    
261    checkpoint59p
262    o gchem / dic / cfc :
263      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
264      - add new parameter files: "data.dic" & "data.cfc" ;
265      - various re-arrangement in initialisation & header file ;
266      - fix tutorial_global_oce_biogeo for multi-threaded test.
267    o pkg/dic: test for "pickup_dic" file when restarting ;
268      if no pickup-file, can restart with a re-initialised pH (same as it did
269      before) providing pickupStrictlyMatch is set to False.
270    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
271      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
272    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
273      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
274    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
275     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
276       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
277    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
278       scheme to use for vorticty-term ;
279     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
280       (with default selectVortScheme, return to original discretisation)
281     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
282    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
283    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
284      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
285      also fix diagnostics VISCAHW & VISCA4W.
286    
287    checkpoint59o
288    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
289    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
290      move a few statemens out the main loop into separate loops
291    o pkg/shelfice:
292      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
293        (kg/m^2/s), does not break tests, because in verification/isomip,
294        rhoConstFresh=rhoConst (by accident)
295      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
296      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
297        new file model/src/seawater.F, so that they are available for all pkgs.
298      - convert potential temperature into in-situ temperature. This changes the
299        isomip tests => update tests
300    o add a flag writePickupAtEnd (default=true) to be able to suppress
301      writing a pickup at the last timestep
302    o tools/mpack-1.6 :
303      - disable automake (not working) and autoconf (not needed).
304      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
305        also cleaner with much less compilation warnings.
306    o pkg/profiles:
307      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
308      (for "less than 32 characters name" compiler requirement)
309    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
310      conditions that have a different sampling frequency than S/T/U/V obcs
311    o pkg/diagnostics (stats-diags):
312      - fix global Min/Max in case 1 processor get only empty tiles
313    o genmake2: replace (4 times)
314         make genmake_tc_1.o >> genmake_warnings 2>&1
315      with
316         COMM="$CC $CFLAGS -c genmake_tc_1.c"
317         echo $COMM >> genmake_warnings
318         $COMM >> genmake_warnings 2>&1
319      to make genmake2 always see the value of CC as specified in the optfile.
320    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
321      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
322      - modify verification advect_cs test to test SOM-advection on CS-grid.
323    o pkg/ctrl:
324      - Rewrite of ctrl_map_ini_ecco.F,
325        introducing a generic routine (ctrl_map_ini_gen.F).
326      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
327    
328    checkpoint59n
329    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
330      number in dedicate array "hdiag":
331      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
332        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
333      - many small changes (integer format) for large number of diagnostics
334      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
335        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
336    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
337      usingSphericalGrid, this allows to define the rotated grid coordinates
338      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
339      geographical coordinates according to the inverse of the rotation defined
340      by the Euler angles, so that Coriolis parameter and online-interpolation by
341      exf works with the geographical coordinates on XC/YC/XG/YG.
342      Naturally, this feature does not work with all packages, so some
343      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
344      profiles), because there the coordinates are assumed to be regular
345      spherical grid coordinates.
346    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
347      - introduce isopycnal diffusion coefficient control.
348    o tools/adjoint_options:
349      - additional control vector components.
350    o pkg/mnc: have mnc create marginally meaning full coordinate variables
351      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
352    o pkg/mypackage:
353      - add example of read/write pickup for state-var ;
354      - add entry points to the main code for state-vars diags & write-pickup.
355    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
356      transitions for useExfYearlyFields
357      - add new subroutine that determines the file to read from for
358        use*YearlyFields = .TRUE. and .FALSE.
359      - add a verification experiment to global_with_exf that tests
360        useExfYearlyFields with USE_EXF_INTERPOLATION defined
361    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
362      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
363      subroutines (which could be generated from a template, because they are
364      almost identical), for now they are included in obcs_prescribe_read.F for
365      simplicity
366    o pkg/exf:
367      - add a little more diagnostic to exf_interp_read (in analogy to
368        mds_read_field, can be turned off with debugLevel < debugLevA=1)
369      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
370        ugly but fast by unrolling short inner loops, inserting a unroll=8
371        directive in routine lagran, and splitting a loop and making do while the
372        outermost loop (the latter requires the intoduction of index arrays)
373    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
374    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
375      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
376    o verification/seaice_obcs: updated for restart test and latest options
377    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
378      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
379      for now this is only available for the C-grid code and also within
380      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
381    
382    checkpoint59m
383    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
384      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
385    o gad_som : fix flux output (& diagnostics) to have same units as other  
386      advection scheme fluxes (was previously multiplied by deltaT).  
387    o added verification/seaice_obcs both to test seaice open boundaries
388      and to provide an example matlab scrpt for generating them
389    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
390    o pkg/salt_plume: clean up salt_plume_frac.F to
391      remove redundancy in PlumeMethod 1 and 4
392    o pkg/kpp: added saltplume diagnostics
393    o pkg/obcs and pkg/seaice:
394      - do not set uice and vice to zero when OB*icefile are unspecified
395      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
396      - moved seaice tracer obcs after call to seaice_growth
397    o pkg/salt_plume: added various options for salt plume depth
398      criterion and for vertical distribution of the salt
399    
400    checkpoint59l
401    o pkg/ptracers: new version of ptracers pickup:
402      read meta file and write only fields which are needed to restart.
403      ( same logic as main pickup file ; also using pickupStrictlyMatch )
404    o pkg/seaice:
405      - add timescale for melting due to warm mixed layer as a means of
406        setting SEAICE_availHeatFrac more conveniently
407      - add a CPP-flag/runtime parameter check for flooding algorithm
408      - reformulated availHeat in seaice_growth.F to be independent of AREA
409    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
410      unit changes
411    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
412    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
413      SX vector computer.
414    o pkg/seaice:
415      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
416        seaice forcing fields can now be read only through pkg/exf
417      - removed some unused halos
418    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
419    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
420      or U/VICE from U/VWIND before computing U/VSTRESS
421    
422    checkpoint59k
423    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
424      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
425    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
426      all experiments pass when compile with un-initialised var. checking option.
427    o added pkg/salt_plume
428    o script to test restart (for now, in MITgcm_contrib/jmc_script)
429    o pkg/seaice: new read/write pickup version.
430      read meta file and write only fields which are needed to restart.
431      ( same logic as main pickup file ; also using pickupStrictlyMatch )
432    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
433    o lab_sea.hb87: modify the domain & update output.hb87.txt :
434      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
435      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
436      process. Fixed here by closing the domain at the Northern boundary.
437    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
438    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
439      a set of consecutive levels in/from a 3-D array.
440    o pkg/ptracers:
441      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
442      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
443    
444    checkpoint59j
445    o in pkgs: dic, obcs, offline, rbcs:
446      standard way to compute coeff. for time interpolation between 2 time reccords
447      which retains full precision (& make results less dependent on compiler).
448      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
449    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
450      packages instead of reading ice cover and wind speed separately
451    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
452     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
453      to allow to compile customized code before the update)
454    o cleaning-up:
455      - fix CPP instruction syntax in pkg/obcs
456      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
457        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
458      - fix some threads issue in IO parts.
459    o pkg/dic:
460      - add tons of "_d 0" (--> much better testreports !)
461       and then update outputs of tutorial_global_oce_biogeo
462    o pkg/mom_fluxform:
463      add a special version of momentum advection intended to conserve momentum
464      next to a bathymetry step or a coastline edge. (default = off = #undef)
465    o new read/write pickup version:
466      - for now, only implemented for main (mdsio) pickup file.
467      - write out only what is needed to restart; merge pickup_nh , pickup_ph
468        and main pickup together.
469      - read meta file; read only what is needed to restart; stop if a field
470        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
471        if it make sense (even if the restart is not perfect).
472      - if no meta file, assume that pickup to read corresponds exactly to
473        a pickup that would currently be written.
474      - read pickup written in the old format (until checkpoint59i) if it
475        recognizes an old meta file (no field-list).
476      - add a meta file in exp. which starts from a pickup: 2 cases:
477        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
478         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
479        b) a meta file describing the content of the associated pickup file
480         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
481    o pkg/mdsio & pkg/rw:
482      - new routine to read a meta file ; new set of routine to read
483        Multiple-fields file (with meta file).
484    o added open boundary conditions capability for seaice
485        HSNOW, HSALT, UICE, and VICE
486    
487    checkpoint59i
488    o adjoint:
489      * fix multiDimAdvection adjoint
490        (partial recomputation problem by TAF for fVerT(:,:,kDown)
491        and comlev1 size definition (maxpass vs. max. number of tracers)
492      * verification/global_ocean.90x45x15 adjoint now tests
493        NLFS and multiDimAdvection using DST3 (=30)
494      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
495    o pkg/kpp: add "_d 0" to real constant (if missing);
496      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
497      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
498    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
499      for internal parameters related to restart process (formerly from PARAMS.h)
500      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
501    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
502      as argument. (only atm2d & obcs write_pickup have not yet been updated)
503    o pkg/monitor:
504      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
505      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
506      - account for deep Atmosphere factor and density factor (anelastic)
507    o added open boundary conditions capability for seaice HEFF and AREA
508    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
509      thermodynamics
510      - requires a little reorganization, which affects the testreport results
511        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
512        so that now the conservative form is tested
513      - add a few comments
514    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
515    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
516    o add new diagnostics to seaice: advective, diffusive fluxes (only for
517      multidim-advection, for scheme 2 they are not filled) and transports,
518      thermodynamic growth rates
519    o change units of EmPmR (inside the code, + within coupling interface)
520      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
521      Affects results @ truncation level (cg2d match) and update output of
522       experiments: lab_sea(6), global_ocean.90x40x15(10),
523      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
524      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
525      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
526      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
527    
528    checkpoint59h
529    o pkg/exf:
530      - improve vectorization by moving if-statement out of loops in
531        exf_mapfields, exf_radiation
532      - exf_bulkformulae.F: introduce 2D fields and vectorize code
533    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
534    o testreport:
535      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
536        monitor & update offline_exf_seaice exp. output.
537      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
538    o pkg/seaice:
539      - bug fix in the evp solver: boundary conditions were affected be
540        masking of zMax/zMin (changes results)
541      - minor bug fix in boundary conditions in seaice_calc_strainrates
542        (changes results for no_slip)
543      - seaice_lsr.F: make interpolation of eta dependent on boundaries
544      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
545      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
546        stress formulation and no-slip boundary conditions
547    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
548      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
549    o pkg/seaice: a first HSALT time stepping equation has been checked in
550    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
551      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
552      without requiring DO-IF statements
553    o pkg/thsice:
554      use continuous power-law function for partition of energy between lateral
555      melting/freezing and thinning/thickening ; old code using step function
556      still available with #undef THSICE_FRACEN_POWERLAW
557      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
558    o testreport: change AD testing : check against results/output_adm.txt
559      using same scripts as for forward test.
560    
561    checkpoint59g
562    o adjoint testing: in preparation for changing testreport:
563      - output format: cost and grad written on separated lines
564      - ad output results in directory "results" (instead of "results_ad")
565    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
566    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
567    o pkg/ecco: allow user defined cost function contributions
568    o testreport:
569      Allow to choose (per experiment) the list of tested output variables
570       and the main variable (used to issue a pass/FAIL ) ;
571      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
572      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
573      Also modify printing of summary:
574       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
575       b) echo the list of tested variables in the individual summary.txt of
576          each experiment.
577    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
578      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
579      (but still depend on the tile decompostion of the domain).
580    o pkg/seaice: change a discretization detail to make the B-grid code
581      "more symmetric". This change is likely to remove all "ridges/leads" that
582      where quasi-aligned with the grid in B-grid solutions. It may also be
583      the solution to the stress coupling issues with the B-grid.
584    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
585      remove .cvsignore from input dir. (since testreport no longer run here).
586    o pkg/thsice:
587     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
588     - fix reshaping of sea-ice just after advection:
589       melt all the ice only if ice-volume is too small.
590     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
591       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
592     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
593    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
594      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
595    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
596      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
597      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
598      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
599      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
600      -> update output.txt
601    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
602     this affects truncation error: -> update output.txt of exp:
603      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
604      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
605    
606    checkpoint59f
607    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
608    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
609      a bounded range (in forward mode)
610    o pkg/ecco, ctrl, autodiff and mom_common:
611     internal parameter controls, completements of implementations
612    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
613    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
614      (not seem any difference in testing results).
615    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
616       at face corners.
617    o pkg/generic_advdiff:
618     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
619      loop range indices for computing vertical advection tendency
620      and do the calculation in the interior only (no overlap) ;
621      for now, only implemented for SOM advection (to save CPU time).
622     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
623    o exch2 adjoint
624      First set of changes:
625      - add exch2 hand-written adjoint templates
626      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
627        This will require cleanup in pkg/autodiff/*.F
628        (changed routines currently kept separate in verif. code/)
629      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
630        that used to hide exch2 or cubed-sphere specific code
631        (commented via 'cph-exch2')
632    o pkg/seaice
633      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
634    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
635       output of global_ocean.cs32x15.thsice .
636    
637    checkpoint59e
638    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
639      for B-grid vector (not yet tested) and C-grid vector (<- only used
640      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
641    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
642      (#ifdef ALLOW_SALT_PLUME)
643    o gather_2d/scatter_2d: removed halo regions
644    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
645      scheme and the corresponding test case (under front_relax dir). For now,
646      only available with Skew-flux form and not yet tested in realistic set-up.
647      adjoint: store directives updated, but gradient checks deteriorated,
648      so maybe GM/Redi adjoint is now broken.
649    o seaice adjoint
650      * add AREA, HEFF, HSNOW as control variable
651        (should not change lab_sea results)
652      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
653    o pkg/seaice:
654      * added computation of saltFlux in seaice_growth;
655        For time being, sea ice salinity is assumed constant
656        contribution of snow flooding to freshening of sea ice is neglected.
657        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
658        defaults to 0.0 in order to maintain backward compatibility.
659        Typical values for SEAICE_salinity are 4 to 10 g/kg.
660      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
661      * added SEAICE_availHeatFrac, which specifies fraction of surface level
662        heat content used to melt or grow ice
663      * commented out cap of HICE: it helps keep ice thinner
664      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
665      * applied OBCS T/S mask to HEFFM sea ice mask
666    
667    checkpoint59d
668    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
669     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
670     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
671    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
672     and change default value of parameter "GM_Small_Number";
673     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
674       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
675       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
676    o pkg/ecco: cost function when applying pkg/smooth to controls
677    o pkg/ctrl: add forcingPrecond run time parameter
678    o pkg/seaice:
679     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
680     - fix bug in metric terms of u-equation in LSR solver (implicit part),
681       changes verification/lab_sea
682     - rearrange implicit part of u-equation in LSR solver to make it easier to
683       read, understand, and debug. This causes changes at the truncation level.
684     - fix (serious) bug in the boundary conditions (sign error in the implicit
685       part) of the LSR solver. Changes all LSR results.
686     - fixed problem with HSNOW initialization to avoid thick snow when AREA
687       is initilized with small values - does not change lab_sea results.
688     - added HsnowFile initialization capability
689    o pkg/smooth: addition to model/src and pkg/ctrl so allow
690     initialization of pkg/smooth and application to control vector
691    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
692    o dependencies: pkg/profiles requires pkg/cal
693    o pkg/profiles:
694     - added option ALLOW_PROFILES_GENERICGRID
695         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
696         that interpolation information (grid points and coefficients) is provided
697         within the netcdf input files.
698         -> sample matlab scripts can be found in MITgcm_contrib/gael
699         that allow you to prepare netcdf input files.
700     - also modified: cleaner include statements, cleaner error print statements,
701       cleaner stops when error, and more tests of the netcdf input files consistency.
702    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
703    o pkg/seaice:
704     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
705       requires a new routine: seaice_diagnostics_fill.F
706     - make sure that seaice does not move if not forced (pressure replacement
707       method, Hibler and Ip, 1995), changes results
708     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
709     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
710       It is turned off by default (=-1.), because it changes the results.
711     - make it possible to read AREA from a file, too.
712    
713    checkpoint59c
714    o add S/R and diagnostics for oceanic mixed-layer depth
715    o move GMRedi call after all vertical mixing schemes (including KPP)
716    o pkg/thsice:
717     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
718      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
719    o pkg/obcs:
720     - bug fix for balance code
721    o pkg/seaice:
722      - allow values of SEAICE_elasticParm > 1
723      - add new parameter SEAICE_evpTauRelax as an alternative
724        to SEAICE_elasticParm
725      - make lsr boundary conditions free slip (by default), changes result
726      - add code for no slip boundary conditions for lsr
727      - set minimum of zeta to zero (and not 4e8) (changes results)
728      - add a cap on AREA after advecting AREA if seaice_growth is not called
729    o change calculation of Visbeck K:
730      - no longer depend on tapering scheme; instead, compute slope (limited
731        by GM_maxSlope). this is equivalent to what was comuted before with
732        clipping or linear tappering.
733      - fix vertical averaging (wrong by 1/2 level)
734      - leave the old version (but will not be maintained) within
735        #ifdef OLD_VISBECK_CALC / #endif
736      - update output of exp. ideal_2D_oce
737    o change error catch in calc_r_star to improve vectorization
738    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
739      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
740    o adjoint:
741      Re-organized adjoint checkpointing according to Matt Mazloff
742      (but with modifs/completions/cleanups)
743      Storing is now bundled into large arrays to optimized I/O
744      (and second step in cleanup of the_main_loop)
745    
746    checkpoint59b
747    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
748      - export/import (between ocean & coupler) fields needed for ocean DIC.
749    o pkg/seaice:
750      - get rid of three more exchanges seaice_calc_viscosities (required
751        different loop boundaries in seaice_lsr and seaice_ocean_stress)
752      - bug fix in seaice_ocean_stress (update of lab_sea required)
753      - reduce loop boundaries to necessary minimum also in seaice_evp
754      - go back to the old way of computing deltaC/Z as the adjoint likes that
755        better
756    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
757      passive tracer to an Age Tracer) + update output.txt
758    o pkg/exf:
759      - implement A-grid / C-grid selection for wind-stress input files.
760      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
761      for now, in exf_bulk_largeyeager04.F only :
762      - change implementation for case where windspeed + 2. components wind-stress
763        are read-in. AND use rhoConstFresh to convert evap.
764    o pkg/seaice:
765      - use correct EXCH_UV for wind-forcing (on A-grid).
766      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
767        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
768    o pkg/exf:
769      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
770      EXF_INTERPOLATION:
771      - merge global_with_exf/code version of exf_interp_read.F
772        to the main code ;
773      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
774        reading the file ; Important: This options needs to be defined to recover
775        previous code.
776        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
777      - no longer loose real*8 precision along the way when using exf_iprec=64.
778    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
779      - change discretisation of evp-solver in order to avoid another exchange
780        (changes lab_sea) and clean up a little
781      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
782        help the adjoint (this also changes the results slightly)
783      - add a few "_d 0" where they had been missing in seaice_evp.F
784      - cleaning up: remove unused seaice_calc_rhs.F
785    o pkg/exf: some cleaning-up:
786      - change various "constants" into runtime parameters
787      - cleaned-up Large&Yeager04 routine which should eventually
788        replace exf_bulkformulae.F (changed names of S/R and CPP)
789        and merged various ALLOW_ATM_WIND options
790     only used with thsice pkg (in thsice_get_exf.F):
791      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
792        which are used when useStabilityFct_overIce=TRUE (= the default)
793      - change default values of ice & snow emissivity and scale downward LW
794        by ice & snow emissivity.
795    o pkg/thsice:
796     fix few little problems, in thsice_calc_thickn.F:
797      - growth vertically (and not laterally) if iceFrac == iceMaskMax
798      - melt only laterally if hIce < hThinIce (as the comments say)
799      and in thsice_extend.F:
800      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
801      - start to form ice as soon as the minimum ice-volume is reachable.
802     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
803      and cpl_aim+ocn
804    o pkg/kpp
805     - move computation of surface related input fields to KPP into a new
806       subroutine kpp_forcing_surf.F
807     - remove wrong (within bi,bj loops) EXCH calls.
808     - little cleaning (add argument myThid in last position, cvs header ...)
809     - for now, fix conservation problem by exchanging KPPviscAz (may not
810       be the best fix)
811    o pkg/seaice
812     - check for inconsistent evp parameter/cpp-flag combination
813     - remove leftover errIO flat for obsolete name list error handling
814    o OpenAD
815     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
816    
817    checkpoint59a
818    o pkg/seaice: some parameter clarifications and a little bit of clean up
819    o pkg/thsice: rename run-time parameters:
820       himin       -> hIceMin
821       himin0      -> hThinIce
822       hihig       -> hThickIce
823       i0          -> i0swFrac
824       transCoef   -> bMeltCoef
825       frac_energy -> fracMelting
826      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
827       with default values (for now) that do not change the results.
828      remove old version of thsice vars advection in pkg/seaice.
829    o in FFIELDS.h:
830      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
831      - make pLoad & sIceLoad always available (but still only used if
832         ATMOSPHERIC_LOADING is #define).
833    o pkg/kpp: replaced _KPP_RL with _RL
834    o bug fixes for vertical diffusivity computations when both KPP and
835        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
836        are no longer updating the vertical diffusivity array
837        (passed as argument) but are (re-) setting those arrays.
838    o pkg/seaice: fix bug in evp solver, while doing that
839      - change (improve?) discretization of stress computations for both
840        cgrid-lsr and evp solver
841      - add a new routine to compute strain rates
842      - the above changes lab_sea results
843      - add no slip conditions for evp solver (off by default), lsr-version
844        may follow
845      - fix exchange for shear at Z-points (does not change lab_sea)
846      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
847        (to force the user to pick a time step since there is not "safe" way
848        of choosing it)
849      - add principal stress diagnostics
850      - rearrange fields for evp a little to avoid having to call a: too many
851        exchanges and b: exchanges for stress trensor components which we do
852        not have.
853      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
854        of evp, complete rewrite for lsr case (latter is does not yet work
855        in all cases)
856    o pkg/kpp: add code to have mixing in shelf ice caverns
857      - add myThid to all kpp routines (long overdue)
858    
859    checkpoint59
860    o pkg/exf:
861      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
862        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
863      - move exf header files from lower_case.h to UPPER_CASE.h ;
864        add missing cvs Header & Name
865      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
866      - add namelist param. selectStressGridPosition, exf_monFreq
867      - retire many _CLIM routines, and remove data.exf_clim
868        + params moved to data.exf
869        + climsst, climsss now handled by exf_set_gen, i.e.
870          climss?period=0 refers to constant field,
871          climss?period=-12 to monthly forcing
872      - split up namelists in data.exf
873    o pkg/seaice:
874      - remove seaice_exch and seaice_exch_uv
875      - remove superfluous exchange of theta
876      - add myThid to seaice_budget_ocean/ice
877      - add new interface for atmospheric wind forcing (C-grid only)
878        + new routine
879        + two new field (taux, tauy for stress over ice)
880        + removed one global field (DAIRN) for C-grid case only
881    o pkg/thsise
882      - 2nd set of modifs for thsice adjoint in conjunction with exf
883    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
884    
885    checkpoint58y_post
886    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
887      vertical diffusivity, similar to that in MOM4; turned on using
888      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
889      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
890    o Added capability for 3D specification of background vertical diffusion
891      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
892      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
893      "data" file that contains the 3D vertical diffusivity coefficients.
894    o ice dynamics (pkg/seaice) with thsice thermodynamics:
895      - add code within pkg thsice to advect & diffuse sea-ice fields
896      similar to (and will replace) what has been added in  seaice_advdiff.F,
897      but: - conserving Mass, Heat & Salt.
898           - better when using non-linear advection scheme (not yet fully tested)
899           - can also be used in atmospheric set-up (for now, only the diffusion).
900    
901    checkpoint58x_post
902    o IO option for global-file compact format:
903      - add options when generating topology (utils/exch2/matlab-topology-generator)
904      - add I/O capability (pkg/mdsio).
905      - adapt utils/matlab/rdmds.m to read this format.
906      for now long-line format not yet supported by pkg/mdsio (& exch2).
907    o shelfice: add a few diagnostics
908    
909    checkpoint58w_post
910    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
911      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
912      (and replace horiVertRatio in NH code).
913      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
914                         and tutorial_plume_on_slope (sensitive to truncation)
915    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
916      directly to drive seaice model (C-grid only)
917    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
918     - reintroduce computation of wind from stress,
919     - compute tau (in exf_bulkformulae.F) from windstress averaged to
920       mass points to avoid tau = 0
921     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
922    o rdmnc.m: make it work with "global" files created with gluemnc
923    o rdmnc.m : some improvements in dealing with singleton dimension
924      (tested on all testreport mnc output files).
925    o genmake2: disable pkg/profiles if netcdf test fails.
926    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
927    o move call to cal_readparms up to make calendar parameters/variable available
928      to all packages
929    
930    checkpoint58v_post
931    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
932      useDynP_inEos_Zc tested.
933    o pkg/exf: changes to properly interpolate/mask/scale initial fields
934    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
935      and portions thereof.  See read_cs.txt for description and examples.
936    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
937      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
938      following the great-circle arc between those 2 points.
939    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
940      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
941    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
942     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
943     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
944     - still needs work (not working with some options ; efficiency to improve)
945       and serious testing.
946     - use this scheme for temperature & salinity in 2 advection test exp.:
947       advect_xy & advect_xz, respectively.
948    
949    checkpoint58u_post
950    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
951    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
952    o testreport: add option "-skipdir" to skip some test.
953    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
954      momentum calculation.
955    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
956    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
957      remove checkpoint.F and the_correction_step.F (no longer used);
958      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
959    o add option (linFSConserveTr) to correct for tracer source/sink due to
960      Linear Free surface
961    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
962    o pkg/thsice: fix reading mnc-pickups
963    
964    checkpoint58t_post
965    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
966    o pkg/mdsio:
967     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
968       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
969       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
970     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
971     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
972       either MDS_READ_FIELD or MDS_WRITE_FIELD )
973     - new S/R (to replace MDSWRITEMETA), which allows to write more
974       informations (variable names, time ...) to meta files.
975     - modify rdmds.m to give back the meta file content.
976    o pkg/diagnostics: change vertical interpolation to be safer, and more
977       flexible (define p-levels to interpolate to in data.diagnostics);
978      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
979       diagnostic pointer.
980    o pkg/seaice: more cleaning up of seaice_growth, added many comments
981    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
982    o fix multi-category seaice:
983     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
984       SEAICE_MULTICATEGORY
985     - fix short wave heat flux
986    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
987       and allow to use EVP solver. Change forward lab_sea: test both EVP
988       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
989    o Initial check-in of lab_sea adjoint
990      (very similar to natl_box_adjoint/code_seaice)
991      * used C-grid and EVP solver
992      * used KPP, GM/Redi
993      * uses inAdExact=.TRUE.
994      * gradient checks fail for both ADM and TLM
995        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
996        f.d. gradients actually seem more problematic than ADM, TLM gradients;
997        issue is related to forward mismatch between g77 an ifort
998    o pkg/seaice: overhaul of thermodynamics
999     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1000     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1001     - move a few global fields out of SEAICE.h into seaice_growth.F and
1002       make them 2D (FICE/QNETO/ ...)
1003     - remove FO (it is the same as QNETO)
1004     - introduce a few local fields to avoid modifying external fields such
1005       as atemp, etc.
1006    
1007    checkpoint58s_post
1008    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1009      changed exf_set_gen.F so that
1010        genperiod=0 means input file is one time-constant field and
1011        genperiod=-12 means input file contains 12 monthly means
1012    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1013      this affects truncation error ; generate new output file for exp. which
1014      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1015        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1016        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1017        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1018        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1019        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1020    o start implementation of deep-atmosphere and anelastic formulation
1021    o verification: remove 2nd copy of input files and use script "prepare_run"
1022      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1023    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1024    o profiles: fix for multithreaded case
1025    
1026    o diagnostics: rename few diags:
1027      s/'PRESSURE'/'RCENTER '/g
1028      s/'TICE    '/'oceFreez'/g
1029      s/'TAUX    '/'oceTAUX '/g
1030      s/'TAUY    '/'oceTAUY '/g
1031      s/'SWFLUX  '/'oceQsw  '/g
1032      s/DIFx/DFxE/g
1033      s/DIFy/DFyE/g
1034      and add few ocean-forcing diagnostics:
1035      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1036    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1037      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1038      as actual snow thickness.  It now refers everywhere to effective snow
1039      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1040    
1041    checkpoint58r_post
1042    o modifications to pkg/seaice/growth.F, which change results of
1043      lab_sea experiment: fixes pertain to melting snow over open water, to
1044      masking EVAP under sea ice, and to using the correct AREA variable for
1045      computations of EVAP, PRECIP, HSNOW, and GHEFF
1046    o add ability to read bathy, salt, and theta using MNC (off by def)
1047    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1048      both are turned off by default and do no change any results
1049    o seaice advection with pkg/thsice: a step toward the use of non-linear
1050      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1051    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1052      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1053      in natl_box (affects results @ truncation level: update output.txt)
1054    o multi-threading and IO:
1055      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1056      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1057        (needed to work with SingleCpuIO): tested in all verif. exp.
1058    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1059      affects the results (but none of the verification test uses this scheme).
1060    o Adding some pkg/diagnostics capability to pkg/seaice
1061      (will certainly be subject to changes)
1062    o ctrl: adding new control variables:
1063      lwflux, lwdown, evap, snowprecip, apressure, runoff
1064    
1065    checkpoint58q_post
1066    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1067      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1068      high_res_cube configuration by 4% on Columbia.
1069    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1070      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1071      dynamical allocation (seems to work in multi-threaded).
1072    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1073      single CPU io) so that TAF does not have to see EESUPPORT.h
1074    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1075    
1076    checkpoint58p_post
1077    o obcs: stop if obcs is used with useCDscheme = .true.
1078    o shelfice:
1079     - fix a sign error so that no slip at shelfice interface works
1080     - remove stop for combination non-hydrostatic code and shelfice. That does
1081       not mean, that the results are correct, but at least they are numerically
1082       stable
1083    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1084    o added adjoint exch routined for all exch*3d* routines
1085      and updated flow directives
1086    
1087    checkpoint58o_post
1088    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1089      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1090    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1091      and clean-up reading/writing of pickup files.
1092    o fix local version of read/write pickup (NH part) in rotating_tank/code
1093    o simplify EXCH interface:
1094     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1095     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1096    o added the regrid package
1097    o shelfice:
1098     - add a simple boundary layer scheme to reduce noise
1099     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1100    
1101    checkpoint58n_post
1102    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1103       local variable (not in common block).
1104    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1105      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1106      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1107        to work with SingleCpuIO.
1108    o add "_d 0" to real constant of pkg/cfc subroutines ;
1109       update exp. cfc_exemple & tutorial_cfc_offline output files.
1110    o multi-threading and IO:
1111      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1112        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1113      - barrier before and after reading.
1114      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1115      - avoid using MDS_WRITELOCAL for LAND pkg output.
1116      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1117        common-block variables ; Allows multi-threading with master-thread IO.
1118    o change default MAX_NO_THREADS from 32 to 4 ;
1119      and stop cleanly when MAX_NO_THREADS is too small.
1120    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1121    
1122    checkpoint58m_post
1123    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1124       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1125    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1126       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1127       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1128    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1129        add MITgcm_tutorials (= code + all the tutorials)
1130    o ecco, option to compute cost for total ssh (mean+anom)
1131    o consistent with addition of ptracer and ssh in pkg/profiles
1132    o profiles: adding ptracer and ssh
1133    o testreport: change multi-test output-file name
1134      (from output.txt.{name} to output.{name}.txt)
1135    o profiles: now ok for mutli-tiles case
1136    o seaice: add 4 parameters for different advection schemes for area,
1137      (effective) seaice thickness, enthalphy, and snow height. Their default
1138      is the standard parameter SEAICEadvScheme
1139    o calc_gw:
1140     - add cosFacU in zonal viscous flux (harmonic.visc.).
1141     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1142       of tutorial_plume_on_slope.
1143    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1144    o calc_gw: true flux-form, account for horizontal grid spacing.
1145      update rotating_tank results, but not plume_on_slope (affected at
1146      truncation level, 11 digits).
1147    
1148    checkpoint58l_post
1149    o calc_gw:
1150     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1151     - remove side-drag for now (need to fix it); update plume_on_slope results.
1152     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1153    o commit code to make SST/SSS weights spatially variable
1154      (based on either variable in-situ or variable initial T/S weights)
1155    o pkg/ecco:
1156      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1157        now based on horizontally varying weights wthetaLev, wsaltLev
1158      * cost_averagesflags now returns year indices in addition to day, month
1159      * sflux balance is performed on annual basis
1160        (sflxumm, sfluxmm2, bal_sfluxmm)
1161      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1162        including separate counting and multipliers
1163    o pkg/rbcs
1164      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1165    
1166    checkpoint58k_post
1167    o testreport:
1168     - always build in dir. "build" (if not there, mkdir build instead of building
1169       & running in input)
1170     - run in dir run (if it exists), in build otherwise.
1171     - call prepare_run (if input/prepare_run exists)
1172     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1173    o pkg/exf modifications to interpolation and rotation routines for more
1174       reasonable treatment of North Pole singularity: for tracers North Pole
1175       value is set to northernmost zonal-mean value, for zonal velocity it is
1176       set to zero, and for meridional velocity it is set to northernmost value.
1177    o pkg/exf/exf_check_range.F
1178     - add tile index to diagnostics and move stop statement to the very
1179       end of the routine.
1180    o pkg/diagnostics: (diagnostics_main_init.F)
1181      define title of isomorphic variables according to the current config.
1182    o pkg/thsice with pkg/seaice dynamics:
1183    - fix domain of computation (interior only, required for exf) and do exchanges
1184    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1185    o towards a standard way of dealing with multi-threading in MONITOR
1186      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1187    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1188       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1189    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1190    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1191    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1192       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1193    o tracer advection:
1194     - clean-up and simplify calc_common_factors.F
1195     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1196       advection subroutine (but still not used within DST advection S/R)
1197    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1198    
1199    checkpoint58j_post
1200    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1201      from file (collects calls previously in FORWARD_STEP)
1202    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1203    o adjoint store dir. adjusted accordingly
1204    o genmake2
1205      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1206    
1207    checkpoint58i_post
1208    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1209      on wind stress (SEAICEstressFactor defaults to 1.)
1210    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1211      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1212    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1213      on CS-grid: no longer loosing mass.
1214    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1215    o pkg/ggl90: fix sloppy output and fix a bug
1216    o pkg/seaice: added SEAICEuseEVPpickup parameter
1217      - Set to false in order to start EVP solver with
1218        non-EVP pickup files when using SEAICEuseEVP
1219      - fix sign error in diffusion in seaice_calc_rhs
1220    
1221    checkpoint58h_post
1222    * Modifications for bottom topography control
1223      o replace hFacC by _hFacC at various places
1224      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1225      o add non-self-adjoint cg2d_nsa
1226      o update autodiff support routines
1227      o re-initialise hfac after ctrl_depth_ini
1228      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1229    * Adding verification for 5x5 box (4-layer) bottom topography control
1230    
1231    checkpoint58g_post
1232    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1233       used for mean seasonal cycle, mean diurnal cycle); add an example
1234       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1235    o pkg/ggl90:
1236      - add parameter (minimum surface kinetic energy)
1237      - fix bug (avoiding division by zero)
1238    o couple pkg/thsice to pkg/seaice:
1239      - modify advection in seaice to accomodate new scalar fields to be advected
1240      - only muliDimAdection scheme work with seaice/thsice
1241      - mapping of thsice-variables to seaice-variables, back and forth
1242      - does not break the verification experiments, but does not give the
1243        desired results either
1244    o pkg/seaice
1245      - make (default) second order advection a bit less confusing?
1246    
1247    checkpoint58f_post
1248    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1249      to pkg/seaice):
1250      - new routines thsice_map_exf and thsice_get_exf provide the interface
1251      - add an additional formal parameter to thsice_solve4temp
1252    o pkg/exf:
1253      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1254      - correct Stefan-Boltzmann constant
1255      - new parameter for longwave surface emittance
1256      - separate some stuff from exf_bulkformulae into new routines  
1257        exf_radiation, exf_wind
1258      - add new parameters and constants: longwave emissivity for ocean, ice
1259        and snow, evaporation parameters over ice
1260      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1261        either wind from stress or stress from wind
1262    o pkg/thSIce:
1263    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1264    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1265       and THSICE_CALC_THICKN
1266    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1267    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1268      to make debugging easier.
1269    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1270    o pkg/bulk_force:
1271      - clean-up comments and parameters ;
1272      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1273    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1274      generate new output for test-experiment: aim.5l_cs.thSI
1275    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1276      testreport accordingly
1277    
1278    checkpoint58e_post
1279    o SEAICE_CGRID adjoint done
1280    o R_STAR adjoint implemented.
1281      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1282      * need to sort out init. of h0facc, etc.
1283    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1284      to be able to use it in pure forward.
1285    
1286    checkpoint58d_post
1287    o upgrade simple test-experiment to tutorial example:
1288     step.1: duplicate the experiment and (step.2) will remove the old copy.
1289      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1290      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1291      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1292      tutorial_global_oce_biogeo    <- copy of dic_example
1293      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1294      tutorial_plume_on_slope       <- copy of plume_on_slope
1295      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1296      tutorial_global_oce_optim     <- empty for now (David ?)
1297      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1298     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1299    o correct a sign problem in cost_scat.F
1300    o obcs and ptracers: fix boundary conditions for advections schemes
1301      with larger stencil
1302    o thsice adjoint: start
1303    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1304      completeness
1305    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1306      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1307    o ptracers adjoint:
1308      * avoid extensive recomputatations
1309      * fix missing re-init. of gptr (missed by TAF)
1310    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1311      me to turn off the excessive output to STDOUT that this package produces
1312    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1313      and add those terms in Vector-Invariant formulation.
1314    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1315      if the control period (xx_hfluxperiod etc) is 0
1316    o in profiles pkg, clean routines and fix details
1317    o in ecco pkg, reading ssh data:
1318      fix problem in case the model does not start at iter0=0
1319    o fix mnc-pickup/restart for ptracers
1320    o new package prifiles:
1321      code to compute profile-based cost by Gael Forget
1322      (modifs in ecco, ctrl, autodiff)
1323    o Benign bug fix in initialization (spotted by M. Mazloff) of
1324      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1325    
1326    checkpoint58c_post
1327    o adjoint: finish NLFS adjoint and provide reference output in
1328      verification/global_ocean.90x40x15/results_ad_nlfs
1329    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1330      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1331      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1332      with SEAICE_CGRID defined.
1333    o move calendarDumps from "data" to "data.cal" and clean-up the code
1334      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1335    o add useEXF & useCAL flags (for now, set in hard-coded way)
1336    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1337      (were missing in NH mode, and wrong in quasihydrostatic mode).
1338      waiting for Chris updated version of calc_gw to add those CALLs.
1339    o fix bug in quasihydrostatic S/R ;
1340      add a test for this option: global_ocean.90x40x15.qshyd
1341    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1342      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1343    o add on/off flag useOffLine for package OFFLINE
1344    o seaice:
1345      - modify advection so that it works also on the C-grid
1346      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1347        problem in multi-tile runs with C-grid
1348      - add flags for clipping ice velocities and/or masking solver forcing
1349      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1350        C-grid solver
1351      - added a few comments to seaice_diffusion.F
1352      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1353        are now exclusive)
1354      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1355        required re-ordering the code a little:
1356       + make DAIRN global variable (defined in SEAICE)
1357       + move computation of the viscosities eta and zeta into a new separate
1358         routine (because I need to recompute them in seaice_ocean_stress.F)
1359    
1360    checkpoint58b_post
1361    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1362      update output.txt of exp. aim.5l_cs.thSI
1363    o various mnc cleanups and improvements:
1364      + shrink lookup tables by factor of ~4
1365      + better error reporting when running out of lookup space
1366      + able to handle longer path/file names (up to 500 chars)
1367    o adjoint:
1368      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1369      - TBD: "hidden" mom_vecinv recomp. in dynamics
1370    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1371     (allow to differentiate between forcing components using new integer flags:
1372      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1373     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1374    o ecco
1375      - enable trend removal from SSH anomaly obs.
1376    o adjoint
1377      - a fix for PmEpR when #undef EXACT_CONSERV
1378      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1379      - try to fix "hidden" recomp. in forward_step for NLFS
1380        (NLFS seems broken sometimes after I checked it in)
1381    o seaice:
1382     - add c-grid version of the dynamic solver:
1383       + three new routines that are the c-grid substitute lsr, dynsolver
1384         and ostres
1385       + put a few fields that were local to dynsolver into global common
1386         blocks, so that I can move the computation of stresses etc into
1387         seaice_lsr (saves coding but may break the adjoint).
1388     - replace more hardwired parameters by runtime parameters
1389     - add ice masks that mask the rhs of the implicit solvers where there
1390       is no ice (commented out in seaice_dynsolver, because i am not sure
1391       if this works properly), eventually this should replace the clipping
1392       of ice velocities in seaice_dynsolver to +/-40cm/s.
1393    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1394      include it only where its needed
1395    o move balancing of fluxes before the call of external_forcing_surf
1396    o seaice:
1397      - correct units of turning angles (now they are really in degrees)
1398      - move computation of GWATX/Y out of main routine into dynsolver
1399      - initialize GWATX/Y in seaice_init
1400    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1401      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1402    o seaice: add runtime flags for turning angles (default to zero)
1403    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1404      and trend from exf forcing and ctrl control adjustments
1405    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1406      (since checkpoint57x_post)
1407    o change the default rotation period to 86164.s = the Earth rotation
1408    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1409      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1410    o seaice advection: add code for choosing between the default (2nd order
1411      central differences) and multiDim advection schemes provided by
1412      pkg/generic_advdiff
1413    o seaice:
1414      - removed all references to SEAICE_GRID.h fields from
1415        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1416        (cubed-sphere configuration will change a little)
1417      - grid computations in seaice_init are obsolete now.
1418      - cleaned up code a little so that is easier to read (hopefully).
1419      - added new (better?) discretizations of default advection and diffusion
1420        (turn on with SEAICEuseFluxForm)
1421      - replace 1 in 3d global fields by kSurface in growth.F
1422      
1423    checkpoint58a_post
1424    o seaice:
1425      - bug fix in advect.F
1426    o shelfice:
1427      - separate shelfice load anomaly from pload (breaks with time
1428        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1429        Its default is 0., but it may be computed more cleverly from (unknown)
1430        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1431        done offline. A good approximation of the pressure load anomaly is
1432        necessary to avoid large initial adjustment processes underneath
1433        deep-reaching shelfice.
1434      - small fix in ISOMIP shelfice_thermodynamics
1435      - add more sophisticated thermodynamics of Hellmer (1989), this is
1436        now the default
1437      - give a few constants more intuitive names
1438    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1439      if bulk formulae are used in long integration (especially EmPmR). Turn
1440      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1441      if balancePrintMean, the imbalance that is substracted is printed to
1442      STDOUT.
1443    o fix bug (typo) in obcs_apply_eta.F
1444    o add a new package shelfice which enables us to model the circulation
1445      underneath shelf-ice with draughts of hundreds of meters.
1446     - works
1447     - to do: + include improved thermodynamics
1448              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1449                instead of new field kTopC
1450              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1451                instead of new field R_shelfIce and new code in ini_depth.F
1452                and ini_mask_etc.F?
1453              + adjust vertical mixing schemes?
1454    o seaice pkg:
1455     - add a cpp-flag to include a simple formula for a salinity dependent
1456       freezing point of sea water at the surface
1457     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1458       meridional stresses are now different (and hopefully correct)
1459    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1460       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1461       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1462    o pkg/diagnostics: add options and parameters for regional-statistics
1463       diagnostics ; define regions by reading a region-mask from a file
1464       (might add other options later)
1465    o pkg/bulk_force:
1466     - add option and parameters to use AIM surface-flux formulae.
1467     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1468       others forcing fields (defined in PARM05, parameter file "data") are loaded
1469       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1470     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1471     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1472     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1473       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1474     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1475    
1476    checkpoint58
1477    o add "--embed-source" option to genmake2 which, when the supporting
1478      tools can be compiled (as determined by genmake2) will turn on the
1479      embed_files package which then embeds the entire MITgcm source code
1480      (*.[fFhc] + Makefile) used for the build within the executable
1481      - requested by CNH but off by default
1482      - adds a paltry <9MB to the mitgcmuv executable in most cases
1483      - only writes the output when useEMBEDSRC in eedata is true
1484    o clean up 3-dim. relaxation codes:
1485      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1486      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1487      * Thanks to Tom Haine for testing!
1488    
1489    checkpoint57z_post
1490    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1491      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1492    o fix the pickup behavior for obcs in combination with ptracers
1493    o fix a bug in ptracers_external_fields_load
1494    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1495      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1496    o transfered surface NH pressure to eta field (if exactConserv).
1497    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1498         and update lab_sea output.txt file.
1499    o completing 3-dim. relaxation code: additional term
1500         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1501      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1502      * At compile time, in "EXF_OPTIONS.h" set
1503          #define  ALLOW_CLIMTEMP_RELAXATION
1504          #define  ALLOW_CLIMSALT_RELAXATION
1505      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1506          tauThetaClimRelax3Dim = 15552000.0,
1507          tauSaltClimRelax3Dim  = 15552000.0,
1508      * 3 cases:
1509          1) Use a constant-in-time 3-dim. field
1510          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1511          3) Real-time relax. to time-evolving prescribed field
1512    o Adding Laplacian-type smoothness constraint on
1513      initial and boundary (forcing) controls (ic, bc)
1514      * enable at compile-time via
1515        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1516      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1517      * Absolute scale somewhat unclear so far
1518      * no area weighting was included since no other cost term does so far
1519    
1520    checkpoint57y_post
1521    First step for a NLFS adjoint
1522    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1523    o new init. routines for calc_r_star, calc_surf_dr
1524    o still need to deal with ini_masks_etc
1525    o testreport seemed happy
1526    checkpoint57y_pre
1527    
1528    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1529    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1530    o add new offset feature to offline pkg (plus minor cleanup)
1531    o cfc fixes for final year of integration
1532    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1533      be in GCHEM_OPTIONS).
1534    
1535    checkpoint57x_post
1536    o fix testreport Pb in multiple test experiment.
1537    o cleanup our namelist syntax in verification:
1538      - make it more F95 standards compliant (some work still needed)
1539      - allows the vast majority of our tests to work with gfortran
1540    o Non-Hydrostatic:
1541     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1542     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1543    o Allow to apply AB on T,S rather than on AB(gT,gS):
1544     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1545     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1546       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1547     - need a "clever" read_pickup to restart from the other AB formulation
1548    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1549    o remove some unused variables (reduces number of compiler warnings)
1550    o adjoint
1551      * Disable useVariableViscosity for adjoint for time being
1552        (there are a number of extensive recomputations)
1553      * Initialize certain variables needed for adjoint
1554    
1555    checkpoint57w_post
1556    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1557                 fix the singleCpuIO RS version of MDSWRITEFIELD
1558       and add a WARNING if using globalFiles=T with multi-processors.
1559    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1560      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1561    o tracer advection scheme:
1562      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1563       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1564       was not very convenient).
1565      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1566       (further tests needed for the implicit DST & Flux-Limiter schemes).
1567    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1568      and sRef for convenience, handy, when you want to initialize
1569      ptracers in a large domain with a constant non-zero value. Also,
1570      untangle ptracers_init.F a little.
1571    
1572    checkpoint57v_post
1573    o change dome exp. to use variable viscosity in side-drag terms.
1574    o remove all the files from the cfc_offline test since they are now
1575      incorporated into tutorial_cfc_offline which has been producing
1576      identical results for a few days of testing
1577    o add new parameter: sideDragFactor to enable half-slip-side BC
1578      and change side-drag S/R to use viscosity from mom_calc_visc
1579      (can switch back by setting sideDragFactor=0.); affects results at
1580      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1581       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1582    o vorticity & strain are now computed without masking, to account for
1583      no-slip-side BC in variable viscosity calculation ; mask is applied
1584      anyway later on, before computing advection/coriolis terms.
1585    o modify exp4 to test new obcs support for reading from external files
1586      and for passive tracers
1587    o fix behavior of ptracers_monitor when monitor output is written to a
1588      netcdf-file; still not independent of monitor.F (writes in the same
1589      file).
1590    o change default value of tRef (put a uniform, meaningful value for ocean
1591      & atmos) and initialize sRef (was missing, as Martin mentioned).
1592    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1593      to be proportional to enstrophy dissipation length.  Thus,
1594       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1595      This is now consistent with Smagorinsky and with the manual.
1596    
1597    checkpoint57u_post
1598    o OBCS and PTRACERS: add open boundary support for passive tracers
1599      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1600        OB-values from file; this is not different from the way theta and salinity
1601        are treated
1602      - however, Orlanski-radiation conditions are not supported, and the model
1603        will stop if you use pTracers and Orlanski at the same time.
1604      - beefed up the rountine obcs_external_fields_load: now only those open
1605        boundary values are overwritten with values from files for which there
1606        are really files, otherwise the OB-fields remain untouched. This makes
1607        it possible to use different OBs at different ends of the domain (as
1608        with EXF)
1609    o reduce number of exch calls in shap_filt (s2).
1610    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1611      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1612    
1613    checkpoint57t_post
1614    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1615    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1616      same truncation, independent of the face number: affects affects several
1617      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1618    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1619      note that biharmonic viscosity + no-slip was not tested in any experiment.
1620    o fix bug in non-linear free-surf side-drag ; generate new output for
1621      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1622    o make mnc honor the writeBinaryPrec flag for most kinds of output
1623    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1624    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1625      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1626    o add brackets in multi-terms sum to get same truncation, independent of
1627      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1628      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1629    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1630      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1631      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1632      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1633      Suggested values of viscosity parameters found in mom_calc_visc.
1634      Many new viscosity diagnostics available.
1635    
1636    checkpoint57s_post
1637    o Add clearing-house for viscosity calculations, mom_calc_visc and
1638      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1639      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1640      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1641      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1642      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1643      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1644      ViscAhStrain and viscAhTension are now retired.
1645    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1646    o In response to JMC's bug report, genmake2 now ignores any soft-links
1647      that it finds in the *current* directory when searching for files.
1648      Soft-links found in any other source directories will still work as
1649      they did before.
1650    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1651      a C routine to unlimit the stack size
1652    o mnc-ify pkg/aim snapshot vars
1653    o mnc-ify pkg/land as requested by Daniel
1654    o various changes to mnc including:
1655      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1656      - output can now be grouped so that all files within a group
1657          change the ITER portion of their names in lock-step together
1658      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1659          and works with both EXCH1 and EXCH2 (but needs more testing)
1660      - writing works for all verification test cases w/ g77 on Linux
1661    
1662    checkpoint57r_post
1663    o make MNC variable initialization happen earlier
1664    o add diagnostics for (almost) each term of the momentum Eq.
1665    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1666    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1667    o remove MINIMAL_TAVE_OUTPUT option ;
1668      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1669    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1670      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1671    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1672    o add time-dependent SST, SSS control
1673    o cost terms in ecco/ modularized (new cost_generic.F)
1674    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1675    o new infrastructure for seaice model vs. obs misfits in seaice/
1676      * driver from the_main_loop.F is seaice_cost_driver.F
1677      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1678      * gradient check in Exp. 6a of natl_box_adjoint/
1679    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1680      (see README file)
1681    
1682    checkpoint57q_post
1683    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1684    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1685      - bug was reported by Jean-Michel and Ian Fenty
1686    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1687      update exp. cpl_aim+ocn output.
1688    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1689      Needed for high-res. runs with large global files
1690      to be able to limit tapelev size
1691    o Changed some tests for adjoint:
1692      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1693      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1694      * global_ocean.90x40x15/ back to default 3-level checkpointing
1695    o Modifications to enable scripted COMMON to MODULE conversion
1696      * verification/OpenAD/code/ has necessary scripts and description;
1697      * converts, compiles and runs successfully;
1698    
1699    checkpoint57p_post
1700    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1701    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1702      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1703    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1704    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1705      (was already the case for dissipation with mom_vecinv,
1706       and also the case for grad.PhiHyd when staggered-timeStep)
1707      This will allow to put dissipation out-off the AB time-stepping.
1708     Unfortunately, affects truncation error. Update output of exp. that "fails"
1709      (cg2d matching number) and leave the others for later: front_relax(10),
1710      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1711      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1712    
1713    checkpoint57o_post
1714    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1715      (2) its ready to be documented during the 20050801 DocFest
1716    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1717      for ideal_2D_oce and lab_sea on linux_ia32_g77
1718    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1719      in global1x1_tot/code_seaice_adj to access indices 32, 33
1720      (worth another tag)
1721    
1722    checkpoint57n_post
1723    o adding precip control xx_precip 32
1724    o adding swflux control xx_swflux 33
1725    o Replacing 10 forcing penalty cost routines by 1 generic.
1726    o Implementing partitioning in time-mean and variable adjustment
1727      for atmos. state.
1728    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1729    o in natl_box_adjoint:
1730      * updated exp 1 to 10
1731        (but does not have time-mean vs. variable split results yet)
1732    o updated global1x1/*_seaice_adj/
1733      to incorporate latest changes
1734    o enable useSingleCpuIO for mdsio vector routines
1735      (applies in particular to tapelev I/O)
1736    o removed inefficient K-loop in all active_file*control*.F
1737    
1738    checkpoint57m_post
1739    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1740      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1741    o pkg/exch2: filling of face-corner halo regions is optional
1742      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1743    
1744    checkpoint57l_post
1745     tag before updating tutorials (pre-release-2)
1746    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1747       for output and interpolation of input fields onto model grid)
1748    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1749       Affects results of exp. rotating_tank ; update output.txt.
1750    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1751          and taking the square quantity and/or using a fraction-weight field.
1752    o fix aim_diagnostics_init.F mate numbers.
1753    o add mnc output capability to diagnostics/diagstat and update
1754      our cvsignore files for the ACSII output generated
1755    
1756    checkpoint57k_post
1757    o lab_sea now uses diagnostics package and provides a suite of
1758      new EXF diagnostics output.
1759    
1760    checkpoint57j_post
1761    o exf
1762      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1763        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1764        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1765      * extended diagnostics output
1766        - now includes all EXF variables
1767        - hs, hl moved to common block
1768        - separate S/R for diagnostics, called after ctrl vector is added
1769        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1770        - EXFqnet contains true Qnet (i.e. includes qsw)
1771      * updated verif. lab_sea, global_with_exf
1772      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1773        to ensure that diagnostics sees a true EXFqnet
1774    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1775    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1776      several times with different frequencies.
1777    o mnc-ify the thsice package as requested by Daniel Enderton
1778      - the monitor--MNC output needs work
1779      - many attributes need to be added (most are currently blank)
1780    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1781      - many attributes need to be added (most are currently blank)
1782    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1783    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1784    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1785      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1786         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1787    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1788     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1789    
1790    checkpoint57i_post
1791    o Diagnostics package was changed: diagnostic allocation is now deactivated
1792      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1793    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1794      add 1rst Order upwind vertical Shear.
1795    o add a quick fix for A/B checkpointing in OFFLINE mode
1796    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1797      end-run around the C/Fortran linking horror in eesup/src/timers.F
1798    o added pkg/runclock: allows user to terminate run based on wall clock
1799    o added non-hydrostatic scaling parameter: nh_am2
1800    o pkg/my82: futile attempt to make results compiler-independent by adding
1801      some "_d 0", etc. no effect.
1802    o for mnc output, fill the 'T' coordinate var with myTime and create a
1803      separate 'iter' variable for iteration count
1804    o pkg/diagnostics:
1805      add new capability: output of Global/Regional & per-level statistics ;
1806      tested against monitor output (including land & thSIce) on various exp.
1807    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1808    
1809    checkpoint57h_done
1810      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1811      data.diagnostics, data.gchem, data.ptracers) is done.
1812    
1813    o pkg/diagnostics: prepare for Global/Regional statistics.
1814      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1815    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1816      and rename it: DIFFERENT_MULTIPLE
1817    
1818    checkpoint57h_post
1819    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1820    o pkg/diagnostics: change output frequency, now in seconds (instead
1821      of Nb of iterations). This requires to change data.diagnostics.
1822    checkpoint57h_pre
1823    
1824    o in mnc, let the user create the output dir if both mnc_outdir_date
1825      and mnc_outdir_num are false
1826    o add fflags() to pkg/diagnostics which allows one to specify, on a
1827      per-file basis, the file precision [default behavior is unchanged]
1828    o added diagnostics to pkg/kpp, including computation of mixed layer
1829      depth based on a temperature/density criterion
1830    o updated verification/natl_box to test the new pkg/kpp diagnostics
1831    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1832    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1833    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1834      not mnc -- this mistake was found by JMC and is now corrected
1835    
1836    checkpoint57g_post
1837    o add Adams-Bashforth 3rd Order time stepping:
1838      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1839      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1840    checkpoint57g_pre
1841    
1842    o make lambda[Theta,Salt]ClimRelax spatially varying
1843      (default remains spatially uniform constant based on tau)
1844    o added new control variables
1845      * init. uVel, vVel, etanN
1846      * lambda[Theta,Salt]ClimRelax
1847    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1848      (suggested by G. Forget)
1849    
1850    checkpoint57f_post
1851    o add parameter "baseTime" = model base time = time at iteration zero
1852      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1853      account for baseTime shift
1854    o move Coriolis arrays from PARAMS.h to GRID.h
1855    checkpoint57f_pre
1856    
1857    o mnc-ifying the seaice package
1858    o introduced an alternative length scale calculation for use in the limiting
1859      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1860    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1861    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1862      as well as grad(vort3).  Made it compatible with both approximate form
1863      for the cubed sphere and full form of these gradients.  Added flag
1864      useFullLeith to select between approximate and full form.  
1865    o add "d0" in getcon.F to reduce differences between compilers/platforms
1866      update output.txt of exp. fizhi-gridalt-hs
1867    o change port_rand funtion to allow to set the seed.
1868    o fix obscure MNC bug involving conversion between reals and integers
1869      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1870        new version is now more standards-compliant
1871    o adjoint-related modifications
1872      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1873      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1874      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1875    
1876    checkpoint57e_post
1877    o Adding eddy stress controls a la Ferreira et al.
1878    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1879    
1880    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1881      update output.txt of exp. fizhi-gridalt-hs
1882    o add more "Z" dimensions and associated coordinate vars to MNC
1883    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1884    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1885      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1886      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1887      months and years.  Requires pkg/cal.
1888    o diagnostics: add pickup functionality
1889      - off by default for backwards compatibility
1890      - current version only uses MDSIO -- MNC will be added
1891    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1892    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1893    
1894    checkpoint57d_post
1895    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1896    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1897      output from the diagnostics package
1898    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1899    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1900      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1901    o add coordinate variables to the MNC output from the diagnostics package
1902    o change MNC-flags default value: true when useMNC=TRUE
1903    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1904      the ability (off by default) to read the grid information using MNC
1905    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1906    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1907    o do snap-shot diagnostics at the middle of the time-interval (instead of
1908      at the end).
1909    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1910      new test for AIM with thSIce + slab-ocean
1911    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1912    o move state variable diagnostics to the beginning of the time step ;
1913      (note: still needs some work specially for snap-shot diagnostics)
1914      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1915    
1916    checkpoint57c_post
1917    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1918    o generate new output.txt files on faulks with g77 & the new -ieee option
1919    checkpoint57c_pre
1920    
1921    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1922      update output.txt of exp. global_ocean.90x40x15
1923    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1924      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1925    o add saltFlux(+File) forcing capability with periodicExternalForcing
1926    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1927    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1928    o improvements for the MNC output from DIAGNOSTICS:
1929      - correct handling of the unlimitied dimension
1930      - all dims now have associated coordinate variables
1931      - variables located at U, V, and Corner ("Z") points are now written
1932        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1933        *all* data points are output
1934    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1935    o added pkg/seaice/seaice_monitor.F
1936    o mdsio_readfield.F can now read files visible only to master MPI process.
1937    o pkg/seaice: some test code for ice-modified ocean stress
1938    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1939      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1940      spurious negative numbers for precipitation and humidity.  Will cause
1941      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1942    o pkg/ctrl/
1943      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1944        May be enabled via doPackDiag
1945      *  introduce z-scaling of
1946         + gradient (doZscalePack) and
1947         + control (doZscaleUnpack)
1948    o pkg/mdsio/
1949      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1950      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1951    
1952    checkpoint57b_post
1953    o simplify options in diagnostics_fill arguments (remove weird combinations)
1954    o fix MNC coordinate variables so that they now contain per-face index
1955      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1956      general, EXCH2 grids are only aligned to a "local" coordinate system
1957    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1958    o Implement instantaneous output within pkg diagnostics:
1959      setting a negative frequency in data.diagnostics produces
1960     "snap-shot" output (as opposed to time-average if freq > 0)
1961    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1962      NOTE: change ptracer diagnostics name: use 2 characters to work with
1963            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1964    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1965      becomes the coordinate variable for the 'T' dimension
1966    o add CF-style coordinate variables to MNC
1967      - just a first cut:  numbers are meaningless on the cubesphere and
1968        missing along the T axis but otherwise it works!
1969    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1970    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1971    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1972      this is based directly on what the model compute, so that the content of
1973      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1974    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1975    o clean up build options files for SunOS, in particular
1976      - remove -traditional from xmakedepend
1977      - change -xarch=v9 to -xarch=native for f77
1978      - restore use of make (not gmake)
1979      - add CC=gcc if using g77
1980    o changes per discussion of AM, JMC, & EH3 today:
1981      - move redundant "grid" variables out of "state" -- in preparation of
1982        creating proper CF-style coordinate variables and in recognition
1983        that any/all grid variables can be easily copied (eg. w/NCO) from
1984        the grid files into any of the other NetCDF files
1985      - *always* output grid variables with MDSIO (this will eventually be
1986        changed)
1987      - output MNC grid file if useMNC is true
1988    o every instance of _END_MASTER() has been found and replaced with
1989      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1990      preprocessors
1991    o re-arrange diagnostics pkg initialisation:
1992     - allow each package to extend the available diagnostics list
1993     - add some checking and fix small problems (multi-threaded, ...)
1994     - new S/R diagnostics_fill (replace fill_diagnostics):
1995       look through the short list of active diag. (instead of the long list)
1996       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1997    
1998    checkpoint57a_post
1999    o this set of changes restores TAMC compatibility
2000      tested for global_ocean.90x40x15 adjoint on trough
2001      (what a pain)
2002    
2003    checkpoint57a_pre
2004    o some modifs in tools/build_options for sunos
2005    o call ctrl_pack for ctrl at end for optimcycle=0
2006    
2007    checkpoint57
2008    o add horizontal bi-harmonic viscosity for vertical velocity
2009      - new parameter viscA4W (defaults to viscA4)
2010      - affects only non-hydrostatic code
2011      - to be done: no-slip lateral boundary conditions
2012    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2013    o implement Implicit Vertical advection for pTracers
2014    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2015      (implemented also for implicit vertical diffusion & advection)
2016    o OBCS: extend application of tracer open boundary conditions
2017      to a strip beyond the boundary of width Olx/Oly
2018    o add call monitor to TAF set of required calls (flow directives)
2019      and include in natl_box_adjoint
2020    o untangle a few ifdefs related to cost, ctrl, autodiff
2021      untangel a few ALLOW_ECCO_OPTIMIZATION
2022    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2023      (theta2, salt2 in ecco_cost_weights)
2024    
2025    checkpoint56c_post
2026    o OBCS as control variables
2027      - update ctrl_ad_diff.list, obcs_ad_diff.list
2028      - remove balance of obcs controls from default
2029      - fix index bug nobcs in ctrl_init
2030      - fix dummy fields filen in ctrl_pack
2031      - add dummy weights for obcs
2032    o lsopt: comment out fort.94 output
2033    o optim:
2034      - remove unnecessary header files
2035      - adjusted namelists
2036      - add xerbla.F to Makefile
2037    o exf:
2038      - multiple modifications of exf_check_range
2039      - unit change in exf_init_runoff from [m/year] to [m/s]
2040    o mdsio:
2041      - i/o-vector change debugLevel from debLevA to debLevB
2042    
2043    checkpoint56b_post
2044    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2045      is called from DO_THE_MODEL_IO
2046      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2047      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2048      - clean up PTRACERS_WRITE_TIMEAVE a little
2049    o add another verification experiment that tests both the cfc-pkg and
2050      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2051      reactive tendencies treated inline with regular timestepping
2052    o testreport previously did a lousy job of comparing small numbers, so
2053      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2054      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2055      testreport.
2056    o ptracers_monitor: bug fix for MPI
2057    
2058    checkpoint56a_post
2059    o GCHEM: finish reorganizating the package
2060      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2061        (introduces another 3D-array for each passive tracer, but only if
2062        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2063        gchemTendency is not needed because the timestep is done separately)
2064      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2065      - GCHEM is now---more or less cleanly---separate from PTRACERS
2066      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2067        so clear to me how that should be done in a general way.
2068    o CFC: improve formatting of output in CFC_ATMOS
2069    o PTRACERS:
2070      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2071        that ALL experiments with ptracers enable can be checked. This makes
2072        GCHEM_MONITOR obsolete.
2073      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2074        monitorFreq
2075      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2076    o add PTRACERS (PTR0[1-5]) to testreport output
2077    o exf_check_range:
2078      * default changed to .TRUE.
2079      * will check values for niter0 if debLevA, every timestep if debLevB
2080      * STOP in exf_check_range if 'out of range'
2081      * range chosen generous to allow for potential extema
2082      TBD: a version with stricter range
2083           permitted range would be runtime parameters
2084  o GMredi:  o GMredi:
2085    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2086    - 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 2089  o GCHEM:
2089    - 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
2090      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2091    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
2092      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2093        this flag is now only visible within GCHEM-pkg routines.
2094      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2095        be replaced by a 3D array that is computed before thermodynamics; for
2096        this, the tracer ID iTracer had to be included into the parameter list
2097        of ptracers_forcing
2098      - set up forward_step to call gchem_forcing, that will replace
2099        gchem_forcing_int in ptracers_forcing
2100      - cleaning up
2101  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
2102    
2103  checkpoint56  checkpoint56

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