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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.1052 by mlosch, Mon Jan 12 10:10:19 2009 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  o adding precip control xx_precip  o pkg/obcs: fix loop ranges for balancing code
8  o moved ptracer ctrl index 17 -> 32  o pkg/flt:
9     - improve criteria for finding which tile owns a float.
10     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
11    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
12      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
13      with ocean biogeo)
14    o pkg/flt:
15     - do some cleaning and fix the restart ;
16     - add output.txt in flt_example/results to get this pkg tested.
17    o genmake2: add an EXTENDED_SRC option and flag.
18       for now, cannot be turned on on command line (only through genmake_local)
19    o pkg/mdsio: read/write vector:
20     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
21     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
22       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
23     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
24      (drop to 4 digits matching for grad). But this test does not look very
25      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
26    
27    checkpoint61g
28    o pkg/flt:
29      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
30       + make OPTIONS file more standard.
31      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
32      - fix _BYTESWAPIO CPP-Flag
33      - standard reading of file-parameter "data.flt"
34      - fix argument list of S/R FLT_RESTART
35      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
36    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
37    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
38      a still unfixed compiler/optimization bug
39    
40    checkpoint61f
41    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
42      update results of global_ocean.cs32x15.icedyn test.
43    o move getcon.F from model/src to pkg/fizhi.
44    o pkg/exf: add parameter for extrapolation of temp up to the surface
45       and option to prevent negative evap (in bulk_largeyeager04 only).
46    o Prather Advection scheme: fix tracer conservation for divergent flow
47      (e.g., when using NonLin Free-Surface).
48    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
49    o gmredi (Visbeck-variable-K):
50     - add more parameters to Visbeck-variable-K.
51     - use a 5 points average for dSigmaR in Visbeck-K calculation
52       (more "homogenous": same stencil and same weights as in dSigmaH)
53     - update output of ideal_2D_oce experiment.
54    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
55      (#undef REAL4_IS_SLOW)
56     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
57       coordinate variable
58     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
59       (surface forcing fields), removes some of the functionality
60     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
61     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
62       probably not all: copy _RS surface flux fields to RL field before
63       calling DIAGNOSTICS_FILL
64     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
65       real*4 (CALL EXCH_*_RS) versions.
66     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
67       (generate new output).
68    
69    checkpoint61e
70    o gmredi (Visbeck-variable-K):
71      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
72      - change computation of Visbeck-K where Slope > Smax :        
73        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
74        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
75    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
76      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
77    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
78    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
79      does not become too large (to avoid precision problems in implicit-diffusion
80      solver); update ideal_2D_oce output.
81    o pkg ggl90:
82      - in ggl90_cal.F: compute only one set of visc/diff, used to
83        step forward TKE/T/S/momentum
84      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
85        have Prandlt =1)
86    o gmredi (fm07):
87      - add lower limit on Transition layer thickness + lower limit on 1/lambda
88      - allow to set few more params from data.gmredi
89    o pkg ggl90:
90          - add missing sqrt(2) factor in computation of mixing length
91            scale in ggl90_calc.F
92            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
93    
94    checkpoint61d
95    o adjoint modifs
96      - adapt to new field rhoInSitu
97      - allow to revert from StoreDynVars2D, StoreDynVars3D
98        to individual fields
99        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
100    o store 3-D (in-situ) density in commom block (DYNVARS.h)
101     - save 1 rho computation.
102     - no longer modify T & S inland when using down_slope pkg.
103    o gad_som : allow to switch to SOM advection for T & S without corresponding
104      pickup files (using new S/R: MDS_CHECK4FILE).
105    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
106      (for useSingleCpuIO to work in multi-threaded)
107    o pkg/shelfice:
108     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
109       with SHELFICEtopoFile in data.shelfice
110     - move code for reading ice shelf topography and modifying hFacC into separate
111       subroutines of the shelfice package
112     - separate initialisation of "fixed" and "variable" variables
113     - kTopC is not (yet) replaced by kSurfC, although this is possible
114    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
115    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
116      and rename:
117      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
118      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
119    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
120    
121    checkpoint61c
122    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
123      to add mass source/sink of fluid in the interior (3-D generalisation
124      of oceanic real-fresh water flux).
125    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
126    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
127    o new pkg: down_slope
128      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
129      - presently, modify T & S inland (dwnslp_calc_rho.F).
130        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
131      - implementation for ocean in P-coords not tested.
132      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
133    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
134      (to facilitate conversion of oceanic pkg to p-coordinate).
135    o change FIND_RHO to FIND_RHO_2D :
136      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
137    o new pkg: cheapaml
138    
139    checkpoint61b
140    o exch2:
141      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
142      - no longer depend on the order sequence (N,S,E,W).
143      - 3rd exchange no longer needed (tested with 24 tiles).
144      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
145      - exch_UV_A-grid readily available (but not yet tested).
146      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
147      (both are no longer needed) in exch_uv: no effect in forward run; but
148       get truncation error differences with adjoint exch.
149    o exch2:
150     - change index-bounds storage (moved from target to local tile,
151       more intuitive this way) ; rename/remove some variables.
152     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
153    
154    checkpoint61a
155    o exch2/matlab-topology-generator:
156      fix bug in index bounds for N-S internal exchange (hard to tell if this
157      had any effect on the solution).
158    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
159      is exceeded
160    o testreport: modify syntax of awk, so that it works also with
161      awk, and not only with nawk and gawk
162    
163    checkpoint61
164    o autodiff
165      Change default for TAF usage by removing argument '-nonew_arg'
166      This changes TAF subroutine argument list (ordering of active var.)
167      Omission of this flag leads to incompatibility w.r.t. TAMC
168      To restore TAMC-compatibility, need following modifs:
169      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
170      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
171      Tested TAF version is 1.9.22
172      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
173    
174    checkpoint60
175    --->>> This is the last checkpoint for which generating the adjoint
176    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
177    --->>> by default.
178    --->>> Future checkpoints will ommit this flag by default.
179    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
180    o pkg/grdchk: Add gradient check to etan0 perturbations.
181    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
182    o pkg/autodiff: more flexibility in zeroadj.
183      model/src: modifying do_oceanic_phys.F accordingly.
184    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
185    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
186      special setup of gmredi for which the adjoint is stable
187      enough for parameter optimization.
188    o bridging the gap between eddy stress and GM.
189      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
190          along with a change in CPP option (now ALLOW_EDDYPSI).
191      -> when using GM w/ GM_AdvForm:
192          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
193          is applied either in the tracer Eq. or in momentum Eq.
194          depending on data.gmredi (intro. GM_InMomAsStress).
195      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
196      The key modifications are in model/src/taueddy_external_forcing.F
197      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
198    
199    checkpoint59r
200    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
201      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
202      fix option to read coriolis(@ cell-corner) from files with CS-grid.
203    o pkg/mnc: add some attributes to standard 1D-coordinate variables
204    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
205      mass points, when using mnc for output
206      - add runtime parameter (missing_value, missing_value_int) to override
207        default (which is the value of getcon('UNDEF'))
208    o pkg/mnc: prepare mnc for the actual use of missing values with the
209      diagnostics package: small fix in mnc_cw_readwrite.template and more
210      initialisation of never used fields
211      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
212      versions
213    o pkg/thsice/thsice_ini_vars.F added default initial values so that
214      thermodynamics sea ice solver does not blow up when some initial fields
215      are missing.
216    o move from external_forcing_surf.F to ini_forcing.F
217      the p-coord. hack consisting in using pLoad to set phi0surf ;
218      update output of tutorial_global_oce_in_p (affected @ truncation level).
219    o Freshen up a bit hs94.1x64x5, notably:
220      remove rotationPeriod and tRef=5*0. (adjoint only), and add
221      exactConserv=.TRUE.
222    o pkg/generic_advdiff:
223      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
224      applies to files where Temperature & Salinity 2nd Order moments are used.
225    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
226      this uses a dynamically allocated internal state data structure
227      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
228      and requires a fortran 90 compiler
229    
230    checkpoint59q
231    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
232       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
233    o Refresh tutorial_global_oce_biogeo, notably:
234      - change bathymetry (put back seamounts in ACC, use hFacs)
235      - change EOS (POLY3 --> JMD95Z)
236      - use Bryan-Lewis vertical diffusivity
237      - use multidimensional advection
238      - remove old virtual virtual in dic pkg, now done through ptracer pkg
239      - change a couple of parameters in dic pkg
240    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
241    o pkg/obcs: change default to OBCSfixTopo = .true.,
242      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
243      - replace "debugMode" with "debugLevel .GE. debLevB"
244    o implementation of TAF directives for gchem,cfc,dic
245    o remove "exp5" (replaced by tutorial_deep_convection).
246    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
247      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
248      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
249      --> changes results in exp4, seaice_obcs
250    o tutorial_deep_convection :
251      update the set-up and increase resolution and domain size ; start
252      from pseudo initial conditions = output at t=120mn in order to see
253      something happening when running testreport.
254    o pkg/seaice: add os7mp as an advection scheme
255                  add check for advection schemes
256                  add a flag for restoring T and S underneath sea ice
257    o pkg/my82: add netcdf-support and diagnostics
258    o thsice pkg:
259      - Now hsMax limits snow height by turning it into ice following
260        flooding scheme (and now conserving energy)
261      - Slight rewriting of the formula in thsice_calc_thick.F
262      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
263      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
264    
265    checkpoint59p
266    o gchem / dic / cfc :
267      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
268      - add new parameter files: "data.dic" & "data.cfc" ;
269      - various re-arrangement in initialisation & header file ;
270      - fix tutorial_global_oce_biogeo for multi-threaded test.
271    o pkg/dic: test for "pickup_dic" file when restarting ;
272      if no pickup-file, can restart with a re-initialised pH (same as it did
273      before) providing pickupStrictlyMatch is set to False.
274    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
275      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
276    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
277      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
278    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
279     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
280       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
281    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
282       scheme to use for vorticty-term ;
283     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
284       (with default selectVortScheme, return to original discretisation)
285     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
286    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
287    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
288      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
289      also fix diagnostics VISCAHW & VISCA4W.
290    
291    checkpoint59o
292    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
293    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
294      move a few statemens out the main loop into separate loops
295    o pkg/shelfice:
296      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
297        (kg/m^2/s), does not break tests, because in verification/isomip,
298        rhoConstFresh=rhoConst (by accident)
299      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
300      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
301        new file model/src/seawater.F, so that they are available for all pkgs.
302      - convert potential temperature into in-situ temperature. This changes the
303        isomip tests => update tests
304    o add a flag writePickupAtEnd (default=true) to be able to suppress
305      writing a pickup at the last timestep
306    o tools/mpack-1.6 :
307      - disable automake (not working) and autoconf (not needed).
308      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
309        also cleaner with much less compilation warnings.
310    o pkg/profiles:
311      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
312      (for "less than 32 characters name" compiler requirement)
313    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
314      conditions that have a different sampling frequency than S/T/U/V obcs
315    o pkg/diagnostics (stats-diags):
316      - fix global Min/Max in case 1 processor get only empty tiles
317    o genmake2: replace (4 times)
318         make genmake_tc_1.o >> genmake_warnings 2>&1
319      with
320         COMM="$CC $CFLAGS -c genmake_tc_1.c"
321         echo $COMM >> genmake_warnings
322         $COMM >> genmake_warnings 2>&1
323      to make genmake2 always see the value of CC as specified in the optfile.
324    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
325      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
326      - modify verification advect_cs test to test SOM-advection on CS-grid.
327    o pkg/ctrl:
328      - Rewrite of ctrl_map_ini_ecco.F,
329        introducing a generic routine (ctrl_map_ini_gen.F).
330      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
331    
332    checkpoint59n
333    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
334      number in dedicate array "hdiag":
335      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
336        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
337      - many small changes (integer format) for large number of diagnostics
338      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
339        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
340    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
341      usingSphericalGrid, this allows to define the rotated grid coordinates
342      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
343      geographical coordinates according to the inverse of the rotation defined
344      by the Euler angles, so that Coriolis parameter and online-interpolation by
345      exf works with the geographical coordinates on XC/YC/XG/YG.
346      Naturally, this feature does not work with all packages, so some
347      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
348      profiles), because there the coordinates are assumed to be regular
349      spherical grid coordinates.
350    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
351      - introduce isopycnal diffusion coefficient control.
352    o tools/adjoint_options:
353      - additional control vector components.
354    o pkg/mnc: have mnc create marginally meaning full coordinate variables
355      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
356    o pkg/mypackage:
357      - add example of read/write pickup for state-var ;
358      - add entry points to the main code for state-vars diags & write-pickup.
359    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
360      transitions for useExfYearlyFields
361      - add new subroutine that determines the file to read from for
362        use*YearlyFields = .TRUE. and .FALSE.
363      - add a verification experiment to global_with_exf that tests
364        useExfYearlyFields with USE_EXF_INTERPOLATION defined
365    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
366      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
367      subroutines (which could be generated from a template, because they are
368      almost identical), for now they are included in obcs_prescribe_read.F for
369      simplicity
370    o pkg/exf:
371      - add a little more diagnostic to exf_interp_read (in analogy to
372        mds_read_field, can be turned off with debugLevel < debugLevA=1)
373      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
374        ugly but fast by unrolling short inner loops, inserting a unroll=8
375        directive in routine lagran, and splitting a loop and making do while the
376        outermost loop (the latter requires the intoduction of index arrays)
377    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
378    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
379      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
380    o verification/seaice_obcs: updated for restart test and latest options
381    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
382      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
383      for now this is only available for the C-grid code and also within
384      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
385    
386    checkpoint59m
387    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
388      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
389    o gad_som : fix flux output (& diagnostics) to have same units as other  
390      advection scheme fluxes (was previously multiplied by deltaT).  
391    o added verification/seaice_obcs both to test seaice open boundaries
392      and to provide an example matlab scrpt for generating them
393    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
394    o pkg/salt_plume: clean up salt_plume_frac.F to
395      remove redundancy in PlumeMethod 1 and 4
396    o pkg/kpp: added saltplume diagnostics
397    o pkg/obcs and pkg/seaice:
398      - do not set uice and vice to zero when OB*icefile are unspecified
399      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
400      - moved seaice tracer obcs after call to seaice_growth
401    o pkg/salt_plume: added various options for salt plume depth
402      criterion and for vertical distribution of the salt
403    
404    checkpoint59l
405    o pkg/ptracers: new version of ptracers pickup:
406      read meta file and write only fields which are needed to restart.
407      ( same logic as main pickup file ; also using pickupStrictlyMatch )
408    o pkg/seaice:
409      - add timescale for melting due to warm mixed layer as a means of
410        setting SEAICE_availHeatFrac more conveniently
411      - add a CPP-flag/runtime parameter check for flooding algorithm
412      - reformulated availHeat in seaice_growth.F to be independent of AREA
413    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
414      unit changes
415    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
416    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
417      SX vector computer.
418    o pkg/seaice:
419      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
420        seaice forcing fields can now be read only through pkg/exf
421      - removed some unused halos
422    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
423    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
424      or U/VICE from U/VWIND before computing U/VSTRESS
425    
426    checkpoint59k
427    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
428      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
429    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
430      all experiments pass when compile with un-initialised var. checking option.
431    o added pkg/salt_plume
432    o script to test restart (for now, in MITgcm_contrib/jmc_script)
433    o pkg/seaice: new read/write pickup version.
434      read meta file and write only fields which are needed to restart.
435      ( same logic as main pickup file ; also using pickupStrictlyMatch )
436    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
437    o lab_sea.hb87: modify the domain & update output.hb87.txt :
438      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
439      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
440      process. Fixed here by closing the domain at the Northern boundary.
441    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
442    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
443      a set of consecutive levels in/from a 3-D array.
444    o pkg/ptracers:
445      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
446      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
447    
448    checkpoint59j
449    o in pkgs: dic, obcs, offline, rbcs:
450      standard way to compute coeff. for time interpolation between 2 time reccords
451      which retains full precision (& make results less dependent on compiler).
452      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
453    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
454      packages instead of reading ice cover and wind speed separately
455    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
456     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
457      to allow to compile customized code before the update)
458    o cleaning-up:
459      - fix CPP instruction syntax in pkg/obcs
460      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
461        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
462      - fix some threads issue in IO parts.
463    o pkg/dic:
464      - add tons of "_d 0" (--> much better testreports !)
465       and then update outputs of tutorial_global_oce_biogeo
466    o pkg/mom_fluxform:
467      add a special version of momentum advection intended to conserve momentum
468      next to a bathymetry step or a coastline edge. (default = off = #undef)
469    o new read/write pickup version:
470      - for now, only implemented for main (mdsio) pickup file.
471      - write out only what is needed to restart; merge pickup_nh , pickup_ph
472        and main pickup together.
473      - read meta file; read only what is needed to restart; stop if a field
474        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
475        if it make sense (even if the restart is not perfect).
476      - if no meta file, assume that pickup to read corresponds exactly to
477        a pickup that would currently be written.
478      - read pickup written in the old format (until checkpoint59i) if it
479        recognizes an old meta file (no field-list).
480      - add a meta file in exp. which starts from a pickup: 2 cases:
481        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
482         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
483        b) a meta file describing the content of the associated pickup file
484         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
485    o pkg/mdsio & pkg/rw:
486      - new routine to read a meta file ; new set of routine to read
487        Multiple-fields file (with meta file).
488    o added open boundary conditions capability for seaice
489        HSNOW, HSALT, UICE, and VICE
490    
491    checkpoint59i
492    o adjoint:
493      * fix multiDimAdvection adjoint
494        (partial recomputation problem by TAF for fVerT(:,:,kDown)
495        and comlev1 size definition (maxpass vs. max. number of tracers)
496      * verification/global_ocean.90x45x15 adjoint now tests
497        NLFS and multiDimAdvection using DST3 (=30)
498      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
499    o pkg/kpp: add "_d 0" to real constant (if missing);
500      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
501      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
502    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
503      for internal parameters related to restart process (formerly from PARAMS.h)
504      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
505    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
506      as argument. (only atm2d & obcs write_pickup have not yet been updated)
507    o pkg/monitor:
508      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
509      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
510      - account for deep Atmosphere factor and density factor (anelastic)
511    o added open boundary conditions capability for seaice HEFF and AREA
512    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
513      thermodynamics
514      - requires a little reorganization, which affects the testreport results
515        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
516        so that now the conservative form is tested
517      - add a few comments
518    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
519    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
520    o add new diagnostics to seaice: advective, diffusive fluxes (only for
521      multidim-advection, for scheme 2 they are not filled) and transports,
522      thermodynamic growth rates
523    o change units of EmPmR (inside the code, + within coupling interface)
524      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
525      Affects results @ truncation level (cg2d match) and update output of
526       experiments: lab_sea(6), global_ocean.90x40x15(10),
527      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
528      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
529      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
530      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
531    
532    checkpoint59h
533    o pkg/exf:
534      - improve vectorization by moving if-statement out of loops in
535        exf_mapfields, exf_radiation
536      - exf_bulkformulae.F: introduce 2D fields and vectorize code
537    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
538    o testreport:
539      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
540        monitor & update offline_exf_seaice exp. output.
541      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
542    o pkg/seaice:
543      - bug fix in the evp solver: boundary conditions were affected be
544        masking of zMax/zMin (changes results)
545      - minor bug fix in boundary conditions in seaice_calc_strainrates
546        (changes results for no_slip)
547      - seaice_lsr.F: make interpolation of eta dependent on boundaries
548      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
549      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
550        stress formulation and no-slip boundary conditions
551    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
552      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
553    o pkg/seaice: a first HSALT time stepping equation has been checked in
554    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
555      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
556      without requiring DO-IF statements
557    o pkg/thsice:
558      use continuous power-law function for partition of energy between lateral
559      melting/freezing and thinning/thickening ; old code using step function
560      still available with #undef THSICE_FRACEN_POWERLAW
561      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
562    o testreport: change AD testing : check against results/output_adm.txt
563      using same scripts as for forward test.
564    
565    checkpoint59g
566    o adjoint testing: in preparation for changing testreport:
567      - output format: cost and grad written on separated lines
568      - ad output results in directory "results" (instead of "results_ad")
569    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
570    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
571    o pkg/ecco: allow user defined cost function contributions
572    o testreport:
573      Allow to choose (per experiment) the list of tested output variables
574       and the main variable (used to issue a pass/FAIL ) ;
575      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
576      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
577      Also modify printing of summary:
578       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
579       b) echo the list of tested variables in the individual summary.txt of
580          each experiment.
581    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
582      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
583      (but still depend on the tile decompostion of the domain).
584    o pkg/seaice: change a discretization detail to make the B-grid code
585      "more symmetric". This change is likely to remove all "ridges/leads" that
586      where quasi-aligned with the grid in B-grid solutions. It may also be
587      the solution to the stress coupling issues with the B-grid.
588    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
589      remove .cvsignore from input dir. (since testreport no longer run here).
590    o pkg/thsice:
591     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
592     - fix reshaping of sea-ice just after advection:
593       melt all the ice only if ice-volume is too small.
594     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
595       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
596     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
597    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
598      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
599    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
600      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
601      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
602      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
603      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
604      -> update output.txt
605    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
606     this affects truncation error: -> update output.txt of exp:
607      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
608      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
609    
610    checkpoint59f
611    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
612    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
613      a bounded range (in forward mode)
614    o pkg/ecco, ctrl, autodiff and mom_common:
615     internal parameter controls, completements of implementations
616    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
617    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
618      (not seem any difference in testing results).
619    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
620       at face corners.
621    o pkg/generic_advdiff:
622     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
623      loop range indices for computing vertical advection tendency
624      and do the calculation in the interior only (no overlap) ;
625      for now, only implemented for SOM advection (to save CPU time).
626     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
627    o exch2 adjoint
628      First set of changes:
629      - add exch2 hand-written adjoint templates
630      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
631        This will require cleanup in pkg/autodiff/*.F
632        (changed routines currently kept separate in verif. code/)
633      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
634        that used to hide exch2 or cubed-sphere specific code
635        (commented via 'cph-exch2')
636    o pkg/seaice
637      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
638    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
639       output of global_ocean.cs32x15.thsice .
640    
641    checkpoint59e
642    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
643      for B-grid vector (not yet tested) and C-grid vector (<- only used
644      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
645    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
646      (#ifdef ALLOW_SALT_PLUME)
647    o gather_2d/scatter_2d: removed halo regions
648    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
649      scheme and the corresponding test case (under front_relax dir). For now,
650      only available with Skew-flux form and not yet tested in realistic set-up.
651      adjoint: store directives updated, but gradient checks deteriorated,
652      so maybe GM/Redi adjoint is now broken.
653    o seaice adjoint
654      * add AREA, HEFF, HSNOW as control variable
655        (should not change lab_sea results)
656      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
657    o pkg/seaice:
658      * added computation of saltFlux in seaice_growth;
659        For time being, sea ice salinity is assumed constant
660        contribution of snow flooding to freshening of sea ice is neglected.
661        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
662        defaults to 0.0 in order to maintain backward compatibility.
663        Typical values for SEAICE_salinity are 4 to 10 g/kg.
664      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
665      * added SEAICE_availHeatFrac, which specifies fraction of surface level
666        heat content used to melt or grow ice
667      * commented out cap of HICE: it helps keep ice thinner
668      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
669      * applied OBCS T/S mask to HEFFM sea ice mask
670    
671    checkpoint59d
672    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
673     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
674     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
675    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
676     and change default value of parameter "GM_Small_Number";
677     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
678       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
679       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
680    o pkg/ecco: cost function when applying pkg/smooth to controls
681    o pkg/ctrl: add forcingPrecond run time parameter
682    o pkg/seaice:
683     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
684     - fix bug in metric terms of u-equation in LSR solver (implicit part),
685       changes verification/lab_sea
686     - rearrange implicit part of u-equation in LSR solver to make it easier to
687       read, understand, and debug. This causes changes at the truncation level.
688     - fix (serious) bug in the boundary conditions (sign error in the implicit
689       part) of the LSR solver. Changes all LSR results.
690     - fixed problem with HSNOW initialization to avoid thick snow when AREA
691       is initilized with small values - does not change lab_sea results.
692     - added HsnowFile initialization capability
693    o pkg/smooth: addition to model/src and pkg/ctrl so allow
694     initialization of pkg/smooth and application to control vector
695    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
696    o dependencies: pkg/profiles requires pkg/cal
697    o pkg/profiles:
698     - added option ALLOW_PROFILES_GENERICGRID
699         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
700         that interpolation information (grid points and coefficients) is provided
701         within the netcdf input files.
702         -> sample matlab scripts can be found in MITgcm_contrib/gael
703         that allow you to prepare netcdf input files.
704     - also modified: cleaner include statements, cleaner error print statements,
705       cleaner stops when error, and more tests of the netcdf input files consistency.
706    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
707    o pkg/seaice:
708     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
709       requires a new routine: seaice_diagnostics_fill.F
710     - make sure that seaice does not move if not forced (pressure replacement
711       method, Hibler and Ip, 1995), changes results
712     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
713     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
714       It is turned off by default (=-1.), because it changes the results.
715     - make it possible to read AREA from a file, too.
716    
717    checkpoint59c
718    o add S/R and diagnostics for oceanic mixed-layer depth
719    o move GMRedi call after all vertical mixing schemes (including KPP)
720    o pkg/thsice:
721     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
722      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
723    o pkg/obcs:
724     - bug fix for balance code
725    o pkg/seaice:
726      - allow values of SEAICE_elasticParm > 1
727      - add new parameter SEAICE_evpTauRelax as an alternative
728        to SEAICE_elasticParm
729      - make lsr boundary conditions free slip (by default), changes result
730      - add code for no slip boundary conditions for lsr
731      - set minimum of zeta to zero (and not 4e8) (changes results)
732      - add a cap on AREA after advecting AREA if seaice_growth is not called
733    o change calculation of Visbeck K:
734      - no longer depend on tapering scheme; instead, compute slope (limited
735        by GM_maxSlope). this is equivalent to what was comuted before with
736        clipping or linear tappering.
737      - fix vertical averaging (wrong by 1/2 level)
738      - leave the old version (but will not be maintained) within
739        #ifdef OLD_VISBECK_CALC / #endif
740      - update output of exp. ideal_2D_oce
741    o change error catch in calc_r_star to improve vectorization
742    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
743      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
744    o adjoint:
745      Re-organized adjoint checkpointing according to Matt Mazloff
746      (but with modifs/completions/cleanups)
747      Storing is now bundled into large arrays to optimized I/O
748      (and second step in cleanup of the_main_loop)
749    
750    checkpoint59b
751    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
752      - export/import (between ocean & coupler) fields needed for ocean DIC.
753    o pkg/seaice:
754      - get rid of three more exchanges seaice_calc_viscosities (required
755        different loop boundaries in seaice_lsr and seaice_ocean_stress)
756      - bug fix in seaice_ocean_stress (update of lab_sea required)
757      - reduce loop boundaries to necessary minimum also in seaice_evp
758      - go back to the old way of computing deltaC/Z as the adjoint likes that
759        better
760    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
761      passive tracer to an Age Tracer) + update output.txt
762    o pkg/exf:
763      - implement A-grid / C-grid selection for wind-stress input files.
764      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
765      for now, in exf_bulk_largeyeager04.F only :
766      - change implementation for case where windspeed + 2. components wind-stress
767        are read-in. AND use rhoConstFresh to convert evap.
768    o pkg/seaice:
769      - use correct EXCH_UV for wind-forcing (on A-grid).
770      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
771        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
772    o pkg/exf:
773      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
774      EXF_INTERPOLATION:
775      - merge global_with_exf/code version of exf_interp_read.F
776        to the main code ;
777      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
778        reading the file ; Important: This options needs to be defined to recover
779        previous code.
780        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
781      - no longer loose real*8 precision along the way when using exf_iprec=64.
782    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
783      - change discretisation of evp-solver in order to avoid another exchange
784        (changes lab_sea) and clean up a little
785      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
786        help the adjoint (this also changes the results slightly)
787      - add a few "_d 0" where they had been missing in seaice_evp.F
788      - cleaning up: remove unused seaice_calc_rhs.F
789    o pkg/exf: some cleaning-up:
790      - change various "constants" into runtime parameters
791      - cleaned-up Large&Yeager04 routine which should eventually
792        replace exf_bulkformulae.F (changed names of S/R and CPP)
793        and merged various ALLOW_ATM_WIND options
794     only used with thsice pkg (in thsice_get_exf.F):
795      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
796        which are used when useStabilityFct_overIce=TRUE (= the default)
797      - change default values of ice & snow emissivity and scale downward LW
798        by ice & snow emissivity.
799    o pkg/thsice:
800     fix few little problems, in thsice_calc_thickn.F:
801      - growth vertically (and not laterally) if iceFrac == iceMaskMax
802      - melt only laterally if hIce < hThinIce (as the comments say)
803      and in thsice_extend.F:
804      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
805      - start to form ice as soon as the minimum ice-volume is reachable.
806     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
807      and cpl_aim+ocn
808    o pkg/kpp
809     - move computation of surface related input fields to KPP into a new
810       subroutine kpp_forcing_surf.F
811     - remove wrong (within bi,bj loops) EXCH calls.
812     - little cleaning (add argument myThid in last position, cvs header ...)
813     - for now, fix conservation problem by exchanging KPPviscAz (may not
814       be the best fix)
815    o pkg/seaice
816     - check for inconsistent evp parameter/cpp-flag combination
817     - remove leftover errIO flat for obsolete name list error handling
818    o OpenAD
819     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
820    
821    checkpoint59a
822    o pkg/seaice: some parameter clarifications and a little bit of clean up
823    o pkg/thsice: rename run-time parameters:
824       himin       -> hIceMin
825       himin0      -> hThinIce
826       hihig       -> hThickIce
827       i0          -> i0swFrac
828       transCoef   -> bMeltCoef
829       frac_energy -> fracMelting
830      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
831       with default values (for now) that do not change the results.
832      remove old version of thsice vars advection in pkg/seaice.
833    o in FFIELDS.h:
834      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
835      - make pLoad & sIceLoad always available (but still only used if
836         ATMOSPHERIC_LOADING is #define).
837    o pkg/kpp: replaced _KPP_RL with _RL
838    o bug fixes for vertical diffusivity computations when both KPP and
839        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
840        are no longer updating the vertical diffusivity array
841        (passed as argument) but are (re-) setting those arrays.
842    o pkg/seaice: fix bug in evp solver, while doing that
843      - change (improve?) discretization of stress computations for both
844        cgrid-lsr and evp solver
845      - add a new routine to compute strain rates
846      - the above changes lab_sea results
847      - add no slip conditions for evp solver (off by default), lsr-version
848        may follow
849      - fix exchange for shear at Z-points (does not change lab_sea)
850      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
851        (to force the user to pick a time step since there is not "safe" way
852        of choosing it)
853      - add principal stress diagnostics
854      - rearrange fields for evp a little to avoid having to call a: too many
855        exchanges and b: exchanges for stress trensor components which we do
856        not have.
857      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
858        of evp, complete rewrite for lsr case (latter is does not yet work
859        in all cases)
860    o pkg/kpp: add code to have mixing in shelf ice caverns
861      - add myThid to all kpp routines (long overdue)
862    
863    checkpoint59
864    o pkg/exf:
865      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
866        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
867      - move exf header files from lower_case.h to UPPER_CASE.h ;
868        add missing cvs Header & Name
869      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
870      - add namelist param. selectStressGridPosition, exf_monFreq
871      - retire many _CLIM routines, and remove data.exf_clim
872        + params moved to data.exf
873        + climsst, climsss now handled by exf_set_gen, i.e.
874          climss?period=0 refers to constant field,
875          climss?period=-12 to monthly forcing
876      - split up namelists in data.exf
877    o pkg/seaice:
878      - remove seaice_exch and seaice_exch_uv
879      - remove superfluous exchange of theta
880      - add myThid to seaice_budget_ocean/ice
881      - add new interface for atmospheric wind forcing (C-grid only)
882        + new routine
883        + two new field (taux, tauy for stress over ice)
884        + removed one global field (DAIRN) for C-grid case only
885    o pkg/thsise
886      - 2nd set of modifs for thsice adjoint in conjunction with exf
887    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
888    
889    checkpoint58y_post
890    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
891      vertical diffusivity, similar to that in MOM4; turned on using
892      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
893      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
894    o Added capability for 3D specification of background vertical diffusion
895      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
896      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
897      "data" file that contains the 3D vertical diffusivity coefficients.
898    o ice dynamics (pkg/seaice) with thsice thermodynamics:
899      - add code within pkg thsice to advect & diffuse sea-ice fields
900      similar to (and will replace) what has been added in  seaice_advdiff.F,
901      but: - conserving Mass, Heat & Salt.
902           - better when using non-linear advection scheme (not yet fully tested)
903           - can also be used in atmospheric set-up (for now, only the diffusion).
904    
905    checkpoint58x_post
906    o IO option for global-file compact format:
907      - add options when generating topology (utils/exch2/matlab-topology-generator)
908      - add I/O capability (pkg/mdsio).
909      - adapt utils/matlab/rdmds.m to read this format.
910      for now long-line format not yet supported by pkg/mdsio (& exch2).
911    o shelfice: add a few diagnostics
912    
913    checkpoint58w_post
914    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
915      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
916      (and replace horiVertRatio in NH code).
917      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
918                         and tutorial_plume_on_slope (sensitive to truncation)
919    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
920      directly to drive seaice model (C-grid only)
921    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
922     - reintroduce computation of wind from stress,
923     - compute tau (in exf_bulkformulae.F) from windstress averaged to
924       mass points to avoid tau = 0
925     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
926    o rdmnc.m: make it work with "global" files created with gluemnc
927    o rdmnc.m : some improvements in dealing with singleton dimension
928      (tested on all testreport mnc output files).
929    o genmake2: disable pkg/profiles if netcdf test fails.
930    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
931    o move call to cal_readparms up to make calendar parameters/variable available
932      to all packages
933    
934    checkpoint58v_post
935    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
936      useDynP_inEos_Zc tested.
937    o pkg/exf: changes to properly interpolate/mask/scale initial fields
938    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
939      and portions thereof.  See read_cs.txt for description and examples.
940    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
941      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
942      following the great-circle arc between those 2 points.
943    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
944      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
945    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
946     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
947     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
948     - still needs work (not working with some options ; efficiency to improve)
949       and serious testing.
950     - use this scheme for temperature & salinity in 2 advection test exp.:
951       advect_xy & advect_xz, respectively.
952    
953    checkpoint58u_post
954    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
955    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
956    o testreport: add option "-skipdir" to skip some test.
957    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
958      momentum calculation.
959    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
960    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
961      remove checkpoint.F and the_correction_step.F (no longer used);
962      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
963    o add option (linFSConserveTr) to correct for tracer source/sink due to
964      Linear Free surface
965    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
966    o pkg/thsice: fix reading mnc-pickups
967    
968    checkpoint58t_post
969    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
970    o pkg/mdsio:
971     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
972       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
973       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
974     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
975     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
976       either MDS_READ_FIELD or MDS_WRITE_FIELD )
977     - new S/R (to replace MDSWRITEMETA), which allows to write more
978       informations (variable names, time ...) to meta files.
979     - modify rdmds.m to give back the meta file content.
980    o pkg/diagnostics: change vertical interpolation to be safer, and more
981       flexible (define p-levels to interpolate to in data.diagnostics);
982      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
983       diagnostic pointer.
984    o pkg/seaice: more cleaning up of seaice_growth, added many comments
985    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
986    o fix multi-category seaice:
987     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
988       SEAICE_MULTICATEGORY
989     - fix short wave heat flux
990    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
991       and allow to use EVP solver. Change forward lab_sea: test both EVP
992       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
993    o Initial check-in of lab_sea adjoint
994      (very similar to natl_box_adjoint/code_seaice)
995      * used C-grid and EVP solver
996      * used KPP, GM/Redi
997      * uses inAdExact=.TRUE.
998      * gradient checks fail for both ADM and TLM
999        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1000        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1001        issue is related to forward mismatch between g77 an ifort
1002    o pkg/seaice: overhaul of thermodynamics
1003     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1004     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1005     - move a few global fields out of SEAICE.h into seaice_growth.F and
1006       make them 2D (FICE/QNETO/ ...)
1007     - remove FO (it is the same as QNETO)
1008     - introduce a few local fields to avoid modifying external fields such
1009       as atemp, etc.
1010    
1011    checkpoint58s_post
1012    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1013      changed exf_set_gen.F so that
1014        genperiod=0 means input file is one time-constant field and
1015        genperiod=-12 means input file contains 12 monthly means
1016    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1017      this affects truncation error ; generate new output file for exp. which
1018      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1019        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1020        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1021        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1022        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1023        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1024    o start implementation of deep-atmosphere and anelastic formulation
1025    o verification: remove 2nd copy of input files and use script "prepare_run"
1026      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1027    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1028    o profiles: fix for multithreaded case
1029    
1030    o diagnostics: rename few diags:
1031      s/'PRESSURE'/'RCENTER '/g
1032      s/'TICE    '/'oceFreez'/g
1033      s/'TAUX    '/'oceTAUX '/g
1034      s/'TAUY    '/'oceTAUY '/g
1035      s/'SWFLUX  '/'oceQsw  '/g
1036      s/DIFx/DFxE/g
1037      s/DIFy/DFyE/g
1038      and add few ocean-forcing diagnostics:
1039      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1040    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1041      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1042      as actual snow thickness.  It now refers everywhere to effective snow
1043      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1044    
1045    checkpoint58r_post
1046    o modifications to pkg/seaice/growth.F, which change results of
1047      lab_sea experiment: fixes pertain to melting snow over open water, to
1048      masking EVAP under sea ice, and to using the correct AREA variable for
1049      computations of EVAP, PRECIP, HSNOW, and GHEFF
1050    o add ability to read bathy, salt, and theta using MNC (off by def)
1051    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1052      both are turned off by default and do no change any results
1053    o seaice advection with pkg/thsice: a step toward the use of non-linear
1054      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1055    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1056      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1057      in natl_box (affects results @ truncation level: update output.txt)
1058    o multi-threading and IO:
1059      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1060      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1061        (needed to work with SingleCpuIO): tested in all verif. exp.
1062    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1063      affects the results (but none of the verification test uses this scheme).
1064    o Adding some pkg/diagnostics capability to pkg/seaice
1065      (will certainly be subject to changes)
1066    o ctrl: adding new control variables:
1067      lwflux, lwdown, evap, snowprecip, apressure, runoff
1068    
1069    checkpoint58q_post
1070    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1071      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1072      high_res_cube configuration by 4% on Columbia.
1073    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1074      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1075      dynamical allocation (seems to work in multi-threaded).
1076    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1077      single CPU io) so that TAF does not have to see EESUPPORT.h
1078    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1079    
1080    checkpoint58p_post
1081    o obcs: stop if obcs is used with useCDscheme = .true.
1082    o shelfice:
1083     - fix a sign error so that no slip at shelfice interface works
1084     - remove stop for combination non-hydrostatic code and shelfice. That does
1085       not mean, that the results are correct, but at least they are numerically
1086       stable
1087    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1088    o added adjoint exch routined for all exch*3d* routines
1089      and updated flow directives
1090    
1091    checkpoint58o_post
1092    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1093      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1094    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1095      and clean-up reading/writing of pickup files.
1096    o fix local version of read/write pickup (NH part) in rotating_tank/code
1097    o simplify EXCH interface:
1098     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1099     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1100    o added the regrid package
1101    o shelfice:
1102     - add a simple boundary layer scheme to reduce noise
1103     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1104    
1105    checkpoint58n_post
1106    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1107       local variable (not in common block).
1108    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1109      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1110      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1111        to work with SingleCpuIO.
1112    o add "_d 0" to real constant of pkg/cfc subroutines ;
1113       update exp. cfc_exemple & tutorial_cfc_offline output files.
1114    o multi-threading and IO:
1115      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1116        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1117      - barrier before and after reading.
1118      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1119      - avoid using MDS_WRITELOCAL for LAND pkg output.
1120      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1121        common-block variables ; Allows multi-threading with master-thread IO.
1122    o change default MAX_NO_THREADS from 32 to 4 ;
1123      and stop cleanly when MAX_NO_THREADS is too small.
1124    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1125    
1126    checkpoint58m_post
1127    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1128       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1129    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1130       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1131       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1132    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1133        add MITgcm_tutorials (= code + all the tutorials)
1134    o ecco, option to compute cost for total ssh (mean+anom)
1135    o consistent with addition of ptracer and ssh in pkg/profiles
1136    o profiles: adding ptracer and ssh
1137    o testreport: change multi-test output-file name
1138      (from output.txt.{name} to output.{name}.txt)
1139    o profiles: now ok for mutli-tiles case
1140    o seaice: add 4 parameters for different advection schemes for area,
1141      (effective) seaice thickness, enthalphy, and snow height. Their default
1142      is the standard parameter SEAICEadvScheme
1143    o calc_gw:
1144     - add cosFacU in zonal viscous flux (harmonic.visc.).
1145     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1146       of tutorial_plume_on_slope.
1147    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1148    o calc_gw: true flux-form, account for horizontal grid spacing.
1149      update rotating_tank results, but not plume_on_slope (affected at
1150      truncation level, 11 digits).
1151    
1152    checkpoint58l_post
1153    o calc_gw:
1154     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1155     - remove side-drag for now (need to fix it); update plume_on_slope results.
1156     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1157    o commit code to make SST/SSS weights spatially variable
1158      (based on either variable in-situ or variable initial T/S weights)
1159    o pkg/ecco:
1160      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1161        now based on horizontally varying weights wthetaLev, wsaltLev
1162      * cost_averagesflags now returns year indices in addition to day, month
1163      * sflux balance is performed on annual basis
1164        (sflxumm, sfluxmm2, bal_sfluxmm)
1165      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1166        including separate counting and multipliers
1167    o pkg/rbcs
1168      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1169    
1170    checkpoint58k_post
1171    o testreport:
1172     - always build in dir. "build" (if not there, mkdir build instead of building
1173       & running in input)
1174     - run in dir run (if it exists), in build otherwise.
1175     - call prepare_run (if input/prepare_run exists)
1176     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1177    o pkg/exf modifications to interpolation and rotation routines for more
1178       reasonable treatment of North Pole singularity: for tracers North Pole
1179       value is set to northernmost zonal-mean value, for zonal velocity it is
1180       set to zero, and for meridional velocity it is set to northernmost value.
1181    o pkg/exf/exf_check_range.F
1182     - add tile index to diagnostics and move stop statement to the very
1183       end of the routine.
1184    o pkg/diagnostics: (diagnostics_main_init.F)
1185      define title of isomorphic variables according to the current config.
1186    o pkg/thsice with pkg/seaice dynamics:
1187    - fix domain of computation (interior only, required for exf) and do exchanges
1188    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1189    o towards a standard way of dealing with multi-threading in MONITOR
1190      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1191    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1192       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1193    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1194    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1195    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1196       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1197    o tracer advection:
1198     - clean-up and simplify calc_common_factors.F
1199     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1200       advection subroutine (but still not used within DST advection S/R)
1201    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1202    
1203    checkpoint58j_post
1204    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1205      from file (collects calls previously in FORWARD_STEP)
1206    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1207    o adjoint store dir. adjusted accordingly
1208    o genmake2
1209      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1210    
1211    checkpoint58i_post
1212    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1213      on wind stress (SEAICEstressFactor defaults to 1.)
1214    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1215      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1216    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1217      on CS-grid: no longer loosing mass.
1218    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1219    o pkg/ggl90: fix sloppy output and fix a bug
1220    o pkg/seaice: added SEAICEuseEVPpickup parameter
1221      - Set to false in order to start EVP solver with
1222        non-EVP pickup files when using SEAICEuseEVP
1223      - fix sign error in diffusion in seaice_calc_rhs
1224    
1225    checkpoint58h_post
1226    * Modifications for bottom topography control
1227      o replace hFacC by _hFacC at various places
1228      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1229      o add non-self-adjoint cg2d_nsa
1230      o update autodiff support routines
1231      o re-initialise hfac after ctrl_depth_ini
1232      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1233    * Adding verification for 5x5 box (4-layer) bottom topography control
1234    
1235    checkpoint58g_post
1236    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1237       used for mean seasonal cycle, mean diurnal cycle); add an example
1238       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1239    o pkg/ggl90:
1240      - add parameter (minimum surface kinetic energy)
1241      - fix bug (avoiding division by zero)
1242    o couple pkg/thsice to pkg/seaice:
1243      - modify advection in seaice to accomodate new scalar fields to be advected
1244      - only muliDimAdection scheme work with seaice/thsice
1245      - mapping of thsice-variables to seaice-variables, back and forth
1246      - does not break the verification experiments, but does not give the
1247        desired results either
1248    o pkg/seaice
1249      - make (default) second order advection a bit less confusing?
1250    
1251    checkpoint58f_post
1252    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1253      to pkg/seaice):
1254      - new routines thsice_map_exf and thsice_get_exf provide the interface
1255      - add an additional formal parameter to thsice_solve4temp
1256    o pkg/exf:
1257      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1258      - correct Stefan-Boltzmann constant
1259      - new parameter for longwave surface emittance
1260      - separate some stuff from exf_bulkformulae into new routines  
1261        exf_radiation, exf_wind
1262      - add new parameters and constants: longwave emissivity for ocean, ice
1263        and snow, evaporation parameters over ice
1264      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1265        either wind from stress or stress from wind
1266    o pkg/thSIce:
1267    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1268    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1269       and THSICE_CALC_THICKN
1270    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1271    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1272      to make debugging easier.
1273    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1274    o pkg/bulk_force:
1275      - clean-up comments and parameters ;
1276      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1277    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1278      generate new output for test-experiment: aim.5l_cs.thSI
1279    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1280      testreport accordingly
1281    
1282    checkpoint58e_post
1283    o SEAICE_CGRID adjoint done
1284    o R_STAR adjoint implemented.
1285      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1286      * need to sort out init. of h0facc, etc.
1287    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1288      to be able to use it in pure forward.
1289    
1290    checkpoint58d_post
1291    o upgrade simple test-experiment to tutorial example:
1292     step.1: duplicate the experiment and (step.2) will remove the old copy.
1293      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1294      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1295      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1296      tutorial_global_oce_biogeo    <- copy of dic_example
1297      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1298      tutorial_plume_on_slope       <- copy of plume_on_slope
1299      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1300      tutorial_global_oce_optim     <- empty for now (David ?)
1301      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1302     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1303    o correct a sign problem in cost_scat.F
1304    o obcs and ptracers: fix boundary conditions for advections schemes
1305      with larger stencil
1306    o thsice adjoint: start
1307    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1308      completeness
1309    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1310      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1311    o ptracers adjoint:
1312      * avoid extensive recomputatations
1313      * fix missing re-init. of gptr (missed by TAF)
1314    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1315      me to turn off the excessive output to STDOUT that this package produces
1316    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1317      and add those terms in Vector-Invariant formulation.
1318    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1319      if the control period (xx_hfluxperiod etc) is 0
1320    o in profiles pkg, clean routines and fix details
1321    o in ecco pkg, reading ssh data:
1322      fix problem in case the model does not start at iter0=0
1323    o fix mnc-pickup/restart for ptracers
1324    o new package prifiles:
1325      code to compute profile-based cost by Gael Forget
1326      (modifs in ecco, ctrl, autodiff)
1327    o Benign bug fix in initialization (spotted by M. Mazloff) of
1328      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1329    
1330    checkpoint58c_post
1331    o adjoint: finish NLFS adjoint and provide reference output in
1332      verification/global_ocean.90x40x15/results_ad_nlfs
1333    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1334      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1335      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1336      with SEAICE_CGRID defined.
1337    o move calendarDumps from "data" to "data.cal" and clean-up the code
1338      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1339    o add useEXF & useCAL flags (for now, set in hard-coded way)
1340    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1341      (were missing in NH mode, and wrong in quasihydrostatic mode).
1342      waiting for Chris updated version of calc_gw to add those CALLs.
1343    o fix bug in quasihydrostatic S/R ;
1344      add a test for this option: global_ocean.90x40x15.qshyd
1345    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1346      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1347    o add on/off flag useOffLine for package OFFLINE
1348    o seaice:
1349      - modify advection so that it works also on the C-grid
1350      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1351        problem in multi-tile runs with C-grid
1352      - add flags for clipping ice velocities and/or masking solver forcing
1353      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1354        C-grid solver
1355      - added a few comments to seaice_diffusion.F
1356      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1357        are now exclusive)
1358      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1359        required re-ordering the code a little:
1360       + make DAIRN global variable (defined in SEAICE)
1361       + move computation of the viscosities eta and zeta into a new separate
1362         routine (because I need to recompute them in seaice_ocean_stress.F)
1363    
1364    checkpoint58b_post
1365    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1366      update output.txt of exp. aim.5l_cs.thSI
1367    o various mnc cleanups and improvements:
1368      + shrink lookup tables by factor of ~4
1369      + better error reporting when running out of lookup space
1370      + able to handle longer path/file names (up to 500 chars)
1371    o adjoint:
1372      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1373      - TBD: "hidden" mom_vecinv recomp. in dynamics
1374    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1375     (allow to differentiate between forcing components using new integer flags:
1376      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1377     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1378    o ecco
1379      - enable trend removal from SSH anomaly obs.
1380    o adjoint
1381      - a fix for PmEpR when #undef EXACT_CONSERV
1382      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1383      - try to fix "hidden" recomp. in forward_step for NLFS
1384        (NLFS seems broken sometimes after I checked it in)
1385    o seaice:
1386     - add c-grid version of the dynamic solver:
1387       + three new routines that are the c-grid substitute lsr, dynsolver
1388         and ostres
1389       + put a few fields that were local to dynsolver into global common
1390         blocks, so that I can move the computation of stresses etc into
1391         seaice_lsr (saves coding but may break the adjoint).
1392     - replace more hardwired parameters by runtime parameters
1393     - add ice masks that mask the rhs of the implicit solvers where there
1394       is no ice (commented out in seaice_dynsolver, because i am not sure
1395       if this works properly), eventually this should replace the clipping
1396       of ice velocities in seaice_dynsolver to +/-40cm/s.
1397    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1398      include it only where its needed
1399    o move balancing of fluxes before the call of external_forcing_surf
1400    o seaice:
1401      - correct units of turning angles (now they are really in degrees)
1402      - move computation of GWATX/Y out of main routine into dynsolver
1403      - initialize GWATX/Y in seaice_init
1404    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1405      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1406    o seaice: add runtime flags for turning angles (default to zero)
1407    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1408      and trend from exf forcing and ctrl control adjustments
1409    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1410      (since checkpoint57x_post)
1411    o change the default rotation period to 86164.s = the Earth rotation
1412    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1413      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1414    o seaice advection: add code for choosing between the default (2nd order
1415      central differences) and multiDim advection schemes provided by
1416      pkg/generic_advdiff
1417    o seaice:
1418      - removed all references to SEAICE_GRID.h fields from
1419        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1420        (cubed-sphere configuration will change a little)
1421      - grid computations in seaice_init are obsolete now.
1422      - cleaned up code a little so that is easier to read (hopefully).
1423      - added new (better?) discretizations of default advection and diffusion
1424        (turn on with SEAICEuseFluxForm)
1425      - replace 1 in 3d global fields by kSurface in growth.F
1426      
1427    checkpoint58a_post
1428    o seaice:
1429      - bug fix in advect.F
1430    o shelfice:
1431      - separate shelfice load anomaly from pload (breaks with time
1432        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1433        Its default is 0., but it may be computed more cleverly from (unknown)
1434        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1435        done offline. A good approximation of the pressure load anomaly is
1436        necessary to avoid large initial adjustment processes underneath
1437        deep-reaching shelfice.
1438      - small fix in ISOMIP shelfice_thermodynamics
1439      - add more sophisticated thermodynamics of Hellmer (1989), this is
1440        now the default
1441      - give a few constants more intuitive names
1442    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1443      if bulk formulae are used in long integration (especially EmPmR). Turn
1444      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1445      if balancePrintMean, the imbalance that is substracted is printed to
1446      STDOUT.
1447    o fix bug (typo) in obcs_apply_eta.F
1448    o add a new package shelfice which enables us to model the circulation
1449      underneath shelf-ice with draughts of hundreds of meters.
1450     - works
1451     - to do: + include improved thermodynamics
1452              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1453                instead of new field kTopC
1454              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1455                instead of new field R_shelfIce and new code in ini_depth.F
1456                and ini_mask_etc.F?
1457              + adjust vertical mixing schemes?
1458    o seaice pkg:
1459     - add a cpp-flag to include a simple formula for a salinity dependent
1460       freezing point of sea water at the surface
1461     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1462       meridional stresses are now different (and hopefully correct)
1463    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1464       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1465       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1466    o pkg/diagnostics: add options and parameters for regional-statistics
1467       diagnostics ; define regions by reading a region-mask from a file
1468       (might add other options later)
1469    o pkg/bulk_force:
1470     - add option and parameters to use AIM surface-flux formulae.
1471     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1472       others forcing fields (defined in PARM05, parameter file "data") are loaded
1473       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1474     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1475     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1476     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1477       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1478     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1479    
1480    checkpoint58
1481    o add "--embed-source" option to genmake2 which, when the supporting
1482      tools can be compiled (as determined by genmake2) will turn on the
1483      embed_files package which then embeds the entire MITgcm source code
1484      (*.[fFhc] + Makefile) used for the build within the executable
1485      - requested by CNH but off by default
1486      - adds a paltry <9MB to the mitgcmuv executable in most cases
1487      - only writes the output when useEMBEDSRC in eedata is true
1488    o clean up 3-dim. relaxation codes:
1489      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1490      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1491      * Thanks to Tom Haine for testing!
1492    
1493    checkpoint57z_post
1494    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1495      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1496    o fix the pickup behavior for obcs in combination with ptracers
1497    o fix a bug in ptracers_external_fields_load
1498    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1499      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1500    o transfered surface NH pressure to eta field (if exactConserv).
1501    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1502         and update lab_sea output.txt file.
1503    o completing 3-dim. relaxation code: additional term
1504         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1505      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1506      * At compile time, in "EXF_OPTIONS.h" set
1507          #define  ALLOW_CLIMTEMP_RELAXATION
1508          #define  ALLOW_CLIMSALT_RELAXATION
1509      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1510          tauThetaClimRelax3Dim = 15552000.0,
1511          tauSaltClimRelax3Dim  = 15552000.0,
1512      * 3 cases:
1513          1) Use a constant-in-time 3-dim. field
1514          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1515          3) Real-time relax. to time-evolving prescribed field
1516    o Adding Laplacian-type smoothness constraint on
1517      initial and boundary (forcing) controls (ic, bc)
1518      * enable at compile-time via
1519        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1520      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1521      * Absolute scale somewhat unclear so far
1522      * no area weighting was included since no other cost term does so far
1523    
1524    checkpoint57y_post
1525    First step for a NLFS adjoint
1526    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1527    o new init. routines for calc_r_star, calc_surf_dr
1528    o still need to deal with ini_masks_etc
1529    o testreport seemed happy
1530    checkpoint57y_pre
1531    
1532    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1533    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1534    o add new offset feature to offline pkg (plus minor cleanup)
1535    o cfc fixes for final year of integration
1536    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1537      be in GCHEM_OPTIONS).
1538    
1539    checkpoint57x_post
1540    o fix testreport Pb in multiple test experiment.
1541    o cleanup our namelist syntax in verification:
1542      - make it more F95 standards compliant (some work still needed)
1543      - allows the vast majority of our tests to work with gfortran
1544    o Non-Hydrostatic:
1545     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1546     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1547    o Allow to apply AB on T,S rather than on AB(gT,gS):
1548     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1549     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1550       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1551     - need a "clever" read_pickup to restart from the other AB formulation
1552    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1553    o remove some unused variables (reduces number of compiler warnings)
1554    o adjoint
1555      * Disable useVariableViscosity for adjoint for time being
1556        (there are a number of extensive recomputations)
1557      * Initialize certain variables needed for adjoint
1558    
1559    checkpoint57w_post
1560    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1561                 fix the singleCpuIO RS version of MDSWRITEFIELD
1562       and add a WARNING if using globalFiles=T with multi-processors.
1563    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1564      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1565    o tracer advection scheme:
1566      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1567       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1568       was not very convenient).
1569      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1570       (further tests needed for the implicit DST & Flux-Limiter schemes).
1571    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1572      and sRef for convenience, handy, when you want to initialize
1573      ptracers in a large domain with a constant non-zero value. Also,
1574      untangle ptracers_init.F a little.
1575    
1576    checkpoint57v_post
1577    o change dome exp. to use variable viscosity in side-drag terms.
1578    o remove all the files from the cfc_offline test since they are now
1579      incorporated into tutorial_cfc_offline which has been producing
1580      identical results for a few days of testing
1581    o add new parameter: sideDragFactor to enable half-slip-side BC
1582      and change side-drag S/R to use viscosity from mom_calc_visc
1583      (can switch back by setting sideDragFactor=0.); affects results at
1584      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1585       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1586    o vorticity & strain are now computed without masking, to account for
1587      no-slip-side BC in variable viscosity calculation ; mask is applied
1588      anyway later on, before computing advection/coriolis terms.
1589    o modify exp4 to test new obcs support for reading from external files
1590      and for passive tracers
1591    o fix behavior of ptracers_monitor when monitor output is written to a
1592      netcdf-file; still not independent of monitor.F (writes in the same
1593      file).
1594    o change default value of tRef (put a uniform, meaningful value for ocean
1595      & atmos) and initialize sRef (was missing, as Martin mentioned).
1596    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1597      to be proportional to enstrophy dissipation length.  Thus,
1598       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1599      This is now consistent with Smagorinsky and with the manual.
1600    
1601    checkpoint57u_post
1602    o OBCS and PTRACERS: add open boundary support for passive tracers
1603      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1604        OB-values from file; this is not different from the way theta and salinity
1605        are treated
1606      - however, Orlanski-radiation conditions are not supported, and the model
1607        will stop if you use pTracers and Orlanski at the same time.
1608      - beefed up the rountine obcs_external_fields_load: now only those open
1609        boundary values are overwritten with values from files for which there
1610        are really files, otherwise the OB-fields remain untouched. This makes
1611        it possible to use different OBs at different ends of the domain (as
1612        with EXF)
1613    o reduce number of exch calls in shap_filt (s2).
1614    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1615      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1616    
1617    checkpoint57t_post
1618    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1619    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1620      same truncation, independent of the face number: affects affects several
1621      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1622    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1623      note that biharmonic viscosity + no-slip was not tested in any experiment.
1624    o fix bug in non-linear free-surf side-drag ; generate new output for
1625      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1626    o make mnc honor the writeBinaryPrec flag for most kinds of output
1627    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1628    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1629      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1630    o add brackets in multi-terms sum to get same truncation, independent of
1631      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1632      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1633    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1634      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1635      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1636      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1637      Suggested values of viscosity parameters found in mom_calc_visc.
1638      Many new viscosity diagnostics available.
1639    
1640    checkpoint57s_post
1641    o Add clearing-house for viscosity calculations, mom_calc_visc and
1642      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1643      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1644      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1645      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1646      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1647      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1648      ViscAhStrain and viscAhTension are now retired.
1649    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1650    o In response to JMC's bug report, genmake2 now ignores any soft-links
1651      that it finds in the *current* directory when searching for files.
1652      Soft-links found in any other source directories will still work as
1653      they did before.
1654    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1655      a C routine to unlimit the stack size
1656    o mnc-ify pkg/aim snapshot vars
1657    o mnc-ify pkg/land as requested by Daniel
1658    o various changes to mnc including:
1659      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1660      - output can now be grouped so that all files within a group
1661          change the ITER portion of their names in lock-step together
1662      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1663          and works with both EXCH1 and EXCH2 (but needs more testing)
1664      - writing works for all verification test cases w/ g77 on Linux
1665    
1666    checkpoint57r_post
1667    o make MNC variable initialization happen earlier
1668    o add diagnostics for (almost) each term of the momentum Eq.
1669    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1670    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1671    o remove MINIMAL_TAVE_OUTPUT option ;
1672      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1673    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1674      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1675    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1676    o add time-dependent SST, SSS control
1677    o cost terms in ecco/ modularized (new cost_generic.F)
1678    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1679    o new infrastructure for seaice model vs. obs misfits in seaice/
1680      * driver from the_main_loop.F is seaice_cost_driver.F
1681      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1682      * gradient check in Exp. 6a of natl_box_adjoint/
1683    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1684      (see README file)
1685    
1686    checkpoint57q_post
1687    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1688    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1689      - bug was reported by Jean-Michel and Ian Fenty
1690    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1691      update exp. cpl_aim+ocn output.
1692    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1693      Needed for high-res. runs with large global files
1694      to be able to limit tapelev size
1695    o Changed some tests for adjoint:
1696      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1697      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1698      * global_ocean.90x40x15/ back to default 3-level checkpointing
1699    o Modifications to enable scripted COMMON to MODULE conversion
1700      * verification/OpenAD/code/ has necessary scripts and description;
1701      * converts, compiles and runs successfully;
1702    
1703    checkpoint57p_post
1704    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1705    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1706      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1707    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1708    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1709      (was already the case for dissipation with mom_vecinv,
1710       and also the case for grad.PhiHyd when staggered-timeStep)
1711      This will allow to put dissipation out-off the AB time-stepping.
1712     Unfortunately, affects truncation error. Update output of exp. that "fails"
1713      (cg2d matching number) and leave the others for later: front_relax(10),
1714      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1715      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1716    
1717    checkpoint57o_post
1718    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1719      (2) its ready to be documented during the 20050801 DocFest
1720    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1721      for ideal_2D_oce and lab_sea on linux_ia32_g77
1722    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1723      in global1x1_tot/code_seaice_adj to access indices 32, 33
1724      (worth another tag)
1725    
1726    checkpoint57n_post
1727    o adding precip control xx_precip 32
1728    o adding swflux control xx_swflux 33
1729    o Replacing 10 forcing penalty cost routines by 1 generic.
1730    o Implementing partitioning in time-mean and variable adjustment
1731      for atmos. state.
1732    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1733  o in natl_box_adjoint:  o in natl_box_adjoint:
1734    * updated: results_bulk/    * updated exp 1 to 10
1735    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
1736    o updated global1x1/*_seaice_adj/
1737      to incorporate latest changes
1738    o enable useSingleCpuIO for mdsio vector routines
1739      (applies in particular to tapelev I/O)
1740    o removed inefficient K-loop in all active_file*control*.F
1741    
1742  checkpoint57m_post  checkpoint57m_post
1743  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)

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