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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.1035 by mlosch, Mon Oct 27 05:16:06 2008 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 fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
8  o moved ptracer ctrl index 17 -> 32    (#undef REAL4_IS_SLOW)
9     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
10       coordinate variable
11     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
12       (surface forcing fields), removes some of the functionality
13     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
14     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
15       probably not all: copy _RS surface flux fields to RL field before
16       calling DIAGNOSTICS_FILL
17     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
18       real*4 (CALL EXCH_*_RS) versions.
19    
20    checkpoint61e
21    o gmredi (Visbeck-variable-K):
22      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
23      - change computation of Visbeck-K where Slope > Smax :        
24        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
25        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
26    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
27      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
28    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
29    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
30      does not become too large (to avoid precision problems in implicit-diffusion
31      solver); update ideal_2D_oce output.
32    o pkg ggl90:
33      - in ggl90_cal.F: compute only one set of visc/diff, used to
34        step forward TKE/T/S/momentum
35      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
36        have Prandlt =1)
37    o gmredi (fm07):
38      - add lower limit on Transition layer thickness + lower limit on 1/lambda
39      - allow to set few more params from data.gmredi
40    o pkg ggl90:
41          - add missing sqrt(2) factor in computation of mixing length
42            scale in ggl90_calc.F
43            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
44    
45    checkpoint61d
46    o adjoint modifs
47      - adapt to new field rhoInSitu
48      - allow to revert from StoreDynVars2D, StoreDynVars3D
49        to individual fields
50        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
51    o store 3-D (in-situ) density in commom block (DYNVARS.h)
52     - save 1 rho computation.
53     - no longer modify T & S inland when using down_slope pkg.
54    o gad_som : allow to switch to SOM advection for T & S without corresponding
55      pickup files (using new S/R: MDS_CHECK4FILE).
56    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
57      (for useSingleCpuIO to work in multi-threaded)
58    o pkg/shelfice:
59     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
60       with SHELFICEtopoFile in data.shelfice
61     - move code for reading ice shelf topography and modifying hFacC into separate
62       subroutines of the shelfice package
63     - separate initialisation of "fixed" and "variable" variables
64     - kTopC is not (yet) replaced by kSurfC, although this is possible
65    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
66    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
67      and rename:
68      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
69      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
70    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
71    
72    checkpoint61c
73    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
74      to add mass source/sink of fluid in the interior (3-D generalisation
75      of oceanic real-fresh water flux).
76    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
77    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
78    o new pkg: down_slope
79      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
80      - presently, modify T & S inland (dwnslp_calc_rho.F).
81        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
82      - implementation for ocean in P-coords not tested.
83      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
84    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
85      (to facilitate conversion of oceanic pkg to p-coordinate).
86    o change FIND_RHO to FIND_RHO_2D :
87      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
88    o new pkg: cheapaml
89    
90    checkpoint61b
91    o exch2:
92      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
93      - no longer depend on the order sequence (N,S,E,W).
94      - 3rd exchange no longer needed (tested with 24 tiles).
95      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
96      - exch_UV_A-grid readily available (but not yet tested).
97      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
98      (both are no longer needed) in exch_uv: no effect in forward run; but
99       get truncation error differences with adjoint exch.
100    o exch2:
101     - change index-bounds storage (moved from target to local tile,
102       more intuitive this way) ; rename/remove some variables.
103     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
104    
105    checkpoint61a
106    o exch2/matlab-topology-generator:
107      fix bug in index bounds for N-S internal exchange (hard to tell if this
108      had any effect on the solution).
109    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
110      is exceeded
111    o testreport: modify syntax of awk, so that it works also with
112      awk, and not only with nawk and gawk
113    
114    checkpoint61
115    o autodiff
116      Change default for TAF usage by removing argument '-nonew_arg'
117      This changes TAF subroutine argument list (ordering of active var.)
118      Omission of this flag leads to incompatibility w.r.t. TAMC
119      To restore TAMC-compatibility, need following modifs:
120      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
121      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
122      Tested TAF version is 1.9.22
123      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
124    
125    checkpoint60
126    --->>> This is the last checkpoint for which generating the adjoint
127    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
128    --->>> by default.
129    --->>> Future checkpoints will ommit this flag by default.
130    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
131    o pkg/grdchk: Add gradient check to etan0 perturbations.
132    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
133    o pkg/autodiff: more flexibility in zeroadj.
134      model/src: modifying do_oceanic_phys.F accordingly.
135    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
136    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
137      special setup of gmredi for which the adjoint is stable
138      enough for parameter optimization.
139    o bridging the gap between eddy stress and GM.
140      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
141          along with a change in CPP option (now ALLOW_EDDYPSI).
142      -> when using GM w/ GM_AdvForm:
143          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
144          is applied either in the tracer Eq. or in momentum Eq.
145          depending on data.gmredi (intro. GM_InMomAsStress).
146      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
147      The key modifications are in model/src/taueddy_external_forcing.F
148      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
149    
150    checkpoint59r
151    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
152      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
153      fix option to read coriolis(@ cell-corner) from files with CS-grid.
154    o pkg/mnc: add some attributes to standard 1D-coordinate variables
155    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
156      mass points, when using mnc for output
157      - add runtime parameter (missing_value, missing_value_int) to override
158        default (which is the value of getcon('UNDEF'))
159    o pkg/mnc: prepare mnc for the actual use of missing values with the
160      diagnostics package: small fix in mnc_cw_readwrite.template and more
161      initialisation of never used fields
162      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
163      versions
164    o pkg/thsice/thsice_ini_vars.F added default initial values so that
165      thermodynamics sea ice solver does not blow up when some initial fields
166      are missing.
167    o move from external_forcing_surf.F to ini_forcing.F
168      the p-coord. hack consisting in using pLoad to set phi0surf ;
169      update output of tutorial_global_oce_in_p (affected @ truncation level).
170    o Freshen up a bit hs94.1x64x5, notably:
171      remove rotationPeriod and tRef=5*0. (adjoint only), and add
172      exactConserv=.TRUE.
173    o pkg/generic_advdiff:
174      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
175      applies to files where Temperature & Salinity 2nd Order moments are used.
176    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
177      this uses a dynamically allocated internal state data structure
178      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
179      and requires a fortran 90 compiler
180    
181    checkpoint59q
182    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
183       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
184    o Refresh tutorial_global_oce_biogeo, notably:
185      - change bathymetry (put back seamounts in ACC, use hFacs)
186      - change EOS (POLY3 --> JMD95Z)
187      - use Bryan-Lewis vertical diffusivity
188      - use multidimensional advection
189      - remove old virtual virtual in dic pkg, now done through ptracer pkg
190      - change a couple of parameters in dic pkg
191    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
192    o pkg/obcs: change default to OBCSfixTopo = .true.,
193      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
194      - replace "debugMode" with "debugLevel .GE. debLevB"
195    o implementation of TAF directives for gchem,cfc,dic
196    o remove "exp5" (replaced by tutorial_deep_convection).
197    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
198      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
199      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
200      --> changes results in exp4, seaice_obcs
201    o tutorial_deep_convection :
202      update the set-up and increase resolution and domain size ; start
203      from pseudo initial conditions = output at t=120mn in order to see
204      something happening when running testreport.
205    o pkg/seaice: add os7mp as an advection scheme
206                  add check for advection schemes
207                  add a flag for restoring T and S underneath sea ice
208    o pkg/my82: add netcdf-support and diagnostics
209    o thsice pkg:
210      - Now hsMax limits snow height by turning it into ice following
211        flooding scheme (and now conserving energy)
212      - Slight rewriting of the formula in thsice_calc_thick.F
213      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
214      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
215    
216    checkpoint59p
217    o gchem / dic / cfc :
218      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
219      - add new parameter files: "data.dic" & "data.cfc" ;
220      - various re-arrangement in initialisation & header file ;
221      - fix tutorial_global_oce_biogeo for multi-threaded test.
222    o pkg/dic: test for "pickup_dic" file when restarting ;
223      if no pickup-file, can restart with a re-initialised pH (same as it did
224      before) providing pickupStrictlyMatch is set to False.
225    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
226      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
227    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
228      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
229    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
230     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
231       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
232    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
233       scheme to use for vorticty-term ;
234     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
235       (with default selectVortScheme, return to original discretisation)
236     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
237    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
238    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
239      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
240      also fix diagnostics VISCAHW & VISCA4W.
241    
242    checkpoint59o
243    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
244    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
245      move a few statemens out the main loop into separate loops
246    o pkg/shelfice:
247      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
248        (kg/m^2/s), does not break tests, because in verification/isomip,
249        rhoConstFresh=rhoConst (by accident)
250      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
251      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
252        new file model/src/seawater.F, so that they are available for all pkgs.
253      - convert potential temperature into in-situ temperature. This changes the
254        isomip tests => update tests
255    o add a flag writePickupAtEnd (default=true) to be able to suppress
256      writing a pickup at the last timestep
257    o tools/mpack-1.6 :
258      - disable automake (not working) and autoconf (not needed).
259      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
260        also cleaner with much less compilation warnings.
261    o pkg/profiles:
262      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
263      (for "less than 32 characters name" compiler requirement)
264    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
265      conditions that have a different sampling frequency than S/T/U/V obcs
266    o pkg/diagnostics (stats-diags):
267      - fix global Min/Max in case 1 processor get only empty tiles
268    o genmake2: replace (4 times)
269         make genmake_tc_1.o >> genmake_warnings 2>&1
270      with
271         COMM="$CC $CFLAGS -c genmake_tc_1.c"
272         echo $COMM >> genmake_warnings
273         $COMM >> genmake_warnings 2>&1
274      to make genmake2 always see the value of CC as specified in the optfile.
275    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
276      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
277      - modify verification advect_cs test to test SOM-advection on CS-grid.
278    o pkg/ctrl:
279      - Rewrite of ctrl_map_ini_ecco.F,
280        introducing a generic routine (ctrl_map_ini_gen.F).
281      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
282    
283    checkpoint59n
284    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
285      number in dedicate array "hdiag":
286      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
287        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
288      - many small changes (integer format) for large number of diagnostics
289      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
290        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
291    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
292      usingSphericalGrid, this allows to define the rotated grid coordinates
293      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
294      geographical coordinates according to the inverse of the rotation defined
295      by the Euler angles, so that Coriolis parameter and online-interpolation by
296      exf works with the geographical coordinates on XC/YC/XG/YG.
297      Naturally, this feature does not work with all packages, so some
298      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
299      profiles), because there the coordinates are assumed to be regular
300      spherical grid coordinates.
301    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
302      - introduce isopycnal diffusion coefficient control.
303    o tools/adjoint_options:
304      - additional control vector components.
305    o pkg/mnc: have mnc create marginally meaning full coordinate variables
306      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
307    o pkg/mypackage:
308      - add example of read/write pickup for state-var ;
309      - add entry points to the main code for state-vars diags & write-pickup.
310    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
311      transitions for useExfYearlyFields
312      - add new subroutine that determines the file to read from for
313        use*YearlyFields = .TRUE. and .FALSE.
314      - add a verification experiment to global_with_exf that tests
315        useExfYearlyFields with USE_EXF_INTERPOLATION defined
316    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
317      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
318      subroutines (which could be generated from a template, because they are
319      almost identical), for now they are included in obcs_prescribe_read.F for
320      simplicity
321    o pkg/exf:
322      - add a little more diagnostic to exf_interp_read (in analogy to
323        mds_read_field, can be turned off with debugLevel < debugLevA=1)
324      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
325        ugly but fast by unrolling short inner loops, inserting a unroll=8
326        directive in routine lagran, and splitting a loop and making do while the
327        outermost loop (the latter requires the intoduction of index arrays)
328    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
329    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
330      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
331    o verification/seaice_obcs: updated for restart test and latest options
332    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
333      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
334      for now this is only available for the C-grid code and also within
335      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
336    
337    checkpoint59m
338    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
339      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
340    o gad_som : fix flux output (& diagnostics) to have same units as other  
341      advection scheme fluxes (was previously multiplied by deltaT).  
342    o added verification/seaice_obcs both to test seaice open boundaries
343      and to provide an example matlab scrpt for generating them
344    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
345    o pkg/salt_plume: clean up salt_plume_frac.F to
346      remove redundancy in PlumeMethod 1 and 4
347    o pkg/kpp: added saltplume diagnostics
348    o pkg/obcs and pkg/seaice:
349      - do not set uice and vice to zero when OB*icefile are unspecified
350      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
351      - moved seaice tracer obcs after call to seaice_growth
352    o pkg/salt_plume: added various options for salt plume depth
353      criterion and for vertical distribution of the salt
354    
355    checkpoint59l
356    o pkg/ptracers: new version of ptracers pickup:
357      read meta file and write only fields which are needed to restart.
358      ( same logic as main pickup file ; also using pickupStrictlyMatch )
359    o pkg/seaice:
360      - add timescale for melting due to warm mixed layer as a means of
361        setting SEAICE_availHeatFrac more conveniently
362      - add a CPP-flag/runtime parameter check for flooding algorithm
363      - reformulated availHeat in seaice_growth.F to be independent of AREA
364    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
365      unit changes
366    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
367    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
368      SX vector computer.
369    o pkg/seaice:
370      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
371        seaice forcing fields can now be read only through pkg/exf
372      - removed some unused halos
373    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
374    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
375      or U/VICE from U/VWIND before computing U/VSTRESS
376    
377    checkpoint59k
378    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
379      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
380    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
381      all experiments pass when compile with un-initialised var. checking option.
382    o added pkg/salt_plume
383    o script to test restart (for now, in MITgcm_contrib/jmc_script)
384    o pkg/seaice: new read/write pickup version.
385      read meta file and write only fields which are needed to restart.
386      ( same logic as main pickup file ; also using pickupStrictlyMatch )
387    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
388    o lab_sea.hb87: modify the domain & update output.hb87.txt :
389      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
390      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
391      process. Fixed here by closing the domain at the Northern boundary.
392    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
393    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
394      a set of consecutive levels in/from a 3-D array.
395    o pkg/ptracers:
396      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
397      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
398    
399    checkpoint59j
400    o in pkgs: dic, obcs, offline, rbcs:
401      standard way to compute coeff. for time interpolation between 2 time reccords
402      which retains full precision (& make results less dependent on compiler).
403      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
404    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
405      packages instead of reading ice cover and wind speed separately
406    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
407     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
408      to allow to compile customized code before the update)
409    o cleaning-up:
410      - fix CPP instruction syntax in pkg/obcs
411      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
412        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
413      - fix some threads issue in IO parts.
414    o pkg/dic:
415      - add tons of "_d 0" (--> much better testreports !)
416       and then update outputs of tutorial_global_oce_biogeo
417    o pkg/mom_fluxform:
418      add a special version of momentum advection intended to conserve momentum
419      next to a bathymetry step or a coastline edge. (default = off = #undef)
420    o new read/write pickup version:
421      - for now, only implemented for main (mdsio) pickup file.
422      - write out only what is needed to restart; merge pickup_nh , pickup_ph
423        and main pickup together.
424      - read meta file; read only what is needed to restart; stop if a field
425        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
426        if it make sense (even if the restart is not perfect).
427      - if no meta file, assume that pickup to read corresponds exactly to
428        a pickup that would currently be written.
429      - read pickup written in the old format (until checkpoint59i) if it
430        recognizes an old meta file (no field-list).
431      - add a meta file in exp. which starts from a pickup: 2 cases:
432        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
433         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
434        b) a meta file describing the content of the associated pickup file
435         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
436    o pkg/mdsio & pkg/rw:
437      - new routine to read a meta file ; new set of routine to read
438        Multiple-fields file (with meta file).
439    o added open boundary conditions capability for seaice
440        HSNOW, HSALT, UICE, and VICE
441    
442    checkpoint59i
443    o adjoint:
444      * fix multiDimAdvection adjoint
445        (partial recomputation problem by TAF for fVerT(:,:,kDown)
446        and comlev1 size definition (maxpass vs. max. number of tracers)
447      * verification/global_ocean.90x45x15 adjoint now tests
448        NLFS and multiDimAdvection using DST3 (=30)
449      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
450    o pkg/kpp: add "_d 0" to real constant (if missing);
451      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
452      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
453    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
454      for internal parameters related to restart process (formerly from PARAMS.h)
455      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
456    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
457      as argument. (only atm2d & obcs write_pickup have not yet been updated)
458    o pkg/monitor:
459      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
460      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
461      - account for deep Atmosphere factor and density factor (anelastic)
462    o added open boundary conditions capability for seaice HEFF and AREA
463    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
464      thermodynamics
465      - requires a little reorganization, which affects the testreport results
466        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
467        so that now the conservative form is tested
468      - add a few comments
469    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
470    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
471    o add new diagnostics to seaice: advective, diffusive fluxes (only for
472      multidim-advection, for scheme 2 they are not filled) and transports,
473      thermodynamic growth rates
474    o change units of EmPmR (inside the code, + within coupling interface)
475      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
476      Affects results @ truncation level (cg2d match) and update output of
477       experiments: lab_sea(6), global_ocean.90x40x15(10),
478      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
479      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
480      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
481      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
482    
483    checkpoint59h
484    o pkg/exf:
485      - improve vectorization by moving if-statement out of loops in
486        exf_mapfields, exf_radiation
487      - exf_bulkformulae.F: introduce 2D fields and vectorize code
488    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
489    o testreport:
490      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
491        monitor & update offline_exf_seaice exp. output.
492      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
493    o pkg/seaice:
494      - bug fix in the evp solver: boundary conditions were affected be
495        masking of zMax/zMin (changes results)
496      - minor bug fix in boundary conditions in seaice_calc_strainrates
497        (changes results for no_slip)
498      - seaice_lsr.F: make interpolation of eta dependent on boundaries
499      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
500      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
501        stress formulation and no-slip boundary conditions
502    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
503      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
504    o pkg/seaice: a first HSALT time stepping equation has been checked in
505    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
506      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
507      without requiring DO-IF statements
508    o pkg/thsice:
509      use continuous power-law function for partition of energy between lateral
510      melting/freezing and thinning/thickening ; old code using step function
511      still available with #undef THSICE_FRACEN_POWERLAW
512      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
513    o testreport: change AD testing : check against results/output_adm.txt
514      using same scripts as for forward test.
515    
516    checkpoint59g
517    o adjoint testing: in preparation for changing testreport:
518      - output format: cost and grad written on separated lines
519      - ad output results in directory "results" (instead of "results_ad")
520    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
521    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
522    o pkg/ecco: allow user defined cost function contributions
523    o testreport:
524      Allow to choose (per experiment) the list of tested output variables
525       and the main variable (used to issue a pass/FAIL ) ;
526      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
527      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
528      Also modify printing of summary:
529       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
530       b) echo the list of tested variables in the individual summary.txt of
531          each experiment.
532    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
533      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
534      (but still depend on the tile decompostion of the domain).
535    o pkg/seaice: change a discretization detail to make the B-grid code
536      "more symmetric". This change is likely to remove all "ridges/leads" that
537      where quasi-aligned with the grid in B-grid solutions. It may also be
538      the solution to the stress coupling issues with the B-grid.
539    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
540      remove .cvsignore from input dir. (since testreport no longer run here).
541    o pkg/thsice:
542     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
543     - fix reshaping of sea-ice just after advection:
544       melt all the ice only if ice-volume is too small.
545     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
546       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
547     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
548    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
549      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
550    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
551      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
552      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
553      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
554      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
555      -> update output.txt
556    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
557     this affects truncation error: -> update output.txt of exp:
558      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
559      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
560    
561    checkpoint59f
562    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
563    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
564      a bounded range (in forward mode)
565    o pkg/ecco, ctrl, autodiff and mom_common:
566     internal parameter controls, completements of implementations
567    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
568    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
569      (not seem any difference in testing results).
570    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
571       at face corners.
572    o pkg/generic_advdiff:
573     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
574      loop range indices for computing vertical advection tendency
575      and do the calculation in the interior only (no overlap) ;
576      for now, only implemented for SOM advection (to save CPU time).
577     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
578    o exch2 adjoint
579      First set of changes:
580      - add exch2 hand-written adjoint templates
581      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
582        This will require cleanup in pkg/autodiff/*.F
583        (changed routines currently kept separate in verif. code/)
584      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
585        that used to hide exch2 or cubed-sphere specific code
586        (commented via 'cph-exch2')
587    o pkg/seaice
588      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
589    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
590       output of global_ocean.cs32x15.thsice .
591    
592    checkpoint59e
593    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
594      for B-grid vector (not yet tested) and C-grid vector (<- only used
595      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
596    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
597      (#ifdef ALLOW_SALT_PLUME)
598    o gather_2d/scatter_2d: removed halo regions
599    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
600      scheme and the corresponding test case (under front_relax dir). For now,
601      only available with Skew-flux form and not yet tested in realistic set-up.
602      adjoint: store directives updated, but gradient checks deteriorated,
603      so maybe GM/Redi adjoint is now broken.
604    o seaice adjoint
605      * add AREA, HEFF, HSNOW as control variable
606        (should not change lab_sea results)
607      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
608    o pkg/seaice:
609      * added computation of saltFlux in seaice_growth;
610        For time being, sea ice salinity is assumed constant
611        contribution of snow flooding to freshening of sea ice is neglected.
612        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
613        defaults to 0.0 in order to maintain backward compatibility.
614        Typical values for SEAICE_salinity are 4 to 10 g/kg.
615      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
616      * added SEAICE_availHeatFrac, which specifies fraction of surface level
617        heat content used to melt or grow ice
618      * commented out cap of HICE: it helps keep ice thinner
619      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
620      * applied OBCS T/S mask to HEFFM sea ice mask
621    
622    checkpoint59d
623    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
624     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
625     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
626    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
627     and change default value of parameter "GM_Small_Number";
628     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
629       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
630       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
631    o pkg/ecco: cost function when applying pkg/smooth to controls
632    o pkg/ctrl: add forcingPrecond run time parameter
633    o pkg/seaice:
634     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
635     - fix bug in metric terms of u-equation in LSR solver (implicit part),
636       changes verification/lab_sea
637     - rearrange implicit part of u-equation in LSR solver to make it easier to
638       read, understand, and debug. This causes changes at the truncation level.
639     - fix (serious) bug in the boundary conditions (sign error in the implicit
640       part) of the LSR solver. Changes all LSR results.
641     - fixed problem with HSNOW initialization to avoid thick snow when AREA
642       is initilized with small values - does not change lab_sea results.
643     - added HsnowFile initialization capability
644    o pkg/smooth: addition to model/src and pkg/ctrl so allow
645     initialization of pkg/smooth and application to control vector
646    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
647    o dependencies: pkg/profiles requires pkg/cal
648    o pkg/profiles:
649     - added option ALLOW_PROFILES_GENERICGRID
650         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
651         that interpolation information (grid points and coefficients) is provided
652         within the netcdf input files.
653         -> sample matlab scripts can be found in MITgcm_contrib/gael
654         that allow you to prepare netcdf input files.
655     - also modified: cleaner include statements, cleaner error print statements,
656       cleaner stops when error, and more tests of the netcdf input files consistency.
657    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
658    o pkg/seaice:
659     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
660       requires a new routine: seaice_diagnostics_fill.F
661     - make sure that seaice does not move if not forced (pressure replacement
662       method, Hibler and Ip, 1995), changes results
663     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
664     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
665       It is turned off by default (=-1.), because it changes the results.
666     - make it possible to read AREA from a file, too.
667    
668    checkpoint59c
669    o add S/R and diagnostics for oceanic mixed-layer depth
670    o move GMRedi call after all vertical mixing schemes (including KPP)
671    o pkg/thsice:
672     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
673      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
674    o pkg/obcs:
675     - bug fix for balance code
676    o pkg/seaice:
677      - allow values of SEAICE_elasticParm > 1
678      - add new parameter SEAICE_evpTauRelax as an alternative
679        to SEAICE_elasticParm
680      - make lsr boundary conditions free slip (by default), changes result
681      - add code for no slip boundary conditions for lsr
682      - set minimum of zeta to zero (and not 4e8) (changes results)
683      - add a cap on AREA after advecting AREA if seaice_growth is not called
684    o change calculation of Visbeck K:
685      - no longer depend on tapering scheme; instead, compute slope (limited
686        by GM_maxSlope). this is equivalent to what was comuted before with
687        clipping or linear tappering.
688      - fix vertical averaging (wrong by 1/2 level)
689      - leave the old version (but will not be maintained) within
690        #ifdef OLD_VISBECK_CALC / #endif
691      - update output of exp. ideal_2D_oce
692    o change error catch in calc_r_star to improve vectorization
693    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
694      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
695    o adjoint:
696      Re-organized adjoint checkpointing according to Matt Mazloff
697      (but with modifs/completions/cleanups)
698      Storing is now bundled into large arrays to optimized I/O
699      (and second step in cleanup of the_main_loop)
700    
701    checkpoint59b
702    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
703      - export/import (between ocean & coupler) fields needed for ocean DIC.
704    o pkg/seaice:
705      - get rid of three more exchanges seaice_calc_viscosities (required
706        different loop boundaries in seaice_lsr and seaice_ocean_stress)
707      - bug fix in seaice_ocean_stress (update of lab_sea required)
708      - reduce loop boundaries to necessary minimum also in seaice_evp
709      - go back to the old way of computing deltaC/Z as the adjoint likes that
710        better
711    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
712      passive tracer to an Age Tracer) + update output.txt
713    o pkg/exf:
714      - implement A-grid / C-grid selection for wind-stress input files.
715      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
716      for now, in exf_bulk_largeyeager04.F only :
717      - change implementation for case where windspeed + 2. components wind-stress
718        are read-in. AND use rhoConstFresh to convert evap.
719    o pkg/seaice:
720      - use correct EXCH_UV for wind-forcing (on A-grid).
721      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
722        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
723    o pkg/exf:
724      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
725      EXF_INTERPOLATION:
726      - merge global_with_exf/code version of exf_interp_read.F
727        to the main code ;
728      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
729        reading the file ; Important: This options needs to be defined to recover
730        previous code.
731        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
732      - no longer loose real*8 precision along the way when using exf_iprec=64.
733    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
734      - change discretisation of evp-solver in order to avoid another exchange
735        (changes lab_sea) and clean up a little
736      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
737        help the adjoint (this also changes the results slightly)
738      - add a few "_d 0" where they had been missing in seaice_evp.F
739      - cleaning up: remove unused seaice_calc_rhs.F
740    o pkg/exf: some cleaning-up:
741      - change various "constants" into runtime parameters
742      - cleaned-up Large&Yeager04 routine which should eventually
743        replace exf_bulkformulae.F (changed names of S/R and CPP)
744        and merged various ALLOW_ATM_WIND options
745     only used with thsice pkg (in thsice_get_exf.F):
746      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
747        which are used when useStabilityFct_overIce=TRUE (= the default)
748      - change default values of ice & snow emissivity and scale downward LW
749        by ice & snow emissivity.
750    o pkg/thsice:
751     fix few little problems, in thsice_calc_thickn.F:
752      - growth vertically (and not laterally) if iceFrac == iceMaskMax
753      - melt only laterally if hIce < hThinIce (as the comments say)
754      and in thsice_extend.F:
755      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
756      - start to form ice as soon as the minimum ice-volume is reachable.
757     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
758      and cpl_aim+ocn
759    o pkg/kpp
760     - move computation of surface related input fields to KPP into a new
761       subroutine kpp_forcing_surf.F
762     - remove wrong (within bi,bj loops) EXCH calls.
763     - little cleaning (add argument myThid in last position, cvs header ...)
764     - for now, fix conservation problem by exchanging KPPviscAz (may not
765       be the best fix)
766    o pkg/seaice
767     - check for inconsistent evp parameter/cpp-flag combination
768     - remove leftover errIO flat for obsolete name list error handling
769    o OpenAD
770     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
771    
772    checkpoint59a
773    o pkg/seaice: some parameter clarifications and a little bit of clean up
774    o pkg/thsice: rename run-time parameters:
775       himin       -> hIceMin
776       himin0      -> hThinIce
777       hihig       -> hThickIce
778       i0          -> i0swFrac
779       transCoef   -> bMeltCoef
780       frac_energy -> fracMelting
781      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
782       with default values (for now) that do not change the results.
783      remove old version of thsice vars advection in pkg/seaice.
784    o in FFIELDS.h:
785      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
786      - make pLoad & sIceLoad always available (but still only used if
787         ATMOSPHERIC_LOADING is #define).
788    o pkg/kpp: replaced _KPP_RL with _RL
789    o bug fixes for vertical diffusivity computations when both KPP and
790        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
791        are no longer updating the vertical diffusivity array
792        (passed as argument) but are (re-) setting those arrays.
793    o pkg/seaice: fix bug in evp solver, while doing that
794      - change (improve?) discretization of stress computations for both
795        cgrid-lsr and evp solver
796      - add a new routine to compute strain rates
797      - the above changes lab_sea results
798      - add no slip conditions for evp solver (off by default), lsr-version
799        may follow
800      - fix exchange for shear at Z-points (does not change lab_sea)
801      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
802        (to force the user to pick a time step since there is not "safe" way
803        of choosing it)
804      - add principal stress diagnostics
805      - rearrange fields for evp a little to avoid having to call a: too many
806        exchanges and b: exchanges for stress trensor components which we do
807        not have.
808      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
809        of evp, complete rewrite for lsr case (latter is does not yet work
810        in all cases)
811    o pkg/kpp: add code to have mixing in shelf ice caverns
812      - add myThid to all kpp routines (long overdue)
813    
814    checkpoint59
815    o pkg/exf:
816      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
817        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
818      - move exf header files from lower_case.h to UPPER_CASE.h ;
819        add missing cvs Header & Name
820      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
821      - add namelist param. selectStressGridPosition, exf_monFreq
822      - retire many _CLIM routines, and remove data.exf_clim
823        + params moved to data.exf
824        + climsst, climsss now handled by exf_set_gen, i.e.
825          climss?period=0 refers to constant field,
826          climss?period=-12 to monthly forcing
827      - split up namelists in data.exf
828    o pkg/seaice:
829      - remove seaice_exch and seaice_exch_uv
830      - remove superfluous exchange of theta
831      - add myThid to seaice_budget_ocean/ice
832      - add new interface for atmospheric wind forcing (C-grid only)
833        + new routine
834        + two new field (taux, tauy for stress over ice)
835        + removed one global field (DAIRN) for C-grid case only
836    o pkg/thsise
837      - 2nd set of modifs for thsice adjoint in conjunction with exf
838    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
839    
840    checkpoint58y_post
841    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
842      vertical diffusivity, similar to that in MOM4; turned on using
843      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
844      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
845    o Added capability for 3D specification of background vertical diffusion
846      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
847      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
848      "data" file that contains the 3D vertical diffusivity coefficients.
849    o ice dynamics (pkg/seaice) with thsice thermodynamics:
850      - add code within pkg thsice to advect & diffuse sea-ice fields
851      similar to (and will replace) what has been added in  seaice_advdiff.F,
852      but: - conserving Mass, Heat & Salt.
853           - better when using non-linear advection scheme (not yet fully tested)
854           - can also be used in atmospheric set-up (for now, only the diffusion).
855    
856    checkpoint58x_post
857    o IO option for global-file compact format:
858      - add options when generating topology (utils/exch2/matlab-topology-generator)
859      - add I/O capability (pkg/mdsio).
860      - adapt utils/matlab/rdmds.m to read this format.
861      for now long-line format not yet supported by pkg/mdsio (& exch2).
862    o shelfice: add a few diagnostics
863    
864    checkpoint58w_post
865    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
866      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
867      (and replace horiVertRatio in NH code).
868      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
869                         and tutorial_plume_on_slope (sensitive to truncation)
870    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
871      directly to drive seaice model (C-grid only)
872    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
873     - reintroduce computation of wind from stress,
874     - compute tau (in exf_bulkformulae.F) from windstress averaged to
875       mass points to avoid tau = 0
876     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
877    o rdmnc.m: make it work with "global" files created with gluemnc
878    o rdmnc.m : some improvements in dealing with singleton dimension
879      (tested on all testreport mnc output files).
880    o genmake2: disable pkg/profiles if netcdf test fails.
881    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
882    o move call to cal_readparms up to make calendar parameters/variable available
883      to all packages
884    
885    checkpoint58v_post
886    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
887      useDynP_inEos_Zc tested.
888    o pkg/exf: changes to properly interpolate/mask/scale initial fields
889    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
890      and portions thereof.  See read_cs.txt for description and examples.
891    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
892      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
893      following the great-circle arc between those 2 points.
894    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
895      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
896    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
897     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
898     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
899     - still needs work (not working with some options ; efficiency to improve)
900       and serious testing.
901     - use this scheme for temperature & salinity in 2 advection test exp.:
902       advect_xy & advect_xz, respectively.
903    
904    checkpoint58u_post
905    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
906    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
907    o testreport: add option "-skipdir" to skip some test.
908    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
909      momentum calculation.
910    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
911    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
912      remove checkpoint.F and the_correction_step.F (no longer used);
913      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
914    o add option (linFSConserveTr) to correct for tracer source/sink due to
915      Linear Free surface
916    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
917    o pkg/thsice: fix reading mnc-pickups
918    
919    checkpoint58t_post
920    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
921    o pkg/mdsio:
922     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
923       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
924       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
925     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
926     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
927       either MDS_READ_FIELD or MDS_WRITE_FIELD )
928     - new S/R (to replace MDSWRITEMETA), which allows to write more
929       informations (variable names, time ...) to meta files.
930     - modify rdmds.m to give back the meta file content.
931    o pkg/diagnostics: change vertical interpolation to be safer, and more
932       flexible (define p-levels to interpolate to in data.diagnostics);
933      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
934       diagnostic pointer.
935    o pkg/seaice: more cleaning up of seaice_growth, added many comments
936    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
937    o fix multi-category seaice:
938     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
939       SEAICE_MULTICATEGORY
940     - fix short wave heat flux
941    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
942       and allow to use EVP solver. Change forward lab_sea: test both EVP
943       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
944    o Initial check-in of lab_sea adjoint
945      (very similar to natl_box_adjoint/code_seaice)
946      * used C-grid and EVP solver
947      * used KPP, GM/Redi
948      * uses inAdExact=.TRUE.
949      * gradient checks fail for both ADM and TLM
950        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
951        f.d. gradients actually seem more problematic than ADM, TLM gradients;
952        issue is related to forward mismatch between g77 an ifort
953    o pkg/seaice: overhaul of thermodynamics
954     - growth.F and groatb.F are replaced by new routine seaice_growth.F
955     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
956     - move a few global fields out of SEAICE.h into seaice_growth.F and
957       make them 2D (FICE/QNETO/ ...)
958     - remove FO (it is the same as QNETO)
959     - introduce a few local fields to avoid modifying external fields such
960       as atemp, etc.
961    
962    checkpoint58s_post
963    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
964      changed exf_set_gen.F so that
965        genperiod=0 means input file is one time-constant field and
966        genperiod=-12 means input file contains 12 monthly means
967    o CG2D: use pre-computed solver main-diagonal (stored in common block);
968      this affects truncation error ; generate new output file for exp. which
969      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
970        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
971        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
972        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
973        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
974        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
975    o start implementation of deep-atmosphere and anelastic formulation
976    o verification: remove 2nd copy of input files and use script "prepare_run"
977      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
978    o mom_common/vecinv/fluxform: fix a few initialisation isssues
979    o profiles: fix for multithreaded case
980    
981    o diagnostics: rename few diags:
982      s/'PRESSURE'/'RCENTER '/g
983      s/'TICE    '/'oceFreez'/g
984      s/'TAUX    '/'oceTAUX '/g
985      s/'TAUY    '/'oceTAUY '/g
986      s/'SWFLUX  '/'oceQsw  '/g
987      s/DIFx/DFxE/g
988      s/DIFy/DFyE/g
989      and add few ocean-forcing diagnostics:
990      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
991    o modifications to pkg/seaice/growth.F and budget.F, which change results of
992      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
993      as actual snow thickness.  It now refers everywhere to effective snow
994      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
995    
996    checkpoint58r_post
997    o modifications to pkg/seaice/growth.F, which change results of
998      lab_sea experiment: fixes pertain to melting snow over open water, to
999      masking EVAP under sea ice, and to using the correct AREA variable for
1000      computations of EVAP, PRECIP, HSNOW, and GHEFF
1001    o add ability to read bathy, salt, and theta using MNC (off by def)
1002    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1003      both are turned off by default and do no change any results
1004    o seaice advection with pkg/thsice: a step toward the use of non-linear
1005      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1006    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1007      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1008      in natl_box (affects results @ truncation level: update output.txt)
1009    o multi-threading and IO:
1010      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1011      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1012        (needed to work with SingleCpuIO): tested in all verif. exp.
1013    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1014      affects the results (but none of the verification test uses this scheme).
1015    o Adding some pkg/diagnostics capability to pkg/seaice
1016      (will certainly be subject to changes)
1017    o ctrl: adding new control variables:
1018      lwflux, lwdown, evap, snowprecip, apressure, runoff
1019    
1020    checkpoint58q_post
1021    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1022      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1023      high_res_cube configuration by 4% on Columbia.
1024    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1025      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1026      dynamical allocation (seems to work in multi-threaded).
1027    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1028      single CPU io) so that TAF does not have to see EESUPPORT.h
1029    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1030    
1031    checkpoint58p_post
1032    o obcs: stop if obcs is used with useCDscheme = .true.
1033    o shelfice:
1034     - fix a sign error so that no slip at shelfice interface works
1035     - remove stop for combination non-hydrostatic code and shelfice. That does
1036       not mean, that the results are correct, but at least they are numerically
1037       stable
1038    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1039    o added adjoint exch routined for all exch*3d* routines
1040      and updated flow directives
1041    
1042    checkpoint58o_post
1043    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1044      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1045    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1046      and clean-up reading/writing of pickup files.
1047    o fix local version of read/write pickup (NH part) in rotating_tank/code
1048    o simplify EXCH interface:
1049     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1050     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1051    o added the regrid package
1052    o shelfice:
1053     - add a simple boundary layer scheme to reduce noise
1054     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1055    
1056    checkpoint58n_post
1057    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1058       local variable (not in common block).
1059    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1060      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1061      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1062        to work with SingleCpuIO.
1063    o add "_d 0" to real constant of pkg/cfc subroutines ;
1064       update exp. cfc_exemple & tutorial_cfc_offline output files.
1065    o multi-threading and IO:
1066      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1067        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1068      - barrier before and after reading.
1069      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1070      - avoid using MDS_WRITELOCAL for LAND pkg output.
1071      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1072        common-block variables ; Allows multi-threading with master-thread IO.
1073    o change default MAX_NO_THREADS from 32 to 4 ;
1074      and stop cleanly when MAX_NO_THREADS is too small.
1075    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1076    
1077    checkpoint58m_post
1078    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1079       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1080    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1081       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1082       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1083    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1084        add MITgcm_tutorials (= code + all the tutorials)
1085    o ecco, option to compute cost for total ssh (mean+anom)
1086    o consistent with addition of ptracer and ssh in pkg/profiles
1087    o profiles: adding ptracer and ssh
1088    o testreport: change multi-test output-file name
1089      (from output.txt.{name} to output.{name}.txt)
1090    o profiles: now ok for mutli-tiles case
1091    o seaice: add 4 parameters for different advection schemes for area,
1092      (effective) seaice thickness, enthalphy, and snow height. Their default
1093      is the standard parameter SEAICEadvScheme
1094    o calc_gw:
1095     - add cosFacU in zonal viscous flux (harmonic.visc.).
1096     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1097       of tutorial_plume_on_slope.
1098    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1099    o calc_gw: true flux-form, account for horizontal grid spacing.
1100      update rotating_tank results, but not plume_on_slope (affected at
1101      truncation level, 11 digits).
1102    
1103    checkpoint58l_post
1104    o calc_gw:
1105     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1106     - remove side-drag for now (need to fix it); update plume_on_slope results.
1107     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1108    o commit code to make SST/SSS weights spatially variable
1109      (based on either variable in-situ or variable initial T/S weights)
1110    o pkg/ecco:
1111      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1112        now based on horizontally varying weights wthetaLev, wsaltLev
1113      * cost_averagesflags now returns year indices in addition to day, month
1114      * sflux balance is performed on annual basis
1115        (sflxumm, sfluxmm2, bal_sfluxmm)
1116      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1117        including separate counting and multipliers
1118    o pkg/rbcs
1119      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1120    
1121    checkpoint58k_post
1122    o testreport:
1123     - always build in dir. "build" (if not there, mkdir build instead of building
1124       & running in input)
1125     - run in dir run (if it exists), in build otherwise.
1126     - call prepare_run (if input/prepare_run exists)
1127     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1128    o pkg/exf modifications to interpolation and rotation routines for more
1129       reasonable treatment of North Pole singularity: for tracers North Pole
1130       value is set to northernmost zonal-mean value, for zonal velocity it is
1131       set to zero, and for meridional velocity it is set to northernmost value.
1132    o pkg/exf/exf_check_range.F
1133     - add tile index to diagnostics and move stop statement to the very
1134       end of the routine.
1135    o pkg/diagnostics: (diagnostics_main_init.F)
1136      define title of isomorphic variables according to the current config.
1137    o pkg/thsice with pkg/seaice dynamics:
1138    - fix domain of computation (interior only, required for exf) and do exchanges
1139    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1140    o towards a standard way of dealing with multi-threading in MONITOR
1141      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1142    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1143       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1144    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1145    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1146    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1147       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1148    o tracer advection:
1149     - clean-up and simplify calc_common_factors.F
1150     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1151       advection subroutine (but still not used within DST advection S/R)
1152    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1153    
1154    checkpoint58j_post
1155    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1156      from file (collects calls previously in FORWARD_STEP)
1157    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1158    o adjoint store dir. adjusted accordingly
1159    o genmake2
1160      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1161    
1162    checkpoint58i_post
1163    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1164      on wind stress (SEAICEstressFactor defaults to 1.)
1165    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1166      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1167    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1168      on CS-grid: no longer loosing mass.
1169    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1170    o pkg/ggl90: fix sloppy output and fix a bug
1171    o pkg/seaice: added SEAICEuseEVPpickup parameter
1172      - Set to false in order to start EVP solver with
1173        non-EVP pickup files when using SEAICEuseEVP
1174      - fix sign error in diffusion in seaice_calc_rhs
1175    
1176    checkpoint58h_post
1177    * Modifications for bottom topography control
1178      o replace hFacC by _hFacC at various places
1179      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1180      o add non-self-adjoint cg2d_nsa
1181      o update autodiff support routines
1182      o re-initialise hfac after ctrl_depth_ini
1183      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1184    * Adding verification for 5x5 box (4-layer) bottom topography control
1185    
1186    checkpoint58g_post
1187    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1188       used for mean seasonal cycle, mean diurnal cycle); add an example
1189       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1190    o pkg/ggl90:
1191      - add parameter (minimum surface kinetic energy)
1192      - fix bug (avoiding division by zero)
1193    o couple pkg/thsice to pkg/seaice:
1194      - modify advection in seaice to accomodate new scalar fields to be advected
1195      - only muliDimAdection scheme work with seaice/thsice
1196      - mapping of thsice-variables to seaice-variables, back and forth
1197      - does not break the verification experiments, but does not give the
1198        desired results either
1199    o pkg/seaice
1200      - make (default) second order advection a bit less confusing?
1201    
1202    checkpoint58f_post
1203    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1204      to pkg/seaice):
1205      - new routines thsice_map_exf and thsice_get_exf provide the interface
1206      - add an additional formal parameter to thsice_solve4temp
1207    o pkg/exf:
1208      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1209      - correct Stefan-Boltzmann constant
1210      - new parameter for longwave surface emittance
1211      - separate some stuff from exf_bulkformulae into new routines  
1212        exf_radiation, exf_wind
1213      - add new parameters and constants: longwave emissivity for ocean, ice
1214        and snow, evaporation parameters over ice
1215      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1216        either wind from stress or stress from wind
1217    o pkg/thSIce:
1218    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1219    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1220       and THSICE_CALC_THICKN
1221    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1222    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1223      to make debugging easier.
1224    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1225    o pkg/bulk_force:
1226      - clean-up comments and parameters ;
1227      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1228    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1229      generate new output for test-experiment: aim.5l_cs.thSI
1230    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1231      testreport accordingly
1232    
1233    checkpoint58e_post
1234    o SEAICE_CGRID adjoint done
1235    o R_STAR adjoint implemented.
1236      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1237      * need to sort out init. of h0facc, etc.
1238    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1239      to be able to use it in pure forward.
1240    
1241    checkpoint58d_post
1242    o upgrade simple test-experiment to tutorial example:
1243     step.1: duplicate the experiment and (step.2) will remove the old copy.
1244      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1245      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1246      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1247      tutorial_global_oce_biogeo    <- copy of dic_example
1248      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1249      tutorial_plume_on_slope       <- copy of plume_on_slope
1250      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1251      tutorial_global_oce_optim     <- empty for now (David ?)
1252      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1253     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1254    o correct a sign problem in cost_scat.F
1255    o obcs and ptracers: fix boundary conditions for advections schemes
1256      with larger stencil
1257    o thsice adjoint: start
1258    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1259      completeness
1260    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1261      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1262    o ptracers adjoint:
1263      * avoid extensive recomputatations
1264      * fix missing re-init. of gptr (missed by TAF)
1265    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1266      me to turn off the excessive output to STDOUT that this package produces
1267    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1268      and add those terms in Vector-Invariant formulation.
1269    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1270      if the control period (xx_hfluxperiod etc) is 0
1271    o in profiles pkg, clean routines and fix details
1272    o in ecco pkg, reading ssh data:
1273      fix problem in case the model does not start at iter0=0
1274    o fix mnc-pickup/restart for ptracers
1275    o new package prifiles:
1276      code to compute profile-based cost by Gael Forget
1277      (modifs in ecco, ctrl, autodiff)
1278    o Benign bug fix in initialization (spotted by M. Mazloff) of
1279      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1280    
1281    checkpoint58c_post
1282    o adjoint: finish NLFS adjoint and provide reference output in
1283      verification/global_ocean.90x40x15/results_ad_nlfs
1284    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1285      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1286      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1287      with SEAICE_CGRID defined.
1288    o move calendarDumps from "data" to "data.cal" and clean-up the code
1289      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1290    o add useEXF & useCAL flags (for now, set in hard-coded way)
1291    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1292      (were missing in NH mode, and wrong in quasihydrostatic mode).
1293      waiting for Chris updated version of calc_gw to add those CALLs.
1294    o fix bug in quasihydrostatic S/R ;
1295      add a test for this option: global_ocean.90x40x15.qshyd
1296    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1297      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1298    o add on/off flag useOffLine for package OFFLINE
1299    o seaice:
1300      - modify advection so that it works also on the C-grid
1301      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1302        problem in multi-tile runs with C-grid
1303      - add flags for clipping ice velocities and/or masking solver forcing
1304      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1305        C-grid solver
1306      - added a few comments to seaice_diffusion.F
1307      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1308        are now exclusive)
1309      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1310        required re-ordering the code a little:
1311       + make DAIRN global variable (defined in SEAICE)
1312       + move computation of the viscosities eta and zeta into a new separate
1313         routine (because I need to recompute them in seaice_ocean_stress.F)
1314    
1315    checkpoint58b_post
1316    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1317      update output.txt of exp. aim.5l_cs.thSI
1318    o various mnc cleanups and improvements:
1319      + shrink lookup tables by factor of ~4
1320      + better error reporting when running out of lookup space
1321      + able to handle longer path/file names (up to 500 chars)
1322    o adjoint:
1323      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1324      - TBD: "hidden" mom_vecinv recomp. in dynamics
1325    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1326     (allow to differentiate between forcing components using new integer flags:
1327      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1328     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1329    o ecco
1330      - enable trend removal from SSH anomaly obs.
1331    o adjoint
1332      - a fix for PmEpR when #undef EXACT_CONSERV
1333      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1334      - try to fix "hidden" recomp. in forward_step for NLFS
1335        (NLFS seems broken sometimes after I checked it in)
1336    o seaice:
1337     - add c-grid version of the dynamic solver:
1338       + three new routines that are the c-grid substitute lsr, dynsolver
1339         and ostres
1340       + put a few fields that were local to dynsolver into global common
1341         blocks, so that I can move the computation of stresses etc into
1342         seaice_lsr (saves coding but may break the adjoint).
1343     - replace more hardwired parameters by runtime parameters
1344     - add ice masks that mask the rhs of the implicit solvers where there
1345       is no ice (commented out in seaice_dynsolver, because i am not sure
1346       if this works properly), eventually this should replace the clipping
1347       of ice velocities in seaice_dynsolver to +/-40cm/s.
1348    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1349      include it only where its needed
1350    o move balancing of fluxes before the call of external_forcing_surf
1351    o seaice:
1352      - correct units of turning angles (now they are really in degrees)
1353      - move computation of GWATX/Y out of main routine into dynsolver
1354      - initialize GWATX/Y in seaice_init
1355    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1356      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1357    o seaice: add runtime flags for turning angles (default to zero)
1358    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1359      and trend from exf forcing and ctrl control adjustments
1360    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1361      (since checkpoint57x_post)
1362    o change the default rotation period to 86164.s = the Earth rotation
1363    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1364      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1365    o seaice advection: add code for choosing between the default (2nd order
1366      central differences) and multiDim advection schemes provided by
1367      pkg/generic_advdiff
1368    o seaice:
1369      - removed all references to SEAICE_GRID.h fields from
1370        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1371        (cubed-sphere configuration will change a little)
1372      - grid computations in seaice_init are obsolete now.
1373      - cleaned up code a little so that is easier to read (hopefully).
1374      - added new (better?) discretizations of default advection and diffusion
1375        (turn on with SEAICEuseFluxForm)
1376      - replace 1 in 3d global fields by kSurface in growth.F
1377      
1378    checkpoint58a_post
1379    o seaice:
1380      - bug fix in advect.F
1381    o shelfice:
1382      - separate shelfice load anomaly from pload (breaks with time
1383        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1384        Its default is 0., but it may be computed more cleverly from (unknown)
1385        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1386        done offline. A good approximation of the pressure load anomaly is
1387        necessary to avoid large initial adjustment processes underneath
1388        deep-reaching shelfice.
1389      - small fix in ISOMIP shelfice_thermodynamics
1390      - add more sophisticated thermodynamics of Hellmer (1989), this is
1391        now the default
1392      - give a few constants more intuitive names
1393    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1394      if bulk formulae are used in long integration (especially EmPmR). Turn
1395      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1396      if balancePrintMean, the imbalance that is substracted is printed to
1397      STDOUT.
1398    o fix bug (typo) in obcs_apply_eta.F
1399    o add a new package shelfice which enables us to model the circulation
1400      underneath shelf-ice with draughts of hundreds of meters.
1401     - works
1402     - to do: + include improved thermodynamics
1403              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1404                instead of new field kTopC
1405              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1406                instead of new field R_shelfIce and new code in ini_depth.F
1407                and ini_mask_etc.F?
1408              + adjust vertical mixing schemes?
1409    o seaice pkg:
1410     - add a cpp-flag to include a simple formula for a salinity dependent
1411       freezing point of sea water at the surface
1412     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1413       meridional stresses are now different (and hopefully correct)
1414    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1415       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1416       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1417    o pkg/diagnostics: add options and parameters for regional-statistics
1418       diagnostics ; define regions by reading a region-mask from a file
1419       (might add other options later)
1420    o pkg/bulk_force:
1421     - add option and parameters to use AIM surface-flux formulae.
1422     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1423       others forcing fields (defined in PARM05, parameter file "data") are loaded
1424       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1425     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1426     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1427     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1428       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1429     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1430    
1431    checkpoint58
1432    o add "--embed-source" option to genmake2 which, when the supporting
1433      tools can be compiled (as determined by genmake2) will turn on the
1434      embed_files package which then embeds the entire MITgcm source code
1435      (*.[fFhc] + Makefile) used for the build within the executable
1436      - requested by CNH but off by default
1437      - adds a paltry <9MB to the mitgcmuv executable in most cases
1438      - only writes the output when useEMBEDSRC in eedata is true
1439    o clean up 3-dim. relaxation codes:
1440      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1441      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1442      * Thanks to Tom Haine for testing!
1443    
1444    checkpoint57z_post
1445    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1446      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1447    o fix the pickup behavior for obcs in combination with ptracers
1448    o fix a bug in ptracers_external_fields_load
1449    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1450      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1451    o transfered surface NH pressure to eta field (if exactConserv).
1452    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1453         and update lab_sea output.txt file.
1454    o completing 3-dim. relaxation code: additional term
1455         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1456      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1457      * At compile time, in "EXF_OPTIONS.h" set
1458          #define  ALLOW_CLIMTEMP_RELAXATION
1459          #define  ALLOW_CLIMSALT_RELAXATION
1460      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1461          tauThetaClimRelax3Dim = 15552000.0,
1462          tauSaltClimRelax3Dim  = 15552000.0,
1463      * 3 cases:
1464          1) Use a constant-in-time 3-dim. field
1465          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1466          3) Real-time relax. to time-evolving prescribed field
1467    o Adding Laplacian-type smoothness constraint on
1468      initial and boundary (forcing) controls (ic, bc)
1469      * enable at compile-time via
1470        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1471      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1472      * Absolute scale somewhat unclear so far
1473      * no area weighting was included since no other cost term does so far
1474    
1475    checkpoint57y_post
1476    First step for a NLFS adjoint
1477    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1478    o new init. routines for calc_r_star, calc_surf_dr
1479    o still need to deal with ini_masks_etc
1480    o testreport seemed happy
1481    checkpoint57y_pre
1482    
1483    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1484    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1485    o add new offset feature to offline pkg (plus minor cleanup)
1486    o cfc fixes for final year of integration
1487    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1488      be in GCHEM_OPTIONS).
1489    
1490    checkpoint57x_post
1491    o fix testreport Pb in multiple test experiment.
1492    o cleanup our namelist syntax in verification:
1493      - make it more F95 standards compliant (some work still needed)
1494      - allows the vast majority of our tests to work with gfortran
1495    o Non-Hydrostatic:
1496     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1497     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1498    o Allow to apply AB on T,S rather than on AB(gT,gS):
1499     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1500     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1501       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1502     - need a "clever" read_pickup to restart from the other AB formulation
1503    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1504    o remove some unused variables (reduces number of compiler warnings)
1505    o adjoint
1506      * Disable useVariableViscosity for adjoint for time being
1507        (there are a number of extensive recomputations)
1508      * Initialize certain variables needed for adjoint
1509    
1510    checkpoint57w_post
1511    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1512                 fix the singleCpuIO RS version of MDSWRITEFIELD
1513       and add a WARNING if using globalFiles=T with multi-processors.
1514    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1515      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1516    o tracer advection scheme:
1517      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1518       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1519       was not very convenient).
1520      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1521       (further tests needed for the implicit DST & Flux-Limiter schemes).
1522    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1523      and sRef for convenience, handy, when you want to initialize
1524      ptracers in a large domain with a constant non-zero value. Also,
1525      untangle ptracers_init.F a little.
1526    
1527    checkpoint57v_post
1528    o change dome exp. to use variable viscosity in side-drag terms.
1529    o remove all the files from the cfc_offline test since they are now
1530      incorporated into tutorial_cfc_offline which has been producing
1531      identical results for a few days of testing
1532    o add new parameter: sideDragFactor to enable half-slip-side BC
1533      and change side-drag S/R to use viscosity from mom_calc_visc
1534      (can switch back by setting sideDragFactor=0.); affects results at
1535      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1536       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1537    o vorticity & strain are now computed without masking, to account for
1538      no-slip-side BC in variable viscosity calculation ; mask is applied
1539      anyway later on, before computing advection/coriolis terms.
1540    o modify exp4 to test new obcs support for reading from external files
1541      and for passive tracers
1542    o fix behavior of ptracers_monitor when monitor output is written to a
1543      netcdf-file; still not independent of monitor.F (writes in the same
1544      file).
1545    o change default value of tRef (put a uniform, meaningful value for ocean
1546      & atmos) and initialize sRef (was missing, as Martin mentioned).
1547    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1548      to be proportional to enstrophy dissipation length.  Thus,
1549       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1550      This is now consistent with Smagorinsky and with the manual.
1551    
1552    checkpoint57u_post
1553    o OBCS and PTRACERS: add open boundary support for passive tracers
1554      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1555        OB-values from file; this is not different from the way theta and salinity
1556        are treated
1557      - however, Orlanski-radiation conditions are not supported, and the model
1558        will stop if you use pTracers and Orlanski at the same time.
1559      - beefed up the rountine obcs_external_fields_load: now only those open
1560        boundary values are overwritten with values from files for which there
1561        are really files, otherwise the OB-fields remain untouched. This makes
1562        it possible to use different OBs at different ends of the domain (as
1563        with EXF)
1564    o reduce number of exch calls in shap_filt (s2).
1565    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1566      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1567    
1568    checkpoint57t_post
1569    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1570    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1571      same truncation, independent of the face number: affects affects several
1572      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1573    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1574      note that biharmonic viscosity + no-slip was not tested in any experiment.
1575    o fix bug in non-linear free-surf side-drag ; generate new output for
1576      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1577    o make mnc honor the writeBinaryPrec flag for most kinds of output
1578    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1579    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1580      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1581    o add brackets in multi-terms sum to get same truncation, independent of
1582      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1583      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1584    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1585      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1586      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1587      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1588      Suggested values of viscosity parameters found in mom_calc_visc.
1589      Many new viscosity diagnostics available.
1590    
1591    checkpoint57s_post
1592    o Add clearing-house for viscosity calculations, mom_calc_visc and
1593      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1594      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1595      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1596      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1597      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1598      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1599      ViscAhStrain and viscAhTension are now retired.
1600    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1601    o In response to JMC's bug report, genmake2 now ignores any soft-links
1602      that it finds in the *current* directory when searching for files.
1603      Soft-links found in any other source directories will still work as
1604      they did before.
1605    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1606      a C routine to unlimit the stack size
1607    o mnc-ify pkg/aim snapshot vars
1608    o mnc-ify pkg/land as requested by Daniel
1609    o various changes to mnc including:
1610      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1611      - output can now be grouped so that all files within a group
1612          change the ITER portion of their names in lock-step together
1613      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1614          and works with both EXCH1 and EXCH2 (but needs more testing)
1615      - writing works for all verification test cases w/ g77 on Linux
1616    
1617    checkpoint57r_post
1618    o make MNC variable initialization happen earlier
1619    o add diagnostics for (almost) each term of the momentum Eq.
1620    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1621    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1622    o remove MINIMAL_TAVE_OUTPUT option ;
1623      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1624    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1625      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1626    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1627    o add time-dependent SST, SSS control
1628    o cost terms in ecco/ modularized (new cost_generic.F)
1629    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1630    o new infrastructure for seaice model vs. obs misfits in seaice/
1631      * driver from the_main_loop.F is seaice_cost_driver.F
1632      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1633      * gradient check in Exp. 6a of natl_box_adjoint/
1634    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1635      (see README file)
1636    
1637    checkpoint57q_post
1638    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1639    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1640      - bug was reported by Jean-Michel and Ian Fenty
1641    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1642      update exp. cpl_aim+ocn output.
1643    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1644      Needed for high-res. runs with large global files
1645      to be able to limit tapelev size
1646    o Changed some tests for adjoint:
1647      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1648      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1649      * global_ocean.90x40x15/ back to default 3-level checkpointing
1650    o Modifications to enable scripted COMMON to MODULE conversion
1651      * verification/OpenAD/code/ has necessary scripts and description;
1652      * converts, compiles and runs successfully;
1653    
1654    checkpoint57p_post
1655    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1656    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1657      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1658    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1659    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1660      (was already the case for dissipation with mom_vecinv,
1661       and also the case for grad.PhiHyd when staggered-timeStep)
1662      This will allow to put dissipation out-off the AB time-stepping.
1663     Unfortunately, affects truncation error. Update output of exp. that "fails"
1664      (cg2d matching number) and leave the others for later: front_relax(10),
1665      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1666      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1667    
1668    checkpoint57o_post
1669    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1670      (2) its ready to be documented during the 20050801 DocFest
1671    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1672      for ideal_2D_oce and lab_sea on linux_ia32_g77
1673    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1674      in global1x1_tot/code_seaice_adj to access indices 32, 33
1675      (worth another tag)
1676    
1677    checkpoint57n_post
1678    o adding precip control xx_precip 32
1679    o adding swflux control xx_swflux 33
1680    o Replacing 10 forcing penalty cost routines by 1 generic.
1681    o Implementing partitioning in time-mean and variable adjustment
1682      for atmos. state.
1683    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1684  o in natl_box_adjoint:  o in natl_box_adjoint:
1685    * updated: results_bulk/    * updated exp 1 to 10
1686    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
1687    o updated global1x1/*_seaice_adj/
1688      to incorporate latest changes
1689    o enable useSingleCpuIO for mdsio vector routines
1690      (applies in particular to tapelev I/O)
1691    o removed inefficient K-loop in all active_file*control*.F
1692    
1693  checkpoint57m_post  checkpoint57m_post
1694  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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