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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.1041 by jmc, Wed Nov 19 01:56:41 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 move getcon.F from model/src to pkg/fizhi.
8  o moved ptracer ctrl index 17 -> 32  o pkg/exf: add parameter for extrapolation of temp up to the surface
9       and option to prevent negative evap (in bulk_largeyeager04 only).
10    o Prather Advection scheme: fix tracer conservation for divergent flow
11      (e.g., when using NonLin Free-Surface).
12    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
13    o gmredi (Visbeck-variable-K):
14     - add more parameters to Visbeck-variable-K.
15     - use a 5 points average for dSigmaR in Visbeck-K calculation
16       (more "homogenous": same stencil and same weights as in dSigmaH)
17     - update output of ideal_2D_oce experiment.
18    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
19      (#undef REAL4_IS_SLOW)
20     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
21       coordinate variable
22     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
23       (surface forcing fields), removes some of the functionality
24     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
25     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
26       probably not all: copy _RS surface flux fields to RL field before
27       calling DIAGNOSTICS_FILL
28     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
29       real*4 (CALL EXCH_*_RS) versions.
30     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
31       (generate new output).
32    
33    checkpoint61e
34    o gmredi (Visbeck-variable-K):
35      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
36      - change computation of Visbeck-K where Slope > Smax :        
37        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
38        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
39    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
40      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
41    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
42    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
43      does not become too large (to avoid precision problems in implicit-diffusion
44      solver); update ideal_2D_oce output.
45    o pkg ggl90:
46      - in ggl90_cal.F: compute only one set of visc/diff, used to
47        step forward TKE/T/S/momentum
48      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
49        have Prandlt =1)
50    o gmredi (fm07):
51      - add lower limit on Transition layer thickness + lower limit on 1/lambda
52      - allow to set few more params from data.gmredi
53    o pkg ggl90:
54          - add missing sqrt(2) factor in computation of mixing length
55            scale in ggl90_calc.F
56            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
57    
58    checkpoint61d
59    o adjoint modifs
60      - adapt to new field rhoInSitu
61      - allow to revert from StoreDynVars2D, StoreDynVars3D
62        to individual fields
63        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
64    o store 3-D (in-situ) density in commom block (DYNVARS.h)
65     - save 1 rho computation.
66     - no longer modify T & S inland when using down_slope pkg.
67    o gad_som : allow to switch to SOM advection for T & S without corresponding
68      pickup files (using new S/R: MDS_CHECK4FILE).
69    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
70      (for useSingleCpuIO to work in multi-threaded)
71    o pkg/shelfice:
72     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
73       with SHELFICEtopoFile in data.shelfice
74     - move code for reading ice shelf topography and modifying hFacC into separate
75       subroutines of the shelfice package
76     - separate initialisation of "fixed" and "variable" variables
77     - kTopC is not (yet) replaced by kSurfC, although this is possible
78    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
79    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
80      and rename:
81      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
82      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
83    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
84    
85    checkpoint61c
86    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
87      to add mass source/sink of fluid in the interior (3-D generalisation
88      of oceanic real-fresh water flux).
89    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
90    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
91    o new pkg: down_slope
92      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
93      - presently, modify T & S inland (dwnslp_calc_rho.F).
94        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
95      - implementation for ocean in P-coords not tested.
96      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
97    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
98      (to facilitate conversion of oceanic pkg to p-coordinate).
99    o change FIND_RHO to FIND_RHO_2D :
100      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
101    o new pkg: cheapaml
102    
103    checkpoint61b
104    o exch2:
105      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
106      - no longer depend on the order sequence (N,S,E,W).
107      - 3rd exchange no longer needed (tested with 24 tiles).
108      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
109      - exch_UV_A-grid readily available (but not yet tested).
110      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
111      (both are no longer needed) in exch_uv: no effect in forward run; but
112       get truncation error differences with adjoint exch.
113    o exch2:
114     - change index-bounds storage (moved from target to local tile,
115       more intuitive this way) ; rename/remove some variables.
116     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
117    
118    checkpoint61a
119    o exch2/matlab-topology-generator:
120      fix bug in index bounds for N-S internal exchange (hard to tell if this
121      had any effect on the solution).
122    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
123      is exceeded
124    o testreport: modify syntax of awk, so that it works also with
125      awk, and not only with nawk and gawk
126    
127    checkpoint61
128    o autodiff
129      Change default for TAF usage by removing argument '-nonew_arg'
130      This changes TAF subroutine argument list (ordering of active var.)
131      Omission of this flag leads to incompatibility w.r.t. TAMC
132      To restore TAMC-compatibility, need following modifs:
133      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
134      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
135      Tested TAF version is 1.9.22
136      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
137    
138    checkpoint60
139    --->>> This is the last checkpoint for which generating the adjoint
140    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
141    --->>> by default.
142    --->>> Future checkpoints will ommit this flag by default.
143    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
144    o pkg/grdchk: Add gradient check to etan0 perturbations.
145    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
146    o pkg/autodiff: more flexibility in zeroadj.
147      model/src: modifying do_oceanic_phys.F accordingly.
148    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
149    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
150      special setup of gmredi for which the adjoint is stable
151      enough for parameter optimization.
152    o bridging the gap between eddy stress and GM.
153      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
154          along with a change in CPP option (now ALLOW_EDDYPSI).
155      -> when using GM w/ GM_AdvForm:
156          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
157          is applied either in the tracer Eq. or in momentum Eq.
158          depending on data.gmredi (intro. GM_InMomAsStress).
159      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
160      The key modifications are in model/src/taueddy_external_forcing.F
161      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
162    
163    checkpoint59r
164    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
165      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
166      fix option to read coriolis(@ cell-corner) from files with CS-grid.
167    o pkg/mnc: add some attributes to standard 1D-coordinate variables
168    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
169      mass points, when using mnc for output
170      - add runtime parameter (missing_value, missing_value_int) to override
171        default (which is the value of getcon('UNDEF'))
172    o pkg/mnc: prepare mnc for the actual use of missing values with the
173      diagnostics package: small fix in mnc_cw_readwrite.template and more
174      initialisation of never used fields
175      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
176      versions
177    o pkg/thsice/thsice_ini_vars.F added default initial values so that
178      thermodynamics sea ice solver does not blow up when some initial fields
179      are missing.
180    o move from external_forcing_surf.F to ini_forcing.F
181      the p-coord. hack consisting in using pLoad to set phi0surf ;
182      update output of tutorial_global_oce_in_p (affected @ truncation level).
183    o Freshen up a bit hs94.1x64x5, notably:
184      remove rotationPeriod and tRef=5*0. (adjoint only), and add
185      exactConserv=.TRUE.
186    o pkg/generic_advdiff:
187      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
188      applies to files where Temperature & Salinity 2nd Order moments are used.
189    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
190      this uses a dynamically allocated internal state data structure
191      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
192      and requires a fortran 90 compiler
193    
194    checkpoint59q
195    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
196       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
197    o Refresh tutorial_global_oce_biogeo, notably:
198      - change bathymetry (put back seamounts in ACC, use hFacs)
199      - change EOS (POLY3 --> JMD95Z)
200      - use Bryan-Lewis vertical diffusivity
201      - use multidimensional advection
202      - remove old virtual virtual in dic pkg, now done through ptracer pkg
203      - change a couple of parameters in dic pkg
204    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
205    o pkg/obcs: change default to OBCSfixTopo = .true.,
206      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
207      - replace "debugMode" with "debugLevel .GE. debLevB"
208    o implementation of TAF directives for gchem,cfc,dic
209    o remove "exp5" (replaced by tutorial_deep_convection).
210    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
211      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
212      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
213      --> changes results in exp4, seaice_obcs
214    o tutorial_deep_convection :
215      update the set-up and increase resolution and domain size ; start
216      from pseudo initial conditions = output at t=120mn in order to see
217      something happening when running testreport.
218    o pkg/seaice: add os7mp as an advection scheme
219                  add check for advection schemes
220                  add a flag for restoring T and S underneath sea ice
221    o pkg/my82: add netcdf-support and diagnostics
222    o thsice pkg:
223      - Now hsMax limits snow height by turning it into ice following
224        flooding scheme (and now conserving energy)
225      - Slight rewriting of the formula in thsice_calc_thick.F
226      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
227      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
228    
229    checkpoint59p
230    o gchem / dic / cfc :
231      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
232      - add new parameter files: "data.dic" & "data.cfc" ;
233      - various re-arrangement in initialisation & header file ;
234      - fix tutorial_global_oce_biogeo for multi-threaded test.
235    o pkg/dic: test for "pickup_dic" file when restarting ;
236      if no pickup-file, can restart with a re-initialised pH (same as it did
237      before) providing pickupStrictlyMatch is set to False.
238    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
239      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
240    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
241      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
242    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
243     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
244       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
245    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
246       scheme to use for vorticty-term ;
247     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
248       (with default selectVortScheme, return to original discretisation)
249     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
250    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
251    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
252      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
253      also fix diagnostics VISCAHW & VISCA4W.
254    
255    checkpoint59o
256    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
257    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
258      move a few statemens out the main loop into separate loops
259    o pkg/shelfice:
260      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
261        (kg/m^2/s), does not break tests, because in verification/isomip,
262        rhoConstFresh=rhoConst (by accident)
263      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
264      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
265        new file model/src/seawater.F, so that they are available for all pkgs.
266      - convert potential temperature into in-situ temperature. This changes the
267        isomip tests => update tests
268    o add a flag writePickupAtEnd (default=true) to be able to suppress
269      writing a pickup at the last timestep
270    o tools/mpack-1.6 :
271      - disable automake (not working) and autoconf (not needed).
272      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
273        also cleaner with much less compilation warnings.
274    o pkg/profiles:
275      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
276      (for "less than 32 characters name" compiler requirement)
277    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
278      conditions that have a different sampling frequency than S/T/U/V obcs
279    o pkg/diagnostics (stats-diags):
280      - fix global Min/Max in case 1 processor get only empty tiles
281    o genmake2: replace (4 times)
282         make genmake_tc_1.o >> genmake_warnings 2>&1
283      with
284         COMM="$CC $CFLAGS -c genmake_tc_1.c"
285         echo $COMM >> genmake_warnings
286         $COMM >> genmake_warnings 2>&1
287      to make genmake2 always see the value of CC as specified in the optfile.
288    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
289      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
290      - modify verification advect_cs test to test SOM-advection on CS-grid.
291    o pkg/ctrl:
292      - Rewrite of ctrl_map_ini_ecco.F,
293        introducing a generic routine (ctrl_map_ini_gen.F).
294      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
295    
296    checkpoint59n
297    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
298      number in dedicate array "hdiag":
299      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
300        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
301      - many small changes (integer format) for large number of diagnostics
302      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
303        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
304    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
305      usingSphericalGrid, this allows to define the rotated grid coordinates
306      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
307      geographical coordinates according to the inverse of the rotation defined
308      by the Euler angles, so that Coriolis parameter and online-interpolation by
309      exf works with the geographical coordinates on XC/YC/XG/YG.
310      Naturally, this feature does not work with all packages, so some
311      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
312      profiles), because there the coordinates are assumed to be regular
313      spherical grid coordinates.
314    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
315      - introduce isopycnal diffusion coefficient control.
316    o tools/adjoint_options:
317      - additional control vector components.
318    o pkg/mnc: have mnc create marginally meaning full coordinate variables
319      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
320    o pkg/mypackage:
321      - add example of read/write pickup for state-var ;
322      - add entry points to the main code for state-vars diags & write-pickup.
323    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
324      transitions for useExfYearlyFields
325      - add new subroutine that determines the file to read from for
326        use*YearlyFields = .TRUE. and .FALSE.
327      - add a verification experiment to global_with_exf that tests
328        useExfYearlyFields with USE_EXF_INTERPOLATION defined
329    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
330      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
331      subroutines (which could be generated from a template, because they are
332      almost identical), for now they are included in obcs_prescribe_read.F for
333      simplicity
334    o pkg/exf:
335      - add a little more diagnostic to exf_interp_read (in analogy to
336        mds_read_field, can be turned off with debugLevel < debugLevA=1)
337      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
338        ugly but fast by unrolling short inner loops, inserting a unroll=8
339        directive in routine lagran, and splitting a loop and making do while the
340        outermost loop (the latter requires the intoduction of index arrays)
341    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
342    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
343      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
344    o verification/seaice_obcs: updated for restart test and latest options
345    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
346      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
347      for now this is only available for the C-grid code and also within
348      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
349    
350    checkpoint59m
351    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
352      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
353    o gad_som : fix flux output (& diagnostics) to have same units as other  
354      advection scheme fluxes (was previously multiplied by deltaT).  
355    o added verification/seaice_obcs both to test seaice open boundaries
356      and to provide an example matlab scrpt for generating them
357    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
358    o pkg/salt_plume: clean up salt_plume_frac.F to
359      remove redundancy in PlumeMethod 1 and 4
360    o pkg/kpp: added saltplume diagnostics
361    o pkg/obcs and pkg/seaice:
362      - do not set uice and vice to zero when OB*icefile are unspecified
363      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
364      - moved seaice tracer obcs after call to seaice_growth
365    o pkg/salt_plume: added various options for salt plume depth
366      criterion and for vertical distribution of the salt
367    
368    checkpoint59l
369    o pkg/ptracers: new version of ptracers pickup:
370      read meta file and write only fields which are needed to restart.
371      ( same logic as main pickup file ; also using pickupStrictlyMatch )
372    o pkg/seaice:
373      - add timescale for melting due to warm mixed layer as a means of
374        setting SEAICE_availHeatFrac more conveniently
375      - add a CPP-flag/runtime parameter check for flooding algorithm
376      - reformulated availHeat in seaice_growth.F to be independent of AREA
377    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
378      unit changes
379    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
380    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
381      SX vector computer.
382    o pkg/seaice:
383      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
384        seaice forcing fields can now be read only through pkg/exf
385      - removed some unused halos
386    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
387    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
388      or U/VICE from U/VWIND before computing U/VSTRESS
389    
390    checkpoint59k
391    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
392      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
393    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
394      all experiments pass when compile with un-initialised var. checking option.
395    o added pkg/salt_plume
396    o script to test restart (for now, in MITgcm_contrib/jmc_script)
397    o pkg/seaice: new read/write pickup version.
398      read meta file and write only fields which are needed to restart.
399      ( same logic as main pickup file ; also using pickupStrictlyMatch )
400    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
401    o lab_sea.hb87: modify the domain & update output.hb87.txt :
402      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
403      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
404      process. Fixed here by closing the domain at the Northern boundary.
405    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
406    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
407      a set of consecutive levels in/from a 3-D array.
408    o pkg/ptracers:
409      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
410      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
411    
412    checkpoint59j
413    o in pkgs: dic, obcs, offline, rbcs:
414      standard way to compute coeff. for time interpolation between 2 time reccords
415      which retains full precision (& make results less dependent on compiler).
416      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
417    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
418      packages instead of reading ice cover and wind speed separately
419    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
420     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
421      to allow to compile customized code before the update)
422    o cleaning-up:
423      - fix CPP instruction syntax in pkg/obcs
424      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
425        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
426      - fix some threads issue in IO parts.
427    o pkg/dic:
428      - add tons of "_d 0" (--> much better testreports !)
429       and then update outputs of tutorial_global_oce_biogeo
430    o pkg/mom_fluxform:
431      add a special version of momentum advection intended to conserve momentum
432      next to a bathymetry step or a coastline edge. (default = off = #undef)
433    o new read/write pickup version:
434      - for now, only implemented for main (mdsio) pickup file.
435      - write out only what is needed to restart; merge pickup_nh , pickup_ph
436        and main pickup together.
437      - read meta file; read only what is needed to restart; stop if a field
438        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
439        if it make sense (even if the restart is not perfect).
440      - if no meta file, assume that pickup to read corresponds exactly to
441        a pickup that would currently be written.
442      - read pickup written in the old format (until checkpoint59i) if it
443        recognizes an old meta file (no field-list).
444      - add a meta file in exp. which starts from a pickup: 2 cases:
445        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
446         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
447        b) a meta file describing the content of the associated pickup file
448         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
449    o pkg/mdsio & pkg/rw:
450      - new routine to read a meta file ; new set of routine to read
451        Multiple-fields file (with meta file).
452    o added open boundary conditions capability for seaice
453        HSNOW, HSALT, UICE, and VICE
454    
455    checkpoint59i
456    o adjoint:
457      * fix multiDimAdvection adjoint
458        (partial recomputation problem by TAF for fVerT(:,:,kDown)
459        and comlev1 size definition (maxpass vs. max. number of tracers)
460      * verification/global_ocean.90x45x15 adjoint now tests
461        NLFS and multiDimAdvection using DST3 (=30)
462      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
463    o pkg/kpp: add "_d 0" to real constant (if missing);
464      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
465      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
466    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
467      for internal parameters related to restart process (formerly from PARAMS.h)
468      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
469    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
470      as argument. (only atm2d & obcs write_pickup have not yet been updated)
471    o pkg/monitor:
472      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
473      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
474      - account for deep Atmosphere factor and density factor (anelastic)
475    o added open boundary conditions capability for seaice HEFF and AREA
476    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
477      thermodynamics
478      - requires a little reorganization, which affects the testreport results
479        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
480        so that now the conservative form is tested
481      - add a few comments
482    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
483    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
484    o add new diagnostics to seaice: advective, diffusive fluxes (only for
485      multidim-advection, for scheme 2 they are not filled) and transports,
486      thermodynamic growth rates
487    o change units of EmPmR (inside the code, + within coupling interface)
488      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
489      Affects results @ truncation level (cg2d match) and update output of
490       experiments: lab_sea(6), global_ocean.90x40x15(10),
491      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
492      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
493      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
494      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
495    
496    checkpoint59h
497    o pkg/exf:
498      - improve vectorization by moving if-statement out of loops in
499        exf_mapfields, exf_radiation
500      - exf_bulkformulae.F: introduce 2D fields and vectorize code
501    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
502    o testreport:
503      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
504        monitor & update offline_exf_seaice exp. output.
505      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
506    o pkg/seaice:
507      - bug fix in the evp solver: boundary conditions were affected be
508        masking of zMax/zMin (changes results)
509      - minor bug fix in boundary conditions in seaice_calc_strainrates
510        (changes results for no_slip)
511      - seaice_lsr.F: make interpolation of eta dependent on boundaries
512      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
513      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
514        stress formulation and no-slip boundary conditions
515    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
516      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
517    o pkg/seaice: a first HSALT time stepping equation has been checked in
518    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
519      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
520      without requiring DO-IF statements
521    o pkg/thsice:
522      use continuous power-law function for partition of energy between lateral
523      melting/freezing and thinning/thickening ; old code using step function
524      still available with #undef THSICE_FRACEN_POWERLAW
525      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
526    o testreport: change AD testing : check against results/output_adm.txt
527      using same scripts as for forward test.
528    
529    checkpoint59g
530    o adjoint testing: in preparation for changing testreport:
531      - output format: cost and grad written on separated lines
532      - ad output results in directory "results" (instead of "results_ad")
533    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
534    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
535    o pkg/ecco: allow user defined cost function contributions
536    o testreport:
537      Allow to choose (per experiment) the list of tested output variables
538       and the main variable (used to issue a pass/FAIL ) ;
539      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
540      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
541      Also modify printing of summary:
542       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
543       b) echo the list of tested variables in the individual summary.txt of
544          each experiment.
545    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
546      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
547      (but still depend on the tile decompostion of the domain).
548    o pkg/seaice: change a discretization detail to make the B-grid code
549      "more symmetric". This change is likely to remove all "ridges/leads" that
550      where quasi-aligned with the grid in B-grid solutions. It may also be
551      the solution to the stress coupling issues with the B-grid.
552    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
553      remove .cvsignore from input dir. (since testreport no longer run here).
554    o pkg/thsice:
555     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
556     - fix reshaping of sea-ice just after advection:
557       melt all the ice only if ice-volume is too small.
558     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
559       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
560     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
561    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
562      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
563    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
564      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
565      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
566      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
567      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
568      -> update output.txt
569    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
570     this affects truncation error: -> update output.txt of exp:
571      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
572      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
573    
574    checkpoint59f
575    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
576    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
577      a bounded range (in forward mode)
578    o pkg/ecco, ctrl, autodiff and mom_common:
579     internal parameter controls, completements of implementations
580    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
581    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
582      (not seem any difference in testing results).
583    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
584       at face corners.
585    o pkg/generic_advdiff:
586     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
587      loop range indices for computing vertical advection tendency
588      and do the calculation in the interior only (no overlap) ;
589      for now, only implemented for SOM advection (to save CPU time).
590     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
591    o exch2 adjoint
592      First set of changes:
593      - add exch2 hand-written adjoint templates
594      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
595        This will require cleanup in pkg/autodiff/*.F
596        (changed routines currently kept separate in verif. code/)
597      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
598        that used to hide exch2 or cubed-sphere specific code
599        (commented via 'cph-exch2')
600    o pkg/seaice
601      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
602    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
603       output of global_ocean.cs32x15.thsice .
604    
605    checkpoint59e
606    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
607      for B-grid vector (not yet tested) and C-grid vector (<- only used
608      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
609    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
610      (#ifdef ALLOW_SALT_PLUME)
611    o gather_2d/scatter_2d: removed halo regions
612    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
613      scheme and the corresponding test case (under front_relax dir). For now,
614      only available with Skew-flux form and not yet tested in realistic set-up.
615      adjoint: store directives updated, but gradient checks deteriorated,
616      so maybe GM/Redi adjoint is now broken.
617    o seaice adjoint
618      * add AREA, HEFF, HSNOW as control variable
619        (should not change lab_sea results)
620      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
621    o pkg/seaice:
622      * added computation of saltFlux in seaice_growth;
623        For time being, sea ice salinity is assumed constant
624        contribution of snow flooding to freshening of sea ice is neglected.
625        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
626        defaults to 0.0 in order to maintain backward compatibility.
627        Typical values for SEAICE_salinity are 4 to 10 g/kg.
628      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
629      * added SEAICE_availHeatFrac, which specifies fraction of surface level
630        heat content used to melt or grow ice
631      * commented out cap of HICE: it helps keep ice thinner
632      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
633      * applied OBCS T/S mask to HEFFM sea ice mask
634    
635    checkpoint59d
636    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
637     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
638     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
639    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
640     and change default value of parameter "GM_Small_Number";
641     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
642       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
643       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
644    o pkg/ecco: cost function when applying pkg/smooth to controls
645    o pkg/ctrl: add forcingPrecond run time parameter
646    o pkg/seaice:
647     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
648     - fix bug in metric terms of u-equation in LSR solver (implicit part),
649       changes verification/lab_sea
650     - rearrange implicit part of u-equation in LSR solver to make it easier to
651       read, understand, and debug. This causes changes at the truncation level.
652     - fix (serious) bug in the boundary conditions (sign error in the implicit
653       part) of the LSR solver. Changes all LSR results.
654     - fixed problem with HSNOW initialization to avoid thick snow when AREA
655       is initilized with small values - does not change lab_sea results.
656     - added HsnowFile initialization capability
657    o pkg/smooth: addition to model/src and pkg/ctrl so allow
658     initialization of pkg/smooth and application to control vector
659    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
660    o dependencies: pkg/profiles requires pkg/cal
661    o pkg/profiles:
662     - added option ALLOW_PROFILES_GENERICGRID
663         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
664         that interpolation information (grid points and coefficients) is provided
665         within the netcdf input files.
666         -> sample matlab scripts can be found in MITgcm_contrib/gael
667         that allow you to prepare netcdf input files.
668     - also modified: cleaner include statements, cleaner error print statements,
669       cleaner stops when error, and more tests of the netcdf input files consistency.
670    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
671    o pkg/seaice:
672     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
673       requires a new routine: seaice_diagnostics_fill.F
674     - make sure that seaice does not move if not forced (pressure replacement
675       method, Hibler and Ip, 1995), changes results
676     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
677     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
678       It is turned off by default (=-1.), because it changes the results.
679     - make it possible to read AREA from a file, too.
680    
681    checkpoint59c
682    o add S/R and diagnostics for oceanic mixed-layer depth
683    o move GMRedi call after all vertical mixing schemes (including KPP)
684    o pkg/thsice:
685     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
686      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
687    o pkg/obcs:
688     - bug fix for balance code
689    o pkg/seaice:
690      - allow values of SEAICE_elasticParm > 1
691      - add new parameter SEAICE_evpTauRelax as an alternative
692        to SEAICE_elasticParm
693      - make lsr boundary conditions free slip (by default), changes result
694      - add code for no slip boundary conditions for lsr
695      - set minimum of zeta to zero (and not 4e8) (changes results)
696      - add a cap on AREA after advecting AREA if seaice_growth is not called
697    o change calculation of Visbeck K:
698      - no longer depend on tapering scheme; instead, compute slope (limited
699        by GM_maxSlope). this is equivalent to what was comuted before with
700        clipping or linear tappering.
701      - fix vertical averaging (wrong by 1/2 level)
702      - leave the old version (but will not be maintained) within
703        #ifdef OLD_VISBECK_CALC / #endif
704      - update output of exp. ideal_2D_oce
705    o change error catch in calc_r_star to improve vectorization
706    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
707      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
708    o adjoint:
709      Re-organized adjoint checkpointing according to Matt Mazloff
710      (but with modifs/completions/cleanups)
711      Storing is now bundled into large arrays to optimized I/O
712      (and second step in cleanup of the_main_loop)
713    
714    checkpoint59b
715    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
716      - export/import (between ocean & coupler) fields needed for ocean DIC.
717    o pkg/seaice:
718      - get rid of three more exchanges seaice_calc_viscosities (required
719        different loop boundaries in seaice_lsr and seaice_ocean_stress)
720      - bug fix in seaice_ocean_stress (update of lab_sea required)
721      - reduce loop boundaries to necessary minimum also in seaice_evp
722      - go back to the old way of computing deltaC/Z as the adjoint likes that
723        better
724    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
725      passive tracer to an Age Tracer) + update output.txt
726    o pkg/exf:
727      - implement A-grid / C-grid selection for wind-stress input files.
728      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
729      for now, in exf_bulk_largeyeager04.F only :
730      - change implementation for case where windspeed + 2. components wind-stress
731        are read-in. AND use rhoConstFresh to convert evap.
732    o pkg/seaice:
733      - use correct EXCH_UV for wind-forcing (on A-grid).
734      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
735        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
736    o pkg/exf:
737      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
738      EXF_INTERPOLATION:
739      - merge global_with_exf/code version of exf_interp_read.F
740        to the main code ;
741      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
742        reading the file ; Important: This options needs to be defined to recover
743        previous code.
744        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
745      - no longer loose real*8 precision along the way when using exf_iprec=64.
746    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
747      - change discretisation of evp-solver in order to avoid another exchange
748        (changes lab_sea) and clean up a little
749      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
750        help the adjoint (this also changes the results slightly)
751      - add a few "_d 0" where they had been missing in seaice_evp.F
752      - cleaning up: remove unused seaice_calc_rhs.F
753    o pkg/exf: some cleaning-up:
754      - change various "constants" into runtime parameters
755      - cleaned-up Large&Yeager04 routine which should eventually
756        replace exf_bulkformulae.F (changed names of S/R and CPP)
757        and merged various ALLOW_ATM_WIND options
758     only used with thsice pkg (in thsice_get_exf.F):
759      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
760        which are used when useStabilityFct_overIce=TRUE (= the default)
761      - change default values of ice & snow emissivity and scale downward LW
762        by ice & snow emissivity.
763    o pkg/thsice:
764     fix few little problems, in thsice_calc_thickn.F:
765      - growth vertically (and not laterally) if iceFrac == iceMaskMax
766      - melt only laterally if hIce < hThinIce (as the comments say)
767      and in thsice_extend.F:
768      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
769      - start to form ice as soon as the minimum ice-volume is reachable.
770     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
771      and cpl_aim+ocn
772    o pkg/kpp
773     - move computation of surface related input fields to KPP into a new
774       subroutine kpp_forcing_surf.F
775     - remove wrong (within bi,bj loops) EXCH calls.
776     - little cleaning (add argument myThid in last position, cvs header ...)
777     - for now, fix conservation problem by exchanging KPPviscAz (may not
778       be the best fix)
779    o pkg/seaice
780     - check for inconsistent evp parameter/cpp-flag combination
781     - remove leftover errIO flat for obsolete name list error handling
782    o OpenAD
783     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
784    
785    checkpoint59a
786    o pkg/seaice: some parameter clarifications and a little bit of clean up
787    o pkg/thsice: rename run-time parameters:
788       himin       -> hIceMin
789       himin0      -> hThinIce
790       hihig       -> hThickIce
791       i0          -> i0swFrac
792       transCoef   -> bMeltCoef
793       frac_energy -> fracMelting
794      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
795       with default values (for now) that do not change the results.
796      remove old version of thsice vars advection in pkg/seaice.
797    o in FFIELDS.h:
798      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
799      - make pLoad & sIceLoad always available (but still only used if
800         ATMOSPHERIC_LOADING is #define).
801    o pkg/kpp: replaced _KPP_RL with _RL
802    o bug fixes for vertical diffusivity computations when both KPP and
803        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
804        are no longer updating the vertical diffusivity array
805        (passed as argument) but are (re-) setting those arrays.
806    o pkg/seaice: fix bug in evp solver, while doing that
807      - change (improve?) discretization of stress computations for both
808        cgrid-lsr and evp solver
809      - add a new routine to compute strain rates
810      - the above changes lab_sea results
811      - add no slip conditions for evp solver (off by default), lsr-version
812        may follow
813      - fix exchange for shear at Z-points (does not change lab_sea)
814      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
815        (to force the user to pick a time step since there is not "safe" way
816        of choosing it)
817      - add principal stress diagnostics
818      - rearrange fields for evp a little to avoid having to call a: too many
819        exchanges and b: exchanges for stress trensor components which we do
820        not have.
821      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
822        of evp, complete rewrite for lsr case (latter is does not yet work
823        in all cases)
824    o pkg/kpp: add code to have mixing in shelf ice caverns
825      - add myThid to all kpp routines (long overdue)
826    
827    checkpoint59
828    o pkg/exf:
829      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
830        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
831      - move exf header files from lower_case.h to UPPER_CASE.h ;
832        add missing cvs Header & Name
833      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
834      - add namelist param. selectStressGridPosition, exf_monFreq
835      - retire many _CLIM routines, and remove data.exf_clim
836        + params moved to data.exf
837        + climsst, climsss now handled by exf_set_gen, i.e.
838          climss?period=0 refers to constant field,
839          climss?period=-12 to monthly forcing
840      - split up namelists in data.exf
841    o pkg/seaice:
842      - remove seaice_exch and seaice_exch_uv
843      - remove superfluous exchange of theta
844      - add myThid to seaice_budget_ocean/ice
845      - add new interface for atmospheric wind forcing (C-grid only)
846        + new routine
847        + two new field (taux, tauy for stress over ice)
848        + removed one global field (DAIRN) for C-grid case only
849    o pkg/thsise
850      - 2nd set of modifs for thsice adjoint in conjunction with exf
851    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
852    
853    checkpoint58y_post
854    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
855      vertical diffusivity, similar to that in MOM4; turned on using
856      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
857      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
858    o Added capability for 3D specification of background vertical diffusion
859      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
860      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
861      "data" file that contains the 3D vertical diffusivity coefficients.
862    o ice dynamics (pkg/seaice) with thsice thermodynamics:
863      - add code within pkg thsice to advect & diffuse sea-ice fields
864      similar to (and will replace) what has been added in  seaice_advdiff.F,
865      but: - conserving Mass, Heat & Salt.
866           - better when using non-linear advection scheme (not yet fully tested)
867           - can also be used in atmospheric set-up (for now, only the diffusion).
868    
869    checkpoint58x_post
870    o IO option for global-file compact format:
871      - add options when generating topology (utils/exch2/matlab-topology-generator)
872      - add I/O capability (pkg/mdsio).
873      - adapt utils/matlab/rdmds.m to read this format.
874      for now long-line format not yet supported by pkg/mdsio (& exch2).
875    o shelfice: add a few diagnostics
876    
877    checkpoint58w_post
878    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
879      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
880      (and replace horiVertRatio in NH code).
881      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
882                         and tutorial_plume_on_slope (sensitive to truncation)
883    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
884      directly to drive seaice model (C-grid only)
885    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
886     - reintroduce computation of wind from stress,
887     - compute tau (in exf_bulkformulae.F) from windstress averaged to
888       mass points to avoid tau = 0
889     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
890    o rdmnc.m: make it work with "global" files created with gluemnc
891    o rdmnc.m : some improvements in dealing with singleton dimension
892      (tested on all testreport mnc output files).
893    o genmake2: disable pkg/profiles if netcdf test fails.
894    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
895    o move call to cal_readparms up to make calendar parameters/variable available
896      to all packages
897    
898    checkpoint58v_post
899    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
900      useDynP_inEos_Zc tested.
901    o pkg/exf: changes to properly interpolate/mask/scale initial fields
902    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
903      and portions thereof.  See read_cs.txt for description and examples.
904    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
905      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
906      following the great-circle arc between those 2 points.
907    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
908      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
909    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
910     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
911     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
912     - still needs work (not working with some options ; efficiency to improve)
913       and serious testing.
914     - use this scheme for temperature & salinity in 2 advection test exp.:
915       advect_xy & advect_xz, respectively.
916    
917    checkpoint58u_post
918    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
919    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
920    o testreport: add option "-skipdir" to skip some test.
921    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
922      momentum calculation.
923    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
924    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
925      remove checkpoint.F and the_correction_step.F (no longer used);
926      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
927    o add option (linFSConserveTr) to correct for tracer source/sink due to
928      Linear Free surface
929    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
930    o pkg/thsice: fix reading mnc-pickups
931    
932    checkpoint58t_post
933    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
934    o pkg/mdsio:
935     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
936       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
937       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
938     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
939     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
940       either MDS_READ_FIELD or MDS_WRITE_FIELD )
941     - new S/R (to replace MDSWRITEMETA), which allows to write more
942       informations (variable names, time ...) to meta files.
943     - modify rdmds.m to give back the meta file content.
944    o pkg/diagnostics: change vertical interpolation to be safer, and more
945       flexible (define p-levels to interpolate to in data.diagnostics);
946      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
947       diagnostic pointer.
948    o pkg/seaice: more cleaning up of seaice_growth, added many comments
949    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
950    o fix multi-category seaice:
951     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
952       SEAICE_MULTICATEGORY
953     - fix short wave heat flux
954    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
955       and allow to use EVP solver. Change forward lab_sea: test both EVP
956       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
957    o Initial check-in of lab_sea adjoint
958      (very similar to natl_box_adjoint/code_seaice)
959      * used C-grid and EVP solver
960      * used KPP, GM/Redi
961      * uses inAdExact=.TRUE.
962      * gradient checks fail for both ADM and TLM
963        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
964        f.d. gradients actually seem more problematic than ADM, TLM gradients;
965        issue is related to forward mismatch between g77 an ifort
966    o pkg/seaice: overhaul of thermodynamics
967     - growth.F and groatb.F are replaced by new routine seaice_growth.F
968     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
969     - move a few global fields out of SEAICE.h into seaice_growth.F and
970       make them 2D (FICE/QNETO/ ...)
971     - remove FO (it is the same as QNETO)
972     - introduce a few local fields to avoid modifying external fields such
973       as atemp, etc.
974    
975    checkpoint58s_post
976    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
977      changed exf_set_gen.F so that
978        genperiod=0 means input file is one time-constant field and
979        genperiod=-12 means input file contains 12 monthly means
980    o CG2D: use pre-computed solver main-diagonal (stored in common block);
981      this affects truncation error ; generate new output file for exp. which
982      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
983        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
984        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
985        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
986        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
987        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
988    o start implementation of deep-atmosphere and anelastic formulation
989    o verification: remove 2nd copy of input files and use script "prepare_run"
990      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
991    o mom_common/vecinv/fluxform: fix a few initialisation isssues
992    o profiles: fix for multithreaded case
993    
994    o diagnostics: rename few diags:
995      s/'PRESSURE'/'RCENTER '/g
996      s/'TICE    '/'oceFreez'/g
997      s/'TAUX    '/'oceTAUX '/g
998      s/'TAUY    '/'oceTAUY '/g
999      s/'SWFLUX  '/'oceQsw  '/g
1000      s/DIFx/DFxE/g
1001      s/DIFy/DFyE/g
1002      and add few ocean-forcing diagnostics:
1003      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1004    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1005      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1006      as actual snow thickness.  It now refers everywhere to effective snow
1007      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1008    
1009    checkpoint58r_post
1010    o modifications to pkg/seaice/growth.F, which change results of
1011      lab_sea experiment: fixes pertain to melting snow over open water, to
1012      masking EVAP under sea ice, and to using the correct AREA variable for
1013      computations of EVAP, PRECIP, HSNOW, and GHEFF
1014    o add ability to read bathy, salt, and theta using MNC (off by def)
1015    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1016      both are turned off by default and do no change any results
1017    o seaice advection with pkg/thsice: a step toward the use of non-linear
1018      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1019    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1020      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1021      in natl_box (affects results @ truncation level: update output.txt)
1022    o multi-threading and IO:
1023      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1024      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1025        (needed to work with SingleCpuIO): tested in all verif. exp.
1026    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1027      affects the results (but none of the verification test uses this scheme).
1028    o Adding some pkg/diagnostics capability to pkg/seaice
1029      (will certainly be subject to changes)
1030    o ctrl: adding new control variables:
1031      lwflux, lwdown, evap, snowprecip, apressure, runoff
1032    
1033    checkpoint58q_post
1034    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1035      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1036      high_res_cube configuration by 4% on Columbia.
1037    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1038      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1039      dynamical allocation (seems to work in multi-threaded).
1040    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1041      single CPU io) so that TAF does not have to see EESUPPORT.h
1042    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1043    
1044    checkpoint58p_post
1045    o obcs: stop if obcs is used with useCDscheme = .true.
1046    o shelfice:
1047     - fix a sign error so that no slip at shelfice interface works
1048     - remove stop for combination non-hydrostatic code and shelfice. That does
1049       not mean, that the results are correct, but at least they are numerically
1050       stable
1051    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1052    o added adjoint exch routined for all exch*3d* routines
1053      and updated flow directives
1054    
1055    checkpoint58o_post
1056    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1057      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1058    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1059      and clean-up reading/writing of pickup files.
1060    o fix local version of read/write pickup (NH part) in rotating_tank/code
1061    o simplify EXCH interface:
1062     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1063     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1064    o added the regrid package
1065    o shelfice:
1066     - add a simple boundary layer scheme to reduce noise
1067     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1068    
1069    checkpoint58n_post
1070    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1071       local variable (not in common block).
1072    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1073      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1074      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1075        to work with SingleCpuIO.
1076    o add "_d 0" to real constant of pkg/cfc subroutines ;
1077       update exp. cfc_exemple & tutorial_cfc_offline output files.
1078    o multi-threading and IO:
1079      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1080        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1081      - barrier before and after reading.
1082      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1083      - avoid using MDS_WRITELOCAL for LAND pkg output.
1084      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1085        common-block variables ; Allows multi-threading with master-thread IO.
1086    o change default MAX_NO_THREADS from 32 to 4 ;
1087      and stop cleanly when MAX_NO_THREADS is too small.
1088    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1089    
1090    checkpoint58m_post
1091    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1092       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1093    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1094       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1095       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1096    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1097        add MITgcm_tutorials (= code + all the tutorials)
1098    o ecco, option to compute cost for total ssh (mean+anom)
1099    o consistent with addition of ptracer and ssh in pkg/profiles
1100    o profiles: adding ptracer and ssh
1101    o testreport: change multi-test output-file name
1102      (from output.txt.{name} to output.{name}.txt)
1103    o profiles: now ok for mutli-tiles case
1104    o seaice: add 4 parameters for different advection schemes for area,
1105      (effective) seaice thickness, enthalphy, and snow height. Their default
1106      is the standard parameter SEAICEadvScheme
1107    o calc_gw:
1108     - add cosFacU in zonal viscous flux (harmonic.visc.).
1109     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1110       of tutorial_plume_on_slope.
1111    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1112    o calc_gw: true flux-form, account for horizontal grid spacing.
1113      update rotating_tank results, but not plume_on_slope (affected at
1114      truncation level, 11 digits).
1115    
1116    checkpoint58l_post
1117    o calc_gw:
1118     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1119     - remove side-drag for now (need to fix it); update plume_on_slope results.
1120     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1121    o commit code to make SST/SSS weights spatially variable
1122      (based on either variable in-situ or variable initial T/S weights)
1123    o pkg/ecco:
1124      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1125        now based on horizontally varying weights wthetaLev, wsaltLev
1126      * cost_averagesflags now returns year indices in addition to day, month
1127      * sflux balance is performed on annual basis
1128        (sflxumm, sfluxmm2, bal_sfluxmm)
1129      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1130        including separate counting and multipliers
1131    o pkg/rbcs
1132      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1133    
1134    checkpoint58k_post
1135    o testreport:
1136     - always build in dir. "build" (if not there, mkdir build instead of building
1137       & running in input)
1138     - run in dir run (if it exists), in build otherwise.
1139     - call prepare_run (if input/prepare_run exists)
1140     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1141    o pkg/exf modifications to interpolation and rotation routines for more
1142       reasonable treatment of North Pole singularity: for tracers North Pole
1143       value is set to northernmost zonal-mean value, for zonal velocity it is
1144       set to zero, and for meridional velocity it is set to northernmost value.
1145    o pkg/exf/exf_check_range.F
1146     - add tile index to diagnostics and move stop statement to the very
1147       end of the routine.
1148    o pkg/diagnostics: (diagnostics_main_init.F)
1149      define title of isomorphic variables according to the current config.
1150    o pkg/thsice with pkg/seaice dynamics:
1151    - fix domain of computation (interior only, required for exf) and do exchanges
1152    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1153    o towards a standard way of dealing with multi-threading in MONITOR
1154      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1155    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1156       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1157    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1158    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1159    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1160       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1161    o tracer advection:
1162     - clean-up and simplify calc_common_factors.F
1163     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1164       advection subroutine (but still not used within DST advection S/R)
1165    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1166    
1167    checkpoint58j_post
1168    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1169      from file (collects calls previously in FORWARD_STEP)
1170    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1171    o adjoint store dir. adjusted accordingly
1172    o genmake2
1173      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1174    
1175    checkpoint58i_post
1176    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1177      on wind stress (SEAICEstressFactor defaults to 1.)
1178    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1179      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1180    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1181      on CS-grid: no longer loosing mass.
1182    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1183    o pkg/ggl90: fix sloppy output and fix a bug
1184    o pkg/seaice: added SEAICEuseEVPpickup parameter
1185      - Set to false in order to start EVP solver with
1186        non-EVP pickup files when using SEAICEuseEVP
1187      - fix sign error in diffusion in seaice_calc_rhs
1188    
1189    checkpoint58h_post
1190    * Modifications for bottom topography control
1191      o replace hFacC by _hFacC at various places
1192      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1193      o add non-self-adjoint cg2d_nsa
1194      o update autodiff support routines
1195      o re-initialise hfac after ctrl_depth_ini
1196      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1197    * Adding verification for 5x5 box (4-layer) bottom topography control
1198    
1199    checkpoint58g_post
1200    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1201       used for mean seasonal cycle, mean diurnal cycle); add an example
1202       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1203    o pkg/ggl90:
1204      - add parameter (minimum surface kinetic energy)
1205      - fix bug (avoiding division by zero)
1206    o couple pkg/thsice to pkg/seaice:
1207      - modify advection in seaice to accomodate new scalar fields to be advected
1208      - only muliDimAdection scheme work with seaice/thsice
1209      - mapping of thsice-variables to seaice-variables, back and forth
1210      - does not break the verification experiments, but does not give the
1211        desired results either
1212    o pkg/seaice
1213      - make (default) second order advection a bit less confusing?
1214    
1215    checkpoint58f_post
1216    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1217      to pkg/seaice):
1218      - new routines thsice_map_exf and thsice_get_exf provide the interface
1219      - add an additional formal parameter to thsice_solve4temp
1220    o pkg/exf:
1221      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1222      - correct Stefan-Boltzmann constant
1223      - new parameter for longwave surface emittance
1224      - separate some stuff from exf_bulkformulae into new routines  
1225        exf_radiation, exf_wind
1226      - add new parameters and constants: longwave emissivity for ocean, ice
1227        and snow, evaporation parameters over ice
1228      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1229        either wind from stress or stress from wind
1230    o pkg/thSIce:
1231    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1232    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1233       and THSICE_CALC_THICKN
1234    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1235    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1236      to make debugging easier.
1237    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1238    o pkg/bulk_force:
1239      - clean-up comments and parameters ;
1240      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1241    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1242      generate new output for test-experiment: aim.5l_cs.thSI
1243    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1244      testreport accordingly
1245    
1246    checkpoint58e_post
1247    o SEAICE_CGRID adjoint done
1248    o R_STAR adjoint implemented.
1249      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1250      * need to sort out init. of h0facc, etc.
1251    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1252      to be able to use it in pure forward.
1253    
1254    checkpoint58d_post
1255    o upgrade simple test-experiment to tutorial example:
1256     step.1: duplicate the experiment and (step.2) will remove the old copy.
1257      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1258      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1259      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1260      tutorial_global_oce_biogeo    <- copy of dic_example
1261      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1262      tutorial_plume_on_slope       <- copy of plume_on_slope
1263      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1264      tutorial_global_oce_optim     <- empty for now (David ?)
1265      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1266     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1267    o correct a sign problem in cost_scat.F
1268    o obcs and ptracers: fix boundary conditions for advections schemes
1269      with larger stencil
1270    o thsice adjoint: start
1271    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1272      completeness
1273    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1274      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1275    o ptracers adjoint:
1276      * avoid extensive recomputatations
1277      * fix missing re-init. of gptr (missed by TAF)
1278    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1279      me to turn off the excessive output to STDOUT that this package produces
1280    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1281      and add those terms in Vector-Invariant formulation.
1282    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1283      if the control period (xx_hfluxperiod etc) is 0
1284    o in profiles pkg, clean routines and fix details
1285    o in ecco pkg, reading ssh data:
1286      fix problem in case the model does not start at iter0=0
1287    o fix mnc-pickup/restart for ptracers
1288    o new package prifiles:
1289      code to compute profile-based cost by Gael Forget
1290      (modifs in ecco, ctrl, autodiff)
1291    o Benign bug fix in initialization (spotted by M. Mazloff) of
1292      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1293    
1294    checkpoint58c_post
1295    o adjoint: finish NLFS adjoint and provide reference output in
1296      verification/global_ocean.90x40x15/results_ad_nlfs
1297    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1298      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1299      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1300      with SEAICE_CGRID defined.
1301    o move calendarDumps from "data" to "data.cal" and clean-up the code
1302      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1303    o add useEXF & useCAL flags (for now, set in hard-coded way)
1304    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1305      (were missing in NH mode, and wrong in quasihydrostatic mode).
1306      waiting for Chris updated version of calc_gw to add those CALLs.
1307    o fix bug in quasihydrostatic S/R ;
1308      add a test for this option: global_ocean.90x40x15.qshyd
1309    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1310      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1311    o add on/off flag useOffLine for package OFFLINE
1312    o seaice:
1313      - modify advection so that it works also on the C-grid
1314      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1315        problem in multi-tile runs with C-grid
1316      - add flags for clipping ice velocities and/or masking solver forcing
1317      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1318        C-grid solver
1319      - added a few comments to seaice_diffusion.F
1320      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1321        are now exclusive)
1322      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1323        required re-ordering the code a little:
1324       + make DAIRN global variable (defined in SEAICE)
1325       + move computation of the viscosities eta and zeta into a new separate
1326         routine (because I need to recompute them in seaice_ocean_stress.F)
1327    
1328    checkpoint58b_post
1329    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1330      update output.txt of exp. aim.5l_cs.thSI
1331    o various mnc cleanups and improvements:
1332      + shrink lookup tables by factor of ~4
1333      + better error reporting when running out of lookup space
1334      + able to handle longer path/file names (up to 500 chars)
1335    o adjoint:
1336      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1337      - TBD: "hidden" mom_vecinv recomp. in dynamics
1338    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1339     (allow to differentiate between forcing components using new integer flags:
1340      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1341     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1342    o ecco
1343      - enable trend removal from SSH anomaly obs.
1344    o adjoint
1345      - a fix for PmEpR when #undef EXACT_CONSERV
1346      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1347      - try to fix "hidden" recomp. in forward_step for NLFS
1348        (NLFS seems broken sometimes after I checked it in)
1349    o seaice:
1350     - add c-grid version of the dynamic solver:
1351       + three new routines that are the c-grid substitute lsr, dynsolver
1352         and ostres
1353       + put a few fields that were local to dynsolver into global common
1354         blocks, so that I can move the computation of stresses etc into
1355         seaice_lsr (saves coding but may break the adjoint).
1356     - replace more hardwired parameters by runtime parameters
1357     - add ice masks that mask the rhs of the implicit solvers where there
1358       is no ice (commented out in seaice_dynsolver, because i am not sure
1359       if this works properly), eventually this should replace the clipping
1360       of ice velocities in seaice_dynsolver to +/-40cm/s.
1361    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1362      include it only where its needed
1363    o move balancing of fluxes before the call of external_forcing_surf
1364    o seaice:
1365      - correct units of turning angles (now they are really in degrees)
1366      - move computation of GWATX/Y out of main routine into dynsolver
1367      - initialize GWATX/Y in seaice_init
1368    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1369      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1370    o seaice: add runtime flags for turning angles (default to zero)
1371    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1372      and trend from exf forcing and ctrl control adjustments
1373    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1374      (since checkpoint57x_post)
1375    o change the default rotation period to 86164.s = the Earth rotation
1376    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1377      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1378    o seaice advection: add code for choosing between the default (2nd order
1379      central differences) and multiDim advection schemes provided by
1380      pkg/generic_advdiff
1381    o seaice:
1382      - removed all references to SEAICE_GRID.h fields from
1383        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1384        (cubed-sphere configuration will change a little)
1385      - grid computations in seaice_init are obsolete now.
1386      - cleaned up code a little so that is easier to read (hopefully).
1387      - added new (better?) discretizations of default advection and diffusion
1388        (turn on with SEAICEuseFluxForm)
1389      - replace 1 in 3d global fields by kSurface in growth.F
1390      
1391    checkpoint58a_post
1392    o seaice:
1393      - bug fix in advect.F
1394    o shelfice:
1395      - separate shelfice load anomaly from pload (breaks with time
1396        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1397        Its default is 0., but it may be computed more cleverly from (unknown)
1398        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1399        done offline. A good approximation of the pressure load anomaly is
1400        necessary to avoid large initial adjustment processes underneath
1401        deep-reaching shelfice.
1402      - small fix in ISOMIP shelfice_thermodynamics
1403      - add more sophisticated thermodynamics of Hellmer (1989), this is
1404        now the default
1405      - give a few constants more intuitive names
1406    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1407      if bulk formulae are used in long integration (especially EmPmR). Turn
1408      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1409      if balancePrintMean, the imbalance that is substracted is printed to
1410      STDOUT.
1411    o fix bug (typo) in obcs_apply_eta.F
1412    o add a new package shelfice which enables us to model the circulation
1413      underneath shelf-ice with draughts of hundreds of meters.
1414     - works
1415     - to do: + include improved thermodynamics
1416              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1417                instead of new field kTopC
1418              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1419                instead of new field R_shelfIce and new code in ini_depth.F
1420                and ini_mask_etc.F?
1421              + adjust vertical mixing schemes?
1422    o seaice pkg:
1423     - add a cpp-flag to include a simple formula for a salinity dependent
1424       freezing point of sea water at the surface
1425     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1426       meridional stresses are now different (and hopefully correct)
1427    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1428       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1429       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1430    o pkg/diagnostics: add options and parameters for regional-statistics
1431       diagnostics ; define regions by reading a region-mask from a file
1432       (might add other options later)
1433    o pkg/bulk_force:
1434     - add option and parameters to use AIM surface-flux formulae.
1435     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1436       others forcing fields (defined in PARM05, parameter file "data") are loaded
1437       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1438     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1439     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1440     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1441       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1442     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1443    
1444    checkpoint58
1445    o add "--embed-source" option to genmake2 which, when the supporting
1446      tools can be compiled (as determined by genmake2) will turn on the
1447      embed_files package which then embeds the entire MITgcm source code
1448      (*.[fFhc] + Makefile) used for the build within the executable
1449      - requested by CNH but off by default
1450      - adds a paltry <9MB to the mitgcmuv executable in most cases
1451      - only writes the output when useEMBEDSRC in eedata is true
1452    o clean up 3-dim. relaxation codes:
1453      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1454      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1455      * Thanks to Tom Haine for testing!
1456    
1457    checkpoint57z_post
1458    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1459      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1460    o fix the pickup behavior for obcs in combination with ptracers
1461    o fix a bug in ptracers_external_fields_load
1462    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1463      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1464    o transfered surface NH pressure to eta field (if exactConserv).
1465    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1466         and update lab_sea output.txt file.
1467    o completing 3-dim. relaxation code: additional term
1468         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1469      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1470      * At compile time, in "EXF_OPTIONS.h" set
1471          #define  ALLOW_CLIMTEMP_RELAXATION
1472          #define  ALLOW_CLIMSALT_RELAXATION
1473      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1474          tauThetaClimRelax3Dim = 15552000.0,
1475          tauSaltClimRelax3Dim  = 15552000.0,
1476      * 3 cases:
1477          1) Use a constant-in-time 3-dim. field
1478          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1479          3) Real-time relax. to time-evolving prescribed field
1480    o Adding Laplacian-type smoothness constraint on
1481      initial and boundary (forcing) controls (ic, bc)
1482      * enable at compile-time via
1483        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1484      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1485      * Absolute scale somewhat unclear so far
1486      * no area weighting was included since no other cost term does so far
1487    
1488    checkpoint57y_post
1489    First step for a NLFS adjoint
1490    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1491    o new init. routines for calc_r_star, calc_surf_dr
1492    o still need to deal with ini_masks_etc
1493    o testreport seemed happy
1494    checkpoint57y_pre
1495    
1496    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1497    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1498    o add new offset feature to offline pkg (plus minor cleanup)
1499    o cfc fixes for final year of integration
1500    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1501      be in GCHEM_OPTIONS).
1502    
1503    checkpoint57x_post
1504    o fix testreport Pb in multiple test experiment.
1505    o cleanup our namelist syntax in verification:
1506      - make it more F95 standards compliant (some work still needed)
1507      - allows the vast majority of our tests to work with gfortran
1508    o Non-Hydrostatic:
1509     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1510     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1511    o Allow to apply AB on T,S rather than on AB(gT,gS):
1512     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1513     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1514       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1515     - need a "clever" read_pickup to restart from the other AB formulation
1516    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1517    o remove some unused variables (reduces number of compiler warnings)
1518    o adjoint
1519      * Disable useVariableViscosity for adjoint for time being
1520        (there are a number of extensive recomputations)
1521      * Initialize certain variables needed for adjoint
1522    
1523    checkpoint57w_post
1524    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1525                 fix the singleCpuIO RS version of MDSWRITEFIELD
1526       and add a WARNING if using globalFiles=T with multi-processors.
1527    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1528      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1529    o tracer advection scheme:
1530      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1531       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1532       was not very convenient).
1533      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1534       (further tests needed for the implicit DST & Flux-Limiter schemes).
1535    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1536      and sRef for convenience, handy, when you want to initialize
1537      ptracers in a large domain with a constant non-zero value. Also,
1538      untangle ptracers_init.F a little.
1539    
1540    checkpoint57v_post
1541    o change dome exp. to use variable viscosity in side-drag terms.
1542    o remove all the files from the cfc_offline test since they are now
1543      incorporated into tutorial_cfc_offline which has been producing
1544      identical results for a few days of testing
1545    o add new parameter: sideDragFactor to enable half-slip-side BC
1546      and change side-drag S/R to use viscosity from mom_calc_visc
1547      (can switch back by setting sideDragFactor=0.); affects results at
1548      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1549       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1550    o vorticity & strain are now computed without masking, to account for
1551      no-slip-side BC in variable viscosity calculation ; mask is applied
1552      anyway later on, before computing advection/coriolis terms.
1553    o modify exp4 to test new obcs support for reading from external files
1554      and for passive tracers
1555    o fix behavior of ptracers_monitor when monitor output is written to a
1556      netcdf-file; still not independent of monitor.F (writes in the same
1557      file).
1558    o change default value of tRef (put a uniform, meaningful value for ocean
1559      & atmos) and initialize sRef (was missing, as Martin mentioned).
1560    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1561      to be proportional to enstrophy dissipation length.  Thus,
1562       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1563      This is now consistent with Smagorinsky and with the manual.
1564    
1565    checkpoint57u_post
1566    o OBCS and PTRACERS: add open boundary support for passive tracers
1567      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1568        OB-values from file; this is not different from the way theta and salinity
1569        are treated
1570      - however, Orlanski-radiation conditions are not supported, and the model
1571        will stop if you use pTracers and Orlanski at the same time.
1572      - beefed up the rountine obcs_external_fields_load: now only those open
1573        boundary values are overwritten with values from files for which there
1574        are really files, otherwise the OB-fields remain untouched. This makes
1575        it possible to use different OBs at different ends of the domain (as
1576        with EXF)
1577    o reduce number of exch calls in shap_filt (s2).
1578    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1579      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1580    
1581    checkpoint57t_post
1582    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1583    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1584      same truncation, independent of the face number: affects affects several
1585      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1586    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1587      note that biharmonic viscosity + no-slip was not tested in any experiment.
1588    o fix bug in non-linear free-surf side-drag ; generate new output for
1589      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1590    o make mnc honor the writeBinaryPrec flag for most kinds of output
1591    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1592    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1593      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1594    o add brackets in multi-terms sum to get same truncation, independent of
1595      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1596      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1597    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1598      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1599      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1600      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1601      Suggested values of viscosity parameters found in mom_calc_visc.
1602      Many new viscosity diagnostics available.
1603    
1604    checkpoint57s_post
1605    o Add clearing-house for viscosity calculations, mom_calc_visc and
1606      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1607      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1608      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1609      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1610      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1611      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1612      ViscAhStrain and viscAhTension are now retired.
1613    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1614    o In response to JMC's bug report, genmake2 now ignores any soft-links
1615      that it finds in the *current* directory when searching for files.
1616      Soft-links found in any other source directories will still work as
1617      they did before.
1618    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1619      a C routine to unlimit the stack size
1620    o mnc-ify pkg/aim snapshot vars
1621    o mnc-ify pkg/land as requested by Daniel
1622    o various changes to mnc including:
1623      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1624      - output can now be grouped so that all files within a group
1625          change the ITER portion of their names in lock-step together
1626      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1627          and works with both EXCH1 and EXCH2 (but needs more testing)
1628      - writing works for all verification test cases w/ g77 on Linux
1629    
1630    checkpoint57r_post
1631    o make MNC variable initialization happen earlier
1632    o add diagnostics for (almost) each term of the momentum Eq.
1633    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1634    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1635    o remove MINIMAL_TAVE_OUTPUT option ;
1636      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1637    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1638      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1639    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1640    o add time-dependent SST, SSS control
1641    o cost terms in ecco/ modularized (new cost_generic.F)
1642    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1643    o new infrastructure for seaice model vs. obs misfits in seaice/
1644      * driver from the_main_loop.F is seaice_cost_driver.F
1645      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1646      * gradient check in Exp. 6a of natl_box_adjoint/
1647    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1648      (see README file)
1649    
1650    checkpoint57q_post
1651    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1652    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1653      - bug was reported by Jean-Michel and Ian Fenty
1654    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1655      update exp. cpl_aim+ocn output.
1656    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1657      Needed for high-res. runs with large global files
1658      to be able to limit tapelev size
1659    o Changed some tests for adjoint:
1660      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1661      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1662      * global_ocean.90x40x15/ back to default 3-level checkpointing
1663    o Modifications to enable scripted COMMON to MODULE conversion
1664      * verification/OpenAD/code/ has necessary scripts and description;
1665      * converts, compiles and runs successfully;
1666    
1667    checkpoint57p_post
1668    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1669    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1670      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1671    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1672    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1673      (was already the case for dissipation with mom_vecinv,
1674       and also the case for grad.PhiHyd when staggered-timeStep)
1675      This will allow to put dissipation out-off the AB time-stepping.
1676     Unfortunately, affects truncation error. Update output of exp. that "fails"
1677      (cg2d matching number) and leave the others for later: front_relax(10),
1678      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1679      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1680    
1681    checkpoint57o_post
1682    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1683      (2) its ready to be documented during the 20050801 DocFest
1684    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1685      for ideal_2D_oce and lab_sea on linux_ia32_g77
1686    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1687      in global1x1_tot/code_seaice_adj to access indices 32, 33
1688      (worth another tag)
1689    
1690    checkpoint57n_post
1691    o adding precip control xx_precip 32
1692    o adding swflux control xx_swflux 33
1693    o Replacing 10 forcing penalty cost routines by 1 generic.
1694    o Implementing partitioning in time-mean and variable adjustment
1695      for atmos. state.
1696    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1697  o in natl_box_adjoint:  o in natl_box_adjoint:
1698    * updated: results_bulk/    * updated exp 1 to 10
1699    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
1700    o updated global1x1/*_seaice_adj/
1701      to incorporate latest changes
1702    o enable useSingleCpuIO for mdsio vector routines
1703      (applies in particular to tapelev I/O)
1704    o removed inefficient K-loop in all active_file*control*.F
1705    
1706  checkpoint57m_post  checkpoint57m_post
1707  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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