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-revision 1.2085 by gforget,
Tue Oct 21 14:22:26 2014 UTC
+revision 1.2351 by mmazloff,
Sat Sep  2 22:25:46 2017 UTC
 Line 4 
 $Name$
      Notes on tags used in MITgcmUV
      ==============================
- o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
+ o pkg/bling:
-   AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
+   - bling_production: Fix typo in calcium carbonate uptake. Also rearranging and cleaning
-   ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
+ o model/src:
-   approach where CPP_OPTIONS.h includes an omnipotent
+   - move k loop inside correction_step.F (+ update calling S/R)
-   ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
+   - collect implicit pressure gradient tendencies in local 2-D array;
- o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
+     affect results (at machine truncation level) when using 3-D solver; update
-   ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
+     output of exp.: exp4 (x1), global_ocean.cs32x15 (x2),hs94.cs-32x32x5.impIGW,
+                     rotating_tank, short_surf_wave,tutorial_deep_convection (x2)
+                     & tutorial_plume_on_slope.
+ checkpoint66j (2017/08/15)
+ o pkg/ptracers:
+   - fix surface forcing under ice-shelf (useShelfIce=T).
+ o pkg/atm_phys:
+   - use hFac weighted average when applying A-grid atm-phys momentum tendency
+     to C-grid dynamics; this ensures wind-stress match mom tendency.
+ o eesupp/src:
+   - change default for opening scratch files to avoid STATUS='SCRATCH'
+   - close scratch files with STATUS='DELETE'
+   - changes affect eeset_parms.F and open_copy_data_file.F and many routines
+     that read namelists (because they close the scratch files)
+   - you can revert to old default by setting USE_FORTRAN_SCRATCH_FILES
+     in CPP_EEOPTIONS.h (tested in ideal_2D_oce/code & lab_sea/code_ad)
+ o pkg/atm_phys:
+   - fix unset arguments in (unused) S/R surface_flux_0d.
+ o eesupp/src:
+   - add argument "procId" to S/R EESET_PARMS to fix  scratchFile1 & 2 setting
+     (case TARGET_BGL or TARGET_CRAYXT) for early call (from eeboot_minimal.F):
+     called with myProcId in eeboot.F and with mpiMyWId in eeboot_minimal.F
+ o pkg/streamice:
+   - remove blank between _EXCH_XY_RL and "()", which my Apple Xcode
+     preprocessor /usr/bin/cpp cannot interpret; 3 instances in total in
+     streamice_driving_stress_fd.F and streamice_advect_2dtracer.F
+ o pkg/diagnostics:
+   - new option to allow to cumulate thickness-factor (hFac) weighted field
+     (if field permitted); implemented by changing sign of "jdiag" pointer
+     (> 0: cumlulate field, < 0: cumulate hFac weighted field).
+     a) restricted to 3-d (Nr levels), level centered diagnostics at U,V or Cell
+        center position (gcode(2)='U','V','M' & gcode(3,5,9:10)='R',' ','MR')
+     b) for now, activated by setting fileFlags 3rd character to 'h'.
+ checkpoint66i (2017/07/18)
+ o pkg/cheapaml:
+   - add parameter "useRelativeWind", default set to False; this change the
+     previous setting which was always using relative wind.
+ o add hooks for the Parallel Data Assimilation Framework PDAF
+     (http://pdaf.awi.de/) in eeboot_minimal.F and the_main_loop.F;
+     to use set CPP-flag USE_PDAF in CPP_EEOPTIONS.h
+ o pkg/exf:
+   - interpolation of vector fields (exf_interp_uv.F): fix bug in calculation
+     of South-Pole mean value.
+   - interpolation near the poles, case where second additional row is at the
+     pole (or beyond the pole and moved to the pole): change first addition row
+     value to a linear interpolation between pole and 1rst (S.pole)/last (N.pole)
+     row (instead of just a copy of it).
+ o pkg/seaice:
+   - prevent JFNK and KRYLOV solvers from trying to reduce a residual of 0
+   - add the option to compute no-slip du/dy, dv/dx (i.e.
+     the offdiagonal strain rate e12) by a second order approximation
+     on the boundary; works only with JFNK, KRYLOV, or EVP solvers, because
+     it is too messy to implement for the implicit LSR matrix.
+     SEAICE_2ndOrderBC = .FALSE. by default
+ checkpoint66h (2017/06/02)
+ o pkg/seaice:
+   - add new routines to compute stress tensor components and stress tensor
+     divergence to be reused in s/r seaice_lsr and s/r seaice_calc_lhs
+   - change names of diagnostics SIsigI/II (commonly used for invariants)
+     to SIsig1/sig2 (more common for principal components) to avoid confusion
+ o pkf/exf:
+   - add a stop if useRelativeWind with un-updated uwind/vwind (e.g., constant);
+     similarly, stop if rotateStressOnAgrid with constant wind-stress.
+ o pkg/seaice:
+   - remove (comment out) diagnostics SIuwind,SIvwind,SIfu,SIfv (duplicate of
+     EXFuwind,EXFvwind,oceTAUX,oceTAUY) and point them to their equivalent.
+   - add diagnostics of wind-stress over seaice (SItaux,SItauy) and seaice
+     fraction weighted wind stress over ocean+seaice (SIatmTx,SIatmTy).
+ o pkg/diagnostics:
+   - small piece of code to rename (old) diagnostics, when namelist is processed.
+ o model/src:
+   - new run-time param (useMin4hFacEdges) to select method for setting hFacW,S:
+     originally, set as minimum of adjacent hFacC factor ; now (new default)
+     computed from rSurfW,S and rLowW,S by applying same rules as for hFacC.
+     Only matters when useShelfIce=T with particular ice-shelf cavity geometry.
+ o pkg/seaice:
+   - add momemtum advection, off by default, still in test phase
+     most of the momentum advection code is adapted and reused from mom_vecinv
+ o pkg/mom_vecinv:
+   - pass these runtime flags:
+     selectVortScheme, highOrderVorticity, upwindVorticity, useJamartMomAdv
+     as formal parameters to s/r mom_vi_u/v_coriolis, mom_vi_u/v_coriolis_c4,
+     so that these routines can also be used in pkg/seaice.
+ checkpoint66g (2017/04/24)
+ o model/src:
+   - more robust ordering of column thickness integral (=Sum_k(drF*hFac) )
+     to get same expression (regarding machine truncation) in different places
+     in ini_masks_etc.F (e.g., rSurfC,W,S is now exactly zero when it should).
+     Update forward output of experiments: global_ocean.cs32x15 (all 5 except
+     viscA4), isomip (x3), tutorial_global_oce_in_p & tutorial_plume_on_slope.
+ o pkg/shelfice:
+   - ALLOW_SHIFWFLX_CONTROL: move setting of maskSHI from shelfice_update_masks.F
+     to shelfice_init_fixed.F
+   - change S/R SHELFICE_UPDATE_MASKS to SHELFICE_INIT_DEPTHS (still called from
+     ini_masks_etc.F for now) to update ocean upper boundary position according
+     to ice-shelf topography (instead of directly updating hFacC).
+ o model/src:
+   - move call to CTRL_INIT & CTRL_ADMTLM from the middle to the bottom of
+     packages_init_fixed.F to allow other pkgs to set mask and weight fields.
+ checkpoint66f (2017/04/06)
+ o model/src:
+   - add specific run-time param to select level of printed plot-field-maps,
+     set by default to debugLevel. Remove internal param "printDomain".
+ o pkg/seaice:
+   - add flag to add snow mass to seaiceMassC/U/V, the default is
+     SEAICEaddSnowMass=.FALSE., not to change previous results
+ o pkg/bling
+   - Bug fix in bling_production regarding unit conversion for diagnostics
+     being put in the wrong place
+ o model/src:
+   - add back recomputation of rSurfW & S to ensure consistent column thickness
+     (needed for rStar) between Sum_k(hFac*drF) and rSurf-rLow, for now only
+     when using pkg/shelfice; was initially added on 2012/06/01 (ini_masks_etc.F
+     revision 1.51) but was removed accidentally on 2014/02/08 (v1.53).
+ o pkg/autodiff:
+   - clean-up "checkpoint.flow"
+ o pkg/rw (Contribution from Jody Klymak):
+     option to set mds file suffix as function of time in simulation:
+     *) new input parameter "rwSuffixType" (read from PARM03 namelist)
+        to select file suffix format; by default (=0), use iteration number;
+     *) add simple routine to return file suffix according to rwSuffixType;
+     *) in model/src and in most pkgs (except: atm2d, fizhi, regrid & streamice),
+        use new S/R to get file suffix, except for debug output file (diagFreq)
+        and pkgs offline & rbcs input files.
+ o pkg/rw:
+   - uniform processing of "I10" suffix across writing fld routines; used to
+     simplify debug writing of cg2/3d_b/x in solve_for_pressure.F & post_cg3d.F
+     (similar to cg3d.F, cg3d_ex0.F)
+ o pkg/mom_vecinv:
+   - highOrderVorticity in selectVortScheme=2 case: fix c4 coeff in splitted
+     vorticity flux (keep same sum in case vBarXm=vBaXp, uBarYm=uBarYp).
+ o pkg/bling:
+   - Many small changes intended to clean the code.
+     Unnecessary ADJOINT_SAFEs removed ;
+     removed BLING_COST.h BLING_CTRL.h bling_cost.F ;
+     diagnostics added.
+ checkpoint66e (2017/03/14)
+ o pkg/exf:
+   - interpolation with #undef EXF_INTERP_USE_DYNALLOC: move buffer size
+     definition outside EXF_PARAM.h in new header file: EXF_INTERP_SIZE.h;
+     use fixed size buffer (passed to S/R EXF_INTERP & EXF_INTERP_UV) to
+     avoid any dynamic allocation ;
+   - S/R EXF_CHECK: add new check & stop when file-name is defined but not
+     read-in ; add warning when file is read-in but not used within pkg/exf ;
+     + check for buffer-size (if #undef EXF_INTERP_USE_DYNALLOC).
+   - update exf_summary.F (print {FLD}RepCycle).
+ o verification/global_with_exf:
+   - switch on exf interpolation in AD test (just like the forward test)
+ o pkg/mom_vecinv:
+   - add storage directives to avoid recomputations within mom_vecinv.F
+     which were generating seg. fault with gfortran -devel
+ o pkg/ctrl, pkg/smooth:
+   - initialize array halos which were generating seg. fault with
+     gfortran -devel in adjoint mode
+ o pkg/exf:
+   - for each input field, enable to specify a field specific repeat-cycle
+     ({FLD}RepCycle) which defaults to pkg/exf main "repeatPeriod".
+ o verification/lab_sea:
+   - update AD results of primary test and noseaicedyn test after switching
+     to new version of TAF (5.3.13 vs 5.3.2 before); agreement with gradient
+     check stays about the same.
+ o pkg/exf:
+   - fix bug in exf_zenithangle.F for cases select_ZenAlbedo > 0 with useCAL=T.
+   - exf_check: MAX_LAT_INC need only be "loc_nlat-1", not equal to loc_nlat
+ o pkg/bling, USE_EXFCO2 code:
+   - add parameter "apco2RepCycle" (set to pkg/exf "repeatPeriod" by default);
+   - update calls to EXF S/R (use new version: EXF_INIT_FLD & EXF_SET_FLD).
+ o pkg/exf:
+   - rename S/R EXF_INIT to EXF_INIT_VARIA ;
+   - add arguments: fldName (for debug msg) and fldRepeatCycle (set to
+     repeatPeriod) to S/R EXF_SET_UV and to S/R EXF_SET_GEN (renamed EXF_SET_FLD)
+     and update calls in pkg/exf calling S/R (exf_getffields.F & exf_getclim.F) ;
+   - add argument: fldName (for debug msg) to S/R EXF_INIT_GEN (renamed
+     EXF_INIT_FLD) and update calls in exf_init_varia.F
+   - For now, for backward compatibility, keep a simplified version of S/Rs
+     EXF_SET_GEN & EXF_INIT_GEN in file exf_set_gen.F
+   - add and pass new arguments: fldName (for debug msg) and fldRepeatCycle
+     to S/R EXF_GetFFieldRec ; update calls in pkg/obcs/obcs_exf_load.F
+ o tools/genmake2:
+   - replace "bc -l" (only used once) by "expr" (already used).
+ o verification/global_ocean.cs32x15:
+   - turn off pkg/cal (useCAL=F) in secondary FWD exp. "icedyn".
+     Note: exf setting (data.exf) can be compared to other exf secondary exp
+     "seaice" (kept with useCAL=T) which has same time dependent forcing.
+ checkpoint66d (2017/02/13)
+ o pkg/exf:
+   - remove setting of useCAL=T when using pkg/exf (useEXF=T); add warning
+     early on (in packages_boot.F) to stress this change in pkg setting.
+   - In (most) verification exp. that use pkg/exf, add useCAL=.TRUE. to data.pkg
+ o model/src:
+   - move call to ecco_phys to end of time step; this may induce minor
+     cost function changes by shifting time averages by one time step
+     for some variables; this revision resulted in changed adjoint results
+     in MITgcm_contrib/verification_other/global_oce_cs32
+ o pkg/exf:
+   - Change EXF_READ_EVAP to only activate code within #ifdef ALLOW_ATM_TEMP ;
+     this prevents to read evap when ALLOW_ATM_TEMP is undef and other fields,
+     e.g. precip, are not available.
+ o pkg/flt:
+   - flt_init_varia.F: use pickupSuff if specified
+   - add code (within #ifdef DEVEL_FLT_EXCH2) and test case as a first,
+     intermediate, step towards completing pkg/exch2 support within pkg/flt;
+     ifdef DEVEL_FLT_EXCH2 then:
+     - flt_init_fixed.F: comment out stop
+     - flt_exch2.F: conserve ipart, jpart (grid coordinates)
+     - exch2_recv_get_vec.F: transform ipart, jpart (grid coordinates)
+     - flt_mapping.F: attempt to fix longitude diagnostic near date-line
+     - flt_init_varia.F: hack initialization (for testing purposes w. LLC90)
+ o tools/genmake2 & pkg/pkg_depend:
+   - define new type of pkg dependency rule ("=pkg_x"), less strict than
+     the "+" rule, that add the dependent pkg (pkg_x) unless it's disabled
+     (-pkg_x in packages.conf).
+   - change pkg/exf dependency rule from "exf +cal" to "exf =cal";
+   - add "+cal" to dependency list of pkg/ecco (needed to compile).
+   - simplify FWD experiment "offline_exf_seaice" by removing pkg/cal.
+ o utils/matlab:
+   - adding ocean_basin routines for defining basin masks.
+ o pkg/exf:
+   - new S/R EXF_GETFFIELD_START replacing EXF_GETFIELD_START, but with more
+     arguments, allowing to check (and stop) if parameter setting of
+      {FLD}startdate1 & date2 and of {FLD}StartTime are consistent with
+     useCAL= T or F. For now, kept a simplified version of EXF_GETFIELD_START
+     for backward compatibility.
+   - change accordingly calls in exf_init_fixed.F + default {FLD}StartTime in
+     exf_readparms.F ; apply same changes to pkg/icefront (for SGRunOff field).
+ o pkg/bling (USE_EXFCO2 code):
+   - fix missing setting of apco2StartTime according to apco2startdate1 & date2
+     by adding a call to S/R EXF_GETFFIELD_START.
+ o pkg/exf:
+   - allows to compile without pkg/cal (but disabled by current dependency
+     rules, i.e., default "pkg/pkg_depend"). Minimal changes to enable to
+     run with useCAL=F ; this involves setting directly {FLD}StartTime instead
+     of {FLD}startdate1 & date2 ; consistency check not yet coded.
+ o verification/global_ocean.cs32x15:
+   - fix all data.exf for a shift of 1 day in all field startdate1 so that it now
+     corresponds to middle of 1rst month; update outputs (2 fwd + 3 adm + 3 tlm).
+ o pkg/exf:
+   - allow to use EXF_ZENITHANGLE without pkg/cal + simplify (saving some
+     calculations); change FWD experiment global_ocean.cs32x15
+     (#define ALLOW_ZENITHANGLE) to test/check that this code compiles.
+ o pkg/exf:
+   - In preparation for addition to NAMELIST, rename internal (_RL) parameter
+      {FIELD}startdate to {FIELD}StartTime
+     Note: new name also fit better the content, i.e, a start time in second.
+ o eesupp/src:
+   - add 1 argument to S/R EEBOOT & EEBOOT_MINIMAL for interface with ESMF
+ o pkg/exf:
+   - add option ALLOW_READ_TURBFLUXES (and corresponding set of parameters)
+     to allow to read-in Sensible & Latent Heat flux ;
+   - simplify pkg/exf main options:
+) move small piece of code (case ALLOW_ATM_TEMP undef) out of
+        exf_bulkformulae.F into exf_wind.F so that exf_bulkformulae.F is
+        compiled only when both ALLOW_ATM_TEMP & ALLOW_BULKFORMULAE are defined;
+) make call to EXF_RADIATION and to EXF_WIND independent of CPP option
+        ALLOW_BULKFORMULAE which now only applies to S/R EXF_BULKFORMULAE ;
+) improve options documentation in EXF_OPTIONS.h.
+ o pkg/ecco:
+   - cost_gencost_customize.F,ecco.h,ecco_phys.F,ecco_readparms.F, and
+     ecco_summary.F: add passive tracer cost functions to gencost;
+     m_ptracer and m_boxmean_ptracer
+ o pkg/ctrl:
+   - ctrl_map_forcing.F: pass myIter and myTime to ctrl_map_forcing as input
+     parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing; add to list
+     of implemented gentim2d contol parameters: xx_qnet, xx_empmr, xx_qsw,
+     xx_sst, xx_sss, xx_pload, xx_saltflux, xx_fu, xx_fv, xx_fe, xx_fn
+ o model/src:
+   - forward_step.F: pass myIter and myTime to ctrl_map_forcing as input
+     parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing
+ o pkg/exf:
+   - exf_getffields.F: add to list of implemented gentim2d contol parameters:
+     xx_lwflux, xx_swflux, xx_evap, xx_apressure, xx_areamask
+ checkpoint66c (2017/01/19)
+ o verification:
+   - add new option "-src" to testreport to only produce source code (*.f),
+     including taf output src code (if using '-adm'/'-tlm' option).
+ o pkg/exf:
+   - add saltflx :: Net upward salt flux in psu.kg/m^2/s
+ o pkg/diagnostics:
+   - add run-time variable diagMdsDir to specify a subdirectory for
+     diagnostic output when mds is being used and mdsioLocalDir is not.
+ o pkg/mnc:
+   - mnc_utils.F: edit stop message
+ o pkg/autodiff:
+   - autodiff_ini_model_io.F: PRINT_MESSAGE, clean-up comments, add _*_MASTER,
+     add HAVE_SYSTEM bracket around system call to mkdir
+ o pkg/profiles:
+   - profiles_findunit.F, profiles_init_fixed.F, profiles_interp.F,
+     profiles_readparms.F: call ALL_PROC_DIE before 'stop'
+   - profiles_ini_io.F: use PRINT_MESSAGE, clean-up comments, add _*_MASTER,
+     add HAVE_SYSTEM bracket around system call to mkdir
+ o pkg/smooth:
+   - smooth_filtervar2d.F, smooth_filtervar3d.F: call ALL_PROC_DIE before 'stop'
+   - smooth_init2d.F, smooth_init3d.F: move print statements to readparms
+   - smooth_readparms.F: add cleaner print statements from smooth_init?d.F
+ o pkg/exf:
+   - check: count errors and stop cleanly at the end (call to ALL_PROC_DIE);
+     issue error message when climsst_interpMethod.GT.0 and climsst_lon_inc > 500
+     generalize tests on interpMethod, nlat, and lon_inc to all exf variables.
+   - summary: skip detailed field report if not used (empty file-name).
+ o tools/xmakedepend:
+   - In case line editor "ed" is missing, switch to "sed" command to clean-up
+     Makefile from previous dependencies (anything after "# DO NOT DELETE" line).
+ o pkg/exf:
+   - change definition of "hflux" input file to always include Short-Wave;
+     this is now consistent with hflux computation (if using bulk-formulae)
+     and hflux diagnostic & documentation (in EXF_FIELDS.h).
+ checkpoint66b (2016/12/01)
+ o model & momentum pkgs:
+   - implement fully implicit bottom friction combined with implicit surf.
+     pressure, for now, only in hydrostic formulation:
+     + to use: compile with #define ALLOW_SOLVE4_PS_AND_DRAG in CPP_OPTIONS.h
+       and run with selectImplicitDrag=2 ;
+     + currently missing diagnostics of bottom drag and vert. viscosity tendency;
+   - partial implicit time-stepping (bot. friction + vert. visc first, then
+     surf. press) corresponding to selectImplicitDrag=1 should be applicable
+     to NH formulation but not available until we solve for surf. pressure
+     increment (instead of full etaN).
+   - change exp. global_ocean.cs32x15.thsice to test implicit bottom drag
+     with implicit vertical viscosity.
+ o pkg/seaice: add linear remapping scheme (Lipscomb 2001) to ITD model
+   - this is a first version that includes many regularisations that may
+     not all be necessary, to be sorted out,
+   - turned on by runtime parameter SEAICEuseLinRemapITD (true by default)
+   - change one verification experiment in seaice_itd to use and test new code
+   - seaice_growth: catch a case where the argument of log can be zero
+     or smaller (important for code stability)
+ o model/src:
+   - modify SOLVE_DIAGONAL_LOWMEMORY version of solve_tridiagonal.F
+     & solve_pentadiagonal.F to enable to re-used inverse matrix for solving
+     similar A.X'=Y' system (with same matrix A) in subsequent calls;
+     switch based on errCode (In/Out) argument value; in calling routines,
+     initialise errCode before first call.
+ checkpoint66a (2016/10/18)
+ o pkg/bling:
+   - BLING package now loads in atmospheric pCO2 file using exf package routines
+     Enable with #define USE_EXFCO2 in BLING_OPTIONS.h
+ o model/src & pkg/ptracers:
+   - with INCLUDE_IMPLVERTADV_CODE defined, also call MOM_U,V_IMPLICIT_R &
+     GAD_IMPLICIT_R (instead of IMPLDIFF) when just implicitViscosity and
+     implicitDiffusion (respectively) are used (even without momImplVertAdv
+     or temp,salt,PTRACERS_ImplVertAdv).
+ o model/src & generic_advdiff:
+   - add parenthesis in main diagonal calculation of implicit vertical
+     diffusion matrix (impldiff.F & gad_implicit_r.F).
+     This affects results at machine truncation level; update output of many
+     verification experiments (31 fwd ; 10 adm ; 8 tlm ; 3 oad).
+ o pkg/mom_commom & generic_advdiff:
+   - add deep atmosphere and anelastic scaling factor in implicit vertical
+     advection routines (mom_u,v_implicit_r.F & gad*_impl*_r.F).
+ o model/src:
+   - remove few unnecessary temp array copies in solve_tridiagonal.F
+     & solve_pentadiagonal.F
+ checkpoint65z (2016/09/28)
+ o pkg/seaice: fix multithreading for seaice_fgmres.F
+   - remove unecessary variables from common blocks
+   - use extra dimension MAX_NO_THREADS for all variables of the Krylov space
+     basis, that are stored in commom blocks (including integer variable i1)
+   - clean up code a little by removing commented lines that refer to
+     original code
+   - turn on multi-threaded test for experiment offline_exf_seaice.dyn_jfnk.
+ o MITgcm manual:
+   - add uptodate pkg/ecco documentation to the manual (section 8.1; ecco.tex),
+     preliminary documentation for generic controls (8.3; ctrl.tex),
+     a placeholder for smooth (8.4; smooth.tex), and comment out the deprecated
+     ecco_costfunction.tex
+ o pkg/ecco:
+   - update and cleanup list of CCP options
+   - re-assign gencost_mask to specify masks rather than gencost_errfile; 'c'
+     is now always passed to cost_generic; gencost_mask is now MAX_LEN_FNAM
+   - add checks that retired run-time options are not used, and in relation
+     to gencost_mask and gencost_errfile
+   - finish deprecating gencost_scalefile, gencost_smooth2Ddiffnbt, and
+     gencost_nrecperiod
+   - fix m_eta computation for virtual salt flux case
+   - add m_horflux_vol case (selected via gencost_barfile) that computes
+     transports via cost_gencost_boxmean (gencost_flag=-3)
+   - use gencost_flag more systematically (i.e., avoid using gencost_name)
+     for code switches (aside from physical variable selection)
+ o pkg/seaice: make seaice_fgmres.F fit for multithreading; this first
+   attempt appears to be a bit of a hack and my need some repair down the road
+ o pkg/exf:
+   - interpolation near South Pole: fix criteria on input field latitude.
+ o pkg/icefront & pkg/exf:
+   - move setting of icefront Sub-Glacial RunOff forcing (currently unused)
+     from pkg/exf (read from data.exf) to pkg/icefront (read from data.icefront)
+ o pkg/exf:
+   - replace CPP option ALLOW_EXF_OUTPUT_INTERP with run-time parameter
+     "exf_output_interp" (in namelist: EXF_NML_04); change output file name
+     (add suffix "_out" instead of a prefix); keep same record number as in
+     input file but always write record 1 first (to avoid a STOP in I/O S/R).
+     Change output file content by writing interpolated field before applying
+     land-sea mask (helpful for debug).
+   - 2 compon. vector interpolation with rotation: apply scaling factor on
+     each compon. (Eastward and Northward) just before rotation.
+ o pkg/bling:
+   - Cleaned package. Removed not needed code and comments.
+   - adjoint example now works
+     (MITgcm_contrib/verification_other/global_oce_biogeo_bling/code_ad)
+ o pkg/ptracers:
+   - add Bruno Deremble's code to complete the linear surface correction
+     for tracer conservation;
+   - enabled for individual ptracers by PTRACERS_linFSConserve(iTr)=.TRUE.
+ checkpoint65y (2016/07/29)
+ o pkg/debug (stats):
+   - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
+     proc/thread mapping);
+   - fix Min & Max for case where 1 thread has only empty tiles;
+   - use RL variable to count number of wet grid points (with big domain,
+     can be too large to fit into integer*4).
+ o pkg/monitor:
+   - use RL variable to count number of wet grid points (but used only for del2)
+   - add new routine to compute Advective CFL within tracer time-stepping with
+     writing delayed until next monitor output.
+ o pkg/obcs:
+   - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
+ o pkg/cal:
+   - calandar-dump: treat case myTime < timePhase in the same way as in
+     eesupp/src/diff_phase_multiple.F (when not using calandar-dump).
+ o pkg/dic & seaice:
+   - fix compilation of ocean component for coupled atm+ocn model with
+     seaice dynamics & dic.
+ checkpoint65x (2016/06/11)
+ o add a license text file in main MITgcm tree.
+ o added pkg/bling:
+   - intermediate complexity biogeochemical model
+   - see bling_description.txt for details
+   - verification experiment is global_oce_biogeo_bling (for now, in
+     Contrib/verification_other/); tested daily on baudelaire with gfortran.
+   - add entry point in pkg/gchem for new pkg "bling".
+ o pkg/seaice: fix tensile stength computation
+   - replace global field tensileStrength by tensileStrFac
+   - tensileStrFac can be computed once in S/R seaice_init_varia
+   - fortunately that does not affect any verification results
+ checkpoint65w (2016/05/12)
+ o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
+      with ECCO_CTRL_DEPRECATED defined
+ o verification/global_ocean.cs32x15:
+   - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
+     with "selectNHfreeSurf=1".
+ o model/src (non-hydrostatic free-surface):
+   - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
+     was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
+   - Calculate surface vertical velocity after 2-D solver adjustment (accounts
+     for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
+     and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
+     This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
+   - Update output (changes at machine truncation level) of verification exp:
+     exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
+     short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
+ o pkg/seaice: ITD code
+   - fix picking up from a single category model by initialising
+     heff/area/hsnowITD = 0. in seaice_itd_pickup.F
+   - split a long warning message in seaice_check_pickup.F into two lines,
+     because NEC SX-ACE cannot deal with the long line.
+ o model/src:
+   - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
+ o pkg/seaice:
+   - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
+ o pkg/seaice:
+   - add basal stress as parameterisation for grounding ice
+     following Lemieux et al. (2015)
+   - turn on by setting new parameter SEAICEbasalDragK2 to a value
+     larger than 0. Lemieux et al. (2015) recommend 15.
+   - The adjoint complains with extra recomputations so there is also a
+     new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
+     order to postpone the problem
+   - compile the new code in lab_sea
+ o verification/halfpipe_streamice:
+   - update both TAF and OpenAD adm output (machine truncation differences)
+ checkpoint65v (2016/04/08)
+ o verification/advect_xz:
+   - increase overlap size from 3 to 4 and add new secondary test for PQM
+     advection scheme (with mono & wino limiter).
+   - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
+ o model/src:
+   - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
+     added phi0Ref) to set vertical axis origin and phiRef origin;
+     keep Ro_SeaLevel for backward compatibility (with a warning).
+    According to coordinate and fluid type:
+     OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
+     ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
+     OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
+     ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
+   - remove Ro_SeaLevel from ATM experiment parameter files;
+   - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
+     complement; update output.txt (changes at machine truncation level).
+ o pkg/seaice/seaice_evp.F
+   - simplify computation of deltaZ and zetaZ to simple averaging following
+     Bouillon et al. (2013). This removes a lot of code, but also changes
+     verification experiment lab_sea.hb87 -> updated
+ checkpoint65u (2016/03/14)
+ o pkg/generic_advdiff:
+   - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
+     with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
+     Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
+     testing and not for actual use.
+ o model/src:
+   - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
+     origin r = rF(1);
+   - add options (parameter selectP_inEOS_Zc) to select which pressure to use
+     in EOS for height coordinate: enable to include NH Pressure or to use
+     more accurate pressure vertical profile; options not linked to EOS type
+     (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
+   - start to implement variable gravity (along vertical): for now, only with
+     z-coords (not even z*).
+   - add Ideal Gas equation of state for height coordinate.
+   - update OpenAD output (affected at machine truncation level) of exp:
+     global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
+ o pkg/exf:
+   - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
+     of exf interpolation (before any rescaling, rotation or interpolation
+     to velocity point) for each field that gets loaded from file. This option
+     identically mimics the input file organization (e.g. record numbers in year
+     by year input files) besides the change in horizontal grid.
+   - add rotateStressOnAgrid run-time switch so that wind stress fields
+     can be provided on the A-grid in zonal/meridional direction and
+     rotated on the fly. This only applies to the case when the exf
+     interpolation is off and rotateStressOnAgrid is false by default.
+ o model/src:
+   - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
+     it's also used with pkg/atm_phys) and add few more parameters (but still
+     inactive, src code yet to come)
+ checkpoint65t (2016/02/10)
+ o pkg/atm_phys:
+   - from Ruth Geen: add optical depth dependence on CO2 concentration.
+ o model/src:
+   - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
+     for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
+     Update output of exp. deep_anelastic (changes at truncation level).
+ o tools:
+   - add a hack in "remove_comments_sed" (used only with TAF) for recent
+     version of OpenMPI (shipped with FC.23): comment out the new header
+     file "mpif-sizeof.h" which causes problems to TAF.
+ o pkg/seaice:
+   - change the termination criterion so that maxits (SEAICElinearIterMax)
+     has an effect
+   - unify iteration parameters for implicit solvers (JFNK and Picard)
+     SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
+     SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
+     SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
+     SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
+     SEAICEnonLinTol     replaces JFNKgamma_nonlin
+   - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
+   - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
+     use with SEAICEuseKrylov
+ o pkg/seaice/seaice_lsr.F
+     fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
+     relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
+     an effect.
+ o pkg/seaice: add two new parameters
+   - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
+     parameter is not in any namelist)
+   - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
+     a preconditioner for the non-linear Newton iteration of the JFNK
+     solver
+ o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
+   affects some experiments at truncation level:
+   - global_ocean.cs32x15.icedyn (11 digits),
+   - global_ocean.cs32x15.seaice (11 digits),
+   - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
+   - also update global_ocean.cs32x15 adjoint and tangent-linear results
+ o pkg/salt_plume & pkg/thsice:
+   - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
+     connect salt_plume flux to ATM-OCN coupling pkgs interface:
+    a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
+      export to coupler interface) even without compiling pkg/salt_plume ;
+    b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
+      (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
+ o pkg/dic:
+   - use the updated seaice fraction (from seaice pkgs) for DIC forcing
+     instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
+     called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
+   - move also update with values from ATM-OCN Coupler in the same new S/R
+     (previously done in ocn_apply_import.F).
+ o tools/adjoint_options:
+   - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
+     has been changed on Jan 14, 2016.
+ o pkg/ggl90:
+   - add alternative discretisation of vertical shear (off by default), to
+     compute the mean (@ grid-cell center) of vertical shear compon instead of
+     vertical shear of mean flow (@ grid-cell center).
+   - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
+     results on adjacent faces of cubed-sphere grids; this fix the restart.
+ o pkg/atm_compon_interf:
+   - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
+     pass last value, stored directly before export to CPL ;
+     Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
+   - remove atmSLPr from pickup files (no longer needed for restart)
+ checkpoint65s (2016/01/13)
+ o eesupp & genmake2:
+    - first check for Function ETIME and, if it fails, then check for subroutine
+      ETIME and consistent output; use the appropriate version in timers.F
+ o model/src:
+   - to check restart test, add option to apply EXCH to U,V earlier, just before
+     integr_continuity; turned off by default.
+ o pkg/dic:
+   - remove CPP option USE_ATMOSCO2 (not needed)
+ o tools/tst_2+2:
+   - try to ignore difference between +0 and -0 in binary file, causing test
+     to fail for no good reason.
+ o eesupp & genmake2:
+   - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
+     but also check (in genmake2) that test runs and returns meaningful results.
+ o coupler pkgs:
+   Finish implementation of optionally-exchanged variable switches (started on
+    Nov 12) with addition of few more exchanged fields, including 2-way exchange
+    of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
+    advection in OCN component; this requires sequential coupling.
+   coupler (pkg/atm_ocn_coupler):
+   - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
+     routines (useful for debug).
+   - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
+      flux, DIC fields) if corresponding switch is ON.
+   - add option to export RunOff to OCN (to use for DIC river input)
+   - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
+   components (pkg/atm_ & ocn_compon_interf):
+   - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
+     optionally exchanged fields; add a check & stop in cpl_readparms.F.
+     ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
+     OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
+   - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
+     + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
+   - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
+   - hold in common block coupler optionally-exchanged variable switch
+     and set default "useImportXXX" accordingly; + check & stop if inconsistent.
+   - add diagnostics for all imported fields from coupler (in both OCN & ATM);
+     this is intended to replace the OCN cplFldtave.* output files (not updated
+     to contain new additional exchanged fields).
+ o pkg/dic:
+   - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
+ o pkg/thsice:
+   - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
+     and writing of thsice pickup files.
+ o pkg/atm_compon_interf:
+   - move all field individual export-call out of cpl_export_import_data.F
+     into new S/R ATM_EXPORT_FIELDS
+ o pkg/atm_compon_interf:
+   - store state variables (for now, only thSIce fields) just before beeing
+     exported (in cpl_export_import_data.F, like on ocean side) instead of from
+     atm_store_my_data.F like all exported fluxes.
+   - new version of pickup_cpl: write field names into meta file and read meta
+     file to find field postion in pickup. Also only write/read fields meeded for
+     restart (same logic as main pickup file ; also using pickupStrictlyMatch)
+ o pkg/dic:
+   - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
+ o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
+     pressure replacement method (=1., default) or original Hibler (1979) (=0.)
+     value can be from domain [0,1] to average between the two methods
+ o pkg/atm_phys:
+   - allow to provide 2-d map of albedo and mixed-layer depth from files (but
+     hold fixed in time).
+ checkpoint65r (2015/12/21)
+ o pkg/seaice:
+     fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
+     solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
+ o pkg/seaice:
+   - fix a bug in computing areaS in (J-J -> J-1) that affects runs
+     when SEAICEscaleSurfStress=.TRUE.,
+   - apply areaW and areaS in S/R seaice_calc_lhs
+ o pkg/atm_phys:
+   - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
+     (shortwave & longwave, net & downward) and diagnostics of temp. tendency
+     for individual contribution (convection, LSC cond, radiation)
+   - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
+     information); activated with: solar_exponent=0. and wv_exponent=-1.
+ o pkg/ggl90:
+   - within IDEMIX add upper limit for horizontal group velocity to
+     avoid instability problems in the explicit horizontal diffusion term for
+     long time steps or high resolution
+ o pkg/diagnostics:
+   - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
+     (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
+ o testreport:
+   - remove "-v" (verbose option) in default mpirun command.
+ o pkg/seaice/seaice_growth:
+   - catch potential division by zero in ITD code, does not change
+     verification results
+ o pkg/ecco:
+   - retire old codes to the Attic. The calls to retired functions are
+     left in a commented form in case they ever need to be re-activated.
+   - ecco_check.F: issue warning if any old CPP option is
+     defined that corresponds to retired codes -- then stop.
+ o pkg/atm_compon_interf:
+   - change seaice fraction (use for OCN dic surf.flux) stored and sent to
+     coupler: use last time-step value instead of average over cplSendFrq_iter
+     time-step, similar to what is done for seaIceMass.
+     This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
+ o eesupp & genmake2:
+   - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
+     <= remove until a fix is found for some ifort version on ia32 machine.
+ o pkg/seaice/seaice_evp:
+   - refine residual computation
+ checkpoint65q (2015/11/18)
+ o pkg/seaice/seaice_evp:
+   - fix residual computations so that they no longer affect the actual
+     simulation code
+   - fix seaice_readparams to be able to actually set new parameters
+     SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
+ o model/src:
+   - fix wrong truncation (single prec) from "FLOAT" function in expressions
+     like: deltaT*FLOAT(myIter) when myIter is large:
+      a) replaced by DFLOAT (if not seen by TAF);
+      b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
+ o pkg/aim_v23:
+   - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
+     when pickupSuff is set ; do write rolling pickups + at the end of the run.
+ o pkg/atm_ocn_coupler + ocn_compon_interf:
+   - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
+     coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
+     add corresponding call in DO_OCEANIC_PHYS.
+ o coupler pkgs:
+   Start a new way to set-up optionally-exchanged variables (previously, only
+    there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
+    data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
+    send switch to ATM & OCN compon before reading their own "data.cpl" (so that
+    compononent param default can be set accordingly).
+   Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
+    but rather applies to a group a fields (going both ways like for DIC)
+    and corresponds to an option of coupling config.
+   coupler (pkg/atm_ocn_coupler):
+   - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
+     and read namelist directly (without eessup S/R calls) instead of
+     in the very un-flexible old way, 1 param per line, in fixed order;
+   - add error-counter to track errors (e.g., missing "data.cpl") and to stop
+     cleanly in CPL_CHECK_CPLCONFIG
+   - add new coupling-exchange selectors (some not yet active) including
+     cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
+                                          and ocnCpl_exchange_DIC=T in OCNIDS.h);
+   - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
+     component ; called directly from coupler.F, after comp. registrations;
+   - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
+      atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
+       -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
+   components (pkg/atm_ & ocn_compon_interf):
+   - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
+     CPP header file in all pkg source files.
+   - move checking of comp. configs out of cpl_exch_configs.F into new S/R
+     ATM/OCN_CHECK_CPLCONFIG;
+   - add error-counter to track errors (e.g., in "data.cpl") and to stop
+     cleanly in ATM/OCN_CHECK_CPLCONFIG;
+   - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
+     from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
+     before PACKAGES_READPARMS;
+   verification/cpl_aim+ocn/:
+   - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
+     "data.cpl" for coupler (in input_cpl).
+ o eesupp/inc:
+   - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
+     #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
+     to always cumulate tile local-sum in the same order (still uses
+     MPI_Allreduce like standard code).
+   - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
+     that are now identical to standard version (in eesupp/inc).
+ o pkg/shelfice:
+   - add SHELFICETransCoeffTFile for initializing spatially varying
+     heat and salt transfer coefficients
+ o pkg/atm_compon_interf & ocn_compon_interf:
+   - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
+     S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
+   - move bi,bj loops inside S/R OCN_STORE_MY_DATA
+ o pkg/atm_ocn_coupler:
+   - initialise to zero ATMVARS.h & OCNVARS.h arrays.
+ o pkg/rbcs:
+   - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
+     to compile with maskLEN=1 when all tracers use the same RBCS-mask.
+   - add a short report (to STDOUT) about RBCS-mask settings.
+ checkpoint65p (2015/10/23)
+ o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
+     there is no adjoint test for EVP, we don't know what it does to the adjoint
+     solution, but at least there are no more recomputation warnings left
+ o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
+     a chance of giving the same results as a fully converged VP (JFNK) solver
+ o tools/adjoint_options/adjoint_diva:
+   - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
+ o pkg/streamice:
+   - spotted bug in streamice_driving_stress using dyG where should have been dxG
+ o pkg/exf:
+   - remove STOP statement that prevented to use wind or (wind-)stress
+     interpolation for constant-in-time forcing fields (wind/stress period = 0).
+ o pkg/seaice:
+   - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
+additionals 2D fields and 6 new store directives
+   - change logic in seaice_readparms.F: EVP code can now be turned on in
+     various ways, setting SEAICE_deltaTev is no longer required,
+     alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
+     or SEAICEaEVPcoeff
+ o pkg/shelfice/shelfice_thermodynamics.F
+   - redefining uLoc/vLoc to u/v, instead of 2u/v
+ o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
+   - this is an intermediate state of a truely converging EVP that has
+     the potential of outperforming implicit VP methods, I do not recommend
+     using it yet.
+   - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
+     and all parameters are hardwired
+   - for convergence it still requires very smooth regularisations, that means,
+     if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
+     different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
+     specific averaging appears to be required, still subject to tuning
+   - still needs cleaning and I need to turn parameter into runtime parameters
+   - add code to compute and print residuals of iteration, compile with
+     defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
+ o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
+   that entered with r1.54 on Sep04, 2015, -> update results
+ checkpoint65o (2015/09/14)
+ o pkg/mom_vecinv & mom_common:
+   - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
+     called from there.
+   - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
+     allows to use Vector-Invariant form in deep atmos and anelastic formulation
+ o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
+   and Koenig-Beatty+Holland (2012)
+   - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
+   - global 2D field tensileStrength, computed in seaice_calc_ice_strength
+   - requires an extra input argument for S/R seaice_calc_viscosities
+   - tensileStrength's depth dependence is different from Itkin et al. (2015)
+     (to be changed and played with, for now exponential)
+ o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
+   - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
+     by AREA according to Connelly et al. (2004), JPO.
+   - For EVP and the LSR solver, the implicit part of the drag term is
+     the only non-zero term in the denominator when there is no ice (which
+     prevented running the model with zero ice-ocean drag). If
+     SEAICEscaleSurfStress = .TRUE., this results in a division by zero
+     (or zero main diagonals BU/BV) which need to be caught. A practical
+     consequence is that for open water, the momentum equation reduce
+     to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
+     they happen to be zero, often leading to a non-zero solution over
+     open water.
+ o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
+     efficient EVP method.
+   - introduce area-weighted averages for e12 (analogously to
+     seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
+     remain, but also changing the order of terms in the previous average
+     changed the results as much) -> update experiment
+   - add SEAICE_DELTA_SMOOTHREG code
+   - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
+     TEM-code
+   - adjust loop bounds so that only required fields are computed
+   - add new averaging code for zetaZ/deltaZ (again similar to
+     seaice_calc_viscosities.F), inactive by default for now (will change
+     results again), but will replace old code eventually
+ o eesupp/src:
+   - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
+     to always cumulate tile local-sum in the same order
+     (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
+     Still uses MPI_Allreduce (like standard code) but on array of tiles
+     and should be faster than GLOBAL_SUM_SEND_RECV code.
+   - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
+     (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
+   - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
+      aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
+      fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
+      natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
+      tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
+ checkpoint65n (2015/07/29)
+ o pkg/thsice:
+   - add a warning when used with pkg/aim but without updating SST
+     (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
+ o pkg/offline:
+   - change where Offline-Fields are loaded, from load_fields_driver.F to
+     directly within FORWARD_STEP, just after updating iter number and time;
+   - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
+     S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
+    These changes allow:
+     a) to recover exactly on-line results using deltaToffline=deltaTClock,
+     tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
+     both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
+     time-step, both with GM & KPP files and with recomputing these fields;
+     b) no needs to switch on staggerTimeStep anymore;
+     c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
+   - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
+ o pkg/offline:
+   - change (rarely used) offset-iteration parameter to an offset time (in s):
+     can easily recover previous offset-iter effect by setting offset-time
+     (offlineTimeOffset) to offset-iter x deltaToffline;
+   - do not turn-off Temp & Salinity surface relaxation when using KPP (used
+     in KPP as part of surface buoyancy forcing) in offline run.
+   - fix ptracers KPP non-local term in the case where KPP is re-computed.
+ o OpenAD
+   - Adding preliminary ggl90 test to OpenAD verification.
+     Config. with ggl90 currently diverges after 64 time steps
+     so will need more work to become more stable
+   - Adding preliminary kpp test to OpenAD verification.
+     required small tweakes in kpp_routines.F
+   - Merge and update from Krishna Narayanan's contrib area:
+     * Add one variable for preliminary OpenAD DIVA
+     * Add replacement time-stepping for OpenAD DIVA
+     * genmake2 flag -diva (but only for OpenAD; preliminary)
+     * required modifs for OAD_support
+     successful preliminary test for tutorial_global_oce_biogeo/
+ o pkg/seaice:
+   - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
+   - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
+     delta with a smooth function in s/r seaice_calc_viscosity
+     (no effect on EVP)
+   - rename local suffix "sqr" into "sq" for more consistent variable names
+ o pkg/seaice:
+     add new parameter SEAICE_deltaMin that is used ***only***
+     for regularizing Delta (and nothing else, like the parameter
+     which is also used for all sorts of things SEAICE_EPS).
+     Defaults to SEAICE_EPS for backward compatibility only.
+ o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
+     the wrong key by inialising it before use -> fixes a recomputation
+     problem but does not fix the gradient
+ o pkg/layers:
+   - move resetting of flux arrays to outside the iLa loop
+     (this caused layers_diapycnal to not work with more than one layer coord.)
+   - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
+ o pkg/layers:
+   - remove from common block 3D layers fields (used to diagnose transport
+     in tracer coords) and declare them as local arrays in layers_calc.F
+ o pkg/seaice:
+   - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
+     in lab_sea forward experiment (changes results -> updated)
+   - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
+ o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
+    computations; for SEAICE_VECTORIZE_LSR
+   - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
+     sweep to the outside,
+   - remove store directives and add "CADJ loop sequential" directives
+     in analogy to model/src/solve_tridiagonal.F
+   - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
+     boundaries to yield more readable code. This has also the charming side
+     effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
+     SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
+     seaice_lsr_tridiagu/v now requires either of these flags, vectorization
+     still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
+     an additional option)
+    The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
+    but the adjoint gradients (which are affected by this change) still explode.
+ o coupler (atm & ocn _compon_interf):
+   - avoid using Exch2 IO mapping if not suitable.
+ checkpoint65m (2015/06/15)
+ o pkg/layers:
+   - clean-up old parameters setting (from Sep 2012):
+     + remove old parameters setting from common block (declared locally);
+     + stop if any old parameter is mixed with new parameters;
+     + check for valid or consistent parameter setting (e.g., layers_name)
+   - check that layers_bounds for Pot.Density are in the right range;
+     this is supposed to catch un-updated setting after recently shifting
+     potential density field "prho" by -1000 (now in "sigma" scale).
+ o pkg/layers:
+   - Added missing call to layers_fill for keeping track of tottend in
+     pkg/diagnostics/diagnostics_fill_state.F
+ o pkg/layers:
+   - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
+     of diapycnal fluxes
+ o pkg/layers:
+   - reverted changes to interpolation to previous treatment; there
+     was never actually a problem
+ o pkg/layers:
+   - fix interpolation of layers tracers in the presence of partial cells
+   - add lots of new functionality to compute water mass transformation
+     (enabled by CPP flag LAYERS_THERMODYNAMICS)
+   - add new calls from main code (diags_oceanic_surf_flux.F,
+     thermodynamics.F, impldiff.F) and gad to save the necessary fields
+     for layers_thermodynamics calculations
+ o pkg/ptracers:
+   - add capability of stepping a passive tracer forward without advection
+     by setting PTRACERS_advScheme to 0.
+ o pkg/diagnostics:
+   - add few (threads) _BARRIER around any update of "diag_pkgStatus".
+ o pkg/layers:
+   - shift potential density field "prho" by -1000 for density layer averaging so
+     that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
+     Note that density bin boundaries (layers_bounds in data.layers) have
+     to be set accordingly (i.e., shifted, in sigma scale).
+ o pkg/layers:
+   - fix snap-shot output of layer thickness @ V.pt and output of pot.density
+   - fix calculation of layer non-weighted velocity and layer probability
+   - add diagnostics for pot.density used for layer averaging
+ o pkg/seaice:
+   - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
+     positiveness, modify a few comments and improve variable names,
+   - the changed computation of deltaC affects most seaice-related
+     experiments at the truncation level.
+     seaice_itd.thermo is affected by far the most, with
+     only 7 digits of agreement remaining; update experiments.
+ checkpoint65l (2015/05/04)
+ o pkg/shelfice:
+   - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
+     factor drKp1 to zero where it is negative (ie. do not use
+     SHELFICEBoundaryLayer if hFacC>1)
+   - the same for factor drLoc in shelfice_forcing.F
+ o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
+     with modules in ptracers, when using testreport option "-small_f"
+ o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
+   - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
+ o verification/testreport
+   - add new option -small_f
+     with this option testreport first makes the target small_f (*.f files)
+     before running make (all). This is useful for explicit inlining when
+     all sources need to be full available.
+ o pkg/exf/exf_interp.F:
+     remove previous changes related to reverse (decreasing) input grids latitude
+ checkpoint65k (2015/04/01)
+ o pkg/ecco:
+     fix missing cosphi initialization; use eccoiter in place of optimcycle;
+     if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
+     instead of active read/write
+ o pkg/ctrl:
+     if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
+     instead of active read/write.
+ o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
+     return if .NOT.useAUTODIFF
+ o pkg/seaice: add CPP brackets (cost function related).
+ o model/src:
+     add useAUTODIFF run time switch.
+ o pkg/exf/exf_interp.F:
+     add code to allow input grids with latitude starting in the north (i.e. when
+     j=1 corresponds to northern edge of field); modify global_with_exf to test
+     this feature.
+ o verification/testreport:
+   - replace "grep -A3" with POSIX conformal sed command, because there are
+     implementations of grep that cannot do contextual searches
+   - replace "cat -n" by "nl" (two occurrences), because not all implementations
+     of "cat" have the option "-n"
+ o model/src:
+     add new file gsw_teos10.F that contains 3 functions, more or less a copy
+     of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
+     convert from conservative to potential temperature. For now they are not
+     called anywhere.
+ o pkg/ggl90: make "useIDEMIX" useful
+   - re-organize code in s/r ggl90_calc a little to move computations that
+     are different for idemix into separate loops (changes verification
+     experiment idemix at truncation level, 12 digits remain -> updated)
+   - requires 2 new 2D fields KappaM, verticalShear
+   - make hFacI and recip_hFacI local 3D variables that are passed to
+     s/r ggl90_idemix
+   - fix and improve some comments
+ checkpoint65j (2015/02/25)
+ o pkg/openad
+   - synchronize seawater.F with version in model/src: replace routine
+     body of sw_temp by calling sw_ptmp and fix/add a few comments.
+ o pkg/mnc:
+   - change default value of pickup_read/write_mnc params to FALSE
+     (since few features are missing in reading MNC pickup files).
+ o model/src:
+   - change default (background) vertical diffusivity for salt to be the
+     temperature (background) vertical diffusivity.
+   - change background vertical diffusivity in vertical mixing pkgs ggl90,
+     kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
+     This makes ptracers default diffusivity (that uses salt diffKr) more
+     consistent with vertical mixing schemes.
+ o verification/testreport:
+   - fix typo in "-pcls" option ;
+   - put temp files in /tmp (instead of in local dir)
+   - add option "-ncad" to use genmake2 new option "-nocat4ad"
+   - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
+ o pkg/ggl90 (idemix code):
+   - apply few fixes ; add some missing "_d 0" ; update output of exp.
+     global_ocean.90x40x15.idemix
+ o OpenAD
+   - enable active file I/O and begin removal of work-around code
+     for OpenAD for handling control variables (memory vs. active files)
+   - new CPP options file OPENAD_OPTIONS.h
+   - revert to genarr2d gradient check for hs94.1x64x5
+   - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
+   - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
+ o tools/genmake2:
+   - add option for an alternative Makefile (from Martin) where multiple
+     source files are sent to TAF (instead of all in one file).
+ o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
+   - code provided by Carsten Eden as an extension of ggl90
+   - so far the code is turned on within ggl90 by setting a CPP-flag at
+     compile time; a runtime flag implementation is not yet complete
+   - tested in new verification experiment global_ocean.90x40x15.idemix
+ o verification:
+   - reduce length of the AD test run by half for experiments
+     global_ocean.cs32x15 (std + thsice) and isomip
+   - enable active file I/O for OpenAD, adjust verifications accordingly
+   - halfpipe_streamice: change gradient check from genarr2d to gentim2d
+ o verification/testreport:
+   - fix two non-POSIX sed statements so that there are no error messages
+     on Mac OS X
+   - replace hostname -s with hostname | sed 's/\..*$//'
+ o model/src/seawater.F:
+   - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
+     (following the matlab code), which would have avoided the bug caught
+     by Matt (see below) in the first place
+ o pkg/shelfice:
+   - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
+     and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
+   - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
+     ice-shelf case (i.e., within surface level).
+   - add config summary in shelfice_check.F
+   - remove global variable recip_SHELFICElatentHeat and replace by a local
+     variable recip_latentHeat
+   - introduce diagnostics for friction velocity uStar (in case of
+     SHELFICEuseGammaFrict)
+   - change verification experiment isomip.htd:
+     + start from pickup (as input_ad at nIter0=8640)
+     + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
+     + test SHELFICEuseGammaFrict = .TRUE.
+     + test SHELFICEadvDiffHeatFlux = .TRUE.
+ o model/src:
+   - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
+     in-situ Temp) and in routine SW_TEMP (in pkg/openad);
+     update output of experiments global_with_exf.yearly and isomip (all 6).
+ o pkg/shelfice:
+   - change setting of kTopC to also be zero where there is no ice-shelf.
+   - zero out surface forcing arrays (for now, for T & S + EmPmR) where
+     ice-shelf is.
+   - first attempt to get RealFreshWaterFlux effects: for now, only without
+     SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
+ o pkg/seaice: add the option to prescribe a fixed thickness PDF
+   for thermodynamic calculations
+   - because of divisions of the type 7/7 not exactly equal to 1, this change
+     affects results of some verification experiments by up to 4 digits:
+     global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
+     seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
+     adjoint: lab_sea, lab_sea.noseaicedyn
+     -> updated
+ checkpoint65i (2015/01/23)
+ o model/src:
+   - change units of frictionHeating field from W to W/m^2
+   - fix bug in frictional heating from stratospheric drag in
+     S/R ATM_PHYS_TENDENCY_APPLY_V
+   - with synchronous time-stepping: move resetting to zero of frictionHeating
+     field from load_fields_driver.F to thermodynamics.F ;
+   - add diagnostics for frictional heating.
+ o model/src & gmredi K3D:
+   - add frictionHeating field to pickup-files (for synchronous time-stepping)
+   - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
+   - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
+     and name in pickup file).
+   - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
+ o model/src:
+   - move (from ini_forcing.F) initialisation of all arrays in header file
+     FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
+     (since Nov 2012) with option selectAddFluid=1.
+ o pkg/shelfice:
+   - change units (+ document) of newly added field "shelfIceMassDynTendency"
+   - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
+ o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
+ o pkg/seaice: two new runtime parameters:
+   - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
+     long overdue
+   - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
+     parameterization of tensil stress for fast ice (does not do anything yet)
+ o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
+     for LSR: move checking overlaps out of JFNK-if-block
+ o pkg/atm_phys:
+   - move copy of grid and dynamical fields out of atm_phys_driver.F into
+     new S/R ATM_PHYS_DYN2PHYS.
+   - fix level height for Linear Free-Surf case (to be consistent with
+     fixed-in-time pressure levels).
+ o pkg/mom_common (bottomdrag):
+   - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
+     to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
+     update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
+ o pkg/shelfice (u/v_drag):
+   - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
+   - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
+     (now similar to shelfice_u_drag.F)
+   - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
+     from mom_vecinv.F (similar to mom_fluxform calls).
+ o pkg/mom_common (bottomdrag):
+   - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
+   - add options for alternative discretisation of velocity norm in quadratic
+     bottom drag: averaging of grid-cell-center KE to U.point and V.point
+     (selectBotDragQuadr=0, original code) can produce noisy patterns; this
+     improves when averaging only the other component (e.g. vVel for U bottom
+     drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
+   - add options (bottomVisc_pCell) to account for partial-cell in bottom
+     friction (no-slip BC) thus getting the true distance from the bottom;
+     off by default since this also reduces model stability (explicit bottom
+     friction). Changes produce different machine truncation with linear-drag
+     + no-slip BC: update output of experiments exp4.stevens (10 digits) and
+     front_relax (bvp & mxl, 10 & 11 digits).
+ o model/src & mom pkgs:
+   - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
+     since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
+   - for now and until vertical mixing scheme are updated to fill up level Nr+1,
+     just copy level Nr value to level Nr+1.
+ o doc:
+   - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
+ o pkg/shelfice:
+   - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
+     SHELFICE.h: move array shelficemass to init_varia, initialise
+     from array shelficemassinit, which is set in init_fixed and
+     has option to be set from file; introduce array
+     shelficeMassDynTend array, set thru file in init_fixed
+   - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
+     shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
+     pkg/streamice
+   - shelfice_thermodynamics.F: call shelfice_step_icemass if
+     SHELFICEMassStepping = .true.
+   - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
+ checkpoint65h (2014/12/17)
+ o verification/global_ocean.90x40x15, global_ocean_ebm:
+   - update to generic controls.
+ o pkg/ctrl:
+   - ctrl_map_ini_genarr.F: test for igen>0
+   - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
+   - move gentim2d part of ctrl_map_ini_genarr.F to
+     new separate routine : ctrl_map_ini_gentim2d.F
+   - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
+     add time variable weights and cyclic controls (time mean,
+     seasonal cycle, etc) capabilities to gentim2d
+ o pkg/ecco:
+   - move reading of error, conversion to weights from
+     ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
+ o global_oce_llc90, cs32:
+   - activte sbo.
+   - CTRL_SIZE.h : add maxCtrlProc.
+   - activate the new genctrl capabilities.
+   - update following reorganization of global_oce_input_fields.tar.gz
+ o pkg/ctrl/ctrl_ad_diff.list:
+   - add missing ctrl_init_rec.f
+ o tools/OAD_support/keepOriginal:
+   - add ctrl_init_rec.F
+ o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
+   - avoid recomputations of xx_gentim2d_dummy.
+ o momentum diagnostics:
+   - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
+     mom_vecinv.F to timestep.F (to include Smag-3D contribution).
+ o pkg/seaice/seaice_lsr.F:
+   - fix computation of BU/BV, make sure they are non-zero, only necessary
+     for cubed sphere exchanges and SEAICE_OLx/y>0.
+     This makes calling s/r fill_cs_corner_rl obsolete (removed).
+ o verification/global_ocean.cs32x15/input.seaice
+   - add test for strong implicit coupling and restricted addtive Schwarz
+     methods for LSR
+   - update results/output.seaice.txt
+ o verification/tutorial_global_oce_biogeo:
+   - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
+     and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
+     update output_adm,_oadm,_tlm.txt
+ o pkg/dic:
+   - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
+   - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
+     for tracer 1 & 2 is set (to avoid double counting of dilution effect).
+ o verification/tutorial_global_oce_biogeo:
+   - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
+     dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
+     update output_adm,_oadm,_tlm.txt
+ o eesupp/src:
+   - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
+     and call it in seaice_lsr when using nonzero SEAICE_OLx/y
+ o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
+   LSR (following Hutchings et al. 2004)
+   - introduce zetaZ as a global variable (requires adjustments in
+     seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
+     in seaice_calc_viscosities.F
+   - new flag SEAICEuseStrImpCpl (default off)
+   - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
+     momentum equations
+   - JFNK-solver (preconditioner) adjusted to allow using this method
+     (where it does not have any positive effect)
+ o pkg/seaice
+   - add overlap for restrictive additive Schwartz method also to LSR, but
+     turn it off by default (because it only seems to work for non-cubed
+     sphere/llc topologies)
+ o pkg/autodiff
+   - add extra exchanges in addummy_in_steppging also for mnc output
+ o pkg/seaice:
+   - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
+     to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
+ o pkg/obcs:
+   - add option to specify domain-connected piece Id along OB though files
+     (for now, only used to diagnose PhiVel; default =1 -> global correction)
+   - modify obcs_diag_balance.F to process each connected-part separately;
+     exclude OB where Id = 0 but keep the full divergence there (-> constant
+     Psi along this portion of OB and all inflow derived from grad(Phi))
+   - add example of OB-conect files in verification/so_box_biogeo/input.
+ o pkg/diagnostics:
+   - improve treatment of Open-Boundaries in Velocity-Potential calculation:
+   a) use non zero matrix element across OB and solve for Phi 1 grid point
+      outside OB (i.e, where tracer OBCS are applied).
+   b) global imbalance of inFlow/outFlow across OB: instead of modifying
+      velocity across OB, spread it uniformly along the OB in the RHS.
+ checkpoint65g (2014/11/19)
+ o pkg/diagnostcis:
+   - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
+ o pkg/my82,pp81,kl10:
+   - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
+     field diffKr as background diffusivity to set minimum diffusivity value.
+ o pkg/seaice:
+   - add new parameter SEAICEuseEVPrev (for revisited EVP by
+     Bouillon et al 2013)
+   - add SEAICE_evpAlpha/Beta to namelist
+   - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
+     involve trivial re-ordering of divisions/multiplications that should not
+     have any effects, but ... they do change the results of lab_sea.hb87 so
+     that only 2 digits of agreement remain, in line with the general
+     instability/fragility of the evp-code. For now, I do not care and just
+     update the verification experiment
+ o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
+   - remove xx_genarr2d_numsmooth etc
+   - use xx_genarr2d_preproc etc instead
+   - carry out smooth_correl2D at initialization stage rather than during
+     time stepping.
+   - get smoothOpNb from xx_gentim2d_preproc
+ o global_oce_cs32 :
+   - add test of generic ecco capabilities.
+ o pkg/exf/exf_getsurfacefluxes.F :
+   - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
+ o pkg/ctrl,ecco :
+   - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
+     is defined.
+ o pkg/seaice: add diagnostics for Delta (deformation parameter)
+ o model/src:
+   - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
+     diffusivity (background) is specified but ignored.
+ o verification:
+   - in testreport, convert hostname to lower case for default output dir name
+ o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
+ o pkg/dic: add modifications from Hajoon:
+   - add iron sedimentation flux function of the flux of PO4 out of bottom layer
+   - light attenuation: add self-shading effect by climatological Chlorophyll
+     (read from file).
+ o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
+     compiles when SEAICE_ALLOW_DYNAMICS is undefined
+ o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
+     AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
+     ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
+     approach where CPP_OPTIONS.h includes an omnipotent
+     ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
+ o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
+     ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
  o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
-   to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
+     to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
-   (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
+     (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
  o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
    add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
    - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
    - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
    - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
  o pkg/ctrl,ecco,exf :
    - remove variables associated with NON-generic costs,
      unless ECCO_CTRL_DEPRECATED is defined.
    - remove NON-generic NON-obcs controls,
      unless ECCO_CTRL_DEPRECATED is defined.
  o pkg/ctrl : added ctrl_local_params.h
  o pkg/ecco : added ecco_local_params.h
  o verification : added ECCO_CTRL_DEPRECATED to most as and oad
-   experiments, which will progressively be removed once the
+     experiments, which will progressively be removed once the
-   experiments are revised to use only generic controls/costs.
+     experiments are revised to use only generic controls/costs.
  checkpoint65f (2014/10/13)
  o pkg/ctrl, ecco, seaice : minor changes in headers
  o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
-   cost function and control capabilities added since checkpoint65c.
+     cost function and control capabilities added since checkpoint65c.
  o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
  o pkg/ecco: increase modularity and improve logic
    - ecco_toolbox.F (new) : basic operations that are often used,
-Line 393 
 o pkg/seaice: more clean up
+Line 1743 
 o pkg/seaice: more clean up
      nearly a factor of 10 (but keep in mind there is mostly seaice code in
      this experiment):
      > size mitgcmuv_ad
      text    data        bss     dec        hex
      5100659 1216  220458952  225560827  d71c8fb
      5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
      but only a moderate increase of 36% for global_ocean.cs32x15:
      text    data        bss     dec        hex

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