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revision 1.2102 by jmc, Sun Dec 7 19:13:28 2014 UTC revision 1.2362 by jmc, Thu Nov 16 00:46:25 2017 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/rbcs:
8      - increase size of "relaxMaskFile" to read-in from namelist and save it
9        (+check) into new (renamed) "relaxMaskTrFile" array.
10    o model/src:
11      - option (interViscAr_pCell, interDiffKr_pCell) to account for true vertical
12        distance (including hFac) in vertical viscous flux and diffusive flux ;
13      - add option to increase vertical mixing (for both momentum and tracers)
14        near surface and/or bottom where partial cell is too thin ;
15      - for now, both additions above are within: #ifndef EXCLUDE_PCELL_MIX_CODE ;
16    
17    checkpoint66l (2017/10/24)
18    o pkg/kpp, ggl90 & ebm:
19      - read namelist without IOSTAT=errIO to force to stop if there is an error
20        in the parameter file namelist.
21    o pkg/cheapaml: major changes to relaxation coefficient setting:
22      - rename parameters cheapaml_taurelax & cheapaml_taurelaxocean (in days)
23        to cheap_tauRelax & cheap_tauRelaxOce (now in seconds);
24      - if using cheapMaskFile, set relaxation coeff to: cheapMask/tauRelax
25        (instead of 1/cheapMask over ocean and 1/tauRelax over land);
26      - with cheapMaskFile unset: set relaxation coeff according to land/ocean mask
27        (unchanged) but skip increase near domain edges for periodic domain (in X
28        or Y dir) when cheapamlX/Yperiodic=T ; also fix linear increase (over
29        Cheapaml_mask_width grid points) of coeff towards domain edges (previously
30        was increasing away from edges). Update output of experiment "cheapAML_box".
31    o pkg/cheapaml:
32      - move setting of (fixed in time) relaxation coefficient
33        from cheapaml_init_varia.F to cheapaml_init_fixed.F
34    o pkg/exf:
35      - add specific forcing field for tides to feed model new geopotential anomaly
36        forcing, for now within #ifdef EXF_ALLOW_TIDES.
37      - remove from common block unused params: exf_inscal_sst & exf_inscal_sss.
38    o model:
39      - add new 2-d forcing field for time-dependent geopotential anomaly (e.g.,
40        tidal forcing), in m^2/s^2 ; add run-time param to allow to turn it off.
41    o eesupp/src:
42      - shift standardMessageUnit in eeboot.F and I/O units in mdsfindunit.F
43        for coupling to GEOS AGCM: HACK_FOR_GMAO_CPL option in CPP_EEOPTIONS.h
44    
45    checkpoint66k (2017/09/20)
46    o model/src:
47      - add missing CPP brackets (ALLOW_COST, ALLOW_CTRL in load_fields_driver.F
48        and the_model_main.F)
49    o ctrl:
50      - use zeroRL in place of fc when ALLOW_COST is not compiled (in ctrl_pack.F)
51      - call MDS_READ_FIELD / MDS_WRITE_FIELD instead of deprecated
52        mdsreadfield / mdswritefield (in ctrl_get_gen.F, ctrl_map_ini_gen.F,
53        ctrl_map_ini_genarr.F, and ctrl_map_ini_gentim2d.F )
54    o eesupp:
55      - add CPP option to activate some pieces of code for coupling to GEOS AGCM;
56      - shift commonly used IO unit (in eeboot.F) for coupling to GEOS AGCM.
57    o pkg/bling:
58      - bling_production: Fix typo in calcium carbonate uptake. Also rearranging
59        and cleaning
60    o model/src:
61      - move k loop inside correction_step.F (+ update calling S/R)
62      - collect implicit pressure gradient tendencies in local 2-D array;
63        affect results (at machine truncation level) when using 3-D solver; update
64        output of exp.: exp4 (x1), global_ocean.cs32x15 (x2),hs94.cs-32x32x5.impIGW,
65                        rotating_tank, short_surf_wave,tutorial_deep_convection (x2)
66                        & tutorial_plume_on_slope.
67    
68    checkpoint66j (2017/08/15)
69    o pkg/ptracers:
70      - fix surface forcing under ice-shelf (useShelfIce=T).
71    o pkg/atm_phys:
72      - use hFac weighted average when applying A-grid atm-phys momentum tendency
73        to C-grid dynamics; this ensures wind-stress match mom tendency.
74    o eesupp/src:
75      - change default for opening scratch files to avoid STATUS='SCRATCH'
76      - close scratch files with STATUS='DELETE'
77      - changes affect eeset_parms.F and open_copy_data_file.F and many routines
78        that read namelists (because they close the scratch files)
79      - you can revert to old default by setting USE_FORTRAN_SCRATCH_FILES
80        in CPP_EEOPTIONS.h (tested in ideal_2D_oce/code & lab_sea/code_ad)
81    o pkg/atm_phys:
82      - fix unset arguments in (unused) S/R surface_flux_0d.
83    o eesupp/src:
84      - add argument "procId" to S/R EESET_PARMS to fix  scratchFile1 & 2 setting
85        (case TARGET_BGL or TARGET_CRAYXT) for early call (from eeboot_minimal.F):
86        called with myProcId in eeboot.F and with mpiMyWId in eeboot_minimal.F
87    o pkg/streamice:
88      - remove blank between _EXCH_XY_RL and "()", which my Apple Xcode
89        preprocessor /usr/bin/cpp cannot interpret; 3 instances in total in
90        streamice_driving_stress_fd.F and streamice_advect_2dtracer.F
91    o pkg/diagnostics:
92      - new option to allow to cumulate thickness-factor (hFac) weighted field
93        (if field permitted); implemented by changing sign of "jdiag" pointer
94        (> 0: cumlulate field, < 0: cumulate hFac weighted field).
95        a) restricted to 3-d (Nr levels), level centered diagnostics at U,V or Cell
96           center position (gcode(2)='U','V','M' & gcode(3,5,9:10)='R',' ','MR')
97        b) for now, activated by setting fileFlags 3rd character to 'h'.
98    
99    checkpoint66i (2017/07/18)
100    o pkg/cheapaml:
101      - add parameter "useRelativeWind", default set to False; this change the
102        previous setting which was always using relative wind.
103    o add hooks for the Parallel Data Assimilation Framework PDAF
104        (http://pdaf.awi.de/) in eeboot_minimal.F and the_main_loop.F;
105        to use set CPP-flag USE_PDAF in CPP_EEOPTIONS.h
106    o pkg/exf:
107      - interpolation of vector fields (exf_interp_uv.F): fix bug in calculation
108        of South-Pole mean value.  
109      - interpolation near the poles, case where second additional row is at the
110        pole (or beyond the pole and moved to the pole): change first addition row
111        value to a linear interpolation between pole and 1rst (S.pole)/last (N.pole)
112        row (instead of just a copy of it).
113    o pkg/seaice:
114      - prevent JFNK and KRYLOV solvers from trying to reduce a residual of 0
115      - add the option to compute no-slip du/dy, dv/dx (i.e.
116        the offdiagonal strain rate e12) by a second order approximation
117        on the boundary; works only with JFNK, KRYLOV, or EVP solvers, because
118        it is too messy to implement for the implicit LSR matrix.
119        SEAICE_2ndOrderBC = .FALSE. by default
120    
121    checkpoint66h (2017/06/02)
122    o pkg/seaice:
123      - add new routines to compute stress tensor components and stress tensor
124        divergence to be reused in s/r seaice_lsr and s/r seaice_calc_lhs
125      - change names of diagnostics SIsigI/II (commonly used for invariants)
126        to SIsig1/sig2 (more common for principal components) to avoid confusion
127    o pkf/exf:
128      - add a stop if useRelativeWind with un-updated uwind/vwind (e.g., constant);
129        similarly, stop if rotateStressOnAgrid with constant wind-stress.
130    o pkg/seaice:
131      - remove (comment out) diagnostics SIuwind,SIvwind,SIfu,SIfv (duplicate of
132        EXFuwind,EXFvwind,oceTAUX,oceTAUY) and point them to their equivalent.
133      - add diagnostics of wind-stress over seaice (SItaux,SItauy) and seaice
134        fraction weighted wind stress over ocean+seaice (SIatmTx,SIatmTy).
135    o pkg/diagnostics:
136      - small piece of code to rename (old) diagnostics, when namelist is processed.
137    o model/src:
138      - new run-time param (useMin4hFacEdges) to select method for setting hFacW,S:
139        originally, set as minimum of adjacent hFacC factor ; now (new default)
140        computed from rSurfW,S and rLowW,S by applying same rules as for hFacC.
141        Only matters when useShelfIce=T with particular ice-shelf cavity geometry.
142    o pkg/seaice:
143      - add momemtum advection, off by default, still in test phase
144        most of the momentum advection code is adapted and reused from mom_vecinv
145    o pkg/mom_vecinv:
146      - pass these runtime flags:
147        selectVortScheme, highOrderVorticity, upwindVorticity, useJamartMomAdv
148        as formal parameters to s/r mom_vi_u/v_coriolis, mom_vi_u/v_coriolis_c4,
149        so that these routines can also be used in pkg/seaice.
150    
151    checkpoint66g (2017/04/24)
152    o model/src:
153      - more robust ordering of column thickness integral (=Sum_k(drF*hFac) )
154        to get same expression (regarding machine truncation) in different places
155        in ini_masks_etc.F (e.g., rSurfC,W,S is now exactly zero when it should).
156        Update forward output of experiments: global_ocean.cs32x15 (all 5 except
157        viscA4), isomip (x3), tutorial_global_oce_in_p & tutorial_plume_on_slope.
158    o pkg/shelfice:
159      - ALLOW_SHIFWFLX_CONTROL: move setting of maskSHI from shelfice_update_masks.F
160        to shelfice_init_fixed.F
161      - change S/R SHELFICE_UPDATE_MASKS to SHELFICE_INIT_DEPTHS (still called from
162        ini_masks_etc.F for now) to update ocean upper boundary position according
163        to ice-shelf topography (instead of directly updating hFacC).
164    o model/src:
165      - move call to CTRL_INIT & CTRL_ADMTLM from the middle to the bottom of
166        packages_init_fixed.F to allow other pkgs to set mask and weight fields.
167    
168    checkpoint66f (2017/04/06)
169    o model/src:
170      - add specific run-time param to select level of printed plot-field-maps,
171        set by default to debugLevel. Remove internal param "printDomain".
172    o pkg/seaice:
173      - add flag to add snow mass to seaiceMassC/U/V, the default is
174        SEAICEaddSnowMass=.FALSE., not to change previous results
175    o pkg/bling
176      - Bug fix in bling_production regarding unit conversion for diagnostics
177        being put in the wrong place
178    o model/src:
179      - add back recomputation of rSurfW & S to ensure consistent column thickness
180        (needed for rStar) between Sum_k(hFac*drF) and rSurf-rLow, for now only
181        when using pkg/shelfice; was initially added on 2012/06/01 (ini_masks_etc.F
182        revision 1.51) but was removed accidentally on 2014/02/08 (v1.53).
183    o pkg/autodiff:
184      - clean-up "checkpoint.flow"
185    o pkg/rw (Contribution from Jody Klymak):
186        option to set mds file suffix as function of time in simulation:
187        *) new input parameter "rwSuffixType" (read from PARM03 namelist)
188           to select file suffix format; by default (=0), use iteration number;
189        *) add simple routine to return file suffix according to rwSuffixType;
190        *) in model/src and in most pkgs (except: atm2d, fizhi, regrid & streamice),
191           use new S/R to get file suffix, except for debug output file (diagFreq)
192           and pkgs offline & rbcs input files.
193    o pkg/rw:
194      - uniform processing of "I10" suffix across writing fld routines; used to
195        simplify debug writing of cg2/3d_b/x in solve_for_pressure.F & post_cg3d.F
196        (similar to cg3d.F, cg3d_ex0.F)
197    o pkg/mom_vecinv:
198      - highOrderVorticity in selectVortScheme=2 case: fix c4 coeff in splitted
199        vorticity flux (keep same sum in case vBarXm=vBaXp, uBarYm=uBarYp).
200    o pkg/bling:
201      - Many small changes intended to clean the code.
202        Unnecessary ADJOINT_SAFEs removed ;
203        removed BLING_COST.h BLING_CTRL.h bling_cost.F ;
204        diagnostics added.
205    
206    checkpoint66e (2017/03/14)
207    o pkg/exf:
208      - interpolation with #undef EXF_INTERP_USE_DYNALLOC: move buffer size
209        definition outside EXF_PARAM.h in new header file: EXF_INTERP_SIZE.h;
210        use fixed size buffer (passed to S/R EXF_INTERP & EXF_INTERP_UV) to
211        avoid any dynamic allocation ;
212      - S/R EXF_CHECK: add new check & stop when file-name is defined but not
213        read-in ; add warning when file is read-in but not used within pkg/exf ;
214        + check for buffer-size (if #undef EXF_INTERP_USE_DYNALLOC).
215      - update exf_summary.F (print {FLD}RepCycle).
216    o verification/global_with_exf:
217      - switch on exf interpolation in AD test (just like the forward test)
218    o pkg/mom_vecinv:
219      - add storage directives to avoid recomputations within mom_vecinv.F
220        which were generating seg. fault with gfortran -devel
221    o pkg/ctrl, pkg/smooth:
222      - initialize array halos which were generating seg. fault with
223        gfortran -devel in adjoint mode
224    o pkg/exf:
225      - for each input field, enable to specify a field specific repeat-cycle
226        ({FLD}RepCycle) which defaults to pkg/exf main "repeatPeriod".
227    o verification/lab_sea:
228      - update AD results of primary test and noseaicedyn test after switching
229        to new version of TAF (5.3.13 vs 5.3.2 before); agreement with gradient
230        check stays about the same.
231    o pkg/exf:
232      - fix bug in exf_zenithangle.F for cases select_ZenAlbedo > 0 with useCAL=T.
233      - exf_check: MAX_LAT_INC need only be "loc_nlat-1", not equal to loc_nlat
234    o pkg/bling, USE_EXFCO2 code:
235      - add parameter "apco2RepCycle" (set to pkg/exf "repeatPeriod" by default);
236      - update calls to EXF S/R (use new version: EXF_INIT_FLD & EXF_SET_FLD).
237    o pkg/exf:
238      - rename S/R EXF_INIT to EXF_INIT_VARIA ;
239      - add arguments: fldName (for debug msg) and fldRepeatCycle (set to
240        repeatPeriod) to S/R EXF_SET_UV and to S/R EXF_SET_GEN (renamed EXF_SET_FLD)
241        and update calls in pkg/exf calling S/R (exf_getffields.F & exf_getclim.F) ;
242      - add argument: fldName (for debug msg) to S/R EXF_INIT_GEN (renamed
243        EXF_INIT_FLD) and update calls in exf_init_varia.F
244      - For now, for backward compatibility, keep a simplified version of S/Rs
245        EXF_SET_GEN & EXF_INIT_GEN in file exf_set_gen.F
246      - add and pass new arguments: fldName (for debug msg) and fldRepeatCycle
247        to S/R EXF_GetFFieldRec ; update calls in pkg/obcs/obcs_exf_load.F
248    o tools/genmake2:
249      - replace "bc -l" (only used once) by "expr" (already used).
250    o verification/global_ocean.cs32x15:
251      - turn off pkg/cal (useCAL=F) in secondary FWD exp. "icedyn".
252        Note: exf setting (data.exf) can be compared to other exf secondary exp
253        "seaice" (kept with useCAL=T) which has same time dependent forcing.
254    
255    checkpoint66d (2017/02/13)
256    o pkg/exf:
257      - remove setting of useCAL=T when using pkg/exf (useEXF=T); add warning
258        early on (in packages_boot.F) to stress this change in pkg setting.
259      - In (most) verification exp. that use pkg/exf, add useCAL=.TRUE. to data.pkg
260    o model/src:
261      - move call to ecco_phys to end of time step; this may induce minor
262        cost function changes by shifting time averages by one time step
263        for some variables; this revision resulted in changed adjoint results
264        in MITgcm_contrib/verification_other/global_oce_cs32
265    o pkg/exf:
266      - Change EXF_READ_EVAP to only activate code within #ifdef ALLOW_ATM_TEMP ;
267        this prevents to read evap when ALLOW_ATM_TEMP is undef and other fields,
268        e.g. precip, are not available.
269    o pkg/flt:
270      - flt_init_varia.F: use pickupSuff if specified
271      - add code (within #ifdef DEVEL_FLT_EXCH2) and test case as a first,
272        intermediate, step towards completing pkg/exch2 support within pkg/flt;
273        ifdef DEVEL_FLT_EXCH2 then:
274        - flt_init_fixed.F: comment out stop
275        - flt_exch2.F: conserve ipart, jpart (grid coordinates)
276        - exch2_recv_get_vec.F: transform ipart, jpart (grid coordinates)
277        - flt_mapping.F: attempt to fix longitude diagnostic near date-line
278        - flt_init_varia.F: hack initialization (for testing purposes w. LLC90)
279    o tools/genmake2 & pkg/pkg_depend:
280      - define new type of pkg dependency rule ("=pkg_x"), less strict than
281        the "+" rule, that add the dependent pkg (pkg_x) unless it's disabled
282        (-pkg_x in packages.conf).
283      - change pkg/exf dependency rule from "exf +cal" to "exf =cal";
284      - add "+cal" to dependency list of pkg/ecco (needed to compile).
285      - simplify FWD experiment "offline_exf_seaice" by removing pkg/cal.
286    o utils/matlab:
287      - adding ocean_basin routines for defining basin masks.
288    o pkg/exf:
289      - new S/R EXF_GETFFIELD_START replacing EXF_GETFIELD_START, but with more
290        arguments, allowing to check (and stop) if parameter setting of
291         {FLD}startdate1 & date2 and of {FLD}StartTime are consistent with
292        useCAL= T or F. For now, kept a simplified version of EXF_GETFIELD_START
293        for backward compatibility.
294      - change accordingly calls in exf_init_fixed.F + default {FLD}StartTime in
295        exf_readparms.F ; apply same changes to pkg/icefront (for SGRunOff field).
296    o pkg/bling (USE_EXFCO2 code):
297      - fix missing setting of apco2StartTime according to apco2startdate1 & date2
298        by adding a call to S/R EXF_GETFFIELD_START.
299    o pkg/exf:
300      - allows to compile without pkg/cal (but disabled by current dependency
301        rules, i.e., default "pkg/pkg_depend"). Minimal changes to enable to
302        run with useCAL=F ; this involves setting directly {FLD}StartTime instead
303        of {FLD}startdate1 & date2 ; consistency check not yet coded.
304    o verification/global_ocean.cs32x15:
305      - fix all data.exf for a shift of 1 day in all field startdate1 so that it now
306        corresponds to middle of 1rst month; update outputs (2 fwd + 3 adm + 3 tlm).
307    o pkg/exf:
308      - allow to use EXF_ZENITHANGLE without pkg/cal + simplify (saving some
309        calculations); change FWD experiment global_ocean.cs32x15
310        (#define ALLOW_ZENITHANGLE) to test/check that this code compiles.
311    o pkg/exf:
312      - In preparation for addition to NAMELIST, rename internal (_RL) parameter
313         {FIELD}startdate to {FIELD}StartTime
314        Note: new name also fit better the content, i.e, a start time in second.
315    o eesupp/src:
316      - add 1 argument to S/R EEBOOT & EEBOOT_MINIMAL for interface with ESMF
317    o pkg/exf:
318      - add option ALLOW_READ_TURBFLUXES (and corresponding set of parameters)
319        to allow to read-in Sensible & Latent Heat flux ;
320      - simplify pkg/exf main options:
321        1) move small piece of code (case ALLOW_ATM_TEMP undef) out of
322           exf_bulkformulae.F into exf_wind.F so that exf_bulkformulae.F is
323           compiled only when both ALLOW_ATM_TEMP & ALLOW_BULKFORMULAE are defined;
324        2) make call to EXF_RADIATION and to EXF_WIND independent of CPP option
325           ALLOW_BULKFORMULAE which now only applies to S/R EXF_BULKFORMULAE ;
326        3) improve options documentation in EXF_OPTIONS.h.
327    o pkg/ecco:
328      - cost_gencost_customize.F,ecco.h,ecco_phys.F,ecco_readparms.F, and
329        ecco_summary.F: add passive tracer cost functions to gencost;
330        m_ptracer and m_boxmean_ptracer
331    o pkg/ctrl:
332      - ctrl_map_forcing.F: pass myIter and myTime to ctrl_map_forcing as input
333        parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing; add to list
334        of implemented gentim2d contol parameters: xx_qnet, xx_empmr, xx_qsw,
335        xx_sst, xx_sss, xx_pload, xx_saltflux, xx_fu, xx_fv, xx_fe, xx_fn
336    o model/src:
337      - forward_step.F: pass myIter and myTime to ctrl_map_forcing as input
338        parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing
339    o pkg/exf:
340      - exf_getffields.F: add to list of implemented gentim2d contol parameters:
341        xx_lwflux, xx_swflux, xx_evap, xx_apressure, xx_areamask
342    
343    checkpoint66c (2017/01/19)
344    o verification:
345      - add new option "-src" to testreport to only produce source code (*.f),
346        including taf output src code (if using '-adm'/'-tlm' option).
347    o pkg/exf:
348      - add saltflx :: Net upward salt flux in psu.kg/m^2/s
349    o pkg/diagnostics:
350      - add run-time variable diagMdsDir to specify a subdirectory for
351        diagnostic output when mds is being used and mdsioLocalDir is not.
352    o pkg/mnc:
353      - mnc_utils.F: edit stop message
354    o pkg/autodiff:
355      - autodiff_ini_model_io.F: PRINT_MESSAGE, clean-up comments, add _*_MASTER,
356        add HAVE_SYSTEM bracket around system call to mkdir
357    o pkg/profiles:
358      - profiles_findunit.F, profiles_init_fixed.F, profiles_interp.F,
359        profiles_readparms.F: call ALL_PROC_DIE before 'stop'
360      - profiles_ini_io.F: use PRINT_MESSAGE, clean-up comments, add _*_MASTER,
361        add HAVE_SYSTEM bracket around system call to mkdir
362    o pkg/smooth:
363      - smooth_filtervar2d.F, smooth_filtervar3d.F: call ALL_PROC_DIE before 'stop'
364      - smooth_init2d.F, smooth_init3d.F: move print statements to readparms
365      - smooth_readparms.F: add cleaner print statements from smooth_init?d.F
366    o pkg/exf:
367      - check: count errors and stop cleanly at the end (call to ALL_PROC_DIE);
368        issue error message when climsst_interpMethod.GT.0 and climsst_lon_inc > 500
369        generalize tests on interpMethod, nlat, and lon_inc to all exf variables.
370      - summary: skip detailed field report if not used (empty file-name).
371    o tools/xmakedepend:
372      - In case line editor "ed" is missing, switch to "sed" command to clean-up
373        Makefile from previous dependencies (anything after "# DO NOT DELETE" line).
374    o pkg/exf:
375      - change definition of "hflux" input file to always include Short-Wave;
376        this is now consistent with hflux computation (if using bulk-formulae)
377        and hflux diagnostic & documentation (in EXF_FIELDS.h).
378    
379    checkpoint66b (2016/12/01)
380    o model & momentum pkgs:
381      - implement fully implicit bottom friction combined with implicit surf.
382        pressure, for now, only in hydrostic formulation:
383        + to use: compile with #define ALLOW_SOLVE4_PS_AND_DRAG in CPP_OPTIONS.h
384          and run with selectImplicitDrag=2 ;
385        + currently missing diagnostics of bottom drag and vert. viscosity tendency;
386      - partial implicit time-stepping (bot. friction + vert. visc first, then
387        surf. press) corresponding to selectImplicitDrag=1 should be applicable
388        to NH formulation but not available until we solve for surf. pressure
389        increment (instead of full etaN).
390      - change exp. global_ocean.cs32x15.thsice to test implicit bottom drag
391        with implicit vertical viscosity.
392    o pkg/seaice: add linear remapping scheme (Lipscomb 2001) to ITD model
393      - this is a first version that includes many regularisations that may
394        not all be necessary, to be sorted out,
395      - turned on by runtime parameter SEAICEuseLinRemapITD (true by default)
396      - change one verification experiment in seaice_itd to use and test new code
397      - seaice_growth: catch a case where the argument of log can be zero
398        or smaller (important for code stability)
399    o model/src:
400      - modify SOLVE_DIAGONAL_LOWMEMORY version of solve_tridiagonal.F
401        & solve_pentadiagonal.F to enable to re-used inverse matrix for solving
402        similar A.X'=Y' system (with same matrix A) in subsequent calls;
403        switch based on errCode (In/Out) argument value; in calling routines,
404        initialise errCode before first call.
405    
406    checkpoint66a (2016/10/18)
407    o pkg/bling:
408      - BLING package now loads in atmospheric pCO2 file using exf package routines
409        Enable with #define USE_EXFCO2 in BLING_OPTIONS.h
410    o model/src & pkg/ptracers:
411      - with INCLUDE_IMPLVERTADV_CODE defined, also call MOM_U,V_IMPLICIT_R &
412        GAD_IMPLICIT_R (instead of IMPLDIFF) when just implicitViscosity and
413        implicitDiffusion (respectively) are used (even without momImplVertAdv
414        or temp,salt,PTRACERS_ImplVertAdv).
415    o model/src & generic_advdiff:
416      - add parenthesis in main diagonal calculation of implicit vertical
417        diffusion matrix (impldiff.F & gad_implicit_r.F).
418        This affects results at machine truncation level; update output of many
419        verification experiments (31 fwd ; 10 adm ; 8 tlm ; 3 oad).
420    o pkg/mom_commom & generic_advdiff:
421      - add deep atmosphere and anelastic scaling factor in implicit vertical
422        advection routines (mom_u,v_implicit_r.F & gad*_impl*_r.F).
423    o model/src:
424      - remove few unnecessary temp array copies in solve_tridiagonal.F
425        & solve_pentadiagonal.F
426    
427    checkpoint65z (2016/09/28)
428    o pkg/seaice: fix multithreading for seaice_fgmres.F
429      - remove unecessary variables from common blocks
430      - use extra dimension MAX_NO_THREADS for all variables of the Krylov space
431        basis, that are stored in commom blocks (including integer variable i1)
432      - clean up code a little by removing commented lines that refer to
433        original code
434      - turn on multi-threaded test for experiment offline_exf_seaice.dyn_jfnk.
435    o MITgcm manual:
436      - add uptodate pkg/ecco documentation to the manual (section 8.1; ecco.tex),
437        preliminary documentation for generic controls (8.3; ctrl.tex),
438        a placeholder for smooth (8.4; smooth.tex), and comment out the deprecated
439        ecco_costfunction.tex
440    o pkg/ecco:
441      - update and cleanup list of CCP options
442      - re-assign gencost_mask to specify masks rather than gencost_errfile; 'c'
443        is now always passed to cost_generic; gencost_mask is now MAX_LEN_FNAM
444      - add checks that retired run-time options are not used, and in relation
445        to gencost_mask and gencost_errfile
446      - finish deprecating gencost_scalefile, gencost_smooth2Ddiffnbt, and
447        gencost_nrecperiod
448      - fix m_eta computation for virtual salt flux case
449      - add m_horflux_vol case (selected via gencost_barfile) that computes
450        transports via cost_gencost_boxmean (gencost_flag=-3)
451      - use gencost_flag more systematically (i.e., avoid using gencost_name)
452        for code switches (aside from physical variable selection)
453    o pkg/seaice: make seaice_fgmres.F fit for multithreading; this first
454      attempt appears to be a bit of a hack and my need some repair down the road
455    o pkg/exf:
456      - interpolation near South Pole: fix criteria on input field latitude.
457    o pkg/icefront & pkg/exf:
458      - move setting of icefront Sub-Glacial RunOff forcing (currently unused)
459        from pkg/exf (read from data.exf) to pkg/icefront (read from data.icefront)
460    o pkg/exf:
461      - replace CPP option ALLOW_EXF_OUTPUT_INTERP with run-time parameter
462        "exf_output_interp" (in namelist: EXF_NML_04); change output file name
463        (add suffix "_out" instead of a prefix); keep same record number as in
464        input file but always write record 1 first (to avoid a STOP in I/O S/R).
465        Change output file content by writing interpolated field before applying
466        land-sea mask (helpful for debug).
467      - 2 compon. vector interpolation with rotation: apply scaling factor on
468        each compon. (Eastward and Northward) just before rotation.
469    o pkg/bling:
470      - Cleaned package. Removed not needed code and comments.
471      - adjoint example now works
472        (MITgcm_contrib/verification_other/global_oce_biogeo_bling/code_ad)
473    o pkg/ptracers:
474      - add Bruno Deremble's code to complete the linear surface correction
475        for tracer conservation;
476      - enabled for individual ptracers by PTRACERS_linFSConserve(iTr)=.TRUE.
477    
478    checkpoint65y (2016/07/29)
479    o pkg/debug (stats):
480      - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
481        proc/thread mapping);
482      - fix Min & Max for case where 1 thread has only empty tiles;
483      - use RL variable to count number of wet grid points (with big domain,
484        can be too large to fit into integer*4).
485    o pkg/monitor:
486      - use RL variable to count number of wet grid points (but used only for del2)
487      - add new routine to compute Advective CFL within tracer time-stepping with
488        writing delayed until next monitor output.
489    o pkg/obcs:
490      - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
491    o pkg/cal:
492      - calandar-dump: treat case myTime < timePhase in the same way as in
493        eesupp/src/diff_phase_multiple.F (when not using calandar-dump).
494    o pkg/dic & seaice:
495      - fix compilation of ocean component for coupled atm+ocn model with
496        seaice dynamics & dic.
497    
498    checkpoint65x (2016/06/11)
499    o add a license text file in main MITgcm tree.
500    o added pkg/bling:
501      - intermediate complexity biogeochemical model
502      - see bling_description.txt for details
503      - verification experiment is global_oce_biogeo_bling (for now, in
504        Contrib/verification_other/); tested daily on baudelaire with gfortran.
505      - add entry point in pkg/gchem for new pkg "bling".
506    o pkg/seaice: fix tensile stength computation
507      - replace global field tensileStrength by tensileStrFac
508      - tensileStrFac can be computed once in S/R seaice_init_varia
509      - fortunately that does not affect any verification results
510    
511    checkpoint65w (2016/05/12)
512    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
513         with ECCO_CTRL_DEPRECATED defined
514    o verification/global_ocean.cs32x15:
515      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
516        with "selectNHfreeSurf=1".
517    o model/src (non-hydrostatic free-surface):
518      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
519        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
520      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
521        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
522        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
523        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
524      - Update output (changes at machine truncation level) of verification exp:
525        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
526        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
527    o pkg/seaice: ITD code
528      - fix picking up from a single category model by initialising
529        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
530      - split a long warning message in seaice_check_pickup.F into two lines,
531        because NEC SX-ACE cannot deal with the long line.
532    o model/src:
533      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
534    o pkg/seaice:
535      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
536    o pkg/seaice:
537      - add basal stress as parameterisation for grounding ice
538        following Lemieux et al. (2015)
539      - turn on by setting new parameter SEAICEbasalDragK2 to a value
540        larger than 0. Lemieux et al. (2015) recommend 15.
541      - The adjoint complains with extra recomputations so there is also a
542        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
543        order to postpone the problem
544      - compile the new code in lab_sea
545    o verification/halfpipe_streamice:
546      - update both TAF and OpenAD adm output (machine truncation differences)
547    
548    checkpoint65v (2016/04/08)
549    o verification/advect_xz:
550      - increase overlap size from 3 to 4 and add new secondary test for PQM
551        advection scheme (with mono & wino limiter).
552      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
553    o model/src:
554      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
555        added phi0Ref) to set vertical axis origin and phiRef origin;
556        keep Ro_SeaLevel for backward compatibility (with a warning).
557       According to coordinate and fluid type:
558        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
559        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
560        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
561        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
562      - remove Ro_SeaLevel from ATM experiment parameter files;
563      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
564        complement; update output.txt (changes at machine truncation level).
565    o pkg/seaice/seaice_evp.F
566      - simplify computation of deltaZ and zetaZ to simple averaging following
567        Bouillon et al. (2013). This removes a lot of code, but also changes
568        verification experiment lab_sea.hb87 -> updated
569    
570    checkpoint65u (2016/03/14)
571    o pkg/generic_advdiff:
572      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
573        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
574        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
575        testing and not for actual use.
576    o model/src:
577      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
578        origin r = rF(1);
579      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
580        in EOS for height coordinate: enable to include NH Pressure or to use
581        more accurate pressure vertical profile; options not linked to EOS type
582        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
583      - start to implement variable gravity (along vertical): for now, only with
584        z-coords (not even z*).
585      - add Ideal Gas equation of state for height coordinate.
586      - update OpenAD output (affected at machine truncation level) of exp:
587        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
588    o pkg/exf:
589      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
590        of exf interpolation (before any rescaling, rotation or interpolation
591        to velocity point) for each field that gets loaded from file. This option
592        identically mimics the input file organization (e.g. record numbers in year
593        by year input files) besides the change in horizontal grid.
594      - add rotateStressOnAgrid run-time switch so that wind stress fields
595        can be provided on the A-grid in zonal/meridional direction and
596        rotated on the fly. This only applies to the case when the exf
597        interpolation is off and rotateStressOnAgrid is false by default.
598    o model/src:
599      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
600        it's also used with pkg/atm_phys) and add few more parameters (but still
601        inactive, src code yet to come)
602    
603    checkpoint65t (2016/02/10)
604    o pkg/atm_phys:
605      - from Ruth Geen: add optical depth dependence on CO2 concentration.
606    o model/src:
607      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
608        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
609        Update output of exp. deep_anelastic (changes at truncation level).
610    o tools:
611      - add a hack in "remove_comments_sed" (used only with TAF) for recent
612        version of OpenMPI (shipped with FC.23): comment out the new header
613        file "mpif-sizeof.h" which causes problems to TAF.
614    o pkg/seaice:
615      - change the termination criterion so that maxits (SEAICElinearIterMax)
616        has an effect
617      - unify iteration parameters for implicit solvers (JFNK and Picard)
618        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
619        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
620        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
621        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
622        SEAICEnonLinTol     replaces JFNKgamma_nonlin
623      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
624      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
625        use with SEAICEuseKrylov
626    o pkg/seaice/seaice_lsr.F
627        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
628        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
629        an effect.
630    o pkg/seaice: add two new parameters
631      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
632        parameter is not in any namelist)
633      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
634        a preconditioner for the non-linear Newton iteration of the JFNK
635        solver
636    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
637      affects some experiments at truncation level:
638      - global_ocean.cs32x15.icedyn (11 digits),
639      - global_ocean.cs32x15.seaice (11 digits),
640      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
641      - also update global_ocean.cs32x15 adjoint and tangent-linear results
642    o pkg/salt_plume & pkg/thsice:
643      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
644        connect salt_plume flux to ATM-OCN coupling pkgs interface:
645       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
646         export to coupler interface) even without compiling pkg/salt_plume ;
647       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
648         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
649    o pkg/dic:
650      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
651        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
652        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
653      - move also update with values from ATM-OCN Coupler in the same new S/R
654        (previously done in ocn_apply_import.F).
655    o tools/adjoint_options:
656      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
657        has been changed on Jan 14, 2016.
658    o pkg/ggl90:
659      - add alternative discretisation of vertical shear (off by default), to
660        compute the mean (@ grid-cell center) of vertical shear compon instead of
661        vertical shear of mean flow (@ grid-cell center).
662      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
663        results on adjacent faces of cubed-sphere grids; this fix the restart.
664    o pkg/atm_compon_interf:
665      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
666        pass last value, stored directly before export to CPL ;
667        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
668      - remove atmSLPr from pickup files (no longer needed for restart)
669    
670    checkpoint65s (2016/01/13)
671    o eesupp & genmake2:
672       - first check for Function ETIME and, if it fails, then check for subroutine
673         ETIME and consistent output; use the appropriate version in timers.F
674    o model/src:
675      - to check restart test, add option to apply EXCH to U,V earlier, just before
676        integr_continuity; turned off by default.
677    o pkg/dic:
678      - remove CPP option USE_ATMOSCO2 (not needed)
679    o tools/tst_2+2:
680      - try to ignore difference between +0 and -0 in binary file, causing test
681        to fail for no good reason.
682    o eesupp & genmake2:
683      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
684        but also check (in genmake2) that test runs and returns meaningful results.
685    o coupler pkgs:
686      Finish implementation of optionally-exchanged variable switches (started on
687       Nov 12) with addition of few more exchanged fields, including 2-way exchange
688       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
689       advection in OCN component; this requires sequential coupling.
690      coupler (pkg/atm_ocn_coupler):
691      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
692        routines (useful for debug).
693      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
694         flux, DIC fields) if corresponding switch is ON.
695      - add option to export RunOff to OCN (to use for DIC river input)
696      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
697      components (pkg/atm_ & ocn_compon_interf):
698      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
699        optionally exchanged fields; add a check & stop in cpl_readparms.F.
700        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
701        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
702      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
703        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
704      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
705      - hold in common block coupler optionally-exchanged variable switch
706        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
707      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
708        this is intended to replace the OCN cplFldtave.* output files (not updated
709        to contain new additional exchanged fields).
710    o pkg/dic:
711      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
712    o pkg/thsice:
713      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
714        and writing of thsice pickup files.
715    o pkg/atm_compon_interf:
716      - move all field individual export-call out of cpl_export_import_data.F
717        into new S/R ATM_EXPORT_FIELDS
718    o pkg/atm_compon_interf:
719      - store state variables (for now, only thSIce fields) just before beeing
720        exported (in cpl_export_import_data.F, like on ocean side) instead of from
721        atm_store_my_data.F like all exported fluxes.
722      - new version of pickup_cpl: write field names into meta file and read meta
723        file to find field postion in pickup. Also only write/read fields meeded for
724        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
725    o pkg/dic:
726      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
727    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
728        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
729        value can be from domain [0,1] to average between the two methods
730    o pkg/atm_phys:
731      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
732        hold fixed in time).
733    
734    checkpoint65r (2015/12/21)
735    o pkg/seaice:
736        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
737        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
738    o pkg/seaice:
739      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
740        when SEAICEscaleSurfStress=.TRUE.,
741      - apply areaW and areaS in S/R seaice_calc_lhs
742    o pkg/atm_phys:
743      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
744        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
745        for individual contribution (convection, LSC cond, radiation)
746      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
747        information); activated with: solar_exponent=0. and wv_exponent=-1.
748    o pkg/ggl90:
749      - within IDEMIX add upper limit for horizontal group velocity to
750        avoid instability problems in the explicit horizontal diffusion term for
751        long time steps or high resolution
752    o pkg/diagnostics:
753      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
754        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
755    o testreport:
756      - remove "-v" (verbose option) in default mpirun command.
757    o pkg/seaice/seaice_growth:
758      - catch potential division by zero in ITD code, does not change
759        verification results
760    o pkg/ecco:
761      - retire old codes to the Attic. The calls to retired functions are
762        left in a commented form in case they ever need to be re-activated.
763      - ecco_check.F: issue warning if any old CPP option is
764        defined that corresponds to retired codes -- then stop.
765    o pkg/atm_compon_interf:
766      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
767        coupler: use last time-step value instead of average over cplSendFrq_iter
768        time-step, similar to what is done for seaIceMass.
769        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
770    o eesupp & genmake2:
771      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
772        <= remove until a fix is found for some ifort version on ia32 machine.
773    o pkg/seaice/seaice_evp:
774      - refine residual computation
775    
776    checkpoint65q (2015/11/18)
777    o pkg/seaice/seaice_evp:
778      - fix residual computations so that they no longer affect the actual
779        simulation code
780      - fix seaice_readparams to be able to actually set new parameters
781        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
782    o model/src:
783      - fix wrong truncation (single prec) from "FLOAT" function in expressions
784        like: deltaT*FLOAT(myIter) when myIter is large:
785         a) replaced by DFLOAT (if not seen by TAF);
786         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
787    o pkg/aim_v23:
788      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
789        when pickupSuff is set ; do write rolling pickups + at the end of the run.
790    o pkg/atm_ocn_coupler + ocn_compon_interf:
791      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
792        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
793        add corresponding call in DO_OCEANIC_PHYS.
794    o coupler pkgs:
795      Start a new way to set-up optionally-exchanged variables (previously, only
796       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
797       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
798       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
799       compononent param default can be set accordingly).
800      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
801       but rather applies to a group a fields (going both ways like for DIC)
802       and corresponds to an option of coupling config.
803      coupler (pkg/atm_ocn_coupler):
804      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
805        and read namelist directly (without eessup S/R calls) instead of
806        in the very un-flexible old way, 1 param per line, in fixed order;
807      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
808        cleanly in CPL_CHECK_CPLCONFIG
809      - add new coupling-exchange selectors (some not yet active) including
810        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
811                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
812      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
813        component ; called directly from coupler.F, after comp. registrations;
814      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
815         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
816          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
817      components (pkg/atm_ & ocn_compon_interf):
818      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
819        CPP header file in all pkg source files.
820      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
821        ATM/OCN_CHECK_CPLCONFIG;
822      - add error-counter to track errors (e.g., in "data.cpl") and to stop
823        cleanly in ATM/OCN_CHECK_CPLCONFIG;
824      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
825        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
826        before PACKAGES_READPARMS;
827      verification/cpl_aim+ocn/:
828      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
829        "data.cpl" for coupler (in input_cpl).
830    o eesupp/inc:
831      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
832        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
833        to always cumulate tile local-sum in the same order (still uses
834        MPI_Allreduce like standard code).
835      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
836        that are now identical to standard version (in eesupp/inc).
837    o pkg/shelfice:
838      - add SHELFICETransCoeffTFile for initializing spatially varying
839        heat and salt transfer coefficients
840    o pkg/atm_compon_interf & ocn_compon_interf:
841      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
842        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
843      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
844    o pkg/atm_ocn_coupler:
845      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
846    o pkg/rbcs:
847      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
848        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
849      - add a short report (to STDOUT) about RBCS-mask settings.
850    
851    checkpoint65p (2015/10/23)
852    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
853        there is no adjoint test for EVP, we don't know what it does to the adjoint
854        solution, but at least there are no more recomputation warnings left
855    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
856        a chance of giving the same results as a fully converged VP (JFNK) solver
857    o tools/adjoint_options/adjoint_diva:
858      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
859    o pkg/streamice:
860      - spotted bug in streamice_driving_stress using dyG where should have been dxG
861    o pkg/exf:
862      - remove STOP statement that prevented to use wind or (wind-)stress
863        interpolation for constant-in-time forcing fields (wind/stress period = 0).
864    o pkg/seaice:
865      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
866        5 additionals 2D fields and 6 new store directives
867      - change logic in seaice_readparms.F: EVP code can now be turned on in
868        various ways, setting SEAICE_deltaTev is no longer required,
869        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
870        or SEAICEaEVPcoeff
871    o pkg/shelfice/shelfice_thermodynamics.F
872      - redefining uLoc/vLoc to u/v, instead of 2u/v
873    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
874      - this is an intermediate state of a truely converging EVP that has
875        the potential of outperforming implicit VP methods, I do not recommend
876        using it yet.
877      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
878        and all parameters are hardwired
879      - for convergence it still requires very smooth regularisations, that means,
880        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
881        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
882        specific averaging appears to be required, still subject to tuning
883      - still needs cleaning and I need to turn parameter into runtime parameters
884      - add code to compute and print residuals of iteration, compile with
885        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
886    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
887      that entered with r1.54 on Sep04, 2015, -> update results
888    
889    checkpoint65o (2015/09/14)
890    o pkg/mom_vecinv & mom_common:
891      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
892        called from there.
893      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
894        allows to use Vector-Invariant form in deep atmos and anelastic formulation
895    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
896      and Koenig-Beatty+Holland (2012)
897      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
898      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
899      - requires an extra input argument for S/R seaice_calc_viscosities
900      - tensileStrength's depth dependence is different from Itkin et al. (2015)
901        (to be changed and played with, for now exponential)
902    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
903      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
904        by AREA according to Connelly et al. (2004), JPO.
905      - For EVP and the LSR solver, the implicit part of the drag term is
906        the only non-zero term in the denominator when there is no ice (which
907        prevented running the model with zero ice-ocean drag). If
908        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
909        (or zero main diagonals BU/BV) which need to be caught. A practical
910        consequence is that for open water, the momentum equation reduce
911        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
912        they happen to be zero, often leading to a non-zero solution over
913        open water.
914    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
915        efficient EVP method.
916      - introduce area-weighted averages for e12 (analogously to
917        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
918        remain, but also changing the order of terms in the previous average
919        changed the results as much) -> update experiment
920      - add SEAICE_DELTA_SMOOTHREG code
921      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
922        TEM-code
923      - adjust loop bounds so that only required fields are computed
924      - add new averaging code for zetaZ/deltaZ (again similar to
925        seaice_calc_viscosities.F), inactive by default for now (will change
926        results again), but will replace old code eventually
927    o eesupp/src:
928      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
929        to always cumulate tile local-sum in the same order
930        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
931        Still uses MPI_Allreduce (like standard code) but on array of tiles
932        and should be faster than GLOBAL_SUM_SEND_RECV code.
933      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
934        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
935      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
936         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
937         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
938         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
939         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
940    
941    checkpoint65n (2015/07/29)
942    o pkg/thsice:
943      - add a warning when used with pkg/aim but without updating SST
944        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
945    o pkg/offline:
946      - change where Offline-Fields are loaded, from load_fields_driver.F to
947        directly within FORWARD_STEP, just after updating iter number and time;
948      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
949        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
950       These changes allow:
951        a) to recover exactly on-line results using deltaToffline=deltaTClock,
952        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
953        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
954        time-step, both with GM & KPP files and with recomputing these fields;
955        b) no needs to switch on staggerTimeStep anymore;
956        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
957      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
958    o pkg/offline:
959      - change (rarely used) offset-iteration parameter to an offset time (in s):
960        can easily recover previous offset-iter effect by setting offset-time
961        (offlineTimeOffset) to offset-iter x deltaToffline;
962      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
963        in KPP as part of surface buoyancy forcing) in offline run.
964      - fix ptracers KPP non-local term in the case where KPP is re-computed.
965    o OpenAD
966      - Adding preliminary ggl90 test to OpenAD verification.
967        Config. with ggl90 currently diverges after 64 time steps
968        so will need more work to become more stable
969      - Adding preliminary kpp test to OpenAD verification.
970        required small tweakes in kpp_routines.F
971      - Merge and update from Krishna Narayanan's contrib area:
972        * Add one variable for preliminary OpenAD DIVA
973        * Add replacement time-stepping for OpenAD DIVA
974        * genmake2 flag -diva (but only for OpenAD; preliminary)
975        * required modifs for OAD_support
976        successful preliminary test for tutorial_global_oce_biogeo/
977    o pkg/seaice:
978      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
979      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
980        delta with a smooth function in s/r seaice_calc_viscosity
981        (no effect on EVP)
982      - rename local suffix "sqr" into "sq" for more consistent variable names
983    o pkg/seaice:
984        add new parameter SEAICE_deltaMin that is used ***only***
985        for regularizing Delta (and nothing else, like the parameter
986        which is also used for all sorts of things SEAICE_EPS).
987        Defaults to SEAICE_EPS for backward compatibility only.
988    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
989        the wrong key by inialising it before use -> fixes a recomputation
990        problem but does not fix the gradient
991    o pkg/layers:
992      - move resetting of flux arrays to outside the iLa loop
993        (this caused layers_diapycnal to not work with more than one layer coord.)
994      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
995    o pkg/layers:
996      - remove from common block 3D layers fields (used to diagnose transport
997        in tracer coords) and declare them as local arrays in layers_calc.F
998    o pkg/seaice:
999      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
1000        in lab_sea forward experiment (changes results -> updated)
1001      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
1002    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
1003       computations; for SEAICE_VECTORIZE_LSR
1004      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
1005        sweep to the outside,
1006      - remove store directives and add "CADJ loop sequential" directives
1007        in analogy to model/src/solve_tridiagonal.F
1008      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
1009        boundaries to yield more readable code. This has also the charming side
1010        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
1011        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
1012        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
1013        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
1014        an additional option)
1015       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
1016       but the adjoint gradients (which are affected by this change) still explode.
1017    o coupler (atm & ocn _compon_interf):
1018      - avoid using Exch2 IO mapping if not suitable.
1019    
1020    checkpoint65m (2015/06/15)
1021    o pkg/layers:
1022      - clean-up old parameters setting (from Sep 2012):
1023        + remove old parameters setting from common block (declared locally);
1024        + stop if any old parameter is mixed with new parameters;
1025        + check for valid or consistent parameter setting (e.g., layers_name)
1026      - check that layers_bounds for Pot.Density are in the right range;
1027        this is supposed to catch un-updated setting after recently shifting
1028        potential density field "prho" by -1000 (now in "sigma" scale).
1029    o pkg/layers:
1030      - Added missing call to layers_fill for keeping track of tottend in
1031        pkg/diagnostics/diagnostics_fill_state.F
1032    o pkg/layers:
1033      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
1034        of diapycnal fluxes
1035    o pkg/layers:
1036      - reverted changes to interpolation to previous treatment; there
1037        was never actually a problem
1038    o pkg/layers:
1039      - fix interpolation of layers tracers in the presence of partial cells
1040      - add lots of new functionality to compute water mass transformation
1041        (enabled by CPP flag LAYERS_THERMODYNAMICS)
1042      - add new calls from main code (diags_oceanic_surf_flux.F,
1043        thermodynamics.F, impldiff.F) and gad to save the necessary fields
1044        for layers_thermodynamics calculations
1045    o pkg/ptracers:
1046      - add capability of stepping a passive tracer forward without advection
1047        by setting PTRACERS_advScheme to 0.
1048    o pkg/diagnostics:
1049      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
1050    o pkg/layers:
1051      - shift potential density field "prho" by -1000 for density layer averaging so
1052        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
1053        Note that density bin boundaries (layers_bounds in data.layers) have
1054        to be set accordingly (i.e., shifted, in sigma scale).
1055    o pkg/layers:
1056      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
1057      - fix calculation of layer non-weighted velocity and layer probability
1058      - add diagnostics for pot.density used for layer averaging
1059    o pkg/seaice:
1060      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
1061        positiveness, modify a few comments and improve variable names,
1062      - the changed computation of deltaC affects most seaice-related
1063        experiments at the truncation level.
1064        seaice_itd.thermo is affected by far the most, with
1065        only 7 digits of agreement remaining; update experiments.
1066    
1067    checkpoint65l (2015/05/04)
1068    o pkg/shelfice:
1069      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
1070        factor drKp1 to zero where it is negative (ie. do not use
1071        SHELFICEBoundaryLayer if hFacC>1)
1072      - the same for factor drLoc in shelfice_forcing.F
1073    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
1074        with modules in ptracers, when using testreport option "-small_f"
1075    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
1076      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
1077    o verification/testreport
1078      - add new option -small_f
1079        with this option testreport first makes the target small_f (*.f files)
1080        before running make (all). This is useful for explicit inlining when
1081        all sources need to be full available.
1082    o pkg/exf/exf_interp.F:
1083        remove previous changes related to reverse (decreasing) input grids latitude
1084    
1085    checkpoint65k (2015/04/01)
1086    o pkg/ecco:
1087        fix missing cosphi initialization; use eccoiter in place of optimcycle;
1088        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
1089        instead of active read/write
1090    o pkg/ctrl:
1091        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
1092        instead of active read/write.
1093    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
1094        return if .NOT.useAUTODIFF
1095    o pkg/seaice: add CPP brackets (cost function related).
1096    o model/src:
1097        add useAUTODIFF run time switch.
1098    o pkg/exf/exf_interp.F:
1099        add code to allow input grids with latitude starting in the north (i.e. when
1100        j=1 corresponds to northern edge of field); modify global_with_exf to test
1101        this feature.
1102    o verification/testreport:
1103      - replace "grep -A3" with POSIX conformal sed command, because there are
1104        implementations of grep that cannot do contextual searches
1105      - replace "cat -n" by "nl" (two occurrences), because not all implementations
1106        of "cat" have the option "-n"
1107    o model/src:
1108        add new file gsw_teos10.F that contains 3 functions, more or less a copy
1109        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
1110        convert from conservative to potential temperature. For now they are not
1111        called anywhere.
1112    o pkg/ggl90: make "useIDEMIX" useful
1113      - re-organize code in s/r ggl90_calc a little to move computations that
1114        are different for idemix into separate loops (changes verification
1115        experiment idemix at truncation level, 12 digits remain -> updated)
1116      - requires 2 new 2D fields KappaM, verticalShear
1117      - make hFacI and recip_hFacI local 3D variables that are passed to
1118        s/r ggl90_idemix
1119      - fix and improve some comments
1120    
1121    checkpoint65j (2015/02/25)
1122    o pkg/openad
1123      - synchronize seawater.F with version in model/src: replace routine
1124        body of sw_temp by calling sw_ptmp and fix/add a few comments.
1125    o pkg/mnc:
1126      - change default value of pickup_read/write_mnc params to FALSE
1127        (since few features are missing in reading MNC pickup files).
1128    o model/src:
1129      - change default (background) vertical diffusivity for salt to be the
1130        temperature (background) vertical diffusivity.
1131      - change background vertical diffusivity in vertical mixing pkgs ggl90,
1132        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
1133        This makes ptracers default diffusivity (that uses salt diffKr) more
1134        consistent with vertical mixing schemes.
1135    o verification/testreport:
1136      - fix typo in "-pcls" option ;
1137      - put temp files in /tmp (instead of in local dir)
1138      - add option "-ncad" to use genmake2 new option "-nocat4ad"
1139      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
1140    o pkg/ggl90 (idemix code):
1141      - apply few fixes ; add some missing "_d 0" ; update output of exp.
1142        global_ocean.90x40x15.idemix
1143    o OpenAD
1144      - enable active file I/O and begin removal of work-around code
1145        for OpenAD for handling control variables (memory vs. active files)
1146      - new CPP options file OPENAD_OPTIONS.h
1147      - revert to genarr2d gradient check for hs94.1x64x5
1148      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
1149      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
1150    o tools/genmake2:
1151      - add option for an alternative Makefile (from Martin) where multiple
1152        source files are sent to TAF (instead of all in one file).
1153    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
1154      - code provided by Carsten Eden as an extension of ggl90
1155      - so far the code is turned on within ggl90 by setting a CPP-flag at
1156        compile time; a runtime flag implementation is not yet complete
1157      - tested in new verification experiment global_ocean.90x40x15.idemix
1158    o verification:
1159      - reduce length of the AD test run by half for experiments
1160        global_ocean.cs32x15 (std + thsice) and isomip
1161      - enable active file I/O for OpenAD, adjust verifications accordingly
1162      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
1163    o verification/testreport:
1164      - fix two non-POSIX sed statements so that there are no error messages
1165        on Mac OS X
1166      - replace hostname -s with hostname | sed 's/\..*$//'
1167    o model/src/seawater.F:
1168      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
1169        (following the matlab code), which would have avoided the bug caught
1170        by Matt (see below) in the first place
1171    o pkg/shelfice:
1172      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
1173        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
1174      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
1175        ice-shelf case (i.e., within surface level).
1176      - add config summary in shelfice_check.F
1177      - remove global variable recip_SHELFICElatentHeat and replace by a local
1178        variable recip_latentHeat
1179      - introduce diagnostics for friction velocity uStar (in case of
1180        SHELFICEuseGammaFrict)
1181      - change verification experiment isomip.htd:
1182        + start from pickup (as input_ad at nIter0=8640)
1183        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
1184        + test SHELFICEuseGammaFrict = .TRUE.
1185        + test SHELFICEadvDiffHeatFlux = .TRUE.
1186    o model/src:
1187      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
1188        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
1189        update output of experiments global_with_exf.yearly and isomip (all 6).
1190    o pkg/shelfice:
1191      - change setting of kTopC to also be zero where there is no ice-shelf.
1192      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
1193        ice-shelf is.
1194      - first attempt to get RealFreshWaterFlux effects: for now, only without
1195        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
1196    o pkg/seaice: add the option to prescribe a fixed thickness PDF
1197      for thermodynamic calculations
1198      - because of divisions of the type 7/7 not exactly equal to 1, this change
1199        affects results of some verification experiments by up to 4 digits:
1200        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
1201        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
1202        adjoint: lab_sea, lab_sea.noseaicedyn
1203        -> updated
1204    
1205    checkpoint65i (2015/01/23)
1206    o model/src:
1207      - change units of frictionHeating field from W to W/m^2
1208      - fix bug in frictional heating from stratospheric drag in
1209        S/R ATM_PHYS_TENDENCY_APPLY_V
1210      - with synchronous time-stepping: move resetting to zero of frictionHeating
1211        field from load_fields_driver.F to thermodynamics.F ;
1212      - add diagnostics for frictional heating.
1213    o model/src & gmredi K3D:
1214      - add frictionHeating field to pickup-files (for synchronous time-stepping)
1215      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
1216      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
1217        and name in pickup file).
1218      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
1219    o model/src:
1220      - move (from ini_forcing.F) initialisation of all arrays in header file
1221        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
1222        (since Nov 2012) with option selectAddFluid=1.
1223    o pkg/shelfice:
1224      - change units (+ document) of newly added field "shelfIceMassDynTendency"
1225      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
1226    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
1227    o pkg/seaice: two new runtime parameters:
1228      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
1229        long overdue
1230      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
1231        parameterization of tensil stress for fast ice (does not do anything yet)
1232    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
1233        for LSR: move checking overlaps out of JFNK-if-block
1234    o pkg/atm_phys:
1235      - move copy of grid and dynamical fields out of atm_phys_driver.F into
1236        new S/R ATM_PHYS_DYN2PHYS.
1237      - fix level height for Linear Free-Surf case (to be consistent with
1238        fixed-in-time pressure levels).
1239    o pkg/mom_common (bottomdrag):
1240      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
1241        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
1242        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
1243    o pkg/shelfice (u/v_drag):
1244      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
1245      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
1246        (now similar to shelfice_u_drag.F)
1247      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
1248        from mom_vecinv.F (similar to mom_fluxform calls).
1249    o pkg/mom_common (bottomdrag):
1250      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
1251      - add options for alternative discretisation of velocity norm in quadratic
1252        bottom drag: averaging of grid-cell-center KE to U.point and V.point
1253        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
1254        improves when averaging only the other component (e.g. vVel for U bottom
1255        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
1256      - add options (bottomVisc_pCell) to account for partial-cell in bottom
1257        friction (no-slip BC) thus getting the true distance from the bottom;
1258        off by default since this also reduces model stability (explicit bottom
1259        friction). Changes produce different machine truncation with linear-drag
1260        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
1261        front_relax (bvp & mxl, 10 & 11 digits).
1262    o model/src & mom pkgs:
1263      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
1264        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
1265      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
1266        just copy level Nr value to level Nr+1.
1267    o doc:
1268      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
1269    o pkg/shelfice:
1270      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
1271        SHELFICE.h: move array shelficemass to init_varia, initialise
1272        from array shelficemassinit, which is set in init_fixed and
1273        has option to be set from file; introduce array
1274        shelficeMassDynTend array, set thru file in init_fixed
1275      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
1276        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
1277        pkg/streamice
1278      - shelfice_thermodynamics.F: call shelfice_step_icemass if
1279        SHELFICEMassStepping = .true.
1280      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
1281    
1282    checkpoint65h (2014/12/17)
1283    o verification/global_ocean.90x40x15, global_ocean_ebm:
1284      - update to generic controls.
1285    o pkg/ctrl:
1286      - ctrl_map_ini_genarr.F: test for igen>0
1287      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
1288      - move gentim2d part of ctrl_map_ini_genarr.F to
1289        new separate routine : ctrl_map_ini_gentim2d.F
1290      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
1291        add time variable weights and cyclic controls (time mean,
1292        seasonal cycle, etc) capabilities to gentim2d
1293    o pkg/ecco:
1294      - move reading of error, conversion to weights from
1295        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
1296    o global_oce_llc90, cs32:
1297      - activte sbo.
1298      - CTRL_SIZE.h : add maxCtrlProc.
1299      - activate the new genctrl capabilities.
1300      - update following reorganization of global_oce_input_fields.tar.gz  
1301    o pkg/ctrl/ctrl_ad_diff.list:
1302      - add missing ctrl_init_rec.f
1303    o tools/OAD_support/keepOriginal:
1304      - add ctrl_init_rec.F
1305    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
1306      - avoid recomputations of xx_gentim2d_dummy.
1307    o momentum diagnostics:
1308      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
1309        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
1310    o pkg/seaice/seaice_lsr.F:
1311      - fix computation of BU/BV, make sure they are non-zero, only necessary
1312        for cubed sphere exchanges and SEAICE_OLx/y>0.
1313        This makes calling s/r fill_cs_corner_rl obsolete (removed).
1314    o verification/global_ocean.cs32x15/input.seaice
1315      - add test for strong implicit coupling and restricted addtive Schwarz
1316        methods for LSR
1317      - update results/output.seaice.txt
1318  o verification/tutorial_global_oce_biogeo:  o verification/tutorial_global_oce_biogeo:
1319    - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)    - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
1320      and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);      and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);

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