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revision 1.1889 by dimitri, Mon Jul 1 16:55:57 2013 UTC revision 1.2335 by mlosch, Thu Jun 8 15:35:52 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/seaice:
8      - prevent JFNK and KRYLOV solvers from trying to reduce a residual of 0
9      - add the option to compute no-slip du/dy, dv/dx (i.e.
10        the offdiagonal strain rate e12) by a second order approximation
11        on the boundary; works only with JFNK, KRYLOV, or EVP solvers, because
12        it is too messy to implement for the implicit LSR matrix.
13        SEAICE_2ndOrderBC = .FALSE. by default
14    
15    checkpoint66h (2017/06/02)
16    o pkg/seaice:
17      - add new routines to compute stress tensor components and stress tensor
18        divergence to be reused in s/r seaice_lsr and s/r seaice_calc_lhs
19      - change names of diagnostics SIsigI/II (commonly used for invariants)
20        to SIsig1/sig2 (more common for principal components) to avoid confusion
21    o pkf/exf:
22      - add a stop if useRelativeWind with un-updated uwind/vwind (e.g., constant);
23        similarly, stop if rotateStressOnAgrid with constant wind-stress.
24    o pkg/seaice:
25      - remove (comment out) diagnostics SIuwind,SIvwind,SIfu,SIfv (duplicate of
26        EXFuwind,EXFvwind,oceTAUX,oceTAUY) and point them to their equivalent.
27      - add diagnostics of wind-stress over seaice (SItaux,SItauy) and seaice
28        fraction weighted wind stress over ocean+seaice (SIatmTx,SIatmTy).
29    o pkg/diagnostics:
30      - small piece of code to rename (old) diagnostics, when namelist is processed.
31    o model/src:
32      - new run-time param (useMin4hFacEdges) to select method for setting hFacW,S:
33        originally, set as minimum of adjacent hFacC factor ; now (new default)
34        computed from rSurfW,S and rLowW,S by applying same rules as for hFacC.
35        Only matters when useShelfIce=T with particular ice-shelf cavity geometry.
36    o pkg/seaice:
37      - add momemtum advection, off by default, still in test phase
38        most of the momentum advection code is adapted and reused from mom_vecinv
39    o pkg/mom_vecinv:
40      - pass these runtime flags:
41        selectVortScheme, highOrderVorticity, upwindVorticity, useJamartMomAdv
42        as formal parameters to s/r mom_vi_u/v_coriolis, mom_vi_u/v_coriolis_c4,
43        so that these routines can also be used in pkg/seaice.
44    
45    checkpoint66g (2017/04/24)
46    o model/src:
47      - more robust ordering of column thickness integral (=Sum_k(drF*hFac) )
48        to get same expression (regarding machine truncation) in different places
49        in ini_masks_etc.F (e.g., rSurfC,W,S is now exactly zero when it should).
50        Update forward output of experiments: global_ocean.cs32x15 (all 5 except
51        viscA4), isomip (x3), tutorial_global_oce_in_p & tutorial_plume_on_slope.
52    o pkg/shelfice:
53      - ALLOW_SHIFWFLX_CONTROL: move setting of maskSHI from shelfice_update_masks.F
54        to shelfice_init_fixed.F
55      - change S/R SHELFICE_UPDATE_MASKS to SHELFICE_INIT_DEPTHS (still called from
56        ini_masks_etc.F for now) to update ocean upper boundary position according
57        to ice-shelf topography (instead of directly updating hFacC).
58    o model/src:
59      - move call to CTRL_INIT & CTRL_ADMTLM from the middle to the bottom of
60        packages_init_fixed.F to allow other pkgs to set mask and weight fields.
61    
62    checkpoint66f (2017/04/06)
63    o model/src:
64      - add specific run-time param to select level of printed plot-field-maps,
65        set by default to debugLevel. Remove internal param "printDomain".
66    o pkg/seaice:
67      - add flag to add snow mass to seaiceMassC/U/V, the default is
68        SEAICEaddSnowMass=.FALSE., not to change previous results
69    o pkg/bling
70      - Bug fix in bling_production regarding unit conversion for diagnostics
71        being put in the wrong place
72    o model/src:
73      - add back recomputation of rSurfW & S to ensure consistent column thickness
74        (needed for rStar) between Sum_k(hFac*drF) and rSurf-rLow, for now only
75        when using pkg/shelfice; was initially added on 2012/06/01 (ini_masks_etc.F
76        revision 1.51) but was removed accidentally on 2014/02/08 (v1.53).
77    o pkg/autodiff:
78      - clean-up "checkpoint.flow"
79    o pkg/rw (Contribution from Jody Klymak):
80        option to set mds file suffix as function of time in simulation:
81        *) new input parameter "rwSuffixType" (read from PARM03 namelist)
82           to select file suffix format; by default (=0), use iteration number;
83        *) add simple routine to return file suffix according to rwSuffixType;
84        *) in model/src and in most pkgs (except: atm2d, fizhi, regrid & streamice),
85           use new S/R to get file suffix, except for debug output file (diagFreq)
86           and pkgs offline & rbcs input files.
87    o pkg/rw:
88      - uniform processing of "I10" suffix across writing fld routines; used to
89        simplify debug writing of cg2/3d_b/x in solve_for_pressure.F & post_cg3d.F
90        (similar to cg3d.F, cg3d_ex0.F)
91    o pkg/mom_vecinv:
92      - highOrderVorticity in selectVortScheme=2 case: fix c4 coeff in splitted
93        vorticity flux (keep same sum in case vBarXm=vBaXp, uBarYm=uBarYp).
94    o pkg/bling:
95      - Many small changes intended to clean the code.
96        Unnecessary ADJOINT_SAFEs removed ;
97        removed BLING_COST.h BLING_CTRL.h bling_cost.F ;
98        diagnostics added.
99    
100    checkpoint66e (2017/03/14)
101    o pkg/exf:
102      - interpolation with #undef EXF_INTERP_USE_DYNALLOC: move buffer size
103        definition outside EXF_PARAM.h in new header file: EXF_INTERP_SIZE.h;
104        use fixed size buffer (passed to S/R EXF_INTERP & EXF_INTERP_UV) to
105        avoid any dynamic allocation ;
106      - S/R EXF_CHECK: add new check & stop when file-name is defined but not
107        read-in ; add warning when file is read-in but not used within pkg/exf ;
108        + check for buffer-size (if #undef EXF_INTERP_USE_DYNALLOC).
109      - update exf_summary.F (print {FLD}RepCycle).
110    o verification/global_with_exf:
111      - switch on exf interpolation in AD test (just like the forward test)
112    o pkg/mom_vecinv:
113      - add storage directives to avoid recomputations within mom_vecinv.F
114        which were generating seg. fault with gfortran -devel
115    o pkg/ctrl, pkg/smooth:
116      - initialize array halos which were generating seg. fault with
117        gfortran -devel in adjoint mode
118    o pkg/exf:
119      - for each input field, enable to specify a field specific repeat-cycle
120        ({FLD}RepCycle) which defaults to pkg/exf main "repeatPeriod".
121    o verification/lab_sea:
122      - update AD results of primary test and noseaicedyn test after switching
123        to new version of TAF (5.3.13 vs 5.3.2 before); agreement with gradient
124        check stays about the same.
125    o pkg/exf:
126      - fix bug in exf_zenithangle.F for cases select_ZenAlbedo > 0 with useCAL=T.
127      - exf_check: MAX_LAT_INC need only be "loc_nlat-1", not equal to loc_nlat
128    o pkg/bling, USE_EXFCO2 code:
129      - add parameter "apco2RepCycle" (set to pkg/exf "repeatPeriod" by default);
130      - update calls to EXF S/R (use new version: EXF_INIT_FLD & EXF_SET_FLD).
131    o pkg/exf:
132      - rename S/R EXF_INIT to EXF_INIT_VARIA ;
133      - add arguments: fldName (for debug msg) and fldRepeatCycle (set to
134        repeatPeriod) to S/R EXF_SET_UV and to S/R EXF_SET_GEN (renamed EXF_SET_FLD)
135        and update calls in pkg/exf calling S/R (exf_getffields.F & exf_getclim.F) ;
136      - add argument: fldName (for debug msg) to S/R EXF_INIT_GEN (renamed
137        EXF_INIT_FLD) and update calls in exf_init_varia.F
138      - For now, for backward compatibility, keep a simplified version of S/Rs
139        EXF_SET_GEN & EXF_INIT_GEN in file exf_set_gen.F
140      - add and pass new arguments: fldName (for debug msg) and fldRepeatCycle
141        to S/R EXF_GetFFieldRec ; update calls in pkg/obcs/obcs_exf_load.F
142    o tools/genmake2:
143      - replace "bc -l" (only used once) by "expr" (already used).
144    o verification/global_ocean.cs32x15:
145      - turn off pkg/cal (useCAL=F) in secondary FWD exp. "icedyn".
146        Note: exf setting (data.exf) can be compared to other exf secondary exp
147        "seaice" (kept with useCAL=T) which has same time dependent forcing.
148    
149    checkpoint66d (2017/02/13)
150    o pkg/exf:
151      - remove setting of useCAL=T when using pkg/exf (useEXF=T); add warning
152        early on (in packages_boot.F) to stress this change in pkg setting.
153      - In (most) verification exp. that use pkg/exf, add useCAL=.TRUE. to data.pkg
154    o model/src:
155      - move call to ecco_phys to end of time step; this may induce minor
156        cost function changes by shifting time averages by one time step
157        for some variables; this revision resulted in changed adjoint results
158        in MITgcm_contrib/verification_other/global_oce_cs32
159    o pkg/exf:
160      - Change EXF_READ_EVAP to only activate code within #ifdef ALLOW_ATM_TEMP ;
161        this prevents to read evap when ALLOW_ATM_TEMP is undef and other fields,
162        e.g. precip, are not available.
163    o pkg/flt:
164      - flt_init_varia.F: use pickupSuff if specified
165      - add code (within #ifdef DEVEL_FLT_EXCH2) and test case as a first,
166        intermediate, step towards completing pkg/exch2 support within pkg/flt;
167        ifdef DEVEL_FLT_EXCH2 then:
168        - flt_init_fixed.F: comment out stop
169        - flt_exch2.F: conserve ipart, jpart (grid coordinates)
170        - exch2_recv_get_vec.F: transform ipart, jpart (grid coordinates)
171        - flt_mapping.F: attempt to fix longitude diagnostic near date-line
172        - flt_init_varia.F: hack initialization (for testing purposes w. LLC90)
173    o tools/genmake2 & pkg/pkg_depend:
174      - define new type of pkg dependency rule ("=pkg_x"), less strict than
175        the "+" rule, that add the dependent pkg (pkg_x) unless it's disabled
176        (-pkg_x in packages.conf).
177      - change pkg/exf dependency rule from "exf +cal" to "exf =cal";
178      - add "+cal" to dependency list of pkg/ecco (needed to compile).
179      - simplify FWD experiment "offline_exf_seaice" by removing pkg/cal.
180    o utils/matlab:
181      - adding ocean_basin routines for defining basin masks.
182    o pkg/exf:
183      - new S/R EXF_GETFFIELD_START replacing EXF_GETFIELD_START, but with more
184        arguments, allowing to check (and stop) if parameter setting of
185         {FLD}startdate1 & date2 and of {FLD}StartTime are consistent with
186        useCAL= T or F. For now, kept a simplified version of EXF_GETFIELD_START
187        for backward compatibility.
188      - change accordingly calls in exf_init_fixed.F + default {FLD}StartTime in
189        exf_readparms.F ; apply same changes to pkg/icefront (for SGRunOff field).
190    o pkg/bling (USE_EXFCO2 code):
191      - fix missing setting of apco2StartTime according to apco2startdate1 & date2
192        by adding a call to S/R EXF_GETFFIELD_START.
193    o pkg/exf:
194      - allows to compile without pkg/cal (but disabled by current dependency
195        rules, i.e., default "pkg/pkg_depend"). Minimal changes to enable to
196        run with useCAL=F ; this involves setting directly {FLD}StartTime instead
197        of {FLD}startdate1 & date2 ; consistency check not yet coded.
198    o verification/global_ocean.cs32x15:
199      - fix all data.exf for a shift of 1 day in all field startdate1 so that it now
200        corresponds to middle of 1rst month; update outputs (2 fwd + 3 adm + 3 tlm).
201    o pkg/exf:
202      - allow to use EXF_ZENITHANGLE without pkg/cal + simplify (saving some
203        calculations); change FWD experiment global_ocean.cs32x15
204        (#define ALLOW_ZENITHANGLE) to test/check that this code compiles.
205    o pkg/exf:
206      - In preparation for addition to NAMELIST, rename internal (_RL) parameter
207         {FIELD}startdate to {FIELD}StartTime
208        Note: new name also fit better the content, i.e, a start time in second.
209    o eesupp/src:
210      - add 1 argument to S/R EEBOOT & EEBOOT_MINIMAL for interface with ESMF
211    o pkg/exf:
212      - add option ALLOW_READ_TURBFLUXES (and corresponding set of parameters)
213        to allow to read-in Sensible & Latent Heat flux ;
214      - simplify pkg/exf main options:
215        1) move small piece of code (case ALLOW_ATM_TEMP undef) out of
216           exf_bulkformulae.F into exf_wind.F so that exf_bulkformulae.F is
217           compiled only when both ALLOW_ATM_TEMP & ALLOW_BULKFORMULAE are defined;
218        2) make call to EXF_RADIATION and to EXF_WIND independent of CPP option
219           ALLOW_BULKFORMULAE which now only applies to S/R EXF_BULKFORMULAE ;
220        3) improve options documentation in EXF_OPTIONS.h.
221    o pkg/ecco:
222      - cost_gencost_customize.F,ecco.h,ecco_phys.F,ecco_readparms.F, and
223        ecco_summary.F: add passive tracer cost functions to gencost;
224        m_ptracer and m_boxmean_ptracer
225    o pkg/ctrl:
226      - ctrl_map_forcing.F: pass myIter and myTime to ctrl_map_forcing as input
227        parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing; add to list
228        of implemented gentim2d contol parameters: xx_qnet, xx_empmr, xx_qsw,
229        xx_sst, xx_sss, xx_pload, xx_saltflux, xx_fu, xx_fv, xx_fe, xx_fn
230    o model/src:
231      - forward_step.F: pass myIter and myTime to ctrl_map_forcing as input
232        parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing
233    o pkg/exf:
234      - exf_getffields.F: add to list of implemented gentim2d contol parameters:
235        xx_lwflux, xx_swflux, xx_evap, xx_apressure, xx_areamask
236    
237    checkpoint66c (2017/01/19)
238    o verification:
239      - add new option "-src" to testreport to only produce source code (*.f),
240        including taf output src code (if using '-adm'/'-tlm' option).
241    o pkg/exf:
242      - add saltflx :: Net upward salt flux in psu.kg/m^2/s
243    o pkg/diagnostics:
244      - add run-time variable diagMdsDir to specify a subdirectory for
245        diagnostic output when mds is being used and mdsioLocalDir is not.
246    o pkg/mnc:
247      - mnc_utils.F: edit stop message
248    o pkg/autodiff:
249      - autodiff_ini_model_io.F: PRINT_MESSAGE, clean-up comments, add _*_MASTER,
250        add HAVE_SYSTEM bracket around system call to mkdir
251    o pkg/profiles:
252      - profiles_findunit.F, profiles_init_fixed.F, profiles_interp.F,
253        profiles_readparms.F: call ALL_PROC_DIE before 'stop'
254      - profiles_ini_io.F: use PRINT_MESSAGE, clean-up comments, add _*_MASTER,
255        add HAVE_SYSTEM bracket around system call to mkdir
256    o pkg/smooth:
257      - smooth_filtervar2d.F, smooth_filtervar3d.F: call ALL_PROC_DIE before 'stop'
258      - smooth_init2d.F, smooth_init3d.F: move print statements to readparms
259      - smooth_readparms.F: add cleaner print statements from smooth_init?d.F
260    o pkg/exf:
261      - check: count errors and stop cleanly at the end (call to ALL_PROC_DIE);
262        issue error message when climsst_interpMethod.GT.0 and climsst_lon_inc > 500
263        generalize tests on interpMethod, nlat, and lon_inc to all exf variables.
264      - summary: skip detailed field report if not used (empty file-name).
265    o tools/xmakedepend:
266      - In case line editor "ed" is missing, switch to "sed" command to clean-up
267        Makefile from previous dependencies (anything after "# DO NOT DELETE" line).
268    o pkg/exf:
269      - change definition of "hflux" input file to always include Short-Wave;
270        this is now consistent with hflux computation (if using bulk-formulae)
271        and hflux diagnostic & documentation (in EXF_FIELDS.h).
272    
273    checkpoint66b (2016/12/01)
274    o model & momentum pkgs:
275      - implement fully implicit bottom friction combined with implicit surf.
276        pressure, for now, only in hydrostic formulation:
277        + to use: compile with #define ALLOW_SOLVE4_PS_AND_DRAG in CPP_OPTIONS.h
278          and run with selectImplicitDrag=2 ;
279        + currently missing diagnostics of bottom drag and vert. viscosity tendency;
280      - partial implicit time-stepping (bot. friction + vert. visc first, then
281        surf. press) corresponding to selectImplicitDrag=1 should be applicable
282        to NH formulation but not available until we solve for surf. pressure
283        increment (instead of full etaN).
284      - change exp. global_ocean.cs32x15.thsice to test implicit bottom drag
285        with implicit vertical viscosity.
286    o pkg/seaice: add linear remapping scheme (Lipscomb 2001) to ITD model
287      - this is a first version that includes many regularisations that may
288        not all be necessary, to be sorted out,
289      - turned on by runtime parameter SEAICEuseLinRemapITD (true by default)
290      - change one verification experiment in seaice_itd to use and test new code
291      - seaice_growth: catch a case where the argument of log can be zero
292        or smaller (important for code stability)
293    o model/src:
294      - modify SOLVE_DIAGONAL_LOWMEMORY version of solve_tridiagonal.F
295        & solve_pentadiagonal.F to enable to re-used inverse matrix for solving
296        similar A.X'=Y' system (with same matrix A) in subsequent calls;
297        switch based on errCode (In/Out) argument value; in calling routines,
298        initialise errCode before first call.
299    
300    checkpoint66a (2016/10/18)
301    o pkg/bling:
302      - BLING package now loads in atmospheric pCO2 file using exf package routines
303        Enable with #define USE_EXFCO2 in BLING_OPTIONS.h
304    o model/src & pkg/ptracers:
305      - with INCLUDE_IMPLVERTADV_CODE defined, also call MOM_U,V_IMPLICIT_R &
306        GAD_IMPLICIT_R (instead of IMPLDIFF) when just implicitViscosity and
307        implicitDiffusion (respectively) are used (even without momImplVertAdv
308        or temp,salt,PTRACERS_ImplVertAdv).
309    o model/src & generic_advdiff:
310      - add parenthesis in main diagonal calculation of implicit vertical
311        diffusion matrix (impldiff.F & gad_implicit_r.F).
312        This affects results at machine truncation level; update output of many
313        verification experiments (31 fwd ; 10 adm ; 8 tlm ; 3 oad).
314    o pkg/mom_commom & generic_advdiff:
315      - add deep atmosphere and anelastic scaling factor in implicit vertical
316        advection routines (mom_u,v_implicit_r.F & gad*_impl*_r.F).
317    o model/src:
318      - remove few unnecessary temp array copies in solve_tridiagonal.F
319        & solve_pentadiagonal.F
320    
321    checkpoint65z (2016/09/28)
322    o pkg/seaice: fix multithreading for seaice_fgmres.F
323      - remove unecessary variables from common blocks
324      - use extra dimension MAX_NO_THREADS for all variables of the Krylov space
325        basis, that are stored in commom blocks (including integer variable i1)
326      - clean up code a little by removing commented lines that refer to
327        original code
328      - turn on multi-threaded test for experiment offline_exf_seaice.dyn_jfnk.
329    o MITgcm manual:
330      - add uptodate pkg/ecco documentation to the manual (section 8.1; ecco.tex),
331        preliminary documentation for generic controls (8.3; ctrl.tex),
332        a placeholder for smooth (8.4; smooth.tex), and comment out the deprecated
333        ecco_costfunction.tex
334    o pkg/ecco:
335      - update and cleanup list of CCP options
336      - re-assign gencost_mask to specify masks rather than gencost_errfile; 'c'
337        is now always passed to cost_generic; gencost_mask is now MAX_LEN_FNAM
338      - add checks that retired run-time options are not used, and in relation
339        to gencost_mask and gencost_errfile
340      - finish deprecating gencost_scalefile, gencost_smooth2Ddiffnbt, and
341        gencost_nrecperiod
342      - fix m_eta computation for virtual salt flux case
343      - add m_horflux_vol case (selected via gencost_barfile) that computes
344        transports via cost_gencost_boxmean (gencost_flag=-3)
345      - use gencost_flag more systematically (i.e., avoid using gencost_name)
346        for code switches (aside from physical variable selection)
347    o pkg/seaice: make seaice_fgmres.F fit for multithreading; this first
348      attempt appears to be a bit of a hack and my need some repair down the road
349    o pkg/exf:
350      - interpolation near South Pole: fix criteria on input field latitude.
351    o pkg/icefront & pkg/exf:
352      - move setting of icefront Sub-Glacial RunOff forcing (currently unused)
353        from pkg/exf (read from data.exf) to pkg/icefront (read from data.icefront)
354    o pkg/exf:
355      - replace CPP option ALLOW_EXF_OUTPUT_INTERP with run-time parameter
356        "exf_output_interp" (in namelist: EXF_NML_04); change output file name
357        (add suffix "_out" instead of a prefix); keep same record number as in
358        input file but always write record 1 first (to avoid a STOP in I/O S/R).
359        Change output file content by writing interpolated field before applying
360        land-sea mask (helpful for debug).
361      - 2 compon. vector interpolation with rotation: apply scaling factor on
362        each compon. (Eastward and Northward) just before rotation.
363    o pkg/bling:
364      - Cleaned package. Removed not needed code and comments.
365      - adjoint example now works
366        (MITgcm_contrib/verification_other/global_oce_biogeo_bling/code_ad)
367    o pkg/ptracers:
368      - add Bruno Deremble's code to complete the linear surface correction
369        for tracer conservation;
370      - enabled for individual ptracers by PTRACERS_linFSConserve(iTr)=.TRUE.
371    
372    checkpoint65y (2016/07/29)
373    o pkg/debug (stats):
374      - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
375        proc/thread mapping);
376      - fix Min & Max for case where 1 thread has only empty tiles;
377      - use RL variable to count number of wet grid points (with big domain,
378        can be too large to fit into integer*4).
379    o pkg/monitor:
380      - use RL variable to count number of wet grid points (but used only for del2)
381      - add new routine to compute Advective CFL within tracer time-stepping with
382        writing delayed until next monitor output.
383    o pkg/obcs:
384      - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
385    o pkg/cal:
386      - calandar-dump: treat case myTime < timePhase in the same way as in
387        eesupp/src/diff_phase_multiple.F (when not using calandar-dump).
388    o pkg/dic & seaice:
389      - fix compilation of ocean component for coupled atm+ocn model with
390        seaice dynamics & dic.
391    
392    checkpoint65x (2016/06/11)
393    o add a license text file in main MITgcm tree.
394    o added pkg/bling:
395      - intermediate complexity biogeochemical model
396      - see bling_description.txt for details
397      - verification experiment is global_oce_biogeo_bling (for now, in
398        Contrib/verification_other/); tested daily on baudelaire with gfortran.
399      - add entry point in pkg/gchem for new pkg "bling".
400    o pkg/seaice: fix tensile stength computation
401      - replace global field tensileStrength by tensileStrFac
402      - tensileStrFac can be computed once in S/R seaice_init_varia
403      - fortunately that does not affect any verification results
404    
405    checkpoint65w (2016/05/12)
406    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
407         with ECCO_CTRL_DEPRECATED defined
408    o verification/global_ocean.cs32x15:
409      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
410        with "selectNHfreeSurf=1".
411    o model/src (non-hydrostatic free-surface):
412      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
413        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
414      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
415        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
416        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
417        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
418      - Update output (changes at machine truncation level) of verification exp:
419        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
420        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
421    o pkg/seaice: ITD code
422      - fix picking up from a single category model by initialising
423        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
424      - split a long warning message in seaice_check_pickup.F into two lines,
425        because NEC SX-ACE cannot deal with the long line.
426    o model/src:
427      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
428    o pkg/seaice:
429      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
430    o pkg/seaice:
431      - add basal stress as parameterisation for grounding ice
432        following Lemieux et al. (2015)
433      - turn on by setting new parameter SEAICEbasalDragK2 to a value
434        larger than 0. Lemieux et al. (2015) recommend 15.
435      - The adjoint complains with extra recomputations so there is also a
436        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
437        order to postpone the problem
438      - compile the new code in lab_sea
439    o verification/halfpipe_streamice:
440      - update both TAF and OpenAD adm output (machine truncation differences)
441    
442    checkpoint65v (2016/04/08)
443    o verification/advect_xz:
444      - increase overlap size from 3 to 4 and add new secondary test for PQM
445        advection scheme (with mono & wino limiter).
446      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
447    o model/src:
448      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
449        added phi0Ref) to set vertical axis origin and phiRef origin;
450        keep Ro_SeaLevel for backward compatibility (with a warning).
451       According to coordinate and fluid type:
452        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
453        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
454        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
455        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
456      - remove Ro_SeaLevel from ATM experiment parameter files;
457      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
458        complement; update output.txt (changes at machine truncation level).
459    o pkg/seaice/seaice_evp.F
460      - simplify computation of deltaZ and zetaZ to simple averaging following
461        Bouillon et al. (2013). This removes a lot of code, but also changes
462        verification experiment lab_sea.hb87 -> updated
463    
464    checkpoint65u (2016/03/14)
465    o pkg/generic_advdiff:
466      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
467        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
468        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
469        testing and not for actual use.
470    o model/src:
471      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
472        origin r = rF(1);
473      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
474        in EOS for height coordinate: enable to include NH Pressure or to use
475        more accurate pressure vertical profile; options not linked to EOS type
476        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
477      - start to implement variable gravity (along vertical): for now, only with
478        z-coords (not even z*).
479      - add Ideal Gas equation of state for height coordinate.
480      - update OpenAD output (affected at machine truncation level) of exp:
481        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
482    o pkg/exf:
483      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
484        of exf interpolation (before any rescaling, rotation or interpolation
485        to velocity point) for each field that gets loaded from file. This option
486        identically mimics the input file organization (e.g. record numbers in year
487        by year input files) besides the change in horizontal grid.
488      - add rotateStressOnAgrid run-time switch so that wind stress fields
489        can be provided on the A-grid in zonal/meridional direction and
490        rotated on the fly. This only applies to the case when the exf
491        interpolation is off and rotateStressOnAgrid is false by default.
492    o model/src:
493      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
494        it's also used with pkg/atm_phys) and add few more parameters (but still
495        inactive, src code yet to come)
496    
497    checkpoint65t (2016/02/10)
498    o pkg/atm_phys:
499      - from Ruth Geen: add optical depth dependence on CO2 concentration.
500    o model/src:
501      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
502        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
503        Update output of exp. deep_anelastic (changes at truncation level).
504    o tools:
505      - add a hack in "remove_comments_sed" (used only with TAF) for recent
506        version of OpenMPI (shipped with FC.23): comment out the new header
507        file "mpif-sizeof.h" which causes problems to TAF.
508    o pkg/seaice:
509      - change the termination criterion so that maxits (SEAICElinearIterMax)
510        has an effect
511      - unify iteration parameters for implicit solvers (JFNK and Picard)
512        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
513        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
514        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
515        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
516        SEAICEnonLinTol     replaces JFNKgamma_nonlin
517      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
518      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
519        use with SEAICEuseKrylov
520    o pkg/seaice/seaice_lsr.F
521        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
522        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
523        an effect.
524    o pkg/seaice: add two new parameters
525      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
526        parameter is not in any namelist)
527      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
528        a preconditioner for the non-linear Newton iteration of the JFNK
529        solver
530    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
531      affects some experiments at truncation level:
532      - global_ocean.cs32x15.icedyn (11 digits),
533      - global_ocean.cs32x15.seaice (11 digits),
534      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
535      - also update global_ocean.cs32x15 adjoint and tangent-linear results
536    o pkg/salt_plume & pkg/thsice:
537      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
538        connect salt_plume flux to ATM-OCN coupling pkgs interface:
539       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
540         export to coupler interface) even without compiling pkg/salt_plume ;
541       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
542         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
543    o pkg/dic:
544      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
545        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
546        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
547      - move also update with values from ATM-OCN Coupler in the same new S/R
548        (previously done in ocn_apply_import.F).
549    o tools/adjoint_options:
550      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
551        has been changed on Jan 14, 2016.
552    o pkg/ggl90:
553      - add alternative discretisation of vertical shear (off by default), to
554        compute the mean (@ grid-cell center) of vertical shear compon instead of
555        vertical shear of mean flow (@ grid-cell center).
556      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
557        results on adjacent faces of cubed-sphere grids; this fix the restart.
558    o pkg/atm_compon_interf:
559      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
560        pass last value, stored directly before export to CPL ;
561        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
562      - remove atmSLPr from pickup files (no longer needed for restart)
563    
564    checkpoint65s (2016/01/13)
565    o eesupp & genmake2:
566       - first check for Function ETIME and, if it fails, then check for subroutine
567         ETIME and consistent output; use the appropriate version in timers.F
568    o model/src:
569      - to check restart test, add option to apply EXCH to U,V earlier, just before
570        integr_continuity; turned off by default.
571    o pkg/dic:
572      - remove CPP option USE_ATMOSCO2 (not needed)
573    o tools/tst_2+2:
574      - try to ignore difference between +0 and -0 in binary file, causing test
575        to fail for no good reason.
576    o eesupp & genmake2:
577      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
578        but also check (in genmake2) that test runs and returns meaningful results.
579    o coupler pkgs:
580      Finish implementation of optionally-exchanged variable switches (started on
581       Nov 12) with addition of few more exchanged fields, including 2-way exchange
582       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
583       advection in OCN component; this requires sequential coupling.
584      coupler (pkg/atm_ocn_coupler):
585      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
586        routines (useful for debug).
587      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
588         flux, DIC fields) if corresponding switch is ON.
589      - add option to export RunOff to OCN (to use for DIC river input)
590      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
591      components (pkg/atm_ & ocn_compon_interf):
592      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
593        optionally exchanged fields; add a check & stop in cpl_readparms.F.
594        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
595        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
596      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
597        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
598      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
599      - hold in common block coupler optionally-exchanged variable switch
600        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
601      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
602        this is intended to replace the OCN cplFldtave.* output files (not updated
603        to contain new additional exchanged fields).
604    o pkg/dic:
605      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
606    o pkg/thsice:
607      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
608        and writing of thsice pickup files.
609    o pkg/atm_compon_interf:
610      - move all field individual export-call out of cpl_export_import_data.F
611        into new S/R ATM_EXPORT_FIELDS
612    o pkg/atm_compon_interf:
613      - store state variables (for now, only thSIce fields) just before beeing
614        exported (in cpl_export_import_data.F, like on ocean side) instead of from
615        atm_store_my_data.F like all exported fluxes.
616      - new version of pickup_cpl: write field names into meta file and read meta
617        file to find field postion in pickup. Also only write/read fields meeded for
618        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
619    o pkg/dic:
620      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
621    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
622        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
623        value can be from domain [0,1] to average between the two methods
624    o pkg/atm_phys:
625      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
626        hold fixed in time).
627    
628    checkpoint65r (2015/12/21)
629    o pkg/seaice:
630        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
631        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
632    o pkg/seaice:
633      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
634        when SEAICEscaleSurfStress=.TRUE.,
635      - apply areaW and areaS in S/R seaice_calc_lhs
636    o pkg/atm_phys:
637      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
638        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
639        for individual contribution (convection, LSC cond, radiation)
640      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
641        information); activated with: solar_exponent=0. and wv_exponent=-1.
642    o pkg/ggl90:
643      - within IDEMIX add upper limit for horizontal group velocity to
644        avoid instability problems in the explicit horizontal diffusion term for
645        long time steps or high resolution
646    o pkg/diagnostics:
647      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
648        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
649    o testreport:
650      - remove "-v" (verbose option) in default mpirun command.
651    o pkg/seaice/seaice_growth:
652      - catch potential division by zero in ITD code, does not change
653        verification results
654    o pkg/ecco:
655      - retire old codes to the Attic. The calls to retired functions are
656        left in a commented form in case they ever need to be re-activated.
657      - ecco_check.F: issue warning if any old CPP option is
658        defined that corresponds to retired codes -- then stop.
659    o pkg/atm_compon_interf:
660      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
661        coupler: use last time-step value instead of average over cplSendFrq_iter
662        time-step, similar to what is done for seaIceMass.
663        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
664    o eesupp & genmake2:
665      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
666        <= remove until a fix is found for some ifort version on ia32 machine.
667    o pkg/seaice/seaice_evp:
668      - refine residual computation
669    
670    checkpoint65q (2015/11/18)
671    o pkg/seaice/seaice_evp:
672      - fix residual computations so that they no longer affect the actual
673        simulation code
674      - fix seaice_readparams to be able to actually set new parameters
675        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
676    o model/src:
677      - fix wrong truncation (single prec) from "FLOAT" function in expressions
678        like: deltaT*FLOAT(myIter) when myIter is large:
679         a) replaced by DFLOAT (if not seen by TAF);
680         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
681    o pkg/aim_v23:
682      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
683        when pickupSuff is set ; do write rolling pickups + at the end of the run.
684    o pkg/atm_ocn_coupler + ocn_compon_interf:
685      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
686        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
687        add corresponding call in DO_OCEANIC_PHYS.
688    o coupler pkgs:
689      Start a new way to set-up optionally-exchanged variables (previously, only
690       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
691       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
692       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
693       compononent param default can be set accordingly).
694      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
695       but rather applies to a group a fields (going both ways like for DIC)
696       and corresponds to an option of coupling config.
697      coupler (pkg/atm_ocn_coupler):
698      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
699        and read namelist directly (without eessup S/R calls) instead of
700        in the very un-flexible old way, 1 param per line, in fixed order;
701      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
702        cleanly in CPL_CHECK_CPLCONFIG
703      - add new coupling-exchange selectors (some not yet active) including
704        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
705                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
706      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
707        component ; called directly from coupler.F, after comp. registrations;
708      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
709         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
710          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
711      components (pkg/atm_ & ocn_compon_interf):
712      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
713        CPP header file in all pkg source files.
714      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
715        ATM/OCN_CHECK_CPLCONFIG;
716      - add error-counter to track errors (e.g., in "data.cpl") and to stop
717        cleanly in ATM/OCN_CHECK_CPLCONFIG;
718      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
719        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
720        before PACKAGES_READPARMS;
721      verification/cpl_aim+ocn/:
722      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
723        "data.cpl" for coupler (in input_cpl).
724    o eesupp/inc:
725      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
726        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
727        to always cumulate tile local-sum in the same order (still uses
728        MPI_Allreduce like standard code).
729      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
730        that are now identical to standard version (in eesupp/inc).
731    o pkg/shelfice:
732      - add SHELFICETransCoeffTFile for initializing spatially varying
733        heat and salt transfer coefficients
734    o pkg/atm_compon_interf & ocn_compon_interf:
735      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
736        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
737      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
738    o pkg/atm_ocn_coupler:
739      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
740    o pkg/rbcs:
741      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
742        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
743      - add a short report (to STDOUT) about RBCS-mask settings.
744    
745    checkpoint65p (2015/10/23)
746    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
747        there is no adjoint test for EVP, we don't know what it does to the adjoint
748        solution, but at least there are no more recomputation warnings left
749    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
750        a chance of giving the same results as a fully converged VP (JFNK) solver
751    o tools/adjoint_options/adjoint_diva:
752      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
753    o pkg/streamice:
754      - spotted bug in streamice_driving_stress using dyG where should have been dxG
755    o pkg/exf:
756      - remove STOP statement that prevented to use wind or (wind-)stress
757        interpolation for constant-in-time forcing fields (wind/stress period = 0).
758    o pkg/seaice:
759      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
760        5 additionals 2D fields and 6 new store directives
761      - change logic in seaice_readparms.F: EVP code can now be turned on in
762        various ways, setting SEAICE_deltaTev is no longer required,
763        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
764        or SEAICEaEVPcoeff
765    o pkg/shelfice/shelfice_thermodynamics.F
766      - redefining uLoc/vLoc to u/v, instead of 2u/v
767    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
768      - this is an intermediate state of a truely converging EVP that has
769        the potential of outperforming implicit VP methods, I do not recommend
770        using it yet.
771      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
772        and all parameters are hardwired
773      - for convergence it still requires very smooth regularisations, that means,
774        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
775        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
776        specific averaging appears to be required, still subject to tuning
777      - still needs cleaning and I need to turn parameter into runtime parameters
778      - add code to compute and print residuals of iteration, compile with
779        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
780    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
781      that entered with r1.54 on Sep04, 2015, -> update results
782    
783    checkpoint65o (2015/09/14)
784    o pkg/mom_vecinv & mom_common:
785      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
786        called from there.
787      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
788        allows to use Vector-Invariant form in deep atmos and anelastic formulation
789    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
790      and Koenig-Beatty+Holland (2012)
791      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
792      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
793      - requires an extra input argument for S/R seaice_calc_viscosities
794      - tensileStrength's depth dependence is different from Itkin et al. (2015)
795        (to be changed and played with, for now exponential)
796    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
797      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
798        by AREA according to Connelly et al. (2004), JPO.
799      - For EVP and the LSR solver, the implicit part of the drag term is
800        the only non-zero term in the denominator when there is no ice (which
801        prevented running the model with zero ice-ocean drag). If
802        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
803        (or zero main diagonals BU/BV) which need to be caught. A practical
804        consequence is that for open water, the momentum equation reduce
805        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
806        they happen to be zero, often leading to a non-zero solution over
807        open water.
808    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
809        efficient EVP method.
810      - introduce area-weighted averages for e12 (analogously to
811        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
812        remain, but also changing the order of terms in the previous average
813        changed the results as much) -> update experiment
814      - add SEAICE_DELTA_SMOOTHREG code
815      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
816        TEM-code
817      - adjust loop bounds so that only required fields are computed
818      - add new averaging code for zetaZ/deltaZ (again similar to
819        seaice_calc_viscosities.F), inactive by default for now (will change
820        results again), but will replace old code eventually
821    o eesupp/src:
822      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
823        to always cumulate tile local-sum in the same order
824        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
825        Still uses MPI_Allreduce (like standard code) but on array of tiles
826        and should be faster than GLOBAL_SUM_SEND_RECV code.
827      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
828        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
829      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
830         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
831         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
832         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
833         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
834    
835    checkpoint65n (2015/07/29)
836    o pkg/thsice:
837      - add a warning when used with pkg/aim but without updating SST
838        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
839    o pkg/offline:
840      - change where Offline-Fields are loaded, from load_fields_driver.F to
841        directly within FORWARD_STEP, just after updating iter number and time;
842      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
843        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
844       These changes allow:
845        a) to recover exactly on-line results using deltaToffline=deltaTClock,
846        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
847        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
848        time-step, both with GM & KPP files and with recomputing these fields;
849        b) no needs to switch on staggerTimeStep anymore;
850        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
851      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
852    o pkg/offline:
853      - change (rarely used) offset-iteration parameter to an offset time (in s):
854        can easily recover previous offset-iter effect by setting offset-time
855        (offlineTimeOffset) to offset-iter x deltaToffline;
856      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
857        in KPP as part of surface buoyancy forcing) in offline run.
858      - fix ptracers KPP non-local term in the case where KPP is re-computed.
859    o OpenAD
860      - Adding preliminary ggl90 test to OpenAD verification.
861        Config. with ggl90 currently diverges after 64 time steps
862        so will need more work to become more stable
863      - Adding preliminary kpp test to OpenAD verification.
864        required small tweakes in kpp_routines.F
865      - Merge and update from Krishna Narayanan's contrib area:
866        * Add one variable for preliminary OpenAD DIVA
867        * Add replacement time-stepping for OpenAD DIVA
868        * genmake2 flag -diva (but only for OpenAD; preliminary)
869        * required modifs for OAD_support
870        successful preliminary test for tutorial_global_oce_biogeo/
871    o pkg/seaice:
872      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
873      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
874        delta with a smooth function in s/r seaice_calc_viscosity
875        (no effect on EVP)
876      - rename local suffix "sqr" into "sq" for more consistent variable names
877    o pkg/seaice:
878        add new parameter SEAICE_deltaMin that is used ***only***
879        for regularizing Delta (and nothing else, like the parameter
880        which is also used for all sorts of things SEAICE_EPS).
881        Defaults to SEAICE_EPS for backward compatibility only.
882    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
883        the wrong key by inialising it before use -> fixes a recomputation
884        problem but does not fix the gradient
885    o pkg/layers:
886      - move resetting of flux arrays to outside the iLa loop
887        (this caused layers_diapycnal to not work with more than one layer coord.)
888      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
889    o pkg/layers:
890      - remove from common block 3D layers fields (used to diagnose transport
891        in tracer coords) and declare them as local arrays in layers_calc.F
892    o pkg/seaice:
893      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
894        in lab_sea forward experiment (changes results -> updated)
895      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
896    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
897       computations; for SEAICE_VECTORIZE_LSR
898      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
899        sweep to the outside,
900      - remove store directives and add "CADJ loop sequential" directives
901        in analogy to model/src/solve_tridiagonal.F
902      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
903        boundaries to yield more readable code. This has also the charming side
904        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
905        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
906        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
907        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
908        an additional option)
909       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
910       but the adjoint gradients (which are affected by this change) still explode.
911    o coupler (atm & ocn _compon_interf):
912      - avoid using Exch2 IO mapping if not suitable.
913    
914    checkpoint65m (2015/06/15)
915    o pkg/layers:
916      - clean-up old parameters setting (from Sep 2012):
917        + remove old parameters setting from common block (declared locally);
918        + stop if any old parameter is mixed with new parameters;
919        + check for valid or consistent parameter setting (e.g., layers_name)
920      - check that layers_bounds for Pot.Density are in the right range;
921        this is supposed to catch un-updated setting after recently shifting
922        potential density field "prho" by -1000 (now in "sigma" scale).
923    o pkg/layers:
924      - Added missing call to layers_fill for keeping track of tottend in
925        pkg/diagnostics/diagnostics_fill_state.F
926    o pkg/layers:
927      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
928        of diapycnal fluxes
929    o pkg/layers:
930      - reverted changes to interpolation to previous treatment; there
931        was never actually a problem
932    o pkg/layers:
933      - fix interpolation of layers tracers in the presence of partial cells
934      - add lots of new functionality to compute water mass transformation
935        (enabled by CPP flag LAYERS_THERMODYNAMICS)
936      - add new calls from main code (diags_oceanic_surf_flux.F,
937        thermodynamics.F, impldiff.F) and gad to save the necessary fields
938        for layers_thermodynamics calculations
939    o pkg/ptracers:
940      - add capability of stepping a passive tracer forward without advection
941        by setting PTRACERS_advScheme to 0.
942    o pkg/diagnostics:
943      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
944    o pkg/layers:
945      - shift potential density field "prho" by -1000 for density layer averaging so
946        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
947        Note that density bin boundaries (layers_bounds in data.layers) have
948        to be set accordingly (i.e., shifted, in sigma scale).
949    o pkg/layers:
950      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
951      - fix calculation of layer non-weighted velocity and layer probability
952      - add diagnostics for pot.density used for layer averaging
953    o pkg/seaice:
954      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
955        positiveness, modify a few comments and improve variable names,
956      - the changed computation of deltaC affects most seaice-related
957        experiments at the truncation level.
958        seaice_itd.thermo is affected by far the most, with
959        only 7 digits of agreement remaining; update experiments.
960    
961    checkpoint65l (2015/05/04)
962    o pkg/shelfice:
963      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
964        factor drKp1 to zero where it is negative (ie. do not use
965        SHELFICEBoundaryLayer if hFacC>1)
966      - the same for factor drLoc in shelfice_forcing.F
967    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
968        with modules in ptracers, when using testreport option "-small_f"
969    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
970      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
971    o verification/testreport
972      - add new option -small_f
973        with this option testreport first makes the target small_f (*.f files)
974        before running make (all). This is useful for explicit inlining when
975        all sources need to be full available.
976    o pkg/exf/exf_interp.F:
977        remove previous changes related to reverse (decreasing) input grids latitude
978    
979    checkpoint65k (2015/04/01)
980    o pkg/ecco:
981        fix missing cosphi initialization; use eccoiter in place of optimcycle;
982        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
983        instead of active read/write
984    o pkg/ctrl:
985        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
986        instead of active read/write.
987    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
988        return if .NOT.useAUTODIFF
989    o pkg/seaice: add CPP brackets (cost function related).
990    o model/src:
991        add useAUTODIFF run time switch.
992    o pkg/exf/exf_interp.F:
993        add code to allow input grids with latitude starting in the north (i.e. when
994        j=1 corresponds to northern edge of field); modify global_with_exf to test
995        this feature.
996    o verification/testreport:
997      - replace "grep -A3" with POSIX conformal sed command, because there are
998        implementations of grep that cannot do contextual searches
999      - replace "cat -n" by "nl" (two occurrences), because not all implementations
1000        of "cat" have the option "-n"
1001    o model/src:
1002        add new file gsw_teos10.F that contains 3 functions, more or less a copy
1003        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
1004        convert from conservative to potential temperature. For now they are not
1005        called anywhere.
1006    o pkg/ggl90: make "useIDEMIX" useful
1007      - re-organize code in s/r ggl90_calc a little to move computations that
1008        are different for idemix into separate loops (changes verification
1009        experiment idemix at truncation level, 12 digits remain -> updated)
1010      - requires 2 new 2D fields KappaM, verticalShear
1011      - make hFacI and recip_hFacI local 3D variables that are passed to
1012        s/r ggl90_idemix
1013      - fix and improve some comments
1014    
1015    checkpoint65j (2015/02/25)
1016    o pkg/openad
1017      - synchronize seawater.F with version in model/src: replace routine
1018        body of sw_temp by calling sw_ptmp and fix/add a few comments.
1019    o pkg/mnc:
1020      - change default value of pickup_read/write_mnc params to FALSE
1021        (since few features are missing in reading MNC pickup files).
1022    o model/src:
1023      - change default (background) vertical diffusivity for salt to be the
1024        temperature (background) vertical diffusivity.
1025      - change background vertical diffusivity in vertical mixing pkgs ggl90,
1026        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
1027        This makes ptracers default diffusivity (that uses salt diffKr) more
1028        consistent with vertical mixing schemes.
1029    o verification/testreport:
1030      - fix typo in "-pcls" option ;
1031      - put temp files in /tmp (instead of in local dir)
1032      - add option "-ncad" to use genmake2 new option "-nocat4ad"
1033      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
1034    o pkg/ggl90 (idemix code):
1035      - apply few fixes ; add some missing "_d 0" ; update output of exp.
1036        global_ocean.90x40x15.idemix
1037    o OpenAD
1038      - enable active file I/O and begin removal of work-around code
1039        for OpenAD for handling control variables (memory vs. active files)
1040      - new CPP options file OPENAD_OPTIONS.h
1041      - revert to genarr2d gradient check for hs94.1x64x5
1042      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
1043      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
1044    o tools/genmake2:
1045      - add option for an alternative Makefile (from Martin) where multiple
1046        source files are sent to TAF (instead of all in one file).
1047    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
1048      - code provided by Carsten Eden as an extension of ggl90
1049      - so far the code is turned on within ggl90 by setting a CPP-flag at
1050        compile time; a runtime flag implementation is not yet complete
1051      - tested in new verification experiment global_ocean.90x40x15.idemix
1052    o verification:
1053      - reduce length of the AD test run by half for experiments
1054        global_ocean.cs32x15 (std + thsice) and isomip
1055      - enable active file I/O for OpenAD, adjust verifications accordingly
1056      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
1057    o verification/testreport:
1058      - fix two non-POSIX sed statements so that there are no error messages
1059        on Mac OS X
1060      - replace hostname -s with hostname | sed 's/\..*$//'
1061    o model/src/seawater.F:
1062      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
1063        (following the matlab code), which would have avoided the bug caught
1064        by Matt (see below) in the first place
1065    o pkg/shelfice:
1066      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
1067        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
1068      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
1069        ice-shelf case (i.e., within surface level).
1070      - add config summary in shelfice_check.F
1071      - remove global variable recip_SHELFICElatentHeat and replace by a local
1072        variable recip_latentHeat
1073      - introduce diagnostics for friction velocity uStar (in case of
1074        SHELFICEuseGammaFrict)
1075      - change verification experiment isomip.htd:
1076        + start from pickup (as input_ad at nIter0=8640)
1077        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
1078        + test SHELFICEuseGammaFrict = .TRUE.
1079        + test SHELFICEadvDiffHeatFlux = .TRUE.
1080    o model/src:
1081      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
1082        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
1083        update output of experiments global_with_exf.yearly and isomip (all 6).
1084    o pkg/shelfice:
1085      - change setting of kTopC to also be zero where there is no ice-shelf.
1086      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
1087        ice-shelf is.
1088      - first attempt to get RealFreshWaterFlux effects: for now, only without
1089        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
1090    o pkg/seaice: add the option to prescribe a fixed thickness PDF
1091      for thermodynamic calculations
1092      - because of divisions of the type 7/7 not exactly equal to 1, this change
1093        affects results of some verification experiments by up to 4 digits:
1094        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
1095        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
1096        adjoint: lab_sea, lab_sea.noseaicedyn
1097        -> updated
1098    
1099    checkpoint65i (2015/01/23)
1100    o model/src:
1101      - change units of frictionHeating field from W to W/m^2
1102      - fix bug in frictional heating from stratospheric drag in
1103        S/R ATM_PHYS_TENDENCY_APPLY_V
1104      - with synchronous time-stepping: move resetting to zero of frictionHeating
1105        field from load_fields_driver.F to thermodynamics.F ;
1106      - add diagnostics for frictional heating.
1107    o model/src & gmredi K3D:
1108      - add frictionHeating field to pickup-files (for synchronous time-stepping)
1109      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
1110      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
1111        and name in pickup file).
1112      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
1113    o model/src:
1114      - move (from ini_forcing.F) initialisation of all arrays in header file
1115        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
1116        (since Nov 2012) with option selectAddFluid=1.
1117    o pkg/shelfice:
1118      - change units (+ document) of newly added field "shelfIceMassDynTendency"
1119      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
1120    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
1121    o pkg/seaice: two new runtime parameters:
1122      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
1123        long overdue
1124      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
1125        parameterization of tensil stress for fast ice (does not do anything yet)
1126    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
1127        for LSR: move checking overlaps out of JFNK-if-block
1128    o pkg/atm_phys:
1129      - move copy of grid and dynamical fields out of atm_phys_driver.F into
1130        new S/R ATM_PHYS_DYN2PHYS.
1131      - fix level height for Linear Free-Surf case (to be consistent with
1132        fixed-in-time pressure levels).
1133    o pkg/mom_common (bottomdrag):
1134      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
1135        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
1136        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
1137    o pkg/shelfice (u/v_drag):
1138      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
1139      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
1140        (now similar to shelfice_u_drag.F)
1141      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
1142        from mom_vecinv.F (similar to mom_fluxform calls).
1143    o pkg/mom_common (bottomdrag):
1144      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
1145      - add options for alternative discretisation of velocity norm in quadratic
1146        bottom drag: averaging of grid-cell-center KE to U.point and V.point
1147        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
1148        improves when averaging only the other component (e.g. vVel for U bottom
1149        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
1150      - add options (bottomVisc_pCell) to account for partial-cell in bottom
1151        friction (no-slip BC) thus getting the true distance from the bottom;
1152        off by default since this also reduces model stability (explicit bottom
1153        friction). Changes produce different machine truncation with linear-drag
1154        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
1155        front_relax (bvp & mxl, 10 & 11 digits).
1156    o model/src & mom pkgs:
1157      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
1158        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
1159      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
1160        just copy level Nr value to level Nr+1.
1161    o doc:
1162      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
1163    o pkg/shelfice:
1164      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
1165        SHELFICE.h: move array shelficemass to init_varia, initialise
1166        from array shelficemassinit, which is set in init_fixed and
1167        has option to be set from file; introduce array
1168        shelficeMassDynTend array, set thru file in init_fixed
1169      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
1170        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
1171        pkg/streamice
1172      - shelfice_thermodynamics.F: call shelfice_step_icemass if
1173        SHELFICEMassStepping = .true.
1174      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
1175    
1176    checkpoint65h (2014/12/17)
1177    o verification/global_ocean.90x40x15, global_ocean_ebm:
1178      - update to generic controls.
1179    o pkg/ctrl:
1180      - ctrl_map_ini_genarr.F: test for igen>0
1181      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
1182      - move gentim2d part of ctrl_map_ini_genarr.F to
1183        new separate routine : ctrl_map_ini_gentim2d.F
1184      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
1185        add time variable weights and cyclic controls (time mean,
1186        seasonal cycle, etc) capabilities to gentim2d
1187    o pkg/ecco:
1188      - move reading of error, conversion to weights from
1189        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
1190    o global_oce_llc90, cs32:
1191      - activte sbo.
1192      - CTRL_SIZE.h : add maxCtrlProc.
1193      - activate the new genctrl capabilities.
1194      - update following reorganization of global_oce_input_fields.tar.gz  
1195    o pkg/ctrl/ctrl_ad_diff.list:
1196      - add missing ctrl_init_rec.f
1197    o tools/OAD_support/keepOriginal:
1198      - add ctrl_init_rec.F
1199    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
1200      - avoid recomputations of xx_gentim2d_dummy.
1201    o momentum diagnostics:
1202      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
1203        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
1204    o pkg/seaice/seaice_lsr.F:
1205      - fix computation of BU/BV, make sure they are non-zero, only necessary
1206        for cubed sphere exchanges and SEAICE_OLx/y>0.
1207        This makes calling s/r fill_cs_corner_rl obsolete (removed).
1208    o verification/global_ocean.cs32x15/input.seaice
1209      - add test for strong implicit coupling and restricted addtive Schwarz
1210        methods for LSR
1211      - update results/output.seaice.txt
1212    o verification/tutorial_global_oce_biogeo:
1213      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
1214        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
1215        update output_adm,_oadm,_tlm.txt
1216    o pkg/dic:
1217      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
1218      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
1219        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
1220    o verification/tutorial_global_oce_biogeo:
1221      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
1222        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
1223        update output_adm,_oadm,_tlm.txt
1224    o eesupp/src:
1225      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
1226        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
1227    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
1228      LSR (following Hutchings et al. 2004)
1229      - introduce zetaZ as a global variable (requires adjustments in
1230        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
1231        in seaice_calc_viscosities.F
1232      - new flag SEAICEuseStrImpCpl (default off)
1233      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
1234        momentum equations
1235      - JFNK-solver (preconditioner) adjusted to allow using this method
1236        (where it does not have any positive effect)
1237    o pkg/seaice
1238      - add overlap for restrictive additive Schwartz method also to LSR, but
1239        turn it off by default (because it only seems to work for non-cubed
1240        sphere/llc topologies)
1241    o pkg/autodiff
1242      - add extra exchanges in addummy_in_steppging also for mnc output
1243    o pkg/seaice:
1244      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
1245        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
1246    o pkg/obcs:
1247      - add option to specify domain-connected piece Id along OB though files
1248        (for now, only used to diagnose PhiVel; default =1 -> global correction)
1249      - modify obcs_diag_balance.F to process each connected-part separately;
1250        exclude OB where Id = 0 but keep the full divergence there (-> constant
1251        Psi along this portion of OB and all inflow derived from grad(Phi))
1252      - add example of OB-conect files in verification/so_box_biogeo/input.
1253    o pkg/diagnostics:
1254      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
1255      a) use non zero matrix element across OB and solve for Phi 1 grid point
1256         outside OB (i.e, where tracer OBCS are applied).
1257      b) global imbalance of inFlow/outFlow across OB: instead of modifying
1258         velocity across OB, spread it uniformly along the OB in the RHS.
1259    
1260    checkpoint65g (2014/11/19)
1261    o pkg/diagnostcis:
1262      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
1263    o pkg/my82,pp81,kl10:
1264      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
1265        field diffKr as background diffusivity to set minimum diffusivity value.
1266    o pkg/seaice:
1267      - add new parameter SEAICEuseEVPrev (for revisited EVP by
1268        Bouillon et al 2013)
1269      - add SEAICE_evpAlpha/Beta to namelist
1270      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
1271        involve trivial re-ordering of divisions/multiplications that should not
1272        have any effects, but ... they do change the results of lab_sea.hb87 so
1273        that only 2 digits of agreement remain, in line with the general
1274        instability/fragility of the evp-code. For now, I do not care and just
1275        update the verification experiment
1276    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
1277      - remove xx_genarr2d_numsmooth etc
1278      - use xx_genarr2d_preproc etc instead
1279      - carry out smooth_correl2D at initialization stage rather than during
1280        time stepping.
1281      - get smoothOpNb from xx_gentim2d_preproc
1282    o global_oce_cs32 :
1283      - add test of generic ecco capabilities.
1284    o pkg/exf/exf_getsurfacefluxes.F :
1285      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
1286    o pkg/ctrl,ecco :
1287      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
1288        is defined.
1289    o pkg/seaice: add diagnostics for Delta (deformation parameter)
1290    o model/src:
1291      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
1292        diffusivity (background) is specified but ignored.
1293    o verification:
1294      - in testreport, convert hostname to lower case for default output dir name
1295    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
1296    o pkg/dic: add modifications from Hajoon:
1297      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
1298      - light attenuation: add self-shading effect by climatological Chlorophyll
1299        (read from file).
1300    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
1301        compiles when SEAICE_ALLOW_DYNAMICS is undefined
1302    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
1303        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
1304        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
1305        approach where CPP_OPTIONS.h includes an omnipotent
1306        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
1307    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
1308        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
1309    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
1310        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
1311        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
1312    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
1313      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
1314      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
1315      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
1316      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
1317    o pkg/ctrl,ecco,exf :
1318      - remove variables associated with NON-generic costs,
1319        unless ECCO_CTRL_DEPRECATED is defined.
1320      - remove NON-generic NON-obcs controls,
1321        unless ECCO_CTRL_DEPRECATED is defined.
1322    o pkg/ctrl : added ctrl_local_params.h
1323    o pkg/ecco : added ecco_local_params.h
1324    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
1325        experiments, which will progressively be removed once the
1326        experiments are revised to use only generic controls/costs.
1327    
1328    checkpoint65f (2014/10/13)
1329    o pkg/ctrl, ecco, seaice : minor changes in headers
1330    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
1331        cost function and control capabilities added since checkpoint65c.
1332    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
1333    o pkg/ecco: increase modularity and improve logic
1334      - ecco_toolbox.F (new) : basic operations that are often used,
1335        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
1336        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
1337      - cost_gencal.F (new) : determine filnames and records.
1338      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
1339      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
1340        and exploit the above functions leading to more compact code.
1341      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
1342      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
1343        using_ers, using_gfo, using_mdt is now only defined within gencost)
1344    o pkg/ecco: extend generic cost capabilities
1345      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
1346        capabilities via gencost_preproc (+ _c,_i,_r related params),
1347        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
1348        gencost_outputlevel arguments to cost_generic
1349      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
1350        and active_read, making room for gencost_preproc to take effect.
1351        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
1352      - pkg/ecco/cost_generic.F :
1353        compute and store misfit maks*(model-data) in localdif that is
1354        then used in cost and for output, output misfit if outlev.GT.0
1355      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
1356        rather gencost_barfile for deciding whether to write barfile
1357      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
1358      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
1359        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
1360      - pkg/ecco/ecco_summary.F : report gencost variables
1361      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
1362    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
1363    o pkg/ecco: internal re-organization
1364      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
1365        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
1366        mv relevant variables definition from ecco_cost.h to ecco.h,
1367        make sure gencost routines only include ecco.h)
1368      - throughout : add missing CCP switches, rm unused variables,
1369        and rm un-necessary CPP switches
1370      - throughout gencost routines : replace modelstartdate with
1371        gencost_startdate when needed
1372      - cost_bp_read.F : use arguments, instead of common blocs
1373        so that it can be used also by (new) cost_gencost_bpv4.F
1374      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
1375      - ecco_phys.F : compute etanFull
1376      - ecco_readparms.F : rename using_topex as using_tpj, add
1377        bpv4-grace to gencost list, initialize added parameters
1378      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
1379    
1380    checkpoint65e (2014/09/28)
1381    o pkg/obcs:
1382      - replaced the just-added CPP options with run-time variables
1383        (see pkg/obcs/OBCS_PARAMS.h for details)
1384    o pkg/obcs:
1385      - add additional CPP options for sponge boundary layers
1386        (see pkg/obcs/OBCS_OPTIONS.h for details)
1387    o pkg/atm_phys:
1388      - implement simple (obliquity only, assuming circular planet orbit)
1389        seasonal cycle for incoming insolation ; used when run-time parameter
1390        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
1391    o pkg/exf, pkg/ecco, pkg/ctrl:
1392      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
1393      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
1394      - implement gentim2d for xx_tauu, xx_tauv
1395    o pkg/ctrl, pkg/ecco :
1396      - fix and complement the generic controls implementation
1397    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
1398        pkg/shelfice/shelfice_thermodynamics.F,
1399        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
1400        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
1401      - add weight in CTRL_GET_GEN calls
1402    o pkg/ctrl :
1403      - ctrl_get_gen.F : add weight as input parameter, and apply
1404        it directly rather than using smooth_correl2Dw (to be retired).
1405      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
1406    o pkg/ctrl :
1407      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
1408        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
1409      - re-activate ctrl_summary (call in ctrl_init.F)
1410    o pkg/ctrl/ctrl_cost_gen.F :
1411      - fix CCP brackets, remove un-necessary myiter, mytime
1412    o pkg/ecco, pkg/ctrl :
1413      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
1414      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
1415      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
1416      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
1417    
1418    checkpoint65d (2014/09/15)
1419    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
1420      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
1421        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
1422    o pkg/ctrl/ctrl_map_ini_genarr.F :
1423      - remove compilation failure
1424      - replace hard coded example
1425      - use ctrl_map_ini_gen2D, 3D
1426    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
1427      - on/off switch based upon xx_genarr2d_weight,3d
1428    o src/packages_init_variables.F :
1429      - regroup pkg/estimation calls
1430      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1431        (moved to ctrl_init_variables)
1432    o cost/cost_init_varia.F :
1433      - remove ecco_cost_init_varia
1434        (moved to ecco_init_varia)
1435    o ctrl/ctrl_init_variables.F :
1436      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1437      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
1438    o ctrl/ctrl_map_ini.F :
1439      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
1440        (moved to ctrl_init_variables)
1441    o ctrl/ctrl_map_ini_ecco.F :
1442      - remove ECCO_PHYS (mv to ecco_init_varia)
1443      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
1444    o ecco/ecco_ad_diff.list :
1445      - add ecco_init_varia.f
1446    o ecco/ecco_init_varia.F
1447      - new routine
1448    o pkg/streamice:
1449      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
1450        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
1451      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
1452    o pkg/generic_advdiff:
1453      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
1454    o pkg/exf:
1455      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
1456         xxg_precip capability
1457      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
1458    o pkg/ctrl:
1459      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
1460    o model/src/load_fields_driver.F :
1461      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
1462        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
1463    o OpenAD verification experiments:
1464      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
1465        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
1466        for now, only in pkgs used in OpenAD verification experiments.
1467      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
1468        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
1469        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
1470        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
1471    o OpenAD verification tests:
1472      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
1473      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
1474        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
1475      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
1476        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
1477    o model/src & generic_advdiff:
1478      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
1479        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
1480        dynamics requires valid tracer forcing only over tile interior but, for
1481        some diagnostics, may need to extend it over 1 point in tile halo region.
1482      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
1483        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
1484        setting in temp/salt/ptracer_integrate.F
1485    o pkg/dic:
1486      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
1487        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
1488        in gchem_forcing_sep.F
1489    o pkg/autodiff & obcs:
1490      - add storage of current OB values for U & V (was already done for T & S).
1491    
1492    checkpoint65c (2014/08/30)
1493    o pkg/dic:
1494      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
1495        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
1496        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
1497    o verification:
1498      - new experiment testing OBCS and DIC pkgs, using params & output from
1499        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
1500        passage: take OBCS from the last year of a 2 yrs simulation and initial
1501        conditions from t=1.yr while keeping the same forcing.
1502    o model/src:
1503      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
1504        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
1505    o pkg/diagnostics (Stats-Diags):
1506      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
1507        a) refine region where stats are computed, excluding where arrhFac=0 ;
1508        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
1509        c) extend regional stats over the region edges (for U or V pt location).
1510    o pkg/gchem:
1511      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
1512        pkg/dic is currently changing/updating ptracers values beyond the OB).
1513    o verification (hs94):
1514      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
1515        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
1516        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
1517        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
1518    o pkg/ptracers:
1519      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
1520        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
1521      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
1522        with AB-2 code (so that it get tested).
1523    o model/src:
1524      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
1525        with AB-2 code (previously only available with AB-3 code).
1526        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
1527        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
1528        there, by calling CYCLE_AB_TRACER).
1529    o pkg/generic_advdiff:
1530      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
1531        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
1532        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
1533        S/R temp/salt/ptracers_integrate.F
1534    o model/src & pkg/ptracers:
1535      - remove common block variables gT,gS (in DYNVARS.h), except when
1536         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
1537      - remove common block variable gPtr.
1538    o model/src & pkgs:
1539      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
1540         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
1541         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
1542         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
1543      + change accordingly all calling S/R.
1544      - use local temperature/salinity/ptracer tendency array (without bi,bj)
1545        in S/R temp/salt/ptracers_integrate.F
1546    o pkg/seaice:
1547      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
1548        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
1549      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
1550        in seaice_lsr
1551      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
1552        in s/r seaice_lsr_calc_coeffs
1553    o pkg/mdsio:
1554      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
1555        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
1556        too long (e.g., > MAX_LEN_FNAM/2 )
1557    
1558    checkpoint65b (2014/08/12)
1559    o pkg/matrix:
1560      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
1561    o model/src:
1562      - fix initialisation of geothermalFile; compile geothermal-flux code in
1563        natl_box verification experiment.
1564    o model/src & pkg/down_slope:
1565      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
1566      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
1567        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
1568        results at machine truncation level: update output of experiments
1569        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
1570    o pkg/diagnostics (Stats-Diags):
1571      - do not cumulate the full volume when DIAGNOSTICS_FILL is
1572        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
1573        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
1574        times (but Min,Max and StD are still wrong).
1575    o model/src:
1576      - add geothermal flux forcing: read in ini_forcing.F as time-constant
1577        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
1578    o model/src:
1579      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
1580        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
1581        arrays are already updated while adjustments (filters, conv.adjustment) are
1582        still applied later, in S/R TRACERS_CORRECTION_STEP.
1583    o model/src:
1584      - store in common bloc array "rhoInSitu" the virtual potential temperature
1585        anomaly that is used to compute geopotential: this make the atmos code
1586        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
1587    o pkg/seaice/seaice_lsr.F
1588      - rename integer variable ilcall to ipass (that's what it is called
1589        in the residual diagnostics
1590      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
1591        default) for improved non-linear convergence of the first few steps
1592      - adjust a few comments and add new ones to explain some of the store
1593        directives
1594    o pkg/generic_advdiff (& ptracers):
1595      - re-work the code to check for valid advection scheme and for minimum
1596        size of overlap (now stored in local common bloc in gad_advscheme.F)
1597    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
1598      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
1599      - add an auxilliary variable "bet" and fix store directives and keys in
1600        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
1601        less exact gradients in my tests); but there are still
1602        recomputation warning (although gradients are sort of OK), when
1603        SEAICE_LSR_VECTORIZE is not defined, so this flag and
1604        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
1605      - update verification experiments lab_sea.
1606      - change some comments in S/R seaice_calc_viscosities
1607    o model/src:
1608      - if staggerTimeStep=T, always apply exchange to velocity field in
1609        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
1610        (independent of using multi-dim advection or not); no effect on FWD run
1611        but affects AD results (at machine truncation level): update output of
1612        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
1613        and isomip (oad: 12.d).
1614    o pkg/generic_advdiff:
1615      - stop if doAB_onGtGs is set to FALSE but ignored
1616      - refine warning related to stability of tracer time-stepping
1617        regarding internal wave dynamics.
1618      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
1619        on staggerTimeStep & implicitIntGravWave (will now get a warning
1620        if potentially unstable).
1621    o pkg/kl10:
1622      - add new pkg "kl10" for mixing due to internal wave breaking, from
1623        http://www.sciencedirect.com/science/article/pii/S1463500310000144
1624        (contribution from Jody Klymak), tested in verification experiment
1625        verification/internal_wave/input.kl10/
1626    o isomip experiment:
1627      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
1628        (input.htd) and update the output.
1629    o cd_code experiments:
1630      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
1631        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
1632        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
1633        update the corresponding output.
1634    o pkg/seaice:
1635      - reduce the number of include files and store directives in
1636        S/R seaice_lsr_tridiagu/v
1637      - change the order of loops in one case in S/R seaice_lsr_tridiagv
1638        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
1639        get rid off one store directive (a TAF bug?)
1640      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
1641        S/R seaice_lsr_tridiagv to change the loop range for consistency
1642      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
1643      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
1644        S/R seaice_lsr_tridiagu/v (requires update of
1645        offline_exf_seaice/input.dyn_jfnk)
1646    
1647    checkpoint65a (2014/07/27)
1648    o model/src:
1649      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
1650        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
1651        (topo in p-coords, ice-shelf in z-coords); update output of experiments
1652        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
1653    o model/src:
1654      - collect momentum forcing tendency into local 2-D array (passed as argument
1655        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
1656        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
1657        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
1658      - collect T & S forcing tendency into local 2-D array (passed as argument to
1659        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
1660        affects results at machine truncation level (e.g., ocean: if using
1661        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
1662        correction due to vertical advection).
1663      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
1664        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
1665        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
1666        obcs_ctrl (ad & fwd grd @ 12 & 7).
1667    o pkg/ptracers & diagnostics:
1668      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
1669        title (to avoid some unexpected truncation); sort out ptracers diags units.
1670      - collect ptracer forcing tendency into local 2-D array (passed as argument
1671        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
1672    
1673    checkpoint65 (2014/07/18)
1674    o pkg/fizhi:
1675      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
1676        affects results at machine truncation level. Update output of experiments
1677        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
1678    o pkg/seaice: more clean up
1679      - rename TAF common block tapes to be more consistent and remove
1680        unnecessary duplicates
1681      - add store directives to remove more recomputations, but use smaller
1682        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
1683        The idea behind this flag is to reduce the memory footprint when the
1684        adjoint of the LSR is not required. As of now, defining the flag
1685        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
1686        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
1687        For experiment offline_exf_seaice, this means on a linux box with gfortran
1688        nearly a factor of 10 (but keep in mind there is mostly seaice code in
1689        this experiment):
1690        > size mitgcmuv_ad
1691        text    data        bss     dec        hex
1692        5100659 1216  220458952  225560827  d71c8fb
1693        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
1694        but only a moderate increase of 36% for global_ocean.cs32x15:
1695        text    data        bss     dec        hex
1696        6695027 1648 1014578664 1021275339 3cdf6ccb
1697        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
1698      - note: there are still recomputations in global_ocean.cs32x15 and
1699        offline_exf_seaice and the gradient agreement changes (gets a
1700        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
1701      - in general, the AD gradients still are wrong
1702    o OpenAD
1703      - clean up code_oad/ directories somewhat by moving files
1704        dontCompile, dontTransform, keepOriginal to OAD_support/
1705    o model/src:
1706      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
1707        (not currently tested): add dissipation terms before NLFS rescaling of
1708        tendencies (previously done after).
1709    o pkg/diagnostics:
1710      - write stats-diags in ascii file with more digits (same as in monitor).
1711    o pkg/down_slope:
1712      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
1713        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
1714    o model/src:
1715      - new file "apply_forcing.F" containing all the code previously in
1716        external_forcing.F, but with new argument list: pass, as new argument,
1717        the current level tendency array to update (instead of a direct update
1718        of the common bloc array). Change the corresponding calls.
1719      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
1720        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
1721    o pkg/seaice/seaice_lsr, a little bit of clean up
1722      - rearrange some code blocks, so that now all calculations for
1723        setting up the right-hand-sides done within one single block
1724        (I find that easier to read and understand)
1725      - rearrange freedrift-code to reduce the number of ifdefs
1726      - adjust some indentations and comments
1727    
1728    checkpoint64z (2014/07/10)
1729    o model/src and several pkgs:
1730      - change argument list of all S/R called from external_forcing.F and
1731        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
1732        to pass, as argument, the current level tendency array to update
1733        (instead of a direct update of the common bloc array).
1734      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
1735      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
1736    o pkg/seaice/seaice_lsr.F
1737      - always initialize local arrays in seaice_lsr_tridiagu/v
1738      - add more local tapes to seaice_lsr_tridiagu/v
1739      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
1740        keep it in bi/bj loop; this seems to be essential
1741      - gradients are still wrong but only by 4-7 orders of magnitude
1742        instead of 15 orders of magnitude, lab_sea improves a little
1743    o pkg/seaice
1744      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
1745        generates unnecessary code in seaice_lsr_ad
1746      - add more store directives in seaice_lsr to avoid unnecessary code
1747        in seaice_lsr_ad
1748      - exclude some residual computations in seaice_lsr when
1749        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
1750        in seaice_lsr_ad
1751      - add more storing, a new tape (model/src/the_main_loop.F) and
1752        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
1753        and klockey should be checked by a specialist)
1754      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
1755        and update lab_sea after previous changes in pkg/seaice below
1756    o pkg/autodiff:
1757      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
1758        viscFacInAd : run time parameters allowing for adjoint switches
1759        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
1760    o pkg/ecco:
1761      - introduce cost_gencost_boxmean.F that computes a box mean
1762        temperature (for use in adjoint sensitivity studies).
1763    o model/src/set_defaults.F : initialize viscFacAdj to 1.
1764    o pkg/mom_common/mom_calc_visc.F:
1765      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
1766    o pkg/seaice/seaice_summary.F:
1767      - statement for SEAICEadjMODE now in autodiff_readparms.F
1768    o pkg/seaice:
1769      - remove some store directives and add new ones in an effort to get
1770        finally rid off the recomputation warnings. This is successful
1771        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
1772        defined (i.e. no extensive recomputation warnings left), but there
1773        are still too many recomputations on the solver iteration level
1774      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
1775      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
1776        SEAICE_SIZE.h
1777      - add a store directive in S/R seaice_calc_viscosities
1778    o pkg/seaice (ITD code):
1779      - fix definition of Hlimit for multi-threaded case
1780      - use double precision arithmetic to compute Hlimit: this affects results;
1781        update output of experiment seaice_itd.
1782    o replace content of verification/seaice_itd
1783      - instead of a 1D column use the configuration of offline_exf_seaice
1784        to test the ice thickness distribution code with ridging
1785      - this is a first shot at this experiment
1786      - change of some defaults of ridging parameters SEAICEhStar (from
1787        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
1788        and lot of new comments.
1789    
1790    checkpoint64y (2014/06/20)
1791    o pkg/seaice/seaice_reg_ridge.F:
1792      - modify the regularization of very small volumes of ice; only check
1793        total volume HEFF, and do not apply correction to individual ice
1794        classes because that leads to funny patterns in the heat and fw-fluxes
1795        into the ocean. Adjust seaice_itd/results/output.txt
1796      - replace nITD by SEAICE_multDim in loop-ranges
1797    o pkg/exf:
1798      - add code to process the case field period = -12. with UV interpolation.
1799      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
1800        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
1801    o verification/global_with_exf:
1802      - switch all fields period to -12. (was previously untested) in input/data.exf
1803        (but keep secondary test ".yearly" unchanged); update the reference output.
1804    o pkg/cal:
1805      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
1806    o pkg/exf:
1807      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
1808        to replace logical switch "exf_verbose"
1809      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
1810    o pkg/sbo:
1811      - update from Katherine Quinn: evaluate mass directly from density and SSH
1812        (budget using Finite Volume method) instead of from bottom pressure.
1813      - allow testreport to collect few selected SBO output ; tested in exp.
1814        global_ocean.90x40x15 (after updating the results, to include SBO output).
1815      - fix some multi-threading issues (in output part).
1816    o model/src & most packages:
1817      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
1818      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
1819        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
1820        "data.{pkg}" exist ; and leave the S/R (return) just after.
1821      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
1822        + call LAND_READPARMS from packages_readparms.F
1823    o pkg/seaice:
1824      - remove code that resets useThSice in S/R seaice_readparms and
1825        replace it by a warning in S/R seaice_check
1826      - remove parameter MULTDIM, replace with nITD and runtime
1827        parameter SEAICE_multDim (still hard-wired to nITD if
1828        SEAICE_ITD is defined)
1829    
1830    checkpoint64x (2014/05/24)
1831    o verification/lab_sea:
1832      - update adjoint and TLM output following changes to pkg/salt_plume
1833      - un-do the update after putting back local recip_Cp in few places.
1834    o pkg/salt_plume: modifications by An Nguyen:
1835      - add capability to do brine rejection (salt-plume) as function of
1836        volume+tracers (instead of only salinity tracer).
1837      - conserve volume by exchanging volume from each kLev to above to
1838        accommodate in-coming brine volume
1839      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
1840      - switch KPP surf buoyancy due to brine forcing to 3-d
1841        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
1842      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
1843      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
1844        in East/West Arctic.
1845    o pkg/sbo:
1846      - incorporate modifications from Katherine Quinn to enable the use of sbo
1847        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
1848        output for future testreport verification (unfinished).
1849    o pkg/atm_phys:
1850      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
1851        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
1852        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
1853    o pkg/seaice
1854      seaice_calc_ice_strength.F: modify expression to avoid divisions
1855        (affects truncation)
1856      seaice_do_ridging.F: clean up the insectarium
1857      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
1858      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
1859      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
1860      - add some debugging information and error messages (warnings)
1861    o model/src: modifications relatd to atmosphere p*:
1862      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
1863      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
1864        of vertical profile tRef in geopotential background and anomaly.
1865      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
1866        and pkg/atm_phys.
1867      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
1868        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
1869    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
1870    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
1871        not used right now, but can be used in BGC packages to fix conservation.
1872    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
1873        other packages too.
1874    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
1875        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
1876    o model/src:
1877      - since we have several heat capacity (even in model/src), define "recip_Cp"
1878        as local variable (no longer in common block) to avoid any confusion.
1879      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
1880    o pkg/exf:
1881      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
1882        air density as function of air Temp, Humidity and atm pressure.
1883    
1884    checkpoint64w (2014/05/02)
1885    o verification:
1886      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
1887        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
1888        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
1889        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
1890        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
1891    o model/src: for atmosphere in p* coords:
1892      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
1893      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
1894        but not yet activated.
1895    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
1896      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
1897      - this changes the results (but not for any verification experiment, because
1898        none tests this), but avoids having an extra field in the restart files
1899    o pkg/seaice: remove global variable TICE (not needed)
1900      - replace by TICES or local variable where necessary (cost_seaice_test,
1901        seaice_diagnostics_state)
1902      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
1903      - use specific read/write routines for reading and writing individual leves
1904        of a multilevel field
1905    o pkg/ctrl & model/inc:
1906      - move additional anomaly fields of control vars (related to options:
1907         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
1908        from DYNVARS.h into new header file: CTRL_FIELDS.h
1909    o pkg/seaice: some small modifications to the ridging code
1910      - make fw2ObyRidge a global variable and add the freshwater flux to
1911        seaice_growth
1912      - pass actual thickness from seaice_prepare_ridging, so that it is
1913        computed only in one place and compute it in the same way as in
1914        seaice_growth
1915      - initialise more fields in seaice_do_ridging that where cause floating
1916        point exceptions over land
1917    o pkg/seaice: preparations for ridging code and first real ridging code
1918      - move most of "PART 1" of S/R seaice_growth into a new and separate
1919        S/R seaice_reg_ridge that will both regularize the state variable after
1920        advection call the actual ridging routine;
1921      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
1922        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
1923      - remove ridging code from seaice_advdiff
1924      - clean up remaining part 1 of seaice_growth in an attempt to make it
1925        more readable (this is probably subjective)
1926      - call seaice_itd_redist once in the initialisation phase to have the initial
1927        conditions in the correct category
1928      - finally: add new ridging routine for ITD code
1929    
1930    checkpoint64v (2014/04/11)
1931    o pkg/ecco:
1932      - add runtime parameters mdt[start,end]date[1,2]
1933      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
1934    o pkg/seaice:
1935      - make deltaC a global variable, so that it can be used in ridging code
1936      - first step towards ridging: introduce new routines that compute
1937        ice strength based on ridging parameters
1938      - add diagnostic for HSNOWITD
1939      - add opnWtrFrac as a global variable (required for ridging scheme)
1940    o pkg/salt_plume + pkg/seaice/seaice_growth.F
1941      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
1942        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
1943    o verification/hs94.1x64x5:
1944      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
1945      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
1946    o autodiff:
1947      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
1948        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
1949        For now, only in pkgs used in verification/hs94.1x64x5.
1950      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
1951        which are specific to TAF/TAMC).
1952      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
1953        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
1954        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
1955      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
1956        building mitgcmuv_ad (make adAll).
1957    o pkg/ecco:
1958      - cost_gencost_seaicev4.F:
1959         reformulate proxy cost as function of sst and local param SEAICE_freeze
1960         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
1961      - add stop statement if old names siv4-[sst,vol] are used
1962      - add snapshots + cost reports for atmospheric longwave
1963      - remove factor 0.1 in front of wtau[u,v]
1964      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
1965         ALLOW_TMI_SST_COST_CONTRIBUTION
1966    o pkg/atm_phys:
1967      - add some diagnostics for Short-wave and for convection S/R.
1968    o pkg/seaice/seaice_growth:
1969      - fix a bug in the lateral melt parameterization for SEAICE_ITD
1970        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
1971      - rearrange loop order for better vector code in the same code block
1972      - rewrite the floeDiameter formula to have fewer divisions
1973      -  (miraculously) none of this changes the results of seaice_itd
1974    o pkg/smooth:
1975      - move param smooth2Ddiffnbt to pkg/ecco
1976    o pkg/salt_plume:
1977      - salt_plume_frac.F:
1978         clean up local param names
1979         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
1980    o pkg/rw:
1981      - add RS version of S/R READ_MFLDS_LEV.
1982    o pkg/streamice:
1983      - fix the restart test by writing/reading pickup_streamice files.
1984    o pkg/seaice:
1985      - refine checks for jfnk-related parameters
1986      - comment out if statement with SEAICEuseIMEX parameter as long as there
1987        is no IMEX code to avoid confusion and surprises
1988    
1989    checkpoint64u (2014/03/07)
1990    o verification/MLAdjust:
1991      - rename secondary test suffix:
1992         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
1993         0.leithD -> AhFlxF  + switch to flux-form
1994         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
1995         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
1996    o pkg/mom_vecinv:
1997      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
1998        to be before mom_calc_visc.F)
1999      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
2000      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
2001        this is simpler for the adjoint and for diagnostics.
2002    o model/src + pkg/momentum:
2003      - add input files for  2-D additional Western and Southern cell-edge wall
2004         (e.g., to add "thin-wall" where it is =1).
2005      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
2006        using 2nd hFacZ that is computed from initial (fix domain) hFac
2007      - known limitations of thin wall implementation: not yet coded for sigma
2008        coords; not working with CD-scheme neither.
2009    o pkg/seaice:
2010      - rename recently introduced parameters from (wrong name) AB to
2011        BDF (backward difference time discretisation)
2012      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
2013    o tools/adjoint_options:
2014      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
2015    
2016    checkpoint64t (2014/02/01)
2017    o pkg/ecco
2018      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
2019        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
2020      - replace hard-coded record number and period which only work for monthly
2021        with read-in runtime param that works for other periods (month,day,year)
2022    o pkg/thsice
2023      - corrected store directive fixes thsice adjoint gradient checks
2024    o genmake2 & testreport:
2025      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
2026        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
2027        Update testreport accordingly. No need to set "export OPENAD=true"
2028        in adjoint_options/adjoint_oad anymore (will be removed later).
2029    o pkg/shelfice:
2030      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
2031        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
2032        so that surface forcing applies to k=kSurf if using pkg/shelfice.
2033    o pkg/ctrl, pkg/grdchk, pkg/ecco:
2034      - Changes to make GENARR more modular (i.e. invisible if not used)
2035    o model/src/temp_integrate.F and salt_integrate.F
2036      - re-include store directives that were removed on Dec 27th.
2037    o model/src/external_forcing_surf.F
2038      - add storage directives for EmPmR and PmEpR to avoid recomputation of
2039        seaice_model in the adjoint that is problematic when seaice_model is
2040        turned off in the adjoint. The resolved issue dated back to July when
2041        EXTERNAL_FORCING_SURF call was moved.
2042        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
2043    o pkg/exf/exf_check.F
2044      - fix a small bug again (originally found by Wentao Liu, now found again)
2045      - streamline error output
2046    o pkg/streamice and aim_v23:
2047      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
2048        Apple's /usr/bin/cpp knows what to do:
2049        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
2050        Target: x86_64-apple-darwin13.0.0
2051    
2052    checkpoint64s (2014/01/05)
2053    o tools/adjoint_options:
2054      - switch to fastopt.net TAF server (instead of default fastopt.de) for
2055        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
2056    o model/src:
2057      - remove some unnecessary TAF storage directives in forward_step.F and
2058        in dynamics.F (note: not always removed by TAF, e.g., double storage
2059        of kappaRU,kappaRV in former version of dynamics.F).
2060    o model/src & pkg/ptracers:
2061      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
2062        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
2063        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
2064      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
2065      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
2066      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
2067    o useSingleCpuInput separates single-CPU input from single-CPU output;
2068        for now only implemented for in exf_interp_read.F
2069    o verification/advect_xy:
2070      - fix missing EXCH call in local version of ini_salt.F and update output.
2071    o momentum diagnostics:
2072      - fix which deltaT is used in Total-Tendency diagnostics.
2073      - fix typo in diagnostics for momentum tendency from AB.
2074    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
2075        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
2076    
2077    checkpoint64r (2013/12/08)
2078    o verification/*/results:
2079      - Update reference output of experiments that were passing with just 13 digits
2080         (make it easier to detect future changes in results)
2081    o model/src & pkg/ptracers:
2082      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
2083        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
2084        to inside ptracers_integrate.F ; remove ptracers_advection.F
2085    o coupling interface pkgs:
2086        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
2087      - change the config check to test the agreement of Ocean Depth
2088        with ATM land/sea mask (instead of ATM orography);
2089      - send to coupler the number of coupler time-steps to do for this run:
2090        this allows to check for consistency and don't need anymore to be
2091        specified in parameter file "data";
2092      in coupler:
2093      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
2094      - improve report to log-file of config setting (pass log-file unit to few S/R)
2095    o pkg/compon_communic:
2096      - add coupling send/receive for non-tiled integer vector;
2097      - add S/R to check and stop if any proc has an error (similar to
2098        eesupp/src/stop_if_error.F but single thread and across Comm_World).
2099    o pkg/exch2:
2100      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
2101        through list of all tiles my proc owns.
2102    o model/src:
2103      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
2104        from rTrans) to simplify dependencies (no need to store rTrans anymore in
2105        calling S/R); this affects AD results at machine truncation level:
2106        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
2107        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
2108    o tools/build_options:
2109      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
2110    o coupling interface pkgs:
2111        [compon_communic, atm_compon_interf & ocn_compon_interf]
2112      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
2113        to each S/R that needs it; remove un-used variables.
2114      - change component tile registration (cpl_register.F in both compon_interf
2115        and mitcomponent_tile_register.F) to pass the full list of tiles
2116        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
2117      - with pkg/exch2: adopt the same convention used for I/O to define mapping
2118        towards coupler global array (unless W2_useE2ioLayOut=F):
2119         a) can now use different tiling between atm & ocn comp.
2120         b) no needs to modify the run-Off map when changing tiling (was needed
2121            even if using the same tiling between atm & ocn).
2122         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
2123            full land tiles); not yet tested.
2124      - check for valid mapping from comp. tile to coupler global array
2125      - improve report of tile registration results to log file.
2126    o pkg/exch2:
2127      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
2128        tile-registration (CPL_REGISTER);
2129      - activate (un-comment) definition and setting of "W2_tileIndex" list to
2130        store the local bi,bj indices of each tile;
2131      - also print bi,bj in local report to log file;
2132      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
2133        Jun 2009 modif of pkg/exch2).
2134    o testing on baudelaire:
2135      - run 2 tests at a time: no significant slow down (since enough cpu) and
2136        get the full set of test done earlier
2137      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
2138    o model/src/thermodynamics.F and routines called from it:
2139      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
2140        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
2141        velocity (outp) by adding bolus velocity.
2142      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
2143        mass transport from velocity + lateral grid cell area
2144      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
2145      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
2146     in thermodynamics.F
2147      - remove k from thermodynamics.F and move it to temp_integrate.F
2148        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
2149        loop).
2150      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
2151        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
2152        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
2153        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
2154      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
2155        global_ocean.90x40x15, tutorial_global_oce_biogeo and
2156        tutorial_tracer_adjsens (+ TLM output).
2157    o tools/OAD_support and (verification/*/) code_oad:
2158      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
2159        module conversion ; remove unneeded CPP_EEOPTIONS.h.
2160      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
2161        version (closer to model/inc/CPP_OPTIONS.h).
2162    o model/src:
2163      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
2164        retired list of parameters (routine FREEZE has been replace by surface
2165        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
2166    o pkg/gmredi:
2167      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
2168        velocity (same scheme but affects machine truncation) for GM_AdvForm.
2169      - update output of FWD experiments: front_relax.bvp,
2170        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
2171    
2172    checkpoint64q (2013/11/17)
2173    o verification:
2174      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
2175        tutorial_global_oce_biogeo and global_ocean.90x40x15.
2176      - generate new output (growth & melt) for seaice_itd experiment after
2177        updating the input pickup_seaice files (previously wrong).
2178    o pkg/cost:
2179      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
2180        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
2181        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
2182          cannot be applied to var in common block).
2183        o allows to get results independent of tile-per-proc setting (if using
2184          slower GLOBAL_SUM_SEND_RECV option).
2185      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
2186        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
2187        forward gradients: update output).
2188      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
2189        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
2190    o pkg/mom_common:
2191      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
2192        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
2193        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
2194        ensure that all field value that are used are set.
2195    o tutorial_deep_convection (smag3d):
2196      - add missing scaling in mom_calc_smag_3d.F;
2197      - set smag3D_coeff in input.smag3d such that results do not change.
2198    o pkg/dic:
2199      - change dic_cost.F to compute cost on each tile first and then apply
2200        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
2201        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
2202      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
2203    o eesupp/src & pkg/mdsio:
2204      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
2205        (from pkg/mdsio) since they are no longer used for tape IO.
2206      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
2207        (+ keep a copy in pkg/atm_ocn_coupler).
2208    o verification/isomip:
2209      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
2210    o tools/build_options:
2211      - optfile linux_amd64_ifort11, fast (no ieee) case:
2212        to get a working restart for all experiments, add "-fp-model source"
2213        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
2214    
2215    checkpoint64p (2013/10/20)
2216    o pkg/autodiff:
2217      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
2218        criteria, return to simple (default) tape IO format.
2219    o pkg/mdsio (+ eesupp/src):
2220      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
2221        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
2222      - fix globalFile and singleCpuIO options using simpler global mapping.
2223      - new pairs of scatter/gather vector S/R (one for each type, generated from
2224        template) corresponding to simpler global mapping.
2225      - adread_write.F: switch to new S/R (but leave old calls commented) and write
2226        to globalFile when parameter globalFiles is set to True.
2227      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
2228    o pkg/autodiff:
2229      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
2230        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
2231        missing, just add a STOP if array type do not match.
2232    o pkg/exf:
2233      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
2234         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
2235         and rename array obsSIce to exf_iceFraction.
2236    o tutorial_deep_convection:
2237      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
2238        for now all in this exp. code dir.
2239      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
2240        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
2241    o eesupp/src:
2242      - added SINGLE_DISK_IO option because reading of parameter files on
2243        very large number of processors did not work with existing set-up
2244    
2245    checkpoint64o (2013/09/25)
2246    o pkg/atm_phys & atm_compon_interf:
2247      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
2248    o tools/build_options:
2249      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
2250        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
2251        remove CPP setting (was identical to genmake2 default).
2252    o pkg/gmredi & model/src: Some updating and work done on the residual model.
2253      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
2254      - fixed up the calculation of the eddy stress and how it is added to the
2255        external forcing via taueddy_external_forcing.F
2256      - at the moment, it is very experimental and only works with the variable eddy
2257        diffusivity calculated in gmredi_k3d.F
2258    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
2259        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
2260    o testreport (& tools/do_tst_2+2):
2261      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
2262    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
2263      - remove CPP='cpp -traditional -P' (this is genmake2 default)
2264      - add switch (for big setups) to use 'medium' memory-model (but leave it
2265        commented out for now). Note: needed with FC 19 to compile big setups.
2266    o pkg/atm_compon_interf:
2267      - regroup per field origin (model & pkgs) the coupling storage routines
2268         (which accumalate in time each coupling field)
2269      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
2270        update accordingly + simplify aim_do_physics.F
2271    
2272    checkpoint64n (2013/08/26)
2273    o pkg/bbl:
2274      - update formulation to reduce dispersion of tracer properties in bbl
2275      - replaced horizontal and vertical transport parameters with velocities
2276      - changes results for verification/global_with_exf.yearly
2277    o verification/halfpipe_streamice:
2278      - change to matrix construction; update both Fwd & AD output.
2279    o verification/tutorial_tracer_adjsens:
2280      - OpenAD test: switch to vector-invariant momentum since fluxform with
2281        rStar causes problems with OpenAD; update output.
2282    o tools:
2283      - genmake2: define a common prefix for all temp-file names ; move them
2284        to local /tmp disk (but would be easy to move them back);
2285      - xmakedepend: apply the same switch for temp-files.
2286    o pkg/offline:
2287      - changes for use with rStar (NLFS): assume that we continue to provide
2288        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
2289        output files) and apply r* scaling at each time-step (function of the time
2290        varying Eta field); use normal pickup files (needed for restart with NLFS).
2291    o adjoint with OpenAD:
2292      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
2293        package openad.  This package has to be compiled for all runs with OpenAD
2294        instead of specifying code_oad_all as a modification directory.
2295      - link the fortran templates from tools/OAD_support to the build directory
2296        for preprocessing to avoid conflicts between different setups compiled
2297        simultaneously and simplify cleanup.
2298    o pkg/exf:
2299      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
2300        main model or other pkgs are exchanged in EXF_MAPFIELDS).
2301    o model/src:
2302      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
2303        (similar to do_fields_blocking_exchanges.F).
2304    o tools/genmake2:
2305      - remove TAF output src code just before calling staf (when not doing a fresh
2306        built, will stop if things go wrong with staf).
2307      - fix target "adobj" (left from TAF version-2 transition)
2308    o pkg/diagnostics:
2309      - add a parameter to track the status of pkg/diagnostics activation;
2310        this replace/extend the use of logical param "settingDiags" (to check
2311        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
2312        New S/R to print error message and stop when pkgStatus is not right.
2313      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
2314    
2315    checkpoint64m (2013/08/13)
2316    o model/inc:
2317      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
2318        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
2319    o pkg/kpp & aim_v23:
2320      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
2321    o pkg/seaice:
2322      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
2323        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
2324      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
2325    o eesupp/src:
2326      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
2327        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
2328    o switch to TAF version-2:
2329      - add flow directives to "freeze" naming convention for ad-routines that
2330        are used in I/O routines of adjoint state and associated common blocks
2331        that are used in adcommon.h (backward compatible with version-1)
2332      - update all ad-optfiles (in tools/adjoint_options + few local to some
2333        verification exp) to switch to latest TAF version (currently 2.5.5);
2334        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
2335        out except for diva).
2336      - the major change with TAF version-2 is that both the differentiated
2337        routines and the forward routines (new) are returned as part of the TAF
2338        output source code. Update genmake2 accordingly.
2339      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
2340        with version-2 when compared to TLM or FWD gradient); other experiments
2341        output show minor changes (machine truncation level); update the few AD &
2342        TLM output with 12 matching digits only (some prior to version-2 switch).
2343    
2344    checkpoint64l (2013/08/05)
2345    o model/src:
2346      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
2347      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
2348        when using TAF but only if using OpenAD.
2349    o pkg/mom_common+fluxform+vecinv:
2350      - always set horiz. viscosity arrays to background value before calling
2351        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
2352        only when using variable horiz. viscosity (useVariableVisc=T);
2353      - simplify mom_vecinv.F (only 1 block for momViscosity).
2354    o pkg/mom_common: variable horiz. viscosity in NH code
2355      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
2356        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
2357      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
2358        useBiharmonicVisc & useVariableVisc.
2359      - fix old bug (already in 1rst implementation of variable horizontal viscosity
2360        in calc_gw.F, version 1.27, 2006/06/20):
2361        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
2362        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
2363      - change background horiz viscosity in vertical momentum (gW) to always be
2364        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
2365        any type of variable viscosity, e.g., viscAh/4Grid)
2366      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
2367        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
2368        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
2369        default viscAh,viscA4 is zero).
2370    o model/src:
2371      - extend length of drC & recip_drC from Nr to Nr+1.
2372    o Divided Adjoint (DIVA) with MPI:
2373      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
2374      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
2375        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
2376    
2377    checkpoint64k (2013/07/23)
2378    o tools/OAD_support:
2379      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
2380        and remove it from genmake2.
2381    o tools/build_options:
2382      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
2383        MPI_HEADER_FILES list (let genmake2 find the missing headers)
2384    o verification/halfpipe_streamice:
2385      - change to driving stress formulation; update both Fwd & AD output.
2386    o tools/genmake2 and Divided Adjoint with MPI:
2387      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
2388      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
2389      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
2390        Makefile, which is set by genmake2, and check which mpi-headers are needed.
2391        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
2392      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
2393    o testreport:
2394      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
2395        perform additional runs (number of additional runs is "add_DIVA_runs" taken
2396        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
2397    o verification/lab_sea (AD test):
2398      - change to test Divided Adjoint Run in this set-up (both standard AD test
2399        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
2400    o pkg atm_ & ocn_compon_interf:
2401      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
2402        staggerTimeStep implementation) and disable (retired) corresponding
2403        parameter.
2404    o pkg/offline:
2405      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
2406      - add S/R OFFLINE_CHECK to print offline parameter summary
2407        and stop if loading a file that is not used;
2408      - enable to calculate GMRedi tensor, KPP mixing and convective index
2409        when the corresponding file(s) is/are not specified (but pkg is used).
2410      - comment out resetting of monitorFreq (to endTime) since it still useful
2411        for monitoring CFL numbers and checking offline fields.
2412    o OpenAD:
2413      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
2414        smaller standard output) and generate new (smaller) output (on baudelaire
2415        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
2416    o model/src:
2417      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
2418        (where external_forcing_adjust was called) and change list of arguments;
2419      - merge external_forcing_adjust.F into external_forcing_surf.F
2420      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
2421        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
2422        previously in file "balance_relax.F", now removed); remove corresponding
2423        arrays in FFIELDS.h.
2424      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
2425        a hack for getting back surfaceForcingS (loaded from file) when using
2426        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
2427      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
2428        (was getting only 11 digits for AD-grad, due to different truncation
2429         error in AD code).
2430    
2431    checkpoint64j (2013/07/04)
2432    o pkg/offline:
2433      - to enable the use of other features with pkg offline (e.g., obcs),
2434        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
2435      - comment out "allowFreezing" (now active) in 2 offline testing exp.
2436  o pkg/exf ALLOW_RUNOFTEMP  o pkg/exf ALLOW_RUNOFTEMP
2437    - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL    - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
2438    - added RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice    - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
2439    - changes verification/global_ocean.cs32x15/results/output.seaice.txt    - changes verification/global_ocean.cs32x15/results/output.seaice.txt
2440  o pkg/atm_phys:  o pkg/atm_phys:
2441    - allows to add some damping on uVel,vVel (strength only function of k).    - allows to add some damping on uVel,vVel (strength only function of k).

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