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revision 1.1994 by mlosch, Mon May 12 14:15:52 2014 UTC revision 1.2331 by jmc, Fri May 12 00:10:25 2017 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  o pkg/seaice/seaice_do_ridging.F: clean up the insectarium  o pkf/exf:
8      - add a stop if useRelativeWind with un-updated uwind/vwind (e.g., constant);
9        similarly, stop if rotateStressOnAgrid with constant wind-stress.
10    o pkg/seaice:
11      - remove (comment out) diagnostics SIuwind,SIvwind,SIfu,SIfv (duplicate of
12        EXFuwind,EXFvwind,oceTAUX,oceTAUY) and point them to their equivalent.
13      - add diagnostics of wind-stress over seaice (SItaux,SItauy) and seaice
14        fraction weighted wind stress over ocean+seaice (SIatmTx,SIatmTy).
15    o pkg/diagnostics:
16      - small piece of code to rename (old) diagnostics, when namelist is processed.
17    o model/src:
18      - new run-time param (useMin4hFacEdges) to select method for setting hFacW,S:
19        originally, set as minimum of adjacent hFacC factor ; now (new default)
20        computed from rSurfW,S and rLowW,S by applying same rules as for hFacC.
21        Only matters when useShelfIce=T with particular ice-shelf cavity geometry.
22    o pkg/seaice:
23      - add momemtum advection, off by default, still in test phase
24        most of the momentum advection code is adapted and reused from mom_vecinv
25    o pkg/mom_vecinv:
26      - pass these runtime flags:
27        selectVortScheme, highOrderVorticity, upwindVorticity, useJamartMomAdv
28        as formal parameters to s/r mom_vi_u/v_coriolis, mom_vi_u/v_coriolis_c4,
29        so that these routines can also be used in pkg/seaice.
30    
31    checkpoint66g (2017/04/24)
32    o model/src:
33      - more robust ordering of column thickness integral (=Sum_k(drF*hFac) )
34        to get same expression (regarding machine truncation) in different places
35        in ini_masks_etc.F (e.g., rSurfC,W,S is now exactly zero when it should).
36        Update forward output of experiments: global_ocean.cs32x15 (all 5 except
37        viscA4), isomip (x3), tutorial_global_oce_in_p & tutorial_plume_on_slope.
38    o pkg/shelfice:
39      - ALLOW_SHIFWFLX_CONTROL: move setting of maskSHI from shelfice_update_masks.F
40        to shelfice_init_fixed.F
41      - change S/R SHELFICE_UPDATE_MASKS to SHELFICE_INIT_DEPTHS (still called from
42        ini_masks_etc.F for now) to update ocean upper boundary position according
43        to ice-shelf topography (instead of directly updating hFacC).
44    o model/src:
45      - move call to CTRL_INIT & CTRL_ADMTLM from the middle to the bottom of
46        packages_init_fixed.F to allow other pkgs to set mask and weight fields.
47    
48    checkpoint66f (2017/04/06)
49    o model/src:
50      - add specific run-time param to select level of printed plot-field-maps,
51        set by default to debugLevel. Remove internal param "printDomain".
52    o pkg/seaice:
53      - add flag to add snow mass to seaiceMassC/U/V, the default is
54        SEAICEaddSnowMass=.FALSE., not to change previous results
55    o pkg/bling
56      - Bug fix in bling_production regarding unit conversion for diagnostics
57        being put in the wrong place
58    o model/src:
59      - add back recomputation of rSurfW & S to ensure consistent column thickness
60        (needed for rStar) between Sum_k(hFac*drF) and rSurf-rLow, for now only
61        when using pkg/shelfice; was initially added on 2012/06/01 (ini_masks_etc.F
62        revision 1.51) but was removed accidentally on 2014/02/08 (v1.53).
63    o pkg/autodiff:
64      - clean-up "checkpoint.flow"
65    o pkg/rw (Contribution from Jody Klymak):
66        option to set mds file suffix as function of time in simulation:
67        *) new input parameter "rwSuffixType" (read from PARM03 namelist)
68           to select file suffix format; by default (=0), use iteration number;
69        *) add simple routine to return file suffix according to rwSuffixType;
70        *) in model/src and in most pkgs (except: atm2d, fizhi, regrid & streamice),
71           use new S/R to get file suffix, except for debug output file (diagFreq)
72           and pkgs offline & rbcs input files.
73    o pkg/rw:
74      - uniform processing of "I10" suffix across writing fld routines; used to
75        simplify debug writing of cg2/3d_b/x in solve_for_pressure.F & post_cg3d.F
76        (similar to cg3d.F, cg3d_ex0.F)
77    o pkg/mom_vecinv:
78      - highOrderVorticity in selectVortScheme=2 case: fix c4 coeff in splitted
79        vorticity flux (keep same sum in case vBarXm=vBaXp, uBarYm=uBarYp).
80    o pkg/bling:
81      - Many small changes intended to clean the code.
82        Unnecessary ADJOINT_SAFEs removed ;
83        removed BLING_COST.h BLING_CTRL.h bling_cost.F ;
84        diagnostics added.
85    
86    checkpoint66e (2017/03/14)
87    o pkg/exf:
88      - interpolation with #undef EXF_INTERP_USE_DYNALLOC: move buffer size
89        definition outside EXF_PARAM.h in new header file: EXF_INTERP_SIZE.h;
90        use fixed size buffer (passed to S/R EXF_INTERP & EXF_INTERP_UV) to
91        avoid any dynamic allocation ;
92      - S/R EXF_CHECK: add new check & stop when file-name is defined but not
93        read-in ; add warning when file is read-in but not used within pkg/exf ;
94        + check for buffer-size (if #undef EXF_INTERP_USE_DYNALLOC).
95      - update exf_summary.F (print {FLD}RepCycle).
96    o verification/global_with_exf:
97      - switch on exf interpolation in AD test (just like the forward test)
98    o pkg/mom_vecinv:
99      - add storage directives to avoid recomputations within mom_vecinv.F
100        which were generating seg. fault with gfortran -devel
101    o pkg/ctrl, pkg/smooth:
102      - initialize array halos which were generating seg. fault with
103        gfortran -devel in adjoint mode
104    o pkg/exf:
105      - for each input field, enable to specify a field specific repeat-cycle
106        ({FLD}RepCycle) which defaults to pkg/exf main "repeatPeriod".
107    o verification/lab_sea:
108      - update AD results of primary test and noseaicedyn test after switching
109        to new version of TAF (5.3.13 vs 5.3.2 before); agreement with gradient
110        check stays about the same.
111    o pkg/exf:
112      - fix bug in exf_zenithangle.F for cases select_ZenAlbedo > 0 with useCAL=T.
113      - exf_check: MAX_LAT_INC need only be "loc_nlat-1", not equal to loc_nlat
114    o pkg/bling, USE_EXFCO2 code:
115      - add parameter "apco2RepCycle" (set to pkg/exf "repeatPeriod" by default);
116      - update calls to EXF S/R (use new version: EXF_INIT_FLD & EXF_SET_FLD).
117    o pkg/exf:
118      - rename S/R EXF_INIT to EXF_INIT_VARIA ;
119      - add arguments: fldName (for debug msg) and fldRepeatCycle (set to
120        repeatPeriod) to S/R EXF_SET_UV and to S/R EXF_SET_GEN (renamed EXF_SET_FLD)
121        and update calls in pkg/exf calling S/R (exf_getffields.F & exf_getclim.F) ;
122      - add argument: fldName (for debug msg) to S/R EXF_INIT_GEN (renamed
123        EXF_INIT_FLD) and update calls in exf_init_varia.F
124      - For now, for backward compatibility, keep a simplified version of S/Rs
125        EXF_SET_GEN & EXF_INIT_GEN in file exf_set_gen.F
126      - add and pass new arguments: fldName (for debug msg) and fldRepeatCycle
127        to S/R EXF_GetFFieldRec ; update calls in pkg/obcs/obcs_exf_load.F
128    o tools/genmake2:
129      - replace "bc -l" (only used once) by "expr" (already used).
130    o verification/global_ocean.cs32x15:
131      - turn off pkg/cal (useCAL=F) in secondary FWD exp. "icedyn".
132        Note: exf setting (data.exf) can be compared to other exf secondary exp
133        "seaice" (kept with useCAL=T) which has same time dependent forcing.
134    
135    checkpoint66d (2017/02/13)
136    o pkg/exf:
137      - remove setting of useCAL=T when using pkg/exf (useEXF=T); add warning
138        early on (in packages_boot.F) to stress this change in pkg setting.
139      - In (most) verification exp. that use pkg/exf, add useCAL=.TRUE. to data.pkg
140    o model/src:
141      - move call to ecco_phys to end of time step; this may induce minor
142        cost function changes by shifting time averages by one time step
143        for some variables; this revision resulted in changed adjoint results
144        in MITgcm_contrib/verification_other/global_oce_cs32
145    o pkg/exf:
146      - Change EXF_READ_EVAP to only activate code within #ifdef ALLOW_ATM_TEMP ;
147        this prevents to read evap when ALLOW_ATM_TEMP is undef and other fields,
148        e.g. precip, are not available.
149    o pkg/flt:
150      - flt_init_varia.F: use pickupSuff if specified
151      - add code (within #ifdef DEVEL_FLT_EXCH2) and test case as a first,
152        intermediate, step towards completing pkg/exch2 support within pkg/flt;
153        ifdef DEVEL_FLT_EXCH2 then:
154        - flt_init_fixed.F: comment out stop
155        - flt_exch2.F: conserve ipart, jpart (grid coordinates)
156        - exch2_recv_get_vec.F: transform ipart, jpart (grid coordinates)
157        - flt_mapping.F: attempt to fix longitude diagnostic near date-line
158        - flt_init_varia.F: hack initialization (for testing purposes w. LLC90)
159    o tools/genmake2 & pkg/pkg_depend:
160      - define new type of pkg dependency rule ("=pkg_x"), less strict than
161        the "+" rule, that add the dependent pkg (pkg_x) unless it's disabled
162        (-pkg_x in packages.conf).
163      - change pkg/exf dependency rule from "exf +cal" to "exf =cal";
164      - add "+cal" to dependency list of pkg/ecco (needed to compile).
165      - simplify FWD experiment "offline_exf_seaice" by removing pkg/cal.
166    o utils/matlab:
167      - adding ocean_basin routines for defining basin masks.
168    o pkg/exf:
169      - new S/R EXF_GETFFIELD_START replacing EXF_GETFIELD_START, but with more
170        arguments, allowing to check (and stop) if parameter setting of
171         {FLD}startdate1 & date2 and of {FLD}StartTime are consistent with
172        useCAL= T or F. For now, kept a simplified version of EXF_GETFIELD_START
173        for backward compatibility.
174      - change accordingly calls in exf_init_fixed.F + default {FLD}StartTime in
175        exf_readparms.F ; apply same changes to pkg/icefront (for SGRunOff field).
176    o pkg/bling (USE_EXFCO2 code):
177      - fix missing setting of apco2StartTime according to apco2startdate1 & date2
178        by adding a call to S/R EXF_GETFFIELD_START.
179    o pkg/exf:
180      - allows to compile without pkg/cal (but disabled by current dependency
181        rules, i.e., default "pkg/pkg_depend"). Minimal changes to enable to
182        run with useCAL=F ; this involves setting directly {FLD}StartTime instead
183        of {FLD}startdate1 & date2 ; consistency check not yet coded.
184    o verification/global_ocean.cs32x15:
185      - fix all data.exf for a shift of 1 day in all field startdate1 so that it now
186        corresponds to middle of 1rst month; update outputs (2 fwd + 3 adm + 3 tlm).
187    o pkg/exf:
188      - allow to use EXF_ZENITHANGLE without pkg/cal + simplify (saving some
189        calculations); change FWD experiment global_ocean.cs32x15
190        (#define ALLOW_ZENITHANGLE) to test/check that this code compiles.
191    o pkg/exf:
192      - In preparation for addition to NAMELIST, rename internal (_RL) parameter
193         {FIELD}startdate to {FIELD}StartTime
194        Note: new name also fit better the content, i.e, a start time in second.
195    o eesupp/src:
196      - add 1 argument to S/R EEBOOT & EEBOOT_MINIMAL for interface with ESMF
197    o pkg/exf:
198      - add option ALLOW_READ_TURBFLUXES (and corresponding set of parameters)
199        to allow to read-in Sensible & Latent Heat flux ;
200      - simplify pkg/exf main options:
201        1) move small piece of code (case ALLOW_ATM_TEMP undef) out of
202           exf_bulkformulae.F into exf_wind.F so that exf_bulkformulae.F is
203           compiled only when both ALLOW_ATM_TEMP & ALLOW_BULKFORMULAE are defined;
204        2) make call to EXF_RADIATION and to EXF_WIND independent of CPP option
205           ALLOW_BULKFORMULAE which now only applies to S/R EXF_BULKFORMULAE ;
206        3) improve options documentation in EXF_OPTIONS.h.
207    o pkg/ecco:
208      - cost_gencost_customize.F,ecco.h,ecco_phys.F,ecco_readparms.F, and
209        ecco_summary.F: add passive tracer cost functions to gencost;
210        m_ptracer and m_boxmean_ptracer
211    o pkg/ctrl:
212      - ctrl_map_forcing.F: pass myIter and myTime to ctrl_map_forcing as input
213        parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing; add to list
214        of implemented gentim2d contol parameters: xx_qnet, xx_empmr, xx_qsw,
215        xx_sst, xx_sss, xx_pload, xx_saltflux, xx_fu, xx_fv, xx_fe, xx_fn
216    o model/src:
217      - forward_step.F: pass myIter and myTime to ctrl_map_forcing as input
218        parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing
219    o pkg/exf:
220      - exf_getffields.F: add to list of implemented gentim2d contol parameters:
221        xx_lwflux, xx_swflux, xx_evap, xx_apressure, xx_areamask
222    
223    checkpoint66c (2017/01/19)
224    o verification:
225      - add new option "-src" to testreport to only produce source code (*.f),
226        including taf output src code (if using '-adm'/'-tlm' option).
227    o pkg/exf:
228      - add saltflx :: Net upward salt flux in psu.kg/m^2/s
229    o pkg/diagnostics:
230      - add run-time variable diagMdsDir to specify a subdirectory for
231        diagnostic output when mds is being used and mdsioLocalDir is not.
232    o pkg/mnc:
233      - mnc_utils.F: edit stop message
234    o pkg/autodiff:
235      - autodiff_ini_model_io.F: PRINT_MESSAGE, clean-up comments, add _*_MASTER,
236        add HAVE_SYSTEM bracket around system call to mkdir
237    o pkg/profiles:
238      - profiles_findunit.F, profiles_init_fixed.F, profiles_interp.F,
239        profiles_readparms.F: call ALL_PROC_DIE before 'stop'
240      - profiles_ini_io.F: use PRINT_MESSAGE, clean-up comments, add _*_MASTER,
241        add HAVE_SYSTEM bracket around system call to mkdir
242    o pkg/smooth:
243      - smooth_filtervar2d.F, smooth_filtervar3d.F: call ALL_PROC_DIE before 'stop'
244      - smooth_init2d.F, smooth_init3d.F: move print statements to readparms
245      - smooth_readparms.F: add cleaner print statements from smooth_init?d.F
246    o pkg/exf:
247      - check: count errors and stop cleanly at the end (call to ALL_PROC_DIE);
248        issue error message when climsst_interpMethod.GT.0 and climsst_lon_inc > 500
249        generalize tests on interpMethod, nlat, and lon_inc to all exf variables.
250      - summary: skip detailed field report if not used (empty file-name).
251    o tools/xmakedepend:
252      - In case line editor "ed" is missing, switch to "sed" command to clean-up
253        Makefile from previous dependencies (anything after "# DO NOT DELETE" line).
254    o pkg/exf:
255      - change definition of "hflux" input file to always include Short-Wave;
256        this is now consistent with hflux computation (if using bulk-formulae)
257        and hflux diagnostic & documentation (in EXF_FIELDS.h).
258    
259    checkpoint66b (2016/12/01)
260    o model & momentum pkgs:
261      - implement fully implicit bottom friction combined with implicit surf.
262        pressure, for now, only in hydrostic formulation:
263        + to use: compile with #define ALLOW_SOLVE4_PS_AND_DRAG in CPP_OPTIONS.h
264          and run with selectImplicitDrag=2 ;
265        + currently missing diagnostics of bottom drag and vert. viscosity tendency;
266      - partial implicit time-stepping (bot. friction + vert. visc first, then
267        surf. press) corresponding to selectImplicitDrag=1 should be applicable
268        to NH formulation but not available until we solve for surf. pressure
269        increment (instead of full etaN).
270      - change exp. global_ocean.cs32x15.thsice to test implicit bottom drag
271        with implicit vertical viscosity.
272    o pkg/seaice: add linear remapping scheme (Lipscomb 2001) to ITD model
273      - this is a first version that includes many regularisations that may
274        not all be necessary, to be sorted out,
275      - turned on by runtime parameter SEAICEuseLinRemapITD (true by default)
276      - change one verification experiment in seaice_itd to use and test new code
277      - seaice_growth: catch a case where the argument of log can be zero
278        or smaller (important for code stability)
279    o model/src:
280      - modify SOLVE_DIAGONAL_LOWMEMORY version of solve_tridiagonal.F
281        & solve_pentadiagonal.F to enable to re-used inverse matrix for solving
282        similar A.X'=Y' system (with same matrix A) in subsequent calls;
283        switch based on errCode (In/Out) argument value; in calling routines,
284        initialise errCode before first call.
285    
286    checkpoint66a (2016/10/18)
287    o pkg/bling:
288      - BLING package now loads in atmospheric pCO2 file using exf package routines
289        Enable with #define USE_EXFCO2 in BLING_OPTIONS.h
290    o model/src & pkg/ptracers:
291      - with INCLUDE_IMPLVERTADV_CODE defined, also call MOM_U,V_IMPLICIT_R &
292        GAD_IMPLICIT_R (instead of IMPLDIFF) when just implicitViscosity and
293        implicitDiffusion (respectively) are used (even without momImplVertAdv
294        or temp,salt,PTRACERS_ImplVertAdv).
295    o model/src & generic_advdiff:
296      - add parenthesis in main diagonal calculation of implicit vertical
297        diffusion matrix (impldiff.F & gad_implicit_r.F).
298        This affects results at machine truncation level; update output of many
299        verification experiments (31 fwd ; 10 adm ; 8 tlm ; 3 oad).
300    o pkg/mom_commom & generic_advdiff:
301      - add deep atmosphere and anelastic scaling factor in implicit vertical
302        advection routines (mom_u,v_implicit_r.F & gad*_impl*_r.F).
303    o model/src:
304      - remove few unnecessary temp array copies in solve_tridiagonal.F
305        & solve_pentadiagonal.F
306    
307    checkpoint65z (2016/09/28)
308    o pkg/seaice: fix multithreading for seaice_fgmres.F
309      - remove unecessary variables from common blocks
310      - use extra dimension MAX_NO_THREADS for all variables of the Krylov space
311        basis, that are stored in commom blocks (including integer variable i1)
312      - clean up code a little by removing commented lines that refer to
313        original code
314      - turn on multi-threaded test for experiment offline_exf_seaice.dyn_jfnk.
315    o MITgcm manual:
316      - add uptodate pkg/ecco documentation to the manual (section 8.1; ecco.tex),
317        preliminary documentation for generic controls (8.3; ctrl.tex),
318        a placeholder for smooth (8.4; smooth.tex), and comment out the deprecated
319        ecco_costfunction.tex
320    o pkg/ecco:
321      - update and cleanup list of CCP options
322      - re-assign gencost_mask to specify masks rather than gencost_errfile; 'c'
323        is now always passed to cost_generic; gencost_mask is now MAX_LEN_FNAM
324      - add checks that retired run-time options are not used, and in relation
325        to gencost_mask and gencost_errfile
326      - finish deprecating gencost_scalefile, gencost_smooth2Ddiffnbt, and
327        gencost_nrecperiod
328      - fix m_eta computation for virtual salt flux case
329      - add m_horflux_vol case (selected via gencost_barfile) that computes
330        transports via cost_gencost_boxmean (gencost_flag=-3)
331      - use gencost_flag more systematically (i.e., avoid using gencost_name)
332        for code switches (aside from physical variable selection)
333    o pkg/seaice: make seaice_fgmres.F fit for multithreading; this first
334      attempt appears to be a bit of a hack and my need some repair down the road
335    o pkg/exf:
336      - interpolation near South Pole: fix criteria on input field latitude.
337    o pkg/icefront & pkg/exf:
338      - move setting of icefront Sub-Glacial RunOff forcing (currently unused)
339        from pkg/exf (read from data.exf) to pkg/icefront (read from data.icefront)
340    o pkg/exf:
341      - replace CPP option ALLOW_EXF_OUTPUT_INTERP with run-time parameter
342        "exf_output_interp" (in namelist: EXF_NML_04); change output file name
343        (add suffix "_out" instead of a prefix); keep same record number as in
344        input file but always write record 1 first (to avoid a STOP in I/O S/R).
345        Change output file content by writing interpolated field before applying
346        land-sea mask (helpful for debug).
347      - 2 compon. vector interpolation with rotation: apply scaling factor on
348        each compon. (Eastward and Northward) just before rotation.
349    o pkg/bling:
350      - Cleaned package. Removed not needed code and comments.
351      - adjoint example now works
352        (MITgcm_contrib/verification_other/global_oce_biogeo_bling/code_ad)
353    o pkg/ptracers:
354      - add Bruno Deremble's code to complete the linear surface correction
355        for tracer conservation;
356      - enabled for individual ptracers by PTRACERS_linFSConserve(iTr)=.TRUE.
357    
358    checkpoint65y (2016/07/29)
359    o pkg/debug (stats):
360      - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
361        proc/thread mapping);
362      - fix Min & Max for case where 1 thread has only empty tiles;
363      - use RL variable to count number of wet grid points (with big domain,
364        can be too large to fit into integer*4).
365    o pkg/monitor:
366      - use RL variable to count number of wet grid points (but used only for del2)
367      - add new routine to compute Advective CFL within tracer time-stepping with
368        writing delayed until next monitor output.
369    o pkg/obcs:
370      - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
371    o pkg/cal:
372      - calandar-dump: treat case myTime < timePhase in the same way as in
373        eesupp/src/diff_phase_multiple.F (when not using calandar-dump).
374    o pkg/dic & seaice:
375      - fix compilation of ocean component for coupled atm+ocn model with
376        seaice dynamics & dic.
377    
378    checkpoint65x (2016/06/11)
379    o add a license text file in main MITgcm tree.
380    o added pkg/bling:
381      - intermediate complexity biogeochemical model
382      - see bling_description.txt for details
383      - verification experiment is global_oce_biogeo_bling (for now, in
384        Contrib/verification_other/); tested daily on baudelaire with gfortran.
385      - add entry point in pkg/gchem for new pkg "bling".
386    o pkg/seaice: fix tensile stength computation
387      - replace global field tensileStrength by tensileStrFac
388      - tensileStrFac can be computed once in S/R seaice_init_varia
389      - fortunately that does not affect any verification results
390    
391    checkpoint65w (2016/05/12)
392    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
393         with ECCO_CTRL_DEPRECATED defined
394    o verification/global_ocean.cs32x15:
395      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
396        with "selectNHfreeSurf=1".
397    o model/src (non-hydrostatic free-surface):
398      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
399        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
400      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
401        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
402        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
403        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
404      - Update output (changes at machine truncation level) of verification exp:
405        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
406        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
407    o pkg/seaice: ITD code
408      - fix picking up from a single category model by initialising
409        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
410      - split a long warning message in seaice_check_pickup.F into two lines,
411        because NEC SX-ACE cannot deal with the long line.
412    o model/src:
413      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
414    o pkg/seaice:
415      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
416    o pkg/seaice:
417      - add basal stress as parameterisation for grounding ice
418        following Lemieux et al. (2015)
419      - turn on by setting new parameter SEAICEbasalDragK2 to a value
420        larger than 0. Lemieux et al. (2015) recommend 15.
421      - The adjoint complains with extra recomputations so there is also a
422        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
423        order to postpone the problem
424      - compile the new code in lab_sea
425    o verification/halfpipe_streamice:
426      - update both TAF and OpenAD adm output (machine truncation differences)
427    
428    checkpoint65v (2016/04/08)
429    o verification/advect_xz:
430      - increase overlap size from 3 to 4 and add new secondary test for PQM
431        advection scheme (with mono & wino limiter).
432      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
433    o model/src:
434      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
435        added phi0Ref) to set vertical axis origin and phiRef origin;
436        keep Ro_SeaLevel for backward compatibility (with a warning).
437       According to coordinate and fluid type:
438        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
439        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
440        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
441        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
442      - remove Ro_SeaLevel from ATM experiment parameter files;
443      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
444        complement; update output.txt (changes at machine truncation level).
445    o pkg/seaice/seaice_evp.F
446      - simplify computation of deltaZ and zetaZ to simple averaging following
447        Bouillon et al. (2013). This removes a lot of code, but also changes
448        verification experiment lab_sea.hb87 -> updated
449    
450    checkpoint65u (2016/03/14)
451    o pkg/generic_advdiff:
452      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
453        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
454        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
455        testing and not for actual use.
456    o model/src:
457      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
458        origin r = rF(1);
459      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
460        in EOS for height coordinate: enable to include NH Pressure or to use
461        more accurate pressure vertical profile; options not linked to EOS type
462        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
463      - start to implement variable gravity (along vertical): for now, only with
464        z-coords (not even z*).
465      - add Ideal Gas equation of state for height coordinate.
466      - update OpenAD output (affected at machine truncation level) of exp:
467        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
468    o pkg/exf:
469      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
470        of exf interpolation (before any rescaling, rotation or interpolation
471        to velocity point) for each field that gets loaded from file. This option
472        identically mimics the input file organization (e.g. record numbers in year
473        by year input files) besides the change in horizontal grid.
474      - add rotateStressOnAgrid run-time switch so that wind stress fields
475        can be provided on the A-grid in zonal/meridional direction and
476        rotated on the fly. This only applies to the case when the exf
477        interpolation is off and rotateStressOnAgrid is false by default.
478    o model/src:
479      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
480        it's also used with pkg/atm_phys) and add few more parameters (but still
481        inactive, src code yet to come)
482    
483    checkpoint65t (2016/02/10)
484    o pkg/atm_phys:
485      - from Ruth Geen: add optical depth dependence on CO2 concentration.
486    o model/src:
487      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
488        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
489        Update output of exp. deep_anelastic (changes at truncation level).
490    o tools:
491      - add a hack in "remove_comments_sed" (used only with TAF) for recent
492        version of OpenMPI (shipped with FC.23): comment out the new header
493        file "mpif-sizeof.h" which causes problems to TAF.
494    o pkg/seaice:
495      - change the termination criterion so that maxits (SEAICElinearIterMax)
496        has an effect
497      - unify iteration parameters for implicit solvers (JFNK and Picard)
498        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
499        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
500        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
501        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
502        SEAICEnonLinTol     replaces JFNKgamma_nonlin
503      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
504      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
505        use with SEAICEuseKrylov
506    o pkg/seaice/seaice_lsr.F
507        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
508        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
509        an effect.
510    o pkg/seaice: add two new parameters
511      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
512        parameter is not in any namelist)
513      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
514        a preconditioner for the non-linear Newton iteration of the JFNK
515        solver
516    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
517      affects some experiments at truncation level:
518      - global_ocean.cs32x15.icedyn (11 digits),
519      - global_ocean.cs32x15.seaice (11 digits),
520      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
521      - also update global_ocean.cs32x15 adjoint and tangent-linear results
522    o pkg/salt_plume & pkg/thsice:
523      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
524        connect salt_plume flux to ATM-OCN coupling pkgs interface:
525       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
526         export to coupler interface) even without compiling pkg/salt_plume ;
527       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
528         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
529    o pkg/dic:
530      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
531        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
532        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
533      - move also update with values from ATM-OCN Coupler in the same new S/R
534        (previously done in ocn_apply_import.F).
535    o tools/adjoint_options:
536      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
537        has been changed on Jan 14, 2016.
538    o pkg/ggl90:
539      - add alternative discretisation of vertical shear (off by default), to
540        compute the mean (@ grid-cell center) of vertical shear compon instead of
541        vertical shear of mean flow (@ grid-cell center).
542      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
543        results on adjacent faces of cubed-sphere grids; this fix the restart.
544    o pkg/atm_compon_interf:
545      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
546        pass last value, stored directly before export to CPL ;
547        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
548      - remove atmSLPr from pickup files (no longer needed for restart)
549    
550    checkpoint65s (2016/01/13)
551    o eesupp & genmake2:
552       - first check for Function ETIME and, if it fails, then check for subroutine
553         ETIME and consistent output; use the appropriate version in timers.F
554    o model/src:
555      - to check restart test, add option to apply EXCH to U,V earlier, just before
556        integr_continuity; turned off by default.
557    o pkg/dic:
558      - remove CPP option USE_ATMOSCO2 (not needed)
559    o tools/tst_2+2:
560      - try to ignore difference between +0 and -0 in binary file, causing test
561        to fail for no good reason.
562    o eesupp & genmake2:
563      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
564        but also check (in genmake2) that test runs and returns meaningful results.
565    o coupler pkgs:
566      Finish implementation of optionally-exchanged variable switches (started on
567       Nov 12) with addition of few more exchanged fields, including 2-way exchange
568       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
569       advection in OCN component; this requires sequential coupling.
570      coupler (pkg/atm_ocn_coupler):
571      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
572        routines (useful for debug).
573      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
574         flux, DIC fields) if corresponding switch is ON.
575      - add option to export RunOff to OCN (to use for DIC river input)
576      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
577      components (pkg/atm_ & ocn_compon_interf):
578      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
579        optionally exchanged fields; add a check & stop in cpl_readparms.F.
580        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
581        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
582      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
583        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
584      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
585      - hold in common block coupler optionally-exchanged variable switch
586        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
587      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
588        this is intended to replace the OCN cplFldtave.* output files (not updated
589        to contain new additional exchanged fields).
590    o pkg/dic:
591      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
592    o pkg/thsice:
593      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
594        and writing of thsice pickup files.
595    o pkg/atm_compon_interf:
596      - move all field individual export-call out of cpl_export_import_data.F
597        into new S/R ATM_EXPORT_FIELDS
598    o pkg/atm_compon_interf:
599      - store state variables (for now, only thSIce fields) just before beeing
600        exported (in cpl_export_import_data.F, like on ocean side) instead of from
601        atm_store_my_data.F like all exported fluxes.
602      - new version of pickup_cpl: write field names into meta file and read meta
603        file to find field postion in pickup. Also only write/read fields meeded for
604        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
605    o pkg/dic:
606      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
607    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
608        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
609        value can be from domain [0,1] to average between the two methods
610    o pkg/atm_phys:
611      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
612        hold fixed in time).
613    
614    checkpoint65r (2015/12/21)
615    o pkg/seaice:
616        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
617        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
618    o pkg/seaice:
619      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
620        when SEAICEscaleSurfStress=.TRUE.,
621      - apply areaW and areaS in S/R seaice_calc_lhs
622    o pkg/atm_phys:
623      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
624        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
625        for individual contribution (convection, LSC cond, radiation)
626      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
627        information); activated with: solar_exponent=0. and wv_exponent=-1.
628    o pkg/ggl90:
629      - within IDEMIX add upper limit for horizontal group velocity to
630        avoid instability problems in the explicit horizontal diffusion term for
631        long time steps or high resolution
632    o pkg/diagnostics:
633      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
634        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
635    o testreport:
636      - remove "-v" (verbose option) in default mpirun command.
637    o pkg/seaice/seaice_growth:
638      - catch potential division by zero in ITD code, does not change
639        verification results
640    o pkg/ecco:
641      - retire old codes to the Attic. The calls to retired functions are
642        left in a commented form in case they ever need to be re-activated.
643      - ecco_check.F: issue warning if any old CPP option is
644        defined that corresponds to retired codes -- then stop.
645    o pkg/atm_compon_interf:
646      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
647        coupler: use last time-step value instead of average over cplSendFrq_iter
648        time-step, similar to what is done for seaIceMass.
649        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
650    o eesupp & genmake2:
651      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
652        <= remove until a fix is found for some ifort version on ia32 machine.
653    o pkg/seaice/seaice_evp:
654      - refine residual computation
655    
656    checkpoint65q (2015/11/18)
657    o pkg/seaice/seaice_evp:
658      - fix residual computations so that they no longer affect the actual
659        simulation code
660      - fix seaice_readparams to be able to actually set new parameters
661        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
662    o model/src:
663      - fix wrong truncation (single prec) from "FLOAT" function in expressions
664        like: deltaT*FLOAT(myIter) when myIter is large:
665         a) replaced by DFLOAT (if not seen by TAF);
666         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
667    o pkg/aim_v23:
668      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
669        when pickupSuff is set ; do write rolling pickups + at the end of the run.
670    o pkg/atm_ocn_coupler + ocn_compon_interf:
671      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
672        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
673        add corresponding call in DO_OCEANIC_PHYS.
674    o coupler pkgs:
675      Start a new way to set-up optionally-exchanged variables (previously, only
676       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
677       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
678       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
679       compononent param default can be set accordingly).
680      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
681       but rather applies to a group a fields (going both ways like for DIC)
682       and corresponds to an option of coupling config.
683      coupler (pkg/atm_ocn_coupler):
684      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
685        and read namelist directly (without eessup S/R calls) instead of
686        in the very un-flexible old way, 1 param per line, in fixed order;
687      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
688        cleanly in CPL_CHECK_CPLCONFIG
689      - add new coupling-exchange selectors (some not yet active) including
690        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
691                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
692      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
693        component ; called directly from coupler.F, after comp. registrations;
694      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
695         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
696          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
697      components (pkg/atm_ & ocn_compon_interf):
698      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
699        CPP header file in all pkg source files.
700      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
701        ATM/OCN_CHECK_CPLCONFIG;
702      - add error-counter to track errors (e.g., in "data.cpl") and to stop
703        cleanly in ATM/OCN_CHECK_CPLCONFIG;
704      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
705        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
706        before PACKAGES_READPARMS;
707      verification/cpl_aim+ocn/:
708      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
709        "data.cpl" for coupler (in input_cpl).
710    o eesupp/inc:
711      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
712        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
713        to always cumulate tile local-sum in the same order (still uses
714        MPI_Allreduce like standard code).
715      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
716        that are now identical to standard version (in eesupp/inc).
717    o pkg/shelfice:
718      - add SHELFICETransCoeffTFile for initializing spatially varying
719        heat and salt transfer coefficients
720    o pkg/atm_compon_interf & ocn_compon_interf:
721      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
722        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
723      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
724    o pkg/atm_ocn_coupler:
725      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
726    o pkg/rbcs:
727      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
728        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
729      - add a short report (to STDOUT) about RBCS-mask settings.
730    
731    checkpoint65p (2015/10/23)
732    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
733        there is no adjoint test for EVP, we don't know what it does to the adjoint
734        solution, but at least there are no more recomputation warnings left
735    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
736        a chance of giving the same results as a fully converged VP (JFNK) solver
737    o tools/adjoint_options/adjoint_diva:
738      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
739    o pkg/streamice:
740      - spotted bug in streamice_driving_stress using dyG where should have been dxG
741    o pkg/exf:
742      - remove STOP statement that prevented to use wind or (wind-)stress
743        interpolation for constant-in-time forcing fields (wind/stress period = 0).
744    o pkg/seaice:
745      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
746        5 additionals 2D fields and 6 new store directives
747      - change logic in seaice_readparms.F: EVP code can now be turned on in
748        various ways, setting SEAICE_deltaTev is no longer required,
749        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
750        or SEAICEaEVPcoeff
751    o pkg/shelfice/shelfice_thermodynamics.F
752      - redefining uLoc/vLoc to u/v, instead of 2u/v
753    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
754      - this is an intermediate state of a truely converging EVP that has
755        the potential of outperforming implicit VP methods, I do not recommend
756        using it yet.
757      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
758        and all parameters are hardwired
759      - for convergence it still requires very smooth regularisations, that means,
760        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
761        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
762        specific averaging appears to be required, still subject to tuning
763      - still needs cleaning and I need to turn parameter into runtime parameters
764      - add code to compute and print residuals of iteration, compile with
765        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
766    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
767      that entered with r1.54 on Sep04, 2015, -> update results
768    
769    checkpoint65o (2015/09/14)
770    o pkg/mom_vecinv & mom_common:
771      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
772        called from there.
773      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
774        allows to use Vector-Invariant form in deep atmos and anelastic formulation
775    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
776      and Koenig-Beatty+Holland (2012)
777      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
778      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
779      - requires an extra input argument for S/R seaice_calc_viscosities
780      - tensileStrength's depth dependence is different from Itkin et al. (2015)
781        (to be changed and played with, for now exponential)
782    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
783      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
784        by AREA according to Connelly et al. (2004), JPO.
785      - For EVP and the LSR solver, the implicit part of the drag term is
786        the only non-zero term in the denominator when there is no ice (which
787        prevented running the model with zero ice-ocean drag). If
788        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
789        (or zero main diagonals BU/BV) which need to be caught. A practical
790        consequence is that for open water, the momentum equation reduce
791        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
792        they happen to be zero, often leading to a non-zero solution over
793        open water.
794    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
795        efficient EVP method.
796      - introduce area-weighted averages for e12 (analogously to
797        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
798        remain, but also changing the order of terms in the previous average
799        changed the results as much) -> update experiment
800      - add SEAICE_DELTA_SMOOTHREG code
801      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
802        TEM-code
803      - adjust loop bounds so that only required fields are computed
804      - add new averaging code for zetaZ/deltaZ (again similar to
805        seaice_calc_viscosities.F), inactive by default for now (will change
806        results again), but will replace old code eventually
807    o eesupp/src:
808      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
809        to always cumulate tile local-sum in the same order
810        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
811        Still uses MPI_Allreduce (like standard code) but on array of tiles
812        and should be faster than GLOBAL_SUM_SEND_RECV code.
813      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
814        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
815      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
816         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
817         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
818         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
819         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
820    
821    checkpoint65n (2015/07/29)
822    o pkg/thsice:
823      - add a warning when used with pkg/aim but without updating SST
824        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
825    o pkg/offline:
826      - change where Offline-Fields are loaded, from load_fields_driver.F to
827        directly within FORWARD_STEP, just after updating iter number and time;
828      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
829        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
830       These changes allow:
831        a) to recover exactly on-line results using deltaToffline=deltaTClock,
832        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
833        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
834        time-step, both with GM & KPP files and with recomputing these fields;
835        b) no needs to switch on staggerTimeStep anymore;
836        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
837      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
838    o pkg/offline:
839      - change (rarely used) offset-iteration parameter to an offset time (in s):
840        can easily recover previous offset-iter effect by setting offset-time
841        (offlineTimeOffset) to offset-iter x deltaToffline;
842      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
843        in KPP as part of surface buoyancy forcing) in offline run.
844      - fix ptracers KPP non-local term in the case where KPP is re-computed.
845    o OpenAD
846      - Adding preliminary ggl90 test to OpenAD verification.
847        Config. with ggl90 currently diverges after 64 time steps
848        so will need more work to become more stable
849      - Adding preliminary kpp test to OpenAD verification.
850        required small tweakes in kpp_routines.F
851      - Merge and update from Krishna Narayanan's contrib area:
852        * Add one variable for preliminary OpenAD DIVA
853        * Add replacement time-stepping for OpenAD DIVA
854        * genmake2 flag -diva (but only for OpenAD; preliminary)
855        * required modifs for OAD_support
856        successful preliminary test for tutorial_global_oce_biogeo/
857    o pkg/seaice:
858      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
859      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
860        delta with a smooth function in s/r seaice_calc_viscosity
861        (no effect on EVP)
862      - rename local suffix "sqr" into "sq" for more consistent variable names
863    o pkg/seaice:
864        add new parameter SEAICE_deltaMin that is used ***only***
865        for regularizing Delta (and nothing else, like the parameter
866        which is also used for all sorts of things SEAICE_EPS).
867        Defaults to SEAICE_EPS for backward compatibility only.
868    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
869        the wrong key by inialising it before use -> fixes a recomputation
870        problem but does not fix the gradient
871    o pkg/layers:
872      - move resetting of flux arrays to outside the iLa loop
873        (this caused layers_diapycnal to not work with more than one layer coord.)
874      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
875    o pkg/layers:
876      - remove from common block 3D layers fields (used to diagnose transport
877        in tracer coords) and declare them as local arrays in layers_calc.F
878    o pkg/seaice:
879      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
880        in lab_sea forward experiment (changes results -> updated)
881      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
882    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
883       computations; for SEAICE_VECTORIZE_LSR
884      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
885        sweep to the outside,
886      - remove store directives and add "CADJ loop sequential" directives
887        in analogy to model/src/solve_tridiagonal.F
888      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
889        boundaries to yield more readable code. This has also the charming side
890        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
891        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
892        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
893        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
894        an additional option)
895       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
896       but the adjoint gradients (which are affected by this change) still explode.
897    o coupler (atm & ocn _compon_interf):
898      - avoid using Exch2 IO mapping if not suitable.
899    
900    checkpoint65m (2015/06/15)
901    o pkg/layers:
902      - clean-up old parameters setting (from Sep 2012):
903        + remove old parameters setting from common block (declared locally);
904        + stop if any old parameter is mixed with new parameters;
905        + check for valid or consistent parameter setting (e.g., layers_name)
906      - check that layers_bounds for Pot.Density are in the right range;
907        this is supposed to catch un-updated setting after recently shifting
908        potential density field "prho" by -1000 (now in "sigma" scale).
909    o pkg/layers:
910      - Added missing call to layers_fill for keeping track of tottend in
911        pkg/diagnostics/diagnostics_fill_state.F
912    o pkg/layers:
913      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
914        of diapycnal fluxes
915    o pkg/layers:
916      - reverted changes to interpolation to previous treatment; there
917        was never actually a problem
918    o pkg/layers:
919      - fix interpolation of layers tracers in the presence of partial cells
920      - add lots of new functionality to compute water mass transformation
921        (enabled by CPP flag LAYERS_THERMODYNAMICS)
922      - add new calls from main code (diags_oceanic_surf_flux.F,
923        thermodynamics.F, impldiff.F) and gad to save the necessary fields
924        for layers_thermodynamics calculations
925    o pkg/ptracers:
926      - add capability of stepping a passive tracer forward without advection
927        by setting PTRACERS_advScheme to 0.
928    o pkg/diagnostics:
929      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
930    o pkg/layers:
931      - shift potential density field "prho" by -1000 for density layer averaging so
932        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
933        Note that density bin boundaries (layers_bounds in data.layers) have
934        to be set accordingly (i.e., shifted, in sigma scale).
935    o pkg/layers:
936      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
937      - fix calculation of layer non-weighted velocity and layer probability
938      - add diagnostics for pot.density used for layer averaging
939    o pkg/seaice:
940      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
941        positiveness, modify a few comments and improve variable names,
942      - the changed computation of deltaC affects most seaice-related
943        experiments at the truncation level.
944        seaice_itd.thermo is affected by far the most, with
945        only 7 digits of agreement remaining; update experiments.
946    
947    checkpoint65l (2015/05/04)
948    o pkg/shelfice:
949      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
950        factor drKp1 to zero where it is negative (ie. do not use
951        SHELFICEBoundaryLayer if hFacC>1)
952      - the same for factor drLoc in shelfice_forcing.F
953    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
954        with modules in ptracers, when using testreport option "-small_f"
955    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
956      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
957    o verification/testreport
958      - add new option -small_f
959        with this option testreport first makes the target small_f (*.f files)
960        before running make (all). This is useful for explicit inlining when
961        all sources need to be full available.
962    o pkg/exf/exf_interp.F:
963        remove previous changes related to reverse (decreasing) input grids latitude
964    
965    checkpoint65k (2015/04/01)
966    o pkg/ecco:
967        fix missing cosphi initialization; use eccoiter in place of optimcycle;
968        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
969        instead of active read/write
970    o pkg/ctrl:
971        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
972        instead of active read/write.
973    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
974        return if .NOT.useAUTODIFF
975    o pkg/seaice: add CPP brackets (cost function related).
976    o model/src:
977        add useAUTODIFF run time switch.
978    o pkg/exf/exf_interp.F:
979        add code to allow input grids with latitude starting in the north (i.e. when
980        j=1 corresponds to northern edge of field); modify global_with_exf to test
981        this feature.
982    o verification/testreport:
983      - replace "grep -A3" with POSIX conformal sed command, because there are
984        implementations of grep that cannot do contextual searches
985      - replace "cat -n" by "nl" (two occurrences), because not all implementations
986        of "cat" have the option "-n"
987    o model/src:
988        add new file gsw_teos10.F that contains 3 functions, more or less a copy
989        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
990        convert from conservative to potential temperature. For now they are not
991        called anywhere.
992    o pkg/ggl90: make "useIDEMIX" useful
993      - re-organize code in s/r ggl90_calc a little to move computations that
994        are different for idemix into separate loops (changes verification
995        experiment idemix at truncation level, 12 digits remain -> updated)
996      - requires 2 new 2D fields KappaM, verticalShear
997      - make hFacI and recip_hFacI local 3D variables that are passed to
998        s/r ggl90_idemix
999      - fix and improve some comments
1000    
1001    checkpoint65j (2015/02/25)
1002    o pkg/openad
1003      - synchronize seawater.F with version in model/src: replace routine
1004        body of sw_temp by calling sw_ptmp and fix/add a few comments.
1005    o pkg/mnc:
1006      - change default value of pickup_read/write_mnc params to FALSE
1007        (since few features are missing in reading MNC pickup files).
1008    o model/src:
1009      - change default (background) vertical diffusivity for salt to be the
1010        temperature (background) vertical diffusivity.
1011      - change background vertical diffusivity in vertical mixing pkgs ggl90,
1012        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
1013        This makes ptracers default diffusivity (that uses salt diffKr) more
1014        consistent with vertical mixing schemes.
1015    o verification/testreport:
1016      - fix typo in "-pcls" option ;
1017      - put temp files in /tmp (instead of in local dir)
1018      - add option "-ncad" to use genmake2 new option "-nocat4ad"
1019      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
1020    o pkg/ggl90 (idemix code):
1021      - apply few fixes ; add some missing "_d 0" ; update output of exp.
1022        global_ocean.90x40x15.idemix
1023    o OpenAD
1024      - enable active file I/O and begin removal of work-around code
1025        for OpenAD for handling control variables (memory vs. active files)
1026      - new CPP options file OPENAD_OPTIONS.h
1027      - revert to genarr2d gradient check for hs94.1x64x5
1028      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
1029      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
1030    o tools/genmake2:
1031      - add option for an alternative Makefile (from Martin) where multiple
1032        source files are sent to TAF (instead of all in one file).
1033    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
1034      - code provided by Carsten Eden as an extension of ggl90
1035      - so far the code is turned on within ggl90 by setting a CPP-flag at
1036        compile time; a runtime flag implementation is not yet complete
1037      - tested in new verification experiment global_ocean.90x40x15.idemix
1038    o verification:
1039      - reduce length of the AD test run by half for experiments
1040        global_ocean.cs32x15 (std + thsice) and isomip
1041      - enable active file I/O for OpenAD, adjust verifications accordingly
1042      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
1043    o verification/testreport:
1044      - fix two non-POSIX sed statements so that there are no error messages
1045        on Mac OS X
1046      - replace hostname -s with hostname | sed 's/\..*$//'
1047    o model/src/seawater.F:
1048      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
1049        (following the matlab code), which would have avoided the bug caught
1050        by Matt (see below) in the first place
1051    o pkg/shelfice:
1052      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
1053        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
1054      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
1055        ice-shelf case (i.e., within surface level).
1056      - add config summary in shelfice_check.F
1057      - remove global variable recip_SHELFICElatentHeat and replace by a local
1058        variable recip_latentHeat
1059      - introduce diagnostics for friction velocity uStar (in case of
1060        SHELFICEuseGammaFrict)
1061      - change verification experiment isomip.htd:
1062        + start from pickup (as input_ad at nIter0=8640)
1063        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
1064        + test SHELFICEuseGammaFrict = .TRUE.
1065        + test SHELFICEadvDiffHeatFlux = .TRUE.
1066    o model/src:
1067      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
1068        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
1069        update output of experiments global_with_exf.yearly and isomip (all 6).
1070    o pkg/shelfice:
1071      - change setting of kTopC to also be zero where there is no ice-shelf.
1072      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
1073        ice-shelf is.
1074      - first attempt to get RealFreshWaterFlux effects: for now, only without
1075        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
1076    o pkg/seaice: add the option to prescribe a fixed thickness PDF
1077      for thermodynamic calculations
1078      - because of divisions of the type 7/7 not exactly equal to 1, this change
1079        affects results of some verification experiments by up to 4 digits:
1080        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
1081        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
1082        adjoint: lab_sea, lab_sea.noseaicedyn
1083        -> updated
1084    
1085    checkpoint65i (2015/01/23)
1086    o model/src:
1087      - change units of frictionHeating field from W to W/m^2
1088      - fix bug in frictional heating from stratospheric drag in
1089        S/R ATM_PHYS_TENDENCY_APPLY_V
1090      - with synchronous time-stepping: move resetting to zero of frictionHeating
1091        field from load_fields_driver.F to thermodynamics.F ;
1092      - add diagnostics for frictional heating.
1093    o model/src & gmredi K3D:
1094      - add frictionHeating field to pickup-files (for synchronous time-stepping)
1095      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
1096      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
1097        and name in pickup file).
1098      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
1099    o model/src:
1100      - move (from ini_forcing.F) initialisation of all arrays in header file
1101        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
1102        (since Nov 2012) with option selectAddFluid=1.
1103    o pkg/shelfice:
1104      - change units (+ document) of newly added field "shelfIceMassDynTendency"
1105      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
1106    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
1107    o pkg/seaice: two new runtime parameters:
1108      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
1109        long overdue
1110      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
1111        parameterization of tensil stress for fast ice (does not do anything yet)
1112    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
1113        for LSR: move checking overlaps out of JFNK-if-block
1114    o pkg/atm_phys:
1115      - move copy of grid and dynamical fields out of atm_phys_driver.F into
1116        new S/R ATM_PHYS_DYN2PHYS.
1117      - fix level height for Linear Free-Surf case (to be consistent with
1118        fixed-in-time pressure levels).
1119    o pkg/mom_common (bottomdrag):
1120      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
1121        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
1122        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
1123    o pkg/shelfice (u/v_drag):
1124      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
1125      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
1126        (now similar to shelfice_u_drag.F)
1127      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
1128        from mom_vecinv.F (similar to mom_fluxform calls).
1129    o pkg/mom_common (bottomdrag):
1130      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
1131      - add options for alternative discretisation of velocity norm in quadratic
1132        bottom drag: averaging of grid-cell-center KE to U.point and V.point
1133        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
1134        improves when averaging only the other component (e.g. vVel for U bottom
1135        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
1136      - add options (bottomVisc_pCell) to account for partial-cell in bottom
1137        friction (no-slip BC) thus getting the true distance from the bottom;
1138        off by default since this also reduces model stability (explicit bottom
1139        friction). Changes produce different machine truncation with linear-drag
1140        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
1141        front_relax (bvp & mxl, 10 & 11 digits).
1142    o model/src & mom pkgs:
1143      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
1144        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
1145      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
1146        just copy level Nr value to level Nr+1.
1147    o doc:
1148      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
1149    o pkg/shelfice:
1150      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
1151        SHELFICE.h: move array shelficemass to init_varia, initialise
1152        from array shelficemassinit, which is set in init_fixed and
1153        has option to be set from file; introduce array
1154        shelficeMassDynTend array, set thru file in init_fixed
1155      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
1156        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
1157        pkg/streamice
1158      - shelfice_thermodynamics.F: call shelfice_step_icemass if
1159        SHELFICEMassStepping = .true.
1160      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
1161    
1162    checkpoint65h (2014/12/17)
1163    o verification/global_ocean.90x40x15, global_ocean_ebm:
1164      - update to generic controls.
1165    o pkg/ctrl:
1166      - ctrl_map_ini_genarr.F: test for igen>0
1167      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
1168      - move gentim2d part of ctrl_map_ini_genarr.F to
1169        new separate routine : ctrl_map_ini_gentim2d.F
1170      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
1171        add time variable weights and cyclic controls (time mean,
1172        seasonal cycle, etc) capabilities to gentim2d
1173    o pkg/ecco:
1174      - move reading of error, conversion to weights from
1175        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
1176    o global_oce_llc90, cs32:
1177      - activte sbo.
1178      - CTRL_SIZE.h : add maxCtrlProc.
1179      - activate the new genctrl capabilities.
1180      - update following reorganization of global_oce_input_fields.tar.gz  
1181    o pkg/ctrl/ctrl_ad_diff.list:
1182      - add missing ctrl_init_rec.f
1183    o tools/OAD_support/keepOriginal:
1184      - add ctrl_init_rec.F
1185    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
1186      - avoid recomputations of xx_gentim2d_dummy.
1187    o momentum diagnostics:
1188      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
1189        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
1190    o pkg/seaice/seaice_lsr.F:
1191      - fix computation of BU/BV, make sure they are non-zero, only necessary
1192        for cubed sphere exchanges and SEAICE_OLx/y>0.
1193        This makes calling s/r fill_cs_corner_rl obsolete (removed).
1194    o verification/global_ocean.cs32x15/input.seaice
1195      - add test for strong implicit coupling and restricted addtive Schwarz
1196        methods for LSR
1197      - update results/output.seaice.txt
1198    o verification/tutorial_global_oce_biogeo:
1199      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
1200        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
1201        update output_adm,_oadm,_tlm.txt
1202    o pkg/dic:
1203      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
1204      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
1205        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
1206    o verification/tutorial_global_oce_biogeo:
1207      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
1208        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
1209        update output_adm,_oadm,_tlm.txt
1210    o eesupp/src:
1211      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
1212        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
1213    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
1214      LSR (following Hutchings et al. 2004)
1215      - introduce zetaZ as a global variable (requires adjustments in
1216        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
1217        in seaice_calc_viscosities.F
1218      - new flag SEAICEuseStrImpCpl (default off)
1219      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
1220        momentum equations
1221      - JFNK-solver (preconditioner) adjusted to allow using this method
1222        (where it does not have any positive effect)
1223    o pkg/seaice
1224      - add overlap for restrictive additive Schwartz method also to LSR, but
1225        turn it off by default (because it only seems to work for non-cubed
1226        sphere/llc topologies)
1227    o pkg/autodiff
1228      - add extra exchanges in addummy_in_steppging also for mnc output
1229    o pkg/seaice:
1230      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
1231        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
1232    o pkg/obcs:
1233      - add option to specify domain-connected piece Id along OB though files
1234        (for now, only used to diagnose PhiVel; default =1 -> global correction)
1235      - modify obcs_diag_balance.F to process each connected-part separately;
1236        exclude OB where Id = 0 but keep the full divergence there (-> constant
1237        Psi along this portion of OB and all inflow derived from grad(Phi))
1238      - add example of OB-conect files in verification/so_box_biogeo/input.
1239    o pkg/diagnostics:
1240      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
1241      a) use non zero matrix element across OB and solve for Phi 1 grid point
1242         outside OB (i.e, where tracer OBCS are applied).
1243      b) global imbalance of inFlow/outFlow across OB: instead of modifying
1244         velocity across OB, spread it uniformly along the OB in the RHS.
1245    
1246    checkpoint65g (2014/11/19)
1247    o pkg/diagnostcis:
1248      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
1249    o pkg/my82,pp81,kl10:
1250      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
1251        field diffKr as background diffusivity to set minimum diffusivity value.
1252    o pkg/seaice:
1253      - add new parameter SEAICEuseEVPrev (for revisited EVP by
1254        Bouillon et al 2013)
1255      - add SEAICE_evpAlpha/Beta to namelist
1256      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
1257        involve trivial re-ordering of divisions/multiplications that should not
1258        have any effects, but ... they do change the results of lab_sea.hb87 so
1259        that only 2 digits of agreement remain, in line with the general
1260        instability/fragility of the evp-code. For now, I do not care and just
1261        update the verification experiment
1262    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
1263      - remove xx_genarr2d_numsmooth etc
1264      - use xx_genarr2d_preproc etc instead
1265      - carry out smooth_correl2D at initialization stage rather than during
1266        time stepping.
1267      - get smoothOpNb from xx_gentim2d_preproc
1268    o global_oce_cs32 :
1269      - add test of generic ecco capabilities.
1270    o pkg/exf/exf_getsurfacefluxes.F :
1271      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
1272    o pkg/ctrl,ecco :
1273      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
1274        is defined.
1275    o pkg/seaice: add diagnostics for Delta (deformation parameter)
1276    o model/src:
1277      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
1278        diffusivity (background) is specified but ignored.
1279    o verification:
1280      - in testreport, convert hostname to lower case for default output dir name
1281    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
1282    o pkg/dic: add modifications from Hajoon:
1283      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
1284      - light attenuation: add self-shading effect by climatological Chlorophyll
1285        (read from file).
1286    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
1287        compiles when SEAICE_ALLOW_DYNAMICS is undefined
1288    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
1289        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
1290        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
1291        approach where CPP_OPTIONS.h includes an omnipotent
1292        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
1293    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
1294        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
1295    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
1296        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
1297        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
1298    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
1299      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
1300      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
1301      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
1302      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
1303    o pkg/ctrl,ecco,exf :
1304      - remove variables associated with NON-generic costs,
1305        unless ECCO_CTRL_DEPRECATED is defined.
1306      - remove NON-generic NON-obcs controls,
1307        unless ECCO_CTRL_DEPRECATED is defined.
1308    o pkg/ctrl : added ctrl_local_params.h
1309    o pkg/ecco : added ecco_local_params.h
1310    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
1311        experiments, which will progressively be removed once the
1312        experiments are revised to use only generic controls/costs.
1313    
1314    checkpoint65f (2014/10/13)
1315    o pkg/ctrl, ecco, seaice : minor changes in headers
1316    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
1317        cost function and control capabilities added since checkpoint65c.
1318    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
1319    o pkg/ecco: increase modularity and improve logic
1320      - ecco_toolbox.F (new) : basic operations that are often used,
1321        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
1322        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
1323      - cost_gencal.F (new) : determine filnames and records.
1324      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
1325      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
1326        and exploit the above functions leading to more compact code.
1327      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
1328      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
1329        using_ers, using_gfo, using_mdt is now only defined within gencost)
1330    o pkg/ecco: extend generic cost capabilities
1331      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
1332        capabilities via gencost_preproc (+ _c,_i,_r related params),
1333        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
1334        gencost_outputlevel arguments to cost_generic
1335      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
1336        and active_read, making room for gencost_preproc to take effect.
1337        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
1338      - pkg/ecco/cost_generic.F :
1339        compute and store misfit maks*(model-data) in localdif that is
1340        then used in cost and for output, output misfit if outlev.GT.0
1341      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
1342        rather gencost_barfile for deciding whether to write barfile
1343      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
1344      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
1345        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
1346      - pkg/ecco/ecco_summary.F : report gencost variables
1347      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
1348    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
1349    o pkg/ecco: internal re-organization
1350      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
1351        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
1352        mv relevant variables definition from ecco_cost.h to ecco.h,
1353        make sure gencost routines only include ecco.h)
1354      - throughout : add missing CCP switches, rm unused variables,
1355        and rm un-necessary CPP switches
1356      - throughout gencost routines : replace modelstartdate with
1357        gencost_startdate when needed
1358      - cost_bp_read.F : use arguments, instead of common blocs
1359        so that it can be used also by (new) cost_gencost_bpv4.F
1360      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
1361      - ecco_phys.F : compute etanFull
1362      - ecco_readparms.F : rename using_topex as using_tpj, add
1363        bpv4-grace to gencost list, initialize added parameters
1364      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
1365    
1366    checkpoint65e (2014/09/28)
1367    o pkg/obcs:
1368      - replaced the just-added CPP options with run-time variables
1369        (see pkg/obcs/OBCS_PARAMS.h for details)
1370    o pkg/obcs:
1371      - add additional CPP options for sponge boundary layers
1372        (see pkg/obcs/OBCS_OPTIONS.h for details)
1373    o pkg/atm_phys:
1374      - implement simple (obliquity only, assuming circular planet orbit)
1375        seasonal cycle for incoming insolation ; used when run-time parameter
1376        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
1377    o pkg/exf, pkg/ecco, pkg/ctrl:
1378      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
1379      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
1380      - implement gentim2d for xx_tauu, xx_tauv
1381    o pkg/ctrl, pkg/ecco :
1382      - fix and complement the generic controls implementation
1383    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
1384        pkg/shelfice/shelfice_thermodynamics.F,
1385        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
1386        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
1387      - add weight in CTRL_GET_GEN calls
1388    o pkg/ctrl :
1389      - ctrl_get_gen.F : add weight as input parameter, and apply
1390        it directly rather than using smooth_correl2Dw (to be retired).
1391      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
1392    o pkg/ctrl :
1393      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
1394        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
1395      - re-activate ctrl_summary (call in ctrl_init.F)
1396    o pkg/ctrl/ctrl_cost_gen.F :
1397      - fix CCP brackets, remove un-necessary myiter, mytime
1398    o pkg/ecco, pkg/ctrl :
1399      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
1400      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
1401      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
1402      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
1403    
1404    checkpoint65d (2014/09/15)
1405    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
1406      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
1407        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
1408    o pkg/ctrl/ctrl_map_ini_genarr.F :
1409      - remove compilation failure
1410      - replace hard coded example
1411      - use ctrl_map_ini_gen2D, 3D
1412    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
1413      - on/off switch based upon xx_genarr2d_weight,3d
1414    o src/packages_init_variables.F :
1415      - regroup pkg/estimation calls
1416      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1417        (moved to ctrl_init_variables)
1418    o cost/cost_init_varia.F :
1419      - remove ecco_cost_init_varia
1420        (moved to ecco_init_varia)
1421    o ctrl/ctrl_init_variables.F :
1422      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1423      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
1424    o ctrl/ctrl_map_ini.F :
1425      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
1426        (moved to ctrl_init_variables)
1427    o ctrl/ctrl_map_ini_ecco.F :
1428      - remove ECCO_PHYS (mv to ecco_init_varia)
1429      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
1430    o ecco/ecco_ad_diff.list :
1431      - add ecco_init_varia.f
1432    o ecco/ecco_init_varia.F
1433      - new routine
1434    o pkg/streamice:
1435      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
1436        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
1437      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
1438    o pkg/generic_advdiff:
1439      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
1440    o pkg/exf:
1441      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
1442         xxg_precip capability
1443      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
1444    o pkg/ctrl:
1445      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
1446    o model/src/load_fields_driver.F :
1447      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
1448        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
1449    o OpenAD verification experiments:
1450      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
1451        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
1452        for now, only in pkgs used in OpenAD verification experiments.
1453      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
1454        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
1455        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
1456        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
1457    o OpenAD verification tests:
1458      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
1459      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
1460        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
1461      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
1462        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
1463    o model/src & generic_advdiff:
1464      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
1465        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
1466        dynamics requires valid tracer forcing only over tile interior but, for
1467        some diagnostics, may need to extend it over 1 point in tile halo region.
1468      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
1469        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
1470        setting in temp/salt/ptracer_integrate.F
1471    o pkg/dic:
1472      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
1473        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
1474        in gchem_forcing_sep.F
1475    o pkg/autodiff & obcs:
1476      - add storage of current OB values for U & V (was already done for T & S).
1477    
1478    checkpoint65c (2014/08/30)
1479    o pkg/dic:
1480      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
1481        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
1482        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
1483    o verification:
1484      - new experiment testing OBCS and DIC pkgs, using params & output from
1485        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
1486        passage: take OBCS from the last year of a 2 yrs simulation and initial
1487        conditions from t=1.yr while keeping the same forcing.
1488    o model/src:
1489      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
1490        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
1491    o pkg/diagnostics (Stats-Diags):
1492      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
1493        a) refine region where stats are computed, excluding where arrhFac=0 ;
1494        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
1495        c) extend regional stats over the region edges (for U or V pt location).
1496    o pkg/gchem:
1497      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
1498        pkg/dic is currently changing/updating ptracers values beyond the OB).
1499    o verification (hs94):
1500      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
1501        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
1502        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
1503        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
1504    o pkg/ptracers:
1505      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
1506        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
1507      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
1508        with AB-2 code (so that it get tested).
1509    o model/src:
1510      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
1511        with AB-2 code (previously only available with AB-3 code).
1512        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
1513        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
1514        there, by calling CYCLE_AB_TRACER).
1515    o pkg/generic_advdiff:
1516      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
1517        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
1518        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
1519        S/R temp/salt/ptracers_integrate.F
1520    o model/src & pkg/ptracers:
1521      - remove common block variables gT,gS (in DYNVARS.h), except when
1522         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
1523      - remove common block variable gPtr.
1524    o model/src & pkgs:
1525      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
1526         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
1527         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
1528         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
1529      + change accordingly all calling S/R.
1530      - use local temperature/salinity/ptracer tendency array (without bi,bj)
1531        in S/R temp/salt/ptracers_integrate.F
1532    o pkg/seaice:
1533      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
1534        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
1535      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
1536        in seaice_lsr
1537      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
1538        in s/r seaice_lsr_calc_coeffs
1539    o pkg/mdsio:
1540      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
1541        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
1542        too long (e.g., > MAX_LEN_FNAM/2 )
1543    
1544    checkpoint65b (2014/08/12)
1545    o pkg/matrix:
1546      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
1547    o model/src:
1548      - fix initialisation of geothermalFile; compile geothermal-flux code in
1549        natl_box verification experiment.
1550    o model/src & pkg/down_slope:
1551      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
1552      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
1553        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
1554        results at machine truncation level: update output of experiments
1555        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
1556    o pkg/diagnostics (Stats-Diags):
1557      - do not cumulate the full volume when DIAGNOSTICS_FILL is
1558        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
1559        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
1560        times (but Min,Max and StD are still wrong).
1561    o model/src:
1562      - add geothermal flux forcing: read in ini_forcing.F as time-constant
1563        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
1564    o model/src:
1565      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
1566        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
1567        arrays are already updated while adjustments (filters, conv.adjustment) are
1568        still applied later, in S/R TRACERS_CORRECTION_STEP.
1569    o model/src:
1570      - store in common bloc array "rhoInSitu" the virtual potential temperature
1571        anomaly that is used to compute geopotential: this make the atmos code
1572        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
1573    o pkg/seaice/seaice_lsr.F
1574      - rename integer variable ilcall to ipass (that's what it is called
1575        in the residual diagnostics
1576      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
1577        default) for improved non-linear convergence of the first few steps
1578      - adjust a few comments and add new ones to explain some of the store
1579        directives
1580    o pkg/generic_advdiff (& ptracers):
1581      - re-work the code to check for valid advection scheme and for minimum
1582        size of overlap (now stored in local common bloc in gad_advscheme.F)
1583    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
1584      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
1585      - add an auxilliary variable "bet" and fix store directives and keys in
1586        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
1587        less exact gradients in my tests); but there are still
1588        recomputation warning (although gradients are sort of OK), when
1589        SEAICE_LSR_VECTORIZE is not defined, so this flag and
1590        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
1591      - update verification experiments lab_sea.
1592      - change some comments in S/R seaice_calc_viscosities
1593    o model/src:
1594      - if staggerTimeStep=T, always apply exchange to velocity field in
1595        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
1596        (independent of using multi-dim advection or not); no effect on FWD run
1597        but affects AD results (at machine truncation level): update output of
1598        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
1599        and isomip (oad: 12.d).
1600    o pkg/generic_advdiff:
1601      - stop if doAB_onGtGs is set to FALSE but ignored
1602      - refine warning related to stability of tracer time-stepping
1603        regarding internal wave dynamics.
1604      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
1605        on staggerTimeStep & implicitIntGravWave (will now get a warning
1606        if potentially unstable).
1607    o pkg/kl10:
1608      - add new pkg "kl10" for mixing due to internal wave breaking, from
1609        http://www.sciencedirect.com/science/article/pii/S1463500310000144
1610        (contribution from Jody Klymak), tested in verification experiment
1611        verification/internal_wave/input.kl10/
1612    o isomip experiment:
1613      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
1614        (input.htd) and update the output.
1615    o cd_code experiments:
1616      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
1617        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
1618        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
1619        update the corresponding output.
1620    o pkg/seaice:
1621      - reduce the number of include files and store directives in
1622        S/R seaice_lsr_tridiagu/v
1623      - change the order of loops in one case in S/R seaice_lsr_tridiagv
1624        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
1625        get rid off one store directive (a TAF bug?)
1626      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
1627        S/R seaice_lsr_tridiagv to change the loop range for consistency
1628      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
1629      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
1630        S/R seaice_lsr_tridiagu/v (requires update of
1631        offline_exf_seaice/input.dyn_jfnk)
1632    
1633    checkpoint65a (2014/07/27)
1634    o model/src:
1635      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
1636        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
1637        (topo in p-coords, ice-shelf in z-coords); update output of experiments
1638        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
1639    o model/src:
1640      - collect momentum forcing tendency into local 2-D array (passed as argument
1641        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
1642        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
1643        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
1644      - collect T & S forcing tendency into local 2-D array (passed as argument to
1645        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
1646        affects results at machine truncation level (e.g., ocean: if using
1647        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
1648        correction due to vertical advection).
1649      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
1650        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
1651        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
1652        obcs_ctrl (ad & fwd grd @ 12 & 7).
1653    o pkg/ptracers & diagnostics:
1654      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
1655        title (to avoid some unexpected truncation); sort out ptracers diags units.
1656      - collect ptracer forcing tendency into local 2-D array (passed as argument
1657        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
1658    
1659    checkpoint65 (2014/07/18)
1660    o pkg/fizhi:
1661      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
1662        affects results at machine truncation level. Update output of experiments
1663        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
1664    o pkg/seaice: more clean up
1665      - rename TAF common block tapes to be more consistent and remove
1666        unnecessary duplicates
1667      - add store directives to remove more recomputations, but use smaller
1668        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
1669        The idea behind this flag is to reduce the memory footprint when the
1670        adjoint of the LSR is not required. As of now, defining the flag
1671        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
1672        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
1673        For experiment offline_exf_seaice, this means on a linux box with gfortran
1674        nearly a factor of 10 (but keep in mind there is mostly seaice code in
1675        this experiment):
1676        > size mitgcmuv_ad
1677        text    data        bss     dec        hex
1678        5100659 1216  220458952  225560827  d71c8fb
1679        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
1680        but only a moderate increase of 36% for global_ocean.cs32x15:
1681        text    data        bss     dec        hex
1682        6695027 1648 1014578664 1021275339 3cdf6ccb
1683        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
1684      - note: there are still recomputations in global_ocean.cs32x15 and
1685        offline_exf_seaice and the gradient agreement changes (gets a
1686        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
1687      - in general, the AD gradients still are wrong
1688    o OpenAD
1689      - clean up code_oad/ directories somewhat by moving files
1690        dontCompile, dontTransform, keepOriginal to OAD_support/
1691    o model/src:
1692      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
1693        (not currently tested): add dissipation terms before NLFS rescaling of
1694        tendencies (previously done after).
1695    o pkg/diagnostics:
1696      - write stats-diags in ascii file with more digits (same as in monitor).
1697    o pkg/down_slope:
1698      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
1699        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
1700    o model/src:
1701      - new file "apply_forcing.F" containing all the code previously in
1702        external_forcing.F, but with new argument list: pass, as new argument,
1703        the current level tendency array to update (instead of a direct update
1704        of the common bloc array). Change the corresponding calls.
1705      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
1706        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
1707    o pkg/seaice/seaice_lsr, a little bit of clean up
1708      - rearrange some code blocks, so that now all calculations for
1709        setting up the right-hand-sides done within one single block
1710        (I find that easier to read and understand)
1711      - rearrange freedrift-code to reduce the number of ifdefs
1712      - adjust some indentations and comments
1713    
1714    checkpoint64z (2014/07/10)
1715    o model/src and several pkgs:
1716      - change argument list of all S/R called from external_forcing.F and
1717        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
1718        to pass, as argument, the current level tendency array to update
1719        (instead of a direct update of the common bloc array).
1720      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
1721      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
1722    o pkg/seaice/seaice_lsr.F
1723      - always initialize local arrays in seaice_lsr_tridiagu/v
1724      - add more local tapes to seaice_lsr_tridiagu/v
1725      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
1726        keep it in bi/bj loop; this seems to be essential
1727      - gradients are still wrong but only by 4-7 orders of magnitude
1728        instead of 15 orders of magnitude, lab_sea improves a little
1729    o pkg/seaice
1730      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
1731        generates unnecessary code in seaice_lsr_ad
1732      - add more store directives in seaice_lsr to avoid unnecessary code
1733        in seaice_lsr_ad
1734      - exclude some residual computations in seaice_lsr when
1735        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
1736        in seaice_lsr_ad
1737      - add more storing, a new tape (model/src/the_main_loop.F) and
1738        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
1739        and klockey should be checked by a specialist)
1740      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
1741        and update lab_sea after previous changes in pkg/seaice below
1742    o pkg/autodiff:
1743      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
1744        viscFacInAd : run time parameters allowing for adjoint switches
1745        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
1746    o pkg/ecco:
1747      - introduce cost_gencost_boxmean.F that computes a box mean
1748        temperature (for use in adjoint sensitivity studies).
1749    o model/src/set_defaults.F : initialize viscFacAdj to 1.
1750    o pkg/mom_common/mom_calc_visc.F:
1751      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
1752    o pkg/seaice/seaice_summary.F:
1753      - statement for SEAICEadjMODE now in autodiff_readparms.F
1754    o pkg/seaice:
1755      - remove some store directives and add new ones in an effort to get
1756        finally rid off the recomputation warnings. This is successful
1757        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
1758        defined (i.e. no extensive recomputation warnings left), but there
1759        are still too many recomputations on the solver iteration level
1760      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
1761      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
1762        SEAICE_SIZE.h
1763      - add a store directive in S/R seaice_calc_viscosities
1764    o pkg/seaice (ITD code):
1765      - fix definition of Hlimit for multi-threaded case
1766      - use double precision arithmetic to compute Hlimit: this affects results;
1767        update output of experiment seaice_itd.
1768    o replace content of verification/seaice_itd
1769      - instead of a 1D column use the configuration of offline_exf_seaice
1770        to test the ice thickness distribution code with ridging
1771      - this is a first shot at this experiment
1772      - change of some defaults of ridging parameters SEAICEhStar (from
1773        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
1774        and lot of new comments.
1775    
1776    checkpoint64y (2014/06/20)
1777    o pkg/seaice/seaice_reg_ridge.F:
1778      - modify the regularization of very small volumes of ice; only check
1779        total volume HEFF, and do not apply correction to individual ice
1780        classes because that leads to funny patterns in the heat and fw-fluxes
1781        into the ocean. Adjust seaice_itd/results/output.txt
1782      - replace nITD by SEAICE_multDim in loop-ranges
1783    o pkg/exf:
1784      - add code to process the case field period = -12. with UV interpolation.
1785      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
1786        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
1787    o verification/global_with_exf:
1788      - switch all fields period to -12. (was previously untested) in input/data.exf
1789        (but keep secondary test ".yearly" unchanged); update the reference output.
1790    o pkg/cal:
1791      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
1792    o pkg/exf:
1793      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
1794        to replace logical switch "exf_verbose"
1795      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
1796    o pkg/sbo:
1797      - update from Katherine Quinn: evaluate mass directly from density and SSH
1798        (budget using Finite Volume method) instead of from bottom pressure.
1799      - allow testreport to collect few selected SBO output ; tested in exp.
1800        global_ocean.90x40x15 (after updating the results, to include SBO output).
1801      - fix some multi-threading issues (in output part).
1802    o model/src & most packages:
1803      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
1804      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
1805        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
1806        "data.{pkg}" exist ; and leave the S/R (return) just after.
1807      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
1808        + call LAND_READPARMS from packages_readparms.F
1809    o pkg/seaice:
1810      - remove code that resets useThSice in S/R seaice_readparms and
1811        replace it by a warning in S/R seaice_check
1812      - remove parameter MULTDIM, replace with nITD and runtime
1813        parameter SEAICE_multDim (still hard-wired to nITD if
1814        SEAICE_ITD is defined)
1815    
1816    checkpoint64x (2014/05/24)
1817    o verification/lab_sea:
1818      - update adjoint and TLM output following changes to pkg/salt_plume
1819      - un-do the update after putting back local recip_Cp in few places.
1820    o pkg/salt_plume: modifications by An Nguyen:
1821      - add capability to do brine rejection (salt-plume) as function of
1822        volume+tracers (instead of only salinity tracer).
1823      - conserve volume by exchanging volume from each kLev to above to
1824        accommodate in-coming brine volume
1825      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
1826      - switch KPP surf buoyancy due to brine forcing to 3-d
1827        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
1828      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
1829      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
1830        in East/West Arctic.
1831    o pkg/sbo:
1832      - incorporate modifications from Katherine Quinn to enable the use of sbo
1833        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
1834        output for future testreport verification (unfinished).
1835    o pkg/atm_phys:
1836      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
1837        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
1838        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
1839    o pkg/seaice
1840      seaice_calc_ice_strength.F: modify expression to avoid divisions
1841        (affects truncation)
1842      seaice_do_ridging.F: clean up the insectarium
1843    - fix a bug that was compensated by areaScaling (-> remove areaScaling code)    - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
1844    - added SEAICEsnowFracRidge to redistributed snow (2nd bug)    - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
1845    - set closing/openingRate to zero where no extra iteration is need (3rd bug)    - set closing/openingRate to zero where no extra iteration is need (3rd bug)
1846    - add some debugging information and error messages (warnings)    - add some debugging information and error messages (warnings)
1847  o model/src: modifications relatd to atmosphere p*:  o model/src: modifications relatd to atmosphere p*:
1848    - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)    - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
1849    - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead    - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead

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