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revision 1.1999 by jmc, Sat May 24 13:26:28 2014 UTC revision 1.2356 by jmc, Wed Oct 4 20:43:58 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 model:
8      - add new 2-d forcing field for time-dependent geopotential anomaly (e.g.,
9        tidal forcing), in m^2/s^2 ; add run-time param to allow to turn it off.
10    o eesupp/src:
11      - shift standardMessageUnit in eeboot.F and I/O units in mdsfindunit.F
12        for coupling to GEOS AGCM: HACK_FOR_GMAO_CPL option in CPP_EEOPTIONS.h
13    
14    checkpoint66k (2017/09/20)
15    o model/src:
16      - add missing CPP brackets (ALLOW_COST, ALLOW_CTRL in load_fields_driver.F
17        and the_model_main.F)
18    o ctrl:
19      - use zeroRL in place of fc when ALLOW_COST is not compiled (in ctrl_pack.F)
20      - call MDS_READ_FIELD / MDS_WRITE_FIELD instead of deprecated
21        mdsreadfield / mdswritefield (in ctrl_get_gen.F, ctrl_map_ini_gen.F,
22        ctrl_map_ini_genarr.F, and ctrl_map_ini_gentim2d.F )
23    o eesupp:
24      - add CPP option to activate some pieces of code for coupling to GEOS AGCM;
25      - shift commonly used IO unit (in eeboot.F) for coupling to GEOS AGCM.
26    o pkg/bling:
27      - bling_production: Fix typo in calcium carbonate uptake. Also rearranging
28        and cleaning
29    o model/src:
30      - move k loop inside correction_step.F (+ update calling S/R)
31      - collect implicit pressure gradient tendencies in local 2-D array;
32        affect results (at machine truncation level) when using 3-D solver; update
33        output of exp.: exp4 (x1), global_ocean.cs32x15 (x2),hs94.cs-32x32x5.impIGW,
34                        rotating_tank, short_surf_wave,tutorial_deep_convection (x2)
35                        & tutorial_plume_on_slope.
36    
37    checkpoint66j (2017/08/15)
38    o pkg/ptracers:
39      - fix surface forcing under ice-shelf (useShelfIce=T).
40    o pkg/atm_phys:
41      - use hFac weighted average when applying A-grid atm-phys momentum tendency
42        to C-grid dynamics; this ensures wind-stress match mom tendency.
43    o eesupp/src:
44      - change default for opening scratch files to avoid STATUS='SCRATCH'
45      - close scratch files with STATUS='DELETE'
46      - changes affect eeset_parms.F and open_copy_data_file.F and many routines
47        that read namelists (because they close the scratch files)
48      - you can revert to old default by setting USE_FORTRAN_SCRATCH_FILES
49        in CPP_EEOPTIONS.h (tested in ideal_2D_oce/code & lab_sea/code_ad)
50    o pkg/atm_phys:
51      - fix unset arguments in (unused) S/R surface_flux_0d.
52    o eesupp/src:
53      - add argument "procId" to S/R EESET_PARMS to fix  scratchFile1 & 2 setting
54        (case TARGET_BGL or TARGET_CRAYXT) for early call (from eeboot_minimal.F):
55        called with myProcId in eeboot.F and with mpiMyWId in eeboot_minimal.F
56    o pkg/streamice:
57      - remove blank between _EXCH_XY_RL and "()", which my Apple Xcode
58        preprocessor /usr/bin/cpp cannot interpret; 3 instances in total in
59        streamice_driving_stress_fd.F and streamice_advect_2dtracer.F
60    o pkg/diagnostics:
61      - new option to allow to cumulate thickness-factor (hFac) weighted field
62        (if field permitted); implemented by changing sign of "jdiag" pointer
63        (> 0: cumlulate field, < 0: cumulate hFac weighted field).
64        a) restricted to 3-d (Nr levels), level centered diagnostics at U,V or Cell
65           center position (gcode(2)='U','V','M' & gcode(3,5,9:10)='R',' ','MR')
66        b) for now, activated by setting fileFlags 3rd character to 'h'.
67    
68    checkpoint66i (2017/07/18)
69    o pkg/cheapaml:
70      - add parameter "useRelativeWind", default set to False; this change the
71        previous setting which was always using relative wind.
72    o add hooks for the Parallel Data Assimilation Framework PDAF
73        (http://pdaf.awi.de/) in eeboot_minimal.F and the_main_loop.F;
74        to use set CPP-flag USE_PDAF in CPP_EEOPTIONS.h
75    o pkg/exf:
76      - interpolation of vector fields (exf_interp_uv.F): fix bug in calculation
77        of South-Pole mean value.  
78      - interpolation near the poles, case where second additional row is at the
79        pole (or beyond the pole and moved to the pole): change first addition row
80        value to a linear interpolation between pole and 1rst (S.pole)/last (N.pole)
81        row (instead of just a copy of it).
82    o pkg/seaice:
83      - prevent JFNK and KRYLOV solvers from trying to reduce a residual of 0
84      - add the option to compute no-slip du/dy, dv/dx (i.e.
85        the offdiagonal strain rate e12) by a second order approximation
86        on the boundary; works only with JFNK, KRYLOV, or EVP solvers, because
87        it is too messy to implement for the implicit LSR matrix.
88        SEAICE_2ndOrderBC = .FALSE. by default
89    
90    checkpoint66h (2017/06/02)
91    o pkg/seaice:
92      - add new routines to compute stress tensor components and stress tensor
93        divergence to be reused in s/r seaice_lsr and s/r seaice_calc_lhs
94      - change names of diagnostics SIsigI/II (commonly used for invariants)
95        to SIsig1/sig2 (more common for principal components) to avoid confusion
96    o pkf/exf:
97      - add a stop if useRelativeWind with un-updated uwind/vwind (e.g., constant);
98        similarly, stop if rotateStressOnAgrid with constant wind-stress.
99    o pkg/seaice:
100      - remove (comment out) diagnostics SIuwind,SIvwind,SIfu,SIfv (duplicate of
101        EXFuwind,EXFvwind,oceTAUX,oceTAUY) and point them to their equivalent.
102      - add diagnostics of wind-stress over seaice (SItaux,SItauy) and seaice
103        fraction weighted wind stress over ocean+seaice (SIatmTx,SIatmTy).
104    o pkg/diagnostics:
105      - small piece of code to rename (old) diagnostics, when namelist is processed.
106    o model/src:
107      - new run-time param (useMin4hFacEdges) to select method for setting hFacW,S:
108        originally, set as minimum of adjacent hFacC factor ; now (new default)
109        computed from rSurfW,S and rLowW,S by applying same rules as for hFacC.
110        Only matters when useShelfIce=T with particular ice-shelf cavity geometry.
111    o pkg/seaice:
112      - add momemtum advection, off by default, still in test phase
113        most of the momentum advection code is adapted and reused from mom_vecinv
114    o pkg/mom_vecinv:
115      - pass these runtime flags:
116        selectVortScheme, highOrderVorticity, upwindVorticity, useJamartMomAdv
117        as formal parameters to s/r mom_vi_u/v_coriolis, mom_vi_u/v_coriolis_c4,
118        so that these routines can also be used in pkg/seaice.
119    
120    checkpoint66g (2017/04/24)
121    o model/src:
122      - more robust ordering of column thickness integral (=Sum_k(drF*hFac) )
123        to get same expression (regarding machine truncation) in different places
124        in ini_masks_etc.F (e.g., rSurfC,W,S is now exactly zero when it should).
125        Update forward output of experiments: global_ocean.cs32x15 (all 5 except
126        viscA4), isomip (x3), tutorial_global_oce_in_p & tutorial_plume_on_slope.
127    o pkg/shelfice:
128      - ALLOW_SHIFWFLX_CONTROL: move setting of maskSHI from shelfice_update_masks.F
129        to shelfice_init_fixed.F
130      - change S/R SHELFICE_UPDATE_MASKS to SHELFICE_INIT_DEPTHS (still called from
131        ini_masks_etc.F for now) to update ocean upper boundary position according
132        to ice-shelf topography (instead of directly updating hFacC).
133    o model/src:
134      - move call to CTRL_INIT & CTRL_ADMTLM from the middle to the bottom of
135        packages_init_fixed.F to allow other pkgs to set mask and weight fields.
136    
137    checkpoint66f (2017/04/06)
138    o model/src:
139      - add specific run-time param to select level of printed plot-field-maps,
140        set by default to debugLevel. Remove internal param "printDomain".
141    o pkg/seaice:
142      - add flag to add snow mass to seaiceMassC/U/V, the default is
143        SEAICEaddSnowMass=.FALSE., not to change previous results
144    o pkg/bling
145      - Bug fix in bling_production regarding unit conversion for diagnostics
146        being put in the wrong place
147    o model/src:
148      - add back recomputation of rSurfW & S to ensure consistent column thickness
149        (needed for rStar) between Sum_k(hFac*drF) and rSurf-rLow, for now only
150        when using pkg/shelfice; was initially added on 2012/06/01 (ini_masks_etc.F
151        revision 1.51) but was removed accidentally on 2014/02/08 (v1.53).
152    o pkg/autodiff:
153      - clean-up "checkpoint.flow"
154    o pkg/rw (Contribution from Jody Klymak):
155        option to set mds file suffix as function of time in simulation:
156        *) new input parameter "rwSuffixType" (read from PARM03 namelist)
157           to select file suffix format; by default (=0), use iteration number;
158        *) add simple routine to return file suffix according to rwSuffixType;
159        *) in model/src and in most pkgs (except: atm2d, fizhi, regrid & streamice),
160           use new S/R to get file suffix, except for debug output file (diagFreq)
161           and pkgs offline & rbcs input files.
162    o pkg/rw:
163      - uniform processing of "I10" suffix across writing fld routines; used to
164        simplify debug writing of cg2/3d_b/x in solve_for_pressure.F & post_cg3d.F
165        (similar to cg3d.F, cg3d_ex0.F)
166    o pkg/mom_vecinv:
167      - highOrderVorticity in selectVortScheme=2 case: fix c4 coeff in splitted
168        vorticity flux (keep same sum in case vBarXm=vBaXp, uBarYm=uBarYp).
169    o pkg/bling:
170      - Many small changes intended to clean the code.
171        Unnecessary ADJOINT_SAFEs removed ;
172        removed BLING_COST.h BLING_CTRL.h bling_cost.F ;
173        diagnostics added.
174    
175    checkpoint66e (2017/03/14)
176    o pkg/exf:
177      - interpolation with #undef EXF_INTERP_USE_DYNALLOC: move buffer size
178        definition outside EXF_PARAM.h in new header file: EXF_INTERP_SIZE.h;
179        use fixed size buffer (passed to S/R EXF_INTERP & EXF_INTERP_UV) to
180        avoid any dynamic allocation ;
181      - S/R EXF_CHECK: add new check & stop when file-name is defined but not
182        read-in ; add warning when file is read-in but not used within pkg/exf ;
183        + check for buffer-size (if #undef EXF_INTERP_USE_DYNALLOC).
184      - update exf_summary.F (print {FLD}RepCycle).
185    o verification/global_with_exf:
186      - switch on exf interpolation in AD test (just like the forward test)
187    o pkg/mom_vecinv:
188      - add storage directives to avoid recomputations within mom_vecinv.F
189        which were generating seg. fault with gfortran -devel
190    o pkg/ctrl, pkg/smooth:
191      - initialize array halos which were generating seg. fault with
192        gfortran -devel in adjoint mode
193    o pkg/exf:
194      - for each input field, enable to specify a field specific repeat-cycle
195        ({FLD}RepCycle) which defaults to pkg/exf main "repeatPeriod".
196    o verification/lab_sea:
197      - update AD results of primary test and noseaicedyn test after switching
198        to new version of TAF (5.3.13 vs 5.3.2 before); agreement with gradient
199        check stays about the same.
200    o pkg/exf:
201      - fix bug in exf_zenithangle.F for cases select_ZenAlbedo > 0 with useCAL=T.
202      - exf_check: MAX_LAT_INC need only be "loc_nlat-1", not equal to loc_nlat
203    o pkg/bling, USE_EXFCO2 code:
204      - add parameter "apco2RepCycle" (set to pkg/exf "repeatPeriod" by default);
205      - update calls to EXF S/R (use new version: EXF_INIT_FLD & EXF_SET_FLD).
206    o pkg/exf:
207      - rename S/R EXF_INIT to EXF_INIT_VARIA ;
208      - add arguments: fldName (for debug msg) and fldRepeatCycle (set to
209        repeatPeriod) to S/R EXF_SET_UV and to S/R EXF_SET_GEN (renamed EXF_SET_FLD)
210        and update calls in pkg/exf calling S/R (exf_getffields.F & exf_getclim.F) ;
211      - add argument: fldName (for debug msg) to S/R EXF_INIT_GEN (renamed
212        EXF_INIT_FLD) and update calls in exf_init_varia.F
213      - For now, for backward compatibility, keep a simplified version of S/Rs
214        EXF_SET_GEN & EXF_INIT_GEN in file exf_set_gen.F
215      - add and pass new arguments: fldName (for debug msg) and fldRepeatCycle
216        to S/R EXF_GetFFieldRec ; update calls in pkg/obcs/obcs_exf_load.F
217    o tools/genmake2:
218      - replace "bc -l" (only used once) by "expr" (already used).
219    o verification/global_ocean.cs32x15:
220      - turn off pkg/cal (useCAL=F) in secondary FWD exp. "icedyn".
221        Note: exf setting (data.exf) can be compared to other exf secondary exp
222        "seaice" (kept with useCAL=T) which has same time dependent forcing.
223    
224    checkpoint66d (2017/02/13)
225    o pkg/exf:
226      - remove setting of useCAL=T when using pkg/exf (useEXF=T); add warning
227        early on (in packages_boot.F) to stress this change in pkg setting.
228      - In (most) verification exp. that use pkg/exf, add useCAL=.TRUE. to data.pkg
229    o model/src:
230      - move call to ecco_phys to end of time step; this may induce minor
231        cost function changes by shifting time averages by one time step
232        for some variables; this revision resulted in changed adjoint results
233        in MITgcm_contrib/verification_other/global_oce_cs32
234    o pkg/exf:
235      - Change EXF_READ_EVAP to only activate code within #ifdef ALLOW_ATM_TEMP ;
236        this prevents to read evap when ALLOW_ATM_TEMP is undef and other fields,
237        e.g. precip, are not available.
238    o pkg/flt:
239      - flt_init_varia.F: use pickupSuff if specified
240      - add code (within #ifdef DEVEL_FLT_EXCH2) and test case as a first,
241        intermediate, step towards completing pkg/exch2 support within pkg/flt;
242        ifdef DEVEL_FLT_EXCH2 then:
243        - flt_init_fixed.F: comment out stop
244        - flt_exch2.F: conserve ipart, jpart (grid coordinates)
245        - exch2_recv_get_vec.F: transform ipart, jpart (grid coordinates)
246        - flt_mapping.F: attempt to fix longitude diagnostic near date-line
247        - flt_init_varia.F: hack initialization (for testing purposes w. LLC90)
248    o tools/genmake2 & pkg/pkg_depend:
249      - define new type of pkg dependency rule ("=pkg_x"), less strict than
250        the "+" rule, that add the dependent pkg (pkg_x) unless it's disabled
251        (-pkg_x in packages.conf).
252      - change pkg/exf dependency rule from "exf +cal" to "exf =cal";
253      - add "+cal" to dependency list of pkg/ecco (needed to compile).
254      - simplify FWD experiment "offline_exf_seaice" by removing pkg/cal.
255    o utils/matlab:
256      - adding ocean_basin routines for defining basin masks.
257    o pkg/exf:
258      - new S/R EXF_GETFFIELD_START replacing EXF_GETFIELD_START, but with more
259        arguments, allowing to check (and stop) if parameter setting of
260         {FLD}startdate1 & date2 and of {FLD}StartTime are consistent with
261        useCAL= T or F. For now, kept a simplified version of EXF_GETFIELD_START
262        for backward compatibility.
263      - change accordingly calls in exf_init_fixed.F + default {FLD}StartTime in
264        exf_readparms.F ; apply same changes to pkg/icefront (for SGRunOff field).
265    o pkg/bling (USE_EXFCO2 code):
266      - fix missing setting of apco2StartTime according to apco2startdate1 & date2
267        by adding a call to S/R EXF_GETFFIELD_START.
268    o pkg/exf:
269      - allows to compile without pkg/cal (but disabled by current dependency
270        rules, i.e., default "pkg/pkg_depend"). Minimal changes to enable to
271        run with useCAL=F ; this involves setting directly {FLD}StartTime instead
272        of {FLD}startdate1 & date2 ; consistency check not yet coded.
273    o verification/global_ocean.cs32x15:
274      - fix all data.exf for a shift of 1 day in all field startdate1 so that it now
275        corresponds to middle of 1rst month; update outputs (2 fwd + 3 adm + 3 tlm).
276    o pkg/exf:
277      - allow to use EXF_ZENITHANGLE without pkg/cal + simplify (saving some
278        calculations); change FWD experiment global_ocean.cs32x15
279        (#define ALLOW_ZENITHANGLE) to test/check that this code compiles.
280    o pkg/exf:
281      - In preparation for addition to NAMELIST, rename internal (_RL) parameter
282         {FIELD}startdate to {FIELD}StartTime
283        Note: new name also fit better the content, i.e, a start time in second.
284    o eesupp/src:
285      - add 1 argument to S/R EEBOOT & EEBOOT_MINIMAL for interface with ESMF
286    o pkg/exf:
287      - add option ALLOW_READ_TURBFLUXES (and corresponding set of parameters)
288        to allow to read-in Sensible & Latent Heat flux ;
289      - simplify pkg/exf main options:
290        1) move small piece of code (case ALLOW_ATM_TEMP undef) out of
291           exf_bulkformulae.F into exf_wind.F so that exf_bulkformulae.F is
292           compiled only when both ALLOW_ATM_TEMP & ALLOW_BULKFORMULAE are defined;
293        2) make call to EXF_RADIATION and to EXF_WIND independent of CPP option
294           ALLOW_BULKFORMULAE which now only applies to S/R EXF_BULKFORMULAE ;
295        3) improve options documentation in EXF_OPTIONS.h.
296    o pkg/ecco:
297      - cost_gencost_customize.F,ecco.h,ecco_phys.F,ecco_readparms.F, and
298        ecco_summary.F: add passive tracer cost functions to gencost;
299        m_ptracer and m_boxmean_ptracer
300    o pkg/ctrl:
301      - ctrl_map_forcing.F: pass myIter and myTime to ctrl_map_forcing as input
302        parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing; add to list
303        of implemented gentim2d contol parameters: xx_qnet, xx_empmr, xx_qsw,
304        xx_sst, xx_sss, xx_pload, xx_saltflux, xx_fu, xx_fv, xx_fe, xx_fn
305    o model/src:
306      - forward_step.F: pass myIter and myTime to ctrl_map_forcing as input
307        parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing
308    o pkg/exf:
309      - exf_getffields.F: add to list of implemented gentim2d contol parameters:
310        xx_lwflux, xx_swflux, xx_evap, xx_apressure, xx_areamask
311    
312    checkpoint66c (2017/01/19)
313    o verification:
314      - add new option "-src" to testreport to only produce source code (*.f),
315        including taf output src code (if using '-adm'/'-tlm' option).
316    o pkg/exf:
317      - add saltflx :: Net upward salt flux in psu.kg/m^2/s
318    o pkg/diagnostics:
319      - add run-time variable diagMdsDir to specify a subdirectory for
320        diagnostic output when mds is being used and mdsioLocalDir is not.
321    o pkg/mnc:
322      - mnc_utils.F: edit stop message
323    o pkg/autodiff:
324      - autodiff_ini_model_io.F: PRINT_MESSAGE, clean-up comments, add _*_MASTER,
325        add HAVE_SYSTEM bracket around system call to mkdir
326    o pkg/profiles:
327      - profiles_findunit.F, profiles_init_fixed.F, profiles_interp.F,
328        profiles_readparms.F: call ALL_PROC_DIE before 'stop'
329      - profiles_ini_io.F: use PRINT_MESSAGE, clean-up comments, add _*_MASTER,
330        add HAVE_SYSTEM bracket around system call to mkdir
331    o pkg/smooth:
332      - smooth_filtervar2d.F, smooth_filtervar3d.F: call ALL_PROC_DIE before 'stop'
333      - smooth_init2d.F, smooth_init3d.F: move print statements to readparms
334      - smooth_readparms.F: add cleaner print statements from smooth_init?d.F
335    o pkg/exf:
336      - check: count errors and stop cleanly at the end (call to ALL_PROC_DIE);
337        issue error message when climsst_interpMethod.GT.0 and climsst_lon_inc > 500
338        generalize tests on interpMethod, nlat, and lon_inc to all exf variables.
339      - summary: skip detailed field report if not used (empty file-name).
340    o tools/xmakedepend:
341      - In case line editor "ed" is missing, switch to "sed" command to clean-up
342        Makefile from previous dependencies (anything after "# DO NOT DELETE" line).
343    o pkg/exf:
344      - change definition of "hflux" input file to always include Short-Wave;
345        this is now consistent with hflux computation (if using bulk-formulae)
346        and hflux diagnostic & documentation (in EXF_FIELDS.h).
347    
348    checkpoint66b (2016/12/01)
349    o model & momentum pkgs:
350      - implement fully implicit bottom friction combined with implicit surf.
351        pressure, for now, only in hydrostic formulation:
352        + to use: compile with #define ALLOW_SOLVE4_PS_AND_DRAG in CPP_OPTIONS.h
353          and run with selectImplicitDrag=2 ;
354        + currently missing diagnostics of bottom drag and vert. viscosity tendency;
355      - partial implicit time-stepping (bot. friction + vert. visc first, then
356        surf. press) corresponding to selectImplicitDrag=1 should be applicable
357        to NH formulation but not available until we solve for surf. pressure
358        increment (instead of full etaN).
359      - change exp. global_ocean.cs32x15.thsice to test implicit bottom drag
360        with implicit vertical viscosity.
361    o pkg/seaice: add linear remapping scheme (Lipscomb 2001) to ITD model
362      - this is a first version that includes many regularisations that may
363        not all be necessary, to be sorted out,
364      - turned on by runtime parameter SEAICEuseLinRemapITD (true by default)
365      - change one verification experiment in seaice_itd to use and test new code
366      - seaice_growth: catch a case where the argument of log can be zero
367        or smaller (important for code stability)
368    o model/src:
369      - modify SOLVE_DIAGONAL_LOWMEMORY version of solve_tridiagonal.F
370        & solve_pentadiagonal.F to enable to re-used inverse matrix for solving
371        similar A.X'=Y' system (with same matrix A) in subsequent calls;
372        switch based on errCode (In/Out) argument value; in calling routines,
373        initialise errCode before first call.
374    
375    checkpoint66a (2016/10/18)
376    o pkg/bling:
377      - BLING package now loads in atmospheric pCO2 file using exf package routines
378        Enable with #define USE_EXFCO2 in BLING_OPTIONS.h
379    o model/src & pkg/ptracers:
380      - with INCLUDE_IMPLVERTADV_CODE defined, also call MOM_U,V_IMPLICIT_R &
381        GAD_IMPLICIT_R (instead of IMPLDIFF) when just implicitViscosity and
382        implicitDiffusion (respectively) are used (even without momImplVertAdv
383        or temp,salt,PTRACERS_ImplVertAdv).
384    o model/src & generic_advdiff:
385      - add parenthesis in main diagonal calculation of implicit vertical
386        diffusion matrix (impldiff.F & gad_implicit_r.F).
387        This affects results at machine truncation level; update output of many
388        verification experiments (31 fwd ; 10 adm ; 8 tlm ; 3 oad).
389    o pkg/mom_commom & generic_advdiff:
390      - add deep atmosphere and anelastic scaling factor in implicit vertical
391        advection routines (mom_u,v_implicit_r.F & gad*_impl*_r.F).
392    o model/src:
393      - remove few unnecessary temp array copies in solve_tridiagonal.F
394        & solve_pentadiagonal.F
395    
396    checkpoint65z (2016/09/28)
397    o pkg/seaice: fix multithreading for seaice_fgmres.F
398      - remove unecessary variables from common blocks
399      - use extra dimension MAX_NO_THREADS for all variables of the Krylov space
400        basis, that are stored in commom blocks (including integer variable i1)
401      - clean up code a little by removing commented lines that refer to
402        original code
403      - turn on multi-threaded test for experiment offline_exf_seaice.dyn_jfnk.
404    o MITgcm manual:
405      - add uptodate pkg/ecco documentation to the manual (section 8.1; ecco.tex),
406        preliminary documentation for generic controls (8.3; ctrl.tex),
407        a placeholder for smooth (8.4; smooth.tex), and comment out the deprecated
408        ecco_costfunction.tex
409    o pkg/ecco:
410      - update and cleanup list of CCP options
411      - re-assign gencost_mask to specify masks rather than gencost_errfile; 'c'
412        is now always passed to cost_generic; gencost_mask is now MAX_LEN_FNAM
413      - add checks that retired run-time options are not used, and in relation
414        to gencost_mask and gencost_errfile
415      - finish deprecating gencost_scalefile, gencost_smooth2Ddiffnbt, and
416        gencost_nrecperiod
417      - fix m_eta computation for virtual salt flux case
418      - add m_horflux_vol case (selected via gencost_barfile) that computes
419        transports via cost_gencost_boxmean (gencost_flag=-3)
420      - use gencost_flag more systematically (i.e., avoid using gencost_name)
421        for code switches (aside from physical variable selection)
422    o pkg/seaice: make seaice_fgmres.F fit for multithreading; this first
423      attempt appears to be a bit of a hack and my need some repair down the road
424    o pkg/exf:
425      - interpolation near South Pole: fix criteria on input field latitude.
426    o pkg/icefront & pkg/exf:
427      - move setting of icefront Sub-Glacial RunOff forcing (currently unused)
428        from pkg/exf (read from data.exf) to pkg/icefront (read from data.icefront)
429    o pkg/exf:
430      - replace CPP option ALLOW_EXF_OUTPUT_INTERP with run-time parameter
431        "exf_output_interp" (in namelist: EXF_NML_04); change output file name
432        (add suffix "_out" instead of a prefix); keep same record number as in
433        input file but always write record 1 first (to avoid a STOP in I/O S/R).
434        Change output file content by writing interpolated field before applying
435        land-sea mask (helpful for debug).
436      - 2 compon. vector interpolation with rotation: apply scaling factor on
437        each compon. (Eastward and Northward) just before rotation.
438    o pkg/bling:
439      - Cleaned package. Removed not needed code and comments.
440      - adjoint example now works
441        (MITgcm_contrib/verification_other/global_oce_biogeo_bling/code_ad)
442    o pkg/ptracers:
443      - add Bruno Deremble's code to complete the linear surface correction
444        for tracer conservation;
445      - enabled for individual ptracers by PTRACERS_linFSConserve(iTr)=.TRUE.
446    
447    checkpoint65y (2016/07/29)
448    o pkg/debug (stats):
449      - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
450        proc/thread mapping);
451      - fix Min & Max for case where 1 thread has only empty tiles;
452      - use RL variable to count number of wet grid points (with big domain,
453        can be too large to fit into integer*4).
454    o pkg/monitor:
455      - use RL variable to count number of wet grid points (but used only for del2)
456      - add new routine to compute Advective CFL within tracer time-stepping with
457        writing delayed until next monitor output.
458    o pkg/obcs:
459      - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
460    o pkg/cal:
461      - calandar-dump: treat case myTime < timePhase in the same way as in
462        eesupp/src/diff_phase_multiple.F (when not using calandar-dump).
463    o pkg/dic & seaice:
464      - fix compilation of ocean component for coupled atm+ocn model with
465        seaice dynamics & dic.
466    
467    checkpoint65x (2016/06/11)
468    o add a license text file in main MITgcm tree.
469    o added pkg/bling:
470      - intermediate complexity biogeochemical model
471      - see bling_description.txt for details
472      - verification experiment is global_oce_biogeo_bling (for now, in
473        Contrib/verification_other/); tested daily on baudelaire with gfortran.
474      - add entry point in pkg/gchem for new pkg "bling".
475    o pkg/seaice: fix tensile stength computation
476      - replace global field tensileStrength by tensileStrFac
477      - tensileStrFac can be computed once in S/R seaice_init_varia
478      - fortunately that does not affect any verification results
479    
480    checkpoint65w (2016/05/12)
481    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
482         with ECCO_CTRL_DEPRECATED defined
483    o verification/global_ocean.cs32x15:
484      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
485        with "selectNHfreeSurf=1".
486    o model/src (non-hydrostatic free-surface):
487      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
488        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
489      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
490        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
491        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
492        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
493      - Update output (changes at machine truncation level) of verification exp:
494        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
495        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
496    o pkg/seaice: ITD code
497      - fix picking up from a single category model by initialising
498        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
499      - split a long warning message in seaice_check_pickup.F into two lines,
500        because NEC SX-ACE cannot deal with the long line.
501    o model/src:
502      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
503    o pkg/seaice:
504      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
505    o pkg/seaice:
506      - add basal stress as parameterisation for grounding ice
507        following Lemieux et al. (2015)
508      - turn on by setting new parameter SEAICEbasalDragK2 to a value
509        larger than 0. Lemieux et al. (2015) recommend 15.
510      - The adjoint complains with extra recomputations so there is also a
511        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
512        order to postpone the problem
513      - compile the new code in lab_sea
514    o verification/halfpipe_streamice:
515      - update both TAF and OpenAD adm output (machine truncation differences)
516    
517    checkpoint65v (2016/04/08)
518    o verification/advect_xz:
519      - increase overlap size from 3 to 4 and add new secondary test for PQM
520        advection scheme (with mono & wino limiter).
521      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
522    o model/src:
523      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
524        added phi0Ref) to set vertical axis origin and phiRef origin;
525        keep Ro_SeaLevel for backward compatibility (with a warning).
526       According to coordinate and fluid type:
527        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
528        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
529        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
530        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
531      - remove Ro_SeaLevel from ATM experiment parameter files;
532      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
533        complement; update output.txt (changes at machine truncation level).
534    o pkg/seaice/seaice_evp.F
535      - simplify computation of deltaZ and zetaZ to simple averaging following
536        Bouillon et al. (2013). This removes a lot of code, but also changes
537        verification experiment lab_sea.hb87 -> updated
538    
539    checkpoint65u (2016/03/14)
540    o pkg/generic_advdiff:
541      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
542        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
543        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
544        testing and not for actual use.
545    o model/src:
546      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
547        origin r = rF(1);
548      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
549        in EOS for height coordinate: enable to include NH Pressure or to use
550        more accurate pressure vertical profile; options not linked to EOS type
551        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
552      - start to implement variable gravity (along vertical): for now, only with
553        z-coords (not even z*).
554      - add Ideal Gas equation of state for height coordinate.
555      - update OpenAD output (affected at machine truncation level) of exp:
556        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
557    o pkg/exf:
558      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
559        of exf interpolation (before any rescaling, rotation or interpolation
560        to velocity point) for each field that gets loaded from file. This option
561        identically mimics the input file organization (e.g. record numbers in year
562        by year input files) besides the change in horizontal grid.
563      - add rotateStressOnAgrid run-time switch so that wind stress fields
564        can be provided on the A-grid in zonal/meridional direction and
565        rotated on the fly. This only applies to the case when the exf
566        interpolation is off and rotateStressOnAgrid is false by default.
567    o model/src:
568      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
569        it's also used with pkg/atm_phys) and add few more parameters (but still
570        inactive, src code yet to come)
571    
572    checkpoint65t (2016/02/10)
573    o pkg/atm_phys:
574      - from Ruth Geen: add optical depth dependence on CO2 concentration.
575    o model/src:
576      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
577        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
578        Update output of exp. deep_anelastic (changes at truncation level).
579    o tools:
580      - add a hack in "remove_comments_sed" (used only with TAF) for recent
581        version of OpenMPI (shipped with FC.23): comment out the new header
582        file "mpif-sizeof.h" which causes problems to TAF.
583    o pkg/seaice:
584      - change the termination criterion so that maxits (SEAICElinearIterMax)
585        has an effect
586      - unify iteration parameters for implicit solvers (JFNK and Picard)
587        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
588        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
589        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
590        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
591        SEAICEnonLinTol     replaces JFNKgamma_nonlin
592      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
593      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
594        use with SEAICEuseKrylov
595    o pkg/seaice/seaice_lsr.F
596        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
597        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
598        an effect.
599    o pkg/seaice: add two new parameters
600      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
601        parameter is not in any namelist)
602      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
603        a preconditioner for the non-linear Newton iteration of the JFNK
604        solver
605    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
606      affects some experiments at truncation level:
607      - global_ocean.cs32x15.icedyn (11 digits),
608      - global_ocean.cs32x15.seaice (11 digits),
609      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
610      - also update global_ocean.cs32x15 adjoint and tangent-linear results
611    o pkg/salt_plume & pkg/thsice:
612      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
613        connect salt_plume flux to ATM-OCN coupling pkgs interface:
614       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
615         export to coupler interface) even without compiling pkg/salt_plume ;
616       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
617         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
618    o pkg/dic:
619      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
620        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
621        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
622      - move also update with values from ATM-OCN Coupler in the same new S/R
623        (previously done in ocn_apply_import.F).
624    o tools/adjoint_options:
625      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
626        has been changed on Jan 14, 2016.
627    o pkg/ggl90:
628      - add alternative discretisation of vertical shear (off by default), to
629        compute the mean (@ grid-cell center) of vertical shear compon instead of
630        vertical shear of mean flow (@ grid-cell center).
631      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
632        results on adjacent faces of cubed-sphere grids; this fix the restart.
633    o pkg/atm_compon_interf:
634      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
635        pass last value, stored directly before export to CPL ;
636        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
637      - remove atmSLPr from pickup files (no longer needed for restart)
638    
639    checkpoint65s (2016/01/13)
640    o eesupp & genmake2:
641       - first check for Function ETIME and, if it fails, then check for subroutine
642         ETIME and consistent output; use the appropriate version in timers.F
643    o model/src:
644      - to check restart test, add option to apply EXCH to U,V earlier, just before
645        integr_continuity; turned off by default.
646    o pkg/dic:
647      - remove CPP option USE_ATMOSCO2 (not needed)
648    o tools/tst_2+2:
649      - try to ignore difference between +0 and -0 in binary file, causing test
650        to fail for no good reason.
651    o eesupp & genmake2:
652      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
653        but also check (in genmake2) that test runs and returns meaningful results.
654    o coupler pkgs:
655      Finish implementation of optionally-exchanged variable switches (started on
656       Nov 12) with addition of few more exchanged fields, including 2-way exchange
657       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
658       advection in OCN component; this requires sequential coupling.
659      coupler (pkg/atm_ocn_coupler):
660      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
661        routines (useful for debug).
662      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
663         flux, DIC fields) if corresponding switch is ON.
664      - add option to export RunOff to OCN (to use for DIC river input)
665      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
666      components (pkg/atm_ & ocn_compon_interf):
667      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
668        optionally exchanged fields; add a check & stop in cpl_readparms.F.
669        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
670        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
671      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
672        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
673      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
674      - hold in common block coupler optionally-exchanged variable switch
675        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
676      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
677        this is intended to replace the OCN cplFldtave.* output files (not updated
678        to contain new additional exchanged fields).
679    o pkg/dic:
680      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
681    o pkg/thsice:
682      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
683        and writing of thsice pickup files.
684    o pkg/atm_compon_interf:
685      - move all field individual export-call out of cpl_export_import_data.F
686        into new S/R ATM_EXPORT_FIELDS
687    o pkg/atm_compon_interf:
688      - store state variables (for now, only thSIce fields) just before beeing
689        exported (in cpl_export_import_data.F, like on ocean side) instead of from
690        atm_store_my_data.F like all exported fluxes.
691      - new version of pickup_cpl: write field names into meta file and read meta
692        file to find field postion in pickup. Also only write/read fields meeded for
693        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
694    o pkg/dic:
695      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
696    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
697        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
698        value can be from domain [0,1] to average between the two methods
699    o pkg/atm_phys:
700      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
701        hold fixed in time).
702    
703    checkpoint65r (2015/12/21)
704    o pkg/seaice:
705        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
706        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
707    o pkg/seaice:
708      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
709        when SEAICEscaleSurfStress=.TRUE.,
710      - apply areaW and areaS in S/R seaice_calc_lhs
711    o pkg/atm_phys:
712      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
713        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
714        for individual contribution (convection, LSC cond, radiation)
715      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
716        information); activated with: solar_exponent=0. and wv_exponent=-1.
717    o pkg/ggl90:
718      - within IDEMIX add upper limit for horizontal group velocity to
719        avoid instability problems in the explicit horizontal diffusion term for
720        long time steps or high resolution
721    o pkg/diagnostics:
722      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
723        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
724    o testreport:
725      - remove "-v" (verbose option) in default mpirun command.
726    o pkg/seaice/seaice_growth:
727      - catch potential division by zero in ITD code, does not change
728        verification results
729    o pkg/ecco:
730      - retire old codes to the Attic. The calls to retired functions are
731        left in a commented form in case they ever need to be re-activated.
732      - ecco_check.F: issue warning if any old CPP option is
733        defined that corresponds to retired codes -- then stop.
734    o pkg/atm_compon_interf:
735      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
736        coupler: use last time-step value instead of average over cplSendFrq_iter
737        time-step, similar to what is done for seaIceMass.
738        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
739    o eesupp & genmake2:
740      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
741        <= remove until a fix is found for some ifort version on ia32 machine.
742    o pkg/seaice/seaice_evp:
743      - refine residual computation
744    
745    checkpoint65q (2015/11/18)
746    o pkg/seaice/seaice_evp:
747      - fix residual computations so that they no longer affect the actual
748        simulation code
749      - fix seaice_readparams to be able to actually set new parameters
750        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
751    o model/src:
752      - fix wrong truncation (single prec) from "FLOAT" function in expressions
753        like: deltaT*FLOAT(myIter) when myIter is large:
754         a) replaced by DFLOAT (if not seen by TAF);
755         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
756    o pkg/aim_v23:
757      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
758        when pickupSuff is set ; do write rolling pickups + at the end of the run.
759    o pkg/atm_ocn_coupler + ocn_compon_interf:
760      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
761        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
762        add corresponding call in DO_OCEANIC_PHYS.
763    o coupler pkgs:
764      Start a new way to set-up optionally-exchanged variables (previously, only
765       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
766       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
767       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
768       compononent param default can be set accordingly).
769      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
770       but rather applies to a group a fields (going both ways like for DIC)
771       and corresponds to an option of coupling config.
772      coupler (pkg/atm_ocn_coupler):
773      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
774        and read namelist directly (without eessup S/R calls) instead of
775        in the very un-flexible old way, 1 param per line, in fixed order;
776      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
777        cleanly in CPL_CHECK_CPLCONFIG
778      - add new coupling-exchange selectors (some not yet active) including
779        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
780                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
781      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
782        component ; called directly from coupler.F, after comp. registrations;
783      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
784         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
785          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
786      components (pkg/atm_ & ocn_compon_interf):
787      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
788        CPP header file in all pkg source files.
789      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
790        ATM/OCN_CHECK_CPLCONFIG;
791      - add error-counter to track errors (e.g., in "data.cpl") and to stop
792        cleanly in ATM/OCN_CHECK_CPLCONFIG;
793      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
794        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
795        before PACKAGES_READPARMS;
796      verification/cpl_aim+ocn/:
797      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
798        "data.cpl" for coupler (in input_cpl).
799    o eesupp/inc:
800      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
801        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
802        to always cumulate tile local-sum in the same order (still uses
803        MPI_Allreduce like standard code).
804      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
805        that are now identical to standard version (in eesupp/inc).
806    o pkg/shelfice:
807      - add SHELFICETransCoeffTFile for initializing spatially varying
808        heat and salt transfer coefficients
809    o pkg/atm_compon_interf & ocn_compon_interf:
810      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
811        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
812      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
813    o pkg/atm_ocn_coupler:
814      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
815    o pkg/rbcs:
816      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
817        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
818      - add a short report (to STDOUT) about RBCS-mask settings.
819    
820    checkpoint65p (2015/10/23)
821    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
822        there is no adjoint test for EVP, we don't know what it does to the adjoint
823        solution, but at least there are no more recomputation warnings left
824    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
825        a chance of giving the same results as a fully converged VP (JFNK) solver
826    o tools/adjoint_options/adjoint_diva:
827      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
828    o pkg/streamice:
829      - spotted bug in streamice_driving_stress using dyG where should have been dxG
830    o pkg/exf:
831      - remove STOP statement that prevented to use wind or (wind-)stress
832        interpolation for constant-in-time forcing fields (wind/stress period = 0).
833    o pkg/seaice:
834      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
835        5 additionals 2D fields and 6 new store directives
836      - change logic in seaice_readparms.F: EVP code can now be turned on in
837        various ways, setting SEAICE_deltaTev is no longer required,
838        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
839        or SEAICEaEVPcoeff
840    o pkg/shelfice/shelfice_thermodynamics.F
841      - redefining uLoc/vLoc to u/v, instead of 2u/v
842    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
843      - this is an intermediate state of a truely converging EVP that has
844        the potential of outperforming implicit VP methods, I do not recommend
845        using it yet.
846      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
847        and all parameters are hardwired
848      - for convergence it still requires very smooth regularisations, that means,
849        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
850        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
851        specific averaging appears to be required, still subject to tuning
852      - still needs cleaning and I need to turn parameter into runtime parameters
853      - add code to compute and print residuals of iteration, compile with
854        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
855    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
856      that entered with r1.54 on Sep04, 2015, -> update results
857    
858    checkpoint65o (2015/09/14)
859    o pkg/mom_vecinv & mom_common:
860      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
861        called from there.
862      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
863        allows to use Vector-Invariant form in deep atmos and anelastic formulation
864    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
865      and Koenig-Beatty+Holland (2012)
866      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
867      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
868      - requires an extra input argument for S/R seaice_calc_viscosities
869      - tensileStrength's depth dependence is different from Itkin et al. (2015)
870        (to be changed and played with, for now exponential)
871    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
872      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
873        by AREA according to Connelly et al. (2004), JPO.
874      - For EVP and the LSR solver, the implicit part of the drag term is
875        the only non-zero term in the denominator when there is no ice (which
876        prevented running the model with zero ice-ocean drag). If
877        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
878        (or zero main diagonals BU/BV) which need to be caught. A practical
879        consequence is that for open water, the momentum equation reduce
880        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
881        they happen to be zero, often leading to a non-zero solution over
882        open water.
883    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
884        efficient EVP method.
885      - introduce area-weighted averages for e12 (analogously to
886        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
887        remain, but also changing the order of terms in the previous average
888        changed the results as much) -> update experiment
889      - add SEAICE_DELTA_SMOOTHREG code
890      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
891        TEM-code
892      - adjust loop bounds so that only required fields are computed
893      - add new averaging code for zetaZ/deltaZ (again similar to
894        seaice_calc_viscosities.F), inactive by default for now (will change
895        results again), but will replace old code eventually
896    o eesupp/src:
897      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
898        to always cumulate tile local-sum in the same order
899        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
900        Still uses MPI_Allreduce (like standard code) but on array of tiles
901        and should be faster than GLOBAL_SUM_SEND_RECV code.
902      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
903        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
904      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
905         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
906         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
907         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
908         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
909    
910    checkpoint65n (2015/07/29)
911    o pkg/thsice:
912      - add a warning when used with pkg/aim but without updating SST
913        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
914    o pkg/offline:
915      - change where Offline-Fields are loaded, from load_fields_driver.F to
916        directly within FORWARD_STEP, just after updating iter number and time;
917      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
918        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
919       These changes allow:
920        a) to recover exactly on-line results using deltaToffline=deltaTClock,
921        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
922        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
923        time-step, both with GM & KPP files and with recomputing these fields;
924        b) no needs to switch on staggerTimeStep anymore;
925        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
926      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
927    o pkg/offline:
928      - change (rarely used) offset-iteration parameter to an offset time (in s):
929        can easily recover previous offset-iter effect by setting offset-time
930        (offlineTimeOffset) to offset-iter x deltaToffline;
931      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
932        in KPP as part of surface buoyancy forcing) in offline run.
933      - fix ptracers KPP non-local term in the case where KPP is re-computed.
934    o OpenAD
935      - Adding preliminary ggl90 test to OpenAD verification.
936        Config. with ggl90 currently diverges after 64 time steps
937        so will need more work to become more stable
938      - Adding preliminary kpp test to OpenAD verification.
939        required small tweakes in kpp_routines.F
940      - Merge and update from Krishna Narayanan's contrib area:
941        * Add one variable for preliminary OpenAD DIVA
942        * Add replacement time-stepping for OpenAD DIVA
943        * genmake2 flag -diva (but only for OpenAD; preliminary)
944        * required modifs for OAD_support
945        successful preliminary test for tutorial_global_oce_biogeo/
946    o pkg/seaice:
947      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
948      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
949        delta with a smooth function in s/r seaice_calc_viscosity
950        (no effect on EVP)
951      - rename local suffix "sqr" into "sq" for more consistent variable names
952    o pkg/seaice:
953        add new parameter SEAICE_deltaMin that is used ***only***
954        for regularizing Delta (and nothing else, like the parameter
955        which is also used for all sorts of things SEAICE_EPS).
956        Defaults to SEAICE_EPS for backward compatibility only.
957    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
958        the wrong key by inialising it before use -> fixes a recomputation
959        problem but does not fix the gradient
960    o pkg/layers:
961      - move resetting of flux arrays to outside the iLa loop
962        (this caused layers_diapycnal to not work with more than one layer coord.)
963      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
964    o pkg/layers:
965      - remove from common block 3D layers fields (used to diagnose transport
966        in tracer coords) and declare them as local arrays in layers_calc.F
967    o pkg/seaice:
968      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
969        in lab_sea forward experiment (changes results -> updated)
970      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
971    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
972       computations; for SEAICE_VECTORIZE_LSR
973      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
974        sweep to the outside,
975      - remove store directives and add "CADJ loop sequential" directives
976        in analogy to model/src/solve_tridiagonal.F
977      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
978        boundaries to yield more readable code. This has also the charming side
979        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
980        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
981        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
982        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
983        an additional option)
984       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
985       but the adjoint gradients (which are affected by this change) still explode.
986    o coupler (atm & ocn _compon_interf):
987      - avoid using Exch2 IO mapping if not suitable.
988    
989    checkpoint65m (2015/06/15)
990    o pkg/layers:
991      - clean-up old parameters setting (from Sep 2012):
992        + remove old parameters setting from common block (declared locally);
993        + stop if any old parameter is mixed with new parameters;
994        + check for valid or consistent parameter setting (e.g., layers_name)
995      - check that layers_bounds for Pot.Density are in the right range;
996        this is supposed to catch un-updated setting after recently shifting
997        potential density field "prho" by -1000 (now in "sigma" scale).
998    o pkg/layers:
999      - Added missing call to layers_fill for keeping track of tottend in
1000        pkg/diagnostics/diagnostics_fill_state.F
1001    o pkg/layers:
1002      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
1003        of diapycnal fluxes
1004    o pkg/layers:
1005      - reverted changes to interpolation to previous treatment; there
1006        was never actually a problem
1007    o pkg/layers:
1008      - fix interpolation of layers tracers in the presence of partial cells
1009      - add lots of new functionality to compute water mass transformation
1010        (enabled by CPP flag LAYERS_THERMODYNAMICS)
1011      - add new calls from main code (diags_oceanic_surf_flux.F,
1012        thermodynamics.F, impldiff.F) and gad to save the necessary fields
1013        for layers_thermodynamics calculations
1014    o pkg/ptracers:
1015      - add capability of stepping a passive tracer forward without advection
1016        by setting PTRACERS_advScheme to 0.
1017    o pkg/diagnostics:
1018      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
1019    o pkg/layers:
1020      - shift potential density field "prho" by -1000 for density layer averaging so
1021        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
1022        Note that density bin boundaries (layers_bounds in data.layers) have
1023        to be set accordingly (i.e., shifted, in sigma scale).
1024    o pkg/layers:
1025      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
1026      - fix calculation of layer non-weighted velocity and layer probability
1027      - add diagnostics for pot.density used for layer averaging
1028    o pkg/seaice:
1029      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
1030        positiveness, modify a few comments and improve variable names,
1031      - the changed computation of deltaC affects most seaice-related
1032        experiments at the truncation level.
1033        seaice_itd.thermo is affected by far the most, with
1034        only 7 digits of agreement remaining; update experiments.
1035    
1036    checkpoint65l (2015/05/04)
1037    o pkg/shelfice:
1038      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
1039        factor drKp1 to zero where it is negative (ie. do not use
1040        SHELFICEBoundaryLayer if hFacC>1)
1041      - the same for factor drLoc in shelfice_forcing.F
1042    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
1043        with modules in ptracers, when using testreport option "-small_f"
1044    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
1045      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
1046    o verification/testreport
1047      - add new option -small_f
1048        with this option testreport first makes the target small_f (*.f files)
1049        before running make (all). This is useful for explicit inlining when
1050        all sources need to be full available.
1051    o pkg/exf/exf_interp.F:
1052        remove previous changes related to reverse (decreasing) input grids latitude
1053    
1054    checkpoint65k (2015/04/01)
1055    o pkg/ecco:
1056        fix missing cosphi initialization; use eccoiter in place of optimcycle;
1057        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
1058        instead of active read/write
1059    o pkg/ctrl:
1060        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
1061        instead of active read/write.
1062    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
1063        return if .NOT.useAUTODIFF
1064    o pkg/seaice: add CPP brackets (cost function related).
1065    o model/src:
1066        add useAUTODIFF run time switch.
1067    o pkg/exf/exf_interp.F:
1068        add code to allow input grids with latitude starting in the north (i.e. when
1069        j=1 corresponds to northern edge of field); modify global_with_exf to test
1070        this feature.
1071    o verification/testreport:
1072      - replace "grep -A3" with POSIX conformal sed command, because there are
1073        implementations of grep that cannot do contextual searches
1074      - replace "cat -n" by "nl" (two occurrences), because not all implementations
1075        of "cat" have the option "-n"
1076    o model/src:
1077        add new file gsw_teos10.F that contains 3 functions, more or less a copy
1078        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
1079        convert from conservative to potential temperature. For now they are not
1080        called anywhere.
1081    o pkg/ggl90: make "useIDEMIX" useful
1082      - re-organize code in s/r ggl90_calc a little to move computations that
1083        are different for idemix into separate loops (changes verification
1084        experiment idemix at truncation level, 12 digits remain -> updated)
1085      - requires 2 new 2D fields KappaM, verticalShear
1086      - make hFacI and recip_hFacI local 3D variables that are passed to
1087        s/r ggl90_idemix
1088      - fix and improve some comments
1089    
1090    checkpoint65j (2015/02/25)
1091    o pkg/openad
1092      - synchronize seawater.F with version in model/src: replace routine
1093        body of sw_temp by calling sw_ptmp and fix/add a few comments.
1094    o pkg/mnc:
1095      - change default value of pickup_read/write_mnc params to FALSE
1096        (since few features are missing in reading MNC pickup files).
1097    o model/src:
1098      - change default (background) vertical diffusivity for salt to be the
1099        temperature (background) vertical diffusivity.
1100      - change background vertical diffusivity in vertical mixing pkgs ggl90,
1101        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
1102        This makes ptracers default diffusivity (that uses salt diffKr) more
1103        consistent with vertical mixing schemes.
1104    o verification/testreport:
1105      - fix typo in "-pcls" option ;
1106      - put temp files in /tmp (instead of in local dir)
1107      - add option "-ncad" to use genmake2 new option "-nocat4ad"
1108      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
1109    o pkg/ggl90 (idemix code):
1110      - apply few fixes ; add some missing "_d 0" ; update output of exp.
1111        global_ocean.90x40x15.idemix
1112    o OpenAD
1113      - enable active file I/O and begin removal of work-around code
1114        for OpenAD for handling control variables (memory vs. active files)
1115      - new CPP options file OPENAD_OPTIONS.h
1116      - revert to genarr2d gradient check for hs94.1x64x5
1117      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
1118      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
1119    o tools/genmake2:
1120      - add option for an alternative Makefile (from Martin) where multiple
1121        source files are sent to TAF (instead of all in one file).
1122    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
1123      - code provided by Carsten Eden as an extension of ggl90
1124      - so far the code is turned on within ggl90 by setting a CPP-flag at
1125        compile time; a runtime flag implementation is not yet complete
1126      - tested in new verification experiment global_ocean.90x40x15.idemix
1127    o verification:
1128      - reduce length of the AD test run by half for experiments
1129        global_ocean.cs32x15 (std + thsice) and isomip
1130      - enable active file I/O for OpenAD, adjust verifications accordingly
1131      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
1132    o verification/testreport:
1133      - fix two non-POSIX sed statements so that there are no error messages
1134        on Mac OS X
1135      - replace hostname -s with hostname | sed 's/\..*$//'
1136    o model/src/seawater.F:
1137      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
1138        (following the matlab code), which would have avoided the bug caught
1139        by Matt (see below) in the first place
1140    o pkg/shelfice:
1141      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
1142        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
1143      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
1144        ice-shelf case (i.e., within surface level).
1145      - add config summary in shelfice_check.F
1146      - remove global variable recip_SHELFICElatentHeat and replace by a local
1147        variable recip_latentHeat
1148      - introduce diagnostics for friction velocity uStar (in case of
1149        SHELFICEuseGammaFrict)
1150      - change verification experiment isomip.htd:
1151        + start from pickup (as input_ad at nIter0=8640)
1152        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
1153        + test SHELFICEuseGammaFrict = .TRUE.
1154        + test SHELFICEadvDiffHeatFlux = .TRUE.
1155    o model/src:
1156      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
1157        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
1158        update output of experiments global_with_exf.yearly and isomip (all 6).
1159    o pkg/shelfice:
1160      - change setting of kTopC to also be zero where there is no ice-shelf.
1161      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
1162        ice-shelf is.
1163      - first attempt to get RealFreshWaterFlux effects: for now, only without
1164        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
1165    o pkg/seaice: add the option to prescribe a fixed thickness PDF
1166      for thermodynamic calculations
1167      - because of divisions of the type 7/7 not exactly equal to 1, this change
1168        affects results of some verification experiments by up to 4 digits:
1169        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
1170        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
1171        adjoint: lab_sea, lab_sea.noseaicedyn
1172        -> updated
1173    
1174    checkpoint65i (2015/01/23)
1175    o model/src:
1176      - change units of frictionHeating field from W to W/m^2
1177      - fix bug in frictional heating from stratospheric drag in
1178        S/R ATM_PHYS_TENDENCY_APPLY_V
1179      - with synchronous time-stepping: move resetting to zero of frictionHeating
1180        field from load_fields_driver.F to thermodynamics.F ;
1181      - add diagnostics for frictional heating.
1182    o model/src & gmredi K3D:
1183      - add frictionHeating field to pickup-files (for synchronous time-stepping)
1184      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
1185      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
1186        and name in pickup file).
1187      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
1188    o model/src:
1189      - move (from ini_forcing.F) initialisation of all arrays in header file
1190        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
1191        (since Nov 2012) with option selectAddFluid=1.
1192    o pkg/shelfice:
1193      - change units (+ document) of newly added field "shelfIceMassDynTendency"
1194      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
1195    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
1196    o pkg/seaice: two new runtime parameters:
1197      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
1198        long overdue
1199      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
1200        parameterization of tensil stress for fast ice (does not do anything yet)
1201    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
1202        for LSR: move checking overlaps out of JFNK-if-block
1203    o pkg/atm_phys:
1204      - move copy of grid and dynamical fields out of atm_phys_driver.F into
1205        new S/R ATM_PHYS_DYN2PHYS.
1206      - fix level height for Linear Free-Surf case (to be consistent with
1207        fixed-in-time pressure levels).
1208    o pkg/mom_common (bottomdrag):
1209      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
1210        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
1211        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
1212    o pkg/shelfice (u/v_drag):
1213      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
1214      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
1215        (now similar to shelfice_u_drag.F)
1216      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
1217        from mom_vecinv.F (similar to mom_fluxform calls).
1218    o pkg/mom_common (bottomdrag):
1219      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
1220      - add options for alternative discretisation of velocity norm in quadratic
1221        bottom drag: averaging of grid-cell-center KE to U.point and V.point
1222        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
1223        improves when averaging only the other component (e.g. vVel for U bottom
1224        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
1225      - add options (bottomVisc_pCell) to account for partial-cell in bottom
1226        friction (no-slip BC) thus getting the true distance from the bottom;
1227        off by default since this also reduces model stability (explicit bottom
1228        friction). Changes produce different machine truncation with linear-drag
1229        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
1230        front_relax (bvp & mxl, 10 & 11 digits).
1231    o model/src & mom pkgs:
1232      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
1233        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
1234      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
1235        just copy level Nr value to level Nr+1.
1236    o doc:
1237      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
1238    o pkg/shelfice:
1239      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
1240        SHELFICE.h: move array shelficemass to init_varia, initialise
1241        from array shelficemassinit, which is set in init_fixed and
1242        has option to be set from file; introduce array
1243        shelficeMassDynTend array, set thru file in init_fixed
1244      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
1245        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
1246        pkg/streamice
1247      - shelfice_thermodynamics.F: call shelfice_step_icemass if
1248        SHELFICEMassStepping = .true.
1249      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
1250    
1251    checkpoint65h (2014/12/17)
1252    o verification/global_ocean.90x40x15, global_ocean_ebm:
1253      - update to generic controls.
1254    o pkg/ctrl:
1255      - ctrl_map_ini_genarr.F: test for igen>0
1256      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
1257      - move gentim2d part of ctrl_map_ini_genarr.F to
1258        new separate routine : ctrl_map_ini_gentim2d.F
1259      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
1260        add time variable weights and cyclic controls (time mean,
1261        seasonal cycle, etc) capabilities to gentim2d
1262    o pkg/ecco:
1263      - move reading of error, conversion to weights from
1264        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
1265    o global_oce_llc90, cs32:
1266      - activte sbo.
1267      - CTRL_SIZE.h : add maxCtrlProc.
1268      - activate the new genctrl capabilities.
1269      - update following reorganization of global_oce_input_fields.tar.gz  
1270    o pkg/ctrl/ctrl_ad_diff.list:
1271      - add missing ctrl_init_rec.f
1272    o tools/OAD_support/keepOriginal:
1273      - add ctrl_init_rec.F
1274    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
1275      - avoid recomputations of xx_gentim2d_dummy.
1276    o momentum diagnostics:
1277      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
1278        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
1279    o pkg/seaice/seaice_lsr.F:
1280      - fix computation of BU/BV, make sure they are non-zero, only necessary
1281        for cubed sphere exchanges and SEAICE_OLx/y>0.
1282        This makes calling s/r fill_cs_corner_rl obsolete (removed).
1283    o verification/global_ocean.cs32x15/input.seaice
1284      - add test for strong implicit coupling and restricted addtive Schwarz
1285        methods for LSR
1286      - update results/output.seaice.txt
1287    o verification/tutorial_global_oce_biogeo:
1288      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
1289        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
1290        update output_adm,_oadm,_tlm.txt
1291    o pkg/dic:
1292      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
1293      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
1294        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
1295    o verification/tutorial_global_oce_biogeo:
1296      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
1297        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
1298        update output_adm,_oadm,_tlm.txt
1299    o eesupp/src:
1300      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
1301        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
1302    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
1303      LSR (following Hutchings et al. 2004)
1304      - introduce zetaZ as a global variable (requires adjustments in
1305        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
1306        in seaice_calc_viscosities.F
1307      - new flag SEAICEuseStrImpCpl (default off)
1308      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
1309        momentum equations
1310      - JFNK-solver (preconditioner) adjusted to allow using this method
1311        (where it does not have any positive effect)
1312    o pkg/seaice
1313      - add overlap for restrictive additive Schwartz method also to LSR, but
1314        turn it off by default (because it only seems to work for non-cubed
1315        sphere/llc topologies)
1316    o pkg/autodiff
1317      - add extra exchanges in addummy_in_steppging also for mnc output
1318    o pkg/seaice:
1319      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
1320        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
1321    o pkg/obcs:
1322      - add option to specify domain-connected piece Id along OB though files
1323        (for now, only used to diagnose PhiVel; default =1 -> global correction)
1324      - modify obcs_diag_balance.F to process each connected-part separately;
1325        exclude OB where Id = 0 but keep the full divergence there (-> constant
1326        Psi along this portion of OB and all inflow derived from grad(Phi))
1327      - add example of OB-conect files in verification/so_box_biogeo/input.
1328    o pkg/diagnostics:
1329      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
1330      a) use non zero matrix element across OB and solve for Phi 1 grid point
1331         outside OB (i.e, where tracer OBCS are applied).
1332      b) global imbalance of inFlow/outFlow across OB: instead of modifying
1333         velocity across OB, spread it uniformly along the OB in the RHS.
1334    
1335    checkpoint65g (2014/11/19)
1336    o pkg/diagnostcis:
1337      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
1338    o pkg/my82,pp81,kl10:
1339      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
1340        field diffKr as background diffusivity to set minimum diffusivity value.
1341    o pkg/seaice:
1342      - add new parameter SEAICEuseEVPrev (for revisited EVP by
1343        Bouillon et al 2013)
1344      - add SEAICE_evpAlpha/Beta to namelist
1345      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
1346        involve trivial re-ordering of divisions/multiplications that should not
1347        have any effects, but ... they do change the results of lab_sea.hb87 so
1348        that only 2 digits of agreement remain, in line with the general
1349        instability/fragility of the evp-code. For now, I do not care and just
1350        update the verification experiment
1351    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
1352      - remove xx_genarr2d_numsmooth etc
1353      - use xx_genarr2d_preproc etc instead
1354      - carry out smooth_correl2D at initialization stage rather than during
1355        time stepping.
1356      - get smoothOpNb from xx_gentim2d_preproc
1357    o global_oce_cs32 :
1358      - add test of generic ecco capabilities.
1359    o pkg/exf/exf_getsurfacefluxes.F :
1360      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
1361    o pkg/ctrl,ecco :
1362      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
1363        is defined.
1364    o pkg/seaice: add diagnostics for Delta (deformation parameter)
1365    o model/src:
1366      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
1367        diffusivity (background) is specified but ignored.
1368    o verification:
1369      - in testreport, convert hostname to lower case for default output dir name
1370    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
1371    o pkg/dic: add modifications from Hajoon:
1372      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
1373      - light attenuation: add self-shading effect by climatological Chlorophyll
1374        (read from file).
1375    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
1376        compiles when SEAICE_ALLOW_DYNAMICS is undefined
1377    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
1378        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
1379        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
1380        approach where CPP_OPTIONS.h includes an omnipotent
1381        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
1382    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
1383        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
1384    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
1385        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
1386        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
1387    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
1388      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
1389      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
1390      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
1391      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
1392    o pkg/ctrl,ecco,exf :
1393      - remove variables associated with NON-generic costs,
1394        unless ECCO_CTRL_DEPRECATED is defined.
1395      - remove NON-generic NON-obcs controls,
1396        unless ECCO_CTRL_DEPRECATED is defined.
1397    o pkg/ctrl : added ctrl_local_params.h
1398    o pkg/ecco : added ecco_local_params.h
1399    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
1400        experiments, which will progressively be removed once the
1401        experiments are revised to use only generic controls/costs.
1402    
1403    checkpoint65f (2014/10/13)
1404    o pkg/ctrl, ecco, seaice : minor changes in headers
1405    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
1406        cost function and control capabilities added since checkpoint65c.
1407    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
1408    o pkg/ecco: increase modularity and improve logic
1409      - ecco_toolbox.F (new) : basic operations that are often used,
1410        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
1411        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
1412      - cost_gencal.F (new) : determine filnames and records.
1413      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
1414      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
1415        and exploit the above functions leading to more compact code.
1416      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
1417      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
1418        using_ers, using_gfo, using_mdt is now only defined within gencost)
1419    o pkg/ecco: extend generic cost capabilities
1420      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
1421        capabilities via gencost_preproc (+ _c,_i,_r related params),
1422        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
1423        gencost_outputlevel arguments to cost_generic
1424      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
1425        and active_read, making room for gencost_preproc to take effect.
1426        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
1427      - pkg/ecco/cost_generic.F :
1428        compute and store misfit maks*(model-data) in localdif that is
1429        then used in cost and for output, output misfit if outlev.GT.0
1430      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
1431        rather gencost_barfile for deciding whether to write barfile
1432      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
1433      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
1434        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
1435      - pkg/ecco/ecco_summary.F : report gencost variables
1436      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
1437    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
1438    o pkg/ecco: internal re-organization
1439      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
1440        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
1441        mv relevant variables definition from ecco_cost.h to ecco.h,
1442        make sure gencost routines only include ecco.h)
1443      - throughout : add missing CCP switches, rm unused variables,
1444        and rm un-necessary CPP switches
1445      - throughout gencost routines : replace modelstartdate with
1446        gencost_startdate when needed
1447      - cost_bp_read.F : use arguments, instead of common blocs
1448        so that it can be used also by (new) cost_gencost_bpv4.F
1449      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
1450      - ecco_phys.F : compute etanFull
1451      - ecco_readparms.F : rename using_topex as using_tpj, add
1452        bpv4-grace to gencost list, initialize added parameters
1453      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
1454    
1455    checkpoint65e (2014/09/28)
1456    o pkg/obcs:
1457      - replaced the just-added CPP options with run-time variables
1458        (see pkg/obcs/OBCS_PARAMS.h for details)
1459    o pkg/obcs:
1460      - add additional CPP options for sponge boundary layers
1461        (see pkg/obcs/OBCS_OPTIONS.h for details)
1462    o pkg/atm_phys:
1463      - implement simple (obliquity only, assuming circular planet orbit)
1464        seasonal cycle for incoming insolation ; used when run-time parameter
1465        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
1466    o pkg/exf, pkg/ecco, pkg/ctrl:
1467      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
1468      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
1469      - implement gentim2d for xx_tauu, xx_tauv
1470    o pkg/ctrl, pkg/ecco :
1471      - fix and complement the generic controls implementation
1472    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
1473        pkg/shelfice/shelfice_thermodynamics.F,
1474        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
1475        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
1476      - add weight in CTRL_GET_GEN calls
1477    o pkg/ctrl :
1478      - ctrl_get_gen.F : add weight as input parameter, and apply
1479        it directly rather than using smooth_correl2Dw (to be retired).
1480      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
1481    o pkg/ctrl :
1482      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
1483        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
1484      - re-activate ctrl_summary (call in ctrl_init.F)
1485    o pkg/ctrl/ctrl_cost_gen.F :
1486      - fix CCP brackets, remove un-necessary myiter, mytime
1487    o pkg/ecco, pkg/ctrl :
1488      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
1489      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
1490      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
1491      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
1492    
1493    checkpoint65d (2014/09/15)
1494    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
1495      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
1496        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
1497    o pkg/ctrl/ctrl_map_ini_genarr.F :
1498      - remove compilation failure
1499      - replace hard coded example
1500      - use ctrl_map_ini_gen2D, 3D
1501    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
1502      - on/off switch based upon xx_genarr2d_weight,3d
1503    o src/packages_init_variables.F :
1504      - regroup pkg/estimation calls
1505      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1506        (moved to ctrl_init_variables)
1507    o cost/cost_init_varia.F :
1508      - remove ecco_cost_init_varia
1509        (moved to ecco_init_varia)
1510    o ctrl/ctrl_init_variables.F :
1511      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1512      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
1513    o ctrl/ctrl_map_ini.F :
1514      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
1515        (moved to ctrl_init_variables)
1516    o ctrl/ctrl_map_ini_ecco.F :
1517      - remove ECCO_PHYS (mv to ecco_init_varia)
1518      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
1519    o ecco/ecco_ad_diff.list :
1520      - add ecco_init_varia.f
1521    o ecco/ecco_init_varia.F
1522      - new routine
1523    o pkg/streamice:
1524      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
1525        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
1526      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
1527    o pkg/generic_advdiff:
1528      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
1529    o pkg/exf:
1530      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
1531         xxg_precip capability
1532      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
1533    o pkg/ctrl:
1534      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
1535    o model/src/load_fields_driver.F :
1536      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
1537        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
1538    o OpenAD verification experiments:
1539      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
1540        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
1541        for now, only in pkgs used in OpenAD verification experiments.
1542      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
1543        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
1544        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
1545        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
1546    o OpenAD verification tests:
1547      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
1548      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
1549        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
1550      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
1551        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
1552    o model/src & generic_advdiff:
1553      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
1554        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
1555        dynamics requires valid tracer forcing only over tile interior but, for
1556        some diagnostics, may need to extend it over 1 point in tile halo region.
1557      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
1558        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
1559        setting in temp/salt/ptracer_integrate.F
1560    o pkg/dic:
1561      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
1562        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
1563        in gchem_forcing_sep.F
1564    o pkg/autodiff & obcs:
1565      - add storage of current OB values for U & V (was already done for T & S).
1566    
1567    checkpoint65c (2014/08/30)
1568    o pkg/dic:
1569      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
1570        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
1571        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
1572    o verification:
1573      - new experiment testing OBCS and DIC pkgs, using params & output from
1574        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
1575        passage: take OBCS from the last year of a 2 yrs simulation and initial
1576        conditions from t=1.yr while keeping the same forcing.
1577    o model/src:
1578      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
1579        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
1580    o pkg/diagnostics (Stats-Diags):
1581      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
1582        a) refine region where stats are computed, excluding where arrhFac=0 ;
1583        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
1584        c) extend regional stats over the region edges (for U or V pt location).
1585    o pkg/gchem:
1586      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
1587        pkg/dic is currently changing/updating ptracers values beyond the OB).
1588    o verification (hs94):
1589      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
1590        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
1591        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
1592        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
1593    o pkg/ptracers:
1594      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
1595        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
1596      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
1597        with AB-2 code (so that it get tested).
1598    o model/src:
1599      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
1600        with AB-2 code (previously only available with AB-3 code).
1601        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
1602        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
1603        there, by calling CYCLE_AB_TRACER).
1604    o pkg/generic_advdiff:
1605      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
1606        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
1607        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
1608        S/R temp/salt/ptracers_integrate.F
1609    o model/src & pkg/ptracers:
1610      - remove common block variables gT,gS (in DYNVARS.h), except when
1611         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
1612      - remove common block variable gPtr.
1613    o model/src & pkgs:
1614      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
1615         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
1616         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
1617         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
1618      + change accordingly all calling S/R.
1619      - use local temperature/salinity/ptracer tendency array (without bi,bj)
1620        in S/R temp/salt/ptracers_integrate.F
1621    o pkg/seaice:
1622      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
1623        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
1624      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
1625        in seaice_lsr
1626      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
1627        in s/r seaice_lsr_calc_coeffs
1628    o pkg/mdsio:
1629      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
1630        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
1631        too long (e.g., > MAX_LEN_FNAM/2 )
1632    
1633    checkpoint65b (2014/08/12)
1634    o pkg/matrix:
1635      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
1636    o model/src:
1637      - fix initialisation of geothermalFile; compile geothermal-flux code in
1638        natl_box verification experiment.
1639    o model/src & pkg/down_slope:
1640      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
1641      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
1642        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
1643        results at machine truncation level: update output of experiments
1644        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
1645    o pkg/diagnostics (Stats-Diags):
1646      - do not cumulate the full volume when DIAGNOSTICS_FILL is
1647        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
1648        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
1649        times (but Min,Max and StD are still wrong).
1650    o model/src:
1651      - add geothermal flux forcing: read in ini_forcing.F as time-constant
1652        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
1653    o model/src:
1654      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
1655        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
1656        arrays are already updated while adjustments (filters, conv.adjustment) are
1657        still applied later, in S/R TRACERS_CORRECTION_STEP.
1658    o model/src:
1659      - store in common bloc array "rhoInSitu" the virtual potential temperature
1660        anomaly that is used to compute geopotential: this make the atmos code
1661        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
1662    o pkg/seaice/seaice_lsr.F
1663      - rename integer variable ilcall to ipass (that's what it is called
1664        in the residual diagnostics
1665      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
1666        default) for improved non-linear convergence of the first few steps
1667      - adjust a few comments and add new ones to explain some of the store
1668        directives
1669    o pkg/generic_advdiff (& ptracers):
1670      - re-work the code to check for valid advection scheme and for minimum
1671        size of overlap (now stored in local common bloc in gad_advscheme.F)
1672    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
1673      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
1674      - add an auxilliary variable "bet" and fix store directives and keys in
1675        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
1676        less exact gradients in my tests); but there are still
1677        recomputation warning (although gradients are sort of OK), when
1678        SEAICE_LSR_VECTORIZE is not defined, so this flag and
1679        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
1680      - update verification experiments lab_sea.
1681      - change some comments in S/R seaice_calc_viscosities
1682    o model/src:
1683      - if staggerTimeStep=T, always apply exchange to velocity field in
1684        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
1685        (independent of using multi-dim advection or not); no effect on FWD run
1686        but affects AD results (at machine truncation level): update output of
1687        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
1688        and isomip (oad: 12.d).
1689    o pkg/generic_advdiff:
1690      - stop if doAB_onGtGs is set to FALSE but ignored
1691      - refine warning related to stability of tracer time-stepping
1692        regarding internal wave dynamics.
1693      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
1694        on staggerTimeStep & implicitIntGravWave (will now get a warning
1695        if potentially unstable).
1696    o pkg/kl10:
1697      - add new pkg "kl10" for mixing due to internal wave breaking, from
1698        http://www.sciencedirect.com/science/article/pii/S1463500310000144
1699        (contribution from Jody Klymak), tested in verification experiment
1700        verification/internal_wave/input.kl10/
1701    o isomip experiment:
1702      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
1703        (input.htd) and update the output.
1704    o cd_code experiments:
1705      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
1706        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
1707        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
1708        update the corresponding output.
1709    o pkg/seaice:
1710      - reduce the number of include files and store directives in
1711        S/R seaice_lsr_tridiagu/v
1712      - change the order of loops in one case in S/R seaice_lsr_tridiagv
1713        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
1714        get rid off one store directive (a TAF bug?)
1715      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
1716        S/R seaice_lsr_tridiagv to change the loop range for consistency
1717      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
1718      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
1719        S/R seaice_lsr_tridiagu/v (requires update of
1720        offline_exf_seaice/input.dyn_jfnk)
1721    
1722    checkpoint65a (2014/07/27)
1723    o model/src:
1724      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
1725        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
1726        (topo in p-coords, ice-shelf in z-coords); update output of experiments
1727        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
1728    o model/src:
1729      - collect momentum forcing tendency into local 2-D array (passed as argument
1730        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
1731        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
1732        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
1733      - collect T & S forcing tendency into local 2-D array (passed as argument to
1734        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
1735        affects results at machine truncation level (e.g., ocean: if using
1736        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
1737        correction due to vertical advection).
1738      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
1739        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
1740        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
1741        obcs_ctrl (ad & fwd grd @ 12 & 7).
1742    o pkg/ptracers & diagnostics:
1743      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
1744        title (to avoid some unexpected truncation); sort out ptracers diags units.
1745      - collect ptracer forcing tendency into local 2-D array (passed as argument
1746        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
1747    
1748    checkpoint65 (2014/07/18)
1749    o pkg/fizhi:
1750      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
1751        affects results at machine truncation level. Update output of experiments
1752        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
1753    o pkg/seaice: more clean up
1754      - rename TAF common block tapes to be more consistent and remove
1755        unnecessary duplicates
1756      - add store directives to remove more recomputations, but use smaller
1757        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
1758        The idea behind this flag is to reduce the memory footprint when the
1759        adjoint of the LSR is not required. As of now, defining the flag
1760        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
1761        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
1762        For experiment offline_exf_seaice, this means on a linux box with gfortran
1763        nearly a factor of 10 (but keep in mind there is mostly seaice code in
1764        this experiment):
1765        > size mitgcmuv_ad
1766        text    data        bss     dec        hex
1767        5100659 1216  220458952  225560827  d71c8fb
1768        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
1769        but only a moderate increase of 36% for global_ocean.cs32x15:
1770        text    data        bss     dec        hex
1771        6695027 1648 1014578664 1021275339 3cdf6ccb
1772        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
1773      - note: there are still recomputations in global_ocean.cs32x15 and
1774        offline_exf_seaice and the gradient agreement changes (gets a
1775        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
1776      - in general, the AD gradients still are wrong
1777    o OpenAD
1778      - clean up code_oad/ directories somewhat by moving files
1779        dontCompile, dontTransform, keepOriginal to OAD_support/
1780    o model/src:
1781      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
1782        (not currently tested): add dissipation terms before NLFS rescaling of
1783        tendencies (previously done after).
1784    o pkg/diagnostics:
1785      - write stats-diags in ascii file with more digits (same as in monitor).
1786    o pkg/down_slope:
1787      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
1788        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
1789    o model/src:
1790      - new file "apply_forcing.F" containing all the code previously in
1791        external_forcing.F, but with new argument list: pass, as new argument,
1792        the current level tendency array to update (instead of a direct update
1793        of the common bloc array). Change the corresponding calls.
1794      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
1795        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
1796    o pkg/seaice/seaice_lsr, a little bit of clean up
1797      - rearrange some code blocks, so that now all calculations for
1798        setting up the right-hand-sides done within one single block
1799        (I find that easier to read and understand)
1800      - rearrange freedrift-code to reduce the number of ifdefs
1801      - adjust some indentations and comments
1802    
1803    checkpoint64z (2014/07/10)
1804    o model/src and several pkgs:
1805      - change argument list of all S/R called from external_forcing.F and
1806        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
1807        to pass, as argument, the current level tendency array to update
1808        (instead of a direct update of the common bloc array).
1809      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
1810      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
1811    o pkg/seaice/seaice_lsr.F
1812      - always initialize local arrays in seaice_lsr_tridiagu/v
1813      - add more local tapes to seaice_lsr_tridiagu/v
1814      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
1815        keep it in bi/bj loop; this seems to be essential
1816      - gradients are still wrong but only by 4-7 orders of magnitude
1817        instead of 15 orders of magnitude, lab_sea improves a little
1818    o pkg/seaice
1819      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
1820        generates unnecessary code in seaice_lsr_ad
1821      - add more store directives in seaice_lsr to avoid unnecessary code
1822        in seaice_lsr_ad
1823      - exclude some residual computations in seaice_lsr when
1824        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
1825        in seaice_lsr_ad
1826      - add more storing, a new tape (model/src/the_main_loop.F) and
1827        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
1828        and klockey should be checked by a specialist)
1829      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
1830        and update lab_sea after previous changes in pkg/seaice below
1831    o pkg/autodiff:
1832      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
1833        viscFacInAd : run time parameters allowing for adjoint switches
1834        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
1835    o pkg/ecco:
1836      - introduce cost_gencost_boxmean.F that computes a box mean
1837        temperature (for use in adjoint sensitivity studies).
1838    o model/src/set_defaults.F : initialize viscFacAdj to 1.
1839    o pkg/mom_common/mom_calc_visc.F:
1840      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
1841    o pkg/seaice/seaice_summary.F:
1842      - statement for SEAICEadjMODE now in autodiff_readparms.F
1843    o pkg/seaice:
1844      - remove some store directives and add new ones in an effort to get
1845        finally rid off the recomputation warnings. This is successful
1846        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
1847        defined (i.e. no extensive recomputation warnings left), but there
1848        are still too many recomputations on the solver iteration level
1849      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
1850      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
1851        SEAICE_SIZE.h
1852      - add a store directive in S/R seaice_calc_viscosities
1853    o pkg/seaice (ITD code):
1854      - fix definition of Hlimit for multi-threaded case
1855      - use double precision arithmetic to compute Hlimit: this affects results;
1856        update output of experiment seaice_itd.
1857    o replace content of verification/seaice_itd
1858      - instead of a 1D column use the configuration of offline_exf_seaice
1859        to test the ice thickness distribution code with ridging
1860      - this is a first shot at this experiment
1861      - change of some defaults of ridging parameters SEAICEhStar (from
1862        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
1863        and lot of new comments.
1864    
1865    checkpoint64y (2014/06/20)
1866    o pkg/seaice/seaice_reg_ridge.F:
1867      - modify the regularization of very small volumes of ice; only check
1868        total volume HEFF, and do not apply correction to individual ice
1869        classes because that leads to funny patterns in the heat and fw-fluxes
1870        into the ocean. Adjust seaice_itd/results/output.txt
1871      - replace nITD by SEAICE_multDim in loop-ranges
1872    o pkg/exf:
1873      - add code to process the case field period = -12. with UV interpolation.
1874      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
1875        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
1876    o verification/global_with_exf:
1877      - switch all fields period to -12. (was previously untested) in input/data.exf
1878        (but keep secondary test ".yearly" unchanged); update the reference output.
1879    o pkg/cal:
1880      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
1881    o pkg/exf:
1882      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
1883        to replace logical switch "exf_verbose"
1884      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
1885    o pkg/sbo:
1886      - update from Katherine Quinn: evaluate mass directly from density and SSH
1887        (budget using Finite Volume method) instead of from bottom pressure.
1888      - allow testreport to collect few selected SBO output ; tested in exp.
1889        global_ocean.90x40x15 (after updating the results, to include SBO output).
1890      - fix some multi-threading issues (in output part).
1891    o model/src & most packages:
1892      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
1893      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
1894        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
1895        "data.{pkg}" exist ; and leave the S/R (return) just after.
1896      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
1897        + call LAND_READPARMS from packages_readparms.F
1898    o pkg/seaice:
1899      - remove code that resets useThSice in S/R seaice_readparms and
1900        replace it by a warning in S/R seaice_check
1901      - remove parameter MULTDIM, replace with nITD and runtime
1902        parameter SEAICE_multDim (still hard-wired to nITD if
1903        SEAICE_ITD is defined)
1904    
1905  checkpoint64x (2014/05/24)  checkpoint64x (2014/05/24)
1906  o verification/lab_sea:  o verification/lab_sea:
1907    - update adjoint and TLM output following changes to pkg/salt_plume    - update adjoint and TLM output following changes to pkg/salt_plume

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