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revision 1.2151 by jmc, Wed May 13 21:39:51 2015 UTC revision 1.2359 by jmc, Thu Oct 19 00:35:45 2017 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/kpp, ggl90 & ebm:
8      - read namelist without IOSTAT=errIO to force to stop if there is an error
9        in the parameter file namelist.
10    o pkg/cheapaml: major changes to relaxation coefficient setting:
11      - rename parameters cheapaml_taurelax & cheapaml_taurelaxocean (in days)
12        to cheap_tauRelax & cheap_tauRelaxOce (now in seconds);
13      - if using cheapMaskFile, set relaxation coeff to: cheapMask/tauRelax
14        (instead of 1/cheapMask over ocean and 1/tauRelax over land);
15      - with cheapMaskFile unset: set relaxation coeff according to land/ocean mask
16        (unchanged) but skip increase near domain edges for periodic domain (in X
17        or Y dir) when cheapamlX/Yperiodic=T ; also fix linear increase (over
18        Cheapaml_mask_width grid points) of coeff towards domain edges (previously
19        was increasing away from edges). Update output of experiment "cheapAML_box".
20    o pkg/cheapaml:
21      - move setting of (fixed in time) relaxation coefficient
22        from cheapaml_init_varia.F to cheapaml_init_fixed.F
23    o pkg/exf:
24      - add specific forcing field for tides to feed model new geopotential anomaly
25        forcing, for now within #ifdef EXF_ALLOW_TIDES.
26      - remove from common block unused params: exf_inscal_sst & exf_inscal_sss.
27    o model:
28      - add new 2-d forcing field for time-dependent geopotential anomaly (e.g.,
29        tidal forcing), in m^2/s^2 ; add run-time param to allow to turn it off.
30    o eesupp/src:
31      - shift standardMessageUnit in eeboot.F and I/O units in mdsfindunit.F
32        for coupling to GEOS AGCM: HACK_FOR_GMAO_CPL option in CPP_EEOPTIONS.h
33    
34    checkpoint66k (2017/09/20)
35    o model/src:
36      - add missing CPP brackets (ALLOW_COST, ALLOW_CTRL in load_fields_driver.F
37        and the_model_main.F)
38    o ctrl:
39      - use zeroRL in place of fc when ALLOW_COST is not compiled (in ctrl_pack.F)
40      - call MDS_READ_FIELD / MDS_WRITE_FIELD instead of deprecated
41        mdsreadfield / mdswritefield (in ctrl_get_gen.F, ctrl_map_ini_gen.F,
42        ctrl_map_ini_genarr.F, and ctrl_map_ini_gentim2d.F )
43    o eesupp:
44      - add CPP option to activate some pieces of code for coupling to GEOS AGCM;
45      - shift commonly used IO unit (in eeboot.F) for coupling to GEOS AGCM.
46    o pkg/bling:
47      - bling_production: Fix typo in calcium carbonate uptake. Also rearranging
48        and cleaning
49    o model/src:
50      - move k loop inside correction_step.F (+ update calling S/R)
51      - collect implicit pressure gradient tendencies in local 2-D array;
52        affect results (at machine truncation level) when using 3-D solver; update
53        output of exp.: exp4 (x1), global_ocean.cs32x15 (x2),hs94.cs-32x32x5.impIGW,
54                        rotating_tank, short_surf_wave,tutorial_deep_convection (x2)
55                        & tutorial_plume_on_slope.
56    
57    checkpoint66j (2017/08/15)
58    o pkg/ptracers:
59      - fix surface forcing under ice-shelf (useShelfIce=T).
60    o pkg/atm_phys:
61      - use hFac weighted average when applying A-grid atm-phys momentum tendency
62        to C-grid dynamics; this ensures wind-stress match mom tendency.
63    o eesupp/src:
64      - change default for opening scratch files to avoid STATUS='SCRATCH'
65      - close scratch files with STATUS='DELETE'
66      - changes affect eeset_parms.F and open_copy_data_file.F and many routines
67        that read namelists (because they close the scratch files)
68      - you can revert to old default by setting USE_FORTRAN_SCRATCH_FILES
69        in CPP_EEOPTIONS.h (tested in ideal_2D_oce/code & lab_sea/code_ad)
70    o pkg/atm_phys:
71      - fix unset arguments in (unused) S/R surface_flux_0d.
72    o eesupp/src:
73      - add argument "procId" to S/R EESET_PARMS to fix  scratchFile1 & 2 setting
74        (case TARGET_BGL or TARGET_CRAYXT) for early call (from eeboot_minimal.F):
75        called with myProcId in eeboot.F and with mpiMyWId in eeboot_minimal.F
76    o pkg/streamice:
77      - remove blank between _EXCH_XY_RL and "()", which my Apple Xcode
78        preprocessor /usr/bin/cpp cannot interpret; 3 instances in total in
79        streamice_driving_stress_fd.F and streamice_advect_2dtracer.F
80    o pkg/diagnostics:
81      - new option to allow to cumulate thickness-factor (hFac) weighted field
82        (if field permitted); implemented by changing sign of "jdiag" pointer
83        (> 0: cumlulate field, < 0: cumulate hFac weighted field).
84        a) restricted to 3-d (Nr levels), level centered diagnostics at U,V or Cell
85           center position (gcode(2)='U','V','M' & gcode(3,5,9:10)='R',' ','MR')
86        b) for now, activated by setting fileFlags 3rd character to 'h'.
87    
88    checkpoint66i (2017/07/18)
89    o pkg/cheapaml:
90      - add parameter "useRelativeWind", default set to False; this change the
91        previous setting which was always using relative wind.
92    o add hooks for the Parallel Data Assimilation Framework PDAF
93        (http://pdaf.awi.de/) in eeboot_minimal.F and the_main_loop.F;
94        to use set CPP-flag USE_PDAF in CPP_EEOPTIONS.h
95    o pkg/exf:
96      - interpolation of vector fields (exf_interp_uv.F): fix bug in calculation
97        of South-Pole mean value.  
98      - interpolation near the poles, case where second additional row is at the
99        pole (or beyond the pole and moved to the pole): change first addition row
100        value to a linear interpolation between pole and 1rst (S.pole)/last (N.pole)
101        row (instead of just a copy of it).
102    o pkg/seaice:
103      - prevent JFNK and KRYLOV solvers from trying to reduce a residual of 0
104      - add the option to compute no-slip du/dy, dv/dx (i.e.
105        the offdiagonal strain rate e12) by a second order approximation
106        on the boundary; works only with JFNK, KRYLOV, or EVP solvers, because
107        it is too messy to implement for the implicit LSR matrix.
108        SEAICE_2ndOrderBC = .FALSE. by default
109    
110    checkpoint66h (2017/06/02)
111    o pkg/seaice:
112      - add new routines to compute stress tensor components and stress tensor
113        divergence to be reused in s/r seaice_lsr and s/r seaice_calc_lhs
114      - change names of diagnostics SIsigI/II (commonly used for invariants)
115        to SIsig1/sig2 (more common for principal components) to avoid confusion
116    o pkf/exf:
117      - add a stop if useRelativeWind with un-updated uwind/vwind (e.g., constant);
118        similarly, stop if rotateStressOnAgrid with constant wind-stress.
119    o pkg/seaice:
120      - remove (comment out) diagnostics SIuwind,SIvwind,SIfu,SIfv (duplicate of
121        EXFuwind,EXFvwind,oceTAUX,oceTAUY) and point them to their equivalent.
122      - add diagnostics of wind-stress over seaice (SItaux,SItauy) and seaice
123        fraction weighted wind stress over ocean+seaice (SIatmTx,SIatmTy).
124    o pkg/diagnostics:
125      - small piece of code to rename (old) diagnostics, when namelist is processed.
126    o model/src:
127      - new run-time param (useMin4hFacEdges) to select method for setting hFacW,S:
128        originally, set as minimum of adjacent hFacC factor ; now (new default)
129        computed from rSurfW,S and rLowW,S by applying same rules as for hFacC.
130        Only matters when useShelfIce=T with particular ice-shelf cavity geometry.
131    o pkg/seaice:
132      - add momemtum advection, off by default, still in test phase
133        most of the momentum advection code is adapted and reused from mom_vecinv
134    o pkg/mom_vecinv:
135      - pass these runtime flags:
136        selectVortScheme, highOrderVorticity, upwindVorticity, useJamartMomAdv
137        as formal parameters to s/r mom_vi_u/v_coriolis, mom_vi_u/v_coriolis_c4,
138        so that these routines can also be used in pkg/seaice.
139    
140    checkpoint66g (2017/04/24)
141    o model/src:
142      - more robust ordering of column thickness integral (=Sum_k(drF*hFac) )
143        to get same expression (regarding machine truncation) in different places
144        in ini_masks_etc.F (e.g., rSurfC,W,S is now exactly zero when it should).
145        Update forward output of experiments: global_ocean.cs32x15 (all 5 except
146        viscA4), isomip (x3), tutorial_global_oce_in_p & tutorial_plume_on_slope.
147    o pkg/shelfice:
148      - ALLOW_SHIFWFLX_CONTROL: move setting of maskSHI from shelfice_update_masks.F
149        to shelfice_init_fixed.F
150      - change S/R SHELFICE_UPDATE_MASKS to SHELFICE_INIT_DEPTHS (still called from
151        ini_masks_etc.F for now) to update ocean upper boundary position according
152        to ice-shelf topography (instead of directly updating hFacC).
153    o model/src:
154      - move call to CTRL_INIT & CTRL_ADMTLM from the middle to the bottom of
155        packages_init_fixed.F to allow other pkgs to set mask and weight fields.
156    
157    checkpoint66f (2017/04/06)
158    o model/src:
159      - add specific run-time param to select level of printed plot-field-maps,
160        set by default to debugLevel. Remove internal param "printDomain".
161    o pkg/seaice:
162      - add flag to add snow mass to seaiceMassC/U/V, the default is
163        SEAICEaddSnowMass=.FALSE., not to change previous results
164    o pkg/bling
165      - Bug fix in bling_production regarding unit conversion for diagnostics
166        being put in the wrong place
167    o model/src:
168      - add back recomputation of rSurfW & S to ensure consistent column thickness
169        (needed for rStar) between Sum_k(hFac*drF) and rSurf-rLow, for now only
170        when using pkg/shelfice; was initially added on 2012/06/01 (ini_masks_etc.F
171        revision 1.51) but was removed accidentally on 2014/02/08 (v1.53).
172    o pkg/autodiff:
173      - clean-up "checkpoint.flow"
174    o pkg/rw (Contribution from Jody Klymak):
175        option to set mds file suffix as function of time in simulation:
176        *) new input parameter "rwSuffixType" (read from PARM03 namelist)
177           to select file suffix format; by default (=0), use iteration number;
178        *) add simple routine to return file suffix according to rwSuffixType;
179        *) in model/src and in most pkgs (except: atm2d, fizhi, regrid & streamice),
180           use new S/R to get file suffix, except for debug output file (diagFreq)
181           and pkgs offline & rbcs input files.
182    o pkg/rw:
183      - uniform processing of "I10" suffix across writing fld routines; used to
184        simplify debug writing of cg2/3d_b/x in solve_for_pressure.F & post_cg3d.F
185        (similar to cg3d.F, cg3d_ex0.F)
186    o pkg/mom_vecinv:
187      - highOrderVorticity in selectVortScheme=2 case: fix c4 coeff in splitted
188        vorticity flux (keep same sum in case vBarXm=vBaXp, uBarYm=uBarYp).
189    o pkg/bling:
190      - Many small changes intended to clean the code.
191        Unnecessary ADJOINT_SAFEs removed ;
192        removed BLING_COST.h BLING_CTRL.h bling_cost.F ;
193        diagnostics added.
194    
195    checkpoint66e (2017/03/14)
196    o pkg/exf:
197      - interpolation with #undef EXF_INTERP_USE_DYNALLOC: move buffer size
198        definition outside EXF_PARAM.h in new header file: EXF_INTERP_SIZE.h;
199        use fixed size buffer (passed to S/R EXF_INTERP & EXF_INTERP_UV) to
200        avoid any dynamic allocation ;
201      - S/R EXF_CHECK: add new check & stop when file-name is defined but not
202        read-in ; add warning when file is read-in but not used within pkg/exf ;
203        + check for buffer-size (if #undef EXF_INTERP_USE_DYNALLOC).
204      - update exf_summary.F (print {FLD}RepCycle).
205    o verification/global_with_exf:
206      - switch on exf interpolation in AD test (just like the forward test)
207    o pkg/mom_vecinv:
208      - add storage directives to avoid recomputations within mom_vecinv.F
209        which were generating seg. fault with gfortran -devel
210    o pkg/ctrl, pkg/smooth:
211      - initialize array halos which were generating seg. fault with
212        gfortran -devel in adjoint mode
213    o pkg/exf:
214      - for each input field, enable to specify a field specific repeat-cycle
215        ({FLD}RepCycle) which defaults to pkg/exf main "repeatPeriod".
216    o verification/lab_sea:
217      - update AD results of primary test and noseaicedyn test after switching
218        to new version of TAF (5.3.13 vs 5.3.2 before); agreement with gradient
219        check stays about the same.
220    o pkg/exf:
221      - fix bug in exf_zenithangle.F for cases select_ZenAlbedo > 0 with useCAL=T.
222      - exf_check: MAX_LAT_INC need only be "loc_nlat-1", not equal to loc_nlat
223    o pkg/bling, USE_EXFCO2 code:
224      - add parameter "apco2RepCycle" (set to pkg/exf "repeatPeriod" by default);
225      - update calls to EXF S/R (use new version: EXF_INIT_FLD & EXF_SET_FLD).
226    o pkg/exf:
227      - rename S/R EXF_INIT to EXF_INIT_VARIA ;
228      - add arguments: fldName (for debug msg) and fldRepeatCycle (set to
229        repeatPeriod) to S/R EXF_SET_UV and to S/R EXF_SET_GEN (renamed EXF_SET_FLD)
230        and update calls in pkg/exf calling S/R (exf_getffields.F & exf_getclim.F) ;
231      - add argument: fldName (for debug msg) to S/R EXF_INIT_GEN (renamed
232        EXF_INIT_FLD) and update calls in exf_init_varia.F
233      - For now, for backward compatibility, keep a simplified version of S/Rs
234        EXF_SET_GEN & EXF_INIT_GEN in file exf_set_gen.F
235      - add and pass new arguments: fldName (for debug msg) and fldRepeatCycle
236        to S/R EXF_GetFFieldRec ; update calls in pkg/obcs/obcs_exf_load.F
237    o tools/genmake2:
238      - replace "bc -l" (only used once) by "expr" (already used).
239    o verification/global_ocean.cs32x15:
240      - turn off pkg/cal (useCAL=F) in secondary FWD exp. "icedyn".
241        Note: exf setting (data.exf) can be compared to other exf secondary exp
242        "seaice" (kept with useCAL=T) which has same time dependent forcing.
243    
244    checkpoint66d (2017/02/13)
245    o pkg/exf:
246      - remove setting of useCAL=T when using pkg/exf (useEXF=T); add warning
247        early on (in packages_boot.F) to stress this change in pkg setting.
248      - In (most) verification exp. that use pkg/exf, add useCAL=.TRUE. to data.pkg
249    o model/src:
250      - move call to ecco_phys to end of time step; this may induce minor
251        cost function changes by shifting time averages by one time step
252        for some variables; this revision resulted in changed adjoint results
253        in MITgcm_contrib/verification_other/global_oce_cs32
254    o pkg/exf:
255      - Change EXF_READ_EVAP to only activate code within #ifdef ALLOW_ATM_TEMP ;
256        this prevents to read evap when ALLOW_ATM_TEMP is undef and other fields,
257        e.g. precip, are not available.
258    o pkg/flt:
259      - flt_init_varia.F: use pickupSuff if specified
260      - add code (within #ifdef DEVEL_FLT_EXCH2) and test case as a first,
261        intermediate, step towards completing pkg/exch2 support within pkg/flt;
262        ifdef DEVEL_FLT_EXCH2 then:
263        - flt_init_fixed.F: comment out stop
264        - flt_exch2.F: conserve ipart, jpart (grid coordinates)
265        - exch2_recv_get_vec.F: transform ipart, jpart (grid coordinates)
266        - flt_mapping.F: attempt to fix longitude diagnostic near date-line
267        - flt_init_varia.F: hack initialization (for testing purposes w. LLC90)
268    o tools/genmake2 & pkg/pkg_depend:
269      - define new type of pkg dependency rule ("=pkg_x"), less strict than
270        the "+" rule, that add the dependent pkg (pkg_x) unless it's disabled
271        (-pkg_x in packages.conf).
272      - change pkg/exf dependency rule from "exf +cal" to "exf =cal";
273      - add "+cal" to dependency list of pkg/ecco (needed to compile).
274      - simplify FWD experiment "offline_exf_seaice" by removing pkg/cal.
275    o utils/matlab:
276      - adding ocean_basin routines for defining basin masks.
277    o pkg/exf:
278      - new S/R EXF_GETFFIELD_START replacing EXF_GETFIELD_START, but with more
279        arguments, allowing to check (and stop) if parameter setting of
280         {FLD}startdate1 & date2 and of {FLD}StartTime are consistent with
281        useCAL= T or F. For now, kept a simplified version of EXF_GETFIELD_START
282        for backward compatibility.
283      - change accordingly calls in exf_init_fixed.F + default {FLD}StartTime in
284        exf_readparms.F ; apply same changes to pkg/icefront (for SGRunOff field).
285    o pkg/bling (USE_EXFCO2 code):
286      - fix missing setting of apco2StartTime according to apco2startdate1 & date2
287        by adding a call to S/R EXF_GETFFIELD_START.
288    o pkg/exf:
289      - allows to compile without pkg/cal (but disabled by current dependency
290        rules, i.e., default "pkg/pkg_depend"). Minimal changes to enable to
291        run with useCAL=F ; this involves setting directly {FLD}StartTime instead
292        of {FLD}startdate1 & date2 ; consistency check not yet coded.
293    o verification/global_ocean.cs32x15:
294      - fix all data.exf for a shift of 1 day in all field startdate1 so that it now
295        corresponds to middle of 1rst month; update outputs (2 fwd + 3 adm + 3 tlm).
296    o pkg/exf:
297      - allow to use EXF_ZENITHANGLE without pkg/cal + simplify (saving some
298        calculations); change FWD experiment global_ocean.cs32x15
299        (#define ALLOW_ZENITHANGLE) to test/check that this code compiles.
300    o pkg/exf:
301      - In preparation for addition to NAMELIST, rename internal (_RL) parameter
302         {FIELD}startdate to {FIELD}StartTime
303        Note: new name also fit better the content, i.e, a start time in second.
304    o eesupp/src:
305      - add 1 argument to S/R EEBOOT & EEBOOT_MINIMAL for interface with ESMF
306    o pkg/exf:
307      - add option ALLOW_READ_TURBFLUXES (and corresponding set of parameters)
308        to allow to read-in Sensible & Latent Heat flux ;
309      - simplify pkg/exf main options:
310        1) move small piece of code (case ALLOW_ATM_TEMP undef) out of
311           exf_bulkformulae.F into exf_wind.F so that exf_bulkformulae.F is
312           compiled only when both ALLOW_ATM_TEMP & ALLOW_BULKFORMULAE are defined;
313        2) make call to EXF_RADIATION and to EXF_WIND independent of CPP option
314           ALLOW_BULKFORMULAE which now only applies to S/R EXF_BULKFORMULAE ;
315        3) improve options documentation in EXF_OPTIONS.h.
316    o pkg/ecco:
317      - cost_gencost_customize.F,ecco.h,ecco_phys.F,ecco_readparms.F, and
318        ecco_summary.F: add passive tracer cost functions to gencost;
319        m_ptracer and m_boxmean_ptracer
320    o pkg/ctrl:
321      - ctrl_map_forcing.F: pass myIter and myTime to ctrl_map_forcing as input
322        parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing; add to list
323        of implemented gentim2d contol parameters: xx_qnet, xx_empmr, xx_qsw,
324        xx_sst, xx_sss, xx_pload, xx_saltflux, xx_fu, xx_fv, xx_fe, xx_fn
325    o model/src:
326      - forward_step.F: pass myIter and myTime to ctrl_map_forcing as input
327        parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing
328    o pkg/exf:
329      - exf_getffields.F: add to list of implemented gentim2d contol parameters:
330        xx_lwflux, xx_swflux, xx_evap, xx_apressure, xx_areamask
331    
332    checkpoint66c (2017/01/19)
333    o verification:
334      - add new option "-src" to testreport to only produce source code (*.f),
335        including taf output src code (if using '-adm'/'-tlm' option).
336    o pkg/exf:
337      - add saltflx :: Net upward salt flux in psu.kg/m^2/s
338    o pkg/diagnostics:
339      - add run-time variable diagMdsDir to specify a subdirectory for
340        diagnostic output when mds is being used and mdsioLocalDir is not.
341    o pkg/mnc:
342      - mnc_utils.F: edit stop message
343    o pkg/autodiff:
344      - autodiff_ini_model_io.F: PRINT_MESSAGE, clean-up comments, add _*_MASTER,
345        add HAVE_SYSTEM bracket around system call to mkdir
346    o pkg/profiles:
347      - profiles_findunit.F, profiles_init_fixed.F, profiles_interp.F,
348        profiles_readparms.F: call ALL_PROC_DIE before 'stop'
349      - profiles_ini_io.F: use PRINT_MESSAGE, clean-up comments, add _*_MASTER,
350        add HAVE_SYSTEM bracket around system call to mkdir
351    o pkg/smooth:
352      - smooth_filtervar2d.F, smooth_filtervar3d.F: call ALL_PROC_DIE before 'stop'
353      - smooth_init2d.F, smooth_init3d.F: move print statements to readparms
354      - smooth_readparms.F: add cleaner print statements from smooth_init?d.F
355    o pkg/exf:
356      - check: count errors and stop cleanly at the end (call to ALL_PROC_DIE);
357        issue error message when climsst_interpMethod.GT.0 and climsst_lon_inc > 500
358        generalize tests on interpMethod, nlat, and lon_inc to all exf variables.
359      - summary: skip detailed field report if not used (empty file-name).
360    o tools/xmakedepend:
361      - In case line editor "ed" is missing, switch to "sed" command to clean-up
362        Makefile from previous dependencies (anything after "# DO NOT DELETE" line).
363    o pkg/exf:
364      - change definition of "hflux" input file to always include Short-Wave;
365        this is now consistent with hflux computation (if using bulk-formulae)
366        and hflux diagnostic & documentation (in EXF_FIELDS.h).
367    
368    checkpoint66b (2016/12/01)
369    o model & momentum pkgs:
370      - implement fully implicit bottom friction combined with implicit surf.
371        pressure, for now, only in hydrostic formulation:
372        + to use: compile with #define ALLOW_SOLVE4_PS_AND_DRAG in CPP_OPTIONS.h
373          and run with selectImplicitDrag=2 ;
374        + currently missing diagnostics of bottom drag and vert. viscosity tendency;
375      - partial implicit time-stepping (bot. friction + vert. visc first, then
376        surf. press) corresponding to selectImplicitDrag=1 should be applicable
377        to NH formulation but not available until we solve for surf. pressure
378        increment (instead of full etaN).
379      - change exp. global_ocean.cs32x15.thsice to test implicit bottom drag
380        with implicit vertical viscosity.
381    o pkg/seaice: add linear remapping scheme (Lipscomb 2001) to ITD model
382      - this is a first version that includes many regularisations that may
383        not all be necessary, to be sorted out,
384      - turned on by runtime parameter SEAICEuseLinRemapITD (true by default)
385      - change one verification experiment in seaice_itd to use and test new code
386      - seaice_growth: catch a case where the argument of log can be zero
387        or smaller (important for code stability)
388    o model/src:
389      - modify SOLVE_DIAGONAL_LOWMEMORY version of solve_tridiagonal.F
390        & solve_pentadiagonal.F to enable to re-used inverse matrix for solving
391        similar A.X'=Y' system (with same matrix A) in subsequent calls;
392        switch based on errCode (In/Out) argument value; in calling routines,
393        initialise errCode before first call.
394    
395    checkpoint66a (2016/10/18)
396    o pkg/bling:
397      - BLING package now loads in atmospheric pCO2 file using exf package routines
398        Enable with #define USE_EXFCO2 in BLING_OPTIONS.h
399    o model/src & pkg/ptracers:
400      - with INCLUDE_IMPLVERTADV_CODE defined, also call MOM_U,V_IMPLICIT_R &
401        GAD_IMPLICIT_R (instead of IMPLDIFF) when just implicitViscosity and
402        implicitDiffusion (respectively) are used (even without momImplVertAdv
403        or temp,salt,PTRACERS_ImplVertAdv).
404    o model/src & generic_advdiff:
405      - add parenthesis in main diagonal calculation of implicit vertical
406        diffusion matrix (impldiff.F & gad_implicit_r.F).
407        This affects results at machine truncation level; update output of many
408        verification experiments (31 fwd ; 10 adm ; 8 tlm ; 3 oad).
409    o pkg/mom_commom & generic_advdiff:
410      - add deep atmosphere and anelastic scaling factor in implicit vertical
411        advection routines (mom_u,v_implicit_r.F & gad*_impl*_r.F).
412    o model/src:
413      - remove few unnecessary temp array copies in solve_tridiagonal.F
414        & solve_pentadiagonal.F
415    
416    checkpoint65z (2016/09/28)
417    o pkg/seaice: fix multithreading for seaice_fgmres.F
418      - remove unecessary variables from common blocks
419      - use extra dimension MAX_NO_THREADS for all variables of the Krylov space
420        basis, that are stored in commom blocks (including integer variable i1)
421      - clean up code a little by removing commented lines that refer to
422        original code
423      - turn on multi-threaded test for experiment offline_exf_seaice.dyn_jfnk.
424    o MITgcm manual:
425      - add uptodate pkg/ecco documentation to the manual (section 8.1; ecco.tex),
426        preliminary documentation for generic controls (8.3; ctrl.tex),
427        a placeholder for smooth (8.4; smooth.tex), and comment out the deprecated
428        ecco_costfunction.tex
429    o pkg/ecco:
430      - update and cleanup list of CCP options
431      - re-assign gencost_mask to specify masks rather than gencost_errfile; 'c'
432        is now always passed to cost_generic; gencost_mask is now MAX_LEN_FNAM
433      - add checks that retired run-time options are not used, and in relation
434        to gencost_mask and gencost_errfile
435      - finish deprecating gencost_scalefile, gencost_smooth2Ddiffnbt, and
436        gencost_nrecperiod
437      - fix m_eta computation for virtual salt flux case
438      - add m_horflux_vol case (selected via gencost_barfile) that computes
439        transports via cost_gencost_boxmean (gencost_flag=-3)
440      - use gencost_flag more systematically (i.e., avoid using gencost_name)
441        for code switches (aside from physical variable selection)
442    o pkg/seaice: make seaice_fgmres.F fit for multithreading; this first
443      attempt appears to be a bit of a hack and my need some repair down the road
444    o pkg/exf:
445      - interpolation near South Pole: fix criteria on input field latitude.
446    o pkg/icefront & pkg/exf:
447      - move setting of icefront Sub-Glacial RunOff forcing (currently unused)
448        from pkg/exf (read from data.exf) to pkg/icefront (read from data.icefront)
449    o pkg/exf:
450      - replace CPP option ALLOW_EXF_OUTPUT_INTERP with run-time parameter
451        "exf_output_interp" (in namelist: EXF_NML_04); change output file name
452        (add suffix "_out" instead of a prefix); keep same record number as in
453        input file but always write record 1 first (to avoid a STOP in I/O S/R).
454        Change output file content by writing interpolated field before applying
455        land-sea mask (helpful for debug).
456      - 2 compon. vector interpolation with rotation: apply scaling factor on
457        each compon. (Eastward and Northward) just before rotation.
458    o pkg/bling:
459      - Cleaned package. Removed not needed code and comments.
460      - adjoint example now works
461        (MITgcm_contrib/verification_other/global_oce_biogeo_bling/code_ad)
462    o pkg/ptracers:
463      - add Bruno Deremble's code to complete the linear surface correction
464        for tracer conservation;
465      - enabled for individual ptracers by PTRACERS_linFSConserve(iTr)=.TRUE.
466    
467    checkpoint65y (2016/07/29)
468    o pkg/debug (stats):
469      - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
470        proc/thread mapping);
471      - fix Min & Max for case where 1 thread has only empty tiles;
472      - use RL variable to count number of wet grid points (with big domain,
473        can be too large to fit into integer*4).
474    o pkg/monitor:
475      - use RL variable to count number of wet grid points (but used only for del2)
476      - add new routine to compute Advective CFL within tracer time-stepping with
477        writing delayed until next monitor output.
478    o pkg/obcs:
479      - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
480    o pkg/cal:
481      - calandar-dump: treat case myTime < timePhase in the same way as in
482        eesupp/src/diff_phase_multiple.F (when not using calandar-dump).
483    o pkg/dic & seaice:
484      - fix compilation of ocean component for coupled atm+ocn model with
485        seaice dynamics & dic.
486    
487    checkpoint65x (2016/06/11)
488    o add a license text file in main MITgcm tree.
489    o added pkg/bling:
490      - intermediate complexity biogeochemical model
491      - see bling_description.txt for details
492      - verification experiment is global_oce_biogeo_bling (for now, in
493        Contrib/verification_other/); tested daily on baudelaire with gfortran.
494      - add entry point in pkg/gchem for new pkg "bling".
495    o pkg/seaice: fix tensile stength computation
496      - replace global field tensileStrength by tensileStrFac
497      - tensileStrFac can be computed once in S/R seaice_init_varia
498      - fortunately that does not affect any verification results
499    
500    checkpoint65w (2016/05/12)
501    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
502         with ECCO_CTRL_DEPRECATED defined
503    o verification/global_ocean.cs32x15:
504      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
505        with "selectNHfreeSurf=1".
506    o model/src (non-hydrostatic free-surface):
507      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
508        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
509      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
510        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
511        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
512        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
513      - Update output (changes at machine truncation level) of verification exp:
514        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
515        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
516    o pkg/seaice: ITD code
517      - fix picking up from a single category model by initialising
518        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
519      - split a long warning message in seaice_check_pickup.F into two lines,
520        because NEC SX-ACE cannot deal with the long line.
521    o model/src:
522      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
523    o pkg/seaice:
524      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
525    o pkg/seaice:
526      - add basal stress as parameterisation for grounding ice
527        following Lemieux et al. (2015)
528      - turn on by setting new parameter SEAICEbasalDragK2 to a value
529        larger than 0. Lemieux et al. (2015) recommend 15.
530      - The adjoint complains with extra recomputations so there is also a
531        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
532        order to postpone the problem
533      - compile the new code in lab_sea
534    o verification/halfpipe_streamice:
535      - update both TAF and OpenAD adm output (machine truncation differences)
536    
537    checkpoint65v (2016/04/08)
538    o verification/advect_xz:
539      - increase overlap size from 3 to 4 and add new secondary test for PQM
540        advection scheme (with mono & wino limiter).
541      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
542    o model/src:
543      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
544        added phi0Ref) to set vertical axis origin and phiRef origin;
545        keep Ro_SeaLevel for backward compatibility (with a warning).
546       According to coordinate and fluid type:
547        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
548        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
549        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
550        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
551      - remove Ro_SeaLevel from ATM experiment parameter files;
552      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
553        complement; update output.txt (changes at machine truncation level).
554    o pkg/seaice/seaice_evp.F
555      - simplify computation of deltaZ and zetaZ to simple averaging following
556        Bouillon et al. (2013). This removes a lot of code, but also changes
557        verification experiment lab_sea.hb87 -> updated
558    
559    checkpoint65u (2016/03/14)
560    o pkg/generic_advdiff:
561      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
562        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
563        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
564        testing and not for actual use.
565    o model/src:
566      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
567        origin r = rF(1);
568      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
569        in EOS for height coordinate: enable to include NH Pressure or to use
570        more accurate pressure vertical profile; options not linked to EOS type
571        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
572      - start to implement variable gravity (along vertical): for now, only with
573        z-coords (not even z*).
574      - add Ideal Gas equation of state for height coordinate.
575      - update OpenAD output (affected at machine truncation level) of exp:
576        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
577    o pkg/exf:
578      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
579        of exf interpolation (before any rescaling, rotation or interpolation
580        to velocity point) for each field that gets loaded from file. This option
581        identically mimics the input file organization (e.g. record numbers in year
582        by year input files) besides the change in horizontal grid.
583      - add rotateStressOnAgrid run-time switch so that wind stress fields
584        can be provided on the A-grid in zonal/meridional direction and
585        rotated on the fly. This only applies to the case when the exf
586        interpolation is off and rotateStressOnAgrid is false by default.
587    o model/src:
588      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
589        it's also used with pkg/atm_phys) and add few more parameters (but still
590        inactive, src code yet to come)
591    
592    checkpoint65t (2016/02/10)
593    o pkg/atm_phys:
594      - from Ruth Geen: add optical depth dependence on CO2 concentration.
595    o model/src:
596      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
597        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
598        Update output of exp. deep_anelastic (changes at truncation level).
599    o tools:
600      - add a hack in "remove_comments_sed" (used only with TAF) for recent
601        version of OpenMPI (shipped with FC.23): comment out the new header
602        file "mpif-sizeof.h" which causes problems to TAF.
603    o pkg/seaice:
604      - change the termination criterion so that maxits (SEAICElinearIterMax)
605        has an effect
606      - unify iteration parameters for implicit solvers (JFNK and Picard)
607        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
608        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
609        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
610        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
611        SEAICEnonLinTol     replaces JFNKgamma_nonlin
612      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
613      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
614        use with SEAICEuseKrylov
615    o pkg/seaice/seaice_lsr.F
616        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
617        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
618        an effect.
619    o pkg/seaice: add two new parameters
620      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
621        parameter is not in any namelist)
622      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
623        a preconditioner for the non-linear Newton iteration of the JFNK
624        solver
625    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
626      affects some experiments at truncation level:
627      - global_ocean.cs32x15.icedyn (11 digits),
628      - global_ocean.cs32x15.seaice (11 digits),
629      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
630      - also update global_ocean.cs32x15 adjoint and tangent-linear results
631    o pkg/salt_plume & pkg/thsice:
632      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
633        connect salt_plume flux to ATM-OCN coupling pkgs interface:
634       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
635         export to coupler interface) even without compiling pkg/salt_plume ;
636       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
637         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
638    o pkg/dic:
639      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
640        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
641        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
642      - move also update with values from ATM-OCN Coupler in the same new S/R
643        (previously done in ocn_apply_import.F).
644    o tools/adjoint_options:
645      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
646        has been changed on Jan 14, 2016.
647    o pkg/ggl90:
648      - add alternative discretisation of vertical shear (off by default), to
649        compute the mean (@ grid-cell center) of vertical shear compon instead of
650        vertical shear of mean flow (@ grid-cell center).
651      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
652        results on adjacent faces of cubed-sphere grids; this fix the restart.
653    o pkg/atm_compon_interf:
654      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
655        pass last value, stored directly before export to CPL ;
656        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
657      - remove atmSLPr from pickup files (no longer needed for restart)
658    
659    checkpoint65s (2016/01/13)
660    o eesupp & genmake2:
661       - first check for Function ETIME and, if it fails, then check for subroutine
662         ETIME and consistent output; use the appropriate version in timers.F
663    o model/src:
664      - to check restart test, add option to apply EXCH to U,V earlier, just before
665        integr_continuity; turned off by default.
666    o pkg/dic:
667      - remove CPP option USE_ATMOSCO2 (not needed)
668    o tools/tst_2+2:
669      - try to ignore difference between +0 and -0 in binary file, causing test
670        to fail for no good reason.
671    o eesupp & genmake2:
672      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
673        but also check (in genmake2) that test runs and returns meaningful results.
674    o coupler pkgs:
675      Finish implementation of optionally-exchanged variable switches (started on
676       Nov 12) with addition of few more exchanged fields, including 2-way exchange
677       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
678       advection in OCN component; this requires sequential coupling.
679      coupler (pkg/atm_ocn_coupler):
680      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
681        routines (useful for debug).
682      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
683         flux, DIC fields) if corresponding switch is ON.
684      - add option to export RunOff to OCN (to use for DIC river input)
685      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
686      components (pkg/atm_ & ocn_compon_interf):
687      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
688        optionally exchanged fields; add a check & stop in cpl_readparms.F.
689        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
690        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
691      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
692        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
693      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
694      - hold in common block coupler optionally-exchanged variable switch
695        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
696      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
697        this is intended to replace the OCN cplFldtave.* output files (not updated
698        to contain new additional exchanged fields).
699    o pkg/dic:
700      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
701    o pkg/thsice:
702      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
703        and writing of thsice pickup files.
704    o pkg/atm_compon_interf:
705      - move all field individual export-call out of cpl_export_import_data.F
706        into new S/R ATM_EXPORT_FIELDS
707    o pkg/atm_compon_interf:
708      - store state variables (for now, only thSIce fields) just before beeing
709        exported (in cpl_export_import_data.F, like on ocean side) instead of from
710        atm_store_my_data.F like all exported fluxes.
711      - new version of pickup_cpl: write field names into meta file and read meta
712        file to find field postion in pickup. Also only write/read fields meeded for
713        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
714    o pkg/dic:
715      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
716    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
717        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
718        value can be from domain [0,1] to average between the two methods
719    o pkg/atm_phys:
720      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
721        hold fixed in time).
722    
723    checkpoint65r (2015/12/21)
724    o pkg/seaice:
725        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
726        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
727    o pkg/seaice:
728      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
729        when SEAICEscaleSurfStress=.TRUE.,
730      - apply areaW and areaS in S/R seaice_calc_lhs
731    o pkg/atm_phys:
732      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
733        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
734        for individual contribution (convection, LSC cond, radiation)
735      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
736        information); activated with: solar_exponent=0. and wv_exponent=-1.
737    o pkg/ggl90:
738      - within IDEMIX add upper limit for horizontal group velocity to
739        avoid instability problems in the explicit horizontal diffusion term for
740        long time steps or high resolution
741    o pkg/diagnostics:
742      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
743        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
744    o testreport:
745      - remove "-v" (verbose option) in default mpirun command.
746    o pkg/seaice/seaice_growth:
747      - catch potential division by zero in ITD code, does not change
748        verification results
749    o pkg/ecco:
750      - retire old codes to the Attic. The calls to retired functions are
751        left in a commented form in case they ever need to be re-activated.
752      - ecco_check.F: issue warning if any old CPP option is
753        defined that corresponds to retired codes -- then stop.
754    o pkg/atm_compon_interf:
755      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
756        coupler: use last time-step value instead of average over cplSendFrq_iter
757        time-step, similar to what is done for seaIceMass.
758        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
759    o eesupp & genmake2:
760      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
761        <= remove until a fix is found for some ifort version on ia32 machine.
762    o pkg/seaice/seaice_evp:
763      - refine residual computation
764    
765    checkpoint65q (2015/11/18)
766    o pkg/seaice/seaice_evp:
767      - fix residual computations so that they no longer affect the actual
768        simulation code
769      - fix seaice_readparams to be able to actually set new parameters
770        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
771    o model/src:
772      - fix wrong truncation (single prec) from "FLOAT" function in expressions
773        like: deltaT*FLOAT(myIter) when myIter is large:
774         a) replaced by DFLOAT (if not seen by TAF);
775         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
776    o pkg/aim_v23:
777      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
778        when pickupSuff is set ; do write rolling pickups + at the end of the run.
779    o pkg/atm_ocn_coupler + ocn_compon_interf:
780      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
781        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
782        add corresponding call in DO_OCEANIC_PHYS.
783    o coupler pkgs:
784      Start a new way to set-up optionally-exchanged variables (previously, only
785       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
786       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
787       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
788       compononent param default can be set accordingly).
789      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
790       but rather applies to a group a fields (going both ways like for DIC)
791       and corresponds to an option of coupling config.
792      coupler (pkg/atm_ocn_coupler):
793      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
794        and read namelist directly (without eessup S/R calls) instead of
795        in the very un-flexible old way, 1 param per line, in fixed order;
796      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
797        cleanly in CPL_CHECK_CPLCONFIG
798      - add new coupling-exchange selectors (some not yet active) including
799        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
800                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
801      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
802        component ; called directly from coupler.F, after comp. registrations;
803      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
804         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
805          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
806      components (pkg/atm_ & ocn_compon_interf):
807      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
808        CPP header file in all pkg source files.
809      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
810        ATM/OCN_CHECK_CPLCONFIG;
811      - add error-counter to track errors (e.g., in "data.cpl") and to stop
812        cleanly in ATM/OCN_CHECK_CPLCONFIG;
813      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
814        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
815        before PACKAGES_READPARMS;
816      verification/cpl_aim+ocn/:
817      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
818        "data.cpl" for coupler (in input_cpl).
819    o eesupp/inc:
820      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
821        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
822        to always cumulate tile local-sum in the same order (still uses
823        MPI_Allreduce like standard code).
824      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
825        that are now identical to standard version (in eesupp/inc).
826    o pkg/shelfice:
827      - add SHELFICETransCoeffTFile for initializing spatially varying
828        heat and salt transfer coefficients
829    o pkg/atm_compon_interf & ocn_compon_interf:
830      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
831        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
832      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
833    o pkg/atm_ocn_coupler:
834      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
835    o pkg/rbcs:
836      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
837        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
838      - add a short report (to STDOUT) about RBCS-mask settings.
839    
840    checkpoint65p (2015/10/23)
841    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
842        there is no adjoint test for EVP, we don't know what it does to the adjoint
843        solution, but at least there are no more recomputation warnings left
844    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
845        a chance of giving the same results as a fully converged VP (JFNK) solver
846    o tools/adjoint_options/adjoint_diva:
847      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
848    o pkg/streamice:
849      - spotted bug in streamice_driving_stress using dyG where should have been dxG
850    o pkg/exf:
851      - remove STOP statement that prevented to use wind or (wind-)stress
852        interpolation for constant-in-time forcing fields (wind/stress period = 0).
853    o pkg/seaice:
854      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
855        5 additionals 2D fields and 6 new store directives
856      - change logic in seaice_readparms.F: EVP code can now be turned on in
857        various ways, setting SEAICE_deltaTev is no longer required,
858        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
859        or SEAICEaEVPcoeff
860    o pkg/shelfice/shelfice_thermodynamics.F
861      - redefining uLoc/vLoc to u/v, instead of 2u/v
862    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
863      - this is an intermediate state of a truely converging EVP that has
864        the potential of outperforming implicit VP methods, I do not recommend
865        using it yet.
866      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
867        and all parameters are hardwired
868      - for convergence it still requires very smooth regularisations, that means,
869        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
870        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
871        specific averaging appears to be required, still subject to tuning
872      - still needs cleaning and I need to turn parameter into runtime parameters
873      - add code to compute and print residuals of iteration, compile with
874        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
875    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
876      that entered with r1.54 on Sep04, 2015, -> update results
877    
878    checkpoint65o (2015/09/14)
879    o pkg/mom_vecinv & mom_common:
880      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
881        called from there.
882      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
883        allows to use Vector-Invariant form in deep atmos and anelastic formulation
884    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
885      and Koenig-Beatty+Holland (2012)
886      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
887      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
888      - requires an extra input argument for S/R seaice_calc_viscosities
889      - tensileStrength's depth dependence is different from Itkin et al. (2015)
890        (to be changed and played with, for now exponential)
891    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
892      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
893        by AREA according to Connelly et al. (2004), JPO.
894      - For EVP and the LSR solver, the implicit part of the drag term is
895        the only non-zero term in the denominator when there is no ice (which
896        prevented running the model with zero ice-ocean drag). If
897        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
898        (or zero main diagonals BU/BV) which need to be caught. A practical
899        consequence is that for open water, the momentum equation reduce
900        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
901        they happen to be zero, often leading to a non-zero solution over
902        open water.
903    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
904        efficient EVP method.
905      - introduce area-weighted averages for e12 (analogously to
906        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
907        remain, but also changing the order of terms in the previous average
908        changed the results as much) -> update experiment
909      - add SEAICE_DELTA_SMOOTHREG code
910      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
911        TEM-code
912      - adjust loop bounds so that only required fields are computed
913      - add new averaging code for zetaZ/deltaZ (again similar to
914        seaice_calc_viscosities.F), inactive by default for now (will change
915        results again), but will replace old code eventually
916    o eesupp/src:
917      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
918        to always cumulate tile local-sum in the same order
919        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
920        Still uses MPI_Allreduce (like standard code) but on array of tiles
921        and should be faster than GLOBAL_SUM_SEND_RECV code.
922      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
923        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
924      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
925         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
926         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
927         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
928         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
929    
930    checkpoint65n (2015/07/29)
931    o pkg/thsice:
932      - add a warning when used with pkg/aim but without updating SST
933        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
934    o pkg/offline:
935      - change where Offline-Fields are loaded, from load_fields_driver.F to
936        directly within FORWARD_STEP, just after updating iter number and time;
937      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
938        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
939       These changes allow:
940        a) to recover exactly on-line results using deltaToffline=deltaTClock,
941        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
942        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
943        time-step, both with GM & KPP files and with recomputing these fields;
944        b) no needs to switch on staggerTimeStep anymore;
945        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
946      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
947    o pkg/offline:
948      - change (rarely used) offset-iteration parameter to an offset time (in s):
949        can easily recover previous offset-iter effect by setting offset-time
950        (offlineTimeOffset) to offset-iter x deltaToffline;
951      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
952        in KPP as part of surface buoyancy forcing) in offline run.
953      - fix ptracers KPP non-local term in the case where KPP is re-computed.
954    o OpenAD
955      - Adding preliminary ggl90 test to OpenAD verification.
956        Config. with ggl90 currently diverges after 64 time steps
957        so will need more work to become more stable
958      - Adding preliminary kpp test to OpenAD verification.
959        required small tweakes in kpp_routines.F
960      - Merge and update from Krishna Narayanan's contrib area:
961        * Add one variable for preliminary OpenAD DIVA
962        * Add replacement time-stepping for OpenAD DIVA
963        * genmake2 flag -diva (but only for OpenAD; preliminary)
964        * required modifs for OAD_support
965        successful preliminary test for tutorial_global_oce_biogeo/
966    o pkg/seaice:
967      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
968      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
969        delta with a smooth function in s/r seaice_calc_viscosity
970        (no effect on EVP)
971      - rename local suffix "sqr" into "sq" for more consistent variable names
972    o pkg/seaice:
973        add new parameter SEAICE_deltaMin that is used ***only***
974        for regularizing Delta (and nothing else, like the parameter
975        which is also used for all sorts of things SEAICE_EPS).
976        Defaults to SEAICE_EPS for backward compatibility only.
977    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
978        the wrong key by inialising it before use -> fixes a recomputation
979        problem but does not fix the gradient
980    o pkg/layers:
981      - move resetting of flux arrays to outside the iLa loop
982        (this caused layers_diapycnal to not work with more than one layer coord.)
983      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
984    o pkg/layers:
985      - remove from common block 3D layers fields (used to diagnose transport
986        in tracer coords) and declare them as local arrays in layers_calc.F
987    o pkg/seaice:
988      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
989        in lab_sea forward experiment (changes results -> updated)
990      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
991    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
992       computations; for SEAICE_VECTORIZE_LSR
993      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
994        sweep to the outside,
995      - remove store directives and add "CADJ loop sequential" directives
996        in analogy to model/src/solve_tridiagonal.F
997      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
998        boundaries to yield more readable code. This has also the charming side
999        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
1000        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
1001        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
1002        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
1003        an additional option)
1004       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
1005       but the adjoint gradients (which are affected by this change) still explode.
1006    o coupler (atm & ocn _compon_interf):
1007      - avoid using Exch2 IO mapping if not suitable.
1008    
1009    checkpoint65m (2015/06/15)
1010    o pkg/layers:
1011      - clean-up old parameters setting (from Sep 2012):
1012        + remove old parameters setting from common block (declared locally);
1013        + stop if any old parameter is mixed with new parameters;
1014        + check for valid or consistent parameter setting (e.g., layers_name)
1015      - check that layers_bounds for Pot.Density are in the right range;
1016        this is supposed to catch un-updated setting after recently shifting
1017        potential density field "prho" by -1000 (now in "sigma" scale).
1018    o pkg/layers:
1019      - Added missing call to layers_fill for keeping track of tottend in
1020        pkg/diagnostics/diagnostics_fill_state.F
1021    o pkg/layers:
1022      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
1023        of diapycnal fluxes
1024    o pkg/layers:
1025      - reverted changes to interpolation to previous treatment; there
1026        was never actually a problem
1027    o pkg/layers:
1028      - fix interpolation of layers tracers in the presence of partial cells
1029      - add lots of new functionality to compute water mass transformation
1030        (enabled by CPP flag LAYERS_THERMODYNAMICS)
1031      - add new calls from main code (diags_oceanic_surf_flux.F,
1032        thermodynamics.F, impldiff.F) and gad to save the necessary fields
1033        for layers_thermodynamics calculations
1034    o pkg/ptracers:
1035      - add capability of stepping a passive tracer forward without advection
1036        by setting PTRACERS_advScheme to 0.
1037    o pkg/diagnostics:
1038      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
1039  o pkg/layers:  o pkg/layers:
1040    - shift potential density field "prho" by -1000 for density layer averaging so    - shift potential density field "prho" by -1000 for density layer averaging so
1041      that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);      that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
# Line 223  o model/src & mom pkgs: Line 1255  o model/src & mom pkgs:
1255      just copy level Nr value to level Nr+1.      just copy level Nr value to level Nr+1.
1256  o doc:  o doc:
1257    - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.    - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
1258  o pkg/streamice:  o pkg/shelfice:
1259    - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,    - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
1260      SHELFICE.h: move array shelficemass to init_varia, initialise      SHELFICE.h: move array shelficemass to init_varia, initialise
1261      from array shelficemassinit, which is set in init_fixed and      from array shelficemassinit, which is set in init_fixed and

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