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revision 1.1889 by dimitri, Mon Jul 1 16:55:57 2013 UTC revision 1.2284 by jmc, Thu Dec 1 17:11:59 2016 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint66b (2016/12/01)
8    o model & momentum pkgs:
9      - implement fully implicit bottom friction combined with implicit surf.
10        pressure, for now, only in hydrostic formulation:
11        + to use: compile with #define ALLOW_SOLVE4_PS_AND_DRAG in CPP_OPTIONS.h
12          and run with selectImplicitDrag=2 ;
13        + currently missing diagnostics of bottom drag and vert. viscosity tendency;
14      - partial implicit time-stepping (bot. friction + vert. visc first, then
15        surf. press) corresponding to selectImplicitDrag=1 should be applicable
16        to NH formulation but not available until we solve for surf. pressure
17        increment (instead of full etaN).
18      - change exp. global_ocean.cs32x15.thsice to test implicit bottom drag
19        with implicit vertical viscosity.
20    o pkg/seaice: add linear remapping scheme (Lipscomb 2001) to ITD model
21      - this is a first version that includes many regularisations that may
22        not all be necessary, to be sorted out,
23      - turned on by runtime parameter SEAICEuseLinRemapITD (true by default)
24      - change one verification experiment in seaice_itd to use and test new code
25      - seaice_growth: catch a case where the argument of log can be zero
26        or smaller (important for code stability)
27    o model/src:
28      - modify SOLVE_DIAGONAL_LOWMEMORY version of solve_tridiagonal.F
29        & solve_pentadiagonal.F to enable to re-used inverse matrix for solving
30        similar A.X'=Y' system (with same matrix A) in subsequent calls;
31        switch based on errCode (In/Out) argument value; in calling routines,
32        initialise errCode before first call.
33    
34    checkpoint66a (2016/10/18)
35    o pkg/bling:
36      - BLING package now loads in atmospheric pCO2 file using exf package routines
37        Enable with #define USE_EXFCO2 in BLING_OPTIONS.h
38    o model/src & pkg/ptracers:
39      - with INCLUDE_IMPLVERTADV_CODE defined, also call MOM_U,V_IMPLICIT_R &
40        GAD_IMPLICIT_R (instead of IMPLDIFF) when just implicitViscosity and
41        implicitDiffusion (respectively) are used (even without momImplVertAdv
42        or temp,salt,PTRACERS_ImplVertAdv).
43    o model/src & generic_advdiff:
44      - add parenthesis in main diagonal calculation of implicit vertical
45        diffusion matrix (impldiff.F & gad_implicit_r.F).
46        This affects results at machine truncation level; update output of many
47        verification experiments (31 fwd ; 10 adm ; 8 tlm ; 3 oad).
48    o pkg/mom_commom & generic_advdiff:
49      - add deep atmosphere and anelastic scaling factor in implicit vertical
50        advection routines (mom_u,v_implicit_r.F & gad*_impl*_r.F).
51    o model/src:
52      - remove few unnecessary temp array copies in solve_tridiagonal.F
53        & solve_pentadiagonal.F
54    
55    checkpoint65z (2016/09/28)
56    o pkg/seaice: fix multithreading for seaice_fgmres.F
57      - remove unecessary variables from common blocks
58      - use extra dimension MAX_NO_THREADS for all variables of the Krylov space
59        basis, that are stored in commom blocks (including integer variable i1)
60      - clean up code a little by removing commented lines that refer to
61        original code
62      - turn on multi-threaded test for experiment offline_exf_seaice.dyn_jfnk.
63    o MITgcm manual:
64      - add uptodate pkg/ecco documentation to the manual (section 8.1; ecco.tex),
65        preliminary documentation for generic controls (8.3; ctrl.tex),
66        a placeholder for smooth (8.4; smooth.tex), and comment out the deprecated
67        ecco_costfunction.tex
68    o pkg/ecco:
69      - update and cleanup list of CCP options
70      - re-assign gencost_mask to specify masks rather than gencost_errfile; 'c'
71        is now always passed to cost_generic; gencost_mask is now MAX_LEN_FNAM
72      - add checks that retired run-time options are not used, and in relation
73        to gencost_mask and gencost_errfile
74      - finish deprecating gencost_scalefile, gencost_smooth2Ddiffnbt, and
75        gencost_nrecperiod
76      - fix m_eta computation for virtual salt flux case
77      - add m_horflux_vol case (selected via gencost_barfile) that computes
78        transports via cost_gencost_boxmean (gencost_flag=-3)
79      - use gencost_flag more systematically (i.e., avoid using gencost_name)
80        for code switches (aside from physical variable selection)
81    o pkg/seaice: make seaice_fgmres.F fit for multithreading; this first
82      attempt appears to be a bit of a hack and my need some repair down the road
83    o pkg/exf:
84      - interpolation near South Pole: fix criteria on input field latitude.
85    o pkg/icefront & pkg/exf:
86      - move setting of icefront Sub-Glacial RunOff forcing (currently unused)
87        from pkg/exf (read from data.exf) to pkg/icefront (read from data.icefront)
88    o pkg/exf:
89      - replace CPP option ALLOW_EXF_OUTPUT_INTERP with run-time parameter
90        "exf_output_interp" (in namelist: EXF_NML_04); change output file name
91        (add suffix "_out" instead of a prefix); keep same record number as in
92        input file but always write record 1 first (to avoid a STOP in I/O S/R).
93        Change output file content by writing interpolated field before applying
94        land-sea mask (helpful for debug).
95      - 2 compon. vector interpolation with rotation: apply scaling factor on
96        each compon. (Eastward and Northward) just before rotation.
97    o pkg/bling:
98      - Cleaned package. Removed not needed code and comments.
99      - adjoint example now works
100        (MITgcm_contrib/verification_other/global_oce_biogeo_bling/code_ad)
101    o pkg/ptracers:
102      - add Bruno Deremble's code to complete the linear surface correction
103        for tracer conservation;
104      - enabled for individual ptracers by PTRACERS_linFSConserve(iTr)=.TRUE.
105    
106    checkpoint65y (2016/07/29)
107    o pkg/debug (stats):
108      - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
109        proc/thread mapping);
110      - fix Min & Max for case where 1 thread has only empty tiles;
111      - use RL variable to count number of wet grid points (with big domain,
112        can be too large to fit into integer*4).
113    o pkg/monitor:
114      - use RL variable to count number of wet grid points (but used only for del2)
115      - add new routine to compute Advective CFL within tracer time-stepping with
116        writing delayed until next monitor output.
117    o pkg/obcs:
118      - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
119    o pkg/cal:
120      - calandar-dump: treat case myTime < timePhase in the same way as in
121        eesupp/src/diff_phase_multiple.F (when not using calandar-dump).
122    o pkg/dic & seaice:
123      - fix compilation of ocean component for coupled atm+ocn model with
124        seaice dynamics & dic.
125    
126    checkpoint65x (2016/06/11)
127    o add a license text file in main MITgcm tree.
128    o added pkg/bling:
129      - intermediate complexity biogeochemical model
130      - see bling_description.txt for details
131      - verification experiment is global_oce_biogeo_bling (for now, in
132        Contrib/verification_other/); tested daily on baudelaire with gfortran.
133      - add entry point in pkg/gchem for new pkg "bling".
134    o pkg/seaice: fix tensile stength computation
135      - replace global field tensileStrength by tensileStrFac
136      - tensileStrFac can be computed once in S/R seaice_init_varia
137      - fortunately that does not affect any verification results
138    
139    checkpoint65w (2016/05/12)
140    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
141         with ECCO_CTRL_DEPRECATED defined
142    o verification/global_ocean.cs32x15:
143      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
144        with "selectNHfreeSurf=1".
145    o model/src (non-hydrostatic free-surface):
146      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
147        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
148      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
149        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
150        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
151        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
152      - Update output (changes at machine truncation level) of verification exp:
153        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
154        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
155    o pkg/seaice: ITD code
156      - fix picking up from a single category model by initialising
157        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
158      - split a long warning message in seaice_check_pickup.F into two lines,
159        because NEC SX-ACE cannot deal with the long line.
160    o model/src:
161      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
162    o pkg/seaice:
163      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
164    o pkg/seaice:
165      - add basal stress as parameterisation for grounding ice
166        following Lemieux et al. (2015)
167      - turn on by setting new parameter SEAICEbasalDragK2 to a value
168        larger than 0. Lemieux et al. (2015) recommend 15.
169      - The adjoint complains with extra recomputations so there is also a
170        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
171        order to postpone the problem
172      - compile the new code in lab_sea
173    o verification/halfpipe_streamice:
174      - update both TAF and OpenAD adm output (machine truncation differences)
175    
176    checkpoint65v (2016/04/08)
177    o verification/advect_xz:
178      - increase overlap size from 3 to 4 and add new secondary test for PQM
179        advection scheme (with mono & wino limiter).
180      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
181    o model/src:
182      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
183        added phi0Ref) to set vertical axis origin and phiRef origin;
184        keep Ro_SeaLevel for backward compatibility (with a warning).
185       According to coordinate and fluid type:
186        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
187        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
188        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
189        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
190      - remove Ro_SeaLevel from ATM experiment parameter files;
191      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
192        complement; update output.txt (changes at machine truncation level).
193    o pkg/seaice/seaice_evp.F
194      - simplify computation of deltaZ and zetaZ to simple averaging following
195        Bouillon et al. (2013). This removes a lot of code, but also changes
196        verification experiment lab_sea.hb87 -> updated
197    
198    checkpoint65u (2016/03/14)
199    o pkg/generic_advdiff:
200      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
201        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
202        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
203        testing and not for actual use.
204    o model/src:
205      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
206        origin r = rF(1);
207      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
208        in EOS for height coordinate: enable to include NH Pressure or to use
209        more accurate pressure vertical profile; options not linked to EOS type
210        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
211      - start to implement variable gravity (along vertical): for now, only with
212        z-coords (not even z*).
213      - add Ideal Gas equation of state for height coordinate.
214      - update OpenAD output (affected at machine truncation level) of exp:
215        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
216    o pkg/exf:
217      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
218        of exf interpolation (before any rescaling, rotation or interpolation
219        to velocity point) for each field that gets loaded from file. This option
220        identically mimics the input file organization (e.g. record numbers in year
221        by year input files) besides the change in horizontal grid.
222      - add rotateStressOnAgrid run-time switch so that wind stress fields
223        can be provided on the A-grid in zonal/meridional direction and
224        rotated on the fly. This only applies to the case when the exf
225        interpolation is off and rotateStressOnAgrid is false by default.
226    o model/src:
227      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
228        it's also used with pkg/atm_phys) and add few more parameters (but still
229        inactive, src code yet to come)
230    
231    checkpoint65t (2016/02/10)
232    o pkg/atm_phys:
233      - from Ruth Geen: add optical depth dependence on CO2 concentration.
234    o model/src:
235      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
236        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
237        Update output of exp. deep_anelastic (changes at truncation level).
238    o tools:
239      - add a hack in "remove_comments_sed" (used only with TAF) for recent
240        version of OpenMPI (shipped with FC.23): comment out the new header
241        file "mpif-sizeof.h" which causes problems to TAF.
242    o pkg/seaice:
243      - change the termination criterion so that maxits (SEAICElinearIterMax)
244        has an effect
245      - unify iteration parameters for implicit solvers (JFNK and Picard)
246        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
247        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
248        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
249        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
250        SEAICEnonLinTol     replaces JFNKgamma_nonlin
251      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
252      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
253        use with SEAICEuseKrylov
254    o pkg/seaice/seaice_lsr.F
255        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
256        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
257        an effect.
258    o pkg/seaice: add two new parameters
259      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
260        parameter is not in any namelist)
261      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
262        a preconditioner for the non-linear Newton iteration of the JFNK
263        solver
264    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
265      affects some experiments at truncation level:
266      - global_ocean.cs32x15.icedyn (11 digits),
267      - global_ocean.cs32x15.seaice (11 digits),
268      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
269      - also update global_ocean.cs32x15 adjoint and tangent-linear results
270    o pkg/salt_plume & pkg/thsice:
271      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
272        connect salt_plume flux to ATM-OCN coupling pkgs interface:
273       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
274         export to coupler interface) even without compiling pkg/salt_plume ;
275       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
276         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
277    o pkg/dic:
278      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
279        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
280        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
281      - move also update with values from ATM-OCN Coupler in the same new S/R
282        (previously done in ocn_apply_import.F).
283    o tools/adjoint_options:
284      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
285        has been changed on Jan 14, 2016.
286    o pkg/ggl90:
287      - add alternative discretisation of vertical shear (off by default), to
288        compute the mean (@ grid-cell center) of vertical shear compon instead of
289        vertical shear of mean flow (@ grid-cell center).
290      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
291        results on adjacent faces of cubed-sphere grids; this fix the restart.
292    o pkg/atm_compon_interf:
293      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
294        pass last value, stored directly before export to CPL ;
295        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
296      - remove atmSLPr from pickup files (no longer needed for restart)
297    
298    checkpoint65s (2016/01/13)
299    o eesupp & genmake2:
300       - first check for Function ETIME and, if it fails, then check for subroutine
301         ETIME and consistent output; use the appropriate version in timers.F
302    o model/src:
303      - to check restart test, add option to apply EXCH to U,V earlier, just before
304        integr_continuity; turned off by default.
305    o pkg/dic:
306      - remove CPP option USE_ATMOSCO2 (not needed)
307    o tools/tst_2+2:
308      - try to ignore difference between +0 and -0 in binary file, causing test
309        to fail for no good reason.
310    o eesupp & genmake2:
311      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
312        but also check (in genmake2) that test runs and returns meaningful results.
313    o coupler pkgs:
314      Finish implementation of optionally-exchanged variable switches (started on
315       Nov 12) with addition of few more exchanged fields, including 2-way exchange
316       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
317       advection in OCN component; this requires sequential coupling.
318      coupler (pkg/atm_ocn_coupler):
319      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
320        routines (useful for debug).
321      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
322         flux, DIC fields) if corresponding switch is ON.
323      - add option to export RunOff to OCN (to use for DIC river input)
324      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
325      components (pkg/atm_ & ocn_compon_interf):
326      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
327        optionally exchanged fields; add a check & stop in cpl_readparms.F.
328        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
329        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
330      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
331        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
332      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
333      - hold in common block coupler optionally-exchanged variable switch
334        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
335      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
336        this is intended to replace the OCN cplFldtave.* output files (not updated
337        to contain new additional exchanged fields).
338    o pkg/dic:
339      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
340    o pkg/thsice:
341      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
342        and writing of thsice pickup files.
343    o pkg/atm_compon_interf:
344      - move all field individual export-call out of cpl_export_import_data.F
345        into new S/R ATM_EXPORT_FIELDS
346    o pkg/atm_compon_interf:
347      - store state variables (for now, only thSIce fields) just before beeing
348        exported (in cpl_export_import_data.F, like on ocean side) instead of from
349        atm_store_my_data.F like all exported fluxes.
350      - new version of pickup_cpl: write field names into meta file and read meta
351        file to find field postion in pickup. Also only write/read fields meeded for
352        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
353    o pkg/dic:
354      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
355    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
356        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
357        value can be from domain [0,1] to average between the two methods
358    o pkg/atm_phys:
359      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
360        hold fixed in time).
361    
362    checkpoint65r (2015/12/21)
363    o pkg/seaice:
364        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
365        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
366    o pkg/seaice:
367      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
368        when SEAICEscaleSurfStress=.TRUE.,
369      - apply areaW and areaS in S/R seaice_calc_lhs
370    o pkg/atm_phys:
371      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
372        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
373        for individual contribution (convection, LSC cond, radiation)
374      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
375        information); activated with: solar_exponent=0. and wv_exponent=-1.
376    o pkg/ggl90:
377      - within IDEMIX add upper limit for horizontal group velocity to
378        avoid instability problems in the explicit horizontal diffusion term for
379        long time steps or high resolution
380    o pkg/diagnostics:
381      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
382        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
383    o testreport:
384      - remove "-v" (verbose option) in default mpirun command.
385    o pkg/seaice/seaice_growth:
386      - catch potential division by zero in ITD code, does not change
387        verification results
388    o pkg/ecco:
389      - retire old codes to the Attic. The calls to retired functions are
390        left in a commented form in case they ever need to be re-activated.
391      - ecco_check.F: issue warning if any old CPP option is
392        defined that corresponds to retired codes -- then stop.
393    o pkg/atm_compon_interf:
394      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
395        coupler: use last time-step value instead of average over cplSendFrq_iter
396        time-step, similar to what is done for seaIceMass.
397        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
398    o eesupp & genmake2:
399      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
400        <= remove until a fix is found for some ifort version on ia32 machine.
401    o pkg/seaice/seaice_evp:
402      - refine residual computation
403    
404    checkpoint65q (2015/11/18)
405    o pkg/seaice/seaice_evp:
406      - fix residual computations so that they no longer affect the actual
407        simulation code
408      - fix seaice_readparams to be able to actually set new parameters
409        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
410    o model/src:
411      - fix wrong truncation (single prec) from "FLOAT" function in expressions
412        like: deltaT*FLOAT(myIter) when myIter is large:
413         a) replaced by DFLOAT (if not seen by TAF);
414         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
415    o pkg/aim_v23:
416      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
417        when pickupSuff is set ; do write rolling pickups + at the end of the run.
418    o pkg/atm_ocn_coupler + ocn_compon_interf:
419      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
420        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
421        add corresponding call in DO_OCEANIC_PHYS.
422    o coupler pkgs:
423      Start a new way to set-up optionally-exchanged variables (previously, only
424       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
425       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
426       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
427       compononent param default can be set accordingly).
428      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
429       but rather applies to a group a fields (going both ways like for DIC)
430       and corresponds to an option of coupling config.
431      coupler (pkg/atm_ocn_coupler):
432      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
433        and read namelist directly (without eessup S/R calls) instead of
434        in the very un-flexible old way, 1 param per line, in fixed order;
435      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
436        cleanly in CPL_CHECK_CPLCONFIG
437      - add new coupling-exchange selectors (some not yet active) including
438        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
439                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
440      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
441        component ; called directly from coupler.F, after comp. registrations;
442      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
443         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
444          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
445      components (pkg/atm_ & ocn_compon_interf):
446      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
447        CPP header file in all pkg source files.
448      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
449        ATM/OCN_CHECK_CPLCONFIG;
450      - add error-counter to track errors (e.g., in "data.cpl") and to stop
451        cleanly in ATM/OCN_CHECK_CPLCONFIG;
452      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
453        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
454        before PACKAGES_READPARMS;
455      verification/cpl_aim+ocn/:
456      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
457        "data.cpl" for coupler (in input_cpl).
458    o eesupp/inc:
459      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
460        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
461        to always cumulate tile local-sum in the same order (still uses
462        MPI_Allreduce like standard code).
463      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
464        that are now identical to standard version (in eesupp/inc).
465    o pkg/shelfice:
466      - add SHELFICETransCoeffTFile for initializing spatially varying
467        heat and salt transfer coefficients
468    o pkg/atm_compon_interf & ocn_compon_interf:
469      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
470        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
471      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
472    o pkg/atm_ocn_coupler:
473      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
474    o pkg/rbcs:
475      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
476        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
477      - add a short report (to STDOUT) about RBCS-mask settings.
478    
479    checkpoint65p (2015/10/23)
480    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
481        there is no adjoint test for EVP, we don't know what it does to the adjoint
482        solution, but at least there are no more recomputation warnings left
483    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
484        a chance of giving the same results as a fully converged VP (JFNK) solver
485    o tools/adjoint_options/adjoint_diva:
486      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
487    o pkg/streamice:
488      - spotted bug in streamice_driving_stress using dyG where should have been dxG
489    o pkg/exf:
490      - remove STOP statement that prevented to use wind or (wind-)stress
491        interpolation for constant-in-time forcing fields (wind/stress period = 0).
492    o pkg/seaice:
493      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
494        5 additionals 2D fields and 6 new store directives
495      - change logic in seaice_readparms.F: EVP code can now be turned on in
496        various ways, setting SEAICE_deltaTev is no longer required,
497        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
498        or SEAICEaEVPcoeff
499    o pkg/shelfice/shelfice_thermodynamics.F
500      - redefining uLoc/vLoc to u/v, instead of 2u/v
501    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
502      - this is an intermediate state of a truely converging EVP that has
503        the potential of outperforming implicit VP methods, I do not recommend
504        using it yet.
505      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
506        and all parameters are hardwired
507      - for convergence it still requires very smooth regularisations, that means,
508        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
509        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
510        specific averaging appears to be required, still subject to tuning
511      - still needs cleaning and I need to turn parameter into runtime parameters
512      - add code to compute and print residuals of iteration, compile with
513        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
514    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
515      that entered with r1.54 on Sep04, 2015, -> update results
516    
517    checkpoint65o (2015/09/14)
518    o pkg/mom_vecinv & mom_common:
519      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
520        called from there.
521      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
522        allows to use Vector-Invariant form in deep atmos and anelastic formulation
523    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
524      and Koenig-Beatty+Holland (2012)
525      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
526      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
527      - requires an extra input argument for S/R seaice_calc_viscosities
528      - tensileStrength's depth dependence is different from Itkin et al. (2015)
529        (to be changed and played with, for now exponential)
530    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
531      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
532        by AREA according to Connelly et al. (2004), JPO.
533      - For EVP and the LSR solver, the implicit part of the drag term is
534        the only non-zero term in the denominator when there is no ice (which
535        prevented running the model with zero ice-ocean drag). If
536        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
537        (or zero main diagonals BU/BV) which need to be caught. A practical
538        consequence is that for open water, the momentum equation reduce
539        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
540        they happen to be zero, often leading to a non-zero solution over
541        open water.
542    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
543        efficient EVP method.
544      - introduce area-weighted averages for e12 (analogously to
545        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
546        remain, but also changing the order of terms in the previous average
547        changed the results as much) -> update experiment
548      - add SEAICE_DELTA_SMOOTHREG code
549      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
550        TEM-code
551      - adjust loop bounds so that only required fields are computed
552      - add new averaging code for zetaZ/deltaZ (again similar to
553        seaice_calc_viscosities.F), inactive by default for now (will change
554        results again), but will replace old code eventually
555    o eesupp/src:
556      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
557        to always cumulate tile local-sum in the same order
558        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
559        Still uses MPI_Allreduce (like standard code) but on array of tiles
560        and should be faster than GLOBAL_SUM_SEND_RECV code.
561      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
562        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
563      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
564         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
565         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
566         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
567         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
568    
569    checkpoint65n (2015/07/29)
570    o pkg/thsice:
571      - add a warning when used with pkg/aim but without updating SST
572        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
573    o pkg/offline:
574      - change where Offline-Fields are loaded, from load_fields_driver.F to
575        directly within FORWARD_STEP, just after updating iter number and time;
576      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
577        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
578       These changes allow:
579        a) to recover exactly on-line results using deltaToffline=deltaTClock,
580        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
581        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
582        time-step, both with GM & KPP files and with recomputing these fields;
583        b) no needs to switch on staggerTimeStep anymore;
584        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
585      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
586    o pkg/offline:
587      - change (rarely used) offset-iteration parameter to an offset time (in s):
588        can easily recover previous offset-iter effect by setting offset-time
589        (offlineTimeOffset) to offset-iter x deltaToffline;
590      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
591        in KPP as part of surface buoyancy forcing) in offline run.
592      - fix ptracers KPP non-local term in the case where KPP is re-computed.
593    o OpenAD
594      - Adding preliminary ggl90 test to OpenAD verification.
595        Config. with ggl90 currently diverges after 64 time steps
596        so will need more work to become more stable
597      - Adding preliminary kpp test to OpenAD verification.
598        required small tweakes in kpp_routines.F
599      - Merge and update from Krishna Narayanan's contrib area:
600        * Add one variable for preliminary OpenAD DIVA
601        * Add replacement time-stepping for OpenAD DIVA
602        * genmake2 flag -diva (but only for OpenAD; preliminary)
603        * required modifs for OAD_support
604        successful preliminary test for tutorial_global_oce_biogeo/
605    o pkg/seaice:
606      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
607      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
608        delta with a smooth function in s/r seaice_calc_viscosity
609        (no effect on EVP)
610      - rename local suffix "sqr" into "sq" for more consistent variable names
611    o pkg/seaice:
612        add new parameter SEAICE_deltaMin that is used ***only***
613        for regularizing Delta (and nothing else, like the parameter
614        which is also used for all sorts of things SEAICE_EPS).
615        Defaults to SEAICE_EPS for backward compatibility only.
616    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
617        the wrong key by inialising it before use -> fixes a recomputation
618        problem but does not fix the gradient
619    o pkg/layers:
620      - move resetting of flux arrays to outside the iLa loop
621        (this caused layers_diapycnal to not work with more than one layer coord.)
622      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
623    o pkg/layers:
624      - remove from common block 3D layers fields (used to diagnose transport
625        in tracer coords) and declare them as local arrays in layers_calc.F
626    o pkg/seaice:
627      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
628        in lab_sea forward experiment (changes results -> updated)
629      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
630    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
631       computations; for SEAICE_VECTORIZE_LSR
632      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
633        sweep to the outside,
634      - remove store directives and add "CADJ loop sequential" directives
635        in analogy to model/src/solve_tridiagonal.F
636      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
637        boundaries to yield more readable code. This has also the charming side
638        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
639        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
640        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
641        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
642        an additional option)
643       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
644       but the adjoint gradients (which are affected by this change) still explode.
645    o coupler (atm & ocn _compon_interf):
646      - avoid using Exch2 IO mapping if not suitable.
647    
648    checkpoint65m (2015/06/15)
649    o pkg/layers:
650      - clean-up old parameters setting (from Sep 2012):
651        + remove old parameters setting from common block (declared locally);
652        + stop if any old parameter is mixed with new parameters;
653        + check for valid or consistent parameter setting (e.g., layers_name)
654      - check that layers_bounds for Pot.Density are in the right range;
655        this is supposed to catch un-updated setting after recently shifting
656        potential density field "prho" by -1000 (now in "sigma" scale).
657    o pkg/layers:
658      - Added missing call to layers_fill for keeping track of tottend in
659        pkg/diagnostics/diagnostics_fill_state.F
660    o pkg/layers:
661      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
662        of diapycnal fluxes
663    o pkg/layers:
664      - reverted changes to interpolation to previous treatment; there
665        was never actually a problem
666    o pkg/layers:
667      - fix interpolation of layers tracers in the presence of partial cells
668      - add lots of new functionality to compute water mass transformation
669        (enabled by CPP flag LAYERS_THERMODYNAMICS)
670      - add new calls from main code (diags_oceanic_surf_flux.F,
671        thermodynamics.F, impldiff.F) and gad to save the necessary fields
672        for layers_thermodynamics calculations
673    o pkg/ptracers:
674      - add capability of stepping a passive tracer forward without advection
675        by setting PTRACERS_advScheme to 0.
676    o pkg/diagnostics:
677      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
678    o pkg/layers:
679      - shift potential density field "prho" by -1000 for density layer averaging so
680        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
681        Note that density bin boundaries (layers_bounds in data.layers) have
682        to be set accordingly (i.e., shifted, in sigma scale).
683    o pkg/layers:
684      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
685      - fix calculation of layer non-weighted velocity and layer probability
686      - add diagnostics for pot.density used for layer averaging
687    o pkg/seaice:
688      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
689        positiveness, modify a few comments and improve variable names,
690      - the changed computation of deltaC affects most seaice-related
691        experiments at the truncation level.
692        seaice_itd.thermo is affected by far the most, with
693        only 7 digits of agreement remaining; update experiments.
694    
695    checkpoint65l (2015/05/04)
696    o pkg/shelfice:
697      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
698        factor drKp1 to zero where it is negative (ie. do not use
699        SHELFICEBoundaryLayer if hFacC>1)
700      - the same for factor drLoc in shelfice_forcing.F
701    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
702        with modules in ptracers, when using testreport option "-small_f"
703    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
704      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
705    o verification/testreport
706      - add new option -small_f
707        with this option testreport first makes the target small_f (*.f files)
708        before running make (all). This is useful for explicit inlining when
709        all sources need to be full available.
710    o pkg/exf/exf_interp.F:
711        remove previous changes related to reverse (decreasing) input grids latitude
712    
713    checkpoint65k (2015/04/01)
714    o pkg/ecco:
715        fix missing cosphi initialization; use eccoiter in place of optimcycle;
716        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
717        instead of active read/write
718    o pkg/ctrl:
719        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
720        instead of active read/write.
721    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
722        return if .NOT.useAUTODIFF
723    o pkg/seaice: add CPP brackets (cost function related).
724    o model/src:
725        add useAUTODIFF run time switch.
726    o pkg/exf/exf_interp.F:
727        add code to allow input grids with latitude starting in the north (i.e. when
728        j=1 corresponds to northern edge of field); modify global_with_exf to test
729        this feature.
730    o verification/testreport:
731      - replace "grep -A3" with POSIX conformal sed command, because there are
732        implementations of grep that cannot do contextual searches
733      - replace "cat -n" by "nl" (two occurrences), because not all implementations
734        of "cat" have the option "-n"
735    o model/src:
736        add new file gsw_teos10.F that contains 3 functions, more or less a copy
737        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
738        convert from conservative to potential temperature. For now they are not
739        called anywhere.
740    o pkg/ggl90: make "useIDEMIX" useful
741      - re-organize code in s/r ggl90_calc a little to move computations that
742        are different for idemix into separate loops (changes verification
743        experiment idemix at truncation level, 12 digits remain -> updated)
744      - requires 2 new 2D fields KappaM, verticalShear
745      - make hFacI and recip_hFacI local 3D variables that are passed to
746        s/r ggl90_idemix
747      - fix and improve some comments
748    
749    checkpoint65j (2015/02/25)
750    o pkg/openad
751      - synchronize seawater.F with version in model/src: replace routine
752        body of sw_temp by calling sw_ptmp and fix/add a few comments.
753    o pkg/mnc:
754      - change default value of pickup_read/write_mnc params to FALSE
755        (since few features are missing in reading MNC pickup files).
756    o model/src:
757      - change default (background) vertical diffusivity for salt to be the
758        temperature (background) vertical diffusivity.
759      - change background vertical diffusivity in vertical mixing pkgs ggl90,
760        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
761        This makes ptracers default diffusivity (that uses salt diffKr) more
762        consistent with vertical mixing schemes.
763    o verification/testreport:
764      - fix typo in "-pcls" option ;
765      - put temp files in /tmp (instead of in local dir)
766      - add option "-ncad" to use genmake2 new option "-nocat4ad"
767      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
768    o pkg/ggl90 (idemix code):
769      - apply few fixes ; add some missing "_d 0" ; update output of exp.
770        global_ocean.90x40x15.idemix
771    o OpenAD
772      - enable active file I/O and begin removal of work-around code
773        for OpenAD for handling control variables (memory vs. active files)
774      - new CPP options file OPENAD_OPTIONS.h
775      - revert to genarr2d gradient check for hs94.1x64x5
776      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
777      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
778    o tools/genmake2:
779      - add option for an alternative Makefile (from Martin) where multiple
780        source files are sent to TAF (instead of all in one file).
781    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
782      - code provided by Carsten Eden as an extension of ggl90
783      - so far the code is turned on within ggl90 by setting a CPP-flag at
784        compile time; a runtime flag implementation is not yet complete
785      - tested in new verification experiment global_ocean.90x40x15.idemix
786    o verification:
787      - reduce length of the AD test run by half for experiments
788        global_ocean.cs32x15 (std + thsice) and isomip
789      - enable active file I/O for OpenAD, adjust verifications accordingly
790      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
791    o verification/testreport:
792      - fix two non-POSIX sed statements so that there are no error messages
793        on Mac OS X
794      - replace hostname -s with hostname | sed 's/\..*$//'
795    o model/src/seawater.F:
796      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
797        (following the matlab code), which would have avoided the bug caught
798        by Matt (see below) in the first place
799    o pkg/shelfice:
800      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
801        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
802      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
803        ice-shelf case (i.e., within surface level).
804      - add config summary in shelfice_check.F
805      - remove global variable recip_SHELFICElatentHeat and replace by a local
806        variable recip_latentHeat
807      - introduce diagnostics for friction velocity uStar (in case of
808        SHELFICEuseGammaFrict)
809      - change verification experiment isomip.htd:
810        + start from pickup (as input_ad at nIter0=8640)
811        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
812        + test SHELFICEuseGammaFrict = .TRUE.
813        + test SHELFICEadvDiffHeatFlux = .TRUE.
814    o model/src:
815      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
816        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
817        update output of experiments global_with_exf.yearly and isomip (all 6).
818    o pkg/shelfice:
819      - change setting of kTopC to also be zero where there is no ice-shelf.
820      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
821        ice-shelf is.
822      - first attempt to get RealFreshWaterFlux effects: for now, only without
823        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
824    o pkg/seaice: add the option to prescribe a fixed thickness PDF
825      for thermodynamic calculations
826      - because of divisions of the type 7/7 not exactly equal to 1, this change
827        affects results of some verification experiments by up to 4 digits:
828        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
829        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
830        adjoint: lab_sea, lab_sea.noseaicedyn
831        -> updated
832    
833    checkpoint65i (2015/01/23)
834    o model/src:
835      - change units of frictionHeating field from W to W/m^2
836      - fix bug in frictional heating from stratospheric drag in
837        S/R ATM_PHYS_TENDENCY_APPLY_V
838      - with synchronous time-stepping: move resetting to zero of frictionHeating
839        field from load_fields_driver.F to thermodynamics.F ;
840      - add diagnostics for frictional heating.
841    o model/src & gmredi K3D:
842      - add frictionHeating field to pickup-files (for synchronous time-stepping)
843      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
844      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
845        and name in pickup file).
846      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
847    o model/src:
848      - move (from ini_forcing.F) initialisation of all arrays in header file
849        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
850        (since Nov 2012) with option selectAddFluid=1.
851    o pkg/shelfice:
852      - change units (+ document) of newly added field "shelfIceMassDynTendency"
853      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
854    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
855    o pkg/seaice: two new runtime parameters:
856      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
857        long overdue
858      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
859        parameterization of tensil stress for fast ice (does not do anything yet)
860    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
861        for LSR: move checking overlaps out of JFNK-if-block
862    o pkg/atm_phys:
863      - move copy of grid and dynamical fields out of atm_phys_driver.F into
864        new S/R ATM_PHYS_DYN2PHYS.
865      - fix level height for Linear Free-Surf case (to be consistent with
866        fixed-in-time pressure levels).
867    o pkg/mom_common (bottomdrag):
868      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
869        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
870        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
871    o pkg/shelfice (u/v_drag):
872      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
873      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
874        (now similar to shelfice_u_drag.F)
875      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
876        from mom_vecinv.F (similar to mom_fluxform calls).
877    o pkg/mom_common (bottomdrag):
878      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
879      - add options for alternative discretisation of velocity norm in quadratic
880        bottom drag: averaging of grid-cell-center KE to U.point and V.point
881        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
882        improves when averaging only the other component (e.g. vVel for U bottom
883        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
884      - add options (bottomVisc_pCell) to account for partial-cell in bottom
885        friction (no-slip BC) thus getting the true distance from the bottom;
886        off by default since this also reduces model stability (explicit bottom
887        friction). Changes produce different machine truncation with linear-drag
888        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
889        front_relax (bvp & mxl, 10 & 11 digits).
890    o model/src & mom pkgs:
891      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
892        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
893      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
894        just copy level Nr value to level Nr+1.
895    o doc:
896      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
897    o pkg/shelfice:
898      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
899        SHELFICE.h: move array shelficemass to init_varia, initialise
900        from array shelficemassinit, which is set in init_fixed and
901        has option to be set from file; introduce array
902        shelficeMassDynTend array, set thru file in init_fixed
903      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
904        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
905        pkg/streamice
906      - shelfice_thermodynamics.F: call shelfice_step_icemass if
907        SHELFICEMassStepping = .true.
908      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
909    
910    checkpoint65h (2014/12/17)
911    o verification/global_ocean.90x40x15, global_ocean_ebm:
912      - update to generic controls.
913    o pkg/ctrl:
914      - ctrl_map_ini_genarr.F: test for igen>0
915      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
916      - move gentim2d part of ctrl_map_ini_genarr.F to
917        new separate routine : ctrl_map_ini_gentim2d.F
918      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
919        add time variable weights and cyclic controls (time mean,
920        seasonal cycle, etc) capabilities to gentim2d
921    o pkg/ecco:
922      - move reading of error, conversion to weights from
923        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
924    o global_oce_llc90, cs32:
925      - activte sbo.
926      - CTRL_SIZE.h : add maxCtrlProc.
927      - activate the new genctrl capabilities.
928      - update following reorganization of global_oce_input_fields.tar.gz  
929    o pkg/ctrl/ctrl_ad_diff.list:
930      - add missing ctrl_init_rec.f
931    o tools/OAD_support/keepOriginal:
932      - add ctrl_init_rec.F
933    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
934      - avoid recomputations of xx_gentim2d_dummy.
935    o momentum diagnostics:
936      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
937        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
938    o pkg/seaice/seaice_lsr.F:
939      - fix computation of BU/BV, make sure they are non-zero, only necessary
940        for cubed sphere exchanges and SEAICE_OLx/y>0.
941        This makes calling s/r fill_cs_corner_rl obsolete (removed).
942    o verification/global_ocean.cs32x15/input.seaice
943      - add test for strong implicit coupling and restricted addtive Schwarz
944        methods for LSR
945      - update results/output.seaice.txt
946    o verification/tutorial_global_oce_biogeo:
947      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
948        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
949        update output_adm,_oadm,_tlm.txt
950    o pkg/dic:
951      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
952      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
953        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
954    o verification/tutorial_global_oce_biogeo:
955      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
956        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
957        update output_adm,_oadm,_tlm.txt
958    o eesupp/src:
959      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
960        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
961    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
962      LSR (following Hutchings et al. 2004)
963      - introduce zetaZ as a global variable (requires adjustments in
964        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
965        in seaice_calc_viscosities.F
966      - new flag SEAICEuseStrImpCpl (default off)
967      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
968        momentum equations
969      - JFNK-solver (preconditioner) adjusted to allow using this method
970        (where it does not have any positive effect)
971    o pkg/seaice
972      - add overlap for restrictive additive Schwartz method also to LSR, but
973        turn it off by default (because it only seems to work for non-cubed
974        sphere/llc topologies)
975    o pkg/autodiff
976      - add extra exchanges in addummy_in_steppging also for mnc output
977    o pkg/seaice:
978      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
979        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
980    o pkg/obcs:
981      - add option to specify domain-connected piece Id along OB though files
982        (for now, only used to diagnose PhiVel; default =1 -> global correction)
983      - modify obcs_diag_balance.F to process each connected-part separately;
984        exclude OB where Id = 0 but keep the full divergence there (-> constant
985        Psi along this portion of OB and all inflow derived from grad(Phi))
986      - add example of OB-conect files in verification/so_box_biogeo/input.
987    o pkg/diagnostics:
988      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
989      a) use non zero matrix element across OB and solve for Phi 1 grid point
990         outside OB (i.e, where tracer OBCS are applied).
991      b) global imbalance of inFlow/outFlow across OB: instead of modifying
992         velocity across OB, spread it uniformly along the OB in the RHS.
993    
994    checkpoint65g (2014/11/19)
995    o pkg/diagnostcis:
996      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
997    o pkg/my82,pp81,kl10:
998      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
999        field diffKr as background diffusivity to set minimum diffusivity value.
1000    o pkg/seaice:
1001      - add new parameter SEAICEuseEVPrev (for revisited EVP by
1002        Bouillon et al 2013)
1003      - add SEAICE_evpAlpha/Beta to namelist
1004      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
1005        involve trivial re-ordering of divisions/multiplications that should not
1006        have any effects, but ... they do change the results of lab_sea.hb87 so
1007        that only 2 digits of agreement remain, in line with the general
1008        instability/fragility of the evp-code. For now, I do not care and just
1009        update the verification experiment
1010    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
1011      - remove xx_genarr2d_numsmooth etc
1012      - use xx_genarr2d_preproc etc instead
1013      - carry out smooth_correl2D at initialization stage rather than during
1014        time stepping.
1015      - get smoothOpNb from xx_gentim2d_preproc
1016    o global_oce_cs32 :
1017      - add test of generic ecco capabilities.
1018    o pkg/exf/exf_getsurfacefluxes.F :
1019      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
1020    o pkg/ctrl,ecco :
1021      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
1022        is defined.
1023    o pkg/seaice: add diagnostics for Delta (deformation parameter)
1024    o model/src:
1025      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
1026        diffusivity (background) is specified but ignored.
1027    o verification:
1028      - in testreport, convert hostname to lower case for default output dir name
1029    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
1030    o pkg/dic: add modifications from Hajoon:
1031      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
1032      - light attenuation: add self-shading effect by climatological Chlorophyll
1033        (read from file).
1034    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
1035        compiles when SEAICE_ALLOW_DYNAMICS is undefined
1036    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
1037        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
1038        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
1039        approach where CPP_OPTIONS.h includes an omnipotent
1040        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
1041    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
1042        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
1043    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
1044        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
1045        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
1046    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
1047      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
1048      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
1049      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
1050      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
1051    o pkg/ctrl,ecco,exf :
1052      - remove variables associated with NON-generic costs,
1053        unless ECCO_CTRL_DEPRECATED is defined.
1054      - remove NON-generic NON-obcs controls,
1055        unless ECCO_CTRL_DEPRECATED is defined.
1056    o pkg/ctrl : added ctrl_local_params.h
1057    o pkg/ecco : added ecco_local_params.h
1058    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
1059        experiments, which will progressively be removed once the
1060        experiments are revised to use only generic controls/costs.
1061    
1062    checkpoint65f (2014/10/13)
1063    o pkg/ctrl, ecco, seaice : minor changes in headers
1064    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
1065        cost function and control capabilities added since checkpoint65c.
1066    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
1067    o pkg/ecco: increase modularity and improve logic
1068      - ecco_toolbox.F (new) : basic operations that are often used,
1069        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
1070        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
1071      - cost_gencal.F (new) : determine filnames and records.
1072      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
1073      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
1074        and exploit the above functions leading to more compact code.
1075      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
1076      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
1077        using_ers, using_gfo, using_mdt is now only defined within gencost)
1078    o pkg/ecco: extend generic cost capabilities
1079      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
1080        capabilities via gencost_preproc (+ _c,_i,_r related params),
1081        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
1082        gencost_outputlevel arguments to cost_generic
1083      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
1084        and active_read, making room for gencost_preproc to take effect.
1085        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
1086      - pkg/ecco/cost_generic.F :
1087        compute and store misfit maks*(model-data) in localdif that is
1088        then used in cost and for output, output misfit if outlev.GT.0
1089      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
1090        rather gencost_barfile for deciding whether to write barfile
1091      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
1092      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
1093        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
1094      - pkg/ecco/ecco_summary.F : report gencost variables
1095      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
1096    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
1097    o pkg/ecco: internal re-organization
1098      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
1099        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
1100        mv relevant variables definition from ecco_cost.h to ecco.h,
1101        make sure gencost routines only include ecco.h)
1102      - throughout : add missing CCP switches, rm unused variables,
1103        and rm un-necessary CPP switches
1104      - throughout gencost routines : replace modelstartdate with
1105        gencost_startdate when needed
1106      - cost_bp_read.F : use arguments, instead of common blocs
1107        so that it can be used also by (new) cost_gencost_bpv4.F
1108      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
1109      - ecco_phys.F : compute etanFull
1110      - ecco_readparms.F : rename using_topex as using_tpj, add
1111        bpv4-grace to gencost list, initialize added parameters
1112      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
1113    
1114    checkpoint65e (2014/09/28)
1115    o pkg/obcs:
1116      - replaced the just-added CPP options with run-time variables
1117        (see pkg/obcs/OBCS_PARAMS.h for details)
1118    o pkg/obcs:
1119      - add additional CPP options for sponge boundary layers
1120        (see pkg/obcs/OBCS_OPTIONS.h for details)
1121    o pkg/atm_phys:
1122      - implement simple (obliquity only, assuming circular planet orbit)
1123        seasonal cycle for incoming insolation ; used when run-time parameter
1124        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
1125    o pkg/exf, pkg/ecco, pkg/ctrl:
1126      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
1127      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
1128      - implement gentim2d for xx_tauu, xx_tauv
1129    o pkg/ctrl, pkg/ecco :
1130      - fix and complement the generic controls implementation
1131    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
1132        pkg/shelfice/shelfice_thermodynamics.F,
1133        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
1134        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
1135      - add weight in CTRL_GET_GEN calls
1136    o pkg/ctrl :
1137      - ctrl_get_gen.F : add weight as input parameter, and apply
1138        it directly rather than using smooth_correl2Dw (to be retired).
1139      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
1140    o pkg/ctrl :
1141      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
1142        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
1143      - re-activate ctrl_summary (call in ctrl_init.F)
1144    o pkg/ctrl/ctrl_cost_gen.F :
1145      - fix CCP brackets, remove un-necessary myiter, mytime
1146    o pkg/ecco, pkg/ctrl :
1147      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
1148      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
1149      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
1150      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
1151    
1152    checkpoint65d (2014/09/15)
1153    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
1154      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
1155        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
1156    o pkg/ctrl/ctrl_map_ini_genarr.F :
1157      - remove compilation failure
1158      - replace hard coded example
1159      - use ctrl_map_ini_gen2D, 3D
1160    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
1161      - on/off switch based upon xx_genarr2d_weight,3d
1162    o src/packages_init_variables.F :
1163      - regroup pkg/estimation calls
1164      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1165        (moved to ctrl_init_variables)
1166    o cost/cost_init_varia.F :
1167      - remove ecco_cost_init_varia
1168        (moved to ecco_init_varia)
1169    o ctrl/ctrl_init_variables.F :
1170      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1171      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
1172    o ctrl/ctrl_map_ini.F :
1173      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
1174        (moved to ctrl_init_variables)
1175    o ctrl/ctrl_map_ini_ecco.F :
1176      - remove ECCO_PHYS (mv to ecco_init_varia)
1177      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
1178    o ecco/ecco_ad_diff.list :
1179      - add ecco_init_varia.f
1180    o ecco/ecco_init_varia.F
1181      - new routine
1182    o pkg/streamice:
1183      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
1184        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
1185      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
1186    o pkg/generic_advdiff:
1187      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
1188    o pkg/exf:
1189      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
1190         xxg_precip capability
1191      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
1192    o pkg/ctrl:
1193      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
1194    o model/src/load_fields_driver.F :
1195      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
1196        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
1197    o OpenAD verification experiments:
1198      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
1199        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
1200        for now, only in pkgs used in OpenAD verification experiments.
1201      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
1202        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
1203        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
1204        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
1205    o OpenAD verification tests:
1206      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
1207      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
1208        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
1209      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
1210        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
1211    o model/src & generic_advdiff:
1212      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
1213        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
1214        dynamics requires valid tracer forcing only over tile interior but, for
1215        some diagnostics, may need to extend it over 1 point in tile halo region.
1216      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
1217        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
1218        setting in temp/salt/ptracer_integrate.F
1219    o pkg/dic:
1220      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
1221        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
1222        in gchem_forcing_sep.F
1223    o pkg/autodiff & obcs:
1224      - add storage of current OB values for U & V (was already done for T & S).
1225    
1226    checkpoint65c (2014/08/30)
1227    o pkg/dic:
1228      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
1229        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
1230        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
1231    o verification:
1232      - new experiment testing OBCS and DIC pkgs, using params & output from
1233        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
1234        passage: take OBCS from the last year of a 2 yrs simulation and initial
1235        conditions from t=1.yr while keeping the same forcing.
1236    o model/src:
1237      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
1238        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
1239    o pkg/diagnostics (Stats-Diags):
1240      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
1241        a) refine region where stats are computed, excluding where arrhFac=0 ;
1242        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
1243        c) extend regional stats over the region edges (for U or V pt location).
1244    o pkg/gchem:
1245      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
1246        pkg/dic is currently changing/updating ptracers values beyond the OB).
1247    o verification (hs94):
1248      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
1249        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
1250        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
1251        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
1252    o pkg/ptracers:
1253      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
1254        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
1255      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
1256        with AB-2 code (so that it get tested).
1257    o model/src:
1258      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
1259        with AB-2 code (previously only available with AB-3 code).
1260        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
1261        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
1262        there, by calling CYCLE_AB_TRACER).
1263    o pkg/generic_advdiff:
1264      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
1265        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
1266        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
1267        S/R temp/salt/ptracers_integrate.F
1268    o model/src & pkg/ptracers:
1269      - remove common block variables gT,gS (in DYNVARS.h), except when
1270         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
1271      - remove common block variable gPtr.
1272    o model/src & pkgs:
1273      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
1274         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
1275         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
1276         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
1277      + change accordingly all calling S/R.
1278      - use local temperature/salinity/ptracer tendency array (without bi,bj)
1279        in S/R temp/salt/ptracers_integrate.F
1280    o pkg/seaice:
1281      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
1282        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
1283      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
1284        in seaice_lsr
1285      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
1286        in s/r seaice_lsr_calc_coeffs
1287    o pkg/mdsio:
1288      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
1289        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
1290        too long (e.g., > MAX_LEN_FNAM/2 )
1291    
1292    checkpoint65b (2014/08/12)
1293    o pkg/matrix:
1294      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
1295    o model/src:
1296      - fix initialisation of geothermalFile; compile geothermal-flux code in
1297        natl_box verification experiment.
1298    o model/src & pkg/down_slope:
1299      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
1300      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
1301        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
1302        results at machine truncation level: update output of experiments
1303        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
1304    o pkg/diagnostics (Stats-Diags):
1305      - do not cumulate the full volume when DIAGNOSTICS_FILL is
1306        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
1307        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
1308        times (but Min,Max and StD are still wrong).
1309    o model/src:
1310      - add geothermal flux forcing: read in ini_forcing.F as time-constant
1311        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
1312    o model/src:
1313      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
1314        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
1315        arrays are already updated while adjustments (filters, conv.adjustment) are
1316        still applied later, in S/R TRACERS_CORRECTION_STEP.
1317    o model/src:
1318      - store in common bloc array "rhoInSitu" the virtual potential temperature
1319        anomaly that is used to compute geopotential: this make the atmos code
1320        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
1321    o pkg/seaice/seaice_lsr.F
1322      - rename integer variable ilcall to ipass (that's what it is called
1323        in the residual diagnostics
1324      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
1325        default) for improved non-linear convergence of the first few steps
1326      - adjust a few comments and add new ones to explain some of the store
1327        directives
1328    o pkg/generic_advdiff (& ptracers):
1329      - re-work the code to check for valid advection scheme and for minimum
1330        size of overlap (now stored in local common bloc in gad_advscheme.F)
1331    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
1332      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
1333      - add an auxilliary variable "bet" and fix store directives and keys in
1334        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
1335        less exact gradients in my tests); but there are still
1336        recomputation warning (although gradients are sort of OK), when
1337        SEAICE_LSR_VECTORIZE is not defined, so this flag and
1338        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
1339      - update verification experiments lab_sea.
1340      - change some comments in S/R seaice_calc_viscosities
1341    o model/src:
1342      - if staggerTimeStep=T, always apply exchange to velocity field in
1343        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
1344        (independent of using multi-dim advection or not); no effect on FWD run
1345        but affects AD results (at machine truncation level): update output of
1346        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
1347        and isomip (oad: 12.d).
1348    o pkg/generic_advdiff:
1349      - stop if doAB_onGtGs is set to FALSE but ignored
1350      - refine warning related to stability of tracer time-stepping
1351        regarding internal wave dynamics.
1352      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
1353        on staggerTimeStep & implicitIntGravWave (will now get a warning
1354        if potentially unstable).
1355    o pkg/kl10:
1356      - add new pkg "kl10" for mixing due to internal wave breaking, from
1357        http://www.sciencedirect.com/science/article/pii/S1463500310000144
1358        (contribution from Jody Klymak), tested in verification experiment
1359        verification/internal_wave/input.kl10/
1360    o isomip experiment:
1361      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
1362        (input.htd) and update the output.
1363    o cd_code experiments:
1364      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
1365        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
1366        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
1367        update the corresponding output.
1368    o pkg/seaice:
1369      - reduce the number of include files and store directives in
1370        S/R seaice_lsr_tridiagu/v
1371      - change the order of loops in one case in S/R seaice_lsr_tridiagv
1372        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
1373        get rid off one store directive (a TAF bug?)
1374      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
1375        S/R seaice_lsr_tridiagv to change the loop range for consistency
1376      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
1377      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
1378        S/R seaice_lsr_tridiagu/v (requires update of
1379        offline_exf_seaice/input.dyn_jfnk)
1380    
1381    checkpoint65a (2014/07/27)
1382    o model/src:
1383      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
1384        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
1385        (topo in p-coords, ice-shelf in z-coords); update output of experiments
1386        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
1387    o model/src:
1388      - collect momentum forcing tendency into local 2-D array (passed as argument
1389        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
1390        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
1391        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
1392      - collect T & S forcing tendency into local 2-D array (passed as argument to
1393        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
1394        affects results at machine truncation level (e.g., ocean: if using
1395        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
1396        correction due to vertical advection).
1397      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
1398        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
1399        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
1400        obcs_ctrl (ad & fwd grd @ 12 & 7).
1401    o pkg/ptracers & diagnostics:
1402      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
1403        title (to avoid some unexpected truncation); sort out ptracers diags units.
1404      - collect ptracer forcing tendency into local 2-D array (passed as argument
1405        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
1406    
1407    checkpoint65 (2014/07/18)
1408    o pkg/fizhi:
1409      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
1410        affects results at machine truncation level. Update output of experiments
1411        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
1412    o pkg/seaice: more clean up
1413      - rename TAF common block tapes to be more consistent and remove
1414        unnecessary duplicates
1415      - add store directives to remove more recomputations, but use smaller
1416        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
1417        The idea behind this flag is to reduce the memory footprint when the
1418        adjoint of the LSR is not required. As of now, defining the flag
1419        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
1420        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
1421        For experiment offline_exf_seaice, this means on a linux box with gfortran
1422        nearly a factor of 10 (but keep in mind there is mostly seaice code in
1423        this experiment):
1424        > size mitgcmuv_ad
1425        text    data        bss     dec        hex
1426        5100659 1216  220458952  225560827  d71c8fb
1427        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
1428        but only a moderate increase of 36% for global_ocean.cs32x15:
1429        text    data        bss     dec        hex
1430        6695027 1648 1014578664 1021275339 3cdf6ccb
1431        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
1432      - note: there are still recomputations in global_ocean.cs32x15 and
1433        offline_exf_seaice and the gradient agreement changes (gets a
1434        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
1435      - in general, the AD gradients still are wrong
1436    o OpenAD
1437      - clean up code_oad/ directories somewhat by moving files
1438        dontCompile, dontTransform, keepOriginal to OAD_support/
1439    o model/src:
1440      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
1441        (not currently tested): add dissipation terms before NLFS rescaling of
1442        tendencies (previously done after).
1443    o pkg/diagnostics:
1444      - write stats-diags in ascii file with more digits (same as in monitor).
1445    o pkg/down_slope:
1446      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
1447        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
1448    o model/src:
1449      - new file "apply_forcing.F" containing all the code previously in
1450        external_forcing.F, but with new argument list: pass, as new argument,
1451        the current level tendency array to update (instead of a direct update
1452        of the common bloc array). Change the corresponding calls.
1453      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
1454        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
1455    o pkg/seaice/seaice_lsr, a little bit of clean up
1456      - rearrange some code blocks, so that now all calculations for
1457        setting up the right-hand-sides done within one single block
1458        (I find that easier to read and understand)
1459      - rearrange freedrift-code to reduce the number of ifdefs
1460      - adjust some indentations and comments
1461    
1462    checkpoint64z (2014/07/10)
1463    o model/src and several pkgs:
1464      - change argument list of all S/R called from external_forcing.F and
1465        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
1466        to pass, as argument, the current level tendency array to update
1467        (instead of a direct update of the common bloc array).
1468      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
1469      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
1470    o pkg/seaice/seaice_lsr.F
1471      - always initialize local arrays in seaice_lsr_tridiagu/v
1472      - add more local tapes to seaice_lsr_tridiagu/v
1473      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
1474        keep it in bi/bj loop; this seems to be essential
1475      - gradients are still wrong but only by 4-7 orders of magnitude
1476        instead of 15 orders of magnitude, lab_sea improves a little
1477    o pkg/seaice
1478      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
1479        generates unnecessary code in seaice_lsr_ad
1480      - add more store directives in seaice_lsr to avoid unnecessary code
1481        in seaice_lsr_ad
1482      - exclude some residual computations in seaice_lsr when
1483        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
1484        in seaice_lsr_ad
1485      - add more storing, a new tape (model/src/the_main_loop.F) and
1486        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
1487        and klockey should be checked by a specialist)
1488      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
1489        and update lab_sea after previous changes in pkg/seaice below
1490    o pkg/autodiff:
1491      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
1492        viscFacInAd : run time parameters allowing for adjoint switches
1493        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
1494    o pkg/ecco:
1495      - introduce cost_gencost_boxmean.F that computes a box mean
1496        temperature (for use in adjoint sensitivity studies).
1497    o model/src/set_defaults.F : initialize viscFacAdj to 1.
1498    o pkg/mom_common/mom_calc_visc.F:
1499      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
1500    o pkg/seaice/seaice_summary.F:
1501      - statement for SEAICEadjMODE now in autodiff_readparms.F
1502    o pkg/seaice:
1503      - remove some store directives and add new ones in an effort to get
1504        finally rid off the recomputation warnings. This is successful
1505        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
1506        defined (i.e. no extensive recomputation warnings left), but there
1507        are still too many recomputations on the solver iteration level
1508      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
1509      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
1510        SEAICE_SIZE.h
1511      - add a store directive in S/R seaice_calc_viscosities
1512    o pkg/seaice (ITD code):
1513      - fix definition of Hlimit for multi-threaded case
1514      - use double precision arithmetic to compute Hlimit: this affects results;
1515        update output of experiment seaice_itd.
1516    o replace content of verification/seaice_itd
1517      - instead of a 1D column use the configuration of offline_exf_seaice
1518        to test the ice thickness distribution code with ridging
1519      - this is a first shot at this experiment
1520      - change of some defaults of ridging parameters SEAICEhStar (from
1521        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
1522        and lot of new comments.
1523    
1524    checkpoint64y (2014/06/20)
1525    o pkg/seaice/seaice_reg_ridge.F:
1526      - modify the regularization of very small volumes of ice; only check
1527        total volume HEFF, and do not apply correction to individual ice
1528        classes because that leads to funny patterns in the heat and fw-fluxes
1529        into the ocean. Adjust seaice_itd/results/output.txt
1530      - replace nITD by SEAICE_multDim in loop-ranges
1531    o pkg/exf:
1532      - add code to process the case field period = -12. with UV interpolation.
1533      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
1534        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
1535    o verification/global_with_exf:
1536      - switch all fields period to -12. (was previously untested) in input/data.exf
1537        (but keep secondary test ".yearly" unchanged); update the reference output.
1538    o pkg/cal:
1539      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
1540    o pkg/exf:
1541      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
1542        to replace logical switch "exf_verbose"
1543      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
1544    o pkg/sbo:
1545      - update from Katherine Quinn: evaluate mass directly from density and SSH
1546        (budget using Finite Volume method) instead of from bottom pressure.
1547      - allow testreport to collect few selected SBO output ; tested in exp.
1548        global_ocean.90x40x15 (after updating the results, to include SBO output).
1549      - fix some multi-threading issues (in output part).
1550    o model/src & most packages:
1551      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
1552      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
1553        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
1554        "data.{pkg}" exist ; and leave the S/R (return) just after.
1555      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
1556        + call LAND_READPARMS from packages_readparms.F
1557    o pkg/seaice:
1558      - remove code that resets useThSice in S/R seaice_readparms and
1559        replace it by a warning in S/R seaice_check
1560      - remove parameter MULTDIM, replace with nITD and runtime
1561        parameter SEAICE_multDim (still hard-wired to nITD if
1562        SEAICE_ITD is defined)
1563    
1564    checkpoint64x (2014/05/24)
1565    o verification/lab_sea:
1566      - update adjoint and TLM output following changes to pkg/salt_plume
1567      - un-do the update after putting back local recip_Cp in few places.
1568    o pkg/salt_plume: modifications by An Nguyen:
1569      - add capability to do brine rejection (salt-plume) as function of
1570        volume+tracers (instead of only salinity tracer).
1571      - conserve volume by exchanging volume from each kLev to above to
1572        accommodate in-coming brine volume
1573      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
1574      - switch KPP surf buoyancy due to brine forcing to 3-d
1575        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
1576      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
1577      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
1578        in East/West Arctic.
1579    o pkg/sbo:
1580      - incorporate modifications from Katherine Quinn to enable the use of sbo
1581        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
1582        output for future testreport verification (unfinished).
1583    o pkg/atm_phys:
1584      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
1585        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
1586        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
1587    o pkg/seaice
1588      seaice_calc_ice_strength.F: modify expression to avoid divisions
1589        (affects truncation)
1590      seaice_do_ridging.F: clean up the insectarium
1591      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
1592      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
1593      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
1594      - add some debugging information and error messages (warnings)
1595    o model/src: modifications relatd to atmosphere p*:
1596      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
1597      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
1598        of vertical profile tRef in geopotential background and anomaly.
1599      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
1600        and pkg/atm_phys.
1601      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
1602        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
1603    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
1604    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
1605        not used right now, but can be used in BGC packages to fix conservation.
1606    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
1607        other packages too.
1608    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
1609        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
1610    o model/src:
1611      - since we have several heat capacity (even in model/src), define "recip_Cp"
1612        as local variable (no longer in common block) to avoid any confusion.
1613      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
1614    o pkg/exf:
1615      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
1616        air density as function of air Temp, Humidity and atm pressure.
1617    
1618    checkpoint64w (2014/05/02)
1619    o verification:
1620      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
1621        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
1622        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
1623        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
1624        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
1625    o model/src: for atmosphere in p* coords:
1626      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
1627      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
1628        but not yet activated.
1629    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
1630      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
1631      - this changes the results (but not for any verification experiment, because
1632        none tests this), but avoids having an extra field in the restart files
1633    o pkg/seaice: remove global variable TICE (not needed)
1634      - replace by TICES or local variable where necessary (cost_seaice_test,
1635        seaice_diagnostics_state)
1636      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
1637      - use specific read/write routines for reading and writing individual leves
1638        of a multilevel field
1639    o pkg/ctrl & model/inc:
1640      - move additional anomaly fields of control vars (related to options:
1641         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
1642        from DYNVARS.h into new header file: CTRL_FIELDS.h
1643    o pkg/seaice: some small modifications to the ridging code
1644      - make fw2ObyRidge a global variable and add the freshwater flux to
1645        seaice_growth
1646      - pass actual thickness from seaice_prepare_ridging, so that it is
1647        computed only in one place and compute it in the same way as in
1648        seaice_growth
1649      - initialise more fields in seaice_do_ridging that where cause floating
1650        point exceptions over land
1651    o pkg/seaice: preparations for ridging code and first real ridging code
1652      - move most of "PART 1" of S/R seaice_growth into a new and separate
1653        S/R seaice_reg_ridge that will both regularize the state variable after
1654        advection call the actual ridging routine;
1655      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
1656        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
1657      - remove ridging code from seaice_advdiff
1658      - clean up remaining part 1 of seaice_growth in an attempt to make it
1659        more readable (this is probably subjective)
1660      - call seaice_itd_redist once in the initialisation phase to have the initial
1661        conditions in the correct category
1662      - finally: add new ridging routine for ITD code
1663    
1664    checkpoint64v (2014/04/11)
1665    o pkg/ecco:
1666      - add runtime parameters mdt[start,end]date[1,2]
1667      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
1668    o pkg/seaice:
1669      - make deltaC a global variable, so that it can be used in ridging code
1670      - first step towards ridging: introduce new routines that compute
1671        ice strength based on ridging parameters
1672      - add diagnostic for HSNOWITD
1673      - add opnWtrFrac as a global variable (required for ridging scheme)
1674    o pkg/salt_plume + pkg/seaice/seaice_growth.F
1675      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
1676        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
1677    o verification/hs94.1x64x5:
1678      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
1679      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
1680    o autodiff:
1681      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
1682        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
1683        For now, only in pkgs used in verification/hs94.1x64x5.
1684      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
1685        which are specific to TAF/TAMC).
1686      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
1687        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
1688        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
1689      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
1690        building mitgcmuv_ad (make adAll).
1691    o pkg/ecco:
1692      - cost_gencost_seaicev4.F:
1693         reformulate proxy cost as function of sst and local param SEAICE_freeze
1694         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
1695      - add stop statement if old names siv4-[sst,vol] are used
1696      - add snapshots + cost reports for atmospheric longwave
1697      - remove factor 0.1 in front of wtau[u,v]
1698      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
1699         ALLOW_TMI_SST_COST_CONTRIBUTION
1700    o pkg/atm_phys:
1701      - add some diagnostics for Short-wave and for convection S/R.
1702    o pkg/seaice/seaice_growth:
1703      - fix a bug in the lateral melt parameterization for SEAICE_ITD
1704        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
1705      - rearrange loop order for better vector code in the same code block
1706      - rewrite the floeDiameter formula to have fewer divisions
1707      -  (miraculously) none of this changes the results of seaice_itd
1708    o pkg/smooth:
1709      - move param smooth2Ddiffnbt to pkg/ecco
1710    o pkg/salt_plume:
1711      - salt_plume_frac.F:
1712         clean up local param names
1713         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
1714    o pkg/rw:
1715      - add RS version of S/R READ_MFLDS_LEV.
1716    o pkg/streamice:
1717      - fix the restart test by writing/reading pickup_streamice files.
1718    o pkg/seaice:
1719      - refine checks for jfnk-related parameters
1720      - comment out if statement with SEAICEuseIMEX parameter as long as there
1721        is no IMEX code to avoid confusion and surprises
1722    
1723    checkpoint64u (2014/03/07)
1724    o verification/MLAdjust:
1725      - rename secondary test suffix:
1726         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
1727         0.leithD -> AhFlxF  + switch to flux-form
1728         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
1729         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
1730    o pkg/mom_vecinv:
1731      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
1732        to be before mom_calc_visc.F)
1733      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
1734      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
1735        this is simpler for the adjoint and for diagnostics.
1736    o model/src + pkg/momentum:
1737      - add input files for  2-D additional Western and Southern cell-edge wall
1738         (e.g., to add "thin-wall" where it is =1).
1739      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
1740        using 2nd hFacZ that is computed from initial (fix domain) hFac
1741      - known limitations of thin wall implementation: not yet coded for sigma
1742        coords; not working with CD-scheme neither.
1743    o pkg/seaice:
1744      - rename recently introduced parameters from (wrong name) AB to
1745        BDF (backward difference time discretisation)
1746      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
1747    o tools/adjoint_options:
1748      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
1749    
1750    checkpoint64t (2014/02/01)
1751    o pkg/ecco
1752      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
1753        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
1754      - replace hard-coded record number and period which only work for monthly
1755        with read-in runtime param that works for other periods (month,day,year)
1756    o pkg/thsice
1757      - corrected store directive fixes thsice adjoint gradient checks
1758    o genmake2 & testreport:
1759      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
1760        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
1761        Update testreport accordingly. No need to set "export OPENAD=true"
1762        in adjoint_options/adjoint_oad anymore (will be removed later).
1763    o pkg/shelfice:
1764      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
1765        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
1766        so that surface forcing applies to k=kSurf if using pkg/shelfice.
1767    o pkg/ctrl, pkg/grdchk, pkg/ecco:
1768      - Changes to make GENARR more modular (i.e. invisible if not used)
1769    o model/src/temp_integrate.F and salt_integrate.F
1770      - re-include store directives that were removed on Dec 27th.
1771    o model/src/external_forcing_surf.F
1772      - add storage directives for EmPmR and PmEpR to avoid recomputation of
1773        seaice_model in the adjoint that is problematic when seaice_model is
1774        turned off in the adjoint. The resolved issue dated back to July when
1775        EXTERNAL_FORCING_SURF call was moved.
1776        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
1777    o pkg/exf/exf_check.F
1778      - fix a small bug again (originally found by Wentao Liu, now found again)
1779      - streamline error output
1780    o pkg/streamice and aim_v23:
1781      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
1782        Apple's /usr/bin/cpp knows what to do:
1783        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
1784        Target: x86_64-apple-darwin13.0.0
1785    
1786    checkpoint64s (2014/01/05)
1787    o tools/adjoint_options:
1788      - switch to fastopt.net TAF server (instead of default fastopt.de) for
1789        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
1790    o model/src:
1791      - remove some unnecessary TAF storage directives in forward_step.F and
1792        in dynamics.F (note: not always removed by TAF, e.g., double storage
1793        of kappaRU,kappaRV in former version of dynamics.F).
1794    o model/src & pkg/ptracers:
1795      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
1796        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
1797        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
1798      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
1799      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
1800      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
1801    o useSingleCpuInput separates single-CPU input from single-CPU output;
1802        for now only implemented for in exf_interp_read.F
1803    o verification/advect_xy:
1804      - fix missing EXCH call in local version of ini_salt.F and update output.
1805    o momentum diagnostics:
1806      - fix which deltaT is used in Total-Tendency diagnostics.
1807      - fix typo in diagnostics for momentum tendency from AB.
1808    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
1809        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
1810    
1811    checkpoint64r (2013/12/08)
1812    o verification/*/results:
1813      - Update reference output of experiments that were passing with just 13 digits
1814         (make it easier to detect future changes in results)
1815    o model/src & pkg/ptracers:
1816      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
1817        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
1818        to inside ptracers_integrate.F ; remove ptracers_advection.F
1819    o coupling interface pkgs:
1820        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
1821      - change the config check to test the agreement of Ocean Depth
1822        with ATM land/sea mask (instead of ATM orography);
1823      - send to coupler the number of coupler time-steps to do for this run:
1824        this allows to check for consistency and don't need anymore to be
1825        specified in parameter file "data";
1826      in coupler:
1827      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
1828      - improve report to log-file of config setting (pass log-file unit to few S/R)
1829    o pkg/compon_communic:
1830      - add coupling send/receive for non-tiled integer vector;
1831      - add S/R to check and stop if any proc has an error (similar to
1832        eesupp/src/stop_if_error.F but single thread and across Comm_World).
1833    o pkg/exch2:
1834      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
1835        through list of all tiles my proc owns.
1836    o model/src:
1837      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
1838        from rTrans) to simplify dependencies (no need to store rTrans anymore in
1839        calling S/R); this affects AD results at machine truncation level:
1840        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
1841        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
1842    o tools/build_options:
1843      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
1844    o coupling interface pkgs:
1845        [compon_communic, atm_compon_interf & ocn_compon_interf]
1846      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
1847        to each S/R that needs it; remove un-used variables.
1848      - change component tile registration (cpl_register.F in both compon_interf
1849        and mitcomponent_tile_register.F) to pass the full list of tiles
1850        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
1851      - with pkg/exch2: adopt the same convention used for I/O to define mapping
1852        towards coupler global array (unless W2_useE2ioLayOut=F):
1853         a) can now use different tiling between atm & ocn comp.
1854         b) no needs to modify the run-Off map when changing tiling (was needed
1855            even if using the same tiling between atm & ocn).
1856         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
1857            full land tiles); not yet tested.
1858      - check for valid mapping from comp. tile to coupler global array
1859      - improve report of tile registration results to log file.
1860    o pkg/exch2:
1861      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
1862        tile-registration (CPL_REGISTER);
1863      - activate (un-comment) definition and setting of "W2_tileIndex" list to
1864        store the local bi,bj indices of each tile;
1865      - also print bi,bj in local report to log file;
1866      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
1867        Jun 2009 modif of pkg/exch2).
1868    o testing on baudelaire:
1869      - run 2 tests at a time: no significant slow down (since enough cpu) and
1870        get the full set of test done earlier
1871      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
1872    o model/src/thermodynamics.F and routines called from it:
1873      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
1874        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
1875        velocity (outp) by adding bolus velocity.
1876      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
1877        mass transport from velocity + lateral grid cell area
1878      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
1879      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
1880     in thermodynamics.F
1881      - remove k from thermodynamics.F and move it to temp_integrate.F
1882        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
1883        loop).
1884      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
1885        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
1886        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
1887        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
1888      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
1889        global_ocean.90x40x15, tutorial_global_oce_biogeo and
1890        tutorial_tracer_adjsens (+ TLM output).
1891    o tools/OAD_support and (verification/*/) code_oad:
1892      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
1893        module conversion ; remove unneeded CPP_EEOPTIONS.h.
1894      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
1895        version (closer to model/inc/CPP_OPTIONS.h).
1896    o model/src:
1897      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
1898        retired list of parameters (routine FREEZE has been replace by surface
1899        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
1900    o pkg/gmredi:
1901      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
1902        velocity (same scheme but affects machine truncation) for GM_AdvForm.
1903      - update output of FWD experiments: front_relax.bvp,
1904        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
1905    
1906    checkpoint64q (2013/11/17)
1907    o verification:
1908      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
1909        tutorial_global_oce_biogeo and global_ocean.90x40x15.
1910      - generate new output (growth & melt) for seaice_itd experiment after
1911        updating the input pickup_seaice files (previously wrong).
1912    o pkg/cost:
1913      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
1914        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
1915        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
1916          cannot be applied to var in common block).
1917        o allows to get results independent of tile-per-proc setting (if using
1918          slower GLOBAL_SUM_SEND_RECV option).
1919      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
1920        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
1921        forward gradients: update output).
1922      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
1923        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
1924    o pkg/mom_common:
1925      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
1926        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
1927        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
1928        ensure that all field value that are used are set.
1929    o tutorial_deep_convection (smag3d):
1930      - add missing scaling in mom_calc_smag_3d.F;
1931      - set smag3D_coeff in input.smag3d such that results do not change.
1932    o pkg/dic:
1933      - change dic_cost.F to compute cost on each tile first and then apply
1934        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
1935        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
1936      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
1937    o eesupp/src & pkg/mdsio:
1938      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
1939        (from pkg/mdsio) since they are no longer used for tape IO.
1940      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
1941        (+ keep a copy in pkg/atm_ocn_coupler).
1942    o verification/isomip:
1943      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
1944    o tools/build_options:
1945      - optfile linux_amd64_ifort11, fast (no ieee) case:
1946        to get a working restart for all experiments, add "-fp-model source"
1947        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
1948    
1949    checkpoint64p (2013/10/20)
1950    o pkg/autodiff:
1951      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
1952        criteria, return to simple (default) tape IO format.
1953    o pkg/mdsio (+ eesupp/src):
1954      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
1955        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
1956      - fix globalFile and singleCpuIO options using simpler global mapping.
1957      - new pairs of scatter/gather vector S/R (one for each type, generated from
1958        template) corresponding to simpler global mapping.
1959      - adread_write.F: switch to new S/R (but leave old calls commented) and write
1960        to globalFile when parameter globalFiles is set to True.
1961      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
1962    o pkg/autodiff:
1963      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
1964        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
1965        missing, just add a STOP if array type do not match.
1966    o pkg/exf:
1967      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
1968         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
1969         and rename array obsSIce to exf_iceFraction.
1970    o tutorial_deep_convection:
1971      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
1972        for now all in this exp. code dir.
1973      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
1974        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
1975    o eesupp/src:
1976      - added SINGLE_DISK_IO option because reading of parameter files on
1977        very large number of processors did not work with existing set-up
1978    
1979    checkpoint64o (2013/09/25)
1980    o pkg/atm_phys & atm_compon_interf:
1981      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
1982    o tools/build_options:
1983      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
1984        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
1985        remove CPP setting (was identical to genmake2 default).
1986    o pkg/gmredi & model/src: Some updating and work done on the residual model.
1987      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
1988      - fixed up the calculation of the eddy stress and how it is added to the
1989        external forcing via taueddy_external_forcing.F
1990      - at the moment, it is very experimental and only works with the variable eddy
1991        diffusivity calculated in gmredi_k3d.F
1992    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
1993        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
1994    o testreport (& tools/do_tst_2+2):
1995      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
1996    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
1997      - remove CPP='cpp -traditional -P' (this is genmake2 default)
1998      - add switch (for big setups) to use 'medium' memory-model (but leave it
1999        commented out for now). Note: needed with FC 19 to compile big setups.
2000    o pkg/atm_compon_interf:
2001      - regroup per field origin (model & pkgs) the coupling storage routines
2002         (which accumalate in time each coupling field)
2003      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
2004        update accordingly + simplify aim_do_physics.F
2005    
2006    checkpoint64n (2013/08/26)
2007    o pkg/bbl:
2008      - update formulation to reduce dispersion of tracer properties in bbl
2009      - replaced horizontal and vertical transport parameters with velocities
2010      - changes results for verification/global_with_exf.yearly
2011    o verification/halfpipe_streamice:
2012      - change to matrix construction; update both Fwd & AD output.
2013    o verification/tutorial_tracer_adjsens:
2014      - OpenAD test: switch to vector-invariant momentum since fluxform with
2015        rStar causes problems with OpenAD; update output.
2016    o tools:
2017      - genmake2: define a common prefix for all temp-file names ; move them
2018        to local /tmp disk (but would be easy to move them back);
2019      - xmakedepend: apply the same switch for temp-files.
2020    o pkg/offline:
2021      - changes for use with rStar (NLFS): assume that we continue to provide
2022        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
2023        output files) and apply r* scaling at each time-step (function of the time
2024        varying Eta field); use normal pickup files (needed for restart with NLFS).
2025    o adjoint with OpenAD:
2026      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
2027        package openad.  This package has to be compiled for all runs with OpenAD
2028        instead of specifying code_oad_all as a modification directory.
2029      - link the fortran templates from tools/OAD_support to the build directory
2030        for preprocessing to avoid conflicts between different setups compiled
2031        simultaneously and simplify cleanup.
2032    o pkg/exf:
2033      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
2034        main model or other pkgs are exchanged in EXF_MAPFIELDS).
2035    o model/src:
2036      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
2037        (similar to do_fields_blocking_exchanges.F).
2038    o tools/genmake2:
2039      - remove TAF output src code just before calling staf (when not doing a fresh
2040        built, will stop if things go wrong with staf).
2041      - fix target "adobj" (left from TAF version-2 transition)
2042    o pkg/diagnostics:
2043      - add a parameter to track the status of pkg/diagnostics activation;
2044        this replace/extend the use of logical param "settingDiags" (to check
2045        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
2046        New S/R to print error message and stop when pkgStatus is not right.
2047      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
2048    
2049    checkpoint64m (2013/08/13)
2050    o model/inc:
2051      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
2052        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
2053    o pkg/kpp & aim_v23:
2054      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
2055    o pkg/seaice:
2056      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
2057        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
2058      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
2059    o eesupp/src:
2060      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
2061        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
2062    o switch to TAF version-2:
2063      - add flow directives to "freeze" naming convention for ad-routines that
2064        are used in I/O routines of adjoint state and associated common blocks
2065        that are used in adcommon.h (backward compatible with version-1)
2066      - update all ad-optfiles (in tools/adjoint_options + few local to some
2067        verification exp) to switch to latest TAF version (currently 2.5.5);
2068        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
2069        out except for diva).
2070      - the major change with TAF version-2 is that both the differentiated
2071        routines and the forward routines (new) are returned as part of the TAF
2072        output source code. Update genmake2 accordingly.
2073      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
2074        with version-2 when compared to TLM or FWD gradient); other experiments
2075        output show minor changes (machine truncation level); update the few AD &
2076        TLM output with 12 matching digits only (some prior to version-2 switch).
2077    
2078    checkpoint64l (2013/08/05)
2079    o model/src:
2080      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
2081      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
2082        when using TAF but only if using OpenAD.
2083    o pkg/mom_common+fluxform+vecinv:
2084      - always set horiz. viscosity arrays to background value before calling
2085        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
2086        only when using variable horiz. viscosity (useVariableVisc=T);
2087      - simplify mom_vecinv.F (only 1 block for momViscosity).
2088    o pkg/mom_common: variable horiz. viscosity in NH code
2089      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
2090        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
2091      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
2092        useBiharmonicVisc & useVariableVisc.
2093      - fix old bug (already in 1rst implementation of variable horizontal viscosity
2094        in calc_gw.F, version 1.27, 2006/06/20):
2095        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
2096        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
2097      - change background horiz viscosity in vertical momentum (gW) to always be
2098        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
2099        any type of variable viscosity, e.g., viscAh/4Grid)
2100      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
2101        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
2102        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
2103        default viscAh,viscA4 is zero).
2104    o model/src:
2105      - extend length of drC & recip_drC from Nr to Nr+1.
2106    o Divided Adjoint (DIVA) with MPI:
2107      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
2108      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
2109        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
2110    
2111    checkpoint64k (2013/07/23)
2112    o tools/OAD_support:
2113      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
2114        and remove it from genmake2.
2115    o tools/build_options:
2116      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
2117        MPI_HEADER_FILES list (let genmake2 find the missing headers)
2118    o verification/halfpipe_streamice:
2119      - change to driving stress formulation; update both Fwd & AD output.
2120    o tools/genmake2 and Divided Adjoint with MPI:
2121      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
2122      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
2123      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
2124        Makefile, which is set by genmake2, and check which mpi-headers are needed.
2125        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
2126      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
2127    o testreport:
2128      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
2129        perform additional runs (number of additional runs is "add_DIVA_runs" taken
2130        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
2131    o verification/lab_sea (AD test):
2132      - change to test Divided Adjoint Run in this set-up (both standard AD test
2133        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
2134    o pkg atm_ & ocn_compon_interf:
2135      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
2136        staggerTimeStep implementation) and disable (retired) corresponding
2137        parameter.
2138    o pkg/offline:
2139      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
2140      - add S/R OFFLINE_CHECK to print offline parameter summary
2141        and stop if loading a file that is not used;
2142      - enable to calculate GMRedi tensor, KPP mixing and convective index
2143        when the corresponding file(s) is/are not specified (but pkg is used).
2144      - comment out resetting of monitorFreq (to endTime) since it still useful
2145        for monitoring CFL numbers and checking offline fields.
2146    o OpenAD:
2147      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
2148        smaller standard output) and generate new (smaller) output (on baudelaire
2149        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
2150    o model/src:
2151      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
2152        (where external_forcing_adjust was called) and change list of arguments;
2153      - merge external_forcing_adjust.F into external_forcing_surf.F
2154      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
2155        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
2156        previously in file "balance_relax.F", now removed); remove corresponding
2157        arrays in FFIELDS.h.
2158      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
2159        a hack for getting back surfaceForcingS (loaded from file) when using
2160        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
2161      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
2162        (was getting only 11 digits for AD-grad, due to different truncation
2163         error in AD code).
2164    
2165    checkpoint64j (2013/07/04)
2166    o pkg/offline:
2167      - to enable the use of other features with pkg offline (e.g., obcs),
2168        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
2169      - comment out "allowFreezing" (now active) in 2 offline testing exp.
2170  o pkg/exf ALLOW_RUNOFTEMP  o pkg/exf ALLOW_RUNOFTEMP
2171    - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL    - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
2172    - added RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice    - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
2173    - changes verification/global_ocean.cs32x15/results/output.seaice.txt    - changes verification/global_ocean.cs32x15/results/output.seaice.txt
2174  o pkg/atm_phys:  o pkg/atm_phys:
2175    - allows to add some damping on uVel,vVel (strength only function of k).    - allows to add some damping on uVel,vVel (strength only function of k).

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