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revision 1.125 by jmc, Mon Jan 27 21:42:19 2003 UTC revision 1.656 by heimbach, Sat May 6 18:14:15 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o SEAICE_CGRID adjoint done
8    o R_STAR adjoint implemented.
9      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
10      * need to sort out init. of h0facc, etc.
11    o Make pkg/profile fully independent of ecco,cost, etc. stuff
12      to be able to use it in pure forward.
13    
14    checkpoint58d_post
15    o upgrade simple test-experiment to tutorial example:
16     step.1: duplicate the experiment and (step.2) will remove the old copy.
17      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
18      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
19      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
20      tutorial_global_oce_biogeo    <- copy of dic_example
21      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
22      tutorial_plume_on_slope       <- copy of plume_on_slope
23      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
24      tutorial_global_oce_optim     <- empty for now (David ?)
25      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
26     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
27    o correct a sign problem in cost_scat.F
28    o obcs and ptracers: fix boundary conditions for advections schemes
29      with larger stencil
30    o thsice adjoint: start
31    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
32      completeness
33    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
34      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
35    o ptracers adjoint:
36      * avoid extensive recomputatations
37      * fix missing re-init. of gptr (missed by TAF)
38    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
39      me to turn off the excessive output to STDOUT that this package produces
40    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
41      and add those terms in Vector-Invariant formulation.
42    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
43      if the control period (xx_hfluxperiod etc) is 0
44    o in profiles pkg, clean routines and fix details
45    o in ecco pkg, reading ssh data:
46      fix problem in case the model does not start at iter0=0
47    o fix mnc-pickup/restart for ptracers
48    o new package prifiles:
49      code to compute profile-based cost by Gael Forget
50      (modifs in ecco, ctrl, autodiff)
51    o Benign bug fix in initialization (spotted by M. Mazloff) of
52      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
53    
54    checkpoint58c_post
55    o adjoint: finish NLFS adjoint and provide reference output in
56      verification/global_ocean.90x40x15/results_ad_nlfs
57    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
58      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
59      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
60      with SEAICE_CGRID defined.
61    o move calendarDumps from "data" to "data.cal" and clean-up the code
62      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
63    o add useEXF & useCAL flags (for now, set in hard-coded way)
64    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
65      (were missing in NH mode, and wrong in quasihydrostatic mode).
66      waiting for Chris updated version of calc_gw to add those CALLs.
67    o fix bug in quasihydrostatic S/R ;
68      add a test for this option: global_ocean.90x40x15.qshyd
69    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
70      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
71    o add on/off flag useOffLine for package OFFLINE
72    o seaice:
73      - modify advection so that it works also on the C-grid
74      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
75        problem in multi-tile runs with C-grid
76      - add flags for clipping ice velocities and/or masking solver forcing
77      - fix drag (ocean on ice) formulation and a bug that caused noise in the
78        C-grid solver
79      - added a few comments to seaice_diffusion.F
80      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
81        are now exclusive)
82      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
83        required re-ordering the code a little:
84       + make DAIRN global variable (defined in SEAICE)
85       + move computation of the viscosities eta and zeta into a new separate
86         routine (because I need to recompute them in seaice_ocean_stress.F)
87    
88    checkpoint58b_post
89    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
90      update output.txt of exp. aim.5l_cs.thSI
91    o various mnc cleanups and improvements:
92      + shrink lookup tables by factor of ~4
93      + better error reporting when running out of lookup space
94      + able to handle longer path/file names (up to 500 chars)
95    o adjoint:
96      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
97      - TBD: "hidden" mom_vecinv recomp. in dynamics
98    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
99     (allow to differentiate between forcing components using new integer flags:
100      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
101     and add new flag to put Dissipation tendency out of Adams-Bashforth.
102    o ecco
103      - enable trend removal from SSH anomaly obs.
104    o adjoint
105      - a fix for PmEpR when #undef EXACT_CONSERV
106      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
107      - try to fix "hidden" recomp. in forward_step for NLFS
108        (NLFS seems broken sometimes after I checked it in)
109    o seaice:
110     - add c-grid version of the dynamic solver:
111       + three new routines that are the c-grid substitute lsr, dynsolver
112         and ostres
113       + put a few fields that were local to dynsolver into global common
114         blocks, so that I can move the computation of stresses etc into
115         seaice_lsr (saves coding but may break the adjoint).
116     - replace more hardwired parameters by runtime parameters
117     - add ice masks that mask the rhs of the implicit solvers where there
118       is no ice (commented out in seaice_dynsolver, because i am not sure
119       if this works properly), eventually this should replace the clipping
120       of ice velocities in seaice_dynsolver to +/-40cm/s.
121    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
122      include it only where its needed
123    o move balancing of fluxes before the call of external_forcing_surf
124    o seaice:
125      - correct units of turning angles (now they are really in degrees)
126      - move computation of GWATX/Y out of main routine into dynsolver
127      - initialize GWATX/Y in seaice_init
128    o Apply mask on Fresh-Water flux (needed for SSH forcing).
129      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
130    o seaice: add runtime flags for turning angles (default to zero)
131    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
132      and trend from exf forcing and ctrl control adjustments
133    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
134      (since checkpoint57x_post)
135    o change the default rotation period to 86164.s = the Earth rotation
136    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
137      and based on a reference stratification. Tested within hs94.cs-32x32x5.
138    o seaice advection: add code for choosing between the default (2nd order
139      central differences) and multiDim advection schemes provided by
140      pkg/generic_advdiff
141    o seaice:
142      - removed all references to SEAICE_GRID.h fields from
143        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
144        (cubed-sphere configuration will change a little)
145      - grid computations in seaice_init are obsolete now.
146      - cleaned up code a little so that is easier to read (hopefully).
147      - added new (better?) discretizations of default advection and diffusion
148        (turn on with SEAICEuseFluxForm)
149      - replace 1 in 3d global fields by kSurface in growth.F
150      
151    checkpoint58a_post
152    o seaice:
153      - bug fix in advect.F
154    o shelfice:
155      - separate shelfice load anomaly from pload (breaks with time
156        dependent forcing), => introduce constant field shelficeLoadAnomaly.
157        Its default is 0., but it may be computed more cleverly from (unknown)
158        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
159        done offline. A good approximation of the pressure load anomaly is
160        necessary to avoid large initial adjustment processes underneath
161        deep-reaching shelfice.
162      - small fix in ISOMIP shelfice_thermodynamics
163      - add more sophisticated thermodynamics of Hellmer (1989), this is
164        now the default
165      - give a few constants more intuitive names
166    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
167      if bulk formulae are used in long integration (especially EmPmR). Turn
168      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
169      if balancePrintMean, the imbalance that is substracted is printed to
170      STDOUT.
171    o fix bug (typo) in obcs_apply_eta.F
172    o add a new package shelfice which enables us to model the circulation
173      underneath shelf-ice with draughts of hundreds of meters.
174     - works
175     - to do: + include improved thermodynamics
176              + check whether kSurfC (from model/inc/SURFACE.h) can be used
177                instead of new field kTopC
178              + can we use topoFile, Ro_surf and existing code in ini_depth.F
179                instead of new field R_shelfIce and new code in ini_depth.F
180                and ini_mask_etc.F?
181              + adjust vertical mixing schemes?
182    o seaice pkg:
183     - add a cpp-flag to include a simple formula for a salinity dependent
184       freezing point of sea water at the surface
185     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
186       meridional stresses are now different (and hopefully correct)
187    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
188       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
189       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
190    o pkg/diagnostics: add options and parameters for regional-statistics
191       diagnostics ; define regions by reading a region-mask from a file
192       (might add other options later)
193    o pkg/bulk_force:
194     - add option and parameters to use AIM surface-flux formulae.
195     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
196       others forcing fields (defined in PARM05, parameter file "data") are loaded
197       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
198     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
199     - use the right EXCH call for uwind,vwind (to work on CS-grid).
200     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
201       and parameters (note: calcWindStress replaces .NOT.readwindstress).
202     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
203    
204    checkpoint58
205    o add "--embed-source" option to genmake2 which, when the supporting
206      tools can be compiled (as determined by genmake2) will turn on the
207      embed_files package which then embeds the entire MITgcm source code
208      (*.[fFhc] + Makefile) used for the build within the executable
209      - requested by CNH but off by default
210      - adds a paltry <9MB to the mitgcmuv executable in most cases
211      - only writes the output when useEMBEDSRC in eedata is true
212    o clean up 3-dim. relaxation codes:
213      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
214      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
215      * Thanks to Tom Haine for testing!
216    
217    checkpoint57z_post
218    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
219      affects output (@ truncation level) of exp. plume_on_slope ; updated.
220    o fix the pickup behavior for obcs in combination with ptracers
221    o fix a bug in ptracers_external_fields_load
222    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
223      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
224    o transfered surface NH pressure to eta field (if exactConserv).
225    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
226         and update lab_sea output.txt file.
227    o completing 3-dim. relaxation code: additional term
228         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
229      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
230      * At compile time, in "EXF_OPTIONS.h" set
231          #define  ALLOW_CLIMTEMP_RELAXATION
232          #define  ALLOW_CLIMSALT_RELAXATION
233      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
234          tauThetaClimRelax3Dim = 15552000.0,
235          tauSaltClimRelax3Dim  = 15552000.0,
236      * 3 cases:
237          1) Use a constant-in-time 3-dim. field
238          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
239          3) Real-time relax. to time-evolving prescribed field
240    o Adding Laplacian-type smoothness constraint on
241      initial and boundary (forcing) controls (ic, bc)
242      * enable at compile-time via
243        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
244      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
245      * Absolute scale somewhat unclear so far
246      * no area weighting was included since no other cost term does so far
247    
248    checkpoint57y_post
249    First step for a NLFS adjoint
250    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
251    o new init. routines for calc_r_star, calc_surf_dr
252    o still need to deal with ini_masks_etc
253    o testreport seemed happy
254    checkpoint57y_pre
255    
256    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
257    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
258    o add new offset feature to offline pkg (plus minor cleanup)
259    o cfc fixes for final year of integration
260    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
261      be in GCHEM_OPTIONS).
262    
263    checkpoint57x_post
264    o fix testreport Pb in multiple test experiment.
265    o cleanup our namelist syntax in verification:
266      - make it more F95 standards compliant (some work still needed)
267      - allows the vast majority of our tests to work with gfortran
268    o Non-Hydrostatic:
269     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
270     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
271    o Allow to apply AB on T,S rather than on AB(gT,gS):
272     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
273     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
274       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
275     - need a "clever" read_pickup to restart from the other AB formulation
276    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
277    o remove some unused variables (reduces number of compiler warnings)
278    o adjoint
279      * Disable useVariableViscosity for adjoint for time being
280        (there are a number of extensive recomputations)
281      * Initialize certain variables needed for adjoint
282    
283    checkpoint57w_post
284    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
285                 fix the singleCpuIO RS version of MDSWRITEFIELD
286       and add a WARNING if using globalFiles=T with multi-processors.
287    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
288      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
289    o tracer advection scheme:
290      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
291       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
292       was not very convenient).
293      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
294       (further tests needed for the implicit DST & Flux-Limiter schemes).
295    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
296      and sRef for convenience, handy, when you want to initialize
297      ptracers in a large domain with a constant non-zero value. Also,
298      untangle ptracers_init.F a little.
299    
300    checkpoint57v_post
301    o change dome exp. to use variable viscosity in side-drag terms.
302    o remove all the files from the cfc_offline test since they are now
303      incorporated into tutorial_cfc_offline which has been producing
304      identical results for a few days of testing
305    o add new parameter: sideDragFactor to enable half-slip-side BC
306      and change side-drag S/R to use viscosity from mom_calc_visc
307      (can switch back by setting sideDragFactor=0.); affects results at
308      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
309       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
310    o vorticity & strain are now computed without masking, to account for
311      no-slip-side BC in variable viscosity calculation ; mask is applied
312      anyway later on, before computing advection/coriolis terms.
313    o modify exp4 to test new obcs support for reading from external files
314      and for passive tracers
315    o fix behavior of ptracers_monitor when monitor output is written to a
316      netcdf-file; still not independent of monitor.F (writes in the same
317      file).
318    o change default value of tRef (put a uniform, meaningful value for ocean
319      & atmos) and initialize sRef (was missing, as Martin mentioned).
320    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
321      to be proportional to enstrophy dissipation length.  Thus,
322       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
323      This is now consistent with Smagorinsky and with the manual.
324    
325    checkpoint57u_post
326    o OBCS and PTRACERS: add open boundary support for passive tracers
327      - either use homogenous (pseudo) v.Neumann conditions or prescribe
328        OB-values from file; this is not different from the way theta and salinity
329        are treated
330      - however, Orlanski-radiation conditions are not supported, and the model
331        will stop if you use pTracers and Orlanski at the same time.
332      - beefed up the rountine obcs_external_fields_load: now only those open
333        boundary values are overwritten with values from files for which there
334        are really files, otherwise the OB-fields remain untouched. This makes
335        it possible to use different OBs at different ends of the domain (as
336        with EXF)
337    o reduce number of exch calls in shap_filt (s2).
338    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
339      truncation level) 4/5 MLAdjust test results (11&12 digits match).
340    
341    checkpoint57t_post
342    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
343    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
344      same truncation, independent of the face number: affects affects several
345      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
346    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
347      note that biharmonic viscosity + no-slip was not tested in any experiment.
348    o fix bug in non-linear free-surf side-drag ; generate new output for
349      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
350    o make mnc honor the writeBinaryPrec flag for most kinds of output
351    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
352    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
353      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
354    o add brackets in multi-terms sum to get same truncation, independent of
355      the face number (manage to get exactly same value of gU,gV at the cs-edge)
356      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
357    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
358      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
359      a maximum grid-scale Reynolds number.  Also, changes all length calculations
360      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
361      Suggested values of viscosity parameters found in mom_calc_visc.
362      Many new viscosity diagnostics available.
363    
364    checkpoint57s_post
365    o Add clearing-house for viscosity calculations, mom_calc_visc and
366      correct numerous bugs in LeithD and Smagorinsky discretizations.  
367      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
368      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
369      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
370      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
371      The Strain-Tension form is now called with useStrainTensonVisc=.true.
372      ViscAhStrain and viscAhTension are now retired.
373    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
374    o In response to JMC's bug report, genmake2 now ignores any soft-links
375      that it finds in the *current* directory when searching for files.
376      Soft-links found in any other source directories will still work as
377      they did before.
378    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
379      a C routine to unlimit the stack size
380    o mnc-ify pkg/aim snapshot vars
381    o mnc-ify pkg/land as requested by Daniel
382    o various changes to mnc including:
383      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
384      - output can now be grouped so that all files within a group
385          change the ITER portion of their names in lock-step together
386      - can now read ("global") PER-FACE (in addition to PER-TILE) files
387          and works with both EXCH1 and EXCH2 (but needs more testing)
388      - writing works for all verification test cases w/ g77 on Linux
389    
390    checkpoint57r_post
391    o make MNC variable initialization happen earlier
392    o add diagnostics for (almost) each term of the momentum Eq.
393    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
394    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
395    o remove MINIMAL_TAVE_OUTPUT option ;
396      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
397    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
398      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
399    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
400    o add time-dependent SST, SSS control
401    o cost terms in ecco/ modularized (new cost_generic.F)
402    o cost_averages routines are modularized (new cost_averagesgeneric.F)
403    o new infrastructure for seaice model vs. obs misfits in seaice/
404      * driver from the_main_loop.F is seaice_cost_driver.F
405      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
406      * gradient check in Exp. 6a of natl_box_adjoint/
407    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
408      (see README file)
409    
410    checkpoint57q_post
411    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
412    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
413      - bug was reported by Jean-Michel and Ian Fenty
414    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
415      update exp. cpl_aim+ocn output.
416    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
417      Needed for high-res. runs with large global files
418      to be able to limit tapelev size
419    o Changed some tests for adjoint:
420      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
421      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
422      * global_ocean.90x40x15/ back to default 3-level checkpointing
423    o Modifications to enable scripted COMMON to MODULE conversion
424      * verification/OpenAD/code/ has necessary scripts and description;
425      * converts, compiles and runs successfully;
426    
427    checkpoint57p_post
428    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
429    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
430      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
431    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
432    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
433      (was already the case for dissipation with mom_vecinv,
434       and also the case for grad.PhiHyd when staggered-timeStep)
435      This will allow to put dissipation out-off the AB time-stepping.
436     Unfortunately, affects truncation error. Update output of exp. that "fails"
437      (cg2d matching number) and leave the others for later: front_relax(10),
438      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
439      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
440    
441    checkpoint57o_post
442    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
443      (2) its ready to be documented during the 20050801 DocFest
444    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
445      for ideal_2D_oce and lab_sea on linux_ia32_g77
446    o set to #undef CTRL_SET_OLD_MAXCVARS_30
447      in global1x1_tot/code_seaice_adj to access indices 32, 33
448      (worth another tag)
449    
450    checkpoint57n_post
451    o adding precip control xx_precip 32
452    o adding swflux control xx_swflux 33
453    o Replacing 10 forcing penalty cost routines by 1 generic.
454    o Implementing partitioning in time-mean and variable adjustment
455      for atmos. state.
456    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
457    o in natl_box_adjoint:
458      * updated exp 1 to 10
459        (but does not have time-mean vs. variable split results yet)
460    o updated global1x1/*_seaice_adj/
461      to incorporate latest changes
462    o enable useSingleCpuIO for mdsio vector routines
463      (applies in particular to tapelev I/O)
464    o removed inefficient K-loop in all active_file*control*.F
465    
466    checkpoint57m_post
467    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
468      and advect_cs (use EXCH-2 and standard cs-32 grid files).
469    o pkg/exch2: filling of face-corner halo regions is optional
470      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
471    
472    checkpoint57l_post
473     tag before updating tutorials (pre-release-2)
474    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
475       for output and interpolation of input fields onto model grid)
476    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
477       Affects results of exp. rotating_tank ; update output.txt.
478    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
479          and taking the square quantity and/or using a fraction-weight field.
480    o fix aim_diagnostics_init.F mate numbers.
481    o add mnc output capability to diagnostics/diagstat and update
482      our cvsignore files for the ACSII output generated
483    
484    checkpoint57k_post
485    o lab_sea now uses diagnostics package and provides a suite of
486      new EXF diagnostics output.
487    
488    checkpoint57j_post
489    o exf
490      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
491        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
492        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
493      * extended diagnostics output
494        - now includes all EXF variables
495        - hs, hl moved to common block
496        - separate S/R for diagnostics, called after ctrl vector is added
497        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
498        - EXFqnet contains true Qnet (i.e. includes qsw)
499      * updated verif. lab_sea, global_with_exf
500      * Rearranging hflux (exf_mapfields -> exf_getforcing)
501        to ensure that diagnostics sees a true EXFqnet
502    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
503    o diagnostics pkg: change pointers so that 1 diagnostic can be used
504      several times with different frequencies.
505    o mnc-ify the thsice package as requested by Daniel Enderton
506      - the monitor--MNC output needs work
507      - many attributes need to be added (most are currently blank)
508    o mnc-ify theaim_v23 package as requested by Daniel Enderton
509      - many attributes need to be added (most are currently blank)
510    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
511    o add Sadourny like discretization to the 4th.O vorticity advection scheme
512    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
513      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
514         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
515    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
516     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
517    
518    checkpoint57i_post
519    o Diagnostics package was changed: diagnostic allocation is now deactivated
520      by setting an empty file name in the namelist (used to be by setting 0 frequency)
521    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
522      add 1rst Order upwind vertical Shear.
523    o add a quick fix for A/B checkpointing in OFFLINE mode
524    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
525      end-run around the C/Fortran linking horror in eesup/src/timers.F
526    o added pkg/runclock: allows user to terminate run based on wall clock
527    o added non-hydrostatic scaling parameter: nh_am2
528    o pkg/my82: futile attempt to make results compiler-independent by adding
529      some "_d 0", etc. no effect.
530    o for mnc output, fill the 'T' coordinate var with myTime and create a
531      separate 'iter' variable for iteration count
532    o pkg/diagnostics:
533      add new capability: output of Global/Regional & per-level statistics ;
534      tested against monitor output (including land & thSIce) on various exp.
535    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
536    
537    checkpoint57h_done
538      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
539      data.diagnostics, data.gchem, data.ptracers) is done.
540    
541    o pkg/diagnostics: prepare for Global/Regional statistics.
542      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
543    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
544      and rename it: DIFFERENT_MULTIPLE
545    
546    checkpoint57h_post
547    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
548    o pkg/diagnostics: change output frequency, now in seconds (instead
549      of Nb of iterations). This requires to change data.diagnostics.
550    checkpoint57h_pre
551    
552    o in mnc, let the user create the output dir if both mnc_outdir_date
553      and mnc_outdir_num are false
554    o add fflags() to pkg/diagnostics which allows one to specify, on a
555      per-file basis, the file precision [default behavior is unchanged]
556    o added diagnostics to pkg/kpp, including computation of mixed layer
557      depth based on a temperature/density criterion
558    o updated verification/natl_box to test the new pkg/kpp diagnostics
559    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
560    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
561    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
562      not mnc -- this mistake was found by JMC and is now corrected
563    
564    checkpoint57g_post
565    o add Adams-Bashforth 3rd Order time stepping:
566      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
567      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
568    checkpoint57g_pre
569    
570    o make lambda[Theta,Salt]ClimRelax spatially varying
571      (default remains spatially uniform constant based on tau)
572    o added new control variables
573      * init. uVel, vVel, etanN
574      * lambda[Theta,Salt]ClimRelax
575    o separate masks used for ctrl_pack/unpack 'from write_grid' output
576      (suggested by G. Forget)
577    
578    checkpoint57f_post
579    o add parameter "baseTime" = model base time = time at iteration zero
580      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
581      account for baseTime shift
582    o move Coriolis arrays from PARAMS.h to GRID.h
583    checkpoint57f_pre
584    
585    o mnc-ifying the seaice package
586    o introduced an alternative length scale calculation for use in the limiting
587      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
588    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
589    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
590      as well as grad(vort3).  Made it compatible with both approximate form
591      for the cubed sphere and full form of these gradients.  Added flag
592      useFullLeith to select between approximate and full form.  
593    o add "d0" in getcon.F to reduce differences between compilers/platforms
594      update output.txt of exp. fizhi-gridalt-hs
595    o change port_rand funtion to allow to set the seed.
596    o fix obscure MNC bug involving conversion between reals and integers
597      - it caused no problems with certain (eg. gcc, ifc) compilers but the
598        new version is now more standards-compliant
599    o adjoint-related modifications
600      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
601      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
602      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
603    
604    checkpoint57e_post
605    o Adding eddy stress controls a la Ferreira et al.
606    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
607    
608    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
609      update output.txt of exp. fizhi-gridalt-hs
610    o add more "Z" dimensions and associated coordinate vars to MNC
611    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
612    o parameter calendarDumps: when set, approximate months (30-31 days) and years
613      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
614      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
615      months and years.  Requires pkg/cal.
616    o diagnostics: add pickup functionality
617      - off by default for backwards compatibility
618      - current version only uses MDSIO -- MNC will be added
619    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
620    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
621    
622    checkpoint57d_post
623    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
624    o modify verification/ideal_2D_oce so that it tests the creation of mnc
625      output from the diagnostics package
626    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
627    o make genmake2 more portable by using ".$FS" instead of ".f" for more
628      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
629    o add coordinate variables to the MNC output from the diagnostics package
630    o change MNC-flags default value: true when useMNC=TRUE
631    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
632      the ability (off by default) to read the grid information using MNC
633    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
634    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
635    o do snap-shot diagnostics at the middle of the time-interval (instead of
636      at the end).
637    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
638      new test for AIM with thSIce + slab-ocean
639    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
640    o move state variable diagnostics to the beginning of the time step ;
641      (note: still needs some work specially for snap-shot diagnostics)
642      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
643    
644    checkpoint57c_post
645    o Change testing option (-ieee) to get closer agreement between g77 & ifort
646    o generate new output.txt files on faulks with g77 & the new -ieee option
647    checkpoint57c_pre
648    
649    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
650      update output.txt of exp. global_ocean.90x40x15
651    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
652      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
653    o add saltFlux(+File) forcing capability with periodicExternalForcing
654    o allow to use pkg diagnostics for GM-Redi & ThSIce output
655    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
656    o improvements for the MNC output from DIAGNOSTICS:
657      - correct handling of the unlimitied dimension
658      - all dims now have associated coordinate variables
659      - variables located at U, V, and Corner ("Z") points are now written
660        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
661        *all* data points are output
662    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
663    o added pkg/seaice/seaice_monitor.F
664    o mdsio_readfield.F can now read files visible only to master MPI process.
665    o pkg/seaice: some test code for ice-modified ocean stress
666    o exf_getffields interpolation defaults to bilinear for all scalar forcing
667      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
668      spurious negative numbers for precipitation and humidity.  Will cause
669      some small numerical differences for integrations using pkg/exf/exf_interp.F.
670    o pkg/ctrl/
671      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
672        May be enabled via doPackDiag
673      *  introduce z-scaling of
674         + gradient (doZscalePack) and
675         + control (doZscaleUnpack)
676    o pkg/mdsio/
677      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
678      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
679    
680    checkpoint57b_post
681    o simplify options in diagnostics_fill arguments (remove weird combinations)
682    o fix MNC coordinate variables so that they now contain per-face index
683      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
684      general, EXCH2 grids are only aligned to a "local" coordinate system
685    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
686    o Implement instantaneous output within pkg diagnostics:
687      setting a negative frequency in data.diagnostics produces
688     "snap-shot" output (as opposed to time-average if freq > 0)
689    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
690      NOTE: change ptracer diagnostics name: use 2 characters to work with
691            more than 9 tracers. Add also diagnostics of advect & diffus flux.
692    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
693      becomes the coordinate variable for the 'T' dimension
694    o add CF-style coordinate variables to MNC
695      - just a first cut:  numbers are meaningless on the cubesphere and
696        missing along the T axis but otherwise it works!
697    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
698    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
699    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
700      this is based directly on what the model compute, so that the content of
701      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
702    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
703    o clean up build options files for SunOS, in particular
704      - remove -traditional from xmakedepend
705      - change -xarch=v9 to -xarch=native for f77
706      - restore use of make (not gmake)
707      - add CC=gcc if using g77
708    o changes per discussion of AM, JMC, & EH3 today:
709      - move redundant "grid" variables out of "state" -- in preparation of
710        creating proper CF-style coordinate variables and in recognition
711        that any/all grid variables can be easily copied (eg. w/NCO) from
712        the grid files into any of the other NetCDF files
713      - *always* output grid variables with MDSIO (this will eventually be
714        changed)
715      - output MNC grid file if useMNC is true
716    o every instance of _END_MASTER() has been found and replaced with
717      _END_MASTER( myThid ) in order to satisfy certain picky Sun
718      preprocessors
719    o re-arrange diagnostics pkg initialisation:
720     - allow each package to extend the available diagnostics list
721     - add some checking and fix small problems (multi-threaded, ...)
722     - new S/R diagnostics_fill (replace fill_diagnostics):
723       look through the short list of active diag. (instead of the long list)
724       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
725    
726    checkpoint57a_post
727    o this set of changes restores TAMC compatibility
728      tested for global_ocean.90x40x15 adjoint on trough
729      (what a pain)
730    
731    checkpoint57a_pre
732    o some modifs in tools/build_options for sunos
733    o call ctrl_pack for ctrl at end for optimcycle=0
734    
735    checkpoint57
736    o add horizontal bi-harmonic viscosity for vertical velocity
737      - new parameter viscA4W (defaults to viscA4)
738      - affects only non-hydrostatic code
739      - to be done: no-slip lateral boundary conditions
740    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
741    o implement Implicit Vertical advection for pTracers
742    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
743      (implemented also for implicit vertical diffusion & advection)
744    o OBCS: extend application of tracer open boundary conditions
745      to a strip beyond the boundary of width Olx/Oly
746    o add call monitor to TAF set of required calls (flow directives)
747      and include in natl_box_adjoint
748    o untangle a few ifdefs related to cost, ctrl, autodiff
749      untangel a few ALLOW_ECCO_OPTIMIZATION
750    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
751      (theta2, salt2 in ecco_cost_weights)
752    
753    checkpoint56c_post
754    o OBCS as control variables
755      - update ctrl_ad_diff.list, obcs_ad_diff.list
756      - remove balance of obcs controls from default
757      - fix index bug nobcs in ctrl_init
758      - fix dummy fields filen in ctrl_pack
759      - add dummy weights for obcs
760    o lsopt: comment out fort.94 output
761    o optim:
762      - remove unnecessary header files
763      - adjusted namelists
764      - add xerbla.F to Makefile
765    o exf:
766      - multiple modifications of exf_check_range
767      - unit change in exf_init_runoff from [m/year] to [m/s]
768    o mdsio:
769      - i/o-vector change debugLevel from debLevA to debLevB
770    
771    checkpoint56b_post
772    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
773      is called from DO_THE_MODEL_IO
774      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
775      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
776      - clean up PTRACERS_WRITE_TIMEAVE a little
777    o add another verification experiment that tests both the cfc-pkg and
778      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
779      reactive tendencies treated inline with regular timestepping
780    o testreport previously did a lousy job of comparing small numbers, so
781      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
782      implemented in the little c-progam tmp_cmpnum.c which is embedded in
783      testreport.
784    o ptracers_monitor: bug fix for MPI
785    
786    checkpoint56a_post
787    o GCHEM: finish reorganizating the package
788      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
789        (introduces another 3D-array for each passive tracer, but only if
790        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
791        gchemTendency is not needed because the timestep is done separately)
792      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
793      - GCHEM is now---more or less cleanly---separate from PTRACERS
794      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
795        so clear to me how that should be done in a general way.
796    o CFC: improve formatting of output in CFC_ATMOS
797    o PTRACERS:
798      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
799        that ALL experiments with ptracers enable can be checked. This makes
800        GCHEM_MONITOR obsolete.
801      - include a runtime parameter PTRACERS_monitorFreq that defaults to
802        monitorFreq
803      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
804    o add PTRACERS (PTR0[1-5]) to testreport output
805    o exf_check_range:
806      * default changed to .TRUE.
807      * will check values for niter0 if debLevA, every timestep if debLevB
808      * STOP in exf_check_range if 'out of range'
809      * range chosen generous to allow for potential extema
810      TBD: a version with stricter range
811           permitted range would be runtime parameters
812    o GMredi:
813      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
814      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
815      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
816    o GCHEM:
817      - move call to GCHEM_FORCING_SEP, so that it is now called before
818        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
819      - introduced a useGCHEM runtime flag and applied it everywhere.
820      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
821        this flag is now only visible within GCHEM-pkg routines.
822      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
823        be replaced by a 3D array that is computed before thermodynamics; for
824        this, the tracer ID iTracer had to be included into the parameter list
825        of ptracers_forcing
826      - set up forward_step to call gchem_forcing, that will replace
827        gchem_forcing_int in ptracers_forcing
828      - cleaning up
829    o small cleaning of exch2: remove files that are also in eesupp/src
830    
831    checkpoint56
832    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
833    o mnc: cleanup "full" files--fixes out-of-memory problem
834    o ECCO-GODAE
835      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
836      * fully merged and updated from SIO code
837        windstress sign change affects
838        - exf_inscal_[u/v]stress
839        - sign of xx_tau[u/v] adjustments
840        - signs in cost_scat
841      * ctrl_get_gen: avoid update of tau[u/v] for first few days
842      * natl_box_adjoint updated and compressed
843      * 2-level checkpoint switch added
844        (tested in EXP. 1 of natl_box_adjoint)
845      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
846    o SVD
847      * first complete, non-hacked version for SVD calculations
848      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
849        performed via direct access files admtlm_vector.it????
850        (via ctrl_[un]pack)
851      * optimcycle is used for ARPACK iteration counter
852        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
853      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
854        and add linear transforms where necessary
855      * controls are initial/final SST, SSS (can be extended; need to check
856        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
857    o mdsio: filename info to both stderr, stdout
858    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
859      from sign change
860    
861    checkpoint55j_post
862    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
863      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
864    o add consistent build directories and .cvsignore files to verification
865    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
866    o make all subroutines 30 or less characters in length for certain older
867      compilers to work (a thorough search only turns up two routines in
868      pkg/ptracers)
869    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
870      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
871    
872    checkpoint55i_post
873    o change arrays for total vertical diffusivity (2.D if explicit,
874      3.D if implicit) ; each ptracer uses its own background value.
875    o added mnc/NetCDF output capability to ocn_compon_interf
876      - added bits to verification/cpl_aim+ocn so that it can run on
877        ITRDA and other clusters without the mpirun "-wd" option
878    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
879      configuration
880    o give MNC the ability to create additional files rather than
881      exceeding a specified file size limit "MNC_MAX_FILESIZE"
882      - the default is just less than 2GB which is a practical limit
883        on many systems
884    o Compute the non-local term using either KPP vertical diffusivity (=default)
885       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
886    
887    checkpoint55h_post
888    o add verification test "vermix"
889    o remove all the *_ioinc flags and replace with the single global
890      outputTypesInclusive flag
891    o allow to set a vertical profile of vertical diffusivity for T & S
892    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
893    o useMNC moved from data.mnc to data.pkg
894    
895    checkpoint55g_post
896    o Renaming carbon AD experiments to comply with testreport conventions
897    o Updating adjoint of Held-Suarez hs94.1x64x5
898    o Fixing directives for non-ECCO forward_step, after ECCO directives
899      have been fixed to avoid recomp. of do_oceanic_phys
900      Works well for global_ocean.90x40x15,
901      but recomp. issue remains for carbon
902    o Updating adjoint output for natl_box_adjoint after
903      pkg/ecco has been modified (see taga c55d_post)
904    
905    checkpoint55f_post
906    o rename to timeave_init_fixed
907    
908    checkpoint55e_post
909    o some delicate re-shuffle of store directives to avoid one
910      extra call of do_oceanic_physics
911      affects ecco_the_main_loop.F, do_oceanic_physics.F
912      checkpoint_lev1_directives.h
913    o NB: this may break global_ocean adjoint temporarily,
914      but it is clear how to fix it. Will do later, need this now.
915    
916    checkpoint55d_post
917    o ECCO specific cost function terms (up-to-date with 1x1 runs)
918    o ecco_cost_weights is modified to 1x1 runs
919    o modifs to allow observations to be read in as
920      single file or yearly files
921    o enable to read exf forcing fields as either
922      single file or yearly files (flag useExfYearlyFields)
923    checkpoint55d_pre
924    
925    o switch between 2-level and 3-level checkpointing
926    o add ability of MNC to write local and "partial" (eg. 2D slices where
927      the full 3D field is never actually stored) arrays to NetCDF files
928      with the correct (that is, the complete multi-dimensional) set of
929      array indicies
930      - used in mom_vecinv() to write the diagFreq output
931      - tested (demonstrated) in verification/aim.5l_cs
932    o further mnc-ification
933      - add verification/lab_sea to the list with mnc setups
934      - fix undefined mnc v-names in cd_code
935      - add kpp to mnc output (both snapshot and timeave)
936    o non-hydrostatic code
937      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
938        in calc_gw.F
939      - defaults to viscAh
940      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
941        friction or Leith) in non-hydrostatic mode, as long as there is
942        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
943    o pkg/cost
944      extend simple cost functions to treat time mean quantities
945      (T,U,V) via cost_accumulate_state from cost_tile
946    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
947        be 2 times larger than the minimum size the advection scheme requires.
948        now get a perfect conservation of salt in advect_cs test-exp (updated)
949    o GGL90 (Gaspar's TKE mixed layer)
950      - add horizontal diffusion of TKE, requires exchanges in
951        do_fields_blocking_exchanges, horizontal diffusivity is zero by
952        default. In OPA there is no horizontal diffusion of TKE but the
953        mixing coefficients are computed from a horizontal average of TKE of
954        6 points or so. I think that diffusion has a little more physical
955        justification.
956      - clean up ggl90_calc in the hope of reducing memory usage (this hope
957        was in vain)
958      - mask tke-variable in ggl90_init
959    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
960    o fix biharmonic diffusion on CS-grid.
961    o more obcs stuff
962      - added obcs_external_fields_load as an alternative to the EXF-pkg option
963        for reading boundary values. This routine is called from
964        obcs_prescribe_read
965      - updated obcs_check
966      - changed sponge layer relaxation parameter units for days to seconds
967      - turned off sponge layer by default
968      - changed argument list of OBCS_CALC to myTime+deltaTclock
969      - fixed about 35 bugs in obcs_external_fields_load
970    
971    checkpoint55c_post
972    o obcs stuff
973      - new runtime flags useOBCSprescribe, useOBCSbalance
974      - re-arranged obcs_calc
975      - moved exf_getobcs to obcs_prescibe_read
976        obcs_prescibe_read is called after ORLANSKI stuff
977        and independent of it (executable can contain all).
978      - updated obcs_check
979      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
980        These may be necessary only if tangential velocities are
981        prescribed at OB, not sure, needs testing.
982    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
983      which simplifies the calls and passes the ifc check-bounds test
984    
985    checkpoint55b_post
986    o add a 2D scalar, Z location, exchange_2 routine.
987    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
988      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
989      affects advect_cs results (for the wrong reason): update output.txt
990    o use a more standard discretization for biharmonic viscosity ;
991     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
992      affects results of dome set-up: update output.txt
993    o fix gad_advection.F (CubedSphere part), back to version 1.23
994    o fix bug in mom_vi_del2uv.F (CubedSphere part).
995    
996    checkpoint55a_post
997    o merged code to
998      * prescribe/read time-dependent open boundaries
999        (works in conjunction with exf, cal)
1000      * sponge layer code for open boundaries
1001      * each boundary N/S/E/W now has its own CPP option
1002        (healthy for the adjoint)
1003    
1004    checkpoint55
1005    o up-to-date adjoint of previous breaks
1006      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1007      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1008      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1009      - carbon: * remove tr1-related adjoint verification
1010                * add ptracer as control variable
1011    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1012      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1013    
1014    checkpoint54f_post
1015    o in verification/carbin/ remove experiment related to
1016      ALLOW_PASSIVE_TRACER (array tr1 etc)
1017      code_ad/ input_ad/ results_ad
1018    
1019    o add two new packages
1020      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1021        + subject to optimization (memory)
1022      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1023        + subject to reordering (many GOTOs in the original code)
1024        + so far opps is called for every (i,j) point, and then operates in
1025          the vertical; one may want to reorder the scheme in order operate in
1026          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1027          fields)
1028    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1029      - all verification tests compile and run with linux_ia32_g77
1030      - defaults are compatible with current input files--nothing
1031        should change if you were not previously using MNC
1032      - MNC output has been added in numerous places (eg. timeave)
1033        but there are still a few writes not yet do-able with MNC
1034        (this is in progress)
1035      - flags now allow for either/or/both use of MDSIO and MNC and
1036        documentation will soon follow
1037      - numerous small formatting cleanups for ProTeX
1038    o add version info (via BUILD_INFO.h) to MNC and stdout
1039    
1040    checkpoint54e_post
1041    o add two new packages
1042      - pp81 (Packanowski and Philander, 1981), Richardson number and
1043        stratification dependent mixing
1044      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1045      - these scheme operate in a similar manner as KPP (without ghat, of
1046        course), however there is only one diffusivity that is used for both
1047        temperature and salinity (and passive tracers)ç
1048    o add offline package
1049    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1050      provided by Stephanie Dutkiewicz
1051    o genmake2: add ability to search for C compilers and cleanup test output
1052      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1053    
1054    checkpoint54d_post
1055    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1056    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1057      leading to additional shift by 5 days each year of integration
1058       (i.e. leading to considerable offset over the years)
1059    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1060    o start with no AB and no initial filtering (staggerTimeStep):
1061      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1062    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1063      (external loading & cpl import/export stay in forward_step.F)
1064    o update coupling interface to work with new staggerTimeStep
1065    o change MDSIO ptracers_pickup.
1066    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1067    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1068    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1069    
1070    checkpoint54c_post
1071    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1072      this affects (truncation error) output.txt of test-exp:
1073       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1074    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1075    o change Qnet to always be the net heat flux, (+upward).
1076      affects (truncation error) output of natl_box exp.: updated
1077    o define the max number of passive tracers in PTRACERS_SIZE.h
1078    o start to test mnc routinely in exp0
1079    o add sea-ice loading (sIceLoad) as a new forcing field.
1080    
1081    checkpoint54b_post
1082    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1083       impressive on Altix and Opteron systems)
1084    o diagnostics can now write NetCDF files through the mnc package
1085    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1086    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1087    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1088      affects (truncation error) output of lab_sea & natl_box exp.: updated
1089    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1090    
1091    checkpoint54a_post
1092    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1093    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1094    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1095    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1096      + internal_wave (shift in writing cg2d_ini_res)
1097    checkpoint54a_pre
1098    
1099    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1100      - modified verification/lab_sea and natl_box_adjoint accordingly
1101    
1102    checkpoint54
1103    checkpoint53g_post
1104    o prepare splitting of thermodynamics: store convect.counter in common block
1105    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1106      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1107    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1108    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1109    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1110    o restore adjointability
1111    
1112    checkpoint53f_post
1113    o modifications that affect AIM experiment results (update output.txt):
1114      - no advection of S at top interface Nr (pkg/generic_advdiff)
1115      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1116    o AIM pkg:
1117      - include stability function into surf.Flux derivative relative to Tsurf
1118      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1119    
1120    checkpoint53e_post
1121    o merged cylindrical coord configuration
1122    o added rotating_tank experiment
1123    checkpoint53e_pre
1124    
1125    checkpoint53d_post
1126    o faulks upgraded: re-generate output.txt that have changed:
1127       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1128    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1129    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1130    o added Sadourny discretization of Coriolis
1131      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1132      - re-enabled use of omega3 (useAbsVorticity)
1133    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1134      vector-invariant equations
1135      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1136    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1137      hopefully without new bugs
1138      - still to do: biharmonic friction for non-hydrostatic w
1139    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1140    o regenerated output for global_ocean_ebm (using -ieee)
1141    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1142      of mom_common/
1143      - simple re-arrangement of instructions within computing loop
1144    checkpoint53d_pre
1145    
1146    checkpoint53c_post
1147    o new version of coupler for AIM+thSIce and Ocean models
1148     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1149     - land: change Evaporation of snow
1150     - aim with thSIce: fix bug in snow-precip.
1151    o changes to calc_gw.F
1152     - bug fix for w^2 term near the bottom boundary
1153     - (hopefully) improve the lateral slip boundary condtions for use with
1154        partial/looped cells
1155      - because the bug fix changes two verification experiments anyway (exp5
1156        and plume on slope), change the lateral boundary condition from half slip
1157        to the value of no_slip_sides
1158    o ebm package wasnt quite up to the parallel task. Fixed that.
1159    o Adjoint of EBM package + verification
1160      * TLM OK
1161      * ADM not sufficient accuracy yet (needs further testing)
1162    
1163    checkpoint53b_post
1164    o Commiting new energy balance model to repository
1165      * package is pkg/ebm
1166      * verif. is verification/global_ocean_ebm
1167      * references are in ebm_driver.F
1168    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1169    C        Global thermohaline circulation. Part I:
1170    C        Sensitivity to atmospheric moisture transport.
1171    C        J. Climate 12(1), 71-82
1172    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1173    C        Global thermohaline circulation. Part II:
1174    C        Sensitivity with interactive transport.
1175    C        J. Climate 12(1), 83-91
1176    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1177    C        Destabilization of the thermohaline circulation
1178    C        by atmospheric eddy transports.
1179    C        J. Climate 7(12), 1870-1882
1180    o Will need long integration testing.
1181    checkpoint53b_pre
1182    
1183    o created pkg/mom_common in preparation for variable viscosity code
1184    o renamed and split ini_mnc_io
1185    o pkg/land: only liquid water can diffuse or run-off
1186    o AIM using land: soil wetness availability account for snow
1187    o added printMapIncludesZeros to EEPARMS namelist
1188    
1189    checkpoint53a_post
1190    o restore TAMC compatiility for exf_constants.h
1191      (no usage of _d in .h)
1192    o Additional storing in KPP in an attempt to fix
1193      TAMC problem with adjoint of KPP code.
1194      (no success...)
1195      Identical code works fine with TAF.
1196    o Fixed verification/natl_box_adjoint experiments.
1197      Initial conditions for Experiments 4 and 5 are now
1198      set to "SEAICE_initialHEFF=0", which is more reasonable,
1199      and hence gives results closer to that of Experiment 2.
1200      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1201    
1202    checkpoint53
1203    o stable checkpoint with up to date adjoint
1204      TLM tests only run for 1st grdchk at the moment. Its unclear if
1205      this is a code problem or a problem with resetting code for g_
1206      variables that is being autogenerated wrong.
1207      Otherwise:
1208       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1209       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1210         are both still in chaos following their security messes.
1211    
1212    checkpoint52n_post
1213    o various build (mostly genmake2) changes including:
1214      - ability to build/run more easily within Cygwin and MacOS X
1215      - more complicated Makefiles with a stronger dependence on Gnu Make
1216    o pkg/seaice modifications
1217      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1218        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1219        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1220      - changed proxy for geostrophic velocity and updated
1221        verification/lab_sea/results/* accordingly
1222      - removed ADI dynamic solver from pkg/seaice
1223      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1224        they caused a segmentation fault under certain circumstances
1225      - removed unused field WATR
1226    o bug fix in exf-package:
1227      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1228         now reflect that.
1229    o small fixes in the cal-package:
1230      - set reference date to first of January for the 'model'-calendar
1231      - failing of cal_CheckDate in cal_FullDate now actually results in a
1232        warning
1233    o small modifications in exf-package to increase flexibility:
1234      - change climtempfreeze from a constant to a runtime parameter that
1235        is specified in data.exf_clim (default = -1.9)
1236      - introduce runtime parameter windstressmax (default = 2.0) that is
1237        specified in data.exf
1238    o fix in pkg/thsice:
1239      - update Evap (Tsf changes) to be consistent with Latent heat flux
1240      - maintain snow precipitation unchanged (even if Tsf >=0).
1241     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1242    
1243    checkpoint52m_post
1244    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1245      this does not change any of the results, because myIter=0 in swfrac always
1246      lead to jwtype=2 (the default anyway), but the call makes little sense
1247      as a default
1248    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1249    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1250      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1251    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1252    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1253    o extending useSingleCpuIO option to work with new exch2 I/O format
1254      - old-style, missing-tile I/O is still accessible by defining CPP
1255        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1256    o monitor package can write to NetCDF files and/or STDOUT
1257    o fix re-definition bug in MNC_GRID_INIT_ALL()
1258    o doc/api_reference added
1259      - a framework for building an API Reference Manual using all
1260        the "protex" comments embedded in the code
1261      - see pkg/generic_advdiff, pkg/mnc for examples
1262    o MNC:
1263      - make myThid the last argument for all subroutines
1264      - new default for the grid files: NO halos
1265      - add useMNC and other run-time flags
1266      - separate per-file-group handling of the unlimited dimension
1267      - early initialization of MNC w/ flags read at the eeboot stage
1268        and lookup tables set in initialize_fixed
1269      - write all MNC output to a freshly-created directory
1270    o thermodynamics sea-ice (thsice) is now tested with testreport.
1271    o test exp. advect_cs: use the standard cs32 grid ; update output.
1272    o Added functionality to grdchk:
1273      pick global i,j,k position (or nearest wet) where to perform check.
1274    
1275    checkpoint52l_post
1276    o new land formulation:
1277      a) use ground enthalpy as prognostic variable to ensure exact
1278         energy conservation.
1279      b) account for water temperature and for latent heat of freezing
1280         in all processes (rain, run-off, ground storage)
1281      c) compute surface and ground temperature implicitly.
1282    o aim_v23 modification for new land model:
1283      a) Treat separately land / ocean / sea-ice surface fluxes
1284         to allow implicit computation of land & sea-ice surface temp.
1285      b) add snow precipitation.
1286    checkpoint52l_pre
1287    
1288    o fix problem (when 1 tile is empty) in min/max monitor.
1289    o fix bug in timeAve (u,vZetatave in common block)
1290    o no restoring terms under ice for pkg/seaice
1291    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1292    o bug fix for pkg/seaice pickups
1293    o change MNC call locations and add coordinate attributes
1294    o mask vorticity at the corner ; affects global_ocean.cs output
1295    o fix ini_curvilinear_grid ; test CS experiments with mpi
1296    o aim.5l_cs: modify sea-ice fraction input file ; update output
1297    o exf: Adding simple range check routine for exf fields after read
1298    
1299    checkpoint52k_post
1300    o removed top-level directory "diags"
1301      - we migrated these functions to pkg/timeave a long time ago
1302    o fixed bug introduced in pkg/monitor
1303    o accuracy ctrlprec = 32 insuffient for gradient checks using
1304      averaged fields (I/O via cost_averages)
1305      -> use ctrl.h in active_file*.F to control I/O precision.
1306    o paramter list of CALL ADTHE_MAIN_LOOP
1307    o added initial do_the_model_io to ecco
1308    o set all ...Freq to zero after cost_final
1309      taveFreq, dumpFreq, pChkptFreq
1310    o MAIN and ECCO differentiability restored
1311    
1312    checkpoint52j_post
1313    o fix nchklev in tamc.h for global_ocean...
1314    o Bringing flow and store directives up-to-date
1315    o Really weird thing!
1316      call do_the_model_io from the_main_loop with parameters
1317      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1318      TAF places a faulty re-call of initialise_varia
1319      after cost_final call which should not be there!
1320    checkpoint52j_pre
1321    
1322    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1323      error messages
1324    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1325    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1326      debug output
1327    o modfied mdsio_writefield.F to handle non-global files under exch2
1328    o update AIM Cubed-Sphere exp (aim.5l_cs):
1329      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1330    o update AIM Equatorial Channel exp:
1331      use standard aim_v23 pkg and change the SST fields to be more realistic.
1332    o globalFile now works with exch2
1333    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1334      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1335    o limit timeave output for hi-res integrations
1336    
1337    checkpoint52i_post
1338    o removed CPP_EEOPTIONS.h from verification/*/code
1339    o updated the tiling for global_ocean_pressure
1340    checkpoint52i_pre
1341    
1342    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1343      the old pkg/aim).
1344    
1345    checkpoint52h_pre
1346    o shortened offending lines in exch2_send_rx?.template
1347    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1348    o genmake2: add build & execute test for NetCDF code
1349    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1350      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1351    o added useSingleCPUIO flag to monitor.F and mon_out.F
1352    o added temporary hack for sea-ice dynamics on the cube:
1353      metric terms are ignored and it is assumed that
1354      there is no sea-ice on cube faces 1, 2, 4, and 5.
1355    
1356    checkpoint52f_post
1357    o added exch2 cube routines to pkg/exch2
1358    o modified hs94.cs-32x32x5 to use it
1359    o added new grid files to hs94.cs-32x32x5
1360    checkpoint52f_pre
1361    
1362    checkpoint52e_post
1363    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1364      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1365    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1366      to work with implicit vertical advection and AB ;
1367    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1368    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1369     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1370    checkpoint52e_pre
1371    
1372    o fix bug in impldiff when Nr=1 or Nr=2.
1373    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1374    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1375    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1376      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1377    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1378    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1379    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1380    
1381    checkpoint52d_post
1382    o re-tiled many expts to allow comparison in multi-processor mode
1383      - updated output accordingly
1384      - changed hs94.128x64x5 to use intial T from file rather than use the
1385        random number generator
1386    o add infrastructure in model routines for fizhi and gridalt packages
1387    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1388    o changes to permit hi-res, cubed-sphere, configuration
1389      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1390      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1391      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1392        of surface winds for the cube
1393      (A verification experiment, based on global_ocean.cs32x15, but with
1394       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1395       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1396       complete with example surface forcing files and matlab scripts to look
1397       at the output and compare it with that of global_ocean.cs32x15.)
1398    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1399       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1400       to conform to the common rule.
1401    o check-in the first version of the coupler + interfaces for multi-components
1402       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1403       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1404       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1405       - ocean and atmos. share the same horizontal grid (no interpolation).
1406       - exchanges between component and coupler is done in forward_step
1407    o new verification experiment, cpl_aim+ocn:
1408       coupled ocean - AIM atmosphere on cs32 grid.
1409    
1410    checkpoint52d_pre
1411    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1412    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1413    
1414    checkpoint52c_post
1415    o Fixing OPTIONS files for use of exf:
1416      - ALLOW_ECCO not needed
1417      - ECCO_CPPOPTIONS.h should not be included from
1418        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1419        as has been the case in the past
1420      - All cal/exf related options are currently set in
1421        single header file. Should remain so until we
1422        agree on a consistent new policy.
1423    o Removed all CPP options for cal package.
1424      cal has no more CPP options.
1425    o modified STOREs in GAD_ADVECTION
1426    o corrected key comp. for passkey
1427    
1428    checkpoint52b_post
1429    o new version: "thsice" of thermodynamic sea-ice pkg:
1430     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1431     - modify fluxes but do not change theta directly;
1432     - light cleaning of bulk_force pkg (still needed with thsice).
1433     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1434       + output_thsice.txt to test thsice & bulk_force pkgs.
1435    o put back grid & coriolis monitor output.
1436    checkpoint52b_pre
1437    
1438    o call "do_the_model_io" at the beginning (=> dump initial state)
1439    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1440    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1441      (need info on NUMBER_OF_PTRACERS)
1442    o missing PTRACERS headers in some routines
1443    o default tamc.h in pkg/autodiff supposed to crash
1444      to ensure proper customization
1445    
1446    checkpoint52a_post
1447    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1448      - moved surfaceTendencyTice from pkg/seaice to main code
1449      - subroutine FREEZE_SURFACE now limits only surface temperature
1450        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1451        => new output.txt for global_ocean.cs32x15 & global_with_exf
1452      - keep the old version of FREEZE for backward compatibility;
1453        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1454      - corresponding modifs for TAF directives
1455    o added surface flux output variables to TIMEAVE_STATVARS
1456    o time-averaged output for pkg/ptracers
1457    o fix problem with ECCO-related divided adjoint
1458      snapshot file was missing some ad-variables,
1459      but no warning issued by TAF
1460    
1461    checkpoint52a_pre
1462    o some bug fixes for #undef REAL4_IS_SLOW
1463    
1464    checkpoint52 = ecco_c52_e35
1465    o after testing adjoints of checkpoint51u_post
1466    
1467    checkpoint51u_post
1468    o this is the post-merge tag of the ecco-branch
1469      (needs another clean checkout and re-testing)
1470    o various natl_box_adjoint configs and results
1471      but no input fields
1472    o obcs adjoint not yet merged!
1473    o adding ECCO global 1x1 and 2x2 degree configs
1474    o updated/extended some store directives for seaice
1475    o pkg/ecco now containes ecco-specific part of cost function
1476    o top level routines the_main_loop, forward_step
1477      supersede those in model/src/
1478      previous input data.cost now in data.ecco
1479      (new namelist ecco_cost_nml)
1480    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1481    
1482    checkpoint51t_post
1483    o this is the pre-merge tag of the ecco-branch
1484    
1485    checkpoint51s_post
1486    o cleanup: removed various obsolete #define-s
1487    o pkg/grdchk
1488      - renamed 'ph-grd 3' to 'grad-res'
1489      - merged from ecco-branch
1490        (remaining bug fixes for obcs gradient checks)
1491      - additional high-precision output for testreport
1492        (grep for 'precision_grdchk_result')
1493    
1494    checkpoint51r_post
1495    o cleaned up or removed CPP_OPTIONS.h files
1496    o updated results for some of the tests to reflect the new
1497      optfiles (-ieee: -O0 instead of -O3)
1498    
1499    checkpoint51q_post
1500    o cd_code:
1501      - moved cd_scheme.F -> cd_code_scheme.F
1502      - separate read_checkpoint from cd_code_ini_vars.F
1503      - separated cd_code part from write_checkpoint
1504      - updated AD_SOURCE, generated .flow
1505      - added CD_CODE_VARS.h to the_main_loop
1506      - Moving cd_code specific store dir.s to pkg/cd_code
1507    o ctrl package totally restructured
1508      - pack/unpack now optional and decoupled from
1509        xx_/adxx_ I/O
1510      - ctrl_pack/unpack cleaned
1511        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1512      - confined inclusion of AD_CONFIG.h to where necessary.
1513    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1514    
1515    checkpoint51p_post
1516    o create initial cd_code package
1517      - WARNING: the initialization of fields within packages
1518        is broken because INI_FIELDS (where READ_CHECKPOINT is
1519        called) is called *before* PACKAGES_INIT_VARIABLES.
1520        This seems to be backwards since
1521        1) its important to initially zero the entire field including
1522           the "halo" region
1523        2) zeroing needs to be done *before* reading pickup info
1524           and the pickup call might or might not happen in any
1525           particular run
1526      - this needs an overhaul for R2
1527    o cleanup verification/*/code/GMREDI_OPTIONS.h
1528    o cleanup testreport
1529    
1530    checkpoint51o_post
1531    o bringing AD-related verif's up to date with genmake2
1532      - carbon/
1533      - global_ocean.90x40x15/
1534      - hs.94.1x64x5/
1535      - (front_relax/ )
1536    o (more) consistent directory structure for AD-related verif.'s
1537    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1538    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1539    o bug fix in find_alpha.F for MDJWF:
1540      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1541        change rho -> rho-rhoConst
1542      - replace call find_rho to find_rhonum
1543    o initialisation of rFlx extended to full array (required by TAF)
1544      and shifted to thermodynamics
1545    o removed PTRACERS.h in ptracers routine
1546    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1547    o Correcting initialisations for fVerU, fVerV.
1548    o helping TAF to recognize dependency on kUp for
1549      fVerU, fVerV
1550    o Replacing delZ by delR in pkg/ctrl/
1551    checkpoint51o_pre
1552    
1553    o undid all of cp51 pending some cleanups and discussion
1554    o added the [#include "AD_CONFIG.h"] statement to all files that need
1555       it for adjoint/tl #defines
1556     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1557     o removed tools/genmake since it no longer works
1558    
1559    checkpoint51n_post
1560    o modifications to make FREEZE flux visible to pkg/kpp
1561      - moved surfaceTendencyTice from pkg/seaice to main code
1562      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1563      - subroutine FREEZE now limits only surface temperature
1564        (this means new output.txt for global_ocean.90x40x15,
1565         global_ocean.cs32x15, and global_with_exf)
1566    o added surface flux output variables to TIMEAVE_STATVARS
1567    
1568    checkpoint51n_pre
1569    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1570    o added [#include "AD_CONFIG.h"] to all files that use the following
1571      defines:
1572      - ALLOW_ADJOINT_RUN
1573      - ALLOW_TANGENTLINEAR_RUN
1574      - ALLOW_ECCO_OPTIMIZATION
1575    
1576    checkpoint51m_post
1577    o incorporating changes to get TAMC/TAF working in genmake2
1578      - added new TAMC/TAF targets to the Makefile
1579      - various cleanups related to package handling
1580      - these changes should have no impact on the forward model
1581    
1582    checkpoint51l_post
1583    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1584     - faster algorithm for cal_addtime.F
1585     - higher precision arithmetic, where needed
1586     - pkg/exf *startdate variables changed from calendar date to
1587       model integration time
1588    
1589    checkpoint51l_pre
1590    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1591    o enable to apply restoring on S & T only in a latitude band.
1592    o update output (external_forcing_surf modif. change truncation errors)
1593       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1594    
1595    checkpoint51k_post
1596    o change default to: useNHMTerms=.FALSE.
1597     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1598       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1599     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1600        exp1, ideal_2D_oce
1601     - change data file of oceanic exp (leave the results unchanged for now)
1602       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1603    o set gravitySign automatically according to the vertical coordinate used
1604      (and change sign: back to "logical" value: +1 when R increases downward)
1605    o added an include barrier to the default CPP_OPTIONS.h and
1606      removed the #include "PACKAGES_CONFIG.h" from it
1607    o fix a bug in mom_fluxform (from chk51j_post)
1608    
1609    checkpoint51j_post
1610    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1611    o adjusted some flow directives (dynamics, thermodynamics)
1612    o added cubed-sphere case to test cost function
1613    o heckpoint_lev?_directives.h now include
1614      pkg-specific directives, whenever those are enabled.
1615    o Moving pkg-specific flow directives to corresponding pkg
1616      Moving pkg-specific differentiation list to corresponding pkg
1617      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1618      ---> conventions are
1619           - pkg_ad.flow
1620           - pkg_ad_diff.list
1621           - pkg_ad_check_lev?_dir.h
1622    
1623    checkpoint51i_post
1624    o merge of the branch-genmake2
1625      - knowingly breaks the older genmake
1626      - automatic generation of all ALLOW_${PKG_NAME} defines
1627      - new testreport supersedes older testscript
1628    o large number of package inclusion and header cleanups
1629    checkpoint51i_pre
1630    
1631    o new output for adjoin of global ocean vector invariant
1632    o fix for checkpoint of thermodynamic seaice and bulk_force
1633    o Steph gchem various cleanups
1634    
1635    checkpoint 51h_pre
1636    o fixed some single quotes
1637    o modify gchem pkg to be more versatile
1638    o modifications to clean up dic pkg
1639    o add pkg/cfc
1640    
1641    checkpoint51g_post
1642    o provide links for ARPACK and ADM*TLM
1643    o start removing verification/vero/
1644    o update AD-related stuff
1645      (in particular some IF-statements in model/src/ routines)
1646    o adding to verification/global_ocean.90x40x15/ adjoint of
1647      vector invariant setup
1648    
1649    checkpoint51f_post
1650    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1651    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1652      of tracer Green's fucntions for ocean inversion project.
1653    
1654    checkpoint51f_pre
1655    o Added on-the-fly spatial interpolation capability
1656        "USE_EXF_INTERPOLATION" to pkg/exf.
1657      - This is a temporary Cartesian-grid hack until
1658        the super-duper ESMF coupler becomes available.
1659      - See verification/global_with_exf/README for usage example.
1660      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1661        flags and modified pkg/seaice accordingly.
1662    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1663        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1664        non-local transport term.
1665    
1666    checkpoint51e_post
1667    o pkg/mom_vecinv:
1668      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1669      - add time-ave diagnostic of vorticity advection.
1670    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1671    o atmospheric geopotential: - include water vapor effect;
1672                                - use p^kappa in p* scaling.
1673    o land pkg: read initial state from files.
1674    o AIM : add stratospheric drag in the upper level
1675    
1676    checkpoint51d_post
1677    o change function ILNBLNK (=> last non-blank char.) to return zero
1678      (instead of the string length) when the string. char is empty
1679    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1680    o modif's to restore TAMC compatibility
1681      - avoid "_d" constructs in PARAMETER declarations
1682      - avoid interrupting lines by comment lines
1683    o Use cluster local disks for purely local I/O
1684      vs. globally visible disks needed for ctrl stuff
1685      (merged from ecco-branch)
1686      - new active_file_loc... and mdsio_..._loc routines
1687      - affected packages: autodiff, ctrl, grdchk, mdsio
1688    
1689    checkpoint51c_post
1690    o introducing integer flag debugLevel
1691      - debLevZero: suppress all output
1692      - debLevA: standard
1693      - debLevB: equivalent to current debugMode=.TRUE.
1694    o introducing pathname variable mdsioLocalDir for mdsio
1695      that can be specified at runtime
1696      (relevant for cluster I/O to local disk)
1697    `
1698    >>>checkpoint51b_post
1699    adjoint of ptracers
1700    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1701    o extended state in checkpoint_lev?, etc.
1702    o alternative ctrl/cost with tr1 or ptracer
1703    o new comlev1_bibj_ptracers
1704    o new ptracers.flow
1705    o made ptracers_forcing same as external_forcing_s
1706    o added verification for adjoint with ptracers
1707      - adm. grdchk fail so far
1708      - tlm. grdchk OK
1709      - checked tapelev/comlev recomputations: OK
1710    <<<checkpoint51b_pre
1711    
1712    checkpoint51a_post
1713    o added code for biogeochemistry package
1714      - new pkgs: dic, gchem
1715      - new subroutine in ptracers
1716    o modify code for biogeo packages
1717      - in model/src and pkg/ptracers
1718    
1719    checkpoint51
1720    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1721      - autodiff, ctrl, exf, grdchk, seaice
1722      kept separate packages
1723      - cost, ecco, obcs
1724    o updating verification/internal_wave, verification/lab_sea
1725      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1726    
1727    checkpoint50i_post
1728    o Preparing next differentiable checkpoint and sync
1729      of MAIN vs. ecco-branch
1730      - 1st step: this one is differentiable
1731      - 2nd step: next(! not this) checkpoint will have updated packages
1732                  from ecco-branch)
1733    
1734    checkpoint50h_post
1735    o new package "land": provide surface BC for AIM.
1736    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1737    o AIM: use true log-P extrapolation for near surface temp (= as in
1738        F.Molteni paper) ; update aim.5l_cs output.
1739    o New variable in PARM03 for more flexible pickups
1740    o somewhat cleaned package initialisation sequence for
1741      ctrl/ cost/ ecco/ in packages_... routines
1742    
1743    checkpoint50g_post
1744    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1745      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1746      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1747        made the default because of faster convergence than ADI
1748    
1749    checkpoint50f_post
1750    o exf totally restructured
1751      - replaced all exf_set_ routines by one generic exf_set_gen.F
1752        and made sure it's still differentiable
1753      - split exf_getffields.F into new exf_bulkformulae.F
1754      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1755      - updated adjoint/makefile and relevant verif. accordingly
1756    
1757    checkpoint50f_pre
1758     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1759          + change Evap over land. (update aim.5l_cs output)
1760     o added missing .cvsignores and made uniform across expts
1761     o changed configuration of tidal_basin_2d expt
1762     o added pkg/debug functions for tracing code in fatal crashes
1763     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1764     o new fn in pkg/monitor to stop model if solution grows too big
1765     o removed lots of single quotes from comments
1766    
1767    checkpoint50e_post
1768    o make KPP work with PTRACERS
1769     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1770       nearly a copy of kpp_transport_s
1771     - there is no analogue to SurfaceTendencyS, so I have to use
1772       gPtr(of the surface layer) instead
1773    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1774    checkpoint50e_pre
1775    
1776    checkpoint50d_post
1777    o change kpp output from multiple-record state files to single-record state
1778      files analogous to write_state.F
1779    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1780      analogous to the cg2d-related output.
1781    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1782      so that writing to internal file fn (with length 512) fails.
1783    checkpoint50d_pre
1784    
1785    checkpoint50c_post
1786    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1787    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1788    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1789    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1790    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1791    
1792    checkpoint50c_pre
1793    Merging from release1_p13:
1794    o bug fix for pkg/seaice dynamic solver
1795    o Added SEAICE_initialHEFF to pkg/seaice
1796    
1797    checkpoint50b_post
1798    o store u*,v* in gU,V instead of in guNm1,gvNm1
1799    o in order to put the momForcing out of the Adams-Bashforth:
1800      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1801      to timestep.F
1802    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1803    o re-generate output for highly sensitive test-exp:
1804       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1805    
1806    checkpoint50b_pre
1807    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1808    o corrected CPP option mismatch in exf_Bulk... functions for case
1809      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1810    
1811    checkpoint50a_post
1812    o Bug fix for merging between c50 and KPP.
1813      ikey was passed from thermodynamics to kpp_calc via
1814      common block rather than being recomputed in kpp_calc,
1815      in contradiction with new key itdkey.
1816      New key ikppkey created, and tamc.h headers updated.
1817    
1818    checkpoint50
1819    - 2nd step of merge with ecco-branch:
1820      merge changes in ecco-branch back into main trunk
1821    - bug fix in find_alpha
1822    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1823    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1824    - merged some sliced AD support routines
1825    
1826    checkpoint49
1827    merged from ecco-branch:
1828    o exf:
1829      - Enable initialisation of forcing fields to constant
1830        (runtime) values.
1831      - in exf_getffields.F
1832        Reduce i-/j-loop to interior domain, discarding overlaps.
1833        That also fixes wrong TAF-key computations for key_1, key_2
1834        with bulf formulae.
1835      - exf_init.F modify #ifdef for exf_init_evap
1836      - exf_getffieldrec.F, ctrl_getrec.F
1837        The following INT-usages are not safe:
1838          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1839          fldcount = int(fldsecs/fldperiod) + 1
1840        and were modified.
1841    o autodiff: checkpoint_lev...
1842      - updated storing for bulk formulae (some arrays were missing)
1843      - added state for seaice package
1844      - synchronized with main branch
1845    o DIVA:
1846      Modif.s in
1847      - the_main_loop.F
1848      - the_model_main.F
1849      and added cost_final_restore.F cost_final_store.F
1850      o With these changes, it is possible to fully separate
1851        the first forward run to compute the cost function (mdthe_main_loop)
1852        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1853        into separate model executions.
1854        This enables better tuning of DIVA to given queue sizes.
1855      o Loss of cost function value in consecutive DIVA runs is
1856        fixed by storing to 'costfinal' file.
1857      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1858        beginning/end of adjoint integration is accounted for.
1859      The current changes apply to TAF-1.4.26.
1860      TAF has one remaining bug, requiring one manual change
1861      (see MITgcm manual).
1862    o cal: synchronized between MAIN and ecco-branch
1863    
1864    checkpoint48i_post
1865    o Changes to restore differentiability of code w.r.t. previous tag
1866      (mostly adding new routines to make list and replacing
1867      pressure by totPhiHyd).
1868    o Updated and merged grdchk package
1869      - has both ADM and TLM checks
1870      - works for single- and multi-proc.
1871      - output cleaned
1872      - worked successfully for parallel DIVA
1873    o genmake:
1874      - Adding -platform=SP4
1875      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1876    o Modif. for DIVA:
1877      ctrl_unpack should not be called in intermediate DIVA interval.
1878      (similar thing would apply for active files such as
1879      tbar, sbar, psbar, which should not be reinitialised;
1880      only relevant for ecco-branch)
1881    
1882    checkpoint48h_post
1883    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1884    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1885    o Added SEAICE_initialHEFF to pkg/seaice
1886    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1887    
1888    checkpoint48g_post
1889    --- EOS:
1890    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1891      store total Potential in totPhyHyd for diagnostics & EOS.
1892    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1893    --- Pressure/geopotential gradient:
1894    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1895    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1896      ( changes results of global_ocean_pressure )
1897    o NLFS + z-coord.: add eta*Rho' contribution.
1898    o accurate phiHyd when using interface-W at the middle between 2 centers
1899     ( changes results of ideal_2D_oce )
1900    o includes r* 2nd term in potential gradient.
1901    
1902    checkpoint48f_post
1903    Merging from release1_p12:
1904    o Modifications for using pkg/exf with pkg/seaice
1905      - improved description of the various forcing configurations
1906      - added basic radiation bulk formulae to pkg/exf
1907      - units/sign fix for evap computation in exf_getffields.F
1908      - updated verification/global_with_exf/results/output.txt
1909    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1910      (SBO) core products, including oceanic mass, center-of-mass,
1911      angular, and bottom pressure (see pkg/sbo/README.sbo).
1912    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1913      to avoid negative values in shallow regions.
1914      - updated verification/natl_box/results/output.txt
1915      - updated verification/lab_sea/results/output.txt
1916    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1917    o Added useSingleCpuIO option (see PARAMS.h).
1918    o Updated useSingleCpuIO option in mdsio_writefield.F to
1919      work with multi-field files, e.g., for single-file pickup.
1920    o pkg/seaice:
1921      - bug fix in growth.F: QNET for no shortwave case
1922      - added HeffFile for specifying initial sea-ice thickness
1923      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1924    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1925      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1926    o pkg/seaice:
1927      - adjoint-friendly modifications
1928      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1929    
1930    checkpoint48e_post
1931    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1932    o dynamics: change definition of computational domain & adapt mom_fluxform
1933      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1934    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1935        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1936        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1937        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1938        inverted_barometer solid-body.cs-32x32x1
1939      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1940    
1941    checkpoint48d_post
1942    o in preparation for r*:
1943     a) use pre-computed gradient of hydrostatic potential:
1944        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1945     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1946        => affects results of glob_oce_pressure (different truncation error)  
1947      update output.txt of ideal_2D_oce & global_ocean_pressure
1948    
1949    checkpoint48d_pre
1950    o in preparation for r*:
1951      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1952      pass the 2 comp. of the grad. as arguments to momentum S/R.
1953      but for the moment, only used if it does not change the results.
1954    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1955    
1956    checkpoint48c_post
1957    Modifications in treatment of initial flux forcing controls
1958    to avoid extra storing of flux fields.
1959    
1960    checkpoint48c_pre
1961    o Added tidal_basin_2d experiment (currently 1D!)
1962    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1963    
1964  checkpoint48b_post  checkpoint48b_post
1965  o r* coordinate added in #ifdef NONLIN_FRSURF block.  o r* coordinate added in #ifdef NONLIN_FRSURF block.
1966   (modification to pressure gradient not yet implemented)   (modification to pressure gradient not yet implemented)

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