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revision 1.50 by adcroft, Thu Sep 27 14:24:19 2001 UTC revision 1.613 by mlosch, Thu Feb 16 10:42:31 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 advection: add code for choosing between the default (2nd order
8      central differences) and multiDim advection schemes provided by
9      pkg/generic_advdiff
10    o seaice:
11      - removed all references to SEAICE_GRID.h fields from
12        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
13        (cubed-sphere configuration will change a little)
14      - grid computations in seaice_init are obsolete now.
15      - cleaned up code a little so that is easier to read (hopefully).
16      - added new (better?) discretizations of default advection and diffusion
17        (turn on with SEAICEuseFluxForm)
18      - replace 1 in 3d global fields by kSurface in growth.F
19      
20    checkpoint58a_post
21    o seaice:
22      - bug fix in advect.F
23    o shelfice:
24      - separate shelfice load anomaly from pload (breaks with time
25        dependent forcing), => introduce constant field shelficeLoadAnomaly.
26        Its default is 0., but it may be computed more cleverly from (unknown)
27        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
28        done offline. A good approximation of the pressure load anomaly is
29        necessary to avoid large initial adjustment processes underneath
30        deep-reaching shelfice.
31      - small fix in ISOMIP shelfice_thermodynamics
32      - add more sophisticated thermodynamics of Hellmer (1989), this is
33        now the default
34      - give a few constants more intuitive names
35    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
36      if bulk formulae are used in long integration (especially EmPmR). Turn
37      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
38      if balancePrintMean, the imbalance that is substracted is printed to
39      STDOUT.
40    o fix bug (typo) in obcs_apply_eta.F
41    o add a new package shelfice which enables us to model the circulation
42      underneath shelf-ice with draughts of hundreds of meters.
43     - works
44     - to do: + include improved thermodynamics
45              + check whether kSurfC (from model/inc/SURFACE.h) can be used
46                instead of new field kTopC
47              + can we use topoFile, Ro_surf and existing code in ini_depth.F
48                instead of new field R_shelfIce and new code in ini_depth.F
49                and ini_mask_etc.F?
50              + adjust vertical mixing schemes?
51    o seaice pkg:
52     - add a cpp-flag to include a simple formula for a salinity dependent
53       freezing point of sea water at the surface
54     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
55       meridional stresses are now different (and hopefully correct)
56    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
57       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
58       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
59    o pkg/diagnostics: add options and parameters for regional-statistics
60       diagnostics ; define regions by reading a region-mask from a file
61       (might add other options later)
62    o pkg/bulk_force:
63     - add option and parameters to use AIM surface-flux formulae.
64     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
65       others forcing fields (defined in PARM05, parameter file "data") are loaded
66       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
67     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
68     - use the right EXCH call for uwind,vwind (to work on CS-grid).
69     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
70       and parameters (note: calcWindStress replaces .NOT.readwindstress).
71     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
72    
73    checkpoint58
74    o add "--embed-source" option to genmake2 which, when the supporting
75      tools can be compiled (as determined by genmake2) will turn on the
76      embed_files package which then embeds the entire MITgcm source code
77      (*.[fFhc] + Makefile) used for the build within the executable
78      - requested by CNH but off by default
79      - adds a paltry <9MB to the mitgcmuv executable in most cases
80      - only writes the output when useEMBEDSRC in eedata is true
81    o clean up 3-dim. relaxation codes:
82      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
83      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
84      * Thanks to Tom Haine for testing!
85    
86    checkpoint57z_post
87    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
88      affects output (@ truncation level) of exp. plume_on_slope ; updated.
89    o fix the pickup behavior for obcs in combination with ptracers
90    o fix a bug in ptracers_external_fields_load
91    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
92      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
93    o transfered surface NH pressure to eta field (if exactConserv).
94    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
95         and update lab_sea output.txt file.
96    o completing 3-dim. relaxation code: additional term
97         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
98      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
99      * At compile time, in "EXF_OPTIONS.h" set
100          #define  ALLOW_CLIMTEMP_RELAXATION
101          #define  ALLOW_CLIMSALT_RELAXATION
102      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
103          tauThetaClimRelax3Dim = 15552000.0,
104          tauSaltClimRelax3Dim  = 15552000.0,
105      * 3 cases:
106          1) Use a constant-in-time 3-dim. field
107          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
108          3) Real-time relax. to time-evolving prescribed field
109    o Adding Laplacian-type smoothness constraint on
110      initial and boundary (forcing) controls (ic, bc)
111      * enable at compile-time via
112        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
113      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
114      * Absolute scale somewhat unclear so far
115      * no area weighting was included since no other cost term does so far
116    
117    checkpoint57y_post
118    First step for a NLFS adjoint
119    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
120    o new init. routines for calc_r_star, calc_surf_dr
121    o still need to deal with ini_masks_etc
122    o testreport seemed happy
123    checkpoint57y_pre
124    
125    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
126    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
127    o add new offset feature to offline pkg (plus minor cleanup)
128    o cfc fixes for final year of integration
129    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
130      be in GCHEM_OPTIONS).
131    
132    checkpoint57x_post
133    o fix testreport Pb in multiple test experiment.
134    o cleanup our namelist syntax in verification:
135      - make it more F95 standards compliant (some work still needed)
136      - allows the vast majority of our tests to work with gfortran
137    o Non-Hydrostatic:
138     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
139     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
140    o Allow to apply AB on T,S rather than on AB(gT,gS):
141     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
142     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
143       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
144     - need a "clever" read_pickup to restart from the other AB formulation
145    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
146    o remove some unused variables (reduces number of compiler warnings)
147    o adjoint
148      * Disable useVariableViscosity for adjoint for time being
149        (there are a number of extensive recomputations)
150      * Initialize certain variables needed for adjoint
151    
152    checkpoint57w_post
153    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
154                 fix the singleCpuIO RS version of MDSWRITEFIELD
155       and add a WARNING if using globalFiles=T with multi-processors.
156    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
157      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
158    o tracer advection scheme:
159      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
160       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
161       was not very convenient).
162      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
163       (further tests needed for the implicit DST & Flux-Limiter schemes).
164    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
165      and sRef for convenience, handy, when you want to initialize
166      ptracers in a large domain with a constant non-zero value. Also,
167      untangle ptracers_init.F a little.
168    
169    checkpoint57v_post
170    o change dome exp. to use variable viscosity in side-drag terms.
171    o remove all the files from the cfc_offline test since they are now
172      incorporated into tutorial_cfc_offline which has been producing
173      identical results for a few days of testing
174    o add new parameter: sideDragFactor to enable half-slip-side BC
175      and change side-drag S/R to use viscosity from mom_calc_visc
176      (can switch back by setting sideDragFactor=0.); affects results at
177      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
178       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
179    o vorticity & strain are now computed without masking, to account for
180      no-slip-side BC in variable viscosity calculation ; mask is applied
181      anyway later on, before computing advection/coriolis terms.
182    o modify exp4 to test new obcs support for reading from external files
183      and for passive tracers
184    o fix behavior of ptracers_monitor when monitor output is written to a
185      netcdf-file; still not independent of monitor.F (writes in the same
186      file).
187    o change default value of tRef (put a uniform, meaningful value for ocean
188      & atmos) and initialize sRef (was missing, as Martin mentioned).
189    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
190      to be proportional to enstrophy dissipation length.  Thus,
191       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
192      This is now consistent with Smagorinsky and with the manual.
193    
194    checkpoint57u_post
195    o OBCS and PTRACERS: add open boundary support for passive tracers
196      - either use homogenous (pseudo) v.Neumann conditions or prescribe
197        OB-values from file; this is not different from the way theta and salinity
198        are treated
199      - however, Orlanski-radiation conditions are not supported, and the model
200        will stop if you use pTracers and Orlanski at the same time.
201      - beefed up the rountine obcs_external_fields_load: now only those open
202        boundary values are overwritten with values from files for which there
203        are really files, otherwise the OB-fields remain untouched. This makes
204        it possible to use different OBs at different ends of the domain (as
205        with EXF)
206    o reduce number of exch calls in shap_filt (s2).
207    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
208      truncation level) 4/5 MLAdjust test results (11&12 digits match).
209    
210    checkpoint57t_post
211    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
212    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
213      same truncation, independent of the face number: affects affects several
214      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
215    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
216      note that biharmonic viscosity + no-slip was not tested in any experiment.
217    o fix bug in non-linear free-surf side-drag ; generate new output for
218      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
219    o make mnc honor the writeBinaryPrec flag for most kinds of output
220    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
221    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
222      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
223    o add brackets in multi-terms sum to get same truncation, independent of
224      the face number (manage to get exactly same value of gU,gV at the cs-edge)
225      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
226    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
227      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
228      a maximum grid-scale Reynolds number.  Also, changes all length calculations
229      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
230      Suggested values of viscosity parameters found in mom_calc_visc.
231      Many new viscosity diagnostics available.
232    
233    checkpoint57s_post
234    o Add clearing-house for viscosity calculations, mom_calc_visc and
235      correct numerous bugs in LeithD and Smagorinsky discretizations.  
236      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
237      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
238      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
239      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
240      The Strain-Tension form is now called with useStrainTensonVisc=.true.
241      ViscAhStrain and viscAhTension are now retired.
242    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
243    o In response to JMC's bug report, genmake2 now ignores any soft-links
244      that it finds in the *current* directory when searching for files.
245      Soft-links found in any other source directories will still work as
246      they did before.
247    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
248      a C routine to unlimit the stack size
249    o mnc-ify pkg/aim snapshot vars
250    o mnc-ify pkg/land as requested by Daniel
251    o various changes to mnc including:
252      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
253      - output can now be grouped so that all files within a group
254          change the ITER portion of their names in lock-step together
255      - can now read ("global") PER-FACE (in addition to PER-TILE) files
256          and works with both EXCH1 and EXCH2 (but needs more testing)
257      - writing works for all verification test cases w/ g77 on Linux
258    
259    checkpoint57r_post
260    o make MNC variable initialization happen earlier
261    o add diagnostics for (almost) each term of the momentum Eq.
262    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
263    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
264    o remove MINIMAL_TAVE_OUTPUT option ;
265      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
266    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
267      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
268    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
269    o add time-dependent SST, SSS control
270    o cost terms in ecco/ modularized (new cost_generic.F)
271    o cost_averages routines are modularized (new cost_averagesgeneric.F)
272    o new infrastructure for seaice model vs. obs misfits in seaice/
273      * driver from the_main_loop.F is seaice_cost_driver.F
274      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
275      * gradient check in Exp. 6a of natl_box_adjoint/
276    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
277      (see README file)
278    
279    checkpoint57q_post
280    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
281    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
282      - bug was reported by Jean-Michel and Ian Fenty
283    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
284      update exp. cpl_aim+ocn output.
285    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
286      Needed for high-res. runs with large global files
287      to be able to limit tapelev size
288    o Changed some tests for adjoint:
289      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
290      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
291      * global_ocean.90x40x15/ back to default 3-level checkpointing
292    o Modifications to enable scripted COMMON to MODULE conversion
293      * verification/OpenAD/code/ has necessary scripts and description;
294      * converts, compiles and runs successfully;
295    
296    checkpoint57p_post
297    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
298    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
299      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
300    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
301    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
302      (was already the case for dissipation with mom_vecinv,
303       and also the case for grad.PhiHyd when staggered-timeStep)
304      This will allow to put dissipation out-off the AB time-stepping.
305     Unfortunately, affects truncation error. Update output of exp. that "fails"
306      (cg2d matching number) and leave the others for later: front_relax(10),
307      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
308      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
309    
310    checkpoint57o_post
311    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
312      (2) its ready to be documented during the 20050801 DocFest
313    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
314      for ideal_2D_oce and lab_sea on linux_ia32_g77
315    o set to #undef CTRL_SET_OLD_MAXCVARS_30
316      in global1x1_tot/code_seaice_adj to access indices 32, 33
317      (worth another tag)
318    
319    checkpoint57n_post
320    o adding precip control xx_precip 32
321    o adding swflux control xx_swflux 33
322    o Replacing 10 forcing penalty cost routines by 1 generic.
323    o Implementing partitioning in time-mean and variable adjustment
324      for atmos. state.
325    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
326    o in natl_box_adjoint:
327      * updated exp 1 to 10
328        (but does not have time-mean vs. variable split results yet)
329    o updated global1x1/*_seaice_adj/
330      to incorporate latest changes
331    o enable useSingleCpuIO for mdsio vector routines
332      (applies in particular to tapelev I/O)
333    o removed inefficient K-loop in all active_file*control*.F
334    
335    checkpoint57m_post
336    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
337      and advect_cs (use EXCH-2 and standard cs-32 grid files).
338    o pkg/exch2: filling of face-corner halo regions is optional
339      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
340    
341    checkpoint57l_post
342     tag before updating tutorials (pre-release-2)
343    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
344       for output and interpolation of input fields onto model grid)
345    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
346       Affects results of exp. rotating_tank ; update output.txt.
347    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
348          and taking the square quantity and/or using a fraction-weight field.
349    o fix aim_diagnostics_init.F mate numbers.
350    o add mnc output capability to diagnostics/diagstat and update
351      our cvsignore files for the ACSII output generated
352    
353    checkpoint57k_post
354    o lab_sea now uses diagnostics package and provides a suite of
355      new EXF diagnostics output.
356    
357    checkpoint57j_post
358    o exf
359      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
360        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
361        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
362      * extended diagnostics output
363        - now includes all EXF variables
364        - hs, hl moved to common block
365        - separate S/R for diagnostics, called after ctrl vector is added
366        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
367        - EXFqnet contains true Qnet (i.e. includes qsw)
368      * updated verif. lab_sea, global_with_exf
369      * Rearranging hflux (exf_mapfields -> exf_getforcing)
370        to ensure that diagnostics sees a true EXFqnet
371    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
372    o diagnostics pkg: change pointers so that 1 diagnostic can be used
373      several times with different frequencies.
374    o mnc-ify the thsice package as requested by Daniel Enderton
375      - the monitor--MNC output needs work
376      - many attributes need to be added (most are currently blank)
377    o mnc-ify theaim_v23 package as requested by Daniel Enderton
378      - many attributes need to be added (most are currently blank)
379    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
380    o add Sadourny like discretization to the 4th.O vorticity advection scheme
381    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
382      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
383         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
384    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
385     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
386    
387    checkpoint57i_post
388    o Diagnostics package was changed: diagnostic allocation is now deactivated
389      by setting an empty file name in the namelist (used to be by setting 0 frequency)
390    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
391      add 1rst Order upwind vertical Shear.
392    o add a quick fix for A/B checkpointing in OFFLINE mode
393    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
394      end-run around the C/Fortran linking horror in eesup/src/timers.F
395    o added pkg/runclock: allows user to terminate run based on wall clock
396    o added non-hydrostatic scaling parameter: nh_am2
397    o pkg/my82: futile attempt to make results compiler-independent by adding
398      some "_d 0", etc. no effect.
399    o for mnc output, fill the 'T' coordinate var with myTime and create a
400      separate 'iter' variable for iteration count
401    o pkg/diagnostics:
402      add new capability: output of Global/Regional & per-level statistics ;
403      tested against monitor output (including land & thSIce) on various exp.
404    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
405    
406    checkpoint57h_done
407      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
408      data.diagnostics, data.gchem, data.ptracers) is done.
409    
410    o pkg/diagnostics: prepare for Global/Regional statistics.
411      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
412    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
413      and rename it: DIFFERENT_MULTIPLE
414    
415    checkpoint57h_post
416    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
417    o pkg/diagnostics: change output frequency, now in seconds (instead
418      of Nb of iterations). This requires to change data.diagnostics.
419    checkpoint57h_pre
420    
421    o in mnc, let the user create the output dir if both mnc_outdir_date
422      and mnc_outdir_num are false
423    o add fflags() to pkg/diagnostics which allows one to specify, on a
424      per-file basis, the file precision [default behavior is unchanged]
425    o added diagnostics to pkg/kpp, including computation of mixed layer
426      depth based on a temperature/density criterion
427    o updated verification/natl_box to test the new pkg/kpp diagnostics
428    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
429    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
430    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
431      not mnc -- this mistake was found by JMC and is now corrected
432    
433    checkpoint57g_post
434    o add Adams-Bashforth 3rd Order time stepping:
435      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
436      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
437    checkpoint57g_pre
438    
439    o make lambda[Theta,Salt]ClimRelax spatially varying
440      (default remains spatially uniform constant based on tau)
441    o added new control variables
442      * init. uVel, vVel, etanN
443      * lambda[Theta,Salt]ClimRelax
444    o separate masks used for ctrl_pack/unpack 'from write_grid' output
445      (suggested by G. Forget)
446    
447    checkpoint57f_post
448    o add parameter "baseTime" = model base time = time at iteration zero
449      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
450      account for baseTime shift
451    o move Coriolis arrays from PARAMS.h to GRID.h
452    checkpoint57f_pre
453    
454    o mnc-ifying the seaice package
455    o introduced an alternative length scale calculation for use in the limiting
456      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
457    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
458    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
459      as well as grad(vort3).  Made it compatible with both approximate form
460      for the cubed sphere and full form of these gradients.  Added flag
461      useFullLeith to select between approximate and full form.  
462    o add "d0" in getcon.F to reduce differences between compilers/platforms
463      update output.txt of exp. fizhi-gridalt-hs
464    o change port_rand funtion to allow to set the seed.
465    o fix obscure MNC bug involving conversion between reals and integers
466      - it caused no problems with certain (eg. gcc, ifc) compilers but the
467        new version is now more standards-compliant
468    o adjoint-related modifications
469      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
470      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
471      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
472    
473    checkpoint57e_post
474    o Adding eddy stress controls a la Ferreira et al.
475    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
476    
477    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
478      update output.txt of exp. fizhi-gridalt-hs
479    o add more "Z" dimensions and associated coordinate vars to MNC
480    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
481    o parameter calendarDumps: when set, approximate months (30-31 days) and years
482      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
483      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
484      months and years.  Requires pkg/cal.
485    o diagnostics: add pickup functionality
486      - off by default for backwards compatibility
487      - current version only uses MDSIO -- MNC will be added
488    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
489    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
490    
491    checkpoint57d_post
492    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
493    o modify verification/ideal_2D_oce so that it tests the creation of mnc
494      output from the diagnostics package
495    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
496    o make genmake2 more portable by using ".$FS" instead of ".f" for more
497      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
498    o add coordinate variables to the MNC output from the diagnostics package
499    o change MNC-flags default value: true when useMNC=TRUE
500    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
501      the ability (off by default) to read the grid information using MNC
502    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
503    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
504    o do snap-shot diagnostics at the middle of the time-interval (instead of
505      at the end).
506    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
507      new test for AIM with thSIce + slab-ocean
508    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
509    o move state variable diagnostics to the beginning of the time step ;
510      (note: still needs some work specially for snap-shot diagnostics)
511      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
512    
513    checkpoint57c_post
514    o Change testing option (-ieee) to get closer agreement between g77 & ifort
515    o generate new output.txt files on faulks with g77 & the new -ieee option
516    checkpoint57c_pre
517    
518    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
519      update output.txt of exp. global_ocean.90x40x15
520    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
521      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
522    o add saltFlux(+File) forcing capability with periodicExternalForcing
523    o allow to use pkg diagnostics for GM-Redi & ThSIce output
524    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
525    o improvements for the MNC output from DIAGNOSTICS:
526      - correct handling of the unlimitied dimension
527      - all dims now have associated coordinate variables
528      - variables located at U, V, and Corner ("Z") points are now written
529        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
530        *all* data points are output
531    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
532    o added pkg/seaice/seaice_monitor.F
533    o mdsio_readfield.F can now read files visible only to master MPI process.
534    o pkg/seaice: some test code for ice-modified ocean stress
535    o exf_getffields interpolation defaults to bilinear for all scalar forcing
536      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
537      spurious negative numbers for precipitation and humidity.  Will cause
538      some small numerical differences for integrations using pkg/exf/exf_interp.F.
539    o pkg/ctrl/
540      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
541        May be enabled via doPackDiag
542      *  introduce z-scaling of
543         + gradient (doZscalePack) and
544         + control (doZscaleUnpack)
545    o pkg/mdsio/
546      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
547      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
548    
549    checkpoint57b_post
550    o simplify options in diagnostics_fill arguments (remove weird combinations)
551    o fix MNC coordinate variables so that they now contain per-face index
552      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
553      general, EXCH2 grids are only aligned to a "local" coordinate system
554    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
555    o Implement instantaneous output within pkg diagnostics:
556      setting a negative frequency in data.diagnostics produces
557     "snap-shot" output (as opposed to time-average if freq > 0)
558    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
559      NOTE: change ptracer diagnostics name: use 2 characters to work with
560            more than 9 tracers. Add also diagnostics of advect & diffus flux.
561    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
562      becomes the coordinate variable for the 'T' dimension
563    o add CF-style coordinate variables to MNC
564      - just a first cut:  numbers are meaningless on the cubesphere and
565        missing along the T axis but otherwise it works!
566    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
567    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
568    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
569      this is based directly on what the model compute, so that the content of
570      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
571    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
572    o clean up build options files for SunOS, in particular
573      - remove -traditional from xmakedepend
574      - change -xarch=v9 to -xarch=native for f77
575      - restore use of make (not gmake)
576      - add CC=gcc if using g77
577    o changes per discussion of AM, JMC, & EH3 today:
578      - move redundant "grid" variables out of "state" -- in preparation of
579        creating proper CF-style coordinate variables and in recognition
580        that any/all grid variables can be easily copied (eg. w/NCO) from
581        the grid files into any of the other NetCDF files
582      - *always* output grid variables with MDSIO (this will eventually be
583        changed)
584      - output MNC grid file if useMNC is true
585    o every instance of _END_MASTER() has been found and replaced with
586      _END_MASTER( myThid ) in order to satisfy certain picky Sun
587      preprocessors
588    o re-arrange diagnostics pkg initialisation:
589     - allow each package to extend the available diagnostics list
590     - add some checking and fix small problems (multi-threaded, ...)
591     - new S/R diagnostics_fill (replace fill_diagnostics):
592       look through the short list of active diag. (instead of the long list)
593       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
594    
595    checkpoint57a_post
596    o this set of changes restores TAMC compatibility
597      tested for global_ocean.90x40x15 adjoint on trough
598      (what a pain)
599    
600    checkpoint57a_pre
601    o some modifs in tools/build_options for sunos
602    o call ctrl_pack for ctrl at end for optimcycle=0
603    
604    checkpoint57
605    o add horizontal bi-harmonic viscosity for vertical velocity
606      - new parameter viscA4W (defaults to viscA4)
607      - affects only non-hydrostatic code
608      - to be done: no-slip lateral boundary conditions
609    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
610    o implement Implicit Vertical advection for pTracers
611    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
612      (implemented also for implicit vertical diffusion & advection)
613    o OBCS: extend application of tracer open boundary conditions
614      to a strip beyond the boundary of width Olx/Oly
615    o add call monitor to TAF set of required calls (flow directives)
616      and include in natl_box_adjoint
617    o untangle a few ifdefs related to cost, ctrl, autodiff
618      untangel a few ALLOW_ECCO_OPTIMIZATION
619    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
620      (theta2, salt2 in ecco_cost_weights)
621    
622    checkpoint56c_post
623    o OBCS as control variables
624      - update ctrl_ad_diff.list, obcs_ad_diff.list
625      - remove balance of obcs controls from default
626      - fix index bug nobcs in ctrl_init
627      - fix dummy fields filen in ctrl_pack
628      - add dummy weights for obcs
629    o lsopt: comment out fort.94 output
630    o optim:
631      - remove unnecessary header files
632      - adjusted namelists
633      - add xerbla.F to Makefile
634    o exf:
635      - multiple modifications of exf_check_range
636      - unit change in exf_init_runoff from [m/year] to [m/s]
637    o mdsio:
638      - i/o-vector change debugLevel from debLevA to debLevB
639    
640    checkpoint56b_post
641    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
642      is called from DO_THE_MODEL_IO
643      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
644      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
645      - clean up PTRACERS_WRITE_TIMEAVE a little
646    o add another verification experiment that tests both the cfc-pkg and
647      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
648      reactive tendencies treated inline with regular timestepping
649    o testreport previously did a lousy job of comparing small numbers, so
650      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
651      implemented in the little c-progam tmp_cmpnum.c which is embedded in
652      testreport.
653    o ptracers_monitor: bug fix for MPI
654    
655    checkpoint56a_post
656    o GCHEM: finish reorganizating the package
657      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
658        (introduces another 3D-array for each passive tracer, but only if
659        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
660        gchemTendency is not needed because the timestep is done separately)
661      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
662      - GCHEM is now---more or less cleanly---separate from PTRACERS
663      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
664        so clear to me how that should be done in a general way.
665    o CFC: improve formatting of output in CFC_ATMOS
666    o PTRACERS:
667      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
668        that ALL experiments with ptracers enable can be checked. This makes
669        GCHEM_MONITOR obsolete.
670      - include a runtime parameter PTRACERS_monitorFreq that defaults to
671        monitorFreq
672      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
673    o add PTRACERS (PTR0[1-5]) to testreport output
674    o exf_check_range:
675      * default changed to .TRUE.
676      * will check values for niter0 if debLevA, every timestep if debLevB
677      * STOP in exf_check_range if 'out of range'
678      * range chosen generous to allow for potential extema
679      TBD: a version with stricter range
680           permitted range would be runtime parameters
681    o GMredi:
682      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
683      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
684      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
685    o GCHEM:
686      - move call to GCHEM_FORCING_SEP, so that it is now called before
687        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
688      - introduced a useGCHEM runtime flag and applied it everywhere.
689      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
690        this flag is now only visible within GCHEM-pkg routines.
691      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
692        be replaced by a 3D array that is computed before thermodynamics; for
693        this, the tracer ID iTracer had to be included into the parameter list
694        of ptracers_forcing
695      - set up forward_step to call gchem_forcing, that will replace
696        gchem_forcing_int in ptracers_forcing
697      - cleaning up
698    o small cleaning of exch2: remove files that are also in eesupp/src
699    
700    checkpoint56
701    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
702    o mnc: cleanup "full" files--fixes out-of-memory problem
703    o ECCO-GODAE
704      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
705      * fully merged and updated from SIO code
706        windstress sign change affects
707        - exf_inscal_[u/v]stress
708        - sign of xx_tau[u/v] adjustments
709        - signs in cost_scat
710      * ctrl_get_gen: avoid update of tau[u/v] for first few days
711      * natl_box_adjoint updated and compressed
712      * 2-level checkpoint switch added
713        (tested in EXP. 1 of natl_box_adjoint)
714      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
715    o SVD
716      * first complete, non-hacked version for SVD calculations
717      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
718        performed via direct access files admtlm_vector.it????
719        (via ctrl_[un]pack)
720      * optimcycle is used for ARPACK iteration counter
721        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
722      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
723        and add linear transforms where necessary
724      * controls are initial/final SST, SSS (can be extended; need to check
725        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
726    o mdsio: filename info to both stderr, stdout
727    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
728      from sign change
729    
730    checkpoint55j_post
731    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
732      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
733    o add consistent build directories and .cvsignore files to verification
734    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
735    o make all subroutines 30 or less characters in length for certain older
736      compilers to work (a thorough search only turns up two routines in
737      pkg/ptracers)
738    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
739      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
740    
741    checkpoint55i_post
742    o change arrays for total vertical diffusivity (2.D if explicit,
743      3.D if implicit) ; each ptracer uses its own background value.
744    o added mnc/NetCDF output capability to ocn_compon_interf
745      - added bits to verification/cpl_aim+ocn so that it can run on
746        ITRDA and other clusters without the mpirun "-wd" option
747    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
748      configuration
749    o give MNC the ability to create additional files rather than
750      exceeding a specified file size limit "MNC_MAX_FILESIZE"
751      - the default is just less than 2GB which is a practical limit
752        on many systems
753    o Compute the non-local term using either KPP vertical diffusivity (=default)
754       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
755    
756    checkpoint55h_post
757    o add verification test "vermix"
758    o remove all the *_ioinc flags and replace with the single global
759      outputTypesInclusive flag
760    o allow to set a vertical profile of vertical diffusivity for T & S
761    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
762    o useMNC moved from data.mnc to data.pkg
763    
764    checkpoint55g_post
765    o Renaming carbon AD experiments to comply with testreport conventions
766    o Updating adjoint of Held-Suarez hs94.1x64x5
767    o Fixing directives for non-ECCO forward_step, after ECCO directives
768      have been fixed to avoid recomp. of do_oceanic_phys
769      Works well for global_ocean.90x40x15,
770      but recomp. issue remains for carbon
771    o Updating adjoint output for natl_box_adjoint after
772      pkg/ecco has been modified (see taga c55d_post)
773    
774    checkpoint55f_post
775    o rename to timeave_init_fixed
776    
777    checkpoint55e_post
778    o some delicate re-shuffle of store directives to avoid one
779      extra call of do_oceanic_physics
780      affects ecco_the_main_loop.F, do_oceanic_physics.F
781      checkpoint_lev1_directives.h
782    o NB: this may break global_ocean adjoint temporarily,
783      but it is clear how to fix it. Will do later, need this now.
784    
785    checkpoint55d_post
786    o ECCO specific cost function terms (up-to-date with 1x1 runs)
787    o ecco_cost_weights is modified to 1x1 runs
788    o modifs to allow observations to be read in as
789      single file or yearly files
790    o enable to read exf forcing fields as either
791      single file or yearly files (flag useExfYearlyFields)
792    checkpoint55d_pre
793    
794    o switch between 2-level and 3-level checkpointing
795    o add ability of MNC to write local and "partial" (eg. 2D slices where
796      the full 3D field is never actually stored) arrays to NetCDF files
797      with the correct (that is, the complete multi-dimensional) set of
798      array indicies
799      - used in mom_vecinv() to write the diagFreq output
800      - tested (demonstrated) in verification/aim.5l_cs
801    o further mnc-ification
802      - add verification/lab_sea to the list with mnc setups
803      - fix undefined mnc v-names in cd_code
804      - add kpp to mnc output (both snapshot and timeave)
805    o non-hydrostatic code
806      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
807        in calc_gw.F
808      - defaults to viscAh
809      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
810        friction or Leith) in non-hydrostatic mode, as long as there is
811        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
812    o pkg/cost
813      extend simple cost functions to treat time mean quantities
814      (T,U,V) via cost_accumulate_state from cost_tile
815    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
816        be 2 times larger than the minimum size the advection scheme requires.
817        now get a perfect conservation of salt in advect_cs test-exp (updated)
818    o GGL90 (Gaspar's TKE mixed layer)
819      - add horizontal diffusion of TKE, requires exchanges in
820        do_fields_blocking_exchanges, horizontal diffusivity is zero by
821        default. In OPA there is no horizontal diffusion of TKE but the
822        mixing coefficients are computed from a horizontal average of TKE of
823        6 points or so. I think that diffusion has a little more physical
824        justification.
825      - clean up ggl90_calc in the hope of reducing memory usage (this hope
826        was in vain)
827      - mask tke-variable in ggl90_init
828    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
829    o fix biharmonic diffusion on CS-grid.
830    o more obcs stuff
831      - added obcs_external_fields_load as an alternative to the EXF-pkg option
832        for reading boundary values. This routine is called from
833        obcs_prescribe_read
834      - updated obcs_check
835      - changed sponge layer relaxation parameter units for days to seconds
836      - turned off sponge layer by default
837      - changed argument list of OBCS_CALC to myTime+deltaTclock
838      - fixed about 35 bugs in obcs_external_fields_load
839    
840    checkpoint55c_post
841    o obcs stuff
842      - new runtime flags useOBCSprescribe, useOBCSbalance
843      - re-arranged obcs_calc
844      - moved exf_getobcs to obcs_prescibe_read
845        obcs_prescibe_read is called after ORLANSKI stuff
846        and independent of it (executable can contain all).
847      - updated obcs_check
848      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
849        These may be necessary only if tangential velocities are
850        prescribed at OB, not sure, needs testing.
851    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
852      which simplifies the calls and passes the ifc check-bounds test
853    
854    checkpoint55b_post
855    o add a 2D scalar, Z location, exchange_2 routine.
856    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
857      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
858      affects advect_cs results (for the wrong reason): update output.txt
859    o use a more standard discretization for biharmonic viscosity ;
860     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
861      affects results of dome set-up: update output.txt
862    o fix gad_advection.F (CubedSphere part), back to version 1.23
863    o fix bug in mom_vi_del2uv.F (CubedSphere part).
864    
865    checkpoint55a_post
866    o merged code to
867      * prescribe/read time-dependent open boundaries
868        (works in conjunction with exf, cal)
869      * sponge layer code for open boundaries
870      * each boundary N/S/E/W now has its own CPP option
871        (healthy for the adjoint)
872    
873    checkpoint55
874    o up-to-date adjoint of previous breaks
875      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
876      - global_ocean_ebm: adjoint still needs fix (TLM ok)
877      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
878      - carbon: * remove tr1-related adjoint verification
879                * add ptracer as control variable
880    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
881      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
882    
883    checkpoint54f_post
884    o in verification/carbin/ remove experiment related to
885      ALLOW_PASSIVE_TRACER (array tr1 etc)
886      code_ad/ input_ad/ results_ad
887    
888    o add two new packages
889      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
890        + subject to optimization (memory)
891      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
892        + subject to reordering (many GOTOs in the original code)
893        + so far opps is called for every (i,j) point, and then operates in
894          the vertical; one may want to reorder the scheme in order operate in
895          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
896          fields)
897    o overhaul of IO so that we now have flags for MDSIO and/or MNC
898      - all verification tests compile and run with linux_ia32_g77
899      - defaults are compatible with current input files--nothing
900        should change if you were not previously using MNC
901      - MNC output has been added in numerous places (eg. timeave)
902        but there are still a few writes not yet do-able with MNC
903        (this is in progress)
904      - flags now allow for either/or/both use of MDSIO and MNC and
905        documentation will soon follow
906      - numerous small formatting cleanups for ProTeX
907    o add version info (via BUILD_INFO.h) to MNC and stdout
908    
909    checkpoint54e_post
910    o add two new packages
911      - pp81 (Packanowski and Philander, 1981), Richardson number and
912        stratification dependent mixing
913      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
914      - these scheme operate in a similar manner as KPP (without ghat, of
915        course), however there is only one diffusivity that is used for both
916        temperature and salinity (and passive tracers)ç
917    o add offline package
918    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
919      provided by Stephanie Dutkiewicz
920    o genmake2: add ability to search for C compilers and cleanup test output
921      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
922    
923    checkpoint54d_post
924    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
925    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
926      leading to additional shift by 5 days each year of integration
927       (i.e. leading to considerable offset over the years)
928    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
929    o start with no AB and no initial filtering (staggerTimeStep):
930      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
931    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
932      (external loading & cpl import/export stay in forward_step.F)
933    o update coupling interface to work with new staggerTimeStep
934    o change MDSIO ptracers_pickup.
935    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
936    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
937    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
938    
939    checkpoint54c_post
940    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
941      this affects (truncation error) output.txt of test-exp:
942       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
943    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
944    o change Qnet to always be the net heat flux, (+upward).
945      affects (truncation error) output of natl_box exp.: updated
946    o define the max number of passive tracers in PTRACERS_SIZE.h
947    o start to test mnc routinely in exp0
948    o add sea-ice loading (sIceLoad) as a new forcing field.
949    
950    checkpoint54b_post
951    o add testreport "-j JOBS" option for parallel builds (tested and pretty
952       impressive on Altix and Opteron systems)
953    o diagnostics can now write NetCDF files through the mnc package
954    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
955    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
956    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
957      affects (truncation error) output of lab_sea & natl_box exp.: updated
958    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
959    
960    checkpoint54a_post
961    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
962    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
963    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
964    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
965      + internal_wave (shift in writing cg2d_ini_res)
966    checkpoint54a_pre
967    
968    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
969      - modified verification/lab_sea and natl_box_adjoint accordingly
970    
971    checkpoint54
972    checkpoint53g_post
973    o prepare splitting of thermodynamics: store convect.counter in common block
974    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
975      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
976    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
977    o new parameter "nShapS": allow to treat differently S from T (nShapT)
978    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
979    o restore adjointability
980    
981    checkpoint53f_post
982    o modifications that affect AIM experiment results (update output.txt):
983      - no advection of S at top interface Nr (pkg/generic_advdiff)
984      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
985    o AIM pkg:
986      - include stability function into surf.Flux derivative relative to Tsurf
987      - calculate clear-sky radiation & surface temp. change (for diagnostics)
988    
989    checkpoint53e_post
990    o merged cylindrical coord configuration
991    o added rotating_tank experiment
992    checkpoint53e_pre
993    
994    checkpoint53d_post
995    o faulks upgraded: re-generate output.txt that have changed:
996       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
997    o Added Bryan and Lewis, 1979, vertical diffusivity profile
998    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
999    o added Sadourny discretization of Coriolis
1000      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1001      - re-enabled use of omega3 (useAbsVorticity)
1002    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1003      vector-invariant equations
1004      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1005    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1006      hopefully without new bugs
1007      - still to do: biharmonic friction for non-hydrostatic w
1008    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1009    o regenerated output for global_ocean_ebm (using -ieee)
1010    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1011      of mom_common/
1012      - simple re-arrangement of instructions within computing loop
1013    checkpoint53d_pre
1014    
1015    checkpoint53c_post
1016    o new version of coupler for AIM+thSIce and Ocean models
1017     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1018     - land: change Evaporation of snow
1019     - aim with thSIce: fix bug in snow-precip.
1020    o changes to calc_gw.F
1021     - bug fix for w^2 term near the bottom boundary
1022     - (hopefully) improve the lateral slip boundary condtions for use with
1023        partial/looped cells
1024      - because the bug fix changes two verification experiments anyway (exp5
1025        and plume on slope), change the lateral boundary condition from half slip
1026        to the value of no_slip_sides
1027    o ebm package wasnt quite up to the parallel task. Fixed that.
1028    o Adjoint of EBM package + verification
1029      * TLM OK
1030      * ADM not sufficient accuracy yet (needs further testing)
1031    
1032    checkpoint53b_post
1033    o Commiting new energy balance model to repository
1034      * package is pkg/ebm
1035      * verif. is verification/global_ocean_ebm
1036      * references are in ebm_driver.F
1037    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1038    C        Global thermohaline circulation. Part I:
1039    C        Sensitivity to atmospheric moisture transport.
1040    C        J. Climate 12(1), 71-82
1041    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1042    C        Global thermohaline circulation. Part II:
1043    C        Sensitivity with interactive transport.
1044    C        J. Climate 12(1), 83-91
1045    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1046    C        Destabilization of the thermohaline circulation
1047    C        by atmospheric eddy transports.
1048    C        J. Climate 7(12), 1870-1882
1049    o Will need long integration testing.
1050    checkpoint53b_pre
1051    
1052    o created pkg/mom_common in preparation for variable viscosity code
1053    o renamed and split ini_mnc_io
1054    o pkg/land: only liquid water can diffuse or run-off
1055    o AIM using land: soil wetness availability account for snow
1056    o added printMapIncludesZeros to EEPARMS namelist
1057    
1058    checkpoint53a_post
1059    o restore TAMC compatiility for exf_constants.h
1060      (no usage of _d in .h)
1061    o Additional storing in KPP in an attempt to fix
1062      TAMC problem with adjoint of KPP code.
1063      (no success...)
1064      Identical code works fine with TAF.
1065    o Fixed verification/natl_box_adjoint experiments.
1066      Initial conditions for Experiments 4 and 5 are now
1067      set to "SEAICE_initialHEFF=0", which is more reasonable,
1068      and hence gives results closer to that of Experiment 2.
1069      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1070    
1071    checkpoint53
1072    o stable checkpoint with up to date adjoint
1073      TLM tests only run for 1st grdchk at the moment. Its unclear if
1074      this is a code problem or a problem with resetting code for g_
1075      variables that is being autogenerated wrong.
1076      Otherwise:
1077       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1078       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1079         are both still in chaos following their security messes.
1080    
1081    checkpoint52n_post
1082    o various build (mostly genmake2) changes including:
1083      - ability to build/run more easily within Cygwin and MacOS X
1084      - more complicated Makefiles with a stronger dependence on Gnu Make
1085    o pkg/seaice modifications
1086      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1087        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1088        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1089      - changed proxy for geostrophic velocity and updated
1090        verification/lab_sea/results/* accordingly
1091      - removed ADI dynamic solver from pkg/seaice
1092      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1093        they caused a segmentation fault under certain circumstances
1094      - removed unused field WATR
1095    o bug fix in exf-package:
1096      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1097         now reflect that.
1098    o small fixes in the cal-package:
1099      - set reference date to first of January for the 'model'-calendar
1100      - failing of cal_CheckDate in cal_FullDate now actually results in a
1101        warning
1102    o small modifications in exf-package to increase flexibility:
1103      - change climtempfreeze from a constant to a runtime parameter that
1104        is specified in data.exf_clim (default = -1.9)
1105      - introduce runtime parameter windstressmax (default = 2.0) that is
1106        specified in data.exf
1107    o fix in pkg/thsice:
1108      - update Evap (Tsf changes) to be consistent with Latent heat flux
1109      - maintain snow precipitation unchanged (even if Tsf >=0).
1110     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1111    
1112    checkpoint52m_post
1113    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1114      this does not change any of the results, because myIter=0 in swfrac always
1115      lead to jwtype=2 (the default anyway), but the call makes little sense
1116      as a default
1117    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1118    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1119      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1120    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1121    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1122    o extending useSingleCpuIO option to work with new exch2 I/O format
1123      - old-style, missing-tile I/O is still accessible by defining CPP
1124        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1125    o monitor package can write to NetCDF files and/or STDOUT
1126    o fix re-definition bug in MNC_GRID_INIT_ALL()
1127    o doc/api_reference added
1128      - a framework for building an API Reference Manual using all
1129        the "protex" comments embedded in the code
1130      - see pkg/generic_advdiff, pkg/mnc for examples
1131    o MNC:
1132      - make myThid the last argument for all subroutines
1133      - new default for the grid files: NO halos
1134      - add useMNC and other run-time flags
1135      - separate per-file-group handling of the unlimited dimension
1136      - early initialization of MNC w/ flags read at the eeboot stage
1137        and lookup tables set in initialize_fixed
1138      - write all MNC output to a freshly-created directory
1139    o thermodynamics sea-ice (thsice) is now tested with testreport.
1140    o test exp. advect_cs: use the standard cs32 grid ; update output.
1141    o Added functionality to grdchk:
1142      pick global i,j,k position (or nearest wet) where to perform check.
1143    
1144    checkpoint52l_post
1145    o new land formulation:
1146      a) use ground enthalpy as prognostic variable to ensure exact
1147         energy conservation.
1148      b) account for water temperature and for latent heat of freezing
1149         in all processes (rain, run-off, ground storage)
1150      c) compute surface and ground temperature implicitly.
1151    o aim_v23 modification for new land model:
1152      a) Treat separately land / ocean / sea-ice surface fluxes
1153         to allow implicit computation of land & sea-ice surface temp.
1154      b) add snow precipitation.
1155    checkpoint52l_pre
1156    
1157    o fix problem (when 1 tile is empty) in min/max monitor.
1158    o fix bug in timeAve (u,vZetatave in common block)
1159    o no restoring terms under ice for pkg/seaice
1160    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1161    o bug fix for pkg/seaice pickups
1162    o change MNC call locations and add coordinate attributes
1163    o mask vorticity at the corner ; affects global_ocean.cs output
1164    o fix ini_curvilinear_grid ; test CS experiments with mpi
1165    o aim.5l_cs: modify sea-ice fraction input file ; update output
1166    o exf: Adding simple range check routine for exf fields after read
1167    
1168    checkpoint52k_post
1169    o removed top-level directory "diags"
1170      - we migrated these functions to pkg/timeave a long time ago
1171    o fixed bug introduced in pkg/monitor
1172    o accuracy ctrlprec = 32 insuffient for gradient checks using
1173      averaged fields (I/O via cost_averages)
1174      -> use ctrl.h in active_file*.F to control I/O precision.
1175    o paramter list of CALL ADTHE_MAIN_LOOP
1176    o added initial do_the_model_io to ecco
1177    o set all ...Freq to zero after cost_final
1178      taveFreq, dumpFreq, pChkptFreq
1179    o MAIN and ECCO differentiability restored
1180    
1181    checkpoint52j_post
1182    o fix nchklev in tamc.h for global_ocean...
1183    o Bringing flow and store directives up-to-date
1184    o Really weird thing!
1185      call do_the_model_io from the_main_loop with parameters
1186      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1187      TAF places a faulty re-call of initialise_varia
1188      after cost_final call which should not be there!
1189    checkpoint52j_pre
1190    
1191    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1192      error messages
1193    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1194    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1195      debug output
1196    o modfied mdsio_writefield.F to handle non-global files under exch2
1197    o update AIM Cubed-Sphere exp (aim.5l_cs):
1198      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1199    o update AIM Equatorial Channel exp:
1200      use standard aim_v23 pkg and change the SST fields to be more realistic.
1201    o globalFile now works with exch2
1202    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1203      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1204    o limit timeave output for hi-res integrations
1205    
1206    checkpoint52i_post
1207    o removed CPP_EEOPTIONS.h from verification/*/code
1208    o updated the tiling for global_ocean_pressure
1209    checkpoint52i_pre
1210    
1211    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1212      the old pkg/aim).
1213    
1214    checkpoint52h_pre
1215    o shortened offending lines in exch2_send_rx?.template
1216    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1217    o genmake2: add build & execute test for NetCDF code
1218    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1219      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1220    o added useSingleCPUIO flag to monitor.F and mon_out.F
1221    o added temporary hack for sea-ice dynamics on the cube:
1222      metric terms are ignored and it is assumed that
1223      there is no sea-ice on cube faces 1, 2, 4, and 5.
1224    
1225    checkpoint52f_post
1226    o added exch2 cube routines to pkg/exch2
1227    o modified hs94.cs-32x32x5 to use it
1228    o added new grid files to hs94.cs-32x32x5
1229    checkpoint52f_pre
1230    
1231    checkpoint52e_post
1232    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1233      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1234    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1235      to work with implicit vertical advection and AB ;
1236    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1237    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1238     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1239    checkpoint52e_pre
1240    
1241    o fix bug in impldiff when Nr=1 or Nr=2.
1242    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1243    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1244    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1245      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1246    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1247    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1248    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1249    
1250    checkpoint52d_post
1251    o re-tiled many expts to allow comparison in multi-processor mode
1252      - updated output accordingly
1253      - changed hs94.128x64x5 to use intial T from file rather than use the
1254        random number generator
1255    o add infrastructure in model routines for fizhi and gridalt packages
1256    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1257    o changes to permit hi-res, cubed-sphere, configuration
1258      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1259      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1260      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1261        of surface winds for the cube
1262      (A verification experiment, based on global_ocean.cs32x15, but with
1263       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1264       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1265       complete with example surface forcing files and matlab scripts to look
1266       at the output and compare it with that of global_ocean.cs32x15.)
1267    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1268       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1269       to conform to the common rule.
1270    o check-in the first version of the coupler + interfaces for multi-components
1271       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1272       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1273       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1274       - ocean and atmos. share the same horizontal grid (no interpolation).
1275       - exchanges between component and coupler is done in forward_step
1276    o new verification experiment, cpl_aim+ocn:
1277       coupled ocean - AIM atmosphere on cs32 grid.
1278    
1279    checkpoint52d_pre
1280    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1281    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1282    
1283    checkpoint52c_post
1284    o Fixing OPTIONS files for use of exf:
1285      - ALLOW_ECCO not needed
1286      - ECCO_CPPOPTIONS.h should not be included from
1287        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1288        as has been the case in the past
1289      - All cal/exf related options are currently set in
1290        single header file. Should remain so until we
1291        agree on a consistent new policy.
1292    o Removed all CPP options for cal package.
1293      cal has no more CPP options.
1294    o modified STOREs in GAD_ADVECTION
1295    o corrected key comp. for passkey
1296    
1297    checkpoint52b_post
1298    o new version: "thsice" of thermodynamic sea-ice pkg:
1299     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1300     - modify fluxes but do not change theta directly;
1301     - light cleaning of bulk_force pkg (still needed with thsice).
1302     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1303       + output_thsice.txt to test thsice & bulk_force pkgs.
1304    o put back grid & coriolis monitor output.
1305    checkpoint52b_pre
1306    
1307    o call "do_the_model_io" at the beginning (=> dump initial state)
1308    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1309    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1310      (need info on NUMBER_OF_PTRACERS)
1311    o missing PTRACERS headers in some routines
1312    o default tamc.h in pkg/autodiff supposed to crash
1313      to ensure proper customization
1314    
1315    checkpoint52a_post
1316    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1317      - moved surfaceTendencyTice from pkg/seaice to main code
1318      - subroutine FREEZE_SURFACE now limits only surface temperature
1319        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1320        => new output.txt for global_ocean.cs32x15 & global_with_exf
1321      - keep the old version of FREEZE for backward compatibility;
1322        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1323      - corresponding modifs for TAF directives
1324    o added surface flux output variables to TIMEAVE_STATVARS
1325    o time-averaged output for pkg/ptracers
1326    o fix problem with ECCO-related divided adjoint
1327      snapshot file was missing some ad-variables,
1328      but no warning issued by TAF
1329    
1330    checkpoint52a_pre
1331    o some bug fixes for #undef REAL4_IS_SLOW
1332    
1333    checkpoint52 = ecco_c52_e35
1334    o after testing adjoints of checkpoint51u_post
1335    
1336    checkpoint51u_post
1337    o this is the post-merge tag of the ecco-branch
1338      (needs another clean checkout and re-testing)
1339    o various natl_box_adjoint configs and results
1340      but no input fields
1341    o obcs adjoint not yet merged!
1342    o adding ECCO global 1x1 and 2x2 degree configs
1343    o updated/extended some store directives for seaice
1344    o pkg/ecco now containes ecco-specific part of cost function
1345    o top level routines the_main_loop, forward_step
1346      supersede those in model/src/
1347      previous input data.cost now in data.ecco
1348      (new namelist ecco_cost_nml)
1349    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1350    
1351    checkpoint51t_post
1352    o this is the pre-merge tag of the ecco-branch
1353    
1354    checkpoint51s_post
1355    o cleanup: removed various obsolete #define-s
1356    o pkg/grdchk
1357      - renamed 'ph-grd 3' to 'grad-res'
1358      - merged from ecco-branch
1359        (remaining bug fixes for obcs gradient checks)
1360      - additional high-precision output for testreport
1361        (grep for 'precision_grdchk_result')
1362    
1363    checkpoint51r_post
1364    o cleaned up or removed CPP_OPTIONS.h files
1365    o updated results for some of the tests to reflect the new
1366      optfiles (-ieee: -O0 instead of -O3)
1367    
1368    checkpoint51q_post
1369    o cd_code:
1370      - moved cd_scheme.F -> cd_code_scheme.F
1371      - separate read_checkpoint from cd_code_ini_vars.F
1372      - separated cd_code part from write_checkpoint
1373      - updated AD_SOURCE, generated .flow
1374      - added CD_CODE_VARS.h to the_main_loop
1375      - Moving cd_code specific store dir.s to pkg/cd_code
1376    o ctrl package totally restructured
1377      - pack/unpack now optional and decoupled from
1378        xx_/adxx_ I/O
1379      - ctrl_pack/unpack cleaned
1380        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1381      - confined inclusion of AD_CONFIG.h to where necessary.
1382    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1383    
1384    checkpoint51p_post
1385    o create initial cd_code package
1386      - WARNING: the initialization of fields within packages
1387        is broken because INI_FIELDS (where READ_CHECKPOINT is
1388        called) is called *before* PACKAGES_INIT_VARIABLES.
1389        This seems to be backwards since
1390        1) its important to initially zero the entire field including
1391           the "halo" region
1392        2) zeroing needs to be done *before* reading pickup info
1393           and the pickup call might or might not happen in any
1394           particular run
1395      - this needs an overhaul for R2
1396    o cleanup verification/*/code/GMREDI_OPTIONS.h
1397    o cleanup testreport
1398    
1399    checkpoint51o_post
1400    o bringing AD-related verif's up to date with genmake2
1401      - carbon/
1402      - global_ocean.90x40x15/
1403      - hs.94.1x64x5/
1404      - (front_relax/ )
1405    o (more) consistent directory structure for AD-related verif.'s
1406    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1407    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1408    o bug fix in find_alpha.F for MDJWF:
1409      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1410        change rho -> rho-rhoConst
1411      - replace call find_rho to find_rhonum
1412    o initialisation of rFlx extended to full array (required by TAF)
1413      and shifted to thermodynamics
1414    o removed PTRACERS.h in ptracers routine
1415    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1416    o Correcting initialisations for fVerU, fVerV.
1417    o helping TAF to recognize dependency on kUp for
1418      fVerU, fVerV
1419    o Replacing delZ by delR in pkg/ctrl/
1420    checkpoint51o_pre
1421    
1422    o undid all of cp51 pending some cleanups and discussion
1423    o added the [#include "AD_CONFIG.h"] statement to all files that need
1424       it for adjoint/tl #defines
1425     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1426     o removed tools/genmake since it no longer works
1427    
1428    checkpoint51n_post
1429    o modifications to make FREEZE flux visible to pkg/kpp
1430      - moved surfaceTendencyTice from pkg/seaice to main code
1431      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1432      - subroutine FREEZE now limits only surface temperature
1433        (this means new output.txt for global_ocean.90x40x15,
1434         global_ocean.cs32x15, and global_with_exf)
1435    o added surface flux output variables to TIMEAVE_STATVARS
1436    
1437    checkpoint51n_pre
1438    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1439    o added [#include "AD_CONFIG.h"] to all files that use the following
1440      defines:
1441      - ALLOW_ADJOINT_RUN
1442      - ALLOW_TANGENTLINEAR_RUN
1443      - ALLOW_ECCO_OPTIMIZATION
1444    
1445    checkpoint51m_post
1446    o incorporating changes to get TAMC/TAF working in genmake2
1447      - added new TAMC/TAF targets to the Makefile
1448      - various cleanups related to package handling
1449      - these changes should have no impact on the forward model
1450    
1451    checkpoint51l_post
1452    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1453     - faster algorithm for cal_addtime.F
1454     - higher precision arithmetic, where needed
1455     - pkg/exf *startdate variables changed from calendar date to
1456       model integration time
1457    
1458    checkpoint51l_pre
1459    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1460    o enable to apply restoring on S & T only in a latitude band.
1461    o update output (external_forcing_surf modif. change truncation errors)
1462       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1463    
1464    checkpoint51k_post
1465    o change default to: useNHMTerms=.FALSE.
1466     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1467       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1468     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1469        exp1, ideal_2D_oce
1470     - change data file of oceanic exp (leave the results unchanged for now)
1471       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1472    o set gravitySign automatically according to the vertical coordinate used
1473      (and change sign: back to "logical" value: +1 when R increases downward)
1474    o added an include barrier to the default CPP_OPTIONS.h and
1475      removed the #include "PACKAGES_CONFIG.h" from it
1476    o fix a bug in mom_fluxform (from chk51j_post)
1477    
1478    checkpoint51j_post
1479    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1480    o adjusted some flow directives (dynamics, thermodynamics)
1481    o added cubed-sphere case to test cost function
1482    o heckpoint_lev?_directives.h now include
1483      pkg-specific directives, whenever those are enabled.
1484    o Moving pkg-specific flow directives to corresponding pkg
1485      Moving pkg-specific differentiation list to corresponding pkg
1486      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1487      ---> conventions are
1488           - pkg_ad.flow
1489           - pkg_ad_diff.list
1490           - pkg_ad_check_lev?_dir.h
1491    
1492    checkpoint51i_post
1493    o merge of the branch-genmake2
1494      - knowingly breaks the older genmake
1495      - automatic generation of all ALLOW_${PKG_NAME} defines
1496      - new testreport supersedes older testscript
1497    o large number of package inclusion and header cleanups
1498    checkpoint51i_pre
1499    
1500    o new output for adjoin of global ocean vector invariant
1501    o fix for checkpoint of thermodynamic seaice and bulk_force
1502    o Steph gchem various cleanups
1503    
1504    checkpoint 51h_pre
1505    o fixed some single quotes
1506    o modify gchem pkg to be more versatile
1507    o modifications to clean up dic pkg
1508    o add pkg/cfc
1509    
1510    checkpoint51g_post
1511    o provide links for ARPACK and ADM*TLM
1512    o start removing verification/vero/
1513    o update AD-related stuff
1514      (in particular some IF-statements in model/src/ routines)
1515    o adding to verification/global_ocean.90x40x15/ adjoint of
1516      vector invariant setup
1517    
1518    checkpoint51f_post
1519    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1520    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1521      of tracer Green's fucntions for ocean inversion project.
1522    
1523    checkpoint51f_pre
1524    o Added on-the-fly spatial interpolation capability
1525        "USE_EXF_INTERPOLATION" to pkg/exf.
1526      - This is a temporary Cartesian-grid hack until
1527        the super-duper ESMF coupler becomes available.
1528      - See verification/global_with_exf/README for usage example.
1529      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1530        flags and modified pkg/seaice accordingly.
1531    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1532        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1533        non-local transport term.
1534    
1535    checkpoint51e_post
1536    o pkg/mom_vecinv:
1537      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1538      - add time-ave diagnostic of vorticity advection.
1539    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1540    o atmospheric geopotential: - include water vapor effect;
1541                                - use p^kappa in p* scaling.
1542    o land pkg: read initial state from files.
1543    o AIM : add stratospheric drag in the upper level
1544    
1545    checkpoint51d_post
1546    o change function ILNBLNK (=> last non-blank char.) to return zero
1547      (instead of the string length) when the string. char is empty
1548    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1549    o modif's to restore TAMC compatibility
1550      - avoid "_d" constructs in PARAMETER declarations
1551      - avoid interrupting lines by comment lines
1552    o Use cluster local disks for purely local I/O
1553      vs. globally visible disks needed for ctrl stuff
1554      (merged from ecco-branch)
1555      - new active_file_loc... and mdsio_..._loc routines
1556      - affected packages: autodiff, ctrl, grdchk, mdsio
1557    
1558    checkpoint51c_post
1559    o introducing integer flag debugLevel
1560      - debLevZero: suppress all output
1561      - debLevA: standard
1562      - debLevB: equivalent to current debugMode=.TRUE.
1563    o introducing pathname variable mdsioLocalDir for mdsio
1564      that can be specified at runtime
1565      (relevant for cluster I/O to local disk)
1566    `
1567    >>>checkpoint51b_post
1568    adjoint of ptracers
1569    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1570    o extended state in checkpoint_lev?, etc.
1571    o alternative ctrl/cost with tr1 or ptracer
1572    o new comlev1_bibj_ptracers
1573    o new ptracers.flow
1574    o made ptracers_forcing same as external_forcing_s
1575    o added verification for adjoint with ptracers
1576      - adm. grdchk fail so far
1577      - tlm. grdchk OK
1578      - checked tapelev/comlev recomputations: OK
1579    <<<checkpoint51b_pre
1580    
1581    checkpoint51a_post
1582    o added code for biogeochemistry package
1583      - new pkgs: dic, gchem
1584      - new subroutine in ptracers
1585    o modify code for biogeo packages
1586      - in model/src and pkg/ptracers
1587    
1588    checkpoint51
1589    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1590      - autodiff, ctrl, exf, grdchk, seaice
1591      kept separate packages
1592      - cost, ecco, obcs
1593    o updating verification/internal_wave, verification/lab_sea
1594      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1595    
1596    checkpoint50i_post
1597    o Preparing next differentiable checkpoint and sync
1598      of MAIN vs. ecco-branch
1599      - 1st step: this one is differentiable
1600      - 2nd step: next(! not this) checkpoint will have updated packages
1601                  from ecco-branch)
1602    
1603    checkpoint50h_post
1604    o new package "land": provide surface BC for AIM.
1605    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1606    o AIM: use true log-P extrapolation for near surface temp (= as in
1607        F.Molteni paper) ; update aim.5l_cs output.
1608    o New variable in PARM03 for more flexible pickups
1609    o somewhat cleaned package initialisation sequence for
1610      ctrl/ cost/ ecco/ in packages_... routines
1611    
1612    checkpoint50g_post
1613    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1614      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1615      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1616        made the default because of faster convergence than ADI
1617    
1618    checkpoint50f_post
1619    o exf totally restructured
1620      - replaced all exf_set_ routines by one generic exf_set_gen.F
1621        and made sure it's still differentiable
1622      - split exf_getffields.F into new exf_bulkformulae.F
1623      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1624      - updated adjoint/makefile and relevant verif. accordingly
1625    
1626    checkpoint50f_pre
1627     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1628          + change Evap over land. (update aim.5l_cs output)
1629     o added missing .cvsignores and made uniform across expts
1630     o changed configuration of tidal_basin_2d expt
1631     o added pkg/debug functions for tracing code in fatal crashes
1632     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1633     o new fn in pkg/monitor to stop model if solution grows too big
1634     o removed lots of single quotes from comments
1635    
1636    checkpoint50e_post
1637    o make KPP work with PTRACERS
1638     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1639       nearly a copy of kpp_transport_s
1640     - there is no analogue to SurfaceTendencyS, so I have to use
1641       gPtr(of the surface layer) instead
1642    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1643    checkpoint50e_pre
1644    
1645    checkpoint50d_post
1646    o change kpp output from multiple-record state files to single-record state
1647      files analogous to write_state.F
1648    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1649      analogous to the cg2d-related output.
1650    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1651      so that writing to internal file fn (with length 512) fails.
1652    checkpoint50d_pre
1653    
1654    checkpoint50c_post
1655    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1656    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1657    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1658    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1659    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1660    
1661    checkpoint50c_pre
1662    Merging from release1_p13:
1663    o bug fix for pkg/seaice dynamic solver
1664    o Added SEAICE_initialHEFF to pkg/seaice
1665    
1666    checkpoint50b_post
1667    o store u*,v* in gU,V instead of in guNm1,gvNm1
1668    o in order to put the momForcing out of the Adams-Bashforth:
1669      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1670      to timestep.F
1671    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1672    o re-generate output for highly sensitive test-exp:
1673       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1674    
1675    checkpoint50b_pre
1676    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1677    o corrected CPP option mismatch in exf_Bulk... functions for case
1678      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1679    
1680    checkpoint50a_post
1681    o Bug fix for merging between c50 and KPP.
1682      ikey was passed from thermodynamics to kpp_calc via
1683      common block rather than being recomputed in kpp_calc,
1684      in contradiction with new key itdkey.
1685      New key ikppkey created, and tamc.h headers updated.
1686    
1687    checkpoint50
1688    - 2nd step of merge with ecco-branch:
1689      merge changes in ecco-branch back into main trunk
1690    - bug fix in find_alpha
1691    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1692    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1693    - merged some sliced AD support routines
1694    
1695    checkpoint49
1696    merged from ecco-branch:
1697    o exf:
1698      - Enable initialisation of forcing fields to constant
1699        (runtime) values.
1700      - in exf_getffields.F
1701        Reduce i-/j-loop to interior domain, discarding overlaps.
1702        That also fixes wrong TAF-key computations for key_1, key_2
1703        with bulf formulae.
1704      - exf_init.F modify #ifdef for exf_init_evap
1705      - exf_getffieldrec.F, ctrl_getrec.F
1706        The following INT-usages are not safe:
1707          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1708          fldcount = int(fldsecs/fldperiod) + 1
1709        and were modified.
1710    o autodiff: checkpoint_lev...
1711      - updated storing for bulk formulae (some arrays were missing)
1712      - added state for seaice package
1713      - synchronized with main branch
1714    o DIVA:
1715      Modif.s in
1716      - the_main_loop.F
1717      - the_model_main.F
1718      and added cost_final_restore.F cost_final_store.F
1719      o With these changes, it is possible to fully separate
1720        the first forward run to compute the cost function (mdthe_main_loop)
1721        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1722        into separate model executions.
1723        This enables better tuning of DIVA to given queue sizes.
1724      o Loss of cost function value in consecutive DIVA runs is
1725        fixed by storing to 'costfinal' file.
1726      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1727        beginning/end of adjoint integration is accounted for.
1728      The current changes apply to TAF-1.4.26.
1729      TAF has one remaining bug, requiring one manual change
1730      (see MITgcm manual).
1731    o cal: synchronized between MAIN and ecco-branch
1732    
1733    checkpoint48i_post
1734    o Changes to restore differentiability of code w.r.t. previous tag
1735      (mostly adding new routines to make list and replacing
1736      pressure by totPhiHyd).
1737    o Updated and merged grdchk package
1738      - has both ADM and TLM checks
1739      - works for single- and multi-proc.
1740      - output cleaned
1741      - worked successfully for parallel DIVA
1742    o genmake:
1743      - Adding -platform=SP4
1744      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1745    o Modif. for DIVA:
1746      ctrl_unpack should not be called in intermediate DIVA interval.
1747      (similar thing would apply for active files such as
1748      tbar, sbar, psbar, which should not be reinitialised;
1749      only relevant for ecco-branch)
1750    
1751    checkpoint48h_post
1752    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1753    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1754    o Added SEAICE_initialHEFF to pkg/seaice
1755    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1756    
1757    checkpoint48g_post
1758    --- EOS:
1759    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1760      store total Potential in totPhyHyd for diagnostics & EOS.
1761    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1762    --- Pressure/geopotential gradient:
1763    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1764    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1765      ( changes results of global_ocean_pressure )
1766    o NLFS + z-coord.: add eta*Rho' contribution.
1767    o accurate phiHyd when using interface-W at the middle between 2 centers
1768     ( changes results of ideal_2D_oce )
1769    o includes r* 2nd term in potential gradient.
1770    
1771    checkpoint48f_post
1772    Merging from release1_p12:
1773    o Modifications for using pkg/exf with pkg/seaice
1774      - improved description of the various forcing configurations
1775      - added basic radiation bulk formulae to pkg/exf
1776      - units/sign fix for evap computation in exf_getffields.F
1777      - updated verification/global_with_exf/results/output.txt
1778    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1779      (SBO) core products, including oceanic mass, center-of-mass,
1780      angular, and bottom pressure (see pkg/sbo/README.sbo).
1781    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1782      to avoid negative values in shallow regions.
1783      - updated verification/natl_box/results/output.txt
1784      - updated verification/lab_sea/results/output.txt
1785    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1786    o Added useSingleCpuIO option (see PARAMS.h).
1787    o Updated useSingleCpuIO option in mdsio_writefield.F to
1788      work with multi-field files, e.g., for single-file pickup.
1789    o pkg/seaice:
1790      - bug fix in growth.F: QNET for no shortwave case
1791      - added HeffFile for specifying initial sea-ice thickness
1792      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1793    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1794      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1795    o pkg/seaice:
1796      - adjoint-friendly modifications
1797      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1798    
1799    checkpoint48e_post
1800    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1801    o dynamics: change definition of computational domain & adapt mom_fluxform
1802      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1803    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1804        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1805        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1806        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1807        inverted_barometer solid-body.cs-32x32x1
1808      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1809    
1810    checkpoint48d_post
1811    o in preparation for r*:
1812     a) use pre-computed gradient of hydrostatic potential:
1813        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1814     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1815        => affects results of glob_oce_pressure (different truncation error)  
1816      update output.txt of ideal_2D_oce & global_ocean_pressure
1817    
1818    checkpoint48d_pre
1819    o in preparation for r*:
1820      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1821      pass the 2 comp. of the grad. as arguments to momentum S/R.
1822      but for the moment, only used if it does not change the results.
1823    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1824    
1825    checkpoint48c_post
1826    Modifications in treatment of initial flux forcing controls
1827    to avoid extra storing of flux fields.
1828    
1829    checkpoint48c_pre
1830    o Added tidal_basin_2d experiment (currently 1D!)
1831    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1832    
1833    checkpoint48b_post
1834    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1835     (modification to pressure gradient not yet implemented)
1836    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1837      (for U & V) that are used for vertical advection of momentum.
1838    
1839    checkpoint48a_post
1840    o In preparation for r*, use temp. array to compute vertical transport
1841       in flux-form momentum pkg. => change results of few test-exp.
1842      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1843                        lab_sea, natl_box & plume_on_slope
1844    
1845    checkpoint48
1846    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1847    
1848    checkpoint47j_post
1849    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1850    o moved adexch from forward_step to addummy_in_stepping
1851    o added exch in ctrl_map_...
1852    o aveFreq.=0. at end of cost_final to avoid overwrite in
1853      reverse checkpointing loop
1854    o Yet more changes in gmredi:
1855      * adgmredi_calc_tensor
1856        avoiding all recomputation of gmredi_slope_limit
1857      * adgmredi_x/y/rtransport
1858        added flag for excessive storing to avoid recomp. of
1859        u/v/rtans, dTdx/y/z
1860        -> this is not really necessary and very memory-consuming
1861      * adgmredi_slope_psi:
1862        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1863      * gmredi_slope_limit
1864        re-activated full calculation of taperfct for case 'ac02'
1865    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1866    
1867    checkpoint47i_post
1868    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1869    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1870      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1871    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1872    o gmredi: fix few bugs.
1873    
1874    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1875    This will be a good checkpoint to plug into the ecco-branch.
1876    o few modif.'s to get latest version adjointed
1877      (mainly kick out code in ini_linear_phisurf)
1878    o modif's to run adjoint with exactConserv
1879    o case GM_BOLUS_ADVEC should be cleaned
1880      S/R gmredi_slope_psi should be cleaned
1881    o verification/carbon now has exactConserv=.TRUE.
1882    
1883    checkpoint47g_post
1884    o time-average AIM output: becomes independent from statvars time-average
1885      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1886    o After TAF bug fix:
1887      Tested adjoint of gmredi package.
1888      Tests were done with checkpoint47 rather than with latest
1889      checkpoint47f_post since the latter is broken for the adjoint
1890      verification/carbon/ contains both ADM and TLM gradient checks.
1891    Here they are, before they get changed/lost/stolen.
1892    Mostly modif.'s to fix numerical sensitivities.
1893    Gradient checks OK for
1894    - GM_taper_scheme:
1895      * clipping
1896      * ac02
1897      * linear
1898      * glw91
1899      * dm95
1900      * ldd97
1901    - GMREDI_OPTIONS:
1902      * GM_VISBECK_VARIABLE_K
1903      * GM_NON_UNITY_DIAGONAL
1904      * GM_EXTRA_DIAGONAL
1905      * GM_BOLUS_ADVEC
1906    in conjunction with data.gmredi parameters to be checked in
1907    in a few minutes under verification/carbon/code/
1908    
1909    checkpoint47f_post
1910    Merging from release1_p10:
1911    o modifications for using pkg/exf with pkg/seaice
1912      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1913        and SEAICE_EXTERNAL_FLUXES
1914      - pkg/exf CPP options EXF_READ_EVAP and
1915        EXF_NO_BULK_COMPUTATIONS
1916      - usage examples are Experiments 8 and 9 in
1917        verification/lab_sea/README
1918      - verification/lab_sea default experiment now uses
1919        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1920    
1921    checkpoint47e_post
1922    o created a tag prior to creating a branch
1923    
1924    checkpoint47d_post
1925    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1926      at the bottom boundary had an erroneous half slip boundary condition
1927    o added bottom drag and no slip boundary condition capabilities to
1928      oceanic pressure coordinates code
1929    o added new verification experiment global_ocean_pressure, this experiment is
1930      also described in the tutorial section of the manual
1931    checkpoint47d_pre
1932    
1933    checkpoint47c_post
1934    o Added a verification experiment for a global cubed-sphere ocean run
1935      -  verification/global_ocean.cubed32x32x30
1936      -  uses pkg/therm_seaice and pkg/bulk_forcing
1937    
1938    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1939    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1940      when using P-coordinate; only implemented for atmospheric config.
1941    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1942      NOTES: requires option NONLIN_FRSURF to be "#define".
1943    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1944    
1945    checkpoint47b_post
1946    Merging from release1_p9:
1947    o pkg/seaice
1948      - removed GOTO's and added taf directives
1949      - double precision constants to reduce the g77 (Linux)
1950        to F77 (SGI) differences reported in release1_p8
1951    o tools/genmake
1952      - added SGI options
1953    o verification/testscript
1954      - updated to that of checkpoint47a_post
1955    o verification/global_ocean.90x40x15/input/eedata
1956      - modified for SGI f77 compatibility
1957    o verification/lab_sea
1958      - added description of sea-ice model
1959      - added missing matlab routines
1960      - added test of thermodynamics parallelization
1961    
1962    checkpoint47a_post
1963    o new pkg: aim_v23
1964     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1965       for now, keep the same surface forcing as before.
1966     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1967     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1968     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1969    o add diagnostic of surface correction term in monitor output
1970    
1971    o bulk_force and therm_seaice
1972    - Two packages:  bulk_force (Bulk forcing)
1973      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1974    - Earlier integration from Stephaine Dutkiewicz
1975      and Patrick Heimbach.
1976    - Two ifdef statements for compile time,
1977       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1978    
1979    checkpoint47
1980    differentiable version of checkpoint46n_post
1981    o bug fix in quasihydrostaticterms
1982    o * "clean" adjoint code (in terms of extensive recomputations)
1983        can now be obtained for all GMREDI options (i.e. for
1984        - GM_VISBECK_VARIABLE_K
1985        - GM_NON_UNITY_DIAGONAL
1986        - GM_EXTRA_DIAGONAL
1987        - GM_BOLUS_ADVEC )
1988      * However, wrong gradient check problem remains unsolved.
1989      * New CPP options have been introduced for different
1990        tapering schemes
1991    o external_fields_load now part of differentiation list
1992    o pressure needs multiple storing;
1993      would be nice to have store_pressure at beginning or
1994      end of forward_step, e.g. by having phiHyd global (5-dim.)
1995      (NB: pressure is needed for certain cases in find_rho,
1996      which is also invoked through convective_adjustment).
1997    o recomputations in find_rho for cases
1998     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1999    o #define ATMOSPHERIC_LOADING should be differentiable
2000    o ini_forcing shifted to begining of initialise_varia
2001    o Incorporating QNVS line search routines into MITgcm
2002      (this is separate code, and therefore not under pkg)
2003      lsopt/, optim/
2004    o Updated verification/carbon/
2005      - #define GM_VISBECK_VARIABLE_K
2006      - GM_taper_scheme    = 'ldd97'    
2007    
2008    checkpoint46n_post
2009    Merging from release1_p8:
2010    o verification/natl_box:
2011      updating new external_fields_load routine
2012    o New package: pkg/seaice
2013      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2014      The sea-ice code is based on Hibler (1979-1980).
2015      Two sea-ice dynamic solvers, ADI and LSR, are included.
2016      In addition to computing prognostic sea-ice variables and diagnosing
2017      the forcing/external data fields that drive the ocean model,
2018      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2019      The implied surface heat flux is then stored in variable
2020      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2021      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2022      non-local transport term.  Because this call precedes model
2023      thermodynamics, temperature under sea-ice may not be "exactly" at
2024      the freezing point by the time theta is dumped or time-averaged.
2025      N.B.: fairly large differences in accuracy occur across
2026            different platforms/compilers; comparison between
2027            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2028            generated output gives:
2029       T           S           U           V
2030      C D M    c        m  s        m  s        m  s        m  s
2031      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2032      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2033      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2034    
2035      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2036    o GAD:
2037      - generated new common blocks to account for call of
2038        same gad routines with differing traceridentities
2039        (needed to modify tracerIdentity indices in GAD.h)
2040      - generated separate common blocks for case useCubedSphereExchange
2041        (Department of Futurology)
2042      - parameter lists to gmredi_?transport: added tracerIdentity
2043      - added new key indices to tamc.h
2044    o external_fields_load:
2045      - added this routine to TAF list
2046      - needed to make some common blocks global and additional storing
2047        along the same lines as exf package (checkpoint_lev?_directives.h)
2048    o exf:
2049      updated external forcing package
2050      - bug fixes carried over from ecco-branch
2051        (missing OBCS_OPTIONS.h in two routines)
2052      - enable easy to use "no forcing".
2053      - added exf I/O for atmospheric loading
2054      - added exf I/O for runoff data
2055      - transfered scaling between exf <-> MITgcm to exf namelist
2056    o Adding new verification experiment global_with_exf.
2057      This verification experiment is almost identical to the
2058      global_ocean.90x40x15 experiment, except that it uses
2059      the exf (and cal) package instead of the
2060      external_fields_load routine (cf README file).
2061    
2062    checkpoint46m_post
2063    o modified testscript to return -- when there are no lines of "%MON" output
2064    o added new flag "quasiHydrostatic" for QH mode
2065      and new routine quasihydrostaticterms()
2066    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2067      New routine: mom_u_coriolis_nh()
2068    o fixed sign of non-hydrostatic metric terms in u and v equations.
2069      Depend on correct sign of gravitySign.
2070    o added work.pc* to .cvsignore in aim directories using ifc
2071    o introduced flag for controllin non-hydrostatic metric terms
2072    o removed gravitySign from PARM04
2073    o switched to g77/ifc from pgf77 in aim experiments
2074    
2075    checkpoint46l_post
2076    o made convective adjustment work with pressure coordinates:
2077     - changed the direction of k-loop in convective_adjustment.F for the
2078       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2079     - adjusted the reference pressure k-index in convective_adjustment.F
2080     - adjusted the convection condition in convect.F (in analogy to
2081       calc_ivdc.F)
2082     - convective_adjustment no longer computes anything on the halos
2083     - removed the warnings about negative salinity from find_rho.F and
2084       find_alpha.F; instead the new routine look_for_neg_salinity, called
2085       at the beginning of find_rho, find_alpha, and find_beta, does a
2086       check of the entire slice, if CPP-option
2087       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2088    checkpoint46l_pre
2089    
2090    checkpoint46k_post
2091    o fixed the verification/global_ocean.90x40x15 experiment:
2092     - new bathymetry (the world according to A., JMC, and M.)
2093     - new initial fields and forcing fields (*.bin files)
2094     - new POLY3.COEFFS (for the next release one should switch to a full
2095       equation of state: JMD95P or MDJWF)
2096     - fixed several errors and redundancies in the data file
2097     - experiment uses looped cells
2098     - added matlab directory with diagnostic scripts for plotting of output
2099    
2100    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2101     - read AIM physics parameters from a file (data.aimphys)
2102     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2103    
2104    checkpoint46j_post
2105    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2106    o move wVel computation at the end of the time step, in S/R integr_continuity
2107    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2108    o update timeave pkg for wVel diagnostic.
2109    checkpoint46j_pre
2110    
2111    checkpoint46i_post
2112    o Clean up AIM package (and keep the results unchanged):
2113      include CPP_OPTION and use IMPLICT NONE in all routines ;
2114      declare all the variables _RL ; use _d 0 for all numerical constants.
2115      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2116    
2117    checkpoint46h_post
2118    o cleaned up the use of rhoNil and rhoConst.
2119      - rhoNil should only appear in the LINEAR equation of state, everywhere
2120        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2121        and the dynamical equations are all divided by rhoConst
2122    o introduced new parameter rhoConstFresh, a reference density of fresh
2123      water, to remove the fresh water flux's dependence on rhoNil. The default
2124      value is 999.8 kg/m^3
2125    o cleanup up external_forcing.F and external_forcing_surf.F
2126      - can now be used by both OCEANIC and OCEANICP
2127    checkpoint46h_pre
2128    
2129     Added code to convert surface volume flux (fresh water) into
2130     a mass flux when using P coordinates in the ocean (OCEANICP).
2131     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2132    
2133    checkpoint46g_post
2134    o Include a new diagnostic variable phiHydLow for the ocean model
2135      - in z-coordinates, it is the bottom pressure anomaly
2136      - in p-coordinates, it is the sea surface elevation
2137      - in both cases, these variable have global drift, reflecting the mass
2138        drift in z-coordinates and the volume drift in p-coordinates
2139      - included time averaging for phiHydLow, be aware of the drift!
2140    o depth-dependent computation of Bo_surf for pressure coordinates
2141      in the ocean (buoyancyRelation='OCEANICP')
2142      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2143        Theta, Salinity, and Pressure in the parameter list. This routine is
2144        presently contained in find_rho.F. This routine does not give the
2145        correct density for 'POLY3', which would be a z-dependent reference
2146        density.
2147    o cleaned up find_rho
2148      - removed obsolete 'eqn' from the parameter list.
2149    o added two new verification experiments: gop and goz
2150      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2151    checkpoint46g_pre
2152    
2153    checkpoint46f_post
2154    o Enable tangent linear (forward mode) gradient checks:
2155      - extended active file handling to g_... files
2156      - added TANGENT_SIMULATION to theSimulationMode
2157      - extended grdchk package accordingly
2158    o added tangent linear setup in verification/carbon/code_ftl
2159    o added adjoint setup in verification/front_relax/code_ad
2160    
2161    checkpoint46e_post
2162    o Added new equation of state -> MDJWF
2163      - EOS of McDougall et al., 2002, JAOT, submitted
2164      - caveat: the equation of state is only valid for a smaller (more
2165        realistic?) range of values than JMD95P/Z and UNESCO
2166      - added masks to the calculation of pressure in store_pressure
2167      - added more check values for density in check_eos (ini_eos.F), some of
2168        the old check values are out of the range of the MDJWF-eos, so don't
2169        expect perfect matches for those
2170    checkpoint46e_pre
2171    
2172    checkpoint46d_post
2173    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2174      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2175      case of pressure coordinates. eosType='JMD95Z' in
2176      combination with buoyancyRelation='OCEANICP' now causes an error.
2177    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2178      in find_alpha/beta.
2179    checkpoint46d_pre
2180    
2181    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2182      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2183    
2184    checkpoint46c_post
2185    o Changes necessary for ocean in p-coordinates
2186     -  Added new buoyancy relation = 'OCEANICP'
2187     -  Added new parameters = gravitySign (this used to be contained inside
2188        the factor dRdZ which I added when we first switched to R coordinates).
2189     X GM/Redi is not compatible (yet)
2190     X bottom drag and no-slip need to be debugged.
2191    checkpoint46c_pre
2192    
2193    checkpoint46b_post
2194    o Added new equation of state -> JMD95Z and JMD95P
2195      - EOS of Jackett and McDougall, 1995, JAOT
2196      - moved all EOS parameters into EOS.h
2197      - new routines ini_eos.F, store_pressure.F
2198    o Added UNESCO EOS, but not recommended because it requires
2199      in-situ temperature (see JMD95)
2200    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2201      unesco.f to be used with POLY3
2202    checkpoint46b_pre
2203    
2204    checkpoint46a_post
2205    o Added (atmospheric) pressure loading
2206      - new field in FFIELDS.h, etc...
2207      - new cpp flag ATMOSPHERIC_LOADING
2208    o Changed hFacC to _hFacC in calc_phi_hyd.F
2209    o Added SHORTWAVE_HEATING to some files for consistency
2210    checkpoint46a_pre
2211    
2212    checkpoint46
2213    further merges from release1_p5
2214    o new ctrl package
2215      - adopted from ECCO environment to enable optimization
2216      - added Eliassen Palm fluxes to controls
2217    o added Eliassen Palm flux controls to gradient check package
2218    o cost package
2219      - Compatible with new ctrl package
2220      - added Eliassen Palm cost hooks
2221      - modif's of existing cost functions
2222    o Adjoint-related bug fixes in kpp:
2223      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2224      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2225    o autodiff package
2226      - flow directives:
2227        + new for S/R do_the_model_io
2228        + enhanced for S/R checkpoint
2229        + new gmredi.flow
2230      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2231        disable adcommon.h/g_common.h by default.
2232      - fixed problem for adjoint of global_max
2233    o modified verification/carbon/
2234    o New setup for adjoint of global_ocean
2235    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2236    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2237    o incorporated hooks for sponge layer code (external_forcing.F)
2238    
2239    checkpoint45d_post
2240    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2241    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2242      (affects plume_on_slope "cg2d" output)
2243    o add new parameter deltaTfreesurf for free-surface time stepping
2244    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2245    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2246    o change phiMin in exp1 (to agree with documentation)
2247    o add new flags:
2248     - T,S forcing inside/outside Adams-Bashforth
2249     - turn off temp,salt advection and/or forcing
2250     - for each tracer, define internal flag for multiDimAdvection & A-B
2251    o monitor: change definition of KE to check conservation of Energy
2252    
2253    checkpoint45c_post
2254    o Removed f90 comments ("!")
2255    o Modified initialisations to enable exf package for MITgcm
2256      (without invoking ECCO_PACKAGE).
2257    o modifications to gradient check package (Martin Losch)
2258      - enable centered differences
2259      - modified format of standard output
2260    
2261    checkpoint45b_post
2262    o cleaned exchange calls in cg2d
2263    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2264    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2265      to configure barotropic setup (Martin Losch)
2266    o moved some initialisations within bi,bj loop in dynamics
2267      (TAF flow dependency)
2268    o in initialise_varia, moved call packages_init_variables
2269      before convective_adjustment_init
2270      (corresponding adjustment of TAF tape initialisation).
2271    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2272    
2273    checkpoint45a_post
2274    o compute Rho over the whole domain (extend iMin,jMin indices)
2275    o specific exchange for X-slice domain (case Ny=1)
2276    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2277    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2278    
2279    checkpoint44h_post = checkpoint45
2280    o Fix to restore differentiability:
2281      place at which packages_init_variables is called in
2282      initialise_varia is crucial for reverse control flow.
2283    o modifications in GMRedi to enable stable adjoint
2284      (corresponding modif's in thermodynamics, dynamics)
2285    o added missing hook for sponge layer code in external_forcing
2286    o modified test cost functions
2287    o storing in gad_advection (plus removal of write(0,*)!
2288    o missing headers TR1.h added in convective_adjustment routines
2289    o errorMessageUnit set non-equal zero in eeboot
2290      (conflict on some platforms, e.g. IBM SP3)
2291    o modified carbon verif.
2292    
2293    checkpoint44h_pre
2294    o vertical grid option: allow to put the Interface at the middle between
2295      2 cell-centers ; replace delZ in pkg/kpp by drF.
2296    o GM Advective form: Tracers are advected using the residual transport (=
2297      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2298    
2299    checkpoint44g_post
2300    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2301      results) ; ifdef missing in thermodynamics.F
2302    
2303    checkpoint44f_pre,checkpoint44f_post
2304    o added PTRACERS package
2305      This allows an arbitrary number of passive tracers to be integrated
2306      forward simultaneously with the dynamicaly model.
2307      + Implemented so far:
2308        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2309        - I/O and checkpointing
2310        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2311      + Not implemented so far:
2312        - KPP
2313        - OBCS
2314      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2315        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2316        line in data.pkg.
2317      + This package is disabled by default since it increases storage.
2318    
2319    
2320    o testscript: added -cleanup option
2321    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2322                 b) enable to filter 2D fields.
2323    
2324    checkpoint44e_pre,post
2325    o re-wrote convective adjustment to use pre-calculated weights
2326      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2327      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2328      Original calls to convect() still in place.
2329    
2330    chkpt44d_pre,post
2331    o added missing EXCLUDE_MONITOR flags
2332    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2333      (incompatible typ in MIN/MAX expressions caused problems
2334      on IBM SP3)
2335    o in genmake added variable MAKEDEPEND
2336      plus resetting for case SunOS
2337    o added timer_stats.c routine for IBM SP3
2338    o removed variables in dynamics
2339    !!! I forgot to create tag chkpt44d_pre !!!
2340    !!! But chkpt44d_pre = chkpt44c_post    !!!
2341    
2342    o real fresh water flux implemented with non-linear free-surface.
2343    
2344    chkpt44c_pre,post
2345    o few fix (mask in shap_s2, EmPmR in external_field_load,
2346      USE_NATURAL_BCS in solve_for_P);
2347    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2348    
2349    checkpoint44b_pre/_post
2350    o merge of relevant stuff from the ecco-branch:
2351      - genmake: removed $S64 overwrite for case SunOS
2352      - pkg/exf: update and corrections for field swapping and obcs
2353      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2354                  harmonized between ECCO and MITgcm
2355      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2356                      updated checkpointing_lev... lists for obcs
2357      - model/src: minor changes in forward_step, plot_field
2358                   added directive for divided adjoint in the_main_loop
2359      - pkg/mdsio: added mdsio_gl_slice
2360    
2361    o check parameters & config (chkpt44a_pre,post)
2362    o OBC and NonLin_FrSurf.
2363    
2364    checkpoint44
2365    o fix bug in mom_vi_del2uv
2366    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2367    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2368    o update AIM experiments (NCEP input files)
2369    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2370    o added some stuff for AD
2371    
2372    checkpoint43
2373    o added two new advection tests
2374    o added global 4x4 degree ocean test
2375    o added test of H&S94 with free surface on cube
2376    o some final mods for gradient check, adjoint,...
2377    
2378    checkpoint42
2379      Fixed AD-related problems:
2380    o Store directives up-to-date with re-arranged Adams-Bashforth
2381      (mainly thermodynamics.F)
2382    o New store directives for multi-dim. advection schemes
2383      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2384      * new common block and key passkey
2385      (mainly gad_advection.F)
2386    o Modified store directives for split of dynamics/thermodynamics
2387      for the case ALLOW_KPP
2388    o Cleaned argument list for timestep_tracer.F
2389    
2390    checkpoint41
2391    o re-formatted/added comments in prologues of key subroutines
2392      to work with protex
2393    
2394  checkpoint40  checkpoint40
2395  o moved calc_gs, calc_gt and calc_tr1 back to model/src  o moved calc_gs, calc_gt and calc_tr1 back to model/src
2396  o added FLT (floats) package from Arne along with demo. experiment  o added FLT (floats) package from Arne along with demo. experiment

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