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revision 1.23 by adcroft, Mon Aug 2 15:39:41 1999 UTC revision 1.605 by mlosch, Tue Feb 7 11:48:22 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 add a new package shelfice which enables us to model the circulation
8      underneath shelf-ice with draughts of hundreds of meters.
9     - works
10     - to do: + include improved thermodynamics
11              + check whether kSurfC (from model/inc/SURFACE.h) can be used
12                instead of new field kTopC
13              + can we use topoFile, Ro_surf and existing code in ini_depth.F
14                instead of new field R_shelfIce and new code in ini_depth.F
15                and ini_mask_etc.F?
16    o seaice pkg:
17     - add a cpp-flag to include a simple formula for a salinity dependent
18       freezing point of sea water at the surface
19     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
20       meridional stresses are now different (and hopefully correct)
21    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
22       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
23       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
24    o pkg/diagnostics: add options and parameters for regional-statistics
25       diagnostics ; define regions by reading a region-mask from a file
26       (might add other options later)
27    o pkg/bulk_force:
28     - add option and parameters to use AIM surface-flux formulae.
29     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
30       others forcing fields (defined in PARM05, parameter file "data") are loaded
31       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
32     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
33     - use the right EXCH call for uwind,vwind (to work on CS-grid).
34     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
35       and parameters (note: calcWindStress replaces .NOT.readwindstress).
36     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
37    
38    checkpoint58
39    o add "--embed-source" option to genmake2 which, when the supporting
40      tools can be compiled (as determined by genmake2) will turn on the
41      embed_files package which then embeds the entire MITgcm source code
42      (*.[fFhc] + Makefile) used for the build within the executable
43      - requested by CNH but off by default
44      - adds a paltry <9MB to the mitgcmuv executable in most cases
45      - only writes the output when useEMBEDSRC in eedata is true
46    o clean up 3-dim. relaxation codes:
47      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
48      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
49      * Thanks to Tom Haine for testing!
50    
51    checkpoint57z_post
52    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
53      affects output (@ truncation level) of exp. plume_on_slope ; updated.
54    o fix the pickup behavior for obcs in combination with ptracers
55    o fix a bug in ptracers_external_fields_load
56    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
57      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
58    o transfered surface NH pressure to eta field (if exactConserv).
59    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
60         and update lab_sea output.txt file.
61    o completing 3-dim. relaxation code: additional term
62         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
63      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
64      * At compile time, in "EXF_OPTIONS.h" set
65          #define  ALLOW_CLIMTEMP_RELAXATION
66          #define  ALLOW_CLIMSALT_RELAXATION
67      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
68          tauThetaClimRelax3Dim = 15552000.0,
69          tauSaltClimRelax3Dim  = 15552000.0,
70      * 3 cases:
71          1) Use a constant-in-time 3-dim. field
72          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
73          3) Real-time relax. to time-evolving prescribed field
74    o Adding Laplacian-type smoothness constraint on
75      initial and boundary (forcing) controls (ic, bc)
76      * enable at compile-time via
77        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
78      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
79      * Absolute scale somewhat unclear so far
80      * no area weighting was included since no other cost term does so far
81    
82    checkpoint57y_post
83    First step for a NLFS adjoint
84    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
85    o new init. routines for calc_r_star, calc_surf_dr
86    o still need to deal with ini_masks_etc
87    o testreport seemed happy
88    checkpoint57y_pre
89    
90    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
91    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
92    o add new offset feature to offline pkg (plus minor cleanup)
93    o cfc fixes for final year of integration
94    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
95      be in GCHEM_OPTIONS).
96    
97    checkpoint57x_post
98    o fix testreport Pb in multiple test experiment.
99    o cleanup our namelist syntax in verification:
100      - make it more F95 standards compliant (some work still needed)
101      - allows the vast majority of our tests to work with gfortran
102    o Non-Hydrostatic:
103     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
104     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
105    o Allow to apply AB on T,S rather than on AB(gT,gS):
106     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
107     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
108       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
109     - need a "clever" read_pickup to restart from the other AB formulation
110    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
111    o remove some unused variables (reduces number of compiler warnings)
112    o adjoint
113      * Disable useVariableViscosity for adjoint for time being
114        (there are a number of extensive recomputations)
115      * Initialize certain variables needed for adjoint
116    
117    checkpoint57w_post
118    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
119                 fix the singleCpuIO RS version of MDSWRITEFIELD
120       and add a WARNING if using globalFiles=T with multi-processors.
121    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
122      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
123    o tracer advection scheme:
124      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
125       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
126       was not very convenient).
127      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
128       (further tests needed for the implicit DST & Flux-Limiter schemes).
129    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
130      and sRef for convenience, handy, when you want to initialize
131      ptracers in a large domain with a constant non-zero value. Also,
132      untangle ptracers_init.F a little.
133    
134    checkpoint57v_post
135    o change dome exp. to use variable viscosity in side-drag terms.
136    o remove all the files from the cfc_offline test since they are now
137      incorporated into tutorial_cfc_offline which has been producing
138      identical results for a few days of testing
139    o add new parameter: sideDragFactor to enable half-slip-side BC
140      and change side-drag S/R to use viscosity from mom_calc_visc
141      (can switch back by setting sideDragFactor=0.); affects results at
142      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
143       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
144    o vorticity & strain are now computed without masking, to account for
145      no-slip-side BC in variable viscosity calculation ; mask is applied
146      anyway later on, before computing advection/coriolis terms.
147    o modify exp4 to test new obcs support for reading from external files
148      and for passive tracers
149    o fix behavior of ptracers_monitor when monitor output is written to a
150      netcdf-file; still not independent of monitor.F (writes in the same
151      file).
152    o change default value of tRef (put a uniform, meaningful value for ocean
153      & atmos) and initialize sRef (was missing, as Martin mentioned).
154    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
155      to be proportional to enstrophy dissipation length.  Thus,
156       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
157      This is now consistent with Smagorinsky and with the manual.
158    
159    checkpoint57u_post
160    o OBCS and PTRACERS: add open boundary support for passive tracers
161      - either use homogenous (pseudo) v.Neumann conditions or prescribe
162        OB-values from file; this is not different from the way theta and salinity
163        are treated
164      - however, Orlanski-radiation conditions are not supported, and the model
165        will stop if you use pTracers and Orlanski at the same time.
166      - beefed up the rountine obcs_external_fields_load: now only those open
167        boundary values are overwritten with values from files for which there
168        are really files, otherwise the OB-fields remain untouched. This makes
169        it possible to use different OBs at different ends of the domain (as
170        with EXF)
171    o reduce number of exch calls in shap_filt (s2).
172    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
173      truncation level) 4/5 MLAdjust test results (11&12 digits match).
174    
175    checkpoint57t_post
176    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
177    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
178      same truncation, independent of the face number: affects affects several
179      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
180    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
181      note that biharmonic viscosity + no-slip was not tested in any experiment.
182    o fix bug in non-linear free-surf side-drag ; generate new output for
183      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
184    o make mnc honor the writeBinaryPrec flag for most kinds of output
185    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
186    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
187      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
188    o add brackets in multi-terms sum to get same truncation, independent of
189      the face number (manage to get exactly same value of gU,gV at the cs-edge)
190      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
191    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
192      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
193      a maximum grid-scale Reynolds number.  Also, changes all length calculations
194      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
195      Suggested values of viscosity parameters found in mom_calc_visc.
196      Many new viscosity diagnostics available.
197    
198    checkpoint57s_post
199    o Add clearing-house for viscosity calculations, mom_calc_visc and
200      correct numerous bugs in LeithD and Smagorinsky discretizations.  
201      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
202      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
203      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
204      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
205      The Strain-Tension form is now called with useStrainTensonVisc=.true.
206      ViscAhStrain and viscAhTension are now retired.
207    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
208    o In response to JMC's bug report, genmake2 now ignores any soft-links
209      that it finds in the *current* directory when searching for files.
210      Soft-links found in any other source directories will still work as
211      they did before.
212    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
213      a C routine to unlimit the stack size
214    o mnc-ify pkg/aim snapshot vars
215    o mnc-ify pkg/land as requested by Daniel
216    o various changes to mnc including:
217      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
218      - output can now be grouped so that all files within a group
219          change the ITER portion of their names in lock-step together
220      - can now read ("global") PER-FACE (in addition to PER-TILE) files
221          and works with both EXCH1 and EXCH2 (but needs more testing)
222      - writing works for all verification test cases w/ g77 on Linux
223    
224    checkpoint57r_post
225    o make MNC variable initialization happen earlier
226    o add diagnostics for (almost) each term of the momentum Eq.
227    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
228    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
229    o remove MINIMAL_TAVE_OUTPUT option ;
230      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
231    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
232      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
233    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
234    o add time-dependent SST, SSS control
235    o cost terms in ecco/ modularized (new cost_generic.F)
236    o cost_averages routines are modularized (new cost_averagesgeneric.F)
237    o new infrastructure for seaice model vs. obs misfits in seaice/
238      * driver from the_main_loop.F is seaice_cost_driver.F
239      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
240      * gradient check in Exp. 6a of natl_box_adjoint/
241    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
242      (see README file)
243    
244    checkpoint57q_post
245    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
246    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
247      - bug was reported by Jean-Michel and Ian Fenty
248    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
249      update exp. cpl_aim+ocn output.
250    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
251      Needed for high-res. runs with large global files
252      to be able to limit tapelev size
253    o Changed some tests for adjoint:
254      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
255      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
256      * global_ocean.90x40x15/ back to default 3-level checkpointing
257    o Modifications to enable scripted COMMON to MODULE conversion
258      * verification/OpenAD/code/ has necessary scripts and description;
259      * converts, compiles and runs successfully;
260    
261    checkpoint57p_post
262    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
263    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
264      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
265    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
266    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
267      (was already the case for dissipation with mom_vecinv,
268       and also the case for grad.PhiHyd when staggered-timeStep)
269      This will allow to put dissipation out-off the AB time-stepping.
270     Unfortunately, affects truncation error. Update output of exp. that "fails"
271      (cg2d matching number) and leave the others for later: front_relax(10),
272      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
273      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
274    
275    checkpoint57o_post
276    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
277      (2) its ready to be documented during the 20050801 DocFest
278    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
279      for ideal_2D_oce and lab_sea on linux_ia32_g77
280    o set to #undef CTRL_SET_OLD_MAXCVARS_30
281      in global1x1_tot/code_seaice_adj to access indices 32, 33
282      (worth another tag)
283    
284    checkpoint57n_post
285    o adding precip control xx_precip 32
286    o adding swflux control xx_swflux 33
287    o Replacing 10 forcing penalty cost routines by 1 generic.
288    o Implementing partitioning in time-mean and variable adjustment
289      for atmos. state.
290    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
291    o in natl_box_adjoint:
292      * updated exp 1 to 10
293        (but does not have time-mean vs. variable split results yet)
294    o updated global1x1/*_seaice_adj/
295      to incorporate latest changes
296    o enable useSingleCpuIO for mdsio vector routines
297      (applies in particular to tapelev I/O)
298    o removed inefficient K-loop in all active_file*control*.F
299    
300    checkpoint57m_post
301    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
302      and advect_cs (use EXCH-2 and standard cs-32 grid files).
303    o pkg/exch2: filling of face-corner halo regions is optional
304      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
305    
306    checkpoint57l_post
307     tag before updating tutorials (pre-release-2)
308    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
309       for output and interpolation of input fields onto model grid)
310    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
311       Affects results of exp. rotating_tank ; update output.txt.
312    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
313          and taking the square quantity and/or using a fraction-weight field.
314    o fix aim_diagnostics_init.F mate numbers.
315    o add mnc output capability to diagnostics/diagstat and update
316      our cvsignore files for the ACSII output generated
317    
318    checkpoint57k_post
319    o lab_sea now uses diagnostics package and provides a suite of
320      new EXF diagnostics output.
321    
322    checkpoint57j_post
323    o exf
324      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
325        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
326        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
327      * extended diagnostics output
328        - now includes all EXF variables
329        - hs, hl moved to common block
330        - separate S/R for diagnostics, called after ctrl vector is added
331        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
332        - EXFqnet contains true Qnet (i.e. includes qsw)
333      * updated verif. lab_sea, global_with_exf
334      * Rearranging hflux (exf_mapfields -> exf_getforcing)
335        to ensure that diagnostics sees a true EXFqnet
336    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
337    o diagnostics pkg: change pointers so that 1 diagnostic can be used
338      several times with different frequencies.
339    o mnc-ify the thsice package as requested by Daniel Enderton
340      - the monitor--MNC output needs work
341      - many attributes need to be added (most are currently blank)
342    o mnc-ify theaim_v23 package as requested by Daniel Enderton
343      - many attributes need to be added (most are currently blank)
344    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
345    o add Sadourny like discretization to the 4th.O vorticity advection scheme
346    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
347      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
348         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
349    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
350     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
351    
352    checkpoint57i_post
353    o Diagnostics package was changed: diagnostic allocation is now deactivated
354      by setting an empty file name in the namelist (used to be by setting 0 frequency)
355    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
356      add 1rst Order upwind vertical Shear.
357    o add a quick fix for A/B checkpointing in OFFLINE mode
358    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
359      end-run around the C/Fortran linking horror in eesup/src/timers.F
360    o added pkg/runclock: allows user to terminate run based on wall clock
361    o added non-hydrostatic scaling parameter: nh_am2
362    o pkg/my82: futile attempt to make results compiler-independent by adding
363      some "_d 0", etc. no effect.
364    o for mnc output, fill the 'T' coordinate var with myTime and create a
365      separate 'iter' variable for iteration count
366    o pkg/diagnostics:
367      add new capability: output of Global/Regional & per-level statistics ;
368      tested against monitor output (including land & thSIce) on various exp.
369    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
370    
371    checkpoint57h_done
372      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
373      data.diagnostics, data.gchem, data.ptracers) is done.
374    
375    o pkg/diagnostics: prepare for Global/Regional statistics.
376      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
377    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
378      and rename it: DIFFERENT_MULTIPLE
379    
380    checkpoint57h_post
381    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
382    o pkg/diagnostics: change output frequency, now in seconds (instead
383      of Nb of iterations). This requires to change data.diagnostics.
384    checkpoint57h_pre
385    
386    o in mnc, let the user create the output dir if both mnc_outdir_date
387      and mnc_outdir_num are false
388    o add fflags() to pkg/diagnostics which allows one to specify, on a
389      per-file basis, the file precision [default behavior is unchanged]
390    o added diagnostics to pkg/kpp, including computation of mixed layer
391      depth based on a temperature/density criterion
392    o updated verification/natl_box to test the new pkg/kpp diagnostics
393    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
394    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
395    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
396      not mnc -- this mistake was found by JMC and is now corrected
397    
398    checkpoint57g_post
399    o add Adams-Bashforth 3rd Order time stepping:
400      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
401      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
402    checkpoint57g_pre
403    
404    o make lambda[Theta,Salt]ClimRelax spatially varying
405      (default remains spatially uniform constant based on tau)
406    o added new control variables
407      * init. uVel, vVel, etanN
408      * lambda[Theta,Salt]ClimRelax
409    o separate masks used for ctrl_pack/unpack 'from write_grid' output
410      (suggested by G. Forget)
411    
412    checkpoint57f_post
413    o add parameter "baseTime" = model base time = time at iteration zero
414      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
415      account for baseTime shift
416    o move Coriolis arrays from PARAMS.h to GRID.h
417    checkpoint57f_pre
418    
419    o mnc-ifying the seaice package
420    o introduced an alternative length scale calculation for use in the limiting
421      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
422    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
423    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
424      as well as grad(vort3).  Made it compatible with both approximate form
425      for the cubed sphere and full form of these gradients.  Added flag
426      useFullLeith to select between approximate and full form.  
427    o add "d0" in getcon.F to reduce differences between compilers/platforms
428      update output.txt of exp. fizhi-gridalt-hs
429    o change port_rand funtion to allow to set the seed.
430    o fix obscure MNC bug involving conversion between reals and integers
431      - it caused no problems with certain (eg. gcc, ifc) compilers but the
432        new version is now more standards-compliant
433    o adjoint-related modifications
434      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
435      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
436      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
437    
438    checkpoint57e_post
439    o Adding eddy stress controls a la Ferreira et al.
440    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
441    
442    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
443      update output.txt of exp. fizhi-gridalt-hs
444    o add more "Z" dimensions and associated coordinate vars to MNC
445    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
446    o parameter calendarDumps: when set, approximate months (30-31 days) and years
447      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
448      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
449      months and years.  Requires pkg/cal.
450    o diagnostics: add pickup functionality
451      - off by default for backwards compatibility
452      - current version only uses MDSIO -- MNC will be added
453    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
454    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
455    
456    checkpoint57d_post
457    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
458    o modify verification/ideal_2D_oce so that it tests the creation of mnc
459      output from the diagnostics package
460    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
461    o make genmake2 more portable by using ".$FS" instead of ".f" for more
462      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
463    o add coordinate variables to the MNC output from the diagnostics package
464    o change MNC-flags default value: true when useMNC=TRUE
465    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
466      the ability (off by default) to read the grid information using MNC
467    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
468    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
469    o do snap-shot diagnostics at the middle of the time-interval (instead of
470      at the end).
471    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
472      new test for AIM with thSIce + slab-ocean
473    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
474    o move state variable diagnostics to the beginning of the time step ;
475      (note: still needs some work specially for snap-shot diagnostics)
476      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
477    
478    checkpoint57c_post
479    o Change testing option (-ieee) to get closer agreement between g77 & ifort
480    o generate new output.txt files on faulks with g77 & the new -ieee option
481    checkpoint57c_pre
482    
483    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
484      update output.txt of exp. global_ocean.90x40x15
485    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
486      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
487    o add saltFlux(+File) forcing capability with periodicExternalForcing
488    o allow to use pkg diagnostics for GM-Redi & ThSIce output
489    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
490    o improvements for the MNC output from DIAGNOSTICS:
491      - correct handling of the unlimitied dimension
492      - all dims now have associated coordinate variables
493      - variables located at U, V, and Corner ("Z") points are now written
494        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
495        *all* data points are output
496    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
497    o added pkg/seaice/seaice_monitor.F
498    o mdsio_readfield.F can now read files visible only to master MPI process.
499    o pkg/seaice: some test code for ice-modified ocean stress
500    o exf_getffields interpolation defaults to bilinear for all scalar forcing
501      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
502      spurious negative numbers for precipitation and humidity.  Will cause
503      some small numerical differences for integrations using pkg/exf/exf_interp.F.
504    o pkg/ctrl/
505      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
506        May be enabled via doPackDiag
507      *  introduce z-scaling of
508         + gradient (doZscalePack) and
509         + control (doZscaleUnpack)
510    o pkg/mdsio/
511      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
512      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
513    
514    checkpoint57b_post
515    o simplify options in diagnostics_fill arguments (remove weird combinations)
516    o fix MNC coordinate variables so that they now contain per-face index
517      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
518      general, EXCH2 grids are only aligned to a "local" coordinate system
519    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
520    o Implement instantaneous output within pkg diagnostics:
521      setting a negative frequency in data.diagnostics produces
522     "snap-shot" output (as opposed to time-average if freq > 0)
523    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
524      NOTE: change ptracer diagnostics name: use 2 characters to work with
525            more than 9 tracers. Add also diagnostics of advect & diffus flux.
526    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
527      becomes the coordinate variable for the 'T' dimension
528    o add CF-style coordinate variables to MNC
529      - just a first cut:  numbers are meaningless on the cubesphere and
530        missing along the T axis but otherwise it works!
531    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
532    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
533    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
534      this is based directly on what the model compute, so that the content of
535      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
536    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
537    o clean up build options files for SunOS, in particular
538      - remove -traditional from xmakedepend
539      - change -xarch=v9 to -xarch=native for f77
540      - restore use of make (not gmake)
541      - add CC=gcc if using g77
542    o changes per discussion of AM, JMC, & EH3 today:
543      - move redundant "grid" variables out of "state" -- in preparation of
544        creating proper CF-style coordinate variables and in recognition
545        that any/all grid variables can be easily copied (eg. w/NCO) from
546        the grid files into any of the other NetCDF files
547      - *always* output grid variables with MDSIO (this will eventually be
548        changed)
549      - output MNC grid file if useMNC is true
550    o every instance of _END_MASTER() has been found and replaced with
551      _END_MASTER( myThid ) in order to satisfy certain picky Sun
552      preprocessors
553    o re-arrange diagnostics pkg initialisation:
554     - allow each package to extend the available diagnostics list
555     - add some checking and fix small problems (multi-threaded, ...)
556     - new S/R diagnostics_fill (replace fill_diagnostics):
557       look through the short list of active diag. (instead of the long list)
558       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
559    
560    checkpoint57a_post
561    o this set of changes restores TAMC compatibility
562      tested for global_ocean.90x40x15 adjoint on trough
563      (what a pain)
564    
565    checkpoint57a_pre
566    o some modifs in tools/build_options for sunos
567    o call ctrl_pack for ctrl at end for optimcycle=0
568    
569    checkpoint57
570    o add horizontal bi-harmonic viscosity for vertical velocity
571      - new parameter viscA4W (defaults to viscA4)
572      - affects only non-hydrostatic code
573      - to be done: no-slip lateral boundary conditions
574    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
575    o implement Implicit Vertical advection for pTracers
576    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
577      (implemented also for implicit vertical diffusion & advection)
578    o OBCS: extend application of tracer open boundary conditions
579      to a strip beyond the boundary of width Olx/Oly
580    o add call monitor to TAF set of required calls (flow directives)
581      and include in natl_box_adjoint
582    o untangle a few ifdefs related to cost, ctrl, autodiff
583      untangel a few ALLOW_ECCO_OPTIMIZATION
584    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
585      (theta2, salt2 in ecco_cost_weights)
586    
587    checkpoint56c_post
588    o OBCS as control variables
589      - update ctrl_ad_diff.list, obcs_ad_diff.list
590      - remove balance of obcs controls from default
591      - fix index bug nobcs in ctrl_init
592      - fix dummy fields filen in ctrl_pack
593      - add dummy weights for obcs
594    o lsopt: comment out fort.94 output
595    o optim:
596      - remove unnecessary header files
597      - adjusted namelists
598      - add xerbla.F to Makefile
599    o exf:
600      - multiple modifications of exf_check_range
601      - unit change in exf_init_runoff from [m/year] to [m/s]
602    o mdsio:
603      - i/o-vector change debugLevel from debLevA to debLevB
604    
605    checkpoint56b_post
606    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
607      is called from DO_THE_MODEL_IO
608      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
609      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
610      - clean up PTRACERS_WRITE_TIMEAVE a little
611    o add another verification experiment that tests both the cfc-pkg and
612      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
613      reactive tendencies treated inline with regular timestepping
614    o testreport previously did a lousy job of comparing small numbers, so
615      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
616      implemented in the little c-progam tmp_cmpnum.c which is embedded in
617      testreport.
618    o ptracers_monitor: bug fix for MPI
619    
620    checkpoint56a_post
621    o GCHEM: finish reorganizating the package
622      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
623        (introduces another 3D-array for each passive tracer, but only if
624        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
625        gchemTendency is not needed because the timestep is done separately)
626      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
627      - GCHEM is now---more or less cleanly---separate from PTRACERS
628      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
629        so clear to me how that should be done in a general way.
630    o CFC: improve formatting of output in CFC_ATMOS
631    o PTRACERS:
632      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
633        that ALL experiments with ptracers enable can be checked. This makes
634        GCHEM_MONITOR obsolete.
635      - include a runtime parameter PTRACERS_monitorFreq that defaults to
636        monitorFreq
637      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
638    o add PTRACERS (PTR0[1-5]) to testreport output
639    o exf_check_range:
640      * default changed to .TRUE.
641      * will check values for niter0 if debLevA, every timestep if debLevB
642      * STOP in exf_check_range if 'out of range'
643      * range chosen generous to allow for potential extema
644      TBD: a version with stricter range
645           permitted range would be runtime parameters
646    o GMredi:
647      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
648      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
649      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
650    o GCHEM:
651      - move call to GCHEM_FORCING_SEP, so that it is now called before
652        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
653      - introduced a useGCHEM runtime flag and applied it everywhere.
654      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
655        this flag is now only visible within GCHEM-pkg routines.
656      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
657        be replaced by a 3D array that is computed before thermodynamics; for
658        this, the tracer ID iTracer had to be included into the parameter list
659        of ptracers_forcing
660      - set up forward_step to call gchem_forcing, that will replace
661        gchem_forcing_int in ptracers_forcing
662      - cleaning up
663    o small cleaning of exch2: remove files that are also in eesupp/src
664    
665    checkpoint56
666    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
667    o mnc: cleanup "full" files--fixes out-of-memory problem
668    o ECCO-GODAE
669      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
670      * fully merged and updated from SIO code
671        windstress sign change affects
672        - exf_inscal_[u/v]stress
673        - sign of xx_tau[u/v] adjustments
674        - signs in cost_scat
675      * ctrl_get_gen: avoid update of tau[u/v] for first few days
676      * natl_box_adjoint updated and compressed
677      * 2-level checkpoint switch added
678        (tested in EXP. 1 of natl_box_adjoint)
679      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
680    o SVD
681      * first complete, non-hacked version for SVD calculations
682      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
683        performed via direct access files admtlm_vector.it????
684        (via ctrl_[un]pack)
685      * optimcycle is used for ARPACK iteration counter
686        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
687      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
688        and add linear transforms where necessary
689      * controls are initial/final SST, SSS (can be extended; need to check
690        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
691    o mdsio: filename info to both stderr, stdout
692    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
693      from sign change
694    
695    checkpoint55j_post
696    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
697      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
698    o add consistent build directories and .cvsignore files to verification
699    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
700    o make all subroutines 30 or less characters in length for certain older
701      compilers to work (a thorough search only turns up two routines in
702      pkg/ptracers)
703    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
704      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
705    
706    checkpoint55i_post
707    o change arrays for total vertical diffusivity (2.D if explicit,
708      3.D if implicit) ; each ptracer uses its own background value.
709    o added mnc/NetCDF output capability to ocn_compon_interf
710      - added bits to verification/cpl_aim+ocn so that it can run on
711        ITRDA and other clusters without the mpirun "-wd" option
712    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
713      configuration
714    o give MNC the ability to create additional files rather than
715      exceeding a specified file size limit "MNC_MAX_FILESIZE"
716      - the default is just less than 2GB which is a practical limit
717        on many systems
718    o Compute the non-local term using either KPP vertical diffusivity (=default)
719       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
720    
721    checkpoint55h_post
722    o add verification test "vermix"
723    o remove all the *_ioinc flags and replace with the single global
724      outputTypesInclusive flag
725    o allow to set a vertical profile of vertical diffusivity for T & S
726    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
727    o useMNC moved from data.mnc to data.pkg
728    
729    checkpoint55g_post
730    o Renaming carbon AD experiments to comply with testreport conventions
731    o Updating adjoint of Held-Suarez hs94.1x64x5
732    o Fixing directives for non-ECCO forward_step, after ECCO directives
733      have been fixed to avoid recomp. of do_oceanic_phys
734      Works well for global_ocean.90x40x15,
735      but recomp. issue remains for carbon
736    o Updating adjoint output for natl_box_adjoint after
737      pkg/ecco has been modified (see taga c55d_post)
738    
739    checkpoint55f_post
740    o rename to timeave_init_fixed
741    
742    checkpoint55e_post
743    o some delicate re-shuffle of store directives to avoid one
744      extra call of do_oceanic_physics
745      affects ecco_the_main_loop.F, do_oceanic_physics.F
746      checkpoint_lev1_directives.h
747    o NB: this may break global_ocean adjoint temporarily,
748      but it is clear how to fix it. Will do later, need this now.
749    
750    checkpoint55d_post
751    o ECCO specific cost function terms (up-to-date with 1x1 runs)
752    o ecco_cost_weights is modified to 1x1 runs
753    o modifs to allow observations to be read in as
754      single file or yearly files
755    o enable to read exf forcing fields as either
756      single file or yearly files (flag useExfYearlyFields)
757    checkpoint55d_pre
758    
759    o switch between 2-level and 3-level checkpointing
760    o add ability of MNC to write local and "partial" (eg. 2D slices where
761      the full 3D field is never actually stored) arrays to NetCDF files
762      with the correct (that is, the complete multi-dimensional) set of
763      array indicies
764      - used in mom_vecinv() to write the diagFreq output
765      - tested (demonstrated) in verification/aim.5l_cs
766    o further mnc-ification
767      - add verification/lab_sea to the list with mnc setups
768      - fix undefined mnc v-names in cd_code
769      - add kpp to mnc output (both snapshot and timeave)
770    o non-hydrostatic code
771      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
772        in calc_gw.F
773      - defaults to viscAh
774      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
775        friction or Leith) in non-hydrostatic mode, as long as there is
776        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
777    o pkg/cost
778      extend simple cost functions to treat time mean quantities
779      (T,U,V) via cost_accumulate_state from cost_tile
780    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
781        be 2 times larger than the minimum size the advection scheme requires.
782        now get a perfect conservation of salt in advect_cs test-exp (updated)
783    o GGL90 (Gaspar's TKE mixed layer)
784      - add horizontal diffusion of TKE, requires exchanges in
785        do_fields_blocking_exchanges, horizontal diffusivity is zero by
786        default. In OPA there is no horizontal diffusion of TKE but the
787        mixing coefficients are computed from a horizontal average of TKE of
788        6 points or so. I think that diffusion has a little more physical
789        justification.
790      - clean up ggl90_calc in the hope of reducing memory usage (this hope
791        was in vain)
792      - mask tke-variable in ggl90_init
793    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
794    o fix biharmonic diffusion on CS-grid.
795    o more obcs stuff
796      - added obcs_external_fields_load as an alternative to the EXF-pkg option
797        for reading boundary values. This routine is called from
798        obcs_prescribe_read
799      - updated obcs_check
800      - changed sponge layer relaxation parameter units for days to seconds
801      - turned off sponge layer by default
802      - changed argument list of OBCS_CALC to myTime+deltaTclock
803      - fixed about 35 bugs in obcs_external_fields_load
804    
805    checkpoint55c_post
806    o obcs stuff
807      - new runtime flags useOBCSprescribe, useOBCSbalance
808      - re-arranged obcs_calc
809      - moved exf_getobcs to obcs_prescibe_read
810        obcs_prescibe_read is called after ORLANSKI stuff
811        and independent of it (executable can contain all).
812      - updated obcs_check
813      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
814        These may be necessary only if tangential velocities are
815        prescribed at OB, not sure, needs testing.
816    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
817      which simplifies the calls and passes the ifc check-bounds test
818    
819    checkpoint55b_post
820    o add a 2D scalar, Z location, exchange_2 routine.
821    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
822      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
823      affects advect_cs results (for the wrong reason): update output.txt
824    o use a more standard discretization for biharmonic viscosity ;
825     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
826      affects results of dome set-up: update output.txt
827    o fix gad_advection.F (CubedSphere part), back to version 1.23
828    o fix bug in mom_vi_del2uv.F (CubedSphere part).
829    
830    checkpoint55a_post
831    o merged code to
832      * prescribe/read time-dependent open boundaries
833        (works in conjunction with exf, cal)
834      * sponge layer code for open boundaries
835      * each boundary N/S/E/W now has its own CPP option
836        (healthy for the adjoint)
837    
838    checkpoint55
839    o up-to-date adjoint of previous breaks
840      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
841      - global_ocean_ebm: adjoint still needs fix (TLM ok)
842      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
843      - carbon: * remove tr1-related adjoint verification
844                * add ptracer as control variable
845    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
846      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
847    
848    checkpoint54f_post
849    o in verification/carbin/ remove experiment related to
850      ALLOW_PASSIVE_TRACER (array tr1 etc)
851      code_ad/ input_ad/ results_ad
852    
853    o add two new packages
854      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
855        + subject to optimization (memory)
856      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
857        + subject to reordering (many GOTOs in the original code)
858        + so far opps is called for every (i,j) point, and then operates in
859          the vertical; one may want to reorder the scheme in order operate in
860          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
861          fields)
862    o overhaul of IO so that we now have flags for MDSIO and/or MNC
863      - all verification tests compile and run with linux_ia32_g77
864      - defaults are compatible with current input files--nothing
865        should change if you were not previously using MNC
866      - MNC output has been added in numerous places (eg. timeave)
867        but there are still a few writes not yet do-able with MNC
868        (this is in progress)
869      - flags now allow for either/or/both use of MDSIO and MNC and
870        documentation will soon follow
871      - numerous small formatting cleanups for ProTeX
872    o add version info (via BUILD_INFO.h) to MNC and stdout
873    
874    checkpoint54e_post
875    o add two new packages
876      - pp81 (Packanowski and Philander, 1981), Richardson number and
877        stratification dependent mixing
878      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
879      - these scheme operate in a similar manner as KPP (without ghat, of
880        course), however there is only one diffusivity that is used for both
881        temperature and salinity (and passive tracers)ç
882    o add offline package
883    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
884      provided by Stephanie Dutkiewicz
885    o genmake2: add ability to search for C compilers and cleanup test output
886      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
887    
888    checkpoint54d_post
889    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
890    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
891      leading to additional shift by 5 days each year of integration
892       (i.e. leading to considerable offset over the years)
893    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
894    o start with no AB and no initial filtering (staggerTimeStep):
895      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
896    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
897      (external loading & cpl import/export stay in forward_step.F)
898    o update coupling interface to work with new staggerTimeStep
899    o change MDSIO ptracers_pickup.
900    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
901    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
902    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
903    
904    checkpoint54c_post
905    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
906      this affects (truncation error) output.txt of test-exp:
907       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
908    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
909    o change Qnet to always be the net heat flux, (+upward).
910      affects (truncation error) output of natl_box exp.: updated
911    o define the max number of passive tracers in PTRACERS_SIZE.h
912    o start to test mnc routinely in exp0
913    o add sea-ice loading (sIceLoad) as a new forcing field.
914    
915    checkpoint54b_post
916    o add testreport "-j JOBS" option for parallel builds (tested and pretty
917       impressive on Altix and Opteron systems)
918    o diagnostics can now write NetCDF files through the mnc package
919    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
920    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
921    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
922      affects (truncation error) output of lab_sea & natl_box exp.: updated
923    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
924    
925    checkpoint54a_post
926    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
927    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
928    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
929    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
930      + internal_wave (shift in writing cg2d_ini_res)
931    checkpoint54a_pre
932    
933    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
934      - modified verification/lab_sea and natl_box_adjoint accordingly
935    
936    checkpoint54
937    checkpoint53g_post
938    o prepare splitting of thermodynamics: store convect.counter in common block
939    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
940      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
941    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
942    o new parameter "nShapS": allow to treat differently S from T (nShapT)
943    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
944    o restore adjointability
945    
946    checkpoint53f_post
947    o modifications that affect AIM experiment results (update output.txt):
948      - no advection of S at top interface Nr (pkg/generic_advdiff)
949      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
950    o AIM pkg:
951      - include stability function into surf.Flux derivative relative to Tsurf
952      - calculate clear-sky radiation & surface temp. change (for diagnostics)
953    
954    checkpoint53e_post
955    o merged cylindrical coord configuration
956    o added rotating_tank experiment
957    checkpoint53e_pre
958    
959    checkpoint53d_post
960    o faulks upgraded: re-generate output.txt that have changed:
961       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
962    o Added Bryan and Lewis, 1979, vertical diffusivity profile
963    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
964    o added Sadourny discretization of Coriolis
965      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
966      - re-enabled use of omega3 (useAbsVorticity)
967    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
968      vector-invariant equations
969      - note: does *NOT* yet use same variable visc. for no-slip BC's.
970    o recoded the lateral boundary conditions for non-hydrostatic w, this time
971      hopefully without new bugs
972      - still to do: biharmonic friction for non-hydrostatic w
973    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
974    o regenerated output for global_ocean_ebm (using -ieee)
975    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
976      of mom_common/
977      - simple re-arrangement of instructions within computing loop
978    checkpoint53d_pre
979    
980    checkpoint53c_post
981    o new version of coupler for AIM+thSIce and Ocean models
982     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
983     - land: change Evaporation of snow
984     - aim with thSIce: fix bug in snow-precip.
985    o changes to calc_gw.F
986     - bug fix for w^2 term near the bottom boundary
987     - (hopefully) improve the lateral slip boundary condtions for use with
988        partial/looped cells
989      - because the bug fix changes two verification experiments anyway (exp5
990        and plume on slope), change the lateral boundary condition from half slip
991        to the value of no_slip_sides
992    o ebm package wasnt quite up to the parallel task. Fixed that.
993    o Adjoint of EBM package + verification
994      * TLM OK
995      * ADM not sufficient accuracy yet (needs further testing)
996    
997    checkpoint53b_post
998    o Commiting new energy balance model to repository
999      * package is pkg/ebm
1000      * verif. is verification/global_ocean_ebm
1001      * references are in ebm_driver.F
1002    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1003    C        Global thermohaline circulation. Part I:
1004    C        Sensitivity to atmospheric moisture transport.
1005    C        J. Climate 12(1), 71-82
1006    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1007    C        Global thermohaline circulation. Part II:
1008    C        Sensitivity with interactive transport.
1009    C        J. Climate 12(1), 83-91
1010    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1011    C        Destabilization of the thermohaline circulation
1012    C        by atmospheric eddy transports.
1013    C        J. Climate 7(12), 1870-1882
1014    o Will need long integration testing.
1015    checkpoint53b_pre
1016    
1017    o created pkg/mom_common in preparation for variable viscosity code
1018    o renamed and split ini_mnc_io
1019    o pkg/land: only liquid water can diffuse or run-off
1020    o AIM using land: soil wetness availability account for snow
1021    o added printMapIncludesZeros to EEPARMS namelist
1022    
1023    checkpoint53a_post
1024    o restore TAMC compatiility for exf_constants.h
1025      (no usage of _d in .h)
1026    o Additional storing in KPP in an attempt to fix
1027      TAMC problem with adjoint of KPP code.
1028      (no success...)
1029      Identical code works fine with TAF.
1030    o Fixed verification/natl_box_adjoint experiments.
1031      Initial conditions for Experiments 4 and 5 are now
1032      set to "SEAICE_initialHEFF=0", which is more reasonable,
1033      and hence gives results closer to that of Experiment 2.
1034      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1035    
1036    checkpoint53
1037    o stable checkpoint with up to date adjoint
1038      TLM tests only run for 1st grdchk at the moment. Its unclear if
1039      this is a code problem or a problem with resetting code for g_
1040      variables that is being autogenerated wrong.
1041      Otherwise:
1042       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1043       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1044         are both still in chaos following their security messes.
1045    
1046    checkpoint52n_post
1047    o various build (mostly genmake2) changes including:
1048      - ability to build/run more easily within Cygwin and MacOS X
1049      - more complicated Makefiles with a stronger dependence on Gnu Make
1050    o pkg/seaice modifications
1051      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1052        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1053        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1054      - changed proxy for geostrophic velocity and updated
1055        verification/lab_sea/results/* accordingly
1056      - removed ADI dynamic solver from pkg/seaice
1057      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1058        they caused a segmentation fault under certain circumstances
1059      - removed unused field WATR
1060    o bug fix in exf-package:
1061      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1062         now reflect that.
1063    o small fixes in the cal-package:
1064      - set reference date to first of January for the 'model'-calendar
1065      - failing of cal_CheckDate in cal_FullDate now actually results in a
1066        warning
1067    o small modifications in exf-package to increase flexibility:
1068      - change climtempfreeze from a constant to a runtime parameter that
1069        is specified in data.exf_clim (default = -1.9)
1070      - introduce runtime parameter windstressmax (default = 2.0) that is
1071        specified in data.exf
1072    o fix in pkg/thsice:
1073      - update Evap (Tsf changes) to be consistent with Latent heat flux
1074      - maintain snow precipitation unchanged (even if Tsf >=0).
1075     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1076    
1077    checkpoint52m_post
1078    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1079      this does not change any of the results, because myIter=0 in swfrac always
1080      lead to jwtype=2 (the default anyway), but the call makes little sense
1081      as a default
1082    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1083    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1084      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1085    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1086    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1087    o extending useSingleCpuIO option to work with new exch2 I/O format
1088      - old-style, missing-tile I/O is still accessible by defining CPP
1089        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1090    o monitor package can write to NetCDF files and/or STDOUT
1091    o fix re-definition bug in MNC_GRID_INIT_ALL()
1092    o doc/api_reference added
1093      - a framework for building an API Reference Manual using all
1094        the "protex" comments embedded in the code
1095      - see pkg/generic_advdiff, pkg/mnc for examples
1096    o MNC:
1097      - make myThid the last argument for all subroutines
1098      - new default for the grid files: NO halos
1099      - add useMNC and other run-time flags
1100      - separate per-file-group handling of the unlimited dimension
1101      - early initialization of MNC w/ flags read at the eeboot stage
1102        and lookup tables set in initialize_fixed
1103      - write all MNC output to a freshly-created directory
1104    o thermodynamics sea-ice (thsice) is now tested with testreport.
1105    o test exp. advect_cs: use the standard cs32 grid ; update output.
1106    o Added functionality to grdchk:
1107      pick global i,j,k position (or nearest wet) where to perform check.
1108    
1109    checkpoint52l_post
1110    o new land formulation:
1111      a) use ground enthalpy as prognostic variable to ensure exact
1112         energy conservation.
1113      b) account for water temperature and for latent heat of freezing
1114         in all processes (rain, run-off, ground storage)
1115      c) compute surface and ground temperature implicitly.
1116    o aim_v23 modification for new land model:
1117      a) Treat separately land / ocean / sea-ice surface fluxes
1118         to allow implicit computation of land & sea-ice surface temp.
1119      b) add snow precipitation.
1120    checkpoint52l_pre
1121    
1122    o fix problem (when 1 tile is empty) in min/max monitor.
1123    o fix bug in timeAve (u,vZetatave in common block)
1124    o no restoring terms under ice for pkg/seaice
1125    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1126    o bug fix for pkg/seaice pickups
1127    o change MNC call locations and add coordinate attributes
1128    o mask vorticity at the corner ; affects global_ocean.cs output
1129    o fix ini_curvilinear_grid ; test CS experiments with mpi
1130    o aim.5l_cs: modify sea-ice fraction input file ; update output
1131    o exf: Adding simple range check routine for exf fields after read
1132    
1133    checkpoint52k_post
1134    o removed top-level directory "diags"
1135      - we migrated these functions to pkg/timeave a long time ago
1136    o fixed bug introduced in pkg/monitor
1137    o accuracy ctrlprec = 32 insuffient for gradient checks using
1138      averaged fields (I/O via cost_averages)
1139      -> use ctrl.h in active_file*.F to control I/O precision.
1140    o paramter list of CALL ADTHE_MAIN_LOOP
1141    o added initial do_the_model_io to ecco
1142    o set all ...Freq to zero after cost_final
1143      taveFreq, dumpFreq, pChkptFreq
1144    o MAIN and ECCO differentiability restored
1145    
1146    checkpoint52j_post
1147    o fix nchklev in tamc.h for global_ocean...
1148    o Bringing flow and store directives up-to-date
1149    o Really weird thing!
1150      call do_the_model_io from the_main_loop with parameters
1151      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1152      TAF places a faulty re-call of initialise_varia
1153      after cost_final call which should not be there!
1154    checkpoint52j_pre
1155    
1156    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1157      error messages
1158    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1159    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1160      debug output
1161    o modfied mdsio_writefield.F to handle non-global files under exch2
1162    o update AIM Cubed-Sphere exp (aim.5l_cs):
1163      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1164    o update AIM Equatorial Channel exp:
1165      use standard aim_v23 pkg and change the SST fields to be more realistic.
1166    o globalFile now works with exch2
1167    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1168      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1169    o limit timeave output for hi-res integrations
1170    
1171    checkpoint52i_post
1172    o removed CPP_EEOPTIONS.h from verification/*/code
1173    o updated the tiling for global_ocean_pressure
1174    checkpoint52i_pre
1175    
1176    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1177      the old pkg/aim).
1178    
1179    checkpoint52h_pre
1180    o shortened offending lines in exch2_send_rx?.template
1181    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1182    o genmake2: add build & execute test for NetCDF code
1183    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1184      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1185    o added useSingleCPUIO flag to monitor.F and mon_out.F
1186    o added temporary hack for sea-ice dynamics on the cube:
1187      metric terms are ignored and it is assumed that
1188      there is no sea-ice on cube faces 1, 2, 4, and 5.
1189    
1190    checkpoint52f_post
1191    o added exch2 cube routines to pkg/exch2
1192    o modified hs94.cs-32x32x5 to use it
1193    o added new grid files to hs94.cs-32x32x5
1194    checkpoint52f_pre
1195    
1196    checkpoint52e_post
1197    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1198      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1199    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1200      to work with implicit vertical advection and AB ;
1201    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1202    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1203     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1204    checkpoint52e_pre
1205    
1206    o fix bug in impldiff when Nr=1 or Nr=2.
1207    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1208    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1209    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1210      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1211    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1212    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1213    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1214    
1215    checkpoint52d_post
1216    o re-tiled many expts to allow comparison in multi-processor mode
1217      - updated output accordingly
1218      - changed hs94.128x64x5 to use intial T from file rather than use the
1219        random number generator
1220    o add infrastructure in model routines for fizhi and gridalt packages
1221    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1222    o changes to permit hi-res, cubed-sphere, configuration
1223      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1224      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1225      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1226        of surface winds for the cube
1227      (A verification experiment, based on global_ocean.cs32x15, but with
1228       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1229       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1230       complete with example surface forcing files and matlab scripts to look
1231       at the output and compare it with that of global_ocean.cs32x15.)
1232    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1233       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1234       to conform to the common rule.
1235    o check-in the first version of the coupler + interfaces for multi-components
1236       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1237       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1238       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1239       - ocean and atmos. share the same horizontal grid (no interpolation).
1240       - exchanges between component and coupler is done in forward_step
1241    o new verification experiment, cpl_aim+ocn:
1242       coupled ocean - AIM atmosphere on cs32 grid.
1243    
1244    checkpoint52d_pre
1245    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1246    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1247    
1248    checkpoint52c_post
1249    o Fixing OPTIONS files for use of exf:
1250      - ALLOW_ECCO not needed
1251      - ECCO_CPPOPTIONS.h should not be included from
1252        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1253        as has been the case in the past
1254      - All cal/exf related options are currently set in
1255        single header file. Should remain so until we
1256        agree on a consistent new policy.
1257    o Removed all CPP options for cal package.
1258      cal has no more CPP options.
1259    o modified STOREs in GAD_ADVECTION
1260    o corrected key comp. for passkey
1261    
1262    checkpoint52b_post
1263    o new version: "thsice" of thermodynamic sea-ice pkg:
1264     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1265     - modify fluxes but do not change theta directly;
1266     - light cleaning of bulk_force pkg (still needed with thsice).
1267     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1268       + output_thsice.txt to test thsice & bulk_force pkgs.
1269    o put back grid & coriolis monitor output.
1270    checkpoint52b_pre
1271    
1272    o call "do_the_model_io" at the beginning (=> dump initial state)
1273    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1274    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1275      (need info on NUMBER_OF_PTRACERS)
1276    o missing PTRACERS headers in some routines
1277    o default tamc.h in pkg/autodiff supposed to crash
1278      to ensure proper customization
1279    
1280    checkpoint52a_post
1281    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1282      - moved surfaceTendencyTice from pkg/seaice to main code
1283      - subroutine FREEZE_SURFACE now limits only surface temperature
1284        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1285        => new output.txt for global_ocean.cs32x15 & global_with_exf
1286      - keep the old version of FREEZE for backward compatibility;
1287        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1288      - corresponding modifs for TAF directives
1289    o added surface flux output variables to TIMEAVE_STATVARS
1290    o time-averaged output for pkg/ptracers
1291    o fix problem with ECCO-related divided adjoint
1292      snapshot file was missing some ad-variables,
1293      but no warning issued by TAF
1294    
1295    checkpoint52a_pre
1296    o some bug fixes for #undef REAL4_IS_SLOW
1297    
1298    checkpoint52 = ecco_c52_e35
1299    o after testing adjoints of checkpoint51u_post
1300    
1301    checkpoint51u_post
1302    o this is the post-merge tag of the ecco-branch
1303      (needs another clean checkout and re-testing)
1304    o various natl_box_adjoint configs and results
1305      but no input fields
1306    o obcs adjoint not yet merged!
1307    o adding ECCO global 1x1 and 2x2 degree configs
1308    o updated/extended some store directives for seaice
1309    o pkg/ecco now containes ecco-specific part of cost function
1310    o top level routines the_main_loop, forward_step
1311      supersede those in model/src/
1312      previous input data.cost now in data.ecco
1313      (new namelist ecco_cost_nml)
1314    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1315    
1316    checkpoint51t_post
1317    o this is the pre-merge tag of the ecco-branch
1318    
1319    checkpoint51s_post
1320    o cleanup: removed various obsolete #define-s
1321    o pkg/grdchk
1322      - renamed 'ph-grd 3' to 'grad-res'
1323      - merged from ecco-branch
1324        (remaining bug fixes for obcs gradient checks)
1325      - additional high-precision output for testreport
1326        (grep for 'precision_grdchk_result')
1327    
1328    checkpoint51r_post
1329    o cleaned up or removed CPP_OPTIONS.h files
1330    o updated results for some of the tests to reflect the new
1331      optfiles (-ieee: -O0 instead of -O3)
1332    
1333    checkpoint51q_post
1334    o cd_code:
1335      - moved cd_scheme.F -> cd_code_scheme.F
1336      - separate read_checkpoint from cd_code_ini_vars.F
1337      - separated cd_code part from write_checkpoint
1338      - updated AD_SOURCE, generated .flow
1339      - added CD_CODE_VARS.h to the_main_loop
1340      - Moving cd_code specific store dir.s to pkg/cd_code
1341    o ctrl package totally restructured
1342      - pack/unpack now optional and decoupled from
1343        xx_/adxx_ I/O
1344      - ctrl_pack/unpack cleaned
1345        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1346      - confined inclusion of AD_CONFIG.h to where necessary.
1347    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1348    
1349    checkpoint51p_post
1350    o create initial cd_code package
1351      - WARNING: the initialization of fields within packages
1352        is broken because INI_FIELDS (where READ_CHECKPOINT is
1353        called) is called *before* PACKAGES_INIT_VARIABLES.
1354        This seems to be backwards since
1355        1) its important to initially zero the entire field including
1356           the "halo" region
1357        2) zeroing needs to be done *before* reading pickup info
1358           and the pickup call might or might not happen in any
1359           particular run
1360      - this needs an overhaul for R2
1361    o cleanup verification/*/code/GMREDI_OPTIONS.h
1362    o cleanup testreport
1363    
1364    checkpoint51o_post
1365    o bringing AD-related verif's up to date with genmake2
1366      - carbon/
1367      - global_ocean.90x40x15/
1368      - hs.94.1x64x5/
1369      - (front_relax/ )
1370    o (more) consistent directory structure for AD-related verif.'s
1371    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1372    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1373    o bug fix in find_alpha.F for MDJWF:
1374      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1375        change rho -> rho-rhoConst
1376      - replace call find_rho to find_rhonum
1377    o initialisation of rFlx extended to full array (required by TAF)
1378      and shifted to thermodynamics
1379    o removed PTRACERS.h in ptracers routine
1380    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1381    o Correcting initialisations for fVerU, fVerV.
1382    o helping TAF to recognize dependency on kUp for
1383      fVerU, fVerV
1384    o Replacing delZ by delR in pkg/ctrl/
1385    checkpoint51o_pre
1386    
1387    o undid all of cp51 pending some cleanups and discussion
1388    o added the [#include "AD_CONFIG.h"] statement to all files that need
1389       it for adjoint/tl #defines
1390     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1391     o removed tools/genmake since it no longer works
1392    
1393    checkpoint51n_post
1394    o modifications to make FREEZE flux visible to pkg/kpp
1395      - moved surfaceTendencyTice from pkg/seaice to main code
1396      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1397      - subroutine FREEZE now limits only surface temperature
1398        (this means new output.txt for global_ocean.90x40x15,
1399         global_ocean.cs32x15, and global_with_exf)
1400    o added surface flux output variables to TIMEAVE_STATVARS
1401    
1402    checkpoint51n_pre
1403    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1404    o added [#include "AD_CONFIG.h"] to all files that use the following
1405      defines:
1406      - ALLOW_ADJOINT_RUN
1407      - ALLOW_TANGENTLINEAR_RUN
1408      - ALLOW_ECCO_OPTIMIZATION
1409    
1410    checkpoint51m_post
1411    o incorporating changes to get TAMC/TAF working in genmake2
1412      - added new TAMC/TAF targets to the Makefile
1413      - various cleanups related to package handling
1414      - these changes should have no impact on the forward model
1415    
1416    checkpoint51l_post
1417    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1418     - faster algorithm for cal_addtime.F
1419     - higher precision arithmetic, where needed
1420     - pkg/exf *startdate variables changed from calendar date to
1421       model integration time
1422    
1423    checkpoint51l_pre
1424    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1425    o enable to apply restoring on S & T only in a latitude band.
1426    o update output (external_forcing_surf modif. change truncation errors)
1427       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1428    
1429    checkpoint51k_post
1430    o change default to: useNHMTerms=.FALSE.
1431     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1432       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1433     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1434        exp1, ideal_2D_oce
1435     - change data file of oceanic exp (leave the results unchanged for now)
1436       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1437    o set gravitySign automatically according to the vertical coordinate used
1438      (and change sign: back to "logical" value: +1 when R increases downward)
1439    o added an include barrier to the default CPP_OPTIONS.h and
1440      removed the #include "PACKAGES_CONFIG.h" from it
1441    o fix a bug in mom_fluxform (from chk51j_post)
1442    
1443    checkpoint51j_post
1444    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1445    o adjusted some flow directives (dynamics, thermodynamics)
1446    o added cubed-sphere case to test cost function
1447    o heckpoint_lev?_directives.h now include
1448      pkg-specific directives, whenever those are enabled.
1449    o Moving pkg-specific flow directives to corresponding pkg
1450      Moving pkg-specific differentiation list to corresponding pkg
1451      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1452      ---> conventions are
1453           - pkg_ad.flow
1454           - pkg_ad_diff.list
1455           - pkg_ad_check_lev?_dir.h
1456    
1457    checkpoint51i_post
1458    o merge of the branch-genmake2
1459      - knowingly breaks the older genmake
1460      - automatic generation of all ALLOW_${PKG_NAME} defines
1461      - new testreport supersedes older testscript
1462    o large number of package inclusion and header cleanups
1463    checkpoint51i_pre
1464    
1465    o new output for adjoin of global ocean vector invariant
1466    o fix for checkpoint of thermodynamic seaice and bulk_force
1467    o Steph gchem various cleanups
1468    
1469    checkpoint 51h_pre
1470    o fixed some single quotes
1471    o modify gchem pkg to be more versatile
1472    o modifications to clean up dic pkg
1473    o add pkg/cfc
1474    
1475    checkpoint51g_post
1476    o provide links for ARPACK and ADM*TLM
1477    o start removing verification/vero/
1478    o update AD-related stuff
1479      (in particular some IF-statements in model/src/ routines)
1480    o adding to verification/global_ocean.90x40x15/ adjoint of
1481      vector invariant setup
1482    
1483    checkpoint51f_post
1484    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1485    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1486      of tracer Green's fucntions for ocean inversion project.
1487    
1488    checkpoint51f_pre
1489    o Added on-the-fly spatial interpolation capability
1490        "USE_EXF_INTERPOLATION" to pkg/exf.
1491      - This is a temporary Cartesian-grid hack until
1492        the super-duper ESMF coupler becomes available.
1493      - See verification/global_with_exf/README for usage example.
1494      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1495        flags and modified pkg/seaice accordingly.
1496    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1497        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1498        non-local transport term.
1499    
1500    checkpoint51e_post
1501    o pkg/mom_vecinv:
1502      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1503      - add time-ave diagnostic of vorticity advection.
1504    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1505    o atmospheric geopotential: - include water vapor effect;
1506                                - use p^kappa in p* scaling.
1507    o land pkg: read initial state from files.
1508    o AIM : add stratospheric drag in the upper level
1509    
1510    checkpoint51d_post
1511    o change function ILNBLNK (=> last non-blank char.) to return zero
1512      (instead of the string length) when the string. char is empty
1513    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1514    o modif's to restore TAMC compatibility
1515      - avoid "_d" constructs in PARAMETER declarations
1516      - avoid interrupting lines by comment lines
1517    o Use cluster local disks for purely local I/O
1518      vs. globally visible disks needed for ctrl stuff
1519      (merged from ecco-branch)
1520      - new active_file_loc... and mdsio_..._loc routines
1521      - affected packages: autodiff, ctrl, grdchk, mdsio
1522    
1523    checkpoint51c_post
1524    o introducing integer flag debugLevel
1525      - debLevZero: suppress all output
1526      - debLevA: standard
1527      - debLevB: equivalent to current debugMode=.TRUE.
1528    o introducing pathname variable mdsioLocalDir for mdsio
1529      that can be specified at runtime
1530      (relevant for cluster I/O to local disk)
1531    `
1532    >>>checkpoint51b_post
1533    adjoint of ptracers
1534    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1535    o extended state in checkpoint_lev?, etc.
1536    o alternative ctrl/cost with tr1 or ptracer
1537    o new comlev1_bibj_ptracers
1538    o new ptracers.flow
1539    o made ptracers_forcing same as external_forcing_s
1540    o added verification for adjoint with ptracers
1541      - adm. grdchk fail so far
1542      - tlm. grdchk OK
1543      - checked tapelev/comlev recomputations: OK
1544    <<<checkpoint51b_pre
1545    
1546    checkpoint51a_post
1547    o added code for biogeochemistry package
1548      - new pkgs: dic, gchem
1549      - new subroutine in ptracers
1550    o modify code for biogeo packages
1551      - in model/src and pkg/ptracers
1552    
1553    checkpoint51
1554    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1555      - autodiff, ctrl, exf, grdchk, seaice
1556      kept separate packages
1557      - cost, ecco, obcs
1558    o updating verification/internal_wave, verification/lab_sea
1559      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1560    
1561    checkpoint50i_post
1562    o Preparing next differentiable checkpoint and sync
1563      of MAIN vs. ecco-branch
1564      - 1st step: this one is differentiable
1565      - 2nd step: next(! not this) checkpoint will have updated packages
1566                  from ecco-branch)
1567    
1568    checkpoint50h_post
1569    o new package "land": provide surface BC for AIM.
1570    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1571    o AIM: use true log-P extrapolation for near surface temp (= as in
1572        F.Molteni paper) ; update aim.5l_cs output.
1573    o New variable in PARM03 for more flexible pickups
1574    o somewhat cleaned package initialisation sequence for
1575      ctrl/ cost/ ecco/ in packages_... routines
1576    
1577    checkpoint50g_post
1578    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1579      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1580      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1581        made the default because of faster convergence than ADI
1582    
1583    checkpoint50f_post
1584    o exf totally restructured
1585      - replaced all exf_set_ routines by one generic exf_set_gen.F
1586        and made sure it's still differentiable
1587      - split exf_getffields.F into new exf_bulkformulae.F
1588      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1589      - updated adjoint/makefile and relevant verif. accordingly
1590    
1591    checkpoint50f_pre
1592     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1593          + change Evap over land. (update aim.5l_cs output)
1594     o added missing .cvsignores and made uniform across expts
1595     o changed configuration of tidal_basin_2d expt
1596     o added pkg/debug functions for tracing code in fatal crashes
1597     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1598     o new fn in pkg/monitor to stop model if solution grows too big
1599     o removed lots of single quotes from comments
1600    
1601    checkpoint50e_post
1602    o make KPP work with PTRACERS
1603     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1604       nearly a copy of kpp_transport_s
1605     - there is no analogue to SurfaceTendencyS, so I have to use
1606       gPtr(of the surface layer) instead
1607    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1608    checkpoint50e_pre
1609    
1610    checkpoint50d_post
1611    o change kpp output from multiple-record state files to single-record state
1612      files analogous to write_state.F
1613    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1614      analogous to the cg2d-related output.
1615    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1616      so that writing to internal file fn (with length 512) fails.
1617    checkpoint50d_pre
1618    
1619    checkpoint50c_post
1620    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1621    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1622    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1623    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1624    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1625    
1626    checkpoint50c_pre
1627    Merging from release1_p13:
1628    o bug fix for pkg/seaice dynamic solver
1629    o Added SEAICE_initialHEFF to pkg/seaice
1630    
1631    checkpoint50b_post
1632    o store u*,v* in gU,V instead of in guNm1,gvNm1
1633    o in order to put the momForcing out of the Adams-Bashforth:
1634      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1635      to timestep.F
1636    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1637    o re-generate output for highly sensitive test-exp:
1638       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1639    
1640    checkpoint50b_pre
1641    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1642    o corrected CPP option mismatch in exf_Bulk... functions for case
1643      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1644    
1645    checkpoint50a_post
1646    o Bug fix for merging between c50 and KPP.
1647      ikey was passed from thermodynamics to kpp_calc via
1648      common block rather than being recomputed in kpp_calc,
1649      in contradiction with new key itdkey.
1650      New key ikppkey created, and tamc.h headers updated.
1651    
1652    checkpoint50
1653    - 2nd step of merge with ecco-branch:
1654      merge changes in ecco-branch back into main trunk
1655    - bug fix in find_alpha
1656    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1657    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1658    - merged some sliced AD support routines
1659    
1660    checkpoint49
1661    merged from ecco-branch:
1662    o exf:
1663      - Enable initialisation of forcing fields to constant
1664        (runtime) values.
1665      - in exf_getffields.F
1666        Reduce i-/j-loop to interior domain, discarding overlaps.
1667        That also fixes wrong TAF-key computations for key_1, key_2
1668        with bulf formulae.
1669      - exf_init.F modify #ifdef for exf_init_evap
1670      - exf_getffieldrec.F, ctrl_getrec.F
1671        The following INT-usages are not safe:
1672          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1673          fldcount = int(fldsecs/fldperiod) + 1
1674        and were modified.
1675    o autodiff: checkpoint_lev...
1676      - updated storing for bulk formulae (some arrays were missing)
1677      - added state for seaice package
1678      - synchronized with main branch
1679    o DIVA:
1680      Modif.s in
1681      - the_main_loop.F
1682      - the_model_main.F
1683      and added cost_final_restore.F cost_final_store.F
1684      o With these changes, it is possible to fully separate
1685        the first forward run to compute the cost function (mdthe_main_loop)
1686        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1687        into separate model executions.
1688        This enables better tuning of DIVA to given queue sizes.
1689      o Loss of cost function value in consecutive DIVA runs is
1690        fixed by storing to 'costfinal' file.
1691      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1692        beginning/end of adjoint integration is accounted for.
1693      The current changes apply to TAF-1.4.26.
1694      TAF has one remaining bug, requiring one manual change
1695      (see MITgcm manual).
1696    o cal: synchronized between MAIN and ecco-branch
1697    
1698    checkpoint48i_post
1699    o Changes to restore differentiability of code w.r.t. previous tag
1700      (mostly adding new routines to make list and replacing
1701      pressure by totPhiHyd).
1702    o Updated and merged grdchk package
1703      - has both ADM and TLM checks
1704      - works for single- and multi-proc.
1705      - output cleaned
1706      - worked successfully for parallel DIVA
1707    o genmake:
1708      - Adding -platform=SP4
1709      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1710    o Modif. for DIVA:
1711      ctrl_unpack should not be called in intermediate DIVA interval.
1712      (similar thing would apply for active files such as
1713      tbar, sbar, psbar, which should not be reinitialised;
1714      only relevant for ecco-branch)
1715    
1716    checkpoint48h_post
1717    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1718    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1719    o Added SEAICE_initialHEFF to pkg/seaice
1720    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1721    
1722    checkpoint48g_post
1723    --- EOS:
1724    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1725      store total Potential in totPhyHyd for diagnostics & EOS.
1726    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1727    --- Pressure/geopotential gradient:
1728    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1729    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1730      ( changes results of global_ocean_pressure )
1731    o NLFS + z-coord.: add eta*Rho' contribution.
1732    o accurate phiHyd when using interface-W at the middle between 2 centers
1733     ( changes results of ideal_2D_oce )
1734    o includes r* 2nd term in potential gradient.
1735    
1736    checkpoint48f_post
1737    Merging from release1_p12:
1738    o Modifications for using pkg/exf with pkg/seaice
1739      - improved description of the various forcing configurations
1740      - added basic radiation bulk formulae to pkg/exf
1741      - units/sign fix for evap computation in exf_getffields.F
1742      - updated verification/global_with_exf/results/output.txt
1743    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1744      (SBO) core products, including oceanic mass, center-of-mass,
1745      angular, and bottom pressure (see pkg/sbo/README.sbo).
1746    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1747      to avoid negative values in shallow regions.
1748      - updated verification/natl_box/results/output.txt
1749      - updated verification/lab_sea/results/output.txt
1750    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1751    o Added useSingleCpuIO option (see PARAMS.h).
1752    o Updated useSingleCpuIO option in mdsio_writefield.F to
1753      work with multi-field files, e.g., for single-file pickup.
1754    o pkg/seaice:
1755      - bug fix in growth.F: QNET for no shortwave case
1756      - added HeffFile for specifying initial sea-ice thickness
1757      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1758    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1759      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1760    o pkg/seaice:
1761      - adjoint-friendly modifications
1762      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1763    
1764    checkpoint48e_post
1765    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1766    o dynamics: change definition of computational domain & adapt mom_fluxform
1767      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1768    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1769        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1770        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1771        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1772        inverted_barometer solid-body.cs-32x32x1
1773      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1774    
1775    checkpoint48d_post
1776    o in preparation for r*:
1777     a) use pre-computed gradient of hydrostatic potential:
1778        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1779     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1780        => affects results of glob_oce_pressure (different truncation error)  
1781      update output.txt of ideal_2D_oce & global_ocean_pressure
1782    
1783    checkpoint48d_pre
1784    o in preparation for r*:
1785      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1786      pass the 2 comp. of the grad. as arguments to momentum S/R.
1787      but for the moment, only used if it does not change the results.
1788    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1789    
1790    checkpoint48c_post
1791    Modifications in treatment of initial flux forcing controls
1792    to avoid extra storing of flux fields.
1793    
1794    checkpoint48c_pre
1795    o Added tidal_basin_2d experiment (currently 1D!)
1796    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1797    
1798    checkpoint48b_post
1799    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1800     (modification to pressure gradient not yet implemented)
1801    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1802      (for U & V) that are used for vertical advection of momentum.
1803    
1804    checkpoint48a_post
1805    o In preparation for r*, use temp. array to compute vertical transport
1806       in flux-form momentum pkg. => change results of few test-exp.
1807      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1808                        lab_sea, natl_box & plume_on_slope
1809    
1810    checkpoint48
1811    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1812    
1813    checkpoint47j_post
1814    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1815    o moved adexch from forward_step to addummy_in_stepping
1816    o added exch in ctrl_map_...
1817    o aveFreq.=0. at end of cost_final to avoid overwrite in
1818      reverse checkpointing loop
1819    o Yet more changes in gmredi:
1820      * adgmredi_calc_tensor
1821        avoiding all recomputation of gmredi_slope_limit
1822      * adgmredi_x/y/rtransport
1823        added flag for excessive storing to avoid recomp. of
1824        u/v/rtans, dTdx/y/z
1825        -> this is not really necessary and very memory-consuming
1826      * adgmredi_slope_psi:
1827        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1828      * gmredi_slope_limit
1829        re-activated full calculation of taperfct for case 'ac02'
1830    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1831    
1832    checkpoint47i_post
1833    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1834    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1835      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1836    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1837    o gmredi: fix few bugs.
1838    
1839    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1840    This will be a good checkpoint to plug into the ecco-branch.
1841    o few modif.'s to get latest version adjointed
1842      (mainly kick out code in ini_linear_phisurf)
1843    o modif's to run adjoint with exactConserv
1844    o case GM_BOLUS_ADVEC should be cleaned
1845      S/R gmredi_slope_psi should be cleaned
1846    o verification/carbon now has exactConserv=.TRUE.
1847    
1848    checkpoint47g_post
1849    o time-average AIM output: becomes independent from statvars time-average
1850      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1851    o After TAF bug fix:
1852      Tested adjoint of gmredi package.
1853      Tests were done with checkpoint47 rather than with latest
1854      checkpoint47f_post since the latter is broken for the adjoint
1855      verification/carbon/ contains both ADM and TLM gradient checks.
1856    Here they are, before they get changed/lost/stolen.
1857    Mostly modif.'s to fix numerical sensitivities.
1858    Gradient checks OK for
1859    - GM_taper_scheme:
1860      * clipping
1861      * ac02
1862      * linear
1863      * glw91
1864      * dm95
1865      * ldd97
1866    - GMREDI_OPTIONS:
1867      * GM_VISBECK_VARIABLE_K
1868      * GM_NON_UNITY_DIAGONAL
1869      * GM_EXTRA_DIAGONAL
1870      * GM_BOLUS_ADVEC
1871    in conjunction with data.gmredi parameters to be checked in
1872    in a few minutes under verification/carbon/code/
1873    
1874    checkpoint47f_post
1875    Merging from release1_p10:
1876    o modifications for using pkg/exf with pkg/seaice
1877      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1878        and SEAICE_EXTERNAL_FLUXES
1879      - pkg/exf CPP options EXF_READ_EVAP and
1880        EXF_NO_BULK_COMPUTATIONS
1881      - usage examples are Experiments 8 and 9 in
1882        verification/lab_sea/README
1883      - verification/lab_sea default experiment now uses
1884        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1885    
1886    checkpoint47e_post
1887    o created a tag prior to creating a branch
1888    
1889    checkpoint47d_post
1890    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1891      at the bottom boundary had an erroneous half slip boundary condition
1892    o added bottom drag and no slip boundary condition capabilities to
1893      oceanic pressure coordinates code
1894    o added new verification experiment global_ocean_pressure, this experiment is
1895      also described in the tutorial section of the manual
1896    checkpoint47d_pre
1897    
1898    checkpoint47c_post
1899    o Added a verification experiment for a global cubed-sphere ocean run
1900      -  verification/global_ocean.cubed32x32x30
1901      -  uses pkg/therm_seaice and pkg/bulk_forcing
1902    
1903    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1904    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1905      when using P-coordinate; only implemented for atmospheric config.
1906    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1907      NOTES: requires option NONLIN_FRSURF to be "#define".
1908    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1909    
1910    checkpoint47b_post
1911    Merging from release1_p9:
1912    o pkg/seaice
1913      - removed GOTO's and added taf directives
1914      - double precision constants to reduce the g77 (Linux)
1915        to F77 (SGI) differences reported in release1_p8
1916    o tools/genmake
1917      - added SGI options
1918    o verification/testscript
1919      - updated to that of checkpoint47a_post
1920    o verification/global_ocean.90x40x15/input/eedata
1921      - modified for SGI f77 compatibility
1922    o verification/lab_sea
1923      - added description of sea-ice model
1924      - added missing matlab routines
1925      - added test of thermodynamics parallelization
1926    
1927    checkpoint47a_post
1928    o new pkg: aim_v23
1929     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1930       for now, keep the same surface forcing as before.
1931     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1932     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1933     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1934    o add diagnostic of surface correction term in monitor output
1935    
1936    o bulk_force and therm_seaice
1937    - Two packages:  bulk_force (Bulk forcing)
1938      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1939    - Earlier integration from Stephaine Dutkiewicz
1940      and Patrick Heimbach.
1941    - Two ifdef statements for compile time,
1942       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1943    
1944    checkpoint47
1945    differentiable version of checkpoint46n_post
1946    o bug fix in quasihydrostaticterms
1947    o * "clean" adjoint code (in terms of extensive recomputations)
1948        can now be obtained for all GMREDI options (i.e. for
1949        - GM_VISBECK_VARIABLE_K
1950        - GM_NON_UNITY_DIAGONAL
1951        - GM_EXTRA_DIAGONAL
1952        - GM_BOLUS_ADVEC )
1953      * However, wrong gradient check problem remains unsolved.
1954      * New CPP options have been introduced for different
1955        tapering schemes
1956    o external_fields_load now part of differentiation list
1957    o pressure needs multiple storing;
1958      would be nice to have store_pressure at beginning or
1959      end of forward_step, e.g. by having phiHyd global (5-dim.)
1960      (NB: pressure is needed for certain cases in find_rho,
1961      which is also invoked through convective_adjustment).
1962    o recomputations in find_rho for cases
1963     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1964    o #define ATMOSPHERIC_LOADING should be differentiable
1965    o ini_forcing shifted to begining of initialise_varia
1966    o Incorporating QNVS line search routines into MITgcm
1967      (this is separate code, and therefore not under pkg)
1968      lsopt/, optim/
1969    o Updated verification/carbon/
1970      - #define GM_VISBECK_VARIABLE_K
1971      - GM_taper_scheme    = 'ldd97'    
1972    
1973    checkpoint46n_post
1974    Merging from release1_p8:
1975    o verification/natl_box:
1976      updating new external_fields_load routine
1977    o New package: pkg/seaice
1978      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1979      The sea-ice code is based on Hibler (1979-1980).
1980      Two sea-ice dynamic solvers, ADI and LSR, are included.
1981      In addition to computing prognostic sea-ice variables and diagnosing
1982      the forcing/external data fields that drive the ocean model,
1983      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1984      The implied surface heat flux is then stored in variable
1985      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1986      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1987      non-local transport term.  Because this call precedes model
1988      thermodynamics, temperature under sea-ice may not be "exactly" at
1989      the freezing point by the time theta is dumped or time-averaged.
1990      N.B.: fairly large differences in accuracy occur across
1991            different platforms/compilers; comparison between
1992            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1993            generated output gives:
1994       T           S           U           V
1995      C D M    c        m  s        m  s        m  s        m  s
1996      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1997      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1998      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1999    
2000      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2001    o GAD:
2002      - generated new common blocks to account for call of
2003        same gad routines with differing traceridentities
2004        (needed to modify tracerIdentity indices in GAD.h)
2005      - generated separate common blocks for case useCubedSphereExchange
2006        (Department of Futurology)
2007      - parameter lists to gmredi_?transport: added tracerIdentity
2008      - added new key indices to tamc.h
2009    o external_fields_load:
2010      - added this routine to TAF list
2011      - needed to make some common blocks global and additional storing
2012        along the same lines as exf package (checkpoint_lev?_directives.h)
2013    o exf:
2014      updated external forcing package
2015      - bug fixes carried over from ecco-branch
2016        (missing OBCS_OPTIONS.h in two routines)
2017      - enable easy to use "no forcing".
2018      - added exf I/O for atmospheric loading
2019      - added exf I/O for runoff data
2020      - transfered scaling between exf <-> MITgcm to exf namelist
2021    o Adding new verification experiment global_with_exf.
2022      This verification experiment is almost identical to the
2023      global_ocean.90x40x15 experiment, except that it uses
2024      the exf (and cal) package instead of the
2025      external_fields_load routine (cf README file).
2026    
2027    checkpoint46m_post
2028    o modified testscript to return -- when there are no lines of "%MON" output
2029    o added new flag "quasiHydrostatic" for QH mode
2030      and new routine quasihydrostaticterms()
2031    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2032      New routine: mom_u_coriolis_nh()
2033    o fixed sign of non-hydrostatic metric terms in u and v equations.
2034      Depend on correct sign of gravitySign.
2035    o added work.pc* to .cvsignore in aim directories using ifc
2036    o introduced flag for controllin non-hydrostatic metric terms
2037    o removed gravitySign from PARM04
2038    o switched to g77/ifc from pgf77 in aim experiments
2039    
2040    checkpoint46l_post
2041    o made convective adjustment work with pressure coordinates:
2042     - changed the direction of k-loop in convective_adjustment.F for the
2043       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2044     - adjusted the reference pressure k-index in convective_adjustment.F
2045     - adjusted the convection condition in convect.F (in analogy to
2046       calc_ivdc.F)
2047     - convective_adjustment no longer computes anything on the halos
2048     - removed the warnings about negative salinity from find_rho.F and
2049       find_alpha.F; instead the new routine look_for_neg_salinity, called
2050       at the beginning of find_rho, find_alpha, and find_beta, does a
2051       check of the entire slice, if CPP-option
2052       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2053    checkpoint46l_pre
2054    
2055    checkpoint46k_post
2056    o fixed the verification/global_ocean.90x40x15 experiment:
2057     - new bathymetry (the world according to A., JMC, and M.)
2058     - new initial fields and forcing fields (*.bin files)
2059     - new POLY3.COEFFS (for the next release one should switch to a full
2060       equation of state: JMD95P or MDJWF)
2061     - fixed several errors and redundancies in the data file
2062     - experiment uses looped cells
2063     - added matlab directory with diagnostic scripts for plotting of output
2064    
2065    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2066     - read AIM physics parameters from a file (data.aimphys)
2067     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2068    
2069    checkpoint46j_post
2070    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2071    o move wVel computation at the end of the time step, in S/R integr_continuity
2072    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2073    o update timeave pkg for wVel diagnostic.
2074    checkpoint46j_pre
2075    
2076    checkpoint46i_post
2077    o Clean up AIM package (and keep the results unchanged):
2078      include CPP_OPTION and use IMPLICT NONE in all routines ;
2079      declare all the variables _RL ; use _d 0 for all numerical constants.
2080      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2081    
2082    checkpoint46h_post
2083    o cleaned up the use of rhoNil and rhoConst.
2084      - rhoNil should only appear in the LINEAR equation of state, everywhere
2085        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2086        and the dynamical equations are all divided by rhoConst
2087    o introduced new parameter rhoConstFresh, a reference density of fresh
2088      water, to remove the fresh water flux's dependence on rhoNil. The default
2089      value is 999.8 kg/m^3
2090    o cleanup up external_forcing.F and external_forcing_surf.F
2091      - can now be used by both OCEANIC and OCEANICP
2092    checkpoint46h_pre
2093    
2094     Added code to convert surface volume flux (fresh water) into
2095     a mass flux when using P coordinates in the ocean (OCEANICP).
2096     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2097    
2098    checkpoint46g_post
2099    o Include a new diagnostic variable phiHydLow for the ocean model
2100      - in z-coordinates, it is the bottom pressure anomaly
2101      - in p-coordinates, it is the sea surface elevation
2102      - in both cases, these variable have global drift, reflecting the mass
2103        drift in z-coordinates and the volume drift in p-coordinates
2104      - included time averaging for phiHydLow, be aware of the drift!
2105    o depth-dependent computation of Bo_surf for pressure coordinates
2106      in the ocean (buoyancyRelation='OCEANICP')
2107      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2108        Theta, Salinity, and Pressure in the parameter list. This routine is
2109        presently contained in find_rho.F. This routine does not give the
2110        correct density for 'POLY3', which would be a z-dependent reference
2111        density.
2112    o cleaned up find_rho
2113      - removed obsolete 'eqn' from the parameter list.
2114    o added two new verification experiments: gop and goz
2115      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2116    checkpoint46g_pre
2117    
2118    checkpoint46f_post
2119    o Enable tangent linear (forward mode) gradient checks:
2120      - extended active file handling to g_... files
2121      - added TANGENT_SIMULATION to theSimulationMode
2122      - extended grdchk package accordingly
2123    o added tangent linear setup in verification/carbon/code_ftl
2124    o added adjoint setup in verification/front_relax/code_ad
2125    
2126    checkpoint46e_post
2127    o Added new equation of state -> MDJWF
2128      - EOS of McDougall et al., 2002, JAOT, submitted
2129      - caveat: the equation of state is only valid for a smaller (more
2130        realistic?) range of values than JMD95P/Z and UNESCO
2131      - added masks to the calculation of pressure in store_pressure
2132      - added more check values for density in check_eos (ini_eos.F), some of
2133        the old check values are out of the range of the MDJWF-eos, so don't
2134        expect perfect matches for those
2135    checkpoint46e_pre
2136    
2137    checkpoint46d_post
2138    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2139      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2140      case of pressure coordinates. eosType='JMD95Z' in
2141      combination with buoyancyRelation='OCEANICP' now causes an error.
2142    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2143      in find_alpha/beta.
2144    checkpoint46d_pre
2145    
2146    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2147      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2148    
2149    checkpoint46c_post
2150    o Changes necessary for ocean in p-coordinates
2151     -  Added new buoyancy relation = 'OCEANICP'
2152     -  Added new parameters = gravitySign (this used to be contained inside
2153        the factor dRdZ which I added when we first switched to R coordinates).
2154     X GM/Redi is not compatible (yet)
2155     X bottom drag and no-slip need to be debugged.
2156    checkpoint46c_pre
2157    
2158    checkpoint46b_post
2159    o Added new equation of state -> JMD95Z and JMD95P
2160      - EOS of Jackett and McDougall, 1995, JAOT
2161      - moved all EOS parameters into EOS.h
2162      - new routines ini_eos.F, store_pressure.F
2163    o Added UNESCO EOS, but not recommended because it requires
2164      in-situ temperature (see JMD95)
2165    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2166      unesco.f to be used with POLY3
2167    checkpoint46b_pre
2168    
2169    checkpoint46a_post
2170    o Added (atmospheric) pressure loading
2171      - new field in FFIELDS.h, etc...
2172      - new cpp flag ATMOSPHERIC_LOADING
2173    o Changed hFacC to _hFacC in calc_phi_hyd.F
2174    o Added SHORTWAVE_HEATING to some files for consistency
2175    checkpoint46a_pre
2176    
2177    checkpoint46
2178    further merges from release1_p5
2179    o new ctrl package
2180      - adopted from ECCO environment to enable optimization
2181      - added Eliassen Palm fluxes to controls
2182    o added Eliassen Palm flux controls to gradient check package
2183    o cost package
2184      - Compatible with new ctrl package
2185      - added Eliassen Palm cost hooks
2186      - modif's of existing cost functions
2187    o Adjoint-related bug fixes in kpp:
2188      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2189      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2190    o autodiff package
2191      - flow directives:
2192        + new for S/R do_the_model_io
2193        + enhanced for S/R checkpoint
2194        + new gmredi.flow
2195      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2196        disable adcommon.h/g_common.h by default.
2197      - fixed problem for adjoint of global_max
2198    o modified verification/carbon/
2199    o New setup for adjoint of global_ocean
2200    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2201    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2202    o incorporated hooks for sponge layer code (external_forcing.F)
2203    
2204    checkpoint45d_post
2205    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2206    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2207      (affects plume_on_slope "cg2d" output)
2208    o add new parameter deltaTfreesurf for free-surface time stepping
2209    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2210    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2211    o change phiMin in exp1 (to agree with documentation)
2212    o add new flags:
2213     - T,S forcing inside/outside Adams-Bashforth
2214     - turn off temp,salt advection and/or forcing
2215     - for each tracer, define internal flag for multiDimAdvection & A-B
2216    o monitor: change definition of KE to check conservation of Energy
2217    
2218    checkpoint45c_post
2219    o Removed f90 comments ("!")
2220    o Modified initialisations to enable exf package for MITgcm
2221      (without invoking ECCO_PACKAGE).
2222    o modifications to gradient check package (Martin Losch)
2223      - enable centered differences
2224      - modified format of standard output
2225    
2226    checkpoint45b_post
2227    o cleaned exchange calls in cg2d
2228    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2229    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2230      to configure barotropic setup (Martin Losch)
2231    o moved some initialisations within bi,bj loop in dynamics
2232      (TAF flow dependency)
2233    o in initialise_varia, moved call packages_init_variables
2234      before convective_adjustment_init
2235      (corresponding adjustment of TAF tape initialisation).
2236    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2237    
2238    checkpoint45a_post
2239    o compute Rho over the whole domain (extend iMin,jMin indices)
2240    o specific exchange for X-slice domain (case Ny=1)
2241    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2242    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2243    
2244    checkpoint44h_post = checkpoint45
2245    o Fix to restore differentiability:
2246      place at which packages_init_variables is called in
2247      initialise_varia is crucial for reverse control flow.
2248    o modifications in GMRedi to enable stable adjoint
2249      (corresponding modif's in thermodynamics, dynamics)
2250    o added missing hook for sponge layer code in external_forcing
2251    o modified test cost functions
2252    o storing in gad_advection (plus removal of write(0,*)!
2253    o missing headers TR1.h added in convective_adjustment routines
2254    o errorMessageUnit set non-equal zero in eeboot
2255      (conflict on some platforms, e.g. IBM SP3)
2256    o modified carbon verif.
2257    
2258    checkpoint44h_pre
2259    o vertical grid option: allow to put the Interface at the middle between
2260      2 cell-centers ; replace delZ in pkg/kpp by drF.
2261    o GM Advective form: Tracers are advected using the residual transport (=
2262      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2263    
2264    checkpoint44g_post
2265    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2266      results) ; ifdef missing in thermodynamics.F
2267    
2268    checkpoint44f_pre,checkpoint44f_post
2269    o added PTRACERS package
2270      This allows an arbitrary number of passive tracers to be integrated
2271      forward simultaneously with the dynamicaly model.
2272      + Implemented so far:
2273        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2274        - I/O and checkpointing
2275        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2276      + Not implemented so far:
2277        - KPP
2278        - OBCS
2279      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2280        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2281        line in data.pkg.
2282      + This package is disabled by default since it increases storage.
2283    
2284    
2285    o testscript: added -cleanup option
2286    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2287                 b) enable to filter 2D fields.
2288    
2289    checkpoint44e_pre,post
2290    o re-wrote convective adjustment to use pre-calculated weights
2291      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2292      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2293      Original calls to convect() still in place.
2294    
2295    chkpt44d_pre,post
2296    o added missing EXCLUDE_MONITOR flags
2297    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2298      (incompatible typ in MIN/MAX expressions caused problems
2299      on IBM SP3)
2300    o in genmake added variable MAKEDEPEND
2301      plus resetting for case SunOS
2302    o added timer_stats.c routine for IBM SP3
2303    o removed variables in dynamics
2304    !!! I forgot to create tag chkpt44d_pre !!!
2305    !!! But chkpt44d_pre = chkpt44c_post    !!!
2306    
2307    o real fresh water flux implemented with non-linear free-surface.
2308    
2309    chkpt44c_pre,post
2310    o few fix (mask in shap_s2, EmPmR in external_field_load,
2311      USE_NATURAL_BCS in solve_for_P);
2312    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2313    
2314    checkpoint44b_pre/_post
2315    o merge of relevant stuff from the ecco-branch:
2316      - genmake: removed $S64 overwrite for case SunOS
2317      - pkg/exf: update and corrections for field swapping and obcs
2318      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2319                  harmonized between ECCO and MITgcm
2320      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2321                      updated checkpointing_lev... lists for obcs
2322      - model/src: minor changes in forward_step, plot_field
2323                   added directive for divided adjoint in the_main_loop
2324      - pkg/mdsio: added mdsio_gl_slice
2325    
2326    o check parameters & config (chkpt44a_pre,post)
2327    o OBC and NonLin_FrSurf.
2328    
2329    checkpoint44
2330    o fix bug in mom_vi_del2uv
2331    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2332    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2333    o update AIM experiments (NCEP input files)
2334    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2335    o added some stuff for AD
2336    
2337    checkpoint43
2338    o added two new advection tests
2339    o added global 4x4 degree ocean test
2340    o added test of H&S94 with free surface on cube
2341    o some final mods for gradient check, adjoint,...
2342    
2343    checkpoint42
2344      Fixed AD-related problems:
2345    o Store directives up-to-date with re-arranged Adams-Bashforth
2346      (mainly thermodynamics.F)
2347    o New store directives for multi-dim. advection schemes
2348      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2349      * new common block and key passkey
2350      (mainly gad_advection.F)
2351    o Modified store directives for split of dynamics/thermodynamics
2352      for the case ALLOW_KPP
2353    o Cleaned argument list for timestep_tracer.F
2354    
2355    checkpoint41
2356    o re-formatted/added comments in prologues of key subroutines
2357      to work with protex
2358    
2359    checkpoint40
2360    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2361    o added FLT (floats) package from Arne along with demo. experiment
2362    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2363      implementation of forward-in-time forcing terms
2364    o more mods for non-linear free-surface including new variable
2365    o modified multi-dim method to work on cube
2366    o bug fix in KPP (from DM)
2367    
2368    checkpoint40pre9
2369    o added DST advection schemes
2370    o fix MPI bug on SGI's
2371    o modifications for non-linear free-surface
2372    o fixed conditionals for fixed flow/passive tracer only mode
2373    o added tension/strain form of stress tensor
2374    o changes to commenting of arguments for TAF/TAMC
2375    o added/updated many matlab scripts
2376    o added multi-dimensional advection method for tracers
2377      
2378    checkpoint40pre8
2379    o new package rw/
2380      Added method for dumping intermediate local arrays:
2381      mdsio_writetile - same as mdsio_writefield except works from inside
2382                        bi,bj loop
2383      mdsio_writelocal - same as mdsio_writetile except works for local
2384                         arrays
2385      write_local_r? - higher-level wrapper for mdsio_writelocal
2386      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2387      Example given at end of mom_vecinv.F that dumps some local arrays.
2388    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2389      control flux-form versus vector invariant code.
2390      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2391      or genmake -DISABLE ...
2392    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2393      (additional storing is now needed for case vecinv;
2394      currently nothing implemented to switch this storing off
2395      in case fluxform is used since no CPP flag available).
2396    
2397    checkpoint40pre7
2398    o bug fix in dynamics.F
2399      calc_viscosity called before k=1,Nr loop.
2400    o added some #ifdef's ALLOW_PASSIVE_TRACER
2401    o cleaned initialisations in ctrl_map_ini
2402      related to TAF
2403    
2404    checkpoint40pre6
2405    o split dynamics into thermodynamics & dynamics
2406    o corresponding split of calc_diffusivity into
2407      calc_diffusivity, calc_viscosity
2408      (kpp_calc_diff, kpp_calc_visc).
2409    o Added diffkr, kapgm to control variables
2410    o bug fix in gmredi_slope_limit for ldd97
2411    
2412    checkpoint40pre5
2413    o proper initialization of Adams-Bashforth time stepping
2414      + uses forward step for very first step of model (iter=0)
2415    o re-generated *all* output since almost all output is modified by this
2416      change (sorry but we've been putting this one off for about 2 years)
2417      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2418        *not* regenerated since they are already out of date and I don't
2419        want to create the impression that they are suddenly working.
2420    o removed KAP stuff for DEC's
2421    o modified/added many .cvsignore files in */code and */input
2422    o added new expt "solid-body.cs-32x32x1"
2423      + this uses an alternative form of ini_curvilinear_grid.F which
2424        is not necessarily any better than the current one...
2425    
2426    checkpoint40pre4
2427    o added re-initialisations of utrans,vtrans,rtrans in
2428      calc_common_factors which are crucial for TAF.
2429    o extended iMin,jMin range for calc_common_factors,
2430      calc_diffusivity
2431    o added option ALLOW_PASSIVE_TRACER
2432    o a few minor updates and fixes
2433    
2434    checkpoint40pre3
2435    o created calc_gtr1.F for gad package
2436    o split the_main_loop and re-introduced forward_step
2437    o some recomputations of nIter0 for TAMC
2438    
2439    checkpoint40pre2
2440    o Updated to latest branch of AJA, JMC
2441    o Added gradient check package
2442    o Added routines for passive tracer handling
2443    o Added carbon sequestration sensitivity experiment
2444    
2445    checkpoint39
2446     o Modifications and fixes to support TAMC
2447       (mainly missing or wrong directives)
2448     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2449       in addummy_in_stepping
2450     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2451     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2452     o Included following packages:
2453       cal: calendar
2454       exf: external forcing
2455       ecco: essential routines to control use of cal, exf
2456             (NB: this is not the full ECCO environment)
2457     o disabled some packages by default in genmake
2458    
2459    checkpoint38
2460     o see notes_c37_adj.txt
2461     o corrected wrong layer index in external_forcing_t
2462     o replaced the_main_loop/forward_step by the_main_loop
2463     o removed forceoutput from write_state
2464       (replaced criteria for initial/final state)
2465     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2466    
2467    checkpoint37
2468     o mdsio.F routine split and packaged in pkg/mdsio
2469       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2470        used unless genmake -disable=mdsio)
2471     o allow a more precise surface-geopotential gradient for the atmosphere
2472       taking into account the change in space of Alpha (=1/rho) at the surface.
2473     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2474       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2475     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2476       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2477       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2478     o Time-Average diagnostics defined as a pseudo package "timeave".
2479     o pickup files : old pickup (before c35) did not work with new code (c35
2480       and after) unless activating 2 commented lines in initialise-varia.
2481     o Non-Hydrostatic pickup file Pb fixed.
2482     o bug with Rigid-lid version (since c35) fixed.  
2483    
2484    checkpoint36
2485     o implement Crank-Nickelson barotropic time-stepping
2486     o recover Time-Average diagnostics
2487     o fix Pb in checkpoint (PR#19)
2488     o AIM become a standard package ; clean unused CPP_kees
2489    
2490    checkpoint35
2491     o subtantial rewrite of dynamics.f
2492     o allows staggered time-stepping
2493     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2494     o added bottom drag (linear + quadratic)
2495    
2496    checkpoint34
2497     o Modified exchange routines for correct reverse simulation.
2498     o Added verification output to comply with bug fix in impldiff.F
2499       as of c33 (exp2, natl_box).
2500     o Corrected store directives in dynamics.F
2501     o Corrected array boundaries in impldiff.F
2502     o Corrected array dimensions in gmredi.
2503       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2504     o Added routine GLOBAL_SUM_INT to global_sum.F
2505     o Added mdsio_gl.F for ECCO purposes.
2506    
2507    checkpoint33
2508     o Fixed bug in lower BC in impldiff.F
2509     o Fixed confusion about units of forcing arrays in FFIELDS.h
2510       namely Fu,Fv,Qnet,Qsw,EmPmR:
2511       - Removed verification/natl_box/code/external_fields_scale.F
2512         (did not differ from that in model/src)
2513       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2514         (see FFIELDS.h for description)
2515       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2516         kpp_calc.F and kpp_transport_t.F
2517       - Removed model/src/external_fields_scale.F and calls to it
2518       - verification/natl_box uses flux data with "atmospheric" sign so
2519         a special version of external_fields_load.F is used to
2520         change the data as it's read in. This way, the arrays
2521         have the right units and signs at all times tha a user could
2522         possibly use them.
2523     o Corrected genmake to delete a temporary file during configuration
2524    
2525    checkpoint32
2526     o Scaling of forcing fields moved from external_forcing.F to
2527       external_fields_scale.F, called directly after loading fields.
2528     o Surface relaxation terms added to surface tendency fields in
2529       extra subroutine.
2530     o impldiff.F changed to avoid storing by TAMC of huge intermediate
2531       fields.
2532     o Changes in GMRedi to comply with packaging structure.
2533     o Modifications and bug fixes in KPP package.
2534     o Verification experiment for KPP added (verification/nat_box/)
2535    
2536    checkpoint31
2537     o Packages interface brought in line with defined standard
2538       -> new routines packages_...F
2539       -> changes in initialise_fixed.F, initialise_varia.F
2540       -> enables initialisation interface for ECCO package
2541     o Rescaling of external forcing fields immediately after read
2542       (removed from external_forcing.F)
2543       -> new: surface_fields_scale.F
2544       -> affects ini_foorcing.F, external_fields_load.F
2545     o Computation of surface tendencies before tendency updates.
2546       -> new: external_forcing_surf.F
2547     o Change of variable names useGMRedi, useKPP, useECCO
2548     o Further changes in dynamics.F, impldiff.F for TAMC
2549     o Tested for experiments 0, 2, 4.
2550       - not yet tested for GMRedi.
2551       - not yet tested for KPP.
2552    
2553    checkpoint30
2554     o Updates for OBCs
2555     o New experiment for test OBCs (internal_wave)
2556     o New output.txt in verification/exp4/results/
2557     o Updates for KPP: calculation of viscosity corrected, new variables
2558       kpp_dumpFreq and kpp_taveFreq
2559     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
2560       and entry for T90 in genmake
2561    
2562    checkpoint29
2563     o packaged KPP and GM/Redi
2564    
2565    checkpoint28
2566     o Corrected initialization of hFacMin for difference vertical coordinates
2567     o Modified calculation of partial cell thickness to more robust algorithm
2568     o config_summary.F: replaced write_1D_... by write_0D_...
2569       read_write.F: added subroutines write_0D_...
2570     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
2571       included some initialisations required for TAMC.
2572     o routine calc_isoslopes: modified sqrt computation to make it
2573       differentiable for zero argument.
2574     o routines dynamics, impldiff:
2575       included store directives and tape key computations required for TAMC.
2576     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
2577    
2578    checkpoint27
2579     o fixed calc_isoslopes() to so that cancellation of terms in tensor
2580       formulation works properly with variable resolution.
2581     o restructured the calling tree between the_model_main() and dynamics()
2582     o split initialise() into initialise_fixed() and initialise_varia()
2583     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
2584       in new routine ini_psurf()
2585    
2586    checkpoint26
2587     o moved some #ifdef in optional routines to encompass everything
2588       except the argument declarations. This was using up some memory.
2589     o fixed macros like _ADT to work with both versions of Linux cpp
2590     o cleaned up some unused and uninitialized variables
2591       (helps when debugging with strict compile options)
2592     o split up CPP_EEOPTIONS.h into options and macros
2593       (macros are now in eesupp/inc/CPP_EEMACROS.h)
2594     o patch for 2 processor JAM mode
2595    
2596    checkpoint25
2597     o updates for OBCs and NH
2598     o dramatically reduced memory usage
2599     o added "JAM" routines for use on Artic network
2600     o parameterization of convection by implicit vertical diffusion
2601     o added a diagnostic of convective index
2602     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
2603       (this is was partly for OBCs and NH but also in anticipation of
2604        an explicit free-surface option)
2605     o initial state input files for U and V
2606    
2607  checkpoint24  checkpoint24
2608   o Removed some spurious "REAL"s   o Removed some spurious "REAL"s
2609   o Updated KPP to latest version from JPL   o Updated KPP to latest version from JPL

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