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revision 1.8 by adcroft, Wed Jul 1 22:49:29 1998 UTC revision 1.606 by jmc, Fri Feb 10 00:33:31 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o fix bug (typo) in obcs_apply_eta.F
8    o add a new package shelfice which enables us to model the circulation
9      underneath shelf-ice with draughts of hundreds of meters.
10     - works
11     - to do: + include improved thermodynamics
12              + check whether kSurfC (from model/inc/SURFACE.h) can be used
13                instead of new field kTopC
14              + can we use topoFile, Ro_surf and existing code in ini_depth.F
15                instead of new field R_shelfIce and new code in ini_depth.F
16                and ini_mask_etc.F?
17    o seaice pkg:
18     - add a cpp-flag to include a simple formula for a salinity dependent
19       freezing point of sea water at the surface
20     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
21       meridional stresses are now different (and hopefully correct)
22    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
23       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
24       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
25    o pkg/diagnostics: add options and parameters for regional-statistics
26       diagnostics ; define regions by reading a region-mask from a file
27       (might add other options later)
28    o pkg/bulk_force:
29     - add option and parameters to use AIM surface-flux formulae.
30     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
31       others forcing fields (defined in PARM05, parameter file "data") are loaded
32       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
33     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
34     - use the right EXCH call for uwind,vwind (to work on CS-grid).
35     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
36       and parameters (note: calcWindStress replaces .NOT.readwindstress).
37     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
38    
39    checkpoint58
40    o add "--embed-source" option to genmake2 which, when the supporting
41      tools can be compiled (as determined by genmake2) will turn on the
42      embed_files package which then embeds the entire MITgcm source code
43      (*.[fFhc] + Makefile) used for the build within the executable
44      - requested by CNH but off by default
45      - adds a paltry <9MB to the mitgcmuv executable in most cases
46      - only writes the output when useEMBEDSRC in eedata is true
47    o clean up 3-dim. relaxation codes:
48      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
49      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
50      * Thanks to Tom Haine for testing!
51    
52    checkpoint57z_post
53    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
54      affects output (@ truncation level) of exp. plume_on_slope ; updated.
55    o fix the pickup behavior for obcs in combination with ptracers
56    o fix a bug in ptracers_external_fields_load
57    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
58      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
59    o transfered surface NH pressure to eta field (if exactConserv).
60    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
61         and update lab_sea output.txt file.
62    o completing 3-dim. relaxation code: additional term
63         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
64      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
65      * At compile time, in "EXF_OPTIONS.h" set
66          #define  ALLOW_CLIMTEMP_RELAXATION
67          #define  ALLOW_CLIMSALT_RELAXATION
68      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
69          tauThetaClimRelax3Dim = 15552000.0,
70          tauSaltClimRelax3Dim  = 15552000.0,
71      * 3 cases:
72          1) Use a constant-in-time 3-dim. field
73          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
74          3) Real-time relax. to time-evolving prescribed field
75    o Adding Laplacian-type smoothness constraint on
76      initial and boundary (forcing) controls (ic, bc)
77      * enable at compile-time via
78        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
79      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
80      * Absolute scale somewhat unclear so far
81      * no area weighting was included since no other cost term does so far
82    
83    checkpoint57y_post
84    First step for a NLFS adjoint
85    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
86    o new init. routines for calc_r_star, calc_surf_dr
87    o still need to deal with ini_masks_etc
88    o testreport seemed happy
89    checkpoint57y_pre
90    
91    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
92    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
93    o add new offset feature to offline pkg (plus minor cleanup)
94    o cfc fixes for final year of integration
95    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
96      be in GCHEM_OPTIONS).
97    
98    checkpoint57x_post
99    o fix testreport Pb in multiple test experiment.
100    o cleanup our namelist syntax in verification:
101      - make it more F95 standards compliant (some work still needed)
102      - allows the vast majority of our tests to work with gfortran
103    o Non-Hydrostatic:
104     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
105     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
106    o Allow to apply AB on T,S rather than on AB(gT,gS):
107     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
108     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
109       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
110     - need a "clever" read_pickup to restart from the other AB formulation
111    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
112    o remove some unused variables (reduces number of compiler warnings)
113    o adjoint
114      * Disable useVariableViscosity for adjoint for time being
115        (there are a number of extensive recomputations)
116      * Initialize certain variables needed for adjoint
117    
118    checkpoint57w_post
119    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
120                 fix the singleCpuIO RS version of MDSWRITEFIELD
121       and add a WARNING if using globalFiles=T with multi-processors.
122    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
123      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
124    o tracer advection scheme:
125      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
126       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
127       was not very convenient).
128      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
129       (further tests needed for the implicit DST & Flux-Limiter schemes).
130    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
131      and sRef for convenience, handy, when you want to initialize
132      ptracers in a large domain with a constant non-zero value. Also,
133      untangle ptracers_init.F a little.
134    
135    checkpoint57v_post
136    o change dome exp. to use variable viscosity in side-drag terms.
137    o remove all the files from the cfc_offline test since they are now
138      incorporated into tutorial_cfc_offline which has been producing
139      identical results for a few days of testing
140    o add new parameter: sideDragFactor to enable half-slip-side BC
141      and change side-drag S/R to use viscosity from mom_calc_visc
142      (can switch back by setting sideDragFactor=0.); affects results at
143      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
144       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
145    o vorticity & strain are now computed without masking, to account for
146      no-slip-side BC in variable viscosity calculation ; mask is applied
147      anyway later on, before computing advection/coriolis terms.
148    o modify exp4 to test new obcs support for reading from external files
149      and for passive tracers
150    o fix behavior of ptracers_monitor when monitor output is written to a
151      netcdf-file; still not independent of monitor.F (writes in the same
152      file).
153    o change default value of tRef (put a uniform, meaningful value for ocean
154      & atmos) and initialize sRef (was missing, as Martin mentioned).
155    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
156      to be proportional to enstrophy dissipation length.  Thus,
157       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
158      This is now consistent with Smagorinsky and with the manual.
159    
160    checkpoint57u_post
161    o OBCS and PTRACERS: add open boundary support for passive tracers
162      - either use homogenous (pseudo) v.Neumann conditions or prescribe
163        OB-values from file; this is not different from the way theta and salinity
164        are treated
165      - however, Orlanski-radiation conditions are not supported, and the model
166        will stop if you use pTracers and Orlanski at the same time.
167      - beefed up the rountine obcs_external_fields_load: now only those open
168        boundary values are overwritten with values from files for which there
169        are really files, otherwise the OB-fields remain untouched. This makes
170        it possible to use different OBs at different ends of the domain (as
171        with EXF)
172    o reduce number of exch calls in shap_filt (s2).
173    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
174      truncation level) 4/5 MLAdjust test results (11&12 digits match).
175    
176    checkpoint57t_post
177    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
178    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
179      same truncation, independent of the face number: affects affects several
180      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
181    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
182      note that biharmonic viscosity + no-slip was not tested in any experiment.
183    o fix bug in non-linear free-surf side-drag ; generate new output for
184      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
185    o make mnc honor the writeBinaryPrec flag for most kinds of output
186    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
187    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
188      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
189    o add brackets in multi-terms sum to get same truncation, independent of
190      the face number (manage to get exactly same value of gU,gV at the cs-edge)
191      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
192    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
193      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
194      a maximum grid-scale Reynolds number.  Also, changes all length calculations
195      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
196      Suggested values of viscosity parameters found in mom_calc_visc.
197      Many new viscosity diagnostics available.
198    
199    checkpoint57s_post
200    o Add clearing-house for viscosity calculations, mom_calc_visc and
201      correct numerous bugs in LeithD and Smagorinsky discretizations.  
202      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
203      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
204      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
205      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
206      The Strain-Tension form is now called with useStrainTensonVisc=.true.
207      ViscAhStrain and viscAhTension are now retired.
208    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
209    o In response to JMC's bug report, genmake2 now ignores any soft-links
210      that it finds in the *current* directory when searching for files.
211      Soft-links found in any other source directories will still work as
212      they did before.
213    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
214      a C routine to unlimit the stack size
215    o mnc-ify pkg/aim snapshot vars
216    o mnc-ify pkg/land as requested by Daniel
217    o various changes to mnc including:
218      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
219      - output can now be grouped so that all files within a group
220          change the ITER portion of their names in lock-step together
221      - can now read ("global") PER-FACE (in addition to PER-TILE) files
222          and works with both EXCH1 and EXCH2 (but needs more testing)
223      - writing works for all verification test cases w/ g77 on Linux
224    
225    checkpoint57r_post
226    o make MNC variable initialization happen earlier
227    o add diagnostics for (almost) each term of the momentum Eq.
228    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
229    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
230    o remove MINIMAL_TAVE_OUTPUT option ;
231      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
232    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
233      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
234    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
235    o add time-dependent SST, SSS control
236    o cost terms in ecco/ modularized (new cost_generic.F)
237    o cost_averages routines are modularized (new cost_averagesgeneric.F)
238    o new infrastructure for seaice model vs. obs misfits in seaice/
239      * driver from the_main_loop.F is seaice_cost_driver.F
240      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
241      * gradient check in Exp. 6a of natl_box_adjoint/
242    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
243      (see README file)
244    
245    checkpoint57q_post
246    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
247    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
248      - bug was reported by Jean-Michel and Ian Fenty
249    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
250      update exp. cpl_aim+ocn output.
251    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
252      Needed for high-res. runs with large global files
253      to be able to limit tapelev size
254    o Changed some tests for adjoint:
255      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
256      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
257      * global_ocean.90x40x15/ back to default 3-level checkpointing
258    o Modifications to enable scripted COMMON to MODULE conversion
259      * verification/OpenAD/code/ has necessary scripts and description;
260      * converts, compiles and runs successfully;
261    
262    checkpoint57p_post
263    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
264    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
265      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
266    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
267    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
268      (was already the case for dissipation with mom_vecinv,
269       and also the case for grad.PhiHyd when staggered-timeStep)
270      This will allow to put dissipation out-off the AB time-stepping.
271     Unfortunately, affects truncation error. Update output of exp. that "fails"
272      (cg2d matching number) and leave the others for later: front_relax(10),
273      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
274      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
275    
276    checkpoint57o_post
277    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
278      (2) its ready to be documented during the 20050801 DocFest
279    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
280      for ideal_2D_oce and lab_sea on linux_ia32_g77
281    o set to #undef CTRL_SET_OLD_MAXCVARS_30
282      in global1x1_tot/code_seaice_adj to access indices 32, 33
283      (worth another tag)
284    
285    checkpoint57n_post
286    o adding precip control xx_precip 32
287    o adding swflux control xx_swflux 33
288    o Replacing 10 forcing penalty cost routines by 1 generic.
289    o Implementing partitioning in time-mean and variable adjustment
290      for atmos. state.
291    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
292    o in natl_box_adjoint:
293      * updated exp 1 to 10
294        (but does not have time-mean vs. variable split results yet)
295    o updated global1x1/*_seaice_adj/
296      to incorporate latest changes
297    o enable useSingleCpuIO for mdsio vector routines
298      (applies in particular to tapelev I/O)
299    o removed inefficient K-loop in all active_file*control*.F
300    
301    checkpoint57m_post
302    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
303      and advect_cs (use EXCH-2 and standard cs-32 grid files).
304    o pkg/exch2: filling of face-corner halo regions is optional
305      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
306    
307    checkpoint57l_post
308     tag before updating tutorials (pre-release-2)
309    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
310       for output and interpolation of input fields onto model grid)
311    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
312       Affects results of exp. rotating_tank ; update output.txt.
313    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
314          and taking the square quantity and/or using a fraction-weight field.
315    o fix aim_diagnostics_init.F mate numbers.
316    o add mnc output capability to diagnostics/diagstat and update
317      our cvsignore files for the ACSII output generated
318    
319    checkpoint57k_post
320    o lab_sea now uses diagnostics package and provides a suite of
321      new EXF diagnostics output.
322    
323    checkpoint57j_post
324    o exf
325      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
326        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
327        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
328      * extended diagnostics output
329        - now includes all EXF variables
330        - hs, hl moved to common block
331        - separate S/R for diagnostics, called after ctrl vector is added
332        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
333        - EXFqnet contains true Qnet (i.e. includes qsw)
334      * updated verif. lab_sea, global_with_exf
335      * Rearranging hflux (exf_mapfields -> exf_getforcing)
336        to ensure that diagnostics sees a true EXFqnet
337    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
338    o diagnostics pkg: change pointers so that 1 diagnostic can be used
339      several times with different frequencies.
340    o mnc-ify the thsice package as requested by Daniel Enderton
341      - the monitor--MNC output needs work
342      - many attributes need to be added (most are currently blank)
343    o mnc-ify theaim_v23 package as requested by Daniel Enderton
344      - many attributes need to be added (most are currently blank)
345    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
346    o add Sadourny like discretization to the 4th.O vorticity advection scheme
347    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
348      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
349         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
350    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
351     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
352    
353    checkpoint57i_post
354    o Diagnostics package was changed: diagnostic allocation is now deactivated
355      by setting an empty file name in the namelist (used to be by setting 0 frequency)
356    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
357      add 1rst Order upwind vertical Shear.
358    o add a quick fix for A/B checkpointing in OFFLINE mode
359    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
360      end-run around the C/Fortran linking horror in eesup/src/timers.F
361    o added pkg/runclock: allows user to terminate run based on wall clock
362    o added non-hydrostatic scaling parameter: nh_am2
363    o pkg/my82: futile attempt to make results compiler-independent by adding
364      some "_d 0", etc. no effect.
365    o for mnc output, fill the 'T' coordinate var with myTime and create a
366      separate 'iter' variable for iteration count
367    o pkg/diagnostics:
368      add new capability: output of Global/Regional & per-level statistics ;
369      tested against monitor output (including land & thSIce) on various exp.
370    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
371    
372    checkpoint57h_done
373      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
374      data.diagnostics, data.gchem, data.ptracers) is done.
375    
376    o pkg/diagnostics: prepare for Global/Regional statistics.
377      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
378    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
379      and rename it: DIFFERENT_MULTIPLE
380    
381    checkpoint57h_post
382    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
383    o pkg/diagnostics: change output frequency, now in seconds (instead
384      of Nb of iterations). This requires to change data.diagnostics.
385    checkpoint57h_pre
386    
387    o in mnc, let the user create the output dir if both mnc_outdir_date
388      and mnc_outdir_num are false
389    o add fflags() to pkg/diagnostics which allows one to specify, on a
390      per-file basis, the file precision [default behavior is unchanged]
391    o added diagnostics to pkg/kpp, including computation of mixed layer
392      depth based on a temperature/density criterion
393    o updated verification/natl_box to test the new pkg/kpp diagnostics
394    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
395    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
396    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
397      not mnc -- this mistake was found by JMC and is now corrected
398    
399    checkpoint57g_post
400    o add Adams-Bashforth 3rd Order time stepping:
401      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
402      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
403    checkpoint57g_pre
404    
405    o make lambda[Theta,Salt]ClimRelax spatially varying
406      (default remains spatially uniform constant based on tau)
407    o added new control variables
408      * init. uVel, vVel, etanN
409      * lambda[Theta,Salt]ClimRelax
410    o separate masks used for ctrl_pack/unpack 'from write_grid' output
411      (suggested by G. Forget)
412    
413    checkpoint57f_post
414    o add parameter "baseTime" = model base time = time at iteration zero
415      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
416      account for baseTime shift
417    o move Coriolis arrays from PARAMS.h to GRID.h
418    checkpoint57f_pre
419    
420    o mnc-ifying the seaice package
421    o introduced an alternative length scale calculation for use in the limiting
422      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
423    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
424    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
425      as well as grad(vort3).  Made it compatible with both approximate form
426      for the cubed sphere and full form of these gradients.  Added flag
427      useFullLeith to select between approximate and full form.  
428    o add "d0" in getcon.F to reduce differences between compilers/platforms
429      update output.txt of exp. fizhi-gridalt-hs
430    o change port_rand funtion to allow to set the seed.
431    o fix obscure MNC bug involving conversion between reals and integers
432      - it caused no problems with certain (eg. gcc, ifc) compilers but the
433        new version is now more standards-compliant
434    o adjoint-related modifications
435      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
436      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
437      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
438    
439    checkpoint57e_post
440    o Adding eddy stress controls a la Ferreira et al.
441    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
442    
443    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
444      update output.txt of exp. fizhi-gridalt-hs
445    o add more "Z" dimensions and associated coordinate vars to MNC
446    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
447    o parameter calendarDumps: when set, approximate months (30-31 days) and years
448      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
449      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
450      months and years.  Requires pkg/cal.
451    o diagnostics: add pickup functionality
452      - off by default for backwards compatibility
453      - current version only uses MDSIO -- MNC will be added
454    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
455    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
456    
457    checkpoint57d_post
458    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
459    o modify verification/ideal_2D_oce so that it tests the creation of mnc
460      output from the diagnostics package
461    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
462    o make genmake2 more portable by using ".$FS" instead of ".f" for more
463      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
464    o add coordinate variables to the MNC output from the diagnostics package
465    o change MNC-flags default value: true when useMNC=TRUE
466    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
467      the ability (off by default) to read the grid information using MNC
468    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
469    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
470    o do snap-shot diagnostics at the middle of the time-interval (instead of
471      at the end).
472    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
473      new test for AIM with thSIce + slab-ocean
474    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
475    o move state variable diagnostics to the beginning of the time step ;
476      (note: still needs some work specially for snap-shot diagnostics)
477      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
478    
479    checkpoint57c_post
480    o Change testing option (-ieee) to get closer agreement between g77 & ifort
481    o generate new output.txt files on faulks with g77 & the new -ieee option
482    checkpoint57c_pre
483    
484    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
485      update output.txt of exp. global_ocean.90x40x15
486    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
487      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
488    o add saltFlux(+File) forcing capability with periodicExternalForcing
489    o allow to use pkg diagnostics for GM-Redi & ThSIce output
490    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
491    o improvements for the MNC output from DIAGNOSTICS:
492      - correct handling of the unlimitied dimension
493      - all dims now have associated coordinate variables
494      - variables located at U, V, and Corner ("Z") points are now written
495        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
496        *all* data points are output
497    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
498    o added pkg/seaice/seaice_monitor.F
499    o mdsio_readfield.F can now read files visible only to master MPI process.
500    o pkg/seaice: some test code for ice-modified ocean stress
501    o exf_getffields interpolation defaults to bilinear for all scalar forcing
502      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
503      spurious negative numbers for precipitation and humidity.  Will cause
504      some small numerical differences for integrations using pkg/exf/exf_interp.F.
505    o pkg/ctrl/
506      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
507        May be enabled via doPackDiag
508      *  introduce z-scaling of
509         + gradient (doZscalePack) and
510         + control (doZscaleUnpack)
511    o pkg/mdsio/
512      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
513      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
514    
515    checkpoint57b_post
516    o simplify options in diagnostics_fill arguments (remove weird combinations)
517    o fix MNC coordinate variables so that they now contain per-face index
518      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
519      general, EXCH2 grids are only aligned to a "local" coordinate system
520    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
521    o Implement instantaneous output within pkg diagnostics:
522      setting a negative frequency in data.diagnostics produces
523     "snap-shot" output (as opposed to time-average if freq > 0)
524    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
525      NOTE: change ptracer diagnostics name: use 2 characters to work with
526            more than 9 tracers. Add also diagnostics of advect & diffus flux.
527    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
528      becomes the coordinate variable for the 'T' dimension
529    o add CF-style coordinate variables to MNC
530      - just a first cut:  numbers are meaningless on the cubesphere and
531        missing along the T axis but otherwise it works!
532    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
533    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
534    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
535      this is based directly on what the model compute, so that the content of
536      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
537    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
538    o clean up build options files for SunOS, in particular
539      - remove -traditional from xmakedepend
540      - change -xarch=v9 to -xarch=native for f77
541      - restore use of make (not gmake)
542      - add CC=gcc if using g77
543    o changes per discussion of AM, JMC, & EH3 today:
544      - move redundant "grid" variables out of "state" -- in preparation of
545        creating proper CF-style coordinate variables and in recognition
546        that any/all grid variables can be easily copied (eg. w/NCO) from
547        the grid files into any of the other NetCDF files
548      - *always* output grid variables with MDSIO (this will eventually be
549        changed)
550      - output MNC grid file if useMNC is true
551    o every instance of _END_MASTER() has been found and replaced with
552      _END_MASTER( myThid ) in order to satisfy certain picky Sun
553      preprocessors
554    o re-arrange diagnostics pkg initialisation:
555     - allow each package to extend the available diagnostics list
556     - add some checking and fix small problems (multi-threaded, ...)
557     - new S/R diagnostics_fill (replace fill_diagnostics):
558       look through the short list of active diag. (instead of the long list)
559       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
560    
561    checkpoint57a_post
562    o this set of changes restores TAMC compatibility
563      tested for global_ocean.90x40x15 adjoint on trough
564      (what a pain)
565    
566    checkpoint57a_pre
567    o some modifs in tools/build_options for sunos
568    o call ctrl_pack for ctrl at end for optimcycle=0
569    
570    checkpoint57
571    o add horizontal bi-harmonic viscosity for vertical velocity
572      - new parameter viscA4W (defaults to viscA4)
573      - affects only non-hydrostatic code
574      - to be done: no-slip lateral boundary conditions
575    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
576    o implement Implicit Vertical advection for pTracers
577    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
578      (implemented also for implicit vertical diffusion & advection)
579    o OBCS: extend application of tracer open boundary conditions
580      to a strip beyond the boundary of width Olx/Oly
581    o add call monitor to TAF set of required calls (flow directives)
582      and include in natl_box_adjoint
583    o untangle a few ifdefs related to cost, ctrl, autodiff
584      untangel a few ALLOW_ECCO_OPTIMIZATION
585    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
586      (theta2, salt2 in ecco_cost_weights)
587    
588    checkpoint56c_post
589    o OBCS as control variables
590      - update ctrl_ad_diff.list, obcs_ad_diff.list
591      - remove balance of obcs controls from default
592      - fix index bug nobcs in ctrl_init
593      - fix dummy fields filen in ctrl_pack
594      - add dummy weights for obcs
595    o lsopt: comment out fort.94 output
596    o optim:
597      - remove unnecessary header files
598      - adjusted namelists
599      - add xerbla.F to Makefile
600    o exf:
601      - multiple modifications of exf_check_range
602      - unit change in exf_init_runoff from [m/year] to [m/s]
603    o mdsio:
604      - i/o-vector change debugLevel from debLevA to debLevB
605    
606    checkpoint56b_post
607    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
608      is called from DO_THE_MODEL_IO
609      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
610      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
611      - clean up PTRACERS_WRITE_TIMEAVE a little
612    o add another verification experiment that tests both the cfc-pkg and
613      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
614      reactive tendencies treated inline with regular timestepping
615    o testreport previously did a lousy job of comparing small numbers, so
616      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
617      implemented in the little c-progam tmp_cmpnum.c which is embedded in
618      testreport.
619    o ptracers_monitor: bug fix for MPI
620    
621    checkpoint56a_post
622    o GCHEM: finish reorganizating the package
623      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
624        (introduces another 3D-array for each passive tracer, but only if
625        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
626        gchemTendency is not needed because the timestep is done separately)
627      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
628      - GCHEM is now---more or less cleanly---separate from PTRACERS
629      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
630        so clear to me how that should be done in a general way.
631    o CFC: improve formatting of output in CFC_ATMOS
632    o PTRACERS:
633      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
634        that ALL experiments with ptracers enable can be checked. This makes
635        GCHEM_MONITOR obsolete.
636      - include a runtime parameter PTRACERS_monitorFreq that defaults to
637        monitorFreq
638      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
639    o add PTRACERS (PTR0[1-5]) to testreport output
640    o exf_check_range:
641      * default changed to .TRUE.
642      * will check values for niter0 if debLevA, every timestep if debLevB
643      * STOP in exf_check_range if 'out of range'
644      * range chosen generous to allow for potential extema
645      TBD: a version with stricter range
646           permitted range would be runtime parameters
647    o GMredi:
648      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
649      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
650      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
651    o GCHEM:
652      - move call to GCHEM_FORCING_SEP, so that it is now called before
653        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
654      - introduced a useGCHEM runtime flag and applied it everywhere.
655      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
656        this flag is now only visible within GCHEM-pkg routines.
657      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
658        be replaced by a 3D array that is computed before thermodynamics; for
659        this, the tracer ID iTracer had to be included into the parameter list
660        of ptracers_forcing
661      - set up forward_step to call gchem_forcing, that will replace
662        gchem_forcing_int in ptracers_forcing
663      - cleaning up
664    o small cleaning of exch2: remove files that are also in eesupp/src
665    
666    checkpoint56
667    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
668    o mnc: cleanup "full" files--fixes out-of-memory problem
669    o ECCO-GODAE
670      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
671      * fully merged and updated from SIO code
672        windstress sign change affects
673        - exf_inscal_[u/v]stress
674        - sign of xx_tau[u/v] adjustments
675        - signs in cost_scat
676      * ctrl_get_gen: avoid update of tau[u/v] for first few days
677      * natl_box_adjoint updated and compressed
678      * 2-level checkpoint switch added
679        (tested in EXP. 1 of natl_box_adjoint)
680      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
681    o SVD
682      * first complete, non-hacked version for SVD calculations
683      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
684        performed via direct access files admtlm_vector.it????
685        (via ctrl_[un]pack)
686      * optimcycle is used for ARPACK iteration counter
687        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
688      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
689        and add linear transforms where necessary
690      * controls are initial/final SST, SSS (can be extended; need to check
691        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
692    o mdsio: filename info to both stderr, stdout
693    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
694      from sign change
695    
696    checkpoint55j_post
697    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
698      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
699    o add consistent build directories and .cvsignore files to verification
700    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
701    o make all subroutines 30 or less characters in length for certain older
702      compilers to work (a thorough search only turns up two routines in
703      pkg/ptracers)
704    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
705      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
706    
707    checkpoint55i_post
708    o change arrays for total vertical diffusivity (2.D if explicit,
709      3.D if implicit) ; each ptracer uses its own background value.
710    o added mnc/NetCDF output capability to ocn_compon_interf
711      - added bits to verification/cpl_aim+ocn so that it can run on
712        ITRDA and other clusters without the mpirun "-wd" option
713    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
714      configuration
715    o give MNC the ability to create additional files rather than
716      exceeding a specified file size limit "MNC_MAX_FILESIZE"
717      - the default is just less than 2GB which is a practical limit
718        on many systems
719    o Compute the non-local term using either KPP vertical diffusivity (=default)
720       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
721    
722    checkpoint55h_post
723    o add verification test "vermix"
724    o remove all the *_ioinc flags and replace with the single global
725      outputTypesInclusive flag
726    o allow to set a vertical profile of vertical diffusivity for T & S
727    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
728    o useMNC moved from data.mnc to data.pkg
729    
730    checkpoint55g_post
731    o Renaming carbon AD experiments to comply with testreport conventions
732    o Updating adjoint of Held-Suarez hs94.1x64x5
733    o Fixing directives for non-ECCO forward_step, after ECCO directives
734      have been fixed to avoid recomp. of do_oceanic_phys
735      Works well for global_ocean.90x40x15,
736      but recomp. issue remains for carbon
737    o Updating adjoint output for natl_box_adjoint after
738      pkg/ecco has been modified (see taga c55d_post)
739    
740    checkpoint55f_post
741    o rename to timeave_init_fixed
742    
743    checkpoint55e_post
744    o some delicate re-shuffle of store directives to avoid one
745      extra call of do_oceanic_physics
746      affects ecco_the_main_loop.F, do_oceanic_physics.F
747      checkpoint_lev1_directives.h
748    o NB: this may break global_ocean adjoint temporarily,
749      but it is clear how to fix it. Will do later, need this now.
750    
751    checkpoint55d_post
752    o ECCO specific cost function terms (up-to-date with 1x1 runs)
753    o ecco_cost_weights is modified to 1x1 runs
754    o modifs to allow observations to be read in as
755      single file or yearly files
756    o enable to read exf forcing fields as either
757      single file or yearly files (flag useExfYearlyFields)
758    checkpoint55d_pre
759    
760    o switch between 2-level and 3-level checkpointing
761    o add ability of MNC to write local and "partial" (eg. 2D slices where
762      the full 3D field is never actually stored) arrays to NetCDF files
763      with the correct (that is, the complete multi-dimensional) set of
764      array indicies
765      - used in mom_vecinv() to write the diagFreq output
766      - tested (demonstrated) in verification/aim.5l_cs
767    o further mnc-ification
768      - add verification/lab_sea to the list with mnc setups
769      - fix undefined mnc v-names in cd_code
770      - add kpp to mnc output (both snapshot and timeave)
771    o non-hydrostatic code
772      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
773        in calc_gw.F
774      - defaults to viscAh
775      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
776        friction or Leith) in non-hydrostatic mode, as long as there is
777        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
778    o pkg/cost
779      extend simple cost functions to treat time mean quantities
780      (T,U,V) via cost_accumulate_state from cost_tile
781    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
782        be 2 times larger than the minimum size the advection scheme requires.
783        now get a perfect conservation of salt in advect_cs test-exp (updated)
784    o GGL90 (Gaspar's TKE mixed layer)
785      - add horizontal diffusion of TKE, requires exchanges in
786        do_fields_blocking_exchanges, horizontal diffusivity is zero by
787        default. In OPA there is no horizontal diffusion of TKE but the
788        mixing coefficients are computed from a horizontal average of TKE of
789        6 points or so. I think that diffusion has a little more physical
790        justification.
791      - clean up ggl90_calc in the hope of reducing memory usage (this hope
792        was in vain)
793      - mask tke-variable in ggl90_init
794    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
795    o fix biharmonic diffusion on CS-grid.
796    o more obcs stuff
797      - added obcs_external_fields_load as an alternative to the EXF-pkg option
798        for reading boundary values. This routine is called from
799        obcs_prescribe_read
800      - updated obcs_check
801      - changed sponge layer relaxation parameter units for days to seconds
802      - turned off sponge layer by default
803      - changed argument list of OBCS_CALC to myTime+deltaTclock
804      - fixed about 35 bugs in obcs_external_fields_load
805    
806    checkpoint55c_post
807    o obcs stuff
808      - new runtime flags useOBCSprescribe, useOBCSbalance
809      - re-arranged obcs_calc
810      - moved exf_getobcs to obcs_prescibe_read
811        obcs_prescibe_read is called after ORLANSKI stuff
812        and independent of it (executable can contain all).
813      - updated obcs_check
814      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
815        These may be necessary only if tangential velocities are
816        prescribed at OB, not sure, needs testing.
817    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
818      which simplifies the calls and passes the ifc check-bounds test
819    
820    checkpoint55b_post
821    o add a 2D scalar, Z location, exchange_2 routine.
822    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
823      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
824      affects advect_cs results (for the wrong reason): update output.txt
825    o use a more standard discretization for biharmonic viscosity ;
826     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
827      affects results of dome set-up: update output.txt
828    o fix gad_advection.F (CubedSphere part), back to version 1.23
829    o fix bug in mom_vi_del2uv.F (CubedSphere part).
830    
831    checkpoint55a_post
832    o merged code to
833      * prescribe/read time-dependent open boundaries
834        (works in conjunction with exf, cal)
835      * sponge layer code for open boundaries
836      * each boundary N/S/E/W now has its own CPP option
837        (healthy for the adjoint)
838    
839    checkpoint55
840    o up-to-date adjoint of previous breaks
841      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
842      - global_ocean_ebm: adjoint still needs fix (TLM ok)
843      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
844      - carbon: * remove tr1-related adjoint verification
845                * add ptracer as control variable
846    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
847      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
848    
849    checkpoint54f_post
850    o in verification/carbin/ remove experiment related to
851      ALLOW_PASSIVE_TRACER (array tr1 etc)
852      code_ad/ input_ad/ results_ad
853    
854    o add two new packages
855      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
856        + subject to optimization (memory)
857      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
858        + subject to reordering (many GOTOs in the original code)
859        + so far opps is called for every (i,j) point, and then operates in
860          the vertical; one may want to reorder the scheme in order operate in
861          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
862          fields)
863    o overhaul of IO so that we now have flags for MDSIO and/or MNC
864      - all verification tests compile and run with linux_ia32_g77
865      - defaults are compatible with current input files--nothing
866        should change if you were not previously using MNC
867      - MNC output has been added in numerous places (eg. timeave)
868        but there are still a few writes not yet do-able with MNC
869        (this is in progress)
870      - flags now allow for either/or/both use of MDSIO and MNC and
871        documentation will soon follow
872      - numerous small formatting cleanups for ProTeX
873    o add version info (via BUILD_INFO.h) to MNC and stdout
874    
875    checkpoint54e_post
876    o add two new packages
877      - pp81 (Packanowski and Philander, 1981), Richardson number and
878        stratification dependent mixing
879      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
880      - these scheme operate in a similar manner as KPP (without ghat, of
881        course), however there is only one diffusivity that is used for both
882        temperature and salinity (and passive tracers)ç
883    o add offline package
884    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
885      provided by Stephanie Dutkiewicz
886    o genmake2: add ability to search for C compilers and cleanup test output
887      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
888    
889    checkpoint54d_post
890    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
891    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
892      leading to additional shift by 5 days each year of integration
893       (i.e. leading to considerable offset over the years)
894    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
895    o start with no AB and no initial filtering (staggerTimeStep):
896      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
897    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
898      (external loading & cpl import/export stay in forward_step.F)
899    o update coupling interface to work with new staggerTimeStep
900    o change MDSIO ptracers_pickup.
901    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
902    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
903    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
904    
905    checkpoint54c_post
906    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
907      this affects (truncation error) output.txt of test-exp:
908       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
909    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
910    o change Qnet to always be the net heat flux, (+upward).
911      affects (truncation error) output of natl_box exp.: updated
912    o define the max number of passive tracers in PTRACERS_SIZE.h
913    o start to test mnc routinely in exp0
914    o add sea-ice loading (sIceLoad) as a new forcing field.
915    
916    checkpoint54b_post
917    o add testreport "-j JOBS" option for parallel builds (tested and pretty
918       impressive on Altix and Opteron systems)
919    o diagnostics can now write NetCDF files through the mnc package
920    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
921    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
922    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
923      affects (truncation error) output of lab_sea & natl_box exp.: updated
924    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
925    
926    checkpoint54a_post
927    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
928    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
929    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
930    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
931      + internal_wave (shift in writing cg2d_ini_res)
932    checkpoint54a_pre
933    
934    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
935      - modified verification/lab_sea and natl_box_adjoint accordingly
936    
937    checkpoint54
938    checkpoint53g_post
939    o prepare splitting of thermodynamics: store convect.counter in common block
940    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
941      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
942    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
943    o new parameter "nShapS": allow to treat differently S from T (nShapT)
944    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
945    o restore adjointability
946    
947    checkpoint53f_post
948    o modifications that affect AIM experiment results (update output.txt):
949      - no advection of S at top interface Nr (pkg/generic_advdiff)
950      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
951    o AIM pkg:
952      - include stability function into surf.Flux derivative relative to Tsurf
953      - calculate clear-sky radiation & surface temp. change (for diagnostics)
954    
955    checkpoint53e_post
956    o merged cylindrical coord configuration
957    o added rotating_tank experiment
958    checkpoint53e_pre
959    
960    checkpoint53d_post
961    o faulks upgraded: re-generate output.txt that have changed:
962       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
963    o Added Bryan and Lewis, 1979, vertical diffusivity profile
964    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
965    o added Sadourny discretization of Coriolis
966      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
967      - re-enabled use of omega3 (useAbsVorticity)
968    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
969      vector-invariant equations
970      - note: does *NOT* yet use same variable visc. for no-slip BC's.
971    o recoded the lateral boundary conditions for non-hydrostatic w, this time
972      hopefully without new bugs
973      - still to do: biharmonic friction for non-hydrostatic w
974    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
975    o regenerated output for global_ocean_ebm (using -ieee)
976    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
977      of mom_common/
978      - simple re-arrangement of instructions within computing loop
979    checkpoint53d_pre
980    
981    checkpoint53c_post
982    o new version of coupler for AIM+thSIce and Ocean models
983     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
984     - land: change Evaporation of snow
985     - aim with thSIce: fix bug in snow-precip.
986    o changes to calc_gw.F
987     - bug fix for w^2 term near the bottom boundary
988     - (hopefully) improve the lateral slip boundary condtions for use with
989        partial/looped cells
990      - because the bug fix changes two verification experiments anyway (exp5
991        and plume on slope), change the lateral boundary condition from half slip
992        to the value of no_slip_sides
993    o ebm package wasnt quite up to the parallel task. Fixed that.
994    o Adjoint of EBM package + verification
995      * TLM OK
996      * ADM not sufficient accuracy yet (needs further testing)
997    
998    checkpoint53b_post
999    o Commiting new energy balance model to repository
1000      * package is pkg/ebm
1001      * verif. is verification/global_ocean_ebm
1002      * references are in ebm_driver.F
1003    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1004    C        Global thermohaline circulation. Part I:
1005    C        Sensitivity to atmospheric moisture transport.
1006    C        J. Climate 12(1), 71-82
1007    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1008    C        Global thermohaline circulation. Part II:
1009    C        Sensitivity with interactive transport.
1010    C        J. Climate 12(1), 83-91
1011    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1012    C        Destabilization of the thermohaline circulation
1013    C        by atmospheric eddy transports.
1014    C        J. Climate 7(12), 1870-1882
1015    o Will need long integration testing.
1016    checkpoint53b_pre
1017    
1018    o created pkg/mom_common in preparation for variable viscosity code
1019    o renamed and split ini_mnc_io
1020    o pkg/land: only liquid water can diffuse or run-off
1021    o AIM using land: soil wetness availability account for snow
1022    o added printMapIncludesZeros to EEPARMS namelist
1023    
1024    checkpoint53a_post
1025    o restore TAMC compatiility for exf_constants.h
1026      (no usage of _d in .h)
1027    o Additional storing in KPP in an attempt to fix
1028      TAMC problem with adjoint of KPP code.
1029      (no success...)
1030      Identical code works fine with TAF.
1031    o Fixed verification/natl_box_adjoint experiments.
1032      Initial conditions for Experiments 4 and 5 are now
1033      set to "SEAICE_initialHEFF=0", which is more reasonable,
1034      and hence gives results closer to that of Experiment 2.
1035      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1036    
1037    checkpoint53
1038    o stable checkpoint with up to date adjoint
1039      TLM tests only run for 1st grdchk at the moment. Its unclear if
1040      this is a code problem or a problem with resetting code for g_
1041      variables that is being autogenerated wrong.
1042      Otherwise:
1043       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1044       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1045         are both still in chaos following their security messes.
1046    
1047    checkpoint52n_post
1048    o various build (mostly genmake2) changes including:
1049      - ability to build/run more easily within Cygwin and MacOS X
1050      - more complicated Makefiles with a stronger dependence on Gnu Make
1051    o pkg/seaice modifications
1052      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1053        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1054        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1055      - changed proxy for geostrophic velocity and updated
1056        verification/lab_sea/results/* accordingly
1057      - removed ADI dynamic solver from pkg/seaice
1058      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1059        they caused a segmentation fault under certain circumstances
1060      - removed unused field WATR
1061    o bug fix in exf-package:
1062      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1063         now reflect that.
1064    o small fixes in the cal-package:
1065      - set reference date to first of January for the 'model'-calendar
1066      - failing of cal_CheckDate in cal_FullDate now actually results in a
1067        warning
1068    o small modifications in exf-package to increase flexibility:
1069      - change climtempfreeze from a constant to a runtime parameter that
1070        is specified in data.exf_clim (default = -1.9)
1071      - introduce runtime parameter windstressmax (default = 2.0) that is
1072        specified in data.exf
1073    o fix in pkg/thsice:
1074      - update Evap (Tsf changes) to be consistent with Latent heat flux
1075      - maintain snow precipitation unchanged (even if Tsf >=0).
1076     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1077    
1078    checkpoint52m_post
1079    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1080      this does not change any of the results, because myIter=0 in swfrac always
1081      lead to jwtype=2 (the default anyway), but the call makes little sense
1082      as a default
1083    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1084    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1085      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1086    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1087    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1088    o extending useSingleCpuIO option to work with new exch2 I/O format
1089      - old-style, missing-tile I/O is still accessible by defining CPP
1090        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1091    o monitor package can write to NetCDF files and/or STDOUT
1092    o fix re-definition bug in MNC_GRID_INIT_ALL()
1093    o doc/api_reference added
1094      - a framework for building an API Reference Manual using all
1095        the "protex" comments embedded in the code
1096      - see pkg/generic_advdiff, pkg/mnc for examples
1097    o MNC:
1098      - make myThid the last argument for all subroutines
1099      - new default for the grid files: NO halos
1100      - add useMNC and other run-time flags
1101      - separate per-file-group handling of the unlimited dimension
1102      - early initialization of MNC w/ flags read at the eeboot stage
1103        and lookup tables set in initialize_fixed
1104      - write all MNC output to a freshly-created directory
1105    o thermodynamics sea-ice (thsice) is now tested with testreport.
1106    o test exp. advect_cs: use the standard cs32 grid ; update output.
1107    o Added functionality to grdchk:
1108      pick global i,j,k position (or nearest wet) where to perform check.
1109    
1110    checkpoint52l_post
1111    o new land formulation:
1112      a) use ground enthalpy as prognostic variable to ensure exact
1113         energy conservation.
1114      b) account for water temperature and for latent heat of freezing
1115         in all processes (rain, run-off, ground storage)
1116      c) compute surface and ground temperature implicitly.
1117    o aim_v23 modification for new land model:
1118      a) Treat separately land / ocean / sea-ice surface fluxes
1119         to allow implicit computation of land & sea-ice surface temp.
1120      b) add snow precipitation.
1121    checkpoint52l_pre
1122    
1123    o fix problem (when 1 tile is empty) in min/max monitor.
1124    o fix bug in timeAve (u,vZetatave in common block)
1125    o no restoring terms under ice for pkg/seaice
1126    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1127    o bug fix for pkg/seaice pickups
1128    o change MNC call locations and add coordinate attributes
1129    o mask vorticity at the corner ; affects global_ocean.cs output
1130    o fix ini_curvilinear_grid ; test CS experiments with mpi
1131    o aim.5l_cs: modify sea-ice fraction input file ; update output
1132    o exf: Adding simple range check routine for exf fields after read
1133    
1134    checkpoint52k_post
1135    o removed top-level directory "diags"
1136      - we migrated these functions to pkg/timeave a long time ago
1137    o fixed bug introduced in pkg/monitor
1138    o accuracy ctrlprec = 32 insuffient for gradient checks using
1139      averaged fields (I/O via cost_averages)
1140      -> use ctrl.h in active_file*.F to control I/O precision.
1141    o paramter list of CALL ADTHE_MAIN_LOOP
1142    o added initial do_the_model_io to ecco
1143    o set all ...Freq to zero after cost_final
1144      taveFreq, dumpFreq, pChkptFreq
1145    o MAIN and ECCO differentiability restored
1146    
1147    checkpoint52j_post
1148    o fix nchklev in tamc.h for global_ocean...
1149    o Bringing flow and store directives up-to-date
1150    o Really weird thing!
1151      call do_the_model_io from the_main_loop with parameters
1152      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1153      TAF places a faulty re-call of initialise_varia
1154      after cost_final call which should not be there!
1155    checkpoint52j_pre
1156    
1157    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1158      error messages
1159    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1160    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1161      debug output
1162    o modfied mdsio_writefield.F to handle non-global files under exch2
1163    o update AIM Cubed-Sphere exp (aim.5l_cs):
1164      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1165    o update AIM Equatorial Channel exp:
1166      use standard aim_v23 pkg and change the SST fields to be more realistic.
1167    o globalFile now works with exch2
1168    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1169      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1170    o limit timeave output for hi-res integrations
1171    
1172    checkpoint52i_post
1173    o removed CPP_EEOPTIONS.h from verification/*/code
1174    o updated the tiling for global_ocean_pressure
1175    checkpoint52i_pre
1176    
1177    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1178      the old pkg/aim).
1179    
1180    checkpoint52h_pre
1181    o shortened offending lines in exch2_send_rx?.template
1182    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1183    o genmake2: add build & execute test for NetCDF code
1184    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1185      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1186    o added useSingleCPUIO flag to monitor.F and mon_out.F
1187    o added temporary hack for sea-ice dynamics on the cube:
1188      metric terms are ignored and it is assumed that
1189      there is no sea-ice on cube faces 1, 2, 4, and 5.
1190    
1191    checkpoint52f_post
1192    o added exch2 cube routines to pkg/exch2
1193    o modified hs94.cs-32x32x5 to use it
1194    o added new grid files to hs94.cs-32x32x5
1195    checkpoint52f_pre
1196    
1197    checkpoint52e_post
1198    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1199      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1200    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1201      to work with implicit vertical advection and AB ;
1202    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1203    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1204     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1205    checkpoint52e_pre
1206    
1207    o fix bug in impldiff when Nr=1 or Nr=2.
1208    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1209    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1210    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1211      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1212    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1213    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1214    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1215    
1216    checkpoint52d_post
1217    o re-tiled many expts to allow comparison in multi-processor mode
1218      - updated output accordingly
1219      - changed hs94.128x64x5 to use intial T from file rather than use the
1220        random number generator
1221    o add infrastructure in model routines for fizhi and gridalt packages
1222    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1223    o changes to permit hi-res, cubed-sphere, configuration
1224      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1225      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1226      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1227        of surface winds for the cube
1228      (A verification experiment, based on global_ocean.cs32x15, but with
1229       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1230       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1231       complete with example surface forcing files and matlab scripts to look
1232       at the output and compare it with that of global_ocean.cs32x15.)
1233    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1234       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1235       to conform to the common rule.
1236    o check-in the first version of the coupler + interfaces for multi-components
1237       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1238       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1239       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1240       - ocean and atmos. share the same horizontal grid (no interpolation).
1241       - exchanges between component and coupler is done in forward_step
1242    o new verification experiment, cpl_aim+ocn:
1243       coupled ocean - AIM atmosphere on cs32 grid.
1244    
1245    checkpoint52d_pre
1246    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1247    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1248    
1249    checkpoint52c_post
1250    o Fixing OPTIONS files for use of exf:
1251      - ALLOW_ECCO not needed
1252      - ECCO_CPPOPTIONS.h should not be included from
1253        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1254        as has been the case in the past
1255      - All cal/exf related options are currently set in
1256        single header file. Should remain so until we
1257        agree on a consistent new policy.
1258    o Removed all CPP options for cal package.
1259      cal has no more CPP options.
1260    o modified STOREs in GAD_ADVECTION
1261    o corrected key comp. for passkey
1262    
1263    checkpoint52b_post
1264    o new version: "thsice" of thermodynamic sea-ice pkg:
1265     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1266     - modify fluxes but do not change theta directly;
1267     - light cleaning of bulk_force pkg (still needed with thsice).
1268     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1269       + output_thsice.txt to test thsice & bulk_force pkgs.
1270    o put back grid & coriolis monitor output.
1271    checkpoint52b_pre
1272    
1273    o call "do_the_model_io" at the beginning (=> dump initial state)
1274    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1275    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1276      (need info on NUMBER_OF_PTRACERS)
1277    o missing PTRACERS headers in some routines
1278    o default tamc.h in pkg/autodiff supposed to crash
1279      to ensure proper customization
1280    
1281    checkpoint52a_post
1282    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1283      - moved surfaceTendencyTice from pkg/seaice to main code
1284      - subroutine FREEZE_SURFACE now limits only surface temperature
1285        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1286        => new output.txt for global_ocean.cs32x15 & global_with_exf
1287      - keep the old version of FREEZE for backward compatibility;
1288        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1289      - corresponding modifs for TAF directives
1290    o added surface flux output variables to TIMEAVE_STATVARS
1291    o time-averaged output for pkg/ptracers
1292    o fix problem with ECCO-related divided adjoint
1293      snapshot file was missing some ad-variables,
1294      but no warning issued by TAF
1295    
1296    checkpoint52a_pre
1297    o some bug fixes for #undef REAL4_IS_SLOW
1298    
1299    checkpoint52 = ecco_c52_e35
1300    o after testing adjoints of checkpoint51u_post
1301    
1302    checkpoint51u_post
1303    o this is the post-merge tag of the ecco-branch
1304      (needs another clean checkout and re-testing)
1305    o various natl_box_adjoint configs and results
1306      but no input fields
1307    o obcs adjoint not yet merged!
1308    o adding ECCO global 1x1 and 2x2 degree configs
1309    o updated/extended some store directives for seaice
1310    o pkg/ecco now containes ecco-specific part of cost function
1311    o top level routines the_main_loop, forward_step
1312      supersede those in model/src/
1313      previous input data.cost now in data.ecco
1314      (new namelist ecco_cost_nml)
1315    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1316    
1317    checkpoint51t_post
1318    o this is the pre-merge tag of the ecco-branch
1319    
1320    checkpoint51s_post
1321    o cleanup: removed various obsolete #define-s
1322    o pkg/grdchk
1323      - renamed 'ph-grd 3' to 'grad-res'
1324      - merged from ecco-branch
1325        (remaining bug fixes for obcs gradient checks)
1326      - additional high-precision output for testreport
1327        (grep for 'precision_grdchk_result')
1328    
1329    checkpoint51r_post
1330    o cleaned up or removed CPP_OPTIONS.h files
1331    o updated results for some of the tests to reflect the new
1332      optfiles (-ieee: -O0 instead of -O3)
1333    
1334    checkpoint51q_post
1335    o cd_code:
1336      - moved cd_scheme.F -> cd_code_scheme.F
1337      - separate read_checkpoint from cd_code_ini_vars.F
1338      - separated cd_code part from write_checkpoint
1339      - updated AD_SOURCE, generated .flow
1340      - added CD_CODE_VARS.h to the_main_loop
1341      - Moving cd_code specific store dir.s to pkg/cd_code
1342    o ctrl package totally restructured
1343      - pack/unpack now optional and decoupled from
1344        xx_/adxx_ I/O
1345      - ctrl_pack/unpack cleaned
1346        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1347      - confined inclusion of AD_CONFIG.h to where necessary.
1348    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1349    
1350    checkpoint51p_post
1351    o create initial cd_code package
1352      - WARNING: the initialization of fields within packages
1353        is broken because INI_FIELDS (where READ_CHECKPOINT is
1354        called) is called *before* PACKAGES_INIT_VARIABLES.
1355        This seems to be backwards since
1356        1) its important to initially zero the entire field including
1357           the "halo" region
1358        2) zeroing needs to be done *before* reading pickup info
1359           and the pickup call might or might not happen in any
1360           particular run
1361      - this needs an overhaul for R2
1362    o cleanup verification/*/code/GMREDI_OPTIONS.h
1363    o cleanup testreport
1364    
1365    checkpoint51o_post
1366    o bringing AD-related verif's up to date with genmake2
1367      - carbon/
1368      - global_ocean.90x40x15/
1369      - hs.94.1x64x5/
1370      - (front_relax/ )
1371    o (more) consistent directory structure for AD-related verif.'s
1372    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1373    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1374    o bug fix in find_alpha.F for MDJWF:
1375      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1376        change rho -> rho-rhoConst
1377      - replace call find_rho to find_rhonum
1378    o initialisation of rFlx extended to full array (required by TAF)
1379      and shifted to thermodynamics
1380    o removed PTRACERS.h in ptracers routine
1381    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1382    o Correcting initialisations for fVerU, fVerV.
1383    o helping TAF to recognize dependency on kUp for
1384      fVerU, fVerV
1385    o Replacing delZ by delR in pkg/ctrl/
1386    checkpoint51o_pre
1387    
1388    o undid all of cp51 pending some cleanups and discussion
1389    o added the [#include "AD_CONFIG.h"] statement to all files that need
1390       it for adjoint/tl #defines
1391     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1392     o removed tools/genmake since it no longer works
1393    
1394    checkpoint51n_post
1395    o modifications to make FREEZE flux visible to pkg/kpp
1396      - moved surfaceTendencyTice from pkg/seaice to main code
1397      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1398      - subroutine FREEZE now limits only surface temperature
1399        (this means new output.txt for global_ocean.90x40x15,
1400         global_ocean.cs32x15, and global_with_exf)
1401    o added surface flux output variables to TIMEAVE_STATVARS
1402    
1403    checkpoint51n_pre
1404    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1405    o added [#include "AD_CONFIG.h"] to all files that use the following
1406      defines:
1407      - ALLOW_ADJOINT_RUN
1408      - ALLOW_TANGENTLINEAR_RUN
1409      - ALLOW_ECCO_OPTIMIZATION
1410    
1411    checkpoint51m_post
1412    o incorporating changes to get TAMC/TAF working in genmake2
1413      - added new TAMC/TAF targets to the Makefile
1414      - various cleanups related to package handling
1415      - these changes should have no impact on the forward model
1416    
1417    checkpoint51l_post
1418    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1419     - faster algorithm for cal_addtime.F
1420     - higher precision arithmetic, where needed
1421     - pkg/exf *startdate variables changed from calendar date to
1422       model integration time
1423    
1424    checkpoint51l_pre
1425    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1426    o enable to apply restoring on S & T only in a latitude band.
1427    o update output (external_forcing_surf modif. change truncation errors)
1428       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1429    
1430    checkpoint51k_post
1431    o change default to: useNHMTerms=.FALSE.
1432     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1433       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1434     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1435        exp1, ideal_2D_oce
1436     - change data file of oceanic exp (leave the results unchanged for now)
1437       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1438    o set gravitySign automatically according to the vertical coordinate used
1439      (and change sign: back to "logical" value: +1 when R increases downward)
1440    o added an include barrier to the default CPP_OPTIONS.h and
1441      removed the #include "PACKAGES_CONFIG.h" from it
1442    o fix a bug in mom_fluxform (from chk51j_post)
1443    
1444    checkpoint51j_post
1445    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1446    o adjusted some flow directives (dynamics, thermodynamics)
1447    o added cubed-sphere case to test cost function
1448    o heckpoint_lev?_directives.h now include
1449      pkg-specific directives, whenever those are enabled.
1450    o Moving pkg-specific flow directives to corresponding pkg
1451      Moving pkg-specific differentiation list to corresponding pkg
1452      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1453      ---> conventions are
1454           - pkg_ad.flow
1455           - pkg_ad_diff.list
1456           - pkg_ad_check_lev?_dir.h
1457    
1458    checkpoint51i_post
1459    o merge of the branch-genmake2
1460      - knowingly breaks the older genmake
1461      - automatic generation of all ALLOW_${PKG_NAME} defines
1462      - new testreport supersedes older testscript
1463    o large number of package inclusion and header cleanups
1464    checkpoint51i_pre
1465    
1466    o new output for adjoin of global ocean vector invariant
1467    o fix for checkpoint of thermodynamic seaice and bulk_force
1468    o Steph gchem various cleanups
1469    
1470    checkpoint 51h_pre
1471    o fixed some single quotes
1472    o modify gchem pkg to be more versatile
1473    o modifications to clean up dic pkg
1474    o add pkg/cfc
1475    
1476    checkpoint51g_post
1477    o provide links for ARPACK and ADM*TLM
1478    o start removing verification/vero/
1479    o update AD-related stuff
1480      (in particular some IF-statements in model/src/ routines)
1481    o adding to verification/global_ocean.90x40x15/ adjoint of
1482      vector invariant setup
1483    
1484    checkpoint51f_post
1485    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1486    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1487      of tracer Green's fucntions for ocean inversion project.
1488    
1489    checkpoint51f_pre
1490    o Added on-the-fly spatial interpolation capability
1491        "USE_EXF_INTERPOLATION" to pkg/exf.
1492      - This is a temporary Cartesian-grid hack until
1493        the super-duper ESMF coupler becomes available.
1494      - See verification/global_with_exf/README for usage example.
1495      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1496        flags and modified pkg/seaice accordingly.
1497    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1498        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1499        non-local transport term.
1500    
1501    checkpoint51e_post
1502    o pkg/mom_vecinv:
1503      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1504      - add time-ave diagnostic of vorticity advection.
1505    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1506    o atmospheric geopotential: - include water vapor effect;
1507                                - use p^kappa in p* scaling.
1508    o land pkg: read initial state from files.
1509    o AIM : add stratospheric drag in the upper level
1510    
1511    checkpoint51d_post
1512    o change function ILNBLNK (=> last non-blank char.) to return zero
1513      (instead of the string length) when the string. char is empty
1514    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1515    o modif's to restore TAMC compatibility
1516      - avoid "_d" constructs in PARAMETER declarations
1517      - avoid interrupting lines by comment lines
1518    o Use cluster local disks for purely local I/O
1519      vs. globally visible disks needed for ctrl stuff
1520      (merged from ecco-branch)
1521      - new active_file_loc... and mdsio_..._loc routines
1522      - affected packages: autodiff, ctrl, grdchk, mdsio
1523    
1524    checkpoint51c_post
1525    o introducing integer flag debugLevel
1526      - debLevZero: suppress all output
1527      - debLevA: standard
1528      - debLevB: equivalent to current debugMode=.TRUE.
1529    o introducing pathname variable mdsioLocalDir for mdsio
1530      that can be specified at runtime
1531      (relevant for cluster I/O to local disk)
1532    `
1533    >>>checkpoint51b_post
1534    adjoint of ptracers
1535    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1536    o extended state in checkpoint_lev?, etc.
1537    o alternative ctrl/cost with tr1 or ptracer
1538    o new comlev1_bibj_ptracers
1539    o new ptracers.flow
1540    o made ptracers_forcing same as external_forcing_s
1541    o added verification for adjoint with ptracers
1542      - adm. grdchk fail so far
1543      - tlm. grdchk OK
1544      - checked tapelev/comlev recomputations: OK
1545    <<<checkpoint51b_pre
1546    
1547    checkpoint51a_post
1548    o added code for biogeochemistry package
1549      - new pkgs: dic, gchem
1550      - new subroutine in ptracers
1551    o modify code for biogeo packages
1552      - in model/src and pkg/ptracers
1553    
1554    checkpoint51
1555    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1556      - autodiff, ctrl, exf, grdchk, seaice
1557      kept separate packages
1558      - cost, ecco, obcs
1559    o updating verification/internal_wave, verification/lab_sea
1560      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1561    
1562    checkpoint50i_post
1563    o Preparing next differentiable checkpoint and sync
1564      of MAIN vs. ecco-branch
1565      - 1st step: this one is differentiable
1566      - 2nd step: next(! not this) checkpoint will have updated packages
1567                  from ecco-branch)
1568    
1569    checkpoint50h_post
1570    o new package "land": provide surface BC for AIM.
1571    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1572    o AIM: use true log-P extrapolation for near surface temp (= as in
1573        F.Molteni paper) ; update aim.5l_cs output.
1574    o New variable in PARM03 for more flexible pickups
1575    o somewhat cleaned package initialisation sequence for
1576      ctrl/ cost/ ecco/ in packages_... routines
1577    
1578    checkpoint50g_post
1579    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1580      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1581      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1582        made the default because of faster convergence than ADI
1583    
1584    checkpoint50f_post
1585    o exf totally restructured
1586      - replaced all exf_set_ routines by one generic exf_set_gen.F
1587        and made sure it's still differentiable
1588      - split exf_getffields.F into new exf_bulkformulae.F
1589      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1590      - updated adjoint/makefile and relevant verif. accordingly
1591    
1592    checkpoint50f_pre
1593     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1594          + change Evap over land. (update aim.5l_cs output)
1595     o added missing .cvsignores and made uniform across expts
1596     o changed configuration of tidal_basin_2d expt
1597     o added pkg/debug functions for tracing code in fatal crashes
1598     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1599     o new fn in pkg/monitor to stop model if solution grows too big
1600     o removed lots of single quotes from comments
1601    
1602    checkpoint50e_post
1603    o make KPP work with PTRACERS
1604     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1605       nearly a copy of kpp_transport_s
1606     - there is no analogue to SurfaceTendencyS, so I have to use
1607       gPtr(of the surface layer) instead
1608    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1609    checkpoint50e_pre
1610    
1611    checkpoint50d_post
1612    o change kpp output from multiple-record state files to single-record state
1613      files analogous to write_state.F
1614    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1615      analogous to the cg2d-related output.
1616    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1617      so that writing to internal file fn (with length 512) fails.
1618    checkpoint50d_pre
1619    
1620    checkpoint50c_post
1621    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1622    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1623    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1624    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1625    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1626    
1627    checkpoint50c_pre
1628    Merging from release1_p13:
1629    o bug fix for pkg/seaice dynamic solver
1630    o Added SEAICE_initialHEFF to pkg/seaice
1631    
1632    checkpoint50b_post
1633    o store u*,v* in gU,V instead of in guNm1,gvNm1
1634    o in order to put the momForcing out of the Adams-Bashforth:
1635      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1636      to timestep.F
1637    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1638    o re-generate output for highly sensitive test-exp:
1639       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1640    
1641    checkpoint50b_pre
1642    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1643    o corrected CPP option mismatch in exf_Bulk... functions for case
1644      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1645    
1646    checkpoint50a_post
1647    o Bug fix for merging between c50 and KPP.
1648      ikey was passed from thermodynamics to kpp_calc via
1649      common block rather than being recomputed in kpp_calc,
1650      in contradiction with new key itdkey.
1651      New key ikppkey created, and tamc.h headers updated.
1652    
1653    checkpoint50
1654    - 2nd step of merge with ecco-branch:
1655      merge changes in ecco-branch back into main trunk
1656    - bug fix in find_alpha
1657    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1658    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1659    - merged some sliced AD support routines
1660    
1661    checkpoint49
1662    merged from ecco-branch:
1663    o exf:
1664      - Enable initialisation of forcing fields to constant
1665        (runtime) values.
1666      - in exf_getffields.F
1667        Reduce i-/j-loop to interior domain, discarding overlaps.
1668        That also fixes wrong TAF-key computations for key_1, key_2
1669        with bulf formulae.
1670      - exf_init.F modify #ifdef for exf_init_evap
1671      - exf_getffieldrec.F, ctrl_getrec.F
1672        The following INT-usages are not safe:
1673          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1674          fldcount = int(fldsecs/fldperiod) + 1
1675        and were modified.
1676    o autodiff: checkpoint_lev...
1677      - updated storing for bulk formulae (some arrays were missing)
1678      - added state for seaice package
1679      - synchronized with main branch
1680    o DIVA:
1681      Modif.s in
1682      - the_main_loop.F
1683      - the_model_main.F
1684      and added cost_final_restore.F cost_final_store.F
1685      o With these changes, it is possible to fully separate
1686        the first forward run to compute the cost function (mdthe_main_loop)
1687        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1688        into separate model executions.
1689        This enables better tuning of DIVA to given queue sizes.
1690      o Loss of cost function value in consecutive DIVA runs is
1691        fixed by storing to 'costfinal' file.
1692      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1693        beginning/end of adjoint integration is accounted for.
1694      The current changes apply to TAF-1.4.26.
1695      TAF has one remaining bug, requiring one manual change
1696      (see MITgcm manual).
1697    o cal: synchronized between MAIN and ecco-branch
1698    
1699    checkpoint48i_post
1700    o Changes to restore differentiability of code w.r.t. previous tag
1701      (mostly adding new routines to make list and replacing
1702      pressure by totPhiHyd).
1703    o Updated and merged grdchk package
1704      - has both ADM and TLM checks
1705      - works for single- and multi-proc.
1706      - output cleaned
1707      - worked successfully for parallel DIVA
1708    o genmake:
1709      - Adding -platform=SP4
1710      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1711    o Modif. for DIVA:
1712      ctrl_unpack should not be called in intermediate DIVA interval.
1713      (similar thing would apply for active files such as
1714      tbar, sbar, psbar, which should not be reinitialised;
1715      only relevant for ecco-branch)
1716    
1717    checkpoint48h_post
1718    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1719    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1720    o Added SEAICE_initialHEFF to pkg/seaice
1721    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1722    
1723    checkpoint48g_post
1724    --- EOS:
1725    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1726      store total Potential in totPhyHyd for diagnostics & EOS.
1727    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1728    --- Pressure/geopotential gradient:
1729    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1730    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1731      ( changes results of global_ocean_pressure )
1732    o NLFS + z-coord.: add eta*Rho' contribution.
1733    o accurate phiHyd when using interface-W at the middle between 2 centers
1734     ( changes results of ideal_2D_oce )
1735    o includes r* 2nd term in potential gradient.
1736    
1737    checkpoint48f_post
1738    Merging from release1_p12:
1739    o Modifications for using pkg/exf with pkg/seaice
1740      - improved description of the various forcing configurations
1741      - added basic radiation bulk formulae to pkg/exf
1742      - units/sign fix for evap computation in exf_getffields.F
1743      - updated verification/global_with_exf/results/output.txt
1744    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1745      (SBO) core products, including oceanic mass, center-of-mass,
1746      angular, and bottom pressure (see pkg/sbo/README.sbo).
1747    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1748      to avoid negative values in shallow regions.
1749      - updated verification/natl_box/results/output.txt
1750      - updated verification/lab_sea/results/output.txt
1751    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1752    o Added useSingleCpuIO option (see PARAMS.h).
1753    o Updated useSingleCpuIO option in mdsio_writefield.F to
1754      work with multi-field files, e.g., for single-file pickup.
1755    o pkg/seaice:
1756      - bug fix in growth.F: QNET for no shortwave case
1757      - added HeffFile for specifying initial sea-ice thickness
1758      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1759    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1760      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1761    o pkg/seaice:
1762      - adjoint-friendly modifications
1763      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1764    
1765    checkpoint48e_post
1766    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1767    o dynamics: change definition of computational domain & adapt mom_fluxform
1768      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1769    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1770        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1771        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1772        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1773        inverted_barometer solid-body.cs-32x32x1
1774      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1775    
1776    checkpoint48d_post
1777    o in preparation for r*:
1778     a) use pre-computed gradient of hydrostatic potential:
1779        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1780     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1781        => affects results of glob_oce_pressure (different truncation error)  
1782      update output.txt of ideal_2D_oce & global_ocean_pressure
1783    
1784    checkpoint48d_pre
1785    o in preparation for r*:
1786      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1787      pass the 2 comp. of the grad. as arguments to momentum S/R.
1788      but for the moment, only used if it does not change the results.
1789    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1790    
1791    checkpoint48c_post
1792    Modifications in treatment of initial flux forcing controls
1793    to avoid extra storing of flux fields.
1794    
1795    checkpoint48c_pre
1796    o Added tidal_basin_2d experiment (currently 1D!)
1797    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1798    
1799    checkpoint48b_post
1800    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1801     (modification to pressure gradient not yet implemented)
1802    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1803      (for U & V) that are used for vertical advection of momentum.
1804    
1805    checkpoint48a_post
1806    o In preparation for r*, use temp. array to compute vertical transport
1807       in flux-form momentum pkg. => change results of few test-exp.
1808      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1809                        lab_sea, natl_box & plume_on_slope
1810    
1811    checkpoint48
1812    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1813    
1814    checkpoint47j_post
1815    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1816    o moved adexch from forward_step to addummy_in_stepping
1817    o added exch in ctrl_map_...
1818    o aveFreq.=0. at end of cost_final to avoid overwrite in
1819      reverse checkpointing loop
1820    o Yet more changes in gmredi:
1821      * adgmredi_calc_tensor
1822        avoiding all recomputation of gmredi_slope_limit
1823      * adgmredi_x/y/rtransport
1824        added flag for excessive storing to avoid recomp. of
1825        u/v/rtans, dTdx/y/z
1826        -> this is not really necessary and very memory-consuming
1827      * adgmredi_slope_psi:
1828        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1829      * gmredi_slope_limit
1830        re-activated full calculation of taperfct for case 'ac02'
1831    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1832    
1833    checkpoint47i_post
1834    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1835    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1836      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1837    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1838    o gmredi: fix few bugs.
1839    
1840    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1841    This will be a good checkpoint to plug into the ecco-branch.
1842    o few modif.'s to get latest version adjointed
1843      (mainly kick out code in ini_linear_phisurf)
1844    o modif's to run adjoint with exactConserv
1845    o case GM_BOLUS_ADVEC should be cleaned
1846      S/R gmredi_slope_psi should be cleaned
1847    o verification/carbon now has exactConserv=.TRUE.
1848    
1849    checkpoint47g_post
1850    o time-average AIM output: becomes independent from statvars time-average
1851      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1852    o After TAF bug fix:
1853      Tested adjoint of gmredi package.
1854      Tests were done with checkpoint47 rather than with latest
1855      checkpoint47f_post since the latter is broken for the adjoint
1856      verification/carbon/ contains both ADM and TLM gradient checks.
1857    Here they are, before they get changed/lost/stolen.
1858    Mostly modif.'s to fix numerical sensitivities.
1859    Gradient checks OK for
1860    - GM_taper_scheme:
1861      * clipping
1862      * ac02
1863      * linear
1864      * glw91
1865      * dm95
1866      * ldd97
1867    - GMREDI_OPTIONS:
1868      * GM_VISBECK_VARIABLE_K
1869      * GM_NON_UNITY_DIAGONAL
1870      * GM_EXTRA_DIAGONAL
1871      * GM_BOLUS_ADVEC
1872    in conjunction with data.gmredi parameters to be checked in
1873    in a few minutes under verification/carbon/code/
1874    
1875    checkpoint47f_post
1876    Merging from release1_p10:
1877    o modifications for using pkg/exf with pkg/seaice
1878      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1879        and SEAICE_EXTERNAL_FLUXES
1880      - pkg/exf CPP options EXF_READ_EVAP and
1881        EXF_NO_BULK_COMPUTATIONS
1882      - usage examples are Experiments 8 and 9 in
1883        verification/lab_sea/README
1884      - verification/lab_sea default experiment now uses
1885        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1886    
1887    checkpoint47e_post
1888    o created a tag prior to creating a branch
1889    
1890    checkpoint47d_post
1891    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1892      at the bottom boundary had an erroneous half slip boundary condition
1893    o added bottom drag and no slip boundary condition capabilities to
1894      oceanic pressure coordinates code
1895    o added new verification experiment global_ocean_pressure, this experiment is
1896      also described in the tutorial section of the manual
1897    checkpoint47d_pre
1898    
1899    checkpoint47c_post
1900    o Added a verification experiment for a global cubed-sphere ocean run
1901      -  verification/global_ocean.cubed32x32x30
1902      -  uses pkg/therm_seaice and pkg/bulk_forcing
1903    
1904    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1905    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1906      when using P-coordinate; only implemented for atmospheric config.
1907    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1908      NOTES: requires option NONLIN_FRSURF to be "#define".
1909    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1910    
1911    checkpoint47b_post
1912    Merging from release1_p9:
1913    o pkg/seaice
1914      - removed GOTO's and added taf directives
1915      - double precision constants to reduce the g77 (Linux)
1916        to F77 (SGI) differences reported in release1_p8
1917    o tools/genmake
1918      - added SGI options
1919    o verification/testscript
1920      - updated to that of checkpoint47a_post
1921    o verification/global_ocean.90x40x15/input/eedata
1922      - modified for SGI f77 compatibility
1923    o verification/lab_sea
1924      - added description of sea-ice model
1925      - added missing matlab routines
1926      - added test of thermodynamics parallelization
1927    
1928    checkpoint47a_post
1929    o new pkg: aim_v23
1930     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1931       for now, keep the same surface forcing as before.
1932     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1933     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1934     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1935    o add diagnostic of surface correction term in monitor output
1936    
1937    o bulk_force and therm_seaice
1938    - Two packages:  bulk_force (Bulk forcing)
1939      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1940    - Earlier integration from Stephaine Dutkiewicz
1941      and Patrick Heimbach.
1942    - Two ifdef statements for compile time,
1943       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1944    
1945    checkpoint47
1946    differentiable version of checkpoint46n_post
1947    o bug fix in quasihydrostaticterms
1948    o * "clean" adjoint code (in terms of extensive recomputations)
1949        can now be obtained for all GMREDI options (i.e. for
1950        - GM_VISBECK_VARIABLE_K
1951        - GM_NON_UNITY_DIAGONAL
1952        - GM_EXTRA_DIAGONAL
1953        - GM_BOLUS_ADVEC )
1954      * However, wrong gradient check problem remains unsolved.
1955      * New CPP options have been introduced for different
1956        tapering schemes
1957    o external_fields_load now part of differentiation list
1958    o pressure needs multiple storing;
1959      would be nice to have store_pressure at beginning or
1960      end of forward_step, e.g. by having phiHyd global (5-dim.)
1961      (NB: pressure is needed for certain cases in find_rho,
1962      which is also invoked through convective_adjustment).
1963    o recomputations in find_rho for cases
1964     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1965    o #define ATMOSPHERIC_LOADING should be differentiable
1966    o ini_forcing shifted to begining of initialise_varia
1967    o Incorporating QNVS line search routines into MITgcm
1968      (this is separate code, and therefore not under pkg)
1969      lsopt/, optim/
1970    o Updated verification/carbon/
1971      - #define GM_VISBECK_VARIABLE_K
1972      - GM_taper_scheme    = 'ldd97'    
1973    
1974    checkpoint46n_post
1975    Merging from release1_p8:
1976    o verification/natl_box:
1977      updating new external_fields_load routine
1978    o New package: pkg/seaice
1979      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1980      The sea-ice code is based on Hibler (1979-1980).
1981      Two sea-ice dynamic solvers, ADI and LSR, are included.
1982      In addition to computing prognostic sea-ice variables and diagnosing
1983      the forcing/external data fields that drive the ocean model,
1984      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1985      The implied surface heat flux is then stored in variable
1986      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1987      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1988      non-local transport term.  Because this call precedes model
1989      thermodynamics, temperature under sea-ice may not be "exactly" at
1990      the freezing point by the time theta is dumped or time-averaged.
1991      N.B.: fairly large differences in accuracy occur across
1992            different platforms/compilers; comparison between
1993            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1994            generated output gives:
1995       T           S           U           V
1996      C D M    c        m  s        m  s        m  s        m  s
1997      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1998      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1999      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2000    
2001      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2002    o GAD:
2003      - generated new common blocks to account for call of
2004        same gad routines with differing traceridentities
2005        (needed to modify tracerIdentity indices in GAD.h)
2006      - generated separate common blocks for case useCubedSphereExchange
2007        (Department of Futurology)
2008      - parameter lists to gmredi_?transport: added tracerIdentity
2009      - added new key indices to tamc.h
2010    o external_fields_load:
2011      - added this routine to TAF list
2012      - needed to make some common blocks global and additional storing
2013        along the same lines as exf package (checkpoint_lev?_directives.h)
2014    o exf:
2015      updated external forcing package
2016      - bug fixes carried over from ecco-branch
2017        (missing OBCS_OPTIONS.h in two routines)
2018      - enable easy to use "no forcing".
2019      - added exf I/O for atmospheric loading
2020      - added exf I/O for runoff data
2021      - transfered scaling between exf <-> MITgcm to exf namelist
2022    o Adding new verification experiment global_with_exf.
2023      This verification experiment is almost identical to the
2024      global_ocean.90x40x15 experiment, except that it uses
2025      the exf (and cal) package instead of the
2026      external_fields_load routine (cf README file).
2027    
2028    checkpoint46m_post
2029    o modified testscript to return -- when there are no lines of "%MON" output
2030    o added new flag "quasiHydrostatic" for QH mode
2031      and new routine quasihydrostaticterms()
2032    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2033      New routine: mom_u_coriolis_nh()
2034    o fixed sign of non-hydrostatic metric terms in u and v equations.
2035      Depend on correct sign of gravitySign.
2036    o added work.pc* to .cvsignore in aim directories using ifc
2037    o introduced flag for controllin non-hydrostatic metric terms
2038    o removed gravitySign from PARM04
2039    o switched to g77/ifc from pgf77 in aim experiments
2040    
2041    checkpoint46l_post
2042    o made convective adjustment work with pressure coordinates:
2043     - changed the direction of k-loop in convective_adjustment.F for the
2044       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2045     - adjusted the reference pressure k-index in convective_adjustment.F
2046     - adjusted the convection condition in convect.F (in analogy to
2047       calc_ivdc.F)
2048     - convective_adjustment no longer computes anything on the halos
2049     - removed the warnings about negative salinity from find_rho.F and
2050       find_alpha.F; instead the new routine look_for_neg_salinity, called
2051       at the beginning of find_rho, find_alpha, and find_beta, does a
2052       check of the entire slice, if CPP-option
2053       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2054    checkpoint46l_pre
2055    
2056    checkpoint46k_post
2057    o fixed the verification/global_ocean.90x40x15 experiment:
2058     - new bathymetry (the world according to A., JMC, and M.)
2059     - new initial fields and forcing fields (*.bin files)
2060     - new POLY3.COEFFS (for the next release one should switch to a full
2061       equation of state: JMD95P or MDJWF)
2062     - fixed several errors and redundancies in the data file
2063     - experiment uses looped cells
2064     - added matlab directory with diagnostic scripts for plotting of output
2065    
2066    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2067     - read AIM physics parameters from a file (data.aimphys)
2068     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2069    
2070    checkpoint46j_post
2071    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2072    o move wVel computation at the end of the time step, in S/R integr_continuity
2073    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2074    o update timeave pkg for wVel diagnostic.
2075    checkpoint46j_pre
2076    
2077    checkpoint46i_post
2078    o Clean up AIM package (and keep the results unchanged):
2079      include CPP_OPTION and use IMPLICT NONE in all routines ;
2080      declare all the variables _RL ; use _d 0 for all numerical constants.
2081      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2082    
2083    checkpoint46h_post
2084    o cleaned up the use of rhoNil and rhoConst.
2085      - rhoNil should only appear in the LINEAR equation of state, everywhere
2086        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2087        and the dynamical equations are all divided by rhoConst
2088    o introduced new parameter rhoConstFresh, a reference density of fresh
2089      water, to remove the fresh water flux's dependence on rhoNil. The default
2090      value is 999.8 kg/m^3
2091    o cleanup up external_forcing.F and external_forcing_surf.F
2092      - can now be used by both OCEANIC and OCEANICP
2093    checkpoint46h_pre
2094    
2095     Added code to convert surface volume flux (fresh water) into
2096     a mass flux when using P coordinates in the ocean (OCEANICP).
2097     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2098    
2099    checkpoint46g_post
2100    o Include a new diagnostic variable phiHydLow for the ocean model
2101      - in z-coordinates, it is the bottom pressure anomaly
2102      - in p-coordinates, it is the sea surface elevation
2103      - in both cases, these variable have global drift, reflecting the mass
2104        drift in z-coordinates and the volume drift in p-coordinates
2105      - included time averaging for phiHydLow, be aware of the drift!
2106    o depth-dependent computation of Bo_surf for pressure coordinates
2107      in the ocean (buoyancyRelation='OCEANICP')
2108      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2109        Theta, Salinity, and Pressure in the parameter list. This routine is
2110        presently contained in find_rho.F. This routine does not give the
2111        correct density for 'POLY3', which would be a z-dependent reference
2112        density.
2113    o cleaned up find_rho
2114      - removed obsolete 'eqn' from the parameter list.
2115    o added two new verification experiments: gop and goz
2116      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2117    checkpoint46g_pre
2118    
2119    checkpoint46f_post
2120    o Enable tangent linear (forward mode) gradient checks:
2121      - extended active file handling to g_... files
2122      - added TANGENT_SIMULATION to theSimulationMode
2123      - extended grdchk package accordingly
2124    o added tangent linear setup in verification/carbon/code_ftl
2125    o added adjoint setup in verification/front_relax/code_ad
2126    
2127    checkpoint46e_post
2128    o Added new equation of state -> MDJWF
2129      - EOS of McDougall et al., 2002, JAOT, submitted
2130      - caveat: the equation of state is only valid for a smaller (more
2131        realistic?) range of values than JMD95P/Z and UNESCO
2132      - added masks to the calculation of pressure in store_pressure
2133      - added more check values for density in check_eos (ini_eos.F), some of
2134        the old check values are out of the range of the MDJWF-eos, so don't
2135        expect perfect matches for those
2136    checkpoint46e_pre
2137    
2138    checkpoint46d_post
2139    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2140      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2141      case of pressure coordinates. eosType='JMD95Z' in
2142      combination with buoyancyRelation='OCEANICP' now causes an error.
2143    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2144      in find_alpha/beta.
2145    checkpoint46d_pre
2146    
2147    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2148      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2149    
2150    checkpoint46c_post
2151    o Changes necessary for ocean in p-coordinates
2152     -  Added new buoyancy relation = 'OCEANICP'
2153     -  Added new parameters = gravitySign (this used to be contained inside
2154        the factor dRdZ which I added when we first switched to R coordinates).
2155     X GM/Redi is not compatible (yet)
2156     X bottom drag and no-slip need to be debugged.
2157    checkpoint46c_pre
2158    
2159    checkpoint46b_post
2160    o Added new equation of state -> JMD95Z and JMD95P
2161      - EOS of Jackett and McDougall, 1995, JAOT
2162      - moved all EOS parameters into EOS.h
2163      - new routines ini_eos.F, store_pressure.F
2164    o Added UNESCO EOS, but not recommended because it requires
2165      in-situ temperature (see JMD95)
2166    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2167      unesco.f to be used with POLY3
2168    checkpoint46b_pre
2169    
2170    checkpoint46a_post
2171    o Added (atmospheric) pressure loading
2172      - new field in FFIELDS.h, etc...
2173      - new cpp flag ATMOSPHERIC_LOADING
2174    o Changed hFacC to _hFacC in calc_phi_hyd.F
2175    o Added SHORTWAVE_HEATING to some files for consistency
2176    checkpoint46a_pre
2177    
2178    checkpoint46
2179    further merges from release1_p5
2180    o new ctrl package
2181      - adopted from ECCO environment to enable optimization
2182      - added Eliassen Palm fluxes to controls
2183    o added Eliassen Palm flux controls to gradient check package
2184    o cost package
2185      - Compatible with new ctrl package
2186      - added Eliassen Palm cost hooks
2187      - modif's of existing cost functions
2188    o Adjoint-related bug fixes in kpp:
2189      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2190      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2191    o autodiff package
2192      - flow directives:
2193        + new for S/R do_the_model_io
2194        + enhanced for S/R checkpoint
2195        + new gmredi.flow
2196      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2197        disable adcommon.h/g_common.h by default.
2198      - fixed problem for adjoint of global_max
2199    o modified verification/carbon/
2200    o New setup for adjoint of global_ocean
2201    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2202    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2203    o incorporated hooks for sponge layer code (external_forcing.F)
2204    
2205    checkpoint45d_post
2206    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2207    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2208      (affects plume_on_slope "cg2d" output)
2209    o add new parameter deltaTfreesurf for free-surface time stepping
2210    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2211    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2212    o change phiMin in exp1 (to agree with documentation)
2213    o add new flags:
2214     - T,S forcing inside/outside Adams-Bashforth
2215     - turn off temp,salt advection and/or forcing
2216     - for each tracer, define internal flag for multiDimAdvection & A-B
2217    o monitor: change definition of KE to check conservation of Energy
2218    
2219    checkpoint45c_post
2220    o Removed f90 comments ("!")
2221    o Modified initialisations to enable exf package for MITgcm
2222      (without invoking ECCO_PACKAGE).
2223    o modifications to gradient check package (Martin Losch)
2224      - enable centered differences
2225      - modified format of standard output
2226    
2227    checkpoint45b_post
2228    o cleaned exchange calls in cg2d
2229    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2230    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2231      to configure barotropic setup (Martin Losch)
2232    o moved some initialisations within bi,bj loop in dynamics
2233      (TAF flow dependency)
2234    o in initialise_varia, moved call packages_init_variables
2235      before convective_adjustment_init
2236      (corresponding adjustment of TAF tape initialisation).
2237    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2238    
2239    checkpoint45a_post
2240    o compute Rho over the whole domain (extend iMin,jMin indices)
2241    o specific exchange for X-slice domain (case Ny=1)
2242    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2243    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2244    
2245    checkpoint44h_post = checkpoint45
2246    o Fix to restore differentiability:
2247      place at which packages_init_variables is called in
2248      initialise_varia is crucial for reverse control flow.
2249    o modifications in GMRedi to enable stable adjoint
2250      (corresponding modif's in thermodynamics, dynamics)
2251    o added missing hook for sponge layer code in external_forcing
2252    o modified test cost functions
2253    o storing in gad_advection (plus removal of write(0,*)!
2254    o missing headers TR1.h added in convective_adjustment routines
2255    o errorMessageUnit set non-equal zero in eeboot
2256      (conflict on some platforms, e.g. IBM SP3)
2257    o modified carbon verif.
2258    
2259    checkpoint44h_pre
2260    o vertical grid option: allow to put the Interface at the middle between
2261      2 cell-centers ; replace delZ in pkg/kpp by drF.
2262    o GM Advective form: Tracers are advected using the residual transport (=
2263      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2264    
2265    checkpoint44g_post
2266    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2267      results) ; ifdef missing in thermodynamics.F
2268    
2269    checkpoint44f_pre,checkpoint44f_post
2270    o added PTRACERS package
2271      This allows an arbitrary number of passive tracers to be integrated
2272      forward simultaneously with the dynamicaly model.
2273      + Implemented so far:
2274        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2275        - I/O and checkpointing
2276        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2277      + Not implemented so far:
2278        - KPP
2279        - OBCS
2280      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2281        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2282        line in data.pkg.
2283      + This package is disabled by default since it increases storage.
2284    
2285    
2286    o testscript: added -cleanup option
2287    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2288                 b) enable to filter 2D fields.
2289    
2290    checkpoint44e_pre,post
2291    o re-wrote convective adjustment to use pre-calculated weights
2292      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2293      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2294      Original calls to convect() still in place.
2295    
2296    chkpt44d_pre,post
2297    o added missing EXCLUDE_MONITOR flags
2298    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2299      (incompatible typ in MIN/MAX expressions caused problems
2300      on IBM SP3)
2301    o in genmake added variable MAKEDEPEND
2302      plus resetting for case SunOS
2303    o added timer_stats.c routine for IBM SP3
2304    o removed variables in dynamics
2305    !!! I forgot to create tag chkpt44d_pre !!!
2306    !!! But chkpt44d_pre = chkpt44c_post    !!!
2307    
2308    o real fresh water flux implemented with non-linear free-surface.
2309    
2310    chkpt44c_pre,post
2311    o few fix (mask in shap_s2, EmPmR in external_field_load,
2312      USE_NATURAL_BCS in solve_for_P);
2313    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2314    
2315    checkpoint44b_pre/_post
2316    o merge of relevant stuff from the ecco-branch:
2317      - genmake: removed $S64 overwrite for case SunOS
2318      - pkg/exf: update and corrections for field swapping and obcs
2319      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2320                  harmonized between ECCO and MITgcm
2321      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2322                      updated checkpointing_lev... lists for obcs
2323      - model/src: minor changes in forward_step, plot_field
2324                   added directive for divided adjoint in the_main_loop
2325      - pkg/mdsio: added mdsio_gl_slice
2326    
2327    o check parameters & config (chkpt44a_pre,post)
2328    o OBC and NonLin_FrSurf.
2329    
2330    checkpoint44
2331    o fix bug in mom_vi_del2uv
2332    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2333    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2334    o update AIM experiments (NCEP input files)
2335    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2336    o added some stuff for AD
2337    
2338    checkpoint43
2339    o added two new advection tests
2340    o added global 4x4 degree ocean test
2341    o added test of H&S94 with free surface on cube
2342    o some final mods for gradient check, adjoint,...
2343    
2344    checkpoint42
2345      Fixed AD-related problems:
2346    o Store directives up-to-date with re-arranged Adams-Bashforth
2347      (mainly thermodynamics.F)
2348    o New store directives for multi-dim. advection schemes
2349      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2350      * new common block and key passkey
2351      (mainly gad_advection.F)
2352    o Modified store directives for split of dynamics/thermodynamics
2353      for the case ALLOW_KPP
2354    o Cleaned argument list for timestep_tracer.F
2355    
2356    checkpoint41
2357    o re-formatted/added comments in prologues of key subroutines
2358      to work with protex
2359    
2360    checkpoint40
2361    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2362    o added FLT (floats) package from Arne along with demo. experiment
2363    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2364      implementation of forward-in-time forcing terms
2365    o more mods for non-linear free-surface including new variable
2366    o modified multi-dim method to work on cube
2367    o bug fix in KPP (from DM)
2368    
2369    checkpoint40pre9
2370    o added DST advection schemes
2371    o fix MPI bug on SGI's
2372    o modifications for non-linear free-surface
2373    o fixed conditionals for fixed flow/passive tracer only mode
2374    o added tension/strain form of stress tensor
2375    o changes to commenting of arguments for TAF/TAMC
2376    o added/updated many matlab scripts
2377    o added multi-dimensional advection method for tracers
2378      
2379    checkpoint40pre8
2380    o new package rw/
2381      Added method for dumping intermediate local arrays:
2382      mdsio_writetile - same as mdsio_writefield except works from inside
2383                        bi,bj loop
2384      mdsio_writelocal - same as mdsio_writetile except works for local
2385                         arrays
2386      write_local_r? - higher-level wrapper for mdsio_writelocal
2387      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2388      Example given at end of mom_vecinv.F that dumps some local arrays.
2389    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2390      control flux-form versus vector invariant code.
2391      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2392      or genmake -DISABLE ...
2393    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2394      (additional storing is now needed for case vecinv;
2395      currently nothing implemented to switch this storing off
2396      in case fluxform is used since no CPP flag available).
2397    
2398    checkpoint40pre7
2399    o bug fix in dynamics.F
2400      calc_viscosity called before k=1,Nr loop.
2401    o added some #ifdef's ALLOW_PASSIVE_TRACER
2402    o cleaned initialisations in ctrl_map_ini
2403      related to TAF
2404    
2405    checkpoint40pre6
2406    o split dynamics into thermodynamics & dynamics
2407    o corresponding split of calc_diffusivity into
2408      calc_diffusivity, calc_viscosity
2409      (kpp_calc_diff, kpp_calc_visc).
2410    o Added diffkr, kapgm to control variables
2411    o bug fix in gmredi_slope_limit for ldd97
2412    
2413    checkpoint40pre5
2414    o proper initialization of Adams-Bashforth time stepping
2415      + uses forward step for very first step of model (iter=0)
2416    o re-generated *all* output since almost all output is modified by this
2417      change (sorry but we've been putting this one off for about 2 years)
2418      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2419        *not* regenerated since they are already out of date and I don't
2420        want to create the impression that they are suddenly working.
2421    o removed KAP stuff for DEC's
2422    o modified/added many .cvsignore files in */code and */input
2423    o added new expt "solid-body.cs-32x32x1"
2424      + this uses an alternative form of ini_curvilinear_grid.F which
2425        is not necessarily any better than the current one...
2426    
2427    checkpoint40pre4
2428    o added re-initialisations of utrans,vtrans,rtrans in
2429      calc_common_factors which are crucial for TAF.
2430    o extended iMin,jMin range for calc_common_factors,
2431      calc_diffusivity
2432    o added option ALLOW_PASSIVE_TRACER
2433    o a few minor updates and fixes
2434    
2435    checkpoint40pre3
2436    o created calc_gtr1.F for gad package
2437    o split the_main_loop and re-introduced forward_step
2438    o some recomputations of nIter0 for TAMC
2439    
2440    checkpoint40pre2
2441    o Updated to latest branch of AJA, JMC
2442    o Added gradient check package
2443    o Added routines for passive tracer handling
2444    o Added carbon sequestration sensitivity experiment
2445    
2446    checkpoint39
2447     o Modifications and fixes to support TAMC
2448       (mainly missing or wrong directives)
2449     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2450       in addummy_in_stepping
2451     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2452     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2453     o Included following packages:
2454       cal: calendar
2455       exf: external forcing
2456       ecco: essential routines to control use of cal, exf
2457             (NB: this is not the full ECCO environment)
2458     o disabled some packages by default in genmake
2459    
2460    checkpoint38
2461     o see notes_c37_adj.txt
2462     o corrected wrong layer index in external_forcing_t
2463     o replaced the_main_loop/forward_step by the_main_loop
2464     o removed forceoutput from write_state
2465       (replaced criteria for initial/final state)
2466     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2467    
2468    checkpoint37
2469     o mdsio.F routine split and packaged in pkg/mdsio
2470       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2471        used unless genmake -disable=mdsio)
2472     o allow a more precise surface-geopotential gradient for the atmosphere
2473       taking into account the change in space of Alpha (=1/rho) at the surface.
2474     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2475       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2476     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2477       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2478       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2479     o Time-Average diagnostics defined as a pseudo package "timeave".
2480     o pickup files : old pickup (before c35) did not work with new code (c35
2481       and after) unless activating 2 commented lines in initialise-varia.
2482     o Non-Hydrostatic pickup file Pb fixed.
2483     o bug with Rigid-lid version (since c35) fixed.  
2484    
2485    checkpoint36
2486     o implement Crank-Nickelson barotropic time-stepping
2487     o recover Time-Average diagnostics
2488     o fix Pb in checkpoint (PR#19)
2489     o AIM become a standard package ; clean unused CPP_kees
2490    
2491    checkpoint35
2492     o subtantial rewrite of dynamics.f
2493     o allows staggered time-stepping
2494     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2495     o added bottom drag (linear + quadratic)
2496    
2497    checkpoint34
2498     o Modified exchange routines for correct reverse simulation.
2499     o Added verification output to comply with bug fix in impldiff.F
2500       as of c33 (exp2, natl_box).
2501     o Corrected store directives in dynamics.F
2502     o Corrected array boundaries in impldiff.F
2503     o Corrected array dimensions in gmredi.
2504       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2505     o Added routine GLOBAL_SUM_INT to global_sum.F
2506     o Added mdsio_gl.F for ECCO purposes.
2507    
2508    checkpoint33
2509     o Fixed bug in lower BC in impldiff.F
2510     o Fixed confusion about units of forcing arrays in FFIELDS.h
2511       namely Fu,Fv,Qnet,Qsw,EmPmR:
2512       - Removed verification/natl_box/code/external_fields_scale.F
2513         (did not differ from that in model/src)
2514       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2515         (see FFIELDS.h for description)
2516       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2517         kpp_calc.F and kpp_transport_t.F
2518       - Removed model/src/external_fields_scale.F and calls to it
2519       - verification/natl_box uses flux data with "atmospheric" sign so
2520         a special version of external_fields_load.F is used to
2521         change the data as it's read in. This way, the arrays
2522         have the right units and signs at all times tha a user could
2523         possibly use them.
2524     o Corrected genmake to delete a temporary file during configuration
2525    
2526    checkpoint32
2527     o Scaling of forcing fields moved from external_forcing.F to
2528       external_fields_scale.F, called directly after loading fields.
2529     o Surface relaxation terms added to surface tendency fields in
2530       extra subroutine.
2531     o impldiff.F changed to avoid storing by TAMC of huge intermediate
2532       fields.
2533     o Changes in GMRedi to comply with packaging structure.
2534     o Modifications and bug fixes in KPP package.
2535     o Verification experiment for KPP added (verification/nat_box/)
2536    
2537    checkpoint31
2538     o Packages interface brought in line with defined standard
2539       -> new routines packages_...F
2540       -> changes in initialise_fixed.F, initialise_varia.F
2541       -> enables initialisation interface for ECCO package
2542     o Rescaling of external forcing fields immediately after read
2543       (removed from external_forcing.F)
2544       -> new: surface_fields_scale.F
2545       -> affects ini_foorcing.F, external_fields_load.F
2546     o Computation of surface tendencies before tendency updates.
2547       -> new: external_forcing_surf.F
2548     o Change of variable names useGMRedi, useKPP, useECCO
2549     o Further changes in dynamics.F, impldiff.F for TAMC
2550     o Tested for experiments 0, 2, 4.
2551       - not yet tested for GMRedi.
2552       - not yet tested for KPP.
2553    
2554    checkpoint30
2555     o Updates for OBCs
2556     o New experiment for test OBCs (internal_wave)
2557     o New output.txt in verification/exp4/results/
2558     o Updates for KPP: calculation of viscosity corrected, new variables
2559       kpp_dumpFreq and kpp_taveFreq
2560     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
2561       and entry for T90 in genmake
2562    
2563    checkpoint29
2564     o packaged KPP and GM/Redi
2565    
2566    checkpoint28
2567     o Corrected initialization of hFacMin for difference vertical coordinates
2568     o Modified calculation of partial cell thickness to more robust algorithm
2569     o config_summary.F: replaced write_1D_... by write_0D_...
2570       read_write.F: added subroutines write_0D_...
2571     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
2572       included some initialisations required for TAMC.
2573     o routine calc_isoslopes: modified sqrt computation to make it
2574       differentiable for zero argument.
2575     o routines dynamics, impldiff:
2576       included store directives and tape key computations required for TAMC.
2577     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
2578    
2579    checkpoint27
2580     o fixed calc_isoslopes() to so that cancellation of terms in tensor
2581       formulation works properly with variable resolution.
2582     o restructured the calling tree between the_model_main() and dynamics()
2583     o split initialise() into initialise_fixed() and initialise_varia()
2584     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
2585       in new routine ini_psurf()
2586    
2587    checkpoint26
2588     o moved some #ifdef in optional routines to encompass everything
2589       except the argument declarations. This was using up some memory.
2590     o fixed macros like _ADT to work with both versions of Linux cpp
2591     o cleaned up some unused and uninitialized variables
2592       (helps when debugging with strict compile options)
2593     o split up CPP_EEOPTIONS.h into options and macros
2594       (macros are now in eesupp/inc/CPP_EEMACROS.h)
2595     o patch for 2 processor JAM mode
2596    
2597    checkpoint25
2598     o updates for OBCs and NH
2599     o dramatically reduced memory usage
2600     o added "JAM" routines for use on Artic network
2601     o parameterization of convection by implicit vertical diffusion
2602     o added a diagnostic of convective index
2603     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
2604       (this is was partly for OBCs and NH but also in anticipation of
2605        an explicit free-surface option)
2606     o initial state input files for U and V
2607    
2608    checkpoint24
2609     o Removed some spurious "REAL"s
2610     o Updated KPP to latest version from JPL
2611     o Added a COS(latitude) in horizontal viscosity
2612    
2613    checkpoint23
2614     o Added del^4 diffusion for salt and temperature
2615     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
2616    
2617    checkpoint22
2618     o Made many small changes: implicit none, format(i5), etc...
2619     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
2620    
2621    checkpoint21
2622     o Introduced new I/O package that supports direct-access records (mdsio.F)
2623     o Split-up mid-level I/O routines
2624     o Updated input data for experiments 0,1,2,4 and 5
2625     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
2626    
2627    checkpoint20
2628     o Tidied up open-boundaries some more
2629     o Added non-hydrostatic code
2630     o Fixed some input data
2631     o Modified MPI start-up to work in "coupled" context.
2632    
2633    checkpoint19
2634     o Tidied up directory structure for verification experiments.
2635     o Added new code for open boundaries.
2636     o Corrected advective terms near boundaries.
2637     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
2638     o Implemented free-slip/no-slip BCs and del^4 dissipation.
2639     o Split default parameters out of ini_parms.F into set_defaults.F.
2640    
2641    checkpoint18
2642     o Further changes for optional code generation with
2643       CPP - ugh!
2644    
2645    checkpoint17
2646     o Beginning to incorporating modularity
2647       for supporting atmos. and ocean configs.
2648     o Small changes for TAMC complinace
2649     o New ultra simple test case. Barotropic box
2650       configuration "exp0".
2651    
2652    checkpoint16
2653     o Minor changes to exchange routines to support
2654       accumulation in reverse mode. Adjoint of an
2655       assignment is an addition.
2656     o Changes to support compilation by TAMC (LR(1)
2657       syntax) and by g77 under Linux ( 72 character
2658       limit ).
2659    
2660    checkpoint15
2661     Rewrote exchange routines to allow
2662     o General tile <-> tile connectivity.
2663     o TAMC reverse mode flag ( is this really needed? )
2664     o Variable width overlap and exchange region widths.
2665     o Hooks for sharing data via DMA, Arctic, Memory Channel,
2666       shmput/shmget, VIA, SYSV shmem and every other cool
2667       communication method.
2668    
2669    checkpoint14
2670     Consistent isomorphism chages made. These allow dynamical core
2671     to support both pressure and meters as a vertical coordinate.
2672    
2673    checkpoint13
2674     Release which corrects global_max problem and a couple
2675     of KGM time-averaging diagnostic errors. Also contains
2676     a double-gyre experiment setup as well as the baseline
2677     4 degree global template. The double gyre template is
2678     organised to allow it to be applied automatically to
2679     the baseline configuration.
2680    
2681    branch-point-rdot
2682     A few tidy-ups have been made bt the real point of this
2683     check-point (excuse the pun) is to allow a branch to be
2684     made for the purposes of adding the rDot alterations.
2685     I don't want to commit the rDot to the main-trunk until
2686     we've actually tested it...
2687    
2688    checkpoint12
2689     Tidy up and added generic genmake script (formerly
2690     configure script).
2691     Released to testers.
2692    
2693    checkpoint11
2694     Re-arranged initialise() and introduced ini_vertical_grid()
2695     and ini_masks_etc().
2696    
2697  checkpoint10  checkpoint10
2698   Introduced the configure script.   Introduced the configure script.
2699   Separated out the diags package.   Separated out the diags package.

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