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revision 1.32 by adcroft, Thu Nov 30 16:51:40 2000 UTC revision 1.594 by heimbach, Thu Dec 22 16:01:45 2005 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 make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
8      affects output (@ truncation level) of exp. plume_on_slope ; updated.
9    o fix the pickup behavior for obcs in combination with ptracers
10    o fix a bug in ptracers_external_fields_load
11    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
12      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
13    o transfered surface NH pressure to eta field (if exactConserv).
14    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
15         and update lab_sea output.txt file.
16    o completing 3-dim. relaxation code: additional term
17         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
18      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
19      * At compile time, in "EXF_OPTIONS.h" set
20          #define  ALLOW_CLIMTEMP_RELAXATION
21          #define  ALLOW_CLIMSALT_RELAXATION
22      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
23          tauThetaClimRelax3Dim = 15552000.0,
24          tauSaltClimRelax3Dim  = 15552000.0,
25      * 3 cases:
26          1) Use a constant-in-time 3-dim. field
27          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
28          3) Real-time relax. to time-evolving prescribed field
29    o Adding Laplacian-type smoothness constraint on forcing controls
30      * enable at compile-time via ALLOW_SMOOTH_BOUNDARY_CTRL_COST
31      * enable at run-time via mult_smooth = 1
32      * Absolute scale somewhat unclear so far
33      * no area weighting was included since no other cost term does so far
34    
35    checkpoint57y_post
36    First step for a NLFS adjoint
37    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
38    o new init. routines for calc_r_star, calc_surf_dr
39    o still need to deal with ini_masks_etc
40    o testreport seemed happy
41    checkpoint57y_pre
42    
43    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
44    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
45    o add new offset feature to offline pkg (plus minor cleanup)
46    o cfc fixes for final year of integration
47    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
48      be in GCHEM_OPTIONS).
49    
50    checkpoint57x_post
51    o fix testreport Pb in multiple test experiment.
52    o cleanup our namelist syntax in verification:
53      - make it more F95 standards compliant (some work still needed)
54      - allows the vast majority of our tests to work with gfortran
55    o Non-Hydrostatic:
56     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
57     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
58    o Allow to apply AB on T,S rather than on AB(gT,gS):
59     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
60     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
61       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
62     - need a "clever" read_pickup to restart from the other AB formulation
63    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
64    o remove some unused variables (reduces number of compiler warnings)
65    o adjoint
66      * Disable useVariableViscosity for adjoint for time being
67        (there are a number of extensive recomputations)
68      * Initialize certain variables needed for adjoint
69    
70    checkpoint57w_post
71    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
72                 fix the singleCpuIO RS version of MDSWRITEFIELD
73       and add a WARNING if using globalFiles=T with multi-processors.
74    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
75      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
76    o tracer advection scheme:
77      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
78       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
79       was not very convenient).
80      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
81       (further tests needed for the implicit DST & Flux-Limiter schemes).
82    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
83      and sRef for convenience, handy, when you want to initialize
84      ptracers in a large domain with a constant non-zero value. Also,
85      untangle ptracers_init.F a little.
86    
87    checkpoint57v_post
88    o change dome exp. to use variable viscosity in side-drag terms.
89    o remove all the files from the cfc_offline test since they are now
90      incorporated into tutorial_cfc_offline which has been producing
91      identical results for a few days of testing
92    o add new parameter: sideDragFactor to enable half-slip-side BC
93      and change side-drag S/R to use viscosity from mom_calc_visc
94      (can switch back by setting sideDragFactor=0.); affects results at
95      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
96       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
97    o vorticity & strain are now computed without masking, to account for
98      no-slip-side BC in variable viscosity calculation ; mask is applied
99      anyway later on, before computing advection/coriolis terms.
100    o modify exp4 to test new obcs support for reading from external files
101      and for passive tracers
102    o fix behavior of ptracers_monitor when monitor output is written to a
103      netcdf-file; still not independent of monitor.F (writes in the same
104      file).
105    o change default value of tRef (put a uniform, meaningful value for ocean
106      & atmos) and initialize sRef (was missing, as Martin mentioned).
107    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
108      to be proportional to enstrophy dissipation length.  Thus,
109       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
110      This is now consistent with Smagorinsky and with the manual.
111    
112    checkpoint57u_post
113    o OBCS and PTRACERS: add open boundary support for passive tracers
114      - either use homogenous (pseudo) v.Neumann conditions or prescribe
115        OB-values from file; this is not different from the way theta and salinity
116        are treated
117      - however, Orlanski-radiation conditions are not supported, and the model
118        will stop if you use pTracers and Orlanski at the same time.
119      - beefed up the rountine obcs_external_fields_load: now only those open
120        boundary values are overwritten with values from files for which there
121        are really files, otherwise the OB-fields remain untouched. This makes
122        it possible to use different OBs at different ends of the domain (as
123        with EXF)
124    o reduce number of exch calls in shap_filt (s2).
125    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
126      truncation level) 4/5 MLAdjust test results (11&12 digits match).
127    
128    checkpoint57t_post
129    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
130    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
131      same truncation, independent of the face number: affects affects several
132      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
133    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
134      note that biharmonic viscosity + no-slip was not tested in any experiment.
135    o fix bug in non-linear free-surf side-drag ; generate new output for
136      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
137    o make mnc honor the writeBinaryPrec flag for most kinds of output
138    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
139    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
140      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
141    o add brackets in multi-terms sum to get same truncation, independent of
142      the face number (manage to get exactly same value of gU,gV at the cs-edge)
143      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
144    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
145      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
146      a maximum grid-scale Reynolds number.  Also, changes all length calculations
147      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
148      Suggested values of viscosity parameters found in mom_calc_visc.
149      Many new viscosity diagnostics available.
150    
151    checkpoint57s_post
152    o Add clearing-house for viscosity calculations, mom_calc_visc and
153      correct numerous bugs in LeithD and Smagorinsky discretizations.  
154      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
155      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
156      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
157      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
158      The Strain-Tension form is now called with useStrainTensonVisc=.true.
159      ViscAhStrain and viscAhTension are now retired.
160    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
161    o In response to JMC's bug report, genmake2 now ignores any soft-links
162      that it finds in the *current* directory when searching for files.
163      Soft-links found in any other source directories will still work as
164      they did before.
165    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
166      a C routine to unlimit the stack size
167    o mnc-ify pkg/aim snapshot vars
168    o mnc-ify pkg/land as requested by Daniel
169    o various changes to mnc including:
170      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
171      - output can now be grouped so that all files within a group
172          change the ITER portion of their names in lock-step together
173      - can now read ("global") PER-FACE (in addition to PER-TILE) files
174          and works with both EXCH1 and EXCH2 (but needs more testing)
175      - writing works for all verification test cases w/ g77 on Linux
176    
177    checkpoint57r_post
178    o make MNC variable initialization happen earlier
179    o add diagnostics for (almost) each term of the momentum Eq.
180    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
181    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
182    o remove MINIMAL_TAVE_OUTPUT option ;
183      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
184    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
185      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
186    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
187    o add time-dependent SST, SSS control
188    o cost terms in ecco/ modularized (new cost_generic.F)
189    o cost_averages routines are modularized (new cost_averagesgeneric.F)
190    o new infrastructure for seaice model vs. obs misfits in seaice/
191      * driver from the_main_loop.F is seaice_cost_driver.F
192      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
193      * gradient check in Exp. 6a of natl_box_adjoint/
194    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
195      (see README file)
196    
197    checkpoint57q_post
198    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
199    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
200      - bug was reported by Jean-Michel and Ian Fenty
201    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
202      update exp. cpl_aim+ocn output.
203    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
204      Needed for high-res. runs with large global files
205      to be able to limit tapelev size
206    o Changed some tests for adjoint:
207      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
208      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
209      * global_ocean.90x40x15/ back to default 3-level checkpointing
210    o Modifications to enable scripted COMMON to MODULE conversion
211      * verification/OpenAD/code/ has necessary scripts and description;
212      * converts, compiles and runs successfully;
213    
214    checkpoint57p_post
215    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
216    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
217      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
218    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
219    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
220      (was already the case for dissipation with mom_vecinv,
221       and also the case for grad.PhiHyd when staggered-timeStep)
222      This will allow to put dissipation out-off the AB time-stepping.
223     Unfortunately, affects truncation error. Update output of exp. that "fails"
224      (cg2d matching number) and leave the others for later: front_relax(10),
225      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
226      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
227    
228    checkpoint57o_post
229    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
230      (2) its ready to be documented during the 20050801 DocFest
231    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
232      for ideal_2D_oce and lab_sea on linux_ia32_g77
233    o set to #undef CTRL_SET_OLD_MAXCVARS_30
234      in global1x1_tot/code_seaice_adj to access indices 32, 33
235      (worth another tag)
236    
237    checkpoint57n_post
238    o adding precip control xx_precip 32
239    o adding swflux control xx_swflux 33
240    o Replacing 10 forcing penalty cost routines by 1 generic.
241    o Implementing partitioning in time-mean and variable adjustment
242      for atmos. state.
243    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
244    o in natl_box_adjoint:
245      * updated exp 1 to 10
246        (but does not have time-mean vs. variable split results yet)
247    o updated global1x1/*_seaice_adj/
248      to incorporate latest changes
249    o enable useSingleCpuIO for mdsio vector routines
250      (applies in particular to tapelev I/O)
251    o removed inefficient K-loop in all active_file*control*.F
252    
253    checkpoint57m_post
254    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
255      and advect_cs (use EXCH-2 and standard cs-32 grid files).
256    o pkg/exch2: filling of face-corner halo regions is optional
257      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
258    
259    checkpoint57l_post
260     tag before updating tutorials (pre-release-2)
261    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
262       for output and interpolation of input fields onto model grid)
263    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
264       Affects results of exp. rotating_tank ; update output.txt.
265    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
266          and taking the square quantity and/or using a fraction-weight field.
267    o fix aim_diagnostics_init.F mate numbers.
268    o add mnc output capability to diagnostics/diagstat and update
269      our cvsignore files for the ACSII output generated
270    
271    checkpoint57k_post
272    o lab_sea now uses diagnostics package and provides a suite of
273      new EXF diagnostics output.
274    
275    checkpoint57j_post
276    o exf
277      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
278        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
279        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
280      * extended diagnostics output
281        - now includes all EXF variables
282        - hs, hl moved to common block
283        - separate S/R for diagnostics, called after ctrl vector is added
284        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
285        - EXFqnet contains true Qnet (i.e. includes qsw)
286      * updated verif. lab_sea, global_with_exf
287      * Rearranging hflux (exf_mapfields -> exf_getforcing)
288        to ensure that diagnostics sees a true EXFqnet
289    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
290    o diagnostics pkg: change pointers so that 1 diagnostic can be used
291      several times with different frequencies.
292    o mnc-ify the thsice package as requested by Daniel Enderton
293      - the monitor--MNC output needs work
294      - many attributes need to be added (most are currently blank)
295    o mnc-ify theaim_v23 package as requested by Daniel Enderton
296      - many attributes need to be added (most are currently blank)
297    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
298    o add Sadourny like discretization to the 4th.O vorticity advection scheme
299    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
300      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
301         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
302    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
303     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
304    
305    checkpoint57i_post
306    o Diagnostics package was changed: diagnostic allocation is now deactivated
307      by setting an empty file name in the namelist (used to be by setting 0 frequency)
308    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
309      add 1rst Order upwind vertical Shear.
310    o add a quick fix for A/B checkpointing in OFFLINE mode
311    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
312      end-run around the C/Fortran linking horror in eesup/src/timers.F
313    o added pkg/runclock: allows user to terminate run based on wall clock
314    o added non-hydrostatic scaling parameter: nh_am2
315    o pkg/my82: futile attempt to make results compiler-independent by adding
316      some "_d 0", etc. no effect.
317    o for mnc output, fill the 'T' coordinate var with myTime and create a
318      separate 'iter' variable for iteration count
319    o pkg/diagnostics:
320      add new capability: output of Global/Regional & per-level statistics ;
321      tested against monitor output (including land & thSIce) on various exp.
322    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
323    
324    checkpoint57h_done
325      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
326      data.diagnostics, data.gchem, data.ptracers) is done.
327    
328    o pkg/diagnostics: prepare for Global/Regional statistics.
329      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
330    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
331      and rename it: DIFFERENT_MULTIPLE
332    
333    checkpoint57h_post
334    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
335    o pkg/diagnostics: change output frequency, now in seconds (instead
336      of Nb of iterations). This requires to change data.diagnostics.
337    checkpoint57h_pre
338    
339    o in mnc, let the user create the output dir if both mnc_outdir_date
340      and mnc_outdir_num are false
341    o add fflags() to pkg/diagnostics which allows one to specify, on a
342      per-file basis, the file precision [default behavior is unchanged]
343    o added diagnostics to pkg/kpp, including computation of mixed layer
344      depth based on a temperature/density criterion
345    o updated verification/natl_box to test the new pkg/kpp diagnostics
346    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
347    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
348    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
349      not mnc -- this mistake was found by JMC and is now corrected
350    
351    checkpoint57g_post
352    o add Adams-Bashforth 3rd Order time stepping:
353      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
354      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
355    checkpoint57g_pre
356    
357    o make lambda[Theta,Salt]ClimRelax spatially varying
358      (default remains spatially uniform constant based on tau)
359    o added new control variables
360      * init. uVel, vVel, etanN
361      * lambda[Theta,Salt]ClimRelax
362    o separate masks used for ctrl_pack/unpack 'from write_grid' output
363      (suggested by G. Forget)
364    
365    checkpoint57f_post
366    o add parameter "baseTime" = model base time = time at iteration zero
367      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
368      account for baseTime shift
369    o move Coriolis arrays from PARAMS.h to GRID.h
370    checkpoint57f_pre
371    
372    o mnc-ifying the seaice package
373    o introduced an alternative length scale calculation for use in the limiting
374      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
375    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
376    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
377      as well as grad(vort3).  Made it compatible with both approximate form
378      for the cubed sphere and full form of these gradients.  Added flag
379      useFullLeith to select between approximate and full form.  
380    o add "d0" in getcon.F to reduce differences between compilers/platforms
381      update output.txt of exp. fizhi-gridalt-hs
382    o change port_rand funtion to allow to set the seed.
383    o fix obscure MNC bug involving conversion between reals and integers
384      - it caused no problems with certain (eg. gcc, ifc) compilers but the
385        new version is now more standards-compliant
386    o adjoint-related modifications
387      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
388      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
389      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
390    
391    checkpoint57e_post
392    o Adding eddy stress controls a la Ferreira et al.
393    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
394    
395    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
396      update output.txt of exp. fizhi-gridalt-hs
397    o add more "Z" dimensions and associated coordinate vars to MNC
398    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
399    o parameter calendarDumps: when set, approximate months (30-31 days) and years
400      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
401      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
402      months and years.  Requires pkg/cal.
403    o diagnostics: add pickup functionality
404      - off by default for backwards compatibility
405      - current version only uses MDSIO -- MNC will be added
406    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
407    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
408    
409    checkpoint57d_post
410    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
411    o modify verification/ideal_2D_oce so that it tests the creation of mnc
412      output from the diagnostics package
413    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
414    o make genmake2 more portable by using ".$FS" instead of ".f" for more
415      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
416    o add coordinate variables to the MNC output from the diagnostics package
417    o change MNC-flags default value: true when useMNC=TRUE
418    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
419      the ability (off by default) to read the grid information using MNC
420    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
421    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
422    o do snap-shot diagnostics at the middle of the time-interval (instead of
423      at the end).
424    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
425      new test for AIM with thSIce + slab-ocean
426    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
427    o move state variable diagnostics to the beginning of the time step ;
428      (note: still needs some work specially for snap-shot diagnostics)
429      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
430    
431    checkpoint57c_post
432    o Change testing option (-ieee) to get closer agreement between g77 & ifort
433    o generate new output.txt files on faulks with g77 & the new -ieee option
434    checkpoint57c_pre
435    
436    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
437      update output.txt of exp. global_ocean.90x40x15
438    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
439      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
440    o add saltFlux(+File) forcing capability with periodicExternalForcing
441    o allow to use pkg diagnostics for GM-Redi & ThSIce output
442    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
443    o improvements for the MNC output from DIAGNOSTICS:
444      - correct handling of the unlimitied dimension
445      - all dims now have associated coordinate variables
446      - variables located at U, V, and Corner ("Z") points are now written
447        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
448        *all* data points are output
449    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
450    o added pkg/seaice/seaice_monitor.F
451    o mdsio_readfield.F can now read files visible only to master MPI process.
452    o pkg/seaice: some test code for ice-modified ocean stress
453    o exf_getffields interpolation defaults to bilinear for all scalar forcing
454      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
455      spurious negative numbers for precipitation and humidity.  Will cause
456      some small numerical differences for integrations using pkg/exf/exf_interp.F.
457    o pkg/ctrl/
458      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
459        May be enabled via doPackDiag
460      *  introduce z-scaling of
461         + gradient (doZscalePack) and
462         + control (doZscaleUnpack)
463    o pkg/mdsio/
464      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
465      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
466    
467    checkpoint57b_post
468    o simplify options in diagnostics_fill arguments (remove weird combinations)
469    o fix MNC coordinate variables so that they now contain per-face index
470      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
471      general, EXCH2 grids are only aligned to a "local" coordinate system
472    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
473    o Implement instantaneous output within pkg diagnostics:
474      setting a negative frequency in data.diagnostics produces
475     "snap-shot" output (as opposed to time-average if freq > 0)
476    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
477      NOTE: change ptracer diagnostics name: use 2 characters to work with
478            more than 9 tracers. Add also diagnostics of advect & diffus flux.
479    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
480      becomes the coordinate variable for the 'T' dimension
481    o add CF-style coordinate variables to MNC
482      - just a first cut:  numbers are meaningless on the cubesphere and
483        missing along the T axis but otherwise it works!
484    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
485    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
486    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
487      this is based directly on what the model compute, so that the content of
488      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
489    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
490    o clean up build options files for SunOS, in particular
491      - remove -traditional from xmakedepend
492      - change -xarch=v9 to -xarch=native for f77
493      - restore use of make (not gmake)
494      - add CC=gcc if using g77
495    o changes per discussion of AM, JMC, & EH3 today:
496      - move redundant "grid" variables out of "state" -- in preparation of
497        creating proper CF-style coordinate variables and in recognition
498        that any/all grid variables can be easily copied (eg. w/NCO) from
499        the grid files into any of the other NetCDF files
500      - *always* output grid variables with MDSIO (this will eventually be
501        changed)
502      - output MNC grid file if useMNC is true
503    o every instance of _END_MASTER() has been found and replaced with
504      _END_MASTER( myThid ) in order to satisfy certain picky Sun
505      preprocessors
506    o re-arrange diagnostics pkg initialisation:
507     - allow each package to extend the available diagnostics list
508     - add some checking and fix small problems (multi-threaded, ...)
509     - new S/R diagnostics_fill (replace fill_diagnostics):
510       look through the short list of active diag. (instead of the long list)
511       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
512    
513    checkpoint57a_post
514    o this set of changes restores TAMC compatibility
515      tested for global_ocean.90x40x15 adjoint on trough
516      (what a pain)
517    
518    checkpoint57a_pre
519    o some modifs in tools/build_options for sunos
520    o call ctrl_pack for ctrl at end for optimcycle=0
521    
522    checkpoint57
523    o add horizontal bi-harmonic viscosity for vertical velocity
524      - new parameter viscA4W (defaults to viscA4)
525      - affects only non-hydrostatic code
526      - to be done: no-slip lateral boundary conditions
527    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
528    o implement Implicit Vertical advection for pTracers
529    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
530      (implemented also for implicit vertical diffusion & advection)
531    o OBCS: extend application of tracer open boundary conditions
532      to a strip beyond the boundary of width Olx/Oly
533    o add call monitor to TAF set of required calls (flow directives)
534      and include in natl_box_adjoint
535    o untangle a few ifdefs related to cost, ctrl, autodiff
536      untangel a few ALLOW_ECCO_OPTIMIZATION
537    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
538      (theta2, salt2 in ecco_cost_weights)
539    
540    checkpoint56c_post
541    o OBCS as control variables
542      - update ctrl_ad_diff.list, obcs_ad_diff.list
543      - remove balance of obcs controls from default
544      - fix index bug nobcs in ctrl_init
545      - fix dummy fields filen in ctrl_pack
546      - add dummy weights for obcs
547    o lsopt: comment out fort.94 output
548    o optim:
549      - remove unnecessary header files
550      - adjusted namelists
551      - add xerbla.F to Makefile
552    o exf:
553      - multiple modifications of exf_check_range
554      - unit change in exf_init_runoff from [m/year] to [m/s]
555    o mdsio:
556      - i/o-vector change debugLevel from debLevA to debLevB
557    
558    checkpoint56b_post
559    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
560      is called from DO_THE_MODEL_IO
561      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
562      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
563      - clean up PTRACERS_WRITE_TIMEAVE a little
564    o add another verification experiment that tests both the cfc-pkg and
565      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
566      reactive tendencies treated inline with regular timestepping
567    o testreport previously did a lousy job of comparing small numbers, so
568      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
569      implemented in the little c-progam tmp_cmpnum.c which is embedded in
570      testreport.
571    o ptracers_monitor: bug fix for MPI
572    
573    checkpoint56a_post
574    o GCHEM: finish reorganizating the package
575      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
576        (introduces another 3D-array for each passive tracer, but only if
577        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
578        gchemTendency is not needed because the timestep is done separately)
579      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
580      - GCHEM is now---more or less cleanly---separate from PTRACERS
581      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
582        so clear to me how that should be done in a general way.
583    o CFC: improve formatting of output in CFC_ATMOS
584    o PTRACERS:
585      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
586        that ALL experiments with ptracers enable can be checked. This makes
587        GCHEM_MONITOR obsolete.
588      - include a runtime parameter PTRACERS_monitorFreq that defaults to
589        monitorFreq
590      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
591    o add PTRACERS (PTR0[1-5]) to testreport output
592    o exf_check_range:
593      * default changed to .TRUE.
594      * will check values for niter0 if debLevA, every timestep if debLevB
595      * STOP in exf_check_range if 'out of range'
596      * range chosen generous to allow for potential extema
597      TBD: a version with stricter range
598           permitted range would be runtime parameters
599    o GMredi:
600      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
601      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
602      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
603    o GCHEM:
604      - move call to GCHEM_FORCING_SEP, so that it is now called before
605        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
606      - introduced a useGCHEM runtime flag and applied it everywhere.
607      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
608        this flag is now only visible within GCHEM-pkg routines.
609      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
610        be replaced by a 3D array that is computed before thermodynamics; for
611        this, the tracer ID iTracer had to be included into the parameter list
612        of ptracers_forcing
613      - set up forward_step to call gchem_forcing, that will replace
614        gchem_forcing_int in ptracers_forcing
615      - cleaning up
616    o small cleaning of exch2: remove files that are also in eesupp/src
617    
618    checkpoint56
619    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
620    o mnc: cleanup "full" files--fixes out-of-memory problem
621    o ECCO-GODAE
622      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
623      * fully merged and updated from SIO code
624        windstress sign change affects
625        - exf_inscal_[u/v]stress
626        - sign of xx_tau[u/v] adjustments
627        - signs in cost_scat
628      * ctrl_get_gen: avoid update of tau[u/v] for first few days
629      * natl_box_adjoint updated and compressed
630      * 2-level checkpoint switch added
631        (tested in EXP. 1 of natl_box_adjoint)
632      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
633    o SVD
634      * first complete, non-hacked version for SVD calculations
635      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
636        performed via direct access files admtlm_vector.it????
637        (via ctrl_[un]pack)
638      * optimcycle is used for ARPACK iteration counter
639        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
640      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
641        and add linear transforms where necessary
642      * controls are initial/final SST, SSS (can be extended; need to check
643        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
644    o mdsio: filename info to both stderr, stdout
645    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
646      from sign change
647    
648    checkpoint55j_post
649    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
650      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
651    o add consistent build directories and .cvsignore files to verification
652    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
653    o make all subroutines 30 or less characters in length for certain older
654      compilers to work (a thorough search only turns up two routines in
655      pkg/ptracers)
656    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
657      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
658    
659    checkpoint55i_post
660    o change arrays for total vertical diffusivity (2.D if explicit,
661      3.D if implicit) ; each ptracer uses its own background value.
662    o added mnc/NetCDF output capability to ocn_compon_interf
663      - added bits to verification/cpl_aim+ocn so that it can run on
664        ITRDA and other clusters without the mpirun "-wd" option
665    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
666      configuration
667    o give MNC the ability to create additional files rather than
668      exceeding a specified file size limit "MNC_MAX_FILESIZE"
669      - the default is just less than 2GB which is a practical limit
670        on many systems
671    o Compute the non-local term using either KPP vertical diffusivity (=default)
672       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
673    
674    checkpoint55h_post
675    o add verification test "vermix"
676    o remove all the *_ioinc flags and replace with the single global
677      outputTypesInclusive flag
678    o allow to set a vertical profile of vertical diffusivity for T & S
679    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
680    o useMNC moved from data.mnc to data.pkg
681    
682    checkpoint55g_post
683    o Renaming carbon AD experiments to comply with testreport conventions
684    o Updating adjoint of Held-Suarez hs94.1x64x5
685    o Fixing directives for non-ECCO forward_step, after ECCO directives
686      have been fixed to avoid recomp. of do_oceanic_phys
687      Works well for global_ocean.90x40x15,
688      but recomp. issue remains for carbon
689    o Updating adjoint output for natl_box_adjoint after
690      pkg/ecco has been modified (see taga c55d_post)
691    
692    checkpoint55f_post
693    o rename to timeave_init_fixed
694    
695    checkpoint55e_post
696    o some delicate re-shuffle of store directives to avoid one
697      extra call of do_oceanic_physics
698      affects ecco_the_main_loop.F, do_oceanic_physics.F
699      checkpoint_lev1_directives.h
700    o NB: this may break global_ocean adjoint temporarily,
701      but it is clear how to fix it. Will do later, need this now.
702    
703    checkpoint55d_post
704    o ECCO specific cost function terms (up-to-date with 1x1 runs)
705    o ecco_cost_weights is modified to 1x1 runs
706    o modifs to allow observations to be read in as
707      single file or yearly files
708    o enable to read exf forcing fields as either
709      single file or yearly files (flag useExfYearlyFields)
710    checkpoint55d_pre
711    
712    o switch between 2-level and 3-level checkpointing
713    o add ability of MNC to write local and "partial" (eg. 2D slices where
714      the full 3D field is never actually stored) arrays to NetCDF files
715      with the correct (that is, the complete multi-dimensional) set of
716      array indicies
717      - used in mom_vecinv() to write the diagFreq output
718      - tested (demonstrated) in verification/aim.5l_cs
719    o further mnc-ification
720      - add verification/lab_sea to the list with mnc setups
721      - fix undefined mnc v-names in cd_code
722      - add kpp to mnc output (both snapshot and timeave)
723    o non-hydrostatic code
724      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
725        in calc_gw.F
726      - defaults to viscAh
727      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
728        friction or Leith) in non-hydrostatic mode, as long as there is
729        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
730    o pkg/cost
731      extend simple cost functions to treat time mean quantities
732      (T,U,V) via cost_accumulate_state from cost_tile
733    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
734        be 2 times larger than the minimum size the advection scheme requires.
735        now get a perfect conservation of salt in advect_cs test-exp (updated)
736    o GGL90 (Gaspar's TKE mixed layer)
737      - add horizontal diffusion of TKE, requires exchanges in
738        do_fields_blocking_exchanges, horizontal diffusivity is zero by
739        default. In OPA there is no horizontal diffusion of TKE but the
740        mixing coefficients are computed from a horizontal average of TKE of
741        6 points or so. I think that diffusion has a little more physical
742        justification.
743      - clean up ggl90_calc in the hope of reducing memory usage (this hope
744        was in vain)
745      - mask tke-variable in ggl90_init
746    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
747    o fix biharmonic diffusion on CS-grid.
748    o more obcs stuff
749      - added obcs_external_fields_load as an alternative to the EXF-pkg option
750        for reading boundary values. This routine is called from
751        obcs_prescribe_read
752      - updated obcs_check
753      - changed sponge layer relaxation parameter units for days to seconds
754      - turned off sponge layer by default
755      - changed argument list of OBCS_CALC to myTime+deltaTclock
756      - fixed about 35 bugs in obcs_external_fields_load
757    
758    checkpoint55c_post
759    o obcs stuff
760      - new runtime flags useOBCSprescribe, useOBCSbalance
761      - re-arranged obcs_calc
762      - moved exf_getobcs to obcs_prescibe_read
763        obcs_prescibe_read is called after ORLANSKI stuff
764        and independent of it (executable can contain all).
765      - updated obcs_check
766      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
767        These may be necessary only if tangential velocities are
768        prescribed at OB, not sure, needs testing.
769    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
770      which simplifies the calls and passes the ifc check-bounds test
771    
772    checkpoint55b_post
773    o add a 2D scalar, Z location, exchange_2 routine.
774    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
775      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
776      affects advect_cs results (for the wrong reason): update output.txt
777    o use a more standard discretization for biharmonic viscosity ;
778     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
779      affects results of dome set-up: update output.txt
780    o fix gad_advection.F (CubedSphere part), back to version 1.23
781    o fix bug in mom_vi_del2uv.F (CubedSphere part).
782    
783    checkpoint55a_post
784    o merged code to
785      * prescribe/read time-dependent open boundaries
786        (works in conjunction with exf, cal)
787      * sponge layer code for open boundaries
788      * each boundary N/S/E/W now has its own CPP option
789        (healthy for the adjoint)
790    
791    checkpoint55
792    o up-to-date adjoint of previous breaks
793      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
794      - global_ocean_ebm: adjoint still needs fix (TLM ok)
795      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
796      - carbon: * remove tr1-related adjoint verification
797                * add ptracer as control variable
798    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
799      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
800    
801    checkpoint54f_post
802    o in verification/carbin/ remove experiment related to
803      ALLOW_PASSIVE_TRACER (array tr1 etc)
804      code_ad/ input_ad/ results_ad
805    
806    o add two new packages
807      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
808        + subject to optimization (memory)
809      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
810        + subject to reordering (many GOTOs in the original code)
811        + so far opps is called for every (i,j) point, and then operates in
812          the vertical; one may want to reorder the scheme in order operate in
813          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
814          fields)
815    o overhaul of IO so that we now have flags for MDSIO and/or MNC
816      - all verification tests compile and run with linux_ia32_g77
817      - defaults are compatible with current input files--nothing
818        should change if you were not previously using MNC
819      - MNC output has been added in numerous places (eg. timeave)
820        but there are still a few writes not yet do-able with MNC
821        (this is in progress)
822      - flags now allow for either/or/both use of MDSIO and MNC and
823        documentation will soon follow
824      - numerous small formatting cleanups for ProTeX
825    o add version info (via BUILD_INFO.h) to MNC and stdout
826    
827    checkpoint54e_post
828    o add two new packages
829      - pp81 (Packanowski and Philander, 1981), Richardson number and
830        stratification dependent mixing
831      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
832      - these scheme operate in a similar manner as KPP (without ghat, of
833        course), however there is only one diffusivity that is used for both
834        temperature and salinity (and passive tracers)ç
835    o add offline package
836    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
837      provided by Stephanie Dutkiewicz
838    o genmake2: add ability to search for C compilers and cleanup test output
839      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
840    
841    checkpoint54d_post
842    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
843    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
844      leading to additional shift by 5 days each year of integration
845       (i.e. leading to considerable offset over the years)
846    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
847    o start with no AB and no initial filtering (staggerTimeStep):
848      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
849    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
850      (external loading & cpl import/export stay in forward_step.F)
851    o update coupling interface to work with new staggerTimeStep
852    o change MDSIO ptracers_pickup.
853    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
854    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
855    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
856    
857    checkpoint54c_post
858    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
859      this affects (truncation error) output.txt of test-exp:
860       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
861    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
862    o change Qnet to always be the net heat flux, (+upward).
863      affects (truncation error) output of natl_box exp.: updated
864    o define the max number of passive tracers in PTRACERS_SIZE.h
865    o start to test mnc routinely in exp0
866    o add sea-ice loading (sIceLoad) as a new forcing field.
867    
868    checkpoint54b_post
869    o add testreport "-j JOBS" option for parallel builds (tested and pretty
870       impressive on Altix and Opteron systems)
871    o diagnostics can now write NetCDF files through the mnc package
872    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
873    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
874    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
875      affects (truncation error) output of lab_sea & natl_box exp.: updated
876    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
877    
878    checkpoint54a_post
879    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
880    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
881    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
882    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
883      + internal_wave (shift in writing cg2d_ini_res)
884    checkpoint54a_pre
885    
886    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
887      - modified verification/lab_sea and natl_box_adjoint accordingly
888    
889    checkpoint54
890    checkpoint53g_post
891    o prepare splitting of thermodynamics: store convect.counter in common block
892    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
893      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
894    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
895    o new parameter "nShapS": allow to treat differently S from T (nShapT)
896    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
897    o restore adjointability
898    
899    checkpoint53f_post
900    o modifications that affect AIM experiment results (update output.txt):
901      - no advection of S at top interface Nr (pkg/generic_advdiff)
902      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
903    o AIM pkg:
904      - include stability function into surf.Flux derivative relative to Tsurf
905      - calculate clear-sky radiation & surface temp. change (for diagnostics)
906    
907    checkpoint53e_post
908    o merged cylindrical coord configuration
909    o added rotating_tank experiment
910    checkpoint53e_pre
911    
912    checkpoint53d_post
913    o faulks upgraded: re-generate output.txt that have changed:
914       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
915    o Added Bryan and Lewis, 1979, vertical diffusivity profile
916    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
917    o added Sadourny discretization of Coriolis
918      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
919      - re-enabled use of omega3 (useAbsVorticity)
920    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
921      vector-invariant equations
922      - note: does *NOT* yet use same variable visc. for no-slip BC's.
923    o recoded the lateral boundary conditions for non-hydrostatic w, this time
924      hopefully without new bugs
925      - still to do: biharmonic friction for non-hydrostatic w
926    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
927    o regenerated output for global_ocean_ebm (using -ieee)
928    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
929      of mom_common/
930      - simple re-arrangement of instructions within computing loop
931    checkpoint53d_pre
932    
933    checkpoint53c_post
934    o new version of coupler for AIM+thSIce and Ocean models
935     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
936     - land: change Evaporation of snow
937     - aim with thSIce: fix bug in snow-precip.
938    o changes to calc_gw.F
939     - bug fix for w^2 term near the bottom boundary
940     - (hopefully) improve the lateral slip boundary condtions for use with
941        partial/looped cells
942      - because the bug fix changes two verification experiments anyway (exp5
943        and plume on slope), change the lateral boundary condition from half slip
944        to the value of no_slip_sides
945    o ebm package wasnt quite up to the parallel task. Fixed that.
946    o Adjoint of EBM package + verification
947      * TLM OK
948      * ADM not sufficient accuracy yet (needs further testing)
949    
950    checkpoint53b_post
951    o Commiting new energy balance model to repository
952      * package is pkg/ebm
953      * verif. is verification/global_ocean_ebm
954      * references are in ebm_driver.F
955    C      * X. Wang, P. Stone and J. Marotzke, 1999:
956    C        Global thermohaline circulation. Part I:
957    C        Sensitivity to atmospheric moisture transport.
958    C        J. Climate 12(1), 71-82
959    C      * X. Wang, P. Stone and J. Marotzke, 1999:
960    C        Global thermohaline circulation. Part II:
961    C        Sensitivity with interactive transport.
962    C        J. Climate 12(1), 83-91
963    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
964    C        Destabilization of the thermohaline circulation
965    C        by atmospheric eddy transports.
966    C        J. Climate 7(12), 1870-1882
967    o Will need long integration testing.
968    checkpoint53b_pre
969    
970    o created pkg/mom_common in preparation for variable viscosity code
971    o renamed and split ini_mnc_io
972    o pkg/land: only liquid water can diffuse or run-off
973    o AIM using land: soil wetness availability account for snow
974    o added printMapIncludesZeros to EEPARMS namelist
975    
976    checkpoint53a_post
977    o restore TAMC compatiility for exf_constants.h
978      (no usage of _d in .h)
979    o Additional storing in KPP in an attempt to fix
980      TAMC problem with adjoint of KPP code.
981      (no success...)
982      Identical code works fine with TAF.
983    o Fixed verification/natl_box_adjoint experiments.
984      Initial conditions for Experiments 4 and 5 are now
985      set to "SEAICE_initialHEFF=0", which is more reasonable,
986      and hence gives results closer to that of Experiment 2.
987      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
988    
989    checkpoint53
990    o stable checkpoint with up to date adjoint
991      TLM tests only run for 1st grdchk at the moment. Its unclear if
992      this is a code problem or a problem with resetting code for g_
993      variables that is being autogenerated wrong.
994      Otherwise:
995       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
996       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
997         are both still in chaos following their security messes.
998    
999    checkpoint52n_post
1000    o various build (mostly genmake2) changes including:
1001      - ability to build/run more easily within Cygwin and MacOS X
1002      - more complicated Makefiles with a stronger dependence on Gnu Make
1003    o pkg/seaice modifications
1004      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1005        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1006        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1007      - changed proxy for geostrophic velocity and updated
1008        verification/lab_sea/results/* accordingly
1009      - removed ADI dynamic solver from pkg/seaice
1010      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1011        they caused a segmentation fault under certain circumstances
1012      - removed unused field WATR
1013    o bug fix in exf-package:
1014      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1015         now reflect that.
1016    o small fixes in the cal-package:
1017      - set reference date to first of January for the 'model'-calendar
1018      - failing of cal_CheckDate in cal_FullDate now actually results in a
1019        warning
1020    o small modifications in exf-package to increase flexibility:
1021      - change climtempfreeze from a constant to a runtime parameter that
1022        is specified in data.exf_clim (default = -1.9)
1023      - introduce runtime parameter windstressmax (default = 2.0) that is
1024        specified in data.exf
1025    o fix in pkg/thsice:
1026      - update Evap (Tsf changes) to be consistent with Latent heat flux
1027      - maintain snow precipitation unchanged (even if Tsf >=0).
1028     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1029    
1030    checkpoint52m_post
1031    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1032      this does not change any of the results, because myIter=0 in swfrac always
1033      lead to jwtype=2 (the default anyway), but the call makes little sense
1034      as a default
1035    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1036    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1037      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1038    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1039    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1040    o extending useSingleCpuIO option to work with new exch2 I/O format
1041      - old-style, missing-tile I/O is still accessible by defining CPP
1042        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1043    o monitor package can write to NetCDF files and/or STDOUT
1044    o fix re-definition bug in MNC_GRID_INIT_ALL()
1045    o doc/api_reference added
1046      - a framework for building an API Reference Manual using all
1047        the "protex" comments embedded in the code
1048      - see pkg/generic_advdiff, pkg/mnc for examples
1049    o MNC:
1050      - make myThid the last argument for all subroutines
1051      - new default for the grid files: NO halos
1052      - add useMNC and other run-time flags
1053      - separate per-file-group handling of the unlimited dimension
1054      - early initialization of MNC w/ flags read at the eeboot stage
1055        and lookup tables set in initialize_fixed
1056      - write all MNC output to a freshly-created directory
1057    o thermodynamics sea-ice (thsice) is now tested with testreport.
1058    o test exp. advect_cs: use the standard cs32 grid ; update output.
1059    o Added functionality to grdchk:
1060      pick global i,j,k position (or nearest wet) where to perform check.
1061    
1062    checkpoint52l_post
1063    o new land formulation:
1064      a) use ground enthalpy as prognostic variable to ensure exact
1065         energy conservation.
1066      b) account for water temperature and for latent heat of freezing
1067         in all processes (rain, run-off, ground storage)
1068      c) compute surface and ground temperature implicitly.
1069    o aim_v23 modification for new land model:
1070      a) Treat separately land / ocean / sea-ice surface fluxes
1071         to allow implicit computation of land & sea-ice surface temp.
1072      b) add snow precipitation.
1073    checkpoint52l_pre
1074    
1075    o fix problem (when 1 tile is empty) in min/max monitor.
1076    o fix bug in timeAve (u,vZetatave in common block)
1077    o no restoring terms under ice for pkg/seaice
1078    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1079    o bug fix for pkg/seaice pickups
1080    o change MNC call locations and add coordinate attributes
1081    o mask vorticity at the corner ; affects global_ocean.cs output
1082    o fix ini_curvilinear_grid ; test CS experiments with mpi
1083    o aim.5l_cs: modify sea-ice fraction input file ; update output
1084    o exf: Adding simple range check routine for exf fields after read
1085    
1086    checkpoint52k_post
1087    o removed top-level directory "diags"
1088      - we migrated these functions to pkg/timeave a long time ago
1089    o fixed bug introduced in pkg/monitor
1090    o accuracy ctrlprec = 32 insuffient for gradient checks using
1091      averaged fields (I/O via cost_averages)
1092      -> use ctrl.h in active_file*.F to control I/O precision.
1093    o paramter list of CALL ADTHE_MAIN_LOOP
1094    o added initial do_the_model_io to ecco
1095    o set all ...Freq to zero after cost_final
1096      taveFreq, dumpFreq, pChkptFreq
1097    o MAIN and ECCO differentiability restored
1098    
1099    checkpoint52j_post
1100    o fix nchklev in tamc.h for global_ocean...
1101    o Bringing flow and store directives up-to-date
1102    o Really weird thing!
1103      call do_the_model_io from the_main_loop with parameters
1104      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1105      TAF places a faulty re-call of initialise_varia
1106      after cost_final call which should not be there!
1107    checkpoint52j_pre
1108    
1109    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1110      error messages
1111    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1112    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1113      debug output
1114    o modfied mdsio_writefield.F to handle non-global files under exch2
1115    o update AIM Cubed-Sphere exp (aim.5l_cs):
1116      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1117    o update AIM Equatorial Channel exp:
1118      use standard aim_v23 pkg and change the SST fields to be more realistic.
1119    o globalFile now works with exch2
1120    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1121      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1122    o limit timeave output for hi-res integrations
1123    
1124    checkpoint52i_post
1125    o removed CPP_EEOPTIONS.h from verification/*/code
1126    o updated the tiling for global_ocean_pressure
1127    checkpoint52i_pre
1128    
1129    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1130      the old pkg/aim).
1131    
1132    checkpoint52h_pre
1133    o shortened offending lines in exch2_send_rx?.template
1134    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1135    o genmake2: add build & execute test for NetCDF code
1136    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1137      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1138    o added useSingleCPUIO flag to monitor.F and mon_out.F
1139    o added temporary hack for sea-ice dynamics on the cube:
1140      metric terms are ignored and it is assumed that
1141      there is no sea-ice on cube faces 1, 2, 4, and 5.
1142    
1143    checkpoint52f_post
1144    o added exch2 cube routines to pkg/exch2
1145    o modified hs94.cs-32x32x5 to use it
1146    o added new grid files to hs94.cs-32x32x5
1147    checkpoint52f_pre
1148    
1149    checkpoint52e_post
1150    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1151      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1152    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1153      to work with implicit vertical advection and AB ;
1154    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1155    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1156     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1157    checkpoint52e_pre
1158    
1159    o fix bug in impldiff when Nr=1 or Nr=2.
1160    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1161    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1162    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1163      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1164    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1165    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1166    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1167    
1168    checkpoint52d_post
1169    o re-tiled many expts to allow comparison in multi-processor mode
1170      - updated output accordingly
1171      - changed hs94.128x64x5 to use intial T from file rather than use the
1172        random number generator
1173    o add infrastructure in model routines for fizhi and gridalt packages
1174    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1175    o changes to permit hi-res, cubed-sphere, configuration
1176      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1177      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1178      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1179        of surface winds for the cube
1180      (A verification experiment, based on global_ocean.cs32x15, but with
1181       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1182       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1183       complete with example surface forcing files and matlab scripts to look
1184       at the output and compare it with that of global_ocean.cs32x15.)
1185    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1186       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1187       to conform to the common rule.
1188    o check-in the first version of the coupler + interfaces for multi-components
1189       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1190       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1191       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1192       - ocean and atmos. share the same horizontal grid (no interpolation).
1193       - exchanges between component and coupler is done in forward_step
1194    o new verification experiment, cpl_aim+ocn:
1195       coupled ocean - AIM atmosphere on cs32 grid.
1196    
1197    checkpoint52d_pre
1198    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1199    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1200    
1201    checkpoint52c_post
1202    o Fixing OPTIONS files for use of exf:
1203      - ALLOW_ECCO not needed
1204      - ECCO_CPPOPTIONS.h should not be included from
1205        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1206        as has been the case in the past
1207      - All cal/exf related options are currently set in
1208        single header file. Should remain so until we
1209        agree on a consistent new policy.
1210    o Removed all CPP options for cal package.
1211      cal has no more CPP options.
1212    o modified STOREs in GAD_ADVECTION
1213    o corrected key comp. for passkey
1214    
1215    checkpoint52b_post
1216    o new version: "thsice" of thermodynamic sea-ice pkg:
1217     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1218     - modify fluxes but do not change theta directly;
1219     - light cleaning of bulk_force pkg (still needed with thsice).
1220     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1221       + output_thsice.txt to test thsice & bulk_force pkgs.
1222    o put back grid & coriolis monitor output.
1223    checkpoint52b_pre
1224    
1225    o call "do_the_model_io" at the beginning (=> dump initial state)
1226    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1227    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1228      (need info on NUMBER_OF_PTRACERS)
1229    o missing PTRACERS headers in some routines
1230    o default tamc.h in pkg/autodiff supposed to crash
1231      to ensure proper customization
1232    
1233    checkpoint52a_post
1234    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1235      - moved surfaceTendencyTice from pkg/seaice to main code
1236      - subroutine FREEZE_SURFACE now limits only surface temperature
1237        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1238        => new output.txt for global_ocean.cs32x15 & global_with_exf
1239      - keep the old version of FREEZE for backward compatibility;
1240        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1241      - corresponding modifs for TAF directives
1242    o added surface flux output variables to TIMEAVE_STATVARS
1243    o time-averaged output for pkg/ptracers
1244    o fix problem with ECCO-related divided adjoint
1245      snapshot file was missing some ad-variables,
1246      but no warning issued by TAF
1247    
1248    checkpoint52a_pre
1249    o some bug fixes for #undef REAL4_IS_SLOW
1250    
1251    checkpoint52 = ecco_c52_e35
1252    o after testing adjoints of checkpoint51u_post
1253    
1254    checkpoint51u_post
1255    o this is the post-merge tag of the ecco-branch
1256      (needs another clean checkout and re-testing)
1257    o various natl_box_adjoint configs and results
1258      but no input fields
1259    o obcs adjoint not yet merged!
1260    o adding ECCO global 1x1 and 2x2 degree configs
1261    o updated/extended some store directives for seaice
1262    o pkg/ecco now containes ecco-specific part of cost function
1263    o top level routines the_main_loop, forward_step
1264      supersede those in model/src/
1265      previous input data.cost now in data.ecco
1266      (new namelist ecco_cost_nml)
1267    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1268    
1269    checkpoint51t_post
1270    o this is the pre-merge tag of the ecco-branch
1271    
1272    checkpoint51s_post
1273    o cleanup: removed various obsolete #define-s
1274    o pkg/grdchk
1275      - renamed 'ph-grd 3' to 'grad-res'
1276      - merged from ecco-branch
1277        (remaining bug fixes for obcs gradient checks)
1278      - additional high-precision output for testreport
1279        (grep for 'precision_grdchk_result')
1280    
1281    checkpoint51r_post
1282    o cleaned up or removed CPP_OPTIONS.h files
1283    o updated results for some of the tests to reflect the new
1284      optfiles (-ieee: -O0 instead of -O3)
1285    
1286    checkpoint51q_post
1287    o cd_code:
1288      - moved cd_scheme.F -> cd_code_scheme.F
1289      - separate read_checkpoint from cd_code_ini_vars.F
1290      - separated cd_code part from write_checkpoint
1291      - updated AD_SOURCE, generated .flow
1292      - added CD_CODE_VARS.h to the_main_loop
1293      - Moving cd_code specific store dir.s to pkg/cd_code
1294    o ctrl package totally restructured
1295      - pack/unpack now optional and decoupled from
1296        xx_/adxx_ I/O
1297      - ctrl_pack/unpack cleaned
1298        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1299      - confined inclusion of AD_CONFIG.h to where necessary.
1300    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1301    
1302    checkpoint51p_post
1303    o create initial cd_code package
1304      - WARNING: the initialization of fields within packages
1305        is broken because INI_FIELDS (where READ_CHECKPOINT is
1306        called) is called *before* PACKAGES_INIT_VARIABLES.
1307        This seems to be backwards since
1308        1) its important to initially zero the entire field including
1309           the "halo" region
1310        2) zeroing needs to be done *before* reading pickup info
1311           and the pickup call might or might not happen in any
1312           particular run
1313      - this needs an overhaul for R2
1314    o cleanup verification/*/code/GMREDI_OPTIONS.h
1315    o cleanup testreport
1316    
1317    checkpoint51o_post
1318    o bringing AD-related verif's up to date with genmake2
1319      - carbon/
1320      - global_ocean.90x40x15/
1321      - hs.94.1x64x5/
1322      - (front_relax/ )
1323    o (more) consistent directory structure for AD-related verif.'s
1324    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1325    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1326    o bug fix in find_alpha.F for MDJWF:
1327      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1328        change rho -> rho-rhoConst
1329      - replace call find_rho to find_rhonum
1330    o initialisation of rFlx extended to full array (required by TAF)
1331      and shifted to thermodynamics
1332    o removed PTRACERS.h in ptracers routine
1333    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1334    o Correcting initialisations for fVerU, fVerV.
1335    o helping TAF to recognize dependency on kUp for
1336      fVerU, fVerV
1337    o Replacing delZ by delR in pkg/ctrl/
1338    checkpoint51o_pre
1339    
1340    o undid all of cp51 pending some cleanups and discussion
1341    o added the [#include "AD_CONFIG.h"] statement to all files that need
1342       it for adjoint/tl #defines
1343     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1344     o removed tools/genmake since it no longer works
1345    
1346    checkpoint51n_post
1347    o modifications to make FREEZE flux visible to pkg/kpp
1348      - moved surfaceTendencyTice from pkg/seaice to main code
1349      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1350      - subroutine FREEZE now limits only surface temperature
1351        (this means new output.txt for global_ocean.90x40x15,
1352         global_ocean.cs32x15, and global_with_exf)
1353    o added surface flux output variables to TIMEAVE_STATVARS
1354    
1355    checkpoint51n_pre
1356    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1357    o added [#include "AD_CONFIG.h"] to all files that use the following
1358      defines:
1359      - ALLOW_ADJOINT_RUN
1360      - ALLOW_TANGENTLINEAR_RUN
1361      - ALLOW_ECCO_OPTIMIZATION
1362    
1363    checkpoint51m_post
1364    o incorporating changes to get TAMC/TAF working in genmake2
1365      - added new TAMC/TAF targets to the Makefile
1366      - various cleanups related to package handling
1367      - these changes should have no impact on the forward model
1368    
1369    checkpoint51l_post
1370    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1371     - faster algorithm for cal_addtime.F
1372     - higher precision arithmetic, where needed
1373     - pkg/exf *startdate variables changed from calendar date to
1374       model integration time
1375    
1376    checkpoint51l_pre
1377    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1378    o enable to apply restoring on S & T only in a latitude band.
1379    o update output (external_forcing_surf modif. change truncation errors)
1380       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1381    
1382    checkpoint51k_post
1383    o change default to: useNHMTerms=.FALSE.
1384     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1385       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1386     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1387        exp1, ideal_2D_oce
1388     - change data file of oceanic exp (leave the results unchanged for now)
1389       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1390    o set gravitySign automatically according to the vertical coordinate used
1391      (and change sign: back to "logical" value: +1 when R increases downward)
1392    o added an include barrier to the default CPP_OPTIONS.h and
1393      removed the #include "PACKAGES_CONFIG.h" from it
1394    o fix a bug in mom_fluxform (from chk51j_post)
1395    
1396    checkpoint51j_post
1397    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1398    o adjusted some flow directives (dynamics, thermodynamics)
1399    o added cubed-sphere case to test cost function
1400    o heckpoint_lev?_directives.h now include
1401      pkg-specific directives, whenever those are enabled.
1402    o Moving pkg-specific flow directives to corresponding pkg
1403      Moving pkg-specific differentiation list to corresponding pkg
1404      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1405      ---> conventions are
1406           - pkg_ad.flow
1407           - pkg_ad_diff.list
1408           - pkg_ad_check_lev?_dir.h
1409    
1410    checkpoint51i_post
1411    o merge of the branch-genmake2
1412      - knowingly breaks the older genmake
1413      - automatic generation of all ALLOW_${PKG_NAME} defines
1414      - new testreport supersedes older testscript
1415    o large number of package inclusion and header cleanups
1416    checkpoint51i_pre
1417    
1418    o new output for adjoin of global ocean vector invariant
1419    o fix for checkpoint of thermodynamic seaice and bulk_force
1420    o Steph gchem various cleanups
1421    
1422    checkpoint 51h_pre
1423    o fixed some single quotes
1424    o modify gchem pkg to be more versatile
1425    o modifications to clean up dic pkg
1426    o add pkg/cfc
1427    
1428    checkpoint51g_post
1429    o provide links for ARPACK and ADM*TLM
1430    o start removing verification/vero/
1431    o update AD-related stuff
1432      (in particular some IF-statements in model/src/ routines)
1433    o adding to verification/global_ocean.90x40x15/ adjoint of
1434      vector invariant setup
1435    
1436    checkpoint51f_post
1437    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1438    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1439      of tracer Green's fucntions for ocean inversion project.
1440    
1441    checkpoint51f_pre
1442    o Added on-the-fly spatial interpolation capability
1443        "USE_EXF_INTERPOLATION" to pkg/exf.
1444      - This is a temporary Cartesian-grid hack until
1445        the super-duper ESMF coupler becomes available.
1446      - See verification/global_with_exf/README for usage example.
1447      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1448        flags and modified pkg/seaice accordingly.
1449    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1450        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1451        non-local transport term.
1452    
1453    checkpoint51e_post
1454    o pkg/mom_vecinv:
1455      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1456      - add time-ave diagnostic of vorticity advection.
1457    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1458    o atmospheric geopotential: - include water vapor effect;
1459                                - use p^kappa in p* scaling.
1460    o land pkg: read initial state from files.
1461    o AIM : add stratospheric drag in the upper level
1462    
1463    checkpoint51d_post
1464    o change function ILNBLNK (=> last non-blank char.) to return zero
1465      (instead of the string length) when the string. char is empty
1466    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1467    o modif's to restore TAMC compatibility
1468      - avoid "_d" constructs in PARAMETER declarations
1469      - avoid interrupting lines by comment lines
1470    o Use cluster local disks for purely local I/O
1471      vs. globally visible disks needed for ctrl stuff
1472      (merged from ecco-branch)
1473      - new active_file_loc... and mdsio_..._loc routines
1474      - affected packages: autodiff, ctrl, grdchk, mdsio
1475    
1476    checkpoint51c_post
1477    o introducing integer flag debugLevel
1478      - debLevZero: suppress all output
1479      - debLevA: standard
1480      - debLevB: equivalent to current debugMode=.TRUE.
1481    o introducing pathname variable mdsioLocalDir for mdsio
1482      that can be specified at runtime
1483      (relevant for cluster I/O to local disk)
1484    `
1485    >>>checkpoint51b_post
1486    adjoint of ptracers
1487    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1488    o extended state in checkpoint_lev?, etc.
1489    o alternative ctrl/cost with tr1 or ptracer
1490    o new comlev1_bibj_ptracers
1491    o new ptracers.flow
1492    o made ptracers_forcing same as external_forcing_s
1493    o added verification for adjoint with ptracers
1494      - adm. grdchk fail so far
1495      - tlm. grdchk OK
1496      - checked tapelev/comlev recomputations: OK
1497    <<<checkpoint51b_pre
1498    
1499    checkpoint51a_post
1500    o added code for biogeochemistry package
1501      - new pkgs: dic, gchem
1502      - new subroutine in ptracers
1503    o modify code for biogeo packages
1504      - in model/src and pkg/ptracers
1505    
1506    checkpoint51
1507    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1508      - autodiff, ctrl, exf, grdchk, seaice
1509      kept separate packages
1510      - cost, ecco, obcs
1511    o updating verification/internal_wave, verification/lab_sea
1512      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1513    
1514    checkpoint50i_post
1515    o Preparing next differentiable checkpoint and sync
1516      of MAIN vs. ecco-branch
1517      - 1st step: this one is differentiable
1518      - 2nd step: next(! not this) checkpoint will have updated packages
1519                  from ecco-branch)
1520    
1521    checkpoint50h_post
1522    o new package "land": provide surface BC for AIM.
1523    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1524    o AIM: use true log-P extrapolation for near surface temp (= as in
1525        F.Molteni paper) ; update aim.5l_cs output.
1526    o New variable in PARM03 for more flexible pickups
1527    o somewhat cleaned package initialisation sequence for
1528      ctrl/ cost/ ecco/ in packages_... routines
1529    
1530    checkpoint50g_post
1531    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1532      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1533      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1534        made the default because of faster convergence than ADI
1535    
1536    checkpoint50f_post
1537    o exf totally restructured
1538      - replaced all exf_set_ routines by one generic exf_set_gen.F
1539        and made sure it's still differentiable
1540      - split exf_getffields.F into new exf_bulkformulae.F
1541      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1542      - updated adjoint/makefile and relevant verif. accordingly
1543    
1544    checkpoint50f_pre
1545     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1546          + change Evap over land. (update aim.5l_cs output)
1547     o added missing .cvsignores and made uniform across expts
1548     o changed configuration of tidal_basin_2d expt
1549     o added pkg/debug functions for tracing code in fatal crashes
1550     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1551     o new fn in pkg/monitor to stop model if solution grows too big
1552     o removed lots of single quotes from comments
1553    
1554    checkpoint50e_post
1555    o make KPP work with PTRACERS
1556     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1557       nearly a copy of kpp_transport_s
1558     - there is no analogue to SurfaceTendencyS, so I have to use
1559       gPtr(of the surface layer) instead
1560    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1561    checkpoint50e_pre
1562    
1563    checkpoint50d_post
1564    o change kpp output from multiple-record state files to single-record state
1565      files analogous to write_state.F
1566    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1567      analogous to the cg2d-related output.
1568    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1569      so that writing to internal file fn (with length 512) fails.
1570    checkpoint50d_pre
1571    
1572    checkpoint50c_post
1573    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1574    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1575    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1576    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1577    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1578    
1579    checkpoint50c_pre
1580    Merging from release1_p13:
1581    o bug fix for pkg/seaice dynamic solver
1582    o Added SEAICE_initialHEFF to pkg/seaice
1583    
1584    checkpoint50b_post
1585    o store u*,v* in gU,V instead of in guNm1,gvNm1
1586    o in order to put the momForcing out of the Adams-Bashforth:
1587      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1588      to timestep.F
1589    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1590    o re-generate output for highly sensitive test-exp:
1591       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1592    
1593    checkpoint50b_pre
1594    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1595    o corrected CPP option mismatch in exf_Bulk... functions for case
1596      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1597    
1598    checkpoint50a_post
1599    o Bug fix for merging between c50 and KPP.
1600      ikey was passed from thermodynamics to kpp_calc via
1601      common block rather than being recomputed in kpp_calc,
1602      in contradiction with new key itdkey.
1603      New key ikppkey created, and tamc.h headers updated.
1604    
1605    checkpoint50
1606    - 2nd step of merge with ecco-branch:
1607      merge changes in ecco-branch back into main trunk
1608    - bug fix in find_alpha
1609    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1610    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1611    - merged some sliced AD support routines
1612    
1613    checkpoint49
1614    merged from ecco-branch:
1615    o exf:
1616      - Enable initialisation of forcing fields to constant
1617        (runtime) values.
1618      - in exf_getffields.F
1619        Reduce i-/j-loop to interior domain, discarding overlaps.
1620        That also fixes wrong TAF-key computations for key_1, key_2
1621        with bulf formulae.
1622      - exf_init.F modify #ifdef for exf_init_evap
1623      - exf_getffieldrec.F, ctrl_getrec.F
1624        The following INT-usages are not safe:
1625          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1626          fldcount = int(fldsecs/fldperiod) + 1
1627        and were modified.
1628    o autodiff: checkpoint_lev...
1629      - updated storing for bulk formulae (some arrays were missing)
1630      - added state for seaice package
1631      - synchronized with main branch
1632    o DIVA:
1633      Modif.s in
1634      - the_main_loop.F
1635      - the_model_main.F
1636      and added cost_final_restore.F cost_final_store.F
1637      o With these changes, it is possible to fully separate
1638        the first forward run to compute the cost function (mdthe_main_loop)
1639        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1640        into separate model executions.
1641        This enables better tuning of DIVA to given queue sizes.
1642      o Loss of cost function value in consecutive DIVA runs is
1643        fixed by storing to 'costfinal' file.
1644      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1645        beginning/end of adjoint integration is accounted for.
1646      The current changes apply to TAF-1.4.26.
1647      TAF has one remaining bug, requiring one manual change
1648      (see MITgcm manual).
1649    o cal: synchronized between MAIN and ecco-branch
1650    
1651    checkpoint48i_post
1652    o Changes to restore differentiability of code w.r.t. previous tag
1653      (mostly adding new routines to make list and replacing
1654      pressure by totPhiHyd).
1655    o Updated and merged grdchk package
1656      - has both ADM and TLM checks
1657      - works for single- and multi-proc.
1658      - output cleaned
1659      - worked successfully for parallel DIVA
1660    o genmake:
1661      - Adding -platform=SP4
1662      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1663    o Modif. for DIVA:
1664      ctrl_unpack should not be called in intermediate DIVA interval.
1665      (similar thing would apply for active files such as
1666      tbar, sbar, psbar, which should not be reinitialised;
1667      only relevant for ecco-branch)
1668    
1669    checkpoint48h_post
1670    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1671    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1672    o Added SEAICE_initialHEFF to pkg/seaice
1673    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1674    
1675    checkpoint48g_post
1676    --- EOS:
1677    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1678      store total Potential in totPhyHyd for diagnostics & EOS.
1679    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1680    --- Pressure/geopotential gradient:
1681    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1682    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1683      ( changes results of global_ocean_pressure )
1684    o NLFS + z-coord.: add eta*Rho' contribution.
1685    o accurate phiHyd when using interface-W at the middle between 2 centers
1686     ( changes results of ideal_2D_oce )
1687    o includes r* 2nd term in potential gradient.
1688    
1689    checkpoint48f_post
1690    Merging from release1_p12:
1691    o Modifications for using pkg/exf with pkg/seaice
1692      - improved description of the various forcing configurations
1693      - added basic radiation bulk formulae to pkg/exf
1694      - units/sign fix for evap computation in exf_getffields.F
1695      - updated verification/global_with_exf/results/output.txt
1696    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1697      (SBO) core products, including oceanic mass, center-of-mass,
1698      angular, and bottom pressure (see pkg/sbo/README.sbo).
1699    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1700      to avoid negative values in shallow regions.
1701      - updated verification/natl_box/results/output.txt
1702      - updated verification/lab_sea/results/output.txt
1703    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1704    o Added useSingleCpuIO option (see PARAMS.h).
1705    o Updated useSingleCpuIO option in mdsio_writefield.F to
1706      work with multi-field files, e.g., for single-file pickup.
1707    o pkg/seaice:
1708      - bug fix in growth.F: QNET for no shortwave case
1709      - added HeffFile for specifying initial sea-ice thickness
1710      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1711    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1712      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1713    o pkg/seaice:
1714      - adjoint-friendly modifications
1715      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1716    
1717    checkpoint48e_post
1718    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1719    o dynamics: change definition of computational domain & adapt mom_fluxform
1720      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1721    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1722        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1723        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1724        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1725        inverted_barometer solid-body.cs-32x32x1
1726      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1727    
1728    checkpoint48d_post
1729    o in preparation for r*:
1730     a) use pre-computed gradient of hydrostatic potential:
1731        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1732     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1733        => affects results of glob_oce_pressure (different truncation error)  
1734      update output.txt of ideal_2D_oce & global_ocean_pressure
1735    
1736    checkpoint48d_pre
1737    o in preparation for r*:
1738      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1739      pass the 2 comp. of the grad. as arguments to momentum S/R.
1740      but for the moment, only used if it does not change the results.
1741    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1742    
1743    checkpoint48c_post
1744    Modifications in treatment of initial flux forcing controls
1745    to avoid extra storing of flux fields.
1746    
1747    checkpoint48c_pre
1748    o Added tidal_basin_2d experiment (currently 1D!)
1749    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1750    
1751    checkpoint48b_post
1752    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1753     (modification to pressure gradient not yet implemented)
1754    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1755      (for U & V) that are used for vertical advection of momentum.
1756    
1757    checkpoint48a_post
1758    o In preparation for r*, use temp. array to compute vertical transport
1759       in flux-form momentum pkg. => change results of few test-exp.
1760      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1761                        lab_sea, natl_box & plume_on_slope
1762    
1763    checkpoint48
1764    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1765    
1766    checkpoint47j_post
1767    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1768    o moved adexch from forward_step to addummy_in_stepping
1769    o added exch in ctrl_map_...
1770    o aveFreq.=0. at end of cost_final to avoid overwrite in
1771      reverse checkpointing loop
1772    o Yet more changes in gmredi:
1773      * adgmredi_calc_tensor
1774        avoiding all recomputation of gmredi_slope_limit
1775      * adgmredi_x/y/rtransport
1776        added flag for excessive storing to avoid recomp. of
1777        u/v/rtans, dTdx/y/z
1778        -> this is not really necessary and very memory-consuming
1779      * adgmredi_slope_psi:
1780        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1781      * gmredi_slope_limit
1782        re-activated full calculation of taperfct for case 'ac02'
1783    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1784    
1785    checkpoint47i_post
1786    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1787    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1788      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1789    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1790    o gmredi: fix few bugs.
1791    
1792    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1793    This will be a good checkpoint to plug into the ecco-branch.
1794    o few modif.'s to get latest version adjointed
1795      (mainly kick out code in ini_linear_phisurf)
1796    o modif's to run adjoint with exactConserv
1797    o case GM_BOLUS_ADVEC should be cleaned
1798      S/R gmredi_slope_psi should be cleaned
1799    o verification/carbon now has exactConserv=.TRUE.
1800    
1801    checkpoint47g_post
1802    o time-average AIM output: becomes independent from statvars time-average
1803      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1804    o After TAF bug fix:
1805      Tested adjoint of gmredi package.
1806      Tests were done with checkpoint47 rather than with latest
1807      checkpoint47f_post since the latter is broken for the adjoint
1808      verification/carbon/ contains both ADM and TLM gradient checks.
1809    Here they are, before they get changed/lost/stolen.
1810    Mostly modif.'s to fix numerical sensitivities.
1811    Gradient checks OK for
1812    - GM_taper_scheme:
1813      * clipping
1814      * ac02
1815      * linear
1816      * glw91
1817      * dm95
1818      * ldd97
1819    - GMREDI_OPTIONS:
1820      * GM_VISBECK_VARIABLE_K
1821      * GM_NON_UNITY_DIAGONAL
1822      * GM_EXTRA_DIAGONAL
1823      * GM_BOLUS_ADVEC
1824    in conjunction with data.gmredi parameters to be checked in
1825    in a few minutes under verification/carbon/code/
1826    
1827    checkpoint47f_post
1828    Merging from release1_p10:
1829    o modifications for using pkg/exf with pkg/seaice
1830      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1831        and SEAICE_EXTERNAL_FLUXES
1832      - pkg/exf CPP options EXF_READ_EVAP and
1833        EXF_NO_BULK_COMPUTATIONS
1834      - usage examples are Experiments 8 and 9 in
1835        verification/lab_sea/README
1836      - verification/lab_sea default experiment now uses
1837        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1838    
1839    checkpoint47e_post
1840    o created a tag prior to creating a branch
1841    
1842    checkpoint47d_post
1843    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1844      at the bottom boundary had an erroneous half slip boundary condition
1845    o added bottom drag and no slip boundary condition capabilities to
1846      oceanic pressure coordinates code
1847    o added new verification experiment global_ocean_pressure, this experiment is
1848      also described in the tutorial section of the manual
1849    checkpoint47d_pre
1850    
1851    checkpoint47c_post
1852    o Added a verification experiment for a global cubed-sphere ocean run
1853      -  verification/global_ocean.cubed32x32x30
1854      -  uses pkg/therm_seaice and pkg/bulk_forcing
1855    
1856    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1857    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1858      when using P-coordinate; only implemented for atmospheric config.
1859    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1860      NOTES: requires option NONLIN_FRSURF to be "#define".
1861    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1862    
1863    checkpoint47b_post
1864    Merging from release1_p9:
1865    o pkg/seaice
1866      - removed GOTO's and added taf directives
1867      - double precision constants to reduce the g77 (Linux)
1868        to F77 (SGI) differences reported in release1_p8
1869    o tools/genmake
1870      - added SGI options
1871    o verification/testscript
1872      - updated to that of checkpoint47a_post
1873    o verification/global_ocean.90x40x15/input/eedata
1874      - modified for SGI f77 compatibility
1875    o verification/lab_sea
1876      - added description of sea-ice model
1877      - added missing matlab routines
1878      - added test of thermodynamics parallelization
1879    
1880    checkpoint47a_post
1881    o new pkg: aim_v23
1882     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1883       for now, keep the same surface forcing as before.
1884     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1885     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1886     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1887    o add diagnostic of surface correction term in monitor output
1888    
1889    o bulk_force and therm_seaice
1890    - Two packages:  bulk_force (Bulk forcing)
1891      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1892    - Earlier integration from Stephaine Dutkiewicz
1893      and Patrick Heimbach.
1894    - Two ifdef statements for compile time,
1895       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1896    
1897    checkpoint47
1898    differentiable version of checkpoint46n_post
1899    o bug fix in quasihydrostaticterms
1900    o * "clean" adjoint code (in terms of extensive recomputations)
1901        can now be obtained for all GMREDI options (i.e. for
1902        - GM_VISBECK_VARIABLE_K
1903        - GM_NON_UNITY_DIAGONAL
1904        - GM_EXTRA_DIAGONAL
1905        - GM_BOLUS_ADVEC )
1906      * However, wrong gradient check problem remains unsolved.
1907      * New CPP options have been introduced for different
1908        tapering schemes
1909    o external_fields_load now part of differentiation list
1910    o pressure needs multiple storing;
1911      would be nice to have store_pressure at beginning or
1912      end of forward_step, e.g. by having phiHyd global (5-dim.)
1913      (NB: pressure is needed for certain cases in find_rho,
1914      which is also invoked through convective_adjustment).
1915    o recomputations in find_rho for cases
1916     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1917    o #define ATMOSPHERIC_LOADING should be differentiable
1918    o ini_forcing shifted to begining of initialise_varia
1919    o Incorporating QNVS line search routines into MITgcm
1920      (this is separate code, and therefore not under pkg)
1921      lsopt/, optim/
1922    o Updated verification/carbon/
1923      - #define GM_VISBECK_VARIABLE_K
1924      - GM_taper_scheme    = 'ldd97'    
1925    
1926    checkpoint46n_post
1927    Merging from release1_p8:
1928    o verification/natl_box:
1929      updating new external_fields_load routine
1930    o New package: pkg/seaice
1931      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1932      The sea-ice code is based on Hibler (1979-1980).
1933      Two sea-ice dynamic solvers, ADI and LSR, are included.
1934      In addition to computing prognostic sea-ice variables and diagnosing
1935      the forcing/external data fields that drive the ocean model,
1936      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1937      The implied surface heat flux is then stored in variable
1938      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1939      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1940      non-local transport term.  Because this call precedes model
1941      thermodynamics, temperature under sea-ice may not be "exactly" at
1942      the freezing point by the time theta is dumped or time-averaged.
1943      N.B.: fairly large differences in accuracy occur across
1944            different platforms/compilers; comparison between
1945            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1946            generated output gives:
1947       T           S           U           V
1948      C D M    c        m  s        m  s        m  s        m  s
1949      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1950      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1951      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1952    
1953      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1954    o GAD:
1955      - generated new common blocks to account for call of
1956        same gad routines with differing traceridentities
1957        (needed to modify tracerIdentity indices in GAD.h)
1958      - generated separate common blocks for case useCubedSphereExchange
1959        (Department of Futurology)
1960      - parameter lists to gmredi_?transport: added tracerIdentity
1961      - added new key indices to tamc.h
1962    o external_fields_load:
1963      - added this routine to TAF list
1964      - needed to make some common blocks global and additional storing
1965        along the same lines as exf package (checkpoint_lev?_directives.h)
1966    o exf:
1967      updated external forcing package
1968      - bug fixes carried over from ecco-branch
1969        (missing OBCS_OPTIONS.h in two routines)
1970      - enable easy to use "no forcing".
1971      - added exf I/O for atmospheric loading
1972      - added exf I/O for runoff data
1973      - transfered scaling between exf <-> MITgcm to exf namelist
1974    o Adding new verification experiment global_with_exf.
1975      This verification experiment is almost identical to the
1976      global_ocean.90x40x15 experiment, except that it uses
1977      the exf (and cal) package instead of the
1978      external_fields_load routine (cf README file).
1979    
1980    checkpoint46m_post
1981    o modified testscript to return -- when there are no lines of "%MON" output
1982    o added new flag "quasiHydrostatic" for QH mode
1983      and new routine quasihydrostaticterms()
1984    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1985      New routine: mom_u_coriolis_nh()
1986    o fixed sign of non-hydrostatic metric terms in u and v equations.
1987      Depend on correct sign of gravitySign.
1988    o added work.pc* to .cvsignore in aim directories using ifc
1989    o introduced flag for controllin non-hydrostatic metric terms
1990    o removed gravitySign from PARM04
1991    o switched to g77/ifc from pgf77 in aim experiments
1992    
1993    checkpoint46l_post
1994    o made convective adjustment work with pressure coordinates:
1995     - changed the direction of k-loop in convective_adjustment.F for the
1996       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1997     - adjusted the reference pressure k-index in convective_adjustment.F
1998     - adjusted the convection condition in convect.F (in analogy to
1999       calc_ivdc.F)
2000     - convective_adjustment no longer computes anything on the halos
2001     - removed the warnings about negative salinity from find_rho.F and
2002       find_alpha.F; instead the new routine look_for_neg_salinity, called
2003       at the beginning of find_rho, find_alpha, and find_beta, does a
2004       check of the entire slice, if CPP-option
2005       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2006    checkpoint46l_pre
2007    
2008    checkpoint46k_post
2009    o fixed the verification/global_ocean.90x40x15 experiment:
2010     - new bathymetry (the world according to A., JMC, and M.)
2011     - new initial fields and forcing fields (*.bin files)
2012     - new POLY3.COEFFS (for the next release one should switch to a full
2013       equation of state: JMD95P or MDJWF)
2014     - fixed several errors and redundancies in the data file
2015     - experiment uses looped cells
2016     - added matlab directory with diagnostic scripts for plotting of output
2017    
2018    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2019     - read AIM physics parameters from a file (data.aimphys)
2020     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2021    
2022    checkpoint46j_post
2023    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2024    o move wVel computation at the end of the time step, in S/R integr_continuity
2025    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2026    o update timeave pkg for wVel diagnostic.
2027    checkpoint46j_pre
2028    
2029    checkpoint46i_post
2030    o Clean up AIM package (and keep the results unchanged):
2031      include CPP_OPTION and use IMPLICT NONE in all routines ;
2032      declare all the variables _RL ; use _d 0 for all numerical constants.
2033      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2034    
2035    checkpoint46h_post
2036    o cleaned up the use of rhoNil and rhoConst.
2037      - rhoNil should only appear in the LINEAR equation of state, everywhere
2038        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2039        and the dynamical equations are all divided by rhoConst
2040    o introduced new parameter rhoConstFresh, a reference density of fresh
2041      water, to remove the fresh water flux's dependence on rhoNil. The default
2042      value is 999.8 kg/m^3
2043    o cleanup up external_forcing.F and external_forcing_surf.F
2044      - can now be used by both OCEANIC and OCEANICP
2045    checkpoint46h_pre
2046    
2047     Added code to convert surface volume flux (fresh water) into
2048     a mass flux when using P coordinates in the ocean (OCEANICP).
2049     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2050    
2051    checkpoint46g_post
2052    o Include a new diagnostic variable phiHydLow for the ocean model
2053      - in z-coordinates, it is the bottom pressure anomaly
2054      - in p-coordinates, it is the sea surface elevation
2055      - in both cases, these variable have global drift, reflecting the mass
2056        drift in z-coordinates and the volume drift in p-coordinates
2057      - included time averaging for phiHydLow, be aware of the drift!
2058    o depth-dependent computation of Bo_surf for pressure coordinates
2059      in the ocean (buoyancyRelation='OCEANICP')
2060      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2061        Theta, Salinity, and Pressure in the parameter list. This routine is
2062        presently contained in find_rho.F. This routine does not give the
2063        correct density for 'POLY3', which would be a z-dependent reference
2064        density.
2065    o cleaned up find_rho
2066      - removed obsolete 'eqn' from the parameter list.
2067    o added two new verification experiments: gop and goz
2068      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2069    checkpoint46g_pre
2070    
2071    checkpoint46f_post
2072    o Enable tangent linear (forward mode) gradient checks:
2073      - extended active file handling to g_... files
2074      - added TANGENT_SIMULATION to theSimulationMode
2075      - extended grdchk package accordingly
2076    o added tangent linear setup in verification/carbon/code_ftl
2077    o added adjoint setup in verification/front_relax/code_ad
2078    
2079    checkpoint46e_post
2080    o Added new equation of state -> MDJWF
2081      - EOS of McDougall et al., 2002, JAOT, submitted
2082      - caveat: the equation of state is only valid for a smaller (more
2083        realistic?) range of values than JMD95P/Z and UNESCO
2084      - added masks to the calculation of pressure in store_pressure
2085      - added more check values for density in check_eos (ini_eos.F), some of
2086        the old check values are out of the range of the MDJWF-eos, so don't
2087        expect perfect matches for those
2088    checkpoint46e_pre
2089    
2090    checkpoint46d_post
2091    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2092      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2093      case of pressure coordinates. eosType='JMD95Z' in
2094      combination with buoyancyRelation='OCEANICP' now causes an error.
2095    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2096      in find_alpha/beta.
2097    checkpoint46d_pre
2098    
2099    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2100      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2101    
2102    checkpoint46c_post
2103    o Changes necessary for ocean in p-coordinates
2104     -  Added new buoyancy relation = 'OCEANICP'
2105     -  Added new parameters = gravitySign (this used to be contained inside
2106        the factor dRdZ which I added when we first switched to R coordinates).
2107     X GM/Redi is not compatible (yet)
2108     X bottom drag and no-slip need to be debugged.
2109    checkpoint46c_pre
2110    
2111    checkpoint46b_post
2112    o Added new equation of state -> JMD95Z and JMD95P
2113      - EOS of Jackett and McDougall, 1995, JAOT
2114      - moved all EOS parameters into EOS.h
2115      - new routines ini_eos.F, store_pressure.F
2116    o Added UNESCO EOS, but not recommended because it requires
2117      in-situ temperature (see JMD95)
2118    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2119      unesco.f to be used with POLY3
2120    checkpoint46b_pre
2121    
2122    checkpoint46a_post
2123    o Added (atmospheric) pressure loading
2124      - new field in FFIELDS.h, etc...
2125      - new cpp flag ATMOSPHERIC_LOADING
2126    o Changed hFacC to _hFacC in calc_phi_hyd.F
2127    o Added SHORTWAVE_HEATING to some files for consistency
2128    checkpoint46a_pre
2129    
2130    checkpoint46
2131    further merges from release1_p5
2132    o new ctrl package
2133      - adopted from ECCO environment to enable optimization
2134      - added Eliassen Palm fluxes to controls
2135    o added Eliassen Palm flux controls to gradient check package
2136    o cost package
2137      - Compatible with new ctrl package
2138      - added Eliassen Palm cost hooks
2139      - modif's of existing cost functions
2140    o Adjoint-related bug fixes in kpp:
2141      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2142      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2143    o autodiff package
2144      - flow directives:
2145        + new for S/R do_the_model_io
2146        + enhanced for S/R checkpoint
2147        + new gmredi.flow
2148      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2149        disable adcommon.h/g_common.h by default.
2150      - fixed problem for adjoint of global_max
2151    o modified verification/carbon/
2152    o New setup for adjoint of global_ocean
2153    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2154    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2155    o incorporated hooks for sponge layer code (external_forcing.F)
2156    
2157    checkpoint45d_post
2158    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2159    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2160      (affects plume_on_slope "cg2d" output)
2161    o add new parameter deltaTfreesurf for free-surface time stepping
2162    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2163    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2164    o change phiMin in exp1 (to agree with documentation)
2165    o add new flags:
2166     - T,S forcing inside/outside Adams-Bashforth
2167     - turn off temp,salt advection and/or forcing
2168     - for each tracer, define internal flag for multiDimAdvection & A-B
2169    o monitor: change definition of KE to check conservation of Energy
2170    
2171    checkpoint45c_post
2172    o Removed f90 comments ("!")
2173    o Modified initialisations to enable exf package for MITgcm
2174      (without invoking ECCO_PACKAGE).
2175    o modifications to gradient check package (Martin Losch)
2176      - enable centered differences
2177      - modified format of standard output
2178    
2179    checkpoint45b_post
2180    o cleaned exchange calls in cg2d
2181    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2182    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2183      to configure barotropic setup (Martin Losch)
2184    o moved some initialisations within bi,bj loop in dynamics
2185      (TAF flow dependency)
2186    o in initialise_varia, moved call packages_init_variables
2187      before convective_adjustment_init
2188      (corresponding adjustment of TAF tape initialisation).
2189    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2190    
2191    checkpoint45a_post
2192    o compute Rho over the whole domain (extend iMin,jMin indices)
2193    o specific exchange for X-slice domain (case Ny=1)
2194    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2195    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2196    
2197    checkpoint44h_post = checkpoint45
2198    o Fix to restore differentiability:
2199      place at which packages_init_variables is called in
2200      initialise_varia is crucial for reverse control flow.
2201    o modifications in GMRedi to enable stable adjoint
2202      (corresponding modif's in thermodynamics, dynamics)
2203    o added missing hook for sponge layer code in external_forcing
2204    o modified test cost functions
2205    o storing in gad_advection (plus removal of write(0,*)!
2206    o missing headers TR1.h added in convective_adjustment routines
2207    o errorMessageUnit set non-equal zero in eeboot
2208      (conflict on some platforms, e.g. IBM SP3)
2209    o modified carbon verif.
2210    
2211    checkpoint44h_pre
2212    o vertical grid option: allow to put the Interface at the middle between
2213      2 cell-centers ; replace delZ in pkg/kpp by drF.
2214    o GM Advective form: Tracers are advected using the residual transport (=
2215      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2216    
2217    checkpoint44g_post
2218    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2219      results) ; ifdef missing in thermodynamics.F
2220    
2221    checkpoint44f_pre,checkpoint44f_post
2222    o added PTRACERS package
2223      This allows an arbitrary number of passive tracers to be integrated
2224      forward simultaneously with the dynamicaly model.
2225      + Implemented so far:
2226        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2227        - I/O and checkpointing
2228        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2229      + Not implemented so far:
2230        - KPP
2231        - OBCS
2232      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2233        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2234        line in data.pkg.
2235      + This package is disabled by default since it increases storage.
2236    
2237    
2238    o testscript: added -cleanup option
2239    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2240                 b) enable to filter 2D fields.
2241    
2242    checkpoint44e_pre,post
2243    o re-wrote convective adjustment to use pre-calculated weights
2244      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2245      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2246      Original calls to convect() still in place.
2247    
2248    chkpt44d_pre,post
2249    o added missing EXCLUDE_MONITOR flags
2250    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2251      (incompatible typ in MIN/MAX expressions caused problems
2252      on IBM SP3)
2253    o in genmake added variable MAKEDEPEND
2254      plus resetting for case SunOS
2255    o added timer_stats.c routine for IBM SP3
2256    o removed variables in dynamics
2257    !!! I forgot to create tag chkpt44d_pre !!!
2258    !!! But chkpt44d_pre = chkpt44c_post    !!!
2259    
2260    o real fresh water flux implemented with non-linear free-surface.
2261    
2262    chkpt44c_pre,post
2263    o few fix (mask in shap_s2, EmPmR in external_field_load,
2264      USE_NATURAL_BCS in solve_for_P);
2265    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2266    
2267    checkpoint44b_pre/_post
2268    o merge of relevant stuff from the ecco-branch:
2269      - genmake: removed $S64 overwrite for case SunOS
2270      - pkg/exf: update and corrections for field swapping and obcs
2271      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2272                  harmonized between ECCO and MITgcm
2273      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2274                      updated checkpointing_lev... lists for obcs
2275      - model/src: minor changes in forward_step, plot_field
2276                   added directive for divided adjoint in the_main_loop
2277      - pkg/mdsio: added mdsio_gl_slice
2278    
2279    o check parameters & config (chkpt44a_pre,post)
2280    o OBC and NonLin_FrSurf.
2281    
2282    checkpoint44
2283    o fix bug in mom_vi_del2uv
2284    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2285    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2286    o update AIM experiments (NCEP input files)
2287    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2288    o added some stuff for AD
2289    
2290    checkpoint43
2291    o added two new advection tests
2292    o added global 4x4 degree ocean test
2293    o added test of H&S94 with free surface on cube
2294    o some final mods for gradient check, adjoint,...
2295    
2296    checkpoint42
2297      Fixed AD-related problems:
2298    o Store directives up-to-date with re-arranged Adams-Bashforth
2299      (mainly thermodynamics.F)
2300    o New store directives for multi-dim. advection schemes
2301      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2302      * new common block and key passkey
2303      (mainly gad_advection.F)
2304    o Modified store directives for split of dynamics/thermodynamics
2305      for the case ALLOW_KPP
2306    o Cleaned argument list for timestep_tracer.F
2307    
2308    checkpoint41
2309    o re-formatted/added comments in prologues of key subroutines
2310      to work with protex
2311    
2312    checkpoint40
2313    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2314    o added FLT (floats) package from Arne along with demo. experiment
2315    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2316      implementation of forward-in-time forcing terms
2317    o more mods for non-linear free-surface including new variable
2318    o modified multi-dim method to work on cube
2319    o bug fix in KPP (from DM)
2320    
2321    checkpoint40pre9
2322    o added DST advection schemes
2323    o fix MPI bug on SGI's
2324    o modifications for non-linear free-surface
2325    o fixed conditionals for fixed flow/passive tracer only mode
2326    o added tension/strain form of stress tensor
2327    o changes to commenting of arguments for TAF/TAMC
2328    o added/updated many matlab scripts
2329    o added multi-dimensional advection method for tracers
2330      
2331    checkpoint40pre8
2332    o new package rw/
2333      Added method for dumping intermediate local arrays:
2334      mdsio_writetile - same as mdsio_writefield except works from inside
2335                        bi,bj loop
2336      mdsio_writelocal - same as mdsio_writetile except works for local
2337                         arrays
2338      write_local_r? - higher-level wrapper for mdsio_writelocal
2339      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2340      Example given at end of mom_vecinv.F that dumps some local arrays.
2341    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2342      control flux-form versus vector invariant code.
2343      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2344      or genmake -DISABLE ...
2345    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2346      (additional storing is now needed for case vecinv;
2347      currently nothing implemented to switch this storing off
2348      in case fluxform is used since no CPP flag available).
2349    
2350    checkpoint40pre7
2351    o bug fix in dynamics.F
2352      calc_viscosity called before k=1,Nr loop.
2353    o added some #ifdef's ALLOW_PASSIVE_TRACER
2354    o cleaned initialisations in ctrl_map_ini
2355      related to TAF
2356    
2357    checkpoint40pre6
2358    o split dynamics into thermodynamics & dynamics
2359    o corresponding split of calc_diffusivity into
2360      calc_diffusivity, calc_viscosity
2361      (kpp_calc_diff, kpp_calc_visc).
2362    o Added diffkr, kapgm to control variables
2363    o bug fix in gmredi_slope_limit for ldd97
2364    
2365    checkpoint40pre5
2366    o proper initialization of Adams-Bashforth time stepping
2367      + uses forward step for very first step of model (iter=0)
2368    o re-generated *all* output since almost all output is modified by this
2369      change (sorry but we've been putting this one off for about 2 years)
2370      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2371        *not* regenerated since they are already out of date and I don't
2372        want to create the impression that they are suddenly working.
2373    o removed KAP stuff for DEC's
2374    o modified/added many .cvsignore files in */code and */input
2375    o added new expt "solid-body.cs-32x32x1"
2376      + this uses an alternative form of ini_curvilinear_grid.F which
2377        is not necessarily any better than the current one...
2378    
2379    checkpoint40pre4
2380    o added re-initialisations of utrans,vtrans,rtrans in
2381      calc_common_factors which are crucial for TAF.
2382    o extended iMin,jMin range for calc_common_factors,
2383      calc_diffusivity
2384    o added option ALLOW_PASSIVE_TRACER
2385    o a few minor updates and fixes
2386    
2387    checkpoint40pre3
2388    o created calc_gtr1.F for gad package
2389    o split the_main_loop and re-introduced forward_step
2390    o some recomputations of nIter0 for TAMC
2391    
2392    checkpoint40pre2
2393    o Updated to latest branch of AJA, JMC
2394    o Added gradient check package
2395    o Added routines for passive tracer handling
2396    o Added carbon sequestration sensitivity experiment
2397    
2398    checkpoint39
2399     o Modifications and fixes to support TAMC
2400       (mainly missing or wrong directives)
2401     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2402       in addummy_in_stepping
2403     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2404     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2405     o Included following packages:
2406       cal: calendar
2407       exf: external forcing
2408       ecco: essential routines to control use of cal, exf
2409             (NB: this is not the full ECCO environment)
2410     o disabled some packages by default in genmake
2411    
2412    checkpoint38
2413     o see notes_c37_adj.txt
2414     o corrected wrong layer index in external_forcing_t
2415     o replaced the_main_loop/forward_step by the_main_loop
2416     o removed forceoutput from write_state
2417       (replaced criteria for initial/final state)
2418     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2419    
2420    checkpoint37
2421     o mdsio.F routine split and packaged in pkg/mdsio
2422       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2423        used unless genmake -disable=mdsio)
2424     o allow a more precise surface-geopotential gradient for the atmosphere
2425       taking into account the change in space of Alpha (=1/rho) at the surface.
2426     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2427       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2428     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2429       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2430       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2431     o Time-Average diagnostics defined as a pseudo package "timeave".
2432     o pickup files : old pickup (before c35) did not work with new code (c35
2433       and after) unless activating 2 commented lines in initialise-varia.
2434     o Non-Hydrostatic pickup file Pb fixed.
2435     o bug with Rigid-lid version (since c35) fixed.  
2436    
2437    checkpoint36
2438     o implement Crank-Nickelson barotropic time-stepping
2439     o recover Time-Average diagnostics
2440     o fix Pb in checkpoint (PR#19)
2441     o AIM become a standard package ; clean unused CPP_kees
2442    
2443    checkpoint35
2444     o subtantial rewrite of dynamics.f
2445     o allows staggered time-stepping
2446     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2447     o added bottom drag (linear + quadratic)
2448    
2449    checkpoint34
2450     o Modified exchange routines for correct reverse simulation.
2451     o Added verification output to comply with bug fix in impldiff.F
2452       as of c33 (exp2, natl_box).
2453     o Corrected store directives in dynamics.F
2454     o Corrected array boundaries in impldiff.F
2455     o Corrected array dimensions in gmredi.
2456       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2457     o Added routine GLOBAL_SUM_INT to global_sum.F
2458     o Added mdsio_gl.F for ECCO purposes.
2459    
2460  checkpoint33  checkpoint33
2461   o Fixed bug in lower BC in impldiff.F   o Fixed bug in lower BC in impldiff.F
2462   o Fixed confusion about units of forcing arrays in FFIELDS.h   o Fixed confusion about units of forcing arrays in FFIELDS.h

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