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revision 1.127 by adcroft, Thu Jan 30 18:35:42 2003 UTC revision 1.612 by mlosch, Wed Feb 15 09:25:25 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o seaice:
8      - removed all references to SEAICE_GRID.h fields from
9        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
10        (cubed-sphere configuration will change a little)
11      - grid computations in seaice_init are obsolete now.
12      - cleaned up code a little so that is easier to read (hopefully).
13      - added new (better?) discretizations of advection and diffusion
14        (still commented out)
15      
16    checkpoint58a_post
17    o seaice:
18      - bug fix in advect.F
19      - replace 1 in 3d global fields by kSurface in growth.F
20    o shelfice:
21      - separate shelfice load anomaly from pload (breaks with time
22        dependent forcing), => introduce constant field shelficeLoadAnomaly.
23        Its default is 0., but it may be computed more cleverly from (unknown)
24        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
25        done offline. A good approximation of the pressure load anomaly is
26        necessary to avoid large initial adjustment processes underneath
27        deep-reaching shelfice.
28      - small fix in ISOMIP shelfice_thermodynamics
29      - add more sophisticated thermodynamics of Hellmer (1989), this is
30        now the default
31      - give a few constants more intuitive names
32    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
33      if bulk formulae are used in long integration (especially EmPmR). Turn
34      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
35      if balancePrintMean, the imbalance that is substracted is printed to
36      STDOUT.
37    o fix bug (typo) in obcs_apply_eta.F
38    o add a new package shelfice which enables us to model the circulation
39      underneath shelf-ice with draughts of hundreds of meters.
40     - works
41     - to do: + include improved thermodynamics
42              + check whether kSurfC (from model/inc/SURFACE.h) can be used
43                instead of new field kTopC
44              + can we use topoFile, Ro_surf and existing code in ini_depth.F
45                instead of new field R_shelfIce and new code in ini_depth.F
46                and ini_mask_etc.F?
47              + adjust vertical mixing schemes?
48    o seaice pkg:
49     - add a cpp-flag to include a simple formula for a salinity dependent
50       freezing point of sea water at the surface
51     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
52       meridional stresses are now different (and hopefully correct)
53    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
54       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
55       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
56    o pkg/diagnostics: add options and parameters for regional-statistics
57       diagnostics ; define regions by reading a region-mask from a file
58       (might add other options later)
59    o pkg/bulk_force:
60     - add option and parameters to use AIM surface-flux formulae.
61     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
62       others forcing fields (defined in PARM05, parameter file "data") are loaded
63       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
64     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
65     - use the right EXCH call for uwind,vwind (to work on CS-grid).
66     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
67       and parameters (note: calcWindStress replaces .NOT.readwindstress).
68     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
69    
70    checkpoint58
71    o add "--embed-source" option to genmake2 which, when the supporting
72      tools can be compiled (as determined by genmake2) will turn on the
73      embed_files package which then embeds the entire MITgcm source code
74      (*.[fFhc] + Makefile) used for the build within the executable
75      - requested by CNH but off by default
76      - adds a paltry <9MB to the mitgcmuv executable in most cases
77      - only writes the output when useEMBEDSRC in eedata is true
78    o clean up 3-dim. relaxation codes:
79      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
80      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
81      * Thanks to Tom Haine for testing!
82    
83    checkpoint57z_post
84    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
85      affects output (@ truncation level) of exp. plume_on_slope ; updated.
86    o fix the pickup behavior for obcs in combination with ptracers
87    o fix a bug in ptracers_external_fields_load
88    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
89      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
90    o transfered surface NH pressure to eta field (if exactConserv).
91    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
92         and update lab_sea output.txt file.
93    o completing 3-dim. relaxation code: additional term
94         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
95      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
96      * At compile time, in "EXF_OPTIONS.h" set
97          #define  ALLOW_CLIMTEMP_RELAXATION
98          #define  ALLOW_CLIMSALT_RELAXATION
99      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
100          tauThetaClimRelax3Dim = 15552000.0,
101          tauSaltClimRelax3Dim  = 15552000.0,
102      * 3 cases:
103          1) Use a constant-in-time 3-dim. field
104          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
105          3) Real-time relax. to time-evolving prescribed field
106    o Adding Laplacian-type smoothness constraint on
107      initial and boundary (forcing) controls (ic, bc)
108      * enable at compile-time via
109        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
110      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
111      * Absolute scale somewhat unclear so far
112      * no area weighting was included since no other cost term does so far
113    
114    checkpoint57y_post
115    First step for a NLFS adjoint
116    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
117    o new init. routines for calc_r_star, calc_surf_dr
118    o still need to deal with ini_masks_etc
119    o testreport seemed happy
120    checkpoint57y_pre
121    
122    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
123    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
124    o add new offset feature to offline pkg (plus minor cleanup)
125    o cfc fixes for final year of integration
126    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
127      be in GCHEM_OPTIONS).
128    
129    checkpoint57x_post
130    o fix testreport Pb in multiple test experiment.
131    o cleanup our namelist syntax in verification:
132      - make it more F95 standards compliant (some work still needed)
133      - allows the vast majority of our tests to work with gfortran
134    o Non-Hydrostatic:
135     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
136     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
137    o Allow to apply AB on T,S rather than on AB(gT,gS):
138     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
139     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
140       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
141     - need a "clever" read_pickup to restart from the other AB formulation
142    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
143    o remove some unused variables (reduces number of compiler warnings)
144    o adjoint
145      * Disable useVariableViscosity for adjoint for time being
146        (there are a number of extensive recomputations)
147      * Initialize certain variables needed for adjoint
148    
149    checkpoint57w_post
150    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
151                 fix the singleCpuIO RS version of MDSWRITEFIELD
152       and add a WARNING if using globalFiles=T with multi-processors.
153    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
154      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
155    o tracer advection scheme:
156      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
157       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
158       was not very convenient).
159      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
160       (further tests needed for the implicit DST & Flux-Limiter schemes).
161    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
162      and sRef for convenience, handy, when you want to initialize
163      ptracers in a large domain with a constant non-zero value. Also,
164      untangle ptracers_init.F a little.
165    
166    checkpoint57v_post
167    o change dome exp. to use variable viscosity in side-drag terms.
168    o remove all the files from the cfc_offline test since they are now
169      incorporated into tutorial_cfc_offline which has been producing
170      identical results for a few days of testing
171    o add new parameter: sideDragFactor to enable half-slip-side BC
172      and change side-drag S/R to use viscosity from mom_calc_visc
173      (can switch back by setting sideDragFactor=0.); affects results at
174      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
175       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
176    o vorticity & strain are now computed without masking, to account for
177      no-slip-side BC in variable viscosity calculation ; mask is applied
178      anyway later on, before computing advection/coriolis terms.
179    o modify exp4 to test new obcs support for reading from external files
180      and for passive tracers
181    o fix behavior of ptracers_monitor when monitor output is written to a
182      netcdf-file; still not independent of monitor.F (writes in the same
183      file).
184    o change default value of tRef (put a uniform, meaningful value for ocean
185      & atmos) and initialize sRef (was missing, as Martin mentioned).
186    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
187      to be proportional to enstrophy dissipation length.  Thus,
188       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
189      This is now consistent with Smagorinsky and with the manual.
190    
191    checkpoint57u_post
192    o OBCS and PTRACERS: add open boundary support for passive tracers
193      - either use homogenous (pseudo) v.Neumann conditions or prescribe
194        OB-values from file; this is not different from the way theta and salinity
195        are treated
196      - however, Orlanski-radiation conditions are not supported, and the model
197        will stop if you use pTracers and Orlanski at the same time.
198      - beefed up the rountine obcs_external_fields_load: now only those open
199        boundary values are overwritten with values from files for which there
200        are really files, otherwise the OB-fields remain untouched. This makes
201        it possible to use different OBs at different ends of the domain (as
202        with EXF)
203    o reduce number of exch calls in shap_filt (s2).
204    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
205      truncation level) 4/5 MLAdjust test results (11&12 digits match).
206    
207    checkpoint57t_post
208    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
209    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
210      same truncation, independent of the face number: affects affects several
211      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
212    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
213      note that biharmonic viscosity + no-slip was not tested in any experiment.
214    o fix bug in non-linear free-surf side-drag ; generate new output for
215      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
216    o make mnc honor the writeBinaryPrec flag for most kinds of output
217    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
218    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
219      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
220    o add brackets in multi-terms sum to get same truncation, independent of
221      the face number (manage to get exactly same value of gU,gV at the cs-edge)
222      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
223    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
224      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
225      a maximum grid-scale Reynolds number.  Also, changes all length calculations
226      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
227      Suggested values of viscosity parameters found in mom_calc_visc.
228      Many new viscosity diagnostics available.
229    
230    checkpoint57s_post
231    o Add clearing-house for viscosity calculations, mom_calc_visc and
232      correct numerous bugs in LeithD and Smagorinsky discretizations.  
233      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
234      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
235      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
236      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
237      The Strain-Tension form is now called with useStrainTensonVisc=.true.
238      ViscAhStrain and viscAhTension are now retired.
239    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
240    o In response to JMC's bug report, genmake2 now ignores any soft-links
241      that it finds in the *current* directory when searching for files.
242      Soft-links found in any other source directories will still work as
243      they did before.
244    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
245      a C routine to unlimit the stack size
246    o mnc-ify pkg/aim snapshot vars
247    o mnc-ify pkg/land as requested by Daniel
248    o various changes to mnc including:
249      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
250      - output can now be grouped so that all files within a group
251          change the ITER portion of their names in lock-step together
252      - can now read ("global") PER-FACE (in addition to PER-TILE) files
253          and works with both EXCH1 and EXCH2 (but needs more testing)
254      - writing works for all verification test cases w/ g77 on Linux
255    
256    checkpoint57r_post
257    o make MNC variable initialization happen earlier
258    o add diagnostics for (almost) each term of the momentum Eq.
259    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
260    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
261    o remove MINIMAL_TAVE_OUTPUT option ;
262      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
263    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
264      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
265    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
266    o add time-dependent SST, SSS control
267    o cost terms in ecco/ modularized (new cost_generic.F)
268    o cost_averages routines are modularized (new cost_averagesgeneric.F)
269    o new infrastructure for seaice model vs. obs misfits in seaice/
270      * driver from the_main_loop.F is seaice_cost_driver.F
271      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
272      * gradient check in Exp. 6a of natl_box_adjoint/
273    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
274      (see README file)
275    
276    checkpoint57q_post
277    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
278    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
279      - bug was reported by Jean-Michel and Ian Fenty
280    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
281      update exp. cpl_aim+ocn output.
282    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
283      Needed for high-res. runs with large global files
284      to be able to limit tapelev size
285    o Changed some tests for adjoint:
286      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
287      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
288      * global_ocean.90x40x15/ back to default 3-level checkpointing
289    o Modifications to enable scripted COMMON to MODULE conversion
290      * verification/OpenAD/code/ has necessary scripts and description;
291      * converts, compiles and runs successfully;
292    
293    checkpoint57p_post
294    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
295    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
296      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
297    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
298    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
299      (was already the case for dissipation with mom_vecinv,
300       and also the case for grad.PhiHyd when staggered-timeStep)
301      This will allow to put dissipation out-off the AB time-stepping.
302     Unfortunately, affects truncation error. Update output of exp. that "fails"
303      (cg2d matching number) and leave the others for later: front_relax(10),
304      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
305      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
306    
307    checkpoint57o_post
308    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
309      (2) its ready to be documented during the 20050801 DocFest
310    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
311      for ideal_2D_oce and lab_sea on linux_ia32_g77
312    o set to #undef CTRL_SET_OLD_MAXCVARS_30
313      in global1x1_tot/code_seaice_adj to access indices 32, 33
314      (worth another tag)
315    
316    checkpoint57n_post
317    o adding precip control xx_precip 32
318    o adding swflux control xx_swflux 33
319    o Replacing 10 forcing penalty cost routines by 1 generic.
320    o Implementing partitioning in time-mean and variable adjustment
321      for atmos. state.
322    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
323    o in natl_box_adjoint:
324      * updated exp 1 to 10
325        (but does not have time-mean vs. variable split results yet)
326    o updated global1x1/*_seaice_adj/
327      to incorporate latest changes
328    o enable useSingleCpuIO for mdsio vector routines
329      (applies in particular to tapelev I/O)
330    o removed inefficient K-loop in all active_file*control*.F
331    
332    checkpoint57m_post
333    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
334      and advect_cs (use EXCH-2 and standard cs-32 grid files).
335    o pkg/exch2: filling of face-corner halo regions is optional
336      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
337    
338    checkpoint57l_post
339     tag before updating tutorials (pre-release-2)
340    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
341       for output and interpolation of input fields onto model grid)
342    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
343       Affects results of exp. rotating_tank ; update output.txt.
344    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
345          and taking the square quantity and/or using a fraction-weight field.
346    o fix aim_diagnostics_init.F mate numbers.
347    o add mnc output capability to diagnostics/diagstat and update
348      our cvsignore files for the ACSII output generated
349    
350    checkpoint57k_post
351    o lab_sea now uses diagnostics package and provides a suite of
352      new EXF diagnostics output.
353    
354    checkpoint57j_post
355    o exf
356      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
357        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
358        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
359      * extended diagnostics output
360        - now includes all EXF variables
361        - hs, hl moved to common block
362        - separate S/R for diagnostics, called after ctrl vector is added
363        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
364        - EXFqnet contains true Qnet (i.e. includes qsw)
365      * updated verif. lab_sea, global_with_exf
366      * Rearranging hflux (exf_mapfields -> exf_getforcing)
367        to ensure that diagnostics sees a true EXFqnet
368    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
369    o diagnostics pkg: change pointers so that 1 diagnostic can be used
370      several times with different frequencies.
371    o mnc-ify the thsice package as requested by Daniel Enderton
372      - the monitor--MNC output needs work
373      - many attributes need to be added (most are currently blank)
374    o mnc-ify theaim_v23 package as requested by Daniel Enderton
375      - many attributes need to be added (most are currently blank)
376    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
377    o add Sadourny like discretization to the 4th.O vorticity advection scheme
378    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
379      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
380         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
381    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
382     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
383    
384    checkpoint57i_post
385    o Diagnostics package was changed: diagnostic allocation is now deactivated
386      by setting an empty file name in the namelist (used to be by setting 0 frequency)
387    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
388      add 1rst Order upwind vertical Shear.
389    o add a quick fix for A/B checkpointing in OFFLINE mode
390    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
391      end-run around the C/Fortran linking horror in eesup/src/timers.F
392    o added pkg/runclock: allows user to terminate run based on wall clock
393    o added non-hydrostatic scaling parameter: nh_am2
394    o pkg/my82: futile attempt to make results compiler-independent by adding
395      some "_d 0", etc. no effect.
396    o for mnc output, fill the 'T' coordinate var with myTime and create a
397      separate 'iter' variable for iteration count
398    o pkg/diagnostics:
399      add new capability: output of Global/Regional & per-level statistics ;
400      tested against monitor output (including land & thSIce) on various exp.
401    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
402    
403    checkpoint57h_done
404      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
405      data.diagnostics, data.gchem, data.ptracers) is done.
406    
407    o pkg/diagnostics: prepare for Global/Regional statistics.
408      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
409    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
410      and rename it: DIFFERENT_MULTIPLE
411    
412    checkpoint57h_post
413    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
414    o pkg/diagnostics: change output frequency, now in seconds (instead
415      of Nb of iterations). This requires to change data.diagnostics.
416    checkpoint57h_pre
417    
418    o in mnc, let the user create the output dir if both mnc_outdir_date
419      and mnc_outdir_num are false
420    o add fflags() to pkg/diagnostics which allows one to specify, on a
421      per-file basis, the file precision [default behavior is unchanged]
422    o added diagnostics to pkg/kpp, including computation of mixed layer
423      depth based on a temperature/density criterion
424    o updated verification/natl_box to test the new pkg/kpp diagnostics
425    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
426    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
427    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
428      not mnc -- this mistake was found by JMC and is now corrected
429    
430    checkpoint57g_post
431    o add Adams-Bashforth 3rd Order time stepping:
432      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
433      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
434    checkpoint57g_pre
435    
436    o make lambda[Theta,Salt]ClimRelax spatially varying
437      (default remains spatially uniform constant based on tau)
438    o added new control variables
439      * init. uVel, vVel, etanN
440      * lambda[Theta,Salt]ClimRelax
441    o separate masks used for ctrl_pack/unpack 'from write_grid' output
442      (suggested by G. Forget)
443    
444    checkpoint57f_post
445    o add parameter "baseTime" = model base time = time at iteration zero
446      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
447      account for baseTime shift
448    o move Coriolis arrays from PARAMS.h to GRID.h
449    checkpoint57f_pre
450    
451    o mnc-ifying the seaice package
452    o introduced an alternative length scale calculation for use in the limiting
453      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
454    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
455    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
456      as well as grad(vort3).  Made it compatible with both approximate form
457      for the cubed sphere and full form of these gradients.  Added flag
458      useFullLeith to select between approximate and full form.  
459    o add "d0" in getcon.F to reduce differences between compilers/platforms
460      update output.txt of exp. fizhi-gridalt-hs
461    o change port_rand funtion to allow to set the seed.
462    o fix obscure MNC bug involving conversion between reals and integers
463      - it caused no problems with certain (eg. gcc, ifc) compilers but the
464        new version is now more standards-compliant
465    o adjoint-related modifications
466      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
467      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
468      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
469    
470    checkpoint57e_post
471    o Adding eddy stress controls a la Ferreira et al.
472    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
473    
474    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
475      update output.txt of exp. fizhi-gridalt-hs
476    o add more "Z" dimensions and associated coordinate vars to MNC
477    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
478    o parameter calendarDumps: when set, approximate months (30-31 days) and years
479      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
480      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
481      months and years.  Requires pkg/cal.
482    o diagnostics: add pickup functionality
483      - off by default for backwards compatibility
484      - current version only uses MDSIO -- MNC will be added
485    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
486    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
487    
488    checkpoint57d_post
489    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
490    o modify verification/ideal_2D_oce so that it tests the creation of mnc
491      output from the diagnostics package
492    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
493    o make genmake2 more portable by using ".$FS" instead of ".f" for more
494      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
495    o add coordinate variables to the MNC output from the diagnostics package
496    o change MNC-flags default value: true when useMNC=TRUE
497    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
498      the ability (off by default) to read the grid information using MNC
499    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
500    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
501    o do snap-shot diagnostics at the middle of the time-interval (instead of
502      at the end).
503    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
504      new test for AIM with thSIce + slab-ocean
505    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
506    o move state variable diagnostics to the beginning of the time step ;
507      (note: still needs some work specially for snap-shot diagnostics)
508      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
509    
510    checkpoint57c_post
511    o Change testing option (-ieee) to get closer agreement between g77 & ifort
512    o generate new output.txt files on faulks with g77 & the new -ieee option
513    checkpoint57c_pre
514    
515    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
516      update output.txt of exp. global_ocean.90x40x15
517    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
518      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
519    o add saltFlux(+File) forcing capability with periodicExternalForcing
520    o allow to use pkg diagnostics for GM-Redi & ThSIce output
521    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
522    o improvements for the MNC output from DIAGNOSTICS:
523      - correct handling of the unlimitied dimension
524      - all dims now have associated coordinate variables
525      - variables located at U, V, and Corner ("Z") points are now written
526        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
527        *all* data points are output
528    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
529    o added pkg/seaice/seaice_monitor.F
530    o mdsio_readfield.F can now read files visible only to master MPI process.
531    o pkg/seaice: some test code for ice-modified ocean stress
532    o exf_getffields interpolation defaults to bilinear for all scalar forcing
533      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
534      spurious negative numbers for precipitation and humidity.  Will cause
535      some small numerical differences for integrations using pkg/exf/exf_interp.F.
536    o pkg/ctrl/
537      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
538        May be enabled via doPackDiag
539      *  introduce z-scaling of
540         + gradient (doZscalePack) and
541         + control (doZscaleUnpack)
542    o pkg/mdsio/
543      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
544      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
545    
546    checkpoint57b_post
547    o simplify options in diagnostics_fill arguments (remove weird combinations)
548    o fix MNC coordinate variables so that they now contain per-face index
549      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
550      general, EXCH2 grids are only aligned to a "local" coordinate system
551    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
552    o Implement instantaneous output within pkg diagnostics:
553      setting a negative frequency in data.diagnostics produces
554     "snap-shot" output (as opposed to time-average if freq > 0)
555    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
556      NOTE: change ptracer diagnostics name: use 2 characters to work with
557            more than 9 tracers. Add also diagnostics of advect & diffus flux.
558    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
559      becomes the coordinate variable for the 'T' dimension
560    o add CF-style coordinate variables to MNC
561      - just a first cut:  numbers are meaningless on the cubesphere and
562        missing along the T axis but otherwise it works!
563    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
564    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
565    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
566      this is based directly on what the model compute, so that the content of
567      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
568    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
569    o clean up build options files for SunOS, in particular
570      - remove -traditional from xmakedepend
571      - change -xarch=v9 to -xarch=native for f77
572      - restore use of make (not gmake)
573      - add CC=gcc if using g77
574    o changes per discussion of AM, JMC, & EH3 today:
575      - move redundant "grid" variables out of "state" -- in preparation of
576        creating proper CF-style coordinate variables and in recognition
577        that any/all grid variables can be easily copied (eg. w/NCO) from
578        the grid files into any of the other NetCDF files
579      - *always* output grid variables with MDSIO (this will eventually be
580        changed)
581      - output MNC grid file if useMNC is true
582    o every instance of _END_MASTER() has been found and replaced with
583      _END_MASTER( myThid ) in order to satisfy certain picky Sun
584      preprocessors
585    o re-arrange diagnostics pkg initialisation:
586     - allow each package to extend the available diagnostics list
587     - add some checking and fix small problems (multi-threaded, ...)
588     - new S/R diagnostics_fill (replace fill_diagnostics):
589       look through the short list of active diag. (instead of the long list)
590       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
591    
592    checkpoint57a_post
593    o this set of changes restores TAMC compatibility
594      tested for global_ocean.90x40x15 adjoint on trough
595      (what a pain)
596    
597    checkpoint57a_pre
598    o some modifs in tools/build_options for sunos
599    o call ctrl_pack for ctrl at end for optimcycle=0
600    
601    checkpoint57
602    o add horizontal bi-harmonic viscosity for vertical velocity
603      - new parameter viscA4W (defaults to viscA4)
604      - affects only non-hydrostatic code
605      - to be done: no-slip lateral boundary conditions
606    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
607    o implement Implicit Vertical advection for pTracers
608    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
609      (implemented also for implicit vertical diffusion & advection)
610    o OBCS: extend application of tracer open boundary conditions
611      to a strip beyond the boundary of width Olx/Oly
612    o add call monitor to TAF set of required calls (flow directives)
613      and include in natl_box_adjoint
614    o untangle a few ifdefs related to cost, ctrl, autodiff
615      untangel a few ALLOW_ECCO_OPTIMIZATION
616    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
617      (theta2, salt2 in ecco_cost_weights)
618    
619    checkpoint56c_post
620    o OBCS as control variables
621      - update ctrl_ad_diff.list, obcs_ad_diff.list
622      - remove balance of obcs controls from default
623      - fix index bug nobcs in ctrl_init
624      - fix dummy fields filen in ctrl_pack
625      - add dummy weights for obcs
626    o lsopt: comment out fort.94 output
627    o optim:
628      - remove unnecessary header files
629      - adjusted namelists
630      - add xerbla.F to Makefile
631    o exf:
632      - multiple modifications of exf_check_range
633      - unit change in exf_init_runoff from [m/year] to [m/s]
634    o mdsio:
635      - i/o-vector change debugLevel from debLevA to debLevB
636    
637    checkpoint56b_post
638    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
639      is called from DO_THE_MODEL_IO
640      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
641      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
642      - clean up PTRACERS_WRITE_TIMEAVE a little
643    o add another verification experiment that tests both the cfc-pkg and
644      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
645      reactive tendencies treated inline with regular timestepping
646    o testreport previously did a lousy job of comparing small numbers, so
647      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
648      implemented in the little c-progam tmp_cmpnum.c which is embedded in
649      testreport.
650    o ptracers_monitor: bug fix for MPI
651    
652    checkpoint56a_post
653    o GCHEM: finish reorganizating the package
654      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
655        (introduces another 3D-array for each passive tracer, but only if
656        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
657        gchemTendency is not needed because the timestep is done separately)
658      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
659      - GCHEM is now---more or less cleanly---separate from PTRACERS
660      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
661        so clear to me how that should be done in a general way.
662    o CFC: improve formatting of output in CFC_ATMOS
663    o PTRACERS:
664      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
665        that ALL experiments with ptracers enable can be checked. This makes
666        GCHEM_MONITOR obsolete.
667      - include a runtime parameter PTRACERS_monitorFreq that defaults to
668        monitorFreq
669      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
670    o add PTRACERS (PTR0[1-5]) to testreport output
671    o exf_check_range:
672      * default changed to .TRUE.
673      * will check values for niter0 if debLevA, every timestep if debLevB
674      * STOP in exf_check_range if 'out of range'
675      * range chosen generous to allow for potential extema
676      TBD: a version with stricter range
677           permitted range would be runtime parameters
678    o GMredi:
679      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
680      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
681      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
682    o GCHEM:
683      - move call to GCHEM_FORCING_SEP, so that it is now called before
684        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
685      - introduced a useGCHEM runtime flag and applied it everywhere.
686      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
687        this flag is now only visible within GCHEM-pkg routines.
688      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
689        be replaced by a 3D array that is computed before thermodynamics; for
690        this, the tracer ID iTracer had to be included into the parameter list
691        of ptracers_forcing
692      - set up forward_step to call gchem_forcing, that will replace
693        gchem_forcing_int in ptracers_forcing
694      - cleaning up
695    o small cleaning of exch2: remove files that are also in eesupp/src
696    
697    checkpoint56
698    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
699    o mnc: cleanup "full" files--fixes out-of-memory problem
700    o ECCO-GODAE
701      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
702      * fully merged and updated from SIO code
703        windstress sign change affects
704        - exf_inscal_[u/v]stress
705        - sign of xx_tau[u/v] adjustments
706        - signs in cost_scat
707      * ctrl_get_gen: avoid update of tau[u/v] for first few days
708      * natl_box_adjoint updated and compressed
709      * 2-level checkpoint switch added
710        (tested in EXP. 1 of natl_box_adjoint)
711      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
712    o SVD
713      * first complete, non-hacked version for SVD calculations
714      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
715        performed via direct access files admtlm_vector.it????
716        (via ctrl_[un]pack)
717      * optimcycle is used for ARPACK iteration counter
718        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
719      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
720        and add linear transforms where necessary
721      * controls are initial/final SST, SSS (can be extended; need to check
722        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
723    o mdsio: filename info to both stderr, stdout
724    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
725      from sign change
726    
727    checkpoint55j_post
728    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
729      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
730    o add consistent build directories and .cvsignore files to verification
731    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
732    o make all subroutines 30 or less characters in length for certain older
733      compilers to work (a thorough search only turns up two routines in
734      pkg/ptracers)
735    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
736      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
737    
738    checkpoint55i_post
739    o change arrays for total vertical diffusivity (2.D if explicit,
740      3.D if implicit) ; each ptracer uses its own background value.
741    o added mnc/NetCDF output capability to ocn_compon_interf
742      - added bits to verification/cpl_aim+ocn so that it can run on
743        ITRDA and other clusters without the mpirun "-wd" option
744    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
745      configuration
746    o give MNC the ability to create additional files rather than
747      exceeding a specified file size limit "MNC_MAX_FILESIZE"
748      - the default is just less than 2GB which is a practical limit
749        on many systems
750    o Compute the non-local term using either KPP vertical diffusivity (=default)
751       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
752    
753    checkpoint55h_post
754    o add verification test "vermix"
755    o remove all the *_ioinc flags and replace with the single global
756      outputTypesInclusive flag
757    o allow to set a vertical profile of vertical diffusivity for T & S
758    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
759    o useMNC moved from data.mnc to data.pkg
760    
761    checkpoint55g_post
762    o Renaming carbon AD experiments to comply with testreport conventions
763    o Updating adjoint of Held-Suarez hs94.1x64x5
764    o Fixing directives for non-ECCO forward_step, after ECCO directives
765      have been fixed to avoid recomp. of do_oceanic_phys
766      Works well for global_ocean.90x40x15,
767      but recomp. issue remains for carbon
768    o Updating adjoint output for natl_box_adjoint after
769      pkg/ecco has been modified (see taga c55d_post)
770    
771    checkpoint55f_post
772    o rename to timeave_init_fixed
773    
774    checkpoint55e_post
775    o some delicate re-shuffle of store directives to avoid one
776      extra call of do_oceanic_physics
777      affects ecco_the_main_loop.F, do_oceanic_physics.F
778      checkpoint_lev1_directives.h
779    o NB: this may break global_ocean adjoint temporarily,
780      but it is clear how to fix it. Will do later, need this now.
781    
782    checkpoint55d_post
783    o ECCO specific cost function terms (up-to-date with 1x1 runs)
784    o ecco_cost_weights is modified to 1x1 runs
785    o modifs to allow observations to be read in as
786      single file or yearly files
787    o enable to read exf forcing fields as either
788      single file or yearly files (flag useExfYearlyFields)
789    checkpoint55d_pre
790    
791    o switch between 2-level and 3-level checkpointing
792    o add ability of MNC to write local and "partial" (eg. 2D slices where
793      the full 3D field is never actually stored) arrays to NetCDF files
794      with the correct (that is, the complete multi-dimensional) set of
795      array indicies
796      - used in mom_vecinv() to write the diagFreq output
797      - tested (demonstrated) in verification/aim.5l_cs
798    o further mnc-ification
799      - add verification/lab_sea to the list with mnc setups
800      - fix undefined mnc v-names in cd_code
801      - add kpp to mnc output (both snapshot and timeave)
802    o non-hydrostatic code
803      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
804        in calc_gw.F
805      - defaults to viscAh
806      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
807        friction or Leith) in non-hydrostatic mode, as long as there is
808        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
809    o pkg/cost
810      extend simple cost functions to treat time mean quantities
811      (T,U,V) via cost_accumulate_state from cost_tile
812    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
813        be 2 times larger than the minimum size the advection scheme requires.
814        now get a perfect conservation of salt in advect_cs test-exp (updated)
815    o GGL90 (Gaspar's TKE mixed layer)
816      - add horizontal diffusion of TKE, requires exchanges in
817        do_fields_blocking_exchanges, horizontal diffusivity is zero by
818        default. In OPA there is no horizontal diffusion of TKE but the
819        mixing coefficients are computed from a horizontal average of TKE of
820        6 points or so. I think that diffusion has a little more physical
821        justification.
822      - clean up ggl90_calc in the hope of reducing memory usage (this hope
823        was in vain)
824      - mask tke-variable in ggl90_init
825    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
826    o fix biharmonic diffusion on CS-grid.
827    o more obcs stuff
828      - added obcs_external_fields_load as an alternative to the EXF-pkg option
829        for reading boundary values. This routine is called from
830        obcs_prescribe_read
831      - updated obcs_check
832      - changed sponge layer relaxation parameter units for days to seconds
833      - turned off sponge layer by default
834      - changed argument list of OBCS_CALC to myTime+deltaTclock
835      - fixed about 35 bugs in obcs_external_fields_load
836    
837    checkpoint55c_post
838    o obcs stuff
839      - new runtime flags useOBCSprescribe, useOBCSbalance
840      - re-arranged obcs_calc
841      - moved exf_getobcs to obcs_prescibe_read
842        obcs_prescibe_read is called after ORLANSKI stuff
843        and independent of it (executable can contain all).
844      - updated obcs_check
845      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
846        These may be necessary only if tangential velocities are
847        prescribed at OB, not sure, needs testing.
848    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
849      which simplifies the calls and passes the ifc check-bounds test
850    
851    checkpoint55b_post
852    o add a 2D scalar, Z location, exchange_2 routine.
853    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
854      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
855      affects advect_cs results (for the wrong reason): update output.txt
856    o use a more standard discretization for biharmonic viscosity ;
857     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
858      affects results of dome set-up: update output.txt
859    o fix gad_advection.F (CubedSphere part), back to version 1.23
860    o fix bug in mom_vi_del2uv.F (CubedSphere part).
861    
862    checkpoint55a_post
863    o merged code to
864      * prescribe/read time-dependent open boundaries
865        (works in conjunction with exf, cal)
866      * sponge layer code for open boundaries
867      * each boundary N/S/E/W now has its own CPP option
868        (healthy for the adjoint)
869    
870    checkpoint55
871    o up-to-date adjoint of previous breaks
872      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
873      - global_ocean_ebm: adjoint still needs fix (TLM ok)
874      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
875      - carbon: * remove tr1-related adjoint verification
876                * add ptracer as control variable
877    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
878      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
879    
880    checkpoint54f_post
881    o in verification/carbin/ remove experiment related to
882      ALLOW_PASSIVE_TRACER (array tr1 etc)
883      code_ad/ input_ad/ results_ad
884    
885    o add two new packages
886      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
887        + subject to optimization (memory)
888      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
889        + subject to reordering (many GOTOs in the original code)
890        + so far opps is called for every (i,j) point, and then operates in
891          the vertical; one may want to reorder the scheme in order operate in
892          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
893          fields)
894    o overhaul of IO so that we now have flags for MDSIO and/or MNC
895      - all verification tests compile and run with linux_ia32_g77
896      - defaults are compatible with current input files--nothing
897        should change if you were not previously using MNC
898      - MNC output has been added in numerous places (eg. timeave)
899        but there are still a few writes not yet do-able with MNC
900        (this is in progress)
901      - flags now allow for either/or/both use of MDSIO and MNC and
902        documentation will soon follow
903      - numerous small formatting cleanups for ProTeX
904    o add version info (via BUILD_INFO.h) to MNC and stdout
905    
906    checkpoint54e_post
907    o add two new packages
908      - pp81 (Packanowski and Philander, 1981), Richardson number and
909        stratification dependent mixing
910      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
911      - these scheme operate in a similar manner as KPP (without ghat, of
912        course), however there is only one diffusivity that is used for both
913        temperature and salinity (and passive tracers)ç
914    o add offline package
915    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
916      provided by Stephanie Dutkiewicz
917    o genmake2: add ability to search for C compilers and cleanup test output
918      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
919    
920    checkpoint54d_post
921    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
922    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
923      leading to additional shift by 5 days each year of integration
924       (i.e. leading to considerable offset over the years)
925    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
926    o start with no AB and no initial filtering (staggerTimeStep):
927      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
928    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
929      (external loading & cpl import/export stay in forward_step.F)
930    o update coupling interface to work with new staggerTimeStep
931    o change MDSIO ptracers_pickup.
932    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
933    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
934    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
935    
936    checkpoint54c_post
937    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
938      this affects (truncation error) output.txt of test-exp:
939       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
940    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
941    o change Qnet to always be the net heat flux, (+upward).
942      affects (truncation error) output of natl_box exp.: updated
943    o define the max number of passive tracers in PTRACERS_SIZE.h
944    o start to test mnc routinely in exp0
945    o add sea-ice loading (sIceLoad) as a new forcing field.
946    
947    checkpoint54b_post
948    o add testreport "-j JOBS" option for parallel builds (tested and pretty
949       impressive on Altix and Opteron systems)
950    o diagnostics can now write NetCDF files through the mnc package
951    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
952    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
953    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
954      affects (truncation error) output of lab_sea & natl_box exp.: updated
955    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
956    
957    checkpoint54a_post
958    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
959    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
960    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
961    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
962      + internal_wave (shift in writing cg2d_ini_res)
963    checkpoint54a_pre
964    
965    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
966      - modified verification/lab_sea and natl_box_adjoint accordingly
967    
968    checkpoint54
969    checkpoint53g_post
970    o prepare splitting of thermodynamics: store convect.counter in common block
971    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
972      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
973    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
974    o new parameter "nShapS": allow to treat differently S from T (nShapT)
975    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
976    o restore adjointability
977    
978    checkpoint53f_post
979    o modifications that affect AIM experiment results (update output.txt):
980      - no advection of S at top interface Nr (pkg/generic_advdiff)
981      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
982    o AIM pkg:
983      - include stability function into surf.Flux derivative relative to Tsurf
984      - calculate clear-sky radiation & surface temp. change (for diagnostics)
985    
986    checkpoint53e_post
987    o merged cylindrical coord configuration
988    o added rotating_tank experiment
989    checkpoint53e_pre
990    
991    checkpoint53d_post
992    o faulks upgraded: re-generate output.txt that have changed:
993       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
994    o Added Bryan and Lewis, 1979, vertical diffusivity profile
995    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
996    o added Sadourny discretization of Coriolis
997      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
998      - re-enabled use of omega3 (useAbsVorticity)
999    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1000      vector-invariant equations
1001      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1002    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1003      hopefully without new bugs
1004      - still to do: biharmonic friction for non-hydrostatic w
1005    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1006    o regenerated output for global_ocean_ebm (using -ieee)
1007    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1008      of mom_common/
1009      - simple re-arrangement of instructions within computing loop
1010    checkpoint53d_pre
1011    
1012    checkpoint53c_post
1013    o new version of coupler for AIM+thSIce and Ocean models
1014     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1015     - land: change Evaporation of snow
1016     - aim with thSIce: fix bug in snow-precip.
1017    o changes to calc_gw.F
1018     - bug fix for w^2 term near the bottom boundary
1019     - (hopefully) improve the lateral slip boundary condtions for use with
1020        partial/looped cells
1021      - because the bug fix changes two verification experiments anyway (exp5
1022        and plume on slope), change the lateral boundary condition from half slip
1023        to the value of no_slip_sides
1024    o ebm package wasnt quite up to the parallel task. Fixed that.
1025    o Adjoint of EBM package + verification
1026      * TLM OK
1027      * ADM not sufficient accuracy yet (needs further testing)
1028    
1029    checkpoint53b_post
1030    o Commiting new energy balance model to repository
1031      * package is pkg/ebm
1032      * verif. is verification/global_ocean_ebm
1033      * references are in ebm_driver.F
1034    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1035    C        Global thermohaline circulation. Part I:
1036    C        Sensitivity to atmospheric moisture transport.
1037    C        J. Climate 12(1), 71-82
1038    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1039    C        Global thermohaline circulation. Part II:
1040    C        Sensitivity with interactive transport.
1041    C        J. Climate 12(1), 83-91
1042    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1043    C        Destabilization of the thermohaline circulation
1044    C        by atmospheric eddy transports.
1045    C        J. Climate 7(12), 1870-1882
1046    o Will need long integration testing.
1047    checkpoint53b_pre
1048    
1049    o created pkg/mom_common in preparation for variable viscosity code
1050    o renamed and split ini_mnc_io
1051    o pkg/land: only liquid water can diffuse or run-off
1052    o AIM using land: soil wetness availability account for snow
1053    o added printMapIncludesZeros to EEPARMS namelist
1054    
1055    checkpoint53a_post
1056    o restore TAMC compatiility for exf_constants.h
1057      (no usage of _d in .h)
1058    o Additional storing in KPP in an attempt to fix
1059      TAMC problem with adjoint of KPP code.
1060      (no success...)
1061      Identical code works fine with TAF.
1062    o Fixed verification/natl_box_adjoint experiments.
1063      Initial conditions for Experiments 4 and 5 are now
1064      set to "SEAICE_initialHEFF=0", which is more reasonable,
1065      and hence gives results closer to that of Experiment 2.
1066      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1067    
1068    checkpoint53
1069    o stable checkpoint with up to date adjoint
1070      TLM tests only run for 1st grdchk at the moment. Its unclear if
1071      this is a code problem or a problem with resetting code for g_
1072      variables that is being autogenerated wrong.
1073      Otherwise:
1074       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1075       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1076         are both still in chaos following their security messes.
1077    
1078    checkpoint52n_post
1079    o various build (mostly genmake2) changes including:
1080      - ability to build/run more easily within Cygwin and MacOS X
1081      - more complicated Makefiles with a stronger dependence on Gnu Make
1082    o pkg/seaice modifications
1083      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1084        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1085        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1086      - changed proxy for geostrophic velocity and updated
1087        verification/lab_sea/results/* accordingly
1088      - removed ADI dynamic solver from pkg/seaice
1089      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1090        they caused a segmentation fault under certain circumstances
1091      - removed unused field WATR
1092    o bug fix in exf-package:
1093      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1094         now reflect that.
1095    o small fixes in the cal-package:
1096      - set reference date to first of January for the 'model'-calendar
1097      - failing of cal_CheckDate in cal_FullDate now actually results in a
1098        warning
1099    o small modifications in exf-package to increase flexibility:
1100      - change climtempfreeze from a constant to a runtime parameter that
1101        is specified in data.exf_clim (default = -1.9)
1102      - introduce runtime parameter windstressmax (default = 2.0) that is
1103        specified in data.exf
1104    o fix in pkg/thsice:
1105      - update Evap (Tsf changes) to be consistent with Latent heat flux
1106      - maintain snow precipitation unchanged (even if Tsf >=0).
1107     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1108    
1109    checkpoint52m_post
1110    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1111      this does not change any of the results, because myIter=0 in swfrac always
1112      lead to jwtype=2 (the default anyway), but the call makes little sense
1113      as a default
1114    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1115    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1116      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1117    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1118    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1119    o extending useSingleCpuIO option to work with new exch2 I/O format
1120      - old-style, missing-tile I/O is still accessible by defining CPP
1121        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1122    o monitor package can write to NetCDF files and/or STDOUT
1123    o fix re-definition bug in MNC_GRID_INIT_ALL()
1124    o doc/api_reference added
1125      - a framework for building an API Reference Manual using all
1126        the "protex" comments embedded in the code
1127      - see pkg/generic_advdiff, pkg/mnc for examples
1128    o MNC:
1129      - make myThid the last argument for all subroutines
1130      - new default for the grid files: NO halos
1131      - add useMNC and other run-time flags
1132      - separate per-file-group handling of the unlimited dimension
1133      - early initialization of MNC w/ flags read at the eeboot stage
1134        and lookup tables set in initialize_fixed
1135      - write all MNC output to a freshly-created directory
1136    o thermodynamics sea-ice (thsice) is now tested with testreport.
1137    o test exp. advect_cs: use the standard cs32 grid ; update output.
1138    o Added functionality to grdchk:
1139      pick global i,j,k position (or nearest wet) where to perform check.
1140    
1141    checkpoint52l_post
1142    o new land formulation:
1143      a) use ground enthalpy as prognostic variable to ensure exact
1144         energy conservation.
1145      b) account for water temperature and for latent heat of freezing
1146         in all processes (rain, run-off, ground storage)
1147      c) compute surface and ground temperature implicitly.
1148    o aim_v23 modification for new land model:
1149      a) Treat separately land / ocean / sea-ice surface fluxes
1150         to allow implicit computation of land & sea-ice surface temp.
1151      b) add snow precipitation.
1152    checkpoint52l_pre
1153    
1154    o fix problem (when 1 tile is empty) in min/max monitor.
1155    o fix bug in timeAve (u,vZetatave in common block)
1156    o no restoring terms under ice for pkg/seaice
1157    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1158    o bug fix for pkg/seaice pickups
1159    o change MNC call locations and add coordinate attributes
1160    o mask vorticity at the corner ; affects global_ocean.cs output
1161    o fix ini_curvilinear_grid ; test CS experiments with mpi
1162    o aim.5l_cs: modify sea-ice fraction input file ; update output
1163    o exf: Adding simple range check routine for exf fields after read
1164    
1165    checkpoint52k_post
1166    o removed top-level directory "diags"
1167      - we migrated these functions to pkg/timeave a long time ago
1168    o fixed bug introduced in pkg/monitor
1169    o accuracy ctrlprec = 32 insuffient for gradient checks using
1170      averaged fields (I/O via cost_averages)
1171      -> use ctrl.h in active_file*.F to control I/O precision.
1172    o paramter list of CALL ADTHE_MAIN_LOOP
1173    o added initial do_the_model_io to ecco
1174    o set all ...Freq to zero after cost_final
1175      taveFreq, dumpFreq, pChkptFreq
1176    o MAIN and ECCO differentiability restored
1177    
1178    checkpoint52j_post
1179    o fix nchklev in tamc.h for global_ocean...
1180    o Bringing flow and store directives up-to-date
1181    o Really weird thing!
1182      call do_the_model_io from the_main_loop with parameters
1183      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1184      TAF places a faulty re-call of initialise_varia
1185      after cost_final call which should not be there!
1186    checkpoint52j_pre
1187    
1188    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1189      error messages
1190    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1191    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1192      debug output
1193    o modfied mdsio_writefield.F to handle non-global files under exch2
1194    o update AIM Cubed-Sphere exp (aim.5l_cs):
1195      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1196    o update AIM Equatorial Channel exp:
1197      use standard aim_v23 pkg and change the SST fields to be more realistic.
1198    o globalFile now works with exch2
1199    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1200      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1201    o limit timeave output for hi-res integrations
1202    
1203    checkpoint52i_post
1204    o removed CPP_EEOPTIONS.h from verification/*/code
1205    o updated the tiling for global_ocean_pressure
1206    checkpoint52i_pre
1207    
1208    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1209      the old pkg/aim).
1210    
1211    checkpoint52h_pre
1212    o shortened offending lines in exch2_send_rx?.template
1213    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1214    o genmake2: add build & execute test for NetCDF code
1215    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1216      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1217    o added useSingleCPUIO flag to monitor.F and mon_out.F
1218    o added temporary hack for sea-ice dynamics on the cube:
1219      metric terms are ignored and it is assumed that
1220      there is no sea-ice on cube faces 1, 2, 4, and 5.
1221    
1222    checkpoint52f_post
1223    o added exch2 cube routines to pkg/exch2
1224    o modified hs94.cs-32x32x5 to use it
1225    o added new grid files to hs94.cs-32x32x5
1226    checkpoint52f_pre
1227    
1228    checkpoint52e_post
1229    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1230      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1231    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1232      to work with implicit vertical advection and AB ;
1233    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1234    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1235     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1236    checkpoint52e_pre
1237    
1238    o fix bug in impldiff when Nr=1 or Nr=2.
1239    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1240    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1241    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1242      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1243    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1244    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1245    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1246    
1247    checkpoint52d_post
1248    o re-tiled many expts to allow comparison in multi-processor mode
1249      - updated output accordingly
1250      - changed hs94.128x64x5 to use intial T from file rather than use the
1251        random number generator
1252    o add infrastructure in model routines for fizhi and gridalt packages
1253    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1254    o changes to permit hi-res, cubed-sphere, configuration
1255      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1256      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1257      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1258        of surface winds for the cube
1259      (A verification experiment, based on global_ocean.cs32x15, but with
1260       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1261       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1262       complete with example surface forcing files and matlab scripts to look
1263       at the output and compare it with that of global_ocean.cs32x15.)
1264    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1265       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1266       to conform to the common rule.
1267    o check-in the first version of the coupler + interfaces for multi-components
1268       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1269       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1270       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1271       - ocean and atmos. share the same horizontal grid (no interpolation).
1272       - exchanges between component and coupler is done in forward_step
1273    o new verification experiment, cpl_aim+ocn:
1274       coupled ocean - AIM atmosphere on cs32 grid.
1275    
1276    checkpoint52d_pre
1277    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1278    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1279    
1280    checkpoint52c_post
1281    o Fixing OPTIONS files for use of exf:
1282      - ALLOW_ECCO not needed
1283      - ECCO_CPPOPTIONS.h should not be included from
1284        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1285        as has been the case in the past
1286      - All cal/exf related options are currently set in
1287        single header file. Should remain so until we
1288        agree on a consistent new policy.
1289    o Removed all CPP options for cal package.
1290      cal has no more CPP options.
1291    o modified STOREs in GAD_ADVECTION
1292    o corrected key comp. for passkey
1293    
1294    checkpoint52b_post
1295    o new version: "thsice" of thermodynamic sea-ice pkg:
1296     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1297     - modify fluxes but do not change theta directly;
1298     - light cleaning of bulk_force pkg (still needed with thsice).
1299     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1300       + output_thsice.txt to test thsice & bulk_force pkgs.
1301    o put back grid & coriolis monitor output.
1302    checkpoint52b_pre
1303    
1304    o call "do_the_model_io" at the beginning (=> dump initial state)
1305    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1306    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1307      (need info on NUMBER_OF_PTRACERS)
1308    o missing PTRACERS headers in some routines
1309    o default tamc.h in pkg/autodiff supposed to crash
1310      to ensure proper customization
1311    
1312    checkpoint52a_post
1313    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1314      - moved surfaceTendencyTice from pkg/seaice to main code
1315      - subroutine FREEZE_SURFACE now limits only surface temperature
1316        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1317        => new output.txt for global_ocean.cs32x15 & global_with_exf
1318      - keep the old version of FREEZE for backward compatibility;
1319        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1320      - corresponding modifs for TAF directives
1321    o added surface flux output variables to TIMEAVE_STATVARS
1322    o time-averaged output for pkg/ptracers
1323    o fix problem with ECCO-related divided adjoint
1324      snapshot file was missing some ad-variables,
1325      but no warning issued by TAF
1326    
1327    checkpoint52a_pre
1328    o some bug fixes for #undef REAL4_IS_SLOW
1329    
1330    checkpoint52 = ecco_c52_e35
1331    o after testing adjoints of checkpoint51u_post
1332    
1333    checkpoint51u_post
1334    o this is the post-merge tag of the ecco-branch
1335      (needs another clean checkout and re-testing)
1336    o various natl_box_adjoint configs and results
1337      but no input fields
1338    o obcs adjoint not yet merged!
1339    o adding ECCO global 1x1 and 2x2 degree configs
1340    o updated/extended some store directives for seaice
1341    o pkg/ecco now containes ecco-specific part of cost function
1342    o top level routines the_main_loop, forward_step
1343      supersede those in model/src/
1344      previous input data.cost now in data.ecco
1345      (new namelist ecco_cost_nml)
1346    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1347    
1348    checkpoint51t_post
1349    o this is the pre-merge tag of the ecco-branch
1350    
1351    checkpoint51s_post
1352    o cleanup: removed various obsolete #define-s
1353    o pkg/grdchk
1354      - renamed 'ph-grd 3' to 'grad-res'
1355      - merged from ecco-branch
1356        (remaining bug fixes for obcs gradient checks)
1357      - additional high-precision output for testreport
1358        (grep for 'precision_grdchk_result')
1359    
1360    checkpoint51r_post
1361    o cleaned up or removed CPP_OPTIONS.h files
1362    o updated results for some of the tests to reflect the new
1363      optfiles (-ieee: -O0 instead of -O3)
1364    
1365    checkpoint51q_post
1366    o cd_code:
1367      - moved cd_scheme.F -> cd_code_scheme.F
1368      - separate read_checkpoint from cd_code_ini_vars.F
1369      - separated cd_code part from write_checkpoint
1370      - updated AD_SOURCE, generated .flow
1371      - added CD_CODE_VARS.h to the_main_loop
1372      - Moving cd_code specific store dir.s to pkg/cd_code
1373    o ctrl package totally restructured
1374      - pack/unpack now optional and decoupled from
1375        xx_/adxx_ I/O
1376      - ctrl_pack/unpack cleaned
1377        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1378      - confined inclusion of AD_CONFIG.h to where necessary.
1379    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1380    
1381    checkpoint51p_post
1382    o create initial cd_code package
1383      - WARNING: the initialization of fields within packages
1384        is broken because INI_FIELDS (where READ_CHECKPOINT is
1385        called) is called *before* PACKAGES_INIT_VARIABLES.
1386        This seems to be backwards since
1387        1) its important to initially zero the entire field including
1388           the "halo" region
1389        2) zeroing needs to be done *before* reading pickup info
1390           and the pickup call might or might not happen in any
1391           particular run
1392      - this needs an overhaul for R2
1393    o cleanup verification/*/code/GMREDI_OPTIONS.h
1394    o cleanup testreport
1395    
1396    checkpoint51o_post
1397    o bringing AD-related verif's up to date with genmake2
1398      - carbon/
1399      - global_ocean.90x40x15/
1400      - hs.94.1x64x5/
1401      - (front_relax/ )
1402    o (more) consistent directory structure for AD-related verif.'s
1403    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1404    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1405    o bug fix in find_alpha.F for MDJWF:
1406      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1407        change rho -> rho-rhoConst
1408      - replace call find_rho to find_rhonum
1409    o initialisation of rFlx extended to full array (required by TAF)
1410      and shifted to thermodynamics
1411    o removed PTRACERS.h in ptracers routine
1412    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1413    o Correcting initialisations for fVerU, fVerV.
1414    o helping TAF to recognize dependency on kUp for
1415      fVerU, fVerV
1416    o Replacing delZ by delR in pkg/ctrl/
1417    checkpoint51o_pre
1418    
1419    o undid all of cp51 pending some cleanups and discussion
1420    o added the [#include "AD_CONFIG.h"] statement to all files that need
1421       it for adjoint/tl #defines
1422     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1423     o removed tools/genmake since it no longer works
1424    
1425    checkpoint51n_post
1426    o modifications to make FREEZE flux visible to pkg/kpp
1427      - moved surfaceTendencyTice from pkg/seaice to main code
1428      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1429      - subroutine FREEZE now limits only surface temperature
1430        (this means new output.txt for global_ocean.90x40x15,
1431         global_ocean.cs32x15, and global_with_exf)
1432    o added surface flux output variables to TIMEAVE_STATVARS
1433    
1434    checkpoint51n_pre
1435    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1436    o added [#include "AD_CONFIG.h"] to all files that use the following
1437      defines:
1438      - ALLOW_ADJOINT_RUN
1439      - ALLOW_TANGENTLINEAR_RUN
1440      - ALLOW_ECCO_OPTIMIZATION
1441    
1442    checkpoint51m_post
1443    o incorporating changes to get TAMC/TAF working in genmake2
1444      - added new TAMC/TAF targets to the Makefile
1445      - various cleanups related to package handling
1446      - these changes should have no impact on the forward model
1447    
1448    checkpoint51l_post
1449    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1450     - faster algorithm for cal_addtime.F
1451     - higher precision arithmetic, where needed
1452     - pkg/exf *startdate variables changed from calendar date to
1453       model integration time
1454    
1455    checkpoint51l_pre
1456    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1457    o enable to apply restoring on S & T only in a latitude band.
1458    o update output (external_forcing_surf modif. change truncation errors)
1459       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1460    
1461    checkpoint51k_post
1462    o change default to: useNHMTerms=.FALSE.
1463     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1464       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1465     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1466        exp1, ideal_2D_oce
1467     - change data file of oceanic exp (leave the results unchanged for now)
1468       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1469    o set gravitySign automatically according to the vertical coordinate used
1470      (and change sign: back to "logical" value: +1 when R increases downward)
1471    o added an include barrier to the default CPP_OPTIONS.h and
1472      removed the #include "PACKAGES_CONFIG.h" from it
1473    o fix a bug in mom_fluxform (from chk51j_post)
1474    
1475    checkpoint51j_post
1476    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1477    o adjusted some flow directives (dynamics, thermodynamics)
1478    o added cubed-sphere case to test cost function
1479    o heckpoint_lev?_directives.h now include
1480      pkg-specific directives, whenever those are enabled.
1481    o Moving pkg-specific flow directives to corresponding pkg
1482      Moving pkg-specific differentiation list to corresponding pkg
1483      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1484      ---> conventions are
1485           - pkg_ad.flow
1486           - pkg_ad_diff.list
1487           - pkg_ad_check_lev?_dir.h
1488    
1489    checkpoint51i_post
1490    o merge of the branch-genmake2
1491      - knowingly breaks the older genmake
1492      - automatic generation of all ALLOW_${PKG_NAME} defines
1493      - new testreport supersedes older testscript
1494    o large number of package inclusion and header cleanups
1495    checkpoint51i_pre
1496    
1497    o new output for adjoin of global ocean vector invariant
1498    o fix for checkpoint of thermodynamic seaice and bulk_force
1499    o Steph gchem various cleanups
1500    
1501    checkpoint 51h_pre
1502    o fixed some single quotes
1503    o modify gchem pkg to be more versatile
1504    o modifications to clean up dic pkg
1505    o add pkg/cfc
1506    
1507    checkpoint51g_post
1508    o provide links for ARPACK and ADM*TLM
1509    o start removing verification/vero/
1510    o update AD-related stuff
1511      (in particular some IF-statements in model/src/ routines)
1512    o adding to verification/global_ocean.90x40x15/ adjoint of
1513      vector invariant setup
1514    
1515    checkpoint51f_post
1516    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1517    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1518      of tracer Green's fucntions for ocean inversion project.
1519    
1520    checkpoint51f_pre
1521    o Added on-the-fly spatial interpolation capability
1522        "USE_EXF_INTERPOLATION" to pkg/exf.
1523      - This is a temporary Cartesian-grid hack until
1524        the super-duper ESMF coupler becomes available.
1525      - See verification/global_with_exf/README for usage example.
1526      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1527        flags and modified pkg/seaice accordingly.
1528    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1529        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1530        non-local transport term.
1531    
1532    checkpoint51e_post
1533    o pkg/mom_vecinv:
1534      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1535      - add time-ave diagnostic of vorticity advection.
1536    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1537    o atmospheric geopotential: - include water vapor effect;
1538                                - use p^kappa in p* scaling.
1539    o land pkg: read initial state from files.
1540    o AIM : add stratospheric drag in the upper level
1541    
1542    checkpoint51d_post
1543    o change function ILNBLNK (=> last non-blank char.) to return zero
1544      (instead of the string length) when the string. char is empty
1545    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1546    o modif's to restore TAMC compatibility
1547      - avoid "_d" constructs in PARAMETER declarations
1548      - avoid interrupting lines by comment lines
1549    o Use cluster local disks for purely local I/O
1550      vs. globally visible disks needed for ctrl stuff
1551      (merged from ecco-branch)
1552      - new active_file_loc... and mdsio_..._loc routines
1553      - affected packages: autodiff, ctrl, grdchk, mdsio
1554    
1555    checkpoint51c_post
1556    o introducing integer flag debugLevel
1557      - debLevZero: suppress all output
1558      - debLevA: standard
1559      - debLevB: equivalent to current debugMode=.TRUE.
1560    o introducing pathname variable mdsioLocalDir for mdsio
1561      that can be specified at runtime
1562      (relevant for cluster I/O to local disk)
1563    `
1564    >>>checkpoint51b_post
1565    adjoint of ptracers
1566    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1567    o extended state in checkpoint_lev?, etc.
1568    o alternative ctrl/cost with tr1 or ptracer
1569    o new comlev1_bibj_ptracers
1570    o new ptracers.flow
1571    o made ptracers_forcing same as external_forcing_s
1572    o added verification for adjoint with ptracers
1573      - adm. grdchk fail so far
1574      - tlm. grdchk OK
1575      - checked tapelev/comlev recomputations: OK
1576    <<<checkpoint51b_pre
1577    
1578    checkpoint51a_post
1579    o added code for biogeochemistry package
1580      - new pkgs: dic, gchem
1581      - new subroutine in ptracers
1582    o modify code for biogeo packages
1583      - in model/src and pkg/ptracers
1584    
1585    checkpoint51
1586    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1587      - autodiff, ctrl, exf, grdchk, seaice
1588      kept separate packages
1589      - cost, ecco, obcs
1590    o updating verification/internal_wave, verification/lab_sea
1591      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1592    
1593    checkpoint50i_post
1594    o Preparing next differentiable checkpoint and sync
1595      of MAIN vs. ecco-branch
1596      - 1st step: this one is differentiable
1597      - 2nd step: next(! not this) checkpoint will have updated packages
1598                  from ecco-branch)
1599    
1600    checkpoint50h_post
1601    o new package "land": provide surface BC for AIM.
1602    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1603    o AIM: use true log-P extrapolation for near surface temp (= as in
1604        F.Molteni paper) ; update aim.5l_cs output.
1605    o New variable in PARM03 for more flexible pickups
1606    o somewhat cleaned package initialisation sequence for
1607      ctrl/ cost/ ecco/ in packages_... routines
1608    
1609    checkpoint50g_post
1610    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1611      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1612      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1613        made the default because of faster convergence than ADI
1614    
1615    checkpoint50f_post
1616    o exf totally restructured
1617      - replaced all exf_set_ routines by one generic exf_set_gen.F
1618        and made sure it's still differentiable
1619      - split exf_getffields.F into new exf_bulkformulae.F
1620      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1621      - updated adjoint/makefile and relevant verif. accordingly
1622    
1623    checkpoint50f_pre
1624     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1625          + change Evap over land. (update aim.5l_cs output)
1626     o added missing .cvsignores and made uniform across expts
1627     o changed configuration of tidal_basin_2d expt
1628     o added pkg/debug functions for tracing code in fatal crashes
1629     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1630     o new fn in pkg/monitor to stop model if solution grows too big
1631     o removed lots of single quotes from comments
1632    
1633    checkpoint50e_post
1634    o make KPP work with PTRACERS
1635     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1636       nearly a copy of kpp_transport_s
1637     - there is no analogue to SurfaceTendencyS, so I have to use
1638       gPtr(of the surface layer) instead
1639    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1640    checkpoint50e_pre
1641    
1642    checkpoint50d_post
1643    o change kpp output from multiple-record state files to single-record state
1644      files analogous to write_state.F
1645    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1646      analogous to the cg2d-related output.
1647    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1648      so that writing to internal file fn (with length 512) fails.
1649    checkpoint50d_pre
1650    
1651    checkpoint50c_post
1652    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1653    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1654    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1655    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1656    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1657    
1658    checkpoint50c_pre
1659    Merging from release1_p13:
1660    o bug fix for pkg/seaice dynamic solver
1661    o Added SEAICE_initialHEFF to pkg/seaice
1662    
1663    checkpoint50b_post
1664    o store u*,v* in gU,V instead of in guNm1,gvNm1
1665    o in order to put the momForcing out of the Adams-Bashforth:
1666      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1667      to timestep.F
1668    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1669    o re-generate output for highly sensitive test-exp:
1670       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1671    
1672    checkpoint50b_pre
1673    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1674    o corrected CPP option mismatch in exf_Bulk... functions for case
1675      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1676    
1677    checkpoint50a_post
1678    o Bug fix for merging between c50 and KPP.
1679      ikey was passed from thermodynamics to kpp_calc via
1680      common block rather than being recomputed in kpp_calc,
1681      in contradiction with new key itdkey.
1682      New key ikppkey created, and tamc.h headers updated.
1683    
1684    checkpoint50
1685    - 2nd step of merge with ecco-branch:
1686      merge changes in ecco-branch back into main trunk
1687    - bug fix in find_alpha
1688    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1689    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1690    - merged some sliced AD support routines
1691    
1692    checkpoint49
1693    merged from ecco-branch:
1694    o exf:
1695      - Enable initialisation of forcing fields to constant
1696        (runtime) values.
1697      - in exf_getffields.F
1698        Reduce i-/j-loop to interior domain, discarding overlaps.
1699        That also fixes wrong TAF-key computations for key_1, key_2
1700        with bulf formulae.
1701      - exf_init.F modify #ifdef for exf_init_evap
1702      - exf_getffieldrec.F, ctrl_getrec.F
1703        The following INT-usages are not safe:
1704          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1705          fldcount = int(fldsecs/fldperiod) + 1
1706        and were modified.
1707    o autodiff: checkpoint_lev...
1708      - updated storing for bulk formulae (some arrays were missing)
1709      - added state for seaice package
1710      - synchronized with main branch
1711    o DIVA:
1712      Modif.s in
1713      - the_main_loop.F
1714      - the_model_main.F
1715      and added cost_final_restore.F cost_final_store.F
1716      o With these changes, it is possible to fully separate
1717        the first forward run to compute the cost function (mdthe_main_loop)
1718        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1719        into separate model executions.
1720        This enables better tuning of DIVA to given queue sizes.
1721      o Loss of cost function value in consecutive DIVA runs is
1722        fixed by storing to 'costfinal' file.
1723      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1724        beginning/end of adjoint integration is accounted for.
1725      The current changes apply to TAF-1.4.26.
1726      TAF has one remaining bug, requiring one manual change
1727      (see MITgcm manual).
1728    o cal: synchronized between MAIN and ecco-branch
1729    
1730    checkpoint48i_post
1731    o Changes to restore differentiability of code w.r.t. previous tag
1732      (mostly adding new routines to make list and replacing
1733      pressure by totPhiHyd).
1734    o Updated and merged grdchk package
1735      - has both ADM and TLM checks
1736      - works for single- and multi-proc.
1737      - output cleaned
1738      - worked successfully for parallel DIVA
1739    o genmake:
1740      - Adding -platform=SP4
1741      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1742    o Modif. for DIVA:
1743      ctrl_unpack should not be called in intermediate DIVA interval.
1744      (similar thing would apply for active files such as
1745      tbar, sbar, psbar, which should not be reinitialised;
1746      only relevant for ecco-branch)
1747    
1748    checkpoint48h_post
1749    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1750    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1751    o Added SEAICE_initialHEFF to pkg/seaice
1752    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1753    
1754    checkpoint48g_post
1755    --- EOS:
1756    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1757      store total Potential in totPhyHyd for diagnostics & EOS.
1758    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1759    --- Pressure/geopotential gradient:
1760    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1761    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1762      ( changes results of global_ocean_pressure )
1763    o NLFS + z-coord.: add eta*Rho' contribution.
1764    o accurate phiHyd when using interface-W at the middle between 2 centers
1765     ( changes results of ideal_2D_oce )
1766    o includes r* 2nd term in potential gradient.
1767    
1768    checkpoint48f_post
1769    Merging from release1_p12:
1770    o Modifications for using pkg/exf with pkg/seaice
1771      - improved description of the various forcing configurations
1772      - added basic radiation bulk formulae to pkg/exf
1773      - units/sign fix for evap computation in exf_getffields.F
1774      - updated verification/global_with_exf/results/output.txt
1775    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1776      (SBO) core products, including oceanic mass, center-of-mass,
1777      angular, and bottom pressure (see pkg/sbo/README.sbo).
1778    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1779      to avoid negative values in shallow regions.
1780      - updated verification/natl_box/results/output.txt
1781      - updated verification/lab_sea/results/output.txt
1782    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1783    o Added useSingleCpuIO option (see PARAMS.h).
1784    o Updated useSingleCpuIO option in mdsio_writefield.F to
1785      work with multi-field files, e.g., for single-file pickup.
1786    o pkg/seaice:
1787      - bug fix in growth.F: QNET for no shortwave case
1788      - added HeffFile for specifying initial sea-ice thickness
1789      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1790    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1791      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1792    o pkg/seaice:
1793      - adjoint-friendly modifications
1794      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1795    
1796    checkpoint48e_post
1797    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1798    o dynamics: change definition of computational domain & adapt mom_fluxform
1799      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1800    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1801        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1802        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1803        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1804        inverted_barometer solid-body.cs-32x32x1
1805      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1806    
1807    checkpoint48d_post
1808    o in preparation for r*:
1809     a) use pre-computed gradient of hydrostatic potential:
1810        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1811     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1812        => affects results of glob_oce_pressure (different truncation error)  
1813      update output.txt of ideal_2D_oce & global_ocean_pressure
1814    
1815    checkpoint48d_pre
1816    o in preparation for r*:
1817      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1818      pass the 2 comp. of the grad. as arguments to momentum S/R.
1819      but for the moment, only used if it does not change the results.
1820    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1821    
1822    checkpoint48c_post
1823    Modifications in treatment of initial flux forcing controls
1824    to avoid extra storing of flux fields.
1825    
1826    checkpoint48c_pre
1827  o Added tidal_basin_2d experiment (currently 1D!)  o Added tidal_basin_2d experiment (currently 1D!)
1828  o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)  o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1829    

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