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revision 1.76 by jmc, Fri Jul 12 14:52:08 2002 UTC revision 1.609 by mlosch, Mon Feb 13 13:11:31 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o shelfice:
8      - separate shelfice load anomaly from pload (breaks with time
9        dependent forcing), => introduce constant field shelficeLoadAnomaly.
10        Its default is 0., but it may be computed more cleverly from (unknown)
11        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
12        done offline. A good approximation of the pressure load anomaly is
13        necessary to avoid large initial adjustment processes underneath
14        deep-reaching shelfice.
15      - small fix in ISOMIP shelfice_thermodynamics
16      - add more sophisticated thermodynamics of Hellmer (1989), this is
17        now the default
18      - give a few constants more intuitive names
19    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
20      if bulk formulae are used in long integration (especially EmPmR). Turn
21      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
22      if balancePrintMean, the imbalance that is substracted is printed to
23      STDOUT.
24    o fix bug (typo) in obcs_apply_eta.F
25    o add a new package shelfice which enables us to model the circulation
26      underneath shelf-ice with draughts of hundreds of meters.
27     - works
28     - to do: + include improved thermodynamics
29              + check whether kSurfC (from model/inc/SURFACE.h) can be used
30                instead of new field kTopC
31              + can we use topoFile, Ro_surf and existing code in ini_depth.F
32                instead of new field R_shelfIce and new code in ini_depth.F
33                and ini_mask_etc.F?
34              + adjust vertical mixing schemes?
35    o seaice pkg:
36     - add a cpp-flag to include a simple formula for a salinity dependent
37       freezing point of sea water at the surface
38     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
39       meridional stresses are now different (and hopefully correct)
40    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
41       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
42       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
43    o pkg/diagnostics: add options and parameters for regional-statistics
44       diagnostics ; define regions by reading a region-mask from a file
45       (might add other options later)
46    o pkg/bulk_force:
47     - add option and parameters to use AIM surface-flux formulae.
48     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
49       others forcing fields (defined in PARM05, parameter file "data") are loaded
50       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
51     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
52     - use the right EXCH call for uwind,vwind (to work on CS-grid).
53     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
54       and parameters (note: calcWindStress replaces .NOT.readwindstress).
55     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
56    
57    checkpoint58
58    o add "--embed-source" option to genmake2 which, when the supporting
59      tools can be compiled (as determined by genmake2) will turn on the
60      embed_files package which then embeds the entire MITgcm source code
61      (*.[fFhc] + Makefile) used for the build within the executable
62      - requested by CNH but off by default
63      - adds a paltry <9MB to the mitgcmuv executable in most cases
64      - only writes the output when useEMBEDSRC in eedata is true
65    o clean up 3-dim. relaxation codes:
66      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
67      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
68      * Thanks to Tom Haine for testing!
69    
70    checkpoint57z_post
71    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
72      affects output (@ truncation level) of exp. plume_on_slope ; updated.
73    o fix the pickup behavior for obcs in combination with ptracers
74    o fix a bug in ptracers_external_fields_load
75    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
76      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
77    o transfered surface NH pressure to eta field (if exactConserv).
78    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
79         and update lab_sea output.txt file.
80    o completing 3-dim. relaxation code: additional term
81         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
82      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
83      * At compile time, in "EXF_OPTIONS.h" set
84          #define  ALLOW_CLIMTEMP_RELAXATION
85          #define  ALLOW_CLIMSALT_RELAXATION
86      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
87          tauThetaClimRelax3Dim = 15552000.0,
88          tauSaltClimRelax3Dim  = 15552000.0,
89      * 3 cases:
90          1) Use a constant-in-time 3-dim. field
91          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
92          3) Real-time relax. to time-evolving prescribed field
93    o Adding Laplacian-type smoothness constraint on
94      initial and boundary (forcing) controls (ic, bc)
95      * enable at compile-time via
96        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
97      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
98      * Absolute scale somewhat unclear so far
99      * no area weighting was included since no other cost term does so far
100    
101    checkpoint57y_post
102    First step for a NLFS adjoint
103    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
104    o new init. routines for calc_r_star, calc_surf_dr
105    o still need to deal with ini_masks_etc
106    o testreport seemed happy
107    checkpoint57y_pre
108    
109    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
110    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
111    o add new offset feature to offline pkg (plus minor cleanup)
112    o cfc fixes for final year of integration
113    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
114      be in GCHEM_OPTIONS).
115    
116    checkpoint57x_post
117    o fix testreport Pb in multiple test experiment.
118    o cleanup our namelist syntax in verification:
119      - make it more F95 standards compliant (some work still needed)
120      - allows the vast majority of our tests to work with gfortran
121    o Non-Hydrostatic:
122     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
123     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
124    o Allow to apply AB on T,S rather than on AB(gT,gS):
125     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
126     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
127       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
128     - need a "clever" read_pickup to restart from the other AB formulation
129    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
130    o remove some unused variables (reduces number of compiler warnings)
131    o adjoint
132      * Disable useVariableViscosity for adjoint for time being
133        (there are a number of extensive recomputations)
134      * Initialize certain variables needed for adjoint
135    
136    checkpoint57w_post
137    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
138                 fix the singleCpuIO RS version of MDSWRITEFIELD
139       and add a WARNING if using globalFiles=T with multi-processors.
140    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
141      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
142    o tracer advection scheme:
143      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
144       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
145       was not very convenient).
146      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
147       (further tests needed for the implicit DST & Flux-Limiter schemes).
148    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
149      and sRef for convenience, handy, when you want to initialize
150      ptracers in a large domain with a constant non-zero value. Also,
151      untangle ptracers_init.F a little.
152    
153    checkpoint57v_post
154    o change dome exp. to use variable viscosity in side-drag terms.
155    o remove all the files from the cfc_offline test since they are now
156      incorporated into tutorial_cfc_offline which has been producing
157      identical results for a few days of testing
158    o add new parameter: sideDragFactor to enable half-slip-side BC
159      and change side-drag S/R to use viscosity from mom_calc_visc
160      (can switch back by setting sideDragFactor=0.); affects results at
161      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
162       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
163    o vorticity & strain are now computed without masking, to account for
164      no-slip-side BC in variable viscosity calculation ; mask is applied
165      anyway later on, before computing advection/coriolis terms.
166    o modify exp4 to test new obcs support for reading from external files
167      and for passive tracers
168    o fix behavior of ptracers_monitor when monitor output is written to a
169      netcdf-file; still not independent of monitor.F (writes in the same
170      file).
171    o change default value of tRef (put a uniform, meaningful value for ocean
172      & atmos) and initialize sRef (was missing, as Martin mentioned).
173    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
174      to be proportional to enstrophy dissipation length.  Thus,
175       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
176      This is now consistent with Smagorinsky and with the manual.
177    
178    checkpoint57u_post
179    o OBCS and PTRACERS: add open boundary support for passive tracers
180      - either use homogenous (pseudo) v.Neumann conditions or prescribe
181        OB-values from file; this is not different from the way theta and salinity
182        are treated
183      - however, Orlanski-radiation conditions are not supported, and the model
184        will stop if you use pTracers and Orlanski at the same time.
185      - beefed up the rountine obcs_external_fields_load: now only those open
186        boundary values are overwritten with values from files for which there
187        are really files, otherwise the OB-fields remain untouched. This makes
188        it possible to use different OBs at different ends of the domain (as
189        with EXF)
190    o reduce number of exch calls in shap_filt (s2).
191    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
192      truncation level) 4/5 MLAdjust test results (11&12 digits match).
193    
194    checkpoint57t_post
195    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
196    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
197      same truncation, independent of the face number: affects affects several
198      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
199    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
200      note that biharmonic viscosity + no-slip was not tested in any experiment.
201    o fix bug in non-linear free-surf side-drag ; generate new output for
202      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
203    o make mnc honor the writeBinaryPrec flag for most kinds of output
204    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
205    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
206      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
207    o add brackets in multi-terms sum to get same truncation, independent of
208      the face number (manage to get exactly same value of gU,gV at the cs-edge)
209      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
210    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
211      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
212      a maximum grid-scale Reynolds number.  Also, changes all length calculations
213      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
214      Suggested values of viscosity parameters found in mom_calc_visc.
215      Many new viscosity diagnostics available.
216    
217    checkpoint57s_post
218    o Add clearing-house for viscosity calculations, mom_calc_visc and
219      correct numerous bugs in LeithD and Smagorinsky discretizations.  
220      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
221      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
222      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
223      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
224      The Strain-Tension form is now called with useStrainTensonVisc=.true.
225      ViscAhStrain and viscAhTension are now retired.
226    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
227    o In response to JMC's bug report, genmake2 now ignores any soft-links
228      that it finds in the *current* directory when searching for files.
229      Soft-links found in any other source directories will still work as
230      they did before.
231    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
232      a C routine to unlimit the stack size
233    o mnc-ify pkg/aim snapshot vars
234    o mnc-ify pkg/land as requested by Daniel
235    o various changes to mnc including:
236      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
237      - output can now be grouped so that all files within a group
238          change the ITER portion of their names in lock-step together
239      - can now read ("global") PER-FACE (in addition to PER-TILE) files
240          and works with both EXCH1 and EXCH2 (but needs more testing)
241      - writing works for all verification test cases w/ g77 on Linux
242    
243    checkpoint57r_post
244    o make MNC variable initialization happen earlier
245    o add diagnostics for (almost) each term of the momentum Eq.
246    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
247    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
248    o remove MINIMAL_TAVE_OUTPUT option ;
249      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
250    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
251      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
252    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
253    o add time-dependent SST, SSS control
254    o cost terms in ecco/ modularized (new cost_generic.F)
255    o cost_averages routines are modularized (new cost_averagesgeneric.F)
256    o new infrastructure for seaice model vs. obs misfits in seaice/
257      * driver from the_main_loop.F is seaice_cost_driver.F
258      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
259      * gradient check in Exp. 6a of natl_box_adjoint/
260    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
261      (see README file)
262    
263    checkpoint57q_post
264    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
265    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
266      - bug was reported by Jean-Michel and Ian Fenty
267    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
268      update exp. cpl_aim+ocn output.
269    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
270      Needed for high-res. runs with large global files
271      to be able to limit tapelev size
272    o Changed some tests for adjoint:
273      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
274      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
275      * global_ocean.90x40x15/ back to default 3-level checkpointing
276    o Modifications to enable scripted COMMON to MODULE conversion
277      * verification/OpenAD/code/ has necessary scripts and description;
278      * converts, compiles and runs successfully;
279    
280    checkpoint57p_post
281    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
282    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
283      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
284    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
285    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
286      (was already the case for dissipation with mom_vecinv,
287       and also the case for grad.PhiHyd when staggered-timeStep)
288      This will allow to put dissipation out-off the AB time-stepping.
289     Unfortunately, affects truncation error. Update output of exp. that "fails"
290      (cg2d matching number) and leave the others for later: front_relax(10),
291      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
292      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
293    
294    checkpoint57o_post
295    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
296      (2) its ready to be documented during the 20050801 DocFest
297    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
298      for ideal_2D_oce and lab_sea on linux_ia32_g77
299    o set to #undef CTRL_SET_OLD_MAXCVARS_30
300      in global1x1_tot/code_seaice_adj to access indices 32, 33
301      (worth another tag)
302    
303    checkpoint57n_post
304    o adding precip control xx_precip 32
305    o adding swflux control xx_swflux 33
306    o Replacing 10 forcing penalty cost routines by 1 generic.
307    o Implementing partitioning in time-mean and variable adjustment
308      for atmos. state.
309    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
310    o in natl_box_adjoint:
311      * updated exp 1 to 10
312        (but does not have time-mean vs. variable split results yet)
313    o updated global1x1/*_seaice_adj/
314      to incorporate latest changes
315    o enable useSingleCpuIO for mdsio vector routines
316      (applies in particular to tapelev I/O)
317    o removed inefficient K-loop in all active_file*control*.F
318    
319    checkpoint57m_post
320    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
321      and advect_cs (use EXCH-2 and standard cs-32 grid files).
322    o pkg/exch2: filling of face-corner halo regions is optional
323      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
324    
325    checkpoint57l_post
326     tag before updating tutorials (pre-release-2)
327    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
328       for output and interpolation of input fields onto model grid)
329    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
330       Affects results of exp. rotating_tank ; update output.txt.
331    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
332          and taking the square quantity and/or using a fraction-weight field.
333    o fix aim_diagnostics_init.F mate numbers.
334    o add mnc output capability to diagnostics/diagstat and update
335      our cvsignore files for the ACSII output generated
336    
337    checkpoint57k_post
338    o lab_sea now uses diagnostics package and provides a suite of
339      new EXF diagnostics output.
340    
341    checkpoint57j_post
342    o exf
343      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
344        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
345        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
346      * extended diagnostics output
347        - now includes all EXF variables
348        - hs, hl moved to common block
349        - separate S/R for diagnostics, called after ctrl vector is added
350        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
351        - EXFqnet contains true Qnet (i.e. includes qsw)
352      * updated verif. lab_sea, global_with_exf
353      * Rearranging hflux (exf_mapfields -> exf_getforcing)
354        to ensure that diagnostics sees a true EXFqnet
355    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
356    o diagnostics pkg: change pointers so that 1 diagnostic can be used
357      several times with different frequencies.
358    o mnc-ify the thsice package as requested by Daniel Enderton
359      - the monitor--MNC output needs work
360      - many attributes need to be added (most are currently blank)
361    o mnc-ify theaim_v23 package as requested by Daniel Enderton
362      - many attributes need to be added (most are currently blank)
363    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
364    o add Sadourny like discretization to the 4th.O vorticity advection scheme
365    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
366      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
367         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
368    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
369     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
370    
371    checkpoint57i_post
372    o Diagnostics package was changed: diagnostic allocation is now deactivated
373      by setting an empty file name in the namelist (used to be by setting 0 frequency)
374    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
375      add 1rst Order upwind vertical Shear.
376    o add a quick fix for A/B checkpointing in OFFLINE mode
377    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
378      end-run around the C/Fortran linking horror in eesup/src/timers.F
379    o added pkg/runclock: allows user to terminate run based on wall clock
380    o added non-hydrostatic scaling parameter: nh_am2
381    o pkg/my82: futile attempt to make results compiler-independent by adding
382      some "_d 0", etc. no effect.
383    o for mnc output, fill the 'T' coordinate var with myTime and create a
384      separate 'iter' variable for iteration count
385    o pkg/diagnostics:
386      add new capability: output of Global/Regional & per-level statistics ;
387      tested against monitor output (including land & thSIce) on various exp.
388    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
389    
390    checkpoint57h_done
391      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
392      data.diagnostics, data.gchem, data.ptracers) is done.
393    
394    o pkg/diagnostics: prepare for Global/Regional statistics.
395      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
396    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
397      and rename it: DIFFERENT_MULTIPLE
398    
399    checkpoint57h_post
400    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
401    o pkg/diagnostics: change output frequency, now in seconds (instead
402      of Nb of iterations). This requires to change data.diagnostics.
403    checkpoint57h_pre
404    
405    o in mnc, let the user create the output dir if both mnc_outdir_date
406      and mnc_outdir_num are false
407    o add fflags() to pkg/diagnostics which allows one to specify, on a
408      per-file basis, the file precision [default behavior is unchanged]
409    o added diagnostics to pkg/kpp, including computation of mixed layer
410      depth based on a temperature/density criterion
411    o updated verification/natl_box to test the new pkg/kpp diagnostics
412    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
413    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
414    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
415      not mnc -- this mistake was found by JMC and is now corrected
416    
417    checkpoint57g_post
418    o add Adams-Bashforth 3rd Order time stepping:
419      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
420      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
421    checkpoint57g_pre
422    
423    o make lambda[Theta,Salt]ClimRelax spatially varying
424      (default remains spatially uniform constant based on tau)
425    o added new control variables
426      * init. uVel, vVel, etanN
427      * lambda[Theta,Salt]ClimRelax
428    o separate masks used for ctrl_pack/unpack 'from write_grid' output
429      (suggested by G. Forget)
430    
431    checkpoint57f_post
432    o add parameter "baseTime" = model base time = time at iteration zero
433      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
434      account for baseTime shift
435    o move Coriolis arrays from PARAMS.h to GRID.h
436    checkpoint57f_pre
437    
438    o mnc-ifying the seaice package
439    o introduced an alternative length scale calculation for use in the limiting
440      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
441    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
442    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
443      as well as grad(vort3).  Made it compatible with both approximate form
444      for the cubed sphere and full form of these gradients.  Added flag
445      useFullLeith to select between approximate and full form.  
446    o add "d0" in getcon.F to reduce differences between compilers/platforms
447      update output.txt of exp. fizhi-gridalt-hs
448    o change port_rand funtion to allow to set the seed.
449    o fix obscure MNC bug involving conversion between reals and integers
450      - it caused no problems with certain (eg. gcc, ifc) compilers but the
451        new version is now more standards-compliant
452    o adjoint-related modifications
453      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
454      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
455      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
456    
457    checkpoint57e_post
458    o Adding eddy stress controls a la Ferreira et al.
459    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
460    
461    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
462      update output.txt of exp. fizhi-gridalt-hs
463    o add more "Z" dimensions and associated coordinate vars to MNC
464    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
465    o parameter calendarDumps: when set, approximate months (30-31 days) and years
466      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
467      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
468      months and years.  Requires pkg/cal.
469    o diagnostics: add pickup functionality
470      - off by default for backwards compatibility
471      - current version only uses MDSIO -- MNC will be added
472    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
473    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
474    
475    checkpoint57d_post
476    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
477    o modify verification/ideal_2D_oce so that it tests the creation of mnc
478      output from the diagnostics package
479    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
480    o make genmake2 more portable by using ".$FS" instead of ".f" for more
481      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
482    o add coordinate variables to the MNC output from the diagnostics package
483    o change MNC-flags default value: true when useMNC=TRUE
484    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
485      the ability (off by default) to read the grid information using MNC
486    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
487    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
488    o do snap-shot diagnostics at the middle of the time-interval (instead of
489      at the end).
490    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
491      new test for AIM with thSIce + slab-ocean
492    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
493    o move state variable diagnostics to the beginning of the time step ;
494      (note: still needs some work specially for snap-shot diagnostics)
495      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
496    
497    checkpoint57c_post
498    o Change testing option (-ieee) to get closer agreement between g77 & ifort
499    o generate new output.txt files on faulks with g77 & the new -ieee option
500    checkpoint57c_pre
501    
502    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
503      update output.txt of exp. global_ocean.90x40x15
504    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
505      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
506    o add saltFlux(+File) forcing capability with periodicExternalForcing
507    o allow to use pkg diagnostics for GM-Redi & ThSIce output
508    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
509    o improvements for the MNC output from DIAGNOSTICS:
510      - correct handling of the unlimitied dimension
511      - all dims now have associated coordinate variables
512      - variables located at U, V, and Corner ("Z") points are now written
513        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
514        *all* data points are output
515    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
516    o added pkg/seaice/seaice_monitor.F
517    o mdsio_readfield.F can now read files visible only to master MPI process.
518    o pkg/seaice: some test code for ice-modified ocean stress
519    o exf_getffields interpolation defaults to bilinear for all scalar forcing
520      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
521      spurious negative numbers for precipitation and humidity.  Will cause
522      some small numerical differences for integrations using pkg/exf/exf_interp.F.
523    o pkg/ctrl/
524      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
525        May be enabled via doPackDiag
526      *  introduce z-scaling of
527         + gradient (doZscalePack) and
528         + control (doZscaleUnpack)
529    o pkg/mdsio/
530      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
531      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
532    
533    checkpoint57b_post
534    o simplify options in diagnostics_fill arguments (remove weird combinations)
535    o fix MNC coordinate variables so that they now contain per-face index
536      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
537      general, EXCH2 grids are only aligned to a "local" coordinate system
538    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
539    o Implement instantaneous output within pkg diagnostics:
540      setting a negative frequency in data.diagnostics produces
541     "snap-shot" output (as opposed to time-average if freq > 0)
542    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
543      NOTE: change ptracer diagnostics name: use 2 characters to work with
544            more than 9 tracers. Add also diagnostics of advect & diffus flux.
545    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
546      becomes the coordinate variable for the 'T' dimension
547    o add CF-style coordinate variables to MNC
548      - just a first cut:  numbers are meaningless on the cubesphere and
549        missing along the T axis but otherwise it works!
550    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
551    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
552    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
553      this is based directly on what the model compute, so that the content of
554      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
555    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
556    o clean up build options files for SunOS, in particular
557      - remove -traditional from xmakedepend
558      - change -xarch=v9 to -xarch=native for f77
559      - restore use of make (not gmake)
560      - add CC=gcc if using g77
561    o changes per discussion of AM, JMC, & EH3 today:
562      - move redundant "grid" variables out of "state" -- in preparation of
563        creating proper CF-style coordinate variables and in recognition
564        that any/all grid variables can be easily copied (eg. w/NCO) from
565        the grid files into any of the other NetCDF files
566      - *always* output grid variables with MDSIO (this will eventually be
567        changed)
568      - output MNC grid file if useMNC is true
569    o every instance of _END_MASTER() has been found and replaced with
570      _END_MASTER( myThid ) in order to satisfy certain picky Sun
571      preprocessors
572    o re-arrange diagnostics pkg initialisation:
573     - allow each package to extend the available diagnostics list
574     - add some checking and fix small problems (multi-threaded, ...)
575     - new S/R diagnostics_fill (replace fill_diagnostics):
576       look through the short list of active diag. (instead of the long list)
577       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
578    
579    checkpoint57a_post
580    o this set of changes restores TAMC compatibility
581      tested for global_ocean.90x40x15 adjoint on trough
582      (what a pain)
583    
584    checkpoint57a_pre
585    o some modifs in tools/build_options for sunos
586    o call ctrl_pack for ctrl at end for optimcycle=0
587    
588    checkpoint57
589    o add horizontal bi-harmonic viscosity for vertical velocity
590      - new parameter viscA4W (defaults to viscA4)
591      - affects only non-hydrostatic code
592      - to be done: no-slip lateral boundary conditions
593    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
594    o implement Implicit Vertical advection for pTracers
595    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
596      (implemented also for implicit vertical diffusion & advection)
597    o OBCS: extend application of tracer open boundary conditions
598      to a strip beyond the boundary of width Olx/Oly
599    o add call monitor to TAF set of required calls (flow directives)
600      and include in natl_box_adjoint
601    o untangle a few ifdefs related to cost, ctrl, autodiff
602      untangel a few ALLOW_ECCO_OPTIMIZATION
603    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
604      (theta2, salt2 in ecco_cost_weights)
605    
606    checkpoint56c_post
607    o OBCS as control variables
608      - update ctrl_ad_diff.list, obcs_ad_diff.list
609      - remove balance of obcs controls from default
610      - fix index bug nobcs in ctrl_init
611      - fix dummy fields filen in ctrl_pack
612      - add dummy weights for obcs
613    o lsopt: comment out fort.94 output
614    o optim:
615      - remove unnecessary header files
616      - adjusted namelists
617      - add xerbla.F to Makefile
618    o exf:
619      - multiple modifications of exf_check_range
620      - unit change in exf_init_runoff from [m/year] to [m/s]
621    o mdsio:
622      - i/o-vector change debugLevel from debLevA to debLevB
623    
624    checkpoint56b_post
625    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
626      is called from DO_THE_MODEL_IO
627      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
628      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
629      - clean up PTRACERS_WRITE_TIMEAVE a little
630    o add another verification experiment that tests both the cfc-pkg and
631      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
632      reactive tendencies treated inline with regular timestepping
633    o testreport previously did a lousy job of comparing small numbers, so
634      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
635      implemented in the little c-progam tmp_cmpnum.c which is embedded in
636      testreport.
637    o ptracers_monitor: bug fix for MPI
638    
639    checkpoint56a_post
640    o GCHEM: finish reorganizating the package
641      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
642        (introduces another 3D-array for each passive tracer, but only if
643        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
644        gchemTendency is not needed because the timestep is done separately)
645      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
646      - GCHEM is now---more or less cleanly---separate from PTRACERS
647      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
648        so clear to me how that should be done in a general way.
649    o CFC: improve formatting of output in CFC_ATMOS
650    o PTRACERS:
651      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
652        that ALL experiments with ptracers enable can be checked. This makes
653        GCHEM_MONITOR obsolete.
654      - include a runtime parameter PTRACERS_monitorFreq that defaults to
655        monitorFreq
656      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
657    o add PTRACERS (PTR0[1-5]) to testreport output
658    o exf_check_range:
659      * default changed to .TRUE.
660      * will check values for niter0 if debLevA, every timestep if debLevB
661      * STOP in exf_check_range if 'out of range'
662      * range chosen generous to allow for potential extema
663      TBD: a version with stricter range
664           permitted range would be runtime parameters
665    o GMredi:
666      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
667      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
668      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
669    o GCHEM:
670      - move call to GCHEM_FORCING_SEP, so that it is now called before
671        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
672      - introduced a useGCHEM runtime flag and applied it everywhere.
673      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
674        this flag is now only visible within GCHEM-pkg routines.
675      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
676        be replaced by a 3D array that is computed before thermodynamics; for
677        this, the tracer ID iTracer had to be included into the parameter list
678        of ptracers_forcing
679      - set up forward_step to call gchem_forcing, that will replace
680        gchem_forcing_int in ptracers_forcing
681      - cleaning up
682    o small cleaning of exch2: remove files that are also in eesupp/src
683    
684    checkpoint56
685    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
686    o mnc: cleanup "full" files--fixes out-of-memory problem
687    o ECCO-GODAE
688      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
689      * fully merged and updated from SIO code
690        windstress sign change affects
691        - exf_inscal_[u/v]stress
692        - sign of xx_tau[u/v] adjustments
693        - signs in cost_scat
694      * ctrl_get_gen: avoid update of tau[u/v] for first few days
695      * natl_box_adjoint updated and compressed
696      * 2-level checkpoint switch added
697        (tested in EXP. 1 of natl_box_adjoint)
698      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
699    o SVD
700      * first complete, non-hacked version for SVD calculations
701      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
702        performed via direct access files admtlm_vector.it????
703        (via ctrl_[un]pack)
704      * optimcycle is used for ARPACK iteration counter
705        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
706      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
707        and add linear transforms where necessary
708      * controls are initial/final SST, SSS (can be extended; need to check
709        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
710    o mdsio: filename info to both stderr, stdout
711    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
712      from sign change
713    
714    checkpoint55j_post
715    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
716      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
717    o add consistent build directories and .cvsignore files to verification
718    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
719    o make all subroutines 30 or less characters in length for certain older
720      compilers to work (a thorough search only turns up two routines in
721      pkg/ptracers)
722    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
723      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
724    
725    checkpoint55i_post
726    o change arrays for total vertical diffusivity (2.D if explicit,
727      3.D if implicit) ; each ptracer uses its own background value.
728    o added mnc/NetCDF output capability to ocn_compon_interf
729      - added bits to verification/cpl_aim+ocn so that it can run on
730        ITRDA and other clusters without the mpirun "-wd" option
731    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
732      configuration
733    o give MNC the ability to create additional files rather than
734      exceeding a specified file size limit "MNC_MAX_FILESIZE"
735      - the default is just less than 2GB which is a practical limit
736        on many systems
737    o Compute the non-local term using either KPP vertical diffusivity (=default)
738       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
739    
740    checkpoint55h_post
741    o add verification test "vermix"
742    o remove all the *_ioinc flags and replace with the single global
743      outputTypesInclusive flag
744    o allow to set a vertical profile of vertical diffusivity for T & S
745    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
746    o useMNC moved from data.mnc to data.pkg
747    
748    checkpoint55g_post
749    o Renaming carbon AD experiments to comply with testreport conventions
750    o Updating adjoint of Held-Suarez hs94.1x64x5
751    o Fixing directives for non-ECCO forward_step, after ECCO directives
752      have been fixed to avoid recomp. of do_oceanic_phys
753      Works well for global_ocean.90x40x15,
754      but recomp. issue remains for carbon
755    o Updating adjoint output for natl_box_adjoint after
756      pkg/ecco has been modified (see taga c55d_post)
757    
758    checkpoint55f_post
759    o rename to timeave_init_fixed
760    
761    checkpoint55e_post
762    o some delicate re-shuffle of store directives to avoid one
763      extra call of do_oceanic_physics
764      affects ecco_the_main_loop.F, do_oceanic_physics.F
765      checkpoint_lev1_directives.h
766    o NB: this may break global_ocean adjoint temporarily,
767      but it is clear how to fix it. Will do later, need this now.
768    
769    checkpoint55d_post
770    o ECCO specific cost function terms (up-to-date with 1x1 runs)
771    o ecco_cost_weights is modified to 1x1 runs
772    o modifs to allow observations to be read in as
773      single file or yearly files
774    o enable to read exf forcing fields as either
775      single file or yearly files (flag useExfYearlyFields)
776    checkpoint55d_pre
777    
778    o switch between 2-level and 3-level checkpointing
779    o add ability of MNC to write local and "partial" (eg. 2D slices where
780      the full 3D field is never actually stored) arrays to NetCDF files
781      with the correct (that is, the complete multi-dimensional) set of
782      array indicies
783      - used in mom_vecinv() to write the diagFreq output
784      - tested (demonstrated) in verification/aim.5l_cs
785    o further mnc-ification
786      - add verification/lab_sea to the list with mnc setups
787      - fix undefined mnc v-names in cd_code
788      - add kpp to mnc output (both snapshot and timeave)
789    o non-hydrostatic code
790      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
791        in calc_gw.F
792      - defaults to viscAh
793      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
794        friction or Leith) in non-hydrostatic mode, as long as there is
795        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
796    o pkg/cost
797      extend simple cost functions to treat time mean quantities
798      (T,U,V) via cost_accumulate_state from cost_tile
799    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
800        be 2 times larger than the minimum size the advection scheme requires.
801        now get a perfect conservation of salt in advect_cs test-exp (updated)
802    o GGL90 (Gaspar's TKE mixed layer)
803      - add horizontal diffusion of TKE, requires exchanges in
804        do_fields_blocking_exchanges, horizontal diffusivity is zero by
805        default. In OPA there is no horizontal diffusion of TKE but the
806        mixing coefficients are computed from a horizontal average of TKE of
807        6 points or so. I think that diffusion has a little more physical
808        justification.
809      - clean up ggl90_calc in the hope of reducing memory usage (this hope
810        was in vain)
811      - mask tke-variable in ggl90_init
812    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
813    o fix biharmonic diffusion on CS-grid.
814    o more obcs stuff
815      - added obcs_external_fields_load as an alternative to the EXF-pkg option
816        for reading boundary values. This routine is called from
817        obcs_prescribe_read
818      - updated obcs_check
819      - changed sponge layer relaxation parameter units for days to seconds
820      - turned off sponge layer by default
821      - changed argument list of OBCS_CALC to myTime+deltaTclock
822      - fixed about 35 bugs in obcs_external_fields_load
823    
824    checkpoint55c_post
825    o obcs stuff
826      - new runtime flags useOBCSprescribe, useOBCSbalance
827      - re-arranged obcs_calc
828      - moved exf_getobcs to obcs_prescibe_read
829        obcs_prescibe_read is called after ORLANSKI stuff
830        and independent of it (executable can contain all).
831      - updated obcs_check
832      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
833        These may be necessary only if tangential velocities are
834        prescribed at OB, not sure, needs testing.
835    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
836      which simplifies the calls and passes the ifc check-bounds test
837    
838    checkpoint55b_post
839    o add a 2D scalar, Z location, exchange_2 routine.
840    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
841      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
842      affects advect_cs results (for the wrong reason): update output.txt
843    o use a more standard discretization for biharmonic viscosity ;
844     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
845      affects results of dome set-up: update output.txt
846    o fix gad_advection.F (CubedSphere part), back to version 1.23
847    o fix bug in mom_vi_del2uv.F (CubedSphere part).
848    
849    checkpoint55a_post
850    o merged code to
851      * prescribe/read time-dependent open boundaries
852        (works in conjunction with exf, cal)
853      * sponge layer code for open boundaries
854      * each boundary N/S/E/W now has its own CPP option
855        (healthy for the adjoint)
856    
857    checkpoint55
858    o up-to-date adjoint of previous breaks
859      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
860      - global_ocean_ebm: adjoint still needs fix (TLM ok)
861      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
862      - carbon: * remove tr1-related adjoint verification
863                * add ptracer as control variable
864    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
865      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
866    
867    checkpoint54f_post
868    o in verification/carbin/ remove experiment related to
869      ALLOW_PASSIVE_TRACER (array tr1 etc)
870      code_ad/ input_ad/ results_ad
871    
872    o add two new packages
873      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
874        + subject to optimization (memory)
875      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
876        + subject to reordering (many GOTOs in the original code)
877        + so far opps is called for every (i,j) point, and then operates in
878          the vertical; one may want to reorder the scheme in order operate in
879          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
880          fields)
881    o overhaul of IO so that we now have flags for MDSIO and/or MNC
882      - all verification tests compile and run with linux_ia32_g77
883      - defaults are compatible with current input files--nothing
884        should change if you were not previously using MNC
885      - MNC output has been added in numerous places (eg. timeave)
886        but there are still a few writes not yet do-able with MNC
887        (this is in progress)
888      - flags now allow for either/or/both use of MDSIO and MNC and
889        documentation will soon follow
890      - numerous small formatting cleanups for ProTeX
891    o add version info (via BUILD_INFO.h) to MNC and stdout
892    
893    checkpoint54e_post
894    o add two new packages
895      - pp81 (Packanowski and Philander, 1981), Richardson number and
896        stratification dependent mixing
897      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
898      - these scheme operate in a similar manner as KPP (without ghat, of
899        course), however there is only one diffusivity that is used for both
900        temperature and salinity (and passive tracers)ç
901    o add offline package
902    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
903      provided by Stephanie Dutkiewicz
904    o genmake2: add ability to search for C compilers and cleanup test output
905      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
906    
907    checkpoint54d_post
908    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
909    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
910      leading to additional shift by 5 days each year of integration
911       (i.e. leading to considerable offset over the years)
912    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
913    o start with no AB and no initial filtering (staggerTimeStep):
914      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
915    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
916      (external loading & cpl import/export stay in forward_step.F)
917    o update coupling interface to work with new staggerTimeStep
918    o change MDSIO ptracers_pickup.
919    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
920    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
921    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
922    
923    checkpoint54c_post
924    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
925      this affects (truncation error) output.txt of test-exp:
926       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
927    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
928    o change Qnet to always be the net heat flux, (+upward).
929      affects (truncation error) output of natl_box exp.: updated
930    o define the max number of passive tracers in PTRACERS_SIZE.h
931    o start to test mnc routinely in exp0
932    o add sea-ice loading (sIceLoad) as a new forcing field.
933    
934    checkpoint54b_post
935    o add testreport "-j JOBS" option for parallel builds (tested and pretty
936       impressive on Altix and Opteron systems)
937    o diagnostics can now write NetCDF files through the mnc package
938    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
939    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
940    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
941      affects (truncation error) output of lab_sea & natl_box exp.: updated
942    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
943    
944    checkpoint54a_post
945    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
946    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
947    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
948    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
949      + internal_wave (shift in writing cg2d_ini_res)
950    checkpoint54a_pre
951    
952    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
953      - modified verification/lab_sea and natl_box_adjoint accordingly
954    
955    checkpoint54
956    checkpoint53g_post
957    o prepare splitting of thermodynamics: store convect.counter in common block
958    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
959      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
960    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
961    o new parameter "nShapS": allow to treat differently S from T (nShapT)
962    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
963    o restore adjointability
964    
965    checkpoint53f_post
966    o modifications that affect AIM experiment results (update output.txt):
967      - no advection of S at top interface Nr (pkg/generic_advdiff)
968      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
969    o AIM pkg:
970      - include stability function into surf.Flux derivative relative to Tsurf
971      - calculate clear-sky radiation & surface temp. change (for diagnostics)
972    
973    checkpoint53e_post
974    o merged cylindrical coord configuration
975    o added rotating_tank experiment
976    checkpoint53e_pre
977    
978    checkpoint53d_post
979    o faulks upgraded: re-generate output.txt that have changed:
980       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
981    o Added Bryan and Lewis, 1979, vertical diffusivity profile
982    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
983    o added Sadourny discretization of Coriolis
984      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
985      - re-enabled use of omega3 (useAbsVorticity)
986    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
987      vector-invariant equations
988      - note: does *NOT* yet use same variable visc. for no-slip BC's.
989    o recoded the lateral boundary conditions for non-hydrostatic w, this time
990      hopefully without new bugs
991      - still to do: biharmonic friction for non-hydrostatic w
992    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
993    o regenerated output for global_ocean_ebm (using -ieee)
994    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
995      of mom_common/
996      - simple re-arrangement of instructions within computing loop
997    checkpoint53d_pre
998    
999    checkpoint53c_post
1000    o new version of coupler for AIM+thSIce and Ocean models
1001     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1002     - land: change Evaporation of snow
1003     - aim with thSIce: fix bug in snow-precip.
1004    o changes to calc_gw.F
1005     - bug fix for w^2 term near the bottom boundary
1006     - (hopefully) improve the lateral slip boundary condtions for use with
1007        partial/looped cells
1008      - because the bug fix changes two verification experiments anyway (exp5
1009        and plume on slope), change the lateral boundary condition from half slip
1010        to the value of no_slip_sides
1011    o ebm package wasnt quite up to the parallel task. Fixed that.
1012    o Adjoint of EBM package + verification
1013      * TLM OK
1014      * ADM not sufficient accuracy yet (needs further testing)
1015    
1016    checkpoint53b_post
1017    o Commiting new energy balance model to repository
1018      * package is pkg/ebm
1019      * verif. is verification/global_ocean_ebm
1020      * references are in ebm_driver.F
1021    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1022    C        Global thermohaline circulation. Part I:
1023    C        Sensitivity to atmospheric moisture transport.
1024    C        J. Climate 12(1), 71-82
1025    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1026    C        Global thermohaline circulation. Part II:
1027    C        Sensitivity with interactive transport.
1028    C        J. Climate 12(1), 83-91
1029    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1030    C        Destabilization of the thermohaline circulation
1031    C        by atmospheric eddy transports.
1032    C        J. Climate 7(12), 1870-1882
1033    o Will need long integration testing.
1034    checkpoint53b_pre
1035    
1036    o created pkg/mom_common in preparation for variable viscosity code
1037    o renamed and split ini_mnc_io
1038    o pkg/land: only liquid water can diffuse or run-off
1039    o AIM using land: soil wetness availability account for snow
1040    o added printMapIncludesZeros to EEPARMS namelist
1041    
1042    checkpoint53a_post
1043    o restore TAMC compatiility for exf_constants.h
1044      (no usage of _d in .h)
1045    o Additional storing in KPP in an attempt to fix
1046      TAMC problem with adjoint of KPP code.
1047      (no success...)
1048      Identical code works fine with TAF.
1049    o Fixed verification/natl_box_adjoint experiments.
1050      Initial conditions for Experiments 4 and 5 are now
1051      set to "SEAICE_initialHEFF=0", which is more reasonable,
1052      and hence gives results closer to that of Experiment 2.
1053      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1054    
1055    checkpoint53
1056    o stable checkpoint with up to date adjoint
1057      TLM tests only run for 1st grdchk at the moment. Its unclear if
1058      this is a code problem or a problem with resetting code for g_
1059      variables that is being autogenerated wrong.
1060      Otherwise:
1061       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1062       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1063         are both still in chaos following their security messes.
1064    
1065    checkpoint52n_post
1066    o various build (mostly genmake2) changes including:
1067      - ability to build/run more easily within Cygwin and MacOS X
1068      - more complicated Makefiles with a stronger dependence on Gnu Make
1069    o pkg/seaice modifications
1070      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1071        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1072        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1073      - changed proxy for geostrophic velocity and updated
1074        verification/lab_sea/results/* accordingly
1075      - removed ADI dynamic solver from pkg/seaice
1076      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1077        they caused a segmentation fault under certain circumstances
1078      - removed unused field WATR
1079    o bug fix in exf-package:
1080      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1081         now reflect that.
1082    o small fixes in the cal-package:
1083      - set reference date to first of January for the 'model'-calendar
1084      - failing of cal_CheckDate in cal_FullDate now actually results in a
1085        warning
1086    o small modifications in exf-package to increase flexibility:
1087      - change climtempfreeze from a constant to a runtime parameter that
1088        is specified in data.exf_clim (default = -1.9)
1089      - introduce runtime parameter windstressmax (default = 2.0) that is
1090        specified in data.exf
1091    o fix in pkg/thsice:
1092      - update Evap (Tsf changes) to be consistent with Latent heat flux
1093      - maintain snow precipitation unchanged (even if Tsf >=0).
1094     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1095    
1096    checkpoint52m_post
1097    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1098      this does not change any of the results, because myIter=0 in swfrac always
1099      lead to jwtype=2 (the default anyway), but the call makes little sense
1100      as a default
1101    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1102    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1103      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1104    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1105    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1106    o extending useSingleCpuIO option to work with new exch2 I/O format
1107      - old-style, missing-tile I/O is still accessible by defining CPP
1108        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1109    o monitor package can write to NetCDF files and/or STDOUT
1110    o fix re-definition bug in MNC_GRID_INIT_ALL()
1111    o doc/api_reference added
1112      - a framework for building an API Reference Manual using all
1113        the "protex" comments embedded in the code
1114      - see pkg/generic_advdiff, pkg/mnc for examples
1115    o MNC:
1116      - make myThid the last argument for all subroutines
1117      - new default for the grid files: NO halos
1118      - add useMNC and other run-time flags
1119      - separate per-file-group handling of the unlimited dimension
1120      - early initialization of MNC w/ flags read at the eeboot stage
1121        and lookup tables set in initialize_fixed
1122      - write all MNC output to a freshly-created directory
1123    o thermodynamics sea-ice (thsice) is now tested with testreport.
1124    o test exp. advect_cs: use the standard cs32 grid ; update output.
1125    o Added functionality to grdchk:
1126      pick global i,j,k position (or nearest wet) where to perform check.
1127    
1128    checkpoint52l_post
1129    o new land formulation:
1130      a) use ground enthalpy as prognostic variable to ensure exact
1131         energy conservation.
1132      b) account for water temperature and for latent heat of freezing
1133         in all processes (rain, run-off, ground storage)
1134      c) compute surface and ground temperature implicitly.
1135    o aim_v23 modification for new land model:
1136      a) Treat separately land / ocean / sea-ice surface fluxes
1137         to allow implicit computation of land & sea-ice surface temp.
1138      b) add snow precipitation.
1139    checkpoint52l_pre
1140    
1141    o fix problem (when 1 tile is empty) in min/max monitor.
1142    o fix bug in timeAve (u,vZetatave in common block)
1143    o no restoring terms under ice for pkg/seaice
1144    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1145    o bug fix for pkg/seaice pickups
1146    o change MNC call locations and add coordinate attributes
1147    o mask vorticity at the corner ; affects global_ocean.cs output
1148    o fix ini_curvilinear_grid ; test CS experiments with mpi
1149    o aim.5l_cs: modify sea-ice fraction input file ; update output
1150    o exf: Adding simple range check routine for exf fields after read
1151    
1152    checkpoint52k_post
1153    o removed top-level directory "diags"
1154      - we migrated these functions to pkg/timeave a long time ago
1155    o fixed bug introduced in pkg/monitor
1156    o accuracy ctrlprec = 32 insuffient for gradient checks using
1157      averaged fields (I/O via cost_averages)
1158      -> use ctrl.h in active_file*.F to control I/O precision.
1159    o paramter list of CALL ADTHE_MAIN_LOOP
1160    o added initial do_the_model_io to ecco
1161    o set all ...Freq to zero after cost_final
1162      taveFreq, dumpFreq, pChkptFreq
1163    o MAIN and ECCO differentiability restored
1164    
1165    checkpoint52j_post
1166    o fix nchklev in tamc.h for global_ocean...
1167    o Bringing flow and store directives up-to-date
1168    o Really weird thing!
1169      call do_the_model_io from the_main_loop with parameters
1170      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1171      TAF places a faulty re-call of initialise_varia
1172      after cost_final call which should not be there!
1173    checkpoint52j_pre
1174    
1175    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1176      error messages
1177    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1178    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1179      debug output
1180    o modfied mdsio_writefield.F to handle non-global files under exch2
1181    o update AIM Cubed-Sphere exp (aim.5l_cs):
1182      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1183    o update AIM Equatorial Channel exp:
1184      use standard aim_v23 pkg and change the SST fields to be more realistic.
1185    o globalFile now works with exch2
1186    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1187      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1188    o limit timeave output for hi-res integrations
1189    
1190    checkpoint52i_post
1191    o removed CPP_EEOPTIONS.h from verification/*/code
1192    o updated the tiling for global_ocean_pressure
1193    checkpoint52i_pre
1194    
1195    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1196      the old pkg/aim).
1197    
1198    checkpoint52h_pre
1199    o shortened offending lines in exch2_send_rx?.template
1200    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1201    o genmake2: add build & execute test for NetCDF code
1202    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1203      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1204    o added useSingleCPUIO flag to monitor.F and mon_out.F
1205    o added temporary hack for sea-ice dynamics on the cube:
1206      metric terms are ignored and it is assumed that
1207      there is no sea-ice on cube faces 1, 2, 4, and 5.
1208    
1209    checkpoint52f_post
1210    o added exch2 cube routines to pkg/exch2
1211    o modified hs94.cs-32x32x5 to use it
1212    o added new grid files to hs94.cs-32x32x5
1213    checkpoint52f_pre
1214    
1215    checkpoint52e_post
1216    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1217      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1218    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1219      to work with implicit vertical advection and AB ;
1220    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1221    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1222     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1223    checkpoint52e_pre
1224    
1225    o fix bug in impldiff when Nr=1 or Nr=2.
1226    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1227    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1228    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1229      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1230    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1231    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1232    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1233    
1234    checkpoint52d_post
1235    o re-tiled many expts to allow comparison in multi-processor mode
1236      - updated output accordingly
1237      - changed hs94.128x64x5 to use intial T from file rather than use the
1238        random number generator
1239    o add infrastructure in model routines for fizhi and gridalt packages
1240    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1241    o changes to permit hi-res, cubed-sphere, configuration
1242      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1243      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1244      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1245        of surface winds for the cube
1246      (A verification experiment, based on global_ocean.cs32x15, but with
1247       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1248       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1249       complete with example surface forcing files and matlab scripts to look
1250       at the output and compare it with that of global_ocean.cs32x15.)
1251    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1252       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1253       to conform to the common rule.
1254    o check-in the first version of the coupler + interfaces for multi-components
1255       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1256       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1257       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1258       - ocean and atmos. share the same horizontal grid (no interpolation).
1259       - exchanges between component and coupler is done in forward_step
1260    o new verification experiment, cpl_aim+ocn:
1261       coupled ocean - AIM atmosphere on cs32 grid.
1262    
1263    checkpoint52d_pre
1264    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1265    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1266    
1267    checkpoint52c_post
1268    o Fixing OPTIONS files for use of exf:
1269      - ALLOW_ECCO not needed
1270      - ECCO_CPPOPTIONS.h should not be included from
1271        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1272        as has been the case in the past
1273      - All cal/exf related options are currently set in
1274        single header file. Should remain so until we
1275        agree on a consistent new policy.
1276    o Removed all CPP options for cal package.
1277      cal has no more CPP options.
1278    o modified STOREs in GAD_ADVECTION
1279    o corrected key comp. for passkey
1280    
1281    checkpoint52b_post
1282    o new version: "thsice" of thermodynamic sea-ice pkg:
1283     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1284     - modify fluxes but do not change theta directly;
1285     - light cleaning of bulk_force pkg (still needed with thsice).
1286     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1287       + output_thsice.txt to test thsice & bulk_force pkgs.
1288    o put back grid & coriolis monitor output.
1289    checkpoint52b_pre
1290    
1291    o call "do_the_model_io" at the beginning (=> dump initial state)
1292    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1293    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1294      (need info on NUMBER_OF_PTRACERS)
1295    o missing PTRACERS headers in some routines
1296    o default tamc.h in pkg/autodiff supposed to crash
1297      to ensure proper customization
1298    
1299    checkpoint52a_post
1300    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1301      - moved surfaceTendencyTice from pkg/seaice to main code
1302      - subroutine FREEZE_SURFACE now limits only surface temperature
1303        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1304        => new output.txt for global_ocean.cs32x15 & global_with_exf
1305      - keep the old version of FREEZE for backward compatibility;
1306        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1307      - corresponding modifs for TAF directives
1308    o added surface flux output variables to TIMEAVE_STATVARS
1309    o time-averaged output for pkg/ptracers
1310    o fix problem with ECCO-related divided adjoint
1311      snapshot file was missing some ad-variables,
1312      but no warning issued by TAF
1313    
1314    checkpoint52a_pre
1315    o some bug fixes for #undef REAL4_IS_SLOW
1316    
1317    checkpoint52 = ecco_c52_e35
1318    o after testing adjoints of checkpoint51u_post
1319    
1320    checkpoint51u_post
1321    o this is the post-merge tag of the ecco-branch
1322      (needs another clean checkout and re-testing)
1323    o various natl_box_adjoint configs and results
1324      but no input fields
1325    o obcs adjoint not yet merged!
1326    o adding ECCO global 1x1 and 2x2 degree configs
1327    o updated/extended some store directives for seaice
1328    o pkg/ecco now containes ecco-specific part of cost function
1329    o top level routines the_main_loop, forward_step
1330      supersede those in model/src/
1331      previous input data.cost now in data.ecco
1332      (new namelist ecco_cost_nml)
1333    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1334    
1335    checkpoint51t_post
1336    o this is the pre-merge tag of the ecco-branch
1337    
1338    checkpoint51s_post
1339    o cleanup: removed various obsolete #define-s
1340    o pkg/grdchk
1341      - renamed 'ph-grd 3' to 'grad-res'
1342      - merged from ecco-branch
1343        (remaining bug fixes for obcs gradient checks)
1344      - additional high-precision output for testreport
1345        (grep for 'precision_grdchk_result')
1346    
1347    checkpoint51r_post
1348    o cleaned up or removed CPP_OPTIONS.h files
1349    o updated results for some of the tests to reflect the new
1350      optfiles (-ieee: -O0 instead of -O3)
1351    
1352    checkpoint51q_post
1353    o cd_code:
1354      - moved cd_scheme.F -> cd_code_scheme.F
1355      - separate read_checkpoint from cd_code_ini_vars.F
1356      - separated cd_code part from write_checkpoint
1357      - updated AD_SOURCE, generated .flow
1358      - added CD_CODE_VARS.h to the_main_loop
1359      - Moving cd_code specific store dir.s to pkg/cd_code
1360    o ctrl package totally restructured
1361      - pack/unpack now optional and decoupled from
1362        xx_/adxx_ I/O
1363      - ctrl_pack/unpack cleaned
1364        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1365      - confined inclusion of AD_CONFIG.h to where necessary.
1366    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1367    
1368    checkpoint51p_post
1369    o create initial cd_code package
1370      - WARNING: the initialization of fields within packages
1371        is broken because INI_FIELDS (where READ_CHECKPOINT is
1372        called) is called *before* PACKAGES_INIT_VARIABLES.
1373        This seems to be backwards since
1374        1) its important to initially zero the entire field including
1375           the "halo" region
1376        2) zeroing needs to be done *before* reading pickup info
1377           and the pickup call might or might not happen in any
1378           particular run
1379      - this needs an overhaul for R2
1380    o cleanup verification/*/code/GMREDI_OPTIONS.h
1381    o cleanup testreport
1382    
1383    checkpoint51o_post
1384    o bringing AD-related verif's up to date with genmake2
1385      - carbon/
1386      - global_ocean.90x40x15/
1387      - hs.94.1x64x5/
1388      - (front_relax/ )
1389    o (more) consistent directory structure for AD-related verif.'s
1390    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1391    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1392    o bug fix in find_alpha.F for MDJWF:
1393      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1394        change rho -> rho-rhoConst
1395      - replace call find_rho to find_rhonum
1396    o initialisation of rFlx extended to full array (required by TAF)
1397      and shifted to thermodynamics
1398    o removed PTRACERS.h in ptracers routine
1399    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1400    o Correcting initialisations for fVerU, fVerV.
1401    o helping TAF to recognize dependency on kUp for
1402      fVerU, fVerV
1403    o Replacing delZ by delR in pkg/ctrl/
1404    checkpoint51o_pre
1405    
1406    o undid all of cp51 pending some cleanups and discussion
1407    o added the [#include "AD_CONFIG.h"] statement to all files that need
1408       it for adjoint/tl #defines
1409     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1410     o removed tools/genmake since it no longer works
1411    
1412    checkpoint51n_post
1413    o modifications to make FREEZE flux visible to pkg/kpp
1414      - moved surfaceTendencyTice from pkg/seaice to main code
1415      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1416      - subroutine FREEZE now limits only surface temperature
1417        (this means new output.txt for global_ocean.90x40x15,
1418         global_ocean.cs32x15, and global_with_exf)
1419    o added surface flux output variables to TIMEAVE_STATVARS
1420    
1421    checkpoint51n_pre
1422    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1423    o added [#include "AD_CONFIG.h"] to all files that use the following
1424      defines:
1425      - ALLOW_ADJOINT_RUN
1426      - ALLOW_TANGENTLINEAR_RUN
1427      - ALLOW_ECCO_OPTIMIZATION
1428    
1429    checkpoint51m_post
1430    o incorporating changes to get TAMC/TAF working in genmake2
1431      - added new TAMC/TAF targets to the Makefile
1432      - various cleanups related to package handling
1433      - these changes should have no impact on the forward model
1434    
1435    checkpoint51l_post
1436    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1437     - faster algorithm for cal_addtime.F
1438     - higher precision arithmetic, where needed
1439     - pkg/exf *startdate variables changed from calendar date to
1440       model integration time
1441    
1442    checkpoint51l_pre
1443    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1444    o enable to apply restoring on S & T only in a latitude band.
1445    o update output (external_forcing_surf modif. change truncation errors)
1446       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1447    
1448    checkpoint51k_post
1449    o change default to: useNHMTerms=.FALSE.
1450     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1451       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1452     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1453        exp1, ideal_2D_oce
1454     - change data file of oceanic exp (leave the results unchanged for now)
1455       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1456    o set gravitySign automatically according to the vertical coordinate used
1457      (and change sign: back to "logical" value: +1 when R increases downward)
1458    o added an include barrier to the default CPP_OPTIONS.h and
1459      removed the #include "PACKAGES_CONFIG.h" from it
1460    o fix a bug in mom_fluxform (from chk51j_post)
1461    
1462    checkpoint51j_post
1463    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1464    o adjusted some flow directives (dynamics, thermodynamics)
1465    o added cubed-sphere case to test cost function
1466    o heckpoint_lev?_directives.h now include
1467      pkg-specific directives, whenever those are enabled.
1468    o Moving pkg-specific flow directives to corresponding pkg
1469      Moving pkg-specific differentiation list to corresponding pkg
1470      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1471      ---> conventions are
1472           - pkg_ad.flow
1473           - pkg_ad_diff.list
1474           - pkg_ad_check_lev?_dir.h
1475    
1476    checkpoint51i_post
1477    o merge of the branch-genmake2
1478      - knowingly breaks the older genmake
1479      - automatic generation of all ALLOW_${PKG_NAME} defines
1480      - new testreport supersedes older testscript
1481    o large number of package inclusion and header cleanups
1482    checkpoint51i_pre
1483    
1484    o new output for adjoin of global ocean vector invariant
1485    o fix for checkpoint of thermodynamic seaice and bulk_force
1486    o Steph gchem various cleanups
1487    
1488    checkpoint 51h_pre
1489    o fixed some single quotes
1490    o modify gchem pkg to be more versatile
1491    o modifications to clean up dic pkg
1492    o add pkg/cfc
1493    
1494    checkpoint51g_post
1495    o provide links for ARPACK and ADM*TLM
1496    o start removing verification/vero/
1497    o update AD-related stuff
1498      (in particular some IF-statements in model/src/ routines)
1499    o adding to verification/global_ocean.90x40x15/ adjoint of
1500      vector invariant setup
1501    
1502    checkpoint51f_post
1503    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1504    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1505      of tracer Green's fucntions for ocean inversion project.
1506    
1507    checkpoint51f_pre
1508    o Added on-the-fly spatial interpolation capability
1509        "USE_EXF_INTERPOLATION" to pkg/exf.
1510      - This is a temporary Cartesian-grid hack until
1511        the super-duper ESMF coupler becomes available.
1512      - See verification/global_with_exf/README for usage example.
1513      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1514        flags and modified pkg/seaice accordingly.
1515    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1516        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1517        non-local transport term.
1518    
1519    checkpoint51e_post
1520    o pkg/mom_vecinv:
1521      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1522      - add time-ave diagnostic of vorticity advection.
1523    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1524    o atmospheric geopotential: - include water vapor effect;
1525                                - use p^kappa in p* scaling.
1526    o land pkg: read initial state from files.
1527    o AIM : add stratospheric drag in the upper level
1528    
1529    checkpoint51d_post
1530    o change function ILNBLNK (=> last non-blank char.) to return zero
1531      (instead of the string length) when the string. char is empty
1532    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1533    o modif's to restore TAMC compatibility
1534      - avoid "_d" constructs in PARAMETER declarations
1535      - avoid interrupting lines by comment lines
1536    o Use cluster local disks for purely local I/O
1537      vs. globally visible disks needed for ctrl stuff
1538      (merged from ecco-branch)
1539      - new active_file_loc... and mdsio_..._loc routines
1540      - affected packages: autodiff, ctrl, grdchk, mdsio
1541    
1542    checkpoint51c_post
1543    o introducing integer flag debugLevel
1544      - debLevZero: suppress all output
1545      - debLevA: standard
1546      - debLevB: equivalent to current debugMode=.TRUE.
1547    o introducing pathname variable mdsioLocalDir for mdsio
1548      that can be specified at runtime
1549      (relevant for cluster I/O to local disk)
1550    `
1551    >>>checkpoint51b_post
1552    adjoint of ptracers
1553    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1554    o extended state in checkpoint_lev?, etc.
1555    o alternative ctrl/cost with tr1 or ptracer
1556    o new comlev1_bibj_ptracers
1557    o new ptracers.flow
1558    o made ptracers_forcing same as external_forcing_s
1559    o added verification for adjoint with ptracers
1560      - adm. grdchk fail so far
1561      - tlm. grdchk OK
1562      - checked tapelev/comlev recomputations: OK
1563    <<<checkpoint51b_pre
1564    
1565    checkpoint51a_post
1566    o added code for biogeochemistry package
1567      - new pkgs: dic, gchem
1568      - new subroutine in ptracers
1569    o modify code for biogeo packages
1570      - in model/src and pkg/ptracers
1571    
1572    checkpoint51
1573    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1574      - autodiff, ctrl, exf, grdchk, seaice
1575      kept separate packages
1576      - cost, ecco, obcs
1577    o updating verification/internal_wave, verification/lab_sea
1578      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1579    
1580    checkpoint50i_post
1581    o Preparing next differentiable checkpoint and sync
1582      of MAIN vs. ecco-branch
1583      - 1st step: this one is differentiable
1584      - 2nd step: next(! not this) checkpoint will have updated packages
1585                  from ecco-branch)
1586    
1587    checkpoint50h_post
1588    o new package "land": provide surface BC for AIM.
1589    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1590    o AIM: use true log-P extrapolation for near surface temp (= as in
1591        F.Molteni paper) ; update aim.5l_cs output.
1592    o New variable in PARM03 for more flexible pickups
1593    o somewhat cleaned package initialisation sequence for
1594      ctrl/ cost/ ecco/ in packages_... routines
1595    
1596    checkpoint50g_post
1597    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1598      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1599      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1600        made the default because of faster convergence than ADI
1601    
1602    checkpoint50f_post
1603    o exf totally restructured
1604      - replaced all exf_set_ routines by one generic exf_set_gen.F
1605        and made sure it's still differentiable
1606      - split exf_getffields.F into new exf_bulkformulae.F
1607      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1608      - updated adjoint/makefile and relevant verif. accordingly
1609    
1610    checkpoint50f_pre
1611     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1612          + change Evap over land. (update aim.5l_cs output)
1613     o added missing .cvsignores and made uniform across expts
1614     o changed configuration of tidal_basin_2d expt
1615     o added pkg/debug functions for tracing code in fatal crashes
1616     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1617     o new fn in pkg/monitor to stop model if solution grows too big
1618     o removed lots of single quotes from comments
1619    
1620    checkpoint50e_post
1621    o make KPP work with PTRACERS
1622     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1623       nearly a copy of kpp_transport_s
1624     - there is no analogue to SurfaceTendencyS, so I have to use
1625       gPtr(of the surface layer) instead
1626    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1627    checkpoint50e_pre
1628    
1629    checkpoint50d_post
1630    o change kpp output from multiple-record state files to single-record state
1631      files analogous to write_state.F
1632    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1633      analogous to the cg2d-related output.
1634    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1635      so that writing to internal file fn (with length 512) fails.
1636    checkpoint50d_pre
1637    
1638    checkpoint50c_post
1639    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1640    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1641    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1642    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1643    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1644    
1645    checkpoint50c_pre
1646    Merging from release1_p13:
1647    o bug fix for pkg/seaice dynamic solver
1648    o Added SEAICE_initialHEFF to pkg/seaice
1649    
1650    checkpoint50b_post
1651    o store u*,v* in gU,V instead of in guNm1,gvNm1
1652    o in order to put the momForcing out of the Adams-Bashforth:
1653      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1654      to timestep.F
1655    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1656    o re-generate output for highly sensitive test-exp:
1657       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1658    
1659    checkpoint50b_pre
1660    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1661    o corrected CPP option mismatch in exf_Bulk... functions for case
1662      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1663    
1664    checkpoint50a_post
1665    o Bug fix for merging between c50 and KPP.
1666      ikey was passed from thermodynamics to kpp_calc via
1667      common block rather than being recomputed in kpp_calc,
1668      in contradiction with new key itdkey.
1669      New key ikppkey created, and tamc.h headers updated.
1670    
1671    checkpoint50
1672    - 2nd step of merge with ecco-branch:
1673      merge changes in ecco-branch back into main trunk
1674    - bug fix in find_alpha
1675    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1676    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1677    - merged some sliced AD support routines
1678    
1679    checkpoint49
1680    merged from ecco-branch:
1681    o exf:
1682      - Enable initialisation of forcing fields to constant
1683        (runtime) values.
1684      - in exf_getffields.F
1685        Reduce i-/j-loop to interior domain, discarding overlaps.
1686        That also fixes wrong TAF-key computations for key_1, key_2
1687        with bulf formulae.
1688      - exf_init.F modify #ifdef for exf_init_evap
1689      - exf_getffieldrec.F, ctrl_getrec.F
1690        The following INT-usages are not safe:
1691          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1692          fldcount = int(fldsecs/fldperiod) + 1
1693        and were modified.
1694    o autodiff: checkpoint_lev...
1695      - updated storing for bulk formulae (some arrays were missing)
1696      - added state for seaice package
1697      - synchronized with main branch
1698    o DIVA:
1699      Modif.s in
1700      - the_main_loop.F
1701      - the_model_main.F
1702      and added cost_final_restore.F cost_final_store.F
1703      o With these changes, it is possible to fully separate
1704        the first forward run to compute the cost function (mdthe_main_loop)
1705        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1706        into separate model executions.
1707        This enables better tuning of DIVA to given queue sizes.
1708      o Loss of cost function value in consecutive DIVA runs is
1709        fixed by storing to 'costfinal' file.
1710      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1711        beginning/end of adjoint integration is accounted for.
1712      The current changes apply to TAF-1.4.26.
1713      TAF has one remaining bug, requiring one manual change
1714      (see MITgcm manual).
1715    o cal: synchronized between MAIN and ecco-branch
1716    
1717    checkpoint48i_post
1718    o Changes to restore differentiability of code w.r.t. previous tag
1719      (mostly adding new routines to make list and replacing
1720      pressure by totPhiHyd).
1721    o Updated and merged grdchk package
1722      - has both ADM and TLM checks
1723      - works for single- and multi-proc.
1724      - output cleaned
1725      - worked successfully for parallel DIVA
1726    o genmake:
1727      - Adding -platform=SP4
1728      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1729    o Modif. for DIVA:
1730      ctrl_unpack should not be called in intermediate DIVA interval.
1731      (similar thing would apply for active files such as
1732      tbar, sbar, psbar, which should not be reinitialised;
1733      only relevant for ecco-branch)
1734    
1735    checkpoint48h_post
1736    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1737    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1738    o Added SEAICE_initialHEFF to pkg/seaice
1739    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1740    
1741    checkpoint48g_post
1742    --- EOS:
1743    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1744      store total Potential in totPhyHyd for diagnostics & EOS.
1745    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1746    --- Pressure/geopotential gradient:
1747    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1748    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1749      ( changes results of global_ocean_pressure )
1750    o NLFS + z-coord.: add eta*Rho' contribution.
1751    o accurate phiHyd when using interface-W at the middle between 2 centers
1752     ( changes results of ideal_2D_oce )
1753    o includes r* 2nd term in potential gradient.
1754    
1755    checkpoint48f_post
1756    Merging from release1_p12:
1757    o Modifications for using pkg/exf with pkg/seaice
1758      - improved description of the various forcing configurations
1759      - added basic radiation bulk formulae to pkg/exf
1760      - units/sign fix for evap computation in exf_getffields.F
1761      - updated verification/global_with_exf/results/output.txt
1762    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1763      (SBO) core products, including oceanic mass, center-of-mass,
1764      angular, and bottom pressure (see pkg/sbo/README.sbo).
1765    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1766      to avoid negative values in shallow regions.
1767      - updated verification/natl_box/results/output.txt
1768      - updated verification/lab_sea/results/output.txt
1769    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1770    o Added useSingleCpuIO option (see PARAMS.h).
1771    o Updated useSingleCpuIO option in mdsio_writefield.F to
1772      work with multi-field files, e.g., for single-file pickup.
1773    o pkg/seaice:
1774      - bug fix in growth.F: QNET for no shortwave case
1775      - added HeffFile for specifying initial sea-ice thickness
1776      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1777    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1778      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1779    o pkg/seaice:
1780      - adjoint-friendly modifications
1781      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1782    
1783    checkpoint48e_post
1784    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1785    o dynamics: change definition of computational domain & adapt mom_fluxform
1786      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1787    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1788        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1789        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1790        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1791        inverted_barometer solid-body.cs-32x32x1
1792      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1793    
1794    checkpoint48d_post
1795    o in preparation for r*:
1796     a) use pre-computed gradient of hydrostatic potential:
1797        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1798     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1799        => affects results of glob_oce_pressure (different truncation error)  
1800      update output.txt of ideal_2D_oce & global_ocean_pressure
1801    
1802    checkpoint48d_pre
1803    o in preparation for r*:
1804      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1805      pass the 2 comp. of the grad. as arguments to momentum S/R.
1806      but for the moment, only used if it does not change the results.
1807    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1808    
1809    checkpoint48c_post
1810    Modifications in treatment of initial flux forcing controls
1811    to avoid extra storing of flux fields.
1812    
1813    checkpoint48c_pre
1814    o Added tidal_basin_2d experiment (currently 1D!)
1815    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1816    
1817    checkpoint48b_post
1818    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1819     (modification to pressure gradient not yet implemented)
1820    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1821      (for U & V) that are used for vertical advection of momentum.
1822    
1823    checkpoint48a_post
1824    o In preparation for r*, use temp. array to compute vertical transport
1825       in flux-form momentum pkg. => change results of few test-exp.
1826      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1827                        lab_sea, natl_box & plume_on_slope
1828    
1829    checkpoint48
1830    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1831    
1832    checkpoint47j_post
1833    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1834    o moved adexch from forward_step to addummy_in_stepping
1835    o added exch in ctrl_map_...
1836    o aveFreq.=0. at end of cost_final to avoid overwrite in
1837      reverse checkpointing loop
1838    o Yet more changes in gmredi:
1839      * adgmredi_calc_tensor
1840        avoiding all recomputation of gmredi_slope_limit
1841      * adgmredi_x/y/rtransport
1842        added flag for excessive storing to avoid recomp. of
1843        u/v/rtans, dTdx/y/z
1844        -> this is not really necessary and very memory-consuming
1845      * adgmredi_slope_psi:
1846        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1847      * gmredi_slope_limit
1848        re-activated full calculation of taperfct for case 'ac02'
1849    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1850    
1851    checkpoint47i_post
1852    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1853    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1854      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1855    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1856    o gmredi: fix few bugs.
1857    
1858    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1859    This will be a good checkpoint to plug into the ecco-branch.
1860    o few modif.'s to get latest version adjointed
1861      (mainly kick out code in ini_linear_phisurf)
1862    o modif's to run adjoint with exactConserv
1863    o case GM_BOLUS_ADVEC should be cleaned
1864      S/R gmredi_slope_psi should be cleaned
1865    o verification/carbon now has exactConserv=.TRUE.
1866    
1867    checkpoint47g_post
1868    o time-average AIM output: becomes independent from statvars time-average
1869      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1870    o After TAF bug fix:
1871      Tested adjoint of gmredi package.
1872      Tests were done with checkpoint47 rather than with latest
1873      checkpoint47f_post since the latter is broken for the adjoint
1874      verification/carbon/ contains both ADM and TLM gradient checks.
1875    Here they are, before they get changed/lost/stolen.
1876    Mostly modif.'s to fix numerical sensitivities.
1877    Gradient checks OK for
1878    - GM_taper_scheme:
1879      * clipping
1880      * ac02
1881      * linear
1882      * glw91
1883      * dm95
1884      * ldd97
1885    - GMREDI_OPTIONS:
1886      * GM_VISBECK_VARIABLE_K
1887      * GM_NON_UNITY_DIAGONAL
1888      * GM_EXTRA_DIAGONAL
1889      * GM_BOLUS_ADVEC
1890    in conjunction with data.gmredi parameters to be checked in
1891    in a few minutes under verification/carbon/code/
1892    
1893    checkpoint47f_post
1894    Merging from release1_p10:
1895    o modifications for using pkg/exf with pkg/seaice
1896      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1897        and SEAICE_EXTERNAL_FLUXES
1898      - pkg/exf CPP options EXF_READ_EVAP and
1899        EXF_NO_BULK_COMPUTATIONS
1900      - usage examples are Experiments 8 and 9 in
1901        verification/lab_sea/README
1902      - verification/lab_sea default experiment now uses
1903        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1904    
1905    checkpoint47e_post
1906    o created a tag prior to creating a branch
1907    
1908    checkpoint47d_post
1909    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1910      at the bottom boundary had an erroneous half slip boundary condition
1911    o added bottom drag and no slip boundary condition capabilities to
1912      oceanic pressure coordinates code
1913    o added new verification experiment global_ocean_pressure, this experiment is
1914      also described in the tutorial section of the manual
1915    checkpoint47d_pre
1916    
1917    checkpoint47c_post
1918    o Added a verification experiment for a global cubed-sphere ocean run
1919      -  verification/global_ocean.cubed32x32x30
1920      -  uses pkg/therm_seaice and pkg/bulk_forcing
1921    
1922    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1923    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1924      when using P-coordinate; only implemented for atmospheric config.
1925    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1926      NOTES: requires option NONLIN_FRSURF to be "#define".
1927    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1928    
1929    checkpoint47b_post
1930    Merging from release1_p9:
1931    o pkg/seaice
1932      - removed GOTO's and added taf directives
1933      - double precision constants to reduce the g77 (Linux)
1934        to F77 (SGI) differences reported in release1_p8
1935    o tools/genmake
1936      - added SGI options
1937    o verification/testscript
1938      - updated to that of checkpoint47a_post
1939    o verification/global_ocean.90x40x15/input/eedata
1940      - modified for SGI f77 compatibility
1941    o verification/lab_sea
1942      - added description of sea-ice model
1943      - added missing matlab routines
1944      - added test of thermodynamics parallelization
1945    
1946    checkpoint47a_post
1947    o new pkg: aim_v23
1948     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1949       for now, keep the same surface forcing as before.
1950     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1951     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1952     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1953    o add diagnostic of surface correction term in monitor output
1954    
1955    o bulk_force and therm_seaice
1956    - Two packages:  bulk_force (Bulk forcing)
1957      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1958    - Earlier integration from Stephaine Dutkiewicz
1959      and Patrick Heimbach.
1960    - Two ifdef statements for compile time,
1961       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1962    
1963    checkpoint47
1964    differentiable version of checkpoint46n_post
1965    o bug fix in quasihydrostaticterms
1966    o * "clean" adjoint code (in terms of extensive recomputations)
1967        can now be obtained for all GMREDI options (i.e. for
1968        - GM_VISBECK_VARIABLE_K
1969        - GM_NON_UNITY_DIAGONAL
1970        - GM_EXTRA_DIAGONAL
1971        - GM_BOLUS_ADVEC )
1972      * However, wrong gradient check problem remains unsolved.
1973      * New CPP options have been introduced for different
1974        tapering schemes
1975    o external_fields_load now part of differentiation list
1976    o pressure needs multiple storing;
1977      would be nice to have store_pressure at beginning or
1978      end of forward_step, e.g. by having phiHyd global (5-dim.)
1979      (NB: pressure is needed for certain cases in find_rho,
1980      which is also invoked through convective_adjustment).
1981    o recomputations in find_rho for cases
1982     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1983    o #define ATMOSPHERIC_LOADING should be differentiable
1984    o ini_forcing shifted to begining of initialise_varia
1985    o Incorporating QNVS line search routines into MITgcm
1986      (this is separate code, and therefore not under pkg)
1987      lsopt/, optim/
1988    o Updated verification/carbon/
1989      - #define GM_VISBECK_VARIABLE_K
1990      - GM_taper_scheme    = 'ldd97'    
1991    
1992    checkpoint46n_post
1993    Merging from release1_p8:
1994    o verification/natl_box:
1995      updating new external_fields_load routine
1996    o New package: pkg/seaice
1997      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1998      The sea-ice code is based on Hibler (1979-1980).
1999      Two sea-ice dynamic solvers, ADI and LSR, are included.
2000      In addition to computing prognostic sea-ice variables and diagnosing
2001      the forcing/external data fields that drive the ocean model,
2002      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2003      The implied surface heat flux is then stored in variable
2004      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2005      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2006      non-local transport term.  Because this call precedes model
2007      thermodynamics, temperature under sea-ice may not be "exactly" at
2008      the freezing point by the time theta is dumped or time-averaged.
2009      N.B.: fairly large differences in accuracy occur across
2010            different platforms/compilers; comparison between
2011            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2012            generated output gives:
2013       T           S           U           V
2014      C D M    c        m  s        m  s        m  s        m  s
2015      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2016      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2017      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2018    
2019      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2020    o GAD:
2021      - generated new common blocks to account for call of
2022        same gad routines with differing traceridentities
2023        (needed to modify tracerIdentity indices in GAD.h)
2024      - generated separate common blocks for case useCubedSphereExchange
2025        (Department of Futurology)
2026      - parameter lists to gmredi_?transport: added tracerIdentity
2027      - added new key indices to tamc.h
2028    o external_fields_load:
2029      - added this routine to TAF list
2030      - needed to make some common blocks global and additional storing
2031        along the same lines as exf package (checkpoint_lev?_directives.h)
2032    o exf:
2033      updated external forcing package
2034      - bug fixes carried over from ecco-branch
2035        (missing OBCS_OPTIONS.h in two routines)
2036      - enable easy to use "no forcing".
2037      - added exf I/O for atmospheric loading
2038      - added exf I/O for runoff data
2039      - transfered scaling between exf <-> MITgcm to exf namelist
2040    o Adding new verification experiment global_with_exf.
2041      This verification experiment is almost identical to the
2042      global_ocean.90x40x15 experiment, except that it uses
2043      the exf (and cal) package instead of the
2044      external_fields_load routine (cf README file).
2045    
2046    checkpoint46m_post
2047    o modified testscript to return -- when there are no lines of "%MON" output
2048    o added new flag "quasiHydrostatic" for QH mode
2049      and new routine quasihydrostaticterms()
2050    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2051      New routine: mom_u_coriolis_nh()
2052    o fixed sign of non-hydrostatic metric terms in u and v equations.
2053      Depend on correct sign of gravitySign.
2054    o added work.pc* to .cvsignore in aim directories using ifc
2055    o introduced flag for controllin non-hydrostatic metric terms
2056    o removed gravitySign from PARM04
2057    o switched to g77/ifc from pgf77 in aim experiments
2058    
2059    checkpoint46l_post
2060    o made convective adjustment work with pressure coordinates:
2061     - changed the direction of k-loop in convective_adjustment.F for the
2062       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2063     - adjusted the reference pressure k-index in convective_adjustment.F
2064     - adjusted the convection condition in convect.F (in analogy to
2065       calc_ivdc.F)
2066     - convective_adjustment no longer computes anything on the halos
2067     - removed the warnings about negative salinity from find_rho.F and
2068       find_alpha.F; instead the new routine look_for_neg_salinity, called
2069       at the beginning of find_rho, find_alpha, and find_beta, does a
2070       check of the entire slice, if CPP-option
2071       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2072    checkpoint46l_pre
2073    
2074    checkpoint46k_post
2075    o fixed the verification/global_ocean.90x40x15 experiment:
2076     - new bathymetry (the world according to A., JMC, and M.)
2077     - new initial fields and forcing fields (*.bin files)
2078     - new POLY3.COEFFS (for the next release one should switch to a full
2079       equation of state: JMD95P or MDJWF)
2080     - fixed several errors and redundancies in the data file
2081     - experiment uses looped cells
2082     - added matlab directory with diagnostic scripts for plotting of output
2083    
2084    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2085     - read AIM physics parameters from a file (data.aimphys)
2086     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2087    
2088    checkpoint46j_post
2089    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2090    o move wVel computation at the end of the time step, in S/R integr_continuity
2091    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2092    o update timeave pkg for wVel diagnostic.
2093    checkpoint46j_pre
2094    
2095    checkpoint46i_post
2096    o Clean up AIM package (and keep the results unchanged):
2097      include CPP_OPTION and use IMPLICT NONE in all routines ;
2098      declare all the variables _RL ; use _d 0 for all numerical constants.
2099      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2100    
2101    checkpoint46h_post
2102    o cleaned up the use of rhoNil and rhoConst.
2103      - rhoNil should only appear in the LINEAR equation of state, everywhere
2104        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2105        and the dynamical equations are all divided by rhoConst
2106    o introduced new parameter rhoConstFresh, a reference density of fresh
2107      water, to remove the fresh water flux's dependence on rhoNil. The default
2108      value is 999.8 kg/m^3
2109    o cleanup up external_forcing.F and external_forcing_surf.F
2110      - can now be used by both OCEANIC and OCEANICP
2111    checkpoint46h_pre
2112    
2113     Added code to convert surface volume flux (fresh water) into
2114     a mass flux when using P coordinates in the ocean (OCEANICP).
2115     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2116    
2117    checkpoint46g_post
2118    o Include a new diagnostic variable phiHydLow for the ocean model
2119      - in z-coordinates, it is the bottom pressure anomaly
2120      - in p-coordinates, it is the sea surface elevation
2121      - in both cases, these variable have global drift, reflecting the mass
2122        drift in z-coordinates and the volume drift in p-coordinates
2123      - included time averaging for phiHydLow, be aware of the drift!
2124    o depth-dependent computation of Bo_surf for pressure coordinates
2125      in the ocean (buoyancyRelation='OCEANICP')
2126      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2127        Theta, Salinity, and Pressure in the parameter list. This routine is
2128        presently contained in find_rho.F. This routine does not give the
2129        correct density for 'POLY3', which would be a z-dependent reference
2130        density.
2131    o cleaned up find_rho
2132      - removed obsolete 'eqn' from the parameter list.
2133    o added two new verification experiments: gop and goz
2134      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2135    checkpoint46g_pre
2136    
2137    checkpoint46f_post
2138    o Enable tangent linear (forward mode) gradient checks:
2139      - extended active file handling to g_... files
2140      - added TANGENT_SIMULATION to theSimulationMode
2141      - extended grdchk package accordingly
2142    o added tangent linear setup in verification/carbon/code_ftl
2143    o added adjoint setup in verification/front_relax/code_ad
2144    
2145    checkpoint46e_post
2146    o Added new equation of state -> MDJWF
2147      - EOS of McDougall et al., 2002, JAOT, submitted
2148      - caveat: the equation of state is only valid for a smaller (more
2149        realistic?) range of values than JMD95P/Z and UNESCO
2150      - added masks to the calculation of pressure in store_pressure
2151      - added more check values for density in check_eos (ini_eos.F), some of
2152        the old check values are out of the range of the MDJWF-eos, so don't
2153        expect perfect matches for those
2154    checkpoint46e_pre
2155    
2156    checkpoint46d_post
2157    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2158      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2159      case of pressure coordinates. eosType='JMD95Z' in
2160      combination with buoyancyRelation='OCEANICP' now causes an error.
2161    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2162      in find_alpha/beta.
2163    checkpoint46d_pre
2164    
2165    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2166      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2167    
2168    checkpoint46c_post
2169    o Changes necessary for ocean in p-coordinates
2170     -  Added new buoyancy relation = 'OCEANICP'
2171     -  Added new parameters = gravitySign (this used to be contained inside
2172        the factor dRdZ which I added when we first switched to R coordinates).
2173     X GM/Redi is not compatible (yet)
2174     X bottom drag and no-slip need to be debugged.
2175    checkpoint46c_pre
2176    
2177    checkpoint46b_post
2178    o Added new equation of state -> JMD95Z and JMD95P
2179      - EOS of Jackett and McDougall, 1995, JAOT
2180      - moved all EOS parameters into EOS.h
2181      - new routines ini_eos.F, store_pressure.F
2182    o Added UNESCO EOS, but not recommended because it requires
2183      in-situ temperature (see JMD95)
2184    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2185      unesco.f to be used with POLY3
2186    checkpoint46b_pre
2187    
2188    checkpoint46a_post
2189    o Added (atmospheric) pressure loading
2190      - new field in FFIELDS.h, etc...
2191      - new cpp flag ATMOSPHERIC_LOADING
2192    o Changed hFacC to _hFacC in calc_phi_hyd.F
2193    o Added SHORTWAVE_HEATING to some files for consistency
2194    checkpoint46a_pre
2195    
2196    checkpoint46
2197    further merges from release1_p5
2198    o new ctrl package
2199      - adopted from ECCO environment to enable optimization
2200      - added Eliassen Palm fluxes to controls
2201    o added Eliassen Palm flux controls to gradient check package
2202    o cost package
2203      - Compatible with new ctrl package
2204      - added Eliassen Palm cost hooks
2205      - modif's of existing cost functions
2206    o Adjoint-related bug fixes in kpp:
2207      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2208      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2209    o autodiff package
2210      - flow directives:
2211        + new for S/R do_the_model_io
2212        + enhanced for S/R checkpoint
2213        + new gmredi.flow
2214      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2215        disable adcommon.h/g_common.h by default.
2216      - fixed problem for adjoint of global_max
2217    o modified verification/carbon/
2218    o New setup for adjoint of global_ocean
2219    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2220    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2221    o incorporated hooks for sponge layer code (external_forcing.F)
2222    
2223    checkpoint45d_post
2224    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2225  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2226    (affects plume_on_slope "cg2d" output)    (affects plume_on_slope "cg2d" output)
2227    o add new parameter deltaTfreesurf for free-surface time stepping
2228    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2229  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2230  o change phiMin in exp1 (to agree with documentation)  o change phiMin in exp1 (to agree with documentation)
2231  o add new flags:  o add new flags:

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