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revision 1.27 by heimbach, Fri Jun 9 03:13:39 2000 UTC revision 1.620 by mlosch, Fri Mar 3 10:21:29 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 move balancing of fluxes before the call of external_forcing_surf
8    o seaice:
9      - correct units of turning angles (now they are really in degrees)
10      - move computation of GWATX/Y out of main routine into dynsolver
11      - initialize GWATX/Y in seaice_init
12    o Apply mask on Fresh-Water flux (needed for SSH forcing).
13      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
14    o seaice: add runtime flags for turning angles (default to zero)
15    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
16      and trend from exf forcing and ctrl control adjustments
17    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
18      (since checkpoint57x_post)
19    o change the default rotation period to 86164.s = the Earth rotation
20    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
21      and based on a reference stratification. Tested within hs94.cs-32x32x5.
22    o seaice advection: add code for choosing between the default (2nd order
23      central differences) and multiDim advection schemes provided by
24      pkg/generic_advdiff
25    o seaice:
26      - removed all references to SEAICE_GRID.h fields from
27        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
28        (cubed-sphere configuration will change a little)
29      - grid computations in seaice_init are obsolete now.
30      - cleaned up code a little so that is easier to read (hopefully).
31      - added new (better?) discretizations of default advection and diffusion
32        (turn on with SEAICEuseFluxForm)
33      - replace 1 in 3d global fields by kSurface in growth.F
34      
35    checkpoint58a_post
36    o seaice:
37      - bug fix in advect.F
38    o shelfice:
39      - separate shelfice load anomaly from pload (breaks with time
40        dependent forcing), => introduce constant field shelficeLoadAnomaly.
41        Its default is 0., but it may be computed more cleverly from (unknown)
42        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
43        done offline. A good approximation of the pressure load anomaly is
44        necessary to avoid large initial adjustment processes underneath
45        deep-reaching shelfice.
46      - small fix in ISOMIP shelfice_thermodynamics
47      - add more sophisticated thermodynamics of Hellmer (1989), this is
48        now the default
49      - give a few constants more intuitive names
50    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
51      if bulk formulae are used in long integration (especially EmPmR). Turn
52      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
53      if balancePrintMean, the imbalance that is substracted is printed to
54      STDOUT.
55    o fix bug (typo) in obcs_apply_eta.F
56    o add a new package shelfice which enables us to model the circulation
57      underneath shelf-ice with draughts of hundreds of meters.
58     - works
59     - to do: + include improved thermodynamics
60              + check whether kSurfC (from model/inc/SURFACE.h) can be used
61                instead of new field kTopC
62              + can we use topoFile, Ro_surf and existing code in ini_depth.F
63                instead of new field R_shelfIce and new code in ini_depth.F
64                and ini_mask_etc.F?
65              + adjust vertical mixing schemes?
66    o seaice pkg:
67     - add a cpp-flag to include a simple formula for a salinity dependent
68       freezing point of sea water at the surface
69     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
70       meridional stresses are now different (and hopefully correct)
71    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
72       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
73       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
74    o pkg/diagnostics: add options and parameters for regional-statistics
75       diagnostics ; define regions by reading a region-mask from a file
76       (might add other options later)
77    o pkg/bulk_force:
78     - add option and parameters to use AIM surface-flux formulae.
79     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
80       others forcing fields (defined in PARM05, parameter file "data") are loaded
81       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
82     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
83     - use the right EXCH call for uwind,vwind (to work on CS-grid).
84     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
85       and parameters (note: calcWindStress replaces .NOT.readwindstress).
86     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
87    
88    checkpoint58
89    o add "--embed-source" option to genmake2 which, when the supporting
90      tools can be compiled (as determined by genmake2) will turn on the
91      embed_files package which then embeds the entire MITgcm source code
92      (*.[fFhc] + Makefile) used for the build within the executable
93      - requested by CNH but off by default
94      - adds a paltry <9MB to the mitgcmuv executable in most cases
95      - only writes the output when useEMBEDSRC in eedata is true
96    o clean up 3-dim. relaxation codes:
97      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
98      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
99      * Thanks to Tom Haine for testing!
100    
101    checkpoint57z_post
102    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
103      affects output (@ truncation level) of exp. plume_on_slope ; updated.
104    o fix the pickup behavior for obcs in combination with ptracers
105    o fix a bug in ptracers_external_fields_load
106    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
107      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
108    o transfered surface NH pressure to eta field (if exactConserv).
109    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
110         and update lab_sea output.txt file.
111    o completing 3-dim. relaxation code: additional term
112         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
113      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
114      * At compile time, in "EXF_OPTIONS.h" set
115          #define  ALLOW_CLIMTEMP_RELAXATION
116          #define  ALLOW_CLIMSALT_RELAXATION
117      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
118          tauThetaClimRelax3Dim = 15552000.0,
119          tauSaltClimRelax3Dim  = 15552000.0,
120      * 3 cases:
121          1) Use a constant-in-time 3-dim. field
122          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
123          3) Real-time relax. to time-evolving prescribed field
124    o Adding Laplacian-type smoothness constraint on
125      initial and boundary (forcing) controls (ic, bc)
126      * enable at compile-time via
127        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
128      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
129      * Absolute scale somewhat unclear so far
130      * no area weighting was included since no other cost term does so far
131    
132    checkpoint57y_post
133    First step for a NLFS adjoint
134    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
135    o new init. routines for calc_r_star, calc_surf_dr
136    o still need to deal with ini_masks_etc
137    o testreport seemed happy
138    checkpoint57y_pre
139    
140    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
141    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
142    o add new offset feature to offline pkg (plus minor cleanup)
143    o cfc fixes for final year of integration
144    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
145      be in GCHEM_OPTIONS).
146    
147    checkpoint57x_post
148    o fix testreport Pb in multiple test experiment.
149    o cleanup our namelist syntax in verification:
150      - make it more F95 standards compliant (some work still needed)
151      - allows the vast majority of our tests to work with gfortran
152    o Non-Hydrostatic:
153     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
154     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
155    o Allow to apply AB on T,S rather than on AB(gT,gS):
156     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
157     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
158       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
159     - need a "clever" read_pickup to restart from the other AB formulation
160    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
161    o remove some unused variables (reduces number of compiler warnings)
162    o adjoint
163      * Disable useVariableViscosity for adjoint for time being
164        (there are a number of extensive recomputations)
165      * Initialize certain variables needed for adjoint
166    
167    checkpoint57w_post
168    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
169                 fix the singleCpuIO RS version of MDSWRITEFIELD
170       and add a WARNING if using globalFiles=T with multi-processors.
171    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
172      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
173    o tracer advection scheme:
174      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
175       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
176       was not very convenient).
177      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
178       (further tests needed for the implicit DST & Flux-Limiter schemes).
179    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
180      and sRef for convenience, handy, when you want to initialize
181      ptracers in a large domain with a constant non-zero value. Also,
182      untangle ptracers_init.F a little.
183    
184    checkpoint57v_post
185    o change dome exp. to use variable viscosity in side-drag terms.
186    o remove all the files from the cfc_offline test since they are now
187      incorporated into tutorial_cfc_offline which has been producing
188      identical results for a few days of testing
189    o add new parameter: sideDragFactor to enable half-slip-side BC
190      and change side-drag S/R to use viscosity from mom_calc_visc
191      (can switch back by setting sideDragFactor=0.); affects results at
192      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
193       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
194    o vorticity & strain are now computed without masking, to account for
195      no-slip-side BC in variable viscosity calculation ; mask is applied
196      anyway later on, before computing advection/coriolis terms.
197    o modify exp4 to test new obcs support for reading from external files
198      and for passive tracers
199    o fix behavior of ptracers_monitor when monitor output is written to a
200      netcdf-file; still not independent of monitor.F (writes in the same
201      file).
202    o change default value of tRef (put a uniform, meaningful value for ocean
203      & atmos) and initialize sRef (was missing, as Martin mentioned).
204    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
205      to be proportional to enstrophy dissipation length.  Thus,
206       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
207      This is now consistent with Smagorinsky and with the manual.
208    
209    checkpoint57u_post
210    o OBCS and PTRACERS: add open boundary support for passive tracers
211      - either use homogenous (pseudo) v.Neumann conditions or prescribe
212        OB-values from file; this is not different from the way theta and salinity
213        are treated
214      - however, Orlanski-radiation conditions are not supported, and the model
215        will stop if you use pTracers and Orlanski at the same time.
216      - beefed up the rountine obcs_external_fields_load: now only those open
217        boundary values are overwritten with values from files for which there
218        are really files, otherwise the OB-fields remain untouched. This makes
219        it possible to use different OBs at different ends of the domain (as
220        with EXF)
221    o reduce number of exch calls in shap_filt (s2).
222    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
223      truncation level) 4/5 MLAdjust test results (11&12 digits match).
224    
225    checkpoint57t_post
226    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
227    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
228      same truncation, independent of the face number: affects affects several
229      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
230    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
231      note that biharmonic viscosity + no-slip was not tested in any experiment.
232    o fix bug in non-linear free-surf side-drag ; generate new output for
233      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
234    o make mnc honor the writeBinaryPrec flag for most kinds of output
235    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
236    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
237      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
238    o add brackets in multi-terms sum to get same truncation, independent of
239      the face number (manage to get exactly same value of gU,gV at the cs-edge)
240      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
241    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
242      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
243      a maximum grid-scale Reynolds number.  Also, changes all length calculations
244      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
245      Suggested values of viscosity parameters found in mom_calc_visc.
246      Many new viscosity diagnostics available.
247    
248    checkpoint57s_post
249    o Add clearing-house for viscosity calculations, mom_calc_visc and
250      correct numerous bugs in LeithD and Smagorinsky discretizations.  
251      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
252      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
253      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
254      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
255      The Strain-Tension form is now called with useStrainTensonVisc=.true.
256      ViscAhStrain and viscAhTension are now retired.
257    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
258    o In response to JMC's bug report, genmake2 now ignores any soft-links
259      that it finds in the *current* directory when searching for files.
260      Soft-links found in any other source directories will still work as
261      they did before.
262    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
263      a C routine to unlimit the stack size
264    o mnc-ify pkg/aim snapshot vars
265    o mnc-ify pkg/land as requested by Daniel
266    o various changes to mnc including:
267      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
268      - output can now be grouped so that all files within a group
269          change the ITER portion of their names in lock-step together
270      - can now read ("global") PER-FACE (in addition to PER-TILE) files
271          and works with both EXCH1 and EXCH2 (but needs more testing)
272      - writing works for all verification test cases w/ g77 on Linux
273    
274    checkpoint57r_post
275    o make MNC variable initialization happen earlier
276    o add diagnostics for (almost) each term of the momentum Eq.
277    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
278    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
279    o remove MINIMAL_TAVE_OUTPUT option ;
280      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
281    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
282      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
283    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
284    o add time-dependent SST, SSS control
285    o cost terms in ecco/ modularized (new cost_generic.F)
286    o cost_averages routines are modularized (new cost_averagesgeneric.F)
287    o new infrastructure for seaice model vs. obs misfits in seaice/
288      * driver from the_main_loop.F is seaice_cost_driver.F
289      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
290      * gradient check in Exp. 6a of natl_box_adjoint/
291    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
292      (see README file)
293    
294    checkpoint57q_post
295    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
296    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
297      - bug was reported by Jean-Michel and Ian Fenty
298    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
299      update exp. cpl_aim+ocn output.
300    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
301      Needed for high-res. runs with large global files
302      to be able to limit tapelev size
303    o Changed some tests for adjoint:
304      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
305      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
306      * global_ocean.90x40x15/ back to default 3-level checkpointing
307    o Modifications to enable scripted COMMON to MODULE conversion
308      * verification/OpenAD/code/ has necessary scripts and description;
309      * converts, compiles and runs successfully;
310    
311    checkpoint57p_post
312    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
313    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
314      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
315    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
316    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
317      (was already the case for dissipation with mom_vecinv,
318       and also the case for grad.PhiHyd when staggered-timeStep)
319      This will allow to put dissipation out-off the AB time-stepping.
320     Unfortunately, affects truncation error. Update output of exp. that "fails"
321      (cg2d matching number) and leave the others for later: front_relax(10),
322      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
323      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
324    
325    checkpoint57o_post
326    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
327      (2) its ready to be documented during the 20050801 DocFest
328    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
329      for ideal_2D_oce and lab_sea on linux_ia32_g77
330    o set to #undef CTRL_SET_OLD_MAXCVARS_30
331      in global1x1_tot/code_seaice_adj to access indices 32, 33
332      (worth another tag)
333    
334    checkpoint57n_post
335    o adding precip control xx_precip 32
336    o adding swflux control xx_swflux 33
337    o Replacing 10 forcing penalty cost routines by 1 generic.
338    o Implementing partitioning in time-mean and variable adjustment
339      for atmos. state.
340    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
341    o in natl_box_adjoint:
342      * updated exp 1 to 10
343        (but does not have time-mean vs. variable split results yet)
344    o updated global1x1/*_seaice_adj/
345      to incorporate latest changes
346    o enable useSingleCpuIO for mdsio vector routines
347      (applies in particular to tapelev I/O)
348    o removed inefficient K-loop in all active_file*control*.F
349    
350    checkpoint57m_post
351    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
352      and advect_cs (use EXCH-2 and standard cs-32 grid files).
353    o pkg/exch2: filling of face-corner halo regions is optional
354      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
355    
356    checkpoint57l_post
357     tag before updating tutorials (pre-release-2)
358    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
359       for output and interpolation of input fields onto model grid)
360    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
361       Affects results of exp. rotating_tank ; update output.txt.
362    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
363          and taking the square quantity and/or using a fraction-weight field.
364    o fix aim_diagnostics_init.F mate numbers.
365    o add mnc output capability to diagnostics/diagstat and update
366      our cvsignore files for the ACSII output generated
367    
368    checkpoint57k_post
369    o lab_sea now uses diagnostics package and provides a suite of
370      new EXF diagnostics output.
371    
372    checkpoint57j_post
373    o exf
374      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
375        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
376        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
377      * extended diagnostics output
378        - now includes all EXF variables
379        - hs, hl moved to common block
380        - separate S/R for diagnostics, called after ctrl vector is added
381        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
382        - EXFqnet contains true Qnet (i.e. includes qsw)
383      * updated verif. lab_sea, global_with_exf
384      * Rearranging hflux (exf_mapfields -> exf_getforcing)
385        to ensure that diagnostics sees a true EXFqnet
386    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
387    o diagnostics pkg: change pointers so that 1 diagnostic can be used
388      several times with different frequencies.
389    o mnc-ify the thsice package as requested by Daniel Enderton
390      - the monitor--MNC output needs work
391      - many attributes need to be added (most are currently blank)
392    o mnc-ify theaim_v23 package as requested by Daniel Enderton
393      - many attributes need to be added (most are currently blank)
394    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
395    o add Sadourny like discretization to the 4th.O vorticity advection scheme
396    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
397      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
398         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
399    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
400     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
401    
402    checkpoint57i_post
403    o Diagnostics package was changed: diagnostic allocation is now deactivated
404      by setting an empty file name in the namelist (used to be by setting 0 frequency)
405    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
406      add 1rst Order upwind vertical Shear.
407    o add a quick fix for A/B checkpointing in OFFLINE mode
408    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
409      end-run around the C/Fortran linking horror in eesup/src/timers.F
410    o added pkg/runclock: allows user to terminate run based on wall clock
411    o added non-hydrostatic scaling parameter: nh_am2
412    o pkg/my82: futile attempt to make results compiler-independent by adding
413      some "_d 0", etc. no effect.
414    o for mnc output, fill the 'T' coordinate var with myTime and create a
415      separate 'iter' variable for iteration count
416    o pkg/diagnostics:
417      add new capability: output of Global/Regional & per-level statistics ;
418      tested against monitor output (including land & thSIce) on various exp.
419    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
420    
421    checkpoint57h_done
422      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
423      data.diagnostics, data.gchem, data.ptracers) is done.
424    
425    o pkg/diagnostics: prepare for Global/Regional statistics.
426      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
427    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
428      and rename it: DIFFERENT_MULTIPLE
429    
430    checkpoint57h_post
431    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
432    o pkg/diagnostics: change output frequency, now in seconds (instead
433      of Nb of iterations). This requires to change data.diagnostics.
434    checkpoint57h_pre
435    
436    o in mnc, let the user create the output dir if both mnc_outdir_date
437      and mnc_outdir_num are false
438    o add fflags() to pkg/diagnostics which allows one to specify, on a
439      per-file basis, the file precision [default behavior is unchanged]
440    o added diagnostics to pkg/kpp, including computation of mixed layer
441      depth based on a temperature/density criterion
442    o updated verification/natl_box to test the new pkg/kpp diagnostics
443    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
444    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
445    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
446      not mnc -- this mistake was found by JMC and is now corrected
447    
448    checkpoint57g_post
449    o add Adams-Bashforth 3rd Order time stepping:
450      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
451      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
452    checkpoint57g_pre
453    
454    o make lambda[Theta,Salt]ClimRelax spatially varying
455      (default remains spatially uniform constant based on tau)
456    o added new control variables
457      * init. uVel, vVel, etanN
458      * lambda[Theta,Salt]ClimRelax
459    o separate masks used for ctrl_pack/unpack 'from write_grid' output
460      (suggested by G. Forget)
461    
462    checkpoint57f_post
463    o add parameter "baseTime" = model base time = time at iteration zero
464      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
465      account for baseTime shift
466    o move Coriolis arrays from PARAMS.h to GRID.h
467    checkpoint57f_pre
468    
469    o mnc-ifying the seaice package
470    o introduced an alternative length scale calculation for use in the limiting
471      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
472    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
473    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
474      as well as grad(vort3).  Made it compatible with both approximate form
475      for the cubed sphere and full form of these gradients.  Added flag
476      useFullLeith to select between approximate and full form.  
477    o add "d0" in getcon.F to reduce differences between compilers/platforms
478      update output.txt of exp. fizhi-gridalt-hs
479    o change port_rand funtion to allow to set the seed.
480    o fix obscure MNC bug involving conversion between reals and integers
481      - it caused no problems with certain (eg. gcc, ifc) compilers but the
482        new version is now more standards-compliant
483    o adjoint-related modifications
484      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
485      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
486      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
487    
488    checkpoint57e_post
489    o Adding eddy stress controls a la Ferreira et al.
490    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
491    
492    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
493      update output.txt of exp. fizhi-gridalt-hs
494    o add more "Z" dimensions and associated coordinate vars to MNC
495    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
496    o parameter calendarDumps: when set, approximate months (30-31 days) and years
497      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
498      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
499      months and years.  Requires pkg/cal.
500    o diagnostics: add pickup functionality
501      - off by default for backwards compatibility
502      - current version only uses MDSIO -- MNC will be added
503    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
504    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
505    
506    checkpoint57d_post
507    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
508    o modify verification/ideal_2D_oce so that it tests the creation of mnc
509      output from the diagnostics package
510    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
511    o make genmake2 more portable by using ".$FS" instead of ".f" for more
512      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
513    o add coordinate variables to the MNC output from the diagnostics package
514    o change MNC-flags default value: true when useMNC=TRUE
515    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
516      the ability (off by default) to read the grid information using MNC
517    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
518    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
519    o do snap-shot diagnostics at the middle of the time-interval (instead of
520      at the end).
521    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
522      new test for AIM with thSIce + slab-ocean
523    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
524    o move state variable diagnostics to the beginning of the time step ;
525      (note: still needs some work specially for snap-shot diagnostics)
526      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
527    
528    checkpoint57c_post
529    o Change testing option (-ieee) to get closer agreement between g77 & ifort
530    o generate new output.txt files on faulks with g77 & the new -ieee option
531    checkpoint57c_pre
532    
533    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
534      update output.txt of exp. global_ocean.90x40x15
535    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
536      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
537    o add saltFlux(+File) forcing capability with periodicExternalForcing
538    o allow to use pkg diagnostics for GM-Redi & ThSIce output
539    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
540    o improvements for the MNC output from DIAGNOSTICS:
541      - correct handling of the unlimitied dimension
542      - all dims now have associated coordinate variables
543      - variables located at U, V, and Corner ("Z") points are now written
544        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
545        *all* data points are output
546    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
547    o added pkg/seaice/seaice_monitor.F
548    o mdsio_readfield.F can now read files visible only to master MPI process.
549    o pkg/seaice: some test code for ice-modified ocean stress
550    o exf_getffields interpolation defaults to bilinear for all scalar forcing
551      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
552      spurious negative numbers for precipitation and humidity.  Will cause
553      some small numerical differences for integrations using pkg/exf/exf_interp.F.
554    o pkg/ctrl/
555      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
556        May be enabled via doPackDiag
557      *  introduce z-scaling of
558         + gradient (doZscalePack) and
559         + control (doZscaleUnpack)
560    o pkg/mdsio/
561      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
562      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
563    
564    checkpoint57b_post
565    o simplify options in diagnostics_fill arguments (remove weird combinations)
566    o fix MNC coordinate variables so that they now contain per-face index
567      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
568      general, EXCH2 grids are only aligned to a "local" coordinate system
569    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
570    o Implement instantaneous output within pkg diagnostics:
571      setting a negative frequency in data.diagnostics produces
572     "snap-shot" output (as opposed to time-average if freq > 0)
573    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
574      NOTE: change ptracer diagnostics name: use 2 characters to work with
575            more than 9 tracers. Add also diagnostics of advect & diffus flux.
576    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
577      becomes the coordinate variable for the 'T' dimension
578    o add CF-style coordinate variables to MNC
579      - just a first cut:  numbers are meaningless on the cubesphere and
580        missing along the T axis but otherwise it works!
581    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
582    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
583    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
584      this is based directly on what the model compute, so that the content of
585      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
586    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
587    o clean up build options files for SunOS, in particular
588      - remove -traditional from xmakedepend
589      - change -xarch=v9 to -xarch=native for f77
590      - restore use of make (not gmake)
591      - add CC=gcc if using g77
592    o changes per discussion of AM, JMC, & EH3 today:
593      - move redundant "grid" variables out of "state" -- in preparation of
594        creating proper CF-style coordinate variables and in recognition
595        that any/all grid variables can be easily copied (eg. w/NCO) from
596        the grid files into any of the other NetCDF files
597      - *always* output grid variables with MDSIO (this will eventually be
598        changed)
599      - output MNC grid file if useMNC is true
600    o every instance of _END_MASTER() has been found and replaced with
601      _END_MASTER( myThid ) in order to satisfy certain picky Sun
602      preprocessors
603    o re-arrange diagnostics pkg initialisation:
604     - allow each package to extend the available diagnostics list
605     - add some checking and fix small problems (multi-threaded, ...)
606     - new S/R diagnostics_fill (replace fill_diagnostics):
607       look through the short list of active diag. (instead of the long list)
608       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
609    
610    checkpoint57a_post
611    o this set of changes restores TAMC compatibility
612      tested for global_ocean.90x40x15 adjoint on trough
613      (what a pain)
614    
615    checkpoint57a_pre
616    o some modifs in tools/build_options for sunos
617    o call ctrl_pack for ctrl at end for optimcycle=0
618    
619    checkpoint57
620    o add horizontal bi-harmonic viscosity for vertical velocity
621      - new parameter viscA4W (defaults to viscA4)
622      - affects only non-hydrostatic code
623      - to be done: no-slip lateral boundary conditions
624    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
625    o implement Implicit Vertical advection for pTracers
626    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
627      (implemented also for implicit vertical diffusion & advection)
628    o OBCS: extend application of tracer open boundary conditions
629      to a strip beyond the boundary of width Olx/Oly
630    o add call monitor to TAF set of required calls (flow directives)
631      and include in natl_box_adjoint
632    o untangle a few ifdefs related to cost, ctrl, autodiff
633      untangel a few ALLOW_ECCO_OPTIMIZATION
634    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
635      (theta2, salt2 in ecco_cost_weights)
636    
637    checkpoint56c_post
638    o OBCS as control variables
639      - update ctrl_ad_diff.list, obcs_ad_diff.list
640      - remove balance of obcs controls from default
641      - fix index bug nobcs in ctrl_init
642      - fix dummy fields filen in ctrl_pack
643      - add dummy weights for obcs
644    o lsopt: comment out fort.94 output
645    o optim:
646      - remove unnecessary header files
647      - adjusted namelists
648      - add xerbla.F to Makefile
649    o exf:
650      - multiple modifications of exf_check_range
651      - unit change in exf_init_runoff from [m/year] to [m/s]
652    o mdsio:
653      - i/o-vector change debugLevel from debLevA to debLevB
654    
655    checkpoint56b_post
656    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
657      is called from DO_THE_MODEL_IO
658      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
659      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
660      - clean up PTRACERS_WRITE_TIMEAVE a little
661    o add another verification experiment that tests both the cfc-pkg and
662      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
663      reactive tendencies treated inline with regular timestepping
664    o testreport previously did a lousy job of comparing small numbers, so
665      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
666      implemented in the little c-progam tmp_cmpnum.c which is embedded in
667      testreport.
668    o ptracers_monitor: bug fix for MPI
669    
670    checkpoint56a_post
671    o GCHEM: finish reorganizating the package
672      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
673        (introduces another 3D-array for each passive tracer, but only if
674        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
675        gchemTendency is not needed because the timestep is done separately)
676      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
677      - GCHEM is now---more or less cleanly---separate from PTRACERS
678      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
679        so clear to me how that should be done in a general way.
680    o CFC: improve formatting of output in CFC_ATMOS
681    o PTRACERS:
682      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
683        that ALL experiments with ptracers enable can be checked. This makes
684        GCHEM_MONITOR obsolete.
685      - include a runtime parameter PTRACERS_monitorFreq that defaults to
686        monitorFreq
687      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
688    o add PTRACERS (PTR0[1-5]) to testreport output
689    o exf_check_range:
690      * default changed to .TRUE.
691      * will check values for niter0 if debLevA, every timestep if debLevB
692      * STOP in exf_check_range if 'out of range'
693      * range chosen generous to allow for potential extema
694      TBD: a version with stricter range
695           permitted range would be runtime parameters
696    o GMredi:
697      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
698      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
699      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
700    o GCHEM:
701      - move call to GCHEM_FORCING_SEP, so that it is now called before
702        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
703      - introduced a useGCHEM runtime flag and applied it everywhere.
704      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
705        this flag is now only visible within GCHEM-pkg routines.
706      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
707        be replaced by a 3D array that is computed before thermodynamics; for
708        this, the tracer ID iTracer had to be included into the parameter list
709        of ptracers_forcing
710      - set up forward_step to call gchem_forcing, that will replace
711        gchem_forcing_int in ptracers_forcing
712      - cleaning up
713    o small cleaning of exch2: remove files that are also in eesupp/src
714    
715    checkpoint56
716    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
717    o mnc: cleanup "full" files--fixes out-of-memory problem
718    o ECCO-GODAE
719      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
720      * fully merged and updated from SIO code
721        windstress sign change affects
722        - exf_inscal_[u/v]stress
723        - sign of xx_tau[u/v] adjustments
724        - signs in cost_scat
725      * ctrl_get_gen: avoid update of tau[u/v] for first few days
726      * natl_box_adjoint updated and compressed
727      * 2-level checkpoint switch added
728        (tested in EXP. 1 of natl_box_adjoint)
729      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
730    o SVD
731      * first complete, non-hacked version for SVD calculations
732      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
733        performed via direct access files admtlm_vector.it????
734        (via ctrl_[un]pack)
735      * optimcycle is used for ARPACK iteration counter
736        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
737      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
738        and add linear transforms where necessary
739      * controls are initial/final SST, SSS (can be extended; need to check
740        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
741    o mdsio: filename info to both stderr, stdout
742    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
743      from sign change
744    
745    checkpoint55j_post
746    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
747      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
748    o add consistent build directories and .cvsignore files to verification
749    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
750    o make all subroutines 30 or less characters in length for certain older
751      compilers to work (a thorough search only turns up two routines in
752      pkg/ptracers)
753    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
754      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
755    
756    checkpoint55i_post
757    o change arrays for total vertical diffusivity (2.D if explicit,
758      3.D if implicit) ; each ptracer uses its own background value.
759    o added mnc/NetCDF output capability to ocn_compon_interf
760      - added bits to verification/cpl_aim+ocn so that it can run on
761        ITRDA and other clusters without the mpirun "-wd" option
762    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
763      configuration
764    o give MNC the ability to create additional files rather than
765      exceeding a specified file size limit "MNC_MAX_FILESIZE"
766      - the default is just less than 2GB which is a practical limit
767        on many systems
768    o Compute the non-local term using either KPP vertical diffusivity (=default)
769       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
770    
771    checkpoint55h_post
772    o add verification test "vermix"
773    o remove all the *_ioinc flags and replace with the single global
774      outputTypesInclusive flag
775    o allow to set a vertical profile of vertical diffusivity for T & S
776    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
777    o useMNC moved from data.mnc to data.pkg
778    
779    checkpoint55g_post
780    o Renaming carbon AD experiments to comply with testreport conventions
781    o Updating adjoint of Held-Suarez hs94.1x64x5
782    o Fixing directives for non-ECCO forward_step, after ECCO directives
783      have been fixed to avoid recomp. of do_oceanic_phys
784      Works well for global_ocean.90x40x15,
785      but recomp. issue remains for carbon
786    o Updating adjoint output for natl_box_adjoint after
787      pkg/ecco has been modified (see taga c55d_post)
788    
789    checkpoint55f_post
790    o rename to timeave_init_fixed
791    
792    checkpoint55e_post
793    o some delicate re-shuffle of store directives to avoid one
794      extra call of do_oceanic_physics
795      affects ecco_the_main_loop.F, do_oceanic_physics.F
796      checkpoint_lev1_directives.h
797    o NB: this may break global_ocean adjoint temporarily,
798      but it is clear how to fix it. Will do later, need this now.
799    
800    checkpoint55d_post
801    o ECCO specific cost function terms (up-to-date with 1x1 runs)
802    o ecco_cost_weights is modified to 1x1 runs
803    o modifs to allow observations to be read in as
804      single file or yearly files
805    o enable to read exf forcing fields as either
806      single file or yearly files (flag useExfYearlyFields)
807    checkpoint55d_pre
808    
809    o switch between 2-level and 3-level checkpointing
810    o add ability of MNC to write local and "partial" (eg. 2D slices where
811      the full 3D field is never actually stored) arrays to NetCDF files
812      with the correct (that is, the complete multi-dimensional) set of
813      array indicies
814      - used in mom_vecinv() to write the diagFreq output
815      - tested (demonstrated) in verification/aim.5l_cs
816    o further mnc-ification
817      - add verification/lab_sea to the list with mnc setups
818      - fix undefined mnc v-names in cd_code
819      - add kpp to mnc output (both snapshot and timeave)
820    o non-hydrostatic code
821      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
822        in calc_gw.F
823      - defaults to viscAh
824      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
825        friction or Leith) in non-hydrostatic mode, as long as there is
826        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
827    o pkg/cost
828      extend simple cost functions to treat time mean quantities
829      (T,U,V) via cost_accumulate_state from cost_tile
830    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
831        be 2 times larger than the minimum size the advection scheme requires.
832        now get a perfect conservation of salt in advect_cs test-exp (updated)
833    o GGL90 (Gaspar's TKE mixed layer)
834      - add horizontal diffusion of TKE, requires exchanges in
835        do_fields_blocking_exchanges, horizontal diffusivity is zero by
836        default. In OPA there is no horizontal diffusion of TKE but the
837        mixing coefficients are computed from a horizontal average of TKE of
838        6 points or so. I think that diffusion has a little more physical
839        justification.
840      - clean up ggl90_calc in the hope of reducing memory usage (this hope
841        was in vain)
842      - mask tke-variable in ggl90_init
843    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
844    o fix biharmonic diffusion on CS-grid.
845    o more obcs stuff
846      - added obcs_external_fields_load as an alternative to the EXF-pkg option
847        for reading boundary values. This routine is called from
848        obcs_prescribe_read
849      - updated obcs_check
850      - changed sponge layer relaxation parameter units for days to seconds
851      - turned off sponge layer by default
852      - changed argument list of OBCS_CALC to myTime+deltaTclock
853      - fixed about 35 bugs in obcs_external_fields_load
854    
855    checkpoint55c_post
856    o obcs stuff
857      - new runtime flags useOBCSprescribe, useOBCSbalance
858      - re-arranged obcs_calc
859      - moved exf_getobcs to obcs_prescibe_read
860        obcs_prescibe_read is called after ORLANSKI stuff
861        and independent of it (executable can contain all).
862      - updated obcs_check
863      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
864        These may be necessary only if tangential velocities are
865        prescribed at OB, not sure, needs testing.
866    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
867      which simplifies the calls and passes the ifc check-bounds test
868    
869    checkpoint55b_post
870    o add a 2D scalar, Z location, exchange_2 routine.
871    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
872      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
873      affects advect_cs results (for the wrong reason): update output.txt
874    o use a more standard discretization for biharmonic viscosity ;
875     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
876      affects results of dome set-up: update output.txt
877    o fix gad_advection.F (CubedSphere part), back to version 1.23
878    o fix bug in mom_vi_del2uv.F (CubedSphere part).
879    
880    checkpoint55a_post
881    o merged code to
882      * prescribe/read time-dependent open boundaries
883        (works in conjunction with exf, cal)
884      * sponge layer code for open boundaries
885      * each boundary N/S/E/W now has its own CPP option
886        (healthy for the adjoint)
887    
888    checkpoint55
889    o up-to-date adjoint of previous breaks
890      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
891      - global_ocean_ebm: adjoint still needs fix (TLM ok)
892      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
893      - carbon: * remove tr1-related adjoint verification
894                * add ptracer as control variable
895    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
896      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
897    
898    checkpoint54f_post
899    o in verification/carbin/ remove experiment related to
900      ALLOW_PASSIVE_TRACER (array tr1 etc)
901      code_ad/ input_ad/ results_ad
902    
903    o add two new packages
904      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
905        + subject to optimization (memory)
906      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
907        + subject to reordering (many GOTOs in the original code)
908        + so far opps is called for every (i,j) point, and then operates in
909          the vertical; one may want to reorder the scheme in order operate in
910          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
911          fields)
912    o overhaul of IO so that we now have flags for MDSIO and/or MNC
913      - all verification tests compile and run with linux_ia32_g77
914      - defaults are compatible with current input files--nothing
915        should change if you were not previously using MNC
916      - MNC output has been added in numerous places (eg. timeave)
917        but there are still a few writes not yet do-able with MNC
918        (this is in progress)
919      - flags now allow for either/or/both use of MDSIO and MNC and
920        documentation will soon follow
921      - numerous small formatting cleanups for ProTeX
922    o add version info (via BUILD_INFO.h) to MNC and stdout
923    
924    checkpoint54e_post
925    o add two new packages
926      - pp81 (Packanowski and Philander, 1981), Richardson number and
927        stratification dependent mixing
928      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
929      - these scheme operate in a similar manner as KPP (without ghat, of
930        course), however there is only one diffusivity that is used for both
931        temperature and salinity (and passive tracers)ç
932    o add offline package
933    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
934      provided by Stephanie Dutkiewicz
935    o genmake2: add ability to search for C compilers and cleanup test output
936      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
937    
938    checkpoint54d_post
939    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
940    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
941      leading to additional shift by 5 days each year of integration
942       (i.e. leading to considerable offset over the years)
943    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
944    o start with no AB and no initial filtering (staggerTimeStep):
945      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
946    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
947      (external loading & cpl import/export stay in forward_step.F)
948    o update coupling interface to work with new staggerTimeStep
949    o change MDSIO ptracers_pickup.
950    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
951    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
952    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
953    
954    checkpoint54c_post
955    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
956      this affects (truncation error) output.txt of test-exp:
957       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
958    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
959    o change Qnet to always be the net heat flux, (+upward).
960      affects (truncation error) output of natl_box exp.: updated
961    o define the max number of passive tracers in PTRACERS_SIZE.h
962    o start to test mnc routinely in exp0
963    o add sea-ice loading (sIceLoad) as a new forcing field.
964    
965    checkpoint54b_post
966    o add testreport "-j JOBS" option for parallel builds (tested and pretty
967       impressive on Altix and Opteron systems)
968    o diagnostics can now write NetCDF files through the mnc package
969    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
970    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
971    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
972      affects (truncation error) output of lab_sea & natl_box exp.: updated
973    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
974    
975    checkpoint54a_post
976    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
977    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
978    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
979    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
980      + internal_wave (shift in writing cg2d_ini_res)
981    checkpoint54a_pre
982    
983    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
984      - modified verification/lab_sea and natl_box_adjoint accordingly
985    
986    checkpoint54
987    checkpoint53g_post
988    o prepare splitting of thermodynamics: store convect.counter in common block
989    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
990      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
991    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
992    o new parameter "nShapS": allow to treat differently S from T (nShapT)
993    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
994    o restore adjointability
995    
996    checkpoint53f_post
997    o modifications that affect AIM experiment results (update output.txt):
998      - no advection of S at top interface Nr (pkg/generic_advdiff)
999      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1000    o AIM pkg:
1001      - include stability function into surf.Flux derivative relative to Tsurf
1002      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1003    
1004    checkpoint53e_post
1005    o merged cylindrical coord configuration
1006    o added rotating_tank experiment
1007    checkpoint53e_pre
1008    
1009    checkpoint53d_post
1010    o faulks upgraded: re-generate output.txt that have changed:
1011       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1012    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1013    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1014    o added Sadourny discretization of Coriolis
1015      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1016      - re-enabled use of omega3 (useAbsVorticity)
1017    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1018      vector-invariant equations
1019      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1020    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1021      hopefully without new bugs
1022      - still to do: biharmonic friction for non-hydrostatic w
1023    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1024    o regenerated output for global_ocean_ebm (using -ieee)
1025    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1026      of mom_common/
1027      - simple re-arrangement of instructions within computing loop
1028    checkpoint53d_pre
1029    
1030    checkpoint53c_post
1031    o new version of coupler for AIM+thSIce and Ocean models
1032     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1033     - land: change Evaporation of snow
1034     - aim with thSIce: fix bug in snow-precip.
1035    o changes to calc_gw.F
1036     - bug fix for w^2 term near the bottom boundary
1037     - (hopefully) improve the lateral slip boundary condtions for use with
1038        partial/looped cells
1039      - because the bug fix changes two verification experiments anyway (exp5
1040        and plume on slope), change the lateral boundary condition from half slip
1041        to the value of no_slip_sides
1042    o ebm package wasnt quite up to the parallel task. Fixed that.
1043    o Adjoint of EBM package + verification
1044      * TLM OK
1045      * ADM not sufficient accuracy yet (needs further testing)
1046    
1047    checkpoint53b_post
1048    o Commiting new energy balance model to repository
1049      * package is pkg/ebm
1050      * verif. is verification/global_ocean_ebm
1051      * references are in ebm_driver.F
1052    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1053    C        Global thermohaline circulation. Part I:
1054    C        Sensitivity to atmospheric moisture transport.
1055    C        J. Climate 12(1), 71-82
1056    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1057    C        Global thermohaline circulation. Part II:
1058    C        Sensitivity with interactive transport.
1059    C        J. Climate 12(1), 83-91
1060    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1061    C        Destabilization of the thermohaline circulation
1062    C        by atmospheric eddy transports.
1063    C        J. Climate 7(12), 1870-1882
1064    o Will need long integration testing.
1065    checkpoint53b_pre
1066    
1067    o created pkg/mom_common in preparation for variable viscosity code
1068    o renamed and split ini_mnc_io
1069    o pkg/land: only liquid water can diffuse or run-off
1070    o AIM using land: soil wetness availability account for snow
1071    o added printMapIncludesZeros to EEPARMS namelist
1072    
1073    checkpoint53a_post
1074    o restore TAMC compatiility for exf_constants.h
1075      (no usage of _d in .h)
1076    o Additional storing in KPP in an attempt to fix
1077      TAMC problem with adjoint of KPP code.
1078      (no success...)
1079      Identical code works fine with TAF.
1080    o Fixed verification/natl_box_adjoint experiments.
1081      Initial conditions for Experiments 4 and 5 are now
1082      set to "SEAICE_initialHEFF=0", which is more reasonable,
1083      and hence gives results closer to that of Experiment 2.
1084      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1085    
1086    checkpoint53
1087    o stable checkpoint with up to date adjoint
1088      TLM tests only run for 1st grdchk at the moment. Its unclear if
1089      this is a code problem or a problem with resetting code for g_
1090      variables that is being autogenerated wrong.
1091      Otherwise:
1092       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1093       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1094         are both still in chaos following their security messes.
1095    
1096    checkpoint52n_post
1097    o various build (mostly genmake2) changes including:
1098      - ability to build/run more easily within Cygwin and MacOS X
1099      - more complicated Makefiles with a stronger dependence on Gnu Make
1100    o pkg/seaice modifications
1101      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1102        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1103        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1104      - changed proxy for geostrophic velocity and updated
1105        verification/lab_sea/results/* accordingly
1106      - removed ADI dynamic solver from pkg/seaice
1107      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1108        they caused a segmentation fault under certain circumstances
1109      - removed unused field WATR
1110    o bug fix in exf-package:
1111      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1112         now reflect that.
1113    o small fixes in the cal-package:
1114      - set reference date to first of January for the 'model'-calendar
1115      - failing of cal_CheckDate in cal_FullDate now actually results in a
1116        warning
1117    o small modifications in exf-package to increase flexibility:
1118      - change climtempfreeze from a constant to a runtime parameter that
1119        is specified in data.exf_clim (default = -1.9)
1120      - introduce runtime parameter windstressmax (default = 2.0) that is
1121        specified in data.exf
1122    o fix in pkg/thsice:
1123      - update Evap (Tsf changes) to be consistent with Latent heat flux
1124      - maintain snow precipitation unchanged (even if Tsf >=0).
1125     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1126    
1127    checkpoint52m_post
1128    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1129      this does not change any of the results, because myIter=0 in swfrac always
1130      lead to jwtype=2 (the default anyway), but the call makes little sense
1131      as a default
1132    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1133    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1134      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1135    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1136    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1137    o extending useSingleCpuIO option to work with new exch2 I/O format
1138      - old-style, missing-tile I/O is still accessible by defining CPP
1139        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1140    o monitor package can write to NetCDF files and/or STDOUT
1141    o fix re-definition bug in MNC_GRID_INIT_ALL()
1142    o doc/api_reference added
1143      - a framework for building an API Reference Manual using all
1144        the "protex" comments embedded in the code
1145      - see pkg/generic_advdiff, pkg/mnc for examples
1146    o MNC:
1147      - make myThid the last argument for all subroutines
1148      - new default for the grid files: NO halos
1149      - add useMNC and other run-time flags
1150      - separate per-file-group handling of the unlimited dimension
1151      - early initialization of MNC w/ flags read at the eeboot stage
1152        and lookup tables set in initialize_fixed
1153      - write all MNC output to a freshly-created directory
1154    o thermodynamics sea-ice (thsice) is now tested with testreport.
1155    o test exp. advect_cs: use the standard cs32 grid ; update output.
1156    o Added functionality to grdchk:
1157      pick global i,j,k position (or nearest wet) where to perform check.
1158    
1159    checkpoint52l_post
1160    o new land formulation:
1161      a) use ground enthalpy as prognostic variable to ensure exact
1162         energy conservation.
1163      b) account for water temperature and for latent heat of freezing
1164         in all processes (rain, run-off, ground storage)
1165      c) compute surface and ground temperature implicitly.
1166    o aim_v23 modification for new land model:
1167      a) Treat separately land / ocean / sea-ice surface fluxes
1168         to allow implicit computation of land & sea-ice surface temp.
1169      b) add snow precipitation.
1170    checkpoint52l_pre
1171    
1172    o fix problem (when 1 tile is empty) in min/max monitor.
1173    o fix bug in timeAve (u,vZetatave in common block)
1174    o no restoring terms under ice for pkg/seaice
1175    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1176    o bug fix for pkg/seaice pickups
1177    o change MNC call locations and add coordinate attributes
1178    o mask vorticity at the corner ; affects global_ocean.cs output
1179    o fix ini_curvilinear_grid ; test CS experiments with mpi
1180    o aim.5l_cs: modify sea-ice fraction input file ; update output
1181    o exf: Adding simple range check routine for exf fields after read
1182    
1183    checkpoint52k_post
1184    o removed top-level directory "diags"
1185      - we migrated these functions to pkg/timeave a long time ago
1186    o fixed bug introduced in pkg/monitor
1187    o accuracy ctrlprec = 32 insuffient for gradient checks using
1188      averaged fields (I/O via cost_averages)
1189      -> use ctrl.h in active_file*.F to control I/O precision.
1190    o paramter list of CALL ADTHE_MAIN_LOOP
1191    o added initial do_the_model_io to ecco
1192    o set all ...Freq to zero after cost_final
1193      taveFreq, dumpFreq, pChkptFreq
1194    o MAIN and ECCO differentiability restored
1195    
1196    checkpoint52j_post
1197    o fix nchklev in tamc.h for global_ocean...
1198    o Bringing flow and store directives up-to-date
1199    o Really weird thing!
1200      call do_the_model_io from the_main_loop with parameters
1201      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1202      TAF places a faulty re-call of initialise_varia
1203      after cost_final call which should not be there!
1204    checkpoint52j_pre
1205    
1206    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1207      error messages
1208    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1209    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1210      debug output
1211    o modfied mdsio_writefield.F to handle non-global files under exch2
1212    o update AIM Cubed-Sphere exp (aim.5l_cs):
1213      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1214    o update AIM Equatorial Channel exp:
1215      use standard aim_v23 pkg and change the SST fields to be more realistic.
1216    o globalFile now works with exch2
1217    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1218      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1219    o limit timeave output for hi-res integrations
1220    
1221    checkpoint52i_post
1222    o removed CPP_EEOPTIONS.h from verification/*/code
1223    o updated the tiling for global_ocean_pressure
1224    checkpoint52i_pre
1225    
1226    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1227      the old pkg/aim).
1228    
1229    checkpoint52h_pre
1230    o shortened offending lines in exch2_send_rx?.template
1231    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1232    o genmake2: add build & execute test for NetCDF code
1233    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1234      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1235    o added useSingleCPUIO flag to monitor.F and mon_out.F
1236    o added temporary hack for sea-ice dynamics on the cube:
1237      metric terms are ignored and it is assumed that
1238      there is no sea-ice on cube faces 1, 2, 4, and 5.
1239    
1240    checkpoint52f_post
1241    o added exch2 cube routines to pkg/exch2
1242    o modified hs94.cs-32x32x5 to use it
1243    o added new grid files to hs94.cs-32x32x5
1244    checkpoint52f_pre
1245    
1246    checkpoint52e_post
1247    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1248      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1249    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1250      to work with implicit vertical advection and AB ;
1251    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1252    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1253     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1254    checkpoint52e_pre
1255    
1256    o fix bug in impldiff when Nr=1 or Nr=2.
1257    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1258    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1259    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1260      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1261    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1262    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1263    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1264    
1265    checkpoint52d_post
1266    o re-tiled many expts to allow comparison in multi-processor mode
1267      - updated output accordingly
1268      - changed hs94.128x64x5 to use intial T from file rather than use the
1269        random number generator
1270    o add infrastructure in model routines for fizhi and gridalt packages
1271    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1272    o changes to permit hi-res, cubed-sphere, configuration
1273      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1274      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1275      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1276        of surface winds for the cube
1277      (A verification experiment, based on global_ocean.cs32x15, but with
1278       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1279       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1280       complete with example surface forcing files and matlab scripts to look
1281       at the output and compare it with that of global_ocean.cs32x15.)
1282    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1283       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1284       to conform to the common rule.
1285    o check-in the first version of the coupler + interfaces for multi-components
1286       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1287       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1288       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1289       - ocean and atmos. share the same horizontal grid (no interpolation).
1290       - exchanges between component and coupler is done in forward_step
1291    o new verification experiment, cpl_aim+ocn:
1292       coupled ocean - AIM atmosphere on cs32 grid.
1293    
1294    checkpoint52d_pre
1295    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1296    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1297    
1298    checkpoint52c_post
1299    o Fixing OPTIONS files for use of exf:
1300      - ALLOW_ECCO not needed
1301      - ECCO_CPPOPTIONS.h should not be included from
1302        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1303        as has been the case in the past
1304      - All cal/exf related options are currently set in
1305        single header file. Should remain so until we
1306        agree on a consistent new policy.
1307    o Removed all CPP options for cal package.
1308      cal has no more CPP options.
1309    o modified STOREs in GAD_ADVECTION
1310    o corrected key comp. for passkey
1311    
1312    checkpoint52b_post
1313    o new version: "thsice" of thermodynamic sea-ice pkg:
1314     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1315     - modify fluxes but do not change theta directly;
1316     - light cleaning of bulk_force pkg (still needed with thsice).
1317     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1318       + output_thsice.txt to test thsice & bulk_force pkgs.
1319    o put back grid & coriolis monitor output.
1320    checkpoint52b_pre
1321    
1322    o call "do_the_model_io" at the beginning (=> dump initial state)
1323    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1324    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1325      (need info on NUMBER_OF_PTRACERS)
1326    o missing PTRACERS headers in some routines
1327    o default tamc.h in pkg/autodiff supposed to crash
1328      to ensure proper customization
1329    
1330    checkpoint52a_post
1331    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1332      - moved surfaceTendencyTice from pkg/seaice to main code
1333      - subroutine FREEZE_SURFACE now limits only surface temperature
1334        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1335        => new output.txt for global_ocean.cs32x15 & global_with_exf
1336      - keep the old version of FREEZE for backward compatibility;
1337        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1338      - corresponding modifs for TAF directives
1339    o added surface flux output variables to TIMEAVE_STATVARS
1340    o time-averaged output for pkg/ptracers
1341    o fix problem with ECCO-related divided adjoint
1342      snapshot file was missing some ad-variables,
1343      but no warning issued by TAF
1344    
1345    checkpoint52a_pre
1346    o some bug fixes for #undef REAL4_IS_SLOW
1347    
1348    checkpoint52 = ecco_c52_e35
1349    o after testing adjoints of checkpoint51u_post
1350    
1351    checkpoint51u_post
1352    o this is the post-merge tag of the ecco-branch
1353      (needs another clean checkout and re-testing)
1354    o various natl_box_adjoint configs and results
1355      but no input fields
1356    o obcs adjoint not yet merged!
1357    o adding ECCO global 1x1 and 2x2 degree configs
1358    o updated/extended some store directives for seaice
1359    o pkg/ecco now containes ecco-specific part of cost function
1360    o top level routines the_main_loop, forward_step
1361      supersede those in model/src/
1362      previous input data.cost now in data.ecco
1363      (new namelist ecco_cost_nml)
1364    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1365    
1366    checkpoint51t_post
1367    o this is the pre-merge tag of the ecco-branch
1368    
1369    checkpoint51s_post
1370    o cleanup: removed various obsolete #define-s
1371    o pkg/grdchk
1372      - renamed 'ph-grd 3' to 'grad-res'
1373      - merged from ecco-branch
1374        (remaining bug fixes for obcs gradient checks)
1375      - additional high-precision output for testreport
1376        (grep for 'precision_grdchk_result')
1377    
1378    checkpoint51r_post
1379    o cleaned up or removed CPP_OPTIONS.h files
1380    o updated results for some of the tests to reflect the new
1381      optfiles (-ieee: -O0 instead of -O3)
1382    
1383    checkpoint51q_post
1384    o cd_code:
1385      - moved cd_scheme.F -> cd_code_scheme.F
1386      - separate read_checkpoint from cd_code_ini_vars.F
1387      - separated cd_code part from write_checkpoint
1388      - updated AD_SOURCE, generated .flow
1389      - added CD_CODE_VARS.h to the_main_loop
1390      - Moving cd_code specific store dir.s to pkg/cd_code
1391    o ctrl package totally restructured
1392      - pack/unpack now optional and decoupled from
1393        xx_/adxx_ I/O
1394      - ctrl_pack/unpack cleaned
1395        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1396      - confined inclusion of AD_CONFIG.h to where necessary.
1397    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1398    
1399    checkpoint51p_post
1400    o create initial cd_code package
1401      - WARNING: the initialization of fields within packages
1402        is broken because INI_FIELDS (where READ_CHECKPOINT is
1403        called) is called *before* PACKAGES_INIT_VARIABLES.
1404        This seems to be backwards since
1405        1) its important to initially zero the entire field including
1406           the "halo" region
1407        2) zeroing needs to be done *before* reading pickup info
1408           and the pickup call might or might not happen in any
1409           particular run
1410      - this needs an overhaul for R2
1411    o cleanup verification/*/code/GMREDI_OPTIONS.h
1412    o cleanup testreport
1413    
1414    checkpoint51o_post
1415    o bringing AD-related verif's up to date with genmake2
1416      - carbon/
1417      - global_ocean.90x40x15/
1418      - hs.94.1x64x5/
1419      - (front_relax/ )
1420    o (more) consistent directory structure for AD-related verif.'s
1421    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1422    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1423    o bug fix in find_alpha.F for MDJWF:
1424      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1425        change rho -> rho-rhoConst
1426      - replace call find_rho to find_rhonum
1427    o initialisation of rFlx extended to full array (required by TAF)
1428      and shifted to thermodynamics
1429    o removed PTRACERS.h in ptracers routine
1430    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1431    o Correcting initialisations for fVerU, fVerV.
1432    o helping TAF to recognize dependency on kUp for
1433      fVerU, fVerV
1434    o Replacing delZ by delR in pkg/ctrl/
1435    checkpoint51o_pre
1436    
1437    o undid all of cp51 pending some cleanups and discussion
1438    o added the [#include "AD_CONFIG.h"] statement to all files that need
1439       it for adjoint/tl #defines
1440     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1441     o removed tools/genmake since it no longer works
1442    
1443    checkpoint51n_post
1444    o modifications to make FREEZE flux visible to pkg/kpp
1445      - moved surfaceTendencyTice from pkg/seaice to main code
1446      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1447      - subroutine FREEZE now limits only surface temperature
1448        (this means new output.txt for global_ocean.90x40x15,
1449         global_ocean.cs32x15, and global_with_exf)
1450    o added surface flux output variables to TIMEAVE_STATVARS
1451    
1452    checkpoint51n_pre
1453    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1454    o added [#include "AD_CONFIG.h"] to all files that use the following
1455      defines:
1456      - ALLOW_ADJOINT_RUN
1457      - ALLOW_TANGENTLINEAR_RUN
1458      - ALLOW_ECCO_OPTIMIZATION
1459    
1460    checkpoint51m_post
1461    o incorporating changes to get TAMC/TAF working in genmake2
1462      - added new TAMC/TAF targets to the Makefile
1463      - various cleanups related to package handling
1464      - these changes should have no impact on the forward model
1465    
1466    checkpoint51l_post
1467    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1468     - faster algorithm for cal_addtime.F
1469     - higher precision arithmetic, where needed
1470     - pkg/exf *startdate variables changed from calendar date to
1471       model integration time
1472    
1473    checkpoint51l_pre
1474    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1475    o enable to apply restoring on S & T only in a latitude band.
1476    o update output (external_forcing_surf modif. change truncation errors)
1477       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1478    
1479    checkpoint51k_post
1480    o change default to: useNHMTerms=.FALSE.
1481     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1482       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1483     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1484        exp1, ideal_2D_oce
1485     - change data file of oceanic exp (leave the results unchanged for now)
1486       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1487    o set gravitySign automatically according to the vertical coordinate used
1488      (and change sign: back to "logical" value: +1 when R increases downward)
1489    o added an include barrier to the default CPP_OPTIONS.h and
1490      removed the #include "PACKAGES_CONFIG.h" from it
1491    o fix a bug in mom_fluxform (from chk51j_post)
1492    
1493    checkpoint51j_post
1494    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1495    o adjusted some flow directives (dynamics, thermodynamics)
1496    o added cubed-sphere case to test cost function
1497    o heckpoint_lev?_directives.h now include
1498      pkg-specific directives, whenever those are enabled.
1499    o Moving pkg-specific flow directives to corresponding pkg
1500      Moving pkg-specific differentiation list to corresponding pkg
1501      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1502      ---> conventions are
1503           - pkg_ad.flow
1504           - pkg_ad_diff.list
1505           - pkg_ad_check_lev?_dir.h
1506    
1507    checkpoint51i_post
1508    o merge of the branch-genmake2
1509      - knowingly breaks the older genmake
1510      - automatic generation of all ALLOW_${PKG_NAME} defines
1511      - new testreport supersedes older testscript
1512    o large number of package inclusion and header cleanups
1513    checkpoint51i_pre
1514    
1515    o new output for adjoin of global ocean vector invariant
1516    o fix for checkpoint of thermodynamic seaice and bulk_force
1517    o Steph gchem various cleanups
1518    
1519    checkpoint 51h_pre
1520    o fixed some single quotes
1521    o modify gchem pkg to be more versatile
1522    o modifications to clean up dic pkg
1523    o add pkg/cfc
1524    
1525    checkpoint51g_post
1526    o provide links for ARPACK and ADM*TLM
1527    o start removing verification/vero/
1528    o update AD-related stuff
1529      (in particular some IF-statements in model/src/ routines)
1530    o adding to verification/global_ocean.90x40x15/ adjoint of
1531      vector invariant setup
1532    
1533    checkpoint51f_post
1534    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1535    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1536      of tracer Green's fucntions for ocean inversion project.
1537    
1538    checkpoint51f_pre
1539    o Added on-the-fly spatial interpolation capability
1540        "USE_EXF_INTERPOLATION" to pkg/exf.
1541      - This is a temporary Cartesian-grid hack until
1542        the super-duper ESMF coupler becomes available.
1543      - See verification/global_with_exf/README for usage example.
1544      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1545        flags and modified pkg/seaice accordingly.
1546    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1547        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1548        non-local transport term.
1549    
1550    checkpoint51e_post
1551    o pkg/mom_vecinv:
1552      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1553      - add time-ave diagnostic of vorticity advection.
1554    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1555    o atmospheric geopotential: - include water vapor effect;
1556                                - use p^kappa in p* scaling.
1557    o land pkg: read initial state from files.
1558    o AIM : add stratospheric drag in the upper level
1559    
1560    checkpoint51d_post
1561    o change function ILNBLNK (=> last non-blank char.) to return zero
1562      (instead of the string length) when the string. char is empty
1563    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1564    o modif's to restore TAMC compatibility
1565      - avoid "_d" constructs in PARAMETER declarations
1566      - avoid interrupting lines by comment lines
1567    o Use cluster local disks for purely local I/O
1568      vs. globally visible disks needed for ctrl stuff
1569      (merged from ecco-branch)
1570      - new active_file_loc... and mdsio_..._loc routines
1571      - affected packages: autodiff, ctrl, grdchk, mdsio
1572    
1573    checkpoint51c_post
1574    o introducing integer flag debugLevel
1575      - debLevZero: suppress all output
1576      - debLevA: standard
1577      - debLevB: equivalent to current debugMode=.TRUE.
1578    o introducing pathname variable mdsioLocalDir for mdsio
1579      that can be specified at runtime
1580      (relevant for cluster I/O to local disk)
1581    `
1582    >>>checkpoint51b_post
1583    adjoint of ptracers
1584    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1585    o extended state in checkpoint_lev?, etc.
1586    o alternative ctrl/cost with tr1 or ptracer
1587    o new comlev1_bibj_ptracers
1588    o new ptracers.flow
1589    o made ptracers_forcing same as external_forcing_s
1590    o added verification for adjoint with ptracers
1591      - adm. grdchk fail so far
1592      - tlm. grdchk OK
1593      - checked tapelev/comlev recomputations: OK
1594    <<<checkpoint51b_pre
1595    
1596    checkpoint51a_post
1597    o added code for biogeochemistry package
1598      - new pkgs: dic, gchem
1599      - new subroutine in ptracers
1600    o modify code for biogeo packages
1601      - in model/src and pkg/ptracers
1602    
1603    checkpoint51
1604    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1605      - autodiff, ctrl, exf, grdchk, seaice
1606      kept separate packages
1607      - cost, ecco, obcs
1608    o updating verification/internal_wave, verification/lab_sea
1609      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1610    
1611    checkpoint50i_post
1612    o Preparing next differentiable checkpoint and sync
1613      of MAIN vs. ecco-branch
1614      - 1st step: this one is differentiable
1615      - 2nd step: next(! not this) checkpoint will have updated packages
1616                  from ecco-branch)
1617    
1618    checkpoint50h_post
1619    o new package "land": provide surface BC for AIM.
1620    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1621    o AIM: use true log-P extrapolation for near surface temp (= as in
1622        F.Molteni paper) ; update aim.5l_cs output.
1623    o New variable in PARM03 for more flexible pickups
1624    o somewhat cleaned package initialisation sequence for
1625      ctrl/ cost/ ecco/ in packages_... routines
1626    
1627    checkpoint50g_post
1628    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1629      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1630      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1631        made the default because of faster convergence than ADI
1632    
1633    checkpoint50f_post
1634    o exf totally restructured
1635      - replaced all exf_set_ routines by one generic exf_set_gen.F
1636        and made sure it's still differentiable
1637      - split exf_getffields.F into new exf_bulkformulae.F
1638      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1639      - updated adjoint/makefile and relevant verif. accordingly
1640    
1641    checkpoint50f_pre
1642     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1643          + change Evap over land. (update aim.5l_cs output)
1644     o added missing .cvsignores and made uniform across expts
1645     o changed configuration of tidal_basin_2d expt
1646     o added pkg/debug functions for tracing code in fatal crashes
1647     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1648     o new fn in pkg/monitor to stop model if solution grows too big
1649     o removed lots of single quotes from comments
1650    
1651    checkpoint50e_post
1652    o make KPP work with PTRACERS
1653     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1654       nearly a copy of kpp_transport_s
1655     - there is no analogue to SurfaceTendencyS, so I have to use
1656       gPtr(of the surface layer) instead
1657    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1658    checkpoint50e_pre
1659    
1660    checkpoint50d_post
1661    o change kpp output from multiple-record state files to single-record state
1662      files analogous to write_state.F
1663    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1664      analogous to the cg2d-related output.
1665    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1666      so that writing to internal file fn (with length 512) fails.
1667    checkpoint50d_pre
1668    
1669    checkpoint50c_post
1670    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1671    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1672    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1673    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1674    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1675    
1676    checkpoint50c_pre
1677    Merging from release1_p13:
1678    o bug fix for pkg/seaice dynamic solver
1679    o Added SEAICE_initialHEFF to pkg/seaice
1680    
1681    checkpoint50b_post
1682    o store u*,v* in gU,V instead of in guNm1,gvNm1
1683    o in order to put the momForcing out of the Adams-Bashforth:
1684      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1685      to timestep.F
1686    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1687    o re-generate output for highly sensitive test-exp:
1688       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1689    
1690    checkpoint50b_pre
1691    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1692    o corrected CPP option mismatch in exf_Bulk... functions for case
1693      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1694    
1695    checkpoint50a_post
1696    o Bug fix for merging between c50 and KPP.
1697      ikey was passed from thermodynamics to kpp_calc via
1698      common block rather than being recomputed in kpp_calc,
1699      in contradiction with new key itdkey.
1700      New key ikppkey created, and tamc.h headers updated.
1701    
1702    checkpoint50
1703    - 2nd step of merge with ecco-branch:
1704      merge changes in ecco-branch back into main trunk
1705    - bug fix in find_alpha
1706    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1707    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1708    - merged some sliced AD support routines
1709    
1710    checkpoint49
1711    merged from ecco-branch:
1712    o exf:
1713      - Enable initialisation of forcing fields to constant
1714        (runtime) values.
1715      - in exf_getffields.F
1716        Reduce i-/j-loop to interior domain, discarding overlaps.
1717        That also fixes wrong TAF-key computations for key_1, key_2
1718        with bulf formulae.
1719      - exf_init.F modify #ifdef for exf_init_evap
1720      - exf_getffieldrec.F, ctrl_getrec.F
1721        The following INT-usages are not safe:
1722          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1723          fldcount = int(fldsecs/fldperiod) + 1
1724        and were modified.
1725    o autodiff: checkpoint_lev...
1726      - updated storing for bulk formulae (some arrays were missing)
1727      - added state for seaice package
1728      - synchronized with main branch
1729    o DIVA:
1730      Modif.s in
1731      - the_main_loop.F
1732      - the_model_main.F
1733      and added cost_final_restore.F cost_final_store.F
1734      o With these changes, it is possible to fully separate
1735        the first forward run to compute the cost function (mdthe_main_loop)
1736        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1737        into separate model executions.
1738        This enables better tuning of DIVA to given queue sizes.
1739      o Loss of cost function value in consecutive DIVA runs is
1740        fixed by storing to 'costfinal' file.
1741      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1742        beginning/end of adjoint integration is accounted for.
1743      The current changes apply to TAF-1.4.26.
1744      TAF has one remaining bug, requiring one manual change
1745      (see MITgcm manual).
1746    o cal: synchronized between MAIN and ecco-branch
1747    
1748    checkpoint48i_post
1749    o Changes to restore differentiability of code w.r.t. previous tag
1750      (mostly adding new routines to make list and replacing
1751      pressure by totPhiHyd).
1752    o Updated and merged grdchk package
1753      - has both ADM and TLM checks
1754      - works for single- and multi-proc.
1755      - output cleaned
1756      - worked successfully for parallel DIVA
1757    o genmake:
1758      - Adding -platform=SP4
1759      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1760    o Modif. for DIVA:
1761      ctrl_unpack should not be called in intermediate DIVA interval.
1762      (similar thing would apply for active files such as
1763      tbar, sbar, psbar, which should not be reinitialised;
1764      only relevant for ecco-branch)
1765    
1766    checkpoint48h_post
1767    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1768    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1769    o Added SEAICE_initialHEFF to pkg/seaice
1770    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1771    
1772    checkpoint48g_post
1773    --- EOS:
1774    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1775      store total Potential in totPhyHyd for diagnostics & EOS.
1776    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1777    --- Pressure/geopotential gradient:
1778    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1779    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1780      ( changes results of global_ocean_pressure )
1781    o NLFS + z-coord.: add eta*Rho' contribution.
1782    o accurate phiHyd when using interface-W at the middle between 2 centers
1783     ( changes results of ideal_2D_oce )
1784    o includes r* 2nd term in potential gradient.
1785    
1786    checkpoint48f_post
1787    Merging from release1_p12:
1788    o Modifications for using pkg/exf with pkg/seaice
1789      - improved description of the various forcing configurations
1790      - added basic radiation bulk formulae to pkg/exf
1791      - units/sign fix for evap computation in exf_getffields.F
1792      - updated verification/global_with_exf/results/output.txt
1793    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1794      (SBO) core products, including oceanic mass, center-of-mass,
1795      angular, and bottom pressure (see pkg/sbo/README.sbo).
1796    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1797      to avoid negative values in shallow regions.
1798      - updated verification/natl_box/results/output.txt
1799      - updated verification/lab_sea/results/output.txt
1800    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1801    o Added useSingleCpuIO option (see PARAMS.h).
1802    o Updated useSingleCpuIO option in mdsio_writefield.F to
1803      work with multi-field files, e.g., for single-file pickup.
1804    o pkg/seaice:
1805      - bug fix in growth.F: QNET for no shortwave case
1806      - added HeffFile for specifying initial sea-ice thickness
1807      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1808    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1809      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1810    o pkg/seaice:
1811      - adjoint-friendly modifications
1812      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1813    
1814    checkpoint48e_post
1815    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1816    o dynamics: change definition of computational domain & adapt mom_fluxform
1817      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1818    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1819        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1820        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1821        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1822        inverted_barometer solid-body.cs-32x32x1
1823      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1824    
1825    checkpoint48d_post
1826    o in preparation for r*:
1827     a) use pre-computed gradient of hydrostatic potential:
1828        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1829     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1830        => affects results of glob_oce_pressure (different truncation error)  
1831      update output.txt of ideal_2D_oce & global_ocean_pressure
1832    
1833    checkpoint48d_pre
1834    o in preparation for r*:
1835      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1836      pass the 2 comp. of the grad. as arguments to momentum S/R.
1837      but for the moment, only used if it does not change the results.
1838    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1839    
1840    checkpoint48c_post
1841    Modifications in treatment of initial flux forcing controls
1842    to avoid extra storing of flux fields.
1843    
1844    checkpoint48c_pre
1845    o Added tidal_basin_2d experiment (currently 1D!)
1846    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1847    
1848    checkpoint48b_post
1849    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1850     (modification to pressure gradient not yet implemented)
1851    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1852      (for U & V) that are used for vertical advection of momentum.
1853    
1854    checkpoint48a_post
1855    o In preparation for r*, use temp. array to compute vertical transport
1856       in flux-form momentum pkg. => change results of few test-exp.
1857      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1858                        lab_sea, natl_box & plume_on_slope
1859    
1860    checkpoint48
1861    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1862    
1863    checkpoint47j_post
1864    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1865    o moved adexch from forward_step to addummy_in_stepping
1866    o added exch in ctrl_map_...
1867    o aveFreq.=0. at end of cost_final to avoid overwrite in
1868      reverse checkpointing loop
1869    o Yet more changes in gmredi:
1870      * adgmredi_calc_tensor
1871        avoiding all recomputation of gmredi_slope_limit
1872      * adgmredi_x/y/rtransport
1873        added flag for excessive storing to avoid recomp. of
1874        u/v/rtans, dTdx/y/z
1875        -> this is not really necessary and very memory-consuming
1876      * adgmredi_slope_psi:
1877        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1878      * gmredi_slope_limit
1879        re-activated full calculation of taperfct for case 'ac02'
1880    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1881    
1882    checkpoint47i_post
1883    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1884    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1885      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1886    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1887    o gmredi: fix few bugs.
1888    
1889    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1890    This will be a good checkpoint to plug into the ecco-branch.
1891    o few modif.'s to get latest version adjointed
1892      (mainly kick out code in ini_linear_phisurf)
1893    o modif's to run adjoint with exactConserv
1894    o case GM_BOLUS_ADVEC should be cleaned
1895      S/R gmredi_slope_psi should be cleaned
1896    o verification/carbon now has exactConserv=.TRUE.
1897    
1898    checkpoint47g_post
1899    o time-average AIM output: becomes independent from statvars time-average
1900      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1901    o After TAF bug fix:
1902      Tested adjoint of gmredi package.
1903      Tests were done with checkpoint47 rather than with latest
1904      checkpoint47f_post since the latter is broken for the adjoint
1905      verification/carbon/ contains both ADM and TLM gradient checks.
1906    Here they are, before they get changed/lost/stolen.
1907    Mostly modif.'s to fix numerical sensitivities.
1908    Gradient checks OK for
1909    - GM_taper_scheme:
1910      * clipping
1911      * ac02
1912      * linear
1913      * glw91
1914      * dm95
1915      * ldd97
1916    - GMREDI_OPTIONS:
1917      * GM_VISBECK_VARIABLE_K
1918      * GM_NON_UNITY_DIAGONAL
1919      * GM_EXTRA_DIAGONAL
1920      * GM_BOLUS_ADVEC
1921    in conjunction with data.gmredi parameters to be checked in
1922    in a few minutes under verification/carbon/code/
1923    
1924    checkpoint47f_post
1925    Merging from release1_p10:
1926    o modifications for using pkg/exf with pkg/seaice
1927      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1928        and SEAICE_EXTERNAL_FLUXES
1929      - pkg/exf CPP options EXF_READ_EVAP and
1930        EXF_NO_BULK_COMPUTATIONS
1931      - usage examples are Experiments 8 and 9 in
1932        verification/lab_sea/README
1933      - verification/lab_sea default experiment now uses
1934        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1935    
1936    checkpoint47e_post
1937    o created a tag prior to creating a branch
1938    
1939    checkpoint47d_post
1940    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1941      at the bottom boundary had an erroneous half slip boundary condition
1942    o added bottom drag and no slip boundary condition capabilities to
1943      oceanic pressure coordinates code
1944    o added new verification experiment global_ocean_pressure, this experiment is
1945      also described in the tutorial section of the manual
1946    checkpoint47d_pre
1947    
1948    checkpoint47c_post
1949    o Added a verification experiment for a global cubed-sphere ocean run
1950      -  verification/global_ocean.cubed32x32x30
1951      -  uses pkg/therm_seaice and pkg/bulk_forcing
1952    
1953    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1954    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1955      when using P-coordinate; only implemented for atmospheric config.
1956    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1957      NOTES: requires option NONLIN_FRSURF to be "#define".
1958    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1959    
1960    checkpoint47b_post
1961    Merging from release1_p9:
1962    o pkg/seaice
1963      - removed GOTO's and added taf directives
1964      - double precision constants to reduce the g77 (Linux)
1965        to F77 (SGI) differences reported in release1_p8
1966    o tools/genmake
1967      - added SGI options
1968    o verification/testscript
1969      - updated to that of checkpoint47a_post
1970    o verification/global_ocean.90x40x15/input/eedata
1971      - modified for SGI f77 compatibility
1972    o verification/lab_sea
1973      - added description of sea-ice model
1974      - added missing matlab routines
1975      - added test of thermodynamics parallelization
1976    
1977    checkpoint47a_post
1978    o new pkg: aim_v23
1979     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1980       for now, keep the same surface forcing as before.
1981     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1982     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1983     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1984    o add diagnostic of surface correction term in monitor output
1985    
1986    o bulk_force and therm_seaice
1987    - Two packages:  bulk_force (Bulk forcing)
1988      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1989    - Earlier integration from Stephaine Dutkiewicz
1990      and Patrick Heimbach.
1991    - Two ifdef statements for compile time,
1992       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1993    
1994    checkpoint47
1995    differentiable version of checkpoint46n_post
1996    o bug fix in quasihydrostaticterms
1997    o * "clean" adjoint code (in terms of extensive recomputations)
1998        can now be obtained for all GMREDI options (i.e. for
1999        - GM_VISBECK_VARIABLE_K
2000        - GM_NON_UNITY_DIAGONAL
2001        - GM_EXTRA_DIAGONAL
2002        - GM_BOLUS_ADVEC )
2003      * However, wrong gradient check problem remains unsolved.
2004      * New CPP options have been introduced for different
2005        tapering schemes
2006    o external_fields_load now part of differentiation list
2007    o pressure needs multiple storing;
2008      would be nice to have store_pressure at beginning or
2009      end of forward_step, e.g. by having phiHyd global (5-dim.)
2010      (NB: pressure is needed for certain cases in find_rho,
2011      which is also invoked through convective_adjustment).
2012    o recomputations in find_rho for cases
2013     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2014    o #define ATMOSPHERIC_LOADING should be differentiable
2015    o ini_forcing shifted to begining of initialise_varia
2016    o Incorporating QNVS line search routines into MITgcm
2017      (this is separate code, and therefore not under pkg)
2018      lsopt/, optim/
2019    o Updated verification/carbon/
2020      - #define GM_VISBECK_VARIABLE_K
2021      - GM_taper_scheme    = 'ldd97'    
2022    
2023    checkpoint46n_post
2024    Merging from release1_p8:
2025    o verification/natl_box:
2026      updating new external_fields_load routine
2027    o New package: pkg/seaice
2028      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2029      The sea-ice code is based on Hibler (1979-1980).
2030      Two sea-ice dynamic solvers, ADI and LSR, are included.
2031      In addition to computing prognostic sea-ice variables and diagnosing
2032      the forcing/external data fields that drive the ocean model,
2033      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2034      The implied surface heat flux is then stored in variable
2035      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2036      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2037      non-local transport term.  Because this call precedes model
2038      thermodynamics, temperature under sea-ice may not be "exactly" at
2039      the freezing point by the time theta is dumped or time-averaged.
2040      N.B.: fairly large differences in accuracy occur across
2041            different platforms/compilers; comparison between
2042            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2043            generated output gives:
2044       T           S           U           V
2045      C D M    c        m  s        m  s        m  s        m  s
2046      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2047      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2048      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2049    
2050      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2051    o GAD:
2052      - generated new common blocks to account for call of
2053        same gad routines with differing traceridentities
2054        (needed to modify tracerIdentity indices in GAD.h)
2055      - generated separate common blocks for case useCubedSphereExchange
2056        (Department of Futurology)
2057      - parameter lists to gmredi_?transport: added tracerIdentity
2058      - added new key indices to tamc.h
2059    o external_fields_load:
2060      - added this routine to TAF list
2061      - needed to make some common blocks global and additional storing
2062        along the same lines as exf package (checkpoint_lev?_directives.h)
2063    o exf:
2064      updated external forcing package
2065      - bug fixes carried over from ecco-branch
2066        (missing OBCS_OPTIONS.h in two routines)
2067      - enable easy to use "no forcing".
2068      - added exf I/O for atmospheric loading
2069      - added exf I/O for runoff data
2070      - transfered scaling between exf <-> MITgcm to exf namelist
2071    o Adding new verification experiment global_with_exf.
2072      This verification experiment is almost identical to the
2073      global_ocean.90x40x15 experiment, except that it uses
2074      the exf (and cal) package instead of the
2075      external_fields_load routine (cf README file).
2076    
2077    checkpoint46m_post
2078    o modified testscript to return -- when there are no lines of "%MON" output
2079    o added new flag "quasiHydrostatic" for QH mode
2080      and new routine quasihydrostaticterms()
2081    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2082      New routine: mom_u_coriolis_nh()
2083    o fixed sign of non-hydrostatic metric terms in u and v equations.
2084      Depend on correct sign of gravitySign.
2085    o added work.pc* to .cvsignore in aim directories using ifc
2086    o introduced flag for controllin non-hydrostatic metric terms
2087    o removed gravitySign from PARM04
2088    o switched to g77/ifc from pgf77 in aim experiments
2089    
2090    checkpoint46l_post
2091    o made convective adjustment work with pressure coordinates:
2092     - changed the direction of k-loop in convective_adjustment.F for the
2093       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2094     - adjusted the reference pressure k-index in convective_adjustment.F
2095     - adjusted the convection condition in convect.F (in analogy to
2096       calc_ivdc.F)
2097     - convective_adjustment no longer computes anything on the halos
2098     - removed the warnings about negative salinity from find_rho.F and
2099       find_alpha.F; instead the new routine look_for_neg_salinity, called
2100       at the beginning of find_rho, find_alpha, and find_beta, does a
2101       check of the entire slice, if CPP-option
2102       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2103    checkpoint46l_pre
2104    
2105    checkpoint46k_post
2106    o fixed the verification/global_ocean.90x40x15 experiment:
2107     - new bathymetry (the world according to A., JMC, and M.)
2108     - new initial fields and forcing fields (*.bin files)
2109     - new POLY3.COEFFS (for the next release one should switch to a full
2110       equation of state: JMD95P or MDJWF)
2111     - fixed several errors and redundancies in the data file
2112     - experiment uses looped cells
2113     - added matlab directory with diagnostic scripts for plotting of output
2114    
2115    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2116     - read AIM physics parameters from a file (data.aimphys)
2117     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2118    
2119    checkpoint46j_post
2120    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2121    o move wVel computation at the end of the time step, in S/R integr_continuity
2122    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2123    o update timeave pkg for wVel diagnostic.
2124    checkpoint46j_pre
2125    
2126    checkpoint46i_post
2127    o Clean up AIM package (and keep the results unchanged):
2128      include CPP_OPTION and use IMPLICT NONE in all routines ;
2129      declare all the variables _RL ; use _d 0 for all numerical constants.
2130      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2131    
2132    checkpoint46h_post
2133    o cleaned up the use of rhoNil and rhoConst.
2134      - rhoNil should only appear in the LINEAR equation of state, everywhere
2135        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2136        and the dynamical equations are all divided by rhoConst
2137    o introduced new parameter rhoConstFresh, a reference density of fresh
2138      water, to remove the fresh water flux's dependence on rhoNil. The default
2139      value is 999.8 kg/m^3
2140    o cleanup up external_forcing.F and external_forcing_surf.F
2141      - can now be used by both OCEANIC and OCEANICP
2142    checkpoint46h_pre
2143    
2144     Added code to convert surface volume flux (fresh water) into
2145     a mass flux when using P coordinates in the ocean (OCEANICP).
2146     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2147    
2148    checkpoint46g_post
2149    o Include a new diagnostic variable phiHydLow for the ocean model
2150      - in z-coordinates, it is the bottom pressure anomaly
2151      - in p-coordinates, it is the sea surface elevation
2152      - in both cases, these variable have global drift, reflecting the mass
2153        drift in z-coordinates and the volume drift in p-coordinates
2154      - included time averaging for phiHydLow, be aware of the drift!
2155    o depth-dependent computation of Bo_surf for pressure coordinates
2156      in the ocean (buoyancyRelation='OCEANICP')
2157      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2158        Theta, Salinity, and Pressure in the parameter list. This routine is
2159        presently contained in find_rho.F. This routine does not give the
2160        correct density for 'POLY3', which would be a z-dependent reference
2161        density.
2162    o cleaned up find_rho
2163      - removed obsolete 'eqn' from the parameter list.
2164    o added two new verification experiments: gop and goz
2165      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2166    checkpoint46g_pre
2167    
2168    checkpoint46f_post
2169    o Enable tangent linear (forward mode) gradient checks:
2170      - extended active file handling to g_... files
2171      - added TANGENT_SIMULATION to theSimulationMode
2172      - extended grdchk package accordingly
2173    o added tangent linear setup in verification/carbon/code_ftl
2174    o added adjoint setup in verification/front_relax/code_ad
2175    
2176    checkpoint46e_post
2177    o Added new equation of state -> MDJWF
2178      - EOS of McDougall et al., 2002, JAOT, submitted
2179      - caveat: the equation of state is only valid for a smaller (more
2180        realistic?) range of values than JMD95P/Z and UNESCO
2181      - added masks to the calculation of pressure in store_pressure
2182      - added more check values for density in check_eos (ini_eos.F), some of
2183        the old check values are out of the range of the MDJWF-eos, so don't
2184        expect perfect matches for those
2185    checkpoint46e_pre
2186    
2187    checkpoint46d_post
2188    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2189      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2190      case of pressure coordinates. eosType='JMD95Z' in
2191      combination with buoyancyRelation='OCEANICP' now causes an error.
2192    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2193      in find_alpha/beta.
2194    checkpoint46d_pre
2195    
2196    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2197      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2198    
2199    checkpoint46c_post
2200    o Changes necessary for ocean in p-coordinates
2201     -  Added new buoyancy relation = 'OCEANICP'
2202     -  Added new parameters = gravitySign (this used to be contained inside
2203        the factor dRdZ which I added when we first switched to R coordinates).
2204     X GM/Redi is not compatible (yet)
2205     X bottom drag and no-slip need to be debugged.
2206    checkpoint46c_pre
2207    
2208    checkpoint46b_post
2209    o Added new equation of state -> JMD95Z and JMD95P
2210      - EOS of Jackett and McDougall, 1995, JAOT
2211      - moved all EOS parameters into EOS.h
2212      - new routines ini_eos.F, store_pressure.F
2213    o Added UNESCO EOS, but not recommended because it requires
2214      in-situ temperature (see JMD95)
2215    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2216      unesco.f to be used with POLY3
2217    checkpoint46b_pre
2218    
2219    checkpoint46a_post
2220    o Added (atmospheric) pressure loading
2221      - new field in FFIELDS.h, etc...
2222      - new cpp flag ATMOSPHERIC_LOADING
2223    o Changed hFacC to _hFacC in calc_phi_hyd.F
2224    o Added SHORTWAVE_HEATING to some files for consistency
2225    checkpoint46a_pre
2226    
2227    checkpoint46
2228    further merges from release1_p5
2229    o new ctrl package
2230      - adopted from ECCO environment to enable optimization
2231      - added Eliassen Palm fluxes to controls
2232    o added Eliassen Palm flux controls to gradient check package
2233    o cost package
2234      - Compatible with new ctrl package
2235      - added Eliassen Palm cost hooks
2236      - modif's of existing cost functions
2237    o Adjoint-related bug fixes in kpp:
2238      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2239      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2240    o autodiff package
2241      - flow directives:
2242        + new for S/R do_the_model_io
2243        + enhanced for S/R checkpoint
2244        + new gmredi.flow
2245      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2246        disable adcommon.h/g_common.h by default.
2247      - fixed problem for adjoint of global_max
2248    o modified verification/carbon/
2249    o New setup for adjoint of global_ocean
2250    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2251    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2252    o incorporated hooks for sponge layer code (external_forcing.F)
2253    
2254    checkpoint45d_post
2255    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2256    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2257      (affects plume_on_slope "cg2d" output)
2258    o add new parameter deltaTfreesurf for free-surface time stepping
2259    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2260    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2261    o change phiMin in exp1 (to agree with documentation)
2262    o add new flags:
2263     - T,S forcing inside/outside Adams-Bashforth
2264     - turn off temp,salt advection and/or forcing
2265     - for each tracer, define internal flag for multiDimAdvection & A-B
2266    o monitor: change definition of KE to check conservation of Energy
2267    
2268    checkpoint45c_post
2269    o Removed f90 comments ("!")
2270    o Modified initialisations to enable exf package for MITgcm
2271      (without invoking ECCO_PACKAGE).
2272    o modifications to gradient check package (Martin Losch)
2273      - enable centered differences
2274      - modified format of standard output
2275    
2276    checkpoint45b_post
2277    o cleaned exchange calls in cg2d
2278    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2279    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2280      to configure barotropic setup (Martin Losch)
2281    o moved some initialisations within bi,bj loop in dynamics
2282      (TAF flow dependency)
2283    o in initialise_varia, moved call packages_init_variables
2284      before convective_adjustment_init
2285      (corresponding adjustment of TAF tape initialisation).
2286    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2287    
2288    checkpoint45a_post
2289    o compute Rho over the whole domain (extend iMin,jMin indices)
2290    o specific exchange for X-slice domain (case Ny=1)
2291    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2292    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2293    
2294    checkpoint44h_post = checkpoint45
2295    o Fix to restore differentiability:
2296      place at which packages_init_variables is called in
2297      initialise_varia is crucial for reverse control flow.
2298    o modifications in GMRedi to enable stable adjoint
2299      (corresponding modif's in thermodynamics, dynamics)
2300    o added missing hook for sponge layer code in external_forcing
2301    o modified test cost functions
2302    o storing in gad_advection (plus removal of write(0,*)!
2303    o missing headers TR1.h added in convective_adjustment routines
2304    o errorMessageUnit set non-equal zero in eeboot
2305      (conflict on some platforms, e.g. IBM SP3)
2306    o modified carbon verif.
2307    
2308    checkpoint44h_pre
2309    o vertical grid option: allow to put the Interface at the middle between
2310      2 cell-centers ; replace delZ in pkg/kpp by drF.
2311    o GM Advective form: Tracers are advected using the residual transport (=
2312      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2313    
2314    checkpoint44g_post
2315    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2316      results) ; ifdef missing in thermodynamics.F
2317    
2318    checkpoint44f_pre,checkpoint44f_post
2319    o added PTRACERS package
2320      This allows an arbitrary number of passive tracers to be integrated
2321      forward simultaneously with the dynamicaly model.
2322      + Implemented so far:
2323        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2324        - I/O and checkpointing
2325        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2326      + Not implemented so far:
2327        - KPP
2328        - OBCS
2329      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2330        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2331        line in data.pkg.
2332      + This package is disabled by default since it increases storage.
2333    
2334    
2335    o testscript: added -cleanup option
2336    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2337                 b) enable to filter 2D fields.
2338    
2339    checkpoint44e_pre,post
2340    o re-wrote convective adjustment to use pre-calculated weights
2341      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2342      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2343      Original calls to convect() still in place.
2344    
2345    chkpt44d_pre,post
2346    o added missing EXCLUDE_MONITOR flags
2347    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2348      (incompatible typ in MIN/MAX expressions caused problems
2349      on IBM SP3)
2350    o in genmake added variable MAKEDEPEND
2351      plus resetting for case SunOS
2352    o added timer_stats.c routine for IBM SP3
2353    o removed variables in dynamics
2354    !!! I forgot to create tag chkpt44d_pre !!!
2355    !!! But chkpt44d_pre = chkpt44c_post    !!!
2356    
2357    o real fresh water flux implemented with non-linear free-surface.
2358    
2359    chkpt44c_pre,post
2360    o few fix (mask in shap_s2, EmPmR in external_field_load,
2361      USE_NATURAL_BCS in solve_for_P);
2362    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2363    
2364    checkpoint44b_pre/_post
2365    o merge of relevant stuff from the ecco-branch:
2366      - genmake: removed $S64 overwrite for case SunOS
2367      - pkg/exf: update and corrections for field swapping and obcs
2368      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2369                  harmonized between ECCO and MITgcm
2370      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2371                      updated checkpointing_lev... lists for obcs
2372      - model/src: minor changes in forward_step, plot_field
2373                   added directive for divided adjoint in the_main_loop
2374      - pkg/mdsio: added mdsio_gl_slice
2375    
2376    o check parameters & config (chkpt44a_pre,post)
2377    o OBC and NonLin_FrSurf.
2378    
2379    checkpoint44
2380    o fix bug in mom_vi_del2uv
2381    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2382    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2383    o update AIM experiments (NCEP input files)
2384    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2385    o added some stuff for AD
2386    
2387    checkpoint43
2388    o added two new advection tests
2389    o added global 4x4 degree ocean test
2390    o added test of H&S94 with free surface on cube
2391    o some final mods for gradient check, adjoint,...
2392    
2393    checkpoint42
2394      Fixed AD-related problems:
2395    o Store directives up-to-date with re-arranged Adams-Bashforth
2396      (mainly thermodynamics.F)
2397    o New store directives for multi-dim. advection schemes
2398      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2399      * new common block and key passkey
2400      (mainly gad_advection.F)
2401    o Modified store directives for split of dynamics/thermodynamics
2402      for the case ALLOW_KPP
2403    o Cleaned argument list for timestep_tracer.F
2404    
2405    checkpoint41
2406    o re-formatted/added comments in prologues of key subroutines
2407      to work with protex
2408    
2409    checkpoint40
2410    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2411    o added FLT (floats) package from Arne along with demo. experiment
2412    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2413      implementation of forward-in-time forcing terms
2414    o more mods for non-linear free-surface including new variable
2415    o modified multi-dim method to work on cube
2416    o bug fix in KPP (from DM)
2417    
2418    checkpoint40pre9
2419    o added DST advection schemes
2420    o fix MPI bug on SGI's
2421    o modifications for non-linear free-surface
2422    o fixed conditionals for fixed flow/passive tracer only mode
2423    o added tension/strain form of stress tensor
2424    o changes to commenting of arguments for TAF/TAMC
2425    o added/updated many matlab scripts
2426    o added multi-dimensional advection method for tracers
2427      
2428    checkpoint40pre8
2429    o new package rw/
2430      Added method for dumping intermediate local arrays:
2431      mdsio_writetile - same as mdsio_writefield except works from inside
2432                        bi,bj loop
2433      mdsio_writelocal - same as mdsio_writetile except works for local
2434                         arrays
2435      write_local_r? - higher-level wrapper for mdsio_writelocal
2436      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2437      Example given at end of mom_vecinv.F that dumps some local arrays.
2438    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2439      control flux-form versus vector invariant code.
2440      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2441      or genmake -DISABLE ...
2442    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2443      (additional storing is now needed for case vecinv;
2444      currently nothing implemented to switch this storing off
2445      in case fluxform is used since no CPP flag available).
2446    
2447    checkpoint40pre7
2448    o bug fix in dynamics.F
2449      calc_viscosity called before k=1,Nr loop.
2450    o added some #ifdef's ALLOW_PASSIVE_TRACER
2451    o cleaned initialisations in ctrl_map_ini
2452      related to TAF
2453    
2454    checkpoint40pre6
2455    o split dynamics into thermodynamics & dynamics
2456    o corresponding split of calc_diffusivity into
2457      calc_diffusivity, calc_viscosity
2458      (kpp_calc_diff, kpp_calc_visc).
2459    o Added diffkr, kapgm to control variables
2460    o bug fix in gmredi_slope_limit for ldd97
2461    
2462    checkpoint40pre5
2463    o proper initialization of Adams-Bashforth time stepping
2464      + uses forward step for very first step of model (iter=0)
2465    o re-generated *all* output since almost all output is modified by this
2466      change (sorry but we've been putting this one off for about 2 years)
2467      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2468        *not* regenerated since they are already out of date and I don't
2469        want to create the impression that they are suddenly working.
2470    o removed KAP stuff for DEC's
2471    o modified/added many .cvsignore files in */code and */input
2472    o added new expt "solid-body.cs-32x32x1"
2473      + this uses an alternative form of ini_curvilinear_grid.F which
2474        is not necessarily any better than the current one...
2475    
2476    checkpoint40pre4
2477    o added re-initialisations of utrans,vtrans,rtrans in
2478      calc_common_factors which are crucial for TAF.
2479    o extended iMin,jMin range for calc_common_factors,
2480      calc_diffusivity
2481    o added option ALLOW_PASSIVE_TRACER
2482    o a few minor updates and fixes
2483    
2484    checkpoint40pre3
2485    o created calc_gtr1.F for gad package
2486    o split the_main_loop and re-introduced forward_step
2487    o some recomputations of nIter0 for TAMC
2488    
2489    checkpoint40pre2
2490    o Updated to latest branch of AJA, JMC
2491    o Added gradient check package
2492    o Added routines for passive tracer handling
2493    o Added carbon sequestration sensitivity experiment
2494    
2495    checkpoint39
2496     o Modifications and fixes to support TAMC
2497       (mainly missing or wrong directives)
2498     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2499       in addummy_in_stepping
2500     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2501     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2502     o Included following packages:
2503       cal: calendar
2504       exf: external forcing
2505       ecco: essential routines to control use of cal, exf
2506             (NB: this is not the full ECCO environment)
2507     o disabled some packages by default in genmake
2508    
2509    checkpoint38
2510     o see notes_c37_adj.txt
2511     o corrected wrong layer index in external_forcing_t
2512     o replaced the_main_loop/forward_step by the_main_loop
2513     o removed forceoutput from write_state
2514       (replaced criteria for initial/final state)
2515     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2516    
2517    checkpoint37
2518     o mdsio.F routine split and packaged in pkg/mdsio
2519       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2520        used unless genmake -disable=mdsio)
2521     o allow a more precise surface-geopotential gradient for the atmosphere
2522       taking into account the change in space of Alpha (=1/rho) at the surface.
2523     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2524       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2525     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2526       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2527       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2528     o Time-Average diagnostics defined as a pseudo package "timeave".
2529     o pickup files : old pickup (before c35) did not work with new code (c35
2530       and after) unless activating 2 commented lines in initialise-varia.
2531     o Non-Hydrostatic pickup file Pb fixed.
2532     o bug with Rigid-lid version (since c35) fixed.  
2533    
2534    checkpoint36
2535     o implement Crank-Nickelson barotropic time-stepping
2536     o recover Time-Average diagnostics
2537     o fix Pb in checkpoint (PR#19)
2538     o AIM become a standard package ; clean unused CPP_kees
2539    
2540    checkpoint35
2541     o subtantial rewrite of dynamics.f
2542     o allows staggered time-stepping
2543     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2544     o added bottom drag (linear + quadratic)
2545    
2546    checkpoint34
2547     o Modified exchange routines for correct reverse simulation.
2548     o Added verification output to comply with bug fix in impldiff.F
2549       as of c33 (exp2, natl_box).
2550     o Corrected store directives in dynamics.F
2551     o Corrected array boundaries in impldiff.F
2552     o Corrected array dimensions in gmredi.
2553       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2554     o Added routine GLOBAL_SUM_INT to global_sum.F
2555     o Added mdsio_gl.F for ECCO purposes.
2556    
2557    checkpoint33
2558     o Fixed bug in lower BC in impldiff.F
2559     o Fixed confusion about units of forcing arrays in FFIELDS.h
2560       namely Fu,Fv,Qnet,Qsw,EmPmR:
2561       - Removed verification/natl_box/code/external_fields_scale.F
2562         (did not differ from that in model/src)
2563       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2564         (see FFIELDS.h for description)
2565       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2566         kpp_calc.F and kpp_transport_t.F
2567       - Removed model/src/external_fields_scale.F and calls to it
2568       - verification/natl_box uses flux data with "atmospheric" sign so
2569         a special version of external_fields_load.F is used to
2570         change the data as it's read in. This way, the arrays
2571         have the right units and signs at all times tha a user could
2572         possibly use them.
2573     o Corrected genmake to delete a temporary file during configuration
2574    
2575    checkpoint32
2576     o Scaling of forcing fields moved from external_forcing.F to
2577       external_fields_scale.F, called directly after loading fields.
2578     o Surface relaxation terms added to surface tendency fields in
2579       extra subroutine.
2580     o impldiff.F changed to avoid storing by TAMC of huge intermediate
2581       fields.
2582     o Changes in GMRedi to comply with packaging structure.
2583     o Modifications and bug fixes in KPP package.
2584     o Verification experiment for KPP added (verification/nat_box/)
2585    
2586    checkpoint31
2587     o Packages interface brought in line with defined standard
2588       -> new routines packages_...F
2589       -> changes in initialise_fixed.F, initialise_varia.F
2590       -> enables initialisation interface for ECCO package
2591     o Rescaling of external forcing fields immediately after read
2592       (removed from external_forcing.F)
2593       -> new: surface_fields_scale.F
2594       -> affects ini_foorcing.F, external_fields_load.F
2595     o Computation of surface tendencies before tendency updates.
2596       -> new: external_forcing_surf.F
2597     o Change of variable names useGMRedi, useKPP, useECCO
2598     o Further changes in dynamics.F, impldiff.F for TAMC
2599     o Tested for experiments 0, 2, 4.
2600       - not yet tested for GMRedi.
2601       - not yet tested for KPP.
2602    
2603    checkpoint30
2604     o Updates for OBCs
2605     o New experiment for test OBCs (internal_wave)
2606     o New output.txt in verification/exp4/results/
2607     o Updates for KPP: calculation of viscosity corrected, new variables
2608       kpp_dumpFreq and kpp_taveFreq
2609     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
2610       and entry for T90 in genmake
2611    
2612    checkpoint29
2613     o packaged KPP and GM/Redi
2614    
2615  checkpoint28  checkpoint28
2616   o Corrected initialization of hFacMin for difference vertical coordinates   o Corrected initialization of hFacMin for difference vertical coordinates
2617   o Modified calculation of partial cell thickness to more robust algorithm   o Modified calculation of partial cell thickness to more robust algorithm

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