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revision 1.32 by adcroft, Thu Nov 30 16:51:40 2000 UTC revision 1.614 by jmc, Fri Feb 24 00:57:55 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 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
8      and based on a reference stratification. Tested within hs94.cs-32x32x5.
9    o seaice advection: add code for choosing between the default (2nd order
10      central differences) and multiDim advection schemes provided by
11      pkg/generic_advdiff
12    o seaice:
13      - removed all references to SEAICE_GRID.h fields from
14        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
15        (cubed-sphere configuration will change a little)
16      - grid computations in seaice_init are obsolete now.
17      - cleaned up code a little so that is easier to read (hopefully).
18      - added new (better?) discretizations of default advection and diffusion
19        (turn on with SEAICEuseFluxForm)
20      - replace 1 in 3d global fields by kSurface in growth.F
21      
22    checkpoint58a_post
23    o seaice:
24      - bug fix in advect.F
25    o shelfice:
26      - separate shelfice load anomaly from pload (breaks with time
27        dependent forcing), => introduce constant field shelficeLoadAnomaly.
28        Its default is 0., but it may be computed more cleverly from (unknown)
29        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
30        done offline. A good approximation of the pressure load anomaly is
31        necessary to avoid large initial adjustment processes underneath
32        deep-reaching shelfice.
33      - small fix in ISOMIP shelfice_thermodynamics
34      - add more sophisticated thermodynamics of Hellmer (1989), this is
35        now the default
36      - give a few constants more intuitive names
37    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
38      if bulk formulae are used in long integration (especially EmPmR). Turn
39      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
40      if balancePrintMean, the imbalance that is substracted is printed to
41      STDOUT.
42    o fix bug (typo) in obcs_apply_eta.F
43    o add a new package shelfice which enables us to model the circulation
44      underneath shelf-ice with draughts of hundreds of meters.
45     - works
46     - to do: + include improved thermodynamics
47              + check whether kSurfC (from model/inc/SURFACE.h) can be used
48                instead of new field kTopC
49              + can we use topoFile, Ro_surf and existing code in ini_depth.F
50                instead of new field R_shelfIce and new code in ini_depth.F
51                and ini_mask_etc.F?
52              + adjust vertical mixing schemes?
53    o seaice pkg:
54     - add a cpp-flag to include a simple formula for a salinity dependent
55       freezing point of sea water at the surface
56     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
57       meridional stresses are now different (and hopefully correct)
58    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
59       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
60       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
61    o pkg/diagnostics: add options and parameters for regional-statistics
62       diagnostics ; define regions by reading a region-mask from a file
63       (might add other options later)
64    o pkg/bulk_force:
65     - add option and parameters to use AIM surface-flux formulae.
66     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
67       others forcing fields (defined in PARM05, parameter file "data") are loaded
68       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
69     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
70     - use the right EXCH call for uwind,vwind (to work on CS-grid).
71     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
72       and parameters (note: calcWindStress replaces .NOT.readwindstress).
73     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
74    
75    checkpoint58
76    o add "--embed-source" option to genmake2 which, when the supporting
77      tools can be compiled (as determined by genmake2) will turn on the
78      embed_files package which then embeds the entire MITgcm source code
79      (*.[fFhc] + Makefile) used for the build within the executable
80      - requested by CNH but off by default
81      - adds a paltry <9MB to the mitgcmuv executable in most cases
82      - only writes the output when useEMBEDSRC in eedata is true
83    o clean up 3-dim. relaxation codes:
84      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
85      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
86      * Thanks to Tom Haine for testing!
87    
88    checkpoint57z_post
89    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
90      affects output (@ truncation level) of exp. plume_on_slope ; updated.
91    o fix the pickup behavior for obcs in combination with ptracers
92    o fix a bug in ptracers_external_fields_load
93    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
94      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
95    o transfered surface NH pressure to eta field (if exactConserv).
96    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
97         and update lab_sea output.txt file.
98    o completing 3-dim. relaxation code: additional term
99         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
100      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
101      * At compile time, in "EXF_OPTIONS.h" set
102          #define  ALLOW_CLIMTEMP_RELAXATION
103          #define  ALLOW_CLIMSALT_RELAXATION
104      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
105          tauThetaClimRelax3Dim = 15552000.0,
106          tauSaltClimRelax3Dim  = 15552000.0,
107      * 3 cases:
108          1) Use a constant-in-time 3-dim. field
109          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
110          3) Real-time relax. to time-evolving prescribed field
111    o Adding Laplacian-type smoothness constraint on
112      initial and boundary (forcing) controls (ic, bc)
113      * enable at compile-time via
114        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
115      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
116      * Absolute scale somewhat unclear so far
117      * no area weighting was included since no other cost term does so far
118    
119    checkpoint57y_post
120    First step for a NLFS adjoint
121    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
122    o new init. routines for calc_r_star, calc_surf_dr
123    o still need to deal with ini_masks_etc
124    o testreport seemed happy
125    checkpoint57y_pre
126    
127    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
128    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
129    o add new offset feature to offline pkg (plus minor cleanup)
130    o cfc fixes for final year of integration
131    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
132      be in GCHEM_OPTIONS).
133    
134    checkpoint57x_post
135    o fix testreport Pb in multiple test experiment.
136    o cleanup our namelist syntax in verification:
137      - make it more F95 standards compliant (some work still needed)
138      - allows the vast majority of our tests to work with gfortran
139    o Non-Hydrostatic:
140     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
141     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
142    o Allow to apply AB on T,S rather than on AB(gT,gS):
143     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
144     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
145       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
146     - need a "clever" read_pickup to restart from the other AB formulation
147    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
148    o remove some unused variables (reduces number of compiler warnings)
149    o adjoint
150      * Disable useVariableViscosity for adjoint for time being
151        (there are a number of extensive recomputations)
152      * Initialize certain variables needed for adjoint
153    
154    checkpoint57w_post
155    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
156                 fix the singleCpuIO RS version of MDSWRITEFIELD
157       and add a WARNING if using globalFiles=T with multi-processors.
158    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
159      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
160    o tracer advection scheme:
161      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
162       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
163       was not very convenient).
164      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
165       (further tests needed for the implicit DST & Flux-Limiter schemes).
166    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
167      and sRef for convenience, handy, when you want to initialize
168      ptracers in a large domain with a constant non-zero value. Also,
169      untangle ptracers_init.F a little.
170    
171    checkpoint57v_post
172    o change dome exp. to use variable viscosity in side-drag terms.
173    o remove all the files from the cfc_offline test since they are now
174      incorporated into tutorial_cfc_offline which has been producing
175      identical results for a few days of testing
176    o add new parameter: sideDragFactor to enable half-slip-side BC
177      and change side-drag S/R to use viscosity from mom_calc_visc
178      (can switch back by setting sideDragFactor=0.); affects results at
179      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
180       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
181    o vorticity & strain are now computed without masking, to account for
182      no-slip-side BC in variable viscosity calculation ; mask is applied
183      anyway later on, before computing advection/coriolis terms.
184    o modify exp4 to test new obcs support for reading from external files
185      and for passive tracers
186    o fix behavior of ptracers_monitor when monitor output is written to a
187      netcdf-file; still not independent of monitor.F (writes in the same
188      file).
189    o change default value of tRef (put a uniform, meaningful value for ocean
190      & atmos) and initialize sRef (was missing, as Martin mentioned).
191    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
192      to be proportional to enstrophy dissipation length.  Thus,
193       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
194      This is now consistent with Smagorinsky and with the manual.
195    
196    checkpoint57u_post
197    o OBCS and PTRACERS: add open boundary support for passive tracers
198      - either use homogenous (pseudo) v.Neumann conditions or prescribe
199        OB-values from file; this is not different from the way theta and salinity
200        are treated
201      - however, Orlanski-radiation conditions are not supported, and the model
202        will stop if you use pTracers and Orlanski at the same time.
203      - beefed up the rountine obcs_external_fields_load: now only those open
204        boundary values are overwritten with values from files for which there
205        are really files, otherwise the OB-fields remain untouched. This makes
206        it possible to use different OBs at different ends of the domain (as
207        with EXF)
208    o reduce number of exch calls in shap_filt (s2).
209    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
210      truncation level) 4/5 MLAdjust test results (11&12 digits match).
211    
212    checkpoint57t_post
213    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
214    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
215      same truncation, independent of the face number: affects affects several
216      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
217    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
218      note that biharmonic viscosity + no-slip was not tested in any experiment.
219    o fix bug in non-linear free-surf side-drag ; generate new output for
220      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
221    o make mnc honor the writeBinaryPrec flag for most kinds of output
222    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
223    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
224      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
225    o add brackets in multi-terms sum to get same truncation, independent of
226      the face number (manage to get exactly same value of gU,gV at the cs-edge)
227      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
228    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
229      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
230      a maximum grid-scale Reynolds number.  Also, changes all length calculations
231      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
232      Suggested values of viscosity parameters found in mom_calc_visc.
233      Many new viscosity diagnostics available.
234    
235    checkpoint57s_post
236    o Add clearing-house for viscosity calculations, mom_calc_visc and
237      correct numerous bugs in LeithD and Smagorinsky discretizations.  
238      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
239      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
240      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
241      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
242      The Strain-Tension form is now called with useStrainTensonVisc=.true.
243      ViscAhStrain and viscAhTension are now retired.
244    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
245    o In response to JMC's bug report, genmake2 now ignores any soft-links
246      that it finds in the *current* directory when searching for files.
247      Soft-links found in any other source directories will still work as
248      they did before.
249    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
250      a C routine to unlimit the stack size
251    o mnc-ify pkg/aim snapshot vars
252    o mnc-ify pkg/land as requested by Daniel
253    o various changes to mnc including:
254      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
255      - output can now be grouped so that all files within a group
256          change the ITER portion of their names in lock-step together
257      - can now read ("global") PER-FACE (in addition to PER-TILE) files
258          and works with both EXCH1 and EXCH2 (but needs more testing)
259      - writing works for all verification test cases w/ g77 on Linux
260    
261    checkpoint57r_post
262    o make MNC variable initialization happen earlier
263    o add diagnostics for (almost) each term of the momentum Eq.
264    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
265    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
266    o remove MINIMAL_TAVE_OUTPUT option ;
267      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
268    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
269      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
270    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
271    o add time-dependent SST, SSS control
272    o cost terms in ecco/ modularized (new cost_generic.F)
273    o cost_averages routines are modularized (new cost_averagesgeneric.F)
274    o new infrastructure for seaice model vs. obs misfits in seaice/
275      * driver from the_main_loop.F is seaice_cost_driver.F
276      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
277      * gradient check in Exp. 6a of natl_box_adjoint/
278    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
279      (see README file)
280    
281    checkpoint57q_post
282    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
283    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
284      - bug was reported by Jean-Michel and Ian Fenty
285    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
286      update exp. cpl_aim+ocn output.
287    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
288      Needed for high-res. runs with large global files
289      to be able to limit tapelev size
290    o Changed some tests for adjoint:
291      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
292      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
293      * global_ocean.90x40x15/ back to default 3-level checkpointing
294    o Modifications to enable scripted COMMON to MODULE conversion
295      * verification/OpenAD/code/ has necessary scripts and description;
296      * converts, compiles and runs successfully;
297    
298    checkpoint57p_post
299    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
300    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
301      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
302    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
303    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
304      (was already the case for dissipation with mom_vecinv,
305       and also the case for grad.PhiHyd when staggered-timeStep)
306      This will allow to put dissipation out-off the AB time-stepping.
307     Unfortunately, affects truncation error. Update output of exp. that "fails"
308      (cg2d matching number) and leave the others for later: front_relax(10),
309      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
310      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
311    
312    checkpoint57o_post
313    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
314      (2) its ready to be documented during the 20050801 DocFest
315    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
316      for ideal_2D_oce and lab_sea on linux_ia32_g77
317    o set to #undef CTRL_SET_OLD_MAXCVARS_30
318      in global1x1_tot/code_seaice_adj to access indices 32, 33
319      (worth another tag)
320    
321    checkpoint57n_post
322    o adding precip control xx_precip 32
323    o adding swflux control xx_swflux 33
324    o Replacing 10 forcing penalty cost routines by 1 generic.
325    o Implementing partitioning in time-mean and variable adjustment
326      for atmos. state.
327    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
328    o in natl_box_adjoint:
329      * updated exp 1 to 10
330        (but does not have time-mean vs. variable split results yet)
331    o updated global1x1/*_seaice_adj/
332      to incorporate latest changes
333    o enable useSingleCpuIO for mdsio vector routines
334      (applies in particular to tapelev I/O)
335    o removed inefficient K-loop in all active_file*control*.F
336    
337    checkpoint57m_post
338    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
339      and advect_cs (use EXCH-2 and standard cs-32 grid files).
340    o pkg/exch2: filling of face-corner halo regions is optional
341      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
342    
343    checkpoint57l_post
344     tag before updating tutorials (pre-release-2)
345    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
346       for output and interpolation of input fields onto model grid)
347    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
348       Affects results of exp. rotating_tank ; update output.txt.
349    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
350          and taking the square quantity and/or using a fraction-weight field.
351    o fix aim_diagnostics_init.F mate numbers.
352    o add mnc output capability to diagnostics/diagstat and update
353      our cvsignore files for the ACSII output generated
354    
355    checkpoint57k_post
356    o lab_sea now uses diagnostics package and provides a suite of
357      new EXF diagnostics output.
358    
359    checkpoint57j_post
360    o exf
361      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
362        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
363        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
364      * extended diagnostics output
365        - now includes all EXF variables
366        - hs, hl moved to common block
367        - separate S/R for diagnostics, called after ctrl vector is added
368        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
369        - EXFqnet contains true Qnet (i.e. includes qsw)
370      * updated verif. lab_sea, global_with_exf
371      * Rearranging hflux (exf_mapfields -> exf_getforcing)
372        to ensure that diagnostics sees a true EXFqnet
373    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
374    o diagnostics pkg: change pointers so that 1 diagnostic can be used
375      several times with different frequencies.
376    o mnc-ify the thsice package as requested by Daniel Enderton
377      - the monitor--MNC output needs work
378      - many attributes need to be added (most are currently blank)
379    o mnc-ify theaim_v23 package as requested by Daniel Enderton
380      - many attributes need to be added (most are currently blank)
381    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
382    o add Sadourny like discretization to the 4th.O vorticity advection scheme
383    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
384      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
385         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
386    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
387     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
388    
389    checkpoint57i_post
390    o Diagnostics package was changed: diagnostic allocation is now deactivated
391      by setting an empty file name in the namelist (used to be by setting 0 frequency)
392    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
393      add 1rst Order upwind vertical Shear.
394    o add a quick fix for A/B checkpointing in OFFLINE mode
395    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
396      end-run around the C/Fortran linking horror in eesup/src/timers.F
397    o added pkg/runclock: allows user to terminate run based on wall clock
398    o added non-hydrostatic scaling parameter: nh_am2
399    o pkg/my82: futile attempt to make results compiler-independent by adding
400      some "_d 0", etc. no effect.
401    o for mnc output, fill the 'T' coordinate var with myTime and create a
402      separate 'iter' variable for iteration count
403    o pkg/diagnostics:
404      add new capability: output of Global/Regional & per-level statistics ;
405      tested against monitor output (including land & thSIce) on various exp.
406    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
407    
408    checkpoint57h_done
409      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
410      data.diagnostics, data.gchem, data.ptracers) is done.
411    
412    o pkg/diagnostics: prepare for Global/Regional statistics.
413      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
414    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
415      and rename it: DIFFERENT_MULTIPLE
416    
417    checkpoint57h_post
418    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
419    o pkg/diagnostics: change output frequency, now in seconds (instead
420      of Nb of iterations). This requires to change data.diagnostics.
421    checkpoint57h_pre
422    
423    o in mnc, let the user create the output dir if both mnc_outdir_date
424      and mnc_outdir_num are false
425    o add fflags() to pkg/diagnostics which allows one to specify, on a
426      per-file basis, the file precision [default behavior is unchanged]
427    o added diagnostics to pkg/kpp, including computation of mixed layer
428      depth based on a temperature/density criterion
429    o updated verification/natl_box to test the new pkg/kpp diagnostics
430    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
431    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
432    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
433      not mnc -- this mistake was found by JMC and is now corrected
434    
435    checkpoint57g_post
436    o add Adams-Bashforth 3rd Order time stepping:
437      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
438      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
439    checkpoint57g_pre
440    
441    o make lambda[Theta,Salt]ClimRelax spatially varying
442      (default remains spatially uniform constant based on tau)
443    o added new control variables
444      * init. uVel, vVel, etanN
445      * lambda[Theta,Salt]ClimRelax
446    o separate masks used for ctrl_pack/unpack 'from write_grid' output
447      (suggested by G. Forget)
448    
449    checkpoint57f_post
450    o add parameter "baseTime" = model base time = time at iteration zero
451      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
452      account for baseTime shift
453    o move Coriolis arrays from PARAMS.h to GRID.h
454    checkpoint57f_pre
455    
456    o mnc-ifying the seaice package
457    o introduced an alternative length scale calculation for use in the limiting
458      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
459    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
460    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
461      as well as grad(vort3).  Made it compatible with both approximate form
462      for the cubed sphere and full form of these gradients.  Added flag
463      useFullLeith to select between approximate and full form.  
464    o add "d0" in getcon.F to reduce differences between compilers/platforms
465      update output.txt of exp. fizhi-gridalt-hs
466    o change port_rand funtion to allow to set the seed.
467    o fix obscure MNC bug involving conversion between reals and integers
468      - it caused no problems with certain (eg. gcc, ifc) compilers but the
469        new version is now more standards-compliant
470    o adjoint-related modifications
471      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
472      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
473      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
474    
475    checkpoint57e_post
476    o Adding eddy stress controls a la Ferreira et al.
477    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
478    
479    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
480      update output.txt of exp. fizhi-gridalt-hs
481    o add more "Z" dimensions and associated coordinate vars to MNC
482    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
483    o parameter calendarDumps: when set, approximate months (30-31 days) and years
484      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
485      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
486      months and years.  Requires pkg/cal.
487    o diagnostics: add pickup functionality
488      - off by default for backwards compatibility
489      - current version only uses MDSIO -- MNC will be added
490    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
491    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
492    
493    checkpoint57d_post
494    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
495    o modify verification/ideal_2D_oce so that it tests the creation of mnc
496      output from the diagnostics package
497    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
498    o make genmake2 more portable by using ".$FS" instead of ".f" for more
499      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
500    o add coordinate variables to the MNC output from the diagnostics package
501    o change MNC-flags default value: true when useMNC=TRUE
502    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
503      the ability (off by default) to read the grid information using MNC
504    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
505    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
506    o do snap-shot diagnostics at the middle of the time-interval (instead of
507      at the end).
508    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
509      new test for AIM with thSIce + slab-ocean
510    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
511    o move state variable diagnostics to the beginning of the time step ;
512      (note: still needs some work specially for snap-shot diagnostics)
513      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
514    
515    checkpoint57c_post
516    o Change testing option (-ieee) to get closer agreement between g77 & ifort
517    o generate new output.txt files on faulks with g77 & the new -ieee option
518    checkpoint57c_pre
519    
520    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
521      update output.txt of exp. global_ocean.90x40x15
522    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
523      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
524    o add saltFlux(+File) forcing capability with periodicExternalForcing
525    o allow to use pkg diagnostics for GM-Redi & ThSIce output
526    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
527    o improvements for the MNC output from DIAGNOSTICS:
528      - correct handling of the unlimitied dimension
529      - all dims now have associated coordinate variables
530      - variables located at U, V, and Corner ("Z") points are now written
531        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
532        *all* data points are output
533    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
534    o added pkg/seaice/seaice_monitor.F
535    o mdsio_readfield.F can now read files visible only to master MPI process.
536    o pkg/seaice: some test code for ice-modified ocean stress
537    o exf_getffields interpolation defaults to bilinear for all scalar forcing
538      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
539      spurious negative numbers for precipitation and humidity.  Will cause
540      some small numerical differences for integrations using pkg/exf/exf_interp.F.
541    o pkg/ctrl/
542      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
543        May be enabled via doPackDiag
544      *  introduce z-scaling of
545         + gradient (doZscalePack) and
546         + control (doZscaleUnpack)
547    o pkg/mdsio/
548      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
549      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
550    
551    checkpoint57b_post
552    o simplify options in diagnostics_fill arguments (remove weird combinations)
553    o fix MNC coordinate variables so that they now contain per-face index
554      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
555      general, EXCH2 grids are only aligned to a "local" coordinate system
556    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
557    o Implement instantaneous output within pkg diagnostics:
558      setting a negative frequency in data.diagnostics produces
559     "snap-shot" output (as opposed to time-average if freq > 0)
560    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
561      NOTE: change ptracer diagnostics name: use 2 characters to work with
562            more than 9 tracers. Add also diagnostics of advect & diffus flux.
563    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
564      becomes the coordinate variable for the 'T' dimension
565    o add CF-style coordinate variables to MNC
566      - just a first cut:  numbers are meaningless on the cubesphere and
567        missing along the T axis but otherwise it works!
568    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
569    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
570    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
571      this is based directly on what the model compute, so that the content of
572      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
573    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
574    o clean up build options files for SunOS, in particular
575      - remove -traditional from xmakedepend
576      - change -xarch=v9 to -xarch=native for f77
577      - restore use of make (not gmake)
578      - add CC=gcc if using g77
579    o changes per discussion of AM, JMC, & EH3 today:
580      - move redundant "grid" variables out of "state" -- in preparation of
581        creating proper CF-style coordinate variables and in recognition
582        that any/all grid variables can be easily copied (eg. w/NCO) from
583        the grid files into any of the other NetCDF files
584      - *always* output grid variables with MDSIO (this will eventually be
585        changed)
586      - output MNC grid file if useMNC is true
587    o every instance of _END_MASTER() has been found and replaced with
588      _END_MASTER( myThid ) in order to satisfy certain picky Sun
589      preprocessors
590    o re-arrange diagnostics pkg initialisation:
591     - allow each package to extend the available diagnostics list
592     - add some checking and fix small problems (multi-threaded, ...)
593     - new S/R diagnostics_fill (replace fill_diagnostics):
594       look through the short list of active diag. (instead of the long list)
595       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
596    
597    checkpoint57a_post
598    o this set of changes restores TAMC compatibility
599      tested for global_ocean.90x40x15 adjoint on trough
600      (what a pain)
601    
602    checkpoint57a_pre
603    o some modifs in tools/build_options for sunos
604    o call ctrl_pack for ctrl at end for optimcycle=0
605    
606    checkpoint57
607    o add horizontal bi-harmonic viscosity for vertical velocity
608      - new parameter viscA4W (defaults to viscA4)
609      - affects only non-hydrostatic code
610      - to be done: no-slip lateral boundary conditions
611    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
612    o implement Implicit Vertical advection for pTracers
613    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
614      (implemented also for implicit vertical diffusion & advection)
615    o OBCS: extend application of tracer open boundary conditions
616      to a strip beyond the boundary of width Olx/Oly
617    o add call monitor to TAF set of required calls (flow directives)
618      and include in natl_box_adjoint
619    o untangle a few ifdefs related to cost, ctrl, autodiff
620      untangel a few ALLOW_ECCO_OPTIMIZATION
621    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
622      (theta2, salt2 in ecco_cost_weights)
623    
624    checkpoint56c_post
625    o OBCS as control variables
626      - update ctrl_ad_diff.list, obcs_ad_diff.list
627      - remove balance of obcs controls from default
628      - fix index bug nobcs in ctrl_init
629      - fix dummy fields filen in ctrl_pack
630      - add dummy weights for obcs
631    o lsopt: comment out fort.94 output
632    o optim:
633      - remove unnecessary header files
634      - adjusted namelists
635      - add xerbla.F to Makefile
636    o exf:
637      - multiple modifications of exf_check_range
638      - unit change in exf_init_runoff from [m/year] to [m/s]
639    o mdsio:
640      - i/o-vector change debugLevel from debLevA to debLevB
641    
642    checkpoint56b_post
643    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
644      is called from DO_THE_MODEL_IO
645      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
646      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
647      - clean up PTRACERS_WRITE_TIMEAVE a little
648    o add another verification experiment that tests both the cfc-pkg and
649      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
650      reactive tendencies treated inline with regular timestepping
651    o testreport previously did a lousy job of comparing small numbers, so
652      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
653      implemented in the little c-progam tmp_cmpnum.c which is embedded in
654      testreport.
655    o ptracers_monitor: bug fix for MPI
656    
657    checkpoint56a_post
658    o GCHEM: finish reorganizating the package
659      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
660        (introduces another 3D-array for each passive tracer, but only if
661        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
662        gchemTendency is not needed because the timestep is done separately)
663      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
664      - GCHEM is now---more or less cleanly---separate from PTRACERS
665      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
666        so clear to me how that should be done in a general way.
667    o CFC: improve formatting of output in CFC_ATMOS
668    o PTRACERS:
669      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
670        that ALL experiments with ptracers enable can be checked. This makes
671        GCHEM_MONITOR obsolete.
672      - include a runtime parameter PTRACERS_monitorFreq that defaults to
673        monitorFreq
674      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
675    o add PTRACERS (PTR0[1-5]) to testreport output
676    o exf_check_range:
677      * default changed to .TRUE.
678      * will check values for niter0 if debLevA, every timestep if debLevB
679      * STOP in exf_check_range if 'out of range'
680      * range chosen generous to allow for potential extema
681      TBD: a version with stricter range
682           permitted range would be runtime parameters
683    o GMredi:
684      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
685      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
686      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
687    o GCHEM:
688      - move call to GCHEM_FORCING_SEP, so that it is now called before
689        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
690      - introduced a useGCHEM runtime flag and applied it everywhere.
691      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
692        this flag is now only visible within GCHEM-pkg routines.
693      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
694        be replaced by a 3D array that is computed before thermodynamics; for
695        this, the tracer ID iTracer had to be included into the parameter list
696        of ptracers_forcing
697      - set up forward_step to call gchem_forcing, that will replace
698        gchem_forcing_int in ptracers_forcing
699      - cleaning up
700    o small cleaning of exch2: remove files that are also in eesupp/src
701    
702    checkpoint56
703    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
704    o mnc: cleanup "full" files--fixes out-of-memory problem
705    o ECCO-GODAE
706      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
707      * fully merged and updated from SIO code
708        windstress sign change affects
709        - exf_inscal_[u/v]stress
710        - sign of xx_tau[u/v] adjustments
711        - signs in cost_scat
712      * ctrl_get_gen: avoid update of tau[u/v] for first few days
713      * natl_box_adjoint updated and compressed
714      * 2-level checkpoint switch added
715        (tested in EXP. 1 of natl_box_adjoint)
716      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
717    o SVD
718      * first complete, non-hacked version for SVD calculations
719      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
720        performed via direct access files admtlm_vector.it????
721        (via ctrl_[un]pack)
722      * optimcycle is used for ARPACK iteration counter
723        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
724      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
725        and add linear transforms where necessary
726      * controls are initial/final SST, SSS (can be extended; need to check
727        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
728    o mdsio: filename info to both stderr, stdout
729    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
730      from sign change
731    
732    checkpoint55j_post
733    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
734      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
735    o add consistent build directories and .cvsignore files to verification
736    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
737    o make all subroutines 30 or less characters in length for certain older
738      compilers to work (a thorough search only turns up two routines in
739      pkg/ptracers)
740    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
741      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
742    
743    checkpoint55i_post
744    o change arrays for total vertical diffusivity (2.D if explicit,
745      3.D if implicit) ; each ptracer uses its own background value.
746    o added mnc/NetCDF output capability to ocn_compon_interf
747      - added bits to verification/cpl_aim+ocn so that it can run on
748        ITRDA and other clusters without the mpirun "-wd" option
749    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
750      configuration
751    o give MNC the ability to create additional files rather than
752      exceeding a specified file size limit "MNC_MAX_FILESIZE"
753      - the default is just less than 2GB which is a practical limit
754        on many systems
755    o Compute the non-local term using either KPP vertical diffusivity (=default)
756       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
757    
758    checkpoint55h_post
759    o add verification test "vermix"
760    o remove all the *_ioinc flags and replace with the single global
761      outputTypesInclusive flag
762    o allow to set a vertical profile of vertical diffusivity for T & S
763    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
764    o useMNC moved from data.mnc to data.pkg
765    
766    checkpoint55g_post
767    o Renaming carbon AD experiments to comply with testreport conventions
768    o Updating adjoint of Held-Suarez hs94.1x64x5
769    o Fixing directives for non-ECCO forward_step, after ECCO directives
770      have been fixed to avoid recomp. of do_oceanic_phys
771      Works well for global_ocean.90x40x15,
772      but recomp. issue remains for carbon
773    o Updating adjoint output for natl_box_adjoint after
774      pkg/ecco has been modified (see taga c55d_post)
775    
776    checkpoint55f_post
777    o rename to timeave_init_fixed
778    
779    checkpoint55e_post
780    o some delicate re-shuffle of store directives to avoid one
781      extra call of do_oceanic_physics
782      affects ecco_the_main_loop.F, do_oceanic_physics.F
783      checkpoint_lev1_directives.h
784    o NB: this may break global_ocean adjoint temporarily,
785      but it is clear how to fix it. Will do later, need this now.
786    
787    checkpoint55d_post
788    o ECCO specific cost function terms (up-to-date with 1x1 runs)
789    o ecco_cost_weights is modified to 1x1 runs
790    o modifs to allow observations to be read in as
791      single file or yearly files
792    o enable to read exf forcing fields as either
793      single file or yearly files (flag useExfYearlyFields)
794    checkpoint55d_pre
795    
796    o switch between 2-level and 3-level checkpointing
797    o add ability of MNC to write local and "partial" (eg. 2D slices where
798      the full 3D field is never actually stored) arrays to NetCDF files
799      with the correct (that is, the complete multi-dimensional) set of
800      array indicies
801      - used in mom_vecinv() to write the diagFreq output
802      - tested (demonstrated) in verification/aim.5l_cs
803    o further mnc-ification
804      - add verification/lab_sea to the list with mnc setups
805      - fix undefined mnc v-names in cd_code
806      - add kpp to mnc output (both snapshot and timeave)
807    o non-hydrostatic code
808      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
809        in calc_gw.F
810      - defaults to viscAh
811      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
812        friction or Leith) in non-hydrostatic mode, as long as there is
813        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
814    o pkg/cost
815      extend simple cost functions to treat time mean quantities
816      (T,U,V) via cost_accumulate_state from cost_tile
817    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
818        be 2 times larger than the minimum size the advection scheme requires.
819        now get a perfect conservation of salt in advect_cs test-exp (updated)
820    o GGL90 (Gaspar's TKE mixed layer)
821      - add horizontal diffusion of TKE, requires exchanges in
822        do_fields_blocking_exchanges, horizontal diffusivity is zero by
823        default. In OPA there is no horizontal diffusion of TKE but the
824        mixing coefficients are computed from a horizontal average of TKE of
825        6 points or so. I think that diffusion has a little more physical
826        justification.
827      - clean up ggl90_calc in the hope of reducing memory usage (this hope
828        was in vain)
829      - mask tke-variable in ggl90_init
830    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
831    o fix biharmonic diffusion on CS-grid.
832    o more obcs stuff
833      - added obcs_external_fields_load as an alternative to the EXF-pkg option
834        for reading boundary values. This routine is called from
835        obcs_prescribe_read
836      - updated obcs_check
837      - changed sponge layer relaxation parameter units for days to seconds
838      - turned off sponge layer by default
839      - changed argument list of OBCS_CALC to myTime+deltaTclock
840      - fixed about 35 bugs in obcs_external_fields_load
841    
842    checkpoint55c_post
843    o obcs stuff
844      - new runtime flags useOBCSprescribe, useOBCSbalance
845      - re-arranged obcs_calc
846      - moved exf_getobcs to obcs_prescibe_read
847        obcs_prescibe_read is called after ORLANSKI stuff
848        and independent of it (executable can contain all).
849      - updated obcs_check
850      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
851        These may be necessary only if tangential velocities are
852        prescribed at OB, not sure, needs testing.
853    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
854      which simplifies the calls and passes the ifc check-bounds test
855    
856    checkpoint55b_post
857    o add a 2D scalar, Z location, exchange_2 routine.
858    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
859      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
860      affects advect_cs results (for the wrong reason): update output.txt
861    o use a more standard discretization for biharmonic viscosity ;
862     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
863      affects results of dome set-up: update output.txt
864    o fix gad_advection.F (CubedSphere part), back to version 1.23
865    o fix bug in mom_vi_del2uv.F (CubedSphere part).
866    
867    checkpoint55a_post
868    o merged code to
869      * prescribe/read time-dependent open boundaries
870        (works in conjunction with exf, cal)
871      * sponge layer code for open boundaries
872      * each boundary N/S/E/W now has its own CPP option
873        (healthy for the adjoint)
874    
875    checkpoint55
876    o up-to-date adjoint of previous breaks
877      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
878      - global_ocean_ebm: adjoint still needs fix (TLM ok)
879      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
880      - carbon: * remove tr1-related adjoint verification
881                * add ptracer as control variable
882    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
883      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
884    
885    checkpoint54f_post
886    o in verification/carbin/ remove experiment related to
887      ALLOW_PASSIVE_TRACER (array tr1 etc)
888      code_ad/ input_ad/ results_ad
889    
890    o add two new packages
891      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
892        + subject to optimization (memory)
893      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
894        + subject to reordering (many GOTOs in the original code)
895        + so far opps is called for every (i,j) point, and then operates in
896          the vertical; one may want to reorder the scheme in order operate in
897          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
898          fields)
899    o overhaul of IO so that we now have flags for MDSIO and/or MNC
900      - all verification tests compile and run with linux_ia32_g77
901      - defaults are compatible with current input files--nothing
902        should change if you were not previously using MNC
903      - MNC output has been added in numerous places (eg. timeave)
904        but there are still a few writes not yet do-able with MNC
905        (this is in progress)
906      - flags now allow for either/or/both use of MDSIO and MNC and
907        documentation will soon follow
908      - numerous small formatting cleanups for ProTeX
909    o add version info (via BUILD_INFO.h) to MNC and stdout
910    
911    checkpoint54e_post
912    o add two new packages
913      - pp81 (Packanowski and Philander, 1981), Richardson number and
914        stratification dependent mixing
915      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
916      - these scheme operate in a similar manner as KPP (without ghat, of
917        course), however there is only one diffusivity that is used for both
918        temperature and salinity (and passive tracers)ç
919    o add offline package
920    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
921      provided by Stephanie Dutkiewicz
922    o genmake2: add ability to search for C compilers and cleanup test output
923      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
924    
925    checkpoint54d_post
926    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
927    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
928      leading to additional shift by 5 days each year of integration
929       (i.e. leading to considerable offset over the years)
930    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
931    o start with no AB and no initial filtering (staggerTimeStep):
932      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
933    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
934      (external loading & cpl import/export stay in forward_step.F)
935    o update coupling interface to work with new staggerTimeStep
936    o change MDSIO ptracers_pickup.
937    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
938    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
939    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
940    
941    checkpoint54c_post
942    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
943      this affects (truncation error) output.txt of test-exp:
944       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
945    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
946    o change Qnet to always be the net heat flux, (+upward).
947      affects (truncation error) output of natl_box exp.: updated
948    o define the max number of passive tracers in PTRACERS_SIZE.h
949    o start to test mnc routinely in exp0
950    o add sea-ice loading (sIceLoad) as a new forcing field.
951    
952    checkpoint54b_post
953    o add testreport "-j JOBS" option for parallel builds (tested and pretty
954       impressive on Altix and Opteron systems)
955    o diagnostics can now write NetCDF files through the mnc package
956    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
957    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
958    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
959      affects (truncation error) output of lab_sea & natl_box exp.: updated
960    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
961    
962    checkpoint54a_post
963    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
964    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
965    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
966    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
967      + internal_wave (shift in writing cg2d_ini_res)
968    checkpoint54a_pre
969    
970    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
971      - modified verification/lab_sea and natl_box_adjoint accordingly
972    
973    checkpoint54
974    checkpoint53g_post
975    o prepare splitting of thermodynamics: store convect.counter in common block
976    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
977      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
978    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
979    o new parameter "nShapS": allow to treat differently S from T (nShapT)
980    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
981    o restore adjointability
982    
983    checkpoint53f_post
984    o modifications that affect AIM experiment results (update output.txt):
985      - no advection of S at top interface Nr (pkg/generic_advdiff)
986      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
987    o AIM pkg:
988      - include stability function into surf.Flux derivative relative to Tsurf
989      - calculate clear-sky radiation & surface temp. change (for diagnostics)
990    
991    checkpoint53e_post
992    o merged cylindrical coord configuration
993    o added rotating_tank experiment
994    checkpoint53e_pre
995    
996    checkpoint53d_post
997    o faulks upgraded: re-generate output.txt that have changed:
998       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
999    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1000    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1001    o added Sadourny discretization of Coriolis
1002      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1003      - re-enabled use of omega3 (useAbsVorticity)
1004    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1005      vector-invariant equations
1006      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1007    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1008      hopefully without new bugs
1009      - still to do: biharmonic friction for non-hydrostatic w
1010    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1011    o regenerated output for global_ocean_ebm (using -ieee)
1012    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1013      of mom_common/
1014      - simple re-arrangement of instructions within computing loop
1015    checkpoint53d_pre
1016    
1017    checkpoint53c_post
1018    o new version of coupler for AIM+thSIce and Ocean models
1019     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1020     - land: change Evaporation of snow
1021     - aim with thSIce: fix bug in snow-precip.
1022    o changes to calc_gw.F
1023     - bug fix for w^2 term near the bottom boundary
1024     - (hopefully) improve the lateral slip boundary condtions for use with
1025        partial/looped cells
1026      - because the bug fix changes two verification experiments anyway (exp5
1027        and plume on slope), change the lateral boundary condition from half slip
1028        to the value of no_slip_sides
1029    o ebm package wasnt quite up to the parallel task. Fixed that.
1030    o Adjoint of EBM package + verification
1031      * TLM OK
1032      * ADM not sufficient accuracy yet (needs further testing)
1033    
1034    checkpoint53b_post
1035    o Commiting new energy balance model to repository
1036      * package is pkg/ebm
1037      * verif. is verification/global_ocean_ebm
1038      * references are in ebm_driver.F
1039    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1040    C        Global thermohaline circulation. Part I:
1041    C        Sensitivity to atmospheric moisture transport.
1042    C        J. Climate 12(1), 71-82
1043    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1044    C        Global thermohaline circulation. Part II:
1045    C        Sensitivity with interactive transport.
1046    C        J. Climate 12(1), 83-91
1047    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1048    C        Destabilization of the thermohaline circulation
1049    C        by atmospheric eddy transports.
1050    C        J. Climate 7(12), 1870-1882
1051    o Will need long integration testing.
1052    checkpoint53b_pre
1053    
1054    o created pkg/mom_common in preparation for variable viscosity code
1055    o renamed and split ini_mnc_io
1056    o pkg/land: only liquid water can diffuse or run-off
1057    o AIM using land: soil wetness availability account for snow
1058    o added printMapIncludesZeros to EEPARMS namelist
1059    
1060    checkpoint53a_post
1061    o restore TAMC compatiility for exf_constants.h
1062      (no usage of _d in .h)
1063    o Additional storing in KPP in an attempt to fix
1064      TAMC problem with adjoint of KPP code.
1065      (no success...)
1066      Identical code works fine with TAF.
1067    o Fixed verification/natl_box_adjoint experiments.
1068      Initial conditions for Experiments 4 and 5 are now
1069      set to "SEAICE_initialHEFF=0", which is more reasonable,
1070      and hence gives results closer to that of Experiment 2.
1071      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1072    
1073    checkpoint53
1074    o stable checkpoint with up to date adjoint
1075      TLM tests only run for 1st grdchk at the moment. Its unclear if
1076      this is a code problem or a problem with resetting code for g_
1077      variables that is being autogenerated wrong.
1078      Otherwise:
1079       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1080       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1081         are both still in chaos following their security messes.
1082    
1083    checkpoint52n_post
1084    o various build (mostly genmake2) changes including:
1085      - ability to build/run more easily within Cygwin and MacOS X
1086      - more complicated Makefiles with a stronger dependence on Gnu Make
1087    o pkg/seaice modifications
1088      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1089        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1090        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1091      - changed proxy for geostrophic velocity and updated
1092        verification/lab_sea/results/* accordingly
1093      - removed ADI dynamic solver from pkg/seaice
1094      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1095        they caused a segmentation fault under certain circumstances
1096      - removed unused field WATR
1097    o bug fix in exf-package:
1098      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1099         now reflect that.
1100    o small fixes in the cal-package:
1101      - set reference date to first of January for the 'model'-calendar
1102      - failing of cal_CheckDate in cal_FullDate now actually results in a
1103        warning
1104    o small modifications in exf-package to increase flexibility:
1105      - change climtempfreeze from a constant to a runtime parameter that
1106        is specified in data.exf_clim (default = -1.9)
1107      - introduce runtime parameter windstressmax (default = 2.0) that is
1108        specified in data.exf
1109    o fix in pkg/thsice:
1110      - update Evap (Tsf changes) to be consistent with Latent heat flux
1111      - maintain snow precipitation unchanged (even if Tsf >=0).
1112     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1113    
1114    checkpoint52m_post
1115    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1116      this does not change any of the results, because myIter=0 in swfrac always
1117      lead to jwtype=2 (the default anyway), but the call makes little sense
1118      as a default
1119    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1120    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1121      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1122    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1123    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1124    o extending useSingleCpuIO option to work with new exch2 I/O format
1125      - old-style, missing-tile I/O is still accessible by defining CPP
1126        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1127    o monitor package can write to NetCDF files and/or STDOUT
1128    o fix re-definition bug in MNC_GRID_INIT_ALL()
1129    o doc/api_reference added
1130      - a framework for building an API Reference Manual using all
1131        the "protex" comments embedded in the code
1132      - see pkg/generic_advdiff, pkg/mnc for examples
1133    o MNC:
1134      - make myThid the last argument for all subroutines
1135      - new default for the grid files: NO halos
1136      - add useMNC and other run-time flags
1137      - separate per-file-group handling of the unlimited dimension
1138      - early initialization of MNC w/ flags read at the eeboot stage
1139        and lookup tables set in initialize_fixed
1140      - write all MNC output to a freshly-created directory
1141    o thermodynamics sea-ice (thsice) is now tested with testreport.
1142    o test exp. advect_cs: use the standard cs32 grid ; update output.
1143    o Added functionality to grdchk:
1144      pick global i,j,k position (or nearest wet) where to perform check.
1145    
1146    checkpoint52l_post
1147    o new land formulation:
1148      a) use ground enthalpy as prognostic variable to ensure exact
1149         energy conservation.
1150      b) account for water temperature and for latent heat of freezing
1151         in all processes (rain, run-off, ground storage)
1152      c) compute surface and ground temperature implicitly.
1153    o aim_v23 modification for new land model:
1154      a) Treat separately land / ocean / sea-ice surface fluxes
1155         to allow implicit computation of land & sea-ice surface temp.
1156      b) add snow precipitation.
1157    checkpoint52l_pre
1158    
1159    o fix problem (when 1 tile is empty) in min/max monitor.
1160    o fix bug in timeAve (u,vZetatave in common block)
1161    o no restoring terms under ice for pkg/seaice
1162    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1163    o bug fix for pkg/seaice pickups
1164    o change MNC call locations and add coordinate attributes
1165    o mask vorticity at the corner ; affects global_ocean.cs output
1166    o fix ini_curvilinear_grid ; test CS experiments with mpi
1167    o aim.5l_cs: modify sea-ice fraction input file ; update output
1168    o exf: Adding simple range check routine for exf fields after read
1169    
1170    checkpoint52k_post
1171    o removed top-level directory "diags"
1172      - we migrated these functions to pkg/timeave a long time ago
1173    o fixed bug introduced in pkg/monitor
1174    o accuracy ctrlprec = 32 insuffient for gradient checks using
1175      averaged fields (I/O via cost_averages)
1176      -> use ctrl.h in active_file*.F to control I/O precision.
1177    o paramter list of CALL ADTHE_MAIN_LOOP
1178    o added initial do_the_model_io to ecco
1179    o set all ...Freq to zero after cost_final
1180      taveFreq, dumpFreq, pChkptFreq
1181    o MAIN and ECCO differentiability restored
1182    
1183    checkpoint52j_post
1184    o fix nchklev in tamc.h for global_ocean...
1185    o Bringing flow and store directives up-to-date
1186    o Really weird thing!
1187      call do_the_model_io from the_main_loop with parameters
1188      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1189      TAF places a faulty re-call of initialise_varia
1190      after cost_final call which should not be there!
1191    checkpoint52j_pre
1192    
1193    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1194      error messages
1195    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1196    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1197      debug output
1198    o modfied mdsio_writefield.F to handle non-global files under exch2
1199    o update AIM Cubed-Sphere exp (aim.5l_cs):
1200      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1201    o update AIM Equatorial Channel exp:
1202      use standard aim_v23 pkg and change the SST fields to be more realistic.
1203    o globalFile now works with exch2
1204    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1205      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1206    o limit timeave output for hi-res integrations
1207    
1208    checkpoint52i_post
1209    o removed CPP_EEOPTIONS.h from verification/*/code
1210    o updated the tiling for global_ocean_pressure
1211    checkpoint52i_pre
1212    
1213    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1214      the old pkg/aim).
1215    
1216    checkpoint52h_pre
1217    o shortened offending lines in exch2_send_rx?.template
1218    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1219    o genmake2: add build & execute test for NetCDF code
1220    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1221      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1222    o added useSingleCPUIO flag to monitor.F and mon_out.F
1223    o added temporary hack for sea-ice dynamics on the cube:
1224      metric terms are ignored and it is assumed that
1225      there is no sea-ice on cube faces 1, 2, 4, and 5.
1226    
1227    checkpoint52f_post
1228    o added exch2 cube routines to pkg/exch2
1229    o modified hs94.cs-32x32x5 to use it
1230    o added new grid files to hs94.cs-32x32x5
1231    checkpoint52f_pre
1232    
1233    checkpoint52e_post
1234    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1235      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1236    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1237      to work with implicit vertical advection and AB ;
1238    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1239    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1240     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1241    checkpoint52e_pre
1242    
1243    o fix bug in impldiff when Nr=1 or Nr=2.
1244    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1245    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1246    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1247      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1248    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1249    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1250    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1251    
1252    checkpoint52d_post
1253    o re-tiled many expts to allow comparison in multi-processor mode
1254      - updated output accordingly
1255      - changed hs94.128x64x5 to use intial T from file rather than use the
1256        random number generator
1257    o add infrastructure in model routines for fizhi and gridalt packages
1258    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1259    o changes to permit hi-res, cubed-sphere, configuration
1260      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1261      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1262      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1263        of surface winds for the cube
1264      (A verification experiment, based on global_ocean.cs32x15, but with
1265       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1266       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1267       complete with example surface forcing files and matlab scripts to look
1268       at the output and compare it with that of global_ocean.cs32x15.)
1269    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1270       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1271       to conform to the common rule.
1272    o check-in the first version of the coupler + interfaces for multi-components
1273       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1274       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1275       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1276       - ocean and atmos. share the same horizontal grid (no interpolation).
1277       - exchanges between component and coupler is done in forward_step
1278    o new verification experiment, cpl_aim+ocn:
1279       coupled ocean - AIM atmosphere on cs32 grid.
1280    
1281    checkpoint52d_pre
1282    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1283    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1284    
1285    checkpoint52c_post
1286    o Fixing OPTIONS files for use of exf:
1287      - ALLOW_ECCO not needed
1288      - ECCO_CPPOPTIONS.h should not be included from
1289        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1290        as has been the case in the past
1291      - All cal/exf related options are currently set in
1292        single header file. Should remain so until we
1293        agree on a consistent new policy.
1294    o Removed all CPP options for cal package.
1295      cal has no more CPP options.
1296    o modified STOREs in GAD_ADVECTION
1297    o corrected key comp. for passkey
1298    
1299    checkpoint52b_post
1300    o new version: "thsice" of thermodynamic sea-ice pkg:
1301     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1302     - modify fluxes but do not change theta directly;
1303     - light cleaning of bulk_force pkg (still needed with thsice).
1304     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1305       + output_thsice.txt to test thsice & bulk_force pkgs.
1306    o put back grid & coriolis monitor output.
1307    checkpoint52b_pre
1308    
1309    o call "do_the_model_io" at the beginning (=> dump initial state)
1310    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1311    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1312      (need info on NUMBER_OF_PTRACERS)
1313    o missing PTRACERS headers in some routines
1314    o default tamc.h in pkg/autodiff supposed to crash
1315      to ensure proper customization
1316    
1317    checkpoint52a_post
1318    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1319      - moved surfaceTendencyTice from pkg/seaice to main code
1320      - subroutine FREEZE_SURFACE now limits only surface temperature
1321        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1322        => new output.txt for global_ocean.cs32x15 & global_with_exf
1323      - keep the old version of FREEZE for backward compatibility;
1324        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1325      - corresponding modifs for TAF directives
1326    o added surface flux output variables to TIMEAVE_STATVARS
1327    o time-averaged output for pkg/ptracers
1328    o fix problem with ECCO-related divided adjoint
1329      snapshot file was missing some ad-variables,
1330      but no warning issued by TAF
1331    
1332    checkpoint52a_pre
1333    o some bug fixes for #undef REAL4_IS_SLOW
1334    
1335    checkpoint52 = ecco_c52_e35
1336    o after testing adjoints of checkpoint51u_post
1337    
1338    checkpoint51u_post
1339    o this is the post-merge tag of the ecco-branch
1340      (needs another clean checkout and re-testing)
1341    o various natl_box_adjoint configs and results
1342      but no input fields
1343    o obcs adjoint not yet merged!
1344    o adding ECCO global 1x1 and 2x2 degree configs
1345    o updated/extended some store directives for seaice
1346    o pkg/ecco now containes ecco-specific part of cost function
1347    o top level routines the_main_loop, forward_step
1348      supersede those in model/src/
1349      previous input data.cost now in data.ecco
1350      (new namelist ecco_cost_nml)
1351    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1352    
1353    checkpoint51t_post
1354    o this is the pre-merge tag of the ecco-branch
1355    
1356    checkpoint51s_post
1357    o cleanup: removed various obsolete #define-s
1358    o pkg/grdchk
1359      - renamed 'ph-grd 3' to 'grad-res'
1360      - merged from ecco-branch
1361        (remaining bug fixes for obcs gradient checks)
1362      - additional high-precision output for testreport
1363        (grep for 'precision_grdchk_result')
1364    
1365    checkpoint51r_post
1366    o cleaned up or removed CPP_OPTIONS.h files
1367    o updated results for some of the tests to reflect the new
1368      optfiles (-ieee: -O0 instead of -O3)
1369    
1370    checkpoint51q_post
1371    o cd_code:
1372      - moved cd_scheme.F -> cd_code_scheme.F
1373      - separate read_checkpoint from cd_code_ini_vars.F
1374      - separated cd_code part from write_checkpoint
1375      - updated AD_SOURCE, generated .flow
1376      - added CD_CODE_VARS.h to the_main_loop
1377      - Moving cd_code specific store dir.s to pkg/cd_code
1378    o ctrl package totally restructured
1379      - pack/unpack now optional and decoupled from
1380        xx_/adxx_ I/O
1381      - ctrl_pack/unpack cleaned
1382        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1383      - confined inclusion of AD_CONFIG.h to where necessary.
1384    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1385    
1386    checkpoint51p_post
1387    o create initial cd_code package
1388      - WARNING: the initialization of fields within packages
1389        is broken because INI_FIELDS (where READ_CHECKPOINT is
1390        called) is called *before* PACKAGES_INIT_VARIABLES.
1391        This seems to be backwards since
1392        1) its important to initially zero the entire field including
1393           the "halo" region
1394        2) zeroing needs to be done *before* reading pickup info
1395           and the pickup call might or might not happen in any
1396           particular run
1397      - this needs an overhaul for R2
1398    o cleanup verification/*/code/GMREDI_OPTIONS.h
1399    o cleanup testreport
1400    
1401    checkpoint51o_post
1402    o bringing AD-related verif's up to date with genmake2
1403      - carbon/
1404      - global_ocean.90x40x15/
1405      - hs.94.1x64x5/
1406      - (front_relax/ )
1407    o (more) consistent directory structure for AD-related verif.'s
1408    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1409    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1410    o bug fix in find_alpha.F for MDJWF:
1411      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1412        change rho -> rho-rhoConst
1413      - replace call find_rho to find_rhonum
1414    o initialisation of rFlx extended to full array (required by TAF)
1415      and shifted to thermodynamics
1416    o removed PTRACERS.h in ptracers routine
1417    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1418    o Correcting initialisations for fVerU, fVerV.
1419    o helping TAF to recognize dependency on kUp for
1420      fVerU, fVerV
1421    o Replacing delZ by delR in pkg/ctrl/
1422    checkpoint51o_pre
1423    
1424    o undid all of cp51 pending some cleanups and discussion
1425    o added the [#include "AD_CONFIG.h"] statement to all files that need
1426       it for adjoint/tl #defines
1427     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1428     o removed tools/genmake since it no longer works
1429    
1430    checkpoint51n_post
1431    o modifications to make FREEZE flux visible to pkg/kpp
1432      - moved surfaceTendencyTice from pkg/seaice to main code
1433      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1434      - subroutine FREEZE now limits only surface temperature
1435        (this means new output.txt for global_ocean.90x40x15,
1436         global_ocean.cs32x15, and global_with_exf)
1437    o added surface flux output variables to TIMEAVE_STATVARS
1438    
1439    checkpoint51n_pre
1440    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1441    o added [#include "AD_CONFIG.h"] to all files that use the following
1442      defines:
1443      - ALLOW_ADJOINT_RUN
1444      - ALLOW_TANGENTLINEAR_RUN
1445      - ALLOW_ECCO_OPTIMIZATION
1446    
1447    checkpoint51m_post
1448    o incorporating changes to get TAMC/TAF working in genmake2
1449      - added new TAMC/TAF targets to the Makefile
1450      - various cleanups related to package handling
1451      - these changes should have no impact on the forward model
1452    
1453    checkpoint51l_post
1454    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1455     - faster algorithm for cal_addtime.F
1456     - higher precision arithmetic, where needed
1457     - pkg/exf *startdate variables changed from calendar date to
1458       model integration time
1459    
1460    checkpoint51l_pre
1461    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1462    o enable to apply restoring on S & T only in a latitude band.
1463    o update output (external_forcing_surf modif. change truncation errors)
1464       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1465    
1466    checkpoint51k_post
1467    o change default to: useNHMTerms=.FALSE.
1468     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1469       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1470     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1471        exp1, ideal_2D_oce
1472     - change data file of oceanic exp (leave the results unchanged for now)
1473       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1474    o set gravitySign automatically according to the vertical coordinate used
1475      (and change sign: back to "logical" value: +1 when R increases downward)
1476    o added an include barrier to the default CPP_OPTIONS.h and
1477      removed the #include "PACKAGES_CONFIG.h" from it
1478    o fix a bug in mom_fluxform (from chk51j_post)
1479    
1480    checkpoint51j_post
1481    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1482    o adjusted some flow directives (dynamics, thermodynamics)
1483    o added cubed-sphere case to test cost function
1484    o heckpoint_lev?_directives.h now include
1485      pkg-specific directives, whenever those are enabled.
1486    o Moving pkg-specific flow directives to corresponding pkg
1487      Moving pkg-specific differentiation list to corresponding pkg
1488      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1489      ---> conventions are
1490           - pkg_ad.flow
1491           - pkg_ad_diff.list
1492           - pkg_ad_check_lev?_dir.h
1493    
1494    checkpoint51i_post
1495    o merge of the branch-genmake2
1496      - knowingly breaks the older genmake
1497      - automatic generation of all ALLOW_${PKG_NAME} defines
1498      - new testreport supersedes older testscript
1499    o large number of package inclusion and header cleanups
1500    checkpoint51i_pre
1501    
1502    o new output for adjoin of global ocean vector invariant
1503    o fix for checkpoint of thermodynamic seaice and bulk_force
1504    o Steph gchem various cleanups
1505    
1506    checkpoint 51h_pre
1507    o fixed some single quotes
1508    o modify gchem pkg to be more versatile
1509    o modifications to clean up dic pkg
1510    o add pkg/cfc
1511    
1512    checkpoint51g_post
1513    o provide links for ARPACK and ADM*TLM
1514    o start removing verification/vero/
1515    o update AD-related stuff
1516      (in particular some IF-statements in model/src/ routines)
1517    o adding to verification/global_ocean.90x40x15/ adjoint of
1518      vector invariant setup
1519    
1520    checkpoint51f_post
1521    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1522    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1523      of tracer Green's fucntions for ocean inversion project.
1524    
1525    checkpoint51f_pre
1526    o Added on-the-fly spatial interpolation capability
1527        "USE_EXF_INTERPOLATION" to pkg/exf.
1528      - This is a temporary Cartesian-grid hack until
1529        the super-duper ESMF coupler becomes available.
1530      - See verification/global_with_exf/README for usage example.
1531      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1532        flags and modified pkg/seaice accordingly.
1533    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1534        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1535        non-local transport term.
1536    
1537    checkpoint51e_post
1538    o pkg/mom_vecinv:
1539      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1540      - add time-ave diagnostic of vorticity advection.
1541    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1542    o atmospheric geopotential: - include water vapor effect;
1543                                - use p^kappa in p* scaling.
1544    o land pkg: read initial state from files.
1545    o AIM : add stratospheric drag in the upper level
1546    
1547    checkpoint51d_post
1548    o change function ILNBLNK (=> last non-blank char.) to return zero
1549      (instead of the string length) when the string. char is empty
1550    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1551    o modif's to restore TAMC compatibility
1552      - avoid "_d" constructs in PARAMETER declarations
1553      - avoid interrupting lines by comment lines
1554    o Use cluster local disks for purely local I/O
1555      vs. globally visible disks needed for ctrl stuff
1556      (merged from ecco-branch)
1557      - new active_file_loc... and mdsio_..._loc routines
1558      - affected packages: autodiff, ctrl, grdchk, mdsio
1559    
1560    checkpoint51c_post
1561    o introducing integer flag debugLevel
1562      - debLevZero: suppress all output
1563      - debLevA: standard
1564      - debLevB: equivalent to current debugMode=.TRUE.
1565    o introducing pathname variable mdsioLocalDir for mdsio
1566      that can be specified at runtime
1567      (relevant for cluster I/O to local disk)
1568    `
1569    >>>checkpoint51b_post
1570    adjoint of ptracers
1571    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1572    o extended state in checkpoint_lev?, etc.
1573    o alternative ctrl/cost with tr1 or ptracer
1574    o new comlev1_bibj_ptracers
1575    o new ptracers.flow
1576    o made ptracers_forcing same as external_forcing_s
1577    o added verification for adjoint with ptracers
1578      - adm. grdchk fail so far
1579      - tlm. grdchk OK
1580      - checked tapelev/comlev recomputations: OK
1581    <<<checkpoint51b_pre
1582    
1583    checkpoint51a_post
1584    o added code for biogeochemistry package
1585      - new pkgs: dic, gchem
1586      - new subroutine in ptracers
1587    o modify code for biogeo packages
1588      - in model/src and pkg/ptracers
1589    
1590    checkpoint51
1591    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1592      - autodiff, ctrl, exf, grdchk, seaice
1593      kept separate packages
1594      - cost, ecco, obcs
1595    o updating verification/internal_wave, verification/lab_sea
1596      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1597    
1598    checkpoint50i_post
1599    o Preparing next differentiable checkpoint and sync
1600      of MAIN vs. ecco-branch
1601      - 1st step: this one is differentiable
1602      - 2nd step: next(! not this) checkpoint will have updated packages
1603                  from ecco-branch)
1604    
1605    checkpoint50h_post
1606    o new package "land": provide surface BC for AIM.
1607    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1608    o AIM: use true log-P extrapolation for near surface temp (= as in
1609        F.Molteni paper) ; update aim.5l_cs output.
1610    o New variable in PARM03 for more flexible pickups
1611    o somewhat cleaned package initialisation sequence for
1612      ctrl/ cost/ ecco/ in packages_... routines
1613    
1614    checkpoint50g_post
1615    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1616      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1617      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1618        made the default because of faster convergence than ADI
1619    
1620    checkpoint50f_post
1621    o exf totally restructured
1622      - replaced all exf_set_ routines by one generic exf_set_gen.F
1623        and made sure it's still differentiable
1624      - split exf_getffields.F into new exf_bulkformulae.F
1625      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1626      - updated adjoint/makefile and relevant verif. accordingly
1627    
1628    checkpoint50f_pre
1629     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1630          + change Evap over land. (update aim.5l_cs output)
1631     o added missing .cvsignores and made uniform across expts
1632     o changed configuration of tidal_basin_2d expt
1633     o added pkg/debug functions for tracing code in fatal crashes
1634     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1635     o new fn in pkg/monitor to stop model if solution grows too big
1636     o removed lots of single quotes from comments
1637    
1638    checkpoint50e_post
1639    o make KPP work with PTRACERS
1640     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1641       nearly a copy of kpp_transport_s
1642     - there is no analogue to SurfaceTendencyS, so I have to use
1643       gPtr(of the surface layer) instead
1644    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1645    checkpoint50e_pre
1646    
1647    checkpoint50d_post
1648    o change kpp output from multiple-record state files to single-record state
1649      files analogous to write_state.F
1650    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1651      analogous to the cg2d-related output.
1652    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1653      so that writing to internal file fn (with length 512) fails.
1654    checkpoint50d_pre
1655    
1656    checkpoint50c_post
1657    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1658    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1659    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1660    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1661    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1662    
1663    checkpoint50c_pre
1664    Merging from release1_p13:
1665    o bug fix for pkg/seaice dynamic solver
1666    o Added SEAICE_initialHEFF to pkg/seaice
1667    
1668    checkpoint50b_post
1669    o store u*,v* in gU,V instead of in guNm1,gvNm1
1670    o in order to put the momForcing out of the Adams-Bashforth:
1671      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1672      to timestep.F
1673    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1674    o re-generate output for highly sensitive test-exp:
1675       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1676    
1677    checkpoint50b_pre
1678    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1679    o corrected CPP option mismatch in exf_Bulk... functions for case
1680      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1681    
1682    checkpoint50a_post
1683    o Bug fix for merging between c50 and KPP.
1684      ikey was passed from thermodynamics to kpp_calc via
1685      common block rather than being recomputed in kpp_calc,
1686      in contradiction with new key itdkey.
1687      New key ikppkey created, and tamc.h headers updated.
1688    
1689    checkpoint50
1690    - 2nd step of merge with ecco-branch:
1691      merge changes in ecco-branch back into main trunk
1692    - bug fix in find_alpha
1693    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1694    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1695    - merged some sliced AD support routines
1696    
1697    checkpoint49
1698    merged from ecco-branch:
1699    o exf:
1700      - Enable initialisation of forcing fields to constant
1701        (runtime) values.
1702      - in exf_getffields.F
1703        Reduce i-/j-loop to interior domain, discarding overlaps.
1704        That also fixes wrong TAF-key computations for key_1, key_2
1705        with bulf formulae.
1706      - exf_init.F modify #ifdef for exf_init_evap
1707      - exf_getffieldrec.F, ctrl_getrec.F
1708        The following INT-usages are not safe:
1709          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1710          fldcount = int(fldsecs/fldperiod) + 1
1711        and were modified.
1712    o autodiff: checkpoint_lev...
1713      - updated storing for bulk formulae (some arrays were missing)
1714      - added state for seaice package
1715      - synchronized with main branch
1716    o DIVA:
1717      Modif.s in
1718      - the_main_loop.F
1719      - the_model_main.F
1720      and added cost_final_restore.F cost_final_store.F
1721      o With these changes, it is possible to fully separate
1722        the first forward run to compute the cost function (mdthe_main_loop)
1723        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1724        into separate model executions.
1725        This enables better tuning of DIVA to given queue sizes.
1726      o Loss of cost function value in consecutive DIVA runs is
1727        fixed by storing to 'costfinal' file.
1728      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1729        beginning/end of adjoint integration is accounted for.
1730      The current changes apply to TAF-1.4.26.
1731      TAF has one remaining bug, requiring one manual change
1732      (see MITgcm manual).
1733    o cal: synchronized between MAIN and ecco-branch
1734    
1735    checkpoint48i_post
1736    o Changes to restore differentiability of code w.r.t. previous tag
1737      (mostly adding new routines to make list and replacing
1738      pressure by totPhiHyd).
1739    o Updated and merged grdchk package
1740      - has both ADM and TLM checks
1741      - works for single- and multi-proc.
1742      - output cleaned
1743      - worked successfully for parallel DIVA
1744    o genmake:
1745      - Adding -platform=SP4
1746      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1747    o Modif. for DIVA:
1748      ctrl_unpack should not be called in intermediate DIVA interval.
1749      (similar thing would apply for active files such as
1750      tbar, sbar, psbar, which should not be reinitialised;
1751      only relevant for ecco-branch)
1752    
1753    checkpoint48h_post
1754    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1755    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1756    o Added SEAICE_initialHEFF to pkg/seaice
1757    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1758    
1759    checkpoint48g_post
1760    --- EOS:
1761    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1762      store total Potential in totPhyHyd for diagnostics & EOS.
1763    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1764    --- Pressure/geopotential gradient:
1765    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1766    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1767      ( changes results of global_ocean_pressure )
1768    o NLFS + z-coord.: add eta*Rho' contribution.
1769    o accurate phiHyd when using interface-W at the middle between 2 centers
1770     ( changes results of ideal_2D_oce )
1771    o includes r* 2nd term in potential gradient.
1772    
1773    checkpoint48f_post
1774    Merging from release1_p12:
1775    o Modifications for using pkg/exf with pkg/seaice
1776      - improved description of the various forcing configurations
1777      - added basic radiation bulk formulae to pkg/exf
1778      - units/sign fix for evap computation in exf_getffields.F
1779      - updated verification/global_with_exf/results/output.txt
1780    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1781      (SBO) core products, including oceanic mass, center-of-mass,
1782      angular, and bottom pressure (see pkg/sbo/README.sbo).
1783    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1784      to avoid negative values in shallow regions.
1785      - updated verification/natl_box/results/output.txt
1786      - updated verification/lab_sea/results/output.txt
1787    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1788    o Added useSingleCpuIO option (see PARAMS.h).
1789    o Updated useSingleCpuIO option in mdsio_writefield.F to
1790      work with multi-field files, e.g., for single-file pickup.
1791    o pkg/seaice:
1792      - bug fix in growth.F: QNET for no shortwave case
1793      - added HeffFile for specifying initial sea-ice thickness
1794      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1795    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1796      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1797    o pkg/seaice:
1798      - adjoint-friendly modifications
1799      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1800    
1801    checkpoint48e_post
1802    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1803    o dynamics: change definition of computational domain & adapt mom_fluxform
1804      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1805    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1806        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1807        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1808        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1809        inverted_barometer solid-body.cs-32x32x1
1810      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1811    
1812    checkpoint48d_post
1813    o in preparation for r*:
1814     a) use pre-computed gradient of hydrostatic potential:
1815        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1816     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1817        => affects results of glob_oce_pressure (different truncation error)  
1818      update output.txt of ideal_2D_oce & global_ocean_pressure
1819    
1820    checkpoint48d_pre
1821    o in preparation for r*:
1822      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1823      pass the 2 comp. of the grad. as arguments to momentum S/R.
1824      but for the moment, only used if it does not change the results.
1825    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1826    
1827    checkpoint48c_post
1828    Modifications in treatment of initial flux forcing controls
1829    to avoid extra storing of flux fields.
1830    
1831    checkpoint48c_pre
1832    o Added tidal_basin_2d experiment (currently 1D!)
1833    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1834    
1835    checkpoint48b_post
1836    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1837     (modification to pressure gradient not yet implemented)
1838    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1839      (for U & V) that are used for vertical advection of momentum.
1840    
1841    checkpoint48a_post
1842    o In preparation for r*, use temp. array to compute vertical transport
1843       in flux-form momentum pkg. => change results of few test-exp.
1844      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1845                        lab_sea, natl_box & plume_on_slope
1846    
1847    checkpoint48
1848    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1849    
1850    checkpoint47j_post
1851    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1852    o moved adexch from forward_step to addummy_in_stepping
1853    o added exch in ctrl_map_...
1854    o aveFreq.=0. at end of cost_final to avoid overwrite in
1855      reverse checkpointing loop
1856    o Yet more changes in gmredi:
1857      * adgmredi_calc_tensor
1858        avoiding all recomputation of gmredi_slope_limit
1859      * adgmredi_x/y/rtransport
1860        added flag for excessive storing to avoid recomp. of
1861        u/v/rtans, dTdx/y/z
1862        -> this is not really necessary and very memory-consuming
1863      * adgmredi_slope_psi:
1864        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1865      * gmredi_slope_limit
1866        re-activated full calculation of taperfct for case 'ac02'
1867    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1868    
1869    checkpoint47i_post
1870    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1871    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1872      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1873    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1874    o gmredi: fix few bugs.
1875    
1876    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1877    This will be a good checkpoint to plug into the ecco-branch.
1878    o few modif.'s to get latest version adjointed
1879      (mainly kick out code in ini_linear_phisurf)
1880    o modif's to run adjoint with exactConserv
1881    o case GM_BOLUS_ADVEC should be cleaned
1882      S/R gmredi_slope_psi should be cleaned
1883    o verification/carbon now has exactConserv=.TRUE.
1884    
1885    checkpoint47g_post
1886    o time-average AIM output: becomes independent from statvars time-average
1887      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1888    o After TAF bug fix:
1889      Tested adjoint of gmredi package.
1890      Tests were done with checkpoint47 rather than with latest
1891      checkpoint47f_post since the latter is broken for the adjoint
1892      verification/carbon/ contains both ADM and TLM gradient checks.
1893    Here they are, before they get changed/lost/stolen.
1894    Mostly modif.'s to fix numerical sensitivities.
1895    Gradient checks OK for
1896    - GM_taper_scheme:
1897      * clipping
1898      * ac02
1899      * linear
1900      * glw91
1901      * dm95
1902      * ldd97
1903    - GMREDI_OPTIONS:
1904      * GM_VISBECK_VARIABLE_K
1905      * GM_NON_UNITY_DIAGONAL
1906      * GM_EXTRA_DIAGONAL
1907      * GM_BOLUS_ADVEC
1908    in conjunction with data.gmredi parameters to be checked in
1909    in a few minutes under verification/carbon/code/
1910    
1911    checkpoint47f_post
1912    Merging from release1_p10:
1913    o modifications for using pkg/exf with pkg/seaice
1914      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1915        and SEAICE_EXTERNAL_FLUXES
1916      - pkg/exf CPP options EXF_READ_EVAP and
1917        EXF_NO_BULK_COMPUTATIONS
1918      - usage examples are Experiments 8 and 9 in
1919        verification/lab_sea/README
1920      - verification/lab_sea default experiment now uses
1921        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1922    
1923    checkpoint47e_post
1924    o created a tag prior to creating a branch
1925    
1926    checkpoint47d_post
1927    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1928      at the bottom boundary had an erroneous half slip boundary condition
1929    o added bottom drag and no slip boundary condition capabilities to
1930      oceanic pressure coordinates code
1931    o added new verification experiment global_ocean_pressure, this experiment is
1932      also described in the tutorial section of the manual
1933    checkpoint47d_pre
1934    
1935    checkpoint47c_post
1936    o Added a verification experiment for a global cubed-sphere ocean run
1937      -  verification/global_ocean.cubed32x32x30
1938      -  uses pkg/therm_seaice and pkg/bulk_forcing
1939    
1940    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1941    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1942      when using P-coordinate; only implemented for atmospheric config.
1943    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1944      NOTES: requires option NONLIN_FRSURF to be "#define".
1945    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1946    
1947    checkpoint47b_post
1948    Merging from release1_p9:
1949    o pkg/seaice
1950      - removed GOTO's and added taf directives
1951      - double precision constants to reduce the g77 (Linux)
1952        to F77 (SGI) differences reported in release1_p8
1953    o tools/genmake
1954      - added SGI options
1955    o verification/testscript
1956      - updated to that of checkpoint47a_post
1957    o verification/global_ocean.90x40x15/input/eedata
1958      - modified for SGI f77 compatibility
1959    o verification/lab_sea
1960      - added description of sea-ice model
1961      - added missing matlab routines
1962      - added test of thermodynamics parallelization
1963    
1964    checkpoint47a_post
1965    o new pkg: aim_v23
1966     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1967       for now, keep the same surface forcing as before.
1968     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1969     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1970     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1971    o add diagnostic of surface correction term in monitor output
1972    
1973    o bulk_force and therm_seaice
1974    - Two packages:  bulk_force (Bulk forcing)
1975      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1976    - Earlier integration from Stephaine Dutkiewicz
1977      and Patrick Heimbach.
1978    - Two ifdef statements for compile time,
1979       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1980    
1981    checkpoint47
1982    differentiable version of checkpoint46n_post
1983    o bug fix in quasihydrostaticterms
1984    o * "clean" adjoint code (in terms of extensive recomputations)
1985        can now be obtained for all GMREDI options (i.e. for
1986        - GM_VISBECK_VARIABLE_K
1987        - GM_NON_UNITY_DIAGONAL
1988        - GM_EXTRA_DIAGONAL
1989        - GM_BOLUS_ADVEC )
1990      * However, wrong gradient check problem remains unsolved.
1991      * New CPP options have been introduced for different
1992        tapering schemes
1993    o external_fields_load now part of differentiation list
1994    o pressure needs multiple storing;
1995      would be nice to have store_pressure at beginning or
1996      end of forward_step, e.g. by having phiHyd global (5-dim.)
1997      (NB: pressure is needed for certain cases in find_rho,
1998      which is also invoked through convective_adjustment).
1999    o recomputations in find_rho for cases
2000     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2001    o #define ATMOSPHERIC_LOADING should be differentiable
2002    o ini_forcing shifted to begining of initialise_varia
2003    o Incorporating QNVS line search routines into MITgcm
2004      (this is separate code, and therefore not under pkg)
2005      lsopt/, optim/
2006    o Updated verification/carbon/
2007      - #define GM_VISBECK_VARIABLE_K
2008      - GM_taper_scheme    = 'ldd97'    
2009    
2010    checkpoint46n_post
2011    Merging from release1_p8:
2012    o verification/natl_box:
2013      updating new external_fields_load routine
2014    o New package: pkg/seaice
2015      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2016      The sea-ice code is based on Hibler (1979-1980).
2017      Two sea-ice dynamic solvers, ADI and LSR, are included.
2018      In addition to computing prognostic sea-ice variables and diagnosing
2019      the forcing/external data fields that drive the ocean model,
2020      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2021      The implied surface heat flux is then stored in variable
2022      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2023      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2024      non-local transport term.  Because this call precedes model
2025      thermodynamics, temperature under sea-ice may not be "exactly" at
2026      the freezing point by the time theta is dumped or time-averaged.
2027      N.B.: fairly large differences in accuracy occur across
2028            different platforms/compilers; comparison between
2029            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2030            generated output gives:
2031       T           S           U           V
2032      C D M    c        m  s        m  s        m  s        m  s
2033      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2034      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2035      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2036    
2037      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2038    o GAD:
2039      - generated new common blocks to account for call of
2040        same gad routines with differing traceridentities
2041        (needed to modify tracerIdentity indices in GAD.h)
2042      - generated separate common blocks for case useCubedSphereExchange
2043        (Department of Futurology)
2044      - parameter lists to gmredi_?transport: added tracerIdentity
2045      - added new key indices to tamc.h
2046    o external_fields_load:
2047      - added this routine to TAF list
2048      - needed to make some common blocks global and additional storing
2049        along the same lines as exf package (checkpoint_lev?_directives.h)
2050    o exf:
2051      updated external forcing package
2052      - bug fixes carried over from ecco-branch
2053        (missing OBCS_OPTIONS.h in two routines)
2054      - enable easy to use "no forcing".
2055      - added exf I/O for atmospheric loading
2056      - added exf I/O for runoff data
2057      - transfered scaling between exf <-> MITgcm to exf namelist
2058    o Adding new verification experiment global_with_exf.
2059      This verification experiment is almost identical to the
2060      global_ocean.90x40x15 experiment, except that it uses
2061      the exf (and cal) package instead of the
2062      external_fields_load routine (cf README file).
2063    
2064    checkpoint46m_post
2065    o modified testscript to return -- when there are no lines of "%MON" output
2066    o added new flag "quasiHydrostatic" for QH mode
2067      and new routine quasihydrostaticterms()
2068    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2069      New routine: mom_u_coriolis_nh()
2070    o fixed sign of non-hydrostatic metric terms in u and v equations.
2071      Depend on correct sign of gravitySign.
2072    o added work.pc* to .cvsignore in aim directories using ifc
2073    o introduced flag for controllin non-hydrostatic metric terms
2074    o removed gravitySign from PARM04
2075    o switched to g77/ifc from pgf77 in aim experiments
2076    
2077    checkpoint46l_post
2078    o made convective adjustment work with pressure coordinates:
2079     - changed the direction of k-loop in convective_adjustment.F for the
2080       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2081     - adjusted the reference pressure k-index in convective_adjustment.F
2082     - adjusted the convection condition in convect.F (in analogy to
2083       calc_ivdc.F)
2084     - convective_adjustment no longer computes anything on the halos
2085     - removed the warnings about negative salinity from find_rho.F and
2086       find_alpha.F; instead the new routine look_for_neg_salinity, called
2087       at the beginning of find_rho, find_alpha, and find_beta, does a
2088       check of the entire slice, if CPP-option
2089       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2090    checkpoint46l_pre
2091    
2092    checkpoint46k_post
2093    o fixed the verification/global_ocean.90x40x15 experiment:
2094     - new bathymetry (the world according to A., JMC, and M.)
2095     - new initial fields and forcing fields (*.bin files)
2096     - new POLY3.COEFFS (for the next release one should switch to a full
2097       equation of state: JMD95P or MDJWF)
2098     - fixed several errors and redundancies in the data file
2099     - experiment uses looped cells
2100     - added matlab directory with diagnostic scripts for plotting of output
2101    
2102    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2103     - read AIM physics parameters from a file (data.aimphys)
2104     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2105    
2106    checkpoint46j_post
2107    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2108    o move wVel computation at the end of the time step, in S/R integr_continuity
2109    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2110    o update timeave pkg for wVel diagnostic.
2111    checkpoint46j_pre
2112    
2113    checkpoint46i_post
2114    o Clean up AIM package (and keep the results unchanged):
2115      include CPP_OPTION and use IMPLICT NONE in all routines ;
2116      declare all the variables _RL ; use _d 0 for all numerical constants.
2117      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2118    
2119    checkpoint46h_post
2120    o cleaned up the use of rhoNil and rhoConst.
2121      - rhoNil should only appear in the LINEAR equation of state, everywhere
2122        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2123        and the dynamical equations are all divided by rhoConst
2124    o introduced new parameter rhoConstFresh, a reference density of fresh
2125      water, to remove the fresh water flux's dependence on rhoNil. The default
2126      value is 999.8 kg/m^3
2127    o cleanup up external_forcing.F and external_forcing_surf.F
2128      - can now be used by both OCEANIC and OCEANICP
2129    checkpoint46h_pre
2130    
2131     Added code to convert surface volume flux (fresh water) into
2132     a mass flux when using P coordinates in the ocean (OCEANICP).
2133     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2134    
2135    checkpoint46g_post
2136    o Include a new diagnostic variable phiHydLow for the ocean model
2137      - in z-coordinates, it is the bottom pressure anomaly
2138      - in p-coordinates, it is the sea surface elevation
2139      - in both cases, these variable have global drift, reflecting the mass
2140        drift in z-coordinates and the volume drift in p-coordinates
2141      - included time averaging for phiHydLow, be aware of the drift!
2142    o depth-dependent computation of Bo_surf for pressure coordinates
2143      in the ocean (buoyancyRelation='OCEANICP')
2144      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2145        Theta, Salinity, and Pressure in the parameter list. This routine is
2146        presently contained in find_rho.F. This routine does not give the
2147        correct density for 'POLY3', which would be a z-dependent reference
2148        density.
2149    o cleaned up find_rho
2150      - removed obsolete 'eqn' from the parameter list.
2151    o added two new verification experiments: gop and goz
2152      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2153    checkpoint46g_pre
2154    
2155    checkpoint46f_post
2156    o Enable tangent linear (forward mode) gradient checks:
2157      - extended active file handling to g_... files
2158      - added TANGENT_SIMULATION to theSimulationMode
2159      - extended grdchk package accordingly
2160    o added tangent linear setup in verification/carbon/code_ftl
2161    o added adjoint setup in verification/front_relax/code_ad
2162    
2163    checkpoint46e_post
2164    o Added new equation of state -> MDJWF
2165      - EOS of McDougall et al., 2002, JAOT, submitted
2166      - caveat: the equation of state is only valid for a smaller (more
2167        realistic?) range of values than JMD95P/Z and UNESCO
2168      - added masks to the calculation of pressure in store_pressure
2169      - added more check values for density in check_eos (ini_eos.F), some of
2170        the old check values are out of the range of the MDJWF-eos, so don't
2171        expect perfect matches for those
2172    checkpoint46e_pre
2173    
2174    checkpoint46d_post
2175    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2176      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2177      case of pressure coordinates. eosType='JMD95Z' in
2178      combination with buoyancyRelation='OCEANICP' now causes an error.
2179    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2180      in find_alpha/beta.
2181    checkpoint46d_pre
2182    
2183    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2184      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2185    
2186    checkpoint46c_post
2187    o Changes necessary for ocean in p-coordinates
2188     -  Added new buoyancy relation = 'OCEANICP'
2189     -  Added new parameters = gravitySign (this used to be contained inside
2190        the factor dRdZ which I added when we first switched to R coordinates).
2191     X GM/Redi is not compatible (yet)
2192     X bottom drag and no-slip need to be debugged.
2193    checkpoint46c_pre
2194    
2195    checkpoint46b_post
2196    o Added new equation of state -> JMD95Z and JMD95P
2197      - EOS of Jackett and McDougall, 1995, JAOT
2198      - moved all EOS parameters into EOS.h
2199      - new routines ini_eos.F, store_pressure.F
2200    o Added UNESCO EOS, but not recommended because it requires
2201      in-situ temperature (see JMD95)
2202    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2203      unesco.f to be used with POLY3
2204    checkpoint46b_pre
2205    
2206    checkpoint46a_post
2207    o Added (atmospheric) pressure loading
2208      - new field in FFIELDS.h, etc...
2209      - new cpp flag ATMOSPHERIC_LOADING
2210    o Changed hFacC to _hFacC in calc_phi_hyd.F
2211    o Added SHORTWAVE_HEATING to some files for consistency
2212    checkpoint46a_pre
2213    
2214    checkpoint46
2215    further merges from release1_p5
2216    o new ctrl package
2217      - adopted from ECCO environment to enable optimization
2218      - added Eliassen Palm fluxes to controls
2219    o added Eliassen Palm flux controls to gradient check package
2220    o cost package
2221      - Compatible with new ctrl package
2222      - added Eliassen Palm cost hooks
2223      - modif's of existing cost functions
2224    o Adjoint-related bug fixes in kpp:
2225      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2226      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2227    o autodiff package
2228      - flow directives:
2229        + new for S/R do_the_model_io
2230        + enhanced for S/R checkpoint
2231        + new gmredi.flow
2232      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2233        disable adcommon.h/g_common.h by default.
2234      - fixed problem for adjoint of global_max
2235    o modified verification/carbon/
2236    o New setup for adjoint of global_ocean
2237    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2238    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2239    o incorporated hooks for sponge layer code (external_forcing.F)
2240    
2241    checkpoint45d_post
2242    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2243    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2244      (affects plume_on_slope "cg2d" output)
2245    o add new parameter deltaTfreesurf for free-surface time stepping
2246    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2247    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2248    o change phiMin in exp1 (to agree with documentation)
2249    o add new flags:
2250     - T,S forcing inside/outside Adams-Bashforth
2251     - turn off temp,salt advection and/or forcing
2252     - for each tracer, define internal flag for multiDimAdvection & A-B
2253    o monitor: change definition of KE to check conservation of Energy
2254    
2255    checkpoint45c_post
2256    o Removed f90 comments ("!")
2257    o Modified initialisations to enable exf package for MITgcm
2258      (without invoking ECCO_PACKAGE).
2259    o modifications to gradient check package (Martin Losch)
2260      - enable centered differences
2261      - modified format of standard output
2262    
2263    checkpoint45b_post
2264    o cleaned exchange calls in cg2d
2265    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2266    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2267      to configure barotropic setup (Martin Losch)
2268    o moved some initialisations within bi,bj loop in dynamics
2269      (TAF flow dependency)
2270    o in initialise_varia, moved call packages_init_variables
2271      before convective_adjustment_init
2272      (corresponding adjustment of TAF tape initialisation).
2273    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2274    
2275    checkpoint45a_post
2276    o compute Rho over the whole domain (extend iMin,jMin indices)
2277    o specific exchange for X-slice domain (case Ny=1)
2278    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2279    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2280    
2281    checkpoint44h_post = checkpoint45
2282    o Fix to restore differentiability:
2283      place at which packages_init_variables is called in
2284      initialise_varia is crucial for reverse control flow.
2285    o modifications in GMRedi to enable stable adjoint
2286      (corresponding modif's in thermodynamics, dynamics)
2287    o added missing hook for sponge layer code in external_forcing
2288    o modified test cost functions
2289    o storing in gad_advection (plus removal of write(0,*)!
2290    o missing headers TR1.h added in convective_adjustment routines
2291    o errorMessageUnit set non-equal zero in eeboot
2292      (conflict on some platforms, e.g. IBM SP3)
2293    o modified carbon verif.
2294    
2295    checkpoint44h_pre
2296    o vertical grid option: allow to put the Interface at the middle between
2297      2 cell-centers ; replace delZ in pkg/kpp by drF.
2298    o GM Advective form: Tracers are advected using the residual transport (=
2299      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2300    
2301    checkpoint44g_post
2302    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2303      results) ; ifdef missing in thermodynamics.F
2304    
2305    checkpoint44f_pre,checkpoint44f_post
2306    o added PTRACERS package
2307      This allows an arbitrary number of passive tracers to be integrated
2308      forward simultaneously with the dynamicaly model.
2309      + Implemented so far:
2310        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2311        - I/O and checkpointing
2312        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2313      + Not implemented so far:
2314        - KPP
2315        - OBCS
2316      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2317        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2318        line in data.pkg.
2319      + This package is disabled by default since it increases storage.
2320    
2321    
2322    o testscript: added -cleanup option
2323    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2324                 b) enable to filter 2D fields.
2325    
2326    checkpoint44e_pre,post
2327    o re-wrote convective adjustment to use pre-calculated weights
2328      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2329      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2330      Original calls to convect() still in place.
2331    
2332    chkpt44d_pre,post
2333    o added missing EXCLUDE_MONITOR flags
2334    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2335      (incompatible typ in MIN/MAX expressions caused problems
2336      on IBM SP3)
2337    o in genmake added variable MAKEDEPEND
2338      plus resetting for case SunOS
2339    o added timer_stats.c routine for IBM SP3
2340    o removed variables in dynamics
2341    !!! I forgot to create tag chkpt44d_pre !!!
2342    !!! But chkpt44d_pre = chkpt44c_post    !!!
2343    
2344    o real fresh water flux implemented with non-linear free-surface.
2345    
2346    chkpt44c_pre,post
2347    o few fix (mask in shap_s2, EmPmR in external_field_load,
2348      USE_NATURAL_BCS in solve_for_P);
2349    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2350    
2351    checkpoint44b_pre/_post
2352    o merge of relevant stuff from the ecco-branch:
2353      - genmake: removed $S64 overwrite for case SunOS
2354      - pkg/exf: update and corrections for field swapping and obcs
2355      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2356                  harmonized between ECCO and MITgcm
2357      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2358                      updated checkpointing_lev... lists for obcs
2359      - model/src: minor changes in forward_step, plot_field
2360                   added directive for divided adjoint in the_main_loop
2361      - pkg/mdsio: added mdsio_gl_slice
2362    
2363    o check parameters & config (chkpt44a_pre,post)
2364    o OBC and NonLin_FrSurf.
2365    
2366    checkpoint44
2367    o fix bug in mom_vi_del2uv
2368    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2369    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2370    o update AIM experiments (NCEP input files)
2371    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2372    o added some stuff for AD
2373    
2374    checkpoint43
2375    o added two new advection tests
2376    o added global 4x4 degree ocean test
2377    o added test of H&S94 with free surface on cube
2378    o some final mods for gradient check, adjoint,...
2379    
2380    checkpoint42
2381      Fixed AD-related problems:
2382    o Store directives up-to-date with re-arranged Adams-Bashforth
2383      (mainly thermodynamics.F)
2384    o New store directives for multi-dim. advection schemes
2385      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2386      * new common block and key passkey
2387      (mainly gad_advection.F)
2388    o Modified store directives for split of dynamics/thermodynamics
2389      for the case ALLOW_KPP
2390    o Cleaned argument list for timestep_tracer.F
2391    
2392    checkpoint41
2393    o re-formatted/added comments in prologues of key subroutines
2394      to work with protex
2395    
2396    checkpoint40
2397    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2398    o added FLT (floats) package from Arne along with demo. experiment
2399    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2400      implementation of forward-in-time forcing terms
2401    o more mods for non-linear free-surface including new variable
2402    o modified multi-dim method to work on cube
2403    o bug fix in KPP (from DM)
2404    
2405    checkpoint40pre9
2406    o added DST advection schemes
2407    o fix MPI bug on SGI's
2408    o modifications for non-linear free-surface
2409    o fixed conditionals for fixed flow/passive tracer only mode
2410    o added tension/strain form of stress tensor
2411    o changes to commenting of arguments for TAF/TAMC
2412    o added/updated many matlab scripts
2413    o added multi-dimensional advection method for tracers
2414      
2415    checkpoint40pre8
2416    o new package rw/
2417      Added method for dumping intermediate local arrays:
2418      mdsio_writetile - same as mdsio_writefield except works from inside
2419                        bi,bj loop
2420      mdsio_writelocal - same as mdsio_writetile except works for local
2421                         arrays
2422      write_local_r? - higher-level wrapper for mdsio_writelocal
2423      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2424      Example given at end of mom_vecinv.F that dumps some local arrays.
2425    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2426      control flux-form versus vector invariant code.
2427      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2428      or genmake -DISABLE ...
2429    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2430      (additional storing is now needed for case vecinv;
2431      currently nothing implemented to switch this storing off
2432      in case fluxform is used since no CPP flag available).
2433    
2434    checkpoint40pre7
2435    o bug fix in dynamics.F
2436      calc_viscosity called before k=1,Nr loop.
2437    o added some #ifdef's ALLOW_PASSIVE_TRACER
2438    o cleaned initialisations in ctrl_map_ini
2439      related to TAF
2440    
2441    checkpoint40pre6
2442    o split dynamics into thermodynamics & dynamics
2443    o corresponding split of calc_diffusivity into
2444      calc_diffusivity, calc_viscosity
2445      (kpp_calc_diff, kpp_calc_visc).
2446    o Added diffkr, kapgm to control variables
2447    o bug fix in gmredi_slope_limit for ldd97
2448    
2449    checkpoint40pre5
2450    o proper initialization of Adams-Bashforth time stepping
2451      + uses forward step for very first step of model (iter=0)
2452    o re-generated *all* output since almost all output is modified by this
2453      change (sorry but we've been putting this one off for about 2 years)
2454      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2455        *not* regenerated since they are already out of date and I don't
2456        want to create the impression that they are suddenly working.
2457    o removed KAP stuff for DEC's
2458    o modified/added many .cvsignore files in */code and */input
2459    o added new expt "solid-body.cs-32x32x1"
2460      + this uses an alternative form of ini_curvilinear_grid.F which
2461        is not necessarily any better than the current one...
2462    
2463    checkpoint40pre4
2464    o added re-initialisations of utrans,vtrans,rtrans in
2465      calc_common_factors which are crucial for TAF.
2466    o extended iMin,jMin range for calc_common_factors,
2467      calc_diffusivity
2468    o added option ALLOW_PASSIVE_TRACER
2469    o a few minor updates and fixes
2470    
2471    checkpoint40pre3
2472    o created calc_gtr1.F for gad package
2473    o split the_main_loop and re-introduced forward_step
2474    o some recomputations of nIter0 for TAMC
2475    
2476    checkpoint40pre2
2477    o Updated to latest branch of AJA, JMC
2478    o Added gradient check package
2479    o Added routines for passive tracer handling
2480    o Added carbon sequestration sensitivity experiment
2481    
2482    checkpoint39
2483     o Modifications and fixes to support TAMC
2484       (mainly missing or wrong directives)
2485     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2486       in addummy_in_stepping
2487     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2488     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2489     o Included following packages:
2490       cal: calendar
2491       exf: external forcing
2492       ecco: essential routines to control use of cal, exf
2493             (NB: this is not the full ECCO environment)
2494     o disabled some packages by default in genmake
2495    
2496    checkpoint38
2497     o see notes_c37_adj.txt
2498     o corrected wrong layer index in external_forcing_t
2499     o replaced the_main_loop/forward_step by the_main_loop
2500     o removed forceoutput from write_state
2501       (replaced criteria for initial/final state)
2502     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2503    
2504    checkpoint37
2505     o mdsio.F routine split and packaged in pkg/mdsio
2506       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2507        used unless genmake -disable=mdsio)
2508     o allow a more precise surface-geopotential gradient for the atmosphere
2509       taking into account the change in space of Alpha (=1/rho) at the surface.
2510     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2511       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2512     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2513       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2514       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2515     o Time-Average diagnostics defined as a pseudo package "timeave".
2516     o pickup files : old pickup (before c35) did not work with new code (c35
2517       and after) unless activating 2 commented lines in initialise-varia.
2518     o Non-Hydrostatic pickup file Pb fixed.
2519     o bug with Rigid-lid version (since c35) fixed.  
2520    
2521    checkpoint36
2522     o implement Crank-Nickelson barotropic time-stepping
2523     o recover Time-Average diagnostics
2524     o fix Pb in checkpoint (PR#19)
2525     o AIM become a standard package ; clean unused CPP_kees
2526    
2527    checkpoint35
2528     o subtantial rewrite of dynamics.f
2529     o allows staggered time-stepping
2530     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2531     o added bottom drag (linear + quadratic)
2532    
2533    checkpoint34
2534     o Modified exchange routines for correct reverse simulation.
2535     o Added verification output to comply with bug fix in impldiff.F
2536       as of c33 (exp2, natl_box).
2537     o Corrected store directives in dynamics.F
2538     o Corrected array boundaries in impldiff.F
2539     o Corrected array dimensions in gmredi.
2540       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2541     o Added routine GLOBAL_SUM_INT to global_sum.F
2542     o Added mdsio_gl.F for ECCO purposes.
2543    
2544  checkpoint33  checkpoint33
2545   o Fixed bug in lower BC in impldiff.F   o Fixed bug in lower BC in impldiff.F
2546   o Fixed confusion about units of forcing arrays in FFIELDS.h   o Fixed confusion about units of forcing arrays in FFIELDS.h

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