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revision 1.107 by cheisey, Mon Dec 2 13:28:30 2002 UTC revision 1.624 by jmc, Tue Mar 7 17:31:03 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 change forcing_In_AB to affects both T,S forcing and Momentum forcing
8     (allow to differentiate between forcing components using new integer flags:
9      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
10     and add new flag to put Dissipation tendency out of Adams-Bashforth.
11    o ecco
12      - enable trend removal from SSH anomaly obs.
13    o adjoint
14      - a fix for PmEpR when #undef EXACT_CONSERV
15      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
16      - try to fix "hidden" recomp. in forward_step for NLFS
17        (NLFS seems broken sometimes after I checked it in)
18    o seaice:
19     - add c-grid version of the dynamic solver:
20       + three new routines that are the c-grid substitute lsr, dynsolver
21         and ostres
22       + put a few fields that were local to dynsolver into global common
23         blocks, so that I can move the computation of stresses etc into
24         seaice_lsr (saves coding but may break the adjoint).
25     - replace more hardwired parameters by runtime parameters
26     - add ice masks that mask the rhs of the implicit solvers where there
27       is no ice (commented out in seaice_dynsolver, because i am not sure
28       if this works properly), eventually this should replace the clipping
29       of ice velocities in seaice_dynsolver to +/-40cm/s.
30    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
31      include it only where its needed
32    o move balancing of fluxes before the call of external_forcing_surf
33    o seaice:
34      - correct units of turning angles (now they are really in degrees)
35      - move computation of GWATX/Y out of main routine into dynsolver
36      - initialize GWATX/Y in seaice_init
37    o Apply mask on Fresh-Water flux (needed for SSH forcing).
38      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
39    o seaice: add runtime flags for turning angles (default to zero)
40    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
41      and trend from exf forcing and ctrl control adjustments
42    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
43      (since checkpoint57x_post)
44    o change the default rotation period to 86164.s = the Earth rotation
45    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
46      and based on a reference stratification. Tested within hs94.cs-32x32x5.
47    o seaice advection: add code for choosing between the default (2nd order
48      central differences) and multiDim advection schemes provided by
49      pkg/generic_advdiff
50    o seaice:
51      - removed all references to SEAICE_GRID.h fields from
52        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
53        (cubed-sphere configuration will change a little)
54      - grid computations in seaice_init are obsolete now.
55      - cleaned up code a little so that is easier to read (hopefully).
56      - added new (better?) discretizations of default advection and diffusion
57        (turn on with SEAICEuseFluxForm)
58      - replace 1 in 3d global fields by kSurface in growth.F
59      
60    checkpoint58a_post
61    o seaice:
62      - bug fix in advect.F
63    o shelfice:
64      - separate shelfice load anomaly from pload (breaks with time
65        dependent forcing), => introduce constant field shelficeLoadAnomaly.
66        Its default is 0., but it may be computed more cleverly from (unknown)
67        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
68        done offline. A good approximation of the pressure load anomaly is
69        necessary to avoid large initial adjustment processes underneath
70        deep-reaching shelfice.
71      - small fix in ISOMIP shelfice_thermodynamics
72      - add more sophisticated thermodynamics of Hellmer (1989), this is
73        now the default
74      - give a few constants more intuitive names
75    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
76      if bulk formulae are used in long integration (especially EmPmR). Turn
77      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
78      if balancePrintMean, the imbalance that is substracted is printed to
79      STDOUT.
80    o fix bug (typo) in obcs_apply_eta.F
81    o add a new package shelfice which enables us to model the circulation
82      underneath shelf-ice with draughts of hundreds of meters.
83     - works
84     - to do: + include improved thermodynamics
85              + check whether kSurfC (from model/inc/SURFACE.h) can be used
86                instead of new field kTopC
87              + can we use topoFile, Ro_surf and existing code in ini_depth.F
88                instead of new field R_shelfIce and new code in ini_depth.F
89                and ini_mask_etc.F?
90              + adjust vertical mixing schemes?
91    o seaice pkg:
92     - add a cpp-flag to include a simple formula for a salinity dependent
93       freezing point of sea water at the surface
94     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
95       meridional stresses are now different (and hopefully correct)
96    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
97       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
98       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
99    o pkg/diagnostics: add options and parameters for regional-statistics
100       diagnostics ; define regions by reading a region-mask from a file
101       (might add other options later)
102    o pkg/bulk_force:
103     - add option and parameters to use AIM surface-flux formulae.
104     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
105       others forcing fields (defined in PARM05, parameter file "data") are loaded
106       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
107     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
108     - use the right EXCH call for uwind,vwind (to work on CS-grid).
109     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
110       and parameters (note: calcWindStress replaces .NOT.readwindstress).
111     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
112    
113    checkpoint58
114    o add "--embed-source" option to genmake2 which, when the supporting
115      tools can be compiled (as determined by genmake2) will turn on the
116      embed_files package which then embeds the entire MITgcm source code
117      (*.[fFhc] + Makefile) used for the build within the executable
118      - requested by CNH but off by default
119      - adds a paltry <9MB to the mitgcmuv executable in most cases
120      - only writes the output when useEMBEDSRC in eedata is true
121    o clean up 3-dim. relaxation codes:
122      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
123      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
124      * Thanks to Tom Haine for testing!
125    
126    checkpoint57z_post
127    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
128      affects output (@ truncation level) of exp. plume_on_slope ; updated.
129    o fix the pickup behavior for obcs in combination with ptracers
130    o fix a bug in ptracers_external_fields_load
131    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
132      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
133    o transfered surface NH pressure to eta field (if exactConserv).
134    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
135         and update lab_sea output.txt file.
136    o completing 3-dim. relaxation code: additional term
137         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
138      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
139      * At compile time, in "EXF_OPTIONS.h" set
140          #define  ALLOW_CLIMTEMP_RELAXATION
141          #define  ALLOW_CLIMSALT_RELAXATION
142      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
143          tauThetaClimRelax3Dim = 15552000.0,
144          tauSaltClimRelax3Dim  = 15552000.0,
145      * 3 cases:
146          1) Use a constant-in-time 3-dim. field
147          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
148          3) Real-time relax. to time-evolving prescribed field
149    o Adding Laplacian-type smoothness constraint on
150      initial and boundary (forcing) controls (ic, bc)
151      * enable at compile-time via
152        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
153      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
154      * Absolute scale somewhat unclear so far
155      * no area weighting was included since no other cost term does so far
156    
157    checkpoint57y_post
158    First step for a NLFS adjoint
159    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
160    o new init. routines for calc_r_star, calc_surf_dr
161    o still need to deal with ini_masks_etc
162    o testreport seemed happy
163    checkpoint57y_pre
164    
165    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
166    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
167    o add new offset feature to offline pkg (plus minor cleanup)
168    o cfc fixes for final year of integration
169    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
170      be in GCHEM_OPTIONS).
171    
172    checkpoint57x_post
173    o fix testreport Pb in multiple test experiment.
174    o cleanup our namelist syntax in verification:
175      - make it more F95 standards compliant (some work still needed)
176      - allows the vast majority of our tests to work with gfortran
177    o Non-Hydrostatic:
178     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
179     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
180    o Allow to apply AB on T,S rather than on AB(gT,gS):
181     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
182     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
183       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
184     - need a "clever" read_pickup to restart from the other AB formulation
185    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
186    o remove some unused variables (reduces number of compiler warnings)
187    o adjoint
188      * Disable useVariableViscosity for adjoint for time being
189        (there are a number of extensive recomputations)
190      * Initialize certain variables needed for adjoint
191    
192    checkpoint57w_post
193    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
194                 fix the singleCpuIO RS version of MDSWRITEFIELD
195       and add a WARNING if using globalFiles=T with multi-processors.
196    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
197      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
198    o tracer advection scheme:
199      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
200       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
201       was not very convenient).
202      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
203       (further tests needed for the implicit DST & Flux-Limiter schemes).
204    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
205      and sRef for convenience, handy, when you want to initialize
206      ptracers in a large domain with a constant non-zero value. Also,
207      untangle ptracers_init.F a little.
208    
209    checkpoint57v_post
210    o change dome exp. to use variable viscosity in side-drag terms.
211    o remove all the files from the cfc_offline test since they are now
212      incorporated into tutorial_cfc_offline which has been producing
213      identical results for a few days of testing
214    o add new parameter: sideDragFactor to enable half-slip-side BC
215      and change side-drag S/R to use viscosity from mom_calc_visc
216      (can switch back by setting sideDragFactor=0.); affects results at
217      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
218       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
219    o vorticity & strain are now computed without masking, to account for
220      no-slip-side BC in variable viscosity calculation ; mask is applied
221      anyway later on, before computing advection/coriolis terms.
222    o modify exp4 to test new obcs support for reading from external files
223      and for passive tracers
224    o fix behavior of ptracers_monitor when monitor output is written to a
225      netcdf-file; still not independent of monitor.F (writes in the same
226      file).
227    o change default value of tRef (put a uniform, meaningful value for ocean
228      & atmos) and initialize sRef (was missing, as Martin mentioned).
229    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
230      to be proportional to enstrophy dissipation length.  Thus,
231       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
232      This is now consistent with Smagorinsky and with the manual.
233    
234    checkpoint57u_post
235    o OBCS and PTRACERS: add open boundary support for passive tracers
236      - either use homogenous (pseudo) v.Neumann conditions or prescribe
237        OB-values from file; this is not different from the way theta and salinity
238        are treated
239      - however, Orlanski-radiation conditions are not supported, and the model
240        will stop if you use pTracers and Orlanski at the same time.
241      - beefed up the rountine obcs_external_fields_load: now only those open
242        boundary values are overwritten with values from files for which there
243        are really files, otherwise the OB-fields remain untouched. This makes
244        it possible to use different OBs at different ends of the domain (as
245        with EXF)
246    o reduce number of exch calls in shap_filt (s2).
247    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
248      truncation level) 4/5 MLAdjust test results (11&12 digits match).
249    
250    checkpoint57t_post
251    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
252    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
253      same truncation, independent of the face number: affects affects several
254      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
255    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
256      note that biharmonic viscosity + no-slip was not tested in any experiment.
257    o fix bug in non-linear free-surf side-drag ; generate new output for
258      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
259    o make mnc honor the writeBinaryPrec flag for most kinds of output
260    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
261    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
262      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
263    o add brackets in multi-terms sum to get same truncation, independent of
264      the face number (manage to get exactly same value of gU,gV at the cs-edge)
265      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
266    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
267      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
268      a maximum grid-scale Reynolds number.  Also, changes all length calculations
269      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
270      Suggested values of viscosity parameters found in mom_calc_visc.
271      Many new viscosity diagnostics available.
272    
273    checkpoint57s_post
274    o Add clearing-house for viscosity calculations, mom_calc_visc and
275      correct numerous bugs in LeithD and Smagorinsky discretizations.  
276      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
277      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
278      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
279      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
280      The Strain-Tension form is now called with useStrainTensonVisc=.true.
281      ViscAhStrain and viscAhTension are now retired.
282    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
283    o In response to JMC's bug report, genmake2 now ignores any soft-links
284      that it finds in the *current* directory when searching for files.
285      Soft-links found in any other source directories will still work as
286      they did before.
287    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
288      a C routine to unlimit the stack size
289    o mnc-ify pkg/aim snapshot vars
290    o mnc-ify pkg/land as requested by Daniel
291    o various changes to mnc including:
292      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
293      - output can now be grouped so that all files within a group
294          change the ITER portion of their names in lock-step together
295      - can now read ("global") PER-FACE (in addition to PER-TILE) files
296          and works with both EXCH1 and EXCH2 (but needs more testing)
297      - writing works for all verification test cases w/ g77 on Linux
298    
299    checkpoint57r_post
300    o make MNC variable initialization happen earlier
301    o add diagnostics for (almost) each term of the momentum Eq.
302    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
303    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
304    o remove MINIMAL_TAVE_OUTPUT option ;
305      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
306    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
307      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
308    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
309    o add time-dependent SST, SSS control
310    o cost terms in ecco/ modularized (new cost_generic.F)
311    o cost_averages routines are modularized (new cost_averagesgeneric.F)
312    o new infrastructure for seaice model vs. obs misfits in seaice/
313      * driver from the_main_loop.F is seaice_cost_driver.F
314      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
315      * gradient check in Exp. 6a of natl_box_adjoint/
316    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
317      (see README file)
318    
319    checkpoint57q_post
320    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
321    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
322      - bug was reported by Jean-Michel and Ian Fenty
323    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
324      update exp. cpl_aim+ocn output.
325    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
326      Needed for high-res. runs with large global files
327      to be able to limit tapelev size
328    o Changed some tests for adjoint:
329      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
330      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
331      * global_ocean.90x40x15/ back to default 3-level checkpointing
332    o Modifications to enable scripted COMMON to MODULE conversion
333      * verification/OpenAD/code/ has necessary scripts and description;
334      * converts, compiles and runs successfully;
335    
336    checkpoint57p_post
337    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
338    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
339      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
340    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
341    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
342      (was already the case for dissipation with mom_vecinv,
343       and also the case for grad.PhiHyd when staggered-timeStep)
344      This will allow to put dissipation out-off the AB time-stepping.
345     Unfortunately, affects truncation error. Update output of exp. that "fails"
346      (cg2d matching number) and leave the others for later: front_relax(10),
347      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
348      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
349    
350    checkpoint57o_post
351    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
352      (2) its ready to be documented during the 20050801 DocFest
353    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
354      for ideal_2D_oce and lab_sea on linux_ia32_g77
355    o set to #undef CTRL_SET_OLD_MAXCVARS_30
356      in global1x1_tot/code_seaice_adj to access indices 32, 33
357      (worth another tag)
358    
359    checkpoint57n_post
360    o adding precip control xx_precip 32
361    o adding swflux control xx_swflux 33
362    o Replacing 10 forcing penalty cost routines by 1 generic.
363    o Implementing partitioning in time-mean and variable adjustment
364      for atmos. state.
365    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
366    o in natl_box_adjoint:
367      * updated exp 1 to 10
368        (but does not have time-mean vs. variable split results yet)
369    o updated global1x1/*_seaice_adj/
370      to incorporate latest changes
371    o enable useSingleCpuIO for mdsio vector routines
372      (applies in particular to tapelev I/O)
373    o removed inefficient K-loop in all active_file*control*.F
374    
375    checkpoint57m_post
376    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
377      and advect_cs (use EXCH-2 and standard cs-32 grid files).
378    o pkg/exch2: filling of face-corner halo regions is optional
379      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
380    
381    checkpoint57l_post
382     tag before updating tutorials (pre-release-2)
383    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
384       for output and interpolation of input fields onto model grid)
385    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
386       Affects results of exp. rotating_tank ; update output.txt.
387    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
388          and taking the square quantity and/or using a fraction-weight field.
389    o fix aim_diagnostics_init.F mate numbers.
390    o add mnc output capability to diagnostics/diagstat and update
391      our cvsignore files for the ACSII output generated
392    
393    checkpoint57k_post
394    o lab_sea now uses diagnostics package and provides a suite of
395      new EXF diagnostics output.
396    
397    checkpoint57j_post
398    o exf
399      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
400        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
401        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
402      * extended diagnostics output
403        - now includes all EXF variables
404        - hs, hl moved to common block
405        - separate S/R for diagnostics, called after ctrl vector is added
406        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
407        - EXFqnet contains true Qnet (i.e. includes qsw)
408      * updated verif. lab_sea, global_with_exf
409      * Rearranging hflux (exf_mapfields -> exf_getforcing)
410        to ensure that diagnostics sees a true EXFqnet
411    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
412    o diagnostics pkg: change pointers so that 1 diagnostic can be used
413      several times with different frequencies.
414    o mnc-ify the thsice package as requested by Daniel Enderton
415      - the monitor--MNC output needs work
416      - many attributes need to be added (most are currently blank)
417    o mnc-ify theaim_v23 package as requested by Daniel Enderton
418      - many attributes need to be added (most are currently blank)
419    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
420    o add Sadourny like discretization to the 4th.O vorticity advection scheme
421    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
422      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
423         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
424    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
425     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
426    
427    checkpoint57i_post
428    o Diagnostics package was changed: diagnostic allocation is now deactivated
429      by setting an empty file name in the namelist (used to be by setting 0 frequency)
430    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
431      add 1rst Order upwind vertical Shear.
432    o add a quick fix for A/B checkpointing in OFFLINE mode
433    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
434      end-run around the C/Fortran linking horror in eesup/src/timers.F
435    o added pkg/runclock: allows user to terminate run based on wall clock
436    o added non-hydrostatic scaling parameter: nh_am2
437    o pkg/my82: futile attempt to make results compiler-independent by adding
438      some "_d 0", etc. no effect.
439    o for mnc output, fill the 'T' coordinate var with myTime and create a
440      separate 'iter' variable for iteration count
441    o pkg/diagnostics:
442      add new capability: output of Global/Regional & per-level statistics ;
443      tested against monitor output (including land & thSIce) on various exp.
444    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
445    
446    checkpoint57h_done
447      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
448      data.diagnostics, data.gchem, data.ptracers) is done.
449    
450    o pkg/diagnostics: prepare for Global/Regional statistics.
451      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
452    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
453      and rename it: DIFFERENT_MULTIPLE
454    
455    checkpoint57h_post
456    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
457    o pkg/diagnostics: change output frequency, now in seconds (instead
458      of Nb of iterations). This requires to change data.diagnostics.
459    checkpoint57h_pre
460    
461    o in mnc, let the user create the output dir if both mnc_outdir_date
462      and mnc_outdir_num are false
463    o add fflags() to pkg/diagnostics which allows one to specify, on a
464      per-file basis, the file precision [default behavior is unchanged]
465    o added diagnostics to pkg/kpp, including computation of mixed layer
466      depth based on a temperature/density criterion
467    o updated verification/natl_box to test the new pkg/kpp diagnostics
468    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
469    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
470    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
471      not mnc -- this mistake was found by JMC and is now corrected
472    
473    checkpoint57g_post
474    o add Adams-Bashforth 3rd Order time stepping:
475      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
476      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
477    checkpoint57g_pre
478    
479    o make lambda[Theta,Salt]ClimRelax spatially varying
480      (default remains spatially uniform constant based on tau)
481    o added new control variables
482      * init. uVel, vVel, etanN
483      * lambda[Theta,Salt]ClimRelax
484    o separate masks used for ctrl_pack/unpack 'from write_grid' output
485      (suggested by G. Forget)
486    
487    checkpoint57f_post
488    o add parameter "baseTime" = model base time = time at iteration zero
489      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
490      account for baseTime shift
491    o move Coriolis arrays from PARAMS.h to GRID.h
492    checkpoint57f_pre
493    
494    o mnc-ifying the seaice package
495    o introduced an alternative length scale calculation for use in the limiting
496      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
497    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
498    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
499      as well as grad(vort3).  Made it compatible with both approximate form
500      for the cubed sphere and full form of these gradients.  Added flag
501      useFullLeith to select between approximate and full form.  
502    o add "d0" in getcon.F to reduce differences between compilers/platforms
503      update output.txt of exp. fizhi-gridalt-hs
504    o change port_rand funtion to allow to set the seed.
505    o fix obscure MNC bug involving conversion between reals and integers
506      - it caused no problems with certain (eg. gcc, ifc) compilers but the
507        new version is now more standards-compliant
508    o adjoint-related modifications
509      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
510      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
511      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
512    
513    checkpoint57e_post
514    o Adding eddy stress controls a la Ferreira et al.
515    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
516    
517    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
518      update output.txt of exp. fizhi-gridalt-hs
519    o add more "Z" dimensions and associated coordinate vars to MNC
520    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
521    o parameter calendarDumps: when set, approximate months (30-31 days) and years
522      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
523      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
524      months and years.  Requires pkg/cal.
525    o diagnostics: add pickup functionality
526      - off by default for backwards compatibility
527      - current version only uses MDSIO -- MNC will be added
528    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
529    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
530    
531    checkpoint57d_post
532    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
533    o modify verification/ideal_2D_oce so that it tests the creation of mnc
534      output from the diagnostics package
535    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
536    o make genmake2 more portable by using ".$FS" instead of ".f" for more
537      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
538    o add coordinate variables to the MNC output from the diagnostics package
539    o change MNC-flags default value: true when useMNC=TRUE
540    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
541      the ability (off by default) to read the grid information using MNC
542    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
543    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
544    o do snap-shot diagnostics at the middle of the time-interval (instead of
545      at the end).
546    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
547      new test for AIM with thSIce + slab-ocean
548    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
549    o move state variable diagnostics to the beginning of the time step ;
550      (note: still needs some work specially for snap-shot diagnostics)
551      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
552    
553    checkpoint57c_post
554    o Change testing option (-ieee) to get closer agreement between g77 & ifort
555    o generate new output.txt files on faulks with g77 & the new -ieee option
556    checkpoint57c_pre
557    
558    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
559      update output.txt of exp. global_ocean.90x40x15
560    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
561      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
562    o add saltFlux(+File) forcing capability with periodicExternalForcing
563    o allow to use pkg diagnostics for GM-Redi & ThSIce output
564    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
565    o improvements for the MNC output from DIAGNOSTICS:
566      - correct handling of the unlimitied dimension
567      - all dims now have associated coordinate variables
568      - variables located at U, V, and Corner ("Z") points are now written
569        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
570        *all* data points are output
571    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
572    o added pkg/seaice/seaice_monitor.F
573    o mdsio_readfield.F can now read files visible only to master MPI process.
574    o pkg/seaice: some test code for ice-modified ocean stress
575    o exf_getffields interpolation defaults to bilinear for all scalar forcing
576      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
577      spurious negative numbers for precipitation and humidity.  Will cause
578      some small numerical differences for integrations using pkg/exf/exf_interp.F.
579    o pkg/ctrl/
580      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
581        May be enabled via doPackDiag
582      *  introduce z-scaling of
583         + gradient (doZscalePack) and
584         + control (doZscaleUnpack)
585    o pkg/mdsio/
586      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
587      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
588    
589    checkpoint57b_post
590    o simplify options in diagnostics_fill arguments (remove weird combinations)
591    o fix MNC coordinate variables so that they now contain per-face index
592      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
593      general, EXCH2 grids are only aligned to a "local" coordinate system
594    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
595    o Implement instantaneous output within pkg diagnostics:
596      setting a negative frequency in data.diagnostics produces
597     "snap-shot" output (as opposed to time-average if freq > 0)
598    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
599      NOTE: change ptracer diagnostics name: use 2 characters to work with
600            more than 9 tracers. Add also diagnostics of advect & diffus flux.
601    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
602      becomes the coordinate variable for the 'T' dimension
603    o add CF-style coordinate variables to MNC
604      - just a first cut:  numbers are meaningless on the cubesphere and
605        missing along the T axis but otherwise it works!
606    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
607    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
608    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
609      this is based directly on what the model compute, so that the content of
610      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
611    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
612    o clean up build options files for SunOS, in particular
613      - remove -traditional from xmakedepend
614      - change -xarch=v9 to -xarch=native for f77
615      - restore use of make (not gmake)
616      - add CC=gcc if using g77
617    o changes per discussion of AM, JMC, & EH3 today:
618      - move redundant "grid" variables out of "state" -- in preparation of
619        creating proper CF-style coordinate variables and in recognition
620        that any/all grid variables can be easily copied (eg. w/NCO) from
621        the grid files into any of the other NetCDF files
622      - *always* output grid variables with MDSIO (this will eventually be
623        changed)
624      - output MNC grid file if useMNC is true
625    o every instance of _END_MASTER() has been found and replaced with
626      _END_MASTER( myThid ) in order to satisfy certain picky Sun
627      preprocessors
628    o re-arrange diagnostics pkg initialisation:
629     - allow each package to extend the available diagnostics list
630     - add some checking and fix small problems (multi-threaded, ...)
631     - new S/R diagnostics_fill (replace fill_diagnostics):
632       look through the short list of active diag. (instead of the long list)
633       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
634    
635    checkpoint57a_post
636    o this set of changes restores TAMC compatibility
637      tested for global_ocean.90x40x15 adjoint on trough
638      (what a pain)
639    
640    checkpoint57a_pre
641    o some modifs in tools/build_options for sunos
642    o call ctrl_pack for ctrl at end for optimcycle=0
643    
644    checkpoint57
645    o add horizontal bi-harmonic viscosity for vertical velocity
646      - new parameter viscA4W (defaults to viscA4)
647      - affects only non-hydrostatic code
648      - to be done: no-slip lateral boundary conditions
649    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
650    o implement Implicit Vertical advection for pTracers
651    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
652      (implemented also for implicit vertical diffusion & advection)
653    o OBCS: extend application of tracer open boundary conditions
654      to a strip beyond the boundary of width Olx/Oly
655    o add call monitor to TAF set of required calls (flow directives)
656      and include in natl_box_adjoint
657    o untangle a few ifdefs related to cost, ctrl, autodiff
658      untangel a few ALLOW_ECCO_OPTIMIZATION
659    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
660      (theta2, salt2 in ecco_cost_weights)
661    
662    checkpoint56c_post
663    o OBCS as control variables
664      - update ctrl_ad_diff.list, obcs_ad_diff.list
665      - remove balance of obcs controls from default
666      - fix index bug nobcs in ctrl_init
667      - fix dummy fields filen in ctrl_pack
668      - add dummy weights for obcs
669    o lsopt: comment out fort.94 output
670    o optim:
671      - remove unnecessary header files
672      - adjusted namelists
673      - add xerbla.F to Makefile
674    o exf:
675      - multiple modifications of exf_check_range
676      - unit change in exf_init_runoff from [m/year] to [m/s]
677    o mdsio:
678      - i/o-vector change debugLevel from debLevA to debLevB
679    
680    checkpoint56b_post
681    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
682      is called from DO_THE_MODEL_IO
683      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
684      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
685      - clean up PTRACERS_WRITE_TIMEAVE a little
686    o add another verification experiment that tests both the cfc-pkg and
687      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
688      reactive tendencies treated inline with regular timestepping
689    o testreport previously did a lousy job of comparing small numbers, so
690      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
691      implemented in the little c-progam tmp_cmpnum.c which is embedded in
692      testreport.
693    o ptracers_monitor: bug fix for MPI
694    
695    checkpoint56a_post
696    o GCHEM: finish reorganizating the package
697      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
698        (introduces another 3D-array for each passive tracer, but only if
699        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
700        gchemTendency is not needed because the timestep is done separately)
701      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
702      - GCHEM is now---more or less cleanly---separate from PTRACERS
703      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
704        so clear to me how that should be done in a general way.
705    o CFC: improve formatting of output in CFC_ATMOS
706    o PTRACERS:
707      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
708        that ALL experiments with ptracers enable can be checked. This makes
709        GCHEM_MONITOR obsolete.
710      - include a runtime parameter PTRACERS_monitorFreq that defaults to
711        monitorFreq
712      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
713    o add PTRACERS (PTR0[1-5]) to testreport output
714    o exf_check_range:
715      * default changed to .TRUE.
716      * will check values for niter0 if debLevA, every timestep if debLevB
717      * STOP in exf_check_range if 'out of range'
718      * range chosen generous to allow for potential extema
719      TBD: a version with stricter range
720           permitted range would be runtime parameters
721    o GMredi:
722      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
723      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
724      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
725    o GCHEM:
726      - move call to GCHEM_FORCING_SEP, so that it is now called before
727        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
728      - introduced a useGCHEM runtime flag and applied it everywhere.
729      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
730        this flag is now only visible within GCHEM-pkg routines.
731      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
732        be replaced by a 3D array that is computed before thermodynamics; for
733        this, the tracer ID iTracer had to be included into the parameter list
734        of ptracers_forcing
735      - set up forward_step to call gchem_forcing, that will replace
736        gchem_forcing_int in ptracers_forcing
737      - cleaning up
738    o small cleaning of exch2: remove files that are also in eesupp/src
739    
740    checkpoint56
741    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
742    o mnc: cleanup "full" files--fixes out-of-memory problem
743    o ECCO-GODAE
744      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
745      * fully merged and updated from SIO code
746        windstress sign change affects
747        - exf_inscal_[u/v]stress
748        - sign of xx_tau[u/v] adjustments
749        - signs in cost_scat
750      * ctrl_get_gen: avoid update of tau[u/v] for first few days
751      * natl_box_adjoint updated and compressed
752      * 2-level checkpoint switch added
753        (tested in EXP. 1 of natl_box_adjoint)
754      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
755    o SVD
756      * first complete, non-hacked version for SVD calculations
757      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
758        performed via direct access files admtlm_vector.it????
759        (via ctrl_[un]pack)
760      * optimcycle is used for ARPACK iteration counter
761        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
762      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
763        and add linear transforms where necessary
764      * controls are initial/final SST, SSS (can be extended; need to check
765        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
766    o mdsio: filename info to both stderr, stdout
767    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
768      from sign change
769    
770    checkpoint55j_post
771    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
772      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
773    o add consistent build directories and .cvsignore files to verification
774    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
775    o make all subroutines 30 or less characters in length for certain older
776      compilers to work (a thorough search only turns up two routines in
777      pkg/ptracers)
778    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
779      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
780    
781    checkpoint55i_post
782    o change arrays for total vertical diffusivity (2.D if explicit,
783      3.D if implicit) ; each ptracer uses its own background value.
784    o added mnc/NetCDF output capability to ocn_compon_interf
785      - added bits to verification/cpl_aim+ocn so that it can run on
786        ITRDA and other clusters without the mpirun "-wd" option
787    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
788      configuration
789    o give MNC the ability to create additional files rather than
790      exceeding a specified file size limit "MNC_MAX_FILESIZE"
791      - the default is just less than 2GB which is a practical limit
792        on many systems
793    o Compute the non-local term using either KPP vertical diffusivity (=default)
794       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
795    
796    checkpoint55h_post
797    o add verification test "vermix"
798    o remove all the *_ioinc flags and replace with the single global
799      outputTypesInclusive flag
800    o allow to set a vertical profile of vertical diffusivity for T & S
801    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
802    o useMNC moved from data.mnc to data.pkg
803    
804    checkpoint55g_post
805    o Renaming carbon AD experiments to comply with testreport conventions
806    o Updating adjoint of Held-Suarez hs94.1x64x5
807    o Fixing directives for non-ECCO forward_step, after ECCO directives
808      have been fixed to avoid recomp. of do_oceanic_phys
809      Works well for global_ocean.90x40x15,
810      but recomp. issue remains for carbon
811    o Updating adjoint output for natl_box_adjoint after
812      pkg/ecco has been modified (see taga c55d_post)
813    
814    checkpoint55f_post
815    o rename to timeave_init_fixed
816    
817    checkpoint55e_post
818    o some delicate re-shuffle of store directives to avoid one
819      extra call of do_oceanic_physics
820      affects ecco_the_main_loop.F, do_oceanic_physics.F
821      checkpoint_lev1_directives.h
822    o NB: this may break global_ocean adjoint temporarily,
823      but it is clear how to fix it. Will do later, need this now.
824    
825    checkpoint55d_post
826    o ECCO specific cost function terms (up-to-date with 1x1 runs)
827    o ecco_cost_weights is modified to 1x1 runs
828    o modifs to allow observations to be read in as
829      single file or yearly files
830    o enable to read exf forcing fields as either
831      single file or yearly files (flag useExfYearlyFields)
832    checkpoint55d_pre
833    
834    o switch between 2-level and 3-level checkpointing
835    o add ability of MNC to write local and "partial" (eg. 2D slices where
836      the full 3D field is never actually stored) arrays to NetCDF files
837      with the correct (that is, the complete multi-dimensional) set of
838      array indicies
839      - used in mom_vecinv() to write the diagFreq output
840      - tested (demonstrated) in verification/aim.5l_cs
841    o further mnc-ification
842      - add verification/lab_sea to the list with mnc setups
843      - fix undefined mnc v-names in cd_code
844      - add kpp to mnc output (both snapshot and timeave)
845    o non-hydrostatic code
846      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
847        in calc_gw.F
848      - defaults to viscAh
849      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
850        friction or Leith) in non-hydrostatic mode, as long as there is
851        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
852    o pkg/cost
853      extend simple cost functions to treat time mean quantities
854      (T,U,V) via cost_accumulate_state from cost_tile
855    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
856        be 2 times larger than the minimum size the advection scheme requires.
857        now get a perfect conservation of salt in advect_cs test-exp (updated)
858    o GGL90 (Gaspar's TKE mixed layer)
859      - add horizontal diffusion of TKE, requires exchanges in
860        do_fields_blocking_exchanges, horizontal diffusivity is zero by
861        default. In OPA there is no horizontal diffusion of TKE but the
862        mixing coefficients are computed from a horizontal average of TKE of
863        6 points or so. I think that diffusion has a little more physical
864        justification.
865      - clean up ggl90_calc in the hope of reducing memory usage (this hope
866        was in vain)
867      - mask tke-variable in ggl90_init
868    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
869    o fix biharmonic diffusion on CS-grid.
870    o more obcs stuff
871      - added obcs_external_fields_load as an alternative to the EXF-pkg option
872        for reading boundary values. This routine is called from
873        obcs_prescribe_read
874      - updated obcs_check
875      - changed sponge layer relaxation parameter units for days to seconds
876      - turned off sponge layer by default
877      - changed argument list of OBCS_CALC to myTime+deltaTclock
878      - fixed about 35 bugs in obcs_external_fields_load
879    
880    checkpoint55c_post
881    o obcs stuff
882      - new runtime flags useOBCSprescribe, useOBCSbalance
883      - re-arranged obcs_calc
884      - moved exf_getobcs to obcs_prescibe_read
885        obcs_prescibe_read is called after ORLANSKI stuff
886        and independent of it (executable can contain all).
887      - updated obcs_check
888      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
889        These may be necessary only if tangential velocities are
890        prescribed at OB, not sure, needs testing.
891    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
892      which simplifies the calls and passes the ifc check-bounds test
893    
894    checkpoint55b_post
895    o add a 2D scalar, Z location, exchange_2 routine.
896    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
897      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
898      affects advect_cs results (for the wrong reason): update output.txt
899    o use a more standard discretization for biharmonic viscosity ;
900     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
901      affects results of dome set-up: update output.txt
902    o fix gad_advection.F (CubedSphere part), back to version 1.23
903    o fix bug in mom_vi_del2uv.F (CubedSphere part).
904    
905    checkpoint55a_post
906    o merged code to
907      * prescribe/read time-dependent open boundaries
908        (works in conjunction with exf, cal)
909      * sponge layer code for open boundaries
910      * each boundary N/S/E/W now has its own CPP option
911        (healthy for the adjoint)
912    
913    checkpoint55
914    o up-to-date adjoint of previous breaks
915      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
916      - global_ocean_ebm: adjoint still needs fix (TLM ok)
917      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
918      - carbon: * remove tr1-related adjoint verification
919                * add ptracer as control variable
920    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
921      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
922    
923    checkpoint54f_post
924    o in verification/carbin/ remove experiment related to
925      ALLOW_PASSIVE_TRACER (array tr1 etc)
926      code_ad/ input_ad/ results_ad
927    
928    o add two new packages
929      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
930        + subject to optimization (memory)
931      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
932        + subject to reordering (many GOTOs in the original code)
933        + so far opps is called for every (i,j) point, and then operates in
934          the vertical; one may want to reorder the scheme in order operate in
935          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
936          fields)
937    o overhaul of IO so that we now have flags for MDSIO and/or MNC
938      - all verification tests compile and run with linux_ia32_g77
939      - defaults are compatible with current input files--nothing
940        should change if you were not previously using MNC
941      - MNC output has been added in numerous places (eg. timeave)
942        but there are still a few writes not yet do-able with MNC
943        (this is in progress)
944      - flags now allow for either/or/both use of MDSIO and MNC and
945        documentation will soon follow
946      - numerous small formatting cleanups for ProTeX
947    o add version info (via BUILD_INFO.h) to MNC and stdout
948    
949    checkpoint54e_post
950    o add two new packages
951      - pp81 (Packanowski and Philander, 1981), Richardson number and
952        stratification dependent mixing
953      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
954      - these scheme operate in a similar manner as KPP (without ghat, of
955        course), however there is only one diffusivity that is used for both
956        temperature and salinity (and passive tracers)ç
957    o add offline package
958    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
959      provided by Stephanie Dutkiewicz
960    o genmake2: add ability to search for C compilers and cleanup test output
961      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
962    
963    checkpoint54d_post
964    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
965    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
966      leading to additional shift by 5 days each year of integration
967       (i.e. leading to considerable offset over the years)
968    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
969    o start with no AB and no initial filtering (staggerTimeStep):
970      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
971    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
972      (external loading & cpl import/export stay in forward_step.F)
973    o update coupling interface to work with new staggerTimeStep
974    o change MDSIO ptracers_pickup.
975    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
976    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
977    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
978    
979    checkpoint54c_post
980    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
981      this affects (truncation error) output.txt of test-exp:
982       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
983    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
984    o change Qnet to always be the net heat flux, (+upward).
985      affects (truncation error) output of natl_box exp.: updated
986    o define the max number of passive tracers in PTRACERS_SIZE.h
987    o start to test mnc routinely in exp0
988    o add sea-ice loading (sIceLoad) as a new forcing field.
989    
990    checkpoint54b_post
991    o add testreport "-j JOBS" option for parallel builds (tested and pretty
992       impressive on Altix and Opteron systems)
993    o diagnostics can now write NetCDF files through the mnc package
994    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
995    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
996    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
997      affects (truncation error) output of lab_sea & natl_box exp.: updated
998    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
999    
1000    checkpoint54a_post
1001    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1002    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1003    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1004    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1005      + internal_wave (shift in writing cg2d_ini_res)
1006    checkpoint54a_pre
1007    
1008    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1009      - modified verification/lab_sea and natl_box_adjoint accordingly
1010    
1011    checkpoint54
1012    checkpoint53g_post
1013    o prepare splitting of thermodynamics: store convect.counter in common block
1014    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1015      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1016    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1017    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1018    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1019    o restore adjointability
1020    
1021    checkpoint53f_post
1022    o modifications that affect AIM experiment results (update output.txt):
1023      - no advection of S at top interface Nr (pkg/generic_advdiff)
1024      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1025    o AIM pkg:
1026      - include stability function into surf.Flux derivative relative to Tsurf
1027      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1028    
1029    checkpoint53e_post
1030    o merged cylindrical coord configuration
1031    o added rotating_tank experiment
1032    checkpoint53e_pre
1033    
1034    checkpoint53d_post
1035    o faulks upgraded: re-generate output.txt that have changed:
1036       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1037    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1038    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1039    o added Sadourny discretization of Coriolis
1040      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1041      - re-enabled use of omega3 (useAbsVorticity)
1042    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1043      vector-invariant equations
1044      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1045    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1046      hopefully without new bugs
1047      - still to do: biharmonic friction for non-hydrostatic w
1048    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1049    o regenerated output for global_ocean_ebm (using -ieee)
1050    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1051      of mom_common/
1052      - simple re-arrangement of instructions within computing loop
1053    checkpoint53d_pre
1054    
1055    checkpoint53c_post
1056    o new version of coupler for AIM+thSIce and Ocean models
1057     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1058     - land: change Evaporation of snow
1059     - aim with thSIce: fix bug in snow-precip.
1060    o changes to calc_gw.F
1061     - bug fix for w^2 term near the bottom boundary
1062     - (hopefully) improve the lateral slip boundary condtions for use with
1063        partial/looped cells
1064      - because the bug fix changes two verification experiments anyway (exp5
1065        and plume on slope), change the lateral boundary condition from half slip
1066        to the value of no_slip_sides
1067    o ebm package wasnt quite up to the parallel task. Fixed that.
1068    o Adjoint of EBM package + verification
1069      * TLM OK
1070      * ADM not sufficient accuracy yet (needs further testing)
1071    
1072    checkpoint53b_post
1073    o Commiting new energy balance model to repository
1074      * package is pkg/ebm
1075      * verif. is verification/global_ocean_ebm
1076      * references are in ebm_driver.F
1077    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1078    C        Global thermohaline circulation. Part I:
1079    C        Sensitivity to atmospheric moisture transport.
1080    C        J. Climate 12(1), 71-82
1081    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1082    C        Global thermohaline circulation. Part II:
1083    C        Sensitivity with interactive transport.
1084    C        J. Climate 12(1), 83-91
1085    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1086    C        Destabilization of the thermohaline circulation
1087    C        by atmospheric eddy transports.
1088    C        J. Climate 7(12), 1870-1882
1089    o Will need long integration testing.
1090    checkpoint53b_pre
1091    
1092    o created pkg/mom_common in preparation for variable viscosity code
1093    o renamed and split ini_mnc_io
1094    o pkg/land: only liquid water can diffuse or run-off
1095    o AIM using land: soil wetness availability account for snow
1096    o added printMapIncludesZeros to EEPARMS namelist
1097    
1098    checkpoint53a_post
1099    o restore TAMC compatiility for exf_constants.h
1100      (no usage of _d in .h)
1101    o Additional storing in KPP in an attempt to fix
1102      TAMC problem with adjoint of KPP code.
1103      (no success...)
1104      Identical code works fine with TAF.
1105    o Fixed verification/natl_box_adjoint experiments.
1106      Initial conditions for Experiments 4 and 5 are now
1107      set to "SEAICE_initialHEFF=0", which is more reasonable,
1108      and hence gives results closer to that of Experiment 2.
1109      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1110    
1111    checkpoint53
1112    o stable checkpoint with up to date adjoint
1113      TLM tests only run for 1st grdchk at the moment. Its unclear if
1114      this is a code problem or a problem with resetting code for g_
1115      variables that is being autogenerated wrong.
1116      Otherwise:
1117       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1118       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1119         are both still in chaos following their security messes.
1120    
1121    checkpoint52n_post
1122    o various build (mostly genmake2) changes including:
1123      - ability to build/run more easily within Cygwin and MacOS X
1124      - more complicated Makefiles with a stronger dependence on Gnu Make
1125    o pkg/seaice modifications
1126      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1127        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1128        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1129      - changed proxy for geostrophic velocity and updated
1130        verification/lab_sea/results/* accordingly
1131      - removed ADI dynamic solver from pkg/seaice
1132      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1133        they caused a segmentation fault under certain circumstances
1134      - removed unused field WATR
1135    o bug fix in exf-package:
1136      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1137         now reflect that.
1138    o small fixes in the cal-package:
1139      - set reference date to first of January for the 'model'-calendar
1140      - failing of cal_CheckDate in cal_FullDate now actually results in a
1141        warning
1142    o small modifications in exf-package to increase flexibility:
1143      - change climtempfreeze from a constant to a runtime parameter that
1144        is specified in data.exf_clim (default = -1.9)
1145      - introduce runtime parameter windstressmax (default = 2.0) that is
1146        specified in data.exf
1147    o fix in pkg/thsice:
1148      - update Evap (Tsf changes) to be consistent with Latent heat flux
1149      - maintain snow precipitation unchanged (even if Tsf >=0).
1150     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1151    
1152    checkpoint52m_post
1153    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1154      this does not change any of the results, because myIter=0 in swfrac always
1155      lead to jwtype=2 (the default anyway), but the call makes little sense
1156      as a default
1157    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1158    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1159      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1160    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1161    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1162    o extending useSingleCpuIO option to work with new exch2 I/O format
1163      - old-style, missing-tile I/O is still accessible by defining CPP
1164        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1165    o monitor package can write to NetCDF files and/or STDOUT
1166    o fix re-definition bug in MNC_GRID_INIT_ALL()
1167    o doc/api_reference added
1168      - a framework for building an API Reference Manual using all
1169        the "protex" comments embedded in the code
1170      - see pkg/generic_advdiff, pkg/mnc for examples
1171    o MNC:
1172      - make myThid the last argument for all subroutines
1173      - new default for the grid files: NO halos
1174      - add useMNC and other run-time flags
1175      - separate per-file-group handling of the unlimited dimension
1176      - early initialization of MNC w/ flags read at the eeboot stage
1177        and lookup tables set in initialize_fixed
1178      - write all MNC output to a freshly-created directory
1179    o thermodynamics sea-ice (thsice) is now tested with testreport.
1180    o test exp. advect_cs: use the standard cs32 grid ; update output.
1181    o Added functionality to grdchk:
1182      pick global i,j,k position (or nearest wet) where to perform check.
1183    
1184    checkpoint52l_post
1185    o new land formulation:
1186      a) use ground enthalpy as prognostic variable to ensure exact
1187         energy conservation.
1188      b) account for water temperature and for latent heat of freezing
1189         in all processes (rain, run-off, ground storage)
1190      c) compute surface and ground temperature implicitly.
1191    o aim_v23 modification for new land model:
1192      a) Treat separately land / ocean / sea-ice surface fluxes
1193         to allow implicit computation of land & sea-ice surface temp.
1194      b) add snow precipitation.
1195    checkpoint52l_pre
1196    
1197    o fix problem (when 1 tile is empty) in min/max monitor.
1198    o fix bug in timeAve (u,vZetatave in common block)
1199    o no restoring terms under ice for pkg/seaice
1200    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1201    o bug fix for pkg/seaice pickups
1202    o change MNC call locations and add coordinate attributes
1203    o mask vorticity at the corner ; affects global_ocean.cs output
1204    o fix ini_curvilinear_grid ; test CS experiments with mpi
1205    o aim.5l_cs: modify sea-ice fraction input file ; update output
1206    o exf: Adding simple range check routine for exf fields after read
1207    
1208    checkpoint52k_post
1209    o removed top-level directory "diags"
1210      - we migrated these functions to pkg/timeave a long time ago
1211    o fixed bug introduced in pkg/monitor
1212    o accuracy ctrlprec = 32 insuffient for gradient checks using
1213      averaged fields (I/O via cost_averages)
1214      -> use ctrl.h in active_file*.F to control I/O precision.
1215    o paramter list of CALL ADTHE_MAIN_LOOP
1216    o added initial do_the_model_io to ecco
1217    o set all ...Freq to zero after cost_final
1218      taveFreq, dumpFreq, pChkptFreq
1219    o MAIN and ECCO differentiability restored
1220    
1221    checkpoint52j_post
1222    o fix nchklev in tamc.h for global_ocean...
1223    o Bringing flow and store directives up-to-date
1224    o Really weird thing!
1225      call do_the_model_io from the_main_loop with parameters
1226      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1227      TAF places a faulty re-call of initialise_varia
1228      after cost_final call which should not be there!
1229    checkpoint52j_pre
1230    
1231    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1232      error messages
1233    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1234    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1235      debug output
1236    o modfied mdsio_writefield.F to handle non-global files under exch2
1237    o update AIM Cubed-Sphere exp (aim.5l_cs):
1238      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1239    o update AIM Equatorial Channel exp:
1240      use standard aim_v23 pkg and change the SST fields to be more realistic.
1241    o globalFile now works with exch2
1242    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1243      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1244    o limit timeave output for hi-res integrations
1245    
1246    checkpoint52i_post
1247    o removed CPP_EEOPTIONS.h from verification/*/code
1248    o updated the tiling for global_ocean_pressure
1249    checkpoint52i_pre
1250    
1251    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1252      the old pkg/aim).
1253    
1254    checkpoint52h_pre
1255    o shortened offending lines in exch2_send_rx?.template
1256    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1257    o genmake2: add build & execute test for NetCDF code
1258    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1259      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1260    o added useSingleCPUIO flag to monitor.F and mon_out.F
1261    o added temporary hack for sea-ice dynamics on the cube:
1262      metric terms are ignored and it is assumed that
1263      there is no sea-ice on cube faces 1, 2, 4, and 5.
1264    
1265    checkpoint52f_post
1266    o added exch2 cube routines to pkg/exch2
1267    o modified hs94.cs-32x32x5 to use it
1268    o added new grid files to hs94.cs-32x32x5
1269    checkpoint52f_pre
1270    
1271    checkpoint52e_post
1272    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1273      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1274    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1275      to work with implicit vertical advection and AB ;
1276    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1277    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1278     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1279    checkpoint52e_pre
1280    
1281    o fix bug in impldiff when Nr=1 or Nr=2.
1282    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1283    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1284    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1285      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1286    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1287    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1288    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1289    
1290    checkpoint52d_post
1291    o re-tiled many expts to allow comparison in multi-processor mode
1292      - updated output accordingly
1293      - changed hs94.128x64x5 to use intial T from file rather than use the
1294        random number generator
1295    o add infrastructure in model routines for fizhi and gridalt packages
1296    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1297    o changes to permit hi-res, cubed-sphere, configuration
1298      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1299      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1300      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1301        of surface winds for the cube
1302      (A verification experiment, based on global_ocean.cs32x15, but with
1303       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1304       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1305       complete with example surface forcing files and matlab scripts to look
1306       at the output and compare it with that of global_ocean.cs32x15.)
1307    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1308       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1309       to conform to the common rule.
1310    o check-in the first version of the coupler + interfaces for multi-components
1311       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1312       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1313       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1314       - ocean and atmos. share the same horizontal grid (no interpolation).
1315       - exchanges between component and coupler is done in forward_step
1316    o new verification experiment, cpl_aim+ocn:
1317       coupled ocean - AIM atmosphere on cs32 grid.
1318    
1319    checkpoint52d_pre
1320    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1321    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1322    
1323    checkpoint52c_post
1324    o Fixing OPTIONS files for use of exf:
1325      - ALLOW_ECCO not needed
1326      - ECCO_CPPOPTIONS.h should not be included from
1327        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1328        as has been the case in the past
1329      - All cal/exf related options are currently set in
1330        single header file. Should remain so until we
1331        agree on a consistent new policy.
1332    o Removed all CPP options for cal package.
1333      cal has no more CPP options.
1334    o modified STOREs in GAD_ADVECTION
1335    o corrected key comp. for passkey
1336    
1337    checkpoint52b_post
1338    o new version: "thsice" of thermodynamic sea-ice pkg:
1339     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1340     - modify fluxes but do not change theta directly;
1341     - light cleaning of bulk_force pkg (still needed with thsice).
1342     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1343       + output_thsice.txt to test thsice & bulk_force pkgs.
1344    o put back grid & coriolis monitor output.
1345    checkpoint52b_pre
1346    
1347    o call "do_the_model_io" at the beginning (=> dump initial state)
1348    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1349    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1350      (need info on NUMBER_OF_PTRACERS)
1351    o missing PTRACERS headers in some routines
1352    o default tamc.h in pkg/autodiff supposed to crash
1353      to ensure proper customization
1354    
1355    checkpoint52a_post
1356    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1357      - moved surfaceTendencyTice from pkg/seaice to main code
1358      - subroutine FREEZE_SURFACE now limits only surface temperature
1359        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1360        => new output.txt for global_ocean.cs32x15 & global_with_exf
1361      - keep the old version of FREEZE for backward compatibility;
1362        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1363      - corresponding modifs for TAF directives
1364    o added surface flux output variables to TIMEAVE_STATVARS
1365    o time-averaged output for pkg/ptracers
1366    o fix problem with ECCO-related divided adjoint
1367      snapshot file was missing some ad-variables,
1368      but no warning issued by TAF
1369    
1370    checkpoint52a_pre
1371    o some bug fixes for #undef REAL4_IS_SLOW
1372    
1373    checkpoint52 = ecco_c52_e35
1374    o after testing adjoints of checkpoint51u_post
1375    
1376    checkpoint51u_post
1377    o this is the post-merge tag of the ecco-branch
1378      (needs another clean checkout and re-testing)
1379    o various natl_box_adjoint configs and results
1380      but no input fields
1381    o obcs adjoint not yet merged!
1382    o adding ECCO global 1x1 and 2x2 degree configs
1383    o updated/extended some store directives for seaice
1384    o pkg/ecco now containes ecco-specific part of cost function
1385    o top level routines the_main_loop, forward_step
1386      supersede those in model/src/
1387      previous input data.cost now in data.ecco
1388      (new namelist ecco_cost_nml)
1389    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1390    
1391    checkpoint51t_post
1392    o this is the pre-merge tag of the ecco-branch
1393    
1394    checkpoint51s_post
1395    o cleanup: removed various obsolete #define-s
1396    o pkg/grdchk
1397      - renamed 'ph-grd 3' to 'grad-res'
1398      - merged from ecco-branch
1399        (remaining bug fixes for obcs gradient checks)
1400      - additional high-precision output for testreport
1401        (grep for 'precision_grdchk_result')
1402    
1403    checkpoint51r_post
1404    o cleaned up or removed CPP_OPTIONS.h files
1405    o updated results for some of the tests to reflect the new
1406      optfiles (-ieee: -O0 instead of -O3)
1407    
1408    checkpoint51q_post
1409    o cd_code:
1410      - moved cd_scheme.F -> cd_code_scheme.F
1411      - separate read_checkpoint from cd_code_ini_vars.F
1412      - separated cd_code part from write_checkpoint
1413      - updated AD_SOURCE, generated .flow
1414      - added CD_CODE_VARS.h to the_main_loop
1415      - Moving cd_code specific store dir.s to pkg/cd_code
1416    o ctrl package totally restructured
1417      - pack/unpack now optional and decoupled from
1418        xx_/adxx_ I/O
1419      - ctrl_pack/unpack cleaned
1420        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1421      - confined inclusion of AD_CONFIG.h to where necessary.
1422    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1423    
1424    checkpoint51p_post
1425    o create initial cd_code package
1426      - WARNING: the initialization of fields within packages
1427        is broken because INI_FIELDS (where READ_CHECKPOINT is
1428        called) is called *before* PACKAGES_INIT_VARIABLES.
1429        This seems to be backwards since
1430        1) its important to initially zero the entire field including
1431           the "halo" region
1432        2) zeroing needs to be done *before* reading pickup info
1433           and the pickup call might or might not happen in any
1434           particular run
1435      - this needs an overhaul for R2
1436    o cleanup verification/*/code/GMREDI_OPTIONS.h
1437    o cleanup testreport
1438    
1439    checkpoint51o_post
1440    o bringing AD-related verif's up to date with genmake2
1441      - carbon/
1442      - global_ocean.90x40x15/
1443      - hs.94.1x64x5/
1444      - (front_relax/ )
1445    o (more) consistent directory structure for AD-related verif.'s
1446    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1447    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1448    o bug fix in find_alpha.F for MDJWF:
1449      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1450        change rho -> rho-rhoConst
1451      - replace call find_rho to find_rhonum
1452    o initialisation of rFlx extended to full array (required by TAF)
1453      and shifted to thermodynamics
1454    o removed PTRACERS.h in ptracers routine
1455    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1456    o Correcting initialisations for fVerU, fVerV.
1457    o helping TAF to recognize dependency on kUp for
1458      fVerU, fVerV
1459    o Replacing delZ by delR in pkg/ctrl/
1460    checkpoint51o_pre
1461    
1462    o undid all of cp51 pending some cleanups and discussion
1463    o added the [#include "AD_CONFIG.h"] statement to all files that need
1464       it for adjoint/tl #defines
1465     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1466     o removed tools/genmake since it no longer works
1467    
1468    checkpoint51n_post
1469    o modifications to make FREEZE flux visible to pkg/kpp
1470      - moved surfaceTendencyTice from pkg/seaice to main code
1471      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1472      - subroutine FREEZE now limits only surface temperature
1473        (this means new output.txt for global_ocean.90x40x15,
1474         global_ocean.cs32x15, and global_with_exf)
1475    o added surface flux output variables to TIMEAVE_STATVARS
1476    
1477    checkpoint51n_pre
1478    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1479    o added [#include "AD_CONFIG.h"] to all files that use the following
1480      defines:
1481      - ALLOW_ADJOINT_RUN
1482      - ALLOW_TANGENTLINEAR_RUN
1483      - ALLOW_ECCO_OPTIMIZATION
1484    
1485    checkpoint51m_post
1486    o incorporating changes to get TAMC/TAF working in genmake2
1487      - added new TAMC/TAF targets to the Makefile
1488      - various cleanups related to package handling
1489      - these changes should have no impact on the forward model
1490    
1491    checkpoint51l_post
1492    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1493     - faster algorithm for cal_addtime.F
1494     - higher precision arithmetic, where needed
1495     - pkg/exf *startdate variables changed from calendar date to
1496       model integration time
1497    
1498    checkpoint51l_pre
1499    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1500    o enable to apply restoring on S & T only in a latitude band.
1501    o update output (external_forcing_surf modif. change truncation errors)
1502       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1503    
1504    checkpoint51k_post
1505    o change default to: useNHMTerms=.FALSE.
1506     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1507       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1508     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1509        exp1, ideal_2D_oce
1510     - change data file of oceanic exp (leave the results unchanged for now)
1511       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1512    o set gravitySign automatically according to the vertical coordinate used
1513      (and change sign: back to "logical" value: +1 when R increases downward)
1514    o added an include barrier to the default CPP_OPTIONS.h and
1515      removed the #include "PACKAGES_CONFIG.h" from it
1516    o fix a bug in mom_fluxform (from chk51j_post)
1517    
1518    checkpoint51j_post
1519    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1520    o adjusted some flow directives (dynamics, thermodynamics)
1521    o added cubed-sphere case to test cost function
1522    o heckpoint_lev?_directives.h now include
1523      pkg-specific directives, whenever those are enabled.
1524    o Moving pkg-specific flow directives to corresponding pkg
1525      Moving pkg-specific differentiation list to corresponding pkg
1526      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1527      ---> conventions are
1528           - pkg_ad.flow
1529           - pkg_ad_diff.list
1530           - pkg_ad_check_lev?_dir.h
1531    
1532    checkpoint51i_post
1533    o merge of the branch-genmake2
1534      - knowingly breaks the older genmake
1535      - automatic generation of all ALLOW_${PKG_NAME} defines
1536      - new testreport supersedes older testscript
1537    o large number of package inclusion and header cleanups
1538    checkpoint51i_pre
1539    
1540    o new output for adjoin of global ocean vector invariant
1541    o fix for checkpoint of thermodynamic seaice and bulk_force
1542    o Steph gchem various cleanups
1543    
1544    checkpoint 51h_pre
1545    o fixed some single quotes
1546    o modify gchem pkg to be more versatile
1547    o modifications to clean up dic pkg
1548    o add pkg/cfc
1549    
1550    checkpoint51g_post
1551    o provide links for ARPACK and ADM*TLM
1552    o start removing verification/vero/
1553    o update AD-related stuff
1554      (in particular some IF-statements in model/src/ routines)
1555    o adding to verification/global_ocean.90x40x15/ adjoint of
1556      vector invariant setup
1557    
1558    checkpoint51f_post
1559    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1560    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1561      of tracer Green's fucntions for ocean inversion project.
1562    
1563    checkpoint51f_pre
1564    o Added on-the-fly spatial interpolation capability
1565        "USE_EXF_INTERPOLATION" to pkg/exf.
1566      - This is a temporary Cartesian-grid hack until
1567        the super-duper ESMF coupler becomes available.
1568      - See verification/global_with_exf/README for usage example.
1569      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1570        flags and modified pkg/seaice accordingly.
1571    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1572        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1573        non-local transport term.
1574    
1575    checkpoint51e_post
1576    o pkg/mom_vecinv:
1577      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1578      - add time-ave diagnostic of vorticity advection.
1579    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1580    o atmospheric geopotential: - include water vapor effect;
1581                                - use p^kappa in p* scaling.
1582    o land pkg: read initial state from files.
1583    o AIM : add stratospheric drag in the upper level
1584    
1585    checkpoint51d_post
1586    o change function ILNBLNK (=> last non-blank char.) to return zero
1587      (instead of the string length) when the string. char is empty
1588    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1589    o modif's to restore TAMC compatibility
1590      - avoid "_d" constructs in PARAMETER declarations
1591      - avoid interrupting lines by comment lines
1592    o Use cluster local disks for purely local I/O
1593      vs. globally visible disks needed for ctrl stuff
1594      (merged from ecco-branch)
1595      - new active_file_loc... and mdsio_..._loc routines
1596      - affected packages: autodiff, ctrl, grdchk, mdsio
1597    
1598    checkpoint51c_post
1599    o introducing integer flag debugLevel
1600      - debLevZero: suppress all output
1601      - debLevA: standard
1602      - debLevB: equivalent to current debugMode=.TRUE.
1603    o introducing pathname variable mdsioLocalDir for mdsio
1604      that can be specified at runtime
1605      (relevant for cluster I/O to local disk)
1606    `
1607    >>>checkpoint51b_post
1608    adjoint of ptracers
1609    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1610    o extended state in checkpoint_lev?, etc.
1611    o alternative ctrl/cost with tr1 or ptracer
1612    o new comlev1_bibj_ptracers
1613    o new ptracers.flow
1614    o made ptracers_forcing same as external_forcing_s
1615    o added verification for adjoint with ptracers
1616      - adm. grdchk fail so far
1617      - tlm. grdchk OK
1618      - checked tapelev/comlev recomputations: OK
1619    <<<checkpoint51b_pre
1620    
1621    checkpoint51a_post
1622    o added code for biogeochemistry package
1623      - new pkgs: dic, gchem
1624      - new subroutine in ptracers
1625    o modify code for biogeo packages
1626      - in model/src and pkg/ptracers
1627    
1628    checkpoint51
1629    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1630      - autodiff, ctrl, exf, grdchk, seaice
1631      kept separate packages
1632      - cost, ecco, obcs
1633    o updating verification/internal_wave, verification/lab_sea
1634      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1635    
1636    checkpoint50i_post
1637    o Preparing next differentiable checkpoint and sync
1638      of MAIN vs. ecco-branch
1639      - 1st step: this one is differentiable
1640      - 2nd step: next(! not this) checkpoint will have updated packages
1641                  from ecco-branch)
1642    
1643    checkpoint50h_post
1644    o new package "land": provide surface BC for AIM.
1645    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1646    o AIM: use true log-P extrapolation for near surface temp (= as in
1647        F.Molteni paper) ; update aim.5l_cs output.
1648    o New variable in PARM03 for more flexible pickups
1649    o somewhat cleaned package initialisation sequence for
1650      ctrl/ cost/ ecco/ in packages_... routines
1651    
1652    checkpoint50g_post
1653    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1654      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1655      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1656        made the default because of faster convergence than ADI
1657    
1658    checkpoint50f_post
1659    o exf totally restructured
1660      - replaced all exf_set_ routines by one generic exf_set_gen.F
1661        and made sure it's still differentiable
1662      - split exf_getffields.F into new exf_bulkformulae.F
1663      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1664      - updated adjoint/makefile and relevant verif. accordingly
1665    
1666    checkpoint50f_pre
1667     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1668          + change Evap over land. (update aim.5l_cs output)
1669     o added missing .cvsignores and made uniform across expts
1670     o changed configuration of tidal_basin_2d expt
1671     o added pkg/debug functions for tracing code in fatal crashes
1672     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1673     o new fn in pkg/monitor to stop model if solution grows too big
1674     o removed lots of single quotes from comments
1675    
1676    checkpoint50e_post
1677    o make KPP work with PTRACERS
1678     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1679       nearly a copy of kpp_transport_s
1680     - there is no analogue to SurfaceTendencyS, so I have to use
1681       gPtr(of the surface layer) instead
1682    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1683    checkpoint50e_pre
1684    
1685    checkpoint50d_post
1686    o change kpp output from multiple-record state files to single-record state
1687      files analogous to write_state.F
1688    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1689      analogous to the cg2d-related output.
1690    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1691      so that writing to internal file fn (with length 512) fails.
1692    checkpoint50d_pre
1693    
1694    checkpoint50c_post
1695    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1696    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1697    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1698    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1699    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1700    
1701    checkpoint50c_pre
1702    Merging from release1_p13:
1703    o bug fix for pkg/seaice dynamic solver
1704    o Added SEAICE_initialHEFF to pkg/seaice
1705    
1706    checkpoint50b_post
1707    o store u*,v* in gU,V instead of in guNm1,gvNm1
1708    o in order to put the momForcing out of the Adams-Bashforth:
1709      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1710      to timestep.F
1711    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1712    o re-generate output for highly sensitive test-exp:
1713       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1714    
1715    checkpoint50b_pre
1716    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1717    o corrected CPP option mismatch in exf_Bulk... functions for case
1718      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1719    
1720    checkpoint50a_post
1721    o Bug fix for merging between c50 and KPP.
1722      ikey was passed from thermodynamics to kpp_calc via
1723      common block rather than being recomputed in kpp_calc,
1724      in contradiction with new key itdkey.
1725      New key ikppkey created, and tamc.h headers updated.
1726    
1727    checkpoint50
1728    - 2nd step of merge with ecco-branch:
1729      merge changes in ecco-branch back into main trunk
1730    - bug fix in find_alpha
1731    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1732    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1733    - merged some sliced AD support routines
1734    
1735    checkpoint49
1736    merged from ecco-branch:
1737    o exf:
1738      - Enable initialisation of forcing fields to constant
1739        (runtime) values.
1740      - in exf_getffields.F
1741        Reduce i-/j-loop to interior domain, discarding overlaps.
1742        That also fixes wrong TAF-key computations for key_1, key_2
1743        with bulf formulae.
1744      - exf_init.F modify #ifdef for exf_init_evap
1745      - exf_getffieldrec.F, ctrl_getrec.F
1746        The following INT-usages are not safe:
1747          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1748          fldcount = int(fldsecs/fldperiod) + 1
1749        and were modified.
1750    o autodiff: checkpoint_lev...
1751      - updated storing for bulk formulae (some arrays were missing)
1752      - added state for seaice package
1753      - synchronized with main branch
1754    o DIVA:
1755      Modif.s in
1756      - the_main_loop.F
1757      - the_model_main.F
1758      and added cost_final_restore.F cost_final_store.F
1759      o With these changes, it is possible to fully separate
1760        the first forward run to compute the cost function (mdthe_main_loop)
1761        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1762        into separate model executions.
1763        This enables better tuning of DIVA to given queue sizes.
1764      o Loss of cost function value in consecutive DIVA runs is
1765        fixed by storing to 'costfinal' file.
1766      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1767        beginning/end of adjoint integration is accounted for.
1768      The current changes apply to TAF-1.4.26.
1769      TAF has one remaining bug, requiring one manual change
1770      (see MITgcm manual).
1771    o cal: synchronized between MAIN and ecco-branch
1772    
1773    checkpoint48i_post
1774    o Changes to restore differentiability of code w.r.t. previous tag
1775      (mostly adding new routines to make list and replacing
1776      pressure by totPhiHyd).
1777    o Updated and merged grdchk package
1778      - has both ADM and TLM checks
1779      - works for single- and multi-proc.
1780      - output cleaned
1781      - worked successfully for parallel DIVA
1782    o genmake:
1783      - Adding -platform=SP4
1784      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1785    o Modif. for DIVA:
1786      ctrl_unpack should not be called in intermediate DIVA interval.
1787      (similar thing would apply for active files such as
1788      tbar, sbar, psbar, which should not be reinitialised;
1789      only relevant for ecco-branch)
1790    
1791    checkpoint48h_post
1792    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1793    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1794    o Added SEAICE_initialHEFF to pkg/seaice
1795    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1796    
1797    checkpoint48g_post
1798    --- EOS:
1799    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1800      store total Potential in totPhyHyd for diagnostics & EOS.
1801    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1802    --- Pressure/geopotential gradient:
1803    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1804    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1805      ( changes results of global_ocean_pressure )
1806    o NLFS + z-coord.: add eta*Rho' contribution.
1807    o accurate phiHyd when using interface-W at the middle between 2 centers
1808     ( changes results of ideal_2D_oce )
1809    o includes r* 2nd term in potential gradient.
1810    
1811    checkpoint48f_post
1812    Merging from release1_p12:
1813    o Modifications for using pkg/exf with pkg/seaice
1814      - improved description of the various forcing configurations
1815      - added basic radiation bulk formulae to pkg/exf
1816      - units/sign fix for evap computation in exf_getffields.F
1817      - updated verification/global_with_exf/results/output.txt
1818    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1819      (SBO) core products, including oceanic mass, center-of-mass,
1820      angular, and bottom pressure (see pkg/sbo/README.sbo).
1821    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1822      to avoid negative values in shallow regions.
1823      - updated verification/natl_box/results/output.txt
1824      - updated verification/lab_sea/results/output.txt
1825    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1826    o Added useSingleCpuIO option (see PARAMS.h).
1827    o Updated useSingleCpuIO option in mdsio_writefield.F to
1828      work with multi-field files, e.g., for single-file pickup.
1829    o pkg/seaice:
1830      - bug fix in growth.F: QNET for no shortwave case
1831      - added HeffFile for specifying initial sea-ice thickness
1832      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1833    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1834      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1835    o pkg/seaice:
1836      - adjoint-friendly modifications
1837      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1838    
1839    checkpoint48e_post
1840    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1841    o dynamics: change definition of computational domain & adapt mom_fluxform
1842      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1843    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1844        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1845        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1846        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1847        inverted_barometer solid-body.cs-32x32x1
1848      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1849    
1850    checkpoint48d_post
1851    o in preparation for r*:
1852     a) use pre-computed gradient of hydrostatic potential:
1853        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1854     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1855        => affects results of glob_oce_pressure (different truncation error)  
1856      update output.txt of ideal_2D_oce & global_ocean_pressure
1857    
1858    checkpoint48d_pre
1859    o in preparation for r*:
1860      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1861      pass the 2 comp. of the grad. as arguments to momentum S/R.
1862      but for the moment, only used if it does not change the results.
1863    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1864    
1865    checkpoint48c_post
1866    Modifications in treatment of initial flux forcing controls
1867    to avoid extra storing of flux fields.
1868    
1869    checkpoint48c_pre
1870    o Added tidal_basin_2d experiment (currently 1D!)
1871    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1872    
1873    checkpoint48b_post
1874    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1875     (modification to pressure gradient not yet implemented)
1876    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1877      (for U & V) that are used for vertical advection of momentum.
1878    
1879    checkpoint48a_post
1880    o In preparation for r*, use temp. array to compute vertical transport
1881       in flux-form momentum pkg. => change results of few test-exp.
1882      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1883                        lab_sea, natl_box & plume_on_slope
1884    
1885    checkpoint48
1886    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1887    
1888    checkpoint47j_post
1889    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1890    o moved adexch from forward_step to addummy_in_stepping
1891    o added exch in ctrl_map_...
1892    o aveFreq.=0. at end of cost_final to avoid overwrite in
1893      reverse checkpointing loop
1894    o Yet more changes in gmredi:
1895      * adgmredi_calc_tensor
1896        avoiding all recomputation of gmredi_slope_limit
1897      * adgmredi_x/y/rtransport
1898        added flag for excessive storing to avoid recomp. of
1899        u/v/rtans, dTdx/y/z
1900        -> this is not really necessary and very memory-consuming
1901      * adgmredi_slope_psi:
1902        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1903      * gmredi_slope_limit
1904        re-activated full calculation of taperfct for case 'ac02'
1905    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1906    
1907    checkpoint47i_post
1908    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1909    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1910      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1911    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1912    o gmredi: fix few bugs.
1913    
1914    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1915    This will be a good checkpoint to plug into the ecco-branch.
1916    o few modif.'s to get latest version adjointed
1917      (mainly kick out code in ini_linear_phisurf)
1918    o modif's to run adjoint with exactConserv
1919    o case GM_BOLUS_ADVEC should be cleaned
1920      S/R gmredi_slope_psi should be cleaned
1921    o verification/carbon now has exactConserv=.TRUE.
1922    
1923    checkpoint47g_post
1924    o time-average AIM output: becomes independent from statvars time-average
1925      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1926    o After TAF bug fix:
1927      Tested adjoint of gmredi package.
1928      Tests were done with checkpoint47 rather than with latest
1929      checkpoint47f_post since the latter is broken for the adjoint
1930      verification/carbon/ contains both ADM and TLM gradient checks.
1931    Here they are, before they get changed/lost/stolen.
1932    Mostly modif.'s to fix numerical sensitivities.
1933    Gradient checks OK for
1934    - GM_taper_scheme:
1935      * clipping
1936      * ac02
1937      * linear
1938      * glw91
1939      * dm95
1940      * ldd97
1941    - GMREDI_OPTIONS:
1942      * GM_VISBECK_VARIABLE_K
1943      * GM_NON_UNITY_DIAGONAL
1944      * GM_EXTRA_DIAGONAL
1945      * GM_BOLUS_ADVEC
1946    in conjunction with data.gmredi parameters to be checked in
1947    in a few minutes under verification/carbon/code/
1948    
1949    checkpoint47f_post
1950    Merging from release1_p10:
1951    o modifications for using pkg/exf with pkg/seaice
1952      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1953        and SEAICE_EXTERNAL_FLUXES
1954      - pkg/exf CPP options EXF_READ_EVAP and
1955        EXF_NO_BULK_COMPUTATIONS
1956      - usage examples are Experiments 8 and 9 in
1957        verification/lab_sea/README
1958      - verification/lab_sea default experiment now uses
1959        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1960    
1961    checkpoint47e_post
1962    o created a tag prior to creating a branch
1963    
1964    checkpoint47d_post
1965    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1966      at the bottom boundary had an erroneous half slip boundary condition
1967    o added bottom drag and no slip boundary condition capabilities to
1968      oceanic pressure coordinates code
1969    o added new verification experiment global_ocean_pressure, this experiment is
1970      also described in the tutorial section of the manual
1971    checkpoint47d_pre
1972    
1973    checkpoint47c_post
1974    o Added a verification experiment for a global cubed-sphere ocean run
1975      -  verification/global_ocean.cubed32x32x30
1976      -  uses pkg/therm_seaice and pkg/bulk_forcing
1977    
1978    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1979    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1980      when using P-coordinate; only implemented for atmospheric config.
1981    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1982      NOTES: requires option NONLIN_FRSURF to be "#define".
1983    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1984    
1985    checkpoint47b_post
1986    Merging from release1_p9:
1987    o pkg/seaice
1988      - removed GOTO's and added taf directives
1989      - double precision constants to reduce the g77 (Linux)
1990        to F77 (SGI) differences reported in release1_p8
1991    o tools/genmake
1992      - added SGI options
1993    o verification/testscript
1994      - updated to that of checkpoint47a_post
1995    o verification/global_ocean.90x40x15/input/eedata
1996      - modified for SGI f77 compatibility
1997    o verification/lab_sea
1998      - added description of sea-ice model
1999      - added missing matlab routines
2000      - added test of thermodynamics parallelization
2001    
2002  checkpoint47a_post  checkpoint47a_post
2003  o new pkg: aim_v23  o new pkg: aim_v23
2004   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.

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