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revision 1.16 by cnh, Tue Nov 3 15:31:08 1998 UTC revision 1.629 by mlosch, Tue Mar 14 11:41:17 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o seaice: modify advection so that it works also on the C-grid
8    
9    checkpoint58b_post
10    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
11      update output.txt of exp. aim.5l_cs.thSI
12    o various mnc cleanups and improvements:
13      + shrink lookup tables by factor of ~4
14      + better error reporting when running out of lookup space
15      + able to handle longer path/file names (up to 500 chars)
16    o adjoint:
17      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
18      - TBD: "hidden" mom_vecinv recomp. in dynamics
19    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
20     (allow to differentiate between forcing components using new integer flags:
21      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
22     and add new flag to put Dissipation tendency out of Adams-Bashforth.
23    o ecco
24      - enable trend removal from SSH anomaly obs.
25    o adjoint
26      - a fix for PmEpR when #undef EXACT_CONSERV
27      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
28      - try to fix "hidden" recomp. in forward_step for NLFS
29        (NLFS seems broken sometimes after I checked it in)
30    o seaice:
31     - add c-grid version of the dynamic solver:
32       + three new routines that are the c-grid substitute lsr, dynsolver
33         and ostres
34       + put a few fields that were local to dynsolver into global common
35         blocks, so that I can move the computation of stresses etc into
36         seaice_lsr (saves coding but may break the adjoint).
37     - replace more hardwired parameters by runtime parameters
38     - add ice masks that mask the rhs of the implicit solvers where there
39       is no ice (commented out in seaice_dynsolver, because i am not sure
40       if this works properly), eventually this should replace the clipping
41       of ice velocities in seaice_dynsolver to +/-40cm/s.
42    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
43      include it only where its needed
44    o move balancing of fluxes before the call of external_forcing_surf
45    o seaice:
46      - correct units of turning angles (now they are really in degrees)
47      - move computation of GWATX/Y out of main routine into dynsolver
48      - initialize GWATX/Y in seaice_init
49    o Apply mask on Fresh-Water flux (needed for SSH forcing).
50      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
51    o seaice: add runtime flags for turning angles (default to zero)
52    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
53      and trend from exf forcing and ctrl control adjustments
54    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
55      (since checkpoint57x_post)
56    o change the default rotation period to 86164.s = the Earth rotation
57    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
58      and based on a reference stratification. Tested within hs94.cs-32x32x5.
59    o seaice advection: add code for choosing between the default (2nd order
60      central differences) and multiDim advection schemes provided by
61      pkg/generic_advdiff
62    o seaice:
63      - removed all references to SEAICE_GRID.h fields from
64        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
65        (cubed-sphere configuration will change a little)
66      - grid computations in seaice_init are obsolete now.
67      - cleaned up code a little so that is easier to read (hopefully).
68      - added new (better?) discretizations of default advection and diffusion
69        (turn on with SEAICEuseFluxForm)
70      - replace 1 in 3d global fields by kSurface in growth.F
71      
72    checkpoint58a_post
73    o seaice:
74      - bug fix in advect.F
75    o shelfice:
76      - separate shelfice load anomaly from pload (breaks with time
77        dependent forcing), => introduce constant field shelficeLoadAnomaly.
78        Its default is 0., but it may be computed more cleverly from (unknown)
79        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
80        done offline. A good approximation of the pressure load anomaly is
81        necessary to avoid large initial adjustment processes underneath
82        deep-reaching shelfice.
83      - small fix in ISOMIP shelfice_thermodynamics
84      - add more sophisticated thermodynamics of Hellmer (1989), this is
85        now the default
86      - give a few constants more intuitive names
87    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
88      if bulk formulae are used in long integration (especially EmPmR). Turn
89      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
90      if balancePrintMean, the imbalance that is substracted is printed to
91      STDOUT.
92    o fix bug (typo) in obcs_apply_eta.F
93    o add a new package shelfice which enables us to model the circulation
94      underneath shelf-ice with draughts of hundreds of meters.
95     - works
96     - to do: + include improved thermodynamics
97              + check whether kSurfC (from model/inc/SURFACE.h) can be used
98                instead of new field kTopC
99              + can we use topoFile, Ro_surf and existing code in ini_depth.F
100                instead of new field R_shelfIce and new code in ini_depth.F
101                and ini_mask_etc.F?
102              + adjust vertical mixing schemes?
103    o seaice pkg:
104     - add a cpp-flag to include a simple formula for a salinity dependent
105       freezing point of sea water at the surface
106     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
107       meridional stresses are now different (and hopefully correct)
108    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
109       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
110       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
111    o pkg/diagnostics: add options and parameters for regional-statistics
112       diagnostics ; define regions by reading a region-mask from a file
113       (might add other options later)
114    o pkg/bulk_force:
115     - add option and parameters to use AIM surface-flux formulae.
116     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
117       others forcing fields (defined in PARM05, parameter file "data") are loaded
118       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
119     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
120     - use the right EXCH call for uwind,vwind (to work on CS-grid).
121     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
122       and parameters (note: calcWindStress replaces .NOT.readwindstress).
123     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
124    
125    checkpoint58
126    o add "--embed-source" option to genmake2 which, when the supporting
127      tools can be compiled (as determined by genmake2) will turn on the
128      embed_files package which then embeds the entire MITgcm source code
129      (*.[fFhc] + Makefile) used for the build within the executable
130      - requested by CNH but off by default
131      - adds a paltry <9MB to the mitgcmuv executable in most cases
132      - only writes the output when useEMBEDSRC in eedata is true
133    o clean up 3-dim. relaxation codes:
134      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
135      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
136      * Thanks to Tom Haine for testing!
137    
138    checkpoint57z_post
139    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
140      affects output (@ truncation level) of exp. plume_on_slope ; updated.
141    o fix the pickup behavior for obcs in combination with ptracers
142    o fix a bug in ptracers_external_fields_load
143    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
144      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
145    o transfered surface NH pressure to eta field (if exactConserv).
146    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
147         and update lab_sea output.txt file.
148    o completing 3-dim. relaxation code: additional term
149         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
150      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
151      * At compile time, in "EXF_OPTIONS.h" set
152          #define  ALLOW_CLIMTEMP_RELAXATION
153          #define  ALLOW_CLIMSALT_RELAXATION
154      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
155          tauThetaClimRelax3Dim = 15552000.0,
156          tauSaltClimRelax3Dim  = 15552000.0,
157      * 3 cases:
158          1) Use a constant-in-time 3-dim. field
159          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
160          3) Real-time relax. to time-evolving prescribed field
161    o Adding Laplacian-type smoothness constraint on
162      initial and boundary (forcing) controls (ic, bc)
163      * enable at compile-time via
164        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
165      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
166      * Absolute scale somewhat unclear so far
167      * no area weighting was included since no other cost term does so far
168    
169    checkpoint57y_post
170    First step for a NLFS adjoint
171    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
172    o new init. routines for calc_r_star, calc_surf_dr
173    o still need to deal with ini_masks_etc
174    o testreport seemed happy
175    checkpoint57y_pre
176    
177    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
178    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
179    o add new offset feature to offline pkg (plus minor cleanup)
180    o cfc fixes for final year of integration
181    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
182      be in GCHEM_OPTIONS).
183    
184    checkpoint57x_post
185    o fix testreport Pb in multiple test experiment.
186    o cleanup our namelist syntax in verification:
187      - make it more F95 standards compliant (some work still needed)
188      - allows the vast majority of our tests to work with gfortran
189    o Non-Hydrostatic:
190     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
191     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
192    o Allow to apply AB on T,S rather than on AB(gT,gS):
193     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
194     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
195       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
196     - need a "clever" read_pickup to restart from the other AB formulation
197    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
198    o remove some unused variables (reduces number of compiler warnings)
199    o adjoint
200      * Disable useVariableViscosity for adjoint for time being
201        (there are a number of extensive recomputations)
202      * Initialize certain variables needed for adjoint
203    
204    checkpoint57w_post
205    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
206                 fix the singleCpuIO RS version of MDSWRITEFIELD
207       and add a WARNING if using globalFiles=T with multi-processors.
208    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
209      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
210    o tracer advection scheme:
211      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
212       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
213       was not very convenient).
214      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
215       (further tests needed for the implicit DST & Flux-Limiter schemes).
216    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
217      and sRef for convenience, handy, when you want to initialize
218      ptracers in a large domain with a constant non-zero value. Also,
219      untangle ptracers_init.F a little.
220    
221    checkpoint57v_post
222    o change dome exp. to use variable viscosity in side-drag terms.
223    o remove all the files from the cfc_offline test since they are now
224      incorporated into tutorial_cfc_offline which has been producing
225      identical results for a few days of testing
226    o add new parameter: sideDragFactor to enable half-slip-side BC
227      and change side-drag S/R to use viscosity from mom_calc_visc
228      (can switch back by setting sideDragFactor=0.); affects results at
229      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
230       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
231    o vorticity & strain are now computed without masking, to account for
232      no-slip-side BC in variable viscosity calculation ; mask is applied
233      anyway later on, before computing advection/coriolis terms.
234    o modify exp4 to test new obcs support for reading from external files
235      and for passive tracers
236    o fix behavior of ptracers_monitor when monitor output is written to a
237      netcdf-file; still not independent of monitor.F (writes in the same
238      file).
239    o change default value of tRef (put a uniform, meaningful value for ocean
240      & atmos) and initialize sRef (was missing, as Martin mentioned).
241    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
242      to be proportional to enstrophy dissipation length.  Thus,
243       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
244      This is now consistent with Smagorinsky and with the manual.
245    
246    checkpoint57u_post
247    o OBCS and PTRACERS: add open boundary support for passive tracers
248      - either use homogenous (pseudo) v.Neumann conditions or prescribe
249        OB-values from file; this is not different from the way theta and salinity
250        are treated
251      - however, Orlanski-radiation conditions are not supported, and the model
252        will stop if you use pTracers and Orlanski at the same time.
253      - beefed up the rountine obcs_external_fields_load: now only those open
254        boundary values are overwritten with values from files for which there
255        are really files, otherwise the OB-fields remain untouched. This makes
256        it possible to use different OBs at different ends of the domain (as
257        with EXF)
258    o reduce number of exch calls in shap_filt (s2).
259    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
260      truncation level) 4/5 MLAdjust test results (11&12 digits match).
261    
262    checkpoint57t_post
263    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
264    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
265      same truncation, independent of the face number: affects affects several
266      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
267    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
268      note that biharmonic viscosity + no-slip was not tested in any experiment.
269    o fix bug in non-linear free-surf side-drag ; generate new output for
270      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
271    o make mnc honor the writeBinaryPrec flag for most kinds of output
272    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
273    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
274      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
275    o add brackets in multi-terms sum to get same truncation, independent of
276      the face number (manage to get exactly same value of gU,gV at the cs-edge)
277      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
278    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
279      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
280      a maximum grid-scale Reynolds number.  Also, changes all length calculations
281      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
282      Suggested values of viscosity parameters found in mom_calc_visc.
283      Many new viscosity diagnostics available.
284    
285    checkpoint57s_post
286    o Add clearing-house for viscosity calculations, mom_calc_visc and
287      correct numerous bugs in LeithD and Smagorinsky discretizations.  
288      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
289      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
290      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
291      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
292      The Strain-Tension form is now called with useStrainTensonVisc=.true.
293      ViscAhStrain and viscAhTension are now retired.
294    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
295    o In response to JMC's bug report, genmake2 now ignores any soft-links
296      that it finds in the *current* directory when searching for files.
297      Soft-links found in any other source directories will still work as
298      they did before.
299    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
300      a C routine to unlimit the stack size
301    o mnc-ify pkg/aim snapshot vars
302    o mnc-ify pkg/land as requested by Daniel
303    o various changes to mnc including:
304      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
305      - output can now be grouped so that all files within a group
306          change the ITER portion of their names in lock-step together
307      - can now read ("global") PER-FACE (in addition to PER-TILE) files
308          and works with both EXCH1 and EXCH2 (but needs more testing)
309      - writing works for all verification test cases w/ g77 on Linux
310    
311    checkpoint57r_post
312    o make MNC variable initialization happen earlier
313    o add diagnostics for (almost) each term of the momentum Eq.
314    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
315    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
316    o remove MINIMAL_TAVE_OUTPUT option ;
317      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
318    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
319      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
320    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
321    o add time-dependent SST, SSS control
322    o cost terms in ecco/ modularized (new cost_generic.F)
323    o cost_averages routines are modularized (new cost_averagesgeneric.F)
324    o new infrastructure for seaice model vs. obs misfits in seaice/
325      * driver from the_main_loop.F is seaice_cost_driver.F
326      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
327      * gradient check in Exp. 6a of natl_box_adjoint/
328    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
329      (see README file)
330    
331    checkpoint57q_post
332    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
333    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
334      - bug was reported by Jean-Michel and Ian Fenty
335    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
336      update exp. cpl_aim+ocn output.
337    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
338      Needed for high-res. runs with large global files
339      to be able to limit tapelev size
340    o Changed some tests for adjoint:
341      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
342      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
343      * global_ocean.90x40x15/ back to default 3-level checkpointing
344    o Modifications to enable scripted COMMON to MODULE conversion
345      * verification/OpenAD/code/ has necessary scripts and description;
346      * converts, compiles and runs successfully;
347    
348    checkpoint57p_post
349    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
350    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
351      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
352    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
353    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
354      (was already the case for dissipation with mom_vecinv,
355       and also the case for grad.PhiHyd when staggered-timeStep)
356      This will allow to put dissipation out-off the AB time-stepping.
357     Unfortunately, affects truncation error. Update output of exp. that "fails"
358      (cg2d matching number) and leave the others for later: front_relax(10),
359      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
360      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
361    
362    checkpoint57o_post
363    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
364      (2) its ready to be documented during the 20050801 DocFest
365    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
366      for ideal_2D_oce and lab_sea on linux_ia32_g77
367    o set to #undef CTRL_SET_OLD_MAXCVARS_30
368      in global1x1_tot/code_seaice_adj to access indices 32, 33
369      (worth another tag)
370    
371    checkpoint57n_post
372    o adding precip control xx_precip 32
373    o adding swflux control xx_swflux 33
374    o Replacing 10 forcing penalty cost routines by 1 generic.
375    o Implementing partitioning in time-mean and variable adjustment
376      for atmos. state.
377    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
378    o in natl_box_adjoint:
379      * updated exp 1 to 10
380        (but does not have time-mean vs. variable split results yet)
381    o updated global1x1/*_seaice_adj/
382      to incorporate latest changes
383    o enable useSingleCpuIO for mdsio vector routines
384      (applies in particular to tapelev I/O)
385    o removed inefficient K-loop in all active_file*control*.F
386    
387    checkpoint57m_post
388    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
389      and advect_cs (use EXCH-2 and standard cs-32 grid files).
390    o pkg/exch2: filling of face-corner halo regions is optional
391      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
392    
393    checkpoint57l_post
394     tag before updating tutorials (pre-release-2)
395    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
396       for output and interpolation of input fields onto model grid)
397    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
398       Affects results of exp. rotating_tank ; update output.txt.
399    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
400          and taking the square quantity and/or using a fraction-weight field.
401    o fix aim_diagnostics_init.F mate numbers.
402    o add mnc output capability to diagnostics/diagstat and update
403      our cvsignore files for the ACSII output generated
404    
405    checkpoint57k_post
406    o lab_sea now uses diagnostics package and provides a suite of
407      new EXF diagnostics output.
408    
409    checkpoint57j_post
410    o exf
411      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
412        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
413        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
414      * extended diagnostics output
415        - now includes all EXF variables
416        - hs, hl moved to common block
417        - separate S/R for diagnostics, called after ctrl vector is added
418        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
419        - EXFqnet contains true Qnet (i.e. includes qsw)
420      * updated verif. lab_sea, global_with_exf
421      * Rearranging hflux (exf_mapfields -> exf_getforcing)
422        to ensure that diagnostics sees a true EXFqnet
423    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
424    o diagnostics pkg: change pointers so that 1 diagnostic can be used
425      several times with different frequencies.
426    o mnc-ify the thsice package as requested by Daniel Enderton
427      - the monitor--MNC output needs work
428      - many attributes need to be added (most are currently blank)
429    o mnc-ify theaim_v23 package as requested by Daniel Enderton
430      - many attributes need to be added (most are currently blank)
431    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
432    o add Sadourny like discretization to the 4th.O vorticity advection scheme
433    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
434      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
435         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
436    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
437     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
438    
439    checkpoint57i_post
440    o Diagnostics package was changed: diagnostic allocation is now deactivated
441      by setting an empty file name in the namelist (used to be by setting 0 frequency)
442    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
443      add 1rst Order upwind vertical Shear.
444    o add a quick fix for A/B checkpointing in OFFLINE mode
445    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
446      end-run around the C/Fortran linking horror in eesup/src/timers.F
447    o added pkg/runclock: allows user to terminate run based on wall clock
448    o added non-hydrostatic scaling parameter: nh_am2
449    o pkg/my82: futile attempt to make results compiler-independent by adding
450      some "_d 0", etc. no effect.
451    o for mnc output, fill the 'T' coordinate var with myTime and create a
452      separate 'iter' variable for iteration count
453    o pkg/diagnostics:
454      add new capability: output of Global/Regional & per-level statistics ;
455      tested against monitor output (including land & thSIce) on various exp.
456    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
457    
458    checkpoint57h_done
459      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
460      data.diagnostics, data.gchem, data.ptracers) is done.
461    
462    o pkg/diagnostics: prepare for Global/Regional statistics.
463      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
464    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
465      and rename it: DIFFERENT_MULTIPLE
466    
467    checkpoint57h_post
468    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
469    o pkg/diagnostics: change output frequency, now in seconds (instead
470      of Nb of iterations). This requires to change data.diagnostics.
471    checkpoint57h_pre
472    
473    o in mnc, let the user create the output dir if both mnc_outdir_date
474      and mnc_outdir_num are false
475    o add fflags() to pkg/diagnostics which allows one to specify, on a
476      per-file basis, the file precision [default behavior is unchanged]
477    o added diagnostics to pkg/kpp, including computation of mixed layer
478      depth based on a temperature/density criterion
479    o updated verification/natl_box to test the new pkg/kpp diagnostics
480    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
481    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
482    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
483      not mnc -- this mistake was found by JMC and is now corrected
484    
485    checkpoint57g_post
486    o add Adams-Bashforth 3rd Order time stepping:
487      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
488      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
489    checkpoint57g_pre
490    
491    o make lambda[Theta,Salt]ClimRelax spatially varying
492      (default remains spatially uniform constant based on tau)
493    o added new control variables
494      * init. uVel, vVel, etanN
495      * lambda[Theta,Salt]ClimRelax
496    o separate masks used for ctrl_pack/unpack 'from write_grid' output
497      (suggested by G. Forget)
498    
499    checkpoint57f_post
500    o add parameter "baseTime" = model base time = time at iteration zero
501      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
502      account for baseTime shift
503    o move Coriolis arrays from PARAMS.h to GRID.h
504    checkpoint57f_pre
505    
506    o mnc-ifying the seaice package
507    o introduced an alternative length scale calculation for use in the limiting
508      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
509    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
510    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
511      as well as grad(vort3).  Made it compatible with both approximate form
512      for the cubed sphere and full form of these gradients.  Added flag
513      useFullLeith to select between approximate and full form.  
514    o add "d0" in getcon.F to reduce differences between compilers/platforms
515      update output.txt of exp. fizhi-gridalt-hs
516    o change port_rand funtion to allow to set the seed.
517    o fix obscure MNC bug involving conversion between reals and integers
518      - it caused no problems with certain (eg. gcc, ifc) compilers but the
519        new version is now more standards-compliant
520    o adjoint-related modifications
521      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
522      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
523      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
524    
525    checkpoint57e_post
526    o Adding eddy stress controls a la Ferreira et al.
527    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
528    
529    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
530      update output.txt of exp. fizhi-gridalt-hs
531    o add more "Z" dimensions and associated coordinate vars to MNC
532    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
533    o parameter calendarDumps: when set, approximate months (30-31 days) and years
534      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
535      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
536      months and years.  Requires pkg/cal.
537    o diagnostics: add pickup functionality
538      - off by default for backwards compatibility
539      - current version only uses MDSIO -- MNC will be added
540    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
541    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
542    
543    checkpoint57d_post
544    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
545    o modify verification/ideal_2D_oce so that it tests the creation of mnc
546      output from the diagnostics package
547    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
548    o make genmake2 more portable by using ".$FS" instead of ".f" for more
549      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
550    o add coordinate variables to the MNC output from the diagnostics package
551    o change MNC-flags default value: true when useMNC=TRUE
552    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
553      the ability (off by default) to read the grid information using MNC
554    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
555    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
556    o do snap-shot diagnostics at the middle of the time-interval (instead of
557      at the end).
558    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
559      new test for AIM with thSIce + slab-ocean
560    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
561    o move state variable diagnostics to the beginning of the time step ;
562      (note: still needs some work specially for snap-shot diagnostics)
563      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
564    
565    checkpoint57c_post
566    o Change testing option (-ieee) to get closer agreement between g77 & ifort
567    o generate new output.txt files on faulks with g77 & the new -ieee option
568    checkpoint57c_pre
569    
570    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
571      update output.txt of exp. global_ocean.90x40x15
572    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
573      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
574    o add saltFlux(+File) forcing capability with periodicExternalForcing
575    o allow to use pkg diagnostics for GM-Redi & ThSIce output
576    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
577    o improvements for the MNC output from DIAGNOSTICS:
578      - correct handling of the unlimitied dimension
579      - all dims now have associated coordinate variables
580      - variables located at U, V, and Corner ("Z") points are now written
581        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
582        *all* data points are output
583    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
584    o added pkg/seaice/seaice_monitor.F
585    o mdsio_readfield.F can now read files visible only to master MPI process.
586    o pkg/seaice: some test code for ice-modified ocean stress
587    o exf_getffields interpolation defaults to bilinear for all scalar forcing
588      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
589      spurious negative numbers for precipitation and humidity.  Will cause
590      some small numerical differences for integrations using pkg/exf/exf_interp.F.
591    o pkg/ctrl/
592      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
593        May be enabled via doPackDiag
594      *  introduce z-scaling of
595         + gradient (doZscalePack) and
596         + control (doZscaleUnpack)
597    o pkg/mdsio/
598      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
599      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
600    
601    checkpoint57b_post
602    o simplify options in diagnostics_fill arguments (remove weird combinations)
603    o fix MNC coordinate variables so that they now contain per-face index
604      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
605      general, EXCH2 grids are only aligned to a "local" coordinate system
606    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
607    o Implement instantaneous output within pkg diagnostics:
608      setting a negative frequency in data.diagnostics produces
609     "snap-shot" output (as opposed to time-average if freq > 0)
610    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
611      NOTE: change ptracer diagnostics name: use 2 characters to work with
612            more than 9 tracers. Add also diagnostics of advect & diffus flux.
613    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
614      becomes the coordinate variable for the 'T' dimension
615    o add CF-style coordinate variables to MNC
616      - just a first cut:  numbers are meaningless on the cubesphere and
617        missing along the T axis but otherwise it works!
618    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
619    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
620    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
621      this is based directly on what the model compute, so that the content of
622      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
623    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
624    o clean up build options files for SunOS, in particular
625      - remove -traditional from xmakedepend
626      - change -xarch=v9 to -xarch=native for f77
627      - restore use of make (not gmake)
628      - add CC=gcc if using g77
629    o changes per discussion of AM, JMC, & EH3 today:
630      - move redundant "grid" variables out of "state" -- in preparation of
631        creating proper CF-style coordinate variables and in recognition
632        that any/all grid variables can be easily copied (eg. w/NCO) from
633        the grid files into any of the other NetCDF files
634      - *always* output grid variables with MDSIO (this will eventually be
635        changed)
636      - output MNC grid file if useMNC is true
637    o every instance of _END_MASTER() has been found and replaced with
638      _END_MASTER( myThid ) in order to satisfy certain picky Sun
639      preprocessors
640    o re-arrange diagnostics pkg initialisation:
641     - allow each package to extend the available diagnostics list
642     - add some checking and fix small problems (multi-threaded, ...)
643     - new S/R diagnostics_fill (replace fill_diagnostics):
644       look through the short list of active diag. (instead of the long list)
645       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
646    
647    checkpoint57a_post
648    o this set of changes restores TAMC compatibility
649      tested for global_ocean.90x40x15 adjoint on trough
650      (what a pain)
651    
652    checkpoint57a_pre
653    o some modifs in tools/build_options for sunos
654    o call ctrl_pack for ctrl at end for optimcycle=0
655    
656    checkpoint57
657    o add horizontal bi-harmonic viscosity for vertical velocity
658      - new parameter viscA4W (defaults to viscA4)
659      - affects only non-hydrostatic code
660      - to be done: no-slip lateral boundary conditions
661    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
662    o implement Implicit Vertical advection for pTracers
663    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
664      (implemented also for implicit vertical diffusion & advection)
665    o OBCS: extend application of tracer open boundary conditions
666      to a strip beyond the boundary of width Olx/Oly
667    o add call monitor to TAF set of required calls (flow directives)
668      and include in natl_box_adjoint
669    o untangle a few ifdefs related to cost, ctrl, autodiff
670      untangel a few ALLOW_ECCO_OPTIMIZATION
671    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
672      (theta2, salt2 in ecco_cost_weights)
673    
674    checkpoint56c_post
675    o OBCS as control variables
676      - update ctrl_ad_diff.list, obcs_ad_diff.list
677      - remove balance of obcs controls from default
678      - fix index bug nobcs in ctrl_init
679      - fix dummy fields filen in ctrl_pack
680      - add dummy weights for obcs
681    o lsopt: comment out fort.94 output
682    o optim:
683      - remove unnecessary header files
684      - adjusted namelists
685      - add xerbla.F to Makefile
686    o exf:
687      - multiple modifications of exf_check_range
688      - unit change in exf_init_runoff from [m/year] to [m/s]
689    o mdsio:
690      - i/o-vector change debugLevel from debLevA to debLevB
691    
692    checkpoint56b_post
693    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
694      is called from DO_THE_MODEL_IO
695      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
696      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
697      - clean up PTRACERS_WRITE_TIMEAVE a little
698    o add another verification experiment that tests both the cfc-pkg and
699      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
700      reactive tendencies treated inline with regular timestepping
701    o testreport previously did a lousy job of comparing small numbers, so
702      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
703      implemented in the little c-progam tmp_cmpnum.c which is embedded in
704      testreport.
705    o ptracers_monitor: bug fix for MPI
706    
707    checkpoint56a_post
708    o GCHEM: finish reorganizating the package
709      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
710        (introduces another 3D-array for each passive tracer, but only if
711        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
712        gchemTendency is not needed because the timestep is done separately)
713      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
714      - GCHEM is now---more or less cleanly---separate from PTRACERS
715      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
716        so clear to me how that should be done in a general way.
717    o CFC: improve formatting of output in CFC_ATMOS
718    o PTRACERS:
719      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
720        that ALL experiments with ptracers enable can be checked. This makes
721        GCHEM_MONITOR obsolete.
722      - include a runtime parameter PTRACERS_monitorFreq that defaults to
723        monitorFreq
724      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
725    o add PTRACERS (PTR0[1-5]) to testreport output
726    o exf_check_range:
727      * default changed to .TRUE.
728      * will check values for niter0 if debLevA, every timestep if debLevB
729      * STOP in exf_check_range if 'out of range'
730      * range chosen generous to allow for potential extema
731      TBD: a version with stricter range
732           permitted range would be runtime parameters
733    o GMredi:
734      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
735      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
736      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
737    o GCHEM:
738      - move call to GCHEM_FORCING_SEP, so that it is now called before
739        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
740      - introduced a useGCHEM runtime flag and applied it everywhere.
741      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
742        this flag is now only visible within GCHEM-pkg routines.
743      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
744        be replaced by a 3D array that is computed before thermodynamics; for
745        this, the tracer ID iTracer had to be included into the parameter list
746        of ptracers_forcing
747      - set up forward_step to call gchem_forcing, that will replace
748        gchem_forcing_int in ptracers_forcing
749      - cleaning up
750    o small cleaning of exch2: remove files that are also in eesupp/src
751    
752    checkpoint56
753    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
754    o mnc: cleanup "full" files--fixes out-of-memory problem
755    o ECCO-GODAE
756      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
757      * fully merged and updated from SIO code
758        windstress sign change affects
759        - exf_inscal_[u/v]stress
760        - sign of xx_tau[u/v] adjustments
761        - signs in cost_scat
762      * ctrl_get_gen: avoid update of tau[u/v] for first few days
763      * natl_box_adjoint updated and compressed
764      * 2-level checkpoint switch added
765        (tested in EXP. 1 of natl_box_adjoint)
766      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
767    o SVD
768      * first complete, non-hacked version for SVD calculations
769      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
770        performed via direct access files admtlm_vector.it????
771        (via ctrl_[un]pack)
772      * optimcycle is used for ARPACK iteration counter
773        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
774      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
775        and add linear transforms where necessary
776      * controls are initial/final SST, SSS (can be extended; need to check
777        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
778    o mdsio: filename info to both stderr, stdout
779    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
780      from sign change
781    
782    checkpoint55j_post
783    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
784      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
785    o add consistent build directories and .cvsignore files to verification
786    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
787    o make all subroutines 30 or less characters in length for certain older
788      compilers to work (a thorough search only turns up two routines in
789      pkg/ptracers)
790    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
791      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
792    
793    checkpoint55i_post
794    o change arrays for total vertical diffusivity (2.D if explicit,
795      3.D if implicit) ; each ptracer uses its own background value.
796    o added mnc/NetCDF output capability to ocn_compon_interf
797      - added bits to verification/cpl_aim+ocn so that it can run on
798        ITRDA and other clusters without the mpirun "-wd" option
799    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
800      configuration
801    o give MNC the ability to create additional files rather than
802      exceeding a specified file size limit "MNC_MAX_FILESIZE"
803      - the default is just less than 2GB which is a practical limit
804        on many systems
805    o Compute the non-local term using either KPP vertical diffusivity (=default)
806       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
807    
808    checkpoint55h_post
809    o add verification test "vermix"
810    o remove all the *_ioinc flags and replace with the single global
811      outputTypesInclusive flag
812    o allow to set a vertical profile of vertical diffusivity for T & S
813    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
814    o useMNC moved from data.mnc to data.pkg
815    
816    checkpoint55g_post
817    o Renaming carbon AD experiments to comply with testreport conventions
818    o Updating adjoint of Held-Suarez hs94.1x64x5
819    o Fixing directives for non-ECCO forward_step, after ECCO directives
820      have been fixed to avoid recomp. of do_oceanic_phys
821      Works well for global_ocean.90x40x15,
822      but recomp. issue remains for carbon
823    o Updating adjoint output for natl_box_adjoint after
824      pkg/ecco has been modified (see taga c55d_post)
825    
826    checkpoint55f_post
827    o rename to timeave_init_fixed
828    
829    checkpoint55e_post
830    o some delicate re-shuffle of store directives to avoid one
831      extra call of do_oceanic_physics
832      affects ecco_the_main_loop.F, do_oceanic_physics.F
833      checkpoint_lev1_directives.h
834    o NB: this may break global_ocean adjoint temporarily,
835      but it is clear how to fix it. Will do later, need this now.
836    
837    checkpoint55d_post
838    o ECCO specific cost function terms (up-to-date with 1x1 runs)
839    o ecco_cost_weights is modified to 1x1 runs
840    o modifs to allow observations to be read in as
841      single file or yearly files
842    o enable to read exf forcing fields as either
843      single file or yearly files (flag useExfYearlyFields)
844    checkpoint55d_pre
845    
846    o switch between 2-level and 3-level checkpointing
847    o add ability of MNC to write local and "partial" (eg. 2D slices where
848      the full 3D field is never actually stored) arrays to NetCDF files
849      with the correct (that is, the complete multi-dimensional) set of
850      array indicies
851      - used in mom_vecinv() to write the diagFreq output
852      - tested (demonstrated) in verification/aim.5l_cs
853    o further mnc-ification
854      - add verification/lab_sea to the list with mnc setups
855      - fix undefined mnc v-names in cd_code
856      - add kpp to mnc output (both snapshot and timeave)
857    o non-hydrostatic code
858      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
859        in calc_gw.F
860      - defaults to viscAh
861      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
862        friction or Leith) in non-hydrostatic mode, as long as there is
863        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
864    o pkg/cost
865      extend simple cost functions to treat time mean quantities
866      (T,U,V) via cost_accumulate_state from cost_tile
867    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
868        be 2 times larger than the minimum size the advection scheme requires.
869        now get a perfect conservation of salt in advect_cs test-exp (updated)
870    o GGL90 (Gaspar's TKE mixed layer)
871      - add horizontal diffusion of TKE, requires exchanges in
872        do_fields_blocking_exchanges, horizontal diffusivity is zero by
873        default. In OPA there is no horizontal diffusion of TKE but the
874        mixing coefficients are computed from a horizontal average of TKE of
875        6 points or so. I think that diffusion has a little more physical
876        justification.
877      - clean up ggl90_calc in the hope of reducing memory usage (this hope
878        was in vain)
879      - mask tke-variable in ggl90_init
880    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
881    o fix biharmonic diffusion on CS-grid.
882    o more obcs stuff
883      - added obcs_external_fields_load as an alternative to the EXF-pkg option
884        for reading boundary values. This routine is called from
885        obcs_prescribe_read
886      - updated obcs_check
887      - changed sponge layer relaxation parameter units for days to seconds
888      - turned off sponge layer by default
889      - changed argument list of OBCS_CALC to myTime+deltaTclock
890      - fixed about 35 bugs in obcs_external_fields_load
891    
892    checkpoint55c_post
893    o obcs stuff
894      - new runtime flags useOBCSprescribe, useOBCSbalance
895      - re-arranged obcs_calc
896      - moved exf_getobcs to obcs_prescibe_read
897        obcs_prescibe_read is called after ORLANSKI stuff
898        and independent of it (executable can contain all).
899      - updated obcs_check
900      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
901        These may be necessary only if tangential velocities are
902        prescribed at OB, not sure, needs testing.
903    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
904      which simplifies the calls and passes the ifc check-bounds test
905    
906    checkpoint55b_post
907    o add a 2D scalar, Z location, exchange_2 routine.
908    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
909      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
910      affects advect_cs results (for the wrong reason): update output.txt
911    o use a more standard discretization for biharmonic viscosity ;
912     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
913      affects results of dome set-up: update output.txt
914    o fix gad_advection.F (CubedSphere part), back to version 1.23
915    o fix bug in mom_vi_del2uv.F (CubedSphere part).
916    
917    checkpoint55a_post
918    o merged code to
919      * prescribe/read time-dependent open boundaries
920        (works in conjunction with exf, cal)
921      * sponge layer code for open boundaries
922      * each boundary N/S/E/W now has its own CPP option
923        (healthy for the adjoint)
924    
925    checkpoint55
926    o up-to-date adjoint of previous breaks
927      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
928      - global_ocean_ebm: adjoint still needs fix (TLM ok)
929      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
930      - carbon: * remove tr1-related adjoint verification
931                * add ptracer as control variable
932    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
933      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
934    
935    checkpoint54f_post
936    o in verification/carbin/ remove experiment related to
937      ALLOW_PASSIVE_TRACER (array tr1 etc)
938      code_ad/ input_ad/ results_ad
939    
940    o add two new packages
941      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
942        + subject to optimization (memory)
943      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
944        + subject to reordering (many GOTOs in the original code)
945        + so far opps is called for every (i,j) point, and then operates in
946          the vertical; one may want to reorder the scheme in order operate in
947          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
948          fields)
949    o overhaul of IO so that we now have flags for MDSIO and/or MNC
950      - all verification tests compile and run with linux_ia32_g77
951      - defaults are compatible with current input files--nothing
952        should change if you were not previously using MNC
953      - MNC output has been added in numerous places (eg. timeave)
954        but there are still a few writes not yet do-able with MNC
955        (this is in progress)
956      - flags now allow for either/or/both use of MDSIO and MNC and
957        documentation will soon follow
958      - numerous small formatting cleanups for ProTeX
959    o add version info (via BUILD_INFO.h) to MNC and stdout
960    
961    checkpoint54e_post
962    o add two new packages
963      - pp81 (Packanowski and Philander, 1981), Richardson number and
964        stratification dependent mixing
965      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
966      - these scheme operate in a similar manner as KPP (without ghat, of
967        course), however there is only one diffusivity that is used for both
968        temperature and salinity (and passive tracers)ç
969    o add offline package
970    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
971      provided by Stephanie Dutkiewicz
972    o genmake2: add ability to search for C compilers and cleanup test output
973      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
974    
975    checkpoint54d_post
976    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
977    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
978      leading to additional shift by 5 days each year of integration
979       (i.e. leading to considerable offset over the years)
980    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
981    o start with no AB and no initial filtering (staggerTimeStep):
982      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
983    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
984      (external loading & cpl import/export stay in forward_step.F)
985    o update coupling interface to work with new staggerTimeStep
986    o change MDSIO ptracers_pickup.
987    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
988    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
989    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
990    
991    checkpoint54c_post
992    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
993      this affects (truncation error) output.txt of test-exp:
994       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
995    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
996    o change Qnet to always be the net heat flux, (+upward).
997      affects (truncation error) output of natl_box exp.: updated
998    o define the max number of passive tracers in PTRACERS_SIZE.h
999    o start to test mnc routinely in exp0
1000    o add sea-ice loading (sIceLoad) as a new forcing field.
1001    
1002    checkpoint54b_post
1003    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1004       impressive on Altix and Opteron systems)
1005    o diagnostics can now write NetCDF files through the mnc package
1006    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1007    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1008    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1009      affects (truncation error) output of lab_sea & natl_box exp.: updated
1010    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1011    
1012    checkpoint54a_post
1013    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1014    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1015    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1016    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1017      + internal_wave (shift in writing cg2d_ini_res)
1018    checkpoint54a_pre
1019    
1020    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1021      - modified verification/lab_sea and natl_box_adjoint accordingly
1022    
1023    checkpoint54
1024    checkpoint53g_post
1025    o prepare splitting of thermodynamics: store convect.counter in common block
1026    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1027      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1028    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1029    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1030    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1031    o restore adjointability
1032    
1033    checkpoint53f_post
1034    o modifications that affect AIM experiment results (update output.txt):
1035      - no advection of S at top interface Nr (pkg/generic_advdiff)
1036      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1037    o AIM pkg:
1038      - include stability function into surf.Flux derivative relative to Tsurf
1039      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1040    
1041    checkpoint53e_post
1042    o merged cylindrical coord configuration
1043    o added rotating_tank experiment
1044    checkpoint53e_pre
1045    
1046    checkpoint53d_post
1047    o faulks upgraded: re-generate output.txt that have changed:
1048       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1049    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1050    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1051    o added Sadourny discretization of Coriolis
1052      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1053      - re-enabled use of omega3 (useAbsVorticity)
1054    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1055      vector-invariant equations
1056      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1057    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1058      hopefully without new bugs
1059      - still to do: biharmonic friction for non-hydrostatic w
1060    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1061    o regenerated output for global_ocean_ebm (using -ieee)
1062    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1063      of mom_common/
1064      - simple re-arrangement of instructions within computing loop
1065    checkpoint53d_pre
1066    
1067    checkpoint53c_post
1068    o new version of coupler for AIM+thSIce and Ocean models
1069     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1070     - land: change Evaporation of snow
1071     - aim with thSIce: fix bug in snow-precip.
1072    o changes to calc_gw.F
1073     - bug fix for w^2 term near the bottom boundary
1074     - (hopefully) improve the lateral slip boundary condtions for use with
1075        partial/looped cells
1076      - because the bug fix changes two verification experiments anyway (exp5
1077        and plume on slope), change the lateral boundary condition from half slip
1078        to the value of no_slip_sides
1079    o ebm package wasnt quite up to the parallel task. Fixed that.
1080    o Adjoint of EBM package + verification
1081      * TLM OK
1082      * ADM not sufficient accuracy yet (needs further testing)
1083    
1084    checkpoint53b_post
1085    o Commiting new energy balance model to repository
1086      * package is pkg/ebm
1087      * verif. is verification/global_ocean_ebm
1088      * references are in ebm_driver.F
1089    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1090    C        Global thermohaline circulation. Part I:
1091    C        Sensitivity to atmospheric moisture transport.
1092    C        J. Climate 12(1), 71-82
1093    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1094    C        Global thermohaline circulation. Part II:
1095    C        Sensitivity with interactive transport.
1096    C        J. Climate 12(1), 83-91
1097    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1098    C        Destabilization of the thermohaline circulation
1099    C        by atmospheric eddy transports.
1100    C        J. Climate 7(12), 1870-1882
1101    o Will need long integration testing.
1102    checkpoint53b_pre
1103    
1104    o created pkg/mom_common in preparation for variable viscosity code
1105    o renamed and split ini_mnc_io
1106    o pkg/land: only liquid water can diffuse or run-off
1107    o AIM using land: soil wetness availability account for snow
1108    o added printMapIncludesZeros to EEPARMS namelist
1109    
1110    checkpoint53a_post
1111    o restore TAMC compatiility for exf_constants.h
1112      (no usage of _d in .h)
1113    o Additional storing in KPP in an attempt to fix
1114      TAMC problem with adjoint of KPP code.
1115      (no success...)
1116      Identical code works fine with TAF.
1117    o Fixed verification/natl_box_adjoint experiments.
1118      Initial conditions for Experiments 4 and 5 are now
1119      set to "SEAICE_initialHEFF=0", which is more reasonable,
1120      and hence gives results closer to that of Experiment 2.
1121      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1122    
1123    checkpoint53
1124    o stable checkpoint with up to date adjoint
1125      TLM tests only run for 1st grdchk at the moment. Its unclear if
1126      this is a code problem or a problem with resetting code for g_
1127      variables that is being autogenerated wrong.
1128      Otherwise:
1129       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1130       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1131         are both still in chaos following their security messes.
1132    
1133    checkpoint52n_post
1134    o various build (mostly genmake2) changes including:
1135      - ability to build/run more easily within Cygwin and MacOS X
1136      - more complicated Makefiles with a stronger dependence on Gnu Make
1137    o pkg/seaice modifications
1138      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1139        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1140        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1141      - changed proxy for geostrophic velocity and updated
1142        verification/lab_sea/results/* accordingly
1143      - removed ADI dynamic solver from pkg/seaice
1144      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1145        they caused a segmentation fault under certain circumstances
1146      - removed unused field WATR
1147    o bug fix in exf-package:
1148      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1149         now reflect that.
1150    o small fixes in the cal-package:
1151      - set reference date to first of January for the 'model'-calendar
1152      - failing of cal_CheckDate in cal_FullDate now actually results in a
1153        warning
1154    o small modifications in exf-package to increase flexibility:
1155      - change climtempfreeze from a constant to a runtime parameter that
1156        is specified in data.exf_clim (default = -1.9)
1157      - introduce runtime parameter windstressmax (default = 2.0) that is
1158        specified in data.exf
1159    o fix in pkg/thsice:
1160      - update Evap (Tsf changes) to be consistent with Latent heat flux
1161      - maintain snow precipitation unchanged (even if Tsf >=0).
1162     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1163    
1164    checkpoint52m_post
1165    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1166      this does not change any of the results, because myIter=0 in swfrac always
1167      lead to jwtype=2 (the default anyway), but the call makes little sense
1168      as a default
1169    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1170    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1171      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1172    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1173    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1174    o extending useSingleCpuIO option to work with new exch2 I/O format
1175      - old-style, missing-tile I/O is still accessible by defining CPP
1176        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1177    o monitor package can write to NetCDF files and/or STDOUT
1178    o fix re-definition bug in MNC_GRID_INIT_ALL()
1179    o doc/api_reference added
1180      - a framework for building an API Reference Manual using all
1181        the "protex" comments embedded in the code
1182      - see pkg/generic_advdiff, pkg/mnc for examples
1183    o MNC:
1184      - make myThid the last argument for all subroutines
1185      - new default for the grid files: NO halos
1186      - add useMNC and other run-time flags
1187      - separate per-file-group handling of the unlimited dimension
1188      - early initialization of MNC w/ flags read at the eeboot stage
1189        and lookup tables set in initialize_fixed
1190      - write all MNC output to a freshly-created directory
1191    o thermodynamics sea-ice (thsice) is now tested with testreport.
1192    o test exp. advect_cs: use the standard cs32 grid ; update output.
1193    o Added functionality to grdchk:
1194      pick global i,j,k position (or nearest wet) where to perform check.
1195    
1196    checkpoint52l_post
1197    o new land formulation:
1198      a) use ground enthalpy as prognostic variable to ensure exact
1199         energy conservation.
1200      b) account for water temperature and for latent heat of freezing
1201         in all processes (rain, run-off, ground storage)
1202      c) compute surface and ground temperature implicitly.
1203    o aim_v23 modification for new land model:
1204      a) Treat separately land / ocean / sea-ice surface fluxes
1205         to allow implicit computation of land & sea-ice surface temp.
1206      b) add snow precipitation.
1207    checkpoint52l_pre
1208    
1209    o fix problem (when 1 tile is empty) in min/max monitor.
1210    o fix bug in timeAve (u,vZetatave in common block)
1211    o no restoring terms under ice for pkg/seaice
1212    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1213    o bug fix for pkg/seaice pickups
1214    o change MNC call locations and add coordinate attributes
1215    o mask vorticity at the corner ; affects global_ocean.cs output
1216    o fix ini_curvilinear_grid ; test CS experiments with mpi
1217    o aim.5l_cs: modify sea-ice fraction input file ; update output
1218    o exf: Adding simple range check routine for exf fields after read
1219    
1220    checkpoint52k_post
1221    o removed top-level directory "diags"
1222      - we migrated these functions to pkg/timeave a long time ago
1223    o fixed bug introduced in pkg/monitor
1224    o accuracy ctrlprec = 32 insuffient for gradient checks using
1225      averaged fields (I/O via cost_averages)
1226      -> use ctrl.h in active_file*.F to control I/O precision.
1227    o paramter list of CALL ADTHE_MAIN_LOOP
1228    o added initial do_the_model_io to ecco
1229    o set all ...Freq to zero after cost_final
1230      taveFreq, dumpFreq, pChkptFreq
1231    o MAIN and ECCO differentiability restored
1232    
1233    checkpoint52j_post
1234    o fix nchklev in tamc.h for global_ocean...
1235    o Bringing flow and store directives up-to-date
1236    o Really weird thing!
1237      call do_the_model_io from the_main_loop with parameters
1238      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1239      TAF places a faulty re-call of initialise_varia
1240      after cost_final call which should not be there!
1241    checkpoint52j_pre
1242    
1243    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1244      error messages
1245    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1246    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1247      debug output
1248    o modfied mdsio_writefield.F to handle non-global files under exch2
1249    o update AIM Cubed-Sphere exp (aim.5l_cs):
1250      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1251    o update AIM Equatorial Channel exp:
1252      use standard aim_v23 pkg and change the SST fields to be more realistic.
1253    o globalFile now works with exch2
1254    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1255      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1256    o limit timeave output for hi-res integrations
1257    
1258    checkpoint52i_post
1259    o removed CPP_EEOPTIONS.h from verification/*/code
1260    o updated the tiling for global_ocean_pressure
1261    checkpoint52i_pre
1262    
1263    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1264      the old pkg/aim).
1265    
1266    checkpoint52h_pre
1267    o shortened offending lines in exch2_send_rx?.template
1268    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1269    o genmake2: add build & execute test for NetCDF code
1270    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1271      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1272    o added useSingleCPUIO flag to monitor.F and mon_out.F
1273    o added temporary hack for sea-ice dynamics on the cube:
1274      metric terms are ignored and it is assumed that
1275      there is no sea-ice on cube faces 1, 2, 4, and 5.
1276    
1277    checkpoint52f_post
1278    o added exch2 cube routines to pkg/exch2
1279    o modified hs94.cs-32x32x5 to use it
1280    o added new grid files to hs94.cs-32x32x5
1281    checkpoint52f_pre
1282    
1283    checkpoint52e_post
1284    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1285      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1286    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1287      to work with implicit vertical advection and AB ;
1288    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1289    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1290     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1291    checkpoint52e_pre
1292    
1293    o fix bug in impldiff when Nr=1 or Nr=2.
1294    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1295    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1296    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1297      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1298    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1299    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1300    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1301    
1302    checkpoint52d_post
1303    o re-tiled many expts to allow comparison in multi-processor mode
1304      - updated output accordingly
1305      - changed hs94.128x64x5 to use intial T from file rather than use the
1306        random number generator
1307    o add infrastructure in model routines for fizhi and gridalt packages
1308    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1309    o changes to permit hi-res, cubed-sphere, configuration
1310      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1311      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1312      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1313        of surface winds for the cube
1314      (A verification experiment, based on global_ocean.cs32x15, but with
1315       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1316       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1317       complete with example surface forcing files and matlab scripts to look
1318       at the output and compare it with that of global_ocean.cs32x15.)
1319    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1320       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1321       to conform to the common rule.
1322    o check-in the first version of the coupler + interfaces for multi-components
1323       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1324       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1325       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1326       - ocean and atmos. share the same horizontal grid (no interpolation).
1327       - exchanges between component and coupler is done in forward_step
1328    o new verification experiment, cpl_aim+ocn:
1329       coupled ocean - AIM atmosphere on cs32 grid.
1330    
1331    checkpoint52d_pre
1332    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1333    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1334    
1335    checkpoint52c_post
1336    o Fixing OPTIONS files for use of exf:
1337      - ALLOW_ECCO not needed
1338      - ECCO_CPPOPTIONS.h should not be included from
1339        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1340        as has been the case in the past
1341      - All cal/exf related options are currently set in
1342        single header file. Should remain so until we
1343        agree on a consistent new policy.
1344    o Removed all CPP options for cal package.
1345      cal has no more CPP options.
1346    o modified STOREs in GAD_ADVECTION
1347    o corrected key comp. for passkey
1348    
1349    checkpoint52b_post
1350    o new version: "thsice" of thermodynamic sea-ice pkg:
1351     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1352     - modify fluxes but do not change theta directly;
1353     - light cleaning of bulk_force pkg (still needed with thsice).
1354     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1355       + output_thsice.txt to test thsice & bulk_force pkgs.
1356    o put back grid & coriolis monitor output.
1357    checkpoint52b_pre
1358    
1359    o call "do_the_model_io" at the beginning (=> dump initial state)
1360    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1361    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1362      (need info on NUMBER_OF_PTRACERS)
1363    o missing PTRACERS headers in some routines
1364    o default tamc.h in pkg/autodiff supposed to crash
1365      to ensure proper customization
1366    
1367    checkpoint52a_post
1368    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1369      - moved surfaceTendencyTice from pkg/seaice to main code
1370      - subroutine FREEZE_SURFACE now limits only surface temperature
1371        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1372        => new output.txt for global_ocean.cs32x15 & global_with_exf
1373      - keep the old version of FREEZE for backward compatibility;
1374        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1375      - corresponding modifs for TAF directives
1376    o added surface flux output variables to TIMEAVE_STATVARS
1377    o time-averaged output for pkg/ptracers
1378    o fix problem with ECCO-related divided adjoint
1379      snapshot file was missing some ad-variables,
1380      but no warning issued by TAF
1381    
1382    checkpoint52a_pre
1383    o some bug fixes for #undef REAL4_IS_SLOW
1384    
1385    checkpoint52 = ecco_c52_e35
1386    o after testing adjoints of checkpoint51u_post
1387    
1388    checkpoint51u_post
1389    o this is the post-merge tag of the ecco-branch
1390      (needs another clean checkout and re-testing)
1391    o various natl_box_adjoint configs and results
1392      but no input fields
1393    o obcs adjoint not yet merged!
1394    o adding ECCO global 1x1 and 2x2 degree configs
1395    o updated/extended some store directives for seaice
1396    o pkg/ecco now containes ecco-specific part of cost function
1397    o top level routines the_main_loop, forward_step
1398      supersede those in model/src/
1399      previous input data.cost now in data.ecco
1400      (new namelist ecco_cost_nml)
1401    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1402    
1403    checkpoint51t_post
1404    o this is the pre-merge tag of the ecco-branch
1405    
1406    checkpoint51s_post
1407    o cleanup: removed various obsolete #define-s
1408    o pkg/grdchk
1409      - renamed 'ph-grd 3' to 'grad-res'
1410      - merged from ecco-branch
1411        (remaining bug fixes for obcs gradient checks)
1412      - additional high-precision output for testreport
1413        (grep for 'precision_grdchk_result')
1414    
1415    checkpoint51r_post
1416    o cleaned up or removed CPP_OPTIONS.h files
1417    o updated results for some of the tests to reflect the new
1418      optfiles (-ieee: -O0 instead of -O3)
1419    
1420    checkpoint51q_post
1421    o cd_code:
1422      - moved cd_scheme.F -> cd_code_scheme.F
1423      - separate read_checkpoint from cd_code_ini_vars.F
1424      - separated cd_code part from write_checkpoint
1425      - updated AD_SOURCE, generated .flow
1426      - added CD_CODE_VARS.h to the_main_loop
1427      - Moving cd_code specific store dir.s to pkg/cd_code
1428    o ctrl package totally restructured
1429      - pack/unpack now optional and decoupled from
1430        xx_/adxx_ I/O
1431      - ctrl_pack/unpack cleaned
1432        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1433      - confined inclusion of AD_CONFIG.h to where necessary.
1434    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1435    
1436    checkpoint51p_post
1437    o create initial cd_code package
1438      - WARNING: the initialization of fields within packages
1439        is broken because INI_FIELDS (where READ_CHECKPOINT is
1440        called) is called *before* PACKAGES_INIT_VARIABLES.
1441        This seems to be backwards since
1442        1) its important to initially zero the entire field including
1443           the "halo" region
1444        2) zeroing needs to be done *before* reading pickup info
1445           and the pickup call might or might not happen in any
1446           particular run
1447      - this needs an overhaul for R2
1448    o cleanup verification/*/code/GMREDI_OPTIONS.h
1449    o cleanup testreport
1450    
1451    checkpoint51o_post
1452    o bringing AD-related verif's up to date with genmake2
1453      - carbon/
1454      - global_ocean.90x40x15/
1455      - hs.94.1x64x5/
1456      - (front_relax/ )
1457    o (more) consistent directory structure for AD-related verif.'s
1458    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1459    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1460    o bug fix in find_alpha.F for MDJWF:
1461      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1462        change rho -> rho-rhoConst
1463      - replace call find_rho to find_rhonum
1464    o initialisation of rFlx extended to full array (required by TAF)
1465      and shifted to thermodynamics
1466    o removed PTRACERS.h in ptracers routine
1467    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1468    o Correcting initialisations for fVerU, fVerV.
1469    o helping TAF to recognize dependency on kUp for
1470      fVerU, fVerV
1471    o Replacing delZ by delR in pkg/ctrl/
1472    checkpoint51o_pre
1473    
1474    o undid all of cp51 pending some cleanups and discussion
1475    o added the [#include "AD_CONFIG.h"] statement to all files that need
1476       it for adjoint/tl #defines
1477     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1478     o removed tools/genmake since it no longer works
1479    
1480    checkpoint51n_post
1481    o modifications to make FREEZE flux visible to pkg/kpp
1482      - moved surfaceTendencyTice from pkg/seaice to main code
1483      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1484      - subroutine FREEZE now limits only surface temperature
1485        (this means new output.txt for global_ocean.90x40x15,
1486         global_ocean.cs32x15, and global_with_exf)
1487    o added surface flux output variables to TIMEAVE_STATVARS
1488    
1489    checkpoint51n_pre
1490    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1491    o added [#include "AD_CONFIG.h"] to all files that use the following
1492      defines:
1493      - ALLOW_ADJOINT_RUN
1494      - ALLOW_TANGENTLINEAR_RUN
1495      - ALLOW_ECCO_OPTIMIZATION
1496    
1497    checkpoint51m_post
1498    o incorporating changes to get TAMC/TAF working in genmake2
1499      - added new TAMC/TAF targets to the Makefile
1500      - various cleanups related to package handling
1501      - these changes should have no impact on the forward model
1502    
1503    checkpoint51l_post
1504    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1505     - faster algorithm for cal_addtime.F
1506     - higher precision arithmetic, where needed
1507     - pkg/exf *startdate variables changed from calendar date to
1508       model integration time
1509    
1510    checkpoint51l_pre
1511    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1512    o enable to apply restoring on S & T only in a latitude band.
1513    o update output (external_forcing_surf modif. change truncation errors)
1514       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1515    
1516    checkpoint51k_post
1517    o change default to: useNHMTerms=.FALSE.
1518     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1519       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1520     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1521        exp1, ideal_2D_oce
1522     - change data file of oceanic exp (leave the results unchanged for now)
1523       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1524    o set gravitySign automatically according to the vertical coordinate used
1525      (and change sign: back to "logical" value: +1 when R increases downward)
1526    o added an include barrier to the default CPP_OPTIONS.h and
1527      removed the #include "PACKAGES_CONFIG.h" from it
1528    o fix a bug in mom_fluxform (from chk51j_post)
1529    
1530    checkpoint51j_post
1531    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1532    o adjusted some flow directives (dynamics, thermodynamics)
1533    o added cubed-sphere case to test cost function
1534    o heckpoint_lev?_directives.h now include
1535      pkg-specific directives, whenever those are enabled.
1536    o Moving pkg-specific flow directives to corresponding pkg
1537      Moving pkg-specific differentiation list to corresponding pkg
1538      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1539      ---> conventions are
1540           - pkg_ad.flow
1541           - pkg_ad_diff.list
1542           - pkg_ad_check_lev?_dir.h
1543    
1544    checkpoint51i_post
1545    o merge of the branch-genmake2
1546      - knowingly breaks the older genmake
1547      - automatic generation of all ALLOW_${PKG_NAME} defines
1548      - new testreport supersedes older testscript
1549    o large number of package inclusion and header cleanups
1550    checkpoint51i_pre
1551    
1552    o new output for adjoin of global ocean vector invariant
1553    o fix for checkpoint of thermodynamic seaice and bulk_force
1554    o Steph gchem various cleanups
1555    
1556    checkpoint 51h_pre
1557    o fixed some single quotes
1558    o modify gchem pkg to be more versatile
1559    o modifications to clean up dic pkg
1560    o add pkg/cfc
1561    
1562    checkpoint51g_post
1563    o provide links for ARPACK and ADM*TLM
1564    o start removing verification/vero/
1565    o update AD-related stuff
1566      (in particular some IF-statements in model/src/ routines)
1567    o adding to verification/global_ocean.90x40x15/ adjoint of
1568      vector invariant setup
1569    
1570    checkpoint51f_post
1571    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1572    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1573      of tracer Green's fucntions for ocean inversion project.
1574    
1575    checkpoint51f_pre
1576    o Added on-the-fly spatial interpolation capability
1577        "USE_EXF_INTERPOLATION" to pkg/exf.
1578      - This is a temporary Cartesian-grid hack until
1579        the super-duper ESMF coupler becomes available.
1580      - See verification/global_with_exf/README for usage example.
1581      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1582        flags and modified pkg/seaice accordingly.
1583    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1584        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1585        non-local transport term.
1586    
1587    checkpoint51e_post
1588    o pkg/mom_vecinv:
1589      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1590      - add time-ave diagnostic of vorticity advection.
1591    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1592    o atmospheric geopotential: - include water vapor effect;
1593                                - use p^kappa in p* scaling.
1594    o land pkg: read initial state from files.
1595    o AIM : add stratospheric drag in the upper level
1596    
1597    checkpoint51d_post
1598    o change function ILNBLNK (=> last non-blank char.) to return zero
1599      (instead of the string length) when the string. char is empty
1600    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1601    o modif's to restore TAMC compatibility
1602      - avoid "_d" constructs in PARAMETER declarations
1603      - avoid interrupting lines by comment lines
1604    o Use cluster local disks for purely local I/O
1605      vs. globally visible disks needed for ctrl stuff
1606      (merged from ecco-branch)
1607      - new active_file_loc... and mdsio_..._loc routines
1608      - affected packages: autodiff, ctrl, grdchk, mdsio
1609    
1610    checkpoint51c_post
1611    o introducing integer flag debugLevel
1612      - debLevZero: suppress all output
1613      - debLevA: standard
1614      - debLevB: equivalent to current debugMode=.TRUE.
1615    o introducing pathname variable mdsioLocalDir for mdsio
1616      that can be specified at runtime
1617      (relevant for cluster I/O to local disk)
1618    `
1619    >>>checkpoint51b_post
1620    adjoint of ptracers
1621    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1622    o extended state in checkpoint_lev?, etc.
1623    o alternative ctrl/cost with tr1 or ptracer
1624    o new comlev1_bibj_ptracers
1625    o new ptracers.flow
1626    o made ptracers_forcing same as external_forcing_s
1627    o added verification for adjoint with ptracers
1628      - adm. grdchk fail so far
1629      - tlm. grdchk OK
1630      - checked tapelev/comlev recomputations: OK
1631    <<<checkpoint51b_pre
1632    
1633    checkpoint51a_post
1634    o added code for biogeochemistry package
1635      - new pkgs: dic, gchem
1636      - new subroutine in ptracers
1637    o modify code for biogeo packages
1638      - in model/src and pkg/ptracers
1639    
1640    checkpoint51
1641    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1642      - autodiff, ctrl, exf, grdchk, seaice
1643      kept separate packages
1644      - cost, ecco, obcs
1645    o updating verification/internal_wave, verification/lab_sea
1646      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1647    
1648    checkpoint50i_post
1649    o Preparing next differentiable checkpoint and sync
1650      of MAIN vs. ecco-branch
1651      - 1st step: this one is differentiable
1652      - 2nd step: next(! not this) checkpoint will have updated packages
1653                  from ecco-branch)
1654    
1655    checkpoint50h_post
1656    o new package "land": provide surface BC for AIM.
1657    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1658    o AIM: use true log-P extrapolation for near surface temp (= as in
1659        F.Molteni paper) ; update aim.5l_cs output.
1660    o New variable in PARM03 for more flexible pickups
1661    o somewhat cleaned package initialisation sequence for
1662      ctrl/ cost/ ecco/ in packages_... routines
1663    
1664    checkpoint50g_post
1665    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1666      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1667      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1668        made the default because of faster convergence than ADI
1669    
1670    checkpoint50f_post
1671    o exf totally restructured
1672      - replaced all exf_set_ routines by one generic exf_set_gen.F
1673        and made sure it's still differentiable
1674      - split exf_getffields.F into new exf_bulkformulae.F
1675      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1676      - updated adjoint/makefile and relevant verif. accordingly
1677    
1678    checkpoint50f_pre
1679     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1680          + change Evap over land. (update aim.5l_cs output)
1681     o added missing .cvsignores and made uniform across expts
1682     o changed configuration of tidal_basin_2d expt
1683     o added pkg/debug functions for tracing code in fatal crashes
1684     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1685     o new fn in pkg/monitor to stop model if solution grows too big
1686     o removed lots of single quotes from comments
1687    
1688    checkpoint50e_post
1689    o make KPP work with PTRACERS
1690     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1691       nearly a copy of kpp_transport_s
1692     - there is no analogue to SurfaceTendencyS, so I have to use
1693       gPtr(of the surface layer) instead
1694    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1695    checkpoint50e_pre
1696    
1697    checkpoint50d_post
1698    o change kpp output from multiple-record state files to single-record state
1699      files analogous to write_state.F
1700    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1701      analogous to the cg2d-related output.
1702    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1703      so that writing to internal file fn (with length 512) fails.
1704    checkpoint50d_pre
1705    
1706    checkpoint50c_post
1707    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1708    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1709    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1710    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1711    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1712    
1713    checkpoint50c_pre
1714    Merging from release1_p13:
1715    o bug fix for pkg/seaice dynamic solver
1716    o Added SEAICE_initialHEFF to pkg/seaice
1717    
1718    checkpoint50b_post
1719    o store u*,v* in gU,V instead of in guNm1,gvNm1
1720    o in order to put the momForcing out of the Adams-Bashforth:
1721      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1722      to timestep.F
1723    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1724    o re-generate output for highly sensitive test-exp:
1725       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1726    
1727    checkpoint50b_pre
1728    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1729    o corrected CPP option mismatch in exf_Bulk... functions for case
1730      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1731    
1732    checkpoint50a_post
1733    o Bug fix for merging between c50 and KPP.
1734      ikey was passed from thermodynamics to kpp_calc via
1735      common block rather than being recomputed in kpp_calc,
1736      in contradiction with new key itdkey.
1737      New key ikppkey created, and tamc.h headers updated.
1738    
1739    checkpoint50
1740    - 2nd step of merge with ecco-branch:
1741      merge changes in ecco-branch back into main trunk
1742    - bug fix in find_alpha
1743    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1744    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1745    - merged some sliced AD support routines
1746    
1747    checkpoint49
1748    merged from ecco-branch:
1749    o exf:
1750      - Enable initialisation of forcing fields to constant
1751        (runtime) values.
1752      - in exf_getffields.F
1753        Reduce i-/j-loop to interior domain, discarding overlaps.
1754        That also fixes wrong TAF-key computations for key_1, key_2
1755        with bulf formulae.
1756      - exf_init.F modify #ifdef for exf_init_evap
1757      - exf_getffieldrec.F, ctrl_getrec.F
1758        The following INT-usages are not safe:
1759          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1760          fldcount = int(fldsecs/fldperiod) + 1
1761        and were modified.
1762    o autodiff: checkpoint_lev...
1763      - updated storing for bulk formulae (some arrays were missing)
1764      - added state for seaice package
1765      - synchronized with main branch
1766    o DIVA:
1767      Modif.s in
1768      - the_main_loop.F
1769      - the_model_main.F
1770      and added cost_final_restore.F cost_final_store.F
1771      o With these changes, it is possible to fully separate
1772        the first forward run to compute the cost function (mdthe_main_loop)
1773        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1774        into separate model executions.
1775        This enables better tuning of DIVA to given queue sizes.
1776      o Loss of cost function value in consecutive DIVA runs is
1777        fixed by storing to 'costfinal' file.
1778      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1779        beginning/end of adjoint integration is accounted for.
1780      The current changes apply to TAF-1.4.26.
1781      TAF has one remaining bug, requiring one manual change
1782      (see MITgcm manual).
1783    o cal: synchronized between MAIN and ecco-branch
1784    
1785    checkpoint48i_post
1786    o Changes to restore differentiability of code w.r.t. previous tag
1787      (mostly adding new routines to make list and replacing
1788      pressure by totPhiHyd).
1789    o Updated and merged grdchk package
1790      - has both ADM and TLM checks
1791      - works for single- and multi-proc.
1792      - output cleaned
1793      - worked successfully for parallel DIVA
1794    o genmake:
1795      - Adding -platform=SP4
1796      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1797    o Modif. for DIVA:
1798      ctrl_unpack should not be called in intermediate DIVA interval.
1799      (similar thing would apply for active files such as
1800      tbar, sbar, psbar, which should not be reinitialised;
1801      only relevant for ecco-branch)
1802    
1803    checkpoint48h_post
1804    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1805    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1806    o Added SEAICE_initialHEFF to pkg/seaice
1807    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1808    
1809    checkpoint48g_post
1810    --- EOS:
1811    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1812      store total Potential in totPhyHyd for diagnostics & EOS.
1813    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1814    --- Pressure/geopotential gradient:
1815    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1816    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1817      ( changes results of global_ocean_pressure )
1818    o NLFS + z-coord.: add eta*Rho' contribution.
1819    o accurate phiHyd when using interface-W at the middle between 2 centers
1820     ( changes results of ideal_2D_oce )
1821    o includes r* 2nd term in potential gradient.
1822    
1823    checkpoint48f_post
1824    Merging from release1_p12:
1825    o Modifications for using pkg/exf with pkg/seaice
1826      - improved description of the various forcing configurations
1827      - added basic radiation bulk formulae to pkg/exf
1828      - units/sign fix for evap computation in exf_getffields.F
1829      - updated verification/global_with_exf/results/output.txt
1830    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1831      (SBO) core products, including oceanic mass, center-of-mass,
1832      angular, and bottom pressure (see pkg/sbo/README.sbo).
1833    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1834      to avoid negative values in shallow regions.
1835      - updated verification/natl_box/results/output.txt
1836      - updated verification/lab_sea/results/output.txt
1837    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1838    o Added useSingleCpuIO option (see PARAMS.h).
1839    o Updated useSingleCpuIO option in mdsio_writefield.F to
1840      work with multi-field files, e.g., for single-file pickup.
1841    o pkg/seaice:
1842      - bug fix in growth.F: QNET for no shortwave case
1843      - added HeffFile for specifying initial sea-ice thickness
1844      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1845    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1846      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1847    o pkg/seaice:
1848      - adjoint-friendly modifications
1849      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1850    
1851    checkpoint48e_post
1852    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1853    o dynamics: change definition of computational domain & adapt mom_fluxform
1854      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1855    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1856        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1857        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1858        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1859        inverted_barometer solid-body.cs-32x32x1
1860      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1861    
1862    checkpoint48d_post
1863    o in preparation for r*:
1864     a) use pre-computed gradient of hydrostatic potential:
1865        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1866     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1867        => affects results of glob_oce_pressure (different truncation error)  
1868      update output.txt of ideal_2D_oce & global_ocean_pressure
1869    
1870    checkpoint48d_pre
1871    o in preparation for r*:
1872      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1873      pass the 2 comp. of the grad. as arguments to momentum S/R.
1874      but for the moment, only used if it does not change the results.
1875    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1876    
1877    checkpoint48c_post
1878    Modifications in treatment of initial flux forcing controls
1879    to avoid extra storing of flux fields.
1880    
1881    checkpoint48c_pre
1882    o Added tidal_basin_2d experiment (currently 1D!)
1883    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1884    
1885    checkpoint48b_post
1886    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1887     (modification to pressure gradient not yet implemented)
1888    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1889      (for U & V) that are used for vertical advection of momentum.
1890    
1891    checkpoint48a_post
1892    o In preparation for r*, use temp. array to compute vertical transport
1893       in flux-form momentum pkg. => change results of few test-exp.
1894      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1895                        lab_sea, natl_box & plume_on_slope
1896    
1897    checkpoint48
1898    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1899    
1900    checkpoint47j_post
1901    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1902    o moved adexch from forward_step to addummy_in_stepping
1903    o added exch in ctrl_map_...
1904    o aveFreq.=0. at end of cost_final to avoid overwrite in
1905      reverse checkpointing loop
1906    o Yet more changes in gmredi:
1907      * adgmredi_calc_tensor
1908        avoiding all recomputation of gmredi_slope_limit
1909      * adgmredi_x/y/rtransport
1910        added flag for excessive storing to avoid recomp. of
1911        u/v/rtans, dTdx/y/z
1912        -> this is not really necessary and very memory-consuming
1913      * adgmredi_slope_psi:
1914        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1915      * gmredi_slope_limit
1916        re-activated full calculation of taperfct for case 'ac02'
1917    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1918    
1919    checkpoint47i_post
1920    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1921    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1922      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1923    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1924    o gmredi: fix few bugs.
1925    
1926    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1927    This will be a good checkpoint to plug into the ecco-branch.
1928    o few modif.'s to get latest version adjointed
1929      (mainly kick out code in ini_linear_phisurf)
1930    o modif's to run adjoint with exactConserv
1931    o case GM_BOLUS_ADVEC should be cleaned
1932      S/R gmredi_slope_psi should be cleaned
1933    o verification/carbon now has exactConserv=.TRUE.
1934    
1935    checkpoint47g_post
1936    o time-average AIM output: becomes independent from statvars time-average
1937      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1938    o After TAF bug fix:
1939      Tested adjoint of gmredi package.
1940      Tests were done with checkpoint47 rather than with latest
1941      checkpoint47f_post since the latter is broken for the adjoint
1942      verification/carbon/ contains both ADM and TLM gradient checks.
1943    Here they are, before they get changed/lost/stolen.
1944    Mostly modif.'s to fix numerical sensitivities.
1945    Gradient checks OK for
1946    - GM_taper_scheme:
1947      * clipping
1948      * ac02
1949      * linear
1950      * glw91
1951      * dm95
1952      * ldd97
1953    - GMREDI_OPTIONS:
1954      * GM_VISBECK_VARIABLE_K
1955      * GM_NON_UNITY_DIAGONAL
1956      * GM_EXTRA_DIAGONAL
1957      * GM_BOLUS_ADVEC
1958    in conjunction with data.gmredi parameters to be checked in
1959    in a few minutes under verification/carbon/code/
1960    
1961    checkpoint47f_post
1962    Merging from release1_p10:
1963    o modifications for using pkg/exf with pkg/seaice
1964      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1965        and SEAICE_EXTERNAL_FLUXES
1966      - pkg/exf CPP options EXF_READ_EVAP and
1967        EXF_NO_BULK_COMPUTATIONS
1968      - usage examples are Experiments 8 and 9 in
1969        verification/lab_sea/README
1970      - verification/lab_sea default experiment now uses
1971        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1972    
1973    checkpoint47e_post
1974    o created a tag prior to creating a branch
1975    
1976    checkpoint47d_post
1977    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1978      at the bottom boundary had an erroneous half slip boundary condition
1979    o added bottom drag and no slip boundary condition capabilities to
1980      oceanic pressure coordinates code
1981    o added new verification experiment global_ocean_pressure, this experiment is
1982      also described in the tutorial section of the manual
1983    checkpoint47d_pre
1984    
1985    checkpoint47c_post
1986    o Added a verification experiment for a global cubed-sphere ocean run
1987      -  verification/global_ocean.cubed32x32x30
1988      -  uses pkg/therm_seaice and pkg/bulk_forcing
1989    
1990    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1991    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1992      when using P-coordinate; only implemented for atmospheric config.
1993    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1994      NOTES: requires option NONLIN_FRSURF to be "#define".
1995    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1996    
1997    checkpoint47b_post
1998    Merging from release1_p9:
1999    o pkg/seaice
2000      - removed GOTO's and added taf directives
2001      - double precision constants to reduce the g77 (Linux)
2002        to F77 (SGI) differences reported in release1_p8
2003    o tools/genmake
2004      - added SGI options
2005    o verification/testscript
2006      - updated to that of checkpoint47a_post
2007    o verification/global_ocean.90x40x15/input/eedata
2008      - modified for SGI f77 compatibility
2009    o verification/lab_sea
2010      - added description of sea-ice model
2011      - added missing matlab routines
2012      - added test of thermodynamics parallelization
2013    
2014    checkpoint47a_post
2015    o new pkg: aim_v23
2016     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2017       for now, keep the same surface forcing as before.
2018     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2019     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2020     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2021    o add diagnostic of surface correction term in monitor output
2022    
2023    o bulk_force and therm_seaice
2024    - Two packages:  bulk_force (Bulk forcing)
2025      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2026    - Earlier integration from Stephaine Dutkiewicz
2027      and Patrick Heimbach.
2028    - Two ifdef statements for compile time,
2029       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2030    
2031    checkpoint47
2032    differentiable version of checkpoint46n_post
2033    o bug fix in quasihydrostaticterms
2034    o * "clean" adjoint code (in terms of extensive recomputations)
2035        can now be obtained for all GMREDI options (i.e. for
2036        - GM_VISBECK_VARIABLE_K
2037        - GM_NON_UNITY_DIAGONAL
2038        - GM_EXTRA_DIAGONAL
2039        - GM_BOLUS_ADVEC )
2040      * However, wrong gradient check problem remains unsolved.
2041      * New CPP options have been introduced for different
2042        tapering schemes
2043    o external_fields_load now part of differentiation list
2044    o pressure needs multiple storing;
2045      would be nice to have store_pressure at beginning or
2046      end of forward_step, e.g. by having phiHyd global (5-dim.)
2047      (NB: pressure is needed for certain cases in find_rho,
2048      which is also invoked through convective_adjustment).
2049    o recomputations in find_rho for cases
2050     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2051    o #define ATMOSPHERIC_LOADING should be differentiable
2052    o ini_forcing shifted to begining of initialise_varia
2053    o Incorporating QNVS line search routines into MITgcm
2054      (this is separate code, and therefore not under pkg)
2055      lsopt/, optim/
2056    o Updated verification/carbon/
2057      - #define GM_VISBECK_VARIABLE_K
2058      - GM_taper_scheme    = 'ldd97'    
2059    
2060    checkpoint46n_post
2061    Merging from release1_p8:
2062    o verification/natl_box:
2063      updating new external_fields_load routine
2064    o New package: pkg/seaice
2065      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2066      The sea-ice code is based on Hibler (1979-1980).
2067      Two sea-ice dynamic solvers, ADI and LSR, are included.
2068      In addition to computing prognostic sea-ice variables and diagnosing
2069      the forcing/external data fields that drive the ocean model,
2070      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2071      The implied surface heat flux is then stored in variable
2072      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2073      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2074      non-local transport term.  Because this call precedes model
2075      thermodynamics, temperature under sea-ice may not be "exactly" at
2076      the freezing point by the time theta is dumped or time-averaged.
2077      N.B.: fairly large differences in accuracy occur across
2078            different platforms/compilers; comparison between
2079            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2080            generated output gives:
2081       T           S           U           V
2082      C D M    c        m  s        m  s        m  s        m  s
2083      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2084      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2085      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2086    
2087      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2088    o GAD:
2089      - generated new common blocks to account for call of
2090        same gad routines with differing traceridentities
2091        (needed to modify tracerIdentity indices in GAD.h)
2092      - generated separate common blocks for case useCubedSphereExchange
2093        (Department of Futurology)
2094      - parameter lists to gmredi_?transport: added tracerIdentity
2095      - added new key indices to tamc.h
2096    o external_fields_load:
2097      - added this routine to TAF list
2098      - needed to make some common blocks global and additional storing
2099        along the same lines as exf package (checkpoint_lev?_directives.h)
2100    o exf:
2101      updated external forcing package
2102      - bug fixes carried over from ecco-branch
2103        (missing OBCS_OPTIONS.h in two routines)
2104      - enable easy to use "no forcing".
2105      - added exf I/O for atmospheric loading
2106      - added exf I/O for runoff data
2107      - transfered scaling between exf <-> MITgcm to exf namelist
2108    o Adding new verification experiment global_with_exf.
2109      This verification experiment is almost identical to the
2110      global_ocean.90x40x15 experiment, except that it uses
2111      the exf (and cal) package instead of the
2112      external_fields_load routine (cf README file).
2113    
2114    checkpoint46m_post
2115    o modified testscript to return -- when there are no lines of "%MON" output
2116    o added new flag "quasiHydrostatic" for QH mode
2117      and new routine quasihydrostaticterms()
2118    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2119      New routine: mom_u_coriolis_nh()
2120    o fixed sign of non-hydrostatic metric terms in u and v equations.
2121      Depend on correct sign of gravitySign.
2122    o added work.pc* to .cvsignore in aim directories using ifc
2123    o introduced flag for controllin non-hydrostatic metric terms
2124    o removed gravitySign from PARM04
2125    o switched to g77/ifc from pgf77 in aim experiments
2126    
2127    checkpoint46l_post
2128    o made convective adjustment work with pressure coordinates:
2129     - changed the direction of k-loop in convective_adjustment.F for the
2130       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2131     - adjusted the reference pressure k-index in convective_adjustment.F
2132     - adjusted the convection condition in convect.F (in analogy to
2133       calc_ivdc.F)
2134     - convective_adjustment no longer computes anything on the halos
2135     - removed the warnings about negative salinity from find_rho.F and
2136       find_alpha.F; instead the new routine look_for_neg_salinity, called
2137       at the beginning of find_rho, find_alpha, and find_beta, does a
2138       check of the entire slice, if CPP-option
2139       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2140    checkpoint46l_pre
2141    
2142    checkpoint46k_post
2143    o fixed the verification/global_ocean.90x40x15 experiment:
2144     - new bathymetry (the world according to A., JMC, and M.)
2145     - new initial fields and forcing fields (*.bin files)
2146     - new POLY3.COEFFS (for the next release one should switch to a full
2147       equation of state: JMD95P or MDJWF)
2148     - fixed several errors and redundancies in the data file
2149     - experiment uses looped cells
2150     - added matlab directory with diagnostic scripts for plotting of output
2151    
2152    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2153     - read AIM physics parameters from a file (data.aimphys)
2154     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2155    
2156    checkpoint46j_post
2157    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2158    o move wVel computation at the end of the time step, in S/R integr_continuity
2159    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2160    o update timeave pkg for wVel diagnostic.
2161    checkpoint46j_pre
2162    
2163    checkpoint46i_post
2164    o Clean up AIM package (and keep the results unchanged):
2165      include CPP_OPTION and use IMPLICT NONE in all routines ;
2166      declare all the variables _RL ; use _d 0 for all numerical constants.
2167      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2168    
2169    checkpoint46h_post
2170    o cleaned up the use of rhoNil and rhoConst.
2171      - rhoNil should only appear in the LINEAR equation of state, everywhere
2172        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2173        and the dynamical equations are all divided by rhoConst
2174    o introduced new parameter rhoConstFresh, a reference density of fresh
2175      water, to remove the fresh water flux's dependence on rhoNil. The default
2176      value is 999.8 kg/m^3
2177    o cleanup up external_forcing.F and external_forcing_surf.F
2178      - can now be used by both OCEANIC and OCEANICP
2179    checkpoint46h_pre
2180    
2181     Added code to convert surface volume flux (fresh water) into
2182     a mass flux when using P coordinates in the ocean (OCEANICP).
2183     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2184    
2185    checkpoint46g_post
2186    o Include a new diagnostic variable phiHydLow for the ocean model
2187      - in z-coordinates, it is the bottom pressure anomaly
2188      - in p-coordinates, it is the sea surface elevation
2189      - in both cases, these variable have global drift, reflecting the mass
2190        drift in z-coordinates and the volume drift in p-coordinates
2191      - included time averaging for phiHydLow, be aware of the drift!
2192    o depth-dependent computation of Bo_surf for pressure coordinates
2193      in the ocean (buoyancyRelation='OCEANICP')
2194      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2195        Theta, Salinity, and Pressure in the parameter list. This routine is
2196        presently contained in find_rho.F. This routine does not give the
2197        correct density for 'POLY3', which would be a z-dependent reference
2198        density.
2199    o cleaned up find_rho
2200      - removed obsolete 'eqn' from the parameter list.
2201    o added two new verification experiments: gop and goz
2202      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2203    checkpoint46g_pre
2204    
2205    checkpoint46f_post
2206    o Enable tangent linear (forward mode) gradient checks:
2207      - extended active file handling to g_... files
2208      - added TANGENT_SIMULATION to theSimulationMode
2209      - extended grdchk package accordingly
2210    o added tangent linear setup in verification/carbon/code_ftl
2211    o added adjoint setup in verification/front_relax/code_ad
2212    
2213    checkpoint46e_post
2214    o Added new equation of state -> MDJWF
2215      - EOS of McDougall et al., 2002, JAOT, submitted
2216      - caveat: the equation of state is only valid for a smaller (more
2217        realistic?) range of values than JMD95P/Z and UNESCO
2218      - added masks to the calculation of pressure in store_pressure
2219      - added more check values for density in check_eos (ini_eos.F), some of
2220        the old check values are out of the range of the MDJWF-eos, so don't
2221        expect perfect matches for those
2222    checkpoint46e_pre
2223    
2224    checkpoint46d_post
2225    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2226      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2227      case of pressure coordinates. eosType='JMD95Z' in
2228      combination with buoyancyRelation='OCEANICP' now causes an error.
2229    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2230      in find_alpha/beta.
2231    checkpoint46d_pre
2232    
2233    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2234      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2235    
2236    checkpoint46c_post
2237    o Changes necessary for ocean in p-coordinates
2238     -  Added new buoyancy relation = 'OCEANICP'
2239     -  Added new parameters = gravitySign (this used to be contained inside
2240        the factor dRdZ which I added when we first switched to R coordinates).
2241     X GM/Redi is not compatible (yet)
2242     X bottom drag and no-slip need to be debugged.
2243    checkpoint46c_pre
2244    
2245    checkpoint46b_post
2246    o Added new equation of state -> JMD95Z and JMD95P
2247      - EOS of Jackett and McDougall, 1995, JAOT
2248      - moved all EOS parameters into EOS.h
2249      - new routines ini_eos.F, store_pressure.F
2250    o Added UNESCO EOS, but not recommended because it requires
2251      in-situ temperature (see JMD95)
2252    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2253      unesco.f to be used with POLY3
2254    checkpoint46b_pre
2255    
2256    checkpoint46a_post
2257    o Added (atmospheric) pressure loading
2258      - new field in FFIELDS.h, etc...
2259      - new cpp flag ATMOSPHERIC_LOADING
2260    o Changed hFacC to _hFacC in calc_phi_hyd.F
2261    o Added SHORTWAVE_HEATING to some files for consistency
2262    checkpoint46a_pre
2263    
2264    checkpoint46
2265    further merges from release1_p5
2266    o new ctrl package
2267      - adopted from ECCO environment to enable optimization
2268      - added Eliassen Palm fluxes to controls
2269    o added Eliassen Palm flux controls to gradient check package
2270    o cost package
2271      - Compatible with new ctrl package
2272      - added Eliassen Palm cost hooks
2273      - modif's of existing cost functions
2274    o Adjoint-related bug fixes in kpp:
2275      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2276      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2277    o autodiff package
2278      - flow directives:
2279        + new for S/R do_the_model_io
2280        + enhanced for S/R checkpoint
2281        + new gmredi.flow
2282      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2283        disable adcommon.h/g_common.h by default.
2284      - fixed problem for adjoint of global_max
2285    o modified verification/carbon/
2286    o New setup for adjoint of global_ocean
2287    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2288    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2289    o incorporated hooks for sponge layer code (external_forcing.F)
2290    
2291    checkpoint45d_post
2292    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2293    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2294      (affects plume_on_slope "cg2d" output)
2295    o add new parameter deltaTfreesurf for free-surface time stepping
2296    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2297    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2298    o change phiMin in exp1 (to agree with documentation)
2299    o add new flags:
2300     - T,S forcing inside/outside Adams-Bashforth
2301     - turn off temp,salt advection and/or forcing
2302     - for each tracer, define internal flag for multiDimAdvection & A-B
2303    o monitor: change definition of KE to check conservation of Energy
2304    
2305    checkpoint45c_post
2306    o Removed f90 comments ("!")
2307    o Modified initialisations to enable exf package for MITgcm
2308      (without invoking ECCO_PACKAGE).
2309    o modifications to gradient check package (Martin Losch)
2310      - enable centered differences
2311      - modified format of standard output
2312    
2313    checkpoint45b_post
2314    o cleaned exchange calls in cg2d
2315    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2316    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2317      to configure barotropic setup (Martin Losch)
2318    o moved some initialisations within bi,bj loop in dynamics
2319      (TAF flow dependency)
2320    o in initialise_varia, moved call packages_init_variables
2321      before convective_adjustment_init
2322      (corresponding adjustment of TAF tape initialisation).
2323    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2324    
2325    checkpoint45a_post
2326    o compute Rho over the whole domain (extend iMin,jMin indices)
2327    o specific exchange for X-slice domain (case Ny=1)
2328    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2329    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2330    
2331    checkpoint44h_post = checkpoint45
2332    o Fix to restore differentiability:
2333      place at which packages_init_variables is called in
2334      initialise_varia is crucial for reverse control flow.
2335    o modifications in GMRedi to enable stable adjoint
2336      (corresponding modif's in thermodynamics, dynamics)
2337    o added missing hook for sponge layer code in external_forcing
2338    o modified test cost functions
2339    o storing in gad_advection (plus removal of write(0,*)!
2340    o missing headers TR1.h added in convective_adjustment routines
2341    o errorMessageUnit set non-equal zero in eeboot
2342      (conflict on some platforms, e.g. IBM SP3)
2343    o modified carbon verif.
2344    
2345    checkpoint44h_pre
2346    o vertical grid option: allow to put the Interface at the middle between
2347      2 cell-centers ; replace delZ in pkg/kpp by drF.
2348    o GM Advective form: Tracers are advected using the residual transport (=
2349      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2350    
2351    checkpoint44g_post
2352    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2353      results) ; ifdef missing in thermodynamics.F
2354    
2355    checkpoint44f_pre,checkpoint44f_post
2356    o added PTRACERS package
2357      This allows an arbitrary number of passive tracers to be integrated
2358      forward simultaneously with the dynamicaly model.
2359      + Implemented so far:
2360        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2361        - I/O and checkpointing
2362        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2363      + Not implemented so far:
2364        - KPP
2365        - OBCS
2366      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2367        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2368        line in data.pkg.
2369      + This package is disabled by default since it increases storage.
2370    
2371    
2372    o testscript: added -cleanup option
2373    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2374                 b) enable to filter 2D fields.
2375    
2376    checkpoint44e_pre,post
2377    o re-wrote convective adjustment to use pre-calculated weights
2378      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2379      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2380      Original calls to convect() still in place.
2381    
2382    chkpt44d_pre,post
2383    o added missing EXCLUDE_MONITOR flags
2384    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2385      (incompatible typ in MIN/MAX expressions caused problems
2386      on IBM SP3)
2387    o in genmake added variable MAKEDEPEND
2388      plus resetting for case SunOS
2389    o added timer_stats.c routine for IBM SP3
2390    o removed variables in dynamics
2391    !!! I forgot to create tag chkpt44d_pre !!!
2392    !!! But chkpt44d_pre = chkpt44c_post    !!!
2393    
2394    o real fresh water flux implemented with non-linear free-surface.
2395    
2396    chkpt44c_pre,post
2397    o few fix (mask in shap_s2, EmPmR in external_field_load,
2398      USE_NATURAL_BCS in solve_for_P);
2399    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2400    
2401    checkpoint44b_pre/_post
2402    o merge of relevant stuff from the ecco-branch:
2403      - genmake: removed $S64 overwrite for case SunOS
2404      - pkg/exf: update and corrections for field swapping and obcs
2405      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2406                  harmonized between ECCO and MITgcm
2407      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2408                      updated checkpointing_lev... lists for obcs
2409      - model/src: minor changes in forward_step, plot_field
2410                   added directive for divided adjoint in the_main_loop
2411      - pkg/mdsio: added mdsio_gl_slice
2412    
2413    o check parameters & config (chkpt44a_pre,post)
2414    o OBC and NonLin_FrSurf.
2415    
2416    checkpoint44
2417    o fix bug in mom_vi_del2uv
2418    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2419    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2420    o update AIM experiments (NCEP input files)
2421    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2422    o added some stuff for AD
2423    
2424    checkpoint43
2425    o added two new advection tests
2426    o added global 4x4 degree ocean test
2427    o added test of H&S94 with free surface on cube
2428    o some final mods for gradient check, adjoint,...
2429    
2430    checkpoint42
2431      Fixed AD-related problems:
2432    o Store directives up-to-date with re-arranged Adams-Bashforth
2433      (mainly thermodynamics.F)
2434    o New store directives for multi-dim. advection schemes
2435      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2436      * new common block and key passkey
2437      (mainly gad_advection.F)
2438    o Modified store directives for split of dynamics/thermodynamics
2439      for the case ALLOW_KPP
2440    o Cleaned argument list for timestep_tracer.F
2441    
2442    checkpoint41
2443    o re-formatted/added comments in prologues of key subroutines
2444      to work with protex
2445    
2446    checkpoint40
2447    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2448    o added FLT (floats) package from Arne along with demo. experiment
2449    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2450      implementation of forward-in-time forcing terms
2451    o more mods for non-linear free-surface including new variable
2452    o modified multi-dim method to work on cube
2453    o bug fix in KPP (from DM)
2454    
2455    checkpoint40pre9
2456    o added DST advection schemes
2457    o fix MPI bug on SGI's
2458    o modifications for non-linear free-surface
2459    o fixed conditionals for fixed flow/passive tracer only mode
2460    o added tension/strain form of stress tensor
2461    o changes to commenting of arguments for TAF/TAMC
2462    o added/updated many matlab scripts
2463    o added multi-dimensional advection method for tracers
2464      
2465    checkpoint40pre8
2466    o new package rw/
2467      Added method for dumping intermediate local arrays:
2468      mdsio_writetile - same as mdsio_writefield except works from inside
2469                        bi,bj loop
2470      mdsio_writelocal - same as mdsio_writetile except works for local
2471                         arrays
2472      write_local_r? - higher-level wrapper for mdsio_writelocal
2473      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2474      Example given at end of mom_vecinv.F that dumps some local arrays.
2475    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2476      control flux-form versus vector invariant code.
2477      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2478      or genmake -DISABLE ...
2479    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2480      (additional storing is now needed for case vecinv;
2481      currently nothing implemented to switch this storing off
2482      in case fluxform is used since no CPP flag available).
2483    
2484    checkpoint40pre7
2485    o bug fix in dynamics.F
2486      calc_viscosity called before k=1,Nr loop.
2487    o added some #ifdef's ALLOW_PASSIVE_TRACER
2488    o cleaned initialisations in ctrl_map_ini
2489      related to TAF
2490    
2491    checkpoint40pre6
2492    o split dynamics into thermodynamics & dynamics
2493    o corresponding split of calc_diffusivity into
2494      calc_diffusivity, calc_viscosity
2495      (kpp_calc_diff, kpp_calc_visc).
2496    o Added diffkr, kapgm to control variables
2497    o bug fix in gmredi_slope_limit for ldd97
2498    
2499    checkpoint40pre5
2500    o proper initialization of Adams-Bashforth time stepping
2501      + uses forward step for very first step of model (iter=0)
2502    o re-generated *all* output since almost all output is modified by this
2503      change (sorry but we've been putting this one off for about 2 years)
2504      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2505        *not* regenerated since they are already out of date and I don't
2506        want to create the impression that they are suddenly working.
2507    o removed KAP stuff for DEC's
2508    o modified/added many .cvsignore files in */code and */input
2509    o added new expt "solid-body.cs-32x32x1"
2510      + this uses an alternative form of ini_curvilinear_grid.F which
2511        is not necessarily any better than the current one...
2512    
2513    checkpoint40pre4
2514    o added re-initialisations of utrans,vtrans,rtrans in
2515      calc_common_factors which are crucial for TAF.
2516    o extended iMin,jMin range for calc_common_factors,
2517      calc_diffusivity
2518    o added option ALLOW_PASSIVE_TRACER
2519    o a few minor updates and fixes
2520    
2521    checkpoint40pre3
2522    o created calc_gtr1.F for gad package
2523    o split the_main_loop and re-introduced forward_step
2524    o some recomputations of nIter0 for TAMC
2525    
2526    checkpoint40pre2
2527    o Updated to latest branch of AJA, JMC
2528    o Added gradient check package
2529    o Added routines for passive tracer handling
2530    o Added carbon sequestration sensitivity experiment
2531    
2532    checkpoint39
2533     o Modifications and fixes to support TAMC
2534       (mainly missing or wrong directives)
2535     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2536       in addummy_in_stepping
2537     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2538     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2539     o Included following packages:
2540       cal: calendar
2541       exf: external forcing
2542       ecco: essential routines to control use of cal, exf
2543             (NB: this is not the full ECCO environment)
2544     o disabled some packages by default in genmake
2545    
2546    checkpoint38
2547     o see notes_c37_adj.txt
2548     o corrected wrong layer index in external_forcing_t
2549     o replaced the_main_loop/forward_step by the_main_loop
2550     o removed forceoutput from write_state
2551       (replaced criteria for initial/final state)
2552     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2553    
2554    checkpoint37
2555     o mdsio.F routine split and packaged in pkg/mdsio
2556       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2557        used unless genmake -disable=mdsio)
2558     o allow a more precise surface-geopotential gradient for the atmosphere
2559       taking into account the change in space of Alpha (=1/rho) at the surface.
2560     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2561       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2562     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2563       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2564       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2565     o Time-Average diagnostics defined as a pseudo package "timeave".
2566     o pickup files : old pickup (before c35) did not work with new code (c35
2567       and after) unless activating 2 commented lines in initialise-varia.
2568     o Non-Hydrostatic pickup file Pb fixed.
2569     o bug with Rigid-lid version (since c35) fixed.  
2570    
2571    checkpoint36
2572     o implement Crank-Nickelson barotropic time-stepping
2573     o recover Time-Average diagnostics
2574     o fix Pb in checkpoint (PR#19)
2575     o AIM become a standard package ; clean unused CPP_kees
2576    
2577    checkpoint35
2578     o subtantial rewrite of dynamics.f
2579     o allows staggered time-stepping
2580     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2581     o added bottom drag (linear + quadratic)
2582    
2583    checkpoint34
2584     o Modified exchange routines for correct reverse simulation.
2585     o Added verification output to comply with bug fix in impldiff.F
2586       as of c33 (exp2, natl_box).
2587     o Corrected store directives in dynamics.F
2588     o Corrected array boundaries in impldiff.F
2589     o Corrected array dimensions in gmredi.
2590       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2591     o Added routine GLOBAL_SUM_INT to global_sum.F
2592     o Added mdsio_gl.F for ECCO purposes.
2593    
2594    checkpoint33
2595     o Fixed bug in lower BC in impldiff.F
2596     o Fixed confusion about units of forcing arrays in FFIELDS.h
2597       namely Fu,Fv,Qnet,Qsw,EmPmR:
2598       - Removed verification/natl_box/code/external_fields_scale.F
2599         (did not differ from that in model/src)
2600       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2601         (see FFIELDS.h for description)
2602       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2603         kpp_calc.F and kpp_transport_t.F
2604       - Removed model/src/external_fields_scale.F and calls to it
2605       - verification/natl_box uses flux data with "atmospheric" sign so
2606         a special version of external_fields_load.F is used to
2607         change the data as it's read in. This way, the arrays
2608         have the right units and signs at all times tha a user could
2609         possibly use them.
2610     o Corrected genmake to delete a temporary file during configuration
2611    
2612    checkpoint32
2613     o Scaling of forcing fields moved from external_forcing.F to
2614       external_fields_scale.F, called directly after loading fields.
2615     o Surface relaxation terms added to surface tendency fields in
2616       extra subroutine.
2617     o impldiff.F changed to avoid storing by TAMC of huge intermediate
2618       fields.
2619     o Changes in GMRedi to comply with packaging structure.
2620     o Modifications and bug fixes in KPP package.
2621     o Verification experiment for KPP added (verification/nat_box/)
2622    
2623    checkpoint31
2624     o Packages interface brought in line with defined standard
2625       -> new routines packages_...F
2626       -> changes in initialise_fixed.F, initialise_varia.F
2627       -> enables initialisation interface for ECCO package
2628     o Rescaling of external forcing fields immediately after read
2629       (removed from external_forcing.F)
2630       -> new: surface_fields_scale.F
2631       -> affects ini_foorcing.F, external_fields_load.F
2632     o Computation of surface tendencies before tendency updates.
2633       -> new: external_forcing_surf.F
2634     o Change of variable names useGMRedi, useKPP, useECCO
2635     o Further changes in dynamics.F, impldiff.F for TAMC
2636     o Tested for experiments 0, 2, 4.
2637       - not yet tested for GMRedi.
2638       - not yet tested for KPP.
2639    
2640    checkpoint30
2641     o Updates for OBCs
2642     o New experiment for test OBCs (internal_wave)
2643     o New output.txt in verification/exp4/results/
2644     o Updates for KPP: calculation of viscosity corrected, new variables
2645       kpp_dumpFreq and kpp_taveFreq
2646     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
2647       and entry for T90 in genmake
2648    
2649    checkpoint29
2650     o packaged KPP and GM/Redi
2651    
2652    checkpoint28
2653     o Corrected initialization of hFacMin for difference vertical coordinates
2654     o Modified calculation of partial cell thickness to more robust algorithm
2655     o config_summary.F: replaced write_1D_... by write_0D_...
2656       read_write.F: added subroutines write_0D_...
2657     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
2658       included some initialisations required for TAMC.
2659     o routine calc_isoslopes: modified sqrt computation to make it
2660       differentiable for zero argument.
2661     o routines dynamics, impldiff:
2662       included store directives and tape key computations required for TAMC.
2663     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
2664    
2665    checkpoint27
2666     o fixed calc_isoslopes() to so that cancellation of terms in tensor
2667       formulation works properly with variable resolution.
2668     o restructured the calling tree between the_model_main() and dynamics()
2669     o split initialise() into initialise_fixed() and initialise_varia()
2670     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
2671       in new routine ini_psurf()
2672    
2673    checkpoint26
2674     o moved some #ifdef in optional routines to encompass everything
2675       except the argument declarations. This was using up some memory.
2676     o fixed macros like _ADT to work with both versions of Linux cpp
2677     o cleaned up some unused and uninitialized variables
2678       (helps when debugging with strict compile options)
2679     o split up CPP_EEOPTIONS.h into options and macros
2680       (macros are now in eesupp/inc/CPP_EEMACROS.h)
2681     o patch for 2 processor JAM mode
2682    
2683    checkpoint25
2684     o updates for OBCs and NH
2685     o dramatically reduced memory usage
2686     o added "JAM" routines for use on Artic network
2687     o parameterization of convection by implicit vertical diffusion
2688     o added a diagnostic of convective index
2689     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
2690       (this is was partly for OBCs and NH but also in anticipation of
2691        an explicit free-surface option)
2692     o initial state input files for U and V
2693    
2694    checkpoint24
2695     o Removed some spurious "REAL"s
2696     o Updated KPP to latest version from JPL
2697     o Added a COS(latitude) in horizontal viscosity
2698    
2699    checkpoint23
2700     o Added del^4 diffusion for salt and temperature
2701     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
2702    
2703    checkpoint22
2704     o Made many small changes: implicit none, format(i5), etc...
2705     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
2706    
2707    checkpoint21
2708     o Introduced new I/O package that supports direct-access records (mdsio.F)
2709     o Split-up mid-level I/O routines
2710     o Updated input data for experiments 0,1,2,4 and 5
2711     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
2712    
2713    checkpoint20
2714     o Tidied up open-boundaries some more
2715     o Added non-hydrostatic code
2716     o Fixed some input data
2717     o Modified MPI start-up to work in "coupled" context.
2718    
2719    checkpoint19
2720     o Tidied up directory structure for verification experiments.
2721     o Added new code for open boundaries.
2722     o Corrected advective terms near boundaries.
2723     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
2724     o Implemented free-slip/no-slip BCs and del^4 dissipation.
2725     o Split default parameters out of ini_parms.F into set_defaults.F.
2726    
2727    checkpoint18
2728     o Further changes for optional code generation with
2729       CPP - ugh!
2730    
2731  checkpoint17  checkpoint17
2732   o Beginning to incorporating modularity   o Beginning to incorporating modularity
2733     for supporting atmos. and ocean configs.     for supporting atmos. and ocean configs.

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