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revision 1.32 by adcroft, Thu Nov 30 16:51:40 2000 UTC revision 1.652 by jmc, Fri Apr 21 14:29:57 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    checkpoint58d_post
8    o upgrade simple test-experiment to tutorial example:
9     step.1: duplicate the experiment and (step.2) will remove the old copy.
10      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
11      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
12      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
13      tutorial_global_oce_biogeo    <- copy of dic_example
14      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
15      tutorial_plume_on_slope       <- copy of plume_on_slope
16      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
17      tutorial_global_oce_optim     <- empty for now (David ?)
18      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
19     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
20    o correct a sign problem in cost_scat.F
21    o obcs and ptracers: fix boundary conditions for advections schemes
22      with larger stencil
23    o thsice adjoint: start
24    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
25      completeness
26    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
27      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
28    o ptracers adjoint:
29      * avoid extensive recomputatations
30      * fix missing re-init. of gptr (missed by TAF)
31    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
32      me to turn off the excessive output to STDOUT that this package produces
33    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
34      and add those terms in Vector-Invariant formulation.
35    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
36      if the control period (xx_hfluxperiod etc) is 0
37    o in profiles pkg, clean routines and fix details
38    o in ecco pkg, reading ssh data:
39      fix problem in case the model does not start at iter0=0
40    o fix mnc-pickup/restart for ptracers
41    o new package prifiles:
42      code to compute profile-based cost by Gael Forget
43      (modifs in ecco, ctrl, autodiff)
44    o Benign bug fix in initialization (spotted by M. Mazloff) of
45      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
46    
47    checkpoint58c_post
48    o adjoint: finish NLFS adjoint and provide reference output in
49      verification/global_ocean.90x40x15/results_ad_nlfs
50    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
51      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
52      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
53      with SEAICE_CGRID defined.
54    o move calendarDumps from "data" to "data.cal" and clean-up the code
55      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
56    o add useEXF & useCAL flags (for now, set in hard-coded way)
57    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
58      (were missing in NH mode, and wrong in quasihydrostatic mode).
59      waiting for Chris updated version of calc_gw to add those CALLs.
60    o fix bug in quasihydrostatic S/R ;
61      add a test for this option: global_ocean.90x40x15.qshyd
62    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
63      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
64    o add on/off flag useOffLine for package OFFLINE
65    o seaice:
66      - modify advection so that it works also on the C-grid
67      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
68        problem in multi-tile runs with C-grid
69      - add flags for clipping ice velocities and/or masking solver forcing
70      - fix drag (ocean on ice) formulation and a bug that caused noise in the
71        C-grid solver
72      - added a few comments to seaice_diffusion.F
73      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
74        are now exclusive)
75      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
76        required re-ordering the code a little:
77       + make DAIRN global variable (defined in SEAICE)
78       + move computation of the viscosities eta and zeta into a new separate
79         routine (because I need to recompute them in seaice_ocean_stress.F)
80    
81    checkpoint58b_post
82    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
83      update output.txt of exp. aim.5l_cs.thSI
84    o various mnc cleanups and improvements:
85      + shrink lookup tables by factor of ~4
86      + better error reporting when running out of lookup space
87      + able to handle longer path/file names (up to 500 chars)
88    o adjoint:
89      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
90      - TBD: "hidden" mom_vecinv recomp. in dynamics
91    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
92     (allow to differentiate between forcing components using new integer flags:
93      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
94     and add new flag to put Dissipation tendency out of Adams-Bashforth.
95    o ecco
96      - enable trend removal from SSH anomaly obs.
97    o adjoint
98      - a fix for PmEpR when #undef EXACT_CONSERV
99      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
100      - try to fix "hidden" recomp. in forward_step for NLFS
101        (NLFS seems broken sometimes after I checked it in)
102    o seaice:
103     - add c-grid version of the dynamic solver:
104       + three new routines that are the c-grid substitute lsr, dynsolver
105         and ostres
106       + put a few fields that were local to dynsolver into global common
107         blocks, so that I can move the computation of stresses etc into
108         seaice_lsr (saves coding but may break the adjoint).
109     - replace more hardwired parameters by runtime parameters
110     - add ice masks that mask the rhs of the implicit solvers where there
111       is no ice (commented out in seaice_dynsolver, because i am not sure
112       if this works properly), eventually this should replace the clipping
113       of ice velocities in seaice_dynsolver to +/-40cm/s.
114    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
115      include it only where its needed
116    o move balancing of fluxes before the call of external_forcing_surf
117    o seaice:
118      - correct units of turning angles (now they are really in degrees)
119      - move computation of GWATX/Y out of main routine into dynsolver
120      - initialize GWATX/Y in seaice_init
121    o Apply mask on Fresh-Water flux (needed for SSH forcing).
122      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
123    o seaice: add runtime flags for turning angles (default to zero)
124    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
125      and trend from exf forcing and ctrl control adjustments
126    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
127      (since checkpoint57x_post)
128    o change the default rotation period to 86164.s = the Earth rotation
129    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
130      and based on a reference stratification. Tested within hs94.cs-32x32x5.
131    o seaice advection: add code for choosing between the default (2nd order
132      central differences) and multiDim advection schemes provided by
133      pkg/generic_advdiff
134    o seaice:
135      - removed all references to SEAICE_GRID.h fields from
136        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
137        (cubed-sphere configuration will change a little)
138      - grid computations in seaice_init are obsolete now.
139      - cleaned up code a little so that is easier to read (hopefully).
140      - added new (better?) discretizations of default advection and diffusion
141        (turn on with SEAICEuseFluxForm)
142      - replace 1 in 3d global fields by kSurface in growth.F
143      
144    checkpoint58a_post
145    o seaice:
146      - bug fix in advect.F
147    o shelfice:
148      - separate shelfice load anomaly from pload (breaks with time
149        dependent forcing), => introduce constant field shelficeLoadAnomaly.
150        Its default is 0., but it may be computed more cleverly from (unknown)
151        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
152        done offline. A good approximation of the pressure load anomaly is
153        necessary to avoid large initial adjustment processes underneath
154        deep-reaching shelfice.
155      - small fix in ISOMIP shelfice_thermodynamics
156      - add more sophisticated thermodynamics of Hellmer (1989), this is
157        now the default
158      - give a few constants more intuitive names
159    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
160      if bulk formulae are used in long integration (especially EmPmR). Turn
161      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
162      if balancePrintMean, the imbalance that is substracted is printed to
163      STDOUT.
164    o fix bug (typo) in obcs_apply_eta.F
165    o add a new package shelfice which enables us to model the circulation
166      underneath shelf-ice with draughts of hundreds of meters.
167     - works
168     - to do: + include improved thermodynamics
169              + check whether kSurfC (from model/inc/SURFACE.h) can be used
170                instead of new field kTopC
171              + can we use topoFile, Ro_surf and existing code in ini_depth.F
172                instead of new field R_shelfIce and new code in ini_depth.F
173                and ini_mask_etc.F?
174              + adjust vertical mixing schemes?
175    o seaice pkg:
176     - add a cpp-flag to include a simple formula for a salinity dependent
177       freezing point of sea water at the surface
178     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
179       meridional stresses are now different (and hopefully correct)
180    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
181       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
182       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
183    o pkg/diagnostics: add options and parameters for regional-statistics
184       diagnostics ; define regions by reading a region-mask from a file
185       (might add other options later)
186    o pkg/bulk_force:
187     - add option and parameters to use AIM surface-flux formulae.
188     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
189       others forcing fields (defined in PARM05, parameter file "data") are loaded
190       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
191     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
192     - use the right EXCH call for uwind,vwind (to work on CS-grid).
193     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
194       and parameters (note: calcWindStress replaces .NOT.readwindstress).
195     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
196    
197    checkpoint58
198    o add "--embed-source" option to genmake2 which, when the supporting
199      tools can be compiled (as determined by genmake2) will turn on the
200      embed_files package which then embeds the entire MITgcm source code
201      (*.[fFhc] + Makefile) used for the build within the executable
202      - requested by CNH but off by default
203      - adds a paltry <9MB to the mitgcmuv executable in most cases
204      - only writes the output when useEMBEDSRC in eedata is true
205    o clean up 3-dim. relaxation codes:
206      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
207      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
208      * Thanks to Tom Haine for testing!
209    
210    checkpoint57z_post
211    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
212      affects output (@ truncation level) of exp. plume_on_slope ; updated.
213    o fix the pickup behavior for obcs in combination with ptracers
214    o fix a bug in ptracers_external_fields_load
215    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
216      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
217    o transfered surface NH pressure to eta field (if exactConserv).
218    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
219         and update lab_sea output.txt file.
220    o completing 3-dim. relaxation code: additional term
221         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
222      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
223      * At compile time, in "EXF_OPTIONS.h" set
224          #define  ALLOW_CLIMTEMP_RELAXATION
225          #define  ALLOW_CLIMSALT_RELAXATION
226      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
227          tauThetaClimRelax3Dim = 15552000.0,
228          tauSaltClimRelax3Dim  = 15552000.0,
229      * 3 cases:
230          1) Use a constant-in-time 3-dim. field
231          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
232          3) Real-time relax. to time-evolving prescribed field
233    o Adding Laplacian-type smoothness constraint on
234      initial and boundary (forcing) controls (ic, bc)
235      * enable at compile-time via
236        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
237      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
238      * Absolute scale somewhat unclear so far
239      * no area weighting was included since no other cost term does so far
240    
241    checkpoint57y_post
242    First step for a NLFS adjoint
243    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
244    o new init. routines for calc_r_star, calc_surf_dr
245    o still need to deal with ini_masks_etc
246    o testreport seemed happy
247    checkpoint57y_pre
248    
249    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
250    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
251    o add new offset feature to offline pkg (plus minor cleanup)
252    o cfc fixes for final year of integration
253    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
254      be in GCHEM_OPTIONS).
255    
256    checkpoint57x_post
257    o fix testreport Pb in multiple test experiment.
258    o cleanup our namelist syntax in verification:
259      - make it more F95 standards compliant (some work still needed)
260      - allows the vast majority of our tests to work with gfortran
261    o Non-Hydrostatic:
262     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
263     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
264    o Allow to apply AB on T,S rather than on AB(gT,gS):
265     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
266     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
267       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
268     - need a "clever" read_pickup to restart from the other AB formulation
269    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
270    o remove some unused variables (reduces number of compiler warnings)
271    o adjoint
272      * Disable useVariableViscosity for adjoint for time being
273        (there are a number of extensive recomputations)
274      * Initialize certain variables needed for adjoint
275    
276    checkpoint57w_post
277    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
278                 fix the singleCpuIO RS version of MDSWRITEFIELD
279       and add a WARNING if using globalFiles=T with multi-processors.
280    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
281      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
282    o tracer advection scheme:
283      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
284       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
285       was not very convenient).
286      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
287       (further tests needed for the implicit DST & Flux-Limiter schemes).
288    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
289      and sRef for convenience, handy, when you want to initialize
290      ptracers in a large domain with a constant non-zero value. Also,
291      untangle ptracers_init.F a little.
292    
293    checkpoint57v_post
294    o change dome exp. to use variable viscosity in side-drag terms.
295    o remove all the files from the cfc_offline test since they are now
296      incorporated into tutorial_cfc_offline which has been producing
297      identical results for a few days of testing
298    o add new parameter: sideDragFactor to enable half-slip-side BC
299      and change side-drag S/R to use viscosity from mom_calc_visc
300      (can switch back by setting sideDragFactor=0.); affects results at
301      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
302       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
303    o vorticity & strain are now computed without masking, to account for
304      no-slip-side BC in variable viscosity calculation ; mask is applied
305      anyway later on, before computing advection/coriolis terms.
306    o modify exp4 to test new obcs support for reading from external files
307      and for passive tracers
308    o fix behavior of ptracers_monitor when monitor output is written to a
309      netcdf-file; still not independent of monitor.F (writes in the same
310      file).
311    o change default value of tRef (put a uniform, meaningful value for ocean
312      & atmos) and initialize sRef (was missing, as Martin mentioned).
313    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
314      to be proportional to enstrophy dissipation length.  Thus,
315       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
316      This is now consistent with Smagorinsky and with the manual.
317    
318    checkpoint57u_post
319    o OBCS and PTRACERS: add open boundary support for passive tracers
320      - either use homogenous (pseudo) v.Neumann conditions or prescribe
321        OB-values from file; this is not different from the way theta and salinity
322        are treated
323      - however, Orlanski-radiation conditions are not supported, and the model
324        will stop if you use pTracers and Orlanski at the same time.
325      - beefed up the rountine obcs_external_fields_load: now only those open
326        boundary values are overwritten with values from files for which there
327        are really files, otherwise the OB-fields remain untouched. This makes
328        it possible to use different OBs at different ends of the domain (as
329        with EXF)
330    o reduce number of exch calls in shap_filt (s2).
331    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
332      truncation level) 4/5 MLAdjust test results (11&12 digits match).
333    
334    checkpoint57t_post
335    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
336    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
337      same truncation, independent of the face number: affects affects several
338      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
339    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
340      note that biharmonic viscosity + no-slip was not tested in any experiment.
341    o fix bug in non-linear free-surf side-drag ; generate new output for
342      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
343    o make mnc honor the writeBinaryPrec flag for most kinds of output
344    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
345    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
346      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
347    o add brackets in multi-terms sum to get same truncation, independent of
348      the face number (manage to get exactly same value of gU,gV at the cs-edge)
349      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
350    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
351      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
352      a maximum grid-scale Reynolds number.  Also, changes all length calculations
353      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
354      Suggested values of viscosity parameters found in mom_calc_visc.
355      Many new viscosity diagnostics available.
356    
357    checkpoint57s_post
358    o Add clearing-house for viscosity calculations, mom_calc_visc and
359      correct numerous bugs in LeithD and Smagorinsky discretizations.  
360      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
361      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
362      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
363      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
364      The Strain-Tension form is now called with useStrainTensonVisc=.true.
365      ViscAhStrain and viscAhTension are now retired.
366    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
367    o In response to JMC's bug report, genmake2 now ignores any soft-links
368      that it finds in the *current* directory when searching for files.
369      Soft-links found in any other source directories will still work as
370      they did before.
371    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
372      a C routine to unlimit the stack size
373    o mnc-ify pkg/aim snapshot vars
374    o mnc-ify pkg/land as requested by Daniel
375    o various changes to mnc including:
376      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
377      - output can now be grouped so that all files within a group
378          change the ITER portion of their names in lock-step together
379      - can now read ("global") PER-FACE (in addition to PER-TILE) files
380          and works with both EXCH1 and EXCH2 (but needs more testing)
381      - writing works for all verification test cases w/ g77 on Linux
382    
383    checkpoint57r_post
384    o make MNC variable initialization happen earlier
385    o add diagnostics for (almost) each term of the momentum Eq.
386    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
387    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
388    o remove MINIMAL_TAVE_OUTPUT option ;
389      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
390    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
391      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
392    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
393    o add time-dependent SST, SSS control
394    o cost terms in ecco/ modularized (new cost_generic.F)
395    o cost_averages routines are modularized (new cost_averagesgeneric.F)
396    o new infrastructure for seaice model vs. obs misfits in seaice/
397      * driver from the_main_loop.F is seaice_cost_driver.F
398      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
399      * gradient check in Exp. 6a of natl_box_adjoint/
400    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
401      (see README file)
402    
403    checkpoint57q_post
404    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
405    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
406      - bug was reported by Jean-Michel and Ian Fenty
407    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
408      update exp. cpl_aim+ocn output.
409    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
410      Needed for high-res. runs with large global files
411      to be able to limit tapelev size
412    o Changed some tests for adjoint:
413      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
414      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
415      * global_ocean.90x40x15/ back to default 3-level checkpointing
416    o Modifications to enable scripted COMMON to MODULE conversion
417      * verification/OpenAD/code/ has necessary scripts and description;
418      * converts, compiles and runs successfully;
419    
420    checkpoint57p_post
421    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
422    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
423      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
424    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
425    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
426      (was already the case for dissipation with mom_vecinv,
427       and also the case for grad.PhiHyd when staggered-timeStep)
428      This will allow to put dissipation out-off the AB time-stepping.
429     Unfortunately, affects truncation error. Update output of exp. that "fails"
430      (cg2d matching number) and leave the others for later: front_relax(10),
431      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
432      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
433    
434    checkpoint57o_post
435    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
436      (2) its ready to be documented during the 20050801 DocFest
437    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
438      for ideal_2D_oce and lab_sea on linux_ia32_g77
439    o set to #undef CTRL_SET_OLD_MAXCVARS_30
440      in global1x1_tot/code_seaice_adj to access indices 32, 33
441      (worth another tag)
442    
443    checkpoint57n_post
444    o adding precip control xx_precip 32
445    o adding swflux control xx_swflux 33
446    o Replacing 10 forcing penalty cost routines by 1 generic.
447    o Implementing partitioning in time-mean and variable adjustment
448      for atmos. state.
449    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
450    o in natl_box_adjoint:
451      * updated exp 1 to 10
452        (but does not have time-mean vs. variable split results yet)
453    o updated global1x1/*_seaice_adj/
454      to incorporate latest changes
455    o enable useSingleCpuIO for mdsio vector routines
456      (applies in particular to tapelev I/O)
457    o removed inefficient K-loop in all active_file*control*.F
458    
459    checkpoint57m_post
460    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
461      and advect_cs (use EXCH-2 and standard cs-32 grid files).
462    o pkg/exch2: filling of face-corner halo regions is optional
463      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
464    
465    checkpoint57l_post
466     tag before updating tutorials (pre-release-2)
467    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
468       for output and interpolation of input fields onto model grid)
469    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
470       Affects results of exp. rotating_tank ; update output.txt.
471    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
472          and taking the square quantity and/or using a fraction-weight field.
473    o fix aim_diagnostics_init.F mate numbers.
474    o add mnc output capability to diagnostics/diagstat and update
475      our cvsignore files for the ACSII output generated
476    
477    checkpoint57k_post
478    o lab_sea now uses diagnostics package and provides a suite of
479      new EXF diagnostics output.
480    
481    checkpoint57j_post
482    o exf
483      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
484        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
485        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
486      * extended diagnostics output
487        - now includes all EXF variables
488        - hs, hl moved to common block
489        - separate S/R for diagnostics, called after ctrl vector is added
490        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
491        - EXFqnet contains true Qnet (i.e. includes qsw)
492      * updated verif. lab_sea, global_with_exf
493      * Rearranging hflux (exf_mapfields -> exf_getforcing)
494        to ensure that diagnostics sees a true EXFqnet
495    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
496    o diagnostics pkg: change pointers so that 1 diagnostic can be used
497      several times with different frequencies.
498    o mnc-ify the thsice package as requested by Daniel Enderton
499      - the monitor--MNC output needs work
500      - many attributes need to be added (most are currently blank)
501    o mnc-ify theaim_v23 package as requested by Daniel Enderton
502      - many attributes need to be added (most are currently blank)
503    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
504    o add Sadourny like discretization to the 4th.O vorticity advection scheme
505    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
506      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
507         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
508    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
509     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
510    
511    checkpoint57i_post
512    o Diagnostics package was changed: diagnostic allocation is now deactivated
513      by setting an empty file name in the namelist (used to be by setting 0 frequency)
514    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
515      add 1rst Order upwind vertical Shear.
516    o add a quick fix for A/B checkpointing in OFFLINE mode
517    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
518      end-run around the C/Fortran linking horror in eesup/src/timers.F
519    o added pkg/runclock: allows user to terminate run based on wall clock
520    o added non-hydrostatic scaling parameter: nh_am2
521    o pkg/my82: futile attempt to make results compiler-independent by adding
522      some "_d 0", etc. no effect.
523    o for mnc output, fill the 'T' coordinate var with myTime and create a
524      separate 'iter' variable for iteration count
525    o pkg/diagnostics:
526      add new capability: output of Global/Regional & per-level statistics ;
527      tested against monitor output (including land & thSIce) on various exp.
528    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
529    
530    checkpoint57h_done
531      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
532      data.diagnostics, data.gchem, data.ptracers) is done.
533    
534    o pkg/diagnostics: prepare for Global/Regional statistics.
535      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
536    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
537      and rename it: DIFFERENT_MULTIPLE
538    
539    checkpoint57h_post
540    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
541    o pkg/diagnostics: change output frequency, now in seconds (instead
542      of Nb of iterations). This requires to change data.diagnostics.
543    checkpoint57h_pre
544    
545    o in mnc, let the user create the output dir if both mnc_outdir_date
546      and mnc_outdir_num are false
547    o add fflags() to pkg/diagnostics which allows one to specify, on a
548      per-file basis, the file precision [default behavior is unchanged]
549    o added diagnostics to pkg/kpp, including computation of mixed layer
550      depth based on a temperature/density criterion
551    o updated verification/natl_box to test the new pkg/kpp diagnostics
552    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
553    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
554    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
555      not mnc -- this mistake was found by JMC and is now corrected
556    
557    checkpoint57g_post
558    o add Adams-Bashforth 3rd Order time stepping:
559      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
560      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
561    checkpoint57g_pre
562    
563    o make lambda[Theta,Salt]ClimRelax spatially varying
564      (default remains spatially uniform constant based on tau)
565    o added new control variables
566      * init. uVel, vVel, etanN
567      * lambda[Theta,Salt]ClimRelax
568    o separate masks used for ctrl_pack/unpack 'from write_grid' output
569      (suggested by G. Forget)
570    
571    checkpoint57f_post
572    o add parameter "baseTime" = model base time = time at iteration zero
573      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
574      account for baseTime shift
575    o move Coriolis arrays from PARAMS.h to GRID.h
576    checkpoint57f_pre
577    
578    o mnc-ifying the seaice package
579    o introduced an alternative length scale calculation for use in the limiting
580      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
581    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
582    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
583      as well as grad(vort3).  Made it compatible with both approximate form
584      for the cubed sphere and full form of these gradients.  Added flag
585      useFullLeith to select between approximate and full form.  
586    o add "d0" in getcon.F to reduce differences between compilers/platforms
587      update output.txt of exp. fizhi-gridalt-hs
588    o change port_rand funtion to allow to set the seed.
589    o fix obscure MNC bug involving conversion between reals and integers
590      - it caused no problems with certain (eg. gcc, ifc) compilers but the
591        new version is now more standards-compliant
592    o adjoint-related modifications
593      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
594      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
595      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
596    
597    checkpoint57e_post
598    o Adding eddy stress controls a la Ferreira et al.
599    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
600    
601    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
602      update output.txt of exp. fizhi-gridalt-hs
603    o add more "Z" dimensions and associated coordinate vars to MNC
604    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
605    o parameter calendarDumps: when set, approximate months (30-31 days) and years
606      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
607      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
608      months and years.  Requires pkg/cal.
609    o diagnostics: add pickup functionality
610      - off by default for backwards compatibility
611      - current version only uses MDSIO -- MNC will be added
612    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
613    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
614    
615    checkpoint57d_post
616    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
617    o modify verification/ideal_2D_oce so that it tests the creation of mnc
618      output from the diagnostics package
619    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
620    o make genmake2 more portable by using ".$FS" instead of ".f" for more
621      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
622    o add coordinate variables to the MNC output from the diagnostics package
623    o change MNC-flags default value: true when useMNC=TRUE
624    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
625      the ability (off by default) to read the grid information using MNC
626    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
627    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
628    o do snap-shot diagnostics at the middle of the time-interval (instead of
629      at the end).
630    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
631      new test for AIM with thSIce + slab-ocean
632    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
633    o move state variable diagnostics to the beginning of the time step ;
634      (note: still needs some work specially for snap-shot diagnostics)
635      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
636    
637    checkpoint57c_post
638    o Change testing option (-ieee) to get closer agreement between g77 & ifort
639    o generate new output.txt files on faulks with g77 & the new -ieee option
640    checkpoint57c_pre
641    
642    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
643      update output.txt of exp. global_ocean.90x40x15
644    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
645      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
646    o add saltFlux(+File) forcing capability with periodicExternalForcing
647    o allow to use pkg diagnostics for GM-Redi & ThSIce output
648    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
649    o improvements for the MNC output from DIAGNOSTICS:
650      - correct handling of the unlimitied dimension
651      - all dims now have associated coordinate variables
652      - variables located at U, V, and Corner ("Z") points are now written
653        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
654        *all* data points are output
655    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
656    o added pkg/seaice/seaice_monitor.F
657    o mdsio_readfield.F can now read files visible only to master MPI process.
658    o pkg/seaice: some test code for ice-modified ocean stress
659    o exf_getffields interpolation defaults to bilinear for all scalar forcing
660      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
661      spurious negative numbers for precipitation and humidity.  Will cause
662      some small numerical differences for integrations using pkg/exf/exf_interp.F.
663    o pkg/ctrl/
664      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
665        May be enabled via doPackDiag
666      *  introduce z-scaling of
667         + gradient (doZscalePack) and
668         + control (doZscaleUnpack)
669    o pkg/mdsio/
670      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
671      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
672    
673    checkpoint57b_post
674    o simplify options in diagnostics_fill arguments (remove weird combinations)
675    o fix MNC coordinate variables so that they now contain per-face index
676      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
677      general, EXCH2 grids are only aligned to a "local" coordinate system
678    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
679    o Implement instantaneous output within pkg diagnostics:
680      setting a negative frequency in data.diagnostics produces
681     "snap-shot" output (as opposed to time-average if freq > 0)
682    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
683      NOTE: change ptracer diagnostics name: use 2 characters to work with
684            more than 9 tracers. Add also diagnostics of advect & diffus flux.
685    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
686      becomes the coordinate variable for the 'T' dimension
687    o add CF-style coordinate variables to MNC
688      - just a first cut:  numbers are meaningless on the cubesphere and
689        missing along the T axis but otherwise it works!
690    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
691    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
692    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
693      this is based directly on what the model compute, so that the content of
694      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
695    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
696    o clean up build options files for SunOS, in particular
697      - remove -traditional from xmakedepend
698      - change -xarch=v9 to -xarch=native for f77
699      - restore use of make (not gmake)
700      - add CC=gcc if using g77
701    o changes per discussion of AM, JMC, & EH3 today:
702      - move redundant "grid" variables out of "state" -- in preparation of
703        creating proper CF-style coordinate variables and in recognition
704        that any/all grid variables can be easily copied (eg. w/NCO) from
705        the grid files into any of the other NetCDF files
706      - *always* output grid variables with MDSIO (this will eventually be
707        changed)
708      - output MNC grid file if useMNC is true
709    o every instance of _END_MASTER() has been found and replaced with
710      _END_MASTER( myThid ) in order to satisfy certain picky Sun
711      preprocessors
712    o re-arrange diagnostics pkg initialisation:
713     - allow each package to extend the available diagnostics list
714     - add some checking and fix small problems (multi-threaded, ...)
715     - new S/R diagnostics_fill (replace fill_diagnostics):
716       look through the short list of active diag. (instead of the long list)
717       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
718    
719    checkpoint57a_post
720    o this set of changes restores TAMC compatibility
721      tested for global_ocean.90x40x15 adjoint on trough
722      (what a pain)
723    
724    checkpoint57a_pre
725    o some modifs in tools/build_options for sunos
726    o call ctrl_pack for ctrl at end for optimcycle=0
727    
728    checkpoint57
729    o add horizontal bi-harmonic viscosity for vertical velocity
730      - new parameter viscA4W (defaults to viscA4)
731      - affects only non-hydrostatic code
732      - to be done: no-slip lateral boundary conditions
733    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
734    o implement Implicit Vertical advection for pTracers
735    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
736      (implemented also for implicit vertical diffusion & advection)
737    o OBCS: extend application of tracer open boundary conditions
738      to a strip beyond the boundary of width Olx/Oly
739    o add call monitor to TAF set of required calls (flow directives)
740      and include in natl_box_adjoint
741    o untangle a few ifdefs related to cost, ctrl, autodiff
742      untangel a few ALLOW_ECCO_OPTIMIZATION
743    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
744      (theta2, salt2 in ecco_cost_weights)
745    
746    checkpoint56c_post
747    o OBCS as control variables
748      - update ctrl_ad_diff.list, obcs_ad_diff.list
749      - remove balance of obcs controls from default
750      - fix index bug nobcs in ctrl_init
751      - fix dummy fields filen in ctrl_pack
752      - add dummy weights for obcs
753    o lsopt: comment out fort.94 output
754    o optim:
755      - remove unnecessary header files
756      - adjusted namelists
757      - add xerbla.F to Makefile
758    o exf:
759      - multiple modifications of exf_check_range
760      - unit change in exf_init_runoff from [m/year] to [m/s]
761    o mdsio:
762      - i/o-vector change debugLevel from debLevA to debLevB
763    
764    checkpoint56b_post
765    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
766      is called from DO_THE_MODEL_IO
767      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
768      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
769      - clean up PTRACERS_WRITE_TIMEAVE a little
770    o add another verification experiment that tests both the cfc-pkg and
771      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
772      reactive tendencies treated inline with regular timestepping
773    o testreport previously did a lousy job of comparing small numbers, so
774      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
775      implemented in the little c-progam tmp_cmpnum.c which is embedded in
776      testreport.
777    o ptracers_monitor: bug fix for MPI
778    
779    checkpoint56a_post
780    o GCHEM: finish reorganizating the package
781      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
782        (introduces another 3D-array for each passive tracer, but only if
783        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
784        gchemTendency is not needed because the timestep is done separately)
785      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
786      - GCHEM is now---more or less cleanly---separate from PTRACERS
787      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
788        so clear to me how that should be done in a general way.
789    o CFC: improve formatting of output in CFC_ATMOS
790    o PTRACERS:
791      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
792        that ALL experiments with ptracers enable can be checked. This makes
793        GCHEM_MONITOR obsolete.
794      - include a runtime parameter PTRACERS_monitorFreq that defaults to
795        monitorFreq
796      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
797    o add PTRACERS (PTR0[1-5]) to testreport output
798    o exf_check_range:
799      * default changed to .TRUE.
800      * will check values for niter0 if debLevA, every timestep if debLevB
801      * STOP in exf_check_range if 'out of range'
802      * range chosen generous to allow for potential extema
803      TBD: a version with stricter range
804           permitted range would be runtime parameters
805    o GMredi:
806      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
807      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
808      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
809    o GCHEM:
810      - move call to GCHEM_FORCING_SEP, so that it is now called before
811        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
812      - introduced a useGCHEM runtime flag and applied it everywhere.
813      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
814        this flag is now only visible within GCHEM-pkg routines.
815      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
816        be replaced by a 3D array that is computed before thermodynamics; for
817        this, the tracer ID iTracer had to be included into the parameter list
818        of ptracers_forcing
819      - set up forward_step to call gchem_forcing, that will replace
820        gchem_forcing_int in ptracers_forcing
821      - cleaning up
822    o small cleaning of exch2: remove files that are also in eesupp/src
823    
824    checkpoint56
825    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
826    o mnc: cleanup "full" files--fixes out-of-memory problem
827    o ECCO-GODAE
828      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
829      * fully merged and updated from SIO code
830        windstress sign change affects
831        - exf_inscal_[u/v]stress
832        - sign of xx_tau[u/v] adjustments
833        - signs in cost_scat
834      * ctrl_get_gen: avoid update of tau[u/v] for first few days
835      * natl_box_adjoint updated and compressed
836      * 2-level checkpoint switch added
837        (tested in EXP. 1 of natl_box_adjoint)
838      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
839    o SVD
840      * first complete, non-hacked version for SVD calculations
841      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
842        performed via direct access files admtlm_vector.it????
843        (via ctrl_[un]pack)
844      * optimcycle is used for ARPACK iteration counter
845        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
846      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
847        and add linear transforms where necessary
848      * controls are initial/final SST, SSS (can be extended; need to check
849        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
850    o mdsio: filename info to both stderr, stdout
851    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
852      from sign change
853    
854    checkpoint55j_post
855    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
856      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
857    o add consistent build directories and .cvsignore files to verification
858    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
859    o make all subroutines 30 or less characters in length for certain older
860      compilers to work (a thorough search only turns up two routines in
861      pkg/ptracers)
862    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
863      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
864    
865    checkpoint55i_post
866    o change arrays for total vertical diffusivity (2.D if explicit,
867      3.D if implicit) ; each ptracer uses its own background value.
868    o added mnc/NetCDF output capability to ocn_compon_interf
869      - added bits to verification/cpl_aim+ocn so that it can run on
870        ITRDA and other clusters without the mpirun "-wd" option
871    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
872      configuration
873    o give MNC the ability to create additional files rather than
874      exceeding a specified file size limit "MNC_MAX_FILESIZE"
875      - the default is just less than 2GB which is a practical limit
876        on many systems
877    o Compute the non-local term using either KPP vertical diffusivity (=default)
878       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
879    
880    checkpoint55h_post
881    o add verification test "vermix"
882    o remove all the *_ioinc flags and replace with the single global
883      outputTypesInclusive flag
884    o allow to set a vertical profile of vertical diffusivity for T & S
885    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
886    o useMNC moved from data.mnc to data.pkg
887    
888    checkpoint55g_post
889    o Renaming carbon AD experiments to comply with testreport conventions
890    o Updating adjoint of Held-Suarez hs94.1x64x5
891    o Fixing directives for non-ECCO forward_step, after ECCO directives
892      have been fixed to avoid recomp. of do_oceanic_phys
893      Works well for global_ocean.90x40x15,
894      but recomp. issue remains for carbon
895    o Updating adjoint output for natl_box_adjoint after
896      pkg/ecco has been modified (see taga c55d_post)
897    
898    checkpoint55f_post
899    o rename to timeave_init_fixed
900    
901    checkpoint55e_post
902    o some delicate re-shuffle of store directives to avoid one
903      extra call of do_oceanic_physics
904      affects ecco_the_main_loop.F, do_oceanic_physics.F
905      checkpoint_lev1_directives.h
906    o NB: this may break global_ocean adjoint temporarily,
907      but it is clear how to fix it. Will do later, need this now.
908    
909    checkpoint55d_post
910    o ECCO specific cost function terms (up-to-date with 1x1 runs)
911    o ecco_cost_weights is modified to 1x1 runs
912    o modifs to allow observations to be read in as
913      single file or yearly files
914    o enable to read exf forcing fields as either
915      single file or yearly files (flag useExfYearlyFields)
916    checkpoint55d_pre
917    
918    o switch between 2-level and 3-level checkpointing
919    o add ability of MNC to write local and "partial" (eg. 2D slices where
920      the full 3D field is never actually stored) arrays to NetCDF files
921      with the correct (that is, the complete multi-dimensional) set of
922      array indicies
923      - used in mom_vecinv() to write the diagFreq output
924      - tested (demonstrated) in verification/aim.5l_cs
925    o further mnc-ification
926      - add verification/lab_sea to the list with mnc setups
927      - fix undefined mnc v-names in cd_code
928      - add kpp to mnc output (both snapshot and timeave)
929    o non-hydrostatic code
930      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
931        in calc_gw.F
932      - defaults to viscAh
933      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
934        friction or Leith) in non-hydrostatic mode, as long as there is
935        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
936    o pkg/cost
937      extend simple cost functions to treat time mean quantities
938      (T,U,V) via cost_accumulate_state from cost_tile
939    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
940        be 2 times larger than the minimum size the advection scheme requires.
941        now get a perfect conservation of salt in advect_cs test-exp (updated)
942    o GGL90 (Gaspar's TKE mixed layer)
943      - add horizontal diffusion of TKE, requires exchanges in
944        do_fields_blocking_exchanges, horizontal diffusivity is zero by
945        default. In OPA there is no horizontal diffusion of TKE but the
946        mixing coefficients are computed from a horizontal average of TKE of
947        6 points or so. I think that diffusion has a little more physical
948        justification.
949      - clean up ggl90_calc in the hope of reducing memory usage (this hope
950        was in vain)
951      - mask tke-variable in ggl90_init
952    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
953    o fix biharmonic diffusion on CS-grid.
954    o more obcs stuff
955      - added obcs_external_fields_load as an alternative to the EXF-pkg option
956        for reading boundary values. This routine is called from
957        obcs_prescribe_read
958      - updated obcs_check
959      - changed sponge layer relaxation parameter units for days to seconds
960      - turned off sponge layer by default
961      - changed argument list of OBCS_CALC to myTime+deltaTclock
962      - fixed about 35 bugs in obcs_external_fields_load
963    
964    checkpoint55c_post
965    o obcs stuff
966      - new runtime flags useOBCSprescribe, useOBCSbalance
967      - re-arranged obcs_calc
968      - moved exf_getobcs to obcs_prescibe_read
969        obcs_prescibe_read is called after ORLANSKI stuff
970        and independent of it (executable can contain all).
971      - updated obcs_check
972      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
973        These may be necessary only if tangential velocities are
974        prescribed at OB, not sure, needs testing.
975    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
976      which simplifies the calls and passes the ifc check-bounds test
977    
978    checkpoint55b_post
979    o add a 2D scalar, Z location, exchange_2 routine.
980    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
981      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
982      affects advect_cs results (for the wrong reason): update output.txt
983    o use a more standard discretization for biharmonic viscosity ;
984     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
985      affects results of dome set-up: update output.txt
986    o fix gad_advection.F (CubedSphere part), back to version 1.23
987    o fix bug in mom_vi_del2uv.F (CubedSphere part).
988    
989    checkpoint55a_post
990    o merged code to
991      * prescribe/read time-dependent open boundaries
992        (works in conjunction with exf, cal)
993      * sponge layer code for open boundaries
994      * each boundary N/S/E/W now has its own CPP option
995        (healthy for the adjoint)
996    
997    checkpoint55
998    o up-to-date adjoint of previous breaks
999      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1000      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1001      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1002      - carbon: * remove tr1-related adjoint verification
1003                * add ptracer as control variable
1004    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1005      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1006    
1007    checkpoint54f_post
1008    o in verification/carbin/ remove experiment related to
1009      ALLOW_PASSIVE_TRACER (array tr1 etc)
1010      code_ad/ input_ad/ results_ad
1011    
1012    o add two new packages
1013      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1014        + subject to optimization (memory)
1015      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1016        + subject to reordering (many GOTOs in the original code)
1017        + so far opps is called for every (i,j) point, and then operates in
1018          the vertical; one may want to reorder the scheme in order operate in
1019          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1020          fields)
1021    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1022      - all verification tests compile and run with linux_ia32_g77
1023      - defaults are compatible with current input files--nothing
1024        should change if you were not previously using MNC
1025      - MNC output has been added in numerous places (eg. timeave)
1026        but there are still a few writes not yet do-able with MNC
1027        (this is in progress)
1028      - flags now allow for either/or/both use of MDSIO and MNC and
1029        documentation will soon follow
1030      - numerous small formatting cleanups for ProTeX
1031    o add version info (via BUILD_INFO.h) to MNC and stdout
1032    
1033    checkpoint54e_post
1034    o add two new packages
1035      - pp81 (Packanowski and Philander, 1981), Richardson number and
1036        stratification dependent mixing
1037      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1038      - these scheme operate in a similar manner as KPP (without ghat, of
1039        course), however there is only one diffusivity that is used for both
1040        temperature and salinity (and passive tracers)ç
1041    o add offline package
1042    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1043      provided by Stephanie Dutkiewicz
1044    o genmake2: add ability to search for C compilers and cleanup test output
1045      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1046    
1047    checkpoint54d_post
1048    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1049    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1050      leading to additional shift by 5 days each year of integration
1051       (i.e. leading to considerable offset over the years)
1052    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1053    o start with no AB and no initial filtering (staggerTimeStep):
1054      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1055    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1056      (external loading & cpl import/export stay in forward_step.F)
1057    o update coupling interface to work with new staggerTimeStep
1058    o change MDSIO ptracers_pickup.
1059    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1060    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1061    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1062    
1063    checkpoint54c_post
1064    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1065      this affects (truncation error) output.txt of test-exp:
1066       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1067    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1068    o change Qnet to always be the net heat flux, (+upward).
1069      affects (truncation error) output of natl_box exp.: updated
1070    o define the max number of passive tracers in PTRACERS_SIZE.h
1071    o start to test mnc routinely in exp0
1072    o add sea-ice loading (sIceLoad) as a new forcing field.
1073    
1074    checkpoint54b_post
1075    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1076       impressive on Altix and Opteron systems)
1077    o diagnostics can now write NetCDF files through the mnc package
1078    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1079    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1080    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1081      affects (truncation error) output of lab_sea & natl_box exp.: updated
1082    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1083    
1084    checkpoint54a_post
1085    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1086    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1087    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1088    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1089      + internal_wave (shift in writing cg2d_ini_res)
1090    checkpoint54a_pre
1091    
1092    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1093      - modified verification/lab_sea and natl_box_adjoint accordingly
1094    
1095    checkpoint54
1096    checkpoint53g_post
1097    o prepare splitting of thermodynamics: store convect.counter in common block
1098    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1099      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1100    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1101    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1102    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1103    o restore adjointability
1104    
1105    checkpoint53f_post
1106    o modifications that affect AIM experiment results (update output.txt):
1107      - no advection of S at top interface Nr (pkg/generic_advdiff)
1108      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1109    o AIM pkg:
1110      - include stability function into surf.Flux derivative relative to Tsurf
1111      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1112    
1113    checkpoint53e_post
1114    o merged cylindrical coord configuration
1115    o added rotating_tank experiment
1116    checkpoint53e_pre
1117    
1118    checkpoint53d_post
1119    o faulks upgraded: re-generate output.txt that have changed:
1120       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1121    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1122    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1123    o added Sadourny discretization of Coriolis
1124      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1125      - re-enabled use of omega3 (useAbsVorticity)
1126    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1127      vector-invariant equations
1128      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1129    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1130      hopefully without new bugs
1131      - still to do: biharmonic friction for non-hydrostatic w
1132    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1133    o regenerated output for global_ocean_ebm (using -ieee)
1134    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1135      of mom_common/
1136      - simple re-arrangement of instructions within computing loop
1137    checkpoint53d_pre
1138    
1139    checkpoint53c_post
1140    o new version of coupler for AIM+thSIce and Ocean models
1141     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1142     - land: change Evaporation of snow
1143     - aim with thSIce: fix bug in snow-precip.
1144    o changes to calc_gw.F
1145     - bug fix for w^2 term near the bottom boundary
1146     - (hopefully) improve the lateral slip boundary condtions for use with
1147        partial/looped cells
1148      - because the bug fix changes two verification experiments anyway (exp5
1149        and plume on slope), change the lateral boundary condition from half slip
1150        to the value of no_slip_sides
1151    o ebm package wasnt quite up to the parallel task. Fixed that.
1152    o Adjoint of EBM package + verification
1153      * TLM OK
1154      * ADM not sufficient accuracy yet (needs further testing)
1155    
1156    checkpoint53b_post
1157    o Commiting new energy balance model to repository
1158      * package is pkg/ebm
1159      * verif. is verification/global_ocean_ebm
1160      * references are in ebm_driver.F
1161    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1162    C        Global thermohaline circulation. Part I:
1163    C        Sensitivity to atmospheric moisture transport.
1164    C        J. Climate 12(1), 71-82
1165    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1166    C        Global thermohaline circulation. Part II:
1167    C        Sensitivity with interactive transport.
1168    C        J. Climate 12(1), 83-91
1169    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1170    C        Destabilization of the thermohaline circulation
1171    C        by atmospheric eddy transports.
1172    C        J. Climate 7(12), 1870-1882
1173    o Will need long integration testing.
1174    checkpoint53b_pre
1175    
1176    o created pkg/mom_common in preparation for variable viscosity code
1177    o renamed and split ini_mnc_io
1178    o pkg/land: only liquid water can diffuse or run-off
1179    o AIM using land: soil wetness availability account for snow
1180    o added printMapIncludesZeros to EEPARMS namelist
1181    
1182    checkpoint53a_post
1183    o restore TAMC compatiility for exf_constants.h
1184      (no usage of _d in .h)
1185    o Additional storing in KPP in an attempt to fix
1186      TAMC problem with adjoint of KPP code.
1187      (no success...)
1188      Identical code works fine with TAF.
1189    o Fixed verification/natl_box_adjoint experiments.
1190      Initial conditions for Experiments 4 and 5 are now
1191      set to "SEAICE_initialHEFF=0", which is more reasonable,
1192      and hence gives results closer to that of Experiment 2.
1193      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1194    
1195    checkpoint53
1196    o stable checkpoint with up to date adjoint
1197      TLM tests only run for 1st grdchk at the moment. Its unclear if
1198      this is a code problem or a problem with resetting code for g_
1199      variables that is being autogenerated wrong.
1200      Otherwise:
1201       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1202       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1203         are both still in chaos following their security messes.
1204    
1205    checkpoint52n_post
1206    o various build (mostly genmake2) changes including:
1207      - ability to build/run more easily within Cygwin and MacOS X
1208      - more complicated Makefiles with a stronger dependence on Gnu Make
1209    o pkg/seaice modifications
1210      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1211        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1212        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1213      - changed proxy for geostrophic velocity and updated
1214        verification/lab_sea/results/* accordingly
1215      - removed ADI dynamic solver from pkg/seaice
1216      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1217        they caused a segmentation fault under certain circumstances
1218      - removed unused field WATR
1219    o bug fix in exf-package:
1220      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1221         now reflect that.
1222    o small fixes in the cal-package:
1223      - set reference date to first of January for the 'model'-calendar
1224      - failing of cal_CheckDate in cal_FullDate now actually results in a
1225        warning
1226    o small modifications in exf-package to increase flexibility:
1227      - change climtempfreeze from a constant to a runtime parameter that
1228        is specified in data.exf_clim (default = -1.9)
1229      - introduce runtime parameter windstressmax (default = 2.0) that is
1230        specified in data.exf
1231    o fix in pkg/thsice:
1232      - update Evap (Tsf changes) to be consistent with Latent heat flux
1233      - maintain snow precipitation unchanged (even if Tsf >=0).
1234     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1235    
1236    checkpoint52m_post
1237    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1238      this does not change any of the results, because myIter=0 in swfrac always
1239      lead to jwtype=2 (the default anyway), but the call makes little sense
1240      as a default
1241    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1242    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1243      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1244    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1245    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1246    o extending useSingleCpuIO option to work with new exch2 I/O format
1247      - old-style, missing-tile I/O is still accessible by defining CPP
1248        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1249    o monitor package can write to NetCDF files and/or STDOUT
1250    o fix re-definition bug in MNC_GRID_INIT_ALL()
1251    o doc/api_reference added
1252      - a framework for building an API Reference Manual using all
1253        the "protex" comments embedded in the code
1254      - see pkg/generic_advdiff, pkg/mnc for examples
1255    o MNC:
1256      - make myThid the last argument for all subroutines
1257      - new default for the grid files: NO halos
1258      - add useMNC and other run-time flags
1259      - separate per-file-group handling of the unlimited dimension
1260      - early initialization of MNC w/ flags read at the eeboot stage
1261        and lookup tables set in initialize_fixed
1262      - write all MNC output to a freshly-created directory
1263    o thermodynamics sea-ice (thsice) is now tested with testreport.
1264    o test exp. advect_cs: use the standard cs32 grid ; update output.
1265    o Added functionality to grdchk:
1266      pick global i,j,k position (or nearest wet) where to perform check.
1267    
1268    checkpoint52l_post
1269    o new land formulation:
1270      a) use ground enthalpy as prognostic variable to ensure exact
1271         energy conservation.
1272      b) account for water temperature and for latent heat of freezing
1273         in all processes (rain, run-off, ground storage)
1274      c) compute surface and ground temperature implicitly.
1275    o aim_v23 modification for new land model:
1276      a) Treat separately land / ocean / sea-ice surface fluxes
1277         to allow implicit computation of land & sea-ice surface temp.
1278      b) add snow precipitation.
1279    checkpoint52l_pre
1280    
1281    o fix problem (when 1 tile is empty) in min/max monitor.
1282    o fix bug in timeAve (u,vZetatave in common block)
1283    o no restoring terms under ice for pkg/seaice
1284    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1285    o bug fix for pkg/seaice pickups
1286    o change MNC call locations and add coordinate attributes
1287    o mask vorticity at the corner ; affects global_ocean.cs output
1288    o fix ini_curvilinear_grid ; test CS experiments with mpi
1289    o aim.5l_cs: modify sea-ice fraction input file ; update output
1290    o exf: Adding simple range check routine for exf fields after read
1291    
1292    checkpoint52k_post
1293    o removed top-level directory "diags"
1294      - we migrated these functions to pkg/timeave a long time ago
1295    o fixed bug introduced in pkg/monitor
1296    o accuracy ctrlprec = 32 insuffient for gradient checks using
1297      averaged fields (I/O via cost_averages)
1298      -> use ctrl.h in active_file*.F to control I/O precision.
1299    o paramter list of CALL ADTHE_MAIN_LOOP
1300    o added initial do_the_model_io to ecco
1301    o set all ...Freq to zero after cost_final
1302      taveFreq, dumpFreq, pChkptFreq
1303    o MAIN and ECCO differentiability restored
1304    
1305    checkpoint52j_post
1306    o fix nchklev in tamc.h for global_ocean...
1307    o Bringing flow and store directives up-to-date
1308    o Really weird thing!
1309      call do_the_model_io from the_main_loop with parameters
1310      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1311      TAF places a faulty re-call of initialise_varia
1312      after cost_final call which should not be there!
1313    checkpoint52j_pre
1314    
1315    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1316      error messages
1317    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1318    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1319      debug output
1320    o modfied mdsio_writefield.F to handle non-global files under exch2
1321    o update AIM Cubed-Sphere exp (aim.5l_cs):
1322      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1323    o update AIM Equatorial Channel exp:
1324      use standard aim_v23 pkg and change the SST fields to be more realistic.
1325    o globalFile now works with exch2
1326    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1327      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1328    o limit timeave output for hi-res integrations
1329    
1330    checkpoint52i_post
1331    o removed CPP_EEOPTIONS.h from verification/*/code
1332    o updated the tiling for global_ocean_pressure
1333    checkpoint52i_pre
1334    
1335    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1336      the old pkg/aim).
1337    
1338    checkpoint52h_pre
1339    o shortened offending lines in exch2_send_rx?.template
1340    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1341    o genmake2: add build & execute test for NetCDF code
1342    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1343      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1344    o added useSingleCPUIO flag to monitor.F and mon_out.F
1345    o added temporary hack for sea-ice dynamics on the cube:
1346      metric terms are ignored and it is assumed that
1347      there is no sea-ice on cube faces 1, 2, 4, and 5.
1348    
1349    checkpoint52f_post
1350    o added exch2 cube routines to pkg/exch2
1351    o modified hs94.cs-32x32x5 to use it
1352    o added new grid files to hs94.cs-32x32x5
1353    checkpoint52f_pre
1354    
1355    checkpoint52e_post
1356    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1357      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1358    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1359      to work with implicit vertical advection and AB ;
1360    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1361    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1362     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1363    checkpoint52e_pre
1364    
1365    o fix bug in impldiff when Nr=1 or Nr=2.
1366    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1367    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1368    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1369      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1370    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1371    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1372    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1373    
1374    checkpoint52d_post
1375    o re-tiled many expts to allow comparison in multi-processor mode
1376      - updated output accordingly
1377      - changed hs94.128x64x5 to use intial T from file rather than use the
1378        random number generator
1379    o add infrastructure in model routines for fizhi and gridalt packages
1380    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1381    o changes to permit hi-res, cubed-sphere, configuration
1382      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1383      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1384      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1385        of surface winds for the cube
1386      (A verification experiment, based on global_ocean.cs32x15, but with
1387       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1388       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1389       complete with example surface forcing files and matlab scripts to look
1390       at the output and compare it with that of global_ocean.cs32x15.)
1391    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1392       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1393       to conform to the common rule.
1394    o check-in the first version of the coupler + interfaces for multi-components
1395       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1396       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1397       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1398       - ocean and atmos. share the same horizontal grid (no interpolation).
1399       - exchanges between component and coupler is done in forward_step
1400    o new verification experiment, cpl_aim+ocn:
1401       coupled ocean - AIM atmosphere on cs32 grid.
1402    
1403    checkpoint52d_pre
1404    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1405    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1406    
1407    checkpoint52c_post
1408    o Fixing OPTIONS files for use of exf:
1409      - ALLOW_ECCO not needed
1410      - ECCO_CPPOPTIONS.h should not be included from
1411        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1412        as has been the case in the past
1413      - All cal/exf related options are currently set in
1414        single header file. Should remain so until we
1415        agree on a consistent new policy.
1416    o Removed all CPP options for cal package.
1417      cal has no more CPP options.
1418    o modified STOREs in GAD_ADVECTION
1419    o corrected key comp. for passkey
1420    
1421    checkpoint52b_post
1422    o new version: "thsice" of thermodynamic sea-ice pkg:
1423     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1424     - modify fluxes but do not change theta directly;
1425     - light cleaning of bulk_force pkg (still needed with thsice).
1426     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1427       + output_thsice.txt to test thsice & bulk_force pkgs.
1428    o put back grid & coriolis monitor output.
1429    checkpoint52b_pre
1430    
1431    o call "do_the_model_io" at the beginning (=> dump initial state)
1432    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1433    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1434      (need info on NUMBER_OF_PTRACERS)
1435    o missing PTRACERS headers in some routines
1436    o default tamc.h in pkg/autodiff supposed to crash
1437      to ensure proper customization
1438    
1439    checkpoint52a_post
1440    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1441      - moved surfaceTendencyTice from pkg/seaice to main code
1442      - subroutine FREEZE_SURFACE now limits only surface temperature
1443        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1444        => new output.txt for global_ocean.cs32x15 & global_with_exf
1445      - keep the old version of FREEZE for backward compatibility;
1446        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1447      - corresponding modifs for TAF directives
1448    o added surface flux output variables to TIMEAVE_STATVARS
1449    o time-averaged output for pkg/ptracers
1450    o fix problem with ECCO-related divided adjoint
1451      snapshot file was missing some ad-variables,
1452      but no warning issued by TAF
1453    
1454    checkpoint52a_pre
1455    o some bug fixes for #undef REAL4_IS_SLOW
1456    
1457    checkpoint52 = ecco_c52_e35
1458    o after testing adjoints of checkpoint51u_post
1459    
1460    checkpoint51u_post
1461    o this is the post-merge tag of the ecco-branch
1462      (needs another clean checkout and re-testing)
1463    o various natl_box_adjoint configs and results
1464      but no input fields
1465    o obcs adjoint not yet merged!
1466    o adding ECCO global 1x1 and 2x2 degree configs
1467    o updated/extended some store directives for seaice
1468    o pkg/ecco now containes ecco-specific part of cost function
1469    o top level routines the_main_loop, forward_step
1470      supersede those in model/src/
1471      previous input data.cost now in data.ecco
1472      (new namelist ecco_cost_nml)
1473    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1474    
1475    checkpoint51t_post
1476    o this is the pre-merge tag of the ecco-branch
1477    
1478    checkpoint51s_post
1479    o cleanup: removed various obsolete #define-s
1480    o pkg/grdchk
1481      - renamed 'ph-grd 3' to 'grad-res'
1482      - merged from ecco-branch
1483        (remaining bug fixes for obcs gradient checks)
1484      - additional high-precision output for testreport
1485        (grep for 'precision_grdchk_result')
1486    
1487    checkpoint51r_post
1488    o cleaned up or removed CPP_OPTIONS.h files
1489    o updated results for some of the tests to reflect the new
1490      optfiles (-ieee: -O0 instead of -O3)
1491    
1492    checkpoint51q_post
1493    o cd_code:
1494      - moved cd_scheme.F -> cd_code_scheme.F
1495      - separate read_checkpoint from cd_code_ini_vars.F
1496      - separated cd_code part from write_checkpoint
1497      - updated AD_SOURCE, generated .flow
1498      - added CD_CODE_VARS.h to the_main_loop
1499      - Moving cd_code specific store dir.s to pkg/cd_code
1500    o ctrl package totally restructured
1501      - pack/unpack now optional and decoupled from
1502        xx_/adxx_ I/O
1503      - ctrl_pack/unpack cleaned
1504        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1505      - confined inclusion of AD_CONFIG.h to where necessary.
1506    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1507    
1508    checkpoint51p_post
1509    o create initial cd_code package
1510      - WARNING: the initialization of fields within packages
1511        is broken because INI_FIELDS (where READ_CHECKPOINT is
1512        called) is called *before* PACKAGES_INIT_VARIABLES.
1513        This seems to be backwards since
1514        1) its important to initially zero the entire field including
1515           the "halo" region
1516        2) zeroing needs to be done *before* reading pickup info
1517           and the pickup call might or might not happen in any
1518           particular run
1519      - this needs an overhaul for R2
1520    o cleanup verification/*/code/GMREDI_OPTIONS.h
1521    o cleanup testreport
1522    
1523    checkpoint51o_post
1524    o bringing AD-related verif's up to date with genmake2
1525      - carbon/
1526      - global_ocean.90x40x15/
1527      - hs.94.1x64x5/
1528      - (front_relax/ )
1529    o (more) consistent directory structure for AD-related verif.'s
1530    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1531    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1532    o bug fix in find_alpha.F for MDJWF:
1533      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1534        change rho -> rho-rhoConst
1535      - replace call find_rho to find_rhonum
1536    o initialisation of rFlx extended to full array (required by TAF)
1537      and shifted to thermodynamics
1538    o removed PTRACERS.h in ptracers routine
1539    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1540    o Correcting initialisations for fVerU, fVerV.
1541    o helping TAF to recognize dependency on kUp for
1542      fVerU, fVerV
1543    o Replacing delZ by delR in pkg/ctrl/
1544    checkpoint51o_pre
1545    
1546    o undid all of cp51 pending some cleanups and discussion
1547    o added the [#include "AD_CONFIG.h"] statement to all files that need
1548       it for adjoint/tl #defines
1549     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1550     o removed tools/genmake since it no longer works
1551    
1552    checkpoint51n_post
1553    o modifications to make FREEZE flux visible to pkg/kpp
1554      - moved surfaceTendencyTice from pkg/seaice to main code
1555      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1556      - subroutine FREEZE now limits only surface temperature
1557        (this means new output.txt for global_ocean.90x40x15,
1558         global_ocean.cs32x15, and global_with_exf)
1559    o added surface flux output variables to TIMEAVE_STATVARS
1560    
1561    checkpoint51n_pre
1562    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1563    o added [#include "AD_CONFIG.h"] to all files that use the following
1564      defines:
1565      - ALLOW_ADJOINT_RUN
1566      - ALLOW_TANGENTLINEAR_RUN
1567      - ALLOW_ECCO_OPTIMIZATION
1568    
1569    checkpoint51m_post
1570    o incorporating changes to get TAMC/TAF working in genmake2
1571      - added new TAMC/TAF targets to the Makefile
1572      - various cleanups related to package handling
1573      - these changes should have no impact on the forward model
1574    
1575    checkpoint51l_post
1576    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1577     - faster algorithm for cal_addtime.F
1578     - higher precision arithmetic, where needed
1579     - pkg/exf *startdate variables changed from calendar date to
1580       model integration time
1581    
1582    checkpoint51l_pre
1583    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1584    o enable to apply restoring on S & T only in a latitude band.
1585    o update output (external_forcing_surf modif. change truncation errors)
1586       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1587    
1588    checkpoint51k_post
1589    o change default to: useNHMTerms=.FALSE.
1590     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1591       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1592     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1593        exp1, ideal_2D_oce
1594     - change data file of oceanic exp (leave the results unchanged for now)
1595       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1596    o set gravitySign automatically according to the vertical coordinate used
1597      (and change sign: back to "logical" value: +1 when R increases downward)
1598    o added an include barrier to the default CPP_OPTIONS.h and
1599      removed the #include "PACKAGES_CONFIG.h" from it
1600    o fix a bug in mom_fluxform (from chk51j_post)
1601    
1602    checkpoint51j_post
1603    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1604    o adjusted some flow directives (dynamics, thermodynamics)
1605    o added cubed-sphere case to test cost function
1606    o heckpoint_lev?_directives.h now include
1607      pkg-specific directives, whenever those are enabled.
1608    o Moving pkg-specific flow directives to corresponding pkg
1609      Moving pkg-specific differentiation list to corresponding pkg
1610      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1611      ---> conventions are
1612           - pkg_ad.flow
1613           - pkg_ad_diff.list
1614           - pkg_ad_check_lev?_dir.h
1615    
1616    checkpoint51i_post
1617    o merge of the branch-genmake2
1618      - knowingly breaks the older genmake
1619      - automatic generation of all ALLOW_${PKG_NAME} defines
1620      - new testreport supersedes older testscript
1621    o large number of package inclusion and header cleanups
1622    checkpoint51i_pre
1623    
1624    o new output for adjoin of global ocean vector invariant
1625    o fix for checkpoint of thermodynamic seaice and bulk_force
1626    o Steph gchem various cleanups
1627    
1628    checkpoint 51h_pre
1629    o fixed some single quotes
1630    o modify gchem pkg to be more versatile
1631    o modifications to clean up dic pkg
1632    o add pkg/cfc
1633    
1634    checkpoint51g_post
1635    o provide links for ARPACK and ADM*TLM
1636    o start removing verification/vero/
1637    o update AD-related stuff
1638      (in particular some IF-statements in model/src/ routines)
1639    o adding to verification/global_ocean.90x40x15/ adjoint of
1640      vector invariant setup
1641    
1642    checkpoint51f_post
1643    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1644    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1645      of tracer Green's fucntions for ocean inversion project.
1646    
1647    checkpoint51f_pre
1648    o Added on-the-fly spatial interpolation capability
1649        "USE_EXF_INTERPOLATION" to pkg/exf.
1650      - This is a temporary Cartesian-grid hack until
1651        the super-duper ESMF coupler becomes available.
1652      - See verification/global_with_exf/README for usage example.
1653      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1654        flags and modified pkg/seaice accordingly.
1655    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1656        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1657        non-local transport term.
1658    
1659    checkpoint51e_post
1660    o pkg/mom_vecinv:
1661      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1662      - add time-ave diagnostic of vorticity advection.
1663    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1664    o atmospheric geopotential: - include water vapor effect;
1665                                - use p^kappa in p* scaling.
1666    o land pkg: read initial state from files.
1667    o AIM : add stratospheric drag in the upper level
1668    
1669    checkpoint51d_post
1670    o change function ILNBLNK (=> last non-blank char.) to return zero
1671      (instead of the string length) when the string. char is empty
1672    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1673    o modif's to restore TAMC compatibility
1674      - avoid "_d" constructs in PARAMETER declarations
1675      - avoid interrupting lines by comment lines
1676    o Use cluster local disks for purely local I/O
1677      vs. globally visible disks needed for ctrl stuff
1678      (merged from ecco-branch)
1679      - new active_file_loc... and mdsio_..._loc routines
1680      - affected packages: autodiff, ctrl, grdchk, mdsio
1681    
1682    checkpoint51c_post
1683    o introducing integer flag debugLevel
1684      - debLevZero: suppress all output
1685      - debLevA: standard
1686      - debLevB: equivalent to current debugMode=.TRUE.
1687    o introducing pathname variable mdsioLocalDir for mdsio
1688      that can be specified at runtime
1689      (relevant for cluster I/O to local disk)
1690    `
1691    >>>checkpoint51b_post
1692    adjoint of ptracers
1693    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1694    o extended state in checkpoint_lev?, etc.
1695    o alternative ctrl/cost with tr1 or ptracer
1696    o new comlev1_bibj_ptracers
1697    o new ptracers.flow
1698    o made ptracers_forcing same as external_forcing_s
1699    o added verification for adjoint with ptracers
1700      - adm. grdchk fail so far
1701      - tlm. grdchk OK
1702      - checked tapelev/comlev recomputations: OK
1703    <<<checkpoint51b_pre
1704    
1705    checkpoint51a_post
1706    o added code for biogeochemistry package
1707      - new pkgs: dic, gchem
1708      - new subroutine in ptracers
1709    o modify code for biogeo packages
1710      - in model/src and pkg/ptracers
1711    
1712    checkpoint51
1713    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1714      - autodiff, ctrl, exf, grdchk, seaice
1715      kept separate packages
1716      - cost, ecco, obcs
1717    o updating verification/internal_wave, verification/lab_sea
1718      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1719    
1720    checkpoint50i_post
1721    o Preparing next differentiable checkpoint and sync
1722      of MAIN vs. ecco-branch
1723      - 1st step: this one is differentiable
1724      - 2nd step: next(! not this) checkpoint will have updated packages
1725                  from ecco-branch)
1726    
1727    checkpoint50h_post
1728    o new package "land": provide surface BC for AIM.
1729    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1730    o AIM: use true log-P extrapolation for near surface temp (= as in
1731        F.Molteni paper) ; update aim.5l_cs output.
1732    o New variable in PARM03 for more flexible pickups
1733    o somewhat cleaned package initialisation sequence for
1734      ctrl/ cost/ ecco/ in packages_... routines
1735    
1736    checkpoint50g_post
1737    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1738      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1739      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1740        made the default because of faster convergence than ADI
1741    
1742    checkpoint50f_post
1743    o exf totally restructured
1744      - replaced all exf_set_ routines by one generic exf_set_gen.F
1745        and made sure it's still differentiable
1746      - split exf_getffields.F into new exf_bulkformulae.F
1747      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1748      - updated adjoint/makefile and relevant verif. accordingly
1749    
1750    checkpoint50f_pre
1751     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1752          + change Evap over land. (update aim.5l_cs output)
1753     o added missing .cvsignores and made uniform across expts
1754     o changed configuration of tidal_basin_2d expt
1755     o added pkg/debug functions for tracing code in fatal crashes
1756     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1757     o new fn in pkg/monitor to stop model if solution grows too big
1758     o removed lots of single quotes from comments
1759    
1760    checkpoint50e_post
1761    o make KPP work with PTRACERS
1762     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1763       nearly a copy of kpp_transport_s
1764     - there is no analogue to SurfaceTendencyS, so I have to use
1765       gPtr(of the surface layer) instead
1766    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1767    checkpoint50e_pre
1768    
1769    checkpoint50d_post
1770    o change kpp output from multiple-record state files to single-record state
1771      files analogous to write_state.F
1772    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1773      analogous to the cg2d-related output.
1774    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1775      so that writing to internal file fn (with length 512) fails.
1776    checkpoint50d_pre
1777    
1778    checkpoint50c_post
1779    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1780    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1781    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1782    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1783    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1784    
1785    checkpoint50c_pre
1786    Merging from release1_p13:
1787    o bug fix for pkg/seaice dynamic solver
1788    o Added SEAICE_initialHEFF to pkg/seaice
1789    
1790    checkpoint50b_post
1791    o store u*,v* in gU,V instead of in guNm1,gvNm1
1792    o in order to put the momForcing out of the Adams-Bashforth:
1793      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1794      to timestep.F
1795    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1796    o re-generate output for highly sensitive test-exp:
1797       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1798    
1799    checkpoint50b_pre
1800    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1801    o corrected CPP option mismatch in exf_Bulk... functions for case
1802      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1803    
1804    checkpoint50a_post
1805    o Bug fix for merging between c50 and KPP.
1806      ikey was passed from thermodynamics to kpp_calc via
1807      common block rather than being recomputed in kpp_calc,
1808      in contradiction with new key itdkey.
1809      New key ikppkey created, and tamc.h headers updated.
1810    
1811    checkpoint50
1812    - 2nd step of merge with ecco-branch:
1813      merge changes in ecco-branch back into main trunk
1814    - bug fix in find_alpha
1815    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1816    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1817    - merged some sliced AD support routines
1818    
1819    checkpoint49
1820    merged from ecco-branch:
1821    o exf:
1822      - Enable initialisation of forcing fields to constant
1823        (runtime) values.
1824      - in exf_getffields.F
1825        Reduce i-/j-loop to interior domain, discarding overlaps.
1826        That also fixes wrong TAF-key computations for key_1, key_2
1827        with bulf formulae.
1828      - exf_init.F modify #ifdef for exf_init_evap
1829      - exf_getffieldrec.F, ctrl_getrec.F
1830        The following INT-usages are not safe:
1831          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1832          fldcount = int(fldsecs/fldperiod) + 1
1833        and were modified.
1834    o autodiff: checkpoint_lev...
1835      - updated storing for bulk formulae (some arrays were missing)
1836      - added state for seaice package
1837      - synchronized with main branch
1838    o DIVA:
1839      Modif.s in
1840      - the_main_loop.F
1841      - the_model_main.F
1842      and added cost_final_restore.F cost_final_store.F
1843      o With these changes, it is possible to fully separate
1844        the first forward run to compute the cost function (mdthe_main_loop)
1845        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1846        into separate model executions.
1847        This enables better tuning of DIVA to given queue sizes.
1848      o Loss of cost function value in consecutive DIVA runs is
1849        fixed by storing to 'costfinal' file.
1850      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1851        beginning/end of adjoint integration is accounted for.
1852      The current changes apply to TAF-1.4.26.
1853      TAF has one remaining bug, requiring one manual change
1854      (see MITgcm manual).
1855    o cal: synchronized between MAIN and ecco-branch
1856    
1857    checkpoint48i_post
1858    o Changes to restore differentiability of code w.r.t. previous tag
1859      (mostly adding new routines to make list and replacing
1860      pressure by totPhiHyd).
1861    o Updated and merged grdchk package
1862      - has both ADM and TLM checks
1863      - works for single- and multi-proc.
1864      - output cleaned
1865      - worked successfully for parallel DIVA
1866    o genmake:
1867      - Adding -platform=SP4
1868      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1869    o Modif. for DIVA:
1870      ctrl_unpack should not be called in intermediate DIVA interval.
1871      (similar thing would apply for active files such as
1872      tbar, sbar, psbar, which should not be reinitialised;
1873      only relevant for ecco-branch)
1874    
1875    checkpoint48h_post
1876    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1877    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1878    o Added SEAICE_initialHEFF to pkg/seaice
1879    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1880    
1881    checkpoint48g_post
1882    --- EOS:
1883    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1884      store total Potential in totPhyHyd for diagnostics & EOS.
1885    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1886    --- Pressure/geopotential gradient:
1887    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1888    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1889      ( changes results of global_ocean_pressure )
1890    o NLFS + z-coord.: add eta*Rho' contribution.
1891    o accurate phiHyd when using interface-W at the middle between 2 centers
1892     ( changes results of ideal_2D_oce )
1893    o includes r* 2nd term in potential gradient.
1894    
1895    checkpoint48f_post
1896    Merging from release1_p12:
1897    o Modifications for using pkg/exf with pkg/seaice
1898      - improved description of the various forcing configurations
1899      - added basic radiation bulk formulae to pkg/exf
1900      - units/sign fix for evap computation in exf_getffields.F
1901      - updated verification/global_with_exf/results/output.txt
1902    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1903      (SBO) core products, including oceanic mass, center-of-mass,
1904      angular, and bottom pressure (see pkg/sbo/README.sbo).
1905    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1906      to avoid negative values in shallow regions.
1907      - updated verification/natl_box/results/output.txt
1908      - updated verification/lab_sea/results/output.txt
1909    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1910    o Added useSingleCpuIO option (see PARAMS.h).
1911    o Updated useSingleCpuIO option in mdsio_writefield.F to
1912      work with multi-field files, e.g., for single-file pickup.
1913    o pkg/seaice:
1914      - bug fix in growth.F: QNET for no shortwave case
1915      - added HeffFile for specifying initial sea-ice thickness
1916      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1917    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1918      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1919    o pkg/seaice:
1920      - adjoint-friendly modifications
1921      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1922    
1923    checkpoint48e_post
1924    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1925    o dynamics: change definition of computational domain & adapt mom_fluxform
1926      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1927    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1928        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1929        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1930        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1931        inverted_barometer solid-body.cs-32x32x1
1932      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1933    
1934    checkpoint48d_post
1935    o in preparation for r*:
1936     a) use pre-computed gradient of hydrostatic potential:
1937        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1938     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1939        => affects results of glob_oce_pressure (different truncation error)  
1940      update output.txt of ideal_2D_oce & global_ocean_pressure
1941    
1942    checkpoint48d_pre
1943    o in preparation for r*:
1944      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1945      pass the 2 comp. of the grad. as arguments to momentum S/R.
1946      but for the moment, only used if it does not change the results.
1947    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1948    
1949    checkpoint48c_post
1950    Modifications in treatment of initial flux forcing controls
1951    to avoid extra storing of flux fields.
1952    
1953    checkpoint48c_pre
1954    o Added tidal_basin_2d experiment (currently 1D!)
1955    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1956    
1957    checkpoint48b_post
1958    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1959     (modification to pressure gradient not yet implemented)
1960    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1961      (for U & V) that are used for vertical advection of momentum.
1962    
1963    checkpoint48a_post
1964    o In preparation for r*, use temp. array to compute vertical transport
1965       in flux-form momentum pkg. => change results of few test-exp.
1966      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1967                        lab_sea, natl_box & plume_on_slope
1968    
1969    checkpoint48
1970    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1971    
1972    checkpoint47j_post
1973    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1974    o moved adexch from forward_step to addummy_in_stepping
1975    o added exch in ctrl_map_...
1976    o aveFreq.=0. at end of cost_final to avoid overwrite in
1977      reverse checkpointing loop
1978    o Yet more changes in gmredi:
1979      * adgmredi_calc_tensor
1980        avoiding all recomputation of gmredi_slope_limit
1981      * adgmredi_x/y/rtransport
1982        added flag for excessive storing to avoid recomp. of
1983        u/v/rtans, dTdx/y/z
1984        -> this is not really necessary and very memory-consuming
1985      * adgmredi_slope_psi:
1986        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1987      * gmredi_slope_limit
1988        re-activated full calculation of taperfct for case 'ac02'
1989    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1990    
1991    checkpoint47i_post
1992    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1993    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1994      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1995    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1996    o gmredi: fix few bugs.
1997    
1998    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1999    This will be a good checkpoint to plug into the ecco-branch.
2000    o few modif.'s to get latest version adjointed
2001      (mainly kick out code in ini_linear_phisurf)
2002    o modif's to run adjoint with exactConserv
2003    o case GM_BOLUS_ADVEC should be cleaned
2004      S/R gmredi_slope_psi should be cleaned
2005    o verification/carbon now has exactConserv=.TRUE.
2006    
2007    checkpoint47g_post
2008    o time-average AIM output: becomes independent from statvars time-average
2009      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2010    o After TAF bug fix:
2011      Tested adjoint of gmredi package.
2012      Tests were done with checkpoint47 rather than with latest
2013      checkpoint47f_post since the latter is broken for the adjoint
2014      verification/carbon/ contains both ADM and TLM gradient checks.
2015    Here they are, before they get changed/lost/stolen.
2016    Mostly modif.'s to fix numerical sensitivities.
2017    Gradient checks OK for
2018    - GM_taper_scheme:
2019      * clipping
2020      * ac02
2021      * linear
2022      * glw91
2023      * dm95
2024      * ldd97
2025    - GMREDI_OPTIONS:
2026      * GM_VISBECK_VARIABLE_K
2027      * GM_NON_UNITY_DIAGONAL
2028      * GM_EXTRA_DIAGONAL
2029      * GM_BOLUS_ADVEC
2030    in conjunction with data.gmredi parameters to be checked in
2031    in a few minutes under verification/carbon/code/
2032    
2033    checkpoint47f_post
2034    Merging from release1_p10:
2035    o modifications for using pkg/exf with pkg/seaice
2036      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2037        and SEAICE_EXTERNAL_FLUXES
2038      - pkg/exf CPP options EXF_READ_EVAP and
2039        EXF_NO_BULK_COMPUTATIONS
2040      - usage examples are Experiments 8 and 9 in
2041        verification/lab_sea/README
2042      - verification/lab_sea default experiment now uses
2043        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2044    
2045    checkpoint47e_post
2046    o created a tag prior to creating a branch
2047    
2048    checkpoint47d_post
2049    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2050      at the bottom boundary had an erroneous half slip boundary condition
2051    o added bottom drag and no slip boundary condition capabilities to
2052      oceanic pressure coordinates code
2053    o added new verification experiment global_ocean_pressure, this experiment is
2054      also described in the tutorial section of the manual
2055    checkpoint47d_pre
2056    
2057    checkpoint47c_post
2058    o Added a verification experiment for a global cubed-sphere ocean run
2059      -  verification/global_ocean.cubed32x32x30
2060      -  uses pkg/therm_seaice and pkg/bulk_forcing
2061    
2062    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2063    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2064      when using P-coordinate; only implemented for atmospheric config.
2065    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2066      NOTES: requires option NONLIN_FRSURF to be "#define".
2067    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2068    
2069    checkpoint47b_post
2070    Merging from release1_p9:
2071    o pkg/seaice
2072      - removed GOTO's and added taf directives
2073      - double precision constants to reduce the g77 (Linux)
2074        to F77 (SGI) differences reported in release1_p8
2075    o tools/genmake
2076      - added SGI options
2077    o verification/testscript
2078      - updated to that of checkpoint47a_post
2079    o verification/global_ocean.90x40x15/input/eedata
2080      - modified for SGI f77 compatibility
2081    o verification/lab_sea
2082      - added description of sea-ice model
2083      - added missing matlab routines
2084      - added test of thermodynamics parallelization
2085    
2086    checkpoint47a_post
2087    o new pkg: aim_v23
2088     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2089       for now, keep the same surface forcing as before.
2090     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2091     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2092     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2093    o add diagnostic of surface correction term in monitor output
2094    
2095    o bulk_force and therm_seaice
2096    - Two packages:  bulk_force (Bulk forcing)
2097      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2098    - Earlier integration from Stephaine Dutkiewicz
2099      and Patrick Heimbach.
2100    - Two ifdef statements for compile time,
2101       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2102    
2103    checkpoint47
2104    differentiable version of checkpoint46n_post
2105    o bug fix in quasihydrostaticterms
2106    o * "clean" adjoint code (in terms of extensive recomputations)
2107        can now be obtained for all GMREDI options (i.e. for
2108        - GM_VISBECK_VARIABLE_K
2109        - GM_NON_UNITY_DIAGONAL
2110        - GM_EXTRA_DIAGONAL
2111        - GM_BOLUS_ADVEC )
2112      * However, wrong gradient check problem remains unsolved.
2113      * New CPP options have been introduced for different
2114        tapering schemes
2115    o external_fields_load now part of differentiation list
2116    o pressure needs multiple storing;
2117      would be nice to have store_pressure at beginning or
2118      end of forward_step, e.g. by having phiHyd global (5-dim.)
2119      (NB: pressure is needed for certain cases in find_rho,
2120      which is also invoked through convective_adjustment).
2121    o recomputations in find_rho for cases
2122     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2123    o #define ATMOSPHERIC_LOADING should be differentiable
2124    o ini_forcing shifted to begining of initialise_varia
2125    o Incorporating QNVS line search routines into MITgcm
2126      (this is separate code, and therefore not under pkg)
2127      lsopt/, optim/
2128    o Updated verification/carbon/
2129      - #define GM_VISBECK_VARIABLE_K
2130      - GM_taper_scheme    = 'ldd97'    
2131    
2132    checkpoint46n_post
2133    Merging from release1_p8:
2134    o verification/natl_box:
2135      updating new external_fields_load routine
2136    o New package: pkg/seaice
2137      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2138      The sea-ice code is based on Hibler (1979-1980).
2139      Two sea-ice dynamic solvers, ADI and LSR, are included.
2140      In addition to computing prognostic sea-ice variables and diagnosing
2141      the forcing/external data fields that drive the ocean model,
2142      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2143      The implied surface heat flux is then stored in variable
2144      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2145      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2146      non-local transport term.  Because this call precedes model
2147      thermodynamics, temperature under sea-ice may not be "exactly" at
2148      the freezing point by the time theta is dumped or time-averaged.
2149      N.B.: fairly large differences in accuracy occur across
2150            different platforms/compilers; comparison between
2151            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2152            generated output gives:
2153       T           S           U           V
2154      C D M    c        m  s        m  s        m  s        m  s
2155      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2156      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2157      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2158    
2159      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2160    o GAD:
2161      - generated new common blocks to account for call of
2162        same gad routines with differing traceridentities
2163        (needed to modify tracerIdentity indices in GAD.h)
2164      - generated separate common blocks for case useCubedSphereExchange
2165        (Department of Futurology)
2166      - parameter lists to gmredi_?transport: added tracerIdentity
2167      - added new key indices to tamc.h
2168    o external_fields_load:
2169      - added this routine to TAF list
2170      - needed to make some common blocks global and additional storing
2171        along the same lines as exf package (checkpoint_lev?_directives.h)
2172    o exf:
2173      updated external forcing package
2174      - bug fixes carried over from ecco-branch
2175        (missing OBCS_OPTIONS.h in two routines)
2176      - enable easy to use "no forcing".
2177      - added exf I/O for atmospheric loading
2178      - added exf I/O for runoff data
2179      - transfered scaling between exf <-> MITgcm to exf namelist
2180    o Adding new verification experiment global_with_exf.
2181      This verification experiment is almost identical to the
2182      global_ocean.90x40x15 experiment, except that it uses
2183      the exf (and cal) package instead of the
2184      external_fields_load routine (cf README file).
2185    
2186    checkpoint46m_post
2187    o modified testscript to return -- when there are no lines of "%MON" output
2188    o added new flag "quasiHydrostatic" for QH mode
2189      and new routine quasihydrostaticterms()
2190    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2191      New routine: mom_u_coriolis_nh()
2192    o fixed sign of non-hydrostatic metric terms in u and v equations.
2193      Depend on correct sign of gravitySign.
2194    o added work.pc* to .cvsignore in aim directories using ifc
2195    o introduced flag for controllin non-hydrostatic metric terms
2196    o removed gravitySign from PARM04
2197    o switched to g77/ifc from pgf77 in aim experiments
2198    
2199    checkpoint46l_post
2200    o made convective adjustment work with pressure coordinates:
2201     - changed the direction of k-loop in convective_adjustment.F for the
2202       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2203     - adjusted the reference pressure k-index in convective_adjustment.F
2204     - adjusted the convection condition in convect.F (in analogy to
2205       calc_ivdc.F)
2206     - convective_adjustment no longer computes anything on the halos
2207     - removed the warnings about negative salinity from find_rho.F and
2208       find_alpha.F; instead the new routine look_for_neg_salinity, called
2209       at the beginning of find_rho, find_alpha, and find_beta, does a
2210       check of the entire slice, if CPP-option
2211       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2212    checkpoint46l_pre
2213    
2214    checkpoint46k_post
2215    o fixed the verification/global_ocean.90x40x15 experiment:
2216     - new bathymetry (the world according to A., JMC, and M.)
2217     - new initial fields and forcing fields (*.bin files)
2218     - new POLY3.COEFFS (for the next release one should switch to a full
2219       equation of state: JMD95P or MDJWF)
2220     - fixed several errors and redundancies in the data file
2221     - experiment uses looped cells
2222     - added matlab directory with diagnostic scripts for plotting of output
2223    
2224    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2225     - read AIM physics parameters from a file (data.aimphys)
2226     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2227    
2228    checkpoint46j_post
2229    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2230    o move wVel computation at the end of the time step, in S/R integr_continuity
2231    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2232    o update timeave pkg for wVel diagnostic.
2233    checkpoint46j_pre
2234    
2235    checkpoint46i_post
2236    o Clean up AIM package (and keep the results unchanged):
2237      include CPP_OPTION and use IMPLICT NONE in all routines ;
2238      declare all the variables _RL ; use _d 0 for all numerical constants.
2239      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2240    
2241    checkpoint46h_post
2242    o cleaned up the use of rhoNil and rhoConst.
2243      - rhoNil should only appear in the LINEAR equation of state, everywhere
2244        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2245        and the dynamical equations are all divided by rhoConst
2246    o introduced new parameter rhoConstFresh, a reference density of fresh
2247      water, to remove the fresh water flux's dependence on rhoNil. The default
2248      value is 999.8 kg/m^3
2249    o cleanup up external_forcing.F and external_forcing_surf.F
2250      - can now be used by both OCEANIC and OCEANICP
2251    checkpoint46h_pre
2252    
2253     Added code to convert surface volume flux (fresh water) into
2254     a mass flux when using P coordinates in the ocean (OCEANICP).
2255     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2256    
2257    checkpoint46g_post
2258    o Include a new diagnostic variable phiHydLow for the ocean model
2259      - in z-coordinates, it is the bottom pressure anomaly
2260      - in p-coordinates, it is the sea surface elevation
2261      - in both cases, these variable have global drift, reflecting the mass
2262        drift in z-coordinates and the volume drift in p-coordinates
2263      - included time averaging for phiHydLow, be aware of the drift!
2264    o depth-dependent computation of Bo_surf for pressure coordinates
2265      in the ocean (buoyancyRelation='OCEANICP')
2266      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2267        Theta, Salinity, and Pressure in the parameter list. This routine is
2268        presently contained in find_rho.F. This routine does not give the
2269        correct density for 'POLY3', which would be a z-dependent reference
2270        density.
2271    o cleaned up find_rho
2272      - removed obsolete 'eqn' from the parameter list.
2273    o added two new verification experiments: gop and goz
2274      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2275    checkpoint46g_pre
2276    
2277    checkpoint46f_post
2278    o Enable tangent linear (forward mode) gradient checks:
2279      - extended active file handling to g_... files
2280      - added TANGENT_SIMULATION to theSimulationMode
2281      - extended grdchk package accordingly
2282    o added tangent linear setup in verification/carbon/code_ftl
2283    o added adjoint setup in verification/front_relax/code_ad
2284    
2285    checkpoint46e_post
2286    o Added new equation of state -> MDJWF
2287      - EOS of McDougall et al., 2002, JAOT, submitted
2288      - caveat: the equation of state is only valid for a smaller (more
2289        realistic?) range of values than JMD95P/Z and UNESCO
2290      - added masks to the calculation of pressure in store_pressure
2291      - added more check values for density in check_eos (ini_eos.F), some of
2292        the old check values are out of the range of the MDJWF-eos, so don't
2293        expect perfect matches for those
2294    checkpoint46e_pre
2295    
2296    checkpoint46d_post
2297    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2298      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2299      case of pressure coordinates. eosType='JMD95Z' in
2300      combination with buoyancyRelation='OCEANICP' now causes an error.
2301    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2302      in find_alpha/beta.
2303    checkpoint46d_pre
2304    
2305    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2306      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2307    
2308    checkpoint46c_post
2309    o Changes necessary for ocean in p-coordinates
2310     -  Added new buoyancy relation = 'OCEANICP'
2311     -  Added new parameters = gravitySign (this used to be contained inside
2312        the factor dRdZ which I added when we first switched to R coordinates).
2313     X GM/Redi is not compatible (yet)
2314     X bottom drag and no-slip need to be debugged.
2315    checkpoint46c_pre
2316    
2317    checkpoint46b_post
2318    o Added new equation of state -> JMD95Z and JMD95P
2319      - EOS of Jackett and McDougall, 1995, JAOT
2320      - moved all EOS parameters into EOS.h
2321      - new routines ini_eos.F, store_pressure.F
2322    o Added UNESCO EOS, but not recommended because it requires
2323      in-situ temperature (see JMD95)
2324    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2325      unesco.f to be used with POLY3
2326    checkpoint46b_pre
2327    
2328    checkpoint46a_post
2329    o Added (atmospheric) pressure loading
2330      - new field in FFIELDS.h, etc...
2331      - new cpp flag ATMOSPHERIC_LOADING
2332    o Changed hFacC to _hFacC in calc_phi_hyd.F
2333    o Added SHORTWAVE_HEATING to some files for consistency
2334    checkpoint46a_pre
2335    
2336    checkpoint46
2337    further merges from release1_p5
2338    o new ctrl package
2339      - adopted from ECCO environment to enable optimization
2340      - added Eliassen Palm fluxes to controls
2341    o added Eliassen Palm flux controls to gradient check package
2342    o cost package
2343      - Compatible with new ctrl package
2344      - added Eliassen Palm cost hooks
2345      - modif's of existing cost functions
2346    o Adjoint-related bug fixes in kpp:
2347      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2348      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2349    o autodiff package
2350      - flow directives:
2351        + new for S/R do_the_model_io
2352        + enhanced for S/R checkpoint
2353        + new gmredi.flow
2354      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2355        disable adcommon.h/g_common.h by default.
2356      - fixed problem for adjoint of global_max
2357    o modified verification/carbon/
2358    o New setup for adjoint of global_ocean
2359    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2360    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2361    o incorporated hooks for sponge layer code (external_forcing.F)
2362    
2363    checkpoint45d_post
2364    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2365    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2366      (affects plume_on_slope "cg2d" output)
2367    o add new parameter deltaTfreesurf for free-surface time stepping
2368    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2369    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2370    o change phiMin in exp1 (to agree with documentation)
2371    o add new flags:
2372     - T,S forcing inside/outside Adams-Bashforth
2373     - turn off temp,salt advection and/or forcing
2374     - for each tracer, define internal flag for multiDimAdvection & A-B
2375    o monitor: change definition of KE to check conservation of Energy
2376    
2377    checkpoint45c_post
2378    o Removed f90 comments ("!")
2379    o Modified initialisations to enable exf package for MITgcm
2380      (without invoking ECCO_PACKAGE).
2381    o modifications to gradient check package (Martin Losch)
2382      - enable centered differences
2383      - modified format of standard output
2384    
2385    checkpoint45b_post
2386    o cleaned exchange calls in cg2d
2387    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2388    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2389      to configure barotropic setup (Martin Losch)
2390    o moved some initialisations within bi,bj loop in dynamics
2391      (TAF flow dependency)
2392    o in initialise_varia, moved call packages_init_variables
2393      before convective_adjustment_init
2394      (corresponding adjustment of TAF tape initialisation).
2395    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2396    
2397    checkpoint45a_post
2398    o compute Rho over the whole domain (extend iMin,jMin indices)
2399    o specific exchange for X-slice domain (case Ny=1)
2400    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2401    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2402    
2403    checkpoint44h_post = checkpoint45
2404    o Fix to restore differentiability:
2405      place at which packages_init_variables is called in
2406      initialise_varia is crucial for reverse control flow.
2407    o modifications in GMRedi to enable stable adjoint
2408      (corresponding modif's in thermodynamics, dynamics)
2409    o added missing hook for sponge layer code in external_forcing
2410    o modified test cost functions
2411    o storing in gad_advection (plus removal of write(0,*)!
2412    o missing headers TR1.h added in convective_adjustment routines
2413    o errorMessageUnit set non-equal zero in eeboot
2414      (conflict on some platforms, e.g. IBM SP3)
2415    o modified carbon verif.
2416    
2417    checkpoint44h_pre
2418    o vertical grid option: allow to put the Interface at the middle between
2419      2 cell-centers ; replace delZ in pkg/kpp by drF.
2420    o GM Advective form: Tracers are advected using the residual transport (=
2421      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2422    
2423    checkpoint44g_post
2424    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2425      results) ; ifdef missing in thermodynamics.F
2426    
2427    checkpoint44f_pre,checkpoint44f_post
2428    o added PTRACERS package
2429      This allows an arbitrary number of passive tracers to be integrated
2430      forward simultaneously with the dynamicaly model.
2431      + Implemented so far:
2432        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2433        - I/O and checkpointing
2434        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2435      + Not implemented so far:
2436        - KPP
2437        - OBCS
2438      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2439        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2440        line in data.pkg.
2441      + This package is disabled by default since it increases storage.
2442    
2443    
2444    o testscript: added -cleanup option
2445    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2446                 b) enable to filter 2D fields.
2447    
2448    checkpoint44e_pre,post
2449    o re-wrote convective adjustment to use pre-calculated weights
2450      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2451      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2452      Original calls to convect() still in place.
2453    
2454    chkpt44d_pre,post
2455    o added missing EXCLUDE_MONITOR flags
2456    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2457      (incompatible typ in MIN/MAX expressions caused problems
2458      on IBM SP3)
2459    o in genmake added variable MAKEDEPEND
2460      plus resetting for case SunOS
2461    o added timer_stats.c routine for IBM SP3
2462    o removed variables in dynamics
2463    !!! I forgot to create tag chkpt44d_pre !!!
2464    !!! But chkpt44d_pre = chkpt44c_post    !!!
2465    
2466    o real fresh water flux implemented with non-linear free-surface.
2467    
2468    chkpt44c_pre,post
2469    o few fix (mask in shap_s2, EmPmR in external_field_load,
2470      USE_NATURAL_BCS in solve_for_P);
2471    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2472    
2473    checkpoint44b_pre/_post
2474    o merge of relevant stuff from the ecco-branch:
2475      - genmake: removed $S64 overwrite for case SunOS
2476      - pkg/exf: update and corrections for field swapping and obcs
2477      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2478                  harmonized between ECCO and MITgcm
2479      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2480                      updated checkpointing_lev... lists for obcs
2481      - model/src: minor changes in forward_step, plot_field
2482                   added directive for divided adjoint in the_main_loop
2483      - pkg/mdsio: added mdsio_gl_slice
2484    
2485    o check parameters & config (chkpt44a_pre,post)
2486    o OBC and NonLin_FrSurf.
2487    
2488    checkpoint44
2489    o fix bug in mom_vi_del2uv
2490    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2491    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2492    o update AIM experiments (NCEP input files)
2493    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2494    o added some stuff for AD
2495    
2496    checkpoint43
2497    o added two new advection tests
2498    o added global 4x4 degree ocean test
2499    o added test of H&S94 with free surface on cube
2500    o some final mods for gradient check, adjoint,...
2501    
2502    checkpoint42
2503      Fixed AD-related problems:
2504    o Store directives up-to-date with re-arranged Adams-Bashforth
2505      (mainly thermodynamics.F)
2506    o New store directives for multi-dim. advection schemes
2507      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2508      * new common block and key passkey
2509      (mainly gad_advection.F)
2510    o Modified store directives for split of dynamics/thermodynamics
2511      for the case ALLOW_KPP
2512    o Cleaned argument list for timestep_tracer.F
2513    
2514    checkpoint41
2515    o re-formatted/added comments in prologues of key subroutines
2516      to work with protex
2517    
2518    checkpoint40
2519    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2520    o added FLT (floats) package from Arne along with demo. experiment
2521    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2522      implementation of forward-in-time forcing terms
2523    o more mods for non-linear free-surface including new variable
2524    o modified multi-dim method to work on cube
2525    o bug fix in KPP (from DM)
2526    
2527    checkpoint40pre9
2528    o added DST advection schemes
2529    o fix MPI bug on SGI's
2530    o modifications for non-linear free-surface
2531    o fixed conditionals for fixed flow/passive tracer only mode
2532    o added tension/strain form of stress tensor
2533    o changes to commenting of arguments for TAF/TAMC
2534    o added/updated many matlab scripts
2535    o added multi-dimensional advection method for tracers
2536      
2537    checkpoint40pre8
2538    o new package rw/
2539      Added method for dumping intermediate local arrays:
2540      mdsio_writetile - same as mdsio_writefield except works from inside
2541                        bi,bj loop
2542      mdsio_writelocal - same as mdsio_writetile except works for local
2543                         arrays
2544      write_local_r? - higher-level wrapper for mdsio_writelocal
2545      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2546      Example given at end of mom_vecinv.F that dumps some local arrays.
2547    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2548      control flux-form versus vector invariant code.
2549      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2550      or genmake -DISABLE ...
2551    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2552      (additional storing is now needed for case vecinv;
2553      currently nothing implemented to switch this storing off
2554      in case fluxform is used since no CPP flag available).
2555    
2556    checkpoint40pre7
2557    o bug fix in dynamics.F
2558      calc_viscosity called before k=1,Nr loop.
2559    o added some #ifdef's ALLOW_PASSIVE_TRACER
2560    o cleaned initialisations in ctrl_map_ini
2561      related to TAF
2562    
2563    checkpoint40pre6
2564    o split dynamics into thermodynamics & dynamics
2565    o corresponding split of calc_diffusivity into
2566      calc_diffusivity, calc_viscosity
2567      (kpp_calc_diff, kpp_calc_visc).
2568    o Added diffkr, kapgm to control variables
2569    o bug fix in gmredi_slope_limit for ldd97
2570    
2571    checkpoint40pre5
2572    o proper initialization of Adams-Bashforth time stepping
2573      + uses forward step for very first step of model (iter=0)
2574    o re-generated *all* output since almost all output is modified by this
2575      change (sorry but we've been putting this one off for about 2 years)
2576      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2577        *not* regenerated since they are already out of date and I don't
2578        want to create the impression that they are suddenly working.
2579    o removed KAP stuff for DEC's
2580    o modified/added many .cvsignore files in */code and */input
2581    o added new expt "solid-body.cs-32x32x1"
2582      + this uses an alternative form of ini_curvilinear_grid.F which
2583        is not necessarily any better than the current one...
2584    
2585    checkpoint40pre4
2586    o added re-initialisations of utrans,vtrans,rtrans in
2587      calc_common_factors which are crucial for TAF.
2588    o extended iMin,jMin range for calc_common_factors,
2589      calc_diffusivity
2590    o added option ALLOW_PASSIVE_TRACER
2591    o a few minor updates and fixes
2592    
2593    checkpoint40pre3
2594    o created calc_gtr1.F for gad package
2595    o split the_main_loop and re-introduced forward_step
2596    o some recomputations of nIter0 for TAMC
2597    
2598    checkpoint40pre2
2599    o Updated to latest branch of AJA, JMC
2600    o Added gradient check package
2601    o Added routines for passive tracer handling
2602    o Added carbon sequestration sensitivity experiment
2603    
2604    checkpoint39
2605     o Modifications and fixes to support TAMC
2606       (mainly missing or wrong directives)
2607     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2608       in addummy_in_stepping
2609     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2610     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2611     o Included following packages:
2612       cal: calendar
2613       exf: external forcing
2614       ecco: essential routines to control use of cal, exf
2615             (NB: this is not the full ECCO environment)
2616     o disabled some packages by default in genmake
2617    
2618    checkpoint38
2619     o see notes_c37_adj.txt
2620     o corrected wrong layer index in external_forcing_t
2621     o replaced the_main_loop/forward_step by the_main_loop
2622     o removed forceoutput from write_state
2623       (replaced criteria for initial/final state)
2624     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2625    
2626    checkpoint37
2627     o mdsio.F routine split and packaged in pkg/mdsio
2628       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2629        used unless genmake -disable=mdsio)
2630     o allow a more precise surface-geopotential gradient for the atmosphere
2631       taking into account the change in space of Alpha (=1/rho) at the surface.
2632     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2633       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2634     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2635       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2636       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2637     o Time-Average diagnostics defined as a pseudo package "timeave".
2638     o pickup files : old pickup (before c35) did not work with new code (c35
2639       and after) unless activating 2 commented lines in initialise-varia.
2640     o Non-Hydrostatic pickup file Pb fixed.
2641     o bug with Rigid-lid version (since c35) fixed.  
2642    
2643    checkpoint36
2644     o implement Crank-Nickelson barotropic time-stepping
2645     o recover Time-Average diagnostics
2646     o fix Pb in checkpoint (PR#19)
2647     o AIM become a standard package ; clean unused CPP_kees
2648    
2649    checkpoint35
2650     o subtantial rewrite of dynamics.f
2651     o allows staggered time-stepping
2652     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2653     o added bottom drag (linear + quadratic)
2654    
2655    checkpoint34
2656     o Modified exchange routines for correct reverse simulation.
2657     o Added verification output to comply with bug fix in impldiff.F
2658       as of c33 (exp2, natl_box).
2659     o Corrected store directives in dynamics.F
2660     o Corrected array boundaries in impldiff.F
2661     o Corrected array dimensions in gmredi.
2662       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2663     o Added routine GLOBAL_SUM_INT to global_sum.F
2664     o Added mdsio_gl.F for ECCO purposes.
2665    
2666  checkpoint33  checkpoint33
2667   o Fixed bug in lower BC in impldiff.F   o Fixed bug in lower BC in impldiff.F
2668   o Fixed confusion about units of forcing arrays in FFIELDS.h   o Fixed confusion about units of forcing arrays in FFIELDS.h

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