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revision 1.32 by adcroft, Thu Nov 30 16:51:40 2000 UTC revision 1.647 by mlosch, Wed Apr 5 21:27:19 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
8      completeness
9    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
10      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
11    o ptracers adjoint:
12      * avoid extensive recomputatations
13      * fix missing re-init. of gptr (missed by TAF)
14    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
15      me to turn off the excessive output to STDOUT that this package produces
16    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
17      and add those terms in Vector-Invariant formulation.
18    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
19      if the control period (xx_hfluxperiod etc) is 0
20    o in profiles pkg, clean routines and fix details
21    o in ecco pkg, reading ssh data:
22      fix problem in case the model does not start at iter0=0
23    o fix mnc-pickup/restart for ptracers
24    o new package prifiles:
25      code to compute profile-based cost by Gael Forget
26      (modifs in ecco, ctrl, autodiff)
27    o Benign bug fix in initialization (spotted by M. Mazloff) of
28      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
29    
30    checkpoint58c_post
31    o adjoint: finish NLFS adjoint and provide reference output in
32      verification/global_ocean.90x40x15/results_ad_nlfs
33    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
34      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
35      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
36      with SEAICE_CGRID defined.
37    o move calendarDumps from "data" to "data.cal" and clean-up the code
38      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
39    o add useEXF & useCAL flags (for now, set in hard-coded way)
40    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
41      (were missing in NH mode, and wrong in quasihydrostatic mode).
42      waiting for Chris updated version of calc_gw to add those CALLs.
43    o fix bug in quasihydrostatic S/R ;
44      add a test for this option: global_ocean.90x40x15.qshyd
45    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
46      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
47    o add on/off flag useOffLine for package OFFLINE
48    o seaice:
49      - modify advection so that it works also on the C-grid
50      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
51        problem in multi-tile runs with C-grid
52      - add flags for clipping ice velocities and/or masking solver forcing
53      - fix drag (ocean on ice) formulation and a bug that caused noise in the
54        C-grid solver
55      - added a few comments to seaice_diffusion.F
56      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
57        are now exclusive)
58      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
59        required re-ordering the code a little:
60       + make DAIRN global variable (defined in SEAICE)
61       + move computation of the viscosities eta and zeta into a new separate
62         routine (because I need to recompute them in seaice_ocean_stress.F)
63    
64    checkpoint58b_post
65    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
66      update output.txt of exp. aim.5l_cs.thSI
67    o various mnc cleanups and improvements:
68      + shrink lookup tables by factor of ~4
69      + better error reporting when running out of lookup space
70      + able to handle longer path/file names (up to 500 chars)
71    o adjoint:
72      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
73      - TBD: "hidden" mom_vecinv recomp. in dynamics
74    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
75     (allow to differentiate between forcing components using new integer flags:
76      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
77     and add new flag to put Dissipation tendency out of Adams-Bashforth.
78    o ecco
79      - enable trend removal from SSH anomaly obs.
80    o adjoint
81      - a fix for PmEpR when #undef EXACT_CONSERV
82      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
83      - try to fix "hidden" recomp. in forward_step for NLFS
84        (NLFS seems broken sometimes after I checked it in)
85    o seaice:
86     - add c-grid version of the dynamic solver:
87       + three new routines that are the c-grid substitute lsr, dynsolver
88         and ostres
89       + put a few fields that were local to dynsolver into global common
90         blocks, so that I can move the computation of stresses etc into
91         seaice_lsr (saves coding but may break the adjoint).
92     - replace more hardwired parameters by runtime parameters
93     - add ice masks that mask the rhs of the implicit solvers where there
94       is no ice (commented out in seaice_dynsolver, because i am not sure
95       if this works properly), eventually this should replace the clipping
96       of ice velocities in seaice_dynsolver to +/-40cm/s.
97    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
98      include it only where its needed
99    o move balancing of fluxes before the call of external_forcing_surf
100    o seaice:
101      - correct units of turning angles (now they are really in degrees)
102      - move computation of GWATX/Y out of main routine into dynsolver
103      - initialize GWATX/Y in seaice_init
104    o Apply mask on Fresh-Water flux (needed for SSH forcing).
105      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
106    o seaice: add runtime flags for turning angles (default to zero)
107    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
108      and trend from exf forcing and ctrl control adjustments
109    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
110      (since checkpoint57x_post)
111    o change the default rotation period to 86164.s = the Earth rotation
112    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
113      and based on a reference stratification. Tested within hs94.cs-32x32x5.
114    o seaice advection: add code for choosing between the default (2nd order
115      central differences) and multiDim advection schemes provided by
116      pkg/generic_advdiff
117    o seaice:
118      - removed all references to SEAICE_GRID.h fields from
119        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
120        (cubed-sphere configuration will change a little)
121      - grid computations in seaice_init are obsolete now.
122      - cleaned up code a little so that is easier to read (hopefully).
123      - added new (better?) discretizations of default advection and diffusion
124        (turn on with SEAICEuseFluxForm)
125      - replace 1 in 3d global fields by kSurface in growth.F
126      
127    checkpoint58a_post
128    o seaice:
129      - bug fix in advect.F
130    o shelfice:
131      - separate shelfice load anomaly from pload (breaks with time
132        dependent forcing), => introduce constant field shelficeLoadAnomaly.
133        Its default is 0., but it may be computed more cleverly from (unknown)
134        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
135        done offline. A good approximation of the pressure load anomaly is
136        necessary to avoid large initial adjustment processes underneath
137        deep-reaching shelfice.
138      - small fix in ISOMIP shelfice_thermodynamics
139      - add more sophisticated thermodynamics of Hellmer (1989), this is
140        now the default
141      - give a few constants more intuitive names
142    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
143      if bulk formulae are used in long integration (especially EmPmR). Turn
144      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
145      if balancePrintMean, the imbalance that is substracted is printed to
146      STDOUT.
147    o fix bug (typo) in obcs_apply_eta.F
148    o add a new package shelfice which enables us to model the circulation
149      underneath shelf-ice with draughts of hundreds of meters.
150     - works
151     - to do: + include improved thermodynamics
152              + check whether kSurfC (from model/inc/SURFACE.h) can be used
153                instead of new field kTopC
154              + can we use topoFile, Ro_surf and existing code in ini_depth.F
155                instead of new field R_shelfIce and new code in ini_depth.F
156                and ini_mask_etc.F?
157              + adjust vertical mixing schemes?
158    o seaice pkg:
159     - add a cpp-flag to include a simple formula for a salinity dependent
160       freezing point of sea water at the surface
161     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
162       meridional stresses are now different (and hopefully correct)
163    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
164       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
165       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
166    o pkg/diagnostics: add options and parameters for regional-statistics
167       diagnostics ; define regions by reading a region-mask from a file
168       (might add other options later)
169    o pkg/bulk_force:
170     - add option and parameters to use AIM surface-flux formulae.
171     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
172       others forcing fields (defined in PARM05, parameter file "data") are loaded
173       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
174     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
175     - use the right EXCH call for uwind,vwind (to work on CS-grid).
176     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
177       and parameters (note: calcWindStress replaces .NOT.readwindstress).
178     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
179    
180    checkpoint58
181    o add "--embed-source" option to genmake2 which, when the supporting
182      tools can be compiled (as determined by genmake2) will turn on the
183      embed_files package which then embeds the entire MITgcm source code
184      (*.[fFhc] + Makefile) used for the build within the executable
185      - requested by CNH but off by default
186      - adds a paltry <9MB to the mitgcmuv executable in most cases
187      - only writes the output when useEMBEDSRC in eedata is true
188    o clean up 3-dim. relaxation codes:
189      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
190      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
191      * Thanks to Tom Haine for testing!
192    
193    checkpoint57z_post
194    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
195      affects output (@ truncation level) of exp. plume_on_slope ; updated.
196    o fix the pickup behavior for obcs in combination with ptracers
197    o fix a bug in ptracers_external_fields_load
198    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
199      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
200    o transfered surface NH pressure to eta field (if exactConserv).
201    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
202         and update lab_sea output.txt file.
203    o completing 3-dim. relaxation code: additional term
204         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
205      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
206      * At compile time, in "EXF_OPTIONS.h" set
207          #define  ALLOW_CLIMTEMP_RELAXATION
208          #define  ALLOW_CLIMSALT_RELAXATION
209      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
210          tauThetaClimRelax3Dim = 15552000.0,
211          tauSaltClimRelax3Dim  = 15552000.0,
212      * 3 cases:
213          1) Use a constant-in-time 3-dim. field
214          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
215          3) Real-time relax. to time-evolving prescribed field
216    o Adding Laplacian-type smoothness constraint on
217      initial and boundary (forcing) controls (ic, bc)
218      * enable at compile-time via
219        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
220      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
221      * Absolute scale somewhat unclear so far
222      * no area weighting was included since no other cost term does so far
223    
224    checkpoint57y_post
225    First step for a NLFS adjoint
226    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
227    o new init. routines for calc_r_star, calc_surf_dr
228    o still need to deal with ini_masks_etc
229    o testreport seemed happy
230    checkpoint57y_pre
231    
232    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
233    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
234    o add new offset feature to offline pkg (plus minor cleanup)
235    o cfc fixes for final year of integration
236    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
237      be in GCHEM_OPTIONS).
238    
239    checkpoint57x_post
240    o fix testreport Pb in multiple test experiment.
241    o cleanup our namelist syntax in verification:
242      - make it more F95 standards compliant (some work still needed)
243      - allows the vast majority of our tests to work with gfortran
244    o Non-Hydrostatic:
245     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
246     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
247    o Allow to apply AB on T,S rather than on AB(gT,gS):
248     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
249     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
250       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
251     - need a "clever" read_pickup to restart from the other AB formulation
252    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
253    o remove some unused variables (reduces number of compiler warnings)
254    o adjoint
255      * Disable useVariableViscosity for adjoint for time being
256        (there are a number of extensive recomputations)
257      * Initialize certain variables needed for adjoint
258    
259    checkpoint57w_post
260    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
261                 fix the singleCpuIO RS version of MDSWRITEFIELD
262       and add a WARNING if using globalFiles=T with multi-processors.
263    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
264      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
265    o tracer advection scheme:
266      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
267       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
268       was not very convenient).
269      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
270       (further tests needed for the implicit DST & Flux-Limiter schemes).
271    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
272      and sRef for convenience, handy, when you want to initialize
273      ptracers in a large domain with a constant non-zero value. Also,
274      untangle ptracers_init.F a little.
275    
276    checkpoint57v_post
277    o change dome exp. to use variable viscosity in side-drag terms.
278    o remove all the files from the cfc_offline test since they are now
279      incorporated into tutorial_cfc_offline which has been producing
280      identical results for a few days of testing
281    o add new parameter: sideDragFactor to enable half-slip-side BC
282      and change side-drag S/R to use viscosity from mom_calc_visc
283      (can switch back by setting sideDragFactor=0.); affects results at
284      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
285       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
286    o vorticity & strain are now computed without masking, to account for
287      no-slip-side BC in variable viscosity calculation ; mask is applied
288      anyway later on, before computing advection/coriolis terms.
289    o modify exp4 to test new obcs support for reading from external files
290      and for passive tracers
291    o fix behavior of ptracers_monitor when monitor output is written to a
292      netcdf-file; still not independent of monitor.F (writes in the same
293      file).
294    o change default value of tRef (put a uniform, meaningful value for ocean
295      & atmos) and initialize sRef (was missing, as Martin mentioned).
296    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
297      to be proportional to enstrophy dissipation length.  Thus,
298       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
299      This is now consistent with Smagorinsky and with the manual.
300    
301    checkpoint57u_post
302    o OBCS and PTRACERS: add open boundary support for passive tracers
303      - either use homogenous (pseudo) v.Neumann conditions or prescribe
304        OB-values from file; this is not different from the way theta and salinity
305        are treated
306      - however, Orlanski-radiation conditions are not supported, and the model
307        will stop if you use pTracers and Orlanski at the same time.
308      - beefed up the rountine obcs_external_fields_load: now only those open
309        boundary values are overwritten with values from files for which there
310        are really files, otherwise the OB-fields remain untouched. This makes
311        it possible to use different OBs at different ends of the domain (as
312        with EXF)
313    o reduce number of exch calls in shap_filt (s2).
314    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
315      truncation level) 4/5 MLAdjust test results (11&12 digits match).
316    
317    checkpoint57t_post
318    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
319    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
320      same truncation, independent of the face number: affects affects several
321      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
322    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
323      note that biharmonic viscosity + no-slip was not tested in any experiment.
324    o fix bug in non-linear free-surf side-drag ; generate new output for
325      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
326    o make mnc honor the writeBinaryPrec flag for most kinds of output
327    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
328    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
329      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
330    o add brackets in multi-terms sum to get same truncation, independent of
331      the face number (manage to get exactly same value of gU,gV at the cs-edge)
332      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
333    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
334      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
335      a maximum grid-scale Reynolds number.  Also, changes all length calculations
336      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
337      Suggested values of viscosity parameters found in mom_calc_visc.
338      Many new viscosity diagnostics available.
339    
340    checkpoint57s_post
341    o Add clearing-house for viscosity calculations, mom_calc_visc and
342      correct numerous bugs in LeithD and Smagorinsky discretizations.  
343      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
344      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
345      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
346      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
347      The Strain-Tension form is now called with useStrainTensonVisc=.true.
348      ViscAhStrain and viscAhTension are now retired.
349    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
350    o In response to JMC's bug report, genmake2 now ignores any soft-links
351      that it finds in the *current* directory when searching for files.
352      Soft-links found in any other source directories will still work as
353      they did before.
354    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
355      a C routine to unlimit the stack size
356    o mnc-ify pkg/aim snapshot vars
357    o mnc-ify pkg/land as requested by Daniel
358    o various changes to mnc including:
359      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
360      - output can now be grouped so that all files within a group
361          change the ITER portion of their names in lock-step together
362      - can now read ("global") PER-FACE (in addition to PER-TILE) files
363          and works with both EXCH1 and EXCH2 (but needs more testing)
364      - writing works for all verification test cases w/ g77 on Linux
365    
366    checkpoint57r_post
367    o make MNC variable initialization happen earlier
368    o add diagnostics for (almost) each term of the momentum Eq.
369    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
370    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
371    o remove MINIMAL_TAVE_OUTPUT option ;
372      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
373    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
374      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
375    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
376    o add time-dependent SST, SSS control
377    o cost terms in ecco/ modularized (new cost_generic.F)
378    o cost_averages routines are modularized (new cost_averagesgeneric.F)
379    o new infrastructure for seaice model vs. obs misfits in seaice/
380      * driver from the_main_loop.F is seaice_cost_driver.F
381      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
382      * gradient check in Exp. 6a of natl_box_adjoint/
383    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
384      (see README file)
385    
386    checkpoint57q_post
387    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
388    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
389      - bug was reported by Jean-Michel and Ian Fenty
390    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
391      update exp. cpl_aim+ocn output.
392    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
393      Needed for high-res. runs with large global files
394      to be able to limit tapelev size
395    o Changed some tests for adjoint:
396      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
397      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
398      * global_ocean.90x40x15/ back to default 3-level checkpointing
399    o Modifications to enable scripted COMMON to MODULE conversion
400      * verification/OpenAD/code/ has necessary scripts and description;
401      * converts, compiles and runs successfully;
402    
403    checkpoint57p_post
404    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
405    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
406      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
407    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
408    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
409      (was already the case for dissipation with mom_vecinv,
410       and also the case for grad.PhiHyd when staggered-timeStep)
411      This will allow to put dissipation out-off the AB time-stepping.
412     Unfortunately, affects truncation error. Update output of exp. that "fails"
413      (cg2d matching number) and leave the others for later: front_relax(10),
414      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
415      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
416    
417    checkpoint57o_post
418    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
419      (2) its ready to be documented during the 20050801 DocFest
420    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
421      for ideal_2D_oce and lab_sea on linux_ia32_g77
422    o set to #undef CTRL_SET_OLD_MAXCVARS_30
423      in global1x1_tot/code_seaice_adj to access indices 32, 33
424      (worth another tag)
425    
426    checkpoint57n_post
427    o adding precip control xx_precip 32
428    o adding swflux control xx_swflux 33
429    o Replacing 10 forcing penalty cost routines by 1 generic.
430    o Implementing partitioning in time-mean and variable adjustment
431      for atmos. state.
432    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
433    o in natl_box_adjoint:
434      * updated exp 1 to 10
435        (but does not have time-mean vs. variable split results yet)
436    o updated global1x1/*_seaice_adj/
437      to incorporate latest changes
438    o enable useSingleCpuIO for mdsio vector routines
439      (applies in particular to tapelev I/O)
440    o removed inefficient K-loop in all active_file*control*.F
441    
442    checkpoint57m_post
443    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
444      and advect_cs (use EXCH-2 and standard cs-32 grid files).
445    o pkg/exch2: filling of face-corner halo regions is optional
446      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
447    
448    checkpoint57l_post
449     tag before updating tutorials (pre-release-2)
450    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
451       for output and interpolation of input fields onto model grid)
452    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
453       Affects results of exp. rotating_tank ; update output.txt.
454    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
455          and taking the square quantity and/or using a fraction-weight field.
456    o fix aim_diagnostics_init.F mate numbers.
457    o add mnc output capability to diagnostics/diagstat and update
458      our cvsignore files for the ACSII output generated
459    
460    checkpoint57k_post
461    o lab_sea now uses diagnostics package and provides a suite of
462      new EXF diagnostics output.
463    
464    checkpoint57j_post
465    o exf
466      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
467        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
468        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
469      * extended diagnostics output
470        - now includes all EXF variables
471        - hs, hl moved to common block
472        - separate S/R for diagnostics, called after ctrl vector is added
473        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
474        - EXFqnet contains true Qnet (i.e. includes qsw)
475      * updated verif. lab_sea, global_with_exf
476      * Rearranging hflux (exf_mapfields -> exf_getforcing)
477        to ensure that diagnostics sees a true EXFqnet
478    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
479    o diagnostics pkg: change pointers so that 1 diagnostic can be used
480      several times with different frequencies.
481    o mnc-ify the thsice package as requested by Daniel Enderton
482      - the monitor--MNC output needs work
483      - many attributes need to be added (most are currently blank)
484    o mnc-ify theaim_v23 package as requested by Daniel Enderton
485      - many attributes need to be added (most are currently blank)
486    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
487    o add Sadourny like discretization to the 4th.O vorticity advection scheme
488    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
489      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
490         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
491    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
492     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
493    
494    checkpoint57i_post
495    o Diagnostics package was changed: diagnostic allocation is now deactivated
496      by setting an empty file name in the namelist (used to be by setting 0 frequency)
497    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
498      add 1rst Order upwind vertical Shear.
499    o add a quick fix for A/B checkpointing in OFFLINE mode
500    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
501      end-run around the C/Fortran linking horror in eesup/src/timers.F
502    o added pkg/runclock: allows user to terminate run based on wall clock
503    o added non-hydrostatic scaling parameter: nh_am2
504    o pkg/my82: futile attempt to make results compiler-independent by adding
505      some "_d 0", etc. no effect.
506    o for mnc output, fill the 'T' coordinate var with myTime and create a
507      separate 'iter' variable for iteration count
508    o pkg/diagnostics:
509      add new capability: output of Global/Regional & per-level statistics ;
510      tested against monitor output (including land & thSIce) on various exp.
511    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
512    
513    checkpoint57h_done
514      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
515      data.diagnostics, data.gchem, data.ptracers) is done.
516    
517    o pkg/diagnostics: prepare for Global/Regional statistics.
518      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
519    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
520      and rename it: DIFFERENT_MULTIPLE
521    
522    checkpoint57h_post
523    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
524    o pkg/diagnostics: change output frequency, now in seconds (instead
525      of Nb of iterations). This requires to change data.diagnostics.
526    checkpoint57h_pre
527    
528    o in mnc, let the user create the output dir if both mnc_outdir_date
529      and mnc_outdir_num are false
530    o add fflags() to pkg/diagnostics which allows one to specify, on a
531      per-file basis, the file precision [default behavior is unchanged]
532    o added diagnostics to pkg/kpp, including computation of mixed layer
533      depth based on a temperature/density criterion
534    o updated verification/natl_box to test the new pkg/kpp diagnostics
535    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
536    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
537    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
538      not mnc -- this mistake was found by JMC and is now corrected
539    
540    checkpoint57g_post
541    o add Adams-Bashforth 3rd Order time stepping:
542      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
543      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
544    checkpoint57g_pre
545    
546    o make lambda[Theta,Salt]ClimRelax spatially varying
547      (default remains spatially uniform constant based on tau)
548    o added new control variables
549      * init. uVel, vVel, etanN
550      * lambda[Theta,Salt]ClimRelax
551    o separate masks used for ctrl_pack/unpack 'from write_grid' output
552      (suggested by G. Forget)
553    
554    checkpoint57f_post
555    o add parameter "baseTime" = model base time = time at iteration zero
556      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
557      account for baseTime shift
558    o move Coriolis arrays from PARAMS.h to GRID.h
559    checkpoint57f_pre
560    
561    o mnc-ifying the seaice package
562    o introduced an alternative length scale calculation for use in the limiting
563      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
564    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
565    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
566      as well as grad(vort3).  Made it compatible with both approximate form
567      for the cubed sphere and full form of these gradients.  Added flag
568      useFullLeith to select between approximate and full form.  
569    o add "d0" in getcon.F to reduce differences between compilers/platforms
570      update output.txt of exp. fizhi-gridalt-hs
571    o change port_rand funtion to allow to set the seed.
572    o fix obscure MNC bug involving conversion between reals and integers
573      - it caused no problems with certain (eg. gcc, ifc) compilers but the
574        new version is now more standards-compliant
575    o adjoint-related modifications
576      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
577      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
578      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
579    
580    checkpoint57e_post
581    o Adding eddy stress controls a la Ferreira et al.
582    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
583    
584    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
585      update output.txt of exp. fizhi-gridalt-hs
586    o add more "Z" dimensions and associated coordinate vars to MNC
587    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
588    o parameter calendarDumps: when set, approximate months (30-31 days) and years
589      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
590      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
591      months and years.  Requires pkg/cal.
592    o diagnostics: add pickup functionality
593      - off by default for backwards compatibility
594      - current version only uses MDSIO -- MNC will be added
595    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
596    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
597    
598    checkpoint57d_post
599    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
600    o modify verification/ideal_2D_oce so that it tests the creation of mnc
601      output from the diagnostics package
602    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
603    o make genmake2 more portable by using ".$FS" instead of ".f" for more
604      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
605    o add coordinate variables to the MNC output from the diagnostics package
606    o change MNC-flags default value: true when useMNC=TRUE
607    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
608      the ability (off by default) to read the grid information using MNC
609    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
610    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
611    o do snap-shot diagnostics at the middle of the time-interval (instead of
612      at the end).
613    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
614      new test for AIM with thSIce + slab-ocean
615    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
616    o move state variable diagnostics to the beginning of the time step ;
617      (note: still needs some work specially for snap-shot diagnostics)
618      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
619    
620    checkpoint57c_post
621    o Change testing option (-ieee) to get closer agreement between g77 & ifort
622    o generate new output.txt files on faulks with g77 & the new -ieee option
623    checkpoint57c_pre
624    
625    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
626      update output.txt of exp. global_ocean.90x40x15
627    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
628      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
629    o add saltFlux(+File) forcing capability with periodicExternalForcing
630    o allow to use pkg diagnostics for GM-Redi & ThSIce output
631    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
632    o improvements for the MNC output from DIAGNOSTICS:
633      - correct handling of the unlimitied dimension
634      - all dims now have associated coordinate variables
635      - variables located at U, V, and Corner ("Z") points are now written
636        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
637        *all* data points are output
638    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
639    o added pkg/seaice/seaice_monitor.F
640    o mdsio_readfield.F can now read files visible only to master MPI process.
641    o pkg/seaice: some test code for ice-modified ocean stress
642    o exf_getffields interpolation defaults to bilinear for all scalar forcing
643      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
644      spurious negative numbers for precipitation and humidity.  Will cause
645      some small numerical differences for integrations using pkg/exf/exf_interp.F.
646    o pkg/ctrl/
647      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
648        May be enabled via doPackDiag
649      *  introduce z-scaling of
650         + gradient (doZscalePack) and
651         + control (doZscaleUnpack)
652    o pkg/mdsio/
653      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
654      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
655    
656    checkpoint57b_post
657    o simplify options in diagnostics_fill arguments (remove weird combinations)
658    o fix MNC coordinate variables so that they now contain per-face index
659      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
660      general, EXCH2 grids are only aligned to a "local" coordinate system
661    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
662    o Implement instantaneous output within pkg diagnostics:
663      setting a negative frequency in data.diagnostics produces
664     "snap-shot" output (as opposed to time-average if freq > 0)
665    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
666      NOTE: change ptracer diagnostics name: use 2 characters to work with
667            more than 9 tracers. Add also diagnostics of advect & diffus flux.
668    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
669      becomes the coordinate variable for the 'T' dimension
670    o add CF-style coordinate variables to MNC
671      - just a first cut:  numbers are meaningless on the cubesphere and
672        missing along the T axis but otherwise it works!
673    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
674    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
675    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
676      this is based directly on what the model compute, so that the content of
677      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
678    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
679    o clean up build options files for SunOS, in particular
680      - remove -traditional from xmakedepend
681      - change -xarch=v9 to -xarch=native for f77
682      - restore use of make (not gmake)
683      - add CC=gcc if using g77
684    o changes per discussion of AM, JMC, & EH3 today:
685      - move redundant "grid" variables out of "state" -- in preparation of
686        creating proper CF-style coordinate variables and in recognition
687        that any/all grid variables can be easily copied (eg. w/NCO) from
688        the grid files into any of the other NetCDF files
689      - *always* output grid variables with MDSIO (this will eventually be
690        changed)
691      - output MNC grid file if useMNC is true
692    o every instance of _END_MASTER() has been found and replaced with
693      _END_MASTER( myThid ) in order to satisfy certain picky Sun
694      preprocessors
695    o re-arrange diagnostics pkg initialisation:
696     - allow each package to extend the available diagnostics list
697     - add some checking and fix small problems (multi-threaded, ...)
698     - new S/R diagnostics_fill (replace fill_diagnostics):
699       look through the short list of active diag. (instead of the long list)
700       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
701    
702    checkpoint57a_post
703    o this set of changes restores TAMC compatibility
704      tested for global_ocean.90x40x15 adjoint on trough
705      (what a pain)
706    
707    checkpoint57a_pre
708    o some modifs in tools/build_options for sunos
709    o call ctrl_pack for ctrl at end for optimcycle=0
710    
711    checkpoint57
712    o add horizontal bi-harmonic viscosity for vertical velocity
713      - new parameter viscA4W (defaults to viscA4)
714      - affects only non-hydrostatic code
715      - to be done: no-slip lateral boundary conditions
716    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
717    o implement Implicit Vertical advection for pTracers
718    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
719      (implemented also for implicit vertical diffusion & advection)
720    o OBCS: extend application of tracer open boundary conditions
721      to a strip beyond the boundary of width Olx/Oly
722    o add call monitor to TAF set of required calls (flow directives)
723      and include in natl_box_adjoint
724    o untangle a few ifdefs related to cost, ctrl, autodiff
725      untangel a few ALLOW_ECCO_OPTIMIZATION
726    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
727      (theta2, salt2 in ecco_cost_weights)
728    
729    checkpoint56c_post
730    o OBCS as control variables
731      - update ctrl_ad_diff.list, obcs_ad_diff.list
732      - remove balance of obcs controls from default
733      - fix index bug nobcs in ctrl_init
734      - fix dummy fields filen in ctrl_pack
735      - add dummy weights for obcs
736    o lsopt: comment out fort.94 output
737    o optim:
738      - remove unnecessary header files
739      - adjusted namelists
740      - add xerbla.F to Makefile
741    o exf:
742      - multiple modifications of exf_check_range
743      - unit change in exf_init_runoff from [m/year] to [m/s]
744    o mdsio:
745      - i/o-vector change debugLevel from debLevA to debLevB
746    
747    checkpoint56b_post
748    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
749      is called from DO_THE_MODEL_IO
750      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
751      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
752      - clean up PTRACERS_WRITE_TIMEAVE a little
753    o add another verification experiment that tests both the cfc-pkg and
754      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
755      reactive tendencies treated inline with regular timestepping
756    o testreport previously did a lousy job of comparing small numbers, so
757      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
758      implemented in the little c-progam tmp_cmpnum.c which is embedded in
759      testreport.
760    o ptracers_monitor: bug fix for MPI
761    
762    checkpoint56a_post
763    o GCHEM: finish reorganizating the package
764      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
765        (introduces another 3D-array for each passive tracer, but only if
766        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
767        gchemTendency is not needed because the timestep is done separately)
768      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
769      - GCHEM is now---more or less cleanly---separate from PTRACERS
770      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
771        so clear to me how that should be done in a general way.
772    o CFC: improve formatting of output in CFC_ATMOS
773    o PTRACERS:
774      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
775        that ALL experiments with ptracers enable can be checked. This makes
776        GCHEM_MONITOR obsolete.
777      - include a runtime parameter PTRACERS_monitorFreq that defaults to
778        monitorFreq
779      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
780    o add PTRACERS (PTR0[1-5]) to testreport output
781    o exf_check_range:
782      * default changed to .TRUE.
783      * will check values for niter0 if debLevA, every timestep if debLevB
784      * STOP in exf_check_range if 'out of range'
785      * range chosen generous to allow for potential extema
786      TBD: a version with stricter range
787           permitted range would be runtime parameters
788    o GMredi:
789      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
790      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
791      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
792    o GCHEM:
793      - move call to GCHEM_FORCING_SEP, so that it is now called before
794        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
795      - introduced a useGCHEM runtime flag and applied it everywhere.
796      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
797        this flag is now only visible within GCHEM-pkg routines.
798      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
799        be replaced by a 3D array that is computed before thermodynamics; for
800        this, the tracer ID iTracer had to be included into the parameter list
801        of ptracers_forcing
802      - set up forward_step to call gchem_forcing, that will replace
803        gchem_forcing_int in ptracers_forcing
804      - cleaning up
805    o small cleaning of exch2: remove files that are also in eesupp/src
806    
807    checkpoint56
808    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
809    o mnc: cleanup "full" files--fixes out-of-memory problem
810    o ECCO-GODAE
811      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
812      * fully merged and updated from SIO code
813        windstress sign change affects
814        - exf_inscal_[u/v]stress
815        - sign of xx_tau[u/v] adjustments
816        - signs in cost_scat
817      * ctrl_get_gen: avoid update of tau[u/v] for first few days
818      * natl_box_adjoint updated and compressed
819      * 2-level checkpoint switch added
820        (tested in EXP. 1 of natl_box_adjoint)
821      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
822    o SVD
823      * first complete, non-hacked version for SVD calculations
824      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
825        performed via direct access files admtlm_vector.it????
826        (via ctrl_[un]pack)
827      * optimcycle is used for ARPACK iteration counter
828        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
829      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
830        and add linear transforms where necessary
831      * controls are initial/final SST, SSS (can be extended; need to check
832        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
833    o mdsio: filename info to both stderr, stdout
834    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
835      from sign change
836    
837    checkpoint55j_post
838    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
839      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
840    o add consistent build directories and .cvsignore files to verification
841    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
842    o make all subroutines 30 or less characters in length for certain older
843      compilers to work (a thorough search only turns up two routines in
844      pkg/ptracers)
845    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
846      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
847    
848    checkpoint55i_post
849    o change arrays for total vertical diffusivity (2.D if explicit,
850      3.D if implicit) ; each ptracer uses its own background value.
851    o added mnc/NetCDF output capability to ocn_compon_interf
852      - added bits to verification/cpl_aim+ocn so that it can run on
853        ITRDA and other clusters without the mpirun "-wd" option
854    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
855      configuration
856    o give MNC the ability to create additional files rather than
857      exceeding a specified file size limit "MNC_MAX_FILESIZE"
858      - the default is just less than 2GB which is a practical limit
859        on many systems
860    o Compute the non-local term using either KPP vertical diffusivity (=default)
861       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
862    
863    checkpoint55h_post
864    o add verification test "vermix"
865    o remove all the *_ioinc flags and replace with the single global
866      outputTypesInclusive flag
867    o allow to set a vertical profile of vertical diffusivity for T & S
868    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
869    o useMNC moved from data.mnc to data.pkg
870    
871    checkpoint55g_post
872    o Renaming carbon AD experiments to comply with testreport conventions
873    o Updating adjoint of Held-Suarez hs94.1x64x5
874    o Fixing directives for non-ECCO forward_step, after ECCO directives
875      have been fixed to avoid recomp. of do_oceanic_phys
876      Works well for global_ocean.90x40x15,
877      but recomp. issue remains for carbon
878    o Updating adjoint output for natl_box_adjoint after
879      pkg/ecco has been modified (see taga c55d_post)
880    
881    checkpoint55f_post
882    o rename to timeave_init_fixed
883    
884    checkpoint55e_post
885    o some delicate re-shuffle of store directives to avoid one
886      extra call of do_oceanic_physics
887      affects ecco_the_main_loop.F, do_oceanic_physics.F
888      checkpoint_lev1_directives.h
889    o NB: this may break global_ocean adjoint temporarily,
890      but it is clear how to fix it. Will do later, need this now.
891    
892    checkpoint55d_post
893    o ECCO specific cost function terms (up-to-date with 1x1 runs)
894    o ecco_cost_weights is modified to 1x1 runs
895    o modifs to allow observations to be read in as
896      single file or yearly files
897    o enable to read exf forcing fields as either
898      single file or yearly files (flag useExfYearlyFields)
899    checkpoint55d_pre
900    
901    o switch between 2-level and 3-level checkpointing
902    o add ability of MNC to write local and "partial" (eg. 2D slices where
903      the full 3D field is never actually stored) arrays to NetCDF files
904      with the correct (that is, the complete multi-dimensional) set of
905      array indicies
906      - used in mom_vecinv() to write the diagFreq output
907      - tested (demonstrated) in verification/aim.5l_cs
908    o further mnc-ification
909      - add verification/lab_sea to the list with mnc setups
910      - fix undefined mnc v-names in cd_code
911      - add kpp to mnc output (both snapshot and timeave)
912    o non-hydrostatic code
913      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
914        in calc_gw.F
915      - defaults to viscAh
916      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
917        friction or Leith) in non-hydrostatic mode, as long as there is
918        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
919    o pkg/cost
920      extend simple cost functions to treat time mean quantities
921      (T,U,V) via cost_accumulate_state from cost_tile
922    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
923        be 2 times larger than the minimum size the advection scheme requires.
924        now get a perfect conservation of salt in advect_cs test-exp (updated)
925    o GGL90 (Gaspar's TKE mixed layer)
926      - add horizontal diffusion of TKE, requires exchanges in
927        do_fields_blocking_exchanges, horizontal diffusivity is zero by
928        default. In OPA there is no horizontal diffusion of TKE but the
929        mixing coefficients are computed from a horizontal average of TKE of
930        6 points or so. I think that diffusion has a little more physical
931        justification.
932      - clean up ggl90_calc in the hope of reducing memory usage (this hope
933        was in vain)
934      - mask tke-variable in ggl90_init
935    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
936    o fix biharmonic diffusion on CS-grid.
937    o more obcs stuff
938      - added obcs_external_fields_load as an alternative to the EXF-pkg option
939        for reading boundary values. This routine is called from
940        obcs_prescribe_read
941      - updated obcs_check
942      - changed sponge layer relaxation parameter units for days to seconds
943      - turned off sponge layer by default
944      - changed argument list of OBCS_CALC to myTime+deltaTclock
945      - fixed about 35 bugs in obcs_external_fields_load
946    
947    checkpoint55c_post
948    o obcs stuff
949      - new runtime flags useOBCSprescribe, useOBCSbalance
950      - re-arranged obcs_calc
951      - moved exf_getobcs to obcs_prescibe_read
952        obcs_prescibe_read is called after ORLANSKI stuff
953        and independent of it (executable can contain all).
954      - updated obcs_check
955      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
956        These may be necessary only if tangential velocities are
957        prescribed at OB, not sure, needs testing.
958    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
959      which simplifies the calls and passes the ifc check-bounds test
960    
961    checkpoint55b_post
962    o add a 2D scalar, Z location, exchange_2 routine.
963    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
964      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
965      affects advect_cs results (for the wrong reason): update output.txt
966    o use a more standard discretization for biharmonic viscosity ;
967     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
968      affects results of dome set-up: update output.txt
969    o fix gad_advection.F (CubedSphere part), back to version 1.23
970    o fix bug in mom_vi_del2uv.F (CubedSphere part).
971    
972    checkpoint55a_post
973    o merged code to
974      * prescribe/read time-dependent open boundaries
975        (works in conjunction with exf, cal)
976      * sponge layer code for open boundaries
977      * each boundary N/S/E/W now has its own CPP option
978        (healthy for the adjoint)
979    
980    checkpoint55
981    o up-to-date adjoint of previous breaks
982      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
983      - global_ocean_ebm: adjoint still needs fix (TLM ok)
984      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
985      - carbon: * remove tr1-related adjoint verification
986                * add ptracer as control variable
987    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
988      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
989    
990    checkpoint54f_post
991    o in verification/carbin/ remove experiment related to
992      ALLOW_PASSIVE_TRACER (array tr1 etc)
993      code_ad/ input_ad/ results_ad
994    
995    o add two new packages
996      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
997        + subject to optimization (memory)
998      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
999        + subject to reordering (many GOTOs in the original code)
1000        + so far opps is called for every (i,j) point, and then operates in
1001          the vertical; one may want to reorder the scheme in order operate in
1002          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1003          fields)
1004    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1005      - all verification tests compile and run with linux_ia32_g77
1006      - defaults are compatible with current input files--nothing
1007        should change if you were not previously using MNC
1008      - MNC output has been added in numerous places (eg. timeave)
1009        but there are still a few writes not yet do-able with MNC
1010        (this is in progress)
1011      - flags now allow for either/or/both use of MDSIO and MNC and
1012        documentation will soon follow
1013      - numerous small formatting cleanups for ProTeX
1014    o add version info (via BUILD_INFO.h) to MNC and stdout
1015    
1016    checkpoint54e_post
1017    o add two new packages
1018      - pp81 (Packanowski and Philander, 1981), Richardson number and
1019        stratification dependent mixing
1020      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1021      - these scheme operate in a similar manner as KPP (without ghat, of
1022        course), however there is only one diffusivity that is used for both
1023        temperature and salinity (and passive tracers)ç
1024    o add offline package
1025    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1026      provided by Stephanie Dutkiewicz
1027    o genmake2: add ability to search for C compilers and cleanup test output
1028      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1029    
1030    checkpoint54d_post
1031    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1032    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1033      leading to additional shift by 5 days each year of integration
1034       (i.e. leading to considerable offset over the years)
1035    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1036    o start with no AB and no initial filtering (staggerTimeStep):
1037      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1038    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1039      (external loading & cpl import/export stay in forward_step.F)
1040    o update coupling interface to work with new staggerTimeStep
1041    o change MDSIO ptracers_pickup.
1042    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1043    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1044    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1045    
1046    checkpoint54c_post
1047    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1048      this affects (truncation error) output.txt of test-exp:
1049       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1050    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1051    o change Qnet to always be the net heat flux, (+upward).
1052      affects (truncation error) output of natl_box exp.: updated
1053    o define the max number of passive tracers in PTRACERS_SIZE.h
1054    o start to test mnc routinely in exp0
1055    o add sea-ice loading (sIceLoad) as a new forcing field.
1056    
1057    checkpoint54b_post
1058    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1059       impressive on Altix and Opteron systems)
1060    o diagnostics can now write NetCDF files through the mnc package
1061    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1062    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1063    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1064      affects (truncation error) output of lab_sea & natl_box exp.: updated
1065    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1066    
1067    checkpoint54a_post
1068    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1069    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1070    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1071    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1072      + internal_wave (shift in writing cg2d_ini_res)
1073    checkpoint54a_pre
1074    
1075    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1076      - modified verification/lab_sea and natl_box_adjoint accordingly
1077    
1078    checkpoint54
1079    checkpoint53g_post
1080    o prepare splitting of thermodynamics: store convect.counter in common block
1081    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1082      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1083    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1084    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1085    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1086    o restore adjointability
1087    
1088    checkpoint53f_post
1089    o modifications that affect AIM experiment results (update output.txt):
1090      - no advection of S at top interface Nr (pkg/generic_advdiff)
1091      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1092    o AIM pkg:
1093      - include stability function into surf.Flux derivative relative to Tsurf
1094      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1095    
1096    checkpoint53e_post
1097    o merged cylindrical coord configuration
1098    o added rotating_tank experiment
1099    checkpoint53e_pre
1100    
1101    checkpoint53d_post
1102    o faulks upgraded: re-generate output.txt that have changed:
1103       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1104    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1105    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1106    o added Sadourny discretization of Coriolis
1107      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1108      - re-enabled use of omega3 (useAbsVorticity)
1109    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1110      vector-invariant equations
1111      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1112    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1113      hopefully without new bugs
1114      - still to do: biharmonic friction for non-hydrostatic w
1115    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1116    o regenerated output for global_ocean_ebm (using -ieee)
1117    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1118      of mom_common/
1119      - simple re-arrangement of instructions within computing loop
1120    checkpoint53d_pre
1121    
1122    checkpoint53c_post
1123    o new version of coupler for AIM+thSIce and Ocean models
1124     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1125     - land: change Evaporation of snow
1126     - aim with thSIce: fix bug in snow-precip.
1127    o changes to calc_gw.F
1128     - bug fix for w^2 term near the bottom boundary
1129     - (hopefully) improve the lateral slip boundary condtions for use with
1130        partial/looped cells
1131      - because the bug fix changes two verification experiments anyway (exp5
1132        and plume on slope), change the lateral boundary condition from half slip
1133        to the value of no_slip_sides
1134    o ebm package wasnt quite up to the parallel task. Fixed that.
1135    o Adjoint of EBM package + verification
1136      * TLM OK
1137      * ADM not sufficient accuracy yet (needs further testing)
1138    
1139    checkpoint53b_post
1140    o Commiting new energy balance model to repository
1141      * package is pkg/ebm
1142      * verif. is verification/global_ocean_ebm
1143      * references are in ebm_driver.F
1144    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1145    C        Global thermohaline circulation. Part I:
1146    C        Sensitivity to atmospheric moisture transport.
1147    C        J. Climate 12(1), 71-82
1148    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1149    C        Global thermohaline circulation. Part II:
1150    C        Sensitivity with interactive transport.
1151    C        J. Climate 12(1), 83-91
1152    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1153    C        Destabilization of the thermohaline circulation
1154    C        by atmospheric eddy transports.
1155    C        J. Climate 7(12), 1870-1882
1156    o Will need long integration testing.
1157    checkpoint53b_pre
1158    
1159    o created pkg/mom_common in preparation for variable viscosity code
1160    o renamed and split ini_mnc_io
1161    o pkg/land: only liquid water can diffuse or run-off
1162    o AIM using land: soil wetness availability account for snow
1163    o added printMapIncludesZeros to EEPARMS namelist
1164    
1165    checkpoint53a_post
1166    o restore TAMC compatiility for exf_constants.h
1167      (no usage of _d in .h)
1168    o Additional storing in KPP in an attempt to fix
1169      TAMC problem with adjoint of KPP code.
1170      (no success...)
1171      Identical code works fine with TAF.
1172    o Fixed verification/natl_box_adjoint experiments.
1173      Initial conditions for Experiments 4 and 5 are now
1174      set to "SEAICE_initialHEFF=0", which is more reasonable,
1175      and hence gives results closer to that of Experiment 2.
1176      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1177    
1178    checkpoint53
1179    o stable checkpoint with up to date adjoint
1180      TLM tests only run for 1st grdchk at the moment. Its unclear if
1181      this is a code problem or a problem with resetting code for g_
1182      variables that is being autogenerated wrong.
1183      Otherwise:
1184       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1185       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1186         are both still in chaos following their security messes.
1187    
1188    checkpoint52n_post
1189    o various build (mostly genmake2) changes including:
1190      - ability to build/run more easily within Cygwin and MacOS X
1191      - more complicated Makefiles with a stronger dependence on Gnu Make
1192    o pkg/seaice modifications
1193      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1194        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1195        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1196      - changed proxy for geostrophic velocity and updated
1197        verification/lab_sea/results/* accordingly
1198      - removed ADI dynamic solver from pkg/seaice
1199      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1200        they caused a segmentation fault under certain circumstances
1201      - removed unused field WATR
1202    o bug fix in exf-package:
1203      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1204         now reflect that.
1205    o small fixes in the cal-package:
1206      - set reference date to first of January for the 'model'-calendar
1207      - failing of cal_CheckDate in cal_FullDate now actually results in a
1208        warning
1209    o small modifications in exf-package to increase flexibility:
1210      - change climtempfreeze from a constant to a runtime parameter that
1211        is specified in data.exf_clim (default = -1.9)
1212      - introduce runtime parameter windstressmax (default = 2.0) that is
1213        specified in data.exf
1214    o fix in pkg/thsice:
1215      - update Evap (Tsf changes) to be consistent with Latent heat flux
1216      - maintain snow precipitation unchanged (even if Tsf >=0).
1217     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1218    
1219    checkpoint52m_post
1220    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1221      this does not change any of the results, because myIter=0 in swfrac always
1222      lead to jwtype=2 (the default anyway), but the call makes little sense
1223      as a default
1224    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1225    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1226      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1227    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1228    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1229    o extending useSingleCpuIO option to work with new exch2 I/O format
1230      - old-style, missing-tile I/O is still accessible by defining CPP
1231        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1232    o monitor package can write to NetCDF files and/or STDOUT
1233    o fix re-definition bug in MNC_GRID_INIT_ALL()
1234    o doc/api_reference added
1235      - a framework for building an API Reference Manual using all
1236        the "protex" comments embedded in the code
1237      - see pkg/generic_advdiff, pkg/mnc for examples
1238    o MNC:
1239      - make myThid the last argument for all subroutines
1240      - new default for the grid files: NO halos
1241      - add useMNC and other run-time flags
1242      - separate per-file-group handling of the unlimited dimension
1243      - early initialization of MNC w/ flags read at the eeboot stage
1244        and lookup tables set in initialize_fixed
1245      - write all MNC output to a freshly-created directory
1246    o thermodynamics sea-ice (thsice) is now tested with testreport.
1247    o test exp. advect_cs: use the standard cs32 grid ; update output.
1248    o Added functionality to grdchk:
1249      pick global i,j,k position (or nearest wet) where to perform check.
1250    
1251    checkpoint52l_post
1252    o new land formulation:
1253      a) use ground enthalpy as prognostic variable to ensure exact
1254         energy conservation.
1255      b) account for water temperature and for latent heat of freezing
1256         in all processes (rain, run-off, ground storage)
1257      c) compute surface and ground temperature implicitly.
1258    o aim_v23 modification for new land model:
1259      a) Treat separately land / ocean / sea-ice surface fluxes
1260         to allow implicit computation of land & sea-ice surface temp.
1261      b) add snow precipitation.
1262    checkpoint52l_pre
1263    
1264    o fix problem (when 1 tile is empty) in min/max monitor.
1265    o fix bug in timeAve (u,vZetatave in common block)
1266    o no restoring terms under ice for pkg/seaice
1267    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1268    o bug fix for pkg/seaice pickups
1269    o change MNC call locations and add coordinate attributes
1270    o mask vorticity at the corner ; affects global_ocean.cs output
1271    o fix ini_curvilinear_grid ; test CS experiments with mpi
1272    o aim.5l_cs: modify sea-ice fraction input file ; update output
1273    o exf: Adding simple range check routine for exf fields after read
1274    
1275    checkpoint52k_post
1276    o removed top-level directory "diags"
1277      - we migrated these functions to pkg/timeave a long time ago
1278    o fixed bug introduced in pkg/monitor
1279    o accuracy ctrlprec = 32 insuffient for gradient checks using
1280      averaged fields (I/O via cost_averages)
1281      -> use ctrl.h in active_file*.F to control I/O precision.
1282    o paramter list of CALL ADTHE_MAIN_LOOP
1283    o added initial do_the_model_io to ecco
1284    o set all ...Freq to zero after cost_final
1285      taveFreq, dumpFreq, pChkptFreq
1286    o MAIN and ECCO differentiability restored
1287    
1288    checkpoint52j_post
1289    o fix nchklev in tamc.h for global_ocean...
1290    o Bringing flow and store directives up-to-date
1291    o Really weird thing!
1292      call do_the_model_io from the_main_loop with parameters
1293      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1294      TAF places a faulty re-call of initialise_varia
1295      after cost_final call which should not be there!
1296    checkpoint52j_pre
1297    
1298    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1299      error messages
1300    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1301    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1302      debug output
1303    o modfied mdsio_writefield.F to handle non-global files under exch2
1304    o update AIM Cubed-Sphere exp (aim.5l_cs):
1305      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1306    o update AIM Equatorial Channel exp:
1307      use standard aim_v23 pkg and change the SST fields to be more realistic.
1308    o globalFile now works with exch2
1309    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1310      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1311    o limit timeave output for hi-res integrations
1312    
1313    checkpoint52i_post
1314    o removed CPP_EEOPTIONS.h from verification/*/code
1315    o updated the tiling for global_ocean_pressure
1316    checkpoint52i_pre
1317    
1318    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1319      the old pkg/aim).
1320    
1321    checkpoint52h_pre
1322    o shortened offending lines in exch2_send_rx?.template
1323    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1324    o genmake2: add build & execute test for NetCDF code
1325    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1326      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1327    o added useSingleCPUIO flag to monitor.F and mon_out.F
1328    o added temporary hack for sea-ice dynamics on the cube:
1329      metric terms are ignored and it is assumed that
1330      there is no sea-ice on cube faces 1, 2, 4, and 5.
1331    
1332    checkpoint52f_post
1333    o added exch2 cube routines to pkg/exch2
1334    o modified hs94.cs-32x32x5 to use it
1335    o added new grid files to hs94.cs-32x32x5
1336    checkpoint52f_pre
1337    
1338    checkpoint52e_post
1339    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1340      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1341    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1342      to work with implicit vertical advection and AB ;
1343    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1344    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1345     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1346    checkpoint52e_pre
1347    
1348    o fix bug in impldiff when Nr=1 or Nr=2.
1349    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1350    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1351    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1352      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1353    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1354    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1355    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1356    
1357    checkpoint52d_post
1358    o re-tiled many expts to allow comparison in multi-processor mode
1359      - updated output accordingly
1360      - changed hs94.128x64x5 to use intial T from file rather than use the
1361        random number generator
1362    o add infrastructure in model routines for fizhi and gridalt packages
1363    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1364    o changes to permit hi-res, cubed-sphere, configuration
1365      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1366      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1367      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1368        of surface winds for the cube
1369      (A verification experiment, based on global_ocean.cs32x15, but with
1370       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1371       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1372       complete with example surface forcing files and matlab scripts to look
1373       at the output and compare it with that of global_ocean.cs32x15.)
1374    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1375       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1376       to conform to the common rule.
1377    o check-in the first version of the coupler + interfaces for multi-components
1378       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1379       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1380       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1381       - ocean and atmos. share the same horizontal grid (no interpolation).
1382       - exchanges between component and coupler is done in forward_step
1383    o new verification experiment, cpl_aim+ocn:
1384       coupled ocean - AIM atmosphere on cs32 grid.
1385    
1386    checkpoint52d_pre
1387    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1388    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1389    
1390    checkpoint52c_post
1391    o Fixing OPTIONS files for use of exf:
1392      - ALLOW_ECCO not needed
1393      - ECCO_CPPOPTIONS.h should not be included from
1394        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1395        as has been the case in the past
1396      - All cal/exf related options are currently set in
1397        single header file. Should remain so until we
1398        agree on a consistent new policy.
1399    o Removed all CPP options for cal package.
1400      cal has no more CPP options.
1401    o modified STOREs in GAD_ADVECTION
1402    o corrected key comp. for passkey
1403    
1404    checkpoint52b_post
1405    o new version: "thsice" of thermodynamic sea-ice pkg:
1406     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1407     - modify fluxes but do not change theta directly;
1408     - light cleaning of bulk_force pkg (still needed with thsice).
1409     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1410       + output_thsice.txt to test thsice & bulk_force pkgs.
1411    o put back grid & coriolis monitor output.
1412    checkpoint52b_pre
1413    
1414    o call "do_the_model_io" at the beginning (=> dump initial state)
1415    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1416    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1417      (need info on NUMBER_OF_PTRACERS)
1418    o missing PTRACERS headers in some routines
1419    o default tamc.h in pkg/autodiff supposed to crash
1420      to ensure proper customization
1421    
1422    checkpoint52a_post
1423    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1424      - moved surfaceTendencyTice from pkg/seaice to main code
1425      - subroutine FREEZE_SURFACE now limits only surface temperature
1426        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1427        => new output.txt for global_ocean.cs32x15 & global_with_exf
1428      - keep the old version of FREEZE for backward compatibility;
1429        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1430      - corresponding modifs for TAF directives
1431    o added surface flux output variables to TIMEAVE_STATVARS
1432    o time-averaged output for pkg/ptracers
1433    o fix problem with ECCO-related divided adjoint
1434      snapshot file was missing some ad-variables,
1435      but no warning issued by TAF
1436    
1437    checkpoint52a_pre
1438    o some bug fixes for #undef REAL4_IS_SLOW
1439    
1440    checkpoint52 = ecco_c52_e35
1441    o after testing adjoints of checkpoint51u_post
1442    
1443    checkpoint51u_post
1444    o this is the post-merge tag of the ecco-branch
1445      (needs another clean checkout and re-testing)
1446    o various natl_box_adjoint configs and results
1447      but no input fields
1448    o obcs adjoint not yet merged!
1449    o adding ECCO global 1x1 and 2x2 degree configs
1450    o updated/extended some store directives for seaice
1451    o pkg/ecco now containes ecco-specific part of cost function
1452    o top level routines the_main_loop, forward_step
1453      supersede those in model/src/
1454      previous input data.cost now in data.ecco
1455      (new namelist ecco_cost_nml)
1456    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1457    
1458    checkpoint51t_post
1459    o this is the pre-merge tag of the ecco-branch
1460    
1461    checkpoint51s_post
1462    o cleanup: removed various obsolete #define-s
1463    o pkg/grdchk
1464      - renamed 'ph-grd 3' to 'grad-res'
1465      - merged from ecco-branch
1466        (remaining bug fixes for obcs gradient checks)
1467      - additional high-precision output for testreport
1468        (grep for 'precision_grdchk_result')
1469    
1470    checkpoint51r_post
1471    o cleaned up or removed CPP_OPTIONS.h files
1472    o updated results for some of the tests to reflect the new
1473      optfiles (-ieee: -O0 instead of -O3)
1474    
1475    checkpoint51q_post
1476    o cd_code:
1477      - moved cd_scheme.F -> cd_code_scheme.F
1478      - separate read_checkpoint from cd_code_ini_vars.F
1479      - separated cd_code part from write_checkpoint
1480      - updated AD_SOURCE, generated .flow
1481      - added CD_CODE_VARS.h to the_main_loop
1482      - Moving cd_code specific store dir.s to pkg/cd_code
1483    o ctrl package totally restructured
1484      - pack/unpack now optional and decoupled from
1485        xx_/adxx_ I/O
1486      - ctrl_pack/unpack cleaned
1487        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1488      - confined inclusion of AD_CONFIG.h to where necessary.
1489    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1490    
1491    checkpoint51p_post
1492    o create initial cd_code package
1493      - WARNING: the initialization of fields within packages
1494        is broken because INI_FIELDS (where READ_CHECKPOINT is
1495        called) is called *before* PACKAGES_INIT_VARIABLES.
1496        This seems to be backwards since
1497        1) its important to initially zero the entire field including
1498           the "halo" region
1499        2) zeroing needs to be done *before* reading pickup info
1500           and the pickup call might or might not happen in any
1501           particular run
1502      - this needs an overhaul for R2
1503    o cleanup verification/*/code/GMREDI_OPTIONS.h
1504    o cleanup testreport
1505    
1506    checkpoint51o_post
1507    o bringing AD-related verif's up to date with genmake2
1508      - carbon/
1509      - global_ocean.90x40x15/
1510      - hs.94.1x64x5/
1511      - (front_relax/ )
1512    o (more) consistent directory structure for AD-related verif.'s
1513    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1514    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1515    o bug fix in find_alpha.F for MDJWF:
1516      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1517        change rho -> rho-rhoConst
1518      - replace call find_rho to find_rhonum
1519    o initialisation of rFlx extended to full array (required by TAF)
1520      and shifted to thermodynamics
1521    o removed PTRACERS.h in ptracers routine
1522    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1523    o Correcting initialisations for fVerU, fVerV.
1524    o helping TAF to recognize dependency on kUp for
1525      fVerU, fVerV
1526    o Replacing delZ by delR in pkg/ctrl/
1527    checkpoint51o_pre
1528    
1529    o undid all of cp51 pending some cleanups and discussion
1530    o added the [#include "AD_CONFIG.h"] statement to all files that need
1531       it for adjoint/tl #defines
1532     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1533     o removed tools/genmake since it no longer works
1534    
1535    checkpoint51n_post
1536    o modifications to make FREEZE flux visible to pkg/kpp
1537      - moved surfaceTendencyTice from pkg/seaice to main code
1538      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1539      - subroutine FREEZE now limits only surface temperature
1540        (this means new output.txt for global_ocean.90x40x15,
1541         global_ocean.cs32x15, and global_with_exf)
1542    o added surface flux output variables to TIMEAVE_STATVARS
1543    
1544    checkpoint51n_pre
1545    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1546    o added [#include "AD_CONFIG.h"] to all files that use the following
1547      defines:
1548      - ALLOW_ADJOINT_RUN
1549      - ALLOW_TANGENTLINEAR_RUN
1550      - ALLOW_ECCO_OPTIMIZATION
1551    
1552    checkpoint51m_post
1553    o incorporating changes to get TAMC/TAF working in genmake2
1554      - added new TAMC/TAF targets to the Makefile
1555      - various cleanups related to package handling
1556      - these changes should have no impact on the forward model
1557    
1558    checkpoint51l_post
1559    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1560     - faster algorithm for cal_addtime.F
1561     - higher precision arithmetic, where needed
1562     - pkg/exf *startdate variables changed from calendar date to
1563       model integration time
1564    
1565    checkpoint51l_pre
1566    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1567    o enable to apply restoring on S & T only in a latitude band.
1568    o update output (external_forcing_surf modif. change truncation errors)
1569       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1570    
1571    checkpoint51k_post
1572    o change default to: useNHMTerms=.FALSE.
1573     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1574       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1575     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1576        exp1, ideal_2D_oce
1577     - change data file of oceanic exp (leave the results unchanged for now)
1578       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1579    o set gravitySign automatically according to the vertical coordinate used
1580      (and change sign: back to "logical" value: +1 when R increases downward)
1581    o added an include barrier to the default CPP_OPTIONS.h and
1582      removed the #include "PACKAGES_CONFIG.h" from it
1583    o fix a bug in mom_fluxform (from chk51j_post)
1584    
1585    checkpoint51j_post
1586    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1587    o adjusted some flow directives (dynamics, thermodynamics)
1588    o added cubed-sphere case to test cost function
1589    o heckpoint_lev?_directives.h now include
1590      pkg-specific directives, whenever those are enabled.
1591    o Moving pkg-specific flow directives to corresponding pkg
1592      Moving pkg-specific differentiation list to corresponding pkg
1593      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1594      ---> conventions are
1595           - pkg_ad.flow
1596           - pkg_ad_diff.list
1597           - pkg_ad_check_lev?_dir.h
1598    
1599    checkpoint51i_post
1600    o merge of the branch-genmake2
1601      - knowingly breaks the older genmake
1602      - automatic generation of all ALLOW_${PKG_NAME} defines
1603      - new testreport supersedes older testscript
1604    o large number of package inclusion and header cleanups
1605    checkpoint51i_pre
1606    
1607    o new output for adjoin of global ocean vector invariant
1608    o fix for checkpoint of thermodynamic seaice and bulk_force
1609    o Steph gchem various cleanups
1610    
1611    checkpoint 51h_pre
1612    o fixed some single quotes
1613    o modify gchem pkg to be more versatile
1614    o modifications to clean up dic pkg
1615    o add pkg/cfc
1616    
1617    checkpoint51g_post
1618    o provide links for ARPACK and ADM*TLM
1619    o start removing verification/vero/
1620    o update AD-related stuff
1621      (in particular some IF-statements in model/src/ routines)
1622    o adding to verification/global_ocean.90x40x15/ adjoint of
1623      vector invariant setup
1624    
1625    checkpoint51f_post
1626    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1627    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1628      of tracer Green's fucntions for ocean inversion project.
1629    
1630    checkpoint51f_pre
1631    o Added on-the-fly spatial interpolation capability
1632        "USE_EXF_INTERPOLATION" to pkg/exf.
1633      - This is a temporary Cartesian-grid hack until
1634        the super-duper ESMF coupler becomes available.
1635      - See verification/global_with_exf/README for usage example.
1636      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1637        flags and modified pkg/seaice accordingly.
1638    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1639        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1640        non-local transport term.
1641    
1642    checkpoint51e_post
1643    o pkg/mom_vecinv:
1644      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1645      - add time-ave diagnostic of vorticity advection.
1646    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1647    o atmospheric geopotential: - include water vapor effect;
1648                                - use p^kappa in p* scaling.
1649    o land pkg: read initial state from files.
1650    o AIM : add stratospheric drag in the upper level
1651    
1652    checkpoint51d_post
1653    o change function ILNBLNK (=> last non-blank char.) to return zero
1654      (instead of the string length) when the string. char is empty
1655    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1656    o modif's to restore TAMC compatibility
1657      - avoid "_d" constructs in PARAMETER declarations
1658      - avoid interrupting lines by comment lines
1659    o Use cluster local disks for purely local I/O
1660      vs. globally visible disks needed for ctrl stuff
1661      (merged from ecco-branch)
1662      - new active_file_loc... and mdsio_..._loc routines
1663      - affected packages: autodiff, ctrl, grdchk, mdsio
1664    
1665    checkpoint51c_post
1666    o introducing integer flag debugLevel
1667      - debLevZero: suppress all output
1668      - debLevA: standard
1669      - debLevB: equivalent to current debugMode=.TRUE.
1670    o introducing pathname variable mdsioLocalDir for mdsio
1671      that can be specified at runtime
1672      (relevant for cluster I/O to local disk)
1673    `
1674    >>>checkpoint51b_post
1675    adjoint of ptracers
1676    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1677    o extended state in checkpoint_lev?, etc.
1678    o alternative ctrl/cost with tr1 or ptracer
1679    o new comlev1_bibj_ptracers
1680    o new ptracers.flow
1681    o made ptracers_forcing same as external_forcing_s
1682    o added verification for adjoint with ptracers
1683      - adm. grdchk fail so far
1684      - tlm. grdchk OK
1685      - checked tapelev/comlev recomputations: OK
1686    <<<checkpoint51b_pre
1687    
1688    checkpoint51a_post
1689    o added code for biogeochemistry package
1690      - new pkgs: dic, gchem
1691      - new subroutine in ptracers
1692    o modify code for biogeo packages
1693      - in model/src and pkg/ptracers
1694    
1695    checkpoint51
1696    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1697      - autodiff, ctrl, exf, grdchk, seaice
1698      kept separate packages
1699      - cost, ecco, obcs
1700    o updating verification/internal_wave, verification/lab_sea
1701      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1702    
1703    checkpoint50i_post
1704    o Preparing next differentiable checkpoint and sync
1705      of MAIN vs. ecco-branch
1706      - 1st step: this one is differentiable
1707      - 2nd step: next(! not this) checkpoint will have updated packages
1708                  from ecco-branch)
1709    
1710    checkpoint50h_post
1711    o new package "land": provide surface BC for AIM.
1712    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1713    o AIM: use true log-P extrapolation for near surface temp (= as in
1714        F.Molteni paper) ; update aim.5l_cs output.
1715    o New variable in PARM03 for more flexible pickups
1716    o somewhat cleaned package initialisation sequence for
1717      ctrl/ cost/ ecco/ in packages_... routines
1718    
1719    checkpoint50g_post
1720    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1721      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1722      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1723        made the default because of faster convergence than ADI
1724    
1725    checkpoint50f_post
1726    o exf totally restructured
1727      - replaced all exf_set_ routines by one generic exf_set_gen.F
1728        and made sure it's still differentiable
1729      - split exf_getffields.F into new exf_bulkformulae.F
1730      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1731      - updated adjoint/makefile and relevant verif. accordingly
1732    
1733    checkpoint50f_pre
1734     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1735          + change Evap over land. (update aim.5l_cs output)
1736     o added missing .cvsignores and made uniform across expts
1737     o changed configuration of tidal_basin_2d expt
1738     o added pkg/debug functions for tracing code in fatal crashes
1739     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1740     o new fn in pkg/monitor to stop model if solution grows too big
1741     o removed lots of single quotes from comments
1742    
1743    checkpoint50e_post
1744    o make KPP work with PTRACERS
1745     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1746       nearly a copy of kpp_transport_s
1747     - there is no analogue to SurfaceTendencyS, so I have to use
1748       gPtr(of the surface layer) instead
1749    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1750    checkpoint50e_pre
1751    
1752    checkpoint50d_post
1753    o change kpp output from multiple-record state files to single-record state
1754      files analogous to write_state.F
1755    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1756      analogous to the cg2d-related output.
1757    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1758      so that writing to internal file fn (with length 512) fails.
1759    checkpoint50d_pre
1760    
1761    checkpoint50c_post
1762    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1763    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1764    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1765    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1766    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1767    
1768    checkpoint50c_pre
1769    Merging from release1_p13:
1770    o bug fix for pkg/seaice dynamic solver
1771    o Added SEAICE_initialHEFF to pkg/seaice
1772    
1773    checkpoint50b_post
1774    o store u*,v* in gU,V instead of in guNm1,gvNm1
1775    o in order to put the momForcing out of the Adams-Bashforth:
1776      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1777      to timestep.F
1778    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1779    o re-generate output for highly sensitive test-exp:
1780       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1781    
1782    checkpoint50b_pre
1783    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1784    o corrected CPP option mismatch in exf_Bulk... functions for case
1785      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1786    
1787    checkpoint50a_post
1788    o Bug fix for merging between c50 and KPP.
1789      ikey was passed from thermodynamics to kpp_calc via
1790      common block rather than being recomputed in kpp_calc,
1791      in contradiction with new key itdkey.
1792      New key ikppkey created, and tamc.h headers updated.
1793    
1794    checkpoint50
1795    - 2nd step of merge with ecco-branch:
1796      merge changes in ecco-branch back into main trunk
1797    - bug fix in find_alpha
1798    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1799    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1800    - merged some sliced AD support routines
1801    
1802    checkpoint49
1803    merged from ecco-branch:
1804    o exf:
1805      - Enable initialisation of forcing fields to constant
1806        (runtime) values.
1807      - in exf_getffields.F
1808        Reduce i-/j-loop to interior domain, discarding overlaps.
1809        That also fixes wrong TAF-key computations for key_1, key_2
1810        with bulf formulae.
1811      - exf_init.F modify #ifdef for exf_init_evap
1812      - exf_getffieldrec.F, ctrl_getrec.F
1813        The following INT-usages are not safe:
1814          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1815          fldcount = int(fldsecs/fldperiod) + 1
1816        and were modified.
1817    o autodiff: checkpoint_lev...
1818      - updated storing for bulk formulae (some arrays were missing)
1819      - added state for seaice package
1820      - synchronized with main branch
1821    o DIVA:
1822      Modif.s in
1823      - the_main_loop.F
1824      - the_model_main.F
1825      and added cost_final_restore.F cost_final_store.F
1826      o With these changes, it is possible to fully separate
1827        the first forward run to compute the cost function (mdthe_main_loop)
1828        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1829        into separate model executions.
1830        This enables better tuning of DIVA to given queue sizes.
1831      o Loss of cost function value in consecutive DIVA runs is
1832        fixed by storing to 'costfinal' file.
1833      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1834        beginning/end of adjoint integration is accounted for.
1835      The current changes apply to TAF-1.4.26.
1836      TAF has one remaining bug, requiring one manual change
1837      (see MITgcm manual).
1838    o cal: synchronized between MAIN and ecco-branch
1839    
1840    checkpoint48i_post
1841    o Changes to restore differentiability of code w.r.t. previous tag
1842      (mostly adding new routines to make list and replacing
1843      pressure by totPhiHyd).
1844    o Updated and merged grdchk package
1845      - has both ADM and TLM checks
1846      - works for single- and multi-proc.
1847      - output cleaned
1848      - worked successfully for parallel DIVA
1849    o genmake:
1850      - Adding -platform=SP4
1851      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1852    o Modif. for DIVA:
1853      ctrl_unpack should not be called in intermediate DIVA interval.
1854      (similar thing would apply for active files such as
1855      tbar, sbar, psbar, which should not be reinitialised;
1856      only relevant for ecco-branch)
1857    
1858    checkpoint48h_post
1859    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1860    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1861    o Added SEAICE_initialHEFF to pkg/seaice
1862    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1863    
1864    checkpoint48g_post
1865    --- EOS:
1866    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1867      store total Potential in totPhyHyd for diagnostics & EOS.
1868    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1869    --- Pressure/geopotential gradient:
1870    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1871    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1872      ( changes results of global_ocean_pressure )
1873    o NLFS + z-coord.: add eta*Rho' contribution.
1874    o accurate phiHyd when using interface-W at the middle between 2 centers
1875     ( changes results of ideal_2D_oce )
1876    o includes r* 2nd term in potential gradient.
1877    
1878    checkpoint48f_post
1879    Merging from release1_p12:
1880    o Modifications for using pkg/exf with pkg/seaice
1881      - improved description of the various forcing configurations
1882      - added basic radiation bulk formulae to pkg/exf
1883      - units/sign fix for evap computation in exf_getffields.F
1884      - updated verification/global_with_exf/results/output.txt
1885    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1886      (SBO) core products, including oceanic mass, center-of-mass,
1887      angular, and bottom pressure (see pkg/sbo/README.sbo).
1888    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1889      to avoid negative values in shallow regions.
1890      - updated verification/natl_box/results/output.txt
1891      - updated verification/lab_sea/results/output.txt
1892    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1893    o Added useSingleCpuIO option (see PARAMS.h).
1894    o Updated useSingleCpuIO option in mdsio_writefield.F to
1895      work with multi-field files, e.g., for single-file pickup.
1896    o pkg/seaice:
1897      - bug fix in growth.F: QNET for no shortwave case
1898      - added HeffFile for specifying initial sea-ice thickness
1899      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1900    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1901      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1902    o pkg/seaice:
1903      - adjoint-friendly modifications
1904      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1905    
1906    checkpoint48e_post
1907    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1908    o dynamics: change definition of computational domain & adapt mom_fluxform
1909      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1910    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1911        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1912        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1913        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1914        inverted_barometer solid-body.cs-32x32x1
1915      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1916    
1917    checkpoint48d_post
1918    o in preparation for r*:
1919     a) use pre-computed gradient of hydrostatic potential:
1920        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1921     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1922        => affects results of glob_oce_pressure (different truncation error)  
1923      update output.txt of ideal_2D_oce & global_ocean_pressure
1924    
1925    checkpoint48d_pre
1926    o in preparation for r*:
1927      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1928      pass the 2 comp. of the grad. as arguments to momentum S/R.
1929      but for the moment, only used if it does not change the results.
1930    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1931    
1932    checkpoint48c_post
1933    Modifications in treatment of initial flux forcing controls
1934    to avoid extra storing of flux fields.
1935    
1936    checkpoint48c_pre
1937    o Added tidal_basin_2d experiment (currently 1D!)
1938    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1939    
1940    checkpoint48b_post
1941    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1942     (modification to pressure gradient not yet implemented)
1943    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1944      (for U & V) that are used for vertical advection of momentum.
1945    
1946    checkpoint48a_post
1947    o In preparation for r*, use temp. array to compute vertical transport
1948       in flux-form momentum pkg. => change results of few test-exp.
1949      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1950                        lab_sea, natl_box & plume_on_slope
1951    
1952    checkpoint48
1953    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1954    
1955    checkpoint47j_post
1956    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1957    o moved adexch from forward_step to addummy_in_stepping
1958    o added exch in ctrl_map_...
1959    o aveFreq.=0. at end of cost_final to avoid overwrite in
1960      reverse checkpointing loop
1961    o Yet more changes in gmredi:
1962      * adgmredi_calc_tensor
1963        avoiding all recomputation of gmredi_slope_limit
1964      * adgmredi_x/y/rtransport
1965        added flag for excessive storing to avoid recomp. of
1966        u/v/rtans, dTdx/y/z
1967        -> this is not really necessary and very memory-consuming
1968      * adgmredi_slope_psi:
1969        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1970      * gmredi_slope_limit
1971        re-activated full calculation of taperfct for case 'ac02'
1972    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1973    
1974    checkpoint47i_post
1975    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1976    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1977      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1978    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1979    o gmredi: fix few bugs.
1980    
1981    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1982    This will be a good checkpoint to plug into the ecco-branch.
1983    o few modif.'s to get latest version adjointed
1984      (mainly kick out code in ini_linear_phisurf)
1985    o modif's to run adjoint with exactConserv
1986    o case GM_BOLUS_ADVEC should be cleaned
1987      S/R gmredi_slope_psi should be cleaned
1988    o verification/carbon now has exactConserv=.TRUE.
1989    
1990    checkpoint47g_post
1991    o time-average AIM output: becomes independent from statvars time-average
1992      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1993    o After TAF bug fix:
1994      Tested adjoint of gmredi package.
1995      Tests were done with checkpoint47 rather than with latest
1996      checkpoint47f_post since the latter is broken for the adjoint
1997      verification/carbon/ contains both ADM and TLM gradient checks.
1998    Here they are, before they get changed/lost/stolen.
1999    Mostly modif.'s to fix numerical sensitivities.
2000    Gradient checks OK for
2001    - GM_taper_scheme:
2002      * clipping
2003      * ac02
2004      * linear
2005      * glw91
2006      * dm95
2007      * ldd97
2008    - GMREDI_OPTIONS:
2009      * GM_VISBECK_VARIABLE_K
2010      * GM_NON_UNITY_DIAGONAL
2011      * GM_EXTRA_DIAGONAL
2012      * GM_BOLUS_ADVEC
2013    in conjunction with data.gmredi parameters to be checked in
2014    in a few minutes under verification/carbon/code/
2015    
2016    checkpoint47f_post
2017    Merging from release1_p10:
2018    o modifications for using pkg/exf with pkg/seaice
2019      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2020        and SEAICE_EXTERNAL_FLUXES
2021      - pkg/exf CPP options EXF_READ_EVAP and
2022        EXF_NO_BULK_COMPUTATIONS
2023      - usage examples are Experiments 8 and 9 in
2024        verification/lab_sea/README
2025      - verification/lab_sea default experiment now uses
2026        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2027    
2028    checkpoint47e_post
2029    o created a tag prior to creating a branch
2030    
2031    checkpoint47d_post
2032    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2033      at the bottom boundary had an erroneous half slip boundary condition
2034    o added bottom drag and no slip boundary condition capabilities to
2035      oceanic pressure coordinates code
2036    o added new verification experiment global_ocean_pressure, this experiment is
2037      also described in the tutorial section of the manual
2038    checkpoint47d_pre
2039    
2040    checkpoint47c_post
2041    o Added a verification experiment for a global cubed-sphere ocean run
2042      -  verification/global_ocean.cubed32x32x30
2043      -  uses pkg/therm_seaice and pkg/bulk_forcing
2044    
2045    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2046    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2047      when using P-coordinate; only implemented for atmospheric config.
2048    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2049      NOTES: requires option NONLIN_FRSURF to be "#define".
2050    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2051    
2052    checkpoint47b_post
2053    Merging from release1_p9:
2054    o pkg/seaice
2055      - removed GOTO's and added taf directives
2056      - double precision constants to reduce the g77 (Linux)
2057        to F77 (SGI) differences reported in release1_p8
2058    o tools/genmake
2059      - added SGI options
2060    o verification/testscript
2061      - updated to that of checkpoint47a_post
2062    o verification/global_ocean.90x40x15/input/eedata
2063      - modified for SGI f77 compatibility
2064    o verification/lab_sea
2065      - added description of sea-ice model
2066      - added missing matlab routines
2067      - added test of thermodynamics parallelization
2068    
2069    checkpoint47a_post
2070    o new pkg: aim_v23
2071     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2072       for now, keep the same surface forcing as before.
2073     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2074     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2075     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2076    o add diagnostic of surface correction term in monitor output
2077    
2078    o bulk_force and therm_seaice
2079    - Two packages:  bulk_force (Bulk forcing)
2080      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2081    - Earlier integration from Stephaine Dutkiewicz
2082      and Patrick Heimbach.
2083    - Two ifdef statements for compile time,
2084       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2085    
2086    checkpoint47
2087    differentiable version of checkpoint46n_post
2088    o bug fix in quasihydrostaticterms
2089    o * "clean" adjoint code (in terms of extensive recomputations)
2090        can now be obtained for all GMREDI options (i.e. for
2091        - GM_VISBECK_VARIABLE_K
2092        - GM_NON_UNITY_DIAGONAL
2093        - GM_EXTRA_DIAGONAL
2094        - GM_BOLUS_ADVEC )
2095      * However, wrong gradient check problem remains unsolved.
2096      * New CPP options have been introduced for different
2097        tapering schemes
2098    o external_fields_load now part of differentiation list
2099    o pressure needs multiple storing;
2100      would be nice to have store_pressure at beginning or
2101      end of forward_step, e.g. by having phiHyd global (5-dim.)
2102      (NB: pressure is needed for certain cases in find_rho,
2103      which is also invoked through convective_adjustment).
2104    o recomputations in find_rho for cases
2105     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2106    o #define ATMOSPHERIC_LOADING should be differentiable
2107    o ini_forcing shifted to begining of initialise_varia
2108    o Incorporating QNVS line search routines into MITgcm
2109      (this is separate code, and therefore not under pkg)
2110      lsopt/, optim/
2111    o Updated verification/carbon/
2112      - #define GM_VISBECK_VARIABLE_K
2113      - GM_taper_scheme    = 'ldd97'    
2114    
2115    checkpoint46n_post
2116    Merging from release1_p8:
2117    o verification/natl_box:
2118      updating new external_fields_load routine
2119    o New package: pkg/seaice
2120      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2121      The sea-ice code is based on Hibler (1979-1980).
2122      Two sea-ice dynamic solvers, ADI and LSR, are included.
2123      In addition to computing prognostic sea-ice variables and diagnosing
2124      the forcing/external data fields that drive the ocean model,
2125      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2126      The implied surface heat flux is then stored in variable
2127      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2128      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2129      non-local transport term.  Because this call precedes model
2130      thermodynamics, temperature under sea-ice may not be "exactly" at
2131      the freezing point by the time theta is dumped or time-averaged.
2132      N.B.: fairly large differences in accuracy occur across
2133            different platforms/compilers; comparison between
2134            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2135            generated output gives:
2136       T           S           U           V
2137      C D M    c        m  s        m  s        m  s        m  s
2138      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2139      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2140      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2141    
2142      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2143    o GAD:
2144      - generated new common blocks to account for call of
2145        same gad routines with differing traceridentities
2146        (needed to modify tracerIdentity indices in GAD.h)
2147      - generated separate common blocks for case useCubedSphereExchange
2148        (Department of Futurology)
2149      - parameter lists to gmredi_?transport: added tracerIdentity
2150      - added new key indices to tamc.h
2151    o external_fields_load:
2152      - added this routine to TAF list
2153      - needed to make some common blocks global and additional storing
2154        along the same lines as exf package (checkpoint_lev?_directives.h)
2155    o exf:
2156      updated external forcing package
2157      - bug fixes carried over from ecco-branch
2158        (missing OBCS_OPTIONS.h in two routines)
2159      - enable easy to use "no forcing".
2160      - added exf I/O for atmospheric loading
2161      - added exf I/O for runoff data
2162      - transfered scaling between exf <-> MITgcm to exf namelist
2163    o Adding new verification experiment global_with_exf.
2164      This verification experiment is almost identical to the
2165      global_ocean.90x40x15 experiment, except that it uses
2166      the exf (and cal) package instead of the
2167      external_fields_load routine (cf README file).
2168    
2169    checkpoint46m_post
2170    o modified testscript to return -- when there are no lines of "%MON" output
2171    o added new flag "quasiHydrostatic" for QH mode
2172      and new routine quasihydrostaticterms()
2173    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2174      New routine: mom_u_coriolis_nh()
2175    o fixed sign of non-hydrostatic metric terms in u and v equations.
2176      Depend on correct sign of gravitySign.
2177    o added work.pc* to .cvsignore in aim directories using ifc
2178    o introduced flag for controllin non-hydrostatic metric terms
2179    o removed gravitySign from PARM04
2180    o switched to g77/ifc from pgf77 in aim experiments
2181    
2182    checkpoint46l_post
2183    o made convective adjustment work with pressure coordinates:
2184     - changed the direction of k-loop in convective_adjustment.F for the
2185       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2186     - adjusted the reference pressure k-index in convective_adjustment.F
2187     - adjusted the convection condition in convect.F (in analogy to
2188       calc_ivdc.F)
2189     - convective_adjustment no longer computes anything on the halos
2190     - removed the warnings about negative salinity from find_rho.F and
2191       find_alpha.F; instead the new routine look_for_neg_salinity, called
2192       at the beginning of find_rho, find_alpha, and find_beta, does a
2193       check of the entire slice, if CPP-option
2194       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2195    checkpoint46l_pre
2196    
2197    checkpoint46k_post
2198    o fixed the verification/global_ocean.90x40x15 experiment:
2199     - new bathymetry (the world according to A., JMC, and M.)
2200     - new initial fields and forcing fields (*.bin files)
2201     - new POLY3.COEFFS (for the next release one should switch to a full
2202       equation of state: JMD95P or MDJWF)
2203     - fixed several errors and redundancies in the data file
2204     - experiment uses looped cells
2205     - added matlab directory with diagnostic scripts for plotting of output
2206    
2207    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2208     - read AIM physics parameters from a file (data.aimphys)
2209     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2210    
2211    checkpoint46j_post
2212    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2213    o move wVel computation at the end of the time step, in S/R integr_continuity
2214    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2215    o update timeave pkg for wVel diagnostic.
2216    checkpoint46j_pre
2217    
2218    checkpoint46i_post
2219    o Clean up AIM package (and keep the results unchanged):
2220      include CPP_OPTION and use IMPLICT NONE in all routines ;
2221      declare all the variables _RL ; use _d 0 for all numerical constants.
2222      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2223    
2224    checkpoint46h_post
2225    o cleaned up the use of rhoNil and rhoConst.
2226      - rhoNil should only appear in the LINEAR equation of state, everywhere
2227        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2228        and the dynamical equations are all divided by rhoConst
2229    o introduced new parameter rhoConstFresh, a reference density of fresh
2230      water, to remove the fresh water flux's dependence on rhoNil. The default
2231      value is 999.8 kg/m^3
2232    o cleanup up external_forcing.F and external_forcing_surf.F
2233      - can now be used by both OCEANIC and OCEANICP
2234    checkpoint46h_pre
2235    
2236     Added code to convert surface volume flux (fresh water) into
2237     a mass flux when using P coordinates in the ocean (OCEANICP).
2238     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2239    
2240    checkpoint46g_post
2241    o Include a new diagnostic variable phiHydLow for the ocean model
2242      - in z-coordinates, it is the bottom pressure anomaly
2243      - in p-coordinates, it is the sea surface elevation
2244      - in both cases, these variable have global drift, reflecting the mass
2245        drift in z-coordinates and the volume drift in p-coordinates
2246      - included time averaging for phiHydLow, be aware of the drift!
2247    o depth-dependent computation of Bo_surf for pressure coordinates
2248      in the ocean (buoyancyRelation='OCEANICP')
2249      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2250        Theta, Salinity, and Pressure in the parameter list. This routine is
2251        presently contained in find_rho.F. This routine does not give the
2252        correct density for 'POLY3', which would be a z-dependent reference
2253        density.
2254    o cleaned up find_rho
2255      - removed obsolete 'eqn' from the parameter list.
2256    o added two new verification experiments: gop and goz
2257      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2258    checkpoint46g_pre
2259    
2260    checkpoint46f_post
2261    o Enable tangent linear (forward mode) gradient checks:
2262      - extended active file handling to g_... files
2263      - added TANGENT_SIMULATION to theSimulationMode
2264      - extended grdchk package accordingly
2265    o added tangent linear setup in verification/carbon/code_ftl
2266    o added adjoint setup in verification/front_relax/code_ad
2267    
2268    checkpoint46e_post
2269    o Added new equation of state -> MDJWF
2270      - EOS of McDougall et al., 2002, JAOT, submitted
2271      - caveat: the equation of state is only valid for a smaller (more
2272        realistic?) range of values than JMD95P/Z and UNESCO
2273      - added masks to the calculation of pressure in store_pressure
2274      - added more check values for density in check_eos (ini_eos.F), some of
2275        the old check values are out of the range of the MDJWF-eos, so don't
2276        expect perfect matches for those
2277    checkpoint46e_pre
2278    
2279    checkpoint46d_post
2280    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2281      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2282      case of pressure coordinates. eosType='JMD95Z' in
2283      combination with buoyancyRelation='OCEANICP' now causes an error.
2284    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2285      in find_alpha/beta.
2286    checkpoint46d_pre
2287    
2288    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2289      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2290    
2291    checkpoint46c_post
2292    o Changes necessary for ocean in p-coordinates
2293     -  Added new buoyancy relation = 'OCEANICP'
2294     -  Added new parameters = gravitySign (this used to be contained inside
2295        the factor dRdZ which I added when we first switched to R coordinates).
2296     X GM/Redi is not compatible (yet)
2297     X bottom drag and no-slip need to be debugged.
2298    checkpoint46c_pre
2299    
2300    checkpoint46b_post
2301    o Added new equation of state -> JMD95Z and JMD95P
2302      - EOS of Jackett and McDougall, 1995, JAOT
2303      - moved all EOS parameters into EOS.h
2304      - new routines ini_eos.F, store_pressure.F
2305    o Added UNESCO EOS, but not recommended because it requires
2306      in-situ temperature (see JMD95)
2307    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2308      unesco.f to be used with POLY3
2309    checkpoint46b_pre
2310    
2311    checkpoint46a_post
2312    o Added (atmospheric) pressure loading
2313      - new field in FFIELDS.h, etc...
2314      - new cpp flag ATMOSPHERIC_LOADING
2315    o Changed hFacC to _hFacC in calc_phi_hyd.F
2316    o Added SHORTWAVE_HEATING to some files for consistency
2317    checkpoint46a_pre
2318    
2319    checkpoint46
2320    further merges from release1_p5
2321    o new ctrl package
2322      - adopted from ECCO environment to enable optimization
2323      - added Eliassen Palm fluxes to controls
2324    o added Eliassen Palm flux controls to gradient check package
2325    o cost package
2326      - Compatible with new ctrl package
2327      - added Eliassen Palm cost hooks
2328      - modif's of existing cost functions
2329    o Adjoint-related bug fixes in kpp:
2330      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2331      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2332    o autodiff package
2333      - flow directives:
2334        + new for S/R do_the_model_io
2335        + enhanced for S/R checkpoint
2336        + new gmredi.flow
2337      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2338        disable adcommon.h/g_common.h by default.
2339      - fixed problem for adjoint of global_max
2340    o modified verification/carbon/
2341    o New setup for adjoint of global_ocean
2342    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2343    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2344    o incorporated hooks for sponge layer code (external_forcing.F)
2345    
2346    checkpoint45d_post
2347    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2348    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2349      (affects plume_on_slope "cg2d" output)
2350    o add new parameter deltaTfreesurf for free-surface time stepping
2351    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2352    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2353    o change phiMin in exp1 (to agree with documentation)
2354    o add new flags:
2355     - T,S forcing inside/outside Adams-Bashforth
2356     - turn off temp,salt advection and/or forcing
2357     - for each tracer, define internal flag for multiDimAdvection & A-B
2358    o monitor: change definition of KE to check conservation of Energy
2359    
2360    checkpoint45c_post
2361    o Removed f90 comments ("!")
2362    o Modified initialisations to enable exf package for MITgcm
2363      (without invoking ECCO_PACKAGE).
2364    o modifications to gradient check package (Martin Losch)
2365      - enable centered differences
2366      - modified format of standard output
2367    
2368    checkpoint45b_post
2369    o cleaned exchange calls in cg2d
2370    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2371    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2372      to configure barotropic setup (Martin Losch)
2373    o moved some initialisations within bi,bj loop in dynamics
2374      (TAF flow dependency)
2375    o in initialise_varia, moved call packages_init_variables
2376      before convective_adjustment_init
2377      (corresponding adjustment of TAF tape initialisation).
2378    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2379    
2380    checkpoint45a_post
2381    o compute Rho over the whole domain (extend iMin,jMin indices)
2382    o specific exchange for X-slice domain (case Ny=1)
2383    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2384    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2385    
2386    checkpoint44h_post = checkpoint45
2387    o Fix to restore differentiability:
2388      place at which packages_init_variables is called in
2389      initialise_varia is crucial for reverse control flow.
2390    o modifications in GMRedi to enable stable adjoint
2391      (corresponding modif's in thermodynamics, dynamics)
2392    o added missing hook for sponge layer code in external_forcing
2393    o modified test cost functions
2394    o storing in gad_advection (plus removal of write(0,*)!
2395    o missing headers TR1.h added in convective_adjustment routines
2396    o errorMessageUnit set non-equal zero in eeboot
2397      (conflict on some platforms, e.g. IBM SP3)
2398    o modified carbon verif.
2399    
2400    checkpoint44h_pre
2401    o vertical grid option: allow to put the Interface at the middle between
2402      2 cell-centers ; replace delZ in pkg/kpp by drF.
2403    o GM Advective form: Tracers are advected using the residual transport (=
2404      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2405    
2406    checkpoint44g_post
2407    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2408      results) ; ifdef missing in thermodynamics.F
2409    
2410    checkpoint44f_pre,checkpoint44f_post
2411    o added PTRACERS package
2412      This allows an arbitrary number of passive tracers to be integrated
2413      forward simultaneously with the dynamicaly model.
2414      + Implemented so far:
2415        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2416        - I/O and checkpointing
2417        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2418      + Not implemented so far:
2419        - KPP
2420        - OBCS
2421      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2422        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2423        line in data.pkg.
2424      + This package is disabled by default since it increases storage.
2425    
2426    
2427    o testscript: added -cleanup option
2428    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2429                 b) enable to filter 2D fields.
2430    
2431    checkpoint44e_pre,post
2432    o re-wrote convective adjustment to use pre-calculated weights
2433      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2434      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2435      Original calls to convect() still in place.
2436    
2437    chkpt44d_pre,post
2438    o added missing EXCLUDE_MONITOR flags
2439    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2440      (incompatible typ in MIN/MAX expressions caused problems
2441      on IBM SP3)
2442    o in genmake added variable MAKEDEPEND
2443      plus resetting for case SunOS
2444    o added timer_stats.c routine for IBM SP3
2445    o removed variables in dynamics
2446    !!! I forgot to create tag chkpt44d_pre !!!
2447    !!! But chkpt44d_pre = chkpt44c_post    !!!
2448    
2449    o real fresh water flux implemented with non-linear free-surface.
2450    
2451    chkpt44c_pre,post
2452    o few fix (mask in shap_s2, EmPmR in external_field_load,
2453      USE_NATURAL_BCS in solve_for_P);
2454    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2455    
2456    checkpoint44b_pre/_post
2457    o merge of relevant stuff from the ecco-branch:
2458      - genmake: removed $S64 overwrite for case SunOS
2459      - pkg/exf: update and corrections for field swapping and obcs
2460      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2461                  harmonized between ECCO and MITgcm
2462      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2463                      updated checkpointing_lev... lists for obcs
2464      - model/src: minor changes in forward_step, plot_field
2465                   added directive for divided adjoint in the_main_loop
2466      - pkg/mdsio: added mdsio_gl_slice
2467    
2468    o check parameters & config (chkpt44a_pre,post)
2469    o OBC and NonLin_FrSurf.
2470    
2471    checkpoint44
2472    o fix bug in mom_vi_del2uv
2473    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2474    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2475    o update AIM experiments (NCEP input files)
2476    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2477    o added some stuff for AD
2478    
2479    checkpoint43
2480    o added two new advection tests
2481    o added global 4x4 degree ocean test
2482    o added test of H&S94 with free surface on cube
2483    o some final mods for gradient check, adjoint,...
2484    
2485    checkpoint42
2486      Fixed AD-related problems:
2487    o Store directives up-to-date with re-arranged Adams-Bashforth
2488      (mainly thermodynamics.F)
2489    o New store directives for multi-dim. advection schemes
2490      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2491      * new common block and key passkey
2492      (mainly gad_advection.F)
2493    o Modified store directives for split of dynamics/thermodynamics
2494      for the case ALLOW_KPP
2495    o Cleaned argument list for timestep_tracer.F
2496    
2497    checkpoint41
2498    o re-formatted/added comments in prologues of key subroutines
2499      to work with protex
2500    
2501    checkpoint40
2502    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2503    o added FLT (floats) package from Arne along with demo. experiment
2504    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2505      implementation of forward-in-time forcing terms
2506    o more mods for non-linear free-surface including new variable
2507    o modified multi-dim method to work on cube
2508    o bug fix in KPP (from DM)
2509    
2510    checkpoint40pre9
2511    o added DST advection schemes
2512    o fix MPI bug on SGI's
2513    o modifications for non-linear free-surface
2514    o fixed conditionals for fixed flow/passive tracer only mode
2515    o added tension/strain form of stress tensor
2516    o changes to commenting of arguments for TAF/TAMC
2517    o added/updated many matlab scripts
2518    o added multi-dimensional advection method for tracers
2519      
2520    checkpoint40pre8
2521    o new package rw/
2522      Added method for dumping intermediate local arrays:
2523      mdsio_writetile - same as mdsio_writefield except works from inside
2524                        bi,bj loop
2525      mdsio_writelocal - same as mdsio_writetile except works for local
2526                         arrays
2527      write_local_r? - higher-level wrapper for mdsio_writelocal
2528      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2529      Example given at end of mom_vecinv.F that dumps some local arrays.
2530    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2531      control flux-form versus vector invariant code.
2532      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2533      or genmake -DISABLE ...
2534    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2535      (additional storing is now needed for case vecinv;
2536      currently nothing implemented to switch this storing off
2537      in case fluxform is used since no CPP flag available).
2538    
2539    checkpoint40pre7
2540    o bug fix in dynamics.F
2541      calc_viscosity called before k=1,Nr loop.
2542    o added some #ifdef's ALLOW_PASSIVE_TRACER
2543    o cleaned initialisations in ctrl_map_ini
2544      related to TAF
2545    
2546    checkpoint40pre6
2547    o split dynamics into thermodynamics & dynamics
2548    o corresponding split of calc_diffusivity into
2549      calc_diffusivity, calc_viscosity
2550      (kpp_calc_diff, kpp_calc_visc).
2551    o Added diffkr, kapgm to control variables
2552    o bug fix in gmredi_slope_limit for ldd97
2553    
2554    checkpoint40pre5
2555    o proper initialization of Adams-Bashforth time stepping
2556      + uses forward step for very first step of model (iter=0)
2557    o re-generated *all* output since almost all output is modified by this
2558      change (sorry but we've been putting this one off for about 2 years)
2559      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2560        *not* regenerated since they are already out of date and I don't
2561        want to create the impression that they are suddenly working.
2562    o removed KAP stuff for DEC's
2563    o modified/added many .cvsignore files in */code and */input
2564    o added new expt "solid-body.cs-32x32x1"
2565      + this uses an alternative form of ini_curvilinear_grid.F which
2566        is not necessarily any better than the current one...
2567    
2568    checkpoint40pre4
2569    o added re-initialisations of utrans,vtrans,rtrans in
2570      calc_common_factors which are crucial for TAF.
2571    o extended iMin,jMin range for calc_common_factors,
2572      calc_diffusivity
2573    o added option ALLOW_PASSIVE_TRACER
2574    o a few minor updates and fixes
2575    
2576    checkpoint40pre3
2577    o created calc_gtr1.F for gad package
2578    o split the_main_loop and re-introduced forward_step
2579    o some recomputations of nIter0 for TAMC
2580    
2581    checkpoint40pre2
2582    o Updated to latest branch of AJA, JMC
2583    o Added gradient check package
2584    o Added routines for passive tracer handling
2585    o Added carbon sequestration sensitivity experiment
2586    
2587    checkpoint39
2588     o Modifications and fixes to support TAMC
2589       (mainly missing or wrong directives)
2590     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2591       in addummy_in_stepping
2592     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2593     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2594     o Included following packages:
2595       cal: calendar
2596       exf: external forcing
2597       ecco: essential routines to control use of cal, exf
2598             (NB: this is not the full ECCO environment)
2599     o disabled some packages by default in genmake
2600    
2601    checkpoint38
2602     o see notes_c37_adj.txt
2603     o corrected wrong layer index in external_forcing_t
2604     o replaced the_main_loop/forward_step by the_main_loop
2605     o removed forceoutput from write_state
2606       (replaced criteria for initial/final state)
2607     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2608    
2609    checkpoint37
2610     o mdsio.F routine split and packaged in pkg/mdsio
2611       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2612        used unless genmake -disable=mdsio)
2613     o allow a more precise surface-geopotential gradient for the atmosphere
2614       taking into account the change in space of Alpha (=1/rho) at the surface.
2615     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2616       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2617     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2618       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2619       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2620     o Time-Average diagnostics defined as a pseudo package "timeave".
2621     o pickup files : old pickup (before c35) did not work with new code (c35
2622       and after) unless activating 2 commented lines in initialise-varia.
2623     o Non-Hydrostatic pickup file Pb fixed.
2624     o bug with Rigid-lid version (since c35) fixed.  
2625    
2626    checkpoint36
2627     o implement Crank-Nickelson barotropic time-stepping
2628     o recover Time-Average diagnostics
2629     o fix Pb in checkpoint (PR#19)
2630     o AIM become a standard package ; clean unused CPP_kees
2631    
2632    checkpoint35
2633     o subtantial rewrite of dynamics.f
2634     o allows staggered time-stepping
2635     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2636     o added bottom drag (linear + quadratic)
2637    
2638    checkpoint34
2639     o Modified exchange routines for correct reverse simulation.
2640     o Added verification output to comply with bug fix in impldiff.F
2641       as of c33 (exp2, natl_box).
2642     o Corrected store directives in dynamics.F
2643     o Corrected array boundaries in impldiff.F
2644     o Corrected array dimensions in gmredi.
2645       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2646     o Added routine GLOBAL_SUM_INT to global_sum.F
2647     o Added mdsio_gl.F for ECCO purposes.
2648    
2649  checkpoint33  checkpoint33
2650   o Fixed bug in lower BC in impldiff.F   o Fixed bug in lower BC in impldiff.F
2651   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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