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revision 1.75 by jmc, Thu Jun 20 23:52:03 2002 UTC revision 1.637 by mlosch, Tue Mar 21 13:00:33 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
8      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
9      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
10      with SEAICE_CGRID defined.
11    o move calendarDumps from "data" to "data.cal" and clean-up the code
12      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
13    o add useEXF & useCAL flags (for now, set in hard-coded way)
14    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
15      (were missing in NH mode, and wrong in quasihydrostatic mode).
16      waiting for Chris updated version of calc_gw to add those CALLs.
17    o fix bug in quasihydrostatic S/R ;
18      add a test for this option: global_ocean.90x40x15.qshyd
19    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
20      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
21    o add on/off flag useOffLine for package OFFLINE
22    o seaice:
23      - modify advection so that it works also on the C-grid
24      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
25        problem in multi-tile runs with C-grid
26      - add flags for clipping ice velocities and/or masking solver forcing
27      - fix drag (ocean on ice) formulation and a bug that caused noise in the
28        C-grid solver
29      - added a few comments to seaice_diffusion.F
30      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
31        are now exclusive)
32      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
33        required re-ordering the code a little:
34       + make DAIRN global variable (defined in SEAICE)
35       + move computation of the viscosities eta and zeta into a new separate
36         routine (because I need to recompute them in seaice_ocean_stress.F)
37    
38    checkpoint58b_post
39    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
40      update output.txt of exp. aim.5l_cs.thSI
41    o various mnc cleanups and improvements:
42      + shrink lookup tables by factor of ~4
43      + better error reporting when running out of lookup space
44      + able to handle longer path/file names (up to 500 chars)
45    o adjoint:
46      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
47      - TBD: "hidden" mom_vecinv recomp. in dynamics
48    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
49     (allow to differentiate between forcing components using new integer flags:
50      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
51     and add new flag to put Dissipation tendency out of Adams-Bashforth.
52    o ecco
53      - enable trend removal from SSH anomaly obs.
54    o adjoint
55      - a fix for PmEpR when #undef EXACT_CONSERV
56      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
57      - try to fix "hidden" recomp. in forward_step for NLFS
58        (NLFS seems broken sometimes after I checked it in)
59    o seaice:
60     - add c-grid version of the dynamic solver:
61       + three new routines that are the c-grid substitute lsr, dynsolver
62         and ostres
63       + put a few fields that were local to dynsolver into global common
64         blocks, so that I can move the computation of stresses etc into
65         seaice_lsr (saves coding but may break the adjoint).
66     - replace more hardwired parameters by runtime parameters
67     - add ice masks that mask the rhs of the implicit solvers where there
68       is no ice (commented out in seaice_dynsolver, because i am not sure
69       if this works properly), eventually this should replace the clipping
70       of ice velocities in seaice_dynsolver to +/-40cm/s.
71    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
72      include it only where its needed
73    o move balancing of fluxes before the call of external_forcing_surf
74    o seaice:
75      - correct units of turning angles (now they are really in degrees)
76      - move computation of GWATX/Y out of main routine into dynsolver
77      - initialize GWATX/Y in seaice_init
78    o Apply mask on Fresh-Water flux (needed for SSH forcing).
79      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
80    o seaice: add runtime flags for turning angles (default to zero)
81    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
82      and trend from exf forcing and ctrl control adjustments
83    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
84      (since checkpoint57x_post)
85    o change the default rotation period to 86164.s = the Earth rotation
86    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
87      and based on a reference stratification. Tested within hs94.cs-32x32x5.
88    o seaice advection: add code for choosing between the default (2nd order
89      central differences) and multiDim advection schemes provided by
90      pkg/generic_advdiff
91    o seaice:
92      - removed all references to SEAICE_GRID.h fields from
93        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
94        (cubed-sphere configuration will change a little)
95      - grid computations in seaice_init are obsolete now.
96      - cleaned up code a little so that is easier to read (hopefully).
97      - added new (better?) discretizations of default advection and diffusion
98        (turn on with SEAICEuseFluxForm)
99      - replace 1 in 3d global fields by kSurface in growth.F
100      
101    checkpoint58a_post
102    o seaice:
103      - bug fix in advect.F
104    o shelfice:
105      - separate shelfice load anomaly from pload (breaks with time
106        dependent forcing), => introduce constant field shelficeLoadAnomaly.
107        Its default is 0., but it may be computed more cleverly from (unknown)
108        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
109        done offline. A good approximation of the pressure load anomaly is
110        necessary to avoid large initial adjustment processes underneath
111        deep-reaching shelfice.
112      - small fix in ISOMIP shelfice_thermodynamics
113      - add more sophisticated thermodynamics of Hellmer (1989), this is
114        now the default
115      - give a few constants more intuitive names
116    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
117      if bulk formulae are used in long integration (especially EmPmR). Turn
118      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
119      if balancePrintMean, the imbalance that is substracted is printed to
120      STDOUT.
121    o fix bug (typo) in obcs_apply_eta.F
122    o add a new package shelfice which enables us to model the circulation
123      underneath shelf-ice with draughts of hundreds of meters.
124     - works
125     - to do: + include improved thermodynamics
126              + check whether kSurfC (from model/inc/SURFACE.h) can be used
127                instead of new field kTopC
128              + can we use topoFile, Ro_surf and existing code in ini_depth.F
129                instead of new field R_shelfIce and new code in ini_depth.F
130                and ini_mask_etc.F?
131              + adjust vertical mixing schemes?
132    o seaice pkg:
133     - add a cpp-flag to include a simple formula for a salinity dependent
134       freezing point of sea water at the surface
135     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
136       meridional stresses are now different (and hopefully correct)
137    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
138       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
139       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
140    o pkg/diagnostics: add options and parameters for regional-statistics
141       diagnostics ; define regions by reading a region-mask from a file
142       (might add other options later)
143    o pkg/bulk_force:
144     - add option and parameters to use AIM surface-flux formulae.
145     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
146       others forcing fields (defined in PARM05, parameter file "data") are loaded
147       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
148     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
149     - use the right EXCH call for uwind,vwind (to work on CS-grid).
150     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
151       and parameters (note: calcWindStress replaces .NOT.readwindstress).
152     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
153    
154    checkpoint58
155    o add "--embed-source" option to genmake2 which, when the supporting
156      tools can be compiled (as determined by genmake2) will turn on the
157      embed_files package which then embeds the entire MITgcm source code
158      (*.[fFhc] + Makefile) used for the build within the executable
159      - requested by CNH but off by default
160      - adds a paltry <9MB to the mitgcmuv executable in most cases
161      - only writes the output when useEMBEDSRC in eedata is true
162    o clean up 3-dim. relaxation codes:
163      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
164      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
165      * Thanks to Tom Haine for testing!
166    
167    checkpoint57z_post
168    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
169      affects output (@ truncation level) of exp. plume_on_slope ; updated.
170    o fix the pickup behavior for obcs in combination with ptracers
171    o fix a bug in ptracers_external_fields_load
172    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
173      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
174    o transfered surface NH pressure to eta field (if exactConserv).
175    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
176         and update lab_sea output.txt file.
177    o completing 3-dim. relaxation code: additional term
178         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
179      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
180      * At compile time, in "EXF_OPTIONS.h" set
181          #define  ALLOW_CLIMTEMP_RELAXATION
182          #define  ALLOW_CLIMSALT_RELAXATION
183      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
184          tauThetaClimRelax3Dim = 15552000.0,
185          tauSaltClimRelax3Dim  = 15552000.0,
186      * 3 cases:
187          1) Use a constant-in-time 3-dim. field
188          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
189          3) Real-time relax. to time-evolving prescribed field
190    o Adding Laplacian-type smoothness constraint on
191      initial and boundary (forcing) controls (ic, bc)
192      * enable at compile-time via
193        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
194      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
195      * Absolute scale somewhat unclear so far
196      * no area weighting was included since no other cost term does so far
197    
198    checkpoint57y_post
199    First step for a NLFS adjoint
200    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
201    o new init. routines for calc_r_star, calc_surf_dr
202    o still need to deal with ini_masks_etc
203    o testreport seemed happy
204    checkpoint57y_pre
205    
206    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
207    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
208    o add new offset feature to offline pkg (plus minor cleanup)
209    o cfc fixes for final year of integration
210    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
211      be in GCHEM_OPTIONS).
212    
213    checkpoint57x_post
214    o fix testreport Pb in multiple test experiment.
215    o cleanup our namelist syntax in verification:
216      - make it more F95 standards compliant (some work still needed)
217      - allows the vast majority of our tests to work with gfortran
218    o Non-Hydrostatic:
219     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
220     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
221    o Allow to apply AB on T,S rather than on AB(gT,gS):
222     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
223     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
224       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
225     - need a "clever" read_pickup to restart from the other AB formulation
226    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
227    o remove some unused variables (reduces number of compiler warnings)
228    o adjoint
229      * Disable useVariableViscosity for adjoint for time being
230        (there are a number of extensive recomputations)
231      * Initialize certain variables needed for adjoint
232    
233    checkpoint57w_post
234    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
235                 fix the singleCpuIO RS version of MDSWRITEFIELD
236       and add a WARNING if using globalFiles=T with multi-processors.
237    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
238      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
239    o tracer advection scheme:
240      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
241       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
242       was not very convenient).
243      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
244       (further tests needed for the implicit DST & Flux-Limiter schemes).
245    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
246      and sRef for convenience, handy, when you want to initialize
247      ptracers in a large domain with a constant non-zero value. Also,
248      untangle ptracers_init.F a little.
249    
250    checkpoint57v_post
251    o change dome exp. to use variable viscosity in side-drag terms.
252    o remove all the files from the cfc_offline test since they are now
253      incorporated into tutorial_cfc_offline which has been producing
254      identical results for a few days of testing
255    o add new parameter: sideDragFactor to enable half-slip-side BC
256      and change side-drag S/R to use viscosity from mom_calc_visc
257      (can switch back by setting sideDragFactor=0.); affects results at
258      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
259       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
260    o vorticity & strain are now computed without masking, to account for
261      no-slip-side BC in variable viscosity calculation ; mask is applied
262      anyway later on, before computing advection/coriolis terms.
263    o modify exp4 to test new obcs support for reading from external files
264      and for passive tracers
265    o fix behavior of ptracers_monitor when monitor output is written to a
266      netcdf-file; still not independent of monitor.F (writes in the same
267      file).
268    o change default value of tRef (put a uniform, meaningful value for ocean
269      & atmos) and initialize sRef (was missing, as Martin mentioned).
270    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
271      to be proportional to enstrophy dissipation length.  Thus,
272       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
273      This is now consistent with Smagorinsky and with the manual.
274    
275    checkpoint57u_post
276    o OBCS and PTRACERS: add open boundary support for passive tracers
277      - either use homogenous (pseudo) v.Neumann conditions or prescribe
278        OB-values from file; this is not different from the way theta and salinity
279        are treated
280      - however, Orlanski-radiation conditions are not supported, and the model
281        will stop if you use pTracers and Orlanski at the same time.
282      - beefed up the rountine obcs_external_fields_load: now only those open
283        boundary values are overwritten with values from files for which there
284        are really files, otherwise the OB-fields remain untouched. This makes
285        it possible to use different OBs at different ends of the domain (as
286        with EXF)
287    o reduce number of exch calls in shap_filt (s2).
288    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
289      truncation level) 4/5 MLAdjust test results (11&12 digits match).
290    
291    checkpoint57t_post
292    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
293    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
294      same truncation, independent of the face number: affects affects several
295      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
296    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
297      note that biharmonic viscosity + no-slip was not tested in any experiment.
298    o fix bug in non-linear free-surf side-drag ; generate new output for
299      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
300    o make mnc honor the writeBinaryPrec flag for most kinds of output
301    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
302    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
303      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
304    o add brackets in multi-terms sum to get same truncation, independent of
305      the face number (manage to get exactly same value of gU,gV at the cs-edge)
306      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
307    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
308      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
309      a maximum grid-scale Reynolds number.  Also, changes all length calculations
310      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
311      Suggested values of viscosity parameters found in mom_calc_visc.
312      Many new viscosity diagnostics available.
313    
314    checkpoint57s_post
315    o Add clearing-house for viscosity calculations, mom_calc_visc and
316      correct numerous bugs in LeithD and Smagorinsky discretizations.  
317      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
318      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
319      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
320      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
321      The Strain-Tension form is now called with useStrainTensonVisc=.true.
322      ViscAhStrain and viscAhTension are now retired.
323    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
324    o In response to JMC's bug report, genmake2 now ignores any soft-links
325      that it finds in the *current* directory when searching for files.
326      Soft-links found in any other source directories will still work as
327      they did before.
328    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
329      a C routine to unlimit the stack size
330    o mnc-ify pkg/aim snapshot vars
331    o mnc-ify pkg/land as requested by Daniel
332    o various changes to mnc including:
333      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
334      - output can now be grouped so that all files within a group
335          change the ITER portion of their names in lock-step together
336      - can now read ("global") PER-FACE (in addition to PER-TILE) files
337          and works with both EXCH1 and EXCH2 (but needs more testing)
338      - writing works for all verification test cases w/ g77 on Linux
339    
340    checkpoint57r_post
341    o make MNC variable initialization happen earlier
342    o add diagnostics for (almost) each term of the momentum Eq.
343    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
344    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
345    o remove MINIMAL_TAVE_OUTPUT option ;
346      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
347    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
348      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
349    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
350    o add time-dependent SST, SSS control
351    o cost terms in ecco/ modularized (new cost_generic.F)
352    o cost_averages routines are modularized (new cost_averagesgeneric.F)
353    o new infrastructure for seaice model vs. obs misfits in seaice/
354      * driver from the_main_loop.F is seaice_cost_driver.F
355      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
356      * gradient check in Exp. 6a of natl_box_adjoint/
357    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
358      (see README file)
359    
360    checkpoint57q_post
361    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
362    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
363      - bug was reported by Jean-Michel and Ian Fenty
364    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
365      update exp. cpl_aim+ocn output.
366    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
367      Needed for high-res. runs with large global files
368      to be able to limit tapelev size
369    o Changed some tests for adjoint:
370      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
371      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
372      * global_ocean.90x40x15/ back to default 3-level checkpointing
373    o Modifications to enable scripted COMMON to MODULE conversion
374      * verification/OpenAD/code/ has necessary scripts and description;
375      * converts, compiles and runs successfully;
376    
377    checkpoint57p_post
378    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
379    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
380      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
381    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
382    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
383      (was already the case for dissipation with mom_vecinv,
384       and also the case for grad.PhiHyd when staggered-timeStep)
385      This will allow to put dissipation out-off the AB time-stepping.
386     Unfortunately, affects truncation error. Update output of exp. that "fails"
387      (cg2d matching number) and leave the others for later: front_relax(10),
388      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
389      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
390    
391    checkpoint57o_post
392    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
393      (2) its ready to be documented during the 20050801 DocFest
394    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
395      for ideal_2D_oce and lab_sea on linux_ia32_g77
396    o set to #undef CTRL_SET_OLD_MAXCVARS_30
397      in global1x1_tot/code_seaice_adj to access indices 32, 33
398      (worth another tag)
399    
400    checkpoint57n_post
401    o adding precip control xx_precip 32
402    o adding swflux control xx_swflux 33
403    o Replacing 10 forcing penalty cost routines by 1 generic.
404    o Implementing partitioning in time-mean and variable adjustment
405      for atmos. state.
406    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
407    o in natl_box_adjoint:
408      * updated exp 1 to 10
409        (but does not have time-mean vs. variable split results yet)
410    o updated global1x1/*_seaice_adj/
411      to incorporate latest changes
412    o enable useSingleCpuIO for mdsio vector routines
413      (applies in particular to tapelev I/O)
414    o removed inefficient K-loop in all active_file*control*.F
415    
416    checkpoint57m_post
417    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
418      and advect_cs (use EXCH-2 and standard cs-32 grid files).
419    o pkg/exch2: filling of face-corner halo regions is optional
420      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
421    
422    checkpoint57l_post
423     tag before updating tutorials (pre-release-2)
424    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
425       for output and interpolation of input fields onto model grid)
426    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
427       Affects results of exp. rotating_tank ; update output.txt.
428    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
429          and taking the square quantity and/or using a fraction-weight field.
430    o fix aim_diagnostics_init.F mate numbers.
431    o add mnc output capability to diagnostics/diagstat and update
432      our cvsignore files for the ACSII output generated
433    
434    checkpoint57k_post
435    o lab_sea now uses diagnostics package and provides a suite of
436      new EXF diagnostics output.
437    
438    checkpoint57j_post
439    o exf
440      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
441        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
442        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
443      * extended diagnostics output
444        - now includes all EXF variables
445        - hs, hl moved to common block
446        - separate S/R for diagnostics, called after ctrl vector is added
447        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
448        - EXFqnet contains true Qnet (i.e. includes qsw)
449      * updated verif. lab_sea, global_with_exf
450      * Rearranging hflux (exf_mapfields -> exf_getforcing)
451        to ensure that diagnostics sees a true EXFqnet
452    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
453    o diagnostics pkg: change pointers so that 1 diagnostic can be used
454      several times with different frequencies.
455    o mnc-ify the thsice package as requested by Daniel Enderton
456      - the monitor--MNC output needs work
457      - many attributes need to be added (most are currently blank)
458    o mnc-ify theaim_v23 package as requested by Daniel Enderton
459      - many attributes need to be added (most are currently blank)
460    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
461    o add Sadourny like discretization to the 4th.O vorticity advection scheme
462    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
463      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
464         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
465    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
466     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
467    
468    checkpoint57i_post
469    o Diagnostics package was changed: diagnostic allocation is now deactivated
470      by setting an empty file name in the namelist (used to be by setting 0 frequency)
471    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
472      add 1rst Order upwind vertical Shear.
473    o add a quick fix for A/B checkpointing in OFFLINE mode
474    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
475      end-run around the C/Fortran linking horror in eesup/src/timers.F
476    o added pkg/runclock: allows user to terminate run based on wall clock
477    o added non-hydrostatic scaling parameter: nh_am2
478    o pkg/my82: futile attempt to make results compiler-independent by adding
479      some "_d 0", etc. no effect.
480    o for mnc output, fill the 'T' coordinate var with myTime and create a
481      separate 'iter' variable for iteration count
482    o pkg/diagnostics:
483      add new capability: output of Global/Regional & per-level statistics ;
484      tested against monitor output (including land & thSIce) on various exp.
485    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
486    
487    checkpoint57h_done
488      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
489      data.diagnostics, data.gchem, data.ptracers) is done.
490    
491    o pkg/diagnostics: prepare for Global/Regional statistics.
492      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
493    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
494      and rename it: DIFFERENT_MULTIPLE
495    
496    checkpoint57h_post
497    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
498    o pkg/diagnostics: change output frequency, now in seconds (instead
499      of Nb of iterations). This requires to change data.diagnostics.
500    checkpoint57h_pre
501    
502    o in mnc, let the user create the output dir if both mnc_outdir_date
503      and mnc_outdir_num are false
504    o add fflags() to pkg/diagnostics which allows one to specify, on a
505      per-file basis, the file precision [default behavior is unchanged]
506    o added diagnostics to pkg/kpp, including computation of mixed layer
507      depth based on a temperature/density criterion
508    o updated verification/natl_box to test the new pkg/kpp diagnostics
509    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
510    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
511    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
512      not mnc -- this mistake was found by JMC and is now corrected
513    
514    checkpoint57g_post
515    o add Adams-Bashforth 3rd Order time stepping:
516      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
517      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
518    checkpoint57g_pre
519    
520    o make lambda[Theta,Salt]ClimRelax spatially varying
521      (default remains spatially uniform constant based on tau)
522    o added new control variables
523      * init. uVel, vVel, etanN
524      * lambda[Theta,Salt]ClimRelax
525    o separate masks used for ctrl_pack/unpack 'from write_grid' output
526      (suggested by G. Forget)
527    
528    checkpoint57f_post
529    o add parameter "baseTime" = model base time = time at iteration zero
530      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
531      account for baseTime shift
532    o move Coriolis arrays from PARAMS.h to GRID.h
533    checkpoint57f_pre
534    
535    o mnc-ifying the seaice package
536    o introduced an alternative length scale calculation for use in the limiting
537      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
538    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
539    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
540      as well as grad(vort3).  Made it compatible with both approximate form
541      for the cubed sphere and full form of these gradients.  Added flag
542      useFullLeith to select between approximate and full form.  
543    o add "d0" in getcon.F to reduce differences between compilers/platforms
544      update output.txt of exp. fizhi-gridalt-hs
545    o change port_rand funtion to allow to set the seed.
546    o fix obscure MNC bug involving conversion between reals and integers
547      - it caused no problems with certain (eg. gcc, ifc) compilers but the
548        new version is now more standards-compliant
549    o adjoint-related modifications
550      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
551      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
552      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
553    
554    checkpoint57e_post
555    o Adding eddy stress controls a la Ferreira et al.
556    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
557    
558    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
559      update output.txt of exp. fizhi-gridalt-hs
560    o add more "Z" dimensions and associated coordinate vars to MNC
561    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
562    o parameter calendarDumps: when set, approximate months (30-31 days) and years
563      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
564      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
565      months and years.  Requires pkg/cal.
566    o diagnostics: add pickup functionality
567      - off by default for backwards compatibility
568      - current version only uses MDSIO -- MNC will be added
569    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
570    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
571    
572    checkpoint57d_post
573    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
574    o modify verification/ideal_2D_oce so that it tests the creation of mnc
575      output from the diagnostics package
576    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
577    o make genmake2 more portable by using ".$FS" instead of ".f" for more
578      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
579    o add coordinate variables to the MNC output from the diagnostics package
580    o change MNC-flags default value: true when useMNC=TRUE
581    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
582      the ability (off by default) to read the grid information using MNC
583    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
584    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
585    o do snap-shot diagnostics at the middle of the time-interval (instead of
586      at the end).
587    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
588      new test for AIM with thSIce + slab-ocean
589    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
590    o move state variable diagnostics to the beginning of the time step ;
591      (note: still needs some work specially for snap-shot diagnostics)
592      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
593    
594    checkpoint57c_post
595    o Change testing option (-ieee) to get closer agreement between g77 & ifort
596    o generate new output.txt files on faulks with g77 & the new -ieee option
597    checkpoint57c_pre
598    
599    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
600      update output.txt of exp. global_ocean.90x40x15
601    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
602      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
603    o add saltFlux(+File) forcing capability with periodicExternalForcing
604    o allow to use pkg diagnostics for GM-Redi & ThSIce output
605    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
606    o improvements for the MNC output from DIAGNOSTICS:
607      - correct handling of the unlimitied dimension
608      - all dims now have associated coordinate variables
609      - variables located at U, V, and Corner ("Z") points are now written
610        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
611        *all* data points are output
612    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
613    o added pkg/seaice/seaice_monitor.F
614    o mdsio_readfield.F can now read files visible only to master MPI process.
615    o pkg/seaice: some test code for ice-modified ocean stress
616    o exf_getffields interpolation defaults to bilinear for all scalar forcing
617      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
618      spurious negative numbers for precipitation and humidity.  Will cause
619      some small numerical differences for integrations using pkg/exf/exf_interp.F.
620    o pkg/ctrl/
621      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
622        May be enabled via doPackDiag
623      *  introduce z-scaling of
624         + gradient (doZscalePack) and
625         + control (doZscaleUnpack)
626    o pkg/mdsio/
627      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
628      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
629    
630    checkpoint57b_post
631    o simplify options in diagnostics_fill arguments (remove weird combinations)
632    o fix MNC coordinate variables so that they now contain per-face index
633      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
634      general, EXCH2 grids are only aligned to a "local" coordinate system
635    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
636    o Implement instantaneous output within pkg diagnostics:
637      setting a negative frequency in data.diagnostics produces
638     "snap-shot" output (as opposed to time-average if freq > 0)
639    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
640      NOTE: change ptracer diagnostics name: use 2 characters to work with
641            more than 9 tracers. Add also diagnostics of advect & diffus flux.
642    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
643      becomes the coordinate variable for the 'T' dimension
644    o add CF-style coordinate variables to MNC
645      - just a first cut:  numbers are meaningless on the cubesphere and
646        missing along the T axis but otherwise it works!
647    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
648    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
649    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
650      this is based directly on what the model compute, so that the content of
651      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
652    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
653    o clean up build options files for SunOS, in particular
654      - remove -traditional from xmakedepend
655      - change -xarch=v9 to -xarch=native for f77
656      - restore use of make (not gmake)
657      - add CC=gcc if using g77
658    o changes per discussion of AM, JMC, & EH3 today:
659      - move redundant "grid" variables out of "state" -- in preparation of
660        creating proper CF-style coordinate variables and in recognition
661        that any/all grid variables can be easily copied (eg. w/NCO) from
662        the grid files into any of the other NetCDF files
663      - *always* output grid variables with MDSIO (this will eventually be
664        changed)
665      - output MNC grid file if useMNC is true
666    o every instance of _END_MASTER() has been found and replaced with
667      _END_MASTER( myThid ) in order to satisfy certain picky Sun
668      preprocessors
669    o re-arrange diagnostics pkg initialisation:
670     - allow each package to extend the available diagnostics list
671     - add some checking and fix small problems (multi-threaded, ...)
672     - new S/R diagnostics_fill (replace fill_diagnostics):
673       look through the short list of active diag. (instead of the long list)
674       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
675    
676    checkpoint57a_post
677    o this set of changes restores TAMC compatibility
678      tested for global_ocean.90x40x15 adjoint on trough
679      (what a pain)
680    
681    checkpoint57a_pre
682    o some modifs in tools/build_options for sunos
683    o call ctrl_pack for ctrl at end for optimcycle=0
684    
685    checkpoint57
686    o add horizontal bi-harmonic viscosity for vertical velocity
687      - new parameter viscA4W (defaults to viscA4)
688      - affects only non-hydrostatic code
689      - to be done: no-slip lateral boundary conditions
690    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
691    o implement Implicit Vertical advection for pTracers
692    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
693      (implemented also for implicit vertical diffusion & advection)
694    o OBCS: extend application of tracer open boundary conditions
695      to a strip beyond the boundary of width Olx/Oly
696    o add call monitor to TAF set of required calls (flow directives)
697      and include in natl_box_adjoint
698    o untangle a few ifdefs related to cost, ctrl, autodiff
699      untangel a few ALLOW_ECCO_OPTIMIZATION
700    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
701      (theta2, salt2 in ecco_cost_weights)
702    
703    checkpoint56c_post
704    o OBCS as control variables
705      - update ctrl_ad_diff.list, obcs_ad_diff.list
706      - remove balance of obcs controls from default
707      - fix index bug nobcs in ctrl_init
708      - fix dummy fields filen in ctrl_pack
709      - add dummy weights for obcs
710    o lsopt: comment out fort.94 output
711    o optim:
712      - remove unnecessary header files
713      - adjusted namelists
714      - add xerbla.F to Makefile
715    o exf:
716      - multiple modifications of exf_check_range
717      - unit change in exf_init_runoff from [m/year] to [m/s]
718    o mdsio:
719      - i/o-vector change debugLevel from debLevA to debLevB
720    
721    checkpoint56b_post
722    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
723      is called from DO_THE_MODEL_IO
724      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
725      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
726      - clean up PTRACERS_WRITE_TIMEAVE a little
727    o add another verification experiment that tests both the cfc-pkg and
728      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
729      reactive tendencies treated inline with regular timestepping
730    o testreport previously did a lousy job of comparing small numbers, so
731      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
732      implemented in the little c-progam tmp_cmpnum.c which is embedded in
733      testreport.
734    o ptracers_monitor: bug fix for MPI
735    
736    checkpoint56a_post
737    o GCHEM: finish reorganizating the package
738      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
739        (introduces another 3D-array for each passive tracer, but only if
740        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
741        gchemTendency is not needed because the timestep is done separately)
742      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
743      - GCHEM is now---more or less cleanly---separate from PTRACERS
744      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
745        so clear to me how that should be done in a general way.
746    o CFC: improve formatting of output in CFC_ATMOS
747    o PTRACERS:
748      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
749        that ALL experiments with ptracers enable can be checked. This makes
750        GCHEM_MONITOR obsolete.
751      - include a runtime parameter PTRACERS_monitorFreq that defaults to
752        monitorFreq
753      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
754    o add PTRACERS (PTR0[1-5]) to testreport output
755    o exf_check_range:
756      * default changed to .TRUE.
757      * will check values for niter0 if debLevA, every timestep if debLevB
758      * STOP in exf_check_range if 'out of range'
759      * range chosen generous to allow for potential extema
760      TBD: a version with stricter range
761           permitted range would be runtime parameters
762    o GMredi:
763      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
764      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
765      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
766    o GCHEM:
767      - move call to GCHEM_FORCING_SEP, so that it is now called before
768        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
769      - introduced a useGCHEM runtime flag and applied it everywhere.
770      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
771        this flag is now only visible within GCHEM-pkg routines.
772      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
773        be replaced by a 3D array that is computed before thermodynamics; for
774        this, the tracer ID iTracer had to be included into the parameter list
775        of ptracers_forcing
776      - set up forward_step to call gchem_forcing, that will replace
777        gchem_forcing_int in ptracers_forcing
778      - cleaning up
779    o small cleaning of exch2: remove files that are also in eesupp/src
780    
781    checkpoint56
782    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
783    o mnc: cleanup "full" files--fixes out-of-memory problem
784    o ECCO-GODAE
785      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
786      * fully merged and updated from SIO code
787        windstress sign change affects
788        - exf_inscal_[u/v]stress
789        - sign of xx_tau[u/v] adjustments
790        - signs in cost_scat
791      * ctrl_get_gen: avoid update of tau[u/v] for first few days
792      * natl_box_adjoint updated and compressed
793      * 2-level checkpoint switch added
794        (tested in EXP. 1 of natl_box_adjoint)
795      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
796    o SVD
797      * first complete, non-hacked version for SVD calculations
798      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
799        performed via direct access files admtlm_vector.it????
800        (via ctrl_[un]pack)
801      * optimcycle is used for ARPACK iteration counter
802        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
803      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
804        and add linear transforms where necessary
805      * controls are initial/final SST, SSS (can be extended; need to check
806        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
807    o mdsio: filename info to both stderr, stdout
808    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
809      from sign change
810    
811    checkpoint55j_post
812    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
813      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
814    o add consistent build directories and .cvsignore files to verification
815    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
816    o make all subroutines 30 or less characters in length for certain older
817      compilers to work (a thorough search only turns up two routines in
818      pkg/ptracers)
819    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
820      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
821    
822    checkpoint55i_post
823    o change arrays for total vertical diffusivity (2.D if explicit,
824      3.D if implicit) ; each ptracer uses its own background value.
825    o added mnc/NetCDF output capability to ocn_compon_interf
826      - added bits to verification/cpl_aim+ocn so that it can run on
827        ITRDA and other clusters without the mpirun "-wd" option
828    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
829      configuration
830    o give MNC the ability to create additional files rather than
831      exceeding a specified file size limit "MNC_MAX_FILESIZE"
832      - the default is just less than 2GB which is a practical limit
833        on many systems
834    o Compute the non-local term using either KPP vertical diffusivity (=default)
835       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
836    
837    checkpoint55h_post
838    o add verification test "vermix"
839    o remove all the *_ioinc flags and replace with the single global
840      outputTypesInclusive flag
841    o allow to set a vertical profile of vertical diffusivity for T & S
842    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
843    o useMNC moved from data.mnc to data.pkg
844    
845    checkpoint55g_post
846    o Renaming carbon AD experiments to comply with testreport conventions
847    o Updating adjoint of Held-Suarez hs94.1x64x5
848    o Fixing directives for non-ECCO forward_step, after ECCO directives
849      have been fixed to avoid recomp. of do_oceanic_phys
850      Works well for global_ocean.90x40x15,
851      but recomp. issue remains for carbon
852    o Updating adjoint output for natl_box_adjoint after
853      pkg/ecco has been modified (see taga c55d_post)
854    
855    checkpoint55f_post
856    o rename to timeave_init_fixed
857    
858    checkpoint55e_post
859    o some delicate re-shuffle of store directives to avoid one
860      extra call of do_oceanic_physics
861      affects ecco_the_main_loop.F, do_oceanic_physics.F
862      checkpoint_lev1_directives.h
863    o NB: this may break global_ocean adjoint temporarily,
864      but it is clear how to fix it. Will do later, need this now.
865    
866    checkpoint55d_post
867    o ECCO specific cost function terms (up-to-date with 1x1 runs)
868    o ecco_cost_weights is modified to 1x1 runs
869    o modifs to allow observations to be read in as
870      single file or yearly files
871    o enable to read exf forcing fields as either
872      single file or yearly files (flag useExfYearlyFields)
873    checkpoint55d_pre
874    
875    o switch between 2-level and 3-level checkpointing
876    o add ability of MNC to write local and "partial" (eg. 2D slices where
877      the full 3D field is never actually stored) arrays to NetCDF files
878      with the correct (that is, the complete multi-dimensional) set of
879      array indicies
880      - used in mom_vecinv() to write the diagFreq output
881      - tested (demonstrated) in verification/aim.5l_cs
882    o further mnc-ification
883      - add verification/lab_sea to the list with mnc setups
884      - fix undefined mnc v-names in cd_code
885      - add kpp to mnc output (both snapshot and timeave)
886    o non-hydrostatic code
887      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
888        in calc_gw.F
889      - defaults to viscAh
890      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
891        friction or Leith) in non-hydrostatic mode, as long as there is
892        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
893    o pkg/cost
894      extend simple cost functions to treat time mean quantities
895      (T,U,V) via cost_accumulate_state from cost_tile
896    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
897        be 2 times larger than the minimum size the advection scheme requires.
898        now get a perfect conservation of salt in advect_cs test-exp (updated)
899    o GGL90 (Gaspar's TKE mixed layer)
900      - add horizontal diffusion of TKE, requires exchanges in
901        do_fields_blocking_exchanges, horizontal diffusivity is zero by
902        default. In OPA there is no horizontal diffusion of TKE but the
903        mixing coefficients are computed from a horizontal average of TKE of
904        6 points or so. I think that diffusion has a little more physical
905        justification.
906      - clean up ggl90_calc in the hope of reducing memory usage (this hope
907        was in vain)
908      - mask tke-variable in ggl90_init
909    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
910    o fix biharmonic diffusion on CS-grid.
911    o more obcs stuff
912      - added obcs_external_fields_load as an alternative to the EXF-pkg option
913        for reading boundary values. This routine is called from
914        obcs_prescribe_read
915      - updated obcs_check
916      - changed sponge layer relaxation parameter units for days to seconds
917      - turned off sponge layer by default
918      - changed argument list of OBCS_CALC to myTime+deltaTclock
919      - fixed about 35 bugs in obcs_external_fields_load
920    
921    checkpoint55c_post
922    o obcs stuff
923      - new runtime flags useOBCSprescribe, useOBCSbalance
924      - re-arranged obcs_calc
925      - moved exf_getobcs to obcs_prescibe_read
926        obcs_prescibe_read is called after ORLANSKI stuff
927        and independent of it (executable can contain all).
928      - updated obcs_check
929      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
930        These may be necessary only if tangential velocities are
931        prescribed at OB, not sure, needs testing.
932    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
933      which simplifies the calls and passes the ifc check-bounds test
934    
935    checkpoint55b_post
936    o add a 2D scalar, Z location, exchange_2 routine.
937    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
938      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
939      affects advect_cs results (for the wrong reason): update output.txt
940    o use a more standard discretization for biharmonic viscosity ;
941     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
942      affects results of dome set-up: update output.txt
943    o fix gad_advection.F (CubedSphere part), back to version 1.23
944    o fix bug in mom_vi_del2uv.F (CubedSphere part).
945    
946    checkpoint55a_post
947    o merged code to
948      * prescribe/read time-dependent open boundaries
949        (works in conjunction with exf, cal)
950      * sponge layer code for open boundaries
951      * each boundary N/S/E/W now has its own CPP option
952        (healthy for the adjoint)
953    
954    checkpoint55
955    o up-to-date adjoint of previous breaks
956      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
957      - global_ocean_ebm: adjoint still needs fix (TLM ok)
958      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
959      - carbon: * remove tr1-related adjoint verification
960                * add ptracer as control variable
961    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
962      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
963    
964    checkpoint54f_post
965    o in verification/carbin/ remove experiment related to
966      ALLOW_PASSIVE_TRACER (array tr1 etc)
967      code_ad/ input_ad/ results_ad
968    
969    o add two new packages
970      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
971        + subject to optimization (memory)
972      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
973        + subject to reordering (many GOTOs in the original code)
974        + so far opps is called for every (i,j) point, and then operates in
975          the vertical; one may want to reorder the scheme in order operate in
976          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
977          fields)
978    o overhaul of IO so that we now have flags for MDSIO and/or MNC
979      - all verification tests compile and run with linux_ia32_g77
980      - defaults are compatible with current input files--nothing
981        should change if you were not previously using MNC
982      - MNC output has been added in numerous places (eg. timeave)
983        but there are still a few writes not yet do-able with MNC
984        (this is in progress)
985      - flags now allow for either/or/both use of MDSIO and MNC and
986        documentation will soon follow
987      - numerous small formatting cleanups for ProTeX
988    o add version info (via BUILD_INFO.h) to MNC and stdout
989    
990    checkpoint54e_post
991    o add two new packages
992      - pp81 (Packanowski and Philander, 1981), Richardson number and
993        stratification dependent mixing
994      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
995      - these scheme operate in a similar manner as KPP (without ghat, of
996        course), however there is only one diffusivity that is used for both
997        temperature and salinity (and passive tracers)ç
998    o add offline package
999    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1000      provided by Stephanie Dutkiewicz
1001    o genmake2: add ability to search for C compilers and cleanup test output
1002      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1003    
1004    checkpoint54d_post
1005    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1006    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1007      leading to additional shift by 5 days each year of integration
1008       (i.e. leading to considerable offset over the years)
1009    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1010    o start with no AB and no initial filtering (staggerTimeStep):
1011      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1012    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1013      (external loading & cpl import/export stay in forward_step.F)
1014    o update coupling interface to work with new staggerTimeStep
1015    o change MDSIO ptracers_pickup.
1016    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1017    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1018    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1019    
1020    checkpoint54c_post
1021    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1022      this affects (truncation error) output.txt of test-exp:
1023       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1024    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1025    o change Qnet to always be the net heat flux, (+upward).
1026      affects (truncation error) output of natl_box exp.: updated
1027    o define the max number of passive tracers in PTRACERS_SIZE.h
1028    o start to test mnc routinely in exp0
1029    o add sea-ice loading (sIceLoad) as a new forcing field.
1030    
1031    checkpoint54b_post
1032    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1033       impressive on Altix and Opteron systems)
1034    o diagnostics can now write NetCDF files through the mnc package
1035    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1036    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1037    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1038      affects (truncation error) output of lab_sea & natl_box exp.: updated
1039    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1040    
1041    checkpoint54a_post
1042    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1043    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1044    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1045    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1046      + internal_wave (shift in writing cg2d_ini_res)
1047    checkpoint54a_pre
1048    
1049    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1050      - modified verification/lab_sea and natl_box_adjoint accordingly
1051    
1052    checkpoint54
1053    checkpoint53g_post
1054    o prepare splitting of thermodynamics: store convect.counter in common block
1055    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1056      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1057    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1058    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1059    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1060    o restore adjointability
1061    
1062    checkpoint53f_post
1063    o modifications that affect AIM experiment results (update output.txt):
1064      - no advection of S at top interface Nr (pkg/generic_advdiff)
1065      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1066    o AIM pkg:
1067      - include stability function into surf.Flux derivative relative to Tsurf
1068      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1069    
1070    checkpoint53e_post
1071    o merged cylindrical coord configuration
1072    o added rotating_tank experiment
1073    checkpoint53e_pre
1074    
1075    checkpoint53d_post
1076    o faulks upgraded: re-generate output.txt that have changed:
1077       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1078    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1079    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1080    o added Sadourny discretization of Coriolis
1081      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1082      - re-enabled use of omega3 (useAbsVorticity)
1083    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1084      vector-invariant equations
1085      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1086    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1087      hopefully without new bugs
1088      - still to do: biharmonic friction for non-hydrostatic w
1089    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1090    o regenerated output for global_ocean_ebm (using -ieee)
1091    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1092      of mom_common/
1093      - simple re-arrangement of instructions within computing loop
1094    checkpoint53d_pre
1095    
1096    checkpoint53c_post
1097    o new version of coupler for AIM+thSIce and Ocean models
1098     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1099     - land: change Evaporation of snow
1100     - aim with thSIce: fix bug in snow-precip.
1101    o changes to calc_gw.F
1102     - bug fix for w^2 term near the bottom boundary
1103     - (hopefully) improve the lateral slip boundary condtions for use with
1104        partial/looped cells
1105      - because the bug fix changes two verification experiments anyway (exp5
1106        and plume on slope), change the lateral boundary condition from half slip
1107        to the value of no_slip_sides
1108    o ebm package wasnt quite up to the parallel task. Fixed that.
1109    o Adjoint of EBM package + verification
1110      * TLM OK
1111      * ADM not sufficient accuracy yet (needs further testing)
1112    
1113    checkpoint53b_post
1114    o Commiting new energy balance model to repository
1115      * package is pkg/ebm
1116      * verif. is verification/global_ocean_ebm
1117      * references are in ebm_driver.F
1118    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1119    C        Global thermohaline circulation. Part I:
1120    C        Sensitivity to atmospheric moisture transport.
1121    C        J. Climate 12(1), 71-82
1122    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1123    C        Global thermohaline circulation. Part II:
1124    C        Sensitivity with interactive transport.
1125    C        J. Climate 12(1), 83-91
1126    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1127    C        Destabilization of the thermohaline circulation
1128    C        by atmospheric eddy transports.
1129    C        J. Climate 7(12), 1870-1882
1130    o Will need long integration testing.
1131    checkpoint53b_pre
1132    
1133    o created pkg/mom_common in preparation for variable viscosity code
1134    o renamed and split ini_mnc_io
1135    o pkg/land: only liquid water can diffuse or run-off
1136    o AIM using land: soil wetness availability account for snow
1137    o added printMapIncludesZeros to EEPARMS namelist
1138    
1139    checkpoint53a_post
1140    o restore TAMC compatiility for exf_constants.h
1141      (no usage of _d in .h)
1142    o Additional storing in KPP in an attempt to fix
1143      TAMC problem with adjoint of KPP code.
1144      (no success...)
1145      Identical code works fine with TAF.
1146    o Fixed verification/natl_box_adjoint experiments.
1147      Initial conditions for Experiments 4 and 5 are now
1148      set to "SEAICE_initialHEFF=0", which is more reasonable,
1149      and hence gives results closer to that of Experiment 2.
1150      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1151    
1152    checkpoint53
1153    o stable checkpoint with up to date adjoint
1154      TLM tests only run for 1st grdchk at the moment. Its unclear if
1155      this is a code problem or a problem with resetting code for g_
1156      variables that is being autogenerated wrong.
1157      Otherwise:
1158       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1159       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1160         are both still in chaos following their security messes.
1161    
1162    checkpoint52n_post
1163    o various build (mostly genmake2) changes including:
1164      - ability to build/run more easily within Cygwin and MacOS X
1165      - more complicated Makefiles with a stronger dependence on Gnu Make
1166    o pkg/seaice modifications
1167      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1168        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1169        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1170      - changed proxy for geostrophic velocity and updated
1171        verification/lab_sea/results/* accordingly
1172      - removed ADI dynamic solver from pkg/seaice
1173      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1174        they caused a segmentation fault under certain circumstances
1175      - removed unused field WATR
1176    o bug fix in exf-package:
1177      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1178         now reflect that.
1179    o small fixes in the cal-package:
1180      - set reference date to first of January for the 'model'-calendar
1181      - failing of cal_CheckDate in cal_FullDate now actually results in a
1182        warning
1183    o small modifications in exf-package to increase flexibility:
1184      - change climtempfreeze from a constant to a runtime parameter that
1185        is specified in data.exf_clim (default = -1.9)
1186      - introduce runtime parameter windstressmax (default = 2.0) that is
1187        specified in data.exf
1188    o fix in pkg/thsice:
1189      - update Evap (Tsf changes) to be consistent with Latent heat flux
1190      - maintain snow precipitation unchanged (even if Tsf >=0).
1191     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1192    
1193    checkpoint52m_post
1194    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1195      this does not change any of the results, because myIter=0 in swfrac always
1196      lead to jwtype=2 (the default anyway), but the call makes little sense
1197      as a default
1198    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1199    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1200      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1201    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1202    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1203    o extending useSingleCpuIO option to work with new exch2 I/O format
1204      - old-style, missing-tile I/O is still accessible by defining CPP
1205        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1206    o monitor package can write to NetCDF files and/or STDOUT
1207    o fix re-definition bug in MNC_GRID_INIT_ALL()
1208    o doc/api_reference added
1209      - a framework for building an API Reference Manual using all
1210        the "protex" comments embedded in the code
1211      - see pkg/generic_advdiff, pkg/mnc for examples
1212    o MNC:
1213      - make myThid the last argument for all subroutines
1214      - new default for the grid files: NO halos
1215      - add useMNC and other run-time flags
1216      - separate per-file-group handling of the unlimited dimension
1217      - early initialization of MNC w/ flags read at the eeboot stage
1218        and lookup tables set in initialize_fixed
1219      - write all MNC output to a freshly-created directory
1220    o thermodynamics sea-ice (thsice) is now tested with testreport.
1221    o test exp. advect_cs: use the standard cs32 grid ; update output.
1222    o Added functionality to grdchk:
1223      pick global i,j,k position (or nearest wet) where to perform check.
1224    
1225    checkpoint52l_post
1226    o new land formulation:
1227      a) use ground enthalpy as prognostic variable to ensure exact
1228         energy conservation.
1229      b) account for water temperature and for latent heat of freezing
1230         in all processes (rain, run-off, ground storage)
1231      c) compute surface and ground temperature implicitly.
1232    o aim_v23 modification for new land model:
1233      a) Treat separately land / ocean / sea-ice surface fluxes
1234         to allow implicit computation of land & sea-ice surface temp.
1235      b) add snow precipitation.
1236    checkpoint52l_pre
1237    
1238    o fix problem (when 1 tile is empty) in min/max monitor.
1239    o fix bug in timeAve (u,vZetatave in common block)
1240    o no restoring terms under ice for pkg/seaice
1241    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1242    o bug fix for pkg/seaice pickups
1243    o change MNC call locations and add coordinate attributes
1244    o mask vorticity at the corner ; affects global_ocean.cs output
1245    o fix ini_curvilinear_grid ; test CS experiments with mpi
1246    o aim.5l_cs: modify sea-ice fraction input file ; update output
1247    o exf: Adding simple range check routine for exf fields after read
1248    
1249    checkpoint52k_post
1250    o removed top-level directory "diags"
1251      - we migrated these functions to pkg/timeave a long time ago
1252    o fixed bug introduced in pkg/monitor
1253    o accuracy ctrlprec = 32 insuffient for gradient checks using
1254      averaged fields (I/O via cost_averages)
1255      -> use ctrl.h in active_file*.F to control I/O precision.
1256    o paramter list of CALL ADTHE_MAIN_LOOP
1257    o added initial do_the_model_io to ecco
1258    o set all ...Freq to zero after cost_final
1259      taveFreq, dumpFreq, pChkptFreq
1260    o MAIN and ECCO differentiability restored
1261    
1262    checkpoint52j_post
1263    o fix nchklev in tamc.h for global_ocean...
1264    o Bringing flow and store directives up-to-date
1265    o Really weird thing!
1266      call do_the_model_io from the_main_loop with parameters
1267      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1268      TAF places a faulty re-call of initialise_varia
1269      after cost_final call which should not be there!
1270    checkpoint52j_pre
1271    
1272    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1273      error messages
1274    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1275    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1276      debug output
1277    o modfied mdsio_writefield.F to handle non-global files under exch2
1278    o update AIM Cubed-Sphere exp (aim.5l_cs):
1279      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1280    o update AIM Equatorial Channel exp:
1281      use standard aim_v23 pkg and change the SST fields to be more realistic.
1282    o globalFile now works with exch2
1283    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1284      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1285    o limit timeave output for hi-res integrations
1286    
1287    checkpoint52i_post
1288    o removed CPP_EEOPTIONS.h from verification/*/code
1289    o updated the tiling for global_ocean_pressure
1290    checkpoint52i_pre
1291    
1292    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1293      the old pkg/aim).
1294    
1295    checkpoint52h_pre
1296    o shortened offending lines in exch2_send_rx?.template
1297    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1298    o genmake2: add build & execute test for NetCDF code
1299    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1300      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1301    o added useSingleCPUIO flag to monitor.F and mon_out.F
1302    o added temporary hack for sea-ice dynamics on the cube:
1303      metric terms are ignored and it is assumed that
1304      there is no sea-ice on cube faces 1, 2, 4, and 5.
1305    
1306    checkpoint52f_post
1307    o added exch2 cube routines to pkg/exch2
1308    o modified hs94.cs-32x32x5 to use it
1309    o added new grid files to hs94.cs-32x32x5
1310    checkpoint52f_pre
1311    
1312    checkpoint52e_post
1313    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1314      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1315    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1316      to work with implicit vertical advection and AB ;
1317    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1318    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1319     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1320    checkpoint52e_pre
1321    
1322    o fix bug in impldiff when Nr=1 or Nr=2.
1323    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1324    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1325    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1326      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1327    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1328    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1329    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1330    
1331    checkpoint52d_post
1332    o re-tiled many expts to allow comparison in multi-processor mode
1333      - updated output accordingly
1334      - changed hs94.128x64x5 to use intial T from file rather than use the
1335        random number generator
1336    o add infrastructure in model routines for fizhi and gridalt packages
1337    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1338    o changes to permit hi-res, cubed-sphere, configuration
1339      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1340      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1341      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1342        of surface winds for the cube
1343      (A verification experiment, based on global_ocean.cs32x15, but with
1344       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1345       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1346       complete with example surface forcing files and matlab scripts to look
1347       at the output and compare it with that of global_ocean.cs32x15.)
1348    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1349       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1350       to conform to the common rule.
1351    o check-in the first version of the coupler + interfaces for multi-components
1352       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1353       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1354       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1355       - ocean and atmos. share the same horizontal grid (no interpolation).
1356       - exchanges between component and coupler is done in forward_step
1357    o new verification experiment, cpl_aim+ocn:
1358       coupled ocean - AIM atmosphere on cs32 grid.
1359    
1360    checkpoint52d_pre
1361    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1362    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1363    
1364    checkpoint52c_post
1365    o Fixing OPTIONS files for use of exf:
1366      - ALLOW_ECCO not needed
1367      - ECCO_CPPOPTIONS.h should not be included from
1368        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1369        as has been the case in the past
1370      - All cal/exf related options are currently set in
1371        single header file. Should remain so until we
1372        agree on a consistent new policy.
1373    o Removed all CPP options for cal package.
1374      cal has no more CPP options.
1375    o modified STOREs in GAD_ADVECTION
1376    o corrected key comp. for passkey
1377    
1378    checkpoint52b_post
1379    o new version: "thsice" of thermodynamic sea-ice pkg:
1380     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1381     - modify fluxes but do not change theta directly;
1382     - light cleaning of bulk_force pkg (still needed with thsice).
1383     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1384       + output_thsice.txt to test thsice & bulk_force pkgs.
1385    o put back grid & coriolis monitor output.
1386    checkpoint52b_pre
1387    
1388    o call "do_the_model_io" at the beginning (=> dump initial state)
1389    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1390    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1391      (need info on NUMBER_OF_PTRACERS)
1392    o missing PTRACERS headers in some routines
1393    o default tamc.h in pkg/autodiff supposed to crash
1394      to ensure proper customization
1395    
1396    checkpoint52a_post
1397    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1398      - moved surfaceTendencyTice from pkg/seaice to main code
1399      - subroutine FREEZE_SURFACE now limits only surface temperature
1400        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1401        => new output.txt for global_ocean.cs32x15 & global_with_exf
1402      - keep the old version of FREEZE for backward compatibility;
1403        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1404      - corresponding modifs for TAF directives
1405    o added surface flux output variables to TIMEAVE_STATVARS
1406    o time-averaged output for pkg/ptracers
1407    o fix problem with ECCO-related divided adjoint
1408      snapshot file was missing some ad-variables,
1409      but no warning issued by TAF
1410    
1411    checkpoint52a_pre
1412    o some bug fixes for #undef REAL4_IS_SLOW
1413    
1414    checkpoint52 = ecco_c52_e35
1415    o after testing adjoints of checkpoint51u_post
1416    
1417    checkpoint51u_post
1418    o this is the post-merge tag of the ecco-branch
1419      (needs another clean checkout and re-testing)
1420    o various natl_box_adjoint configs and results
1421      but no input fields
1422    o obcs adjoint not yet merged!
1423    o adding ECCO global 1x1 and 2x2 degree configs
1424    o updated/extended some store directives for seaice
1425    o pkg/ecco now containes ecco-specific part of cost function
1426    o top level routines the_main_loop, forward_step
1427      supersede those in model/src/
1428      previous input data.cost now in data.ecco
1429      (new namelist ecco_cost_nml)
1430    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1431    
1432    checkpoint51t_post
1433    o this is the pre-merge tag of the ecco-branch
1434    
1435    checkpoint51s_post
1436    o cleanup: removed various obsolete #define-s
1437    o pkg/grdchk
1438      - renamed 'ph-grd 3' to 'grad-res'
1439      - merged from ecco-branch
1440        (remaining bug fixes for obcs gradient checks)
1441      - additional high-precision output for testreport
1442        (grep for 'precision_grdchk_result')
1443    
1444    checkpoint51r_post
1445    o cleaned up or removed CPP_OPTIONS.h files
1446    o updated results for some of the tests to reflect the new
1447      optfiles (-ieee: -O0 instead of -O3)
1448    
1449    checkpoint51q_post
1450    o cd_code:
1451      - moved cd_scheme.F -> cd_code_scheme.F
1452      - separate read_checkpoint from cd_code_ini_vars.F
1453      - separated cd_code part from write_checkpoint
1454      - updated AD_SOURCE, generated .flow
1455      - added CD_CODE_VARS.h to the_main_loop
1456      - Moving cd_code specific store dir.s to pkg/cd_code
1457    o ctrl package totally restructured
1458      - pack/unpack now optional and decoupled from
1459        xx_/adxx_ I/O
1460      - ctrl_pack/unpack cleaned
1461        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1462      - confined inclusion of AD_CONFIG.h to where necessary.
1463    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1464    
1465    checkpoint51p_post
1466    o create initial cd_code package
1467      - WARNING: the initialization of fields within packages
1468        is broken because INI_FIELDS (where READ_CHECKPOINT is
1469        called) is called *before* PACKAGES_INIT_VARIABLES.
1470        This seems to be backwards since
1471        1) its important to initially zero the entire field including
1472           the "halo" region
1473        2) zeroing needs to be done *before* reading pickup info
1474           and the pickup call might or might not happen in any
1475           particular run
1476      - this needs an overhaul for R2
1477    o cleanup verification/*/code/GMREDI_OPTIONS.h
1478    o cleanup testreport
1479    
1480    checkpoint51o_post
1481    o bringing AD-related verif's up to date with genmake2
1482      - carbon/
1483      - global_ocean.90x40x15/
1484      - hs.94.1x64x5/
1485      - (front_relax/ )
1486    o (more) consistent directory structure for AD-related verif.'s
1487    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1488    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1489    o bug fix in find_alpha.F for MDJWF:
1490      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1491        change rho -> rho-rhoConst
1492      - replace call find_rho to find_rhonum
1493    o initialisation of rFlx extended to full array (required by TAF)
1494      and shifted to thermodynamics
1495    o removed PTRACERS.h in ptracers routine
1496    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1497    o Correcting initialisations for fVerU, fVerV.
1498    o helping TAF to recognize dependency on kUp for
1499      fVerU, fVerV
1500    o Replacing delZ by delR in pkg/ctrl/
1501    checkpoint51o_pre
1502    
1503    o undid all of cp51 pending some cleanups and discussion
1504    o added the [#include "AD_CONFIG.h"] statement to all files that need
1505       it for adjoint/tl #defines
1506     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1507     o removed tools/genmake since it no longer works
1508    
1509    checkpoint51n_post
1510    o modifications to make FREEZE flux visible to pkg/kpp
1511      - moved surfaceTendencyTice from pkg/seaice to main code
1512      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1513      - subroutine FREEZE now limits only surface temperature
1514        (this means new output.txt for global_ocean.90x40x15,
1515         global_ocean.cs32x15, and global_with_exf)
1516    o added surface flux output variables to TIMEAVE_STATVARS
1517    
1518    checkpoint51n_pre
1519    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1520    o added [#include "AD_CONFIG.h"] to all files that use the following
1521      defines:
1522      - ALLOW_ADJOINT_RUN
1523      - ALLOW_TANGENTLINEAR_RUN
1524      - ALLOW_ECCO_OPTIMIZATION
1525    
1526    checkpoint51m_post
1527    o incorporating changes to get TAMC/TAF working in genmake2
1528      - added new TAMC/TAF targets to the Makefile
1529      - various cleanups related to package handling
1530      - these changes should have no impact on the forward model
1531    
1532    checkpoint51l_post
1533    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1534     - faster algorithm for cal_addtime.F
1535     - higher precision arithmetic, where needed
1536     - pkg/exf *startdate variables changed from calendar date to
1537       model integration time
1538    
1539    checkpoint51l_pre
1540    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1541    o enable to apply restoring on S & T only in a latitude band.
1542    o update output (external_forcing_surf modif. change truncation errors)
1543       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1544    
1545    checkpoint51k_post
1546    o change default to: useNHMTerms=.FALSE.
1547     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1548       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1549     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1550        exp1, ideal_2D_oce
1551     - change data file of oceanic exp (leave the results unchanged for now)
1552       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1553    o set gravitySign automatically according to the vertical coordinate used
1554      (and change sign: back to "logical" value: +1 when R increases downward)
1555    o added an include barrier to the default CPP_OPTIONS.h and
1556      removed the #include "PACKAGES_CONFIG.h" from it
1557    o fix a bug in mom_fluxform (from chk51j_post)
1558    
1559    checkpoint51j_post
1560    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1561    o adjusted some flow directives (dynamics, thermodynamics)
1562    o added cubed-sphere case to test cost function
1563    o heckpoint_lev?_directives.h now include
1564      pkg-specific directives, whenever those are enabled.
1565    o Moving pkg-specific flow directives to corresponding pkg
1566      Moving pkg-specific differentiation list to corresponding pkg
1567      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1568      ---> conventions are
1569           - pkg_ad.flow
1570           - pkg_ad_diff.list
1571           - pkg_ad_check_lev?_dir.h
1572    
1573    checkpoint51i_post
1574    o merge of the branch-genmake2
1575      - knowingly breaks the older genmake
1576      - automatic generation of all ALLOW_${PKG_NAME} defines
1577      - new testreport supersedes older testscript
1578    o large number of package inclusion and header cleanups
1579    checkpoint51i_pre
1580    
1581    o new output for adjoin of global ocean vector invariant
1582    o fix for checkpoint of thermodynamic seaice and bulk_force
1583    o Steph gchem various cleanups
1584    
1585    checkpoint 51h_pre
1586    o fixed some single quotes
1587    o modify gchem pkg to be more versatile
1588    o modifications to clean up dic pkg
1589    o add pkg/cfc
1590    
1591    checkpoint51g_post
1592    o provide links for ARPACK and ADM*TLM
1593    o start removing verification/vero/
1594    o update AD-related stuff
1595      (in particular some IF-statements in model/src/ routines)
1596    o adding to verification/global_ocean.90x40x15/ adjoint of
1597      vector invariant setup
1598    
1599    checkpoint51f_post
1600    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1601    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1602      of tracer Green's fucntions for ocean inversion project.
1603    
1604    checkpoint51f_pre
1605    o Added on-the-fly spatial interpolation capability
1606        "USE_EXF_INTERPOLATION" to pkg/exf.
1607      - This is a temporary Cartesian-grid hack until
1608        the super-duper ESMF coupler becomes available.
1609      - See verification/global_with_exf/README for usage example.
1610      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1611        flags and modified pkg/seaice accordingly.
1612    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1613        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1614        non-local transport term.
1615    
1616    checkpoint51e_post
1617    o pkg/mom_vecinv:
1618      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1619      - add time-ave diagnostic of vorticity advection.
1620    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1621    o atmospheric geopotential: - include water vapor effect;
1622                                - use p^kappa in p* scaling.
1623    o land pkg: read initial state from files.
1624    o AIM : add stratospheric drag in the upper level
1625    
1626    checkpoint51d_post
1627    o change function ILNBLNK (=> last non-blank char.) to return zero
1628      (instead of the string length) when the string. char is empty
1629    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1630    o modif's to restore TAMC compatibility
1631      - avoid "_d" constructs in PARAMETER declarations
1632      - avoid interrupting lines by comment lines
1633    o Use cluster local disks for purely local I/O
1634      vs. globally visible disks needed for ctrl stuff
1635      (merged from ecco-branch)
1636      - new active_file_loc... and mdsio_..._loc routines
1637      - affected packages: autodiff, ctrl, grdchk, mdsio
1638    
1639    checkpoint51c_post
1640    o introducing integer flag debugLevel
1641      - debLevZero: suppress all output
1642      - debLevA: standard
1643      - debLevB: equivalent to current debugMode=.TRUE.
1644    o introducing pathname variable mdsioLocalDir for mdsio
1645      that can be specified at runtime
1646      (relevant for cluster I/O to local disk)
1647    `
1648    >>>checkpoint51b_post
1649    adjoint of ptracers
1650    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1651    o extended state in checkpoint_lev?, etc.
1652    o alternative ctrl/cost with tr1 or ptracer
1653    o new comlev1_bibj_ptracers
1654    o new ptracers.flow
1655    o made ptracers_forcing same as external_forcing_s
1656    o added verification for adjoint with ptracers
1657      - adm. grdchk fail so far
1658      - tlm. grdchk OK
1659      - checked tapelev/comlev recomputations: OK
1660    <<<checkpoint51b_pre
1661    
1662    checkpoint51a_post
1663    o added code for biogeochemistry package
1664      - new pkgs: dic, gchem
1665      - new subroutine in ptracers
1666    o modify code for biogeo packages
1667      - in model/src and pkg/ptracers
1668    
1669    checkpoint51
1670    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1671      - autodiff, ctrl, exf, grdchk, seaice
1672      kept separate packages
1673      - cost, ecco, obcs
1674    o updating verification/internal_wave, verification/lab_sea
1675      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1676    
1677    checkpoint50i_post
1678    o Preparing next differentiable checkpoint and sync
1679      of MAIN vs. ecco-branch
1680      - 1st step: this one is differentiable
1681      - 2nd step: next(! not this) checkpoint will have updated packages
1682                  from ecco-branch)
1683    
1684    checkpoint50h_post
1685    o new package "land": provide surface BC for AIM.
1686    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1687    o AIM: use true log-P extrapolation for near surface temp (= as in
1688        F.Molteni paper) ; update aim.5l_cs output.
1689    o New variable in PARM03 for more flexible pickups
1690    o somewhat cleaned package initialisation sequence for
1691      ctrl/ cost/ ecco/ in packages_... routines
1692    
1693    checkpoint50g_post
1694    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1695      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1696      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1697        made the default because of faster convergence than ADI
1698    
1699    checkpoint50f_post
1700    o exf totally restructured
1701      - replaced all exf_set_ routines by one generic exf_set_gen.F
1702        and made sure it's still differentiable
1703      - split exf_getffields.F into new exf_bulkformulae.F
1704      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1705      - updated adjoint/makefile and relevant verif. accordingly
1706    
1707    checkpoint50f_pre
1708     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1709          + change Evap over land. (update aim.5l_cs output)
1710     o added missing .cvsignores and made uniform across expts
1711     o changed configuration of tidal_basin_2d expt
1712     o added pkg/debug functions for tracing code in fatal crashes
1713     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1714     o new fn in pkg/monitor to stop model if solution grows too big
1715     o removed lots of single quotes from comments
1716    
1717    checkpoint50e_post
1718    o make KPP work with PTRACERS
1719     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1720       nearly a copy of kpp_transport_s
1721     - there is no analogue to SurfaceTendencyS, so I have to use
1722       gPtr(of the surface layer) instead
1723    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1724    checkpoint50e_pre
1725    
1726    checkpoint50d_post
1727    o change kpp output from multiple-record state files to single-record state
1728      files analogous to write_state.F
1729    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1730      analogous to the cg2d-related output.
1731    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1732      so that writing to internal file fn (with length 512) fails.
1733    checkpoint50d_pre
1734    
1735    checkpoint50c_post
1736    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1737    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1738    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1739    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1740    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1741    
1742    checkpoint50c_pre
1743    Merging from release1_p13:
1744    o bug fix for pkg/seaice dynamic solver
1745    o Added SEAICE_initialHEFF to pkg/seaice
1746    
1747    checkpoint50b_post
1748    o store u*,v* in gU,V instead of in guNm1,gvNm1
1749    o in order to put the momForcing out of the Adams-Bashforth:
1750      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1751      to timestep.F
1752    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1753    o re-generate output for highly sensitive test-exp:
1754       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1755    
1756    checkpoint50b_pre
1757    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1758    o corrected CPP option mismatch in exf_Bulk... functions for case
1759      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1760    
1761    checkpoint50a_post
1762    o Bug fix for merging between c50 and KPP.
1763      ikey was passed from thermodynamics to kpp_calc via
1764      common block rather than being recomputed in kpp_calc,
1765      in contradiction with new key itdkey.
1766      New key ikppkey created, and tamc.h headers updated.
1767    
1768    checkpoint50
1769    - 2nd step of merge with ecco-branch:
1770      merge changes in ecco-branch back into main trunk
1771    - bug fix in find_alpha
1772    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1773    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1774    - merged some sliced AD support routines
1775    
1776    checkpoint49
1777    merged from ecco-branch:
1778    o exf:
1779      - Enable initialisation of forcing fields to constant
1780        (runtime) values.
1781      - in exf_getffields.F
1782        Reduce i-/j-loop to interior domain, discarding overlaps.
1783        That also fixes wrong TAF-key computations for key_1, key_2
1784        with bulf formulae.
1785      - exf_init.F modify #ifdef for exf_init_evap
1786      - exf_getffieldrec.F, ctrl_getrec.F
1787        The following INT-usages are not safe:
1788          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1789          fldcount = int(fldsecs/fldperiod) + 1
1790        and were modified.
1791    o autodiff: checkpoint_lev...
1792      - updated storing for bulk formulae (some arrays were missing)
1793      - added state for seaice package
1794      - synchronized with main branch
1795    o DIVA:
1796      Modif.s in
1797      - the_main_loop.F
1798      - the_model_main.F
1799      and added cost_final_restore.F cost_final_store.F
1800      o With these changes, it is possible to fully separate
1801        the first forward run to compute the cost function (mdthe_main_loop)
1802        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1803        into separate model executions.
1804        This enables better tuning of DIVA to given queue sizes.
1805      o Loss of cost function value in consecutive DIVA runs is
1806        fixed by storing to 'costfinal' file.
1807      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1808        beginning/end of adjoint integration is accounted for.
1809      The current changes apply to TAF-1.4.26.
1810      TAF has one remaining bug, requiring one manual change
1811      (see MITgcm manual).
1812    o cal: synchronized between MAIN and ecco-branch
1813    
1814    checkpoint48i_post
1815    o Changes to restore differentiability of code w.r.t. previous tag
1816      (mostly adding new routines to make list and replacing
1817      pressure by totPhiHyd).
1818    o Updated and merged grdchk package
1819      - has both ADM and TLM checks
1820      - works for single- and multi-proc.
1821      - output cleaned
1822      - worked successfully for parallel DIVA
1823    o genmake:
1824      - Adding -platform=SP4
1825      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1826    o Modif. for DIVA:
1827      ctrl_unpack should not be called in intermediate DIVA interval.
1828      (similar thing would apply for active files such as
1829      tbar, sbar, psbar, which should not be reinitialised;
1830      only relevant for ecco-branch)
1831    
1832    checkpoint48h_post
1833    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1834    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1835    o Added SEAICE_initialHEFF to pkg/seaice
1836    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1837    
1838    checkpoint48g_post
1839    --- EOS:
1840    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1841      store total Potential in totPhyHyd for diagnostics & EOS.
1842    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1843    --- Pressure/geopotential gradient:
1844    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1845    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1846      ( changes results of global_ocean_pressure )
1847    o NLFS + z-coord.: add eta*Rho' contribution.
1848    o accurate phiHyd when using interface-W at the middle between 2 centers
1849     ( changes results of ideal_2D_oce )
1850    o includes r* 2nd term in potential gradient.
1851    
1852    checkpoint48f_post
1853    Merging from release1_p12:
1854    o Modifications for using pkg/exf with pkg/seaice
1855      - improved description of the various forcing configurations
1856      - added basic radiation bulk formulae to pkg/exf
1857      - units/sign fix for evap computation in exf_getffields.F
1858      - updated verification/global_with_exf/results/output.txt
1859    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1860      (SBO) core products, including oceanic mass, center-of-mass,
1861      angular, and bottom pressure (see pkg/sbo/README.sbo).
1862    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1863      to avoid negative values in shallow regions.
1864      - updated verification/natl_box/results/output.txt
1865      - updated verification/lab_sea/results/output.txt
1866    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1867    o Added useSingleCpuIO option (see PARAMS.h).
1868    o Updated useSingleCpuIO option in mdsio_writefield.F to
1869      work with multi-field files, e.g., for single-file pickup.
1870    o pkg/seaice:
1871      - bug fix in growth.F: QNET for no shortwave case
1872      - added HeffFile for specifying initial sea-ice thickness
1873      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1874    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1875      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1876    o pkg/seaice:
1877      - adjoint-friendly modifications
1878      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1879    
1880    checkpoint48e_post
1881    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1882    o dynamics: change definition of computational domain & adapt mom_fluxform
1883      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1884    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1885        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1886        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1887        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1888        inverted_barometer solid-body.cs-32x32x1
1889      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1890    
1891    checkpoint48d_post
1892    o in preparation for r*:
1893     a) use pre-computed gradient of hydrostatic potential:
1894        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1895     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1896        => affects results of glob_oce_pressure (different truncation error)  
1897      update output.txt of ideal_2D_oce & global_ocean_pressure
1898    
1899    checkpoint48d_pre
1900    o in preparation for r*:
1901      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1902      pass the 2 comp. of the grad. as arguments to momentum S/R.
1903      but for the moment, only used if it does not change the results.
1904    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1905    
1906    checkpoint48c_post
1907    Modifications in treatment of initial flux forcing controls
1908    to avoid extra storing of flux fields.
1909    
1910    checkpoint48c_pre
1911    o Added tidal_basin_2d experiment (currently 1D!)
1912    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1913    
1914    checkpoint48b_post
1915    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1916     (modification to pressure gradient not yet implemented)
1917    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1918      (for U & V) that are used for vertical advection of momentum.
1919    
1920    checkpoint48a_post
1921    o In preparation for r*, use temp. array to compute vertical transport
1922       in flux-form momentum pkg. => change results of few test-exp.
1923      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1924                        lab_sea, natl_box & plume_on_slope
1925    
1926    checkpoint48
1927    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1928    
1929    checkpoint47j_post
1930    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1931    o moved adexch from forward_step to addummy_in_stepping
1932    o added exch in ctrl_map_...
1933    o aveFreq.=0. at end of cost_final to avoid overwrite in
1934      reverse checkpointing loop
1935    o Yet more changes in gmredi:
1936      * adgmredi_calc_tensor
1937        avoiding all recomputation of gmredi_slope_limit
1938      * adgmredi_x/y/rtransport
1939        added flag for excessive storing to avoid recomp. of
1940        u/v/rtans, dTdx/y/z
1941        -> this is not really necessary and very memory-consuming
1942      * adgmredi_slope_psi:
1943        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1944      * gmredi_slope_limit
1945        re-activated full calculation of taperfct for case 'ac02'
1946    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1947    
1948    checkpoint47i_post
1949    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1950    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1951      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1952    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1953    o gmredi: fix few bugs.
1954    
1955    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1956    This will be a good checkpoint to plug into the ecco-branch.
1957    o few modif.'s to get latest version adjointed
1958      (mainly kick out code in ini_linear_phisurf)
1959    o modif's to run adjoint with exactConserv
1960    o case GM_BOLUS_ADVEC should be cleaned
1961      S/R gmredi_slope_psi should be cleaned
1962    o verification/carbon now has exactConserv=.TRUE.
1963    
1964    checkpoint47g_post
1965    o time-average AIM output: becomes independent from statvars time-average
1966      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1967    o After TAF bug fix:
1968      Tested adjoint of gmredi package.
1969      Tests were done with checkpoint47 rather than with latest
1970      checkpoint47f_post since the latter is broken for the adjoint
1971      verification/carbon/ contains both ADM and TLM gradient checks.
1972    Here they are, before they get changed/lost/stolen.
1973    Mostly modif.'s to fix numerical sensitivities.
1974    Gradient checks OK for
1975    - GM_taper_scheme:
1976      * clipping
1977      * ac02
1978      * linear
1979      * glw91
1980      * dm95
1981      * ldd97
1982    - GMREDI_OPTIONS:
1983      * GM_VISBECK_VARIABLE_K
1984      * GM_NON_UNITY_DIAGONAL
1985      * GM_EXTRA_DIAGONAL
1986      * GM_BOLUS_ADVEC
1987    in conjunction with data.gmredi parameters to be checked in
1988    in a few minutes under verification/carbon/code/
1989    
1990    checkpoint47f_post
1991    Merging from release1_p10:
1992    o modifications for using pkg/exf with pkg/seaice
1993      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1994        and SEAICE_EXTERNAL_FLUXES
1995      - pkg/exf CPP options EXF_READ_EVAP and
1996        EXF_NO_BULK_COMPUTATIONS
1997      - usage examples are Experiments 8 and 9 in
1998        verification/lab_sea/README
1999      - verification/lab_sea default experiment now uses
2000        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2001    
2002    checkpoint47e_post
2003    o created a tag prior to creating a branch
2004    
2005    checkpoint47d_post
2006    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2007      at the bottom boundary had an erroneous half slip boundary condition
2008    o added bottom drag and no slip boundary condition capabilities to
2009      oceanic pressure coordinates code
2010    o added new verification experiment global_ocean_pressure, this experiment is
2011      also described in the tutorial section of the manual
2012    checkpoint47d_pre
2013    
2014    checkpoint47c_post
2015    o Added a verification experiment for a global cubed-sphere ocean run
2016      -  verification/global_ocean.cubed32x32x30
2017      -  uses pkg/therm_seaice and pkg/bulk_forcing
2018    
2019    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2020    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2021      when using P-coordinate; only implemented for atmospheric config.
2022    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2023      NOTES: requires option NONLIN_FRSURF to be "#define".
2024    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2025    
2026    checkpoint47b_post
2027    Merging from release1_p9:
2028    o pkg/seaice
2029      - removed GOTO's and added taf directives
2030      - double precision constants to reduce the g77 (Linux)
2031        to F77 (SGI) differences reported in release1_p8
2032    o tools/genmake
2033      - added SGI options
2034    o verification/testscript
2035      - updated to that of checkpoint47a_post
2036    o verification/global_ocean.90x40x15/input/eedata
2037      - modified for SGI f77 compatibility
2038    o verification/lab_sea
2039      - added description of sea-ice model
2040      - added missing matlab routines
2041      - added test of thermodynamics parallelization
2042    
2043    checkpoint47a_post
2044    o new pkg: aim_v23
2045     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2046       for now, keep the same surface forcing as before.
2047     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2048     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2049     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2050    o add diagnostic of surface correction term in monitor output
2051    
2052    o bulk_force and therm_seaice
2053    - Two packages:  bulk_force (Bulk forcing)
2054      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2055    - Earlier integration from Stephaine Dutkiewicz
2056      and Patrick Heimbach.
2057    - Two ifdef statements for compile time,
2058       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2059    
2060    checkpoint47
2061    differentiable version of checkpoint46n_post
2062    o bug fix in quasihydrostaticterms
2063    o * "clean" adjoint code (in terms of extensive recomputations)
2064        can now be obtained for all GMREDI options (i.e. for
2065        - GM_VISBECK_VARIABLE_K
2066        - GM_NON_UNITY_DIAGONAL
2067        - GM_EXTRA_DIAGONAL
2068        - GM_BOLUS_ADVEC )
2069      * However, wrong gradient check problem remains unsolved.
2070      * New CPP options have been introduced for different
2071        tapering schemes
2072    o external_fields_load now part of differentiation list
2073    o pressure needs multiple storing;
2074      would be nice to have store_pressure at beginning or
2075      end of forward_step, e.g. by having phiHyd global (5-dim.)
2076      (NB: pressure is needed for certain cases in find_rho,
2077      which is also invoked through convective_adjustment).
2078    o recomputations in find_rho for cases
2079     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2080    o #define ATMOSPHERIC_LOADING should be differentiable
2081    o ini_forcing shifted to begining of initialise_varia
2082    o Incorporating QNVS line search routines into MITgcm
2083      (this is separate code, and therefore not under pkg)
2084      lsopt/, optim/
2085    o Updated verification/carbon/
2086      - #define GM_VISBECK_VARIABLE_K
2087      - GM_taper_scheme    = 'ldd97'    
2088    
2089    checkpoint46n_post
2090    Merging from release1_p8:
2091    o verification/natl_box:
2092      updating new external_fields_load routine
2093    o New package: pkg/seaice
2094      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2095      The sea-ice code is based on Hibler (1979-1980).
2096      Two sea-ice dynamic solvers, ADI and LSR, are included.
2097      In addition to computing prognostic sea-ice variables and diagnosing
2098      the forcing/external data fields that drive the ocean model,
2099      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2100      The implied surface heat flux is then stored in variable
2101      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2102      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2103      non-local transport term.  Because this call precedes model
2104      thermodynamics, temperature under sea-ice may not be "exactly" at
2105      the freezing point by the time theta is dumped or time-averaged.
2106      N.B.: fairly large differences in accuracy occur across
2107            different platforms/compilers; comparison between
2108            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2109            generated output gives:
2110       T           S           U           V
2111      C D M    c        m  s        m  s        m  s        m  s
2112      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2113      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2114      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2115    
2116      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2117    o GAD:
2118      - generated new common blocks to account for call of
2119        same gad routines with differing traceridentities
2120        (needed to modify tracerIdentity indices in GAD.h)
2121      - generated separate common blocks for case useCubedSphereExchange
2122        (Department of Futurology)
2123      - parameter lists to gmredi_?transport: added tracerIdentity
2124      - added new key indices to tamc.h
2125    o external_fields_load:
2126      - added this routine to TAF list
2127      - needed to make some common blocks global and additional storing
2128        along the same lines as exf package (checkpoint_lev?_directives.h)
2129    o exf:
2130      updated external forcing package
2131      - bug fixes carried over from ecco-branch
2132        (missing OBCS_OPTIONS.h in two routines)
2133      - enable easy to use "no forcing".
2134      - added exf I/O for atmospheric loading
2135      - added exf I/O for runoff data
2136      - transfered scaling between exf <-> MITgcm to exf namelist
2137    o Adding new verification experiment global_with_exf.
2138      This verification experiment is almost identical to the
2139      global_ocean.90x40x15 experiment, except that it uses
2140      the exf (and cal) package instead of the
2141      external_fields_load routine (cf README file).
2142    
2143    checkpoint46m_post
2144    o modified testscript to return -- when there are no lines of "%MON" output
2145    o added new flag "quasiHydrostatic" for QH mode
2146      and new routine quasihydrostaticterms()
2147    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2148      New routine: mom_u_coriolis_nh()
2149    o fixed sign of non-hydrostatic metric terms in u and v equations.
2150      Depend on correct sign of gravitySign.
2151    o added work.pc* to .cvsignore in aim directories using ifc
2152    o introduced flag for controllin non-hydrostatic metric terms
2153    o removed gravitySign from PARM04
2154    o switched to g77/ifc from pgf77 in aim experiments
2155    
2156    checkpoint46l_post
2157    o made convective adjustment work with pressure coordinates:
2158     - changed the direction of k-loop in convective_adjustment.F for the
2159       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2160     - adjusted the reference pressure k-index in convective_adjustment.F
2161     - adjusted the convection condition in convect.F (in analogy to
2162       calc_ivdc.F)
2163     - convective_adjustment no longer computes anything on the halos
2164     - removed the warnings about negative salinity from find_rho.F and
2165       find_alpha.F; instead the new routine look_for_neg_salinity, called
2166       at the beginning of find_rho, find_alpha, and find_beta, does a
2167       check of the entire slice, if CPP-option
2168       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2169    checkpoint46l_pre
2170    
2171    checkpoint46k_post
2172    o fixed the verification/global_ocean.90x40x15 experiment:
2173     - new bathymetry (the world according to A., JMC, and M.)
2174     - new initial fields and forcing fields (*.bin files)
2175     - new POLY3.COEFFS (for the next release one should switch to a full
2176       equation of state: JMD95P or MDJWF)
2177     - fixed several errors and redundancies in the data file
2178     - experiment uses looped cells
2179     - added matlab directory with diagnostic scripts for plotting of output
2180    
2181    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2182     - read AIM physics parameters from a file (data.aimphys)
2183     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2184    
2185    checkpoint46j_post
2186    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2187    o move wVel computation at the end of the time step, in S/R integr_continuity
2188    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2189    o update timeave pkg for wVel diagnostic.
2190    checkpoint46j_pre
2191    
2192    checkpoint46i_post
2193    o Clean up AIM package (and keep the results unchanged):
2194      include CPP_OPTION and use IMPLICT NONE in all routines ;
2195      declare all the variables _RL ; use _d 0 for all numerical constants.
2196      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2197    
2198    checkpoint46h_post
2199    o cleaned up the use of rhoNil and rhoConst.
2200      - rhoNil should only appear in the LINEAR equation of state, everywhere
2201        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2202        and the dynamical equations are all divided by rhoConst
2203    o introduced new parameter rhoConstFresh, a reference density of fresh
2204      water, to remove the fresh water flux's dependence on rhoNil. The default
2205      value is 999.8 kg/m^3
2206    o cleanup up external_forcing.F and external_forcing_surf.F
2207      - can now be used by both OCEANIC and OCEANICP
2208    checkpoint46h_pre
2209    
2210     Added code to convert surface volume flux (fresh water) into
2211     a mass flux when using P coordinates in the ocean (OCEANICP).
2212     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2213    
2214    checkpoint46g_post
2215    o Include a new diagnostic variable phiHydLow for the ocean model
2216      - in z-coordinates, it is the bottom pressure anomaly
2217      - in p-coordinates, it is the sea surface elevation
2218      - in both cases, these variable have global drift, reflecting the mass
2219        drift in z-coordinates and the volume drift in p-coordinates
2220      - included time averaging for phiHydLow, be aware of the drift!
2221    o depth-dependent computation of Bo_surf for pressure coordinates
2222      in the ocean (buoyancyRelation='OCEANICP')
2223      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2224        Theta, Salinity, and Pressure in the parameter list. This routine is
2225        presently contained in find_rho.F. This routine does not give the
2226        correct density for 'POLY3', which would be a z-dependent reference
2227        density.
2228    o cleaned up find_rho
2229      - removed obsolete 'eqn' from the parameter list.
2230    o added two new verification experiments: gop and goz
2231      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2232    checkpoint46g_pre
2233    
2234    checkpoint46f_post
2235    o Enable tangent linear (forward mode) gradient checks:
2236      - extended active file handling to g_... files
2237      - added TANGENT_SIMULATION to theSimulationMode
2238      - extended grdchk package accordingly
2239    o added tangent linear setup in verification/carbon/code_ftl
2240    o added adjoint setup in verification/front_relax/code_ad
2241    
2242    checkpoint46e_post
2243    o Added new equation of state -> MDJWF
2244      - EOS of McDougall et al., 2002, JAOT, submitted
2245      - caveat: the equation of state is only valid for a smaller (more
2246        realistic?) range of values than JMD95P/Z and UNESCO
2247      - added masks to the calculation of pressure in store_pressure
2248      - added more check values for density in check_eos (ini_eos.F), some of
2249        the old check values are out of the range of the MDJWF-eos, so don't
2250        expect perfect matches for those
2251    checkpoint46e_pre
2252    
2253    checkpoint46d_post
2254    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2255      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2256      case of pressure coordinates. eosType='JMD95Z' in
2257      combination with buoyancyRelation='OCEANICP' now causes an error.
2258    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2259      in find_alpha/beta.
2260    checkpoint46d_pre
2261    
2262    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2263      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2264    
2265    checkpoint46c_post
2266    o Changes necessary for ocean in p-coordinates
2267     -  Added new buoyancy relation = 'OCEANICP'
2268     -  Added new parameters = gravitySign (this used to be contained inside
2269        the factor dRdZ which I added when we first switched to R coordinates).
2270     X GM/Redi is not compatible (yet)
2271     X bottom drag and no-slip need to be debugged.
2272    checkpoint46c_pre
2273    
2274    checkpoint46b_post
2275    o Added new equation of state -> JMD95Z and JMD95P
2276      - EOS of Jackett and McDougall, 1995, JAOT
2277      - moved all EOS parameters into EOS.h
2278      - new routines ini_eos.F, store_pressure.F
2279    o Added UNESCO EOS, but not recommended because it requires
2280      in-situ temperature (see JMD95)
2281    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2282      unesco.f to be used with POLY3
2283    checkpoint46b_pre
2284    
2285    checkpoint46a_post
2286    o Added (atmospheric) pressure loading
2287      - new field in FFIELDS.h, etc...
2288      - new cpp flag ATMOSPHERIC_LOADING
2289    o Changed hFacC to _hFacC in calc_phi_hyd.F
2290    o Added SHORTWAVE_HEATING to some files for consistency
2291    checkpoint46a_pre
2292    
2293    checkpoint46
2294    further merges from release1_p5
2295    o new ctrl package
2296      - adopted from ECCO environment to enable optimization
2297      - added Eliassen Palm fluxes to controls
2298    o added Eliassen Palm flux controls to gradient check package
2299    o cost package
2300      - Compatible with new ctrl package
2301      - added Eliassen Palm cost hooks
2302      - modif's of existing cost functions
2303    o Adjoint-related bug fixes in kpp:
2304      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2305      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2306    o autodiff package
2307      - flow directives:
2308        + new for S/R do_the_model_io
2309        + enhanced for S/R checkpoint
2310        + new gmredi.flow
2311      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2312        disable adcommon.h/g_common.h by default.
2313      - fixed problem for adjoint of global_max
2314    o modified verification/carbon/
2315    o New setup for adjoint of global_ocean
2316    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2317    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2318    o incorporated hooks for sponge layer code (external_forcing.F)
2319    
2320    checkpoint45d_post
2321    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2322    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2323      (affects plume_on_slope "cg2d" output)
2324    o add new parameter deltaTfreesurf for free-surface time stepping
2325    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2326  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2327  o change phiMin in exp1 (to agree with documentation)  o change phiMin in exp1 (to agree with documentation)
2328  o add new flags:  o add new flags:

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