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revision 1.121 by heimbach, Tue Jan 21 19:44:45 2003 UTC revision 1.642 by gforget, Wed Mar 29 22:11:08 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    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
7      if the control period (xx_hfluxperiod etc) is 0
8    o in profiles pkg, clean routines and fix details
9    o in ecco pkg, reading ssh data:
10      fix problem in case the model does not start at iter0=0
11    o fix mnc-pickup/restart for ptracers
12    o new package prifiles:
13      code to compute profile-based cost by Gael Forget
14      (modifs in ecco, ctrl, autodiff)
15    o Benign bug fix in initialization (spotted by M. Mazloff) of
16      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
17    
18    checkpoint58c_post
19    o adjoint: finish NLFS adjoint and provide reference output in
20      verification/global_ocean.90x40x15/results_ad_nlfs
21    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
22      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
23      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
24      with SEAICE_CGRID defined.
25    o move calendarDumps from "data" to "data.cal" and clean-up the code
26      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
27    o add useEXF & useCAL flags (for now, set in hard-coded way)
28    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
29      (were missing in NH mode, and wrong in quasihydrostatic mode).
30      waiting for Chris updated version of calc_gw to add those CALLs.
31    o fix bug in quasihydrostatic S/R ;
32      add a test for this option: global_ocean.90x40x15.qshyd
33    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
34      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
35    o add on/off flag useOffLine for package OFFLINE
36    o seaice:
37      - modify advection so that it works also on the C-grid
38      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
39        problem in multi-tile runs with C-grid
40      - add flags for clipping ice velocities and/or masking solver forcing
41      - fix drag (ocean on ice) formulation and a bug that caused noise in the
42        C-grid solver
43      - added a few comments to seaice_diffusion.F
44      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
45        are now exclusive)
46      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
47        required re-ordering the code a little:
48       + make DAIRN global variable (defined in SEAICE)
49       + move computation of the viscosities eta and zeta into a new separate
50         routine (because I need to recompute them in seaice_ocean_stress.F)
51    
52    checkpoint58b_post
53    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
54      update output.txt of exp. aim.5l_cs.thSI
55    o various mnc cleanups and improvements:
56      + shrink lookup tables by factor of ~4
57      + better error reporting when running out of lookup space
58      + able to handle longer path/file names (up to 500 chars)
59    o adjoint:
60      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
61      - TBD: "hidden" mom_vecinv recomp. in dynamics
62    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
63     (allow to differentiate between forcing components using new integer flags:
64      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
65     and add new flag to put Dissipation tendency out of Adams-Bashforth.
66    o ecco
67      - enable trend removal from SSH anomaly obs.
68    o adjoint
69      - a fix for PmEpR when #undef EXACT_CONSERV
70      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
71      - try to fix "hidden" recomp. in forward_step for NLFS
72        (NLFS seems broken sometimes after I checked it in)
73    o seaice:
74     - add c-grid version of the dynamic solver:
75       + three new routines that are the c-grid substitute lsr, dynsolver
76         and ostres
77       + put a few fields that were local to dynsolver into global common
78         blocks, so that I can move the computation of stresses etc into
79         seaice_lsr (saves coding but may break the adjoint).
80     - replace more hardwired parameters by runtime parameters
81     - add ice masks that mask the rhs of the implicit solvers where there
82       is no ice (commented out in seaice_dynsolver, because i am not sure
83       if this works properly), eventually this should replace the clipping
84       of ice velocities in seaice_dynsolver to +/-40cm/s.
85    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
86      include it only where its needed
87    o move balancing of fluxes before the call of external_forcing_surf
88    o seaice:
89      - correct units of turning angles (now they are really in degrees)
90      - move computation of GWATX/Y out of main routine into dynsolver
91      - initialize GWATX/Y in seaice_init
92    o Apply mask on Fresh-Water flux (needed for SSH forcing).
93      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
94    o seaice: add runtime flags for turning angles (default to zero)
95    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
96      and trend from exf forcing and ctrl control adjustments
97    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
98      (since checkpoint57x_post)
99    o change the default rotation period to 86164.s = the Earth rotation
100    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
101      and based on a reference stratification. Tested within hs94.cs-32x32x5.
102    o seaice advection: add code for choosing between the default (2nd order
103      central differences) and multiDim advection schemes provided by
104      pkg/generic_advdiff
105    o seaice:
106      - removed all references to SEAICE_GRID.h fields from
107        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
108        (cubed-sphere configuration will change a little)
109      - grid computations in seaice_init are obsolete now.
110      - cleaned up code a little so that is easier to read (hopefully).
111      - added new (better?) discretizations of default advection and diffusion
112        (turn on with SEAICEuseFluxForm)
113      - replace 1 in 3d global fields by kSurface in growth.F
114      
115    checkpoint58a_post
116    o seaice:
117      - bug fix in advect.F
118    o shelfice:
119      - separate shelfice load anomaly from pload (breaks with time
120        dependent forcing), => introduce constant field shelficeLoadAnomaly.
121        Its default is 0., but it may be computed more cleverly from (unknown)
122        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
123        done offline. A good approximation of the pressure load anomaly is
124        necessary to avoid large initial adjustment processes underneath
125        deep-reaching shelfice.
126      - small fix in ISOMIP shelfice_thermodynamics
127      - add more sophisticated thermodynamics of Hellmer (1989), this is
128        now the default
129      - give a few constants more intuitive names
130    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
131      if bulk formulae are used in long integration (especially EmPmR). Turn
132      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
133      if balancePrintMean, the imbalance that is substracted is printed to
134      STDOUT.
135    o fix bug (typo) in obcs_apply_eta.F
136    o add a new package shelfice which enables us to model the circulation
137      underneath shelf-ice with draughts of hundreds of meters.
138     - works
139     - to do: + include improved thermodynamics
140              + check whether kSurfC (from model/inc/SURFACE.h) can be used
141                instead of new field kTopC
142              + can we use topoFile, Ro_surf and existing code in ini_depth.F
143                instead of new field R_shelfIce and new code in ini_depth.F
144                and ini_mask_etc.F?
145              + adjust vertical mixing schemes?
146    o seaice pkg:
147     - add a cpp-flag to include a simple formula for a salinity dependent
148       freezing point of sea water at the surface
149     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
150       meridional stresses are now different (and hopefully correct)
151    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
152       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
153       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
154    o pkg/diagnostics: add options and parameters for regional-statistics
155       diagnostics ; define regions by reading a region-mask from a file
156       (might add other options later)
157    o pkg/bulk_force:
158     - add option and parameters to use AIM surface-flux formulae.
159     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
160       others forcing fields (defined in PARM05, parameter file "data") are loaded
161       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
162     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
163     - use the right EXCH call for uwind,vwind (to work on CS-grid).
164     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
165       and parameters (note: calcWindStress replaces .NOT.readwindstress).
166     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
167    
168    checkpoint58
169    o add "--embed-source" option to genmake2 which, when the supporting
170      tools can be compiled (as determined by genmake2) will turn on the
171      embed_files package which then embeds the entire MITgcm source code
172      (*.[fFhc] + Makefile) used for the build within the executable
173      - requested by CNH but off by default
174      - adds a paltry <9MB to the mitgcmuv executable in most cases
175      - only writes the output when useEMBEDSRC in eedata is true
176    o clean up 3-dim. relaxation codes:
177      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
178      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
179      * Thanks to Tom Haine for testing!
180    
181    checkpoint57z_post
182    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
183      affects output (@ truncation level) of exp. plume_on_slope ; updated.
184    o fix the pickup behavior for obcs in combination with ptracers
185    o fix a bug in ptracers_external_fields_load
186    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
187      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
188    o transfered surface NH pressure to eta field (if exactConserv).
189    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
190         and update lab_sea output.txt file.
191    o completing 3-dim. relaxation code: additional term
192         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
193      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
194      * At compile time, in "EXF_OPTIONS.h" set
195          #define  ALLOW_CLIMTEMP_RELAXATION
196          #define  ALLOW_CLIMSALT_RELAXATION
197      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
198          tauThetaClimRelax3Dim = 15552000.0,
199          tauSaltClimRelax3Dim  = 15552000.0,
200      * 3 cases:
201          1) Use a constant-in-time 3-dim. field
202          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
203          3) Real-time relax. to time-evolving prescribed field
204    o Adding Laplacian-type smoothness constraint on
205      initial and boundary (forcing) controls (ic, bc)
206      * enable at compile-time via
207        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
208      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
209      * Absolute scale somewhat unclear so far
210      * no area weighting was included since no other cost term does so far
211    
212    checkpoint57y_post
213    First step for a NLFS adjoint
214    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
215    o new init. routines for calc_r_star, calc_surf_dr
216    o still need to deal with ini_masks_etc
217    o testreport seemed happy
218    checkpoint57y_pre
219    
220    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
221    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
222    o add new offset feature to offline pkg (plus minor cleanup)
223    o cfc fixes for final year of integration
224    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
225      be in GCHEM_OPTIONS).
226    
227    checkpoint57x_post
228    o fix testreport Pb in multiple test experiment.
229    o cleanup our namelist syntax in verification:
230      - make it more F95 standards compliant (some work still needed)
231      - allows the vast majority of our tests to work with gfortran
232    o Non-Hydrostatic:
233     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
234     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
235    o Allow to apply AB on T,S rather than on AB(gT,gS):
236     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
237     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
238       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
239     - need a "clever" read_pickup to restart from the other AB formulation
240    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
241    o remove some unused variables (reduces number of compiler warnings)
242    o adjoint
243      * Disable useVariableViscosity for adjoint for time being
244        (there are a number of extensive recomputations)
245      * Initialize certain variables needed for adjoint
246    
247    checkpoint57w_post
248    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
249                 fix the singleCpuIO RS version of MDSWRITEFIELD
250       and add a WARNING if using globalFiles=T with multi-processors.
251    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
252      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
253    o tracer advection scheme:
254      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
255       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
256       was not very convenient).
257      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
258       (further tests needed for the implicit DST & Flux-Limiter schemes).
259    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
260      and sRef for convenience, handy, when you want to initialize
261      ptracers in a large domain with a constant non-zero value. Also,
262      untangle ptracers_init.F a little.
263    
264    checkpoint57v_post
265    o change dome exp. to use variable viscosity in side-drag terms.
266    o remove all the files from the cfc_offline test since they are now
267      incorporated into tutorial_cfc_offline which has been producing
268      identical results for a few days of testing
269    o add new parameter: sideDragFactor to enable half-slip-side BC
270      and change side-drag S/R to use viscosity from mom_calc_visc
271      (can switch back by setting sideDragFactor=0.); affects results at
272      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
273       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
274    o vorticity & strain are now computed without masking, to account for
275      no-slip-side BC in variable viscosity calculation ; mask is applied
276      anyway later on, before computing advection/coriolis terms.
277    o modify exp4 to test new obcs support for reading from external files
278      and for passive tracers
279    o fix behavior of ptracers_monitor when monitor output is written to a
280      netcdf-file; still not independent of monitor.F (writes in the same
281      file).
282    o change default value of tRef (put a uniform, meaningful value for ocean
283      & atmos) and initialize sRef (was missing, as Martin mentioned).
284    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
285      to be proportional to enstrophy dissipation length.  Thus,
286       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
287      This is now consistent with Smagorinsky and with the manual.
288    
289    checkpoint57u_post
290    o OBCS and PTRACERS: add open boundary support for passive tracers
291      - either use homogenous (pseudo) v.Neumann conditions or prescribe
292        OB-values from file; this is not different from the way theta and salinity
293        are treated
294      - however, Orlanski-radiation conditions are not supported, and the model
295        will stop if you use pTracers and Orlanski at the same time.
296      - beefed up the rountine obcs_external_fields_load: now only those open
297        boundary values are overwritten with values from files for which there
298        are really files, otherwise the OB-fields remain untouched. This makes
299        it possible to use different OBs at different ends of the domain (as
300        with EXF)
301    o reduce number of exch calls in shap_filt (s2).
302    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
303      truncation level) 4/5 MLAdjust test results (11&12 digits match).
304    
305    checkpoint57t_post
306    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
307    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
308      same truncation, independent of the face number: affects affects several
309      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
310    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
311      note that biharmonic viscosity + no-slip was not tested in any experiment.
312    o fix bug in non-linear free-surf side-drag ; generate new output for
313      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
314    o make mnc honor the writeBinaryPrec flag for most kinds of output
315    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
316    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
317      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
318    o add brackets in multi-terms sum to get same truncation, independent of
319      the face number (manage to get exactly same value of gU,gV at the cs-edge)
320      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
321    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
322      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
323      a maximum grid-scale Reynolds number.  Also, changes all length calculations
324      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
325      Suggested values of viscosity parameters found in mom_calc_visc.
326      Many new viscosity diagnostics available.
327    
328    checkpoint57s_post
329    o Add clearing-house for viscosity calculations, mom_calc_visc and
330      correct numerous bugs in LeithD and Smagorinsky discretizations.  
331      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
332      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
333      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
334      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
335      The Strain-Tension form is now called with useStrainTensonVisc=.true.
336      ViscAhStrain and viscAhTension are now retired.
337    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
338    o In response to JMC's bug report, genmake2 now ignores any soft-links
339      that it finds in the *current* directory when searching for files.
340      Soft-links found in any other source directories will still work as
341      they did before.
342    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
343      a C routine to unlimit the stack size
344    o mnc-ify pkg/aim snapshot vars
345    o mnc-ify pkg/land as requested by Daniel
346    o various changes to mnc including:
347      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
348      - output can now be grouped so that all files within a group
349          change the ITER portion of their names in lock-step together
350      - can now read ("global") PER-FACE (in addition to PER-TILE) files
351          and works with both EXCH1 and EXCH2 (but needs more testing)
352      - writing works for all verification test cases w/ g77 on Linux
353    
354    checkpoint57r_post
355    o make MNC variable initialization happen earlier
356    o add diagnostics for (almost) each term of the momentum Eq.
357    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
358    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
359    o remove MINIMAL_TAVE_OUTPUT option ;
360      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
361    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
362      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
363    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
364    o add time-dependent SST, SSS control
365    o cost terms in ecco/ modularized (new cost_generic.F)
366    o cost_averages routines are modularized (new cost_averagesgeneric.F)
367    o new infrastructure for seaice model vs. obs misfits in seaice/
368      * driver from the_main_loop.F is seaice_cost_driver.F
369      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
370      * gradient check in Exp. 6a of natl_box_adjoint/
371    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
372      (see README file)
373    
374    checkpoint57q_post
375    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
376    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
377      - bug was reported by Jean-Michel and Ian Fenty
378    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
379      update exp. cpl_aim+ocn output.
380    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
381      Needed for high-res. runs with large global files
382      to be able to limit tapelev size
383    o Changed some tests for adjoint:
384      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
385      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
386      * global_ocean.90x40x15/ back to default 3-level checkpointing
387    o Modifications to enable scripted COMMON to MODULE conversion
388      * verification/OpenAD/code/ has necessary scripts and description;
389      * converts, compiles and runs successfully;
390    
391    checkpoint57p_post
392    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
393    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
394      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
395    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
396    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
397      (was already the case for dissipation with mom_vecinv,
398       and also the case for grad.PhiHyd when staggered-timeStep)
399      This will allow to put dissipation out-off the AB time-stepping.
400     Unfortunately, affects truncation error. Update output of exp. that "fails"
401      (cg2d matching number) and leave the others for later: front_relax(10),
402      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
403      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
404    
405    checkpoint57o_post
406    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
407      (2) its ready to be documented during the 20050801 DocFest
408    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
409      for ideal_2D_oce and lab_sea on linux_ia32_g77
410    o set to #undef CTRL_SET_OLD_MAXCVARS_30
411      in global1x1_tot/code_seaice_adj to access indices 32, 33
412      (worth another tag)
413    
414    checkpoint57n_post
415    o adding precip control xx_precip 32
416    o adding swflux control xx_swflux 33
417    o Replacing 10 forcing penalty cost routines by 1 generic.
418    o Implementing partitioning in time-mean and variable adjustment
419      for atmos. state.
420    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
421    o in natl_box_adjoint:
422      * updated exp 1 to 10
423        (but does not have time-mean vs. variable split results yet)
424    o updated global1x1/*_seaice_adj/
425      to incorporate latest changes
426    o enable useSingleCpuIO for mdsio vector routines
427      (applies in particular to tapelev I/O)
428    o removed inefficient K-loop in all active_file*control*.F
429    
430    checkpoint57m_post
431    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
432      and advect_cs (use EXCH-2 and standard cs-32 grid files).
433    o pkg/exch2: filling of face-corner halo regions is optional
434      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
435    
436    checkpoint57l_post
437     tag before updating tutorials (pre-release-2)
438    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
439       for output and interpolation of input fields onto model grid)
440    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
441       Affects results of exp. rotating_tank ; update output.txt.
442    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
443          and taking the square quantity and/or using a fraction-weight field.
444    o fix aim_diagnostics_init.F mate numbers.
445    o add mnc output capability to diagnostics/diagstat and update
446      our cvsignore files for the ACSII output generated
447    
448    checkpoint57k_post
449    o lab_sea now uses diagnostics package and provides a suite of
450      new EXF diagnostics output.
451    
452    checkpoint57j_post
453    o exf
454      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
455        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
456        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
457      * extended diagnostics output
458        - now includes all EXF variables
459        - hs, hl moved to common block
460        - separate S/R for diagnostics, called after ctrl vector is added
461        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
462        - EXFqnet contains true Qnet (i.e. includes qsw)
463      * updated verif. lab_sea, global_with_exf
464      * Rearranging hflux (exf_mapfields -> exf_getforcing)
465        to ensure that diagnostics sees a true EXFqnet
466    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
467    o diagnostics pkg: change pointers so that 1 diagnostic can be used
468      several times with different frequencies.
469    o mnc-ify the thsice package as requested by Daniel Enderton
470      - the monitor--MNC output needs work
471      - many attributes need to be added (most are currently blank)
472    o mnc-ify theaim_v23 package as requested by Daniel Enderton
473      - many attributes need to be added (most are currently blank)
474    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
475    o add Sadourny like discretization to the 4th.O vorticity advection scheme
476    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
477      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
478         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
479    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
480     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
481    
482    checkpoint57i_post
483    o Diagnostics package was changed: diagnostic allocation is now deactivated
484      by setting an empty file name in the namelist (used to be by setting 0 frequency)
485    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
486      add 1rst Order upwind vertical Shear.
487    o add a quick fix for A/B checkpointing in OFFLINE mode
488    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
489      end-run around the C/Fortran linking horror in eesup/src/timers.F
490    o added pkg/runclock: allows user to terminate run based on wall clock
491    o added non-hydrostatic scaling parameter: nh_am2
492    o pkg/my82: futile attempt to make results compiler-independent by adding
493      some "_d 0", etc. no effect.
494    o for mnc output, fill the 'T' coordinate var with myTime and create a
495      separate 'iter' variable for iteration count
496    o pkg/diagnostics:
497      add new capability: output of Global/Regional & per-level statistics ;
498      tested against monitor output (including land & thSIce) on various exp.
499    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
500    
501    checkpoint57h_done
502      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
503      data.diagnostics, data.gchem, data.ptracers) is done.
504    
505    o pkg/diagnostics: prepare for Global/Regional statistics.
506      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
507    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
508      and rename it: DIFFERENT_MULTIPLE
509    
510    checkpoint57h_post
511    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
512    o pkg/diagnostics: change output frequency, now in seconds (instead
513      of Nb of iterations). This requires to change data.diagnostics.
514    checkpoint57h_pre
515    
516    o in mnc, let the user create the output dir if both mnc_outdir_date
517      and mnc_outdir_num are false
518    o add fflags() to pkg/diagnostics which allows one to specify, on a
519      per-file basis, the file precision [default behavior is unchanged]
520    o added diagnostics to pkg/kpp, including computation of mixed layer
521      depth based on a temperature/density criterion
522    o updated verification/natl_box to test the new pkg/kpp diagnostics
523    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
524    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
525    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
526      not mnc -- this mistake was found by JMC and is now corrected
527    
528    checkpoint57g_post
529    o add Adams-Bashforth 3rd Order time stepping:
530      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
531      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
532    checkpoint57g_pre
533    
534    o make lambda[Theta,Salt]ClimRelax spatially varying
535      (default remains spatially uniform constant based on tau)
536    o added new control variables
537      * init. uVel, vVel, etanN
538      * lambda[Theta,Salt]ClimRelax
539    o separate masks used for ctrl_pack/unpack 'from write_grid' output
540      (suggested by G. Forget)
541    
542    checkpoint57f_post
543    o add parameter "baseTime" = model base time = time at iteration zero
544      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
545      account for baseTime shift
546    o move Coriolis arrays from PARAMS.h to GRID.h
547    checkpoint57f_pre
548    
549    o mnc-ifying the seaice package
550    o introduced an alternative length scale calculation for use in the limiting
551      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
552    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
553    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
554      as well as grad(vort3).  Made it compatible with both approximate form
555      for the cubed sphere and full form of these gradients.  Added flag
556      useFullLeith to select between approximate and full form.  
557    o add "d0" in getcon.F to reduce differences between compilers/platforms
558      update output.txt of exp. fizhi-gridalt-hs
559    o change port_rand funtion to allow to set the seed.
560    o fix obscure MNC bug involving conversion between reals and integers
561      - it caused no problems with certain (eg. gcc, ifc) compilers but the
562        new version is now more standards-compliant
563    o adjoint-related modifications
564      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
565      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
566      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
567    
568    checkpoint57e_post
569    o Adding eddy stress controls a la Ferreira et al.
570    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
571    
572    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
573      update output.txt of exp. fizhi-gridalt-hs
574    o add more "Z" dimensions and associated coordinate vars to MNC
575    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
576    o parameter calendarDumps: when set, approximate months (30-31 days) and years
577      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
578      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
579      months and years.  Requires pkg/cal.
580    o diagnostics: add pickup functionality
581      - off by default for backwards compatibility
582      - current version only uses MDSIO -- MNC will be added
583    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
584    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
585    
586    checkpoint57d_post
587    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
588    o modify verification/ideal_2D_oce so that it tests the creation of mnc
589      output from the diagnostics package
590    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
591    o make genmake2 more portable by using ".$FS" instead of ".f" for more
592      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
593    o add coordinate variables to the MNC output from the diagnostics package
594    o change MNC-flags default value: true when useMNC=TRUE
595    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
596      the ability (off by default) to read the grid information using MNC
597    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
598    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
599    o do snap-shot diagnostics at the middle of the time-interval (instead of
600      at the end).
601    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
602      new test for AIM with thSIce + slab-ocean
603    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
604    o move state variable diagnostics to the beginning of the time step ;
605      (note: still needs some work specially for snap-shot diagnostics)
606      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
607    
608    checkpoint57c_post
609    o Change testing option (-ieee) to get closer agreement between g77 & ifort
610    o generate new output.txt files on faulks with g77 & the new -ieee option
611    checkpoint57c_pre
612    
613    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
614      update output.txt of exp. global_ocean.90x40x15
615    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
616      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
617    o add saltFlux(+File) forcing capability with periodicExternalForcing
618    o allow to use pkg diagnostics for GM-Redi & ThSIce output
619    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
620    o improvements for the MNC output from DIAGNOSTICS:
621      - correct handling of the unlimitied dimension
622      - all dims now have associated coordinate variables
623      - variables located at U, V, and Corner ("Z") points are now written
624        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
625        *all* data points are output
626    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
627    o added pkg/seaice/seaice_monitor.F
628    o mdsio_readfield.F can now read files visible only to master MPI process.
629    o pkg/seaice: some test code for ice-modified ocean stress
630    o exf_getffields interpolation defaults to bilinear for all scalar forcing
631      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
632      spurious negative numbers for precipitation and humidity.  Will cause
633      some small numerical differences for integrations using pkg/exf/exf_interp.F.
634    o pkg/ctrl/
635      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
636        May be enabled via doPackDiag
637      *  introduce z-scaling of
638         + gradient (doZscalePack) and
639         + control (doZscaleUnpack)
640    o pkg/mdsio/
641      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
642      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
643    
644    checkpoint57b_post
645    o simplify options in diagnostics_fill arguments (remove weird combinations)
646    o fix MNC coordinate variables so that they now contain per-face index
647      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
648      general, EXCH2 grids are only aligned to a "local" coordinate system
649    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
650    o Implement instantaneous output within pkg diagnostics:
651      setting a negative frequency in data.diagnostics produces
652     "snap-shot" output (as opposed to time-average if freq > 0)
653    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
654      NOTE: change ptracer diagnostics name: use 2 characters to work with
655            more than 9 tracers. Add also diagnostics of advect & diffus flux.
656    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
657      becomes the coordinate variable for the 'T' dimension
658    o add CF-style coordinate variables to MNC
659      - just a first cut:  numbers are meaningless on the cubesphere and
660        missing along the T axis but otherwise it works!
661    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
662    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
663    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
664      this is based directly on what the model compute, so that the content of
665      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
666    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
667    o clean up build options files for SunOS, in particular
668      - remove -traditional from xmakedepend
669      - change -xarch=v9 to -xarch=native for f77
670      - restore use of make (not gmake)
671      - add CC=gcc if using g77
672    o changes per discussion of AM, JMC, & EH3 today:
673      - move redundant "grid" variables out of "state" -- in preparation of
674        creating proper CF-style coordinate variables and in recognition
675        that any/all grid variables can be easily copied (eg. w/NCO) from
676        the grid files into any of the other NetCDF files
677      - *always* output grid variables with MDSIO (this will eventually be
678        changed)
679      - output MNC grid file if useMNC is true
680    o every instance of _END_MASTER() has been found and replaced with
681      _END_MASTER( myThid ) in order to satisfy certain picky Sun
682      preprocessors
683    o re-arrange diagnostics pkg initialisation:
684     - allow each package to extend the available diagnostics list
685     - add some checking and fix small problems (multi-threaded, ...)
686     - new S/R diagnostics_fill (replace fill_diagnostics):
687       look through the short list of active diag. (instead of the long list)
688       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
689    
690    checkpoint57a_post
691    o this set of changes restores TAMC compatibility
692      tested for global_ocean.90x40x15 adjoint on trough
693      (what a pain)
694    
695    checkpoint57a_pre
696    o some modifs in tools/build_options for sunos
697    o call ctrl_pack for ctrl at end for optimcycle=0
698    
699    checkpoint57
700    o add horizontal bi-harmonic viscosity for vertical velocity
701      - new parameter viscA4W (defaults to viscA4)
702      - affects only non-hydrostatic code
703      - to be done: no-slip lateral boundary conditions
704    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
705    o implement Implicit Vertical advection for pTracers
706    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
707      (implemented also for implicit vertical diffusion & advection)
708    o OBCS: extend application of tracer open boundary conditions
709      to a strip beyond the boundary of width Olx/Oly
710    o add call monitor to TAF set of required calls (flow directives)
711      and include in natl_box_adjoint
712    o untangle a few ifdefs related to cost, ctrl, autodiff
713      untangel a few ALLOW_ECCO_OPTIMIZATION
714    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
715      (theta2, salt2 in ecco_cost_weights)
716    
717    checkpoint56c_post
718    o OBCS as control variables
719      - update ctrl_ad_diff.list, obcs_ad_diff.list
720      - remove balance of obcs controls from default
721      - fix index bug nobcs in ctrl_init
722      - fix dummy fields filen in ctrl_pack
723      - add dummy weights for obcs
724    o lsopt: comment out fort.94 output
725    o optim:
726      - remove unnecessary header files
727      - adjusted namelists
728      - add xerbla.F to Makefile
729    o exf:
730      - multiple modifications of exf_check_range
731      - unit change in exf_init_runoff from [m/year] to [m/s]
732    o mdsio:
733      - i/o-vector change debugLevel from debLevA to debLevB
734    
735    checkpoint56b_post
736    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
737      is called from DO_THE_MODEL_IO
738      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
739      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
740      - clean up PTRACERS_WRITE_TIMEAVE a little
741    o add another verification experiment that tests both the cfc-pkg and
742      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
743      reactive tendencies treated inline with regular timestepping
744    o testreport previously did a lousy job of comparing small numbers, so
745      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
746      implemented in the little c-progam tmp_cmpnum.c which is embedded in
747      testreport.
748    o ptracers_monitor: bug fix for MPI
749    
750    checkpoint56a_post
751    o GCHEM: finish reorganizating the package
752      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
753        (introduces another 3D-array for each passive tracer, but only if
754        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
755        gchemTendency is not needed because the timestep is done separately)
756      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
757      - GCHEM is now---more or less cleanly---separate from PTRACERS
758      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
759        so clear to me how that should be done in a general way.
760    o CFC: improve formatting of output in CFC_ATMOS
761    o PTRACERS:
762      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
763        that ALL experiments with ptracers enable can be checked. This makes
764        GCHEM_MONITOR obsolete.
765      - include a runtime parameter PTRACERS_monitorFreq that defaults to
766        monitorFreq
767      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
768    o add PTRACERS (PTR0[1-5]) to testreport output
769    o exf_check_range:
770      * default changed to .TRUE.
771      * will check values for niter0 if debLevA, every timestep if debLevB
772      * STOP in exf_check_range if 'out of range'
773      * range chosen generous to allow for potential extema
774      TBD: a version with stricter range
775           permitted range would be runtime parameters
776    o GMredi:
777      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
778      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
779      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
780    o GCHEM:
781      - move call to GCHEM_FORCING_SEP, so that it is now called before
782        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
783      - introduced a useGCHEM runtime flag and applied it everywhere.
784      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
785        this flag is now only visible within GCHEM-pkg routines.
786      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
787        be replaced by a 3D array that is computed before thermodynamics; for
788        this, the tracer ID iTracer had to be included into the parameter list
789        of ptracers_forcing
790      - set up forward_step to call gchem_forcing, that will replace
791        gchem_forcing_int in ptracers_forcing
792      - cleaning up
793    o small cleaning of exch2: remove files that are also in eesupp/src
794    
795    checkpoint56
796    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
797    o mnc: cleanup "full" files--fixes out-of-memory problem
798    o ECCO-GODAE
799      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
800      * fully merged and updated from SIO code
801        windstress sign change affects
802        - exf_inscal_[u/v]stress
803        - sign of xx_tau[u/v] adjustments
804        - signs in cost_scat
805      * ctrl_get_gen: avoid update of tau[u/v] for first few days
806      * natl_box_adjoint updated and compressed
807      * 2-level checkpoint switch added
808        (tested in EXP. 1 of natl_box_adjoint)
809      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
810    o SVD
811      * first complete, non-hacked version for SVD calculations
812      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
813        performed via direct access files admtlm_vector.it????
814        (via ctrl_[un]pack)
815      * optimcycle is used for ARPACK iteration counter
816        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
817      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
818        and add linear transforms where necessary
819      * controls are initial/final SST, SSS (can be extended; need to check
820        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
821    o mdsio: filename info to both stderr, stdout
822    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
823      from sign change
824    
825    checkpoint55j_post
826    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
827      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
828    o add consistent build directories and .cvsignore files to verification
829    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
830    o make all subroutines 30 or less characters in length for certain older
831      compilers to work (a thorough search only turns up two routines in
832      pkg/ptracers)
833    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
834      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
835    
836    checkpoint55i_post
837    o change arrays for total vertical diffusivity (2.D if explicit,
838      3.D if implicit) ; each ptracer uses its own background value.
839    o added mnc/NetCDF output capability to ocn_compon_interf
840      - added bits to verification/cpl_aim+ocn so that it can run on
841        ITRDA and other clusters without the mpirun "-wd" option
842    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
843      configuration
844    o give MNC the ability to create additional files rather than
845      exceeding a specified file size limit "MNC_MAX_FILESIZE"
846      - the default is just less than 2GB which is a practical limit
847        on many systems
848    o Compute the non-local term using either KPP vertical diffusivity (=default)
849       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
850    
851    checkpoint55h_post
852    o add verification test "vermix"
853    o remove all the *_ioinc flags and replace with the single global
854      outputTypesInclusive flag
855    o allow to set a vertical profile of vertical diffusivity for T & S
856    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
857    o useMNC moved from data.mnc to data.pkg
858    
859    checkpoint55g_post
860    o Renaming carbon AD experiments to comply with testreport conventions
861    o Updating adjoint of Held-Suarez hs94.1x64x5
862    o Fixing directives for non-ECCO forward_step, after ECCO directives
863      have been fixed to avoid recomp. of do_oceanic_phys
864      Works well for global_ocean.90x40x15,
865      but recomp. issue remains for carbon
866    o Updating adjoint output for natl_box_adjoint after
867      pkg/ecco has been modified (see taga c55d_post)
868    
869    checkpoint55f_post
870    o rename to timeave_init_fixed
871    
872    checkpoint55e_post
873    o some delicate re-shuffle of store directives to avoid one
874      extra call of do_oceanic_physics
875      affects ecco_the_main_loop.F, do_oceanic_physics.F
876      checkpoint_lev1_directives.h
877    o NB: this may break global_ocean adjoint temporarily,
878      but it is clear how to fix it. Will do later, need this now.
879    
880    checkpoint55d_post
881    o ECCO specific cost function terms (up-to-date with 1x1 runs)
882    o ecco_cost_weights is modified to 1x1 runs
883    o modifs to allow observations to be read in as
884      single file or yearly files
885    o enable to read exf forcing fields as either
886      single file or yearly files (flag useExfYearlyFields)
887    checkpoint55d_pre
888    
889    o switch between 2-level and 3-level checkpointing
890    o add ability of MNC to write local and "partial" (eg. 2D slices where
891      the full 3D field is never actually stored) arrays to NetCDF files
892      with the correct (that is, the complete multi-dimensional) set of
893      array indicies
894      - used in mom_vecinv() to write the diagFreq output
895      - tested (demonstrated) in verification/aim.5l_cs
896    o further mnc-ification
897      - add verification/lab_sea to the list with mnc setups
898      - fix undefined mnc v-names in cd_code
899      - add kpp to mnc output (both snapshot and timeave)
900    o non-hydrostatic code
901      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
902        in calc_gw.F
903      - defaults to viscAh
904      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
905        friction or Leith) in non-hydrostatic mode, as long as there is
906        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
907    o pkg/cost
908      extend simple cost functions to treat time mean quantities
909      (T,U,V) via cost_accumulate_state from cost_tile
910    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
911        be 2 times larger than the minimum size the advection scheme requires.
912        now get a perfect conservation of salt in advect_cs test-exp (updated)
913    o GGL90 (Gaspar's TKE mixed layer)
914      - add horizontal diffusion of TKE, requires exchanges in
915        do_fields_blocking_exchanges, horizontal diffusivity is zero by
916        default. In OPA there is no horizontal diffusion of TKE but the
917        mixing coefficients are computed from a horizontal average of TKE of
918        6 points or so. I think that diffusion has a little more physical
919        justification.
920      - clean up ggl90_calc in the hope of reducing memory usage (this hope
921        was in vain)
922      - mask tke-variable in ggl90_init
923    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
924    o fix biharmonic diffusion on CS-grid.
925    o more obcs stuff
926      - added obcs_external_fields_load as an alternative to the EXF-pkg option
927        for reading boundary values. This routine is called from
928        obcs_prescribe_read
929      - updated obcs_check
930      - changed sponge layer relaxation parameter units for days to seconds
931      - turned off sponge layer by default
932      - changed argument list of OBCS_CALC to myTime+deltaTclock
933      - fixed about 35 bugs in obcs_external_fields_load
934    
935    checkpoint55c_post
936    o obcs stuff
937      - new runtime flags useOBCSprescribe, useOBCSbalance
938      - re-arranged obcs_calc
939      - moved exf_getobcs to obcs_prescibe_read
940        obcs_prescibe_read is called after ORLANSKI stuff
941        and independent of it (executable can contain all).
942      - updated obcs_check
943      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
944        These may be necessary only if tangential velocities are
945        prescribed at OB, not sure, needs testing.
946    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
947      which simplifies the calls and passes the ifc check-bounds test
948    
949    checkpoint55b_post
950    o add a 2D scalar, Z location, exchange_2 routine.
951    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
952      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
953      affects advect_cs results (for the wrong reason): update output.txt
954    o use a more standard discretization for biharmonic viscosity ;
955     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
956      affects results of dome set-up: update output.txt
957    o fix gad_advection.F (CubedSphere part), back to version 1.23
958    o fix bug in mom_vi_del2uv.F (CubedSphere part).
959    
960    checkpoint55a_post
961    o merged code to
962      * prescribe/read time-dependent open boundaries
963        (works in conjunction with exf, cal)
964      * sponge layer code for open boundaries
965      * each boundary N/S/E/W now has its own CPP option
966        (healthy for the adjoint)
967    
968    checkpoint55
969    o up-to-date adjoint of previous breaks
970      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
971      - global_ocean_ebm: adjoint still needs fix (TLM ok)
972      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
973      - carbon: * remove tr1-related adjoint verification
974                * add ptracer as control variable
975    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
976      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
977    
978    checkpoint54f_post
979    o in verification/carbin/ remove experiment related to
980      ALLOW_PASSIVE_TRACER (array tr1 etc)
981      code_ad/ input_ad/ results_ad
982    
983    o add two new packages
984      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
985        + subject to optimization (memory)
986      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
987        + subject to reordering (many GOTOs in the original code)
988        + so far opps is called for every (i,j) point, and then operates in
989          the vertical; one may want to reorder the scheme in order operate in
990          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
991          fields)
992    o overhaul of IO so that we now have flags for MDSIO and/or MNC
993      - all verification tests compile and run with linux_ia32_g77
994      - defaults are compatible with current input files--nothing
995        should change if you were not previously using MNC
996      - MNC output has been added in numerous places (eg. timeave)
997        but there are still a few writes not yet do-able with MNC
998        (this is in progress)
999      - flags now allow for either/or/both use of MDSIO and MNC and
1000        documentation will soon follow
1001      - numerous small formatting cleanups for ProTeX
1002    o add version info (via BUILD_INFO.h) to MNC and stdout
1003    
1004    checkpoint54e_post
1005    o add two new packages
1006      - pp81 (Packanowski and Philander, 1981), Richardson number and
1007        stratification dependent mixing
1008      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1009      - these scheme operate in a similar manner as KPP (without ghat, of
1010        course), however there is only one diffusivity that is used for both
1011        temperature and salinity (and passive tracers)ç
1012    o add offline package
1013    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1014      provided by Stephanie Dutkiewicz
1015    o genmake2: add ability to search for C compilers and cleanup test output
1016      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1017    
1018    checkpoint54d_post
1019    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1020    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1021      leading to additional shift by 5 days each year of integration
1022       (i.e. leading to considerable offset over the years)
1023    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1024    o start with no AB and no initial filtering (staggerTimeStep):
1025      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1026    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1027      (external loading & cpl import/export stay in forward_step.F)
1028    o update coupling interface to work with new staggerTimeStep
1029    o change MDSIO ptracers_pickup.
1030    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1031    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1032    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1033    
1034    checkpoint54c_post
1035    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1036      this affects (truncation error) output.txt of test-exp:
1037       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1038    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1039    o change Qnet to always be the net heat flux, (+upward).
1040      affects (truncation error) output of natl_box exp.: updated
1041    o define the max number of passive tracers in PTRACERS_SIZE.h
1042    o start to test mnc routinely in exp0
1043    o add sea-ice loading (sIceLoad) as a new forcing field.
1044    
1045    checkpoint54b_post
1046    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1047       impressive on Altix and Opteron systems)
1048    o diagnostics can now write NetCDF files through the mnc package
1049    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1050    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1051    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1052      affects (truncation error) output of lab_sea & natl_box exp.: updated
1053    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1054    
1055    checkpoint54a_post
1056    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1057    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1058    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1059    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1060      + internal_wave (shift in writing cg2d_ini_res)
1061    checkpoint54a_pre
1062    
1063    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1064      - modified verification/lab_sea and natl_box_adjoint accordingly
1065    
1066    checkpoint54
1067    checkpoint53g_post
1068    o prepare splitting of thermodynamics: store convect.counter in common block
1069    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1070      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1071    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1072    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1073    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1074    o restore adjointability
1075    
1076    checkpoint53f_post
1077    o modifications that affect AIM experiment results (update output.txt):
1078      - no advection of S at top interface Nr (pkg/generic_advdiff)
1079      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1080    o AIM pkg:
1081      - include stability function into surf.Flux derivative relative to Tsurf
1082      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1083    
1084    checkpoint53e_post
1085    o merged cylindrical coord configuration
1086    o added rotating_tank experiment
1087    checkpoint53e_pre
1088    
1089    checkpoint53d_post
1090    o faulks upgraded: re-generate output.txt that have changed:
1091       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1092    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1093    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1094    o added Sadourny discretization of Coriolis
1095      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1096      - re-enabled use of omega3 (useAbsVorticity)
1097    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1098      vector-invariant equations
1099      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1100    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1101      hopefully without new bugs
1102      - still to do: biharmonic friction for non-hydrostatic w
1103    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1104    o regenerated output for global_ocean_ebm (using -ieee)
1105    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1106      of mom_common/
1107      - simple re-arrangement of instructions within computing loop
1108    checkpoint53d_pre
1109    
1110    checkpoint53c_post
1111    o new version of coupler for AIM+thSIce and Ocean models
1112     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1113     - land: change Evaporation of snow
1114     - aim with thSIce: fix bug in snow-precip.
1115    o changes to calc_gw.F
1116     - bug fix for w^2 term near the bottom boundary
1117     - (hopefully) improve the lateral slip boundary condtions for use with
1118        partial/looped cells
1119      - because the bug fix changes two verification experiments anyway (exp5
1120        and plume on slope), change the lateral boundary condition from half slip
1121        to the value of no_slip_sides
1122    o ebm package wasnt quite up to the parallel task. Fixed that.
1123    o Adjoint of EBM package + verification
1124      * TLM OK
1125      * ADM not sufficient accuracy yet (needs further testing)
1126    
1127    checkpoint53b_post
1128    o Commiting new energy balance model to repository
1129      * package is pkg/ebm
1130      * verif. is verification/global_ocean_ebm
1131      * references are in ebm_driver.F
1132    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1133    C        Global thermohaline circulation. Part I:
1134    C        Sensitivity to atmospheric moisture transport.
1135    C        J. Climate 12(1), 71-82
1136    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1137    C        Global thermohaline circulation. Part II:
1138    C        Sensitivity with interactive transport.
1139    C        J. Climate 12(1), 83-91
1140    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1141    C        Destabilization of the thermohaline circulation
1142    C        by atmospheric eddy transports.
1143    C        J. Climate 7(12), 1870-1882
1144    o Will need long integration testing.
1145    checkpoint53b_pre
1146    
1147    o created pkg/mom_common in preparation for variable viscosity code
1148    o renamed and split ini_mnc_io
1149    o pkg/land: only liquid water can diffuse or run-off
1150    o AIM using land: soil wetness availability account for snow
1151    o added printMapIncludesZeros to EEPARMS namelist
1152    
1153    checkpoint53a_post
1154    o restore TAMC compatiility for exf_constants.h
1155      (no usage of _d in .h)
1156    o Additional storing in KPP in an attempt to fix
1157      TAMC problem with adjoint of KPP code.
1158      (no success...)
1159      Identical code works fine with TAF.
1160    o Fixed verification/natl_box_adjoint experiments.
1161      Initial conditions for Experiments 4 and 5 are now
1162      set to "SEAICE_initialHEFF=0", which is more reasonable,
1163      and hence gives results closer to that of Experiment 2.
1164      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1165    
1166    checkpoint53
1167    o stable checkpoint with up to date adjoint
1168      TLM tests only run for 1st grdchk at the moment. Its unclear if
1169      this is a code problem or a problem with resetting code for g_
1170      variables that is being autogenerated wrong.
1171      Otherwise:
1172       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1173       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1174         are both still in chaos following their security messes.
1175    
1176    checkpoint52n_post
1177    o various build (mostly genmake2) changes including:
1178      - ability to build/run more easily within Cygwin and MacOS X
1179      - more complicated Makefiles with a stronger dependence on Gnu Make
1180    o pkg/seaice modifications
1181      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1182        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1183        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1184      - changed proxy for geostrophic velocity and updated
1185        verification/lab_sea/results/* accordingly
1186      - removed ADI dynamic solver from pkg/seaice
1187      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1188        they caused a segmentation fault under certain circumstances
1189      - removed unused field WATR
1190    o bug fix in exf-package:
1191      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1192         now reflect that.
1193    o small fixes in the cal-package:
1194      - set reference date to first of January for the 'model'-calendar
1195      - failing of cal_CheckDate in cal_FullDate now actually results in a
1196        warning
1197    o small modifications in exf-package to increase flexibility:
1198      - change climtempfreeze from a constant to a runtime parameter that
1199        is specified in data.exf_clim (default = -1.9)
1200      - introduce runtime parameter windstressmax (default = 2.0) that is
1201        specified in data.exf
1202    o fix in pkg/thsice:
1203      - update Evap (Tsf changes) to be consistent with Latent heat flux
1204      - maintain snow precipitation unchanged (even if Tsf >=0).
1205     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1206    
1207    checkpoint52m_post
1208    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1209      this does not change any of the results, because myIter=0 in swfrac always
1210      lead to jwtype=2 (the default anyway), but the call makes little sense
1211      as a default
1212    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1213    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1214      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1215    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1216    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1217    o extending useSingleCpuIO option to work with new exch2 I/O format
1218      - old-style, missing-tile I/O is still accessible by defining CPP
1219        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1220    o monitor package can write to NetCDF files and/or STDOUT
1221    o fix re-definition bug in MNC_GRID_INIT_ALL()
1222    o doc/api_reference added
1223      - a framework for building an API Reference Manual using all
1224        the "protex" comments embedded in the code
1225      - see pkg/generic_advdiff, pkg/mnc for examples
1226    o MNC:
1227      - make myThid the last argument for all subroutines
1228      - new default for the grid files: NO halos
1229      - add useMNC and other run-time flags
1230      - separate per-file-group handling of the unlimited dimension
1231      - early initialization of MNC w/ flags read at the eeboot stage
1232        and lookup tables set in initialize_fixed
1233      - write all MNC output to a freshly-created directory
1234    o thermodynamics sea-ice (thsice) is now tested with testreport.
1235    o test exp. advect_cs: use the standard cs32 grid ; update output.
1236    o Added functionality to grdchk:
1237      pick global i,j,k position (or nearest wet) where to perform check.
1238    
1239    checkpoint52l_post
1240    o new land formulation:
1241      a) use ground enthalpy as prognostic variable to ensure exact
1242         energy conservation.
1243      b) account for water temperature and for latent heat of freezing
1244         in all processes (rain, run-off, ground storage)
1245      c) compute surface and ground temperature implicitly.
1246    o aim_v23 modification for new land model:
1247      a) Treat separately land / ocean / sea-ice surface fluxes
1248         to allow implicit computation of land & sea-ice surface temp.
1249      b) add snow precipitation.
1250    checkpoint52l_pre
1251    
1252    o fix problem (when 1 tile is empty) in min/max monitor.
1253    o fix bug in timeAve (u,vZetatave in common block)
1254    o no restoring terms under ice for pkg/seaice
1255    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1256    o bug fix for pkg/seaice pickups
1257    o change MNC call locations and add coordinate attributes
1258    o mask vorticity at the corner ; affects global_ocean.cs output
1259    o fix ini_curvilinear_grid ; test CS experiments with mpi
1260    o aim.5l_cs: modify sea-ice fraction input file ; update output
1261    o exf: Adding simple range check routine for exf fields after read
1262    
1263    checkpoint52k_post
1264    o removed top-level directory "diags"
1265      - we migrated these functions to pkg/timeave a long time ago
1266    o fixed bug introduced in pkg/monitor
1267    o accuracy ctrlprec = 32 insuffient for gradient checks using
1268      averaged fields (I/O via cost_averages)
1269      -> use ctrl.h in active_file*.F to control I/O precision.
1270    o paramter list of CALL ADTHE_MAIN_LOOP
1271    o added initial do_the_model_io to ecco
1272    o set all ...Freq to zero after cost_final
1273      taveFreq, dumpFreq, pChkptFreq
1274    o MAIN and ECCO differentiability restored
1275    
1276    checkpoint52j_post
1277    o fix nchklev in tamc.h for global_ocean...
1278    o Bringing flow and store directives up-to-date
1279    o Really weird thing!
1280      call do_the_model_io from the_main_loop with parameters
1281      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1282      TAF places a faulty re-call of initialise_varia
1283      after cost_final call which should not be there!
1284    checkpoint52j_pre
1285    
1286    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1287      error messages
1288    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1289    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1290      debug output
1291    o modfied mdsio_writefield.F to handle non-global files under exch2
1292    o update AIM Cubed-Sphere exp (aim.5l_cs):
1293      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1294    o update AIM Equatorial Channel exp:
1295      use standard aim_v23 pkg and change the SST fields to be more realistic.
1296    o globalFile now works with exch2
1297    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1298      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1299    o limit timeave output for hi-res integrations
1300    
1301    checkpoint52i_post
1302    o removed CPP_EEOPTIONS.h from verification/*/code
1303    o updated the tiling for global_ocean_pressure
1304    checkpoint52i_pre
1305    
1306    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1307      the old pkg/aim).
1308    
1309    checkpoint52h_pre
1310    o shortened offending lines in exch2_send_rx?.template
1311    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1312    o genmake2: add build & execute test for NetCDF code
1313    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1314      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1315    o added useSingleCPUIO flag to monitor.F and mon_out.F
1316    o added temporary hack for sea-ice dynamics on the cube:
1317      metric terms are ignored and it is assumed that
1318      there is no sea-ice on cube faces 1, 2, 4, and 5.
1319    
1320    checkpoint52f_post
1321    o added exch2 cube routines to pkg/exch2
1322    o modified hs94.cs-32x32x5 to use it
1323    o added new grid files to hs94.cs-32x32x5
1324    checkpoint52f_pre
1325    
1326    checkpoint52e_post
1327    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1328      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1329    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1330      to work with implicit vertical advection and AB ;
1331    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1332    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1333     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1334    checkpoint52e_pre
1335    
1336    o fix bug in impldiff when Nr=1 or Nr=2.
1337    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1338    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1339    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1340      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1341    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1342    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1343    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1344    
1345    checkpoint52d_post
1346    o re-tiled many expts to allow comparison in multi-processor mode
1347      - updated output accordingly
1348      - changed hs94.128x64x5 to use intial T from file rather than use the
1349        random number generator
1350    o add infrastructure in model routines for fizhi and gridalt packages
1351    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1352    o changes to permit hi-res, cubed-sphere, configuration
1353      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1354      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1355      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1356        of surface winds for the cube
1357      (A verification experiment, based on global_ocean.cs32x15, but with
1358       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1359       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1360       complete with example surface forcing files and matlab scripts to look
1361       at the output and compare it with that of global_ocean.cs32x15.)
1362    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1363       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1364       to conform to the common rule.
1365    o check-in the first version of the coupler + interfaces for multi-components
1366       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1367       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1368       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1369       - ocean and atmos. share the same horizontal grid (no interpolation).
1370       - exchanges between component and coupler is done in forward_step
1371    o new verification experiment, cpl_aim+ocn:
1372       coupled ocean - AIM atmosphere on cs32 grid.
1373    
1374    checkpoint52d_pre
1375    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1376    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1377    
1378    checkpoint52c_post
1379    o Fixing OPTIONS files for use of exf:
1380      - ALLOW_ECCO not needed
1381      - ECCO_CPPOPTIONS.h should not be included from
1382        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1383        as has been the case in the past
1384      - All cal/exf related options are currently set in
1385        single header file. Should remain so until we
1386        agree on a consistent new policy.
1387    o Removed all CPP options for cal package.
1388      cal has no more CPP options.
1389    o modified STOREs in GAD_ADVECTION
1390    o corrected key comp. for passkey
1391    
1392    checkpoint52b_post
1393    o new version: "thsice" of thermodynamic sea-ice pkg:
1394     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1395     - modify fluxes but do not change theta directly;
1396     - light cleaning of bulk_force pkg (still needed with thsice).
1397     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1398       + output_thsice.txt to test thsice & bulk_force pkgs.
1399    o put back grid & coriolis monitor output.
1400    checkpoint52b_pre
1401    
1402    o call "do_the_model_io" at the beginning (=> dump initial state)
1403    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1404    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1405      (need info on NUMBER_OF_PTRACERS)
1406    o missing PTRACERS headers in some routines
1407    o default tamc.h in pkg/autodiff supposed to crash
1408      to ensure proper customization
1409    
1410    checkpoint52a_post
1411    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1412      - moved surfaceTendencyTice from pkg/seaice to main code
1413      - subroutine FREEZE_SURFACE now limits only surface temperature
1414        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1415        => new output.txt for global_ocean.cs32x15 & global_with_exf
1416      - keep the old version of FREEZE for backward compatibility;
1417        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1418      - corresponding modifs for TAF directives
1419    o added surface flux output variables to TIMEAVE_STATVARS
1420    o time-averaged output for pkg/ptracers
1421    o fix problem with ECCO-related divided adjoint
1422      snapshot file was missing some ad-variables,
1423      but no warning issued by TAF
1424    
1425    checkpoint52a_pre
1426    o some bug fixes for #undef REAL4_IS_SLOW
1427    
1428    checkpoint52 = ecco_c52_e35
1429    o after testing adjoints of checkpoint51u_post
1430    
1431    checkpoint51u_post
1432    o this is the post-merge tag of the ecco-branch
1433      (needs another clean checkout and re-testing)
1434    o various natl_box_adjoint configs and results
1435      but no input fields
1436    o obcs adjoint not yet merged!
1437    o adding ECCO global 1x1 and 2x2 degree configs
1438    o updated/extended some store directives for seaice
1439    o pkg/ecco now containes ecco-specific part of cost function
1440    o top level routines the_main_loop, forward_step
1441      supersede those in model/src/
1442      previous input data.cost now in data.ecco
1443      (new namelist ecco_cost_nml)
1444    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1445    
1446    checkpoint51t_post
1447    o this is the pre-merge tag of the ecco-branch
1448    
1449    checkpoint51s_post
1450    o cleanup: removed various obsolete #define-s
1451    o pkg/grdchk
1452      - renamed 'ph-grd 3' to 'grad-res'
1453      - merged from ecco-branch
1454        (remaining bug fixes for obcs gradient checks)
1455      - additional high-precision output for testreport
1456        (grep for 'precision_grdchk_result')
1457    
1458    checkpoint51r_post
1459    o cleaned up or removed CPP_OPTIONS.h files
1460    o updated results for some of the tests to reflect the new
1461      optfiles (-ieee: -O0 instead of -O3)
1462    
1463    checkpoint51q_post
1464    o cd_code:
1465      - moved cd_scheme.F -> cd_code_scheme.F
1466      - separate read_checkpoint from cd_code_ini_vars.F
1467      - separated cd_code part from write_checkpoint
1468      - updated AD_SOURCE, generated .flow
1469      - added CD_CODE_VARS.h to the_main_loop
1470      - Moving cd_code specific store dir.s to pkg/cd_code
1471    o ctrl package totally restructured
1472      - pack/unpack now optional and decoupled from
1473        xx_/adxx_ I/O
1474      - ctrl_pack/unpack cleaned
1475        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1476      - confined inclusion of AD_CONFIG.h to where necessary.
1477    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1478    
1479    checkpoint51p_post
1480    o create initial cd_code package
1481      - WARNING: the initialization of fields within packages
1482        is broken because INI_FIELDS (where READ_CHECKPOINT is
1483        called) is called *before* PACKAGES_INIT_VARIABLES.
1484        This seems to be backwards since
1485        1) its important to initially zero the entire field including
1486           the "halo" region
1487        2) zeroing needs to be done *before* reading pickup info
1488           and the pickup call might or might not happen in any
1489           particular run
1490      - this needs an overhaul for R2
1491    o cleanup verification/*/code/GMREDI_OPTIONS.h
1492    o cleanup testreport
1493    
1494    checkpoint51o_post
1495    o bringing AD-related verif's up to date with genmake2
1496      - carbon/
1497      - global_ocean.90x40x15/
1498      - hs.94.1x64x5/
1499      - (front_relax/ )
1500    o (more) consistent directory structure for AD-related verif.'s
1501    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1502    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1503    o bug fix in find_alpha.F for MDJWF:
1504      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1505        change rho -> rho-rhoConst
1506      - replace call find_rho to find_rhonum
1507    o initialisation of rFlx extended to full array (required by TAF)
1508      and shifted to thermodynamics
1509    o removed PTRACERS.h in ptracers routine
1510    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1511    o Correcting initialisations for fVerU, fVerV.
1512    o helping TAF to recognize dependency on kUp for
1513      fVerU, fVerV
1514    o Replacing delZ by delR in pkg/ctrl/
1515    checkpoint51o_pre
1516    
1517    o undid all of cp51 pending some cleanups and discussion
1518    o added the [#include "AD_CONFIG.h"] statement to all files that need
1519       it for adjoint/tl #defines
1520     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1521     o removed tools/genmake since it no longer works
1522    
1523    checkpoint51n_post
1524    o modifications to make FREEZE flux visible to pkg/kpp
1525      - moved surfaceTendencyTice from pkg/seaice to main code
1526      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1527      - subroutine FREEZE now limits only surface temperature
1528        (this means new output.txt for global_ocean.90x40x15,
1529         global_ocean.cs32x15, and global_with_exf)
1530    o added surface flux output variables to TIMEAVE_STATVARS
1531    
1532    checkpoint51n_pre
1533    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1534    o added [#include "AD_CONFIG.h"] to all files that use the following
1535      defines:
1536      - ALLOW_ADJOINT_RUN
1537      - ALLOW_TANGENTLINEAR_RUN
1538      - ALLOW_ECCO_OPTIMIZATION
1539    
1540    checkpoint51m_post
1541    o incorporating changes to get TAMC/TAF working in genmake2
1542      - added new TAMC/TAF targets to the Makefile
1543      - various cleanups related to package handling
1544      - these changes should have no impact on the forward model
1545    
1546    checkpoint51l_post
1547    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1548     - faster algorithm for cal_addtime.F
1549     - higher precision arithmetic, where needed
1550     - pkg/exf *startdate variables changed from calendar date to
1551       model integration time
1552    
1553    checkpoint51l_pre
1554    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1555    o enable to apply restoring on S & T only in a latitude band.
1556    o update output (external_forcing_surf modif. change truncation errors)
1557       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1558    
1559    checkpoint51k_post
1560    o change default to: useNHMTerms=.FALSE.
1561     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1562       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1563     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1564        exp1, ideal_2D_oce
1565     - change data file of oceanic exp (leave the results unchanged for now)
1566       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1567    o set gravitySign automatically according to the vertical coordinate used
1568      (and change sign: back to "logical" value: +1 when R increases downward)
1569    o added an include barrier to the default CPP_OPTIONS.h and
1570      removed the #include "PACKAGES_CONFIG.h" from it
1571    o fix a bug in mom_fluxform (from chk51j_post)
1572    
1573    checkpoint51j_post
1574    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1575    o adjusted some flow directives (dynamics, thermodynamics)
1576    o added cubed-sphere case to test cost function
1577    o heckpoint_lev?_directives.h now include
1578      pkg-specific directives, whenever those are enabled.
1579    o Moving pkg-specific flow directives to corresponding pkg
1580      Moving pkg-specific differentiation list to corresponding pkg
1581      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1582      ---> conventions are
1583           - pkg_ad.flow
1584           - pkg_ad_diff.list
1585           - pkg_ad_check_lev?_dir.h
1586    
1587    checkpoint51i_post
1588    o merge of the branch-genmake2
1589      - knowingly breaks the older genmake
1590      - automatic generation of all ALLOW_${PKG_NAME} defines
1591      - new testreport supersedes older testscript
1592    o large number of package inclusion and header cleanups
1593    checkpoint51i_pre
1594    
1595    o new output for adjoin of global ocean vector invariant
1596    o fix for checkpoint of thermodynamic seaice and bulk_force
1597    o Steph gchem various cleanups
1598    
1599    checkpoint 51h_pre
1600    o fixed some single quotes
1601    o modify gchem pkg to be more versatile
1602    o modifications to clean up dic pkg
1603    o add pkg/cfc
1604    
1605    checkpoint51g_post
1606    o provide links for ARPACK and ADM*TLM
1607    o start removing verification/vero/
1608    o update AD-related stuff
1609      (in particular some IF-statements in model/src/ routines)
1610    o adding to verification/global_ocean.90x40x15/ adjoint of
1611      vector invariant setup
1612    
1613    checkpoint51f_post
1614    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1615    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1616      of tracer Green's fucntions for ocean inversion project.
1617    
1618    checkpoint51f_pre
1619    o Added on-the-fly spatial interpolation capability
1620        "USE_EXF_INTERPOLATION" to pkg/exf.
1621      - This is a temporary Cartesian-grid hack until
1622        the super-duper ESMF coupler becomes available.
1623      - See verification/global_with_exf/README for usage example.
1624      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1625        flags and modified pkg/seaice accordingly.
1626    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1627        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1628        non-local transport term.
1629    
1630    checkpoint51e_post
1631    o pkg/mom_vecinv:
1632      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1633      - add time-ave diagnostic of vorticity advection.
1634    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1635    o atmospheric geopotential: - include water vapor effect;
1636                                - use p^kappa in p* scaling.
1637    o land pkg: read initial state from files.
1638    o AIM : add stratospheric drag in the upper level
1639    
1640    checkpoint51d_post
1641    o change function ILNBLNK (=> last non-blank char.) to return zero
1642      (instead of the string length) when the string. char is empty
1643    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1644    o modif's to restore TAMC compatibility
1645      - avoid "_d" constructs in PARAMETER declarations
1646      - avoid interrupting lines by comment lines
1647    o Use cluster local disks for purely local I/O
1648      vs. globally visible disks needed for ctrl stuff
1649      (merged from ecco-branch)
1650      - new active_file_loc... and mdsio_..._loc routines
1651      - affected packages: autodiff, ctrl, grdchk, mdsio
1652    
1653    checkpoint51c_post
1654    o introducing integer flag debugLevel
1655      - debLevZero: suppress all output
1656      - debLevA: standard
1657      - debLevB: equivalent to current debugMode=.TRUE.
1658    o introducing pathname variable mdsioLocalDir for mdsio
1659      that can be specified at runtime
1660      (relevant for cluster I/O to local disk)
1661    `
1662    >>>checkpoint51b_post
1663    adjoint of ptracers
1664    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1665    o extended state in checkpoint_lev?, etc.
1666    o alternative ctrl/cost with tr1 or ptracer
1667    o new comlev1_bibj_ptracers
1668    o new ptracers.flow
1669    o made ptracers_forcing same as external_forcing_s
1670    o added verification for adjoint with ptracers
1671      - adm. grdchk fail so far
1672      - tlm. grdchk OK
1673      - checked tapelev/comlev recomputations: OK
1674    <<<checkpoint51b_pre
1675    
1676    checkpoint51a_post
1677    o added code for biogeochemistry package
1678      - new pkgs: dic, gchem
1679      - new subroutine in ptracers
1680    o modify code for biogeo packages
1681      - in model/src and pkg/ptracers
1682    
1683    checkpoint51
1684    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1685      - autodiff, ctrl, exf, grdchk, seaice
1686      kept separate packages
1687      - cost, ecco, obcs
1688    o updating verification/internal_wave, verification/lab_sea
1689      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1690    
1691    checkpoint50i_post
1692    o Preparing next differentiable checkpoint and sync
1693      of MAIN vs. ecco-branch
1694      - 1st step: this one is differentiable
1695      - 2nd step: next(! not this) checkpoint will have updated packages
1696                  from ecco-branch)
1697    
1698    checkpoint50h_post
1699    o new package "land": provide surface BC for AIM.
1700    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1701    o AIM: use true log-P extrapolation for near surface temp (= as in
1702        F.Molteni paper) ; update aim.5l_cs output.
1703    o New variable in PARM03 for more flexible pickups
1704    o somewhat cleaned package initialisation sequence for
1705      ctrl/ cost/ ecco/ in packages_... routines
1706    
1707    checkpoint50g_post
1708    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1709      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1710      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1711        made the default because of faster convergence than ADI
1712    
1713    checkpoint50f_post
1714    o exf totally restructured
1715      - replaced all exf_set_ routines by one generic exf_set_gen.F
1716        and made sure it's still differentiable
1717      - split exf_getffields.F into new exf_bulkformulae.F
1718      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1719      - updated adjoint/makefile and relevant verif. accordingly
1720    
1721    checkpoint50f_pre
1722     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1723          + change Evap over land. (update aim.5l_cs output)
1724     o added missing .cvsignores and made uniform across expts
1725     o changed configuration of tidal_basin_2d expt
1726     o added pkg/debug functions for tracing code in fatal crashes
1727     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1728     o new fn in pkg/monitor to stop model if solution grows too big
1729     o removed lots of single quotes from comments
1730    
1731    checkpoint50e_post
1732    o make KPP work with PTRACERS
1733     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1734       nearly a copy of kpp_transport_s
1735     - there is no analogue to SurfaceTendencyS, so I have to use
1736       gPtr(of the surface layer) instead
1737    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1738    checkpoint50e_pre
1739    
1740    checkpoint50d_post
1741    o change kpp output from multiple-record state files to single-record state
1742      files analogous to write_state.F
1743    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1744      analogous to the cg2d-related output.
1745    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1746      so that writing to internal file fn (with length 512) fails.
1747    checkpoint50d_pre
1748    
1749    checkpoint50c_post
1750    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1751    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1752    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1753    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1754    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1755    
1756    checkpoint50c_pre
1757    Merging from release1_p13:
1758    o bug fix for pkg/seaice dynamic solver
1759    o Added SEAICE_initialHEFF to pkg/seaice
1760    
1761    checkpoint50b_post
1762    o store u*,v* in gU,V instead of in guNm1,gvNm1
1763    o in order to put the momForcing out of the Adams-Bashforth:
1764      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1765      to timestep.F
1766    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1767    o re-generate output for highly sensitive test-exp:
1768       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1769    
1770    checkpoint50b_pre
1771    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1772    o corrected CPP option mismatch in exf_Bulk... functions for case
1773      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1774    
1775    checkpoint50a_post
1776    o Bug fix for merging between c50 and KPP.
1777      ikey was passed from thermodynamics to kpp_calc via
1778      common block rather than being recomputed in kpp_calc,
1779      in contradiction with new key itdkey.
1780      New key ikppkey created, and tamc.h headers updated.
1781    
1782    checkpoint50
1783    - 2nd step of merge with ecco-branch:
1784      merge changes in ecco-branch back into main trunk
1785    - bug fix in find_alpha
1786    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1787    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1788    - merged some sliced AD support routines
1789    
1790    checkpoint49
1791    merged from ecco-branch:
1792    o exf:
1793      - Enable initialisation of forcing fields to constant
1794        (runtime) values.
1795      - in exf_getffields.F
1796        Reduce i-/j-loop to interior domain, discarding overlaps.
1797        That also fixes wrong TAF-key computations for key_1, key_2
1798        with bulf formulae.
1799      - exf_init.F modify #ifdef for exf_init_evap
1800      - exf_getffieldrec.F, ctrl_getrec.F
1801        The following INT-usages are not safe:
1802          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1803          fldcount = int(fldsecs/fldperiod) + 1
1804        and were modified.
1805    o autodiff: checkpoint_lev...
1806      - updated storing for bulk formulae (some arrays were missing)
1807      - added state for seaice package
1808      - synchronized with main branch
1809    o DIVA:
1810      Modif.s in
1811      - the_main_loop.F
1812      - the_model_main.F
1813      and added cost_final_restore.F cost_final_store.F
1814      o With these changes, it is possible to fully separate
1815        the first forward run to compute the cost function (mdthe_main_loop)
1816        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1817        into separate model executions.
1818        This enables better tuning of DIVA to given queue sizes.
1819      o Loss of cost function value in consecutive DIVA runs is
1820        fixed by storing to 'costfinal' file.
1821      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1822        beginning/end of adjoint integration is accounted for.
1823      The current changes apply to TAF-1.4.26.
1824      TAF has one remaining bug, requiring one manual change
1825      (see MITgcm manual).
1826    o cal: synchronized between MAIN and ecco-branch
1827    
1828    checkpoint48i_post
1829    o Changes to restore differentiability of code w.r.t. previous tag
1830      (mostly adding new routines to make list and replacing
1831      pressure by totPhiHyd).
1832    o Updated and merged grdchk package
1833      - has both ADM and TLM checks
1834      - works for single- and multi-proc.
1835      - output cleaned
1836      - worked successfully for parallel DIVA
1837    o genmake:
1838      - Adding -platform=SP4
1839      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1840    o Modif. for DIVA:
1841      ctrl_unpack should not be called in intermediate DIVA interval.
1842      (similar thing would apply for active files such as
1843      tbar, sbar, psbar, which should not be reinitialised;
1844      only relevant for ecco-branch)
1845    
1846    checkpoint48h_post
1847    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1848    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1849    o Added SEAICE_initialHEFF to pkg/seaice
1850    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1851    
1852    checkpoint48g_post
1853    --- EOS:
1854    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1855      store total Potential in totPhyHyd for diagnostics & EOS.
1856    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1857    --- Pressure/geopotential gradient:
1858    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1859    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1860      ( changes results of global_ocean_pressure )
1861    o NLFS + z-coord.: add eta*Rho' contribution.
1862    o accurate phiHyd when using interface-W at the middle between 2 centers
1863     ( changes results of ideal_2D_oce )
1864    o includes r* 2nd term in potential gradient.
1865    
1866    checkpoint48f_post
1867    Merging from release1_p12:
1868    o Modifications for using pkg/exf with pkg/seaice
1869      - improved description of the various forcing configurations
1870      - added basic radiation bulk formulae to pkg/exf
1871      - units/sign fix for evap computation in exf_getffields.F
1872      - updated verification/global_with_exf/results/output.txt
1873    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1874      (SBO) core products, including oceanic mass, center-of-mass,
1875      angular, and bottom pressure (see pkg/sbo/README.sbo).
1876    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1877      to avoid negative values in shallow regions.
1878      - updated verification/natl_box/results/output.txt
1879      - updated verification/lab_sea/results/output.txt
1880    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1881    o Added useSingleCpuIO option (see PARAMS.h).
1882    o Updated useSingleCpuIO option in mdsio_writefield.F to
1883      work with multi-field files, e.g., for single-file pickup.
1884    o pkg/seaice:
1885      - bug fix in growth.F: QNET for no shortwave case
1886      - added HeffFile for specifying initial sea-ice thickness
1887      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1888    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1889      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1890    o pkg/seaice:
1891      - adjoint-friendly modifications
1892      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1893    
1894    checkpoint48e_post
1895    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1896    o dynamics: change definition of computational domain & adapt mom_fluxform
1897      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1898    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1899        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1900        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1901        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1902        inverted_barometer solid-body.cs-32x32x1
1903      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1904    
1905    checkpoint48d_post
1906    o in preparation for r*:
1907     a) use pre-computed gradient of hydrostatic potential:
1908        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1909     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1910        => affects results of glob_oce_pressure (different truncation error)  
1911      update output.txt of ideal_2D_oce & global_ocean_pressure
1912    
1913    checkpoint48d_pre
1914    o in preparation for r*:
1915      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1916      pass the 2 comp. of the grad. as arguments to momentum S/R.
1917      but for the moment, only used if it does not change the results.
1918    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1919    
1920    checkpoint48c_post
1921    Modifications in treatment of initial flux forcing controls
1922    to avoid extra storing of flux fields.
1923    
1924    checkpoint48c_pre
1925    o Added tidal_basin_2d experiment (currently 1D!)
1926    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1927    
1928    checkpoint48b_post
1929    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1930     (modification to pressure gradient not yet implemented)
1931    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1932      (for U & V) that are used for vertical advection of momentum.
1933    
1934    checkpoint48a_post
1935    o In preparation for r*, use temp. array to compute vertical transport
1936       in flux-form momentum pkg. => change results of few test-exp.
1937      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1938                        lab_sea, natl_box & plume_on_slope
1939    
1940    checkpoint48
1941    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1942    
1943  checkpoint47j_post  checkpoint47j_post
1944  o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.  o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.

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