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revision 1.187 by jmc, Thu Oct 16 17:14:34 2003 UTC revision 1.650 by gforget, Wed Apr 19 19:43:10 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o correct a sign problem in cost_scat.F
8    o obcs and ptracers: fix boundary conditions for advections schemes
9      with larger stencil
10    o thsice adjoint: start
11    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
12      completeness
13    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
14      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
15    o ptracers adjoint:
16      * avoid extensive recomputatations
17      * fix missing re-init. of gptr (missed by TAF)
18    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
19      me to turn off the excessive output to STDOUT that this package produces
20    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
21      and add those terms in Vector-Invariant formulation.
22    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
23      if the control period (xx_hfluxperiod etc) is 0
24    o in profiles pkg, clean routines and fix details
25    o in ecco pkg, reading ssh data:
26      fix problem in case the model does not start at iter0=0
27    o fix mnc-pickup/restart for ptracers
28    o new package prifiles:
29      code to compute profile-based cost by Gael Forget
30      (modifs in ecco, ctrl, autodiff)
31    o Benign bug fix in initialization (spotted by M. Mazloff) of
32      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
33    
34    checkpoint58c_post
35    o adjoint: finish NLFS adjoint and provide reference output in
36      verification/global_ocean.90x40x15/results_ad_nlfs
37    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
38      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
39      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
40      with SEAICE_CGRID defined.
41    o move calendarDumps from "data" to "data.cal" and clean-up the code
42      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
43    o add useEXF & useCAL flags (for now, set in hard-coded way)
44    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
45      (were missing in NH mode, and wrong in quasihydrostatic mode).
46      waiting for Chris updated version of calc_gw to add those CALLs.
47    o fix bug in quasihydrostatic S/R ;
48      add a test for this option: global_ocean.90x40x15.qshyd
49    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
50      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
51    o add on/off flag useOffLine for package OFFLINE
52    o seaice:
53      - modify advection so that it works also on the C-grid
54      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
55        problem in multi-tile runs with C-grid
56      - add flags for clipping ice velocities and/or masking solver forcing
57      - fix drag (ocean on ice) formulation and a bug that caused noise in the
58        C-grid solver
59      - added a few comments to seaice_diffusion.F
60      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
61        are now exclusive)
62      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
63        required re-ordering the code a little:
64       + make DAIRN global variable (defined in SEAICE)
65       + move computation of the viscosities eta and zeta into a new separate
66         routine (because I need to recompute them in seaice_ocean_stress.F)
67    
68    checkpoint58b_post
69    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
70      update output.txt of exp. aim.5l_cs.thSI
71    o various mnc cleanups and improvements:
72      + shrink lookup tables by factor of ~4
73      + better error reporting when running out of lookup space
74      + able to handle longer path/file names (up to 500 chars)
75    o adjoint:
76      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
77      - TBD: "hidden" mom_vecinv recomp. in dynamics
78    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
79     (allow to differentiate between forcing components using new integer flags:
80      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
81     and add new flag to put Dissipation tendency out of Adams-Bashforth.
82    o ecco
83      - enable trend removal from SSH anomaly obs.
84    o adjoint
85      - a fix for PmEpR when #undef EXACT_CONSERV
86      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
87      - try to fix "hidden" recomp. in forward_step for NLFS
88        (NLFS seems broken sometimes after I checked it in)
89    o seaice:
90     - add c-grid version of the dynamic solver:
91       + three new routines that are the c-grid substitute lsr, dynsolver
92         and ostres
93       + put a few fields that were local to dynsolver into global common
94         blocks, so that I can move the computation of stresses etc into
95         seaice_lsr (saves coding but may break the adjoint).
96     - replace more hardwired parameters by runtime parameters
97     - add ice masks that mask the rhs of the implicit solvers where there
98       is no ice (commented out in seaice_dynsolver, because i am not sure
99       if this works properly), eventually this should replace the clipping
100       of ice velocities in seaice_dynsolver to +/-40cm/s.
101    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
102      include it only where its needed
103    o move balancing of fluxes before the call of external_forcing_surf
104    o seaice:
105      - correct units of turning angles (now they are really in degrees)
106      - move computation of GWATX/Y out of main routine into dynsolver
107      - initialize GWATX/Y in seaice_init
108    o Apply mask on Fresh-Water flux (needed for SSH forcing).
109      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
110    o seaice: add runtime flags for turning angles (default to zero)
111    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
112      and trend from exf forcing and ctrl control adjustments
113    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
114      (since checkpoint57x_post)
115    o change the default rotation period to 86164.s = the Earth rotation
116    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
117      and based on a reference stratification. Tested within hs94.cs-32x32x5.
118    o seaice advection: add code for choosing between the default (2nd order
119      central differences) and multiDim advection schemes provided by
120      pkg/generic_advdiff
121    o seaice:
122      - removed all references to SEAICE_GRID.h fields from
123        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
124        (cubed-sphere configuration will change a little)
125      - grid computations in seaice_init are obsolete now.
126      - cleaned up code a little so that is easier to read (hopefully).
127      - added new (better?) discretizations of default advection and diffusion
128        (turn on with SEAICEuseFluxForm)
129      - replace 1 in 3d global fields by kSurface in growth.F
130      
131    checkpoint58a_post
132    o seaice:
133      - bug fix in advect.F
134    o shelfice:
135      - separate shelfice load anomaly from pload (breaks with time
136        dependent forcing), => introduce constant field shelficeLoadAnomaly.
137        Its default is 0., but it may be computed more cleverly from (unknown)
138        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
139        done offline. A good approximation of the pressure load anomaly is
140        necessary to avoid large initial adjustment processes underneath
141        deep-reaching shelfice.
142      - small fix in ISOMIP shelfice_thermodynamics
143      - add more sophisticated thermodynamics of Hellmer (1989), this is
144        now the default
145      - give a few constants more intuitive names
146    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
147      if bulk formulae are used in long integration (especially EmPmR). Turn
148      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
149      if balancePrintMean, the imbalance that is substracted is printed to
150      STDOUT.
151    o fix bug (typo) in obcs_apply_eta.F
152    o add a new package shelfice which enables us to model the circulation
153      underneath shelf-ice with draughts of hundreds of meters.
154     - works
155     - to do: + include improved thermodynamics
156              + check whether kSurfC (from model/inc/SURFACE.h) can be used
157                instead of new field kTopC
158              + can we use topoFile, Ro_surf and existing code in ini_depth.F
159                instead of new field R_shelfIce and new code in ini_depth.F
160                and ini_mask_etc.F?
161              + adjust vertical mixing schemes?
162    o seaice pkg:
163     - add a cpp-flag to include a simple formula for a salinity dependent
164       freezing point of sea water at the surface
165     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
166       meridional stresses are now different (and hopefully correct)
167    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
168       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
169       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
170    o pkg/diagnostics: add options and parameters for regional-statistics
171       diagnostics ; define regions by reading a region-mask from a file
172       (might add other options later)
173    o pkg/bulk_force:
174     - add option and parameters to use AIM surface-flux formulae.
175     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
176       others forcing fields (defined in PARM05, parameter file "data") are loaded
177       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
178     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
179     - use the right EXCH call for uwind,vwind (to work on CS-grid).
180     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
181       and parameters (note: calcWindStress replaces .NOT.readwindstress).
182     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
183    
184    checkpoint58
185    o add "--embed-source" option to genmake2 which, when the supporting
186      tools can be compiled (as determined by genmake2) will turn on the
187      embed_files package which then embeds the entire MITgcm source code
188      (*.[fFhc] + Makefile) used for the build within the executable
189      - requested by CNH but off by default
190      - adds a paltry <9MB to the mitgcmuv executable in most cases
191      - only writes the output when useEMBEDSRC in eedata is true
192    o clean up 3-dim. relaxation codes:
193      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
194      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
195      * Thanks to Tom Haine for testing!
196    
197    checkpoint57z_post
198    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
199      affects output (@ truncation level) of exp. plume_on_slope ; updated.
200    o fix the pickup behavior for obcs in combination with ptracers
201    o fix a bug in ptracers_external_fields_load
202    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
203      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
204    o transfered surface NH pressure to eta field (if exactConserv).
205    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
206         and update lab_sea output.txt file.
207    o completing 3-dim. relaxation code: additional term
208         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
209      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
210      * At compile time, in "EXF_OPTIONS.h" set
211          #define  ALLOW_CLIMTEMP_RELAXATION
212          #define  ALLOW_CLIMSALT_RELAXATION
213      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
214          tauThetaClimRelax3Dim = 15552000.0,
215          tauSaltClimRelax3Dim  = 15552000.0,
216      * 3 cases:
217          1) Use a constant-in-time 3-dim. field
218          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
219          3) Real-time relax. to time-evolving prescribed field
220    o Adding Laplacian-type smoothness constraint on
221      initial and boundary (forcing) controls (ic, bc)
222      * enable at compile-time via
223        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
224      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
225      * Absolute scale somewhat unclear so far
226      * no area weighting was included since no other cost term does so far
227    
228    checkpoint57y_post
229    First step for a NLFS adjoint
230    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
231    o new init. routines for calc_r_star, calc_surf_dr
232    o still need to deal with ini_masks_etc
233    o testreport seemed happy
234    checkpoint57y_pre
235    
236    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
237    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
238    o add new offset feature to offline pkg (plus minor cleanup)
239    o cfc fixes for final year of integration
240    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
241      be in GCHEM_OPTIONS).
242    
243    checkpoint57x_post
244    o fix testreport Pb in multiple test experiment.
245    o cleanup our namelist syntax in verification:
246      - make it more F95 standards compliant (some work still needed)
247      - allows the vast majority of our tests to work with gfortran
248    o Non-Hydrostatic:
249     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
250     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
251    o Allow to apply AB on T,S rather than on AB(gT,gS):
252     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
253     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
254       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
255     - need a "clever" read_pickup to restart from the other AB formulation
256    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
257    o remove some unused variables (reduces number of compiler warnings)
258    o adjoint
259      * Disable useVariableViscosity for adjoint for time being
260        (there are a number of extensive recomputations)
261      * Initialize certain variables needed for adjoint
262    
263    checkpoint57w_post
264    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
265                 fix the singleCpuIO RS version of MDSWRITEFIELD
266       and add a WARNING if using globalFiles=T with multi-processors.
267    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
268      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
269    o tracer advection scheme:
270      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
271       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
272       was not very convenient).
273      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
274       (further tests needed for the implicit DST & Flux-Limiter schemes).
275    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
276      and sRef for convenience, handy, when you want to initialize
277      ptracers in a large domain with a constant non-zero value. Also,
278      untangle ptracers_init.F a little.
279    
280    checkpoint57v_post
281    o change dome exp. to use variable viscosity in side-drag terms.
282    o remove all the files from the cfc_offline test since they are now
283      incorporated into tutorial_cfc_offline which has been producing
284      identical results for a few days of testing
285    o add new parameter: sideDragFactor to enable half-slip-side BC
286      and change side-drag S/R to use viscosity from mom_calc_visc
287      (can switch back by setting sideDragFactor=0.); affects results at
288      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
289       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
290    o vorticity & strain are now computed without masking, to account for
291      no-slip-side BC in variable viscosity calculation ; mask is applied
292      anyway later on, before computing advection/coriolis terms.
293    o modify exp4 to test new obcs support for reading from external files
294      and for passive tracers
295    o fix behavior of ptracers_monitor when monitor output is written to a
296      netcdf-file; still not independent of monitor.F (writes in the same
297      file).
298    o change default value of tRef (put a uniform, meaningful value for ocean
299      & atmos) and initialize sRef (was missing, as Martin mentioned).
300    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
301      to be proportional to enstrophy dissipation length.  Thus,
302       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
303      This is now consistent with Smagorinsky and with the manual.
304    
305    checkpoint57u_post
306    o OBCS and PTRACERS: add open boundary support for passive tracers
307      - either use homogenous (pseudo) v.Neumann conditions or prescribe
308        OB-values from file; this is not different from the way theta and salinity
309        are treated
310      - however, Orlanski-radiation conditions are not supported, and the model
311        will stop if you use pTracers and Orlanski at the same time.
312      - beefed up the rountine obcs_external_fields_load: now only those open
313        boundary values are overwritten with values from files for which there
314        are really files, otherwise the OB-fields remain untouched. This makes
315        it possible to use different OBs at different ends of the domain (as
316        with EXF)
317    o reduce number of exch calls in shap_filt (s2).
318    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
319      truncation level) 4/5 MLAdjust test results (11&12 digits match).
320    
321    checkpoint57t_post
322    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
323    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
324      same truncation, independent of the face number: affects affects several
325      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
326    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
327      note that biharmonic viscosity + no-slip was not tested in any experiment.
328    o fix bug in non-linear free-surf side-drag ; generate new output for
329      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
330    o make mnc honor the writeBinaryPrec flag for most kinds of output
331    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
332    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
333      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
334    o add brackets in multi-terms sum to get same truncation, independent of
335      the face number (manage to get exactly same value of gU,gV at the cs-edge)
336      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
337    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
338      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
339      a maximum grid-scale Reynolds number.  Also, changes all length calculations
340      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
341      Suggested values of viscosity parameters found in mom_calc_visc.
342      Many new viscosity diagnostics available.
343    
344    checkpoint57s_post
345    o Add clearing-house for viscosity calculations, mom_calc_visc and
346      correct numerous bugs in LeithD and Smagorinsky discretizations.  
347      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
348      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
349      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
350      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
351      The Strain-Tension form is now called with useStrainTensonVisc=.true.
352      ViscAhStrain and viscAhTension are now retired.
353    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
354    o In response to JMC's bug report, genmake2 now ignores any soft-links
355      that it finds in the *current* directory when searching for files.
356      Soft-links found in any other source directories will still work as
357      they did before.
358    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
359      a C routine to unlimit the stack size
360    o mnc-ify pkg/aim snapshot vars
361    o mnc-ify pkg/land as requested by Daniel
362    o various changes to mnc including:
363      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
364      - output can now be grouped so that all files within a group
365          change the ITER portion of their names in lock-step together
366      - can now read ("global") PER-FACE (in addition to PER-TILE) files
367          and works with both EXCH1 and EXCH2 (but needs more testing)
368      - writing works for all verification test cases w/ g77 on Linux
369    
370    checkpoint57r_post
371    o make MNC variable initialization happen earlier
372    o add diagnostics for (almost) each term of the momentum Eq.
373    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
374    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
375    o remove MINIMAL_TAVE_OUTPUT option ;
376      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
377    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
378      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
379    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
380    o add time-dependent SST, SSS control
381    o cost terms in ecco/ modularized (new cost_generic.F)
382    o cost_averages routines are modularized (new cost_averagesgeneric.F)
383    o new infrastructure for seaice model vs. obs misfits in seaice/
384      * driver from the_main_loop.F is seaice_cost_driver.F
385      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
386      * gradient check in Exp. 6a of natl_box_adjoint/
387    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
388      (see README file)
389    
390    checkpoint57q_post
391    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
392    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
393      - bug was reported by Jean-Michel and Ian Fenty
394    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
395      update exp. cpl_aim+ocn output.
396    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
397      Needed for high-res. runs with large global files
398      to be able to limit tapelev size
399    o Changed some tests for adjoint:
400      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
401      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
402      * global_ocean.90x40x15/ back to default 3-level checkpointing
403    o Modifications to enable scripted COMMON to MODULE conversion
404      * verification/OpenAD/code/ has necessary scripts and description;
405      * converts, compiles and runs successfully;
406    
407    checkpoint57p_post
408    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
409    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
410      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
411    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
412    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
413      (was already the case for dissipation with mom_vecinv,
414       and also the case for grad.PhiHyd when staggered-timeStep)
415      This will allow to put dissipation out-off the AB time-stepping.
416     Unfortunately, affects truncation error. Update output of exp. that "fails"
417      (cg2d matching number) and leave the others for later: front_relax(10),
418      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
419      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
420    
421    checkpoint57o_post
422    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
423      (2) its ready to be documented during the 20050801 DocFest
424    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
425      for ideal_2D_oce and lab_sea on linux_ia32_g77
426    o set to #undef CTRL_SET_OLD_MAXCVARS_30
427      in global1x1_tot/code_seaice_adj to access indices 32, 33
428      (worth another tag)
429    
430    checkpoint57n_post
431    o adding precip control xx_precip 32
432    o adding swflux control xx_swflux 33
433    o Replacing 10 forcing penalty cost routines by 1 generic.
434    o Implementing partitioning in time-mean and variable adjustment
435      for atmos. state.
436    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
437    o in natl_box_adjoint:
438      * updated exp 1 to 10
439        (but does not have time-mean vs. variable split results yet)
440    o updated global1x1/*_seaice_adj/
441      to incorporate latest changes
442    o enable useSingleCpuIO for mdsio vector routines
443      (applies in particular to tapelev I/O)
444    o removed inefficient K-loop in all active_file*control*.F
445    
446    checkpoint57m_post
447    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
448      and advect_cs (use EXCH-2 and standard cs-32 grid files).
449    o pkg/exch2: filling of face-corner halo regions is optional
450      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
451    
452    checkpoint57l_post
453     tag before updating tutorials (pre-release-2)
454    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
455       for output and interpolation of input fields onto model grid)
456    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
457       Affects results of exp. rotating_tank ; update output.txt.
458    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
459          and taking the square quantity and/or using a fraction-weight field.
460    o fix aim_diagnostics_init.F mate numbers.
461    o add mnc output capability to diagnostics/diagstat and update
462      our cvsignore files for the ACSII output generated
463    
464    checkpoint57k_post
465    o lab_sea now uses diagnostics package and provides a suite of
466      new EXF diagnostics output.
467    
468    checkpoint57j_post
469    o exf
470      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
471        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
472        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
473      * extended diagnostics output
474        - now includes all EXF variables
475        - hs, hl moved to common block
476        - separate S/R for diagnostics, called after ctrl vector is added
477        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
478        - EXFqnet contains true Qnet (i.e. includes qsw)
479      * updated verif. lab_sea, global_with_exf
480      * Rearranging hflux (exf_mapfields -> exf_getforcing)
481        to ensure that diagnostics sees a true EXFqnet
482    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
483    o diagnostics pkg: change pointers so that 1 diagnostic can be used
484      several times with different frequencies.
485    o mnc-ify the thsice package as requested by Daniel Enderton
486      - the monitor--MNC output needs work
487      - many attributes need to be added (most are currently blank)
488    o mnc-ify theaim_v23 package as requested by Daniel Enderton
489      - many attributes need to be added (most are currently blank)
490    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
491    o add Sadourny like discretization to the 4th.O vorticity advection scheme
492    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
493      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
494         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
495    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
496     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
497    
498    checkpoint57i_post
499    o Diagnostics package was changed: diagnostic allocation is now deactivated
500      by setting an empty file name in the namelist (used to be by setting 0 frequency)
501    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
502      add 1rst Order upwind vertical Shear.
503    o add a quick fix for A/B checkpointing in OFFLINE mode
504    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
505      end-run around the C/Fortran linking horror in eesup/src/timers.F
506    o added pkg/runclock: allows user to terminate run based on wall clock
507    o added non-hydrostatic scaling parameter: nh_am2
508    o pkg/my82: futile attempt to make results compiler-independent by adding
509      some "_d 0", etc. no effect.
510    o for mnc output, fill the 'T' coordinate var with myTime and create a
511      separate 'iter' variable for iteration count
512    o pkg/diagnostics:
513      add new capability: output of Global/Regional & per-level statistics ;
514      tested against monitor output (including land & thSIce) on various exp.
515    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
516    
517    checkpoint57h_done
518      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
519      data.diagnostics, data.gchem, data.ptracers) is done.
520    
521    o pkg/diagnostics: prepare for Global/Regional statistics.
522      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
523    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
524      and rename it: DIFFERENT_MULTIPLE
525    
526    checkpoint57h_post
527    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
528    o pkg/diagnostics: change output frequency, now in seconds (instead
529      of Nb of iterations). This requires to change data.diagnostics.
530    checkpoint57h_pre
531    
532    o in mnc, let the user create the output dir if both mnc_outdir_date
533      and mnc_outdir_num are false
534    o add fflags() to pkg/diagnostics which allows one to specify, on a
535      per-file basis, the file precision [default behavior is unchanged]
536    o added diagnostics to pkg/kpp, including computation of mixed layer
537      depth based on a temperature/density criterion
538    o updated verification/natl_box to test the new pkg/kpp diagnostics
539    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
540    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
541    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
542      not mnc -- this mistake was found by JMC and is now corrected
543    
544    checkpoint57g_post
545    o add Adams-Bashforth 3rd Order time stepping:
546      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
547      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
548    checkpoint57g_pre
549    
550    o make lambda[Theta,Salt]ClimRelax spatially varying
551      (default remains spatially uniform constant based on tau)
552    o added new control variables
553      * init. uVel, vVel, etanN
554      * lambda[Theta,Salt]ClimRelax
555    o separate masks used for ctrl_pack/unpack 'from write_grid' output
556      (suggested by G. Forget)
557    
558    checkpoint57f_post
559    o add parameter "baseTime" = model base time = time at iteration zero
560      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
561      account for baseTime shift
562    o move Coriolis arrays from PARAMS.h to GRID.h
563    checkpoint57f_pre
564    
565    o mnc-ifying the seaice package
566    o introduced an alternative length scale calculation for use in the limiting
567      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
568    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
569    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
570      as well as grad(vort3).  Made it compatible with both approximate form
571      for the cubed sphere and full form of these gradients.  Added flag
572      useFullLeith to select between approximate and full form.  
573    o add "d0" in getcon.F to reduce differences between compilers/platforms
574      update output.txt of exp. fizhi-gridalt-hs
575    o change port_rand funtion to allow to set the seed.
576    o fix obscure MNC bug involving conversion between reals and integers
577      - it caused no problems with certain (eg. gcc, ifc) compilers but the
578        new version is now more standards-compliant
579    o adjoint-related modifications
580      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
581      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
582      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
583    
584    checkpoint57e_post
585    o Adding eddy stress controls a la Ferreira et al.
586    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
587    
588    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
589      update output.txt of exp. fizhi-gridalt-hs
590    o add more "Z" dimensions and associated coordinate vars to MNC
591    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
592    o parameter calendarDumps: when set, approximate months (30-31 days) and years
593      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
594      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
595      months and years.  Requires pkg/cal.
596    o diagnostics: add pickup functionality
597      - off by default for backwards compatibility
598      - current version only uses MDSIO -- MNC will be added
599    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
600    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
601    
602    checkpoint57d_post
603    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
604    o modify verification/ideal_2D_oce so that it tests the creation of mnc
605      output from the diagnostics package
606    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
607    o make genmake2 more portable by using ".$FS" instead of ".f" for more
608      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
609    o add coordinate variables to the MNC output from the diagnostics package
610    o change MNC-flags default value: true when useMNC=TRUE
611    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
612      the ability (off by default) to read the grid information using MNC
613    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
614    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
615    o do snap-shot diagnostics at the middle of the time-interval (instead of
616      at the end).
617    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
618      new test for AIM with thSIce + slab-ocean
619    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
620    o move state variable diagnostics to the beginning of the time step ;
621      (note: still needs some work specially for snap-shot diagnostics)
622      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
623    
624    checkpoint57c_post
625    o Change testing option (-ieee) to get closer agreement between g77 & ifort
626    o generate new output.txt files on faulks with g77 & the new -ieee option
627    checkpoint57c_pre
628    
629    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
630      update output.txt of exp. global_ocean.90x40x15
631    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
632      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
633    o add saltFlux(+File) forcing capability with periodicExternalForcing
634    o allow to use pkg diagnostics for GM-Redi & ThSIce output
635    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
636    o improvements for the MNC output from DIAGNOSTICS:
637      - correct handling of the unlimitied dimension
638      - all dims now have associated coordinate variables
639      - variables located at U, V, and Corner ("Z") points are now written
640        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
641        *all* data points are output
642    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
643    o added pkg/seaice/seaice_monitor.F
644    o mdsio_readfield.F can now read files visible only to master MPI process.
645    o pkg/seaice: some test code for ice-modified ocean stress
646    o exf_getffields interpolation defaults to bilinear for all scalar forcing
647      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
648      spurious negative numbers for precipitation and humidity.  Will cause
649      some small numerical differences for integrations using pkg/exf/exf_interp.F.
650    o pkg/ctrl/
651      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
652        May be enabled via doPackDiag
653      *  introduce z-scaling of
654         + gradient (doZscalePack) and
655         + control (doZscaleUnpack)
656    o pkg/mdsio/
657      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
658      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
659    
660    checkpoint57b_post
661    o simplify options in diagnostics_fill arguments (remove weird combinations)
662    o fix MNC coordinate variables so that they now contain per-face index
663      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
664      general, EXCH2 grids are only aligned to a "local" coordinate system
665    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
666    o Implement instantaneous output within pkg diagnostics:
667      setting a negative frequency in data.diagnostics produces
668     "snap-shot" output (as opposed to time-average if freq > 0)
669    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
670      NOTE: change ptracer diagnostics name: use 2 characters to work with
671            more than 9 tracers. Add also diagnostics of advect & diffus flux.
672    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
673      becomes the coordinate variable for the 'T' dimension
674    o add CF-style coordinate variables to MNC
675      - just a first cut:  numbers are meaningless on the cubesphere and
676        missing along the T axis but otherwise it works!
677    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
678    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
679    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
680      this is based directly on what the model compute, so that the content of
681      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
682    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
683    o clean up build options files for SunOS, in particular
684      - remove -traditional from xmakedepend
685      - change -xarch=v9 to -xarch=native for f77
686      - restore use of make (not gmake)
687      - add CC=gcc if using g77
688    o changes per discussion of AM, JMC, & EH3 today:
689      - move redundant "grid" variables out of "state" -- in preparation of
690        creating proper CF-style coordinate variables and in recognition
691        that any/all grid variables can be easily copied (eg. w/NCO) from
692        the grid files into any of the other NetCDF files
693      - *always* output grid variables with MDSIO (this will eventually be
694        changed)
695      - output MNC grid file if useMNC is true
696    o every instance of _END_MASTER() has been found and replaced with
697      _END_MASTER( myThid ) in order to satisfy certain picky Sun
698      preprocessors
699    o re-arrange diagnostics pkg initialisation:
700     - allow each package to extend the available diagnostics list
701     - add some checking and fix small problems (multi-threaded, ...)
702     - new S/R diagnostics_fill (replace fill_diagnostics):
703       look through the short list of active diag. (instead of the long list)
704       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
705    
706    checkpoint57a_post
707    o this set of changes restores TAMC compatibility
708      tested for global_ocean.90x40x15 adjoint on trough
709      (what a pain)
710    
711    checkpoint57a_pre
712    o some modifs in tools/build_options for sunos
713    o call ctrl_pack for ctrl at end for optimcycle=0
714    
715    checkpoint57
716    o add horizontal bi-harmonic viscosity for vertical velocity
717      - new parameter viscA4W (defaults to viscA4)
718      - affects only non-hydrostatic code
719      - to be done: no-slip lateral boundary conditions
720    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
721    o implement Implicit Vertical advection for pTracers
722    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
723      (implemented also for implicit vertical diffusion & advection)
724    o OBCS: extend application of tracer open boundary conditions
725      to a strip beyond the boundary of width Olx/Oly
726    o add call monitor to TAF set of required calls (flow directives)
727      and include in natl_box_adjoint
728    o untangle a few ifdefs related to cost, ctrl, autodiff
729      untangel a few ALLOW_ECCO_OPTIMIZATION
730    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
731      (theta2, salt2 in ecco_cost_weights)
732    
733    checkpoint56c_post
734    o OBCS as control variables
735      - update ctrl_ad_diff.list, obcs_ad_diff.list
736      - remove balance of obcs controls from default
737      - fix index bug nobcs in ctrl_init
738      - fix dummy fields filen in ctrl_pack
739      - add dummy weights for obcs
740    o lsopt: comment out fort.94 output
741    o optim:
742      - remove unnecessary header files
743      - adjusted namelists
744      - add xerbla.F to Makefile
745    o exf:
746      - multiple modifications of exf_check_range
747      - unit change in exf_init_runoff from [m/year] to [m/s]
748    o mdsio:
749      - i/o-vector change debugLevel from debLevA to debLevB
750    
751    checkpoint56b_post
752    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
753      is called from DO_THE_MODEL_IO
754      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
755      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
756      - clean up PTRACERS_WRITE_TIMEAVE a little
757    o add another verification experiment that tests both the cfc-pkg and
758      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
759      reactive tendencies treated inline with regular timestepping
760    o testreport previously did a lousy job of comparing small numbers, so
761      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
762      implemented in the little c-progam tmp_cmpnum.c which is embedded in
763      testreport.
764    o ptracers_monitor: bug fix for MPI
765    
766    checkpoint56a_post
767    o GCHEM: finish reorganizating the package
768      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
769        (introduces another 3D-array for each passive tracer, but only if
770        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
771        gchemTendency is not needed because the timestep is done separately)
772      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
773      - GCHEM is now---more or less cleanly---separate from PTRACERS
774      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
775        so clear to me how that should be done in a general way.
776    o CFC: improve formatting of output in CFC_ATMOS
777    o PTRACERS:
778      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
779        that ALL experiments with ptracers enable can be checked. This makes
780        GCHEM_MONITOR obsolete.
781      - include a runtime parameter PTRACERS_monitorFreq that defaults to
782        monitorFreq
783      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
784    o add PTRACERS (PTR0[1-5]) to testreport output
785    o exf_check_range:
786      * default changed to .TRUE.
787      * will check values for niter0 if debLevA, every timestep if debLevB
788      * STOP in exf_check_range if 'out of range'
789      * range chosen generous to allow for potential extema
790      TBD: a version with stricter range
791           permitted range would be runtime parameters
792    o GMredi:
793      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
794      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
795      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
796    o GCHEM:
797      - move call to GCHEM_FORCING_SEP, so that it is now called before
798        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
799      - introduced a useGCHEM runtime flag and applied it everywhere.
800      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
801        this flag is now only visible within GCHEM-pkg routines.
802      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
803        be replaced by a 3D array that is computed before thermodynamics; for
804        this, the tracer ID iTracer had to be included into the parameter list
805        of ptracers_forcing
806      - set up forward_step to call gchem_forcing, that will replace
807        gchem_forcing_int in ptracers_forcing
808      - cleaning up
809    o small cleaning of exch2: remove files that are also in eesupp/src
810    
811    checkpoint56
812    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
813    o mnc: cleanup "full" files--fixes out-of-memory problem
814    o ECCO-GODAE
815      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
816      * fully merged and updated from SIO code
817        windstress sign change affects
818        - exf_inscal_[u/v]stress
819        - sign of xx_tau[u/v] adjustments
820        - signs in cost_scat
821      * ctrl_get_gen: avoid update of tau[u/v] for first few days
822      * natl_box_adjoint updated and compressed
823      * 2-level checkpoint switch added
824        (tested in EXP. 1 of natl_box_adjoint)
825      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
826    o SVD
827      * first complete, non-hacked version for SVD calculations
828      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
829        performed via direct access files admtlm_vector.it????
830        (via ctrl_[un]pack)
831      * optimcycle is used for ARPACK iteration counter
832        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
833      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
834        and add linear transforms where necessary
835      * controls are initial/final SST, SSS (can be extended; need to check
836        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
837    o mdsio: filename info to both stderr, stdout
838    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
839      from sign change
840    
841    checkpoint55j_post
842    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
843      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
844    o add consistent build directories and .cvsignore files to verification
845    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
846    o make all subroutines 30 or less characters in length for certain older
847      compilers to work (a thorough search only turns up two routines in
848      pkg/ptracers)
849    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
850      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
851    
852    checkpoint55i_post
853    o change arrays for total vertical diffusivity (2.D if explicit,
854      3.D if implicit) ; each ptracer uses its own background value.
855    o added mnc/NetCDF output capability to ocn_compon_interf
856      - added bits to verification/cpl_aim+ocn so that it can run on
857        ITRDA and other clusters without the mpirun "-wd" option
858    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
859      configuration
860    o give MNC the ability to create additional files rather than
861      exceeding a specified file size limit "MNC_MAX_FILESIZE"
862      - the default is just less than 2GB which is a practical limit
863        on many systems
864    o Compute the non-local term using either KPP vertical diffusivity (=default)
865       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
866    
867    checkpoint55h_post
868    o add verification test "vermix"
869    o remove all the *_ioinc flags and replace with the single global
870      outputTypesInclusive flag
871    o allow to set a vertical profile of vertical diffusivity for T & S
872    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
873    o useMNC moved from data.mnc to data.pkg
874    
875    checkpoint55g_post
876    o Renaming carbon AD experiments to comply with testreport conventions
877    o Updating adjoint of Held-Suarez hs94.1x64x5
878    o Fixing directives for non-ECCO forward_step, after ECCO directives
879      have been fixed to avoid recomp. of do_oceanic_phys
880      Works well for global_ocean.90x40x15,
881      but recomp. issue remains for carbon
882    o Updating adjoint output for natl_box_adjoint after
883      pkg/ecco has been modified (see taga c55d_post)
884    
885    checkpoint55f_post
886    o rename to timeave_init_fixed
887    
888    checkpoint55e_post
889    o some delicate re-shuffle of store directives to avoid one
890      extra call of do_oceanic_physics
891      affects ecco_the_main_loop.F, do_oceanic_physics.F
892      checkpoint_lev1_directives.h
893    o NB: this may break global_ocean adjoint temporarily,
894      but it is clear how to fix it. Will do later, need this now.
895    
896    checkpoint55d_post
897    o ECCO specific cost function terms (up-to-date with 1x1 runs)
898    o ecco_cost_weights is modified to 1x1 runs
899    o modifs to allow observations to be read in as
900      single file or yearly files
901    o enable to read exf forcing fields as either
902      single file or yearly files (flag useExfYearlyFields)
903    checkpoint55d_pre
904    
905    o switch between 2-level and 3-level checkpointing
906    o add ability of MNC to write local and "partial" (eg. 2D slices where
907      the full 3D field is never actually stored) arrays to NetCDF files
908      with the correct (that is, the complete multi-dimensional) set of
909      array indicies
910      - used in mom_vecinv() to write the diagFreq output
911      - tested (demonstrated) in verification/aim.5l_cs
912    o further mnc-ification
913      - add verification/lab_sea to the list with mnc setups
914      - fix undefined mnc v-names in cd_code
915      - add kpp to mnc output (both snapshot and timeave)
916    o non-hydrostatic code
917      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
918        in calc_gw.F
919      - defaults to viscAh
920      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
921        friction or Leith) in non-hydrostatic mode, as long as there is
922        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
923    o pkg/cost
924      extend simple cost functions to treat time mean quantities
925      (T,U,V) via cost_accumulate_state from cost_tile
926    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
927        be 2 times larger than the minimum size the advection scheme requires.
928        now get a perfect conservation of salt in advect_cs test-exp (updated)
929    o GGL90 (Gaspar's TKE mixed layer)
930      - add horizontal diffusion of TKE, requires exchanges in
931        do_fields_blocking_exchanges, horizontal diffusivity is zero by
932        default. In OPA there is no horizontal diffusion of TKE but the
933        mixing coefficients are computed from a horizontal average of TKE of
934        6 points or so. I think that diffusion has a little more physical
935        justification.
936      - clean up ggl90_calc in the hope of reducing memory usage (this hope
937        was in vain)
938      - mask tke-variable in ggl90_init
939    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
940    o fix biharmonic diffusion on CS-grid.
941    o more obcs stuff
942      - added obcs_external_fields_load as an alternative to the EXF-pkg option
943        for reading boundary values. This routine is called from
944        obcs_prescribe_read
945      - updated obcs_check
946      - changed sponge layer relaxation parameter units for days to seconds
947      - turned off sponge layer by default
948      - changed argument list of OBCS_CALC to myTime+deltaTclock
949      - fixed about 35 bugs in obcs_external_fields_load
950    
951    checkpoint55c_post
952    o obcs stuff
953      - new runtime flags useOBCSprescribe, useOBCSbalance
954      - re-arranged obcs_calc
955      - moved exf_getobcs to obcs_prescibe_read
956        obcs_prescibe_read is called after ORLANSKI stuff
957        and independent of it (executable can contain all).
958      - updated obcs_check
959      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
960        These may be necessary only if tangential velocities are
961        prescribed at OB, not sure, needs testing.
962    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
963      which simplifies the calls and passes the ifc check-bounds test
964    
965    checkpoint55b_post
966    o add a 2D scalar, Z location, exchange_2 routine.
967    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
968      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
969      affects advect_cs results (for the wrong reason): update output.txt
970    o use a more standard discretization for biharmonic viscosity ;
971     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
972      affects results of dome set-up: update output.txt
973    o fix gad_advection.F (CubedSphere part), back to version 1.23
974    o fix bug in mom_vi_del2uv.F (CubedSphere part).
975    
976    checkpoint55a_post
977    o merged code to
978      * prescribe/read time-dependent open boundaries
979        (works in conjunction with exf, cal)
980      * sponge layer code for open boundaries
981      * each boundary N/S/E/W now has its own CPP option
982        (healthy for the adjoint)
983    
984    checkpoint55
985    o up-to-date adjoint of previous breaks
986      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
987      - global_ocean_ebm: adjoint still needs fix (TLM ok)
988      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
989      - carbon: * remove tr1-related adjoint verification
990                * add ptracer as control variable
991    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
992      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
993    
994    checkpoint54f_post
995    o in verification/carbin/ remove experiment related to
996      ALLOW_PASSIVE_TRACER (array tr1 etc)
997      code_ad/ input_ad/ results_ad
998    
999    o add two new packages
1000      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1001        + subject to optimization (memory)
1002      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1003        + subject to reordering (many GOTOs in the original code)
1004        + so far opps is called for every (i,j) point, and then operates in
1005          the vertical; one may want to reorder the scheme in order operate in
1006          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1007          fields)
1008    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1009      - all verification tests compile and run with linux_ia32_g77
1010      - defaults are compatible with current input files--nothing
1011        should change if you were not previously using MNC
1012      - MNC output has been added in numerous places (eg. timeave)
1013        but there are still a few writes not yet do-able with MNC
1014        (this is in progress)
1015      - flags now allow for either/or/both use of MDSIO and MNC and
1016        documentation will soon follow
1017      - numerous small formatting cleanups for ProTeX
1018    o add version info (via BUILD_INFO.h) to MNC and stdout
1019    
1020    checkpoint54e_post
1021    o add two new packages
1022      - pp81 (Packanowski and Philander, 1981), Richardson number and
1023        stratification dependent mixing
1024      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1025      - these scheme operate in a similar manner as KPP (without ghat, of
1026        course), however there is only one diffusivity that is used for both
1027        temperature and salinity (and passive tracers)ç
1028    o add offline package
1029    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1030      provided by Stephanie Dutkiewicz
1031    o genmake2: add ability to search for C compilers and cleanup test output
1032      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1033    
1034    checkpoint54d_post
1035    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1036    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1037      leading to additional shift by 5 days each year of integration
1038       (i.e. leading to considerable offset over the years)
1039    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1040    o start with no AB and no initial filtering (staggerTimeStep):
1041      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1042    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1043      (external loading & cpl import/export stay in forward_step.F)
1044    o update coupling interface to work with new staggerTimeStep
1045    o change MDSIO ptracers_pickup.
1046    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1047    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1048    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1049    
1050    checkpoint54c_post
1051    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1052      this affects (truncation error) output.txt of test-exp:
1053       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1054    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1055    o change Qnet to always be the net heat flux, (+upward).
1056      affects (truncation error) output of natl_box exp.: updated
1057    o define the max number of passive tracers in PTRACERS_SIZE.h
1058    o start to test mnc routinely in exp0
1059    o add sea-ice loading (sIceLoad) as a new forcing field.
1060    
1061    checkpoint54b_post
1062    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1063       impressive on Altix and Opteron systems)
1064    o diagnostics can now write NetCDF files through the mnc package
1065    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1066    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1067    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1068      affects (truncation error) output of lab_sea & natl_box exp.: updated
1069    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1070    
1071    checkpoint54a_post
1072    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1073    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1074    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1075    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1076      + internal_wave (shift in writing cg2d_ini_res)
1077    checkpoint54a_pre
1078    
1079    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1080      - modified verification/lab_sea and natl_box_adjoint accordingly
1081    
1082    checkpoint54
1083    checkpoint53g_post
1084    o prepare splitting of thermodynamics: store convect.counter in common block
1085    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1086      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1087    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1088    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1089    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1090    o restore adjointability
1091    
1092    checkpoint53f_post
1093    o modifications that affect AIM experiment results (update output.txt):
1094      - no advection of S at top interface Nr (pkg/generic_advdiff)
1095      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1096    o AIM pkg:
1097      - include stability function into surf.Flux derivative relative to Tsurf
1098      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1099    
1100    checkpoint53e_post
1101    o merged cylindrical coord configuration
1102    o added rotating_tank experiment
1103    checkpoint53e_pre
1104    
1105    checkpoint53d_post
1106    o faulks upgraded: re-generate output.txt that have changed:
1107       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1108    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1109    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1110    o added Sadourny discretization of Coriolis
1111      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1112      - re-enabled use of omega3 (useAbsVorticity)
1113    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1114      vector-invariant equations
1115      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1116    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1117      hopefully without new bugs
1118      - still to do: biharmonic friction for non-hydrostatic w
1119    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1120    o regenerated output for global_ocean_ebm (using -ieee)
1121    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1122      of mom_common/
1123      - simple re-arrangement of instructions within computing loop
1124    checkpoint53d_pre
1125    
1126    checkpoint53c_post
1127    o new version of coupler for AIM+thSIce and Ocean models
1128     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1129     - land: change Evaporation of snow
1130     - aim with thSIce: fix bug in snow-precip.
1131    o changes to calc_gw.F
1132     - bug fix for w^2 term near the bottom boundary
1133     - (hopefully) improve the lateral slip boundary condtions for use with
1134        partial/looped cells
1135      - because the bug fix changes two verification experiments anyway (exp5
1136        and plume on slope), change the lateral boundary condition from half slip
1137        to the value of no_slip_sides
1138    o ebm package wasnt quite up to the parallel task. Fixed that.
1139    o Adjoint of EBM package + verification
1140      * TLM OK
1141      * ADM not sufficient accuracy yet (needs further testing)
1142    
1143    checkpoint53b_post
1144    o Commiting new energy balance model to repository
1145      * package is pkg/ebm
1146      * verif. is verification/global_ocean_ebm
1147      * references are in ebm_driver.F
1148    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1149    C        Global thermohaline circulation. Part I:
1150    C        Sensitivity to atmospheric moisture transport.
1151    C        J. Climate 12(1), 71-82
1152    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1153    C        Global thermohaline circulation. Part II:
1154    C        Sensitivity with interactive transport.
1155    C        J. Climate 12(1), 83-91
1156    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1157    C        Destabilization of the thermohaline circulation
1158    C        by atmospheric eddy transports.
1159    C        J. Climate 7(12), 1870-1882
1160    o Will need long integration testing.
1161    checkpoint53b_pre
1162    
1163    o created pkg/mom_common in preparation for variable viscosity code
1164    o renamed and split ini_mnc_io
1165    o pkg/land: only liquid water can diffuse or run-off
1166    o AIM using land: soil wetness availability account for snow
1167    o added printMapIncludesZeros to EEPARMS namelist
1168    
1169    checkpoint53a_post
1170    o restore TAMC compatiility for exf_constants.h
1171      (no usage of _d in .h)
1172    o Additional storing in KPP in an attempt to fix
1173      TAMC problem with adjoint of KPP code.
1174      (no success...)
1175      Identical code works fine with TAF.
1176    o Fixed verification/natl_box_adjoint experiments.
1177      Initial conditions for Experiments 4 and 5 are now
1178      set to "SEAICE_initialHEFF=0", which is more reasonable,
1179      and hence gives results closer to that of Experiment 2.
1180      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1181    
1182    checkpoint53
1183    o stable checkpoint with up to date adjoint
1184      TLM tests only run for 1st grdchk at the moment. Its unclear if
1185      this is a code problem or a problem with resetting code for g_
1186      variables that is being autogenerated wrong.
1187      Otherwise:
1188       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1189       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1190         are both still in chaos following their security messes.
1191    
1192    checkpoint52n_post
1193    o various build (mostly genmake2) changes including:
1194      - ability to build/run more easily within Cygwin and MacOS X
1195      - more complicated Makefiles with a stronger dependence on Gnu Make
1196    o pkg/seaice modifications
1197      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1198        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1199        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1200      - changed proxy for geostrophic velocity and updated
1201        verification/lab_sea/results/* accordingly
1202      - removed ADI dynamic solver from pkg/seaice
1203      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1204        they caused a segmentation fault under certain circumstances
1205      - removed unused field WATR
1206    o bug fix in exf-package:
1207      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1208         now reflect that.
1209    o small fixes in the cal-package:
1210      - set reference date to first of January for the 'model'-calendar
1211      - failing of cal_CheckDate in cal_FullDate now actually results in a
1212        warning
1213    o small modifications in exf-package to increase flexibility:
1214      - change climtempfreeze from a constant to a runtime parameter that
1215        is specified in data.exf_clim (default = -1.9)
1216      - introduce runtime parameter windstressmax (default = 2.0) that is
1217        specified in data.exf
1218    o fix in pkg/thsice:
1219      - update Evap (Tsf changes) to be consistent with Latent heat flux
1220      - maintain snow precipitation unchanged (even if Tsf >=0).
1221     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1222    
1223    checkpoint52m_post
1224    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1225      this does not change any of the results, because myIter=0 in swfrac always
1226      lead to jwtype=2 (the default anyway), but the call makes little sense
1227      as a default
1228    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1229    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1230      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1231    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1232    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1233    o extending useSingleCpuIO option to work with new exch2 I/O format
1234      - old-style, missing-tile I/O is still accessible by defining CPP
1235        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1236    o monitor package can write to NetCDF files and/or STDOUT
1237    o fix re-definition bug in MNC_GRID_INIT_ALL()
1238    o doc/api_reference added
1239      - a framework for building an API Reference Manual using all
1240        the "protex" comments embedded in the code
1241      - see pkg/generic_advdiff, pkg/mnc for examples
1242    o MNC:
1243      - make myThid the last argument for all subroutines
1244      - new default for the grid files: NO halos
1245      - add useMNC and other run-time flags
1246      - separate per-file-group handling of the unlimited dimension
1247      - early initialization of MNC w/ flags read at the eeboot stage
1248        and lookup tables set in initialize_fixed
1249      - write all MNC output to a freshly-created directory
1250    o thermodynamics sea-ice (thsice) is now tested with testreport.
1251    o test exp. advect_cs: use the standard cs32 grid ; update output.
1252    o Added functionality to grdchk:
1253      pick global i,j,k position (or nearest wet) where to perform check.
1254    
1255    checkpoint52l_post
1256    o new land formulation:
1257      a) use ground enthalpy as prognostic variable to ensure exact
1258         energy conservation.
1259      b) account for water temperature and for latent heat of freezing
1260         in all processes (rain, run-off, ground storage)
1261      c) compute surface and ground temperature implicitly.
1262    o aim_v23 modification for new land model:
1263      a) Treat separately land / ocean / sea-ice surface fluxes
1264         to allow implicit computation of land & sea-ice surface temp.
1265      b) add snow precipitation.
1266    checkpoint52l_pre
1267    
1268    o fix problem (when 1 tile is empty) in min/max monitor.
1269    o fix bug in timeAve (u,vZetatave in common block)
1270    o no restoring terms under ice for pkg/seaice
1271    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1272    o bug fix for pkg/seaice pickups
1273    o change MNC call locations and add coordinate attributes
1274    o mask vorticity at the corner ; affects global_ocean.cs output
1275    o fix ini_curvilinear_grid ; test CS experiments with mpi
1276    o aim.5l_cs: modify sea-ice fraction input file ; update output
1277    o exf: Adding simple range check routine for exf fields after read
1278    
1279    checkpoint52k_post
1280    o removed top-level directory "diags"
1281      - we migrated these functions to pkg/timeave a long time ago
1282    o fixed bug introduced in pkg/monitor
1283    o accuracy ctrlprec = 32 insuffient for gradient checks using
1284      averaged fields (I/O via cost_averages)
1285      -> use ctrl.h in active_file*.F to control I/O precision.
1286    o paramter list of CALL ADTHE_MAIN_LOOP
1287    o added initial do_the_model_io to ecco
1288    o set all ...Freq to zero after cost_final
1289      taveFreq, dumpFreq, pChkptFreq
1290    o MAIN and ECCO differentiability restored
1291    
1292    checkpoint52j_post
1293    o fix nchklev in tamc.h for global_ocean...
1294    o Bringing flow and store directives up-to-date
1295    o Really weird thing!
1296      call do_the_model_io from the_main_loop with parameters
1297      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1298      TAF places a faulty re-call of initialise_varia
1299      after cost_final call which should not be there!
1300    checkpoint52j_pre
1301    
1302    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1303      error messages
1304    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1305    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1306      debug output
1307    o modfied mdsio_writefield.F to handle non-global files under exch2
1308    o update AIM Cubed-Sphere exp (aim.5l_cs):
1309      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1310    o update AIM Equatorial Channel exp:
1311      use standard aim_v23 pkg and change the SST fields to be more realistic.
1312    o globalFile now works with exch2
1313    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1314      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1315    o limit timeave output for hi-res integrations
1316    
1317    checkpoint52i_post
1318    o removed CPP_EEOPTIONS.h from verification/*/code
1319    o updated the tiling for global_ocean_pressure
1320    checkpoint52i_pre
1321    
1322    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1323      the old pkg/aim).
1324    
1325    checkpoint52h_pre
1326    o shortened offending lines in exch2_send_rx?.template
1327    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1328    o genmake2: add build & execute test for NetCDF code
1329    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1330      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1331    o added useSingleCPUIO flag to monitor.F and mon_out.F
1332    o added temporary hack for sea-ice dynamics on the cube:
1333      metric terms are ignored and it is assumed that
1334      there is no sea-ice on cube faces 1, 2, 4, and 5.
1335    
1336    checkpoint52f_post
1337    o added exch2 cube routines to pkg/exch2
1338    o modified hs94.cs-32x32x5 to use it
1339    o added new grid files to hs94.cs-32x32x5
1340    checkpoint52f_pre
1341    
1342    checkpoint52e_post
1343    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1344      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1345    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1346      to work with implicit vertical advection and AB ;
1347    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1348    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1349     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1350    checkpoint52e_pre
1351    
1352    o fix bug in impldiff when Nr=1 or Nr=2.
1353    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1354    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1355    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1356      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1357    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1358    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1359    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1360    
1361    checkpoint52d_post
1362    o re-tiled many expts to allow comparison in multi-processor mode
1363      - updated output accordingly
1364      - changed hs94.128x64x5 to use intial T from file rather than use the
1365        random number generator
1366    o add infrastructure in model routines for fizhi and gridalt packages
1367    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1368    o changes to permit hi-res, cubed-sphere, configuration
1369      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1370      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1371      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1372        of surface winds for the cube
1373      (A verification experiment, based on global_ocean.cs32x15, but with
1374       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1375       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1376       complete with example surface forcing files and matlab scripts to look
1377       at the output and compare it with that of global_ocean.cs32x15.)
1378    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1379       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1380       to conform to the common rule.
1381    o check-in the first version of the coupler + interfaces for multi-components
1382       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1383       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1384       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1385       - ocean and atmos. share the same horizontal grid (no interpolation).
1386       - exchanges between component and coupler is done in forward_step
1387    o new verification experiment, cpl_aim+ocn:
1388       coupled ocean - AIM atmosphere on cs32 grid.
1389    
1390    checkpoint52d_pre
1391    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1392    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1393    
1394    checkpoint52c_post
1395    o Fixing OPTIONS files for use of exf:
1396      - ALLOW_ECCO not needed
1397      - ECCO_CPPOPTIONS.h should not be included from
1398        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1399        as has been the case in the past
1400      - All cal/exf related options are currently set in
1401        single header file. Should remain so until we
1402        agree on a consistent new policy.
1403    o Removed all CPP options for cal package.
1404      cal has no more CPP options.
1405    o modified STOREs in GAD_ADVECTION
1406    o corrected key comp. for passkey
1407    
1408    checkpoint52b_post
1409    o new version: "thsice" of thermodynamic sea-ice pkg:
1410     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1411     - modify fluxes but do not change theta directly;
1412     - light cleaning of bulk_force pkg (still needed with thsice).
1413     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1414       + output_thsice.txt to test thsice & bulk_force pkgs.
1415    o put back grid & coriolis monitor output.
1416    checkpoint52b_pre
1417    
1418    o call "do_the_model_io" at the beginning (=> dump initial state)
1419    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1420    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1421      (need info on NUMBER_OF_PTRACERS)
1422    o missing PTRACERS headers in some routines
1423    o default tamc.h in pkg/autodiff supposed to crash
1424      to ensure proper customization
1425    
1426    checkpoint52a_post
1427    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1428      - moved surfaceTendencyTice from pkg/seaice to main code
1429      - subroutine FREEZE_SURFACE now limits only surface temperature
1430        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1431        => new output.txt for global_ocean.cs32x15 & global_with_exf
1432      - keep the old version of FREEZE for backward compatibility;
1433        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1434      - corresponding modifs for TAF directives
1435    o added surface flux output variables to TIMEAVE_STATVARS
1436    o time-averaged output for pkg/ptracers
1437    o fix problem with ECCO-related divided adjoint
1438      snapshot file was missing some ad-variables,
1439      but no warning issued by TAF
1440    
1441    checkpoint52a_pre
1442    o some bug fixes for #undef REAL4_IS_SLOW
1443    
1444    checkpoint52 = ecco_c52_e35
1445    o after testing adjoints of checkpoint51u_post
1446    
1447    checkpoint51u_post
1448    o this is the post-merge tag of the ecco-branch
1449      (needs another clean checkout and re-testing)
1450    o various natl_box_adjoint configs and results
1451      but no input fields
1452    o obcs adjoint not yet merged!
1453    o adding ECCO global 1x1 and 2x2 degree configs
1454    o updated/extended some store directives for seaice
1455    o pkg/ecco now containes ecco-specific part of cost function
1456    o top level routines the_main_loop, forward_step
1457      supersede those in model/src/
1458      previous input data.cost now in data.ecco
1459      (new namelist ecco_cost_nml)
1460    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1461    
1462    checkpoint51t_post
1463    o this is the pre-merge tag of the ecco-branch
1464    
1465    checkpoint51s_post
1466    o cleanup: removed various obsolete #define-s
1467    o pkg/grdchk
1468      - renamed 'ph-grd 3' to 'grad-res'
1469      - merged from ecco-branch
1470        (remaining bug fixes for obcs gradient checks)
1471      - additional high-precision output for testreport
1472        (grep for 'precision_grdchk_result')
1473    
1474    checkpoint51r_post
1475    o cleaned up or removed CPP_OPTIONS.h files
1476    o updated results for some of the tests to reflect the new
1477      optfiles (-ieee: -O0 instead of -O3)
1478    
1479    checkpoint51q_post
1480    o cd_code:
1481      - moved cd_scheme.F -> cd_code_scheme.F
1482      - separate read_checkpoint from cd_code_ini_vars.F
1483      - separated cd_code part from write_checkpoint
1484      - updated AD_SOURCE, generated .flow
1485      - added CD_CODE_VARS.h to the_main_loop
1486      - Moving cd_code specific store dir.s to pkg/cd_code
1487    o ctrl package totally restructured
1488      - pack/unpack now optional and decoupled from
1489        xx_/adxx_ I/O
1490      - ctrl_pack/unpack cleaned
1491        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1492      - confined inclusion of AD_CONFIG.h to where necessary.
1493    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1494    
1495    checkpoint51p_post
1496    o create initial cd_code package
1497      - WARNING: the initialization of fields within packages
1498        is broken because INI_FIELDS (where READ_CHECKPOINT is
1499        called) is called *before* PACKAGES_INIT_VARIABLES.
1500        This seems to be backwards since
1501        1) its important to initially zero the entire field including
1502           the "halo" region
1503        2) zeroing needs to be done *before* reading pickup info
1504           and the pickup call might or might not happen in any
1505           particular run
1506      - this needs an overhaul for R2
1507    o cleanup verification/*/code/GMREDI_OPTIONS.h
1508    o cleanup testreport
1509    
1510    checkpoint51o_post
1511    o bringing AD-related verif's up to date with genmake2
1512      - carbon/
1513      - global_ocean.90x40x15/
1514      - hs.94.1x64x5/
1515      - (front_relax/ )
1516    o (more) consistent directory structure for AD-related verif.'s
1517    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1518    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1519    o bug fix in find_alpha.F for MDJWF:
1520      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1521        change rho -> rho-rhoConst
1522      - replace call find_rho to find_rhonum
1523    o initialisation of rFlx extended to full array (required by TAF)
1524      and shifted to thermodynamics
1525    o removed PTRACERS.h in ptracers routine
1526    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1527    o Correcting initialisations for fVerU, fVerV.
1528    o helping TAF to recognize dependency on kUp for
1529      fVerU, fVerV
1530    o Replacing delZ by delR in pkg/ctrl/
1531    checkpoint51o_pre
1532    
1533    o undid all of cp51 pending some cleanups and discussion
1534    o added the [#include "AD_CONFIG.h"] statement to all files that need
1535       it for adjoint/tl #defines
1536     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1537     o removed tools/genmake since it no longer works
1538    
1539    checkpoint51n_post
1540    o modifications to make FREEZE flux visible to pkg/kpp
1541      - moved surfaceTendencyTice from pkg/seaice to main code
1542      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1543      - subroutine FREEZE now limits only surface temperature
1544        (this means new output.txt for global_ocean.90x40x15,
1545         global_ocean.cs32x15, and global_with_exf)
1546    o added surface flux output variables to TIMEAVE_STATVARS
1547    
1548    checkpoint51n_pre
1549    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1550    o added [#include "AD_CONFIG.h"] to all files that use the following
1551      defines:
1552      - ALLOW_ADJOINT_RUN
1553      - ALLOW_TANGENTLINEAR_RUN
1554      - ALLOW_ECCO_OPTIMIZATION
1555    
1556    checkpoint51m_post
1557    o incorporating changes to get TAMC/TAF working in genmake2
1558      - added new TAMC/TAF targets to the Makefile
1559      - various cleanups related to package handling
1560      - these changes should have no impact on the forward model
1561    
1562    checkpoint51l_post
1563    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1564     - faster algorithm for cal_addtime.F
1565     - higher precision arithmetic, where needed
1566     - pkg/exf *startdate variables changed from calendar date to
1567       model integration time
1568    
1569    checkpoint51l_pre
1570    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1571    o enable to apply restoring on S & T only in a latitude band.
1572    o update output (external_forcing_surf modif. change truncation errors)
1573       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1574    
1575  checkpoint51k_post  checkpoint51k_post
1576  o change default to: useNHMTerms=.FALSE.  o change default to: useNHMTerms=.FALSE.
1577   - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):   - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):

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