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revision 1.198 by edhill, Tue Oct 28 22:57:59 2003 UTC revision 1.674 by jmc, Fri Jun 9 16:59:16 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 exf & curvilinear-grid: no longer modify longitude xC & xG.
8    o pkg/ggl90: fix sloppy output and fix a bug
9    o pkg/seaice: added SEAICEuseEVPpickup parameter
10      - Set to false in order to start EVP solver with
11        non-EVP pickup files when using SEAICEuseEVP
12      - fix sign error in diffusion in seaice_calc_rhs
13    
14    checkpoint58h_post
15    * Modifications for bottom topography control
16      o replace hFacC by _hFacC at various places
17      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
18      o add non-self-adjoint cg2d_nsa
19      o update autodiff support routines
20      o re-initialise hfac after ctrl_depth_ini
21      o works for 5x5 box, doesnt work for global_ocean.90x40x15
22    * Adding verification for 5x5 box (4-layer) bottom topography control
23    
24    checkpoint58g_post
25    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
26       used for mean seasonal cycle, mean diurnal cycle); add an example
27       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
28    o pkg/ggl90:
29      - add parameter (minimum surface kinetic energy)
30      - fix bug (avoiding division by zero)
31    o couple pkg/thsice to pkg/seaice:
32      - modify advection in seaice to accomodate new scalar fields to be advected
33      - only muliDimAdection scheme work with seaice/thsice
34      - mapping of thsice-variables to seaice-variables, back and forth
35      - does not break the verification experiments, but does not give the
36        desired results either
37    o pkg/seaice
38      - make (default) second order advection a bit less confusing?
39    
40    checkpoint58f_post
41    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
42      to pkg/seaice):
43      - new routines thsice_map_exf and thsice_get_exf provide the interface
44      - add an additional formal parameter to thsice_solve4temp
45    o pkg/exf:
46      - add new fields wspeed, snowprecip (to be able to couple to thsice)
47      - correct Stefan-Boltzmann constant
48      - new parameter for longwave surface emittance
49      - separate some stuff from exf_bulkformulae into new routines  
50        exf_radiation, exf_wind
51      - add new parameters and constants: longwave emissivity for ocean, ice
52        and snow, evaporation parameters over ice
53      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
54        either wind from stress or stress from wind
55    o pkg/thSIce:
56    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
57    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
58       and THSICE_CALC_THICKN
59    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
60    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
61      to make debugging easier.
62    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
63    o pkg/bulk_force:
64      - clean-up comments and parameters ;
65      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
66    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
67      generate new output for test-experiment: aim.5l_cs.thSI
68    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
69      testreport accordingly
70    
71    checkpoint58e_post
72    o SEAICE_CGRID adjoint done
73    o R_STAR adjoint implemented.
74      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
75      * need to sort out init. of h0facc, etc.
76    o Make pkg/profile fully independent of ecco,cost, etc. stuff
77      to be able to use it in pure forward.
78    
79    checkpoint58d_post
80    o upgrade simple test-experiment to tutorial example:
81     step.1: duplicate the experiment and (step.2) will remove the old copy.
82      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
83      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
84      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
85      tutorial_global_oce_biogeo    <- copy of dic_example
86      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
87      tutorial_plume_on_slope       <- copy of plume_on_slope
88      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
89      tutorial_global_oce_optim     <- empty for now (David ?)
90      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
91     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
92    o correct a sign problem in cost_scat.F
93    o obcs and ptracers: fix boundary conditions for advections schemes
94      with larger stencil
95    o thsice adjoint: start
96    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
97      completeness
98    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
99      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
100    o ptracers adjoint:
101      * avoid extensive recomputatations
102      * fix missing re-init. of gptr (missed by TAF)
103    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
104      me to turn off the excessive output to STDOUT that this package produces
105    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
106      and add those terms in Vector-Invariant formulation.
107    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
108      if the control period (xx_hfluxperiod etc) is 0
109    o in profiles pkg, clean routines and fix details
110    o in ecco pkg, reading ssh data:
111      fix problem in case the model does not start at iter0=0
112    o fix mnc-pickup/restart for ptracers
113    o new package prifiles:
114      code to compute profile-based cost by Gael Forget
115      (modifs in ecco, ctrl, autodiff)
116    o Benign bug fix in initialization (spotted by M. Mazloff) of
117      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
118    
119    checkpoint58c_post
120    o adjoint: finish NLFS adjoint and provide reference output in
121      verification/global_ocean.90x40x15/results_ad_nlfs
122    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
123      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
124      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
125      with SEAICE_CGRID defined.
126    o move calendarDumps from "data" to "data.cal" and clean-up the code
127      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
128    o add useEXF & useCAL flags (for now, set in hard-coded way)
129    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
130      (were missing in NH mode, and wrong in quasihydrostatic mode).
131      waiting for Chris updated version of calc_gw to add those CALLs.
132    o fix bug in quasihydrostatic S/R ;
133      add a test for this option: global_ocean.90x40x15.qshyd
134    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
135      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
136    o add on/off flag useOffLine for package OFFLINE
137    o seaice:
138      - modify advection so that it works also on the C-grid
139      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
140        problem in multi-tile runs with C-grid
141      - add flags for clipping ice velocities and/or masking solver forcing
142      - fix drag (ocean on ice) formulation and a bug that caused noise in the
143        C-grid solver
144      - added a few comments to seaice_diffusion.F
145      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
146        are now exclusive)
147      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
148        required re-ordering the code a little:
149       + make DAIRN global variable (defined in SEAICE)
150       + move computation of the viscosities eta and zeta into a new separate
151         routine (because I need to recompute them in seaice_ocean_stress.F)
152    
153    checkpoint58b_post
154    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
155      update output.txt of exp. aim.5l_cs.thSI
156    o various mnc cleanups and improvements:
157      + shrink lookup tables by factor of ~4
158      + better error reporting when running out of lookup space
159      + able to handle longer path/file names (up to 500 chars)
160    o adjoint:
161      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
162      - TBD: "hidden" mom_vecinv recomp. in dynamics
163    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
164     (allow to differentiate between forcing components using new integer flags:
165      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
166     and add new flag to put Dissipation tendency out of Adams-Bashforth.
167    o ecco
168      - enable trend removal from SSH anomaly obs.
169    o adjoint
170      - a fix for PmEpR when #undef EXACT_CONSERV
171      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
172      - try to fix "hidden" recomp. in forward_step for NLFS
173        (NLFS seems broken sometimes after I checked it in)
174    o seaice:
175     - add c-grid version of the dynamic solver:
176       + three new routines that are the c-grid substitute lsr, dynsolver
177         and ostres
178       + put a few fields that were local to dynsolver into global common
179         blocks, so that I can move the computation of stresses etc into
180         seaice_lsr (saves coding but may break the adjoint).
181     - replace more hardwired parameters by runtime parameters
182     - add ice masks that mask the rhs of the implicit solvers where there
183       is no ice (commented out in seaice_dynsolver, because i am not sure
184       if this works properly), eventually this should replace the clipping
185       of ice velocities in seaice_dynsolver to +/-40cm/s.
186    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
187      include it only where its needed
188    o move balancing of fluxes before the call of external_forcing_surf
189    o seaice:
190      - correct units of turning angles (now they are really in degrees)
191      - move computation of GWATX/Y out of main routine into dynsolver
192      - initialize GWATX/Y in seaice_init
193    o Apply mask on Fresh-Water flux (needed for SSH forcing).
194      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
195    o seaice: add runtime flags for turning angles (default to zero)
196    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
197      and trend from exf forcing and ctrl control adjustments
198    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
199      (since checkpoint57x_post)
200    o change the default rotation period to 86164.s = the Earth rotation
201    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
202      and based on a reference stratification. Tested within hs94.cs-32x32x5.
203    o seaice advection: add code for choosing between the default (2nd order
204      central differences) and multiDim advection schemes provided by
205      pkg/generic_advdiff
206    o seaice:
207      - removed all references to SEAICE_GRID.h fields from
208        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
209        (cubed-sphere configuration will change a little)
210      - grid computations in seaice_init are obsolete now.
211      - cleaned up code a little so that is easier to read (hopefully).
212      - added new (better?) discretizations of default advection and diffusion
213        (turn on with SEAICEuseFluxForm)
214      - replace 1 in 3d global fields by kSurface in growth.F
215      
216    checkpoint58a_post
217    o seaice:
218      - bug fix in advect.F
219    o shelfice:
220      - separate shelfice load anomaly from pload (breaks with time
221        dependent forcing), => introduce constant field shelficeLoadAnomaly.
222        Its default is 0., but it may be computed more cleverly from (unknown)
223        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
224        done offline. A good approximation of the pressure load anomaly is
225        necessary to avoid large initial adjustment processes underneath
226        deep-reaching shelfice.
227      - small fix in ISOMIP shelfice_thermodynamics
228      - add more sophisticated thermodynamics of Hellmer (1989), this is
229        now the default
230      - give a few constants more intuitive names
231    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
232      if bulk formulae are used in long integration (especially EmPmR). Turn
233      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
234      if balancePrintMean, the imbalance that is substracted is printed to
235      STDOUT.
236    o fix bug (typo) in obcs_apply_eta.F
237    o add a new package shelfice which enables us to model the circulation
238      underneath shelf-ice with draughts of hundreds of meters.
239     - works
240     - to do: + include improved thermodynamics
241              + check whether kSurfC (from model/inc/SURFACE.h) can be used
242                instead of new field kTopC
243              + can we use topoFile, Ro_surf and existing code in ini_depth.F
244                instead of new field R_shelfIce and new code in ini_depth.F
245                and ini_mask_etc.F?
246              + adjust vertical mixing schemes?
247    o seaice pkg:
248     - add a cpp-flag to include a simple formula for a salinity dependent
249       freezing point of sea water at the surface
250     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
251       meridional stresses are now different (and hopefully correct)
252    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
253       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
254       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
255    o pkg/diagnostics: add options and parameters for regional-statistics
256       diagnostics ; define regions by reading a region-mask from a file
257       (might add other options later)
258    o pkg/bulk_force:
259     - add option and parameters to use AIM surface-flux formulae.
260     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
261       others forcing fields (defined in PARM05, parameter file "data") are loaded
262       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
263     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
264     - use the right EXCH call for uwind,vwind (to work on CS-grid).
265     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
266       and parameters (note: calcWindStress replaces .NOT.readwindstress).
267     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
268    
269    checkpoint58
270    o add "--embed-source" option to genmake2 which, when the supporting
271      tools can be compiled (as determined by genmake2) will turn on the
272      embed_files package which then embeds the entire MITgcm source code
273      (*.[fFhc] + Makefile) used for the build within the executable
274      - requested by CNH but off by default
275      - adds a paltry <9MB to the mitgcmuv executable in most cases
276      - only writes the output when useEMBEDSRC in eedata is true
277    o clean up 3-dim. relaxation codes:
278      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
279      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
280      * Thanks to Tom Haine for testing!
281    
282    checkpoint57z_post
283    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
284      affects output (@ truncation level) of exp. plume_on_slope ; updated.
285    o fix the pickup behavior for obcs in combination with ptracers
286    o fix a bug in ptracers_external_fields_load
287    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
288      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
289    o transfered surface NH pressure to eta field (if exactConserv).
290    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
291         and update lab_sea output.txt file.
292    o completing 3-dim. relaxation code: additional term
293         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
294      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
295      * At compile time, in "EXF_OPTIONS.h" set
296          #define  ALLOW_CLIMTEMP_RELAXATION
297          #define  ALLOW_CLIMSALT_RELAXATION
298      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
299          tauThetaClimRelax3Dim = 15552000.0,
300          tauSaltClimRelax3Dim  = 15552000.0,
301      * 3 cases:
302          1) Use a constant-in-time 3-dim. field
303          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
304          3) Real-time relax. to time-evolving prescribed field
305    o Adding Laplacian-type smoothness constraint on
306      initial and boundary (forcing) controls (ic, bc)
307      * enable at compile-time via
308        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
309      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
310      * Absolute scale somewhat unclear so far
311      * no area weighting was included since no other cost term does so far
312    
313    checkpoint57y_post
314    First step for a NLFS adjoint
315    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
316    o new init. routines for calc_r_star, calc_surf_dr
317    o still need to deal with ini_masks_etc
318    o testreport seemed happy
319    checkpoint57y_pre
320    
321    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
322    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
323    o add new offset feature to offline pkg (plus minor cleanup)
324    o cfc fixes for final year of integration
325    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
326      be in GCHEM_OPTIONS).
327    
328    checkpoint57x_post
329    o fix testreport Pb in multiple test experiment.
330    o cleanup our namelist syntax in verification:
331      - make it more F95 standards compliant (some work still needed)
332      - allows the vast majority of our tests to work with gfortran
333    o Non-Hydrostatic:
334     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
335     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
336    o Allow to apply AB on T,S rather than on AB(gT,gS):
337     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
338     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
339       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
340     - need a "clever" read_pickup to restart from the other AB formulation
341    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
342    o remove some unused variables (reduces number of compiler warnings)
343    o adjoint
344      * Disable useVariableViscosity for adjoint for time being
345        (there are a number of extensive recomputations)
346      * Initialize certain variables needed for adjoint
347    
348    checkpoint57w_post
349    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
350                 fix the singleCpuIO RS version of MDSWRITEFIELD
351       and add a WARNING if using globalFiles=T with multi-processors.
352    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
353      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
354    o tracer advection scheme:
355      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
356       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
357       was not very convenient).
358      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
359       (further tests needed for the implicit DST & Flux-Limiter schemes).
360    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
361      and sRef for convenience, handy, when you want to initialize
362      ptracers in a large domain with a constant non-zero value. Also,
363      untangle ptracers_init.F a little.
364    
365    checkpoint57v_post
366    o change dome exp. to use variable viscosity in side-drag terms.
367    o remove all the files from the cfc_offline test since they are now
368      incorporated into tutorial_cfc_offline which has been producing
369      identical results for a few days of testing
370    o add new parameter: sideDragFactor to enable half-slip-side BC
371      and change side-drag S/R to use viscosity from mom_calc_visc
372      (can switch back by setting sideDragFactor=0.); affects results at
373      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
374       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
375    o vorticity & strain are now computed without masking, to account for
376      no-slip-side BC in variable viscosity calculation ; mask is applied
377      anyway later on, before computing advection/coriolis terms.
378    o modify exp4 to test new obcs support for reading from external files
379      and for passive tracers
380    o fix behavior of ptracers_monitor when monitor output is written to a
381      netcdf-file; still not independent of monitor.F (writes in the same
382      file).
383    o change default value of tRef (put a uniform, meaningful value for ocean
384      & atmos) and initialize sRef (was missing, as Martin mentioned).
385    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
386      to be proportional to enstrophy dissipation length.  Thus,
387       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
388      This is now consistent with Smagorinsky and with the manual.
389    
390    checkpoint57u_post
391    o OBCS and PTRACERS: add open boundary support for passive tracers
392      - either use homogenous (pseudo) v.Neumann conditions or prescribe
393        OB-values from file; this is not different from the way theta and salinity
394        are treated
395      - however, Orlanski-radiation conditions are not supported, and the model
396        will stop if you use pTracers and Orlanski at the same time.
397      - beefed up the rountine obcs_external_fields_load: now only those open
398        boundary values are overwritten with values from files for which there
399        are really files, otherwise the OB-fields remain untouched. This makes
400        it possible to use different OBs at different ends of the domain (as
401        with EXF)
402    o reduce number of exch calls in shap_filt (s2).
403    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
404      truncation level) 4/5 MLAdjust test results (11&12 digits match).
405    
406    checkpoint57t_post
407    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
408    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
409      same truncation, independent of the face number: affects affects several
410      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
411    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
412      note that biharmonic viscosity + no-slip was not tested in any experiment.
413    o fix bug in non-linear free-surf side-drag ; generate new output for
414      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
415    o make mnc honor the writeBinaryPrec flag for most kinds of output
416    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
417    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
418      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
419    o add brackets in multi-terms sum to get same truncation, independent of
420      the face number (manage to get exactly same value of gU,gV at the cs-edge)
421      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
422    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
423      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
424      a maximum grid-scale Reynolds number.  Also, changes all length calculations
425      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
426      Suggested values of viscosity parameters found in mom_calc_visc.
427      Many new viscosity diagnostics available.
428    
429    checkpoint57s_post
430    o Add clearing-house for viscosity calculations, mom_calc_visc and
431      correct numerous bugs in LeithD and Smagorinsky discretizations.  
432      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
433      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
434      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
435      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
436      The Strain-Tension form is now called with useStrainTensonVisc=.true.
437      ViscAhStrain and viscAhTension are now retired.
438    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
439    o In response to JMC's bug report, genmake2 now ignores any soft-links
440      that it finds in the *current* directory when searching for files.
441      Soft-links found in any other source directories will still work as
442      they did before.
443    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
444      a C routine to unlimit the stack size
445    o mnc-ify pkg/aim snapshot vars
446    o mnc-ify pkg/land as requested by Daniel
447    o various changes to mnc including:
448      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
449      - output can now be grouped so that all files within a group
450          change the ITER portion of their names in lock-step together
451      - can now read ("global") PER-FACE (in addition to PER-TILE) files
452          and works with both EXCH1 and EXCH2 (but needs more testing)
453      - writing works for all verification test cases w/ g77 on Linux
454    
455    checkpoint57r_post
456    o make MNC variable initialization happen earlier
457    o add diagnostics for (almost) each term of the momentum Eq.
458    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
459    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
460    o remove MINIMAL_TAVE_OUTPUT option ;
461      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
462    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
463      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
464    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
465    o add time-dependent SST, SSS control
466    o cost terms in ecco/ modularized (new cost_generic.F)
467    o cost_averages routines are modularized (new cost_averagesgeneric.F)
468    o new infrastructure for seaice model vs. obs misfits in seaice/
469      * driver from the_main_loop.F is seaice_cost_driver.F
470      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
471      * gradient check in Exp. 6a of natl_box_adjoint/
472    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
473      (see README file)
474    
475    checkpoint57q_post
476    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
477    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
478      - bug was reported by Jean-Michel and Ian Fenty
479    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
480      update exp. cpl_aim+ocn output.
481    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
482      Needed for high-res. runs with large global files
483      to be able to limit tapelev size
484    o Changed some tests for adjoint:
485      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
486      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
487      * global_ocean.90x40x15/ back to default 3-level checkpointing
488    o Modifications to enable scripted COMMON to MODULE conversion
489      * verification/OpenAD/code/ has necessary scripts and description;
490      * converts, compiles and runs successfully;
491    
492    checkpoint57p_post
493    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
494    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
495      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
496    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
497    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
498      (was already the case for dissipation with mom_vecinv,
499       and also the case for grad.PhiHyd when staggered-timeStep)
500      This will allow to put dissipation out-off the AB time-stepping.
501     Unfortunately, affects truncation error. Update output of exp. that "fails"
502      (cg2d matching number) and leave the others for later: front_relax(10),
503      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
504      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
505    
506    checkpoint57o_post
507    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
508      (2) its ready to be documented during the 20050801 DocFest
509    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
510      for ideal_2D_oce and lab_sea on linux_ia32_g77
511    o set to #undef CTRL_SET_OLD_MAXCVARS_30
512      in global1x1_tot/code_seaice_adj to access indices 32, 33
513      (worth another tag)
514    
515    checkpoint57n_post
516    o adding precip control xx_precip 32
517    o adding swflux control xx_swflux 33
518    o Replacing 10 forcing penalty cost routines by 1 generic.
519    o Implementing partitioning in time-mean and variable adjustment
520      for atmos. state.
521    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
522    o in natl_box_adjoint:
523      * updated exp 1 to 10
524        (but does not have time-mean vs. variable split results yet)
525    o updated global1x1/*_seaice_adj/
526      to incorporate latest changes
527    o enable useSingleCpuIO for mdsio vector routines
528      (applies in particular to tapelev I/O)
529    o removed inefficient K-loop in all active_file*control*.F
530    
531    checkpoint57m_post
532    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
533      and advect_cs (use EXCH-2 and standard cs-32 grid files).
534    o pkg/exch2: filling of face-corner halo regions is optional
535      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
536    
537    checkpoint57l_post
538     tag before updating tutorials (pre-release-2)
539    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
540       for output and interpolation of input fields onto model grid)
541    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
542       Affects results of exp. rotating_tank ; update output.txt.
543    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
544          and taking the square quantity and/or using a fraction-weight field.
545    o fix aim_diagnostics_init.F mate numbers.
546    o add mnc output capability to diagnostics/diagstat and update
547      our cvsignore files for the ACSII output generated
548    
549    checkpoint57k_post
550    o lab_sea now uses diagnostics package and provides a suite of
551      new EXF diagnostics output.
552    
553    checkpoint57j_post
554    o exf
555      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
556        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
557        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
558      * extended diagnostics output
559        - now includes all EXF variables
560        - hs, hl moved to common block
561        - separate S/R for diagnostics, called after ctrl vector is added
562        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
563        - EXFqnet contains true Qnet (i.e. includes qsw)
564      * updated verif. lab_sea, global_with_exf
565      * Rearranging hflux (exf_mapfields -> exf_getforcing)
566        to ensure that diagnostics sees a true EXFqnet
567    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
568    o diagnostics pkg: change pointers so that 1 diagnostic can be used
569      several times with different frequencies.
570    o mnc-ify the thsice package as requested by Daniel Enderton
571      - the monitor--MNC output needs work
572      - many attributes need to be added (most are currently blank)
573    o mnc-ify theaim_v23 package as requested by Daniel Enderton
574      - many attributes need to be added (most are currently blank)
575    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
576    o add Sadourny like discretization to the 4th.O vorticity advection scheme
577    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
578      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
579         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
580    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
581     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
582    
583    checkpoint57i_post
584    o Diagnostics package was changed: diagnostic allocation is now deactivated
585      by setting an empty file name in the namelist (used to be by setting 0 frequency)
586    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
587      add 1rst Order upwind vertical Shear.
588    o add a quick fix for A/B checkpointing in OFFLINE mode
589    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
590      end-run around the C/Fortran linking horror in eesup/src/timers.F
591    o added pkg/runclock: allows user to terminate run based on wall clock
592    o added non-hydrostatic scaling parameter: nh_am2
593    o pkg/my82: futile attempt to make results compiler-independent by adding
594      some "_d 0", etc. no effect.
595    o for mnc output, fill the 'T' coordinate var with myTime and create a
596      separate 'iter' variable for iteration count
597    o pkg/diagnostics:
598      add new capability: output of Global/Regional & per-level statistics ;
599      tested against monitor output (including land & thSIce) on various exp.
600    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
601    
602    checkpoint57h_done
603      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
604      data.diagnostics, data.gchem, data.ptracers) is done.
605    
606    o pkg/diagnostics: prepare for Global/Regional statistics.
607      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
608    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
609      and rename it: DIFFERENT_MULTIPLE
610    
611    checkpoint57h_post
612    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
613    o pkg/diagnostics: change output frequency, now in seconds (instead
614      of Nb of iterations). This requires to change data.diagnostics.
615    checkpoint57h_pre
616    
617    o in mnc, let the user create the output dir if both mnc_outdir_date
618      and mnc_outdir_num are false
619    o add fflags() to pkg/diagnostics which allows one to specify, on a
620      per-file basis, the file precision [default behavior is unchanged]
621    o added diagnostics to pkg/kpp, including computation of mixed layer
622      depth based on a temperature/density criterion
623    o updated verification/natl_box to test the new pkg/kpp diagnostics
624    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
625    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
626    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
627      not mnc -- this mistake was found by JMC and is now corrected
628    
629    checkpoint57g_post
630    o add Adams-Bashforth 3rd Order time stepping:
631      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
632      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
633    checkpoint57g_pre
634    
635    o make lambda[Theta,Salt]ClimRelax spatially varying
636      (default remains spatially uniform constant based on tau)
637    o added new control variables
638      * init. uVel, vVel, etanN
639      * lambda[Theta,Salt]ClimRelax
640    o separate masks used for ctrl_pack/unpack 'from write_grid' output
641      (suggested by G. Forget)
642    
643    checkpoint57f_post
644    o add parameter "baseTime" = model base time = time at iteration zero
645      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
646      account for baseTime shift
647    o move Coriolis arrays from PARAMS.h to GRID.h
648    checkpoint57f_pre
649    
650    o mnc-ifying the seaice package
651    o introduced an alternative length scale calculation for use in the limiting
652      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
653    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
654    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
655      as well as grad(vort3).  Made it compatible with both approximate form
656      for the cubed sphere and full form of these gradients.  Added flag
657      useFullLeith to select between approximate and full form.  
658    o add "d0" in getcon.F to reduce differences between compilers/platforms
659      update output.txt of exp. fizhi-gridalt-hs
660    o change port_rand funtion to allow to set the seed.
661    o fix obscure MNC bug involving conversion between reals and integers
662      - it caused no problems with certain (eg. gcc, ifc) compilers but the
663        new version is now more standards-compliant
664    o adjoint-related modifications
665      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
666      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
667      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
668    
669    checkpoint57e_post
670    o Adding eddy stress controls a la Ferreira et al.
671    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
672    
673    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
674      update output.txt of exp. fizhi-gridalt-hs
675    o add more "Z" dimensions and associated coordinate vars to MNC
676    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
677    o parameter calendarDumps: when set, approximate months (30-31 days) and years
678      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
679      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
680      months and years.  Requires pkg/cal.
681    o diagnostics: add pickup functionality
682      - off by default for backwards compatibility
683      - current version only uses MDSIO -- MNC will be added
684    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
685    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
686    
687    checkpoint57d_post
688    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
689    o modify verification/ideal_2D_oce so that it tests the creation of mnc
690      output from the diagnostics package
691    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
692    o make genmake2 more portable by using ".$FS" instead of ".f" for more
693      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
694    o add coordinate variables to the MNC output from the diagnostics package
695    o change MNC-flags default value: true when useMNC=TRUE
696    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
697      the ability (off by default) to read the grid information using MNC
698    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
699    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
700    o do snap-shot diagnostics at the middle of the time-interval (instead of
701      at the end).
702    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
703      new test for AIM with thSIce + slab-ocean
704    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
705    o move state variable diagnostics to the beginning of the time step ;
706      (note: still needs some work specially for snap-shot diagnostics)
707      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
708    
709    checkpoint57c_post
710    o Change testing option (-ieee) to get closer agreement between g77 & ifort
711    o generate new output.txt files on faulks with g77 & the new -ieee option
712    checkpoint57c_pre
713    
714    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
715      update output.txt of exp. global_ocean.90x40x15
716    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
717      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
718    o add saltFlux(+File) forcing capability with periodicExternalForcing
719    o allow to use pkg diagnostics for GM-Redi & ThSIce output
720    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
721    o improvements for the MNC output from DIAGNOSTICS:
722      - correct handling of the unlimitied dimension
723      - all dims now have associated coordinate variables
724      - variables located at U, V, and Corner ("Z") points are now written
725        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
726        *all* data points are output
727    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
728    o added pkg/seaice/seaice_monitor.F
729    o mdsio_readfield.F can now read files visible only to master MPI process.
730    o pkg/seaice: some test code for ice-modified ocean stress
731    o exf_getffields interpolation defaults to bilinear for all scalar forcing
732      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
733      spurious negative numbers for precipitation and humidity.  Will cause
734      some small numerical differences for integrations using pkg/exf/exf_interp.F.
735    o pkg/ctrl/
736      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
737        May be enabled via doPackDiag
738      *  introduce z-scaling of
739         + gradient (doZscalePack) and
740         + control (doZscaleUnpack)
741    o pkg/mdsio/
742      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
743      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
744    
745    checkpoint57b_post
746    o simplify options in diagnostics_fill arguments (remove weird combinations)
747    o fix MNC coordinate variables so that they now contain per-face index
748      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
749      general, EXCH2 grids are only aligned to a "local" coordinate system
750    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
751    o Implement instantaneous output within pkg diagnostics:
752      setting a negative frequency in data.diagnostics produces
753     "snap-shot" output (as opposed to time-average if freq > 0)
754    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
755      NOTE: change ptracer diagnostics name: use 2 characters to work with
756            more than 9 tracers. Add also diagnostics of advect & diffus flux.
757    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
758      becomes the coordinate variable for the 'T' dimension
759    o add CF-style coordinate variables to MNC
760      - just a first cut:  numbers are meaningless on the cubesphere and
761        missing along the T axis but otherwise it works!
762    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
763    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
764    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
765      this is based directly on what the model compute, so that the content of
766      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
767    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
768    o clean up build options files for SunOS, in particular
769      - remove -traditional from xmakedepend
770      - change -xarch=v9 to -xarch=native for f77
771      - restore use of make (not gmake)
772      - add CC=gcc if using g77
773    o changes per discussion of AM, JMC, & EH3 today:
774      - move redundant "grid" variables out of "state" -- in preparation of
775        creating proper CF-style coordinate variables and in recognition
776        that any/all grid variables can be easily copied (eg. w/NCO) from
777        the grid files into any of the other NetCDF files
778      - *always* output grid variables with MDSIO (this will eventually be
779        changed)
780      - output MNC grid file if useMNC is true
781    o every instance of _END_MASTER() has been found and replaced with
782      _END_MASTER( myThid ) in order to satisfy certain picky Sun
783      preprocessors
784    o re-arrange diagnostics pkg initialisation:
785     - allow each package to extend the available diagnostics list
786     - add some checking and fix small problems (multi-threaded, ...)
787     - new S/R diagnostics_fill (replace fill_diagnostics):
788       look through the short list of active diag. (instead of the long list)
789       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
790    
791    checkpoint57a_post
792    o this set of changes restores TAMC compatibility
793      tested for global_ocean.90x40x15 adjoint on trough
794      (what a pain)
795    
796    checkpoint57a_pre
797    o some modifs in tools/build_options for sunos
798    o call ctrl_pack for ctrl at end for optimcycle=0
799    
800    checkpoint57
801    o add horizontal bi-harmonic viscosity for vertical velocity
802      - new parameter viscA4W (defaults to viscA4)
803      - affects only non-hydrostatic code
804      - to be done: no-slip lateral boundary conditions
805    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
806    o implement Implicit Vertical advection for pTracers
807    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
808      (implemented also for implicit vertical diffusion & advection)
809    o OBCS: extend application of tracer open boundary conditions
810      to a strip beyond the boundary of width Olx/Oly
811    o add call monitor to TAF set of required calls (flow directives)
812      and include in natl_box_adjoint
813    o untangle a few ifdefs related to cost, ctrl, autodiff
814      untangel a few ALLOW_ECCO_OPTIMIZATION
815    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
816      (theta2, salt2 in ecco_cost_weights)
817    
818    checkpoint56c_post
819    o OBCS as control variables
820      - update ctrl_ad_diff.list, obcs_ad_diff.list
821      - remove balance of obcs controls from default
822      - fix index bug nobcs in ctrl_init
823      - fix dummy fields filen in ctrl_pack
824      - add dummy weights for obcs
825    o lsopt: comment out fort.94 output
826    o optim:
827      - remove unnecessary header files
828      - adjusted namelists
829      - add xerbla.F to Makefile
830    o exf:
831      - multiple modifications of exf_check_range
832      - unit change in exf_init_runoff from [m/year] to [m/s]
833    o mdsio:
834      - i/o-vector change debugLevel from debLevA to debLevB
835    
836    checkpoint56b_post
837    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
838      is called from DO_THE_MODEL_IO
839      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
840      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
841      - clean up PTRACERS_WRITE_TIMEAVE a little
842    o add another verification experiment that tests both the cfc-pkg and
843      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
844      reactive tendencies treated inline with regular timestepping
845    o testreport previously did a lousy job of comparing small numbers, so
846      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
847      implemented in the little c-progam tmp_cmpnum.c which is embedded in
848      testreport.
849    o ptracers_monitor: bug fix for MPI
850    
851    checkpoint56a_post
852    o GCHEM: finish reorganizating the package
853      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
854        (introduces another 3D-array for each passive tracer, but only if
855        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
856        gchemTendency is not needed because the timestep is done separately)
857      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
858      - GCHEM is now---more or less cleanly---separate from PTRACERS
859      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
860        so clear to me how that should be done in a general way.
861    o CFC: improve formatting of output in CFC_ATMOS
862    o PTRACERS:
863      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
864        that ALL experiments with ptracers enable can be checked. This makes
865        GCHEM_MONITOR obsolete.
866      - include a runtime parameter PTRACERS_monitorFreq that defaults to
867        monitorFreq
868      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
869    o add PTRACERS (PTR0[1-5]) to testreport output
870    o exf_check_range:
871      * default changed to .TRUE.
872      * will check values for niter0 if debLevA, every timestep if debLevB
873      * STOP in exf_check_range if 'out of range'
874      * range chosen generous to allow for potential extema
875      TBD: a version with stricter range
876           permitted range would be runtime parameters
877    o GMredi:
878      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
879      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
880      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
881    o GCHEM:
882      - move call to GCHEM_FORCING_SEP, so that it is now called before
883        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
884      - introduced a useGCHEM runtime flag and applied it everywhere.
885      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
886        this flag is now only visible within GCHEM-pkg routines.
887      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
888        be replaced by a 3D array that is computed before thermodynamics; for
889        this, the tracer ID iTracer had to be included into the parameter list
890        of ptracers_forcing
891      - set up forward_step to call gchem_forcing, that will replace
892        gchem_forcing_int in ptracers_forcing
893      - cleaning up
894    o small cleaning of exch2: remove files that are also in eesupp/src
895    
896    checkpoint56
897    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
898    o mnc: cleanup "full" files--fixes out-of-memory problem
899    o ECCO-GODAE
900      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
901      * fully merged and updated from SIO code
902        windstress sign change affects
903        - exf_inscal_[u/v]stress
904        - sign of xx_tau[u/v] adjustments
905        - signs in cost_scat
906      * ctrl_get_gen: avoid update of tau[u/v] for first few days
907      * natl_box_adjoint updated and compressed
908      * 2-level checkpoint switch added
909        (tested in EXP. 1 of natl_box_adjoint)
910      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
911    o SVD
912      * first complete, non-hacked version for SVD calculations
913      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
914        performed via direct access files admtlm_vector.it????
915        (via ctrl_[un]pack)
916      * optimcycle is used for ARPACK iteration counter
917        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
918      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
919        and add linear transforms where necessary
920      * controls are initial/final SST, SSS (can be extended; need to check
921        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
922    o mdsio: filename info to both stderr, stdout
923    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
924      from sign change
925    
926    checkpoint55j_post
927    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
928      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
929    o add consistent build directories and .cvsignore files to verification
930    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
931    o make all subroutines 30 or less characters in length for certain older
932      compilers to work (a thorough search only turns up two routines in
933      pkg/ptracers)
934    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
935      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
936    
937    checkpoint55i_post
938    o change arrays for total vertical diffusivity (2.D if explicit,
939      3.D if implicit) ; each ptracer uses its own background value.
940    o added mnc/NetCDF output capability to ocn_compon_interf
941      - added bits to verification/cpl_aim+ocn so that it can run on
942        ITRDA and other clusters without the mpirun "-wd" option
943    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
944      configuration
945    o give MNC the ability to create additional files rather than
946      exceeding a specified file size limit "MNC_MAX_FILESIZE"
947      - the default is just less than 2GB which is a practical limit
948        on many systems
949    o Compute the non-local term using either KPP vertical diffusivity (=default)
950       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
951    
952    checkpoint55h_post
953    o add verification test "vermix"
954    o remove all the *_ioinc flags and replace with the single global
955      outputTypesInclusive flag
956    o allow to set a vertical profile of vertical diffusivity for T & S
957    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
958    o useMNC moved from data.mnc to data.pkg
959    
960    checkpoint55g_post
961    o Renaming carbon AD experiments to comply with testreport conventions
962    o Updating adjoint of Held-Suarez hs94.1x64x5
963    o Fixing directives for non-ECCO forward_step, after ECCO directives
964      have been fixed to avoid recomp. of do_oceanic_phys
965      Works well for global_ocean.90x40x15,
966      but recomp. issue remains for carbon
967    o Updating adjoint output for natl_box_adjoint after
968      pkg/ecco has been modified (see taga c55d_post)
969    
970    checkpoint55f_post
971    o rename to timeave_init_fixed
972    
973    checkpoint55e_post
974    o some delicate re-shuffle of store directives to avoid one
975      extra call of do_oceanic_physics
976      affects ecco_the_main_loop.F, do_oceanic_physics.F
977      checkpoint_lev1_directives.h
978    o NB: this may break global_ocean adjoint temporarily,
979      but it is clear how to fix it. Will do later, need this now.
980    
981    checkpoint55d_post
982    o ECCO specific cost function terms (up-to-date with 1x1 runs)
983    o ecco_cost_weights is modified to 1x1 runs
984    o modifs to allow observations to be read in as
985      single file or yearly files
986    o enable to read exf forcing fields as either
987      single file or yearly files (flag useExfYearlyFields)
988    checkpoint55d_pre
989    
990    o switch between 2-level and 3-level checkpointing
991    o add ability of MNC to write local and "partial" (eg. 2D slices where
992      the full 3D field is never actually stored) arrays to NetCDF files
993      with the correct (that is, the complete multi-dimensional) set of
994      array indicies
995      - used in mom_vecinv() to write the diagFreq output
996      - tested (demonstrated) in verification/aim.5l_cs
997    o further mnc-ification
998      - add verification/lab_sea to the list with mnc setups
999      - fix undefined mnc v-names in cd_code
1000      - add kpp to mnc output (both snapshot and timeave)
1001    o non-hydrostatic code
1002      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1003        in calc_gw.F
1004      - defaults to viscAh
1005      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1006        friction or Leith) in non-hydrostatic mode, as long as there is
1007        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1008    o pkg/cost
1009      extend simple cost functions to treat time mean quantities
1010      (T,U,V) via cost_accumulate_state from cost_tile
1011    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1012        be 2 times larger than the minimum size the advection scheme requires.
1013        now get a perfect conservation of salt in advect_cs test-exp (updated)
1014    o GGL90 (Gaspar's TKE mixed layer)
1015      - add horizontal diffusion of TKE, requires exchanges in
1016        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1017        default. In OPA there is no horizontal diffusion of TKE but the
1018        mixing coefficients are computed from a horizontal average of TKE of
1019        6 points or so. I think that diffusion has a little more physical
1020        justification.
1021      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1022        was in vain)
1023      - mask tke-variable in ggl90_init
1024    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1025    o fix biharmonic diffusion on CS-grid.
1026    o more obcs stuff
1027      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1028        for reading boundary values. This routine is called from
1029        obcs_prescribe_read
1030      - updated obcs_check
1031      - changed sponge layer relaxation parameter units for days to seconds
1032      - turned off sponge layer by default
1033      - changed argument list of OBCS_CALC to myTime+deltaTclock
1034      - fixed about 35 bugs in obcs_external_fields_load
1035    
1036    checkpoint55c_post
1037    o obcs stuff
1038      - new runtime flags useOBCSprescribe, useOBCSbalance
1039      - re-arranged obcs_calc
1040      - moved exf_getobcs to obcs_prescibe_read
1041        obcs_prescibe_read is called after ORLANSKI stuff
1042        and independent of it (executable can contain all).
1043      - updated obcs_check
1044      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1045        These may be necessary only if tangential velocities are
1046        prescribed at OB, not sure, needs testing.
1047    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1048      which simplifies the calls and passes the ifc check-bounds test
1049    
1050    checkpoint55b_post
1051    o add a 2D scalar, Z location, exchange_2 routine.
1052    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1053      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1054      affects advect_cs results (for the wrong reason): update output.txt
1055    o use a more standard discretization for biharmonic viscosity ;
1056     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1057      affects results of dome set-up: update output.txt
1058    o fix gad_advection.F (CubedSphere part), back to version 1.23
1059    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1060    
1061    checkpoint55a_post
1062    o merged code to
1063      * prescribe/read time-dependent open boundaries
1064        (works in conjunction with exf, cal)
1065      * sponge layer code for open boundaries
1066      * each boundary N/S/E/W now has its own CPP option
1067        (healthy for the adjoint)
1068    
1069    checkpoint55
1070    o up-to-date adjoint of previous breaks
1071      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1072      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1073      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1074      - carbon: * remove tr1-related adjoint verification
1075                * add ptracer as control variable
1076    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1077      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1078    
1079    checkpoint54f_post
1080    o in verification/carbin/ remove experiment related to
1081      ALLOW_PASSIVE_TRACER (array tr1 etc)
1082      code_ad/ input_ad/ results_ad
1083    
1084    o add two new packages
1085      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1086        + subject to optimization (memory)
1087      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1088        + subject to reordering (many GOTOs in the original code)
1089        + so far opps is called for every (i,j) point, and then operates in
1090          the vertical; one may want to reorder the scheme in order operate in
1091          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1092          fields)
1093    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1094      - all verification tests compile and run with linux_ia32_g77
1095      - defaults are compatible with current input files--nothing
1096        should change if you were not previously using MNC
1097      - MNC output has been added in numerous places (eg. timeave)
1098        but there are still a few writes not yet do-able with MNC
1099        (this is in progress)
1100      - flags now allow for either/or/both use of MDSIO and MNC and
1101        documentation will soon follow
1102      - numerous small formatting cleanups for ProTeX
1103    o add version info (via BUILD_INFO.h) to MNC and stdout
1104    
1105    checkpoint54e_post
1106    o add two new packages
1107      - pp81 (Packanowski and Philander, 1981), Richardson number and
1108        stratification dependent mixing
1109      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1110      - these scheme operate in a similar manner as KPP (without ghat, of
1111        course), however there is only one diffusivity that is used for both
1112        temperature and salinity (and passive tracers)ç
1113    o add offline package
1114    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1115      provided by Stephanie Dutkiewicz
1116    o genmake2: add ability to search for C compilers and cleanup test output
1117      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1118    
1119    checkpoint54d_post
1120    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1121    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1122      leading to additional shift by 5 days each year of integration
1123       (i.e. leading to considerable offset over the years)
1124    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1125    o start with no AB and no initial filtering (staggerTimeStep):
1126      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1127    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1128      (external loading & cpl import/export stay in forward_step.F)
1129    o update coupling interface to work with new staggerTimeStep
1130    o change MDSIO ptracers_pickup.
1131    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1132    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1133    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1134    
1135    checkpoint54c_post
1136    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1137      this affects (truncation error) output.txt of test-exp:
1138       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1139    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1140    o change Qnet to always be the net heat flux, (+upward).
1141      affects (truncation error) output of natl_box exp.: updated
1142    o define the max number of passive tracers in PTRACERS_SIZE.h
1143    o start to test mnc routinely in exp0
1144    o add sea-ice loading (sIceLoad) as a new forcing field.
1145    
1146    checkpoint54b_post
1147    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1148       impressive on Altix and Opteron systems)
1149    o diagnostics can now write NetCDF files through the mnc package
1150    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1151    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1152    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1153      affects (truncation error) output of lab_sea & natl_box exp.: updated
1154    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1155    
1156    checkpoint54a_post
1157    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1158    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1159    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1160    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1161      + internal_wave (shift in writing cg2d_ini_res)
1162    checkpoint54a_pre
1163    
1164    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1165      - modified verification/lab_sea and natl_box_adjoint accordingly
1166    
1167    checkpoint54
1168    checkpoint53g_post
1169    o prepare splitting of thermodynamics: store convect.counter in common block
1170    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1171      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1172    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1173    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1174    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1175    o restore adjointability
1176    
1177    checkpoint53f_post
1178    o modifications that affect AIM experiment results (update output.txt):
1179      - no advection of S at top interface Nr (pkg/generic_advdiff)
1180      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1181    o AIM pkg:
1182      - include stability function into surf.Flux derivative relative to Tsurf
1183      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1184    
1185    checkpoint53e_post
1186    o merged cylindrical coord configuration
1187    o added rotating_tank experiment
1188    checkpoint53e_pre
1189    
1190    checkpoint53d_post
1191    o faulks upgraded: re-generate output.txt that have changed:
1192       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1193    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1194    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1195    o added Sadourny discretization of Coriolis
1196      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1197      - re-enabled use of omega3 (useAbsVorticity)
1198    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1199      vector-invariant equations
1200      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1201    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1202      hopefully without new bugs
1203      - still to do: biharmonic friction for non-hydrostatic w
1204    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1205    o regenerated output for global_ocean_ebm (using -ieee)
1206    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1207      of mom_common/
1208      - simple re-arrangement of instructions within computing loop
1209    checkpoint53d_pre
1210    
1211    checkpoint53c_post
1212    o new version of coupler for AIM+thSIce and Ocean models
1213     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1214     - land: change Evaporation of snow
1215     - aim with thSIce: fix bug in snow-precip.
1216    o changes to calc_gw.F
1217     - bug fix for w^2 term near the bottom boundary
1218     - (hopefully) improve the lateral slip boundary condtions for use with
1219        partial/looped cells
1220      - because the bug fix changes two verification experiments anyway (exp5
1221        and plume on slope), change the lateral boundary condition from half slip
1222        to the value of no_slip_sides
1223    o ebm package wasnt quite up to the parallel task. Fixed that.
1224    o Adjoint of EBM package + verification
1225      * TLM OK
1226      * ADM not sufficient accuracy yet (needs further testing)
1227    
1228    checkpoint53b_post
1229    o Commiting new energy balance model to repository
1230      * package is pkg/ebm
1231      * verif. is verification/global_ocean_ebm
1232      * references are in ebm_driver.F
1233    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1234    C        Global thermohaline circulation. Part I:
1235    C        Sensitivity to atmospheric moisture transport.
1236    C        J. Climate 12(1), 71-82
1237    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1238    C        Global thermohaline circulation. Part II:
1239    C        Sensitivity with interactive transport.
1240    C        J. Climate 12(1), 83-91
1241    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1242    C        Destabilization of the thermohaline circulation
1243    C        by atmospheric eddy transports.
1244    C        J. Climate 7(12), 1870-1882
1245    o Will need long integration testing.
1246    checkpoint53b_pre
1247    
1248    o created pkg/mom_common in preparation for variable viscosity code
1249    o renamed and split ini_mnc_io
1250    o pkg/land: only liquid water can diffuse or run-off
1251    o AIM using land: soil wetness availability account for snow
1252    o added printMapIncludesZeros to EEPARMS namelist
1253    
1254    checkpoint53a_post
1255    o restore TAMC compatiility for exf_constants.h
1256      (no usage of _d in .h)
1257    o Additional storing in KPP in an attempt to fix
1258      TAMC problem with adjoint of KPP code.
1259      (no success...)
1260      Identical code works fine with TAF.
1261    o Fixed verification/natl_box_adjoint experiments.
1262      Initial conditions for Experiments 4 and 5 are now
1263      set to "SEAICE_initialHEFF=0", which is more reasonable,
1264      and hence gives results closer to that of Experiment 2.
1265      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1266    
1267    checkpoint53
1268    o stable checkpoint with up to date adjoint
1269      TLM tests only run for 1st grdchk at the moment. Its unclear if
1270      this is a code problem or a problem with resetting code for g_
1271      variables that is being autogenerated wrong.
1272      Otherwise:
1273       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1274       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1275         are both still in chaos following their security messes.
1276    
1277    checkpoint52n_post
1278    o various build (mostly genmake2) changes including:
1279      - ability to build/run more easily within Cygwin and MacOS X
1280      - more complicated Makefiles with a stronger dependence on Gnu Make
1281    o pkg/seaice modifications
1282      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1283        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1284        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1285      - changed proxy for geostrophic velocity and updated
1286        verification/lab_sea/results/* accordingly
1287      - removed ADI dynamic solver from pkg/seaice
1288      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1289        they caused a segmentation fault under certain circumstances
1290      - removed unused field WATR
1291    o bug fix in exf-package:
1292      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1293         now reflect that.
1294    o small fixes in the cal-package:
1295      - set reference date to first of January for the 'model'-calendar
1296      - failing of cal_CheckDate in cal_FullDate now actually results in a
1297        warning
1298    o small modifications in exf-package to increase flexibility:
1299      - change climtempfreeze from a constant to a runtime parameter that
1300        is specified in data.exf_clim (default = -1.9)
1301      - introduce runtime parameter windstressmax (default = 2.0) that is
1302        specified in data.exf
1303    o fix in pkg/thsice:
1304      - update Evap (Tsf changes) to be consistent with Latent heat flux
1305      - maintain snow precipitation unchanged (even if Tsf >=0).
1306     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1307    
1308    checkpoint52m_post
1309    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1310      this does not change any of the results, because myIter=0 in swfrac always
1311      lead to jwtype=2 (the default anyway), but the call makes little sense
1312      as a default
1313    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1314    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1315      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1316    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1317    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1318    o extending useSingleCpuIO option to work with new exch2 I/O format
1319      - old-style, missing-tile I/O is still accessible by defining CPP
1320        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1321    o monitor package can write to NetCDF files and/or STDOUT
1322    o fix re-definition bug in MNC_GRID_INIT_ALL()
1323    o doc/api_reference added
1324      - a framework for building an API Reference Manual using all
1325        the "protex" comments embedded in the code
1326      - see pkg/generic_advdiff, pkg/mnc for examples
1327    o MNC:
1328      - make myThid the last argument for all subroutines
1329      - new default for the grid files: NO halos
1330      - add useMNC and other run-time flags
1331      - separate per-file-group handling of the unlimited dimension
1332      - early initialization of MNC w/ flags read at the eeboot stage
1333        and lookup tables set in initialize_fixed
1334      - write all MNC output to a freshly-created directory
1335    o thermodynamics sea-ice (thsice) is now tested with testreport.
1336    o test exp. advect_cs: use the standard cs32 grid ; update output.
1337    o Added functionality to grdchk:
1338      pick global i,j,k position (or nearest wet) where to perform check.
1339    
1340    checkpoint52l_post
1341    o new land formulation:
1342      a) use ground enthalpy as prognostic variable to ensure exact
1343         energy conservation.
1344      b) account for water temperature and for latent heat of freezing
1345         in all processes (rain, run-off, ground storage)
1346      c) compute surface and ground temperature implicitly.
1347    o aim_v23 modification for new land model:
1348      a) Treat separately land / ocean / sea-ice surface fluxes
1349         to allow implicit computation of land & sea-ice surface temp.
1350      b) add snow precipitation.
1351    checkpoint52l_pre
1352    
1353    o fix problem (when 1 tile is empty) in min/max monitor.
1354    o fix bug in timeAve (u,vZetatave in common block)
1355    o no restoring terms under ice for pkg/seaice
1356    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1357    o bug fix for pkg/seaice pickups
1358    o change MNC call locations and add coordinate attributes
1359    o mask vorticity at the corner ; affects global_ocean.cs output
1360    o fix ini_curvilinear_grid ; test CS experiments with mpi
1361    o aim.5l_cs: modify sea-ice fraction input file ; update output
1362    o exf: Adding simple range check routine for exf fields after read
1363    
1364    checkpoint52k_post
1365    o removed top-level directory "diags"
1366      - we migrated these functions to pkg/timeave a long time ago
1367    o fixed bug introduced in pkg/monitor
1368    o accuracy ctrlprec = 32 insuffient for gradient checks using
1369      averaged fields (I/O via cost_averages)
1370      -> use ctrl.h in active_file*.F to control I/O precision.
1371    o paramter list of CALL ADTHE_MAIN_LOOP
1372    o added initial do_the_model_io to ecco
1373    o set all ...Freq to zero after cost_final
1374      taveFreq, dumpFreq, pChkptFreq
1375    o MAIN and ECCO differentiability restored
1376    
1377    checkpoint52j_post
1378    o fix nchklev in tamc.h for global_ocean...
1379    o Bringing flow and store directives up-to-date
1380    o Really weird thing!
1381      call do_the_model_io from the_main_loop with parameters
1382      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1383      TAF places a faulty re-call of initialise_varia
1384      after cost_final call which should not be there!
1385    checkpoint52j_pre
1386    
1387    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1388      error messages
1389    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1390    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1391      debug output
1392    o modfied mdsio_writefield.F to handle non-global files under exch2
1393    o update AIM Cubed-Sphere exp (aim.5l_cs):
1394      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1395    o update AIM Equatorial Channel exp:
1396      use standard aim_v23 pkg and change the SST fields to be more realistic.
1397    o globalFile now works with exch2
1398    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1399      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1400    o limit timeave output for hi-res integrations
1401    
1402    checkpoint52i_post
1403    o removed CPP_EEOPTIONS.h from verification/*/code
1404    o updated the tiling for global_ocean_pressure
1405    checkpoint52i_pre
1406    
1407    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1408      the old pkg/aim).
1409    
1410    checkpoint52h_pre
1411    o shortened offending lines in exch2_send_rx?.template
1412    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1413    o genmake2: add build & execute test for NetCDF code
1414    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1415      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1416    o added useSingleCPUIO flag to monitor.F and mon_out.F
1417    o added temporary hack for sea-ice dynamics on the cube:
1418      metric terms are ignored and it is assumed that
1419      there is no sea-ice on cube faces 1, 2, 4, and 5.
1420    
1421    checkpoint52f_post
1422    o added exch2 cube routines to pkg/exch2
1423    o modified hs94.cs-32x32x5 to use it
1424    o added new grid files to hs94.cs-32x32x5
1425    checkpoint52f_pre
1426    
1427    checkpoint52e_post
1428    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1429      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1430    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1431      to work with implicit vertical advection and AB ;
1432    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1433    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1434     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1435    checkpoint52e_pre
1436    
1437    o fix bug in impldiff when Nr=1 or Nr=2.
1438    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1439    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1440    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1441      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1442    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1443    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1444    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1445    
1446    checkpoint52d_post
1447    o re-tiled many expts to allow comparison in multi-processor mode
1448      - updated output accordingly
1449      - changed hs94.128x64x5 to use intial T from file rather than use the
1450        random number generator
1451    o add infrastructure in model routines for fizhi and gridalt packages
1452    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1453    o changes to permit hi-res, cubed-sphere, configuration
1454      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1455      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1456      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1457        of surface winds for the cube
1458      (A verification experiment, based on global_ocean.cs32x15, but with
1459       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1460       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1461       complete with example surface forcing files and matlab scripts to look
1462       at the output and compare it with that of global_ocean.cs32x15.)
1463    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1464       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1465       to conform to the common rule.
1466    o check-in the first version of the coupler + interfaces for multi-components
1467       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1468       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1469       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1470       - ocean and atmos. share the same horizontal grid (no interpolation).
1471       - exchanges between component and coupler is done in forward_step
1472    o new verification experiment, cpl_aim+ocn:
1473       coupled ocean - AIM atmosphere on cs32 grid.
1474    
1475    checkpoint52d_pre
1476    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1477    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1478    
1479    checkpoint52c_post
1480    o Fixing OPTIONS files for use of exf:
1481      - ALLOW_ECCO not needed
1482      - ECCO_CPPOPTIONS.h should not be included from
1483        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1484        as has been the case in the past
1485      - All cal/exf related options are currently set in
1486        single header file. Should remain so until we
1487        agree on a consistent new policy.
1488    o Removed all CPP options for cal package.
1489      cal has no more CPP options.
1490    o modified STOREs in GAD_ADVECTION
1491    o corrected key comp. for passkey
1492    
1493    checkpoint52b_post
1494    o new version: "thsice" of thermodynamic sea-ice pkg:
1495     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1496     - modify fluxes but do not change theta directly;
1497     - light cleaning of bulk_force pkg (still needed with thsice).
1498     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1499       + output_thsice.txt to test thsice & bulk_force pkgs.
1500    o put back grid & coriolis monitor output.
1501    checkpoint52b_pre
1502    
1503    o call "do_the_model_io" at the beginning (=> dump initial state)
1504    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1505    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1506      (need info on NUMBER_OF_PTRACERS)
1507    o missing PTRACERS headers in some routines
1508    o default tamc.h in pkg/autodiff supposed to crash
1509      to ensure proper customization
1510    
1511    checkpoint52a_post
1512    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1513      - moved surfaceTendencyTice from pkg/seaice to main code
1514      - subroutine FREEZE_SURFACE now limits only surface temperature
1515        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1516        => new output.txt for global_ocean.cs32x15 & global_with_exf
1517      - keep the old version of FREEZE for backward compatibility;
1518        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1519      - corresponding modifs for TAF directives
1520    o added surface flux output variables to TIMEAVE_STATVARS
1521    o time-averaged output for pkg/ptracers
1522    o fix problem with ECCO-related divided adjoint
1523      snapshot file was missing some ad-variables,
1524      but no warning issued by TAF
1525    
1526    checkpoint52a_pre
1527    o some bug fixes for #undef REAL4_IS_SLOW
1528    
1529    checkpoint52 = ecco_c52_e35
1530    o after testing adjoints of checkpoint51u_post
1531    
1532    checkpoint51u_post
1533    o this is the post-merge tag of the ecco-branch
1534      (needs another clean checkout and re-testing)
1535    o various natl_box_adjoint configs and results
1536      but no input fields
1537    o obcs adjoint not yet merged!
1538    o adding ECCO global 1x1 and 2x2 degree configs
1539    o updated/extended some store directives for seaice
1540    o pkg/ecco now containes ecco-specific part of cost function
1541    o top level routines the_main_loop, forward_step
1542      supersede those in model/src/
1543      previous input data.cost now in data.ecco
1544      (new namelist ecco_cost_nml)
1545    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1546    
1547    checkpoint51t_post
1548    o this is the pre-merge tag of the ecco-branch
1549    
1550    checkpoint51s_post
1551    o cleanup: removed various obsolete #define-s
1552    o pkg/grdchk
1553      - renamed 'ph-grd 3' to 'grad-res'
1554      - merged from ecco-branch
1555        (remaining bug fixes for obcs gradient checks)
1556      - additional high-precision output for testreport
1557        (grep for 'precision_grdchk_result')
1558    
1559    checkpoint51r_post
1560    o cleaned up or removed CPP_OPTIONS.h files
1561    o updated results for some of the tests to reflect the new
1562      optfiles (-ieee: -O0 instead of -O3)
1563    
1564    checkpoint51q_post
1565    o cd_code:
1566      - moved cd_scheme.F -> cd_code_scheme.F
1567      - separate read_checkpoint from cd_code_ini_vars.F
1568      - separated cd_code part from write_checkpoint
1569      - updated AD_SOURCE, generated .flow
1570      - added CD_CODE_VARS.h to the_main_loop
1571      - Moving cd_code specific store dir.s to pkg/cd_code
1572    o ctrl package totally restructured
1573      - pack/unpack now optional and decoupled from
1574        xx_/adxx_ I/O
1575      - ctrl_pack/unpack cleaned
1576        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1577      - confined inclusion of AD_CONFIG.h to where necessary.
1578    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1579    
1580    checkpoint51p_post
1581  o create initial cd_code package  o create initial cd_code package
1582      - WARNING: the initialization of fields within packages
1583        is broken because INI_FIELDS (where READ_CHECKPOINT is
1584        called) is called *before* PACKAGES_INIT_VARIABLES.
1585        This seems to be backwards since
1586        1) its important to initially zero the entire field including
1587           the "halo" region
1588        2) zeroing needs to be done *before* reading pickup info
1589           and the pickup call might or might not happen in any
1590           particular run
1591      - this needs an overhaul for R2
1592  o cleanup verification/*/code/GMREDI_OPTIONS.h  o cleanup verification/*/code/GMREDI_OPTIONS.h
1593  o cleanup testreport  o cleanup testreport
1594    

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