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revision 1.60 by jmc, Sun Feb 10 20:07:14 2002 UTC revision 1.750 by jmc, Fri Nov 24 00:13:37 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 verification: remove 2nd copy of input files and use script "prepare_run"
8      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
9    o mom_common/vecinv/fluxform: fix a few initialisation isssues
10    o profiles: fix for multithreaded case
11    
12    o diagnostics: rename few diags:
13      s/'PRESSURE'/'RCENTER '/g
14      s/'TICE    '/'oceFreez'/g
15      s/'TAUX    '/'oceTAUX '/g
16      s/'TAUY    '/'oceTAUY '/g
17      s/'SWFLUX  '/'oceQsw  '/g
18      s/DIFx/DFxE/g
19      s/DIFy/DFyE/g
20      and add few ocean-forcing diagnostics:
21      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
22    o modifications to pkg/seaice/growth.F and budget.F, which change results of
23      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
24      as actual snow thickness.  It now refers everywhere to effective snow
25      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
26    
27    checkpoint58r_post
28    o modifications to pkg/seaice/growth.F, which change results of
29      lab_sea experiment: fixes pertain to melting snow over open water, to
30      masking EVAP under sea ice, and to using the correct AREA variable for
31      computations of EVAP, PRECIP, HSNOW, and GHEFF
32    o add ability to read bathy, salt, and theta using MNC (off by def)
33    o add flooding algorithm and advection of HSNOW for pkg/seaice;
34      both are turned off by default and do no change any results
35    o seaice advection with pkg/thsice: a step toward the use of non-linear
36      advection scheme, but #ifdef or commented out for now (requires more EXCH).
37    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
38      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
39      in natl_box (affects results @ truncation level: update output.txt)
40    o multi-threading and IO:
41      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
42      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
43        (needed to work with SingleCpuIO): tested in all verif. exp.
44    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
45      affects the results (but none of the verification test uses this scheme).
46    o Adding some pkg/diagnostics capability to pkg/seaice
47      (will certainly be subject to changes)
48    o ctrl: adding new control variables:
49      lwflux, lwdown, evap, snowprecip, apressure, runoff
50    
51    checkpoint58q_post
52    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
53      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
54      high_res_cube configuration by 4% on Columbia.
55    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
56      add (in global_with_exf/code) a version of EXF_INTERP_READ without
57      dynamical allocation (seems to work in multi-threaded).
58    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
59      single CPU io) so that TAF does not have to see EESUPPORT.h
60    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
61    
62    checkpoint58p_post
63    o obcs: stop if obcs is used with useCDscheme = .true.
64    o shelfice:
65     - fix a sign error so that no slip at shelfice interface works
66     - remove stop for combination non-hydrostatic code and shelfice. That does
67       not mean, that the results are correct, but at least they are numerically
68       stable
69    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
70    o added adjoint exch routined for all exch*3d* routines
71      and updated flow directives
72    
73    checkpoint58o_post
74    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
75      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
76    o change controling S/R for writing pickup file (new S/R do_write_pickup)
77      and clean-up reading/writing of pickup files.
78    o fix local version of read/write pickup (NH part) in rotating_tank/code
79    o simplify EXCH interface:
80     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
81     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
82    o added the regrid package
83    o shelfice:
84     - add a simple boundary layer scheme to reduce noise
85     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
86    
87    checkpoint58n_post
88    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
89       local variable (not in common block).
90    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
91      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
92      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
93        to work with SingleCpuIO.
94    o add "_d 0" to real constant of pkg/cfc subroutines ;
95       update exp. cfc_exemple & tutorial_cfc_offline output files.
96    o multi-threading and IO:
97      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
98        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
99      - barrier before and after reading.
100      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
101      - avoid using MDS_WRITELOCAL for LAND pkg output.
102      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
103        common-block variables ; Allows multi-threading with master-thread IO.
104    o change default MAX_NO_THREADS from 32 to 4 ;
105      and stop cleanly when MAX_NO_THREADS is too small.
106    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
107    
108    checkpoint58m_post
109    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
110       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
111    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
112       keep global_ocean.90x40x15 (for AD testing) with former secondary test
113       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
114    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
115        add MITgcm_tutorials (= code + all the tutorials)
116    o ecco, option to compute cost for total ssh (mean+anom)
117    o consistent with addition of ptracer and ssh in pkg/profiles
118    o profiles: adding ptracer and ssh
119    o testreport: change multi-test output-file name
120      (from output.txt.{name} to output.{name}.txt)
121    o profiles: now ok for mutli-tiles case
122    o seaice: add 4 parameters for different advection schemes for area,
123      (effective) seaice thickness, enthalphy, and snow height. Their default
124      is the standard parameter SEAICEadvScheme
125    o calc_gw:
126     - add cosFacU in zonal viscous flux (harmonic.visc.).
127     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
128       of tutorial_plume_on_slope.
129    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
130    o calc_gw: true flux-form, account for horizontal grid spacing.
131      update rotating_tank results, but not plume_on_slope (affected at
132      truncation level, 11 digits).
133    
134    checkpoint58l_post
135    o calc_gw:
136     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
137     - remove side-drag for now (need to fix it); update plume_on_slope results.
138     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
139    o commit code to make SST/SSS weights spatially variable
140      (based on either variable in-situ or variable initial T/S weights)
141    o pkg/ecco:
142      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
143        now based on horizontally varying weights wthetaLev, wsaltLev
144      * cost_averagesflags now returns year indices in addition to day, month
145      * sflux balance is performed on annual basis
146        (sflxumm, sfluxmm2, bal_sfluxmm)
147      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
148        including separate counting and multipliers
149    o pkg/rbcs
150      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
151    
152    checkpoint58k_post
153    o testreport:
154     - always build in dir. "build" (if not there, mkdir build instead of building
155       & running in input)
156     - run in dir run (if it exists), in build otherwise.
157     - call prepare_run (if input/prepare_run exists)
158     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
159    o pkg/exf modifications to interpolation and rotation routines for more
160       reasonable treatment of North Pole singularity: for tracers North Pole
161       value is set to northernmost zonal-mean value, for zonal velocity it is
162       set to zero, and for meridional velocity it is set to northernmost value.
163    o pkg/exf/exf_check_range.F
164     - add tile index to diagnostics and move stop statement to the very
165       end of the routine.
166    o pkg/diagnostics: (diagnostics_main_init.F)
167      define title of isomorphic variables according to the current config.
168    o pkg/thsice with pkg/seaice dynamics:
169    - fix domain of computation (interior only, required for exf) and do exchanges
170    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
171    o towards a standard way of dealing with multi-threading in MONITOR
172      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
173    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
174       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
175    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
176    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
177    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
178       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
179    o tracer advection:
180     - clean-up and simplify calc_common_factors.F
181     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
182       advection subroutine (but still not used within DST advection S/R)
183    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
184    
185    checkpoint58j_post
186    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
187      from file (collects calls previously in FORWARD_STEP)
188    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
189    o adjoint store dir. adjusted accordingly
190    o genmake2
191      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
192    
193    checkpoint58i_post
194    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
195      on wind stress (SEAICEstressFactor defaults to 1.)
196    o Total number of Timers is finite (<=40): comment out 2 non-essential one
197      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
198    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
199      on CS-grid: no longer loosing mass.
200    o exf & curvilinear-grid: no longer modify longitude xC & xG.
201    o pkg/ggl90: fix sloppy output and fix a bug
202    o pkg/seaice: added SEAICEuseEVPpickup parameter
203      - Set to false in order to start EVP solver with
204        non-EVP pickup files when using SEAICEuseEVP
205      - fix sign error in diffusion in seaice_calc_rhs
206    
207    checkpoint58h_post
208    * Modifications for bottom topography control
209      o replace hFacC by _hFacC at various places
210      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
211      o add non-self-adjoint cg2d_nsa
212      o update autodiff support routines
213      o re-initialise hfac after ctrl_depth_ini
214      o works for 5x5 box, doesnt work for global_ocean.90x40x15
215    * Adding verification for 5x5 box (4-layer) bottom topography control
216    
217    checkpoint58g_post
218    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
219       used for mean seasonal cycle, mean diurnal cycle); add an example
220       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
221    o pkg/ggl90:
222      - add parameter (minimum surface kinetic energy)
223      - fix bug (avoiding division by zero)
224    o couple pkg/thsice to pkg/seaice:
225      - modify advection in seaice to accomodate new scalar fields to be advected
226      - only muliDimAdection scheme work with seaice/thsice
227      - mapping of thsice-variables to seaice-variables, back and forth
228      - does not break the verification experiments, but does not give the
229        desired results either
230    o pkg/seaice
231      - make (default) second order advection a bit less confusing?
232    
233    checkpoint58f_post
234    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
235      to pkg/seaice):
236      - new routines thsice_map_exf and thsice_get_exf provide the interface
237      - add an additional formal parameter to thsice_solve4temp
238    o pkg/exf:
239      - add new fields wspeed, snowprecip (to be able to couple to thsice)
240      - correct Stefan-Boltzmann constant
241      - new parameter for longwave surface emittance
242      - separate some stuff from exf_bulkformulae into new routines  
243        exf_radiation, exf_wind
244      - add new parameters and constants: longwave emissivity for ocean, ice
245        and snow, evaporation parameters over ice
246      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
247        either wind from stress or stress from wind
248    o pkg/thSIce:
249    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
250    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
251       and THSICE_CALC_THICKN
252    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
253    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
254      to make debugging easier.
255    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
256    o pkg/bulk_force:
257      - clean-up comments and parameters ;
258      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
259    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
260      generate new output for test-experiment: aim.5l_cs.thSI
261    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
262      testreport accordingly
263    
264    checkpoint58e_post
265    o SEAICE_CGRID adjoint done
266    o R_STAR adjoint implemented.
267      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
268      * need to sort out init. of h0facc, etc.
269    o Make pkg/profile fully independent of ecco,cost, etc. stuff
270      to be able to use it in pure forward.
271    
272    checkpoint58d_post
273    o upgrade simple test-experiment to tutorial example:
274     step.1: duplicate the experiment and (step.2) will remove the old copy.
275      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
276      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
277      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
278      tutorial_global_oce_biogeo    <- copy of dic_example
279      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
280      tutorial_plume_on_slope       <- copy of plume_on_slope
281      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
282      tutorial_global_oce_optim     <- empty for now (David ?)
283      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
284     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
285    o correct a sign problem in cost_scat.F
286    o obcs and ptracers: fix boundary conditions for advections schemes
287      with larger stencil
288    o thsice adjoint: start
289    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
290      completeness
291    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
292      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
293    o ptracers adjoint:
294      * avoid extensive recomputatations
295      * fix missing re-init. of gptr (missed by TAF)
296    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
297      me to turn off the excessive output to STDOUT that this package produces
298    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
299      and add those terms in Vector-Invariant formulation.
300    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
301      if the control period (xx_hfluxperiod etc) is 0
302    o in profiles pkg, clean routines and fix details
303    o in ecco pkg, reading ssh data:
304      fix problem in case the model does not start at iter0=0
305    o fix mnc-pickup/restart for ptracers
306    o new package prifiles:
307      code to compute profile-based cost by Gael Forget
308      (modifs in ecco, ctrl, autodiff)
309    o Benign bug fix in initialization (spotted by M. Mazloff) of
310      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
311    
312    checkpoint58c_post
313    o adjoint: finish NLFS adjoint and provide reference output in
314      verification/global_ocean.90x40x15/results_ad_nlfs
315    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
316      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
317      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
318      with SEAICE_CGRID defined.
319    o move calendarDumps from "data" to "data.cal" and clean-up the code
320      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
321    o add useEXF & useCAL flags (for now, set in hard-coded way)
322    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
323      (were missing in NH mode, and wrong in quasihydrostatic mode).
324      waiting for Chris updated version of calc_gw to add those CALLs.
325    o fix bug in quasihydrostatic S/R ;
326      add a test for this option: global_ocean.90x40x15.qshyd
327    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
328      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
329    o add on/off flag useOffLine for package OFFLINE
330    o seaice:
331      - modify advection so that it works also on the C-grid
332      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
333        problem in multi-tile runs with C-grid
334      - add flags for clipping ice velocities and/or masking solver forcing
335      - fix drag (ocean on ice) formulation and a bug that caused noise in the
336        C-grid solver
337      - added a few comments to seaice_diffusion.F
338      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
339        are now exclusive)
340      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
341        required re-ordering the code a little:
342       + make DAIRN global variable (defined in SEAICE)
343       + move computation of the viscosities eta and zeta into a new separate
344         routine (because I need to recompute them in seaice_ocean_stress.F)
345    
346    checkpoint58b_post
347    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
348      update output.txt of exp. aim.5l_cs.thSI
349    o various mnc cleanups and improvements:
350      + shrink lookup tables by factor of ~4
351      + better error reporting when running out of lookup space
352      + able to handle longer path/file names (up to 500 chars)
353    o adjoint:
354      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
355      - TBD: "hidden" mom_vecinv recomp. in dynamics
356    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
357     (allow to differentiate between forcing components using new integer flags:
358      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
359     and add new flag to put Dissipation tendency out of Adams-Bashforth.
360    o ecco
361      - enable trend removal from SSH anomaly obs.
362    o adjoint
363      - a fix for PmEpR when #undef EXACT_CONSERV
364      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
365      - try to fix "hidden" recomp. in forward_step for NLFS
366        (NLFS seems broken sometimes after I checked it in)
367    o seaice:
368     - add c-grid version of the dynamic solver:
369       + three new routines that are the c-grid substitute lsr, dynsolver
370         and ostres
371       + put a few fields that were local to dynsolver into global common
372         blocks, so that I can move the computation of stresses etc into
373         seaice_lsr (saves coding but may break the adjoint).
374     - replace more hardwired parameters by runtime parameters
375     - add ice masks that mask the rhs of the implicit solvers where there
376       is no ice (commented out in seaice_dynsolver, because i am not sure
377       if this works properly), eventually this should replace the clipping
378       of ice velocities in seaice_dynsolver to +/-40cm/s.
379    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
380      include it only where its needed
381    o move balancing of fluxes before the call of external_forcing_surf
382    o seaice:
383      - correct units of turning angles (now they are really in degrees)
384      - move computation of GWATX/Y out of main routine into dynsolver
385      - initialize GWATX/Y in seaice_init
386    o Apply mask on Fresh-Water flux (needed for SSH forcing).
387      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
388    o seaice: add runtime flags for turning angles (default to zero)
389    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
390      and trend from exf forcing and ctrl control adjustments
391    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
392      (since checkpoint57x_post)
393    o change the default rotation period to 86164.s = the Earth rotation
394    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
395      and based on a reference stratification. Tested within hs94.cs-32x32x5.
396    o seaice advection: add code for choosing between the default (2nd order
397      central differences) and multiDim advection schemes provided by
398      pkg/generic_advdiff
399    o seaice:
400      - removed all references to SEAICE_GRID.h fields from
401        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
402        (cubed-sphere configuration will change a little)
403      - grid computations in seaice_init are obsolete now.
404      - cleaned up code a little so that is easier to read (hopefully).
405      - added new (better?) discretizations of default advection and diffusion
406        (turn on with SEAICEuseFluxForm)
407      - replace 1 in 3d global fields by kSurface in growth.F
408      
409    checkpoint58a_post
410    o seaice:
411      - bug fix in advect.F
412    o shelfice:
413      - separate shelfice load anomaly from pload (breaks with time
414        dependent forcing), => introduce constant field shelficeLoadAnomaly.
415        Its default is 0., but it may be computed more cleverly from (unknown)
416        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
417        done offline. A good approximation of the pressure load anomaly is
418        necessary to avoid large initial adjustment processes underneath
419        deep-reaching shelfice.
420      - small fix in ISOMIP shelfice_thermodynamics
421      - add more sophisticated thermodynamics of Hellmer (1989), this is
422        now the default
423      - give a few constants more intuitive names
424    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
425      if bulk formulae are used in long integration (especially EmPmR). Turn
426      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
427      if balancePrintMean, the imbalance that is substracted is printed to
428      STDOUT.
429    o fix bug (typo) in obcs_apply_eta.F
430    o add a new package shelfice which enables us to model the circulation
431      underneath shelf-ice with draughts of hundreds of meters.
432     - works
433     - to do: + include improved thermodynamics
434              + check whether kSurfC (from model/inc/SURFACE.h) can be used
435                instead of new field kTopC
436              + can we use topoFile, Ro_surf and existing code in ini_depth.F
437                instead of new field R_shelfIce and new code in ini_depth.F
438                and ini_mask_etc.F?
439              + adjust vertical mixing schemes?
440    o seaice pkg:
441     - add a cpp-flag to include a simple formula for a salinity dependent
442       freezing point of sea water at the surface
443     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
444       meridional stresses are now different (and hopefully correct)
445    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
446       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
447       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
448    o pkg/diagnostics: add options and parameters for regional-statistics
449       diagnostics ; define regions by reading a region-mask from a file
450       (might add other options later)
451    o pkg/bulk_force:
452     - add option and parameters to use AIM surface-flux formulae.
453     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
454       others forcing fields (defined in PARM05, parameter file "data") are loaded
455       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
456     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
457     - use the right EXCH call for uwind,vwind (to work on CS-grid).
458     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
459       and parameters (note: calcWindStress replaces .NOT.readwindstress).
460     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
461    
462    checkpoint58
463    o add "--embed-source" option to genmake2 which, when the supporting
464      tools can be compiled (as determined by genmake2) will turn on the
465      embed_files package which then embeds the entire MITgcm source code
466      (*.[fFhc] + Makefile) used for the build within the executable
467      - requested by CNH but off by default
468      - adds a paltry <9MB to the mitgcmuv executable in most cases
469      - only writes the output when useEMBEDSRC in eedata is true
470    o clean up 3-dim. relaxation codes:
471      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
472      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
473      * Thanks to Tom Haine for testing!
474    
475    checkpoint57z_post
476    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
477      affects output (@ truncation level) of exp. plume_on_slope ; updated.
478    o fix the pickup behavior for obcs in combination with ptracers
479    o fix a bug in ptracers_external_fields_load
480    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
481      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
482    o transfered surface NH pressure to eta field (if exactConserv).
483    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
484         and update lab_sea output.txt file.
485    o completing 3-dim. relaxation code: additional term
486         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
487      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
488      * At compile time, in "EXF_OPTIONS.h" set
489          #define  ALLOW_CLIMTEMP_RELAXATION
490          #define  ALLOW_CLIMSALT_RELAXATION
491      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
492          tauThetaClimRelax3Dim = 15552000.0,
493          tauSaltClimRelax3Dim  = 15552000.0,
494      * 3 cases:
495          1) Use a constant-in-time 3-dim. field
496          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
497          3) Real-time relax. to time-evolving prescribed field
498    o Adding Laplacian-type smoothness constraint on
499      initial and boundary (forcing) controls (ic, bc)
500      * enable at compile-time via
501        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
502      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
503      * Absolute scale somewhat unclear so far
504      * no area weighting was included since no other cost term does so far
505    
506    checkpoint57y_post
507    First step for a NLFS adjoint
508    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
509    o new init. routines for calc_r_star, calc_surf_dr
510    o still need to deal with ini_masks_etc
511    o testreport seemed happy
512    checkpoint57y_pre
513    
514    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
515    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
516    o add new offset feature to offline pkg (plus minor cleanup)
517    o cfc fixes for final year of integration
518    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
519      be in GCHEM_OPTIONS).
520    
521    checkpoint57x_post
522    o fix testreport Pb in multiple test experiment.
523    o cleanup our namelist syntax in verification:
524      - make it more F95 standards compliant (some work still needed)
525      - allows the vast majority of our tests to work with gfortran
526    o Non-Hydrostatic:
527     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
528     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
529    o Allow to apply AB on T,S rather than on AB(gT,gS):
530     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
531     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
532       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
533     - need a "clever" read_pickup to restart from the other AB formulation
534    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
535    o remove some unused variables (reduces number of compiler warnings)
536    o adjoint
537      * Disable useVariableViscosity for adjoint for time being
538        (there are a number of extensive recomputations)
539      * Initialize certain variables needed for adjoint
540    
541    checkpoint57w_post
542    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
543                 fix the singleCpuIO RS version of MDSWRITEFIELD
544       and add a WARNING if using globalFiles=T with multi-processors.
545    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
546      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
547    o tracer advection scheme:
548      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
549       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
550       was not very convenient).
551      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
552       (further tests needed for the implicit DST & Flux-Limiter schemes).
553    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
554      and sRef for convenience, handy, when you want to initialize
555      ptracers in a large domain with a constant non-zero value. Also,
556      untangle ptracers_init.F a little.
557    
558    checkpoint57v_post
559    o change dome exp. to use variable viscosity in side-drag terms.
560    o remove all the files from the cfc_offline test since they are now
561      incorporated into tutorial_cfc_offline which has been producing
562      identical results for a few days of testing
563    o add new parameter: sideDragFactor to enable half-slip-side BC
564      and change side-drag S/R to use viscosity from mom_calc_visc
565      (can switch back by setting sideDragFactor=0.); affects results at
566      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
567       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
568    o vorticity & strain are now computed without masking, to account for
569      no-slip-side BC in variable viscosity calculation ; mask is applied
570      anyway later on, before computing advection/coriolis terms.
571    o modify exp4 to test new obcs support for reading from external files
572      and for passive tracers
573    o fix behavior of ptracers_monitor when monitor output is written to a
574      netcdf-file; still not independent of monitor.F (writes in the same
575      file).
576    o change default value of tRef (put a uniform, meaningful value for ocean
577      & atmos) and initialize sRef (was missing, as Martin mentioned).
578    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
579      to be proportional to enstrophy dissipation length.  Thus,
580       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
581      This is now consistent with Smagorinsky and with the manual.
582    
583    checkpoint57u_post
584    o OBCS and PTRACERS: add open boundary support for passive tracers
585      - either use homogenous (pseudo) v.Neumann conditions or prescribe
586        OB-values from file; this is not different from the way theta and salinity
587        are treated
588      - however, Orlanski-radiation conditions are not supported, and the model
589        will stop if you use pTracers and Orlanski at the same time.
590      - beefed up the rountine obcs_external_fields_load: now only those open
591        boundary values are overwritten with values from files for which there
592        are really files, otherwise the OB-fields remain untouched. This makes
593        it possible to use different OBs at different ends of the domain (as
594        with EXF)
595    o reduce number of exch calls in shap_filt (s2).
596    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
597      truncation level) 4/5 MLAdjust test results (11&12 digits match).
598    
599    checkpoint57t_post
600    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
601    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
602      same truncation, independent of the face number: affects affects several
603      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
604    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
605      note that biharmonic viscosity + no-slip was not tested in any experiment.
606    o fix bug in non-linear free-surf side-drag ; generate new output for
607      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
608    o make mnc honor the writeBinaryPrec flag for most kinds of output
609    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
610    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
611      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
612    o add brackets in multi-terms sum to get same truncation, independent of
613      the face number (manage to get exactly same value of gU,gV at the cs-edge)
614      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
615    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
616      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
617      a maximum grid-scale Reynolds number.  Also, changes all length calculations
618      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
619      Suggested values of viscosity parameters found in mom_calc_visc.
620      Many new viscosity diagnostics available.
621    
622    checkpoint57s_post
623    o Add clearing-house for viscosity calculations, mom_calc_visc and
624      correct numerous bugs in LeithD and Smagorinsky discretizations.  
625      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
626      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
627      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
628      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
629      The Strain-Tension form is now called with useStrainTensonVisc=.true.
630      ViscAhStrain and viscAhTension are now retired.
631    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
632    o In response to JMC's bug report, genmake2 now ignores any soft-links
633      that it finds in the *current* directory when searching for files.
634      Soft-links found in any other source directories will still work as
635      they did before.
636    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
637      a C routine to unlimit the stack size
638    o mnc-ify pkg/aim snapshot vars
639    o mnc-ify pkg/land as requested by Daniel
640    o various changes to mnc including:
641      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
642      - output can now be grouped so that all files within a group
643          change the ITER portion of their names in lock-step together
644      - can now read ("global") PER-FACE (in addition to PER-TILE) files
645          and works with both EXCH1 and EXCH2 (but needs more testing)
646      - writing works for all verification test cases w/ g77 on Linux
647    
648    checkpoint57r_post
649    o make MNC variable initialization happen earlier
650    o add diagnostics for (almost) each term of the momentum Eq.
651    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
652    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
653    o remove MINIMAL_TAVE_OUTPUT option ;
654      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
655    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
656      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
657    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
658    o add time-dependent SST, SSS control
659    o cost terms in ecco/ modularized (new cost_generic.F)
660    o cost_averages routines are modularized (new cost_averagesgeneric.F)
661    o new infrastructure for seaice model vs. obs misfits in seaice/
662      * driver from the_main_loop.F is seaice_cost_driver.F
663      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
664      * gradient check in Exp. 6a of natl_box_adjoint/
665    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
666      (see README file)
667    
668    checkpoint57q_post
669    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
670    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
671      - bug was reported by Jean-Michel and Ian Fenty
672    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
673      update exp. cpl_aim+ocn output.
674    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
675      Needed for high-res. runs with large global files
676      to be able to limit tapelev size
677    o Changed some tests for adjoint:
678      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
679      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
680      * global_ocean.90x40x15/ back to default 3-level checkpointing
681    o Modifications to enable scripted COMMON to MODULE conversion
682      * verification/OpenAD/code/ has necessary scripts and description;
683      * converts, compiles and runs successfully;
684    
685    checkpoint57p_post
686    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
687    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
688      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
689    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
690    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
691      (was already the case for dissipation with mom_vecinv,
692       and also the case for grad.PhiHyd when staggered-timeStep)
693      This will allow to put dissipation out-off the AB time-stepping.
694     Unfortunately, affects truncation error. Update output of exp. that "fails"
695      (cg2d matching number) and leave the others for later: front_relax(10),
696      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
697      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
698    
699    checkpoint57o_post
700    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
701      (2) its ready to be documented during the 20050801 DocFest
702    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
703      for ideal_2D_oce and lab_sea on linux_ia32_g77
704    o set to #undef CTRL_SET_OLD_MAXCVARS_30
705      in global1x1_tot/code_seaice_adj to access indices 32, 33
706      (worth another tag)
707    
708    checkpoint57n_post
709    o adding precip control xx_precip 32
710    o adding swflux control xx_swflux 33
711    o Replacing 10 forcing penalty cost routines by 1 generic.
712    o Implementing partitioning in time-mean and variable adjustment
713      for atmos. state.
714    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
715    o in natl_box_adjoint:
716      * updated exp 1 to 10
717        (but does not have time-mean vs. variable split results yet)
718    o updated global1x1/*_seaice_adj/
719      to incorporate latest changes
720    o enable useSingleCpuIO for mdsio vector routines
721      (applies in particular to tapelev I/O)
722    o removed inefficient K-loop in all active_file*control*.F
723    
724    checkpoint57m_post
725    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
726      and advect_cs (use EXCH-2 and standard cs-32 grid files).
727    o pkg/exch2: filling of face-corner halo regions is optional
728      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
729    
730    checkpoint57l_post
731     tag before updating tutorials (pre-release-2)
732    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
733       for output and interpolation of input fields onto model grid)
734    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
735       Affects results of exp. rotating_tank ; update output.txt.
736    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
737          and taking the square quantity and/or using a fraction-weight field.
738    o fix aim_diagnostics_init.F mate numbers.
739    o add mnc output capability to diagnostics/diagstat and update
740      our cvsignore files for the ACSII output generated
741    
742    checkpoint57k_post
743    o lab_sea now uses diagnostics package and provides a suite of
744      new EXF diagnostics output.
745    
746    checkpoint57j_post
747    o exf
748      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
749        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
750        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
751      * extended diagnostics output
752        - now includes all EXF variables
753        - hs, hl moved to common block
754        - separate S/R for diagnostics, called after ctrl vector is added
755        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
756        - EXFqnet contains true Qnet (i.e. includes qsw)
757      * updated verif. lab_sea, global_with_exf
758      * Rearranging hflux (exf_mapfields -> exf_getforcing)
759        to ensure that diagnostics sees a true EXFqnet
760    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
761    o diagnostics pkg: change pointers so that 1 diagnostic can be used
762      several times with different frequencies.
763    o mnc-ify the thsice package as requested by Daniel Enderton
764      - the monitor--MNC output needs work
765      - many attributes need to be added (most are currently blank)
766    o mnc-ify theaim_v23 package as requested by Daniel Enderton
767      - many attributes need to be added (most are currently blank)
768    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
769    o add Sadourny like discretization to the 4th.O vorticity advection scheme
770    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
771      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
772         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
773    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
774     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
775    
776    checkpoint57i_post
777    o Diagnostics package was changed: diagnostic allocation is now deactivated
778      by setting an empty file name in the namelist (used to be by setting 0 frequency)
779    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
780      add 1rst Order upwind vertical Shear.
781    o add a quick fix for A/B checkpointing in OFFLINE mode
782    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
783      end-run around the C/Fortran linking horror in eesup/src/timers.F
784    o added pkg/runclock: allows user to terminate run based on wall clock
785    o added non-hydrostatic scaling parameter: nh_am2
786    o pkg/my82: futile attempt to make results compiler-independent by adding
787      some "_d 0", etc. no effect.
788    o for mnc output, fill the 'T' coordinate var with myTime and create a
789      separate 'iter' variable for iteration count
790    o pkg/diagnostics:
791      add new capability: output of Global/Regional & per-level statistics ;
792      tested against monitor output (including land & thSIce) on various exp.
793    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
794    
795    checkpoint57h_done
796      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
797      data.diagnostics, data.gchem, data.ptracers) is done.
798    
799    o pkg/diagnostics: prepare for Global/Regional statistics.
800      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
801    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
802      and rename it: DIFFERENT_MULTIPLE
803    
804    checkpoint57h_post
805    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
806    o pkg/diagnostics: change output frequency, now in seconds (instead
807      of Nb of iterations). This requires to change data.diagnostics.
808    checkpoint57h_pre
809    
810    o in mnc, let the user create the output dir if both mnc_outdir_date
811      and mnc_outdir_num are false
812    o add fflags() to pkg/diagnostics which allows one to specify, on a
813      per-file basis, the file precision [default behavior is unchanged]
814    o added diagnostics to pkg/kpp, including computation of mixed layer
815      depth based on a temperature/density criterion
816    o updated verification/natl_box to test the new pkg/kpp diagnostics
817    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
818    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
819    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
820      not mnc -- this mistake was found by JMC and is now corrected
821    
822    checkpoint57g_post
823    o add Adams-Bashforth 3rd Order time stepping:
824      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
825      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
826    checkpoint57g_pre
827    
828    o make lambda[Theta,Salt]ClimRelax spatially varying
829      (default remains spatially uniform constant based on tau)
830    o added new control variables
831      * init. uVel, vVel, etanN
832      * lambda[Theta,Salt]ClimRelax
833    o separate masks used for ctrl_pack/unpack 'from write_grid' output
834      (suggested by G. Forget)
835    
836    checkpoint57f_post
837    o add parameter "baseTime" = model base time = time at iteration zero
838      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
839      account for baseTime shift
840    o move Coriolis arrays from PARAMS.h to GRID.h
841    checkpoint57f_pre
842    
843    o mnc-ifying the seaice package
844    o introduced an alternative length scale calculation for use in the limiting
845      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
846    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
847    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
848      as well as grad(vort3).  Made it compatible with both approximate form
849      for the cubed sphere and full form of these gradients.  Added flag
850      useFullLeith to select between approximate and full form.  
851    o add "d0" in getcon.F to reduce differences between compilers/platforms
852      update output.txt of exp. fizhi-gridalt-hs
853    o change port_rand funtion to allow to set the seed.
854    o fix obscure MNC bug involving conversion between reals and integers
855      - it caused no problems with certain (eg. gcc, ifc) compilers but the
856        new version is now more standards-compliant
857    o adjoint-related modifications
858      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
859      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
860      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
861    
862    checkpoint57e_post
863    o Adding eddy stress controls a la Ferreira et al.
864    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
865    
866    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
867      update output.txt of exp. fizhi-gridalt-hs
868    o add more "Z" dimensions and associated coordinate vars to MNC
869    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
870    o parameter calendarDumps: when set, approximate months (30-31 days) and years
871      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
872      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
873      months and years.  Requires pkg/cal.
874    o diagnostics: add pickup functionality
875      - off by default for backwards compatibility
876      - current version only uses MDSIO -- MNC will be added
877    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
878    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
879    
880    checkpoint57d_post
881    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
882    o modify verification/ideal_2D_oce so that it tests the creation of mnc
883      output from the diagnostics package
884    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
885    o make genmake2 more portable by using ".$FS" instead of ".f" for more
886      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
887    o add coordinate variables to the MNC output from the diagnostics package
888    o change MNC-flags default value: true when useMNC=TRUE
889    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
890      the ability (off by default) to read the grid information using MNC
891    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
892    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
893    o do snap-shot diagnostics at the middle of the time-interval (instead of
894      at the end).
895    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
896      new test for AIM with thSIce + slab-ocean
897    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
898    o move state variable diagnostics to the beginning of the time step ;
899      (note: still needs some work specially for snap-shot diagnostics)
900      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
901    
902    checkpoint57c_post
903    o Change testing option (-ieee) to get closer agreement between g77 & ifort
904    o generate new output.txt files on faulks with g77 & the new -ieee option
905    checkpoint57c_pre
906    
907    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
908      update output.txt of exp. global_ocean.90x40x15
909    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
910      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
911    o add saltFlux(+File) forcing capability with periodicExternalForcing
912    o allow to use pkg diagnostics for GM-Redi & ThSIce output
913    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
914    o improvements for the MNC output from DIAGNOSTICS:
915      - correct handling of the unlimitied dimension
916      - all dims now have associated coordinate variables
917      - variables located at U, V, and Corner ("Z") points are now written
918        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
919        *all* data points are output
920    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
921    o added pkg/seaice/seaice_monitor.F
922    o mdsio_readfield.F can now read files visible only to master MPI process.
923    o pkg/seaice: some test code for ice-modified ocean stress
924    o exf_getffields interpolation defaults to bilinear for all scalar forcing
925      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
926      spurious negative numbers for precipitation and humidity.  Will cause
927      some small numerical differences for integrations using pkg/exf/exf_interp.F.
928    o pkg/ctrl/
929      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
930        May be enabled via doPackDiag
931      *  introduce z-scaling of
932         + gradient (doZscalePack) and
933         + control (doZscaleUnpack)
934    o pkg/mdsio/
935      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
936      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
937    
938    checkpoint57b_post
939    o simplify options in diagnostics_fill arguments (remove weird combinations)
940    o fix MNC coordinate variables so that they now contain per-face index
941      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
942      general, EXCH2 grids are only aligned to a "local" coordinate system
943    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
944    o Implement instantaneous output within pkg diagnostics:
945      setting a negative frequency in data.diagnostics produces
946     "snap-shot" output (as opposed to time-average if freq > 0)
947    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
948      NOTE: change ptracer diagnostics name: use 2 characters to work with
949            more than 9 tracers. Add also diagnostics of advect & diffus flux.
950    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
951      becomes the coordinate variable for the 'T' dimension
952    o add CF-style coordinate variables to MNC
953      - just a first cut:  numbers are meaningless on the cubesphere and
954        missing along the T axis but otherwise it works!
955    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
956    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
957    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
958      this is based directly on what the model compute, so that the content of
959      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
960    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
961    o clean up build options files for SunOS, in particular
962      - remove -traditional from xmakedepend
963      - change -xarch=v9 to -xarch=native for f77
964      - restore use of make (not gmake)
965      - add CC=gcc if using g77
966    o changes per discussion of AM, JMC, & EH3 today:
967      - move redundant "grid" variables out of "state" -- in preparation of
968        creating proper CF-style coordinate variables and in recognition
969        that any/all grid variables can be easily copied (eg. w/NCO) from
970        the grid files into any of the other NetCDF files
971      - *always* output grid variables with MDSIO (this will eventually be
972        changed)
973      - output MNC grid file if useMNC is true
974    o every instance of _END_MASTER() has been found and replaced with
975      _END_MASTER( myThid ) in order to satisfy certain picky Sun
976      preprocessors
977    o re-arrange diagnostics pkg initialisation:
978     - allow each package to extend the available diagnostics list
979     - add some checking and fix small problems (multi-threaded, ...)
980     - new S/R diagnostics_fill (replace fill_diagnostics):
981       look through the short list of active diag. (instead of the long list)
982       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
983    
984    checkpoint57a_post
985    o this set of changes restores TAMC compatibility
986      tested for global_ocean.90x40x15 adjoint on trough
987      (what a pain)
988    
989    checkpoint57a_pre
990    o some modifs in tools/build_options for sunos
991    o call ctrl_pack for ctrl at end for optimcycle=0
992    
993    checkpoint57
994    o add horizontal bi-harmonic viscosity for vertical velocity
995      - new parameter viscA4W (defaults to viscA4)
996      - affects only non-hydrostatic code
997      - to be done: no-slip lateral boundary conditions
998    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
999    o implement Implicit Vertical advection for pTracers
1000    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1001      (implemented also for implicit vertical diffusion & advection)
1002    o OBCS: extend application of tracer open boundary conditions
1003      to a strip beyond the boundary of width Olx/Oly
1004    o add call monitor to TAF set of required calls (flow directives)
1005      and include in natl_box_adjoint
1006    o untangle a few ifdefs related to cost, ctrl, autodiff
1007      untangel a few ALLOW_ECCO_OPTIMIZATION
1008    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1009      (theta2, salt2 in ecco_cost_weights)
1010    
1011    checkpoint56c_post
1012    o OBCS as control variables
1013      - update ctrl_ad_diff.list, obcs_ad_diff.list
1014      - remove balance of obcs controls from default
1015      - fix index bug nobcs in ctrl_init
1016      - fix dummy fields filen in ctrl_pack
1017      - add dummy weights for obcs
1018    o lsopt: comment out fort.94 output
1019    o optim:
1020      - remove unnecessary header files
1021      - adjusted namelists
1022      - add xerbla.F to Makefile
1023    o exf:
1024      - multiple modifications of exf_check_range
1025      - unit change in exf_init_runoff from [m/year] to [m/s]
1026    o mdsio:
1027      - i/o-vector change debugLevel from debLevA to debLevB
1028    
1029    checkpoint56b_post
1030    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1031      is called from DO_THE_MODEL_IO
1032      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1033      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1034      - clean up PTRACERS_WRITE_TIMEAVE a little
1035    o add another verification experiment that tests both the cfc-pkg and
1036      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1037      reactive tendencies treated inline with regular timestepping
1038    o testreport previously did a lousy job of comparing small numbers, so
1039      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1040      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1041      testreport.
1042    o ptracers_monitor: bug fix for MPI
1043    
1044    checkpoint56a_post
1045    o GCHEM: finish reorganizating the package
1046      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1047        (introduces another 3D-array for each passive tracer, but only if
1048        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1049        gchemTendency is not needed because the timestep is done separately)
1050      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1051      - GCHEM is now---more or less cleanly---separate from PTRACERS
1052      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1053        so clear to me how that should be done in a general way.
1054    o CFC: improve formatting of output in CFC_ATMOS
1055    o PTRACERS:
1056      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1057        that ALL experiments with ptracers enable can be checked. This makes
1058        GCHEM_MONITOR obsolete.
1059      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1060        monitorFreq
1061      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1062    o add PTRACERS (PTR0[1-5]) to testreport output
1063    o exf_check_range:
1064      * default changed to .TRUE.
1065      * will check values for niter0 if debLevA, every timestep if debLevB
1066      * STOP in exf_check_range if 'out of range'
1067      * range chosen generous to allow for potential extema
1068      TBD: a version with stricter range
1069           permitted range would be runtime parameters
1070    o GMredi:
1071      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1072      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1073      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1074    o GCHEM:
1075      - move call to GCHEM_FORCING_SEP, so that it is now called before
1076        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1077      - introduced a useGCHEM runtime flag and applied it everywhere.
1078      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1079        this flag is now only visible within GCHEM-pkg routines.
1080      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1081        be replaced by a 3D array that is computed before thermodynamics; for
1082        this, the tracer ID iTracer had to be included into the parameter list
1083        of ptracers_forcing
1084      - set up forward_step to call gchem_forcing, that will replace
1085        gchem_forcing_int in ptracers_forcing
1086      - cleaning up
1087    o small cleaning of exch2: remove files that are also in eesupp/src
1088    
1089    checkpoint56
1090    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1091    o mnc: cleanup "full" files--fixes out-of-memory problem
1092    o ECCO-GODAE
1093      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1094      * fully merged and updated from SIO code
1095        windstress sign change affects
1096        - exf_inscal_[u/v]stress
1097        - sign of xx_tau[u/v] adjustments
1098        - signs in cost_scat
1099      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1100      * natl_box_adjoint updated and compressed
1101      * 2-level checkpoint switch added
1102        (tested in EXP. 1 of natl_box_adjoint)
1103      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1104    o SVD
1105      * first complete, non-hacked version for SVD calculations
1106      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1107        performed via direct access files admtlm_vector.it????
1108        (via ctrl_[un]pack)
1109      * optimcycle is used for ARPACK iteration counter
1110        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1111      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1112        and add linear transforms where necessary
1113      * controls are initial/final SST, SSS (can be extended; need to check
1114        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1115    o mdsio: filename info to both stderr, stdout
1116    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1117      from sign change
1118    
1119    checkpoint55j_post
1120    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1121      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1122    o add consistent build directories and .cvsignore files to verification
1123    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1124    o make all subroutines 30 or less characters in length for certain older
1125      compilers to work (a thorough search only turns up two routines in
1126      pkg/ptracers)
1127    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1128      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1129    
1130    checkpoint55i_post
1131    o change arrays for total vertical diffusivity (2.D if explicit,
1132      3.D if implicit) ; each ptracer uses its own background value.
1133    o added mnc/NetCDF output capability to ocn_compon_interf
1134      - added bits to verification/cpl_aim+ocn so that it can run on
1135        ITRDA and other clusters without the mpirun "-wd" option
1136    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1137      configuration
1138    o give MNC the ability to create additional files rather than
1139      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1140      - the default is just less than 2GB which is a practical limit
1141        on many systems
1142    o Compute the non-local term using either KPP vertical diffusivity (=default)
1143       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1144    
1145    checkpoint55h_post
1146    o add verification test "vermix"
1147    o remove all the *_ioinc flags and replace with the single global
1148      outputTypesInclusive flag
1149    o allow to set a vertical profile of vertical diffusivity for T & S
1150    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1151    o useMNC moved from data.mnc to data.pkg
1152    
1153    checkpoint55g_post
1154    o Renaming carbon AD experiments to comply with testreport conventions
1155    o Updating adjoint of Held-Suarez hs94.1x64x5
1156    o Fixing directives for non-ECCO forward_step, after ECCO directives
1157      have been fixed to avoid recomp. of do_oceanic_phys
1158      Works well for global_ocean.90x40x15,
1159      but recomp. issue remains for carbon
1160    o Updating adjoint output for natl_box_adjoint after
1161      pkg/ecco has been modified (see taga c55d_post)
1162    
1163    checkpoint55f_post
1164    o rename to timeave_init_fixed
1165    
1166    checkpoint55e_post
1167    o some delicate re-shuffle of store directives to avoid one
1168      extra call of do_oceanic_physics
1169      affects ecco_the_main_loop.F, do_oceanic_physics.F
1170      checkpoint_lev1_directives.h
1171    o NB: this may break global_ocean adjoint temporarily,
1172      but it is clear how to fix it. Will do later, need this now.
1173    
1174    checkpoint55d_post
1175    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1176    o ecco_cost_weights is modified to 1x1 runs
1177    o modifs to allow observations to be read in as
1178      single file or yearly files
1179    o enable to read exf forcing fields as either
1180      single file or yearly files (flag useExfYearlyFields)
1181    checkpoint55d_pre
1182    
1183    o switch between 2-level and 3-level checkpointing
1184    o add ability of MNC to write local and "partial" (eg. 2D slices where
1185      the full 3D field is never actually stored) arrays to NetCDF files
1186      with the correct (that is, the complete multi-dimensional) set of
1187      array indicies
1188      - used in mom_vecinv() to write the diagFreq output
1189      - tested (demonstrated) in verification/aim.5l_cs
1190    o further mnc-ification
1191      - add verification/lab_sea to the list with mnc setups
1192      - fix undefined mnc v-names in cd_code
1193      - add kpp to mnc output (both snapshot and timeave)
1194    o non-hydrostatic code
1195      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1196        in calc_gw.F
1197      - defaults to viscAh
1198      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1199        friction or Leith) in non-hydrostatic mode, as long as there is
1200        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1201    o pkg/cost
1202      extend simple cost functions to treat time mean quantities
1203      (T,U,V) via cost_accumulate_state from cost_tile
1204    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1205        be 2 times larger than the minimum size the advection scheme requires.
1206        now get a perfect conservation of salt in advect_cs test-exp (updated)
1207    o GGL90 (Gaspar's TKE mixed layer)
1208      - add horizontal diffusion of TKE, requires exchanges in
1209        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1210        default. In OPA there is no horizontal diffusion of TKE but the
1211        mixing coefficients are computed from a horizontal average of TKE of
1212        6 points or so. I think that diffusion has a little more physical
1213        justification.
1214      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1215        was in vain)
1216      - mask tke-variable in ggl90_init
1217    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1218    o fix biharmonic diffusion on CS-grid.
1219    o more obcs stuff
1220      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1221        for reading boundary values. This routine is called from
1222        obcs_prescribe_read
1223      - updated obcs_check
1224      - changed sponge layer relaxation parameter units for days to seconds
1225      - turned off sponge layer by default
1226      - changed argument list of OBCS_CALC to myTime+deltaTclock
1227      - fixed about 35 bugs in obcs_external_fields_load
1228    
1229    checkpoint55c_post
1230    o obcs stuff
1231      - new runtime flags useOBCSprescribe, useOBCSbalance
1232      - re-arranged obcs_calc
1233      - moved exf_getobcs to obcs_prescibe_read
1234        obcs_prescibe_read is called after ORLANSKI stuff
1235        and independent of it (executable can contain all).
1236      - updated obcs_check
1237      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1238        These may be necessary only if tangential velocities are
1239        prescribed at OB, not sure, needs testing.
1240    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1241      which simplifies the calls and passes the ifc check-bounds test
1242    
1243    checkpoint55b_post
1244    o add a 2D scalar, Z location, exchange_2 routine.
1245    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1246      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1247      affects advect_cs results (for the wrong reason): update output.txt
1248    o use a more standard discretization for biharmonic viscosity ;
1249     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1250      affects results of dome set-up: update output.txt
1251    o fix gad_advection.F (CubedSphere part), back to version 1.23
1252    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1253    
1254    checkpoint55a_post
1255    o merged code to
1256      * prescribe/read time-dependent open boundaries
1257        (works in conjunction with exf, cal)
1258      * sponge layer code for open boundaries
1259      * each boundary N/S/E/W now has its own CPP option
1260        (healthy for the adjoint)
1261    
1262    checkpoint55
1263    o up-to-date adjoint of previous breaks
1264      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1265      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1266      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1267      - carbon: * remove tr1-related adjoint verification
1268                * add ptracer as control variable
1269    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1270      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1271    
1272    checkpoint54f_post
1273    o in verification/carbin/ remove experiment related to
1274      ALLOW_PASSIVE_TRACER (array tr1 etc)
1275      code_ad/ input_ad/ results_ad
1276    
1277    o add two new packages
1278      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1279        + subject to optimization (memory)
1280      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1281        + subject to reordering (many GOTOs in the original code)
1282        + so far opps is called for every (i,j) point, and then operates in
1283          the vertical; one may want to reorder the scheme in order operate in
1284          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1285          fields)
1286    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1287      - all verification tests compile and run with linux_ia32_g77
1288      - defaults are compatible with current input files--nothing
1289        should change if you were not previously using MNC
1290      - MNC output has been added in numerous places (eg. timeave)
1291        but there are still a few writes not yet do-able with MNC
1292        (this is in progress)
1293      - flags now allow for either/or/both use of MDSIO and MNC and
1294        documentation will soon follow
1295      - numerous small formatting cleanups for ProTeX
1296    o add version info (via BUILD_INFO.h) to MNC and stdout
1297    
1298    checkpoint54e_post
1299    o add two new packages
1300      - pp81 (Packanowski and Philander, 1981), Richardson number and
1301        stratification dependent mixing
1302      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1303      - these scheme operate in a similar manner as KPP (without ghat, of
1304        course), however there is only one diffusivity that is used for both
1305        temperature and salinity (and passive tracers)ç
1306    o add offline package
1307    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1308      provided by Stephanie Dutkiewicz
1309    o genmake2: add ability to search for C compilers and cleanup test output
1310      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1311    
1312    checkpoint54d_post
1313    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1314    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1315      leading to additional shift by 5 days each year of integration
1316       (i.e. leading to considerable offset over the years)
1317    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1318    o start with no AB and no initial filtering (staggerTimeStep):
1319      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1320    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1321      (external loading & cpl import/export stay in forward_step.F)
1322    o update coupling interface to work with new staggerTimeStep
1323    o change MDSIO ptracers_pickup.
1324    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1325    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1326    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1327    
1328    checkpoint54c_post
1329    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1330      this affects (truncation error) output.txt of test-exp:
1331       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1332    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1333    o change Qnet to always be the net heat flux, (+upward).
1334      affects (truncation error) output of natl_box exp.: updated
1335    o define the max number of passive tracers in PTRACERS_SIZE.h
1336    o start to test mnc routinely in exp0
1337    o add sea-ice loading (sIceLoad) as a new forcing field.
1338    
1339    checkpoint54b_post
1340    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1341       impressive on Altix and Opteron systems)
1342    o diagnostics can now write NetCDF files through the mnc package
1343    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1344    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1345    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1346      affects (truncation error) output of lab_sea & natl_box exp.: updated
1347    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1348    
1349    checkpoint54a_post
1350    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1351    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1352    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1353    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1354      + internal_wave (shift in writing cg2d_ini_res)
1355    checkpoint54a_pre
1356    
1357    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1358      - modified verification/lab_sea and natl_box_adjoint accordingly
1359    
1360    checkpoint54
1361    checkpoint53g_post
1362    o prepare splitting of thermodynamics: store convect.counter in common block
1363    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1364      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1365    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1366    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1367    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1368    o restore adjointability
1369    
1370    checkpoint53f_post
1371    o modifications that affect AIM experiment results (update output.txt):
1372      - no advection of S at top interface Nr (pkg/generic_advdiff)
1373      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1374    o AIM pkg:
1375      - include stability function into surf.Flux derivative relative to Tsurf
1376      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1377    
1378    checkpoint53e_post
1379    o merged cylindrical coord configuration
1380    o added rotating_tank experiment
1381    checkpoint53e_pre
1382    
1383    checkpoint53d_post
1384    o faulks upgraded: re-generate output.txt that have changed:
1385       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1386    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1387    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1388    o added Sadourny discretization of Coriolis
1389      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1390      - re-enabled use of omega3 (useAbsVorticity)
1391    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1392      vector-invariant equations
1393      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1394    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1395      hopefully without new bugs
1396      - still to do: biharmonic friction for non-hydrostatic w
1397    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1398    o regenerated output for global_ocean_ebm (using -ieee)
1399    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1400      of mom_common/
1401      - simple re-arrangement of instructions within computing loop
1402    checkpoint53d_pre
1403    
1404    checkpoint53c_post
1405    o new version of coupler for AIM+thSIce and Ocean models
1406     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1407     - land: change Evaporation of snow
1408     - aim with thSIce: fix bug in snow-precip.
1409    o changes to calc_gw.F
1410     - bug fix for w^2 term near the bottom boundary
1411     - (hopefully) improve the lateral slip boundary condtions for use with
1412        partial/looped cells
1413      - because the bug fix changes two verification experiments anyway (exp5
1414        and plume on slope), change the lateral boundary condition from half slip
1415        to the value of no_slip_sides
1416    o ebm package wasnt quite up to the parallel task. Fixed that.
1417    o Adjoint of EBM package + verification
1418      * TLM OK
1419      * ADM not sufficient accuracy yet (needs further testing)
1420    
1421    checkpoint53b_post
1422    o Commiting new energy balance model to repository
1423      * package is pkg/ebm
1424      * verif. is verification/global_ocean_ebm
1425      * references are in ebm_driver.F
1426    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1427    C        Global thermohaline circulation. Part I:
1428    C        Sensitivity to atmospheric moisture transport.
1429    C        J. Climate 12(1), 71-82
1430    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1431    C        Global thermohaline circulation. Part II:
1432    C        Sensitivity with interactive transport.
1433    C        J. Climate 12(1), 83-91
1434    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1435    C        Destabilization of the thermohaline circulation
1436    C        by atmospheric eddy transports.
1437    C        J. Climate 7(12), 1870-1882
1438    o Will need long integration testing.
1439    checkpoint53b_pre
1440    
1441    o created pkg/mom_common in preparation for variable viscosity code
1442    o renamed and split ini_mnc_io
1443    o pkg/land: only liquid water can diffuse or run-off
1444    o AIM using land: soil wetness availability account for snow
1445    o added printMapIncludesZeros to EEPARMS namelist
1446    
1447    checkpoint53a_post
1448    o restore TAMC compatiility for exf_constants.h
1449      (no usage of _d in .h)
1450    o Additional storing in KPP in an attempt to fix
1451      TAMC problem with adjoint of KPP code.
1452      (no success...)
1453      Identical code works fine with TAF.
1454    o Fixed verification/natl_box_adjoint experiments.
1455      Initial conditions for Experiments 4 and 5 are now
1456      set to "SEAICE_initialHEFF=0", which is more reasonable,
1457      and hence gives results closer to that of Experiment 2.
1458      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1459    
1460    checkpoint53
1461    o stable checkpoint with up to date adjoint
1462      TLM tests only run for 1st grdchk at the moment. Its unclear if
1463      this is a code problem or a problem with resetting code for g_
1464      variables that is being autogenerated wrong.
1465      Otherwise:
1466       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1467       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1468         are both still in chaos following their security messes.
1469    
1470    checkpoint52n_post
1471    o various build (mostly genmake2) changes including:
1472      - ability to build/run more easily within Cygwin and MacOS X
1473      - more complicated Makefiles with a stronger dependence on Gnu Make
1474    o pkg/seaice modifications
1475      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1476        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1477        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1478      - changed proxy for geostrophic velocity and updated
1479        verification/lab_sea/results/* accordingly
1480      - removed ADI dynamic solver from pkg/seaice
1481      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1482        they caused a segmentation fault under certain circumstances
1483      - removed unused field WATR
1484    o bug fix in exf-package:
1485      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1486         now reflect that.
1487    o small fixes in the cal-package:
1488      - set reference date to first of January for the 'model'-calendar
1489      - failing of cal_CheckDate in cal_FullDate now actually results in a
1490        warning
1491    o small modifications in exf-package to increase flexibility:
1492      - change climtempfreeze from a constant to a runtime parameter that
1493        is specified in data.exf_clim (default = -1.9)
1494      - introduce runtime parameter windstressmax (default = 2.0) that is
1495        specified in data.exf
1496    o fix in pkg/thsice:
1497      - update Evap (Tsf changes) to be consistent with Latent heat flux
1498      - maintain snow precipitation unchanged (even if Tsf >=0).
1499     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1500    
1501    checkpoint52m_post
1502    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1503      this does not change any of the results, because myIter=0 in swfrac always
1504      lead to jwtype=2 (the default anyway), but the call makes little sense
1505      as a default
1506    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1507    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1508      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1509    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1510    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1511    o extending useSingleCpuIO option to work with new exch2 I/O format
1512      - old-style, missing-tile I/O is still accessible by defining CPP
1513        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1514    o monitor package can write to NetCDF files and/or STDOUT
1515    o fix re-definition bug in MNC_GRID_INIT_ALL()
1516    o doc/api_reference added
1517      - a framework for building an API Reference Manual using all
1518        the "protex" comments embedded in the code
1519      - see pkg/generic_advdiff, pkg/mnc for examples
1520    o MNC:
1521      - make myThid the last argument for all subroutines
1522      - new default for the grid files: NO halos
1523      - add useMNC and other run-time flags
1524      - separate per-file-group handling of the unlimited dimension
1525      - early initialization of MNC w/ flags read at the eeboot stage
1526        and lookup tables set in initialize_fixed
1527      - write all MNC output to a freshly-created directory
1528    o thermodynamics sea-ice (thsice) is now tested with testreport.
1529    o test exp. advect_cs: use the standard cs32 grid ; update output.
1530    o Added functionality to grdchk:
1531      pick global i,j,k position (or nearest wet) where to perform check.
1532    
1533    checkpoint52l_post
1534    o new land formulation:
1535      a) use ground enthalpy as prognostic variable to ensure exact
1536         energy conservation.
1537      b) account for water temperature and for latent heat of freezing
1538         in all processes (rain, run-off, ground storage)
1539      c) compute surface and ground temperature implicitly.
1540    o aim_v23 modification for new land model:
1541      a) Treat separately land / ocean / sea-ice surface fluxes
1542         to allow implicit computation of land & sea-ice surface temp.
1543      b) add snow precipitation.
1544    checkpoint52l_pre
1545    
1546    o fix problem (when 1 tile is empty) in min/max monitor.
1547    o fix bug in timeAve (u,vZetatave in common block)
1548    o no restoring terms under ice for pkg/seaice
1549    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1550    o bug fix for pkg/seaice pickups
1551    o change MNC call locations and add coordinate attributes
1552    o mask vorticity at the corner ; affects global_ocean.cs output
1553    o fix ini_curvilinear_grid ; test CS experiments with mpi
1554    o aim.5l_cs: modify sea-ice fraction input file ; update output
1555    o exf: Adding simple range check routine for exf fields after read
1556    
1557    checkpoint52k_post
1558    o removed top-level directory "diags"
1559      - we migrated these functions to pkg/timeave a long time ago
1560    o fixed bug introduced in pkg/monitor
1561    o accuracy ctrlprec = 32 insuffient for gradient checks using
1562      averaged fields (I/O via cost_averages)
1563      -> use ctrl.h in active_file*.F to control I/O precision.
1564    o paramter list of CALL ADTHE_MAIN_LOOP
1565    o added initial do_the_model_io to ecco
1566    o set all ...Freq to zero after cost_final
1567      taveFreq, dumpFreq, pChkptFreq
1568    o MAIN and ECCO differentiability restored
1569    
1570    checkpoint52j_post
1571    o fix nchklev in tamc.h for global_ocean...
1572    o Bringing flow and store directives up-to-date
1573    o Really weird thing!
1574      call do_the_model_io from the_main_loop with parameters
1575      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1576      TAF places a faulty re-call of initialise_varia
1577      after cost_final call which should not be there!
1578    checkpoint52j_pre
1579    
1580    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1581      error messages
1582    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1583    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1584      debug output
1585    o modfied mdsio_writefield.F to handle non-global files under exch2
1586    o update AIM Cubed-Sphere exp (aim.5l_cs):
1587      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1588    o update AIM Equatorial Channel exp:
1589      use standard aim_v23 pkg and change the SST fields to be more realistic.
1590    o globalFile now works with exch2
1591    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1592      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1593    o limit timeave output for hi-res integrations
1594    
1595    checkpoint52i_post
1596    o removed CPP_EEOPTIONS.h from verification/*/code
1597    o updated the tiling for global_ocean_pressure
1598    checkpoint52i_pre
1599    
1600    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1601      the old pkg/aim).
1602    
1603    checkpoint52h_pre
1604    o shortened offending lines in exch2_send_rx?.template
1605    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1606    o genmake2: add build & execute test for NetCDF code
1607    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1608      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1609    o added useSingleCPUIO flag to monitor.F and mon_out.F
1610    o added temporary hack for sea-ice dynamics on the cube:
1611      metric terms are ignored and it is assumed that
1612      there is no sea-ice on cube faces 1, 2, 4, and 5.
1613    
1614    checkpoint52f_post
1615    o added exch2 cube routines to pkg/exch2
1616    o modified hs94.cs-32x32x5 to use it
1617    o added new grid files to hs94.cs-32x32x5
1618    checkpoint52f_pre
1619    
1620    checkpoint52e_post
1621    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1622      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1623    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1624      to work with implicit vertical advection and AB ;
1625    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1626    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1627     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1628    checkpoint52e_pre
1629    
1630    o fix bug in impldiff when Nr=1 or Nr=2.
1631    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1632    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1633    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1634      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1635    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1636    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1637    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1638    
1639    checkpoint52d_post
1640    o re-tiled many expts to allow comparison in multi-processor mode
1641      - updated output accordingly
1642      - changed hs94.128x64x5 to use intial T from file rather than use the
1643        random number generator
1644    o add infrastructure in model routines for fizhi and gridalt packages
1645    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1646    o changes to permit hi-res, cubed-sphere, configuration
1647      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1648      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1649      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1650        of surface winds for the cube
1651      (A verification experiment, based on global_ocean.cs32x15, but with
1652       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1653       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1654       complete with example surface forcing files and matlab scripts to look
1655       at the output and compare it with that of global_ocean.cs32x15.)
1656    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1657       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1658       to conform to the common rule.
1659    o check-in the first version of the coupler + interfaces for multi-components
1660       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1661       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1662       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1663       - ocean and atmos. share the same horizontal grid (no interpolation).
1664       - exchanges between component and coupler is done in forward_step
1665    o new verification experiment, cpl_aim+ocn:
1666       coupled ocean - AIM atmosphere on cs32 grid.
1667    
1668    checkpoint52d_pre
1669    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1670    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1671    
1672    checkpoint52c_post
1673    o Fixing OPTIONS files for use of exf:
1674      - ALLOW_ECCO not needed
1675      - ECCO_CPPOPTIONS.h should not be included from
1676        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1677        as has been the case in the past
1678      - All cal/exf related options are currently set in
1679        single header file. Should remain so until we
1680        agree on a consistent new policy.
1681    o Removed all CPP options for cal package.
1682      cal has no more CPP options.
1683    o modified STOREs in GAD_ADVECTION
1684    o corrected key comp. for passkey
1685    
1686    checkpoint52b_post
1687    o new version: "thsice" of thermodynamic sea-ice pkg:
1688     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1689     - modify fluxes but do not change theta directly;
1690     - light cleaning of bulk_force pkg (still needed with thsice).
1691     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1692       + output_thsice.txt to test thsice & bulk_force pkgs.
1693    o put back grid & coriolis monitor output.
1694    checkpoint52b_pre
1695    
1696    o call "do_the_model_io" at the beginning (=> dump initial state)
1697    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1698    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1699      (need info on NUMBER_OF_PTRACERS)
1700    o missing PTRACERS headers in some routines
1701    o default tamc.h in pkg/autodiff supposed to crash
1702      to ensure proper customization
1703    
1704    checkpoint52a_post
1705    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1706      - moved surfaceTendencyTice from pkg/seaice to main code
1707      - subroutine FREEZE_SURFACE now limits only surface temperature
1708        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1709        => new output.txt for global_ocean.cs32x15 & global_with_exf
1710      - keep the old version of FREEZE for backward compatibility;
1711        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1712      - corresponding modifs for TAF directives
1713    o added surface flux output variables to TIMEAVE_STATVARS
1714    o time-averaged output for pkg/ptracers
1715    o fix problem with ECCO-related divided adjoint
1716      snapshot file was missing some ad-variables,
1717      but no warning issued by TAF
1718    
1719    checkpoint52a_pre
1720    o some bug fixes for #undef REAL4_IS_SLOW
1721    
1722    checkpoint52 = ecco_c52_e35
1723    o after testing adjoints of checkpoint51u_post
1724    
1725    checkpoint51u_post
1726    o this is the post-merge tag of the ecco-branch
1727      (needs another clean checkout and re-testing)
1728    o various natl_box_adjoint configs and results
1729      but no input fields
1730    o obcs adjoint not yet merged!
1731    o adding ECCO global 1x1 and 2x2 degree configs
1732    o updated/extended some store directives for seaice
1733    o pkg/ecco now containes ecco-specific part of cost function
1734    o top level routines the_main_loop, forward_step
1735      supersede those in model/src/
1736      previous input data.cost now in data.ecco
1737      (new namelist ecco_cost_nml)
1738    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1739    
1740    checkpoint51t_post
1741    o this is the pre-merge tag of the ecco-branch
1742    
1743    checkpoint51s_post
1744    o cleanup: removed various obsolete #define-s
1745    o pkg/grdchk
1746      - renamed 'ph-grd 3' to 'grad-res'
1747      - merged from ecco-branch
1748        (remaining bug fixes for obcs gradient checks)
1749      - additional high-precision output for testreport
1750        (grep for 'precision_grdchk_result')
1751    
1752    checkpoint51r_post
1753    o cleaned up or removed CPP_OPTIONS.h files
1754    o updated results for some of the tests to reflect the new
1755      optfiles (-ieee: -O0 instead of -O3)
1756    
1757    checkpoint51q_post
1758    o cd_code:
1759      - moved cd_scheme.F -> cd_code_scheme.F
1760      - separate read_checkpoint from cd_code_ini_vars.F
1761      - separated cd_code part from write_checkpoint
1762      - updated AD_SOURCE, generated .flow
1763      - added CD_CODE_VARS.h to the_main_loop
1764      - Moving cd_code specific store dir.s to pkg/cd_code
1765    o ctrl package totally restructured
1766      - pack/unpack now optional and decoupled from
1767        xx_/adxx_ I/O
1768      - ctrl_pack/unpack cleaned
1769        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1770      - confined inclusion of AD_CONFIG.h to where necessary.
1771    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1772    
1773    checkpoint51p_post
1774    o create initial cd_code package
1775      - WARNING: the initialization of fields within packages
1776        is broken because INI_FIELDS (where READ_CHECKPOINT is
1777        called) is called *before* PACKAGES_INIT_VARIABLES.
1778        This seems to be backwards since
1779        1) its important to initially zero the entire field including
1780           the "halo" region
1781        2) zeroing needs to be done *before* reading pickup info
1782           and the pickup call might or might not happen in any
1783           particular run
1784      - this needs an overhaul for R2
1785    o cleanup verification/*/code/GMREDI_OPTIONS.h
1786    o cleanup testreport
1787    
1788    checkpoint51o_post
1789    o bringing AD-related verif's up to date with genmake2
1790      - carbon/
1791      - global_ocean.90x40x15/
1792      - hs.94.1x64x5/
1793      - (front_relax/ )
1794    o (more) consistent directory structure for AD-related verif.'s
1795    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1796    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1797    o bug fix in find_alpha.F for MDJWF:
1798      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1799        change rho -> rho-rhoConst
1800      - replace call find_rho to find_rhonum
1801    o initialisation of rFlx extended to full array (required by TAF)
1802      and shifted to thermodynamics
1803    o removed PTRACERS.h in ptracers routine
1804    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1805    o Correcting initialisations for fVerU, fVerV.
1806    o helping TAF to recognize dependency on kUp for
1807      fVerU, fVerV
1808    o Replacing delZ by delR in pkg/ctrl/
1809    checkpoint51o_pre
1810    
1811    o undid all of cp51 pending some cleanups and discussion
1812    o added the [#include "AD_CONFIG.h"] statement to all files that need
1813       it for adjoint/tl #defines
1814     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1815     o removed tools/genmake since it no longer works
1816    
1817    checkpoint51n_post
1818    o modifications to make FREEZE flux visible to pkg/kpp
1819      - moved surfaceTendencyTice from pkg/seaice to main code
1820      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1821      - subroutine FREEZE now limits only surface temperature
1822        (this means new output.txt for global_ocean.90x40x15,
1823         global_ocean.cs32x15, and global_with_exf)
1824    o added surface flux output variables to TIMEAVE_STATVARS
1825    
1826    checkpoint51n_pre
1827    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1828    o added [#include "AD_CONFIG.h"] to all files that use the following
1829      defines:
1830      - ALLOW_ADJOINT_RUN
1831      - ALLOW_TANGENTLINEAR_RUN
1832      - ALLOW_ECCO_OPTIMIZATION
1833    
1834    checkpoint51m_post
1835    o incorporating changes to get TAMC/TAF working in genmake2
1836      - added new TAMC/TAF targets to the Makefile
1837      - various cleanups related to package handling
1838      - these changes should have no impact on the forward model
1839    
1840    checkpoint51l_post
1841    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1842     - faster algorithm for cal_addtime.F
1843     - higher precision arithmetic, where needed
1844     - pkg/exf *startdate variables changed from calendar date to
1845       model integration time
1846    
1847    checkpoint51l_pre
1848    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1849    o enable to apply restoring on S & T only in a latitude band.
1850    o update output (external_forcing_surf modif. change truncation errors)
1851       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1852    
1853    checkpoint51k_post
1854    o change default to: useNHMTerms=.FALSE.
1855     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1856       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1857     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1858        exp1, ideal_2D_oce
1859     - change data file of oceanic exp (leave the results unchanged for now)
1860       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1861    o set gravitySign automatically according to the vertical coordinate used
1862      (and change sign: back to "logical" value: +1 when R increases downward)
1863    o added an include barrier to the default CPP_OPTIONS.h and
1864      removed the #include "PACKAGES_CONFIG.h" from it
1865    o fix a bug in mom_fluxform (from chk51j_post)
1866    
1867    checkpoint51j_post
1868    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1869    o adjusted some flow directives (dynamics, thermodynamics)
1870    o added cubed-sphere case to test cost function
1871    o heckpoint_lev?_directives.h now include
1872      pkg-specific directives, whenever those are enabled.
1873    o Moving pkg-specific flow directives to corresponding pkg
1874      Moving pkg-specific differentiation list to corresponding pkg
1875      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1876      ---> conventions are
1877           - pkg_ad.flow
1878           - pkg_ad_diff.list
1879           - pkg_ad_check_lev?_dir.h
1880    
1881    checkpoint51i_post
1882    o merge of the branch-genmake2
1883      - knowingly breaks the older genmake
1884      - automatic generation of all ALLOW_${PKG_NAME} defines
1885      - new testreport supersedes older testscript
1886    o large number of package inclusion and header cleanups
1887    checkpoint51i_pre
1888    
1889    o new output for adjoin of global ocean vector invariant
1890    o fix for checkpoint of thermodynamic seaice and bulk_force
1891    o Steph gchem various cleanups
1892    
1893    checkpoint 51h_pre
1894    o fixed some single quotes
1895    o modify gchem pkg to be more versatile
1896    o modifications to clean up dic pkg
1897    o add pkg/cfc
1898    
1899    checkpoint51g_post
1900    o provide links for ARPACK and ADM*TLM
1901    o start removing verification/vero/
1902    o update AD-related stuff
1903      (in particular some IF-statements in model/src/ routines)
1904    o adding to verification/global_ocean.90x40x15/ adjoint of
1905      vector invariant setup
1906    
1907    checkpoint51f_post
1908    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1909    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1910      of tracer Green's fucntions for ocean inversion project.
1911    
1912    checkpoint51f_pre
1913    o Added on-the-fly spatial interpolation capability
1914        "USE_EXF_INTERPOLATION" to pkg/exf.
1915      - This is a temporary Cartesian-grid hack until
1916        the super-duper ESMF coupler becomes available.
1917      - See verification/global_with_exf/README for usage example.
1918      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1919        flags and modified pkg/seaice accordingly.
1920    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1921        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1922        non-local transport term.
1923    
1924    checkpoint51e_post
1925    o pkg/mom_vecinv:
1926      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1927      - add time-ave diagnostic of vorticity advection.
1928    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1929    o atmospheric geopotential: - include water vapor effect;
1930                                - use p^kappa in p* scaling.
1931    o land pkg: read initial state from files.
1932    o AIM : add stratospheric drag in the upper level
1933    
1934    checkpoint51d_post
1935    o change function ILNBLNK (=> last non-blank char.) to return zero
1936      (instead of the string length) when the string. char is empty
1937    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1938    o modif's to restore TAMC compatibility
1939      - avoid "_d" constructs in PARAMETER declarations
1940      - avoid interrupting lines by comment lines
1941    o Use cluster local disks for purely local I/O
1942      vs. globally visible disks needed for ctrl stuff
1943      (merged from ecco-branch)
1944      - new active_file_loc... and mdsio_..._loc routines
1945      - affected packages: autodiff, ctrl, grdchk, mdsio
1946    
1947    checkpoint51c_post
1948    o introducing integer flag debugLevel
1949      - debLevZero: suppress all output
1950      - debLevA: standard
1951      - debLevB: equivalent to current debugMode=.TRUE.
1952    o introducing pathname variable mdsioLocalDir for mdsio
1953      that can be specified at runtime
1954      (relevant for cluster I/O to local disk)
1955    `
1956    >>>checkpoint51b_post
1957    adjoint of ptracers
1958    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1959    o extended state in checkpoint_lev?, etc.
1960    o alternative ctrl/cost with tr1 or ptracer
1961    o new comlev1_bibj_ptracers
1962    o new ptracers.flow
1963    o made ptracers_forcing same as external_forcing_s
1964    o added verification for adjoint with ptracers
1965      - adm. grdchk fail so far
1966      - tlm. grdchk OK
1967      - checked tapelev/comlev recomputations: OK
1968    <<<checkpoint51b_pre
1969    
1970    checkpoint51a_post
1971    o added code for biogeochemistry package
1972      - new pkgs: dic, gchem
1973      - new subroutine in ptracers
1974    o modify code for biogeo packages
1975      - in model/src and pkg/ptracers
1976    
1977    checkpoint51
1978    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1979      - autodiff, ctrl, exf, grdchk, seaice
1980      kept separate packages
1981      - cost, ecco, obcs
1982    o updating verification/internal_wave, verification/lab_sea
1983      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1984    
1985    checkpoint50i_post
1986    o Preparing next differentiable checkpoint and sync
1987      of MAIN vs. ecco-branch
1988      - 1st step: this one is differentiable
1989      - 2nd step: next(! not this) checkpoint will have updated packages
1990                  from ecco-branch)
1991    
1992    checkpoint50h_post
1993    o new package "land": provide surface BC for AIM.
1994    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1995    o AIM: use true log-P extrapolation for near surface temp (= as in
1996        F.Molteni paper) ; update aim.5l_cs output.
1997    o New variable in PARM03 for more flexible pickups
1998    o somewhat cleaned package initialisation sequence for
1999      ctrl/ cost/ ecco/ in packages_... routines
2000    
2001    checkpoint50g_post
2002    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2003      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2004      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2005        made the default because of faster convergence than ADI
2006    
2007    checkpoint50f_post
2008    o exf totally restructured
2009      - replaced all exf_set_ routines by one generic exf_set_gen.F
2010        and made sure it's still differentiable
2011      - split exf_getffields.F into new exf_bulkformulae.F
2012      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2013      - updated adjoint/makefile and relevant verif. accordingly
2014    
2015    checkpoint50f_pre
2016     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2017          + change Evap over land. (update aim.5l_cs output)
2018     o added missing .cvsignores and made uniform across expts
2019     o changed configuration of tidal_basin_2d expt
2020     o added pkg/debug functions for tracing code in fatal crashes
2021     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2022     o new fn in pkg/monitor to stop model if solution grows too big
2023     o removed lots of single quotes from comments
2024    
2025    checkpoint50e_post
2026    o make KPP work with PTRACERS
2027     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2028       nearly a copy of kpp_transport_s
2029     - there is no analogue to SurfaceTendencyS, so I have to use
2030       gPtr(of the surface layer) instead
2031    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2032    checkpoint50e_pre
2033    
2034    checkpoint50d_post
2035    o change kpp output from multiple-record state files to single-record state
2036      files analogous to write_state.F
2037    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2038      analogous to the cg2d-related output.
2039    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2040      so that writing to internal file fn (with length 512) fails.
2041    checkpoint50d_pre
2042    
2043    checkpoint50c_post
2044    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2045    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2046    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2047    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2048    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2049    
2050    checkpoint50c_pre
2051    Merging from release1_p13:
2052    o bug fix for pkg/seaice dynamic solver
2053    o Added SEAICE_initialHEFF to pkg/seaice
2054    
2055    checkpoint50b_post
2056    o store u*,v* in gU,V instead of in guNm1,gvNm1
2057    o in order to put the momForcing out of the Adams-Bashforth:
2058      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2059      to timestep.F
2060    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2061    o re-generate output for highly sensitive test-exp:
2062       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2063    
2064    checkpoint50b_pre
2065    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2066    o corrected CPP option mismatch in exf_Bulk... functions for case
2067      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2068    
2069    checkpoint50a_post
2070    o Bug fix for merging between c50 and KPP.
2071      ikey was passed from thermodynamics to kpp_calc via
2072      common block rather than being recomputed in kpp_calc,
2073      in contradiction with new key itdkey.
2074      New key ikppkey created, and tamc.h headers updated.
2075    
2076    checkpoint50
2077    - 2nd step of merge with ecco-branch:
2078      merge changes in ecco-branch back into main trunk
2079    - bug fix in find_alpha
2080    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2081    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2082    - merged some sliced AD support routines
2083    
2084    checkpoint49
2085    merged from ecco-branch:
2086    o exf:
2087      - Enable initialisation of forcing fields to constant
2088        (runtime) values.
2089      - in exf_getffields.F
2090        Reduce i-/j-loop to interior domain, discarding overlaps.
2091        That also fixes wrong TAF-key computations for key_1, key_2
2092        with bulf formulae.
2093      - exf_init.F modify #ifdef for exf_init_evap
2094      - exf_getffieldrec.F, ctrl_getrec.F
2095        The following INT-usages are not safe:
2096          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2097          fldcount = int(fldsecs/fldperiod) + 1
2098        and were modified.
2099    o autodiff: checkpoint_lev...
2100      - updated storing for bulk formulae (some arrays were missing)
2101      - added state for seaice package
2102      - synchronized with main branch
2103    o DIVA:
2104      Modif.s in
2105      - the_main_loop.F
2106      - the_model_main.F
2107      and added cost_final_restore.F cost_final_store.F
2108      o With these changes, it is possible to fully separate
2109        the first forward run to compute the cost function (mdthe_main_loop)
2110        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2111        into separate model executions.
2112        This enables better tuning of DIVA to given queue sizes.
2113      o Loss of cost function value in consecutive DIVA runs is
2114        fixed by storing to 'costfinal' file.
2115      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2116        beginning/end of adjoint integration is accounted for.
2117      The current changes apply to TAF-1.4.26.
2118      TAF has one remaining bug, requiring one manual change
2119      (see MITgcm manual).
2120    o cal: synchronized between MAIN and ecco-branch
2121    
2122    checkpoint48i_post
2123    o Changes to restore differentiability of code w.r.t. previous tag
2124      (mostly adding new routines to make list and replacing
2125      pressure by totPhiHyd).
2126    o Updated and merged grdchk package
2127      - has both ADM and TLM checks
2128      - works for single- and multi-proc.
2129      - output cleaned
2130      - worked successfully for parallel DIVA
2131    o genmake:
2132      - Adding -platform=SP4
2133      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2134    o Modif. for DIVA:
2135      ctrl_unpack should not be called in intermediate DIVA interval.
2136      (similar thing would apply for active files such as
2137      tbar, sbar, psbar, which should not be reinitialised;
2138      only relevant for ecco-branch)
2139    
2140    checkpoint48h_post
2141    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2142    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2143    o Added SEAICE_initialHEFF to pkg/seaice
2144    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2145    
2146    checkpoint48g_post
2147    --- EOS:
2148    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2149      store total Potential in totPhyHyd for diagnostics & EOS.
2150    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2151    --- Pressure/geopotential gradient:
2152    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2153    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2154      ( changes results of global_ocean_pressure )
2155    o NLFS + z-coord.: add eta*Rho' contribution.
2156    o accurate phiHyd when using interface-W at the middle between 2 centers
2157     ( changes results of ideal_2D_oce )
2158    o includes r* 2nd term in potential gradient.
2159    
2160    checkpoint48f_post
2161    Merging from release1_p12:
2162    o Modifications for using pkg/exf with pkg/seaice
2163      - improved description of the various forcing configurations
2164      - added basic radiation bulk formulae to pkg/exf
2165      - units/sign fix for evap computation in exf_getffields.F
2166      - updated verification/global_with_exf/results/output.txt
2167    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2168      (SBO) core products, including oceanic mass, center-of-mass,
2169      angular, and bottom pressure (see pkg/sbo/README.sbo).
2170    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2171      to avoid negative values in shallow regions.
2172      - updated verification/natl_box/results/output.txt
2173      - updated verification/lab_sea/results/output.txt
2174    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2175    o Added useSingleCpuIO option (see PARAMS.h).
2176    o Updated useSingleCpuIO option in mdsio_writefield.F to
2177      work with multi-field files, e.g., for single-file pickup.
2178    o pkg/seaice:
2179      - bug fix in growth.F: QNET for no shortwave case
2180      - added HeffFile for specifying initial sea-ice thickness
2181      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2182    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2183      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2184    o pkg/seaice:
2185      - adjoint-friendly modifications
2186      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2187    
2188    checkpoint48e_post
2189    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2190    o dynamics: change definition of computational domain & adapt mom_fluxform
2191      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2192    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2193        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2194        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2195        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2196        inverted_barometer solid-body.cs-32x32x1
2197      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2198    
2199    checkpoint48d_post
2200    o in preparation for r*:
2201     a) use pre-computed gradient of hydrostatic potential:
2202        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2203     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2204        => affects results of glob_oce_pressure (different truncation error)  
2205      update output.txt of ideal_2D_oce & global_ocean_pressure
2206    
2207    checkpoint48d_pre
2208    o in preparation for r*:
2209      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2210      pass the 2 comp. of the grad. as arguments to momentum S/R.
2211      but for the moment, only used if it does not change the results.
2212    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2213    
2214    checkpoint48c_post
2215    Modifications in treatment of initial flux forcing controls
2216    to avoid extra storing of flux fields.
2217    
2218    checkpoint48c_pre
2219    o Added tidal_basin_2d experiment (currently 1D!)
2220    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2221    
2222    checkpoint48b_post
2223    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2224     (modification to pressure gradient not yet implemented)
2225    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2226      (for U & V) that are used for vertical advection of momentum.
2227    
2228    checkpoint48a_post
2229    o In preparation for r*, use temp. array to compute vertical transport
2230       in flux-form momentum pkg. => change results of few test-exp.
2231      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2232                        lab_sea, natl_box & plume_on_slope
2233    
2234    checkpoint48
2235    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2236    
2237    checkpoint47j_post
2238    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2239    o moved adexch from forward_step to addummy_in_stepping
2240    o added exch in ctrl_map_...
2241    o aveFreq.=0. at end of cost_final to avoid overwrite in
2242      reverse checkpointing loop
2243    o Yet more changes in gmredi:
2244      * adgmredi_calc_tensor
2245        avoiding all recomputation of gmredi_slope_limit
2246      * adgmredi_x/y/rtransport
2247        added flag for excessive storing to avoid recomp. of
2248        u/v/rtans, dTdx/y/z
2249        -> this is not really necessary and very memory-consuming
2250      * adgmredi_slope_psi:
2251        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2252      * gmredi_slope_limit
2253        re-activated full calculation of taperfct for case 'ac02'
2254    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2255    
2256    checkpoint47i_post
2257    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2258    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2259      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2260    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2261    o gmredi: fix few bugs.
2262    
2263    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2264    This will be a good checkpoint to plug into the ecco-branch.
2265    o few modif.'s to get latest version adjointed
2266      (mainly kick out code in ini_linear_phisurf)
2267    o modif's to run adjoint with exactConserv
2268    o case GM_BOLUS_ADVEC should be cleaned
2269      S/R gmredi_slope_psi should be cleaned
2270    o verification/carbon now has exactConserv=.TRUE.
2271    
2272    checkpoint47g_post
2273    o time-average AIM output: becomes independent from statvars time-average
2274      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2275    o After TAF bug fix:
2276      Tested adjoint of gmredi package.
2277      Tests were done with checkpoint47 rather than with latest
2278      checkpoint47f_post since the latter is broken for the adjoint
2279      verification/carbon/ contains both ADM and TLM gradient checks.
2280    Here they are, before they get changed/lost/stolen.
2281    Mostly modif.'s to fix numerical sensitivities.
2282    Gradient checks OK for
2283    - GM_taper_scheme:
2284      * clipping
2285      * ac02
2286      * linear
2287      * glw91
2288      * dm95
2289      * ldd97
2290    - GMREDI_OPTIONS:
2291      * GM_VISBECK_VARIABLE_K
2292      * GM_NON_UNITY_DIAGONAL
2293      * GM_EXTRA_DIAGONAL
2294      * GM_BOLUS_ADVEC
2295    in conjunction with data.gmredi parameters to be checked in
2296    in a few minutes under verification/carbon/code/
2297    
2298    checkpoint47f_post
2299    Merging from release1_p10:
2300    o modifications for using pkg/exf with pkg/seaice
2301      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2302        and SEAICE_EXTERNAL_FLUXES
2303      - pkg/exf CPP options EXF_READ_EVAP and
2304        EXF_NO_BULK_COMPUTATIONS
2305      - usage examples are Experiments 8 and 9 in
2306        verification/lab_sea/README
2307      - verification/lab_sea default experiment now uses
2308        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2309    
2310    checkpoint47e_post
2311    o created a tag prior to creating a branch
2312    
2313    checkpoint47d_post
2314    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2315      at the bottom boundary had an erroneous half slip boundary condition
2316    o added bottom drag and no slip boundary condition capabilities to
2317      oceanic pressure coordinates code
2318    o added new verification experiment global_ocean_pressure, this experiment is
2319      also described in the tutorial section of the manual
2320    checkpoint47d_pre
2321    
2322    checkpoint47c_post
2323    o Added a verification experiment for a global cubed-sphere ocean run
2324      -  verification/global_ocean.cubed32x32x30
2325      -  uses pkg/therm_seaice and pkg/bulk_forcing
2326    
2327    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2328    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2329      when using P-coordinate; only implemented for atmospheric config.
2330    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2331      NOTES: requires option NONLIN_FRSURF to be "#define".
2332    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2333    
2334    checkpoint47b_post
2335    Merging from release1_p9:
2336    o pkg/seaice
2337      - removed GOTO's and added taf directives
2338      - double precision constants to reduce the g77 (Linux)
2339        to F77 (SGI) differences reported in release1_p8
2340    o tools/genmake
2341      - added SGI options
2342    o verification/testscript
2343      - updated to that of checkpoint47a_post
2344    o verification/global_ocean.90x40x15/input/eedata
2345      - modified for SGI f77 compatibility
2346    o verification/lab_sea
2347      - added description of sea-ice model
2348      - added missing matlab routines
2349      - added test of thermodynamics parallelization
2350    
2351    checkpoint47a_post
2352    o new pkg: aim_v23
2353     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2354       for now, keep the same surface forcing as before.
2355     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2356     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2357     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2358    o add diagnostic of surface correction term in monitor output
2359    
2360    o bulk_force and therm_seaice
2361    - Two packages:  bulk_force (Bulk forcing)
2362      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2363    - Earlier integration from Stephaine Dutkiewicz
2364      and Patrick Heimbach.
2365    - Two ifdef statements for compile time,
2366       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2367    
2368    checkpoint47
2369    differentiable version of checkpoint46n_post
2370    o bug fix in quasihydrostaticterms
2371    o * "clean" adjoint code (in terms of extensive recomputations)
2372        can now be obtained for all GMREDI options (i.e. for
2373        - GM_VISBECK_VARIABLE_K
2374        - GM_NON_UNITY_DIAGONAL
2375        - GM_EXTRA_DIAGONAL
2376        - GM_BOLUS_ADVEC )
2377      * However, wrong gradient check problem remains unsolved.
2378      * New CPP options have been introduced for different
2379        tapering schemes
2380    o external_fields_load now part of differentiation list
2381    o pressure needs multiple storing;
2382      would be nice to have store_pressure at beginning or
2383      end of forward_step, e.g. by having phiHyd global (5-dim.)
2384      (NB: pressure is needed for certain cases in find_rho,
2385      which is also invoked through convective_adjustment).
2386    o recomputations in find_rho for cases
2387     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2388    o #define ATMOSPHERIC_LOADING should be differentiable
2389    o ini_forcing shifted to begining of initialise_varia
2390    o Incorporating QNVS line search routines into MITgcm
2391      (this is separate code, and therefore not under pkg)
2392      lsopt/, optim/
2393    o Updated verification/carbon/
2394      - #define GM_VISBECK_VARIABLE_K
2395      - GM_taper_scheme    = 'ldd97'    
2396    
2397    checkpoint46n_post
2398    Merging from release1_p8:
2399    o verification/natl_box:
2400      updating new external_fields_load routine
2401    o New package: pkg/seaice
2402      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2403      The sea-ice code is based on Hibler (1979-1980).
2404      Two sea-ice dynamic solvers, ADI and LSR, are included.
2405      In addition to computing prognostic sea-ice variables and diagnosing
2406      the forcing/external data fields that drive the ocean model,
2407      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2408      The implied surface heat flux is then stored in variable
2409      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2410      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2411      non-local transport term.  Because this call precedes model
2412      thermodynamics, temperature under sea-ice may not be "exactly" at
2413      the freezing point by the time theta is dumped or time-averaged.
2414      N.B.: fairly large differences in accuracy occur across
2415            different platforms/compilers; comparison between
2416            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2417            generated output gives:
2418       T           S           U           V
2419      C D M    c        m  s        m  s        m  s        m  s
2420      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2421      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2422      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2423    
2424      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2425    o GAD:
2426      - generated new common blocks to account for call of
2427        same gad routines with differing traceridentities
2428        (needed to modify tracerIdentity indices in GAD.h)
2429      - generated separate common blocks for case useCubedSphereExchange
2430        (Department of Futurology)
2431      - parameter lists to gmredi_?transport: added tracerIdentity
2432      - added new key indices to tamc.h
2433    o external_fields_load:
2434      - added this routine to TAF list
2435      - needed to make some common blocks global and additional storing
2436        along the same lines as exf package (checkpoint_lev?_directives.h)
2437    o exf:
2438      updated external forcing package
2439      - bug fixes carried over from ecco-branch
2440        (missing OBCS_OPTIONS.h in two routines)
2441      - enable easy to use "no forcing".
2442      - added exf I/O for atmospheric loading
2443      - added exf I/O for runoff data
2444      - transfered scaling between exf <-> MITgcm to exf namelist
2445    o Adding new verification experiment global_with_exf.
2446      This verification experiment is almost identical to the
2447      global_ocean.90x40x15 experiment, except that it uses
2448      the exf (and cal) package instead of the
2449      external_fields_load routine (cf README file).
2450    
2451    checkpoint46m_post
2452    o modified testscript to return -- when there are no lines of "%MON" output
2453    o added new flag "quasiHydrostatic" for QH mode
2454      and new routine quasihydrostaticterms()
2455    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2456      New routine: mom_u_coriolis_nh()
2457    o fixed sign of non-hydrostatic metric terms in u and v equations.
2458      Depend on correct sign of gravitySign.
2459    o added work.pc* to .cvsignore in aim directories using ifc
2460    o introduced flag for controllin non-hydrostatic metric terms
2461    o removed gravitySign from PARM04
2462    o switched to g77/ifc from pgf77 in aim experiments
2463    
2464    checkpoint46l_post
2465    o made convective adjustment work with pressure coordinates:
2466     - changed the direction of k-loop in convective_adjustment.F for the
2467       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2468     - adjusted the reference pressure k-index in convective_adjustment.F
2469     - adjusted the convection condition in convect.F (in analogy to
2470       calc_ivdc.F)
2471     - convective_adjustment no longer computes anything on the halos
2472     - removed the warnings about negative salinity from find_rho.F and
2473       find_alpha.F; instead the new routine look_for_neg_salinity, called
2474       at the beginning of find_rho, find_alpha, and find_beta, does a
2475       check of the entire slice, if CPP-option
2476       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2477    checkpoint46l_pre
2478    
2479    checkpoint46k_post
2480    o fixed the verification/global_ocean.90x40x15 experiment:
2481     - new bathymetry (the world according to A., JMC, and M.)
2482     - new initial fields and forcing fields (*.bin files)
2483     - new POLY3.COEFFS (for the next release one should switch to a full
2484       equation of state: JMD95P or MDJWF)
2485     - fixed several errors and redundancies in the data file
2486     - experiment uses looped cells
2487     - added matlab directory with diagnostic scripts for plotting of output
2488    
2489    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2490     - read AIM physics parameters from a file (data.aimphys)
2491     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2492    
2493    checkpoint46j_post
2494    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2495    o move wVel computation at the end of the time step, in S/R integr_continuity
2496    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2497    o update timeave pkg for wVel diagnostic.
2498    checkpoint46j_pre
2499    
2500    checkpoint46i_post
2501    o Clean up AIM package (and keep the results unchanged):
2502      include CPP_OPTION and use IMPLICT NONE in all routines ;
2503      declare all the variables _RL ; use _d 0 for all numerical constants.
2504      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2505    
2506    checkpoint46h_post
2507    o cleaned up the use of rhoNil and rhoConst.
2508      - rhoNil should only appear in the LINEAR equation of state, everywhere
2509        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2510        and the dynamical equations are all divided by rhoConst
2511    o introduced new parameter rhoConstFresh, a reference density of fresh
2512      water, to remove the fresh water flux's dependence on rhoNil. The default
2513      value is 999.8 kg/m^3
2514    o cleanup up external_forcing.F and external_forcing_surf.F
2515      - can now be used by both OCEANIC and OCEANICP
2516    checkpoint46h_pre
2517    
2518     Added code to convert surface volume flux (fresh water) into
2519     a mass flux when using P coordinates in the ocean (OCEANICP).
2520     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2521    
2522    checkpoint46g_post
2523    o Include a new diagnostic variable phiHydLow for the ocean model
2524      - in z-coordinates, it is the bottom pressure anomaly
2525      - in p-coordinates, it is the sea surface elevation
2526      - in both cases, these variable have global drift, reflecting the mass
2527        drift in z-coordinates and the volume drift in p-coordinates
2528      - included time averaging for phiHydLow, be aware of the drift!
2529    o depth-dependent computation of Bo_surf for pressure coordinates
2530      in the ocean (buoyancyRelation='OCEANICP')
2531      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2532        Theta, Salinity, and Pressure in the parameter list. This routine is
2533        presently contained in find_rho.F. This routine does not give the
2534        correct density for 'POLY3', which would be a z-dependent reference
2535        density.
2536    o cleaned up find_rho
2537      - removed obsolete 'eqn' from the parameter list.
2538    o added two new verification experiments: gop and goz
2539      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2540    checkpoint46g_pre
2541    
2542    checkpoint46f_post
2543    o Enable tangent linear (forward mode) gradient checks:
2544      - extended active file handling to g_... files
2545      - added TANGENT_SIMULATION to theSimulationMode
2546      - extended grdchk package accordingly
2547    o added tangent linear setup in verification/carbon/code_ftl
2548    o added adjoint setup in verification/front_relax/code_ad
2549    
2550    checkpoint46e_post
2551    o Added new equation of state -> MDJWF
2552      - EOS of McDougall et al., 2002, JAOT, submitted
2553      - caveat: the equation of state is only valid for a smaller (more
2554        realistic?) range of values than JMD95P/Z and UNESCO
2555      - added masks to the calculation of pressure in store_pressure
2556      - added more check values for density in check_eos (ini_eos.F), some of
2557        the old check values are out of the range of the MDJWF-eos, so don't
2558        expect perfect matches for those
2559    checkpoint46e_pre
2560    
2561    checkpoint46d_post
2562    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2563      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2564      case of pressure coordinates. eosType='JMD95Z' in
2565      combination with buoyancyRelation='OCEANICP' now causes an error.
2566    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2567      in find_alpha/beta.
2568    checkpoint46d_pre
2569    
2570    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2571      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2572    
2573    checkpoint46c_post
2574    o Changes necessary for ocean in p-coordinates
2575     -  Added new buoyancy relation = 'OCEANICP'
2576     -  Added new parameters = gravitySign (this used to be contained inside
2577        the factor dRdZ which I added when we first switched to R coordinates).
2578     X GM/Redi is not compatible (yet)
2579     X bottom drag and no-slip need to be debugged.
2580    checkpoint46c_pre
2581    
2582    checkpoint46b_post
2583    o Added new equation of state -> JMD95Z and JMD95P
2584      - EOS of Jackett and McDougall, 1995, JAOT
2585      - moved all EOS parameters into EOS.h
2586      - new routines ini_eos.F, store_pressure.F
2587    o Added UNESCO EOS, but not recommended because it requires
2588      in-situ temperature (see JMD95)
2589    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2590      unesco.f to be used with POLY3
2591    checkpoint46b_pre
2592    
2593    checkpoint46a_post
2594    o Added (atmospheric) pressure loading
2595      - new field in FFIELDS.h, etc...
2596      - new cpp flag ATMOSPHERIC_LOADING
2597    o Changed hFacC to _hFacC in calc_phi_hyd.F
2598    o Added SHORTWAVE_HEATING to some files for consistency
2599    checkpoint46a_pre
2600    
2601    checkpoint46
2602    further merges from release1_p5
2603    o new ctrl package
2604      - adopted from ECCO environment to enable optimization
2605      - added Eliassen Palm fluxes to controls
2606    o added Eliassen Palm flux controls to gradient check package
2607    o cost package
2608      - Compatible with new ctrl package
2609      - added Eliassen Palm cost hooks
2610      - modif's of existing cost functions
2611    o Adjoint-related bug fixes in kpp:
2612      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2613      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2614    o autodiff package
2615      - flow directives:
2616        + new for S/R do_the_model_io
2617        + enhanced for S/R checkpoint
2618        + new gmredi.flow
2619      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2620        disable adcommon.h/g_common.h by default.
2621      - fixed problem for adjoint of global_max
2622    o modified verification/carbon/
2623    o New setup for adjoint of global_ocean
2624    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2625    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2626    o incorporated hooks for sponge layer code (external_forcing.F)
2627    
2628    checkpoint45d_post
2629    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2630    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2631      (affects plume_on_slope "cg2d" output)
2632    o add new parameter deltaTfreesurf for free-surface time stepping
2633    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2634    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2635    o change phiMin in exp1 (to agree with documentation)
2636    o add new flags:
2637     - T,S forcing inside/outside Adams-Bashforth
2638     - turn off temp,salt advection and/or forcing
2639     - for each tracer, define internal flag for multiDimAdvection & A-B
2640    o monitor: change definition of KE to check conservation of Energy
2641    
2642    checkpoint45c_post
2643    o Removed f90 comments ("!")
2644    o Modified initialisations to enable exf package for MITgcm
2645      (without invoking ECCO_PACKAGE).
2646    o modifications to gradient check package (Martin Losch)
2647      - enable centered differences
2648      - modified format of standard output
2649    
2650    checkpoint45b_post
2651    o cleaned exchange calls in cg2d
2652    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2653    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2654      to configure barotropic setup (Martin Losch)
2655    o moved some initialisations within bi,bj loop in dynamics
2656      (TAF flow dependency)
2657    o in initialise_varia, moved call packages_init_variables
2658      before convective_adjustment_init
2659      (corresponding adjustment of TAF tape initialisation).
2660    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2661    
2662    checkpoint45a_post
2663    o compute Rho over the whole domain (extend iMin,jMin indices)
2664    o specific exchange for X-slice domain (case Ny=1)
2665    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2666    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2667    
2668    checkpoint44h_post = checkpoint45
2669    o Fix to restore differentiability:
2670      place at which packages_init_variables is called in
2671      initialise_varia is crucial for reverse control flow.
2672    o modifications in GMRedi to enable stable adjoint
2673      (corresponding modif's in thermodynamics, dynamics)
2674    o added missing hook for sponge layer code in external_forcing
2675    o modified test cost functions
2676    o storing in gad_advection (plus removal of write(0,*)!
2677    o missing headers TR1.h added in convective_adjustment routines
2678    o errorMessageUnit set non-equal zero in eeboot
2679      (conflict on some platforms, e.g. IBM SP3)
2680    o modified carbon verif.
2681    
2682    checkpoint44h_pre
2683    o vertical grid option: allow to put the Interface at the middle between
2684      2 cell-centers ; replace delZ in pkg/kpp by drF.
2685    o GM Advective form: Tracers are advected using the residual transport (=
2686      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2687    
2688    checkpoint44g_post
2689    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2690      results) ; ifdef missing in thermodynamics.F
2691    
2692    checkpoint44f_pre,checkpoint44f_post
2693    o added PTRACERS package
2694      This allows an arbitrary number of passive tracers to be integrated
2695      forward simultaneously with the dynamicaly model.
2696      + Implemented so far:
2697        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2698        - I/O and checkpointing
2699        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2700      + Not implemented so far:
2701        - KPP
2702        - OBCS
2703      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2704        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2705        line in data.pkg.
2706      + This package is disabled by default since it increases storage.
2707    
2708    
2709    o testscript: added -cleanup option
2710    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2711                 b) enable to filter 2D fields.
2712    
2713    checkpoint44e_pre,post
2714    o re-wrote convective adjustment to use pre-calculated weights
2715      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2716      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2717      Original calls to convect() still in place.
2718    
2719    chkpt44d_pre,post
2720    o added missing EXCLUDE_MONITOR flags
2721    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2722      (incompatible typ in MIN/MAX expressions caused problems
2723      on IBM SP3)
2724    o in genmake added variable MAKEDEPEND
2725      plus resetting for case SunOS
2726    o added timer_stats.c routine for IBM SP3
2727    o removed variables in dynamics
2728    !!! I forgot to create tag chkpt44d_pre !!!
2729    !!! But chkpt44d_pre = chkpt44c_post    !!!
2730    
2731  o real fresh water flux implemented with non-linear free-surface.  o real fresh water flux implemented with non-linear free-surface.
2732    
2733  chkpt44c_pre,post  chkpt44c_pre,post

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