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revision 1.9 by adcroft, Thu Jul 2 14:20:04 1998 UTC revision 1.771 by mlosch, Thu Feb 15 14:57:36 2007 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 move call to cal_readparms up to make calendar parameters/variable available
8      to all packages
9    
10    checkpoint58v_post
11    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
12      useDynP_inEos_Zc tested.
13    o pkg/exf: changes to properly interpolate/mask/scale initial fields
14    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
15      and portions thereof.  See read_cs.txt for description and examples.
16    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
17      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
18      following the great-circle arc between those 2 points.
19    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
20      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
21    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
22     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
23     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
24     - still needs work (not working with some options ; efficiency to improve)
25       and serious testing.
26     - use this scheme for temperature & salinity in 2 advection test exp.:
27       advect_xy & advect_xz, respectively.
28    
29    checkpoint58u_post
30    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
31    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
32    o testreport: add option "-skipdir" to skip some test.
33    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
34      momentum calculation.
35    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
36    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
37      remove checkpoint.F and the_correction_step.F (no longer used);
38      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
39    o add option (linFSConserveTr) to correct for tracer source/sink due to
40      Linear Free surface
41    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
42    o pkg/thsice: fix reading mnc-pickups
43    
44    checkpoint58t_post
45    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
46    o pkg/mdsio:
47     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
48       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
49       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
50     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
51     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
52       either MDS_READ_FIELD or MDS_WRITE_FIELD )
53     - new S/R (to replace MDSWRITEMETA), which allows to write more
54       informations (variable names, time ...) to meta files.
55     - modify rdmds.m to give back the meta file content.
56    o pkg/diagnostics: change vertical interpolation to be safer, and more
57       flexible (define p-levels to interpolate to in data.diagnostics);
58      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
59       diagnostic pointer.
60    o pkg/seaice: more cleaning up of seaice_growth, added many comments
61    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
62    o fix multi-category seaice:
63     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
64       SEAICE_MULTICATEGORY
65     - fix short wave heat flux
66    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
67       and allow to use EVP solver. Change forward lab_sea: test both EVP
68       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
69    o Initial check-in of lab_sea adjoint
70      (very similar to natl_box_adjoint/code_seaice)
71      * used C-grid and EVP solver
72      * used KPP, GM/Redi
73      * uses inAdExact=.TRUE.
74      * gradient checks fail for both ADM and TLM
75        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
76        f.d. gradients actually seem more problematic than ADM, TLM gradients;
77        issue is related to forward mismatch between g77 an ifort
78    o pkg/seaice: overhaul of thermodynamics
79     - growth.F and groatb.F are replaced by new routine seaice_growth.F
80     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
81     - move a few global fields out of SEAICE.h into seaice_growth.F and
82       make them 2D (FICE/QNETO/ ...)
83     - remove FO (it is the same as QNETO)
84     - introduce a few local fields to avoid modifying external fields such
85       as atemp, etc.
86    
87    checkpoint58s_post
88    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
89      changed exf_set_gen.F so that
90        genperiod=0 means input file is one time-constant field and
91        genperiod=-12 means input file contains 12 monthly means
92    o CG2D: use pre-computed solver main-diagonal (stored in common block);
93      this affects truncation error ; generate new output file for exp. which
94      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
95        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
96        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
97        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
98        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
99        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
100    o start implementation of deep-atmosphere and anelastic formulation
101    o verification: remove 2nd copy of input files and use script "prepare_run"
102      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
103    o mom_common/vecinv/fluxform: fix a few initialisation isssues
104    o profiles: fix for multithreaded case
105    
106    o diagnostics: rename few diags:
107      s/'PRESSURE'/'RCENTER '/g
108      s/'TICE    '/'oceFreez'/g
109      s/'TAUX    '/'oceTAUX '/g
110      s/'TAUY    '/'oceTAUY '/g
111      s/'SWFLUX  '/'oceQsw  '/g
112      s/DIFx/DFxE/g
113      s/DIFy/DFyE/g
114      and add few ocean-forcing diagnostics:
115      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
116    o modifications to pkg/seaice/growth.F and budget.F, which change results of
117      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
118      as actual snow thickness.  It now refers everywhere to effective snow
119      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
120    
121    checkpoint58r_post
122    o modifications to pkg/seaice/growth.F, which change results of
123      lab_sea experiment: fixes pertain to melting snow over open water, to
124      masking EVAP under sea ice, and to using the correct AREA variable for
125      computations of EVAP, PRECIP, HSNOW, and GHEFF
126    o add ability to read bathy, salt, and theta using MNC (off by def)
127    o add flooding algorithm and advection of HSNOW for pkg/seaice;
128      both are turned off by default and do no change any results
129    o seaice advection with pkg/thsice: a step toward the use of non-linear
130      advection scheme, but #ifdef or commented out for now (requires more EXCH).
131    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
132      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
133      in natl_box (affects results @ truncation level: update output.txt)
134    o multi-threading and IO:
135      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
136      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
137        (needed to work with SingleCpuIO): tested in all verif. exp.
138    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
139      affects the results (but none of the verification test uses this scheme).
140    o Adding some pkg/diagnostics capability to pkg/seaice
141      (will certainly be subject to changes)
142    o ctrl: adding new control variables:
143      lwflux, lwdown, evap, snowprecip, apressure, runoff
144    
145    checkpoint58q_post
146    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
147      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
148      high_res_cube configuration by 4% on Columbia.
149    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
150      add (in global_with_exf/code) a version of EXF_INTERP_READ without
151      dynamical allocation (seems to work in multi-threaded).
152    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
153      single CPU io) so that TAF does not have to see EESUPPORT.h
154    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
155    
156    checkpoint58p_post
157    o obcs: stop if obcs is used with useCDscheme = .true.
158    o shelfice:
159     - fix a sign error so that no slip at shelfice interface works
160     - remove stop for combination non-hydrostatic code and shelfice. That does
161       not mean, that the results are correct, but at least they are numerically
162       stable
163    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
164    o added adjoint exch routined for all exch*3d* routines
165      and updated flow directives
166    
167    checkpoint58o_post
168    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
169      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
170    o change controling S/R for writing pickup file (new S/R do_write_pickup)
171      and clean-up reading/writing of pickup files.
172    o fix local version of read/write pickup (NH part) in rotating_tank/code
173    o simplify EXCH interface:
174     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
175     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
176    o added the regrid package
177    o shelfice:
178     - add a simple boundary layer scheme to reduce noise
179     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
180    
181    checkpoint58n_post
182    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
183       local variable (not in common block).
184    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
185      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
186      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
187        to work with SingleCpuIO.
188    o add "_d 0" to real constant of pkg/cfc subroutines ;
189       update exp. cfc_exemple & tutorial_cfc_offline output files.
190    o multi-threading and IO:
191      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
192        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
193      - barrier before and after reading.
194      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
195      - avoid using MDS_WRITELOCAL for LAND pkg output.
196      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
197        common-block variables ; Allows multi-threading with master-thread IO.
198    o change default MAX_NO_THREADS from 32 to 4 ;
199      and stop cleanly when MAX_NO_THREADS is too small.
200    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
201    
202    checkpoint58m_post
203    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
204       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
205    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
206       keep global_ocean.90x40x15 (for AD testing) with former secondary test
207       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
208    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
209        add MITgcm_tutorials (= code + all the tutorials)
210    o ecco, option to compute cost for total ssh (mean+anom)
211    o consistent with addition of ptracer and ssh in pkg/profiles
212    o profiles: adding ptracer and ssh
213    o testreport: change multi-test output-file name
214      (from output.txt.{name} to output.{name}.txt)
215    o profiles: now ok for mutli-tiles case
216    o seaice: add 4 parameters for different advection schemes for area,
217      (effective) seaice thickness, enthalphy, and snow height. Their default
218      is the standard parameter SEAICEadvScheme
219    o calc_gw:
220     - add cosFacU in zonal viscous flux (harmonic.visc.).
221     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
222       of tutorial_plume_on_slope.
223    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
224    o calc_gw: true flux-form, account for horizontal grid spacing.
225      update rotating_tank results, but not plume_on_slope (affected at
226      truncation level, 11 digits).
227    
228    checkpoint58l_post
229    o calc_gw:
230     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
231     - remove side-drag for now (need to fix it); update plume_on_slope results.
232     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
233    o commit code to make SST/SSS weights spatially variable
234      (based on either variable in-situ or variable initial T/S weights)
235    o pkg/ecco:
236      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
237        now based on horizontally varying weights wthetaLev, wsaltLev
238      * cost_averagesflags now returns year indices in addition to day, month
239      * sflux balance is performed on annual basis
240        (sflxumm, sfluxmm2, bal_sfluxmm)
241      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
242        including separate counting and multipliers
243    o pkg/rbcs
244      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
245    
246    checkpoint58k_post
247    o testreport:
248     - always build in dir. "build" (if not there, mkdir build instead of building
249       & running in input)
250     - run in dir run (if it exists), in build otherwise.
251     - call prepare_run (if input/prepare_run exists)
252     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
253    o pkg/exf modifications to interpolation and rotation routines for more
254       reasonable treatment of North Pole singularity: for tracers North Pole
255       value is set to northernmost zonal-mean value, for zonal velocity it is
256       set to zero, and for meridional velocity it is set to northernmost value.
257    o pkg/exf/exf_check_range.F
258     - add tile index to diagnostics and move stop statement to the very
259       end of the routine.
260    o pkg/diagnostics: (diagnostics_main_init.F)
261      define title of isomorphic variables according to the current config.
262    o pkg/thsice with pkg/seaice dynamics:
263    - fix domain of computation (interior only, required for exf) and do exchanges
264    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
265    o towards a standard way of dealing with multi-threading in MONITOR
266      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
267    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
268       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
269    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
270    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
271    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
272       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
273    o tracer advection:
274     - clean-up and simplify calc_common_factors.F
275     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
276       advection subroutine (but still not used within DST advection S/R)
277    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
278    
279    checkpoint58j_post
280    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
281      from file (collects calls previously in FORWARD_STEP)
282    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
283    o adjoint store dir. adjusted accordingly
284    o genmake2
285      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
286    
287    checkpoint58i_post
288    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
289      on wind stress (SEAICEstressFactor defaults to 1.)
290    o Total number of Timers is finite (<=40): comment out 2 non-essential one
291      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
292    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
293      on CS-grid: no longer loosing mass.
294    o exf & curvilinear-grid: no longer modify longitude xC & xG.
295    o pkg/ggl90: fix sloppy output and fix a bug
296    o pkg/seaice: added SEAICEuseEVPpickup parameter
297      - Set to false in order to start EVP solver with
298        non-EVP pickup files when using SEAICEuseEVP
299      - fix sign error in diffusion in seaice_calc_rhs
300    
301    checkpoint58h_post
302    * Modifications for bottom topography control
303      o replace hFacC by _hFacC at various places
304      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
305      o add non-self-adjoint cg2d_nsa
306      o update autodiff support routines
307      o re-initialise hfac after ctrl_depth_ini
308      o works for 5x5 box, doesnt work for global_ocean.90x40x15
309    * Adding verification for 5x5 box (4-layer) bottom topography control
310    
311    checkpoint58g_post
312    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
313       used for mean seasonal cycle, mean diurnal cycle); add an example
314       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
315    o pkg/ggl90:
316      - add parameter (minimum surface kinetic energy)
317      - fix bug (avoiding division by zero)
318    o couple pkg/thsice to pkg/seaice:
319      - modify advection in seaice to accomodate new scalar fields to be advected
320      - only muliDimAdection scheme work with seaice/thsice
321      - mapping of thsice-variables to seaice-variables, back and forth
322      - does not break the verification experiments, but does not give the
323        desired results either
324    o pkg/seaice
325      - make (default) second order advection a bit less confusing?
326    
327    checkpoint58f_post
328    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
329      to pkg/seaice):
330      - new routines thsice_map_exf and thsice_get_exf provide the interface
331      - add an additional formal parameter to thsice_solve4temp
332    o pkg/exf:
333      - add new fields wspeed, snowprecip (to be able to couple to thsice)
334      - correct Stefan-Boltzmann constant
335      - new parameter for longwave surface emittance
336      - separate some stuff from exf_bulkformulae into new routines  
337        exf_radiation, exf_wind
338      - add new parameters and constants: longwave emissivity for ocean, ice
339        and snow, evaporation parameters over ice
340      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
341        either wind from stress or stress from wind
342    o pkg/thSIce:
343    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
344    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
345       and THSICE_CALC_THICKN
346    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
347    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
348      to make debugging easier.
349    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
350    o pkg/bulk_force:
351      - clean-up comments and parameters ;
352      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
353    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
354      generate new output for test-experiment: aim.5l_cs.thSI
355    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
356      testreport accordingly
357    
358    checkpoint58e_post
359    o SEAICE_CGRID adjoint done
360    o R_STAR adjoint implemented.
361      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
362      * need to sort out init. of h0facc, etc.
363    o Make pkg/profile fully independent of ecco,cost, etc. stuff
364      to be able to use it in pure forward.
365    
366    checkpoint58d_post
367    o upgrade simple test-experiment to tutorial example:
368     step.1: duplicate the experiment and (step.2) will remove the old copy.
369      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
370      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
371      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
372      tutorial_global_oce_biogeo    <- copy of dic_example
373      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
374      tutorial_plume_on_slope       <- copy of plume_on_slope
375      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
376      tutorial_global_oce_optim     <- empty for now (David ?)
377      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
378     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
379    o correct a sign problem in cost_scat.F
380    o obcs and ptracers: fix boundary conditions for advections schemes
381      with larger stencil
382    o thsice adjoint: start
383    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
384      completeness
385    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
386      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
387    o ptracers adjoint:
388      * avoid extensive recomputatations
389      * fix missing re-init. of gptr (missed by TAF)
390    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
391      me to turn off the excessive output to STDOUT that this package produces
392    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
393      and add those terms in Vector-Invariant formulation.
394    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
395      if the control period (xx_hfluxperiod etc) is 0
396    o in profiles pkg, clean routines and fix details
397    o in ecco pkg, reading ssh data:
398      fix problem in case the model does not start at iter0=0
399    o fix mnc-pickup/restart for ptracers
400    o new package prifiles:
401      code to compute profile-based cost by Gael Forget
402      (modifs in ecco, ctrl, autodiff)
403    o Benign bug fix in initialization (spotted by M. Mazloff) of
404      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
405    
406    checkpoint58c_post
407    o adjoint: finish NLFS adjoint and provide reference output in
408      verification/global_ocean.90x40x15/results_ad_nlfs
409    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
410      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
411      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
412      with SEAICE_CGRID defined.
413    o move calendarDumps from "data" to "data.cal" and clean-up the code
414      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
415    o add useEXF & useCAL flags (for now, set in hard-coded way)
416    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
417      (were missing in NH mode, and wrong in quasihydrostatic mode).
418      waiting for Chris updated version of calc_gw to add those CALLs.
419    o fix bug in quasihydrostatic S/R ;
420      add a test for this option: global_ocean.90x40x15.qshyd
421    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
422      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
423    o add on/off flag useOffLine for package OFFLINE
424    o seaice:
425      - modify advection so that it works also on the C-grid
426      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
427        problem in multi-tile runs with C-grid
428      - add flags for clipping ice velocities and/or masking solver forcing
429      - fix drag (ocean on ice) formulation and a bug that caused noise in the
430        C-grid solver
431      - added a few comments to seaice_diffusion.F
432      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
433        are now exclusive)
434      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
435        required re-ordering the code a little:
436       + make DAIRN global variable (defined in SEAICE)
437       + move computation of the viscosities eta and zeta into a new separate
438         routine (because I need to recompute them in seaice_ocean_stress.F)
439    
440    checkpoint58b_post
441    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
442      update output.txt of exp. aim.5l_cs.thSI
443    o various mnc cleanups and improvements:
444      + shrink lookup tables by factor of ~4
445      + better error reporting when running out of lookup space
446      + able to handle longer path/file names (up to 500 chars)
447    o adjoint:
448      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
449      - TBD: "hidden" mom_vecinv recomp. in dynamics
450    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
451     (allow to differentiate between forcing components using new integer flags:
452      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
453     and add new flag to put Dissipation tendency out of Adams-Bashforth.
454    o ecco
455      - enable trend removal from SSH anomaly obs.
456    o adjoint
457      - a fix for PmEpR when #undef EXACT_CONSERV
458      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
459      - try to fix "hidden" recomp. in forward_step for NLFS
460        (NLFS seems broken sometimes after I checked it in)
461    o seaice:
462     - add c-grid version of the dynamic solver:
463       + three new routines that are the c-grid substitute lsr, dynsolver
464         and ostres
465       + put a few fields that were local to dynsolver into global common
466         blocks, so that I can move the computation of stresses etc into
467         seaice_lsr (saves coding but may break the adjoint).
468     - replace more hardwired parameters by runtime parameters
469     - add ice masks that mask the rhs of the implicit solvers where there
470       is no ice (commented out in seaice_dynsolver, because i am not sure
471       if this works properly), eventually this should replace the clipping
472       of ice velocities in seaice_dynsolver to +/-40cm/s.
473    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
474      include it only where its needed
475    o move balancing of fluxes before the call of external_forcing_surf
476    o seaice:
477      - correct units of turning angles (now they are really in degrees)
478      - move computation of GWATX/Y out of main routine into dynsolver
479      - initialize GWATX/Y in seaice_init
480    o Apply mask on Fresh-Water flux (needed for SSH forcing).
481      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
482    o seaice: add runtime flags for turning angles (default to zero)
483    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
484      and trend from exf forcing and ctrl control adjustments
485    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
486      (since checkpoint57x_post)
487    o change the default rotation period to 86164.s = the Earth rotation
488    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
489      and based on a reference stratification. Tested within hs94.cs-32x32x5.
490    o seaice advection: add code for choosing between the default (2nd order
491      central differences) and multiDim advection schemes provided by
492      pkg/generic_advdiff
493    o seaice:
494      - removed all references to SEAICE_GRID.h fields from
495        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
496        (cubed-sphere configuration will change a little)
497      - grid computations in seaice_init are obsolete now.
498      - cleaned up code a little so that is easier to read (hopefully).
499      - added new (better?) discretizations of default advection and diffusion
500        (turn on with SEAICEuseFluxForm)
501      - replace 1 in 3d global fields by kSurface in growth.F
502      
503    checkpoint58a_post
504    o seaice:
505      - bug fix in advect.F
506    o shelfice:
507      - separate shelfice load anomaly from pload (breaks with time
508        dependent forcing), => introduce constant field shelficeLoadAnomaly.
509        Its default is 0., but it may be computed more cleverly from (unknown)
510        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
511        done offline. A good approximation of the pressure load anomaly is
512        necessary to avoid large initial adjustment processes underneath
513        deep-reaching shelfice.
514      - small fix in ISOMIP shelfice_thermodynamics
515      - add more sophisticated thermodynamics of Hellmer (1989), this is
516        now the default
517      - give a few constants more intuitive names
518    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
519      if bulk formulae are used in long integration (especially EmPmR). Turn
520      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
521      if balancePrintMean, the imbalance that is substracted is printed to
522      STDOUT.
523    o fix bug (typo) in obcs_apply_eta.F
524    o add a new package shelfice which enables us to model the circulation
525      underneath shelf-ice with draughts of hundreds of meters.
526     - works
527     - to do: + include improved thermodynamics
528              + check whether kSurfC (from model/inc/SURFACE.h) can be used
529                instead of new field kTopC
530              + can we use topoFile, Ro_surf and existing code in ini_depth.F
531                instead of new field R_shelfIce and new code in ini_depth.F
532                and ini_mask_etc.F?
533              + adjust vertical mixing schemes?
534    o seaice pkg:
535     - add a cpp-flag to include a simple formula for a salinity dependent
536       freezing point of sea water at the surface
537     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
538       meridional stresses are now different (and hopefully correct)
539    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
540       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
541       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
542    o pkg/diagnostics: add options and parameters for regional-statistics
543       diagnostics ; define regions by reading a region-mask from a file
544       (might add other options later)
545    o pkg/bulk_force:
546     - add option and parameters to use AIM surface-flux formulae.
547     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
548       others forcing fields (defined in PARM05, parameter file "data") are loaded
549       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
550     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
551     - use the right EXCH call for uwind,vwind (to work on CS-grid).
552     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
553       and parameters (note: calcWindStress replaces .NOT.readwindstress).
554     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
555    
556    checkpoint58
557    o add "--embed-source" option to genmake2 which, when the supporting
558      tools can be compiled (as determined by genmake2) will turn on the
559      embed_files package which then embeds the entire MITgcm source code
560      (*.[fFhc] + Makefile) used for the build within the executable
561      - requested by CNH but off by default
562      - adds a paltry <9MB to the mitgcmuv executable in most cases
563      - only writes the output when useEMBEDSRC in eedata is true
564    o clean up 3-dim. relaxation codes:
565      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
566      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
567      * Thanks to Tom Haine for testing!
568    
569    checkpoint57z_post
570    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
571      affects output (@ truncation level) of exp. plume_on_slope ; updated.
572    o fix the pickup behavior for obcs in combination with ptracers
573    o fix a bug in ptracers_external_fields_load
574    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
575      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
576    o transfered surface NH pressure to eta field (if exactConserv).
577    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
578         and update lab_sea output.txt file.
579    o completing 3-dim. relaxation code: additional term
580         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
581      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
582      * At compile time, in "EXF_OPTIONS.h" set
583          #define  ALLOW_CLIMTEMP_RELAXATION
584          #define  ALLOW_CLIMSALT_RELAXATION
585      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
586          tauThetaClimRelax3Dim = 15552000.0,
587          tauSaltClimRelax3Dim  = 15552000.0,
588      * 3 cases:
589          1) Use a constant-in-time 3-dim. field
590          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
591          3) Real-time relax. to time-evolving prescribed field
592    o Adding Laplacian-type smoothness constraint on
593      initial and boundary (forcing) controls (ic, bc)
594      * enable at compile-time via
595        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
596      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
597      * Absolute scale somewhat unclear so far
598      * no area weighting was included since no other cost term does so far
599    
600    checkpoint57y_post
601    First step for a NLFS adjoint
602    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
603    o new init. routines for calc_r_star, calc_surf_dr
604    o still need to deal with ini_masks_etc
605    o testreport seemed happy
606    checkpoint57y_pre
607    
608    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
609    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
610    o add new offset feature to offline pkg (plus minor cleanup)
611    o cfc fixes for final year of integration
612    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
613      be in GCHEM_OPTIONS).
614    
615    checkpoint57x_post
616    o fix testreport Pb in multiple test experiment.
617    o cleanup our namelist syntax in verification:
618      - make it more F95 standards compliant (some work still needed)
619      - allows the vast majority of our tests to work with gfortran
620    o Non-Hydrostatic:
621     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
622     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
623    o Allow to apply AB on T,S rather than on AB(gT,gS):
624     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
625     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
626       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
627     - need a "clever" read_pickup to restart from the other AB formulation
628    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
629    o remove some unused variables (reduces number of compiler warnings)
630    o adjoint
631      * Disable useVariableViscosity for adjoint for time being
632        (there are a number of extensive recomputations)
633      * Initialize certain variables needed for adjoint
634    
635    checkpoint57w_post
636    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
637                 fix the singleCpuIO RS version of MDSWRITEFIELD
638       and add a WARNING if using globalFiles=T with multi-processors.
639    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
640      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
641    o tracer advection scheme:
642      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
643       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
644       was not very convenient).
645      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
646       (further tests needed for the implicit DST & Flux-Limiter schemes).
647    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
648      and sRef for convenience, handy, when you want to initialize
649      ptracers in a large domain with a constant non-zero value. Also,
650      untangle ptracers_init.F a little.
651    
652    checkpoint57v_post
653    o change dome exp. to use variable viscosity in side-drag terms.
654    o remove all the files from the cfc_offline test since they are now
655      incorporated into tutorial_cfc_offline which has been producing
656      identical results for a few days of testing
657    o add new parameter: sideDragFactor to enable half-slip-side BC
658      and change side-drag S/R to use viscosity from mom_calc_visc
659      (can switch back by setting sideDragFactor=0.); affects results at
660      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
661       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
662    o vorticity & strain are now computed without masking, to account for
663      no-slip-side BC in variable viscosity calculation ; mask is applied
664      anyway later on, before computing advection/coriolis terms.
665    o modify exp4 to test new obcs support for reading from external files
666      and for passive tracers
667    o fix behavior of ptracers_monitor when monitor output is written to a
668      netcdf-file; still not independent of monitor.F (writes in the same
669      file).
670    o change default value of tRef (put a uniform, meaningful value for ocean
671      & atmos) and initialize sRef (was missing, as Martin mentioned).
672    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
673      to be proportional to enstrophy dissipation length.  Thus,
674       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
675      This is now consistent with Smagorinsky and with the manual.
676    
677    checkpoint57u_post
678    o OBCS and PTRACERS: add open boundary support for passive tracers
679      - either use homogenous (pseudo) v.Neumann conditions or prescribe
680        OB-values from file; this is not different from the way theta and salinity
681        are treated
682      - however, Orlanski-radiation conditions are not supported, and the model
683        will stop if you use pTracers and Orlanski at the same time.
684      - beefed up the rountine obcs_external_fields_load: now only those open
685        boundary values are overwritten with values from files for which there
686        are really files, otherwise the OB-fields remain untouched. This makes
687        it possible to use different OBs at different ends of the domain (as
688        with EXF)
689    o reduce number of exch calls in shap_filt (s2).
690    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
691      truncation level) 4/5 MLAdjust test results (11&12 digits match).
692    
693    checkpoint57t_post
694    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
695    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
696      same truncation, independent of the face number: affects affects several
697      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
698    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
699      note that biharmonic viscosity + no-slip was not tested in any experiment.
700    o fix bug in non-linear free-surf side-drag ; generate new output for
701      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
702    o make mnc honor the writeBinaryPrec flag for most kinds of output
703    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
704    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
705      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
706    o add brackets in multi-terms sum to get same truncation, independent of
707      the face number (manage to get exactly same value of gU,gV at the cs-edge)
708      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
709    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
710      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
711      a maximum grid-scale Reynolds number.  Also, changes all length calculations
712      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
713      Suggested values of viscosity parameters found in mom_calc_visc.
714      Many new viscosity diagnostics available.
715    
716    checkpoint57s_post
717    o Add clearing-house for viscosity calculations, mom_calc_visc and
718      correct numerous bugs in LeithD and Smagorinsky discretizations.  
719      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
720      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
721      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
722      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
723      The Strain-Tension form is now called with useStrainTensonVisc=.true.
724      ViscAhStrain and viscAhTension are now retired.
725    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
726    o In response to JMC's bug report, genmake2 now ignores any soft-links
727      that it finds in the *current* directory when searching for files.
728      Soft-links found in any other source directories will still work as
729      they did before.
730    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
731      a C routine to unlimit the stack size
732    o mnc-ify pkg/aim snapshot vars
733    o mnc-ify pkg/land as requested by Daniel
734    o various changes to mnc including:
735      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
736      - output can now be grouped so that all files within a group
737          change the ITER portion of their names in lock-step together
738      - can now read ("global") PER-FACE (in addition to PER-TILE) files
739          and works with both EXCH1 and EXCH2 (but needs more testing)
740      - writing works for all verification test cases w/ g77 on Linux
741    
742    checkpoint57r_post
743    o make MNC variable initialization happen earlier
744    o add diagnostics for (almost) each term of the momentum Eq.
745    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
746    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
747    o remove MINIMAL_TAVE_OUTPUT option ;
748      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
749    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
750      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
751    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
752    o add time-dependent SST, SSS control
753    o cost terms in ecco/ modularized (new cost_generic.F)
754    o cost_averages routines are modularized (new cost_averagesgeneric.F)
755    o new infrastructure for seaice model vs. obs misfits in seaice/
756      * driver from the_main_loop.F is seaice_cost_driver.F
757      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
758      * gradient check in Exp. 6a of natl_box_adjoint/
759    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
760      (see README file)
761    
762    checkpoint57q_post
763    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
764    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
765      - bug was reported by Jean-Michel and Ian Fenty
766    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
767      update exp. cpl_aim+ocn output.
768    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
769      Needed for high-res. runs with large global files
770      to be able to limit tapelev size
771    o Changed some tests for adjoint:
772      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
773      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
774      * global_ocean.90x40x15/ back to default 3-level checkpointing
775    o Modifications to enable scripted COMMON to MODULE conversion
776      * verification/OpenAD/code/ has necessary scripts and description;
777      * converts, compiles and runs successfully;
778    
779    checkpoint57p_post
780    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
781    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
782      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
783    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
784    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
785      (was already the case for dissipation with mom_vecinv,
786       and also the case for grad.PhiHyd when staggered-timeStep)
787      This will allow to put dissipation out-off the AB time-stepping.
788     Unfortunately, affects truncation error. Update output of exp. that "fails"
789      (cg2d matching number) and leave the others for later: front_relax(10),
790      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
791      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
792    
793    checkpoint57o_post
794    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
795      (2) its ready to be documented during the 20050801 DocFest
796    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
797      for ideal_2D_oce and lab_sea on linux_ia32_g77
798    o set to #undef CTRL_SET_OLD_MAXCVARS_30
799      in global1x1_tot/code_seaice_adj to access indices 32, 33
800      (worth another tag)
801    
802    checkpoint57n_post
803    o adding precip control xx_precip 32
804    o adding swflux control xx_swflux 33
805    o Replacing 10 forcing penalty cost routines by 1 generic.
806    o Implementing partitioning in time-mean and variable adjustment
807      for atmos. state.
808    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
809    o in natl_box_adjoint:
810      * updated exp 1 to 10
811        (but does not have time-mean vs. variable split results yet)
812    o updated global1x1/*_seaice_adj/
813      to incorporate latest changes
814    o enable useSingleCpuIO for mdsio vector routines
815      (applies in particular to tapelev I/O)
816    o removed inefficient K-loop in all active_file*control*.F
817    
818    checkpoint57m_post
819    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
820      and advect_cs (use EXCH-2 and standard cs-32 grid files).
821    o pkg/exch2: filling of face-corner halo regions is optional
822      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
823    
824    checkpoint57l_post
825     tag before updating tutorials (pre-release-2)
826    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
827       for output and interpolation of input fields onto model grid)
828    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
829       Affects results of exp. rotating_tank ; update output.txt.
830    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
831          and taking the square quantity and/or using a fraction-weight field.
832    o fix aim_diagnostics_init.F mate numbers.
833    o add mnc output capability to diagnostics/diagstat and update
834      our cvsignore files for the ACSII output generated
835    
836    checkpoint57k_post
837    o lab_sea now uses diagnostics package and provides a suite of
838      new EXF diagnostics output.
839    
840    checkpoint57j_post
841    o exf
842      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
843        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
844        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
845      * extended diagnostics output
846        - now includes all EXF variables
847        - hs, hl moved to common block
848        - separate S/R for diagnostics, called after ctrl vector is added
849        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
850        - EXFqnet contains true Qnet (i.e. includes qsw)
851      * updated verif. lab_sea, global_with_exf
852      * Rearranging hflux (exf_mapfields -> exf_getforcing)
853        to ensure that diagnostics sees a true EXFqnet
854    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
855    o diagnostics pkg: change pointers so that 1 diagnostic can be used
856      several times with different frequencies.
857    o mnc-ify the thsice package as requested by Daniel Enderton
858      - the monitor--MNC output needs work
859      - many attributes need to be added (most are currently blank)
860    o mnc-ify theaim_v23 package as requested by Daniel Enderton
861      - many attributes need to be added (most are currently blank)
862    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
863    o add Sadourny like discretization to the 4th.O vorticity advection scheme
864    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
865      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
866         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
867    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
868     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
869    
870    checkpoint57i_post
871    o Diagnostics package was changed: diagnostic allocation is now deactivated
872      by setting an empty file name in the namelist (used to be by setting 0 frequency)
873    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
874      add 1rst Order upwind vertical Shear.
875    o add a quick fix for A/B checkpointing in OFFLINE mode
876    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
877      end-run around the C/Fortran linking horror in eesup/src/timers.F
878    o added pkg/runclock: allows user to terminate run based on wall clock
879    o added non-hydrostatic scaling parameter: nh_am2
880    o pkg/my82: futile attempt to make results compiler-independent by adding
881      some "_d 0", etc. no effect.
882    o for mnc output, fill the 'T' coordinate var with myTime and create a
883      separate 'iter' variable for iteration count
884    o pkg/diagnostics:
885      add new capability: output of Global/Regional & per-level statistics ;
886      tested against monitor output (including land & thSIce) on various exp.
887    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
888    
889    checkpoint57h_done
890      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
891      data.diagnostics, data.gchem, data.ptracers) is done.
892    
893    o pkg/diagnostics: prepare for Global/Regional statistics.
894      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
895    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
896      and rename it: DIFFERENT_MULTIPLE
897    
898    checkpoint57h_post
899    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
900    o pkg/diagnostics: change output frequency, now in seconds (instead
901      of Nb of iterations). This requires to change data.diagnostics.
902    checkpoint57h_pre
903    
904    o in mnc, let the user create the output dir if both mnc_outdir_date
905      and mnc_outdir_num are false
906    o add fflags() to pkg/diagnostics which allows one to specify, on a
907      per-file basis, the file precision [default behavior is unchanged]
908    o added diagnostics to pkg/kpp, including computation of mixed layer
909      depth based on a temperature/density criterion
910    o updated verification/natl_box to test the new pkg/kpp diagnostics
911    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
912    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
913    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
914      not mnc -- this mistake was found by JMC and is now corrected
915    
916    checkpoint57g_post
917    o add Adams-Bashforth 3rd Order time stepping:
918      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
919      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
920    checkpoint57g_pre
921    
922    o make lambda[Theta,Salt]ClimRelax spatially varying
923      (default remains spatially uniform constant based on tau)
924    o added new control variables
925      * init. uVel, vVel, etanN
926      * lambda[Theta,Salt]ClimRelax
927    o separate masks used for ctrl_pack/unpack 'from write_grid' output
928      (suggested by G. Forget)
929    
930    checkpoint57f_post
931    o add parameter "baseTime" = model base time = time at iteration zero
932      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
933      account for baseTime shift
934    o move Coriolis arrays from PARAMS.h to GRID.h
935    checkpoint57f_pre
936    
937    o mnc-ifying the seaice package
938    o introduced an alternative length scale calculation for use in the limiting
939      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
940    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
941    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
942      as well as grad(vort3).  Made it compatible with both approximate form
943      for the cubed sphere and full form of these gradients.  Added flag
944      useFullLeith to select between approximate and full form.  
945    o add "d0" in getcon.F to reduce differences between compilers/platforms
946      update output.txt of exp. fizhi-gridalt-hs
947    o change port_rand funtion to allow to set the seed.
948    o fix obscure MNC bug involving conversion between reals and integers
949      - it caused no problems with certain (eg. gcc, ifc) compilers but the
950        new version is now more standards-compliant
951    o adjoint-related modifications
952      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
953      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
954      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
955    
956    checkpoint57e_post
957    o Adding eddy stress controls a la Ferreira et al.
958    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
959    
960    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
961      update output.txt of exp. fizhi-gridalt-hs
962    o add more "Z" dimensions and associated coordinate vars to MNC
963    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
964    o parameter calendarDumps: when set, approximate months (30-31 days) and years
965      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
966      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
967      months and years.  Requires pkg/cal.
968    o diagnostics: add pickup functionality
969      - off by default for backwards compatibility
970      - current version only uses MDSIO -- MNC will be added
971    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
972    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
973    
974    checkpoint57d_post
975    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
976    o modify verification/ideal_2D_oce so that it tests the creation of mnc
977      output from the diagnostics package
978    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
979    o make genmake2 more portable by using ".$FS" instead of ".f" for more
980      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
981    o add coordinate variables to the MNC output from the diagnostics package
982    o change MNC-flags default value: true when useMNC=TRUE
983    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
984      the ability (off by default) to read the grid information using MNC
985    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
986    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
987    o do snap-shot diagnostics at the middle of the time-interval (instead of
988      at the end).
989    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
990      new test for AIM with thSIce + slab-ocean
991    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
992    o move state variable diagnostics to the beginning of the time step ;
993      (note: still needs some work specially for snap-shot diagnostics)
994      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
995    
996    checkpoint57c_post
997    o Change testing option (-ieee) to get closer agreement between g77 & ifort
998    o generate new output.txt files on faulks with g77 & the new -ieee option
999    checkpoint57c_pre
1000    
1001    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1002      update output.txt of exp. global_ocean.90x40x15
1003    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1004      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1005    o add saltFlux(+File) forcing capability with periodicExternalForcing
1006    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1007    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1008    o improvements for the MNC output from DIAGNOSTICS:
1009      - correct handling of the unlimitied dimension
1010      - all dims now have associated coordinate variables
1011      - variables located at U, V, and Corner ("Z") points are now written
1012        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1013        *all* data points are output
1014    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1015    o added pkg/seaice/seaice_monitor.F
1016    o mdsio_readfield.F can now read files visible only to master MPI process.
1017    o pkg/seaice: some test code for ice-modified ocean stress
1018    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1019      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1020      spurious negative numbers for precipitation and humidity.  Will cause
1021      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1022    o pkg/ctrl/
1023      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1024        May be enabled via doPackDiag
1025      *  introduce z-scaling of
1026         + gradient (doZscalePack) and
1027         + control (doZscaleUnpack)
1028    o pkg/mdsio/
1029      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1030      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1031    
1032    checkpoint57b_post
1033    o simplify options in diagnostics_fill arguments (remove weird combinations)
1034    o fix MNC coordinate variables so that they now contain per-face index
1035      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1036      general, EXCH2 grids are only aligned to a "local" coordinate system
1037    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1038    o Implement instantaneous output within pkg diagnostics:
1039      setting a negative frequency in data.diagnostics produces
1040     "snap-shot" output (as opposed to time-average if freq > 0)
1041    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1042      NOTE: change ptracer diagnostics name: use 2 characters to work with
1043            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1044    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1045      becomes the coordinate variable for the 'T' dimension
1046    o add CF-style coordinate variables to MNC
1047      - just a first cut:  numbers are meaningless on the cubesphere and
1048        missing along the T axis but otherwise it works!
1049    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1050    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1051    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1052      this is based directly on what the model compute, so that the content of
1053      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1054    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1055    o clean up build options files for SunOS, in particular
1056      - remove -traditional from xmakedepend
1057      - change -xarch=v9 to -xarch=native for f77
1058      - restore use of make (not gmake)
1059      - add CC=gcc if using g77
1060    o changes per discussion of AM, JMC, & EH3 today:
1061      - move redundant "grid" variables out of "state" -- in preparation of
1062        creating proper CF-style coordinate variables and in recognition
1063        that any/all grid variables can be easily copied (eg. w/NCO) from
1064        the grid files into any of the other NetCDF files
1065      - *always* output grid variables with MDSIO (this will eventually be
1066        changed)
1067      - output MNC grid file if useMNC is true
1068    o every instance of _END_MASTER() has been found and replaced with
1069      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1070      preprocessors
1071    o re-arrange diagnostics pkg initialisation:
1072     - allow each package to extend the available diagnostics list
1073     - add some checking and fix small problems (multi-threaded, ...)
1074     - new S/R diagnostics_fill (replace fill_diagnostics):
1075       look through the short list of active diag. (instead of the long list)
1076       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1077    
1078    checkpoint57a_post
1079    o this set of changes restores TAMC compatibility
1080      tested for global_ocean.90x40x15 adjoint on trough
1081      (what a pain)
1082    
1083    checkpoint57a_pre
1084    o some modifs in tools/build_options for sunos
1085    o call ctrl_pack for ctrl at end for optimcycle=0
1086    
1087    checkpoint57
1088    o add horizontal bi-harmonic viscosity for vertical velocity
1089      - new parameter viscA4W (defaults to viscA4)
1090      - affects only non-hydrostatic code
1091      - to be done: no-slip lateral boundary conditions
1092    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1093    o implement Implicit Vertical advection for pTracers
1094    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1095      (implemented also for implicit vertical diffusion & advection)
1096    o OBCS: extend application of tracer open boundary conditions
1097      to a strip beyond the boundary of width Olx/Oly
1098    o add call monitor to TAF set of required calls (flow directives)
1099      and include in natl_box_adjoint
1100    o untangle a few ifdefs related to cost, ctrl, autodiff
1101      untangel a few ALLOW_ECCO_OPTIMIZATION
1102    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1103      (theta2, salt2 in ecco_cost_weights)
1104    
1105    checkpoint56c_post
1106    o OBCS as control variables
1107      - update ctrl_ad_diff.list, obcs_ad_diff.list
1108      - remove balance of obcs controls from default
1109      - fix index bug nobcs in ctrl_init
1110      - fix dummy fields filen in ctrl_pack
1111      - add dummy weights for obcs
1112    o lsopt: comment out fort.94 output
1113    o optim:
1114      - remove unnecessary header files
1115      - adjusted namelists
1116      - add xerbla.F to Makefile
1117    o exf:
1118      - multiple modifications of exf_check_range
1119      - unit change in exf_init_runoff from [m/year] to [m/s]
1120    o mdsio:
1121      - i/o-vector change debugLevel from debLevA to debLevB
1122    
1123    checkpoint56b_post
1124    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1125      is called from DO_THE_MODEL_IO
1126      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1127      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1128      - clean up PTRACERS_WRITE_TIMEAVE a little
1129    o add another verification experiment that tests both the cfc-pkg and
1130      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1131      reactive tendencies treated inline with regular timestepping
1132    o testreport previously did a lousy job of comparing small numbers, so
1133      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1134      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1135      testreport.
1136    o ptracers_monitor: bug fix for MPI
1137    
1138    checkpoint56a_post
1139    o GCHEM: finish reorganizating the package
1140      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1141        (introduces another 3D-array for each passive tracer, but only if
1142        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1143        gchemTendency is not needed because the timestep is done separately)
1144      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1145      - GCHEM is now---more or less cleanly---separate from PTRACERS
1146      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1147        so clear to me how that should be done in a general way.
1148    o CFC: improve formatting of output in CFC_ATMOS
1149    o PTRACERS:
1150      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1151        that ALL experiments with ptracers enable can be checked. This makes
1152        GCHEM_MONITOR obsolete.
1153      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1154        monitorFreq
1155      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1156    o add PTRACERS (PTR0[1-5]) to testreport output
1157    o exf_check_range:
1158      * default changed to .TRUE.
1159      * will check values for niter0 if debLevA, every timestep if debLevB
1160      * STOP in exf_check_range if 'out of range'
1161      * range chosen generous to allow for potential extema
1162      TBD: a version with stricter range
1163           permitted range would be runtime parameters
1164    o GMredi:
1165      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1166      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1167      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1168    o GCHEM:
1169      - move call to GCHEM_FORCING_SEP, so that it is now called before
1170        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1171      - introduced a useGCHEM runtime flag and applied it everywhere.
1172      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1173        this flag is now only visible within GCHEM-pkg routines.
1174      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1175        be replaced by a 3D array that is computed before thermodynamics; for
1176        this, the tracer ID iTracer had to be included into the parameter list
1177        of ptracers_forcing
1178      - set up forward_step to call gchem_forcing, that will replace
1179        gchem_forcing_int in ptracers_forcing
1180      - cleaning up
1181    o small cleaning of exch2: remove files that are also in eesupp/src
1182    
1183    checkpoint56
1184    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1185    o mnc: cleanup "full" files--fixes out-of-memory problem
1186    o ECCO-GODAE
1187      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1188      * fully merged and updated from SIO code
1189        windstress sign change affects
1190        - exf_inscal_[u/v]stress
1191        - sign of xx_tau[u/v] adjustments
1192        - signs in cost_scat
1193      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1194      * natl_box_adjoint updated and compressed
1195      * 2-level checkpoint switch added
1196        (tested in EXP. 1 of natl_box_adjoint)
1197      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1198    o SVD
1199      * first complete, non-hacked version for SVD calculations
1200      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1201        performed via direct access files admtlm_vector.it????
1202        (via ctrl_[un]pack)
1203      * optimcycle is used for ARPACK iteration counter
1204        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1205      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1206        and add linear transforms where necessary
1207      * controls are initial/final SST, SSS (can be extended; need to check
1208        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1209    o mdsio: filename info to both stderr, stdout
1210    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1211      from sign change
1212    
1213    checkpoint55j_post
1214    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1215      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1216    o add consistent build directories and .cvsignore files to verification
1217    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1218    o make all subroutines 30 or less characters in length for certain older
1219      compilers to work (a thorough search only turns up two routines in
1220      pkg/ptracers)
1221    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1222      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1223    
1224    checkpoint55i_post
1225    o change arrays for total vertical diffusivity (2.D if explicit,
1226      3.D if implicit) ; each ptracer uses its own background value.
1227    o added mnc/NetCDF output capability to ocn_compon_interf
1228      - added bits to verification/cpl_aim+ocn so that it can run on
1229        ITRDA and other clusters without the mpirun "-wd" option
1230    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1231      configuration
1232    o give MNC the ability to create additional files rather than
1233      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1234      - the default is just less than 2GB which is a practical limit
1235        on many systems
1236    o Compute the non-local term using either KPP vertical diffusivity (=default)
1237       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1238    
1239    checkpoint55h_post
1240    o add verification test "vermix"
1241    o remove all the *_ioinc flags and replace with the single global
1242      outputTypesInclusive flag
1243    o allow to set a vertical profile of vertical diffusivity for T & S
1244    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1245    o useMNC moved from data.mnc to data.pkg
1246    
1247    checkpoint55g_post
1248    o Renaming carbon AD experiments to comply with testreport conventions
1249    o Updating adjoint of Held-Suarez hs94.1x64x5
1250    o Fixing directives for non-ECCO forward_step, after ECCO directives
1251      have been fixed to avoid recomp. of do_oceanic_phys
1252      Works well for global_ocean.90x40x15,
1253      but recomp. issue remains for carbon
1254    o Updating adjoint output for natl_box_adjoint after
1255      pkg/ecco has been modified (see taga c55d_post)
1256    
1257    checkpoint55f_post
1258    o rename to timeave_init_fixed
1259    
1260    checkpoint55e_post
1261    o some delicate re-shuffle of store directives to avoid one
1262      extra call of do_oceanic_physics
1263      affects ecco_the_main_loop.F, do_oceanic_physics.F
1264      checkpoint_lev1_directives.h
1265    o NB: this may break global_ocean adjoint temporarily,
1266      but it is clear how to fix it. Will do later, need this now.
1267    
1268    checkpoint55d_post
1269    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1270    o ecco_cost_weights is modified to 1x1 runs
1271    o modifs to allow observations to be read in as
1272      single file or yearly files
1273    o enable to read exf forcing fields as either
1274      single file or yearly files (flag useExfYearlyFields)
1275    checkpoint55d_pre
1276    
1277    o switch between 2-level and 3-level checkpointing
1278    o add ability of MNC to write local and "partial" (eg. 2D slices where
1279      the full 3D field is never actually stored) arrays to NetCDF files
1280      with the correct (that is, the complete multi-dimensional) set of
1281      array indicies
1282      - used in mom_vecinv() to write the diagFreq output
1283      - tested (demonstrated) in verification/aim.5l_cs
1284    o further mnc-ification
1285      - add verification/lab_sea to the list with mnc setups
1286      - fix undefined mnc v-names in cd_code
1287      - add kpp to mnc output (both snapshot and timeave)
1288    o non-hydrostatic code
1289      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1290        in calc_gw.F
1291      - defaults to viscAh
1292      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1293        friction or Leith) in non-hydrostatic mode, as long as there is
1294        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1295    o pkg/cost
1296      extend simple cost functions to treat time mean quantities
1297      (T,U,V) via cost_accumulate_state from cost_tile
1298    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1299        be 2 times larger than the minimum size the advection scheme requires.
1300        now get a perfect conservation of salt in advect_cs test-exp (updated)
1301    o GGL90 (Gaspar's TKE mixed layer)
1302      - add horizontal diffusion of TKE, requires exchanges in
1303        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1304        default. In OPA there is no horizontal diffusion of TKE but the
1305        mixing coefficients are computed from a horizontal average of TKE of
1306        6 points or so. I think that diffusion has a little more physical
1307        justification.
1308      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1309        was in vain)
1310      - mask tke-variable in ggl90_init
1311    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1312    o fix biharmonic diffusion on CS-grid.
1313    o more obcs stuff
1314      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1315        for reading boundary values. This routine is called from
1316        obcs_prescribe_read
1317      - updated obcs_check
1318      - changed sponge layer relaxation parameter units for days to seconds
1319      - turned off sponge layer by default
1320      - changed argument list of OBCS_CALC to myTime+deltaTclock
1321      - fixed about 35 bugs in obcs_external_fields_load
1322    
1323    checkpoint55c_post
1324    o obcs stuff
1325      - new runtime flags useOBCSprescribe, useOBCSbalance
1326      - re-arranged obcs_calc
1327      - moved exf_getobcs to obcs_prescibe_read
1328        obcs_prescibe_read is called after ORLANSKI stuff
1329        and independent of it (executable can contain all).
1330      - updated obcs_check
1331      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1332        These may be necessary only if tangential velocities are
1333        prescribed at OB, not sure, needs testing.
1334    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1335      which simplifies the calls and passes the ifc check-bounds test
1336    
1337    checkpoint55b_post
1338    o add a 2D scalar, Z location, exchange_2 routine.
1339    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1340      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1341      affects advect_cs results (for the wrong reason): update output.txt
1342    o use a more standard discretization for biharmonic viscosity ;
1343     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1344      affects results of dome set-up: update output.txt
1345    o fix gad_advection.F (CubedSphere part), back to version 1.23
1346    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1347    
1348    checkpoint55a_post
1349    o merged code to
1350      * prescribe/read time-dependent open boundaries
1351        (works in conjunction with exf, cal)
1352      * sponge layer code for open boundaries
1353      * each boundary N/S/E/W now has its own CPP option
1354        (healthy for the adjoint)
1355    
1356    checkpoint55
1357    o up-to-date adjoint of previous breaks
1358      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1359      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1360      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1361      - carbon: * remove tr1-related adjoint verification
1362                * add ptracer as control variable
1363    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1364      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1365    
1366    checkpoint54f_post
1367    o in verification/carbin/ remove experiment related to
1368      ALLOW_PASSIVE_TRACER (array tr1 etc)
1369      code_ad/ input_ad/ results_ad
1370    
1371    o add two new packages
1372      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1373        + subject to optimization (memory)
1374      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1375        + subject to reordering (many GOTOs in the original code)
1376        + so far opps is called for every (i,j) point, and then operates in
1377          the vertical; one may want to reorder the scheme in order operate in
1378          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1379          fields)
1380    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1381      - all verification tests compile and run with linux_ia32_g77
1382      - defaults are compatible with current input files--nothing
1383        should change if you were not previously using MNC
1384      - MNC output has been added in numerous places (eg. timeave)
1385        but there are still a few writes not yet do-able with MNC
1386        (this is in progress)
1387      - flags now allow for either/or/both use of MDSIO and MNC and
1388        documentation will soon follow
1389      - numerous small formatting cleanups for ProTeX
1390    o add version info (via BUILD_INFO.h) to MNC and stdout
1391    
1392    checkpoint54e_post
1393    o add two new packages
1394      - pp81 (Packanowski and Philander, 1981), Richardson number and
1395        stratification dependent mixing
1396      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1397      - these scheme operate in a similar manner as KPP (without ghat, of
1398        course), however there is only one diffusivity that is used for both
1399        temperature and salinity (and passive tracers)ç
1400    o add offline package
1401    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1402      provided by Stephanie Dutkiewicz
1403    o genmake2: add ability to search for C compilers and cleanup test output
1404      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1405    
1406    checkpoint54d_post
1407    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1408    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1409      leading to additional shift by 5 days each year of integration
1410       (i.e. leading to considerable offset over the years)
1411    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1412    o start with no AB and no initial filtering (staggerTimeStep):
1413      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1414    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1415      (external loading & cpl import/export stay in forward_step.F)
1416    o update coupling interface to work with new staggerTimeStep
1417    o change MDSIO ptracers_pickup.
1418    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1419    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1420    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1421    
1422    checkpoint54c_post
1423    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1424      this affects (truncation error) output.txt of test-exp:
1425       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1426    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1427    o change Qnet to always be the net heat flux, (+upward).
1428      affects (truncation error) output of natl_box exp.: updated
1429    o define the max number of passive tracers in PTRACERS_SIZE.h
1430    o start to test mnc routinely in exp0
1431    o add sea-ice loading (sIceLoad) as a new forcing field.
1432    
1433    checkpoint54b_post
1434    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1435       impressive on Altix and Opteron systems)
1436    o diagnostics can now write NetCDF files through the mnc package
1437    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1438    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1439    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1440      affects (truncation error) output of lab_sea & natl_box exp.: updated
1441    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1442    
1443    checkpoint54a_post
1444    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1445    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1446    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1447    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1448      + internal_wave (shift in writing cg2d_ini_res)
1449    checkpoint54a_pre
1450    
1451    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1452      - modified verification/lab_sea and natl_box_adjoint accordingly
1453    
1454    checkpoint54
1455    checkpoint53g_post
1456    o prepare splitting of thermodynamics: store convect.counter in common block
1457    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1458      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1459    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1460    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1461    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1462    o restore adjointability
1463    
1464    checkpoint53f_post
1465    o modifications that affect AIM experiment results (update output.txt):
1466      - no advection of S at top interface Nr (pkg/generic_advdiff)
1467      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1468    o AIM pkg:
1469      - include stability function into surf.Flux derivative relative to Tsurf
1470      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1471    
1472    checkpoint53e_post
1473    o merged cylindrical coord configuration
1474    o added rotating_tank experiment
1475    checkpoint53e_pre
1476    
1477    checkpoint53d_post
1478    o faulks upgraded: re-generate output.txt that have changed:
1479       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1480    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1481    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1482    o added Sadourny discretization of Coriolis
1483      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1484      - re-enabled use of omega3 (useAbsVorticity)
1485    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1486      vector-invariant equations
1487      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1488    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1489      hopefully without new bugs
1490      - still to do: biharmonic friction for non-hydrostatic w
1491    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1492    o regenerated output for global_ocean_ebm (using -ieee)
1493    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1494      of mom_common/
1495      - simple re-arrangement of instructions within computing loop
1496    checkpoint53d_pre
1497    
1498    checkpoint53c_post
1499    o new version of coupler for AIM+thSIce and Ocean models
1500     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1501     - land: change Evaporation of snow
1502     - aim with thSIce: fix bug in snow-precip.
1503    o changes to calc_gw.F
1504     - bug fix for w^2 term near the bottom boundary
1505     - (hopefully) improve the lateral slip boundary condtions for use with
1506        partial/looped cells
1507      - because the bug fix changes two verification experiments anyway (exp5
1508        and plume on slope), change the lateral boundary condition from half slip
1509        to the value of no_slip_sides
1510    o ebm package wasnt quite up to the parallel task. Fixed that.
1511    o Adjoint of EBM package + verification
1512      * TLM OK
1513      * ADM not sufficient accuracy yet (needs further testing)
1514    
1515    checkpoint53b_post
1516    o Commiting new energy balance model to repository
1517      * package is pkg/ebm
1518      * verif. is verification/global_ocean_ebm
1519      * references are in ebm_driver.F
1520    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1521    C        Global thermohaline circulation. Part I:
1522    C        Sensitivity to atmospheric moisture transport.
1523    C        J. Climate 12(1), 71-82
1524    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1525    C        Global thermohaline circulation. Part II:
1526    C        Sensitivity with interactive transport.
1527    C        J. Climate 12(1), 83-91
1528    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1529    C        Destabilization of the thermohaline circulation
1530    C        by atmospheric eddy transports.
1531    C        J. Climate 7(12), 1870-1882
1532    o Will need long integration testing.
1533    checkpoint53b_pre
1534    
1535    o created pkg/mom_common in preparation for variable viscosity code
1536    o renamed and split ini_mnc_io
1537    o pkg/land: only liquid water can diffuse or run-off
1538    o AIM using land: soil wetness availability account for snow
1539    o added printMapIncludesZeros to EEPARMS namelist
1540    
1541    checkpoint53a_post
1542    o restore TAMC compatiility for exf_constants.h
1543      (no usage of _d in .h)
1544    o Additional storing in KPP in an attempt to fix
1545      TAMC problem with adjoint of KPP code.
1546      (no success...)
1547      Identical code works fine with TAF.
1548    o Fixed verification/natl_box_adjoint experiments.
1549      Initial conditions for Experiments 4 and 5 are now
1550      set to "SEAICE_initialHEFF=0", which is more reasonable,
1551      and hence gives results closer to that of Experiment 2.
1552      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1553    
1554    checkpoint53
1555    o stable checkpoint with up to date adjoint
1556      TLM tests only run for 1st grdchk at the moment. Its unclear if
1557      this is a code problem or a problem with resetting code for g_
1558      variables that is being autogenerated wrong.
1559      Otherwise:
1560       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1561       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1562         are both still in chaos following their security messes.
1563    
1564    checkpoint52n_post
1565    o various build (mostly genmake2) changes including:
1566      - ability to build/run more easily within Cygwin and MacOS X
1567      - more complicated Makefiles with a stronger dependence on Gnu Make
1568    o pkg/seaice modifications
1569      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1570        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1571        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1572      - changed proxy for geostrophic velocity and updated
1573        verification/lab_sea/results/* accordingly
1574      - removed ADI dynamic solver from pkg/seaice
1575      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1576        they caused a segmentation fault under certain circumstances
1577      - removed unused field WATR
1578    o bug fix in exf-package:
1579      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1580         now reflect that.
1581    o small fixes in the cal-package:
1582      - set reference date to first of January for the 'model'-calendar
1583      - failing of cal_CheckDate in cal_FullDate now actually results in a
1584        warning
1585    o small modifications in exf-package to increase flexibility:
1586      - change climtempfreeze from a constant to a runtime parameter that
1587        is specified in data.exf_clim (default = -1.9)
1588      - introduce runtime parameter windstressmax (default = 2.0) that is
1589        specified in data.exf
1590    o fix in pkg/thsice:
1591      - update Evap (Tsf changes) to be consistent with Latent heat flux
1592      - maintain snow precipitation unchanged (even if Tsf >=0).
1593     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1594    
1595    checkpoint52m_post
1596    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1597      this does not change any of the results, because myIter=0 in swfrac always
1598      lead to jwtype=2 (the default anyway), but the call makes little sense
1599      as a default
1600    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1601    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1602      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1603    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1604    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1605    o extending useSingleCpuIO option to work with new exch2 I/O format
1606      - old-style, missing-tile I/O is still accessible by defining CPP
1607        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1608    o monitor package can write to NetCDF files and/or STDOUT
1609    o fix re-definition bug in MNC_GRID_INIT_ALL()
1610    o doc/api_reference added
1611      - a framework for building an API Reference Manual using all
1612        the "protex" comments embedded in the code
1613      - see pkg/generic_advdiff, pkg/mnc for examples
1614    o MNC:
1615      - make myThid the last argument for all subroutines
1616      - new default for the grid files: NO halos
1617      - add useMNC and other run-time flags
1618      - separate per-file-group handling of the unlimited dimension
1619      - early initialization of MNC w/ flags read at the eeboot stage
1620        and lookup tables set in initialize_fixed
1621      - write all MNC output to a freshly-created directory
1622    o thermodynamics sea-ice (thsice) is now tested with testreport.
1623    o test exp. advect_cs: use the standard cs32 grid ; update output.
1624    o Added functionality to grdchk:
1625      pick global i,j,k position (or nearest wet) where to perform check.
1626    
1627    checkpoint52l_post
1628    o new land formulation:
1629      a) use ground enthalpy as prognostic variable to ensure exact
1630         energy conservation.
1631      b) account for water temperature and for latent heat of freezing
1632         in all processes (rain, run-off, ground storage)
1633      c) compute surface and ground temperature implicitly.
1634    o aim_v23 modification for new land model:
1635      a) Treat separately land / ocean / sea-ice surface fluxes
1636         to allow implicit computation of land & sea-ice surface temp.
1637      b) add snow precipitation.
1638    checkpoint52l_pre
1639    
1640    o fix problem (when 1 tile is empty) in min/max monitor.
1641    o fix bug in timeAve (u,vZetatave in common block)
1642    o no restoring terms under ice for pkg/seaice
1643    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1644    o bug fix for pkg/seaice pickups
1645    o change MNC call locations and add coordinate attributes
1646    o mask vorticity at the corner ; affects global_ocean.cs output
1647    o fix ini_curvilinear_grid ; test CS experiments with mpi
1648    o aim.5l_cs: modify sea-ice fraction input file ; update output
1649    o exf: Adding simple range check routine for exf fields after read
1650    
1651    checkpoint52k_post
1652    o removed top-level directory "diags"
1653      - we migrated these functions to pkg/timeave a long time ago
1654    o fixed bug introduced in pkg/monitor
1655    o accuracy ctrlprec = 32 insuffient for gradient checks using
1656      averaged fields (I/O via cost_averages)
1657      -> use ctrl.h in active_file*.F to control I/O precision.
1658    o paramter list of CALL ADTHE_MAIN_LOOP
1659    o added initial do_the_model_io to ecco
1660    o set all ...Freq to zero after cost_final
1661      taveFreq, dumpFreq, pChkptFreq
1662    o MAIN and ECCO differentiability restored
1663    
1664    checkpoint52j_post
1665    o fix nchklev in tamc.h for global_ocean...
1666    o Bringing flow and store directives up-to-date
1667    o Really weird thing!
1668      call do_the_model_io from the_main_loop with parameters
1669      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1670      TAF places a faulty re-call of initialise_varia
1671      after cost_final call which should not be there!
1672    checkpoint52j_pre
1673    
1674    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1675      error messages
1676    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1677    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1678      debug output
1679    o modfied mdsio_writefield.F to handle non-global files under exch2
1680    o update AIM Cubed-Sphere exp (aim.5l_cs):
1681      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1682    o update AIM Equatorial Channel exp:
1683      use standard aim_v23 pkg and change the SST fields to be more realistic.
1684    o globalFile now works with exch2
1685    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1686      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1687    o limit timeave output for hi-res integrations
1688    
1689    checkpoint52i_post
1690    o removed CPP_EEOPTIONS.h from verification/*/code
1691    o updated the tiling for global_ocean_pressure
1692    checkpoint52i_pre
1693    
1694    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1695      the old pkg/aim).
1696    
1697    checkpoint52h_pre
1698    o shortened offending lines in exch2_send_rx?.template
1699    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1700    o genmake2: add build & execute test for NetCDF code
1701    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1702      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1703    o added useSingleCPUIO flag to monitor.F and mon_out.F
1704    o added temporary hack for sea-ice dynamics on the cube:
1705      metric terms are ignored and it is assumed that
1706      there is no sea-ice on cube faces 1, 2, 4, and 5.
1707    
1708    checkpoint52f_post
1709    o added exch2 cube routines to pkg/exch2
1710    o modified hs94.cs-32x32x5 to use it
1711    o added new grid files to hs94.cs-32x32x5
1712    checkpoint52f_pre
1713    
1714    checkpoint52e_post
1715    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1716      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1717    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1718      to work with implicit vertical advection and AB ;
1719    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1720    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1721     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1722    checkpoint52e_pre
1723    
1724    o fix bug in impldiff when Nr=1 or Nr=2.
1725    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1726    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1727    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1728      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1729    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1730    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1731    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1732    
1733    checkpoint52d_post
1734    o re-tiled many expts to allow comparison in multi-processor mode
1735      - updated output accordingly
1736      - changed hs94.128x64x5 to use intial T from file rather than use the
1737        random number generator
1738    o add infrastructure in model routines for fizhi and gridalt packages
1739    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1740    o changes to permit hi-res, cubed-sphere, configuration
1741      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1742      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1743      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1744        of surface winds for the cube
1745      (A verification experiment, based on global_ocean.cs32x15, but with
1746       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1747       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1748       complete with example surface forcing files and matlab scripts to look
1749       at the output and compare it with that of global_ocean.cs32x15.)
1750    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1751       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1752       to conform to the common rule.
1753    o check-in the first version of the coupler + interfaces for multi-components
1754       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1755       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1756       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1757       - ocean and atmos. share the same horizontal grid (no interpolation).
1758       - exchanges between component and coupler is done in forward_step
1759    o new verification experiment, cpl_aim+ocn:
1760       coupled ocean - AIM atmosphere on cs32 grid.
1761    
1762    checkpoint52d_pre
1763    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1764    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1765    
1766    checkpoint52c_post
1767    o Fixing OPTIONS files for use of exf:
1768      - ALLOW_ECCO not needed
1769      - ECCO_CPPOPTIONS.h should not be included from
1770        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1771        as has been the case in the past
1772      - All cal/exf related options are currently set in
1773        single header file. Should remain so until we
1774        agree on a consistent new policy.
1775    o Removed all CPP options for cal package.
1776      cal has no more CPP options.
1777    o modified STOREs in GAD_ADVECTION
1778    o corrected key comp. for passkey
1779    
1780    checkpoint52b_post
1781    o new version: "thsice" of thermodynamic sea-ice pkg:
1782     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1783     - modify fluxes but do not change theta directly;
1784     - light cleaning of bulk_force pkg (still needed with thsice).
1785     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1786       + output_thsice.txt to test thsice & bulk_force pkgs.
1787    o put back grid & coriolis monitor output.
1788    checkpoint52b_pre
1789    
1790    o call "do_the_model_io" at the beginning (=> dump initial state)
1791    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1792    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1793      (need info on NUMBER_OF_PTRACERS)
1794    o missing PTRACERS headers in some routines
1795    o default tamc.h in pkg/autodiff supposed to crash
1796      to ensure proper customization
1797    
1798    checkpoint52a_post
1799    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1800      - moved surfaceTendencyTice from pkg/seaice to main code
1801      - subroutine FREEZE_SURFACE now limits only surface temperature
1802        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1803        => new output.txt for global_ocean.cs32x15 & global_with_exf
1804      - keep the old version of FREEZE for backward compatibility;
1805        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1806      - corresponding modifs for TAF directives
1807    o added surface flux output variables to TIMEAVE_STATVARS
1808    o time-averaged output for pkg/ptracers
1809    o fix problem with ECCO-related divided adjoint
1810      snapshot file was missing some ad-variables,
1811      but no warning issued by TAF
1812    
1813    checkpoint52a_pre
1814    o some bug fixes for #undef REAL4_IS_SLOW
1815    
1816    checkpoint52 = ecco_c52_e35
1817    o after testing adjoints of checkpoint51u_post
1818    
1819    checkpoint51u_post
1820    o this is the post-merge tag of the ecco-branch
1821      (needs another clean checkout and re-testing)
1822    o various natl_box_adjoint configs and results
1823      but no input fields
1824    o obcs adjoint not yet merged!
1825    o adding ECCO global 1x1 and 2x2 degree configs
1826    o updated/extended some store directives for seaice
1827    o pkg/ecco now containes ecco-specific part of cost function
1828    o top level routines the_main_loop, forward_step
1829      supersede those in model/src/
1830      previous input data.cost now in data.ecco
1831      (new namelist ecco_cost_nml)
1832    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1833    
1834    checkpoint51t_post
1835    o this is the pre-merge tag of the ecco-branch
1836    
1837    checkpoint51s_post
1838    o cleanup: removed various obsolete #define-s
1839    o pkg/grdchk
1840      - renamed 'ph-grd 3' to 'grad-res'
1841      - merged from ecco-branch
1842        (remaining bug fixes for obcs gradient checks)
1843      - additional high-precision output for testreport
1844        (grep for 'precision_grdchk_result')
1845    
1846    checkpoint51r_post
1847    o cleaned up or removed CPP_OPTIONS.h files
1848    o updated results for some of the tests to reflect the new
1849      optfiles (-ieee: -O0 instead of -O3)
1850    
1851    checkpoint51q_post
1852    o cd_code:
1853      - moved cd_scheme.F -> cd_code_scheme.F
1854      - separate read_checkpoint from cd_code_ini_vars.F
1855      - separated cd_code part from write_checkpoint
1856      - updated AD_SOURCE, generated .flow
1857      - added CD_CODE_VARS.h to the_main_loop
1858      - Moving cd_code specific store dir.s to pkg/cd_code
1859    o ctrl package totally restructured
1860      - pack/unpack now optional and decoupled from
1861        xx_/adxx_ I/O
1862      - ctrl_pack/unpack cleaned
1863        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1864      - confined inclusion of AD_CONFIG.h to where necessary.
1865    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1866    
1867    checkpoint51p_post
1868    o create initial cd_code package
1869      - WARNING: the initialization of fields within packages
1870        is broken because INI_FIELDS (where READ_CHECKPOINT is
1871        called) is called *before* PACKAGES_INIT_VARIABLES.
1872        This seems to be backwards since
1873        1) its important to initially zero the entire field including
1874           the "halo" region
1875        2) zeroing needs to be done *before* reading pickup info
1876           and the pickup call might or might not happen in any
1877           particular run
1878      - this needs an overhaul for R2
1879    o cleanup verification/*/code/GMREDI_OPTIONS.h
1880    o cleanup testreport
1881    
1882    checkpoint51o_post
1883    o bringing AD-related verif's up to date with genmake2
1884      - carbon/
1885      - global_ocean.90x40x15/
1886      - hs.94.1x64x5/
1887      - (front_relax/ )
1888    o (more) consistent directory structure for AD-related verif.'s
1889    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1890    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1891    o bug fix in find_alpha.F for MDJWF:
1892      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1893        change rho -> rho-rhoConst
1894      - replace call find_rho to find_rhonum
1895    o initialisation of rFlx extended to full array (required by TAF)
1896      and shifted to thermodynamics
1897    o removed PTRACERS.h in ptracers routine
1898    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1899    o Correcting initialisations for fVerU, fVerV.
1900    o helping TAF to recognize dependency on kUp for
1901      fVerU, fVerV
1902    o Replacing delZ by delR in pkg/ctrl/
1903    checkpoint51o_pre
1904    
1905    o undid all of cp51 pending some cleanups and discussion
1906    o added the [#include "AD_CONFIG.h"] statement to all files that need
1907       it for adjoint/tl #defines
1908     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1909     o removed tools/genmake since it no longer works
1910    
1911    checkpoint51n_post
1912    o modifications to make FREEZE flux visible to pkg/kpp
1913      - moved surfaceTendencyTice from pkg/seaice to main code
1914      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1915      - subroutine FREEZE now limits only surface temperature
1916        (this means new output.txt for global_ocean.90x40x15,
1917         global_ocean.cs32x15, and global_with_exf)
1918    o added surface flux output variables to TIMEAVE_STATVARS
1919    
1920    checkpoint51n_pre
1921    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1922    o added [#include "AD_CONFIG.h"] to all files that use the following
1923      defines:
1924      - ALLOW_ADJOINT_RUN
1925      - ALLOW_TANGENTLINEAR_RUN
1926      - ALLOW_ECCO_OPTIMIZATION
1927    
1928    checkpoint51m_post
1929    o incorporating changes to get TAMC/TAF working in genmake2
1930      - added new TAMC/TAF targets to the Makefile
1931      - various cleanups related to package handling
1932      - these changes should have no impact on the forward model
1933    
1934    checkpoint51l_post
1935    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1936     - faster algorithm for cal_addtime.F
1937     - higher precision arithmetic, where needed
1938     - pkg/exf *startdate variables changed from calendar date to
1939       model integration time
1940    
1941    checkpoint51l_pre
1942    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1943    o enable to apply restoring on S & T only in a latitude band.
1944    o update output (external_forcing_surf modif. change truncation errors)
1945       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1946    
1947    checkpoint51k_post
1948    o change default to: useNHMTerms=.FALSE.
1949     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1950       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1951     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1952        exp1, ideal_2D_oce
1953     - change data file of oceanic exp (leave the results unchanged for now)
1954       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1955    o set gravitySign automatically according to the vertical coordinate used
1956      (and change sign: back to "logical" value: +1 when R increases downward)
1957    o added an include barrier to the default CPP_OPTIONS.h and
1958      removed the #include "PACKAGES_CONFIG.h" from it
1959    o fix a bug in mom_fluxform (from chk51j_post)
1960    
1961    checkpoint51j_post
1962    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1963    o adjusted some flow directives (dynamics, thermodynamics)
1964    o added cubed-sphere case to test cost function
1965    o heckpoint_lev?_directives.h now include
1966      pkg-specific directives, whenever those are enabled.
1967    o Moving pkg-specific flow directives to corresponding pkg
1968      Moving pkg-specific differentiation list to corresponding pkg
1969      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1970      ---> conventions are
1971           - pkg_ad.flow
1972           - pkg_ad_diff.list
1973           - pkg_ad_check_lev?_dir.h
1974    
1975    checkpoint51i_post
1976    o merge of the branch-genmake2
1977      - knowingly breaks the older genmake
1978      - automatic generation of all ALLOW_${PKG_NAME} defines
1979      - new testreport supersedes older testscript
1980    o large number of package inclusion and header cleanups
1981    checkpoint51i_pre
1982    
1983    o new output for adjoin of global ocean vector invariant
1984    o fix for checkpoint of thermodynamic seaice and bulk_force
1985    o Steph gchem various cleanups
1986    
1987    checkpoint 51h_pre
1988    o fixed some single quotes
1989    o modify gchem pkg to be more versatile
1990    o modifications to clean up dic pkg
1991    o add pkg/cfc
1992    
1993    checkpoint51g_post
1994    o provide links for ARPACK and ADM*TLM
1995    o start removing verification/vero/
1996    o update AD-related stuff
1997      (in particular some IF-statements in model/src/ routines)
1998    o adding to verification/global_ocean.90x40x15/ adjoint of
1999      vector invariant setup
2000    
2001    checkpoint51f_post
2002    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2003    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2004      of tracer Green's fucntions for ocean inversion project.
2005    
2006    checkpoint51f_pre
2007    o Added on-the-fly spatial interpolation capability
2008        "USE_EXF_INTERPOLATION" to pkg/exf.
2009      - This is a temporary Cartesian-grid hack until
2010        the super-duper ESMF coupler becomes available.
2011      - See verification/global_with_exf/README for usage example.
2012      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2013        flags and modified pkg/seaice accordingly.
2014    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2015        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2016        non-local transport term.
2017    
2018    checkpoint51e_post
2019    o pkg/mom_vecinv:
2020      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2021      - add time-ave diagnostic of vorticity advection.
2022    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2023    o atmospheric geopotential: - include water vapor effect;
2024                                - use p^kappa in p* scaling.
2025    o land pkg: read initial state from files.
2026    o AIM : add stratospheric drag in the upper level
2027    
2028    checkpoint51d_post
2029    o change function ILNBLNK (=> last non-blank char.) to return zero
2030      (instead of the string length) when the string. char is empty
2031    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2032    o modif's to restore TAMC compatibility
2033      - avoid "_d" constructs in PARAMETER declarations
2034      - avoid interrupting lines by comment lines
2035    o Use cluster local disks for purely local I/O
2036      vs. globally visible disks needed for ctrl stuff
2037      (merged from ecco-branch)
2038      - new active_file_loc... and mdsio_..._loc routines
2039      - affected packages: autodiff, ctrl, grdchk, mdsio
2040    
2041    checkpoint51c_post
2042    o introducing integer flag debugLevel
2043      - debLevZero: suppress all output
2044      - debLevA: standard
2045      - debLevB: equivalent to current debugMode=.TRUE.
2046    o introducing pathname variable mdsioLocalDir for mdsio
2047      that can be specified at runtime
2048      (relevant for cluster I/O to local disk)
2049    `
2050    >>>checkpoint51b_post
2051    adjoint of ptracers
2052    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2053    o extended state in checkpoint_lev?, etc.
2054    o alternative ctrl/cost with tr1 or ptracer
2055    o new comlev1_bibj_ptracers
2056    o new ptracers.flow
2057    o made ptracers_forcing same as external_forcing_s
2058    o added verification for adjoint with ptracers
2059      - adm. grdchk fail so far
2060      - tlm. grdchk OK
2061      - checked tapelev/comlev recomputations: OK
2062    <<<checkpoint51b_pre
2063    
2064    checkpoint51a_post
2065    o added code for biogeochemistry package
2066      - new pkgs: dic, gchem
2067      - new subroutine in ptracers
2068    o modify code for biogeo packages
2069      - in model/src and pkg/ptracers
2070    
2071    checkpoint51
2072    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2073      - autodiff, ctrl, exf, grdchk, seaice
2074      kept separate packages
2075      - cost, ecco, obcs
2076    o updating verification/internal_wave, verification/lab_sea
2077      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2078    
2079    checkpoint50i_post
2080    o Preparing next differentiable checkpoint and sync
2081      of MAIN vs. ecco-branch
2082      - 1st step: this one is differentiable
2083      - 2nd step: next(! not this) checkpoint will have updated packages
2084                  from ecco-branch)
2085    
2086    checkpoint50h_post
2087    o new package "land": provide surface BC for AIM.
2088    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2089    o AIM: use true log-P extrapolation for near surface temp (= as in
2090        F.Molteni paper) ; update aim.5l_cs output.
2091    o New variable in PARM03 for more flexible pickups
2092    o somewhat cleaned package initialisation sequence for
2093      ctrl/ cost/ ecco/ in packages_... routines
2094    
2095    checkpoint50g_post
2096    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2097      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2098      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2099        made the default because of faster convergence than ADI
2100    
2101    checkpoint50f_post
2102    o exf totally restructured
2103      - replaced all exf_set_ routines by one generic exf_set_gen.F
2104        and made sure it's still differentiable
2105      - split exf_getffields.F into new exf_bulkformulae.F
2106      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2107      - updated adjoint/makefile and relevant verif. accordingly
2108    
2109    checkpoint50f_pre
2110     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2111          + change Evap over land. (update aim.5l_cs output)
2112     o added missing .cvsignores and made uniform across expts
2113     o changed configuration of tidal_basin_2d expt
2114     o added pkg/debug functions for tracing code in fatal crashes
2115     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2116     o new fn in pkg/monitor to stop model if solution grows too big
2117     o removed lots of single quotes from comments
2118    
2119    checkpoint50e_post
2120    o make KPP work with PTRACERS
2121     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2122       nearly a copy of kpp_transport_s
2123     - there is no analogue to SurfaceTendencyS, so I have to use
2124       gPtr(of the surface layer) instead
2125    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2126    checkpoint50e_pre
2127    
2128    checkpoint50d_post
2129    o change kpp output from multiple-record state files to single-record state
2130      files analogous to write_state.F
2131    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2132      analogous to the cg2d-related output.
2133    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2134      so that writing to internal file fn (with length 512) fails.
2135    checkpoint50d_pre
2136    
2137    checkpoint50c_post
2138    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2139    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2140    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2141    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2142    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2143    
2144    checkpoint50c_pre
2145    Merging from release1_p13:
2146    o bug fix for pkg/seaice dynamic solver
2147    o Added SEAICE_initialHEFF to pkg/seaice
2148    
2149    checkpoint50b_post
2150    o store u*,v* in gU,V instead of in guNm1,gvNm1
2151    o in order to put the momForcing out of the Adams-Bashforth:
2152      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2153      to timestep.F
2154    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2155    o re-generate output for highly sensitive test-exp:
2156       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2157    
2158    checkpoint50b_pre
2159    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2160    o corrected CPP option mismatch in exf_Bulk... functions for case
2161      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2162    
2163    checkpoint50a_post
2164    o Bug fix for merging between c50 and KPP.
2165      ikey was passed from thermodynamics to kpp_calc via
2166      common block rather than being recomputed in kpp_calc,
2167      in contradiction with new key itdkey.
2168      New key ikppkey created, and tamc.h headers updated.
2169    
2170    checkpoint50
2171    - 2nd step of merge with ecco-branch:
2172      merge changes in ecco-branch back into main trunk
2173    - bug fix in find_alpha
2174    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2175    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2176    - merged some sliced AD support routines
2177    
2178    checkpoint49
2179    merged from ecco-branch:
2180    o exf:
2181      - Enable initialisation of forcing fields to constant
2182        (runtime) values.
2183      - in exf_getffields.F
2184        Reduce i-/j-loop to interior domain, discarding overlaps.
2185        That also fixes wrong TAF-key computations for key_1, key_2
2186        with bulf formulae.
2187      - exf_init.F modify #ifdef for exf_init_evap
2188      - exf_getffieldrec.F, ctrl_getrec.F
2189        The following INT-usages are not safe:
2190          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2191          fldcount = int(fldsecs/fldperiod) + 1
2192        and were modified.
2193    o autodiff: checkpoint_lev...
2194      - updated storing for bulk formulae (some arrays were missing)
2195      - added state for seaice package
2196      - synchronized with main branch
2197    o DIVA:
2198      Modif.s in
2199      - the_main_loop.F
2200      - the_model_main.F
2201      and added cost_final_restore.F cost_final_store.F
2202      o With these changes, it is possible to fully separate
2203        the first forward run to compute the cost function (mdthe_main_loop)
2204        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2205        into separate model executions.
2206        This enables better tuning of DIVA to given queue sizes.
2207      o Loss of cost function value in consecutive DIVA runs is
2208        fixed by storing to 'costfinal' file.
2209      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2210        beginning/end of adjoint integration is accounted for.
2211      The current changes apply to TAF-1.4.26.
2212      TAF has one remaining bug, requiring one manual change
2213      (see MITgcm manual).
2214    o cal: synchronized between MAIN and ecco-branch
2215    
2216    checkpoint48i_post
2217    o Changes to restore differentiability of code w.r.t. previous tag
2218      (mostly adding new routines to make list and replacing
2219      pressure by totPhiHyd).
2220    o Updated and merged grdchk package
2221      - has both ADM and TLM checks
2222      - works for single- and multi-proc.
2223      - output cleaned
2224      - worked successfully for parallel DIVA
2225    o genmake:
2226      - Adding -platform=SP4
2227      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2228    o Modif. for DIVA:
2229      ctrl_unpack should not be called in intermediate DIVA interval.
2230      (similar thing would apply for active files such as
2231      tbar, sbar, psbar, which should not be reinitialised;
2232      only relevant for ecco-branch)
2233    
2234    checkpoint48h_post
2235    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2236    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2237    o Added SEAICE_initialHEFF to pkg/seaice
2238    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2239    
2240    checkpoint48g_post
2241    --- EOS:
2242    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2243      store total Potential in totPhyHyd for diagnostics & EOS.
2244    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2245    --- Pressure/geopotential gradient:
2246    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2247    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2248      ( changes results of global_ocean_pressure )
2249    o NLFS + z-coord.: add eta*Rho' contribution.
2250    o accurate phiHyd when using interface-W at the middle between 2 centers
2251     ( changes results of ideal_2D_oce )
2252    o includes r* 2nd term in potential gradient.
2253    
2254    checkpoint48f_post
2255    Merging from release1_p12:
2256    o Modifications for using pkg/exf with pkg/seaice
2257      - improved description of the various forcing configurations
2258      - added basic radiation bulk formulae to pkg/exf
2259      - units/sign fix for evap computation in exf_getffields.F
2260      - updated verification/global_with_exf/results/output.txt
2261    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2262      (SBO) core products, including oceanic mass, center-of-mass,
2263      angular, and bottom pressure (see pkg/sbo/README.sbo).
2264    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2265      to avoid negative values in shallow regions.
2266      - updated verification/natl_box/results/output.txt
2267      - updated verification/lab_sea/results/output.txt
2268    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2269    o Added useSingleCpuIO option (see PARAMS.h).
2270    o Updated useSingleCpuIO option in mdsio_writefield.F to
2271      work with multi-field files, e.g., for single-file pickup.
2272    o pkg/seaice:
2273      - bug fix in growth.F: QNET for no shortwave case
2274      - added HeffFile for specifying initial sea-ice thickness
2275      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2276    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2277      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2278    o pkg/seaice:
2279      - adjoint-friendly modifications
2280      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2281    
2282    checkpoint48e_post
2283    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2284    o dynamics: change definition of computational domain & adapt mom_fluxform
2285      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2286    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2287        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2288        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2289        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2290        inverted_barometer solid-body.cs-32x32x1
2291      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2292    
2293    checkpoint48d_post
2294    o in preparation for r*:
2295     a) use pre-computed gradient of hydrostatic potential:
2296        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2297     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2298        => affects results of glob_oce_pressure (different truncation error)  
2299      update output.txt of ideal_2D_oce & global_ocean_pressure
2300    
2301    checkpoint48d_pre
2302    o in preparation for r*:
2303      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2304      pass the 2 comp. of the grad. as arguments to momentum S/R.
2305      but for the moment, only used if it does not change the results.
2306    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2307    
2308    checkpoint48c_post
2309    Modifications in treatment of initial flux forcing controls
2310    to avoid extra storing of flux fields.
2311    
2312    checkpoint48c_pre
2313    o Added tidal_basin_2d experiment (currently 1D!)
2314    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2315    
2316    checkpoint48b_post
2317    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2318     (modification to pressure gradient not yet implemented)
2319    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2320      (for U & V) that are used for vertical advection of momentum.
2321    
2322    checkpoint48a_post
2323    o In preparation for r*, use temp. array to compute vertical transport
2324       in flux-form momentum pkg. => change results of few test-exp.
2325      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2326                        lab_sea, natl_box & plume_on_slope
2327    
2328    checkpoint48
2329    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2330    
2331    checkpoint47j_post
2332    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2333    o moved adexch from forward_step to addummy_in_stepping
2334    o added exch in ctrl_map_...
2335    o aveFreq.=0. at end of cost_final to avoid overwrite in
2336      reverse checkpointing loop
2337    o Yet more changes in gmredi:
2338      * adgmredi_calc_tensor
2339        avoiding all recomputation of gmredi_slope_limit
2340      * adgmredi_x/y/rtransport
2341        added flag for excessive storing to avoid recomp. of
2342        u/v/rtans, dTdx/y/z
2343        -> this is not really necessary and very memory-consuming
2344      * adgmredi_slope_psi:
2345        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2346      * gmredi_slope_limit
2347        re-activated full calculation of taperfct for case 'ac02'
2348    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2349    
2350    checkpoint47i_post
2351    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2352    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2353      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2354    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2355    o gmredi: fix few bugs.
2356    
2357    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2358    This will be a good checkpoint to plug into the ecco-branch.
2359    o few modif.'s to get latest version adjointed
2360      (mainly kick out code in ini_linear_phisurf)
2361    o modif's to run adjoint with exactConserv
2362    o case GM_BOLUS_ADVEC should be cleaned
2363      S/R gmredi_slope_psi should be cleaned
2364    o verification/carbon now has exactConserv=.TRUE.
2365    
2366    checkpoint47g_post
2367    o time-average AIM output: becomes independent from statvars time-average
2368      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2369    o After TAF bug fix:
2370      Tested adjoint of gmredi package.
2371      Tests were done with checkpoint47 rather than with latest
2372      checkpoint47f_post since the latter is broken for the adjoint
2373      verification/carbon/ contains both ADM and TLM gradient checks.
2374    Here they are, before they get changed/lost/stolen.
2375    Mostly modif.'s to fix numerical sensitivities.
2376    Gradient checks OK for
2377    - GM_taper_scheme:
2378      * clipping
2379      * ac02
2380      * linear
2381      * glw91
2382      * dm95
2383      * ldd97
2384    - GMREDI_OPTIONS:
2385      * GM_VISBECK_VARIABLE_K
2386      * GM_NON_UNITY_DIAGONAL
2387      * GM_EXTRA_DIAGONAL
2388      * GM_BOLUS_ADVEC
2389    in conjunction with data.gmredi parameters to be checked in
2390    in a few minutes under verification/carbon/code/
2391    
2392    checkpoint47f_post
2393    Merging from release1_p10:
2394    o modifications for using pkg/exf with pkg/seaice
2395      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2396        and SEAICE_EXTERNAL_FLUXES
2397      - pkg/exf CPP options EXF_READ_EVAP and
2398        EXF_NO_BULK_COMPUTATIONS
2399      - usage examples are Experiments 8 and 9 in
2400        verification/lab_sea/README
2401      - verification/lab_sea default experiment now uses
2402        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2403    
2404    checkpoint47e_post
2405    o created a tag prior to creating a branch
2406    
2407    checkpoint47d_post
2408    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2409      at the bottom boundary had an erroneous half slip boundary condition
2410    o added bottom drag and no slip boundary condition capabilities to
2411      oceanic pressure coordinates code
2412    o added new verification experiment global_ocean_pressure, this experiment is
2413      also described in the tutorial section of the manual
2414    checkpoint47d_pre
2415    
2416    checkpoint47c_post
2417    o Added a verification experiment for a global cubed-sphere ocean run
2418      -  verification/global_ocean.cubed32x32x30
2419      -  uses pkg/therm_seaice and pkg/bulk_forcing
2420    
2421    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2422    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2423      when using P-coordinate; only implemented for atmospheric config.
2424    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2425      NOTES: requires option NONLIN_FRSURF to be "#define".
2426    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2427    
2428    checkpoint47b_post
2429    Merging from release1_p9:
2430    o pkg/seaice
2431      - removed GOTO's and added taf directives
2432      - double precision constants to reduce the g77 (Linux)
2433        to F77 (SGI) differences reported in release1_p8
2434    o tools/genmake
2435      - added SGI options
2436    o verification/testscript
2437      - updated to that of checkpoint47a_post
2438    o verification/global_ocean.90x40x15/input/eedata
2439      - modified for SGI f77 compatibility
2440    o verification/lab_sea
2441      - added description of sea-ice model
2442      - added missing matlab routines
2443      - added test of thermodynamics parallelization
2444    
2445    checkpoint47a_post
2446    o new pkg: aim_v23
2447     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2448       for now, keep the same surface forcing as before.
2449     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2450     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2451     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2452    o add diagnostic of surface correction term in monitor output
2453    
2454    o bulk_force and therm_seaice
2455    - Two packages:  bulk_force (Bulk forcing)
2456      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2457    - Earlier integration from Stephaine Dutkiewicz
2458      and Patrick Heimbach.
2459    - Two ifdef statements for compile time,
2460       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2461    
2462    checkpoint47
2463    differentiable version of checkpoint46n_post
2464    o bug fix in quasihydrostaticterms
2465    o * "clean" adjoint code (in terms of extensive recomputations)
2466        can now be obtained for all GMREDI options (i.e. for
2467        - GM_VISBECK_VARIABLE_K
2468        - GM_NON_UNITY_DIAGONAL
2469        - GM_EXTRA_DIAGONAL
2470        - GM_BOLUS_ADVEC )
2471      * However, wrong gradient check problem remains unsolved.
2472      * New CPP options have been introduced for different
2473        tapering schemes
2474    o external_fields_load now part of differentiation list
2475    o pressure needs multiple storing;
2476      would be nice to have store_pressure at beginning or
2477      end of forward_step, e.g. by having phiHyd global (5-dim.)
2478      (NB: pressure is needed for certain cases in find_rho,
2479      which is also invoked through convective_adjustment).
2480    o recomputations in find_rho for cases
2481     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2482    o #define ATMOSPHERIC_LOADING should be differentiable
2483    o ini_forcing shifted to begining of initialise_varia
2484    o Incorporating QNVS line search routines into MITgcm
2485      (this is separate code, and therefore not under pkg)
2486      lsopt/, optim/
2487    o Updated verification/carbon/
2488      - #define GM_VISBECK_VARIABLE_K
2489      - GM_taper_scheme    = 'ldd97'    
2490    
2491    checkpoint46n_post
2492    Merging from release1_p8:
2493    o verification/natl_box:
2494      updating new external_fields_load routine
2495    o New package: pkg/seaice
2496      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2497      The sea-ice code is based on Hibler (1979-1980).
2498      Two sea-ice dynamic solvers, ADI and LSR, are included.
2499      In addition to computing prognostic sea-ice variables and diagnosing
2500      the forcing/external data fields that drive the ocean model,
2501      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2502      The implied surface heat flux is then stored in variable
2503      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2504      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2505      non-local transport term.  Because this call precedes model
2506      thermodynamics, temperature under sea-ice may not be "exactly" at
2507      the freezing point by the time theta is dumped or time-averaged.
2508      N.B.: fairly large differences in accuracy occur across
2509            different platforms/compilers; comparison between
2510            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2511            generated output gives:
2512       T           S           U           V
2513      C D M    c        m  s        m  s        m  s        m  s
2514      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2515      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2516      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2517    
2518      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2519    o GAD:
2520      - generated new common blocks to account for call of
2521        same gad routines with differing traceridentities
2522        (needed to modify tracerIdentity indices in GAD.h)
2523      - generated separate common blocks for case useCubedSphereExchange
2524        (Department of Futurology)
2525      - parameter lists to gmredi_?transport: added tracerIdentity
2526      - added new key indices to tamc.h
2527    o external_fields_load:
2528      - added this routine to TAF list
2529      - needed to make some common blocks global and additional storing
2530        along the same lines as exf package (checkpoint_lev?_directives.h)
2531    o exf:
2532      updated external forcing package
2533      - bug fixes carried over from ecco-branch
2534        (missing OBCS_OPTIONS.h in two routines)
2535      - enable easy to use "no forcing".
2536      - added exf I/O for atmospheric loading
2537      - added exf I/O for runoff data
2538      - transfered scaling between exf <-> MITgcm to exf namelist
2539    o Adding new verification experiment global_with_exf.
2540      This verification experiment is almost identical to the
2541      global_ocean.90x40x15 experiment, except that it uses
2542      the exf (and cal) package instead of the
2543      external_fields_load routine (cf README file).
2544    
2545    checkpoint46m_post
2546    o modified testscript to return -- when there are no lines of "%MON" output
2547    o added new flag "quasiHydrostatic" for QH mode
2548      and new routine quasihydrostaticterms()
2549    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2550      New routine: mom_u_coriolis_nh()
2551    o fixed sign of non-hydrostatic metric terms in u and v equations.
2552      Depend on correct sign of gravitySign.
2553    o added work.pc* to .cvsignore in aim directories using ifc
2554    o introduced flag for controllin non-hydrostatic metric terms
2555    o removed gravitySign from PARM04
2556    o switched to g77/ifc from pgf77 in aim experiments
2557    
2558    checkpoint46l_post
2559    o made convective adjustment work with pressure coordinates:
2560     - changed the direction of k-loop in convective_adjustment.F for the
2561       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2562     - adjusted the reference pressure k-index in convective_adjustment.F
2563     - adjusted the convection condition in convect.F (in analogy to
2564       calc_ivdc.F)
2565     - convective_adjustment no longer computes anything on the halos
2566     - removed the warnings about negative salinity from find_rho.F and
2567       find_alpha.F; instead the new routine look_for_neg_salinity, called
2568       at the beginning of find_rho, find_alpha, and find_beta, does a
2569       check of the entire slice, if CPP-option
2570       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2571    checkpoint46l_pre
2572    
2573    checkpoint46k_post
2574    o fixed the verification/global_ocean.90x40x15 experiment:
2575     - new bathymetry (the world according to A., JMC, and M.)
2576     - new initial fields and forcing fields (*.bin files)
2577     - new POLY3.COEFFS (for the next release one should switch to a full
2578       equation of state: JMD95P or MDJWF)
2579     - fixed several errors and redundancies in the data file
2580     - experiment uses looped cells
2581     - added matlab directory with diagnostic scripts for plotting of output
2582    
2583    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2584     - read AIM physics parameters from a file (data.aimphys)
2585     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2586    
2587    checkpoint46j_post
2588    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2589    o move wVel computation at the end of the time step, in S/R integr_continuity
2590    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2591    o update timeave pkg for wVel diagnostic.
2592    checkpoint46j_pre
2593    
2594    checkpoint46i_post
2595    o Clean up AIM package (and keep the results unchanged):
2596      include CPP_OPTION and use IMPLICT NONE in all routines ;
2597      declare all the variables _RL ; use _d 0 for all numerical constants.
2598      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2599    
2600    checkpoint46h_post
2601    o cleaned up the use of rhoNil and rhoConst.
2602      - rhoNil should only appear in the LINEAR equation of state, everywhere
2603        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2604        and the dynamical equations are all divided by rhoConst
2605    o introduced new parameter rhoConstFresh, a reference density of fresh
2606      water, to remove the fresh water flux's dependence on rhoNil. The default
2607      value is 999.8 kg/m^3
2608    o cleanup up external_forcing.F and external_forcing_surf.F
2609      - can now be used by both OCEANIC and OCEANICP
2610    checkpoint46h_pre
2611    
2612     Added code to convert surface volume flux (fresh water) into
2613     a mass flux when using P coordinates in the ocean (OCEANICP).
2614     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2615    
2616    checkpoint46g_post
2617    o Include a new diagnostic variable phiHydLow for the ocean model
2618      - in z-coordinates, it is the bottom pressure anomaly
2619      - in p-coordinates, it is the sea surface elevation
2620      - in both cases, these variable have global drift, reflecting the mass
2621        drift in z-coordinates and the volume drift in p-coordinates
2622      - included time averaging for phiHydLow, be aware of the drift!
2623    o depth-dependent computation of Bo_surf for pressure coordinates
2624      in the ocean (buoyancyRelation='OCEANICP')
2625      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2626        Theta, Salinity, and Pressure in the parameter list. This routine is
2627        presently contained in find_rho.F. This routine does not give the
2628        correct density for 'POLY3', which would be a z-dependent reference
2629        density.
2630    o cleaned up find_rho
2631      - removed obsolete 'eqn' from the parameter list.
2632    o added two new verification experiments: gop and goz
2633      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2634    checkpoint46g_pre
2635    
2636    checkpoint46f_post
2637    o Enable tangent linear (forward mode) gradient checks:
2638      - extended active file handling to g_... files
2639      - added TANGENT_SIMULATION to theSimulationMode
2640      - extended grdchk package accordingly
2641    o added tangent linear setup in verification/carbon/code_ftl
2642    o added adjoint setup in verification/front_relax/code_ad
2643    
2644    checkpoint46e_post
2645    o Added new equation of state -> MDJWF
2646      - EOS of McDougall et al., 2002, JAOT, submitted
2647      - caveat: the equation of state is only valid for a smaller (more
2648        realistic?) range of values than JMD95P/Z and UNESCO
2649      - added masks to the calculation of pressure in store_pressure
2650      - added more check values for density in check_eos (ini_eos.F), some of
2651        the old check values are out of the range of the MDJWF-eos, so don't
2652        expect perfect matches for those
2653    checkpoint46e_pre
2654    
2655    checkpoint46d_post
2656    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2657      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2658      case of pressure coordinates. eosType='JMD95Z' in
2659      combination with buoyancyRelation='OCEANICP' now causes an error.
2660    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2661      in find_alpha/beta.
2662    checkpoint46d_pre
2663    
2664    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2665      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2666    
2667    checkpoint46c_post
2668    o Changes necessary for ocean in p-coordinates
2669     -  Added new buoyancy relation = 'OCEANICP'
2670     -  Added new parameters = gravitySign (this used to be contained inside
2671        the factor dRdZ which I added when we first switched to R coordinates).
2672     X GM/Redi is not compatible (yet)
2673     X bottom drag and no-slip need to be debugged.
2674    checkpoint46c_pre
2675    
2676    checkpoint46b_post
2677    o Added new equation of state -> JMD95Z and JMD95P
2678      - EOS of Jackett and McDougall, 1995, JAOT
2679      - moved all EOS parameters into EOS.h
2680      - new routines ini_eos.F, store_pressure.F
2681    o Added UNESCO EOS, but not recommended because it requires
2682      in-situ temperature (see JMD95)
2683    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2684      unesco.f to be used with POLY3
2685    checkpoint46b_pre
2686    
2687    checkpoint46a_post
2688    o Added (atmospheric) pressure loading
2689      - new field in FFIELDS.h, etc...
2690      - new cpp flag ATMOSPHERIC_LOADING
2691    o Changed hFacC to _hFacC in calc_phi_hyd.F
2692    o Added SHORTWAVE_HEATING to some files for consistency
2693    checkpoint46a_pre
2694    
2695    checkpoint46
2696    further merges from release1_p5
2697    o new ctrl package
2698      - adopted from ECCO environment to enable optimization
2699      - added Eliassen Palm fluxes to controls
2700    o added Eliassen Palm flux controls to gradient check package
2701    o cost package
2702      - Compatible with new ctrl package
2703      - added Eliassen Palm cost hooks
2704      - modif's of existing cost functions
2705    o Adjoint-related bug fixes in kpp:
2706      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2707      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2708    o autodiff package
2709      - flow directives:
2710        + new for S/R do_the_model_io
2711        + enhanced for S/R checkpoint
2712        + new gmredi.flow
2713      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2714        disable adcommon.h/g_common.h by default.
2715      - fixed problem for adjoint of global_max
2716    o modified verification/carbon/
2717    o New setup for adjoint of global_ocean
2718    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2719    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2720    o incorporated hooks for sponge layer code (external_forcing.F)
2721    
2722    checkpoint45d_post
2723    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2724    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2725      (affects plume_on_slope "cg2d" output)
2726    o add new parameter deltaTfreesurf for free-surface time stepping
2727    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2728    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2729    o change phiMin in exp1 (to agree with documentation)
2730    o add new flags:
2731     - T,S forcing inside/outside Adams-Bashforth
2732     - turn off temp,salt advection and/or forcing
2733     - for each tracer, define internal flag for multiDimAdvection & A-B
2734    o monitor: change definition of KE to check conservation of Energy
2735    
2736    checkpoint45c_post
2737    o Removed f90 comments ("!")
2738    o Modified initialisations to enable exf package for MITgcm
2739      (without invoking ECCO_PACKAGE).
2740    o modifications to gradient check package (Martin Losch)
2741      - enable centered differences
2742      - modified format of standard output
2743    
2744    checkpoint45b_post
2745    o cleaned exchange calls in cg2d
2746    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2747    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2748      to configure barotropic setup (Martin Losch)
2749    o moved some initialisations within bi,bj loop in dynamics
2750      (TAF flow dependency)
2751    o in initialise_varia, moved call packages_init_variables
2752      before convective_adjustment_init
2753      (corresponding adjustment of TAF tape initialisation).
2754    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2755    
2756    checkpoint45a_post
2757    o compute Rho over the whole domain (extend iMin,jMin indices)
2758    o specific exchange for X-slice domain (case Ny=1)
2759    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2760    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2761    
2762    checkpoint44h_post = checkpoint45
2763    o Fix to restore differentiability:
2764      place at which packages_init_variables is called in
2765      initialise_varia is crucial for reverse control flow.
2766    o modifications in GMRedi to enable stable adjoint
2767      (corresponding modif's in thermodynamics, dynamics)
2768    o added missing hook for sponge layer code in external_forcing
2769    o modified test cost functions
2770    o storing in gad_advection (plus removal of write(0,*)!
2771    o missing headers TR1.h added in convective_adjustment routines
2772    o errorMessageUnit set non-equal zero in eeboot
2773      (conflict on some platforms, e.g. IBM SP3)
2774    o modified carbon verif.
2775    
2776    checkpoint44h_pre
2777    o vertical grid option: allow to put the Interface at the middle between
2778      2 cell-centers ; replace delZ in pkg/kpp by drF.
2779    o GM Advective form: Tracers are advected using the residual transport (=
2780      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2781    
2782    checkpoint44g_post
2783    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2784      results) ; ifdef missing in thermodynamics.F
2785    
2786    checkpoint44f_pre,checkpoint44f_post
2787    o added PTRACERS package
2788      This allows an arbitrary number of passive tracers to be integrated
2789      forward simultaneously with the dynamicaly model.
2790      + Implemented so far:
2791        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2792        - I/O and checkpointing
2793        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2794      + Not implemented so far:
2795        - KPP
2796        - OBCS
2797      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2798        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2799        line in data.pkg.
2800      + This package is disabled by default since it increases storage.
2801    
2802    
2803    o testscript: added -cleanup option
2804    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2805                 b) enable to filter 2D fields.
2806    
2807    checkpoint44e_pre,post
2808    o re-wrote convective adjustment to use pre-calculated weights
2809      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2810      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2811      Original calls to convect() still in place.
2812    
2813    chkpt44d_pre,post
2814    o added missing EXCLUDE_MONITOR flags
2815    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2816      (incompatible typ in MIN/MAX expressions caused problems
2817      on IBM SP3)
2818    o in genmake added variable MAKEDEPEND
2819      plus resetting for case SunOS
2820    o added timer_stats.c routine for IBM SP3
2821    o removed variables in dynamics
2822    !!! I forgot to create tag chkpt44d_pre !!!
2823    !!! But chkpt44d_pre = chkpt44c_post    !!!
2824    
2825    o real fresh water flux implemented with non-linear free-surface.
2826    
2827    chkpt44c_pre,post
2828    o few fix (mask in shap_s2, EmPmR in external_field_load,
2829      USE_NATURAL_BCS in solve_for_P);
2830    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2831    
2832    checkpoint44b_pre/_post
2833    o merge of relevant stuff from the ecco-branch:
2834      - genmake: removed $S64 overwrite for case SunOS
2835      - pkg/exf: update and corrections for field swapping and obcs
2836      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2837                  harmonized between ECCO and MITgcm
2838      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2839                      updated checkpointing_lev... lists for obcs
2840      - model/src: minor changes in forward_step, plot_field
2841                   added directive for divided adjoint in the_main_loop
2842      - pkg/mdsio: added mdsio_gl_slice
2843    
2844    o check parameters & config (chkpt44a_pre,post)
2845    o OBC and NonLin_FrSurf.
2846    
2847    checkpoint44
2848    o fix bug in mom_vi_del2uv
2849    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2850    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2851    o update AIM experiments (NCEP input files)
2852    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2853    o added some stuff for AD
2854    
2855    checkpoint43
2856    o added two new advection tests
2857    o added global 4x4 degree ocean test
2858    o added test of H&S94 with free surface on cube
2859    o some final mods for gradient check, adjoint,...
2860    
2861    checkpoint42
2862      Fixed AD-related problems:
2863    o Store directives up-to-date with re-arranged Adams-Bashforth
2864      (mainly thermodynamics.F)
2865    o New store directives for multi-dim. advection schemes
2866      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2867      * new common block and key passkey
2868      (mainly gad_advection.F)
2869    o Modified store directives for split of dynamics/thermodynamics
2870      for the case ALLOW_KPP
2871    o Cleaned argument list for timestep_tracer.F
2872    
2873    checkpoint41
2874    o re-formatted/added comments in prologues of key subroutines
2875      to work with protex
2876    
2877    checkpoint40
2878    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2879    o added FLT (floats) package from Arne along with demo. experiment
2880    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2881      implementation of forward-in-time forcing terms
2882    o more mods for non-linear free-surface including new variable
2883    o modified multi-dim method to work on cube
2884    o bug fix in KPP (from DM)
2885    
2886    checkpoint40pre9
2887    o added DST advection schemes
2888    o fix MPI bug on SGI's
2889    o modifications for non-linear free-surface
2890    o fixed conditionals for fixed flow/passive tracer only mode
2891    o added tension/strain form of stress tensor
2892    o changes to commenting of arguments for TAF/TAMC
2893    o added/updated many matlab scripts
2894    o added multi-dimensional advection method for tracers
2895      
2896    checkpoint40pre8
2897    o new package rw/
2898      Added method for dumping intermediate local arrays:
2899      mdsio_writetile - same as mdsio_writefield except works from inside
2900                        bi,bj loop
2901      mdsio_writelocal - same as mdsio_writetile except works for local
2902                         arrays
2903      write_local_r? - higher-level wrapper for mdsio_writelocal
2904      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2905      Example given at end of mom_vecinv.F that dumps some local arrays.
2906    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2907      control flux-form versus vector invariant code.
2908      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2909      or genmake -DISABLE ...
2910    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2911      (additional storing is now needed for case vecinv;
2912      currently nothing implemented to switch this storing off
2913      in case fluxform is used since no CPP flag available).
2914    
2915    checkpoint40pre7
2916    o bug fix in dynamics.F
2917      calc_viscosity called before k=1,Nr loop.
2918    o added some #ifdef's ALLOW_PASSIVE_TRACER
2919    o cleaned initialisations in ctrl_map_ini
2920      related to TAF
2921    
2922    checkpoint40pre6
2923    o split dynamics into thermodynamics & dynamics
2924    o corresponding split of calc_diffusivity into
2925      calc_diffusivity, calc_viscosity
2926      (kpp_calc_diff, kpp_calc_visc).
2927    o Added diffkr, kapgm to control variables
2928    o bug fix in gmredi_slope_limit for ldd97
2929    
2930    checkpoint40pre5
2931    o proper initialization of Adams-Bashforth time stepping
2932      + uses forward step for very first step of model (iter=0)
2933    o re-generated *all* output since almost all output is modified by this
2934      change (sorry but we've been putting this one off for about 2 years)
2935      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2936        *not* regenerated since they are already out of date and I don't
2937        want to create the impression that they are suddenly working.
2938    o removed KAP stuff for DEC's
2939    o modified/added many .cvsignore files in */code and */input
2940    o added new expt "solid-body.cs-32x32x1"
2941      + this uses an alternative form of ini_curvilinear_grid.F which
2942        is not necessarily any better than the current one...
2943    
2944    checkpoint40pre4
2945    o added re-initialisations of utrans,vtrans,rtrans in
2946      calc_common_factors which are crucial for TAF.
2947    o extended iMin,jMin range for calc_common_factors,
2948      calc_diffusivity
2949    o added option ALLOW_PASSIVE_TRACER
2950    o a few minor updates and fixes
2951    
2952    checkpoint40pre3
2953    o created calc_gtr1.F for gad package
2954    o split the_main_loop and re-introduced forward_step
2955    o some recomputations of nIter0 for TAMC
2956    
2957    checkpoint40pre2
2958    o Updated to latest branch of AJA, JMC
2959    o Added gradient check package
2960    o Added routines for passive tracer handling
2961    o Added carbon sequestration sensitivity experiment
2962    
2963    checkpoint39
2964     o Modifications and fixes to support TAMC
2965       (mainly missing or wrong directives)
2966     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2967       in addummy_in_stepping
2968     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2969     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2970     o Included following packages:
2971       cal: calendar
2972       exf: external forcing
2973       ecco: essential routines to control use of cal, exf
2974             (NB: this is not the full ECCO environment)
2975     o disabled some packages by default in genmake
2976    
2977    checkpoint38
2978     o see notes_c37_adj.txt
2979     o corrected wrong layer index in external_forcing_t
2980     o replaced the_main_loop/forward_step by the_main_loop
2981     o removed forceoutput from write_state
2982       (replaced criteria for initial/final state)
2983     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2984    
2985    checkpoint37
2986     o mdsio.F routine split and packaged in pkg/mdsio
2987       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2988        used unless genmake -disable=mdsio)
2989     o allow a more precise surface-geopotential gradient for the atmosphere
2990       taking into account the change in space of Alpha (=1/rho) at the surface.
2991     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2992       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2993     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2994       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2995       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2996     o Time-Average diagnostics defined as a pseudo package "timeave".
2997     o pickup files : old pickup (before c35) did not work with new code (c35
2998       and after) unless activating 2 commented lines in initialise-varia.
2999     o Non-Hydrostatic pickup file Pb fixed.
3000     o bug with Rigid-lid version (since c35) fixed.  
3001    
3002    checkpoint36
3003     o implement Crank-Nickelson barotropic time-stepping
3004     o recover Time-Average diagnostics
3005     o fix Pb in checkpoint (PR#19)
3006     o AIM become a standard package ; clean unused CPP_kees
3007    
3008    checkpoint35
3009     o subtantial rewrite of dynamics.f
3010     o allows staggered time-stepping
3011     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
3012     o added bottom drag (linear + quadratic)
3013    
3014    checkpoint34
3015     o Modified exchange routines for correct reverse simulation.
3016     o Added verification output to comply with bug fix in impldiff.F
3017       as of c33 (exp2, natl_box).
3018     o Corrected store directives in dynamics.F
3019     o Corrected array boundaries in impldiff.F
3020     o Corrected array dimensions in gmredi.
3021       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
3022     o Added routine GLOBAL_SUM_INT to global_sum.F
3023     o Added mdsio_gl.F for ECCO purposes.
3024    
3025    checkpoint33
3026     o Fixed bug in lower BC in impldiff.F
3027     o Fixed confusion about units of forcing arrays in FFIELDS.h
3028       namely Fu,Fv,Qnet,Qsw,EmPmR:
3029       - Removed verification/natl_box/code/external_fields_scale.F
3030         (did not differ from that in model/src)
3031       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
3032         (see FFIELDS.h for description)
3033       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
3034         kpp_calc.F and kpp_transport_t.F
3035       - Removed model/src/external_fields_scale.F and calls to it
3036       - verification/natl_box uses flux data with "atmospheric" sign so
3037         a special version of external_fields_load.F is used to
3038         change the data as it's read in. This way, the arrays
3039         have the right units and signs at all times tha a user could
3040         possibly use them.
3041     o Corrected genmake to delete a temporary file during configuration
3042    
3043    checkpoint32
3044     o Scaling of forcing fields moved from external_forcing.F to
3045       external_fields_scale.F, called directly after loading fields.
3046     o Surface relaxation terms added to surface tendency fields in
3047       extra subroutine.
3048     o impldiff.F changed to avoid storing by TAMC of huge intermediate
3049       fields.
3050     o Changes in GMRedi to comply with packaging structure.
3051     o Modifications and bug fixes in KPP package.
3052     o Verification experiment for KPP added (verification/nat_box/)
3053    
3054    checkpoint31
3055     o Packages interface brought in line with defined standard
3056       -> new routines packages_...F
3057       -> changes in initialise_fixed.F, initialise_varia.F
3058       -> enables initialisation interface for ECCO package
3059     o Rescaling of external forcing fields immediately after read
3060       (removed from external_forcing.F)
3061       -> new: surface_fields_scale.F
3062       -> affects ini_foorcing.F, external_fields_load.F
3063     o Computation of surface tendencies before tendency updates.
3064       -> new: external_forcing_surf.F
3065     o Change of variable names useGMRedi, useKPP, useECCO
3066     o Further changes in dynamics.F, impldiff.F for TAMC
3067     o Tested for experiments 0, 2, 4.
3068       - not yet tested for GMRedi.
3069       - not yet tested for KPP.
3070    
3071    checkpoint30
3072     o Updates for OBCs
3073     o New experiment for test OBCs (internal_wave)
3074     o New output.txt in verification/exp4/results/
3075     o Updates for KPP: calculation of viscosity corrected, new variables
3076       kpp_dumpFreq and kpp_taveFreq
3077     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
3078       and entry for T90 in genmake
3079    
3080    checkpoint29
3081     o packaged KPP and GM/Redi
3082    
3083    checkpoint28
3084     o Corrected initialization of hFacMin for difference vertical coordinates
3085     o Modified calculation of partial cell thickness to more robust algorithm
3086     o config_summary.F: replaced write_1D_... by write_0D_...
3087       read_write.F: added subroutines write_0D_...
3088     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
3089       included some initialisations required for TAMC.
3090     o routine calc_isoslopes: modified sqrt computation to make it
3091       differentiable for zero argument.
3092     o routines dynamics, impldiff:
3093       included store directives and tape key computations required for TAMC.
3094     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
3095    
3096    checkpoint27
3097     o fixed calc_isoslopes() to so that cancellation of terms in tensor
3098       formulation works properly with variable resolution.
3099     o restructured the calling tree between the_model_main() and dynamics()
3100     o split initialise() into initialise_fixed() and initialise_varia()
3101     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
3102       in new routine ini_psurf()
3103    
3104    checkpoint26
3105     o moved some #ifdef in optional routines to encompass everything
3106       except the argument declarations. This was using up some memory.
3107     o fixed macros like _ADT to work with both versions of Linux cpp
3108     o cleaned up some unused and uninitialized variables
3109       (helps when debugging with strict compile options)
3110     o split up CPP_EEOPTIONS.h into options and macros
3111       (macros are now in eesupp/inc/CPP_EEMACROS.h)
3112     o patch for 2 processor JAM mode
3113    
3114    checkpoint25
3115     o updates for OBCs and NH
3116     o dramatically reduced memory usage
3117     o added "JAM" routines for use on Artic network
3118     o parameterization of convection by implicit vertical diffusion
3119     o added a diagnostic of convective index
3120     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
3121       (this is was partly for OBCs and NH but also in anticipation of
3122        an explicit free-surface option)
3123     o initial state input files for U and V
3124    
3125    checkpoint24
3126     o Removed some spurious "REAL"s
3127     o Updated KPP to latest version from JPL
3128     o Added a COS(latitude) in horizontal viscosity
3129    
3130    checkpoint23
3131     o Added del^4 diffusion for salt and temperature
3132     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
3133    
3134    checkpoint22
3135     o Made many small changes: implicit none, format(i5), etc...
3136     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
3137    
3138    checkpoint21
3139     o Introduced new I/O package that supports direct-access records (mdsio.F)
3140     o Split-up mid-level I/O routines
3141     o Updated input data for experiments 0,1,2,4 and 5
3142     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
3143    
3144    checkpoint20
3145     o Tidied up open-boundaries some more
3146     o Added non-hydrostatic code
3147     o Fixed some input data
3148     o Modified MPI start-up to work in "coupled" context.
3149    
3150    checkpoint19
3151     o Tidied up directory structure for verification experiments.
3152     o Added new code for open boundaries.
3153     o Corrected advective terms near boundaries.
3154     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
3155     o Implemented free-slip/no-slip BCs and del^4 dissipation.
3156     o Split default parameters out of ini_parms.F into set_defaults.F.
3157    
3158    checkpoint18
3159     o Further changes for optional code generation with
3160       CPP - ugh!
3161    
3162    checkpoint17
3163     o Beginning to incorporating modularity
3164       for supporting atmos. and ocean configs.
3165     o Small changes for TAMC complinace
3166     o New ultra simple test case. Barotropic box
3167       configuration "exp0".
3168    
3169    checkpoint16
3170     o Minor changes to exchange routines to support
3171       accumulation in reverse mode. Adjoint of an
3172       assignment is an addition.
3173     o Changes to support compilation by TAMC (LR(1)
3174       syntax) and by g77 under Linux ( 72 character
3175       limit ).
3176    
3177    checkpoint15
3178     Rewrote exchange routines to allow
3179     o General tile <-> tile connectivity.
3180     o TAMC reverse mode flag ( is this really needed? )
3181     o Variable width overlap and exchange region widths.
3182     o Hooks for sharing data via DMA, Arctic, Memory Channel,
3183       shmput/shmget, VIA, SYSV shmem and every other cool
3184       communication method.
3185    
3186    checkpoint14
3187     Consistent isomorphism chages made. These allow dynamical core
3188     to support both pressure and meters as a vertical coordinate.
3189    
3190    checkpoint13
3191     Release which corrects global_max problem and a couple
3192     of KGM time-averaging diagnostic errors. Also contains
3193     a double-gyre experiment setup as well as the baseline
3194     4 degree global template. The double gyre template is
3195     organised to allow it to be applied automatically to
3196     the baseline configuration.
3197    
3198    branch-point-rdot
3199     A few tidy-ups have been made bt the real point of this
3200     check-point (excuse the pun) is to allow a branch to be
3201     made for the purposes of adding the rDot alterations.
3202     I don't want to commit the rDot to the main-trunk until
3203     we've actually tested it...
3204    
3205    checkpoint12
3206     Tidy up and added generic genmake script (formerly
3207     configure script).
3208     Released to testers.
3209    
3210  checkpoint11  checkpoint11
3211   Re-arranged initialise() and introduced ini_vertical_grid()   Re-arranged initialise() and introduced ini_vertical_grid()
3212   and ini_masks_etc().   and ini_masks_etc().

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