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revision 1.76 by jmc, Fri Jul 12 14:52:08 2002 UTC revision 1.775 by mlosch, Thu Mar 8 14:46:12 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 seaice: if ALLOW_ATM_WIND is undefined use wind stress
8      directly to drive seaice model (C-grid only)
9    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
10     - reintroduce computation of wind from stress,
11     - compute tau (in exf_bulkformulae.F) from windstress averaged to
12       mass points to avoid tau = 0
13     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
14    o rdmnc.m: make it work with "global" files created with gluemnc
15    o rdmnc.m : some improvements in dealing with singleton dimension
16      (tested on all testreport mnc output files).
17    o genmake2: disable pkg/profiles if netcdf test fails.
18    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
19    o move call to cal_readparms up to make calendar parameters/variable available
20      to all packages
21    
22    checkpoint58v_post
23    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
24      useDynP_inEos_Zc tested.
25    o pkg/exf: changes to properly interpolate/mask/scale initial fields
26    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
27      and portions thereof.  See read_cs.txt for description and examples.
28    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
29      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
30      following the great-circle arc between those 2 points.
31    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
32      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
33    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
34     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
35     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
36     - still needs work (not working with some options ; efficiency to improve)
37       and serious testing.
38     - use this scheme for temperature & salinity in 2 advection test exp.:
39       advect_xy & advect_xz, respectively.
40    
41    checkpoint58u_post
42    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
43    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
44    o testreport: add option "-skipdir" to skip some test.
45    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
46      momentum calculation.
47    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
48    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
49      remove checkpoint.F and the_correction_step.F (no longer used);
50      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
51    o add option (linFSConserveTr) to correct for tracer source/sink due to
52      Linear Free surface
53    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
54    o pkg/thsice: fix reading mnc-pickups
55    
56    checkpoint58t_post
57    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
58    o pkg/mdsio:
59     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
60       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
61       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
62     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
63     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
64       either MDS_READ_FIELD or MDS_WRITE_FIELD )
65     - new S/R (to replace MDSWRITEMETA), which allows to write more
66       informations (variable names, time ...) to meta files.
67     - modify rdmds.m to give back the meta file content.
68    o pkg/diagnostics: change vertical interpolation to be safer, and more
69       flexible (define p-levels to interpolate to in data.diagnostics);
70      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
71       diagnostic pointer.
72    o pkg/seaice: more cleaning up of seaice_growth, added many comments
73    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
74    o fix multi-category seaice:
75     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
76       SEAICE_MULTICATEGORY
77     - fix short wave heat flux
78    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
79       and allow to use EVP solver. Change forward lab_sea: test both EVP
80       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
81    o Initial check-in of lab_sea adjoint
82      (very similar to natl_box_adjoint/code_seaice)
83      * used C-grid and EVP solver
84      * used KPP, GM/Redi
85      * uses inAdExact=.TRUE.
86      * gradient checks fail for both ADM and TLM
87        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
88        f.d. gradients actually seem more problematic than ADM, TLM gradients;
89        issue is related to forward mismatch between g77 an ifort
90    o pkg/seaice: overhaul of thermodynamics
91     - growth.F and groatb.F are replaced by new routine seaice_growth.F
92     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
93     - move a few global fields out of SEAICE.h into seaice_growth.F and
94       make them 2D (FICE/QNETO/ ...)
95     - remove FO (it is the same as QNETO)
96     - introduce a few local fields to avoid modifying external fields such
97       as atemp, etc.
98    
99    checkpoint58s_post
100    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
101      changed exf_set_gen.F so that
102        genperiod=0 means input file is one time-constant field and
103        genperiod=-12 means input file contains 12 monthly means
104    o CG2D: use pre-computed solver main-diagonal (stored in common block);
105      this affects truncation error ; generate new output file for exp. which
106      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
107        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
108        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
109        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
110        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
111        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
112    o start implementation of deep-atmosphere and anelastic formulation
113    o verification: remove 2nd copy of input files and use script "prepare_run"
114      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
115    o mom_common/vecinv/fluxform: fix a few initialisation isssues
116    o profiles: fix for multithreaded case
117    
118    o diagnostics: rename few diags:
119      s/'PRESSURE'/'RCENTER '/g
120      s/'TICE    '/'oceFreez'/g
121      s/'TAUX    '/'oceTAUX '/g
122      s/'TAUY    '/'oceTAUY '/g
123      s/'SWFLUX  '/'oceQsw  '/g
124      s/DIFx/DFxE/g
125      s/DIFy/DFyE/g
126      and add few ocean-forcing diagnostics:
127      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
128    o modifications to pkg/seaice/growth.F and budget.F, which change results of
129      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
130      as actual snow thickness.  It now refers everywhere to effective snow
131      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
132    
133    checkpoint58r_post
134    o modifications to pkg/seaice/growth.F, which change results of
135      lab_sea experiment: fixes pertain to melting snow over open water, to
136      masking EVAP under sea ice, and to using the correct AREA variable for
137      computations of EVAP, PRECIP, HSNOW, and GHEFF
138    o add ability to read bathy, salt, and theta using MNC (off by def)
139    o add flooding algorithm and advection of HSNOW for pkg/seaice;
140      both are turned off by default and do no change any results
141    o seaice advection with pkg/thsice: a step toward the use of non-linear
142      advection scheme, but #ifdef or commented out for now (requires more EXCH).
143    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
144      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
145      in natl_box (affects results @ truncation level: update output.txt)
146    o multi-threading and IO:
147      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
148      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
149        (needed to work with SingleCpuIO): tested in all verif. exp.
150    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
151      affects the results (but none of the verification test uses this scheme).
152    o Adding some pkg/diagnostics capability to pkg/seaice
153      (will certainly be subject to changes)
154    o ctrl: adding new control variables:
155      lwflux, lwdown, evap, snowprecip, apressure, runoff
156    
157    checkpoint58q_post
158    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
159      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
160      high_res_cube configuration by 4% on Columbia.
161    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
162      add (in global_with_exf/code) a version of EXF_INTERP_READ without
163      dynamical allocation (seems to work in multi-threaded).
164    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
165      single CPU io) so that TAF does not have to see EESUPPORT.h
166    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
167    
168    checkpoint58p_post
169    o obcs: stop if obcs is used with useCDscheme = .true.
170    o shelfice:
171     - fix a sign error so that no slip at shelfice interface works
172     - remove stop for combination non-hydrostatic code and shelfice. That does
173       not mean, that the results are correct, but at least they are numerically
174       stable
175    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
176    o added adjoint exch routined for all exch*3d* routines
177      and updated flow directives
178    
179    checkpoint58o_post
180    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
181      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
182    o change controling S/R for writing pickup file (new S/R do_write_pickup)
183      and clean-up reading/writing of pickup files.
184    o fix local version of read/write pickup (NH part) in rotating_tank/code
185    o simplify EXCH interface:
186     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
187     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
188    o added the regrid package
189    o shelfice:
190     - add a simple boundary layer scheme to reduce noise
191     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
192    
193    checkpoint58n_post
194    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
195       local variable (not in common block).
196    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
197      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
198      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
199        to work with SingleCpuIO.
200    o add "_d 0" to real constant of pkg/cfc subroutines ;
201       update exp. cfc_exemple & tutorial_cfc_offline output files.
202    o multi-threading and IO:
203      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
204        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
205      - barrier before and after reading.
206      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
207      - avoid using MDS_WRITELOCAL for LAND pkg output.
208      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
209        common-block variables ; Allows multi-threading with master-thread IO.
210    o change default MAX_NO_THREADS from 32 to 4 ;
211      and stop cleanly when MAX_NO_THREADS is too small.
212    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
213    
214    checkpoint58m_post
215    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
216       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
217    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
218       keep global_ocean.90x40x15 (for AD testing) with former secondary test
219       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
220    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
221        add MITgcm_tutorials (= code + all the tutorials)
222    o ecco, option to compute cost for total ssh (mean+anom)
223    o consistent with addition of ptracer and ssh in pkg/profiles
224    o profiles: adding ptracer and ssh
225    o testreport: change multi-test output-file name
226      (from output.txt.{name} to output.{name}.txt)
227    o profiles: now ok for mutli-tiles case
228    o seaice: add 4 parameters for different advection schemes for area,
229      (effective) seaice thickness, enthalphy, and snow height. Their default
230      is the standard parameter SEAICEadvScheme
231    o calc_gw:
232     - add cosFacU in zonal viscous flux (harmonic.visc.).
233     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
234       of tutorial_plume_on_slope.
235    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
236    o calc_gw: true flux-form, account for horizontal grid spacing.
237      update rotating_tank results, but not plume_on_slope (affected at
238      truncation level, 11 digits).
239    
240    checkpoint58l_post
241    o calc_gw:
242     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
243     - remove side-drag for now (need to fix it); update plume_on_slope results.
244     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
245    o commit code to make SST/SSS weights spatially variable
246      (based on either variable in-situ or variable initial T/S weights)
247    o pkg/ecco:
248      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
249        now based on horizontally varying weights wthetaLev, wsaltLev
250      * cost_averagesflags now returns year indices in addition to day, month
251      * sflux balance is performed on annual basis
252        (sflxumm, sfluxmm2, bal_sfluxmm)
253      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
254        including separate counting and multipliers
255    o pkg/rbcs
256      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
257    
258    checkpoint58k_post
259    o testreport:
260     - always build in dir. "build" (if not there, mkdir build instead of building
261       & running in input)
262     - run in dir run (if it exists), in build otherwise.
263     - call prepare_run (if input/prepare_run exists)
264     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
265    o pkg/exf modifications to interpolation and rotation routines for more
266       reasonable treatment of North Pole singularity: for tracers North Pole
267       value is set to northernmost zonal-mean value, for zonal velocity it is
268       set to zero, and for meridional velocity it is set to northernmost value.
269    o pkg/exf/exf_check_range.F
270     - add tile index to diagnostics and move stop statement to the very
271       end of the routine.
272    o pkg/diagnostics: (diagnostics_main_init.F)
273      define title of isomorphic variables according to the current config.
274    o pkg/thsice with pkg/seaice dynamics:
275    - fix domain of computation (interior only, required for exf) and do exchanges
276    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
277    o towards a standard way of dealing with multi-threading in MONITOR
278      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
279    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
280       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
281    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
282    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
283    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
284       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
285    o tracer advection:
286     - clean-up and simplify calc_common_factors.F
287     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
288       advection subroutine (but still not used within DST advection S/R)
289    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
290    
291    checkpoint58j_post
292    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
293      from file (collects calls previously in FORWARD_STEP)
294    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
295    o adjoint store dir. adjusted accordingly
296    o genmake2
297      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
298    
299    checkpoint58i_post
300    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
301      on wind stress (SEAICEstressFactor defaults to 1.)
302    o Total number of Timers is finite (<=40): comment out 2 non-essential one
303      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
304    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
305      on CS-grid: no longer loosing mass.
306    o exf & curvilinear-grid: no longer modify longitude xC & xG.
307    o pkg/ggl90: fix sloppy output and fix a bug
308    o pkg/seaice: added SEAICEuseEVPpickup parameter
309      - Set to false in order to start EVP solver with
310        non-EVP pickup files when using SEAICEuseEVP
311      - fix sign error in diffusion in seaice_calc_rhs
312    
313    checkpoint58h_post
314    * Modifications for bottom topography control
315      o replace hFacC by _hFacC at various places
316      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
317      o add non-self-adjoint cg2d_nsa
318      o update autodiff support routines
319      o re-initialise hfac after ctrl_depth_ini
320      o works for 5x5 box, doesnt work for global_ocean.90x40x15
321    * Adding verification for 5x5 box (4-layer) bottom topography control
322    
323    checkpoint58g_post
324    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
325       used for mean seasonal cycle, mean diurnal cycle); add an example
326       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
327    o pkg/ggl90:
328      - add parameter (minimum surface kinetic energy)
329      - fix bug (avoiding division by zero)
330    o couple pkg/thsice to pkg/seaice:
331      - modify advection in seaice to accomodate new scalar fields to be advected
332      - only muliDimAdection scheme work with seaice/thsice
333      - mapping of thsice-variables to seaice-variables, back and forth
334      - does not break the verification experiments, but does not give the
335        desired results either
336    o pkg/seaice
337      - make (default) second order advection a bit less confusing?
338    
339    checkpoint58f_post
340    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
341      to pkg/seaice):
342      - new routines thsice_map_exf and thsice_get_exf provide the interface
343      - add an additional formal parameter to thsice_solve4temp
344    o pkg/exf:
345      - add new fields wspeed, snowprecip (to be able to couple to thsice)
346      - correct Stefan-Boltzmann constant
347      - new parameter for longwave surface emittance
348      - separate some stuff from exf_bulkformulae into new routines  
349        exf_radiation, exf_wind
350      - add new parameters and constants: longwave emissivity for ocean, ice
351        and snow, evaporation parameters over ice
352      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
353        either wind from stress or stress from wind
354    o pkg/thSIce:
355    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
356    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
357       and THSICE_CALC_THICKN
358    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
359    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
360      to make debugging easier.
361    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
362    o pkg/bulk_force:
363      - clean-up comments and parameters ;
364      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
365    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
366      generate new output for test-experiment: aim.5l_cs.thSI
367    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
368      testreport accordingly
369    
370    checkpoint58e_post
371    o SEAICE_CGRID adjoint done
372    o R_STAR adjoint implemented.
373      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
374      * need to sort out init. of h0facc, etc.
375    o Make pkg/profile fully independent of ecco,cost, etc. stuff
376      to be able to use it in pure forward.
377    
378    checkpoint58d_post
379    o upgrade simple test-experiment to tutorial example:
380     step.1: duplicate the experiment and (step.2) will remove the old copy.
381      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
382      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
383      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
384      tutorial_global_oce_biogeo    <- copy of dic_example
385      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
386      tutorial_plume_on_slope       <- copy of plume_on_slope
387      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
388      tutorial_global_oce_optim     <- empty for now (David ?)
389      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
390     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
391    o correct a sign problem in cost_scat.F
392    o obcs and ptracers: fix boundary conditions for advections schemes
393      with larger stencil
394    o thsice adjoint: start
395    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
396      completeness
397    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
398      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
399    o ptracers adjoint:
400      * avoid extensive recomputatations
401      * fix missing re-init. of gptr (missed by TAF)
402    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
403      me to turn off the excessive output to STDOUT that this package produces
404    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
405      and add those terms in Vector-Invariant formulation.
406    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
407      if the control period (xx_hfluxperiod etc) is 0
408    o in profiles pkg, clean routines and fix details
409    o in ecco pkg, reading ssh data:
410      fix problem in case the model does not start at iter0=0
411    o fix mnc-pickup/restart for ptracers
412    o new package prifiles:
413      code to compute profile-based cost by Gael Forget
414      (modifs in ecco, ctrl, autodiff)
415    o Benign bug fix in initialization (spotted by M. Mazloff) of
416      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
417    
418    checkpoint58c_post
419    o adjoint: finish NLFS adjoint and provide reference output in
420      verification/global_ocean.90x40x15/results_ad_nlfs
421    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
422      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
423      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
424      with SEAICE_CGRID defined.
425    o move calendarDumps from "data" to "data.cal" and clean-up the code
426      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
427    o add useEXF & useCAL flags (for now, set in hard-coded way)
428    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
429      (were missing in NH mode, and wrong in quasihydrostatic mode).
430      waiting for Chris updated version of calc_gw to add those CALLs.
431    o fix bug in quasihydrostatic S/R ;
432      add a test for this option: global_ocean.90x40x15.qshyd
433    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
434      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
435    o add on/off flag useOffLine for package OFFLINE
436    o seaice:
437      - modify advection so that it works also on the C-grid
438      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
439        problem in multi-tile runs with C-grid
440      - add flags for clipping ice velocities and/or masking solver forcing
441      - fix drag (ocean on ice) formulation and a bug that caused noise in the
442        C-grid solver
443      - added a few comments to seaice_diffusion.F
444      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
445        are now exclusive)
446      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
447        required re-ordering the code a little:
448       + make DAIRN global variable (defined in SEAICE)
449       + move computation of the viscosities eta and zeta into a new separate
450         routine (because I need to recompute them in seaice_ocean_stress.F)
451    
452    checkpoint58b_post
453    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
454      update output.txt of exp. aim.5l_cs.thSI
455    o various mnc cleanups and improvements:
456      + shrink lookup tables by factor of ~4
457      + better error reporting when running out of lookup space
458      + able to handle longer path/file names (up to 500 chars)
459    o adjoint:
460      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
461      - TBD: "hidden" mom_vecinv recomp. in dynamics
462    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
463     (allow to differentiate between forcing components using new integer flags:
464      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
465     and add new flag to put Dissipation tendency out of Adams-Bashforth.
466    o ecco
467      - enable trend removal from SSH anomaly obs.
468    o adjoint
469      - a fix for PmEpR when #undef EXACT_CONSERV
470      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
471      - try to fix "hidden" recomp. in forward_step for NLFS
472        (NLFS seems broken sometimes after I checked it in)
473    o seaice:
474     - add c-grid version of the dynamic solver:
475       + three new routines that are the c-grid substitute lsr, dynsolver
476         and ostres
477       + put a few fields that were local to dynsolver into global common
478         blocks, so that I can move the computation of stresses etc into
479         seaice_lsr (saves coding but may break the adjoint).
480     - replace more hardwired parameters by runtime parameters
481     - add ice masks that mask the rhs of the implicit solvers where there
482       is no ice (commented out in seaice_dynsolver, because i am not sure
483       if this works properly), eventually this should replace the clipping
484       of ice velocities in seaice_dynsolver to +/-40cm/s.
485    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
486      include it only where its needed
487    o move balancing of fluxes before the call of external_forcing_surf
488    o seaice:
489      - correct units of turning angles (now they are really in degrees)
490      - move computation of GWATX/Y out of main routine into dynsolver
491      - initialize GWATX/Y in seaice_init
492    o Apply mask on Fresh-Water flux (needed for SSH forcing).
493      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
494    o seaice: add runtime flags for turning angles (default to zero)
495    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
496      and trend from exf forcing and ctrl control adjustments
497    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
498      (since checkpoint57x_post)
499    o change the default rotation period to 86164.s = the Earth rotation
500    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
501      and based on a reference stratification. Tested within hs94.cs-32x32x5.
502    o seaice advection: add code for choosing between the default (2nd order
503      central differences) and multiDim advection schemes provided by
504      pkg/generic_advdiff
505    o seaice:
506      - removed all references to SEAICE_GRID.h fields from
507        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
508        (cubed-sphere configuration will change a little)
509      - grid computations in seaice_init are obsolete now.
510      - cleaned up code a little so that is easier to read (hopefully).
511      - added new (better?) discretizations of default advection and diffusion
512        (turn on with SEAICEuseFluxForm)
513      - replace 1 in 3d global fields by kSurface in growth.F
514      
515    checkpoint58a_post
516    o seaice:
517      - bug fix in advect.F
518    o shelfice:
519      - separate shelfice load anomaly from pload (breaks with time
520        dependent forcing), => introduce constant field shelficeLoadAnomaly.
521        Its default is 0., but it may be computed more cleverly from (unknown)
522        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
523        done offline. A good approximation of the pressure load anomaly is
524        necessary to avoid large initial adjustment processes underneath
525        deep-reaching shelfice.
526      - small fix in ISOMIP shelfice_thermodynamics
527      - add more sophisticated thermodynamics of Hellmer (1989), this is
528        now the default
529      - give a few constants more intuitive names
530    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
531      if bulk formulae are used in long integration (especially EmPmR). Turn
532      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
533      if balancePrintMean, the imbalance that is substracted is printed to
534      STDOUT.
535    o fix bug (typo) in obcs_apply_eta.F
536    o add a new package shelfice which enables us to model the circulation
537      underneath shelf-ice with draughts of hundreds of meters.
538     - works
539     - to do: + include improved thermodynamics
540              + check whether kSurfC (from model/inc/SURFACE.h) can be used
541                instead of new field kTopC
542              + can we use topoFile, Ro_surf and existing code in ini_depth.F
543                instead of new field R_shelfIce and new code in ini_depth.F
544                and ini_mask_etc.F?
545              + adjust vertical mixing schemes?
546    o seaice pkg:
547     - add a cpp-flag to include a simple formula for a salinity dependent
548       freezing point of sea water at the surface
549     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
550       meridional stresses are now different (and hopefully correct)
551    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
552       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
553       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
554    o pkg/diagnostics: add options and parameters for regional-statistics
555       diagnostics ; define regions by reading a region-mask from a file
556       (might add other options later)
557    o pkg/bulk_force:
558     - add option and parameters to use AIM surface-flux formulae.
559     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
560       others forcing fields (defined in PARM05, parameter file "data") are loaded
561       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
562     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
563     - use the right EXCH call for uwind,vwind (to work on CS-grid).
564     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
565       and parameters (note: calcWindStress replaces .NOT.readwindstress).
566     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
567    
568    checkpoint58
569    o add "--embed-source" option to genmake2 which, when the supporting
570      tools can be compiled (as determined by genmake2) will turn on the
571      embed_files package which then embeds the entire MITgcm source code
572      (*.[fFhc] + Makefile) used for the build within the executable
573      - requested by CNH but off by default
574      - adds a paltry <9MB to the mitgcmuv executable in most cases
575      - only writes the output when useEMBEDSRC in eedata is true
576    o clean up 3-dim. relaxation codes:
577      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
578      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
579      * Thanks to Tom Haine for testing!
580    
581    checkpoint57z_post
582    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
583      affects output (@ truncation level) of exp. plume_on_slope ; updated.
584    o fix the pickup behavior for obcs in combination with ptracers
585    o fix a bug in ptracers_external_fields_load
586    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
587      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
588    o transfered surface NH pressure to eta field (if exactConserv).
589    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
590         and update lab_sea output.txt file.
591    o completing 3-dim. relaxation code: additional term
592         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
593      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
594      * At compile time, in "EXF_OPTIONS.h" set
595          #define  ALLOW_CLIMTEMP_RELAXATION
596          #define  ALLOW_CLIMSALT_RELAXATION
597      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
598          tauThetaClimRelax3Dim = 15552000.0,
599          tauSaltClimRelax3Dim  = 15552000.0,
600      * 3 cases:
601          1) Use a constant-in-time 3-dim. field
602          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
603          3) Real-time relax. to time-evolving prescribed field
604    o Adding Laplacian-type smoothness constraint on
605      initial and boundary (forcing) controls (ic, bc)
606      * enable at compile-time via
607        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
608      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
609      * Absolute scale somewhat unclear so far
610      * no area weighting was included since no other cost term does so far
611    
612    checkpoint57y_post
613    First step for a NLFS adjoint
614    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
615    o new init. routines for calc_r_star, calc_surf_dr
616    o still need to deal with ini_masks_etc
617    o testreport seemed happy
618    checkpoint57y_pre
619    
620    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
621    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
622    o add new offset feature to offline pkg (plus minor cleanup)
623    o cfc fixes for final year of integration
624    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
625      be in GCHEM_OPTIONS).
626    
627    checkpoint57x_post
628    o fix testreport Pb in multiple test experiment.
629    o cleanup our namelist syntax in verification:
630      - make it more F95 standards compliant (some work still needed)
631      - allows the vast majority of our tests to work with gfortran
632    o Non-Hydrostatic:
633     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
634     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
635    o Allow to apply AB on T,S rather than on AB(gT,gS):
636     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
637     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
638       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
639     - need a "clever" read_pickup to restart from the other AB formulation
640    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
641    o remove some unused variables (reduces number of compiler warnings)
642    o adjoint
643      * Disable useVariableViscosity for adjoint for time being
644        (there are a number of extensive recomputations)
645      * Initialize certain variables needed for adjoint
646    
647    checkpoint57w_post
648    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
649                 fix the singleCpuIO RS version of MDSWRITEFIELD
650       and add a WARNING if using globalFiles=T with multi-processors.
651    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
652      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
653    o tracer advection scheme:
654      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
655       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
656       was not very convenient).
657      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
658       (further tests needed for the implicit DST & Flux-Limiter schemes).
659    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
660      and sRef for convenience, handy, when you want to initialize
661      ptracers in a large domain with a constant non-zero value. Also,
662      untangle ptracers_init.F a little.
663    
664    checkpoint57v_post
665    o change dome exp. to use variable viscosity in side-drag terms.
666    o remove all the files from the cfc_offline test since they are now
667      incorporated into tutorial_cfc_offline which has been producing
668      identical results for a few days of testing
669    o add new parameter: sideDragFactor to enable half-slip-side BC
670      and change side-drag S/R to use viscosity from mom_calc_visc
671      (can switch back by setting sideDragFactor=0.); affects results at
672      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
673       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
674    o vorticity & strain are now computed without masking, to account for
675      no-slip-side BC in variable viscosity calculation ; mask is applied
676      anyway later on, before computing advection/coriolis terms.
677    o modify exp4 to test new obcs support for reading from external files
678      and for passive tracers
679    o fix behavior of ptracers_monitor when monitor output is written to a
680      netcdf-file; still not independent of monitor.F (writes in the same
681      file).
682    o change default value of tRef (put a uniform, meaningful value for ocean
683      & atmos) and initialize sRef (was missing, as Martin mentioned).
684    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
685      to be proportional to enstrophy dissipation length.  Thus,
686       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
687      This is now consistent with Smagorinsky and with the manual.
688    
689    checkpoint57u_post
690    o OBCS and PTRACERS: add open boundary support for passive tracers
691      - either use homogenous (pseudo) v.Neumann conditions or prescribe
692        OB-values from file; this is not different from the way theta and salinity
693        are treated
694      - however, Orlanski-radiation conditions are not supported, and the model
695        will stop if you use pTracers and Orlanski at the same time.
696      - beefed up the rountine obcs_external_fields_load: now only those open
697        boundary values are overwritten with values from files for which there
698        are really files, otherwise the OB-fields remain untouched. This makes
699        it possible to use different OBs at different ends of the domain (as
700        with EXF)
701    o reduce number of exch calls in shap_filt (s2).
702    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
703      truncation level) 4/5 MLAdjust test results (11&12 digits match).
704    
705    checkpoint57t_post
706    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
707    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
708      same truncation, independent of the face number: affects affects several
709      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
710    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
711      note that biharmonic viscosity + no-slip was not tested in any experiment.
712    o fix bug in non-linear free-surf side-drag ; generate new output for
713      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
714    o make mnc honor the writeBinaryPrec flag for most kinds of output
715    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
716    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
717      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
718    o add brackets in multi-terms sum to get same truncation, independent of
719      the face number (manage to get exactly same value of gU,gV at the cs-edge)
720      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
721    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
722      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
723      a maximum grid-scale Reynolds number.  Also, changes all length calculations
724      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
725      Suggested values of viscosity parameters found in mom_calc_visc.
726      Many new viscosity diagnostics available.
727    
728    checkpoint57s_post
729    o Add clearing-house for viscosity calculations, mom_calc_visc and
730      correct numerous bugs in LeithD and Smagorinsky discretizations.  
731      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
732      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
733      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
734      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
735      The Strain-Tension form is now called with useStrainTensonVisc=.true.
736      ViscAhStrain and viscAhTension are now retired.
737    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
738    o In response to JMC's bug report, genmake2 now ignores any soft-links
739      that it finds in the *current* directory when searching for files.
740      Soft-links found in any other source directories will still work as
741      they did before.
742    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
743      a C routine to unlimit the stack size
744    o mnc-ify pkg/aim snapshot vars
745    o mnc-ify pkg/land as requested by Daniel
746    o various changes to mnc including:
747      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
748      - output can now be grouped so that all files within a group
749          change the ITER portion of their names in lock-step together
750      - can now read ("global") PER-FACE (in addition to PER-TILE) files
751          and works with both EXCH1 and EXCH2 (but needs more testing)
752      - writing works for all verification test cases w/ g77 on Linux
753    
754    checkpoint57r_post
755    o make MNC variable initialization happen earlier
756    o add diagnostics for (almost) each term of the momentum Eq.
757    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
758    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
759    o remove MINIMAL_TAVE_OUTPUT option ;
760      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
761    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
762      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
763    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
764    o add time-dependent SST, SSS control
765    o cost terms in ecco/ modularized (new cost_generic.F)
766    o cost_averages routines are modularized (new cost_averagesgeneric.F)
767    o new infrastructure for seaice model vs. obs misfits in seaice/
768      * driver from the_main_loop.F is seaice_cost_driver.F
769      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
770      * gradient check in Exp. 6a of natl_box_adjoint/
771    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
772      (see README file)
773    
774    checkpoint57q_post
775    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
776    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
777      - bug was reported by Jean-Michel and Ian Fenty
778    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
779      update exp. cpl_aim+ocn output.
780    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
781      Needed for high-res. runs with large global files
782      to be able to limit tapelev size
783    o Changed some tests for adjoint:
784      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
785      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
786      * global_ocean.90x40x15/ back to default 3-level checkpointing
787    o Modifications to enable scripted COMMON to MODULE conversion
788      * verification/OpenAD/code/ has necessary scripts and description;
789      * converts, compiles and runs successfully;
790    
791    checkpoint57p_post
792    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
793    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
794      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
795    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
796    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
797      (was already the case for dissipation with mom_vecinv,
798       and also the case for grad.PhiHyd when staggered-timeStep)
799      This will allow to put dissipation out-off the AB time-stepping.
800     Unfortunately, affects truncation error. Update output of exp. that "fails"
801      (cg2d matching number) and leave the others for later: front_relax(10),
802      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
803      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
804    
805    checkpoint57o_post
806    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
807      (2) its ready to be documented during the 20050801 DocFest
808    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
809      for ideal_2D_oce and lab_sea on linux_ia32_g77
810    o set to #undef CTRL_SET_OLD_MAXCVARS_30
811      in global1x1_tot/code_seaice_adj to access indices 32, 33
812      (worth another tag)
813    
814    checkpoint57n_post
815    o adding precip control xx_precip 32
816    o adding swflux control xx_swflux 33
817    o Replacing 10 forcing penalty cost routines by 1 generic.
818    o Implementing partitioning in time-mean and variable adjustment
819      for atmos. state.
820    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
821    o in natl_box_adjoint:
822      * updated exp 1 to 10
823        (but does not have time-mean vs. variable split results yet)
824    o updated global1x1/*_seaice_adj/
825      to incorporate latest changes
826    o enable useSingleCpuIO for mdsio vector routines
827      (applies in particular to tapelev I/O)
828    o removed inefficient K-loop in all active_file*control*.F
829    
830    checkpoint57m_post
831    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
832      and advect_cs (use EXCH-2 and standard cs-32 grid files).
833    o pkg/exch2: filling of face-corner halo regions is optional
834      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
835    
836    checkpoint57l_post
837     tag before updating tutorials (pre-release-2)
838    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
839       for output and interpolation of input fields onto model grid)
840    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
841       Affects results of exp. rotating_tank ; update output.txt.
842    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
843          and taking the square quantity and/or using a fraction-weight field.
844    o fix aim_diagnostics_init.F mate numbers.
845    o add mnc output capability to diagnostics/diagstat and update
846      our cvsignore files for the ACSII output generated
847    
848    checkpoint57k_post
849    o lab_sea now uses diagnostics package and provides a suite of
850      new EXF diagnostics output.
851    
852    checkpoint57j_post
853    o exf
854      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
855        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
856        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
857      * extended diagnostics output
858        - now includes all EXF variables
859        - hs, hl moved to common block
860        - separate S/R for diagnostics, called after ctrl vector is added
861        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
862        - EXFqnet contains true Qnet (i.e. includes qsw)
863      * updated verif. lab_sea, global_with_exf
864      * Rearranging hflux (exf_mapfields -> exf_getforcing)
865        to ensure that diagnostics sees a true EXFqnet
866    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
867    o diagnostics pkg: change pointers so that 1 diagnostic can be used
868      several times with different frequencies.
869    o mnc-ify the thsice package as requested by Daniel Enderton
870      - the monitor--MNC output needs work
871      - many attributes need to be added (most are currently blank)
872    o mnc-ify theaim_v23 package as requested by Daniel Enderton
873      - many attributes need to be added (most are currently blank)
874    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
875    o add Sadourny like discretization to the 4th.O vorticity advection scheme
876    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
877      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
878         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
879    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
880     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
881    
882    checkpoint57i_post
883    o Diagnostics package was changed: diagnostic allocation is now deactivated
884      by setting an empty file name in the namelist (used to be by setting 0 frequency)
885    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
886      add 1rst Order upwind vertical Shear.
887    o add a quick fix for A/B checkpointing in OFFLINE mode
888    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
889      end-run around the C/Fortran linking horror in eesup/src/timers.F
890    o added pkg/runclock: allows user to terminate run based on wall clock
891    o added non-hydrostatic scaling parameter: nh_am2
892    o pkg/my82: futile attempt to make results compiler-independent by adding
893      some "_d 0", etc. no effect.
894    o for mnc output, fill the 'T' coordinate var with myTime and create a
895      separate 'iter' variable for iteration count
896    o pkg/diagnostics:
897      add new capability: output of Global/Regional & per-level statistics ;
898      tested against monitor output (including land & thSIce) on various exp.
899    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
900    
901    checkpoint57h_done
902      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
903      data.diagnostics, data.gchem, data.ptracers) is done.
904    
905    o pkg/diagnostics: prepare for Global/Regional statistics.
906      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
907    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
908      and rename it: DIFFERENT_MULTIPLE
909    
910    checkpoint57h_post
911    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
912    o pkg/diagnostics: change output frequency, now in seconds (instead
913      of Nb of iterations). This requires to change data.diagnostics.
914    checkpoint57h_pre
915    
916    o in mnc, let the user create the output dir if both mnc_outdir_date
917      and mnc_outdir_num are false
918    o add fflags() to pkg/diagnostics which allows one to specify, on a
919      per-file basis, the file precision [default behavior is unchanged]
920    o added diagnostics to pkg/kpp, including computation of mixed layer
921      depth based on a temperature/density criterion
922    o updated verification/natl_box to test the new pkg/kpp diagnostics
923    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
924    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
925    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
926      not mnc -- this mistake was found by JMC and is now corrected
927    
928    checkpoint57g_post
929    o add Adams-Bashforth 3rd Order time stepping:
930      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
931      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
932    checkpoint57g_pre
933    
934    o make lambda[Theta,Salt]ClimRelax spatially varying
935      (default remains spatially uniform constant based on tau)
936    o added new control variables
937      * init. uVel, vVel, etanN
938      * lambda[Theta,Salt]ClimRelax
939    o separate masks used for ctrl_pack/unpack 'from write_grid' output
940      (suggested by G. Forget)
941    
942    checkpoint57f_post
943    o add parameter "baseTime" = model base time = time at iteration zero
944      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
945      account for baseTime shift
946    o move Coriolis arrays from PARAMS.h to GRID.h
947    checkpoint57f_pre
948    
949    o mnc-ifying the seaice package
950    o introduced an alternative length scale calculation for use in the limiting
951      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
952    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
953    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
954      as well as grad(vort3).  Made it compatible with both approximate form
955      for the cubed sphere and full form of these gradients.  Added flag
956      useFullLeith to select between approximate and full form.  
957    o add "d0" in getcon.F to reduce differences between compilers/platforms
958      update output.txt of exp. fizhi-gridalt-hs
959    o change port_rand funtion to allow to set the seed.
960    o fix obscure MNC bug involving conversion between reals and integers
961      - it caused no problems with certain (eg. gcc, ifc) compilers but the
962        new version is now more standards-compliant
963    o adjoint-related modifications
964      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
965      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
966      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
967    
968    checkpoint57e_post
969    o Adding eddy stress controls a la Ferreira et al.
970    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
971    
972    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
973      update output.txt of exp. fizhi-gridalt-hs
974    o add more "Z" dimensions and associated coordinate vars to MNC
975    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
976    o parameter calendarDumps: when set, approximate months (30-31 days) and years
977      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
978      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
979      months and years.  Requires pkg/cal.
980    o diagnostics: add pickup functionality
981      - off by default for backwards compatibility
982      - current version only uses MDSIO -- MNC will be added
983    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
984    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
985    
986    checkpoint57d_post
987    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
988    o modify verification/ideal_2D_oce so that it tests the creation of mnc
989      output from the diagnostics package
990    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
991    o make genmake2 more portable by using ".$FS" instead of ".f" for more
992      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
993    o add coordinate variables to the MNC output from the diagnostics package
994    o change MNC-flags default value: true when useMNC=TRUE
995    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
996      the ability (off by default) to read the grid information using MNC
997    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
998    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
999    o do snap-shot diagnostics at the middle of the time-interval (instead of
1000      at the end).
1001    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1002      new test for AIM with thSIce + slab-ocean
1003    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1004    o move state variable diagnostics to the beginning of the time step ;
1005      (note: still needs some work specially for snap-shot diagnostics)
1006      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1007    
1008    checkpoint57c_post
1009    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1010    o generate new output.txt files on faulks with g77 & the new -ieee option
1011    checkpoint57c_pre
1012    
1013    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1014      update output.txt of exp. global_ocean.90x40x15
1015    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1016      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1017    o add saltFlux(+File) forcing capability with periodicExternalForcing
1018    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1019    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1020    o improvements for the MNC output from DIAGNOSTICS:
1021      - correct handling of the unlimitied dimension
1022      - all dims now have associated coordinate variables
1023      - variables located at U, V, and Corner ("Z") points are now written
1024        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1025        *all* data points are output
1026    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1027    o added pkg/seaice/seaice_monitor.F
1028    o mdsio_readfield.F can now read files visible only to master MPI process.
1029    o pkg/seaice: some test code for ice-modified ocean stress
1030    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1031      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1032      spurious negative numbers for precipitation and humidity.  Will cause
1033      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1034    o pkg/ctrl/
1035      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1036        May be enabled via doPackDiag
1037      *  introduce z-scaling of
1038         + gradient (doZscalePack) and
1039         + control (doZscaleUnpack)
1040    o pkg/mdsio/
1041      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1042      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1043    
1044    checkpoint57b_post
1045    o simplify options in diagnostics_fill arguments (remove weird combinations)
1046    o fix MNC coordinate variables so that they now contain per-face index
1047      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1048      general, EXCH2 grids are only aligned to a "local" coordinate system
1049    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1050    o Implement instantaneous output within pkg diagnostics:
1051      setting a negative frequency in data.diagnostics produces
1052     "snap-shot" output (as opposed to time-average if freq > 0)
1053    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1054      NOTE: change ptracer diagnostics name: use 2 characters to work with
1055            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1056    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1057      becomes the coordinate variable for the 'T' dimension
1058    o add CF-style coordinate variables to MNC
1059      - just a first cut:  numbers are meaningless on the cubesphere and
1060        missing along the T axis but otherwise it works!
1061    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1062    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1063    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1064      this is based directly on what the model compute, so that the content of
1065      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1066    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1067    o clean up build options files for SunOS, in particular
1068      - remove -traditional from xmakedepend
1069      - change -xarch=v9 to -xarch=native for f77
1070      - restore use of make (not gmake)
1071      - add CC=gcc if using g77
1072    o changes per discussion of AM, JMC, & EH3 today:
1073      - move redundant "grid" variables out of "state" -- in preparation of
1074        creating proper CF-style coordinate variables and in recognition
1075        that any/all grid variables can be easily copied (eg. w/NCO) from
1076        the grid files into any of the other NetCDF files
1077      - *always* output grid variables with MDSIO (this will eventually be
1078        changed)
1079      - output MNC grid file if useMNC is true
1080    o every instance of _END_MASTER() has been found and replaced with
1081      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1082      preprocessors
1083    o re-arrange diagnostics pkg initialisation:
1084     - allow each package to extend the available diagnostics list
1085     - add some checking and fix small problems (multi-threaded, ...)
1086     - new S/R diagnostics_fill (replace fill_diagnostics):
1087       look through the short list of active diag. (instead of the long list)
1088       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1089    
1090    checkpoint57a_post
1091    o this set of changes restores TAMC compatibility
1092      tested for global_ocean.90x40x15 adjoint on trough
1093      (what a pain)
1094    
1095    checkpoint57a_pre
1096    o some modifs in tools/build_options for sunos
1097    o call ctrl_pack for ctrl at end for optimcycle=0
1098    
1099    checkpoint57
1100    o add horizontal bi-harmonic viscosity for vertical velocity
1101      - new parameter viscA4W (defaults to viscA4)
1102      - affects only non-hydrostatic code
1103      - to be done: no-slip lateral boundary conditions
1104    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1105    o implement Implicit Vertical advection for pTracers
1106    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1107      (implemented also for implicit vertical diffusion & advection)
1108    o OBCS: extend application of tracer open boundary conditions
1109      to a strip beyond the boundary of width Olx/Oly
1110    o add call monitor to TAF set of required calls (flow directives)
1111      and include in natl_box_adjoint
1112    o untangle a few ifdefs related to cost, ctrl, autodiff
1113      untangel a few ALLOW_ECCO_OPTIMIZATION
1114    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1115      (theta2, salt2 in ecco_cost_weights)
1116    
1117    checkpoint56c_post
1118    o OBCS as control variables
1119      - update ctrl_ad_diff.list, obcs_ad_diff.list
1120      - remove balance of obcs controls from default
1121      - fix index bug nobcs in ctrl_init
1122      - fix dummy fields filen in ctrl_pack
1123      - add dummy weights for obcs
1124    o lsopt: comment out fort.94 output
1125    o optim:
1126      - remove unnecessary header files
1127      - adjusted namelists
1128      - add xerbla.F to Makefile
1129    o exf:
1130      - multiple modifications of exf_check_range
1131      - unit change in exf_init_runoff from [m/year] to [m/s]
1132    o mdsio:
1133      - i/o-vector change debugLevel from debLevA to debLevB
1134    
1135    checkpoint56b_post
1136    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1137      is called from DO_THE_MODEL_IO
1138      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1139      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1140      - clean up PTRACERS_WRITE_TIMEAVE a little
1141    o add another verification experiment that tests both the cfc-pkg and
1142      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1143      reactive tendencies treated inline with regular timestepping
1144    o testreport previously did a lousy job of comparing small numbers, so
1145      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1146      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1147      testreport.
1148    o ptracers_monitor: bug fix for MPI
1149    
1150    checkpoint56a_post
1151    o GCHEM: finish reorganizating the package
1152      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1153        (introduces another 3D-array for each passive tracer, but only if
1154        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1155        gchemTendency is not needed because the timestep is done separately)
1156      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1157      - GCHEM is now---more or less cleanly---separate from PTRACERS
1158      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1159        so clear to me how that should be done in a general way.
1160    o CFC: improve formatting of output in CFC_ATMOS
1161    o PTRACERS:
1162      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1163        that ALL experiments with ptracers enable can be checked. This makes
1164        GCHEM_MONITOR obsolete.
1165      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1166        monitorFreq
1167      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1168    o add PTRACERS (PTR0[1-5]) to testreport output
1169    o exf_check_range:
1170      * default changed to .TRUE.
1171      * will check values for niter0 if debLevA, every timestep if debLevB
1172      * STOP in exf_check_range if 'out of range'
1173      * range chosen generous to allow for potential extema
1174      TBD: a version with stricter range
1175           permitted range would be runtime parameters
1176    o GMredi:
1177      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1178      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1179      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1180    o GCHEM:
1181      - move call to GCHEM_FORCING_SEP, so that it is now called before
1182        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1183      - introduced a useGCHEM runtime flag and applied it everywhere.
1184      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1185        this flag is now only visible within GCHEM-pkg routines.
1186      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1187        be replaced by a 3D array that is computed before thermodynamics; for
1188        this, the tracer ID iTracer had to be included into the parameter list
1189        of ptracers_forcing
1190      - set up forward_step to call gchem_forcing, that will replace
1191        gchem_forcing_int in ptracers_forcing
1192      - cleaning up
1193    o small cleaning of exch2: remove files that are also in eesupp/src
1194    
1195    checkpoint56
1196    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1197    o mnc: cleanup "full" files--fixes out-of-memory problem
1198    o ECCO-GODAE
1199      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1200      * fully merged and updated from SIO code
1201        windstress sign change affects
1202        - exf_inscal_[u/v]stress
1203        - sign of xx_tau[u/v] adjustments
1204        - signs in cost_scat
1205      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1206      * natl_box_adjoint updated and compressed
1207      * 2-level checkpoint switch added
1208        (tested in EXP. 1 of natl_box_adjoint)
1209      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1210    o SVD
1211      * first complete, non-hacked version for SVD calculations
1212      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1213        performed via direct access files admtlm_vector.it????
1214        (via ctrl_[un]pack)
1215      * optimcycle is used for ARPACK iteration counter
1216        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1217      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1218        and add linear transforms where necessary
1219      * controls are initial/final SST, SSS (can be extended; need to check
1220        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1221    o mdsio: filename info to both stderr, stdout
1222    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1223      from sign change
1224    
1225    checkpoint55j_post
1226    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1227      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1228    o add consistent build directories and .cvsignore files to verification
1229    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1230    o make all subroutines 30 or less characters in length for certain older
1231      compilers to work (a thorough search only turns up two routines in
1232      pkg/ptracers)
1233    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1234      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1235    
1236    checkpoint55i_post
1237    o change arrays for total vertical diffusivity (2.D if explicit,
1238      3.D if implicit) ; each ptracer uses its own background value.
1239    o added mnc/NetCDF output capability to ocn_compon_interf
1240      - added bits to verification/cpl_aim+ocn so that it can run on
1241        ITRDA and other clusters without the mpirun "-wd" option
1242    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1243      configuration
1244    o give MNC the ability to create additional files rather than
1245      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1246      - the default is just less than 2GB which is a practical limit
1247        on many systems
1248    o Compute the non-local term using either KPP vertical diffusivity (=default)
1249       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1250    
1251    checkpoint55h_post
1252    o add verification test "vermix"
1253    o remove all the *_ioinc flags and replace with the single global
1254      outputTypesInclusive flag
1255    o allow to set a vertical profile of vertical diffusivity for T & S
1256    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1257    o useMNC moved from data.mnc to data.pkg
1258    
1259    checkpoint55g_post
1260    o Renaming carbon AD experiments to comply with testreport conventions
1261    o Updating adjoint of Held-Suarez hs94.1x64x5
1262    o Fixing directives for non-ECCO forward_step, after ECCO directives
1263      have been fixed to avoid recomp. of do_oceanic_phys
1264      Works well for global_ocean.90x40x15,
1265      but recomp. issue remains for carbon
1266    o Updating adjoint output for natl_box_adjoint after
1267      pkg/ecco has been modified (see taga c55d_post)
1268    
1269    checkpoint55f_post
1270    o rename to timeave_init_fixed
1271    
1272    checkpoint55e_post
1273    o some delicate re-shuffle of store directives to avoid one
1274      extra call of do_oceanic_physics
1275      affects ecco_the_main_loop.F, do_oceanic_physics.F
1276      checkpoint_lev1_directives.h
1277    o NB: this may break global_ocean adjoint temporarily,
1278      but it is clear how to fix it. Will do later, need this now.
1279    
1280    checkpoint55d_post
1281    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1282    o ecco_cost_weights is modified to 1x1 runs
1283    o modifs to allow observations to be read in as
1284      single file or yearly files
1285    o enable to read exf forcing fields as either
1286      single file or yearly files (flag useExfYearlyFields)
1287    checkpoint55d_pre
1288    
1289    o switch between 2-level and 3-level checkpointing
1290    o add ability of MNC to write local and "partial" (eg. 2D slices where
1291      the full 3D field is never actually stored) arrays to NetCDF files
1292      with the correct (that is, the complete multi-dimensional) set of
1293      array indicies
1294      - used in mom_vecinv() to write the diagFreq output
1295      - tested (demonstrated) in verification/aim.5l_cs
1296    o further mnc-ification
1297      - add verification/lab_sea to the list with mnc setups
1298      - fix undefined mnc v-names in cd_code
1299      - add kpp to mnc output (both snapshot and timeave)
1300    o non-hydrostatic code
1301      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1302        in calc_gw.F
1303      - defaults to viscAh
1304      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1305        friction or Leith) in non-hydrostatic mode, as long as there is
1306        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1307    o pkg/cost
1308      extend simple cost functions to treat time mean quantities
1309      (T,U,V) via cost_accumulate_state from cost_tile
1310    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1311        be 2 times larger than the minimum size the advection scheme requires.
1312        now get a perfect conservation of salt in advect_cs test-exp (updated)
1313    o GGL90 (Gaspar's TKE mixed layer)
1314      - add horizontal diffusion of TKE, requires exchanges in
1315        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1316        default. In OPA there is no horizontal diffusion of TKE but the
1317        mixing coefficients are computed from a horizontal average of TKE of
1318        6 points or so. I think that diffusion has a little more physical
1319        justification.
1320      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1321        was in vain)
1322      - mask tke-variable in ggl90_init
1323    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1324    o fix biharmonic diffusion on CS-grid.
1325    o more obcs stuff
1326      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1327        for reading boundary values. This routine is called from
1328        obcs_prescribe_read
1329      - updated obcs_check
1330      - changed sponge layer relaxation parameter units for days to seconds
1331      - turned off sponge layer by default
1332      - changed argument list of OBCS_CALC to myTime+deltaTclock
1333      - fixed about 35 bugs in obcs_external_fields_load
1334    
1335    checkpoint55c_post
1336    o obcs stuff
1337      - new runtime flags useOBCSprescribe, useOBCSbalance
1338      - re-arranged obcs_calc
1339      - moved exf_getobcs to obcs_prescibe_read
1340        obcs_prescibe_read is called after ORLANSKI stuff
1341        and independent of it (executable can contain all).
1342      - updated obcs_check
1343      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1344        These may be necessary only if tangential velocities are
1345        prescribed at OB, not sure, needs testing.
1346    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1347      which simplifies the calls and passes the ifc check-bounds test
1348    
1349    checkpoint55b_post
1350    o add a 2D scalar, Z location, exchange_2 routine.
1351    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1352      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1353      affects advect_cs results (for the wrong reason): update output.txt
1354    o use a more standard discretization for biharmonic viscosity ;
1355     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1356      affects results of dome set-up: update output.txt
1357    o fix gad_advection.F (CubedSphere part), back to version 1.23
1358    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1359    
1360    checkpoint55a_post
1361    o merged code to
1362      * prescribe/read time-dependent open boundaries
1363        (works in conjunction with exf, cal)
1364      * sponge layer code for open boundaries
1365      * each boundary N/S/E/W now has its own CPP option
1366        (healthy for the adjoint)
1367    
1368    checkpoint55
1369    o up-to-date adjoint of previous breaks
1370      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1371      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1372      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1373      - carbon: * remove tr1-related adjoint verification
1374                * add ptracer as control variable
1375    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1376      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1377    
1378    checkpoint54f_post
1379    o in verification/carbin/ remove experiment related to
1380      ALLOW_PASSIVE_TRACER (array tr1 etc)
1381      code_ad/ input_ad/ results_ad
1382    
1383    o add two new packages
1384      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1385        + subject to optimization (memory)
1386      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1387        + subject to reordering (many GOTOs in the original code)
1388        + so far opps is called for every (i,j) point, and then operates in
1389          the vertical; one may want to reorder the scheme in order operate in
1390          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1391          fields)
1392    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1393      - all verification tests compile and run with linux_ia32_g77
1394      - defaults are compatible with current input files--nothing
1395        should change if you were not previously using MNC
1396      - MNC output has been added in numerous places (eg. timeave)
1397        but there are still a few writes not yet do-able with MNC
1398        (this is in progress)
1399      - flags now allow for either/or/both use of MDSIO and MNC and
1400        documentation will soon follow
1401      - numerous small formatting cleanups for ProTeX
1402    o add version info (via BUILD_INFO.h) to MNC and stdout
1403    
1404    checkpoint54e_post
1405    o add two new packages
1406      - pp81 (Packanowski and Philander, 1981), Richardson number and
1407        stratification dependent mixing
1408      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1409      - these scheme operate in a similar manner as KPP (without ghat, of
1410        course), however there is only one diffusivity that is used for both
1411        temperature and salinity (and passive tracers)ç
1412    o add offline package
1413    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1414      provided by Stephanie Dutkiewicz
1415    o genmake2: add ability to search for C compilers and cleanup test output
1416      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1417    
1418    checkpoint54d_post
1419    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1420    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1421      leading to additional shift by 5 days each year of integration
1422       (i.e. leading to considerable offset over the years)
1423    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1424    o start with no AB and no initial filtering (staggerTimeStep):
1425      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1426    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1427      (external loading & cpl import/export stay in forward_step.F)
1428    o update coupling interface to work with new staggerTimeStep
1429    o change MDSIO ptracers_pickup.
1430    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1431    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1432    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1433    
1434    checkpoint54c_post
1435    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1436      this affects (truncation error) output.txt of test-exp:
1437       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1438    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1439    o change Qnet to always be the net heat flux, (+upward).
1440      affects (truncation error) output of natl_box exp.: updated
1441    o define the max number of passive tracers in PTRACERS_SIZE.h
1442    o start to test mnc routinely in exp0
1443    o add sea-ice loading (sIceLoad) as a new forcing field.
1444    
1445    checkpoint54b_post
1446    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1447       impressive on Altix and Opteron systems)
1448    o diagnostics can now write NetCDF files through the mnc package
1449    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1450    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1451    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1452      affects (truncation error) output of lab_sea & natl_box exp.: updated
1453    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1454    
1455    checkpoint54a_post
1456    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1457    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1458    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1459    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1460      + internal_wave (shift in writing cg2d_ini_res)
1461    checkpoint54a_pre
1462    
1463    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1464      - modified verification/lab_sea and natl_box_adjoint accordingly
1465    
1466    checkpoint54
1467    checkpoint53g_post
1468    o prepare splitting of thermodynamics: store convect.counter in common block
1469    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1470      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1471    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1472    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1473    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1474    o restore adjointability
1475    
1476    checkpoint53f_post
1477    o modifications that affect AIM experiment results (update output.txt):
1478      - no advection of S at top interface Nr (pkg/generic_advdiff)
1479      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1480    o AIM pkg:
1481      - include stability function into surf.Flux derivative relative to Tsurf
1482      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1483    
1484    checkpoint53e_post
1485    o merged cylindrical coord configuration
1486    o added rotating_tank experiment
1487    checkpoint53e_pre
1488    
1489    checkpoint53d_post
1490    o faulks upgraded: re-generate output.txt that have changed:
1491       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1492    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1493    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1494    o added Sadourny discretization of Coriolis
1495      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1496      - re-enabled use of omega3 (useAbsVorticity)
1497    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1498      vector-invariant equations
1499      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1500    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1501      hopefully without new bugs
1502      - still to do: biharmonic friction for non-hydrostatic w
1503    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1504    o regenerated output for global_ocean_ebm (using -ieee)
1505    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1506      of mom_common/
1507      - simple re-arrangement of instructions within computing loop
1508    checkpoint53d_pre
1509    
1510    checkpoint53c_post
1511    o new version of coupler for AIM+thSIce and Ocean models
1512     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1513     - land: change Evaporation of snow
1514     - aim with thSIce: fix bug in snow-precip.
1515    o changes to calc_gw.F
1516     - bug fix for w^2 term near the bottom boundary
1517     - (hopefully) improve the lateral slip boundary condtions for use with
1518        partial/looped cells
1519      - because the bug fix changes two verification experiments anyway (exp5
1520        and plume on slope), change the lateral boundary condition from half slip
1521        to the value of no_slip_sides
1522    o ebm package wasnt quite up to the parallel task. Fixed that.
1523    o Adjoint of EBM package + verification
1524      * TLM OK
1525      * ADM not sufficient accuracy yet (needs further testing)
1526    
1527    checkpoint53b_post
1528    o Commiting new energy balance model to repository
1529      * package is pkg/ebm
1530      * verif. is verification/global_ocean_ebm
1531      * references are in ebm_driver.F
1532    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1533    C        Global thermohaline circulation. Part I:
1534    C        Sensitivity to atmospheric moisture transport.
1535    C        J. Climate 12(1), 71-82
1536    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1537    C        Global thermohaline circulation. Part II:
1538    C        Sensitivity with interactive transport.
1539    C        J. Climate 12(1), 83-91
1540    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1541    C        Destabilization of the thermohaline circulation
1542    C        by atmospheric eddy transports.
1543    C        J. Climate 7(12), 1870-1882
1544    o Will need long integration testing.
1545    checkpoint53b_pre
1546    
1547    o created pkg/mom_common in preparation for variable viscosity code
1548    o renamed and split ini_mnc_io
1549    o pkg/land: only liquid water can diffuse or run-off
1550    o AIM using land: soil wetness availability account for snow
1551    o added printMapIncludesZeros to EEPARMS namelist
1552    
1553    checkpoint53a_post
1554    o restore TAMC compatiility for exf_constants.h
1555      (no usage of _d in .h)
1556    o Additional storing in KPP in an attempt to fix
1557      TAMC problem with adjoint of KPP code.
1558      (no success...)
1559      Identical code works fine with TAF.
1560    o Fixed verification/natl_box_adjoint experiments.
1561      Initial conditions for Experiments 4 and 5 are now
1562      set to "SEAICE_initialHEFF=0", which is more reasonable,
1563      and hence gives results closer to that of Experiment 2.
1564      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1565    
1566    checkpoint53
1567    o stable checkpoint with up to date adjoint
1568      TLM tests only run for 1st grdchk at the moment. Its unclear if
1569      this is a code problem or a problem with resetting code for g_
1570      variables that is being autogenerated wrong.
1571      Otherwise:
1572       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1573       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1574         are both still in chaos following their security messes.
1575    
1576    checkpoint52n_post
1577    o various build (mostly genmake2) changes including:
1578      - ability to build/run more easily within Cygwin and MacOS X
1579      - more complicated Makefiles with a stronger dependence on Gnu Make
1580    o pkg/seaice modifications
1581      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1582        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1583        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1584      - changed proxy for geostrophic velocity and updated
1585        verification/lab_sea/results/* accordingly
1586      - removed ADI dynamic solver from pkg/seaice
1587      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1588        they caused a segmentation fault under certain circumstances
1589      - removed unused field WATR
1590    o bug fix in exf-package:
1591      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1592         now reflect that.
1593    o small fixes in the cal-package:
1594      - set reference date to first of January for the 'model'-calendar
1595      - failing of cal_CheckDate in cal_FullDate now actually results in a
1596        warning
1597    o small modifications in exf-package to increase flexibility:
1598      - change climtempfreeze from a constant to a runtime parameter that
1599        is specified in data.exf_clim (default = -1.9)
1600      - introduce runtime parameter windstressmax (default = 2.0) that is
1601        specified in data.exf
1602    o fix in pkg/thsice:
1603      - update Evap (Tsf changes) to be consistent with Latent heat flux
1604      - maintain snow precipitation unchanged (even if Tsf >=0).
1605     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1606    
1607    checkpoint52m_post
1608    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1609      this does not change any of the results, because myIter=0 in swfrac always
1610      lead to jwtype=2 (the default anyway), but the call makes little sense
1611      as a default
1612    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1613    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1614      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1615    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1616    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1617    o extending useSingleCpuIO option to work with new exch2 I/O format
1618      - old-style, missing-tile I/O is still accessible by defining CPP
1619        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1620    o monitor package can write to NetCDF files and/or STDOUT
1621    o fix re-definition bug in MNC_GRID_INIT_ALL()
1622    o doc/api_reference added
1623      - a framework for building an API Reference Manual using all
1624        the "protex" comments embedded in the code
1625      - see pkg/generic_advdiff, pkg/mnc for examples
1626    o MNC:
1627      - make myThid the last argument for all subroutines
1628      - new default for the grid files: NO halos
1629      - add useMNC and other run-time flags
1630      - separate per-file-group handling of the unlimited dimension
1631      - early initialization of MNC w/ flags read at the eeboot stage
1632        and lookup tables set in initialize_fixed
1633      - write all MNC output to a freshly-created directory
1634    o thermodynamics sea-ice (thsice) is now tested with testreport.
1635    o test exp. advect_cs: use the standard cs32 grid ; update output.
1636    o Added functionality to grdchk:
1637      pick global i,j,k position (or nearest wet) where to perform check.
1638    
1639    checkpoint52l_post
1640    o new land formulation:
1641      a) use ground enthalpy as prognostic variable to ensure exact
1642         energy conservation.
1643      b) account for water temperature and for latent heat of freezing
1644         in all processes (rain, run-off, ground storage)
1645      c) compute surface and ground temperature implicitly.
1646    o aim_v23 modification for new land model:
1647      a) Treat separately land / ocean / sea-ice surface fluxes
1648         to allow implicit computation of land & sea-ice surface temp.
1649      b) add snow precipitation.
1650    checkpoint52l_pre
1651    
1652    o fix problem (when 1 tile is empty) in min/max monitor.
1653    o fix bug in timeAve (u,vZetatave in common block)
1654    o no restoring terms under ice for pkg/seaice
1655    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1656    o bug fix for pkg/seaice pickups
1657    o change MNC call locations and add coordinate attributes
1658    o mask vorticity at the corner ; affects global_ocean.cs output
1659    o fix ini_curvilinear_grid ; test CS experiments with mpi
1660    o aim.5l_cs: modify sea-ice fraction input file ; update output
1661    o exf: Adding simple range check routine for exf fields after read
1662    
1663    checkpoint52k_post
1664    o removed top-level directory "diags"
1665      - we migrated these functions to pkg/timeave a long time ago
1666    o fixed bug introduced in pkg/monitor
1667    o accuracy ctrlprec = 32 insuffient for gradient checks using
1668      averaged fields (I/O via cost_averages)
1669      -> use ctrl.h in active_file*.F to control I/O precision.
1670    o paramter list of CALL ADTHE_MAIN_LOOP
1671    o added initial do_the_model_io to ecco
1672    o set all ...Freq to zero after cost_final
1673      taveFreq, dumpFreq, pChkptFreq
1674    o MAIN and ECCO differentiability restored
1675    
1676    checkpoint52j_post
1677    o fix nchklev in tamc.h for global_ocean...
1678    o Bringing flow and store directives up-to-date
1679    o Really weird thing!
1680      call do_the_model_io from the_main_loop with parameters
1681      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1682      TAF places a faulty re-call of initialise_varia
1683      after cost_final call which should not be there!
1684    checkpoint52j_pre
1685    
1686    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1687      error messages
1688    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1689    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1690      debug output
1691    o modfied mdsio_writefield.F to handle non-global files under exch2
1692    o update AIM Cubed-Sphere exp (aim.5l_cs):
1693      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1694    o update AIM Equatorial Channel exp:
1695      use standard aim_v23 pkg and change the SST fields to be more realistic.
1696    o globalFile now works with exch2
1697    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1698      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1699    o limit timeave output for hi-res integrations
1700    
1701    checkpoint52i_post
1702    o removed CPP_EEOPTIONS.h from verification/*/code
1703    o updated the tiling for global_ocean_pressure
1704    checkpoint52i_pre
1705    
1706    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1707      the old pkg/aim).
1708    
1709    checkpoint52h_pre
1710    o shortened offending lines in exch2_send_rx?.template
1711    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1712    o genmake2: add build & execute test for NetCDF code
1713    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1714      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1715    o added useSingleCPUIO flag to monitor.F and mon_out.F
1716    o added temporary hack for sea-ice dynamics on the cube:
1717      metric terms are ignored and it is assumed that
1718      there is no sea-ice on cube faces 1, 2, 4, and 5.
1719    
1720    checkpoint52f_post
1721    o added exch2 cube routines to pkg/exch2
1722    o modified hs94.cs-32x32x5 to use it
1723    o added new grid files to hs94.cs-32x32x5
1724    checkpoint52f_pre
1725    
1726    checkpoint52e_post
1727    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1728      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1729    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1730      to work with implicit vertical advection and AB ;
1731    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1732    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1733     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1734    checkpoint52e_pre
1735    
1736    o fix bug in impldiff when Nr=1 or Nr=2.
1737    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1738    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1739    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1740      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1741    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1742    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1743    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1744    
1745    checkpoint52d_post
1746    o re-tiled many expts to allow comparison in multi-processor mode
1747      - updated output accordingly
1748      - changed hs94.128x64x5 to use intial T from file rather than use the
1749        random number generator
1750    o add infrastructure in model routines for fizhi and gridalt packages
1751    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1752    o changes to permit hi-res, cubed-sphere, configuration
1753      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1754      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1755      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1756        of surface winds for the cube
1757      (A verification experiment, based on global_ocean.cs32x15, but with
1758       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1759       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1760       complete with example surface forcing files and matlab scripts to look
1761       at the output and compare it with that of global_ocean.cs32x15.)
1762    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1763       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1764       to conform to the common rule.
1765    o check-in the first version of the coupler + interfaces for multi-components
1766       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1767       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1768       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1769       - ocean and atmos. share the same horizontal grid (no interpolation).
1770       - exchanges between component and coupler is done in forward_step
1771    o new verification experiment, cpl_aim+ocn:
1772       coupled ocean - AIM atmosphere on cs32 grid.
1773    
1774    checkpoint52d_pre
1775    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1776    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1777    
1778    checkpoint52c_post
1779    o Fixing OPTIONS files for use of exf:
1780      - ALLOW_ECCO not needed
1781      - ECCO_CPPOPTIONS.h should not be included from
1782        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1783        as has been the case in the past
1784      - All cal/exf related options are currently set in
1785        single header file. Should remain so until we
1786        agree on a consistent new policy.
1787    o Removed all CPP options for cal package.
1788      cal has no more CPP options.
1789    o modified STOREs in GAD_ADVECTION
1790    o corrected key comp. for passkey
1791    
1792    checkpoint52b_post
1793    o new version: "thsice" of thermodynamic sea-ice pkg:
1794     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1795     - modify fluxes but do not change theta directly;
1796     - light cleaning of bulk_force pkg (still needed with thsice).
1797     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1798       + output_thsice.txt to test thsice & bulk_force pkgs.
1799    o put back grid & coriolis monitor output.
1800    checkpoint52b_pre
1801    
1802    o call "do_the_model_io" at the beginning (=> dump initial state)
1803    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1804    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1805      (need info on NUMBER_OF_PTRACERS)
1806    o missing PTRACERS headers in some routines
1807    o default tamc.h in pkg/autodiff supposed to crash
1808      to ensure proper customization
1809    
1810    checkpoint52a_post
1811    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1812      - moved surfaceTendencyTice from pkg/seaice to main code
1813      - subroutine FREEZE_SURFACE now limits only surface temperature
1814        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1815        => new output.txt for global_ocean.cs32x15 & global_with_exf
1816      - keep the old version of FREEZE for backward compatibility;
1817        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1818      - corresponding modifs for TAF directives
1819    o added surface flux output variables to TIMEAVE_STATVARS
1820    o time-averaged output for pkg/ptracers
1821    o fix problem with ECCO-related divided adjoint
1822      snapshot file was missing some ad-variables,
1823      but no warning issued by TAF
1824    
1825    checkpoint52a_pre
1826    o some bug fixes for #undef REAL4_IS_SLOW
1827    
1828    checkpoint52 = ecco_c52_e35
1829    o after testing adjoints of checkpoint51u_post
1830    
1831    checkpoint51u_post
1832    o this is the post-merge tag of the ecco-branch
1833      (needs another clean checkout and re-testing)
1834    o various natl_box_adjoint configs and results
1835      but no input fields
1836    o obcs adjoint not yet merged!
1837    o adding ECCO global 1x1 and 2x2 degree configs
1838    o updated/extended some store directives for seaice
1839    o pkg/ecco now containes ecco-specific part of cost function
1840    o top level routines the_main_loop, forward_step
1841      supersede those in model/src/
1842      previous input data.cost now in data.ecco
1843      (new namelist ecco_cost_nml)
1844    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1845    
1846    checkpoint51t_post
1847    o this is the pre-merge tag of the ecco-branch
1848    
1849    checkpoint51s_post
1850    o cleanup: removed various obsolete #define-s
1851    o pkg/grdchk
1852      - renamed 'ph-grd 3' to 'grad-res'
1853      - merged from ecco-branch
1854        (remaining bug fixes for obcs gradient checks)
1855      - additional high-precision output for testreport
1856        (grep for 'precision_grdchk_result')
1857    
1858    checkpoint51r_post
1859    o cleaned up or removed CPP_OPTIONS.h files
1860    o updated results for some of the tests to reflect the new
1861      optfiles (-ieee: -O0 instead of -O3)
1862    
1863    checkpoint51q_post
1864    o cd_code:
1865      - moved cd_scheme.F -> cd_code_scheme.F
1866      - separate read_checkpoint from cd_code_ini_vars.F
1867      - separated cd_code part from write_checkpoint
1868      - updated AD_SOURCE, generated .flow
1869      - added CD_CODE_VARS.h to the_main_loop
1870      - Moving cd_code specific store dir.s to pkg/cd_code
1871    o ctrl package totally restructured
1872      - pack/unpack now optional and decoupled from
1873        xx_/adxx_ I/O
1874      - ctrl_pack/unpack cleaned
1875        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1876      - confined inclusion of AD_CONFIG.h to where necessary.
1877    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1878    
1879    checkpoint51p_post
1880    o create initial cd_code package
1881      - WARNING: the initialization of fields within packages
1882        is broken because INI_FIELDS (where READ_CHECKPOINT is
1883        called) is called *before* PACKAGES_INIT_VARIABLES.
1884        This seems to be backwards since
1885        1) its important to initially zero the entire field including
1886           the "halo" region
1887        2) zeroing needs to be done *before* reading pickup info
1888           and the pickup call might or might not happen in any
1889           particular run
1890      - this needs an overhaul for R2
1891    o cleanup verification/*/code/GMREDI_OPTIONS.h
1892    o cleanup testreport
1893    
1894    checkpoint51o_post
1895    o bringing AD-related verif's up to date with genmake2
1896      - carbon/
1897      - global_ocean.90x40x15/
1898      - hs.94.1x64x5/
1899      - (front_relax/ )
1900    o (more) consistent directory structure for AD-related verif.'s
1901    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1902    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1903    o bug fix in find_alpha.F for MDJWF:
1904      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1905        change rho -> rho-rhoConst
1906      - replace call find_rho to find_rhonum
1907    o initialisation of rFlx extended to full array (required by TAF)
1908      and shifted to thermodynamics
1909    o removed PTRACERS.h in ptracers routine
1910    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1911    o Correcting initialisations for fVerU, fVerV.
1912    o helping TAF to recognize dependency on kUp for
1913      fVerU, fVerV
1914    o Replacing delZ by delR in pkg/ctrl/
1915    checkpoint51o_pre
1916    
1917    o undid all of cp51 pending some cleanups and discussion
1918    o added the [#include "AD_CONFIG.h"] statement to all files that need
1919       it for adjoint/tl #defines
1920     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1921     o removed tools/genmake since it no longer works
1922    
1923    checkpoint51n_post
1924    o modifications to make FREEZE flux visible to pkg/kpp
1925      - moved surfaceTendencyTice from pkg/seaice to main code
1926      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1927      - subroutine FREEZE now limits only surface temperature
1928        (this means new output.txt for global_ocean.90x40x15,
1929         global_ocean.cs32x15, and global_with_exf)
1930    o added surface flux output variables to TIMEAVE_STATVARS
1931    
1932    checkpoint51n_pre
1933    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1934    o added [#include "AD_CONFIG.h"] to all files that use the following
1935      defines:
1936      - ALLOW_ADJOINT_RUN
1937      - ALLOW_TANGENTLINEAR_RUN
1938      - ALLOW_ECCO_OPTIMIZATION
1939    
1940    checkpoint51m_post
1941    o incorporating changes to get TAMC/TAF working in genmake2
1942      - added new TAMC/TAF targets to the Makefile
1943      - various cleanups related to package handling
1944      - these changes should have no impact on the forward model
1945    
1946    checkpoint51l_post
1947    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1948     - faster algorithm for cal_addtime.F
1949     - higher precision arithmetic, where needed
1950     - pkg/exf *startdate variables changed from calendar date to
1951       model integration time
1952    
1953    checkpoint51l_pre
1954    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1955    o enable to apply restoring on S & T only in a latitude band.
1956    o update output (external_forcing_surf modif. change truncation errors)
1957       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1958    
1959    checkpoint51k_post
1960    o change default to: useNHMTerms=.FALSE.
1961     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1962       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1963     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1964        exp1, ideal_2D_oce
1965     - change data file of oceanic exp (leave the results unchanged for now)
1966       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1967    o set gravitySign automatically according to the vertical coordinate used
1968      (and change sign: back to "logical" value: +1 when R increases downward)
1969    o added an include barrier to the default CPP_OPTIONS.h and
1970      removed the #include "PACKAGES_CONFIG.h" from it
1971    o fix a bug in mom_fluxform (from chk51j_post)
1972    
1973    checkpoint51j_post
1974    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1975    o adjusted some flow directives (dynamics, thermodynamics)
1976    o added cubed-sphere case to test cost function
1977    o heckpoint_lev?_directives.h now include
1978      pkg-specific directives, whenever those are enabled.
1979    o Moving pkg-specific flow directives to corresponding pkg
1980      Moving pkg-specific differentiation list to corresponding pkg
1981      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1982      ---> conventions are
1983           - pkg_ad.flow
1984           - pkg_ad_diff.list
1985           - pkg_ad_check_lev?_dir.h
1986    
1987    checkpoint51i_post
1988    o merge of the branch-genmake2
1989      - knowingly breaks the older genmake
1990      - automatic generation of all ALLOW_${PKG_NAME} defines
1991      - new testreport supersedes older testscript
1992    o large number of package inclusion and header cleanups
1993    checkpoint51i_pre
1994    
1995    o new output for adjoin of global ocean vector invariant
1996    o fix for checkpoint of thermodynamic seaice and bulk_force
1997    o Steph gchem various cleanups
1998    
1999    checkpoint 51h_pre
2000    o fixed some single quotes
2001    o modify gchem pkg to be more versatile
2002    o modifications to clean up dic pkg
2003    o add pkg/cfc
2004    
2005    checkpoint51g_post
2006    o provide links for ARPACK and ADM*TLM
2007    o start removing verification/vero/
2008    o update AD-related stuff
2009      (in particular some IF-statements in model/src/ routines)
2010    o adding to verification/global_ocean.90x40x15/ adjoint of
2011      vector invariant setup
2012    
2013    checkpoint51f_post
2014    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2015    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2016      of tracer Green's fucntions for ocean inversion project.
2017    
2018    checkpoint51f_pre
2019    o Added on-the-fly spatial interpolation capability
2020        "USE_EXF_INTERPOLATION" to pkg/exf.
2021      - This is a temporary Cartesian-grid hack until
2022        the super-duper ESMF coupler becomes available.
2023      - See verification/global_with_exf/README for usage example.
2024      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2025        flags and modified pkg/seaice accordingly.
2026    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2027        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2028        non-local transport term.
2029    
2030    checkpoint51e_post
2031    o pkg/mom_vecinv:
2032      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2033      - add time-ave diagnostic of vorticity advection.
2034    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2035    o atmospheric geopotential: - include water vapor effect;
2036                                - use p^kappa in p* scaling.
2037    o land pkg: read initial state from files.
2038    o AIM : add stratospheric drag in the upper level
2039    
2040    checkpoint51d_post
2041    o change function ILNBLNK (=> last non-blank char.) to return zero
2042      (instead of the string length) when the string. char is empty
2043    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2044    o modif's to restore TAMC compatibility
2045      - avoid "_d" constructs in PARAMETER declarations
2046      - avoid interrupting lines by comment lines
2047    o Use cluster local disks for purely local I/O
2048      vs. globally visible disks needed for ctrl stuff
2049      (merged from ecco-branch)
2050      - new active_file_loc... and mdsio_..._loc routines
2051      - affected packages: autodiff, ctrl, grdchk, mdsio
2052    
2053    checkpoint51c_post
2054    o introducing integer flag debugLevel
2055      - debLevZero: suppress all output
2056      - debLevA: standard
2057      - debLevB: equivalent to current debugMode=.TRUE.
2058    o introducing pathname variable mdsioLocalDir for mdsio
2059      that can be specified at runtime
2060      (relevant for cluster I/O to local disk)
2061    `
2062    >>>checkpoint51b_post
2063    adjoint of ptracers
2064    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2065    o extended state in checkpoint_lev?, etc.
2066    o alternative ctrl/cost with tr1 or ptracer
2067    o new comlev1_bibj_ptracers
2068    o new ptracers.flow
2069    o made ptracers_forcing same as external_forcing_s
2070    o added verification for adjoint with ptracers
2071      - adm. grdchk fail so far
2072      - tlm. grdchk OK
2073      - checked tapelev/comlev recomputations: OK
2074    <<<checkpoint51b_pre
2075    
2076    checkpoint51a_post
2077    o added code for biogeochemistry package
2078      - new pkgs: dic, gchem
2079      - new subroutine in ptracers
2080    o modify code for biogeo packages
2081      - in model/src and pkg/ptracers
2082    
2083    checkpoint51
2084    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2085      - autodiff, ctrl, exf, grdchk, seaice
2086      kept separate packages
2087      - cost, ecco, obcs
2088    o updating verification/internal_wave, verification/lab_sea
2089      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2090    
2091    checkpoint50i_post
2092    o Preparing next differentiable checkpoint and sync
2093      of MAIN vs. ecco-branch
2094      - 1st step: this one is differentiable
2095      - 2nd step: next(! not this) checkpoint will have updated packages
2096                  from ecco-branch)
2097    
2098    checkpoint50h_post
2099    o new package "land": provide surface BC for AIM.
2100    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2101    o AIM: use true log-P extrapolation for near surface temp (= as in
2102        F.Molteni paper) ; update aim.5l_cs output.
2103    o New variable in PARM03 for more flexible pickups
2104    o somewhat cleaned package initialisation sequence for
2105      ctrl/ cost/ ecco/ in packages_... routines
2106    
2107    checkpoint50g_post
2108    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2109      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2110      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2111        made the default because of faster convergence than ADI
2112    
2113    checkpoint50f_post
2114    o exf totally restructured
2115      - replaced all exf_set_ routines by one generic exf_set_gen.F
2116        and made sure it's still differentiable
2117      - split exf_getffields.F into new exf_bulkformulae.F
2118      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2119      - updated adjoint/makefile and relevant verif. accordingly
2120    
2121    checkpoint50f_pre
2122     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2123          + change Evap over land. (update aim.5l_cs output)
2124     o added missing .cvsignores and made uniform across expts
2125     o changed configuration of tidal_basin_2d expt
2126     o added pkg/debug functions for tracing code in fatal crashes
2127     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2128     o new fn in pkg/monitor to stop model if solution grows too big
2129     o removed lots of single quotes from comments
2130    
2131    checkpoint50e_post
2132    o make KPP work with PTRACERS
2133     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2134       nearly a copy of kpp_transport_s
2135     - there is no analogue to SurfaceTendencyS, so I have to use
2136       gPtr(of the surface layer) instead
2137    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2138    checkpoint50e_pre
2139    
2140    checkpoint50d_post
2141    o change kpp output from multiple-record state files to single-record state
2142      files analogous to write_state.F
2143    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2144      analogous to the cg2d-related output.
2145    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2146      so that writing to internal file fn (with length 512) fails.
2147    checkpoint50d_pre
2148    
2149    checkpoint50c_post
2150    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2151    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2152    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2153    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2154    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2155    
2156    checkpoint50c_pre
2157    Merging from release1_p13:
2158    o bug fix for pkg/seaice dynamic solver
2159    o Added SEAICE_initialHEFF to pkg/seaice
2160    
2161    checkpoint50b_post
2162    o store u*,v* in gU,V instead of in guNm1,gvNm1
2163    o in order to put the momForcing out of the Adams-Bashforth:
2164      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2165      to timestep.F
2166    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2167    o re-generate output for highly sensitive test-exp:
2168       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2169    
2170    checkpoint50b_pre
2171    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2172    o corrected CPP option mismatch in exf_Bulk... functions for case
2173      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2174    
2175    checkpoint50a_post
2176    o Bug fix for merging between c50 and KPP.
2177      ikey was passed from thermodynamics to kpp_calc via
2178      common block rather than being recomputed in kpp_calc,
2179      in contradiction with new key itdkey.
2180      New key ikppkey created, and tamc.h headers updated.
2181    
2182    checkpoint50
2183    - 2nd step of merge with ecco-branch:
2184      merge changes in ecco-branch back into main trunk
2185    - bug fix in find_alpha
2186    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2187    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2188    - merged some sliced AD support routines
2189    
2190    checkpoint49
2191    merged from ecco-branch:
2192    o exf:
2193      - Enable initialisation of forcing fields to constant
2194        (runtime) values.
2195      - in exf_getffields.F
2196        Reduce i-/j-loop to interior domain, discarding overlaps.
2197        That also fixes wrong TAF-key computations for key_1, key_2
2198        with bulf formulae.
2199      - exf_init.F modify #ifdef for exf_init_evap
2200      - exf_getffieldrec.F, ctrl_getrec.F
2201        The following INT-usages are not safe:
2202          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2203          fldcount = int(fldsecs/fldperiod) + 1
2204        and were modified.
2205    o autodiff: checkpoint_lev...
2206      - updated storing for bulk formulae (some arrays were missing)
2207      - added state for seaice package
2208      - synchronized with main branch
2209    o DIVA:
2210      Modif.s in
2211      - the_main_loop.F
2212      - the_model_main.F
2213      and added cost_final_restore.F cost_final_store.F
2214      o With these changes, it is possible to fully separate
2215        the first forward run to compute the cost function (mdthe_main_loop)
2216        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2217        into separate model executions.
2218        This enables better tuning of DIVA to given queue sizes.
2219      o Loss of cost function value in consecutive DIVA runs is
2220        fixed by storing to 'costfinal' file.
2221      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2222        beginning/end of adjoint integration is accounted for.
2223      The current changes apply to TAF-1.4.26.
2224      TAF has one remaining bug, requiring one manual change
2225      (see MITgcm manual).
2226    o cal: synchronized between MAIN and ecco-branch
2227    
2228    checkpoint48i_post
2229    o Changes to restore differentiability of code w.r.t. previous tag
2230      (mostly adding new routines to make list and replacing
2231      pressure by totPhiHyd).
2232    o Updated and merged grdchk package
2233      - has both ADM and TLM checks
2234      - works for single- and multi-proc.
2235      - output cleaned
2236      - worked successfully for parallel DIVA
2237    o genmake:
2238      - Adding -platform=SP4
2239      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2240    o Modif. for DIVA:
2241      ctrl_unpack should not be called in intermediate DIVA interval.
2242      (similar thing would apply for active files such as
2243      tbar, sbar, psbar, which should not be reinitialised;
2244      only relevant for ecco-branch)
2245    
2246    checkpoint48h_post
2247    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2248    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2249    o Added SEAICE_initialHEFF to pkg/seaice
2250    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2251    
2252    checkpoint48g_post
2253    --- EOS:
2254    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2255      store total Potential in totPhyHyd for diagnostics & EOS.
2256    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2257    --- Pressure/geopotential gradient:
2258    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2259    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2260      ( changes results of global_ocean_pressure )
2261    o NLFS + z-coord.: add eta*Rho' contribution.
2262    o accurate phiHyd when using interface-W at the middle between 2 centers
2263     ( changes results of ideal_2D_oce )
2264    o includes r* 2nd term in potential gradient.
2265    
2266    checkpoint48f_post
2267    Merging from release1_p12:
2268    o Modifications for using pkg/exf with pkg/seaice
2269      - improved description of the various forcing configurations
2270      - added basic radiation bulk formulae to pkg/exf
2271      - units/sign fix for evap computation in exf_getffields.F
2272      - updated verification/global_with_exf/results/output.txt
2273    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2274      (SBO) core products, including oceanic mass, center-of-mass,
2275      angular, and bottom pressure (see pkg/sbo/README.sbo).
2276    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2277      to avoid negative values in shallow regions.
2278      - updated verification/natl_box/results/output.txt
2279      - updated verification/lab_sea/results/output.txt
2280    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2281    o Added useSingleCpuIO option (see PARAMS.h).
2282    o Updated useSingleCpuIO option in mdsio_writefield.F to
2283      work with multi-field files, e.g., for single-file pickup.
2284    o pkg/seaice:
2285      - bug fix in growth.F: QNET for no shortwave case
2286      - added HeffFile for specifying initial sea-ice thickness
2287      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2288    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2289      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2290    o pkg/seaice:
2291      - adjoint-friendly modifications
2292      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2293    
2294    checkpoint48e_post
2295    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2296    o dynamics: change definition of computational domain & adapt mom_fluxform
2297      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2298    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2299        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2300        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2301        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2302        inverted_barometer solid-body.cs-32x32x1
2303      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2304    
2305    checkpoint48d_post
2306    o in preparation for r*:
2307     a) use pre-computed gradient of hydrostatic potential:
2308        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2309     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2310        => affects results of glob_oce_pressure (different truncation error)  
2311      update output.txt of ideal_2D_oce & global_ocean_pressure
2312    
2313    checkpoint48d_pre
2314    o in preparation for r*:
2315      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2316      pass the 2 comp. of the grad. as arguments to momentum S/R.
2317      but for the moment, only used if it does not change the results.
2318    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2319    
2320    checkpoint48c_post
2321    Modifications in treatment of initial flux forcing controls
2322    to avoid extra storing of flux fields.
2323    
2324    checkpoint48c_pre
2325    o Added tidal_basin_2d experiment (currently 1D!)
2326    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2327    
2328    checkpoint48b_post
2329    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2330     (modification to pressure gradient not yet implemented)
2331    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2332      (for U & V) that are used for vertical advection of momentum.
2333    
2334    checkpoint48a_post
2335    o In preparation for r*, use temp. array to compute vertical transport
2336       in flux-form momentum pkg. => change results of few test-exp.
2337      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2338                        lab_sea, natl_box & plume_on_slope
2339    
2340    checkpoint48
2341    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2342    
2343    checkpoint47j_post
2344    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2345    o moved adexch from forward_step to addummy_in_stepping
2346    o added exch in ctrl_map_...
2347    o aveFreq.=0. at end of cost_final to avoid overwrite in
2348      reverse checkpointing loop
2349    o Yet more changes in gmredi:
2350      * adgmredi_calc_tensor
2351        avoiding all recomputation of gmredi_slope_limit
2352      * adgmredi_x/y/rtransport
2353        added flag for excessive storing to avoid recomp. of
2354        u/v/rtans, dTdx/y/z
2355        -> this is not really necessary and very memory-consuming
2356      * adgmredi_slope_psi:
2357        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2358      * gmredi_slope_limit
2359        re-activated full calculation of taperfct for case 'ac02'
2360    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2361    
2362    checkpoint47i_post
2363    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2364    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2365      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2366    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2367    o gmredi: fix few bugs.
2368    
2369    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2370    This will be a good checkpoint to plug into the ecco-branch.
2371    o few modif.'s to get latest version adjointed
2372      (mainly kick out code in ini_linear_phisurf)
2373    o modif's to run adjoint with exactConserv
2374    o case GM_BOLUS_ADVEC should be cleaned
2375      S/R gmredi_slope_psi should be cleaned
2376    o verification/carbon now has exactConserv=.TRUE.
2377    
2378    checkpoint47g_post
2379    o time-average AIM output: becomes independent from statvars time-average
2380      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2381    o After TAF bug fix:
2382      Tested adjoint of gmredi package.
2383      Tests were done with checkpoint47 rather than with latest
2384      checkpoint47f_post since the latter is broken for the adjoint
2385      verification/carbon/ contains both ADM and TLM gradient checks.
2386    Here they are, before they get changed/lost/stolen.
2387    Mostly modif.'s to fix numerical sensitivities.
2388    Gradient checks OK for
2389    - GM_taper_scheme:
2390      * clipping
2391      * ac02
2392      * linear
2393      * glw91
2394      * dm95
2395      * ldd97
2396    - GMREDI_OPTIONS:
2397      * GM_VISBECK_VARIABLE_K
2398      * GM_NON_UNITY_DIAGONAL
2399      * GM_EXTRA_DIAGONAL
2400      * GM_BOLUS_ADVEC
2401    in conjunction with data.gmredi parameters to be checked in
2402    in a few minutes under verification/carbon/code/
2403    
2404    checkpoint47f_post
2405    Merging from release1_p10:
2406    o modifications for using pkg/exf with pkg/seaice
2407      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2408        and SEAICE_EXTERNAL_FLUXES
2409      - pkg/exf CPP options EXF_READ_EVAP and
2410        EXF_NO_BULK_COMPUTATIONS
2411      - usage examples are Experiments 8 and 9 in
2412        verification/lab_sea/README
2413      - verification/lab_sea default experiment now uses
2414        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2415    
2416    checkpoint47e_post
2417    o created a tag prior to creating a branch
2418    
2419    checkpoint47d_post
2420    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2421      at the bottom boundary had an erroneous half slip boundary condition
2422    o added bottom drag and no slip boundary condition capabilities to
2423      oceanic pressure coordinates code
2424    o added new verification experiment global_ocean_pressure, this experiment is
2425      also described in the tutorial section of the manual
2426    checkpoint47d_pre
2427    
2428    checkpoint47c_post
2429    o Added a verification experiment for a global cubed-sphere ocean run
2430      -  verification/global_ocean.cubed32x32x30
2431      -  uses pkg/therm_seaice and pkg/bulk_forcing
2432    
2433    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2434    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2435      when using P-coordinate; only implemented for atmospheric config.
2436    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2437      NOTES: requires option NONLIN_FRSURF to be "#define".
2438    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2439    
2440    checkpoint47b_post
2441    Merging from release1_p9:
2442    o pkg/seaice
2443      - removed GOTO's and added taf directives
2444      - double precision constants to reduce the g77 (Linux)
2445        to F77 (SGI) differences reported in release1_p8
2446    o tools/genmake
2447      - added SGI options
2448    o verification/testscript
2449      - updated to that of checkpoint47a_post
2450    o verification/global_ocean.90x40x15/input/eedata
2451      - modified for SGI f77 compatibility
2452    o verification/lab_sea
2453      - added description of sea-ice model
2454      - added missing matlab routines
2455      - added test of thermodynamics parallelization
2456    
2457    checkpoint47a_post
2458    o new pkg: aim_v23
2459     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2460       for now, keep the same surface forcing as before.
2461     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2462     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2463     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2464    o add diagnostic of surface correction term in monitor output
2465    
2466    o bulk_force and therm_seaice
2467    - Two packages:  bulk_force (Bulk forcing)
2468      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2469    - Earlier integration from Stephaine Dutkiewicz
2470      and Patrick Heimbach.
2471    - Two ifdef statements for compile time,
2472       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2473    
2474    checkpoint47
2475    differentiable version of checkpoint46n_post
2476    o bug fix in quasihydrostaticterms
2477    o * "clean" adjoint code (in terms of extensive recomputations)
2478        can now be obtained for all GMREDI options (i.e. for
2479        - GM_VISBECK_VARIABLE_K
2480        - GM_NON_UNITY_DIAGONAL
2481        - GM_EXTRA_DIAGONAL
2482        - GM_BOLUS_ADVEC )
2483      * However, wrong gradient check problem remains unsolved.
2484      * New CPP options have been introduced for different
2485        tapering schemes
2486    o external_fields_load now part of differentiation list
2487    o pressure needs multiple storing;
2488      would be nice to have store_pressure at beginning or
2489      end of forward_step, e.g. by having phiHyd global (5-dim.)
2490      (NB: pressure is needed for certain cases in find_rho,
2491      which is also invoked through convective_adjustment).
2492    o recomputations in find_rho for cases
2493     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2494    o #define ATMOSPHERIC_LOADING should be differentiable
2495    o ini_forcing shifted to begining of initialise_varia
2496    o Incorporating QNVS line search routines into MITgcm
2497      (this is separate code, and therefore not under pkg)
2498      lsopt/, optim/
2499    o Updated verification/carbon/
2500      - #define GM_VISBECK_VARIABLE_K
2501      - GM_taper_scheme    = 'ldd97'    
2502    
2503    checkpoint46n_post
2504    Merging from release1_p8:
2505    o verification/natl_box:
2506      updating new external_fields_load routine
2507    o New package: pkg/seaice
2508      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2509      The sea-ice code is based on Hibler (1979-1980).
2510      Two sea-ice dynamic solvers, ADI and LSR, are included.
2511      In addition to computing prognostic sea-ice variables and diagnosing
2512      the forcing/external data fields that drive the ocean model,
2513      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2514      The implied surface heat flux is then stored in variable
2515      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2516      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2517      non-local transport term.  Because this call precedes model
2518      thermodynamics, temperature under sea-ice may not be "exactly" at
2519      the freezing point by the time theta is dumped or time-averaged.
2520      N.B.: fairly large differences in accuracy occur across
2521            different platforms/compilers; comparison between
2522            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2523            generated output gives:
2524       T           S           U           V
2525      C D M    c        m  s        m  s        m  s        m  s
2526      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2527      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2528      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2529    
2530      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2531    o GAD:
2532      - generated new common blocks to account for call of
2533        same gad routines with differing traceridentities
2534        (needed to modify tracerIdentity indices in GAD.h)
2535      - generated separate common blocks for case useCubedSphereExchange
2536        (Department of Futurology)
2537      - parameter lists to gmredi_?transport: added tracerIdentity
2538      - added new key indices to tamc.h
2539    o external_fields_load:
2540      - added this routine to TAF list
2541      - needed to make some common blocks global and additional storing
2542        along the same lines as exf package (checkpoint_lev?_directives.h)
2543    o exf:
2544      updated external forcing package
2545      - bug fixes carried over from ecco-branch
2546        (missing OBCS_OPTIONS.h in two routines)
2547      - enable easy to use "no forcing".
2548      - added exf I/O for atmospheric loading
2549      - added exf I/O for runoff data
2550      - transfered scaling between exf <-> MITgcm to exf namelist
2551    o Adding new verification experiment global_with_exf.
2552      This verification experiment is almost identical to the
2553      global_ocean.90x40x15 experiment, except that it uses
2554      the exf (and cal) package instead of the
2555      external_fields_load routine (cf README file).
2556    
2557    checkpoint46m_post
2558    o modified testscript to return -- when there are no lines of "%MON" output
2559    o added new flag "quasiHydrostatic" for QH mode
2560      and new routine quasihydrostaticterms()
2561    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2562      New routine: mom_u_coriolis_nh()
2563    o fixed sign of non-hydrostatic metric terms in u and v equations.
2564      Depend on correct sign of gravitySign.
2565    o added work.pc* to .cvsignore in aim directories using ifc
2566    o introduced flag for controllin non-hydrostatic metric terms
2567    o removed gravitySign from PARM04
2568    o switched to g77/ifc from pgf77 in aim experiments
2569    
2570    checkpoint46l_post
2571    o made convective adjustment work with pressure coordinates:
2572     - changed the direction of k-loop in convective_adjustment.F for the
2573       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2574     - adjusted the reference pressure k-index in convective_adjustment.F
2575     - adjusted the convection condition in convect.F (in analogy to
2576       calc_ivdc.F)
2577     - convective_adjustment no longer computes anything on the halos
2578     - removed the warnings about negative salinity from find_rho.F and
2579       find_alpha.F; instead the new routine look_for_neg_salinity, called
2580       at the beginning of find_rho, find_alpha, and find_beta, does a
2581       check of the entire slice, if CPP-option
2582       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2583    checkpoint46l_pre
2584    
2585    checkpoint46k_post
2586    o fixed the verification/global_ocean.90x40x15 experiment:
2587     - new bathymetry (the world according to A., JMC, and M.)
2588     - new initial fields and forcing fields (*.bin files)
2589     - new POLY3.COEFFS (for the next release one should switch to a full
2590       equation of state: JMD95P or MDJWF)
2591     - fixed several errors and redundancies in the data file
2592     - experiment uses looped cells
2593     - added matlab directory with diagnostic scripts for plotting of output
2594    
2595    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2596     - read AIM physics parameters from a file (data.aimphys)
2597     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2598    
2599    checkpoint46j_post
2600    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2601    o move wVel computation at the end of the time step, in S/R integr_continuity
2602    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2603    o update timeave pkg for wVel diagnostic.
2604    checkpoint46j_pre
2605    
2606    checkpoint46i_post
2607    o Clean up AIM package (and keep the results unchanged):
2608      include CPP_OPTION and use IMPLICT NONE in all routines ;
2609      declare all the variables _RL ; use _d 0 for all numerical constants.
2610      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2611    
2612    checkpoint46h_post
2613    o cleaned up the use of rhoNil and rhoConst.
2614      - rhoNil should only appear in the LINEAR equation of state, everywhere
2615        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2616        and the dynamical equations are all divided by rhoConst
2617    o introduced new parameter rhoConstFresh, a reference density of fresh
2618      water, to remove the fresh water flux's dependence on rhoNil. The default
2619      value is 999.8 kg/m^3
2620    o cleanup up external_forcing.F and external_forcing_surf.F
2621      - can now be used by both OCEANIC and OCEANICP
2622    checkpoint46h_pre
2623    
2624     Added code to convert surface volume flux (fresh water) into
2625     a mass flux when using P coordinates in the ocean (OCEANICP).
2626     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2627    
2628    checkpoint46g_post
2629    o Include a new diagnostic variable phiHydLow for the ocean model
2630      - in z-coordinates, it is the bottom pressure anomaly
2631      - in p-coordinates, it is the sea surface elevation
2632      - in both cases, these variable have global drift, reflecting the mass
2633        drift in z-coordinates and the volume drift in p-coordinates
2634      - included time averaging for phiHydLow, be aware of the drift!
2635    o depth-dependent computation of Bo_surf for pressure coordinates
2636      in the ocean (buoyancyRelation='OCEANICP')
2637      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2638        Theta, Salinity, and Pressure in the parameter list. This routine is
2639        presently contained in find_rho.F. This routine does not give the
2640        correct density for 'POLY3', which would be a z-dependent reference
2641        density.
2642    o cleaned up find_rho
2643      - removed obsolete 'eqn' from the parameter list.
2644    o added two new verification experiments: gop and goz
2645      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2646    checkpoint46g_pre
2647    
2648    checkpoint46f_post
2649    o Enable tangent linear (forward mode) gradient checks:
2650      - extended active file handling to g_... files
2651      - added TANGENT_SIMULATION to theSimulationMode
2652      - extended grdchk package accordingly
2653    o added tangent linear setup in verification/carbon/code_ftl
2654    o added adjoint setup in verification/front_relax/code_ad
2655    
2656    checkpoint46e_post
2657    o Added new equation of state -> MDJWF
2658      - EOS of McDougall et al., 2002, JAOT, submitted
2659      - caveat: the equation of state is only valid for a smaller (more
2660        realistic?) range of values than JMD95P/Z and UNESCO
2661      - added masks to the calculation of pressure in store_pressure
2662      - added more check values for density in check_eos (ini_eos.F), some of
2663        the old check values are out of the range of the MDJWF-eos, so don't
2664        expect perfect matches for those
2665    checkpoint46e_pre
2666    
2667    checkpoint46d_post
2668    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2669      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2670      case of pressure coordinates. eosType='JMD95Z' in
2671      combination with buoyancyRelation='OCEANICP' now causes an error.
2672    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2673      in find_alpha/beta.
2674    checkpoint46d_pre
2675    
2676    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2677      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2678    
2679    checkpoint46c_post
2680    o Changes necessary for ocean in p-coordinates
2681     -  Added new buoyancy relation = 'OCEANICP'
2682     -  Added new parameters = gravitySign (this used to be contained inside
2683        the factor dRdZ which I added when we first switched to R coordinates).
2684     X GM/Redi is not compatible (yet)
2685     X bottom drag and no-slip need to be debugged.
2686    checkpoint46c_pre
2687    
2688    checkpoint46b_post
2689    o Added new equation of state -> JMD95Z and JMD95P
2690      - EOS of Jackett and McDougall, 1995, JAOT
2691      - moved all EOS parameters into EOS.h
2692      - new routines ini_eos.F, store_pressure.F
2693    o Added UNESCO EOS, but not recommended because it requires
2694      in-situ temperature (see JMD95)
2695    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2696      unesco.f to be used with POLY3
2697    checkpoint46b_pre
2698    
2699    checkpoint46a_post
2700    o Added (atmospheric) pressure loading
2701      - new field in FFIELDS.h, etc...
2702      - new cpp flag ATMOSPHERIC_LOADING
2703    o Changed hFacC to _hFacC in calc_phi_hyd.F
2704    o Added SHORTWAVE_HEATING to some files for consistency
2705    checkpoint46a_pre
2706    
2707    checkpoint46
2708    further merges from release1_p5
2709    o new ctrl package
2710      - adopted from ECCO environment to enable optimization
2711      - added Eliassen Palm fluxes to controls
2712    o added Eliassen Palm flux controls to gradient check package
2713    o cost package
2714      - Compatible with new ctrl package
2715      - added Eliassen Palm cost hooks
2716      - modif's of existing cost functions
2717    o Adjoint-related bug fixes in kpp:
2718      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2719      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2720    o autodiff package
2721      - flow directives:
2722        + new for S/R do_the_model_io
2723        + enhanced for S/R checkpoint
2724        + new gmredi.flow
2725      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2726        disable adcommon.h/g_common.h by default.
2727      - fixed problem for adjoint of global_max
2728    o modified verification/carbon/
2729    o New setup for adjoint of global_ocean
2730    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2731    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2732    o incorporated hooks for sponge layer code (external_forcing.F)
2733    
2734    checkpoint45d_post
2735    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2736  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2737    (affects plume_on_slope "cg2d" output)    (affects plume_on_slope "cg2d" output)
2738    o add new parameter deltaTfreesurf for free-surface time stepping
2739    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2740  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2741  o change phiMin in exp1 (to agree with documentation)  o change phiMin in exp1 (to agree with documentation)
2742  o add new flags:  o add new flags:

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