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revision 1.29 by adcroft, Thu Jul 13 14:22:58 2000 UTC revision 1.641 by heimbach, Fri Mar 24 23:01:39 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o fix mnc-pickup/restart for ptracers
8    o new package prifiles:
9      code to compute profile-based cost by Gael Forget
10      (modifs in ecco, ctrl, autodiff)
11    o Benign bug fix in initialization (spotted by M. Mazloff) of
12      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
13    
14    checkpoint58c_post
15    o adjoint: finish NLFS adjoint and provide reference output in
16      verification/global_ocean.90x40x15/results_ad_nlfs
17    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
18      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
19      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
20      with SEAICE_CGRID defined.
21    o move calendarDumps from "data" to "data.cal" and clean-up the code
22      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
23    o add useEXF & useCAL flags (for now, set in hard-coded way)
24    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
25      (were missing in NH mode, and wrong in quasihydrostatic mode).
26      waiting for Chris updated version of calc_gw to add those CALLs.
27    o fix bug in quasihydrostatic S/R ;
28      add a test for this option: global_ocean.90x40x15.qshyd
29    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
30      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
31    o add on/off flag useOffLine for package OFFLINE
32    o seaice:
33      - modify advection so that it works also on the C-grid
34      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
35        problem in multi-tile runs with C-grid
36      - add flags for clipping ice velocities and/or masking solver forcing
37      - fix drag (ocean on ice) formulation and a bug that caused noise in the
38        C-grid solver
39      - added a few comments to seaice_diffusion.F
40      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
41        are now exclusive)
42      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
43        required re-ordering the code a little:
44       + make DAIRN global variable (defined in SEAICE)
45       + move computation of the viscosities eta and zeta into a new separate
46         routine (because I need to recompute them in seaice_ocean_stress.F)
47    
48    checkpoint58b_post
49    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
50      update output.txt of exp. aim.5l_cs.thSI
51    o various mnc cleanups and improvements:
52      + shrink lookup tables by factor of ~4
53      + better error reporting when running out of lookup space
54      + able to handle longer path/file names (up to 500 chars)
55    o adjoint:
56      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
57      - TBD: "hidden" mom_vecinv recomp. in dynamics
58    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
59     (allow to differentiate between forcing components using new integer flags:
60      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
61     and add new flag to put Dissipation tendency out of Adams-Bashforth.
62    o ecco
63      - enable trend removal from SSH anomaly obs.
64    o adjoint
65      - a fix for PmEpR when #undef EXACT_CONSERV
66      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
67      - try to fix "hidden" recomp. in forward_step for NLFS
68        (NLFS seems broken sometimes after I checked it in)
69    o seaice:
70     - add c-grid version of the dynamic solver:
71       + three new routines that are the c-grid substitute lsr, dynsolver
72         and ostres
73       + put a few fields that were local to dynsolver into global common
74         blocks, so that I can move the computation of stresses etc into
75         seaice_lsr (saves coding but may break the adjoint).
76     - replace more hardwired parameters by runtime parameters
77     - add ice masks that mask the rhs of the implicit solvers where there
78       is no ice (commented out in seaice_dynsolver, because i am not sure
79       if this works properly), eventually this should replace the clipping
80       of ice velocities in seaice_dynsolver to +/-40cm/s.
81    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
82      include it only where its needed
83    o move balancing of fluxes before the call of external_forcing_surf
84    o seaice:
85      - correct units of turning angles (now they are really in degrees)
86      - move computation of GWATX/Y out of main routine into dynsolver
87      - initialize GWATX/Y in seaice_init
88    o Apply mask on Fresh-Water flux (needed for SSH forcing).
89      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
90    o seaice: add runtime flags for turning angles (default to zero)
91    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
92      and trend from exf forcing and ctrl control adjustments
93    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
94      (since checkpoint57x_post)
95    o change the default rotation period to 86164.s = the Earth rotation
96    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
97      and based on a reference stratification. Tested within hs94.cs-32x32x5.
98    o seaice advection: add code for choosing between the default (2nd order
99      central differences) and multiDim advection schemes provided by
100      pkg/generic_advdiff
101    o seaice:
102      - removed all references to SEAICE_GRID.h fields from
103        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
104        (cubed-sphere configuration will change a little)
105      - grid computations in seaice_init are obsolete now.
106      - cleaned up code a little so that is easier to read (hopefully).
107      - added new (better?) discretizations of default advection and diffusion
108        (turn on with SEAICEuseFluxForm)
109      - replace 1 in 3d global fields by kSurface in growth.F
110      
111    checkpoint58a_post
112    o seaice:
113      - bug fix in advect.F
114    o shelfice:
115      - separate shelfice load anomaly from pload (breaks with time
116        dependent forcing), => introduce constant field shelficeLoadAnomaly.
117        Its default is 0., but it may be computed more cleverly from (unknown)
118        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
119        done offline. A good approximation of the pressure load anomaly is
120        necessary to avoid large initial adjustment processes underneath
121        deep-reaching shelfice.
122      - small fix in ISOMIP shelfice_thermodynamics
123      - add more sophisticated thermodynamics of Hellmer (1989), this is
124        now the default
125      - give a few constants more intuitive names
126    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
127      if bulk formulae are used in long integration (especially EmPmR). Turn
128      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
129      if balancePrintMean, the imbalance that is substracted is printed to
130      STDOUT.
131    o fix bug (typo) in obcs_apply_eta.F
132    o add a new package shelfice which enables us to model the circulation
133      underneath shelf-ice with draughts of hundreds of meters.
134     - works
135     - to do: + include improved thermodynamics
136              + check whether kSurfC (from model/inc/SURFACE.h) can be used
137                instead of new field kTopC
138              + can we use topoFile, Ro_surf and existing code in ini_depth.F
139                instead of new field R_shelfIce and new code in ini_depth.F
140                and ini_mask_etc.F?
141              + adjust vertical mixing schemes?
142    o seaice pkg:
143     - add a cpp-flag to include a simple formula for a salinity dependent
144       freezing point of sea water at the surface
145     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
146       meridional stresses are now different (and hopefully correct)
147    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
148       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
149       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
150    o pkg/diagnostics: add options and parameters for regional-statistics
151       diagnostics ; define regions by reading a region-mask from a file
152       (might add other options later)
153    o pkg/bulk_force:
154     - add option and parameters to use AIM surface-flux formulae.
155     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
156       others forcing fields (defined in PARM05, parameter file "data") are loaded
157       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
158     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
159     - use the right EXCH call for uwind,vwind (to work on CS-grid).
160     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
161       and parameters (note: calcWindStress replaces .NOT.readwindstress).
162     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
163    
164    checkpoint58
165    o add "--embed-source" option to genmake2 which, when the supporting
166      tools can be compiled (as determined by genmake2) will turn on the
167      embed_files package which then embeds the entire MITgcm source code
168      (*.[fFhc] + Makefile) used for the build within the executable
169      - requested by CNH but off by default
170      - adds a paltry <9MB to the mitgcmuv executable in most cases
171      - only writes the output when useEMBEDSRC in eedata is true
172    o clean up 3-dim. relaxation codes:
173      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
174      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
175      * Thanks to Tom Haine for testing!
176    
177    checkpoint57z_post
178    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
179      affects output (@ truncation level) of exp. plume_on_slope ; updated.
180    o fix the pickup behavior for obcs in combination with ptracers
181    o fix a bug in ptracers_external_fields_load
182    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
183      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
184    o transfered surface NH pressure to eta field (if exactConserv).
185    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
186         and update lab_sea output.txt file.
187    o completing 3-dim. relaxation code: additional term
188         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
189      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
190      * At compile time, in "EXF_OPTIONS.h" set
191          #define  ALLOW_CLIMTEMP_RELAXATION
192          #define  ALLOW_CLIMSALT_RELAXATION
193      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
194          tauThetaClimRelax3Dim = 15552000.0,
195          tauSaltClimRelax3Dim  = 15552000.0,
196      * 3 cases:
197          1) Use a constant-in-time 3-dim. field
198          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
199          3) Real-time relax. to time-evolving prescribed field
200    o Adding Laplacian-type smoothness constraint on
201      initial and boundary (forcing) controls (ic, bc)
202      * enable at compile-time via
203        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
204      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
205      * Absolute scale somewhat unclear so far
206      * no area weighting was included since no other cost term does so far
207    
208    checkpoint57y_post
209    First step for a NLFS adjoint
210    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
211    o new init. routines for calc_r_star, calc_surf_dr
212    o still need to deal with ini_masks_etc
213    o testreport seemed happy
214    checkpoint57y_pre
215    
216    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
217    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
218    o add new offset feature to offline pkg (plus minor cleanup)
219    o cfc fixes for final year of integration
220    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
221      be in GCHEM_OPTIONS).
222    
223    checkpoint57x_post
224    o fix testreport Pb in multiple test experiment.
225    o cleanup our namelist syntax in verification:
226      - make it more F95 standards compliant (some work still needed)
227      - allows the vast majority of our tests to work with gfortran
228    o Non-Hydrostatic:
229     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
230     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
231    o Allow to apply AB on T,S rather than on AB(gT,gS):
232     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
233     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
234       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
235     - need a "clever" read_pickup to restart from the other AB formulation
236    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
237    o remove some unused variables (reduces number of compiler warnings)
238    o adjoint
239      * Disable useVariableViscosity for adjoint for time being
240        (there are a number of extensive recomputations)
241      * Initialize certain variables needed for adjoint
242    
243    checkpoint57w_post
244    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
245                 fix the singleCpuIO RS version of MDSWRITEFIELD
246       and add a WARNING if using globalFiles=T with multi-processors.
247    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
248      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
249    o tracer advection scheme:
250      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
251       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
252       was not very convenient).
253      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
254       (further tests needed for the implicit DST & Flux-Limiter schemes).
255    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
256      and sRef for convenience, handy, when you want to initialize
257      ptracers in a large domain with a constant non-zero value. Also,
258      untangle ptracers_init.F a little.
259    
260    checkpoint57v_post
261    o change dome exp. to use variable viscosity in side-drag terms.
262    o remove all the files from the cfc_offline test since they are now
263      incorporated into tutorial_cfc_offline which has been producing
264      identical results for a few days of testing
265    o add new parameter: sideDragFactor to enable half-slip-side BC
266      and change side-drag S/R to use viscosity from mom_calc_visc
267      (can switch back by setting sideDragFactor=0.); affects results at
268      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
269       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
270    o vorticity & strain are now computed without masking, to account for
271      no-slip-side BC in variable viscosity calculation ; mask is applied
272      anyway later on, before computing advection/coriolis terms.
273    o modify exp4 to test new obcs support for reading from external files
274      and for passive tracers
275    o fix behavior of ptracers_monitor when monitor output is written to a
276      netcdf-file; still not independent of monitor.F (writes in the same
277      file).
278    o change default value of tRef (put a uniform, meaningful value for ocean
279      & atmos) and initialize sRef (was missing, as Martin mentioned).
280    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
281      to be proportional to enstrophy dissipation length.  Thus,
282       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
283      This is now consistent with Smagorinsky and with the manual.
284    
285    checkpoint57u_post
286    o OBCS and PTRACERS: add open boundary support for passive tracers
287      - either use homogenous (pseudo) v.Neumann conditions or prescribe
288        OB-values from file; this is not different from the way theta and salinity
289        are treated
290      - however, Orlanski-radiation conditions are not supported, and the model
291        will stop if you use pTracers and Orlanski at the same time.
292      - beefed up the rountine obcs_external_fields_load: now only those open
293        boundary values are overwritten with values from files for which there
294        are really files, otherwise the OB-fields remain untouched. This makes
295        it possible to use different OBs at different ends of the domain (as
296        with EXF)
297    o reduce number of exch calls in shap_filt (s2).
298    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
299      truncation level) 4/5 MLAdjust test results (11&12 digits match).
300    
301    checkpoint57t_post
302    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
303    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
304      same truncation, independent of the face number: affects affects several
305      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
306    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
307      note that biharmonic viscosity + no-slip was not tested in any experiment.
308    o fix bug in non-linear free-surf side-drag ; generate new output for
309      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
310    o make mnc honor the writeBinaryPrec flag for most kinds of output
311    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
312    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
313      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
314    o add brackets in multi-terms sum to get same truncation, independent of
315      the face number (manage to get exactly same value of gU,gV at the cs-edge)
316      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
317    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
318      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
319      a maximum grid-scale Reynolds number.  Also, changes all length calculations
320      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
321      Suggested values of viscosity parameters found in mom_calc_visc.
322      Many new viscosity diagnostics available.
323    
324    checkpoint57s_post
325    o Add clearing-house for viscosity calculations, mom_calc_visc and
326      correct numerous bugs in LeithD and Smagorinsky discretizations.  
327      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
328      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
329      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
330      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
331      The Strain-Tension form is now called with useStrainTensonVisc=.true.
332      ViscAhStrain and viscAhTension are now retired.
333    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
334    o In response to JMC's bug report, genmake2 now ignores any soft-links
335      that it finds in the *current* directory when searching for files.
336      Soft-links found in any other source directories will still work as
337      they did before.
338    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
339      a C routine to unlimit the stack size
340    o mnc-ify pkg/aim snapshot vars
341    o mnc-ify pkg/land as requested by Daniel
342    o various changes to mnc including:
343      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
344      - output can now be grouped so that all files within a group
345          change the ITER portion of their names in lock-step together
346      - can now read ("global") PER-FACE (in addition to PER-TILE) files
347          and works with both EXCH1 and EXCH2 (but needs more testing)
348      - writing works for all verification test cases w/ g77 on Linux
349    
350    checkpoint57r_post
351    o make MNC variable initialization happen earlier
352    o add diagnostics for (almost) each term of the momentum Eq.
353    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
354    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
355    o remove MINIMAL_TAVE_OUTPUT option ;
356      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
357    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
358      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
359    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
360    o add time-dependent SST, SSS control
361    o cost terms in ecco/ modularized (new cost_generic.F)
362    o cost_averages routines are modularized (new cost_averagesgeneric.F)
363    o new infrastructure for seaice model vs. obs misfits in seaice/
364      * driver from the_main_loop.F is seaice_cost_driver.F
365      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
366      * gradient check in Exp. 6a of natl_box_adjoint/
367    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
368      (see README file)
369    
370    checkpoint57q_post
371    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
372    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
373      - bug was reported by Jean-Michel and Ian Fenty
374    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
375      update exp. cpl_aim+ocn output.
376    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
377      Needed for high-res. runs with large global files
378      to be able to limit tapelev size
379    o Changed some tests for adjoint:
380      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
381      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
382      * global_ocean.90x40x15/ back to default 3-level checkpointing
383    o Modifications to enable scripted COMMON to MODULE conversion
384      * verification/OpenAD/code/ has necessary scripts and description;
385      * converts, compiles and runs successfully;
386    
387    checkpoint57p_post
388    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
389    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
390      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
391    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
392    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
393      (was already the case for dissipation with mom_vecinv,
394       and also the case for grad.PhiHyd when staggered-timeStep)
395      This will allow to put dissipation out-off the AB time-stepping.
396     Unfortunately, affects truncation error. Update output of exp. that "fails"
397      (cg2d matching number) and leave the others for later: front_relax(10),
398      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
399      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
400    
401    checkpoint57o_post
402    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
403      (2) its ready to be documented during the 20050801 DocFest
404    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
405      for ideal_2D_oce and lab_sea on linux_ia32_g77
406    o set to #undef CTRL_SET_OLD_MAXCVARS_30
407      in global1x1_tot/code_seaice_adj to access indices 32, 33
408      (worth another tag)
409    
410    checkpoint57n_post
411    o adding precip control xx_precip 32
412    o adding swflux control xx_swflux 33
413    o Replacing 10 forcing penalty cost routines by 1 generic.
414    o Implementing partitioning in time-mean and variable adjustment
415      for atmos. state.
416    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
417    o in natl_box_adjoint:
418      * updated exp 1 to 10
419        (but does not have time-mean vs. variable split results yet)
420    o updated global1x1/*_seaice_adj/
421      to incorporate latest changes
422    o enable useSingleCpuIO for mdsio vector routines
423      (applies in particular to tapelev I/O)
424    o removed inefficient K-loop in all active_file*control*.F
425    
426    checkpoint57m_post
427    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
428      and advect_cs (use EXCH-2 and standard cs-32 grid files).
429    o pkg/exch2: filling of face-corner halo regions is optional
430      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
431    
432    checkpoint57l_post
433     tag before updating tutorials (pre-release-2)
434    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
435       for output and interpolation of input fields onto model grid)
436    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
437       Affects results of exp. rotating_tank ; update output.txt.
438    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
439          and taking the square quantity and/or using a fraction-weight field.
440    o fix aim_diagnostics_init.F mate numbers.
441    o add mnc output capability to diagnostics/diagstat and update
442      our cvsignore files for the ACSII output generated
443    
444    checkpoint57k_post
445    o lab_sea now uses diagnostics package and provides a suite of
446      new EXF diagnostics output.
447    
448    checkpoint57j_post
449    o exf
450      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
451        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
452        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
453      * extended diagnostics output
454        - now includes all EXF variables
455        - hs, hl moved to common block
456        - separate S/R for diagnostics, called after ctrl vector is added
457        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
458        - EXFqnet contains true Qnet (i.e. includes qsw)
459      * updated verif. lab_sea, global_with_exf
460      * Rearranging hflux (exf_mapfields -> exf_getforcing)
461        to ensure that diagnostics sees a true EXFqnet
462    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
463    o diagnostics pkg: change pointers so that 1 diagnostic can be used
464      several times with different frequencies.
465    o mnc-ify the thsice package as requested by Daniel Enderton
466      - the monitor--MNC output needs work
467      - many attributes need to be added (most are currently blank)
468    o mnc-ify theaim_v23 package as requested by Daniel Enderton
469      - many attributes need to be added (most are currently blank)
470    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
471    o add Sadourny like discretization to the 4th.O vorticity advection scheme
472    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
473      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
474         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
475    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
476     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
477    
478    checkpoint57i_post
479    o Diagnostics package was changed: diagnostic allocation is now deactivated
480      by setting an empty file name in the namelist (used to be by setting 0 frequency)
481    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
482      add 1rst Order upwind vertical Shear.
483    o add a quick fix for A/B checkpointing in OFFLINE mode
484    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
485      end-run around the C/Fortran linking horror in eesup/src/timers.F
486    o added pkg/runclock: allows user to terminate run based on wall clock
487    o added non-hydrostatic scaling parameter: nh_am2
488    o pkg/my82: futile attempt to make results compiler-independent by adding
489      some "_d 0", etc. no effect.
490    o for mnc output, fill the 'T' coordinate var with myTime and create a
491      separate 'iter' variable for iteration count
492    o pkg/diagnostics:
493      add new capability: output of Global/Regional & per-level statistics ;
494      tested against monitor output (including land & thSIce) on various exp.
495    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
496    
497    checkpoint57h_done
498      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
499      data.diagnostics, data.gchem, data.ptracers) is done.
500    
501    o pkg/diagnostics: prepare for Global/Regional statistics.
502      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
503    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
504      and rename it: DIFFERENT_MULTIPLE
505    
506    checkpoint57h_post
507    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
508    o pkg/diagnostics: change output frequency, now in seconds (instead
509      of Nb of iterations). This requires to change data.diagnostics.
510    checkpoint57h_pre
511    
512    o in mnc, let the user create the output dir if both mnc_outdir_date
513      and mnc_outdir_num are false
514    o add fflags() to pkg/diagnostics which allows one to specify, on a
515      per-file basis, the file precision [default behavior is unchanged]
516    o added diagnostics to pkg/kpp, including computation of mixed layer
517      depth based on a temperature/density criterion
518    o updated verification/natl_box to test the new pkg/kpp diagnostics
519    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
520    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
521    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
522      not mnc -- this mistake was found by JMC and is now corrected
523    
524    checkpoint57g_post
525    o add Adams-Bashforth 3rd Order time stepping:
526      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
527      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
528    checkpoint57g_pre
529    
530    o make lambda[Theta,Salt]ClimRelax spatially varying
531      (default remains spatially uniform constant based on tau)
532    o added new control variables
533      * init. uVel, vVel, etanN
534      * lambda[Theta,Salt]ClimRelax
535    o separate masks used for ctrl_pack/unpack 'from write_grid' output
536      (suggested by G. Forget)
537    
538    checkpoint57f_post
539    o add parameter "baseTime" = model base time = time at iteration zero
540      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
541      account for baseTime shift
542    o move Coriolis arrays from PARAMS.h to GRID.h
543    checkpoint57f_pre
544    
545    o mnc-ifying the seaice package
546    o introduced an alternative length scale calculation for use in the limiting
547      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
548    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
549    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
550      as well as grad(vort3).  Made it compatible with both approximate form
551      for the cubed sphere and full form of these gradients.  Added flag
552      useFullLeith to select between approximate and full form.  
553    o add "d0" in getcon.F to reduce differences between compilers/platforms
554      update output.txt of exp. fizhi-gridalt-hs
555    o change port_rand funtion to allow to set the seed.
556    o fix obscure MNC bug involving conversion between reals and integers
557      - it caused no problems with certain (eg. gcc, ifc) compilers but the
558        new version is now more standards-compliant
559    o adjoint-related modifications
560      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
561      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
562      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
563    
564    checkpoint57e_post
565    o Adding eddy stress controls a la Ferreira et al.
566    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
567    
568    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
569      update output.txt of exp. fizhi-gridalt-hs
570    o add more "Z" dimensions and associated coordinate vars to MNC
571    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
572    o parameter calendarDumps: when set, approximate months (30-31 days) and years
573      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
574      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
575      months and years.  Requires pkg/cal.
576    o diagnostics: add pickup functionality
577      - off by default for backwards compatibility
578      - current version only uses MDSIO -- MNC will be added
579    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
580    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
581    
582    checkpoint57d_post
583    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
584    o modify verification/ideal_2D_oce so that it tests the creation of mnc
585      output from the diagnostics package
586    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
587    o make genmake2 more portable by using ".$FS" instead of ".f" for more
588      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
589    o add coordinate variables to the MNC output from the diagnostics package
590    o change MNC-flags default value: true when useMNC=TRUE
591    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
592      the ability (off by default) to read the grid information using MNC
593    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
594    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
595    o do snap-shot diagnostics at the middle of the time-interval (instead of
596      at the end).
597    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
598      new test for AIM with thSIce + slab-ocean
599    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
600    o move state variable diagnostics to the beginning of the time step ;
601      (note: still needs some work specially for snap-shot diagnostics)
602      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
603    
604    checkpoint57c_post
605    o Change testing option (-ieee) to get closer agreement between g77 & ifort
606    o generate new output.txt files on faulks with g77 & the new -ieee option
607    checkpoint57c_pre
608    
609    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
610      update output.txt of exp. global_ocean.90x40x15
611    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
612      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
613    o add saltFlux(+File) forcing capability with periodicExternalForcing
614    o allow to use pkg diagnostics for GM-Redi & ThSIce output
615    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
616    o improvements for the MNC output from DIAGNOSTICS:
617      - correct handling of the unlimitied dimension
618      - all dims now have associated coordinate variables
619      - variables located at U, V, and Corner ("Z") points are now written
620        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
621        *all* data points are output
622    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
623    o added pkg/seaice/seaice_monitor.F
624    o mdsio_readfield.F can now read files visible only to master MPI process.
625    o pkg/seaice: some test code for ice-modified ocean stress
626    o exf_getffields interpolation defaults to bilinear for all scalar forcing
627      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
628      spurious negative numbers for precipitation and humidity.  Will cause
629      some small numerical differences for integrations using pkg/exf/exf_interp.F.
630    o pkg/ctrl/
631      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
632        May be enabled via doPackDiag
633      *  introduce z-scaling of
634         + gradient (doZscalePack) and
635         + control (doZscaleUnpack)
636    o pkg/mdsio/
637      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
638      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
639    
640    checkpoint57b_post
641    o simplify options in diagnostics_fill arguments (remove weird combinations)
642    o fix MNC coordinate variables so that they now contain per-face index
643      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
644      general, EXCH2 grids are only aligned to a "local" coordinate system
645    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
646    o Implement instantaneous output within pkg diagnostics:
647      setting a negative frequency in data.diagnostics produces
648     "snap-shot" output (as opposed to time-average if freq > 0)
649    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
650      NOTE: change ptracer diagnostics name: use 2 characters to work with
651            more than 9 tracers. Add also diagnostics of advect & diffus flux.
652    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
653      becomes the coordinate variable for the 'T' dimension
654    o add CF-style coordinate variables to MNC
655      - just a first cut:  numbers are meaningless on the cubesphere and
656        missing along the T axis but otherwise it works!
657    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
658    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
659    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
660      this is based directly on what the model compute, so that the content of
661      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
662    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
663    o clean up build options files for SunOS, in particular
664      - remove -traditional from xmakedepend
665      - change -xarch=v9 to -xarch=native for f77
666      - restore use of make (not gmake)
667      - add CC=gcc if using g77
668    o changes per discussion of AM, JMC, & EH3 today:
669      - move redundant "grid" variables out of "state" -- in preparation of
670        creating proper CF-style coordinate variables and in recognition
671        that any/all grid variables can be easily copied (eg. w/NCO) from
672        the grid files into any of the other NetCDF files
673      - *always* output grid variables with MDSIO (this will eventually be
674        changed)
675      - output MNC grid file if useMNC is true
676    o every instance of _END_MASTER() has been found and replaced with
677      _END_MASTER( myThid ) in order to satisfy certain picky Sun
678      preprocessors
679    o re-arrange diagnostics pkg initialisation:
680     - allow each package to extend the available diagnostics list
681     - add some checking and fix small problems (multi-threaded, ...)
682     - new S/R diagnostics_fill (replace fill_diagnostics):
683       look through the short list of active diag. (instead of the long list)
684       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
685    
686    checkpoint57a_post
687    o this set of changes restores TAMC compatibility
688      tested for global_ocean.90x40x15 adjoint on trough
689      (what a pain)
690    
691    checkpoint57a_pre
692    o some modifs in tools/build_options for sunos
693    o call ctrl_pack for ctrl at end for optimcycle=0
694    
695    checkpoint57
696    o add horizontal bi-harmonic viscosity for vertical velocity
697      - new parameter viscA4W (defaults to viscA4)
698      - affects only non-hydrostatic code
699      - to be done: no-slip lateral boundary conditions
700    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
701    o implement Implicit Vertical advection for pTracers
702    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
703      (implemented also for implicit vertical diffusion & advection)
704    o OBCS: extend application of tracer open boundary conditions
705      to a strip beyond the boundary of width Olx/Oly
706    o add call monitor to TAF set of required calls (flow directives)
707      and include in natl_box_adjoint
708    o untangle a few ifdefs related to cost, ctrl, autodiff
709      untangel a few ALLOW_ECCO_OPTIMIZATION
710    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
711      (theta2, salt2 in ecco_cost_weights)
712    
713    checkpoint56c_post
714    o OBCS as control variables
715      - update ctrl_ad_diff.list, obcs_ad_diff.list
716      - remove balance of obcs controls from default
717      - fix index bug nobcs in ctrl_init
718      - fix dummy fields filen in ctrl_pack
719      - add dummy weights for obcs
720    o lsopt: comment out fort.94 output
721    o optim:
722      - remove unnecessary header files
723      - adjusted namelists
724      - add xerbla.F to Makefile
725    o exf:
726      - multiple modifications of exf_check_range
727      - unit change in exf_init_runoff from [m/year] to [m/s]
728    o mdsio:
729      - i/o-vector change debugLevel from debLevA to debLevB
730    
731    checkpoint56b_post
732    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
733      is called from DO_THE_MODEL_IO
734      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
735      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
736      - clean up PTRACERS_WRITE_TIMEAVE a little
737    o add another verification experiment that tests both the cfc-pkg and
738      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
739      reactive tendencies treated inline with regular timestepping
740    o testreport previously did a lousy job of comparing small numbers, so
741      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
742      implemented in the little c-progam tmp_cmpnum.c which is embedded in
743      testreport.
744    o ptracers_monitor: bug fix for MPI
745    
746    checkpoint56a_post
747    o GCHEM: finish reorganizating the package
748      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
749        (introduces another 3D-array for each passive tracer, but only if
750        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
751        gchemTendency is not needed because the timestep is done separately)
752      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
753      - GCHEM is now---more or less cleanly---separate from PTRACERS
754      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
755        so clear to me how that should be done in a general way.
756    o CFC: improve formatting of output in CFC_ATMOS
757    o PTRACERS:
758      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
759        that ALL experiments with ptracers enable can be checked. This makes
760        GCHEM_MONITOR obsolete.
761      - include a runtime parameter PTRACERS_monitorFreq that defaults to
762        monitorFreq
763      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
764    o add PTRACERS (PTR0[1-5]) to testreport output
765    o exf_check_range:
766      * default changed to .TRUE.
767      * will check values for niter0 if debLevA, every timestep if debLevB
768      * STOP in exf_check_range if 'out of range'
769      * range chosen generous to allow for potential extema
770      TBD: a version with stricter range
771           permitted range would be runtime parameters
772    o GMredi:
773      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
774      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
775      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
776    o GCHEM:
777      - move call to GCHEM_FORCING_SEP, so that it is now called before
778        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
779      - introduced a useGCHEM runtime flag and applied it everywhere.
780      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
781        this flag is now only visible within GCHEM-pkg routines.
782      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
783        be replaced by a 3D array that is computed before thermodynamics; for
784        this, the tracer ID iTracer had to be included into the parameter list
785        of ptracers_forcing
786      - set up forward_step to call gchem_forcing, that will replace
787        gchem_forcing_int in ptracers_forcing
788      - cleaning up
789    o small cleaning of exch2: remove files that are also in eesupp/src
790    
791    checkpoint56
792    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
793    o mnc: cleanup "full" files--fixes out-of-memory problem
794    o ECCO-GODAE
795      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
796      * fully merged and updated from SIO code
797        windstress sign change affects
798        - exf_inscal_[u/v]stress
799        - sign of xx_tau[u/v] adjustments
800        - signs in cost_scat
801      * ctrl_get_gen: avoid update of tau[u/v] for first few days
802      * natl_box_adjoint updated and compressed
803      * 2-level checkpoint switch added
804        (tested in EXP. 1 of natl_box_adjoint)
805      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
806    o SVD
807      * first complete, non-hacked version for SVD calculations
808      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
809        performed via direct access files admtlm_vector.it????
810        (via ctrl_[un]pack)
811      * optimcycle is used for ARPACK iteration counter
812        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
813      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
814        and add linear transforms where necessary
815      * controls are initial/final SST, SSS (can be extended; need to check
816        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
817    o mdsio: filename info to both stderr, stdout
818    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
819      from sign change
820    
821    checkpoint55j_post
822    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
823      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
824    o add consistent build directories and .cvsignore files to verification
825    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
826    o make all subroutines 30 or less characters in length for certain older
827      compilers to work (a thorough search only turns up two routines in
828      pkg/ptracers)
829    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
830      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
831    
832    checkpoint55i_post
833    o change arrays for total vertical diffusivity (2.D if explicit,
834      3.D if implicit) ; each ptracer uses its own background value.
835    o added mnc/NetCDF output capability to ocn_compon_interf
836      - added bits to verification/cpl_aim+ocn so that it can run on
837        ITRDA and other clusters without the mpirun "-wd" option
838    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
839      configuration
840    o give MNC the ability to create additional files rather than
841      exceeding a specified file size limit "MNC_MAX_FILESIZE"
842      - the default is just less than 2GB which is a practical limit
843        on many systems
844    o Compute the non-local term using either KPP vertical diffusivity (=default)
845       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
846    
847    checkpoint55h_post
848    o add verification test "vermix"
849    o remove all the *_ioinc flags and replace with the single global
850      outputTypesInclusive flag
851    o allow to set a vertical profile of vertical diffusivity for T & S
852    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
853    o useMNC moved from data.mnc to data.pkg
854    
855    checkpoint55g_post
856    o Renaming carbon AD experiments to comply with testreport conventions
857    o Updating adjoint of Held-Suarez hs94.1x64x5
858    o Fixing directives for non-ECCO forward_step, after ECCO directives
859      have been fixed to avoid recomp. of do_oceanic_phys
860      Works well for global_ocean.90x40x15,
861      but recomp. issue remains for carbon
862    o Updating adjoint output for natl_box_adjoint after
863      pkg/ecco has been modified (see taga c55d_post)
864    
865    checkpoint55f_post
866    o rename to timeave_init_fixed
867    
868    checkpoint55e_post
869    o some delicate re-shuffle of store directives to avoid one
870      extra call of do_oceanic_physics
871      affects ecco_the_main_loop.F, do_oceanic_physics.F
872      checkpoint_lev1_directives.h
873    o NB: this may break global_ocean adjoint temporarily,
874      but it is clear how to fix it. Will do later, need this now.
875    
876    checkpoint55d_post
877    o ECCO specific cost function terms (up-to-date with 1x1 runs)
878    o ecco_cost_weights is modified to 1x1 runs
879    o modifs to allow observations to be read in as
880      single file or yearly files
881    o enable to read exf forcing fields as either
882      single file or yearly files (flag useExfYearlyFields)
883    checkpoint55d_pre
884    
885    o switch between 2-level and 3-level checkpointing
886    o add ability of MNC to write local and "partial" (eg. 2D slices where
887      the full 3D field is never actually stored) arrays to NetCDF files
888      with the correct (that is, the complete multi-dimensional) set of
889      array indicies
890      - used in mom_vecinv() to write the diagFreq output
891      - tested (demonstrated) in verification/aim.5l_cs
892    o further mnc-ification
893      - add verification/lab_sea to the list with mnc setups
894      - fix undefined mnc v-names in cd_code
895      - add kpp to mnc output (both snapshot and timeave)
896    o non-hydrostatic code
897      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
898        in calc_gw.F
899      - defaults to viscAh
900      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
901        friction or Leith) in non-hydrostatic mode, as long as there is
902        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
903    o pkg/cost
904      extend simple cost functions to treat time mean quantities
905      (T,U,V) via cost_accumulate_state from cost_tile
906    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
907        be 2 times larger than the minimum size the advection scheme requires.
908        now get a perfect conservation of salt in advect_cs test-exp (updated)
909    o GGL90 (Gaspar's TKE mixed layer)
910      - add horizontal diffusion of TKE, requires exchanges in
911        do_fields_blocking_exchanges, horizontal diffusivity is zero by
912        default. In OPA there is no horizontal diffusion of TKE but the
913        mixing coefficients are computed from a horizontal average of TKE of
914        6 points or so. I think that diffusion has a little more physical
915        justification.
916      - clean up ggl90_calc in the hope of reducing memory usage (this hope
917        was in vain)
918      - mask tke-variable in ggl90_init
919    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
920    o fix biharmonic diffusion on CS-grid.
921    o more obcs stuff
922      - added obcs_external_fields_load as an alternative to the EXF-pkg option
923        for reading boundary values. This routine is called from
924        obcs_prescribe_read
925      - updated obcs_check
926      - changed sponge layer relaxation parameter units for days to seconds
927      - turned off sponge layer by default
928      - changed argument list of OBCS_CALC to myTime+deltaTclock
929      - fixed about 35 bugs in obcs_external_fields_load
930    
931    checkpoint55c_post
932    o obcs stuff
933      - new runtime flags useOBCSprescribe, useOBCSbalance
934      - re-arranged obcs_calc
935      - moved exf_getobcs to obcs_prescibe_read
936        obcs_prescibe_read is called after ORLANSKI stuff
937        and independent of it (executable can contain all).
938      - updated obcs_check
939      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
940        These may be necessary only if tangential velocities are
941        prescribed at OB, not sure, needs testing.
942    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
943      which simplifies the calls and passes the ifc check-bounds test
944    
945    checkpoint55b_post
946    o add a 2D scalar, Z location, exchange_2 routine.
947    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
948      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
949      affects advect_cs results (for the wrong reason): update output.txt
950    o use a more standard discretization for biharmonic viscosity ;
951     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
952      affects results of dome set-up: update output.txt
953    o fix gad_advection.F (CubedSphere part), back to version 1.23
954    o fix bug in mom_vi_del2uv.F (CubedSphere part).
955    
956    checkpoint55a_post
957    o merged code to
958      * prescribe/read time-dependent open boundaries
959        (works in conjunction with exf, cal)
960      * sponge layer code for open boundaries
961      * each boundary N/S/E/W now has its own CPP option
962        (healthy for the adjoint)
963    
964    checkpoint55
965    o up-to-date adjoint of previous breaks
966      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
967      - global_ocean_ebm: adjoint still needs fix (TLM ok)
968      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
969      - carbon: * remove tr1-related adjoint verification
970                * add ptracer as control variable
971    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
972      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
973    
974    checkpoint54f_post
975    o in verification/carbin/ remove experiment related to
976      ALLOW_PASSIVE_TRACER (array tr1 etc)
977      code_ad/ input_ad/ results_ad
978    
979    o add two new packages
980      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
981        + subject to optimization (memory)
982      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
983        + subject to reordering (many GOTOs in the original code)
984        + so far opps is called for every (i,j) point, and then operates in
985          the vertical; one may want to reorder the scheme in order operate in
986          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
987          fields)
988    o overhaul of IO so that we now have flags for MDSIO and/or MNC
989      - all verification tests compile and run with linux_ia32_g77
990      - defaults are compatible with current input files--nothing
991        should change if you were not previously using MNC
992      - MNC output has been added in numerous places (eg. timeave)
993        but there are still a few writes not yet do-able with MNC
994        (this is in progress)
995      - flags now allow for either/or/both use of MDSIO and MNC and
996        documentation will soon follow
997      - numerous small formatting cleanups for ProTeX
998    o add version info (via BUILD_INFO.h) to MNC and stdout
999    
1000    checkpoint54e_post
1001    o add two new packages
1002      - pp81 (Packanowski and Philander, 1981), Richardson number and
1003        stratification dependent mixing
1004      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1005      - these scheme operate in a similar manner as KPP (without ghat, of
1006        course), however there is only one diffusivity that is used for both
1007        temperature and salinity (and passive tracers)ç
1008    o add offline package
1009    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1010      provided by Stephanie Dutkiewicz
1011    o genmake2: add ability to search for C compilers and cleanup test output
1012      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1013    
1014    checkpoint54d_post
1015    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1016    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1017      leading to additional shift by 5 days each year of integration
1018       (i.e. leading to considerable offset over the years)
1019    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1020    o start with no AB and no initial filtering (staggerTimeStep):
1021      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1022    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1023      (external loading & cpl import/export stay in forward_step.F)
1024    o update coupling interface to work with new staggerTimeStep
1025    o change MDSIO ptracers_pickup.
1026    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1027    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1028    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1029    
1030    checkpoint54c_post
1031    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1032      this affects (truncation error) output.txt of test-exp:
1033       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1034    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1035    o change Qnet to always be the net heat flux, (+upward).
1036      affects (truncation error) output of natl_box exp.: updated
1037    o define the max number of passive tracers in PTRACERS_SIZE.h
1038    o start to test mnc routinely in exp0
1039    o add sea-ice loading (sIceLoad) as a new forcing field.
1040    
1041    checkpoint54b_post
1042    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1043       impressive on Altix and Opteron systems)
1044    o diagnostics can now write NetCDF files through the mnc package
1045    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1046    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1047    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1048      affects (truncation error) output of lab_sea & natl_box exp.: updated
1049    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1050    
1051    checkpoint54a_post
1052    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1053    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1054    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1055    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1056      + internal_wave (shift in writing cg2d_ini_res)
1057    checkpoint54a_pre
1058    
1059    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1060      - modified verification/lab_sea and natl_box_adjoint accordingly
1061    
1062    checkpoint54
1063    checkpoint53g_post
1064    o prepare splitting of thermodynamics: store convect.counter in common block
1065    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1066      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1067    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1068    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1069    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1070    o restore adjointability
1071    
1072    checkpoint53f_post
1073    o modifications that affect AIM experiment results (update output.txt):
1074      - no advection of S at top interface Nr (pkg/generic_advdiff)
1075      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1076    o AIM pkg:
1077      - include stability function into surf.Flux derivative relative to Tsurf
1078      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1079    
1080    checkpoint53e_post
1081    o merged cylindrical coord configuration
1082    o added rotating_tank experiment
1083    checkpoint53e_pre
1084    
1085    checkpoint53d_post
1086    o faulks upgraded: re-generate output.txt that have changed:
1087       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1088    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1089    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1090    o added Sadourny discretization of Coriolis
1091      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1092      - re-enabled use of omega3 (useAbsVorticity)
1093    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1094      vector-invariant equations
1095      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1096    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1097      hopefully without new bugs
1098      - still to do: biharmonic friction for non-hydrostatic w
1099    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1100    o regenerated output for global_ocean_ebm (using -ieee)
1101    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1102      of mom_common/
1103      - simple re-arrangement of instructions within computing loop
1104    checkpoint53d_pre
1105    
1106    checkpoint53c_post
1107    o new version of coupler for AIM+thSIce and Ocean models
1108     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1109     - land: change Evaporation of snow
1110     - aim with thSIce: fix bug in snow-precip.
1111    o changes to calc_gw.F
1112     - bug fix for w^2 term near the bottom boundary
1113     - (hopefully) improve the lateral slip boundary condtions for use with
1114        partial/looped cells
1115      - because the bug fix changes two verification experiments anyway (exp5
1116        and plume on slope), change the lateral boundary condition from half slip
1117        to the value of no_slip_sides
1118    o ebm package wasnt quite up to the parallel task. Fixed that.
1119    o Adjoint of EBM package + verification
1120      * TLM OK
1121      * ADM not sufficient accuracy yet (needs further testing)
1122    
1123    checkpoint53b_post
1124    o Commiting new energy balance model to repository
1125      * package is pkg/ebm
1126      * verif. is verification/global_ocean_ebm
1127      * references are in ebm_driver.F
1128    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1129    C        Global thermohaline circulation. Part I:
1130    C        Sensitivity to atmospheric moisture transport.
1131    C        J. Climate 12(1), 71-82
1132    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1133    C        Global thermohaline circulation. Part II:
1134    C        Sensitivity with interactive transport.
1135    C        J. Climate 12(1), 83-91
1136    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1137    C        Destabilization of the thermohaline circulation
1138    C        by atmospheric eddy transports.
1139    C        J. Climate 7(12), 1870-1882
1140    o Will need long integration testing.
1141    checkpoint53b_pre
1142    
1143    o created pkg/mom_common in preparation for variable viscosity code
1144    o renamed and split ini_mnc_io
1145    o pkg/land: only liquid water can diffuse or run-off
1146    o AIM using land: soil wetness availability account for snow
1147    o added printMapIncludesZeros to EEPARMS namelist
1148    
1149    checkpoint53a_post
1150    o restore TAMC compatiility for exf_constants.h
1151      (no usage of _d in .h)
1152    o Additional storing in KPP in an attempt to fix
1153      TAMC problem with adjoint of KPP code.
1154      (no success...)
1155      Identical code works fine with TAF.
1156    o Fixed verification/natl_box_adjoint experiments.
1157      Initial conditions for Experiments 4 and 5 are now
1158      set to "SEAICE_initialHEFF=0", which is more reasonable,
1159      and hence gives results closer to that of Experiment 2.
1160      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1161    
1162    checkpoint53
1163    o stable checkpoint with up to date adjoint
1164      TLM tests only run for 1st grdchk at the moment. Its unclear if
1165      this is a code problem or a problem with resetting code for g_
1166      variables that is being autogenerated wrong.
1167      Otherwise:
1168       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1169       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1170         are both still in chaos following their security messes.
1171    
1172    checkpoint52n_post
1173    o various build (mostly genmake2) changes including:
1174      - ability to build/run more easily within Cygwin and MacOS X
1175      - more complicated Makefiles with a stronger dependence on Gnu Make
1176    o pkg/seaice modifications
1177      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1178        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1179        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1180      - changed proxy for geostrophic velocity and updated
1181        verification/lab_sea/results/* accordingly
1182      - removed ADI dynamic solver from pkg/seaice
1183      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1184        they caused a segmentation fault under certain circumstances
1185      - removed unused field WATR
1186    o bug fix in exf-package:
1187      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1188         now reflect that.
1189    o small fixes in the cal-package:
1190      - set reference date to first of January for the 'model'-calendar
1191      - failing of cal_CheckDate in cal_FullDate now actually results in a
1192        warning
1193    o small modifications in exf-package to increase flexibility:
1194      - change climtempfreeze from a constant to a runtime parameter that
1195        is specified in data.exf_clim (default = -1.9)
1196      - introduce runtime parameter windstressmax (default = 2.0) that is
1197        specified in data.exf
1198    o fix in pkg/thsice:
1199      - update Evap (Tsf changes) to be consistent with Latent heat flux
1200      - maintain snow precipitation unchanged (even if Tsf >=0).
1201     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1202    
1203    checkpoint52m_post
1204    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1205      this does not change any of the results, because myIter=0 in swfrac always
1206      lead to jwtype=2 (the default anyway), but the call makes little sense
1207      as a default
1208    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1209    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1210      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1211    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1212    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1213    o extending useSingleCpuIO option to work with new exch2 I/O format
1214      - old-style, missing-tile I/O is still accessible by defining CPP
1215        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1216    o monitor package can write to NetCDF files and/or STDOUT
1217    o fix re-definition bug in MNC_GRID_INIT_ALL()
1218    o doc/api_reference added
1219      - a framework for building an API Reference Manual using all
1220        the "protex" comments embedded in the code
1221      - see pkg/generic_advdiff, pkg/mnc for examples
1222    o MNC:
1223      - make myThid the last argument for all subroutines
1224      - new default for the grid files: NO halos
1225      - add useMNC and other run-time flags
1226      - separate per-file-group handling of the unlimited dimension
1227      - early initialization of MNC w/ flags read at the eeboot stage
1228        and lookup tables set in initialize_fixed
1229      - write all MNC output to a freshly-created directory
1230    o thermodynamics sea-ice (thsice) is now tested with testreport.
1231    o test exp. advect_cs: use the standard cs32 grid ; update output.
1232    o Added functionality to grdchk:
1233      pick global i,j,k position (or nearest wet) where to perform check.
1234    
1235    checkpoint52l_post
1236    o new land formulation:
1237      a) use ground enthalpy as prognostic variable to ensure exact
1238         energy conservation.
1239      b) account for water temperature and for latent heat of freezing
1240         in all processes (rain, run-off, ground storage)
1241      c) compute surface and ground temperature implicitly.
1242    o aim_v23 modification for new land model:
1243      a) Treat separately land / ocean / sea-ice surface fluxes
1244         to allow implicit computation of land & sea-ice surface temp.
1245      b) add snow precipitation.
1246    checkpoint52l_pre
1247    
1248    o fix problem (when 1 tile is empty) in min/max monitor.
1249    o fix bug in timeAve (u,vZetatave in common block)
1250    o no restoring terms under ice for pkg/seaice
1251    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1252    o bug fix for pkg/seaice pickups
1253    o change MNC call locations and add coordinate attributes
1254    o mask vorticity at the corner ; affects global_ocean.cs output
1255    o fix ini_curvilinear_grid ; test CS experiments with mpi
1256    o aim.5l_cs: modify sea-ice fraction input file ; update output
1257    o exf: Adding simple range check routine for exf fields after read
1258    
1259    checkpoint52k_post
1260    o removed top-level directory "diags"
1261      - we migrated these functions to pkg/timeave a long time ago
1262    o fixed bug introduced in pkg/monitor
1263    o accuracy ctrlprec = 32 insuffient for gradient checks using
1264      averaged fields (I/O via cost_averages)
1265      -> use ctrl.h in active_file*.F to control I/O precision.
1266    o paramter list of CALL ADTHE_MAIN_LOOP
1267    o added initial do_the_model_io to ecco
1268    o set all ...Freq to zero after cost_final
1269      taveFreq, dumpFreq, pChkptFreq
1270    o MAIN and ECCO differentiability restored
1271    
1272    checkpoint52j_post
1273    o fix nchklev in tamc.h for global_ocean...
1274    o Bringing flow and store directives up-to-date
1275    o Really weird thing!
1276      call do_the_model_io from the_main_loop with parameters
1277      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1278      TAF places a faulty re-call of initialise_varia
1279      after cost_final call which should not be there!
1280    checkpoint52j_pre
1281    
1282    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1283      error messages
1284    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1285    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1286      debug output
1287    o modfied mdsio_writefield.F to handle non-global files under exch2
1288    o update AIM Cubed-Sphere exp (aim.5l_cs):
1289      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1290    o update AIM Equatorial Channel exp:
1291      use standard aim_v23 pkg and change the SST fields to be more realistic.
1292    o globalFile now works with exch2
1293    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1294      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1295    o limit timeave output for hi-res integrations
1296    
1297    checkpoint52i_post
1298    o removed CPP_EEOPTIONS.h from verification/*/code
1299    o updated the tiling for global_ocean_pressure
1300    checkpoint52i_pre
1301    
1302    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1303      the old pkg/aim).
1304    
1305    checkpoint52h_pre
1306    o shortened offending lines in exch2_send_rx?.template
1307    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1308    o genmake2: add build & execute test for NetCDF code
1309    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1310      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1311    o added useSingleCPUIO flag to monitor.F and mon_out.F
1312    o added temporary hack for sea-ice dynamics on the cube:
1313      metric terms are ignored and it is assumed that
1314      there is no sea-ice on cube faces 1, 2, 4, and 5.
1315    
1316    checkpoint52f_post
1317    o added exch2 cube routines to pkg/exch2
1318    o modified hs94.cs-32x32x5 to use it
1319    o added new grid files to hs94.cs-32x32x5
1320    checkpoint52f_pre
1321    
1322    checkpoint52e_post
1323    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1324      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1325    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1326      to work with implicit vertical advection and AB ;
1327    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1328    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1329     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1330    checkpoint52e_pre
1331    
1332    o fix bug in impldiff when Nr=1 or Nr=2.
1333    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1334    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1335    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1336      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1337    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1338    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1339    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1340    
1341    checkpoint52d_post
1342    o re-tiled many expts to allow comparison in multi-processor mode
1343      - updated output accordingly
1344      - changed hs94.128x64x5 to use intial T from file rather than use the
1345        random number generator
1346    o add infrastructure in model routines for fizhi and gridalt packages
1347    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1348    o changes to permit hi-res, cubed-sphere, configuration
1349      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1350      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1351      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1352        of surface winds for the cube
1353      (A verification experiment, based on global_ocean.cs32x15, but with
1354       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1355       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1356       complete with example surface forcing files and matlab scripts to look
1357       at the output and compare it with that of global_ocean.cs32x15.)
1358    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1359       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1360       to conform to the common rule.
1361    o check-in the first version of the coupler + interfaces for multi-components
1362       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1363       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1364       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1365       - ocean and atmos. share the same horizontal grid (no interpolation).
1366       - exchanges between component and coupler is done in forward_step
1367    o new verification experiment, cpl_aim+ocn:
1368       coupled ocean - AIM atmosphere on cs32 grid.
1369    
1370    checkpoint52d_pre
1371    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1372    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1373    
1374    checkpoint52c_post
1375    o Fixing OPTIONS files for use of exf:
1376      - ALLOW_ECCO not needed
1377      - ECCO_CPPOPTIONS.h should not be included from
1378        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1379        as has been the case in the past
1380      - All cal/exf related options are currently set in
1381        single header file. Should remain so until we
1382        agree on a consistent new policy.
1383    o Removed all CPP options for cal package.
1384      cal has no more CPP options.
1385    o modified STOREs in GAD_ADVECTION
1386    o corrected key comp. for passkey
1387    
1388    checkpoint52b_post
1389    o new version: "thsice" of thermodynamic sea-ice pkg:
1390     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1391     - modify fluxes but do not change theta directly;
1392     - light cleaning of bulk_force pkg (still needed with thsice).
1393     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1394       + output_thsice.txt to test thsice & bulk_force pkgs.
1395    o put back grid & coriolis monitor output.
1396    checkpoint52b_pre
1397    
1398    o call "do_the_model_io" at the beginning (=> dump initial state)
1399    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1400    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1401      (need info on NUMBER_OF_PTRACERS)
1402    o missing PTRACERS headers in some routines
1403    o default tamc.h in pkg/autodiff supposed to crash
1404      to ensure proper customization
1405    
1406    checkpoint52a_post
1407    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1408      - moved surfaceTendencyTice from pkg/seaice to main code
1409      - subroutine FREEZE_SURFACE now limits only surface temperature
1410        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1411        => new output.txt for global_ocean.cs32x15 & global_with_exf
1412      - keep the old version of FREEZE for backward compatibility;
1413        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1414      - corresponding modifs for TAF directives
1415    o added surface flux output variables to TIMEAVE_STATVARS
1416    o time-averaged output for pkg/ptracers
1417    o fix problem with ECCO-related divided adjoint
1418      snapshot file was missing some ad-variables,
1419      but no warning issued by TAF
1420    
1421    checkpoint52a_pre
1422    o some bug fixes for #undef REAL4_IS_SLOW
1423    
1424    checkpoint52 = ecco_c52_e35
1425    o after testing adjoints of checkpoint51u_post
1426    
1427    checkpoint51u_post
1428    o this is the post-merge tag of the ecco-branch
1429      (needs another clean checkout and re-testing)
1430    o various natl_box_adjoint configs and results
1431      but no input fields
1432    o obcs adjoint not yet merged!
1433    o adding ECCO global 1x1 and 2x2 degree configs
1434    o updated/extended some store directives for seaice
1435    o pkg/ecco now containes ecco-specific part of cost function
1436    o top level routines the_main_loop, forward_step
1437      supersede those in model/src/
1438      previous input data.cost now in data.ecco
1439      (new namelist ecco_cost_nml)
1440    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1441    
1442    checkpoint51t_post
1443    o this is the pre-merge tag of the ecco-branch
1444    
1445    checkpoint51s_post
1446    o cleanup: removed various obsolete #define-s
1447    o pkg/grdchk
1448      - renamed 'ph-grd 3' to 'grad-res'
1449      - merged from ecco-branch
1450        (remaining bug fixes for obcs gradient checks)
1451      - additional high-precision output for testreport
1452        (grep for 'precision_grdchk_result')
1453    
1454    checkpoint51r_post
1455    o cleaned up or removed CPP_OPTIONS.h files
1456    o updated results for some of the tests to reflect the new
1457      optfiles (-ieee: -O0 instead of -O3)
1458    
1459    checkpoint51q_post
1460    o cd_code:
1461      - moved cd_scheme.F -> cd_code_scheme.F
1462      - separate read_checkpoint from cd_code_ini_vars.F
1463      - separated cd_code part from write_checkpoint
1464      - updated AD_SOURCE, generated .flow
1465      - added CD_CODE_VARS.h to the_main_loop
1466      - Moving cd_code specific store dir.s to pkg/cd_code
1467    o ctrl package totally restructured
1468      - pack/unpack now optional and decoupled from
1469        xx_/adxx_ I/O
1470      - ctrl_pack/unpack cleaned
1471        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1472      - confined inclusion of AD_CONFIG.h to where necessary.
1473    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1474    
1475    checkpoint51p_post
1476    o create initial cd_code package
1477      - WARNING: the initialization of fields within packages
1478        is broken because INI_FIELDS (where READ_CHECKPOINT is
1479        called) is called *before* PACKAGES_INIT_VARIABLES.
1480        This seems to be backwards since
1481        1) its important to initially zero the entire field including
1482           the "halo" region
1483        2) zeroing needs to be done *before* reading pickup info
1484           and the pickup call might or might not happen in any
1485           particular run
1486      - this needs an overhaul for R2
1487    o cleanup verification/*/code/GMREDI_OPTIONS.h
1488    o cleanup testreport
1489    
1490    checkpoint51o_post
1491    o bringing AD-related verif's up to date with genmake2
1492      - carbon/
1493      - global_ocean.90x40x15/
1494      - hs.94.1x64x5/
1495      - (front_relax/ )
1496    o (more) consistent directory structure for AD-related verif.'s
1497    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1498    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1499    o bug fix in find_alpha.F for MDJWF:
1500      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1501        change rho -> rho-rhoConst
1502      - replace call find_rho to find_rhonum
1503    o initialisation of rFlx extended to full array (required by TAF)
1504      and shifted to thermodynamics
1505    o removed PTRACERS.h in ptracers routine
1506    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1507    o Correcting initialisations for fVerU, fVerV.
1508    o helping TAF to recognize dependency on kUp for
1509      fVerU, fVerV
1510    o Replacing delZ by delR in pkg/ctrl/
1511    checkpoint51o_pre
1512    
1513    o undid all of cp51 pending some cleanups and discussion
1514    o added the [#include "AD_CONFIG.h"] statement to all files that need
1515       it for adjoint/tl #defines
1516     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1517     o removed tools/genmake since it no longer works
1518    
1519    checkpoint51n_post
1520    o modifications to make FREEZE flux visible to pkg/kpp
1521      - moved surfaceTendencyTice from pkg/seaice to main code
1522      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1523      - subroutine FREEZE now limits only surface temperature
1524        (this means new output.txt for global_ocean.90x40x15,
1525         global_ocean.cs32x15, and global_with_exf)
1526    o added surface flux output variables to TIMEAVE_STATVARS
1527    
1528    checkpoint51n_pre
1529    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1530    o added [#include "AD_CONFIG.h"] to all files that use the following
1531      defines:
1532      - ALLOW_ADJOINT_RUN
1533      - ALLOW_TANGENTLINEAR_RUN
1534      - ALLOW_ECCO_OPTIMIZATION
1535    
1536    checkpoint51m_post
1537    o incorporating changes to get TAMC/TAF working in genmake2
1538      - added new TAMC/TAF targets to the Makefile
1539      - various cleanups related to package handling
1540      - these changes should have no impact on the forward model
1541    
1542    checkpoint51l_post
1543    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1544     - faster algorithm for cal_addtime.F
1545     - higher precision arithmetic, where needed
1546     - pkg/exf *startdate variables changed from calendar date to
1547       model integration time
1548    
1549    checkpoint51l_pre
1550    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1551    o enable to apply restoring on S & T only in a latitude band.
1552    o update output (external_forcing_surf modif. change truncation errors)
1553       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1554    
1555    checkpoint51k_post
1556    o change default to: useNHMTerms=.FALSE.
1557     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1558       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1559     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1560        exp1, ideal_2D_oce
1561     - change data file of oceanic exp (leave the results unchanged for now)
1562       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1563    o set gravitySign automatically according to the vertical coordinate used
1564      (and change sign: back to "logical" value: +1 when R increases downward)
1565    o added an include barrier to the default CPP_OPTIONS.h and
1566      removed the #include "PACKAGES_CONFIG.h" from it
1567    o fix a bug in mom_fluxform (from chk51j_post)
1568    
1569    checkpoint51j_post
1570    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1571    o adjusted some flow directives (dynamics, thermodynamics)
1572    o added cubed-sphere case to test cost function
1573    o heckpoint_lev?_directives.h now include
1574      pkg-specific directives, whenever those are enabled.
1575    o Moving pkg-specific flow directives to corresponding pkg
1576      Moving pkg-specific differentiation list to corresponding pkg
1577      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1578      ---> conventions are
1579           - pkg_ad.flow
1580           - pkg_ad_diff.list
1581           - pkg_ad_check_lev?_dir.h
1582    
1583    checkpoint51i_post
1584    o merge of the branch-genmake2
1585      - knowingly breaks the older genmake
1586      - automatic generation of all ALLOW_${PKG_NAME} defines
1587      - new testreport supersedes older testscript
1588    o large number of package inclusion and header cleanups
1589    checkpoint51i_pre
1590    
1591    o new output for adjoin of global ocean vector invariant
1592    o fix for checkpoint of thermodynamic seaice and bulk_force
1593    o Steph gchem various cleanups
1594    
1595    checkpoint 51h_pre
1596    o fixed some single quotes
1597    o modify gchem pkg to be more versatile
1598    o modifications to clean up dic pkg
1599    o add pkg/cfc
1600    
1601    checkpoint51g_post
1602    o provide links for ARPACK and ADM*TLM
1603    o start removing verification/vero/
1604    o update AD-related stuff
1605      (in particular some IF-statements in model/src/ routines)
1606    o adding to verification/global_ocean.90x40x15/ adjoint of
1607      vector invariant setup
1608    
1609    checkpoint51f_post
1610    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1611    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1612      of tracer Green's fucntions for ocean inversion project.
1613    
1614    checkpoint51f_pre
1615    o Added on-the-fly spatial interpolation capability
1616        "USE_EXF_INTERPOLATION" to pkg/exf.
1617      - This is a temporary Cartesian-grid hack until
1618        the super-duper ESMF coupler becomes available.
1619      - See verification/global_with_exf/README for usage example.
1620      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1621        flags and modified pkg/seaice accordingly.
1622    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1623        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1624        non-local transport term.
1625    
1626    checkpoint51e_post
1627    o pkg/mom_vecinv:
1628      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1629      - add time-ave diagnostic of vorticity advection.
1630    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1631    o atmospheric geopotential: - include water vapor effect;
1632                                - use p^kappa in p* scaling.
1633    o land pkg: read initial state from files.
1634    o AIM : add stratospheric drag in the upper level
1635    
1636    checkpoint51d_post
1637    o change function ILNBLNK (=> last non-blank char.) to return zero
1638      (instead of the string length) when the string. char is empty
1639    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1640    o modif's to restore TAMC compatibility
1641      - avoid "_d" constructs in PARAMETER declarations
1642      - avoid interrupting lines by comment lines
1643    o Use cluster local disks for purely local I/O
1644      vs. globally visible disks needed for ctrl stuff
1645      (merged from ecco-branch)
1646      - new active_file_loc... and mdsio_..._loc routines
1647      - affected packages: autodiff, ctrl, grdchk, mdsio
1648    
1649    checkpoint51c_post
1650    o introducing integer flag debugLevel
1651      - debLevZero: suppress all output
1652      - debLevA: standard
1653      - debLevB: equivalent to current debugMode=.TRUE.
1654    o introducing pathname variable mdsioLocalDir for mdsio
1655      that can be specified at runtime
1656      (relevant for cluster I/O to local disk)
1657    `
1658    >>>checkpoint51b_post
1659    adjoint of ptracers
1660    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1661    o extended state in checkpoint_lev?, etc.
1662    o alternative ctrl/cost with tr1 or ptracer
1663    o new comlev1_bibj_ptracers
1664    o new ptracers.flow
1665    o made ptracers_forcing same as external_forcing_s
1666    o added verification for adjoint with ptracers
1667      - adm. grdchk fail so far
1668      - tlm. grdchk OK
1669      - checked tapelev/comlev recomputations: OK
1670    <<<checkpoint51b_pre
1671    
1672    checkpoint51a_post
1673    o added code for biogeochemistry package
1674      - new pkgs: dic, gchem
1675      - new subroutine in ptracers
1676    o modify code for biogeo packages
1677      - in model/src and pkg/ptracers
1678    
1679    checkpoint51
1680    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1681      - autodiff, ctrl, exf, grdchk, seaice
1682      kept separate packages
1683      - cost, ecco, obcs
1684    o updating verification/internal_wave, verification/lab_sea
1685      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1686    
1687    checkpoint50i_post
1688    o Preparing next differentiable checkpoint and sync
1689      of MAIN vs. ecco-branch
1690      - 1st step: this one is differentiable
1691      - 2nd step: next(! not this) checkpoint will have updated packages
1692                  from ecco-branch)
1693    
1694    checkpoint50h_post
1695    o new package "land": provide surface BC for AIM.
1696    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1697    o AIM: use true log-P extrapolation for near surface temp (= as in
1698        F.Molteni paper) ; update aim.5l_cs output.
1699    o New variable in PARM03 for more flexible pickups
1700    o somewhat cleaned package initialisation sequence for
1701      ctrl/ cost/ ecco/ in packages_... routines
1702    
1703    checkpoint50g_post
1704    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1705      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1706      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1707        made the default because of faster convergence than ADI
1708    
1709    checkpoint50f_post
1710    o exf totally restructured
1711      - replaced all exf_set_ routines by one generic exf_set_gen.F
1712        and made sure it's still differentiable
1713      - split exf_getffields.F into new exf_bulkformulae.F
1714      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1715      - updated adjoint/makefile and relevant verif. accordingly
1716    
1717    checkpoint50f_pre
1718     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1719          + change Evap over land. (update aim.5l_cs output)
1720     o added missing .cvsignores and made uniform across expts
1721     o changed configuration of tidal_basin_2d expt
1722     o added pkg/debug functions for tracing code in fatal crashes
1723     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1724     o new fn in pkg/monitor to stop model if solution grows too big
1725     o removed lots of single quotes from comments
1726    
1727    checkpoint50e_post
1728    o make KPP work with PTRACERS
1729     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1730       nearly a copy of kpp_transport_s
1731     - there is no analogue to SurfaceTendencyS, so I have to use
1732       gPtr(of the surface layer) instead
1733    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1734    checkpoint50e_pre
1735    
1736    checkpoint50d_post
1737    o change kpp output from multiple-record state files to single-record state
1738      files analogous to write_state.F
1739    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1740      analogous to the cg2d-related output.
1741    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1742      so that writing to internal file fn (with length 512) fails.
1743    checkpoint50d_pre
1744    
1745    checkpoint50c_post
1746    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1747    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1748    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1749    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1750    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1751    
1752    checkpoint50c_pre
1753    Merging from release1_p13:
1754    o bug fix for pkg/seaice dynamic solver
1755    o Added SEAICE_initialHEFF to pkg/seaice
1756    
1757    checkpoint50b_post
1758    o store u*,v* in gU,V instead of in guNm1,gvNm1
1759    o in order to put the momForcing out of the Adams-Bashforth:
1760      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1761      to timestep.F
1762    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1763    o re-generate output for highly sensitive test-exp:
1764       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1765    
1766    checkpoint50b_pre
1767    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1768    o corrected CPP option mismatch in exf_Bulk... functions for case
1769      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1770    
1771    checkpoint50a_post
1772    o Bug fix for merging between c50 and KPP.
1773      ikey was passed from thermodynamics to kpp_calc via
1774      common block rather than being recomputed in kpp_calc,
1775      in contradiction with new key itdkey.
1776      New key ikppkey created, and tamc.h headers updated.
1777    
1778    checkpoint50
1779    - 2nd step of merge with ecco-branch:
1780      merge changes in ecco-branch back into main trunk
1781    - bug fix in find_alpha
1782    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1783    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1784    - merged some sliced AD support routines
1785    
1786    checkpoint49
1787    merged from ecco-branch:
1788    o exf:
1789      - Enable initialisation of forcing fields to constant
1790        (runtime) values.
1791      - in exf_getffields.F
1792        Reduce i-/j-loop to interior domain, discarding overlaps.
1793        That also fixes wrong TAF-key computations for key_1, key_2
1794        with bulf formulae.
1795      - exf_init.F modify #ifdef for exf_init_evap
1796      - exf_getffieldrec.F, ctrl_getrec.F
1797        The following INT-usages are not safe:
1798          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1799          fldcount = int(fldsecs/fldperiod) + 1
1800        and were modified.
1801    o autodiff: checkpoint_lev...
1802      - updated storing for bulk formulae (some arrays were missing)
1803      - added state for seaice package
1804      - synchronized with main branch
1805    o DIVA:
1806      Modif.s in
1807      - the_main_loop.F
1808      - the_model_main.F
1809      and added cost_final_restore.F cost_final_store.F
1810      o With these changes, it is possible to fully separate
1811        the first forward run to compute the cost function (mdthe_main_loop)
1812        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1813        into separate model executions.
1814        This enables better tuning of DIVA to given queue sizes.
1815      o Loss of cost function value in consecutive DIVA runs is
1816        fixed by storing to 'costfinal' file.
1817      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1818        beginning/end of adjoint integration is accounted for.
1819      The current changes apply to TAF-1.4.26.
1820      TAF has one remaining bug, requiring one manual change
1821      (see MITgcm manual).
1822    o cal: synchronized between MAIN and ecco-branch
1823    
1824    checkpoint48i_post
1825    o Changes to restore differentiability of code w.r.t. previous tag
1826      (mostly adding new routines to make list and replacing
1827      pressure by totPhiHyd).
1828    o Updated and merged grdchk package
1829      - has both ADM and TLM checks
1830      - works for single- and multi-proc.
1831      - output cleaned
1832      - worked successfully for parallel DIVA
1833    o genmake:
1834      - Adding -platform=SP4
1835      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1836    o Modif. for DIVA:
1837      ctrl_unpack should not be called in intermediate DIVA interval.
1838      (similar thing would apply for active files such as
1839      tbar, sbar, psbar, which should not be reinitialised;
1840      only relevant for ecco-branch)
1841    
1842    checkpoint48h_post
1843    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1844    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1845    o Added SEAICE_initialHEFF to pkg/seaice
1846    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1847    
1848    checkpoint48g_post
1849    --- EOS:
1850    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1851      store total Potential in totPhyHyd for diagnostics & EOS.
1852    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1853    --- Pressure/geopotential gradient:
1854    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1855    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1856      ( changes results of global_ocean_pressure )
1857    o NLFS + z-coord.: add eta*Rho' contribution.
1858    o accurate phiHyd when using interface-W at the middle between 2 centers
1859     ( changes results of ideal_2D_oce )
1860    o includes r* 2nd term in potential gradient.
1861    
1862    checkpoint48f_post
1863    Merging from release1_p12:
1864    o Modifications for using pkg/exf with pkg/seaice
1865      - improved description of the various forcing configurations
1866      - added basic radiation bulk formulae to pkg/exf
1867      - units/sign fix for evap computation in exf_getffields.F
1868      - updated verification/global_with_exf/results/output.txt
1869    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1870      (SBO) core products, including oceanic mass, center-of-mass,
1871      angular, and bottom pressure (see pkg/sbo/README.sbo).
1872    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1873      to avoid negative values in shallow regions.
1874      - updated verification/natl_box/results/output.txt
1875      - updated verification/lab_sea/results/output.txt
1876    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1877    o Added useSingleCpuIO option (see PARAMS.h).
1878    o Updated useSingleCpuIO option in mdsio_writefield.F to
1879      work with multi-field files, e.g., for single-file pickup.
1880    o pkg/seaice:
1881      - bug fix in growth.F: QNET for no shortwave case
1882      - added HeffFile for specifying initial sea-ice thickness
1883      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1884    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1885      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1886    o pkg/seaice:
1887      - adjoint-friendly modifications
1888      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1889    
1890    checkpoint48e_post
1891    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1892    o dynamics: change definition of computational domain & adapt mom_fluxform
1893      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1894    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1895        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1896        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1897        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1898        inverted_barometer solid-body.cs-32x32x1
1899      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1900    
1901    checkpoint48d_post
1902    o in preparation for r*:
1903     a) use pre-computed gradient of hydrostatic potential:
1904        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1905     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1906        => affects results of glob_oce_pressure (different truncation error)  
1907      update output.txt of ideal_2D_oce & global_ocean_pressure
1908    
1909    checkpoint48d_pre
1910    o in preparation for r*:
1911      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1912      pass the 2 comp. of the grad. as arguments to momentum S/R.
1913      but for the moment, only used if it does not change the results.
1914    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1915    
1916    checkpoint48c_post
1917    Modifications in treatment of initial flux forcing controls
1918    to avoid extra storing of flux fields.
1919    
1920    checkpoint48c_pre
1921    o Added tidal_basin_2d experiment (currently 1D!)
1922    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1923    
1924    checkpoint48b_post
1925    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1926     (modification to pressure gradient not yet implemented)
1927    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1928      (for U & V) that are used for vertical advection of momentum.
1929    
1930    checkpoint48a_post
1931    o In preparation for r*, use temp. array to compute vertical transport
1932       in flux-form momentum pkg. => change results of few test-exp.
1933      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1934                        lab_sea, natl_box & plume_on_slope
1935    
1936    checkpoint48
1937    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1938    
1939    checkpoint47j_post
1940    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1941    o moved adexch from forward_step to addummy_in_stepping
1942    o added exch in ctrl_map_...
1943    o aveFreq.=0. at end of cost_final to avoid overwrite in
1944      reverse checkpointing loop
1945    o Yet more changes in gmredi:
1946      * adgmredi_calc_tensor
1947        avoiding all recomputation of gmredi_slope_limit
1948      * adgmredi_x/y/rtransport
1949        added flag for excessive storing to avoid recomp. of
1950        u/v/rtans, dTdx/y/z
1951        -> this is not really necessary and very memory-consuming
1952      * adgmredi_slope_psi:
1953        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1954      * gmredi_slope_limit
1955        re-activated full calculation of taperfct for case 'ac02'
1956    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1957    
1958    checkpoint47i_post
1959    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1960    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1961      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1962    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1963    o gmredi: fix few bugs.
1964    
1965    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1966    This will be a good checkpoint to plug into the ecco-branch.
1967    o few modif.'s to get latest version adjointed
1968      (mainly kick out code in ini_linear_phisurf)
1969    o modif's to run adjoint with exactConserv
1970    o case GM_BOLUS_ADVEC should be cleaned
1971      S/R gmredi_slope_psi should be cleaned
1972    o verification/carbon now has exactConserv=.TRUE.
1973    
1974    checkpoint47g_post
1975    o time-average AIM output: becomes independent from statvars time-average
1976      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1977    o After TAF bug fix:
1978      Tested adjoint of gmredi package.
1979      Tests were done with checkpoint47 rather than with latest
1980      checkpoint47f_post since the latter is broken for the adjoint
1981      verification/carbon/ contains both ADM and TLM gradient checks.
1982    Here they are, before they get changed/lost/stolen.
1983    Mostly modif.'s to fix numerical sensitivities.
1984    Gradient checks OK for
1985    - GM_taper_scheme:
1986      * clipping
1987      * ac02
1988      * linear
1989      * glw91
1990      * dm95
1991      * ldd97
1992    - GMREDI_OPTIONS:
1993      * GM_VISBECK_VARIABLE_K
1994      * GM_NON_UNITY_DIAGONAL
1995      * GM_EXTRA_DIAGONAL
1996      * GM_BOLUS_ADVEC
1997    in conjunction with data.gmredi parameters to be checked in
1998    in a few minutes under verification/carbon/code/
1999    
2000    checkpoint47f_post
2001    Merging from release1_p10:
2002    o modifications for using pkg/exf with pkg/seaice
2003      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2004        and SEAICE_EXTERNAL_FLUXES
2005      - pkg/exf CPP options EXF_READ_EVAP and
2006        EXF_NO_BULK_COMPUTATIONS
2007      - usage examples are Experiments 8 and 9 in
2008        verification/lab_sea/README
2009      - verification/lab_sea default experiment now uses
2010        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2011    
2012    checkpoint47e_post
2013    o created a tag prior to creating a branch
2014    
2015    checkpoint47d_post
2016    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2017      at the bottom boundary had an erroneous half slip boundary condition
2018    o added bottom drag and no slip boundary condition capabilities to
2019      oceanic pressure coordinates code
2020    o added new verification experiment global_ocean_pressure, this experiment is
2021      also described in the tutorial section of the manual
2022    checkpoint47d_pre
2023    
2024    checkpoint47c_post
2025    o Added a verification experiment for a global cubed-sphere ocean run
2026      -  verification/global_ocean.cubed32x32x30
2027      -  uses pkg/therm_seaice and pkg/bulk_forcing
2028    
2029    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2030    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2031      when using P-coordinate; only implemented for atmospheric config.
2032    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2033      NOTES: requires option NONLIN_FRSURF to be "#define".
2034    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2035    
2036    checkpoint47b_post
2037    Merging from release1_p9:
2038    o pkg/seaice
2039      - removed GOTO's and added taf directives
2040      - double precision constants to reduce the g77 (Linux)
2041        to F77 (SGI) differences reported in release1_p8
2042    o tools/genmake
2043      - added SGI options
2044    o verification/testscript
2045      - updated to that of checkpoint47a_post
2046    o verification/global_ocean.90x40x15/input/eedata
2047      - modified for SGI f77 compatibility
2048    o verification/lab_sea
2049      - added description of sea-ice model
2050      - added missing matlab routines
2051      - added test of thermodynamics parallelization
2052    
2053    checkpoint47a_post
2054    o new pkg: aim_v23
2055     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2056       for now, keep the same surface forcing as before.
2057     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2058     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2059     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2060    o add diagnostic of surface correction term in monitor output
2061    
2062    o bulk_force and therm_seaice
2063    - Two packages:  bulk_force (Bulk forcing)
2064      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2065    - Earlier integration from Stephaine Dutkiewicz
2066      and Patrick Heimbach.
2067    - Two ifdef statements for compile time,
2068       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2069    
2070    checkpoint47
2071    differentiable version of checkpoint46n_post
2072    o bug fix in quasihydrostaticterms
2073    o * "clean" adjoint code (in terms of extensive recomputations)
2074        can now be obtained for all GMREDI options (i.e. for
2075        - GM_VISBECK_VARIABLE_K
2076        - GM_NON_UNITY_DIAGONAL
2077        - GM_EXTRA_DIAGONAL
2078        - GM_BOLUS_ADVEC )
2079      * However, wrong gradient check problem remains unsolved.
2080      * New CPP options have been introduced for different
2081        tapering schemes
2082    o external_fields_load now part of differentiation list
2083    o pressure needs multiple storing;
2084      would be nice to have store_pressure at beginning or
2085      end of forward_step, e.g. by having phiHyd global (5-dim.)
2086      (NB: pressure is needed for certain cases in find_rho,
2087      which is also invoked through convective_adjustment).
2088    o recomputations in find_rho for cases
2089     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2090    o #define ATMOSPHERIC_LOADING should be differentiable
2091    o ini_forcing shifted to begining of initialise_varia
2092    o Incorporating QNVS line search routines into MITgcm
2093      (this is separate code, and therefore not under pkg)
2094      lsopt/, optim/
2095    o Updated verification/carbon/
2096      - #define GM_VISBECK_VARIABLE_K
2097      - GM_taper_scheme    = 'ldd97'    
2098    
2099    checkpoint46n_post
2100    Merging from release1_p8:
2101    o verification/natl_box:
2102      updating new external_fields_load routine
2103    o New package: pkg/seaice
2104      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2105      The sea-ice code is based on Hibler (1979-1980).
2106      Two sea-ice dynamic solvers, ADI and LSR, are included.
2107      In addition to computing prognostic sea-ice variables and diagnosing
2108      the forcing/external data fields that drive the ocean model,
2109      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2110      The implied surface heat flux is then stored in variable
2111      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2112      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2113      non-local transport term.  Because this call precedes model
2114      thermodynamics, temperature under sea-ice may not be "exactly" at
2115      the freezing point by the time theta is dumped or time-averaged.
2116      N.B.: fairly large differences in accuracy occur across
2117            different platforms/compilers; comparison between
2118            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2119            generated output gives:
2120       T           S           U           V
2121      C D M    c        m  s        m  s        m  s        m  s
2122      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2123      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2124      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2125    
2126      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2127    o GAD:
2128      - generated new common blocks to account for call of
2129        same gad routines with differing traceridentities
2130        (needed to modify tracerIdentity indices in GAD.h)
2131      - generated separate common blocks for case useCubedSphereExchange
2132        (Department of Futurology)
2133      - parameter lists to gmredi_?transport: added tracerIdentity
2134      - added new key indices to tamc.h
2135    o external_fields_load:
2136      - added this routine to TAF list
2137      - needed to make some common blocks global and additional storing
2138        along the same lines as exf package (checkpoint_lev?_directives.h)
2139    o exf:
2140      updated external forcing package
2141      - bug fixes carried over from ecco-branch
2142        (missing OBCS_OPTIONS.h in two routines)
2143      - enable easy to use "no forcing".
2144      - added exf I/O for atmospheric loading
2145      - added exf I/O for runoff data
2146      - transfered scaling between exf <-> MITgcm to exf namelist
2147    o Adding new verification experiment global_with_exf.
2148      This verification experiment is almost identical to the
2149      global_ocean.90x40x15 experiment, except that it uses
2150      the exf (and cal) package instead of the
2151      external_fields_load routine (cf README file).
2152    
2153    checkpoint46m_post
2154    o modified testscript to return -- when there are no lines of "%MON" output
2155    o added new flag "quasiHydrostatic" for QH mode
2156      and new routine quasihydrostaticterms()
2157    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2158      New routine: mom_u_coriolis_nh()
2159    o fixed sign of non-hydrostatic metric terms in u and v equations.
2160      Depend on correct sign of gravitySign.
2161    o added work.pc* to .cvsignore in aim directories using ifc
2162    o introduced flag for controllin non-hydrostatic metric terms
2163    o removed gravitySign from PARM04
2164    o switched to g77/ifc from pgf77 in aim experiments
2165    
2166    checkpoint46l_post
2167    o made convective adjustment work with pressure coordinates:
2168     - changed the direction of k-loop in convective_adjustment.F for the
2169       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2170     - adjusted the reference pressure k-index in convective_adjustment.F
2171     - adjusted the convection condition in convect.F (in analogy to
2172       calc_ivdc.F)
2173     - convective_adjustment no longer computes anything on the halos
2174     - removed the warnings about negative salinity from find_rho.F and
2175       find_alpha.F; instead the new routine look_for_neg_salinity, called
2176       at the beginning of find_rho, find_alpha, and find_beta, does a
2177       check of the entire slice, if CPP-option
2178       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2179    checkpoint46l_pre
2180    
2181    checkpoint46k_post
2182    o fixed the verification/global_ocean.90x40x15 experiment:
2183     - new bathymetry (the world according to A., JMC, and M.)
2184     - new initial fields and forcing fields (*.bin files)
2185     - new POLY3.COEFFS (for the next release one should switch to a full
2186       equation of state: JMD95P or MDJWF)
2187     - fixed several errors and redundancies in the data file
2188     - experiment uses looped cells
2189     - added matlab directory with diagnostic scripts for plotting of output
2190    
2191    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2192     - read AIM physics parameters from a file (data.aimphys)
2193     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2194    
2195    checkpoint46j_post
2196    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2197    o move wVel computation at the end of the time step, in S/R integr_continuity
2198    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2199    o update timeave pkg for wVel diagnostic.
2200    checkpoint46j_pre
2201    
2202    checkpoint46i_post
2203    o Clean up AIM package (and keep the results unchanged):
2204      include CPP_OPTION and use IMPLICT NONE in all routines ;
2205      declare all the variables _RL ; use _d 0 for all numerical constants.
2206      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2207    
2208    checkpoint46h_post
2209    o cleaned up the use of rhoNil and rhoConst.
2210      - rhoNil should only appear in the LINEAR equation of state, everywhere
2211        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2212        and the dynamical equations are all divided by rhoConst
2213    o introduced new parameter rhoConstFresh, a reference density of fresh
2214      water, to remove the fresh water flux's dependence on rhoNil. The default
2215      value is 999.8 kg/m^3
2216    o cleanup up external_forcing.F and external_forcing_surf.F
2217      - can now be used by both OCEANIC and OCEANICP
2218    checkpoint46h_pre
2219    
2220     Added code to convert surface volume flux (fresh water) into
2221     a mass flux when using P coordinates in the ocean (OCEANICP).
2222     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2223    
2224    checkpoint46g_post
2225    o Include a new diagnostic variable phiHydLow for the ocean model
2226      - in z-coordinates, it is the bottom pressure anomaly
2227      - in p-coordinates, it is the sea surface elevation
2228      - in both cases, these variable have global drift, reflecting the mass
2229        drift in z-coordinates and the volume drift in p-coordinates
2230      - included time averaging for phiHydLow, be aware of the drift!
2231    o depth-dependent computation of Bo_surf for pressure coordinates
2232      in the ocean (buoyancyRelation='OCEANICP')
2233      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2234        Theta, Salinity, and Pressure in the parameter list. This routine is
2235        presently contained in find_rho.F. This routine does not give the
2236        correct density for 'POLY3', which would be a z-dependent reference
2237        density.
2238    o cleaned up find_rho
2239      - removed obsolete 'eqn' from the parameter list.
2240    o added two new verification experiments: gop and goz
2241      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2242    checkpoint46g_pre
2243    
2244    checkpoint46f_post
2245    o Enable tangent linear (forward mode) gradient checks:
2246      - extended active file handling to g_... files
2247      - added TANGENT_SIMULATION to theSimulationMode
2248      - extended grdchk package accordingly
2249    o added tangent linear setup in verification/carbon/code_ftl
2250    o added adjoint setup in verification/front_relax/code_ad
2251    
2252    checkpoint46e_post
2253    o Added new equation of state -> MDJWF
2254      - EOS of McDougall et al., 2002, JAOT, submitted
2255      - caveat: the equation of state is only valid for a smaller (more
2256        realistic?) range of values than JMD95P/Z and UNESCO
2257      - added masks to the calculation of pressure in store_pressure
2258      - added more check values for density in check_eos (ini_eos.F), some of
2259        the old check values are out of the range of the MDJWF-eos, so don't
2260        expect perfect matches for those
2261    checkpoint46e_pre
2262    
2263    checkpoint46d_post
2264    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2265      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2266      case of pressure coordinates. eosType='JMD95Z' in
2267      combination with buoyancyRelation='OCEANICP' now causes an error.
2268    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2269      in find_alpha/beta.
2270    checkpoint46d_pre
2271    
2272    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2273      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2274    
2275    checkpoint46c_post
2276    o Changes necessary for ocean in p-coordinates
2277     -  Added new buoyancy relation = 'OCEANICP'
2278     -  Added new parameters = gravitySign (this used to be contained inside
2279        the factor dRdZ which I added when we first switched to R coordinates).
2280     X GM/Redi is not compatible (yet)
2281     X bottom drag and no-slip need to be debugged.
2282    checkpoint46c_pre
2283    
2284    checkpoint46b_post
2285    o Added new equation of state -> JMD95Z and JMD95P
2286      - EOS of Jackett and McDougall, 1995, JAOT
2287      - moved all EOS parameters into EOS.h
2288      - new routines ini_eos.F, store_pressure.F
2289    o Added UNESCO EOS, but not recommended because it requires
2290      in-situ temperature (see JMD95)
2291    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2292      unesco.f to be used with POLY3
2293    checkpoint46b_pre
2294    
2295    checkpoint46a_post
2296    o Added (atmospheric) pressure loading
2297      - new field in FFIELDS.h, etc...
2298      - new cpp flag ATMOSPHERIC_LOADING
2299    o Changed hFacC to _hFacC in calc_phi_hyd.F
2300    o Added SHORTWAVE_HEATING to some files for consistency
2301    checkpoint46a_pre
2302    
2303    checkpoint46
2304    further merges from release1_p5
2305    o new ctrl package
2306      - adopted from ECCO environment to enable optimization
2307      - added Eliassen Palm fluxes to controls
2308    o added Eliassen Palm flux controls to gradient check package
2309    o cost package
2310      - Compatible with new ctrl package
2311      - added Eliassen Palm cost hooks
2312      - modif's of existing cost functions
2313    o Adjoint-related bug fixes in kpp:
2314      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2315      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2316    o autodiff package
2317      - flow directives:
2318        + new for S/R do_the_model_io
2319        + enhanced for S/R checkpoint
2320        + new gmredi.flow
2321      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2322        disable adcommon.h/g_common.h by default.
2323      - fixed problem for adjoint of global_max
2324    o modified verification/carbon/
2325    o New setup for adjoint of global_ocean
2326    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2327    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2328    o incorporated hooks for sponge layer code (external_forcing.F)
2329    
2330    checkpoint45d_post
2331    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2332    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2333      (affects plume_on_slope "cg2d" output)
2334    o add new parameter deltaTfreesurf for free-surface time stepping
2335    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2336    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2337    o change phiMin in exp1 (to agree with documentation)
2338    o add new flags:
2339     - T,S forcing inside/outside Adams-Bashforth
2340     - turn off temp,salt advection and/or forcing
2341     - for each tracer, define internal flag for multiDimAdvection & A-B
2342    o monitor: change definition of KE to check conservation of Energy
2343    
2344    checkpoint45c_post
2345    o Removed f90 comments ("!")
2346    o Modified initialisations to enable exf package for MITgcm
2347      (without invoking ECCO_PACKAGE).
2348    o modifications to gradient check package (Martin Losch)
2349      - enable centered differences
2350      - modified format of standard output
2351    
2352    checkpoint45b_post
2353    o cleaned exchange calls in cg2d
2354    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2355    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2356      to configure barotropic setup (Martin Losch)
2357    o moved some initialisations within bi,bj loop in dynamics
2358      (TAF flow dependency)
2359    o in initialise_varia, moved call packages_init_variables
2360      before convective_adjustment_init
2361      (corresponding adjustment of TAF tape initialisation).
2362    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2363    
2364    checkpoint45a_post
2365    o compute Rho over the whole domain (extend iMin,jMin indices)
2366    o specific exchange for X-slice domain (case Ny=1)
2367    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2368    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2369    
2370    checkpoint44h_post = checkpoint45
2371    o Fix to restore differentiability:
2372      place at which packages_init_variables is called in
2373      initialise_varia is crucial for reverse control flow.
2374    o modifications in GMRedi to enable stable adjoint
2375      (corresponding modif's in thermodynamics, dynamics)
2376    o added missing hook for sponge layer code in external_forcing
2377    o modified test cost functions
2378    o storing in gad_advection (plus removal of write(0,*)!
2379    o missing headers TR1.h added in convective_adjustment routines
2380    o errorMessageUnit set non-equal zero in eeboot
2381      (conflict on some platforms, e.g. IBM SP3)
2382    o modified carbon verif.
2383    
2384    checkpoint44h_pre
2385    o vertical grid option: allow to put the Interface at the middle between
2386      2 cell-centers ; replace delZ in pkg/kpp by drF.
2387    o GM Advective form: Tracers are advected using the residual transport (=
2388      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2389    
2390    checkpoint44g_post
2391    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2392      results) ; ifdef missing in thermodynamics.F
2393    
2394    checkpoint44f_pre,checkpoint44f_post
2395    o added PTRACERS package
2396      This allows an arbitrary number of passive tracers to be integrated
2397      forward simultaneously with the dynamicaly model.
2398      + Implemented so far:
2399        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2400        - I/O and checkpointing
2401        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2402      + Not implemented so far:
2403        - KPP
2404        - OBCS
2405      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2406        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2407        line in data.pkg.
2408      + This package is disabled by default since it increases storage.
2409    
2410    
2411    o testscript: added -cleanup option
2412    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2413                 b) enable to filter 2D fields.
2414    
2415    checkpoint44e_pre,post
2416    o re-wrote convective adjustment to use pre-calculated weights
2417      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2418      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2419      Original calls to convect() still in place.
2420    
2421    chkpt44d_pre,post
2422    o added missing EXCLUDE_MONITOR flags
2423    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2424      (incompatible typ in MIN/MAX expressions caused problems
2425      on IBM SP3)
2426    o in genmake added variable MAKEDEPEND
2427      plus resetting for case SunOS
2428    o added timer_stats.c routine for IBM SP3
2429    o removed variables in dynamics
2430    !!! I forgot to create tag chkpt44d_pre !!!
2431    !!! But chkpt44d_pre = chkpt44c_post    !!!
2432    
2433    o real fresh water flux implemented with non-linear free-surface.
2434    
2435    chkpt44c_pre,post
2436    o few fix (mask in shap_s2, EmPmR in external_field_load,
2437      USE_NATURAL_BCS in solve_for_P);
2438    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2439    
2440    checkpoint44b_pre/_post
2441    o merge of relevant stuff from the ecco-branch:
2442      - genmake: removed $S64 overwrite for case SunOS
2443      - pkg/exf: update and corrections for field swapping and obcs
2444      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2445                  harmonized between ECCO and MITgcm
2446      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2447                      updated checkpointing_lev... lists for obcs
2448      - model/src: minor changes in forward_step, plot_field
2449                   added directive for divided adjoint in the_main_loop
2450      - pkg/mdsio: added mdsio_gl_slice
2451    
2452    o check parameters & config (chkpt44a_pre,post)
2453    o OBC and NonLin_FrSurf.
2454    
2455    checkpoint44
2456    o fix bug in mom_vi_del2uv
2457    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2458    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2459    o update AIM experiments (NCEP input files)
2460    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2461    o added some stuff for AD
2462    
2463    checkpoint43
2464    o added two new advection tests
2465    o added global 4x4 degree ocean test
2466    o added test of H&S94 with free surface on cube
2467    o some final mods for gradient check, adjoint,...
2468    
2469    checkpoint42
2470      Fixed AD-related problems:
2471    o Store directives up-to-date with re-arranged Adams-Bashforth
2472      (mainly thermodynamics.F)
2473    o New store directives for multi-dim. advection schemes
2474      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2475      * new common block and key passkey
2476      (mainly gad_advection.F)
2477    o Modified store directives for split of dynamics/thermodynamics
2478      for the case ALLOW_KPP
2479    o Cleaned argument list for timestep_tracer.F
2480    
2481    checkpoint41
2482    o re-formatted/added comments in prologues of key subroutines
2483      to work with protex
2484    
2485    checkpoint40
2486    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2487    o added FLT (floats) package from Arne along with demo. experiment
2488    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2489      implementation of forward-in-time forcing terms
2490    o more mods for non-linear free-surface including new variable
2491    o modified multi-dim method to work on cube
2492    o bug fix in KPP (from DM)
2493    
2494    checkpoint40pre9
2495    o added DST advection schemes
2496    o fix MPI bug on SGI's
2497    o modifications for non-linear free-surface
2498    o fixed conditionals for fixed flow/passive tracer only mode
2499    o added tension/strain form of stress tensor
2500    o changes to commenting of arguments for TAF/TAMC
2501    o added/updated many matlab scripts
2502    o added multi-dimensional advection method for tracers
2503      
2504    checkpoint40pre8
2505    o new package rw/
2506      Added method for dumping intermediate local arrays:
2507      mdsio_writetile - same as mdsio_writefield except works from inside
2508                        bi,bj loop
2509      mdsio_writelocal - same as mdsio_writetile except works for local
2510                         arrays
2511      write_local_r? - higher-level wrapper for mdsio_writelocal
2512      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2513      Example given at end of mom_vecinv.F that dumps some local arrays.
2514    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2515      control flux-form versus vector invariant code.
2516      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2517      or genmake -DISABLE ...
2518    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2519      (additional storing is now needed for case vecinv;
2520      currently nothing implemented to switch this storing off
2521      in case fluxform is used since no CPP flag available).
2522    
2523    checkpoint40pre7
2524    o bug fix in dynamics.F
2525      calc_viscosity called before k=1,Nr loop.
2526    o added some #ifdef's ALLOW_PASSIVE_TRACER
2527    o cleaned initialisations in ctrl_map_ini
2528      related to TAF
2529    
2530    checkpoint40pre6
2531    o split dynamics into thermodynamics & dynamics
2532    o corresponding split of calc_diffusivity into
2533      calc_diffusivity, calc_viscosity
2534      (kpp_calc_diff, kpp_calc_visc).
2535    o Added diffkr, kapgm to control variables
2536    o bug fix in gmredi_slope_limit for ldd97
2537    
2538    checkpoint40pre5
2539    o proper initialization of Adams-Bashforth time stepping
2540      + uses forward step for very first step of model (iter=0)
2541    o re-generated *all* output since almost all output is modified by this
2542      change (sorry but we've been putting this one off for about 2 years)
2543      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2544        *not* regenerated since they are already out of date and I don't
2545        want to create the impression that they are suddenly working.
2546    o removed KAP stuff for DEC's
2547    o modified/added many .cvsignore files in */code and */input
2548    o added new expt "solid-body.cs-32x32x1"
2549      + this uses an alternative form of ini_curvilinear_grid.F which
2550        is not necessarily any better than the current one...
2551    
2552    checkpoint40pre4
2553    o added re-initialisations of utrans,vtrans,rtrans in
2554      calc_common_factors which are crucial for TAF.
2555    o extended iMin,jMin range for calc_common_factors,
2556      calc_diffusivity
2557    o added option ALLOW_PASSIVE_TRACER
2558    o a few minor updates and fixes
2559    
2560    checkpoint40pre3
2561    o created calc_gtr1.F for gad package
2562    o split the_main_loop and re-introduced forward_step
2563    o some recomputations of nIter0 for TAMC
2564    
2565    checkpoint40pre2
2566    o Updated to latest branch of AJA, JMC
2567    o Added gradient check package
2568    o Added routines for passive tracer handling
2569    o Added carbon sequestration sensitivity experiment
2570    
2571    checkpoint39
2572     o Modifications and fixes to support TAMC
2573       (mainly missing or wrong directives)
2574     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2575       in addummy_in_stepping
2576     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2577     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2578     o Included following packages:
2579       cal: calendar
2580       exf: external forcing
2581       ecco: essential routines to control use of cal, exf
2582             (NB: this is not the full ECCO environment)
2583     o disabled some packages by default in genmake
2584    
2585    checkpoint38
2586     o see notes_c37_adj.txt
2587     o corrected wrong layer index in external_forcing_t
2588     o replaced the_main_loop/forward_step by the_main_loop
2589     o removed forceoutput from write_state
2590       (replaced criteria for initial/final state)
2591     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2592    
2593    checkpoint37
2594     o mdsio.F routine split and packaged in pkg/mdsio
2595       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2596        used unless genmake -disable=mdsio)
2597     o allow a more precise surface-geopotential gradient for the atmosphere
2598       taking into account the change in space of Alpha (=1/rho) at the surface.
2599     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2600       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2601     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2602       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2603       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2604     o Time-Average diagnostics defined as a pseudo package "timeave".
2605     o pickup files : old pickup (before c35) did not work with new code (c35
2606       and after) unless activating 2 commented lines in initialise-varia.
2607     o Non-Hydrostatic pickup file Pb fixed.
2608     o bug with Rigid-lid version (since c35) fixed.  
2609    
2610    checkpoint36
2611     o implement Crank-Nickelson barotropic time-stepping
2612     o recover Time-Average diagnostics
2613     o fix Pb in checkpoint (PR#19)
2614     o AIM become a standard package ; clean unused CPP_kees
2615    
2616    checkpoint35
2617     o subtantial rewrite of dynamics.f
2618     o allows staggered time-stepping
2619     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2620     o added bottom drag (linear + quadratic)
2621    
2622    checkpoint34
2623     o Modified exchange routines for correct reverse simulation.
2624     o Added verification output to comply with bug fix in impldiff.F
2625       as of c33 (exp2, natl_box).
2626     o Corrected store directives in dynamics.F
2627     o Corrected array boundaries in impldiff.F
2628     o Corrected array dimensions in gmredi.
2629       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2630     o Added routine GLOBAL_SUM_INT to global_sum.F
2631     o Added mdsio_gl.F for ECCO purposes.
2632    
2633    checkpoint33
2634     o Fixed bug in lower BC in impldiff.F
2635     o Fixed confusion about units of forcing arrays in FFIELDS.h
2636       namely Fu,Fv,Qnet,Qsw,EmPmR:
2637       - Removed verification/natl_box/code/external_fields_scale.F
2638         (did not differ from that in model/src)
2639       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2640         (see FFIELDS.h for description)
2641       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2642         kpp_calc.F and kpp_transport_t.F
2643       - Removed model/src/external_fields_scale.F and calls to it
2644       - verification/natl_box uses flux data with "atmospheric" sign so
2645         a special version of external_fields_load.F is used to
2646         change the data as it's read in. This way, the arrays
2647         have the right units and signs at all times tha a user could
2648         possibly use them.
2649     o Corrected genmake to delete a temporary file during configuration
2650    
2651    checkpoint32
2652     o Scaling of forcing fields moved from external_forcing.F to
2653       external_fields_scale.F, called directly after loading fields.
2654     o Surface relaxation terms added to surface tendency fields in
2655       extra subroutine.
2656     o impldiff.F changed to avoid storing by TAMC of huge intermediate
2657       fields.
2658     o Changes in GMRedi to comply with packaging structure.
2659     o Modifications and bug fixes in KPP package.
2660     o Verification experiment for KPP added (verification/nat_box/)
2661    
2662    checkpoint31
2663     o Packages interface brought in line with defined standard
2664       -> new routines packages_...F
2665       -> changes in initialise_fixed.F, initialise_varia.F
2666       -> enables initialisation interface for ECCO package
2667     o Rescaling of external forcing fields immediately after read
2668       (removed from external_forcing.F)
2669       -> new: surface_fields_scale.F
2670       -> affects ini_foorcing.F, external_fields_load.F
2671     o Computation of surface tendencies before tendency updates.
2672       -> new: external_forcing_surf.F
2673     o Change of variable names useGMRedi, useKPP, useECCO
2674     o Further changes in dynamics.F, impldiff.F for TAMC
2675     o Tested for experiments 0, 2, 4.
2676       - not yet tested for GMRedi.
2677       - not yet tested for KPP.
2678    
2679  checkpoint30  checkpoint30
2680   o Updates for OBCs   o Updates for OBCs
2681   o New experiment for test OBCs (internal_wave)   o New experiment for test OBCs (internal_wave)

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